CN110613988A - Dust bag dust remover capable of compressing high-temperature flue gas and purifying back-blowing ash - Google Patents
Dust bag dust remover capable of compressing high-temperature flue gas and purifying back-blowing ash Download PDFInfo
- Publication number
- CN110613988A CN110613988A CN201910772070.1A CN201910772070A CN110613988A CN 110613988 A CN110613988 A CN 110613988A CN 201910772070 A CN201910772070 A CN 201910772070A CN 110613988 A CN110613988 A CN 110613988A
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- CN
- China
- Prior art keywords
- air
- bag
- flue gas
- temperature flue
- air compressor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
Abstract
The invention discloses a compressed high-temperature flue gas purified gas back-blowing ash bag-type dust collector which comprises a bag-type dust collector body and a back-blowing ash mechanism. A flue gas inlet is arranged below the shell of the bag-type dust collector, and a gas purifying chamber is arranged above the shell of the bag-type dust collector; a purified gas outlet is arranged above the purified gas chamber, and a soot blowing pipe is arranged in the purified gas chamber; the ash blowing pipe is connected with an air bag, the air bag is connected with a heat-preservation air storage tank, the heat-preservation air storage tank is connected with an air compressor, and an inlet of the air compressor is positioned in the purified air chamber and is consistent with the direction of the purified air outlet; an inlet of the air compressor is provided with an air inlet filtering device, a filter screen of the air inlet filtering device is clamped by a hoop, and the hoop is fixed by a fastening bolt; the air compressor, the air bag and the soot blowing pipe are controlled by a control mechanism. The invention can improve the soot blowing temperature in the bag-type dust remover, reduce the acid corrosion of the filter bag, prevent the filter bag from being pasted with the bag and hardened, reduce the resistance of the bag-type dust remover, reduce the power consumption of the induced draft fan and improve the operation efficiency of the unit.
Description
Technical Field
The invention relates to the field of bag-type dust removal, in particular to a bag-type dust remover for compressed high-temperature flue gas purified gas back-blowing ash.
Background
The flow resistance of the bag-type dust collector is overlarge, so that the safety and economic operation of the thermal generator set are directly endangered and influenced. A high-pressure air source of a back-blowing mechanism of the conventional bag-type dust collector is taken from the environment, the temperature of high-pressure air is too low during back-blowing, so that the temperature of smoke around a filter bag is instantaneously reduced to a dew point or below, the acid corrosion of the filter bag is caused, and moist dust blocks the filter bag to cause bag pasting and hardening.
After the filter bag is subjected to acid corrosion, the dust removal efficiency of the filter bag is reduced, so that the dust concentration of the smoke is increased, the ecological environment and the life health of people are harmed, the service life of the filter bag is shortened, and the operation and maintenance cost is increased; after the filter bags are pasted and hardened, the whole flow resistance of the bag-type dust collector is increased, so that the power consumption of the induced draft fan is increased, and the operation efficiency of the unit is reduced.
Disclosure of Invention
The invention provides a compressed high-temperature flue gas clean gas back-blowing ash bag-type dust remover, which aims to solve the problems that the temperature of a back-blowing ash gas source of the bag-type dust remover is too low, so that the acid corrosion of a filter bag, bag pasting and hardening are caused, and the safety and economic operation of a thermal power generator set are endangered.
The technical scheme adopted by the invention for solving the technical problem is as follows: a compressed high-temperature flue gas clean gas back-blowing ash bag-type dust collector comprises a conventional bag-type dust collector body and a back-blowing mechanism which utilizes the compressed high-temperature flue gas clean gas as an air source. The bag-type dust collector body comprises a box body, a filter bag, a cage and a pattern plate, wherein the box body comprises a dust removing chamber, a gas purifying chamber and an inlet and outlet flue; the back blowing mechanism comprises a blowing pipe, an air bag, a heat preservation air storage tank, an air compressor and a controller, wherein the blowing pipe is arranged in the clean air chamber, the inlet of the blowing pipe is connected with the air bag, and the air bag is connected with the heat preservation air storage tank; the heat-preservation air storage tank is connected with the air compressor, and an inlet of the air compressor is provided with an air inlet filtering device; the air bag, the heat preservation air storage tank and the air compressor are connected to a controller.
Preferably, the soot blowing pipes are uniformly distributed in the air purifying chamber, the outlet of each soot blowing pipe is flush with the center of the filter bag opening, one end of each soot blowing pipe is connected with the air bag, and the other end of each soot blowing pipe is plugged.
Preferably, the air inlet of the heat-preservation air storage tank is connected with an air compressor, and the air outlet of the heat-preservation air storage tank is connected with an air bag.
Preferably, the outlet of the air compressor is connected with the heat-preservation air storage tank, the inlet of the air compressor is provided with the air inlet filtering device, the inlet of the air source is arranged in the bag-type dust remover air purification chamber, and the back blowing mechanism is regulated and controlled by the controller.
Compared with the prior art, the invention has the beneficial effects that: the compressed high-temperature flue gas clean gas is used for blowing and cleaning the filter bag, and the high-temperature flue gas clean gas does not need to be heated, so that the acid corrosion, bag pasting and hardening of the filter bag caused by the over-low temperature of an air source in the prior art can be effectively prevented, the service life of the filter bag is prolonged, the flow resistance of a bag-type dust remover is reduced, the power consumption of a draught fan is reduced, and the operation efficiency of a unit is improved; the air compressor machine entry is equipped with air inlet filter equipment, has reducible its wearing and tearing to the air compressor machine, and air inlet filter equipment's filter screen changes conveniently.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the blow-back mechanism of the present invention.
FIG. 3 is a schematic view of the intake air filtering device of the blowback mechanism of the present invention.
In the figure: 1. clamping a hoop; 2. a purified gas outlet; 3. an air compressor; 4. a heat preservation air storage tank; 5. a controller; 6. air bags; 7. a dust collector housing; 8. a flue gas inlet; 9. a filter bag; 10. a soot blowing pipe; 11. a gas purifying chamber; 12. an intake air filtering device; 13. and fastening the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a compressed high temperature flue gas clean gas dust-back blowing bag-type dust collector includes: the dust remover comprises a dust remover shell 7 and an air compressor 3, wherein a flue gas inlet 8 is arranged at the lower side of the dust remover shell 7, an air purifying chamber 11 is arranged at the upper side of the dust remover shell, and a plurality of groups of filter bags 9 which are arranged according to a certain rule are arranged in the dust remover shell; the air purifying chamber 11 is provided with a high-temperature flue gas purified gas outlet 2, an air inlet pipe of the air compressor 3 is arranged at the same side of the high-temperature flue gas purified gas outlet 2, and an ash blowing pipe 10 is fixed in the air purifying chamber 11; 3 air inlets of air compressor machine set up 12, and filter device 12's that admits air filter screen is pressed from both sides tightly by clamp 1, and clamp 1 is fixed by fastening bolt 13, and 3 exit linkage heat preservation gas holder 4 of air compressor machine, heat preservation gas holder 4 connect the gas bag 6, and air compressor machine 3, heat preservation gas holder 4, gas bag 6 are connected to controller 5.
The working principle of the invention is as follows: air compressor machine 3 is through the filter screen of filter equipment 12 that admits air, rely on the high temperature flue gas net gas in controller 5 direct compression gas purification chamber 11, store in heat preservation gas holder 4, heat preservation gas holder 4 connects gas bag 6, gas bag 6 connects the soot blower pipe 10 that is located gas purification chamber 11, the gas outlet of soot blower pipe 10 aims at filter bag 9 center, gas bag 6 and soot blower pipe 10 rely on controller 5, the high temperature flue gas net gas blowout after will compressing, when guaranteeing that the flue gas is higher than dew point temperature around the filter bag 9, make and come from flue gas inlet 8, and the dust that adheres to in filter bag 9 is clear away, finally fall into dust remover casing 7 lower part and be collected, thereby guarantee that filter bag 9 is not corroded by acid and paste bag and harden.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description. Accordingly, all changes which come within the meaning and range of equivalency of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a compression high temperature flue gas net gas blowback grey sack cleaner, includes air compressor machine (3) and dust remover casing (7), its characterized in that: the inlet of the air compressor (3) is provided with the air inlet filtering device (12), and the air inlet filtering device is fixed by the hoop (1) and is fastened by the fastening bolt (13); the tail end of an inlet pipeline of the air compressor (3) is positioned in the air purifying chamber (11), the direction of the inlet pipeline is consistent with that of the high-temperature flue gas purified gas outlet (2), the outlet of the air compressor (3) is connected with the heat-preservation air storage tank (4), the heat-preservation air storage tank (4) is connected with the air bag (6), the air bag (6) is connected with the dust blowing pipe (10), and the air compressor (3), the heat-preservation air storage tank (4) and the air bag (6) are regulated and controlled by the controller (5); the air nozzle of the dust blowing pipe (10) is flush with the center of the bag opening of the filter bag (9); the filter bag (9) is fixed in the dust remover shell (7), and the high-temperature flue gas inlet (8) is arranged on the lower side of the dust remover shell (7).
2. The compressed high-temperature flue gas net gas blowback ash bag-type dust collector of claim 1, wherein: the tail end of an inlet pipeline of the air compressor (3) is arranged in the air purifying chamber (11), and high-temperature flue gas purified gas is directly compressed for soot blowing.
3. The compressed high-temperature flue gas net gas blowback ash bag-type dust collector of claim 2, wherein: the inlet of the air compressor (3) is consistent with the direction of the high-temperature flue gas purified gas outlet (2), so that the high-temperature flue gas purified gas is easier to absorb, and the power consumption of the air compressor (3) is reduced.
4. The high-temperature flue gas net gas blowback ash bag-type dust collector of claim 3, wherein: air compressor machine (3) inlet pipe is equipped with it is right in order to reduce the dust that filter equipment (12) admits air compressor machine (3) wearing and tearing, simultaneously, it is located to admit air filter equipment (12) air-purifying chamber (11) are outside, the filter screen of filter equipment (12) that admits air is convenient for change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910772070.1A CN110613988A (en) | 2019-08-12 | 2019-08-12 | Dust bag dust remover capable of compressing high-temperature flue gas and purifying back-blowing ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910772070.1A CN110613988A (en) | 2019-08-12 | 2019-08-12 | Dust bag dust remover capable of compressing high-temperature flue gas and purifying back-blowing ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110613988A true CN110613988A (en) | 2019-12-27 |
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ID=68922395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910772070.1A Pending CN110613988A (en) | 2019-08-12 | 2019-08-12 | Dust bag dust remover capable of compressing high-temperature flue gas and purifying back-blowing ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110613988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298537A (en) * | 2020-04-02 | 2020-06-19 | 盐城市顺源环保设备有限公司 | Potash fertilizer drying waste gas treatment process |
| CN113731046A (en) * | 2021-08-04 | 2021-12-03 | 江阴市南方干燥设备有限公司 | Pulse sack inner loop blowback dust fall ware |
-
2019
- 2019-08-12 CN CN201910772070.1A patent/CN110613988A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298537A (en) * | 2020-04-02 | 2020-06-19 | 盐城市顺源环保设备有限公司 | Potash fertilizer drying waste gas treatment process |
| CN113731046A (en) * | 2021-08-04 | 2021-12-03 | 江阴市南方干燥设备有限公司 | Pulse sack inner loop blowback dust fall ware |
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