CN205598794U - Dry -type pulse bag dust remover - Google Patents

Abstract

The utility model discloses a dry -type pulse bag dust remover, including support, square casing, ash bucket, filter and gas blowing device, square casing is installed on the support, the ash bucket is installed in square casing below, be equipped with the filter bag between filter hanging wall, the filter lower wall, the filter hanging wall includes that filter backup pad and the pulsating gas flow who locates filter backup pad middle part enter the mouth, and the pulsating gas flow entry is the venturi tube structure, pulsating gas flow entry upper end inside wall is equipped with the connecting rod, and the connecting rod passes through the stiffener and is connected with the filter lower wall, gas blowing device includes that the air deposits storage tank, diaphragm valve, interior gas blow pipe and outer gas blow pipe. The filter lower wall forms cooperative effect with upper portion wen's tubular pulsating gas flow entry, increases pulse washing effect, the solid impurity on the filter bag is effectively got rid of in pouring the filter bag to more simple messenger pulsating gas flow high efficiency, and it is fabulous to get rid of the effect, need not to change the filter filter bag, can reuse.

Description

Dry type pulse bag deduster

Technical field

This utility model belongs to field of environment protection equipment, is specifically related to a kind of dry type pulse bag deduster, Ke Yiyong In burning coal burning boiler dedusting.

Background technology

Along with the development of modern industry, the impact that the health of environment and the mankind is caused by dust is the tightest Weight, effectively administers dust pollution, and Environmental protection pay attention to day by day and global warming phenomenon are serious in recent years, In order to advocate carbon reduction, environmental protection industry is flourish, purifies the living environment of the mankind, it has also become everyone Common recognition.In order to safeguard that production environment is clean, it is necessary to cleaning is by the place of dust pollution in time.Cleaner unit, Especially sack cleaner, is widely used in the various works such as metallurgy, building materials, machinery, chemical industry, mine In the udst separation of ore deposit enterprise non-fiber industrial dust and the recovery of material.But, existing sack cleaner, There is the drawbacks such as ash-removal effect is undesirable, purification efficiency is low, life-span of the filter bag is short, maintenance load is big, sternly Heavily have impact on normal, the effective use of filter, so, need the structure to existing filter badly and change Enter so that deashing is convenient, efficiency high, need to use blowning installation to filter deashing, to improve dedusting effect Really.Existing general employing independent air gun mode or blowning installation send high-power gas please be grey to filter, The former does not speaks more, it has not been convenient to commercial Application, and the latter presently, there are gas transmission blow-by, and trachea installs not side The problem such as just, it is therefore desirable to design new blowning installation with more preferable environment purification.

The principle of literary composition mound effect is then when blowing air over obstacle, near ports above the lee face of obstacle Air pressure is relatively low, thus produces adsorption and cause the flowing of air, it is simply that air-flow from the coarse to fine, To accelerate gas flow rate, gas is made to form " vacuum " district at the rear side of venturi outlet.Existing literary composition Family name's pipe is only used for the highly energy-consuming cleaner unit of high-voltage pulse air-flow, there is high pressure resistant, stabilization to whole equipment With a disadvantageous difficult problem in raising service life；Need especially the problem solved be existing venturi tube structure be all independent Outside filter, this exists, and the position that takes up space is big, install that not mate, assemble loaded down with trivial details one be class problem, And prior art does not has the way what is good to solve, on the one hand due to filter production field and Wen's structure Manufacture field is not integrated, and only just has at special occasions and a little occurs simultaneously, and two aspect Wen's dead loads are big, unfavorable In stablizing of filter, especially filter bag.The most existing Venturi tube is not suitable for cleaning filter, and it is simply For mixed dust and water effectively, in order to make dust assemble；And air-flow incidence narrow width, pulse efficiency The lowest.And existing pulse structure is unfavorable for the efficient utilization of overall cleaner；Therefore, necessary Research and develop novel equipment, to remove coal-fired flue-gas efficiently.

Summary of the invention

The purpose of this utility model is to provide a kind of dry type pulse bag deduster, is used for coal burning boiler dedusting of burning, Be conducive to environmental protection development.

For reaching above-mentioned utility model purpose, the technical solution adopted in the utility model is: a kind of dry type pulse Bag dust collector, including support, square casing, ash bucket, filter and blowning installation；Described square casing It is installed on support；Described ash bucket is installed on below square casing；Described housing bottom surface opening；Described ash bucket End face opening；Described housing connects with ash bucket；The base area of described housing and the top surface area of described ash bucket Unanimously；Two symmetrical sidewalls of described housing are respectively equipped with air intake and air outlet slit；In described housing Portion is arranged over installing plate；Described filter is installed on described installing plate；Described hopper bottom is provided with dust Outlet；Described filter includes dish on filter, filter lower wall and is positioned at dish on filter, filter Filter bag between lower wall；On described filter, dish includes filter support plate and is located in the middle part of filter support plate Air pulse entrance；Described air pulse entrance is venturi tube structure；Position, described air pulse entrance lower end Below filter support plate；It is provided with bulge-structure in the middle of described filter lower wall；Described bulge-structure is top The hollow-core construction that end seal is closed；Described blowning installation includes air bucket, diaphragm valve, interior gas blow pipe and outer Gas blow pipe；Described air bucket, diaphragm valve are positioned at hull outside；Described interior gas blow pipe is positioned at enclosure interior； Described outer gas blow pipe passes housing sidewall；Described air bucket is provided with air outlet conduits；Described air exports Pipe is connected by the air intake of flange with described diaphragm valve；Described outer gas blow pipe is by flange and described diaphragm The air outlet slit of valve connects；One end that described outer gas blow pipe is positioned at housing is cased with truncated cone-shaped sealing ring；Described The bottom surface of truncated cone-shaped sealing ring contacts with case inside wall；Described interior gas blow pipe is near one end of outer gas blow pipe It is provided with gas blow pipe sleeve pipe；Described gas blow pipe sleeve pipe is provided with and described truncated cone-shaped inside the one end away from interior gas blow pipe The structure of sealing ring outer surface coupling；Described interior gas blow pipe is provided with venthole；Described venthole is positioned at described arteries and veins Directly over qi of chong channel ascending adversely inflow entrance.

In this utility model, filter bag includes supporter and the bag body of parcel supporter, can be existing nothing Spin cloth filter bag, fabric filter bag, generally circular；Supporter typically uses elastic piston ring, can be formed tight Close type contacts, it is to avoid smoke spillage；Filter bag upper end is arranged on filter support seat, and lower end is arranged on filtration On device lower wall, filter upper lower burrs can be connected.Square casing has six sidewalls, and diapire is hatch frame, Connect with ash bucket, in four sidewalls, two symmetrical sidewalls are respectively provided with air inlet and air outlet, separately Two sidewalls typically seal；Air is entered by the air inlet of housing, goes out from air outlet, middle through filtering Device, dust is intercepted absorption by filter, thus reaches the effect of flue gas ash removal；Use the housing of square structure, On the one hand be conducive to the installation of the parts such as filter, mainly avoid gas leakage, i.e. prevent partial fume without Filter and directly go out from air outlet.

Those skilled in the art know, and housing, ash bucket are all hollow-core construction, according to actual installation position, ash bucket Being installed on below housing, ash bucket end face size is in the same size with housing bottom surface, is all hatch frame, thus shell Internal portion is internal with ash bucket to be connected；Thus, the dust that the filter bag that enclosure interior is installed is shaken off can be the most straight Connect and fall to ash bucket, there is not to fall ash dead angle, then the dust outlet below ash flue bucket is collected and got rid of.

Filter is vertically installed at enclosure interior, forms smoke filtration layer；By being provided above in enclosure interior Installing plate can facilitate stable installation filter, and installing plate does not limits with the distance of housing top wall, typically Being beneficial to filter install, the installation quantity of filter, arrangement mode can be according to housing size, filtrations Device size and flue gas flow are selected, it is to avoid smoke spillage.

Filter support plate is in order to bear the weight of filter, and filter is arranged on shell by filter support plate On the installing plate in internal portion, filter can arrange installing hole on the supporting plate, utilizes screw (bolt) permissible Filter is installed easily；Preferably filter support plate is formed around baffle plate, and the baffle plate that surrounding is connected is permissible The gravity making filter is uniformly dispersed, and beneficially gripper shoe is stable with the active force of installing plate, ensures and filters Device is operationally stable；It is further preferred that filter support plate is provided with multiple connecting plate, connecting plate can To connect the baffle plate of different azimuth, it is also possible to connect baffle plate and air pulse entrance sidewall, it is also possible to connecting Connecting plate is set again, by these connecting plates further such that active force is uniformly dispersed, it is to avoid formed between plate The strength enhancing of stress central hot water supply system, beneficially filter support plate.Pulse air in the middle part of filter support plate Inflow entrance refers to that filter support plate center is consistent with air pulse entrance center, and the most whole filter can be seen Become a symmetrical structure so that filter support plate uniform force, can effectively alleviate filter and installation Active force and abrasion suffered by plate installed surface.Air pulse entrance is hollow tubular, and bottom is cylindrical, top For truncated cone-shaped, two parts constitute venturi tube structure, and upper portion side wall tilts, and lower sides is vertical, cylindrical 1.2～1.5 times that a height of truncated cone-shaped is high, can effectively promote pulse efficiency, overcome existing Venturi tube simultaneously Problem unmatched with filter bag.This utility model dish the most on the filter arranges the arteries and veins of venturi tube structure Qi of chong channel ascending adversely inflow entrance, one-body molded with filter support plate, effectively promote pulse efficiency；Filter support plate It is positioned at air pulse entrance upper cone bench-type sidewall, air pulse with the joint face of air pulse entrance side Entrance lower end is positioned at below filter support plate, uses integral forming process simultaneously, ensures dish on filter Stability, the defect easily rocked when overcoming filter shakiness, the work that prior art exists.

Being provided with bulge-structure in the middle of filter lower wall, be interior with filter interior, bulge-structure is ecto-entad Projection, i.e. inwardly protruding by filter bottom；What this utility model was creative arranges projection in filter bottom Structure, when air pulse undershoot to bulge-structure, is effectively formed bounce-back, plays the effect of distribution air-flow, Enter interruption-forming cooperative effect with top Venturi type air pulse, increase pulse lavage effect.Bulge-structure is The hollow-core construction of top closure, bulge-structure bottom opening the most of the present utility model, such as circular platform type are protruding, Up-small and down-big, microcephaly one end is closed, and major part one end open is hollow from one section of microcephaly to major part, is carrying Filter body weight is alleviated while rising pulsatile effect.Preferably, bulge-structure top to sidewall bottom is arranged even Fishplate bar, promote filter lower wall intensity, it is to avoid due to the impulsive force of air pulse may bring to lower wall And the destruction of stability between filter bag.It is further preferred that medial wall, air pulse entrance upper end is provided with connection Bar, connecting rod is connected with bulge-structure top by bracing piece.Arrange equal between lower wall on the filter Attachment means in addition to filter bag, it is ensured that filter is stable.Can be at venturi tube structure top inner side wall Arranging two openings of symmetry, connecting rod rides on two openings；Bracing piece is permissible with the connection of bulge-structure Employing screw connects, convenient dismounting.

By diaphragm valve, the air of air bucket is blown in filter sock, is fully located at enclosure interior Gas blow pipe is interior gas blow pipe, and the gas blow pipe through housing sidewall is outer gas blow pipe；Outer gas blow pipe by sleeve pipe with Outer gas blow pipe connects, good seal, convenient disassembly, reduces artificial.Interior gas blow pipe install on a mounting board or Person is arranged on case inside wall, as long as in enclosure interior stably.Air bucket, outer gas blow pipe with And the parts such as diaphragm valve are arranged according to actual place, it is possible to make pulse gas carry.

It is perpendicular to the waist place straight line on base as rotary shaft, the song that remaining each limit rotates and formed with right-angled trapezium The solid that face is surrounded is called round platform；Rotary shaft is called the axle of round platform, and the right-angled trapezium upper and lower end rotates institute The disc become is referred to as the upper and lower bottom surface of round platform, and another waist rotates formed curved surface and is referred to as the side of round platform, side On face, the waist of the right-angled trapezium of each position is referred to as the bus of round platform, the height of round platform be between upper and lower bottom surface away from From.The upper bottom surface of the truncated cone-shaped sealing ring that this utility model utilizes is the bottom surface that area is little, during actual application, Truncated cone-shaped sealing ring is enclosed within outer gas blow pipe, relative to interior gas blow pipe, is equivalent to form a gradually thick change, When gas blow pipe sleeve pipe contacts with truncated cone-shaped sealing ring, under propelling movement power, contact can be increasingly tighter, sealing ring It is close to case inside wall, thus is reached efficient sealed effect, and convenient disassembly, more will not damage and blow Trachea, housing etc., achieve beyond thought technique effect.

Gas blow pipe casing pipe sleeve is in one end of interior gas blow pipe, and the length exposed can select as required, it is therefore desirable to The most just compress with sealing ring；Outside being provided with truncated cone-shaped sealing ring inside one end away from interior gas blow pipe on sleeve pipe The surface of surface matching, when sleeve pipe is by thrust, inner side and sealing ring energy good contact, and along sealing The outer surface that circle is gradually thick is pressed tighter and tighter, it is ensured that seal.Preferably, a height of postpartum mastitis of truncated cone-shaped sealing ring Trachea is positioned at the half of the length that enclosure interior is divided, it is to avoid due to the impulsive force of air pulse may bring right The destruction of stability between interior gas blow pipe and outer gas blow pipe.It is further preferred that interior gas blow pipe and outer gas blow pipe Pipe diameter size consistent.Not only contributing to the reduction of production cost, standard is unified；It is more beneficial for respectively connecing Coupling between contacting surface seals.Interior gas blow pipe is not in contact with each other with outer gas blow pipe, leaves certain interval, favorably It is tightly combined with round platform sealing gasket in sleeve pipe.

Diaphragm valve belongs to prior art, with gas inlet and outlet, it is provided that impulsive force, but existing diaphragm valve leads to Cross trip sword and connect trachea；This utility model arranges flange at diaphragm valve air inlet/outlet first, overcomes existing film The installation of the trip land that plate valve air inlet/outlet is arranged is inconvenient, the process that tightens is fragile, pipeline is caused damage The defects such as wound.Venthole on interior gas blow pipe and filter matching, i.e. pulse source of the gas is at the pulse air of filter Directly over inflow entrance, such gas through diaphragm valve, is formed air pulse by air bucket, then through postpartum mastitis Trachea is to interior gas blow pipe, finally from venthole, blow into filter through the air pulse entrance of venturi tube structure Filter bag, reach remove filter bag dust purpose.

This utility model is provided with vibrating device in ash bucket lateral wall, can tap or rapping ash bucket, thus have It is beneficial to dust releasing, is more easy to discharge from dust outlet；High charge level detection device it is provided with, it is to avoid powder inside ash bucket Dirt is piled up.Ash bucket disclosed in this utility model is truncated rectangular pyramids structure, and upper bottom surface is similar rectangle or just Square, side is isosceles trapezoid, and according to installment state, the upper bottom surface of ash bucket is consistent with housing bottom surface；For The ash that falls is smooth and easy, no backup, and the incline of truncated rectangular pyramids and the angle of upper bottom surface are 65～85 degree.

Owing to technique scheme is used, this utility model compared with prior art has the advantage that

1. this utility model makes public for the first time a kind of new dry type pulse bag deduster, is exclusively used in burning coal pot Stove dedusting, arranges the air pulse entrance of venturi tube structure, the most on the filter to gas in the middle of dish Flowing produces impact, adds air blast incidence width；The air pulse entrance of venturi tube structure and filter support Plate is one-body molded, effectively promotes pulse efficiency；Air pulse entrance lower end is positioned at below filter support plate, Use integral forming process simultaneously, ensure the stability of dish on filter, overcome the mistake that prior art exists The defect easily rocked when filter shakiness, work.

2. this utility model is provided with bulge-structure first in the middle of filter lower wall, inside by filter bottom Projection, when air pulse undershoot to bulge-structure, is effectively formed bounce-back, plays the effect of distribution air-flow, Enter interruption-forming cooperative effect with top Venturi type air pulse, increase pulse lavage effect；Arrange convex simultaneously Playing structure is the hollow-core construction of top closure, alleviates filter body weight, overcome while promoting pulsatile effect The difficult problem that prior art filter can increase the weight of.

3. this utility model creatively arranges sleeve pipe and sealing ring between inside and outside gas blow pipe, ensures big Sealing stability when flow rate of gas is passed through, overcomes the defect of prior art poor sealing；Enter at diaphragm valve Gas outlet arranges flange, easy for installation, and during maintenance, dismounting is quickly, saves artificial, simultaneously flange avoid right The damage of gas pipeline, overcomes that prior art weld connects maintenance difficult, trip sword connects unstable fragile The defect of pipeline.

4. blowning installation disclosed in this utility model is prepared uncomplicated, and hinge structure is the simplest, can Making air pulse efficiently pour in filter bag, effectively remove the solid impurity on filter bag, removal effect is fabulous；Especially It is that each several part is easy to connect, and dismounting is easily, it is thus also avoided that the prior art damage to material, achieves meaning Unimaginable effect

5. dry type pulse bag deduster disclosed in this utility model, rationally, dismounting is easily, suitable for structure composition Use multiple filter bag；By the design of novel blowning installation, effectively introducing a large amount of air pulses, being inhaled by filter bag has Dust shake off, cleaning performance reaches optimal；Service life of equipment is long simultaneously, it is adaptable to high temperature, Acidity of Aikalinity The dust removal process of coal-fired flue-gas.

Accompanying drawing explanation

Fig. 1 is dry type pulse bag deduster structural representation；

Fig. 2 is the structural representation of dish on filter；

Fig. 3 is filter lower disc schematic diagram；

Fig. 4 is outer gas blow pipe, interior gas blow pipe and gas blow pipe sleeve structure schematic diagram；

Fig. 5 is housing and ash bucket structural representation；

Wherein, support 1, square casing 2, installing plate 21, gas access 22, gas outlet 23, ash bucket 3, dust outlet 31, vibrating device 32, high charge level detection device 33, filter 4, filter support Plate 41, air pulse entrance 42, baffle plate 43, connecting plate 44, screwed hole 45, circular platform type projection 46, Long connecting plate 47, blowning installation 5, air bucket 51, diaphragm valve 52, interior gas blow pipe 53, postpartum mastitis Trachea 54, truncated cone-shaped sealing ring 55, gas blow pipe sleeve pipe 56, venthole 57 and truncated cone-shaped sealing ring phase The structure 58 joined.

Detailed description of the invention

Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:

Embodiment one

Seeing accompanying drawing 1, a kind of dry type pulse bag deduster, including support 1, square casing 2, ash bucket 3, mistake Filter 4 and blowning installation 5；Square casing is installed on support, and ash bucket is installed on below square casing； Housing bottom surface opening, ash bucket end face opening, hopper bottom is provided with dust outlet (for sake of simplicity, this figure does not has Mark, is specifically shown in Fig. 5), ash bucket lateral wall is provided with vibrating device 32, is provided with high charge level detection inside ash bucket Device 33, ash bucket is truncated rectangular pyramids structure, and the incline of truncated rectangular pyramids and the angle of upper bottom surface are 65 degree；Housing Base area is consistent with the top surface area of ash bucket, and housing connects with ash bucket；Enclosure interior is arranged over installing plate 21, filter is installed on installing plate, and filter includes dish on filter, filter lower wall and was positioned at Filter bag between dish, filter lower wall on filter, on filter, dish and filter lower wall all leave installation filter bag Groove, each parts can be fixed by the way of existing encapsulating；On filter, dish includes filter support plate With the air pulse entrance being located in the middle part of filter support plate, in the middle of filter lower wall, it is provided with circular platform type projection knot Structure, is specifically shown in accompanying drawing 2 and accompanying drawing 3；Two symmetrical sidewalls of housing be respectively equipped with gas access 22 with Gas outlet 23；Blowning installation includes air bucket 51, diaphragm valve 52, interior gas blow pipe 53 and outer Gas blow pipe 54；Air bucket, diaphragm valve are positioned at hull outside, and interior gas blow pipe is positioned at enclosure interior, outward Gas blow pipe passes housing sidewall；The air outlet conduits of air bucket is by the air intake of flange with diaphragm valve Connect；Gas blow pipe is connected with the air outlet slit of diaphragm valve by flange；Outer gas blow pipe is positioned at one end of housing It is cased with truncated cone-shaped sealing ring 55；The bottom surface of truncated cone-shaped sealing ring contacts with case inside wall；Interior gas blow pipe It is provided with gas blow pipe sleeve pipe 56 near one end of outer gas blow pipe；In gas blow pipe sleeve pipe one end away from interior gas blow pipe Side is provided with the structure mated with truncated cone-shaped sealing ring outer surface；Interior gas blow pipe is provided with venthole 57；Venthole It is positioned at directly over described air pulse entrance；Interior gas blow pipe is arranged on case inside wall, truncated cone-shaped sealing ring A height of outer gas blow pipe penetrate the half of length of housing parts, the pipe diameter size of interior gas blow pipe and outer gas blow pipe Unanimously, interior gas blow pipe is not in contact with each other with outer gas blow pipe.

Seeing accompanying drawing 2, for the structural representation of dish on filter, on filter, dish includes filter support plate 41 with the air pulse entrance 42 being located in the middle part of filter support plate；Filter support plate is formed around baffle plate 43, and it is provided with multiple connecting plate 44, it is additionally provided with the screwed hole 45 for installing；Air pulse entrance is literary composition Family name's tubular construction, bottom is cylindrical, and top is truncated cone-shaped, 1.2 times that cylindrical a height of truncated cone-shaped is high； Air pulse entrance lower end is positioned at below filter support plate；Filter support plate center and air pulse entrance Center is consistent, and air pulse enters in the middle part of filter support plate so that filter support plate uniform force, can Effectively to alleviate active force and abrasion suffered by filter and installing plate installed surface.

Seeing accompanying drawing 3, for filter lower disc schematic diagram, left figure is vertically to use state diagram, and centre sets Having circular platform type projection 46, up-small and down-big, microcephaly one end is closed, and major part one end open, from microcephaly to major part One section be hollow, when air pulse undershoot to bulge-structure, be effectively formed bounce-back, play distribution air-flow Effect, enter interruption-forming cooperative effect with top Venturi type air pulse, increase pulse lavage effect, Filter body weight is alleviated while promoting pulsatile effect.In order to embody the medial wall of bulge-structure and hollow, In figure, position relationship and real use state is out of position, and that i.e. in figure, area is little faces down, and sees right figure； Along bulge-structure medial wall, bulge-structure top to sidewall bottom arranges long connecting plate 47, promotes and filters The intensity of device lower wall, it is to avoid owing to what the impulsive force of air pulse may be brought stablizes between lower wall and filter bag The destruction of property.

See accompanying drawing 4, for outer gas blow pipe, interior gas blow pipe and gas blow pipe sleeve structure schematic diagram, outer air blowing Pipe 54 one end is cased with truncated cone-shaped sealing ring 55；Gas blow pipe casing pipe sleeve 56 is in interior gas blow pipe 53 one end, inner side It is provided with the structure 58 matched with truncated cone-shaped sealing ring, such that it is able to be tightly connected inside and outside gas blow pipe；Interior air blowing One end of pipe is provided with gas blow pipe sleeve pipe；The other end can be used for being arranged on case inside wall；And it is provided with venthole 57, venthole and filter matching, such gas by air bucket through diaphragm valve, then through outer gas blow pipe To interior gas blow pipe, finally blow into filter from venthole, reach to remove the purpose of solid impurity.

Accompanying drawing 5 is support 1, square casing 2 and ash bucket 3 structural representation, and ash bucket is installed on square casing Lower section, the base area of square casing is consistent with the top surface area of ash bucket, and square casing connects with ash bucket, ash Being provided with dust outlet 31 bottom bucket, outlet concrete shape is not particularly limited, and is attained by effect；Ash bucket For truncated rectangular pyramids structure, the incline of truncated rectangular pyramids and the angle of upper bottom surface are 65 degree, and ash bucket lateral wall is provided with vibration Device 32.

Embodiment two

Dry type pulse bag deduster, including support, square casing, ash bucket, filter and blowning installation； Square casing is installed on support, and ash bucket is installed on below square casing；Housing bottom surface opening, ash bucket end face Opening, hopper bottom is provided with dust outlet, and ash bucket lateral wall is provided with vibrating device, is provided with high material inside ash bucket Level detecting apparatus, ash bucket is truncated rectangular pyramids structure, and the incline of truncated rectangular pyramids and the angle of upper bottom surface are 65 degree；Shell The base area of body is consistent with the top surface area of described ash bucket, and housing connects with ash bucket；Set above enclosure interior Having installing plate, filter to be installed on described installing plate, filter includes dish on filter, filter lower wall And on filter filter bag between dish, filter lower wall；On filter, dish includes filter support plate With the air pulse entrance being located in the middle part of filter support plate；Air pulse entrance is venturi tube structure, bottom For cylinder, top is truncated cone-shaped, 1.5 times that cylindrical a height of truncated cone-shaped is high；Under air pulse entrance End is positioned at below filter support plate；Filter support plate center is consistent with air pulse entrance center；Filter Being provided with the circular platform type as embodiment one in the middle of device lower wall protruding, medial wall, air pulse entrance upper end is provided with Connecting rod, connecting rod is connected with circular platform type protruding apex by bracing piece, and bracing piece is permissible with circular platform type projection Employing screw connects, and is provided with the attachment means in addition to filter bag equal between lower wall on the filter, protects Card filter is stable, and connecting rod constitutes T-shaped structure with bracing piece, and connecting rod two ends are separately mounted to pulse Air flow inlet medial wall, bracing piece one end is arranged in filter lower wall circular platform type projection, on filter dish with Filter lower wall all leaves the groove installing filter bag, can fix each parts by the way of existing encapsulating；Shell Two symmetrical sidewalls of body are respectively equipped with gas access and gas outlet；Blowning installation is with embodiment one by one Cause.

Embodiment three

A kind of dry type pulse bag deduster, agent structure is consistent with embodiment one, including support, square casing, Ash bucket, filter and blowning installation；Wherein having following part dimension difference 1. ash bucket is truncated rectangular pyramids structure, The incline of truncated rectangular pyramids and the angle of upper bottom surface are 75 degree；2. air pulse entrance is venturi tube structure, bottom For cylinder, top is truncated cone-shaped, 1.4 times that cylindrical a height of truncated cone-shaped is high.

Coal-fired flue-gas enters enclosure interior from square casing gas access, through filter, carries out flue gas ash removal； Open diaphragm valve, pulse of compressed air is entered the air pulse entrance of filter, filter is arranged in the middle of dish The air pulse entrance of venturi tube structure, produces impact to gas flowing, adds air blast incidence width；Work as arteries and veins When rushing down washing to lower wall bulge-structure, it is effectively formed bounce-back, plays the effect of distribution air-flow, with top Venturi type air pulse enters interruption-forming cooperative effect, increases pulse lavage effect；The most simply make pulse High efficiency air flow pours in filter bag, effectively removes the solid impurity on filter bag, and removal effect is fabulous, it is not necessary to change Filter sock, can reuse, and can extend filter life, saves the energy；Detect according to high charge level The prompting of device, opens the vibrating device of ash bucket lateral wall, accelerates the ash that falls.Measure through repeatedly actual, this The dry type pulse bag deduster dust clearance of utility model reaches 98%.

Claims (10)

1. a dry type pulse bag deduster, including support, square casing, ash bucket, filter and air blowing Device；Described square casing is installed on support；Described ash bucket is installed on below square casing；Described housing Bottom surface opening；Described ash bucket end face opening；Described housing connects with ash bucket；The base area of described housing with The top surface area of described ash bucket is consistent；Two symmetrical sidewalls of described housing are respectively equipped with air intake with empty Gas exports；Described enclosure interior is arranged over installing plate；Described filter is installed on described installing plate；Institute State hopper bottom and be provided with dust outlet；Described filter includes dish on filter, filter lower wall and is positioned at Filter bag between dish, filter lower wall on filter；On described filter, dish includes filter support plate and sets Air pulse entrance in the middle part of filter support plate；Described air pulse entrance is venturi tube structure；Described Air pulse entrance lower end is positioned at below filter support plate；It is provided with bulge-structure in the middle of described filter lower wall； Described bulge-structure is the hollow-core construction of top closure；Described blowning installation include air bucket, diaphragm valve, Interior gas blow pipe and outer gas blow pipe；Described air bucket, diaphragm valve are positioned at hull outside；Described interior air blowing Pipe is positioned at enclosure interior；Described outer gas blow pipe passes housing sidewall；Described air bucket is provided with air output Pipe；Described air outlet conduits is connected with the air intake of described diaphragm valve by flange；Described outer gas blow pipe leads to Cross flange to be connected with the air outlet slit of described diaphragm valve；One end that described outer gas blow pipe is positioned at housing is cased with circle Platform shape sealing ring；The bottom surface of described truncated cone-shaped sealing ring contacts with case inside wall；Described interior gas blow pipe leans on One end of nearly outer gas blow pipe is provided with gas blow pipe sleeve pipe；Inside described gas blow pipe sleeve pipe one end away from interior gas blow pipe It is provided with the structure mated with described truncated cone-shaped sealing ring outer surface；Described interior gas blow pipe is provided with venthole；Described Venthole is positioned at directly over described air pulse entrance.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described interior gas blow pipe is pacified Dress is on a mounting board；Or described interior gas blow pipe is arranged on case inside wall.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described filter support Plate is formed around baffle plate；Described filter support plate is provided with multiple connecting plate.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described filter lower wall The bulge-structure circular platform type bulge-structure that centre is provided with；The top of described bulge-structure to sidewall bottom is arranged even Fishplate bar.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described pulse air flows into Mouth medial wall, upper end is provided with connecting rod, and connecting rod is connected with bulge-structure top by bracing piece.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described venturi tube structure Bottom be cylindrical, top is truncated cone-shaped；1.2～1.5 times that a height of truncated cone-shaped of described cylinder is high.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described truncated cone-shaped seals The a height of outer gas blow pipe of circle penetrates the half of the length of housing parts.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described interior gas blow pipe with The pipe diameter size of outer gas blow pipe is consistent；Described interior gas blow pipe is not in contact with each other with outer gas blow pipe.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described ash bucket lateral wall It is provided with vibrating device；High charge level detection device it is provided with inside described ash bucket.

Dry type pulse bag deduster the most according to claim 1, it is characterised in that: described ash bucket is four Terrace with edge structure；The incline of described truncated rectangular pyramids and the angle of upper bottom surface are 65～85 degree.