CN111467898A

CN111467898A - Cloth bag dust removal equipment for purifying boiler tail gas

Info

Publication number: CN111467898A
Application number: CN202010297975.0A
Authority: CN
Inventors: 马忠海
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-07-31

Abstract

The invention discloses a cloth bag dust removing device for purifying boiler tail gas, which comprises a base, wherein a purifying chamber is arranged on the side wall of the base, two support columns are arranged in the purifying chamber, a filter bag is sleeved outside the support columns, the lower end of the filter bag is fixedly connected with an iron ring, the lower end of the iron ring is elastically connected to the inner bottom of the purifying chamber through a first spring, a storage groove is formed in the side wall of the base, an exhaust fan is installed in the storage groove, one fan blade of the exhaust fan is made of a magnetic material, and an air inlet communicated with the storage groove is formed in the lower end of the base. The dust removing device can shake off the dust adsorbed by the filter bag by continuously pumping the filter bag through the reciprocating up and down movement of the iron ring, and does not need to be provided with an additional fan to generate compressed air to remove the dust on the filter bag, thereby greatly reducing the volume of equipment and reducing the equipment cost and the energy cost.

Description

Cloth bag dust removal equipment for purifying boiler tail gas

Technical Field

The invention relates to the technical field related to environment-friendly purification equipment, in particular to cloth bag dust removal equipment for purifying boiler tail gas.

Background

When the boiler tail gas is discharged, the boiler tail gas is generally subjected to dust removal and purification treatment by using a bag-type dust collector, after the boiler tail gas is used for a period of time, the more dust on a filter bag in the bag-type dust collector is accumulated, when the equipment resistance reaches a limited resistance value, an electric control pulse valve is opened according to a set program to stop air blowing, the pressure in the filter bag is increased by instantly blowing compressed air, and the dust on the filter bag is shaken off.

This kind of design, two fans need be installed at least, are used for extracting boiler tail gas and producing compressed air respectively, lead to equipment bulky, equipment cost is high, and power consumption is big etc. defect, and boiler tail gas often is higher temperature simultaneously, and after long-term the use, the oxidation speed of metal parts in the dust collector can be accelerated to high temperature, has shortened the life of equipment.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a cloth bag dust removal device for purifying boiler tail gas.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a be used for boiler tail gas purification to use sack dust collecting equipment, includes the base, the clean room has been seted up to the lateral wall of base, be equipped with two support columns in the clean room, the support column overcoat is equipped with the filter bag, the lower extreme fixedly connected with hoop of filter bag, the lower extreme of hoop passes through the interior bottom of first spring elastic connection at the clean room, the lateral wall of base has been seted up and has been put the thing groove, put the thing inslot and install the air exhauster, just one of them flabellum of air exhauster is made by magnetic material, the lower extreme of base is seted up and is put the air inlet of thing groove intercommunication, the lateral wall of base is seted up the intercommunication clean room and is put the outlet air passageway in thing groove, two guide plates of inside top fixedly connected with of clean room.

Preferably, the stock solution chamber has been seted up to the lateral wall of base, the bar groove has been seted up to the lateral wall of support column, the bar groove passes through the pipe intercommunication with the stock solution chamber, the sealed sliding connection of bar inslot has the piston of iron system, the lower extreme of piston passes through the interior bottom of second spring elastic connection in the bar groove, a plurality of apopores that communicate with the bar groove are seted up to the lateral wall of support column, install first check valve in the pipe, install the second check valve on the piston, the dust storage tank with the clean room intercommunication is seted up to the lateral wall of base.

The invention has the following beneficial effects:

1. one fan blade of the exhaust fan is made of a magnetic material, after boiler tail gas is exhausted, each fan blade on the exhaust fan starts to slowly stop rotating, the magnetic fan blade on the exhaust fan continuously attracts two iron rings to sequentially move downwards, and after the magnetic fan blade leaves, the first spring pushes the iron rings to move upwards and reset, so that after the boiler tail gas is exhausted, the iron rings reciprocate and can continuously pump the filter bag, dust adsorbed by the filter bag is shaken off, an additional fan is not required to be installed to generate compressed air to remove the dust on the filter bag, the size of equipment is greatly reduced, and the equipment cost and the energy cost are reduced;

2. by arranging the two guide plates, the boiler tail gas can flow in the purification chamber in a snake shape and can be fully contacted with the two filter bags, so that the retention time of the boiler tail gas in the purification chamber is prolonged, the contact area of the boiler tail gas and the filter bags is increased, and the dust removal effect on the boiler tail gas is greatly enhanced;

3. through setting up parts such as stock solution chamber, bar groove, piston and second spring, shut down the back at the air exhauster, each flabellum on the air exhauster begins slowly to stall for the piston constantly reciprocates under the spring action of magnetic force and second spring, can take out stock solution intracavity water and discharge by the apopore, can bring the dust of shaking off into the dust storage tank, in order to make things convenient for follow-up processing.

4. Constantly flow into the bar groove and the clean room through water, can in time absorb the heat in the clean room, avoid the heat in the clean room to pile up and produce high temperature to avoid high temperature to accelerate metal parts's oxidation process, prolonged the life of this device.

Drawings

Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is a schematic diagram of the back structure in fig. 3.

In the figure: the device comprises a base 1, an article placing groove 2, an exhaust fan 3, an air inlet 4, an air outlet channel 5, a purification chamber 6, a support column 7, a strip-shaped groove 71, a water outlet 72, a filter bag 8, an iron ring 9, a first spring 10, a guide plate 11, an air outlet 12, a piston 13, a liquid storage cavity 14, a guide pipe 15, a second spring 16 and a dust storage groove 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-2, a cloth bag dust removal device for purifying boiler tail gas comprises a base 1, a purifying chamber 6 is arranged on the side wall of the base 1, and two supporting columns 7 are arranged in the purifying chamber 6.

Support column 7 overcoat is equipped with filter bag 8, and the lower extreme fixedly connected with hoop 9 of filter bag 8, and hoop 9's lower extreme is through the interior bottom of first spring 10 elastic connection at clean room 6, and the lateral wall of base 1 has been seted up and has been put thing groove 2, puts and installs air exhauster 3 in the thing groove 2, and one of them flabellum of air exhauster 3 is made by magnetic material.

The lower extreme of base 1 is seted up and is put the air inlet 4 of thing groove 2 intercommunication, and the lateral wall of base 1 is seted up intercommunication clean room 6 and is put the air outlet channel 5 of thing groove 2, two guide plates 11 of the interior top fixedly connected with of clean room 6, and the gas outlet 12 with clean room 6 intercommunication is seted up to the lateral wall of base 1.

In this embodiment, make air exhauster 3 in the intermittent extraction boiler tail gas, extract partial boiler tail gas promptly and stop extracting boiler tail gas after a period through utilizing current electrical control technology.

When the exhaust fan 3 runs at a high speed, the boiler tail gas enters from the gas inlet 4 and is discharged into the purifying chamber 6 through the gas outlet channel 5, and flows in the purifying chamber 6 in a serpentine path after being guided by the guide plate 11 (the flowing direction of the boiler tail gas is shown as the arrow direction in fig. 2), and the boiler tail gas is discharged from the gas outlet 12 after being fully contacted with the two filter bags 8, so that the two filter bags 8 can fully adsorb the smoke dust in the boiler tail gas.

In the operation process of the exhaust fan 3, one of the magnetic blades continuously approaches and attracts the two iron rings 9 to move downwards, and meanwhile, because the exhaust fan 3 is in a high-speed operation state, the rotating speed of each blade of the exhaust fan 3 is very high, so that when the first spring 10 does not push the iron rings 9 to move upwards and return, the magnetic blade attracts the iron rings 9 to move downwards. Therefore, in the operation process of the exhaust fan 3, the iron ring 9 is always positioned at the lower position of the support column 7 and pulls the filter bag 8 down to a tightening state, so that the smoke dust in the tail gas of the boiler can be adsorbed.

When the exhaust fan 3 stops, the fan blades slowly stop rotating under the action of inertia, at the moment, the rotating speed of the fan blades is gradually reduced, the time interval that the magnetic fan blades are close to and attract the two iron rings 9 to move downwards is prolonged, after the magnetic fan blades are far away from the iron rings 9, the first spring 10 can push the iron rings 9 to move upwards and reset, the iron rings 9 continuously move up and down, meanwhile, the filter bags 8 are driven to shake up and down together, therefore, dust on the filter bags 8 can be shaken off, an extra fan is not required to be installed to generate compressed air to remove the dust on the filter bags 8, the size of equipment is greatly reduced, and the equipment cost and the energy cost are reduced.

It should be noted that, when the exhaust fan 3 is stopped and the rotation speed of the fan blades is reduced to the point that the first spring 10 has to push the iron ring 9 to move upward and reset, the rotation speed of the fan blades of the exhaust fan 3 is low and cannot generate enough force to extract the boiler exhaust gas, so that the blown dust is not brought into the boiler exhaust gas and is not taken out.

Example two:

referring to fig. 3-4, different from the first embodiment, the side wall of the base 1 is provided with a liquid storage cavity 14, it should be noted that the side wall of the base 1 is provided with a liquid filling opening communicated with the liquid storage cavity 14, and a sealing plug is arranged in the liquid filling opening.

Strip groove 71 has been seted up to the lateral wall of support column 7, strip groove 71 passes through pipe 15 intercommunication with stock solution chamber 14, the sealed sliding connection has the piston 13 of iron system in strip groove 71, the lower extreme of piston 13 passes through the interior bottom of 16 elastic connection of second spring at strip groove 71, a plurality of apopores 72 that communicate with strip groove 71 are seted up to the lateral wall of support column 7, install first check valve in the pipe 15, install the second check valve on the piston 13, dust storage tank 17 with clean room 6 intercommunication is seted up to the lateral wall of base 1. And the side wall of the base 1 is provided with an opening communicated with the dust storage groove 17, and a valve is arranged in the opening so as to conveniently and periodically treat the dust accumulated in the dust storage groove 17.

The first one-way valve only allows water to flow from the duct 15 into the strip-shaped groove 71 and the second one-way valve only allows water to flow from the upper end of the piston 13 into the lower end of the piston 13.

When the exhaust fan 3 is turned off and slowly stops rotating, the rotation speed of the fan blades is gradually reduced, the principle of pushing the iron ring 9 to move up and down in the first embodiment is the same, the piston 13 also moves up and down in a reciprocating manner under the action of the magnetic force and the elastic force of the second spring 16, water in the liquid storage cavity 14 can be pumped into the strip-shaped groove 71 and then discharged from the water outlet hole 72 under the flow limiting action of the first one-way valve and the second one-way valve, and finally flows into the dust storage groove 17, and dust shaken at the bottom in the purification chamber 6 can be brought into the dust storage groove 17 by water flow.

By the design, on one hand, dust can be prevented from being accumulated in the purifying chamber 6, the purifying chamber 6 is kept clean, and meanwhile, dust in the purifying chamber 6 can be prevented from being blown up and discharged by subsequent discharged boiler tail gas, on the other hand, water discharged into the strip-shaped groove 71 and the purifying chamber 6 can also absorb heat in the purifying chamber 6, heat accumulation is avoided to generate high temperature, oxidation speed of metal parts in equipment is accelerated, and therefore the service life of the device is prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The cloth bag dust removing device for purifying the tail gas of the boiler comprises a base (1) and is characterized in that a purifying chamber (6) is formed in the side wall of the base (1), two supporting columns (7) are arranged in the purifying chamber (6), a filtering bag (8) is sleeved outside the supporting columns (7), an iron ring (9) is fixedly connected to the lower end of the filtering bag (8), the lower end of the iron ring (9) is elastically connected to the inner bottom of the purifying chamber (6) through a first spring (10), an object placing groove (2) is formed in the side wall of the base (1), an exhaust fan (3) is installed in the object placing groove (2), one fan blade of the exhaust fan (3) is made of a magnetic material, an air inlet (4) communicated with the object placing groove (2) is formed in the lower end of the base (1), an air outlet channel (5) communicated with the purifying chamber (6) and the object placing groove (2) is formed in the side wall of, two guide plates (11) are fixedly connected to the inner top of the purifying chamber (6), and an air outlet (12) communicated with the purifying chamber (6) is formed in the side wall of the base (1).

2. The cloth bag dust removal device for purifying boiler tail gas according to claim 1, a liquid storage cavity (14) is arranged on the side wall of the base (1), a strip-shaped groove (71) is arranged on the side wall of the supporting column (7), the strip-shaped groove (71) is communicated with the liquid storage cavity (14) through a conduit (15), the strip-shaped groove (71) is internally connected with an iron piston (13) in a sealing and sliding way, the lower end of the piston (13) is elastically connected to the inner bottom of the strip-shaped groove (71) through a second spring (16), the side wall of the supporting column (7) is provided with a plurality of water outlet holes (72) communicated with the strip-shaped groove (71), a first one-way valve is arranged in the guide pipe (15), a second one-way valve is arranged on the piston (13), and a dust storage groove (17) communicated with the purification chamber (6) is formed in the side wall of the base (1).