Feeding device of jet mill for lithium hydroxide processing

Abstract

The utility model relates to a feeding device of a jet mill for processing lithium hydroxide. The bottom of the temporary storage bin communicates with the conveying pipeline, and a star valve is arranged between the conveying pipeline and the temporary storage bin; 18-24 blades are arranged in a shell of the star valve; an air hammer is installed on the side face of the temporary storage bin. Pulse valves are mounted on the side surfaces of the conveying pipelines; the bottom of the conveying pipeline is communicated with a feeding pipe through a conical hopper, one end of the feeding pipe is communicated with a jet mill, and the other end of the feeding pipe is communicated with a nitrogen blowing pipe. The lithium hydroxide crushing device has the advantages that lithium hydroxide coarse powder in the temporary storage bin enters the conveying pipeline through the star valve and then is conveyed into the jet mill to be crushed, gaps between blades of the star valve are small, the feeding amount is easy to control, subsequent crushing is more complete, the particle size of crushed lithium hydroxide is small, and the crushing efficiency is improved; a pulse valve is mounted on the side surface of the conveying pipeline to prevent the conveying pipeline from being blocked; and feeding is assisted through the nitrogen blowing pipe, certain impact force is achieved during feeding, the smashing effect is better, and the smashing efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of airflow pulverizer, specifically relates to the feeding device of airflow pulverizer for lithium hydroxide processing. BACKGROUND

[0002] In lithium hydroxide processing, lithium hydroxide coarse powder needs to be crushed, usually by airflow pulverizer. The working principle of airflow pulverizer is: compressed air is injected into the crushing chamber at high speed through the Laval nozzle after filtration and drying, the material is repeatedly collided, rubbed and sheared at the intersection of multiple high-pressure air flows, and the crushed material moves to the classification area with the ascending air flow under the suction of the fan, and under the action of the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated, the fine particles meeting the particle size requirement pass through the classification wheel into the cyclone separator and dust collector for collection, and the coarse particles descend to the crushing area for continuous crushing.

[0003] In the prior art, when the airflow pulverizer feeds, the material is usually directly discharged from the buffer bin, but the feeding amount is not easy to control, the feeding amount is large, which leads to incomplete subsequent crushing, the crushed lithium hydroxide still has a large particle size, and needs to be continuously crushed, the crushing efficiency is low, and pipeline blockage is prone to occur during the feeding process, which is troublesome to clean. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of providing the feeding device of airflow pulverizer for lithium hydroxide processing, which can solve the problems of the prior art, such as the feeding amount not being easy to control, the feeding amount being large, leading to incomplete subsequent crushing, the crushed lithium hydroxide still having a large particle size, the need for continuous crushing, the low crushing efficiency, and the pipeline blockage being prone to occur during the feeding process.

[0005] To solve the above technical problems, the technical scheme of the utility model is: the feeding device is communicated with the airflow pulverizer, characterized by: comprising a buffer bin, a connecting pipeline, a conveying pipeline and a star valve;

[0006] The bottom outlet of the buffer bin is communicated with the conveying pipeline, a star valve is arranged between the conveying pipeline and the buffer bin, and the star valve is connected with the bottom of the buffer bin and the top of the conveying pipeline through connecting pipelines respectively;

[0007] 18-24 blades are arranged in the shell of the star valve, and the blades are driven to rotate by a motor;

[0008] A pneumatic hammer is mounted on the side surface of the buffer bin;

[0009] A pulse valve is mounted on the side surface of the conveying pipeline;

[0010] The bottom of the conveying pipeline is communicated with a conical hopper, the bottom of the conical hopper is communicated with the top of a feeding pipe, one end of the feeding pipe is communicated with a crushing chamber of an airflow crusher, and the other end of the feeding pipe is communicated with a nitrogen blowing pipe.

[0011] Further, 24 blades are arranged in the shell of the star valve.

[0012] Further, the nitrogen blowing pipe is connected with a nitrogen injection device.

[0013] Further, the nitrogen blowing pipe is supported and fixed by a support, the support comprises a connecting structure and a supporting structure, the connecting structure is a C-shaped frame, the connecting structure is welded and fixed with the side surface of the nitrogen blowing pipe, the supporting structure is a longitudinal supporting frame, the supporting frame is welded and fixed with the connecting structure, and a base is welded and fixed at the bottom of the supporting frame.

[0014] Further, a gas flow meter is arranged on the nitrogen blowing pipe.

[0015] Further, an observation section is arranged in the middle section of the conveying pipeline, and the observation section is a transparent pipeline.

[0016] After the above structure is adopted, the lithium hydroxide coarse powder in the buffer bin is discharged and enters the conveying pipeline through the star valve when the airflow crusher feeds, and then is fed into the crushing chamber of the airflow crusher through the feeding pipe for crushing, the star valve has 18-24 blades, the gap between the blades is small, the feeding amount is easy to control, a large amount of feeding will not cause accumulation, subsequent crushing is more complete, the particle size of the lithium hydroxide after crushing is smaller, and the crushing efficiency is improved.

[0017] The air hammer is arranged on the side surface of the buffer bin, so that the lithium hydroxide coarse powder in the buffer bin is prevented from being accumulated and blocked, the pulse valve is arranged on the side surface of the conveying pipeline, so that the conveying pipeline is prevented from being blocked during feeding, the nitrogen blowing pipe assists feeding, feeding also has a certain impact force, the crushing effect is better, and the crushing efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of the present application;

[0019] Figure 2 Fig. 4 is a sectional view of the star valve of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and specific embodiments. The following embodiments can make the person skilled in the art more fully understand the present application, but the present application is not limited in the scope of the embodiments.

[0021] As Figure 1 shown in the specific embodiment, the technical scheme adopted is as follows: the feeding device of the jet mill for lithium hydroxide processing is communicated with the jet mill 10, and the feeding device is used to feed the jet mill 10.

[0022] The feeding device of the jet mill for lithium hydroxide processing comprises a buffer bin 1, a connecting pipeline 2, a conveying pipeline 3, and a star valve 4.

[0023] The side surface of the buffer bin 1 is provided with an air hammer 6, which is used to form vibration in the buffer bin 1, so as to prevent the accumulation and blockage of lithium hydroxide coarse powder in the buffer bin 1.

[0024] The bottom outlet of the buffer bin 1 is communicated with the conveying pipeline 3, and the star valve 4 is arranged between the buffer bin 1 and the conveying pipeline 3. Figure 2 As shown in the figure, 18-24 blades 41 are arranged in the shell of the star valve 4. In this embodiment, 24 blades 41 are arranged in the shell of the star valve 4. The motor of the star valve 4 drives the rotation shaft to rotate through a speed reducer, and the rotation shaft drives the blades 41 to rotate. The material is fed from the feeding port above the shell of the star valve 4. The lithium hydroxide coarse powder falls into the accommodation space between the adjacent blades 41, and is transported to the bottom of the star valve 4 through rotation, and is discharged from the bottom discharge port into the conveying pipeline 3. The star valve 4 has a large number of blades 41, and the gap between the blades 41 is small, so the feeding amount is easy to control and will not cause accumulation due to a large amount of feeding.

[0025] The star valve 4 is connected with the bottom of the buffer bin 1 and the top of the conveying pipeline 3 through the connecting pipeline 2. The middle section of the conveying pipeline 3 is provided with an observation section 31, which is a transparent pipeline. The material conveying condition in the conveying pipeline 3 can be observed through the observation section 31.

[0026] The side surface of the conveying pipeline 3 is provided with a pulse valve 5. When the conveying pipeline 3 is accumulated, the pulse valve 5 is used for blowing to prevent the conveying pipeline 3 from being blocked during feeding.

[0027] The bottom of the conveying pipeline 3 is communicated with a conical hopper 7. The bottom of the conical hopper 7 is communicated with the top of a feeding pipe 8. One end of the feeding pipe 8 is communicated with the crushing chamber of the jet mill 10. The other end of the feeding pipe 8 is communicated with a nitrogen gas blowing pipe 9. The nitrogen gas blowing pipe 9 is connected with a nitrogen gas injection device. The feeding pipe 8 is used for feeding by blowing nitrogen gas, so that the lithium hydroxide coarse powder is fed into the crushing chamber of the jet mill 10. The feeding also has a certain impact force, and the crushing effect is better.

[0028] A gas flow meter is arranged on the nitrogen gas blowing pipe 9 to control the flow of nitrogen gas.

[0029] The nitrogen blowing pipe 9 is supported and fixed by the support 11, the support 11 is arranged on both sides of the nitrogen blowing pipe 9, the support 11 comprises a connecting structure 111 and a supporting structure 112, the connecting structure 111 is a C-shaped frame, the connecting structure 111 is welded and fixed with the side surface of the nitrogen blowing pipe 9, the supporting structure 112 is a longitudinal supporting frame, the supporting frame is welded and fixed with the connecting structure 111, and the bottom of the supporting frame is welded and fixed with a base 113, the base 113 is fixed with the ground through bolts, and the supporting effect of the nitrogen blowing pipe 9 is good through the support 11.

[0030] The nitrogen injection equipment, the gas flow meter, the pulse valve 5, the air hammer 6 and the like are all general standard parts or parts known by those skilled in the art, the structure and principle of which can be known by those skilled in the art through a technical manual or through a conventional experimental method, and will not be described.

[0031] Working principle: when the jet mill is fed, the lithium hydroxide coarse powder in the buffer bin 1 is discharged, enters the conveying pipeline 3 through the star valve 4, and then is fed into the crushing chamber of the jet mill 10 through the feeding pipe 8 for crushing. The star valve 4 has 18-24 blades 41, the gap between the blades 41 is small, the feeding amount is easy to control, and a large amount of feeding will not cause accumulation, and subsequent crushing is more complete. After crushing, the lithium hydroxide has a smaller particle size, and the crushing efficiency is improved. The air hammer 6 is arranged on the side of the buffer bin 1, which can prevent the lithium hydroxide coarse powder in the buffer bin 1 from being accumulated and blocked. The pulse valve 5 is installed on the side of the conveying pipeline 3, which can prevent the conveying pipeline 3 from being blocked during feeding. The conveying condition of the material in the conveying pipeline 3 can be observed through the transparent pipeline of the observation section 31. The nitrogen blowing pipe 9 assists in feeding, and has a certain impact force during feeding, so that the crushing effect is better and the crushing efficiency is higher.

[0032] The basic principle and main characteristics of the utility model and the advantages of the utility model are shown and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for an air jet mill for lithium hydroxide processing, wherein the feeding device is connected to the air jet mill, characterized in that: Includes buffer compartments, connecting pipes, delivery pipes, and star valves; The bottom outlet of the buffer compartment is connected to the conveying pipeline, and a star valve is provided between the conveying pipeline and the buffer compartment. The star valve is connected to the bottom of the buffer compartment and the top of the conveying pipeline through connecting pipes. The star valve has 18-24 blades inside its housing, and the blades are driven to rotate by a motor. A pneumatic hammer is installed on the side of the buffer compartment; A pulse valve is installed on the side of the conveying pipeline; The bottom of the conveying pipe is connected to a conical hopper, the bottom of the conical hopper is connected to the top of the feeding pipe, one end of the feeding pipe is connected to the crushing chamber of the airflow pulverizer, and the other end of the feeding pipe is connected to a nitrogen blowing pipe.

2. The feeding device of the air jet mill for lithium hydroxide processing according to claim 1, characterized in that: The star valve has 24 blades inside its housing.

3. The feeding device of the air jet mill for lithium hydroxide processing according to claim 1, characterized in that: The nitrogen blowing pipe is connected to the nitrogen injection equipment.

4. The feeding device of the air jet mill for lithium hydroxide processing according to claim 1, characterized in that: The nitrogen blowing pipe is supported and fixed by a bracket, which includes a connecting structure and a supporting structure. The connecting structure is a C-shaped frame and is welded and fixed to the side of the nitrogen blowing pipe. The supporting structure is a longitudinal support frame and is welded and fixed to the connecting structure. A base is welded and fixed to the bottom of the support frame and is fixed to the ground by bolts.

5. The feeding device of the air jet mill for lithium hydroxide processing according to claim 1, characterized in that: A gas flow meter is installed on the nitrogen blowing pipe.

6. The feeding device of the air jet mill for lithium hydroxide processing according to claim 1, characterized in that: The middle section of the conveying pipeline is provided with an observation section, which is a transparent pipeline.

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