CN220572934U - Single filter bag internal blowing ash removal device - Google Patents

Abstract

The utility model relates to the field of flue gas treatment, in particular to a single-filter-bag internal blowing ash removal device which comprises a blowing pipe branch pipe, wherein the blowing pipe branch pipe is communicated with a high-pressure fan, a wind shielding cap capable of sealing a filter bag port corresponding to the blowing pipe branch pipe is sleeved on the blowing pipe branch pipe, the wind shielding cap is in sliding sealing with the blowing pipe branch pipe, and the wind shielding cap is driven by a driving device to reciprocate up and down along the axis of the blowing pipe branch pipe. The use of this application can utilize cylinder control to keep off the hood and follow blow tube branch pipe and move downwards when the deashing to the filter bag, and then can make the cap that keeps out the wind seal the filter bag for the air pressure rises in the filter bag, and the filter bag inflation realizes better deashing.

Description

Single filter bag internal blowing ash removal device

Technical Field

The utility model belongs to the field of flue gas treatment, and particularly relates to an internal blowing ash removal device for a single filter bag.

Background

The current application is widely pulse blowing ash removal. The pleated filter cylinder, the pleated filter bag and the large-caliber filter bag are used, the filtering area of a single filter bag is increased, the size of a dust collector body can be reduced, the occupied area of the dust collector is reduced, and the lower filtering wind speed is easy to realize, so that the resistance is reduced, the electric energy consumption is reduced, and huge social benefits are brought, however, according to the soot blowing capability of the traditional pulse soot blower, the filtering area of the single filter bag of the filter bag is lower than 5 square meters. The air box back blowing bag type dust collector is characterized in that in one bag chamber, back blowing is carried out on all filter bags, so that the filter bags are shrunken, and after the back blowing enters the filter bags, the air speed and the air pressure are too low, and the ash cake stripping capability is weak.

Therefore, in order to increase the filtering area of a single filter bag, a blowing device capable of sufficiently blowing dust to the filter bag with an ultra-large filtering area needs to be provided.

Disclosure of Invention

The utility model provides an internal blowing ash removing device for a single filter bag, which is used for solving the defects in the prior art.

The utility model is realized by the following technical scheme:

the utility model provides a blowing ash removal device in single filter bag, includes the blow tube branch pipe, and blow tube branch pipe and high-pressure fan intercommunication, the cover has the cap that keeps out the wind that can seal the corresponding filter bag mouth on the blow tube branch pipe, the cap that keeps out the wind is sealed with blow tube branch pipe slip, the cap that keeps out the wind is driven along blow tube branch pipe axis up-and-down reciprocating motion through drive arrangement.

When the dust removing device is used, air is blown out from the blowpipe branch pipe under the action of the high-pressure fan, wherein the air blocking cap moves downwards and is buckled on the filter bag under the drive of the driving device, and then the air blocking cap and the filter bag are sealed through the air blocking cap and the blowpipe branch pipe are in sliding seal, so that the air is completely blown into the filter bag through the air blocking cap, and the air cannot overflow from the filter bag mouth under the action of the air blocking cap, so that the pressure in the filter bag is increased, the filter bag expands, and better dust removing is realized.

Preferably, the wind shielding cap comprises an outer tube sleeved on the blow pipe branch pipe and in sliding sealing with the blow pipe branch pipe, a flare opening coaxial with the outer tube is outwards extended from top to bottom at the lower part of the outer tube, and the filter bag opening is positioned in a downward projection plane of the corresponding flare opening. The horn mouth can make the air current blow out more smooth and easy and full of the filter bag, and the outer tube can increase the distance that the horn mouth moved downwards.

Preferably, the outer tubes are fixedly connected through a windshield cap connecting frame, and the windshield cap connecting frame is driven to reciprocate up and down by a driving device. The wind shield cap connecting frame can drive the wind shield cap connecting frame to drive all the outer tubes to move up and down by one driving device.

Preferably, the driving device comprises a fixedly arranged air cylinder, a piston rod of the air cylinder faces downwards and is coaxially and fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the windshield cap connecting frame. The cylinder stretches out, the piston rod moves downwards, the connecting rod is driven to move downwards, the wind shielding cap connecting frame is driven to move downwards, and the wind shielding cap connecting frame is driven to move upwards by retracting the cylinder.

Preferably, the cylinder is fixedly arranged on a cylinder support, and the cylinder support is fixedly arranged on the dust remover.

Preferably, a pressure release door is arranged at the horn mouth of the wind shielding cap. The pressure release door can realize the pressure release, prevents that the filter bag from being propped up to be damaged because of too high pressure.

Preferably, the horn mouth of the wind shielding cap is vertically opposite to the corresponding filter bag, and the outer diameter of the lower end face of the horn mouth covers the outer diameter of the filter bag mouth. The space occupied by the horn mouth of the wind shielding cap can be reduced as much as possible on the premise of meeting the sealing requirement.

Preferably, the blowpipe branch pipes are all communicated with a blowpipe with one closed end, the blowpipe is communicated with an air bag, the air bag is communicated with a first air inlet pipe and a second air inlet pipe, the first air inlet pipe is communicated with a high-pressure fan, a first valve is arranged on the first air inlet pipe, compressed air is introduced into the second air inlet pipe, and a second valve is arranged on the second air inlet pipe. Closing and opening the first valve and closing the second valve, and under the drive of the high-pressure fan, gas enters the blowpipe branch pipe through the first air inlet pipe, the air bag and the blowpipe, and when the first valve is closed and the second valve is opened, compressed gas can enter the blowpipe branch pipe along the second air inlet pipe, and the compressed gas can enable the filter bag to shake violently, so that the ash removal effect is further improved.

Preferably, a third valve is arranged between the blowpipe and the air bag, so that a plurality of blowpipes are conveniently arranged on the air bag.

The beneficial effects of the utility model are as follows: the use of this application can utilize cylinder control to keep off the hood and follow blow tube branch pipe and move downwards when the deashing to the filter bag, and then can make the cap that keeps out the wind seal the filter bag for the air pressure rises in the filter bag, and the filter bag inflation realizes better deashing.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a filter bag corresponding to a plurality of blow pipe branches.

The figure shows:

1. the blow pipe branch pipe, 2, the wind shield cap, 3, the wind shield cap connecting frame, 4, the cylinder, 5, the connecting rod, 6, the pressure relief door, 7, the blow pipe, 8, the air bag, 9, the first connecting pipe, 10, the second connecting pipe, 11, the high-pressure fan, 12, the filter bag, 21, the outer pipe, 22, the horn mouth, 13 and the third valve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

An internal blowing ash removing device for a single filter bag is shown in fig. 1 and 2. Including blowpipe branch pipe 1, the equal intercommunication of blowpipe branch pipe 1 is on both ends confined blowpipe 7, and blowpipe 7 is linked together with third valve 13, again with the air pocket 8 intercommunication, air pocket 8 intercommunication has first intake pipe 9 and second intake pipe 10, is provided with first valve on first intake pipe 9 and the high-pressure fan 11 intercommunication, lets in the second intake pipe 10 has compressed air and is equipped with the second valve on the second intake pipe 10. The blow pipe branch pipe 1 is sleeved with a wind shielding cap 2 capable of sealing an opening of the filter bag 12, the wind shielding cap 2 is in sliding sealing with the corresponding blow pipe branch pipe 1, and the wind shielding cap 2 reciprocates up and down along the axis of the blow pipe branch pipe 1 through a driving device. When the dust removing device is used, the first valve is opened first, the second valve is closed, the third valve is opened, gas enters the blowpipe branch pipe 1 through the first air inlet pipe 9, the gas bag 8 and the blowpipe 7 under the action of the high-pressure fan 11 and is blown out from the blowpipe branch pipe 1, wherein when the wind shielding cap 2 is driven by the driving device to move downwards and is buckled on the filter bag 12, the wind shielding cap 2 is sealed with the blowpipe branch pipe 1 in a sliding manner, so that the gas is blown into the filter bag 12 through the wind shielding cap 2, and the gas cannot overflow from the opening of the filter bag 12 under the action of the wind shielding cap 2, so that the pressure in the filter bag 12 is increased, the filter bag 12 is expanded, and better dust removing is realized. Then the first valve is closed and the second valve is opened, the third valve is opened, compressed gas can enter the blow pipe branch pipe 1 along the second air inlet pipe 10, and the compressed gas can severely shake the filter bag 12, so that the ash removal effect is further improved.

The wind shielding cap 2 comprises an outer tube 21 sleeved on the blow pipe branch tube 1 and in sliding sealing with the blow pipe branch tube 1, a flare 22 coaxial with the outer tube 21 is outwards extended from top to bottom at the lower part of the outer tube 21, and the opening of the filter bag 12 is positioned in the downward projection plane of the corresponding flare 22. The flare 22 allows for smoother airflow blowing out and filling of the filter bag 12, while the outer tube 21 increases the distance the flare 22 moves downward.

The outer tubes 21 are fixedly connected through a windshield cap connecting frame 3, and the windshield cap connecting frame 3 is driven by a driving device to reciprocate up and down. The driving device comprises a cylinder 4, the cylinder 4 is fixedly arranged on a cylinder 4 support, the cylinder 4 support is fixedly arranged on the dust remover, a piston rod of the cylinder 4 faces downwards and is coaxially and fixedly connected with a connecting rod 5, and the connecting rod 5 is fixedly connected with the windshield cap connecting frame 3.

Wherein, cylinder 4 stretches out, and the piston rod moves down to drive connecting rod 5 to move down, and then drive hood link 3 to move down, also cylinder 4 withdraws to drive hood link 3 to move up. And a driving device can drive the windshield connecting frame 3 to drive the outer tube 21 to move up and down through the windshield connecting frame 3.

The horn mouth 22 of the wind cap 2 is provided with a pressure release door 6. The pressure release door 6 can realize pressure release, prevents that the filter bag 12 from being propped up to be damaged because of too high pressure.

The horn of the wind cap 2 is opposite to the corresponding filter bag 12 up and down, and the outline of the opening of the filter bag 12 covered by the outer diameter of the lower end face of the horn mouth 22 is the same. The space occupied by the bell mouth 22 of the hood 2 can be reduced as much as possible under the condition of meeting the sealing requirement.

Meanwhile, the back blowing pressure of the filter bag 12 can be adjusted by adjusting the gap between the wind shielding cap 2 and the opening of the filter bag 12, namely the internal expansion force of the filter bag 12 is adjusted, and the soot blowing strength can be adjusted.

The utility model discloses a wind cap 2 can be overlapped to many blowpipe branch pipes 1 and many blowpipe branch pipes 1 insert a corresponding filter bag, and then not only can adapt to various filter bag shapes, can increase filter bag 12 internal pressure simultaneously.

A third valve 13 is arranged between the blowpipe 7 and the air bag 8, so that a plurality of blowpipes 7 are conveniently arranged on the air bag 8.

The use of this application can utilize cylinder 4 control windshield 2 to follow blow tube branch pipe 1 and remove downwards when the deashing to filter bag 12, and then can make windshield 2 seal filter bag 12 for the internal air pressure of filter bag 12 risees, and filter bag 12 inflation realizes better deashing.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. An interior ash removal device that bloies of single filter bag, its characterized in that: the filter bag comprises a blow pipe branch pipe, wherein the blow pipe branch pipe is communicated with a high-pressure fan, a wind shielding cap capable of sealing a corresponding filter bag port is sleeved on the blow pipe branch pipe, the wind shielding cap is in sliding sealing with the blow pipe branch pipe, the wind shielding cap is driven by a driving device to reciprocate up and down along the axis of the blow pipe branch pipe, the wind shielding cap comprises an outer pipe sleeved on the blow pipe branch pipe and in sliding sealing with the blow pipe branch pipe, a horn mouth coaxial with the outer pipe is outwards extended from top to bottom at the lower part of the outer pipe, and the filter bag port is positioned in a downward projection plane of the corresponding horn mouth; the outer tubes are fixedly connected through a windshield cap connecting frame, and the windshield cap connecting frame is driven by a driving device to reciprocate up and down; the driving device comprises a fixedly arranged air cylinder, a piston rod of the air cylinder faces downwards and is coaxially and fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the windshield cap connecting frame.

2. The single filter bag internal blowing ash removal device of claim 1, wherein: the cylinder is fixed to be set up on the cylinder support, and the cylinder support is fixed to be set up on the dust remover.

3. The single filter bag internal blowing ash removal device of claim 1, wherein: the horn mouth of the wind shield cap is provided with a pressure relief door.

4. The single filter bag internal blowing ash removal device of claim 1, wherein: the wind cap horn is vertically opposite to the corresponding filter bag, and the outer diameter of the lower end face of the horn mouth fully covers the outer diameter of the filter bag mouth.

5. The single filter bag internal blowing ash removal device of claim 1, wherein: the blowpipe branch pipe all communicates on one end confined blowpipe, and the blowpipe other end communicates with the air pocket, and the air pocket intercommunication has first intake pipe and second intake pipe, is provided with first valve in first intake pipe and the high-pressure fan intercommunication and the first intake pipe, lets in the second intake pipe has compressed air and is equipped with the second valve in the second intake pipe.

6. The single filter bag internal blowing ash removal device of claim 1, wherein: a third valve is arranged between the blowpipe and the air bag.