CN214389487U - High-temperature flue gas dust removal and purification device - Google Patents
High-temperature flue gas dust removal and purification device Download PDFInfo
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- CN214389487U CN214389487U CN202120627438.8U CN202120627438U CN214389487U CN 214389487 U CN214389487 U CN 214389487U CN 202120627438 U CN202120627438 U CN 202120627438U CN 214389487 U CN214389487 U CN 214389487U
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Abstract
The utility model discloses a high-temperature flue gas dust removal and purification device, which comprises an induced draft fan arranged on a boiler gas pipeline, wherein a chimney is connected on the induced draft fan; a spray tower is arranged on the gas pipeline behind the boiler, a spray pipeline is arranged above the spray tower, and a water collecting tank is connected below the spray tower through a water pipe; a water pipe is arranged between the water collecting tank and the spraying pipeline, and a pump is arranged on the water pipe; a filter is arranged on the gas pipeline behind the spray tower, a filter plate is arranged in the filter, and the bottom of the filter is connected to the water collecting tank through a water pipe; the water collecting tank is connected with a water replenishing tank through a water pipe. The utility model discloses the high temperature flue gas that the boiler produced further removes dust through the filter after the spray column cooling removes dust, discharges dustless flue gas after the cooling in the chimney at last, can not the polluted environment, and the water that the spray column fell down is gone into through the pump machine pump and is sprayed the use once more in the spray line, has avoided the wasting of resources, has still reduced the tube coupling simultaneously.
Description
Technical Field
The utility model relates to a technical field, especially a high temperature flue gas dust removal purification device are handled to the flue gas.
Background
The boiler can produce a large amount of high temperature flue gas when burning, if these high temperature flue gases are directly discharged in the chimney through the draught fan, the heat in the flue gas can cause the ambient temperature to rise, contains a large amount of dusts in the flue gas of boiler burning moreover, if directly through the direct emission of chimney in the air, not only polluted environment, still can influence resident's on every side production life.
In order to reduce the emission of dust in the high-temperature flue gas, a dust remover is generally used for removing dust from the flue gas before the emission, but in this way, although the dust in the flue gas is removed, the heat in the flue gas is emitted into the air, which causes waste of resources.
In order to avoid resource waste, a heat exchanger is additionally arranged behind the dust remover to exchange heat with high-temperature flue gas, but in the mode, an additional pipeline needs to be connected for heat exchange, the pipeline is complex, and the occupied area is large.
Disclosure of Invention
The utility model discloses the technical problem that needs to solve provides a high temperature flue gas dust removal purification device, reduces the content of dust in the flue gas, still avoids the wasting of resources.
In order to solve the technical problem, the utility model adopts the following technical proposal.
The high-temperature flue gas dedusting and purifying device comprises an induced draft fan arranged on a boiler gas pipeline, wherein the induced draft fan is connected with a chimney for discharging flue gas; a spray tower for cooling and dedusting high-temperature flue gas is arranged on a gas pipeline behind the boiler, a spray pipeline for spraying water to the high-temperature flue gas in the spray tower is arranged above the spray tower, and a water collecting tank for collecting spray water is connected below the spray tower through a water pipe; a water pipe is arranged between the water collecting tank and the spraying pipeline, and a pump for pumping water in the water collecting tank into the spraying pipeline is arranged on the water pipe; a filter for further filtering the sprayed flue gas is arranged on the gas pipeline behind the spray tower, a filter plate is arranged in the filter, and the bottom of the filter is connected to the water collecting tank through a water pipe; the water collecting tank is connected with a water replenishing tank for replenishing water into the water collecting tank through a water pipe.
Above-mentioned high temperature flue gas dust removal purification device, the inside of catch basin is provided with the level sensor who is used for monitoring water level in the catch basin, is provided with the PLC controller that is used for controlling water level in the catch basin on the outer wall of catch basin, and the input of PLC controller is connected to level sensor's output.
Above-mentioned high temperature flue gas dust removal purifier, be provided with the moisturizing valve that is used for controlling the moisturizing on the water pipe that moisturizing case and catch basin are connected, the output of PLC controller is connected to the input of moisturizing valve.
According to the high-temperature flue gas dedusting and purifying device, the spraying pipeline is provided with the plurality of nozzles for spraying water into the spraying tower.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses the high temperature flue gas that the boiler produced further removes dust through the filter after the spray column cooling removes dust, discharges dustless flue gas after the cooling in the chimney at last, can not the polluted environment, and the water that the spray column fell down is gone into through the pump machine pump and is sprayed the use once more in the spray line, has avoided the wasting of resources, has still reduced the tube coupling simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. the system comprises a boiler, a gas pipeline 2, a spray tower 3, a filter 4, an induced draft fan 5, a chimney 6, a water collecting tank 7, a water pipe 8, a water supplementing tank 9, a water supplementing valve 10, a pump 11, a liquid level sensor 12, a spray head 13 and a PLC (programmable logic controller) 14.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The structure of the high-temperature flue gas dedusting and purifying device is shown in figure 1, and the high-temperature flue gas dedusting and purifying device comprises a boiler 1, a spray tower 3, a filter 4, an induced draft fan 5, a chimney 6 and a water collecting tank 7. Spray column 3 connects on boiler 1's gas pipeline, be used for spraying the cooling dust removal to high temperature flue gas, filter 4 sets up on the gas pipeline at spray column 3 rear, be used for further removing dust to the flue gas after spraying, draught fan 5 sets up on the gas pipeline at filter rear, chimney 6 is connected on the gas pipeline at draught fan 5 rear, be used for discharging the flue gas after the cooling removes dust, catch basin 7 leads to pipe and sets up the below at spray column 3, be used for collecting the shower water.
The top of spray column 3 is provided with the spray line, is provided with shower nozzle 13 on the spray line for spray water in to the spray column, and the high temperature flue gas that boiler 1 produced passes through gas pipeline 2 and gets into the inside of spray column 3, and shower nozzle 13 is to the high temperature flue gas water spray, when cooling down to the high temperature flue gas, in the dust in the high temperature flue gas fell into catch basin 7 along with the shower water, the spray column sprayed the high temperature flue gas and cooled down the dust removal.
The flue gas after spraying and cooling is further filtered through the filter 4, gets rid of the dust in the flue gas, is provided with the filter in the filter 4, and the bottom of filter 4 leads to pipe to be connected on the catch basin 7, and when the filter filtered the flue gas, moisture in the flue gas flows into in the catch basin 7 through the water pipe of filter bottom, and the flue gas after the filter filtration is discharging through the chimney 6 through the draught fan 5.
The water containing dust in the spray tower and the filter flows into the water collecting tank through the water pipe, the water is precipitated in the water collecting tank, and in the precipitation process, the clear water on the upper layer is pumped into the spray pipeline through the pump machine and is sprayed into the spray tower through the spray head.
The inside of catch basin 7 is provided with level sensor 12 for water level height in the monitoring catch basin is provided with PLC controller 14 on the outer wall of catch basin 7, is used for controlling water level in the catch basin, and PLC controller's input is connected to level sensor's output.
The water collecting tank 7 is connected with a water replenishing tank 9 through a water pipe 8 and is used for replenishing water in the water collecting tank, a water replenishing valve 10 is arranged on the water pipe 8, connected with the water collecting tank 7, of the water replenishing tank 9 and is used for controlling water replenishing, and the input end of the water replenishing valve is connected with the output end of the PLC.
When level sensor detected the reduction of water level in the catch basin, when the water in the catch basin was not enough to guarantee to spray the pipeline water spray, the water compensating valve was opened to the PLC controller, and the water compensating tank is to the moisturizing in the catch basin, just so can guarantee that the shower nozzle lasts and carry out the water spray cooling to high temperature flue gas.
The utility model discloses in, the high temperature flue gas that the boiler produced passes through in the gas pipeline gets into the spray column, and after shower nozzle water spray cooling dust removal in the spray column, further remove dust through the filter at rear again, discharge in getting into the chimney through the draught fan, and last exhaust flue gas is the flue gas after the cooling removes dust, can not the polluted environment.
Claims (4)
1. The high-temperature flue gas dedusting and purifying device comprises an induced draft fan (5) arranged on a gas pipeline (2) of a boiler (1), wherein a chimney (6) for discharging flue gas is connected to the induced draft fan (5); the method is characterized in that: a spray tower (3) for cooling and dedusting high-temperature flue gas is arranged on a gas pipeline behind the boiler (1), a spray pipeline for spraying water to the high-temperature flue gas in the spray tower is arranged above the spray tower (3), and a water collecting tank (7) for collecting spray water is connected below the spray tower (3) through a water pipe; a water pipe (8) is arranged between the water collecting tank (7) and the spraying pipeline, and a pump (11) for pumping water in the water collecting tank into the spraying pipeline is arranged on the water pipe; a filter (4) for further filtering the sprayed flue gas is arranged on the gas pipeline behind the spray tower (3), a filter plate is arranged in the filter, and the bottom of the filter is connected to a water collecting tank (7) through a water pipe; the water collecting tank (7) is connected with a water replenishing tank (9) for replenishing water into the water collecting tank through a water pipe (8).
2. The high-temperature flue gas dedusting and purifying device according to claim 1, characterized in that: the inside of catch basin (7) is provided with level sensor (12) that are used for monitoring the interior water level of catch basin, is provided with PLC controller (14) that are used for controlling the interior water level of catch basin on the outer wall of catch basin (7), and PLC controller's input is connected to level sensor's output.
3. The high-temperature flue gas dedusting and purifying device according to claim 2, characterized in that: and a water replenishing valve (10) used for controlling water replenishing is arranged on a water pipe (8) connected with the water replenishing tank (9) and the water collecting tank (7), and the input end of the water replenishing valve is connected with the output end of the PLC.
4. The high-temperature flue gas dedusting and purifying device according to claim 1, characterized in that: the spraying pipeline is provided with a plurality of spray heads (13) used for spraying water into the spraying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627438.8U CN214389487U (en) | 2021-03-29 | 2021-03-29 | High-temperature flue gas dust removal and purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627438.8U CN214389487U (en) | 2021-03-29 | 2021-03-29 | High-temperature flue gas dust removal and purification device |
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| Publication Number | Publication Date |
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| CN214389487U true CN214389487U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120627438.8U Active CN214389487U (en) | 2021-03-29 | 2021-03-29 | High-temperature flue gas dust removal and purification device |
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Cited By (1)
| 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 |
-
2021
- 2021-03-29 CN CN202120627438.8U patent/CN214389487U/en active Active
Cited By (1)
| 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 |
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