CN202289726U - Burning-proof, explosion-proof and anticorrosive bag type dust removing device for drying lignite - Google Patents
Burning-proof, explosion-proof and anticorrosive bag type dust removing device for drying lignite Download PDFInfo
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- CN202289726U CN202289726U CN2011203983020U CN201120398302U CN202289726U CN 202289726 U CN202289726 U CN 202289726U CN 2011203983020 U CN2011203983020 U CN 2011203983020U CN 201120398302 U CN201120398302 U CN 201120398302U CN 202289726 U CN202289726 U CN 202289726U
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- ash bucket
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- flue gas
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Abstract
The utility model provides a burning-proof, explosion-proof and anticorrosive bag type dust removing device for drying lignite. By using the dust removing device, the explosion proofing and the explosion venting can be achieved; the acid corrosion is prevented; the spontaneous combustion of fume is prevented; the air leakage is stopped to control an oxygen content; the purification precision is high; and the dust removing device has higher filtration load capacity and has continuous working capacity. The dust removing device comprises a cylindrical box body and a conical ash bucket; the cylindrical box body is divided into an upper box body and a middle box body; the conical ash bucket is positioned at the bottom of the middle box body; and a fume inlet is arranged at the joint of the lower part of the middle box body and the conical ash bucket. The dust removing device is characterized in that the lower part of the middle box body and the outer wall of the middle box body are connected with an explosion venting valve device; the explosion venting valve device comprises an explosion venting valve pipe section; one end of the pipe section is connected with the wall of the middle box body; the other end of the pipe section is connected with a lower clamp; one end of an upper clamp is connected with a heavy punch explosion venting gate; the upper clamp is connected with the lower clamp by using a bolt; an explosion membrane is arranged between the upper clamp and the lower clamp; and the outer surface of the conical ash bucket is provided with a heat-tracing heat insulating device.
Description
Technical field
The utility model relates to and utilizes exhaust dust device with bag, purifies the brown coal flue gas of inflammable and explosive and cold end corrosion in the negative pressure production system, is specially the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention.
Background technology
Brown coal have volatile, moisture height, the characteristics that sulfur-bearing is high, coal powder collection and smoke eliminator that at present domestic brown coal drying adopts comprise electric cleaner and two kinds of forms of sack cleaner basically.But electric cleaner " static " is one of factor that causes the brown coal blast, so its explosion precaution requirement is tight, but often because technical conditions are not enough, misoperation causes the casing blast easily, and electric cleaner is lower to the detergent power of flue gas; Because brown coal have volatile, moisture height, sulfur-bearing is high, it is inflammable and explosive perishable with low temperature, must possess 1. explosion-proof venting of dust explosion so handle the equipment of dry brown coal flue gas under the negative pressure; 2. prevent acid corrosion; 3. prevent the flue gas spontaneous combustion; 4. stop the control oxygen making amount that leaks out; 5. higher filtration load-bearing capacity and the ability that possesses continuity work are arranged, and conventional sack cleaner is to satisfy these requirements.
Summary of the invention
There are the problems referred to above to prior art; The utility model provides the brown coal drying burn-proof and explosion prevention anticorrosion exhaust dust device with bag; Can satisfy explosion-proof venting of dust explosion, prevent acid corrosion, prevent the flue gas spontaneous combustion, the control oxygen making amount of stopping to leak out, higher filtration load-bearing capacity and the ability that possesses continuity work arranged, it is high to purify precision.
Its technical scheme is such:
It comprises drum type brake casing, taper ash bucket, and said drum type brake casing is divided into upper box, middle casing, and said taper ash bucket is arranged in said bottom half; In said, with said taper ash bucket junction smoke inlet is set below the casing; It is characterized in that: lower box, said middle cabinet exterior connect the explosion venting valve device in said, and said explosion venting valve device comprises the explosion venting valve pipeline section, and an end of said pipeline section connects said middle box body wall; The other end of said pipeline section connects lower gripper; One end of last clamper connects the weight explosion relief door, and said going up between clamper, the lower gripper connects with bolt, and described going up between clamper and the lower gripper is provided with quick-fried diaphragm; Outer surface at said taper ash bucket is provided with the tracing thermal-insulating device.
It is further characterized in that: said tracing thermal-insulating device comprises heat(ing) coil; Said heat(ing) coil is along the conical external surface of said taper ash bucket, setting from top to bottom; Said heat(ing) coil linkage function valve; At the outer setting insulation face and the colored steel of said heat(ing) coil, said insulation face and colored steel pass through bolt in said taper ash bucket; Flue gas buffering uniform distribution device is set in said smoke inlet, and said flue gas buffering uniform distribution device comprises the flue gas mozzle, and said its upper lateral part of flue gas mozzle interlude and following side are opened wide, and said flue gas mozzle interlude is fitted with the backstop plate; Said backstop plate comprises the plate body, and said plate body is provided with through hole, and said number of openings is a plurality of being distributed on the said plate body; Said plate body top and bottom are installed on upper lateral part and the following side that said flue gas mozzle opens wide respectively; Above the cinder-discharging port of the bottom of said taper ash bucket, said taper ash bucket, be provided with ash bucket fluidisation distribution apparatus, said ash bucket fluidisation distribution apparatus is the fluidisation distribution grid; Said upper box top all seals, and manhole door is vertical, and in limit, said raising middle flask side, said manhole door is a workpiece through bolt, and quantity is two; Parallel connection again after said casing is connected through same flue gas flexible pipe and same pure qi (oxygen) flexible pipe by a plurality of unit boxs.
The utility model adopts after the said structure, and its beneficial effect is:
1. in connecting the explosion venting valve device of cabinet exterior under negative pressure, carry out, pressure release under the pressure-fired; Promptly when the tank pressure superelevation; Flue gas passes quick-fried diaphragm and pushes weight explosion relief door realization pressure release open; The weight explosion relief door is closed under the effect of gravity automatically after the pressure release, prevents air penetration, therefore makes the utility model possess explosion-proof, venting of dust explosion function;
2. the heat(ing) coil of taper ash bucket outer surface installation feeds steam medium through duty valve; Insulation face that it is outside and colored steel constitute insulating and distribute to prevent thermal source, and this improvement can prevent that casing, filter bag and filter bag framework from corroding below acid dew-point temperature;
3. inlet flue gas passes through to make progress, shunt downwards behind unlimited upper lateral part and the following side in the flue gas mozzle; Pass through the porous web plate of backstop plate again; Can reduce flue gas pressures; And will feed that flue gas distributes with the interior coal dust amount of ash bucket equably in a plurality of unit boxs, and guaranteed the equilibrium of each unit box treating capacity, also be to prevent one of spontaneous combustion of pulverized coal and explosion-proof measure; In addition; The cinder-discharging port top of taper ash bucket is provided with ash bucket fluidisation distribution grid, and the fluidisation source of the gas adopts nitrogen, can the nitrogen of certain pressure be divided equally the formation gas-bearing formation; After the dust of taper ash bucket fully mixes; Form certain fluidity again, help to unload the smooth dust stratification place coal dust generation smouldering that also can prevent of ash, also can utilize it to carry out inerting ash bucket flue gas when overhauling simultaneously;
4. the upper box top all seals, and makes attemperator be guaranteed more easily, and manhole door is the vertical limit, raising middle flask side that is arranged at; Filter bag can be changed in air-purifying chamber; Stopped the spontaneous combustion of pulverized coal phenomenon that produces because of leaking out, having avoided prior art upper box top is the top cap type manhole door, on take off and cover that sealing is not enough, quantity is many; Air leak rate of air curtain is very high under suction function, oxygen amount defective rambunctious;
5. adopt the drum type brake casing withstand voltage evenly; A plurality of unit boxs are through same flue gas flexible pipe and same pure qi (oxygen) flexible pipe series, parallel; Can eliminate casing swelling stress and wind load, make the utility model possess higher filtration load-bearing capacity and continuous performance demands, purification precision height.
Description of drawings
Fig. 1 is the utility model front view;
Fig. 2 is the utility model left view;
Fig. 3 is an explosion venting valve device enlarged diagram;
Fig. 4 is flue gas buffering uniform distribution device enlarged diagram;
Fig. 5 is the A-A view enlarged drawing of Fig. 4;
Fig. 6 is a backstop plate structure enlarged diagram.
The specific embodiment
See Fig. 1, Fig. 2, the utility model comprises drum type brake casing, taper ash bucket 1, and the drum type brake casing is divided into upper box 3, middle casing 4; Upper box 3 tops all seal, and manhole door 2 is vertical, through bolt in middle casing 4 sides; Manhole door 2 is a workpiece, and quantity is two, and taper ash bucket 1 is arranged in casing 4 bottoms; Taper ash bucket 1 inner wall smooth storage ash is even, and coal dust is difficult for building bridge and is convenient to unload ash, below middle casing 4, with taper ash bucket 1 junction smoke inlet 5 is set; Flue gas buffering uniform distribution device 6 is set in smoke inlet 5, and flue gas buffering uniform distribution device 6 comprises flue gas mozzle 6-1, and flue gas mozzle 6-1 interlude its upper lateral part 6-1a and following side 6-1b open wide; Flue gas mozzle 6-1 interlude is fitted with backstop plate 6-2, and backstop plate 6-2 comprises plate body 6-2a, and plate body 6-2a is provided with through hole 6-2b; The quantity of through hole 6-2b is a plurality of being distributed on the plate body 6-2a, and plate body 6-2a top and bottom are installed on upper lateral part 6-1a and the following side 6-1b (seeing Fig. 4, Fig. 5, Fig. 6) that flue gas mozzle 6-1 opens wide respectively, at the outer surface of taper ash bucket 1 the tracing thermal-insulating device is set; The tracing thermal-insulating device comprises heat(ing) coil 7-1, and heat(ing) coil 7-1 is along the conical external surface of taper ash bucket 1, setting from top to bottom, heat(ing) coil 1 linkage function valve 7-2; Outer setting insulation face and colored steel (not providing among insulation face and the colored steel figure) at heat(ing) coil 7-1; Insulation face and colored steel in taper ash bucket 1, are provided with ash bucket fluidisation distribution apparatus 9 through bolt above the cinder-discharging port 8 of the bottom of taper ash bucket 1, taper ash bucket 1, ash bucket fluidisation distribution apparatus 9 is the fluidisation distribution grid; In middle casing 4 bottoms, middle casing 4 outer walls connect explosion venting valve device 10; Explosion venting valve device 10 (see figure 3)s comprise explosion venting valve pipeline section 10-1, casing 4 outer walls during the end of pipeline section 10-1 connects; The other end of pipeline section 10-1 connects lower gripper 10-2; The end of last clamper 10-3 connects weight explosion relief door 10-4, connects with bolt 10-6 between last clamper 10-3, the lower gripper 10-2, is provided with quick-fried diaphragm 10-5 between last clamper 10-3 and the lower gripper 10-2; Parallel connection again after casing is connected through same flue gas flexible pipe (not providing the flue gas flexible pipe among the figure) and same pure qi (oxygen) flexible pipe 11 by a plurality of unit boxs, the quantity of unit box can be used according to the flexible in size ground of exhaust gas volumn.
Claims (8)
1. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention; It comprises drum type brake casing, taper ash bucket, and said drum type brake casing is divided into upper box, middle casing, and said taper ash bucket is arranged in said bottom half; In said, with said taper ash bucket junction smoke inlet is set below the casing; It is characterized in that: lower box, said middle cabinet exterior connect the explosion venting valve device in said, and said explosion venting valve device comprises the explosion venting valve pipeline section, and an end of said pipeline section connects said middle box body wall; The other end of said pipeline section connects lower gripper; One end of last clamper connects the weight explosion relief door, and said going up between clamper, the lower gripper connects with bolt, and described going up between clamper and the lower gripper is provided with quick-fried diaphragm; Outer surface at said taper ash bucket is provided with the tracing thermal-insulating device.
2. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 1; It is characterized in that: said tracing thermal-insulating device comprises heat(ing) coil; Said heat(ing) coil is along the conical external surface of said taper ash bucket, setting from top to bottom; Said heat(ing) coil linkage function valve, at the outer setting insulation face and the colored steel of said heat(ing) coil, said insulation face and colored steel pass through bolt in said taper ash bucket.
3. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 1; It is characterized in that: flue gas buffering uniform distribution device is set in said smoke inlet; Said flue gas buffering uniform distribution device comprises the flue gas mozzle; Said its upper lateral part of flue gas mozzle interlude and following side are opened wide, and said flue gas mozzle interlude is fitted with the backstop plate.
4. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 3 is characterized in that: said backstop plate comprises the plate body, and said plate body is provided with through hole, and said number of openings is a plurality of being distributed on the said plate body.
5. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 4 is characterized in that: said plate body top and bottom are installed on upper lateral part and the following side that said flue gas mozzle opens wide respectively.
6. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 1; It is characterized in that: above the cinder-discharging port of the bottom of said taper ash bucket, said taper ash bucket, be provided with ash bucket fluidisation distribution apparatus, said ash bucket fluidisation distribution apparatus is the fluidisation distribution grid.
7. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 1; It is characterized in that: said upper box top all seals, and manhole door is vertical, through bolt in limit, said raising middle flask side; Said manhole door is a workpiece, and quantity is two.
8. the anticorrosion exhaust dust device with bag of brown coal drying burn-proof and explosion prevention according to claim 1 is characterized in that: parallel connection again after said casing is connected through same flue gas flexible pipe and same pure qi (oxygen) flexible pipe by a plurality of unit boxs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203983020U CN202289726U (en) | 2011-10-19 | 2011-10-19 | Burning-proof, explosion-proof and anticorrosive bag type dust removing device for drying lignite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203983020U CN202289726U (en) | 2011-10-19 | 2011-10-19 | Burning-proof, explosion-proof and anticorrosive bag type dust removing device for drying lignite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289726U true CN202289726U (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203983020U Withdrawn - After Issue CN202289726U (en) | 2011-10-19 | 2011-10-19 | Burning-proof, explosion-proof and anticorrosive bag type dust removing device for drying lignite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389672A (en) * | 2011-10-19 | 2012-03-28 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN108499251A (en) * | 2018-04-25 | 2018-09-07 | 浙江洁宇环保装备科技有限公司 | The special explosion-proof type sack cleaner of underground coal mine |
| CN110064255A (en) * | 2017-10-19 | 2019-07-30 | 金妙英 | One kind being convenient for clean pocket type air dust remover |
-
2011
- 2011-10-19 CN CN2011203983020U patent/CN202289726U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389672A (en) * | 2011-10-19 | 2012-03-28 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN102389672B (en) * | 2011-10-19 | 2015-06-03 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN110064255A (en) * | 2017-10-19 | 2019-07-30 | 金妙英 | One kind being convenient for clean pocket type air dust remover |
| CN110064255B (en) * | 2017-10-19 | 2021-06-08 | 山东域潇锆钛矿业股份有限公司 | Bag type air dust collector convenient to clean |
| CN108499251A (en) * | 2018-04-25 | 2018-09-07 | 浙江洁宇环保装备科技有限公司 | The special explosion-proof type sack cleaner of underground coal mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |