Dust treatment device for lithium carbonate production

Abstract

The utility model discloses a dust treatment device for lithium carbonate production, and relates to the technical field of lithium carbonate production equipment. The device comprises a treatment box body, one side of the top of the treatment box body is provided with an air inlet pipe, and the air inlet pipe is provided with an electric valve; one side of the bottom of the treatment box body is connected with a discharging pipe; a discharging valve is mounted on the discharging pipe; the top of the other side of the treatment box body is communicated with a gas outlet pipe; a gas detector is mounted on the gas outlet pipe; a collecting hopper, a vibrating screen plate, a pulse back-flushing bag-type dust collector and an activated carbon adsorption layer are sequentially arranged in the treatment box body from bottom to top; the bottom of the collecting hopper is connected with a discharging pipe. According to the lithium carbonate production device, the vibrating screen plate, the pulse back-blowing bag-type dust collector and the activated carbon adsorption layer are arranged for multi-stage filtration and purification, dust and harmful gas generated in the lithium carbonate production process can be effectively removed, large-particle dust is intercepted by the vibrating screen plate, and fine dust is further filtered by the pulse back-blowing bag-type dust collector.

Description

Technical Field

[0001] This utility model belongs to the technical field of lithium carbonate production equipment, specifically, it relates to a dust treatment device for lithium carbonate production. Background Technology

[0002] The production of lithium carbonate generates a large amount of dust, which not only pollutes the environment but also affects the normal operation of production equipment and even harms the health of operators.

[0003] Chinese patent CN213824045U discloses a dust treatment device for feed production, including a box body. A drying fan is bolted to one side of the top of the box body, and the air outlet of the drying fan is located inside the box body. A water pump is bolted to the other side of the top of the box body, and the water outlet of the water pump is connected to a nozzle through a water pipe. A fixing plate is bolted to the top of one side of the box body. By setting an electromagnet, iron impurities mixed in the dust gas can be adsorbed to prevent impurities from mixing into the air and causing pollution. By setting a condenser tube filled with condensate, the internal temperature of the box body can be cooled to prevent the gas temperature from being too high and affecting the equipment. By setting an air quality detector, the detection end of the air quality detector is located inside the air outlet pipe to detect the quality of the filtered air and ensure that the discharged gas is unpolluted. However, the device has a large number of material drop holes on the surface of the support plate. During the process of dust falling through the material drop holes, dust may accumulate at the material drop holes, causing blockage and affecting the normal falling and collection of dust.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dust treatment device for lithium carbonate production, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A dust treatment device for lithium carbonate production includes: a treatment chamber, an air inlet pipe installed on one side of the top of the treatment chamber, and an electric valve installed on the air inlet pipe; a discharge pipe connected to one side of the bottom of the treatment chamber, and a discharge valve installed on the discharge pipe; an air outlet pipe connected to the top of the other side of the treatment chamber, and a gas detector installed on the air outlet pipe; the treatment chamber contains, from bottom to top, a collection hopper, a vibrating screen plate, a pulse-jet bag filter, and an activated carbon adsorption layer; the bottom of the collection hopper is connected to the discharge pipe; the vibrating screen plate is installed in the treatment chamber by an elastic support member, and a vibration motor is installed below the vibrating screen plate; the pulse-jet bag filter includes several filter bags, the open ends of the filter bags are fixed on a fixing frame, the fixing frame is installed in the treatment chamber, and the pulse-jet device is connected to the top of the filter bags.

[0008] Optionally, the inner wall of the processing box is provided with a groove, and the elastic support is located in the groove.

[0009] Optionally, the vibrating screen plate is connected to the groove by an elastic support member, which is a rubber pad.

[0010] Optionally, the pulse backflush device includes an air pump, an air tank, and a pulse controller.

[0011] Optionally, the air pump is connected to the air storage tank via a pipe, the air storage tank is connected to the top of the cloth bag via a pulse pipe, and the pulse controller is located on the surface of the pulse pipe.

[0012] Optionally, the collecting hopper has an inverted conical structure and a smooth inner wall.

[0013] Optionally, the activated carbon adsorption layer is composed of multiple layers of activated carbon fiber felt or granular activated carbon.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] 1. By setting up a multi-stage filtration and purification system consisting of a vibrating screen plate, a pulse jet bag filter, and an activated carbon adsorption layer, the dust and harmful gases generated during the lithium carbonate production process can be effectively removed. The vibrating screen plate intercepts large dust particles, the pulse jet bag filter further filters fine dust, and the activated carbon adsorption layer deeply purifies residual harmful gases and fine particles, ensuring that the final discharged gas meets a high cleanliness standard and greatly reducing pollution to the atmospheric environment.

[0016] 2. By setting a vibrating motor under the vibrating screen plate to make the screen plate vibrate at high frequency, large dust particles are effectively prevented from accumulating and clogging the screen plate, ensuring smooth gas flow and continuous filtration performance of the screen plate. The pulse back-flushing device can remove dust from the surface of the filter bag in time, avoid filter bag clogging, maintain good filtration performance, extend the service life of the filter bag, reduce the risk of equipment damage or shutdown due to clogging, and ensure stable operation of the equipment.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0019] In the picture:

[0020] Figure 1 This is a schematic diagram of the overall structure;

[0021] Figure 2 A schematic diagram of the internal structure of the enclosure;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 for Figure 2 A magnified structural diagram at point B in the middle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Processing chamber; 2. Air inlet pipe; 3. Material outlet pipe; 4. Air outlet pipe; 5. Electric valve; 6. Gas detector; 7. Material outlet valve; 8. Activated carbon adsorption layer; 9. Fixing frame; 10. Filter bag; 11. Vibrating screen plate; 12. Rubber pad; 13. Collection hopper; 14. Gas storage tank; 15. Air pump; 16. Pulse pipeline; 17. Pulse controller; 18. Vibration motor.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Please see Figure 1-4As shown, this embodiment provides a lithium carbonate production dust treatment device, including: a treatment box 1, an air inlet pipe 2 installed on one side of the top of the treatment box 1, and an electric valve 5 installed on the air inlet pipe 2; a discharge pipe 3 connected to one side of the bottom of the treatment box 1, and a discharge valve 7 installed on the discharge pipe 3; an air outlet pipe 4 connected to the top of the other side of the treatment box 1, and a gas detector 6 installed on the air outlet pipe 4; a collection hopper 13, a vibrating screen plate 11, a pulse back-blowing bag filter 10 dust collector and an activated carbon adsorption layer 8 are arranged sequentially from bottom to top inside the treatment box 1; the bottom of the collection hopper 13 is connected to the discharge pipe 3; the vibrating screen plate 11 is installed inside the treatment box 1 by an elastic support member, and a vibration motor 18 is provided below the vibrating screen plate 11; the pulse back-blowing bag filter 10 dust collector includes a plurality of filter bags 10, the open end of the filter bags 10 is fixed on a fixing frame 9, the fixing frame 9 is installed inside the treatment box 1, and the pulse back-blowing device is connected to the top of the filter bags 10.

[0029] The processing chamber 1 serves as the main body of the entire device, providing installation space for various internal components. It integrates the inlet pipe 2, outlet pipe 3, exhaust pipe 4, and internal dust treatment components, enabling them to work together to complete the dust treatment task. The inlet pipe 2, located on the top side of the processing chamber 1, is the inlet for dust-laden gas generated during lithium carbonate production. The electric valve 5 precisely controls the opening and closing status of the inlet pipe 2 and the gas flow rate, facilitating adjustment of the air intake according to production conditions and the device's processing capacity. It also allows for timely shut-off of the gas supply during device maintenance or shutdown, ensuring safety. The outlet pipe 3 is connected to the bottom side of the processing chamber 1, and its function is to discharge the collected dust from the processing chamber 1. The outlet valve 7 is installed on the outlet pipe 3. The upper part can control the timing and speed of dust discharge, facilitating the collection and treatment of filtered dust and preventing random dust leakage. The exhaust pipe 4 is connected to the top of the other side of the treatment chamber 1 to discharge the purified gas. The gas detector 6 is installed on the exhaust pipe 4 to monitor the quality of the discharged gas in real time, such as detecting the dust content and concentration of harmful gases in the gas, ensuring that the discharged gas meets environmental emission standards and avoids environmental pollution. The collection hopper 13 is located at the bottom of the treatment chamber 1, and its bottom is connected to the discharge pipe 3. Its main function is to collect dust falling from the upper parts. Due to the design of the collection hopper 13, the dust can naturally slide down and concentrate under the action of gravity, and be discharged through the discharge pipe 3 and the discharge valve 7. The housing consists of a vibrating screen plate 11 installed inside the processing housing 1 via elastic supports, such as springs or rubber pads 12. These supports not only support the vibrating screen plate 11 but also provide cushioning for its vibration. A vibrating motor 18 located below the vibrating screen plate 11 drives it to vibrate at high frequency during operation. When dust-laden gas passes through the vibrating screen plate 11, large dust particles are intercepted. Simultaneously, the high-frequency vibration effectively prevents dust accumulation and blockage on the screen plate, ensuring the filtration effect and continuous operation of the screen plate. The pulse-jet bag filter 10 consists of several filter bags 10, a fixing frame 9, and a pulse-jet device. The open ends of the filter bags 10 are fixed to the fixing frame 9, which is installed inside the processing housing 1. When dust-laden gas passes through the filter bags 10, dust is intercepted. On the surface of the filter bag 10, the purified gas is discharged through the filter bag 10. The pulse backflushing device is connected to the top of the filter bag 10. When the dust on the surface of the filter bag 10 accumulates to a certain extent, the pulse backflushing device is activated, and high-pressure airflow is blown back into the filter bag 10 to remove the dust on the filter bag 10, prevent the filter bag 10 from clogging, maintain good filtration performance, and extend the service life of the filter bag 10. The activated carbon adsorption layer 8 is located at the top inside the treatment chamber 1. The gas filtered by the filter bag 10 continues to flow upward and enters the activated carbon adsorption layer 8. Activated carbon has a rich microporous structure and a large specific surface area, which can adsorb residual harmful gases and fine dust in the gas, further purifying the gas and ensuring that the finally discharged gas meets a higher cleanliness standard.

[0030] In this embodiment, the inner wall of the processing box 1 is provided with a groove, the elastic support is located in the groove, the vibrating screen plate 11 is connected to the groove through the elastic support, the elastic support is a rubber pad 12, the pulse backflushing device includes an air pump 15, an air tank 14 and a pulse controller 17, the air pump 15 is connected to the air tank 14 through a pipe, the air tank 14 is connected to the top of the cloth bag 10 through a pulse pipe 16, the pulse controller 17 is located on the surface of the pulse pipe 16, the collecting hopper 13 has an inverted conical structure and the inner wall is smooth, and the activated carbon adsorption layer 8 is composed of multiple layers of activated carbon fiber felt or granular activated carbon.

[0031] A groove is formed in the inner wall of the processing chamber 1, and an elastic support (rubber pad 12) is placed in the groove. The vibrating screen plate 11 is connected to the groove through the elastic support. On the one hand, the groove can position and protect the elastic support, preventing it from shifting or falling off during the vibration of the vibrating screen plate 11, thus ensuring its stability. On the other hand, the rubber pad 12, as an elastic support, can effectively buffer the vibration of the vibrating screen plate 11, reducing the impact of vibration on the processing chamber 1, reducing noise and equipment wear, and making the vibration of the vibrating screen plate 11 more stable, thus improving the dust filtration effect. The rubber pad 12 has good elasticity and wear resistance, can withstand the frequent vibration of the vibrating screen plate 11, and is not easily damaged. At the same time, the elasticity of the rubber pad 12 can be appropriately deformed according to the vibration amplitude of the vibrating screen plate 11, playing a good buffering role and ensuring the normal operation of the vibrating screen plate 11. Furthermore, the cost of the rubber pad 12 is relatively low, and it is easy to replace and maintain. Pulse backflushing device The device consists of an air pump 15, an air tank 14, and a pulse controller 17. The air pump 15 is connected to the air tank 14 via a pipe. The function of the air pump 15 is to compress air and deliver it to the air tank 14. The air tank 14 is used to store high-pressure air. The air tank 14 is connected to the top of the filter bag 10 via a pulse pipe 16. When the dust on the surface of the filter bag 10 accumulates to a certain level, the pulse controller 17 (located on the surface of the pulse pipe 16) controls the high-pressure air in the air tank 14 to pass through the pulse pipe. The pulse jet 16 instantly rushes towards the top of the filter bag 10, causing the bag 10 to shake violently, thereby shaking off the dust adhering to the surface of the filter bag 10 and achieving the dust removal operation. This design can precisely control the timing and force of the backflushing, effectively preventing the filter bag 10 from clogging and ensuring the efficient operation of the pulse backflushing filter bag 10 dust collector. The collection hopper 13 has an inverted conical structure with a smooth inner wall. The inverted conical structure facilitates the natural sliding of dust under gravity, preventing dust accumulation in the collection hopper 13. The smooth inner wall further reduces the friction between the dust and the inner wall of the collection hopper 13, allowing the dust to slide more smoothly into the discharge pipe 3, facilitating collection and discharge, improving dust collection efficiency, and also reducing the difficulty and frequency of cleaning the collection hopper 13. The activated carbon adsorption layer 8 is composed of multiple layers of activated carbon fiber felt or granular activated carbon. The multi-layer structure increases the total surface area of ​​the activated carbon, improving the adsorption capacity for harmful gases and fine dust in the gas. Activated carbon fiber felt has the characteristics of large specific surface area, fast adsorption speed and high adsorption capacity, while granular activated carbon has good mechanical strength and regeneration performance. Combining them can give full play to their respective advantages, and achieve deeper purification of the gas after filtration by the bag filter, ensuring that the final discharged gas meets higher quality standards and effectively reducing environmental pollution.

[0032] Working principle:

[0033] Dust-laden gas enters through inlet pipe 2. Electric valve 5 controls the intake volume and opening / closing. The gas first reaches vibrating screen plate 11. Vibrating motor 18 drives the screen plate to vibrate at high frequency to intercept large dust particles. Rubber pad 12 buffers and stabilizes the screen plate. Dust falls into collection hopper 13. The gas then enters pulse back-blowing bag filter 10. Dust adheres to the surface of the bag 10. Air pump 15 stores compressed air in air tank 14. Pulse controller 17 controls high-pressure air back-blowing to clean the bag 10. The remaining gas passes through an adsorption layer composed of multiple layers of activated carbon fiber felt or granular activated carbon, deeply purifying harmful gases and fine dust. The purified gas is discharged through outlet pipe 4. Gas detector 6 monitors compliance in real time. Collection hopper 13 collects dust, and discharge valve 7 is opened to discharge the gas.

[0034] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A dust treatment device for lithium carbonate production, characterized in that, include: The processing box (1) has an air inlet pipe (2) installed on one side of the top of the processing box (1), and an electric valve (5) is provided on the air inlet pipe (2); the bottom side of the processing box (1) is connected to a discharge pipe (3), and a discharge valve (7) is installed on the discharge pipe (3); the top of the other side of the processing box (1) is connected to an air outlet pipe (4), and a gas detector (6) is installed on the air outlet pipe (4); The processing box (1) is provided with a collection hopper (13), a vibrating screen plate (11), a pulse back-blowing bag dust collector (10) and an activated carbon adsorption layer (8) from bottom to top. The bottom of the collecting hopper (13) is connected to the discharge pipe (3); The vibrating screen plate (11) is installed in the processing box (1) by an elastic support member, and a vibrating motor (18) is provided below the vibrating screen plate (11); The pulse back-blowing bag filter (10) includes several bags (10), the open end of the bags (10) is fixed on a fixing frame (9), the fixing frame (9) is installed inside the processing box (1), and the pulse back-blowing device is connected to the top of the bags (10).

2. The dust treatment device for lithium carbonate production according to claim 1, characterized in that: The inner wall of the processing box (1) is provided with a groove, and the elastic support is located in the groove.

3. The dust treatment device for lithium carbonate production according to claim 2, characterized in that: The vibrating screen plate (11) is connected to the groove by an elastic support member, which is a rubber pad (12).

4. The dust treatment device for lithium carbonate production according to claim 1, characterized in that: The pulse backflush device includes an air pump (15), an air tank (14), and a pulse controller (17).

5. A dust treatment device for lithium carbonate production according to claim 4, characterized in that: The air pump (15) is connected to the air storage tank (14) through a pipe. The air storage tank (14) is connected to the top of the cloth bag (10) through a pulse pipe (16). The pulse controller (17) is located on the surface of the pulse pipe (16).

6. A dust treatment device for lithium carbonate production according to claim 1, characterized in that: The collecting hopper (13) has an inverted conical structure and a smooth inner wall.

7. A dust treatment device for lithium carbonate production according to claim 1, characterized in that: The activated carbon adsorption layer (8) is composed of multiple layers of activated carbon fiber felt or granular activated carbon.

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