CN214715275U - Waste gas sprays cooling dust pelletizing system - Google Patents
Waste gas sprays cooling dust pelletizing system Download PDFInfo
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- CN214715275U CN214715275U CN202023244733.XU CN202023244733U CN214715275U CN 214715275 U CN214715275 U CN 214715275U CN 202023244733 U CN202023244733 U CN 202023244733U CN 214715275 U CN214715275 U CN 214715275U
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Abstract
The utility model discloses a waste gas sprays cooling dust pelletizing system relates to waste gas treatment technical field, and it is not obvious to waste gas cooling effect to aim at solving current waste gas spray column, and after the circulation of a time sprayed, the temperature can be more and more high, finally can not reach the problem of cooling effect, and its technical scheme main points are: the device comprises a spray tower and a sedimentation tank, wherein the spray tower is provided with a spray layer, the sedimentation tank is communicated with the bottom of the spray tower, and the sedimentation tank is communicated with the spray layer through a water outlet pipe provided with a booster pump; the water circulation system is characterized by further comprising a cooling tower and a heat exchanger, wherein the heat exchanger is arranged on the water outlet pipe, and the cooling tower and the water circulation pipe are connected through the heat exchanger for heat exchange. The utility model discloses can effectively detach the harmful gas in the waste gas, can also reach the effect of dust removal, simultaneously, can further reduce exhaust gas temperature, recovery water, reach the effect of white water conservation that disappears.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, more specifically say, it relates to a waste gas sprays cooling dust pelletizing system.
Background
The waste gas spray tower is a common device in the waste gas treatment process and mainly comprises a packing layer, a spray layer, a demister, a sedimentation tank, a circulating water pump and other components, wherein waste gas enters the spray tower, enters the packing layer, the spray layer and the demister and is discharged through a flue. Waste gas purifies through the packing layer earlier, and simultaneously, the upper spray layer is continuous to spray water smoke down, makes waste gas and water smoke fully contact, reduces the temperature of flue gas on the one hand, and on the other hand gets rid of the dust in the waste gas. The water mist is collected at the bottom in the spray tower under the action of gravity and then enters a sedimentation tank, solid particles can be precipitated in the sedimentation tank, and water can be recycled after the sedimentation tank is manually cleaned regularly.
However, the existing waste gas spray tower has an unobvious waste gas cooling effect, and after the waste gas spray tower circularly sprays waste gas once and again, the water temperature is higher and higher, and the cooling effect cannot be finally achieved.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at just providing a waste gas sprays cooling dust pelletizing system in order to solve foretell problem, not only can effectively detach the harmful gas in the waste gas, can also reach the effect of dust removal, simultaneously, can further reduce exhaust gas temperature, recovery water, reach the effect of white water conservation that disappears.
The above technical purpose of the present invention can be achieved by the following technical solutions: a waste gas spraying, cooling and dedusting system comprises a spray tower and a sedimentation tank, wherein the spray tower is provided with a spray layer, the sedimentation tank is communicated with the bottom of the spray tower, and the sedimentation tank is communicated with the spray layer through a water outlet pipe provided with a booster pump; the water circulation system is characterized by further comprising a cooling tower and a heat exchanger, wherein the heat exchanger is arranged on the water outlet pipe, and the cooling tower and the water circulation pipe are connected through the heat exchanger for heat exchange.
Preferably, the method comprises the following steps: the cooling tower is connected with the heat exchanger through a circulating pipeline, and the circulating pipeline is provided with a circulating pump.
Preferably, the method comprises the following steps: the booster pump is arranged on the water outlet pipe and corresponds to the position between the sedimentation tank and the heat exchanger.
Preferably, the method comprises the following steps: the water filtering device is characterized in that an inward inclined water baffle is arranged on the inner wall of the upper part of the sedimentation tank, a plurality of water filtering notches are formed in the upper end of the water baffle, a water filtering space is formed between the water baffle and the inner wall of the sedimentation tank, and the water outlet pipe is communicated with the water filtering space.
Preferably, the method comprises the following steps: a filter screen is arranged in the sedimentation tank, the height of the filter screen is lower than the water filtering notch, and the filter screen is connected to the lower part of the water baffle.
Preferably, the method comprises the following steps: the spraying layer comprises a plurality of atomizing nozzles.
Preferably, the method comprises the following steps: the sedimentation tank is connected with a wastewater treatment system through a pipeline.
Preferably, the method comprises the following steps: the lower part of the spray tower is provided with an inlet flue, and the upper part of the spray tower is provided with an outlet flue.
Preferably, the method comprises the following steps: the spray tower is characterized in that a packing layer and a demister are further arranged inside the spray tower, the packing layer is located at the lower portion of the spray layer, and the demister is located at the upper portion of the spray layer.
To sum up, the utility model discloses following beneficial effect has:
the waste gas enters the spray tower from bottom to top, can be sprayed, cooled and dedusted, and is circularly sprayed and cooled through the sedimentation tank and the circular spraying structure; after the water collected at the bottom of the spray tower firstly enters a sedimentation tank to precipitate solid particles, one part of water enters a heat exchanger through a circulating water pump to be cooled and then is sent to the spray layer for recycling, and the other part of water is sent to a wastewater treatment system for centralized treatment. The heat exchanger is arranged on a water pipeline between the circulating water pump and the spraying layer, and the cold side of the heat exchanger is connected with an inlet and outlet water pipeline of the mechanical cooling tower. The heat exchanger is used for cooling the hot water collected after spraying by using the cold water at the outlet of the mechanical cooling tower, so that the water in the spraying layer is always kept in a low-temperature state, and the effect of improving the cooling of the waste gas is achieved.
Drawings
FIG. 1 is a schematic structural view of a waste gas spraying, cooling and dedusting system of the present invention;
fig. 2 is a schematic view of a part of the structure inside the sedimentation tank of the present invention.
Reference numerals: 1. an inlet flue; 2. a spray tower; 3. a filler layer; 4. a spray layer; 5. a demister; 6. An outlet flue; 7. a heat exchanger; 8. a sedimentation tank; 9. a booster pump; 10. a circulation pump; 11. a cooling tower; 12. A wastewater treatment system; 13. adjusting a valve; 14. a water outlet pipe; 15. a water baffle; 16. a water filtering notch; 17. A filter screen; 18. a water filtering space.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a waste gas spraying, cooling and dedusting system includes a spray tower 2, a sedimentation tank 8, a heat exchanger 7 and a cooling tower 11, wherein a packing layer 3, a spraying layer 4 and a demister 5 are sequentially arranged in the spray tower 2 from bottom to top; the inlet flue 1 of spray tower 2 is located the lower extreme, and the outlet flue 6 is located the upper end for waste gas gets into spray tower 2 from inlet flue 1 from bottom to top, purifies through packing layer 3 earlier, again with spray layer 4 in the middle of the water smoke that the atomizing nozzle sprayed fully contact, get rid of the dust when reducing the smoke temperature, get into outlet flue 6 after the water droplet is detached through defroster 5 at last, discharge sprays the waste gas that removes dust and cool down.
The temperature rises after the water that sprays layer 4 sprays contacts with waste gas, and the reduction of waste gas temperature, the partial comdenstion water of appearing contains solid particle in the water simultaneously, and it collects in the 2 bottoms of spray column, and sedimentation tank 8 and spray column 2's bottom UNICOM, and the water of collecting enters into sedimentation tank 8 and deposits solid particle.
The sedimentation tank 8 is communicated with the spraying layer 4 through a water outlet pipe 14, a booster pump 9 is arranged on the water outlet pipe 14 corresponding to the position between the sedimentation tank 8 and the heat exchanger 7,
the booster pump 9 on the water outlet pipe 14 conveys water to spraying and the like for spraying, so that the circulating spraying and cooling are realized; spray a plurality of atomizing nozzle of installation in the middle of the layer 4, atomizing nozzle can spray out the water droplet of relative fine and close to increase the contact surface between water droplet and the waste gas, improve the effect of spraying cooling and dust removal, do not do specifically to atomizing nozzle's specific structure and injectd, can normally spray can.
In the circulating spray cooling process, water is cooled through a cooling tower 11 and a heat exchanger 7, the heat exchanger 7 is arranged on a water outlet pipe 14, the cooling tower 11 is connected with a circulating water pipe through the heat exchanger 7 for heat exchange, the cooling tower 11 is connected with the heat exchanger 7 through a circulating pipeline, and a circulating pump 10 is arranged on the circulating pipeline to provide circulating power of a refrigerant; the water in the water outlet pipe 14 passes through the hot side, and the water in the cooling tower 11 passes through the cold side, so that the sprayed water is cooled, and the efficiency of cooling the waste gas by spraying is improved.
The inner wall of the upper part of the sedimentation tank 8 is provided with a water baffle 15 which inclines inwards and upwards, the upper end of the water baffle 15 is provided with a plurality of water filtering gaps 16, a water filtering space 18 is formed between the water baffle 15 and the inner wall of the sedimentation tank 8, a water outlet pipe 14 is communicated with the water filtering space 18, a filter screen 17 is arranged in the sedimentation tank 8, the height of the filter screen 17 is lower than that of the water filtering gaps 16, and the filter screen 17 is connected to the lower part of the water baffle 15 and can preliminarily filter water entering the sedimentation tank 8 from the spray tower 2; and then the water output from the water filtering notch 16 is cleaned and filtered to a certain degree by the obstruction of the water baffle 15, so that the cleanness of the water flowing out of the sedimentation tank 8 is improved.
A pipeline is led out from the sedimentation tank 8 and is connected with a wastewater treatment system 12, and redundant water in the sedimentation tank 8 is discharged and enters the wastewater treatment system 12 for treatment; and a regulating valve 13 is installed on the pipe to control the amount of wastewater discharged.
Waste gas enters a spray tower 2 from the inlet flue 1 from bottom to top, is purified by a filler layer 3, is fully contacted with water mist sprayed by atomizing nozzles in a spray layer 4 to reduce the temperature of the smoke and remove dust at the same time, and finally enters an outlet flue 6 after water drops are removed by a demister 5 to discharge the waste gas after dust removal and temperature reduction by spraying;
the water after spraying is collected at the bottom of the spray tower 2 and then enters the sedimentation tank 8 for sedimentation, particulate matters in the water are separated through sedimentation, and partial condensed water is separated out due to the reduction of the temperature of the waste gas, so that the water absorbed at the bottom of the spray tower 2 is more than the water required by the spray layer 4. One part of clarified water enters the heat exchanger 7 through the pipeline booster pump 9 to be cooled and then is sent into the spraying layer 4 for recycling, the other part of clarified water is sent into the wastewater treatment system 12 through the pipeline to be treated in a centralized way, and the pipeline is provided with the regulating valve 13 to control the water outlet parameters.
The heat exchanger 7 is arranged on a water pipeline between the pipeline booster pump 9 and the spraying layer 4, and the cold side of the heat exchanger 7 is connected with an inlet water pipeline and an outlet water pipeline of the cooling tower 11. The spray collecting liquid exchanges heat with cooling water of the cooling tower 11 through the heat exchanger 7 to form lower-temperature spray water, so that the water in the spray layer 4 is always kept in a low-temperature state, and the effect of reducing the temperature of waste gas is achieved.
After entering the sedimentation tank 8, the sprayed water is adsorbed and filtered by the filter screen 17 in the sedimentation tank 8, so that the water in the sedimentation tank 8 is preliminarily cleaned, and the filter screen 17 can be cleaned and replaced periodically; go out the water in-process, breakwater 15 carries out the separation to water, water only can follow in the breach on breakwater 15 and gets into in the middle of the opening of straining water space 18 upper end and strain the water space 18, carry out the separation to the particulate matter that upwards rises down, make the water that flows in the middle of straining water space 18 cleaner, thereby can make the water that sprays cleaner, avoid the particulate matter too much and produce the jam to parts such as pipeline, heat dissipation chamber and water pump, avoid influencing spraying system's normal work, thereby improve equipment's operational reliability.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The waste gas spraying, cooling and dedusting system is characterized by comprising a spraying tower (2) provided with a spraying layer (4) and a sedimentation tank (8), wherein the sedimentation tank (8) is communicated with the bottom of the spraying tower (2), and the sedimentation tank (8) is communicated with the spraying layer (4) through a water outlet pipe (14) provided with a booster pump (9); the water circulation system is characterized by further comprising a cooling tower (11) and a heat exchanger (7), wherein the heat exchanger (7) is arranged on the water outlet pipe (14), and the cooling tower (11) and the water circulation pipe are connected through the heat exchanger (7) for heat exchange.
2. The exhaust gas spraying, temperature reducing and dust removing system according to claim 1, wherein the cooling tower (11) is connected with the heat exchanger (7) through a circulating pipeline, and a circulating pump (10) is arranged on the circulating pipeline.
3. An exhaust gas spray cooling and dust removing system as claimed in claim 2, wherein the booster pump (9) is arranged on the outlet pipe (14) at a position corresponding to the position between the sedimentation tank (8) and the heat exchanger (7).
4. An exhaust gas spraying, cooling and dedusting system according to claim 1, wherein a water baffle (15) inclined inwards and upwards is arranged on the inner wall of the upper portion of the sedimentation tank (8), a plurality of water filtering notches (16) are arranged at the upper end of the water baffle (15), a water filtering space (18) is formed between the water baffle (15) and the inner wall of the sedimentation tank (8), and the water outlet pipe (14) is communicated with the water filtering space (18).
5. The exhaust gas spraying, cooling and dedusting system according to claim 4, characterized in that a filter screen (17) is arranged in the sedimentation tank (8), the height of the filter screen (17) is lower than the water filtering gap (16), and the filter screen (17) is connected to the lower part of the water baffle (15).
6. An exhaust gas spray cooling and dust removal system according to claim 1, wherein the spray layer (4) comprises a plurality of atomizing nozzles.
7. An exhaust gas spray cooling and dust removal system as claimed in claim 1, wherein said sedimentation tank (8) is connected to a wastewater treatment system (12) by a pipe.
8. A waste gas spraying, cooling and dedusting system as claimed in any one of claims 1 to 7, characterized in that the lower part of the spray tower (2) is provided with an inlet flue (1), and the upper part of the spray tower (2) is provided with an outlet flue (6).
9. The exhaust gas spraying, cooling and dedusting system according to claim 8, wherein a packing layer (3) and a demister (5) are further arranged inside the spraying tower (2), the packing layer (3) is located at the lower part of the spraying layer (4), and the demister (5) is located at the upper part of the spraying layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023244733.XU CN214715275U (en) | 2020-12-29 | 2020-12-29 | Waste gas sprays cooling dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023244733.XU CN214715275U (en) | 2020-12-29 | 2020-12-29 | Waste gas sprays cooling dust pelletizing system |
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| Publication Number | Publication Date |
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| CN214715275U true CN214715275U (en) | 2021-11-16 |
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| CN202023244733.XU Active CN214715275U (en) | 2020-12-29 | 2020-12-29 | Waste gas sprays cooling dust pelletizing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674159A (en) * | 2022-03-07 | 2022-06-28 | 河南新北方净化设备安装有限公司 | Device treatment method for recycling and purifying waste gas energy of annealing furnace |
| CN115228228A (en) * | 2022-06-24 | 2022-10-25 | 江水 | Circulating industrial waste gas treatment process |
-
2020
- 2020-12-29 CN CN202023244733.XU patent/CN214715275U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674159A (en) * | 2022-03-07 | 2022-06-28 | 河南新北方净化设备安装有限公司 | Device treatment method for recycling and purifying waste gas energy of annealing furnace |
| CN115228228A (en) * | 2022-06-24 | 2022-10-25 | 江水 | Circulating industrial waste gas treatment process |
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