CN102786991A - Particle bed dust removing device and dust removing method of low-temperature dry distillation gas - Google Patents
Particle bed dust removing device and dust removing method of low-temperature dry distillation gas Download PDFInfo
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Abstract
The invention discloses a particle bed dust removing device and a dust removing method of low-temperature dry distillation gas. A fixed bed filter has a lot of defects that: 1, a screen for supporting particles and distributing gas is easily plugged and damaged; and 2, in order to completely deash, a stirring device is arranged inside a particle layer, resulting in complicate equipment and mechanical failure. The particle bed dust removing device comprises a housing (3), wherein a solid particle filter material inlet (1) is arranged at the center of the upper part of the housing; a solid particle outlet (5) is arranged at the center of the lower part of the housing; a gas outlet (2) and a smoke outlet (7) are arranged at two upper sides of the housing; a gas inlet (6) and a smoke inlet (4) are arranged at two lower sides of the housing; a multi-tube gas distributer (8) is arranged at the lower end inside the housing; and the multi-tube gas distributer is respectively connected with the gas inlet and the smoke inlet. The product is used for particle bed dust removal of the low-temperature dry distillation gas.
Description
Technical field:
the present invention relates to a kind of grain bed dust removal installation and method for dust removal of low-temperature pyrolysis coal gas.
Background technology:
coal is that its agent structure is a polymeric macromole aromatic nucleus by multiple elementary composition complex materials such as carbon, hydrogen, oxygen, and a certain amount of small molecule hydrocarbon compounds and heterogeneous ring compound are scattered here and there in the agent structure.In the low-temperature pyrolysis process, low-molecular-weight hydrocarbon compound can discharge from coal, after hydrotreatment, can obtain high-quality liquid fuel.Fluidized bed low temperature dry distillation technology can utilize fine coal to be raw material; With coal-fired boiler hot ash, hot semicoke or high-temperature gas is thermal source; Semi coking tar and high heating value gas are produced in low-temperature pyrolysis, realize coal grading upgrading utilization, have thermo-efficiency height, high, the simple advantage of equipment of tar yield.But because fluidized-bed process high cycle speed, dust entrainment are big, it is many to cause washing greasy filth, seriously polluted, and dust content is high in the tar that reclaims, the processing and utilization difficulty.
at present general smart method for dust removal of gas is used for the dedusting of destructive distillation gas and has significant limitation, main because: 1. the dry distillation gas temperature is high, general 400 ~ 600 ℃; 2. contain easy condensation and bonding macromole aromatic substance in the destructive distillation gas, cause filter stoppage easily; 3. etchant gas in the destructive distillation gas like hydrogen sulfide, ammonia equal size height, even contains basic metal, heavy metal steam etc.The granular-bed filter filtrate is easy to deashing because the particle resistance toheat is good, is difficult for stopping up, and is highly suitable for the dust removal and filtration of corrosive gases, is a kind of ideal high-temperature gas duster device.And, can adopt filtering material particle with chemical reactivity, realize that uniting of multiple pollutent removes.
granular-bed filter can be divided into fixed bed and moving-bed dual mode by the particle motion mode.Fixed bed filtering device efficiency of dust collection is high, and operating method is simple, but has some defectives in the practical application: 1. the screen cloth easy blocking and the breakage of support particles and distributing gas; 2. complete for deashing, whipping appts is set in the granular layer, cause complex equipmentsization, and be prone to mechanical fault.
Summary of the invention:
the purpose of this invention is to provide a kind of grain bed dust removal installation and method for dust removal of low-temperature pyrolysis coal gas; Adopt buried multitube gas distributor sparger in granular layer to replace the screen cloth and the air chamber of support particles layer, reduced equipment volume and difficulty of processing.
Above-mentioned purpose realizes through following technical scheme:
The grain bed dust removal installation of
a kind of low-temperature pyrolysis coal gas; Its composition comprises: housing; Described housing center upper portion place has solid particulate filtrate inlet; Described lower housing portion centre has the solid particulate outlet, and both sides, described housing top have gas exit and exhanst gas outlet, and described lower housing portion both sides have gas inlet and gas approach; The lower end of described enclosure interior is equipped with the multitube gas distributor, and described tubular gas sparger is connected with described gas approach with described gas inlet respectively.
The grain bed dust removal installation of
described low-temperature pyrolysis coal gas; Described multitube gas distributor is formed and is comprised main tracheae; The both sides level of described main tracheae is connected with a plurality of segmental bronchuses, and described segmental bronchus downside connects a plurality of short tubes of giving vent to anger vertically downward.
The grain bed dust removal installation of
described low-temperature pyrolysis coal gas, the diameter of the described short tube of giving vent to anger is 10 ~ 40mm, length is 2 ~ 5 times of diameter.
The grain bed method for dust removal of
a kind of low-temperature pyrolysis coal gas; This method may further comprise the steps: open the flue gas mouth behind the material of packing into; Switching hot flue gas is inert hot gas, purges strainer, and the volumetric concentration of the oxygen in exit gas is lower than 0.5%; Close described gas approach, shedding is carried out in the import that turns on the gas-fire; Open gas approach, feed inert hot gas, feed the oxygen enrichment high-temperature flue gas from described gas approach; Described flue gas is crossed gas speed a 0.5 ~ 2m/s through granular layer; Close described gas approach, open described gas inlet, repeat to purge strainer operation afterwards.
The grain bed method for dust removal of
described low-temperature pyrolysis coal gas is opened the flue gas mouth behind the described material of packing into; From the solid particulate filtrate inlet strainer of packing into, it highly is the granular layer of 0.5 ~ 1.5m that solid particulate forms in strainer with the solid particulate filtrate of particle diameter 0.5 ~ 5mm; Open gas approach, feed the hot flue gas of 300 ~ 500 ℃ of temperature, hot flue gas, is discharged from exhanst gas outlet from bottom to top through granular layer through the multitube sparger, and the heated particle layer is to 300-500 ℃.
The grain bed method for dust removal of
described low-temperature pyrolysis coal gas is describedly closed described gas approach, and import turns on the gas-fire; Open gas approach, feed the concrete operations of inert hot gas part: from bottom to top through granular layer, 300 ~ 500 ℃ of control granular layer temperature are filtered gas speed 0.1 ~ 0.5m/s through described multitube sparger, and the clean gas that removes dust is discharged from gas exit; After the granular layer dust content is saturated, close described dry distillation gas inlet, open gas approach; Feeding temperature is 300 ~ 500 ℃ of inert hot gas; Purge strainer, sweep gas is discharged from described exhanst gas outlet, and the inflammable gas volumetric concentration is lower than 5% in exit gas.
The grain bed method for dust removal of
described low-temperature pyrolysis coal gas, described from gas approach feeding oxygen enrichment high-temperature flue gas, described flue gas is crossed gas speed a 0.5 ~ 2m/s through granular layer; Closing described gas approach, open described gas inlet, is to feed 400 ~ 600 ℃ of temperature from described gas approach; The carrier of oxygen volume concentrations is greater than 5% oxygen enrichment high-temperature flue gas; Described flue gas all with after distributing passes through granular layer through the multitube sparger, controls bed gas speed a 0.5 ~ 2m/s, makes filtering material particle be in fluidized state; Deposition dust in the eliminating particle filtering layer and tar bur, ash-laden gas is discharged from described exhanst gas outlet; After granular layer was removed dust, feeding temperature from described gas approach was that 300 ~ 500 ℃ of inert hot gas purge strainer, and sweep gas is discharged from described exhanst gas outlet, and the volumetric concentration of oxygen is lower than 0.5% in exit gas.
The grain bed method for dust removal of
described low-temperature pyrolysis coal gas, the spherical alumina that described solid particulate filtrate is silica sand, Wingdale, iron ore particle or moulding, silicon oxide ceramics microballoon.
The grain bed method for dust removal of
described low-temperature pyrolysis coal gas, described inert hot gas are that nitrogen, superheated vapour, carrier of oxygen volume concentrations are lower than one or more the gas mixture in 0.5% the flue gas.
Beneficial effect:
1. present device have reduced equipment volume and difficulty of processing, and through the suitable gas distributor pressure drop of design, can guarantee the uniform distribution of gas in granular layer.During dust removal by filtration, the multitube gas distributor can be on the granular layer cross section uniform distribution carbonizing gas, cross bed gas speed less than the particulate minimum fluidization velocity, granular layer is in the fixed bed form.During reverse gas cleaning, feed the oxygen containing hot flue gas of high temperature, cross bed gas speed, make bed be in fluidized state, remove the dust deposit in the granular layer greater than the particulate minimum fluidization velocity from the multitube gas distributor.Oxygen gas can oxidizing fire sticks to the tar bur of particle surface, improves the speed and the efficient of deashing.Form explosion gas in order to prevent that oxygen-containing gas and dry distillation gas from mixing, before and after the deashing, adopt the inert gas purge strainer, guarantee that inflammable gas or oxygen level are in outside the limits of explosion.
immobilized particles bed filter 2. of the present invention is compared with existing apparatus; Adopt buried multitube gas distributor sparger in granular layer to replace the screen cloth and the air chamber of support particles layer; Reduce equipment volume and difficulty of processing, reduced equipment manufacturing cost.Sparger is made up of the person in charge, the arm of different diameter, arranges a plurality of short tubes of giving vent to anger on the arm.Giving vent to anger, Open Side Down for short tube, and gas is at first flowed out downwards at a high speed from short tube, flows through granular layer on the counter steer again.High velocity air and particulate collision can improve the granular layer efficiency of dust collection.This structure has been saved the air chamber of conventional granulates layer strainer, and sparger itself do not bear bed weight, and sealing and thermal expansion problem also solution have easily reduced equipment volume and difficulty of processing.And, overcome granular layer and leaked material and the susceptible to plugging problem of screen cloth.
Description of drawings:
accompanying drawing 1 is a structural representation of the present invention.
accompanying drawing 2 is structural representations of multitube gas distributor in the accompanying drawing 1.
accompanying drawing 3 is vertical views of accompanying drawing 2.
Embodiment:
Embodiment 1:
The grain bed dust removal installation of
a kind of low-temperature pyrolysis coal gas; Its composition comprises: housing 3; Described housing center upper portion place has solid particulate filtrate inlet 1; Described lower housing portion centre has solid particulate outlet 5, and both sides, described housing top have gas exit 2 and exhanst gas outlet 7, and described lower housing portion both sides have gas inlet 6 and gas approach 4; The lower end of described enclosure interior is equipped with multitube gas distributor 8, and described tubular gas sparger is connected with described gas approach with described gas inlet respectively.
Embodiment 2:
The grain bed dust removal installation of the low-temperature pyrolysis coal gas that
are above-mentioned; Described multitube gas distributor is formed and is comprised main tracheae 9; The both sides level of described main tracheae is connected with a plurality of segmental bronchuses 10, and described segmental bronchus downside connects a plurality of short tubes 11 of giving vent to anger vertically downward.
Embodiment 3:
The grain bed dust removal installation of the low-temperature pyrolysis coal gas that
are above-mentioned, the diameter of the described short tube of giving vent to anger is 10 ~ 40mm, length is 2 ~ 5 times of diameter.
Embodiment 4:
The grain bed method for dust removal of
a kind of low-temperature pyrolysis coal gas; This method may further comprise the steps: open the flue gas mouth behind the material of packing into; Switching hot flue gas is inert hot gas, purges strainer, and the volumetric concentration of the oxygen in exit gas is lower than 0.5%; Close described gas approach, shedding is carried out in the import that turns on the gas-fire; Open gas approach, feed inert hot gas, feed the oxygen enrichment high-temperature flue gas from described gas approach; Described flue gas is crossed gas speed a 0.5 ~ 2m/s through granular layer; Close described gas approach, open described gas inlet, repeat to purge strainer operation afterwards.
Embodiment 5:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned is opened the flue gas mouth behind the described material of packing into; From the solid particulate filtrate inlet strainer of packing into, it highly is the granular layer of 0.5 ~ 1.5m that solid particulate forms in strainer with the solid particulate filtrate of particle diameter 0.5 ~ 5mm; Open gas approach, feed the hot flue gas of 300 ~ 500 ℃ of temperature, hot flue gas, is discharged from exhanst gas outlet from bottom to top through granular layer through the multitube sparger, and the heated particle layer is to 300-500 ℃.
Embodiment 6:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned is describedly closed described gas approach, and import turns on the gas-fire; Open gas approach, feed the concrete operations of inert hot gas part: from bottom to top through granular layer, 300 ~ 500 ℃ of control granular layer temperature are filtered gas speed 0.1 ~ 0.5m/s through described multitube sparger, and the clean gas that removes dust is discharged from gas exit; After the granular layer dust content is saturated, close described dry distillation gas inlet, open gas approach; Feeding temperature is 300 ~ 500 ℃ of inert hot gas; Purge strainer, sweep gas is discharged from described exhanst gas outlet, and the inflammable gas volumetric concentration is lower than 5% in exit gas.
Embodiment 7:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, described from gas approach feeding oxygen enrichment high-temperature flue gas, described flue gas is crossed gas speed a 0.5 ~ 2m/s through granular layer; Closing described gas approach, open described gas inlet, is to feed 400 ~ 600 ℃ of temperature from described gas approach; The carrier of oxygen volume concentrations is greater than 5% oxygen enrichment high-temperature flue gas; Described flue gas all with after distributing passes through granular layer through the multitube sparger, controls bed gas speed a 0.5 ~ 2m/s, makes filtering material particle be in fluidized state; Deposition dust in the eliminating particle filtering layer and tar bur, ash-laden gas is discharged from described exhanst gas outlet; After granular layer was removed dust, feeding temperature from described gas approach was that 300 ~ 500 ℃ of inert hot gas purge strainer, and sweep gas is discharged from described exhanst gas outlet, and the volumetric concentration of oxygen is lower than 0.5% in exit gas.
Embodiment 8:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, the spherical alumina that described solid particulate filtrate is silica sand, Wingdale, iron ore particle or moulding, silicon oxide ceramics microballoon.
Embodiment 9:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, described inert hot gas are that nitrogen, superheated vapour, carrier of oxygen volume concentrations are lower than one or more the gas mixture in 0.5% the flue gas.
Embodiment 10:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, when the solid particulate filtrate that adopts is a silica sand, particle diameter 1 ~ 2mm.
operational condition is: 400 ~ 450 ℃ of service temperatures, working pressure 50 ~ 70KPa (gauge pressure).Fluidized-bed solid thermal carriers low-temperature pyrolysis raw gas consists of (volume fraction): hydrogen content is 15 ~ 20%; Carbon monoxide content 6 ~ 10%, methane content 30 ~ 35%, carbon dioxide content 10 ~ 15%; A nitrogen content 2 ~ 5%; Water-content 8 ~ 12%, tar component content 15 ~ 20%, small molecules hydrocarbon gas content 2 ~ 4%; Other gas content: 0.2 ~ 0.5%.Dust content 0.8 ~ 1.1g/m in the raw gas
3
At first, from the charging opening strainer of packing into, solid particulate is free accumulation in strainer with quartz sand particle, forms the granular layer of height 1.0m; Then, open gas approach, feed the hot flue gas of 450 ℃ of temperature; Hot flue gas, is discharged from exhanst gas outlet from bottom to top through granular layer through the multitube sparger, behind the heated particle layer to 400 ℃; Switching hot flue gas is the preheating nitrogen of 350 ℃ of temperature, purges strainer, after the volumetric concentration of the oxygen in exit gas is lower than 0.5%; Close gas approach, the import that turns on the gas-fire is evenly passed through granular layer from the dust-laden raw gas of low-temperature pyrolysis stove from bottom to top by the multitube gas distributor; 400 ~ 450 ℃ of control granular layer temperature are filtered gas speed 0.3m/s, and the clean gas that removes dust is discharged from gas exit.After the granular layer dust content is saturated, close the dry distillation gas inlet, open gas approach, the feeding temperature is 350 ℃ a preheating nitrogen, purges strainer, and sweep gas is discharged from exhanst gas outlet, and the inflammable gas volumetric concentration is lower than 5% in exit gas; Then; Feed 600 ℃ of temperature from gas approach, the high temperature oxygen gas of carrier of oxygen volume concentrations 7 ~ 8%, flue gas all with after distributing passes through granular layer through the multitube sparger; Controlled bed gas speed 1.5m/s; Make filtering material particle be in fluidized state, deposition dust in the eliminating particle filtering layer and tar bur, ash-laden gas is discharged from exhanst gas outlet.After granular layer is removed dust, be 350 ℃ preheating nitrogen once more from gas approach feeding temperature, purge strainer, sweep gas is discharged from exhanst gas outlet, and the volumetric concentration of oxygen is lower than 0.5% in exit gas.Then, close gas approach, open the dry distillation gas import, repeat the aforesaid operations step, carry out dust removal operation.In 72 hours technology experimentations, the dust content that purifies the back dry distillation gas is lower than 20mg/h, and efficiency of dust collection is greater than 98%, and sreen analysis shows that the above particle of particle diameter 10 μ m can all remove.
Embodiment 11:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, when the solid particulate filtrate that adopts is a silica sand, particle diameter 0.5 ~ 1.5mm.
operational condition is: 450 ~ 500 ℃ of service temperatures, working pressure 50 ~ 70KPa (gauge pressure).Fluidized-bed solid thermal carriers low-temperature pyrolysis raw gas composition and dust content are with instance 7.The mean thickness 0.5m of strainer internal granular layer.The dust-laden raw gas filters gas speed 0.1m/s, fluidisation blowback air speed 1.0m/s, and operation steps is with instance 7.Dust content is lower than 20mg/h in the dry distillation gas after the purification, and efficiency of dust collection is greater than 98%, and sreen analysis shows that the above particle of particle diameter 10 μ m can all remove.
Embodiment 12:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, when the solid particulate filtrate that adopts is a Wingdale, particle diameter 0.5 ~ 1.0mm.
operational condition is: 400 ~ 450 ℃ of service temperatures, working pressure 50 ~ 70KPa (gauge pressure).Fluidized-bed solid thermal carriers low-temperature pyrolysis raw gas composition and dust content are with instance 7.The mean thickness 1.0m of strainer internal granular layer.The dust-laden raw gas filters gas speed 0.1m/s, fluidisation blowback air speed 0.8m/s, and operation steps is with instance 7.Dust content is lower than 10mg/h in the dry distillation gas after the purification, and efficiency of dust collection is greater than 99%, and sreen analysis shows that the above particle of particle diameter 10 μ m can all remove.
Embodiment 13:
The grain bed method for dust removal of the low-temperature pyrolysis coal gas that
are above-mentioned, when the solid particulate filtrate that adopts is a Wingdale, particle diameter 1.0 ~ 1.5mm.
operational condition is: 450 ~ 500 ℃ of service temperatures, working pressure 50 ~ 70KPa (gauge pressure).Fluidized-bed solid thermal carriers low-temperature pyrolysis raw gas composition and dust content are with instance 7.The mean thickness 0.5m of strainer internal granular layer.The dust-laden raw gas filters gas speed 0.2m/s, fluidisation blowback air speed 1.0m/s, and operation steps is with instance 7.Dust content is lower than 40mg/h in the dry distillation gas after the purification, and efficiency of dust collection is greater than 96%, and sreen analysis shows that the above particle of particle diameter 10 μ m can all remove.
Claims (9)
1. the grain bed dust removal installation of a low-temperature pyrolysis coal gas; Its composition comprises: housing; It is characterized in that: described housing center upper portion place has solid particulate filtrate inlet; Described lower housing portion centre has the solid particulate outlet, and both sides, described housing top have gas exit and exhanst gas outlet, and described lower housing portion both sides have gas inlet and gas approach; The lower end of described enclosure interior is equipped with the multitube gas distributor, and described tubular gas sparger is connected with described gas approach with described gas inlet respectively.
2. the grain bed dust removal installation of low-temperature pyrolysis coal gas according to claim 1; It is characterized in that: described multitube gas distributor is formed and is comprised main tracheae; The both sides level of described main tracheae is connected with a plurality of segmental bronchuses, and described segmental bronchus downside connects a plurality of short tubes of giving vent to anger vertically downward.
3. the grain bed dust removal installation of low-temperature pyrolysis coal gas according to claim 1 and 2 is characterized in that: the diameter of the described short tube of giving vent to anger is 10 ~ 40mm, and length is 2 ~ 5 times of diameter.
4. the grain bed method for dust removal of a low-temperature pyrolysis coal gas; It is characterized in that: this method may further comprise the steps: open the flue gas mouth behind the material of packing into; Switching hot flue gas is inert hot gas, purges strainer, and the volumetric concentration of the oxygen in exit gas is lower than 0.5%; Close described gas approach, shedding is carried out in the import that turns on the gas-fire; Open gas approach, feed inert hot gas, feed the oxygen enrichment high-temperature flue gas from described gas approach; Described flue gas is crossed gas speed a 0.5 ~ 2m/s through granular layer; Close described gas approach, open described gas inlet, repeat to purge strainer operation afterwards.
5. the grain bed method for dust removal of low-temperature pyrolysis coal gas according to claim 4 is characterized in that: open the flue gas mouth behind the described material of packing into; From the solid particulate filtrate inlet strainer of packing into, it highly is the granular layer of 0.5 ~ 1.5m that solid particulate forms in strainer with the solid particulate filtrate of particle diameter 0.5 ~ 5mm; Open gas approach, feed the hot flue gas of 300 ~ 500 ℃ of temperature, hot flue gas, is discharged from exhanst gas outlet from bottom to top through granular layer through the multitube sparger, and the heated particle layer is to 300-500 ℃.
6. according to the grain bed method for dust removal of claim 4 or 5 described low-temperature pyrolysis coal gas, it is characterized in that: describedly close described gas approach, import turns on the gas-fire; Open gas approach, feed the concrete operations of inert hot gas part: from bottom to top through granular layer, 300 ~ 500 ℃ of control granular layer temperature are filtered gas speed 0.1 ~ 0.5m/s through described multitube sparger, and the clean gas that removes dust is discharged from gas exit; After the granular layer dust content is saturated, close described dry distillation gas inlet, open gas approach; Feeding temperature is 300 ~ 500 ℃ of inert hot gas; Purge strainer, sweep gas is discharged from described exhanst gas outlet, and the inflammable gas volumetric concentration is lower than 5% in exit gas.
7. according to the grain bed method for dust removal of claim 4 or 5 or 6 described low-temperature pyrolysis coal gas, it is characterized in that: described from gas approach feeding oxygen enrichment high-temperature flue gas, described flue gas is crossed gas speed a 0.5 ~ 2m/s through granular layer; Closing described gas approach, open described gas inlet, is to feed 400 ~ 600 ℃ of temperature from described gas approach; The carrier of oxygen volume concentrations is greater than 5% oxygen enrichment high-temperature flue gas; Described flue gas all with after distributing passes through granular layer through the multitube sparger, controls bed gas speed a 0.5 ~ 2m/s, makes filtering material particle be in fluidized state; Deposition dust in the eliminating particle filtering layer and tar bur, ash-laden gas is discharged from described exhanst gas outlet; After granular layer was removed dust, feeding temperature from described gas approach was that 300 ~ 500 ℃ of inert hot gas purge strainer, and sweep gas is discharged from described exhanst gas outlet, and the volumetric concentration of oxygen is lower than 0.5% in exit gas.
8. according to the grain bed method for dust removal of claim 4 or 5 or 6 or 7 described low-temperature pyrolysis coal gas, it is characterized in that: the spherical alumina that described solid particulate filtrate is silica sand, Wingdale, iron ore particle or moulding, silicon oxide ceramics microballoon.
9. according to the grain bed method for dust removal of claim 4 or 5 or 6 or 7 described low-temperature pyrolysis coal gas, it is characterized in that: described inert hot gas is that nitrogen, superheated vapour, carrier of oxygen volume concentrations are lower than one or more the gas mixture in 0.5% the flue gas.
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| CN103042022A (en) * | 2012-12-05 | 2013-04-17 | 广东德诚环保科技有限公司 | Fly ash processing method |
| CN103712230A (en) * | 2013-12-21 | 2014-04-09 | 华中科技大学 | Built-in oxygen injection device for coal-fired power generation oxygen-enriched combustion |
| CN104226064A (en) * | 2014-09-24 | 2014-12-24 | 神木县三江煤化工有限责任公司 | Dust removing device for dust-containing retorting gas |
| CN104449879A (en) * | 2014-11-07 | 2015-03-25 | 王树宽 | Dust removal system and method for raw coke oven gas by virtue of rotary type fixed bed |
| CN107138001A (en) * | 2017-06-30 | 2017-09-08 | 中国科学院工程热物理研究所 | Grain bed dedusting and heat-exchange integrated device and method |
| CN110527562A (en) * | 2019-09-18 | 2019-12-03 | 王树宽 | A kind of pyrolysis raw coke oven gas bonding dust removal method and moving bed filter collector |
| CN114674545A (en) * | 2022-05-26 | 2022-06-28 | 中国航发四川燃气涡轮研究院 | Experimental system and method for determining particle deposition part of turbine blade |
| CN116351197A (en) * | 2023-06-01 | 2023-06-30 | 中国华能集团清洁能源技术研究院有限公司 | Flue gas distributor, adsorption tower and low-temperature flue gas adsorption system |
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