CN114042504A - Integrated device for direct-drive rare earth motor of coal mill - Google Patents
Integrated device for direct-drive rare earth motor of coal mill Download PDFInfo
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- CN114042504A CN114042504A CN202111216071.1A CN202111216071A CN114042504A CN 114042504 A CN114042504 A CN 114042504A CN 202111216071 A CN202111216071 A CN 202111216071A CN 114042504 A CN114042504 A CN 114042504A
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- coal
- grinding
- connecting plate
- drainage
- roller
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- 239000003245 coal Substances 0.000 title claims abstract description 251
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 31
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 31
- 239000002817 coal dust Substances 0.000 claims abstract description 37
- 239000003818 cinder Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 35
- 238000007906 compression Methods 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000003915 air pollution Methods 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 239000002893 slag Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004484 Briquette Substances 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or 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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/001—Air flow directing means positioned on the periphery of the horizontally rotating milling surface
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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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- B08B1/165—
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- B08B1/20—
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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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses an integrated device for a direct-drive rare earth motor of a coal mill, which comprises a coal mill base for mounting a millstone press roll to crush coal briquettes and grind the coal briquettes into coal dust, and a coal removing mechanism arranged on the coal mill base and used for removing the coal briquettes and the coal dust adhered to the mill roll of the millstone press roll in the working process of the millstone press roll, wherein the coal removing mechanism comprises a telescopic device, an arc-shaped connecting plate and an adherence drainage device, the adherence drainage device is controlled by the telescopic device to be in contact with the surface of the mill roll and remove the coal dust and the coal briquettes on the surface of the mill roll, so that the problem that a large amount of coal dust adhered to the mill roll enters the rare earth motor to cause abnormal operation due to dissipation when being overturned to the outside of the coal mill is avoided, the problems that the air pollution is caused by the dissipation of the coal dust to influence the health of staff and cause resource waste are avoided, and then the removed coal dust and the coal briquettes are directly subjected to secondary pressure grinding by the adherence drainage device and then are directly drained to a corresponding area, the processing efficiency of the coal cinder is improved.
Description
Technical Field
The invention relates to the technical field of coal mill separation, in particular to an integrated device for a direct-drive rare earth motor of a coal mill.
Background
The rare earth motor is a motor with a series of advantages of small volume, light weight, high efficiency, good characteristics and the like, and along with the development of the rare earth industry, the rare earth motor can be widely applied to various fields instead of the traditional motor. In power plants and mines, the rare earth motor replaces a conventional motor-driven coal mill, so that the actual working efficiency can be improved, and the whole transmission mechanism can be simplified. In the conventional motor drive, a speed reducing mechanism, a lubricating oil system, a cooling system, a fire fighting system, an asynchronous motor power device and the like are required, the whole power transmission process is complex, the transmission efficiency is low due to the complex power structure, and the probability of possible failure is relatively high. Adopt tombarthite motor direct drive coal pulverizer, can simplify whole power process, compare in the conventional motor drive among the prior art, can get rid of decelerator, lubricating oil cold charge and fire control unit etc.. Therefore, compared with the conventional motor drive, the corresponding grinding disc of the coal mill body is directly driven by the rare earth motor, and the grinding disc has the characteristics of high efficiency, easiness in maintenance, simple structure and the like.
In the working process of the coal mill, the grinding disc compression roller is an important part for grinding the coal slag for processing in the coal mill, the coal slag is ground into the coal dust through the relative movement between the grinding roller and the grinding disc, and the coal dust is transferred to the next process through air flow. However, in the process of mill grinding roller work, a period of time after the compression roller need overturn outside the coal pulverizer and overhaul, and the compression roller can have a large amount of buggy and coal cinder to adhere on the compression roller when crushing the cinder, lead to the grinding roller to overturn outside the coal pulverizer occasionally a large amount of buggy loss to the external world, not only lead to buggy loss to the inside normal operating to the tombarthite motor of tombarthite motor to cause the influence, and cause a large amount of buggy waste and polluted air, cause the influence to staff's health, therefore, need design a coal pulverizer and directly drive integrated device of tombarthite motor.
Disclosure of Invention
The invention aims to provide an integrated device for directly driving a rare earth motor by a coal mill, which solves the problems that a large amount of coal dust and coal blocks are adhered to a grinding roller in the existing coal mill, and the grinding roller overturns to the outside of the coal mill after working for a period of time, so that a large amount of coal dust escapes, and the rare earth motor abnormally operates, causes air pollution and wastes resources.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
an integrated device for directly driving a rare earth motor of a coal mill is provided with:
the coal grinding machine base is used for installing a grinding disc compression roller to crush coal briquettes and grind the coal briquettes into coal powder, the coal grinding machine base is directly driven by a rare earth motor arranged at the bottom of the coal grinding machine base, and a protective cover is arranged between the coal grinding machine base and the rare earth motor to prevent the coal powder from entering an action part of the coal grinding machine base;
the coal removing mechanism is arranged on the coal grinding machine base and is used for removing coal briquettes and coal dust adhered to the grinding rolls of the grinding disc pressing rolls in the working process of the grinding disc pressing rolls;
the coal removing mechanism comprises a telescopic device, an arc-shaped connecting plate and an adherence drainage device, the arc-shaped connecting plate is arranged at one end of the telescopic device along the telescopic direction, the adherence drainage device is arranged on the inner arc surface of the arc-shaped plate, and the other end of the telescopic device along the telescopic direction is arranged on the coal grinding machine base;
the adherence drainage device is close to or far away from the grinding roller under the control of the telescopic device, and the adherence drainage device is attached to the grinding roller to remove coal and drains to a coal dust collection part after secondary pressure grinding.
As a preferred scheme of the invention, the adherence drainage device comprises an elastic adherence component, a secondary pressure grinding component and a drainage component, wherein the elastic adherence component is arranged on the inner arc surface of the arc-shaped connecting plate, the secondary pressure grinding component is arranged on one side of the arc-shaped connecting plate, and the drainage component is arranged at the lower position of the secondary pressure grinding component along the vertical direction;
the elastic adherence component removes the pulverized coal and the coal blocks adhered to the grinding roller and guides the pulverized coal and the coal blocks into the secondary pressing and grinding component, the secondary pressing and grinding component is in contact with the grinding roller, the grinding roller controls the secondary pressing and grinding component to perform secondary pressing and grinding on the pulverized coal and the coal blocks through friction force, and the guide component guides the pulverized coal and the coal blocks to a pulverized coal collection area.
As a preferred scheme of the invention, the elastic wall-adhering component comprises a first connecting plate and a second connecting plate which are sequentially arranged on the arc-shaped surface of the arc-shaped connecting plate according to the vertical height, a coal removing sliding plate is slidably sleeved on the outer wall of the second connecting plate, the end part of the coal removing sliding plate is connected with a compression spring which is connected with the inner arc surface of the arc-shaped connecting plate and sleeved on the outer wall of the second connecting plate, and the end part of the coal removing sliding plate and the end part of the first connecting plate are both provided with arc-shaped openings which are attached to the surface of the grinding roller;
the distance between the first connecting plate and the grinding roller is larger than zero, the arc-shaped opening on the coal removing sliding plate is attached to the surface of the grinding roller, and the coal removing sliding plate compresses the compression spring.
As a preferable scheme of the present invention, the coal removal sliding plate includes a connecting portion, an inclined surface portion, and an auxiliary cleaning assembly, the connecting portion is slidably sleeved on the second connecting plate and is connected to an end of the compression spring, the inclined surface portion is disposed on a side of the connecting portion close to the first connecting plate, and the auxiliary cleaning assembly is disposed on a side of the inclined surface portion close to the first connecting plate;
the pulverized coal and the coal blocks on the grinding roller are removed through the arc-shaped opening and guided into the secondary pressing and grinding assembly through the inclined surface portion, and the auxiliary removing assembly assists in loosening the pulverized coal and the coal blocks adhered to the grinding roller and primarily removes the pulverized coal and the coal blocks.
As a preferable scheme of the present invention, the auxiliary cleaning assembly includes a plurality of columns arranged in parallel on the inclined surface portion, an auxiliary connecting plate is commonly arranged at end portions of the plurality of columns, an elastic scraper attached to the surface of the grinding roller is arranged at one side of the auxiliary connecting plate, a plurality of roller bodies are arranged on the surface of the auxiliary connecting plate, and each roller body is provided with a plurality of sharp protrusions contacting the surface of the grinding roller.
As a preferable scheme of the present invention, the auxiliary connecting plate is provided with a plurality of linear grooves corresponding to the roller bodies, each of the linear grooves is slidably connected with a sliding connecting plate slidably connected with the auxiliary connecting plate through an auxiliary spring, and each of the roller bodies is rotatably connected to the corresponding sliding connecting plate and compresses the auxiliary spring when contacting with the surface of the grinding roller.
As a preferable scheme of the invention, the secondary pressing and grinding assembly comprises a cavity arranged on one side of the arc-shaped connecting plate, a plurality of secondary pressing rollers in contact with the grinding rollers are arranged in the cavity along the vertical direction, and an inclined plane connected with the drainage assembly is arranged at the bottom of the cavity;
the coal removing sliding plate extends into the cavity, the coal dust and the coal briquettes pass through the coal removing sliding plate and slide to the secondary compression roller and between the inner walls of the cavity, and the secondary compression roller is driven by the grinding roller to perform secondary compression grinding on the coal dust and the coal briquettes.
As a preferable scheme of the invention, a plurality of auxiliary scrapers are arranged on the inner wall of the cavity in parallel along the vertical direction, and each auxiliary scraper is positioned between two adjacent secondary compression rollers to limit the adhesion of the pulverized coal on the surfaces of the secondary compression rollers.
As a preferable scheme of the present invention, the drainage assembly includes a drainage chamber disposed at one side of the cavity, a filter screen and a drainage fan are sequentially disposed in the drainage chamber from top to bottom along a vertical direction, a channel communicated with an outside of the drainage chamber is disposed on the drainage chamber along an airflow direction generated by the drainage fan, the inclined plane extends into the drainage chamber and has a horizontal height greater than a horizontal height of the filter screen, and pulverized coal on the inclined plane is guided to a corresponding region outside the drainage chamber through the channel by the airflow generated by the drainage fan.
As a preferable scheme of the present invention, a connection groove communicated with the passage is provided on an outer wall of the drainage chamber, a connection shaft is provided in the connection groove, a sealing cover for sealing the passage is connected to the connection shaft through a torsion spring, the sealing cover is opened by an air flow generated when the drainage fan operates and compresses the torsion spring, and the sealing cover seals the passage under an elastic force of the torsion spring when the drainage fan stops operating.
Compared with the prior art, the invention has the following beneficial effects:
the adherence drainage device is controlled to be in contact with the surface of the grinding roller through the telescopic device and to remove the pulverized coal and the coal briquettes on the surface of the grinding roller, so that the problem that a large amount of pulverized coal adhered to the grinding roller enters the rare earth motor due to escape when the pulverized coal is overturned to the outside of the coal mill and cannot normally operate is solved, the problems that air pollution is caused due to the escape of the pulverized coal to influence the body health of workers and cause resource waste are solved, and then the adherence drainage device directly drains the removed pulverized coal and the removed coal briquettes to a corresponding area after being directly subjected to secondary pressure grinding, so that the processing efficiency of coal cinder is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic partial structural view of an adherent drainage device according to an embodiment of the invention;
FIG. 3 is a schematic view of a portion of a drainage assembly according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a portion of an auxiliary cleaning assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a coal removal skid plate according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a coal mill base; 2-a coal removal mechanism;
201-telescoping devices; 202-arc connecting plate; 203-adherent drainage device; 204-an elastic adherent member; 205-secondary crushing and grinding assembly; 206-a drainage assembly; 207-first connection plate; 208-a second connecting plate; 209-coal removal sliding plate; 210-a hold down spring; 211-arc shaped opening; 212-a connecting portion; 213-a bevel portion; 214-auxiliary purge component 214; 215-upright post; 216-auxiliary connection plate; 217-elastic scraper blade; 218-a roller body; 219-acute protrusions; 220-linear grooves; 221-an auxiliary spring; 222-a slip connector plate; 223-a cavity; 224-secondary press rolls; 225-inclined plane; 226-an auxiliary screed; 227-a drainage chamber; 228-a screen; 229-a drainage fan; 230-channel; 231-a connecting groove; 232-connecting shaft; 233-sealing cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the present invention provides an integrated device for direct-drive rare earth motor of coal mill, comprising:
the coal grinding machine base 1 is used for installing a grinding disc compression roller to crush coal briquettes and grind the coal briquettes into coal powder, the coal grinding machine base 1 is directly driven by a rare earth motor arranged at the bottom of the coal grinding machine base 1, and a protective cover is arranged between the coal grinding machine base 1 and the rare earth motor to prevent the coal powder from entering an action part of the coal grinding machine base 1;
the coal removing mechanism 2 is arranged on the coal grinding machine base 1 and is used for removing coal briquettes and coal dust adhered to the grinding roller of the grinding disc pressing roller in the working process of the grinding disc pressing roller;
the coal removing mechanism 2 comprises a telescopic device 201, an arc-shaped connecting plate 202 and an adherence drainage device 203, wherein the arc-shaped connecting plate 202 is arranged at one end of the telescopic device 201 in the telescopic direction, the adherence drainage device 203 is arranged on the inner arc surface of the arc-shaped plate 202, and the other end of the telescopic device 201 in the telescopic direction is arranged on the coal grinding machine base 1;
wherein, adherence drainage device 203 is close to or keeps away from the grinding roller under telescoping device 201's control, and adherence drainage device 203 and grinding roller laminating remove the coal and drainage to buggy collection department after the secondary pressure grinding.
When the coal slag grinding machine is used, the grinding disc compression rollers are installed on the coal grinding machine base 1, the grinding disc is horizontally placed, the grinding rollers are placed in a closed space on the coal grinding machine base 1 through the turnover structure, and the grinding disc compression rollers are driven by rare earth motor soil to grind and process coal slag.
Simultaneously, drive adherence drainage device 203 through telescoping device 201 and contact with the grinding roller outer wall, and take place the motion through the rotation of grinding roller and between the adherence drainage device 203 and clear away the buggy and the coal cinder that adhere on the grinding roller, the large amount of buggy of having avoided adhering on the grinding roller takes place the loss when upset to the coal pulverizer outside and leads to getting into the inside problem that leads to unable normal operating of tombarthite motor, and avoided the buggy loss to lead to air pollution to influence staff healthy and cause the problem of wasting of resources, secondly through direct drainage to corresponding the region after the adherence drainage device directly carries out the secondary pressure grinding to the buggy and the coal cinder of clearing away, the machining efficiency to the cinder has been improved.
When the grinding roller needs to overturn to the coal pulverizer outside, keep away from the grinding roller through telescoping device 201 drive arc connecting plate 202 and adherence drainage device 203, avoid adherence drainage device 203 to cause the interference to the upset action of grinding roller.
The setting of arc connecting block 202 makes adherence drainage mechanism 203 and grinding roller surface laminating, promotes the effect of cleaing away to grinding roller surface buggy and coal cinder.
In this embodiment, the telescopic device 201 is an electric push rod, and may be other structures capable of adjusting the arc-shaped connecting block 202 to be close to or far from the grinding roller.
The adherence drainage device 203 comprises an elastic adherence component 204, a secondary pressure grinding component 205 and a drainage component 206, wherein the elastic adherence component 204 is arranged on the inner arc surface of the arc-shaped connecting plate 202, the secondary pressure grinding component 205 is arranged on one side of the arc-shaped connecting plate 202, and the drainage component 206 is arranged at the lower position of the secondary pressure grinding component 205 along the vertical direction;
the elastic adherence component 205 removes the coal dust and coal blocks adhered to the grinding roller and leads the coal dust and coal blocks to the secondary pressure grinding component 205, the secondary pressure grinding component 205 is in contact with the grinding roller, the grinding roller controls the secondary pressure grinding component 205 to perform secondary pressure grinding on the coal dust and coal blocks through friction force, and the guide component 206 leads the coal dust to a coal dust collecting area.
When the adherence drainage device 203 is used, the elastic adherence component 204 is in contact with the surface of the grinding roller and removes the coal dust and coal blocks adhered to the grinding roller, and simultaneously the removed coal dust and coal blocks are guided into the secondary pressure grinding component 205 to be subjected to secondary pressure grinding to form coal dust, and the coal dust formed by the secondary pressure grinding is drained to a corresponding area in the coal grinding machine through the drainage component 206 to be collected and used.
And the secondary pressure grinding assembly 205 is driven by the grinding roller through friction force to grind the pulverized coal and the coal briquettes, so that the arrangement and installation of other power equipment are avoided, the integration level of the whole device is improved, the energy consumption is reduced, and the utilization rate of energy is improved.
The elastic adherence component 204 comprises a first connecting plate 207 and a second connecting plate 208 which are sequentially arranged on the arc-shaped surface of the arc-shaped connecting plate 202 according to the vertical height, a coal removing sliding plate 209 is slidably sleeved on the outer wall of the second connecting plate 208, the end part of the coal removing sliding plate 209 is connected with a compression spring 210 which is connected with the inner arc surface of the arc-shaped connecting plate 202 and sleeved on the outer wall of the second connecting plate 208, and arc-shaped openings 211 which are attached to the surface of a grinding roller are formed in the end part of the coal removing sliding plate 209 and the end part of the first connecting plate 207;
wherein, the interval between first connecting plate 207 and the grinding roller is greater than zero, and removes the laminating of arc mouth 211 and grinding roller surface on the coal slide 209, removes coal slide 209 compression spring 210.
When the elastic adherence component 204 is used, when the expansion device 201 drives the arc connecting plate 202 to be close to the grinding roller, the arc opening 211 on the coal removing sliding plate 209 is contacted with the surface of the grinding roller and slides along the surface of the second connecting plate 208 to compress the compression spring 210, and the arc opening 211 on the first connecting plate 207 is spaced from the surface of the grinding roller.
The arc-shaped opening 211 of the second connecting plate 208 partially scrapes off the coal dust and coal blocks adhered to the surface of the grinding roller through the rotation of the grinding roller, and the coal dust and coal blocks except the grinding roller are limited to enter the inside of the arc-shaped connecting plate 202 through the first connecting block 207 so as to avoid causing excessive blockage of the coal dust and coal blocks at the arc-shaped opening 211 and damage to the coal sliding plate 209.
Secondly, the coal removing sliding plate 209 is tightly attached to the surface of the grinding roller under the action of elastic force through the compression deformation of the compression spring 210.
Further, the thickness of the arc-shaped opening 211 on the coal removing sliding plate 209 is as small as possible, so that the cleaning effect of the arc-shaped opening 211 on the surface of the grinding roller is improved.
In this embodiment, the moving direction of the contact part of the grinding roller and the coal removal sliding plate 209 should be vertically upward, so that the coal dust and coal blocks removed from the grinding roller enter the secondary crushing assembly 205 through the coal removal sliding plate 209.
The coal removal sliding plate 209 comprises a connecting part 212, an inclined surface part 213 and an auxiliary cleaning assembly 214, wherein the connecting part 212 is slidably sleeved on the second connecting plate 208 and is connected with the end part of the compression spring 210, the inclined surface part 213 is arranged on one side of the connecting part 212 close to the first connecting plate 207, and the auxiliary cleaning assembly 214 is arranged on one side of the inclined surface part 213 close to the first connecting plate 207;
the pulverized coal and the coal lumps on the grinding roller are removed through the arc-shaped opening 211 and are guided into the secondary pressing and grinding assembly 205 through the inclined surface portion 213, and the auxiliary removing assembly 214 assists in loosening the pulverized coal and the coal lumps adhered to the grinding roller and primarily removing the pulverized coal and the coal lumps.
The connection part 212 on the coal removal sliding plate 209 is used for being connected with the second connecting plate 208 in a sliding way and is propped against the surface of the grinding roller through a compression spring 210.
Secondly, the inclined plane part 213 is used for guiding the removed pulverized coal and coal briquettes, and the pulverized coal and the coal briquettes can slide into the secondary grinding pressing assembly 205 along the inclined plane part 213 under the action of gravity and the action force of the grinding roller, so that the pulverized coal and the coal briquettes can be transferred conveniently, and the influence of the removed pulverized coal and coal briquettes accumulated on the second connecting plate 208 and the coal removing sliding plate 209 on the continuous cleaning and cleaning effect of the pulverized coal and the coal briquettes on the surface of the grinding roller is avoided.
Furthermore, the inclined plane part 213 is provided with a baffle plate for limiting the pulverized coal and coal blocks removed from the grinding roller to slide along the inclined plane part 213 and not fall off from the inclined plane part 213.
Secondly, consider the degree of cohering between buggy and coal cinder and the grinding roller surface, in order to further promote the clearance effect to grinding roller surface buggy and coal cinder, remove subassembly 214 through supplementary and become flexible before coal slide 209 clears away buggy and coal cinder to the grinding roller surface and adhere to buggy and coal cinder on the grinding roller surface, make the buggy and the coal cinder on grinding roller surface easily with clear away, and remove subassembly 214 through supplementary and tentatively clear away the buggy and the coal cinder that become flexible on the grinding roller tentatively, the rethread removes coal slide 209 and clears away the grinding roller surface, the clearance effect to the buggy and the coal cinder on grinding roller surface has been promoted.
The auxiliary removing assembly 214 comprises a plurality of upright posts 215 arranged on the inclined surface part 213 in parallel, an auxiliary connecting plate 216 is arranged at the end parts of the upright posts 215 together, an elastic scraper 217 attached to the surface of the grinding roller is arranged on one side of the auxiliary connecting plate 216, a plurality of roller bodies 218 are arranged on the surface of the auxiliary connecting plate 216, and a plurality of sharp protrusions 219 in contact with the surface of the grinding roller are arranged on each roller body 218.
The roller body 218 is driven to rotate by the rotation of the grinding roller and the acting force between the grinding roller and the sharp protrusions 219, so that the sharp protrusions 219 on the surface of the roller body 218 continuously loosen the coal dust and coal blocks adhered to the surface of the grinding roller.
Meanwhile, the elastic scraper 217 is contacted with the surface of the grinding roller to primarily remove the pulverized coal and coal blocks on the grinding roller, so that the cleaning effect on the surface of the grinding roller is further improved.
The auxiliary link plate 216 is provided with a plurality of linear grooves 220 corresponding to the roller bodies 218, a sliding link plate 222 slidably connected to the auxiliary link plate 216 is slidably connected to each linear groove 220 through an auxiliary spring 221, and each roller body 218 is rotatably connected to the corresponding sliding link plate 222 and compresses the auxiliary spring 221 when contacting the surface of the grinding roller.
Secondly, considering the contact condition of the sharp protrusions 219 with the surface of the grinding roller, because the coal removing sliding plate 209 has a certain sliding stroke, it is necessary to avoid that the sharp protrusions 219 do not contact with the surface of the grinding roller when the coal removing sliding plate 209 contacts with the grinding roller, which results in that the coal dust and coal lumps adhered to the surface of the grinding roller cannot be loosened, or the coal removing sliding plate 209 moves excessively to cause the acting force between the grinding roller and the sharp protrusions 219 to be too large, which results in the damage of the roller body 218.
Therefore, the sliding connecting plate 222 is arranged in the linear groove 220 through the auxiliary spring 221, when the sharp protrusion 219 or the coal removing sliding plate 209 is contacted with the grinding roller, a certain buffer is formed, namely, when the sharp protrusion 219 is contacted with the grinding roller, the sliding connecting plate 222 is driven to compress the auxiliary spring 221 along the linear groove 222, the sharp protrusion 219 is tightly abutted against the surface of the grinding roller through the elastic force of the auxiliary spring 221, the sharp protrusion 219 has a certain buffer stroke, and the precision control of the coal removing sliding plate 209 and the roller body 218 is reduced.
The secondary pressing and grinding assembly 205 comprises a cavity 223 arranged on one side of the arc-shaped connecting plate 202, a plurality of secondary pressing rollers 224 in contact with the grinding rollers are arranged in the cavity 223 along the vertical direction, and an inclined surface 225 connected with the drainage assembly 206 is arranged at the bottom of the cavity 223;
wherein, remove in the coal slide 209 extends to cavity 223, and buggy and coal cinder slide to between secondary compression roller 224 and the cavity 223 inner wall through removing coal slide 209, secondary compression roller 224 carries out the secondary pressure to buggy and coal cinder under the drive of grinding roller.
When the secondary pressing and grinding assembly 205 is used, the pulverized coal and the coal blocks which pass through the inclined surface part 213 slide to the position between the secondary pressing roller 224 and the inner wall of the cavity 223, the grinding roller drives the plurality of secondary pressing rollers 224 to rotate under the action of friction force, the pulverized coal and the coal blocks are driven by the rotation of the secondary pressing rollers 224 to be extruded and crushed with the inner wall of the cavity 223, move downwards under the action of gravity, and slide to the inside of the drainage assembly 206 along the lower surface 225.
Through the drive of the grinding roller to the secondary compression roller 224, the integration level of the whole device is improved, the resource waste caused by the introduction of power equipment is avoided, and the utilization rate of energy is improved.
And the secondary pressing roller 224 only improves the secondary pressing and grinding effect of the coal powder and the coal blocks, and the refined coal blocks are convenient for drainage in the drainage component 206.
A plurality of auxiliary scrapers 226 are arranged on the inner wall of the cavity 223 in parallel along the vertical direction, and each auxiliary scraper 226 is positioned between two adjacent secondary pressing rolls 224 to limit adhesion of pulverized coal on the surfaces of the secondary pressing rolls 224.
The surface of the secondary compression roller 224 in the rotating process is scraped by the arranged auxiliary scraper 226, so that the influence of the adhesion of the pulverized coal on the compression grinding effect of the pulverized coal and the coal briquette when the pulverized coal and the coal briquette are secondarily compressed and ground by the secondary compression roller 224 is avoided.
The flow guide assembly 206 comprises a flow guide chamber 227 arranged on one side of the cavity 223, a filter screen 228 and a flow guide fan 229 are sequentially arranged in the flow guide chamber 227 from top to bottom along the vertical direction, a channel 230 communicated with the outside of the flow guide chamber 227 is arranged on the flow guide chamber 227 along the airflow direction generated by the flow guide fan 229, the inclined plane 225 extends into the flow guide chamber 227 and has a horizontal height larger than that of the filter screen 228, and pulverized coal on the inclined plane 225 is guided to a corresponding area outside the flow guide chamber 227 through the channel 230 by the airflow generated by the flow guide fan 229.
When the flow guide assembly 206 is used, the flow guide chamber 227 is used for receiving coal dust sliding on the inclined surface 225, and wind power generated by the flow guide fan 229 drives the coal dust to move to a corresponding area along the channel 230, so that resource waste and efficiency reduction caused by multiple crushing and grinding of the coal dust mixed with coal slag in the coal mill again are avoided.
The coal dust and the drainage fan 229 are separated by the arranged filter screen 228, so that the drainage fan 229 is prevented from being abnormally operated due to the fact that part of the coal dust falls onto the drainage fan 229, and the drainage assembly 206 is disabled and blocks the drainage chamber 227.
In this embodiment, for the filter screen 228 to block part of the airflow, the power of the drainage fan 229 should be higher, so as to avoid blockage of the drainage chamber 227 caused by poor drainage effect of the airflow generated by the drainage fan 229 on the pulverized coal.
A connection groove 231 communicated with the passage 230 is formed in an outer wall of the drainage chamber 227, a connection shaft 232 is arranged in the connection groove 231, a sealing cover 233 for sealing the passage 230 is connected to the connection shaft 232 through a torsion spring, the sealing cover 233 is opened by air flow generated when the drainage fan 229 operates and compresses the torsion spring, and the sealing cover 233 seals the passage 230 under the elastic force of the torsion spring when the drainage fan 229 stops operating.
The passage 230 is sealed by the arranged sealing cover 233, so that the coal dust in the coal mill is prevented from falling into the drainage chamber 227 to cause blockage when the drainage fan 229 stops working.
When the drainage fan 229 works, the airflow generated by the drainage fan 229 impacts the cover 233 through the channel 230, so that the cover 233 rotates around the connecting shaft 232 to open the channel 230, and the drainage fan 229 conducts normal drainage and transportation of pulverized coal.
The cover 233 is provided in the coupling groove 231 so that the cover 233 has a better sealing property to the passage 233.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. The utility model provides an integrated device that coal pulverizer directly driven tombarthite motor which characterized in that possesses:
the coal grinding machine base (1) is used for installing a grinding disc compression roller to crush coal briquettes and grind the coal briquettes into coal powder, the coal grinding machine base (1) is directly driven by a rare earth motor arranged at the bottom of the coal grinding machine base (1), and a protective cover is arranged between the coal grinding machine base (1) and the rare earth motor to prevent the coal powder from entering an action part of the coal grinding machine base (1);
the coal removing mechanism (2) is arranged on the coal grinding machine base (1) and is used for removing coal briquettes and coal dust adhered to the grinding disc pressing roller in the working process of the grinding disc pressing roller;
the coal removing mechanism (2) comprises a telescopic device (201), an arc-shaped connecting plate (202) and an adherence drainage device (203), wherein the arc-shaped connecting plate (202) is arranged at one end of the telescopic device (201) along the telescopic direction, the adherence drainage device (203) is arranged on the inner arc surface of the arc-shaped plate (202), and the other end of the telescopic device (201) along the telescopic direction is arranged on the coal grinding machine base (1);
wherein, adherence drainage device (203) is in be close to or keep away from under the control of telescoping device (201) the grinding roller, just adherence drainage device (203) with the grinding roller laminating removes the coal and drainage to buggy collection department after the secondary pressure grinding.
2. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 1, wherein: the adherence drainage device (203) comprises an elastic adherence component (204), a secondary pressure grinding component (205) and a drainage component (206), wherein the elastic adherence component (204) is arranged on the inner arc surface of the arc-shaped connecting plate (202), the secondary pressure grinding component (205) is arranged on one side of the arc-shaped connecting plate (202), and the drainage component (206) is arranged at the position below the secondary pressure grinding component (205) along the vertical direction;
the elastic adherence component (205) removes the pulverized coal and the coal briquettes adhered to the grinding roller and guides the pulverized coal and the coal briquettes to the secondary pressing and grinding component (205), the secondary pressing and grinding component (205) is in contact with the grinding roller, the grinding roller controls the secondary pressing and grinding component (205) to perform secondary pressing and grinding on the pulverized coal and the coal briquettes through friction force, and the guide component (206) guides the pulverized coal and the coal briquettes to a pulverized coal collecting area.
3. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 2, wherein: the elastic adherence component (204) comprises a first connecting plate (207) and a second connecting plate (208) which are sequentially arranged on the arc-shaped surface of the arc-shaped connecting plate (202) according to the vertical height, a coal removing sliding plate (209) is slidably sleeved on the outer wall of the second connecting plate (208), the end part of the coal removing sliding plate (209) is connected with a compression spring (210) which is connected with the inner arc surface of the arc-shaped connecting plate (202) and sleeved on the outer wall of the second connecting plate (208), and arc-shaped openings (211) attached to the surface of the grinding roller are formed in the end part of the coal removing sliding plate (209) and the end part of the first connecting plate (207);
the distance between the first connecting plate (207) and the grinding roller is larger than zero, the arc-shaped opening (211) in the coal removing sliding plate (209) is attached to the surface of the grinding roller, and the coal removing sliding plate (209) compresses the compression spring (210).
4. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 3, wherein: the coal removal sliding plate (209) comprises a connecting part (212), an inclined plane part (213) and an auxiliary cleaning assembly (214), wherein the connecting part (212) is sleeved on the second connecting plate (208) in a sliding mode and is connected with the end part of the compression spring (210), the inclined plane part (213) is arranged on one side, close to the first connecting plate (207), of the connecting part (212), and the auxiliary cleaning assembly (214) is arranged on one side, close to the first connecting plate (207), of the inclined plane part (213);
the pulverized coal and the coal briquettes on the grinding roller are removed through the arc-shaped opening (211) and are guided into the secondary pressing and grinding assembly (205) through the inclined surface portion (213), and the auxiliary removing assembly (214) assists in loosening the pulverized coal and the coal briquettes adhered to the grinding roller and primarily removes the pulverized coal and the coal briquettes.
5. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 4, wherein: the auxiliary removing assembly (214) comprises a plurality of upright columns (215) which are arranged on the inclined plane part (213) in parallel, an auxiliary connecting plate (216) is arranged at the end part of each upright column (215) together, an elastic scraper (217) attached to the surface of the grinding roller is arranged on one side of the auxiliary connecting plate (216), a plurality of roller bodies (218) are arranged on the surface of the auxiliary connecting plate (216), and a plurality of sharp protrusions (219) in contact with the surface of the grinding roller are arranged on each roller body (218).
6. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 5, wherein: the auxiliary connecting plate (216) is provided with a plurality of linear grooves (220) corresponding to the roller bodies (218), a sliding connecting plate (222) in sliding connection with the auxiliary connecting plate (216) is connected in each linear groove (220) through an auxiliary spring (221), and each roller body (218) is rotatably connected to the corresponding sliding connecting plate (222) and compresses the auxiliary spring (221) when in contact with the surface of the grinding roller.
7. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 4, wherein: the secondary pressing and grinding assembly (205) comprises a cavity (223) arranged on one side of the arc-shaped connecting plate (202), a plurality of secondary pressing rollers (224) in contact with the grinding rollers are arranged in the cavity (223) along the vertical direction, and an inclined plane (225) connected with the drainage assembly (206) is arranged at the bottom of the cavity (223);
wherein, remove coal slide (209) and extend to in cavity (223), just buggy and coal cinder via remove coal slide (209) landing extremely secondary compression roller (224) with between cavity (223) inner wall, secondary compression roller (224) are in the drive of grinding roller is right buggy and coal cinder carry out the secondary pressure and grind.
8. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 7, wherein: a plurality of auxiliary scrapers (226) are arranged on the inner wall of the cavity (223) in parallel along the vertical direction, and each auxiliary scraper (226) is positioned between two adjacent secondary pressing rollers (224) to limit the adhesion of the coal powder on the surfaces of the secondary pressing rollers (224).
9. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 8, wherein: the drainage assembly (206) comprises a drainage chamber (227) arranged on one side of the cavity (223), a filter screen (228) and a drainage fan (229) are sequentially arranged in the drainage chamber (227) from top to bottom along the vertical direction, a channel (230) communicated with the outside of the drainage chamber (227) is arranged in the drainage chamber (227) along the airflow direction generated by the drainage fan (229), the inclined plane (225) extends into the drainage chamber (227) and the horizontal height of the inclined plane (225) is greater than that of the filter screen (228), and pulverized coal on the inclined plane (225) is guided to a corresponding area outside the drainage chamber (227) through the channel (230) by the airflow generated by the drainage fan (229).
10. The integrated device for the direct-drive rare earth motor of the coal mill as claimed in claim 9, wherein: the outer wall of the drainage chamber (227) is provided with a connecting groove (231) communicated with the channel (230), a connecting shaft (232) is arranged in the connecting groove (231), the connecting shaft (232) is connected with a sealing cover (233) used for sealing the channel (230) through a torsion spring, the sealing cover (233) is opened by airflow generated when the drainage fan (229) works and compresses the torsion spring, and the sealing cover (233) seals the channel (230) under the elastic force action of the torsion spring when the drainage fan (229) stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216071.1A CN114042504A (en) | 2021-10-19 | 2021-10-19 | Integrated device for direct-drive rare earth motor of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216071.1A CN114042504A (en) | 2021-10-19 | 2021-10-19 | Integrated device for direct-drive rare earth motor of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114042504A true CN114042504A (en) | 2022-02-15 |
Family
ID=80205681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111216071.1A Withdrawn CN114042504A (en) | 2021-10-19 | 2021-10-19 | Integrated device for direct-drive rare earth motor of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114042504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799622A (en) * | 2022-03-10 | 2022-07-29 | 江苏奥斯力特电子科技有限公司 | Sealing and welding device for quartz crystal resonator wafer |
| CN115924625A (en) * | 2023-03-13 | 2023-04-07 | 新乡市新兴冶金材料有限公司 | Core-spun yarn clamping and conveying device |
-
2021
- 2021-10-19 CN CN202111216071.1A patent/CN114042504A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799622A (en) * | 2022-03-10 | 2022-07-29 | 江苏奥斯力特电子科技有限公司 | Sealing and welding device for quartz crystal resonator wafer |
| CN114799622B (en) * | 2022-03-10 | 2024-04-05 | 徐州华达融达信息科技有限公司 | Sealing device for quartz crystal resonator wafer |
| CN115924625A (en) * | 2023-03-13 | 2023-04-07 | 新乡市新兴冶金材料有限公司 | Core-spun yarn clamping and conveying device |
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Application publication date: 20220215 |