CN205730888U - Two-track movable bed activated carbon denitrification apparatus in parallel - Google Patents
Two-track movable bed activated carbon denitrification apparatus in parallel Download PDFInfo
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- CN205730888U CN205730888U CN201620371650.1U CN201620371650U CN205730888U CN 205730888 U CN205730888 U CN 205730888U CN 201620371650 U CN201620371650 U CN 201620371650U CN 205730888 U CN205730888 U CN 205730888U
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Abstract
nullA kind of two-track movable bed activated carbon denitrification apparatus in parallel includes carbon ammonium feed arrangement，Two-track movable bed activated carbon denitrating tower (4) in parallel，Emergency treatment device，Carbon ammonium feed arrangement is by carbon ammonium conveyer (1)，Venturi (2)、Gas skirt (3) and cold wind mouth (23) composition，Two-track movable bed activated carbon denitrating tower (4) in parallel includes inlet plenum (10)、Left denitration chamber (11 1)，Right denitration chamber (11 2)，Left discharge chamber (12 1) and right discharge chamber (12 2)，There is preformed hole (21) at middle part, bottom feed bin (18)，Emergent feed bin (19) is had below preformed hole (21)、Spray equipment (9) and emergent conveyer device (8)，Left denitration chamber (11 1) and right denitration chamber (11 2) top are connected with top feed bin (5) and top Double layer locking device of air (6) in turn by distributor pipe，Discharge chamber middle and upper part has exhanst gas outlet (7) respectively，Exhanst gas outlet (7) connects air-introduced machine (22).This utility model has the advantage that pressure drop is little, nothing is leaked out, safety coefficient is high.
Description
Technical field
This utility model belongs to a kind of activated carbon denitration technology field, relates in particular to a kind of two-track movable bed activity in parallel
Charcoal denitrification apparatus.
Background technology
In air, the existence of NOx causes greatly puzzlement, the atmospheric pollution that NOx causes to the healthy living of people in recent years
Problem is increasingly subject to people's attention.At present, the technology that denitrating flue gas is conventional is SNCR (SNCR) and choosing
Selecting property catalysis reduction (SCR).Owing to activated carbon has the pore structure of uniqueness, abundant active function groups, the most thermally-stabilised
Property and the advantage such as acid resistance, reusable edible, be a kind of excellent adsorbent and catalyst, its cost is relatively low simultaneously, investment
Having a clear superiority in operation aspect, therefore activated carbon denitration technology becomes the focus technique in commercial Application in recent years.As open
Number disclose smoke eliminator and the method for a kind of simultaneous SO_2 and NO removal for the Chinese patent of CN 204502749, by series connection
Double activated carbon adsorption tower, completes flue gas desulfurization and denitrification.For another example the Chinese patent of Publication No. CN 202666687U discloses one
Flue gas purifying equipment based on activated carbon, by the way of taking stagewise air inlet on higher denitrating tower, reaches system institute
The activated carbon denitration efficiency needed.Although above method of denitration has small investment, adaptable advantage, but there is tower body pressure drop relatively
Greatly, equipment leaks out seriously, and the problems such as security of system coefficient is low improve operating cost and potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide the two-track movable bed in parallel activity that a kind of pressure drop is little, nothing is leaked out, safety coefficient is high
Charcoal denitrification apparatus.
A kind of two-track movable bed activated carbon denitrification apparatus in parallel, it includes carbon ammonium feed arrangement, two-track movable bed activated carbon in parallel
Denitrating tower 4, emergent conveyer device, it is characterised in that carbon ammonium feed arrangement is by carbon ammonium conveyer, venturi, gas skirt and cold wind
Mouth composition, venturi import is connected with cold wind mouth by flue tube, and Venturi throat is connected with carbon ammonium conveyer, outlet and gas collection
Cover connects；Two-track movable bed activated carbon denitrating tower in parallel includes inlet plenum, left denitration chamber, right denitration chamber, left discharge chamber, gives vent to anger in the right side
Room, device for discharging, bottom feed bin and bottom Double layer locking device of air, inlet plenum is between left denitration chamber and right denitration chamber, and it enters
Mouth is connected with gas skirt, and left denitration chamber is between inlet plenum and left discharge chamber, and right denitration chamber is positioned at inlet plenum and right discharge chamber
Between, left discharge chamber is identical with inlet plenum height with right discharge chamber, is placed in same position, left denitration chamber and right denitration chamber respectively
Being connected by apertured partition with between inlet plenum, left denitration chamber and right denitration chamber are respectively and between left discharge chamber and right discharge chamber
Being connected by apertured partition, the bottom of left denitration chamber and right denitration chamber connects the import of discharging feed bin in device for discharging respectively,
Device for discharging is made up of discharging feed bin, adjustable plate one, adjustable plate two and electronic discharging axle, has adjustable plate one, adjusts in discharging feed bin
Joint plate two and electronic discharging axle, adjustable plate one and adjustable plate two are positioned at above electronic discharging axle, and discharging bin outlet is expected with bottom
The import in storehouse connects, and the outlet of bottom feed bin is connected with bottom Double layer locking device of air, and bottom Double layer locking device of air is by the 3rd valve body
Be connected composition with the 4th valve body, the middle part of bottom feed bin is provided with preformed hole, and preformed hole is provided below emergent feed bin；Under emergent feed bin
There is emergency treatment device side, and emergency treatment device is made up of spray equipment and emergent conveyer device；Left denitration chamber and right denitration chamber
Top is connected with top feed bin and top Double layer locking device of air in turn by distributor pipe, and top Double layer locking device of air is by the first valve body
Connecting composition with the second valve body, the middle and upper part of left denitration chamber and right denitration chamber is respectively equipped with exhanst gas outlet, and exhanst gas outlet is with outside
Air-introduced machine connects.
Spray equipment as above is positioned at the surface of emergent conveyer device.
Spray equipment as above is made up of spray piping, and spray piping is evenly distributed with spray head.
In device for discharging as above, adjustable plate one is 40-50 ° with horizontal sextant angle β, and adjustable plate one end-to-end distance is electronic unloads
The material outer peripheral vertical dimension of axle is 3-7mm, and adjustable plate two and horizontal sextant angle α are 30-38 °, and adjustable plate two end-to-end distance is electronic unloads
The material outer peripheral vertical dimension of axle is 20-30mm.
Apertured partition mesoporous as above is 3-8mm, and percent opening is 30.68%-69.29%.
The required activated carbon of reaction is through top Double layer locking device of air, and top feed bin respectively enters two-track movable bed activated carbon in parallel
In left denitration chamber in denitrating tower and right denitration chamber, left denitration chamber and right denitration chamber, activated carbon may utilize the cold wind mouth on flue tube
Suck cold wind it is lowered the temperature, and when hot-spot occurs in activated carbon, overheated activated carbon can be discharged into emergent feed bin, recycling
Emergent conveyer device is passed to appointed place.
In preferred above-mentioned denitrification apparatus, in two-track movable bed activated carbon denitrating tower in parallel, charging aperture and discharging opening are respectively provided with
Double layer locking device of air, it is to avoid in tower due to leaking out that system negative pressure causes while continuous feeding and discharging.
In preferred above-mentioned denitrification apparatus, preformed hole offered respectively by the bottom feed bin in denitration chamber, and thereunder joins
Put emergent feed bin, when two-track movable bed activated carbon denitrification apparatus generation hot-spot in parallel, can quickly activated carbon have been drawn off.
In preferred above-mentioned denitrification apparatus, emergency treatment device is by the spray equipment group of meet an urgent need conveyer device and surface thereof
Become, spray piping is evenly distributed with spray head.When two-track movable bed activated carbon denitrification apparatus in parallel needs to disable, emergent conveying
Described activated carbon is transported appointed place by device, and relies on spray piping water spray to accelerate the fall of activated carbon in course of conveying
Temperature.
The beneficial effects of the utility model are: ensureing on the premise of denitration efficiency, it is to avoid single tower body is higher to be caused
System pressure drop increase, the problem that equipment maintenance cost is higher, simultaneously by charging aperture and discharging opening Double layer locking device of air
The sealing of the equipment that improves is set, it addition, the reserved opening bottom denitration chamber and emergent conveyer device, not only reduces equipment inspection
Repair the discharge time, reduce the loss that delays work, it also avoid two-track movable bed activated carbon denitrification apparatus in parallel when disabling, bed temperature in tower
The poly-superheating phenomenon rising initiating activity charcoal of degree.
Accompanying drawing explanation
Fig. 1 is two-track movable bed activated carbon denitrification apparatus front view in parallel
Fig. 2 is two-track movable bed activated carbon denitrification apparatus left view in parallel
Fig. 3 is apertured partition 13 schematic diagram
Fig. 4 is device for discharging 14 schematic diagram
Fig. 5 is two-track movable bed activated carbon denitrification apparatus top view in parallel.
As shown in the figure: 1 carbon ammonium conveyer, 2 venturi, 3 gas skirts, 4 two-track movable bed activated carbon denitrating towers in parallel, 5
Top feed bin, 6 top Double layer locking device of air, 61 first valve bodies, 62 second valve bodies, 7 exhanst gas outlets, 8 emergent conveying dresses
Putting, gives vent to anger in 9 spray equipments, 10 inlet plenums, the left denitration chamber of 11-1-, the right denitration chamber of 11-2-, the left discharge chamber of 12-1-, the 12-2-right side
Room, 13 apertured partition, 14 devices for discharging, the 15 electronic discharging axles of adjustable plate one, 16 adjustable plate two, 17, feed bin bottom 18,
19 meet an urgent need feed bin, Double layer locking device of air, 201 the 3rd valve bodies, 202 the 4th valve bodies, 21-preformed hole, 22-air inducing bottom 20
Machine, 23-cold wind mouth, 24-flue tube, 25-discharging feed bin.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out the technical solution of the utility model completely clearly saying
Bright.
Embodiment 1
A kind of two-track movable bed activated carbon denitrification apparatus in parallel, it includes carbon ammonium feed arrangement, two-track movable bed activated carbon in parallel
Denitrating tower 4, emergent conveyer device, it is characterised in that carbon ammonium feed arrangement is by carbon ammonium conveyer 1, venturi 2, gas skirt 3 and
Cold wind mouth 23 forms, and venturi 2 import is connected with cold wind mouth 23 by flue tube 24, and venturi 2 trunnion is with carbon ammonium conveyer 1 even
Connecing, outlet is connected with gas skirt 3；Two-track movable bed activated carbon denitrating tower 4 in parallel includes inlet plenum 10, left denitration chamber 11-1, right de-
Nitre room 11-2, left discharge chamber 12-1, right discharge chamber 12-2, device for discharging 14, bottom feed bin 18 and bottom Double layer locking device of air 20,
Inlet plenum 10 is between left denitration chamber 11-1 and right denitration chamber 11-2, and its import is connected with gas skirt 3, left denitration chamber 11-1 position
Between inlet plenum 10 and left discharge chamber 12-1, right denitration chamber 11-2 is between inlet plenum 10 and right discharge chamber 12-2, and a left side goes out
Air chamber 12-1 is the most identical with inlet plenum 10 with right discharge chamber, is placed in same position, left denitration chamber 11-1 and right denitration chamber 11-
2 are connected by apertured partition 13 with between inlet plenum 10 respectively, and left denitration chamber 11-1 and right denitration chamber 11-2 go out with a left side respectively
It is connected, under left denitration chamber 11-1 and right denitration chamber 11-2 by apertured partition 13 between air chamber 12-1 and right discharge chamber 12-2
Portion connects the import of discharging feed bin 25 in device for discharging 14 respectively, and device for discharging 14 is by discharging feed bin 25, adjustable plate 1, regulation
Plate 2 16 and electronic discharging axle 17 form, and have adjustable plate 1, adjustable plate 2 16 and electronic discharging axle 17 in discharging feed bin 25, adjust
Joint plate 1 and adjustable plate 2 16 are positioned at above electronic discharging axle 17, and discharging feed bin 25 outlet connects with the import of bottom feed bin 18
Connecing, the outlet of bottom feed bin 18 is connected with bottom Double layer locking device of air 20, bottom Double layer locking device of air 20 by the 3rd valve body 201 with
4th valve body 202 connects composition, and the middle part of bottom feed bin 18 is provided with preformed hole 21, and preformed hole 21 is provided below emergent feed bin 19；
Having emergency treatment device below emergent feed bin 19, emergency treatment device is made up of spray equipment 9 and emergent conveyer device 8；Left de-
Nitre room 11-1 and right denitration chamber 11-2 top are connected with top feed bin 5 and top Double layer locking device of air 6 in turn by distributor pipe, top
Portion's Double layer locking device of air 6 is connected by the first valve body 61 and the second valve body 62 and forms, left denitration chamber 11-1 and right denitration chamber 11-2
Middle and upper part is respectively equipped with exhanst gas outlet 7, and exhanst gas outlet 7 is connected with outside air-introduced machine 22.
Described spray equipment 9 is positioned at the surface of emergent conveyer device 8.
Described spray equipment 9 is made up of spray piping, and spray piping is evenly distributed with spray head.
In described device for discharging 14, adjustable plate 1 and horizontal sextant angle β are 45 °, the electronic discharging of adjustable plate 1 end-to-end distance
The outer peripheral vertical dimension of axle 17 is 5mm, and adjustable plate 2 16 and horizontal sextant angle α are 34 °, the electronic discharging of adjustable plate 2 16 end-to-end distance
The outer peripheral vertical dimension of axle 17 is 25mm.
Described apertured partition 13 mesoporous is 3mm, and percent opening is 69.27%.
Activated carbon needed for denitration enters the first valve body 61 of top Double layer locking device of air 6, under the opening and closing frequency determined,
Electronic Weighting system makes the first valve body 61 close, and activated carbon falls into the second valve body 62 subsequently, the second valve body 62 automatically turn on into
Enter top feed bin 5, and then fall into left denitration chamber 11-1 and right denitration chamber 11-2 along the distributor pipe tilted, this ensure that activated carbon
All the time a valve body is had to be closed during charging, it is therefore prevented that air stream, it is achieved that the continuous feeding of activated carbon.
When activated carbon fills up whole left denitration chamber 11-1 and right denitration chamber 11-2, from the flue gas of dust arrester discharge at literary composition
The carbon ammonium sent into carbon ammonium conveyer 1 at 2 trunnions in mound mixes, and after venturi 2 accelerates, is in the carbon ammonium of fluidized state at cigarette
Decomposing completely under the effect of gas waste heat, mixed flue gas enters inlet plenum 10 by gas skirt 3.
Mixed flue gas in inlet plenum 10 enters left denitration chamber 11-1 and right denitration chamber 11-2, on a left side by apertured partition 13
In denitration chamber 11-1 and right denitration chamber 11-2, the NH that carbon ammonium decomposes3Under the catalytic action of activated carbon by the NOx in flue gas also
Originally it was environmentally friendly N2, flue gas after purification by apertured partition 13 enter left discharge chamber 12-1 and right discharge chamber 12-2,
Discharge eventually through exhanst gas outlet 7, use denitration chamber in parallel under conditions of the system denitration of meeting requires, solve single
The problem that the higher system pressure drop caused of tower body increases.
In left denitration chamber 11-1 and right denitration chamber 11-2, reacted activated carbon enters the end by device for discharging 14 the most respectively
Portion's feed bin 18, in the adjustable plate 1 end-to-end distance outer peripheral vertical dimension of electronic discharging axle 17 that discharge process mesoslope angle beta is 45 °
For 5mm, this distance is not enough so that the activated carbon after denitration slips out from this side, so carries at the electronic discharging axle 17 rotated clockwise
Under Dong, activated carbon just from slope angle α be 34 ° of end-to-end distance electronic discharging axle 17 outward flange vertical dimensions be the adjustable plate 2 16 1 of 25mm
Side slips out, and falls into the speed of bottom feed bin 18 by regulating the rotating speed control activated carbon of electronic discharging axle 17, eventually falls into bottom
Activated carbon in feed bin 18 is introduced into the 3rd valve body 201 of Double layer locking device of air 20, under the opening and closing frequency determined, and electronic counterweight
Lever system makes the 3rd valve body 201 close, and activated carbon falls into the 4th valve body 202 subsequently, and the 4th valve body 202 automatically turns on, this
Sample has a valve body to be closed all the time during ensure that activated carbon discharging, improve the sealing of equipment, it is to avoid
The pressure loss caused in discharge process, maintains stable system pressure drop, and the activated carbon finally discharged from the 4th valve body 202 will
Enter next step technique.
If heat will be unable to take away in there is system failure tower in running, bed temperature can constantly raise, for keeping away
Exempt from activated carbon and gather liter hot-spot phenomenon caused because of temperature, be provided with preformed hole 21 at the middle part of bottom feed bin 18.Work as activity
When charcoal bed temperature exceedes technique early warning temperature range, by preformed hole 21, activated carbon overheated in tower can be unloaded to emergent feed bin
19, the activated carbon that emergent feed bin 19 is discharged is delivered to appointed place by the emergent conveyer device 8 of recycling, is simultaneously located at emergent conveying
Spray equipment 9 directly over device 8, has been further speeded up the cooldown rate of activated carbon, has improve system by fresh water (FW) spray
Safety.It addition, the existence of preformed hole 21 and emergent conveyer device 8 also accelerates the discharging of activated carbon, decrease because of discharging
The time longer loss that delays work caused.
For avoiding the system failure, need two-track movable bed reactor in parallel is carried out periodic maintenance, for this available air cooling
Method carries out cooling process to bed.Under the effect of air-introduced machine 22, cold air is via the cold wind mouth on former smoke conveying duct
23 two-track movable bed activated carbon denitrating towers 4 in parallel, and run by the full load of air-introduced machine 22, make cold air constantly flow through activated carbon
Bed, is quickly cooled to ambient temperature by activated carbon temperature, to ensure that the safety of whole system is stopped transport.
Embodiment 2
In device for discharging 14, adjustable plate 1 and horizontal sextant angle β are 40 °, the end-to-end distance electronic discharging axle of adjustable plate 1
17 outer peripheral vertical dimensions are 7mm, adjustable plate 2 16 and horizontal sextant angle α are 38 °, and the end-to-end distance of adjustable plate 2 16 is electronic unloads
The material outer peripheral vertical dimension of axle 17 is 30mm, and apertured partition 13 mesoporous is 5mm, and percent opening is 47.52%.Remaining is with implementing
Example 1.
Embodiment 3
In device for discharging 14, adjustable plate 1 and horizontal sextant angle β are 50 °, the end-to-end distance electronic discharging axle 17 of adjustable plate 1
Outer peripheral vertical dimension is 3mm, and adjustable plate 2 16 and horizontal sextant angle α are 30 °, the end-to-end distance electronic discharging axle of adjustable plate 2 16
17 outer peripheral vertical dimensions are 20mm, and apertured partition 13 mesoporous is 8mm, and percent opening is 30.68%.Remaining is with embodiment 1.
Claims (5)
1. a two-track movable bed activated carbon denitrification apparatus in parallel, it includes that carbon ammonium feed arrangement, two-track movable bed activated carbon in parallel take off
Nitre tower (4), emergent conveyer device, it is characterised in that carbon ammonium feed arrangement is by carbon ammonium conveyer (1), venturi (2), gas skirt
(3) forming with cold wind mouth (23), venturi (2) import is connected with cold wind mouth (23) by flue tube (24), venturi (2) trunnion
Being connected with carbon ammonium conveyer (1), outlet is connected with gas skirt (3)；Two-track movable bed activated carbon denitrating tower (4) in parallel includes inlet plenum
(10), left denitration chamber (11-1), right denitration chamber (11-2), left discharge chamber (12-1), right discharge chamber (12-2), device for discharging
(14), bottom feed bin (18) and bottom Double layer locking device of air (20), inlet plenum (10) is positioned at left denitration chamber (11-1) and right denitration
Between room (11-2), its import is connected with gas skirt (3), and left denitration chamber (11-1) is positioned at inlet plenum (10) and left discharge chamber (12-
1), between, right denitration chamber (11-2) is positioned between inlet plenum (10) and right discharge chamber (12-2), and left discharge chamber (12-1) and the right side go out
Air chamber is the most identical with inlet plenum (10), be placed in same position, left denitration chamber (11-1) and right denitration chamber (11-2) respectively with
Being connected by apertured partition (13) between inlet plenum (10), left denitration chamber (11-1) and right denitration chamber (11-2) go out with a left side respectively
It is connected by apertured partition (13) between air chamber (12-1) and right discharge chamber (12-2), left denitration chamber (11-1) and right denitration chamber
(11-2) bottom connects the import of discharging feed bin (25) in device for discharging (14) respectively, and device for discharging (14) is by discharging feed bin
(25), adjustable plate one (15), adjustable plate two (16) and electronic discharging axle (17) composition, discharging feed bin has adjustable plate one in (25)
(15), adjustable plate two (16) and electronic discharging axle (17), adjustable plate one (15) and adjustable plate two (16) are positioned at electronic discharging axle
(17) top, discharging feed bin (25) outlet is connected with the import of bottom feed bin (18), and the outlet of bottom feed bin (18) is double with bottom
Layer air-lock device (20) connects, and bottom Double layer locking device of air (20) is connected group by the 3rd valve body (201) with the 4th valve body (202)
Becoming, the middle part of bottom feed bin (18) is provided with preformed hole (21), and preformed hole (21) is provided below emergent feed bin (19)；Emergent feed bin
(19) there is emergency treatment device lower section, and emergency treatment device is made up of spray equipment (9) and emergent conveyer device (8)；Left denitration
Room (11-1) and right denitration chamber (11-2) top are connected with top feed bin (5) and top Double layer locking device of air in turn by distributor pipe
6, top Double layer locking device of air (6) is connected by the first valve body 61 and the second valve body 62 and forms, left denitration chamber (11-1) and right denitration
The middle and upper part of room (11-2) is respectively equipped with exhanst gas outlet (7), and exhanst gas outlet (7) is connected with outside air-introduced machine (22).
2. a kind of two-track movable bed activated carbon denitrification apparatus in parallel as claimed in claim 1, it is characterised in that described spray dress
Put (9) and be positioned at the surface of emergent conveyer device (8).
3. a kind of two-track movable bed activated carbon denitrification apparatus in parallel as claimed in claim 1, it is characterised in that described spray dress
Put (9) to be made up of spray piping, spray piping is evenly distributed with spray head.
4. a kind of two-track movable bed activated carbon denitrification apparatus in parallel as claimed in claim 1, it is characterised in that described discharging dress
Put adjustable plate one (15) and horizontal sextant angle β in (14) and be 40-50 °, adjustable plate one (15) end-to-end distance electronic discharging axle (17) outside
The vertical dimension of edge is 3-7mm, and adjustable plate two (16) and horizontal sextant angle α are 30-38 °, and adjustable plate two (16) end-to-end distance is electronic unloads
Material axle (17) outer peripheral vertical dimension is 20-30mm.
5. two-track movable bed activated carbon denitrification apparatus as claimed in claim 1 a kind of in parallel, it is characterised in that described with holes every
Plate (13) its aperture is 3-8mm, and percent opening is 30.68%-69.29%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371650.1U CN205730888U (en) | 2016-04-27 | 2016-04-27 | Two-track movable bed activated carbon denitrification apparatus in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371650.1U CN205730888U (en) | 2016-04-27 | 2016-04-27 | Two-track movable bed activated carbon denitrification apparatus in parallel |
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| CN205730888U true CN205730888U (en) | 2016-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108607346A (en) * | 2018-05-21 | 2018-10-02 | 中冶华天工程技术有限公司 | Parallel active coke dry-method desulfuration denitrating system |
| CN108905556A (en) * | 2018-07-13 | 2018-11-30 | 山东大学 | A kind of integral process and equipment of denitration and CO generation |
-
2016
- 2016-04-27 CN CN201620371650.1U patent/CN205730888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108607346A (en) * | 2018-05-21 | 2018-10-02 | 中冶华天工程技术有限公司 | Parallel active coke dry-method desulfuration denitrating system |
| CN108905556A (en) * | 2018-07-13 | 2018-11-30 | 山东大学 | A kind of integral process and equipment of denitration and CO generation |
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Address after: 030006 Shanxi Province, Taiyuan City District high street Ruijie Technology Centre Block B Room 302 Patentee after: Shanxi Credit Suisse Environmental Protection Engineering Co., Ltd. Address before: 030006 Shanxi Province, Taiyuan City District high street Ruijie Technology Centre Block B Room 302 Patentee before: SHANXI PUTAIXIN ENVIRONMENT PROTECTION ENGINEERING CO., LTD. |