CN216679547U - Quick switching system for production of acid-washing flat coil and black flat coil - Google Patents
Quick switching system for production of acid-washing flat coil and black flat coil Download PDFInfo
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- CN216679547U CN216679547U CN202123446362.8U CN202123446362U CN216679547U CN 216679547 U CN216679547 U CN 216679547U CN 202123446362 U CN202123446362 U CN 202123446362U CN 216679547 U CN216679547 U CN 216679547U
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Abstract
The utility model relates to a quick switching system for production of acid-washing flat rolls and black flat rolls, which belongs to the technical field of steel rolling. In addition, the quick washing nozzle is arranged at the upper part of the acid tank to wash residual acid in the acid tank, so that the acid tank cover can be opened in a short time, the process conversion/adjustment time is shortened, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of steel rolling, and relates to a quick switching system for production of acid-washing flat coils and black flat coils.
Background
At present, the traditional hot continuous rolling mill, the short-process ESP and the Castrop can stably roll hot-rolled strip steel with the thickness of about 0.8mm, particularly, the proportion of the thickness of a product produced by the short-process continuous casting and rolling, which is less than or equal to 1.2mm, exceeds 50 percent, the product is positioned to replace cold by hot, and the added value is higher. However, the difference between the plate shape, mechanical property and surface quality of the product and the cold rolled product is large, and the product basically needs to be subjected to deep processing by a continuous pickling leveling machine set or a continuous leveling straightening and withdrawing machine set to meet the requirements of downstream customers on the plate shape, the product performance and the surface quality. With the change of market conditions, the demand of acid-washing flat rolls and black flat rolls fluctuates greatly. If the black flat coil production is large, the continuous acid-washing temper mill is switched to produce the black flat coil. In order to save investment, more enterprises only build 1 pickling leveling unit and switch between production of pickling leveling coils and production of black leveling coils. When the acid-washing flat coil is switched into the black flat coil, the conventional drying roller is utilized, and the high-speed dry friction causes serious abrasion and even scrapping of the drying roller. When the process is switched to the acid-washing flattening roll process, all the drying rollers need to be replaced, and the cost is high. In addition, when the acid tank is switched to the black flat roll, a large amount of labor and time are needed to wash the residual acid in the acid tank after the acid in the acid tank is emptied. In addition, during black flat roll production, the acid mist fan needs a large air volume to prevent the acid mist from returning to the acid tank, but the high-speed operation of the acid mist fan has large energy consumption and large acid-containing waste gas discharge.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a system for rapidly switching between production of acid-washing flat rolls and production of black flat rolls, so as to achieve production of black flat rolls on a continuous acid-washing flat machine set, and achieve rapid switching between production of acid-washing flat rolls and production of black flat rolls.
In order to achieve the purpose, the utility model provides the following technical scheme:
a quick switching system for production of acid-washing flat rolls and black flat rolls comprises an acid tank, wherein a plurality of wringing rollers for production of acid-washing flat rolls are arranged in the acid tank, a plurality of acid supply switch valves are arranged on one side of the acid tank, an acid mist outlet communicated with an acid mist air pipe is arranged at the top of the acid tank, and a plurality of acid discharge switch valves are arranged at the bottom of the acid tank; the device also comprises a plurality of special black flat roll rollers which can be arranged at the installation positions of the drying rollers and are used for black flat roll production, and a quick roller changing device which is positioned on one side of the acid tank, so that the quick switching between the drying rollers and the special black flat roll rollers can be realized when the production modes are switched.
Optionally, an acid mist air pipe switch valve is arranged at the position, corresponding to the acid mist outlet, of the top of the acid tank.
Optionally, a plurality of quick washing nozzles are arranged at the upper part of the acid tank to wash the residual acid in the acid tank.
Optionally, a wringing roller lining layer is arranged on the surface of the wringing roller, and the wringing roller lining layer is made of rubber hypalon.
Optionally, a roller liner layer special for black flat winding is arranged on the surface of the roller special for black flat winding, and the roller liner layer special for black flat winding is made of polyurethane.
The utility model has the beneficial effects that:
1. the utility model realizes the rapid switching of the production modes of the black flat coil and the acid pickling flat coil, and shortens the time for switching the acid pickling flat coil into the flat withdrawing and straightening black flat coil from the original 6h to 2 h; the time required for switching the leveling, pulling and straightening black flat coil into an acid-washing flat coil is shortened to 3 hours from the original 8-12 hours; the flexible demand of market orders is met.
2. The utility model adopts the special roller for the black flat coil during the production of the black flat coil, thereby reducing the consumption of the drying roller.
3. When the black flat roll is produced, the acid mist fan can keep the negative pressure of the acid tank by maintaining small air quantity, and the utility model has low energy consumption and small acid mist discharge.
4. When the black flat roll is produced, the acid liquor in the acid tank can be stored in the acid tank without being discharged to an acid regeneration station, so that the acid discharge time and the acid addition time are reduced, and the energy consumption is reduced.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front view of a fast switching system;
FIG. 2 is a top view of a fast switching system;
fig. 3 is a side view of a fast switching system.
Reference numerals: the device comprises an acid tank 1, a drying roller 2, a black flat roll special roller 3, a quick roller changing device 4, an acid supply switch valve 5, an acid discharge switch valve 6, a quick washing nozzle 7 and an acid mist air pipe switch valve 8.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the utility model, shown in the drawings are schematic representations and not in the form of actual drawings; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms described above will be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 to 3, a fast switching system for acid-washing flat roll and black flat roll production comprises an acid tank 1, wherein a plurality of wringing rollers 2 for acid-washing flat roll production are arranged in the acid tank 1, a plurality of acid supply switch valves 5 are arranged on one side of the acid tank 1, an acid mist outlet communicated with an acid mist air pipe is arranged at the top of the acid tank 1, an acid mist air pipe switch valve 8 is arranged at a position, corresponding to the acid mist outlet, at the top of the acid tank 1, and a plurality of acid discharge switch valves 6 are arranged at the bottom of the acid tank 1; the device also comprises a plurality of special black flat roll rollers 3 which can be arranged at the installation positions of the drying rollers and used for black flat roll production, and a quick roller changing device 4 which is positioned on one side of the acid tank 1, so that the drying rollers 2 and the special black flat roll rollers 3 can be quickly switched when the production modes are switched.
The utility model adopts the wringing roller 2 when the acid cleaning flat coil is produced, and adopts the special roller 3 for the black flat coil when the black flat coil is produced, thereby reducing the consumption of the wringing roller 2; the quick switching between the drying roller 2 and the black flat roll special roller 3 is realized through the quick roller changing device 4 when the production modes are switched, the low-cost production of the black flat roll on a continuous acid cleaning leveling machine set is realized, the quick switching between the acid cleaning leveling roll production and the black flat roll production is also realized, and the roller changing time is reduced.
Optionally, a plurality of quick washing nozzles 7 are arranged at the upper part of the acid tank to wash the residual acid in the acid tank 1. According to the utility model, the quick washing nozzle 7 is arranged at the upper part of the acid tank to wash the residual acid in the acid tank 1, so that the acid tank cover can be opened in a short time, the process conversion/adjustment time is reduced, and the production efficiency is improved.
Optionally, a wringing roller lining layer is arranged on the surface of the wringing roller 2, and the wringing roller lining layer is made of rubber hypalon; the surface of the black flat rolling special roller 3 is provided with a black flat rolling special roller lining layer which is made of polyurethane. The surface of the wringing roller 2 is lined with the rubber Hepaton, has certain elasticity, and can quickly wring acid liquor on the surface of the strip steel; the surface lining layer polyurethane of the special roller 3 for the black flat winding has wear resistance and aging resistance, and can prolong the service cycle of the carrier roller.
The quick switching system realizes the quick switching of the production process of the acid cleaning flat coil and the black flat coil by switching between the wringing roller 2 of the acid cleaning section and the special roller 3 of the black flat coil and switching of a valve of an acid tank matching system, and the specific switching method comprises the following steps:
the first mode is as follows: the acid-washing flat coil is switched to black flat coil production: the production of acid-washing flat coils is switched to black flat coils: and (3) closing the acid circulation system and the acid supply switch valve 5, opening the acid discharge switch valve 6, opening the quick washing spray nozzle 7 after the acid liquor is completely emptied, and closing the acid discharge switch valve 6, the quick washing spray nozzle 7 and the acid mist air pipe switch valve 8 after the residual acid liquor is washed. Meanwhile, the squeezing roller 2 is replaced by a special roller 3 for black flat winding by a quick roller replacing device 4. Opening the tank cover, checking and confirming, increasing the set tension of the acid tank to the unit tension of the strip steel of more than or equal to 15N/mm after all equipment meets the requirements2The acid tank can be used for producing the black plain coil.
And a second mode: the production is switched from black flat coil to acid washing flat coil: the iron powder in the acid tank 1 is cleaned preliminarily by manpower, the special roller 3 for the black flat roll is replaced by the wringing roller 2 by the quick roller replacing device 4, and then the acid supply switch valve 5, the acid discharge switch valve 6 and the acid mist air pipe switch valve 8 are opened. Closing the tank cover, supplementing sealing water to the tank cover, checking to confirm that all equipment meets the requirements, and adjusting the set tension of the acid tank to the state that the unit tension of the strip steel is more than or equal to 10N/mm2And the acid tank can be used for producing acid-washing flat rolls.
The application relates to a quick roll changing device 4, which is suitable for a drying roll 2 and a black flat roll special roll 3, wherein the surface lining layer of the drying roll 2 is HIPAREN rubber, and the surface lining layer of the black flat roll special roll 3 is polyurethane. According to the production process, an acid supply switch valve 5, an acid discharge switch valve 6 and an acid mist air pipe switch valve 8 are controlled, and the acid circulation and the rotating speed of an acid mist fan are adjusted to ensure that no acid mist overflows from an acid tank 1 to corrode strip steel and the workshop environment; according to the production process, the tension of the strip steel is adjusted, and the sag of the strip steel is controlled to be matched with the depth of the acid tank 1, so that the strip steel is prevented from rubbing the bottom of the acid tank 1 when the black flat coil runs at a high speed.
The utility model can produce the black flat roll on the continuous acid cleaning leveling unit, adopt and adapt to 2 and black flat roll fast roll changing device 4 of the special roller 3 of roll to realize the fast roll changing, has reduced the roll changing time, has realized the fast switch over of acid cleaning flat roll and black flat roll production technology, wherein, the acid cleaning flat roll production adopts the squeeze roll 2, the black flat roll production adopts the special roller 3 of black flat roll, has reduced the consumption of the squeeze roll 2; according to the production process, the tension of the strip steel is adjusted, the sag of the strip steel is controlled to be matched with the depth of the acid tank 1, and the phenomenon that the strip steel rubs the bottom of the acid tank 1 when the black flat coil runs at a high speed to scratch the surface of the strip steel and the acid tank 1 is ignited is avoided; according to the production process, an acid supply switch valve 5, an acid discharge switch valve 6 and an acid mist air pipe switch valve 8 are switched, the acid circulation and the rotating speed of an acid mist fan are adjusted, the condition that no acid mist overflows from an acid tank 1 to corrode strip steel and the workshop environment is ensured, and the energy consumption and the acid mist discharge amount are reduced; the quick washing spray head 7 is arranged on the upper part of the acid tank to wash residual acid in the acid tank 1, so that the acid tank cover can be opened in a short time, the process conversion/adjustment time is shortened, and the production efficiency is improved.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (5)
1. A quick switching system of pickling flat coil and black flat coil production which characterized in that: the device comprises an acid tank, wherein a plurality of wringing rollers for acid-washing flat coil production are arranged in the acid tank, a plurality of acid supply switch valves are arranged on one side of the acid tank, an acid mist outlet communicated with an acid mist air pipe is arranged at the top of the acid tank, and a plurality of acid discharge switch valves are arranged at the bottom of the acid tank; the device also comprises a plurality of special black flat roll rollers which can be arranged at the installation positions of the drying rollers and are used for black flat roll production, and a quick roller changing device which is positioned on one side of the acid tank, so that the quick switching between the drying rollers and the special black flat roll rollers can be realized when the production modes are switched.
2. The system of claim 1 for rapid changeover between acid wash flat coil and black flat coil production, wherein: the top of the acid tank is provided with an acid mist air pipe switch valve corresponding to the position of the acid mist outlet.
3. The system of claim 1 for rapid changeover between acid wash flat coil and black flat coil production, wherein: the upper part of the acid tank is provided with a plurality of quick washing nozzles to wash the residual acid in the acid tank.
4. The system of claim 1 for rapid changeover between acid wash flat coil and black flat coil production, wherein: the surface of the wringing roller is provided with a wringing roller lining layer which is made of rubber of hypaeron.
5. The system of claim 1 for rapid changeover between acid wash flat coil and black flat coil production, wherein: the surface of the special roller for the black flat winding is provided with a special roller lining layer for the black flat winding, and the special roller lining layer for the black flat winding is made of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123446362.8U CN216679547U (en) | 2021-12-31 | 2021-12-31 | Quick switching system for production of acid-washing flat coil and black flat coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123446362.8U CN216679547U (en) | 2021-12-31 | 2021-12-31 | Quick switching system for production of acid-washing flat coil and black flat coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216679547U true CN216679547U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123446362.8U Active CN216679547U (en) | 2021-12-31 | 2021-12-31 | Quick switching system for production of acid-washing flat coil and black flat coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216679547U (en) |
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2021
- 2021-12-31 CN CN202123446362.8U patent/CN216679547U/en active Active
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