CN111359760A - Coal sample reducing mechanism - Google Patents
Coal sample reducing mechanism Download PDFInfo
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- CN111359760A CN111359760A CN202010274478.9A CN202010274478A CN111359760A CN 111359760 A CN111359760 A CN 111359760A CN 202010274478 A CN202010274478 A CN 202010274478A CN 111359760 A CN111359760 A CN 111359760A
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- 239000003245 coal Substances 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 238000012216 screening Methods 0.000 claims abstract description 160
- 238000000227 grinding Methods 0.000 claims abstract description 66
- 238000003756 stirring Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 6
- 238000005457 optimization Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning 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
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 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
- 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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C18/2216—Discharge means
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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
- B02C19/00—Other disintegrating devices or methods
- B02C19/16—Mills provided with vibrators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a coal sample crushing device which comprises a device shell, a rough grinding mechanism, a fine grinding mechanism and a screening mechanism, wherein the fine grinding mechanism comprises a mounting frame connected to the inner wall of the device shell, a vertical vibration motor arranged on the mounting frame, a support connected with the vertical vibration motor, a fine grinding box arranged on the support, a flexible blanking pipeline connected to the upper end of the fine grinding box, a blanking pipeline connected to the lower end of the fine grinding box, a first spring arranged between the support and the mounting frame and a vibration connecting plate connected to the lower end of the vertical vibration motor, and the screening mechanism comprises a first screening plate, a second screening plate, a third screening plate, a second spring and a plurality of screening discharge ports. This coal sample reducing mechanism makes the coal sample smash more thoroughly through multiple grinding to when grinding through the vibration, can carry out vibration screening to the coal sample who grinds out, collect it in grades, greatly reduced the performance consumption nature of device, and collect more accurately in grades to the coal sample.
Description
Technical Field
The invention belongs to the field of coal sample crushing devices, and particularly relates to an efficient and energy-saving coal sample crushing device.
Background
The coal sample pulverizing machine adopts a vibration type pulverizing machine, a solid cylinder is arranged in the middle of a concentric circular ring with a certain gap in a steel cup, then a cover is covered, the solid cylinder is fixed on a disk driven by a motor, the motor drives the disk to vibrate, so that the rigid circular rings in the cup are driven to mutually impact to pulverize a coal sample, then the coal sample is taken out and manually screened by using a corresponding mesh screen, coal powder on the mesh screen is used as the coal sample, and the mesh screen is cleaned after the completion of the coal sample pulverizing process.
The cutter sample preparation crusher adopted by some coal sample crushing devices can generate a large amount of dust and fine particles in the crushing process, the dust and the fine particles are easy to remain and adhere to the steel wall of the crushing cutter, the loss of a sample is caused, the disassembly and the cleaning are not facilitated, the coal sample is manually screened after the crushing, and the problem is still not solved.
For example, the coal sample crushing and screening all-in-one machine disclosed in patent No. CN106040354B also adopts a cutter for grinding, and a fan is used for collecting coal dust during vibration screening, so that the coal sample crushing and screening all-in-one machine has a certain collection error, and is easy to collect some fine coal dust and some larger coal dust together, and different driving devices are adopted during fine grinding and screening, so that the energy consumption is large.
Disclosure of Invention
The invention aims to solve the problems and provide a coal sample crushing device which is simple in structure, reasonable in design, efficient and energy-saving.
The invention realizes the purpose through the following technical scheme:
the utility model provides a coal sample reducing mechanism, includes device shell, coarse grinding mechanism, finish grinding mechanism and screening mechanism, finish grinding mechanism is including connecting the mounting bracket on device shell inner wall, locating the vertical vibration motor on the mounting bracket, the support of being connected with vertical vibration motor, locate the finish grinding box on the support, connect the flexible blanking pipeline of lapping box upper end, connect the unloading pipeline at the finish grinding box lower extreme, locate the first spring between support and the mounting bracket and connect the vibration connecting plate at the vertical vibration motor lower extreme, screening mechanism includes first screening plate, second screening plate, third screening plate, second spring and a plurality of screening discharge gate, all through second spring coupling between first screening plate, second screening plate and the third screening plate, first screening plate is connected with the vibration connecting plate.
As a further optimization scheme of the invention, the rough grinding mechanism comprises a grinding box, a motor arranged at the upper end of the grinding box, a feeding hole arranged on the side wall of the grinding box, a crushing blade connected to an output shaft of the motor, a stirring rod connected to the end part of the output shaft of the motor and a discharging pipe arranged at the bottom of the grinding box, wherein the discharging pipe is connected with a flexible blanking pipeline.
As a further optimization scheme of the present invention, the first screening plate and the second screening plate are both provided with a plurality of screening holes, and the diameter of the screening hole on the first screening plate is larger than that of the screening hole on the second screening plate.
As a further optimization scheme of the invention, included angles between the first screening plate, the second screening plate and the third screening plate and a horizontal plane are all 20-30 degrees, and the end parts of the first screening plate, the second screening plate and the third screening plate are in contact with the inner wall of the device shell.
As a further optimization scheme of the invention, the screening discharge ports are arranged on the device shell, and the screening discharge ports are respectively arranged corresponding to the first screening plate, the second screening plate and the third screening plate.
As a further optimization scheme of the invention, the outer wall of the device shell is detachably connected with a plurality of collecting boxes, and the collecting boxes are arranged right below the screening discharge hole.
As a further optimization scheme of the invention, the lower end of the blanking pipeline is positioned right above the first screening plate, and the first screening plate, the second screening plate and the third screening plate are all provided with side baffles.
The invention has the beneficial effects that:
1) when the coal sample is crushed, the coal sample is conveyed into a rough grinding mechanism through a feed port, a motor in the rough grinding mechanism drives a crushing blade and a stirring rod to carry out rough machining on the coal sample, the crushed and ground coal sample after being machined is conveyed into a flexible blanking pipeline through a discharge pipe, a vertical vibration motor in a fine grinding mechanism works and drives a bracket and a fine grinding box to vibrate, when in vibration, the coal sample in the flexible blanking pipeline falls into the fine grinding box to carry out fine grinding, the fine ground coal powder is conveyed into a screening mechanism through a discharge pipeline, a plurality of screening plates in the screening mechanism are driven by the vertical vibration motor to vibrate up and down, so that the coal powder falling on a first screening plate can move, after passing through screening holes on the first screening plate, the coal powder smaller than the screening holes falls into a second screening plate on the next layer, and the coal powder smaller than the screening holes on the second screening plate also falls into a third screening plate in the vibration process, the pulverized coal on the three screening plates gradually falls into the corresponding collecting boxes under the action of vibration, so that more accurate differential collection of the pulverized coal is realized, and the pulverized coal with different sizes is prevented from being mixed together again;
2) the invention utilizes a vertical vibration motor to complete the functions of fine grinding and screening, thereby greatly reducing the energy consumption of the device and collecting the pulverized coal more accurately;
3) the invention has simple structure, high stability, reasonable design and convenient realization.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the rough grinding mechanism of the present invention;
FIG. 3 is a schematic view of the fine grinding mechanism according to the present invention;
FIG. 4 is a schematic view of the structure of the screening mechanism of the present invention;
FIG. 5 is a schematic view of the structure of a first screening plate according to the present invention.
In the figure: 1. a device housing; 2. a rough grinding mechanism; 201. grinding a box; 202. a motor; 203. a feed inlet; 204. crushing the blade; 205. a stirring rod; 206. a discharge pipe; 3. a fine grinding mechanism; 301. a vertical vibration motor; 302. a support; 303. finely grinding the box; 304. a flexible blanking conduit; 305. a blanking pipeline; 306. a first spring; 307. a mounting frame; 308. vibrating the connecting plate; 4. a screening mechanism; 401. a first screening plate; 402. a second screening plate; 403. screening a discharge hole; 404. a third screening plate; 405. a second spring; 5. and (4) collecting the box.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-5, a coal sample crushing device comprises a device housing 1, a rough grinding mechanism 2, a fine grinding mechanism 3 and a screening mechanism 4;
the rough grinding mechanism 2 comprises a grinding box 201, a motor 202 arranged at the upper end of the grinding box 201, a feeding hole 203 arranged on the side wall of the grinding box 201, a crushing blade 204 connected to an output shaft of the motor 202, a stirring rod 205 connected to the end part of the output shaft of the motor 202 and a discharging pipe 206 arranged at the bottom of the grinding box 201, wherein the discharging pipe 206 is connected with a flexible blanking pipeline 304, a coal sample is conveyed into the rough grinding mechanism 2 through the feeding hole 203, and the motor 202 in the rough grinding mechanism 2 drives the crushing blade 204 and the stirring rod 205 to roughly process the coal sample;
the fine grinding mechanism 3 comprises a mounting frame 307 connected to the inner wall of the device shell 1, a vertical vibration motor 301 arranged on the mounting frame 307, a support 302 connected with the vertical vibration motor 301, a fine grinding box 303 arranged on the support 302, a flexible blanking pipeline 304 connected to the upper end of the fine grinding box 303, a blanking pipeline 305 connected to the lower end of the fine grinding box 303, a first spring 306 arranged between the support 302 and the mounting frame 307 and a vibration connecting plate 308 connected to the lower end of the vertical vibration motor 301, the screening mechanism 4 comprises a first screening plate 401, a second screening plate 402, a third screening plate 404, a second spring 405 and a plurality of screening discharge holes 403, the first screening plate 401, the second screening plate 402 and the third screening plate 404 are connected through the second spring 405, and the first screening plate 401 is connected with the vibration connecting plate 308; the first screening plate 401 and the second screening plate 402 are both provided with a plurality of screening holes, the diameter of the screening holes on the first screening plate 401 is larger than that of the screening holes on the second screening plate 402, and under the action of no fan, the effect of screening the pulverized coal layer by layer is achieved; the included angles between the first screening plate 401, the second screening plate 402 and the third screening plate 404 and the horizontal plane are 20-30 degrees, coal dust on the screening plates can conveniently move from a high end to a low end in the vibration process, the end parts of the first screening plate 401, the second screening plate 402 and the third screening plate 404 are in contact with the inner wall of the device shell 1, the coal dust can be prevented from falling when falling into a screening discharge hole 403 from the screening plates, the lower end of a blanking pipeline 305 is positioned right above the first screening plate 401, side baffles are arranged on the first screening plate 401, the second screening plate 402 and the third screening plate 404, and the coal dust is prevented from falling from two sides of a screening plate in the vibration movement process;
the processed crushed and ground coal sample is conveyed into a flexible blanking pipeline 304 through a discharge pipe 206, a vertical vibration motor 301 in the fine grinding mechanism 3 works and drives a support 302 and a fine grinding box 303 to vibrate, during vibration, the coal sample in the flexible blanking pipeline 304 falls into the fine grinding box 303 to be finely ground, finely ground coal powder is conveyed into a screening mechanism 4 through a discharge pipeline 305, a plurality of screening plates in the screening mechanism 4 are driven by the vertical vibration motor 301 to vibrate up and down, so that the coal powder falling on a first screening plate 401 can move, after passing through screening holes in the first screening plate 401, the coal powder smaller than the screening holes falls into a second screening plate 402 in the next layer, and the coal powder smaller than the screening holes in the second screening plate 402 also falls into a third screening plate 404 in the vibration process;
the screening discharge ports 403 are arranged on the device shell 1, and a plurality of screening discharge ports 403 are respectively arranged corresponding to the first screening plate 401, the second screening plate 402 and the third screening plate 404; the box 5 is collected to detachable being connected with a plurality of on the outer wall of device shell 1, collects box 5 and locates screening discharge gate 403 under, and the buggy on the three screening board falls into corresponding collection box 5 gradually under the effect of vibration, realizes comparatively accurate buggy difference and collects, prevents that the buggy of different size granules from mixing together again.
It should be noted that, when coal sample is pulverized, the coal sample is firstly conveyed into the rough grinding mechanism 2 through the feed port 203, the motor 202 in the rough grinding mechanism 2 drives the crushing blade 204 and the stirring rod 205 to perform rough machining on the coal sample, the pulverized and ground coal sample after being machined is conveyed into the flexible blanking pipe 304 through the discharge pipe 206, the vertical vibration motor 301 in the fine grinding mechanism 3 works and drives the bracket 302 and the fine grinding box 303 to vibrate, when vibrating, the coal sample in the flexible blanking pipe 304 falls into the fine grinding box 303 to perform fine grinding, the fine ground coal powder is conveyed into the screening mechanism 4 through the blanking pipe 305, a plurality of screening plates in the screening mechanism 4 are driven by the vertical vibration motor 301 to vibrate up and down, so that the coal powder falling on the first screening plate 401 can move, after passing through the screening holes on the first screening plate 401, the coal powder smaller than the next layer of the screening holes falls into the second screening plate 402, and the buggy that is less than the screening hole on the second screening board 402 also can fall into on the third screening board 404 in the vibration process, the buggy on the three screening board falls into corresponding collection box 5 gradually under the effect of vibration, realize comparatively accurate buggy difference and collect, prevent that the buggy of different size granules from mixing together again, and the buggy in the collection box 5 that first screening board 401 corresponds is the granule great, and can be convenient drop into feed inlet 203 again with it, and carry out processing once more to it.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. The utility model provides a coal sample reducing mechanism, includes device shell (1), coarse grinding mechanism (2), finish grinding mechanism (3) and screening mechanism (4), its characterized in that: the fine grinding mechanism (3) comprises a mounting frame (307) connected to the inner wall of the device shell (1), a vertical vibration motor (301) arranged on the mounting frame (307), a support (302) connected with the vertical vibration motor (301), a fine grinding box (303) arranged on the support (302), a flexible blanking pipeline (304) connected to the upper end of the fine grinding box (303), a blanking pipeline (305) connected to the lower end of the fine grinding box (303), a first spring (306) arranged between the support (302) and the mounting frame (307), and a vibration connecting plate (308) connected to the lower end of the vertical vibration motor (301), the screening mechanism (4) comprises a first screening plate (401), a second screening plate (402), a third screening plate (404), a second spring (405) and a plurality of screening discharge ports (403), and the first screening plate (401), the second screening plate (402) and the third screening plate (404) are all connected through the second spring (405), the first screening plate (401) is connected with a vibrating connection plate (308).
2. The coal sample crushing device according to claim 1, characterized in that: the rough grinding mechanism (2) comprises a grinding box (201), a motor (202) arranged at the upper end of the grinding box (201), a feeding hole (203) arranged on the side wall of the grinding box (201), a crushing blade (204) connected to an output shaft of the motor (202), a stirring rod (205) connected to the end part of the output shaft of the motor (202) and a discharging pipe (206) arranged at the bottom of the grinding box (201), wherein the discharging pipe (206) is connected with a flexible blanking pipeline (304).
3. The coal sample crushing device according to claim 1, characterized in that: all be equipped with a plurality of screening hole on first screening board (401) and second screening board (402), the diameter of the screening hole on first screening board (401) is greater than the diameter of the screening hole on second screening board (402).
4. A coal sample crushing apparatus as claimed in claim 3, characterized in that: the included angles between the first screening plate (401), the second screening plate (402) and the third screening plate (404) and the horizontal plane are 20-30 degrees, and the end parts of the first screening plate (401), the second screening plate (402) and the third screening plate (404) are in contact with the inner wall of the device shell (1).
5. A coal sample crushing apparatus as claimed in claim 3, characterized in that: screening discharge gate (403) are located on device shell (1), and a plurality of screening discharge gate (403) set up with first screening board (401), second screening board (402) and third screening board (404) respectively corresponding.
6. The coal sample crushing device according to claim 1, characterized in that: the device is characterized in that a plurality of collecting boxes (5) are detachably connected to the outer wall of the device shell (1), and the collecting boxes (5) are arranged under the screening discharge port (403).
7. The coal sample crushing device according to claim 1, characterized in that: the lower extreme of unloading pipeline (305) is located first screening board (401) directly over, all be equipped with the side shield on first screening board (401), second screening board (402) and third screening board (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274478.9A CN111359760A (en) | 2020-04-09 | 2020-04-09 | Coal sample reducing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274478.9A CN111359760A (en) | 2020-04-09 | 2020-04-09 | Coal sample reducing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111359760A true CN111359760A (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010274478.9A Pending CN111359760A (en) | 2020-04-09 | 2020-04-09 | Coal sample reducing mechanism |
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| CN (1) | CN111359760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690420A (en) * | 2020-07-09 | 2020-09-22 | 于浩 | High-efficient coke oven equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040354A (en) * | 2016-06-01 | 2016-10-26 | 中国地质大学（北京） | Crushing and screening integrated machine for preparation of coal samples |
| CN108325707A (en) * | 2018-01-29 | 2018-07-27 | 马奔腾 | A kind of medicinal material multi-process pulverization process system |
| CN208906103U (en) * | 2018-04-14 | 2019-05-28 | 山东岳华能源集团有限公司 | A kind of production device for superfine pulverized coal |
| CN212524454U (en) * | 2020-04-09 | 2021-02-12 | 平安开诚智能安全装备有限责任公司 | Coal sample reducing mechanism |
-
2020
- 2020-04-09 CN CN202010274478.9A patent/CN111359760A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040354A (en) * | 2016-06-01 | 2016-10-26 | 中国地质大学（北京） | Crushing and screening integrated machine for preparation of coal samples |
| CN108325707A (en) * | 2018-01-29 | 2018-07-27 | 马奔腾 | A kind of medicinal material multi-process pulverization process system |
| CN208906103U (en) * | 2018-04-14 | 2019-05-28 | 山东岳华能源集团有限公司 | A kind of production device for superfine pulverized coal |
| CN212524454U (en) * | 2020-04-09 | 2021-02-12 | 平安开诚智能安全装备有限责任公司 | Coal sample reducing mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690420A (en) * | 2020-07-09 | 2020-09-22 | 于浩 | High-efficient coke oven equipment |
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