CN218794614U

CN218794614U - Bag-type dust collector

Info

Publication number: CN218794614U
Application number: CN202320164823.2U
Authority: CN
Inventors: 丁冲
Original assignee: Shandong Jinshanbao Environmental Protection Equipment Co ltd
Current assignee: Shandong Jinshanbao Environmental Protection Equipment Co ltd
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-04-07
Anticipated expiration: 2033-02-02

Abstract

The utility model provides a sack cleaner, it has solved the complicated or multimachine antithetical couplet of current sack cleaner structure and has used with high-cost technical problem, and it includes box, sack and ash falling bucket, and the inside of box is equipped with horizontal wall, makes it divide into box and lower box. The partition is provided with a through hole and is provided with a cloth bag, and the main body of the cloth bag is positioned in the lower box body. An air inlet pipe is arranged on the lower box body, and a choke structure is arranged at the inlet. An air outlet is arranged on the upper box body, and an air outlet pipeline is arranged on the upper box body. The utility model discloses simple structure through lower part box air intake department increase choke structure in the sack cleaner, increases the preliminary interception rate of large granule dust to extension sack life and maintenance cycle, but wide application in dust removal technical field.

Description

Bag-type dust collector

Technical Field

The utility model relates to a dust removal technical field, in particular to sack cleaner.

Background

The bag-type dust collector is a device for filtering dust of flue gas, and is suitable for filtering fine and dry dust. The general sack adopts weaving filter cloth or non-woven felt to make, utilizes the filtering action of fiber fabric to filter dirty gas, and after dirty gas got into the dust remover, the dust that granule is big, the proportion is big fell into the ash bucket because the effect of gravity subsides, and the gas that contains the less fine dust is filtered when passing the sack, makes the flue gas get handled.

However, the large-particle dust of the existing bag-type dust collector can not fall down directly, but a considerable amount of dust particles directly impact the bag along with the air flow, so that the bag is blocked too fast, and the service life and the cleaning period are influenced.

In order to solve the above problems, a cyclone dust collector is additionally arranged at the upstream of a bag-type dust collector, so that large-particle dust is separated in advance, or as disclosed in chinese patent CN213049814U, an integrated machine for fire extinguishing and dust removing of tail gas of a biomass particle combustion furnace comprises a machine body, an ash storage hopper, a dust removal bag, a machine frame, an outer cylinder, an inner cylinder, a gas purification box body and an induced draft fan, wherein a separation cavity is formed between the outer cylinder and the inner cylinder, the top of the separation cavity is sealed, the bottom of the separation cavity is communicated with the inside of the ash storage hopper, a spiral guide plate is arranged in the separation cavity in a matching manner, an air inlet pipe communicated to the separation cavity is arranged above the outer cylinder, an air inlet at the bottom of the inner cylinder is communicated with the inside of the ash storage hopper, the dust removal bag is arranged in the inner cylinder, a porous plate is arranged at the top of the inner cylinder, air outlets at the top of the dust removal bag are correspondingly connected with circular holes on the porous plate one to one by one, the gas purification box body, an air suction pipe of the induced draft fan is communicated to the gas purification box body, and a blowing assembly is arranged on the gas purification box body. The technical scheme adds a complex spiral structure in the separate cavity, and actually structurally combines the cyclone dust collector and the bag-type dust collector to integrate into one device; its occupation space reduces, and with two equipment combination uses the dust removal effect who plays and is equivalent, but the structure is also more complicated, and the cost is also high, does not utilize batch production or later maintenance/improvement.

In summary, there is a need for an improvement to the existing bag-type dust collector.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, with low costs sack cleaner for solve the not enough of above-mentioned background art.

Therefore, the utility model provides a bag-type dust collector, which comprises a box body, a bag and an ash hopper; a transverse partition is arranged inside the box body to divide the box body into an upper box body and a lower box body; the partition is provided with at least one through hole and is provided with the cloth bag; the main body of the cloth bag is positioned in the lower box body;

an air inlet pipe is arranged on the lower box body, and a wind blocking structure is arranged at an inlet; the lower part of the lower box body is provided with at least one ash falling hopper in parallel;

an air outlet is arranged on the upper box body, and an air outlet pipeline is arranged on the upper box body.

Preferably, the wind blocking structure is positioned on the inner side of the lower box body and comprises an air inlet grille and a wind shield; the air inlet grille is arranged at the air inlet and is provided with a guide plate which inclines downwards; the wind shield is vertically arranged on the partition, is positioned on the air outlet side of the air inlet grille and is used for changing the direction of air flow; the downside of deep bead is open structure, will the intake pipe with the inside intercommunication of box down.

Preferably, a butterfly valve is connected in series on the air outlet pipeline.

Preferably, the lower box body is further provided with a direct exhaust flue and an electric flashboard.

Preferably, the lower box body is arranged on a lower base, the lower base is of a frame structure, and a space is reserved between a discharge port of the ash falling hopper and an installation surface of the lower base; and a valve is also arranged at the discharge hole of the ash falling hopper.

Preferably, a cloth bag backflushing cleaning system is installed on the box body.

Preferably, the top surface of the upper box body is provided with a plurality of openings and is provided with a detachable sealing cover.

Preferably, a guardrail is arranged at the edge of the top surface of the upper box body or laterally.

Preferably, a heat insulation layer is attached to the outer side of the box body and/or the ash falling hopper.

The utility model provides a sack cleaner has following beneficial effect:

the utility model has the advantages that the whole structure is simple it is single, through lower part box air intake department increase choke structure in the sack cleaner, realize reducing the effect of velocity of flow, can make the large granule whereabouts, increase the large granule dust interception rate in advance to extension sack life and maintenance cycle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

the labels in the figure are: 1. the device comprises an upper box body, a lower base, a ash hopper, an air inlet pipe, an air inlet grille, a wind shield, a guardrail and an air outlet pipeline, wherein the upper box body is 2, the lower box body is 3, the lower base is 4, the ash hopper is 5, the air inlet pipe is 6, the air inlet grille is 7, the wind shield is 8, and the air outlet pipeline is 9.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used were, unless otherwise specified, conventional commercially available products.

The utility model provides a bag-type dust collector, as shown in figure 1, mainly comprises a box body, a bag and an ash falling hopper 4. The box body is mainly of a square closed structure made of metal materials; preferably, the whole box body is supported by the lower base 3 and is of a metal frame structure, so that a certain distance can be kept between a discharge port of the ash falling hopper 4 and the bottom surface, and the ash falling hopper is used for installing dust conveying equipment.

A transverse partition is additionally arranged at the position close to the middle of the box body, so that the box body is divided into an upper box body 1 and a lower box body 2. A plurality of through holes are arranged on the partition in parallel or in a close-packed manner, a cloth bag for dust removal is arranged below each hole, and the main body of the cloth bag is positioned in the lower box body 2.

The upper side position of lower box 2 processes the round mouth as the import of flue gas to be equipped with the intake pipe 5 of taking the flange in the outside, be used for external connection flue. Correspondingly, a choke structure is arranged on the inner side of the inlet; preferably, the choke structure comprises an air intake grille 6 and a wind deflector 7. The air inlet grille is arranged at an air inlet, and obliquely downward guide plates are arranged from top to bottom, and particularly as shown in the figure, the air inlet grille has the function of once blocking the movement of large particles intercepted by airflow and allowing the large particles to fall; and then the wind shield 7 is arranged at a certain distance, the upper end of the wind shield is vertically arranged on the partition, and the two sides of the wind shield are contacted with or fixed on the box body and are used for changing the direction of the airflow for the second time to block the airflow to intercept the movement of large particles and enable the large particles to fall. By two interception, the large particle dust will basically move downwards and fall into the dust falling hopper 4. The lower end of the wind shield 7 is not in contact with the box body and is kept in an open structure, and the air inlet pipe 5 is communicated with the interior of the lower box body 2, so that air flow can normally lead to the position of the cloth bag.

Two ash falling hoppers 4 are arranged in parallel at the lower part of the lower box body 2, and an electric control valve is arranged at the discharge port and used for controlling the discharge of dust.

The upper box body 1 is provided with an air outlet and is provided with an air outlet pipeline 9, and the flue gas enters the upper box body 1 after being filtered by the cloth bag in the lower box body 2 and then enters the next-stage treatment process through the air outlet pipeline 9; preferably, an electrically controlled butterfly valve is connected in series to the air outlet pipe 9, a direct exhaust flue (not shown) is further provided on the lower box 2, and an electric shutter is installed at the connection. The design can replace the original bypass pipeline, simplify the internal structure, automatically close the butterfly valve through signal setting of the system, open the electric flashboard of the direct exhaust flue, and directly discharge the tail gas into the direct exhaust flue.

Preferably, the box body is further provided with a cloth bag backwashing system, the existing pulse type cloth bag backwashing system can be selected, high-pressure gas is introduced into the spray heads through the air introducing pipe on the upper box body 1, a spray head is arranged at the upper opening of each cloth bag, and the spray cloth bags are blown along the dust removing airflow in the reverse direction through pulse type gas supply, so that dust attached to the outer sides of the cloth bags is blown off and discharged from the ash falling hopper 4.

Preferably, the top surface of the upper box body 1 is provided with three openings in parallel, and a detachable sealing cover is arranged at the opening, so that a maintainer can conveniently and conveniently replace a cloth bag or clean the inside of the box body. Further, install guardrail 8 at the top surface edge of last box 1, personnel can provide hand position when the top surface operation.

Preferably, in order to reduce the humidity of the dedusting gas and reduce the internal situation of condensed water generated by cooling, and prolong the service life of the cloth bag, the heat-insulating layer is attached to the outer side of the ash falling hopper 4, and the specific material can be selected from commercially available products.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A bag-type dust collector comprises a box body, a bag and a dust hopper; the box body is characterized in that a transverse partition is arranged inside the box body, and the box body is divided into an upper box body and a lower box body; the partition is provided with at least one through hole and is provided with the cloth bag; the main body of the cloth bag is positioned in the lower box body;

2. The bag-type dust collector according to claim 1, wherein the wind blocking structure is located inside the lower box body and comprises an air inlet grid and a wind blocking plate; the air inlet grille is arranged at the air inlet and is provided with a guide plate which inclines downwards; the wind shield is vertically arranged on the partition, is positioned on the air outlet side of the air inlet grille and is used for changing the direction of air flow; the downside of deep bead is open structure, will the intake pipe with the inside intercommunication of box down.

3. The bag-type dust collector according to claim 1 or 2, wherein a butterfly valve is connected in series with the gas outlet pipeline.

4. The bag-type dust collector of claim 3, wherein the lower box body is further provided with a straight flue and an electric shutter.

5. The bag-type dust collector according to claim 1, wherein the lower box is mounted on a lower base, the lower base is of a frame structure, and a gap is reserved between a discharge port of the ash hopper and a mounting surface of the lower base; and a valve is also arranged at the discharge hole of the ash falling hopper.

6. The bag-type dust collector of claim 1, wherein the box body is provided with a bag backflush cleaning system.

7. The bag-type dust collector of claim 1, wherein the top surface of the upper box body is provided with a plurality of openings and is provided with a detachable sealing cover.

8. The bag-type dust collector of claim 7, wherein a guardrail is installed at the edge or the side direction of the top surface of the upper box body.

9. The bag-type dust collector according to claim 1, wherein a heat insulating layer is attached to the outer side of the box body and/or the ash falling hopper.