A kind of sulphur concentrate acid production line on slag belt conveyor scraper mechanism

Abstract

A kind of sulphur concentrate acid production line on slag belt conveyor's scraper mechanism, including scraper body, two sides of scraper body are symmetrically provided with chute hole a;Scraper auxiliary fixing piece, number is four, scraper auxiliary fixing piece is the hard stainless steel piece with the hole in the middle being adapted to chute hole a;Each chute hole a11 Two sides are pasted with a pair of scraper auxiliary fixing piece;Scraper installation connecting piece, it is a pair of L-shaped steel plate, the upper side of L-shaped steel plate is equipped with scraper installation hole b, scraper installation hole b is detachably connected with the chute hole a of scraper auxiliary fixing piece by bolt, the lower part of L-shaped steel plate is welded on the end cover flange of the support or driving wheel / driven wheel at slag belt conveyor discharge port.This utility model has the advantages that:1, accurately clean the slag in belt groove;2, extend the service life of belt;3, reduce maintenance cost, without frequently replacing belt;4, installation adjustment is convenient, adapt to different degree of wear belt.

Description

Technical Field

[0001] This utility model relates to the technical field of sulfuric acid production equipment, specifically to a scraper mechanism of a slag belt conveyor on a sulfuric acid production line. Background Technology

[0002] In the sulfuric acid production process using sulfur concentrate, high-temperature slag needs to be cooled and humidified by rollers before being transported to the slag warehouse via a belt conveyor. Currently, most belt conveyors use rubber belts, which, with prolonged contact with the slag, cause continuous wear on the working surface. Typically, after two years of operation, a groove 300-400mm wide and 2-5mm deep will form in the core area of ​​the belt where it contacts the slag.

[0003] This groove causes existing general-purpose belt cleaners to malfunction: These cleaners have a full-coverage structure, with their scrapers fitting against the non-wearing area (flat surface) of the belt, but they cannot reach into the groove. This results in residual slag inside the groove remaining and spilling down the conveyor belt. This leakage not only increases the workload for workers but also accelerates wear on the belt edges. To resolve this leakage, the current solution is to replace the belt with a completely new one, costing approximately 12,000-15,000 RMB per B650mm belt, and requiring a 4-6 hour downtime, severely impacting production continuity.

[0004] In the current technology, there is no dedicated anti-leakage device for "localized material leakage in the grooves of the tape": either a full-coverage cleaner is used (which cannot be adapted to the grooves), or the tape is thickened to enhance wear resistance (which is costly and has limited effectiveness). Neither of these solutions addresses the leakage problem from the perspective of "targeted cleaning of the groove area", resulting in high maintenance costs and poor applicability. Utility Model Content

[0005] To address the material leakage problem caused by grooves formed on the belt of existing sulfur concentrate slag conveyor, a material leakage prevention scraper device is provided. This device achieves the following: precise cleaning of slag in the belt grooves; extended belt service life; reduced maintenance costs (no need for frequent belt replacement, materials can be made from recycled belts); convenient installation and adjustment; and adaptability to belts with different wear levels.

[0006] A scraper mechanism for a slag belt conveyor in a sulfuric acid production line includes a scraper body 1, which is a sheet structure. Its width is adapted to the width of the groove 21 formed by the wear of the belt 2 of the slag belt conveyor. A sliding groove hole a11 is symmetrically provided on the upper part of both sides of the scraper body 1.

[0007] The scraper auxiliary fixing piece 3 has four pieces. The scraper auxiliary fixing piece 3 is a hard stainless steel sheet with a hole in the middle that matches the sliding groove hole a11. A pair of scraper auxiliary fixing pieces 3 are attached to both sides of each sliding groove hole a11.

[0008] The scraper mounting connector 4 is a pair of L-shaped steel plates. The upper side of the L-shaped steel plate is provided with a scraper mounting hole b41. The scraper mounting hole b41 is detachably connected to the sliding groove hole a11 of the scraper auxiliary fixing plate 3 by bolts 42. The lower part of the L-shaped steel plate is welded to the bracket or the end cover flange of the drive wheel / driven wheel at the discharge port of the slag belt conveyor.

[0009] The bottom working surface of the scraper body 1 is in contact with the surface of the groove 21 of the tape 2, and the contact gap is adjusted by the sliding of the bolt 42 in the slide hole a11.

[0010] Preferably, the width of the scraper body 1 is 300-400mm and the thickness is 8-12mm.

[0011] Preferably, the length of the groove hole a11 is 20-30mm and the width is 8-10mm.

[0012] Preferably, the scraper body 1 is a waste or surplus conveyor belt that was replaced on the slag conveyor belt of the sulfur concentrate acid production line.

[0013] Preferably, the bottom working surface of the scraper body 1 is coated with a wear-resistant coating with a thickness of 2-3mm, and the wear-resistant coating is made of polyurethane or nitrile rubber.

[0014] Preferably, the outer side of the bolt 42 is fitted with an anti-loosening nut for locking the position of the scraper body 1 after adjustment, and the anti-loosening nut is in contact with the surface of the scraper auxiliary fixing piece 3.

[0015] The advantages of this utility model are:

[0016] 1. Precise cleaning of slag in the grooves of the conveyor belt reduces material leakage;

[0017] 2. Extend the service life of the tape from 2 years to 3.5-4 years;

[0018] 3. Reduce maintenance costs; no need to frequently replace tape; materials can be made from waste tape or leftover tape.

[0019] 4. Easy to install and adjust, and adaptable to tapes with different wear levels. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 A schematic diagram of the scraper body and the scraper mounting connector.

[0022] Figure 3 This is a schematic diagram of the scraper body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] As shown in the attached figure, a scraper mechanism for a slag belt conveyor in a sulfuric acid production line includes a scraper body 1, which is a sheet structure. Its width is adapted to the width of the groove 21 formed by the wear of the belt 2 of the slag belt conveyor. A sliding groove hole a11 is symmetrically provided on the upper part of both sides of the scraper body 1.

[0029] The scraper auxiliary fixing piece 3 has four pieces. The scraper auxiliary fixing piece 3 is a hard stainless steel sheet with a hole in the middle that matches the sliding groove hole a11. A pair of scraper auxiliary fixing pieces 3 are attached to both sides of each sliding groove hole a11.

[0030] The scraper mounting connector 4 is a pair of L-shaped steel plates. The upper side of the L-shaped steel plate is provided with a scraper mounting hole b41. The scraper mounting hole b41 is detachably connected to the sliding groove hole a11 of the scraper auxiliary fixing plate 3 by bolts 42. The lower part of the L-shaped steel plate is welded to the bracket or the end cover flange of the drive wheel / driven wheel at the discharge port of the slag belt conveyor to adapt to different on-site installation environments.

[0031] The bottom working surface of the scraper body 1 is in contact with the surface of the groove 21 of the tape 2, and the contact gap is adjusted by the sliding of the bolt 42 in the slide hole a11.

[0032] In another technical solution, the width of the scraper body 1 is 300-400mm and the thickness is 8-12mm.

[0033] In another technical solution, the length of the sliding hole a11 is 20-30mm and the width is 8-10mm.

[0034] In another technical solution, the scraper body 1 is a waste or surplus conveyor belt that is replaced on the slag conveyor belt of the sulfuric acid production line.

[0035] In another technical solution, the bottom working surface of the scraper body 1 is coated with a 2-3mm thick wear-resistant coating, which is made of polyurethane or nitrile rubber. This enhances wear resistance and prevents hard contact from scratching the tape.

[0036] In another technical solution, an anti-loosening nut for locking the adjusted position of the scraper body 1 is sleeved on the outside of the bolt 42, and the anti-loosening nut is in contact with the surface of the scraper auxiliary fixing piece 3.

[0037] Working principle: Measure the actual width of the tape groove on-site, cut a scraper body of suitable width using waste tape, and apply a wear-resistant coating; attach four scraper auxiliary fixing pieces to both sides of the scraper body, and weld the mounting connectors to the conveyor bracket or the end cover flange of the drive / driven wheel; connect the scraper body to the scraper mounting holes b on the L-shaped steel plate by passing bolts through the groove hole a and the scraper auxiliary fixing pieces on both sides; adjust the bolt position so that the gap between the scraper body and the tape groove surface is 0.8mm, and tighten the anti-loosening nut to lock it; start the conveyor for trial operation and observe the leakage. If there is still a small amount of leakage, slightly adjust the position of the fine-tuning bolt in the groove hole downwards until the leakage is completely cleared.

[0038] The above-described embodiments are only intended to illustrate the technical solution and features of this utility model, and are intended to enable those skilled in the art to implement them. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model are within the scope of protection of this utility model. Anything not described in detail is prior art.

Claims

1. A scraper mechanism for a slag belt conveyor in a sulfuric acid production line, characterized in that, include The scraper body (1) is a sheet structure, and its width is adapted to the width of the groove (21) formed by the wear of the belt (2) of the slag conveyor. A groove hole a (11) is symmetrically provided on the upper part of both sides of the scraper body (1). The scraper auxiliary fixing piece (3) has four pieces. The scraper auxiliary fixing piece (3) is a hard stainless steel sheet with a hole in the middle that matches the groove hole a (11). A pair of scraper auxiliary fixing pieces (3) are attached to both sides of each groove hole a (11). The scraper mounting connector (4) is a pair of L-shaped steel plates. The upper side of the L-shaped steel plate is provided with a scraper mounting hole b (41). The scraper mounting hole b (41) is detachably connected to the sliding groove hole a (11) of the scraper auxiliary fixing plate (3) by bolts (42). The lower part of the L-shaped steel plate is welded to the bracket at the discharge port of the slag belt conveyor or the end cover flange of the drive wheel / driven wheel. The bottom working surface of the scraper body (1) is attached to the surface of the groove (21) of the tape (2), and the attachment gap is adjusted by the bolt (42) sliding in the slide hole a (11).

2. The scraper mechanism of the slag belt conveyor in a sulfuric acid production line according to claim 1, characterized in that, The width of the scraper body (1) is 300-400mm and the thickness is 8-12mm.

3. The scraper mechanism of the slag belt conveyor in a sulfuric acid production line according to claim 1, characterized in that, The length of the groove hole a(11) is 20-30mm and the width is 8-10mm.

4. The scraper mechanism of the slag belt conveyor in a sulfuric acid production line according to claim 1, characterized in that, The scraper body (1) is a waste or surplus conveyor belt that was replaced on the slag conveyor belt of the sulfuric acid production line.

5. The scraper mechanism of the slag belt conveyor in a sulfuric acid production line according to claim 4, characterized in that, The bottom working surface of the scraper body (1) is coated with a wear-resistant coating with a thickness of 2-3mm, which is made of polyurethane or nitrile rubber.

6. The scraper mechanism of the slag belt conveyor in a sulfuric acid production line according to claim 1, characterized in that, The bolt (42) is fitted with an anti-loosening nut on the outside of the screw for locking the position of the scraper body (1) after adjustment. The anti-loosening nut is in contact with the surface of the scraper auxiliary fixing piece (3).

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