CN215429583U - Fly ash resource utilization system - Google Patents
Fly ash resource utilization system Download PDFInfo
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- CN215429583U CN215429583U CN202120593505.9U CN202120593505U CN215429583U CN 215429583 U CN215429583 U CN 215429583U CN 202120593505 U CN202120593505 U CN 202120593505U CN 215429583 U CN215429583 U CN 215429583U
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- Prior art keywords
- fly ash
- tank
- separator
- floating
- magnetic separator
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- 239000010881 fly ash Substances 0.000 title claims abstract description 43
- 239000011324 bead Substances 0.000 claims abstract description 58
- 238000007667 floating Methods 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 35
- 239000006148 magnetic separator Substances 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 28
- 238000007790 scraping Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 17
- 230000003750 conditioning effect Effects 0.000 claims abstract description 12
- 239000011449 brick Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 22
- 238000005188 flotation Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007791 liquid phase Substances 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 239000011343 solid material Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 229910052742 iron Inorganic materials 0.000 description 11
- 238000000227 grinding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000002956 ash Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 241000537371 Fraxinus caroliniana Species 0.000 description 1
- 235000010891 Ptelea trifoliata Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 210000004127 vitreous body Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The utility model discloses a fly ash resource utilization system, which comprises a slurry mixing pool, wherein a bead scraping device is arranged at the position of an overflow port of the slurry mixing pool; the device also comprises a strong magnetic separator, a ball mill, a weak magnetic separator, a floating bead storage tank, a feeding pump, a cyclone separator, a sand-water separator, a spiral elevator, a floating bead collecting tank, a water filter, a hot air dryer, a conditioning tank and a forming brick machine. The advantages are that: the fly ash recycling system provided by the utility model enables the comprehensive utilization rate of fly ash to be increased to 100%. The fly ash resource utilization system has high automation degree and convenient equipment maintenance, all equipment in the system adopts a fully-closed design, no dust overflow is caused, zero discharge of waste water and waste residue is realized, useful resources in the industrial solid waste fly ash are recycled while the industrial solid waste fly ash is treated, high-added-value fine utilization is realized, a fly ash front-end sorting process creates favorable conditions for subsequent utilization ways, and the production cost of enterprises is greatly reduced.
Description
Technical Field
The utility model relates to a fly ash treatment device, in particular to a fly ash recycling system.
Background
The power industry is the basic industry of national economy and has very important status and function in economic construction, and China has abundant coal resources, and the development of the power industry at present still mainly takes thermal power generation of coal. Due to the continuous expansion of the scale of a power plant and the continuous increase of coal-fired units, the discharge amount of the fly ash is increased sharply, and the discharge amount of the fly ash reaches 3.0 hundred million tons in China by 2010. At present, the treatment of fly ash in China takes ash field storage as a main means, and according to statistics, every ten thousand of fly ash residues need to be stockpiled at 0.27-0.33 hm2At the end of 2010, the quantity of the fly ash in the storage in China is up to 15 hundred million t, and the storage yard needs 3.93-5.12 ten thousand hm2Occupies a large amount of land resources and causes great pressure on national economic construction and ecological environment of China. On the other hand, China is a country with limited resource reserves occupied by everyone, the resource utilization of the fly ash changes waste into valuable and harmful into beneficial, and the fly ash becomes one of the economic construction of ChinaThe important technical and economic policy is an important means for solving the contradiction between the environmental pollution and the resource shortage of the power production in China and is one of the tasks to be solved by the power production.
The fly ash is a mixture of hollow glass beads, dense glass beads, iron-rich glass beads, porous spherical carbon particles, clastic carbon particles, spongy vitreous bodies and the like. The resource utilization is to extract varieties with high added value in the fly ash by different methods or ways according to respective characteristics, so that waste is changed into valuable, higher economic benefit can be brought, and remarkable social benefit and ecological benefit are also achieved. At present, the utilization rate of fly ash in industrially developed countries (Europe, America and the like) reaches 70% -80%, but China only reaches about 30%, and the fly ash is mainly used for building roadbed and backfilling, has high added value and low utilization rate, and the rest is stored in an ash yard, while most of the ash yards are used for cultivated land. Therefore, the resource utilization of the fly ash is urgently developed on a large scale.
SUMMERY OF THE UTILITY MODEL
In order to realize the resource utilization of the fly ash, the utility model provides a fly ash resource utilization system.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a fly ash resource utilization system, which comprises a slurry mixing pool; the bottom slurry outlet of the slurry mixing tank is connected with the material inlet of the strong magnetic separator; the strong magnetic material outlet of the strong magnetic separator is connected with the feed inlet of the ball mill; the discharge hole of the ball mill is connected with the feed inlet of the weak magnetic separator; the overflow port of the slurry mixing tank is provided with a bead scraping device, a floating bead storage tank is arranged below the bead scraping device, and the bead scraping device can scrape floating beads floating at the overflow port of the slurry mixing tank 1 and send the floating beads to the floating bead storage tank; the material outlet of the floating bead storage tank is connected with the feed inlet of a cyclone separator through a feeding pump, the top overflow port of the cyclone separator is connected with the feed inlet of a sand-water separator, and the bottom liquid phase outlet of the cyclone separator is connected with the water inlet of the slurry mixing tank; the sand-water separator is connected with the floating bead collecting tank through a spiral elevator, a material outlet of the floating bead collecting tank is connected with a feed inlet of a water filter, a solid material outlet of the water filter is connected with a hot air dryer, and a liquid phase outlet of the water filter is connected with a water inlet of the slurry mixing tank; the weak magnetic material outlets of the strong magnetic separator and the weak magnetic separator are connected with the feed inlet of a conditioning pool, the discharge outlet of the conditioning pool is connected with the feed inlet of the forming brick machine, and the conditioning pool comprises a stirring device.
It is easy to understand that the bead scraping device of the present invention can be any bead scraping device as long as it can scrape the floating beads into the floating bead storage tank, for example, it is easy for those skilled in the art to think that the floating beads are scraped off by a bar-shaped scraper manually. In order to realize automatic operation, the utility model further provides a simple and easy scheme: scrape the pearl device and include the chain that is driven by the sprocket to and install the scraper blade on the chain, when scraping pearl device function, the scraper blade can be scraped on the overflow mouth liquid level in size mixing pond, thereby will float and scrape in the floating pearl of size mixing pond overflow mouth and send to floating pearl holding tank.
As a further improvement of the utility model, the size mixing tank comprises a cavitation air-float stirrer.
As a further improvement of the utility model, the strong magnetic separator and the weak magnetic separator are semi-countercurrent wet magnetic separators.
As a further improvement of the present invention, the ball mill is a wet ball mill.
As a further improvement of the utility model, the hot air dryer is a closed belt type hot air dryer.
The utility model has the beneficial effects that: the fly ash recycling system provided by the utility model enables the comprehensive utilization rate of fly ash to be increased to 100%. The fly ash resource utilization system has high automation degree and convenient equipment maintenance, all equipment in the system adopts a fully-closed design, no dust overflow is caused, zero discharge of waste water and waste residues is realized, useful resources in the industrial solid waste fly ash are recovered while the industrial solid waste fly ash is treated, high-added-value fine utilization is realized, a fly ash front-end sorting process creates favorable conditions for subsequent utilization ways, the production cost of enterprises is greatly reduced, the energy is saved, the environment is protected, the core competitiveness of the enterprises is enhanced, and the requirements of resource recycling and recycling economy are met.
Drawings
FIG. 1 is a schematic structural diagram of a fly ash resource utilization system of the present invention.
FIG. 2 is a schematic structural diagram of the bead scraping device of the embodiment.
Labeled as: 1-slurry mixing tank, 101-bead scraping device, 1011-chain, 1012-scraper, 2-strong magnetic separator, 3-ball mill, 4-weak magnetic separator, 5-floating bead storage tank, 6-cyclone separator, 7-sand-water separator, 8-spiral elevator, 9-floating bead collection tank, 10-water filter, 11-hot air drier, 12-conditioning tank, 13-forming brick machine and 14-feeding pump.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
As shown in fig. 1 and 2, the fly ash recycling system of the present invention includes a slurry mixing tank 1; the bottom slurry outlet of the slurry mixing tank 1 is connected with the material inlet of the strong magnetic separator 2; the strong magnetic material outlet of the strong magnetic separator 2 is connected with the feed inlet of the ball mill 3; the discharge hole of the ball mill 3 is connected with the feed inlet of the weak magnetic separator 4; the overflow port of the slurry mixing tank 1 is provided with a bead scraping device 101, a floating bead storage tank 5 is arranged below the bead scraping device 101, and the bead scraping device 101 can scrape floating beads floating at the overflow port of the slurry mixing tank 1 and send the floating beads to the floating bead storage tank 5; the material outlet of the floating bead storage tank 5 is connected with the feed inlet of a cyclone separator 6 through a feeding pump 14, the top overflow port of the cyclone separator 6 is connected with the feed inlet of a sand-water separator 7, and the bottom liquid phase outlet of the cyclone separator 6 is connected with the water inlet of the slurry mixing tank 1; the sand-water separator 7 is connected with a floating bead collecting tank 9 through a spiral elevator 8, a material outlet of the floating bead collecting tank 9 is connected with a feed inlet of a water filter 10, a solid material outlet of the water filter 10 is connected with a hot air dryer 11, and a liquid phase outlet of the water filter 10 is connected with a water inlet of the slurry mixing tank 1; the weak magnetic material outlets of the strong magnetic separator 2 and the weak magnetic separator 4 are connected with the feed inlet of a conditioning tank 12, the discharge outlet of the conditioning tank 12 is connected with the feed inlet of a forming brick machine 13, and the conditioning tank 12 comprises a stirring device; scrape pearl device 101 and include the chain 1011 that is driven by the sprocket to and install the scraper blade 1012 on chain 1011, scrape pearl device 101 during the operation, scraper blade 1012 can scrape on the overflow mouth liquid level of mixing thick liquid pond 1, thereby will float and send to floating pearl holding tank 5 in the floating pearl of mixing thick liquid pond 1 overflow mouth is scraped. The slurry mixing tank 1 comprises a cavitation air flotation stirrer. The strong magnetic separator 2 and the weak magnetic separator 4 are semi-countercurrent wet magnetic separators. The ball mill 3 is a wet ball mill. The hot air dryer 11 is a closed belt type hot air dryer.
When the device works, dry ash collected into a field is conveyed into a size mixing tank 1 through a closed wind power pipeline (the size mixing tank adopts a fully closed design to avoid overflow of raised dust), then water is added for conditioning, the water-ash ratio is adjusted to 3: 1-5: 1, a cavitation air flotation stirrer is adopted for air flotation and size mixing while water is added (the rotational speed of the cavitation air flotation stirrer is 10-15 rpm, the cavitation air flotation stirrer has air flotation and stirring functions, a vacuum area is formed in water during rotation, air on the water surface is pumped to the water through a hollow pipeline, the cavitation air flotation stirrer is crushed into micro bubbles under the action of shearing force generated by rotation of blades, bubbles float upwards to accelerate the rising flow velocity of light materials such as floating beads, and the extraction efficiency of the floating beads is improved). And (3) standing the diluted and size-mixed materials in a closed tank for 5-10 min, wherein light materials (mainly floating beads and a small amount of carbon particles) float to the water surface, and heavy materials (mainly fly ash mortar) sink to the bottom of the tank and are converged to the center along with a cavitation air flotation stirrer. After standing and layering, scraping floating beads to a floating bead storage tank 5 by a light material through a bead scraping device 101; the heavy material is discharged from the bottom. At the moment, floating beads in the floating bead storage tank 5 still contain certain impurities, the wet floating beads are conveyed to the cyclone separator 6 through the feeding pump 14 for centrifugal separation, and the inlet pressure of the cyclone separator 6 is controlled to be 1.2-1.5 bar so as to ensure the flow rate and the separation effect in the cyclone separator 6; after being treated by the cyclone separator 6, wet floating beads (accounting for 20 percent of the feeding amount) overflow to the sand-water separator 7 through the top, and the floating beads in the sand-water separator 7 are conveyed to a floating bead collecting tank 9 through a spiral elevator 8; and the liquid phase at the bottom (accounting for 80 percent of the feeding amount) flows back and is used for diluting and tempering in the front-end size mixing tank 1. And filtering out moisture of the floating beads in the floating bead collecting tank 9 through a water filter 10, and reducing the moisture content to be below 30% through a hot air dryer 11 (the temperature is controlled to be 150-180 ℃ and the stay time is 0.5-1 h), and bagging and transporting for use.
On the other hand, heavy materials in the slurry mixing tank 1 automatically flow into the strong magnetic separator 2 by utilizing elevation, the strong magnetic separator 2 adopts a semi-countercurrent wet magnetic separator, the magnetic field intensity is 6000Gs (0.6T, 600 ten thousand A/m), the cylinder diameter is 1000mm, the cylinder length is 2500mm, the cylinder rotating speed is 22r/min, the processing capacity is 100-160 m3/h, and the motor power is 5.5 kW. After the ore pulp enters a magnetic field area, wherein strong magnetic minerals are adsorbed on the surface of a cylinder, weak magnetic and non-magnetic minerals are washed and discharged by water flow, the magnetic minerals adsorbed on the surface of the cylinder rotate along with the cylinder and are taken out of the magnetic field area, the magnetic minerals are washed into a concentrate tank by using washing water to finish separation operation, after the ore pulp is subjected to strong magnetic rough separation, the extraction amount of iron ore is 10% -15%, and the grade is 45% -50%; and conveying the iron ore slurry after roughing to a ball mill 3, wherein the barrel diameter of the ball mill 3 is 1800mm, the barrel length is 3000mm, the rotating speed of a barrel body is 25r/min, the ball loading amount is 12t, and the motor power is 11 kW. The ball mill 3 adopts a horizontal cylindrical design and comprises a feeding part, a discharging part, a rotating part (a speed reducer, a small transmission gear, a motor, an electric controller) and other main parts, a hollow shaft adopts a steel casting, an inner lining can be detached and replaced, a rotating large gear adopts casting hobbing for processing, and a wear-resistant lining plate is embedded in a cylinder body, so that the ball mill has good wear resistance. The materials are fed into the first bin of the mill by a feeding device through a hollow shaft, a step material plate or a corrugated lining plate is arranged in the first bin, steel balls with different specifications are filled in the first bin, the barrel rotates to generate centrifugal force to bring the steel balls to a certain height and then fall down, and the materials are impacted and ground. After the coarse grinding of the material in the first bin, the material enters the second bin through the single-layer compartment, a flat plate is embedded in the bin, a steel ball is arranged in the bin, and the material is further finely ground. Discharging the powder through a discharging plate to finish fine grinding operation, wherein after the fine grinding operation, the particle size of the coarse iron ore reaches 0.07-0.074mm, namely the requirement of 200 meshes, and the fine grinding operation is convenient for further selection. The iron ore slurry after rough concentration and fine grinding is conveyed to a weak magnetic separator, the magnetic separator adopts a self-designed and researched semi-countercurrent wet magnetic separator, the magnetic field intensity is 800Gs (0.08T, 80 ten thousand A/m), the cylinder diameter is 800mm, the cylinder length is 1800mm, the cylinder rotating speed is 28r/min, the processing capacity is 80-100 m3/h, and the motor power is 4.0 kW. After weak magnetic concentration, the extraction amount of iron ore is 5% -12%, the grade is 55% -65%, and the iron ore can be directly used for iron making or used as a requirement of cement iron correction raw materials, so that economic benefit is realized. Meanwhile, the low iron fly ash mortar after iron extraction is collected into a conditioning pool 11, and is mixed with cement, carbide slag and the like in a certain proportion, and then a brick machine 13 is formed to press baking-free bricks, so that 100% of fly ash resources are utilized.
Claims (6)
1. Fly ash utilization system as a resource, its characterized in that: comprises a pulp mixing tank (1); the bottom slurry outlet of the slurry mixing tank (1) is connected with the material inlet of the strong magnetic separator (2); the strong magnetic material outlet of the strong magnetic separator (2) is connected with the feed inlet of the ball mill (3); the discharge hole of the ball mill (3) is connected with the feed inlet of the weak magnetic separator (4); the overflow port of the slurry mixing tank (1) is provided with a bead scraping device (101), a floating bead storage tank (5) is arranged below the bead scraping device (101), and the floating beads floating at the overflow port of the slurry mixing tank (1) can be scraped into the floating bead storage tank (5) by the bead scraping device (101); a material outlet of the floating bead storage tank (5) is connected with a feed inlet of a cyclone separator (6) through a feeding pump (14), a top overflow port of the cyclone separator (6) is connected with a feed inlet of a sand-water separator (7), and a bottom liquid phase outlet of the cyclone separator (6) is connected with a water inlet of the slurry mixing tank (1); the sand-water separator (7) is connected with a floating bead collecting tank (9) through a spiral elevator (8), a material outlet of the floating bead collecting tank (9) is connected with a feed inlet of a water filter (10), a solid material outlet of the water filter (10) is connected with a hot air dryer (11), and a liquid phase outlet of the water filter (10) is connected with a water inlet of the slurry mixing tank (1); the weak magnetic material outlets of the strong magnetic separator (2) and the weak magnetic separator (4) are connected with the feed inlet of a conditioning tank (12), the discharge outlet of the conditioning tank (12) is connected with the feed inlet of a forming brick machine (13), and the conditioning tank (12) comprises a stirring device.
2. The fly ash resource utilization system of claim 1, which is characterized in that: scrape pearl device (101) including chain (1011) that are driven by the sprocket to and install scraper blade (1012) on chain (1011), scrape pearl device (101) when functioning, scraper blade (1012) can be scraped on the overflow mouth liquid level of mixing thick liquid pond (1), thereby will float and scrape the pearl that floats in mixing thick liquid pond (1) overflow mouth and send to in floating pearl holding tank (5).
3. The fly ash resource utilization system of claim 1, which is characterized in that: the slurry mixing tank (1) comprises a cavitation air flotation stirrer.
4. The fly ash resource utilization system of claim 1, which is characterized in that: the strong magnetic separator (2) and the weak magnetic separator (4) are semi-countercurrent wet magnetic separators.
5. The fly ash resource utilization system of claim 1, which is characterized in that: the ball mill (3) is a wet ball mill.
6. The fly ash resource utilization system of claim 1, which is characterized in that: the hot air dryer 11 is a closed belt type hot air dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120593505.9U CN215429583U (en) | 2021-03-24 | 2021-03-24 | Fly ash resource utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120593505.9U CN215429583U (en) | 2021-03-24 | 2021-03-24 | Fly ash resource utilization system |
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| Publication Number | Publication Date |
|---|---|
| CN215429583U true CN215429583U (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120593505.9U Expired - Fee Related CN215429583U (en) | 2021-03-24 | 2021-03-24 | Fly ash resource utilization system |
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| Country | Link |
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| CN (1) | CN215429583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798670A (en) * | 2022-04-24 | 2022-07-29 | 山东大学 | Sorting system and method for coal ash nonporous floating beads |
-
2021
- 2021-03-24 CN CN202120593505.9U patent/CN215429583U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798670A (en) * | 2022-04-24 | 2022-07-29 | 山东大学 | Sorting system and method for coal ash nonporous floating beads |
| CN114798670B (en) * | 2022-04-24 | 2023-01-20 | 山东大学 | Sorting system and method for coal ash nonporous floating beads |
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