Waste treatment device for concentrated sulfuric acid production

Abstract

The utility model relates to the technical field of chemical engineering, in particular to a waste treatment device for concentrated sulfuric acid production, which comprises a mounting seat, a blanking box, compression rollers, a motor, a gear, an inclined plate and the like, the blanking box for blanking sulfuric-acid residues is connected to the middle of the upper part of the mounting seat, and the compression rollers are rotationally connected to the middle of the mounting seat in a bilateral symmetry manner; a motor is installed on the front side of the installation base, an output shaft of the motor is connected with the right side compression roller, gears are connected to the two compression rollers, the two gears are meshed, and an inclined plate is connected to the middle in the installation base. According to the utility model, the pressed sulfuric-acid slag block mass is guided and conveyed through the inclined plate, meanwhile, the screen holes achieve a screening function, sulfuric-acid slag falling along with the block mass can be screened out, and the sulfuric-acid slag falls onto the material guide plate through the screen holes and then falls into the waste material collecting box to be collected, so that the block mass can be screened, and the block mass pressing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a waste material treatment device for concentrated sulfuric acid production. Background Art

[0002] Concentrated sulfuric acid refers to a sulfuric acid aqueous solution with a mass fraction greater than or equal to 70%, commonly known as bad water. It is a highly corrosive strong mineral acid with a chemical formula of H2SO4. Concentrated sulfuric acid is dehydrating, non-volatile, acidic, hygroscopic and highly oxidizing, and can react with most metals.

[0003] The production of concentrated sulfuric acid is a complex process with multiple steps, involving the selection of raw materials, chemical reactions, and the purification and concentration of products. Commonly used raw materials include sulfur (S) and concentrated nitric acid (HNO3), or sulfur ores such as arsenic pentasulfide or pyrite are selected as starting materials. When pyrite is used to produce concentrated sulfuric acid, some waste materials such as sulfuric acid slag are generated. Since the slag contains iron, it can be used as a raw material for steel metallurgy. In order to effectively utilize and transport the sulfuric acid slag, the sulfuric acid slag is subjected to a ball-pressing process, which mainly involves pressing the sulfuric acid slag into spherical or other shaped lumps through specific processes and equipment. During the ball-pressing process of the sulfuric acid slag, the sulfuric acid slag is pressed into lumps and then transported, and part of the sulfuric acid slag will fall and be transported along with the sulfuric acid slag lumps, that is, there will still be some sulfuric acid slag that has not been ball-pressed, affecting the ball-pressing effect of the sulfuric acid slag. Utility Model Content

[0004] In order to overcome the shortcoming of the existing briquetting machine that part of the unpressed sulfuric acid slag will fall down and be transported together with the lumps during the briquetting process of the sulfuric acid slag, the technical problem is to provide a waste treatment device for concentrated sulfuric acid production that can separate the fallen sulfuric acid slag and the lumps.

[0005] The technical scheme is as follows: A waste treatment device for concentrated sulfuric acid production includes a mounting seat, a feeding box, a pressure roller, a motor, a gear, an inclined plate, a foam pad and a guide plate. The upper middle of the mounting seat is connected to a feeding box for sulfuric acid slag feeding, and the middle of the mounting seat is symmetrically connected to a pressure roller. The two pressure rollers rotate and cooperate to press the sulfuric acid slag into agglomerates. A motor is installed on the front side of the mounting seat, and the motor output shaft is connected to the right pressure roller. Gears are connected to both pressure rollers, and the two gears are meshed. An inclined plate is connected to the middle of the mounting seat, and the inclined plate is set high on the left and low on the right. A foam pad is connected to the inclined plate, and sieve holes are evenly opened on the inclined plate and the foam pad. A guide plate is connected to the right side of the bottom of the inclined plate, and the guide plate is set high on the left and high on the right. After the sulfuric acid slag is pressed into agglomerates by the two pressure rollers, it falls onto the foam pad and moves to the right. The sieve holes screen the sulfuric acid slag agglomerates, and the sulfuric acid slag falls to the guide plate through the sieve holes and moves to the left.

[0006] In one of the embodiments, a waste collection box is also included. A slide groove is opened on the left side of the bottom of the mounting seat. The waste collection box is slidably arranged in the mounting seat through the slide groove, and the sulfuric acid slag slides from the guide plate to the waste collection box for collection.

[0007] In one of the embodiments, it also includes a bracket, a lever and a torsion spring. Two brackets are symmetrically connected to the left and right of the middle part of the mounting seat. The bracket is located above the inclined plate. Ten levers are evenly spaced and rotatably connected to the bracket. A torsion spring is connected between the lever and the bracket. Under the action of the torsion spring, the lever maintains contact with the pressure roller, so that the sulfuric acid slag stuck on the pressure roller can be pushed off.

[0008] In one embodiment, a handle is further included, and the left side of the waste collection box is connected with the handle.

[0009] In one of the embodiments, a cover is also included. A cover is placed on the top of the waste collection box. The length of the cover is smaller than the length of the waste collection box. After the cover is placed on the waste collection box, the right side of the waste collection box has an opening of a certain size, and the sulfuric acid slag on the guide plate can fall into the waste collection box through the opening.

[0010] In one of the embodiments, an observation window is also included. The top of the cover plate is embedded with the observation window, and the observation window is made of transparent material. The amount of sulfuric acid slag inside the waste collection box can be observed through the observation window.

[0011] The beneficial effects are as follows: the utility model guides and conveys the pressed sulfuric acid slag agglomerates through the inclined plate, and at the same time the sieve holes achieve a screening function, and can screen out the sulfuric acid slag that falls with the agglomerates. The sulfuric acid slag falls onto the guide plate through the sieve holes, and then falls into the waste collection box for collection, so that the agglomerates can be screened and the pressing quality of the agglomerates can be improved; the torsion spring keeps the lever in contact with the pressing roller, and can push off the sulfuric acid slag and agglomerates stuck to the pressing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the inclined plate, sieve holes and material guide plate of the utility model.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the mounting seat, pressure roller and brush of the utility model.

[0015] Figure 4 The utility model is a schematic diagram of the connection structure of the bracket, the lever and the torsion spring.

[0016] Markings in the figure are: 1-mounting seat, 2-feeding box, 3-pressing roller, 301-motor, 302-gear, 4-inclined plate, 5-sieve hole, 6-foam pad, 7-guide plate, 8-chute, 9-waste collection box, 10-bracket, 11-lever, 12-torsion spring, 13-handle, 14-cover plate, 15-observation window. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0018] Embodiment: A waste treatment device for concentrated sulfuric acid production, such as Figure 1 and Figure 2 As shown, it includes a mounting seat 1, a material box 2, a pressure roller 3, a motor 301, a gear 302, an inclined plate 4, a foam pad 6 and a guide plate 7. The upper middle of the mounting seat 1 is connected with a material box 2 for discharging sulfuric acid slag. The middle of the mounting seat 1 is symmetrically connected with a pressure roller 3. The two pressure rollers 3 rotate and cooperate to press the sulfuric acid slag into agglomerates. The front side of the mounting seat 1 is installed with a motor 301 by bolts. The output shaft of the motor 301 is connected to the right pressure roller 3. Both pressure rollers 3 are connected with Gear 302, two gears 302 are meshed, an inclined plate 4 is connected to the middle part of the mounting seat 1, the inclined plate 4 is set to be higher on the left and lower on the right, a foam pad 6 is connected to the inclined plate 4, sieve holes 5 are evenly opened on the inclined plate 4 and the foam pad 6, a guide plate 7 is connected to the right side of the bottom of the inclined plate 4, the guide plate 7 is set to be higher on the right and lower on the left, the sulfuric acid slag is pressed into a mass by the two pressing rollers 3, and then falls onto the foam pad 6 and moves to the right, the sieve holes 5 screen the sulfuric acid slag mass, and the sulfuric acid slag falls to the guide plate 7 through the sieve holes 5 and moves to the left.

[0019] like Figure 1 and Figure 2 As shown, it also includes a waste collection box 9, a handle 13, a cover plate 14 and an observation window 15. A slide groove 8 is opened on the left side of the bottom of the mounting seat 1. The waste collection box 9 is slidably arranged in the mounting seat 1 through the slide groove 8. The sulfuric acid slag slides from the guide plate 7 to the waste collection box 9 for collection. The handle 13 is connected to the left side of the waste collection box 9. A cover plate 14 is placed on the top of the waste collection box 9. The length of the cover plate 14 is smaller than the length of the waste collection box 9. After the cover plate 14 is covered on the waste collection box 9, the right part of the waste collection box 9 has an opening of a certain size. The sulfuric acid slag on the guide plate 7 can fall into the waste collection box 9 through this opening. An observation window 15 is embedded and connected to the top of the cover plate 14. The observation window 15 uses a transparent material. The amount of sulfuric acid slag inside the waste collection box 9 can be observed through the observation window 15.

[0020] like Figure 3 and Figure 4As shown, it also includes a bracket 10, a lever 11 and a torsion spring 12. Two brackets 10 are symmetrically connected to the left and right of the middle part of the mounting seat 1. The bracket 10 is located above the inclined plate 4. Ten levers 11 are evenly spaced and rotatably connected to the bracket 10. A torsion spring 12 is connected between the lever 11 and the bracket 10. Under the action of the torsion spring 12, the lever 11 maintains contact with the pressure roller 3, and can push off the sulfuric acid slag stuck on the pressure roller 3.

[0021] The starting motor 301 drives the right pressing roller 3 to rotate counterclockwise, and drives the left pressing roller 3 to rotate clockwise through the gear 302, and pours the sulfuric acid slag into the lower hopper. The sulfuric acid slag falls between the two pressing rollers 3 through the lower hopper, and is pressed into agglomerates under the rotation cooperation of the two pressing rollers 3. The agglomerates fall downward onto the inclined plate 4, and the foam pad 6 can buffer the agglomerates. The agglomerates slide rightward along the inclined surface of the inclined plate 4 to the conveyor belt or the collection container, and when the agglomerates fall, they are accompanied by some unpressed sulfuric acid slag, and the sulfuric acid slag falls onto the guide plate 7 through the sieve hole 5 and moves along the guide plate 7. The sulphuric acid slag is collected in the waste collecting box 9 by the inclined surface of the guide plate 7. At the same time, under the action of the torsion spring 12, the lever 11 can keep in contact with the pressure roller 3, so that the sulphuric acid slag and lumps adhering to the pressure roller 3 can be pushed off. The staff can observe the amount of sulphuric acid slag collected in the waste collecting box 9 through the observation window 15. When the sulphuric acid slag in the waste collecting box 9 needs to be processed, the waste collecting box 9 is pulled to the left by the handle 13, and the waste collecting box 9 is taken out from the mounting seat 1. Then the sulphuric acid slag can be processed, and then the waste collecting box 9 is put back into the mounting seat 1.

[0022] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A waste treatment device for concentrated sulfuric acid production, comprising a mounting seat (1), a material box (2), a pressure roller (3), a motor (301) and a gear (302), wherein a material box (2) for discharging sulfuric acid slag is connected to the middle of the upper part of the mounting seat (1), a pressure roller (3) is symmetrically rotatably connected to the middle part of the mounting seat (1), and the two pressure rollers (3) rotate in coordination to press the sulfuric acid slag into agglomerates, a motor (301) is mounted on the mounting seat (1), an output shaft of the motor (301) is connected to one of the pressure rollers (3), and the two pressure rollers (3) are both connected to gears (302), and the two gears (302) are meshed, characterized in that: The invention also comprises an inclined plate (4), a foam pad (6) and a material guide plate (7); the middle part of the mounting seat (1) is connected to the inclined plate (4); the foam pad (6) is connected to the inclined plate (4); sieve holes (5) are evenly formed on the inclined plate (4) and the foam pad (6); and the bottom of the inclined plate (4) is connected to the material guide plate (7).

2. A waste treatment device for concentrated sulfuric acid production according to claim 1, characterized in that: It also includes a waste collection box (9), a slide groove (8) is provided at the bottom of the mounting seat (1), and the waste collection box (9) is slidably arranged in the mounting seat (1) through the slide groove (8).

3. A waste treatment device for concentrated sulfuric acid production according to claim 1, characterized in that: The invention also comprises a bracket (10), a lever (11) and a torsion spring (12); the bracket (10) is connected to the middle part of the mounting seat (1); the bracket (10) is located above the inclined plate (4); at least three levers (11) are rotatably connected to the bracket (10) at even intervals; a torsion spring (12) is connected between the lever (11) and the bracket (10); under the action of the torsion spring (12), the lever (11) keeps in contact with the pressure roller (3).

4. A waste treatment device for concentrated sulfuric acid production according to claim 2, characterized in that: It also includes a handle (13), and the handle (13) is connected to the waste collection box (9).

5. A waste treatment device for concentrated sulfuric acid production according to claim 2, characterized in that: The waste collection box (9) also includes a cover plate (14), which is placed on the top of the waste collection box (9).

6. A waste treatment device for concentrated sulfuric acid production according to claim 5, characterized in that: It also includes an observation window (15), and the top of the cover plate (14) is embedded with the observation window (15).

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