Solid-liquid separation device for washing zinc-indium gypsum residues

Abstract

The utility model discloses a solid-liquid separation device for washing zinc-indium gypsum slag, which comprises a vacuum belt filter, a gas-liquid separator, a washing liquid storage tank, a gypsum dry material collecting device and a stirring barrel for mixing zinc-indium gypsum and acid, a discharge port of the stirring barrel is connected with a feed end of the vacuum belt filter, and a discharge port of the stirring barrel is connected with a discharge port of the gas-liquid separator. A liquid outlet of the vacuum belt filter is connected with the gas-liquid separator, a discharge port of the vacuum belt filter is connected with the dry gypsum collecting device, a liquid outlet of the gas-liquid separator is connected with the washing liquid storage tank, and a gas outlet of the gas-liquid separator is connected with the stirring barrel through the air compressor. And the washing liquid storage tank is connected with the stirring barrel through a circulating pump. By integrating washing and solid-liquid separation, not only is the washing efficiency improved, but also the solid-liquid separation can be quickly carried out on the gypsum slag, the washing efficiency is high, the separation effect is good, the production efficiency can be effectively improved, the cost is reduced, and efficient solid-liquid separation equipment is provided for reutilization of the zinc-indium gypsum slag.

Description

Technical Field

[0001] The utility model belongs to the technical field of zinc-indium gypsum recycling, and specifically relates to a solid-liquid separation device for washing zinc-indium gypsum slag. Background Art

[0002] In the production process of hydrometallurgy of zinc and indium, system acid balance is a prerequisite for the smooth progress of hydrometallurgy, and is also an important part of technical management. In order to maintain system acid balance or comprehensively recover rare metals such as indium and germanium, lime neutralization is usually used to treat hot acid leaching solution rich in valuable metal elements such as zinc, indium, and germanium, which will produce a large amount of gypsum slag, which is usually called "zinc-indium gypsum". When the zinc-indium gypsum slag is reasonably reused, washing the zinc-indium gypsum slag is an important part of recycling. At present, washing mainly uses traditional stirring washing equipment, which has low washing efficiency, long cleaning cycle, and cumbersome operation, affecting production efficiency.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a solid-liquid separation device for washing zinc-indium gypsum slag.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A solid-liquid separation device for washing zinc-indium gypsum slag comprises a vacuum belt filter, a gas-liquid separator, a washing liquid storage tank, a gypsum dry material collecting device, and a stirring barrel for mixing zinc-indium gypsum and acid, wherein the material discharge port of the stirring barrel is connected to the feeding end of the vacuum belt filter, the liquid outlet of the vacuum belt filter is connected to the gas-liquid separator, the material discharge port of the vacuum belt filter is connected to the gypsum dry material collecting device, the liquid outlet of the gas-liquid separator is connected to the washing liquid storage tank, the gas outlet of the gas-liquid separator is connected to the stirring barrel via an air compressor, and the washing liquid storage tank is connected to the stirring barrel via a circulating pump.

[0007] Furthermore, the stirring barrel is connected to the feeding end of the vacuum belt filter through a gypsum feeding port, the washing liquid storage tank is connected to the stirring barrel through an acid circulation pipe, and a circulation pump is connected in series to the acid circulation pipe.

[0008] Furthermore, it also includes a steam generating device and a hot air hood blowing device, wherein the air outlet of the steam generating device is connected to the hot air hood blowing device, and the hot air hood blowing device is buckled above the end of the vacuum belt filter.

[0009] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0010] The utility model is provided with a stirring washing and solid-liquid separation structure, which is suitable for the pickling operation of zinc-indium gypsum, and the washing liquid is reused. By integrating washing and solid-liquid separation, not only the washing efficiency is improved, but also the solid-liquid separation of gypsum slag can be quickly performed. The washing efficiency is high and the separation effect is good, which can effectively improve the production efficiency and reduce the cost, and provide an efficient solid-liquid separation device for the reuse of zinc-indium gypsum slag.

[0011] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0013] Figure 1 It is a schematic diagram of the structural connection of the utility model.

[0014] In the figure: 1-mixing barrel; 2-gypsum feeding port; 3-vacuum belt filter; 4-gas-liquid separator; 5-air compressor; 6-washing liquid storage tank; 7-circulation pump; 8-flushing pipe; 9-steam generating device; 10-hot air hood blowing device; 11-acid circulation pipe; 12-gypsum feeding device; 13-gypsum dry material collecting device.

[0015] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0019] like Figure 1 As shown, a solid-liquid separation device for washing zinc-indium gypsum slag described in this embodiment includes a mixing barrel 1, a vacuum belt filter 3, a gypsum feed port 2, a hot air hood blowing device 10, a hot air hood blowing device 9, a gas-liquid separator 4, and a washing liquid storage tank 6. The gypsum feed port 2 is located at the upper part of the vacuum belt filter 3, and the upper end of the gypsum feed port 2 is connected to the mixing barrel 1. The top of the mixing barrel 1 is connected to the acid circulation pipe 11 and the gypsum feed device 12. A hot air hood blowing device 10 is provided at the upper part of the tail end of the vacuum belt filter 3, and the hot air hood blowing device 10 is connected to the steam generating device 9, which provides hot air; the liquid outlet of the vacuum belt filter 3 is connected to the gas-liquid separator 4, and the material outlet of the vacuum belt filter 3 is connected to the gypsum dry material collecting device 13. The gas outlet of the gas-liquid separator 4 is connected to the air compressor 5, and the air compressor 5 is connected to the gas-liquid separator 4 at one end and the mixing barrel 1 at the other end. The liquid outlet of the gas-liquid separator 4 is connected to the washing liquid storage tank 6, and the washing liquid storage tank 6 is connected to the mixing barrel 1 by an acid liquid circulation pipe 11, and a washing liquid circulation pump 7 is arranged in series on the acid liquid circulation pipe 11. Preferably, a flushing pipe 8 is arranged on the acid liquid circulation pipe 11. The flushing pipe 8 is used for temporary cleaning of the gypsum dry material collection device 13 and can be closed during normal operation.

[0020] During operation, the zinc-indium gypsum to be washed is fed into the mixing barrel 1 through the gypsum feeding device 12. In the mixing barrel 1, the gypsum and the acid washing liquid are fully stirred and washed. The washed gypsum is fed into the vacuum belt filter 3 through the gypsum feeding port 2 for vacuum filtration. The hot air hood blowing device 10 on the upper part of the vacuum belt filter 3 can accelerate the filtration efficiency and improve the drying effect. After filtration, the washing liquid is collected into the gas-liquid separator 4 through the pipeline. After gas-liquid separation, the washing liquid is stored in the washing liquid storage tank 6. The washing liquid in the washing liquid storage tank 6 is circulated to the mixing barrel 1 through the circulation pump 7 and the acid circulation pipe 11, and is recycled again. The filtered and dried gypsum is unloaded into the gypsum dry material collection device 13 through a scraper. The gas separated by the gas-liquid separator 4 returns to the mixing barrel 1, which is conducive to the full washing and stirring of the mixing barrel 1.

[0021] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A solid-liquid separation device for washing zinc-indium gypsum slag, characterized in that: The invention comprises a vacuum belt filter (3), a gas-liquid separator (4), a washing liquid storage tank (6), a gypsum dry material collecting device (13), and a stirring barrel (1) for mixing zinc-indium gypsum and acid, wherein the discharge port of the stirring barrel (1) is connected to the feed end of the vacuum belt filter (3), the liquid discharge port of the vacuum belt filter (3) is connected to the gas-liquid separator (4), the discharge port of the vacuum belt filter (3) is connected to the gypsum dry material collecting device (13), the liquid discharge port of the gas-liquid separator (4) is connected to the washing liquid storage tank (6), the gas outlet of the gas-liquid separator (4) is connected to the stirring barrel (1) via an air compressor (5), and the washing liquid storage tank (6) is connected to the stirring barrel (1) via a circulation pump (7).

2. A solid-liquid separation device for washing zinc-indium gypsum slag according to claim 1, characterized in that: The stirring barrel (1) is connected to the feeding end of the vacuum belt filter (3) via the gypsum feeding port (2), the washing liquid storage tank (6) is connected to the stirring barrel (1) via the acid liquid circulation pipe (11), and the circulation pump (7) is connected in series to the acid liquid circulation pipe (11).

3. A solid-liquid separation device for washing zinc-indium gypsum slag according to claim 1, characterized in that: It also comprises a steam generating device (9) and a hot air hood blowing device (10), wherein the air outlet of the steam generating device (9) is connected to the hot air hood blowing device (10), and the hot air hood blowing device (10) is buckled above the end of the vacuum belt filter (3).

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