CN104190540A - Dry-wet mixed electric precipitation device - Google Patents
Dry-wet mixed electric precipitation device Download PDFInfo
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- CN104190540A CN104190540A CN201410403215.8A CN201410403215A CN104190540A CN 104190540 A CN104190540 A CN 104190540A CN 201410403215 A CN201410403215 A CN 201410403215A CN 104190540 A CN104190540 A CN 104190540A
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Abstract
The invention discloses a dry-wet mixed electric precipitation device which comprises an inlet flue, a dry precipitation chamber, a wet precipitation chamber, an outlet flue and a circulating pool, wherein the inlet flue is connected with the dry precipitation chamber; the dry precipitation chamber is connected with the wet precipitation chamber; the wet precipitation chamber is connected with the outlet flue; an electrode system is arranged in the dry precipitation chamber; the upper end of the electrode system is electrically connected with electrode vibrators; the lower end of the electrode system is connected with cathode corona wires and dry electric field anode plates in a suspended mode; the bottom of the dry dust removal chamber is connected with a dry ash bucket device; a precipitation spraying system is arranged in the wet precipitation chamber; wet electric field anode plates are arranged below the precipitation spraying system; the bottom of the wet precipitation chamber is connected with a wet ash bucket; and the wet precipitation chamber is also connected with a circulating water tank. According to dry-wet mixed precipitation, the advantages of each precipitation system are utilized, the secondary dust raising problem of a dry precipitator and the problem of inapplicability of a wet precipitator are solved, and the precipitation efficiency is high.
Description
[technical field]
The present invention relates to flue gas purifying equipment technical field, the technical field that particularly electric dust collector is closed in dry wet mixing.
[background technology]
The operation principle of electric cleaner is basic identical, anode and cathode by equipment produces high voltage electric field, in the time that the gas that contains dust granules passes through high voltage electric field, gas is ionized, in the process of electronegative gas ion anode motion, collide with dust, make dust grain lotus electronegative, anode motion under the effect of electric field force, dust grain is deposited on positive plate.Electric cleaner is of a great variety, according to whether adopt liquid dust removing and deashing in dust removal process, electric cleaner is divided into dry electric precipitation device and wet electrical dust precipitator, dry dust removal generally drives brush to move to carrying out the removing of collecting electrode plate by beaing collecting electrode plate or mounting rotor of electric motor, the complex structure of motor dust out simultaneously, maintenance inconvenience, dust removing effects is not very desirable; Wet dust removal generally by circulating water to the top-down flushing of collecting electrode plate.
Dry electric precipitation device is most widely used, topmost dedusting means at present, there is the advantages such as smoke treatment amount is large, technical process is simple, operation and maintenance cost is low, but dry electric precipitation device remains corona wire electric discharge, dust collecting electrode is collected dust, and anti-corona and dust fly upward the solution that problem has not obtained all the time again.There is following point: 1, easily collecting high resistivity dust not.Because high resistivity dust resistance value is high, when arriving collecting polar plate, charged grit is difficult for neutralization in time, and there is remaining anion and gather, anode surface electric-field intensity is weakened, and grit migration velocity declines.When dust constantly gathers, the field intensity of gathering dust equates with anti-corona field intensity, or is greater than while gathering dust field intensity, causes partial breakdown, and dust collector efficiency declines to a great extent.2, be difficult for purifying low resistivity dust.While arriving collecting polar plate due to the low resistivity grit of bear electricity, neutralize immediately, also have little time sticky integrated agglomerate and just departed from pole plate, again float to flue, need again charged.
Wet electrical dust precipitator has the following advantages compared with dry electric precipitation device: do not need rapping equipment, avoided reentrainment of dust; Owing to there being all the time water membrane on pole plate, flue dust is rinsed by moisture film after becomeing trapped on pole plate immediately, and the particle that can not be captured is the phenomenon in Returning flow again.But still there are some problems in wet electrical dust precipitator: flushing process flowing water is flowing water inequality on collecting electrode plate, well dedusting; Conventional flow-type bath causes the waste of water resource, and the cost of wastewater treatment is simultaneously also very high; In addition, wet scrubber is not suitable for the dedusting of the high-temperature flue gas such as fire coal boiler fume.
According to statistics, the stifled ash of ash-transmission system forces electric cleaner to be stopped transport, and accounts for 30%～40% of the total accident rate of electric cleaner.In the actual motion of electric cleaner, usually in ash bucket, there is the phenomenon of stifled ash or paulin ash, cause the defeated ash of electric cleaner not smooth, reduce the efficiency of dust collection of electric cleaner.In the time that stifled ash or paulin in ash bucket are grey and arrive the pole plate of electric cleaner, easily cause electric field short circuit, affect the safe operation of electrical equipment, damage the internals of electric cleaner simultaneously, cause the distortion of electric cleaner pole plate, polar curve etc., produce the damage of unrepairable, and may cause electric field tripping operation.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, propose a kind of dry wet mixing and close electric dust collector, dry wet mixing dust removing, has utilized the advantage of dust pelletizing system separately, reentrainment of dust problem and the inapplicable problem of wet scrubber of having avoided again dry collector, efficiency of dust collection is high.
For achieving the above object, the present invention proposes a kind of dry wet mixing and close electric dust collector, comprise inlet flue duct, dry dust removal chamber, wet dust removal chamber, exhaust pass and circulatory pool, described inlet flue duct and exhaust pass are horn opening, inlet flue duct is connected with one end of dry dust removal chamber, the other end of dry dust removal chamber is connected with wet dust removal chamber, and wet dust removal chamber is connected with exhaust pass; The indoor electrode system that is provided with of described dry dust removal, the electrical connection of electrode system upper end and electrode vibrator, electrode system lower end is mounted with cathodic electricity hachure and dry type electric field positive plate, the installation that is connected with dry ash bucket device of bottom, dry dust removal chamber; Described wet dust removal indoor location has dedusting spray system, and dedusting spray system below is provided with Wet type electric field positive plate, and bottom, wet dust removal chamber is connected with wet type ash bucket, and wet dust removal chamber is also connected with cyclic water tank.
As preferably, described cathodic electricity hachure and dry type electric field positive plate vertical spacing arrange, and dry type electric field positive plate is multi-layered type structure; Described Wet type electric field positive plate vertical spacing arranges, and electrode system is connected with external power supply by cable.
As preferably, described dry ash bucket device lower end is connected with soot cleaning system by flange, and unloading valve is equipped with in described dry ash bucket device lower end.
As preferably, described dry ash bucket device comprises dry type ash bucket shell, feed opening, heater, spoiler support rail, spoiler vertical supporting rod, described dry ash bucket device upper end is also provided with the first deep bead and the second deep bead, front side and rear side in the first deep bead and the second deep bead packing and dry ash bucket device, leave gap between the first deep bead and the second deep bead and dry ash bucket device inwall.
As preferably, described dry type ash bucket shell is obliquely installed, and on dry type ash bucket shell, has at least one ash blowing mouth, and ash blowing mouth can be connected with airduct, and ash blowing mouth can be sealed by seal in the time not using.
As preferably, in described dry ash bucket device, lower end has feed opening, and feed opening is connected with unloading valve, on the outer wall of feed opening, heater is housed.
As preferably, spoiler support rail, spoiler vertical supporting rod are installed in described dry ash bucket device, on spoiler support rail, be laterally provided with spoiler, spoiler vertical supporting rod is vertically provided with spoiler.
As preferably, in described dedusting spray system, some shower nozzles are installed, shower nozzle arranges downwards, and shower nozzle just sprays Wet type electric field positive plate.
As preferably, one end of described cyclic water tank is connected with wet type ash bucket by circulation pipe, and the cyclic water tank other end is connected with water circulating pump, and water circulating pump is connected with dedusting spray system by water inlet pipe.
As preferably, in described cyclic water tank, be also provided with purifying processing device and pH value adjusting device.
Beneficial effect of the present invention: the present invention removes the dust of the high-temperature flue gas such as most of dust and fire coal boiler fume by dry electric precipitation chamber, remove the airborne dust of residue dust and dry dust removal chamber by wet-esp chamber, dry wet mixing dust removing, utilize the advantage of dust pelletizing system separately, reentrainment of dust problem and the inapplicable problem of wet scrubber of having avoided again dry collector, efficiency of dust collection is high; The dry type electric field positive plate of multi-layered type structure, makes arcing distance stable, and voltage of electric field is stable, and efficiency of dust collection is high; The dedusting spray system of corresponding Wet type electric field positive plate is set, shower nozzle is corresponding with battery lead plate cross section and be slightly larger than battery lead plate cross section, flowing water flows out through shower nozzle, be evenly distributed in the surface of battery lead plate, there will not be the phenomenon of flowing water inequality, thoroughly battery lead plate is rinsed, prevent there is dust accumulation on its surface, arranging of cyclic water tank realized recycling of water resource, reduced production cost, and to dry ash bucket device, structural improvement can solve stifled grey problem.This dust removal process is reliable, and floor space is little, meets low emission requirement, and installs, manufactures and manage very convenient.
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[brief description of the drawings]
Fig. 1 is the structural representation that electric dust collector is closed in a kind of dry wet mixing of the present invention;
Fig. 2 is the structural representation that the dry ash bucket device of electric dust collector is closed in a kind of dry wet mixing of the present invention.
In figure: 1-inlet flue duct, 2-electrode vibrator, 3-electrode system, 4-dry dust removal chamber, 5-wet dust removal chamber, 6-Wet type electric field positive plate, 7-dedusting spray system, 71-shower nozzle, 8-water inlet pipe, 9-exhaust pass, 10-water circulating pump, 11-cyclic water tank, 12-PH value adjusting device, 13-purifying processing device, 14-circulation pipe, 15-wet type ash bucket, 16-flange, 17-unloading valve, 18-dry ash bucket device, 181-dry type ash bucket shell, 1811-ash blowing mouth, 182-feed opening, 183-heater, 184-spoiler support rail, 185-spoiler vertical supporting rod, 186-the first deep bead, 187-the second deep bead, 188-spoiler, 19-soot cleaning system, 20-cathodic electricity hachure, 21-dry type electric field positive plate.
[detailed description of the invention]
Consult Fig. 1 and Fig. 2, the present invention, comprise inlet flue duct 1, dry dust removal chamber 4, wet dust removal chamber 5, exhaust pass 9 and circulatory pool 11, described inlet flue duct 1 and exhaust pass 9 are horn opening, inlet flue duct 1 is connected with one end of dry dust removal chamber 4, the other end of dry dust removal chamber 4 is connected with wet dust removal chamber 5, and wet dust removal chamber 5 is connected with exhaust pass 9; In described dry dust removal chamber 4, be provided with electrode system 3, electrode system 3 upper ends and electrode vibrator 2 are electrically connected, and electrode system 3 lower ends are mounted with cathodic electricity hachure 20 and dry type electric field positive plate 21, the installation that is connected with dry ash bucket device 18 of 4 bottoms, dry dust removal chamber; In described wet dust removal chamber 5, dedusting spray system 7 is installed, dedusting spray system 7 belows are provided with Wet type electric field positive plate 6, and 5 bottoms, wet dust removal chamber are connected with wet type ash bucket 15, and wet dust removal chamber 5 is also connected with cyclic water tank 11.Described cathodic electricity hachure 20 and the 21 vertical spacing settings of dry type electric field positive plate, dry type electric field positive plate 21 is multi-layered type structure; Described Wet type electric field positive plate 6 vertical spacing settings, electrode system 3 is connected with external power supply by cable.Described dry ash bucket device 18 lower ends are connected with soot cleaning system 19 by flange 16, and unloading valve 17 is equipped with in described dry ash bucket device 18 lower ends.Described dry ash bucket device 18 comprises dry type ash bucket shell 181, feed opening 182, heater 183, spoiler support rail 184, spoiler vertical supporting rod 185, described dry ash bucket device 18 upper ends are also provided with the first deep bead 186 and the second deep bead 187, front side and rear side in the first deep bead 186 and the second deep bead 187 packing and dry ash bucket device 18, leave gap between the first deep bead 186 and the second deep bead 187 and dry ash bucket device 18 inwalls.Described dry type ash bucket shell 181 is obliquely installed, and has at least one ash blowing mouth 1811 on dry type ash bucket shell 181, and ash blowing mouth 1811 can be connected with airduct, and ash blowing mouth 1811 can be sealed by seal in the time not using.The interior lower end of described dry ash bucket device 18 has feed opening 182, and feed opening 182 is connected with unloading valve 17, and heater 183 is housed on the outer wall of feed opening 182.Spoiler support rail 184, spoiler vertical supporting rod 185 are installed in described dry ash bucket device 18, are laterally provided with spoiler 188 on spoiler support rail 184, spoiler vertical supporting rod 185 is vertically provided with spoiler 188.Some shower nozzles 71 are installed in described dedusting spray system 7, and shower nozzle 71 arranges downwards, and shower nozzle 71 just sprays Wet type electric field positive plate 6.One end of described cyclic water tank 11 is connected with wet type ash bucket 15 by circulation pipe 14, and cyclic water tank 11 other ends are connected with water circulating pump 10, and water circulating pump 10 is connected with dedusting spray system 7 by water inlet pipe 8.In described cyclic water tank 11, be also provided with purifying processing device 13 and pH value adjusting device 12.
The course of work of the present invention:
A kind of dry wet mixing of the present invention is closed electric dust collector in the course of the work, flue gas enters dry dust removal chamber 4 from inlet flue duct 1, external power supply makes the cathodic electricity hachure 20 that is connected with electrode system 3 charged, every cathodic electricity hachure 20 electric discharges form electric field passage, the flue gas particle of electric field passage is charged and move to dry type electric field positive plate 21 under the effect of electric field force, finally be deposited on dry type electric field positive plate 21, electrode vibrator 2 makes to be deposited on the dust vibration on dry type electric field positive plate 21, fall into dry ash bucket device 18, drain by soot cleaning system 19.
Pass through the flue gas of dry dust removal chamber 4, remove most of flue dust, enter again wet dust removal chamber 5 and remove the airborne dust of residue dust and dry dust removal chamber 4, the dedusting spray system 7 that install Wet type electric field positive plate 6 tops sprays Wet type electric field positive plate 6, on 6 of Wet type electric field positive plates, forming water membrane purifies and gathers dust charged dust, the moisture film of continuous-flow is brought the dust of collection into bottom wet type ash bucket 15 simultaneously and is discharged from circulation pipe 14, discharges from exhaust pass 9 through the gas of udst separation; Current enter cyclic water tank 11 from circulation pipe 14, successively pass through purifying processing device 13 and pH value adjusting device 12, are pressurizeed by water circulating pump 10, and the dedusting spray system 7 that refluxes back, realizes the loop optimization utilization of water resource.
By the first deep bead 186 in dry ash bucket device 18 and the second deep bead 187 can prevent, alter the dust in wind, effectively avoided directly channeling to without electric field the dusty gas of electric cleaner outlet, improved dust catching efficiency; Heater 183 can make the knot ash temperature of dry ash bucket device 18 keep certain, makes ash have good mobility; Spoiler 188 can prevent that dust secondary fly-up from departing from dry ash bucket device 18, and spoiler 188 is insulation spoiler, prevents that the sticking dust adhesion of tool from producing electric breakdown phenomena on spoiler 188 surfaces, thereby ensures electric cleaner safe and reliable operation; Ash blowing mouth 1811 can connect airduct, to blowing grey operation in dry ash bucket device 18, solves the stifled grey problem in dry ash bucket device 18; Compactness rational in infrastructure, easy installation and removal, efficiency of dust collection is high.
The present invention removes the dust of the high-temperature flue gas such as most of dust and fire coal boiler fume by dry electric precipitation chamber 4, remove the airborne dust of residue dust and dry dust removal chamber 4 by wet-esp chamber 5, dry wet mixing dust removing, utilize the advantage of dust pelletizing system separately, reentrainment of dust problem and the inapplicable problem of wet scrubber of having avoided again dry collector, efficiency of dust collection is high; The dry type electric field positive plate 21 of multi-layered type structure, makes arcing distance stable, and voltage of electric field is stable, and efficiency of dust collection is high; The dedusting spray system 7 of corresponding Wet type electric field positive plate 6 is set, shower nozzle 71 is corresponding with battery lead plate cross section and be slightly larger than battery lead plate cross section, flowing water flows out through shower nozzle 71, be evenly distributed in the surface of battery lead plate, there will not be the phenomenon of flowing water inequality, thoroughly battery lead plate is rinsed, prevent there is dust accumulation on its surface, arranging of cyclic water tank 11 realized recycling of water resource, reduced production cost, and to dry ash bucket device 18, structural improvement can solve stifled grey problem.This dust removal process is reliable, and floor space is little, meets low emission requirement, and installs, manufactures and manage very convenient.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (10)
1. electric dust collector is closed in a dry wet mixing, it is characterized in that: comprise inlet flue duct (1), dry dust removal chamber (4), wet dust removal chamber (5), exhaust pass (9) and circulatory pool (11), described inlet flue duct (1) and exhaust pass (9) are horn opening, inlet flue duct (1) is connected with the one end of dry dust removal chamber (4), the other end of dry dust removal chamber (4) is connected with wet dust removal chamber (5), and wet dust removal chamber (5) are connected with exhaust pass (9); In described dry dust removal chamber (4), be provided with electrode system (3), electrode system (3) upper end and electrode vibrator (2) electrical connection, electrode system (3) lower end is mounted with cathodic electricity hachure (20) and dry type electric field positive plate (21), and installation is connected with dry ash bucket device (18) bottom dry dust removal chamber (4); Dedusting spray system (7) is installed in described wet dust removal chamber (5), dedusting spray system (7) below is provided with Wet type electric field positive plate (6), bottom, wet dust removal chamber (5) is connected with wet type ash bucket (15), and wet dust removal chamber (5) are also connected with cyclic water tank (11).
2. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: described cathodic electricity hachure (20) and dry type electric field positive plate (21) vertical spacing setting, dry type electric field positive plate (21) is multi-layered type structure; Described Wet type electric field positive plate (6) vertical spacing setting, electrode system (3) is connected with external power supply by cable.
3. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: described dry ash bucket device (18) lower end is connected with soot cleaning system (19) by flange (16), unloading valve (17) is equipped with in described dry ash bucket device (18) lower end.
4. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: described dry ash bucket device (18) comprises dry type ash bucket shell (181), feed opening (182), heater (183), spoiler support rail (184), spoiler vertical supporting rod (185), described dry ash bucket device (18) upper end is also provided with the first deep bead (186) and the second deep bead (187), front side and rear side in the first deep bead (186) and (187) packing of the second deep bead and dry ash bucket device (18), between the first deep bead (186) and the second deep bead (187) and dry ash bucket device (18) inwall, leave gap.
5. electric dust collector is closed in the dry wet mixing of one as claimed in claim 4, it is characterized in that: described dry type ash bucket shell (181) is obliquely installed, on dry type ash bucket shell (181), have at least one ash blowing mouth (1811), ash blowing mouth (1811) can be connected with airduct, and ash blowing mouth (1811) can be sealed by seal in the time not using.
6. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: the interior lower end of described dry ash bucket device (18) has feed opening (182), feed opening (182) is connected with unloading valve (17), and heater (183) is housed on the outer wall of feed opening (182).
7. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: spoiler support rail (184), spoiler vertical supporting rod (185) are installed in described dry ash bucket device (18), on spoiler support rail (184), be laterally provided with spoiler (188), spoiler vertical supporting rod (185) is vertically provided with spoiler (188).
8. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: some shower nozzles (71) are installed in described dedusting spray system (7), shower nozzle (71) arranges downwards, and shower nozzle (71) just sprays Wet type electric field positive plate (6).
9. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: one end of described cyclic water tank (11) is connected with wet type ash bucket (15) by circulation pipe (14), cyclic water tank (11) other end is connected with water circulating pump (10), and water circulating pump (10) is connected with dedusting spray system (7) by water inlet pipe (8).
10. electric dust collector is closed in the dry wet mixing of one as claimed in claim 1, it is characterized in that: in described cyclic water tank (11), be also provided with purifying processing device (13) and pH value adjusting device (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410403215.8A CN104190540A (en) | 2014-08-15 | 2014-08-15 | Dry-wet mixed electric precipitation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410403215.8A CN104190540A (en) | 2014-08-15 | 2014-08-15 | Dry-wet mixed electric precipitation device |
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| CN104190540A true CN104190540A (en) | 2014-12-10 |
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| CN201410403215.8A Pending CN104190540A (en) | 2014-08-15 | 2014-08-15 | Dry-wet mixed electric precipitation device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396694A (en) * | 2015-12-31 | 2016-03-16 | 哈尔滨众维豪环保科技有限公司 | Integrated dry-and-wet electrostatic dust collector |
| CN105689132A (en) * | 2016-03-11 | 2016-06-22 | 浙江信雅达环保工程有限公司 | Dry-wet compound electric dust remover |
| CN106179742A (en) * | 2016-08-30 | 2016-12-07 | 艾尼科环保技术(安徽)有限公司 | A kind of dry and wet compound electrostatic precipitator of band evaporation cooling section |
| CN107282304A (en) * | 2017-07-13 | 2017-10-24 | 福建欣隆环保股份有限公司 | A kind of horizontal asymmetrical subregion inversion high-efficiency wet electric cleaner |
| CN110102407A (en) * | 2019-06-06 | 2019-08-09 | 扬州好管家科技信息咨询有限公司 | A kind of self-cleaning rotating anode arrangement for wet electric precipitator |
| CN110694799A (en) * | 2019-09-23 | 2020-01-17 | 宁波方太厨具有限公司 | High-voltage electrostatic purification device and range hood applying same |
| CN110694800A (en) * | 2019-09-23 | 2020-01-17 | 宁波方太厨具有限公司 | High-voltage electrostatic purification device and range hood applying same |
| CN111841217A (en) * | 2020-07-09 | 2020-10-30 | 陈鑫 | Air purification dust collector for underground works |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396694A (en) * | 2015-12-31 | 2016-03-16 | 哈尔滨众维豪环保科技有限公司 | Integrated dry-and-wet electrostatic dust collector |
| CN105689132A (en) * | 2016-03-11 | 2016-06-22 | 浙江信雅达环保工程有限公司 | Dry-wet compound electric dust remover |
| CN106179742A (en) * | 2016-08-30 | 2016-12-07 | 艾尼科环保技术(安徽)有限公司 | A kind of dry and wet compound electrostatic precipitator of band evaporation cooling section |
| CN107282304A (en) * | 2017-07-13 | 2017-10-24 | 福建欣隆环保股份有限公司 | A kind of horizontal asymmetrical subregion inversion high-efficiency wet electric cleaner |
| CN110102407A (en) * | 2019-06-06 | 2019-08-09 | 扬州好管家科技信息咨询有限公司 | A kind of self-cleaning rotating anode arrangement for wet electric precipitator |
| CN110694799A (en) * | 2019-09-23 | 2020-01-17 | 宁波方太厨具有限公司 | High-voltage electrostatic purification device and range hood applying same |
| CN110694800A (en) * | 2019-09-23 | 2020-01-17 | 宁波方太厨具有限公司 | High-voltage electrostatic purification device and range hood applying same |
| CN110694799B (en) * | 2019-09-23 | 2024-05-14 | 宁波方太厨具有限公司 | High-voltage electrostatic purifying device and range hood using same |
| CN110694800B (en) * | 2019-09-23 | 2024-05-14 | 宁波方太厨具有限公司 | High-voltage electrostatic purifying device and range hood using same |
| CN111841217A (en) * | 2020-07-09 | 2020-10-30 | 陈鑫 | Air purification dust collector for underground works |
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Address after: 311800, Zhejiang, Shaoxing province Zhuji Wang Zhen town conference bridge village Applicant after: Zhejiang Lida environmental protection Polytron Technologies Inc Address before: 311800, Zhejiang, Shaoxing province Zhuji Wang Zhen town conference bridge village Applicant before: ZHEJIANG ZHUJI LIDA ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. |
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Application publication date: 20141210 |