Tea leaf dedusting device

Abstract

The utility model relates to tea processing technical field discloses a kind of tea dust removal device, comprising: processing component, including filter part, spraying part and processing box, filter part and spraying part are cooperatively installed and set in processing box, spraying pipe is suitable for spraying liquid to filter part, filter part is suitable for the dust removal of tea, processing box is suitable for providing space and excluding residual liquid for tea dust removal;Ventilation component, ventilation component is communicated with processing component, and ventilation component includes negative pressure fan, and negative pressure fan is suitable for sucking processing box internal gas, spraying part is installed in the opposite upstream of filter part along gas flow direction.Surfaces of tea leaf and impurity can be efficiently removed by combining processing component and ventilation component, form a complete tea dust removal system, the dust of tea leaf is removed.The spraying part is set in the upstream of filter part, so that the spraying liquid can pre-wet the tea leaf and preliminarily remove the large-particle dust, and then the filter part further fine dust removal, improve the overall cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of tea processing technology, specifically to a tea dust removal device. Background Technology

[0002] During tea production and processing, tea leaves naturally contain broken tea leaves and fine dust. Combined with vibrations, drops, and wind effects during production, tea dust is easily generated and released into the workshop environment. This not only threatens workshop hygiene and employee occupational health but also poses a risk of dust explosions and environmental emissions problems. Therefore, dust removal processing is necessary for tea production and processing.

[0003] The challenge in controlling tea dust lies in its fine particles and ease of dispersion, and the difficulty in balancing efficiency and cost with traditional dust removal equipment. High concentrations of dust generated during tea processing, if emitted directly without effective treatment, not only pollute the workshop air but may also pose safety hazards due to dust accumulation. Related technologies often utilize dry dust collectors such as cartridge filters for tea dust removal, but their dust removal efficiency is too low, and the dust removal effect is also difficult to meet environmental standards. Utility Model Content

[0004] In view of this, the present invention provides a dust removal device for tea leaves to solve the problem of low dust removal efficiency and poor effect in the existing technology during tea production.

[0005] This utility model provides a tea dust removal device, comprising: The processing assembly includes a filter section, a spray section, and a processing box. The filter section and the spray section are installed together in the processing box. The spray pipe is adapted to spray liquid onto the filter section. The filter section is adapted to remove dust from the tea leaves. The processing box is adapted to provide space for removing dust from the tea leaves and to remove residual liquid. A ventilation assembly is connected to the treatment assembly. The ventilation assembly includes a negative pressure fan, which is suitable for drawing in gas from inside the treatment chamber. The spray section is installed upstream of the filter section along the gas flow direction.

[0006] Beneficial Effects: By combining the processing components with the ventilation components, a complete tea dust removal system is formed, which can efficiently remove dust and impurities from the surface of tea leaves. The spray section is located upstream of the filter section, allowing the sprayed liquid to pre-wet the tea leaves and initially remove large dust particles. The filter section then further refines the dust removal, improving the overall cleaning effect. The processing box provides a sealed space to prevent dust from overflowing and polluting the environment, while facilitating the collection and discharge of waste liquid, ensuring a clean production environment. The negative pressure fan creates a stable airflow, directing dust and moisture flow, preventing dust accumulation inside the equipment, improving dust removal efficiency, and extending the equipment's service life.

[0007] In one optional embodiment, the filtration section includes a first processing layer and a second processing layer, and the spraying section includes a spray pipe. The first processing layer and the second processing layer are respectively provided with spray pipes at relatively upstream positions along the gas flow direction.

[0008] Beneficial effects: The dual filtration structure with first and second treatment layers allows for the removal of dust particles of different sizes in stages. The first treatment layer primarily intercepts larger particles, while the second layer further filters finer dust, resulting in more thorough dust removal. Each treatment layer is equipped with a corresponding spray pipe, allowing for adjustment of spray intensity and liquid volume according to different filtration needs, improving resource utilization and reducing water consumption. The layered design also makes maintenance more convenient; if a layer becomes clogged or damaged, it can be repaired individually without affecting overall operation, reducing downtime.

[0009] In one optional embodiment, the first processing layer includes at least one helical blade and a support column, the support column being installed inside the processing box, the length direction of the support column being non-perpendicular to the gas flow direction, and the helical blade being installed to the support column and adapted to rotate along the axial direction of the support column.

[0010] Beneficial effects: The rotating design of the spiral blades continuously agitates the tea leaves under the action of airflow, ensuring full contact between the tea leaf surface and the sprayed liquid, improving the uniformity of dust removal and preventing incomplete cleaning in certain areas. The inclined installation of the support column allows the tea leaves to move naturally under gravity, preventing accumulation and blockage. Simultaneously, the rotation of the spiral blades assists in the flow of the tea leaves, reducing manual intervention. It is suitable for various types of tea, has wide adaptability, and operates stably, reducing the risk of equipment jamming.

[0011] In one optional embodiment, the treatment box includes a liquid guide plate and a drain port. The liquid guide plate is inclinedly disposed on one side of the treatment box along the direction in which the sprayed liquid falls from the spray section, and the liquid guide plate encloses to form the drain port.

[0012] Beneficial effects: The inclined design of the guide plate allows the sprayed waste liquid to flow quickly to the drain outlet, preventing liquid stagnation that could lead to bacterial growth or equipment corrosion, thus improving hygiene standards. The compact structure of the drain outlet formed by the guide plate facilitates connection to an external drainage system, reducing the risk of liquid splashing or leakage and keeping the working environment dry and clean. This design simplifies the waste liquid recycling process and can be combined with a filtration system to achieve liquid recycling, reducing water consumption and meeting environmental protection production requirements.

[0013] In one optional embodiment, the ventilation assembly further includes an air inlet, an air outlet, and an exhaust outlet. The air inlet and the air outlet are respectively connected to the processing box. The air inlet is located on one side of the filter section, away from the gas flow direction, and the air outlet is located on the other side of the filter section. The air outlet is connected to one end of the negative pressure fan, and the other end of the negative pressure fan is connected to the exhaust outlet.

[0014] Beneficial effects: The rational layout of the air inlet, outlet, and exhaust sections creates a stable airflow circulation, ensuring that dust always flows in the predetermined direction and avoiding disorderly diffusion that affects dust removal efficiency. The efficient suction of the negative pressure fan creates a negative pressure environment inside the treatment chamber, preventing dust leakage and accelerating moisture removal to keep the equipment interior dry. The exhaust section can be connected to external purification equipment for further treatment of waste gas, ensuring that emissions meet environmental standards and reducing environmental pollution.

[0015] In one optional embodiment, the spray unit further includes a first liquid storage tank and a second liquid storage tank, the spray pipe is connected to the second liquid storage tank, and the first liquid storage tank is adapted to supply liquid to the second liquid storage tank.

[0016] Beneficial effects: The first storage tank, serving as the main water supply unit, can store a large amount of liquid, ensuring continuous operation over extended periods; the second storage tank, acting as a buffer unit, stably supplies the spray pipes, preventing water pressure fluctuations from affecting the spraying effect. The first storage tank can perform preliminary sedimentation or filtration, while the second storage tank provides cleaning liquid, reducing the risk of spray pipe clogging.

[0017] In one optional embodiment, the first liquid storage tank and the second liquid storage tank are separated by a filter partition. The first liquid storage tank is equipped with an inlet pipe, a valve and a switch. The switch is adapted to automatically open the valve to replenish liquid when the liquid level is lower than a preset value, and to discharge excess liquid through the overflow port when the liquid level is higher than the preset value.

[0018] Beneficial effects: The filter plate effectively separates impurities from the liquid, ensuring the cleanliness of the spray solution, preventing clogging of the spray pipes or contamination of tea leaves, and improving dust removal quality. The automatic liquid level control function reduces the need for manual monitoring; it automatically replenishes water when the level is too low and discharges water through the overflow port when the level is too high, ensuring stable system operation. It can be equipped with a water quality sensor to monitor liquid cleanliness in real time and prompt for replacement when necessary, extending the equipment's lifespan.

[0019] In one optional embodiment, the spray unit further includes a water pump, a water flow meter, and a water pressure gauge. The water pump is installed on the pipeline between the second liquid storage tank and the spray pipe, and is adapted to pressurize and deliver the liquid in the second liquid storage tank to the spray pipe. The water flow meter and the water pressure gauge are respectively installed on the upstream pipeline of the spray pipe, and are adapted to monitor the flow rate and pressure of the spray liquid in real time, and trigger an alarm when the flow rate or pressure is lower than a preset threshold.

[0020] Beneficial effects: The water pump provides stable water pressure, ensuring uniform liquid spraying from the spray pipes, avoiding localized dryness or over-wetting, and improving dust removal consistency. The water flow meter and water pressure gauge monitor spray parameters in real time; if an anomaly is detected, an alarm is immediately triggered, facilitating timely troubleshooting and reducing production interruptions. The automated monitoring system records historical data for optimizing spray strategies, adjusting water pressure and flow rate according to different tea types, achieving intelligent control.

[0021] In one optional embodiment, the system further includes an electrical control system, which includes a control panel. The control panel is equipped with a power-on button, a power-off button, a drain valve open button, a drain valve close button, and an emergency stop button. The electrical control system is suitable for controlling the operating status of the negative pressure fan, water pump, and valves. The control panel is equipped with status indicator lights, which use different colors to display the operating status of the equipment or fault alarms.

[0022] Beneficial effects: The electrical control system integrates equipment start / stop, parameter adjustment, and status monitoring functions, simplifying operation procedures and reducing the technical requirements for operators. The emergency stop button can quickly cut off power in emergencies, preventing equipment damage or safety accidents and improving production safety. Status indicator lights visually display operating status through color changes, facilitating quick problem identification and appropriate action, reducing downtime.

[0023] In one alternative embodiment, a safety vent is provided on the air inlet pipe of the ventilation assembly, and a rain cap is provided on the outlet end of the exhaust section; a transparent observation window and an inspection port are provided on the outside of the treatment box.

[0024] Beneficial effects: The safety relief diaphragm automatically ruptures when the pipeline pressure is abnormal, releasing pressure, preventing equipment explosion, and ensuring the safety of personnel and equipment. The rain cap prevents rainwater or foreign objects from entering the exhaust pipe, avoiding blockage or corrosion and ensuring long-term stable operation. The transparent observation window facilitates real-time monitoring of the tea dust removal process, allowing for timely problem detection; the inspection port design makes maintenance more convenient, reduces disassembly difficulty, and improves equipment maintainability. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the tea dust removal device of this utility model; Figure 2 This is a schematic diagram of the processing components of the tea dust removal device of this utility model; Figure 3 This is a schematic diagram of the ventilation component of the tea dust removal device of this utility model; Figure 4 This is a schematic diagram of the first processing layer of this utility model; Figure 5 This is a top view of the interior of the processing box of this utility model.

[0027] Explanation of reference numerals in the attached figures: 1. Processing components; 11. Filter section; 111. First processing layer; 1111. Spiral blades; 1112. Support column; 112. Second processing layer; 12. Spray section; 121. First liquid storage tank; 122. Spray pipe; 123. Second liquid storage tank; 13. Processing box; 131. Liquid guide plate; 132. Drain outlet; 2. Ventilation components; 21. Air inlet; 22. Air outlet; 23. Negative pressure fan; 24. Exhaust section; 3. Electrical control components. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] In the tea production and processing stage, the generation of tea dust is almost unavoidable. Tea itself contains a certain amount of broken tea leaves and fine dust, and during processing, vibration, drops, and wind further exacerbate this situation, causing a large amount of tea dust to be stirred up, forming gas containing a high concentration of tea dust. This gas permeates the workshop environment, firstly severely damaging the hygiene and deteriorating the production environment; secondly, long-term exposure to such an environment poses a significant threat to the occupational health of employees, potentially causing various respiratory diseases; more seriously, the accumulation of dust also poses a safety hazard of dust explosions, and the direct emission of untreated dust-laden gas also leads to a series of problems such as failing to meet environmental emission standards.

[0033] However, controlling tea dust is challenging because tea dust particles are extremely fine and highly dispersed, making it difficult for traditional dust removal equipment to balance efficiency with cost-effectiveness. High concentrations of dust generated during various tea processing steps, if released directly without effective treatment, would have disastrous consequences. It would not only pollute the workshop air, creating harsh working conditions for employees, but also increase the risk of safety accidents due to continuous dust accumulation. Current technologies for tea dust removal often employ dry dust collectors such as cartridge filters, but this method has significant drawbacks. Not only is the dust removal efficiency low and ineffective at removing dust, but its performance also falls far short of current stringent environmental standards, failing to meet the environmental requirements of actual production.

[0034] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0035] According to an embodiment of the present invention, a tea dust removal device is provided, comprising: a processing component 1, including a filter section 11, a spray section 12, and a processing box 13, wherein the filter section 11 and the spray section 12 are installed in the processing box 13, the spray pipe 122 is adapted to spray liquid onto the filter section 11, the filter section 11 is adapted to remove dust from the tea leaves, and the processing box 13 is adapted to provide space for removing dust from the tea leaves and to remove residual liquid; and a ventilation component 2, which is connected to the processing component 1, the ventilation component 2 including a negative pressure fan 23, the negative pressure fan 23 being adapted to draw in gas from inside the processing box 13, and the spray section 12 being installed upstream of the filter section 11 along the gas flow direction.

[0036] By combining the processing component 1 with the ventilation component 2, a complete tea dust removal system is formed, which can efficiently remove dust and impurities from the surface of tea leaves. The spray section 12 is located upstream of the filter section 11, allowing the spray liquid to pre-wet the tea leaves and initially remove large dust particles. The filter section 11 then further refines the dust removal, improving the overall cleaning effect. The processing box 13 provides a sealed space to prevent dust from overflowing and polluting the environment, while also facilitating the collection and discharge of waste liquid, ensuring a clean production environment. The negative pressure fan 23 creates a stable airflow, directing dust and moisture flow in a specific direction, preventing dust accumulation inside the equipment, improving dust removal efficiency, and extending the equipment's service life.

[0037] In some embodiments, combined with Figure 1 As shown, the filtration unit 11 includes a first treatment layer 111 and a second treatment layer 112, and the spraying unit 12 includes a spray pipe 122. The first treatment layer 111 and the second treatment layer 112 are respectively positioned upstream of each other along the gas flow direction, with the spray pipe 122 corresponding to each other. This dual filtration structure of the first treatment layer 111 and the second treatment layer 112 allows for the removal of dust particles of different sizes in stages. The first treatment layer 111 primarily intercepts larger particles, while the second treatment layer 112 further filters finer dust, resulting in more thorough dust removal. Each treatment layer is equipped with a corresponding spray pipe 122, allowing for adjustment of spray intensity and liquid volume according to different filtration requirements, improving resource utilization and reducing water consumption. The layered design makes maintenance more convenient; if a layer is blocked or damaged, it can be repaired individually without affecting overall operation, reducing downtime.

[0038] Specifically, the spray section 12 has a first layer of spray pipes at the inlet where air enters the treatment box, which is relatively downstream of the first treatment layer 111. The first treatment layer 111 has a double-layer configuration. The second treatment layer 112 adopts a dust-collecting packing ball plus spray method to filter, adsorb and spray water to wash away relatively fine tea dust particles. The water mist sprayed from the spray head forms a liquid film on the dust-collecting packing ball. When the dust-laden gas flows through the gaps in the packing layer, the dust begins to contact with the packing liquid film and merges and sticks together to become wastewater.

[0039] As one possible implementation, the first treatment layer 111 and the second treatment layer 112 can be designed to be detachable for easy periodic cleaning or replacement. Alternatively, the first treatment layer 111 can be a vibrating screen structure to enhance the dust separation effect through mechanical vibration; the second treatment layer 112 can be equipped with an electrostatic adsorption device to capture micron-sized dust using an electrostatic field, further improving cleanliness.

[0040] Furthermore, the first processing layer 111 includes at least one spiral blade 1111 and a support column 1112. The support column 1112 is installed inside the processing box 13, and its length direction is not perpendicular to the gas flow direction. The spiral blade 1111 is installed to the support column 1112 and is adapted to rotate along the axial direction of the support column 1112. The rotational design of the spiral blade 1111 causes the tea leaves to continuously tumble under the action of airflow, ensuring that the surface of the tea leaves fully contacts the sprayed liquid, improving the uniformity of dust removal, and avoiding incomplete cleaning in certain areas. The inclined installation of the support column 1112 allows the tea leaves to move naturally under the action of gravity, preventing accumulation and blockage. At the same time, the rotation of the spiral blade 1111 assists in the flow of tea leaves, reducing manual intervention. It is suitable for different types of tea, has wide adaptability, and operates stably, reducing the risk of equipment jamming.

[0041] As a feasible implementation, the pitch of the spiral blades 1111 is adjustable to adapt to the flowability of different tea leaves. For example, a smaller pitch can be used for tea leaves that are prone to clumping to enhance the agitation effect; a larger pitch can be used for loose tea leaves to improve conveying efficiency. In addition, an anti-stick coating can be applied to the surface of the support column 1112 to reduce tea residue and simplify cleaning.

[0042] In some embodiments, combined with Figure 2 As shown, the treatment tank 13 includes a liquid guide plate 131 and a drain port 132. The liquid guide plate 131 is inclinedly positioned on one side of the treatment tank 13 along the direction in which the sprayed liquid from the spray section 12 falls, forming the drain port 132. The inclined design of the liquid guide plate 131 allows the sprayed waste liquid to flow quickly to the drain port 132, preventing liquid stagnation that could lead to bacterial growth or equipment corrosion, thus improving hygiene standards. The drain port 132 formed by the liquid guide plate 131 has a compact structure, facilitating connection to an external drainage system, reducing the risk of liquid splashing or leakage, and keeping the working environment dry and clean. This design simplifies the waste liquid recycling process and can be combined with a filtration system to achieve liquid recycling, reducing water consumption and meeting environmental protection production requirements.

[0043] In some embodiments, combined with Figure 3As shown, the ventilation assembly 2 also includes an air inlet 21, an air outlet 22, and an exhaust 24. The air inlet 21 and air outlet 22 are respectively connected to the treatment chamber 13. The air inlet 21 is located on one side of the filter section 11, away from the gas flow direction, while the air outlet 22 is located on the other side of the filter section 11. The air outlet 22 is connected to one end of the negative pressure fan 23, and the other end of the negative pressure fan 23 is connected to the exhaust 24. The rational layout of the air inlet 21, air outlet 22, and exhaust 24 forms a stable airflow circulation, ensuring that dust always flows in the predetermined direction, avoiding disorderly diffusion that affects the dust removal effect. The efficient suction of the negative pressure fan 23 creates a negative pressure environment inside the treatment chamber 13, preventing dust leakage and accelerating moisture removal, keeping the inside of the equipment dry. The exhaust 24 can be connected to external purification equipment for further treatment of waste gas, ensuring that emissions meet environmental standards and reducing environmental pollution.

[0044] In some embodiments, combined with Figure 2 As shown, the spray unit 12 also includes a first liquid storage tank 121 and a second liquid storage tank 123. The spray pipe 122 is connected to the second liquid storage tank 123. The first liquid storage tank 121 is adapted to supply liquid to the second liquid storage tank 123. The first liquid storage tank 121 serves as the main water supply unit and can store a large amount of liquid to ensure continuous operation over a long period of time. The second liquid storage tank 123 serves as a buffer unit to stably supply liquid to the spray pipe 122 and avoid water pressure fluctuations affecting the spraying effect. The first liquid storage tank 121 can perform preliminary sedimentation or filtration, while the second liquid storage tank 123 provides clean liquid, reducing the risk of clogging of the spray pipe 122.

[0045] As an optional implementation, the spray unit 12 can be arranged in an array of multiple spray pipes 122, with adjustable spray angles to meet the dust removal needs of different types of tea. For example, for flake-shaped tea leaves, vertical spraying from top to bottom can be used; for granular tea leaves, inclined spraying can be used to enhance the covering effect. In addition, the diameter of the spray nozzles of the spray pipes 122 can be adjusted according to the dust load of the tea leaves. When there is more dust, a larger nozzle diameter is used to improve spraying efficiency, and when there is less dust, a smaller nozzle diameter is used to save water resources.

[0046] Furthermore, the first liquid storage tank 121 and the second liquid storage tank 123 are separated by a filter partition. The first liquid storage tank 121 is equipped with an inlet pipe, a valve, and a switch. The switch is adapted to automatically open the valve to replenish liquid when the liquid level is lower than a preset value, and to discharge excess liquid through the overflow port when the liquid level is higher than the preset value. The filter partition effectively separates impurities in the liquid, ensuring the cleanliness of the spray liquid, preventing clogging of the spray pipe 122 or contamination of tea leaves, and improving dust removal quality. The automatic liquid level control function reduces the need for manual monitoring. When the liquid level is too low, water is automatically replenished; when the liquid level is too high, water is discharged through the overflow port, ensuring stable system operation. A water quality detection sensor can be used to monitor the liquid cleanliness in real time and prompt replacement when necessary, extending the service life of the equipment.

[0047] It is worth noting that, in combination Figure 5 As shown, the spray unit 12 also includes a water pump, a flow meter, and a pressure gauge. The water pump is installed on the pipeline between the second liquid storage tank 123 and the spray pipe 122, suitable for pressurizing and transporting the liquid in the second liquid storage tank 123 to the spray pipe 122. The flow meter and pressure gauge are respectively installed on the upstream pipeline of the spray pipe 122, suitable for real-time monitoring of the flow rate and pressure of the sprayed liquid, and triggering an alarm when the flow rate or pressure is lower than a preset threshold. The water pump provides stable water pressure, ensuring that the spray pipe 122 sprays liquid evenly, avoiding local dryness or over-wetting, and improving dust removal consistency. The flow meter and pressure gauge monitor the spray parameters in real time. If an abnormality is detected, an alarm is triggered immediately, facilitating timely troubleshooting and reducing production interruptions. The automated monitoring system can record historical data for optimizing the spray strategy, adjusting water pressure and flow rate according to different tea types, and achieving intelligent control.

[0048] Specifically, the electrical control system includes a control panel equipped with power on / off buttons, a drain valve open button, a drain valve close button, and an emergency stop button. The system is suitable for controlling the operating status of the negative pressure fan 23, water pump, and valves. Status indicator lights on the control panel display the equipment's operating status or fault alarms using different colors. The electrical control system integrates equipment start / stop, parameter adjustment, and status monitoring functions, simplifying the operation process and reducing the technical requirements for operators. The emergency stop button can quickly cut off the power supply in case of emergencies, preventing equipment damage or safety accidents and improving production safety. The status indicator lights visually display the operating status through color changes, facilitating quick problem identification and appropriate measures, reducing downtime.

[0049] In some embodiments, combined with Figures 3 to 5 As shown, the air inlet 21 of the ventilation assembly 2 is equipped with a safety relief diaphragm, and the outlet end of the exhaust 24 is equipped with a rain cap; the outer side of the treatment box 13 is equipped with a transparent observation window and a maintenance port. The safety relief diaphragm automatically ruptures when the pipeline pressure is abnormal, releasing pressure and preventing equipment explosion, thus ensuring the safety of personnel and equipment. The rain cap prevents rainwater or foreign objects from entering the exhaust pipe, avoiding blockage or corrosion and ensuring long-term stable operation. The transparent observation window facilitates real-time monitoring of the tea dust removal process and timely detection of problems; the maintenance port design makes maintenance more convenient, reduces disassembly difficulty, and improves equipment maintainability.

[0050] When the tea dust removal device of this utility model is in operation, external air is first introduced through the air inlet 21, and a stable airflow is formed under the suction of the negative pressure fan 23. After the tea to be processed enters the processing box 13, the spray pipe 122 of the spray section 12 sprays liquid onto the tea, wetting the surface of the tea and initially removing large particles of dust. Subsequently, the tea enters the filter section 11 under the action of airflow and the tumbling action of the spiral blades 1111. The first processing layer 111 intercepts larger impurities, and the second processing layer 112 further adsorbs fine dust, completing fine dust removal. Waste liquid is collected through the liquid guide plate 131 and discharged through the drain port 132, while waste gas is purified and discharged through the exhaust section 24. The entire process is carried out in a closed environment, ensuring efficient dust removal while preventing dust overflow, thus achieving clean production.

[0051] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A dust removal device for tea leaves, characterized in that, include: The processing assembly (1) includes a filter section (11), a spray section (12), and a processing box (13). The filter section (11) and the spray section (12) are installed in the processing box (13). The spray section (12) is adapted to spray liquid onto the filter section (11). The filter section (11) is adapted to remove dust from the tea leaves. The processing box (13) is adapted to provide space for removing dust from the tea leaves and to remove residual liquid. Ventilation assembly (2), which is connected to the processing assembly (1), includes a negative pressure fan (23) adapted to draw gas from the processing box (13), and the spray section (12) is installed upstream of the filter section (11) along the gas flow direction.

2. The tea dust removal device according to claim 1, characterized in that, The filter section (11) includes a first processing layer (111) and a second processing layer (112), and the spray section (12) includes a spray pipe (122). The first processing layer (111) and the second processing layer (112) are respectively provided with the spray pipe (122) at a relatively upstream position along the gas flow direction.

3. The tea dust removal device according to claim 2, characterized in that, The first processing layer (111) includes at least one helical blade (1111) and a support column (1112). The support column (1112) is installed inside the processing box (13). The length direction of the support column (1112) is not perpendicular to the gas flow direction. The helical blade (1111) is installed on the support column (1112) and is adapted to rotate along the axial direction of the support column (1112).

4. The tea dust removal device according to claim 1, characterized in that, The treatment box (13) includes a liquid guide plate (131) and a drain port (132). The liquid guide plate (131) is inclinedly arranged on one side of the treatment box (13) along the direction of the spray liquid falling from the spray section (12). The liquid guide plate (131) surrounds and forms the drain port (132).

5. The tea dust removal device according to claim 1, characterized in that, The ventilation assembly (2) further includes an air inlet (21), an air outlet (22), and an exhaust outlet (24). The air inlet (21) and the air outlet (22) are respectively connected to the processing box (13). The air inlet (21) is located away from the gas flow direction and is located on one side of the filter (11). The air outlet (22) is located on the other side of the filter (11). The air outlet (22) is connected to one end of the negative pressure fan (23), and the other end of the negative pressure fan (23) is connected to the exhaust outlet (24).

6. The tea dust removal device according to claim 2, characterized in that, The spray unit (12) further includes a first liquid storage tank (121) and a second liquid storage tank (123). The spray pipe (122) and the second liquid storage tank (123) are connected. The first liquid storage tank (121) is adapted to provide liquid to the second liquid storage tank (123).

7. The tea dust removal device according to claim 6, characterized in that, The first liquid storage tank (121) and the second liquid storage tank (123) are separated by a filter partition. The first liquid storage tank (121) is equipped with an inlet pipe, a valve and a switch. The switch is adapted to automatically open the valve to replenish the liquid when the liquid level is lower than a preset value, and to discharge the excess liquid through the overflow port when the liquid level is higher than the preset value.

8. The tea dust removal device according to claim 7, characterized in that, The spray unit (12) also includes a water pump, a water flow meter and a water pressure gauge. The water pump is installed on the pipeline between the second liquid storage tank (123) and the spray pipe (122), and is suitable for pressurizing and transporting the liquid in the second liquid storage tank (123) to the spray pipe (122). The water flow meter and the water pressure gauge are respectively installed on the upstream pipeline of the spray pipe (122), and are suitable for real-time monitoring of the flow rate and pressure of the spray liquid, and triggering an alarm when the flow rate or pressure is lower than a preset threshold.

9. The tea dust removal device according to claim 8, characterized in that, It also includes an electrical control system, which includes a control panel. The control panel is equipped with a power-on button, a power-off button, a drain valve opening button, a drain valve closing button, and an emergency stop button. The electrical control system is suitable for controlling the operating status of the negative pressure fan (23), the water pump, and the valve. The control panel is equipped with status indicator lights, which display the operating status of the equipment or fault alarms through different colors.

10. The tea dust removal device according to claim 5, characterized in that, The ventilation assembly (2) has a safety explosion relief plate on the air inlet (21) pipe and a rain cap on the outlet end of the exhaust section (24); the processing box (13) has a transparent observation window and an inspection port on its outer side.

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