CN112007734B - Coal crushing device for thermal power generation - Google Patents
Coal crushing device for thermal power generation Download PDFInfo
- Publication number
- CN112007734B CN112007734B CN202010747065.8A CN202010747065A CN112007734B CN 112007734 B CN112007734 B CN 112007734B CN 202010747065 A CN202010747065 A CN 202010747065A CN 112007734 B CN112007734 B CN 112007734B
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- CN
- China
- Prior art keywords
- crushing
- controller
- motor
- coal
- thermal power
- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 43
- 238000010248 power generation Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 15
- 238000010298 pulverizing process Methods 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
- B02C19/005—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) the materials to be pulverised being disintegrated by collision of, or friction between, the material particles
-
- 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
- B02C23/02—Feeding devices
-
- 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
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a coal crushing device for thermal power generation, which comprises a feed bin and a controller, wherein the top of the feed bin is provided with a feed inlet, the feed inlet is in an inverted funnel shape, a crushing clamping groove is formed in the funnel, a limit sensor is arranged in the feed bin, a crushing motor is arranged at the lower end of the feed inlet, and the controller is arranged on the feed bin and is connected with the crushing motor. The device can smash coal, with the appropriate coal of massive coal crushing size after, coal will get into the feed bin voluntarily, and the overall process is by the automatic control of controller, easy operation reduces working strength, improves work efficiency.
Description
Technical Field
The invention belongs to the technical field of electric power, and relates to a coal crushing device for thermal power generation.
Background
Thermal power generation is a power generation mode which is converted into electric energy by a power generation device by utilizing heat energy generated when solid, liquid and gas fuels such as coal, petroleum and natural gas are combusted, the thermal power generation is a main power generation mode in China, and a power station boiler is used as one of three main units of the thermal power station and is developed along with the development of thermal power industry in China. In recent years, environmental protection and energy conservation become an important direction of structural adjustment of the Chinese electric power industry, the thermal power industry actively advances the optimization and upgrading of industrial structures under the guidance of the policy of 'high pressure and low pressure', and a large number of small thermal power units with low energy efficiency and heavy pollution are closed, so that the updating and upgrading of domestic thermal power equipment are accelerated to a great extent.
Coal used in thermal power generation needs to be crushed and then is placed in a bin of the coal before being added into a thermal power generation chamber, most of the existing coal is placed in a crushing device in a blocking mode, then is crushed, and after being extruded in the crushing device, the coal is placed in the bin. This method has many processes, high working strength, and low working efficiency, and therefore a device capable of storing pulverized coal is required.
Disclosure of Invention
In order to solve the problems, the coal crushing device for thermal power generation can crush coal, after large-block coal is crushed into coal with proper size, the coal automatically enters a storage bin, and the whole process is automatically controlled by a controller, so that the operation is simple, the working strength is reduced, and the working efficiency is improved.
The invention provides a coal crushing device for thermal power generation, which comprises a bin and a controller, wherein the top of the bin is provided with a feed inlet, the feed inlet is in an inverted funnel shape, the inside of the funnel is provided with a crushing clamping groove, a limit sensor is arranged in the bin, the lower end of the feed inlet is provided with a crushing motor, the controller is arranged on the bin and is connected with the crushing motor, the crushing motor comprises a rotating motor, a rotating shaft, a moving device, a plurality of crushing rods, a supporting rod and a fixed rod, the rotating motor is arranged in the bin through the fixed rod, the rotating shaft is arranged on the rotating shaft of the motor, the rotating shaft is provided with a track, the moving device is arranged on the track of the rotating shaft, one ends of the crushing rods are movably connected with the top end of the rotating shaft, one ends of the supporting rod are movably connected with the moving device, the other ends of the supporting rod are movably connected with the crushing rods, and a filter screen is arranged between the crushing rods.
Further the controller includes control panel, control chip, digital quantity output module, position control module and signal detection module, control panel can set up the parameter value, control chip and digital quantity output module, position control module and signal detection module, digital quantity output module links to each other with rotating the motor, makes the controller can control the motor operation that rotates through digital quantity output module, position control module links to each other with mobile device, makes the controller can mobile device's operation through position control module, signal detection module links to each other with limit sensor, makes the controller can be through detecting the parameter value in the limit sensor.
The limit sensor comprises a detection end and a signal transmission port, the detection end can detect whether coal exists in the position of the storage bin, and the signal transmission port is connected with a signal detection module of the controller through a connecting wire, so that the limit sensor can transmit detected signals into the controller.
The rotary motor further comprises a power input end and a control end, wherein the power input end is connected with a power supply to provide power for the rotary motor, and the control end is connected with a digital quantity output module of the controller through a connecting wire to enable the controller to automatically control the rotary motor to operate.
Further the mobile device includes servo rotating electrical machines and frame, and servo rotating electrical machines installs in the frame, servo rotating electrical machines includes power input end and control end, and this power input end inserts the power, for portable power source provides the power, and this control end passes through the connecting wire and links to each other with the position control module in the controller, makes the operation of controller can automatic control mobile device. The frame includes bottom plate, movable plate and rotation threaded rod, have a plurality of dead levers on the bottom plate, rotate the threaded rod and link to each other with servo rotating motor's pivot, have a plurality of through-holes on the movable plate, and install in the many dead levers, the centre of movable plate has the screw hole, carries out threaded connection with the rotation threaded rod, movable plate upper end carries out swing joint with the bracing piece.
Further, the crushing rod is arc-shaped, the rod body is provided with a plurality of crushing clamping teeth, and gaps are reserved between the crushing clamping teeth and the clamping teeth in the bin. After the controller runs the rotating motor, the rotating motor drives the crushing rod to rotate, and coal is extruded, polished and crushed between the clamping teeth of the crushing rod and the clamping teeth in the storage bin.
Further the filter screen is a net structure made of metal materials, and crushed coal blocks enter the bin in grids among the metal materials.
Drawings
FIG. 1 is a schematic view showing the overall structure of a coal pulverizing apparatus for thermal power generation;
FIG. 2 is a schematic view showing the structure of a pulverizing motor of a coal pulverizing apparatus for thermal power generation;
fig. 3 is a schematic diagram of a moving device of a coal pulverizing device for thermal power generation.
In the figure: 1. a storage bin; 2. a controller; 3. a feed inlet; 4. crushing the clamping groove; 5. a limit sensor; 6. a crushing motor; 7. a rotating motor; 8. a rotating shaft; 9. a mobile device; 10. crushing the rod; 11. a support rod; 12. a fixed rod; 13. a servo rotating motor; 14. a bottom plate; 15. a moving plate; 16. and rotating the threaded rod.
Detailed Description
The following describes in detail a specific embodiment of a coal pulverizing apparatus for thermal power generation with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a coal crushing device for thermal power generation, which comprises a feed bin 1 and a controller 2, wherein the top of the feed bin 1 is provided with a feed inlet 3, the feed inlet 3 is in the shape of an inverted funnel, the inside of the funnel is provided with a crushing clamping groove 4, a limit sensor 5 is arranged in the feed bin 1, the lower end of the feed inlet 3 is provided with a crushing motor 6, the controller 2 is arranged on the feed bin 1 and is connected with the crushing motor 6, the crushing motor 6 comprises a rotating motor 7, a rotating shaft 8, a moving device 9, a plurality of crushing rods 10, a supporting rod 11 and a fixed rod 12, the rotating motor 7 is arranged in the feed bin 1 through the fixed rod 12, the rotating shaft 8 is arranged on the rotating shaft of the motor, the rotating shaft 8 is provided with a track, the moving device 9 is arranged on the track of the rotating shaft 8, one end of the plurality of crushing rods 10 is movably connected with the top end of the rotating shaft 8, one end of the supporting rod 11 is movably connected with the moving device 9, the other end of the supporting rod is movably connected with the crushing rod 10, and a filter screen is arranged between the crushing rods 10.
According to the above, the controller 2 includes a control panel, a control chip, a digital output module, a position control module and a signal detection module, where the control panel can set parameter values, the control chip is connected with the digital output module, the position control module and the signal detection module, where the digital output module is connected with the rotating motor 7, so that the controller 2 can control the rotating motor 7 to operate through the digital output module, the position control module is connected with the mobile device 9, so that the controller 2 can move the device 9 through the position control module, and the signal detection module is connected with the limit sensor 5, so that the controller 2 can detect the parameter values in the limit sensor 5.
According to the above, the limit sensor 5 includes a detection end and a signal transmission port, the detection end can detect whether the position of the bin 1 has coal, and the signal transmission port is connected with the signal detection module of the controller 2 through a connection line, so that the limit sensor 5 transmits the detected signal into the controller 2.
According to the above, the rotating motor 7 includes a power input end and a control end, the power input end is connected to a power source to provide power for the rotating motor 7, and the control end is connected to the digital output module of the controller 2 through a connection line, so that the controller 2 can automatically control the rotating motor 7 to operate.
As shown in fig. 3, the moving device 9 includes a servo rotating motor 13 and a frame, the servo rotating motor 13 is installed in the frame, the servo rotating motor 13 includes a power input end and a control end, the power input end is connected to a power supply, and provides power for the moving power supply, and the control end is connected to a position control module in the controller 2 through a connecting wire, so that the controller 2 can automatically control the operation of the moving device 9.
According to the above, the frame includes a bottom plate 14, a moving plate 15 and a rotating threaded rod 16, the bottom plate 14 has a plurality of fixed rods, the rotating threaded rod 16 is connected with the rotating shaft of the servo rotating motor 13, the moving plate 15 has a plurality of through holes and is installed in the plurality of fixed rods, the middle of the moving plate 15 has a threaded hole, and is in threaded connection with the rotating threaded rod 16, and the upper end of the moving plate 15 is in movable connection with the supporting rod 11. The control method of the structure is as follows: the controller 2 controls the servo rotating motor 13 to rotate, and the rotating shaft of the servo rotating motor 13 rotates to control the rotating threaded rod 16 to rotate. The rotating threaded rod 16 is in threaded connection with the moving plate 15, so that after the rotating threaded rod 16 rotates, the moving plate 15 moves up and down in the threaded direction, and after the moving plate 15 is movably connected with the supporting rod 11 and the up and down position of the moving plate 15 is adjusted, the supporting rod 11 also adjusts the position of the crushing rod 10 due to the moving position of the moving plate 15.
According to the above, the crushing rod 10 is arc-shaped, and the rod body is provided with a plurality of crushing teeth, and the crushing teeth have gaps with the teeth inside the bin 1. After the controller 2 runs the rotating motor 7, the rotating motor 7 drives the crushing rod 10 to rotate, and coal is extruded, polished and crushed between the clamping teeth of the crushing rod 10 and the clamping teeth in the storage bin 1.
According to the above, wherein the filter screen is made of a mesh structure made of metal materials, the pulverized coal pieces enter the bin 1 in the mesh between the metal materials.
The working principle of the coal crushing device for thermal power generation is as follows: according to the size to be crushed of the coal, a moving device 9 is operated in the controller 2, and the distance between the crushing rod 10 and the clamping teeth on the inner wall of the storage bin 1 is adjusted. Coal is placed into the feed inlet 3 of the feed bin 1, then the crushing motor 6 is driven to operate, under the action of extrusion collision of the clamping teeth on the crushing rod 10 and the clamping teeth in the feed bin 1, the coal is decomposed into small blocks, and too small coal falls into the feed bin 1 from the mesh of the filter screen. The excessive coal is polished to be smaller under the extrusion of the filter screen and the clamping teeth in the bin 1 until the excessive coal falls into the bin 1 from the gap between the crushing rod 10 and the bin 1. After the coal in the bin 1 reaches the position of the limit sensor 5, the controller receives a signal, sends out a picture and prompts that the coal blocks are not placed.
Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the technical solution of the invention and not limiting thereof. It will be understood by those skilled in the art that modifications and equivalents may be made to the particular embodiments of the invention, which are within the scope of the claims appended hereto.
Claims (4)
1. The utility model provides a coal reducing mechanism for thermal power, its characterized in that includes feed bin and controller, and the top of this feed bin has the feed inlet, and the feed inlet is the funnel shape of falling, and the inside of funnel has crushing draw-in groove, and feed bin internally mounted has spacing sensor, and crushing motor has been installed to the lower extreme of this feed inlet, the controller is installed on the feed bin to link to each other with crushing motor, crushing motor includes rotation motor, axis of rotation, mobile device, many crushing poles, bracing piece and dead lever, rotation motor passes through the dead lever is installed in the inside of feed bin, and the axis of rotation is installed in the pivot of motor, the axis of rotation has the track, mobile device installs on the track of axis of rotation, the one end and the top of axis of rotation of a plurality of crushing poles carry out swing joint, bracing piece one end and mobile device carry out swing joint, the other end and crushing pole carry out swing joint, install the filter screen between the crushing pole;
The controller comprises a digital quantity output module, a position control module and a signal detection module, wherein the digital quantity output module is connected with the rotating motor, so that the controller can control the rotating motor to operate through the digital quantity output module, the position control module is connected with the mobile device, the controller can control the mobile device to operate through the position control module, and the signal detection module is connected with the limit sensor, so that the controller can detect parameter values in the limit sensor;
The moving device comprises a servo rotating motor and a rack, wherein the servo rotating motor is arranged in the rack and comprises a control end which is connected with a position control module in the controller through a connecting wire;
The rack comprises a bottom plate, a moving plate and a rotating threaded rod, wherein a plurality of fixed rods are arranged on the bottom plate, the rotating threaded rod is connected with a rotating shaft of a servo rotating motor, a plurality of through holes are formed in the moving plate and are arranged in the plurality of fixed rods, a threaded hole is formed in the middle of the moving plate and is in threaded connection with the rotating threaded rod, and the upper end of the moving plate is movably connected with the supporting rod;
The crushing rod is arc-shaped, a plurality of crushing latches are arranged on the rod body, and gaps are reserved between the crushing latches and the latches in the bin.
2. The coal pulverizing apparatus for thermal power generation according to claim 1, wherein the limit sensor includes a signal transmission port connected to a signal detection module of the controller through a connection line.
3. The coal pulverizing apparatus for thermal power generation according to claim 1, wherein the rotary motor includes a control end connected to the digital output module of the controller via a connection line.
4. The coal pulverizing apparatus for thermal power generation according to claim 1, wherein the filter screen is a mesh structure made of a metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747065.8A CN112007734B (en) | 2020-07-29 | 2020-07-29 | Coal crushing device for thermal power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747065.8A CN112007734B (en) | 2020-07-29 | 2020-07-29 | Coal crushing device for thermal power generation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112007734A CN112007734A (en) | 2020-12-01 |
| CN112007734B true CN112007734B (en) | 2024-05-28 |
Family
ID=73499918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010747065.8A Active CN112007734B (en) | 2020-07-29 | 2020-07-29 | Coal crushing device for thermal power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112007734B (en) |
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| CN209829077U (en) * | 2019-04-08 | 2019-12-24 | 登封市汇联磨料磨具有限公司 | Reducing mechanism is used in production of diamond dust abrasive material |
| CN212396953U (en) * | 2020-07-29 | 2021-01-26 | 国网江苏省电力有限公司盐城供电分公司 | Coal crushing device for thermal power generation |
-
2020
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| JP2005046674A (en) * | 2003-07-30 | 2005-02-24 | Toshiba Corp | Particle pulverizing apparatus and particle pulverizing method |
| CN205462431U (en) * | 2016-03-28 | 2016-08-17 | 范坤 | Dual coal reducing mechanism |
| CN108080069A (en) * | 2016-11-19 | 2018-05-29 | 镇江东城医疗器械有限公司 | A kind of Chinese medicine disintegrating washing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112007734A (en) | 2020-12-01 |
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