CN112169990A - Dust-free crushing workstation and using method thereof - Google Patents
Dust-free crushing workstation and using method thereof Download PDFInfo
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- CN112169990A CN112169990A CN201910586610.7A CN201910586610A CN112169990A CN 112169990 A CN112169990 A CN 112169990A CN 201910586610 A CN201910586610 A CN 201910586610A CN 112169990 A CN112169990 A CN 112169990A
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- solid separator
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- material collector
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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
- 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
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
Abstract
The invention provides a dust-free crushing workstation and a using method thereof, wherein the workstation comprises a feeding system, a crusher, a gas-solid separator and a first material collector which are arranged in an outer cover and sequentially connected, wherein the gas-solid separator is communicated with a vacuumizing system, a pipeline with two open ends is vertically arranged in the gas-solid separator, and the lower end of the pipeline is lower than a feeding hole of the gas-solid separator; the using method comprises the following steps: pre-placing raw materials in a feeding system, and placing a first material collector; closing all door covers of the outer cover; starting a control system; opening the door cover and taking materials; and repeating the steps. The dust-free crushing workstation not only is convenient for collecting separated solid materials, but also has high material yield which can reach more than 99.9 percent, and is particularly suitable for crushing and collecting precious materials (such as artificial bezoar, voriconazole, orlistat, dimenhydrinate, nifedipine, polyethylene glycol and metformin); the gas-solid separation device also has the advantages of no dust, no harm and no noise.
Description
Technical Field
The invention relates to crushing equipment, in particular to a dust-free crushing workstation and a using method thereof.
Background
The dust-free crushing workstation generally comprises a feeding system, a crusher, a material collecting tank, a control valve and a control system, raw materials fed by the feeding system enter the crusher to be crushed, the crushed materials are conveyed to the material collecting tank, the whole process is carried out in a closed environment, the dust amount and the noise are small, and the dust-free crushing workstation is widely used for crushing lump materials in multiple industries such as medicine, chemical industry, food, health care products and the like.
CN205599310U discloses a novel dust-free crushing system, which comprises a dust-free feeding station, a vacuum feeding machine, a universal crusher, a temporary storage bin and a transit bin, wherein a discharging component is installed at the bottom of the dust-free feeding station, an air supply respirator is arranged on the discharging component, the discharging component is connected with the vacuum feeding machine through a pipeline, a screen is arranged at the bottom of the vacuum feeding machine and is connected with the universal crusher, a discharging port is arranged at the bottom of the universal crusher and is connected with the temporary storage bin through a conduit, a filter component is arranged on the temporary storage bin, and a bin cover is arranged at the bottom of the temporary storage bin and is connected with the transit bin in a; the dust-free feeding station, the vacuum feeding machine and the top of the temporary storage bin are all provided with a filtering and back-blowing device, and the filtering and back-blowing device is connected with a vacuum pipeline and a compressed air pipeline. Although the structure arrangement of the crushing system is optimized to a certain extent, the crushing system is convenient to operate and clean, the occupied space is larger, and the yield of crushed materials is lower.
Disclosure of Invention
One of the purposes of the invention is to provide a dust-free crushing workstation with high material yield.
In order to achieve the above object, the present invention adopts the following technical solutions.
The utility model provides a dustless crushing workstation, places in the dustcoat in including, and the feeding system, rubbing crusher, gas-solid separator and the first charge ware that connect gradually, gas-solid separator intercommunication vacuum pumping system, wherein, the vertical pipeline of having both ends open has been arranged in the gas-solid separator, and the pipeline lower extreme is lower than the feed inlet of gas-solid separator.
In order to further improve the material yield of the dust-free grinding workstation, the vacuumizing system is positioned at the top of the gas-solid separator, and a precise cloth bag is arranged at an air exhaust port of the vacuumizing system.
In order to further improve the material yield of the dust-free crushing workstation, the lower end of the pipeline is close to the bottom of the gas-solid separator.
In order to further improve the material yield of the dust-free crushing workstation, the pipeline is vertically arranged, and the upper end of the pipeline is connected with a vacuum pumping system.
In order to further improve the material yield of the dust-free crushing workstation, at least two gas-solid separators are arranged, a pipeline with two open ends is vertically arranged in each gas-solid separator, adjacent gas-solid separators are communicated with the pipeline through the pipeline, and the vacuumizing system and the precision cloth bag are positioned at the top of the last-stage gas-solid separator.
For convenient operation, the first material collector is communicated with the gas-solid separator through a straight pipe section with a valve, and the straight pipe section is detachably and sealably connected with the first material collector.
In order to realize trace material collection, a second material collector is arranged at a discharge port of the crusher and is connected with a negative pressure material suction pipe. Preferably, the second material collector comprises a trace material collecting barrel and a trace material collecting bag, and the trace material collecting bag is arranged in the trace material collecting barrel. When the amount of the materials to be crushed is small, the materials are only required to be received by the second material receiving device.
In order to reduce the occupied space of the equipment, the feeding system is positioned above the pulverizer, the first material collector is positioned below the gas-solid separator, the second material collector is positioned below the pulverizer, and the feeding system, the pulverizer, the gas-solid separator, the first material collector, the second material collector and the accessory parts are positioned in the same outer cover.
For convenient operation, a lifting mechanism is arranged below the first material collector, and the first material collector is controlled to be placed at a proper height by the lifting mechanism.
Preferably, the rotating speed of the pulverizer is not less than 6500 r/min, and the specification of a screen of the pulverizer is not more than 500 meshes; more preferably, the rotating speed of the pulverizer is 6500-7200 r/min, and the sieve specification of the pulverizer is 400-500 meshes.
In order to facilitate the falling of the materials, a vibrator is arranged on the outer wall of the gas-solid separator.
Further, the dust-free smashing workstation further comprises a control system, wherein the control system is respectively connected with and controls the feeding system, the smashing machine, the vacuumizing system, the valve and the lifting mechanism, the control system comprises a memory, a processor and a program which is stored on the memory and can be operated on the processor, and the processor executes the program to realize the following steps:
step A: after the sensor senses the first material collector, the lifting mechanism is started to adjust the first material collector to be in butt joint and sealing with the gas-solid separator;
and B: starting a feeding system, feeding according to set time or set feeding amount,
and C: opening a valve, starting a vacuum-pumping system, and pumping vacuum according to set time and set pressure;
step D: starting the crusher to crush the materials according to set time;
step E: the pulverizer is closed according to the set time, and then the vacuumizing system is closed;
step F: after the sensor senses the first material collector again, the lifting mechanism is started again according to set time, so that the first material collector is butted and sealed with the gas-solid separator;
step G: the start button is automatically executed.
Another object of the present invention is to provide a method for using the above dust-free pulverizing workstation, comprising the steps of:
and 5, repeating the steps 1 to 4.
Has the advantages that: due to the adoption of the technical scheme, the dust-free grinding workstation is convenient for collecting separated solid materials, has high material yield which can reach over 99.9 percent, and is particularly suitable for grinding and collecting precious materials (such as artificial bezoar, voriconazole, orlistat, dimenhydrinate, nifedipine, polyethylene glycol and metformin); the gas-solid separation device also has the advantages of no dust, no harm and no noise (the sound value in the running process of the equipment is below 70 decibels), and is beneficial to the health of operators; the dust-free crushing workstation is compact in structure, convenient to disassemble, high in system integration level, small in occupied area, capable of being flexibly arranged in corresponding positions in a workshop or a factory building and capable of being applied in a plurality of scenes.
Drawings
FIG. 1 is a schematic view of a dust-free pulverizing station in example 1;
FIG. 2 is a schematic view showing the connection of the solid-liquid separator of the dust-free pulverizing work station and the first charge collector in example 1;
FIG. 3 is a schematic view of a dust-free pulverizing station in example 2;
FIG. 4 is a schematic view showing the connection of the solid-liquid separator and the first material collector of the dust-free pulverizing work station in example 2.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following embodiments are only used for understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the invention as described herein, which do not depart from the principles of the invention, are intended to be within the scope of the claims which follow.
Example 1
A dust-free crushing workstation is shown in figure 1 and comprises a feeding system 9, a crusher 10, a gas-solid separator 2 and a first material collector 6 which are arranged in an outer cover 1 and connected in sequence, wherein the gas-solid separator 2 is communicated with a vacuumizing system 8, a pipeline 16 with two open ends is vertically arranged in the gas-solid separator 2, and the lower end of the pipeline 16 is lower than a feeding hole 15 of the gas-solid separator 2.
Wherein, the vacuum-pumping system 8 is positioned at the top of the gas-solid separator 2, a precise cloth bag 14 is arranged at the pumping hole of the vacuum-pumping system 8, and the precise cloth bag 14 is a cloth bag with the micropore size of less than 25 μm.
Wherein the lower end of the pipe 16 is close to the bottom of the gas-solid separator 2. In addition, the lower end of the pipe 16 may be located in the middle or lower part of the gas-solid separator 2, and may extend below the gas-solid separator 2.
Wherein, the pipeline 16 is vertically arranged, and the upper end of the pipeline 16 is connected with the vacuum-pumping system 8.
For convenient operation, a pipe section 4 is arranged at the discharge port of the gas-solid separator 2, the first material collector 6 is communicated with the gas-solid separator 2 through the pipe section 4 with a valve 3, and the pipe section 4 is detachably and sealably connected with the first material collector 6. As shown in fig. 2, the first material collector 6 is provided with a convex cover 18 with a material hole, the lower end of the pipe section 4 is provided with a concave cover 17 with a material hole, and the convex cover 18 and the concave cover 17 are matched to realize sealing.
In order to realize the collection of trace materials, a second material collector is arranged at a discharge port of the pulverizer 10 and is connected with a negative pressure material suction pipe 5, and after a vacuumizing system 8 is started, negative pressure is respectively generated in the gas-solid separator 2 and the negative pressure material suction pipe 5. In this embodiment, the second material collector includes a micro material collecting barrel 12 and a micro material collecting bag 13, and the micro material collecting bag 13 is disposed in the micro material collecting barrel 12. When the amount of the materials to be crushed is small, the materials are only required to be received by the second material receiving device.
In order to reduce the occupied space of the equipment, as shown in fig. 1, a feeding system 9 is positioned above a crusher 10, the feeding system 9 is installed on a partition plate 11 in a housing 1, a first material collector 6 is positioned below a gas-solid separator 2, a second material collector is positioned below the crusher 10, the feeding system 9, the crusher 10, the gas-solid separator 2, the first material collector 6, the second material collector and accessory components are positioned in the same housing 1, and the gas-solid separator 2 and a valve 3 are positioned above the partition plate 11.
For the convenience of operation, a lifting mechanism 7 is arranged below the first material collector 6, the lifting mechanism 7 controls the first material collector 6 to be placed at a proper height, the lifting mechanism 7 is lifted to drive a convex cover 18 of the first material collector 6 to be in butt seal with a concave cover 17 at the lower end of the pipe section 4, and the lifting mechanism 7 is lowered to drive the convex cover 18 of the first material collector 6 to be separated from the concave cover 17 at the lower end of the pipe section 4.
Preferably, the rotating speed of the pulverizer 10 is not less than 6500 r/min, and the size of the screen of the pulverizer 10 is not more than 500 meshes; more preferably, the rotation speed of the pulverizer 10 is 6500-7200 r/min, and the mesh size of the pulverizer 10 is 400-500 mesh. In this embodiment, the pulverizer 10 is a hammer mill, the driving motor of the pulverizer 10 is a permanent magnet high-efficiency high-speed motor, the rotation speed of the pulverizer is 7000 rpm, and the mesh size of the pulverizer 10 is 500 meshes.
Furthermore, the dust-free crushing workstation also comprises a control system, wherein the control system is respectively connected with and controls the feeding system 9, the crusher 10, the vacuum-pumping system 8, the valve 3 and the lifting mechanism 7; the control system comprises a memory, a processor and a program stored on the memory and capable of running on the processor, and the processor executes the program to realize the following steps:
step A: after a sensor of the control system senses the first material collector 6, starting the lifting mechanism 7 to adjust the first material collector 6 to enable the first material collector 6 to be butted and sealed with the gas-solid separator 2 (specifically, a concave cover 17 and a convex cover 18 at the lower end of a lower pipe section 4 of the gas-solid separator 2 are matched and sealed);
and B: starting the feeding system 9, feeding according to the set time or the set feeding amount,
and C: opening the valve 3, starting the vacuum-pumping system 8, and pumping vacuum according to the set time and the set pressure;
step D: starting the pulverizer 10, and pulverizing the materials according to set time;
step E: the pulverizer 10 is closed according to the set time, and then the vacuum-pumping system 8 is closed;
step F: after the sensor of the control system senses the first material collector 6 again, the lifting mechanism 7 is started again according to the set time, so that the first material collector 6 is butted and sealed with the gas-solid separator 2;
step G: after the material is manually fed, the button is started to automatically execute.
The using method of the dust-free crushing workstation comprises the following steps:
and 5, repeating the steps 1 to 4.
Example 2
A dust-free crushing workstation is shown in figure 3 and comprises a feeding system 9, a crusher 10, a gas-solid separator 2 and a first material collector 6 which are arranged in an outer cover 1 and connected in sequence, wherein the gas-solid separator 2 is communicated with a vacuumizing system 8, a pipeline 16 with two open ends is vertically arranged in the gas-solid separator 2, and the lower end of the pipeline 16 is lower than a feeding hole 15 of the gas-solid separator 2.
Wherein, the vacuum-pumping system 8 is positioned at the top of the gas-solid separator 2, a precise cloth bag 14 is arranged at the pumping hole of the vacuum-pumping system 8, and the precise cloth bag 14 is a cloth bag with the micropore size of less than 25 μm.
Wherein the lower end of the pipe 16 is close to the bottom of the gas-solid separator 2.
Wherein, the pipeline 16 is vertically arranged, and the upper end of the pipeline 16 is connected with the vacuum-pumping system 8.
Wherein, two gas-solid separators 2 are provided, and a pipeline 16 with two open ends is vertically arranged in each gas-solid separator 2, the adjacent gas-solid separators 2 are communicated with the pipeline 16 through a pipeline 19, and the vacuum-pumping system 8 and the precision cloth bag 14 are positioned at the top of the last stage gas-solid separator 2 (namely, the gas-solid separator on the left side in the figure 4). Of course, the number of the gas-solid separators 2 can be three, four or more, and the vacuum-pumping system 8 and the precision cloth bag 14 are positioned at the top of the final stage gas-solid separator 2.
For convenient operation, a pipe section 4 is arranged at the discharge port of the gas-solid separator 2, the first material collector 6 is communicated with the gas-solid separator 2 through the pipe section 4 with a valve 3, and the pipe section 4 is detachably and sealably connected with the first material collector 6. As shown in fig. 4, the first material collector 6 is provided with a convex cover 18 with a material hole, the lower end of the pipe section 4 is provided with a concave cover 17 with a material hole, and the convex cover 18 and the concave cover 17 are matched to realize sealing.
In order to reduce the occupied space of the equipment, as shown in fig. 3, a feeding system 9 is positioned above a crusher 10, the feeding system 9 is installed on a partition plate 11 in a housing 1, a first material collector 6 is positioned below a gas-solid separator 2, a second material collector is positioned below the crusher 10, the feeding system 9, the crusher 10, the gas-solid separator 2, the first material collector 6, the second material collector and accessory components are positioned in the same housing 1, and the gas-solid separator 2 and a valve 3 are positioned above the partition plate 11.
For the convenience of operation, a lifting mechanism 7 is arranged below the first material collector 6, the lifting mechanism 7 controls the first material collector 6 to be placed at a proper height, the lifting mechanism 7 is lifted to drive a convex cover 18 of the first material collector 6 to be in butt seal with a concave cover 17 at the lower end of the pipe section 4, and the lifting mechanism 7 is lowered to drive the convex cover 18 of the first material collector 6 to be separated from the concave cover 17 at the lower end of the pipe section 4.
Preferably, the rotating speed of the pulverizer 10 is not less than 6500 r/min, and the size of the screen of the pulverizer 10 is not more than 500 meshes; more preferably, the rotation speed of the pulverizer 10 is 6500-7200 r/min, and the mesh size of the pulverizer 10 is 400-500 mesh. In this embodiment, the pulverizer 10 is a hammer type pulverizer, the driving motor of the pulverizer 10 is a permanent magnet high-efficiency high-speed motor, the rotating speed of the pulverizer is 6500 rpm, and the size of the screen of the pulverizer 10 is 400 meshes.
Furthermore, the dust-free crushing workstation also comprises a control system, wherein the control system is respectively connected with and controls the feeding system 9, the crusher 10, the vacuum-pumping system 8, the valve 3 and the lifting mechanism 7; the control system comprises a memory, a processor and a program stored on the memory and capable of running on the processor, and the processor executes the program to realize the following steps:
step A: after a sensor of the control system senses the first material collector 6, starting the lifting mechanism 7 to adjust the first material collector 6 to enable the first material collector 6 to be butted and sealed with the gas-solid separator 2 (specifically, a concave cover 17 and a convex cover 18 at the lower end of a lower pipe section 4 of the gas-solid separator 2 are matched and sealed);
and B: starting the feeding system 9, feeding according to the set time or the set feeding amount,
and C: opening the valve 3, starting the vacuum-pumping system 8, and pumping vacuum according to the set time and the set pressure;
step D: starting the pulverizer 10, and pulverizing the materials according to set time;
step E: the pulverizer 10 is closed according to the set time, and then the vacuum-pumping system 8 is closed;
step F: after the sensor of the control system senses the first material collector 6 again, the lifting mechanism 7 is started again according to the set time, so that the first material collector 6 is butted and sealed with the gas-solid separator 2;
step G: after the material is manually fed, the button is started to automatically execute.
The using method of the dust-free crushing workstation comprises the following steps:
and 5, repeating the steps 1 to 4.
The working principle is as follows: for the dust-free pulverizing workstation in embodiment 1, the raw materials are put into the pulverizer by the feeding system for pulverizing, the pulverized materials are sucked into the solid-liquid separator, then most of the materials sink along the space between the pipeline and the inner wall of the solid-liquid separator under the action of self gravity until falling into the first material collector, even if a small amount of the materials are sucked into the pipeline, the materials are blocked below the precise cloth bag by the precise cloth bag, and after the vacuumizing system is closed, the partial materials sink along the inner cavity of the pipeline until falling into the first material collector; after the machine is shut down: standing the device for a proper time, closing the valve, and removing the first material collector to take materials; when the amount of the materials to be crushed is small (about 100 g), the materials are only required to be received by the second material receiving device, and the micro material receiving bag is taken out to take the materials after the materials are received. In the dust-free pulverizing workstation in embodiment 2, the raw material is thrown into the pulverizer by the feeding system for pulverizing, the pulverized material is firstly sucked into the first-stage solid-liquid separator (the right solid-liquid separator in fig. 4), then most of the material sinks along the space between the pipeline and the inner wall of the solid-liquid separator under the action of its own gravity until falling into the first receiver of the first-stage solid-liquid separator, the rest of the material is sucked into the next-stage solid-liquid separator (the left solid-liquid separator in fig. 4), most of the material entering the solid-liquid separator sinks along the space between the pipeline and the inner wall of the solid-liquid separator under the action of its own gravity until falling into the first receiver of the solid-liquid separator, the rest of the trace material is blocked under the precision cloth bag by the precision cloth bag, and after the vacuum pumping system is closed, the part of the material falls along the inner cavity of the pipeline, until the solid-liquid separator falls into a first material collector of the solid-liquid separator; after the machine is stopped, the device is stopped for a proper time, the valve is closed, and the first material collector is removed to take materials.
The effect of the dust-free pulverizing station of the present invention will be described below through experiments.
Respectively weighing the weight of the materials before crushing and the weight of the materials after crushing and separation, calculating the yield of the materials, and the results are shown in table 1,
TABLE 1 Material yield
As can be seen from table 1, the dust-free pulverizing workstation in example 1 can collect 99.93% of the material, and the dust-free pulverizing workstation in example 2 can collect 99.99% of the material, so that the material collecting effect is very excellent, and the dust-free pulverizing workstation is particularly suitable for separating valuable materials.
Claims (10)
1. The utility model provides a dustless crushing workstation which characterized in that: the crushing workstation comprises a feeding system (9), a crusher (10), a gas-solid separator (2) and a first material collector (6) which are arranged in an outer cover (1) in a built-in mode and connected in sequence, wherein the gas-solid separator (2) is communicated with a vacuumizing system (8), a pipeline (16) with two open ends is vertically arranged in the gas-solid separator (2), and the lower end of the pipeline (16) is lower than a feeding port (15) of the gas-solid separator (2).
2. A dust free comminution station as in claim 1 in which: the vacuum-pumping system (8) is positioned at the top of the gas-solid separator (2), and a precise cloth bag (14) is arranged at the air-pumping opening of the vacuum-pumping system (8).
3. A dust free comminution station as in claim 2 in which: the lower end of the pipeline (16) is close to the bottom of the gas-solid separator (2).
4. A dust-free comminution station as in claim 1, 2 or 3 in which: the number of the gas-solid separators (2) is at least two, pipelines (16) with two open ends are vertically arranged in each gas-solid separator (2), adjacent gas-solid separators (2) are communicated with the pipelines (16) through pipelines (19), and the vacuumizing system (8) and the precision cloth bag (14) are positioned at the top of the last-stage gas-solid separator (2).
5. The dust-free comminution station of claim 4, wherein: the first material collector (6) is communicated with the gas-solid separator (2) through a straight pipe section (4) with a valve (3), and the straight pipe section (4) is detachably and sealably connected with the first material collector (6).
6. The dust-free comminution station of claim 5, wherein: a second material collector is arranged at a discharge port of the crusher (10), the second material collector is connected with the negative pressure material suction pipe (5), the second material collector comprises a trace material receiving barrel (12) and a trace material receiving bag (13), and the trace material receiving bag (13) is arranged in the trace material receiving barrel (12).
7. The dust-free comminution station of claim 6, wherein: the feeding system (9) is positioned above the pulverizer (10), the first material collector (6) is positioned below the gas-solid separator (2), the second material collector is positioned below the pulverizer (10), and the feeding system (9), the pulverizer (10), the gas-solid separator (2), the first material collector (6), the second material collector and accessory components are positioned in the same outer cover (1).
8. A dust free comminution station as in claim 7 in which: the rotating speed of the pulverizer (10) is not less than 6500 r/min, and the size of the screen of the pulverizer (10) is not more than 500 meshes.
9. A dust free comminution station as in claim 8 in which: the dust-free crushing workstation further comprises a control system, the control system is respectively connected with and controls the feeding system (9), the crusher (10), the vacuumizing system (8), the valve (3) and the lifting mechanism (7), the control system comprises a memory, a processor and a program which is stored in the memory and can run on the processor, and the processor executes the program to realize the following steps:
step A: after the sensor senses the first material collector (6), the lifting mechanism (7) is started to adjust the first material collector (6) to be in butt joint and sealed with the gas-solid separator (2);
and B: starting a feeding system (9) to feed according to set time or set feeding amount,
and C: opening the valve (3), starting the vacuum-pumping system (8), and pumping vacuum according to the set time and the set pressure;
step D: starting the crusher (10) to crush the materials according to set time;
step E: the pulverizer (10) is closed according to the set time, and then the vacuumizing system (8) is closed;
step F: after the sensor senses the first material collector (6) again, the lifting mechanism (7) is started again according to set time, so that the first material collector (6) is butted and sealed with the gas-solid separator (2);
step G: the start button is automatically executed.
10. A method of using a dust free comminution station as claimed in any one of claims 1 to 9 in which the steps include:
step 1, pre-placing raw materials in a feeding system (9), and placing a first material collector (6);
step 2, closing all door covers of the outer cover (1);
step 3, crushing the materials;
step 4, opening a door cover and taking materials;
and 5, repeating the steps 1 to 4.
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