CN114515696B - Screening and circulating grinding device capable of automatically judging natural mineral grain grading state - Google Patents
Screening and circulating grinding device capable of automatically judging natural mineral grain grading state Download PDFInfo
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- CN114515696B CN114515696B CN202210039475.6A CN202210039475A CN114515696B CN 114515696 B CN114515696 B CN 114515696B CN 202210039475 A CN202210039475 A CN 202210039475A CN 114515696 B CN114515696 B CN 114515696B
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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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
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Abstract
The invention discloses a screening and circulating grinding device capable of automatically judging the grading state of natural mineral particles, which comprises a screening module, a grinding module, a screening judging module and a mixing module, wherein: the screening module comprises a screening bin and a fine material storage box; the grinding module comprises a grinding bin, a high-speed rotating shaft, grinding balls and an air circulation pumping system; the screening and judging module comprises a pressure sensing device, a quality control system, a vibration control system and an automatic control system; the mixing module comprises a mixing bin, a high-speed rotating shaft and an air circulation suction system. The invention can realize superfine grinding and fine screening of natural mineral materials and has the capability of judging whether the grinding and screening of the materials meet the preset requirements or not by screening.
Description
Technical Field
The invention belongs to the field of research on physicochemical characteristics of mineral materials, and relates to a screening and circulating grinding device capable of automatically judging the grading state of natural mineral particles.
Background
In the process of researching the physical and chemical properties of mineral materials, natural mineral materials need to be ground and sieved to a target particle size before research, and due to the fact that the sieved target particle size is fine, the development of natural mineral material superfine grinding equipment is an important problem which needs to be solved by relevant practitioners.
The existing device for superfine grinding of natural mineral materials is roughly divided into two forms of blue grinding and ball grinding according to the grinding principle, and grinding equipment in the two forms has certain defects: 1. the particles with different particle sizes and larger difference are mixed together, so that the grinding efficiency of the material is greatly reduced; 2. when the mineral material is screened, fine particles are easy to attach to the surface of screening equipment and various corner positions, so that the material is wasted, and the grinding efficiency is reduced; 3. the judgment standard of the superfine mineral material grinding equipment on the successful grinding of the material is not intelligent enough.
Disclosure of Invention
In order to scientifically and accurately ensure that the natural mineral material reaches the preset particle size after being ground and screened and no loss or little loss is realized in the grinding process, the invention provides a screening and circulating grinding device capable of automatically judging the grading state of the natural mineral particles. The invention can realize superfine grinding and fine screening of natural mineral materials and has the capability of judging whether the grinding and screening of the materials meet the preset requirements or not by screening.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a screening and circulation grinder that can differentiate natural mineral grain gradation state automatically, includes screening module, grinding module, screening and judges module, mixed module, wherein:
the screening module includes a screening bin and a particulate material storage box, wherein: the screening bin is in a circular truncated cone shape; the screening bin is provided with a plurality of unit screening bins along the height direction, and a fine particle material storage box is arranged at the bottom of the lowermost unit screening bin; the unit screening bins gradually decrease in mesh aperture from top to bottom along the height direction of the screening bins;
the grinding module includes grinding storehouse, high-speed pivot, grinding ball and air cycle suction system, wherein: the grinding bin is in a circular truncated cone shape, and the side wall of the grinding bin adopts a double-layer hollow design; a high-speed rotating shaft and grinding balls are arranged in the grinding bin; the high-speed rotating shaft consists of a light hollow steel pipe and a rotating blade; the light hollow steel pipe consists of a plurality of unit hollow steel pipes in the length direction, and the upper part and the lower part of each unit hollow steel pipe are provided with concave-convex grooves; the unit hollow steel pipe is welded with a rotary blade; the air circulation suction system comprises a plurality of suction devices which are arranged on an inner wall interlayer of the grinding bin at equal intervals along the radial direction;
the screening and judging module comprises a pressure sensing device, a quality control system, a vibration control system and an automatic control system, wherein: the pressure sensing device is arranged at the bottom of the unit screening bin and is connected with the quality control system, the vibration control system is connected with the unit screening bin, and the automatic control system is connected with the quality control system and the vibration control system;
the mixing module includes mixing storehouse, high-speed pivot and wind circulation suction system, wherein: the mixing bin is in a round table shape, and the side wall of the mixing bin adopts a double-layer hollow design; a high-speed rotating shaft is arranged in the mixing bin; the high-speed rotating shaft consists of a light hollow steel pipe and a rotating blade; the light hollow steel pipe consists of a plurality of unit hollow steel pipes in the length direction, and the upper part and the lower part of each unit hollow steel pipe are provided with concave-convex grooves; the unit hollow steel pipe is welded with a rotary blade; the wind circulation suction system comprises a plurality of suction devices which are arranged on an inner wall interlayer of the mixing bin at equal intervals along the radial direction.
A method for automatically distinguishing the grading state of natural mineral particles by using the device comprises the following steps:
step one, pouring natural mineral materials with different particle sizes into a screening module, starting a vibration control system, starting the screening module to perform vibration screening, starting a screening judgment module at the moment, analyzing data in real time, and stopping vibration screening when the quality of the screened materials reaches a threshold value;
step two, pouring the screened filler into a grinding module, starting a high-speed rotating shaft to drive a grinding ball to rotate and start grinding the material, starting an air circulation suction system to work to suck the granular material attached to the inner wall of a grinding bin and then inject the granular material into the grinding bin for continuous grinding;
step three, pouring the ground materials into a screening bin again, carrying out vibration screening, starting a screening judgment module to judge whether screening meets the preset requirement in the screening process, if so, executing step four, and if not, executing step two;
and step four, pouring the screened materials with different particle sizes into a mixing bin for mixing, thereby obtaining the uniformly mixed natural mineral filler.
Compared with the prior art, the invention has the following advantages:
(1) The invention has the function of classifying and screening ultrafine powder, and the transformed full-ceramic high-wear-resistance screening bin can realize primary screening of ultrafine powder;
(2) The invention has the performance of cleaning the ultrafine particles attached to the inner walls of the screening bin and the grinding bin in time, and improves the grinding efficiency;
(3) The invention can realize automatic intelligent control and judge whether the grinding meets the preset requirement or not according to the high-precision pressure sensing device.
Drawings
FIG. 1 is a flow diagram of an intelligent screening and grinding discharge process;
FIG. 2 is a schematic view of a screening silo configuration;
FIG. 3 is a schematic view of a grinding chamber;
FIG. 4 is a schematic structural view of a unit screening bin, a rigid screen and a strain sensitive effect sensing device;
FIG. 5 is a schematic diagram of a vibration control system;
FIG. 6 is a schematic view of a grinding chamber;
FIG. 7 is a schematic view of a high-speed rotating shaft of the grinding chamber;
FIG. 8 is a schematic view of the wind circulation suction system;
in the figure, 1, a screening bin; 2. a rigid screen; 2-1, 1mm screen mesh; 2-2 mm, 0.1mm screen mesh; 2-3 mm, 0.05mm screen mesh; 2-4 mm, 0.01mm screen mesh; 2-5 mm, 0.005mm screen; 2-6 mm, 0.001mm screen; 3. screening the bin housing; 4. a quality control system; 4-1, a threshold indicator light; 4-2, a threshold difference display; 4-3, stop the pilot lamp; 5. the quality control system is connected with the vibration control system through a lead; 6. a vibration control system; 6-1, connecting the vibration control system with a pull-sensitive resistor; 6-2, a pull-sensitive resistor; 7. a data acquisition system; 7-1, turning off an indicator light; 7-2, operating an indicator light; 8. the vibration spring is connected with the vibration control system through a lead; 9. a vibration spring; 9-1, a vibration spring ring; 10. a vibrating spring mount; 10-1, a vibration spring base fixing plate; 10-2, vibrating a spring power propeller; 10-3, a vibration spring shock pad; 11. a particulate material receiver; 12. a unit screening bin; 12-1, a resistance-sensitive sensing lead; 13. a grinding bin; 14. a high-speed rotating shaft; 14-1, rotating a gear by a high-speed rotating shaft; 14-2, a high-speed rotating shaft transmission gear; 14-3, rotating blades; 14-4, a material cleaning device; 14-5, a rotating shaft power system; 15. a wind circulation suction system; 15-1, wind circulation suction nozzles; 15-2, a wind circulation conduit; 15-3, grinding a bin interlayer; 16. grinding balls; 17. a grinding control module; 18. the grinding control module is connected with the high-speed rotating shaft through a lead; 19. a grinding bin housing; 19-1 and a mixing bin shell.
Detailed Description
The technical solutions of the present invention are further described below with reference to the drawings, but the present invention is not limited thereto, and any modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
The invention provides a screening and circulating grinding device capable of automatically judging the grading state of natural mineral particles, which comprises a screening module, a grinding module, a screening judging module and a mixing module as shown in figure 1.
In the present invention, as shown in figures 2 and 3, the screening module comprises a screening bin 1 and a fine material receiver 11, wherein:
the screening bin 1 is made of a ceramic high-wear-resistance material and is in a circular truncated cone shape, the radius R1 of the upper bottom is =20cm, the radius R1 of the lower bottom is =15cm, and the height h1 is =40cm;
the inside in screening storehouse 1 is provided with 6 unit screening storehouses 12 along its direction of height, is respectively from bottom to top: the fine particle screening device comprises 5 unit screening bins with the height of 5cm and 1 unit screening bin with the height of 10cm, wherein the upper part and the lower part of each unit screening bin are respectively provided with a concave-convex groove for facilitating the connection between the upper unit screening bin and the lower unit screening bin, and a fine particle material storage box 11 is arranged at the bottom of the unit screening bin at the lowest layer;
the unit screening bins 12 are provided with rigid screens 2, the apertures of the rigid screens 2 are different in size, the aperture range is 1mm at most and 1 μm at least, the screens of the unit screening bins from top to bottom are respectively 1mm, 0.1mm, 0.05mm, 0.01mm, 0.005mm and 0.001mm, the total number of the screens is 6, and the rigid screens 2 are circular.
In the present invention, as shown in fig. 5 to 7, the grinding module comprises a grinding bin 13, a high-speed rotating shaft 14, grinding balls 16, and a wind circulation suction system 15, wherein:
the grinding bin 13 is made of a ceramic high-wear-resistant material, is in a circular truncated cone shape, and has an upper bottom radius R2=10cm, a lower bottom radius R2=7.5cm and a height h2=20cm;
the side wall of the grinding bin 13 adopts a double-layer hollow design, so that a pipeline of the air circulation suction system 15 can be conveniently arranged;
a hole is reserved at the bottom of the grinding bin 13, and the size of the hole is consistent with the outer diameter of the height rotating shaft 14;
the high-speed rotating shaft 14 consists of a light hollow steel pipe with the diameter of 5cm and the length of 16cm and a rotating blade 14-3, the bottom end of the high-speed rotating shaft 14 is lower than the bottom of the grinding bin 13 by 4cm so as to be conveniently connected with a fixing device, the upper part 12cm penetrates into the grinding bin 13 through a reserved hole in the bottom of the grinding bin 13, the rotating blade 14-3 is welded on the light hollow steel pipe from bottom to top, the rotating blade 14-3 is arc-shaped, the radial length of the rotating blade is 4cm, the width of the rotating blade is 1cm, and the distance between the rotating blade and the inner wall of the grinding bin 13 is 1cm;
the fixing device is used for firmly fixing the high-speed rotating shaft 14 at the bottom of the grinding bin 13;
the light hollow steel pipe is a unit hollow steel pipe every 4cm in the length direction, and the upper part and the lower part of the unit hollow steel pipe are provided with concave-convex grooves which are convenient to connect;
the inner diameter of the light hollow steel pipe is 4cm, and 3 rotation driving devices are distributed in the space and are used for driving the unit hollow steel pipes at the upper, middle and lower 3 positions in the grinding bin 13 to rotate;
the rotary blades are arc-shaped and are welded on the light hollow steel pipe at intervals of 2 cm;
the surface of the grinding ball 16 is provided with a convex spine, the diameter of the grinding ball 16 is different from 0.5cm to 3cm, and the grinding balls with different particle sizes are mixed for use to improve the grinding efficiency;
the air circulation suction system 15 comprises 4 suction devices, the 4 suction devices are arranged on an inner wall interlayer of the grinding bin at intervals of 90 degrees along the radial direction, the suction range of each suction device is 90 degrees at the upper part, the lower part, the left part and the right part, and the suction devices are used for adsorbing fine particles attached to the inner wall of the grinding bin in the grinding process, the air circulation suction system is arranged on the inner wall interlayer of the grinding bin, the air circulation suction system 15 starts to work in a grinding gap, the 4 suction devices simultaneously suck and finally discharge the fine particles in the grinding bin, and the grinding is continued under the condition that the high-speed rotating shaft rotates again.
In the invention, the screening judgment module comprises a quality control system 4, a vibration control system 6, a high-precision micro pressure sensing device and an automatic control system, and is used for screening to judge whether the screening meets the preset requirements, wherein:
the high-precision micro pressure sensing device is a tension sensitive resistor 6-2, the tension sensitive resistor 6-2 is arranged at the bottom of the screen 2, see fig. 4, the quality control system intelligently tests the material quality change rate of each particle size unit screening bin at the vibration screening interval, intelligently senses the tension sensitive characteristic change of the tension sensitive sensing material caused by the quality change of the mineral materials in the screening bins, and further transmits signals to the automatic control system, and the automatic control system knows the quality change acquired by the quality control system and guides the vibration control system to perform vibration operation or not;
the vibration control system 6 is composed of a control motor with freely adjustable vibration frequency and vibration amplitude, and a connection line diagram of the pull-sensitive resistor 6-2, the quality control system 4 and the vibration control system 6 is shown in fig. 4;
the automatic control system is compiled based on Python language;
the Python language can process the electrical signals transmitted by the pressure sensing device, the collected electrical signals of the resistance, namely the resistance, are converted into quality data through a formula, the Python language program can further analyze the quality data, the threshold value is set as the mass change rate in unit time less than or equal to 0.01g, and when the mass change rate reaches the threshold value, the automatic control system stops screening.
In the present invention, as shown in fig. 8, the structure design of the mixing module is similar to that of the grinding module, except that the module does not include rigid grinding balls with raised spikes on the surface, and the other structure functions are completely consistent with those of the grinding module, and the function is to uniformly mix the ground mineral materials with various particle sizes, specifically as follows:
the mixing module comprises a mixing bin, a high-speed rotating shaft 14 and a wind circulation suction system 15, wherein:
the mixing bin is made of ceramic high-wear-resistant materials, the mixing bin is in a circular truncated cone shape, the radius R3 of the upper bottom is =10cm, the radius R3 of the lower bottom is =7.5cm, and the height h3 is =20cm;
the side wall of the mixing bin adopts a double-layer hollow design and is used for conveniently arranging pipelines of the air circulation suction system 15;
holes are reserved at the bottom of the mixing bin, and the size of each hole is consistent with the outer diameter of the height rotating shaft 14;
the high-speed rotating shaft 14 consists of a light hollow steel pipe with the diameter of 5cm and the length of 16cm and a rotating blade 14-3, the bottom end of the high-speed rotating shaft 14 is lower than the bottom of the grinding bin 13 by 4cm so as to be conveniently connected with a fixing device, the upper part 12cm penetrates into the grinding bin 13 through a hole reserved at the bottom of the grinding bin 13, the rotating blade 14-3 is welded on the light hollow steel pipe from bottom to top, the rotating blade 14-3 is arc-shaped, the radial length of the rotating blade is 4cm, the width of the rotating blade is 1cm, and the distance between the rotating blade and the inner wall of the mixing bin is 1cm;
the fixing device is used for firmly fixing the high-speed rotating shaft 14 at the bottom of the mixing bin;
the light hollow steel pipe is a unit hollow steel pipe every 4cm in the length direction, and the upper part and the lower part of the unit hollow steel pipe are provided with concave-convex grooves which are convenient to connect;
the inner diameter of the light hollow steel pipe is 4cm, and 3 rotation driving devices are distributed in the space and are used for driving the unit hollow steel pipes at the upper, middle and lower 3 positions in the mixing bin to rotate;
the rotary blades are arc-shaped and are welded on the light hollow steel pipe at intervals of 2 cm;
the wind circulation suction system 15 comprises 4 suction devices, the 4 suction devices are arranged on an inner wall interlayer of the mixing bin at intervals of 90 degrees along the radial direction, the suction range of each suction device is 90 degrees at the upper part, the lower part, the left part and the right part, and the suction devices are used for adsorbing fine particles attached to the inner wall of the mixing bin in the grinding process, the wind circulation suction system is arranged on the inner wall interlayer of the mixing bin, the wind circulation suction system 15 starts to work in a grinding gap, the 4 suction devices simultaneously suck and finally discharge the fine particles in the mixing bin, and the grinding is continued under the re-rotation of the high-speed rotating shaft.
The specific operation flow of the device comprises the following steps:
firstly, pouring natural mineral materials with different particle sizes into a screening bin, starting a vibration control system, starting vibration screening of the screening bin, starting a quality control module in a screening judgment module at the moment, analyzing data in real time, and stopping vibration screening when the quality of the screened materials reaches a threshold value;
then, pouring the screened filler into a grinding module, starting a high-speed rotating shaft to drive a rigid grinding ball to rotate and start grinding the material, starting an air circulation suction system to work at a grinding gap, sucking the granular material attached to the inner wall of a grinding bin, and injecting the granular material into the space of the grinding bin for continuous grinding;
then, the ground materials are poured into the screening bin again for vibration screening, and the high-precision micro pressure sensing device and the automatic control system of the screening judgment module start to screen and judge whether the screening meets the preset requirements or not in the screening process;
and finally, pouring the screened materials with different particle sizes into a mixing bin for mixing, thereby obtaining the uniformly mixed natural mineral filler.
Claims (8)
1. The method for automatically judging the grading state of natural mineral particles by utilizing the screening and circulating grinding device is characterized in that the screening and circulating grinding device comprises a screening module, a grinding module, a screening judging module and a mixing module, wherein:
the screening module comprises a screening bin and a fine material storage box;
the screening bin is provided with a plurality of unit screening bins along the height direction, and the bottom of the lowermost unit screening bin is provided with a fine particle material storage box;
the unit screening bins gradually decrease in mesh aperture from top to bottom along the height direction of the screening bins;
the grinding module comprises a grinding bin, a high-speed rotating shaft A, grinding balls and an air circulation pumping system A;
the side wall of the grinding bin adopts a double-layer hollow design;
a high-speed rotating shaft A and grinding balls are arranged in the grinding bin;
the air circulation suction system A comprises a plurality of suction devices A, and the suction devices A are radially and equidistantly arranged on an inner wall interlayer of the grinding bin;
the screening and judging module comprises a pressure sensing device, a quality control system, a vibration control system and an automatic control system;
the pressure sensing device is arranged at the bottom of the unit screening bin and is connected with the quality control system, the vibration control system is connected with the unit screening bin, and the automatic control system is connected with the quality control system and the vibration control system;
the mixing module comprises a mixing bin, a high-speed rotating shaft B and an air circulation suction system B;
the side wall of the mixing bin adopts a double-layer hollow design;
a high-speed rotating shaft B is arranged in the mixing bin;
the wind circulation suction system B comprises a plurality of suction devices B, and the suction devices B are radially and equidistantly arranged on an inner wall interlayer of the mixing bin;
the method comprises the following steps:
step one, natural mineral materials with different particle sizes are poured into a screening module, a vibration control system is started, the screening module starts to perform vibration screening, the screening judgment module starts to perform real-time data analysis at the moment, and when the quality of the screened materials reaches a threshold value, vibration screening is stopped;
step two, pouring the screened natural mineral materials into a grinding module, starting a high-speed rotating shaft A to drive a grinding ball to rotate and start grinding the materials, starting a wind circulation suction system A to work, sucking the granular materials attached to the inner wall of a grinding bin, and then injecting the granular materials into the grinding bin for continuous grinding;
step three, pouring the ground materials into a screening bin again, carrying out vibration screening, starting a screening judgment module to judge whether screening meets the preset requirement in the screening process, if so, executing step four, and if not, executing step two;
and step four, pouring the screened materials with different particle sizes into a mixing bin for mixing, thereby obtaining the uniformly mixed natural mineral filler.
2. The method for automatically discriminating the gradation status of natural mineral particles using a sieving and circular grinding apparatus according to claim 1, wherein the shape of the sieving chamber is a circular truncated cone shape.
3. The method for automatically discriminating the grading state of natural mineral particles using a sieving and circulating grinding device according to claim 1, wherein the grinding chamber has a shape of a circular truncated cone.
4. The method for automatically discriminating the grading state of natural mineral particles by using a screening and circulating grinding device according to claim 1, wherein the high-speed rotating shaft A and the high-speed rotating shaft B are both composed of a light hollow steel pipe and a rotating blade; the light hollow steel pipe consists of a plurality of unit hollow steel pipes in the length direction; and the unit hollow steel pipe is welded with a rotary blade.
5. The method for automatically discriminating the grading state of natural mineral particles using a sieving and circulating grinding device according to claim 4, wherein the unit hollow steel pipes are provided at upper and lower portions thereof with concave and convex grooves.
6. The method for automatically discriminating the gradation status of natural mineral particles using a sieving and circular grinding apparatus according to claim 1, wherein the shape of the mixing silo is a circular truncated cone.
7. The method for automatically discriminating the grading state of natural mineral particles using a sieving and circulating grinding device according to claim 1, wherein the surface of the grinding ball is provided with protruding spikes.
8. The method for automatically distinguishing the grading state of natural mineral particles by using a screening and circulating grinding device according to claim 1, wherein the screening bin, the grinding bin and the mixing bin are all made of ceramic high-wear-resistant materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210039475.6A CN114515696B (en) | 2022-01-13 | 2022-01-13 | Screening and circulating grinding device capable of automatically judging natural mineral grain grading state |
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| CN202210039475.6A CN114515696B (en) | 2022-01-13 | 2022-01-13 | Screening and circulating grinding device capable of automatically judging natural mineral grain grading state |
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| CN114515696B true CN114515696B (en) | 2022-11-29 |
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| CN2058112U (en) * | 1989-08-17 | 1990-06-13 | 张永明 | Sorting unit for hollow granule from coal ash |
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| EP3417942A1 (en) * | 2017-06-21 | 2018-12-26 | Serradimigni, Walter | A grinding plant for the production of products for ceramics |
| CN109641217A (en) * | 2016-09-09 | 2019-04-16 | 德国莱歇公司 | Operation Duo Ti cyclonic separation mechanism carrys out the method and Duo Ti cyclonic separation mechanism of separation of fine particle and superfine granule |
| CN112782047A (en) * | 2021-02-02 | 2021-05-11 | 南京聚控智能科技有限公司 | Online screening measuring device and method for coal powder fineness |
| CN113058847A (en) * | 2021-04-23 | 2021-07-02 | 哈尔滨工业大学 | Automatic screening and mixing system and method for anti-frost heaving filler of high-speed railway foundation |
| CN215463528U (en) * | 2021-08-30 | 2022-01-11 | 内江师范学院 | Mixed standing equipment for preparing modified titanium-based lithium ion adsorbent |
-
2022
- 2022-01-13 CN CN202210039475.6A patent/CN114515696B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058112U (en) * | 1989-08-17 | 1990-06-13 | 张永明 | Sorting unit for hollow granule from coal ash |
| CN109641217A (en) * | 2016-09-09 | 2019-04-16 | 德国莱歇公司 | Operation Duo Ti cyclonic separation mechanism carrys out the method and Duo Ti cyclonic separation mechanism of separation of fine particle and superfine granule |
| CN206315863U (en) * | 2016-10-31 | 2017-07-11 | 成都华创盛世科技有限公司 | A kind of industrial suction ball mill |
| EP3417942A1 (en) * | 2017-06-21 | 2018-12-26 | Serradimigni, Walter | A grinding plant for the production of products for ceramics |
| CN107081106A (en) * | 2017-06-26 | 2017-08-22 | 杭州乐守科技有限公司 | A kind of Textile Dyes ground and mixed integration apparatus |
| CN112782047A (en) * | 2021-02-02 | 2021-05-11 | 南京聚控智能科技有限公司 | Online screening measuring device and method for coal powder fineness |
| CN113058847A (en) * | 2021-04-23 | 2021-07-02 | 哈尔滨工业大学 | Automatic screening and mixing system and method for anti-frost heaving filler of high-speed railway foundation |
| CN215463528U (en) * | 2021-08-30 | 2022-01-11 | 内江师范学院 | Mixed standing equipment for preparing modified titanium-based lithium ion adsorbent |
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| CN114515696A (en) | 2022-05-20 |
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