CN215138226U - Flue gas cooling and discharging system - Google Patents
Flue gas cooling and discharging system Download PDFInfo
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- CN215138226U CN215138226U CN202120625759.4U CN202120625759U CN215138226U CN 215138226 U CN215138226 U CN 215138226U CN 202120625759 U CN202120625759 U CN 202120625759U CN 215138226 U CN215138226 U CN 215138226U
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Abstract
The utility model discloses a flue gas cooling and discharging system, which comprises a plurality of branch pipes which are respectively used for being connected with flue gas ports of a roasting furnace, a main pipe connected with the branch pipes, a connecting pipe connected with the main pipe, a cooling component arranged on the connecting pipe, an asphalt flue gas capturing tower connected at the tail end of the connecting pipe and a washing tower connected with the outlet end of the asphalt flue gas capturing tower; the connecting pipe comprises a first connecting pipe and a second connecting pipe; the cooling assembly comprises a cooling tank, a centrifugal pump, a cooler and a plurality of cooling coils, wherein the cooling tank is provided with an air inlet and an air outlet, the plurality of cooling coils are arranged in the cooling tank, the cooling coils are of a vortex line structure, and the plurality of cooling coils are connected end to end in the cooling tank to form a cooling structure. The utility model can cool the flue gas in actual use, so that the asphalt particles in the flue gas are easier to be captured, and the effect is better; and simultaneously, the utility model discloses can also purify the flue gas once more, make the flue gas reach the standard of emission.
Description
Technical Field
The utility model relates to a carbon goods production flue gas treatment facility technical field, concretely relates to flue gas cooling discharge system.
Background
In the carbon industry, a large amount of asphalt smoke and dust are volatilized and emitted in the asphalt melting, kneading, molding, roasting and other processes. Roasting is an important process in the production process of carbon products. In the roasting process, coke powder is used as a protective medium in a roasting furnace, and the roasting furnace is heated to the maximum roasting temperature of 1200-1300 ℃ at a certain heating rate under the condition of air isolation according to the technical requirements of products. Meanwhile, the temperature of the flue gas is extremely unstable and is usually between 80 and 300 ℃. The roasting fuel adopts natural gas, and the roasting furnace is of a ring-type roasting furnace structure. And (3) loading the green blocks subjected to pressure forming into an 18-chamber roasting furnace, filling coke powder serving as a protective medium between the green blocks, and roasting at the temperature of 1200-1300 ℃ for a certain time to obtain the carbon product. Because the main raw materials of the green compact are coke powder and asphalt, a large amount of asphalt smoke and smoke can escape in the roasting process.
And (3) pollutant sources in the roasting process: the roasting furnace adopts natural gas as fuel, and in the roasting process, besides smoke dust and SO generated by combustion of the natural gas, asphalt in the carbon green compact blocks can emit a large amount of asphalt smoke due to high-temperature pyrolysis.
In the prior art, in order to treat particles in flue gas, the flue gas directly passes through an electric capturing tower, but the temperature of the flue gas is high, and particularly when a pipeline is short, the capturing effect of the electric capturing tower is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a flue gas cooling and discharging system which can cool the flue gas in the actual use, so that the asphalt particles in the flue gas are easier to capture, and the effect is better; and simultaneously, the utility model discloses can also purify the flue gas once more, make the flue gas reach the standard of emission.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a flue gas cooling and discharging system comprises a plurality of branch pipes, a main pipe, a connecting pipe, a cooling assembly, an asphalt flue gas capturing tower and a washing tower, wherein the branch pipes are respectively used for being connected with flue gas ports of a roasting furnace;
the connecting pipe comprises a first connecting pipe and a second connecting pipe;
the cooling assembly comprises a cooling tank, a centrifugal pump, a cooler and a plurality of cooling coils, wherein an air inlet and an air outlet are formed in the cooling tank, the plurality of cooling coils are arranged in the cooling tank, the cooling coils are of a vortex line structure, and the plurality of cooling coils are connected end to end in the cooling tank to form a cooling structure; the cooling coils at the head end and the tail end of the cooling structure are respectively connected with the inlet and the outlet of the cooler through pipelines, and the centrifugal pump is arranged on the pipelines;
one end of the first connecting pipe is connected with the main pipe, the other end of the first connecting pipe is connected with the air inlet of the cooling tank, one end of the second connecting pipe is connected with the air outlet of the cooling tank, and the other end of the second connecting pipe is connected with the asphalt flue gas capturing tower;
the first connecting pipe is communicated with the second connecting pipe through a circulating pipe, a first draught fan is arranged on the circulating pipe, and a second draught fan is arranged between the asphalt flue gas capturing tower and the washing tower.
Further optimize, air inlet and gas outlet are connected with flange on the cooling jar, and air inlet and gas outlet pass through flange and are connected with first connecting pipe and second connecting pipe.
Wherein, a first valve is arranged on the branch pipe.
Further preferably, the circulating pipe is provided with a second valve.
The asphalt flue gas capturing tower comprises a first tower body, a flue gas uniform distributor and a plurality of electric capturing plates, wherein the flue gas uniform distributor and the plurality of electric capturing plates are arranged in the first tower body; the inlet is connected with a second connecting pipe.
The washing tower comprises a second tower body, a first partition plate, a second partition plate, a water tank and a water pump, through holes are formed in the first partition plate and the second partition plate, the first partition plate and the second partition plate are fixedly installed in the second tower body, a plurality of transverse pipes are arranged above the first partition plate and the second partition plate, a plurality of spray heads are arranged on each transverse pipe, the transverse pipes are connected with the water pump through water pipes, and the water pump is located in the water tank; the first partition plate and the second partition plate are provided with fillers, the fillers form a filler layer, the water tank is arranged at the bottom of the second tower body, and the water tank is provided with a filter screen.
Wherein, the filler is Bohr ball.
Wherein, the side of the tower body is provided with a manhole.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model collects the flue gas generated by the roasting furnace into the main pipe through the branch pipe, then cools the flue gas through the arranged cooling assembly, the flue gas with the reduced temperature is introduced into the asphalt flue gas capturing tower to capture asphalt particles in the flue gas, the recovery of asphalt in the flue gas can be realized at the asphalt flue gas capturing tower, and meanwhile, the flue gas after being captured is introduced into the washing tower to be washed, and the flue gas is purified again; therefore, the treatment effect on the flue gas can be improved, and the flue gas can reach the emission standard;
the cooling tank is provided with a cooling tank, a cooling tank is arranged in the cooling tank, a cooling coil is arranged in the cooling tank, and the cooling tank is connected with the cooling tank through a cooling fan; the cooling coil is in a vortex line structure, so that the contact area between the flue gas and the cooling coil is larger, the heat exchange effect is better, and the cooling efficiency of the flue gas is improved;
more importantly, the first connecting pipe is communicated with the second connecting pipe through a circulating pipe, a first fan is arranged on the circulating pipe, and a second induced draft fan is arranged between the asphalt flue gas capturing tower and the washing tower; therefore, the flue gas after electric capture can be mixed with the high-temperature flue gas in the first connecting pipe, the temperature of the flue gas in the first connecting pipe is reduced, and the purpose of primary cooling is realized; then carry out the secondary cooling when cooling the subassembly through to, the flue gas that the backward flow was come back can also be caught by pitch flue gas capturing tower once more, with the residual pitch content in the reduction flue gas.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the schematic diagram of the internal structure of the water washing tower of the present invention.
Fig. 3 is the structure schematic diagram of the cooling coil of the present invention.
Reference numerals: 1-roasting furnace, 2-branch pipe, 3-main pipe, 4-cooling component, 5-asphalt smoke capturing tower, 6-washing tower, 7-first connecting pipe, 8-second connecting pipe, 9-cooling tank, 10-centrifugal pump, 11-cooler, 12-cooling coil, 13-circulating pipe, 14-first fan, 15-connecting flange, 16-first valve, 17-second valve, 18-second induced draft fan, 19-first tower body, 20-smoke distributor, 21-electric capturing plate, 22-first outlet, 23-third valve, 24-second outlet, 25-second outlet, 26-first baffle, 27-second baffle, 28-water tank, 29-water pump, 30-transverse pipe, 31-spray head, 32-filler layer, 33-filter screen, 34-connecting pipe.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.
Example one
The utility model discloses a flue gas cooling and discharging system, which comprises a plurality of branch pipes 2 respectively used for being connected with a flue gas port of a roasting furnace 1, a main pipe 3 connected with the branch pipes 2, a connecting pipe 34 connected with the main pipe 3, a cooling component 4 arranged on the connecting pipe 34, an asphalt flue gas capturing tower 5 connected at the end of the connecting pipe 34 and a washing tower 6 connected with the outlet end of the asphalt flue gas capturing tower 5;
the connection pipe 34 includes a first connection pipe 7 and a second connection pipe 8;
the cooling assembly 4 comprises a cooling tank 9, a centrifugal pump 10, a cooler 11 and a plurality of cooling coils 12, wherein an air inlet and an air outlet are formed in the cooling tank 9, the plurality of cooling coils 12 are arranged in the cooling tank 9, the cooling coils 12 are of a vortex-shaped line structure, and the plurality of cooling coils 12 are connected end to end in the cooling tank 9 to form a cooling structure; the cooling coils 12 at the head end and the tail end of the cooling structure are respectively connected with the inlet and the outlet of the cooler 11 through pipelines, and the centrifugal pump 10 is arranged on the pipelines;
one end of a first connecting pipe 7 is connected with the main pipe 3, the other end of the first connecting pipe is connected with an air inlet of a cooling tank 9, one end of a second connecting pipe 8 is connected with an air outlet of the cooling tank 9, and the other end of the second connecting pipe is connected with the asphalt flue gas capturing tower 5;
the first connecting pipe 7 is communicated with the second connecting pipe 8 through a circulating pipe 13, a first draught fan 14 is arranged on the circulating pipe 13, and a second draught fan 18 is arranged between the asphalt flue gas capturing tower 5 and the water washing tower 6.
The utility model discloses a branch pipe 2 will bake the flue gas that burning furnace 1 produced and collect to being responsible for 3 in, then cool down the flue gas through the cooling subassembly 4 that sets up, the flue gas after the cooling lets in pitch flue gas catching tower 5 in to the pitch granule in the flue gas catches, can realize the recovery to pitch in the flue gas in pitch flue gas catching tower 5, simultaneously, the flue gas after catching lets in washing tower 6 and washes, purifies the flue gas once more; therefore, the treatment effect on the flue gas can be improved, and the flue gas can reach the emission standard;
the cooling system has the advantages that heat exchange can be carried out when flue gas flows through the cooling tank 9 through the arranged end-to-end spiral cooling coils 12, the medium in the cooling coils 12 flows under the action of the centrifugal pump 10, and the medium in the cooling coils 12 is rapidly cooled through the cooler 11, so that the purpose of heat exchange of the flue gas is achieved; the cooling coil 12 is in a vortex line structure, so that the contact area between the flue gas and the cooling coil 12 is larger, the heat exchange effect is better, and the cooling efficiency of the flue gas is improved;
more importantly, the first connecting pipe 7 is communicated with the second connecting pipe 8 through a circulating pipe 13, a first draught fan 14 is arranged on the circulating pipe 13, and a second draught fan 18 is arranged between the asphalt flue gas capturing tower 5 and the water washing tower 6; therefore, the flue gas after electric capture can be mixed with the high-temperature flue gas in the first connecting pipe 7, the temperature of the flue gas in the first connecting pipe 7 is reduced, and the purpose of primary cooling is realized; then the temperature is lowered for the second time when the flue gas flows through the temperature lowering component 4, and the returned flue gas can be captured by the asphalt flue gas capturing tower 5 again so as to reduce the content of residual asphalt in the flue gas.
Further optimization, the air inlet and the air outlet on the cooling tank 9 are connected with a connecting flange 15, and the air inlet and the air outlet are connected with the first connecting pipe 7 and the second connecting pipe 8 through the connecting flange 15; the connection is carried out through the connecting flange 15, and the disassembly and the assembly are more convenient.
Further preferably, a first valve 16 is arranged on the branch pipe 2; the on-off of the branch pipe 2 can be controlled by the first valve 16, and the first valve 16 can be closed when the roasting furnace 1 connected with the branch pipe 2 is not used.
Further preferably, a second valve 17 is arranged on the circulating pipe 13; the arrangement of the second valve 17 can prevent the high-temperature flue gas from directly entering the asphalt flue gas capturing tower 5 when the first fan stops working.
The asphalt flue gas capturing tower 5 comprises a first tower body 19, a flue gas uniform distributor 20 and a plurality of electric capturing plates 21, wherein the flue gas uniform distributor 20 and the plurality of electric capturing plates 21 are arranged in the first tower body 19, the flue gas uniform distributor 20 is positioned above the electric capturing plates 21, the upper end of the first tower body 19 is provided with an inlet, the lower end of the first tower body 19 is of a conical structure, the lower end of the first tower body 19 is provided with a first outlet 22, the first outlet 22 is provided with a third valve 23, the side surface of the lower end of the first tower body 19 is provided with a second outlet 24, and the second outlet 24 is connected with the washing tower 6; the inlet is connected to a second connecting pipe 8.
Flue gas entering the first tower body 19 is uniformly distributed through the flue gas uniform distributor 20, the speed of the flue gas can be reduced, asphalt particles in the flue gas are captured under the action of the electric capture plate 21, asphalt attached to the electric capture plate 21 is gathered to form paste, the paste is stored at the bottom of the first tower body 19 under the action of gravity, and the paste can flow out by opening the third valve 23.
It should be noted that the collected asphalt has poor fluidity, and in order to facilitate the outflow of the asphalt, a heating wire may be disposed at the bottom of the first tower 19, so that when the accumulated asphalt flows out, the asphalt is heated by the heating wire, thereby improving the fluidity.
The washing tower 6 comprises a second tower body 25, a first partition plate 26, a second partition plate 27, a water tank 28 and a water pump 29, through holes are formed in the first partition plate 26 and the second partition plate 27, the first partition plate 26 and the second partition plate 27 are fixedly installed in the second tower body 25, a plurality of transverse pipes 30 are arranged above the first partition plate 26 and the second partition plate 27, a plurality of spray heads 31 are arranged on each transverse pipe 30, the transverse pipes 30 are connected with the water pump 29 through the water pipes, and the water pump 29 is located in the water tank 28; the first partition plate 26 and the second partition plate 27 are provided with packing, the packing is formed into a packing layer 32, the water tank 28 is provided at the bottom of the second tower body 25, and the water tank 28 is provided with a filter screen 33.
Catch tower 5 through the pitch flue gas and retrieve a large amount of pitch in with the flue gas, then carry out the washing through washing tower 6 through the flue gas, can purify the flue gas once more, reduce particulate content in the flue gas, can make the flue gas reach the standard of emission, avoid its polluted environment.
Wherein the filler is Bohr balls; the formed packing layer 32 enlarges the gas-liquid contact surface, so that water is fully contacted with the flue gas, and the effect of capturing particulate matters in the flue gas is improved.
Further optimize, the tower body side is provided with the manhole. Through the setting, the filler is convenient for the staff to overhaul and replace at regular intervals.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.
Claims (8)
1. A flue gas cooling discharge system is characterized in that: the device comprises a plurality of branch pipes, a main pipe, a connecting pipe, a cooling assembly, an asphalt flue gas capturing tower and a washing tower, wherein the branch pipes are respectively used for being connected with flue gas ports of a roasting furnace;
the connecting pipe comprises a first connecting pipe and a second connecting pipe;
the cooling assembly comprises a cooling tank, a centrifugal pump, a cooler and a plurality of cooling coils, wherein an air inlet and an air outlet are formed in the cooling tank, the plurality of cooling coils are arranged in the cooling tank, the cooling coils are of a vortex line structure, and the plurality of cooling coils are connected end to end in the cooling tank to form a cooling structure; the cooling coils at the head end and the tail end of the cooling structure are respectively connected with the inlet and the outlet of the cooler through pipelines, and the centrifugal pump is arranged on the pipelines;
one end of the first connecting pipe is connected with the main pipe, the other end of the first connecting pipe is connected with the air inlet of the cooling tank, one end of the second connecting pipe is connected with the air outlet of the cooling tank, and the other end of the second connecting pipe is connected with the asphalt flue gas capturing tower;
the first connecting pipe is communicated with the second connecting pipe through a circulating pipe, a first draught fan is arranged on the circulating pipe, and a second draught fan is arranged between the asphalt flue gas capturing tower and the washing tower.
2. The flue gas cooling and discharging system of claim 1, wherein: the air inlet and the air outlet on the cooling tank are connected with connecting flanges, and the air inlet and the air outlet are connected with the first connecting pipe and the second connecting pipe through the connecting flanges.
3. The flue gas cooling and discharging system of claim 1, wherein: the branch pipe is provided with a first valve.
4. The flue gas cooling and discharging system of claim 1, wherein: the circulating pipe is provided with a second valve.
5. The flue gas cooling and discharging system of claim 1, wherein: the asphalt flue gas capturing tower comprises a first tower body, a flue gas uniform distributor and a plurality of electric capturing plates, wherein the flue gas uniform distributor and the plurality of electric capturing plates are arranged in the first tower body; the inlet is connected with a second connecting pipe.
6. The flue gas cooling discharge system according to any one of claims 1 to 5, wherein: the washing tower comprises a second tower body, a first partition plate, a second partition plate, a water tank and a water pump, through holes are formed in the first partition plate and the second partition plate, the first partition plate and the second partition plate are fixedly installed in the second tower body, a plurality of transverse pipes are arranged above the first partition plate and the second partition plate, a plurality of spray heads are arranged on each transverse pipe, the transverse pipes are connected with the water pump through water pipes, and the water pump is located in the water tank; the first partition plate and the second partition plate are provided with fillers, the fillers form a filler layer, the water tank is arranged at the bottom of the second tower body, and the water tank is provided with a filter screen.
7. The flue gas cooling and discharging system of claim 6, wherein: the filler is Bohr balls.
8. The flue gas cooling and discharging system of claim 6, wherein: the side of the tower body is provided with a manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625759.4U CN215138226U (en) | 2021-03-24 | 2021-03-24 | Flue gas cooling and discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625759.4U CN215138226U (en) | 2021-03-24 | 2021-03-24 | Flue gas cooling and discharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215138226U true CN215138226U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120625759.4U Active CN215138226U (en) | 2021-03-24 | 2021-03-24 | Flue gas cooling and discharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215138226U (en) |
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2021
- 2021-03-24 CN CN202120625759.4U patent/CN215138226U/en active Active
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