CN210495757U - Cooling, dedusting and dewatering integrated tower - Google Patents
Cooling, dedusting and dewatering integrated tower Download PDFInfo
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- CN210495757U CN210495757U CN201922307892.0U CN201922307892U CN210495757U CN 210495757 U CN210495757 U CN 210495757U CN 201922307892 U CN201922307892 U CN 201922307892U CN 210495757 U CN210495757 U CN 210495757U
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Abstract
The utility model discloses a cooling, dedusting and dewatering integrated tower, which comprises a tower body, wherein the side wall of the bottom of the tower body is provided with an air inlet, the top of the tower body is provided with an air outlet, and the tower body is divided into a washing cooling section, an agglomeration section and a dewatering section which are connected in sequence from bottom to top; the washing cooling section is divided into an upper part and a lower part, the lower part is provided with a single-medium spray gun, and the upper part is provided with a double-medium spray gun; the agglomeration section is provided with a sound wave generator; the dewatering section is provided with a rotational flow dehydrator for collecting water mist and water drops and a collecting pipe for discharging water collected by the rotational flow dehydrator out of the tower body. The device is formed by upgrading and transforming a raw gas cooler, successfully removes fine particles in the flue gas by three steps of temperature reduction, dust removal and dehydration and by utilizing the sound wave agglomeration technology, so that the emission concentration of the flue gas can reachTo less than or equal to 10mg/Nm3The problem that the emission concentration of the flue gas reaches the ultralow emission standard by applying a converter LT dry dedusting process system can be effectively solved.
Description
Technical Field
The utility model relates to a flue gas dust removal technical field, concretely relates to integrative tower of cooling dust removal dehydration.
Background
The existing converter gas LT dry dedusting adopts an electrostatic deduster scheme, and because an LT dry purification system has the advantages of water saving, electricity saving, small system resistance and small occupied area, the LT dry purification system is developed rapidly, but the LT dry dedusting process is difficult to remove fine particles in the flue gas and to meet the ultra-low emission requirement. With the increasing strictness of emission standards, systematic upgrading and modification are necessary.
In view of "LT" dry purification system's advantage, through constantly researching, discussing to through demonstrating repeatedly, with the help of the position of original coal gas cooler, the current spatial arrangement of make full use of, the at utmost is used up, reduces and reforms transform the cost, shortens to reform transform the cycle, designs the utility model discloses that really possesses practical value eventually.
SUMMERY OF THE UTILITY MODEL
The utility model aims at upgrading and transforming the existing converter flue gas LT dry dedusting system to ensure that the flue gas emission concentration is less than or equal to 10mg/Nm3And meets the requirement of ultralow emission of flue gas.
In order to realize the aim, the utility model provides a cooling, dedusting and dewatering integrated tower, which comprises a tower body, wherein the bottom of the tower body is provided with an air inlet, the top of the tower body is provided with an air outlet, and the tower body is divided into a washing cooling section, an agglomeration section and a dewatering section which are connected in sequence from bottom to top;
the washing cooling section is divided into an upper part and a lower part, the lower part is provided with a single-medium spray gun, and the upper part is provided with a double-medium spray gun;
the dewatering section is provided with a rotational flow dehydrator for collecting water mist and water drops and a collecting pipe for discharging water collected by the rotational flow dehydrator out of the tower body.
The single-medium spray gun refers to a spray gun which sprays liquid in a single type, and the single medium is water generally.
The double-medium spray gun is an aerial fog spray gun, the used gas medium is nitrogen, and the liquid medium is water.
Above-mentioned integrative tower, flue gas are gone into from top to bottom, and when the flue gas entered into the washing cooling zone, single medium spray gun and the tiny liquid drop after the double-medium spray gun blowout atomizing are full of whole washing cooling zone, and the rapid vaporization of fully contacting with the flue gas utilizes the latent heat of vaporization principle, makes the flue gas rapid cooling who gets into the inside of tower body to further remove dust.
By utilizing the principle of dust wetting and collision, the dust is fully wetted and then collided to form large dust-containing water drops in the process of continuing moving in the tower body. The large dust-containing water drops can settle by self gravity, and coarse dust removal is realized. The agglomeration section utilizes a sound wave generator to emit sound waves, so that fine particles in the flue gas collide and grow up, the number concentration of the particles is reduced, the average particle size is increased, and the particles are easy to capture. The dewatering section utilizes a cyclone dehydrator to collect water mist drops, and the collected water is discharged through a collecting pipe, so that fine particles in the flue gas are discharged, and the flue gas discharge concentration is less than or equal to 10mg/Nm3。
Optionally or preferably, in the cooling, dedusting and dewatering integrated tower, a drain pipe is arranged below an air inlet at the bottom of the tower body, and a drain water seal structure is arranged in the drain pipe. When the flue gas passes through the washing and cooling section, a part of large dust-containing liquid drops in the gas settle by the self gravity, enter the drain pipe and then enter the drain water seal to be discharged.
Optionally or preferably, in the cooling, dedusting and dewatering integrated tower, a sound insulation device is arranged outside the agglomeration section. The sound insulation device can reduce the sound which is transmitted outwards to form standard-exceeding noise.
Optionally or preferably, in the cooling, dedusting and dewatering integrated tower, the water supply structure of the double-medium nozzle of the washing and cooling section is a water distribution ring pipe.
Optionally or preferably, in the cooling, dedusting and dewatering integrated tower, the water distribution ring pipe is of an annular tubular structure, and is provided with a water inlet and a plurality of water outlets uniformly arranged along the pipeline.
Optionally or preferably, in the cooling, dedusting and dewatering integrated tower, a sound wave generator is arranged between the air inlet and the washing and cooling section.
Optionally or preferably, in the cooling, dedusting and dewatering integrated tower, the air inlet is of an inclined tubular structure with a long upper part and a short lower part, and the long end of the air inlet extends to the position of a middle shaft in the inner diameter of the tower body.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an integrative tower of cooling dust removal dehydration is reformed transform by former coal gas cooler upgrading and is formed, through cooling, dust removal, dehydration three steps, utilizes the sound wave reunion technique, and tiny granule in the successful desorption flue gas makes flue gas emission concentration can reach and is less than or equal to 10mg Nm3And the problem that the emission concentration of the flue gas reaches the ultralow emission standard by applying a converter LT dry dedusting process system can be effectively solved.
Drawings
Fig. 1 is a schematic sectional structure view of an embodiment of a cooling, dedusting and dewatering integrated tower.
In the figure:
1. the device comprises a washing and cooling section 2, an agglomeration section 3, a dehydration section 4, an air inlet 5, an air outlet 6, a single-medium spray gun 7, a double-medium spray gun 8, a sound wave generator 9, a rotational flow dehydrator 10, a collecting pipe 11, a water distribution ring pipe 12, a water drainage seal 13 and a sound insulation device.
Detailed Description
The technical solutions of the present invention will be explained and illustrated in detail with reference to specific embodiments so that those skilled in the art can better understand the present invention and implement the present invention.
Please refer to fig. 1, which is a schematic diagram of a longitudinal section structure of an embodiment of a cooling, dedusting and dewatering integrated tower, the cooling, dedusting and dewatering integrated tower includes a cylindrical tower body with two gradually-reduced ends, an air outlet 5 is disposed at the top of the tower body, an air inlet 4 is disposed at the bottom of the tower body, and the air inlet 4 is communicated with a flue gas feeding pipe. The air inlet 4 is specially designed and is of an inclined tubular structure with a long upper part and a short lower part, the long end of the air inlet 4 extends to the middle shaft position of the inner diameter of the tower body, the whole body is provided with an inclined opening and faces the lower part of the tower body, and when air flows enter, the air flows are reversed from bottom to top, so that the air flows are uniformly distributed. And a sound wave generator 8 is arranged between the air inlet 4 and the washing and cooling section 1.
The tower body is divided into a washing cooling section 1, an agglomeration section 2 and a dehydration section 3 which are connected in sequence from bottom to top. Wherein, the washing cooling section is divided into an upper part and a lower part, the lower part is provided with a single medium spray gun 6, and the upper part is provided with a double medium spray gun 7; the double-medium spray gun 7 adopts a water distribution ring pipe 11 which is arranged annularly for water supply. The water distribution ring pipe is of an annular tubular structure and is provided with a water inlet and a plurality of water outlets which are uniformly arranged along the pipeline. The water distribution ring pipe has larger ring diameter and slow flow rate, and plays a role in storing and distributing water. Through accurate calculation and design of water supply, the water distribution ring pipe 11 is ensured to function as a distributor.
The sound wave generator 8 is arranged below the washing and cooling section 1, but the sound wave generator can adjust the intensity of a sound field in the agglomeration section 2, and can also automatically control the opening and closing of a nitrogen valve according to the production process, and when blowing is not performed, nitrogen is closed, so that the effect of saving nitrogen is achieved, and the purpose of saving energy is achieved. In order to prevent sound from being transmitted outwards to form excessive noise, a sound insulation device 13 is further arranged outside the agglomeration section 2. The sound insulation device 13 is a sound absorption layer and is wrapped on the outer side of the tower body agglomeration section 2.
The dewatering section 3 is provided with a rotational flow dehydrator 9 for collecting water mist and water drops, and a collecting pipe for discharging water collected by the rotational flow dehydrator 9 out of the tower body. The cyclone dehydrator 9 is a centrifugal dehydrator, and when air current mixed with water drops enters a blade of the cyclone dehydrator, fine liquid drops are collided and accumulated on the blade to form large-particle water drops, and the water drops are thrown to the inner wall of the dehydrator to flow down along the blade direction under the driving of the air current, and meanwhile, part of the water drops carried in the air are separated due to the rotation of the air current. The water flowing down along the inner wall of the cyclone dehydrator 9 is collected and discharged through a collecting pipe 10.
A drain pipe is arranged below the air inlet 4 at the bottom of the tower body, and a drain water seal 12 structure is arranged in the drain pipe.
The working process is as follows:
and the flue gas which does not reach the ultralow emission standard after electrostatic dust removal enters the bottom air inlet 4 of the cooling, dust removing and dewatering integrated tower through a pipeline by a fan, turns over and rises, and the airflow is uniformly distributed. As the drainage water seal 12 is arranged on the drainage pipe at the bottom of the tower body, and the flue gas can flow from bottom to top along the tower body under the pressure and the heat effect, the flow speed is about 3-5m/s under the general condition. When passing through the washing and cooling section 1, the single-medium spray gun 6 and the double-medium spray gun 7 spray liquid drops to fill the whole washing and cooling section 1, and the liquid drops are fully contacted with the flue gas to cool the flue gas and further remove dust. The single medium spray gun 6 has a simple structure, but the atomized particles are larger and are generally more than 400 particles, and the particles sprayed by the double medium spray gun 7 are finer and are generally about 100 particles. The lower part is washed, dedusted and cooled by spraying water through the single-medium spray gun 6, fine particles sprayed out from the double-medium spray gun 7 are used as seed liquid drops for sound wave agglomeration at the upper part, the same water volume is larger, the liquid drops are more, and the fine dust particles are easy to collide in the sound wave agglomeration process, so that the purposes of capturing, agglomerating and removing are achieved.
In the washing and cooling section 1, by utilizing the principle of dust wetting and collision, the dust is fully wetted and then collides in the continuous movement process in the tower body to form large dust-containing water drops. After the flow velocity of a part of large dust-containing liquid drops in the gas is slowed down, the dust-containing liquid drops settle by the self gravity, enter a drainage pipe at the bottom of the washing tower and enter a drainage water seal 12 to be discharged, the gas flow continuously flows upwards, and the dust-containing liquid drops are removed by utilizing the inertia principle, so that the aim of coarse dust removal is fulfilled.
The flue gas after coarse dust removal utilizes the sound wave agglomeration principle in the agglomeration section 2 to lead fine particles in the flue gas to collide and agglomerate to form large particles, thereby reducing the number concentration of the particles, increasing the average particle size and being easy to be caught.
The dewatering section 3 utilizes the cyclone dehydrator 9 to collect water mist and water drops, and discharges the collected water through the collecting pipe 10, thereby discharging fine particles in the flue gas and ensuring that the emission concentration of the flue gas is less than or equal to 10mg/Nm3And the requirement of ultra-low emission is met.
The inventive concept is explained in detail herein using specific examples, which are given only to aid in understanding the core concepts of the invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The cooling, dedusting and dewatering integrated tower comprises a tower body, wherein the side wall of the bottom of the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet;
the washing cooling section is divided into an upper part and a lower part, the lower part is provided with a single-medium spray gun, and the upper part is provided with a double-medium spray gun;
the dewatering section is provided with a rotational flow dehydrator for collecting water mist and water drops and a collecting pipe for discharging water collected by the rotational flow dehydrator out of the tower body.
2. The tower of claim 1, wherein a drain pipe is arranged below the air inlet at the bottom of the tower body, and a drain water seal structure is arranged in the drain pipe.
3. The tower of claim 1, wherein a sound insulation device is arranged outside the agglomeration section.
4. The tower of claim 1, wherein the water supply structure of the dual-medium nozzles of the washing and cooling section is a water distribution loop.
5. The tower of claim 4, wherein the water distribution ring pipe is an annular tubular structure having a water inlet and a plurality of water outlets arranged uniformly along the pipe.
6. The tower of claim 1, wherein a sound generator is disposed between the air inlet and the washing and cooling section.
7. The tower of claim 1, wherein the air inlet is an inclined tubular structure with a long upper end and a short lower end, and the long end of the air inlet extends to the central axis of the inner diameter of the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922307892.0U CN210495757U (en) | 2019-12-19 | 2019-12-19 | Cooling, dedusting and dewatering integrated tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922307892.0U CN210495757U (en) | 2019-12-19 | 2019-12-19 | Cooling, dedusting and dewatering integrated tower |
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| CN210495757U true CN210495757U (en) | 2020-05-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219489A (en) * | 2020-09-23 | 2021-01-15 | 六安科科达尔生物科技有限公司 | Seed humidifying equipment for agricultural technology research and development |
| CN117264676A (en) * | 2023-10-07 | 2023-12-22 | 江苏万兴石油装备有限公司 | Associated gas treatment device containing carbon dioxide |
-
2019
- 2019-12-19 CN CN201922307892.0U patent/CN210495757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219489A (en) * | 2020-09-23 | 2021-01-15 | 六安科科达尔生物科技有限公司 | Seed humidifying equipment for agricultural technology research and development |
| CN117264676A (en) * | 2023-10-07 | 2023-12-22 | 江苏万兴石油装备有限公司 | Associated gas treatment device containing carbon dioxide |
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