CN217410217U - Carbon fiber waste gas burns back high temperature siliceous dust cleaning device - Google Patents
Carbon fiber waste gas burns back high temperature siliceous dust cleaning device Download PDFInfo
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- CN217410217U CN217410217U CN202221278948.XU CN202221278948U CN217410217U CN 217410217 U CN217410217 U CN 217410217U CN 202221278948 U CN202221278948 U CN 202221278948U CN 217410217 U CN217410217 U CN 217410217U
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Abstract
The utility model particularly relates to a silicon-containing dust cleaning device of carbon fiber waste gas incineration back high temperature, include: the dust remover comprises a dust remover body and a dust removing mechanism; the dust remover body comprises a settling chamber, an air explosion pipe arranged in the settling chamber, a waste discharge fan arranged on the settling chamber and used for exhausting air and a waste discharge pipeline connected to the air exhaust side of the waste discharge fan; the dust removal mechanism is connected to the waste discharge pipeline and comprises an air inlet pipe connected to the waste discharge pipeline. The utility model discloses compare with original manual cleaning, use manpower sparingly, safe and reliable does not need personnel to get into that boiler is inside to clear up, has avoided dangerous hidden danger, has guaranteed that staff's personal is healthy, can clear up after parkking simultaneously, has avoided needing to fall the temperature to the clearance of can examining and repairing below 40 degrees, has saved the clearing time, for driving in advance provides the assurance, has saved the waste of the energy, has improved output, has reduced manufacturing cost.
Description
Technical Field
The utility model relates to a big silk bundle carbon fiber waste gas burns back dust removal technical field specifically is carbon fiber waste gas burns back silicon-containing dust cleaning device of high temperature.
Background
Carbonization of carbon fibers is an important process for producing PAN-based carbon fibers, in which pyrolysis and polycondensation reactions occur, producing a large amount of by-product waste gas and tar. The reaction produces gases of suspended particles such as NH3, HCN, SO2, nitrogen oxides and the like, the gases are directly discharged to cause air pollution, the discharged gases need to be decomposed by a direct-fired incinerator, dust generated after combustion settles in a settling chamber of a boiler, long-time production is realized, more and more dust is hung on the wall of a heat exchange pipe and the settling chamber to cause poor heat exchange, and the shutdown and cleaning are needed.
At present, in the production process of large-tow carbon fibers, the operating temperature of a direct combustion type incinerator is 950 ℃, the temperature in a boiler is 500-plus-700 ℃, hot gas in the incinerator is pumped by a waste exhaust fan after stopping, after 36 hours, the temperature in the boiler is reduced from 700 ℃ to 40 ℃, the main waste exhaust fan is stopped, qualified tests are carried out, labor protection products are worn, the silicon powder in a settling chamber can be cleaned in the boiler, and the cleaned silicon powder is filled into a plastic bag, weighed and conveyed to a specified position for storage. The cleaning needs 6 people to operate, the cleaning is qualified after 6 hours, the time and the labor are wasted, and the driving time of a production line is influenced.
This patent provides a silicon dust cleaning device is contained to carbon fiber waste gas incineration back high temperature, can be fine solution above-mentioned difficult problem park the back need not the cooling can realize the clearance, does not need the people to get into the boiler and clears up, has reduced the down time, has great guiding significance to industrial production.
Disclosure of Invention
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore, the utility model discloses the technical scheme who adopts does:
silicon-containing dust cleaning device of carbon fiber waste gas incineration back high temperature includes: the dust remover comprises a dust remover body and a dust removing mechanism; the dust remover body comprises a settling chamber, an air explosion pipe arranged in the settling chamber, a waste discharge fan arranged on the settling chamber and used for exhausting air and a waste discharge pipeline connected to the exhaust side of the waste discharge fan; the dust removal mechanism is connected to the waste discharge pipeline and comprises a first air inlet pipe connected to the waste discharge pipeline, a first control valve arranged on the first air inlet pipe, a dust remover connected to the other end of the air inlet pipe, a partition plate fixed in the dust remover, a filter element arranged on the partition plate, a solid discharge port arranged at the bottom of the dust remover, a back blowing pipe connected to the top of the dust remover, a gas pressure stabilizing tank connected to the other end of the back blowing pipe and an air outlet pipe connected to the side of the dust remover and positioned above the partition plate; and the back blowing air pipe and the air outlet pipe are respectively provided with a second control valve, and the dust removal mechanism is connected between the disconnected waste discharge pipelines in series through the air inlet pipe and the air outlet pipe.
The present invention may be further configured in a preferred embodiment as: and a plurality of groups of waste discharge fans corresponding to the settling chambers are connected to the waste discharge pipeline.
The present invention may be further configured in a preferred embodiment as: the opening of the filter element is positioned on the upper side of the partition plate.
The present invention may be further configured in a preferred embodiment as: the air inlet pipe is located on the lower side of the bottom of the filter element, and the air outlet pipe is located on the upper side of the top of the filter element.
The present invention may be further configured in a preferred embodiment as: and an on-off valve is arranged at the bottom of the solid discharge port.
The present invention may be further configured in a preferred embodiment as: the back blowing pipe comprises a plurality of groups corresponding to the filter element openings.
The present invention may be further configured in a preferred embodiment as: and the dust remover is also provided with a pressure detection meter, and the pressure detection meter is in signal connection with the gas pressure stabilizing tank.
The above technical scheme of the utility model has following profitable technological effect:
the utility model is directed to be big silk bundle carbon fiber carbonization waste gas burns the automatic clearance of back silica flour, compare with original manual cleaning, use manpower sparingly, safety and reliability, it can clear up to need not personnel to get into boiler inside, danger hidden danger has been avoided, staff's personal health has been guaranteed, can clear up after stopping simultaneously, it can overhaul the clearance to have avoided needing to fall the temperature to below 40 degrees, cleaning time has been saved, guarantee for driving in advance, the waste of the energy has been saved, the output is improved, and the production cost is reduced.
Drawings
Fig. 1 is a schematic diagram of a dust cleaning apparatus according to an embodiment of the present invention;
fig. 2 is a schematic cleaning diagram of a dust cleaning device according to an embodiment of the present invention;
fig. 3 is a schematic view of a dust collector body according to an embodiment of the present invention.
Reference numerals:
100. a dust remover body; 110. a settling chamber; 120. aerating the pipe; 130. a waste discharge fan; 140. a waste line;
200. a dust removal mechanism; 210. an air inlet pipe; 220. a first control valve; 230. a dust remover; 240. a partition plate; 250. a filter element; 260. arranging a solid port; 261. an on-off valve; 270. a blowback air pipe; 280. a gas surge tank; 290. an air outlet pipe; 291. and a second control valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Some embodiments of the present invention provide a carbon fiber waste gas incineration rear high-temperature silicon-containing dust cleaning apparatus, which is described below with reference to the accompanying drawings.
With reference to fig. 1-3, the utility model provides a silicon-containing dust cleaning device of carbon fiber waste gas incineration back high temperature, include: a dust remover body 100 and a dust removing mechanism 200;
the dust collector body 100 includes a settling chamber 110, an air blasting pipe 120 disposed in the settling chamber 110, a waste air discharging fan 130 mounted on the settling chamber 110 for discharging air, and a waste air discharging pipeline 140 connected to the air discharging side of the waste air discharging fan 130.
Specifically, a plurality of settling chambers 110 are connected to the dust removing mechanism 200, a group of dust removing mechanisms 200 can be used to remove dust from a plurality of dust remover bodies 100, each boiler is connected to a corresponding settling chamber 110, silicon powder settled in the settling chamber 110 is blown and floated in the air by using the air blasting pipe 120 after parking, and then the silicon powder is discharged into the dust removing mechanism 200 along the waste discharge pipeline 140 by using the waste discharge fan 130 for filtering.
Wherein, the dust removing mechanism 200 is connected to the waste discharging pipeline 140, the dust removing mechanism 200 comprises an air inlet pipe 210 connected to the waste discharging pipeline 140, a first control valve 220 arranged on the air inlet pipe 210, a dust remover 230 connected to the other end of the air inlet pipe 210, a partition plate 240 fixed in the dust remover 230, a filter core 250 arranged on the partition plate 240, a discharge port 260 arranged at the bottom of the dust remover 230, a back blowing pipe 270 connected to the top of the dust remover 230, a gas surge tank 280 connected to the other end of the back blowing pipe 270, and an air outlet pipe 290 connected to the side of the dust remover 230 and located above the partition plate 240, a second control valve 291 is respectively arranged on the back blowing pipe 270 and the air outlet pipe 290, and the dust removing mechanism 200 is connected in series between the disconnected waste discharging pipeline 140 by the air inlet pipe 210 and the air outlet pipe 290, the connection mode is that the original pipeline is disconnected, the air inlet side is connected with the air inlet pipe 210, and the other original pipeline is connected with the air outlet pipe 290, the dust removal mechanism 200 is connected to the waste discharge pipeline 140 for use, compressed air is connected to an inlet of the gas pressure stabilizing tank 280, a reverse blowing pipe 270 is connected to an outlet of the gas pressure stabilizing tank, and when the filter cake on the surface of the filter element 250 reaches a certain thickness, the filter pressure difference is monitored by a pressure detection meter and reaches a set value, reverse blowing cleaning operation is carried out.
Specifically, the opening of the filter element 250 is located on the upper side of the partition 240, so that the filtered gas flows upwards to the air outlet pipe 290 to be discharged after filtering the filter element 250, in addition, the air inlet pipe 210 is located on the lower side of the bottom of the filter element 250, and the air outlet pipe 290 is located on the upper side of the top of the filter element 250, so that dust in the waste gas can be conveniently and comprehensively contacted with the filter element 250, and the filtering effect is ensured.
Furthermore, the bottom of the solid discharge port 260 is provided with an on-off valve 261 which is opened when the filter element 250 is cleaned by back blowing, so that solid particles falling off from the filter element 250 can be discharged from the solid discharge port 260, and in addition, the back blowing pipe 270 comprises a plurality of groups corresponding to the openings of the filter element 250, so that gas can specifically enter the filter element 250 to impact and clean filter cakes outside the filter element.
On the other hand, the dust remover 230 is further provided with a pressure detection meter, the pressure detection meter is in signal connection with the gas pressure stabilizing tank 280, the pressure state in the dust remover 230 can be detected through the pressure detection meter, when the pressure exceeds a preset value, the obstruction caused by filter cakes on the outer side of the filter element 250 reaches the expectation and needs to be cleaned, then the gas pressure stabilizing tank 280 is controlled to blow back through a signal, meanwhile, the air inlet pipe 210 and the air outlet pipe 290 are closed, and the solid discharge port 260 is opened.
It should be noted that the blowback air pipe 270 is composed of a plurality of gas distribution pipes and gas accelerating pipes, so as to ensure uniformity of blowback, the temperature of the dust in the boiler after incineration is between 500 ℃ and 700 ℃, so as to ensure the temperature resistance requirement of the filter element 250, and the partition plate 240 and the filter element 250 are sealed by a soft sealing gasket made of the same material and having the temperature resistance of 800 ℃.
The filter element 250 is made of high-strength inorganic composite materials, the filter element 250 can resist high temperature of 800 ℃, strong acid, strong alkali and other chemical corrosion, the filtering efficiency is high, the concentration of dust in filtered gas can be less than 5mg/m3 and is far lower than the national emission standard, the filtering precision is high, the filtering efficiency of 1 micron is more than 99.9%, the filter element 250 is fibrous, the thermal shock resistance is good, the service life of the filter element 250 is long, the continuous use is more than 5 years, the porosity of the filter element 250 is 85-95%, the initial resistance is small, the online time of the system is long, the main body is made by roasting inorganic substances and silicon dioxide which are used as main raw materials, the strength, the filtering efficiency, the temperature resistance and other properties of the filter element are superior to those of a common ceramic filter element, because the inside of the filter element 250 is fibrous, the filter element is lighter than other ceramic filter elements, can not crack due to temperature change, has certain toughness, and can not be damaged under the condition of mechanical damage elimination, the weight of the dust collector is light, and the dust collector is light after dust is attached to the surface, so that the dust collector cannot be damaged due to the weight in use.
The utility model discloses a dust collector is simple and practical, utilizes former exhaust fan, at the parallelly connected dust removal mechanism 200 of entry, cuts into dust removal mechanism 200 when the production line parks and removes dust, has avoided artifical entering boiler inside to carry out the deashing, can clear up the deposition in the boiler fast, uses manpower sparingly, has avoided the operation environment that the temperature is high, the dust is big in the boiler, has shortened the clearance time, has improved the output of big silk bundle carbon fiber carbonization greatly, has extensive and important practical meaning.
The utility model discloses not only be applicable to 25K, 48K, 50K big silk bundles, also be applicable to the clearance of waste gas incineration processing silica flour in the exhaust-heat boiler in the various carbon fiber variety production processes between 50K ~ 100K.
The utility model discloses a theory of operation and use flow: firstly, silicon powder accumulated in a settling chamber of a boiler is blown up by an explosion pipe 120 and then is discharged into a dust remover 230 along a waste discharge pipeline 140 and an air inlet pipe 210 by a waste discharge fan 130, solid particles are retained on the outer surface of a filter element 250 through the screening action of the filter element 250, filtered clean gas is discharged from an air outlet pipe 290, when a pressure detection table detects that the internal pressure reaches a preset value, namely filter cake on the surface of the filter element 250 reaches a certain thickness, back blowing cleaning is carried out, in the back blowing process, the air inlet pipe 210 and the air outlet pipe 290 are closed, a discharge fixing port 260 is opened, back blowing gas is ejected from a back blowing pipe 270 through a gas pressure stabilizing tank 280 at a critical flow rate, local low pressure is formed between the air outlet of the back blowing pipe 270 and the opening of the filter element 250, part of filtered clean gas around the pipe orifice is guided into the filter element 250, and the filter cake on the outer surface of the filter element 250 is peeled together with the back blowing gas ejected from the air pipe 270, the reverse blow gas flows rapidly from the inner surface to the outer surface of the filter element 250, so that the filter cake on the outer surface of the filter element 250 is separated from the surface of the filter element 250 under the action of instantaneous reverse pressure difference, and the pressure difference between the inside and the outside of the filter element 250 is recovered, thereby completing the regeneration process.
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 claims and their equivalents.
Claims (7)
1. Silicon-containing dust cleaning device of carbon fiber waste gas incineration back high temperature, its characterized in that includes:
the dust remover body (100) comprises a settling chamber (110), an air explosion pipe (120) arranged in the settling chamber (110), a waste discharge fan (130) which is arranged on the settling chamber (110) and used for exhausting air, and a waste discharge pipeline (140) which is connected to the exhaust side of the waste discharge fan (130);
the dust removal mechanism (200) is connected to the waste discharge pipeline (140), and comprises an air inlet pipe (210) connected to the waste discharge pipeline (140), a first control valve (220) arranged on the air inlet pipe (210), a dust remover (230) connected to the other end of the air inlet pipe (210), a partition plate (240) fixed in the dust remover (230), a filter element (250) arranged on the partition plate (240), a solid discharge port (260) arranged at the bottom of the dust remover (230), a back blowing pipe (270) connected to the top of the dust remover (230), a gas pressure stabilizing tank (280) connected to the other end of the back blowing pipe (270), and an air outlet pipe (290) connected to the side of the dust remover (230) and located above the partition plate (240);
and the back blowing pipe (270) and the air outlet pipe (290) are respectively provided with a second control valve (291), and the dust removing mechanism (200) is connected between the disconnected waste discharge pipelines (140) in series through the air inlet pipe (210) and the air outlet pipe (290).
2. The carbon fiber waste gas incinerated high-temperature silicon-containing dust cleaning device according to claim 1, wherein a plurality of sets of waste discharge fans (130) corresponding to the settling chambers (110) are connected to the waste discharge pipeline (140).
3. The carbon fiber waste gas incinerated high-temperature silicon-containing dust cleaning device according to claim 1, wherein the opening of the filter element (250) is located on the upper side of the partition plate (240).
4. The carbon fiber waste gas burned high-temperature silicon-containing dust cleaning device as claimed in claim 1, wherein the air inlet pipe (210) is located at a lower side of the bottom of the filter element (250), and the air outlet pipe (290) is located at an upper side of the top of the filter element (250).
5. The carbon fiber waste gas incinerated high-temperature silicon-containing dust cleaning device according to claim 1, wherein the bottom of the solid discharge port (260) is provided with an on-off valve (261).
6. The carbon fiber waste gas burned high-temperature silicon-containing dust cleaning device as claimed in claim 1, wherein the blowback pipe (270) comprises a plurality of sets corresponding to the openings of the filter element (250).
7. The carbon fiber waste gas incinerated high-temperature silicon-containing dust cleaning device according to claim 1, wherein a pressure detection meter is further arranged on the dust remover (230), and the pressure detection meter is in signal connection with the gas surge tank (280).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221278948.XU CN217410217U (en) | 2022-05-25 | 2022-05-25 | Carbon fiber waste gas burns back high temperature siliceous dust cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221278948.XU CN217410217U (en) | 2022-05-25 | 2022-05-25 | Carbon fiber waste gas burns back high temperature siliceous dust cleaning device |
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| CN217410217U true CN217410217U (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221278948.XU Active CN217410217U (en) | 2022-05-25 | 2022-05-25 | Carbon fiber waste gas burns back high temperature siliceous dust cleaning device |
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| CN (1) | CN217410217U (en) |
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2022
- 2022-05-25 CN CN202221278948.XU patent/CN217410217U/en active Active
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