CN105296014A - High-temperature and high-pressure granular-bed filter device and filter material regenerating method - Google Patents
High-temperature and high-pressure granular-bed filter device and filter material regenerating method Download PDFInfo
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- CN105296014A CN105296014A CN201510616245.1A CN201510616245A CN105296014A CN 105296014 A CN105296014 A CN 105296014A CN 201510616245 A CN201510616245 A CN 201510616245A CN 105296014 A CN105296014 A CN 105296014A
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Abstract
The invention provides a high-temperature and high-pressure granular-bed filter device and a filter material regenerating method. The device is suitable for filtering dust removal of crude gas with the temperature range of 80 to 1,300DEG and the pressure range of 0.2 to 1.0Mpa and the filter material regenerating method matched with the device for online ash clearing; meanwhile, the invention discloses a pressurized sealing method matched with the filter material regenerating method to guarantee that no high-temperature and high-pressure coal gas leaks when the device feeds (discharges) materials. The high-temperature and high-pressure granular-bed filter device is of a casing structure, wherein a material distributing bin (10), a purified coal gas bin (20) and a crude coal gas bin (30) are sequentially arrayed inside a casing from top to bottom; a feeding pipe (13), a material outlet pipe (33), a purified coal gas outlet (22), a crude coal gas inlet (34), a material distributing rake driving device (17c), a compressed gas inlet (15) and a manhole are arranged outside the casing.
Description
Technical field
The invention provides a kind of High Temperature High Pressure granular bed filter apparatus and media regeneration method, relate to the filtration of High Temperature High Pressure coal gas, flue gas in the industrial fields such as Coal Chemical Industry, IGCC, PFBC, boiler and dust removal installation and a kind of media regeneration method coordinating this device online ash removal.
Background technology
At present, more and more extensive, harsh and in process of production the energy saving requirement of requirement that the technique such as Modern Coal-based Chemical, IGCC, PFBC is filtered for High Temperature High Pressure raw gas is more and more higher, traditional gas filtration method for dust removal is used for high temperature, the dust removal by filtration of high pressure gas exists significant limitation and defect, main because: 1, raw gas temperature is high, and general Coal Chemical Industry low temperature pyrogenation coal gas is 400 ~ 600 DEG C, IGCC and PFBC is 860 ~ 1300 DEG C; 2, contain easy condensation and bonding macromole aromatic substance in raw gas, when reducing coal gas filtration temperature, easily cause filter stoppage; 3, the etchant gas in raw gas, as high in hydrogen sulfide, ammonia equal size, even containing basic metal, heavy metal vapor etc. for filter plant seriously corroded; 4, filter at low temperature gas heat thermosteresis large reduction process heat efficiency etc.
Granular-bed filter comes into the sight line of people gradually because of the material behavior of its uniqueness, structural performance.It is good that the granule filter material used due to granular-bed filter has resistance toheat, the advantages such as mobility is strong, thus make the strainer based on this filtrate can avoid limitation and the defect of conventional filter, simultaneously, filter plant possesses and not easily blocks, the advantages such as sensible heat loss is little, low price, are more suitable for the depth type filtration dedusting of High Temperature High Pressure highly corrosive gas.Meanwhile, the active material or catalyzer that have and participate in chemical reaction can also be added in filtrate, reach and remove combining of multiple pollutant in coal gas, smoke filtration dust removal process.
Summary of the invention
The present invention discloses a kind of High Temperature High Pressure granular bed filter apparatus and a kind of media regeneration method supporting with apparatus of the present invention.To be that dirt-carrying particulate material discharger is external carry out being separated of particulate material and dust to the media regeneration method that the present invention announces, recycling of regenerated particulates material return mechanism, simultaneously, disclose a kind of in order to coordinate media regeneration method assurance device input and output material time, High Temperature High Pressure coal gas does not leak used pressure seal method.High Temperature High Pressure granular bed filter apparatus of the present invention, is applicable to temperature range 800 ~ 1300 DEG C, and the raw gas of pressure range 0.2 ~ 1.0Mpa filters and dedusting.
A kind of High Temperature High Pressure granular bed filter apparatus, its structure is: the cylindrical cavity housing having upper lower cover, is characterized in that: described enclosure interior is arranged in sequence with three interior storehouses from top to bottom, i.e. distribution cabins 10, purified gas storehouse 20, raw gas storehouse 30; Two storehouses every, namely between distribution cabins and purified gas storehouse be upper storehouse every 12, be that lower storehouse is every 21 between purified gas storehouse and raw gas storehouse.
Described distribution cabins 10, as shown in Figure 1, is characterized by: by top end socket 11, upper storehouse every 12, the cavity that surrounds of sidewall 40, be provided with distribution device 17 in storehouse;
Described top end socket 11, is characterized by: its top is provided with feed-pipe 13, cloth claw shaft hole 14, inlet for pressurised gas 15, manhole 16;
Described upper storehouse, every 12, is characterized by: split upper and lower two storehouses, makes two storehouses have different using function, and level cross-sectionn is circular, has one or more vertically through tremie pipe circular hole 18 in the above;
Described sidewall 40, is characterized by: be provided with raw gas import 22, manhole 25;
Described distribution device 17, is characterized by: subassembly, comprising: combine by the cloth claw 17a be linked in sequence from the bottom to top, cloth claw rotating shaft 17b, cloth claw drive unit 17c;
Described cloth claw 17a, it is arranged in storehouse every 12 upper surfaces, it is characterized by: windmill structure, is made up of the rake teeth of a central shaft and three star-shaped arrangement, and central shaft is connected with cloth claw rotating shaft 17b;
Described cloth claw rotating shaft 17b, column structure, pass perpendicularly through top end socket 11 cloth claw shaft hole 14, it is characterized by: rotation axis, its lower end is connected with cloth claw central shaft, and upper end is connected with cloth claw drive unit 17c;
Described cloth claw drive unit 17c, is positioned at above distribution cabins top end socket 11, it is characterized by: electric device, and lower rotational axle is connected with cloth claw rotating shaft 17b;
Described cloth claw shaft hole 14, is characterized by: by this patent scheme for being located at top end socket 10 central position.
Described purified gas storehouse 20, as shown in Figure 1, to is characterized by by upper storehouse every 12, cavity that lower storehouse surrounds every 21 and sidewall 40, establishes tremie pipe 23 in storehouse;
Described lower storehouse is every 21, it is characterized by: split upper and lower two storehouses, make two storehouses have different using function, level cross-sectionn is circular, has pipe circular hole 24 in the identical vertical through filtration in the position identical every 12 blanking circular hole 18 quantity with upper storehouse in lower storehouse every plane;
Described purified gas storehouse sidewall 40, is characterized by: be provided with purified gas outlet 22, manhole 25;
Described tremie pipe 23, is characterized by: round tubular, at right angle setting, and storehouse of being fixed on suitable for reading is in 11 tremie pipe circular holes 18, and end opening is unsettled, and end opening and lower storehouse compartment are apart from being equal to or less than tremie pipe diameter.
Described raw gas storehouse 30, as shown in Figure 1, to is characterized by by lower storehouse every 21, cavity that bottom bulkhead 31 and sidewall 40 surround, establishes pipe 32, discharge nozzle 33 in filtering in storehouse;
Described bottom bulkhead 31, is characterized by: it has with upper storehouse every the identical vertical through bottom circular aperture 35 in the position that 12 blanking circular hole 18 quantity are identical;
Described sidewall 40, is characterized by: be provided with raw gas import 34, manhole 36;
Pipe 32 in described filtration, is characterized by: round tubular, and it is suitable for reading is fixed on lower storehouse pipe circular hole 24 in filtration, and end opening is unsettled;
Described discharge nozzle 33, it is characterized by: at right angle setting, it is formed by connecting by the wealthy mouth 33a in top and lower subordinate's pipe 33b, lower pipe 33b passes perpendicularly through bottom circular aperture 35 and is fixed in circular hole, wealthy mouth 33a is just to pipe 32 end opening in filtration, suitable for reading being equal to or less than with pipe 23 end opening spacing in filtration of wealthy mouth 33a filters interior pipe 23 lower port diameter, and wealthy mouth 33a back cut diameter is more than or equal to pipe 23 lower port diameter 1 times in filtration;
In described blanking circular hole 18, bottom circular aperture 35, filtration, pipe circular hole 24 quantity is identical, and three holes are concentric;
Described tremie pipe 23, the interior pipe 32 of filtration, particle discharge nozzle 33 quantity are identical, and three pipes with one heart.
A kind of described media regeneration method supporting with apparatus of the present invention, as shown in Figure 6, its feature comprises sealing pressing drawing mechanism, delivery system, separation and dust-removal system, sealing pressing feeding unit;
Described sealing pressing drawing mechanism, is characterized by: the order that device element connection portion from top to bottom connects successively is dumper 50a, Y-tube 51a dumper 50b;
Described delivery system, is characterized by: the equipment be linked in sequence successively after the outlet of sealing pressing drawing mechanism is powder conveyer 52, material feeding magazine 54, transport pipe 55;
Described sealing pressing feeding unit, is characterized by: device element connection portion from the bottom to top successively the order of connection be dumper 50d, Y-tube 51b, dumper 50c.
Described separation system, it is characterized by: cyclonic separator carries out particle and dust separation, sack cleaner gathers dust discharge, comprises that the order that equipment connects successively is cyclonic separator 60, sack cleaner 61, induced draft fan 62, Cyclone outlet tube 63, sack cleaner outlet pipe 64 form, dumper 65.
Described a kind of tightness system, as shown in Figure 6, is characterized by: system is made up of source of the gas and assembly, comprise by the order connected successively be pressurized gas pipeline 56, ball valve 53a, 53b, 53c, Y-tube 51a, 51b form, external high pressure source gas is air, N
2, CO
2or other technique allows the gas of use.
Accompanying drawing explanation
Fig. 1 illustrates according to High Temperature High Pressure granular-bed filter structure drawing of device of the present invention.
Fig. 2 illustrates according to High Temperature High Pressure granular bed filter apparatus A-A sectional view of the present invention.
Fig. 3 illustrates according to High Temperature High Pressure granular bed filter apparatus B-B sectional view of the present invention.
Fig. 4 illustrates according to High Temperature High Pressure granular bed filter apparatus C-C sectional view of the present invention.
Fig. 5 illustrates according to High Temperature High Pressure granular bed filter apparatus D-D sectional view of the present invention.
Fig. 6 illustrates the supporting media regeneration method figure of contrive equipment.
In accompanying drawing, mark is as follows:
Distribution cabins--10, top end socket--11, upper storehouse is every--12, feed-pipe--13, cloth claw shaft hole--14, inlet for pressurised gas--15, manhole--16, distribution device--17, cloth claw--17a, the rotating shaft of cloth claw--17b, cloth claw drive unit--17c, tremie pipe circular hole-18; Purified gas storehouse--20, lower storehouse is every--21, purified gas outlet--22, tremie pipe--23, filter in pipe circular hole--24;
Raw gas storehouse--30, bottom bulkhead--31, filter in pipe--32, discharge nozzle--33, wealthy mouth--33a, lower pipe--33b, raw gas import--34, bottom circular aperture-35; Sidewall--40; Dumper--50a, dumper--50b, dumper--50c, dumper--50d, Y-tube--51a, Y-tube--51b, worm conveyor--52, ball valve--53a, ball valve--53b, material feeding magazines--54, transport pipe--55, pressurized gas pipeline--56; Cyclonic separator--60, airduct--63, sack cleaner--61, induced draft fan--62, sack cleaner outlet airduct--64, dumper-65; Granule filter material layer natural packing section--a, b, c.
Embodiment
Described High Temperature High Pressure granular bed filter apparatus, be suitable for filtration and the dedusting of High Temperature High Pressure raw gas, flue gas in the industrial fields such as Coal Chemical Industry, IGCC, PFBC, boiler, temperature range is applicable to 800 ~ 1300 DEG C, and pressure range is applicable to the coal gas of 0.2 ~ 2.0Mpa.
Granule filter material can be adopted as shaping spherical alumina, silicon oxide ceramics microballoon, drift pearl, activated coke particle, metal felt ball, filtrate diameter 0.5 ~ 5mm.
Sealed gas, according to the available gas resource of the service requirements in purified gas downstream and outside, adopts air, N
2, CO
2or other gases.
The operating process according to High Temperature High Pressure granular bed filter apparatus of the present invention is described in detail below with reference to accompanying drawing.
Operational condition is that raw gas temperature range is applicable to 800 ~ 1300 DEG C of scopes, and pressure is applicable to 0.2 ~ 2.0Mpa, raw gas dust content 0.8 ~ 1.1g/m
3, granule filter material adopts drift pearl.
Operating process mainly comprises gas filtration flow process, particulate material reprocessing cycle flow process, sealing pressing flow process three systems.
Filter for installation prepares flow operations, open end socket 11 top, distribution cabins 10 top manhole 16, dress closes manhole after loading enough granule filter materials, start cloth claw drive unit, granule filter material is made constantly to enter tremie pipe, strainer tube, discharge nozzle, after material level reaches requirement, open pressurized gas pipeline upper ball valve 53a, 53b, 53c, make Y-tube 51a, 51b, distribution cabins 10 reaches the force value of design requirements, pass into raw gas to filter, purified gas remover, when slightly, when purified gas resistance difference is increased to certain peak value, start dumper 50a, 50b discharge, after discharge, material level moves down, distribution cabins particle continues to supplement makes material level keep constant into tremie pipe, start induced draft fan 62, worm conveyor 52, make delivery system, be separated and dust-removal system, sealing pressing feeding unit operates.
Equipment room linkage relationship is, mutual linking between dumper dumper 50a, 50b, 50c, 50d, ensures to filter granule filter material material level in interior pipe 32 normal.
Gas filtration flow operations, as shown in Fig. 1 ~ 5, High Temperature High Pressure raw gas enters raw gas import 34, enter raw gas storehouse 30, pipe 32 in filtration is entered from the bottom to top at granule filter material layer natural packing section c, purified gas storehouse 20 is entered by filtering interior pipe 32 and rising and pass granule filter material layer natural packing section b, export 22 by purified gas and discharge this device, raw gas, entering purified gas storehouse 20 through pipe 32, granule filter material layer natural packing section b in granule filter material layer natural packing section c, filter, goes out purified gas outlet 22.
Particulate material reprocessing cycle flow operations, as shown in Fig. 1 ~ 5, particulate material drops to distribution cabins 10 granule filter material layer natural packing section a from particulate material import 13, starting cloth claw drive unit 17c makes cloth claw 17a storehouse on entering rotate above 12, claw 17a rotating speed 1 ~ 2 rev/min, the a granule filter material of natural packing is harrowed into upper storehouse every 12 circular holes 18, granule filter material falls under gravity into tremie pipe 23, form granule filter material layer natural packing section b temporal persistence, after starting dumper 50a and dumper 50b, pipe 32 in granule filter material is displaced downwardly to and filters, in filtration, pipe 32 end opening and the wealthy mouth 33a of particulate material discharge nozzle open and locate to form granule filter material natural packing section c, particulate material drops to discharge nozzle 33 by the wealthy mouth 33a of particulate material discharge nozzle and discharges this device, drop to dumper 50a, dumper 50a falls to dumper 50a after rotating and granule filter material being advanced Y-tube 51a, dumper 50a rotating particles filtrate enters worm conveyor 52, worm conveyor 52 by particle transport to material feeding magazine 54, material feeding magazine 54 connects dilute phase conveying system negative pressure transportation pipeline 55, particle enters cyclonic separator 60 by pipeline, particle falls into cyclonic separator 60 hopper, cyclonic separator hopper is unloaded glassware 50c, dumper 50c falls to dumper 50c after rotating and granule filter material being advanced Y-tube 51b, dumper 50c rotating particles filtrate access to plant particulate material opening for feed pipe 13 completes the regenerative process of a particulate material.
Dilute phase conveying system operates, and what cyclonic separator was discharged enters sack cleaner 61 by air and dust separation containing dust air through airduct 63, and air enters in the air through induced draft fan 62, is discharged after dust enters sack cleaner ash silo by dumper 65.
Sealing pressing flow operations, as shown in Figure 6, pressurized gas pipeline upper ball valve 53a, 53b, 53c is opened during plant running, pressurized gas is made to enter Y-tube 51a, 51b and device inlet for pressurised gas 15, to ensure during operation that Y-tube 51a internal pressure is higher than raw gas storehouse 30 pressure 0.05Mpa, Y-tube 51b pressure is higher than distribution cabins pressure 0.02Mpa, and distribution cabins pressure is higher than clean coal storehouse pressure 0.02Mpa.
Claims (7)
1. a High Temperature High Pressure granular bed filter apparatus, its structure is the cylindrical cavity housing having upper lower cover, it is characterized in that: described enclosure interior is arranged in sequence with three interior storehouses from top to bottom, i.e. distribution cabins, purified gas storehouse, raw gas storehouse; Two storehouses every, be namely upper storehouse between distribution cabins and purified gas storehouse every, be lower storehouse between purified gas storehouse and raw gas storehouse every.
2. High Temperature High Pressure granular bed filter apparatus according to claim 1, it is characterized in that: described distribution cabins, the cavity surrounded every, sidewall by top end socket, upper storehouse, described top end socket, be furnished with one or more feed-pipe, inlet for pressurised gas, one or more rotating shaft, a manhole, the rake device for coal that described rotating shaft is arranged with inside, storehouse downwards through top end socket is connected, upwards harrow drive unit with filtrate to be connected, described upper storehouse every, its plane is opened and somely runs through tremie pipe circular hole (18).
3. High Temperature High Pressure granular bed filter apparatus according to claim 1, it is characterized in that: described purified gas storehouse, by upper storehouse every, lower storehouse is every the cavity surrounded with sidewall, inside is provided with quantity for one or more tremie pipes, described tremie pipe is characterized by circular tube structure, tremie pipe storehouse of being fixed on suitable for reading is in (11) tremie pipe circular hole (18), end opening is unsettled, described lower storehouse every, its plane is opened and blanking circular hole equal amts, pipe circular hole (24) in the concentric filtration run through in vertical position, described tremie pipe end opening and lower storehouse pipe circular hole (24) vertical direction spacing in flat filter is equal to or less than tremie pipe diameter, described sidewall, be provided with one or more purified gas outlet (22).
4. High Temperature High Pressure granular bed filter apparatus according to claim 1, is characterized in that: described waste coal bunker, the cavity surrounded every, bottom bulkhead and sidewall by lower storehouse, and inside is provided with in the filtration identical with tremie pipe quantity and manages and discharge nozzle; Described bottom bulkhead, is characterized in that, bottom cambered surface has and runs through circular hole (35), circular hole quantity is consistent every circular hole with lower storehouse with planar central, and in described filtration, pipe (32), is characterized by round tubular, suitable for reading be fixed on lower storehouse every filtration in pipe circular hole (24), end opening is unsettled; Described discharge nozzle (33), it is characterized in that being formed by connecting by the wealthy mouth (33a) on top and the straight tube (33b) of bottom, described wealthy mouth (33a), is characterized by the hollow funnel structure of reverse taper, and cone extended line and cone center line angle degree are not more than 28
o, described straight tube (33b) is through bottom circular aperture (35) and be fixed in circular hole, and in described filtration, pipe (23) end opening and wealthy mouth (33a) vertical spacing suitable for reading are equal to or less than to filter and interiorly manage (23) lower port diameter; In described filtration, pipe vertical length is less than particulate material discharge nozzle and tremie pipe vertical length, described sidewall, is provided with one or more raw gas import (34).
5. according to claim 2, 3, tremie pipe (23) described in 4, pipe (32) in filtering, the device internal spatial relationship of discharge nozzle (33), it is characterized in that: three tube space positions from top to bottom arrange by listed order, three pipe transverse section are annular, three pipe quantity are identical, three pipe concentric vertical are installed, three pipe top bores increase successively, that is: filter interior pipe (32) back cut diameter and be more than or equal to tremie pipe (23) lower port diameter 1 times, wealthy mouth (33a) back cut diameter is more than or equal to pipe (23) lower port diameter 1 times in filtration, in filtering, pipe (32) length is 0.5 ~ 3.0m.
6. solid particulate filtrate according to claim 1 is shaping spherical alumina, silicon oxide ceramics microballoon, drift pearl, activated coke particle, metal felt ball, filtrate diameter 0.5 ~ 5mm.
7. a media regeneration method supporting with apparatus of the present invention, be characterized in: raw gas temperature range is applicable to 800 ~ 1300 DEG C, pressure range is applicable to 0.2 ~ 2.0Mpa, the method comprises the steps: sealing pressing drawing mechanism, delivery system, separation and dust-removal system, sealing pressing feeding unit, described sealing pressing drawing mechanism, step is: dust-laden filtrate relies on own wt to enter pressure seal downwards by after device discharge nozzle (33) discharger, through reduce pressure backward under enter worm conveyor (52); Described delivery system, step is: filtrate is delivered into material feeding magazine by worm conveyor, through air diluted phase transport to cyclonic separator; Described separation and dust-removal system, step is: filtrate enters cyclonic separator and realizes being separated of filtrate and dust, and enter after sack cleaner is collected containing dust air and drain into air, dust is collected by sack cleaner; Described sealing pressing feeding unit, step is: regeneration filtrate relies on own wt to enter pressure seal feeding unit downwards, reaches access to plant feed-pipe (13) after the pressure of purified gas storehouse through pressurization; Described pressure seal is entered (going out) materials device, is characterized by: by an external air source and vertically arranged rotation pressure-applying unit, described source of the gas, is characterized by: can provide and meet sealing demand and the source of the gas higher than raw gas more than pressure 0.05Mpa; The gas that described source of the gas uses comprises: air, N
2, CO
2or other are allowed gas by technique; Described rotation pressure-applying unit, comprising: by the dumper connected successively from top to bottom, Y-tube, dumper, described Y-tube, and upper and lower opening is connected with two dumpers, and middle port is connected with source of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616245.1A CN105296014A (en) | 2015-09-24 | 2015-09-24 | High-temperature and high-pressure granular-bed filter device and filter material regenerating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616245.1A CN105296014A (en) | 2015-09-24 | 2015-09-24 | High-temperature and high-pressure granular-bed filter device and filter material regenerating method |
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| CN105296014A true CN105296014A (en) | 2016-02-03 |
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ID=55193858
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|---|---|---|---|
| CN201510616245.1A Pending CN105296014A (en) | 2015-09-24 | 2015-09-24 | High-temperature and high-pressure granular-bed filter device and filter material regenerating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221818A (en) * | 2016-02-16 | 2016-12-14 | 舒瑞 | A kind of semi-spiral bio-coal air dry formula continuous filter unit |
| CN112725558A (en) * | 2020-12-23 | 2021-04-30 | 苏州航明环保节能科技有限公司 | Converter gas dry-method dust removal device |
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| DE3411801A1 (en) * | 1984-03-30 | 1985-10-10 | Standard Filterbau Dr. E. Andreas GmbH & Co, 4400 Münster | Packed bed filter |
| CN2581050Y (en) * | 2002-11-15 | 2003-10-22 | 福州大学 | Efficient duster of carbon granule bed for treating carbon granule dust |
| CN1470310A (en) * | 2003-06-18 | 2004-01-28 | 宁波大学 | Granular bed filter dust-collector and method thereof |
| CN1552504A (en) * | 2003-12-18 | 2004-12-08 | 国电热工研究院 | Moving bed stratum granulosum filter of thermal conterflow uniform flow field |
| CN104226070A (en) * | 2014-10-21 | 2014-12-24 | 北京弘扬紫东环保科技有限公司 | Fixed particle layer dust remover |
| CN104436923A (en) * | 2014-11-07 | 2015-03-25 | 王树宽 | Reverse-flow moving bed crude gas dust remover, dust removing system and dust removing method |
-
2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3411801A1 (en) * | 1984-03-30 | 1985-10-10 | Standard Filterbau Dr. E. Andreas GmbH & Co, 4400 Münster | Packed bed filter |
| CN2581050Y (en) * | 2002-11-15 | 2003-10-22 | 福州大学 | Efficient duster of carbon granule bed for treating carbon granule dust |
| CN1470310A (en) * | 2003-06-18 | 2004-01-28 | 宁波大学 | Granular bed filter dust-collector and method thereof |
| CN1552504A (en) * | 2003-12-18 | 2004-12-08 | 国电热工研究院 | Moving bed stratum granulosum filter of thermal conterflow uniform flow field |
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| CN104436923A (en) * | 2014-11-07 | 2015-03-25 | 王树宽 | Reverse-flow moving bed crude gas dust remover, dust removing system and dust removing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221818A (en) * | 2016-02-16 | 2016-12-14 | 舒瑞 | A kind of semi-spiral bio-coal air dry formula continuous filter unit |
| CN112725558A (en) * | 2020-12-23 | 2021-04-30 | 苏州航明环保节能科技有限公司 | Converter gas dry-method dust removal device |
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Application publication date: 20160203 |