CN112178630A - Combustion device for circulating fluidized bed boiler with ultralow emission and use method - Google Patents
Combustion device for circulating fluidized bed boiler with ultralow emission and use method Download PDFInfo
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- CN112178630A CN112178630A CN202011071331.6A CN202011071331A CN112178630A CN 112178630 A CN112178630 A CN 112178630A CN 202011071331 A CN202011071331 A CN 202011071331A CN 112178630 A CN112178630 A CN 112178630A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 51
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 36
- 239000003245 coal Substances 0.000 claims description 40
- 239000002893 slag Substances 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 13
- 239000013049 sediment Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 241000220317 Rosa Species 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/14—Stamping mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/24—Devices for removal of material from the bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention relates to the technical field of circulating fluidized bed boilers, in particular to a combustion device for an ultralow-emission circulating fluidized bed boiler and a using method thereof, the combustion device comprises a combustion furnace, a filtering device, a feeding device and a dustproof device, the filtering device is arranged at the top end of the inner side of the combustion furnace, the filtering device comprises a first filtering net, the first filtering net is fixedly connected at the top end of the inner side of the combustion furnace, a fixed block is fixedly connected at the top end of the combustion furnace, a first motor is fixedly connected at the right end of the fixed block positioned at the right side, and a crankshaft is fixedly connected at the tail end of a main shaft of the first motor. The smoke dust generated by combustion can be filtered, so that the subsequent treatment process of the smoke gas is reduced, and the investment of cost is reduced.
Description
Technical Field
The invention relates to the technical field of circulating fluidized bed boilers, in particular to a combustion device for an ultralow-emission circulating fluidized bed boiler and a using method thereof.
Background
The circulating fluidized bed boiler is a clean coal combustion technology with the highest industrialization degree, adopts fluidized combustion, mainly comprises a combustion chamber and a circulating return furnace, has the biggest difference with the bubbling fluidized bed combustion technology that the running wind speed is high, strengthens heterogeneous reaction processes such as combustion, desulfurization and the like, can expand the boiler capacity to the large capacity which can be accepted by the power industry at present, well solves the basic problems of heat, mechanics, materials and the like and the engineering problems of expansion, abrasion, over temperature and the like, becomes an advanced technology for utilizing hard-to-burn solid fuel energy, and has more and more applications to the circulating fluidized bed boiler along with the continuous development of the society, but when part of combustion devices for the circulating fluidized bed boiler are used, the combustion of coal blocks is not thorough enough, thereby increasing the emission and reducing the combustion efficiency, in addition, when the combustion device for the partial circulating fluidized bed boiler is used, smoke and dust generated by combustion cannot be well filtered, so that subsequent treatment procedures are increased, the cost input is increased, and finally, when ash is discharged, the smoke and dust cannot be well prevented from flying, so that the pollution to the working environment is caused, and the harm is brought to the health of workers.
Disclosure of Invention
The invention aims to provide a combustion device for an ultralow-emission circulating fluidized bed boiler and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a combustion device for an ultralow-emission circulating fluidized bed boiler and a using method thereof comprise a combustion furnace, a filtering device, a feeding device and a dustproof device, wherein the filtering device is arranged at the top end of the inner side of the combustion furnace, the filtering device comprises a first filtering screen, the first filtering screen is fixedly connected at the top end of the inner side of the combustion furnace, a fixed block is fixedly connected at the top end of the combustion furnace, a first motor is fixedly connected at the right end of the fixed block positioned at the right side, a crankshaft is fixedly connected at the tail end of a main shaft of the first motor and is rotationally connected with the fixed block positioned at the right side, a rotating rod is rotationally connected at the outer side of the crankshaft, a loop bar is rotationally connected at the other end of the rotating rod through a rotating shaft and penetrates through the combustion furnace, the loop bar is slidably, the other end of the first spring is fixedly connected with the loop bar, the bottom end of the inner bar is fixedly connected with a first collision block, the first collision block is connected with a first filter screen in a sliding mode, the right end of the combustion furnace is communicated with an air outlet pipe, the left end of the combustion furnace is provided with a feeding device, the bottom end of the right side of the feeding device is communicated with a conveying pipe, the conveying pipe is communicated with the combustion furnace, the bottom end of the combustion furnace is fixedly connected with a combustion mechanism, the left lower side of the combustion mechanism is fixedly connected with a slag discharging mechanism, the right end of the slag discharging mechanism is fixedly connected with a controller, and the left.
Preferably, the filtering device includes a second filter screen, the top end of the inner side of the combustion furnace is slidably connected with the second filter screen, the top end of the second filter screen is fixedly connected with a fixing column, the fixing column penetrates through the combustion furnace, the fixing column is slidably connected with the combustion furnace, the top end of the outer side of the fixing column is slidably connected with a second spring, the bottom end of the second spring is slidably connected with the combustion furnace, the top end of the second filter screen is slidably connected with a second collision block, the top end of the second collision block is fixedly connected with a positioning block, the positioning block penetrates through the combustion furnace, the positioning block is fixedly connected with the combustion furnace, and the.
Preferably, the feeding device comprises a support, the left end of the combustion furnace is fixedly connected with a support, the right side of the support is communicated with the conveying pipe, the left end of the support is fixedly connected with a second motor, a main shaft of the second motor penetrates through the support, the main shaft of the second motor is rotatably connected with the support, the tail end of the main shaft of the second motor is fixedly connected with a helical blade, the helical blade is rotatably connected with the support, the left side of the top end of the support is communicated with a material box, the right side of the top end of the support is slidably connected with a slide bar, the slide bar penetrates through the support, the inner side of the slide bar is slidably connected with a press bar, the top end of the left end surface of the combustion furnace is fixedly connected with a third motor, the tail end of the main shaft of the third motor is fixedly connected with a disc, the left, the right end of the pressing block is fixedly connected with a coal filtering net, and the coal filtering net is connected with the support in a sliding mode.
Preferably, the bottom end of the pressure lever is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the sliding rod.
Preferably, the bottom end of the pressing block is fixedly connected with a bump, and the bump is uniformly fixed at the bottom end of the pressing block.
Preferably, dust keeper includes bellows, the left end fixedly connected with bellows of slag extractor, the inboard sliding connection of bellows has the rose box, rose box bottom sliding connection has the metal mesh, and metal mesh and bellows sliding connection, connecting rod fixedly connected with fan is passed through to the inboard left side below of bellows, bellows left side hinged joint has the shutter door, bellows top intercommunication has fixed pipe, the other end intercommunication of fixed pipe has the smoke extraction pipe, smoke extraction pipe bottom intercommunication has the collection pipe, and the discharge gate fixed connection of collection pipe and slag extractor.
Preferably, the bottom end of the metal net is fixedly connected with a fourth spring, the other end of the fourth spring is fixedly connected with the air box, the bottom end of the metal net is provided with a control switch, the control switch is fixedly connected with the air box, and the left end face of the shielding door is fixedly connected with an alarm.
Preferably, the use method of the combustion device is as follows:
the method comprises the following steps: adding coal blocks to be combusted into a feeding device;
step two: the device is started by the controller, and at the moment, the feeding device can continuously crush the coal blocks and then convey the coal blocks into the combustion furnace;
step three: a combustion mechanism in the combustion furnace can continuously combust the crushed coal blocks, and a filter device can continuously filter smoke dust generated by combustion;
step four: when accomplishing the burning, collect the lime-ash after the burning through slag extractor, when need arrange the sediment, drive the discharge gate bottom of slag extractor to the dress sediment car, arrange the lime-ash after the burning into the dress sediment car through controller control slag extractor in, meanwhile, dust keeper can constantly absorb the smoke and dust that the sediment in-process produced, has avoided the smoke and dust to cause the pollution to the environment, has guaranteed staff's health.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the smoke dust filtering device, due to the arrangement of the first collision block and the first filter screen, the arrangement is matched with the sliding connection of the first collision block and the first filter screen, the elasticity of the first spring to the loop bar and the inner bar, the rotating connection of the crankshaft and the rotating bar and the driving of the first motor to the crankshaft, when the smoke dust filtering device is used, smoke dust generated by combustion can be filtered, so that the subsequent treatment process of smoke gas is reduced, and the cost input is reduced;
2. according to the smoke dust filtering device, due to the arrangement of the second collision block and the vibration motor, the arrangement is matched with the sliding connection between the second collision block and the second filter screen, the fixed connection between the vibration motor and the positioning block and the elasticity of the second spring to the fixed column, when the smoke dust filtering device is used, smoke dust generated by combustion can be filtered, so that the subsequent treatment procedures of smoke gas are reduced, and the cost input is reduced;
3. according to the coal filter, the pressing block, the coal filtering net and the second spring are matched, the third motor is matched for driving the disc, the fixed shaft is in sliding connection with the pressing rod, the second spring is used for fixing connection of the pressing rod and the sliding rod and the pressing block, the protruding block and the coal filtering net, and when the coal filter is used, coal blocks before combustion can be crushed and screened, so that the coal is combusted more thoroughly, the emission is reduced to the maximum extent, and the combustion efficiency is ensured;
4. in the invention, through the arrangement of the smoke collecting pipe, the filter box and the fan, the arrangement is matched with the traction of the fan on smoke dust, the sliding connection of the filter box and the metal net, the elasticity of the fourth spring on the metal net, the fixed connection of the control switch and the air box and the communication of the smoke extraction pipe and the smoke collecting pipe, and in the process of using the device, when ash slag is discharged and placed in a centralized way, the smoke dust generated by slag discharge can be collected in a centralized way, so that the phenomenon that the working environment is polluted due to the scattering of the smoke dust is avoided, and the health of workers is ensured.
Drawings
FIG. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic overall structure diagram of a second embodiment of the present invention;
FIG. 3 is a schematic view of the overall structure of the loading device of the present invention;
FIG. 4 is a schematic view of the overall structure of the dustproof device of the present invention;
FIG. 5 is a schematic view of the overall structure of the compression bar of the present invention.
In the figure: 1-combustion furnace, 2-filtration device, 201-first filter screen, 202-fixed block, 203-first motor, 204-crankshaft, 205-rotating rod, 206-loop bar, 207-inner rod, 208-first spring, 209-first collision block, 210-second filter screen, 211-fixed column, 212-second spring, 213-second collision block, 214-positioning block, 215-vibration motor, 3-air outlet pipe, 4-conveying pipe, 5-combustion mechanism, 6-feeding device, 601-bracket, 602-second motor, 603-helical blade, 604-bin, 605-sliding rod, 606-compression rod, 607-second spring, 608-third motor, 609-disc, 610-fixed shaft, 611-pressing block, 612-bump, 613-coal filtering net, 7-dustproof device, 701-bellows, 702-filter box, 703-metal mesh, 704-fourth spring, 705-control switch, 706-fan, 707-blocking door, 708-fixed pipe, 709-smoke extraction pipe, 710-smoke collection pipe, 711-alarm, 8-slag discharge mechanism and 9-controller.
Detailed Description
Example 1:
referring to fig. 1, fig. 3, fig. 4 and fig. 5, the present invention provides a technical solution:
a combustion device for an ultralow-emission circulating fluidized bed boiler and a using method thereof comprise a combustion furnace 1, a filtering device 2, a feeding device 6 and a dustproof device 7, wherein the filtering device 2 is arranged at the top end of the inner side of the combustion furnace 1, the filtering device 2 comprises a first filtering net 201, the first filtering net 201 is fixedly connected at the top end of the inner side of the combustion furnace 1, a fixed block 202 is fixedly connected at the top end of the combustion furnace 1, a first motor 203 is fixedly connected at the right end of the fixed block 202 positioned at the right side, a crankshaft 204 is fixedly connected at the tail end of a main shaft of the first motor 203, the crankshaft 204 is rotatably connected with the fixed block 202 positioned at the right side, a rotating rod 205 is rotatably connected at the outer side of the crankshaft 204, the other end of the rotating rod 205 is rotatably connected with a loop bar 206 through a rotating shaft, the loop bar 206 penetrates through, the other end of the first spring 208 is fixedly connected with the loop bar 206, the bottom end of the inner rod 207 is fixedly connected with the first collision block 209, the first collision block 209 is connected with the first filter screen 201 in a sliding way, when the device is used, smoke dust generated by combustion can be filtered, thereby reducing the subsequent treatment process of smoke gas and reducing the cost input, the right end of the combustion furnace 1 is communicated with the air outlet pipe 3, the left end of the combustion furnace 1 is provided with the feeding device 6, the feeding device 6 comprises a bracket 601, the left end of the combustion furnace 1 is fixedly connected with the bracket 601, the right side of the bracket 601 is communicated with the conveying pipe 4, the left end of the bracket 601 is fixedly connected with the second motor 602, the main shaft of the second motor 602 penetrates through the bracket 601, the main shaft of the second motor 602 is rotatably connected with the bracket 601, the tail end of the main shaft of the second motor 602 is fixedly connected with a helical blade 603, the helical blade 603, the right side of the top end of the support 601 is slidably connected with a sliding rod 605, the sliding rod 605 penetrates through the support 601, the inner side of the sliding rod 605 is slidably connected with a pressure rod 606, the bottom end of the pressure rod 606 is fixedly connected with a second spring 607, the other end of the second spring 607 is fixedly connected with the sliding rod 605, the arrangement has a buffering effect and has a protection effect on a third motor 608, the top end of the left end surface of the combustion furnace 1 is fixedly connected with the third motor 608, the tail end of a main shaft of the third motor 608 is fixedly connected with a disc 609, the left end of the disc 609 is fixedly connected with a fixed shaft 610, the fixed shaft 610 is slidably connected with the pressure rod 606, the bottom end of the sliding rod 605 is fixedly connected with a pressing block 611, the pressing block 611 is slidably connected with the support 601, the bottom end of the pressing block 611 is fixedly connected with a convex block 612, and the coal filtering net 613 is connected with the bracket 601 in a sliding way, when the device is used, the coal block before burning can be crushed and screened, thereby leading the coal to be burnt more thoroughly, reducing the discharge to the maximum extent and ensuring the burning efficiency, the right bottom end of the feeding device 6 is communicated with the delivery pipe 4, the delivery pipe 4 is communicated with the burning furnace 1, the bottom end of the burning furnace 1 is fixedly connected with the burning mechanism 5, the left lower part of the burning mechanism 5 is fixedly connected with the slag discharging mechanism 8, the right end of the slag discharging mechanism 8 is fixedly connected with the controller 9, the left end of the slag discharging mechanism 8 is provided with the dust-proof device 7, the dust-proof device 7 comprises a wind box 701, the left end of the slag discharging mechanism 8 is fixedly connected with the wind box 701, the inner side of the wind box 701 is connected with the filtering box 702 in a sliding way, the bottom end of the filtering box 702 is, the left side of the air box 701 is hinged with a blocking door 707, the bottom end of the metal net 703 is fixedly connected with a fourth spring 704, the other end of the fourth spring 704 is fixedly connected with the bellows 701, the bottom end of the metal mesh 703 is provided with a control switch 705, the control switch 705 is fixedly connected with the air box 701, the left end surface of the shielding door 707 is fixedly connected with an alarm 711, the arrangement is convenient for automatically reminding workers to clean the filter box 702, the top end of the air box 701 is communicated with a fixed pipe 708, the other end of the fixed pipe 708 is communicated with a smoke extraction pipe 709, the bottom end of the smoke extraction pipe 709 is communicated with a smoke collection pipe 710, and the smoke collecting hopper 710 is fixedly connected with the discharge hole of the slag discharging mechanism 8, in the process of using the device, when the ash slag is discharged and placed in a centralized way, the dust generated by slag discharge can be collected in a centralized way, thereby avoiding the phenomenon that the working environment is polluted due to the scattering of the smoke dust and ensuring the health of the working personnel.
The use method of the combustion device comprises the following steps:
the method comprises the following steps: adding the coal blocks to be combusted into a feeding device 6;
step two: the device is started through the controller 9, and at the moment, the feeding device 6 can continuously crush the coal blocks and then convey the coal blocks into the combustion furnace 1;
step three: the combustion mechanism 8 in the combustion furnace 1 can continuously combust the pulverized coal, and the filter device 2 can continuously filter smoke dust generated by combustion;
step four: when accomplishing the burning, collect the lime-ash after the burning through slag extractor 8, when need arrange the sediment, drive the discharge gate bottom of slag extractor 8 to the dress sediment car, arrange the lime-ash after the burning into the dress sediment car through controller 9 control slag extractor 8 in, meanwhile, dust keeper 7 can constantly absorb the smoke and dust that the sediment in-process produced, has avoided the smoke and dust to cause the pollution to the environment, has guaranteed staff's health.
The working process is as follows: all electrical appliances in the device are external power supplies, when the device is used, coal blocks to be combusted are added into a material box 604, then the device is started through a controller 9, at the moment, a second motor 602 can drive a helical blade 603 to rotate to convey the coal blocks, a third motor 608 can drive a fixed shaft 610 at the left end of a disc 609 to rotate, so that a pressing block 611 and a coal filtering net 613 are driven to reciprocate up and down, the coal blocks are crushed through the pressing block 611 fixed with a protruding block 612, the coal blocks which are not completely crushed can be repeatedly crushed by the coal filtering net 613 which moves up and down in the process of conveying the crushed coal blocks, a second spring 607 in a sliding rod 605 can be continuously compressed by the pressing rod 606 in the process of crushing the coal blocks, a buffering effect is achieved, when the crushed coal blocks are filtered, the coal blocks can be conveyed into a combustion furnace 1 through a conveying pipe 4, then the combustion mechanism 8 in the combustion furnace 1 will continuously burn the pulverized coal, before the burned flue gas is discharged through the outlet pipe 3, the first filter screen 201 will continuously filter the smoke generated by combustion, meanwhile, under the control of the controller 9, the first motor 203 will continuously drive the crankshaft 204 to rotate, thereby driving the rotating rod 205 to continuously rotate and move up and down, at this time, the loop rod 206 will continuously move up and down, thereby driving the first collision block 209 at the bottom end of the inner rod 207 to continuously move up and down, thereby continuously colliding the first filter screen 201, after collision, the inner rod 207 will compress the first spring 208, thereby playing a role of buffering, at this time, the smoke filtered at the bottom end of the first filter screen 201 will fall to the bottom end of the combustion furnace 1, thereby avoiding the phenomenon of blockage of the first filter screen 201, ensuring the normal filtration of smoke, when the coal is burned, the slag discharging mechanism 8 is controlled by the controller 9 to collect burned ash, when slag discharging is needed, the slag loading vehicle is driven to the bottom end of a discharge hole of the slag discharging mechanism 8, the slag discharging mechanism 8 is controlled by the controller 9 to discharge the burned ash into the slag loading vehicle, meanwhile, the fan 706 can suck smoke dust into the air box 701 through the smoke collecting pipe 710, the smoke sucking pipe 709 and the fixing pipe 708, and then the smoke dust is discharged after being filtered by the filter box 702, so that the phenomenon that the smoke dust pollutes the environment is avoided, the health of workers is guaranteed, as the smoke dust is increased, the wind resistance received by the filter box 702 can be continuously increased, the fourth spring 704 can be continuously compressed, when the control switch is triggered, the alarm 711 can give an alarm, at the moment, the blocking door 707 needs to be opened to clean the filter box 702, and the filter box 705 can be reset after being cleaned, and the device can be continuously used.
Example 2:
referring to fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a technical solution:
the same parts as those in embodiment 1 in embodiment 2 are not repeated, except that: the filtering device 2 comprises a second filter screen 210, the top end of the inner side of the combustion furnace 1 is slidably connected with the second filter screen 210, the top end of the second filter screen 210 is fixedly connected with a fixed column 211, the fixed column 211 penetrates through the combustion furnace 1, the fixed column 211 is slidably connected with the combustion furnace 1, the top end of the outer side of the fixed column 211 is slidably connected with a second spring 212, the bottom end of the second spring 212 is slidably connected with the combustion furnace 1, the top end of the second filter screen 210 is slidably connected with a second collision block 213, the top end of the second collision block 213 is fixedly connected with a positioning block 214, the positioning block 214 penetrates through the combustion furnace 1, the positioning block 214 is fixedly connected with the combustion furnace 1, the inner side of the positioning block 214 is fixedly connected with a vibrating motor 215, when the device is used.
The working process is as follows: before the flue gas after the burning is discharged through outlet duct 3, second filter screen 210 can constantly filter the smoke and dust that the burning produced, meanwhile, vibrating motor 215 can constantly make the second of locating piece 214 bottom hit piece 213 and produce vibrations, second filter screen 210 touches the second of vibrations and hits when piece 213, second filter screen 210 can constantly stimulate fixed column 211 and carry out the up-and-down motion, second spring 212 can constantly be compressed and reset, hit when piece 213 and second filter screen 210 contact at the second, second filter screen 210 can take place violent collision, thereby shake the filterable smoke and dust of second filter screen 210 to burning furnace 1 bottom, the phenomenon that second filter screen 210 takes place to block up has been avoided.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (8)
1. The utility model provides an ultralow emission burner for circulating fluidized bed boiler, includes fires burning furnace (1), filter equipment (2), loading attachment (6) and dust keeper (7), its characterized in that: the combustion furnace (1) is provided with a filtering device (2) at the top end of the inner side, the filtering device (2) comprises a first filtering net (201), the first filtering net (201) is fixedly connected at the top end of the inner side of the combustion furnace (1), the fixed block (202) is fixedly connected at the top end of the combustion furnace (1), a first motor (203) is fixedly connected at the right end of the fixed block (202) on the right side, a crankshaft (204) is fixedly connected at the tail end of a main shaft of the first motor (203), the crankshaft (204) is rotatably connected with the fixed block (202) on the right side, a rotating rod (205) is rotatably connected at the outer side of the crankshaft (204), the other end of the rotating rod (205) is rotatably connected with a loop bar (206) through a rotating shaft, the loop bar (206) penetrates through the combustion furnace (1), the loop bar (206) is slidably, the top end of the inner rod (207) is fixedly connected with a first spring (208), the other end of the first spring (208) is fixedly connected with the loop bar (206), the bottom end of the inner rod (207) is fixedly connected with a first collision block (209), the first collision block (209) is connected with the first filter screen (201) in a sliding way, the right end of the combustion furnace (1) is communicated with an air outlet pipe (3), a feeding device (6) is arranged at the left end of the combustion furnace (1), the bottom end of the right side of the feeding device (6) is communicated with a conveying pipe (4), the delivery pipe (4) is communicated with the combustion furnace (1), the bottom end of the combustion furnace (1) is fixedly connected with a combustion mechanism (5), a slag discharging mechanism (8) is fixedly connected at the lower left of the combustion mechanism (5), the device is characterized in that the right end of the slag discharging mechanism (8) is fixedly connected with a controller (9), and the left end of the slag discharging mechanism (8) is provided with a dustproof device (7).
2. The combustion apparatus for an ultra-low emission circulating fluidized bed boiler according to claim 1, wherein: the filtering device (2) comprises a second filter screen (210), the top end of the inner side of the combustion furnace (1) is connected with the second filter screen (210) in a sliding way, the top end of the second filter screen (210) is fixedly connected with a fixed column (211), the fixed column (211) penetrates through the combustion furnace (1), the fixed column (211) is connected with the combustion furnace (1) in a sliding way, the top end of the outer side of the fixed column (211) is connected with a second spring (212) in a sliding way, the bottom end of the second spring (212) is connected with the combustion furnace (1) in a sliding way, the top end of the second filter screen (210) is connected with a second collision block (213) in a sliding way, the top end of the second collision block (213) is fixedly connected with a positioning block (214), and the positioning block (214) penetrates through the combustion furnace (1), the positioning block (214) is fixedly connected with the combustion furnace (1), and the inner side of the positioning block (214) is fixedly connected with a vibration motor (215).
3. The combustion apparatus for an ultra-low emission circulating fluidized bed boiler according to claim 1, wherein: the feeding device (6) comprises a support (601), the left end of the combustion furnace (1) is fixedly connected with the support (601), the right side of the support (601) is communicated with the conveying pipe (4), the left end of the support (601) is fixedly connected with a second motor (602), a main shaft of the second motor (602) penetrates through the support (601), a main shaft of the second motor (602) is rotatably connected with the support (601), the tail end of the main shaft of the second motor (602) is fixedly connected with a helical blade (603), the helical blade (603) is rotatably connected with the support (601), the left side of the top end of the support (601) is communicated with a material box (604), the right side of the top end of the support (601) is slidably connected with a sliding rod (605), the sliding rod (605) penetrates through the support (601), the inner side of the sliding rod (605) is slidably connected with a pressing rod (606), the top end of the left end face, the tail end of a main shaft of the third motor (608) is fixedly connected with a disc (609), the left end of the disc (609) is fixedly connected with a fixed shaft (610), the fixed shaft (610) is connected with a pressure rod (606) in a sliding mode, the bottom end of the sliding rod (605) is fixedly connected with a pressing block (611), the pressing block (611) is connected with a support (601) in a sliding mode, the right end of the pressing block (611) is fixedly connected with a coal filtering net (613), and the coal filtering net (613) is connected with the support (601) in a sliding mode.
4. The combustion apparatus for an ultra-low emission circulating fluidized bed boiler according to claim 3, wherein: the bottom end of the pressure lever (606) is fixedly connected with a second spring (607), and the other end of the second spring (607) is fixedly connected with the sliding rod (605).
5. The combustion apparatus for an ultra-low emission circulating fluidized bed boiler according to claim 3, wherein: the bottom end of the pressing block (611) is fixedly connected with a bump (612), and the bump (612) is uniformly fixed at the bottom end of the pressing block (611).
6. The combustion apparatus for an ultra-low emission circulating fluidized bed boiler according to claim 1, wherein: dust keeper (7) include bellows (701), slag extractor (8) left end fixedly connected with bellows (701), bellows (701) inboard sliding connection has filter box (702), filter box (702) bottom sliding connection has metal mesh (703), and metal mesh (703) and bellows (701) sliding connection, connecting rod fixedly connected with fan (706) are passed through to bellows (701) inboard left side below, bellows (701) left side hinged joint has shelter from door (707), bellows (701) top intercommunication has fixed pipe (708), the other end intercommunication of fixed pipe (708) has smoke extraction pipe (709), smoke extraction pipe (709) bottom intercommunication has collection pipe (710), and the discharge gate fixed connection of collection pipe (710) and slag extractor (8).
7. The combustion apparatus for an ultra-low emission circulating fluidized bed boiler according to claim 6, wherein: the safety protection device is characterized in that a fourth spring (704) is fixedly connected to the bottom end of the metal net (703), the other end of the fourth spring (704) is fixedly connected with the air box (701), a control switch (705) is arranged at the bottom end of the metal net (703), the control switch (705) is fixedly connected with the air box (701), and an alarm (711) is fixedly connected to the left end face of the blocking door (707).
8. The combustion device and the use method for the circulating fluidized bed boiler with ultra-low emission according to the claims 1 to 7 are characterized in that the use method of the combustion device is as follows:
the method comprises the following steps: adding the coal blocks to be combusted into a feeding device (6);
step two: the device is started through the controller (9), and at the moment, the feeding device (6) can continuously crush the coal blocks and then convey the coal blocks into the combustion furnace (1);
step three: the combustion mechanism (8) in the combustion furnace (1) can continuously combust the pulverized coal, and the filter device (2) can continuously filter smoke dust generated by combustion;
step four: when accomplishing the burning, collect the lime-ash after the burning through slag extractor (8), when need arrange the sediment, drive the discharge gate bottom of slag extractor (8) to the dress sediment car, arrange into the dress sediment car through controller (9) control slag extractor (8) the lime-ash after the burning in, meanwhile, dust keeper (7) can constantly absorb the smoke and dust that the sediment in-process produced, avoided the smoke and dust to cause the pollution to the environment, guaranteed staff's health.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011071331.6A CN112178630A (en) | 2020-10-09 | 2020-10-09 | Combustion device for circulating fluidized bed boiler with ultralow emission and use method |
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| CN202011071331.6A CN112178630A (en) | 2020-10-09 | 2020-10-09 | Combustion device for circulating fluidized bed boiler with ultralow emission and use method |
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Application publication date: 20210105 |