CN103388066B - Control method of installation precision of centralized transmission roller table of oriented silicon steel annealing furnace - Google Patents

Control method of installation precision of centralized transmission roller table of oriented silicon steel annealing furnace Download PDF

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CN103388066B
CN103388066B CN201210143356.1A CN201210143356A CN103388066B CN 103388066 B CN103388066 B CN 103388066B CN 201210143356 A CN201210143356 A CN 201210143356A CN 103388066 B CN103388066 B CN 103388066B
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roller
way
furnace
central driving
annealing furnace
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CN103388066A (en
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代义忠
徐丽玲
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MCC5 Group Shanghai Corp Ltd
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MCC5 Group Shanghai Corp Ltd
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Abstract

A control method of installation precision of a centralized transmission roller table of an oriented silicon steel annealing furnace is disclosed; and the control method is characterized by comprising the following steps: a) positioning control of a center line, b), adjusting control of the centralized transmission roller table, c), control for preventing roller constraint, d) checking control of a furnace roller flange and e) inspection of installation effect of the centralized transmission roller table. The control method of the installation precision of the centralized transmission roller table of the oriented silicon steel annealing furnace has the advantages that: the step of adjusting control is reasonable in design and simple to operate, the installation construction time is shortened, the installation precision of the roller table of the furnace body can be effectively improved, the run deviation of product running can be within 10mm, and the method passes thermal state production examine, has no blocking phenomenon, greatly extends the use and the maintenance cycle of the roller table, can ensure the control of the run deviation of strip steels, and can fully meet the use requirements of production.

Description

Oriented silicon steel annealing furnace central driving roller-way installation accuracy control method
Technical field
The present invention relates to a kind of roller-way installation accuracy control method, specifically, is a kind of oriented silicon steel annealing furnace central driving roller-way installation accuracy control method.
Background technology
The continuous decarburizing annealing unit of oriented silicon steel is modern production line, and its finished product oriented silicon steel is the widely used product of electrical field, the long 345m of Horizental annealer, high 3m, wide 2.8m, 232 of roller-ways, average 1.5 meters of roller-ways, are mainly arranged on 8.5m platform.The feature that annealing furnace is installed is that installation period is long, and working procedure is many, and installation workload is large, and labor force has high input.Annealing furnace body of heater equipment is the loose mail supply of material substantially, and field assembly workload is large, and setting accuracy requires high.Any one link construction quality is not controlled well, all can cause unimaginable consequence, as body of heater hydrogen gas leakage exceeds standard, the problem such as furnace roller stuckly cannot move, strip running deviation.
Therefore known oriented silicon steel annealing furnace central driving roller-way installation method exists above-mentioned all inconvenience and problem.
Summary of the invention
Object of the present invention, is to propose a kind of control roller-way and unit verticality, levelness, solves with steel the oriented silicon steel annealing furnace central driving roller-way installation accuracy control method at annealing furnace section sideslip.
Another object of the present invention, is to propose a kind of control and controls the gap at roller-way bottom and top well, in bond during prevention furnace roller thermal load, block the oriented silicon steel annealing furnace central driving roller-way installation accuracy control method that cannot move.
For achieving the above object, technical solution of the present invention is:
An oriented silicon steel annealing furnace central driving roller-way installation accuracy control method, is characterized in that comprising the following steps:
A, medullary ray setting control
Before annealing furnace starts to install, along annealing furnace length direction, at annealing furnace back side, near annealing furnace shell position, at interval of 30m, a sectional center line bracket is set, run through whole annealing furnace;
B, the adjustment of central driving roller-way are controlled
When installing preset pieces additional and prevent from rotating, the end opposite of the micrometer inside caliper of central driving roller-way dedicated test frock slides, make described preset pieces perpendicular to central driving roller-way dedicated test frock body, and preset pieces is arranged on furnace roller, make furnace roller vertical with central driving roller-way dedicated test frock body, by central driving roller-way dedicated test frock directly in external operation of annealing furnace, reach the requirement of controlling roller-way levelness, verticality setting accuracy, the verticality of roller and unit longitudinal cenlerline is controlled in 0.05/1000;
C, the constraint of anti-roller are controlled
By the adjusting bolt of furnace roller flange bottom, control, regulate gap length between furnace roller and refractory materials, control the gap at roller-way bottom and top well, and make roller-way bottom gap be greater than top clearance;
D, the inspection of furnace roller flange are controlled
After being in place, furnace roller is connected and fixed by furnace roller flange and body of heater, it is the emphasis that furnace roller precision is controlled that the Plane Installation precision of furnace roller flange is controlled: vertical direction is fixed on magnetic stand on furnace shell, hang a wire, upper and lower lip-deep 2 distances to wire of control flange, both differ and are no more than 1.5mm is qualified; Horizontal direction checks, along furnace roller flange center position horizontal direction, draws a wire, more vertical its deviation that checks of vertical direction extension wire, and the distance that makes nearly four angles of furnace roller flange surface locate to drawn steel wire vertical line all differs and is no more than 1.5mm;
E, central driving roller-way are installed effect inspection
With central driving roller-way special tool threading rod, check parallelism and the verticality of roller-way, threading rod is placed on to the ingress of annealing furnace, the longitudinal cenlerline of threading rod is overlapped with unit centre line, measure the size of head and the afterbody of threading rod; Threading rod is run to annealing furnace afterbody again and measure the parallelism of threading rod and unit centre line, the annealing furnace tail data detecting and the data of head detection differ within 5mm and illustrate that roller-way installation work completes and meets the requirements.
Oriented silicon steel annealing furnace central driving roller-way installation accuracy control method of the present invention can also be further achieved by the following technical measures.
Aforesaid method, in wherein said step b, the length of central driving roller-way dedicated test frock is: frock rotation overall length 2.4m, radius 1.2m.
Aforesaid method, in wherein said step c, roller-way top clearance is set to 3mm, and roller-way bottom gap is set to 13mm.
Aforesaid method, in wherein said step e, central driving roller-way special tool threading rod adopts SUS310 stainless steel to make, between two stainless steel tubes that be arranged in parallel, be welded and fixed some intermediate connection tubes, one end at threading rod stainless steel tube is welded and fixed the rectangle back guide that hollow out window is set in the middle of, and the other end is welded and fixed a rectangle front guide; Central driving roller-way special tool threading rod long 8m, wide 0.3m.
Aforesaid method, wherein said central driving roller-way special tool threading rod must not side sway and distortion.
Adopt after technique scheme, oriented silicon steel annealing furnace central driving roller-way installation accuracy control method of the present invention has the following advantages:
1, it is reasonable in design, simple to operate that step is controlled in adjustment, shortened the installation time;
2, effectively improve the setting accuracy of overlength body of heater roller-way, make product operation running deviation value in 10mm, be better than the 20mm of requirement;
3, by hot production, examine, without any bite phenomenon, greatly extended use and the turnaround of roller-way; Guarantee the control with steel operation running deviation value, met the service requirements of producing completely.
Accompanying drawing explanation
Fig. 1 is the medullary ray setting control schematic diagram of the embodiment of the present invention;
Fig. 2 is that the furnace roller verticality of the embodiment of the present invention is adjusted tool structure schematic diagram;
Fig. 3 is that furnace roller and the unit verticality of the embodiment of the present invention adjusted schematic diagram;
Fig. 4 is the furnace roller Level-adjusting schematic diagram of the embodiment of the present invention;
Fig. 5 is that the furnace roller flange of the embodiment of the present invention checks schematic diagram;
Fig. 6 is that the furnace roller flange of the embodiment of the present invention checks side-view;
Fig. 7 is that the furnace roller sideslip of the embodiment of the present invention checks special tool schematic diagram;
Fig. 8 is that the furnace roller constraint of the embodiment of the present invention checks schematic diagram.
In figure: 1 sectional center line, 2 unit centre lines, 3 central driving roller-way dedicated test frocks, 4 milscales, 5 preset piecess, 6 furnace rollers, 7 steel wires, 8 lubricating cups, 9 furnace shells, 10 furnace roller flanges, 11 back guides, 12 front guides, 13 intermediate connection tubes, 14 pipe connectings, 15 adjusting bolts, 16 bearing block for furnace rollers, 17 refractory materialss.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
Now refer to Fig. 1, the medullary ray setting control schematic diagram that Fig. 1 is the embodiment of the present invention.As shown in the figure, described medullary ray 1 is parallel with unit centre line 2.
Oriented silicon steel annealing furnace central driving roller-way installation accuracy control method of the present invention, is characterized in that comprising the following steps:
A, medullary ray setting control
Before annealing furnace starts to install, along annealing furnace length direction, at stove back side, near furnace shell position, at interval of 30m, a sectional center line bracket is set, run through whole annealing furnace; Set a distance arranges after medullary ray support thus, effectively controls and rocks the deviation causing because of the long steel wire of medullary ray.
B, the adjustment of central driving roller-way are controlled
Fig. 2 is that the furnace roller verticality of the embodiment of the present invention is adjusted tool structure schematic diagram.Central driving roller-way dedicated test frock 3 is known standard detection apparatus, in its end opposite of micrometer inside caliper, installing preset pieces additional slides when preventing from rotating, make described preset pieces perpendicular to central driving roller-way dedicated test frock body, and preset pieces is arranged on furnace roller, make furnace roller vertical with central driving roller-way dedicated test frock body, by central driving roller-way dedicated test frock, directly in body of heater outside, operate, reach and control roller-way levelness, the requirement of verticality setting accuracy, it is 0.10/1000 that the national standard of the verticality of roller and unit longitudinal cenlerline requires the verticality of roller and unit longitudinal cenlerline, central driving roller-way dedicated test frock of the present invention changes traditional entering on the inherent roller table surface of body of heater and detects with instrument, adjust the mode of roller-way, make to detect directly in the operation of body of heater outside.
Fig. 3 is that furnace roller and the unit verticality of the embodiment of the present invention adjusted schematic diagram, Fig. 4 is that the length of central driving roller-way dedicated test frock is described in the furnace roller Level-adjusting schematic diagram of the embodiment of the present invention: frock rotation overall length 2.4m, radius 1.2m, effectively by roller-way deviation control in higher regulating scope.
C, the constraint of anti-roller are controlled
Fig. 8 is that the furnace roller constraint of the embodiment of the present invention checks schematic diagram.It is when refractory materials construct that the constraint of anti-roller is controlled, and by the adjusting bolt 15 of furnace roller flange bottom, controls, and regulates gap length between furnace roller and resistance to material, controls well bottom roller-way and the gap at top, requires roller-way bottom gap to be greater than top clearance; The A of top clearance described in figure is set to 3mm, and bottom gap B is set to 13mm, and while having overcome the hot work of body of heater, resistance to material is heated and upwards expands and fetter roller-way, otherwise can make part roller-way normally not move, and finally causes roller-way to damage.
D, the inspection of furnace roller flange are controlled
Fig. 6 is that the furnace roller flange of the embodiment of the present invention checks side-view.After being in place, furnace roller is connected and fixed by furnace roller flange and body of heater, it is the emphasis that furnace roller precision is controlled that the Plane Installation precision of furnace roller flange is controlled: vertical direction is fixed on magnetic stand on furnace shell, hang a wire, upper and lower lip-deep 2 points of control flange, in figure, C point and D point are to the distance of wire, and both differ can not be qualified over 1.5mm.
In checking in the horizontal direction, along furnace roller flange center position horizontal direction, draw a wire, more vertical its deviation that checks of vertical direction extension wire, the distance that makes nearly four angles of furnace roller flange surface locate to drawn steel wire vertical line all differs and is no more than 1.5mm.Fig. 5 is that the furnace roller flange of the embodiment of the present invention checks schematic diagram, A in figure, A', B and B' are the point at place, nearly four angles of furnace roller flange surface, make A and A' be no more than 1.5mm to differing between the distance of wire 7, B and B' are no more than 1.5mm between the distance of wire 7, and same A and B and A' and B' are qualified to being no more than 1.5mm between the distance of wire 7.If check furnace roller flange, between A and A' between size, B and B' between size, A and B between size, A' and B' size exceed allowed band, need readjust flange size.
E, central driving roller-way are installed effect inspection
Fig. 7 is that the furnace roller sideslip of the embodiment of the present invention checks special tool schematic diagram.Roller-way is installed a last important step and is checked exactly roller-way whether to reach band steel operational conditions: the parallelism and the verticality that with central driving roller-way special tool threading rod, check roller-way, make a central driving roller-way special tool threading rod, described central driving roller-way special tool threading rod adopts SUS310 stainless steel to make, between two stainless steel tubes that be arranged in parallel 14, be welded and fixed some intermediate connection tubes 13, one end at threading rod stainless steel tube is welded and fixed the rectangle back guide 11 that hollow out window is set in the middle of, the other end is welded and fixed a front guide 12, central driving roller-way special tool threading rod long 8m, wide 0.3m, the threading rod of making is placed on to the ingress of annealing furnace, the longitudinal cenlerline of threading rod is overlapped with unit centre line, measure the size of head and the afterbody of threading rod, make the A-A1 in figure equate to guarantee special tool and unit centre line parallel with B-B1, again threading rod is run to the parallelism of again measuring threading rod and unit centre line after annealing furnace afterbody, then the data of the data that detect and head detection differ within 5mm and illustrate that roller-way installation work completes and meets the requirements.
The roller-way of central driving described in use special tool threading rod must not side sway and distortion.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.

Claims (3)

1. an oriented silicon steel annealing furnace central driving roller-way installation accuracy control method, is characterized in that comprising the following steps:
A, medullary ray setting control
Before annealing furnace starts to install, along annealing furnace length direction, at annealing furnace back side, near annealing furnace shell position, at interval of 30m, a sectional center line bracket is set, run through whole annealing furnace;
B, the adjustment of central driving roller-way are controlled
When installing preset pieces additional and prevent from rotating, the end opposite of the micrometer inside caliper of central driving roller-way dedicated test frock slides, make described preset pieces perpendicular to central driving roller-way dedicated test frock body, and preset pieces is arranged on furnace roller, make furnace roller vertical with central driving roller-way dedicated test frock body, by central driving roller-way dedicated test frock directly in external operation of annealing furnace, reach the requirement of controlling roller-way levelness, verticality setting accuracy, the verticality of roller and unit longitudinal cenlerline is controlled in 0.05/1000; The length of central driving roller-way dedicated test frock is: frock rotation overall length 2.4m, radius 1.2m;
C, the constraint of anti-roller are controlled
By the adjusting bolt of furnace roller flange bottom, control, regulate gap length between furnace roller and refractory materials, control the gap at roller-way bottom and top well, and make roller-way bottom gap be greater than top clearance;
D, the inspection of furnace roller flange are controlled
After being in place, furnace roller is connected and fixed by furnace roller flange and body of heater, it is the emphasis that furnace roller precision is controlled that the Plane Installation precision of furnace roller flange is controlled: vertical direction is fixed on magnetic stand on furnace shell, hang a wire, upper and lower lip-deep 2 distances to wire of control flange, both differ and are no more than 1.5mm is qualified; Horizontal direction checks, along furnace roller flange center position horizontal direction, draws a wire, more vertical its deviation that checks of vertical direction extension wire, and the distance that makes nearly four angles of furnace roller flange surface locate to drawn steel wire vertical line all differs and is no more than 1.5mm;
E, central driving roller-way are installed effect inspection
With central driving roller-way special tool threading rod, check parallelism and the verticality of roller-way, threading rod is placed on to the ingress of annealing furnace, the longitudinal cenlerline of threading rod is overlapped with unit centre line, measure the size of head and the afterbody of threading rod; Threading rod is run to annealing furnace afterbody again and measure the parallelism of threading rod and unit centre line, the annealing furnace tail data detecting and the data of head detection differ within 5mm and illustrate that roller-way installation work completes and meets the requirements; Central driving roller-way special tool threading rod adopts SUS310 stainless steel to make, between two stainless steel tubes that be arranged in parallel, be welded and fixed some intermediate connection tubes, one end at threading rod stainless steel tube is welded and fixed the rectangle back guide that hollow out window is set in the middle of, and the other end is welded and fixed a rectangle front guide; Central driving roller-way special tool threading rod long 8m, wide 0.3m.
2. oriented silicon steel annealing furnace central driving roller-way installation accuracy control method as claimed in claim 1, is characterized in that, in described step c, roller-way top clearance is set to 3mm, and roller-way bottom gap is set to 13mm.
3. oriented silicon steel annealing furnace central driving roller-way installation accuracy control method as claimed in claim 1, is characterized in that, described central driving roller-way special tool threading rod must not side sway and distortion.
CN201210143356.1A 2012-05-10 2012-05-10 Control method of installation precision of centralized transmission roller table of oriented silicon steel annealing furnace Active CN103388066B (en)

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CN110172563B (en) * 2019-05-13 2020-10-20 上海二十冶建设有限公司 Debugging method for silicon steel continuous annealing unit after first belt threading test operation and then furnace baking
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