CN220779654U - Drying device for flue gas desulfurization - Google Patents
Drying device for flue gas desulfurization Download PDFInfo
- Publication number
- CN220779654U CN220779654U CN202322437751.7U CN202322437751U CN220779654U CN 220779654 U CN220779654 U CN 220779654U CN 202322437751 U CN202322437751 U CN 202322437751U CN 220779654 U CN220779654 U CN 220779654U
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- Prior art keywords
- pipe
- guide funnel
- flue gas
- drying
- air
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000003546 flue gas Substances 0.000 title claims abstract description 84
- 238000001035 drying Methods 0.000 title claims abstract description 69
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- 229920000742 Cotton Polymers 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000005485 electric heating Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002745 absorbent Effects 0.000 abstract description 2
- 239000002250 absorbent Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of drying, in particular to a drying device for flue gas desulfurization, which comprises an air inlet pipe, a drying pipe, an air outlet pipe, an upper guide funnel, a heating pipe, a lower air conveying pipe and the like, wherein the top of the air inlet pipe of the air outlet pipe is connected with the air outlet pipe through the drying pipe, the upper guide funnel is fixedly arranged at the inner top of the drying pipe, a plurality of air holes are formed in the lower part of the upper guide funnel, the outer side of the lower part of the upper guide funnel is fixedly connected with a heating pipe for drying flue gas, and the inner bottom of the upper guide funnel is fixedly connected with a plurality of lower air conveying pipes. According to the utility model, the electric heating tube and the heating tube are used for heating air in the drying tube, so that a drying chamber with high heat quantity is formed in the drying tube, the drying chamber can be used for drying the flue gas when the flue gas passes, the moisture in the flue gas is reduced, and the absorbent cotton can be extruded under the action of the lifting plate, so that the moisture in the absorbent cotton is extruded, the absorbent effect of the absorbent cotton is improved, and the continuous drying of the flue gas is facilitated.
Description
Technical Field
The utility model relates to the technical field of drying, in particular to a drying device for flue gas desulfurization.
Background
The flue gas desulfurization technology is a waste gas treatment technology familiar to chemical workers and environmental protection people at present, and moisture in the flue gas desulfurization process affects the final desulfurization effect, so that the flue gas needs to be dried during flue gas desulfurization.
The utility model provides a currently published drying device for flue gas desulfurization that publication number is CN218393024U, including outlet duct and flue gas treatment tube, pass through flange joint between outlet duct and the flue gas treatment tube, the flue gas treatment tube is the inversion L type, and fixed mounting has the solid fixed ring in the flue gas treatment tube, the processing piece has been lifted to the upper surface of solid fixed ring, the surface of processing piece is laminated with the inside wall of flue gas treatment tube, and three exhaust passage that has the inflection point has been seted up in the processing piece in the running through, the inflection point department of exhaust passage all is provided with the cotton that absorbs water, install the exhaust fan in the flue gas treatment tube, the rain cover is installed on the top of flue gas treatment tube, after the exhaust fan starts, the air velocity in the flue gas treatment tube accelerates, in the exhaust passage with the gas suction of outlet duct, when gas encounters the inflection point of exhaust passage, gas collides with the cotton that absorbs water, the cotton absorbs the moisture in with gas, gas is taken out exhaust passage by the exhaust fan, finally follow the exit of flue gas treatment tube.
However, the above patent still has the following disadvantages: after moisture in the flue gas is absorbed by the absorbent cotton in the above patent, residual moisture in the absorbent cotton, and when the absorbent cotton absorbs water for a long time, the subsequent flue gas passes through the absorbent cotton again, the flue gas is easy to bring out the moisture in the washing cotton, so that the drying degree of the flue gas is reduced, and the final desulfurization effect is affected.
Disclosure of Invention
In order to overcome the defects of the existing flue gas desulfurization drying equipment, the utility model provides a drying device for flue gas desulfurization.
The technical proposal is as follows: the utility model provides a drying device for flue gas desulfurization, including the intake pipe, drying tube and outlet duct, there is the outlet duct at the intake pipe top through the drying tube connection link up, still including last guide funnel, the heating tube, lower gas-supply tube, go up the gas-supply tube, the air extraction fan, drive assembly, the lifter plate, reset spring and absorbent cotton, top fixed mounting has last guide funnel in the drying tube, it has a plurality of bleeder vents to go up guide funnel lower part outside fixedly connected with carries out the heating tube that dries to the flue gas, go up guide funnel inner bottom fixedly connected with a plurality of lower gas-supply tubes, gas outlet department sliding connection has last gas-supply tube on each lower gas-supply tube, lower gas-supply tube and the last gas-supply tube that corresponds link together form a communicating gas pipeline, the interior lower part fixedly connected with absorbent cotton of each upper gas-supply tube all overlaps on the lower gas-supply tube that corresponds, and absorbent cotton all blocks in the department of lower gas-supply tube, the inside fixed mounting has the air extraction fan that is used for extracting the flue gas, inside sliding connection has the lifter plate between lifter plate and the outlet duct, the inside is connected with reset spring, the gas outlet tube, the inside lower part is equipped with the gas outlet tube and is used for moving down the drive assembly through the gas outlet tube, the inside has the outlet hole that communicates with the inside with the outlet duct.
Further, the driving assembly comprises a worm, a worm wheel and a convex rod, the worm is fixedly connected to the rotating shaft of the air extraction fan, the worm wheel is rotatably connected to the inner lower portion of the air outlet pipe, the worm wheel is meshed with the worm, the convex rod is fixedly connected to the eccentric position of the worm wheel, and the convex rod moves downwards when rotating along with the worm wheel.
Further, the drying device also comprises a lower guide funnel and an electric heating tube, wherein the lower guide funnel is fixedly connected with the inside of the electric heating tube, the lower guide funnel is positioned right below the upper guide funnel, the electric heating tube is fixedly connected with the inner bottom of the drying tube, and the electric heating tube surrounds the outer side of the lower guide funnel.
Further, the utility model also comprises a filter screen, and the filter screen is fixedly connected inside the air outlet pipe.
Further, the device also comprises drain valves, the lower part of each lower gas pipe is fixedly connected with a drain valve, and the drain valves are all positioned under the absorbent cotton.
Further, the utility model also comprises a drain pipe, and the bottom of the upper guiding funnel is fixedly connected and communicated with the drain pipe.
Further, the bottommost part of the lower guide funnel stretches into the outlet of the air inlet pipe, so that the lower funnel shape of the lower guide funnel guides the flue gas coming out of the air inlet pipe to spread along the outer side of the lower guide funnel.
Further, the lower part of the upper guide funnel stretches into the lower guide funnel, the middle part of the upper guide funnel is funnel-shaped, when the flue gas outside the lower guide funnel is spread to be in contact with the upper guide funnel, the flue gas is guided to the inner part of the lower guide funnel by the upper guide funnel, then enters the inner part of the upper guide funnel through the air holes, and then enters the air outlet pipe through the air transmission pipe formed by the lower air transmission pipe and the upper air transmission pipe.
Further, the heating pipe and the electric heating pipe are respectively surrounded on the outer sides of the upper guide funnel and the lower guide funnel and are both positioned in the drying pipe, so that a drying chamber with high heat quantity is formed in the drying pipe.
Further, the lower gas pipe and the upper gas pipe are both copper pipes.
The utility model has the beneficial effects that: 1. according to the utility model, the electric heating tube and the heating tube are used for heating air in the drying tube, so that a drying chamber with high heat quantity is formed in the drying tube, the drying chamber can be used for drying the flue gas when the flue gas passes, the moisture in the flue gas is reduced, and the absorbent cotton can be extruded under the action of the lifting plate, so that the moisture in the absorbent cotton is extruded, the absorbent effect of the absorbent cotton is improved, and the continuous drying of the flue gas is facilitated.
2. According to the utility model, the filter screen can be used for filtering the dried flue gas, so that impurities such as dust in the flue gas are reduced.
3. According to the utility model, the water in the upper guide funnel can be discharged through the drain pipe, so that the water accumulation is avoided.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
FIG. 2 is a schematic diagram of the structure of the outlet pipe, the electric heating pipe and the lower gas pipe of the present utility model.
FIG. 3 is a schematic view of the structure of the outlet pipe, the upper guide funnel and the lower guide funnel of the present utility model.
Fig. 4 is a schematic structural view of the upper guide funnel, the lower guide funnel and the electrothermal tube according to the present utility model.
Fig. 5 is a schematic structural view of the upper guide funnel, the heating tube and the ventilation holes of the present utility model.
FIG. 6 is a schematic view of the structure of the lower air delivery pipe, the upper air delivery pipe, the air extraction fan and other parts of the utility model.
FIG. 7 is a cross-sectional view of a lower gas delivery tube and an upper gas delivery tube of the present utility model.
Fig. 8 is a schematic view of the structure of the worm, worm wheel and cam of the present utility model.
Reference numerals: 1_intake pipe, 101_dry pipe, 2_outlet pipe, 3_up guide funnel, 4_down guide funnel, 41_electrothermal pipe, 5_heating pipe, 51_ventilation hole, 6_down air pipe, 7_up air pipe, 8_air extraction fan, 9_worm, 10_worm wheel, 11_protruding rod, 12_lifting plate, 13_reset spring, 14_absorbent cotton, 15_drain valve, 16_filter screen, 17_drain pipe.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
Example 1: 1-8, including the air inlet pipe 1, the dry pipe 101, the air outlet pipe 2, the upper guide funnel 3, the lower guide funnel 4, the electric heating tube 41, the heating tube 5, the lower air delivery tube 6, the upper air delivery tube 7, the air extraction fan 8, the driving component, the lifting plate 12, the reset spring 13, the absorbent cotton 14 and the drain valve 15, the air outlet pipe 2 is connected and penetrated through at the top of the air inlet pipe 1 through the dry pipe 101, the upper guide funnel 3 is installed at the top of the dry pipe 101 through the way of the bolt, a plurality of air holes 51 are opened at the lower part of the upper guide funnel 3, the outer side of the lower part of the upper guide funnel 3 is connected with the heating tube 5 for drying the flue gas through the way of the bolt, a plurality of lower air delivery tubes 6 are fixedly and hermetically connected at the bottom of the upper guide funnel 3, the upper air delivery tube 7 is slidingly connected at the air outlet of each lower air delivery tube 6, the lower air delivery tube 6 and the upper air delivery tube 7 are copper tubes, the long-term contact moisture is avoided from rusting, the service life is prolonged, the lower air delivery pipe 6 and the corresponding upper air delivery pipe 7 are connected together to form a communicated air delivery pipeline, the inner lower part of each upper air delivery pipe 7 is fixedly connected with absorbent cotton 14, the absorbent cotton 14 is only fixedly connected with the inner lower part of the upper air delivery pipe 7 at the upper top, each upper air delivery pipe 7 is sleeved on the corresponding lower air delivery pipe 6, the absorbent cotton 14 is clamped at the air outlet of the lower air delivery pipe 6, when the upper air delivery pipe 7 drives the absorbent cotton 14 to move downwards, the absorbent cotton 14 is clamped by the lower air delivery pipe 6 and is extruded by the lower air delivery pipe 6 to deform, the air extraction fan 8 for extracting smoke is fixedly arranged in the air outlet pipe 2, the inner lower part of the air outlet pipe 2 is slidably connected with the lifting plate 12, the reset spring 13 is connected between the lifting plate 12 and the inner bottom of the air outlet pipe 2, the lower part is equipped with the actuating assembly that is used for driving lifter plate 12 to move downwards in outlet duct 2, the bottom is opened in outlet duct 2 has the venthole, and communicate with each other with last gas-supply tube 7 inside through the venthole, the inside fixedly connected with lower guide funnel 4 through the mode of bolt of electrothermal tube 41, lower guide funnel 4 is located under the upper guide funnel 3, lower guide funnel 4 bottom stretches into in the export of intake duct 1, with the flue gas that the lower funnel shape of this lower guide funnel 4 was gone out in guiding intake duct 1 stretches along lower guide funnel 4 outside, go up guide funnel 3 lower part and stretch into down guide funnel 4 inside, and go up guide funnel 3 middle part and be the funnel form, when lower guide funnel 4 outside flue gas stretches into with last guide funnel 3 contact, the flue gas will be guided to down guide funnel 4 inside, and then get into the inside of upper guide funnel 3 through bleeder vent 51, then the gas-supply tube that forms through lower guide funnel 6 and last gas-supply tube 7 gets into in outlet duct 2, the bottom fixedly connected with electrothermal tube 41 of drying tube 101, heating tube 5 and electrothermal tube 41 encircle respectively in upper guide funnel 3 and lower guide funnel 4 outside, and the inside of drying tube 101, and all be located under the drying tube 101 is located in the equal position of the equal portion of drying chamber 15 under the equal height of the equal bottom of the drying tube 101, the equal portion of drying chamber 15 is located under the equal portion of drying tube 15.
As shown in fig. 6 and 8, the driving assembly comprises a worm 9, a worm wheel 10 and a protruding rod 11, the worm 9 is fixedly connected to the rotating shaft of the air extraction fan 8, the worm wheel 10 is rotatably connected to the inner lower portion of the air outlet pipe 2, the worm wheel 10 is meshed with the worm 9, the protruding rod 11 is welded to the eccentric portion of the worm wheel 10, and the protruding rod 11 moves downwards when rotating along with the worm wheel 10 by extruding the lifting plate 12.
When the drying device is used for carrying out air intake drying treatment on flue gas, the air inlet pipe 1 is firstly communicated with a flue gas connecting pipeline, then the air exhaust fan 8, the heating pipe 5 and the electric heating pipe 41 are started, the air exhaust fan 8 works to generate suction force, so that the flue gas enters the drying pipe 101, when the flue gas is diffused upwards to be contacted with the lower guide funnel 4, the flue gas spreads along the outer side of the lower guide funnel 4 under the guiding action of the lower guide funnel 4, the flue gas is contacted with air heated by the electric heating pipe 41, the hot air heats and dries the flue gas, the primary drying of the flue gas is realized, when the flue gas is diffused along the outer side of the lower guide funnel 4, the flue gas is contacted with the funnel part of the upper guide funnel 3 and is guided into the lower guide funnel 4, and then contacts with air heated by the heating pipe one to realize secondary drying of the flue gas, the drying effect of the flue gas is improved, the dried flue gas enters the upper guide funnel 3 through the air holes 51 at the lower part of the upper guide funnel 3, under the continuous operation of the air extraction fan 8, the dried flue gas enters the air transmission pipeline formed by butting the lower air transmission pipe 6 and the upper air transmission pipe 7, the flue gas sequentially passes through the absorbent cotton 14 in the air transmission pipeline, the moisture in the flue gas is further absorbed by the absorbent cotton 14 to improve the drying degree of the flue gas, when the air extraction fan 8 continuously operates, the air extraction fan 8 drives the worm 9 to rotate, the worm 9 drives the convex rod 11 to rotate through the turbine, the convex rod 11 presses the lifting plate 12 to move downwards when being rotated to be contacted with the lifting plate 12, the reset spring 13 is compressed at the moment, the lifting plate 12 drives the upper air transmission pipe 7 and the absorbent cotton 14 to move downwards along the lower air transmission pipe 6, the absorbent cotton is clamped by the lower air transmission pipe 6, after being extruded, the inside moisture of cotton that absorbs water is extruded to the water that extrudes will drip to the below, and discharge the conduit through trap 15, when protruding pole 11 rotates to not contact with lifter plate 12, lifter plate 12 will upwards remove the reset under reset spring 13's effect, lifter plate 12 will drive upper gas-supply pipe 7 and absorbent cotton 14 and upwards remove the reset along lower gas-supply pipe 6 simultaneously, the cotton that absorbs water will not receive the extrusion any more, extend the reset under self reset effect, continue to absorb water to the flue gas, and the flue gas that carries out the drying is final will enter into outlet duct 2 through conduit yet, so realize the continuous life-level's of flue gas dry work through this device.
Example 2: on the basis of embodiment 1, as shown in fig. 8, the flue gas filter further comprises a filter screen 16, wherein the filter screen 16 is fixedly connected inside the air outlet pipe 2, after the flue gas enters the air outlet pipe 2, the flue gas passes through the air extraction fan 8 and then passes through the filter screen 16, and the filter screen 16 filters the dried flue gas, so that impurities such as dust in the flue gas are reduced.
As shown in fig. 6, the device further comprises a drain pipe 17, the bottom of the upper guide funnel 3 is fixedly connected and communicated with the drain pipe 17, after the absorbent cotton is extruded and water drops to the lower side and is discharged into the upper guide funnel 3 through the drain valve 15, water is discharged out of the device through the drain pipe 17, and water accumulation is avoided.
Claims (10)
1. A drying device for flue gas desulfurization, which comprises an air inlet pipe (1), a drying pipe (101) and an air outlet pipe (2),
the top of the air inlet pipe (1) is connected with an air outlet pipe (2) through a drying pipe (101), and is characterized by further comprising an upper guide funnel (3), a heating pipe (5), a lower air delivery pipe (6), an upper air delivery pipe (7), an air suction fan (8), a driving assembly, a lifting plate (12), a reset spring (13) and absorbent cotton (14), wherein the upper guide funnel (3) is fixedly arranged at the top in the drying pipe (101), a plurality of air holes (51) are formed in the lower part of the upper guide funnel (3), the heating pipe (5) for drying the flue gas is fixedly connected to the outer side of the lower part of the upper guide funnel (3), a plurality of lower air delivery pipes (6) are fixedly connected to the inner bottom of the upper guide funnel (3), an upper air delivery pipe (7) is slidably connected to the air outlet of each lower air delivery pipe (6), the lower air delivery pipes (6) are connected with the corresponding upper air delivery pipes (7) to form a communicated air delivery pipe, the inner lower part of each upper air delivery pipe (7) is fixedly connected with the absorbent cotton (14), each upper air delivery pipe (7) is sleeved on the corresponding lower air delivery pipe (6), the air suction pipe (6) is fixedly connected to the air outlet pipe (12) through the air outlet pipe (2), a reset spring (13) is connected between the lifting plate (12) and the air outlet pipe (2), a driving component for driving the lifting plate (12) to move downwards is arranged at the inner lower part of the air outlet pipe (2), and an air outlet hole is arranged at the inner bottom of the air outlet pipe (2) and is communicated with the inner part of the upper air delivery pipe (7).
2. The drying device for flue gas desulfurization according to claim 1, wherein the driving assembly comprises a worm (9), a worm wheel (10) and a protruding rod (11), the worm (9) is fixedly connected to a rotating shaft of the air extraction fan (8), the worm wheel (10) is rotatably connected to the inner lower portion of the air outlet pipe (2), the worm wheel (10) is meshed with the worm (9), the protruding rod (11) is fixedly connected to an eccentric position on the worm wheel (10), and the protruding rod (11) moves downwards by extruding the lifting plate (12) when rotating along with the worm wheel (10).
3. The drying device for flue gas desulfurization according to claim 2, further comprising a lower guide funnel (4) and an electric heating tube (41), wherein the lower guide funnel (4) is fixedly connected to the inside of the electric heating tube (41), the lower guide funnel (4) is located right below the upper guide funnel (3), the electric heating tube (41) is fixedly connected to the inner bottom of the drying tube (101), and the electric heating tube (41) surrounds the outer side of the lower guide funnel (4).
4. A drying apparatus for flue gas desulfurization according to claim 3, further comprising a filter screen (16), wherein the filter screen (16) is fixedly connected to the inside of the air outlet pipe (2).
5. The drying device for flue gas desulfurization according to claim 4, further comprising a drain valve (15), wherein the drain valve (15) is fixedly connected to the lower portion of each lower gas pipe (6), and the drain valve (15) is located right below the absorbent cotton (14).
6. The drying device for flue gas desulfurization according to claim 5, further comprising a drain pipe (17), wherein the bottom of the upper guide funnel (3) is fixedly connected and communicated with the drain pipe (17).
7. The drying apparatus for flue gas desulfurization according to claim 6, wherein the bottommost portion of the lower guide funnel (4) extends into the outlet of the air intake pipe (1), and the flue gas discharged from the air intake pipe (1) is guided by the lower funnel shape of the lower guide funnel (4) to spread along the outer side of the lower guide funnel (4).
8. The drying device for flue gas desulfurization according to claim 7, wherein the lower part of the upper guide funnel (3) extends into the lower guide funnel (4), the middle part of the upper guide funnel (3) is funnel-shaped, and when the flue gas outside the lower guide funnel (4) spreads to be in contact with the upper guide funnel (3), the flue gas is guided into the lower guide funnel (4) by the upper guide funnel (3), then enters the upper guide funnel (3) through the ventilation holes (51), and then enters the air outlet pipe (2) through the air delivery pipeline formed by the lower air delivery pipe (6) and the upper air delivery pipe (7).
9. The drying device for flue gas desulfurization according to claim 8, wherein the heating tube (5) and the electric heating tube (41) are respectively surrounded on the outer sides of the upper guide funnel (3) and the lower guide funnel (4) and are both positioned inside the drying tube (101), whereby a drying chamber with high heat quantity is formed inside the drying tube (101).
10. A drying apparatus for flue gas desulfurization according to claim 9, wherein the lower gas pipe (6) and the upper gas pipe (7) are both copper pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322437751.7U CN220779654U (en) | 2023-09-08 | 2023-09-08 | Drying device for flue gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322437751.7U CN220779654U (en) | 2023-09-08 | 2023-09-08 | Drying device for flue gas desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220779654U true CN220779654U (en) | 2024-04-16 |
Family
ID=90652748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322437751.7U Active CN220779654U (en) | 2023-09-08 | 2023-09-08 | Drying device for flue gas desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220779654U (en) |
-
2023
- 2023-09-08 CN CN202322437751.7U patent/CN220779654U/en active Active
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| GR01 | Patent grant | ||
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Effective date of registration: 20240909 Address after: 507, 5th Floor, Building 2, No. 11 Tianhua North Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing 102600 (Yizhuang Group, High end Industrial Zone, Beijing Pilot Free Trade Zone) Patentee after: Beijing Huipu Environmental Protection Technology Group Co.,Ltd. Country or region after: China Address before: Room B2001, Shenghailan County, No. 516 Lianfang East Road, Congtai District, Handan City, Hebei Province, 056008 Patentee before: JINDING ENVIRONMENTAL PROTECTION Co.,Ltd. HANDAN CITY Country or region before: China |