Wet-process material crushing system

Abstract

The utility model belongs to the technical field of material crushing, and particularly relates to a wet-process material crushing system. The crusher is connected with a feeding pipe, a discharging pipe of the crusher is connected with a sedimentation tank through a first conveying pipeline, the upper part of the sedimentation tank is connected with a screening mechanism through a second conveying pipeline, and the screening mechanism is positioned above a leaching grid of a leacher and is connected with the feeding pipe through a liquid circulating pipeline; the bottom of the sedimentation tank is connected with a feeding pipe through a first crushing circulating pipe. The utility model solves the problems of poor single crushing and precipitation effect and coarse and non-uniform granularity in a wet crushing process, and ensures that the fineness of materials is controllable by arranging the first crushing circulating pipe and the second crushing circulating pipe to perform two cycles; meanwhile, the content of solute in the solvent is greatly increased, so that a large amount of energy consumption can be saved in the subsequent solvent evaporation process, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material crushing technical field, concretely relates to wet method crushed material system. BACKGROUND

[0002] In the existing wet method crushed material process, usually adopt single crushing and sedimentation process, material is directly into the sedimentation tank after crushing and then carries out subsequent treatment. This system has the following problems: first, the crushing effect of the material is not ideal, part of the material is not fully crushed, resulting in low subsequent processing efficiency; second, the material in the sedimentation tank is transported to the leaching device for leaching, the solvent cannot be recovered, the solute content in the solvent at this time is very high, which directly enters the leaching device without recycling, causing the complication of process, wasting resources and energy, but setting a solid-liquid separation device alone wastes the floor space. UTILITY MODEL CONTENTS

[0003] The utility model discloses a wet method crushed material system to solve the problem of poor crushing and sedimentation, coarse and uneven particle size, and not recycling solute in the material from the sedimentation tank, which directly enters the leaching device, causing the complication of process.

[0004] In order to solve the above problems, the technical scheme of the utility model is:

[0005] The wet method crushed material system, comprising a crusher, a feed pipe connected to the crusher, a discharge pipe of the crusher connected to a sedimentation tank through a first transport pipeline, a screening mechanism connected to the sedimentation tank through a second transport pipeline, the screening mechanism located above the leaching grid of the leaching device, the screening mechanism connected to the feed pipe through a liquid circulation pipeline, the bottom of the sedimentation tank connected to the feed pipe through a first crushing circulation pipe, the leaching device provided with a fresh solvent supplement pipeline, the bottom of the leaching device connected to the feed pipe through a leaching solvent discharge pipeline, and a saturated solvent discharge pipeline provided on the liquid circulation pipeline.

[0006] The crushed material is transported to the screening mechanism through the second transport pipeline, the solvent is recovered, and the fine material is transported to the leaching device for leaching.

[0007] Further, the discharge pipe is connected to the feed pipe through a second crushing circulation pipe.

[0008] Further, the discharge pipe, the second crushing circulation pipe, and the first transport pipeline are respectively provided with valves.

[0009] In industrial production, the material after the first crushing is usually transported back to the crusher through the second crushing circulation pipe for re-crushing, the number of circulation crushing is determined according to the actual production condition, and the direct entry into the sedimentation tank for sedimentation will cause the reduction of production efficiency, when the circulation crushing reaches a certain degree, the coarse and fine particles are separated in the sedimentation tank, and the production efficiency is greatly improved.

[0010] Further, the screening mechanism comprises a shell, a sieve plate is arranged in the shell, a partition plate is arranged below the sieve plate, a cavity between the partition plate and the sieve plate is a liquid cavity, and a discharging channel is formed in the bottom of the shell above the sieve plate.

[0011] Further, a liquid circulation pipeline is connected to the bottom of the shell of the liquid cavity.

[0012] Further, a second transportation pipeline is connected to the shell above the sieve plate.

[0013] The solvent in the solid-liquid mixture before the leaching device is separated and re-pumped into the crusher through the liquid circulation pipeline for use, the content of solute in the part of solvent is very high, when the circulation use reaches the saturation of the solvent adsorption (i.e. the content of solute no longer increases), the saturated solvent is output from the saturated solvent extraction pipeline for collection.

[0014] Working principle:

[0015] The solid-liquid mixture enters the crusher from the feeding pipe, is crushed, and is then transported back to the crusher through the discharging pipe and the second crushing circulation pipe for circulation crushing, after several circulation times, the valve on the first transportation pipeline is opened, the material enters the sedimentation tank for separation of coarse particles and fine particles, the coarse particles are settled down and are transported to the crusher through the first crushing circulation pipe for re-crushing, the fine particles and the solvent pass through the second transportation pipeline and the screening mechanism for solid-liquid separation, the solid enters the leaching cell of the leaching device, the solvent is re-pumped into the crusher through the liquid circulation pipeline for use, the content of solute in the part of solvent is relatively high, when the circulation use reaches the saturation of the solvent adsorption, the saturated solvent is output from the saturated solvent extraction pipeline for collection.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1)The utility model discloses a wet crushing process single crushing and the poor sedimentation effect, the problem of uneven size, through setting up first crushing circulation pipe and second crushing circulation pipe, two kinds of circulation are carried out, and the fineness of material is guaranteed controllable.

[0018] (2)The utility model discloses separating the solvent in the solid-liquid mixture before the leaching device through the screening mechanism, and the solvent is punched into the crusher for use again through the liquid circulation pipeline, the content of solute in the part of solvent is higher, when the circulation is used to the saturation of solvent adsorption (namely the content of solute no longer improves), the saturated solvent is output from the pipeline and is collected. The content of solute in the solvent that the leaching device flows is still not high enough (the content of solute should be close to the content of the solute in the raw material that is extracted), so the part of solute is entered into the crusher through the leaching solvent discharge pipeline and participates in the crushing process, and the content of solute in the solvent is continuously improved until the content of solute in the solvent no longer improves, the content of solute in the solvent is greatly improved, the subsequent solvent evaporation or freezing process can save a large amount of energy consumption, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. In the drawings:

[0020] Fig. 1 It is the structure schematic diagram of the utility model wet crushing material system;

[0021] Fig. 2 It is the structure schematic diagram of the utility model screening mechanism;

[0022] In the drawing: 1, crusher;2, sedimentation tank;3, leaching device;4, discharge pipe;5, second crushing circulation pipe;6, first transport pipeline;7, first crushing circulation pipe;8, second transport pipeline;9, screening mechanism;901, screen plate;902, baffle;903, liquid cavity;904, shell;10, liquid circulation pipeline;11, feed pipe;12, saturated solvent pipeline;13, leaching solvent discharge pipeline. DETAILED DESCRIPTION

[0023] The utility model can be understood by the following combining embodiment.

[0024] Example 1

[0025] As Figs. 1-2As shown, the wet grinding material system comprises a grinder 1, the grinder 1 is connected to a feeding pipe 11, the discharge pipe 4 of the grinder 1 is connected to a sedimentation tank 2 through a first conveying pipeline 6, the upper part of the sedimentation tank 2 is connected to a screening mechanism 9 through a second conveying pipeline 8, the screening mechanism 9 is located above the leaching compartment of a leaching device 3, the screening mechanism 9 is connected to the feeding pipe 11 through a liquid circulating pipeline 10, the bottom of the sedimentation tank 2 is connected to the feeding pipe 11 through a first grinding circulating pipeline 7, the leaching device 3 is provided with a fresh solvent supplement pipeline, the bottom of the leaching device 3 is connected to the feeding pipe 11 through a leaching solvent discharge pipeline 13, and the liquid circulating pipeline 10 is provided with a saturated solvent discharge pipeline 12.

[0026] The ground material is in the sedimentation tank 2, the fine material and the solvent are transported to the screening mechanism 9 through the second conveying pipeline 8, the solvent is recovered, the fine material enters the leaching device 3 for leaching, and the coarse material at the bottom of the sedimentation tank 2 is transported back to the grinder 1 through the first grinding circulating pipeline 7 for regrinding.

[0027] It can be understood that the discharge pipe 4 is connected to the feeding pipe 11 through the second grinding circulating pipeline 5.

[0028] It can be understood that the discharge pipe 4, the second grinding circulating pipeline 5 and the first conveying pipeline 6 are respectively provided with valves.

[0029] In industrial production, the material after the first grinding is usually transported back to the grinder 1 through the second grinding circulating pipeline 5 for regrinding, the number of times of the regrinding is determined according to the actual production condition, and the direct entry into the sedimentation tank 2 for sedimentation will cause the production efficiency to be reduced, and when the regrinding reaches a certain degree, the coarse and fine particles are separated into the sedimentation tank 2, so that the production efficiency is greatly improved.

[0030] It can be understood that the screening mechanism 9 comprises a shell 904, an inclined sieve plate 901 is arranged in the shell 904, a partition plate 902 is arranged obliquely below the sieve plate 901, a cavity between the partition plate 902 and the sieve plate 901 is a liquid cavity 903, and a discharging passage is formed in the bottom of the shell 904 obliquely above the sieve plate 901.

[0031] It can be understood that the bottom of the liquid cavity 903 is connected to the liquid circulating pipeline 10.

[0032] It can be understood that the top of the sieve plate 901 is connected to the second conveying pipeline 8.

[0033] It can be understood that the liquid circulating pipeline 10 is provided with the saturated solvent discharge pipeline 12.

[0034] The solvent in the solid-liquid mixture before the leachator 3 is separated and pumped back into the pulverizer 1 through the liquid circulation line 10 for reuse. The solvent in this part has a high solute content. When the solvent is recycled until it is saturated (i.e. the solute content no longer increases), it is discharged and collected from the saturated solvent extraction line 12.

[0035] Working principle:

[0036] The solid-liquid mixture enters the crusher 1 through the feed pipe 11 and is then crushed. It is then transported back to the crusher 1 via the discharge pipe 4 and the second crushing circulation pipe 5 for further crushing. After several cycles, the valve on the first transport pipeline 6 is opened, and the material enters the sedimentation tank 2 for separation of large and small particles. The large particles settle down and are transported back to the crusher 1 through the first crushing circulation pipe 7 for further crushing. The small particles and solvent pass through the second transport pipeline 8 and are separated into solid and liquid components by the screening mechanism 9. The solid enters the leaching compartment in the leaching tank 3, while the solvent is pumped back into the crusher 1 through the liquid circulation pipeline 10 for reuse. This portion of the solvent has a high solute content. When the solvent is recycled until adsorption occurs... After saturation, the solvent is collected from the saturated solvent extraction line 12. Simultaneously, fresh solvent is injected into the leaching chamber through the fresh solvent replenishment line of the leachator 3 to perform countercurrent extraction of the material. After extraction, the solvent still contains an insufficient solute content (the solute content should be close to the content of the solute in the extracted raw material). Therefore, this portion of solute is discharged through the leaching solvent discharge line 13 into the pulverizer 1 to participate in the pulverization process, continuously increasing the solute content in the solvent until the solute content in the solvent no longer increases. Then, it is collected from the saturated solvent extraction line 12 and enters the next stage for solvent evaporation or freezing to obtain the solute (target product).

[0037] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0038] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A wet material grinding system, characterized in that, The equipment includes a pulverizer (1), which is connected to a feed pipe (11). The discharge pipe (4) of the pulverizer (1) is connected to a sedimentation tank (2) via a first transport pipeline (6). The upper part of the sedimentation tank (2) is connected to a screening mechanism (9) via a second transport pipeline (8). The screening mechanism (9) is located above the leaching grid of the leacher (3). The screening mechanism (9) is connected to the feed pipe (11) via a liquid circulation pipeline (10). The bottom of the sedimentation tank (2) is connected to the feed pipe (11) via a first pulverizing circulation pipe (7). The leacher (3) is equipped with a fresh solvent replenishment pipeline. The bottom of the leacher (3) is connected to the feed pipe (11) via a leaching solvent discharge pipeline (13). A saturated solvent extraction pipeline (12) is opened on the liquid circulation pipeline (10).

2. The wet pulverizing material system according to claim 1, characterized in that, The discharge pipe (4) is connected to the feed pipe (11) through the second crushing circulation pipe (5).

3. The wet pulverizing material system according to claim 2, characterized in that, Valves are respectively installed on the discharge pipe (4), the second crushing circulation pipe (5), and the first transport pipeline (6).

4. The wet pulverizing material system according to claim 1, characterized in that, The screening mechanism (9) includes a housing (904), a screen plate (901) is inclinedly arranged inside the housing (904), a partition plate (902) is arranged obliquely below the screen plate (901), the cavity between the partition plate (902) and the screen plate (901) is a liquid cavity (903), and a material discharge channel is opened at the bottom of the housing (904) obliquely above the screen plate (901).

5. The wet grinding system for materials according to claim 4, characterized in that, A liquid circulation pipeline (10) is connected to the bottom shell (904) of the liquid chamber (903).

6. The wet pulverizing material system according to claim 4, characterized in that, The second transport pipeline (8) is connected to the housing (904) above the sieve plate (901).

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