Gas-liquid entrainment dust cleaning device

Abstract

The embodiment of the invention provides a gas-liquid entrainment dust cleaning device which comprises a dust cleaning box, and an air inlet chamber, a dust cleaning chamber, a dewatering chamber and an air exhaust chamber are arranged in the dust cleaning box; the air inlet chamber and the dewatering chamber are arranged left and right and are separated by a first vertical partition plate; the dust cleaning chamber is located below the air inlet chamber and the dewatering chamber, and the first vertical partition plate extends downwards into the dust cleaning chamber; the dust removing chamber is located above the air inlet chamber, the air exhaust chamber is located above the air inlet chamber and the dewatering chamber, the dewatering chamber and the air exhaust chamber are separated through a transverse partition plate, a first air passing opening is reserved in the side, away from the air inlet chamber, of the transverse partition plate, and air sequentially passes through the air inlet chamber, the dust removing chamber, the dewatering chamber and the air exhaust chamber in a circulating mode. The dust cleaning device has the advantages that the structure is simplified, the cost is reduced, the dust removal efficiency is improved, and the dehydration effect is optimized.

Description

Technical Field

[0001] The present application relates to the technical field of air purification, and in particular to a gas-liquid suction dust scrubber. Background Art

[0002] A wet dust collector or wet dust scrubber is a mechanical device that uses liquid as a medium and gas as a carrier. It atomizes the liquid into tiny droplets under the action of mechanical force, and completes the purification process between the gas and liquid phases through multiple collisions at a certain speed. It completes the purification process while collecting the exhaust gas, and then discharges the purified air. In various enterprises such as metallurgy, coal, chemical industry, casting, power generation, building materials and refractory materials, dust-containing exhaust gas generated in the production process is usually discharged after dust removal by wet dust collectors. Therefore, wet dust collectors have broad application prospects in the field of industrial production. However, the structure of existing wet dust collectors is usually more complicated. The complex structure not only brings the problem of high manufacturing cost, but also has the disadvantages of high maintenance difficulty and high maintenance cost. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a gas-liquid entrainment dust scrubber that can solve the problems of high manufacturing cost, difficult maintenance and high cost caused by the complex structure of the existing wet dust collector.

[0004] An embodiment of the present application provides a gas-liquid suction dust scrubber, comprising a dust scrubber box, wherein an air inlet chamber, a dust scrubber chamber, a dehydration chamber and an exhaust chamber are arranged inside the dust scrubber box; the air inlet chamber and the dehydration chamber are arranged on the left and right, and the two are separated by a first vertical partition; the dust scrubber chamber is located below the air inlet chamber and the dehydration chamber, and the first vertical partition extends downward into the dust scrubber chamber; the exhaust chamber is located above the air inlet chamber and the dehydration chamber, the dehydration chamber and the exhaust chamber are separated by a transverse partition, and a first air outlet is reserved on the side of the transverse partition away from the air inlet chamber, and air flows through the air inlet chamber, the dust scrubber chamber, the dehydration chamber and the exhaust chamber in sequence.

[0005] In the above implementation process, the gas-liquid entrainment dust scrubber of this embodiment has at least the following beneficial effects:

[0006] 1. Simplified structure and reduced cost: By designing the layout of the air inlet chamber, dust cleaning chamber, dehydration chamber and exhaust chamber, and using the first vertical partition and the horizontal partition to distinguish functions, the structure of the dust cleaner is relatively simple and clear, which helps to reduce manufacturing costs. The simplified structure also means that during installation, commissioning and maintenance, the operation is easier, reducing the difficulty and cost of maintenance.

[0007] 2. Improved dust removal efficiency: The air is in direct contact with the washing water in the dust washing chamber, and the dust can quickly dissolve into the water, achieving preliminary dust removal. The turbulence formed by the air passing through the water bypassing the first vertical partition, and the subsequent rotation in the dehydration chamber, both enhance the mixing and contact of the air and the washing water, so that more dust can be effectively removed, improving the dust removal efficiency.

[0008] 3. Optimization of dehydration effect: In the dehydration chamber, the centrifugal force generated by the high-speed rotation of the air helps to throw the carried droplets to the partition, achieving effective dehydration. The dehydrated air is discharged through the first air outlet, ensuring the dryness of the discharged air and avoiding secondary pollution.

[0009] In some embodiments, a first bending edge is provided on the bottom side of the first vertical partition, and the first bending edge is inclined and bent from top to bottom toward the side where the air inlet chamber is located.

[0010] In the above embodiment, when the air rushes into the dust washing chamber from the air inlet chamber, it encounters the first vertical partition and the first bent edge on its bottom side, and the air is guided and produces a stronger turbulence effect. This inclined bent edge design can more effectively change the direction and speed of air flow, making the air flow in the dust washing chamber more turbulent and sufficient, thereby increasing the contact area and contact time between the air and the washing water, which helps to improve the dust removal efficiency.

[0011] In some embodiments, a second vertical partition is provided in the dust cleaning chamber, and the second vertical partition extends upward into the dehydration chamber. The second vertical partition is located below the transverse partition, and a second air outlet is formed between the second vertical partition and the transverse partition. The air in the dehydration chamber can pass through the second air outlet and the first air outlet in sequence and enter the exhaust chamber.

[0012] In the above embodiment, the second vertical partition is provided to improve the dust removal rate of the gas. In addition, the second vertical partition is provided below the transverse partition, which can guide the washed gas to impact the transverse partition upward to form a swirl, so that the gas can rotate at a high speed in the dehydration chamber, so that the droplets in the gas can obtain a greater centrifugal force to be thrown out smoothly. Therefore, the provision of the second vertical partition is also conducive to the dehydration of the washed gas.

[0013] In some embodiments, the second vertical partition is inclined from bottom to top toward the side where the first vertical partition is located.

[0014] In the above embodiment, the second vertical partition which is inclined from bottom to top toward the side where the first vertical partition is located is more conducive to guiding the formation of a vortex on the left side of the second vertical partition. In addition, it is also conducive to guiding the gas to flow toward the side where the first vertical partition is located, and is more conducive to forming a cyclone at the corner where the first vertical partition and the horizontal partition are connected.

[0015] In some embodiments, a connecting rib is disposed on the inner wall of the dust cleaning box, and two ends of the connecting rib are respectively connected to the second vertical partition and the horizontal partition.

[0016] In the above embodiment, the connecting ribs, as a reinforcement structure inside the dust washing box, can effectively connect the second vertical partition and the transverse partition together to form a more stable overall structure. This design helps to resist various external forces and vibrations that the dust washing box may be subjected to during operation, thereby improving the stability and durability of the entire device. In addition, the existence of the connecting ribs can also optimize the stress distribution inside the dust washing box. When the dust washing box is subjected to external forces, the connecting ribs can disperse the stress to a larger area, thereby avoiding structural damage caused by excessive local stress. This design helps to extend the service life of the dust washing box and reduce downtime caused by structural damage.

[0017] In some embodiments, a side of the transverse partition close to the first air outlet is provided with a second bent edge bent downward.

[0018] In the above embodiment, in the dehydration chamber, the gas rushing upward will hit the top diaphragm, where it will contact the inertial force, and the heavier droplets and dust will hit and adhere to the bottom of the diaphragm. The lighter gas will be tilted downward after passing through the second air outlet, and then flow out upward through the first air outlet under the guidance of the side wall of the dust cleaning box. In this process, the diaphragm plays a role in intercepting droplets and dust, achieving further dust removal and water removal effects. Droplets will gather under the diaphragm. In this embodiment, a downward second bent edge is set on the edge of the diaphragm, which can guide the droplets gathered on the diaphragm to fall downward, so as to reduce the problem of droplets being carried upward by the airflow at the edge of the diaphragm close to the first air outlet.

[0019] In some embodiments, a deflector demister is provided in the exhaust chamber.

[0020] In the above embodiment, the deflector demister arranged in the exhaust chamber can efficiently separate the droplets and impurities in the gas, and its separation efficiency is generally between 90% and 99.9%, which helps to improve the dryness and cleanliness of the air finally discharged, and significantly reduces the pollution problem in the process of industrial waste gas emission, which helps to protect the environment and reduce the negative impact on human health and the ecosystem.

[0021] In some embodiments, an exhaust port connected to the exhaust chamber is provided on the top of the dust cleaning box, and the exhaust port is connected to an exhaust fan.

[0022] In the above embodiment, the exhaust fan is set up to extract the gas in the exhaust chamber through the exhaust port, so that negative pressure is formed in the exhaust chamber, and then the external gas can flow freely into the air inlet chamber, and then pass through the dust cleaning chamber and the dehydration chamber in sequence to replenish the exhaust chamber. Therefore, the exhaust fan is used to drive the air flow and is the key driving force in the entire dust removal process.

[0023] In some embodiments, it also includes an electronically interconnected liquid level meter, a drain valve and a water supply valve, wherein the drain valve is installed at the bottom of the dust washing chamber, the water supply valve is installed on a water supply pipe, and the water supply pipe extends to the dust washing box; the liquid level meter is used to detect the water level in the dust washing box.

[0024] In the above embodiment, the control system determines whether the current water level needs to be adjusted according to the preset water level threshold. If the water level is lower than the lower threshold, automatic water supply is required; if the water level is higher than the upper threshold, automatic sewage discharge is required. Specifically, according to the liquid level signal fed back by the liquid level meter, when the water level is lower than the lower threshold, the control system sends an instruction to the water supply valve to open and adjust the water supply. As the water supply is in progress, the liquid level meter continues to detect the change in water level. When the water level reaches the preset water supply target value, the control system closes the water supply valve and stops the water supply. When the water level is higher than the upper threshold, the control system sends an instruction to the sewage valve to open and discharge sewage and impurities. As the sewage discharge is in progress, the liquid level meter continues to detect the change in water level. When the water level drops to the preset sewage discharge target value, the control system closes the sewage valve and stops sewage discharge. In summary, the above embodiments realize the automatic control of the liquid level in the dust cleaning box through the electronically interconnected liquid level meter, sewage valve and water supply valve, thereby improving the automation level of the entire system. The automatic water supply and sewage discharge function can make real-time adjustments according to the water level changes in the dust cleaning box, avoiding the problem of dust removal effect or efficiency being affected by too high or too low water level.

[0025] In some embodiments, it also includes a liquid level pipe arranged on one side of the dust cleaning box, the bottom end of the liquid level pipe is connected to the inside of the dust cleaning box, and the liquid level meter is installed at the liquid level.

[0026] In the above embodiment, the liquid level tube serves as an independent measuring channel, and its internal environment is relatively stable and is less affected by the fluid fluctuations and high-speed airflow changes in the dust cleaning box, thereby improving the accuracy of liquid level detection and providing protection for the liquid level meter.

[0027] In some embodiments, the dust cleaning box includes a box body and a lower cone hopper connected to the bottom of the box body, and the dust cleaning chamber extends upward from the lower cone hopper into the box body.

[0028] The box body is preferably a square box, which can provide sufficient space inside for gas processing. The lower cone bucket connected to the bottom of the box body is designed to help precipitate and accumulate solid particles and sewage generated during the dust cleaning process. The conical structure of the lower cone bucket allows the particles and sewage to flow to the bottom more easily, which is convenient for subsequent discharge and treatment.

[0029] In some embodiments, a water stabilizing grid plate is provided in the lower cone bucket.

[0030] In the actual working process, it is necessary to ensure that the bottom end of the first vertical partition can always be immersed in water to ensure that the gas can pass into the water and undergo the washing process. The water stabilizing grid plate prevents the internal liquid level from fluctuating violently and causing the liquid level to be lower than the bottom end of the first vertical partition, thereby preventing the escape of dust-containing gas that has not been repeatedly washed.

[0031] In some embodiments, a central vertical partition is provided inside the box body, and two sides of the central vertical partition form a ventilation area respectively, and each ventilation area includes an independent air inlet chamber and a dehydration chamber.

[0032] In the above embodiment, a central vertical partition is provided inside the box body, and two ventilation areas are formed on both sides. Providing one more ventilation area can double the processing air volume, thereby achieving the purpose of improving dust removal efficiency. In specific implementation, the size of the box body can be increased to provide more space for processing air. The bottoms of the two ventilation areas can share the same dust cleaning chamber; and the tops of the two ventilation areas can share an exhaust fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a front view of one embodiment of the gas-liquid suction dust scrubber described in the embodiment of the present application;

[0035] Figure 2 for Figure 1 A side view of the gas-liquid entrainment scrubber shown;

[0036] Figure 3 for Figure 1 A cross-sectional view of a gas-liquid entrainment scrubber as shown;

[0037] Figure 4This is a front view of another embodiment of the gas-liquid suction dust scrubber described in an embodiment of the present application.

[0038] in,

[0039] 1. Dust-cleaning box; 11. Box body; 111. First vertical partition; 1111. First bending edge; 112. Horizontal partition; 1121. Second bending edge; 113. Second vertical partition; 114. Connecting ribs; 115. Observation window; 12. Lower cone bucket; 13. Air inlet chamber; 131. Air inlet; 14. Dust-cleaning chamber; 15. Dehydration chamber; 16. Exhaust chamber; 2. Exhaust fan; 3. Water supply valve; 31. Water supply pipe; 4. Drain valve; 5. Liquid level gauge; 51. Liquid level pipe; 6. Baffle demister; 61. demister bracket; 62. Inspection cover; 7. Water stabilizing grid plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0041] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] A wet dust collector or wet dust scrubber is a mechanical device that uses liquid as a medium and gas as a carrier. It atomizes the liquid into tiny droplets under the action of mechanical force, and completes the purification process between the gas and liquid phases through multiple collisions at a certain speed. It completes the purification process while collecting the exhaust gas, and then discharges the purified air. In various enterprises such as metallurgy, coal, chemical industry, casting, power generation, building materials and refractory materials, dust-containing exhaust gas generated in the production process is usually discharged after dust removal by wet dust collectors. Therefore, wet dust collectors have broad application prospects in the field of industrial production. However, the structure of existing wet dust collectors is usually more complicated. The complex structure not only brings the problem of high manufacturing cost, but also has the disadvantages of high maintenance difficulty and high maintenance cost.

[0043] In order to overcome the above technical problems, refer to Figure 1-3The embodiment of the present application provides a gas-liquid suction dust scrubber, including a dust scrubber box 1, wherein an air inlet chamber 13, a dust scrubber chamber 14, a dehydration chamber 15 and an exhaust chamber 16 are arranged inside the dust scrubber box 1; the air inlet chamber 13 and the dehydration chamber 15 are arranged left and right, and the two are separated by a first vertical partition 111; the dust scrubber chamber 14 is located below the air inlet chamber 13 and the dehydration chamber 15, and the first vertical partition 111 extends downward into the dust scrubber chamber 14; the exhaust chamber 16 is located above the air inlet chamber 13 and the dehydration chamber 15, and the dehydration chamber 15 and the exhaust chamber 16 are separated by a transverse partition 112, and a first air outlet is reserved on the side of the transverse partition 112 away from the air inlet chamber 13, and air flows through the air inlet chamber 13, the dust scrubber chamber 14, the dehydration chamber 15 and the exhaust chamber 16 in sequence.

[0044] An air inlet 131 connected to the air inlet chamber 13 is provided on one side of the dust cleaning box 1 .

[0045] The gas-liquid entrainment dust scrubber of this embodiment adopts the wet dust removal principle to remove dust. When in use, water for dust removal is injected into the dust scrubber box 1, and the water level overflows the bottom end of the first vertical partition 111. During operation, air enters from the air inlet chamber 13 and rushes downward into the dust washing water in the dust washing chamber 14. The air contacts the washing water and the dust in the air dissolves into the water. More importantly, after the air bypasses the first vertical baffle 111, a vortex is formed. The vortex drives the washing water to rotate. The rotating air and the washing water are fully in contact, so that more dust in the air can be dissolved into the washing water, achieving an effective dust removal effect. Then the air enters the dehydration chamber 15 upward. In the dehydration chamber 15, the upward air will rotate under the guidance of the first vertical baffle 111 and the transverse baffle 112. The high-speed rotating gas obtains centrifugal force, and the droplets brought out of the dust washing chamber 14 are thrown to the first vertical baffle 111 and the transverse baffle 112. The water collected on the plates will flow back downward into the dust washing chamber 14, and the dehydrated air will enter the dehydration chamber 15 through the first air outlet and then be discharged.

[0046] The gas-liquid entrainment dust scrubber of this embodiment has at least the following beneficial effects:

[0047] 1. Simplified structure and reduced cost: By designing the layout of the air inlet chamber 13, the dust cleaning chamber 14, the dehydration chamber 15 and the exhaust chamber 16, and using the first vertical partition 111 and the horizontal partition 112 to distinguish functions, the structure of the dust cleaner is relatively simple and clear, which helps to reduce manufacturing costs. The simplified structure also means that during installation, commissioning and maintenance, the operation is easier, reducing the difficulty and cost of maintenance.

[0048] 2. Improved dust removal efficiency: The air is in direct contact with the washing water in the dust washing chamber 14, and the dust can be quickly dissolved in the water, achieving preliminary dust removal. The bypass formed by the air bypassing the first vertical partition 111 and the subsequent rotation in the dehydration chamber 15 enhance the mixing and contact of the air and the washing water, so that more dust can be effectively removed, thereby improving the dust removal efficiency.

[0049] 3. Optimization of dehydration effect: In the dehydration chamber 15, the centrifugal force generated by the high-speed rotation of the air helps to throw the carried droplets toward the partition, achieving effective dehydration. The dehydrated air is discharged through the first air outlet, ensuring the dryness of the discharged air and avoiding secondary pollution.

[0050] Optionally, the dust cleaning box 1 and the first vertical partition 111, the transverse partition 112 and other structures therein are made of ordinary carbon steel, which has the advantages of good reliability and low cost.

[0051] The first vertical partition 111, the transverse partition 112, etc. are flat plates or bent plate structures without complex curved structures, which makes processing simpler and reduces processing costs.

[0052] In some embodiments, a first bending edge 1111 is provided at a bottom side of the first vertical partition 111 , and the first bending edge 1111 is inclined and bent from top to bottom toward the side where the air inlet chamber 13 is located.

[0053] In the above embodiment, when the air rushes into the dust washing chamber 14 from the air inlet chamber 13, it encounters the first vertical partition 111 and the first bent edge 1111 on its bottom side, and the air is guided and produces a stronger turbulence effect. This inclined bent edge design can more effectively change the direction and speed of air flow, making the air flow in the dust washing chamber 14 more turbulent and sufficient, thereby increasing the contact area and contact time between the air and the washing water, which helps to improve the dust removal efficiency.

[0054] In some embodiments, a second vertical partition 113 is provided in the dust cleaning chamber 14, and the second vertical partition 113 extends upward into the dehydration chamber 15. The second vertical partition 113 is located below the transverse partition 112, and a second air outlet is formed between the second vertical partition 113 and the transverse partition 112. The air in the dehydration chamber 15 can pass through the second air outlet and the first air outlet in sequence and enter the exhaust chamber 16.

[0055] In the above embodiment, if Figure 3As shown, after the airflow passes downward around the first vertical baffle 111, it drives the dust-cleaning water to rotate, forming a vortex A on the right side of the first vertical baffle 111. The high-speed rotating vortex A fully contacts the gas and washes the gas once; under the influence of the fluctuation of the vortex A, the dust-cleaning water on the left side of the second vertical baffle 113 also rotates, forming a vortex B on the left side of the second vertical baffle 113, and the gas fully contacts the high-speed rotating vortex B again, washing the gas twice, further improving the dust removal rate of the gas. The dust content in the gas after two washes is already negligible. Therefore, the setting of the second vertical baffle 113 of this solution can achieve the effect of improving the dust removal rate of the gas.

[0056] In addition, the second vertical baffle 113 is arranged below the transverse baffle 112, which can guide the washed gas to impact the transverse baffle 112 upward to form a swirl, so that the gas can rotate at a high speed in the dehydration chamber 15, so that the droplets in the gas can obtain a greater centrifugal force to be thrown out smoothly, that is, Figure 3 The cyclone C is formed at the corner where the first vertical partition 111 and the transverse partition 112 are connected. Therefore, the arrangement of the second vertical partition 113 is also beneficial to the dehydration of the scrubbed gas.

[0057] In some embodiments, the second vertical partition 113 is inclined from bottom to top toward the side where the first vertical partition 111 is located.

[0058] In the above embodiment, referring to Figure 3 The second vertical partition 113, which is inclined from bottom to top toward the side where the first vertical partition 111 is located, is more conducive to guiding the formation of a vortex B on the left side of the second vertical partition 113. In addition, it is also conducive to guiding the gas to flow toward the side where the first vertical partition 111 is located, and is more conducive to forming a cyclone C at the corner where the first vertical partition 111 and the horizontal partition 112 are connected.

[0059] In some embodiments, a connecting rib 114 is disposed on the inner wall of the dust cleaning box 1 , and two ends of the connecting rib 114 are respectively connected to the second vertical partition 113 and the horizontal partition 112 .

[0060] In the above embodiment, the connecting ribs 114, as a reinforcement structure inside the dust box 1, can effectively connect the second vertical partition 113 and the transverse partition 112 together to form a more stable overall structure. This design helps to resist various external forces and vibrations that the dust box 1 may be subjected to during operation, thereby improving the stability and durability of the entire device. In addition, the existence of the connecting ribs 114 can also optimize the stress distribution inside the dust box 1. When the dust box 1 is subjected to external forces, the connecting ribs 114 can disperse the stress to a larger area, thereby avoiding structural damage caused by excessive local stress. This design helps to extend the service life of the dust box 1 and reduce downtime caused by structural damage.

[0061] In some embodiments, a side of the transverse partition 112 close to the first air outlet is provided with a second bent edge 1121 bent downward.

[0062] Specifically, refer to Figure 3 In the dehydration chamber 15, the gas rushes upward and hits the top diaphragm 112, where it contacts the inertial force. The heavier droplets and dust will hit and adhere to the bottom of the diaphragm 112. The lighter gas passes through the second air outlet and is tilted downward. Then, it flows upward through the first air outlet under the guidance of the side wall of the dust cleaning box 1, forming Figure 3 In this process, the diaphragm 112 plays a role in intercepting droplets and dust, achieving a further dust and water removal effect. The droplets will gather under the diaphragm 112. In this embodiment, a downward second bent edge is set at the edge of the diaphragm 112 to guide the droplets gathered on the diaphragm 112 to fall downward, so as to reduce the problem of the droplets being carried upward by the airflow at the edge of the diaphragm 112 close to the first air outlet.

[0063] In some embodiments, a deflector demister 6 is provided in the exhaust chamber 16 .

[0064] The working principle of the baffle demister 6 is mainly based on the principle of water film separation. When the flue gas with droplets enters the baffle demister 6, the droplets will be affected by the tortuous channel and the baffle, the streamlines will be deflected and centrifugal force will be generated, so that the droplets will be separated. Some droplets will hit the demister blades and be captured, while some droplets will adhere to the wall of the plate to form a water film, slowly flow down and gather into larger droplets and fall down, finally achieving gas-water separation.

[0065] The deflector demister 6 arranged in the exhaust chamber 16 of the above embodiment can efficiently separate the droplets and impurities in the gas, and its separation efficiency is usually between 90% and 99.9%, which helps to improve the dryness and cleanliness of the air finally discharged, and significantly reduces the pollution problem in the process of industrial waste gas emission, which helps to protect the environment and reduce the negative impact on human health and the ecosystem.

[0066] Optionally, a demister bracket 61 is provided on the side wall of the exhaust chamber 16 , and the deflector demister 6 is detachably mounted on the demister bracket 61 .

[0067] An inspection port for aligning the deflector demister 6 is provided on the side wall of the dust cleaning box 1, and an inspection cover 62 is installed on the inspection port. By opening the inspection cover 62, the deflector demister 6 inside can be disassembled and inspected.

[0068] In some embodiments, an exhaust port connected to the exhaust chamber 16 is provided on the top of the dust cleaning box 1, and the exhaust port is connected to the exhaust fan 2.

[0069] The exhaust fan 2 is set up to extract the gas in the exhaust chamber 16 through the exhaust port, so that a negative pressure is formed in the exhaust chamber 16, so that the external gas can flow freely into the air inlet chamber 13, and then pass through the dust washing chamber 14 and the dehydration chamber 15 in sequence before replenishing the exhaust chamber 16. Therefore, the exhaust fan 2 is used to drive the air flow and is the key driving force in the entire dust removal process.

[0070] During implementation, according to actual conditions, the exhaust fan 2 can be directly installed on the top of the dust cleaning box 1, or the exhaust fan 2 can be installed on the ground or other positions, and the exhaust port and the exhaust fan 2 can be connected through a ventilation pipe.

[0071] In some embodiments, it also includes an electronically interconnected liquid level meter 5, a drain valve 4 and a water supply valve 3, wherein the drain valve is installed at the bottom of the dust washing chamber 14, and the water supply valve 3 is installed on a water supply pipe 31, and the water supply pipe 31 extends to the dust washing box 1; the liquid level meter 5 is used to detect the water level in the dust washing box 1.

[0072] The liquid level meter 5 is installed in the dust washing box 1, and is used to detect and display the water level height in the dust washing box 1 in real time. Through precise measurement, the liquid level meter 5 can feed back the water level information to the control system, providing data support for automatic water supply and sewage discharge. The sewage valve 4 is installed at the bottom of the dust washing chamber 14, and is used to discharge sewage and impurities in the dust washing chamber 14 when necessary. Through the electronic control system, the opening and closing of the sewage valve 4 can be remotely controlled to realize the automatic sewage discharge function. The water supply valve 3 is installed on the water supply pipe 31, and the water supply pipe 31 extends into the dust washing box 1. The water supply valve 3 is used to control the opening and closing of the water supply pipe 31, so as to adjust the water level in the dust washing box 1. Through the electronic control system, the opening degree and duration of the water supply valve 3 can be accurately controlled to realize the automatic water supply function.

[0073] The drain valve 4 may be an electric drain valve or a pneumatic drain valve or other automatically controllable valve, and the water supply valve 3 may be an electric water supply valve or a pneumatic water supply valve or other automatically controllable valve.

[0074] Based on the above embodiment scheme, the control system determines whether the current water level needs to be adjusted according to the preset water level threshold. If the water level is lower than the lower limit threshold, automatic water supply is required; if the water level is higher than the upper limit threshold, automatic sewage discharge is required. Specifically, according to the liquid level signal fed back by the liquid level meter 5, when the water level is lower than the lower limit threshold, the control system sends an instruction to the water supply valve 3 to open it and adjust the water supply. As the water supply proceeds, the liquid level meter 5 continues to detect water level changes. When the water level reaches the preset water supply target value, the control system closes the water supply valve 3 and stops water supply. When the water level is higher than the upper limit threshold, the control system sends an instruction to the sewage valve 4 to open it and discharge sewage and impurities. As the sewage discharge proceeds, the liquid level meter 5 continues to detect water level changes. When the water level drops to the preset sewage discharge target value, the control system closes the sewage valve 4 and stops sewage discharge.

[0075] In summary, the above embodiment realizes automatic control of the liquid level in the dust cleaning box 1 through the electronically interconnected liquid level meter 5, drain valve 4 and water supply valve 3, thereby improving the automation level of the entire system. The automatic water supply and drain function can be adjusted in real time according to the water level change in the dust cleaning box 1, avoiding the problem of affecting the dust removal effect or efficiency due to too high or too low water level.

[0076] Optionally, the liquid level meter 5 is a float liquid level meter 5, an ultrasonic liquid level meter 5 or a photoelectric liquid level meter 5. Other liquid level meters 5 that can realize the liquid level monitoring function are also considered within the scope of this solution.

[0077] In some embodiments, it further includes a liquid level pipe 51 disposed on one side of the dust cleaning box 1 , the bottom end of the liquid level pipe 51 is connected to the interior of the dust cleaning box 1 , and the liquid level meter 5 is installed at the liquid level.

[0078] The bottom end of the liquid level tube 51 is connected to the dust washing box 1. The liquid level meter 5 indirectly reflects the water level in the dust washing box 1 by measuring the height of the liquid level in the liquid level tube 51. When the water level in the dust washing box 1 changes, the liquid level in the liquid level tube 51 will also rise or fall accordingly. The liquid level meter 5 senses this change and converts it into an electrical signal output, thereby realizing real-time monitoring of the water level in the dust washing box 1.

[0079] In the above embodiment, the liquid level tube 51 serves as an independent measuring channel, and its internal environment is relatively stable and is less affected by the fluid fluctuations and high-speed airflow changes in the dust cleaning box 1, thereby improving the accuracy of liquid level detection and providing protection for the liquid level meter 5.

[0080] In some embodiments, the dust cleaning box 1 includes a box body 11 and a lower cone hopper 12 connected to the bottom of the box body 11 , and the dust cleaning chamber 14 extends upward from the lower cone hopper 12 into the box body 11 .

[0081] The box body 11 is preferably a square box, which can provide sufficient space inside for gas processing. The lower cone hopper 12 connected to the bottom of the box body 11 is designed to be shaped to help precipitate and accumulate solid particles and sewage generated during the dust cleaning process. The conical structure of the lower cone hopper 12 allows the particles and sewage to flow to the bottom more easily, which is convenient for subsequent discharge and treatment.

[0082] Optionally, an observation window 115 is provided on one side of the box body 11 .

[0083] In some embodiments, a water stabilizing grid plate 7 is provided in the lower cone hopper 12 .

[0084] In the actual working process, it is necessary to ensure that the bottom end of the first vertical partition 111 can always be immersed in water to ensure that the gas can pass into the water and undergo the washing process. The water stabilizing grid plate prevents the internal liquid level from fluctuating violently and causing the liquid level to be lower than the bottom end of the first vertical partition 111, thereby preventing the escape of dust-containing gas that has not been repeatedly washed.

[0085] Reference Figure 4 In some embodiments, a central vertical partition is provided inside the box body 11, and two sides of the central vertical partition form a ventilation area respectively, and each ventilation area includes an independent air inlet chamber 13 and a dehydration chamber 15.

[0086] Specifically, a central vertical partition is provided inside the box body 11, and two ventilation areas are formed on both sides. Providing one more ventilation area can double the processing air volume, thereby achieving the purpose of improving the dust removal efficiency. In specific implementation, the size of the box body 11 can be increased to provide more space for processing air. The bottoms of the two ventilation areas can share the same dust cleaning chamber 14; and the tops of the two ventilation areas can share an exhaust fan.

[0087] In specific implementation, two identical box bodies 11 can be spliced ​​together side by side to form the above-mentioned box body 11 with two ventilation areas, and the bottom is connected by a larger lower cone hopper 12, and the top is connected by a larger exhaust fan 2.

[0088] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0089] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0090] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A gas-liquid entrainment dust scrubber, characterized in that: The dust washing box comprises an air inlet chamber, a dust washing chamber, a dehydration chamber and an exhaust chamber; the air inlet chamber and the dehydration chamber are arranged on the left and right, and the two are separated by a first vertical partition; the dust washing chamber is located below the air inlet chamber and the dehydration chamber, and the first vertical partition extends downward into the dust washing chamber; The exhaust chamber is located above the air inlet chamber and the dehydration chamber, the dehydration chamber and the exhaust chamber are separated by a transverse partition, and a first air outlet is reserved on the side of the transverse partition away from the air inlet chamber, and air flows through the air inlet chamber, the dust cleaning chamber, the dehydration chamber and the exhaust chamber in sequence.

2. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: A first bending edge is provided on the bottom side of the first vertical partition plate, and the first bending edge is inclined and bent from top to bottom toward the side where the air inlet chamber is located.

3. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: A second vertical partition is provided in the dust washing chamber, and the second vertical partition extends upward into the dehydration chamber. The second vertical partition is located below the transverse partition, and a second air outlet is formed between the second vertical partition and the transverse partition. The air in the dehydration chamber can pass through the second air outlet and the first air outlet in sequence and enter the exhaust chamber.

4. The gas-liquid entrainment dust scrubber according to claim 3, characterized in that: The second vertical partition is inclined from bottom to top toward the side where the first vertical partition is located.

5. The gas-liquid entrainment dust scrubber according to claim 3, characterized in that: The inner wall of the dust cleaning box is provided with a connecting rib, and the two ends of the connecting rib are respectively connected to the second vertical partition and the horizontal partition.

6. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: A second bending edge bending downward is provided on one side of the transverse partition close to the first air outlet.

7. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: A deflector demister is arranged in the exhaust chamber.

8. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: An exhaust port communicating with the exhaust chamber is arranged on the top of the dust cleaning box, and the exhaust port is connected with an exhaust fan.

9. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: It also includes an electronically interconnected liquid level meter, a drain valve and a water supply valve. The drain valve is installed at the bottom of the dust washing chamber, and the water supply valve is installed on a water supply pipe. The water supply pipe extends to the dust washing box. The liquid level meter is used to detect the water level in the dust washing box.

10. The gas-liquid entrainment dust scrubber according to claim 9, characterized in that: It also includes a liquid level pipe arranged on one side of the dust cleaning box, the bottom end of the liquid level pipe is connected to the inside of the dust cleaning box, and the liquid level meter is installed on the liquid level pipe.

11. The gas-liquid entrainment dust scrubber according to claim 1, characterized in that: The dust cleaning box comprises a box body and a lower cone bucket connected to the bottom of the box body, and the dust cleaning chamber extends upward from the lower cone bucket into the box body.

12. The gas-liquid entrainment dust scrubber according to claim 11, characterized in that: A water stabilizing grid plate is arranged in the lower cone bucket.

13. The gas-liquid entrainment dust scrubber according to claim 11, characterized in that: A central vertical partition is provided inside the box body, and two sides of the central vertical partition form a ventilation area respectively, and each ventilation area includes an independent air inlet chamber and a dehydration chamber respectively.

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