CN210699208U - Large-circulation anti-bag-pasting combined type pulse bag dust collector - Google Patents

Abstract

The utility model discloses a big circulation is prevented pasting bag combined type pulse sack cleaner, the power distribution box comprises an upper box body, the well box, the card, the ash bucket, a support frame, the set flue, air inlet water conservancy diversion house steward, air inlet branch pipe and pulse dust remover, be equipped with the air-purifying chamber in last box, air-purifying chamber and set flue intercommunication, the air inlet water conservancy diversion house steward passes through the air inlet branch pipe and communicates with the surge chamber that the big opening end department of ash bucket was equipped with, the surge chamber still communicates with well box and ash bucket respectively, be equipped with the deashing ware at ash bucket tip opening part, be equipped with the unloading valve below the deashing ware, be equipped with circulation spraying device in unloading valve below, circulation spraying device in advance communicates with unloading valve and surge chamber respectively, pulse dust remover is through the jetting pipeline and the interior a plurality of filter bag subassembly. The utility model has the advantages that: the dust-carrying air flow can be prevented from generating abrasion and dust deposition at the bent pipe of the air inlet branch pipe, the air inlet resistance of the whole equipment is reduced, meanwhile, the filter bag can be prevented from being damaged due to the fact that the dust-carrying air flow erodes, and the service life is prolonged.

Description

Large-circulation anti-bag-pasting combined type pulse bag dust collector

Technical Field

The utility model relates to an industrial dust removal device technical field, specific saying so relates to a prevent pasting bag combined type pulse sack cleaner of big circulation.

Background

A bag filter is a dry dust filter that is suitable for capturing fine, dry, non-fibrous dust. The pulse bag dust collector is a novel improved high-efficiency pulse bag dust collector on the basis of a bag dust collector. In order to further improve the pulse bag type dust collector, the improved pulse bag type dust collector has the advantages of high purification efficiency, large gas treatment capacity, stable performance, convenience in operation, long service life of a filter bag, small maintenance workload and the like, and is structurally improved from a pulse valve, so that the problems of open placement and low pressure of a compressed air source are solved. However, the existing pulse bag dust collector has the following disadvantages:

1. whether the air inlet mode is performed on the side wall of the ash hopper or the air inlet mode is performed on the side wall of the middle box body, the bent pipes of the air inlet branch pipes are easily abraded, and ash is easily accumulated on the bent pipes of the air inlet branch pipes;

2. the air inlet branch pipes erected outside the box body enable the air inlet flow of the whole equipment to be lengthened, so that the resistance of the whole equipment is increased;

3. the air inlet speed of the branch pipe outside the box body is high, so that after dust-laden gas enters the box body, the air quantity of a filtering area is not easy to be uniformly distributed, and the local air speed at the lower end of the filter bag is easy to cause overlarge, so that individual filter bags are washed and damaged;

4. after the dust-carrying gas enters the ash bucket, the space utilization of the ash bucket is small, and partial waste is easily caused;

5. when the dust bag is used for dust containing water vapor, oil mist and other working conditions, the bag is easily pasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big circulation prevents sticking with paste a bag combined type pulse sack cleaner for solve the problem that current pulse sack cleaner exists among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a big circulation anti-sticking bag combined type pulse bag dust collector comprises an upper box body, a middle box body, a pattern plate, an ash bucket, a support frame, a collecting flue, an air inlet guide header pipe, an air inlet branch pipe and a pulse dust collector, wherein the upper box body is arranged at the upper part of the pattern plate;

an air purifying chamber is arranged in the upper box body and is communicated with the collecting flue, the air inlet guide main pipe is communicated with a buffer chamber arranged at the large opening end of the ash hopper through an air inlet branch pipe, the buffer chamber is also communicated with the middle box body and the ash hopper respectively, an ash cleaner is arranged at the small opening end of the ash hopper, an ash discharging valve is arranged below the ash cleaner, a circulating pre-spraying device is arranged below the ash discharging valve, and the circulating pre-spraying device is communicated with the ash discharging valve and the buffer chamber respectively;

the pulse dust collector is communicated with the filter bag assemblies arranged in the middle box body through a blowing pipeline;

the air inlet branch pipe is communicated with the buffer chamber, and a large-caliber valve is arranged at the communicating position of the air inlet branch pipe and the buffer chamber, one end of the large-caliber valve is communicated with the air inlet branch pipe, and the other end of the large-caliber valve is communicated with the buffer chamber.

Among the above-mentioned technical scheme be provided with the buffer board in the buffer chamber, the buffer board contain a vertical buffer board and one with the slope buffer board that vertical buffer board links to each other all be provided with the buffering strip that a plurality of ranks of dislocation were arranged between on vertical buffer board and the slope buffer board, the one end that the buffer board was equipped with vertical buffer board is close to the well box, the one end that the buffer board was equipped with the slope buffer board is close to the ash bucket.

In the technical scheme, the ash cleaner comprises a rotatable rotating ring arranged on an opening at the small end of the ash hopper, and a plurality of ash cleaning strips which are connected with the rotating ring and arranged in the ash hopper.

In the technical scheme, the rotating ring comprises an inner ring and an outer ring, a first groove for mounting a small-end opening of the ash bucket is reserved between the inner ring and the outer ring, an annular slide bar is further arranged on the outer wall of the inner ring, an annular sliding groove matched with the annular slide bar is arranged on the inner wall of the small-end opening of the ash bucket, and the annular slide bar is rotatably mounted in the annular sliding groove;

one end of each ash removing strip is correspondingly connected and fixed with the outer wall of the inner ring of the rotating ring, and the other end of each ash removing strip clings to the inner wall of the ash bucket and extends upwards.

In the technical scheme, a conical gear sleeve is welded on the outer wall of the outer ring, the conical gear sleeve is connected with a conical gear in a meshing manner, and the conical gear is connected with a power source through a transmission rod; and the outer wall of the outer ring is also fixedly provided with a plurality of manual operation cross rods.

In the technical scheme, the pipe diameter of the air inlet branch pipe is gradually increased from one end close to the large-diameter valve to one end far away from the large-diameter valve.

In the technical scheme, the filter bag assembly comprises a filter bag and a bag cage, the filter bag is sleeved in the bag cage and fixed on the pattern plate together with the bag cage, and the injection pipeline extends into the filter bag.

In the technical scheme, the pulse dust collector comprises an air bag and a pulse valve, the air bag and the pulse valve are both fixed on the outer top surface of the upper box body, and the air bag is communicated with the pulse valve through a blowing pipeline.

In the technical scheme, the air inlet guide main pipe and the collecting flue are both in a wedge-shaped structure and are in wedge-shaped fit with each other;

the heavy-calibre mouth of pipe of air inlet water conservancy diversion house steward is the air intake of air inlet water conservancy diversion house steward, just the air intake of air inlet water conservancy diversion house steward communicates with the equipment that carries the dirt air current, the heavy-calibre mouth of pipe of set flue is the air outlet of set flue, just the air outlet of set flue communicates with the outside pipeline of carrying the net gas, the air intake of air inlet water conservancy diversion house steward and the air outlet of set flue are reverse setting.

Among the above-mentioned technical scheme, circulation spraying device in advance contains mixing chamber, injection pipe, motorised valve, venturi and spraying pipe in advance, the mixing chamber contains one and advances grey mouthful, an ash hole, spraying advances whitewashed mouth in advance, a spraying goes out the powder mouth in advance, the ash hole that advances of mixing chamber with the unloading valve intercommunication, the ash hole and the outside ash collecting device intercommunication of mixing chamber, the spraying advance of mixing chamber advance whitewashed mouth with the injection pipe intercommunication, injection pipe and spraying powder feed system intercommunication in advance, the spraying play whitewashed mouth in advance of mixing chamber with venturi intercommunication, venturi and spraying pipe in advance intercommunication, spraying pipe in advance with the cushion chamber intercommunication, the motorised valve sets up on the injection pipe.

The utility model provides a pair of work principle of bag combined type pulse sack cleaner is prevented sticking with paste in circulation greatly does:

when the external dust flow conveying equipment conveys a dust-carrying airflow which does not contain working condition powder such as water vapor, oil mist and the like:

firstly, the dust-carrying air flow is conveyed to the air inlet branch pipe by the air inlet guide header pipe in the pulse bag dust remover through external dust flow conveying equipment, and then conveyed to the dust hopper by the air inlet branch pipe, and enters the dust-carrying air flow in the dust hopper;

the dust-carrying airflow entering the dust hopper drops large-particle dust into the dust hopper under the action of mutual collision and gravity, and then drops into a dust collecting device below from the dust hopper; the residual substances in the airflow can continuously enter the middle box body through the buffer chamber, enter the air purifying chamber of the upper box body after being subjected to dust removal treatment by the filter bag assembly in the middle box body, enter the collection flue through the air purifying chamber and finally be conveyed to an external clean air conveying pipeline through the air outlet of the collection flue;

in the dust removal process, when more and more dust is collected by the filter bag assembly in the middle box body, in order to ensure the normal work of the dust remover, the dust accumulated in the filter bag assembly needs to be processed in time; when in dust removal, firstly, a pulse valve of a pulse dust collector positioned at the top of an upper box body is opened, compressed gas in an air bag of the pulse dust collector enters a filter bag of a filter bag assembly through a blowing pipeline, so that the filter bag is instantly and rapidly expanded, dust accumulated on the surface of the filter bag falls off, and then the pulse valve of the pulse dust collector is closed, so that the filter bag is recovered to an initial state;

in the dust removing process, when dust in the dust hopper is accumulated more, the dust remover positioned at the small port of the dust hopper needs to be opened for working, and meanwhile, a power source connected with dust removal is opened, so that the dust removing strip of the dust remover positioned in the dust hopper rotates to clean hardened dust accumulated on the inner wall of the dust hopper, the hardened dust slides to the dust remover below along the inner wall of the dust hopper, then falls into a dust discharging valve below through the dust remover, and finally falls into an external dust collecting device;

(II) when the external dust flow conveying equipment conveys dust-carrying airflow containing working condition powder such as water vapor, oil mist and the like:

at first need be located the motorised valve of unloading grey valve below circulation in advance spraying coating device and open, will carry in advance spraying powder through circulation in advance spraying device by outside spraying powder supply system in advance the utility model discloses in the pulse bag dust collector, let in the ash bucket, the buffer board, the inner wall of well box and last box and the one deck powder of spraying in advance of filter bag subassembly surface, prevent that steam in the dirt band dust air current, the surface of oil mist etc. adhesion to ash bucket, the buffer board, well box, last box inner wall or filter bag, cause the problem of sticking with paste the bag, then close the motorised valve in the circulation spraying coating in advance, carry out subsequent dust removal processing according to the step of above-mentioned (one) again.

Compared with the prior art, the utility model discloses an advantage and beneficial effect are:

1. compared with the side wall air inlet mode of the ash bucket and the side wall air inlet mode of the middle box body, the utility model enlarges the ash inlet of the ash bucket, so that the air inlet branch pipe is communicated with the ash inlet of the ash bucket, the bent pipe is reduced, the airflow with dust can vertically enter the ash bucket, and the abrasion and the dust deposition at the bent pipe of the air inlet branch pipe are prevented;

2. the bent pipes in the air inlet branch pipes are reduced, so that the air inlet flow of the air inlet branch pipes erected outside the box body is shortened, and the air inlet resistance of the whole equipment is reduced;

3. after the dust-carrying airflow enters the dust hopper, the dust hopper has larger utilization space due to vertical air intake compared with the prior air intake of the side wall, and meanwhile, under the setting of uniform air distribution of the buffer plate, the dust-carrying airflow can uniformly enter each filter cloth, so that the condition that the air quantity distribution of the filtering area is uneven, the local air speed at the lower end of the filter bag is too large, and the individual filter bag is washed by the dust-carrying airflow to cause damage is prevented.

4. The air inlet resistance is reduced by changing the structure of the air inlet collecting flue of the conventional pulse bag-type dust collector and changing the structure of the ash bucket, the phenomena of local abrasion, ash accumulation and uneven bin load are avoided, and the space utilization rate of the ash bucket is effectively increased;

5. through the circulation spraying device in advance that adds, effectively solved the sack cleaner and in the dirt band dust air current that contains operating mode powder such as steam, oil mist and handle the problem of sticking with paste the bag that appears, not only guarantee the dust remover and effectively operate, still increase the life of filter bag simultaneously.

Drawings

FIG. 1 is a schematic vertical view of a single large-flow anti-pasting bag composite pulse bag-type dust collector;

FIG. 2 is a schematic left elevational view of FIG. 1;

FIG. 3 is a schematic top view of FIG. 1;

FIG. 4 is a schematic view of the internal structure of a single large-flow anti-stick bag composite pulse bag-type dust collector;

FIG. 5 is an enlarged view at node M of FIG. 4;

FIG. 6 is a schematic structural view of the buffer plate shown in FIG. 4;

FIG. 7 is a schematic view of the ash remover of FIG. 4;

FIG. 8 is a schematic view of the connection structure of the inner ring and the annular slide bar in FIG. 4;

FIG. 9 is a schematic view of a connection structure of the collecting flue and the air intake guide header;

FIG. 10 is a schematic view of a vertical surface of a large circulation anti-stick bag composite pulse bag dust collector when a plurality of bag-type dust collectors are combined;

FIG. 11 is a schematic left elevational view of FIG. 10;

FIG. 12 is a top schematic view of FIG. 10;

description of reference numerals: 1. an upper box body; 1.1, an air purifying chamber; 2. a pattern plate; 3. a middle box body; 3.1, a filter bag component; 4. a buffer chamber; 4.1, a buffer plate; 4.11, a vertical buffer plate; 4012. inclining the buffer plate; 4.13, buffer strips; 4.14, a void; 5. an ash hopper; 6. a blowing pipeline; 7. collecting flues; 7.1, an air outlet; 8. an air inlet diversion header pipe; 8.1, an air inlet; 9. an air inlet branch pipe; 10. a large diameter valve; 11. a support frame; 12. a pulse dust collector; 12.1, a pulse valve; 12.2, air bags; 13. a soot cleaner; 13.2, ash removal strips; 13.1, rotating the ring; 13.1a, inner ring; 13.1b, outer ring; 13.1c, a first groove; 13.1d, annular slide bar; 13.1e, manually operating the cross bar.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.

Example 1: as shown in fig. 1 to 9, the through anti-burnt bag composite pulse bag-type dust collector provided for the mass flow of the present invention is a single embodiment; in this embodiment: the single-body combined type pulse bag-type dust collector comprises an upper box body 1, a middle box body 3, a flower plate 2, an ash bucket 5, a supporting frame 11, a collecting flue 7, an air inlet guide header 8, an air inlet branch pipe 9, a pulse dust collector 12, an ash cleaner 13, an ash discharge valve 14 and a circulating pre-spraying device 15, wherein the upper box body 1 is arranged at the upper part of the flower plate 2, the flower plate 2 is arranged at the upper part of the middle box body 3, the ash bucket 5 is arranged at the lower part of the middle box body 3 and supported on the supporting frame 11, the collecting flue 7, the air inlet guide header 8 and the air inlet branch pipe 9 are all arranged at one side part of the middle box body 3, and the pulse dust collector 12 is arranged at the top part of the upper box body 1; as shown in fig. 4, an air purifying chamber 1.1 is arranged in the upper box 1, the air purifying chamber 1.1 is communicated with a collecting flue 7, an air inlet guide header pipe 8 is communicated with a buffer chamber 4 arranged at a large opening end (ash inlet end) of an ash bucket 5 through an air inlet branch pipe 9, the buffer chamber 4 is respectively communicated with the middle box 3 and the ash bucket 5, as shown in fig. 4 and 5, an ash cleaner 13 is arranged at a small opening end (ash outlet end) of the ash bucket 5, an ash discharge valve 14 is arranged below the ash cleaner 13, a circulating pre-spraying device 15 is arranged below the ash discharge valve 14, and the circulating pre-spraying device 15 is respectively communicated with the ash discharge valve 14 and the buffer chamber 4; as shown in fig. 4, a plurality of filter bag modules 3.1 are further arranged in the middle box body 3, and each filter bag module 3.1 is communicated with the pulse dust collector 12 through the blowing pipeline 6; a large-caliber valve 10 is further arranged at the communication position of the air inlet branch pipe 9 and the buffer chamber 4, one end of the large-caliber valve 10 is communicated with the air inlet branch pipe 9, and the other end of the large-caliber valve is communicated with the buffer chamber 4.

In this embodiment, as shown in fig. 4 and fig. 6, a buffer plate 4.1 is disposed in the buffer chamber 4, the buffer plate 4.1 includes a vertical buffer plate 41.11 and an inclined buffer plate 4.12 connected to the vertical buffer plate 4.11, wherein one end of the buffer plate 4.1, which is provided with the vertical buffer plate 4.11, is close to the middle box 3, and one end of the buffer plate 4.1, which is provided with the inclined buffer plate 4.12, is close to the ash bucket 5; a plurality of buffer strips 4.13 which are arranged in a staggered mode are arranged on the vertical buffer plate 4.11 and the inclined buffer plate 4.12, and a gap 4.14 which can allow a dust-carrying airflow to pass through is reserved between every two adjacent buffer strips 4.13 in each row of buffer strips. The buffer strips 4.13 on the buffer plate 4.1 can block dust in the dust-laden airflow and enable the dust to fall into the dust hopper 5 along a gap 4.14 reserved between two adjacent buffer strips 4.13.

In the present embodiment, as shown in fig. 7 and 8, the ash remover 13 comprises a rotatable rotating ring 13.1 arranged on the small end opening of the ash bucket 5, and a plurality of ash removing strips 13.2 connected with the rotating ring 13.1 and arranged in the ash bucket 5; the ash removing strips 13.2 are helpful for cleaning hardened dust condensed on the inner wall of the ash hopper 5 under the rotating action of the rotating ring 13.1.

Specifically, in this embodiment, the rotating ring 13.1 includes an inner ring 13.1a and an outer ring 13.1b, a groove 13.1c for installing the small end opening of the ash bucket 5 is reserved between the inner ring 13.1a and the outer ring 13.1b, an annular sliding strip 13.1d is further disposed on the outer wall of the inner ring 13.1a, an annular sliding groove (not shown in the figure) matched with the annular sliding strip 13.1d is disposed on the inner wall of the small end opening of the ash bucket 5, and the annular sliding strip 13.1d is rotatably installed in the annular sliding groove.

Specifically, in this embodiment, one end of each ash removal strip 13.2 is correspondingly connected and fixed with the outer wall of the inner ring 13.1a of the rotating ring 13.1, and the other end of each ash removal strip is tightly attached to the inner wall of the ash bucket 5 and extends upwards.

Specifically, in this embodiment, a bevel gear sleeve (not shown) is welded to the outer wall of the outer ring 13.1b, and the bevel gear sleeve is engaged with a bevel gear (not shown), and the bevel gear is connected with a power source through a transmission rod; when ash needs to be scraped by the ash removing strips 13.2, the power source is started, the outer ring 13.1b of the rotating ring 13.1 is driven to rotate by the gear, the inner ring 13.1a is driven to rotate by the outer ring 13.1b of the rotating ring 13.1, the ash removing strips 13.2 rotate in the ash bucket 5 under the rotating action of the inner ring 13.1a, hardened ash accumulated on the inner wall of the ash bucket 5 is scraped, and finally the scraped ash falls into the ash discharging valve 14 below the lower small port of the ash bucket 5 along the inner wall of the ash bucket 5.

Specifically, in this embodiment, the outer wall of the outer ring 13.1b is further fixed with a plurality of manual operation cross bars 13.1e, and when power is off or the amount of hardened dust in the dust hopper 5 is small, the rotary ring 13.1 can be rotated by twisting the manual operation cross bars 13.1e, so as to perform dust cleaning operation on the dust hopper 5.

Specifically, in this embodiment, the pipe diameter of the air inlet branch pipe 9 gradually increases from the end close to the large-diameter valve 10 to the end far away from the large-diameter valve 10; the valve ports at the two ends of the large-diameter valve 10 are both flared, so that the dust-carrying airflow can conveniently enter the air inlet branch pipe 9 and enter the ash bucket 5 after passing through the large-diameter valve 10, the air inlet speed of the whole air inlet branch pipe 9 is increased, and the dust removal efficiency of the whole dust remover is improved.

Specifically, in this embodiment, each filter bag module 3.1 includes a filter bag and a bag cage, each filter bag is sleeved in one bag cage and fixed on the card 2 together with the bag cage, and the injection pipeline 6 extends into each filter bag.

Specifically, in the embodiment, as shown in fig. 2, the pulse dust collector 12 includes an air bag 12.2 and a pulse valve 12.1, the air bag 12.2 and the pulse valve 12.1 are both fixed on the outer top surface of the upper box body 1, and the air bag 12.2 and the pulse valve 12.1 are communicated through the blowing pipe 6; in use, the pulse valve 12.1 is opened to allow gas in the air bag 12.2 to enter each filter bag through the blowing pipe 6, so that the filter bag moves back and forth between expansion and reverse acceleration, and dust accumulated on the surface is flicked off.

Specifically, in this embodiment, as shown in fig. 9, the air inlet diversion header pipe 8 and the collection flue 7 are both in a wedge-shaped structure and are in wedge-shaped fit with each other, wherein a large-caliber pipe orifice of the air inlet diversion header pipe 8 is an air inlet 8.1 of the air inlet diversion header pipe 8, the air inlet 8.1 of the air inlet diversion header pipe 8 is communicated with an external dust flow conveying device for conveying dust airflow, a large-caliber pipe orifice of the collection flue 7 is an air outlet 7.1 of the collection flue 7, an air outlet 7.1 of the collection flue 7 is communicated with an external clean air conveying pipeline for conveying purified airflow, and the air inlet 8.1 of the air inlet diversion header pipe 8 and the air outlet 7.1 of the collection flue 7 are arranged in opposite directions;

specifically, in this embodiment, as shown in fig. 5, the circulating pre-spraying device 15 includes a mixing chamber 15.1, an injection pipe 15.2, an electric valve 15.3, a venturi tube 15.4 and a pre-spraying pipe 15.5, the mixing chamber 15.1 includes an ash inlet, an ash outlet, a pre-spraying powder inlet and a pre-spraying powder outlet, the ash inlet of the mixing chamber 15.1 is communicated with the ash discharge valve 14, the ash outlet of the mixing chamber 15.1 is communicated with an external ash collecting device, the pre-spraying powder inlet of the mixing chamber 15.1 is communicated with the injection pipe 15.2, the injection pipe 15.2 is communicated with a pre-spraying powder supply system, the pre-spraying powder outlet of the mixing chamber 15.1 is communicated with the venturi tube 15.4, the venturi tube 15.4 is communicated with the pre-spraying pipe 15.5, the pre-spraying pipe 15.5 is communicated with the buffer chamber 4, and the electric valve 15.3 is disposed on the injection pipe 15.2.

Example 2: in actual installation, the dust collectors are usually arranged in groups, that is, a dust collection system is formed by a plurality of dust collectors; as shown in fig. 10 to 12, the embodiment of the composite pulse bag dust collector with through anti-paste bags provided for the mass flow of the present invention is a plurality of combined embodiments.

The utility model provides a pair of work principle of bag combined type pulse sack cleaner is prevented sticking with paste in circulation greatly does:

when the external dust flow conveying equipment conveys a dust-carrying airflow which does not contain working condition powder such as water vapor, oil mist and the like:

firstly, the dust-carrying air flow is conveyed to an air inlet branch pipe 9 from an air inlet guide header pipe 8 in the pulse bag dust remover, then conveyed to an ash bucket 5 from the air inlet branch pipe 9 and enters the dust-carrying air flow in the ash bucket 5 through external dust flow conveying equipment;

wherein, the large-particle dust in the dust-carrying airflow entering the dust hopper 5 falls into the dust hopper 5 under the action of mutual collision and gravity, and then falls into the dust collecting device below through the dust hopper 5; the residual substances in the air flow can continuously enter the middle box body 3 through the buffer chamber 4, enter the air purifying chamber 1.1 of the upper box body 1 after being subjected to dust removal treatment by the filter bag assembly 3.1 in the middle box body 3, enter the collection flue 7 through the air purifying chamber 1.1 and finally be conveyed to an external clean air conveying pipeline through the air outlet 7.1 of the collection flue 7;

in the dust removal process, when more and more dust is collected by the filter bag assembly 3.1 in the middle box body 3, in order to ensure the normal work of the dust remover, the dust accumulated in the filter bag assembly 3.1 needs to be processed in time; when in ash removal, firstly, a pulse valve 12.1 of a pulse dust collector 12 positioned at the top of an upper box body 1 is opened, compressed gas in an air bag 12.2 of the pulse dust collector 12 enters a filter bag of a filter bag component 3.1 through a blowing pipeline 6, so that the filter bag is instantly expanded rapidly, dust attached to the surface of the filter bag falls off, and then the pulse valve 12.1 of the pulse dust collector 12 is closed, so that the filter bag is recovered to an initial state;

in the dust removing process, when dust in the dust hopper 5 is accumulated more, the ash remover 13 positioned at the small port of the dust hopper 5 needs to be opened for working, and meanwhile, a power source connected with the ash remover 13 is opened, so that the ash removing strip 13.2 of the ash remover 13 positioned in the dust hopper 5 rotates to clean hardened dust accumulated on the inner wall of the dust hopper 5, the hardened dust slides to the ash remover 13 below along the inner wall of the dust hopper 5, falls into the dust discharging valve 14 below through the ash remover 13, and finally falls into an external dust collecting device;

(II) when the external dust flow conveying equipment conveys dust-carrying airflow containing working condition powder such as water vapor, oil mist and the like:

at first need be located the motorised valve 15.3 of circulation in the spraying device 15 in advance of unloading valve 14 below and open, will carry in advance the spraying powder through circulation spraying device 15 by outside spraying powder feed system in advance the utility model discloses in the pulse bag dust collector, let ash bucket 5, surge chamber 4, the inner wall and buffer board 4.1 and the filter bag subassembly 3.1 surface spraying upper strata of well box 3 and last box 1 powder in advance, prevent that steam in the dirt band dirt air current, oil mist etc. from gluing to ash bucket 5, surge chamber 4, well box 3, go up box 1 inner wall and buffer board 4.1 and filter bag subassembly 3.1 surface, cause the problem of sticking with paste the bag, then close motorised valve 15.3 in the circulation spraying device 15 in advance, then carry out subsequent dust removal processing according to the step of (one) above-mentioned.

Finally, the above is only the embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The big circulation anti-bag-sticking composite pulse bag-type dust collector comprises an upper box body (1), a middle box body (3), a pattern plate (2), an ash bucket (5), a support frame (11), a collection flue (7), an air inlet guide header pipe (8), air inlet branch pipes (9) and a pulse dust collector (12), wherein the upper box body (1) is arranged on the upper portion of the pattern plate (2), the pattern plate (2) is arranged on the upper portion of the middle box body (3), the ash bucket (5) is arranged on the lower portion of the middle box body (3) and supported on the support frame (11), the collection flue (7), the air inlet guide header pipe (8) and the air inlet branch pipes (9) are all arranged on one side portion of the middle box body (3), and the pulse dust collector (12) is arranged at the top of the upper box body (1); the method is characterized in that:

an air purifying chamber (1.1) is arranged in the upper box body (1), the air purifying chamber (1.1) is communicated with the collection flue (7), the air inlet guide main pipe (8) is communicated with a buffer chamber (4) arranged at the large opening end of the ash bucket (5) through an air inlet branch pipe (9), the buffer chamber (4) is also communicated with the middle box body (3) and the ash bucket (5) respectively, an ash cleaner (13) is arranged at the opening of the small end of the ash bucket (5), an ash discharging valve (14) is arranged below the ash cleaner (13), a circulating pre-spraying device (15) is arranged below the ash discharging valve (14), and the circulating pre-spraying device (15) is communicated with the ash discharging valve (14) and the buffer chamber (4) respectively;

a plurality of filter bag assemblies (3.1) are also arranged in the middle box body (3), and the pulse dust collector (12) is communicated with the filter bag assemblies (3.1) arranged in the middle box body (3) through a blowing pipeline (6);

the air inlet branch pipe (9) is communicated with the buffer chamber (4) and is also provided with a large-caliber valve (10), one end of the large-caliber valve (10) is communicated with the air inlet branch pipe (9), and the other end of the large-caliber valve is communicated with the buffer chamber (4).

2. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: be provided with buffer board (4.1) in buffer chamber (4), buffer board (4.1) contain a vertical buffer board (4.11) and one with slope buffer board (4.12) that vertical buffer board (4.11) link to each other all be provided with buffer strip (4.13) that a plurality of dislocation phase were arranged on vertical buffer board (4.11) and slope buffer board (4.12), the one end that buffer board (4.1) were equipped with vertical buffer board (4.11) is close to well box (3), the one end that buffer board (4.1) were equipped with slope buffer board (4.12) is close to ash bucket (5).

3. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: the ash cleaner (13) comprises a rotatable rotating ring (13.1) arranged on the small end opening of the ash bucket (5), and a plurality of ash cleaning strips (13.2) which are connected with the rotating ring (13.1) and arranged in the ash bucket (5).

4. The big flow anti-paste bag composite pulse bag dust collector of claim 3, wherein: the rotating ring (13.1) comprises an inner ring (13.1a) and an outer ring (13.1b), a groove I (13.c) for mounting a small end opening of the ash bucket (5) is reserved between the inner ring (13.1a) and the outer ring (13.1b), an annular sliding strip (13.1d) is further arranged on the outer wall of the inner ring (13.1a), an annular sliding groove matched with the annular sliding strip (13.1d) is arranged on the inner wall of the small end opening of the ash bucket (5), and the annular sliding strip (13.1d) can be rotatably mounted in the annular sliding groove;

one end of each ash removing strip (13.2) is correspondingly connected and fixed with the outer wall of the inner ring (13.1a) of the rotating ring (13.1), and the other end of each ash removing strip clings to the inner wall of the ash bucket (5) and extends upwards.

5. The big flow anti-paste bag composite pulse bag dust collector of claim 4, wherein: a conical gear sleeve is welded on the outer wall of the outer ring (13.1b), a conical gear is meshed and connected with the conical gear, and the conical gear is connected with a power source through a transmission rod; and a plurality of manual operation cross bars (13.1e) are also fixed on the outer wall of the outer ring (13.1 b).

6. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: the pipe diameter of the air inlet branch pipe (9) is gradually increased from one end close to the large-caliber valve (10) to one end far away from the large-caliber valve (10).

7. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: the filter bag assembly (3.1) comprises a filter bag and a bag cage, the filter bag is sleeved in the bag cage and fixed on the pattern plate (2) together with the bag cage, and the injection pipeline (6) extends into the filter bag.

8. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: the pulse dust collector (12) comprises an air bag (12.2) and a pulse valve (12.1), wherein the air bag (12.2) and the pulse valve (12.1) are both fixed on the outer top surface of the upper box body (1), and the air bag (12.2) and the pulse valve (12.1) are communicated through a blowing pipeline (6).

9. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: the air inlet guide main pipe (8) and the collecting flue (7) are both in a wedge-shaped structure and are in wedge-shaped fit with each other; wherein, the heavy-calibre mouth of pipe of air inlet water conservancy diversion house steward (8) is air intake (8.1) of air inlet water conservancy diversion house steward (8), just air intake (8.1) of air inlet water conservancy diversion house steward (8) and the equipment intercommunication of outside conveyer belt dirt air current, the heavy-calibre mouth of pipe of collection flue (7) is air outlet (7.1) of collection flue (7), just air outlet (7.1) of collection flue (7) and the pipeline intercommunication of outside transport net gas, air intake (8.1) of air inlet water conservancy diversion house steward (8) and air outlet (7.1) of collection flue (7) are reverse setting.

10. The big flow anti-paste bag composite pulse bag dust collector of claim 1, wherein: the circulating pre-spraying device (15) comprises a mixing chamber (15.1), an injection pipe (15.2), an electric valve (15.3), a Venturi tube (15.4) and a pre-spraying pipe (15.5), the mixing chamber (15.1) comprises an ash inlet, an ash outlet, a pre-spraying powder inlet and a pre-spraying powder outlet, an ash inlet of the mixing chamber (15.1) is communicated with the ash discharge valve (14), an ash outlet of the mixing chamber (15.1) is communicated with an external dust collecting device, the pre-spraying powder inlet of the mixing chamber (15.1) is communicated with the spraying pipe (15.2), the injection pipe (15.2) is communicated with a pre-spraying powder supply system, a pre-spraying powder outlet of the mixing chamber (15.1) is communicated with the Venturi tube (15.4), the Venturi tube (15.4) is communicated with a pre-spraying pipe (15.5), the pre-spraying pipe (15.5) is communicated with the buffer chamber (4), and the electric valve (15.3) is arranged on the injection pipe (15.2).

Images