CN202237788U - Double powder spraying device for refuse burning smoke purifying system - Google Patents
Double powder spraying device for refuse burning smoke purifying system Download PDFInfo
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- CN202237788U CN202237788U CN2011203154272U CN201120315427U CN202237788U CN 202237788 U CN202237788 U CN 202237788U CN 2011203154272 U CN2011203154272 U CN 2011203154272U CN 201120315427 U CN201120315427 U CN 201120315427U CN 202237788 U CN202237788 U CN 202237788U
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- active carbon
- calcium hydroxide
- air inlet
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Abstract
The utility model relates to a double powder spraying device for a refuse burning smoke purifying system, which comprises an activated carbon powder storing device, a slaked lime powder storing device, an activated carbon quantitatively feeding device, a slaked lime quantitatively feeding device, an activated carbon air inlet tube, a slaked lime air inlet tube, a compressed air spraying blow device and a mixer. The activated carbon powder storing device, the activated carbon quantitatively feeding device and the activated carbon air inlet tube are sequentially communicated with the mixer, and the slaked lime powder storing device, the slaked lime quantitatively feeding device and the slaked lime air inlet tube are sequentially communicated with the mixer. Both the activated carbon air inlet tube and the slaked lime air inlet tube are further communicated with the compressed air spraying blow device, the mixer is further communicated at the front end of a flue of the refuse burning smoke purifying system and communicated with a bag-type dust collector at the tail end of the flue. The double powder spraying device can effectively absorb acid substances, dioxin and the like in refuse burning smoke by spraying activated carbon and slaked lime powders so as to reduce environment pollution.
Description
Technical field
The utility model relates to the garbage-incineration smoke purifying system, refers in particular to the extra quality dusting device that is used for this cleaning system.
Background technology
Along with the continuous propelling of rapid development of economy and urbanization, a large amount of rubbish that produce every day have caused serious pollution to environment, and more effective solution is all being tried to explore in countries in the world.Comparatively speaking, burning method and data by MoM and MEI have the advantages that floor space is little, addressing easy, technology is reliable and integrated level is high, automaticity is high, be convenient to manage, and more meet garbage disposal minimizing, resource and innoxious improvement principle.But during waste incineration, the flue gas that it produced is still a big problem to the pollution of environment.Produce a large amount of dense smoke and poisonous fume during waste incineration, can be divided into particle (dust), sour gas (hydrogen chloride HCL, hydrogen fluoride HF, oxysulfide SO
X, nitrogen oxide NO
X), four big types of heavy metal (mercury Hg, plumbous Pb, chromium Cr etc.) and organic hypertoxicity pollutants (dioxin, furans etc.); In order to prevent in the waste incineration process environment to be produced secondary pollution; Must adopt rigid measures, such as the discharging that utilizes flue gas purification system control flue gas of refuse burning.
In the garbage incinerating system running, in sack cleaner and semidry method extracting tower and time spent, except mercury; To most of heavy metals removal effect all very good, the flue-gas temperature that gets into sack cleaner is low more, removal effect is good more; But for keeping the normal running of sack cleaner, flue-gas temperature must not be reduced to below the dew point, condenses in order to avoid cause acid mist; Cause the cloth bag corrosion, or block, but the mercury metal is because its saturated vapour pressure is higher because of condensation vapor makes whole cloth bag; Under higher temperature, be difficult for condensing, thereby be difficult to all removed by the pocket type deduster.
The utility model content
The purpose of the utility model is to provide a kind of extra quality dusting device that is used for the garbage-incineration smoke purifying system; The use of its nertralizer is regulated flexibly; Load adaptability is strong; Through spraying into active carbon and calcium hydroxide powder, reduce the concentration of emission and the environmental pollution degree of heavy metal Hg with acidic materials and dioxin-like chemical in effective absorption flue gas of refuse burning.
The utility model solves the problems of the technologies described above through adopting following technical scheme: the extra quality dusting device that is used for the garbage-incineration smoke purifying system; Comprise active carbon powder storage device, calcium hydroxide powder storage device, active carbon metering device, calcium hydroxide metering device, active carbon air inlet pipe, calcium hydroxide air inlet pipe, compressed air spraying device and blender; Active carbon powder storage device, active carbon metering device and active carbon air inlet pipe order successively are communicated to blender; Calcium hydroxide powder storage device, calcium hydroxide metering device and calcium hydroxide air inlet pipe also are communicated to blender successively in proper order; Active carbon air inlet pipe and calcium hydroxide air inlet pipe also all are communicated with the compressed air spraying device; Blender then further turns on the flue front end of garbage-incineration smoke purifying system, at the terminal sack cleaner of connecting of flue.
Further; Said active carbon powder storage device and calcium hydroxide powder storage device are hermetically-sealed construction; Include cylindrical shell, taper discharge bucket, reinforced cover plate and charging aperture, said reinforced cover plate and charging aperture are located at the upper end of cylindrical shell, and the lower end of cylindrical shell connects the taper discharge bucket.
The first negative pressure connector and the second negative pressure connector that are respectively equipped with on active carbon powder storage device and the calcium hydroxide powder storage device all are communicated to blender.
The said first negative pressure connector and the second negative pressure connector all are arranged on the cylindrical shell upper end; Adopt the PVC soft pipe connection to blender; Can effectively prevent the storage device malleation, medicament is kicked up in storage device when avoiding charging, avoids wet gas to get into storage device and causes the material caking phenomenon.
Further, be equipped with agitator and electromagnetic shaker in said active carbon powder storage device and the calcium hydroxide powder storage device, effectively prevent the medicament bridge formation.
Further; The active carbon metering device comprises first reducing motor and Alveolus type first disc structure that is connected with first reducing motor; The entrance point of corresponding bottom first disc structure of active carbon powder storage device is communicated with setting; The calcium hydroxide metering device comprises second reducing motor and Alveolus type second disc structure that is connected with second reducing motor, and the entrance point of corresponding bottom second disc structure of calcium hydroxide powder storage device is communicated with setting.
Said active carbon metering device also comprises first control valve of the rotating speed of controlling first reducing motor; The calcium hydroxide metering device also comprises second control valve of the rotating speed of controlling second reducing motor, and first disc structure and second disc structure are located at the carriage center of active carbon metering device and calcium hydroxide metering device respectively.
The port of export of said first disc structure is communicated with setting with the middle part of active carbon air inlet pipe; The port of export of second disc structure is communicated with setting with the middle part of calcium hydroxide air inlet pipe; The compressed air spraying device is communicated with an end of active carbon air inlet pipe and calcium hydroxide air inlet pipe respectively; After merging through conveyance conduit, the other end of the other end of active carbon air inlet pipe and calcium hydroxide air inlet pipe is communicated to the middle part of blender; One end of blender connects the cooling tower of garbage-incineration smoke purifying system, and the other end is connected to the flue front end.
Further; The extra quality dusting device of said suction type also comprises rapping apparatus, and rapping apparatus comprises the 3rd reducing motor, connecting axle and two cam gears, and the 3rd reducing motor is connected to the middle part of connecting axle; The two ends of connecting axle connect two cam gears respectively; Two cam gears are separately positioned on the outer wall of the taper discharge bucket of active carbon powder storage device and calcium hydroxide powder storage device, drive two cam gear actions through the rotating speed of regulating the 3rd reducing motor, thereby realize the intermittence of active carbon and calcium hydroxide powder storage device is continued rapping; Make attached to the powder on the inwall to come off, discharging is unimpeded.
Further, said blender is a venturi mixer.
The beneficial effect of the extra quality dusting device that the utility model is realized is:
1, utilizes in the pipeline of system's negative pressure before sack cleaner and spray into a certain amount of powdered active carbon and pulverized limestone; Utilize venturi mixer that medicament and flue gas are evenly mixed; Can less emitted dose and obtain the best purification adsorption effect, because of being Powdered, so tiny dispersion in flue; High adsorption capacity; The flying dust amount increases hardly, and active carbon and calcium hydroxide powder can effectively adsorb acidic materials and the dioxin-like chemical in the flue gas of refuse burning, reduces the concentration of emission and the environmental pollution degree of heavy metal Hg;
2, the volume of disk teeth groove is certain; Then the feeding coal that whenever turns around of disk is certain, and the reducing motor direct connection drives, and the disk revolution is certain in the unit interval; So metering device is realized dosing accurately; Through regulating rotating speed and the gas pressure of compressed air spraying device and the powder outlet quantity that flow is controlled disc structure of reducing motor, can realize the continuous adjustment of feeding coal, thereby control sprays into the amount of powder of flue;
3, flexible operation is reliable, and active carbon metering device and calcium hydroxide metering device are equipped with two reducing motors respectively, both can move simultaneously; Also can operate separately; The compressed air that provides, flow and constant pressure cooperate with reducing motor; Keep stable powder gas mixing ratio, pipeline blockage can not take place;
4, cost of investment is low, and is simple in structure, and floor space is little, and sealing is strong, and non-secondary pollution all adopts associated mode between reducing motor and the disc structure, makes whole metering device space structure compact, and installation and maintenance are convenient;
5, auxiliary energy consumption is low, has adopted less drive apparatus, and drive apparatus all adopts advanced variable frequency adjustment technology, and its auxiliary energy consumption is less, and load adaptability is strong.
Description of drawings
Fig. 1 is the structural representation of the described extra quality dusting device of the utility model;
Fig. 2 is to be the sketch map of the described disc structure of the utility model;
Fig. 3 is the described rapping apparatus biopsy cavity marker devices of a utility model sketch map;
Fig. 4 is the workflow sketch of the utility model; Wherein,
representes ball valve, and arrow is represented charging.
The specific embodiment
Combine Fig. 1～3 that the best-of-breed technology scheme of the utility model is described in further detail: a kind of extra quality dusting device 1 that is used for the garbage-incineration smoke purifying system at present; The garbage-incineration smoke purifying system comprises the extra quality dusting device 1 that turns on flue 2 front ends; Turn on the sack cleaner 3 of flue 2 ends, and cooling tower 4.Said extra quality dusting device 1 comprises active carbon powder storage device 11; Calcium hydroxide powder storage device 12, active carbon metering device 13, calcium hydroxide metering device 14; Active carbon air inlet pipe 15; Calcium hydroxide air inlet pipe 16, compressed air spraying device 17, blender 18 and rapping apparatus 19, active carbon powder storage device 11, active carbon metering device 13 and active carbon air inlet pipe 15 are docile and obedient preface and are communicated to blender 18; Calcium hydroxide powder storage device 12, calcium hydroxide metering device 14 and calcium hydroxide air inlet pipe 16 also are docile and obedient preface and are communicated to blender 18, and compressed air spraying device 17 is communicated to active carbon air inlet pipe 15 and calcium hydroxide air inlet pipe 16 respectively.
Said active carbon powder storage device 11 is a hermetically-sealed construction; Comprise cylindrical shell 111, taper discharge bucket 112, reinforced cover plate 113 and charging aperture 114; Reinforced cover plate 113 and charging aperture 114 are located at the upper end of cylindrical shell 111, and the lower end of cylindrical shell 111 connects taper discharge bucket 112, and cylindrical shell 111 upper ends of active carbon powder storage device 11 also are provided with the first negative pressure connector 115; This first negative pressure connector 115 adopts PVC flexible pipe 116 to be communicated to blender 18; Calcium hydroxide powder storage device 12 also is a hermetically-sealed construction, and its concrete structure is identical with active carbon powder storage device 11, does not do at this and gives unnecessary details and mark; The second negative pressure connector 121 that which is provided with and the first negative pressure connector 115 are through the PVC soft pipe connection; Finally be communicated to blender 18, be equipped with agitator (not shown), electromagnetic shaker (not shown) and material level induction meter 117 in said active carbon powder storage device 11 and the calcium hydroxide powder storage device 12, material level induction meter 117 is used for lacking the material warning and the prompting of feeding in raw material; Simultaneously, active carbon powder storage device 11 also is provided with electric heater unit (not shown) with calcium hydroxide powder storage device 12 outer walls.
Said active carbon metering device 13; Comprise first reducing motor 131 and Alveolus type first disc structure 132 that is connected with first reducing motor 131; And first control valve (not shown) of controlling the rotating speed of first reducing motor 131; First disc structure 132 (concrete structure can referring to Fig. 2) is located at the carriage center of active carbon metering device 13, active carbon powder storage device 11 also be that the entrance point of terminal corresponding first disc structure 132 of taper discharge bucket 112 is communicated with and is provided with bottom; Calcium hydroxide metering device 14 comprises second reducing motor 141 and Alveolus type second disc structure 142 that is connected with second reducing motor 141; And second control valve (not shown) of controlling the rotating speed of second reducing motor 141; Second disc structure 142 is located at the carriage center of calcium hydroxide metering device 14, and the entrance point of corresponding bottom second disc structure 142 of calcium hydroxide powder storage device 12 is communicated with setting.
The port of export of said first disc structure 132 is communicated with setting with the middle part of active carbon air inlet pipe 15; The port of export of second disc structure 142 is communicated with setting with the middle part of calcium hydroxide air inlet pipe 16; Compressed air spraying device 17 is communicated with an end of active carbon air inlet pipe 15 and calcium hydroxide air inlet pipe 16 respectively; After merging through active carbon conveyance conduit 151 and calcium hydroxide conveyance conduit 161, the other end of the other end of active carbon air inlet pipe 15 and calcium hydroxide air inlet pipe 16 is communicated to the middle part of blender 18; One end of blender 18 connects the cooling tower 4 of garbage-incineration smoke purifying system; The other end is connected to flue 2 front ends, and said blender 18 is a venturi mixer, and compressed air spraying device 17 is specially air compressor machine.
Said rapping apparatus 19 (concrete structure can referring to Fig. 3) comprises the 3rd reducing motor 191, connecting axle 192 and two cam gears 193; The 3rd reducing motor 191 is connected to the middle part of connecting axle 192; The two ends of connecting axle 192 connect said cam gear 193 respectively; Two cam gears 193 are separately positioned on the outer wall of the taper discharge bucket of active carbon powder storage device 11 and calcium hydroxide powder storage device 11, drive 193 actions of two cam gears through the rotating speed of regulating the 3rd reducing motor 191.
In the present embodiment, active carbon powder storage device 11 utilizes axial region mounting flange 133 to link to each other with active carbon metering device 13; Because active carbon, calcium hydroxide be the moisture absorption very easily; Therefore carry out moisture preventive measure, active carbon powder storage device 11 or calcium hydroxide powder storage device 12 all adopt the totally-enclosed form, such as; When reinforced; Active carbon powder imports charging aperture 114 through artificial broken bag, fills the back with seal cover board 113 sealings, makes moist to avoid material to contact with outside air; Said garbage-incineration smoke purifying system adopts the PLC system to control.
See also Fig. 4, the operation logic of the utility model is following: be example with the active carbon powder, active carbon powder is delivered in the active carbon powder storage device 11 through charging aperture 114; Active carbon powder in the taper discharge bucket 112 drives under 132 rotations of first disc structure at first reducing motor 131 then; Because the volume of teeth groove is certain; Then can realize quantitatively feeding active carbon air inlet pipe 15, meanwhile, the pressure-air of compressed air spraying device 17 is blown into from an end of active carbon air inlet pipe 15; Make active carbon powder get into conveyance conduit 151, arrive blender 18 then from the other end of active carbon air inlet pipe 15; In like manner, the running of calcium hydroxide powder is not done and is given unnecessary details too; Active carbon and calcium hydroxide powder are fully mixed in blender 18, and flue gas is flowed through and speeded up behind the blender 18, and mixes mutually with reactant (active carbon, calcium hydroxide) powder at this; Acutely friction between the particle, between gas and the particle; Form fluid bed, carry the flue gas of a large amount of solid particles after the reaction and discharge, arrive the flue 2 before the sack cleaner 3 at last from blender 18 outlets; After particular location is the flue gas turbulent flow sheet of smoke cooling tower exhaust pass; The powder that sprays at a high speed can produce strong turbulence effects after colliding with flue gas, makes powder and through the full and uniform mixing of flue gas behind the turbulent sheet, and harmful substance is fully reacted; Spray into flue 2 interior powder and will adsorb dioxin-like chemical and heavy metal in the flue gas; And adsorbed by filter bag during with flow of flue gas to sack cleaner 3 with dust in flue gas, filter bag is when filtering flue gas, and the active particles that is deposited on the filter cloth surface is further removed HCl, SO in the flue gas
2, harmful substance such as dioxin and heavy metal, and harmless salt (the calcium chloride CaCl that will finally produce
2, calcium sulfate CaSO
3) and deactivated active carbon powder discharge out of the furnace with dust.
In the foregoing description, the said first negative pressure connector 115 and the second negative pressure connector 121 can directly be communicated to blender 18 respectively with soft pipe fitting and be not limited to PVC flexible pipe 116; The other end of the other end of active carbon air inlet pipe 15 and calcium hydroxide air inlet pipe 16 can be communicated to the middle part of blender respectively through active carbon conveyance conduit 151 and calcium hydroxide conveyance conduit 161, be communicated to the middle part of blender 18 after being not limited to merge; The cam gear 193 of said rapping apparatus 19 is not limited to shared the 3rd reducing motor 191 and connecting axle 192, can adopt drive unit to drive respectively; Said first reducing motor 131, second reducing motor 141 and the 3rd reducing motor 191 can be not limited to reducing motor for the drive unit of other type.
Claims (10)
1. the extra quality dusting device that is used for the garbage-incineration smoke purifying system; It is characterized in that: this device comprises active carbon powder storage device, calcium hydroxide powder storage device, active carbon metering device, calcium hydroxide metering device, active carbon air inlet pipe, calcium hydroxide air inlet pipe, compressed air spraying device and blender; Active carbon powder storage device, active carbon metering device and active carbon air inlet pipe order successively are communicated to blender; Calcium hydroxide powder storage device, calcium hydroxide metering device and calcium hydroxide air inlet pipe also are communicated to blender successively in proper order; Active carbon air inlet pipe and calcium hydroxide air inlet pipe also all are communicated with the compressed air spraying device; Blender then further turns on the flue front end of garbage-incineration smoke purifying system, at the terminal sack cleaner of connecting of flue.
2. extra quality dusting device according to claim 1; It is characterized in that: said active carbon powder storage device and calcium hydroxide powder storage device are hermetically-sealed construction; Include cylindrical shell, taper discharge bucket, reinforced cover plate and charging aperture; Said reinforced cover plate and charging aperture are located at the upper end of cylindrical shell, and the lower end of cylindrical shell connects the taper discharge bucket.
3. extra quality dusting device according to claim 2 is characterized in that: the first negative pressure connector and the second negative pressure connector that are respectively equipped with on said active carbon powder storage device and the calcium hydroxide powder storage device all are communicated to blender.
4. extra quality dusting device according to claim 3 is characterized in that: the said first negative pressure connector and the second negative pressure connector all are arranged on the cylindrical shell upper end, adopt the PVC soft pipe connection to blender.
5. extra quality dusting device according to claim 1 is characterized in that: be equipped with agitator and electromagnetic shaker in said active carbon powder storage device and the calcium hydroxide powder storage device.
6. extra quality dusting device according to claim 1; It is characterized in that: said active carbon metering device comprises first reducing motor and Alveolus type first disc structure that is connected with first reducing motor; The entrance point of corresponding bottom first disc structure of active carbon powder storage device is communicated with setting; The calcium hydroxide metering device comprises second reducing motor and Alveolus type second disc structure that is connected with second reducing motor, and the entrance point of corresponding bottom second disc structure of calcium hydroxide powder storage device is communicated with setting.
7. extra quality dusting device according to claim 6; It is characterized in that: said active carbon metering device also comprises first control valve of the rotating speed of controlling first reducing motor; The calcium hydroxide metering device also comprises second control valve of the rotating speed of controlling second reducing motor, and first disc structure and second disc structure are located at the carriage center of active carbon metering device and calcium hydroxide metering device respectively.
8. extra quality dusting device according to claim 6; It is characterized in that: the port of export of first disc structure is communicated with setting with the middle part of active carbon air inlet pipe; The port of export of second disc structure is communicated with setting with the middle part of calcium hydroxide air inlet pipe; The compressed air spraying device is communicated with an end of active carbon air inlet pipe and calcium hydroxide air inlet pipe respectively; Be communicated to the middle part of blender after the other end of the other end of active carbon air inlet pipe and calcium hydroxide air inlet pipe merges through conveyance conduit, an end of blender connects the cooling tower of garbage-incineration smoke purifying system, and the other end is connected to the flue front end.
9. extra quality dusting device according to claim 2; It is characterized in that: said extra quality dusting device also comprises rapping apparatus; Rapping apparatus comprises the 3rd reducing motor, connecting axle and two cam gears; The 3rd reducing motor is connected to the middle part of connecting axle, and the two ends of connecting axle connect two cam gears respectively, and two cam gears are separately positioned on the outer wall of the taper discharge bucket of active carbon powder storage device and calcium hydroxide powder storage device.
10. extra quality dusting device according to claim 1 is characterized in that: said blender is a venturi mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203154272U CN202237788U (en) | 2011-08-25 | 2011-08-25 | Double powder spraying device for refuse burning smoke purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203154272U CN202237788U (en) | 2011-08-25 | 2011-08-25 | Double powder spraying device for refuse burning smoke purifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237788U true CN202237788U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203154272U Expired - Fee Related CN202237788U (en) | 2011-08-25 | 2011-08-25 | Double powder spraying device for refuse burning smoke purifying system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202237788U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798126A (en) * | 2012-08-31 | 2012-11-28 | 张家港长力机械有限公司 | Feed device used in garbage burning reaction furnace |
| CN103736353A (en) * | 2014-01-21 | 2014-04-23 | 泉州市天龙环境工程有限公司 | Spray paint organic solvent waste gas purifying device and solvent recycling method |
| CN104307354A (en) * | 2014-03-07 | 2015-01-28 | 绿色动力环保集团股份有限公司 | Quantitatively proportioning feeding method for deacidification purification system of fuel gas produced by domestic refuse incineration |
| CN108126431A (en) * | 2017-12-14 | 2018-06-08 | 杭州南方环境净化设备有限公司 | Non-ferrous metal metallurgy toxic metal steam smoke collecting device and method |
| CN108714336A (en) * | 2018-08-03 | 2018-10-30 | 华夏易能（广东）新能源科技有限公司 | A kind of dust purification auxiliary device, dust purification system and method |
| CN112221319A (en) * | 2020-10-09 | 2021-01-15 | 内蒙古工业大学 | Reactive type cooperative purification method and device for smoke pollutants |
| CN114471137A (en) * | 2022-03-14 | 2022-05-13 | 尊峰环保科技有限公司 | A medicament powder injection system for handling domestic waste burns flue gas |
-
2011
- 2011-08-25 CN CN2011203154272U patent/CN202237788U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798126A (en) * | 2012-08-31 | 2012-11-28 | 张家港长力机械有限公司 | Feed device used in garbage burning reaction furnace |
| CN103736353A (en) * | 2014-01-21 | 2014-04-23 | 泉州市天龙环境工程有限公司 | Spray paint organic solvent waste gas purifying device and solvent recycling method |
| WO2015109973A1 (en) * | 2014-01-21 | 2015-07-30 | 泉州市天龙环境工程有限公司 | Purification device for waste gas from paint spraying organic solvent and recovery method for solvent |
| CN104307354A (en) * | 2014-03-07 | 2015-01-28 | 绿色动力环保集团股份有限公司 | Quantitatively proportioning feeding method for deacidification purification system of fuel gas produced by domestic refuse incineration |
| CN108126431A (en) * | 2017-12-14 | 2018-06-08 | 杭州南方环境净化设备有限公司 | Non-ferrous metal metallurgy toxic metal steam smoke collecting device and method |
| CN108126431B (en) * | 2017-12-14 | 2024-05-28 | 杭州南方环境净化设备有限公司 | Non-ferrous metal smelting toxic metal steam smoke dust collecting device and method |
| CN108714336A (en) * | 2018-08-03 | 2018-10-30 | 华夏易能（广东）新能源科技有限公司 | A kind of dust purification auxiliary device, dust purification system and method |
| WO2020024450A1 (en) * | 2018-08-03 | 2020-02-06 | 华夏易能（广东）新能源科技有限公司 | Dust purification auxiliary apparatus, dust purification system, and method therefor |
| CN112221319A (en) * | 2020-10-09 | 2021-01-15 | 内蒙古工业大学 | Reactive type cooperative purification method and device for smoke pollutants |
| CN114471137A (en) * | 2022-03-14 | 2022-05-13 | 尊峰环保科技有限公司 | A medicament powder injection system for handling domestic waste burns flue gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Sino German Feng Feng Environmental Protection Technology Co., Ltd. Assignor: Fujian Fengquan Environmental Protection Control Co., Ltd. Contract record no.: 2012990000925 Denomination of utility model: Double powder spraying device for refuse burning smoke purifying system Granted publication date: 20120530 License type: Exclusive License Record date: 20121226 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20190825 |