CN101632964A - Continuous disk centrifugal ore separator - Google Patents
Continuous disk centrifugal ore separator Download PDFInfo
- Publication number
- CN101632964A CN101632964A CN200910184327A CN200910184327A CN101632964A CN 101632964 A CN101632964 A CN 101632964A CN 200910184327 A CN200910184327 A CN 200910184327A CN 200910184327 A CN200910184327 A CN 200910184327A CN 101632964 A CN101632964 A CN 101632964A
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- Prior art keywords
- centrifugal
- ore
- motor
- continuous disk
- centrifuge cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 23
- 239000011707 mineral Substances 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 229910052770 Uranium Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 101000880098 Homo sapiens Sushi repeat-containing protein SRPX Proteins 0.000 description 1
- 102100037352 Sushi repeat-containing protein SRPX Human genes 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Centrifugal Separators (AREA)
Abstract
The invention discloses a continuous disk centrifugal ore separator, comprising a motor, a motor base connected with the motor, a centrifugal cover and a centrifugal base which are vertically arranged from top to bottom, wherein the centrifugal cover is connected with the motor base and provided with ore outlets ; the centrifugal base has a parabola-shaped cross section and is connected with the centrifugal cover. The centre of the motor base and the center of the centrifugal cover are provided with vertical shaft holes, a main shaft connected with an output shaft of the motor penetrates the shaft holes of the motor base and the centrifugal cover to extend into a cavity consisting of the centrifugal cover and the centrifugal base; a barrate having the parabola-shaped cross section, a shaft sleeve embedded in the main shaft and a connection plate connecting with the shaft sleeve and the barrate are arranged in the cavity; ore slurry inlets are arranged below the centrifugal base; the barrate is in clearance fit with the centrifugal cover and the centrifugal base; and a barrate port corresponding to the ore slurry inlet is arranged below the barrate. The invention greatly improves the precision and the efficiency of separating ore.
Description
Technical field
The present invention relates to a kind of ore processing association area, particularly a kind of beneficiating efficiency high precision good continuous disk centrifugal ore separator.
Background technology
There are Sweden, Germany, Denmark, the U.S., Japan, France etc. in the major country that makes disk centrifugal separator, and wherein with the AIfa-IavaI company of Sweden, the west falia company of Germany is the most famous.In the centrifuge that Sweden AIfa-IavaI company produces, series of products such as SSG (general, anhydrous stamp), SRG (general, water stamp) and SRPX (Shui Chong, certainly ask formula).All only be used for oils industry, can only separate solid-liquid or profit.Supercentrifuge to solid is classified only is applied during the ore deposit at SEPARATION OF URANIUM, protactinium in nuclear industry, and the manufacturing technology complexity.Existing centrifugal ore separators is slow-speed of revolution service intermittent mostly, puts into ore pulp, sorting, goes out process such as concentrate, is undertaken by a cover electrical equipment control, is out of order easily, controls inaccurately slightly just to miss fire.And under the bigger situation of centrifugal force, form the fine and close bed of material easily and influence separating effect.And treating capacity is little, and energy consumption is higher.
The patent of invention of China Patent No. 85102190 has proposed a kind of continuous centrifugal concentrating machine that adopts inside and outside barrel configuration, complex structure, and reclaim not thorough.There is the part ore deposit to discharge with waste material easily.Equally also there is the higher defective of the little energy consumption for the treatment of capacity.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is at the deficiencies in the prior art, and a kind of continuous disk centrifugal ore separator is provided.
Technical scheme: the invention discloses a kind of continuous disk centrifugal ore separator, comprise vertically disposed motor, the motor cabinet that is connected with motor from top to bottom, centrifuge cup that is provided with the mineral outlet that is connected with motor cabinet and the cross section that is connected with centrifuge cup are the centrifugal support of parabolic shape; Described motor cabinet and centrifuge cup center are provided with vertical axis hole, by a main shaft that is connected with motor output shaft pass the axis hole of described motor cabinet and centrifuge cup and stretch into centrifuge cup and the cavity formed with centrifugal support in; Be provided with the cross section in the described cavity and be parabola shaped rotary drum, be nested in the axle sleeve on the main shaft and the connecting plate of connecting bushing and rotary drum; Described centrifugal support below is provided with the ore pulp import; Described rotary drum and described centrifuge cup and centrifugal support matched in clearance, and the rotary drum below is provided with the rotary drum mouth corresponding with the ore pulp import.
Among the present invention, preferably, described centrifugal support sidewall is provided with water inlet, and described centrifuge cup sidewall is provided with delivery port.Introducing flushing water in centrifugal support and the rotary drum is a big characteristic of this machine, and the backflow clear water enters ring arc collection ore deposit track and realizes flushing through the gap of the rotary drum outside and centrifugal support and centrifuge cup.Under the situation that does not influence separation, continuously dilute ore pulp, prevent that ore particle is adsorbed on the ring arc track of cover.Make the inner material of rotary drum road unimpeded, guarantee the long-term running continuously of ore separators; The contact-making surface of lubricated simultaneously iron ore feeding hole rotary drum and support.Simultaneously owing to be provided with delivery port, thereby make industrial water recycling.Improve the concentration of ore removal simultaneously, reduced the post processing amount.
Among the present invention, preferably, described mineral outlet is more than one, is separately positioned on the centrifuge cup sidewall position of differentiated levels from the bottom to top.For example can the proportion according to mineral be set, the outlet of heavy phase ore deposit is set according to the requirement of ore dressing precision and scope, outlet of inferior heavy phase ore deposit and the outlet of light phase ore deposit, its level height is arranged from low to high.And on same level height, the more than one outlet of heavy mineral on year-on-year basis can be set also.
Among the present invention, preferably, described connecting plate is made up of the blade more than three.The uniformly-spaced angle setting of described blade is divided into some uniformly-spaced zones by the blade more than three with centrifuge cup and with cavity that centrifugal support is formed.
Among the present invention, preferably, being connected with separation video disc with angle between the described blade, aligns with described mineral outlet in the upper edge of described separation video disc.Thus, can improve the accuracy of ore dressing, and be convenient to discharge from the mineral outlet with the mineral of proportion by separation video disc with angle.。
Among the present invention, preferably, described main shaft end is provided with screw thread, and is nested with the nut of fixed hub position.The vertical position of fixed hub is placed offset of vertical is taken place thus.
Among the present invention, preferably, be provided with bearing in the described motor cabinet, thereby guarantee the horizontal level of main shaft, place occurred level vibration skew.
Among the present invention, preferably, be provided with spring between described bearing and the motor cabinet, can effectively absorb the vibration of main shaft in the vertical direction.
Among the present invention, preferably, the inwall distribution of mineral outlet is provided with annular collection ore deposit groove on the described centrifuge cup inwall, and concrete quantity is corresponding with mineral outlet kind.Can in rotating at a high speed, utilize centrifugal force will be limited in the mineral of proportion in the annular collection ore deposit groove of same level position thus, utilize revolving force simultaneously, the mineral in the groove are discharged in the mineral outlet of same horizontal level.
Among the present invention, preferably, the output shaft of described motor is connected with main shaft by the elasticity linkage, thereby effectively absorbs the vibration that is connected between main shaft and the motor output shaft.
Beneficial effect: the present invention has the following advantages 1, because rotary drum has adopted parabolic curve shape and following feeding manner.To slow, centrifugal speed is by slow extremely fast by fast for the event upflow velocity.Therefore mineral can't be deposited on drum inner wall.2, be back to the iron ore feeding hole system owing to be provided with the outlet of time heavy phase ore deposit, thereby realized controlled to light phase materials, thereby reached making full use of resource.And having avoided mineral matter to discharge from waste material pollutes environment.The outlet in inferior heavy phase ore deposit also can be concentrated choosing more separately.3, introducing flushing water in the rotary drum is a big characteristic of this machine, and the backflow clear water enters ring arc collection ore deposit track and realizes flushing through the gap of the rotary drum outside and cover.Under the situation that does not influence separation, continuously dilute ore pulp, prevent that ore particle is adsorbed on the ring arc track of cover.Make the inner material of rotary drum road unimpeded, guarantee the long-term running continuously of ore separators; The contact-making surface of lubricated simultaneously iron ore feeding hole rotary drum and support.4,, thereby make industrial water recycling owing to be provided with delivery port.Improve the concentration of ore removal simultaneously, reduced the post processing amount.5, this centrifugal ore separator electric control system is simple, gets final product continuous operation as long as in advance floss hole back pressure value is adjusted to required state.6, this machine adopts variable-frequency motor to drive, thereby might select reasonable parameter to different mineral, thereby wide adaptability.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Be illustrated as the structural representation of the embodiment of the invention.
The specific embodiment:
As shown in the figure, the invention discloses a kind of continuous disk centrifugal ore separator, comprise vertically disposed motor 1, the motor cabinet 12 that is connected with motor from top to bottom, centrifuge cup 13 that is provided with the mineral outlet that is connected with motor cabinet and the cross section that is connected with centrifuge cup are the centrifugal support 14 of parabolic shape; Described motor cabinet and centrifuge cup center are provided with vertical axis hole, by a main shaft that is connected with motor output shaft 3 pass the axis hole of described motor cabinet and centrifuge cup and stretch into centrifuge cup 13 and the cavity 15 formed with centrifugal support 14 in; Be provided with the cross section in the described cavity 15 and be parabola shaped rotary drum 6, be nested in the axle sleeve 4 on the main shaft 3 and the connecting plate 9 of connecting bushing and rotary drum; Described centrifugal support below is provided with ore pulp import 16; Described rotary drum and described centrifuge cup and centrifugal support matched in clearance, and rotary drum 6 belows are provided with the rotary drum mouth 17 corresponding with the ore pulp import.Described centrifugal support 14 sidewalls are provided with water inlet 18, and described centrifuge cup sidewall is provided with delivery port 19.Described mineral outlet is more than one, is separately positioned on the centrifuge cup sidewall position of differentiated levels from the bottom to top, is provided with the outlet of three class mineral in the present embodiment from low to high: heavy phase ore deposit outlet 20, inferior heavy phase ore deposit outlet 21 and light phase ore deposit outlet 22.The inwall distribution of mineral outlet is provided with three circle annular collection ore deposit grooves on the corresponding described centrifuge cup 13, is respectively annular collection ore deposit, heavy phase ore deposit groove 23, annular collection ore deposit, inferior heavy phase ore deposit groove 24 and annular collection ore deposit, light phase ore deposit groove 25.The output shaft of described motor 1 is connected with main shaft by elasticity linkage 2.Described connecting plate 9 by four uniformly-spaced the blade of angle form, be connected with separation video disc between the described blade with 45 degree inclination angles, described separation video disc comprises that video disc 8 is separated in time heavy phase ore deposit and video disc 9 is separated in light phase ore deposit, and its upper edge flushes with inferior heavy phase ore deposit outlet 21 and light ore deposit mutually outlet 22 respectively.Described main shaft end is provided with screw thread, and is nested with the nut 15 of fixed hub position.Be provided with bearing 10 in the described motor cabinet 12.Be provided with spring 11 between described bearing 10 and the motor cabinet 12.Described centrifugal support is arranged on the Vertical Rack 26, fixedlys connected with ground between the described Vertical Rack 26.
The running of equipment drives main shaft 3 rotations by variable-frequency motor 1 by elasticity linkage 2, and is fixedly connected by attaching nut 5 of axle sleeve 4 usefulness between main shaft and the rotary drum, rotary drum 6 is suspended in the machine, and rotates with main shaft.
In continuous disk centrifugal ore separator when work,, ore pulp enters rotary drum by bottom ore pulp import 16, and the cutting of the connecting plate 9 by axle sleeve and rotary drum makes the rotation of ore pulp one superhigh speed, the generation centrifugal action.Owing to have difference in specific gravity in the ore pulp, ore pulp is in the process that the bottom makes progress, and rises along parabolic curve shape drum inner wall in the heavy phase ore deposit, comes together in the track of ring arc collection ore deposit, goes out mine mouth 20 from heavy phase and discharges.Inferior heavy phase ore deposit and light impurity mutually then rise along each self-separation video disc 7,8 inner edge and come together in separately the ring arc track, go out mine mouth 21, gently go out mutually outside the mine mouth 22 discharge machines through time heavy phase.What simultaneously time heavy phase went out mine mouth 21 is back to iron ore feeding hole 16 than the heavy phase ore deposit.
Through experiment relatively, YX-Φ 800 * 600 (batch (-type)) centrifugal ore separator on the market, treating capacity 1.2～1.5t/h, rotating speed 380r/min, power 3kw.If one day 24h accumulated running time was 14h, then day output 17～21t/ day.Ton ore deposit power consumption 2～2.5kwh.Continuous disk centrifugal ore separator of the present invention: the type of rotary drum Φ 460 * 345 wherein.Treating capacity reaches 4～6t/h, rotating speed 2800r/min, power 4kw.Day output 96～144t/ day, ton ore deposit power consumption 0.7～1kwh.
The design of disk centrifugal ore separator of the present invention is pushed supercentrifuge to ore dressing and is already become a reality, because rotating speed is big up to 2800r/min event treating capacity, and has adopted the separation video disc so separate thoroughly, has avoided the pollution of follow-up trash discharge chats to environment.Change the situation of existing market centrifugal ore separator low yield low-quality high energy consumption, realized the breakthrough of quality and quantity.Simple in structure being convenient to of this ore separators keeped in repair, and can realize automatic operation.
After this ore separators is succeeded in developing, improve rotating speed as long as improve transmission system, uranium ore can be separated in adjustment separation video disc position in nuclear industry, protactinium is applied during the ore deposit.
The invention provides a kind of thinking and method of continuous disk centrifugal ore separator; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (10)
1, a kind of continuous disk centrifugal ore separator, it is characterized in that, the motor cabinet (12) that comprise vertically disposed motor (1) from top to bottom, is connected with motor, centrifuge cup (13) that is provided with the mineral outlet that is connected with motor cabinet and the cross section that is connected with centrifuge cup are the centrifugal support (14) of parabolic shape; Described motor cabinet and centrifuge cup center are provided with vertical axis hole, have a main shaft that is connected with motor output shaft (3) to pass the axis hole of described motor cabinet and centrifuge cup and stretch into centrifuge cup (13) and the cavity (15) formed with centrifugal support (14) in; Be provided with the cross section in the described cavity (15) and be parabola shaped rotary drum (6), be nested in the axle sleeve (4) on the main shaft (3) and the connecting plate (9) of connecting bushing and rotary drum; Described centrifugal support below is provided with ore pulp import (16); Described rotary drum and described centrifuge cup and centrifugal support matched in clearance, and rotary drum (6) below is provided with the rotary drum mouth (17) corresponding with the ore pulp import.
2, continuous disk centrifugal ore separator according to claim 1 is characterized in that, described centrifugal support (14) sidewall is provided with water inlet (18), and described centrifuge cup sidewall is provided with delivery port (19).
3, continuous disk centrifugal ore separator according to claim 1 and 2 is characterized in that, described mineral outlet is more than one, is separately positioned on the centrifuge cup sidewall position of differentiated levels from the bottom to top.
4, continuous disk centrifugal ore separator according to claim 3 is characterized in that, described connecting plate (9) by more than three uniformly-spaced the blade of angle form.
5, continuous disk centrifugal ore separator according to claim 4 is characterized in that, is connected with separation video disc with angle between the described blade, aligns with described mineral outlet in the upper edge of described separation video disc.
6, continuous disk centrifugal ore separator according to claim 1 and 2 is characterized in that, described main shaft end is provided with screw thread, and is nested with the nut (15) of fixed hub position.
7, continuous disk centrifugal ore separator according to claim 1 and 2 is characterized in that, is provided with bearing (10) in the described motor cabinet (12).
8, continuous disk centrifugal ore separator according to claim 7 is characterized in that, is provided with spring (11) between described bearing (10) and the motor cabinet (12).
9, continuous disk centrifugal ore separator according to claim 1 and 2 is characterized in that, the inwall distribution that described centrifuge cup (13) is gone up the mineral outlet is provided with annular collection ore deposit groove.
10, continuous disk centrifugal ore separator according to claim 3 is characterized in that, the output shaft of described motor (1) is connected with main shaft by elasticity linkage (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101843278A CN101632964B (en) | 2009-08-18 | 2009-08-18 | Continuous disk centrifugal ore separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101843278A CN101632964B (en) | 2009-08-18 | 2009-08-18 | Continuous disk centrifugal ore separator |
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| CN101632964A true CN101632964A (en) | 2010-01-27 |
| CN101632964B CN101632964B (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101843278A Expired - Fee Related CN101632964B (en) | 2009-08-18 | 2009-08-18 | Continuous disk centrifugal ore separator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384173A (en) * | 2010-09-03 | 2012-03-21 | 上海安亭科学仪器厂 | Coupling for motor |
| CN102397821A (en) * | 2011-12-13 | 2012-04-04 | 上海瑞威机电设备有限公司 | Cone drum of decanter centrifuge |
| CN103316782A (en) * | 2013-07-05 | 2013-09-25 | 安徽赛而特离心机有限公司 | Drum set of three-phase disc separator |
| CN104190555A (en) * | 2014-08-05 | 2014-12-10 | 苏州瑞威离心分离技术有限公司 | Horizontal spiral machine conical drum used for oil extraction of oil sand |
| CN108889460A (en) * | 2018-08-30 | 2018-11-27 | 镇江市长江机电设备厂有限公司 | A kind of disk centrifugal separator from damping |
| CN110339948A (en) * | 2019-07-07 | 2019-10-18 | 安徽益必生物科技有限公司 | A kind of slow-speed of revolution minitype particle separator |
| CN112452558A (en) * | 2020-11-08 | 2021-03-09 | 李京帅 | Disc centrifuge capable of improving separation efficiency |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU665945A1 (en) * | 1977-03-25 | 1979-06-05 | Государственный Проектно-Конструкторский Экспериментальный Институт По Обогатительному Оборудованию "Гипромашобогащение" | Settling centrifuge |
| SU691203A2 (en) * | 1977-12-16 | 1979-10-15 | Предприятие П/Я Г-4617 | Filtering centrifugal apparatus |
| US4824431A (en) * | 1987-01-13 | 1989-04-25 | Mcalister Steven A | Centrifugal concentrator |
| CN2040002U (en) * | 1988-12-02 | 1989-06-28 | 张长发 | Continuous centrifugal ore separator |
| CN2069753U (en) * | 1990-04-13 | 1991-01-23 | 云南锡业公司 | Centrifugal ore-dressing machine capable of counterflow continuous discharging |
| CN2544814Y (en) * | 2002-06-03 | 2003-04-16 | 苏惠民 | Continuous centrifugal ore separator |
| CN201493180U (en) * | 2009-08-18 | 2010-06-02 | 宜兴市华达水处理设备有限公司 | Continuous disc type centrifugal separator |
-
2009
- 2009-08-18 CN CN2009101843278A patent/CN101632964B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384173A (en) * | 2010-09-03 | 2012-03-21 | 上海安亭科学仪器厂 | Coupling for motor |
| CN102384173B (en) * | 2010-09-03 | 2014-12-10 | 上海安亭科学仪器厂 | Coupling for motor |
| CN102397821A (en) * | 2011-12-13 | 2012-04-04 | 上海瑞威机电设备有限公司 | Cone drum of decanter centrifuge |
| CN103316782A (en) * | 2013-07-05 | 2013-09-25 | 安徽赛而特离心机有限公司 | Drum set of three-phase disc separator |
| CN104190555A (en) * | 2014-08-05 | 2014-12-10 | 苏州瑞威离心分离技术有限公司 | Horizontal spiral machine conical drum used for oil extraction of oil sand |
| CN108889460A (en) * | 2018-08-30 | 2018-11-27 | 镇江市长江机电设备厂有限公司 | A kind of disk centrifugal separator from damping |
| CN110339948A (en) * | 2019-07-07 | 2019-10-18 | 安徽益必生物科技有限公司 | A kind of slow-speed of revolution minitype particle separator |
| CN110339948B (en) * | 2019-07-07 | 2021-10-15 | 安徽益必生物科技有限公司 | Low-rotation-speed micro particle separation device |
| CN112452558A (en) * | 2020-11-08 | 2021-03-09 | 李京帅 | Disc centrifuge capable of improving separation efficiency |
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| Publication number | Publication date |
|---|---|
| CN101632964B (en) | 2011-09-14 |
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Address after: 214215, No. 2, Xinxing Road, industrial district, Yixing, Jiangsu, Wuxi Patentee after: JIANGSU HUADA ENVIRONMENTAL ENGINEERING CO.,LTD. Address before: 214215, Xinxing Road, industrial concentration area, Yixing, Jiangsu, 2 Patentee before: Yixing Huada Water Treatment Equipment Co.,Ltd. |
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