CN209934291U - Pulse cloth bag dust removal device of biomass boiler - Google Patents

Pulse cloth bag dust removal device of biomass boiler Download PDF

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Publication number
CN209934291U
CN209934291U CN201920513198.1U CN201920513198U CN209934291U CN 209934291 U CN209934291 U CN 209934291U CN 201920513198 U CN201920513198 U CN 201920513198U CN 209934291 U CN209934291 U CN 209934291U
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China
Prior art keywords
ash
box body
valve
pulse
biomass boiler
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CN201920513198.1U
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Chinese (zh)
Inventor
刘君杰
胡晓
高艳珍
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SHANXI YITONG ENVIRONMENTAL ENERGY TECHNOLOGY GROUP CO LTD
Original Assignee
SHANXI YITONG ENVIRONMENTAL ENERGY TECHNOLOGY GROUP CO LTD
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Priority to CN201920513198.1U priority Critical patent/CN209934291U/en
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Abstract

The utility model discloses a biomass boiler's pulse sack dust collector. Comprises an upper box body, a middle box body, an ash bucket, a blowing device, an ash conveying and discharging device and a local control cabinet; the upper box body is internally provided with an air bag, a dust removal channel and a bypass channel which are mutually communicated through a communication channel, and the dust removal channel is provided with a lift valve and a bypass valve; the two ends of the middle box body are respectively provided with a smoke inlet and a smoke outlet, and a filter bag is arranged in the middle box body; the top end of the ash bucket is communicated with the lower end of the middle box body, the bottom end of the ash bucket is communicated with the ash conveying and discharging device, and a material level meter and a vibrating motor are arranged in the ash bucket; the blowing device is a pulse valve which is arranged in the upper box body and is connected with the air bag through a loose joint; the ash conveying and discharging device is arranged below the ash hopper and comprises an ash discharger and a conveyor; the local control cabinet is electrically connected with the lift valve, the bypass valve, the pulse valve, the ash discharger, the conveyor and the vibrating motor. The utility model discloses can effectively reduce dust content and particulate matter concentration in the flue gas, area is little, operates steadily, low resistance, low energy consumption.

Description

Pulse cloth bag dust removal device of biomass boiler
Technical Field
The utility model belongs to the technical field of the flue gas dust removal, a fuel dust collecting equipment is related to, concretely relates to biomass boiler's pulse sack dust collector.
Background
A large amount of crop straws are produced in rural areas every year in China, and the existing treatment method for the crop straws is generally abandoned in fields or directly burnt in the fields, but the precious resources are wasted and the environment is seriously polluted. The crop straws are good heat sources, and the crop straws discarded in the field are collected for heat supply in nearby rural areas, so that the problems of environmental pollution and comprehensive utilization caused by open-air burning of the straws can be fundamentally solved, and the use value of the crop straws can be improved.
Compared with coal burning, the biomass straw has less pollution to the environment in the combustion process, and particularly, the use of the biomass boiler can reduce the pollutant discharge amount and the discharge concentration in waste gas to a greater extent. Then, if flue gas generated by the combustion of the biomass straws in the biomass boiler is directly discharged into the atmosphere without being treated, the problem that the concentration of particulate matters exceeds the standard still exists, and the requirement of environmental protection cannot be met.
In order to solve the problem that the particulate matters produced by the combustion of the biomass straws in the biomass boiler exceed the standard, the utility model discloses a pulse cloth bag dust collector of the biomass boiler is researched and developed.
Disclosure of Invention
The invention provides a pulse bag dust collector of a biomass boiler, aiming at solving the problem that particulate matters generated by combustion of biomass straws in the biomass boiler exceed the standard.
The utility model discloses a realize through following technical scheme:
a pulse cloth bag dust removal device of a biomass boiler is characterized by comprising an upper box body, a middle box body, an ash bucket, a blowing device, an ash conveying and discharging device and a local control cabinet;
the upper box body, the middle box body and the ash bucket are mutually communicated in space, an air bag, a dust removal channel and a bypass channel which are mutually communicated through a communication channel are arranged in the upper box body, and a lift valve and a bypass valve are arranged on the dust removal channel;
the two ends of the middle box body are respectively provided with a flue gas inlet and a flue gas outlet, and a filter bag is arranged in the middle box body;
the top end of the ash hopper is communicated with the lower end of the middle box body, the bottom end of the ash hopper is communicated with the ash conveying and discharging device, and a material level meter and a vibrating motor for monitoring the material level of dust are arranged in the ash hopper;
the blowing device is a pulse valve which is arranged in the upper box body and is connected with the air bag through a loose joint;
the ash conveying and discharging device is arranged below the ash hopper and comprises an ash discharger and a conveyor, the ash discharger is arranged at a feed opening of the ash hopper through a flange, and the conveyor is arranged below the ash discharger;
the local control cabinet is arranged at one side of the ash bucket and is electrically connected with the lift valve, the bypass valve, the pulse valve, the ash discharger, the conveyor and the vibrating motor.
Further, the lift valve and the bypass valve are pneumatic executive valves.
The middle box body is provided with a manhole door for overhauling and maintaining the middle box body.
The ash bucket is provided with a manhole door for maintaining the ash bucket and the motor inside.
The pulse valve is a RMF-Z series right-angle electromagnetic pulse valve, and the pulse valve is connected with the upper box body and the air bag through loose joints, so that the maintenance is convenient.
The air bag is provided with a pressure gauge, a safety valve and a water drain valve so as to ensure the safe and stable operation of the blowing device.
The conveyer is a spiral conveyer which is directly discharged onto the dust carrier and carries away the dust carrier with dust at regular time.
The local control cabinet is arranged on one side of the device, preferably one side of the ash hopper, and is convenient to operate, the local control cabinet is provided with an electric switch for controlling a lift valve, a bypass valve and a pulse valve, an ash discharge switch for controlling an ash discharger, a motor switch for controlling a screw conveyer and a vibration motor, and a PLC control program for controlling the action sequence of the lift valve, the bypass valve and the pulse valve, and an accident alarm device when a fault occurs is respectively and electrically connected with the lift valve, the bypass valve, the pulse valve, the ash discharger, the conveyer and the vibration motor.
The utility model adopts the structure of the upper box body, the middle box body and the dust hopper which are mutually communicated in space, wherein the upper box body and the middle box body are of a separated chamber structure, when in work, dust-containing smoke enters from a smoke inlet, the flow velocity is suddenly reduced due to the sudden expansion of the smoke volume, coarse dust particles settle into the dust hopper from the dust-containing smoke under the action of self weight, fine dust particles upwards enter a filter bag of the middle box body along with the turning of the smoke, the fine dust particles are choked on the outer wall of the filter bag due to the effects of various effects of filtering, collision, hooking, diffusion, static electricity and the like of the filter bag, and clean smoke enters the upper box body through the filter bag and is discharged by a draught fan through the outlet of the upper box body; the dust is deposited on the outer wall of the filter bag and is thickened continuously, so that the resistance of the filter bag is increased continuously, in order to ensure that the resistance of the dust remover is controlled within a limited range, when a blowing signal is given by a control cabinet, the pulse valve starts the electromagnetic pulse valve row by row according to a preset program, compressed air is released instantly after the pulse valve obtains the signal, strong reverse pulse airflow reversely blows the cloth bag, the filter bag expands and contracts rapidly, the dust attached to the outer surface of the filter bag is removed, and the dust sinks into the dust hopper under the action of gravity; when the dust is gathered at a certain material level in the dust hopper, the dust is discharged into the screw conveyor by the discharger, the screw conveyor is directly discharged to the dust carrier, and the dust carrier is carried away at regular time.
The utility model discloses a to the multiple dust removal of biomass straw burning back flue gas, can effectively reduce dust content and particulate matter concentration in the flue gas, area is little, operates steadily, low resistance, low energy consumption.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-upper box body, 2-middle box body, 3-ash hopper, 4-blowing device, 5-ash conveying and discharging device, 6-local control cabinet, 11-lift valve, 12-bypass valve, 21-flue gas inlet, 22-flue gas outlet, 23-filter bag, 31-material level meter, 32-vibration motor, 41-air bag, 42-pulse valve, 43-loose joint, 44-pressure gauge, 45-safety valve, 46-water drain valve, 51-ash unloading device and 52-conveyor.
Detailed Description
The present invention will be further explained with reference to the following embodiments and the attached drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present invention.
The pulse cloth bag dust removal device of the biomass boiler is characterized by comprising an upper box body 1, a middle box body 2, an ash bucket 3, a blowing device 4, an ash conveying and discharging device 5 and a local control cabinet 6, wherein the upper box body is provided with a plurality of through holes; the upper box body 1, the middle box body 2 and the ash bucket 3 are mutually communicated in space, an air bag 41, a dust removal channel and a bypass channel which are mutually communicated through a communication channel are arranged in the upper box body 1, and a lift valve 11 and a bypass valve 12 are arranged on the dust removal channel; the blowing device 4 is a pulse valve 42 which is arranged in the upper box body 1 and is connected with the air bag 41 through a movable joint 43;
two ends of the middle box body 2 are respectively provided with a flue gas inlet 21 and a flue gas outlet 22, and a filter bag 23 is arranged in the middle box body 2; the top end of the ash bucket 3 is communicated with the lower end of the middle box body 2, the bottom end of the ash bucket is communicated with the ash conveying and discharging device 5, and a material level meter 31 and a vibration motor 32 for monitoring the material level of dust are arranged in the ash bucket 3; the ash conveying and discharging device 5 is arranged below the ash hopper 3 and comprises an ash discharger 51 and a conveyor 52, the ash discharger 51 is arranged at a feed opening of the ash hopper 3 through a flange, and the conveyor 52 is a screw conveyor and is arranged below the ash discharger 51; one side of the local control cabinet installation is electrically connected to the lift valve 11, bypass valve 12, pulse valve 42, ash discharger 51, conveyor 52 and vibrating motor 32.
Wherein the poppet valve 11 and the bypass valve 12 are pneumatically actuated valves; the middle box body 2 and the ash bucket 3 are both provided with manhole doors; the pulse valve 42 is a RMF-Z series right-angle electromagnetic pulse valve; the air bag 41 is provided with a pressure gauge 44, a safety valve 45 and a water drain valve 46; the local control cabinet is provided with an operation panel, an electric switch for controlling a lift valve, a bypass valve and a pulse valve, an ash discharging switch for controlling an ash discharger, a motor switch for controlling a screw conveyor and a vibration motor, a PLC control program for controlling the action sequence of the lift valve, the bypass valve and the pulse valve, and an accident alarm device when a fault occurs; the local control cabinet and the PLC control program are the existing mature technologies, particularly the circuit part, belonging to the conventional prior art, and the description is not repeated here.
When the dust remover operates, after flue gas enters through a flue gas inlet, the flow velocity is suddenly reduced due to sudden expansion of the volume of the flue gas, and coarse dust particles are settled into an ash hopper from the flue gas containing dust under the action of the self weight of the coarse dust particles to perform primary dust removal; fine dust particles are turned upwards along with the flue gas and enter the filter bag of the middle box body, and the fine dust particles are choked on the outer wall of the filter bag due to the effects of various effects of screening, collision, hooking, diffusion, static electricity and the like of the filter bag, so that the secondary dust removal of the flue gas is realized; the clean flue gas enters the upper box body through the filter bag and is discharged through an outlet of the upper box body; in order to ensure that the resistance of the dust collector is controlled within a limited range, when a control cabinet gives out a blowing signal, the pulse valves are arranged row by row according to a preset program to start the electromagnetic pulse valves, after the pulse valves obtain the signal, compressed air is released instantly, strong reverse pulse airflow reversely blows the cloth bag, the filter bag expands and contracts rapidly, dust attached to the outer surface of the filter bag is removed, and the dust sinks into the dust hopper under the action of gravity; when the dust is gathered at a certain material level in the dust hopper, the dust is discharged into the screw conveyor by the discharger, and the screw conveyor is directly discharged to the dust carrier.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A pulse cloth bag dust removal device of a biomass boiler is characterized by comprising an upper box body, a middle box body, an ash bucket, a blowing device, an ash conveying and discharging device and a local control cabinet;
the upper box body, the middle box body and the ash bucket are mutually communicated in space, an air bag, a dust removal channel and a bypass channel which are mutually communicated through a communication channel are arranged in the upper box body, and a lift valve and a bypass valve are arranged on the dust removal channel;
the two ends of the middle box body are respectively provided with a flue gas inlet and a flue gas outlet, and a filter bag is arranged in the middle box body;
the top end of the ash hopper is communicated with the lower end of the middle box body, the bottom end of the ash hopper is communicated with the ash conveying and discharging device, and a material level meter and a vibrating motor for monitoring the material level of dust are arranged in the ash hopper;
the blowing device is a pulse valve which is arranged in the upper box body and is connected with the air bag through a loose joint;
the ash conveying and discharging device is arranged below the ash hopper and comprises an ash discharger and a conveyor, the ash discharger is arranged at a feed opening of the ash hopper through a flange, and the conveyor is arranged below the ash discharger;
the local control cabinet is arranged at one side of the ash bucket and is electrically connected with the lift valve, the bypass valve, the pulse valve, the ash discharger, the conveyor and the vibrating motor.
2. The pulse bag dust collector of biomass boiler according to claim 1, wherein said lift valve and bypass valve are pneumatic actuating valves.
3. The pulse bag dust collector of biomass boiler according to claim 1 or 2, characterized in that said middle box body is provided with a manhole door.
4. The pulse bag dust collector of biomass boiler according to claim 1 or 2, characterized in that said ash bucket is equipped with manhole door.
5. The pulse bag dust collector of biomass boiler according to claim 1 or 2, characterized in that said pulse valve is RMF-Z series right-angle electromagnetic pulse valve.
6. The pulse bag dust collector of biomass boiler according to claim 1 or 2, characterized in that the gas bag is provided with a pressure gauge, a safety valve and a water drain valve.
7. The pulse bag dust collector of biomass boiler according to claim 1 or 2, characterized in that said conveyor is a screw conveyor.
CN201920513198.1U 2019-04-16 2019-04-16 Pulse cloth bag dust removal device of biomass boiler Active CN209934291U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920513198.1U CN209934291U (en) 2019-04-16 2019-04-16 Pulse cloth bag dust removal device of biomass boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920513198.1U CN209934291U (en) 2019-04-16 2019-04-16 Pulse cloth bag dust removal device of biomass boiler

Publications (1)

Publication Number Publication Date
CN209934291U true CN209934291U (en) 2020-01-14

Family

ID=69128696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920513198.1U Active CN209934291U (en) 2019-04-16 2019-04-16 Pulse cloth bag dust removal device of biomass boiler

Country Status (1)

Country Link
CN (1) CN209934291U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A pulse bag dedusting device for biomass boiler

Effective date of registration: 20220629

Granted publication date: 20200114

Pledgee: Agricultural Bank of China Limited Changzhi Shangdang sub branch

Pledgor: SHANXI YITONG ENVIRONMENTAL ENERGY TECHNOLOGY GROUP Co.,Ltd.

Registration number: Y2022140000033