CN204473878U - A kind of powder material weighing unit - Google Patents
A kind of powder material weighing unit Download PDFInfo
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- CN204473878U CN204473878U CN201420869106.0U CN201420869106U CN204473878U CN 204473878 U CN204473878 U CN 204473878U CN 201420869106 U CN201420869106 U CN 201420869106U CN 204473878 U CN204473878 U CN 204473878U
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- weighing
- powder material
- hopper
- cylinder
- valve
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- 239000000463 material Substances 0.000 title claims abstract description 77
- 238000005303 weighing Methods 0.000 title claims abstract description 67
- 239000000843 powder Substances 0.000 title claims abstract description 64
- 238000007599 discharging Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 241000486406 Trachea Species 0.000 claims description 5
- 210000003437 trachea Anatomy 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- -1 after once carrying Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model relates to powder material conveying technology field, particularly relate to a kind of powder material weighing unit, it is characterized in that: comprise airtight hopper of weighing (12) and the LOAD CELLS (11) for the interior powder material weight of hopper (12) of weighing described in recording; The second control unit passed through for controlling powder material is provided with at the second discharging opening (E) place of described hopper of weighing (12); Described hopper of weighing (12) is provided with inlet point (C), and described inlet point (C) is communicated with the first discharging opening (B); Described second control unit and LOAD CELLS (11) are all electrically connected with controller (10).This device take gas as the quantitative transmission that power realizes powder material, and structure is comparatively simple, and manufacturing cost and use cost is cheap, has saved productive costs.
Description
Technical field
The utility model relates to powder material conveying technology field, particularly relates to a kind of powder material weighing unit, specifically a kind of fully enclosed powder material weighing unit.
Background technology
At present, in powder material transportation art, such as, be the conveying of viscosity reduction powder, the two kinds of mode of movements usually comparatively generally adopted are: auger conveying and vacuum handling.
Screw conveyor is also known as conveyor screw, it is passed by material by the helicallobe of rotation and carries out conveyor screw conveying, be widely used in every profession and trade, be applicable to level or conveying powdered, the granular and little lump material that tilts, temperature of charge is less than 200 DEG C, and screw machine is unsuitable for carrying material perishable, viscosity, easily caking.Material is passed and carries out conveyor screw conveying by the helicallobe rotated, and the power that material is not rotated together with conveyor screw blade is that material own wt and conveyor screw casing are to the friction drag of material.But it also exists a lot of defect, is comparatively apparent that: it is unfavorable for the conveying of powder material, after once carrying, powder materials also residual a large amount of in auger, and powder material easily makes moist, and can be built-up in auger, not easy to clean.
Suction conveyor, its degree of vacuum required in vacuum handling process and want the density of transportation of substances and lift to have relation, the vacuum negative pressure of the larger needs of the larger lift of density of transportation of substances is also larger, and existing suction conveyor does not possess the function weighing material, namely can not the weight of automatic Weighing powder material, in addition, suction conveyor permissible accuracy is high, and cost costly.
Therefore, for above deficiency, need to provide a kind of closed powder material weighing unit, the dust pollution of powder material can be avoided and moistureproof object can be reached, and the object of automatic weighing material can be realized.
Utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model does not all possess the function weighing material when being and solving existing screw conveyor and suction conveyor conveying powder material, and its permissible accuracy is high, the problem involved great expense.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of powder material weighing unit, and it comprises: airtight hopper and the LOAD CELLS for powder material weight in hopper of weighing described in recording of weighing; The second control unit passed through for controlling powder material is provided with in the second discharge outlet of described hopper of weighing; Described hopper of weighing is provided with inlet point, and described inlet point is communicated with described first discharging opening; Described second control unit and LOAD CELLS are all electrically connected with controller.
Further, described second control unit comprises the second shutoff valve, the second cylinder and electric control reversing valve; To weigh described in described second shutoff valve is installed on the second discharge outlet of hopper; The cylinder body of described second cylinder is fixed, cylinder bar is connected with described second shutoff valve; Described electric control reversing valve is electrically connected with controller, and described electric control reversing valve is connected with the second cylinder, by controlling the airintake direction of the second cylinder and controlling the opening and closing of the second shutoff valve.
Further, one end of described electric control reversing valve is communicated with source of the gas, and the other end draws two tracheaes, and the tracheae often opened connects the back end interface of described second cylinder, and a normally closed tracheae connects the front end interface of the second cylinder.
Further, from source of the gas to solenoid directional control valve and the passage of electric control reversing valve be provided with oil water separator.
Further, described in hopper frame of weighing be located on weighing bracket, described LOAD CELLS is weighed between hopper and weighing bracket described.
Further, described hopper of weighing is provided with openable air extractor vent.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: the powder material weighing unit that the utility model provides, powder material in airtight storing feeding unit is flowed to airtight weighing unit by pneumatic mode reality by it, and carry out automatic Weighing by weighing unit, this device take gas as the quantitative transmission that power realizes powder material, and structure is comparatively simple, manufacturing cost and use cost is cheap, has saved productive costs.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment powder material feedway;
Fig. 2 is the schematic diagram of the storing feeding unit of the utility model embodiment powder material feedway;
Fig. 3 is the schematic diagram of the weighing unit of the utility model embodiment powder material feedway.
In figure: 1, magazine; 2, pneumatic conveying bucket; 3, solenoid directional control valve; 4, pipeline; 5, oil water separator; 6, the second shutoff valve; 7, support is weighed; 8, electric control reversing valve; 9, the second cylinder; 10, controller; 11, LOAD CELLS; 12, to weigh hopper; 13, cable; 14, door; 15, storage bin; 16, the first cylinder; 17, the first shutoff valve; 18, bar is bound; 19, link; A, admission port; B, the first discharging opening; C, inlet point; D, air extractor vent; E, the second discharging opening.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, particular case the concrete meaning of above-mentioned term in the utility model can be understood.
The utility model provides a kind of powder material feedway, it is for the conveying of powder material, the conveying of viscosity reduction powder when more importantly producing for water-permeable brick, it is propulsion source by gas, automatic Weighing can also be realized, therefore, be referred to as: the pneumatic automatic conveying device of powder material weighing type.
As shown in Figure 1, this powder material feedway comprises: storing feeding unit, weighing unit and controller 10.
Concrete, as shown in Figure 2, storing feeding unit comprises magazine 1, for airtight storage bin 15 and the pneumatic conveying bucket 2 be positioned at below described storage bin 15 of storage powder material, and described storage bin 15 is tightly connected by link 19 and pneumatic conveying bucket 2, usually, link 19 is made up of flexible material, for cost and the consideration of installing convenience, the material of described link 19 is rubber, its two ends are tightly connected with pneumatic conveying bucket 2 with described storage bin 15 respectively by binding bar 18, when having any relatively little motion like this between storage bin 15 and pneumatic conveyer bucket 2, also both leak tightnesss can be ensured.
Described storage bin 15 is provided with door 14, by door 14, powder material is inserted in storage bin 15, certainly, after door 14 is closed, be connected and sealed between the body of door 14 and storage bin 15, make to form confined space in storage bin 15.
Between described storage bin 15 and link 19, be also provided with the first control unit passed through for controlling powder material, as depicted in figs. 1 and 2, described first control unit comprises the first shutoff valve 17, first cylinder 16 and solenoid directional control valve 3; Described first shutoff valve 17 is installed between described storage bin 15 and link 19; The cylinder body of described first cylinder 16 is fixed, cylinder bar is connected with described first shutoff valve 17, and usually, the cylinder body of the first cylinder 16 is fixedly connected with the valve body of the first shutoff valve 17, cylinder bar is fixedly connected with the cut out tab of described first shutoff valve 17; Described solenoid directional control valve 3 is electrically connected with controller 10, and described solenoid directional control valve 3 is connected with the first cylinder 16, by controlling the airintake direction of the first cylinder 16 and controlling the opening and closing of the first shutoff valve 17.
More specifically, one end of described solenoid directional control valve 3 is communicated with source of the gas (being generally air compressor), the other end draws two tracheaes, the tracheae often opened connects the back end interface interface of the left end of the first cylinder 16 (namely in Fig. 1 and Fig. 2) of described first cylinder 16, and a normally closed tracheae connects the admission port A that the front end interface of the first cylinder 16 interface of the right-hand member of the first cylinder 16 (namely in Fig. 1 and Fig. 2) and pneumatic conveyer bucket 2 are provided with.Common, a normally closed tracheae connects the admission port A's that the front end interface of the first cylinder 16 and pneumatic conveyer bucket 2 be provided with by a T-pipe joint.
Also be provided with the first discharging opening B in the bottom of described pneumatic conveying bucket 2, by this first discharging opening B, the powder material in pneumatic conveying bucket 2 flowed to weighing unit and weigh.
Concrete, as shown in Figure 3, described weighing unit comprises airtight hopper 12 and the LOAD CELLS 11 for powder material weight in hopper 12 of weighing described in recording of weighing; Usually, described in hopper 12 of weighing be set up on weighing bracket 7, described LOAD CELLS 11 is weighed between hopper 12 and weighing bracket 7 described, can be recorded the weight of powder material in hopper 12 of weighing by described LOAD CELLS 11.
Second discharging opening E place of described hopper 12 of weighing is provided with the second control unit passed through for controlling powder material; Described hopper 12 of weighing is provided with inlet point C, and described inlet point C is communicated with described first discharging opening B by pipeline 4, the powder material in pneumatic conveying bucket 2 can be entered smoothly and weigh in hopper 12.
As shown in figures 1 and 3, described second control unit comprises the second shutoff valve 6, second cylinder 9 and electric control reversing valve 8; To weigh described in described second shutoff valve 6 is installed on the second discharging opening E place of hopper 12; The cylinder body of described second cylinder 9 is fixed, cylinder bar is connected with described second shutoff valve 6, and usually, the cylinder body of the second cylinder 9 is fixedly connected with the valve body of the second shutoff valve 6, cylinder bar is fixedly connected with the cut out tab of described second shutoff valve 6; Described electric control reversing valve 8 is electrically connected with controller 10, and described electric control reversing valve 8 is connected with the second cylinder 9, by controlling the airintake direction of the second cylinder 9 and controlling the opening and closing of the second shutoff valve 6.
More specifically, one end of described electric control reversing valve 8 is communicated with source of the gas (being generally air compressor), the other end draws two tracheaes, the tracheae often opened connects the back end interface interface of the left end of the second cylinder 9 (namely in Fig. 1 and Fig. 3) of described second cylinder 9, and a normally closed tracheae connects the front end interface of the second cylinder 9 interface of the right-hand member of the second cylinder 9 (namely in Fig. 1 and Fig. 3).
By controlling the opening and closing of the second shutoff valve 6, thus control powder material enters in puddle mixer from the second discharging opening E.
Due to from storage bin 1 to pneumatic conveying bucket 2, then by pipeline 4 to hopper 12 of weighing, whole process is closed space, makes powder material to flow out like this, is dispersed in air, had guarantee to the physical and mental health of operating personal.Owing to being closed space, after work certain hour, may negative pressure being formed in enclosure space, make cisco unity malfunction, therefore, need to offer openable air extractor vent D on described hopper 12 of weighing.Usually, described air extractor vent D is tightly connected by pipeline and puddle mixer.
Electric control reversing valve 8, solenoid directional control valve 3 and LOAD CELLS 11 are all electrically connected by cable 13 with controller 10.Controller 10 of the present utility model adopts PLC.Electric control reversing valve 8 and solenoid directional control valve 3 is controlled by PLC, simultaneously, LOAD CELLS 11 by the information feed back of the weight of powder material that collects to PLC, PLC controls the opening and closing of electric control reversing valve 8, solenoid directional control valve 3, and then control the opening and closing of the second shutoff valve 6, first shutoff valve 17, finally reach and accurately control the object that powder material enters subsequent processing.
As shown in Figure 1, from source of the gas to solenoid directional control valve 3 and the passage of electric control reversing valve 8 be provided with oil water separator 5.Because source of the gas (air compressor) can produce certain moisture content in the process of work, these moisture content enter whole device can cause adverse influence, such as, the powder material in device can be made to make moist.Therefore, this part ingress filter can be fallen by oil water separator 5; In addition, the self-contained amount of grease of oil water separator 5 can enter into the first cylinder 16, second cylinder 9 along with the pressed gas of air compressor, plays the effect of lubrication, and make the longer service life of whole device of a specified duration, noise is also lower.
During use, first Non-follow control first shutoff valve 17, the cylinder bar of the first cylinder 16 is moved to the left, powder material in storage bin 15 is introduced into and fills up pneumatic conveying bucket 2, two tracheaes are drawn by solenoid directional control valve 3, the tracheae often opened connects the left end of the first cylinder 16, a normally closed tracheae connects the first cylinder 16 right-hand member, the admission port A that one is received pneumatic conveying bucket 2 is separated again with tee connection, first discharging opening B of pneumatic conveying bucket 2 is communicated to the inlet point C of hopper 12 of weighing by pipeline 4, after powder material enters pneumatic conveying bucket 2, gas from the admission port A of pneumatic conveying bucket 2 enter and material loading, namely under the effect of pressed gas, to enter hopper 12 of weighing via pipeline 4 from pneumatic conveying bucket 2 and weigh, weighing of powder material is set in advance in the program of PLC, when the weight of material in hopper 12 of weighing reaches set amount, the the second discharging opening E of hopper 12 of weighing drives the second shutoff valve 6 to open by the second cylinder 9, weighted powder material enters in puddle mixer from the second discharging opening E, meanwhile, solenoid directional control valve 3 commutates, and changes the gas direction in the first cylinder 16, and namely gas enters the left end of the first cylinder 16, and the cylinder bar of the first cylinder 16 moves right, and the first shutoff valve 17 moves right and namely reaches closing function, and feeding process stops, second electric control reversing valve 8 is had an effect simultaneously, and change the gas direction entering the second cylinder 9, thus make gas enter the right-hand member of the second cylinder 9, the cylinder bar of the second cylinder 9 pulls open the second shutoff valve 6 to left movement, and powder material enters in puddle mixer from hopper 12 of weighing.
Powder material feedway of the present utility model is closed system, and can effectively avoid the dust pollution of powder material and can reach moistureproof object, the weighing mechanism arranged in addition can reach the object of automatic weighing material.
In sum, the powder material feedway that the utility model provides, powder material in airtight storing feeding unit is flowed to weighing unit by pneumatic mode reality by it, and carry out automatic Weighing, this device take gas as the quantitative transmission that power realizes powder material, and structure is comparatively simple, manufacturing cost and use cost is cheap, has saved productive costs.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a powder material weighing unit, is characterized in that: comprise airtight hopper of weighing (12) and the LOAD CELLS (11) for the interior powder material weight of hopper (12) of weighing described in recording; The second control unit passed through for controlling powder material is provided with at the second discharging opening (E) place of described hopper of weighing (12); Described hopper of weighing (12) is provided with inlet point (C), and described inlet point (C) is communicated with the first discharging opening (B); Described second control unit and LOAD CELLS (11) are all electrically connected with controller (10).
2. powder material weighing unit according to claim 1, is characterized in that: described second control unit comprises the second shutoff valve (6), the second cylinder (9) and electric control reversing valve (8); To weigh described in described second shutoff valve (6) is installed on the second discharging opening (E) place of hopper (12); The cylinder body of described second cylinder (9) is fixed, cylinder bar is connected with described second shutoff valve (6); Described electric control reversing valve (8) is electrically connected with controller (10), and described electric control reversing valve (8) is connected with the second cylinder (9), by controlling the airintake direction of the second cylinder (9) and controlling the opening and closing of the second shutoff valve (6).
3. powder material weighing unit according to claim 2, it is characterized in that: one end of described electric control reversing valve (8) is communicated with source of the gas, the other end draws two tracheaes, the tracheae often opened connects the back end interface of described second cylinder (9), and a normally closed tracheae connects the front end interface of the second cylinder (9).
4. powder material weighing unit according to claim 3, is characterized in that: from source of the gas to solenoid directional control valve, the passage of (3) and electric control reversing valve (8) is provided with oil water separator (5).
5. powder material weighing unit according to claim 1, it is characterized in that: described in hopper (12) of weighing be set up on weighing bracket (7), weigh described in described LOAD CELLS (11) is positioned between hopper (12) and weighing bracket (7).
6. powder material weighing unit according to claim 1, is characterized in that: on described hopper of weighing (12), be provided with openable air extractor vent (D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869106.0U CN204473878U (en) | 2014-12-31 | 2014-12-31 | A kind of powder material weighing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869106.0U CN204473878U (en) | 2014-12-31 | 2014-12-31 | A kind of powder material weighing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204473878U true CN204473878U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420869106.0U Expired - Fee Related CN204473878U (en) | 2014-12-31 | 2014-12-31 | A kind of powder material weighing unit |
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| Country | Link |
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| CN (1) | CN204473878U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225509A (en) * | 2018-04-12 | 2018-06-29 | 新郑市宝德高技术有限公司 | A kind of excellent brown fused alumina micropowder weighing equipment of dust reduction capability |
| CN109095204A (en) * | 2018-10-22 | 2018-12-28 | 欣好科技有限公司 | A kind of dedusting type granular material weighing Storage appts. |
| CN110230258A (en) * | 2018-03-05 | 2019-09-13 | 河北高达电子科技有限公司 | A kind of squeezing trolley slurry-outlet quantity metering method and squeezing trolley |
| CN111298719A (en) * | 2020-03-11 | 2020-06-19 | 山东新德邦自动化设备有限公司 | Powder precision metering feeder |
| TWI819472B (en) * | 2022-01-21 | 2023-10-21 | 桓達科技股份有限公司 | Dust concentration meter calibration system |
-
2014
- 2014-12-31 CN CN201420869106.0U patent/CN204473878U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230258A (en) * | 2018-03-05 | 2019-09-13 | 河北高达电子科技有限公司 | A kind of squeezing trolley slurry-outlet quantity metering method and squeezing trolley |
| CN108225509A (en) * | 2018-04-12 | 2018-06-29 | 新郑市宝德高技术有限公司 | A kind of excellent brown fused alumina micropowder weighing equipment of dust reduction capability |
| CN109095204A (en) * | 2018-10-22 | 2018-12-28 | 欣好科技有限公司 | A kind of dedusting type granular material weighing Storage appts. |
| CN109095204B (en) * | 2018-10-22 | 2024-04-12 | 欣好科技有限公司 | Dust type powdery material storage device that weighs |
| CN111298719A (en) * | 2020-03-11 | 2020-06-19 | 山东新德邦自动化设备有限公司 | Powder precision metering feeder |
| TWI819472B (en) * | 2022-01-21 | 2023-10-21 | 桓達科技股份有限公司 | Dust concentration meter calibration system |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20160825 Address after: 100085 room B, block B509, Jiahua building, No. 9, 3rd Street, Beijing, Haidian District Patentee after: BEIJING RECHSAND ECOLOGICAL ENVIRONMENT PROTECTION SCIENCE & TECHNOLOGY CO.,LTD. Address before: 100085 B, Ka Wah building, No. 9, 3rd Street, Beijing, Haidian District, B508 Patentee before: BEIJING RECHSAND SCIENCE & TECHNOLOGY GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Patentee after: ANHUI RENCHUANG ECOLOGICAL ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 100085 room B, block B509, Jiahua building, No. 9, 3rd Street, Beijing, Haidian District Patentee before: BEIJING RECHSAND ECOLOGICAL ENVIRONMENT PROTECTION SCIENCE & TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Patentee after: RENCHSAND ECO-ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Patentee before: ANHUI RENCHUANG ECOLOGICAL ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 |
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| CF01 | Termination of patent right due to non-payment of annual fee |