Dust collection system and control method thereof for inhibiting dust from sticking and blocking filter material
By linking the temperature stabilization chamber and the additive chamber, and combining the design of the temperature-sensing flow guide door and dual solenoid valves, the problem of high-viscosity dust adhesion is solved, achieving efficient dust removal and equipment protection, and reducing costs.
Patent Information
- Application Number
- CN202211226205.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-09
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2042-10-09
AI Technical Summary
Existing filter media are inadequate for handling highly viscous dust, resulting in low filter cartridge efficiency and short lifespan. Furthermore, the addition of pretreatment equipment increases space requirements and costs.
The system employs a linkage between a temperature-stabilized chamber and an additive chamber. The gas temperature is controlled by a temperature-sensing flow guide door, and additives are released from the additive chamber to reduce gas viscosity. A dual solenoid valve design is used to achieve linkage between pulse jet cleaning and additives, preventing dust agglomeration.
It effectively prevents highly viscous dust from agglomerating, improves dust removal efficiency, extends equipment life, reduces processing costs, and requires no additional power equipment or floor space.
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Figure CN115608064B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of dust filtration, and is especially suitable for the field of high-viscosity dust removal. BACKGROUND
[0002] With the rapid development of industrial economy, the textile industry and the coking industry have become an industry with a large number of employed population in China. At the same time, the textile and coking industries are also a high-pollution industry, which will produce various air pollutants during the production process, especially the high-viscosity dust particles generated, which not only affect human health, but also cause wear and tear of the dust removal equipment. Treating dust pollution is an important task related to the health of the employed population in the industry.
[0003] Filter bag dust removal is a widely used dust removal equipment for preventing and treating air pollution. Improving the dust removal efficiency of filter cartridge type dust removal and controlling the treatment cost are of great significance for doing a good job in industrial dust removal. However, the filter material currently used in industry is difficult to handle high-viscosity dust and is easy to stick to the surface of the filter cartridge, which makes the filter cartridge have low working efficiency and short service life. It is difficult to meet the needs of society.
[0004] It is understood that the current equipment for handling high-viscosity dust needs additional pretreatment equipment, which greatly increases the land occupation of the equipment and significantly increases the treatment cost. SUMMARY
[0005] In view of the deficiencies of the prior art, the present application provides a dust removal system for inhibiting dust adhesion and clogging of filter material and a control method thereof. The dust removal system stabilizes the inlet air temperature through a thermostatic box and supplements the additives with an additive box. The problems of high-temperature bag burning of viscous dust and sticking to the surface of the filter cartridge at low temperature are solved, and no additional power equipment is needed, which greatly improves the dust removal efficiency of viscous dust and reduces the treatment cost.
[0006] The technical scheme of the present application is: a dust removal system for inhibiting dust adhesion and clogging of filter material, comprising an electromagnetic valve I, a gas pocket, an electromagnetic valve II, a blowing pipe I, a flower plate, an air outlet pipe, a filter bag, a box body, a dust drawer, a blowing pipe II, a pulse linkage valve, an additive box, an electric control valve, a thermostatic box, a temperature-sensitive guide door, a controller, an air inlet pipe and a temperature sensor.
[0007] The box is internally provided with a flower plate to divide the box into a clean air chamber and a filter chamber, the upper end of the flower plate is the clean air chamber, a blowing pipe I is arranged in the clean air chamber, the blowing pipe I is provided with blowing holes opposite to the opening of the filter bag, and one side of the blowing pipe I is connected with a gas pocket; an electromagnetic valve I and an electromagnetic valve II are arranged between the gas pocket and the blowing pipe I, the electromagnetic valve I and the electromagnetic valve II are electrically connected with the controller, the electromagnetic valve I and the electromagnetic valve II are connected in parallel, the other side of the blowing pipe I is connected with a blowing pipe II with a smaller diameter, and a gas outlet pipe is arranged on one side of the clean air chamber; the lower end of the flower plate is the filter chamber, the filter chamber is internally provided with a filter bag, a dust drawer is arranged below the filter chamber, and an air inlet pipe is arranged on one side of the filter chamber; the air inlet pipe is respectively provided with a temperature sensor, a temperature sensing guide door, a temperature stabilizing box and an additive tank according to the main airflow direction, and the temperature sensor is electrically connected with the controller.
[0008] Further, the temperature sensing guide door is arranged at the inlet of the temperature stabilizing box at the rear end of the temperature sensor, and the temperature sensing guide door comprises a rectangular metal baffle, a moving rod and a temperature sensing metal spring.
[0009] Further, the temperature stabilizing box is arranged at the rear end of the temperature sensing guide door and is in the shape of a rectangle, and is divided into two chambers by an internal partition plate, the upper edge of the partition plate is a cooling chamber, and the cooling chamber is internally provided with a rectangular cooling cavity, and the lower edge of the partition plate is a normal temperature chamber.
[0010] Further, the additive tank is arranged on the air inlet pipe between the temperature stabilizing box and the box, the upper end of the additive tank in the vertical section is in the shape of an inverted trapezoid with a wide upper end and a narrow lower end, the additive tank is internally provided with additives, the lower end of the additive tank is provided with two feeding channels, an electric control valve is arranged on one side of the feeding channel, and the electric control valve is electrically connected with the controller; a pulse linkage valve is arranged on the other side of the feeding channel, and the pulse linkage valve comprises a piston, a plug type metal block, a shell, a reset spring and a one-way air inlet valve; the shell is provided with a small hole for balancing air pressure at the tail end, the one-way air inlet valve is arranged at the tail end of the shell, the outer end of the pulse linkage valve is parallel to the blowing pipe II, the lower end of the feeding channel is embedded in the inside of the air inlet pipe, a sealing strip is used for sealing the connection, the two feeding channels are connected with each other and form an additive platform by being embedded in the pipe, the side of the platform is sealed, and the bottom is in the structure of a screen.
[0011] Further, the electromagnetic valve I is a normally open electromagnetic valve, and the electromagnetic valve II is a normally closed electromagnetic valve, wherein the electromagnetic valve I is opened by power supply, and the electromagnetic valve II is opened by power off.
[0012] The application also provides a control method of the dust removal system for inhibiting dust adhesion and blocking of filter material.
[0013] S1: start the fan, and the dust removal system starts to carry out filtering and dust removal operation;
[0014] S2: the dust-containing airflow flows through the temperature sensor, and the temperature is fed back to the controller;
[0015] if the temperature of the dust-containing airflow is normal, the dust-containing airflow passes through the normal temperature room of the temperature stabilizing box;
[0016] if the temperature of the dust-containing airflow is low, the dust-containing airflow passes through the normal temperature room of the temperature stabilizing box, and the controller starts the electric control valve to release the auxiliary agent to the auxiliary agent platform;
[0017] if the temperature of the pretreated dust is high, the temperature sensing metal spring is elongated by heat, and drives the metal baffle to move upwards through the moving rod, so that the dust-containing airflow is guided into the cooling room of the temperature stabilizing box; the higher the temperature is, the greater the elongation of the spring is, and the more the airflow entering the cooling room is;
[0018] S3: after temperature stabilization, the dust-containing airflow enters the dust removal system box, the dust is blocked on the surface of the filter bag, the clean gas passes through the filter bag into the clean gas chamber, and is discharged through the gas outlet pipe;
[0019] S4: after the dust on the surface of the filter bag accumulates for a period of time, a dust cake is formed, the electromagnetic valve I is started, the compressed air in the air pocket is sprayed through the spray hole of the spray pipe I, the filter bag is pulsed cleaned, and the compressed air passes through the spray pipe II to link the pulse linkage valve and release the auxiliary agent to the auxiliary agent platform;
[0020] S5: when the machine is stopped, the electromagnetic valve I is started through the controller to spray the filter bag once, and the auxiliary agent is released to the auxiliary agent platform;
[0021] S6: when the power is suddenly cut off, the electromagnetic valve II is self-started to spray the filter bag once, and the auxiliary agent is released to the auxiliary agent platform and uniformly mixed with the dust-containing airflow under the action of wind flow entrainment.
[0022] The application has the following beneficial effects:
[0023] 1. A temperature sensing flow guide door is installed on the pipeline of the air inlet of the dust removal system. The design of the temperature sensing flow guide door can distribute the gas flow entering the high-temperature cooling box and the normal-temperature box through the deformation of the temperature sensing metal spring. The gas temperature is maintained at a relatively stable level, which can effectively control the temperature of the gas, so as to control the viscosity of the dust-containing airflow.
[0024] 2. The auxiliary agent tank and the temperature stabilizing box device are linked. When the gas temperature is low, the auxiliary agent tank can release the auxiliary agent, and the auxiliary agent is mixed with the dust-containing airflow to reduce the viscosity of the gas.
[0025] 3. The auxiliary agent tank and pulse blowing linkage, each time the pulse blowing linkage releases the auxiliary agent. The auxiliary agent is evenly distributed into the airflow through the bottom plate screen and reaches the filter bag surface, forming a dust initial layer, so that the subsequent sticky dust will not directly stick to the filter cartridge surface, which is conducive to preventing the sticky dust from directly contacting the filter bag and causing adhesion and difficult to clean.
[0026] 4. The pulse linkage valve of the present application is designed to use the airflow of pulse blowing to push the piston. Due to the large air pressure, the piston can be quickly pushed, and the airflow is simultaneously introduced from the one-way inlet valve and the small hole, thereby pulling the pulse linkage valve to open. Since the reset of the valve is under the action of the reset spring and relies on the release airflow of the balance air pressure hole on the valve shell, the release airflow speed is slower than the inlet speed, so the reset speed is relatively slow. Due to this fast opening and slow closing design, the auxiliary agent can be effectively dropped to the auxiliary agent platform.
[0027] 5. The present application adopts a double electromagnetic valve design, and the electromagnetic valve II is designed to be self-starting at power failure, actively performing a blowing to release the auxiliary agent in advance on the auxiliary agent platform, and reaching the filter bag surface to form a dust initial layer when filtering next time. It can cope with sudden stop caused by power failure or operation failure, resulting in increased stickiness of the cake left on the filter bag surface, and difficult to clean when restarting. It is conducive to better extending the service life of the equipment.
[0028] 6. The present application provides dust adhesion suppression and filter material blocking, without the need for external power source and without obvious expansion of the floor area. The functionality and economy are integrated, which will provide a better choice for industrial high-temperature sticky dust treatment. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 is the overall structure schematic diagram of an embodiment of the present application.
[0030] Figure 2 is the pulse linkage valve schematic diagram of the present application.
[0031] Figure 3 is the temperature stabilizing box and temperature sensing guide door schematic diagram of the present application.
[0032] Figure 4 is the control system schematic diagram of the present application.
[0033] In the figure: 1. electromagnetic valve I, 2. gas pocket, 3. electromagnetic valve II, 4. blowing pipe I, 5. flower plate, 6. air outlet pipe, 7. filter bag, 8. box, 9. dust drawer, 10. blowing pipe II, 11. pulse linkage valve, 1101. piston, 1102. plug-in metal block, 1103. shell, 1104. reset spring, 1105. one-way air inlet valve, 12. auxiliary agent box, 13. auxiliary agent, 14. electric control valve, 15. temperature stabilizing box, 1501. partition, 1502. cooling cavity, 1503. cooling chamber, 1504. normal temperature chamber, 16. temperature sensing guide door, 1601. metal baffle, 1602. moving rod, 1603. temperature sensing metal spring, 17. controller, 18. air inlet pipe, 19. temperature sensor. DETAILED DESCRIPTION
[0034] The present application will be further described in conjunction with the drawings and specific embodiments.
[0035] In conjunction with Figures 1-4 , one aspect of the embodiment of the present application provides a dust removal system for inhibiting dust adhesion and clogging of filter material, comprising electromagnetic valve I1, gas pocket 2, electromagnetic valve II3, blowing pipe I4, flower plate 5, air outlet pipe 6, filter bag 7, box 8, dust drawer 9, blowing pipe II10, pulse linkage valve 11, auxiliary agent box 12, electric control valve 14, temperature stabilizing box 15, temperature sensing guide door 16, controller 17, air inlet pipe 18, and temperature sensor 19.
[0036] The box 8 contains the flower plate 5, which divides the box 8 into a clean air chamber and a filter chamber. The upper end of the flower plate 5 is the clean air chamber, which is provided with a blowing pipe I4. The blowing pipe I4 is provided with a blowing hole opposite the opening of the filter bag 7, and is connected to the gas pocket 2 on one side. Between the gas pocket 2 and the blowing pipe I4, electromagnetic valve I1 and electromagnetic valve II3 are installed. The two electromagnetic valves are electrically connected to the controller 17 in parallel. The other side of the blowing pipe I4 is connected to a blowing pipe II10 with a smaller diameter. An air outlet pipe 6 is provided on one side of the clean air chamber. The lower end of the flower plate 5 is the filter chamber, which contains a filter bag 7. A dust drawer 9 is provided below the filter chamber, and an air inlet pipe 18 is provided on one side of the filter chamber. The air inlet pipe 18 is provided with a temperature sensor 19, a temperature sensing guide door 16, a temperature stabilizing box 15, and an auxiliary agent box 12 according to the main airflow direction. The temperature sensor 19 is electrically connected to the controller 17.
[0037] The temperature sensing guide door 16 is arranged at the entrance of the temperature stabilizing box 15 behind the temperature sensor 19. The temperature sensing guide door 16 comprises a rectangular metal baffle 1601, a moving rod 1602 and a temperature sensing metal spring 1603. The metal baffle 1601 is generally rectangular and has three sections. The upper and lower sections are solid metal, and the middle section is a hollow metal frame. The metal baffle 1601 is clamped on the temperature stabilizing box 15 through a track and is connected to the temperature sensing metal spring 1603 through the moving rod 1602. The metal baffle 1601 moves up and down by the expansion and contraction of the temperature sensing metal spring 1603. The temperature sensing metal spring 1603 is a heat-sensitive spring.
[0038] The temperature stabilizing box 15 is arranged immediately behind the temperature sensing guide door 16 and is rectangular. The temperature stabilizing box 15 is divided into two chambers by an internal partition 1501. The upper edge of the partition 1501 is a cooling chamber 1503. The cooling chamber is provided with a rectangular cooling cavity 1502. The cooling cavity can be filled with a cooling material such as a heat-absorbing plate, a metal block, water or other heat-absorbing materials according to the actual environmental requirements. The lower edge of the partition 1501 is a normal temperature chamber 1504.
[0039] The auxiliary agent box 12 is arranged on the air inlet pipeline between the temperature stabilizing box 15 and the box body 8. The auxiliary agent box 12 has an inverted trapezoidal shape with a wide upper end and a narrow lower end in vertical section. The auxiliary agent box 12 is filled with an auxiliary agent 13. The lower end of the auxiliary agent box 12 is provided with two feeding channels. An electric control valve 14 is installed on the left feeding channel and is electrically connected to the controller 17. A pulse linkage valve 11 is installed on the right feeding channel. The pulse linkage valve 11 comprises a piston 1101, a latch type metal block 1102, a shell 1103, a reset spring 1104 and a one-way air inlet valve 1105. The shell 1103 has a small hole at the end for releasing air pressure. The one-way air inlet valve 1105 is installed at the end of the shell 1103. The outer end of the pulse linkage valve 11 is parallel to the blowing pipe II 10. The lower ends of the feeding channels are embedded in the inside of the air inlet pipeline 18. The connection is sealed with a sealing strip. The embedded parts of the two feeding channels are connected to form an auxiliary agent platform. The sides of the platform are sealed, and the bottom is a screen structure.
[0040] The electromagnetic valve I 1 is a normally open electromagnetic valve, and the electromagnetic valve II 3 is a normally closed electromagnetic valve. The electromagnetic valve I 1 is opened by power supply, and the electromagnetic valve II 3 is opened by power off.
[0041] Another aspect of the present embodiment also provides a control method for dust suppression system to inhibit dust adhesion and blockage of filter material: in the southern humid climate region mine, the dust generated by industrial production has high humidity and high viscosity, the equipment is installed at the dust-containing air flow collection point, the fan is started, and the dust removal system starts the filtering and dust removal operation. The dust-containing air flow enters the equipment through the air inlet pipe 18, the temperature sensor 19 detects the gas temperature, and feeds back to the controller 17. Then the temperature sensing metal spring 1603 will elongate with the increase of temperature, and drive the metal baffle 1601 to slide upward through the moving rod 1602. Due to the hollow design in the middle of the metal baffle 1601, the flow of air entering the cooling chamber 1503 and the normal temperature chamber 1504 can be distributed. The higher the temperature, the more dust-containing air flow enters the cooling chamber 1503. After cooling through the temperature stabilizing box 15, the temperature can be maintained at a suitable temperature, which can neither cause high temperature bag burning nor avoid low temperature bag sticking.
[0042] If the inlet gas temperature is low, the temperature sensor 19 feeds back to the controller 17. The electric control valve 14 in the auxiliary agent tank 12 is started to release the auxiliary agent to the bottom auxiliary agent platform. Under the action of air flow suction, it passes through the lower end of the porous screen and mixes with the dust-containing air flow to reduce the viscosity of the dust-containing air flow.
[0043] After being treated by the temperature stabilizing box 15 and the auxiliary agent tank 12, the dust-containing air flow enters the dust removal system box. Under the filtering action of the filter bag 7, the dust is blocked on the surface of the filter bag 7, and the clean gas passes through the filter bag 7 and is discharged through the air outlet pipe 6. After a period of time, the dust cake is formed on the surface of the filter bag 7. Start the electromagnetic valve I 1, and the compressed air in the air pocket 2 is sprayed through the spray hole of the spray pipe I 4 to spray the filter bag 7. After each pulse spray to strip the dust cake on the surface of the filter bag 7, the pulse linkage valve 11 is linked. Under the action of the pulse force, the piston 1101 is pushed, the air flow is sucked from the one-way air inlet valve 1105 and the small hole, the valve is quickly opened, and then under the action of the reset spring 1104, the air pressure is balanced through the small hole on the shell 1103, the air flow flows out from the small hole, the speed is slower than the inlet speed, and the piston 1101 will slowly reset. It is just because of this design of fast opening and slow closing that the auxiliary agent 13 is released to the auxiliary agent platform. The auxiliary agent 13 forms a dust initial layer on the filter bag 7. The viscous dust will not directly stick to the surface of the filter bag 7. It can play a role in protecting the filter bag 7.
[0044] If the machine is stopped, the electromagnetic valve I 1 is started by the controller 17 to spray the filter bag 7 once, and the auxiliary agent 13 is released to the auxiliary agent platform and uniformly mixed with the dust-containing air flow under the action of air flow suction.
[0045] If the power-off condition occurs, the dust cake on the surface of the filter bag 7 cannot be stripped, and after the temperature decreases, the dust adhesion increases, which will be adhered to the surface of the filter bag 7. In the application, the electromagnetic valve II 3 is designed to start automatically after power failure, and a pulse blowing is carried out to strip the dust cake on the filter bag 7, effectively solving the problem of sticky bag of sticky dust in the sudden condition.
[0046] The above examples are used to illustrate the technical solutions of the present application but not limit the present application. Those skilled in the art should understand that any modification, equivalent replacement or improvement of the technical solutions of the present application within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A dust collection system that inhibits dust agglomeration plugging of filter media, characterized by: The box (8) is provided with a flower plate (5) to divide the box (8) into a clean air chamber and a filter chamber, the upper end of the flower plate (5) is the clean air chamber, the clean air chamber is provided with a blowing pipe I (4), the blowing pipe I (4) is provided with a blowing hole opposite to the opening of the filter bag (7), and one side of the blowing pipe I (4) is connected with the air pocket (2); the air pocket (2) and the blowing pipe I (4) are provided with the electromagnetic valve I (1) and the electromagnetic valve II (3) therebetween, the electromagnetic valve I (1) and the electromagnetic valve II (3) are electrically connected with the controller (17), the electromagnetic valve I (1) and the electromagnetic valve II (3) are connected in parallel, the other side of the blowing pipe I (4) is connected with a blowing pipe II (10) with a smaller pipe diameter, and the clean air chamber is provided with an air outlet pipe (6) on one side; the lower end of the flower plate (5) is the filter chamber, the filter chamber is provided with the filter bag (7), the filter chamber is provided with a dust drawer (9) below, and one side of the filter chamber is provided with an air inlet pipe (18); the air inlet pipe (18) is provided with a temperature sensor (19), a temperature guide door (16), a temperature stabilizing box (15) and an auxiliary agent box (12) according to the main airflow direction, the temperature sensor (19) is electrically connected with the controller (17), the temperature stabilizing box (15) is arranged immediately behind the temperature guide door (16), is in a rectangular shape, is divided into two chambers by an internal partition plate (1501), the upper edge of the partition plate (1501) is a cooling chamber (1503), the cooling chamber (1503) is provided with a rectangular cooling cavity (1502), and the lower edge of the partition plate (1501) is a normal temperature chamber (1504); The box (8) is provided with a flower plate (5) to divide the box (8) into a clean air chamber and a filter chamber, the upper end of the flower plate (5) is the clean air chamber, the clean air chamber is provided with a blowing pipe I (4), the blowing pipe I (4) is provided with a blowing hole opposite to the opening of the filter bag (7), and one side of the blowing pipe I (4) is connected with the air pocket (2); the air pocket (2) and the blowing pipe I (4) are provided with the electromagnetic valve I (1) and the electromagnetic valve II (3) therebetween, the electromagnetic valve I (1) and the electromagnetic valve II (3) are electrically connected with the controller (17), the electromagnetic valve I (1) and the electromagnetic valve II (3) are connected in parallel, the other side of the blowing pipe I (4) is connected with a blowing pipe II (10) with a smaller pipe diameter, and the clean air chamber is provided with an air outlet pipe (6) on one side; the lower end of the flower plate (5) is the filter chamber, the filter chamber is provided with the filter bag (7), the filter chamber is provided with a dust drawer (9) below, and one side of the filter chamber is provided with an air inlet pipe (18); the air inlet pipe (18) is provided with a temperature sensor (19), a temperature guide door (16), a temperature stabilizing box (15) and an auxiliary agent box (12) according to the main airflow direction, the temperature sensor (19) is electrically connected with the controller (17), the temperature stabilizing box (15) is arranged immediately behind the temperature guide door (16), is in a rectangular shape, is divided into two chambers by an internal partition plate (1501), the upper edge of the partition plate (1501) is a cooling chamber (1503), the cooling chamber (1503) is provided with a rectangular cooling cavity (1502), and the lower edge of the partition plate (1501) is a normal temperature chamber (1504); The additive box (12) is located on the air inlet pipe between the temperature stabilizer (15) and the box body (8). The vertical cross-section of the additive box (12) is an inverted trapezoid with a wider top and narrower bottom, containing additives (13). The lower end is provided with two feeding channels. One feeding channel is equipped with an electric control valve (14), which is electrically connected to the controller (17). The other feeding channel is equipped with a pulse linkage valve (11). The pulse linkage valve (11) includes a piston (1101), a pin-type metal block (1102), a shell (1103), a return spring (1104), and a one-way air inlet valve (1105). 105); The outer shell (1103) has a small hole for balancing air pressure at the end. The one-way air inlet valve (1105) is installed at the end of the outer shell (1103). The outer end of the pulse linkage valve (11) is aligned parallel to the blow pipe II (10). Compressed air passes through the blow pipe II (10) to link the pulse linkage valve (11) and release the additive (13) to the additive platform. The lower end of the feeding channel is embedded in the air inlet pipe (18). The connection is sealed with a sealing strip. The two feeding channels are connected in the part embedded in the pipe to form an additive platform. The side of the platform is sealed and the bottom is a screen structure.
2. The dust extraction system of claim 1, wherein: The temperature-sensing flow guide door (16) is located at the inlet of the temperature-stabilized box (15) at the rear end of the temperature sensor (19). The temperature-sensing flow guide door (16) includes a rectangular metal baffle (1601), a moving rod (1602), and a temperature-sensing metal spring (1603). The metal baffle (1601) is generally rectangular and consists of three sections. The upper and lower sections are solid metal, and the middle section is a hollow metal frame. It is secured to the temperature-stabilized box (15) via a track and connected to the temperature-sensing metal spring (1603) via the moving rod (1602). The metal baffle (1601) moves up and down due to the extension and retraction of the temperature-sensing metal spring (1603). The temperature-sensing metal spring (1603) is a thermosensitive spring.
3. The dust extraction system of claim 1, wherein: The solenoid valve I (1) is a normally open solenoid valve, and the solenoid valve II (3) is a normally closed solenoid valve, wherein solenoid valve I (1) is energized and opened, and solenoid valve II (3) is de-energized and opened.
4. A method of controlling a dust collection system that inhibits dust agglomeration and blinding of the filter material according to any one of claims 1 to 3, characterized in that: Includes the following steps: S1: Start the fan, and the dust removal system begins its filtration and dust removal operation; S2: The dust-laden airflow passes through the temperature sensor (19) and feeds back the temperature to the controller (17); If the temperature of the dust-laden airflow is normal, it passes through the ambient temperature chamber (1504) of the temperature stabilization chamber (15); If the temperature of the dust-laden airflow is too low, it will pass through the ambient temperature chamber (1504) of the temperature stabilization chamber (15), and the controller (17) will activate the electric control valve (14) to release the additive (13) to the additive platform; If the temperature of the pre-treated dust is too high, the temperature-sensitive metal spring (1603) will extend due to heat and drive the metal baffle (1601) to move upward through the moving rod (1602), guiding the dust-laden airflow into the cooling chamber (1503) of the temperature stabilizing box (15). The higher the temperature, the greater the extension length of the spring, and the greater the flow rate of the airflow into the cooling chamber (1503). S3: After the temperature stabilizes, the dust-laden airflow enters the dust removal system housing. The dust is blocked on the surface of the filter bag (7). After filtration, the clean gas passes through the filter bag (7) and enters the clean air chamber, and is discharged through the outlet pipe (6). S4: After dust accumulates on the surface of the filter bag (7) for a period of time, a dust cake is formed. The solenoid valve I (1) is activated, and the compressed air in the air tank (2) is blown through the blow hole of the blow pipe I (4) to perform pulse cleaning on the filter bag (7); and the compressed air is linked to the pulse linkage valve (11) through the blow pipe II (10) and the additive (13) is released to the additive platform. S5: When the machine stops, the solenoid valve I (1) is started by the controller (17) to blow the filter bag once and release the additive (13) to the additive platform; S6: When there is a sudden power outage, the solenoid valve II (3) starts automatically, blows the filter bag (7) once, and releases the additive (13) to the additive platform, which is uniformly mixed with the dust-laden airflow under the action of airflow suction.
Citation Information
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