Safety device of dust remover
By designing a multi-guarantee dust collector safety device, the problem of existing dust collectors lacking safety system protection when dealing with flammable and explosive exhaust gases is solved, and the safe and efficient operation of the dust collector is achieved, avoiding safety accidents and inefficiency.
Patent Information
- Application Number
- CN202421692210.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-17
AI Technical Summary
Existing dust collectors lack safety system protection when dealing with flammable and explosive exhaust gases, which pose safety hazards and inefficiency such as excessive temperature and blockage of filter materials.
A safety device for dust collector is designed, including filter body, ash bucket, star discharge valve, platform, guardrail, direct ladder, maintenance port, nameplate installation plate, pressure differential transmitter, air outlet, first thermometer, anti-static filter cartridge, pulse valve, explosion leakage plate, fire sprinkler and handle butterfly valve. The device ensures the safe and efficient operation of the dust collector through multiple guarantee measures such as temperature monitoring, automatic spray cooling, explosion relief disc design and pulse valve control.
The safe treatment of flammable and explosive exhaust dust is achieved, the safety performance of the dust collector is improved, the occurrence of safety accidents is avoided, and the dust removal effect and the service life of the equipment are improved by automatically cleaning the filter cartridge.
Smart Images
Figure CN222930543U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of environmental protection, in particular to a safety device for a dust collector. Background Technique
[0002] During the production process of enterprises, a large amount of dust and waste gas will be generated. The dust contains a large amount of flammable and explosive dust waste gas, which needs to be treated before it can be discharged. In the treatment process, the environmental protection equipment dust collector is required to further remove the dust in the waste gas. Since the waste gas contains flammable and explosive dust, it is necessary to detect the differential pressure, temperature, etc. in the dust to avoid safety accidents.
[0003] The existing dust collectors lack safety system protection when dealing with flammable and explosive waste gas. Therefore, there are certain safety hazards when the temperature inside the dust collector is relatively high. Moreover, when the dust collector is filtering, to prevent the filter material from being blocked and not cleaned on time, there are certain safety risks and low processing efficiency. For this reason, we propose a safety device for a dust collector to solve the above problems. Content of the Utility Model
[0004] One of the purposes of the utility model is achieved by adopting the following technical scheme:
[0005] A safety device for a dust collector includes a filter body and a hopper. The hopper is arranged at the bottom of the filter body, and a star-shaped discharge valve is arranged on the hopper. A platform is arranged at the middle position of the filter body, and legs are welded at the bottom of the platform. A guardrail is fixedly connected to the top of the platform, and straight ladders are arranged on both the front and rear sides of the platform. Three maintenance openings are equidistantly arranged on the front side of the filter body, and a nameplate mounting plate and a differential pressure transmitter are arranged on the front side of the filter body. An air outlet is arranged at the top of the filter body, and a first thermometer is fixedly installed on the inner wall of the air outlet. A plurality of anti-static filter cartridges are equidistantly arranged on both the front and rear sides near the top of the inner cavity of the filter body. One end of the anti-static filter cartridge penetrates through the side wall of the filter body, extends to the outside, and is provided with a pulse valve. Four explosion vent panels are arranged on the rear side of the filter body. A fire sprinkler pipe is arranged on the right side of the filter body, and a handle butterfly valve is arranged on the fire sprinkler pipe.
[0006] Further, the platform is made of channel steel.
[0007] Further, the four explosion vent panels are arranged in a rectangular array.
[0008] Further, three hoppers are provided, and second thermometers are arranged on all three hoppers.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0010] 1. The second thermometer is a thermocouple. Thus, when the temperature inside the dust collector is higher than 60 degrees Celsius, through the setting of the fire sprinkler pipe, the dust collector can be sprayed with water to cool down, improving the safety during the use of the dust collector. At the same time, automatic ash discharge of the dust collector can be achieved.
[0011] 2. When the internal resistance of the cartridge dust collector reaches a certain specified value, at this time, the PLC program controls the opening and closing of the pulse valve. First, the lifting valve of one compartment closes to cut off the filtered air flow. Then, the electromagnetic pulse valve opens, and the compressed air expands rapidly in the upper box body in a short time and rushes into the anti-static filter cartridge, causing the anti-static filter cartridge to expand and deform to generate vibration. Under the action of the reverse air flow scouring, the dust attached to the outer surface of the filter bag is stripped and falls into the ash hopper. After the dust cleaning is completed, the pulse valve closes and the lifting valve opens, and this compartment returns to the filtering state again. The dust cleaning of each compartment is carried out in turn. From the start of dust cleaning in the first compartment to the start of the next dust cleaning is a dust cleaning cycle. The fallen dust drops into the ash hopper and is discharged through the star-shaped discharge valve. By automatically cleaning the dust on the filter bag, it is beneficial to maintain the dust removal effect of the cartridge dust collector.
[0012] 3. Through the multiple guarantees of the thermometer, fire sprinkler pipe, rupture disc, and differential pressure transmitter, the safe treatment of flammable and explosive waste gas dust is realized. The rupture disc is designed in the filter cartridge area of the dust collector. When the pressure value of the filter cartridge is greater than the bearing value of the rupture disc, the rupture disc is pressured and bursts, causing the dust collector to directly burst at the mouth, so as to complete the emergency and safe discharge of the waste gas. Through the three guarantees of the thermocouple, differential pressure sensor, and rupture disc, the thermocouple is interlocked to control, and the temperature is automatically sprayed with water to cool down, effectively improving the safety performance of the flammable and explosive dust waste gas treatment system and effectively avoiding the occurrence of safety accidents, etc. Description of the Drawings
[0013] Figure 1 is the front view structural schematic diagram of this embodiment;
[0014] Figure 2 is the left view of this embodiment;
[0015] Figure 3 is the rear view of this embodiment;
[0016] Figure 4 is the top view structural schematic diagram of this embodiment.
[0017] In the figure: 1. Filter body; 2. Ash hopper; 3. Legs; 4. Platform; 5. Guardrail; 6. Differential pressure transmitter; 7. First thermometer; 8. Second thermometer; 9. Star-shaped discharge valve; 10. Air outlet; 11. Inspection opening; 12. Nameplate mounting plate; 13. Straight row ladder; 14. Fire sprinkler pipe; 15. Handle butterfly valve; 16. Rupture disc; 17. Anti-static filter cartridge; 18. Pulse valve. Detailed Implementation Manner
[0018] Please refer to Figures 1 to 4 , the present utility model provides the following technical solutions:
[0019] A safety device for a dust collector, comprising a filter body 1 and a hopper 2. The hopper 2 is arranged at the bottom of the filter body 1, and a star-shaped discharge valve 9 is arranged on the hopper 2. There are three hoppers 2, and second thermometers 8 are arranged on all three hoppers 2. A platform 4 is arranged at the middle position of the filter body 1, and legs 3 are welded to the bottom of the platform 4. The platform 4 is made of channel steel. A guardrail 5 is fixedly connected to the top of the platform 4, and straight ladders 13 are arranged on both the front and rear sides of the platform 4. Three maintenance openings 11 are equidistantly arranged on the front side of the filter body 1, and a nameplate mounting plate 12 and a differential pressure transmitter 6 are arranged on the front side of the filter body 1. An air outlet 10 is arranged at the top of the filter body 1, and a first thermometer 7 is fixedly installed on the inner wall of the air outlet 10. A plurality of anti-static filter cartridges 17 are equidistantly arranged on both the front and rear sides of the inner cavity of the filter body 1 near the top, and one end of the anti-static filter cartridge 17 penetrates through the side wall of the filter body 1, extends to the outside, and is provided with a pulse valve 18. Four explosion vent panels 16 are arranged on the rear side of the filter body 1, and the four explosion vent panels 16 are arranged in a rectangular array. The 4 explosion vent panels are arranged in the dust collector, and the explosion vent panels are used for the dust collector to relieve pressure.
[0020] Through the multiple guarantees of the thermometer, the fire sprinkler pipe 14, the explosion vent panel 16, and the differential pressure transmitter 6, the safe treatment of flammable and explosive waste gas dust is realized. The explosion vent panel 16 is designed in the filter cartridge area of the dust collector. When the pressure value of the filter cartridge is greater than the bearing value of the explosion vent panel, the explosion vent panel 16 is pressured and bursts, causing the dust collector to directly explode at the mouth, so as to complete the emergency and safe discharge of the waste gas. Through the three guarantees of the thermocouple, the differential pressure sensor, and the explosion vent panel 16, the thermocouple is interlocked to control, and the temperature is automatically reduced by spraying water when the temperature is too high, effectively improving the safety performance of the flammable and explosive dust waste gas treatment system and effectively avoiding the occurrence of safety accidents, etc.
[0021] A fire sprinkler pipe 14 is arranged on the right side of the filter body 1, and a handle butterfly valve 15 is arranged on the fire sprinkler pipe 14. The fire sprinkler pipe 14 is made of DN50 galvanized pipe by welding.
[0022] Working principle: When the present utility model is in use, the second thermometer 8 is a thermocouple. Through the interlocking system temperature monitoring of the thermocouple and the fire sprinkler pipe, when the internal temperature of the dust collector reaches 60 °C, the system can automatically open the solenoid valve on the fire sprinkler pipe to spray and cool the inside of the dust collector. Through the setting of the fire sprinkler pipe 14, the dust collector can be sprayed and cooled, improving the safety during the use of the dust collector. At the same time, automatic ash discharge of the dust collector can be achieved. After the dust-containing gas enters the hopper 2 of the cartridge dust collector, due to the sudden expansion of the air flow cross-section and the action of the air distribution plate, a part of the coarse particles in the air flow settle in the hopper 2 under the action of gravity and inertia. After the dust particles with fine particle size and low density enter the dust filtering chamber, through combined effects such as Brownian diffusion and sieving, the dust is deposited on the surface of the filter material. The purified gas enters the clean gas chamber and is discharged from the air outlet 10 through the exhaust pipe by the fan. When the resistance of the cartridge dust collector reaches a certain specified value, at this time, the PLC program controls the opening and closing of the pulse valve 18. First, the lifting valve of one compartment closes to cut off the filtering air flow. Then the pulse valve 18 opens, and the compressed air rapidly expands in the upper box body in a short time and surges into the anti-static filter cartridge 17, causing the anti-static filter cartridge 17 to expand and deform to generate vibration. Under the action of the reverse air flow scouring, the dust attached to the outer surface of the filter bag is peeled off and falls into the hopper 2. After the dust cleaning is completed, the pulse valve 18 closes and the lifting valve opens, and this compartment returns to the filtering state again. The dust cleaning of each compartment is carried out in turn. From the start of the dust cleaning of the first compartment to the start of the next dust cleaning is a dust cleaning cycle. The fallen dust drops into the hopper 2 and is discharged through the ash discharging valve.
Claims
1. A safety device for a dust collector, comprising a filter body (1) and an ash hopper (2), characterized in that: The ash hopper (2) is arranged at the bottom of the filter body (1), and a star-shaped discharge valve (9) is arranged on the ash hopper (2); a platform (4) is arranged at a middle position on the filter body (1), and a support leg (3) is welded to the bottom of the platform (4); a guardrail (5) is fixedly connected to the top of the platform (4), and straight ladders (13) are arranged on both the front and rear sides of the platform (4); three inspection ports (11) are equidistantly arranged on the front side of the filter body (1), and a nameplate mounting plate (12) and a differential pressure transmitter (6) are arranged on the front side of the filter body (1); and the filter body ( 1) is provided with an air outlet (10) at the top, and a first thermometer (7) is fixedly mounted on the inner wall of the air outlet (10), a plurality of anti-static filter cartridges (17) are equidistantly arranged near the top on both sides of the inner cavity of the filter body (1), and one end of the anti-static filter cartridge (17) passes through the side wall of the filter body (1), extends to the outside, and is provided with a pulse valve (18), four explosion relief plates (16) are provided on the rear side of the filter body (1), a fire sprinkler pipe (14) is provided on the right side of the filter body (1), and a handle butterfly valve (15) is provided on the fire sprinkler pipe (14).
2. A safety device for a dust collector according to claim 1, characterized in that: The platform (4) is made of channel steel.
3. A safety device for a dust collector according to claim 1, characterized in that: The four explosion relief plates (16) are arranged in a rectangular array.
4. A safety device for a dust collector according to claim 1, characterized in that: Three ash hoppers (2) are provided, and each of the three ash hoppers (2) is provided with a second thermometer (8).