CN112076555A - Ultra-long filter bag dust collector - Google Patents
Ultra-long filter bag dust collector Download PDFInfo
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- CN112076555A CN112076555A CN202011075328.1A CN202011075328A CN112076555A CN 112076555 A CN112076555 A CN 112076555A CN 202011075328 A CN202011075328 A CN 202011075328A CN 112076555 A CN112076555 A CN 112076555A
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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
- 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
- B01D46/4272—Special valve constructions adapted to filters or filter elements
Abstract
A super-long filter bag dust remover comprises a pulse gas generating device and a super-long filter bag dust removing device; the pulse gas generating device comprises a large-flow instantaneous opening valve and a large-flow delay instantaneous closing valve which are connected in series, the large-flow instantaneous opening valve and the large-flow delay instantaneous closing valve are designed by a brand new metal structure, the pulse gas generating device has the characteristics of high working pressure and small pressure drop, and the highest working pressure of the pulse gas generating device reaches 4.0MPa, so that the requirement of improving the pressure of a gas bag to reduce the volume of the gas bag is fully met; the ultra-long filter bag dust removal device is provided with a plurality of air guide devices connected in series, the air guide devices connected in series can effectively convey pulse compressed air to the bottom of the ultra-long filter bag dust removal device, the maximum air conveying length of the ultra-long filter bag dust removal device reaches more than 18 meters, and meanwhile, the ultra-long filter bag dust removal device has the characteristics of high air conveying energy density and uniform air conveying, can enable the whole ultra-long filter bag to generate instantaneous strong shaking, and has an excellent dust removal effect; the ultra-long filter bag dust remover successfully solves the technical problem caused by the limited area of the filter bag dust removal and discharge transformation of the production tail gas in the existing industrial and mining enterprises.
Description
Technical Field
The invention relates to the technical field of industrial dust removal, in particular to an ultra-long filter bag dust remover.
Background
After decades of development, the structure and dust removal process of the bag-type dust collector become mature day by day, and the bag-type dust collector is widely applied to various fields of industrial production; however, the bag-type dust collector still has some defects in the actual popularization and application process: if the existing pulse valve for the bag-type dust collector adopts a diaphragm type structure, the problem of short service life exists, meanwhile, the highest working pressure of the pulse valve can only be 0.6MPa, and in order to ensure the pulse dust collection effect of the bag-type dust collector, a large amount of compressed air needs to be output by pulse every time, so that an air bag with large capacity needs to be arranged.
In recent years, along with the gradual enhancement of domestic environmental protection, the prior industrial and mining enterprises which are not provided with the bag-type dust remover are required to be additionally provided with the bag-type dust remover so as to improve the emission quality of the production tail gas; however, in the process, a very serious technical problem is encountered: the area of the bag-type dust collector is not reserved in the horizontal layout of production equipment of the original industrial and mining enterprises, so that the area of the bag-type dust collector which can be used for adding the bag-type dust collector is extremely limited, and the bag-type dust collector is added in the limited area, which means that the number of dust-removing bags and the volume of an air bag can be reduced, but the contradiction between the required excess air volume of the bag-type dust collector and the larger volume of the air bag is not adjustable; in order to solve the problem, the technical scheme that the overlength filter bag is adopted to ensure the air passing amount required by the bag-type dust collector and the air bag volume is reduced by improving the air bag pressure becomes a necessary choice.
However, another technical problem is encountered when an ultra-long filter bag is adopted, the length of the filter bag which can be adapted to the existing blowing pipe structure for pulse dust removal is only 8-9 meters, and when the length of the filter bag is continuously lengthened, compressed air does work because the compressed air is already expanded at the upper part of the filter bag in the pulse dust removal process, so that the compressed air cannot reach the lower part of the filter bag, and dust accumulated at the lower part of the filter bag cannot be removed because the lower part of the filter bag cannot effectively shake in the pulse dust removal process; to solve the problem, patent No. CN101172208B discloses a compressed air injection device using an air amplifier, which essentially converts compressed air into high-speed injection air flow to achieve the purpose of increasing the air conveying distance; however, the practical application effect of the invention patent is adopted, the longest length of the filter bag can be only prolonged to about 12 meters, and meanwhile, the whole shaking strength of the filter bag is lower due to the lower energy density of the high-speed jet airflow, so that the dust removal effect of the filter bag is poorer; meanwhile, the scheme of increasing the pressure of the air bag to reduce the volume of the air bag is adopted, and the implementation cannot be realized due to the limitation of the highest working pressure of 0.6MPa of the existing diaphragm type pulse valve; therefore, the bag-type dust remover is additionally arranged in a limited area, and the emission and the transformation of the production tail gas of the existing industrial and mining enterprises are carried out, so that the technical problem which cannot be overcome at present in the technical field of industrial dust removal is solved.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses an ultra-long filter bag dust remover, which comprises a pulse gas generating device and an ultra-long filter bag dust removing device; the pulse gas generating device comprises a large-flow instantaneous opening valve and a large-flow delay instantaneous closing valve which are connected in series, the large-flow instantaneous opening valve and the large-flow delay instantaneous closing valve are designed by a brand new metal structure, the pulse gas generating device has the characteristics of high working pressure and small pressure drop, and the highest working pressure of the pulse gas generating device reaches 4.0MPa, so that the technical requirement of improving the pressure of a gas bag to reduce the volume of the gas bag is fully met; the ultra-long filter bag dust removal device is provided with a plurality of air guide devices connected in series, the air guide devices connected in series can effectively convey pulse compressed air to the ultra-long filter bag dust removal device, the maximum air conveying length of the ultra-long filter bag dust removal device reaches more than 18 meters, and meanwhile, the ultra-long filter bag dust removal device has the characteristics of high air conveying energy density and uniform air conveying, can enable the whole ultra-long filter bag to generate instantaneous strong shaking, and has an excellent dust removal effect.
In order to realize the purpose, the invention adopts the following technical scheme: a super-long filter bag dust remover comprises a pulse gas generating device and a super-long filter bag dust removing device; the pulse gas generating device comprises a large-flow instantaneous opening valve and a large-flow delay instantaneous closing valve which are connected in series, pulse compressed air is generated by the large-flow instantaneous opening valve and the large-flow delay instantaneous closing valve which are connected in series, and the pulse compressed air is conveyed to the ultralong filter bag dust removal device through the working air pipe; the ultra-long filter bag dust removal device is characterized in that an ultra-long filter bag with the length of 18 meters is arranged outside the ultra-long filter bag dust removal device, a plurality of air guide devices connected in series are arranged inside the ultra-long filter bag dust removal device, pulse compressed air is uniformly conveyed into the ultra-long filter bag dust removal device through the air guide devices connected in series, and the pulse compressed air expands in the ultra-long filter bag dust removal device to do work, so that the ultra-long filter bag dust removal device generates instantaneous strong shaking to remove dust collection of the ultra-long.
Further, the large-flow instant-open valve comprises an instant-open valve body, an instant-open valve core, an instant-open valve left end cover and an instant-open valve right end cover;
the left side and the right side of the instantaneous-opening valve body are provided with a circular and communicated instantaneous-opening valve left cavity and an instantaneous-opening valve right cavity, the side wall of the instantaneous-opening valve left cavity is provided with an instantaneous-opening valve working air outlet, and the area of the instantaneous-opening valve working air outlet is the same as or close to the cross section area of an air conveying pipeline of the pulse air generating device so as to ensure that the air conveying resistance of the pulse air generating device is the lowest;
the instantaneous-opening valve core is cylindrical, an instantaneous-opening valve piston is arranged on the right side of the instantaneous-opening valve core, a plurality of instantaneous-opening valve piston air guide holes are formed in the instantaneous-opening valve piston, a plurality of instantaneous-opening valve core anti-rotation guide posts are fixedly arranged on the left end face of the instantaneous-opening valve piston, and the instantaneous-opening valve core anti-rotation guide posts are used for preventing the instantaneous-opening valve core from rotating around the axis of the instantaneous-; the instantaneous-open valve core is movably arranged at the connecting part between the instantaneous-open valve left cavity and the instantaneous-open valve right cavity of the instantaneous-open valve body, and the piston of the instantaneous-open valve core is movably arranged in the instantaneous-open valve right cavity;
the middle of the left end cover of the instantaneous opening valve is provided with an instantaneous opening valve working air inlet, the area of the instantaneous opening valve working air inlet is equal to that of the instantaneous opening valve working air outlet, and the periphery of the instantaneous opening valve working air inlet is provided with a plurality of instantaneous opening valve guide post holes corresponding to the anti-rotation guide posts of the instantaneous opening valve core; the left end cover of the instantaneous opening valve is fixedly arranged at the left end part of the instantaneous opening valve body, and the anti-rotation guide post of the valve core of the instantaneous opening valve is arranged in the guide post hole of the instantaneous opening valve in a sliding manner; when the large-flow instant-open valve is in a closed state, the left end part of the valve core of the instant-open valve is contacted with the left end cover of the instant-open valve;
the middle of the right end cover of the instantaneous opening valve is provided with an instantaneous opening valve closing control air hole, and the right end cover of the instantaneous opening valve is fixedly arranged at the right end part of the valve body of the instantaneous opening valve; when the large-flow instant-open valve is in an open state, the end part of the instant-open valve piston on the right side of the instant-open valve core is contacted with the right end cover of the instant-open valve;
when the large-flow instant-open valve works, an instant-open valve working air inlet hole in the middle of the left end cover of the large-flow instant-open valve working air inlet pipe is connected with a working air inlet pipeline, an instant-open valve closing control air hole in the middle of the right end cover of the large-flow instant-open valve working air inlet pipe is connected with a control air pipe, and an instant-open valve working air outlet hole of the; under the normal state, the large-flow instant open valve is in a closed state; the working principle is as follows: when the large-flow instant-open valve needs to be opened, the instant-open valve closing control air hole is communicated with the atmosphere, the left end face of the instant-open valve core pushes the instant-open valve core to move rightwards rapidly under the action of the huge pressure and flow of working air, and when the left end face of the instant-open valve core moves to the instant-open valve left cavity, the instant-open valve working air inlet hole is communicated with the instant-open valve working air outlet hole through the instant-open valve left cavity, but the communication resistance is slightly large; the instantaneous opening valve core moves rightwards continuously and quickly, and the instantaneous opening valve working air inlet hole is communicated with the instantaneous opening valve working air outlet hole completely; during the opening process of the large-flow instant-open valve, the pressure and the flow of working gas on the left end face of the valve core of the instant-open valve are very high, so that the valve core of the instant-open valve is also very high in moving speed, and the opening action is completed instantly; when the instantaneous-open valve core moves rightwards, the instantaneous-open valve piston on the right side also moves rightwards, at the moment, a part of air on the right side of the instantaneous-open valve piston enters the left side of the instantaneous-open valve piston through the instantaneous-open valve piston air guide hole, and the other part of air is exhausted to the atmosphere through the instantaneous-open valve shutoff control air hole; when the large-flow instant-open valve needs to be closed, the instant-open valve closing control air hole is communicated with the control air through the control air passage, the pressure of the control air is equal to that of the working air, at the moment, the area difference of the anti-rotation guide posts of the instant-open valve core exists on the left end surface and the right end surface of the instant-open valve core, the pressure difference exists on the left end surface and the right end surface of the instant-open valve core, the instant-open valve core moves leftwards under the action of.
Furthermore, the large-flow delay instantaneous closing valve comprises an instantaneous closing valve body, an instantaneous closing valve core, an instantaneous closing valve left end cover and an instantaneous closing valve right end cover;
the left side of the valve body of the instantaneous closing valve is provided with a left instantaneous closing valve cavity, the right side of the valve body of the instantaneous closing valve is provided with a right instantaneous closing valve cavity, the side wall of the right instantaneous closing valve cavity is provided with a through working through hole of the instantaneous closing valve, and the area of the working through hole of the instantaneous closing valve is the same as or close to the cross section area of a gas transmission pipeline of the pulse gas generating device so as to ensure that the gas transmission resistance of the pulse gas generating device is the; when the large-flow delay instantaneous closing valve works, the working through hole of the instantaneous closing valve, which is communicated with the side wall of the right chamber of the instantaneous closing valve, is connected with a working gas circuit, and a working gas inlet and a working gas outlet are not distinguished;
the instantaneous closing valve core is cylindrical, an instantaneous closing valve piston is arranged at the left end of the instantaneous closing valve core, a plurality of instantaneous closing valve piston air guide holes are formed in the instantaneous closing valve piston, a plurality of instantaneous closing valve core anti-rotation guide posts are fixedly arranged on the left end face of the instantaneous closing valve piston, and the instantaneous closing valve core anti-rotation guide posts are used for preventing the instantaneous closing valve core from rotating around the axis of the instantaneous closing valve core in the working process; the upper side and the lower side of the valve core of the instantaneous closing valve are also symmetrically provided with instantaneous closing valve core air grooves adjacent to an instantaneous closing valve piston, the instantaneous closing valve core air grooves are used for communicating the large-flow delay instantaneous closing valve with working air passing through the inside of the instantaneous closing valve when the instantaneous closing valve is closed, and the instantaneous closing of the large-flow delay instantaneous closing valve is realized by utilizing the characteristics that the working air passing through the inside of the instantaneous closing valve has high pressure and large flow; the right side of the valve core air groove of the instantaneous closing valve is provided with a through valve core working air through hole of the instantaneous closing valve, and the area of the valve core working air through hole of the instantaneous closing valve is equal to that of the working through hole of the instantaneous closing valve, so that the lowest resistance when working air passes through the large-flow delay instantaneous closing valve is ensured; the valve core of the instantaneous closing valve is movably arranged in the right chamber of the instantaneous closing valve, and the piston of the instantaneous closing valve is movably arranged in the left chamber of the instantaneous closing valve;
the middle of the left end cover of the instantaneous closing valve is provided with an instantaneous closing valve closing control air hole which is used for inputting large-flow delay instantaneous closing valve closing control air, and the periphery of the instantaneous closing valve is provided with a plurality of instantaneous closing valve guide post holes corresponding to the anti-rotation guide posts of the valve core of the instantaneous closing valve; the left end cover of the instantaneous closing valve is fixedly arranged at the left end part of the valve body of the instantaneous closing valve, and the valve core anti-rotation guide post of the instantaneous closing valve is arranged in the guide post hole of the instantaneous closing valve in a sliding manner; when the large-flow delay instantaneous closing valve is in an open state, an instantaneous closing valve piston at the left end of a valve core of the instantaneous closing valve is in contact with a left end cover of the instantaneous closing valve;
the middle of the right end cover of the instantaneous closing valve is provided with an instantaneous closing valve opening control air hole which is used for inputting large-flow delay instantaneous closing valve opening control air; the right end cover of the instantaneous closing valve is fixedly arranged at the right end part of the valve body of the instantaneous closing valve; when the large-flow delay instantaneous closing valve is in a closed state, the right side end of the valve core of the instantaneous closing valve is contacted with the right end cover of the instantaneous closing valve;
when the large-flow delay instantaneous closing valve works, the instantaneous closing valve in the middle of the left end cover closes the control air hole and the instantaneous closing valve in the middle of the right end cover opens the control air hole to be respectively connected with control air and atmosphere or respectively connected with atmosphere and control air, and an adjustable throttle valve is arranged on a pipeline of a control air pipe connected with the instantaneous closing valve in the middle of the left end cover and closing the control air hole; the working through hole of the instantaneous closing valve body is respectively connected with a working gas inlet pipeline and a working gas outlet pipeline; under the normal state, the large-flow delay instantaneous closing valve is in an opening state, the instantaneous closing valve closes the control air hole and is connected to the atmosphere, and the instantaneous closing valve opens the control air hole and is communicated with the control air; the working principle is as follows: when the large-flow delay instantaneous closing valve needs to be closed, the instantaneous closing valve closes the control air hole to be communicated with the control air, the instantaneous closing valve opens the control air hole to be communicated with the atmosphere, the valve core of the instantaneous closing valve moves rightwards under the action of the control air pressure, and because the control air pipe pipeline connected with the closed control air hole is provided with the adjustable throttle valve, the flow rate of the closed control air is small, the moving speed of the valve core of the instantaneous closing valve is slow, and the moving speed of the valve core of the instantaneous closing valve determines the closing delay time of the large-flow delay instantaneous closing valve; when the valve core of the instantaneous closing valve moves rightwards continuously, and the valve core air groove of the instantaneous closing valve is communicated with the working through hole of the instantaneous closing valve, the working air flowing through the large-flow time-delay instantaneous closing valve enters the left chamber of the instantaneous closing valve through the valve core air groove of the instantaneous closing valve and then enters the left side surface of the piston of the instantaneous closing valve through the air guide hole of the piston of the instantaneous closing valve, the valve core of the instantaneous closing valve is pushed to move rightwards quickly, the large-flow time-delay instantaneous closing valve is closed, and the working air has huge pressure and flow, so the closing process of the large-flow time-delay; the large-flow delay instantaneous-closing valve has the functions of delaying and then quickly closing, and the delay time determines the amount of compressed air output by the pulse gas generating device; when the large-flow delay instantaneous closing valve is opened, the instantaneous closing valve closes the control air hole to be communicated with the atmosphere, the instantaneous closing valve opens the control air hole to be communicated with the control air, the valve core of the instantaneous closing valve moves leftwards under the action of the pressure of the control air, and the large-flow delay instantaneous closing valve is opened again;
the large-flow instant-opening valve and the large-flow delay instant-closing valve are matched for use during working and are sequentially connected in series through a working gas pipeline; the large-flow instant-open valve is in a closed state in a normal state, and the large-flow delay instant-close valve is in an open state; when the pulse gas generating device generates pulse gas, the large-flow instantaneous opening valve is instantly opened, and the large-flow delay instantaneous closing valve is instantly closed after delaying, wherein the delay time of the large-flow delay instantaneous closing valve determines the output quantity of the pulse gas, and the delay time of the large-flow delay instantaneous closing valve is determined by the adjustment of an adjustable throttle valve on a control gas pipeline connected with an instantaneous closing valve closing control air hole; after the pulse gas generating device generates pulse gas, the pulse gas generating device returns to the initial state of the turn-off of the large-flow instant-open valve and the turn-on of the large-flow delayed instant-close valve after delaying for a plurality of seconds; in the process that the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve are restored to the initial state, the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve are in the transition moment of opening, at the moment, the exhaust port of the pulse gas generating device communicated with the atmosphere emits large exhaust sound, and when the exhaust sound disappears, the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve are completely restored to the initial state.
Furthermore, an instantaneous-opening valve spring cavity is formed in the right end face of the right end cover of the instantaneous-opening valve, an instantaneous-opening valve return spring is arranged in the instantaneous-opening valve spring cavity, and the instantaneous-opening valve return spring is used for ensuring that the large-flow instantaneous-opening valve is in a shut-off state in a non-working state; the right end face of the right end cover of the instantaneous closing valve is provided with an instantaneous closing valve spring cavity, an instantaneous closing valve return spring is arranged in the instantaneous closing valve spring cavity, and the instantaneous closing valve return spring is used for ensuring that the large-flow delay instantaneous closing valve is in an open state under a non-working state.
Furthermore, the pulse gas generating device also comprises a gas source, a gas bag, an air filter, a switch valve, a reversing valve, a one-way valve A, a pressure stabilizing valve, an adjustable throttle valve and a one-way valve B;
the gas source is connected with the gas bag through a pipeline; the gas bag is provided with a control gas circuit and a working gas circuit, the control gas circuit is used for providing a control gas source for a large-flow instant-opening valve and a large-flow delay instant-closing valve, and the working gas circuit is used for providing a conveying channel for pulse gas; the control gas circuit is sequentially connected with an air filter, a switch valve and a reversing valve through a gas pipe; the reversing valve outputs two control gas paths, one control gas path is respectively connected to an instantaneous opening valve closing control gas hole of the large-flow instantaneous opening valve and an instantaneous closing valve opening control gas hole of the large-flow delay instantaneous closing valve, the other control gas path is connected to an instantaneous closing valve closing control gas hole of the large-flow delay instantaneous closing valve through a parallel gas path, and the two control gas paths can be switched through the reversing valve to be respectively communicated with the control gas; one path of the parallel gas path is sequentially connected with a one-way valve A, a pressure stabilizing valve and an adjustable throttle valve through a gas pipe, and the pressure stabilizing valve is used for keeping the working pressure of the front end of the adjustable throttle valve stable all the time and keeping the working flow of the gas after the adjustable throttle valve is adjusted stable; the other path is connected with a one-way valve B through an air pipe and used for exhausting when the large-flow delay instant-closing valve is opened; the working gas path is communicated with an instantaneous opening valve working gas inlet of the large-flow instantaneous opening valve, an instantaneous opening valve working gas outlet of the large-flow delay instantaneous closing valve and an inlet of an instantaneous closing valve working through hole of the large-flow delay instantaneous closing valve in sequence through pipelines, and is finally connected to a working gas pipe through an outlet of the instantaneous closing valve working through hole through a pipeline; the reversing valve is also connected with an air discharge silencer through an air pipe, and the air discharge silencer is used for reducing noise generated during air discharge.
Furthermore, the gas circuit connected with the instantaneous closing valve opening control gas hole is a parallel gas circuit, wherein one path is sequentially provided with a one-way valve and an adjustable throttle valve, and the other path is provided with a one-way valve; the purpose of connecting the instantaneous closing valve opening control air hole with the parallel air circuit is to ensure that the opening action of the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve is executed after the closing action of the large-flow instantaneous opening valve is finished in the process of recovering the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve to the initial state, so that the problem that the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve are all in the opening state in the process of recovering the large-flow instantaneous opening valve and the large-flow delayed instantaneous closing valve to the initial state is solved, and the.
Further, the super-long filter bag dust removal device comprises a working air pipe, a perforated plate and a super-long filter bag combination; the ultra-long filter bag combination array is provided with a plurality of ultra-long filter bags which are fixedly combined on the lower side of the perforated plate; the working air pipe is provided with a plurality of injection pipes which are correspondingly arranged at the upper parts of the combination of the plurality of super-long filter bags; the ultra-long filter bag combination comprises a filter bag cage frame combination and an ultra-long filter bag; the length of the super-long filter bag is 18 meters or more, and the super-long filter bag is fixedly arranged on the outer side of the filter bag cage combination; the filter bag cage assembly comprises an upper cage, a middle cage and a lower cage; more than one middle cage frame is arranged; the upper cage frame, the middle cage frame and the lower cage frame are sequentially arranged from top to bottom and fixedly connected.
Further, the upper cage comprises a cage head, upper cage longitudinal ribs, an upper cage fixing ring, a cage connecting ring and an upper cage air guide pipe; the cage fixing ring is fixedly arranged on the lower part of the cage head, and is connected with the cage connecting ring into a whole through the upper cage fixing ring; the upper cage frame air duct is fixedly arranged in the middle of the upper cage frame through an upper cage frame fixing ring; the upper cage frame air duct is tubular, the side wall of the upper cage frame air duct is provided with a plurality of through holes, the apertures of the through holes are sequentially increased from top to bottom, and the injection pipe is inserted into an upper pipe orifice of the upper cage frame air duct;
the middle cage comprises a cage connecting ring, a middle cage longitudinal rib, a middle cage fixing ring and a middle cage air duct; the two cage connecting rings are arranged at the upper end and the lower end of the middle cage; the middle cage frame longitudinal ribs are uniformly distributed and fixedly arranged on the outer sides of the two cage frame connecting rings and are connected into a whole through the middle cage frame fixing rings in a reinforcing way; the middle cage frame air duct is fixedly arranged in the middle of the middle cage frame through a middle cage frame fixing ring; the middle cage frame air duct is tubular, the side wall of the middle cage frame air duct is provided with a plurality of through holes, and the hole diameters of the through holes are sequentially increased from top to bottom; the upper cage frame and the middle cage frame are fixedly connected through a cage frame connecting ring, and a lower pipe opening of the air guide pipe of the upper cage frame is inserted into an upper pipe opening of the air guide pipe of the middle cage frame;
the lower cage comprises a cage connecting ring, lower cage longitudinal ribs, a lower cage fixing ring, a lower cage bottom ring and a lower cage air guide pipe; the cage connecting ring is arranged at the upper part of the lower cage, and the lower cage bottom ring is arranged at the lower part of the lower cage; the lower cage frame longitudinal ribs are uniformly distributed and fixedly arranged on the outer sides of the cage frame connecting ring and the lower cage frame fixing ring and are connected into a whole through the lower cage frame fixing ring in a reinforcing way; the lower cage air duct is fixedly arranged in the middle of the lower cage through a lower cage fixing ring; the lower cage frame air duct is tubular, the side wall of the lower cage frame air duct is provided with a plurality of through holes, and the aperture of the through holes is increased from top to bottom in sequence; the middle cage frame and the lower cage frame are fixedly connected through a cage frame connecting ring, and a lower pipe orifice of the air guide pipe of the middle cage frame is inserted into an upper pipe orifice of the air guide pipe of the lower cage frame;
through the last cage air duct, middle cage air duct, the lower cage air duct of establishing ties in proper order plug connection, carry pulse compressed air to overlength filter bag dust collector in, discharge the compressed air through a plurality of through-holes that set up on last cage air duct, middle cage air duct, the lower cage air duct and do work, make the whole instantaneous strong shake that produces of overlength filter bag, consequently ensured the dust removal effect of overlength filter bag.
Preferably, a cage air inlet venturi tube and an upper cage venturi tube are fixedly arranged in the upper cage; the injection pipe is inserted into an upper pipe orifice of the cage air inlet Venturi tube, and a gap is formed between the injection pipe and the pipe wall of the cage air inlet Venturi tube; a gap is formed between the cage air inlet Venturi tube and the upper cage Venturi tube;
a middle cage frame Venturi tube is fixedly arranged in the middle cage frame; a gap is formed between the upper cage frame Venturi tube and the middle cage frame Venturi tube;
a lower cage Venturi tube is fixedly arranged in the lower cage; a gap is formed between the intermediate cage frame Venturi tube and the lower cage frame Venturi tube;
pulse compressed air is conveyed into the ultra-long filter bag dust removal device through an air inlet Venturi tube, an upper cage Venturi tube, a middle cage Venturi tube and a lower cage Venturi tube which are sequentially connected in series in an inserted manner; during the process of conveying the pulse compressed air through the venturi tubes, one part of the pulse compressed air is released through gaps between the adjacent venturi tubes, and the other part of the pulse compressed air is continuously conveyed downwards along the venturi tubes, so that the conveying uniformity of the compressed air in the whole ultra-long filter bag dust removal device is ensured, and finally, the compressed air expands in the ultra-long filter bag dust removal device to do work, so that the ultra-long filter bag integrally generates instantaneous strong shaking, and the dust removal effect of the ultra-long filter bag is ensured.
Compared with an air enhancer, no matter the air guide pipe or the Venturi tube is used, compressed air does not need to be converted into high-speed air flow, so that the air enhancer has the characteristics of small air transmission resistance, high air transmission energy density and uniform air transmission, and the maximum air transmission length of the air enhancer reaches more than 18 meters.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses an ultra-long filter bag dust collector which comprises a pulse gas generating device and an ultra-long filter bag dust collecting device; the pulse gas generating device comprises a large-flow instantaneous opening valve and a large-flow delay instantaneous closing valve which are connected in series, the large-flow instantaneous opening valve and the large-flow delay instantaneous closing valve are brand new in structural design and have the characteristics of high working pressure and small pressure drop, and the highest working pressure of the pulse gas generating device reaches 4.0MPa, so that the technical requirement of improving the pressure of a gas bag to reduce the volume of the gas bag is fully met; the ultra-long filter bag dust removal device is provided with a plurality of air guide devices connected in series, the air guide devices connected in series can effectively convey pulse compressed air to the ultra-long filter bag dust removal device, the maximum air conveying length of the ultra-long filter bag dust removal device reaches more than 18 meters, and meanwhile, the ultra-long filter bag dust removal device has the characteristics of high air conveying energy density and uniform air conveying, can enable the whole ultra-long filter bag to generate instantaneous strong shaking, and has an excellent dust removal effect; the ultra-long filter bag dust remover successfully solves the technical problem of emission and reconstruction of the production tail gas of the existing industrial and mining enterprises by additionally arranging the bag dust remover in a limited area by adopting a large-flow instant-opening valve, a large-flow delayed instant-closing valve and a series-connected gas guide device which are designed in a brand-new structure, and leads to a new direction of the technical development of the bag dust remover.
Drawings
FIG. 1 is a schematic diagram of a super-long bag-type dust collector;
FIG. 2 is a schematic structural view of a large-flow instant-opening valve;
FIG. 3 is a schematic structural diagram of a large-flow delay instantaneous-closing valve;
FIG. 4 is a schematic view of the control principle of the pulse gas generator;
FIG. 5 is a schematic view of the appearance of a super-long filter bag dust collector;
FIG. 6 is an exploded view of a super-long filter bag dust collector;
FIG. 7 is a schematic diagram of the explosion of a filter bag cage assembly using an air duct structure;
FIG. 8 is a schematic external view of an upper cage employing an airway structure;
FIG. 9 is a schematic external view of an intermediate cage employing an airway tube configuration;
FIG. 10 is a schematic view of the external appearance of a lower cage using an airway structure;
FIG. 11 is a sectional view of a filter bag cage assembly using an airway structure;
FIG. 12 is an exploded view of a filter bag cage assembly employing a venturi tube structure;
FIG. 13 is a schematic external view of an upper cage employing a venturi structure;
FIG. 14 is a schematic external view of an intermediate cage employing a venturi configuration;
FIG. 15 is a schematic external view of a lower cage employing a venturi structure;
FIG. 16 is a sectional view of a filter bag cage assembly using a venturi tube structure;
FIG. 17 is a schematic external view of the cage air inlet venturi;
figure 18 is a schematic external view of the venturi of the intermediate cage.
In the figure: 1. a pulse gas generating device; 1.1, an air source; 1.2, air bags; 1.3, an air filter; 1.4, a switch valve; 1.5, a reversing valve; 1.6, a large-flow instant valve; 1.6.1, an instantaneous valve body; 1.6.1.1, opening the left chamber instantly; 1.6.1.2, instantaneous valve right chamber; 1.6.1.3, an instantaneous valve working air outlet; 1.6.2, an instantaneous-opening valve core; 1.6.2.1, an anti-rotation guide post of the valve core of the instant opening valve; 1.6.2.2, piston air guide hole of instantaneous opening valve; 1.6.3, opening the left end cover of the valve instantly; 1.6.3.1, opening the guide post hole instantly; 1.6.3.2, an instantaneous valve working air inlet; 1.6.4, right end cover of instantaneous opening valve; 1.6.4.1, snap-open valve spring cavity; 1.6.4.2, opening the control air hole instantly; 1.6.5, instantaneous valve return spring; 1.7, closing the valve in a large-flow delay instant manner; 1.7.1, instantly closing the valve body; 1.7.1.1, left chamber of the flash closing valve; 1.7.1.2, a flash closing valve working through hole; 1.7.1.3, right chamber of the instantaneous closing valve; 1.7.2, valve core of instantaneous closing valve; 1.7.2.1, a working air through hole of the valve core of the instantaneous closing valve; 1.7.2.2, a valve core air groove of the instantaneous closing valve; 1.7.2.3, a transient closing valve piston air guide hole; 1.7.2.4, an anti-rotation guide post of the valve core of the instantaneous closing valve; 1.7.3, closing the left end cover of the valve instantly; 1.7.3.1, closing the control air hole by the instantaneous closing valve; 1.7.4, closing the right end cover of the valve instantly; 1.7.4.1, snap-close valve spring cavity; 1.7.4.2, opening the control air hole by the instantaneous closing valve; 1.7.5, a snap-off valve return spring; 1.8, a one-way valve A; 1.9, a pressure stabilizing valve; 1.10, an adjustable throttle valve; 1.11, a one-way valve B; 1.12, an air discharge silencer; 2. an ultra-long filter bag dust removal device; 2.1, a working air pipe; 2.1.1, a blowing pipe; 2.2, a perforated plate; 2.3, combining the ultra-long filter bags; 2.3.1, combining a filter bag cage; 2.3.1.1, putting on a cage; 2.3.1.1.1, a cage head; 2.3.1.1.2, putting the longitudinal bars on the cage; 2.3.1.1.4, fixing the cage; 2.3.1.1.5, a cage connecting ring; 2.3.1.1.6, air duct of upper cage; 2.3.1.1.7, cage air inlet venturi tube; 2.3.1.1.8, a cage-mounting Venturi tube; 2.3.1.2, a middle cage; 2.3.1.2.2, middle cage longitudinal bars; 2.3.1.2.4, intermediate cage fixing ring; 2.3.1.2.6, middle cage airway; 2.3.1.2.8, intermediate cage venturi tube; 2.3.1.3, a lower cage; 2.3.1.3.2, lower cage longitudinal ribs; 2.3.1.3.4, a lower cage fixing ring; 2.3.1.3.5, a lower cage bottom ring; 2.3.1.3.6, lower cage airway; 2.3.1.3.8, a lower cage Venturi tube; 2.3.2, ultra-long filter bag.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
The first embodiment is as follows:
a super-long filter bag dust remover comprises a pulse gas generating device 1 and a super-long filter bag dust removing device 2; the pulse gas generating device 1 comprises a large-flow instantaneous opening valve 1.6 and a large-flow delay instantaneous closing valve 1.7 which are connected in series, pulse compressed air is generated by the large-flow instantaneous opening valve 1.6 and the large-flow delay instantaneous closing valve 1.7 which are connected in series, and the pulse compressed air is conveyed to the ultra-long filter bag dust removal device 2 through a working air pipe 2.1;
the large-flow instant-open valve 1.6 comprises an instant-open valve body 1.6.1, an instant-open valve spool 1.6.2, an instant-open valve left end cover 1.6.3 and an instant-open valve right end cover 1.6.4; the left side and the right side of the instantaneous valve body 1.6.1 are provided with a circular and communicated instantaneous valve left chamber 1.6.1.1 and an instantaneous valve right chamber 1.6.1.2, and the side wall of the instantaneous valve left chamber 1.6.1.1 is provided with an instantaneous valve working air outlet 1.6.1.3; the instantaneous-open valve core 1.6.2 is cylindrical, an instantaneous-open valve piston is arranged on the right side of the instantaneous-open valve core, a plurality of instantaneous-open valve piston air guide holes 1.6.2.2 are formed in the instantaneous-open valve piston, and a plurality of instantaneous-open valve core anti-rotation guide posts 1.6.2.1 are fixedly arranged on the left end face of the instantaneous-open valve piston; the instantaneous valve core 1.6.2 is movably arranged at the connection part between the instantaneous valve left chamber 1.6.1.1 and the instantaneous valve right chamber 1.6.1.2 of the instantaneous valve body 1.6.1, and the piston of the instantaneous valve core 1.6.2 is movably arranged in the instantaneous valve right chamber 1.6.1.2; the middle of the left end cover 1.6.3 of the instantaneous opening valve is provided with an instantaneous opening valve working air inlet 1.6.3.2, and the periphery of the instantaneous opening valve working air inlet is provided with a plurality of instantaneous opening valve guide post holes 1.6.3.1 corresponding to the anti-rotation guide posts 1.6.2.1 of the valve core of the instantaneous opening valve; the left end cover 1.6.3 of the instantaneous opening valve is fixedly arranged at the left end part of the valve body 1.6.1 of the instantaneous opening valve, and the valve core anti-rotation guide post 1.6.2.1 of the instantaneous opening valve is arranged in the guide post hole 1.6.3.1 of the instantaneous opening valve in a sliding way; when the large-flow instant-open valve 1.6 is in a closed state, the left end part of the valve core 1.6.2 of the instant-open valve is contacted with the left end cover 1.6.3 of the instant-open valve; the middle of the instant-open valve right end cover 1.6.4 is provided with an instant-open valve closing control air hole 1.6.4.2, and the instant-open valve right end cover 1.6.4 is fixedly arranged at the right side end part of the instant-open valve body 1.6.1; when the large-flow instant-open valve 1.6 is in an open state, the end part of the right-side instant-open valve piston of the instant-open valve spool 1.6.2 is contacted with the instant-open valve right end cover 1.6.4; the right end face of the right instantaneous opening valve end cover 1.6.4 is provided with an instantaneous opening valve spring cavity 1.6.4.1, and an instantaneous opening valve return spring 1.6.5 is arranged in the instantaneous opening valve spring cavity 1.6.4.1;
the large-flow time-delay instant-closing valve 1.7 comprises an instant-closing valve body 1.7.1, an instant-closing valve spool 1.7.2, an instant-closing valve left end cover 1.7.3 and an instant-closing valve right end cover 1.7.4; the left side of the valve body 1.7.1 of the instant closing valve is provided with an instant closing valve left chamber 1.7.1.1, the right side of the instant closing valve is provided with an instant closing valve right chamber 1.7.1.3, and the side wall of the instant closing valve right chamber 1.7.1.3 is provided with a through instant closing valve working through hole 1.7.1.2; the instantaneous closing valve core 1.7.2 is cylindrical, the left end of the instantaneous closing valve core is provided with an instantaneous closing valve piston, the instantaneous closing valve piston is provided with a plurality of instantaneous closing valve piston air guide holes 1.7.2.3, and the left end face of the instantaneous closing valve piston is fixedly provided with a plurality of instantaneous closing valve core anti-rotation guide posts 1.7.2.4; the upper side and the lower side of the valve core 1.7.2 of the instantaneous closing valve are also symmetrically provided with an instantaneous closing valve core air groove 1.7.2.2 adjacent to the piston of the instantaneous closing valve, and the right side of the valve core air groove 1.7.2.2 of the instantaneous closing valve is provided with a through valve core working air through hole 1.7.2.1 of the instantaneous closing valve; the valve core 1.7.2 of the instantaneous closing valve is movably arranged in the right chamber 1.7.1.3 of the instantaneous closing valve, and the piston of the instantaneous closing valve is movably arranged in the left chamber 1.7.1.1 of the instantaneous closing valve; an instantaneous valve closing control air hole 1.7.3.1 is arranged in the middle of the left end cover 1.7.3 of the instantaneous valve, and a plurality of instantaneous valve guide post holes corresponding to the instantaneous valve spool anti-rotation guide posts 1.7.2.4 are arranged on the periphery of the instantaneous valve closing control air hole; the left end cover 1.7.3 of the instantaneous closing valve is fixedly arranged at the left end part of the valve body 1.7.1 of the instantaneous closing valve, and the valve core anti-rotation guide post 1.7.2.4 of the instantaneous closing valve is arranged in the guide post hole of the instantaneous closing valve in a sliding manner; when the large-flow delay instantaneous closing valve 1.7 is in an open state, an instantaneous closing valve piston at the left end of the valve core 1.7.2 of the instantaneous closing valve is contacted with the left end cover 1.7.3 of the instantaneous closing valve; an instantaneous closing valve opening control air hole 1.7.4.2 is arranged in the middle of the instantaneous closing valve right end cover 1.7.4, and the instantaneous closing valve right end cover 1.7.4 is fixedly arranged at the right side end part of the instantaneous closing valve body 1.7.1; when the large-flow delay instantaneous closing valve 1.7 is in a closed state, the right side end part of the valve core 1.7.2 of the instantaneous closing valve is contacted with the right end cover 1.7.4 of the instantaneous closing valve; an instantaneous closing valve spring cavity 1.7.4.1 is arranged on the right end face of the right end cover 1.7.4 of the instantaneous closing valve, and an instantaneous closing valve return spring 1.7.5 is arranged in the instantaneous closing valve spring cavity 1.7.4.1;
the pulse gas generating device 1 further comprises a gas source 1.1, a gas bag 1.2, an air filter 1.3, a switch valve 1.4, a reversing valve 1.5, a one-way valve A1.8, a pressure stabilizing valve 1.9, an adjustable throttle valve 1.10 and a one-way valve B1.11; the air source 1.1 is connected with the air bag 1.2 through a pipeline; the air bag 1.2 is provided with a control air path and a working air path, and the control air path is sequentially connected with an air filter 1.3, a switch valve 1.4 and a reversing valve 1.5 through an air pipe; the reversing valve 1.5 outputs two control gas paths, one control gas path is respectively connected to the instantaneous opening valve closing control gas hole 1.6.4.2 of the large-flow instantaneous opening valve 1.6 and the instantaneous closing valve opening control gas hole 1.7.4.2 of the large-flow time-delay instantaneous closing valve 1.7, and the other control gas path is connected to the instantaneous closing valve closing control gas hole 1.7.3.1 of the large-flow time-delay instantaneous closing valve 1.7 through parallel gas paths; one path of the parallel gas paths is sequentially connected with a one-way valve A1.8, a pressure stabilizing valve 1.9 and an adjustable throttle valve 1.10 through a gas pipe, and the other path of the parallel gas paths is connected with a one-way valve B1.11 through a gas pipe; the working gas circuit is sequentially communicated with an instantaneous opening valve working gas inlet 1.6.3.2 of the large-flow instantaneous opening valve 1.6, an instantaneous opening valve working gas outlet 1.6.1.3 and an inlet of an instantaneous closing valve working through hole 1.7.1.2 of the large-flow time-delay instantaneous closing valve 1.7 through pipelines, and is finally connected to a working gas pipe 2.1 through an outlet of the instantaneous closing valve working through hole 1.7.1.2 through a pipeline; the reversing valve 1.5 is also connected with an air discharge silencer 1.12 through an air pipe;
the ultra-long filter bag dust removal device 2 comprises a working air pipe 2.1, a perforated plate 2.2 and an ultra-long filter bag combination 2.3; ten ultra-long filter bag combinations 2.3 are arranged in an array, and the ten ultra-long filter bag combinations 2.3 are fixedly arranged on the lower side of the perforated plate 2.2; the working air pipe 2.1 is provided with ten injection pipes 2.1.1, and the ten injection pipes 2.1.1 are correspondingly arranged at the upper parts of ten ultra-long filter bag combinations 2.3; the ultra-long filter bag combination 2.3 comprises a filter bag cage combination 2.3.1 and an ultra-long filter bag 2.3.2; the ultra-long filter bag 2.3.2 is fixedly arranged at the outer side of the filter bag cage combination 2.3.1; the filter bag cage assembly 2.3.1 comprises an upper cage 2.3.1.1, a middle cage 2.3.1.2 and a lower cage 2.3.1.3; two of the intermediate cages 2.3.1.2 are provided; the upper cage 2.3.1.1, the middle cage 2.3.1.2 and the lower cage 2.3.1.3 are sequentially arranged up and down and fixedly connected;
the upper cage 2.3.1.1 comprises a cage head 2.3.1.1.1, upper cage longitudinal ribs 2.3.1.1.2, an upper cage fixing ring 2.3.1.1.4, a cage connecting ring 2.3.1.1.5 and an upper cage air duct 2.3.1.1.6; six upper cage longitudinal ribs 2.3.1.1.2 are uniformly distributed and fixedly arranged on the outer side of the lower part of the cage head 2.3.1.1.1 and are connected into a whole through an upper cage fixing ring 2.3.1.1.4 and a cage connecting ring 2.3.1.1.5; the upper cage airway 2.3.1.1.6 is fixedly arranged in the middle of the upper cage 2.3.1.1 through an upper cage fixing ring 2.3.1.1.4; the upper cage frame air duct 2.3.1.1.6 is tubular, the side wall of the upper cage frame air duct 2.3.1.1.6 is provided with twenty-four through holes, and the injection tube 2.1.1 is inserted into an upper tube opening of the upper cage frame air duct 2.3.1.1.6; the middle cage 2.3.1.2 comprises a cage connecting ring 2.3.1.1.5, a middle cage longitudinal bar 2.3.1.2.2, a middle cage fixing ring 2.3.1.2.4 and a middle cage air duct 2.3.1.2.6; two of the cage connecting rings 2.3.1.1.5 are arranged at the upper end and the lower end of the middle cage 2.3.1.2; six middle cage frame longitudinal ribs 2.3.1.2.2 are uniformly distributed and fixedly arranged on the outer sides of the two cage frame connecting rings 2.3.1.1.5 and are connected into a whole through a middle cage frame fixing ring 2.3.1.2.4 in a reinforcing manner; the intermediate cage airway 2.3.1.2.6 is fixedly disposed in the middle of the intermediate cage 2.3.1.2 by an intermediate cage retainer ring 2.3.1.2.4; the middle cage frame air duct 2.3.1.2.6 is tubular, and the side wall of the middle cage frame air duct 2.3.1.2.6 is provided with twenty-four through holes; the upper cage 2.3.1.1 and the middle cage 2.3.1.2 are fixedly connected through a cage connecting ring 2.3.1.1.5, and a lower pipe opening of an upper cage air duct 2.3.1.1.6 of the upper cage 2.3.1.1 is inserted into an upper pipe opening of a middle cage air duct 2.3.1.2.6 of the middle cage 2.3.1.2; the lower cage 2.3.1.3 comprises a cage connecting ring 2.3.1.1.5, lower cage longitudinal ribs 2.3.1.3.2, a lower cage fixing ring 2.3.1.3.4, a lower cage bottom ring 2.3.1.3.5 and lower cage air ducts 2.3.1.3.6; the cage coupling ring 2.3.1.1.5 is disposed on the upper portion of the lower cage 2.3.1.3, and the lower cage ground ring 2.3.1.3.5 is disposed on the lower portion of the lower cage 2.3.1.3; six lower cage frame longitudinal ribs 2.3.1.3.2 are uniformly distributed and fixedly arranged on the outer sides of the cage frame connecting ring 2.3.1.1.5 and the lower cage frame fixing ring 2.3.1.3.4 and are connected into a whole through the lower cage frame fixing ring 2.3.1.3.4 in a reinforcing manner; the lower cage air duct 2.3.1.3.6 is fixedly arranged in the middle of the lower cage 2.3.1.3 through a lower cage fixing ring 2.3.1.3.4; the lower cage air duct 2.3.1.3.6 is tubular, and the side wall of the lower cage air duct 2.3.1.3.6 is provided with twenty-four through holes; the middle cage 2.3.1.2 and the lower cage 2.3.1.3 are fixedly connected through a cage connecting ring 2.3.1.1.5, and a lower pipe orifice of a middle cage air duct 2.3.1.2.6 of the middle cage 2.3.1.2 is inserted into an upper pipe orifice of a lower cage air duct 2.3.1.3.6 of the lower cage 2.3.1.3.
Example two:
according to the first embodiment, a cage air inlet venturi tube 2.3.1.1.7 and an upper cage venturi tube 2.3.1.1.8 are fixedly arranged in the upper cage 2.3.1.1; the injection pipe 2.1.1 is inserted into the upper pipe orifice of the cage air inlet venturi tube 2.3.1.1.7, and a gap is formed between the injection pipe 2.1.1 and the pipe wall of the cage air inlet venturi tube 2.3.1.1.7; a gap is arranged between the cage air inlet Venturi tube 2.3.1.1.7 and the upper cage Venturi tube 2.3.1.1.8; a middle cage venturi tube 2.3.1.2.8 is fixedly arranged in the middle cage 2.3.1.2; a gap is formed between the upper cage venturi tube 2.3.1.1.8 and the middle cage venturi tube 2.3.1.2.8; a lower cage frame Venturi tube 2.3.1.3.8 is fixedly arranged in the lower cage frame 2.3.1.3; a gap is arranged between the middle cage venturi tube 2.3.1.2.8 and the lower cage venturi tube 2.3.1.3.8.
Example three:
based on the second embodiment, the control gas path connected to the instantaneous closing valve opening control gas hole 1.7.4.2 of the large-flow delay instantaneous closing valve 1.7 is a parallel gas path, wherein one path is sequentially provided with a one-way valve and an adjustable throttle valve, and the other path is provided with a one-way valve.
The present invention is not described in detail in the prior art.
Claims (9)
1. The ultra-long filter bag dust collector is characterized in that: comprises a pulse gas generating device (1) and an ultra-long filter bag dust removing device (2); the pulse gas generating device (1) comprises a large-flow instantaneous opening valve (1.6) and a large-flow delay instantaneous closing valve (1.7) which are connected in series, pulse compressed air is generated by the large-flow instantaneous opening valve (1.6) and the large-flow delay instantaneous closing valve (1.7) which are connected in series, and the pulse compressed air is conveyed to the ultra-long filter bag dust removal device (2) through a working air pipe (2.1); the ultra-long filter bag dust removal device (2) is internally provided with a plurality of serially connected air guide devices, and the serially connected air guide devices uniformly convey pulse compressed air into the ultra-long filter bag dust removal device (2); the pulse compressed air expands in the ultra-long filter bag dust removal device (2) to do work, so that the ultra-long filter bag dust removal device (2) generates instantaneous strong shaking to remove dust collection of the ultra-long filter bag dust removal device (2).
2. The ultra-long bag-type dust collector of claim 1, wherein: the large-flow instant-open valve (1.6) comprises an instant-open valve body (1.6.1), an instant-open valve spool (1.6.2), an instant-open valve left end cover (1.6.3) and an instant-open valve right end cover (1.6.4);
the left side and the right side of the instantaneous valve body (1.6.1) are provided with an instantaneous valve left chamber (1.6.1.1) and an instantaneous valve right chamber (1.6.1.2) which are communicated, and the side wall of the instantaneous valve left chamber (1.6.1.1) is provided with an instantaneous valve working air outlet (1.6.1.3);
the instantaneous-opening valve core (1.6.2) is cylindrical, the right end of the instantaneous-opening valve core is provided with an instantaneous-opening valve piston, the instantaneous-opening valve piston is provided with a plurality of instantaneous-opening valve piston air guide holes (1.6.2.2), and the left end face of the instantaneous-opening valve piston is fixedly provided with a plurality of instantaneous-opening valve core anti-rotation guide posts (1.6.2.1); the instantaneous valve core (1.6.2) is movably arranged at the connection part between the instantaneous valve left chamber (1.6.1.1) and the instantaneous valve right chamber (1.6.1.2) of the instantaneous valve body (1.6.1), and the piston of the instantaneous valve core (1.6.2) is movably arranged in the instantaneous valve right chamber (1.6.1.2);
an instantaneous valve working air inlet hole (1.6.3.2) is formed in the middle of the instantaneous valve left end cover (1.6.3), and a plurality of instantaneous valve guide post holes (1.6.3.1) corresponding to the anti-rotation guide posts (1.6.2.1) of the instantaneous valve core are formed in the periphery of the instantaneous valve working air inlet hole (1.6.3.2); the left end cover (1.6.3) of the instantaneous opening valve is fixedly arranged at the left end part of the valve body (1.6.1) of the instantaneous opening valve, and the anti-rotation guide post (1.6.2.1) of the valve core of the instantaneous opening valve is arranged in the guide post hole (1.6.3.1) of the instantaneous opening valve in a sliding way; when the large-flow instant-open valve (1.6) is in a closed state, the left end part of the valve core (1.6.2) of the instant-open valve is contacted with the left end cover (1.6.3) of the instant-open valve;
the middle of the right end cover (1.6.4) of the instantaneous opening valve is provided with an instantaneous opening valve closing control air hole (1.6.4.2), and the right end cover (1.6.4) of the instantaneous opening valve is fixedly arranged at the right end part of the valve body (1.6.1) of the instantaneous opening valve; when the large flow rate snap-open valve (1.6) is in an open state, the end of the snap-open valve piston is in contact with the right snap-open valve end cover (1.6.4).
3. The ultra-long bag-type dust collector of claim 1, wherein: the large-flow time-delay instant closing valve (1.7) comprises an instant closing valve body (1.7.1), an instant closing valve spool (1.7.2), an instant closing valve left end cover (1.7.3) and an instant closing valve right end cover (1.7.4);
the left side of the valve body (1.7.1) of the instantaneous closing valve is provided with an instantaneous closing valve left cavity (1.7.1.1), the right side of the valve body is provided with an instantaneous closing valve right cavity (1.7.1.3), and the side wall of the instantaneous closing valve right cavity (1.7.1.3) is provided with a through instantaneous closing valve working through hole (1.7.1.2);
the instantaneous closing valve core (1.7.2) is cylindrical, the left end of the instantaneous closing valve core is provided with an instantaneous closing valve piston, the instantaneous closing valve piston is provided with a plurality of instantaneous closing valve piston air guide holes (1.7.2.3), and the left end surface of the instantaneous closing valve piston is fixedly provided with a plurality of instantaneous closing valve core anti-rotation guide posts (1.7.2.4); the upper side and the lower side of the instantaneous closing valve core (1.7.2) are also symmetrically provided with instantaneous closing valve core air grooves (1.7.2.2), and the right side of the instantaneous closing valve core air groove (1.7.2.2) is provided with an instantaneous closing valve core working air through hole (1.7.2.1) which is communicated up and down; the valve core (1.7.2) of the instantaneous closing valve is movably arranged in the right chamber (1.7.1.3) of the instantaneous closing valve, and the piston of the instantaneous closing valve is movably arranged in the left chamber (1.7.1.1) of the instantaneous closing valve;
an instantaneous valve closing control air hole (1.7.3.1) is formed in the middle of the left end cover (1.7.3) of the instantaneous valve, and a plurality of instantaneous valve guide post holes corresponding to the instantaneous valve spool anti-rotation guide posts (1.7.2.4) are formed in the periphery of the instantaneous valve closing control air hole; the left end cover (1.7.3) of the instantaneous closing valve is fixedly arranged at the left end part of the valve body (1.7.1) of the instantaneous closing valve, and the valve core anti-rotation guide post (1.7.2.4) of the instantaneous closing valve is arranged in the guide post hole of the instantaneous closing valve in a sliding manner; when the large-flow delay instantaneous closing valve (1.7) is in an open state, the instantaneous closing valve piston is contacted with the instantaneous closing valve left end cover (1.7.3);
an instantaneous closing valve opening control air hole (1.7.4.2) is formed in the middle of the instantaneous closing valve right end cover (1.7.4), and the instantaneous closing valve right end cover (1.7.4) is fixedly arranged at the right side end part of the instantaneous closing valve body (1.7.1); when the large-flow delay instant closing valve (1.7) is in a closed state, the right end part of the valve core (1.7.2) of the instant closing valve is in contact with the right end cover (1.7.4) of the instant closing valve.
4. The ultra-long bag dust collector of claim 2 or 3, wherein: an instantaneous opening valve spring cavity (1.6.4.1) is formed in the right end face of the instantaneous opening valve right end cover (1.6.4), and an instantaneous opening valve return spring (1.6.5) is arranged in the instantaneous opening valve spring cavity (1.6.4.1); an instantaneous closing valve spring cavity (1.7.4.1) is arranged on the right end face of the instantaneous closing valve right end cover (1.7.4), and an instantaneous closing valve return spring (1.7.5) is arranged in the instantaneous closing valve spring cavity (1.7.4.1).
5. The ultra-long bag dust collector of claim 2 or 3, wherein: the pulse gas generating device (1) further comprises a gas source (1.1), a gas bag (1.2), an air filter (1.3), a switch valve (1.4), a reversing valve (1.5), a one-way valve A (1.8), a pressure stabilizing valve (1.9), an adjustable throttle valve (1.10) and a one-way valve B (1.11);
the air source (1.1) is connected with the air bag (1.2) through a pipeline; the air bag (1.2) is provided with a control air path and a working air path, and the control air path is sequentially connected with an air filter (1.3), a switch valve (1.4) and a reversing valve (1.5) through an air pipe; the reversing valve (1.5) outputs two control gas paths, one control gas path is respectively connected to an instantaneous opening valve closing control gas hole (1.6.4.2) of the large-flow instantaneous opening valve (1.6) and an instantaneous closing valve opening control gas hole (1.7.4.2) of the large-flow delay instantaneous closing valve (1.7), and the other control gas path is connected to an instantaneous closing valve closing control gas hole (1.7.3.1) of the large-flow delay instantaneous closing valve (1.7) through a parallel gas path; one path of the parallel gas path is sequentially connected with a one-way valve A (1.8), a pressure stabilizing valve (1.9) and an adjustable throttle valve (1.10) through a gas pipe, and the other path of the parallel gas path is connected with a one-way valve B (1.11) through a gas pipe; the working gas circuit is sequentially communicated with an instantaneous opening valve working gas inlet hole (1.6.3.2) of the large-flow instantaneous opening valve (1.6), an instantaneous opening valve working gas outlet hole (1.6.1.3) and an inlet of an instantaneous closing valve working through hole (1.7.1.2) of the large-flow delay instantaneous closing valve (1.7) through pipelines, and finally is connected to a working gas pipe (2.1) through an outlet of the instantaneous closing valve working through hole (1.7.1.2) through a pipeline; the reversing valve (1.5) is also connected with an air discharge silencer (1.12) through an air pipe.
6. The ultra-long bag-type dust collector of claim 5, wherein: the gas circuit connected with the instantaneous closing valve opening control air hole (1.7.4.2) of the large-flow time-delay instantaneous closing valve (1.7) is a parallel gas circuit, wherein one gas circuit is provided with a one-way valve and an adjustable throttle valve, and the other gas circuit is provided with a one-way valve.
7. The ultra-long bag-type dust collector of claim 1, wherein: the ultra-long filter bag dust removal device (2) comprises a working air pipe (2.1), a perforated plate (2.2) and an ultra-long filter bag combination (2.3); the plurality of ultra-long filter bag combinations (2.3) are arranged in an array and fixedly arranged on the lower side of the perforated plate (2.2); the working air pipe (2.1) is provided with a plurality of injection pipes (2.1.1), and the plurality of injection pipes (2.1.1) are correspondingly arranged at the upper parts of the plurality of ultra-long filter bag combinations (2.3); the ultra-long filter bag combination (2.3) comprises a filter bag cage combination (2.3.1) and an ultra-long filter bag (2.3.2), and the ultra-long filter bag (2.3.2) is fixedly arranged on the outer side of the filter bag cage combination (2.3.1); the filter bag cage frame assembly (2.3.1) comprises an upper cage frame (2.3.1.1), a middle cage frame (2.3.1.2) and a lower cage frame (2.3.1.3); more than one middle cage (2.3.1.2) is arranged; the upper cage frame (2.3.1.1), the middle cage frame (2.3.1.2) and the lower cage frame (2.3.1.3) are sequentially arranged up and down and fixedly connected.
8. The ultra-long bag-type dust collector of claim 7, wherein: the upper cage (2.3.1.1) comprises a cage head (2.3.1.1.1), upper cage longitudinal ribs (2.3.1.1.2), an upper cage fixing ring (2.3.1.1.4), a cage connecting ring (2.3.1.1.5) and an upper cage air duct (2.3.1.1.6); the cage-mounting longitudinal ribs (2.3.1.1.2) are uniformly distributed and fixedly arranged on the outer side of the lower part of the cage-mounting head (2.3.1.1.1) and are connected into a whole through a cage-mounting fixing ring (2.3.1.1.4) and a cage-mounting connecting ring (2.3.1.1.5); the upper cage air guide pipe (2.3.1.1.6) is fixedly arranged in the middle of the upper cage (2.3.1.1) through an upper cage fixing ring (2.3.1.1.4); the upper cage frame air duct (2.3.1.1.6) is tubular, the side wall of the upper cage frame air duct is provided with a plurality of through holes, and the blowing pipe (2.1.1) is inserted into an upper pipe orifice of the upper cage frame air duct (2.3.1.1.6);
the middle cage (2.3.1.2) comprises a cage connecting ring (2.3.1.1.5), a middle cage longitudinal rib (2.3.1.2.2), a middle cage fixing ring (2.3.1.2.4) and a middle cage air duct (2.3.1.2.6); the two cage connecting rings (2.3.1.1.5) are arranged at the upper end and the lower end of the middle cage (2.3.1.2); the middle cage frame longitudinal ribs (2.3.1.2.2) are uniformly distributed and fixedly arranged on the outer sides of the two cage frame connecting rings (2.3.1.1.5) and are connected into a whole through a middle cage frame fixing ring (2.3.1.2.4) in a reinforcing way; the middle cage airway (2.3.1.2.6) is fixedly arranged in the middle of the middle cage (2.3.1.2) through a middle cage fixing ring (2.3.1.2.4); the middle cage frame air duct (2.3.1.2.6) is tubular, and the side wall of the middle cage frame air duct is provided with a plurality of through holes; the upper cage frame (2.3.1.1) and the middle cage frame (2.3.1.2) are fixedly connected through a cage frame connecting ring (2.3.1.1.5), and a lower pipe opening of an upper cage frame air duct (2.3.1.1.6) is inserted into an upper pipe opening of a middle cage frame air duct (2.3.1.2.6);
the lower cage (2.3.1.3) comprises a cage connecting ring (2.3.1.1.5), lower cage longitudinal ribs (2.3.1.3.2), a lower cage fixing ring (2.3.1.3.4), a lower cage bottom ring (2.3.1.3.5) and a lower cage air duct (2.3.1.3.6); the cage connecting ring (2.3.1.1.5) is arranged at the upper part of the lower cage (2.3.1.3), and the lower cage bottom ring (2.3.1.3.5) is arranged at the lower part of the lower cage (2.3.1.3); the lower cage frame longitudinal ribs (2.3.1.3.2) are uniformly distributed and fixedly arranged on the outer sides of the cage frame connecting ring (2.3.1.1.5) and the lower cage frame bottom ring (2.3.1.3.5) and are connected into a whole through the lower cage frame fixing ring (2.3.1.3.4) in a reinforcing way; the lower cage air guide pipe (2.3.1.3.6) is fixedly arranged in the middle of the lower cage (2.3.1.3) through a lower cage fixing ring (2.3.1.3.4); the lower cage air duct (2.3.1.3.6) is tubular, and the side wall of the lower cage air duct is provided with a plurality of through holes; middle cage (2.3.1.2), lower cage (2.3.1.3) pass through cage go-between (2.3.1.1.5) fixed connection, and the lower mouth of pipe of middle cage air duct (2.3.1.2.6) is inserted in the last mouth of pipe of lower cage air duct (2.3.1.3.6).
9. The ultra-long bag-type dust collector of claim 8, wherein: a cage air inlet Venturi tube (2.3.1.1.7) and an upper cage Venturi tube (2.3.1.1.8) are fixedly arranged in the upper cage (2.3.1.1); the injection pipe (2.1.1) is inserted into the upper pipe orifice of the cage air inlet Venturi pipe (2.3.1.1.7), and a gap is formed between the injection pipe (2.1.1) and the pipe wall of the cage air inlet Venturi pipe (2.3.1.1.7); a gap is arranged between the cage air inlet Venturi tube (2.3.1.1.7) and the upper cage Venturi tube (2.3.1.1.8);
a middle cage Venturi tube (2.3.1.2.8) is fixedly arranged in the middle cage (2.3.1.2); a gap is arranged between the upper cage frame Venturi tube (2.3.1.1.8) and the middle cage frame Venturi tube (2.3.1.2.8);
a lower cage venturi tube (2.3.1.3.8) is fixedly arranged in the lower cage (2.3.1.3); and a gap is arranged between the middle cage frame Venturi tube (2.3.1.2.8) and the lower cage frame Venturi tube (2.3.1.3.8).
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