CN120079179B - Multistage cloth bag dust removal system for metal smelting flue gas treatment - Google Patents
Multistage cloth bag dust removal system for metal smelting flue gas treatmentInfo
- Publication number
- CN120079179B CN120079179B CN202510506276.5A CN202510506276A CN120079179B CN 120079179 B CN120079179 B CN 120079179B CN 202510506276 A CN202510506276 A CN 202510506276A CN 120079179 B CN120079179 B CN 120079179B
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- CN
- China
- Prior art keywords
- air
- filter
- chamber
- dust
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/444—Auxiliary equipment or operation thereof controlling filtration by flow measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/90—Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration or maintenance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/20—Arrangements for treatment or cleaning of waste gases
- F27D17/22—Arrangements for treatment or cleaning of waste gases for removing solid constituents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a multistage cloth bag dust removal system for metal smelting flue gas treatment, and belongs to the technical field of gas dust removal. Including the jar body that evenly is provided with a plurality of filter chambers along self circumference, all be equipped with in every filter chamber and separate the filter chamber into the dust filtration subassembly of lower floor's cavity and upper strata cavity, be equipped with the air inlet passageway in the interior bottom of jar body, be equipped with on the air inlet passageway with a plurality of first air intakes of each lower floor's cavity intercommunication, be equipped with the air-out passageway in the jar body, set up on the air-out passageway with a plurality of first air outlets of each upper strata cavity intercommunication, the upper strata cavity of one of two adjacent filter chambers passes through the intercommunication wind channel with the lower floor's cavity of another and is connected, can dismantle at jar body top and be provided with the cover. Through the control of first electronic gate, second electronic gate and third electronic gate, can realize the one-level filtration through equipment, the second grade filters and even tertiary filtration, when carrying out one-level filtration, second grade filtration operation, can overhaul the dirt filtration subassembly in the idle filter chamber.
Description
Technical Field
The invention relates to the technical field of gas dust removal, in particular to a multistage cloth bag dust removal system for metal smelting flue gas treatment.
Background
Metal smelting is an industrial process that extracts or refines metals by treating metal ores or recovering metal raw materials at high temperatures. The process not only produces target metal or alloy, but also generates various wastes to be treated properly, wherein the flue gas generated in the metal smelting process is the waste which can be treated by multiple purification and discharged outwards. In the treatment process of purifying the flue gas, firstly, particulate impurities in the flue gas need to be removed, and then, the chemical treatment process is adopted to remove the harmful gases in the flue gas.
The utility model provides a gas filtration equipment of wide application in industrial production, the patent of publication number CN116492781A discloses a sack cleaner, the power distribution box comprises a box body, ash discharge hopper, the air pocket, the air inlet, the gas outlet, the bottom welding of box is at the top of ash discharge hopper, air pocket fixed mounting is in the side of box, the side bottom at the box is seted up to the air inlet, the top at the opposite side of box is seted up to the gas outlet, the right side welding of air pocket has the one end of connecting pipe, the lower terminal surface welding of connecting pipe has a plurality of jetting pipe, the inner chamber middle part welding of box has the card to have a plurality of filter cartridges on the card, the one end of jetting pipe stretches into the upper port of filter cartridge, the flue gas is discharged from the gas outlet after the filter cartridge from the bottom up in the box, the dust particle in the flue gas is filtered in the filter cartridge, the pulse air current is blown off to the dust impurity on the surface of filter cartridge through jetting pipe intermittent type, can fall.
However, in the actual production process of the metal smelting flue gas, the pulse air flow cannot completely remove impurities on the filter cartridge, and in the flue gas with a certain temperature, the impurities are easy to adhere to each other, so that the filtering efficiency of the filter cartridge is gradually reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a multistage cloth bag dust removal system for metal smelting flue gas treatment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a multistage sack dust pelletizing system for metal smelting flue gas treatment, which comprises a tank body, evenly be provided with a plurality of filter chambers along self circumference in the jar body, all be provided with the dust filtration subassembly in every filter chamber, separate the filter chamber into lower floor's cavity and upper chamber through the dust filtration subassembly, be provided with the air inlet passageway in the coaxial bottom of jar body, be connected with the air-supply line with the air inlet passageway intercommunication on the jar body, a plurality of first air intakes with each lower floor's cavity one-to-one intercommunication have been seted up on the air inlet passageway, be provided with the first electronic gate who is used for switching each first air intake on the air inlet passageway, the internal coaxial air outlet passageway that is provided with of jar, the top of the jar body is connected with the air outlet pipe with the air outlet passageway intercommunication, a plurality of first air outlets with each upper chamber one-to-one intercommunication have been seted up on the air outlet passageway, be provided with the second electronic gate that is used for switching each first air outlet on the air outlet passageway, connect through the intercommunication wind channel between the adjacent, the one end and the lower floor's cavity intercommunication of one side of intercommunication wind channel, the other end and the upper chamber intercommunication of opposite side filter chamber, the one end that is provided with the first electronic gate that is used for switching upper chamber intercommunication wind channel, the one end that is close to upper chamber is provided with the electronic gate that is used for switching upper chamber, the three filter chamber that the top of the jar body is connected with the dust filtration chamber through the top, the filter chamber is dismantled the filter chamber, the filter chamber top that is dismantled.
Further, the dust filtering component comprises a connecting plate and a plurality of filter elements, a supporting plate is arranged in the filtering chamber, a plurality of through holes are formed in the supporting plate in a penetrating mode, the filter elements are detachably arranged in the supporting plate in a penetrating mode, the top ends of the filter elements are abutted to the connecting plate, and the connecting plate is detachably connected with the supporting plate;
still including blowing the dirt subassembly, blow the dirt subassembly and include the intake pipe and can dismantle the branch gas coil pipe that sets up in each filter chamber upper strata cavity, the one end and the branch gas coil pipe of intake pipe, the external pulse air supply of other end, be connected with a plurality of blow heads on the branch gas coil pipe, blow the shower nozzle and filter core one-to-one and give vent to anger the end vertical downwards.
Further, a hoisting hanging lug is fixedly arranged on the connecting plate, and a connecting piece for connecting the filter element is arranged on the connecting plate.
Further, the connecting piece is including rotating handle and lock joint ring, rotate the handle rotation and set up on the connecting plate, the lock joint ring is including rotating the rotation handle that sets up on the connecting plate and vertical direction slip sets up the expansion ring on the connecting plate, rotate the handle thread bush and establish in the outside of expansion ring, set firmly the elastic piece on the diapire of expansion ring, the one end outwards extension of expansion ring is kept away from to the elastic piece, the elastic piece is provided with the multichip along the even interval of expansion ring circumference, be provided with on the connecting plate and be used for upwards sliding in order to restrict the spacing portion of the inward shrink of expansion end of elastic piece along with the expansion ring, the hanging groove that the expansion end of round supply elastic piece stretches into has been coaxially seted up on the filter core.
Further, a plurality of support frames are fixedly arranged on the connecting plate, the support frames are positioned below the gas distribution coil, and a connecting hoop for connecting the gas distribution coil is arranged on the support frames.
Further, the bottom of the filter chamber is provided with a dust discharging component, the dust discharging component comprises a dust collecting hopper arranged at the bottom of each filter chamber, the bottom of the dust collecting hopper is connected with a dust discharging gate, and the outer side of the bottom of the tank body, which is positioned at the dust collecting hopper, is provided with a dust collecting hopper.
Further, a heat insulation chamber is arranged between two adjacent filter chambers in the tank body, the communication air duct is arranged in the heat insulation chamber, and two ends of the communication air duct are in sealing connection with the heat insulation chamber.
Further, the top of air inlet passageway and the bottom coaxial coupling of air-out passageway, the outside coaxial sleeve of air inlet passageway and air-out passageway is equipped with a cooling section of thick bamboo, and the upper portion and the heat-insulating chamber intercommunication of a cooling section of thick bamboo, the bottom of a cooling section of thick bamboo are connected with the inlet tube, and the heat-insulating chamber bottom is connected with the outlet pipe, and inlet tube and the external cooling system of outlet pipe.
Further, each upper chamber is internally provided with a dust sensor, and the dust sensor is electrically connected with the first electronic gate, the second electronic gate and the third electronic gate and is used for detecting the dust concentration of the air flow passing through the upper chamber in real time.
Further, each communication air duct is internally provided with an air flow sensor, the dust sensor is electrically connected with the first electronic gate, the second electronic gate and the third electronic gate, and the air flow sensor is used for detecting the air flow passing between two adjacent filter chambers in real time.
The multi-stage cloth bag dust removing system has the beneficial effects that the multi-stage cloth bag dust removing system is formed by the three filter chambers with the integrated structure, one, two or even three filter chambers can be connected into the smoke treatment system according to the requirements of the smoke treatment process, so that the primary filter treatment, the secondary filter treatment or even the tertiary filter treatment of smoke is realized, when the primary filter treatment and the secondary filter treatment processes are adopted, workers can overhaul dust filtering components in idle filter chambers, and the aim of overhauling the filter components with reduced dust removing and filtering states in the cloth bag dust removing system is fulfilled under the condition that equipment is not stopped.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a multistage bag-type dust removal system according to an embodiment of the present application;
FIG. 2 is a schematic view of a partial explosion structure of a multistage bag-type dust removal system according to an embodiment of the present application;
FIG. 3 is a schematic view of a partial cross-sectional structure of a multistage bag-type dust removal system according to an embodiment of the present application;
fig. 4 is a schematic diagram of a connection cross-sectional structure of a connection plate and a filter element in an embodiment of the present application.
Wherein, 1, a tank body, 11, a filter chamber, 12, a lower chamber, 13, an upper chamber, 14, a communicating air duct, 15, a tank cover 21, a connecting plate, 22, a filter element, 221, a hanging groove, 23, a supporting plate, 24, a perforation, 25, a rotating handle, 261, a movable ring, 262, an elastic sheet, 27, a connecting hoop, 3, an air inlet channel, 31, an air inlet pipe, 32, a first air inlet, 4, an air outlet channel, 41, an air outlet pipe, 42, a first air outlet, 51, an air inlet pipe, 52, an air separation coil pipe, 53, a blow head, 61, a dust collecting hopper, 62, a dust collecting hopper, 71, a heat insulation chamber, 72, a cooling cylinder, 73, an inlet pipe, 74, an outlet pipe and 75, a communicating hole.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a multistage cloth bag dust removing system for metal smelting flue gas treatment, which comprises a tank body 1, wherein a plurality of separation plates are fixedly arranged in the tank body 1, the tank body 1 is uniformly divided into a plurality of filter chambers 11 along the circumferential direction thereof by the plurality of separation plates, each filter chamber 11 is internally provided with a dust filtering component, the dust filtering components are used for filtering the passing flue gas through a cloth bag dust removing principle, the filter chambers 11 are divided into a lower chamber 12 and an upper chamber 13 by the dust filtering components, and the flue gas is communicated with the dust filtering components from bottom to top in each filter chamber 11. An air inlet channel 3 is coaxially arranged at the inner bottom of the tank body 1, an air inlet pipe 31 communicated with the air inlet channel 3 is connected to the tank body 1, a plurality of first air inlets 32 communicated with the lower chambers 12 of the filter chambers 11 are formed in the air inlet channel 3 one by one, and a first electronic gate for opening and closing the first air inlets 32 is arranged at each first air inlet 32 on the air inlet channel 3.
An air outlet channel 4 is coaxially and fixedly arranged in the tank body 1, an air outlet pipe 41 communicated with the air outlet channel 4 is connected to the top of the tank body 1, a plurality of first air outlets 42 communicated with each upper cavity 13 one by one are formed in the air outlet channel 4, and a second electronic gate for opening and closing the corresponding first air outlets 42 is arranged on each first air outlet 42 on the air outlet channel 4. Two adjacent filter chambers 11 are connected through a communication air duct 14, one end of the communication air duct 14 is communicated with the lower chamber 12 of one side filter chamber 11, the other end of the communication air duct 14 is communicated with the upper chamber 13 of the other side filter chamber 11, a plurality of filter chambers 11 are circularly communicated through a plurality of communication air ducts 14, and a third electronic gate for opening and closing the communication air duct 14 is arranged at one end, close to the upper chamber 13, of each communication air duct 14. The top of the tank body 1 is detachably provided with a tank cover 15, the tank cover 15 is provided with a plurality of tank covers 15 which are in one-to-one correspondence with each filter chamber 11, and the dust filtering components in the corresponding filter chambers 11 can be overhauled by detaching the tank cover 15.
Specifically, the dust filtering component comprises a connecting plate 21 and a plurality of filter elements 22, a circle of supporting ring is fixedly arranged on the inner wall of the filtering chamber 11, a supporting plate 23 is detachably arranged on the supporting ring, a plurality of through holes 24 are formed in the supporting plate 23 in a penetrating mode, the filter elements 22 are detachably arranged in the through holes 24 in the supporting plate 23 in a penetrating mode, the connecting plate 21 is arranged above the supporting plate 23, the top ends of the filter elements 22 are abutted to the connecting plate 21, and the connecting plate 21 is detachably connected with the supporting plate 23. The side edge of the supporting plate 23 is integrally turned outwards to form a scrap, the scrap is hooked on the supporting ring, the side edge of the connecting plate 21 is integrally turned to form a flanging, the supporting ring, the scrap and the flanging are all provided with through holes in a penetrating manner under the matching state of the supporting plate 23 and the connecting plate 21, and the through holes penetrate through the supporting ring, the scrap and the flanging through pins to connect and fix the supporting ring, the scrap and the flanging. After the can lid 15 is opened, the filter elements 22 can be removed for maintenance by removing the connecting plate 21.
A dust blowing assembly is also arranged in the tank body 1, and comprises an air inlet pipe 51 and an air distributing coil 52 which is detachably arranged in the upper chamber 13 of each filtering chamber 11. One end of the air inlet pipe 51 is externally connected with an air distribution coil 52 and the other end is externally connected with a pulse air source, a plurality of blow-off nozzles 53 are connected to the air distribution coil 52, the blow-off nozzles 53 are in one-to-one correspondence with the filter elements 22, and the air outlet ends vertically extend downwards into the filter elements 22. A pulse valve is arranged in each filter chamber 11. By opening the pulse valve, the pulse air flow can be blown into the filter element 22 by the blow head 53, and the filtered dust on the surface of the filter element 22 can be blown off. When the filter element 22 in each filter chamber 11 is disassembled, the filter element 22 can be disassembled only after the gas separation coil 52 is disassembled.
In the embodiment of the application, the bottom of the filtering chamber 11 is provided with a dust discharging assembly, the dust discharging assembly comprises dust hoppers 61 arranged at the bottom of each filtering chamber 11, the bottom of each dust hopper 61 is connected with a dust discharging gate, dust impurities blown off by blowing dust in each filtering chamber 11 fall into the dust hoppers 61, and the dust discharging gates are periodically opened to discharge the impurities in the dust hoppers 61. The bottom of the tank body 1 is positioned at the outer side of the dust collecting hopper 61, a dust collecting hopper 62 is arranged at the bottom of the tank body 1, impurities discharged from the dust collecting hopper 61 are collected through the dust collecting hopper 62, and dust collected in the dust collecting hopper 62 can be discharged through the arrangement of a screw conveyor at the bottom of the dust collecting hopper 62.
In the bag-type dust removing system provided by the embodiment of the application, the flue gas can be subjected to primary, secondary and even multi-stage treatment according to the flue gas treatment process. Specifically, the number of the filter chambers 11 in the tank body 1 is three, the system can realize primary, secondary and tertiary flue gas filtration treatment, when the system is carrying out primary and secondary treatment, the idle filter chambers 11 can be utilized to timely overhaul the filter elements 22 in the filter chambers 11, the filtration effect on impurities in flue gas is improved, and meanwhile, the overhaul work of the filter elements 22 can be completed under the condition that the equipment is not stopped.
In the embodiment of the application, the hanging lugs are fixedly arranged on the connecting plate 21 through welding, and the connecting plate 21 is provided with a connecting piece for connecting the filter element 22. After the connecting plate 21 is placed on the supporting plate 23, the filter element 22 is connected by adopting a connecting piece, the connecting plate 21 and the filter element 22 on the connecting plate 21 can be integrally lifted out of the tank body 1 by lifting the whole connecting plate 21 upwards, and the overhauling efficiency of the filter can be effectively improved.
Referring to fig. 4, the connecting piece includes a rotating handle 25 and a fastening ring, the rotating handle 25 is rotatably mounted on the connecting plate 21, the middle of the rotating handle 25 is penetrated, the fastening ring includes a movable ring 261, the movable ring 261 is vertically guided and slidably mounted on the connecting plate 21, the top end of the movable ring 261 passes through the rotating handle 25 and the movable ring 261 is in threaded connection with the rotating handle 25, an elastic sheet 262 is fixedly mounted on the bottom wall of the movable ring 261, one end of the elastic sheet 262 far away from the movable ring 261 extends outwards to one side far away from the center of the movable ring 261, a plurality of elastic sheets are uniformly arranged at intervals along the circumference of the movable ring 261, a circle of limiting parts are coaxially fixed on the connecting plate 21, the elastic sheet 262 is kept in abutting connection with the limiting parts, the movable end of the elastic sheet 262 is upwards lifted up along with the movable ring 261, the movable end of the elastic sheet 262 is downwards along with the movable ring 261, and the elastic sheet 262 outwards extends under the action of elasticity. The filter element 22 is coaxially provided with a circle of hanging grooves 221 into which the movable ends of the elastic sheets 262 extend, when the connecting plate 21 is placed above the filter element 22, the movable rings 261 are lowered, so that the movable ends of the elastic sheets 262 extend outwards, and the movable ends of the elastic sheets 262 are clamped into the connecting grooves, so that the filter element 22 is lifted together when the connecting plate 21 is lifted. When the filter element 22 and the connecting plate 21 need to be disassembled, the movable ring 261 can be lifted upwards by rotating the rotary handle 25, the movable ends of the elastic pieces 262 can be withdrawn from the connecting grooves, the connection relation between the connecting plate 21 and the filter element 22 is released, and the disassembly is convenient.
Further, a plurality of support frames are further fixedly arranged on the connecting plate 21, the top of each support frame is fixedly provided with a connecting anchor ear 27, each support frame is positioned between the gas distribution coil 52 and the connecting disc, and the connecting anchor ear 27 is used for connecting and fixing the gas distribution coil 52. The support frame can support the air distribution coil 52, so that the end part of the air distribution coil 52 is prevented from bending and deforming under the action of gravity. Meanwhile, after the connection part of the air separation coil 52 is disassembled, the connection plate 21 is lifted, so that the air separation coil 52 can be lifted out of the filter chamber 11 together, and the disassembly efficiency of the dust filtering assembly is improved.
Further, the heat insulation chamber 71 can be formed between two adjacent filter chambers 11 in the tank body 1 through two spacers, the communication air duct 14 is installed in the heat insulation chamber 71, so that the flue gas heat between the two filter chambers 11 can be effectively isolated, and when the dust filtering component in one filter chamber 11 is overhauled, the heat in the adjacent filter chamber 11 can be effectively isolated, and the scalding by the adjacent filter chamber 11 in the overhauling process is avoided.
In the embodiment of the application, the top end of the air inlet channel 3 is coaxially connected with the bottom end of the air outlet channel 4, the outer sides of the air inlet channel 3 and the air outlet channel 4 are coaxially sleeved with a cooling cylinder 72, the upper part of the cooling cylinder 72 is communicated with a heat insulation chamber 71 through a communication hole 75, the bottom of the cooling cylinder 72 is connected with an inlet pipe 73, the bottom of the heat insulation chamber 71 is connected with an outlet pipe 74, and the inlet pipe 73 and the outlet pipe 74 are externally connected with a cooling system. The cooling medium is introduced into the gaps between the cooling cylinder 72, the air inlet channel 3 and the air outlet channel 4 through the cooling system, the cooling medium is filled in the cooling cylinder 72 from bottom to top, then enters the heat insulation chamber 71 from the upper end of the cooling cylinder 72, the outlet pipe 74 can be provided with a valve, after part of the cooling medium is filled in the heat insulation chamber 71, the cooling medium is discharged from the outlet pipe 74, the cooling medium is utilized to cool the air inlet channel 3, the air outlet channel 4 and the flue gas passing through the air channel 14, the phenomenon that the flue gas causes a sticking bag to the filter element 22 is reduced, and the cooling medium can be cooling water or cooling air. The embodiment of the application can be simultaneously suitable for cooling the smoke of the multi-stage filter chamber 11 through a set of cooling cylinders 72, thereby saving equipment cost.
Further, a dust sensor is disposed in each upper chamber 13, and the dust sensor is electrically connected to the first electronic shutter, the second electronic shutter and the third electronic shutter, and is used for detecting the dust concentration of the air flow passing through the upper chamber 13 in real time. When the bag dust removing system adopts a secondary filtering process, a first electronic gate corresponding to a first filtering chamber 11 where smoke enters is opened, other first electronic gates are closed, a third electronic gate communicated with an air duct 14 between the first filtering chamber 11 and a second filtering chamber 11 is opened, other third electronic gates are closed, a second electronic gate corresponding to the second filtering chamber 11 is opened, and other second electronic gates are closed.
When the dust sensor in the first filtering chamber 11 detects that the dust concentration in the smoke dust after the current filtering chamber 11 is filtered exceeds a standard threshold value, the first electronic gate of the current filtering chamber 11 is controlled to be closed, the third electronic gate between the current filtering chamber 11 and the lower filtering chamber 11 is controlled to be closed, the second electronic gate of the lower filtering chamber 11 is controlled to be closed, the first electronic gate of the lower filtering chamber 11 is opened, the third electronic gate between the lower filtering chamber 11 and the third filtering chamber 11 is opened, and the second electronic gate of the third filtering chamber 11 is opened. Thereby realizing the real-time dust concentration control of the filtered flue gas in the first-stage filter chamber 11, and controlling the level rotation of each filter chamber 11 in the cloth bag dust removal system, and avoiding the reduction of the dust removal and filtration effect of the cloth bag dust removal system caused by the breakage of the filter element 22 in the first-stage filter chamber 11.
Further, an air flow sensor is disposed in each communication air duct 14, and the dust sensor is electrically connected to the first electronic shutter, the second electronic shutter and the third electronic shutter, and the air flow sensor is used for detecting the air flow passing between two adjacent filter chambers 11 in real time. When the two-stage filtering process is adopted in the bag dust removing system, when the air flow sensor in the first filtering chamber 11 detects that the air flow rate of the air introduced into the lower filtering chamber 11 after the filtering of the current filtering chamber 11 is lower than the standard threshold value, the first electronic gate of the current filtering chamber 11 is controlled to be closed, the third electronic gate between the current filtering chamber 11 and the lower filtering chamber 11 is controlled to be closed, the second electronic gate of the lower filtering chamber 11 is controlled to be closed, the first electronic gate of the lower filtering chamber 11 is opened, the third electronic gate between the lower filtering chamber 11 and the third filtering chamber 11 is opened, and the second electronic gate of the third filtering chamber 11 is opened. Therefore, the level alternation of each filter chamber 11 in the cloth bag dust removing system is controlled by the real-time gas flow rate of the flue gas after the filtration in the first-stage filter chamber 11, and the dust removing and filtering power reduction of the cloth bag dust removing system caused by the occurrence of the pasting of the filter element 22 in the first-stage filter chamber 11 is avoided.
The dust sensor and the air flow sensor are jointly arranged, so that the working state of the bag-type dust collector can be monitored in multiple aspects, each filtering chamber 11 is subjected to level rotation in time, the filtering chamber 11 with reduced state is idled out, and workers overhauls the filtering chamber 11 with reduced state under the normal working state of other filtering chambers 11, so that the work of the bag-type dust collection system is recovered in time.
It will be apparent to those skilled in the art that while preferred embodiments of the present invention have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510506276.5A CN120079179B (en) | 2025-04-22 | 2025-04-22 | Multistage cloth bag dust removal system for metal smelting flue gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510506276.5A CN120079179B (en) | 2025-04-22 | 2025-04-22 | Multistage cloth bag dust removal system for metal smelting flue gas treatment |
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| Publication Number | Publication Date |
|---|---|
| CN120079179A CN120079179A (en) | 2025-06-03 |
| CN120079179B true CN120079179B (en) | 2025-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510506276.5A Active CN120079179B (en) | 2025-04-22 | 2025-04-22 | Multistage cloth bag dust removal system for metal smelting flue gas treatment |
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| CN106669301B (en) * | 2016-09-13 | 2022-06-07 | 沈阳隆基电磁科技股份有限公司 | Vacuum dust removal equipment for single crystal growth furnace |
| CN207307440U (en) * | 2017-06-30 | 2018-05-04 | 广州市亿康环保设备有限公司 | A kind of combined type bag-type dust removal system |
| CN118512845B (en) * | 2024-07-23 | 2024-09-20 | 山西瑞洁环保科技股份有限公司 | Flat cloth bag pulse dust collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219128454U (en) * | 2022-08-11 | 2023-06-06 | 江苏瑞一量子研究院有限公司 | A multi-stage filter group for water body |
| CN222336088U (en) * | 2024-04-30 | 2025-01-10 | 广西华锐工程设计有限公司 | Environment-friendly treatment system for flue gas of blast furnace hot blast stove |
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| CN120079179A (en) | 2025-06-03 |
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