System for reducing temperature of ammonium dihydrogen phosphate for battery

Abstract

The utility model provides a system for reducing the temperature of ammonium dihydrogen phosphate for a battery, and solves the technical problem that false caking is easily caused in the production process of the ammonium dihydrogen phosphate for the battery at present. Comprising a screening unit which comprises a plurality of vibrating screens arranged at intervals in the moving direction of ammonium dihydrogen phosphate; the cooling unit comprises a shell, a screen, a water cooling pipeline and an air cooling assembly, the screen, the water cooling pipeline and the air cooling assembly are arranged in the shell, the air cooling assembly is arranged above the water cooling pipeline in the extending direction of the shell, and the screen is arranged above and / or below the water cooling pipeline in the extending direction of the shell; the closed water cooling tower is provided with a first accommodating cavity for accommodating desalted water and is connected to the water cooling pipeline; the dehumidification unit comprises a dehumidifier connected to the cooling unit; the dust collection unit comprises a dust extractor arranged close to the cooling unit; and the collecting bin is connected to the cooling unit through a conveying device so as to cool the ammonium dihydrogen phosphate and prevent the ammonium dihydrogen phosphate from false caking.

Description

Technical Field

[0001] The utility model relates to the technical field of battery-grade diammonium phosphate production, and in particular to a system for reducing the temperature of diammonium phosphate for batteries. Background Art

[0002] The MAP plate cooler for batteries is a device used to cool powder or granular materials. This innovative technology combines the dense phase conveying principle with the traditional plate heat exchanger design concept. For the MAP plate cooler for batteries, the material phase passes vertically from top to bottom through the gap channel between the stainless steel heat transfer plates in a dense phase conveying manner.

[0003] During the cooling application, the cooling water is circulated through the heat transfer plate, just like the traditional liquid or gas heat exchange, the flow direction of the material and the cooling medium is countercurrent to obtain the highest heat transfer efficiency. The material moves slowly from top to bottom to ensure that it has enough residence time to obtain the required heat transfer. At the same time, the slow movement of the material will not generate dust and the degradation of the material particles. During operation, the equipment needs to be fully loaded with materials, which can provide the best heat transfer state. The material level control system ensures that the plate cooler operates in the best state.

[0004] In the production process of battery-grade diammonium phosphate in the existing technology, when the temperature of the offline product is high, about 55°C and in a sealed state, the battery-grade diammonium phosphate will quickly produce crystal water, causing false agglomeration of the product, causing difficulties for downstream customers to use it, and leading to customer quality complaints. Utility Model Content

[0005] The utility model aims to provide a system for reducing the temperature of diammonium phosphate for batteries, so as to solve the technical problem that false agglomeration is easily caused in the current production process of diammonium phosphate for batteries.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A system for reducing the temperature of diammonium phosphate for batteries, comprising a screening unit, a cooling unit, a closed cooling tower, a dehumidification unit, a dust collection unit and a collection silo;

[0008] The screening unit comprises a plurality of vibrating screens arranged at intervals along the moving direction of the diammonium phosphate;

[0009] The cooling unit comprises a shell and a screen, a water cooling pipe and an air cooling component arranged in the shell, wherein the air cooling component is arranged above the water cooling pipe along the extending direction of the shell, and the screen is arranged above and / or below the water cooling pipe along the extending direction of the shell;

[0010] The closed cooling tower is provided with a first accommodating chamber for accommodating desalted water, which is connected to the water cooling pipe;

[0011] The dehumidification unit includes a dehumidifier connected to the cooling unit;

[0012] The dust collecting unit comprises a dust extractor arranged close to the cooling unit;

[0013] The collecting bin is connected to the cooling unit via a conveying device.

[0014] In some embodiments, in the cooling unit, the air cooling component includes a plurality of air blowing pipes connected to an air source.

[0015] In some embodiments, the air blowing tube is arranged at an angle to the screen.

[0016] In some embodiments, in the cooling unit, the screen is provided with multiple layers, which are arranged at intervals along the extension direction of the shell.

[0017] In some embodiments, the conveying device is a plurality of screw conveyors arranged at intervals along the transport direction of the diammonium phosphate.

[0018] In some embodiments, the dehumidification unit further includes a dehumidification fan connected to the dehumidifier.

[0019] In some embodiments, a plurality of vibrating screens are provided between the cooling unit and the collecting silo and are spaced apart along the transport direction of the diammonium phosphate.

[0020] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0021] (1) The utility model acts on the diammonium phosphate through multiple vibrating screens of the screening unit to prevent the diammonium phosphate from agglomerating.

[0022] (2) The cooling unit of the utility model performs water cooling and air cooling on the diammonium phosphate and is provided with a multi-layer screen to further prevent the diammonium phosphate from agglomerating.

[0023] (3) The angles of the air blowing pipe and the screen in the cooling unit of the utility model are set to increase the blowing effect of the diammonium dihydrogen phosphate, and the screen can further prevent false agglomeration.

[0024] (4) The dehumidification unit of the utility model includes a dehumidifier connected to the cooling unit to dry the diammonium dihydrogen phosphate in the cooling unit, which can further prevent false agglomeration.

[0025] (5) The utility model is provided with a dust collecting unit, which can reduce dust and reduce environmental pollution.

[0026] (6) The utility model has reasonable design, simple structure and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a system for reducing the temperature of ammonium dihydrogen phosphate for batteries provided in an embodiment of the utility model;

[0029] Figure 2 A schematic diagram of the cooling unit structure of the system for reducing the temperature of diammonium phosphate for batteries provided in an embodiment of the utility model;

[0030] icon:

[0031] 100. Screening unit;

[0032] 200. Cooling unit;

[0033] 210, housing; 220, screen; 230, water cooling pipe; 240, air cooling assembly;

[0034] 300, dehumidification unit;

[0035] 310, dehumidifier; 320, dehumidification fan;

[0036] 400, collection silo;

[0037] 500, bucket elevator;

[0038] 600. Screw conveyor. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Example

[0041] An embodiment of the present application provides a system for reducing the temperature of diammonium phosphate for batteries, so as to cool the diammonium phosphate and prevent its false agglomeration.

[0042] See also Figure 1 as well as Figure 2 , the system for reducing the temperature of diammonium phosphate for batteries provided in the embodiment of the present application includes a screening unit 100, a cooling unit 200, a closed cooling tower, a dehumidification unit 300, a dust collection unit and a collection silo 400;

[0043] The screening unit 100 includes a plurality of vibrating screens arranged at intervals along the moving direction of the diammonium phosphate to prevent the diammonium phosphate from agglomerating to a certain extent;

[0044] The cooling unit 200 comprises a shell 210 and a screen 220, a water-cooling pipe 230 and an air-cooling assembly 240 arranged in the shell 210. The air-cooling assembly 240 is arranged above the water-cooling pipe 230 along the extending direction of the feed port and the discharge port of the shell 210. The screen 220 is arranged above and / or below the water-cooling pipe 230 along the extending direction of the feed port and the discharge port of the shell 210 to cool the diammonium dihydrogen phosphate, i.e., water cooling and air cooling. In some embodiments, the cooling unit 200 is further provided with a vibrating member to vibrate the shell 210. In some embodiments, the shell 210 comprises a screen 220, a water-cooling pipe 230 and an air-cooling assembly 240. The air-cooling assembly 240 is arranged at the top of the shell 210, close to the feed port. A plurality of layers of screens 220 are arranged below the air-cooling assembly 240. The water-cooling pipe 230 is arranged below the screen 220. In some embodiments, a plurality of layers of screens 220 are also arranged below the water-cooling pipe 230.

[0045] A closed cooling tower is provided with a first accommodating chamber for accommodating desalted water, connected to the water cooling pipe 230, including a water inlet pipe and a water outlet pipe, connected to the water cooling pipe 230, for water cooling of diammonium phosphate;

[0046] The dehumidification unit 300 includes a dehumidifier 310 connected to the cooling unit 200 to dry the diammonium phosphate in the cooling unit 200;

[0047] A dust collecting unit, including a dust extractor disposed close to the cooling unit 200 to prevent dust;

[0048] The collecting silo 400 is connected to the cooling unit 200 via a conveying device to collect the diammonium phosphate.

[0049] In some embodiments, in the cooling unit 200, the air cooling component 240 includes a plurality of air blowing pipes connected to an air source to air-cool the diammonium dihydrogen phosphate. At the same time, partially agglomerated diammonium dihydrogen phosphate can be blown away to prevent pseudo-agglomeration.

[0050] In some embodiments, the air blowing tube and the screen 220 are set at an angle to increase the dispersion effect of the diammonium phosphate, and the screen 220 can further prevent false agglomeration.

[0051] In some embodiments, in the cooling unit 200, the screen 220 is provided with multiple layers and is spaced apart along the extending direction of the feed port and the discharge port of the outer shell 210, which can further prevent the pseudo-agglomeration of diammonium phosphate.

[0052] In some embodiments, the conveying device is a plurality of screw conveyors 600 arranged at intervals along the transport direction of the diammonium phosphate to convey the diammonium phosphate.

[0053] In some embodiments, the dehumidification unit 300 further includes a dehumidification fan 320 connected to the dehumidifier 310 to further dry the diammonium hydrogen phosphate.

[0054] In some embodiments, a plurality of vibrating screens are provided between the cooling unit 200 and the collecting silo 400 and are spaced apart along the transport direction of the diammonium phosphate to further prevent the diammonium phosphate from agglomerating through vibration.

[0055] In some embodiments, a bucket elevator 500 is provided before the screening unit 100 .

[0056] In some embodiments, the cooling unit 200 is connected to the conveying device via a bucket elevator 500 .

[0057] The following is a detailed description of the use process of the system for reducing the temperature of ammonium dihydrogen phosphate for batteries in the present application:

[0058] When in use, the diammonium phosphate is acted on by multiple vibrating screens of the screening unit 100 to prevent the diammonium phosphate from agglomerating. The diammonium phosphate after passing through the vibrating screen enters the cooling unit 200, and the air-cooling component 240 of the cooling unit 200 blows air to the diammonium phosphate for air cooling. After the diammonium phosphate passes through the screen 220, it passes through the water-cooling pipe 230. The closed cooling tower provides desalted water to the water-cooling pipe 230 to further cool the diammonium phosphate. The cooled diammonium phosphate is conveyed to the collecting silo 400 through the bucket elevator 500 and the screw conveyor 600 for collection. During the cooling process, the dehumidification unit 300 continues to work to dry the diammonium phosphate, and the dust collecting unit continues to work to suppress dust at the operation site.

[0059] The system for reducing the temperature of ammonium dihydrogen phosphate for batteries of the present application has at least the following advantages:

[0060] (1) The utility model acts on the diammonium phosphate through multiple vibrating screens of the screening unit to prevent the diammonium phosphate from agglomerating.

[0061] (2) The cooling unit of the utility model performs water cooling and air cooling on the diammonium phosphate and is provided with a multi-layer screen to further prevent the diammonium phosphate from agglomerating.

[0062] (3) The angles of the air blowing pipe and the screen in the cooling unit of the utility model are set to increase the blowing effect of the diammonium dihydrogen phosphate, and the screen can further prevent false agglomeration.

[0063] (4) The dehumidification unit of the utility model includes a dehumidifier connected to the cooling unit to dry the diammonium dihydrogen phosphate in the cooling unit, which can further prevent false agglomeration.

[0064] (5) The utility model is provided with a dust collecting unit, which can reduce dust and reduce environmental pollution.

[0065] (6) The utility model has reasonable design, simple structure and good practicality.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A system for reducing the temperature of diammonium phosphate for batteries, characterized in that: include: A screening unit, comprising a plurality of vibrating screens arranged at intervals along the moving direction of the diammonium phosphate; A cooling unit, comprising a shell and a screen, a water cooling pipe and an air cooling component arranged in the shell, wherein the air cooling component is arranged above the water cooling pipe along the extending direction of the shell, and the screen is arranged above and / or below the water cooling pipe along the extending direction of the shell; A closed cooling tower is provided with a first accommodating chamber for accommodating desalted water, connected to the water cooling pipeline; a dehumidification unit, comprising a dehumidifier connected to the cooling unit; A dust collecting unit, comprising a dust extractor disposed close to the cooling unit; The collecting silo is connected to the cooling unit via a conveying device.

2. The system for reducing the temperature of diammonium phosphate for batteries according to claim 1, characterized in that: In the cooling unit, the air cooling component includes a plurality of air blowing pipes connected to an air source.

3. The system for reducing the temperature of diammonium phosphate for batteries according to claim 2, characterized in that: The air blowing pipe and the screen are arranged at an angle.

4. The system for reducing the temperature of diammonium phosphate for batteries according to any one of claims 1 to 3, characterized in that: In the cooling unit, the screen has multiple layers, which are arranged at intervals along the extension direction of the shell.

5. The system for reducing the temperature of diammonium phosphate for batteries according to any one of claims 1 to 3, characterized in that: The conveying device is a plurality of screw conveyors arranged at intervals along the transport direction of the diammonium phosphate.

6. The system for reducing the temperature of diammonium phosphate for batteries according to any one of claims 1 to 3, characterized in that: The dehumidification unit further includes a dehumidification fan connected to the dehumidifier.

7. The system for reducing the temperature of diammonium phosphate for batteries according to any one of claims 1 to 3, characterized in that: A plurality of vibrating screens are also provided between the cooling unit and the collecting silo and are spaced apart along the transport direction of the diammonium phosphate.

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