Wet dust collector

Abstract

The utility model relates to a wet dust remover in the field of dust removers, which comprises a rack and a dust removal cylinder arranged on the rack, an air inlet pipeline is arranged on the outer surface of the dust removal cylinder, an exhaust port is arranged on the dust removal cylinder, a water outlet for discharging sewage is arranged at the bottom of the dust removal cylinder, an air inlet channel is formed in the air inlet pipeline, and the air inlet channel is communicated with the exhaust port. The air inlet pipeline is connected with a spray valve, one end of the spray valve extends towards the air inlet channel and is connected with a spray head, the interior of the dust removal cylinder is connected with an isolation filter cylinder through a sealing plate, an isolation cavity is formed in the isolation filter cylinder, the top of the isolation filter cylinder is connected with a drainage plate, and a drainage column is arranged on the drainage plate. The design of the drainage columns can increase the contact area of the gas, so that the dust removal effect of the dust remover is improved, the drainage plates and the drainage columns can also prevent water mist from being directly splashed into the exhaust port, and the drying and cleaning effects of the exhaust port are improved.

Description

Technical Field

[0001] The utility model relates to the field of dust collectors, in particular to a wet dust collector. Background Art

[0002] As an efficient and environmentally friendly smoke treatment equipment, wet dust collector plays an increasingly important role in modern industrial production. It is widely used in iron and steel metallurgy, petrochemical, rubber tire, electric power, coal and other industries, especially in smelting process, coking process, hot blast furnace, converter smelting, furnace discharge, oil refining, chemical synthesis, alumina production, sulfuric acid manufacturing, thermal power generation, electroplating, electrolysis and other process flows. Wet dust collector can effectively purify the generated flue gas and reduce the emission of harmful gases and dust, making great contributions to environmental protection and sustainable development.

[0003] Existing wet dust collectors are mainly based on the principle of water mist spraying. Through the mixing of water mist and dust-containing flue gas, the particulate matter in the flue gas is captured and removed by using the adsorption and sedimentation effects of water. According to the different directions of exhaust gas flow, wet dust collectors can be divided into two structural forms: cross-flow (horizontal) and vertical flow (vertical). Cross-flow wet dust collectors mostly use plate structures, and the gas flows in and out horizontally, while vertical flow wet dust collectors mostly use tube structures, and the gas flows in and out vertically. Under the same ventilation cross-sectional area, the efficiency of vertical flow wet dust collectors is usually twice that of cross-flow.

[0004] However, the existing wet dust collectors still have some defects and shortcomings in actual use. In actual operation, due to the introduction of dust-containing gas into the air intake duct, it is easy to form adsorption accumulation in the duct, resulting in a large amount of dust in the duct. The existing dust collector is not easy to clean, resulting in water accumulation in the ash hopper of the dust collector, affecting the normal operation of the dust collector. In addition, during the use of the existing wet dust collector, the gas diversion and filtration effect inside the dust collector cylinder is poor, resulting in dust being easily discharged directly from the exhaust port of the dust collector cylinder, thereby affecting the dust removal effect and efficiency of the dust collector, causing environmental pollution and damage to workshop users, and is not conducive to the safe discharge and use of gas. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide a wet dust collector to solve the technical problem that the internal dust removal and filtration effect of the wet dust collector on the dust-containing gas in the above background technology is poor, which affects the stable use of the wet dust collector and the safe discharge of gas.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] A wet dust collector comprises a frame and a dust collection cylinder arranged on the frame, an outer surface of the dust collection cylinder is provided with an air intake duct, one end of the air intake duct is exposed outside the dust collection cylinder, and the other end of the air intake duct is tangentially connected to the dust collection cylinder, an exhaust port is provided on the dust collection cylinder, and a drain port for discharging sewage is provided at the bottom of the dust collection cylinder, an air intake channel is formed inside the air intake duct, the air intake channel is connected to the interior of the dust collection cylinder, a spray valve is connected to the air intake duct, one end of the spray valve extends to the air intake channel and is connected to a spray head, the other end of the spray valve is exposed outside the air intake duct and is connected to a water injection pipe, one end of the water injection pipe is connected to a circulating water pump, the water inlet end of the circulating water pump is connected to a water storage tank through the water inlet pipe, a water tank is formed inside the water storage tank, the interior of the dust collection cylinder is connected to an isolation filter cartridge through a sealing plate, an isolation chamber connected to the isolation filter cartridge is provided in the isolation filter cartridge, the top of the isolation filter cartridge is connected to a drainage plate, and a plurality of drainage columns connected to the isolation chamber are provided on the drainage plate.

[0008] Further in the above description, the air intake duct is arranged around the outer surface of the dust removal cylinder and is connected to the inside of the dust removal cylinder, and a cleaning door is connected to the side of the air intake duct near the spray valve. The cleaning door can facilitate the cleaning of the air intake channel of the air intake duct, and the spray valve can be installed around the air intake duct to clean it in real time by water pressure, thereby reducing the adhesion and accumulation of dust in the dust-laden gas in the air intake channel.

[0009] In the above description, the circulating water pump is further installed on the frame, the drainage end of the circulating water pump is connected to the end of the water injection pipe, the water injection pipe is connected to a pressure gauge for detecting the spray water pressure, and the end of the water injection pipe close to the circulating pipe is connected to a control valve. The circulating water pump can be used to circulate the water flow, so that the water flow tightens the water injection pipe and the spray valve sprays the inside of the air intake pipe to reduce dust, so that the dust and water flow flow into the dust removal cylinder, thereby reducing dust on the dust-containing gas.

[0010] In the above description, the water tank is further arranged in the frame, and the water tank of the water tank is located below the drain outlet of the dust collecting cylinder. A separation chamber is formed inside the water tank through a partition. The end of the water inlet pipe extends to the separation chamber and is connected to the separation chamber. The separation chamber is provided with an activated carbon plate and a filter. The sewage discharged from the dust collecting cylinder through the drain outlet is collected by the arranged water tank, and the activated carbon plate and the filter are arranged in the water tank to isolate the dust and liquid, so as to facilitate the circulating water pump to repeatedly recycle the liquid in the separation chamber.

[0011] Optionally, liquid level and pressure sensors are installed in the water tank to monitor the liquid capacity in real time, and are linked with the explosion-proof fan to issue an audible and visual alarm when the liquid capacity is lower than the set value.

[0012] Further in the above description, the sealing plate is welded to the inner wall of the dust collection cylinder, the isolation filter cartridge is connected to the dust collection cylinder, the cross section of the isolation filter cartridge is conical, the guide plate is installed on the top of the isolation filter cartridge, the guide column is arranged on the guide plate, and the inside of the guide column forms an air outlet connected to the isolation chamber. The isolation filter cartridge can perform secondary filtration on the dust-reduced gas to reduce the direct emission of dust, and the guide column on the guide plate can lead the dust-reduced gas along the air outlet, and the gas can be isolated after passing through the isolation chamber to reduce the emission of large dust particles.

[0013] Optionally, an explosion-proof fan is connected to the exhaust port of the dust collector through an exhaust duct, so that the explosion-proof fan can improve the filtering effect of the dust-containing gas. The set drainage columns and air outlet holes can further enhance the filtering effect of the gas while improving the flow dust removal efficiency of the gas, thereby preventing the direct discharge of the dust-containing gas.

[0014] Further in the above description, the outer surface of the dust removal cylinder is connected with a visual window, and the side of the frame is provided with an openable and closable cabinet door.

[0015] Optionally, a standard explosion relief plate is installed on the dust collection cylinder, and an inspection door is connected to the outside of the dust collection cylinder.

[0016] The beneficial effects of the utility model are as follows: through the tangential connection between the air intake duct and the dust collector, the gas entering the dust collector can form a rotating airflow, which can enhance the dust removal effect. The arrangement of the spray valve and the nozzle can spray water mist in the air intake channel, so that the dust particles in the gas passing through the air intake channel and entering the dust collector come into contact with the water mist, thereby forming wet dust particles and settling, and are discharged from the drain port of the dust collector along with the liquid. Through the circulating water pump and the water injection pipeline, the recycling of water resources can be realized. The isolation filter cartridge and the isolation chamber inside it can further purify the gas that has undergone preliminary dust removal. Under the action of the rotating airflow, when smaller dust particles are brought into the isolation chamber, the dust-containing gas is further separated through the filtering effect of the isolation filter cartridge. At the same time, the design of the drainage column can increase the contact area of ​​the gas and improve the filtering effect. In addition, the drainage plate and the drainage column can also prevent the water mist from directly splashing into the exhaust port, thereby improving the drying and cleaning effect of the exhaust port, so that the filtered gas is discharged by the drainage column on the drainage plate, thereby improving the dust removal effect of the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the present embodiment from a front view angle;

[0018] Figure 2 It is a three-dimensional diagram of the embodiment from a rear view angle;

[0019] Figure 3 Schematic diagram of the internal structure of this embodiment;

[0020] Figure 4 It is the front view of this embodiment;

[0021] Figure 5 for Figure 4 Sectional view along AA;

[0022] Figure 6 This is a connection diagram of the use state of this embodiment;

[0023] The reference numerals in the figure are: 1-frame, 2-dust removal cylinder, 3-inlet duct, 4-exhaust port, 5-drain port, 6-inlet channel, 7-spray valve, 8-nozzle, 9-water injection pipe, 10-circulating water pump, 11-water inlet pipe, 12-water storage tank, 13-isolation filter cartridge, 14-isolation chamber, 15-drainage plate, 16-drainage column, 17-cleaning door, 18-pressure gauge, 19-partition, 20-separation chamber, 21-activated carbon plate, 22-filter, 23-cabinet door, 24-exhaust duct, 25-explosion-proof fan. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] In this embodiment, refer to Figure 1-Figure 6 A wet dust collector specifically implemented therein comprises a frame 1 and a dust collecting cylinder 2 arranged on the frame 1, an air intake pipe 3 is arranged on the outer surface of the dust collecting cylinder 2, one end of the air intake pipe 3 is exposed outside the dust collecting cylinder 2, and the other end of the air intake pipe 3 is tangentially connected to the dust collecting cylinder 2, an exhaust port 4 is opened on the dust collecting cylinder 2, a drain port 5 for discharging sewage is arranged at the bottom of the dust collecting cylinder 2, an air intake channel 6 is formed inside the air intake pipe 3, the air intake channel 6 is communicated with the inside of the dust collecting cylinder 2, a spray valve 7 is connected to the air intake pipe 3, and one end of the spray valve 7 extends to the air intake channel 6. The other end of the spray valve 7 is exposed outside the air inlet pipe 3 and is connected to a water injection pipe 9. One end of the water injection pipe 9 is connected to a circulating water pump 10. The water inlet end of the circulating water pump 10 is connected to a water storage tank 12 through a water inlet pipe 11. A water trough is formed inside the water storage tank 12. The interior of the dust removal cylinder 2 is connected to an isolation filter cartridge 13 through a sealing plate. The isolation filter cartridge 13 is provided with an isolation chamber 14 that is connected to the interior of the dust removal cylinder 2. The top of the isolation filter cartridge 13 is connected to a drainage plate 15, and the drainage plate 15 is provided with a drainage column 16 that is connected to the isolation chamber 14.

[0026] The air intake duct 3 is arranged around the outer surface of the dust removal cylinder 2 and is connected to the inside of the dust removal cylinder 2. A cleaning door 17 is connected to the side of the air intake duct 3 near the spray valve 7. The cleaning door 17 is arranged to facilitate the cleaning of the air intake channel 6 of the air intake duct 3. The spray valve 7 is arranged around the air intake duct 3 so that it can be cleaned in real time by water pressure, thereby reducing the adhesion and accumulation of dust in the dust-containing gas in the air intake channel 6.

[0027] The circulating water pump 10 is installed on the frame 1, and the drainage end of the circulating water pump 10 is connected to the end of the water injection pipe 9. The water injection pipe 9 is connected to a pressure gauge 18 for detecting the spray water pressure, and the end of the water injection pipe 9 close to the circulating pipe is connected to a control valve. The circulating water pump 10 can circulate the water flow, so that the water flow tightens the water injection pipe 9 and sprays the inside of the air intake pipe 3 through the spray valve 7 to reduce dust, so that the dust and water flow flow into the dust removal cylinder 2, thereby reducing dust on the dust-containing gas.

[0028] The water tank 12 is arranged in the frame 1, and the water tank of the water tank 12 is located below the drain port 5 of the dust collecting cylinder 2. A separation chamber 20 is formed inside the water tank through a partition 19. The end of the water inlet pipe 11 extends to the separation chamber 20 and communicates with the separation chamber 20. An activated carbon plate 21 and a filter screen 22 are arranged in the separation chamber 20. The sewage discharged from the dust collecting cylinder 2 through the drain port 5 is collected by the arranged water tank 12, and the activated carbon plate 21 and the filter screen 22 are arranged in the water tank 12 to isolate the dust and liquid, so as to facilitate the circulating water pump 10 to repeatedly recycle the liquid in the separation chamber 20.

[0029] Optionally, a liquid level and pressure sensor is installed in the water tank 12 to monitor the liquid capacity in real time, and is linked with the explosion-proof fan 25 to issue an audible and visual alarm when the liquid capacity is lower than a set value.

[0030] The sealing plate is welded to the inner wall of the dust collecting cylinder 2, the isolation filter cartridge 13 is connected to the dust collecting cylinder 2, the cross section of the isolation filter cartridge 13 is conical, the guide plate 15 is installed on the top of the isolation filter cartridge 13, the guide column 16 is arranged on the guide plate 15, and the inside of the guide column 16 forms an air outlet connected to the isolation chamber 14. The isolation filter cartridge 13 can perform secondary filtration on the dust-reduced gas to reduce the direct emission of dust, and the guide column 16 on the guide plate 15 can lead the dust-reduced gas along the air outlet, and the gas can be isolated through the isolation chamber 14 to reduce the emission of large dust particles.

[0031] Optionally, an explosion-proof fan 25 is connected to the exhaust port 4 of the dust removal cylinder 2 through an exhaust duct 24, so that the explosion-proof fan 25 can improve the filtering effect of the dust-containing gas. The set drainage column 16 and the air outlet can further enhance the filtering effect of the gas while improving the flow dust removal efficiency of the gas, thereby preventing the direct discharge of the dust-containing gas.

[0032] The outer surface of the dust collecting cylinder 2 is connected with a visual window, and the side of the frame 1 is provided with an openable cabinet door 23. A standard explosion relief piece is installed on the dust collecting cylinder 2, and the outside of the dust collecting cylinder 2 is connected with an inspection door.

[0033] Specifically, an electrostatic jumper is used between the pipelines so that the static electricity on the pipelines can be conducted away in time, and an explosion-proof valve is installed on the dust collection pipeline connecting the air intake pipeline 3 of the dust collector and the workshop to prevent the explosive airflow and flame from rushing back to the workshop when the dust collector explodes.

[0034] The specific working principle of this embodiment is as follows: the air inlet pipe 3 of the dust collector is connected with the dust removal pipe of the workshop, and the exhaust port 4 on the dust removal cylinder 2 is connected to the explosion-proof fan 25 through the exhaust pipe 24, so that the dust-containing gas in the workshop enters the dust removal cylinder 2 through the air inlet pipe 3, and the gas flowing along the surrounding air inlet pipe 3 forms a rotating airflow. The rotating airflow can enhance the dust removal effect, and the liquid in the water storage tank 12 is extracted by the circulating water pump 10, so that it can spray water mist in the air inlet channel 6 through the setting of the spray valve 7 and the nozzle 8, so that the dust particles in the gas entering the dust removal cylinder 2 through the air inlet channel 6 are in contact with the water mist, thereby forming wet dust particles and settling, and are discharged from the drain port 5 of the dust removal cylinder 2 with the liquid and fall into the water tank of the water storage tank 12. Through the isolation of the activated carbon plate 21 and the filter screen 22, the filtered liquid can be connected to the circulating water pump 10 through the water inlet pipe 11, so as to realize the recycling of water resources. When smaller dust particles are brought into the isolation chamber 14 by the drive of the explosion-proof fan 25 and the action of the rotating airflow, the dust-containing gas is further separated by the filtering effect of the isolation filter cartridge 13. At the same time, the design of the drainage column 16 can increase the contact area of ​​the gas and improve the filtering effect. In addition, the drainage plate 15 and the drainage column 16 can also prevent water mist from directly splashing into the exhaust port 4, thereby improving the drying and cleaning effect of the exhaust port 4, and allowing the filtered gas to pass through the drainage column 16 on the drainage plate 15 and be discharged by the explosion-proof fan 25, thereby improving the dust removal effect of the dust collector.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A wet dust collector, comprising a frame and a dust collecting cylinder arranged on the frame, an air intake duct is arranged on the outer surface of the dust collecting cylinder, one end of the air intake duct is exposed outside the dust collecting cylinder, and the other end of the air intake duct is tangentially connected to the dust collecting cylinder, an exhaust port is arranged on the dust collecting cylinder, and a drainage port for discharging sewage is arranged at the bottom of the dust collecting cylinder, characterized in that: An air intake channel is formed inside the air intake pipe, and the air intake channel is connected to the interior of the dust removal cylinder. A spray valve is connected to the air intake pipe, one end of the spray valve extends to the air intake channel and is connected to a nozzle, the other end of the spray valve is exposed outside the air intake pipe and is connected to a water injection pipe, one end of the water injection pipe is connected to a circulating water pump, the water inlet end of the circulating water pump is connected to a water storage tank through the water inlet pipe, a water tank is formed inside the water storage tank, the interior of the dust removal cylinder is connected to an isolation filter cartridge through a sealing plate, an isolation chamber connected to the interior of the dust removal cylinder is provided in the isolation filter cartridge, the top of the isolation filter cartridge is connected to a drainage plate, and a plurality of drainage columns connected to the isolation chamber are provided on the drainage plate.

2. A wet dust collector according to claim 1, characterized in that: The air inlet duct is arranged around the outer surface of the dust removal cylinder and is communicated with the interior of the dust removal cylinder. A cleaning door is connected to the side of the air inlet duct close to the spray valve.

3. A wet dust collector according to claim 1, characterized in that: The circulating water pump is installed on the frame, the drainage end of the circulating water pump is connected to the end of the water injection pipe, the water injection pipe is connected to a pressure gauge for detecting the spray water pressure, and the end of the water injection pipe close to the circulating pipe is connected to a control valve.

4. A wet dust collector according to claim 1, characterized in that: The water tank is arranged in the frame, and the water tank of the water tank is located below the drain outlet of the dust removal cylinder. A separation chamber is formed inside the water tank through a partition. The end of the water inlet pipe extends to the separation chamber and is connected with the separation chamber. An activated carbon plate and a filter are arranged in the separation chamber.

5. A wet dust collector according to any one of claims 1 to 4, characterized in that: The sealing plate is welded to the inner wall of the dust collection cylinder, the isolation filter cylinder is connected to the dust collection cylinder, the cross-section of the isolation filter cylinder is conical, the guide plate is installed on the top of the isolation filter cylinder, the guide column is arranged on the guide plate, and the interior of the guide column forms an air outlet hole connected to the isolation cavity.

6. A wet dust collector according to any one of claims 1 to 4, characterized in that: The outer surface of the dust removal cylinder is connected with a visual window, and the side of the frame is provided with an openable and closable cabinet door.

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