CN103752090B - A kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters - Google Patents
A kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters Download PDFInfo
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- CN103752090B CN103752090B CN201410023372.6A CN201410023372A CN103752090B CN 103752090 B CN103752090 B CN 103752090B CN 201410023372 A CN201410023372 A CN 201410023372A CN 103752090 B CN103752090 B CN 103752090B
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Abstract
The invention discloses a kind of hot precipitator with preventing the grey sealing device that cryogenic gas enters, comprise up and down the deduster of arranging ash bucket, unload grey chamber and ash conveying device, the gray columns of keeping certain height in described ash bucket, described ash bucket and unload between grey chamber and be provided with seal valve, described ash conveying device comprises the deashing mechanism in ash conveying pipe and ash conveying pipe. Described gray columns is not only for tight dense state, and described gray columns forms certain pressure intensity in described ash bucket bottom, and ingeniously utilizes the dust that in-house facility has to seal, and turns waste into wealth, play the good cryogenic gas that prevents and enter the technique effect of deduster, improved utilization rate of equipment and installations.
Description
Technical field
The invention belongs to deduster ash-discharging device technical field, particularly a kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters.
Background technology
At present, often produce high-temperature dusty gas in industries such as chemical industry, oil, metallurgy, deduster is a kind of most important dust collecting process equipment. be applied in deduster in special flue gas operating mode (as containing coal gas etc.) very high because needs keep hot conditions to require air-tightness, wherein unload grey position and be one of emphasis that air-tightness need to ensure. the grey mode of unloading of current employing is hand operated gate valve and electric lock pneumatic device, in processing special flue gas operating mode, the grey mode of unloading of this deduster is hand operated gate valve and electric lock pneumatic device, the grey mode of unloading of this combination is one to deduster and mainly leaks out a little, deduster entirety air-tightness can not be guaranteed, and equipment operation exists potential safety hazard. particularly in the efficient equipment of processing of present coalification gas, along with technique need and technology innovation stricter to insulation of equipment and seal request, due to tar ingredients in coalification gas, meeting cold meeting condenses, in existing dry method high temperature dust collecting process, often can select cyclone dust collectors, filter core pipe precipitator, one or more in electric cleaner or fiber bag precipitator are used in conjunction with, once but tar ingredients enters and will cause filter core shutoff in deduster body (coal tar stops up filter core duct in the time that ash is unloaded in dedusting in coalification gas, and be difficult to remove), the phenomenon that electrode condenses or deduster inwall dust accumulation difficulty is removed, therefore the problem that anti-cryogenic gas enters for unloading ash when has become these those skilled in the art technical barrier urgently to be resolved hurrily. CN202414801U discloses a kind of deduster ash-discharging device, the first pneumatic operated valve and second pneumatic operated valve of the hand operated gate valve that comprises ash bucket, be connected with ash bucket, intermediate bin, asynchronous action, described the first pneumatic operated valve is connected with the import of intermediate bin, described the second pneumatic operated valve is connected with the outlet of intermediate bin, and described the first pneumatic operated valve is also connected with hand operated gate valve. above-mentioned deduster arranges pneumatic operated valve and an intermediate bin of two asynchronous actions with ash-discharging device, make ash first enter intermediate bin by the first pneumatic operated valve, after closing again the first pneumatic operated valve, open the second pneumatic operated valve, ash is discharged, ensure and can not produce the situation of leaking out unloading deduster in grey process, feasible on principle design, but in actual use procedure, exist following defect: 1) normal operation can produce a large amount of deposition dusts, unloading a large amount of accumulation of the dust piece unloading in grey intermediate bin needs to shift, and that grey speed is unloaded in deadweight is slow, get rid of not thorough, 2) close poor effect at high-temperature and high-pressure conditions lower valve, often have the situation fitting badly, effectively performance difficulty, therefore, need badly and unload grey anti-cryogenic gas at deduster and make further improvement and bring new ideas aspect entering, guarantee equipment security of operation.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, provide that a kind of security performance is high, good sealing effect, deashing easily hot precipitator with preventing the grey sealing device that cryogenic gas enters.
For achieving the above object, the technical solution used in the present invention is: a kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters, comprise the deduster of arranging up and down ash bucket, unload grey chamber and ash conveying device, the gray columns of keeping certain height in described ash bucket.
Described ash bucket and unload between grey chamber and be provided with seal valve.
Described ash conveying device comprises the deashing mechanism in ash conveying pipe and ash conveying pipe.
Described deashing mechanism is spiral pushing mechanism, and described ash conveying pipe is set to angled straight lines formula, and angle of inclination is 0 ~ 30 °.
Described ash conveying pipe is set to annular, and described deashing mechanism is scraping machine, and described scraping machine comprises the some scraping blades that arrange on drive unit, soft belt and soft belt, the driving member that the setting of described drive unit output is connected with described scraping blade.
The described lower openings place, grey chamber of unloading is provided with check valve or unloads the grey diaphragm structure of unloading of grey chamber with connecting by elastomer.
In described ash bucket, be provided with crisscross solid grey net.
Described grey chamber one side of unloading arranges air inlet pipe, keeps oxygen content < 1% in air inlet pipe.
Described air inlet pipe connects boiler waste gas or normal temperature source of the gas.
Described deduster is cyclone dust collectors or filter core pipe precipitator or electric cleaner or fiber bag precipitator.
The present invention includes the ash bucket of arranging up and down, unload grey chamber and ash conveying device, in wherein said ash bucket, be formed with the gray columns of certain altitude, described gray columns is not only in tight dense state, and described gray columns forms certain pressure intensity in described ash bucket bottom, described under normal service condition, unload ash indoor in full grey state, in addition carry the ash conveying device of dust to have compared with the effect of big-length and ash sealing, effectively prevent from forming low-temperature airflow, realize the technique effect of grey sealing, deashing mechanism by described ash conveying device in the time of ash disposal shifts the dust in ash conveying pipe, discharge, wherein, described ash conveying pipe can be chosen as various ways, the linear structure that described in the first, ash conveying pipe is arranged horizontally, described deashing device is spiral pushing mechanism, preferably, described ash conveying device is set to angled straight lines formula, and angle of inclination is 0 ~ 30 °, effectively avoid occurring that gas is detained, and keeps in described ash conveying device in grey sealing state in described dust, described ash conveying pipe also can be set to annular, described deashing device is the scraping machine that adapts to described ash conveying pipe, wherein, described scraping machine comprises the some scraping blades that arrange on drive unit, soft belt and soft belt, described drive unit output is connected with described scraping blade by driving member, utilizing described soft belt to drive described scraping blade to promote dust in ash conveying device advances, and form stable loop, particularly the ash inlet of described annular ash conveying device is in low level, more can effectively form dust seal region, prevent that cryogenic gas from entering in deduster, further, between the described ash bucket that unloads grey chamber and deduster, seal valve is set respectively, the seal valve that unloads top, grey chamber described under normal operating conditions is in closed condition, and deposition dust accumulation is in ash bucket bottom, the gray columns of keeping certain height, described in to unload ash indoor be full grey state, in the time that needs unload ash, described in opening, unload the seal valve between grey chamber and ash bucket, start described spiral pushing mechanism or described scraping machine, just can continue easily to push ahead being delivered at a distance, be convenient to subsequent treatment, in order better to remove the dust in described ash conveying device, in described grey chamber one side of unloading, air inlet pipe is set, utilize the pressure of input gas further to promote the outside transport of dust, in air inlet pipe, keep oxygen content < 1%, improve device security performance, avoid the potential safety hazard that in deduster, fuel gas exists, described air inlet pipe connects boiler waste gas or normal temperature source of the gas, with low cost, require lower to pipeline and air feed equipment, easy to prepare, under the promotion of the gas of normal temperature, dust stratification can enter described ash conveying device by described excretory duct smoothly, drainage rate is fast, cleaning effect is good, efficiency is high, described in closing, unload grey chamber and the middle seal valve of ash bucket in the time opening external source of the gas, because deduster inside is hot environment, in addition valve technology limits described seal valve and can produce small leakage in HTHP situation at present, so the pressure that utilizes described gray columns to cause in air inlet pipe described in the counteracted by pressure of seal valve place generation ingenious changes, can keep described seal valve upper and lower side pressure reduction to change less, seal isolation is effective, when avoiding boiler waste gas particularly to adopt low temperature source of the gas, gas enters deduster inside by seal valve, avoid cryogenic gas to enter the problem of a series of equipment damages of generation, as filter core shutoff, the phenomenon that electrode condenses or deduster inwall dust accumulation difficulty is removed, improve the cycle of equipment safety operation, increase the benefit to greatest extent, in described ash bucket, be provided with crisscross solid grey net, improved the degree of condensing of dust in ash bucket, increase globality, the raising impact resistance of described gray columns, avoid slight pressure to change and just produce phenomenon defeated and dispersed, that fly upward, be provided with check valve or unload grey dividing plate at the described lower openings place, grey chamber of unloading, only have gray columns height higher than setting height scope in the situation that described seal valve is opened time, describedly unload grey dividing plate and open, dust moves downward to enter and unloads grey chamber, and ambient atmos is difficult to enter, well protect the variation of deduster internal temperature.
Deduster of the present invention is cyclone dust collectors or filter core pipe precipitator or electric cleaner or fiber bag precipitator, technique scheme all can be implemented in the ash bucket position of various dedusters above, play the good cryogenic gas that prevents and enter the technique effect of deduster, and ingeniously utilize the dust that in-house facility has to seal, turn waste into wealth, improved utilization rate of equipment and installations. Modern design of the present invention is ingenious, can realize deduster safely, easily and unload ash, and universality is strong, and integral replacing is convenient, has good value for applications.
Figure of description
Below in conjunction with accompanying drawing, the present invention is further detailed:
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the partial structurtes schematic diagram of the embodiment of the present invention two scraping machines;
Fig. 3 is the structural representation of the embodiment of the present invention three;
Fig. 4 is the structural representation of the embodiment of the present invention four;
Fig. 5 is the structural representation of the embodiment of the present invention five.
Specific embodiment
Embodiment mono-
As shown in Figure 1, a kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters, comprise the deduster of arranging up and down ash bucket 1, unload grey chamber 2 and ash conveying device, the gray columns 3 of keeping certain height in described ash bucket 1; Described ash conveying device comprises the deashing mechanism in ash conveying pipe 4 and ash conveying pipe 4, and wherein said deashing mechanism is spiral pushing mechanism 5, and described ash conveying pipe 4 is set to angled straight lines formula, and angle of inclination is 0 ~ 30 °.
Embodiment bis-
As shown in Figure 2, be with the difference of embodiment mono-: described ash conveying pipe 4 is set to annular, described deashing mechanism is scraping machine, described scraping machine comprises the some scraping blades 7 that arrange on drive unit, soft belt 6 and soft belt 6, scraping blade 7 is set to ring segment, the driving member 8 that the setting of described drive unit output is connected with described scraping blade 7, the ash inlet of described annular ash conveying device is in low level.
Embodiment tri-
As shown in Figure 3, and the difference of embodiment mono-or two be: described ash bucket 1 and unload between grey chamber 2 and be provided with seal valve 9.
Embodiment tetra-
As shown in Figure 4, be with the difference of embodiment tri-: described in unload 2 lower openings places, grey chamber and be provided with check valve or unload grey diaphragm structure, described in unload grey diaphragm structure and comprise that elastomer 10, pull bar 11, upset dividing plate 12 and reverse block 13 form.
Embodiment five
As shown in Figure 5, and the difference of embodiment mono-or two be: described ash bucket 1 and unload between grey chamber 2 and be provided with seal valve 9; In described ash bucket 1, be provided with crisscross solid grey net 14; Described grey chamber 2 one sides of unloading arrange air inlet pipe 15, interior maintenance oxygen content < 1% of air inlet pipe 15; Described air inlet pipe 15 connects boiler waste gas or normal temperature source of the gas, in described air inlet pipe 15, check valve 16 is set.
Deduster of the present invention can be cyclone dust collectors or filter core pipe precipitator or electric cleaner or fiber bag precipitator, technique scheme all can be implemented in the ash bucket position of various dedusters above, play the good cryogenic gas that prevents and enter the technique effect of deduster, and ingeniously utilize the dust that in-house facility has to seal, turn waste into wealth, improved utilization rate of equipment and installations. Modern design of the present invention is ingenious, can realize deduster safely, easily and unload ash, and universality is strong, and integral replacing is convenient, has good value for applications.
Claims (8)
1. hot precipitator, with preventing the grey sealing device that cryogenic gas enters, is characterized in that: comprise upper and lower clothThe ash bucket of the deduster of putting, unload grey chamber and ash conveying device, the gray columns of keeping certain height in described ash bucket, instituteState and unload lower openings place, grey chamber and arrange and unload grey diaphragm structure, described in unload grey diaphragm structure comprise elastomer, pull bar,Upset dividing plate and reverse block composition, described elastomeric one end connects upset dividing plate, other end cylinder lever connecting rod;Describedly unload grey diaphragm structure and realize the process of automatic ash-discharging and be, when gray columns height is during higher than setting height scope,The gravity of dust forces upset dividing plate to be opened, and after dust stratification falls, upset dividing plate is in elastomeric pulling force effectUnder get back to reverse block place, close because reverse block stops, and performance to unloading the sealing function of grey chamber.
2. hot precipitator is with preventing the grey sealing device that cryogenic gas enters as claimed in claim 1, and its feature existsIn: described ash bucket with unload between grey chamber and be provided with seal valve.
3. hot precipitator is used and is prevented the grey sealing device that cryogenic gas enters, its feature as claimed in claim 1 or 2Be: described ash conveying device comprises the deashing mechanism in ash conveying pipe and ash conveying pipe.
4. hot precipitator is with preventing the grey sealing device that cryogenic gas enters as claimed in claim 3, and its feature existsIn: described ash conveying pipe is set to angled straight lines formula, and described deashing mechanism is spiral pushing mechanism, inclination angleDegree is 0～30 °.
5. hot precipitator is with preventing the grey sealing device that cryogenic gas enters as claimed in claim 3, and its feature existsIn: described ash conveying pipe is set to annular, and described deashing mechanism is scraping machine, and described scraping machine comprises drivingThe some scraping blades that arrange on device, soft belt and soft belt, described drive unit output arranges and instituteState the driving member that scraping blade connects.
6. hot precipitator is with preventing the grey sealing device that cryogenic gas enters as claimed in claim 1, and its feature existsIn: in described ash bucket, be provided with crisscross solid grey net.
7. hot precipitator is with preventing the grey sealing device that cryogenic gas enters as claimed in claim 2, and its feature existsIn: described in unload grey chamber one side air inlet pipe be set, in air inlet pipe, keep oxygen content < 1%, described air inlet pipe connects potFurnace exhaust or normal temperature source of the gas.
8. hot precipitator is used and is prevented the grey sealing device that cryogenic gas enters, its feature as claimed in claim 1 or 2Be: described deduster is cyclone dust collectors or filter core pipe precipitator or electric cleaner or fiber bag precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023372.6A CN103752090B (en) | 2014-01-20 | 2014-01-20 | A kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023372.6A CN103752090B (en) | 2014-01-20 | 2014-01-20 | A kind of hot precipitator is with preventing the grey sealing device that cryogenic gas enters |
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| CN103752090A CN103752090A (en) | 2014-04-30 |
| CN103752090B true CN103752090B (en) | 2016-05-25 |
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| CN108039253B (en) * | 2017-12-11 | 2020-08-18 | 湖南顶立科技有限公司 | Enameled wire depainting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201389407Y (en) * | 2009-04-28 | 2010-01-27 | 天立环保工程股份有限公司 | Closed type dust discharging device for high-temperature gas purifying and recycling |
| CN201558626U (en) * | 2009-10-09 | 2010-08-25 | 沈阳东和环保有限公司 | Gas dry-process safety cloth bag dust remover |
| WO2013066657A2 (en) * | 2011-10-31 | 2013-05-10 | Donaldson Company, Inc. | Air filter assembly |
| CN203899314U (en) * | 2014-01-20 | 2014-10-29 | 河南龙成煤高效技术应用有限公司 | Ash sealing device used on high-temperature dust remover for preventing entering of low-temperature gas |
-
2014
- 2014-01-20 CN CN201410023372.6A patent/CN103752090B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201389407Y (en) * | 2009-04-28 | 2010-01-27 | 天立环保工程股份有限公司 | Closed type dust discharging device for high-temperature gas purifying and recycling |
| CN201558626U (en) * | 2009-10-09 | 2010-08-25 | 沈阳东和环保有限公司 | Gas dry-process safety cloth bag dust remover |
| WO2013066657A2 (en) * | 2011-10-31 | 2013-05-10 | Donaldson Company, Inc. | Air filter assembly |
| CN203899314U (en) * | 2014-01-20 | 2014-10-29 | 河南龙成煤高效技术应用有限公司 | Ash sealing device used on high-temperature dust remover for preventing entering of low-temperature gas |
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| CN103752090A (en) | 2014-04-30 |
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