CN113209745A - Obliquely-inserted filter cylinder dust removal device for straw incineration and dust removal method thereof - Google Patents
Obliquely-inserted filter cylinder dust removal device for straw incineration and dust removal method thereof Download PDFInfo
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- CN113209745A CN113209745A CN202110600200.0A CN202110600200A CN113209745A CN 113209745 A CN113209745 A CN 113209745A CN 202110600200 A CN202110600200 A CN 202110600200A CN 113209745 A CN113209745 A CN 113209745A
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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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
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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
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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Abstract
The invention discloses an obliquely inserted filter cylinder dust removal device for straw incineration and a dust removal method thereof, wherein the device comprises a box body, a filter cylinder, a left folding type supporting piece and a right folding type supporting piece; the left folding type supporting piece is vertically and obliquely arranged in the box body, and divides the interior of the box body into a gas purifying chamber and a dust and air chamber which are not communicated with each other; and a plurality of filter cylinders are horizontally and obliquely arranged in a drawer manner from top to bottom in the dust air chamber of the box body, the left end of each filter cylinder is hermetically connected with the left folding type supporting piece, the right end of each filter cylinder is hermetically connected with the right folding type supporting piece, the interior of each filter cylinder is communicated with the air purifying chamber of the box body through the left folding type supporting piece, and the cleaned air after dust removal is discharged from the air purifying chamber of the box body. The invention has the advantages of simple structure, reasonable design, small occupied area, convenient and quick maintenance, long service life and low cost.
Description
Technical Field
The invention relates to the field of straw burning environment protection, in particular to an obliquely-inserted filter cylinder dust removal device for straw burning and a dust removal method thereof.
Background
With the improvement of the emission standard of smoke dust in China, the bag-type dust collector is the product which is used most and developed fastest; it is a filtering type equipment, which plays a great role in treating atmospheric pollution. Its development goes through three stages: the original soviet union type product is adopted at first, and then the product is produced on the basis of imitating pulse type and mechanical rotary back-blowing flat bag type in the countries of America, Japan and the like. In the second stage, after one, nine, seven and three years, some manufacturers of bag-type dust removing equipment begin to appear in China; however, various problems have been encountered through multiple trials. Along with the increase of time, a product is provided with a new step, the third stage is gradually stepped, and the dust removing equipment with good dust removing effect, more reliable operation and long service life of the filter bag is successfully developed.
With the continuous improvement of the industrial technical level in China, the requirement of people on high-temperature dust removal is more and more urgent, and a large amount of high-temperature flue gas dust removal problems exist in many fields such as energy, metallurgy, cement, chemical industry, internal combustion engines and the like, so that the high-temperature flue gas dust removal device has attracted attention in recent decades. Since the 70's of the 20 th century, research into high temperature dust removal technology has begun. Up to now, the integrated filter cartridge dust removal is a new direction in view of the various technologies used, the total cost and the operational reliability.
In a complete set of mobile biomass straw burning comprehensive utilization treatment project, the use scene of the integrated filter cartridge dust removal device is as follows: a flat trailer fixed behind the straw picking machine matched with the independent traction device is provided with granulation equipment, a biomass boiler, a generator, a dust removal device, a draught fan, a pipeline control system, a power distribution device and the like. The main technical route is as follows: the straws in the straw pickup machine enter a granulating device for forming and then enter a boiler for burning, and the generated high-temperature flue gas directly enters a filter drum type dust removal device and is directly emptied by a tail gas fan after being treated. Because the project is arranged on the platform trailer, the space is limited, and the size, the specification and the weight have strict requirements, the integrated filter cartridge dust removal device needs to be simplified as much as possible when being arranged in a selected mode. The traditional integrated filter cartridge dust removal device adopts a ceramic fiber cloth bag, so that the specification, the size and the weight of the traditional integrated filter cartridge dust removal device are large. Therefore, the above problems need to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing an obliquely-inserted filter cylinder dust removal device for straw incineration and a dust removal method thereof, which have the advantages of simple structure, reasonable design, small occupied area, convenience and rapidness in maintenance, long service life and low cost.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention discloses an obliquely inserted filter cylinder dust removal device for straw incineration, which has the innovation points that: comprises a box body, a filter cylinder, a left folding type supporting piece and a right folding type supporting piece; the left folding type supporting piece is vertically and obliquely arranged in the box body, and divides the interior of the box body into a gas purifying chamber and a dust and air chamber which are not communicated with each other; and a plurality of filter cylinders are horizontally and obliquely arranged in a drawer manner from top to bottom in the dust air chamber of the box body, the left end of each filter cylinder is hermetically connected with the left folding type supporting piece, the right end of each filter cylinder is hermetically connected with the right folding type supporting piece, the interior of each filter cylinder is communicated with the air purifying chamber of the box body through the left folding type supporting piece, and the cleaned air after dust removal is discharged from the air purifying chamber of the box body.
Preferably, each filter cylinder is arranged from left to right and inclines downwards at an angle of 15 degrees.
Preferably, the left folding type supporting piece is of a step-shaped structure matched with the left ends of all the filter cartridges, is vertically and obliquely arranged at a left position inside the box body, and is respectively connected with the inner top surface, the inner side wall and the inner bottom surface of the box body in a sealing manner; the right folding type supporting piece is of a step-shaped structure matched with the right ends of all the filter cylinders, is vertically and obliquely arranged in the box body close to the right side wall of the box body, and is respectively connected with the right side wall and the inner bottom surface of the box body in a sealing mode.
Preferably, each filter cylinder comprises a support cage, a filter bag, a first cover plate, a second cover plate, a third cover plate, a threaded rod and a hand wheel; each supporting cage frame is of an obliquely arranged hollow cylindrical frame structure, a filter bag is sleeved on the supporting cage frame coaxially, a first cover plate is sleeved on the left end of each supporting cage frame coaxially, the left end of each supporting cage frame is fixed with the left folding type supporting piece through a locking nut in a screwed mode, and the left end of each filter bag is tightly abutted and jointed with the left folding type supporting piece in a sealed mode through the first cover plate; the length of each filter bag is not less than that of the corresponding support cage, a second cover plate is coaxially attached to the end face of the right end of each filter bag, a threaded rod is coaxially screwed on the end face of the right side of each second cover plate, and the left end of each threaded rod vertically extends out of the corresponding second cover plate and is coaxially and fixedly connected with the end face of the right side of the corresponding support cage; the right end of each threaded rod is fixedly connected with the corresponding second cover plate through a locking nut in a threaded mode, extends out of the corresponding position of the right folding type supporting piece vertically, and is fixedly connected with the right folding type supporting piece through a third cover plate and a hand wheel in a threaded mode.
Preferably, the right end face of each first cover plate is abutted and attached to the left end face corresponding to the filter bag, and the left end face of each first cover plate is coplanar with the left end face corresponding to the support cage; and sealing gaskets are respectively arranged between each first cover plate and the left folding type supporting piece and between each filter bag and the corresponding second cover plate in a coaxial manner, and each sealing gasket is made of ceramic fibers.
Preferably, each filter bag is woven by stainless steel cloth, and the section of each filter bag is in a wrinkle shape; the two ends of each filter bag are respectively provided with a first hoop coaxially, each filter bag is fixed through the first hoop, the left end of each filter bag is tightly attached to the corresponding first cover plate through the first hoop, and the right end of each filter bag is tightly attached to the corresponding sealing gasket through the first hoop; and a plurality of second anchor ears are sequentially sleeved on each filter bag at intervals and coaxially along the axial direction of the filter bag, and each filter bag is fixed through the second anchor ear.
Preferably, through holes are respectively embedded and penetrated in positions, corresponding to the support cages, of the left folding type support piece, each through hole is coaxially arranged with the corresponding support cage, the diameter of each through hole is not larger than the inner diameter of the corresponding support cage, and the interior of each filter cylinder is communicated with the air purifying chamber of the box body through the through holes.
Preferably, a dust-containing air inlet is further embedded and arranged at the top of the box body relative to the position of the dust air chamber, and the dust-containing air inlet is communicated with the dust air chamber of the box body; an ash outlet is embedded and arranged at the bottom of the box body relative to the position of the dust air chamber of the box body, and the ash outlet is communicated with the dust air chamber of the box body; and a clean air outlet is embedded in the position of the top of the box body relative to the air purifying chamber of the box body, and the clean air outlet is communicated with the air purifying chamber of the box body.
Preferably, the device also comprises a pulse ash removal device; the pulse ash removal device is vertically arranged in the air purification chamber of the box body, and the air inlet end of the pulse ash removal device vertically extends upwards out of the top of the box body and is electrically connected with the electromagnetic valve; the air outlet end of the pulse ash removal device is obliquely arranged towards the interior of each filter cylinder, and ash removal is carried out on the interior of each filter cylinder through holes; the left side of box still the installation is equipped with the access door, and overhauls the processing through the access door to the inside of box.
The invention discloses a dust removal method of an obliquely-inserted filter cylinder dust removal device for straw incineration, which is characterized by comprising the following steps of:
the method comprises the following steps: firstly, the device is respectively connected with a flue at the outlet of a boiler through a dust-containing air inlet in a sealing way, connected with a dust hopper of a dust remover through a dust outlet in a sealing way and connected with a pipeline of a draught fan through a clean air outlet;
step two: then, 500 ℃ flue gas generated by the boiler enters a dust chamber of the box body through a dust-containing air inlet, sequentially passes through a filter bag from top to bottom to remove dust and particulate matters, and then enters a clean air chamber of the box body and is discharged through a clean air outlet;
step three: when the pressure difference between the dust-containing air inlet and the clean air outlet is detected to exceed a set value, the electromagnetic valve is opened, and compressed air is sprayed into each filter cylinder through the pulse ash removal device;
step four: the airflow in each filter cylinder expands sharply, and dust falls off and is discharged from the dust outlet.
The invention has the beneficial effects that:
(1) the invention has simple structure, reasonable design, small occupied area, convenient and quick maintenance, long service life and low cost;
(2) the dust removal efficiency of the invention is up to 99.9%, the invention is especially suitable for collecting fine dust generated by straw burning, is also suitable for various working conditions, can solve the problem of collecting surface dust of filter materials with moisture, superfine and fiber properties, and the stripping rate reaches more than 96%;
(3) the filter cartridge is simple to maintain without arranging a transmission part, and can be used for a long time without replacement, so that the complex work of frequently replacing the filter bag is saved, and the maintenance cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an obliquely-inserted filter cartridge dust removal device for straw incineration according to the present invention.
Fig. 2 is a cross-sectional view of the filter cartridge of fig. 1.
Fig. 3 is a schematic view of the assembly of the filter cartridge of fig. 1 with left and right folding supports.
Wherein, 1-a box body; 2-a filter cartridge; 3-a left folding support; 4-a right folding support; 5-clean air outlet; 6-a pulse ash removal device; 7-an electromagnetic valve; 8-an access door; 9-a dusty air inlet; 10-an ash outlet; 21-a support cage; 22-a filter bag; 23-a gasket; 24-a locking nut; 25-hand wheel; 26-a first cover plate; 27-a second cover plate; 28-a third cover plate; 29-threaded rod.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
The invention discloses an obliquely inserted filter cylinder dust removal device for straw incineration, which comprises a box body 1, a filter cylinder 2, a left folding type supporting piece 3, a right folding type supporting piece 4 and a pulse ash removal device 6; the specific structure is as shown in fig. 1-3, the box body 1 is a hollow cuboid structure which is vertically arranged, the left folding type supporting piece 3 is vertically and obliquely arranged in the box body 1, and the interior of the box body 1 is divided into a gas purifying chamber and a dust gas chamber which are not communicated with each other left and right; a plurality of filter cylinders 2 are horizontally and obliquely arranged in a drawer mode from top to bottom in a dust air chamber of the box body 1, the left end of each filter cylinder 2 is hermetically connected with a left folding type supporting piece 3, the right end of each filter cylinder 2 is hermetically connected with a right folding type supporting piece 4, the insides of the filter cylinders are respectively communicated with a gas purifying chamber of the box body 1 through the left folding type supporting piece 3, and the clean gas after dust removal is discharged from the gas purifying chamber of the box body 1. Each filter cartridge 2 is arranged obliquely downward from left to right, and the inclination angle is 15 °. According to the invention, the filter cylinder 2 is obliquely installed in a drawer type, so that the filter cylinder 2 is more convenient to disassemble, and the synchronous dust removal effect is better.
As shown in fig. 1, the left folding type supporting member 3 is a step-shaped structure matched with the left ends of all the filter cartridges 2, is vertically and obliquely arranged at a left position inside the box body 1, and is respectively connected with the inner top surface, the inner side wall and the inner bottom surface of the box body 1 in a sealing manner; the right folding type supporting piece 4 is of a step-shaped structure matched with the right ends of all the filter cartridges 2, is vertically and obliquely arranged in the box body 1 close to the right side wall of the box body, and is respectively connected with the right side wall and the inner bottom surface of the box body 1 in a sealing manner; by using the left folding support 3 and the right folding support 4, the carrying capacity of the filter cartridge 2 is greatly improved.
In the invention, each filter cartridge 2 comprises a support cage 21, a filter bag 22, a first cover plate 26, a second cover plate 27, a third cover plate 28, a threaded rod 29 and a hand wheel 25; as shown in fig. 1 to 3, each support cage 21 is a hollow cylindrical frame structure which is obliquely arranged, and is further coaxially sleeved with a filter bag 22, the left end of each support cage 21 is further coaxially sleeved with a first cover plate 26, and the left end of each support cage is fixed with the left folding type support member 3 through a lock nut 24 in a threaded manner, and the left end of each filter bag 22 is tightly abutted with the left folding type support member 3 through the first cover plate 26 in a sealing manner; wherein, the right end face of each first cover plate 26 is tightly abutted against the left end face of the corresponding filter bag 22, and the left end face of each first cover plate is coplanar with the left end face of the corresponding support cage 21; a sealing gasket 23 is coaxially arranged between each first cover plate 26 and the left folding support 3, and each sealing gasket 23 is made of ceramic fiber. The invention prevents the dust-containing gas from leaking into the clean air chamber of the box body 1 by arranging the sealing gasket 23;
as shown in fig. 1 to 3, the length of each filter bag 22 is not less than the length of the corresponding support cage 21, a second cover plate 27 is coaxially attached to the right end face of the filter bag, a threaded rod 29 is coaxially screwed to the right end face of each second cover plate 27, and the left end of each threaded rod 29 vertically extends out of the corresponding second cover plate 27 and is coaxially and fixedly connected with the right end face of the corresponding support cage 21; the right end of each threaded rod 29 is fixed with the corresponding second cover plate 27 through the locking nut 24, vertically extends out of the corresponding position of the right folding type supporting piece 4, and is fixed with the right folding type supporting piece 4 through the matching of the third cover plate 28 and the hand wheel 25. Wherein, a sealing gasket 23 is respectively and coaxially arranged between each filter bag 22 and the corresponding second cover plate 27, and each sealing gasket 23 is made of ceramic fiber. The present invention prevents the entry of outdoor air from the fitting hole by providing the packing 23 therein.
In the invention, each filter bag 22 is woven by stainless steel cloth, and the section of the filter bag is in a fold shape; the two ends of each filter bag 22 are respectively provided with a first hoop coaxially, each filter bag 22 is fixed by the first hoop, the left end of each filter bag 22 is tightly attached to the corresponding first cover plate 26 by the first hoop, and the right end of each filter bag 22 is tightly attached to the corresponding sealing gasket 23 by the first hoop; a plurality of second anchor ears are sequentially sleeved on each filter bag 22 at intervals and coaxially along the axial direction of the filter bag, and each filter bag 22 is fixed through the second anchor ear. The filter area of the filter bag is 8-10 times of that of the ceramic fiber with the same specification, the appearance volume is small, and the occupied area is saved. As shown in fig. 1 to 3, through holes are respectively embedded and penetrated in positions on the left folding type supporting member 3 corresponding to each supporting cage 21, each through hole is coaxially arranged with the corresponding supporting cage 21, the diameter of each through hole is not larger than the inner diameter of the corresponding supporting cage 21, and the inside of each filter cartridge 2 is respectively communicated with the air purifying chamber of the box body 1 through the through hole.
As shown in fig. 1 to 3, a dust-containing air inlet 9 is further embedded in the top of the box body 1 at a position opposite to the dust air chamber, and the dust-containing air inlet 9 is communicated with the dust air chamber of the box body 1, so that 500 ℃ flue gas generated by a boiler can be conveniently introduced into the device for dust removal; an ash outlet 10 is embedded in the bottom of the box body 1 at a position corresponding to the dust air chamber, and the ash outlet 10 is communicated with the dust air chamber of the box body 1, so that dust collection is facilitated through a dust hopper of a dust remover; a clean air outlet 5 is embedded in the bottom of the box body 1 at a position corresponding to the air purifying chamber, and the clean air outlet 5 is communicated with the air purifying chamber of the box body 1 and used for discharging clean air.
The pulse ash removal device 6 is vertically arranged in an air purification chamber of the box body 1 and is used for respectively removing ash from the filter cartridge 2; as shown in fig. 1, the air inlet end of the pulse ash removing device 6 vertically extends upwards out of the top of the box body 1 and is electrically connected with the electromagnetic valve 7; the air outlet end of the pulse ash removal device 6 is respectively arranged towards the inside of each filter cylinder 2 in an inclined mode, and ash removal is carried out on the inside of each filter cylinder 2 through the through holes; the invention adopts the pulse dust cleaning device 6 to automatically clean dust according to the pressure difference, thereby leading the filter cylinder 2 to be used for a long time without replacement, saving the complex work of frequently replacing the filter bag 22 and saving the maintenance cost.
As shown in fig. 1, an access door 8 is further installed on the left side of the housing 1, and the filter cartridge 2 is installed through the access door 8 and the inside of the housing 1 is subjected to an access treatment.
The invention discloses a dust removal method of an obliquely-inserted filter cylinder dust removal device for straw incineration, which comprises the following steps of:
the method comprises the following steps: firstly, the device is respectively connected with a flue of a boiler outlet through a dust-containing air inlet 9 in a sealing way, connected with a dust hopper of a dust remover through a dust outlet 10 in a sealing way and connected with a draught fan through a clean air outlet 5 in a pipeline way.
Step two: then the 500 ℃ flue gas generated by the boiler enters the dust chamber of the box body 1 through the dust-containing air inlet 9, and after dust and particulate matters are removed through the filter bag 22 from top to bottom in sequence, the clean gas enters the air purifying chamber of the box body 1 and is discharged through the clean air outlet 5.
Step three: when it is detected that the pressure difference between the dust-containing air inlet 9 and the clean air outlet 5 exceeds a set value, the filter cartridges 2 need to be subjected to ash removal, and at this time, the electromagnetic valve 7 is opened, and compressed air is injected into the interior of each filter cartridge 2 through the pulse ash removal device 6.
Step four: the airflow in each filter cylinder 2 expands rapidly, so that dust falls off and is discharged from the dust outlet 10, and the effect of cleaning dust is achieved.
The invention has the beneficial effects that:
(1) the invention has simple structure, reasonable design, small occupied area, convenient and quick maintenance, long service life and low cost;
(2) the dust removal efficiency of the invention is up to 99.9%, the invention is especially suitable for collecting fine dust generated by straw burning, is also suitable for various working conditions, can solve the problem of collecting surface dust of filter materials with moisture, superfine and fiber properties, and the stripping rate reaches more than 96%;
(3) the invention does not need to arrange a transmission part, has simple maintenance, and the filter cylinder 2 can be used for a long time without replacement, thereby saving the tedious work of frequently replacing the filter bag 22 and saving the maintenance cost.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (10)
1. The utility model provides a straw burns and strains dust collector with formula of inserting to one side which characterized in that: comprises a box body, a filter cylinder, a left folding type supporting piece and a right folding type supporting piece; the left folding type supporting piece is vertically and obliquely arranged in the box body, and divides the interior of the box body into a gas purifying chamber and a dust and air chamber which are not communicated with each other; and a plurality of filter cylinders are horizontally and obliquely arranged in a drawer manner from top to bottom in the dust air chamber of the box body, the left end of each filter cylinder is hermetically connected with the left folding type supporting piece, the right end of each filter cylinder is hermetically connected with the right folding type supporting piece, the interior of each filter cylinder is communicated with the air purifying chamber of the box body through the left folding type supporting piece, and the cleaned air after dust removal is discharged from the air purifying chamber of the box body.
2. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 1, wherein: each filter cylinder is arranged from left to right and inclines downwards, and the inclination angle of each filter cylinder is 15 degrees.
3. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 2, wherein: the left folding type supporting piece is of a step-shaped structure matched with the left ends of all the filter cylinders, is vertically and obliquely arranged at the left position inside the box body, and is respectively connected with the inner top surface, the inner side wall and the inner bottom surface of the box body in a sealing manner; the right folding type supporting piece is of a step-shaped structure matched with the right ends of all the filter cylinders, is vertically and obliquely arranged in the box body close to the right side wall of the box body, and is respectively connected with the right side wall and the inner bottom surface of the box body in a sealing mode.
4. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 3, wherein: each filter cylinder comprises a support cage, a filter bag, a first cover plate, a second cover plate, a third cover plate, a threaded rod and a hand wheel; each supporting cage frame is of an obliquely arranged hollow cylindrical frame structure, a filter bag is sleeved on the supporting cage frame coaxially, a first cover plate is sleeved on the left end of each supporting cage frame coaxially, the left end of each supporting cage frame is fixed with the left folding type supporting piece through a locking nut in a screwed mode, and the left end of each filter bag is tightly abutted and jointed with the left folding type supporting piece in a sealed mode through the first cover plate; the length of each filter bag is not less than that of the corresponding support cage, a second cover plate is coaxially attached to the end face of the right end of each filter bag, a threaded rod is coaxially screwed on the end face of the right side of each second cover plate, and the left end of each threaded rod vertically extends out of the corresponding second cover plate and is coaxially and fixedly connected with the end face of the right side of the corresponding support cage; the right end of each threaded rod is fixedly connected with the corresponding second cover plate through a locking nut in a threaded mode, extends out of the corresponding position of the right folding type supporting piece vertically, and is fixedly connected with the right folding type supporting piece through a third cover plate and a hand wheel in a threaded mode.
5. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 4, wherein: the right end face of each first cover plate is abutted and attached to the left end face of the corresponding filter bag, and the left end face of each first cover plate is coplanar with the left end face of the corresponding support cage; and sealing gaskets are respectively arranged between each first cover plate and the left folding type supporting piece and between each filter bag and the corresponding second cover plate in a coaxial manner, and each sealing gasket is made of ceramic fibers.
6. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 5, wherein: each filter bag is woven by stainless steel cloth, and the section of each filter bag is in a corrugated shape; the two ends of each filter bag are respectively provided with a first hoop coaxially, each filter bag is fixed through the first hoop, the left end of each filter bag is tightly attached to the corresponding first cover plate through the first hoop, and the right end of each filter bag is tightly attached to the corresponding sealing gasket through the first hoop; and a plurality of second anchor ears are sequentially sleeved on each filter bag at intervals and coaxially along the axial direction of the filter bag, and each filter bag is fixed through the second anchor ear.
7. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 4, wherein: through holes are respectively embedded and penetrated in positions, corresponding to the support cages, of the left folding type support piece, each through hole is coaxially arranged with the corresponding support cage, the diameter of each through hole is not larger than the inner diameter of the corresponding support cage, and the interior of each filter cylinder is communicated with the air purifying chamber of the box body through the through holes.
8. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 1, wherein: a dust-containing air inlet is embedded into the top of the box body relative to the position of the dust air chamber, and the dust-containing air inlet is communicated with the dust air chamber of the box body; an ash outlet is embedded and arranged at the bottom of the box body relative to the position of the dust air chamber of the box body, and the ash outlet is communicated with the dust air chamber of the box body; and a clean air outlet is embedded in the position of the top of the box body relative to the air purifying chamber of the box body, and the clean air outlet is communicated with the air purifying chamber of the box body.
9. The obliquely-inserted filter cartridge dedusting device for straw incineration as claimed in claim 7, wherein: also comprises a pulse ash cleaning device; the pulse ash removal device is vertically arranged in the air purification chamber of the box body, and the air inlet end of the pulse ash removal device vertically extends upwards out of the top of the box body and is electrically connected with the electromagnetic valve; the air outlet end of the pulse ash removal device is obliquely arranged towards the interior of each filter cylinder, and ash removal is carried out on the interior of each filter cylinder through holes; the left side of box still the installation is equipped with the access door, and overhauls the processing through the access door to the inside of box.
10. The dust removal method of the obliquely inserted filter cylinder dust removal device for straw incineration as claimed in any one of claims 1 to 9, characterized by comprising the following steps:
the method comprises the following steps: firstly, the device is respectively connected with a flue at the outlet of a boiler through a dust-containing air inlet in a sealing way, connected with a dust hopper of a dust remover through a dust outlet in a sealing way and connected with a pipeline of a draught fan through a clean air outlet;
step two: then, 500 ℃ flue gas generated by the boiler enters a dust chamber of the box body through a dust-containing air inlet, sequentially passes through a filter bag from top to bottom to remove dust and particulate matters, and then enters a clean air chamber of the box body and is discharged through a clean air outlet;
step three: when the pressure difference between the dust-containing air inlet and the clean air outlet is detected to exceed a set value, the electromagnetic valve is opened, and compressed air is sprayed into each filter cylinder through the pulse ash removal device;
step four: the airflow in each filter cylinder expands sharply, and dust falls off and is discharged from the dust outlet.
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| CN202110600200.0A CN113209745A (en) | 2021-05-31 | 2021-05-31 | Obliquely-inserted filter cylinder dust removal device for straw incineration and dust removal method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116510436A (en) * | 2023-07-03 | 2023-08-01 | 江苏英达机械有限公司 | Oblique-insertion type filter cylinder dust remover for shot blasting machine |
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| CN214972636U (en) * | 2021-05-31 | 2021-12-03 | 中国天楹股份有限公司 | Oblique-insertion type filter cylinder dust removal device for straw incineration |
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| US4820320A (en) * | 1988-02-16 | 1989-04-11 | Cox Donald G | Compact dust collector |
| CN210434182U (en) * | 2019-07-11 | 2020-05-01 | 广东蓝龙环境科技有限公司 | Pulse filter cartridge dust remover |
| CN211486963U (en) * | 2019-12-26 | 2020-09-15 | 山东通源电力电器有限公司 | Filter cartridge dust remover |
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| CN116510436A (en) * | 2023-07-03 | 2023-08-01 | 江苏英达机械有限公司 | Oblique-insertion type filter cylinder dust remover for shot blasting machine |
| CN116510436B (en) * | 2023-07-03 | 2023-09-08 | 江苏英达机械有限公司 | Oblique-insertion type filter cylinder dust remover for shot blasting machine |
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