CN215276248U

CN215276248U - Bag-type dust collector with negative pressure explosion-proof structure

Info

Publication number: CN215276248U
Application number: CN202121216956.7U
Authority: CN
Inventors: 林陵锋
Original assignee: Zhangzhou Lingfeng Electromechanical Equipment Co ltd
Current assignee: Zhangzhou Lingfeng Electromechanical Equipment Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-24
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a bag-type dust collector with negative pressure explosion-proof structure, which comprises a dust collector bracket, wherein the top end of the dust collector bracket is provided with a dust collecting box body, the top part of the inner side of the dust collecting box body is horizontally provided with an injection pipe, a carrying plate is clamped between the inner walls of the dust collecting box body, a dust collecting filter bag corresponding to the injection pipe is arranged in the middle of the carrying plate in an equidistance way in the vertical direction, and an ash discharge hopper communicated with the dust collecting box body is arranged between the inner sides of the dust collector bracket. High air pressure in the dust removal box body is released, and the air is purified and discharged through the filter screen plate, so that the dust removal box is green and environment-friendly.

Description

Bag-type dust collector with negative pressure explosion-proof structure

Technical Field

The utility model relates to a sack cleaner, in particular to sack cleaner with negative pressure explosion-proof structure belongs to dust collecting equipment technical field.

Background

The bag type dust collector is a dry type dust filtering device. It is suitable for trapping fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, the dust-containing gas is filtered by the filtering action of the fiber fabric, after the dust-containing gas enters the bag type dust collector, dust with large particles and large specific gravity falls into the dust hopper due to the sedimentation of the gravity, and when the gas containing fine dust passes through the filter material, the dust is blocked, so that the gas is purified. After the filter material is used for a period of time, a layer of dust is accumulated on the surface of the filter bag due to the effects of screening, collision, detention, diffusion, static electricity and the like, and the layer of dust is called as a primary layer.

The existing bag-type dust collector has the advantages that along with the accumulation of dust on the surface of a filter material, the efficiency and the resistance of the dust collector are correspondingly increased, when the pressure difference between two sides of the filter material is large, a certain amount of fine dust particles attached to the filter material can be extruded, the efficiency of the dust collector is reduced, in addition, the air volume of a dust collection system can be obviously reduced due to the overhigh resistance of a filter bag of the dust collector, and the potential safety hazard is caused if the dust is not cleaned in time, so that the internal pressure of the dust collector is overlarge. Therefore, the bag-type dust collector with the negative pressure explosion-proof structure is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sack cleaner with negative pressure explosion-proof structure, with solve the accumulation of the traditional sack cleaner that proposes in the above-mentioned background art along with the dust on the filter material surface, the efficiency and the resistance of dust remover all corresponding increase, when the pressure differential of filter material both sides is very big, can extrude the tiny dirt particle that has attached to on the filter material a bit, make dust remover efficiency descend, the too high amount of wind that can make dust pelletizing system of resistance of dust remover filter bag can show the decline in addition, if the deashing just can cause dust remover internal pressure too big in time, cause the problem of potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: a bag-type dust collector with a negative pressure explosion-proof structure comprises a dust collector support, wherein a dust collecting box body is arranged at the top end of the dust collector support, an injection pipe is horizontally arranged at the top of the inner side of the dust collecting box body, a carrying plate is clamped between the inner walls of the dust collecting box body, dust collecting filter bags corresponding to the injection pipe are arranged in the middle of the carrying plate in a penetrating way at equal intervals in the vertical direction, an ash discharge hopper communicated with the dust collecting box body is arranged between the inner sides of the dust collector support, a dust gas inlet is arranged at one side of the ash discharge hopper, an ash discharge port is arranged in the middle of the bottom end of the ash discharge hopper, a clean gas outlet is arranged at the top of one side of the dust collecting box body, a gas pressure detection port communicated with the inner part of the dust collecting box body is arranged below the clean gas outlet, a gas pressure sensor is arranged in the gas pressure detection port, a fixed seat connected with the dust collecting box body is arranged below the gas pressure sensor, a breather pipe head communicated with the dust collecting box body is horizontally arranged in the middle of the fixed seat, the improved breather pipe is characterized in that the electromagnetic valve is installed in the middle of the breather pipe head, a thread groove is formed in the outer side of the fixing base, one end of the thread groove is in threaded connection with a hollow butt joint communicated with the breather pipe head, limiting grooves are symmetrically formed in the inner wall of the hollow butt joint, and a filter screen plate is clamped between the limiting grooves.

As an optimal technical scheme of the utility model, hollow butt joint one end threaded connection has the spacing pipe that corresponds with the filter plate intermediate position.

As an optimized technical scheme of the utility model, distance between the spacing recess inner wall is greater than the length of filtering the otter board.

As an optimized technical scheme of the utility model, the electromagnetic pulse valve is installed to the outside one end of jetting pipe.

As an optimized technical scheme of the utility model, dust hopper inner wall fixedly connected with and the water conservancy diversion deep bead that the dirt gas entry corresponds.

As an optimal technical scheme of the utility model, electric connection between solenoid valve and the baroceptor, the baroceptor is MIK-PX300 model product.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a sack cleaner with negative pressure explosion-proof structure, have the sack cleaner along with the dust is at the accumulation of filter material surface, avoid the filter bag both sides to form great pressure differential, can in time effectually carry out the inside and outside atmospheric pressure balance of dust removal box when the filter bag is blockked up, stop the advantage of potential safety hazard, in specific use, compare with traditional sack cleaner, the utility model discloses an electromagnetic pulse valve release compressed air is regularly fallen into the dust hopper with the dust in the dust removal filter bag outside and is handled, when taking place the apparatus trouble, when unable in time ash removal, the inside atmospheric pressure of baroceptor real-time detection box changes, in case exceed the setting value, just can start solenoid valve switch-on breather pipe head, forms the negative pressure, releases the high atmospheric pressure in the dust removal box, and gaseous filtration otter board purification discharge, green.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure between the fixing base and the hollow butt joint of the present invention;

in the figure: 1. an electromagnetic pulse valve; 2. a blowing pipe; 3. a dust removal box body; 4. a dust removal filter bag; 5. a dust gas inlet; 6. a dust collector bracket; 7. a diversion wind shield; 8. an ash discharge port; 9. an ash discharge hopper; 10. a purified gas outlet; 11. a loading plate; 12. an air pressure detection port; 13. an air pressure sensor; 14. a fixed seat; 15. a breather tip; 16. an electromagnetic valve; 17. a thread groove; 18. a hollow butt joint; 19. a limiting groove; 20. a filter screen plate; 21. and a limiting pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a bag-type dust collector with negative pressure explosion-proof structure, which comprises a dust collector support 6, a dust collecting box body 3 is arranged at the top end of the dust collector support 6, an injection pipe 2 is horizontally arranged at the top part of the inner side of the dust collecting box body 3, a carrying plate 11 is clamped between the inner walls of the dust collecting box body 3, a dust collecting filter bag 4 corresponding to the injection pipe 2 is arranged in the middle of the carrying plate 11 in an equidistance way in the vertical direction, an ash discharge hopper 9 communicated with the dust collecting box body 3 is arranged between the inner sides of the dust collector support 6, a dust gas inlet 5 is arranged at one side of the ash discharge hopper 9, an ash discharge port 8 is arranged at the middle of the bottom end of the ash discharge hopper 9, a clean gas outlet 10 is arranged at the top part of one side of the dust collecting box body 3, an air pressure detection port 12 communicated with the inner part of the dust collecting box body 3 is arranged below the clean gas outlet 10, an air pressure sensor 13 is arranged in the air pressure detection port 12, baroceptor 13 below is equipped with the fixing base 14 that links to each other with dust removal box 3, the breather pipe head 15 with the switch-on of dust removal box 3 is worn to be equipped with by the level in the middle of fixing base 14, solenoid valve 16 is installed in the middle of breather pipe head 15, thread groove 17 has been seted up in the fixing base 14 outside, 17 one end threaded connection of thread groove has the hollow butt joint 18 with the breather pipe head 15 switch-on, spacing recess 19 has been seted up to hollow butt joint 18 inner wall symmetry, the joint has filter plate 20 between the spacing recess 19.

Preferably, one end of the hollow butt joint 18 is in threaded connection with a limiting pipe 21 corresponding to the middle of the filter screen plate 20, so as to prevent the filter screen plate 20 from being distorted and deformed after being subjected to strong air pressure.

Preferably, the distance between the inner walls of the limiting grooves 19 is greater than the length of the filter screen plate 20, so that the filter screen plate 20 can be conveniently disassembled, assembled and replaced between the limiting grooves 19.

Preferably, one end of the outside of the injection pipe 2 is provided with an electromagnetic pulse valve 1, and the electromagnetic pulse valve 1 can release compressed air to enable dust on the outer side of the dust filter bag 4 to fall into a dust hopper.

Preferably, the inner wall of the dust discharging hopper 9 is fixedly connected with a flow guide wind shield 7 corresponding to the dust inlet 5, so as to ensure that the dust-containing air flow flows to the dust removing box body 3.

Preferably, the electromagnetic valve 16 is electrically connected with the air pressure sensor 13, and the air pressure sensor 13 is a product of the MIK-PX300 type, so as to prevent dangerous conditions caused by high pressure inside the dust removing box 3.

When the bag-type dust collector with the negative pressure explosion-proof structure is used, the bag-type dust collector has the advantages that the bag-type dust collector can effectively balance the air pressure inside and outside the dust collection box body 3 in time along with the accumulation of dust on the surface of a filter material to avoid the formation of larger pressure difference on two sides of the filter bag when the filter bag is blocked, and the potential safety hazard is avoided, when certain dust is adsorbed outside the dust collection filter bag 4, compressed air is released through the electromagnetic pulse valve 1 to regularly enable the dust outside the dust collection filter bag 4 to fall into the dust discharge hopper 9 for treatment, when an instrument failure occurs and the dust cannot be removed in time, the air pressure sensor 13 detects the air pressure change inside the dust collection box body 3 in real time, once the set alarm value is exceeded, the electromagnetic valve 16 is started to be communicated with the breather pipe head 15 to form negative pressure, high air pressure in the dust collection box body 3 is released, and the air is purified and discharged through the filter screen plate 20, and the bag-type dust collector is green and environment-proof, has good use effect and is worth of being widely popularized.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bag-type dust collector with a negative-pressure explosion-proof structure comprises a dust collector support (6) and is characterized in that a dust collecting box body (3) is arranged at the top end of the dust collector support (6), an injection pipe (2) is horizontally arranged at the top of the inner side of the dust collecting box body (3), a carrying plate (11) is clamped between the inner walls of the dust collecting box body (3), dust collecting filter bags (4) corresponding to the injection pipe (2) are arranged in the middle of the carrying plate (11) in an equidistance manner in the vertical direction, an ash discharge hopper (9) communicated with the dust collecting box body (3) is arranged between the inner sides of the dust collector support (6), a dust gas inlet (5) is arranged at one side of the ash discharge hopper (9), an ash discharge port (8) is arranged in the middle of the bottom end of the ash discharge hopper (9), a clean gas outlet (10) is arranged at the top of one side of the dust collecting box body (3), and an air pressure detection port (12) communicated with the interior of the dust collecting box body (3) is arranged below the clean gas outlet (10), install baroceptor (13) in baroceptor detection mouth (12), baroceptor (13) below is equipped with fixing base (14) that link to each other with dust removal box (3), level wears to be equipped with air tube head (15) with dust removal box (3) switch-on in the middle of fixing base (14), install solenoid valve (16) in the middle of air tube head (15), thread groove (17) have been seted up in fixing base (14) outside, thread groove (17) one end threaded connection has hollow butt joint (18) with air tube head (15) switch-on, spacing recess (19) have been seted up to hollow butt joint (18) inner wall symmetry, the joint has filter plate (20) between spacing recess (19).

2. The bag-type dust collector with the negative-pressure explosion-proof structure according to claim 1, characterized in that: one end of the hollow butt joint (18) is in threaded connection with a limiting pipe (21) corresponding to the middle of the filter screen plate (20).

3. The bag-type dust collector with the negative-pressure explosion-proof structure according to claim 1, characterized in that: the distance between the inner walls of the limiting grooves (19) is greater than the length of the filter screen plate (20).

4. The bag-type dust collector with the negative-pressure explosion-proof structure according to claim 1, characterized in that: and one end of the outer part of the blowing pipe (2) is provided with an electromagnetic pulse valve (1).

5. The bag-type dust collector with the negative-pressure explosion-proof structure according to claim 1, characterized in that: and a flow guide wind shield (7) corresponding to the dust and air inlet (5) is fixedly connected to the inner wall of the dust discharging hopper (9).

6. The bag-type dust collector with the negative-pressure explosion-proof structure according to claim 1, characterized in that: the electromagnetic valve (16) is electrically connected with the air pressure sensor (13), and the air pressure sensor (13) is an MIK-PX300 type product.