CN114590596A - Power plant is with pneumatic conveyor who has preheating dust removal function - Google Patents
Power plant is with pneumatic conveyor who has preheating dust removal function Download PDFInfo
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- CN114590596A CN114590596A CN202210058930.7A CN202210058930A CN114590596A CN 114590596 A CN114590596 A CN 114590596A CN 202210058930 A CN202210058930 A CN 202210058930A CN 114590596 A CN114590596 A CN 114590596A
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- air
- pipe
- dust
- electric field
- dust removing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a pneumatic conveying device with a preheating and dust removing function for a power plant, which belongs to the technical field of pneumatic conveying and comprises an induced draft fan, a dust removing component, an air inlet pipe, a pulverized coal bin, a feeding pipe, a deviation correcting component and a conveying pipe, wherein the induced draft fan is communicated with the air inlet pipe through the dust removing component, the lower end of the pulverized coal bin is provided with a feeding component, one end of the feeding component is connected with the air inlet pipe, the other end of the feeding component is connected with the feeding pipe, one end of the deviation correcting component is connected with the feeding pipe, the other end of the deviation correcting component is connected with the conveying pipe, the dust removing component dries and removes dust from air, the feeding component feeds pulverized coal in the pulverized coal bin into the air, the deviation correcting component is arranged at the bent or bent part of the pipeline, the deviation correcting component sprays air for multiple times along the tangential direction of the inner wall of the pipeline to further increase the air pressure outside the pulverized coal, the pressure is applied to the pulverized coal through the enhanced air pressure, so that the pulverized coal cannot be close to the inner wall of the pipeline, and the conveying efficiency of the pulverized coal is further improved.
Description
Technical Field
The invention relates to the technical field of pneumatic conveying, in particular to a pneumatic conveying device with a preheating and dedusting function for a power plant.
Background
The pneumatic transmission mode applied to the power plant comprises a positive pressure pneumatic transmission system, a negative pressure pneumatic transmission system and the like, the systems have the defects of low output, short transmission distance and poor safety and economy of system operation, the power plant in China mostly adopts the positive pressure transmission system at present, the energy consumption is high, the equipment abrasion is serious, the transmission distance is short, and once long-distance transmission is realized, a transfer bin and a secondary transmission system are needed. No matter be malleation pneumatic conveying system or second grade conveying system, these systems all adopt the pipeline of being connected and constituteed by a section of steel pipe jointly, in order to adapt to the structure and the overall arrangement of device, some steel pipes all need buckle when the installation is used, this just makes when buggy through the bending region, because of receiving the influence of centrifugal force and striking on the pipeline inner wall, and then cause buggy to pile up and the pipe blockage, this kind of pipeline is very easily produced stifled pipe phenomenon at the in-process of transported substance material, seriously influences the improvement of production efficiency.
Disclosure of Invention
The invention aims to provide a pneumatic conveying device with a preheating and dust removing function for a power plant, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a power plant is with strength conveyor who has preheating dust removal function, strength conveyor includes draught fan, dust removal part, air-supply line, buggy storehouse, conveying pipe, the part of rectifying and conveyer pipe, the draught fan passes through dust removal part and air-supply line intercommunication, feeding part is installed to buggy storehouse lower extreme, feeding part one end and air-supply line pipe connection, the feeding part other end and conveying pipe connection, rectifying part one end and conveying pipe connection, the part other end and the conveying pipe connection of rectifying, the conveyer pipe sends the buggy into burning furnace. The draught fan sends into the dust removal part with wind, the dust removal part carries out drying and dust removal to the air, and then clear away the moisture in the air, reduce the humidity of air, avoid the buggy to be stained with and attach on the pipeline inner wall, improve the mobility of buggy in the air, and simultaneously, preheat the buggy through the air that heaies up, feeding part sends into the air with the buggy in the buggy storehouse, the bending or the department of buckling at the pipeline is installed to the part of rectifying, the part of rectifying sprays the air along the tangential direction of pipeline inner wall many times, and then increase the atmospheric pressure in the buggy outside, exert pressure to the buggy through the atmospheric pressure of reinforcing, make the buggy can't be close to the pipeline inner wall, make the buggy wrap up in the air all the time and can't contact with the pipe wall, and then improve the conveying efficiency of buggy.
The dust removal component comprises an isolation box, a shell and a support plate, the draught fan is communicated with the interior of the isolation box through a connecting pipe, the shell and the support plate are both arranged in the isolation box, two guide plates are arranged on two sides of the shell in the isolation box, and the two guide plates are mutually matched to form a circular channel in the isolation box; the backup pad is only installed the support to the inner shaft to can not carry out the shutoff to the inner space of shielded cell, and the air flows out the back from the shell promptly, can pass the backup pad and move the position to dust removal board.
The utility model discloses a wire cutting machine, including shell, backup pad, interior axle, cutting board, casing, magnet, pivot in the backup pad, the backup pad is located the shell and keeps away from one side of linking pipe, install the magnet in the shell, rotate in the backup pad and install interior axle, the one end of interior axle is located the shell, is located the shell install the sleeve pipe on interior epaxial, the sleeve pipe does not contact with the shell, installs a plurality of cutting board on the sleeve pipe, every all install the wire on the cutting board, the wire in a plurality of cutting board is established ties, and wherein two wires that are located head, tail position are connected with control system electricity, interior axle keeps away from the one end outer lane of shell and installs the coil, the coil is connected with control system electricity. The magnet is divided into two magnets, the cutting board rotates in the impact of air infused in the connecting pipe, then a wire in the cutting board cuts a magnetic induction line and generates current, the control system rectifies the current and conveys the rectified current to a coil, the coil generates heat, the air is heated and dried through the generated heat, an included angle exists between the board surface of each cutting board and the axis of the inner shaft, namely, the cutting board is obliquely arranged on the inner shaft, and the inner shaft is driven to rotate by the cutting board after being impacted by the air.
The inner shaft is provided with a coil, a plurality of dust removing plates are arranged at one end of the inner shaft, which is close to the connecting pipe, in a conical shape, a plurality of spiral plates are arranged on the end face of the cone, a plurality of dust removing plates are arranged at one end of the inner shaft, which is provided with the coil, each dust removing plate is obliquely arranged on the inner shaft, a positive electric field plate and a negative electric field plate are respectively arranged on the opposite end faces of every two adjacent dust removing plates, a positive electric field plate and a negative electric field plate are respectively arranged on each dust removing plate, and the positive electric field plate and the negative electric field plate are electrically connected with a control system. The air in the connecting pipe firstly impacts the conical end face, the spiral plate generates certain rotary power under the impact of the air, meanwhile, the air is dispersed through rotation, the coil heats the air, the dust removing plate rotates under the driving of the inner shaft, the dust removing plate extrudes the air when rotating, the dust removing plate plays a role of fan blades, the air flow rate is increased, and then the power loss of the air in the movement process is compensated, the end face of the air extruded by the dust removing plate is the end face provided with the positive electric field plate, electrons in the negative electric field plate break a potential barrier and move towards the positive electric field plate, and are combined with dust in the movement process, so that the dust is captured by the positive electric field plate, and the dust removal of the air is realized.
Every the spout has all been seted up on two side end faces of dust removal board, every equal slidable mounting has a slider in the spout, two the slider is mutually supported and is installed a cleaning roller, the cleaning roller is located dust removal board one side of installing the positive electric field board, cleaning roller and positive electric field board sliding connection, the cleaning roller is made by insulating material, and the scraper blade is installed to one side that the cleaning roller is close to the positive electric field board, the scraper blade is cleaned the positive electric field board. The spout provides the position for the installation of slider, two sliders are mutually supported and are installed a cleaning roller, the scraper blade laminating is on positive electric field plate, when the dust removal board moves interior axle below, the cleaning roller is under the effect of self gravity, from the one end cunning of dust removal board to the other end, make the scraper blade clean the dust removal board at the slip in-process, the one end of scraping the dust on the positive electric field plate, realize the cleanness of positive electric field plate, avoid the dust to glue on positive electric field plate and influence the use of positive electric field plate.
Every the dust removal inboard all sets up the dust passageway of taking out of L type, and the one end of taking out the dust passageway and being the L type is located one side of positive electric field board, the import department of taking out the dust passageway rotates and installs the baffle, when the cleaning roller is located the dust removal inboard and keeps away from one end at the axle, uses the slider as the centre of a circle, and the distance of cleaning roller centre of a circle to the slider center is the radius, the baffle is located the rotation orbit of cleaning roller. The baffle is arranged on the dust removing plate through a pin shaft and a torsion spring, when the cleaning roller is positioned at one end of the dust removing plate far away from the inner shaft, the cleaning roller performs circular motion by taking the slide block as the center of a circle and taking the distance from the center of the cleaning roller to the center of the slide block as a radius, the cleaning roller is abutted against the baffle to rotate on the dust extracting channel so as to open the dust extracting channel sealed by the baffle, a plurality of dust extracting channels are communicated with an external air pipeline through a pipeline and a support plate, the pipeline is positioned in the inner shaft and is arranged outside the isolation box through the support plate, when the dust extracting channel is opened, the dust on the scraper is extracted by negative pressure in the dust extracting channel so as to be extracted to the outside, thereby realizing the cleaning of the scraper and the outward discharge of the dust, when the dust removing plate is slowly positioned above the inner shaft along with the rotation of the inner shaft again, the cleaning roller slowly moves towards the direction of the inner shaft under the self gravity so as to keep the cleaning roller away from the baffle, thereby the baffle blocks the dust extraction passage again.
The part of rectifying includes the box, install in the box and rectify the pipe, rectify a tub one end and conveying pipe intercommunication, rectify a tub other end and conveyer pipe intercommunication, box and air pipeline pipe connection, rectify and seted up two air supply ports on the pipe, two air supply port divide into once air supply port and secondary air supply port, the air-out direction in air supply port and the air-out direction in secondary air supply port all are parallel with the tangential direction of rectifying a tub bending part. When the buggy is through crooked or the bending region, because of receiving the influence of centrifugal force and striking on the pipeline inner wall, and then cause the buggy to pile up and the pipeline jam, deviation correcting parts installs in crooked or the department of buckling, deviation correcting parts sprays the air along the tangential direction of pipeline inner wall many times, air is infused to the pipe of rectifying along the tangential direction of pipeline inner wall to one-time air supply mouth and secondary air supply mouth, increase the atmospheric pressure in the buggy outside, exert pressure to the buggy through the atmospheric pressure of reinforcing, make the buggy unable pipeline inner wall that is close to, make the buggy wrap up in the air and unable and contact with the pipe wall all the time, and then improve the transport efficiency of buggy.
The feeding part comprises a seal box, one end of the seal box is fixed with the lower end of the pulverized coal bunker, one side of the seal box is connected with an air inlet pipe, the other side of the seal box is connected with a feeding pipe, a feeding hopper is installed in the seal box, one end of the feeding hopper is connected with a discharge port of the pulverized coal bunker, the other end of the feeding hopper is connected with a feeding pipe, and one end of the feeding hopper runs through the feeding pipe. The air that the air-supply line carried gets into the feeding pipe through the seal box in, during the buggy in the buggy storehouse fell to the inlet pipe through the feeder hopper, the inlet pipe was located the middle part position of seal box, and the buggy that flows out in the inlet pipe that makes is located the middle part region of air, and then makes the buggy wrapped up in the middle part region of air.
The inside one end that is close to the conveying pipe of inlet pipe installs the increasing pressure ring, the one end inner wall that the conveying pipe was kept away from to the increasing pressure ring has seted up conical slip table. The change of booster ring internal diameter makes the air velocity through booster ring change, makes air velocity flow increase behind the booster ring, because the regional flow velocity grow in middle part of air for the regional air in air outside flows to the middle part region, and then makes the regional air in outside extrude the middle part region, thereby makes the buggy extruded in the middle part region and can't move the outside region of air, and then ensures that the buggy can not fall in the stand pipe when adding into the air.
Compared with the prior art, the invention has the following beneficial effects: the induced draft fan sends wind into the dust removal part, the dust removal part dries and removes dust to the air, and then clears away the moisture in the air, reduces the humidity of the air, avoids the coal dust to be attached to the inner wall of the pipeline, improves the mobility of the coal dust in the air, simultaneously, preheats the coal dust through the air with temperature rise, the feeding part sends the coal dust in the coal dust bin into the air, the deviation correction part is arranged at the bending or bending position of the pipeline, when the coal dust passes through the bending or bending area, the coal dust impacts the inner wall of the pipeline due to the influence of centrifugal force, and then causes the coal dust accumulation and the pipeline blockage, the deviation correction part is arranged at the bending or bending position, the deviation correction part sprays air for many times along the tangential direction of the inner wall of the pipeline, and further increases the air pressure outside the coal dust, the coal dust can not be close to the inner wall of the pipeline by applying pressure through the enhanced air pressure, and the coal dust can not be wrapped in the air all the time and can not be contacted with the pipe wall, thereby improving the conveying efficiency of the pulverized coal.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall frame structure of the present invention;
FIG. 2 is a front view of the internal structure of the insulation box of the present invention;
FIG. 3 is a left side view of the internal structure of the insulation box of the present invention;
FIG. 4 is a schematic perspective view of the connection between the inner shaft and the dust-removing plate according to the present invention;
FIG. 5 is a schematic view of the internal structure of the dust-removing plate of the present invention;
FIG. 6 is a schematic view of the dust removal plate of the present invention positioned below the inner shaft;
FIG. 7 is a schematic view of the feed tube of the present invention connected to a feed hopper;
FIG. 8 is a schematic view of the connection of the feed tube to the booster ring of the present invention;
FIG. 9 is a schematic flow diagram of the addition of pulverized coal to air in accordance with the present invention;
FIG. 10 is a schematic view of the structure of the deviation rectifying component of the present invention.
In the figure: 1. an induced draft fan; 101. connecting the pipe;
2. a dust removal component; 201. an isolation box; 202. a housing; 203. a magnet; 204. an inner shaft; 205. cutting the board; 206. a support plate; 207. a dust removal plate; 2071. a chute; 2072. a baffle plate; 208. a cleaning roller; 2081. a squeegee; 209. a positive electric field plate; 210. a negative electric field plate; 211. a baffle;
301. an air inlet pipe; 302. a feed pipe; 4. a pulverized coal bunker;
5. a feeding member; 501. a feed pipe; 502. a feed hopper; 503. a pressure increasing ring;
6. a deviation rectifying component; 601. a deviation rectifying pipe; 602. a primary air supply port; 603. a secondary air supply port;
7. a delivery pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, the present invention provides a technical solution:
the utility model provides a power plant is with having pneumatic conveyor who preheats dust removal function, pneumatic conveyor includes draught fan 1, dust removal part 2, air-supply line 301, buggy storehouse 4, conveying pipe 302, deviation correcting part 6 and conveyer pipe 7, draught fan 1 is through dust removal part 2 and air-supply line 301 intercommunication, feeding component 5 is installed to 4 lower extremes in buggy storehouse, 5 one end of feeding component and air-supply line 301 pipe connection, the 5 other ends of feeding component and conveying pipe 302 pipe connection, 6 one end of deviation correcting part and conveying pipe 302 pipe connection, the 6 other ends of deviation correcting part and conveyer pipe 7 pipe connection, conveyer pipe 7 sends into the buggy and burns burning furnace.
The dust removal component 2 comprises an isolation box 201, a shell 202 and a support plate 206, the induced draft fan 1 is communicated with the interior of the isolation box 201 through a connecting pipe 101, the shell 202 and the support plate 206 are both arranged in the isolation box 201, two guide plates 211 are arranged on two sides of the shell 202 in the isolation box 201, and the two guide plates 211 are mutually matched in the isolation box 201 to form a circular channel;
the supporting plate 206 is located on one side of the shell 202, which is far away from the connecting pipe 101, the magnet 203 is installed in the shell 202, the inner shaft 204 is installed on the supporting plate 206 in a rotating mode, one end of the inner shaft 204 is located in the shell 202, the sleeve pipe is installed on the inner shaft 204 located in the shell 202 and is not in contact with the shell 202, the plurality of cutting plates 205 are installed on the sleeve pipe, a conducting wire is installed on each cutting plate 205, conducting wires in the plurality of cutting plates 205 are connected in series, two conducting wires located at the head and tail positions are electrically connected with a control system, a coil is installed on the outer ring of one end, which is far away from the shell 202, of the inner shaft 204, and the coil is electrically connected with the control system.
The magnet 203 is divided into two magnets, the cutting plate 205 rotates in an impact manner of air infused in the connecting pipe 101, then a lead in the cutting plate 205 cuts a magnetic induction line and generates current, the control system rectifies the current and transmits the rectified current to a coil, the coil generates heat, the air is heated and dried by the generated heat, an included angle exists between the plate surface of each cutting plate 205 and the axis of the inner shaft 204, namely the cutting plate 205 is obliquely arranged on the inner shaft 204, and the cutting plate 205 drives the inner shaft 204 to rotate after being impacted by the air.
One end of the inner shaft 204 close to the connecting pipe 101 is conical, a plurality of spiral plates are mounted on the conical end face, air in the connecting pipe 101 firstly impacts the conical end face, the spiral plates generate certain rotary power under the impact of the air, and meanwhile, the air is dispersed through rotation.
A plurality of dust removing plates 207 are arranged at one end of the inner shaft 204 provided with the coil, each dust removing plate 207 is obliquely arranged on the inner shaft 204, a positive electric field plate 209 and a negative electric field plate 210 are respectively arranged on the opposite end surfaces of every two adjacent dust removing plates 207, a positive electric field plate 209 and a negative electric field plate 210 are arranged on each dust removing plate 207, and the positive electric field plate 209 and the negative electric field plate 210 are electrically connected with a control system.
The dust removal plate 207 rotates under the drive of the inner shaft 204, the dust removal plate 207 extrudes air when rotating, the dust removal plate 207 plays a role of a fan blade, the air flow rate is increased, the power loss of the air in the movement process is further compensated, the end face of the dust removal plate 207, which extrudes the air, is the end face provided with the positive electric field plate 209, electrons in the negative electric field plate 210 break a potential barrier and move towards the positive electric field plate 209, and are combined with dust in the movement process, so that the dust is captured by the positive electric field plate 209, and the dust removal of the air is realized.
Two side end faces of each dust removing plate 207 are provided with sliding grooves 2071, each sliding groove 2071 is internally provided with a sliding block in a sliding mode, the two sliding blocks are matched with each other to be provided with a cleaning roller 208, the cleaning roller 208 is positioned on one side of the dust removing plate 207 provided with the positive electric field plate 209, the cleaning roller 208 is connected with the positive electric field plate 209 in a sliding mode, the cleaning roller 208 is made of an insulating material, one side of the cleaning roller 208 close to the positive electric field plate 209 is provided with a scraper 2081, and the scraper 2081 cleans the positive electric field plate 209.
Every dust removal board 207 is inside all to set up the dust channel of taking out of L type, the one end of taking out the dust channel and being the L type is located one side of positive electric field board 209, the import department of taking out the dust channel rotates installs baffle 2072, a plurality of takes out the dust channel and passes through pipeline and backup pad intercommunication outside air pipe, the pipeline is arranged in interior axle 204 and installs outside shielded box 201 through backup pad 206, when cleaning roller 208 is located the dust removal board 207 and keeps away from on the one end of interior axle 204, use the slider as the centre of a circle, the distance of cleaning roller 208 centre of a circle to the slider center is the radius, baffle 2072 is located cleaning roller 208's rotation orbit.
The baffle 2072 is installed on the dust removing plate 207 through a pin shaft and a torsion spring, when the cleaning roller 208 is located at one end of the dust removing plate 207 away from the inner shaft 204, the cleaning roller 208 performs circular motion by taking a sliding block (in this embodiment, the sliding block is a cylinder, one end of the cylinder is clamped in the sliding groove 2071, and the sliding block is in sliding connection with the sliding groove 2071) as a circle center, a distance from the circle center of the cleaning roller to the center of the sliding block is a radius, the cleaning roller 208 abuts against the baffle 2072, the baffle 2072 rotates on the dust extraction channel, the dust extraction channel sealed by the baffle 2072 is opened, when the dust extraction channel is opened, negative pressure in the dust extraction channel extracts dust on the scraper 2081, the dust is extracted to the outside, and cleaning of the scraper 2081 and the dust is discharged outside;
when the dust removing plate 207 is slowly located above the inner shaft 204 again along with the rotation of the inner shaft 204, the cleaning roller 208 slowly moves towards the inner shaft 204 under the self-gravity, so that the cleaning roller 208 is far away from the baffle, and the baffle 2072 blocks the dust extraction passage again.
The feeding part 5 comprises a sealing box, one end of the sealing box is fixed with the lower end of the coal powder bin 4, one side of the sealing box is connected with the air inlet pipe 301, the other side of the sealing box is connected with the feeding pipe 302, a feeding hopper 502 is installed in the sealing box, one end of the feeding hopper 502 is connected with a discharge hole of the coal powder bin 4, the other end of the feeding hopper 502 is connected with a feeding pipe 501, and one end of the feeding hopper 502 penetrates through the feeding pipe 501.
A pressurizing ring 503 is installed at one end, close to the feeding pipe 302, inside the feeding pipe 501, and a conical sliding table is arranged on the inner wall of one end, far away from the feeding pipe 302, of the pressurizing ring 503.
Air conveyed by the air inlet pipe 301 enters the feeding pipe 302 through the seal box, pulverized coal in the pulverized coal bin 4 falls into the feeding pipe 501 through the feed hopper 502, the feeding pipe 501 is located in the middle of the seal box, so that pulverized coal flowing out of the feeding pipe 501 is located in the middle area of the air, and the pulverized coal is wrapped in the middle area of the air.
Due to the change of the inner diameter of the booster ring 503, the air flow velocity passing through the booster ring 503 is changed, so that the air flow velocity is increased after passing through the booster ring 503, and the air in the outer area of the air flows to the middle area due to the increase of the flow velocity of the middle area of the air, and then the air in the outer area extrudes the middle area, so that the pulverized coal is extruded to the middle area and cannot move to the outer area of the air, and the pulverized coal is prevented from falling into the sealing tube when being added into the air.
The deviation rectifying component 6 comprises a box body, a deviation rectifying pipe 601 is installed in the box body, one end of the deviation rectifying pipe 601 is communicated with the feeding pipe 302, the other end of the deviation rectifying pipe 601 is communicated with the conveying pipe 7, the box body is connected with an air pipeline, two air supplementing ports are arranged on the deviation rectifying pipe 601 and divided into a primary air supplementing port 602 and a secondary air supplementing port 603, and the air outlet direction of the primary air supplementing port 602 and the air outlet direction of the secondary air supplementing port 603 are parallel to the tangential direction of the bent portion of the deviation rectifying pipe 601.
The deviation rectifying component 6 is installed at the bent or bent part of the pipeline, the deviation rectifying component 6 sprays air for many times along the tangential direction of the inner wall of the pipeline, the primary air supplementing port 602 and the secondary air supplementing port 603 infuse air into the deviation rectifying pipe 601 along the tangential direction of the inner wall of the pipeline, the air pressure outside the pulverized coal is increased, the pulverized coal cannot be close to the inner wall of the pipeline due to the fact that the pulverized coal is pressed through the enhanced air pressure, the pulverized coal is wrapped in the air all the time and cannot be in contact with the pipe wall, and therefore the conveying efficiency of the pulverized coal is improved.
The working principle of the invention is as follows:
an induced draft fan 1 extracts external air and injects the air into an isolation box 201 infused through a connecting pipe 101, the air impacts on a conical end face, a spiral plate generates certain rotary power under the impact of the air and disperses the air through rotation, the air flows through a gap between a sleeve and a shell 202, in the flowing process, a cutting plate 205 is impacted, the cutting plate 205 cuts a magnetic induction wire and drives an inner shaft 204 to rotate, and current in the wire flows into a control system.
The inner shaft 204 drives the dust removal plate 207 to rotate, the coil on the inner shaft 204 generates heat after being electrified, the generated heat heats and dehumidifies air, the dust removal plate 207 extrudes the air in the rotating process, the flowing of the air is increased, meanwhile, electrons in the negative electric field plate 210 break a potential barrier and move towards the positive electric field plate 209, and are combined with dust in the moving process, so that the dust is captured by the positive electric field plate 209, and the dust removal of the air is realized.
When the dust removing plate 207 moves below the inner shaft 204, the cleaning roller 208 slides from one end of the dust removing plate 207 to the other end (moves from one end of the dust removing plate 207 close to the inner shaft 204 to one end of the dust removing plate 207 far from the inner shaft 204) under the action of self gravity, so that the scraper 2081 cleans the dust removing plate 207 in the sliding process, and scrapes off one end of dust on the positive electric field plate 209 to realize the cleaning of the positive electric field plate 209.
When the cleaning roller 208 is positioned at one end of the dust removing plate 207 far away from the inner shaft 204, the distance from the center of the cleaning roller to the center of the slider is taken as a radius, the cleaning roller 208 performs circular motion, the cleaning roller 208 abuts against the baffle 2072, the baffle 2072 rotates on the dust extraction channel, the dust extraction channel sealed by the baffle 2072 is opened, when the dust extraction channel is opened, negative pressure in the dust extraction channel extracts dust on the scraper 2081, the dust is extracted to the outside, and therefore cleaning of the scraper 2081 and discharge of the dust are achieved;
when the dust removing plate 207 is slowly located above the inner shaft 204 again along with the rotation of the inner shaft 204, the cleaning roller 208 slowly moves towards the inner shaft 204 under the self-gravity, so that the cleaning roller 208 is far away from the baffle, and the baffle 2072 blocks the dust extraction passage again.
Air conveyed by the air inlet pipe 301 enters the feeding pipe 302 through the seal box, pulverized coal in the pulverized coal bin 4 falls into the feeding pipe 501 through the feed hopper 502, the feeding pipe 501 is located in the middle of the seal box, so that pulverized coal flowing out of the feeding pipe 501 is located in the middle area of the air, and the pulverized coal is wrapped in the middle area of the air.
Due to the change of the inner diameter of the booster ring 503, the air flow velocity passing through the booster ring 503 is changed, so that the air flow velocity is increased after passing through the booster ring 503, and the air in the outer area of the air flows to the middle area due to the increase of the flow velocity of the middle area of the air, and then the air in the outer area extrudes the middle area, so that the pulverized coal is extruded to the middle area and cannot move to the outer area of the air, and the pulverized coal is prevented from falling into the sealing tube when being added into the air.
The deviation rectifying component 6 sprays air for many times along the tangential direction of the inner wall of the pipeline, when the pulverized coal moves to the position of the deviation rectifying pipe 601, the primary air supplementing opening 602 and the secondary air supplementing opening 603 infuse air into the deviation rectifying pipe 601 along the tangential direction of the inner wall of the pipeline, the air pressure outside the pulverized coal is increased, the pulverized coal is pressed by the enhanced air pressure, the pulverized coal cannot be close to the inner wall of the pipeline, the pulverized coal is wrapped in the air all the time and cannot be contacted with the pipe wall, and the conveying efficiency of the pulverized coal is further improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a power plant is with pneumatic conveyor who has preheating dust removal function which characterized in that: pneumatic conveyor includes draught fan (1), dust removal part (2), air-supply line (301), buggy storehouse (4), conveying pipe (302), part of rectifying (6) and conveyer pipe (7), draught fan (1) is through dust removal part (2) and air-supply line (301) intercommunication, feeding part (5) are installed to buggy storehouse (4) lower extreme, feeding part (5) one end and air-supply line (301) pipe connection, the feeding part (5) other end and conveying pipe (302) pipe connection, part of rectifying (6) one end and conveying pipe (302) pipe connection rectify, the part of rectifying (6) other end and conveyer pipe (7) pipe connection, conveyer pipe (7) are sent into the burning furnace with the buggy.
2. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 1, characterized in that: the dust removal component (2) comprises an isolation box (201), a shell (202) and a support plate (206), the induced draft fan (1) is communicated with the interior of the isolation box (201) through a connecting pipe (101), the shell (202) and the support plate (206) are both installed in the isolation box (201), two guide plates (211) are installed on two sides of the shell (202) in the isolation box (201), and the two guide plates (211) are mutually matched to form a circular channel in the isolation box (201);
the supporting plate (206) is located on one side, away from the connecting pipe (101), of the shell (202), a magnet (203) is installed in the shell (202), an inner shaft (204) is installed on the supporting plate (206) in a rotating mode, one end of the inner shaft (204) is located in the shell (202), a sleeve is installed on the inner shaft (204) located in the shell (202) and is not in contact with the shell (202), a plurality of cutting plates (205) are installed on the sleeve, a conducting wire is installed on each cutting plate (205), conducting wires in the plurality of cutting plates (205) are connected in series, two conducting wires located at the head position and the tail position are electrically connected with a control system, a coil is installed on the outer ring of one end, away from the shell (202), of the inner shaft (204), and the coil is electrically connected with the control system.
3. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 2, characterized in that: one end, close to the connecting pipe (101), of the inner shaft (204) is conical, a plurality of spiral plates are mounted on the end face of the cone, a plurality of dust removing plates (207) are mounted at one end, provided with a coil, of the inner shaft (204), each dust removing plate (207) is obliquely mounted on the inner shaft (204), a positive electric field plate (209) and a negative electric field plate (210) are mounted on the opposite end faces of every two adjacent dust removing plates (207), a positive electric field plate (209) and a negative electric field plate (210) are mounted on each dust removing plate (207), and the positive electric field plate (209) and the negative electric field plate (210) are electrically connected with a control system.
4. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 3, characterized in that: every spout (2071), every have all been seted up on two side end faces of dust removal board (207) equal slidable mounting has the slider in spout (2071), two the slider is mutually supported and is installed one cleaning roller (208), cleaning roller (208) are located dust removal board (207) one side of installing positive electric field plate (209), cleaning roller (208) and positive electric field plate (209) sliding connection, and cleaning roller (208) are made by insulating material, and one side that cleaning roller (208) are close to positive electric field plate (209) is installed scraper blade (2081), scraper blade (2081) are cleaned positive electric field plate (209).
5. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 4, characterized in that: every dust removal board (207) inside all seted up the dust passageway of taking out of L type, the one end of taking out the dust passageway and being the L type is located one side of positive electric field board (209), the import department of taking out the dust passageway rotates and installs baffle (2072), when cleaning roller (208) are located dust removal board (207) and keep away from interior axle (204) one end on, use the slider as the centre of a circle, the distance of cleaning roller (208) centre of a circle to the slider center is the radius, baffle (2072) are located the rotation orbit of cleaning roller (208).
6. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 1, characterized in that: the part of rectifying (6) includes the box, install in the box and rectify tub (601), rectify tub (601) one end and conveying pipe (302) intercommunication, rectify tub (601) other end and conveyer pipe (7) intercommunication, the box is connected with air pipeline, rectify and seted up two air supply openings on tub (601), two air supply opening divide into air supply opening (602) and secondary air supply opening (603) once, the air-out direction of air supply opening (602) and the air-out direction of secondary air supply opening (603) all are parallel with the tangential direction of rectifying tub (601) bending part.
7. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 1, characterized in that: feeding part (5) are including the seal box, seal box one end is fixed with buggy storehouse (4) lower extreme, and seal box one side is connected with air-supply line (301), and the seal box opposite side is connected with conveying pipe (302), installs feeder hopper (502) in the seal box, feeder hopper (502) one end is connected with the discharge gate in buggy storehouse (4), and the other end of feeder hopper (502) is connected with inlet pipe (501), and inlet pipe (501) are run through to the one end of feeder hopper (502).
8. The pneumatic conveying device with the preheating and dust removing functions for the power plant according to claim 7, characterized in that: the material inlet pipe (501) is inside to be close to the one end of conveying pipe (302) and to install increase clamping ring (503), the one end inner wall that conveying pipe (302) was kept away from in increase clamping ring (503) has seted up conical slip table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210058930.7A CN114590596B (en) | 2022-01-19 | 2022-01-19 | Pneumatic conveying device with preheating and dedusting functions for power plant |
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| CN202210058930.7A CN114590596B (en) | 2022-01-19 | 2022-01-19 | Pneumatic conveying device with preheating and dedusting functions for power plant |
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| CN114590596B CN114590596B (en) | 2023-09-15 |
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