CN210993708U - Flue gas desulfurization denitration dust removal integrated device - Google Patents
Flue gas desulfurization denitration dust removal integrated device Download PDFInfo
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- CN210993708U CN210993708U CN201921568160.0U CN201921568160U CN210993708U CN 210993708 U CN210993708 U CN 210993708U CN 201921568160 U CN201921568160 U CN 201921568160U CN 210993708 U CN210993708 U CN 210993708U
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Abstract
The utility model provides a desulfurization and denitrification integrated device, which comprises a dust remover, a desulfurization and denitrification tower and a liquid storage tank; the desulfurization and denitrification tower comprises an air suction layer, a spraying layer, a demisting layer and a flue gas outlet from bottom to top, wherein a first partition plate is arranged between the air suction layer and the spraying layer, a second partition plate is arranged between the spraying layer and the demisting layer, and a third partition plate in the vertical direction is arranged in the spraying layer to divide the spraying layer into a first spraying chamber and a second spraying chamber which are sealed and isolated from each other; the area of the first partition board corresponding to the first spray chamber is provided with a smoke inlet pipe which vertically extends downwards into the air suction layer, and the area of the first partition board corresponding to the second spray chamber is uniformly provided with first vent holes which are communicated with the second spray chamber and the air suction layer. Due to the arrangement of the smoke inlet pipe and the overflow pipe, the smoke passes through the smoke inlet pipe and forms an aeration absorption effect with the spray liquid in the air suction layer, so that the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved.
Description
Technical Field
The utility model belongs to the technical field of flue gas purification equipment, concretely relates to flue gas desulfurization denitration dust removal integrated device.
Background
The desulfurization and denitrification treatment of the coking flue gas in the prior art has various modes, but the prior art method and the device have the defects that: the device of prior art handles the flow reasonable inadequately, and the SOx/NOx control gas-liquid mixture is not enough when spraying, leads to flue gas desulfurization, denitration, dust removal effect relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the weak point that prior art exists and provide a SOx/NOx control integrated device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a desulfurization and denitrification integrated device comprises a dust remover, a desulfurization and denitrification tower and a liquid storage tank;
the inlet of the dust remover is connected with a coke oven flue gas inlet pipeline;
the desulfurization and denitrification tower comprises an air suction layer, a spraying layer, a demisting layer and a flue gas outlet from bottom to top, wherein a first partition plate is arranged between the air suction layer and the spraying layer, a second partition plate is arranged between the spraying layer and the demisting layer, and a third partition plate in the vertical direction is arranged in the spraying layer to divide the spraying layer into a first spraying chamber and a second spraying chamber which are sealed and isolated from each other;
the upper part of the first spray chamber is provided with a flue gas inlet of the desulfurization and denitrification tower, the flue gas inlet of the desulfurization and denitrification tower is connected with an outlet pipeline of a dust remover, the first spray chamber is provided with a first spray head, the spraying direction of the first spray head is upward or upward in an inclined manner, the first spray head is connected with a liquid storage tank pipeline through a liquid transfer pump, a region corresponding to the first spray chamber on the first partition plate is provided with a flue gas inlet pipe vertically extending downwards into the air suction layer, a region corresponding to the second spray chamber on the first partition plate is uniformly provided with first vent holes communicated with the second spray chamber and the air suction layer, a region corresponding to the first spray chamber on the second partition plate is sealed, and a region corresponding to the second spray chamber on the second partition plate is uniformly provided with second vent holes communicated with the second spray chamber and the demisting layer;
the air suction layer is provided with an overflow pipe, the overflow pipe is communicated with the liquid storage tank through a pipeline, the smoke inlet pipe is communicated with the first spraying chamber and the air suction layer, the inlet of the smoke inlet pipe is arranged on the first partition plate, and the outlet height of the smoke inlet pipe is lower than the inlet height of the overflow pipe;
the second spray chamber is provided with a second spray head, and the second spray head is connected with the liquid storage tank through a liquid transfer pump;
the liquid storage tank is provided with a water supply device, a calcium hypochlorite feeding device and a calcium oxide feeding device.
The application method of the desulfurization and denitrification integrated device comprises the following steps: the coke oven flue gas enters the first spray chamber through a flue gas inlet arranged at the upper part of the first spray chamber after being dedusted by a deduster and then moves downwards, the mixed solution of calcium hydroxide and calcium hypochlorite in the liquid storage tank is sprayed upwards or obliquely upwards in the first spray chamber through the first spray head, the spray liquid and the flue gas move reversely, nitrogen oxide and sulfur oxide in the flue gas are oxidized and absorbed by the spray liquid, the gas continues to move downwards, the upward sprayed spray liquid moves upwards to the highest position and then falls freely to be contacted with the flue gas again, then the flue gas and the spray liquid enter the air suction layer through the flue gas inlet pipe, when the spray liquid of the air suction layer submerges the inlet of the flue gas inlet pipe (the spray liquid can be input to the inlet of the flue gas inlet pipe in advance before the flue gas inlet pipe), the flue gas of the first spray chamber passing through the flue gas inlet pipe is introduced into the spray liquid to form bubbles to be contacted with the spray liquid and then oxidized and, then overflow from the spray liquid of the air suction layer, enter into the second spray chamber through the first vent hole arranged on the first clapboard, contact with the spray liquid sprayed from the second spray header for oxidation and absorption, and then enter into the demisting layer through the second vent hole arranged on the second clapboard for demisting and then discharge. Through reasonable design, the desulfurization and denitrification integrated device enables the flue gas to sequentially pass through the oxidation absorption treatment of the spray liquid of the first spray chamber, the air suction layer and the second spray chamber, so that the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved; the flue gas inlet in the first spray chamber is arranged at the upper part, the spray head is arranged at the lower part and sprays upwards, so that spray liquid has two contact opportunities with the flue gas in the first spray chamber, and the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved; due to the arrangement of the smoke inlet pipe and the overflow pipe, the spraying liquid sprayed by the first spraying chamber and the second spraying chamber enters the air suction layer, and a part of the spraying liquid is accumulated in the air suction layer; the desulfurization and denitrification integrated device enables all the spraying liquid to be recycled, and saves raw materials.
Preferably, the first spray headers are uniformly and vertically distributed on the inner side wall of the spray layer, the distance between the first spray headers and the second partition plate is one third to two thirds of the height of the spray layer, and the included angle between the spraying direction of the first spray headers and the vertical direction is 45-60 degrees.
When the distance between the first spray header and the second partition board is one third to two thirds of the height of the spray layer and the included angle between the spraying direction of the first spray header and the vertical direction is 45-60 degrees, the upward sprayed spray liquid and the downward moving smoke gas can be contacted twice and fully contacted, and the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved.
Preferably, the first spray headers are uniformly distributed on a horizontal section of the first spray chamber, the distance between the horizontal section and the first partition plate is one fourth to one half of the height of the spray layer, and an included angle between the spraying direction of the first spray headers and the vertical direction is 0-5 degrees.
When the first spray headers are uniformly distributed on the horizontal section of the first spray chamber, the distance between the horizontal section and the first partition plate is one fourth to one half of the height of the spray layer, and the included angle between the spray direction of the first spray headers and the vertical direction is 0-5 degrees, the upward sprayed spray liquid and the downward moving smoke gas can be contacted twice and fully contacted, so that the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved.
Preferably, the flue gas inlet of the desulfurization and denitrification tower is connected with a gas uniform distribution pipe, the outlets of the gas uniform distribution pipe are uniformly distributed on the same horizontal plane in the first spray chamber, and the distance between the outlets of the gas uniform distribution pipe and the second partition plate is less than 3 cm.
When the flue gas inlet of the desulfurization and denitrification tower is connected with a gas uniform distribution pipe, the outlets of the gas uniform distribution pipe are uniformly distributed on the same horizontal plane in the first spray chamber, the distance between the outlets of the gas uniform distribution pipe and the second partition plate is less than 3cm, so that the flue gas can be more uniformly distributed on the upper part of the first spray chamber and can move downwards, and dead angles are reduced.
Preferably, a pipeline between the outlet of the dust remover and the pipeline of the flue gas inlet of the desulfurization and denitrification tower is connected with a fan, and the fan is connected in series between the outlet of the dust remover and the pipeline of the flue gas inlet of the desulfurization and denitrification tower.
The arrangement of the fan increases the power of the movement of the flue gas.
Preferably, the distance between the outlet of the smoke inlet pipe and the bottom of the air suction layer is 3% -10% of the height of the air suction layer.
The outlet of the smoke pipe is arranged lower, so that the contact time of the smoke and the spray liquid deposited in the air suction layer is longer, the aeration effect is more obvious, and the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved.
Preferably, the distance between the inlet of the overflow pipe and the first baffle is 15% -25% of the height of the air suction layer.
The setting of overflow pipe entry position makes the flue gas longer with the time of the deposit liquid contact that sprays in the layer of breathing in, and the effect of aeration is more obvious, and has kept certain distance with first baffle for the liquid upper portion on layer of breathing in keeps certain gas space, has reduced the resistance of flue gas transmission.
Preferably, a plurality of smoke inlet pipes vertically extending downwards into the air suction layer are uniformly arranged on the first partition board corresponding to the area of the first spray chamber, and the diameter of the smoke inlet pipe outlet is 0.5-1.5 cm.
The smoke inlet pipe of the desulfurization and denitrification integrated device can form better smoke bubbles in the air suction layer, and is favorable for improving the oxidation absorption efficiency of nitrogen oxides and sulfur oxides.
Preferably, a stirring device is arranged in the liquid storage tank.
Preferably, the desulfurization and denitrification integrated device further comprises a standby liquid storage tank, and the standby liquid storage tank is the same as the liquid storage tank.
The arrangement of the standby liquid storage tanks enables the liquid storage tanks to be used alternately, and the time of the flow is reasonably saved.
Preferably, the bottom of the air suction layer is communicated with a liquid discharge pipe, and a valve is arranged on the liquid discharge pipe.
The beneficial effects of the utility model reside in that: the utility model provides a SOx/NOx control integrated device. The desulfurization and denitrification integrated device of the utility model has the advantages that through reasonable design, the flue gas sequentially passes through the oxidation absorption treatment of the spray liquid of the first spray chamber, the air suction layer and the second spray chamber, so that the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved; the flue gas inlet in the first spray chamber is arranged at the upper part, the spray head is arranged at the lower part and sprays upwards, so that spray liquid has two contact opportunities with the flue gas in the first spray chamber, and the oxidation absorption efficiency of nitrogen oxides and sulfur oxides is improved; due to the arrangement of the smoke inlet pipe and the overflow pipe, the spraying liquid sprayed by the first spraying chamber and the second spraying chamber enters the air suction layer, and a part of the spraying liquid is accumulated in the air suction layer; the utility model discloses a SOx/NOx control integrated device makes all spray liquid can cyclic utilization, has practiced thrift the raw materials.
Drawings
Fig. 1 is the utility model discloses a SOx/NOx control integrated device's of embodiment structural schematic diagram.
Fig. 2 is a schematic view of a-a cross section of a desulfurization and denitrification integrated device according to an embodiment of the present invention.
Fig. 3 is the utility model discloses a SOx/NOx control integrated device's schematic structure diagram.
Fig. 4 is a schematic diagram of a B-B cross section of a desulfurization and denitrification integrated device according to an embodiment of the present invention.
1. The desulfurization and denitrification tower comprises a desulfurization and denitrification tower body 2, a dust remover 3, a gas suction layer 4, a first partition plate 5, a spraying layer 6, a defogging layer 7, a flue gas outlet 8, a smoke inlet pipe 9, a first vent hole 10, a first spray head 11, a desulfurization and denitrification tower flue gas inlet 12, a second spray head 13, a second partition plate 14, an overflow pipe 15, a third partition plate 16, a liquid storage tank 17, a stirring device 18, a water supply device 19, a calcium hypochlorite feeding device 20, a calcium oxide feeding device 21, a dust remover inlet 22, a dust remover outlet 23, a second spray chamber 24, a first spray chamber 25 and a second vent hole.
Detailed Description
For better illustrating the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following embodiments.
Example 1
As shown in fig. 1, the integrated desulfurization and denitrification device according to the embodiment of the present invention includes a dust collector 2, a desulfurization and denitrification tower 1, a liquid storage tank 16, and a spare liquid storage tank;
the dust remover inlet 21 is connected with a coke oven flue gas inlet pipeline;
the desulfurization and denitrification tower comprises an air suction layer 3, a spraying layer 5, a demisting layer 6 and a flue gas outlet 7 from bottom to top, wherein a first partition plate 4 is arranged between the air suction layer 3 and the spraying layer 5, a second partition plate 13 is arranged between the spraying layer 5 and the demisting layer 6, a third partition plate 15 in the vertical direction is arranged in the spraying layer 5 to divide the spraying layer 5 into a first spraying chamber 24 and a second spraying chamber 23 which are mutually sealed and isolated, as shown in fig. 2, the spraying layer 5 of the desulfurization and denitrification tower is cylindrical, the third partition plate 15 is in the shape of a vertical cylindrical barrel, and the third partition plate 15 in the vertical direction divides the spraying layer 5 into a circular first spraying chamber 24 and a circular second spraying chamber 23 which are mutually sealed and isolated;
the upper part of a first spray chamber 24 is provided with a flue gas inlet 11 of a desulfurization and denitrification tower, the flue gas inlet 11 of the desulfurization and denitrification tower is connected with a gas uniform distribution pipe, outlets of the gas uniform distribution pipe are uniformly distributed on the same horizontal plane in the first spray chamber, the distance between the outlets of the gas uniform distribution pipe and a second clapboard is less than 3cm, the flue gas inlet 11 of the desulfurization and denitrification tower is connected with a dust remover outlet 22 through a pipeline, a fan is connected between the dust remover outlet 22 and the flue gas inlet 11 of the desulfurization and denitrification tower through a pipeline, the fan is connected between the dust remover outlet 22 and the flue gas inlet 11 of the desulfurization and denitrification tower in series, the first spray chamber 24 is provided with a first spray header 10, the first spray header 10 is uniformly and vertically distributed on the inner side wall of a spray layer 5, the distance between the first spray header 10 and the second clapboard 12 is one-third to two-thirds of the height of the spray layer 5, and the included angle between the spray direction of the first spray, the first spray header 10 is connected with the liquid storage tank 16 through a pipeline by an infusion pump, a plurality of smoke inlet pipes 8 which vertically extend downwards into the air suction layer are arranged on the first partition plate 4 corresponding to the first spray chamber 24, the diameter of the smoke inlet pipe outlet is 0.8cm, first vent holes 9 which are communicated with the second spray chamber 23 and the air suction layer 3 are uniformly arranged on the first partition plate 4 corresponding to the second spray chamber 23, the second partition plate 13 is sealed corresponding to the first spray chamber, and second vent holes 25 which are communicated with the second spray chamber 23 and the demisting layer 6 are uniformly arranged on the second partition plate 13 corresponding to the second spray chamber 23;
the air suction layer 3 is provided with an overflow pipe 14, the overflow pipe 14 is communicated with a liquid storage tank 16 through a pipeline, the smoke inlet pipe 8 is communicated with the first spray chamber 24 and the air suction layer 3, the inlet of the smoke inlet pipe 8 is arranged on the first partition plate 4, the outlet height of the smoke inlet pipe 8 is lower than the inlet height of the overflow pipe 14, the distance from the outlet of the smoke inlet pipe 8 to the bottom of the air suction layer 3 is 3% -10% of the height of the air suction layer, the distance from the inlet of the overflow pipe 14 to the first partition plate 9 is 15% -25% of the height of the air suction layer, the bottom of the air suction layer is communicated with a liquid discharge pipe, and a valve is arranged;
the second spray chamber is provided with a second spray head 12, and the second spray head 12 is connected with the liquid storage tank 16 through a pipeline by an infusion pump;
the liquid storage tank is provided with a stirring device 17, a water supply device 18, a calcium hypochlorite feeding device 19 and a calcium oxide feeding device 20;
the standby liquid storage tank is the same as the liquid storage tank.
The application method of the desulfurization and denitrification integrated device in the embodiment comprises the following steps: spraying liquid is input to an inlet submerged with a smoke inlet pipe 8 in advance, coke oven smoke enters a smoke inlet 11 arranged at the upper part of a first spraying chamber through a fan after being dedusted by a deduster 2, and is uniformly distributed at the upper part of the first spraying chamber 24 through a gas uniform distribution pipe communicated with the smoke inlet and then moves downwards, a mixed solution of calcium hydroxide and calcium hypochlorite in a liquid storage tank 16 is sprayed upwards or obliquely upwards in the first spraying chamber 24 through a first spraying head 10, the spraying liquid and the smoke move reversely, nitrogen oxide and sulfur oxide in the smoke are oxidized and absorbed by the spraying liquid, the gas continues to move downwards, the sprayed spraying liquid upwards moves to the highest position and then freely falls to be contacted with the smoke again, then the smoke and the spraying liquid enter an air suction layer 3 through the smoke inlet pipe 8, the smoke is introduced into the spraying liquid through the smoke inlet pipe 8 to form bubbles to be contacted with the spraying liquid, and has an aeration effect, and oxidizing and absorbing, overflowing from the spray liquid of the air suction layer 3, entering the second spray chamber 23 through the first vent holes 9 formed in the first partition plate 4, contacting with the spray liquid sprayed from the second spray header 12 to perform oxidizing and absorbing, entering the demisting layer 6 through the second vent holes 25 formed in the second partition plate, demisting, and discharging.
The desulfurization and denitrification integrated device of the embodiment has the dust removal efficiency of more than 97%, the desulfurization efficiency of more than 95% and the denitrification efficiency of more than 85%.
Example 2
As the utility model discloses SOx/NOx control integrated device of embodiment, as shown in FIG. 3, FIG. 4, the only difference of this embodiment and embodiment 1 is: the first spray headers 10 are uniformly distributed on the horizontal section of the first spray chamber 24, the distance between the horizontal section and the first partition plate is one fourth to one half of the height of a spray layer, and the spraying direction of the first spray headers is vertical upwards.
The desulfurization and denitrification integrated device of the embodiment has the dust removal efficiency of more than 97%, the desulfurization efficiency of more than 95% and the denitrification efficiency of more than 85%.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A flue gas desulfurization, denitrification and dust removal integrated device is characterized by comprising a dust remover, a desulfurization and denitrification tower and a liquid storage tank;
the inlet of the dust remover is connected with a coke oven flue gas inlet pipeline;
the desulfurization and denitrification tower comprises an air suction layer, a spraying layer, a demisting layer and a flue gas outlet from bottom to top, wherein a first partition plate is arranged between the air suction layer and the spraying layer, a second partition plate is arranged between the spraying layer and the demisting layer, and a third partition plate in the vertical direction is arranged in the spraying layer to divide the spraying layer into a first spraying chamber and a second spraying chamber which are sealed and isolated from each other;
the upper part of the first spray chamber is provided with a flue gas inlet of the desulfurization and denitrification tower, the flue gas inlet of the desulfurization and denitrification tower is connected with an outlet pipeline of a dust remover, the first spray chamber is provided with a first spray head, the spraying direction of the first spray head is upward or upward in an inclined manner, the first spray head is connected with a liquid storage tank pipeline through a liquid transfer pump, a region corresponding to the first spray chamber on the first partition plate is provided with a flue gas inlet pipe vertically extending downwards into the air suction layer, a region corresponding to the second spray chamber on the first partition plate is uniformly provided with first vent holes communicated with the second spray chamber and the air suction layer, a region corresponding to the first spray chamber on the second partition plate is sealed, and a region corresponding to the second spray chamber on the second partition plate is uniformly provided with second vent holes communicated with the second spray chamber and the demisting layer;
the air suction layer is provided with an overflow pipe, the overflow pipe is communicated with the liquid storage tank through a pipeline, the smoke inlet pipe is communicated with the first spraying chamber and the air suction layer, the inlet of the smoke inlet pipe is arranged on the first partition plate, and the outlet height of the smoke inlet pipe is lower than the inlet height of the overflow pipe;
the second spray chamber is provided with a second spray head, and the second spray head is connected with the liquid storage tank through a liquid transfer pump;
the liquid storage tank is provided with a water supply device, a calcium hypochlorite feeding device and a calcium oxide feeding device.
2. The integrated device for flue gas desulfurization, denitrification and dust removal according to claim 1, wherein the first spray headers are uniformly and vertically distributed on the inner side wall of the spray layer, the distance between the first spray headers and the second partition plate is one third to two thirds of the height of the spray layer, and the included angle between the spraying direction of the first spray headers and the vertical direction is 45-60 degrees.
3. The integrated device for flue gas desulfurization, denitrification and dust removal according to claim 1, wherein the first spray headers are uniformly distributed on a horizontal section of the first spray chamber, the distance between the horizontal section and the first partition plate is one quarter to one half of the height of the spray layer, and the included angle between the spraying direction of the first spray headers and the vertical direction is 0-5 degrees.
4. The integrated device for desulfurization, denitrification and dedusting of flue gas as claimed in claim 1, wherein the flue gas inlet of the desulfurization and denitrification tower is connected with a gas uniform distribution pipe, the outlets of the gas uniform distribution pipe are uniformly distributed on the same horizontal plane in the first spray chamber, and the distance between the outlet of the gas uniform distribution pipe and the second partition plate is less than 3 cm.
5. The integrated device for desulfurization, denitrification and dedusting of flue gas as claimed in claim 1, wherein a fan is connected with a pipeline between the outlet of the dust remover and the pipeline of the flue gas inlet of the desulfurization and denitrification tower, and the fan is connected in series between the outlet of the dust remover and the pipeline of the flue gas inlet of the desulfurization and denitrification tower.
6. The integrated device for flue gas desulfurization, denitrification and dust removal as claimed in claim 1, wherein the distance from the outlet of the smoke inlet pipe to the bottom of the air suction layer is 3% -10% of the height of the air suction layer.
7. The integrated device for flue gas desulfurization, denitrification and dust removal as claimed in claim 1 or 6, wherein the distance from the inlet of the overflow pipe to the first partition plate is 15% -25% of the height of the air suction layer.
8. The integrated device for desulfurization, denitrification and dedusting of flue gas according to claim 1, wherein the spray layer of the desulfurization and denitrification tower is cylindrical, the third partition plate is in the shape of a vertical cylindrical barrel, and the spray layer is divided into a first annular spray chamber and a second cylindrical spray chamber which are sealed and isolated from each other by the cylindrical barrel-shaped third partition plate in the vertical direction.
9. The integrated device for flue gas desulfurization, denitrification and dust removal as claimed in claim 1, wherein a plurality of smoke inlet pipes vertically extending downwards into the air suction layer are uniformly arranged on the first partition plate corresponding to the first spray chamber, and the diameter of the smoke inlet pipe outlet is 0.5-1.5 cm.
10. The integrated device for desulfurization, denitrification and dedusting of flue gas as claimed in claim 1, wherein the integrated device for desulfurization, denitrification and dedusting of flue gas further comprises a standby liquid storage tank, the standby liquid storage tank is the same as the liquid storage tank, the bottom of the air suction layer is communicated with a liquid discharge pipe, and a valve is arranged on the liquid discharge pipe.
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| CN201921568160.0U CN210993708U (en) | 2019-09-19 | 2019-09-19 | Flue gas desulfurization denitration dust removal integrated device |
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| CN201921568160.0U CN210993708U (en) | 2019-09-19 | 2019-09-19 | Flue gas desulfurization denitration dust removal integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538562A (en) * | 2019-09-19 | 2019-12-06 | 广东佳德环保科技有限公司 | Flue gas desulfurization denitration dust removal integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538562A (en) * | 2019-09-19 | 2019-12-06 | 广东佳德环保科技有限公司 | Flue gas desulfurization denitration dust removal integrated device |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An integrated device for flue gas desulfurization, denitration and dust removal Effective date of registration: 20210622 Granted publication date: 20200714 Pledgee: Guangdong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021440000206 |
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Date of cancellation: 20220623 Granted publication date: 20200714 Pledgee: Guangdong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021440000206 |
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Denomination of utility model: An integrated device for flue gas desulfurization, denitration and dust removal Effective date of registration: 20220628 Granted publication date: 20200714 Pledgee: Guangdong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2022440000146 |
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