CN212548711U - Large-air-volume micro-dust collecting, separating and purifying system - Google Patents
Large-air-volume micro-dust collecting, separating and purifying system Download PDFInfo
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- CN212548711U CN212548711U CN202020995281.XU CN202020995281U CN212548711U CN 212548711 U CN212548711 U CN 212548711U CN 202020995281 U CN202020995281 U CN 202020995281U CN 212548711 U CN212548711 U CN 212548711U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model relates to a large-air-volume micro-dust collecting, separating and purifying system, which comprises a large-air-volume micro-dust collector, a flue gas pipeline, a main draught fan, a silencer, a main chimney, a concentrated phase smoke dust separator, a secondary fan and an exhaust funnel; the large-air-volume micro-dust catcher consists of a plurality of dust removal bins, and each dust removal bin is internally provided with a filter bag and an ash removal device; the bottom of each dust removing chamber is provided with a flue gas inlet which is respectively communicated with an inlet flue gas distribution pipe, the top of each dust removing chamber is provided with a clean flue gas outlet which is respectively communicated with an air outlet main pipe, and one side of the lower part of each dust removing chamber is provided with a dust outlet which is respectively communicated with a drainage main pipe; the inlet flue gas distribution pipe is connected with a dust collection cover on the upper part of the dust removal point through a flue gas pipeline; the air outlet main pipe is sequentially connected with a main induced draft fan, a silencer and a main chimney; the drainage main pipe is sequentially connected with the concentrated phase smoke dust separator, the secondary fan and the exhaust funnel. The utility model discloses a purification and separation of big amount of wind micronic dust flue gas, and high efficiency, energy-conservation, no secondary pollution.
Description
Technical Field
The utility model relates to a dust entrapment separation purification technical field especially relates to a little dirt entrapment separation clean system of big amount of wind.
Background
With the enhancement of environmental awareness of people, the environmental protection of the nation and the society is emphasized, the environmental protection requirements of various industries are more and more strict, and the production points which are easy to generate dust diffusion are gradually emphasized by people. Especially, in some places with small dust generating amount and large area, such as coke ovens, the oven doors at two sides of coke oven coke, riser gaps, oven top coal charging holes, observation holes and the like of a coke oven machine have long-term, small-amount, irregular, multi-source and accidental smoke overflow, and the smoke has little single point amount, but a plurality of outward escape points, is relatively dispersed and is very difficult to uniformly and effectively collect and process. Meanwhile, dust removal systems such as a coal charging system, a coke discharging system, a machine side system and a furnace end smoke dust removal system can not completely capture smoke dust overflowing in the coal charging and coke discharging processes of the coke oven, and certain limitations exist, so that the parts become important pollution sources for generating unorganized emission smoke dust.
The conventional bag type dust collector for the large-air-volume micro-dust flue gas is not suitable, because the large air volume needs the large filtering area of the bag type dust collector, the scale of a dust removal system is increased to meet the requirement of filtering air speed, and the dust removal device has the defects of large occupied area, high cost, low energy efficiency and the like. Meanwhile, the utilization rate of the ash conveying system is reduced because the ash conveying amount of the low-dust-content flue gas is less, and the ash conveying system needs 24 hours of uninterrupted operation, so that the energy consumption of the dust removal system is increased. Meanwhile, the control of the ash conveying system also increases the maintenance cost of the dust removal system and the control cost of the system.
At present, two common solutions are provided for the treatment and purification of the large-air-volume mote flue gas. Firstly, a conventional dust removal system is adopted, and as mentioned above, when the conventional dust removal system is used for treating the large-air-volume micro-dust flue gas, the conventional dust removal system has the disadvantages of large equipment occupation area, high cost, low energy efficiency and the like. Meanwhile, the dust concentration is low, the utilization rate of the ash conveying system is low, the energy consumption is increased, and the control on the ash conveying system also increases the maintenance cost of the whole dust removing system and the complexity of the system. Secondly, on the basis of adopting a conventional dust removal system, the dust removal and filtration wind speed is increased; however, increasing the filtration air velocity can result in emissions concentrations that do not meet standards, especially in circumstances where current environmental requirements are increasingly stringent. In addition, increasing the filtration air velocity also increases the resistance of the dust collector, which results in increased energy consumption and shortened filter bag life.
Disclosure of Invention
The utility model provides a large-air-volume micro-dust catching, separating and purifying system, which adopts a large-air-volume micro-dust catcher to catch particulate matters in flue gas, adopts a dust removal chamber to carry out ash removal in an independent off-line mode, combines counter air flow to make dust falling from the ash removal in fluidization, treats the dense-phase dust gas after the dust and the flue gas by a dense-phase dust separator to reach the standard and discharge, and uniformly outputs the separated dust; the utility model discloses a purification and separation of big amount of wind micronic dust flue gas, and high efficiency, energy-conservation, no secondary pollution.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a large-air-volume micro-dust collecting, separating and purifying system comprises a large-air-volume micro-dust collector, a flue gas pipeline, a main induced draft fan, a silencer, a main chimney, a concentrated-phase smoke dust separator, a secondary fan and an exhaust funnel; the large-air-volume micro-dust catcher consists of a plurality of dust removal bins, and each dust removal bin is internally provided with a filter bag and an ash removal device; the bottom of each dust removing chamber is provided with a flue gas inlet which is respectively communicated with an inlet flue gas distribution pipe, the top of each dust removing chamber is provided with a clean flue gas outlet which is respectively communicated with an air outlet main pipe, and one side of the lower part of each dust removing chamber is provided with a dust outlet which is respectively communicated with a drainage main pipe; the inlet flue gas distribution pipe is connected with a dust collection cover on the upper part of the dust removal point through a flue gas pipeline; the air outlet main pipe is sequentially connected with a main induced draft fan, a silencer and a main chimney; the drainage main pipe is sequentially connected with the concentrated phase smoke dust separator, the secondary fan and the exhaust funnel.
And an adjusting turning plate is arranged at the smoke inlet.
The dust outlet is connected with the main drainage pipe through a branch drainage pipe, and the branch drainage pipe is provided with a drainage on-off valve.
The clean flue gas outlet is connected with the air outlet main pipe through an air outlet branch pipe, and an outlet off-line valve is arranged on the air outlet branch pipe.
The dense phase smoke dust separator is a bag-type dust collector, an electric dust collector or other smoke gas separation devices.
An ash storage bin is arranged at the bottom of the dense-phase smoke dust separator, and an ash conveying device is arranged at an ash outlet at the bottom of the ash storage bin.
And a pressure release valve is arranged on one side of the upper part of the high-air-volume micro dust catcher.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the device is suitable for purifying and separating the smoke with large air quantity and tiny dust, is also suitable for inflammable and explosive smoke, and has wide application range;
2) compared with the traditional bag type dust collector, the high-air-volume micro-dust catcher eliminates a dust hopper at the bottom, reduces the possibility of secondary dust raising, greatly reduces the size of equipment, reduces the initial construction investment, and has higher equipment utilization rate;
3) only a small amount of dust conveying devices are arranged on the dense-phase smoke dust wind separator, so that the operation and the control are more convenient, and meanwhile, the investment, the occupied area, the operation and maintenance, the energy consumption and other costs of the dust conveying devices are reduced; the working environment is improved while secondary dust raising caused by the dust conveying device is avoided;
4) compared with a conventional dust removal system adopting a flue gas inlet flap valve, the flue gas inlet adjusting flap valve for the high-air-volume micro-dust catcher has the advantages of better adjusting balance and more convenient adjustment.
Drawings
Fig. 1 is a front view of the large-air-volume micro-dust collecting, separating and purifying system of the present invention.
Figure 2 is a top view of figure 1 (flue gas duct and dust cage not shown).
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a view a-a in fig. 2.
In the figure: 1. big amount of wind micronic dust catcher 2, flue gas pipeline 3, main draught fan 4, muffler 5, main chimney 6, dense phase smoke and dust separator 7, secondary fan 8, aiutage 9, ash conveying device 10, pressure relief valve 11, dust cage 12, inlet flue gas distributing pipe 13, adjusting turning plate 14, air outlet main pipe 15, ash cleaning device 16, filter bag 17, outlet off-line valve 18, drainage on-off valve 19, drainage main pipe
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-4, the large air flow micro dust collecting, separating and purifying system of the present invention comprises a large air flow micro dust collector 1, a flue gas pipeline 2, a main induced draft fan 3, a silencer 4, a main chimney 5, a dense phase smoke dust separator 6, a secondary fan 7 and an exhaust funnel 8; the large-air-volume micro dust catcher 1 consists of a plurality of dust removal chambers, and each dust removal chamber is internally provided with a filter bag 16 and an ash removal device 15; the bottom of each dust removing chamber is provided with a flue gas inlet which is respectively communicated with an inlet flue gas distribution pipe 12, the top of each dust removing chamber is provided with a clean flue gas outlet which is respectively communicated with an air outlet main pipe 14, and one side of the lower part of each dust removing chamber is provided with a dust outlet which is respectively communicated with a drainage main pipe 19; the inlet flue gas distribution pipe 12 is connected with a dust collection cover 11 at the upper part of the dust removal point through a flue gas pipeline 2; the air outlet main pipe 14 is sequentially connected with a main induced draft fan 3, a silencer 4 and a main chimney 5; the drainage header pipe 19 is sequentially connected with the concentrated phase smoke dust separator 6, the secondary fan 7 and the exhaust funnel 8.
And an adjusting turning plate 13 is arranged at the smoke inlet.
The dust outlet is connected with a drainage main pipe 19 through a drainage branch pipe, and a drainage opening and closing valve 18 is arranged on the drainage branch pipe.
The clean flue gas outlet is connected with the air outlet main pipe 14 through an air outlet branch pipe, and an outlet off-line valve 17 is arranged on the air outlet branch pipe.
The dense phase smoke dust separator 6 is a bag-type dust collector, an electric dust collector or other smoke gas separation devices.
An ash storage bin is arranged at the bottom of the dense-phase smoke dust separator 6, and an ash conveying device 9 is arranged at an ash outlet at the bottom of the ash storage bin.
And a pressure release valve 10 is arranged on one side of the upper part of the high-air-volume micro dust catcher 1.
Based on the system, the method for catching, separating and purifying the large-air-volume micro-dust comprises the following steps:
the flue gas collected by the dust collection cover 11 is conveyed to an inlet flue gas distribution pipe 12 through a flue gas pipeline 2, and the flue gas is uniformly distributed to each dust removal chamber through the inlet flue gas distribution pipe 12; after entering the dust removal chamber, the flue gas collects and adheres dust to the filter bag 16 under the filtering and collecting action of the filter bag 16, and the filtered clean flue gas is pumped out by the main induced draft fan 3 through the air outlet main pipe 14, conveyed to the main chimney 5 and then discharged into the atmosphere;
the dust collected by the filter bag 16 is adhered to the surface of the filter bag 16, the pressure difference between the front and the back of the filter bag 16 is gradually increased along with the increase of the adhesion thickness, when the difference value is increased to a set value, the drainage on-off valve 18 corresponding to the dust removal chamber is opened, the outlet off-line valve 17 corresponding to the dust removal chamber is closed at the same time, the dust removal device 15 carries out pulse dust removal on the filter bag 16, and as the flue gas continuously enters the dust removal chamber, the dust falling after dust removal is always in fluidization, so that the sedimentation is avoided; the dust and the flue gas entering the dust removal chamber are mixed and then enter a concentrated phase smoke dust separator 6 under the suction action of a secondary fan 7, and the purified gas treated by the concentrated phase smoke dust separator 6 is discharged into the atmosphere through the secondary fan 7 and an exhaust funnel 8; the dust separated by the dense-phase dust separator 6 is output by an ash conveying device 9.
The large air volume tiny dust catcher is the core equipment of the system of the utility model, and the off-line of the dust removal chamber, the pulse blowing and ash removal, the dust and gas separation and filtration, the fluidization, the mixing of the dense phase dust and gas and the suction and the taking away are all completed in the large air volume tiny dust catcher; the upper parts of all dust removal chambers in the high-air-volume micro dust catcher are respectively provided with a pressure release valve for pressure release or realizing the directional impact of shock waves during explosion, so that the safe operation of the system is ensured.
The dense-phase smoke dust separator is a device for purifying dense-phase mixed smoke in the large-air-volume micro-dust catcher, and an ash storage bin at the bottom of the dense-phase smoke dust separator is connected with an ash conveying system through an ash conveying device.
The secondary fan provides power and is used for sucking the dense phase mixed flue gas to the dense phase smoke dust separator and discharging the purified flue gas into the atmosphere.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A large-air-volume micro-dust collecting, separating and purifying system is characterized by comprising a large-air-volume micro-dust collector, a flue gas pipeline, a main induced draft fan, a silencer, a main chimney, a concentrated-phase smoke dust separator, a secondary fan and an exhaust funnel; the large-air-volume micro-dust catcher consists of a plurality of dust removal bins, and each dust removal bin is internally provided with a filter bag and an ash removal device; the bottom of each dust removing chamber is provided with a flue gas inlet which is respectively communicated with an inlet flue gas distribution pipe, the top of each dust removing chamber is provided with a clean flue gas outlet which is respectively communicated with an air outlet main pipe, and one side of the lower part of each dust removing chamber is provided with a dust outlet which is respectively communicated with a drainage main pipe; the inlet flue gas distribution pipe is connected with a dust collection cover on the upper part of the dust removal point through a flue gas pipeline; the air outlet main pipe is sequentially connected with a main induced draft fan, a silencer and a main chimney; the drainage main pipe is sequentially connected with the concentrated phase smoke dust separator, the secondary fan and the exhaust funnel.
2. The large-air-volume micro-dust collecting, separating and purifying system as claimed in claim 1, wherein the flue gas inlet is provided with an adjusting flap.
3. The large-air-volume micro-dust collecting, separating and purifying system as claimed in claim 1, wherein the dust outlet is connected with the drainage main pipe through a drainage branch pipe, and the drainage branch pipe is provided with a drainage open-close valve.
4. The large-air-volume micro-dust collecting, separating and purifying system as claimed in claim 1, wherein the clean flue gas outlet is connected to the air outlet main pipe through an air outlet branch pipe, and an outlet off-line valve is provided on the air outlet branch pipe.
5. The large-air-volume micro-dust collecting, separating and purifying system as claimed in claim 1, wherein the dense-phase dust separator is a bag-type dust collector or an electric dust collector.
6. The large-air-volume micro-dust collecting, separating and purifying system as claimed in claim 1, wherein an ash storage bin is provided at the bottom of the dense-phase dust separator, and an ash conveying device is provided at an ash outlet at the bottom of the ash storage bin.
7. The large air volume micro dust collecting, separating and purifying system as claimed in claim 1, wherein a pressure relief valve is provided at one side of the upper part of the large air volume micro dust collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020995281.XU CN212548711U (en) | 2020-06-03 | 2020-06-03 | Large-air-volume micro-dust collecting, separating and purifying system |
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| CN202020995281.XU CN212548711U (en) | 2020-06-03 | 2020-06-03 | Large-air-volume micro-dust collecting, separating and purifying system |
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| CN212548711U true CN212548711U (en) | 2021-02-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569558A (en) * | 2020-06-03 | 2020-08-25 | 中冶焦耐(大连)工程技术有限公司 | Large-air-volume micro-dust collecting, separating and purifying system and method |
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- 2020-06-03 CN CN202020995281.XU patent/CN212548711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569558A (en) * | 2020-06-03 | 2020-08-25 | 中冶焦耐(大连)工程技术有限公司 | Large-air-volume micro-dust collecting, separating and purifying system and method |
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