A device for pickling and descaling of hot-rolled coils

By combining electric guide rollers and extrusion rollers with the design of pickling tanks and scrapers, the problem of difficult oxide layer removal is solved, achieving efficient oxide layer removal and cleaning, and improving the processing quality of hot-rolled coils.

CN224487172UActive Publication Date: 2026-07-14HUIZHOU NANGANG METAL SQUASH & EXTEND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU NANGANG METAL SQUASH & EXTEND CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing hot-rolled coil pickling, rust removal, and descaling treatment equipment, the oxide layer is difficult to clean after it cracks, affecting the quality of subsequent processing.

Method used

The steel strip is moved by an electric guide roller, the oxide layer is crushed by the extrusion roller, the oxide layer is scraped off by the scraper, and it is pickled in the pickling tank. The surface of the steel strip is sprayed with acid solution by the acid spraying plate, and the oxide layer is collected in a centralized manner.

Benefits of technology

It achieves efficient removal and cleaning of the oxide layer, improving the quality of subsequent processing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224487172U_ABST
    Figure CN224487172U_ABST
Patent Text Reader

Abstract

The utility model provides a device for hot rolling material pickling rust scale breaking treatment, including main part mechanism, it includes: work board, set up in the both sides of work board top side plate, set up in one side of side plate electric guide roller, set up in one side top of side plate extruding roller, set up in one side of work board top smooth board, set up in one side of side plate top mounting bucket, set up in one side of mounting bucket scrape groove, set up in scrape groove inside scraper, set up in one side of work board guide plate, set up in the bottom of work board collection box and set up in the collection groove inside collection box of collection box inside, the utility model discloses when using, electric guide roller drives steel band to move down, after extruding roller of one side of side plate top extrudes and breaks the oxidation layer on the surface of steel band, after the scraper in the inside of mounting bucket scrapes the oxidation layer on the surface of steel band, falls into the collection groove inside the collection box inside and concentrates collection.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of hot-rolled coil technology, and in particular to a device for pickling, derusting and descaling treatment of hot-rolled coils. Background Technology

[0002] In the steel rolling industry, hot-rolled coils often develop iron oxide scale on their surface due to high-temperature rolling, affecting the quality of subsequent processing. Existing pickling and descaling treatment equipment is based on the principle of combining mechanical descaling and chemical pickling. It physically breaks down the iron oxide scale using a descaling machine, and then uses acid to dissolve the residual oxide layer.

[0003] In existing hot-rolled coil pickling and descaling equipment, the oxide layer that breaks on the surface enters the pickling tank along with the steel strip during the descaling process, making it inconvenient to clean.

[0004] Therefore, a device for pickling, rust removal, and scale breaking treatment of hot-rolled coils is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide an apparatus for pickling, rust removal, and scale breaking treatment of hot-rolled coils, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0006] The technical solution of this utility model embodiment is implemented as follows: A device for pickling, derusting, and scaling treatment of hot-rolled coils includes a main body and a pickling mechanism disposed on one side of the main body. The main body includes: a working plate, side plates disposed on both sides of the top of the working plate, an electric guide roller disposed on one side of the side plate, a squeeze roller disposed on the top of one side of the side plate, a smooth panel disposed on one side of the top of the working plate, a mounting hopper disposed on one side of the top of the side plate, a scraper groove disposed on one side of the mounting hopper, a scraper disposed inside the scraper groove, a guide plate disposed on one side of the working plate, a collection box disposed at the bottom of the working plate, and a collection trough disposed inside the collection box.

[0007] In some embodiments, the pickling mechanism includes a pickling tank disposed on one side of the work plate and a pickling trough disposed inside the pickling tank.

[0008] In some embodiments, a mounting frame is provided on one side of the top of the pickling tank, an acid tank is provided inside the mounting frame, and a storage tank is provided inside the acid tank.

[0009] In some embodiments, the bottom of the acid tank is provided with a liquid outlet pipe, a motor is provided on one side of the liquid outlet pipe, and a liquid guide plate is provided at the output end of the motor.

[0010] In some embodiments, the acid tank is provided with an inlet at the top and an outlet hopper at the bottom of the outlet pipe.

[0011] In some embodiments, a support plate is provided on one side of the top of the pickling tank, and a discharge plate is provided on the other side of the top of the pickling tank.

[0012] In some embodiments, a spray plate is provided on the top of the support plate, and a pump body is provided on the top of the spray plate.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] A device for pickling, derusting, and scaling treatment of hot-rolled coils involves an electric guide roller driving the steel strip downwards during operation. An extrusion roller on one side of the top of the side plate extrudes and breaks off the oxide layer on the surface of the steel strip. Then, a scraper inside the hopper scrapes off the oxide layer on the surface of the steel strip, which then falls into the collection trough inside the collection box for centralized collection.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the main structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the acid tank of this utility model.

[0020] Figure label:

[0021] 100. Main body; 101. Working plate; 102. Side plate; 103. Electric guide roller; 104. Extrusion roller; 105. Smooth panel; 106. Mounting hopper; 107. Scraper groove; 108. Scraper; 109. Guide plate; 110. Collection box; 111. Collection tank; 200. Pickling mechanism; 201. Pickling tank; 202. Pickling vessel; 203. Mounting frame; 204. Acid tank; 205. Storage tank; 206. Inlet; 207. Outlet pipe; 208. Motor; 209. Guide plate; 210. Outlet hopper; 211. Support plate; 212. Spray plate; 213. Pump body; 214. Discharge plate. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] Example:

[0026] like Figure 1-3As shown, an apparatus for pickling, derusting, and scaling treatment of hot-rolled coils includes a main body 100 and a pickling mechanism 200 installed on one side of the main body 100. The main body 100 includes: a working plate 101, side plates 102 installed on both sides of the top of the working plate 101, an electric guide roller 103 rotatably connected to one side of the side plate 102, and a pressing roller 104 rotatably connected to the top of one side of the side plate 102. The electric guide roller 103 drives the steel strip to move downwards, and the pressing roller 104 on the top side of the side plate 101 presses and breaks off the oxide layer on the surface of the steel strip. A smooth panel 105 is installed on the top side of the work plate 101, an installation hopper 106 is installed on the top side of the side plate 102, a scraper groove 107 is opened on one side of the installation hopper 106, a scraper 108 is installed inside the scraper groove 107, a guide plate 109 is installed on one side of the work plate 101, a collection box 110 is installed at the bottom of the work plate 101, and a collection trough 111 is opened inside the collection box 110. After the scraper 108 inside the installation hopper 106 scrapes off the oxide layer on the surface of the steel strip, it falls into the collection trough 111 inside the collection box 110 for centralized collection.

[0027] In this embodiment, the pickling mechanism 200 includes a pickling tank 201 installed on one side of the working plate 101, and a pickling trough 202 opened inside the pickling tank 201. A mounting frame 203 is installed on one side of the top of the pickling tank 201. An acid tank 204 is installed inside the mounting frame 203. A storage tank 205 is opened inside the acid tank 204. An outlet pipe 207 is installed at the bottom of the acid tank 204. A motor 208 is installed on one side of the outlet pipe 207. A guide plate 209 is installed at the output end of the motor 208. An inlet 206 is installed at the top of the acid tank 204. An outlet hopper 210 is installed at the bottom of the outlet pipe 207. After the acid is introduced into the acid tank 204, the guide plate 209 is rotated by the motor 208 to introduce the acid into the pickling tank 201 through the outlet pipe 207 and the outlet hopper 210, which can replenish the acid.

[0028] In this embodiment, a support plate 211 is installed on one side of the top of the pickling tank 201, and a discharge plate 214 is installed on the other side of the top of the pickling tank 201. A spray plate 212 is installed on the top of the support plate 211, and a pump body 213 is installed on the top of the spray plate 212. The pump body 213 draws external acid liquid and sprays it onto the surface of the steel strip through the spray plate 212 for pickling.

[0029] In this embodiment: When in use, the electric guide roller 103 drives the steel strip to move downwards. The extrusion roller 104 on the top side of the side plate 101 extrudes and breaks off the oxide layer on the surface of the steel strip. Then, the scraper 108 inside the mounting bucket 106 scrapes off the oxide layer on the surface of the steel strip and drops it into the collection trough 111 inside the collection box 110 for centralized collection.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An apparatus for pickling, derusting, and scale-removing treatment of hot-rolled coils, comprising a main body (100) and a pickling mechanism (200) disposed on one side of the main body (100), characterized in that: The main structure (100) includes: a working plate (101), side plates (102) disposed on both sides of the top of the working plate (101), an electric guide roller (103) disposed on one side of the side plate (102), an extrusion roller (104) disposed on the top of one side of the side plate (102), a smooth panel (105) disposed on one side of the top of the working plate (101), an installation hopper (106) disposed on one side of the top of the side plate (102), a scraper groove (107) disposed on one side of the installation hopper (106), a scraper (108) disposed inside the scraper groove (107), a guide plate (109) disposed on one side of the working plate (101), a collection box (110) disposed at the bottom of the working plate (101), and a collection trough (111) disposed inside the collection box (110).

2. The apparatus for pickling, derusting, and scaling treatment of hot-rolled coils according to claim 1, characterized in that: The pickling mechanism (200) includes a pickling tank (201) disposed on one side of the working plate (101) and a pickling trough (202) disposed inside the pickling tank (201).

3. The apparatus for pickling, derusting, and scaling treatment of hot-rolled coils according to claim 2, characterized in that: The pickling tank (201) is provided with a mounting frame (203) on one side of the top, and an acid tank (204) is provided inside the mounting frame (203), and a storage tank (205) is provided inside the acid tank (204).

4. The apparatus for pickling, derusting, and scaling treatment of hot-rolled coils according to claim 3, characterized in that: The acid tank (204) is provided with a liquid outlet pipe (207) at the bottom, and a motor (208) is provided on one side of the liquid outlet pipe (207). A liquid guide plate (209) is provided at the output end of the motor (208).

5. The apparatus for pickling, derusting, and scaling treatment of hot-rolled coils according to claim 4, characterized in that: The acid tank (204) is provided with an inlet (206) at the top and an outlet hopper (210) at the bottom of the outlet pipe (207).

6. The apparatus for pickling, derusting, and scaling treatment of hot-rolled coils according to claim 5, characterized in that: A support plate (211) is provided on one side of the top of the pickling tank (201), and a discharge plate (214) is provided on the other side of the top of the pickling tank (201).

7. The apparatus for pickling, derusting, and scaling treatment of hot-rolled coils according to claim 6, characterized in that: A spray plate (212) is provided on the top of the support plate (211), and a pump body (213) is provided on the top of the spray plate (212).