CN216679580U

CN216679580U - Acid-free descaling system for strip steel

Info

Publication number: CN216679580U
Application number: CN202123115686.3U
Authority: CN
Inventors: 刘玉堂
Original assignee: CISDI Research and Development Co Ltd
Current assignee: CISDI Research and Development Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-07
Anticipated expiration: 2031-12-03

Abstract

The utility model belongs to the technical field of metal surface treatment, and relates to a strip steel acid-free descaling system which comprises an uncoiler, a pinch roll, a head and tail shearing machine, a descaling machine, a steel plate side surface descaling device, an acid-free descaling device, a surface water film cleaning device, a tension pinch device and a coiler which are sequentially arranged in the strip steel rolling direction. The descaling system disclosed by the utility model is acid-free and environment-friendly, and can be used for increasing the side descaling of the steel plate, improving the overall quality of the product and increasing the yield and economic benefit of steel products.

Description

Acid-free descaling system for strip steel

Technical Field

The utility model belongs to the technical field of metal surface treatment, and particularly relates to a strip steel acid-free descaling system.

Background

Before the hot-rolled strip steel is used, a considerable part of the hot-rolled strip steel needs to be cleaned of surface scale (commonly called 'scale'). The traditional descaling method adopts acid washing to descale, and is limited in use due to the problem of environmental pollution. Thus, various new environmental-friendly descaling technologies have been developed, and the most widely used and studied technology is the wet shot blasting descaling technology, which has the advantages of environmental protection, high descaling efficiency, uniform descaling, etc., as shown in fig. 1. However, because the impeller head is mainly arranged on the upper surface and the lower surface of the steel plate, and the projected mortar belt and the steel plate have a certain angle, the included angle between the mortar and the two side surfaces of the steel plate is small, even the side surfaces can not be hit, and the descaling effect of the two side surfaces of the steel plate is poor.

Part of the production units are provided with disc shears to cut off the edges of the steel plates, and the descaling of the side surfaces of the steel plates can not be considered, but most of the production units are not provided with disc shears, especially narrow strip steel, or descaling strips are used for rolling and galvanizing, so that the trimming can cause great waste, and the yield of steel is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model aims to solve the problem that the two side surfaces of a steel plate cannot be descaled in the existing shot blasting descaling system, and provides an acid-free descaling system for strip steel.

In order to achieve the purpose, the utility model provides the following technical scheme:

the strip steel acid-free descaling system comprises an uncoiler, pinch rolls, a head and tail shearing machine, a descaling machine, a steel plate side descaling device, an acid-free descaling device, a surface water film cleaning device, a tension pinch device and a coiling machine which are sequentially arranged along the strip steel rolling direction.

Further, the steel plate side surface descaling device comprises a grinding device, a movable base, a fixed support and a control system; the polishing device is arranged on the movable base and positioned on the side surface of the strip steel to polish and descale the side surface of the strip steel; the fixed bracket is provided with a guide rod; the movable base is connected with the guide rod in a sliding manner, and a power device for driving the movable base to slide on the guide rod is further arranged on the movable base; the grinding device is provided with a pressure sensor, the power device and the pressure sensor are connected with the control system, and the control system compares a pressure value obtained by the pressure sensor with a set descaling pressure value, so that the grinding device is controlled by moving the base, and descaling pressure control is realized. The steel plate side descaling device can automatically adjust the width according to the width of the strip steel, ensure the contact and finely adjust the width according to the fed-back contact force.

Furthermore, the number of the grinding devices is at least 2, and the grinding devices are respectively positioned on two sides of the strip steel.

Furthermore, the steel plate side surface descaling device and the acid-free descaling device are both connected with the same dedusting and demisting system.

Further, the scale breaker is a straightening and pulling scale breaker or a roller type straightening machine.

Furthermore, at least one set of steel plate side descaling devices are sequentially arranged along the rolling direction of the strip steel.

Furthermore, at least one set of acid-free descaling devices are sequentially arranged along the rolling direction of the strip steel.

Further, the surface water film cleaning device comprises a drying roller, an air knife and/or a dryer.

The utility model has the beneficial effects that:

1) the descaling system of the utility model is acid-free and environment-friendly.

2) The utility model increases the side descaling of the steel plate, improves the overall quality of the product, and improves the yield and the economic benefit of the steel.

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 schematic diagram of shot blasting slurry curtain striking in the prior art;

FIG. 2 is a schematic diagram of the acid-free descaling system for strip steel according to the present invention;

FIG. 3 is a schematic view of a side descaling apparatus for steel plates according to the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a flow chart showing the control of the descaling pressure of the steel sheet side descaling apparatus according to the present invention.

Reference numerals: 1-uncoiler; 2-pinch roll; 3-side guide centering; 4-head and tail cutting machine; 5-a scale breaker; 6-steel plate side surface descaling device; 7-acid-free descaling device; 8-surface water film cleaning device; 9-tension pinch device; 10-a coiler; 61-abrasive belt sander; 62-moving the base; 63-fixing the bracket; 64-hydraulic cylinder; 65-guide bar.

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 illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; 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 terms such as "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 an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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 may be understood by those skilled in the art according to specific situations.

Referring to fig. 2 to 5, a strip steel acid-free descaling system includes an uncoiler 1, a pinch roll 2, a head and tail shearing machine 4, a descaler 5, a steel plate side descaling device 6, an acid-free descaling device 7, a surface water film cleaning device 8, a tension pinch device 9, and a coiler 10, which are sequentially arranged along the strip steel rolling direction. Side guide centering devices 3 are arranged between the pinch roll 2 and the head and tail shearing machine 4, between the scale breaker 5 and the steel plate side surface descaling device 6, and between the surface water film cleaning device 8 and the tension pinch device 9.

In this embodiment, the steel plate side descaling device 6 comprises a grinding device, a movable base 62, a fixed support 63 and a control system; polishing devices are arranged on two sides of the strip steel, are fixedly arranged on the movable base 62 and are used for polishing and descaling the side surfaces of the strip steel; the fixed bracket 63 is fixedly provided with a guide rod 65; the movable base 62 is connected with the guide rod 65 in a sliding manner, and the movable base 62 is also provided with a hydraulic cylinder 64 for driving the movable base to slide on the guide rod 65; the grinding device adopts an abrasive belt grinding machine 61, a pressure sensor is mounted on the abrasive belt grinding machine 61 and used for acquiring grinding pressure, a hydraulic cylinder 64 and the pressure sensor are both connected with a control system, and the control system compares a pressure value obtained by the pressure sensor with a set descaling pressure value, so that the grinding device is controlled to be in a position through a movable base 62, and descaling pressure control is realized. The steel plate side descaling device 6 can automatically adjust the width according to the width of the strip steel, ensure the contact and finely adjust the width according to the feedback contact force.

In the embodiment, the steel plate side surface descaling device 6 and the acid-free descaling device 7 are both connected with the same dedusting and demisting system; the scale breaker 5 is a straightening scale breaker 5 or a roller straightener; the surface water film cleaning device 8 comprises a wringing roller, an air knife and/or a dryer.

In the embodiment, at least 1 set of steel plate side descaling devices 6 are arranged in sequence along the rolling direction of the strip steel; the acid-free descaling device 7 is provided with at least 1 set, which are arranged in sequence along the rolling direction of the strip steel.

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

1. The utility model provides a belted steel does not have acid descaling system which characterized in that: the device comprises an uncoiler, pinch rolls, a head and tail shearing machine, a scale breaker, a steel plate side surface descaling device, an acid-free descaling device, a surface water film cleaning device, a tension pinch device and a coiling machine which are sequentially arranged along the rolling direction of strip steel.

2. The strip steel acid-free descaling system according to claim 1, wherein: the steel plate side surface descaling device comprises a grinding device, a movable base, a fixed support and a control system; the polishing device is arranged on the movable base and positioned on the side surface of the strip steel to polish and descale the side surface of the strip steel; the fixed bracket is provided with a guide rod; the movable base is connected with the guide rod in a sliding manner, and a power device for driving the movable base to slide on the guide rod is further arranged on the movable base; the grinding device is provided with a pressure sensor, the power device and the pressure sensor are connected with the control system, and the control system compares a pressure value obtained by the pressure sensor with a set descaling pressure value, so that the grinding device is controlled by moving the base, and descaling pressure control is realized.

3. The strip steel acid-free descaling system according to claim 2, wherein: the number of the grinding devices is at least 2, and the grinding devices are respectively positioned on two sides of the strip steel.

4. The strip steel acid-free descaling system according to claim 1, wherein: and the steel plate side descaling device and the acid-free descaling device are both connected with the same dedusting and demisting system.

5. The strip steel acid-free descaling system according to claim 1, wherein: the scale breaker is a straightening scale breaker or a roller type straightener.

6. The strip steel acid-free descaling system according to claim 1, wherein: at least one set of steel plate side descaling devices are arranged in sequence along the rolling direction of the strip steel.

7. The strip steel acid-free descaling system according to claim 1, wherein: at least one set of acid-free descaling device is arranged in sequence along the rolling direction of the strip steel.

8. The strip steel acid-free descaling system according to claim 1, wherein: the surface water film cleaning device comprises a drying roller, an air knife and/or a dryer.