CN114459047A - Coal powder input device of gas-fired boiler - Google Patents

Coal powder input device of gas-fired boiler Download PDF

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Publication number
CN114459047A
CN114459047A CN202210123511.7A CN202210123511A CN114459047A CN 114459047 A CN114459047 A CN 114459047A CN 202210123511 A CN202210123511 A CN 202210123511A CN 114459047 A CN114459047 A CN 114459047A
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CN
China
Prior art keywords
coal
gear
rotating rod
crushing
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210123511.7A
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Chinese (zh)
Inventor
凌少东
李东
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Zhangjiagang Wilford Thermal Co ltd
Original Assignee
Zhangjiagang Wilford Thermal Co ltd
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Filing date
Publication date
Application filed by Zhangjiagang Wilford Thermal Co ltd filed Critical Zhangjiagang Wilford Thermal Co ltd
Priority to CN202210123511.7A priority Critical patent/CN114459047A/en
Publication of CN114459047A publication Critical patent/CN114459047A/en
Pending legal-status Critical Current

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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/22—Crushing mills with screw-shaped crushing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/04—Crushing or disintegrating by disc mills with coaxial discs with concentric circles of intermeshing teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/16—Driving mechanisms
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/10—Pulverizing
    • F23K2201/1003—Processes to make pulverulent fuels

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention is suitable for the technical field of gas boilers, and particularly relates to a coal powder input device of a gas boiler, which comprises a box body, wherein a sieve plate is arranged in the box body, a primary crushing mechanism is arranged on one side of the sieve plate, push plates are arranged on two sides of the primary crushing mechanism, one end of each push plate is connected with a translation mechanism, a grinding mechanism is arranged on the other side of the sieve plate, and the grinding mechanism is connected with a conveying mechanism; the translation mechanism is used for driving the push plate to reciprocate so as to accelerate the coal blocks to enter the grinding mechanism; the grinding mechanism is used for grinding the crushed coal blocks so as to change the crushed coal blocks into coal powder; the device crushes the coal briquettes through the primary crushing mechanism, wherein push plates are arranged on two sides of the primary crushing mechanism, and the coal briquettes are extruded through the push plates, so that the coal briquettes enter the grinding mechanism at an accelerated speed, and the working efficiency is high; the crushed coal blocks are ground by the grinding mechanism, so that the coal blocks form coal powder, the grinding effect is good, and the coal powder is convenient to discharge.

Description

Coal powder input device of gas-fired boiler
Technical Field
The invention relates to the technical field of gas-fired boilers, in particular to a coal powder input device of a gas-fired boiler.
Background
The gas boiler is the most economical compared with the oil boiler and the electric boiler, so most people select the gas boiler as boiler equipment for steam, heating and bathing, wherein a coal mill is one of main parts of the gas boiler and is used for grinding lump coal into powdered coal so as to enable the lump coal to be fully combusted.
The most common way of the existing grinder when crushing and grinding the coal is to crush the coal primarily by a crushing knife roller and then crush the coal secondarily by a crushing blade, thereby forming coal powder.
However, the coal briquette is processed by matching the crushing knife roll and the crushing blade, the time consumption is long, the processing efficiency is low, the pulverized coal is not sufficiently crushed, the processing effect is poor, the output force on the pulverized coal is low, and the pulverized coal is not convenient to discharge.
Disclosure of Invention
The invention aims to provide a coal powder input device of a gas-fired boiler, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the coal powder input device of the gas-fired boiler comprises a box body, wherein a sieve plate is arranged inside the box body, a primary crushing mechanism is arranged on one side of the sieve plate, push plates are arranged on two sides of the primary crushing mechanism, one end of each push plate is connected with a translation mechanism, a grinding mechanism is arranged on the other side of the sieve plate, and the grinding mechanism is connected with a conveying mechanism;
the primary crushing mechanism is used for crushing coal blocks;
the translation mechanism is used for driving the push plate to reciprocate so as to accelerate the coal blocks to enter the grinding mechanism;
the grinding mechanism is used for grinding the crushed coal blocks so as to change the crushed coal blocks into coal powder;
the conveying mechanism is used for conveying pulverized coal.
Further: broken mechanism includes the motor, the output of motor is equipped with first rotation pole, first rotation pole surface is equipped with the broken blade of spiral, be equipped with the feeder hopper on the lateral wall of box, the feeder hopper communicates with each other with the inner chamber of box.
Further: the translation mechanism comprises a first gear, a first rotating rod penetrates through the first gear, a second gear is meshed with the first gear, one side of the second gear is rotatably connected with the box body through a rotating shaft, the other side of the second gear is provided with a protrusion, a limiting frame is arranged outside the protrusion, the limiting frame is connected with a connecting rod, and the connecting rod is connected with the baffle.
Further: the inside of box is equipped with the baffle, the inside of baffle is equipped with the passageway, the connecting rod runs through the passageway and rather than sliding connection, the feeder hopper is located the both sides of baffle respectively with first gear.
Further: the grinding mechanism comprises a rotary table, the rotary table is connected with a first rotating rod, a groove is formed in an outlet of the grinding mechanism, the rotary table is located in the groove and is connected with the groove in a rotating mode, a first through hole is formed in the rotary table, and a second through hole is formed in the groove.
Further: conveying mechanism includes the conveyer pipe, the one end of conveyer pipe is equipped with out the powder mouth, the other end of conveyer pipe is equipped with the fan blade, the fan blade is connected with the second dwang, the second dwang is connected with drive mechanism, drive mechanism is used for providing power for the second dwang.
Further: drive mechanism includes the gear shaft with second gear engagement, the gear shaft runs through the box and is connected rather than rotating, the second dwang runs through the conveyer pipe and is connected rather than rotating, the one end that the conveyer pipe was run through to the dwang is equipped with the third gear, the third gear is connected through the chain with the gear shaft, the chain is connected with the broken mechanism of second, the broken mechanism of second grade is used for improving the crushing effect to the coal cinder.
Further: the second grade crushing mechanism includes broken blade, the chain meshing has the fourth gear, fourth gear connection has the third dwang, the third dwang runs through the box and is connected rather than rotating, the third dwang is connected with broken blade.
Further: broken blade is connected with the third dwang through the hollow tube, the one end and the broken blade fixed connection of hollow tube, the other end of hollow tube runs through the push pedal and is connected rather than rotating, the third dwang is located the inside of hollow tube and rather than sliding connection, be equipped with the spacing groove on the inner wall of hollow tube, the surface of third dwang is equipped with the stopper, spacing groove piece and spacing groove sliding connection.
Compared with the prior art, the invention has the beneficial effects that: a coal powder input device of a gas boiler crushes coal blocks through a primary crushing mechanism, wherein push plates are arranged on two sides of the primary crushing mechanism, and the coal blocks are extruded through the push plates, so that the coal blocks enter the grinding mechanism in an accelerated manner, and the working efficiency is high; the crushed coal blocks are ground by the grinding mechanism, so that the coal blocks form coal powder, the grinding effect is good, and the coal powder is convenient to discharge.
Drawings
FIG. 1 is a front view of an overall structure of a pulverized coal input device of a gas boiler.
FIG. 2 is a bottom view of a translation mechanism of a pulverized coal input device of a gas-fired boiler.
FIG. 3 is a schematic view of a grinding mechanism of a pulverized coal input device of a gas boiler.
FIG. 4 is a front view of a two-stage crushing mechanism of a coal powder input device of a gas-fired boiler.
FIG. 5 is a sectional view of a third rotating rod and a hollow tube of a pulverized coal input device of a gas-fired boiler.
In the figure: 1-box body, 2-sieve plate, 3-push plate, 4-first-stage crushing mechanism, 401-motor, 402-first rotating rod, 403-spiral crushing blade, 404-feed hopper, 5-translation mechanism, 501-first gear, 502-second gear, 503-rotating shaft, 504-protrusion, 505-limiting frame, 506-connecting rod, 507-clapboard, 508-channel, 6-grinding mechanism, 601-rotating disc, 602-groove, 603-first through hole, 604-second through hole, 7-conveying mechanism, 701-conveying pipe, 702-powder outlet, 703-fan blade, 704-second rotating rod, 8-transmission mechanism, 801-gear shaft, 802-chain, 803-third gear, 9-second-stage crushing mechanism, 901-crushing blade, 902-hollow tube, 903-third rotating rod, 904-fourth gear, 905-spacing groove and 906-spacing block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
In this embodiment, please refer to fig. 1, a coal powder input device for a gas-fired boiler comprises a box body 1, a sieve plate 2 is arranged inside the box body 1, a primary crushing mechanism 4 is arranged on one side of the sieve plate 2, push plates 3 are arranged on two sides of the primary crushing mechanism 4, one end of each push plate 3 is connected with a translation mechanism 5, a grinding mechanism 6 is arranged on the other side of the sieve plate 2, and the grinding mechanism 6 is connected with a conveying mechanism 7;
the primary crushing mechanism 4 is used for crushing coal blocks;
the translation mechanism 5 is used for driving the push plate 3 to reciprocate so as to accelerate the coal blocks to enter the grinding mechanism 6;
the grinding mechanism 6 is used for grinding the crushed coal blocks so as to change the crushed coal blocks into coal powder;
the conveying mechanism 7 is used for conveying pulverized coal.
In this embodiment, this device carries out during the buggy is imported, at first pour the coal cinder into the inside of one-level crushing mechanism 4, carry out preliminary smashing by one-level crushing mechanism 4 to the coal cinder, translation mechanism 5 drives push pedal 3 reciprocating motion when the coal cinder is broken, push pedal 3 reciprocating motion extrudees the coal cinder simultaneously, thereby make the coal cinder move to the center of box 1, the crushing effect of crushing mechanism to the coal cinder has been improved on the one hand, on the other hand accelerates the coal cinder and enters into the inside of grinding mechanism 6 through sieve 2, when the coal cinder enters into grinding mechanism 6 inside, grind the coal cinder through grinding mechanism 6, thereby make the coal cinder become the buggy, the inside of conveying mechanism 7 is entered into to last buggy, carry by conveying mechanism 7.
In another embodiment, referring to fig. 1, the crushing mechanism includes a motor 401, an output end of the motor 401 is provided with a first rotating rod 402, a surface of the first rotating rod 402 is provided with a spiral crushing blade 403, a side wall of the box body 1 is provided with a feeding hopper 404, and the feeding hopper 404 is communicated with an inner cavity of the box body 1.
In this embodiment, when carrying out the breakage to the coal cinder, pour the coal cinder into rabbling mechanism's inside through feeder hopper 404, then drive first rotation pole 402 through motor 401 and rotate, first rotation pole 402 drives the spiral crushing blade 403 on its surface and rotates, carries out the breakage to the coal cinder through spiral crushing blade 403, and crushing effect is better, and wherein crushing mechanism still can drive the crushing roller with motor 401 and rotate, carries out the breakage by the crushing roller and replaces to the coal cinder.
In another embodiment, referring to fig. 1-2, the translation mechanism 5 includes a first gear 501, the first rotating rod 402 penetrates through the first gear 501, the first gear 501 is engaged with a second gear 502, one side of the second gear 502 is rotatably connected to the box 1 through a rotating shaft 503, the other side of the second gear 502 is provided with a protrusion 504, a limiting frame 505 is disposed outside the protrusion 504, the limiting frame 505 is connected to a connecting rod 506, and the connecting rod 506 is connected to the baffle.
In this embodiment, the first rotating rod 402 rotates while driving the first gear 501 to rotate, the first gear 501 drives the second gear 502 to rotate, the second gear 502 rotates around the rotating shaft 503, the second gear 502 rotates while driving the protrusion 504 on the surface to rotate, the protrusion 504 drives the limiting frame 505 to reciprocate, the limiting frame 505 reciprocates while driving the push plate 3 to reciprocate through the connecting rod 506, and further extrudes the coal briquette, thereby improving the rate of the coal briquette entering the grinding mechanism 6, the motor 401 drives the push plate 3 to reciprocate, and the energy is saved, wherein the telescopic assembly can be replaced by an electric push rod, one end of the push rod is connected with the connecting rod 506, and the connecting rod 506 drives the push plate 3 to move.
In another embodiment, referring to fig. 1, a partition 507 is provided inside the box 1, a channel 508 is provided inside the partition 507, the connecting rod 506 penetrates the channel 508 and is slidably connected thereto, and the feeding hopper 404 and the first gear 501 are respectively located at two sides of the partition 507.
In this embodiment, baffle 507 has a barrier effect to the coal cinder, and the effectual influence that the coal cinder caused translation mechanism 5 when having prevented that crushing mechanism from carrying out the breakage to the coal cinder.
In another embodiment, referring to fig. 3, the grinding mechanism 6 includes a rotating disc 601, the rotating disc 601 is connected to the first rotating rod 402, a groove 602 is disposed at an outlet of the grinding mechanism 6, the rotating disc 601 is located inside the groove 602 and is rotatably connected thereto, a first through hole 603 is disposed on the rotating disc 601, and a second through hole 604 is disposed inside the groove 602.
In this embodiment, first rotation pole 402 pivoted drives carousel 601 and rotates simultaneously, carousel 601 has played a grinding effect to the coal cinder through the cooperation with recess 602, thereby make it become the buggy, only when first through-hole 603 and second through-hole 604 lie in same axis, the inside that conveying mechanism 7 was just can enter into to the buggy, the volume size of buggy has been guaranteed in setting up of first through-hole 603 and second through-hole 604, wherein second through-hole 604 can set up to a plurality ofly in order to improve out powder efficiency, carousel 601 is driven by motor 401, the energy has been practiced thrift, grinding mechanism 6 still can be replaced with the multiunit abrasive sheet in addition, make the coal cinder become the buggy through the repeated friction between the abrasive sheet.
In another embodiment, referring to fig. 1, the conveying mechanism 7 includes a conveying pipe 701, one end of the conveying pipe 701 is provided with a powder outlet 702, the other end of the conveying pipe 701 is provided with a fan blade 703, the fan blade 703 is connected to a second rotating rod 704, the second rotating rod 704 is connected to a transmission mechanism 8, and the transmission mechanism 8 is used for providing power for the second rotating rod 704.
In this embodiment, the pulverized coal enters the conveying pipe 701 through the grinding mechanism 6, at this time, the transmission mechanism 8 drives the second rotating rod 704 to rotate, the second rotating rod 704 drives the fan blade 703 to rotate, the fan blade 703 promotes the pulverized coal to move towards the direction of the powder outlet 702 on one hand, and has a diffusion effect on the pulverized coal on the other hand, so that the pulverized coal agglomeration phenomenon is avoided, wherein the conveying mechanism 7 can also be replaced by a fan.
In another embodiment, referring to fig. 1, the transmission mechanism 8 includes a gear shaft 801 engaged with the second gear 502, the gear shaft 801 penetrates through the box body 1 and is rotatably connected to the box body 1, the second rotating rod 704 penetrates through the conveying pipe 701 and is rotatably connected to the conveying pipe 701, a third gear 803 is disposed at one end of the rotating rod penetrating through the conveying pipe 701, the third gear 803 is connected to the gear shaft 801 through a chain 802, the chain 802 is connected to a second crushing mechanism, and the secondary crushing mechanism 9 is configured to improve a crushing effect on the coal briquettes.
In this embodiment, the second gear 502 rotates and simultaneously drives the gear shaft 801 to rotate, the gear shaft 801 drives the third gear 803 to rotate through the chain 802, the third gear 803 drives the fan blade 703 to rotate through the second rotating rod 704, the power for rotating the fan blade 703 is finally provided by the motor 401, the energy is saved, and the transmission mechanism 8 can be replaced by a belt and a belt pulley.
In another embodiment, referring to fig. 4-5, the secondary crushing mechanism 9 includes a crushing blade 901, the chain 802 is engaged with a fourth gear 904, the fourth gear 904 is connected with a third rotating rod 903, the third rotating rod 903 penetrates through the box 1 and is rotatably connected with the box, and the third rotating rod 903 is connected with the crushing blade 901.
In this embodiment: the chain 802 drives the fourth gear 904 to rotate, the fourth gear 904 drives the crushing blade 901 to rotate through the third rotating rod 903, the coal briquette is crushed through the crushing blade 901, the crushing effect on the coal briquette is further improved, the crushing efficiency is high, the rotating power of the crushing blade 901 is finally provided by the motor 401, the energy is saved, and the secondary crushing mechanism can also be replaced by directly driving the crushing blade 901 to rotate through the motor.
In another embodiment, referring to fig. 4-5, the crushing blade 901 is connected to the third rotating rod 903 through a hollow tube 902, one end of the hollow tube 902 is fixedly connected to the crushing blade 901, the other end of the hollow tube 902 penetrates through the push plate 3 and is rotatably connected thereto, the third rotating rod 903 is located inside the hollow tube 902 and is slidably connected thereto, a limiting groove 905 is formed in the inner wall of the hollow tube 902, a limiting block 906 is formed on the surface of the third rotating rod 903, and the limiting groove 905 is slidably connected to the limiting groove 905.
In this embodiment, push pedal 3 reciprocating motion drives broken blade 901 reciprocating motion through hollow tube 902 simultaneously, and third dwang 903 passes through stopper 906 and the cooperation of spacing groove 905 and drives hollow tube 902 and rotate, and then drives broken blade 901 and rotate to make broken blade 901 still be concertina movement in the pivoted, improved the crushing effect to the coal cinder once more, crushing efficiency is higher.
The implementation principle is as follows: when the device inputs coal blocks, a motor 401 is started, the motor 401 drives a first rotating rod 402 to rotate, the first rotating rod 402 drives a spiral crushing blade 403 on the surface of the first rotating rod to rotate, the coal blocks are primarily crushed through the spiral crushing blade 403, the crushed coal blocks enter the grinding mechanism 6 through screening of a screen plate 2, the first rotating rod 402 drives a second gear 502 to rotate through a first gear 501 while rotating, the second gear 502 drives a protrusion 504 on the surface to rotate while rotating, the protrusion 504 drives a limiting frame 505 to reciprocate, the limiting frame 505 drives a push plate 3 to reciprocate through a connecting rod 506 while reciprocating, further, the coal blocks are extruded, the rate of the coal blocks entering the grinding mechanism 6 is increased, the first rotating rod 402 drives a rotating disc 601 to rotate while rotating, the rotating disc 601 plays a grinding role on the coal blocks through matching with a groove 602, therefore, the pulverized coal is changed into pulverized coal, the pulverized coal enters the hollow pipe 902 through the first through hole 603 and the second through hole 604, the second gear 502 rotates and simultaneously drives the gear shaft 801 to rotate, the gear shaft 801 drives the third gear 803 to rotate through the chain 802, the third gear 803 drives the fan blade 703 to rotate through the second rotating rod 704, the fan blade 703 is arranged to enable the pulverized coal to move towards the direction of the powder outlet 702 on one hand, and has a diffusion effect on the pulverized coal on the other hand, and the pulverized coal agglomeration phenomenon is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A coal powder input device of a gas boiler comprises a box body; the box is characterized in that a sieve plate is arranged in the box body, a primary crushing mechanism is arranged on one side of the sieve plate, push plates are arranged on two sides of the primary crushing mechanism, one end of each push plate is connected with a translation mechanism, a grinding mechanism is arranged on the other side of the sieve plate, and the grinding mechanism is connected with a conveying mechanism;
the primary crushing mechanism is used for crushing coal blocks;
the translation mechanism is used for driving the push plate to reciprocate so as to accelerate the coal blocks to enter the grinding mechanism;
the grinding mechanism is used for grinding the crushed coal blocks so as to change the crushed coal blocks into coal powder;
the conveying mechanism is used for conveying pulverized coal.
2. The coal powder input device of the gas-fired boiler as recited in claim 1, wherein the crushing mechanism comprises a motor, the output end of the motor is provided with a first rotating rod, the surface of the first rotating rod is provided with a spiral crushing blade, the side wall of the box body is provided with a feed hopper, and the feed hopper is communicated with the inner cavity of the box body.
3. The coal powder input device of the gas-fired boiler as recited in claim 2, wherein the translation mechanism comprises a first gear, the first rotating rod penetrates through the first gear, the first gear is engaged with a second gear, one side of the second gear is rotatably connected with the box body through a rotating shaft, the other side of the second gear is provided with a protrusion, a limiting frame is arranged outside the protrusion, the limiting frame is connected with a connecting rod, and the connecting rod is connected with the baffle.
4. The coal powder feeding device for the gas-fired boiler as recited in claim 3, wherein a partition is provided inside the casing, a passage is provided inside the partition, the connecting rod penetrates the passage and is slidably connected with the passage, and the feeding hopper and the first gear are respectively provided at both sides of the partition.
5. The coal powder feeding device for the gas-fired boiler of claim 2, wherein the grinding mechanism comprises a rotary table, the rotary table is connected with the first rotating rod, a groove is formed at an outlet of the grinding mechanism, the rotary table is located inside the groove and is rotatably connected with the groove, a first through hole is formed in the rotary table, and a second through hole is formed in the groove.
6. The coal powder input device of the gas-fired boiler according to claim 3, wherein the conveying mechanism comprises a conveying pipe, one end of the conveying pipe is provided with a powder outlet, the other end of the conveying pipe is provided with a fan blade, the fan blade is connected with a second rotating rod, the second rotating rod is connected with a transmission mechanism, and the transmission mechanism is used for providing power for the second rotating rod.
7. The coal powder input device of the gas-fired boiler according to claim 6, wherein the transmission mechanism comprises a gear shaft meshed with a second gear, the gear shaft penetrates through the box body and is rotatably connected with the box body, the second rotating rod penetrates through the conveying pipe and is rotatably connected with the conveying pipe, a third gear is arranged at one end of the rotating rod, which penetrates through the conveying pipe, and is connected with the gear shaft through a chain, the chain is connected with a second crushing mechanism, and the second crushing mechanism is used for improving the crushing effect on the coal blocks.
8. The coal powder input device of the gas-fired boiler according to claim 7, wherein the secondary crushing mechanism comprises a crushing blade, the chain is engaged with a fourth gear, the fourth gear is connected with a third rotating rod, the third rotating rod penetrates through the box body and is rotatably connected with the box body, and the third rotating rod is connected with the crushing blade.
9. The pulverized coal input device for the gas-fired boiler according to claim 8, wherein the crushing blade is connected with a third rotating rod through a hollow tube, one end of the hollow tube is fixedly connected with the crushing blade, the other end of the hollow tube penetrates through the push plate and is rotatably connected with the push plate, the third rotating rod is located inside the hollow tube and is slidably connected with the hollow tube, a limiting groove is formed in the inner wall of the hollow tube, a limiting block is arranged on the surface of the third rotating rod, and the limiting groove block is slidably connected with the limiting groove.
CN202210123511.7A 2022-02-10 2022-02-10 Coal powder input device of gas-fired boiler Pending CN114459047A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116085788A (en) * 2023-02-11 2023-05-09 泰山集团股份有限公司 Circulating fluidized bed boiler feeding system suitable for various solid waste fuels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116085788A (en) * 2023-02-11 2023-05-09 泰山集团股份有限公司 Circulating fluidized bed boiler feeding system suitable for various solid waste fuels

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