CN112337620A - Power plant coal conveying and grinding system based on PLC - Google Patents
Power plant coal conveying and grinding system based on PLC Download PDFInfo
- Publication number
- CN112337620A CN112337620A CN202011086188.8A CN202011086188A CN112337620A CN 112337620 A CN112337620 A CN 112337620A CN 202011086188 A CN202011086188 A CN 202011086188A CN 112337620 A CN112337620 A CN 112337620A
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- fixedly connected
- coal
- wall
- side wall
- raw coal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of transmission equipment, and discloses a power plant coal conveying and grinding system based on a PLC (programmable logic controller), which comprises a raw coal feeding hopper, wherein a conveying device is arranged below the raw coal feeding hopper, a conveying frame is arranged at the right end of the conveying device, a crushing device is arranged at the right end of the conveying frame, a coal grinding device is arranged at the right end of the crushing device, a working cavity is arranged in the raw coal feeding hopper, a ring opening is arranged on the side wall of the working cavity, two annular grooves are symmetrically arranged on the side wall of the ring opening, the same sliding barrel is connected in the two annular grooves in a sliding mode, and a plurality of. According to the invention, when coal enters the raw coal feed hopper, the coal adhered to the inner wall of the raw coal feed hopper can be cleaned to prevent accumulation, so that the workload of operators is reduced, the influence on the coal transmission efficiency is avoided, the heat generated by the driving motor in the working cavity can be discharged, the aging of the internal circuit of the driving motor caused by the heat is avoided, and the filter screen plate is convenient to disassemble and clean.
Description
Technical Field
The invention relates to the technical field of transmission equipment, in particular to a power plant coal conveying and grinding system based on a PLC.
Background
The power generation of a power plant in China is mainly based on thermal power, wherein coal-fired power generation is the most main mode, when coal is used as fuel and transported to a feed inlet of a coal mill from a port, a needed coal conveying system is huge, and a large number of devices are involved, such as a coal feeder, a car dumper, a bucket wheel stacker-reclaimer, a belt conveyor, a coal crusher, a coal screening machine, a coal plough, a three-way baffle, a dust remover, a sampler, a coal level detection device, a belt scale and the like; the operation line from the port to the feed inlet of the coal mill is long, several kilometers are generally distributed, the related coal conveying pipeline is long, the coal conveying pipeline is generally called a coal dropping pipe in the industry, the coal dropping pipe is a pipeline for conveying coal in industries such as coal, port, thermal power, coal dumping station, coal washing plant, coal-fired industrial boiler and the like, the coal dropping pipe generally comprises a coal dropping hopper, a down pipe, a diversion trench and the like, an air lock is required to be added to the longer coal dropping pipe to reduce raise dust, and a diversion flap door and other parts are required to be added during diversion.
A power plant coal conveying and pulverizing system based on PLC is proposed in patent publication No. CN 107388273 a, which includes: the raw coal crushing device comprises a raw coal feeding hopper, a raw coal conveying frame, a coal crushing module and a coal mill, wherein the raw coal feeding hopper is in a hopper structure form and is connected with a coal yard, a transverse raw coal conveying frame is arranged at the lower end of the raw coal feeding hopper, the transverse raw coal conveying frame is connected with an oblique raw coal conveying frame through a driving wheel, the driving wheel is arranged at the lower end of the raw coal conveying frame and is connected with a driving motor through a belt, a supporting frame is arranged at the lower end of the oblique raw coal conveying frame and adopts a supporting cylinder structure form, the feeding height of raw coal can be adjusted through the supporting frame, the coal crushing module is connected and arranged at the upper end of the oblique raw coal conveying frame and comprises the supporting frame, the coal crushing module enables smooth feeding, a material inlet is arranged at the uppermost end of the coal crushing module, and a discharge outlet is arranged at the lowermost end of the coal crushing module, the material inlet is connected with a coal feeding cylinder;
the pendulum type pulverizer system with the drying function, which is proposed in patent publication No. CN 106269079A, comprises a pendulum type pulverizer body; the method is characterized in that: the material inlet of the pendulum type pulverizer body is connected with the discharge port of the vibrating feeder, the feed inlet of the vibrating feeder is connected with the discharge port of the material bin, the feed inlet of the material bin is connected with the discharge port of the bucket elevator, the feed inlet of the bucket elevator is connected with the discharge end of the belt conveyor, and the feed end of the belt conveyor is connected with the discharge port of the receiving hopper; the grinding cavity of the pendulum type pulverizer body is communicated with an air outlet of the hot blast stove through a hot blast pipeline and a pneumatic stop valve;
the above patents suffer from the following disadvantages:
when pouring coal into the raw coal feeder hopper, because coal slime or coal itself can be stained with on the coal surface is more glutinous, the coal in the raw coal feeder hopper easily adheres to and leads to the fact the heap at the feeder hopper inner wall, still needs operating personnel to clear up, has increased operating personnel's work load and has influenced the efficiency of coal transmission.
Disclosure of Invention
The invention aims to solve the problems that coal slime is adhered to the surface of coal or the coal is sticky when the coal is poured into a raw coal feed hopper in the prior art, the coal in the raw coal feed hopper is easily adhered to the inner wall of the feed hopper to cause accumulation, and an operator is required to clean the coal, so that the workload of the operator is increased and the coal transmission efficiency is influenced, and provides a PLC-based power plant coal conveying and grinding system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a PLC-based power plant coal conveying and pulverizing system comprises a raw coal feeding hopper, a conveying device is arranged below the raw coal feeding hopper, a conveying frame is arranged at the right end of the conveying device, a crushing device is arranged at the right end of the conveying frame, a coal grinding device is arranged at the right end of the crushing device, a working chamber is arranged inside the raw coal feeding hopper, a ring opening is formed in the side wall of the working chamber, two ring grooves are symmetrically formed in the side wall of the ring opening, the two ring grooves are in sliding connection with a same sliding barrel, a plurality of connecting rods are fixedly connected to the inner wall of the sliding barrel, one ends of the connecting rods, far away from the sliding barrel, are fixedly connected with a scraper blade through the ring opening, a mounting plate is fixedly connected to the outer wall of the sliding barrel, a driving motor is fixedly connected to the lower side wall of the mounting plate, and a driven gear ring matched with the driving gear is fixedly sleeved on the side wall of the working cavity.
Preferably, the fixed intercommunication cooling tube of lateral wall of raw coal feeder hopper, the mounting groove has been seted up to the pipe wall of cooling tube, it has filter plate to peg graft in the mounting groove, two backup pads of the low tube wall symmetry fixedly connected with of cooling tube, two the side of backup pad one side in opposite directions is rotated through the pivot and is connected with same supporting shoe, the lateral wall fixedly connected with telescopic link of supporting shoe, the one end fixedly connected with clamp plate of supporting shoe is kept away from to the telescopic link, the same root cover of lateral wall fixedly connected with between clamp plate and the supporting shoe is established at the outer spring of telescopic link, the clamp plate is close to filter plate's lateral wall fixedly connected with briquetting, filter plate's.
Preferably, the side wall of the pressing plate is fixedly connected with a pull ring.
Preferably, the scraper blade is inclined towards the inner wall of the raw coal feed hopper.
Preferably, four bracing pieces, four of the outer wall fixedly connected with of raw coal feeder hopper the equal fixedly connected with auto-lock wheel of lower extreme of bracing piece.
Preferably, the upper side wall of the transportation frame is fixedly connected with a drying device.
Compared with the prior art, the invention provides a power plant coal conveying and grinding system based on a PLC, which has the following beneficial effects:
1. this power plant coal carries milling system based on PLC, through working chamber, ring opening, ring channel, slide cartridge, connecting rod, scraper blade, mounting panel, driving motor, driving gear and driven ring gear that set up, can get into in the raw coal feeder hopper when coal, clear up the coal of adhesion at raw coal feeder hopper inner wall and prevent piling up, reduced operating personnel's work load and avoided causing the influence to the efficiency of coal transmission.
2. This milling system is carried to power plant coal based on PLC through cooling tube, mounting groove, filter plate, backup pad, supporting shoe, telescopic link, clamp plate, spring, briquetting and the indent that sets up, can discharge the heat that the inside driving motor of working chamber produced, avoids the heat to cause ageing and the convenient to detach clearance filter plate of driving motor inner line.
The device has the advantages that when coal enters the raw coal feeding hopper, the coal adhered to the inner wall of the raw coal feeding hopper can be cleaned to prevent accumulation, the workload of operators is reduced, the influence on the coal transmission efficiency is avoided, heat generated by a driving motor inside the working chamber can be discharged, the aging of an inner circuit of the driving motor caused by heat is avoided, and the filter screen plate is convenient to disassemble and clean.
Drawings
FIG. 1 is a schematic structural diagram of a PLC-based power plant coal conveying and pulverizing system provided by the invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is an enlarged view of portion C of FIG. 3;
FIG. 5 is a schematic diagram of a shape structure of a scraper in a PLC-based power plant coal conveying and pulverizing system.
In the figure: the device comprises a raw coal feeding hopper 1, a conveying device 2, a conveying frame 3, a crushing device 4, a coal grinding device 5, a working cavity 6, a ring opening 7, an annular groove 8, a sliding barrel 9, a connecting rod 10, a scraping plate 11, a mounting plate 12, a driving motor 13, a driving gear 14, a driven gear ring 15, a radiating pipe 16, a mounting groove 17, a filter screen plate 18, a supporting plate 19, a supporting block 20, a telescopic rod 21, a pressing plate 22, a spring 23, a pressing block 24, a pressing groove 25, a pull ring 26, a supporting rod 27, a self-locking wheel 28 and a drying device 29.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Embodiment 1 as shown in fig. 1-2, the power plant coal conveying and pulverizing system based on PLC includes a raw coal feeding hopper 1, a conveying device 2 is disposed below the raw coal feeding hopper 1, a conveying frame 3 is disposed at the right end of the conveying device 2, a crushing device 4 is disposed at the right end of the conveying frame 3, a coal grinding device 5 is disposed at the right end of the crushing device 4, a working chamber 6 is disposed inside the raw coal feeding hopper 1, a collar 7 is disposed on the side wall of the working chamber 6, two annular grooves 8 are symmetrically disposed on the side wall of the collar 7, the same sliding barrel 9 is slidably connected in the two annular grooves 8, a plurality of connecting rods 10 are fixedly connected to the inner wall of the sliding barrel 9, one ends of the connecting rods 10 far away from the sliding barrel 9 are fixedly connected with a scraper 11 through the collar 7, a mounting plate 12 is fixedly connected to the outer wall of the sliding barrel 9, a driving motor 13 is fixedly connected to the lower side wall of, and a driven gear ring 15 matched with the driving gear 14 is fixedly sleeved on the side wall of the working cavity 6.
Embodiment 2 is as shown in fig. 3-4 based on embodiment 1, a side wall of a raw coal feeding hopper 1 of the coal feeding hopper is fixedly communicated with a heat dissipation pipe 16, a pipe wall of the heat dissipation pipe 16 is provided with a mounting groove 17, a filter screen plate 18 is inserted into the mounting groove 17, a lower pipe wall of the heat dissipation pipe 16 is symmetrically and fixedly connected with two support plates 19, side edges of opposite sides of the two support plates 19 are rotatably connected with a same support block 20 through a rotating shaft, a side wall of the support block 20 is fixedly connected with a telescopic rod 21, one end of the telescopic rod 21 far away from the support block 20 is fixedly connected with a press plate 22, a side wall between the press plate 22 and the support block 20 is fixedly connected with a spring 23 sleeved outside the telescopic rod 21, a press block 24 is fixedly connected to a side wall of the press plate 22 close to the filter screen plate 18, the heat is prevented from causing the aging of the internal circuit of the driving motor 13, and the filter screen plate 18 is convenient to disassemble and clean.
Embodiment 3 is based on embodiment 1 and is shown in fig. 3, and the side wall of the pressing plate 22 is fixedly connected with a pull ring 26, so that the pressing plate 22 can be pulled conveniently.
Example 4 as shown in fig. 5, in addition to example 1, its scraper 11 is inclined toward the inner wall of the raw coal feed hopper 1, so that the coal in the raw coal feed hopper 1 can be cleaned relatively cleanly.
Embodiment 5 is based on embodiment 1 and as shown in fig. 1, the outer wall of the raw coal feed hopper 1 is fixedly connected with four support rods 27, and the lower ends of the four support rods 27 are fixedly connected with self-locking wheels 28, so that the moving convenience of the raw coal reducing hopper 1 is improved.
Example 6 as shown in fig. 1, on the basis of example 1, a drying device 29 is fixedly connected to the upper side wall of the transportation frame 3, so that coal can be ground conveniently.
In the invention, when the coal conveying device is used, the driving motor 13 is started, the driving motor 13 drives the driving gear 14 to rotate, the mounting plate 12 is driven to rotate and move through the mutual matching of the driving gear 14 and the driven gear ring 15, the mounting plate 12 drives the sliding cylinder 9 to rotate, the sliding cylinder 9 drives the scraper 11 to work through the connecting rod 10, and the scraper 11 cleans coal adhered to the inner wall of the raw coal feeding hopper 1 to prevent accumulation, so that the workload of operators is reduced, and the influence on the coal conveying efficiency is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a milling system is carried to power plant coal based on PLC, includes raw coal feeder hopper (1), its characterized in that, the below of raw coal feeder hopper (1) is equipped with conveyer (2), the right-hand member of conveyer (2) is equipped with transportation frame (3), the right-hand member of transportation frame (3) is equipped with breaker (4), the right-hand member of breaker (4) is equipped with coal grinding device (5), working chamber (6) have been seted up to the inside of raw coal feeder hopper (1), the opening in a ring (7) has been seted up to the lateral wall of working chamber (6), two ring channels (8) have been seted up to the lateral wall symmetry of opening in a ring (7), two sliding connection has same slide cartridge (9) in ring channel (8), the inner wall fixed connection of slide cartridge (9) has a plurality of connecting rods (10), the one end that slide cartridge (9) was kept away from to connecting rod (10) is through opening in a ring (7, the outer wall fixedly connected with mounting panel (12) of slide cartridge (9), the lower lateral wall fixedly connected with driving motor (13) of mounting panel (12), the output of driving motor (13) runs through lateral wall and fixedly connected with driving gear (14) of mounting panel (12), the lateral wall of working chamber (6) is fixed cup jointed with driving gear (14) assorted driven ring gear (15).
2. The PLC-based power plant coal conveying and grinding system according to claim 1, wherein a radiating pipe (16) is fixedly communicated with the side wall of the raw coal feeding hopper (1), a mounting groove (17) is formed in the pipe wall of the radiating pipe (16), a filter screen plate (18) is inserted in the mounting groove (17), two support plates (19) are symmetrically and fixedly connected to the lower pipe wall of the radiating pipe (16), the opposite side edges of the two support plates (19) are rotatably connected with a same support block (20) through a rotating shaft, a telescopic rod (21) is fixedly connected to the side wall of the support block (20), a pressing plate (22) is fixedly connected to one end, away from the support block (20), of the telescopic rod (21), a spring (23) is fixedly connected to the side wall between the pressing plate (22) and the support block (20) and sleeved outside the telescopic rod (, the side wall of the pressing plate (22) close to the filter screen plate (18) is fixedly connected with a pressing block (24), and the side wall of the filter screen plate (18) is provided with a pressing groove (25) matched with the pressing block (24).
3. The PLC-based power plant coal conveying mill system according to claim 2, wherein a pull ring (26) is fixedly connected to a side wall of the pressure plate (22).
4. The PLC-based power plant coal conveying and pulverizing system of claim 1, wherein the scraper (11) is inclined toward the inner wall of the raw coal feed hopper (1).
5. The PLC-based power plant coal conveying and pulverizing system of claim 1, characterized in that four support rods (27) are fixedly connected to the outer wall of the raw coal feed hopper (1), and self-locking wheels (28) are fixedly connected to the lower ends of the four support rods (27).
6. The PLC-based power plant coal conveying and pulverizing system of claim 1, wherein a drying device (29) is fixedly connected to the upper side wall of the transportation frame (3).
7. The PLC-based power plant coal conveying and pulverizing system comprises a raw coal feeding hopper (1) and is characterized in that a conveying device (2) is arranged below the raw coal feeding hopper (1), a conveying frame (3) is arranged at the right end of the conveying device (2), a crushing device (4) is arranged at the right end of the conveying frame (3), a coal grinding device (5) is arranged at the right end of the crushing device (4), a working chamber (6) is arranged inside the raw coal feeding hopper (1), a ring opening (7) is arranged on the side wall of the working chamber (6), two ring grooves (8) are symmetrically arranged on the side wall of the ring opening (7), the same sliding barrel (9) is slidably connected in the two ring grooves (8), a plurality of connecting rods (10) are fixedly connected to the inner wall of the sliding barrel (9), and a scraper (11) is fixedly connected to one end, far away from the sliding barrel (9), of each connecting rod (10) through the ring opening (7), the outer wall of the sliding barrel (9) is fixedly connected with a mounting plate (12), the lower side wall of the mounting plate (12) is fixedly connected with a driving motor (13), the output end of the driving motor (13) penetrates through the side wall of the mounting plate (12) and is fixedly connected with a driving gear (14), and a driven gear ring (15) matched with the driving gear (14) is fixedly sleeved on the side wall of the working cavity (6);
the side wall of the raw coal feed hopper (1) is fixedly communicated with the radiating pipe (16), the pipe wall of the radiating pipe (16) is provided with a mounting groove (17), a filter screen plate (18) is inserted in the mounting groove (17), two support plates (19) are symmetrically and fixedly connected to the lower pipe wall of the radiating pipe (16), the opposite side edges of the two support plates (19) are rotatably connected with the same support block (20) through a rotating shaft, the side wall of the support block (20) is fixedly connected with a telescopic rod (21), one end of the telescopic rod (21) far away from the support block (20) is fixedly connected with a pressing plate (22), the side wall between the pressing plate (22) and the support block (20) is fixedly connected with a spring (23) sleeved outside the telescopic rod (21), the pressing plate (22) is close to the side wall of the filter screen plate (18) and is fixedly connected with a pressing block (24), the side wall of, the lateral wall fixedly connected with pull ring (26) of clamp plate (22), scraper blade (11) slope towards raw coal feeder hopper (1) inner wall, four bracing pieces (27), four of the outer wall fixedly connected with of raw coal feeder hopper (1) the equal fixedly connected with auto-lock wheel (28) of lower extreme of bracing piece (27), go up lateral wall fixedly connected with drying device (29) of transportation frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011086188.8A CN112337620A (en) | 2020-10-12 | 2020-10-12 | Power plant coal conveying and grinding system based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011086188.8A CN112337620A (en) | 2020-10-12 | 2020-10-12 | Power plant coal conveying and grinding system based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112337620A true CN112337620A (en) | 2021-02-09 |
Family
ID=74360637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011086188.8A Withdrawn CN112337620A (en) | 2020-10-12 | 2020-10-12 | Power plant coal conveying and grinding system based on PLC |
Country Status (1)
| Country | Link |
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| CN (1) | CN112337620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353592A (en) * | 2021-07-02 | 2021-09-07 | 张续伟 | Material conveying mechanism for thermal power generation |
-
2020
- 2020-10-12 CN CN202011086188.8A patent/CN112337620A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353592A (en) * | 2021-07-02 | 2021-09-07 | 张续伟 | Material conveying mechanism for thermal power generation |
| CN113353592B (en) * | 2021-07-02 | 2022-10-14 | 南阳中誉发电有限公司 | Material conveying mechanism for thermal power generation |
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Application publication date: 20210209 |
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| WW01 | Invention patent application withdrawn after publication |