CN109126348B - A dust collector for SCR deNOx systems - Google Patents
A dust collector for SCR deNOx systems Download PDFInfo
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- CN109126348B CN109126348B CN201811031666.8A CN201811031666A CN109126348B CN 109126348 B CN109126348 B CN 109126348B CN 201811031666 A CN201811031666 A CN 201811031666A CN 109126348 B CN109126348 B CN 109126348B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Abstract
The invention discloses a dust removal device for an SCR (selective catalytic reduction) denitration system, which comprises an air inlet pipe, an exhaust pipe, a working box, a first dust removal device, a second dust removal device and a water supply device, wherein the air inlet pipe is communicated with the lower part of the side surface of the working box, the exhaust pipe is communicated with the right side of the top of the working box, a partition plate is fixed in the working box, the first dust removal device, the second dust removal device and the water supply device are all fixed in the working box, the water supply device is communicated with the second dust removal device, a water inlet pipe is fixed above the water supply device, and the water inlet pipe penetrates through the water supply device and the working box and is connected with an external water source.
Description
Technical Field
The invention belongs to the technical field of industrial flue gas treatment, and particularly relates to a dust removal device for an SCR (selective catalytic reduction) denitration system.
Background
The importance of the process of removing nitrogen oxides from combustion fumes to prevent environmental pollution has been pointed out as a worldwide problem. The mainstream process in the world comprises the following steps: SCR and SNCR. The dust removal is a process of separating the particles from the smoke dust, and collecting and recycling the particles, wherein the smoke dust is generated in the combustion process of fuel and other substances, and the smoke dust is generated in mechanical processes of crushing, screening, conveying and the like of solid materials. The flue gas is subjected to dust removal treatment after being combusted, the existing dust removal technology comprises mechanical dust removal, wet dust removal, filtering dust removal, electric dust removal and the like, and single dust removal has certain defects and the dust removal effect is not ideal.
Disclosure of Invention
According to the defects of the prior art, the invention aims to solve the technical problem of providing the dust removal device for the SCR denitration system, and the dust removal device overcomes the defect of poor effect of a single dust removal mode in the prior art by arranging the first dust removal device, the second dust removal device and the water supply device, and has the advantages of good dust removal effect and simple structure.
In order to solve the technical problems, the invention adopts the technical scheme that: a dust removal device for an SCR denitration system comprises an air inlet pipe, an exhaust pipe, a working box, a first dust removal device, a second dust removal device and a water supply device, wherein the air inlet pipe is communicated with the lower part of the side surface of the working box, the exhaust pipe is communicated with the right side of the top of the working box, a partition plate is fixed in the working box, the working box is divided into a left part and a right part by the partition plate, the first dust removal device, the second dust removal device and the water supply device are all fixed in the working box, the water supply device is fixed above the left side of the inside of the working box, the water supply device is communicated with the second dust removal device, the second dust removal device is fixed below the right side of the inside of the working box, the first dust removal device is fixed between the working box and the partition plate, the first dust removal device is positioned below the water supply device, and the air, a first water inlet pipe is fixed above the water supply device, penetrates through the water supply device and the working box and is connected with an external water source.
Preferably, the first dust removal device comprises a fixed seat, a baffle, a spring seat, a chute and a dust removal plate, wherein the chute is arranged inside the fixed seat, sliding blocks are arranged at two ends of the dust removal plate, the sliding blocks on the dust removal plate are fixed in the chute in a sliding manner, the spring seat is fixed inside the fixed seat, the spring seat is connected with the dust removal plate, the baffle is fixed inside the fixed seat, the baffle is located above the dust removal plate, and two fixed seats are respectively fixed on the working box and the partition plate.
Preferably, the second dust collector includes first water tank, water pump, water pipe, shower nozzle, drain pipe, solenoid valve and filter plate, first water tank is fixed between work box and baffle, the bottom mounting of first water tank has water pump and drain pipe, be equipped with on the drain pipe the solenoid valve, the drain pipe runs through the outside of work box, be connected with on the water pump the water pipe, the water pipe runs through baffle, dust removal board and baffle, be fixed with on the water pipe of first water tank top the shower nozzle, filter plate activity is fixed between baffle and work box, filter plate is located the top of first water tank.
Preferably, the water supply device comprises a fixed tank, a second spring seat, a piston, a cylinder, a buoy, a second water tank, a funnel, a first water level sensor and a second water level sensor, the fixed box is fixed in the working box, the second water tank is fixed in the fixed box, the fixed tank is connected with the second water tank through a second spring seat, the bottom end of the second water tank is provided with the cylinder, the cylinder penetrates through the second water tank, the piston is connected in the cylinder, the buoy is connected on the piston, the funnel is arranged right below the cylinder, the first water level sensor and the second water level sensor are arranged on the side surface in the second water tank, the second water level sensor is positioned above the first water level sensor, a through hole is formed in the top end of the second water tank, and the through hole is positioned under the first water inlet pipe.
Preferably, a blocking rod is fixed below the second water tank, a rubber block is connected to the bottom end of the blocking rod, the rubber block is located above the dust removing plate, and the distance between the rubber block and the dust removing plate is smaller than one centimeter. The setting of block rubber has reduced the damage when dust removal board striking, has increased the life of device, and the distance of block rubber and dust removal board is very little, has guaranteed that the block rubber can extrude the dust removal board.
Preferably, the dust removal plate is provided with a round hole and a square hole, a sleeve is sleeved in the round hole, the water pipe penetrates through the dust removal plate from the sleeve of the round hole, a filter screen is arranged in the square hole, a middle air pipe is connected above the square hole, and the other end of the middle air pipe penetrates through the partition plate. The middle air pipe is connected to the upper part of the filter screen, so that the smoke can enter the right side of the working box, and the smoke can be discharged conveniently.
Preferably, a second water inlet pipe is communicated with the lower portion of the funnel, and the other end of the second water inlet pipe is communicated with the inside of the first water tank.
The invention has the beneficial effects that:
1. through the setting of first dust collector and second dust collector, it is better that the dust removal effect of this device is, and the water pipe among the second dust collector is through the flue gas, and the energy has been practiced thrift in the automatic heating.
2. The water supply device is arranged to provide a water source for the second dust removal device, and the water supply device can intermittently move, so that the first dust removal device is vibrated, and dust accumulated on the first dust removal device falls.
3. The setting of first level sensor and second level sensor can come opening and closing of control solenoid valve according to the volume of second water tank normal water, and the more intelligence and the equitable of this device that make use more convenience.
Drawings
The contents of the drawings and the reference numerals in the drawings are briefly described as follows:
fig. 1 is a schematic view of the overall structure of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of an embodiment of the present invention.
Fig. 3 is a schematic structural view of a first dust removing apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a water supply apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a dust removing plate according to an embodiment of the present invention.
Wherein: 1-an air inlet pipe, 2-an exhaust pipe, 3-a work box, 4-a first dust removing device, 5-a second dust removing device, 6-a water supply device, 7-a partition plate, 8-a first water inlet pipe, 41-a fixed seat, 42-a baffle plate, 43-a spring seat, 44-a chute, 45-a dust removing plate, 46-a stop rod, 47-an intermediate air pipe, 451-a round hole, 452-a square hole, 51-a first water tank, 52-a water pump, 53-a water pipe, 54-a spray head, 55-a water outlet pipe, 56-an electromagnetic valve, 57-a filter screen plate, 58-a second water inlet pipe, 61-a fixed box, 62-a second spring seat, 63-a piston, 64-a cylinder, 65-a buoy, 66-a second water tank and 67-a funnel, 68-first level sensor, 69-second level sensor.
Detailed Description
The following embodiments are provided to describe the embodiments of the present invention, and to further describe the detailed description of the embodiments of the present invention, such as the shapes, configurations, mutual positions and connection relationships of the components, the functions and operation principles of the components, the manufacturing processes and operation methods, etc., so as to help those skilled in the art to more fully, accurately and deeply understand the inventive concept and technical solutions of the present invention.
As shown in fig. 1 to 5, a dust removing device for an SCR denitration system includes an air inlet pipe 1, an air outlet pipe 2, a work box 3, a first dust removing device 4, a second dust removing device 5, and a water supply device 6, wherein the air inlet pipe 1 is communicated with the lower part of the side surface of the work box 3, the air outlet pipe 2 is communicated with the right side of the top of the work box 3, a partition plate 7 is fixed in the work box 3, the work box 3 is divided into a left part and a right part by the partition plate 7, the first dust removing device 4, the second dust removing device 5 and the water supply device 6 are all fixed in the work box 3, the water supply device 6 is fixed above the left side of the work box 3, the water supply device 6 is communicated with the second dust removing device 5, the second dust removing device 5 is fixed below the right side of the work box 3, the first dust removing device 4 is fixed between the work box 3, the first dust removal device 4 is located below the water supply device 6, the air inlet pipe 1 and the first dust removal device 4 are located on the same side, a first water inlet pipe 8 is fixed above the water supply device 6, and the first water inlet pipe 8 penetrates through the water supply device 6 and the working box 3 and is connected with an external water source.
It is worth noting that the working box 3 is divided into a left part and a right part by the partition plate 7, the working box 3 on the left half is divided into an upper part and a lower part by the first dust removal device 4, denitrated flue gas enters the inside of the working box 3 from the air inlet pipe 1, the flue gas firstly enters the lower part of the first dust removal device 4, the flue gas is subjected to primary dust removal through the first dust removal device 4, then the flue gas flows to the second dust removal device 5 for secondary dust removal, the flue gas with complete dust removal flows to the outside of the working box 3 from the exhaust pipe 2, the water supply device 6 can provide a water source for the second dust removal device 5, the air inlet pipe 1 and the first dust removal device 4 are arranged on the same side, so that the entering flue gas firstly passes through the first dust removal device, the first water inlet pipe 8 is connected with an external water source, the tail end of the first water inlet pipe 8 is.
In this embodiment, the first dust removing device 4 includes a fixed seat 41, a baffle 42, a spring seat 43, a sliding groove 44 and a dust removing plate 45, the sliding groove 44 is arranged inside the fixed seat 41, sliding blocks are arranged at two ends of the dust removing plate 45, the sliding blocks on the dust removing plate 45 are fixed in the sliding groove 44 in a sliding manner, the spring seat 43 is fixed inside the fixed seat 41, the spring seat 43 is connected with the dust removing plate 45, the baffle 42 is fixed inside the fixed seat 41, the baffle 42 is located above the dust removing plate 45, and two of the fixed seats 41 are fixed on the work box 3 and the partition plate 7 respectively.
It is worth noting, there is the spring on the spring holder 43, spring on the spring holder can be compressed tightly under the circumstances that receives pressure, the spring can the reconversion when pressure is got rid of, spring holder 43 and dust removal board 45 elastic connection, dust removal board 45 can reciprocate along with spring holder 43, distance between baffle 42 and the dust removal board 45 is less than the distance that spring holder 43 received the pressure compression, spring holder 43 receives pressure can be compressed, when the power on spring holder 43 is lifted off suddenly, can drive dust removal board 45 upward movement on the spring holder 43, dust removal board 45 and baffle 42 can produce the collision, the slider that dust removal board 45 both ends set up is the removal that makes things convenient for dust removal board 45.
In this embodiment, the second dust removing device 5 includes a first water tank 51, a water pump 52, a water pipe 53, a spray nozzle 54, a drain pipe 55, an electromagnetic valve 56 and a filter screen plate 57, the first water tank 51 is fixed between the working tank 3 and the partition plate 7, the bottom end of the first water tank 51 is fixed with the water pump 52 and the drain pipe 55, the electromagnetic valve 56 is arranged on the drain pipe 55, the drain pipe 55 penetrates through the outside of the working tank 3, the water pipe 53 is connected to the water pump 52, the water pipe 53 penetrates through the partition plate 7, the dust removing plate 45 and the partition plate 7, the spray nozzle 54 is fixed on the water pipe 53 above the first water tank 51, the filter screen plate 57 is movably fixed between the partition plate 7 and the working tank 3, and the filter screen plate 57 is located above the first water tank 51.
It is worth noting that one end of the water pipe 53 is connected with the water pump 52, the water pipe 53 penetrates through the partition plate 7 to reach the lower part of the left side of the working box 3, the water pipe 53 is arranged spirally, the flue gas can heat the water pipe 53 due to the high temperature of the flue gas entering the position, the water in the water pipe 53 can be heated, the heated water can be changed into water mist, the water pipe 53 is arranged spirally to increase the heating time of the water pipe 53, the water pipe 53 finally penetrates through the right side of the working box 3, the spray head 54 connected to the water pipe 53 can spray the heated water mist, the sprayed water mist carries out secondary dust removal treatment on the flue gas, the water mist and solid particles in the flue gas can fall onto the filter screen plate 57 after being combined, the filter screen plate 57 can be taken down from the working box 3, the filter screen plate 57 is convenient to clean, the diameter of the filter screen mesh on the further filter screen plate 57 is smaller than that on the dust removal plate 45, the solid particles on the water mist are blocked by the filter screen plate 57, the water mist flows into the first water tank 51 to be recycled, and the electromagnetic valve 56 arranged on the water discharge pipe 55 is controlled by an external signal and can be automatically opened and closed, so that the water is convenient to discharge.
In this embodiment, the water supply device 6 includes a fixed box 61, a second spring seat 62, a piston 63, a cylinder 64, a float 65, a second water tank 66, a funnel 67, a first water level sensor 68 and a second water level sensor 69, the fixed box 61 is fixed inside the working box 3, the second water tank 66 is fixed inside the fixed box 61, the fixed box 61 and the second water tank 66 are connected through the second spring seat 62, the second spring seat 62 is composed of a spring and a spring fixing seat, the spring fixing seat is fixed on the fixed box 61 and the second water tank 66, the spring is connected between the two spring fixing seats, the number of the second spring seats 62 is at least eight, the second spring seats are respectively fixed on the top and the bottom of the second water tank 66, the cylinder 64 is arranged at the bottom end of the second water tank 66, the cylinder 64 penetrates through the second water tank 66, the piston 63 is connected inside the cylinder 64, be connected with on the piston 63 the flotation pontoon 65, install under the drum 64 the funnel 67, install on the inside side of second water tank 66 first water level sensor 68 and second water level sensor 69, second water level sensor 69 is located the top of first water level sensor 68, open on the top of second water tank 66 has the through-hole, the through-hole is located under first inlet tube 8.
In this embodiment, a blocking rod 46 is fixed below the second water tank 66, a rubber block is connected to the bottom end of the blocking rod 46, the rubber block is located above the dust removing plate 45, and the distance between the rubber block and the dust removing plate 45 is less than one centimeter.
It is noted that, when water flows into the second water tank 66 from the outside, the water in the second water tank 66 is increased, when the water level reaches the first water level sensor 68, the first water level sensor 68 transmits a signal to the outside, the external signal is transmitted to the solenoid valve 56, the control solenoid valve 56 is opened, the water in the first water tank 51 flows out, when the water level reaches the second water level sensor 69, the second water level sensor 69 controls the solenoid valve 56 to be closed, the water in the second water tank 66 is increased, the weight of the second water tank 66 is increased, the second water tank 66 compresses the second spring seat 62, the horizontal position of the second water tank 66 is lowered, the lever 46 connected below the second water tank 66 is lowered, the lever 46 is pressed to lower the dust-removing plate 45, the water in the second water tank 66 lifts the float 65, the float 65 lifts the piston 63, and the water flows down from the cylinder 64, the water flows to the funnel 67 and further flows to the first water tank 51, the weight of the second water tank 66 is suddenly reduced after the water flows out, the second water tank 66 can suddenly rise, the stop lever 46 connected to the lower portion of the second water tank 66 can suddenly rise, the dust removing plate 45 can suddenly rise at the moment, due to the vibration effect, dust accumulated on the dust removing plate 45 can fall down, a box for collecting the dust is arranged in the working box below the dust removing plate 45, and the piston 63 can be restored to the original position under the action of the gravity of the float 65 after the water flows out.
In this embodiment, the dust removing plate 45 is provided with a circular hole 451 and a square hole 452, a sleeve is sleeved in the circular hole 451, the water pipe 53 penetrates through the dust removing plate 45 from the sleeve of the circular hole 451, a filter screen is arranged in the square hole 452, a middle air pipe 47 is connected above the square hole 452, and the other end of the middle air pipe 47 penetrates through the partition plate 7.
In the present embodiment, a second water inlet pipe 58 is communicated below the funnel 67, and the other end of the second water inlet pipe 58 is communicated with the inside of the first water tank 51.
It should be noted that the filter net disposed in the square holes 452 is detachable, and the filter net can filter out some larger dust and solid particles in the smoke.
The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the precise form disclosed, and that various insubstantial modifications of the inventive concepts and solutions, or their direct application to other applications without such modifications, are intended to be covered by the scope of the invention. The protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a dust collector for SCR deNOx systems, includes intake pipe (1), blast pipe (2), work box (3), first dust collector (4), second dust collector (5), water supply installation (6) and baffle (7), its characterized in that: the dust removing device is characterized in that the air inlet pipe (1) is communicated below the side face of the working box (3), the exhaust pipe (2) is communicated on the right side of the top of the working box (3), the partition plate (7) is fixed in the working box (3), the partition plate (7) divides the working box (3) into a left part and a right part, the first dust removing device (4), the second dust removing device (5) and the water supply device (6) are fixed in the working box (3), the water supply device (6) is fixed above the left side of the inside of the working box (3), the water supply device (6) is communicated with the second dust removing device (5), the second dust removing device (5) is fixed below the right side of the inside of the working box (3), the first dust removing device (4) is fixed between the working box (3) and the partition plate (7), and the first dust removing device (4) is located below the water supply device (6), the air inlet pipe (1) and the first dust removal device (4) are arranged on the same side, a first water inlet pipe (8) is fixed above the water supply device (6), and the first water inlet pipe (8) penetrates through the water supply device (6) and the working box (3) and is connected with an external water source;
water supply installation (6) are including fixed case (61), second spring holder (62), piston (63), drum (64), flotation pontoon (65), second water tank (66), funnel (67), first level sensor (68) and second level sensor (69), the inside at work box (3) is fixed in fixed case (61), second water tank (66) are fixed in the inside of fixed case (61), be connected through second spring holder (62) between fixed case (61) and second water tank (66), the bottom of second water tank (66) is equipped with drum (64), second water tank (66) is run through to drum (64), drum (64) in-connection have piston (63), be connected with on piston (63) flotation pontoon (65), install under drum (64) funnel (67), install on the inside side of second water tank (66) first level sensor (68) and second water level sensor (68) The water level sensor (69), second water level sensor (69) is located first water level sensor (68) top, open the top of second water tank (66) has the through-hole, the through-hole is located first inlet tube (8) under.
2. The dust removing device for the SCR denitration system according to claim 1, wherein: first dust collector (4) are including fixing base (41), baffle (42), spring holder (43), spout (44) and dust removal board (45), fixing base (41) inside is equipped with spout (44), the both ends of dust removal board (45) are equipped with the slider, slider on the dust removal board (45) slides and fixes in spout (44), spring holder (43) are fixed inside fixing base (41), spring holder (43) and dust removal board (45) are connected, the inside of fixing base (41) is fixed with baffle (42), baffle (42) are located the top of dust removal board (45), fixing base (41) have two to fix respectively on work box (3) and baffle (7).
3. The dust removing device for the SCR denitration system according to claim 1, wherein: the second dust removing device (5) comprises a first water tank (51), a water pump (52), a water pipe (53), a spray head (54), a drain pipe (55), an electromagnetic valve (56) and a filter screen plate (57), wherein the first water tank (51) is fixed between the working box (3) and the partition plate (7), the water pump (52) and the drain pipe (55) are fixed at the bottom end of the first water tank (51), the electromagnetic valve (56) is arranged on the drain pipe (55), the drain pipe (55) penetrates through the outside of the working box (3), the water pipe (53) is connected onto the water pump (52), the water pipe (53) penetrates through the partition plate (7), the dust removing plate (45) and the partition plate (7), the spray head (54) is fixed on the water pipe (53) above the first water tank (51), and the filter screen plate (57) is movably fixed between the partition plate (7) and the working box (3), the filter screen plate (57) is positioned above the first water tank (51).
4. The dust removing device for the SCR denitration system according to claim 1, wherein: a blocking rod (46) is fixed below the second water tank (66), the bottom end of the blocking rod (46) is connected with a rubber block, the rubber block is located above the dust removing plate (45), and the distance between the rubber block and the dust removing plate (45) is less than one centimeter.
5. The dust removing device for the SCR denitration system according to claim 2, wherein: it has round hole (451) and square hole (452) to open on dust removal board (45), the sleeve has been cup jointed in round hole (451), water pipe (53) run through dust removal board (45) in the sleeve of round hole (451), be equipped with the filter screen in square hole (452), the top of square hole (452) is connected with middle trachea (47), baffle (7) are run through to the other end of middle trachea (47).
6. The dust removing device for the SCR denitration system according to claim 4, wherein: and a second water inlet pipe (58) is communicated with the lower part of the funnel (67), and the other end of the second water inlet pipe (58) is communicated with the inside of the first water tank (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031666.8A CN109126348B (en) | 2018-09-05 | 2018-09-05 | A dust collector for SCR deNOx systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031666.8A CN109126348B (en) | 2018-09-05 | 2018-09-05 | A dust collector for SCR deNOx systems |
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| CN109126348A CN109126348A (en) | 2019-01-04 |
| CN109126348B true CN109126348B (en) | 2021-04-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964088A (en) * | 2016-06-21 | 2016-09-28 | 昆明理工大学 | Fume desulfurization, denitrification, dust collection and waste heat recycling integrated machine for bulk curing barn |
| CN107268735A (en) * | 2017-06-28 | 2017-10-20 | 李爱勤 | A kind of anti-clogging screen pack plug and its anti-blocking method |
| CN107441865A (en) * | 2017-08-29 | 2017-12-08 | 绍兴鑫广科技有限公司 | A kind of industrial waste gas treatment device and processing method |
| CN107694227A (en) * | 2017-11-23 | 2018-02-16 | 南京中研专利技术开发有限公司 | A kind of waste gas treatment equipment with dust-removal and desulfurizing function applied to coal-burning power plant |
-
2018
- 2018-09-05 CN CN201811031666.8A patent/CN109126348B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964088A (en) * | 2016-06-21 | 2016-09-28 | 昆明理工大学 | Fume desulfurization, denitrification, dust collection and waste heat recycling integrated machine for bulk curing barn |
| CN107268735A (en) * | 2017-06-28 | 2017-10-20 | 李爱勤 | A kind of anti-clogging screen pack plug and its anti-blocking method |
| CN107441865A (en) * | 2017-08-29 | 2017-12-08 | 绍兴鑫广科技有限公司 | A kind of industrial waste gas treatment device and processing method |
| CN107694227A (en) * | 2017-11-23 | 2018-02-16 | 南京中研专利技术开发有限公司 | A kind of waste gas treatment equipment with dust-removal and desulfurizing function applied to coal-burning power plant |
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| CN109126348A (en) | 2019-01-04 |
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Effective date of registration: 20220520 Address after: 231400 No. 9, Jingwu Road, Tongcheng economic and Technological Development Zone, Anqing City, Anhui Province Patentee after: Anhui Zhiqi environmental protection equipment Co.,Ltd. Address before: 231400 No. 4, East Ring Road, Tongcheng economic and Technological Development Zone, Anqing City, Anhui Province Patentee before: Anhui Shengyun conveying equipment Co.,Ltd. |