Smoke and dust processing apparatus for fume emission of thermal power plant
Technical Field
The utility model relates to the technical field of smoke treatment, in particular to a smoke treatment device for smoke emission of a thermal power plant.
Background
The thermal power plant is a plant for producing electric energy by using combustible matters (such as coal) as fuel, and the basic production process is as follows: the fuel heats water to generate steam when burning, chemical energy of the fuel is converted into heat energy, steam pressure drives a steam turbine to rotate, the heat energy is converted into mechanical energy, then the steam turbine drives a generator to rotate, and the mechanical energy is converted into electric energy, wherein a large amount of flue gas is generated at the bottom of a boiler steam turbine, and the flue gas is a mixture of gas and smoke dust and is a main cause for polluting the atmosphere of a residential area, so a smoke dust treatment device is needed.
In the smoke dust treatment device in the prior art, most of the smoke dust is directly filtered by the filtering device, and then is filtered by the denitration device and the desulfurization device, so that the smoke dust emission standard is reached, but the temperature of the smoke dust exhausted by a thermal power plant is very high, if the smoke dust is not cooled and is directly discharged to the filtering device for filtering, the service life of the filter bag is reduced, and the replacement cost of the filter bag is increased.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a cooling device is not arranged in the device, smoke dust is directly discharged into a filtering device for filtering, the service life of a filter bag is reduced, and the replacement cost of the filter bag is increased.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the smoke and dust treatment device for the smoke and dust emission of the thermal power plant comprises a recovery box, wherein a recovery groove is formed in the recovery box, and a cooling mechanism and a filtering mechanism are arranged at the top of the recovery box;
the cooling mechanism comprises a cooling box, the inside of cooling box is provided with the flue, the fixed intercommunication in outer wall one side of flue has into the cigarette end, and advances outer wall one side of cigarette end and run through outer wall one side of cooling box, the fixed intercommunication in bottom of flue has the end of discharging fume, and the outer wall one side of end of discharging fume runs through the opposite side of cooling box to with filtering mechanism's input fixed intercommunication, the fixed intercommunication in outer wall one side of cooling box has the water pump, the fixed intercommunication of input of water pump has the water tank, the fixed intercommunication of input of water tank has the condenser pipe, and the fixed intercommunication of input and the output of cooling box of condenser pipe, the fixed cover of exterior wall of condenser pipe is equipped with a set of fin.
Preferably, the filter mechanism comprises a filter box, a group of filter bags are movably inserted at the top of the filter box, hooks are fixedly installed at the tops of the filter bags, the output end of the filter box is fixedly communicated with a first exhaust flue, the input end of the first exhaust flue is fixedly communicated with a denitration device, the output end of the denitration device is fixedly communicated with a second exhaust flue, the input end of the second exhaust flue is fixedly communicated with a desulfurization device, the output end of the desulfurization device is fixedly communicated with a third exhaust flue, and smoke dust is conveniently filtered under the action of the filter mechanism.
Preferably, a group of motors are fixedly arranged on one side of the outer wall of the filter box, the output ends of the motors penetrate through one side of the outer wall of the filter box, rectangular blocks are fixedly sleeved on the output ends of the motors, and the filter bag is convenient to vibrate and remove dust under the action that the motors drive the rectangular blocks to rotate.
Preferably, the top of water tank is provided with the water injection end, the top movable sleeve of water injection end is equipped with the top cap, conveniently adds the cooling water to the water tank under the effect of water injection end.
Preferably, the bottom fixed sleeve of water tank is equipped with first landing leg, the bottom fixed sleeve of denitrification facility is equipped with the second landing leg, the bottom fixed sleeve of desulfurization facility is equipped with the third landing leg, conveniently supports whole device under the effect of first landing leg, second landing leg and third landing leg.
Preferably, the output end of the flue is fixedly communicated with the top of the recovery box, and the bottom of the filter box is fixedly communicated with the top of the recovery box.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. in the utility model, the water pump is started firstly, the water pump pumps cooling water in the water tank into the cooling tank until the cooling tank is filled with the cooling water, then the cooling water flows back into the water tank after circulating for a circle through the condensing pipe, thus a circulation is formed, high-temperature smoke dust enters the flue through the smoke inlet end, the flue is completely wrapped by the cooling water, so that the temperature of the internal smoke dust is reduced, heavier smoke dust particles in the smoke dust fall into the recovery tank at the bottom under the action of gravity because the flue and the smoke inlet end are 90 degrees, and then the rest lighter smoke dust enters the filtering mechanism through the smoke outlet end for filtering.
2. In the utility model, low-temperature smoke enters the filter box, dust is removed by the filter bag, at the moment, the motor is started to drive the rectangular block to rotate, when the rectangular block rotates, the filter bag is vibrated, dust on the surface of the filter bag can be shaken off, and the shaken dust falls into the recovery box at the bottom, so that the dust can be recovered and utilized.
Drawings
Fig. 1 is a perspective view of a front view structure of a smoke treatment device for flue gas emission in a thermal power plant;
FIG. 2 is a perspective view of a cross-sectional structure of a cooling mechanism in a smoke treatment device for flue gas emission of a thermal power plant;
FIG. 3 is a side view of a cooling mechanism in a smoke treatment device for flue gas emission in a thermal power plant, which is provided by the utility model;
fig. 4 is a cross-sectional structural perspective view of a filtering mechanism in a smoke treatment device for flue gas emission of a thermal power plant;
fig. 5 is a perspective view of a part of a structure of a filtering mechanism in a smoke treatment device for smoke emission of a thermal power plant.
Legend description: 1. a recovery box; 2. a recovery tank; 3. a cooling mechanism; 301. a cooling box; 302. a flue; 303. a smoke inlet end; 304. a smoke exhaust end; 305. a water pump; 306. a water tank; 307. a condensing tube; 308. a heat sink; 309. a water injection end; 310. a top cover; 311. a first leg; 4. a filtering mechanism; 401. a filter box; 402. a filter bag; 403. a hook; 404. a first exhaust duct; 405. a denitration device; 406. a second discharge flue; 407. a desulfurizing device; 408. a third discharge flue; 409. a second leg; 410. a third leg; 411. a motor; 412. rectangular blocks.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
The embodiment 1, as shown in fig. 1-5, provides a smoke treatment device for flue gas emission of a thermal power plant, which comprises a recovery tank 1, wherein a recovery tank 2 is arranged in the recovery tank 1, and a cooling mechanism 3 and a filtering mechanism 4 are arranged at the top of the recovery tank 1;
the cooling mechanism 3 comprises a cooling box 301, a flue 302 is arranged in the cooling box 301, a smoke inlet end 303 is fixedly communicated with one side of the outer wall of the flue 302, one side of the outer wall of the smoke inlet end 303 penetrates through one side of the outer wall of the cooling box 301, a smoke exhaust end 304 is fixedly communicated with the bottom of the flue 302, one side of the outer wall of the smoke exhaust end 304 penetrates through the opposite side of the cooling box 301 and is fixedly communicated with the input end of the filtering mechanism 4, a water pump 305 is fixedly communicated with one side of the outer wall of the cooling box 301, a water tank 306 is fixedly communicated with the input end of the water pump 305, a condensing pipe 307 is fixedly communicated with the input end of the water tank 306, the input end of the condensing pipe 307 is fixedly communicated with the output end of the cooling box 301, and a group of cooling fins 308 are fixedly sleeved on the outer surface wall of the condensing pipe 307.
The effect achieved in the whole embodiment 1 is that the water pump 305 is started, the water pump 305 pumps the cooling water in the water tank 306 into the cooling tank 301 until the cooling tank 301 is filled with the cooling water, then the cooling water circulates for a circle through the condensation pipe 307 and flows back into the water tank 306, thus a circulation is formed, at this time, high-temperature smoke enters the flue 302 through the smoke inlet end 303, and the flue 302 is completely wrapped by the cooling water, so that the temperature of the smoke in the flue is reduced, and the low-temperature smoke cannot damage the filtering mechanism 4.
In embodiment 2, as shown in fig. 1-5, the filtering mechanism 4 includes a filtering box 401, a group of filtering bags 402 are movably inserted into the top of the filtering box 401, hooks 403 are fixedly installed on the top of the group of filtering bags 402, a first exhaust flue 404 is fixedly connected to the output end of the filtering box 401, a denitration device 405 is fixedly connected to the input end of the first exhaust flue 404, a second exhaust flue 406 is fixedly connected to the output end of the denitration device 405, a desulfurizing device 407 is fixedly connected to the input end of the second exhaust flue 406, a third exhaust flue 408 is fixedly connected to the output end of the desulfurizing device 407, a group of motors 411 are fixedly installed on one side of the outer wall of the filtering box 401, the output ends of the group of motors 411 penetrate through one side of the outer wall of the filtering box 401, a rectangular block 412 is fixedly sleeved on the output end of the filtering box, a water injection end 309 is arranged on the top of the water tank 306, a top cover 310 is movably sleeved on the top of the water injection end 309, a first support leg 311 is fixedly sleeved on the bottom of the water tank 306, a second support leg 409 is fixedly sleeved on the bottom of the denitration device 405, a third support leg 410 is fixedly sleeved on the bottom of the denitration device 407, the output end of the desulfurizing device 302 is fixedly connected to the top of the desulfurizing device 1 is fixedly connected to the top of the filtering box 1, and the top of the filtering box is fixedly connected to the bottom of the recycling box 1.
The effect that its whole real-time example 2 reached is, in the smoke and dust of low temperature enters into rose box 401, then carries out dust removal through filtering bag 402 and handle, at this moment start motor 411, will drive rectangular block 412 and rotate, when rectangular block 412 rotates, will shake filtering bag 402, just can shake the dust on filtering bag 402 surface off, the dust that shakes off will fall into in the collection box 1 of bottom, just so can recycle dust, the smoke and dust that filters will enter into denitrification facility 405 and desulfurization device 407 in proper order, the last rethread third discharge flue 408 discharges.
Working principle: firstly, the device is placed at a designated position, then the smoke inlet end 303 is communicated with a smoke outlet of a thermal power plant, at the moment, the top cover 310 is opened, cooling water is added into the water tank 306 through the water injection end 309, then the water pump 305 is started, the cooling water in the water tank 306 is pumped into the cooling tank 301 until the cooling tank 301 is filled with the cooling water, the cooling water flows back into the water tank 306 after circulating for a circle through the condensing pipe 307, thus a circulation is formed, the cooling water continuously dissipates heat in the circulation process of the condensing pipe 307, at the moment, high-temperature smoke dust enters the flue 302 through the smoke inlet end 303, the interior smoke dust is cooled due to the fact that the flue 302 is completely wrapped by the cooling water, and heavier smoke dust particles in the smoke dust fall into the recovery tank 1 at the bottom under the action of gravity because the flue 302 and the smoke inlet end 303 are 90 degrees, then the remaining lighter smoke dust enters the filtering mechanism 4 through the smoke discharging end 304 to be filtered, the low-temperature smoke dust enters the filtering box 401, the smoke dust is removed by the filtering bag 402, the motor 411 is started to drive the rectangular block 412 to rotate, when the rectangular block 412 rotates, the filtering bag 402 is vibrated to shake off the dust on the surface of the filtering bag 402, the shaken-off dust falls into the recycling box 1 at the bottom, the dust can be recycled, the filtered smoke dust enters the denitration device 405 through the first smoke discharging channel 404 to be subjected to denitration treatment, then enters the desulfurization device 407 through the second smoke discharging channel 406 to be subjected to desulfurization treatment, finally, the smoke dust is discharged through the third smoke discharging channel 408, the cooling mechanism 3 converts the high-temperature smoke dust into the low-temperature smoke dust, the low temperature smoke does not damage filter bag 402, which increases the life of filter mechanism 4, and solves the problems set forth in the background above.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.