CN201728020U - Biomass ash bag dust collector - Google Patents
Biomass ash bag dust collector Download PDFInfo
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- CN201728020U CN201728020U CN2010202437975U CN201020243797U CN201728020U CN 201728020 U CN201728020 U CN 201728020U CN 2010202437975 U CN2010202437975 U CN 2010202437975U CN 201020243797 U CN201020243797 U CN 201020243797U CN 201728020 U CN201728020 U CN 201728020U
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- ash
- bag
- living beings
- sack cleaner
- filter bag
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Abstract
The utility model discloses a biomass ash bag dust collector, which comprises an upper box, a middle box and a lower box. A gas inlet passage communicated with a dusty gas inlet is arranged inside the middle box; a plurality of bag cages communicated with the gas inlet passage are separately arranged above the gas inlet passage inside the middle box; a filter bag is placed into each bag cage which is communicated with a purified gas outlet by the aid of an outlet valve and communicated with a pulse valve arranged inside the upper box by the aid of a spray pipe; and an ash bucket for discharging ash is arranged inside the lower box. The biomass ash bag dust collector adopts alternate offline chambered pulse ash removal, the whole dust collector is divided into a plurality of chambers (the bag cages) connected with an air outlet pipe by the aid of valves, and the valve of one chamber in ash removal is closed so that the chamber is offline. The pulse valve sprays compressed air to the filter bags by the aid of the spray pipes, and the valve of the chamber is opened after blowing ash removal is finished. Similarly, ash of all the chambers of the whole dust collector is removed, so that the dust collector solves the problem of difficult ash removal in biomass boiler running.
Description
Technical field
The utility model relates to dust arrester, relates in particular to a kind of living beings ash sack cleaner of biomass fired boiler.
Background technology
Because urban environmental protection pressure increases, and is also very strict to the requirement of boiler soot emission amount, boiler mainly adopts living beings ash sack cleaner as dust arrester at present.Living beings ash sack cleaner is a kind of dry type dust filtration device.After filtrate uses a period of time, because effects such as sieving, collision, delay, diffusion, static, one deck dust has been gathered on the filter bag surface, this layer dust is called bonding layer, in this later motion process, bonding layer has become the main filter course of filtrate, relies on the effect of bonding layer, and the filtrate that mesh is bigger also can obtain high filtration efficiency.Along with dust the gathering of filter material surface, the efficient of deduster and resistance all increase accordingly, when the pressure differential of filtrate both sides is very big, can some attached to the tiny grit extruding on the filtrate in the past dust collector efficiency be descended.In addition, the too high meeting of the resistance of deduster significantly descends the air quantity of dust pelletizing system.Therefore, after the resistance of deduster reaches certain numerical value, timely deashing.Can not destroy bonding layer during deashing, in order to avoid decrease in efficiency.
Chinese patent 200820211342 discloses a kind of living beings ash sack cleaner, and it comprises dust arrester and reaction promoter generator; Dust arrester comprises deduster body and ash bucket; The air inlet that the ash bucket sidewall is provided with is connected with admission line; The sidewall on deduster body top is provided with the gas outlet, and the intrinsic cross section of deduster is provided with demarcation strip, and the filter cage has been installed in the installing hole on the demarcation strip, and the filter cage all is set with dust-removal cloth-bag outward; The reaction promoter generator comprises calcium hydroxide storage tank and reaction promoter storage tank, the calcium hydroxide storage tank is connected with threeway with the conveying worm of reaction promoter storage tank bottom, threeway is connected with the pharmacy response injector, the jet of pharmacy response injector is connected with the drug delivery pipeline, medicament ejector pipeline one end is connected with Roots blower, and the other end is connected with admission line.This living beings ash sack cleaner can reach 95% to the removal efficient of toxic and harmful in the waste incineration furnace exhaust gas, and has that operating cost is low, the advantage of long service life.
Chinese patent 200710201084 the utility model discloses a kind of bidirectional rotational flow separating biomass ash sack cleaner, its air inlet pipe with living beings ash sack cleaner is made as arc pipe, the air inlet pipe mouth of pipe that is connected on the living beings ash sack cleaner is relative with the ash bucket of living beings ash sack cleaner, make the dust that is incorporated in the interior dusty gas of living beings ash sack cleaner air inlet pipe in arc pipe, produce bigger centrifugal force, and it is separated from the gas under this action of centrifugal force, dust separated from the gas directly is injected into the ash bucket of living beings ash sack cleaner along the opening direction of arc pipe, thereby reduces the load of living beings ash bag-type duster filtering bag.Be made as curve bend by admission line with living beings ash sack cleaner, the dust that enters into the external feed stream pipe is separated dust under action of centrifugal force with gas, can reduce contacting of dust and filter bag like this, improve the clean-up effect of purification efficiency, stream time and the equipment of living beings ash sack cleaners.
Chinese patent 200720091609 discloses a kind of moisture film living beings ash sack cleaner, comprise the dedusting cylindrical shell, dedusting cylindrical shell top is provided with the flue dust inlet, sidewall is provided with the flue dust outlet, flue dust inlet below is provided with the cloth bag fixed mount of circumference sealing, be provided with dust-removal cloth-bag in the dedusting cylindrical shell, dust-removal cloth-bag top is sleeved on the cloth bag fixed mount, and the outside wall body corresponding with cloth bag fixed mount position is provided with annular spilling water groove; Cloth bag fixed mount internal upper part flue dust porch is provided with sprayer unit.After having adopted this structure, the dust-removal cloth-bag outside by annular spilling water groove spill stream through cloth bag fixed mount and dust-removal cloth-bag, guarantee that the dust-removal cloth-bag outer surface forms water membrane, flue dust is through the dust-removal cloth-bag dust removal by filtration, the increase flue dust fully contacts with water, improve dust removing effects greatly, form water smoke by sprayer unit in the dust-removal cloth-bag and carry out dedusting, improve dust removing effects.
Chinese patent 200710158930 discloses a kind of living beings ash sack cleaner, it includes the air intake flue, the air-out flue, the dividing plate that has the cloth bag installing hole, the epicoele and the cavity of resorption that are separated into by dividing plate, be installed in filter bag and the interior latticed skeleton of filter bag on the dividing plate installing hole, it is characterized in that air intake flue and bypass air channel are separately positioned on the both sides of body of wall bottom, dividing plate below, have in the filter bag with filter bag is the wearing layer of one, epicoele at living beings ash sack cleaner is equipped with lighting device, epicoele also is equipped with the filter bag monitor, in the cavity of resorption bottom of casing screw ash-discharging device is installed also.The long service life of filter bag not only, and can view the dedusting filter bag that wearing and tearing are broken easily in the outside of deduster, and can under the situation of not blowing out, change filter bag, make the maintenance of living beings ash sack cleaner become very convenient.
Above-mentioned existing living beings ash sack cleaner is in dust removal process, and dust is delayed at the outer surface of filter bag, and along with the filter bag surface dust constantly increases, the deduster inlet outlet pressure differential also rises thereupon, need carry out deashing to filter bag this moment and handle.But, in the boiler that uses biomass fuel, because of the afterbody flue dust that produces has stronger cohesiveness, and particle diameter is little, light weight, is adsorbed to be difficult on the filter bag fall, and its existing soot cleaning system ash-removal effect is not obvious, make running resistance increase, cause deduster after operation a period of time with regard to the problem that dust arrestment rate descends occurring, cause boiler load not increase, even the filter bag scaling loss, influence the continuous reliability service of system; Common in such cases solution is to change filter bag, but this has caused bigger financial burden to enterprise.
Summary of the invention
At the shortcoming of prior art, the purpose of this utility model provides a kind of living beings ash sack cleaner, mustn't change the problem that filter bag just can solve ash-removal effect difference in the existing deduster.
To achieve these goals, the technical solution of the utility model is: a kind of living beings ash sack cleaner, comprise upper box body, middle part casing and lower part box, wherein, the inlet channel that communicates with the dusty gas inlet is set in the casing of middle part, in the casing of middle part inlet channel above separate a plurality of bag cages that communicate with inlet channel be set, in each bag cage, place filter bag and each bag cage and communicate with purified gas outlet, communicate with pulse valve in being arranged on upper box body by outlet valve respectively, in lower part box, be provided for the ash bucket of ash discharge by jet pipe.
Preferably, the middle part casing is a square box, and described bag cage adopts the arrangement in upright arrangement in length and breadth that can strengthen filter bag centre-to-centre spacing.
Preferably, bag cage and filter bag are columnar structured.
Further, at bag cage surface coated heat zinc coat, and install the cold stamping short tube additional at bag cage top.
Preferably, each bag cage connects a plurality of pulse valves, and it sprays the main control of dust position of the setting of position corresponding to filter bag, in turn filter bag is jetted successively under the outlet valve closing state.
Further, Mars is set in inlet channel captures baffle plate, this Mars captures the passage that plate washer is provided with a plurality of small-bores.
Preferably, Mars captures baffle plate and comprises perpendicular to the vertical baffle of the approach axis of dusty gas and the sloping baffle that is obliquely installed in the face of the approach axis of dusty gas above vertical baffle.
Further, in the bottom of ash bucket star-like unloading valve is set.
Further, be provided with at upper box body and just lift formula top cover and maintenance staircase platform.
Further, on the outer wall of ash bucket, be provided with rapping apparatus.
Compared with prior art, the utility model has adopted the off-line locellus to take turns pulse dust cleaning, and whole deduster is separated into a plurality of chambers (bag cage), links to each other with discharge pipe by valve, and the valve closing of chamber during deashing makes this chamber off-line.Spray compressed air by jet pipe to filter bag by pulse valve, carry out jetting deashing and finish, open this chamber valve, in like manner whole deduster is carried out deashing by the chamber, therefore solved the problem of biomass boiler deashing difficulty in service.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a Facad structure schematic diagram of the present utility model.
Fig. 2 is the left line of vision schematic diagram of Fig. 1.
Fig. 3 be Fig. 1 overlook the direction schematic diagram.
The specific embodiment
See also Fig. 1 to Fig. 3, the living beings ash sack cleaner of present embodiment comprises upper box body 1, middle part casing 2 and lower part box 3, wherein, in middle part casing 2, be provided with and dusty gas inlet 4 inlet channels that communicate 5, in middle part casing 2 inlet channel 5 above separate a plurality of bag cages 6 that communicate with inlet channel 5 be set, placement filter bag 7 and each bag cage communicate with purified gas outlet 8 by the outlet valve (not shown) respectively in each bag cage, communicate with pulse valve 10 in being arranged on upper box body 1 by jet pipe 9, in lower part box 3, be provided for the ash bucket 11 of ash discharge.
When handling burning gases or high-temperature gas, imperfect combustion dust, Mars are usually arranged, have burning and damp etc. to enter among the system, some dust has the character or the charging property of involuntary ignition, simultaneously, the material of most of filtrates all is again that easy generation of easy firing, friction gathered static, under such operating condition, exist burn, the harm of explosion accident, the consequence of this class accident is very serious often.Should consider to take fire prevention, explosion precaution well.For preventing that Mars from entering living beings ash sack cleaner, burns out filter bag; (ash bucket 11 tops) are provided with Mars and capture baffle plate 12 in inlet channel 5 bottoms, and Mars captures baffle plate and comprises perpendicular to the vertical baffle 13 of the approach axis of dusty gas and the sloping baffle 14 that is obliquely installed in the face of the approach axis of dusty gas above vertical baffle 13.Adopt sedimentation (flue gas flow rate is less than 3m/s)+shutter concepts that Mars is captured.It is effective that this method captures Mars, is arranged in the deduster inlet channel, arranges compact, attractive in appearance, lower than whirlwind deduster capture Mars resistance simultaneously.
In order to strengthen ash-removal effect, adopted the off-line locellus to take turns pulse dust cleaning, a plurality of bags of cages 6 (chamber) are set in upper box body 1, the outlet valve of a chamber is closed during deashing, makes this chamber off-line.Spray compressed air by jet pipe 9 to filter bag 7 by pulse valve 10, a chamber can be connected with a plurality of pulse valves, jets in turn successively, and dusty gas is outside filter bag, and pure air is in filter bag, and sack upwards.Timing of deashing functional utilization or the winding-up of level pressure function on pulse blowing valve make the filter bag radial deformation, shake off dust.Deashing finishes, and opens this chamber valve, in like manner whole deduster is carried out deashing by the chamber.The filter area of each unit, long can the adjustment according to actual needs of bag, and adapt to needed filtration air quantity by the change of element number.
The bag cage adopts round, and the top installs cold stamping short tube (not shown) additional, is used to guarantee the vertical of bag cage and the safety of protection filter pocket mouths when winding-up.The bag cage adopts the galvanizing technology, coating firmly, corrosion resistant, avoided deduster work a period of time after the corrosion of cage bone surface cohere with filter bag, it is smooth to have guaranteed to change bag, has reduced the damage of changing in bag process cloth bag simultaneously.
In addition, deduster adopts and just lifts formula top cover (not shown), is provided with maintenance staircase platform (not shown); The star-like unloading valve 15 of use in the ash bucket bottom when unloading ash, can effectively guarantee the sealing of deduster, the flue dust that blows off to discharge port can be discharged cinder-discharging port again; The outer bulkhead of ash bucket is provided with rapping apparatus 16, and is smooth and easy so that ash bucket unloads ash, and it is on-the-spot to prevent to put up a bridge.
During work, when dusty gas enters inlet channel by air inlet, at first run into swash plate and baffle plate in the middle of the air inlet, air-flow just diverted flow is gone into ash bucket, and air velocity slows down simultaneously, because effect of inertia, makes that crude particle dust flows directly into ash bucket in the gas.Play the effect of gathering dust in advance, the air-flow that enters ash bucket is rolled over subsequently and the filter bag dust that upwards by inside metallic framework is housed is trapped in the outer surface of filter bag, and purified gas enters top, filter bag chamber clean room, is pooled to air outlet and discharges.In the process of dusty gas by the filter bag purification, the long-pending dust that is attached on the filter bag is more and more along with the increase of time, thereby the resistance of filter bag is increased gradually, cause the processing air quantity to reduce gradually, be operate as normal, control resistance (the 140-170 millimeter of water) within the specific limits, at this moment when resistance is raised to limited range, the unbalanced pulse valve, compressed air is ejected in each corresponding filter bag by each aperture of winding-up pipe, filter bag moment sharply expands, and makes the long-pending dust releasing that is attached to the filter bag surface, and filter bag obtains regeneration.Clear dust down falls into ash bucket and discharges body through star-like unloading valve.The long-pending thus dust pulse jetting deashing periodically that is attached on the filter bag normally passes through Purge gas, guarantees the normal operation of deduster.
Claims (10)
1. living beings ash sack cleaner, it comprises upper box body, middle part casing and lower part box, it is characterized in that, the inlet channel that communicates with the dusty gas inlet is set in the casing of middle part, in the casing of middle part inlet channel above separate a plurality of bag cages that communicate with inlet channel be set, in each bag cage, place filter bag and each bag cage and communicate with purified gas outlet, communicate with pulse valve in being arranged on upper box body by outlet valve respectively, in lower part box, be provided for the ash bucket of ash discharge by jet pipe.
2. living beings ash sack cleaner according to claim 1 is characterized in that described middle part casing is a square box, and described bag cage adopts the arrangement in upright arrangement in length and breadth that can strengthen filter bag centre-to-centre spacing.
3. living beings ash sack cleaner according to claim 1 is characterized in that described bag cage and filter bag are columnar structured.
4. living beings according to claim 1 ash sack cleaner is characterized in that, at described bag cage surface coated heat zinc coat, and installs the cold stamping short tube additional at bag cage top.
5. living beings ash sack cleaner according to claim 1, it is characterized in that, each bag cage connects a plurality of pulse valves, and it sprays the main control of dust position of the setting of position corresponding to filter bag, in turn filter bag is jetted successively under described outlet valve closing state.
6. living beings ash sack cleaner according to claim 1 is characterized in that Mars is set captures baffle plate, this Mars captures the passage that plate washer is provided with a plurality of small-bores in described inlet channel.
7. living beings ash sack cleaner according to claim 6, it is characterized in that described Mars captures baffle plate and comprises perpendicular to the vertical baffle of the approach axis of dusty gas and the sloping baffle that is obliquely installed in the face of the approach axis of dusty gas above described vertical baffle.
8. living beings ash sack cleaner according to claim 1 is characterized in that, in the bottom of described ash bucket star-like unloading valve is set.
9. living beings ash sack cleaner according to claim 1 is characterized in that, described upper box body is provided with and just lifts formula top cover and maintenance staircase platform.
10. living beings ash sack cleaner according to claim 1 is characterized in that, is provided with rapping apparatus on the outer wall of described ash bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202437975U CN201728020U (en) | 2010-06-30 | 2010-06-30 | Biomass ash bag dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202437975U CN201728020U (en) | 2010-06-30 | 2010-06-30 | Biomass ash bag dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201728020U true CN201728020U (en) | 2011-02-02 |
Family
ID=43519179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202437975U Expired - Lifetime CN201728020U (en) | 2010-06-30 | 2010-06-30 | Biomass ash bag dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201728020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553360A (en) * | 2010-06-30 | 2012-07-11 | 广州迪森热能技术股份有限公司 | Biomass ash bag deduster |
| CN110304457A (en) * | 2019-05-14 | 2019-10-08 | 大连广的科技有限公司 | Air-driven chute formula automatic foreign impurities removing device |
-
2010
- 2010-06-30 CN CN2010202437975U patent/CN201728020U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553360A (en) * | 2010-06-30 | 2012-07-11 | 广州迪森热能技术股份有限公司 | Biomass ash bag deduster |
| CN102553360B (en) * | 2010-06-30 | 2014-05-28 | 广州迪森热能技术股份有限公司 | Biomass ash bag deduster |
| CN110304457A (en) * | 2019-05-14 | 2019-10-08 | 大连广的科技有限公司 | Air-driven chute formula automatic foreign impurities removing device |
| CN110304457B (en) * | 2019-05-14 | 2024-02-02 | 大连广的科技有限公司 | Pneumatic chute type automatic impurity removing device |
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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: 20110202 Effective date of abandoning: 20140528 |
|
| RGAV | Abandon patent right to avoid regrant |