CN211099318U - Automatic control coal grinding device for thermal power plant - Google Patents
Automatic control coal grinding device for thermal power plant Download PDFInfo
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- CN211099318U CN211099318U CN201921286022.3U CN201921286022U CN211099318U CN 211099318 U CN211099318 U CN 211099318U CN 201921286022 U CN201921286022 U CN 201921286022U CN 211099318 U CN211099318 U CN 211099318U
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Abstract
The utility model discloses a coal grinding device of automatic control for thermal power plant, including workstation, reducing mechanism, conveyor, autofilter air-dry device and P L C controller, the workstation is fixed down to be equipped with four support columns, the workstation is served and is provided with reducing mechanism and P L C controller, the conveyor is provided with down to the reducing mechanism, conveyor keeps away from reducing mechanism one end is equipped with autofilter air-dry device, reducing mechanism is including smashing the room, it fixes on the workstation to smash the room, it is fixed on the room to smash is equipped with first motor.
Description
Technical Field
The utility model relates to a thermal power plant equipment field particularly, relates to a thermal power plant uses automatic control's coal grinding device.
Background
The coal mill is the main equipment of a coal powder preparation system of a thermal power station. The steel ball coal mill is used for drying coal blocks, crushing the coal blocks through steel balls and lining plates in a cylinder body on the steel ball coal mill, grinding the coal blocks into coal powder for supplying to a boiler for combustion, and in order to improve the burning rate and ignition performance of the coal powder in the boiler of a coal-fired power station, the coal mill is generally used for grinding raw coal into the coal powder and sending the coal powder into a hearth through a pipeline for combustion. In the process of feeding raw coal into a hearth after being ground by a coal mill, two modes are adopted: firstly, a direct-fired pulverizing system, namely, coal is directly fed into a hearth for combustion through a pipeline after being ground by a coal mill; and the middle storage bin type powder making system is characterized in that the coal is ground by a coal mill and then is sent into a storage bin through a pipeline, and the coal enters the pipeline through a powder feeder at the lower part of the storage bin and then is sent into a hearth for combustion.
Chinese patent No. 201620888290.2 discloses a coal pulverizer for thermal power plant, though can filter the great coal cinder of granule through the filter screen, conveniently take out again and grind the coal, improved the efficiency of coal grinding greatly, but still need the manual work to take out the great colliery of granule on the filter screen, need the coal pulverizer stop operation for the safety when taking out the great colliery of granule on the filter screen to the efficiency of coal grinding media has been reduced.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thermal power plant is with automatic control's coal grinding device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the purpose, the utility model provides a coal grinding device with automatic control for thermal power plant includes a workbench, a crushing device, a conveying device, an automatic screening and air drying device and a P L C controller, wherein four support columns are fixed under the workbench, the crushing device and the P L C controller are arranged on one end of the workbench, the conveying device is arranged under the crushing device, and the automatic screening and air drying device is arranged at the end of the conveying device far away from the crushing device;
the crushing device comprises a crushing chamber, the crushing chamber is fixedly arranged on a workbench, a first motor is fixedly arranged on the crushing chamber, a rotating shaft of the first motor extends into the crushing chamber and is fixedly provided with a transmission rod, a plurality of coal grinding rods are fixedly arranged on the outer wall of the transmission rod, and a feeding port is arranged on one side of the upper end of the crushing chamber;
the conveying device is a conveying belt, the conveying belt is arranged on the workbench, one end of the conveying belt is arranged below the crushing chamber, and the other end of the conveying belt is flush with one end, far away from the crushing chamber, of the workbench;
the automatic screening and air-drying device comprises an air-drying cylinder, the air-drying cylinder is fixed at one end, far away from the crushing chamber, of the workbench, the upper end of the air-drying cylinder is connected with the output end of an air preheater through a pipeline, the input end of the air preheater is connected with a blower through a pipeline, both sides of the middle part of the air-drying cylinder are provided with through holes, the through hole at one side of the air-drying cylinder is matched with the output end of a conveyor belt, a round platform-shaped filter cylinder is fixedly arranged between the through holes at both sides of the air-drying cylinder, the inner wall of the filter cylinder is fixedly provided with a dragon blade, the air-drying cylinder is far away from one side of the workbench and is fixedly provided with a filter residue recovery box below the through holes, the upper wall of the filter residue recovery box is close to one side of the air-drying, one end of the filter cylinder, which is far away from the workbench, is fixedly connected with a rotating shaft of the second motor through two connecting rods;
the P L C controller is fixed to be established on the workstation, first motor, the second motor all with P L C controller electric connection.
Further, conveyer belt top and both sides all are provided with the baffle, baffle one end and crushing room outer wall fixed connection, the baffle other end with air-dry a section of thick bamboo outer wall fixed connection.
Furthermore, a rubber pad is fixedly arranged below the supporting column.
Furthermore, a hopper is fixedly arranged on the feeding port.
Further, the air preheater is installed in a smoke exhaust channel of the boiler.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses a set up workstation, reducing mechanism, conveyor, autofilter and air-dry device and P L C controller, can smash the coal, filter and air-dry to can carry the filter residue collection box with the large granule filter residue in the cartridge filter in the automation and conveniently retrieve the regrinding, need not to shut down and clear up, practiced thrift time and the manpower of clearing up the waste, further improved grinding media efficiency.
(2) The utility model discloses a set up the baffle, can effectually prevent that external wind from blowing the buggy on with the conveyer belt and flying.
(3) The utility model discloses a set up the rubber pad, can play shock attenuation and skid-proof effect.
(4) The utility model discloses a set up the hopper, can increase the bore of pan feeding mouth, the material loading of being convenient for.
(5) The utility model discloses a set up air heater, can utilize the high temperature flue gas in the exhaust passage to preheat the air to the increase is to buggy air-dried effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatically controlled coal grinding device for a thermal power plant according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a filter cartridge in an automatically controlled coal grinding device for a thermal power plant according to an embodiment of the present invention;
fig. 3 is according to the utility model discloses a flood dragon blade's among coal grinding device of automatic control for thermal power plant structural schematic diagram.
Reference numerals:
1. the device comprises a workbench, a P L C controller, a crushing chamber, a first motor, a transmission rod, a coal grinding rod, a feed inlet, a conveyor belt, a drying cylinder, a pipeline, a pre-heater, an air pre-heater, a fan, a blower, a filter drum, a filter cartridge, a dragon blade, a filter residue recycling box, a filter residue inlet, a filter residue recycling box, a rubber pad, a slag inlet, a second motor, a fan, a connecting rod, a baffle, a rubber pad, a hopper, a supporting column and a conveying belt, wherein the controller comprises a controller 2, a controller 3, a crushing chamber.
Detailed Description
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
the first embodiment is as follows:
please refer to fig. 1-3, according to the embodiment of the utility model discloses a coal grinding device with automatic control for thermal power plant, including workstation 1, reducing mechanism, conveyor, autofilter air-dries device and P L C controller 2, workstation 1 is fixed down and is equipped with four spinal branch daggers 22, the upper surface of workstation 1 sets to the plane, be used for bearing reducing mechanism, conveyor, autofilter air-dries device and P L C controller 2, workstation 1 serves and is provided with reducing mechanism and P L C controller 2, the lower conveyor that is provided with of reducing mechanism, conveyor keeps away from reducing mechanism one end and is equipped with autofilter air-dries the device.
The specific arrangement and function of the crushing device, the conveying device, the automatic screening and air-drying device and the P L C controller 2 will be described in detail.
The reducing mechanism is including smashing room 3, smash room 3 and fix and establish on workstation 1, smash and fixedly on the room 3 being equipped with first motor 4, first motor 4's pivot is stretched into and is smashed in the room 3 and fixed being equipped with transfer line 5, the outer wall of transfer line 5 is fixed and is equipped with a plurality of coal grinding rod 6, first motor 4 can drive coal grinding rod 6 high-speed rotatory through transfer line 5, it is equipped with pan feeding mouth 7 to smash 3 upper end one side in the room, the coal cinder of adding from pan feeding mouth 7 can be smashed by high-speed rotatory coal grinding rod 6.
The conveying device is a conveying belt 8, the conveying belt 8 is arranged on the workbench 1, the conveying belt 8 is the prior art, much description is not carried out, one end of the conveying belt 8 is arranged below the crushing chamber 3, the other end of the conveying belt 8 is flush with one end, far away from the crushing chamber 3, of the workbench 1, and pulverized coal can be conveyed into the air drying cylinder 9.
The automatic screening and air-drying device comprises an air-drying cylinder 9, the air-drying cylinder 9 is fixed at one end of a workbench 1, which is far away from a crushing chamber 3, the upper end of the air-drying cylinder 9 is connected with the output end of an air preheater 11 through a pipeline 10, the input end of the air preheater 11 is connected with an air feeder 12 through a pipeline 10, both sides of the middle part of the air-drying cylinder 9 are provided with through holes, the through hole at one side of the air-drying cylinder 9 is matched with the output end of a conveyor belt 8, a hollow truncated cone-shaped filter cylinder 13 is arranged between the through holes at both sides of the air-drying cylinder 9, both ends of the filter cylinder 13 are open, the inner wall of the filter cylinder 13 is fixedly provided with a dragon blade 14, a filter residue recovery box 15 is fixedly arranged at one side of the air-drying cylinder 9, a slag inlet 16 is arranged at one side, which is far away, filter cylinder 13 keeps away from 1 one end of workstation through two connecting rods 18 and second motor 17's pivot fixed connection, conveyer belt 8 carries the buggy into filter cylinder 13 from filter cylinder 13's left side port, forced draught blower 12 advances air heater 11 with air conveyor and preheats, then blow to filter cylinder 13 from air-dry 9's upper end, air-dry the buggy in filter cylinder 13, the buggy falls down from the lower extreme that air-dries a section of thick bamboo 9, second motor 17 drives filter cylinder 13 and rotates simultaneously, fixed mounting is in filter cylinder 13 the filter residue that the dragon blade 14 filtered down in with filter cylinder 13 section of thick bamboo right-hand member conveying, and finally get into in filter residue collection box 15 from filter cylinder 13's right-hand member.
The P L C controller 2 is fixed to be established on workstation 1, and first motor 4, second motor 17 all with P L C controller 2 electric connection, the P L C controller can control the rotational speed of first motor 4 and second motor 17.
Example two:
referring to fig. 1-3, for the conveyor belt 8, baffles 19 are arranged above and at two sides of the conveyor belt 8, one end of each baffle 19 is fixedly connected with the outer wall of the crushing chamber 3, and the other end of each baffle 19 is fixedly connected with the outer wall of the air drying cylinder 9, so that the pulverized coal on the conveyor belt 8 can be effectively prevented from being blown away by external wind; for the supporting columns 22, rubber pads 20 are fixedly arranged below the supporting columns 22, so that the functions of shock absorption and skid resistance can be achieved; for the feeding port 7, the hopper 21 is fixedly arranged on the feeding port 7, so that the caliber of the feeding port 7 can be increased, and feeding is facilitated; for the air preheater 11, the air preheater 11 is installed in the smoke exhaust channel of the boiler, and can preheat the air by using the high-temperature smoke in the smoke exhaust channel, thereby increasing the air-drying effect of the pulverized coal.
To sum up, with the help of the utility model discloses an above-mentioned technical scheme air-dries device and P L C controller 2 through setting up workstation 1, reducing mechanism, conveyor, autofilter, can smash, filter and air-dry the coal to can conveniently retrieve the regrinding automatically in carrying filter residue collection box 15 with the large granule filter residue in the cartridge filter 13, need not to shut down and clear up, practiced thrift time and the manpower of clearing up the waste, further improved grinding media efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The automatic control coal grinding device for the thermal power plant is characterized by comprising a workbench (1), a crushing device, a conveying device, an automatic screening and air drying device and a P L C controller (2), wherein the workbench (1) is provided with four support columns (22), one end of the workbench (1) is provided with the crushing device and the P L C controller (2), the conveying device is arranged below the crushing device, and the automatic screening and air drying device is arranged at the end, away from the crushing device, of the conveying device;
the crushing device comprises a crushing chamber (3), a first motor (4) is fixedly arranged on the crushing chamber (3), a rotating shaft of the first motor (4) extends into the crushing chamber (3) and is fixedly provided with a transmission rod (5), a plurality of coal grinding rods (6) are fixedly arranged on the outer wall of the transmission rod (5), and a feeding port (7) is arranged on one side of the upper end of the crushing chamber (3);
the conveying device is a conveyor belt (8), one end of the conveyor belt (8) is arranged below the crushing chamber (3), and the other end of the conveyor belt (8) is flush with one end, far away from the crushing chamber (3), of the workbench (1);
automatic screening air-dries device is including air-drying a section of thick bamboo (9), the upper end of air-drying a section of thick bamboo (9) is connected with the output of air heater (11) through pipeline (10), the input of air heater (11) is connected with forced draught blower (12) through pipeline (10), it has all seted up the perforation all to air-dry a section of thick bamboo (9) middle part both sides, it is equipped with cartridge filter (13) of hollow round platform form to air-dry a section of thick bamboo (9) both sides between the perforation, cartridge filter (13) inner wall is fixed and is equipped with flood dragon blade (14), air-dry a section of thick bamboo (9) and keep away from workstation (1) one side just is located the fixed filter residue collection box (15) that is equipped with in perforation below, filter residue collection box (15) upper wall is close to air-dry a section of thick bamboo (9) one side has been seted up into cinder notch (16), the fixed second motor (17) that is equipped with on filter residue collection The rotating shaft of the machine (17) is fixedly connected;
the P L C controller (2) is fixedly arranged on the workbench (1), and the first motor (4) and the second motor (17) are electrically connected with the P L C controller (2).
2. The automatic control coal grinding device for the thermal power plant according to claim 1, wherein a baffle (19) is arranged above and at two sides of the conveyor belt (8), one end of the baffle (19) is fixedly connected with the outer wall of the crushing chamber (3), and the other end of the baffle (19) is fixedly connected with the outer wall of the air drying cylinder (9).
3. The automatic control coal grinding device for the thermal power plant according to claim 1, characterized in that a rubber pad (20) is fixedly arranged below each supporting column (22).
4. The automatic control coal grinding device for the thermal power plant according to claim 1, characterized in that a hopper (21) is fixedly arranged on the feeding port (7).
5. An automatically controlled coal grinding device for thermal power plants according to claim 1, characterized in that the air preheater (11) is installed in the smoke exhaust channel of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286022.3U CN211099318U (en) | 2019-08-06 | 2019-08-06 | Automatic control coal grinding device for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286022.3U CN211099318U (en) | 2019-08-06 | 2019-08-06 | Automatic control coal grinding device for thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211099318U true CN211099318U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921286022.3U Active CN211099318U (en) | 2019-08-06 | 2019-08-06 | Automatic control coal grinding device for thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211099318U (en) |
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2019
- 2019-08-06 CN CN201921286022.3U patent/CN211099318U/en active Active
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