CN206168143U - Wet classification dust collector - Google Patents
Wet classification dust collector Download PDFInfo
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- CN206168143U CN206168143U CN201621166533.8U CN201621166533U CN206168143U CN 206168143 U CN206168143 U CN 206168143U CN 201621166533 U CN201621166533 U CN 201621166533U CN 206168143 U CN206168143 U CN 206168143U
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Abstract
The utility model relates to a wet classification dust collector, the device is including device shell, one -level rough dedusting device, the smart dust collector of second grade, spraying system, defogging system, gas outlet and water tank system, one -level rough dedusting device sets up in device shell's bottom, the gas outlet sets up in device shell's top, the smart dust collector of second grade, defogging system are set up on the device shell between thick dust collector of one -level and gas outlet by supreme interval in proper order down, spraying system can spray to the smart dust collector of second grade, water tank system configuration is outside device shell and be connected the setting with one -level rough dedusting device. The utility model discloses compact structure, the resistance is little, investment cost is lower, remove dust through the second grade, and the dust collection efficiency increases, and the effluent concentration that the device can guarantee to export the smoke and dust reaches the standard that national environmental protection requirement was discharged for below the 5mgNm3.
Description
Technical field
This utility model belongs to environmental technology field, especially a kind of wet classification dust arrester, and the device can be used to contain
In the process of cloud of dust gas.
Background technology
Recent years, wet scrubber is so that its simple structure, equipment investment be low, efficiency of dust collection is high in coal-burning boiler, chemical industry system
The industries such as medicine, food processing, metallurgy, casting have obtained widely applying.Wet scrubber is gone back while powder dust particle is removed
The gaseous contaminant in gas can be removed, has not only been played a part of dedusting but also has been played a part of purification.With electrostatic precipitator and bag
Formula cleaner unit is compared, and wet scrubber can process high temperature, high wet gas current and inflammable and explosive dusty gas.But, pass
The single wet scrubber efficiency of dust collection of system is relatively low, it is impossible to meet the standard of national requirements for environmental protection discharge.
By retrieval, such as the next chapter patent publication us related to present patent application are found：
Flue gas wet classification dust arrester (CN103276141A) of converter, including the thick dedusting dress of one-level being sequentially connected
Put, two grades of smart dust arresters, three-level essence dust arrester, blower fan and circulations, the thick dust arrester of the one-level is provided with spray
Device I and mud discharging valve I, described two grades smart dust arresters are provided with spray equipment II and mud discharging valve II, the recirculated water
System includes sewage-treatment plant and circulating pump, the mud discharging valve I and mud discharging valve II respectively with sewage-treatment plant
Entrance connects, and the sewage-treatment plant outlet is connected respectively by circulating pump with spray equipment I and spray equipment II.This practicality
New structure is simple, stable and reliable operation, invests less, and operation expense is low.By 3-stage dust-removal, dedusting effect is improve
Rate, it is ensured that the dust contained flue gas concentration≤10mg/m discharged after purification3, less than existing dry dedusting technology and wet dedusting skill
Art level, its discharge standard reaches International Environmental Protection standard.
By contrast, there are the different of essence in this utility model patent application from above-mentioned patent publication us.
Utility model content
The purpose of this utility model is to overcome the weak point in existing wet dust collection technology, there is provided a kind of wet classification
Dust arrester and application, the device can ensure that the concentration of emission of outlet flue dust is 5mg/Nm3Hereinafter, national requirements for environmental protection is reached
The standard of discharge, the device can be used in the process of ash-laden gas.
The purpose of this utility model is achieved through the following technical solutions：
A kind of wet classification dust arrester, described device includes crust of the device, the thick dust arrester of one-level, two grades of smart dedusting dresses
Put, spray system, demister system, gas outlet and cistern system, the thick dust arrester of the one-level is arranged at the bottom of crust of the device,
The gas outlet is arranged at the top of crust of the device, and from the bottom to top successively interval sets for described two grades smart dust arresters, demister systems
On the crust of the device being placed between the thick dust arrester of one-level and gas outlet, the spray system can be to two grades of smart dust arrester sprays
Drench, the cistern system is arranged at outside crust of the device and the setting that is connected with the thick dust arrester of one-level；
The thick dust arrester of the one-level includes air inlet, sleeve expansion piece, flue gas nozzle, dust storage chamber I, collection QI KOU, described
Dust storage chamber I is arranged at the bottom of crust of the device, and in the dust storage chamber I water is loaded with, with dress on the crust of the device above dust storage chamber I
Put shell and be connected and be provided with air inlet, the tail end of the air inlet connects the upper of flue gas nozzle by the sleeve expansion piece being coaxially disposed
End, the bottom of the flue gas nozzle is arranged at the ullage of dust storage chamber I, and the flue gas nozzle can spray the impact water surface to liquid level
Flue gas, the crust of the device above the air inlet is provided with collection QI KOU, the bottom outer-edge of the collection QI KOU and the inwall of crust of the device
It is sealingly disposed in together；
The cistern system includes water tank regulating valve, slush pump, settling tank and 1# water circulating pumps, the dust storage chamber I's
Bottom is connected setting by water tank regulating valve, slush pump with the side entrance of middle and upper part one of settling tank, in the settling tank
Another side outlet in top is connected setting by 1# water circulating pumps with dust storage chamber I, and the 1# water circulating pumps can be by settling tank
Water input dust storage chamber I in；
Described two grades smart dust arresters include discharge pipe, dirt pocket, cross smoke pipeline, dust storage chamber II, filler plate and header tank,
The top of the collection QI KOU arranges header tank, and the header tank is not attached to logical setting with dust storage chamber I, and the top of the header tank arranges collection
Dirt room II, between dust storage chamber II and header tank filler plate is coaxially disposed, and the edge of the filler plate is close with the inwall of crust of the device
Envelope is set together；The top of dust storage chamber II arranges dirt pocket, and the top outer rim of the dirt pocket is tight with the inwall of crust of the device
Close to be set together, the coaxial close communication in bottom of the dirt pocket arranges discharge pipe, bottom outside edge and the dress of the discharge pipe
The inner wall sealing for putting shell is arranged, and the outlet at bottom of the discharge pipe is connected setting with dust storage chamber II；The dirt pocket middle and lower part
Side close communication arranged the top of smoke pipeline, and it is tight with the top of collection QI KOU that the bottom for crossing smoke pipeline is passed down through filler plate
The close setting that is connected；
The spray system includes 2# water circulating pumps, spray regulating valve, spray pipeline and ultrasonic wave atomizing nozzle, the 2#
The input of water circulating pump is connected setting with the bottom of header tank, the outfan of the 2# water circulating pumps by spray regulating valve with
Spray pipeline is connected setting, and uniform interval is connected and is provided with multiple down-set ultrasounds on the bottom surface of the spray pipeline
Ripple atomizer；The spray pipeline and ultrasonic wave atomizing nozzle are arranged at intervals at outside the device between dirt pocket and demister system
On shell, the ultrasonic wave atomizing nozzle can spray fine water-spray to dirt pocket.
And, described device also includes air-introduced machine, and the air-introduced machine is connected setting with gas outlet, and the gas outlet passes through to draw
Blower fan carries out outlet.
And, described device shell is circular, square or ellipse.
And, the bottom surface of the flue gas nozzle is 200~1000mm apart from the distance of liquid level.
And, the top end diameter of the collection QI KOU is identical with the bottom diameter for crossing smoke pipeline, collects the bottom surface diameter of QI KOU
It is identical with the diameter of crust of the device.
And, the dirt pocket is for inverted cone-shaped structure and upper surface diameter is identical with the diameter of crust of the device, bottom surface
Diameter it is identical with the diameter of plasma discharge pipeline；The bottom of the dust storage chamber II is provided with desilting mud with being connected inside dust storage chamber II
Mouthful.
And, it is connected with dust storage chamber I on the crust of the device of the ullage of the dust storage chamber I and a filling pipe is set；Institute
A water inlet pipe is set with being connected in header tank on the crust of the device of the bottom side for stating header tank, one is arranged on the water inlet pipe and is supplied
Penstock, the water supply valve can open or close the water inlet of water inlet pipe.
Advantage and beneficial effect acquired by this utility model be：
1st, this device include crust of the device, the thick dust arrester of one-level, two grades of smart dust arresters, spray system, demister system,
Gas outlet and cistern system, the apparatus structure is compact, resistance is little, cost of investment is relatively low, and by two-stage dust removal, efficiency of dust collection increases
Plus, the device ensure that outlet drain concentration reaches 5mg/Nm3Hereinafter, the standard of national requirements for environmental protection discharge is met；In addition,
This device is provided with ultrasonic wave atomizing nozzle, can reduce spray flux, and saving water resource, the fine droplets amounts of particles of ejection increases
Many, its specific surface area increase further improves efficiency of dust collection；Meanwhile, this device is provided with sleeve expansion piece, can be according to flue gas
Load Regulation flue gas nozzle bottom surface apart from the distance of liquid level, expand the use range of this device.
2nd, the bottom of the dust storage chamber II of this device is provided with desilting mud mouth with being connected inside dust storage chamber II, using the desilting mud
Mouth can be cleared up periodically the mud inside dust storage chamber II, extend its service life.
3rd, be connected one filling pipe of setting on the crust of the device of the ullage of the dust storage chamber I of this device with dust storage chamber I；Institute
A water inlet pipe is set with being connected in header tank on the crust of the device of the bottom side for stating header tank, one is arranged on the water inlet pipe and is supplied
Penstock, the water supply valve can open or close the water inlet of water inlet pipe.When in use, the filling pipe/feed water valve can be passed through
Door periodically can carry out moisturizing to dust storage chamber I/ header tanks, to ensure that device stably runs.
Description of the drawings
Fig. 1 is a kind of structure connection diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and by embodiment, this utility model is further elaborated, the following example is simply said
Bright property, be not determinate, it is impossible to following described limiting protection domain of the present utility model.
Structure, annexation for not describing in detail in this utility model etc., it can be understood as ordinary skill in the art handss
Section.
A kind of wet classification dust arrester, as shown in figure 1, described device include crust of the device, the thick dust arrester of one-level, two
The smart dust arrester of level, spray system, demister system 12, gas outlet 13 and cistern system, the thick dust arrester of the one-level is arranged at
The bottom of crust of the device, the gas outlet is arranged at the top of crust of the device, and described two grades smart dust arresters, demister systems are by under
On the supreme crust of the device being arranged at intervals at successively between the thick dust arrester of one-level and gas outlet, the spray system can be to two
The smart dust arrester spray of level, the cistern system is arranged at outside crust of the device and the setting that is connected with the thick dust arrester of one-level；
The thick dust arrester of the one-level includes air inlet 1, sleeve expansion piece 2, flue gas nozzle 3, dust storage chamber I 4, collection QI KOU
21, the dust storage chamber I is arranged at the bottom of crust of the device, and in the dust storage chamber I water is loaded with, outside the device above dust storage chamber I
It is connected with crust of the device on shell and is provided with air inlet, the tail end of the air inlet connects flue gas by the sleeve expansion piece being coaxially disposed
The upper end of nozzle, the bottom of the flue gas nozzle is arranged at the ullage of dust storage chamber I, and the flue gas nozzle can spray to liquid level and rush
Strike waters the flue gas in face, the crust of the device above the air inlet is provided with collection QI KOU, outside the bottom outer-edge of the collection QI KOU and device
The inner wall sealing of shell is set together；
The cistern system includes water tank regulating valve 22, slush pump, settling tank and 1# water circulating pumps, the dust storage chamber I
Bottom be connected with the side entrance of middle and upper part one of settling tank setting by water tank regulating valve, slush pump, the settling tank
Another side outlet in middle and upper part is connected setting by 1# water circulating pumps with dust storage chamber I, and the 1# water circulating pumps can be by settling tank
In water input dust storage chamber I in；
Described two grades smart dust arresters include discharge pipe 8, dirt pocket 9, cross smoke pipeline 14, dust storage chamber II 15, filler plate 17
With header tank 18, the top of the collection QI KOU arranges header tank, and the header tank and dust storage chamber I are not attached to logical setting, the header tank
Top arrange dust storage chamber II, be coaxially disposed filler plate between dust storage chamber II and header tank, the edge and device of the filler plate
The inner wall sealing of shell is set together；The top of dust storage chamber II arranges dirt pocket, the top outer rim of the dirt pocket and device
The inwall of shell is tightly disposed in together, and the coaxial close communication in bottom of the dirt pocket arranges discharge pipe, the bottom of the discharge pipe
The inner wall sealing of outer ledge and crust of the device is arranged, and the outlet at bottom of the discharge pipe is connected setting with dust storage chamber II；It is described
Dirt pocket middle and lower part side close communication arranged the top of smoke pipeline, and the bottom for crossing smoke pipeline is passed down through filler plate with collection
The tight of QI KOU is connected setting；
The spray system includes 2# water circulating pumps 6, spray regulating valve 7, spray pipeline 11 and ultrasonic wave atomizing nozzle 10,
The input of 2# water circulating pumps is connected setting with the bottom of header tank, and the outfan of the 2# water circulating pumps is adjusted by spraying
Section valve is connected settings with spray pipeline, uniformly is spaced to be connected on the bottom surface of the spray pipeline and is provided with multiple down-set
Ultrasonic wave atomizing nozzle；The spray pipeline and ultrasonic wave atomizing nozzle are arranged at intervals between dirt pocket and demister system
On crust of the device, the ultrasonic wave atomizing nozzle can spray fine water-spray to dirt pocket.
This utility model device includes crust of the device, the thick dust arrester of one-level, two grades of smart dust arrester, spray systems, removes
Mist system, gas outlet and cistern system, the apparatus structure is compact, resistance is little, cost of investment is relatively low, by two-stage dust removal, dedusting
Efficiency increases, and the device ensure that outlet drain concentration reaches 5mg/Nm3Hereinafter, the mark of national requirements for environmental protection discharge is met
It is accurate；In addition, this device is provided with ultrasonic wave atomizing nozzle, spray flux, saving water resource, the fine droplets of ejection can be reduced
Grain increasing number, its specific surface area increase, further improves efficiency of dust collection；Meanwhile, this device is provided with sleeve expansion piece, can be with
According to the Load Regulation flue gas nozzle bottom surface of flue gas apart from the distance of liquid level, the use range of this device is expanded.
In the present embodiment, described device also includes air-introduced machine, and the air-introduced machine is connected setting with gas outlet, the outlet
Mouth carries out outlet by air-introduced machine.
In the present embodiment, described device shell is circular, square or ellipse.
In the present embodiment, the bottom surface of the flue gas nozzle is 200~1000mm apart from the distance of liquid level.
In the present embodiment, the top end diameter of the collection QI KOU is identical with the bottom diameter for crossing smoke pipeline, under collection QI KOU
Basal diameter is identical with the diameter of crust of the device.
In the present embodiment, the dirt pocket is the diameter phase of inverted cone-shaped structure and upper surface diameter and crust of the device
Together, the diameter of bottom surface is identical with the diameter of plasma discharge pipeline；The bottom of the dust storage chamber II sets with being connected inside dust storage chamber II
There is desilting mud mouth 16, periodically the mud inside dust storage chamber II can be cleared up using the desilting mud mouth, extend it and use
Life-span.
In the present embodiment, be connected one benefit of setting on the crust of the device of the ullage of the dust storage chamber I with dust storage chamber I
Water pipe 5；A water inlet pipe 19, the water inlet pipe are set with being connected in header tank on the crust of the device of the bottom side of the header tank
One water supply valve 20 of upper setting, the water supply valve can open or close the water inlet of water inlet pipe.When in use, can be by the benefit
Water pipe/water supply valve periodically can carry out moisturizing to dust storage chamber I/ header tanks, to ensure that device stably runs.
When in use, the dust-laden serosity in the thick dust arrester of one-level in dust storage chamber I can be entered this device by slush pump
To settling tank, supernatant enters into dust storage chamber I by 1# water circulating pumps；Serosity in two grades of smart dust arresters in dust storage chamber II
Header tank is entered into after filler plate is filtered, clear liquid enters into dirt pocket by 2# water circulating pumps in header tank, and water resource can
Fully recycled with reaching, the silt after the operation for a period of time of device, in periodic cleaning dust storage chamber II and settling tank
Mud, header tank and dust storage chamber I periodically can carry out moisturizing by external pipe, to ensure that device stably runs.
The operation principle of this utility model wet classification dust arrester is：
The smoke-shock water surface that ash-laden gas is sprayed by air inlet through nozzle, makes the water surface evoke substantial amounts of water droplet and bubble
Foam, with flue gas in terms of change, most of wet water soot dust granule is heavy to be stayed in water.Flue gas after the thick udst separation of one-level
The flue dust adsorbed entrainment of a part of water droplet and by water droplet reaches collection QI KOU and entered smoke pipeline, enters the flue gas stream of smoke pipeline
Speed increases, and enters into dirt pocket and becomes the air-flow that at a high speed rotation rises, and upper end ultrasonic wave atomizing nozzle sprays fine water-spray and cigarette
Dirt particles collision, cohesion, fine dust is thrown on dedusting locular wall by liquid film supplementary set by drop supplementary set and by centrifugal action, only
Flue gas after change through demister remove water droplet, most after Jing gas outlets (for example, gas outlet can carry out outlet by air-introduced machine)
Enter air.This device can be used in the process of ash-laden gas.
Claims (7)
1. a kind of wet classification dust arrester, it is characterised in that：Described device include crust of the device, the thick dust arrester of one-level, two
The smart dust arrester of level, spray system, demister system, gas outlet and cistern system, the thick dust arrester of the one-level is arranged at device
The bottom of shell, the gas outlet is arranged at the top of crust of the device, and described two grades smart dust arresters, demister systems are from the bottom to top
It is arranged at intervals at successively on the crust of the device between the thick dust arrester of one-level and gas outlet, the spray system can be to two grades of essences
Dust arrester is sprayed, and the cistern system is arranged at outside crust of the device and the setting that is connected with the thick dust arrester of one-level；
The thick dust arrester of the one-level includes air inlet, sleeve expansion piece, flue gas nozzle, dust storage chamber I, collection QI KOU, the dust
Room I is arranged at the bottom of crust of the device, and in the dust storage chamber I water is loaded with, on the crust of the device above dust storage chamber I with device outside
Shell phase connection is provided with air inlet, and the tail end of the air inlet connects the upper end of flue gas nozzle by the sleeve expansion piece being coaxially disposed,
The bottom of the flue gas nozzle is arranged at the ullage of dust storage chamber I, and the flue gas nozzle can spray the cigarette of the impact water surface to liquid level
Gas, the crust of the device above the air inlet is provided with collection QI KOU, and the bottom outer-edge of the collection QI KOU is close with the inwall of crust of the device
Envelope is set together；
The cistern system includes water tank regulating valve, slush pump, settling tank and 1# water circulating pumps, the bottom of the dust storage chamber I
It is connected with the side entrance of middle and upper part one of settling tank setting by water tank regulating valve, slush pump, the middle and upper part of the settling tank
Another side outlet is connected setting by 1# water circulating pumps with dust storage chamber I, and the 1# water circulating pumps can be by the water in settling tank
In input dust storage chamber I；
Described two grades smart dust arresters include discharge pipe, dirt pocket, cross smoke pipeline, dust storage chamber II, filler plate and header tank, described
The top of collection QI KOU arranges header tank, and the header tank is not attached to logical setting with dust storage chamber I, and the top of the header tank arranges dust storage chamber
II, between dust storage chamber II and header tank filler plate is coaxially disposed, and the edge of the filler plate sets with the inner wall sealing of crust of the device
Put together；The top of dust storage chamber II arranges dirt pocket, and top outer rim and the inwall of crust of the device of the dirt pocket closely set
Put together, the coaxial close communication in bottom of the dirt pocket arranges discharge pipe, outside the bottom outside edge and device of the discharge pipe
The inner wall sealing of shell is arranged, and the outlet at bottom of the discharge pipe is connected setting with dust storage chamber II；Dirt pocket middle and lower part side
Close communication arranged the top of smoke pipeline, and the bottom for crossing smoke pipeline is passed down through the tight phase of filler plate and collection QI KOU
Connection is arranged；
The spray system includes 2# water circulating pumps, spray regulating valve, spray pipeline and ultrasonic wave atomizing nozzle, the 2# circulations
The input of water pump is connected setting with the bottom of header tank, and the outfan of the 2# water circulating pumps is by spray regulating valve and spray
Pipeline is connected setting, and uniform interval is connected and is provided with multiple down-set ultrasonic fogs on the bottom surface of the spray pipeline
Change nozzle；The spray pipeline and ultrasonic wave atomizing nozzle are arranged at intervals at the crust of the device between dirt pocket and demister system
On, the ultrasonic wave atomizing nozzle can spray fine water-spray to dirt pocket.
2. wet classification dust arrester according to claim 1, it is characterised in that：Described device also includes air-introduced machine, institute
State air-introduced machine to be connected with gas outlet setting, the gas outlet carries out outlet by air-introduced machine.
3. wet classification dust arrester according to claim 1, it is characterised in that：Described device shell is circular, square
Or it is oval.
4. wet classification dust arrester according to claim 1, it is characterised in that：The bottom surface distance of the flue gas nozzle
The distance of liquid level is 200~1000mm.
5. wet classification dust arrester according to claim 1, it is characterised in that：The top end diameter and mistake of the collection QI KOU
The bottom diameter of smoke pipeline is identical, and the bottom surface diameter for collecting QI KOU is identical with the diameter of crust of the device.
6. wet classification dust arrester according to claim 1, it is characterised in that：The dirt pocket is inverted cone-shaped structure
And upper surface diameter is identical with the diameter of crust of the device, the diameter of bottom surface is identical with the diameter of plasma discharge pipeline；The dust storage chamber
The bottom of II is provided with desilting mud mouth with being connected inside dust storage chamber II.
7. the wet classification dust arrester according to any one of claim 1 to 6, it is characterised in that：The liquid of the dust storage chamber I
It is connected with dust storage chamber I on crust of the device above face and a filling pipe is set；The crust of the device of the bottom side of the header tank
It is upper that one water supply valve is set on the water inlet pipe with one water inlet pipe of setting that is connected in header tank, the water supply valve can open or
Close the water inlet of water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621166533.8U CN206168143U (en) | 2016-11-02 | 2016-11-02 | Wet classification dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621166533.8U CN206168143U (en) | 2016-11-02 | 2016-11-02 | Wet classification dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206168143U true CN206168143U (en) | 2017-05-17 |
Family
ID=58679800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621166533.8U Withdrawn - After Issue CN206168143U (en) | 2016-11-02 | 2016-11-02 | Wet classification dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206168143U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377961A (en) * | 2016-11-02 | 2017-02-08 | 航天环境工程有限公司 | Wet type grading dust removal device and application |
| CN108744803A (en) * | 2018-06-27 | 2018-11-06 | 逯亚静 | A kind of double mode deduster |
| CN109569154A (en) * | 2018-11-22 | 2019-04-05 | 中耕耘成建筑科技(江苏)有限公司 | A kind of concrete of high-efficiency environment friendly prepares special dust-removing equipment |
-
2016
- 2016-11-02 CN CN201621166533.8U patent/CN206168143U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377961A (en) * | 2016-11-02 | 2017-02-08 | 航天环境工程有限公司 | Wet type grading dust removal device and application |
| CN106377961B (en) * | 2016-11-02 | 2018-08-14 | 航天环境工程有限公司 | A kind of wet classification dust-extraction unit and application |
| CN108744803A (en) * | 2018-06-27 | 2018-11-06 | 逯亚静 | A kind of double mode deduster |
| CN108744803B (en) * | 2018-06-27 | 2021-02-12 | 南通利元亨机械有限公司 | Dual-mode dust remover |
| CN109569154A (en) * | 2018-11-22 | 2019-04-05 | 中耕耘成建筑科技(江苏)有限公司 | A kind of concrete of high-efficiency environment friendly prepares special dust-removing equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20180814 |
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| AV01 | Patent right actively abandoned |