Electrolytic manganese production crystalline double salt crushing device

Abstract

The utility model provides a kind of electrolytic manganese production crystallization complex salt crushing device, it is related to crushing device technical field, the device includes crushing jar, crushing drive mechanism, blade crushing mechanism and grinding crushing mechanism;Crushing drive mechanism includes inner shaft body, outer shaft body and drive motor, inner shaft body rotation is set in outer shaft body, and inner, outer shaft body top is equipped with first driven gear, second driven gear respectively, blade crushing mechanism includes first crushing disc and second crushing disc, and first crushing disc and second crushing disc are equipped with multiple crushing blades respectively;Grinding crushing mechanism includes upper grinding disc and lower grinding disc.The utility model has the beneficial effect that: the blade crushing mechanism of the device can make the crushing blade on first crushing disc and second crushing disc rotate with opposite rotational direction, and large block crystallization complex salt is preliminarily crushed into small particle;Small particle is ground and crushed to electrolytic manganese crystalline powder by upper grinding disc and lower grinding disc, so that electrolytic manganese crystallization complex salt crushing granularity meets the requirement.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, specifically a crushing equipment for producing crystallized double salts from electrolytic manganese. Background Technology

[0002] Currently, the production of electrolytic manganese metal both domestically and internationally adopts a hydrometallurgical process and electrolytic purification. Rhodochrosite or manganese monoxide is used as raw material, which reacts with sulfuric acid to obtain a manganese sulfate solution. Ammonia is used as a neutralizing agent, and after impurity removal and solid-liquid separation, a mixed solution of manganese sulfate and ammonium sulfate is obtained. Electrolytic manganese metal product is obtained by electrolyzing this mixed solution.

[0003] Because manganese ore generally contains impurities such as calcium and magnesium, during the production process, these impurity ions react with sulfuric acid in the acid leaching stage, enter the solution, and continuously accumulate. After reaching a certain concentration, they form a saturated solution. Affected by temperature fluctuations, a large amount of MgSO4-MnSO4-(NH4)2SO4 double salt crystals precipitate out in pipe joints and equipment containers. Especially when using manganese ore with high calcium and magnesium content, the precipitation of double salt crystals is further aggravated. In order to ensure normal production, after the above-mentioned double salt crystals precipitate, the equipment and pipelines need to be cleaned in time. The cleaned-out double salt crystals are disposed of as waste for a long time, resulting in serious loss of valuable components such as manganese, ammonium, and sulfur, and easily polluting the external environment.

[0004] Currently, the main technology for resource utilization of crystalline complex salts generated during electrolytic manganese production is the recovery of manganese, ammonium, and sulfur. Since the crystalline complex salts precipitate out as irregular lumps or granules, crushing is necessary to improve resource recovery efficiency. Because crystalline complex salts contain large amounts of free water and water of crystallization, their crystal morphology and physical properties are extremely uneven. Existing crushing devices mostly use single-blade crushing or single-grinding disc structures. Blade crushing easily leaves large particles, and single-blade crushing produces products with relatively large particle sizes, making it difficult to directly meet the particle size requirements for subsequent resource utilization. Grinding disc crushing devices have poor adaptability to crystalline complex salts with large initial particle sizes and cannot directly crush them. To promote the resource utilization of crystalline complex salts generated during electrolytic manganese production, a high-efficiency crushing device for electrolytic manganese crystalline complex salts is urgently needed. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an electrolytic manganese crystallization complex salt crushing device. The crushing drive mechanism of this crushing device can simultaneously drive the blade crushing mechanism and the grinding crushing mechanism to operate. The crushing mechanism and the grinding crushing mechanism can realize the graded crushing of electrolytic manganese crystallization complex salt, so that the crushed particle size of electrolytic manganese crystallization complex salt meets the requirements. The crushing device has a simple drive structure, stable operation, and can ensure that the crushing process is continuous and has high crushing efficiency.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an electrolytic manganese production crystallization complex salt crushing device, comprising a crushing tank, a crushing drive mechanism, a blade crushing mechanism and a grinding crushing mechanism; The crushing tank has a rotating mounting hole and a feed inlet at the top, and a discharge outlet at the bottom. A screen plate and a guide funnel are fixedly installed inside the crushing tank; the screen plate has screen holes. The crushing drive mechanism includes an inner shaft, an outer shaft, and a drive motor. The inner shaft is rotatably disposed within the outer shaft, and the outer shaft is rotatably disposed within the rotating mounting hole. A first driven gear is fixedly disposed on the top of the inner shaft, and a second driven gear is fixedly disposed on the top of the outer shaft. The first driven gear is located above the second driven gear. A drive gear is fixedly disposed at the end of the output shaft of the drive motor, and the drive gear meshes with both the first and second driven gears simultaneously. The blade crushing mechanism includes a first crushing disc and a second crushing disc, which are respectively fixed on the inner shaft and the lower end of the outer shaft. Multiple crushing blades are provided on the first and second crushing discs. The grinding and crushing mechanism includes an upper grinding disc and a lower grinding disc. The upper grinding disc is fixed below the material guide funnel, and the lower grinding disc is located below the upper grinding disc. The upper grinding disc has a material guide hole in the middle. The lower end of the inner shaft passes through the material guide hole and is fixedly connected to the lower grinding disc. There is a grinding gap between the upper grinding disc and the lower grinding disc, and the grinding gap communicates with the material guide hole.

[0007] Furthermore, the grinding gap is conical in shape, and its thickness gradually decreases as it extends outward from the center.

[0008] Furthermore, the upper surface of the upper grinding disc is provided with a guide cone surface.

[0009] Furthermore, a feed baffle is fixedly provided above the upper grinding disc.

[0010] Furthermore, the upper grinding disc sidewall is provided with multiple fixed connecting rods, one end of which is fixedly connected to the upper grinding disc, and the other end of which is fixedly connected to the inner wall of the crushing tank.

[0011] Furthermore, the bottom of the material guide funnel is provided with a discharge hole, and a limiting sleeve is provided in the middle of the discharge hole. The outer wall of the limiting sleeve is connected to the material guide funnel through a connecting rod, and the inner shaft is rotatably limited within the limiting sleeve.

[0012] Furthermore, the upper surface of the lower grinding disc is provided with a crushing bar, and the crushing bar is provided with a crushing inclined surface.

[0013] Furthermore, the top opening of the crushing tank is also provided with a fixed cover, and the rotating mounting hole and the feed inlet are both located on the fixed cover.

[0014] Furthermore, a protective cover is also fixedly provided on the top of the fixed cover, and the second driven gear, the first driven gear, and the drive gear are all located inside the protective cover.

[0015] Furthermore, the crushing blades are arranged at an angle relative to the horizontal plane.

[0016] The beneficial effects of the electrolytic manganese production crystallization complex salt crushing device provided by this utility model are as follows: (1) The crushing device includes a crushing tank, a crushing drive mechanism, a blade crushing mechanism and a grinding crushing mechanism; the crushing drive mechanism includes an inner shaft, an outer shaft and a drive motor, the inner shaft is rotatably disposed in the outer shaft, a first driven gear is fixedly disposed at the top of the inner shaft, and a second driven gear is fixedly disposed at the top of the outer shaft; the blade crushing mechanism includes a first crushing disc and a second crushing disc, the first crushing disc and the second crushing disc are respectively fixed on the inner shaft and the lower end of the outer shaft, and multiple crushing blades are respectively disposed on the first crushing disc and the second crushing disc; the grinding crushing mechanism includes an upper grinding disc and a lower grinding disc, a guide hole is provided in the middle of the upper grinding disc, the lower end of the inner shaft passes through the guide hole and is fixedly connected to the lower grinding disc, and there is a grinding gap between the upper grinding disc and the lower grinding disc. The drive motor of this crushing drive mechanism can simultaneously drive the blade crushing mechanism and the grinding crushing mechanism. When the crushing drive mechanism drives the blade crushing mechanism, it can cause the crushing blades on the first and second crushing discs to rotate in opposite directions. The crushing blades generate bidirectional shearing force on the crystalline complex salt, which can quickly break large pieces of crystalline complex salt into small particles. The small particles can fall into the grinding gap between the upper and lower grinding discs and be ground into powder by the relatively rotating upper and lower grinding discs. This ensures that the particle size of the electrolytic manganese crystalline complex salt meets the requirements for the particle size of the raw material for subsequent chemical manganese extraction, thus facilitating the extraction and recovery of manganese from the crystalline complex salt.

[0017] (2) The crushing drive mechanism of the crushing device adopts a nested design of inner and outer double shafts: the inner shaft is linked with the first crushing disc and the lower grinding disc, and the outer shaft is linked with the second crushing disc. The drive motor meshes with the first and second driven gears simultaneously through the drive gear to realize the synchronous drive of the blade and the grinding disc. The drive structure of the crushing device is simple and the operation is stable.

[0018] (3) The crushing tank of the crushing device is equipped with a screen plate and a feeding funnel. The screen plate is fixed inside the crushing tank, and the feeding funnel is located below the screen plate. The small particles that are initially crushed fall into the feeding funnel through the screen holes, while the large particles are intercepted by the screen plate and then crushed again by the crushing blades. The crushing device can ensure that the crushing process is continuous and has high crushing efficiency. Attached Figure Description

[0019] Figure 1 This is a front view of the overall structure of an electrolytic manganese production crystallization complex salt crushing device according to an embodiment of this utility model.

[0020] Figure 2 This is a cross-sectional view of the overall structure of an electrolytic manganese production crystallization double salt crushing device according to an embodiment of this utility model.

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0023] Figure 5 This is a three-dimensional structural diagram of the lower grinding disc in a preferred embodiment of the present invention.

[0024] In the above diagram: 100-crushing tank, 101-discharge port, 200-fixed cover, 201-feed inlet, 300-drive motor, 301-drive gear, 302-protective cover, 400-inner shaft, 401-first driven gear, 402-first crushing disc, 403-crushing blade, 500-outer shaft, 501-second driven gear, 502-second crushing disc, 600-sieve plate, 601-sieve hole, 602-guide funnel, 603-limiting sleeve, 700-upper grinding disc, 701-guide hole, 702-feed baffle, 710-lower grinding disc, 711-crushing bar, 712-crushing inclined surface, 720-crushing gap, 800-crystallized double salt. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0026] Please refer to Figures 1 to 4 The present invention relates to a crushing device for producing crystallized double salts in electrolytic manganese production, comprising a crushing tank 100, a crushing drive mechanism, a blade crushing mechanism, and a grinding crushing mechanism.

[0027] The crushing tank 100 has multiple support legs at its bottom, which support it to the ground. The bottom of the crushing tank 100 has a discharge port 101, and the top has a rotating mounting hole and a feed inlet 201. In this embodiment, the crushing tank 100 has an opening at the top, and a fixed cover 200 is also provided on the opening. The rotating mounting hole and the feed inlet 201 are both located on the fixed cover 200. A sieve plate 600 and a guide funnel 602 are fixedly installed inside the crushing tank 100. The sieve plate 600 has sieve holes 601 distributed on it. The crystalline complex salt 800 to be crushed enters the crushing tank 100 through the feed inlet 201 and is supported on the sieve plate 600.

[0028] The crushing drive mechanism includes an inner shaft 400, an outer shaft 500, and a drive motor 300. The outer shaft 500 is a hollow sleeve structure. The inner shaft 400 is rotatably disposed inside the outer shaft 500. Both ends of the inner shaft 400 extend out of the outer shaft 500. A rotating bearing can also be provided between the outer wall of the inner shaft 400 and the inner wall of the outer shaft 500. In this way, the inner shaft 400 and the outer shaft 500 are coaxially arranged and can rotate independently.

[0029] The outer shaft 500 is rotatably mounted in the rotating mounting hole. The top of the inner shaft 400 is fixedly provided with a first driven gear 401, and the top of the outer shaft 500 is fixedly provided with a second driven gear 501. The first driven gear 401 is located above the second driven gear 501. The output shaft end of the drive motor 300 is fixedly provided with a drive gear 301. The drive gear 301 meshes with both the first driven gear 401 and the second driven gear 501. Specifically, the drive gear 301, the first driven gear 401, and the second driven gear 501 are all bevel gears. The first driven gear 401 and the second driven gear 501 are arranged in parallel, and the drive gear 301 meshes perpendicularly with both the first driven gear 401 and the second driven gear 501.

[0030] The blade crushing mechanism includes a first crushing disc 402 and a second crushing disc 502, which are respectively fixed on the inner shaft 400 and the lower end of the outer shaft 500. The first crushing disc 402 and the second crushing disc 502 are respectively provided with multiple crushing blades 403. When the drive motor 300 rotates, it can drive the inner shaft 400 and the outer shaft 500 to rotate synchronously in opposite directions. This can drive the first crushing disc 402 and the second crushing disc 502 to rotate synchronously in opposite directions. The first crushing disc 402 and the second crushing disc 502 respectively drive the crushing blades 403 to generate bidirectional shearing force on the crystalline complex salt 800 supported on the sieve plate 600, so that it is crushed into small particles to pass through the sieve holes 601 on the sieve plate 600.

[0031] The crushing blades 403 on the first crushing disc 402 and the second crushing disc 502 are inclined relative to the horizontal plane. A protective cover 302 is also fixedly provided on the top of the fixed cover 200, and the second driven gear 501, the first driven gear 401, and the drive gear 301 are all located inside the protective cover 302.

[0032] The grinding and crushing mechanism includes an upper grinding disc 700 and a lower grinding disc 710. The upper grinding disc 700 is fixed below the feed funnel 602, and the lower grinding disc 710 is located below the upper grinding disc 700. Specifically, the upper grinding disc 700 has multiple fixed connecting rods on its side wall. One end of each connecting rod is fixedly connected to the upper grinding disc 700, and the other end is fixedly connected to the inner wall of the crushing tank 100. A feed guide hole 701 is provided in the middle of the upper grinding disc 700. The lower end of the inner shaft 400 passes through the feed guide hole 701 and is fixedly connected to the lower grinding disc 710. A grinding gap 720 exists between the upper grinding disc 700 and the lower grinding disc 710, and the grinding gap 720 communicates with the feed guide hole 701. In this embodiment, the grinding gap 720 is conical in shape, and its thickness gradually decreases as it extends outward from the center. The lower grinding disc 710 can rotate under the drive of the drive motor 300, thereby causing the upper and lower grinding discs to rotate relative to each other. Small particles of crystalline complex salt passing through the sieve hole 601 can pass through the guide hole 701 and fall into the grinding gap 720. The relatively rotating upper and lower grinding discs can further crush the small particles of crystalline complex salt into crystalline complex salt powder. The crystalline complex salt powder passes through the grinding gap 720 and falls into the bottom of the crushing tank 100, and is discharged from the discharge port.

[0033] In a preferred embodiment, the upper surface of the upper grinding disc 700 is recessed downwards to form a guide cone surface, which allows small particles of crystalline complex salt falling from the guide funnel 602 to fall into the guide hole 701. A conical feed baffle 702 is also fixed above the upper grinding disc 700 to prevent small particles of crystalline complex salt that have not been ground and crushed by the upper and lower grinding discs from falling directly to the bottom of the crushing tank 100.

[0034] In a preferred embodiment, the bottom of the material guide funnel 602 is provided with a discharge hole, and the middle of the discharge hole is also provided with a limiting sleeve 603. The outer wall of the limiting sleeve 603 is connected to the material guide funnel 602 through a connecting rod. The inner shaft 400 is rotatably limited within the limiting sleeve 603, and the limiting sleeve 603 ensures the stable rotation of the inner shaft 400.

[0035] refer to Figure 5In a preferred embodiment, the upper surface of the lower grinding disc 710 is provided with a crushing bar 711, and the crushing bar 711 is provided with a crushing inclined surface 712. When the lower grinding disc 710 rotates, the crushing bar 711 can squeeze the small particles of crystalline complex salt in the grinding gap 720 through its crushing inclined surface 712, thereby improving the grinding and crushing effect of the grinding and crushing mechanism on the crystalline complex salt.

[0036] The working process of the electrolytic manganese production crystallization double salt crushing device of this utility model is as follows: Crystallization double salt 800 produced by electrolytic manganese is fed into the crushing tank 100 through the feed inlet 201; the drive motor 300 is started, and the drive motor 300 simultaneously drives the blade crushing mechanism and the grinding crushing mechanism to operate. Specifically, the drive motor 300 drives the drive gear 301 to rotate, and the drive gear 301 simultaneously drives the first driven gear 401 and the second driven gear 501 to rotate synchronously in opposite directions. This allows the inner shaft 400 and the outer shaft 500 to rotate respectively... The first crushing disc 402 and the second crushing disc 502 rotate in opposite directions. The crushing blades 403 on the first crushing disc 402 and the second crushing disc 502 generate bidirectional shearing force on the crystallized double salt 800, which can quickly crush large pieces of crystallized double salt. The small particles produced by crushing pass through the screen holes 601 on the screen plate 600 and fall into the grinding gap 720 through the guide funnel 602. The large particles produced by crushing are intercepted by the screen plate 600 and then crushed again by the blades until they all pass through the screen holes 601 and fall into the grinding gap 720.

[0037] The rotating inner shaft 400 simultaneously drives the lower grinding disc 710 to rotate, so that the upper grinding disc 700 and the lower grinding disc 710 rotate relative to each other, so as to grind and crush the small particles of crystalline complex salt that fall into the grinding gap 720, crushing them into electrolytic manganese crystalline powder, which then falls out from the grinding gap 720 to the bottom of the crushing tank 100 and is discharged from the discharge port. The particle size of the discharged electrolytic manganese crystalline complex salt powder can meet the requirements of the raw material particle size for subsequent chemical manganese extraction.

[0038] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0039] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crushing device for producing crystallized double salts from electrolytic manganese, characterized in that, Includes a crushing tank (100), a crushing drive mechanism, a blade crushing mechanism, and a grinding crushing mechanism; The crushing tank (100) is provided with a rotating mounting hole and a feed inlet (201) at the top and a discharge outlet (101) at the bottom. A screen plate (600) and a guide funnel (602) are fixedly provided inside the crushing tank (100). Screen holes (601) are distributed on the screen plate (600). The crushing drive mechanism includes an inner shaft (400), an outer shaft (500), and a drive motor (300). The inner shaft (400) is rotatably disposed inside the outer shaft (500), and the outer shaft (500) is rotatably disposed inside the rotating mounting hole. A first driven gear (401) is fixedly disposed on the top of the inner shaft (400), and a second driven gear (501) is fixedly disposed on the top of the outer shaft (500). The first driven gear (401) is located above the second driven gear (501). A drive gear (301) is fixedly disposed at the end of the output shaft of the drive motor (300). The drive gear (301) meshes with both the first driven gear (401) and the second driven gear (501). The blade crushing mechanism includes a first crushing disc (402) and a second crushing disc (502). The first crushing disc (402) and the second crushing disc (502) are respectively fixed on the inner shaft (400) and the lower end of the outer shaft (500). The first crushing disc (402) and the second crushing disc (502) are respectively provided with multiple crushing blades (403). The grinding and crushing mechanism includes an upper grinding disc (700) and a lower grinding disc (710). The upper grinding disc (700) is fixed below the feed funnel (602), and the lower grinding disc (710) is located below the upper grinding disc (700). The upper grinding disc (700) has a feed hole (701) in the middle. The lower end of the inner shaft (400) passes through the feed hole (701) and is fixedly connected to the lower grinding disc (710). There is a grinding gap (720) between the upper grinding disc (700) and the lower grinding disc (710), and the grinding gap (720) communicates with the feed hole (701).

2. The electrolytic manganese production crystallization complex salt crushing device according to claim 1, characterized in that, The grinding gap (720) is in the shape of a conical shell, and its thickness gradually decreases as it extends outward from the center.

3. The electrolytic manganese production crystallization double salt crushing device according to claim 1, characterized in that, The upper surface of the upper grinding disc (700) is provided with a guide cone surface.

4. The electrolytic manganese production crystallization double salt crushing device according to claim 1, characterized in that, A feed baffle (702) is also fixedly installed above the upper grinding disc (700).

5. The electrolytic manganese production crystallization double salt crushing device according to claim 1, characterized in that, The upper grinding disc (700) has multiple fixed connecting rods on its side wall. One end of the fixed connecting rod is fixedly connected to the upper grinding disc (700), and the other end of the fixed connecting rod is fixedly connected to the inner wall of the crushing tank (100).

6. The electrolytic manganese production crystallization complex salt crushing device according to claim 1, characterized in that, The bottom of the feeding funnel (602) is provided with a discharge hole, and a limiting sleeve (603) is provided in the middle of the discharge hole. The outer wall of the limiting sleeve (603) is connected to the feeding funnel (602) through a connecting rod, and the inner shaft (400) is limited to rotation within the limiting sleeve (603).

7. The electrolytic manganese production crystallization complex salt crushing device according to claim 1, characterized in that, The upper surface of the lower grinding disc (710) is provided with a crushing bar (711), and the crushing bar (711) is provided with a crushing inclined surface (712).

8. The electrolytic manganese production crystallization complex salt crushing device according to claim 1, characterized in that, The crushing tank (100) has an opening at the top, and a fixed cover (200) is also provided on the opening at the top of the crushing tank (100). The rotating mounting hole and the feed inlet (201) are both located on the fixed cover (200).

9. The electrolytic manganese production crystallization complex salt crushing device according to claim 8, characterized in that, The top of the fixed cover (200) is also fixedly provided with a protective cover (302), and the second driven gear (501), the first driven gear (401), and the drive gear (301) are all located inside the protective cover (302).

10. The electrolytic manganese production crystallization double salt crushing device according to claim 1, characterized in that, The crushing blade (403) is set at an angle relative to the horizontal plane.

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