Nghiên cứu xử lý sự cố missroll trong vận hành hệ thống cán của dây chuyền cán thép vằn

iv


 

10/2011-04/2013.





khâu nào b
thép, 
                  
 

        
        
     Tuy nhiên, quá

         

 







               

 




rình.
v

ABSTRACT

Topic: research handling missroll incident in the operating system's rolling of
rolling rebar.
Time: 10/2011-04/2013.
Science automation development makes for development industry,
production models are made highly automation. The steel industry, with highly
dangerous, toxic has been at the forefront in the application of automation model.
Features of automated production, stages must comply with the production rate, a
stalled stage will affect the manufacturing process. In steelmaking, rolling system
plays a key role, this system has the problem will slow down the production
process. A common problem of rolling system is
missroll incident (as rolled material can not into
rollers, extrusion, fly out). Missroll cause
damage such as: stop the production, damage
guide, break rollers, cause a fire, unsafe for
human. However, finding and handling are due
to human supervision and implementation. So, I
would choose the research finding, handling
missroll incident in the operating system's
rolling of rolling rebar to be able to quickly
detect, reduce processing time 

Method 1: based on the load of rolling equipment to detect and provide
treatment measures. Object rolled over rolling, load of rolling equipment is price
increase. This method saves materials but disturbed by the incident in bearing or
shaft of the gearbox, load of rolling equipment is no true.
Method 2: sensor is placed after rolling equipment, when the object is rolled
over, the sensor will be detected. This method costs to buy the sensor but with the
signal obtained with easy and accuracy. This is content of topic.
Solving: when the object is rolled over rolling equipment 1, first sensor will
detect, after a period, the second sensor must detect object. Otherwise error message
missroll, and make the settlement.
Topic can reduce time process caused by missroll, and the consequences that
it brings, contributing to improve the productivity.

vi

MỤC LỤC
a TRANG

 i
 ii
 iii
 iv
 vi
Danh sách các hình  x
 xv
 1
  2
1.1 T 2
1.2 
 5

 5
1.5  6
T  7
2.1  7
2.2  7
2.3  8
vii

2.3.1 Phôi cán:  8
2.3.2  9
2.3.3 Máy cán: 11
2.3.4  12
2.3.5  12
2.4  14
2.5  21
 22
3.1  22
3.2  24
3.2.1  24
3.2.2 -300.  26
3.2.3  28
3.2.3.1 28
 28
a. ) 29
b. Module CPU 
c. Module SM (signal module): 36
d. Module DI (Digital Input)  36
e. Module DO (Digital Output)  36
f. Module DI/DO  36
g. Module AI (Analog Input)  36

h. Module AO (Analog output)  36
viii

i. Module AI/AO 36
j. Modul 37
-300  37
 38
3.2.5.1 38
3.2.5.2 38
 39
 41
3.2.8 -300  42
3.3  42
3.3.1  43
3.3.2  49
3.3.3  49
3.3.3.1  49
3.3.3.2 i: 50
3.3.3.3  50
3.3.3.4  51
3.3.3.5  52
 53
 53

 54
4.1  54
ix

4.2  55
4.3  56

4.4  57
4.5  57
4.5.1  57
4.5.2  58
4.6  59
4.7  61
  62
5.1  66
5.2  66
5.3  123
 136
6.1  136
6.2  142
6.3  153
6.4  156
6.5  164
 169
  170

x

DANH SÁCH CÁC HÌNH
 3
Hình 1.2 Missroll dàn cán thô  5
Hình 2.1  9
Hình 2.2  10
Hình 2.3  11
 13
 14
 14

Hình 2 15
 16
 16
 17
Hình 2.11 Giá cán 17
Hình 2.12 Quá trình cán ép  18
 19
Hình 2.14 Sàn Coolingbed  19
Hình 2.15 Kho  20
 22
 23
 27
Hình 3.4  29
Hình 3.5 Module CPU  35
xi

Hình 3.6  37
Hình 3.7  38
Hình 3.8  38
Hình 3.9  39
Hình 3.10  40
Hình 3.11  40
Hình 3.12  41
Hình 3.13  43
Hình 3.14  44
Hình 3.15  45
Hình 3.16  46
Hình 3.17  47
Hình 3.18 47
Hình 3.19  48

Hình 3.20  50
Hình 3.21  50
Hình 3.22  51
Hình 3.23  51
Hình 3.24  52
Hình 3.25  52
 58
 59
 60
 60
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Hình 5.1  64
 64
Hình 5.3  66
Hình 5.4  67
Hình 5.5   68
Hình 5.6  75
Hình 5.7  75
Hình 5.8 i  76
Hình 5.9  77
Hình 5.10  77
Hình 5.11  78
Hình 5.12  78
Hình 5.13 Th 79
Hình 5.14  79
Hình 5.15  80
Hình 5.16  81
Hình 5.17  81
 136

 136
 137
 137
 138
 138
 139
xiii

 139
 140
 140
 141
 141
 142
 143
 143
 144
 145
 145
 146
 147
 147
connection 148
 148
 149
 149
 150
 150
 151
 151

 152
xiv

 152
 153
 153
 154
 154
 155
 155
 156
ging vào 156
Hình 6.40 
Hình 6.41  157
 158
 158
 159
-3 159
Hình 6.46 Missroll dàn trung 160
 160
-1 161
-14 161
 162
-8 162
 163
-11 163

xv



Bảng 5.1   63
Bảng 5.2   65
Bảng 5.3  ngõ ra  69
Bảng 6.1   164
Bảng 6.2 So sánh   165





1

LI NÓI ĐU

 

 


               
không 






man







 

Nghiên cu xử lý sự cố missroll trong vận hƠnh h thống cán ca dơy chuyền
cán thép vằn


2

CHNG 1


1.1 Tính cp thiết ca đề tƠi:




 





 

 






 




3

th tính thông qua

                
nhàng 






 


 



Hình 1.1 

4






nghiên cu xử lý sự cố missroll trong vận hƠnh h
thống cán ca dơy chuyền cán thép vằn



1.2 Ý nghĩa ca đề tƠi:


- Kỹ thuật




- Kinh tế



- Nhơn văn
 

   




5


Hình 1.2 Missroll dàn cán thô
1.3 Mục tiêu nghiên cu ca đề tƠi:


- 

- 
- 
cao.
1.4 Nhim vụ, gii hn đề tƠi:


cao h

- 

6

- 
- 


1.5 Phng pháp nghiên cu:

ra:

- 

- 

-   
- 












7

CHNG 2


2.1 Sự phát triển ca ngƠnh cán thép trên thế gii:
 


 

  

nh.




               

2.2 Sự phát triển ca ngƠnh cán thép ở Vit Nam:


(1960-

và



8

                


     -         
           
-
              
hép. Ngành cán



 


,




  

2.3 Các khái nim c bn ca quá trình cán thép:
2.3.1 Phôi cán:

khác nhau.

9


Hình 2.1 
 



                 
            
 


2.3.2 Sn phẩm cán:
 thép 





10

 
              
  



- 

- 
-  




Hình 2.2 

11

2.3.3 Máy cán:
  



- 



- 

- 


Hình 2.3 
I: nguồn động lực, II: hệ thống truyền động, III: giá cán
1: trục cán, 2: nền giá cán, 3: trục nối, 4: khớp nối, 5, 8: thân giá, 6: bánh răng,
7, 11: khớp nối, 9,10: hộp giảm tốc, 12: động cơ điện, 13: vỏ hộp, 14: ổ đỡ.

12




2.3.4 Công ngh cán nóng:

                



làm 
 




 

CTT

chaynung
0
)150200( 


T


0
C).
2.3.5 Công ngh cán nóng liên tục (CNLT):
 


13

w1
Vv1
Vr1
Vv2
Vr2
Vv3
Vr3
F1v1=
F2v2=
F3v3=
w
2
w3

Hình 2.4. 


F
i
.v
i
= const

F
i

v
i











 



