CN114669387A - Column crushing winnowing sand making process system - Google Patents
Column crushing winnowing sand making process system Download PDFInfo
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- CN114669387A CN114669387A CN202210302559.4A CN202210302559A CN114669387A CN 114669387 A CN114669387 A CN 114669387A CN 202210302559 A CN202210302559 A CN 202210302559A CN 114669387 A CN114669387 A CN 114669387A
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- 239000004576 sand Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 90
- 239000000843 powder Substances 0.000 claims abstract description 62
- 239000004575 stone Substances 0.000 claims abstract description 55
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000000047 product Substances 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 239000006227 byproduct Substances 0.000 claims abstract description 8
- 238000003892 spreading Methods 0.000 claims abstract description 3
- 239000000428 dust Substances 0.000 claims description 36
- 230000008676 import Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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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
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a column crushing air separation sand making process method, which uses a column crushing air separation sand making process system and comprises the following steps: step one, primary sorting: uniformly spreading the raw materials into a high-efficiency sand selecting machine A for sorting; selecting stone powder from the materials as a system byproduct, conveying the stone powder to a stone powder bin, and conveying the materials with the particle size of less than or equal to 2.5mm after stone powder selection to a humidifying stirrer through a belt conveyor D; step two, sorting again: the high-efficiency sand selecting machine A selects residual 2.5-5 mm materials to enter a column crusher for size fraction resetting and shaping. Sorting out the residual 2.5-5 mm materials by the high-efficiency sand sorting machine A, and feeding the materials into a column crusher for size fraction resetting and shaping; when the sand enters the column crusher for size fraction resetting and shaping, the high-efficiency sand selecting machine A in the step one firstly performs small-mass sand separation with the size of less than or equal to 2.5mm, so that the problem that the product size distribution and the fineness modulus are higher than the standard requirement and are inconsistent is solved.
Description
Technical Field
The invention relates to a column crushing and air separation sand making process method, and belongs to the technical field of machine-made sand production and construction.
Background
When the aggregate production line is used for producing construction stones, tailings with the particle size being less than or equal to 5mm are generated, the tailings cannot be directly used as machine-made sand due to poor particle size, high stone powder content and poor particle size distribution, and are generally used as backfill materials at present, so that the economic value of the tailings is low, the tailings sometimes even become the burden of a sandstone factory, the utilization rate of mineral resources is greatly reduced, and the social environment is greatly influenced.
If the existing sand making process (the sand making process of machine-made sand with Chinese patent publication No. CN 111377631A) is adopted to treat the tailings, the adopted technology is as follows: conveying the sand making raw materials to an impact crusher through raw material conveying equipment to perform sand making operation; inputting machine-made sand formed after crushing, shaping and grinding by an impact crusher into an air screen through a vibrating feeder for screening; and for the tailings with the particle size of less than or equal to 5mm containing small-mass sand grains with the particle size of less than or equal to 2.5mm, the produced product has inconsistent particle size distribution and fineness modulus higher than the standard requirement. Meanwhile, the moisture content of fine stone powder in the tailings reaches about 3% which is higher, and the problems of low screening efficiency, screen blockage and the like of the air screen are easily caused.
Disclosure of Invention
In order to solve the technical problem, the invention provides a process method for producing sand by column crushing and air separation.
The invention is realized by the following technical scheme.
The invention provides a column crushing air separation sand making process method, which uses a column crushing air separation sand making process system and comprises the following steps:
step one, primary sorting: uniformly spreading the raw materials into a high-efficiency sand selecting machine A for sorting; selecting stone powder from the materials as a system byproduct, conveying the stone powder to a stone powder bin, and conveying the materials with the particle size of less than or equal to 2.5mm after stone powder selection to a humidifying stirrer through a belt conveyor D;
step two, sorting again: the high-efficiency sand selecting machine A selects residual 2.5-5 mm materials to enter a column crusher for size fraction resetting and shaping.
In the first step, the raw materials are conveyed to a distributing device A by a belt conveyor A and a bucket elevator A before being sorted by a high-efficiency sand selecting machine A, and the distributing device A uniformly distributes the raw materials into the high-efficiency sand selecting machine A for sorting.
In the second step, the method further comprises: after the grain size is reset and shaped by a column crusher, the grain size is conveyed to a distributing device B by a belt conveyor B and a bucket elevator B, and the grain size is uniformly distributed into a high-efficiency sand selecting machine B through the distributing device B for secondary sorting; sorting out the sand with the size less than or equal to 2.5mm by the high-efficiency sand sorting machine B, conveying the sand to a humidifying stirrer for stirring and humidifying to finally obtain high-quality machine-made sand with a water-containing state and dry and saturated surface and uniform mixing; then the mixture is conveyed to a finished product bin through a belt conveyor E; the high-efficiency sand selecting machine B selects 2.5-5 mm of sand, returns to the column crusher again through the belt conveyor C and resets and shapes the size fraction again; and conveying the redundant stone powder part as a by-product of the system to a stone powder bin.
The column crushing, winnowing and sand making process system comprises a column crusher;
a 2.5-5 mm material outlet of the high-efficiency sand selecting machine A is connected to a material inlet of a column crusher.
The efficient sand separator comprises a sand separator A, a sand powder part outlet of the efficient sand separator A is connected to a material inlet of the double cyclone separator A, a material outlet of the double cyclone separator A is communicated with a sand powder bin, a material outlet of the sand powder bin is communicated with a bin pump, and the bin pump is communicated to an ash tank.
Still include distributing device A, sand machine A's material import and distributing device A material export intercommunication are selected to the high efficiency.
The device also comprises a raw material adjusting bin which is connected to a material inlet of the distributing device A through a belt conveyor A and a bucket elevator A.
The device also comprises a belt conveyor D and a humidifying stirrer, wherein a material outlet which is not more than 2.5mm of the high-efficiency sand selecting machine A is connected to one end of the belt conveyor D, and the other end of the belt conveyor D is connected to a material inlet of the humidifying stirrer.
The humidifying stirrer is characterized by further comprising a belt conveyor E, a material outlet of the humidifying stirrer is connected to one end of the belt conveyor E, and the other end of the belt conveyor E is connected to the finished product bin.
The device also comprises a belt conveyor B, a bucket elevator B and a distributing device B, wherein the outlet of the column crusher is connected to the bottom of the bucket elevator B through the belt conveyor B, and the top of the bucket elevator B is connected to the distributing device B; the device also comprises a high-efficiency sand selecting machine B, a belt conveyor C and a double-cyclone separator B, wherein a material outlet of the distributor B is connected to a material inlet of the high-efficiency sand selecting machine B, and a material outlet which is less than or equal to 2.5mm of the high-efficiency sand selecting machine B is connected to a humidifying stirrer; the stone powder part of the high-efficiency sand selecting machine B is connected to a material inlet of a double cyclone separator B, and an outlet of the double cyclone separator B is connected to a stone powder bin; a material outlet of 2.5 mm-5 mm of the high-efficiency sand selecting machine B is connected to a material inlet of the column crusher through a belt conveyor C.
And air outlets of the double cyclone separator A and the double cyclone separator B are correspondingly communicated with a circulating fan A and a circulating fan B.
The dust collector also comprises a negative pressure dust removal subsystem and a dust collector, wherein the outlets of the circulating fan A and the circulating fan B are connected to the negative pressure dust removal subsystem, pipelines are arranged on each discharging point, the pipelines are connected to the negative pressure dust removal subsystem for collecting dust, the outlet of the negative pressure dust removal subsystem is connected to the material inlet of the dust collector through a pipeline, and the material inlet of the dust collector is connected to the material inlet of the stone dust bin through a pipeline.
The invention has the beneficial effects that: sorting out the residual 2.5-5 mm materials by the high-efficiency sand sorting machine A, and feeding the materials into a column crusher for size fraction resetting and shaping; when the sand enters the column crusher for size fraction resetting and shaping, the high-efficiency sand selecting machine A in the step one firstly performs small-mass sand separation with the size of less than or equal to 2.5mm, so that the problem that the product size distribution and the fineness modulus are higher than the standard requirement and are inconsistent is solved.
Drawings
FIG. 1 is a schematic diagram of a process system layout of the present invention;
in the figure: 1-column crusher; 2-selecting a sand machine A with high efficiency; 3-double cyclone separator A; 4-stone powder bin; 5-bin pump; 6-distributing device A; 7-raw material adjusting stock bin; 8-belt conveyor a; 9-bucket elevator A; 10-belt conveyor D; 11-a humidifying agitator; 12-belt conveyor E; 13-belt conveyor B; 14-bucket elevator B; 15-distributor B; 16-high-efficiency sand selecting machine B; 17-belt conveyor C; 18-double cyclone separator B; 19-circulating fan A; 20-circulating fan B; 21-a negative pressure dust removal subsystem; 22-dust remover.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1.
The invention relates to a column crushing air separation sand making process system, which comprises the following steps:
a column crusher 1 which can crush tailings with the diameter less than or equal to 5 mm;
the high-efficiency sand selecting machine A2 can be used for sorting tailings with the thickness less than or equal to 5mm, and a material outlet with the thickness of 2.5-5 mm of the high-efficiency sand selecting machine A2 is communicated with a material inlet of the column crusher 1 through a pipeline.
As the material inlet of the column crusher 1 is communicated with the material outlet of 2.5 mm-5 mm of the high-efficiency sand selecting machine A2, the column crusher 1 only crushes 2.5 mm-5 mm separated by the high-efficiency sand selecting machine A2, the particle size distribution and the fineness modulus of the produced sandstone product are consistent with the standard requirement, and the problems that the particle size distribution and the fineness modulus of the produced product are inconsistent with the standard requirement because no equipment for separating tailings with the particle size of less than or equal to 5mm is arranged at the inlet of the first vertical shaft impact crusher are solved.
A stone powder part discharge port of the high-efficiency sand selecting machine A2 is provided with a double cyclone separator A3 through a pipeline in a communicating manner, a material outlet of the double cyclone separator A3 is provided with a stone powder bin 4 through a pipeline in a communicating manner, a material outlet of the stone powder bin 4 is provided with a bin pump 5 through a pipeline in a communicating manner, and the bin pump 5 is communicated with an ash tank, so that the stone powder part separated by the high-efficiency sand selecting machine A2 is conveyed to the stone powder bin 4 as a system by-product and is stored in the ash tank through the bin pump 5.
The material distributor A6 is also included, the material inlet of the high-efficiency sand selecting machine A2 is communicated with the material outlet of the material distributor A6 through a pipeline, and the material distributor A6 uniformly distributes the raw materials into the high-efficiency sand selecting machine A2 for separation; the device also comprises a raw material adjusting bin 7, wherein the raw material adjusting bin 7 is connected to a material inlet of a distributing device A6 through a belt conveyor A8 and a bucket elevator A9, so that tailings which are stored in the raw material adjusting bin 7 and are less than or equal to 5mm are conveyed into the distributing device A6 through the belt conveyor A8 and the bucket elevator A9.
The device also comprises a belt conveyor D10 and a humidifying stirrer 11, wherein a material outlet which is less than or equal to 2.5mm of the high-efficiency sand selecting machine A2 is connected to one end of the belt conveyor D10 through a pipeline, and the other end of the belt conveyor D10 is connected to a material inlet of the humidifying stirrer 11; the belt conveyor D10 is transported to the humidifying agitator 11 by the belt conveyor D10 with the diameter less than or equal to 2.5mm which is sorted by the high-efficiency sand selector A2 for humidifying.
The humidifying stirrer also comprises a belt conveyor E12, a material outlet of the humidifying stirrer 11 is connected to one end of the belt conveyor E12, the other end of the belt conveyor E12 is connected to the finished product bin, and the finished product humidified in the humidifying stirrer 11 is conveyed to the finished product bin for storage through the belt conveyor E12.
The device also comprises a belt conveyor B13, a bucket elevator B14 and a distributor B15, wherein the outlet of the column crusher 1 is connected to the bottom of a bucket elevator B14 through a belt conveyor B13, and the top of a bucket elevator B14 is connected to the distributor B15;
the device also comprises a high-efficiency sand selecting machine B16, a belt conveyor C17 and a double-cyclone separator B18, wherein a material outlet of a distributor B15 is connected to a material inlet of a high-efficiency sand selecting machine B16, and a material outlet which is less than or equal to 2.5mm of a high-efficiency sand selecting machine B16 is connected to the humidifying stirrer 11 through a pipeline; the stone powder part of the high-efficiency sand selector B16 is connected to the material inlet of the double cyclone separator B18, and the outlet of the double cyclone separator B18 is connected to the stone powder bin 4 through a pipeline; a 2.5 mm-5 mm material outlet of the high-efficiency sand selector B16 is connected to a material inlet of the column crusher 1 through a belt conveyor C17.
The tops of the double cyclone separator A3 and the double cyclone separator B18 are correspondingly communicated with a circulating fan A19 and a circulating fan B20 through pipelines; still include negative pressure dust removal subsystem 21 and dust remover 22, circulating fan A19, the export of circulating fan B20 is said and is linked to negative pressure dust removal subsystem 21, install the pipeline on each unloading point, negative pressure dust removal subsystem 21 is linked to the pipeline and is carried out the dust and collect, the export of negative pressure dust removal subsystem 21 is said and is linked to dust remover 22 material import, 4 material intakes in stone dust storehouse are linked to the import of dust remover 22 material through the pipeline, transport the mountain flour to stone flour storehouse 4 through dust remover 22, the mountain flour of stone flour storehouse 4 passes through storehouse pump 5 and carries to the ash can, thereby guarantee that whole sand making building does not have the raise dust excessive in the operation process, realize environmental protection production.
The invention relates to a column crushing winnowing sand making process method, which uses a column crushing winnowing sand making process system and comprises the following steps:
step one, primary sorting: tailing stone chip raw materials with the particle size of less than or equal to 5mm are conveyed to a distributing device A6 by a belt conveyor A8 and a bucket elevator A9, and the distributing device A6 uniformly distributes the raw materials into a high-efficiency sand selecting machine A2 for sorting; selecting stone powder from the materials as a system byproduct and conveying the stone powder to a stone powder bin 4, and conveying the materials with the particle size of less than or equal to 2.5mm after stone powder selection to a humidifying stirrer 11 through a belt conveyor D10;
step two, sorting again: sorting out the residual 2.5-5 mm materials by the high-efficiency sand selector A2, and feeding the materials into the column crusher 1 for size fraction resetting and shaping; after the size fraction resetting and shaping are carried out by the column crusher 1, the mixture is conveyed to a distributor B15 by a belt conveyor B13 and a 2-bucket elevator B14, and is uniformly dispersed into a high-efficiency sand selector B16 through a distributor B15 for secondary sorting; the high-efficiency sand selecting machine B16 selects the sand with the size less than or equal to 2.5mm, and transmits the sand to a humidifying stirrer 11 for stirring and humidifying, finally, high-quality machine-made sand with a water content state in a surface dry saturation state and uniform mixing is obtained, and the problems that the water content of fine stone powder in tailings is about 3% higher, and the air sieve is easy to generate faults of low sieving efficiency, sieve blockage and the like are solved; then conveyed to a finished product bin through a belt conveyor E12; 2.5-5 mm of the high-efficiency sand selector B16 is sorted out and returned to the column crusher 1 again through the belt conveyor C17 for secondary size fraction resetting and shaping; the redundant stone powder part is used as a by-product of the system and is conveyed to a stone powder bin 4; when the sand enters the column crusher 1 for size fraction resetting and shaping, the high-efficiency sand selector A2 in the step one firstly carries out small-mass sand separation with the size of less than or equal to 2.5mm, so that the problem that the product size distribution and the fineness modulus are not consistent with the standard requirement is solved.
When the first step and the second step are carried out, the dust removal subsystem 21 is pressed to collect dust of each discharge point through the pipeline of each discharge point, the stone powder is conveyed to the stone powder bin 4 through the dust remover 22, and the stone powder of the stone powder bin 4 is conveyed to the ash tank through the bin pump 5, so that the whole sand making building is ensured to have no raised dust overflow in the operation process, and the environment-friendly production is realized.
As used herein, connection may be through a hollow conduit or outlet and inlet correspondence.
The technology is applied to 500 million tons of building aggregate production line projects produced in Shaanxi Jingyang land switches.
The model of the column crusher is ZSJ 300S-II, the treatment capacity is 350-400 t/h, the installed power is 2 multiplied by 220kw, the installed power of the traditional vertical shaft type impact crushing when the treatment capacity is 150t/h is 2 multiplied by 250kw, and the unit energy production energy consumption of the crushing equipment is saved by 67% compared with that of the traditional equipment.
The high-efficiency multistage sand separator organically combines a static wind separation technology and a dynamic wind separation technology, and has the following advantages compared with traditional screening equipment such as an air screen and the like:
the sand selecting machine has excellent sand selecting performance.
Static wind separation is used for mechanical sand separation and coarse particle separation (coarse removal), the materials are scattered by a drip plate, and meanwhile, qualified mechanical sand is selected from the scattered materials by high-speed air flow. The high-speed air flow has large kinetic energy and high separation efficiency, can effectively screen without blockage under the condition of water content of 3-4 percent, and has no vibration part, no screen device, no noise, no blockage and high stability in the whole process.
② has excellent powder control performance.
The separation of sand and stone powder (powder control) is carried out by dynamic air separation. The dynamic wind separation with high speed airflow as power is to separate all stone powder from material and to leave some stone powder with dynamic separator based on the required stone powder content in the sand. The powder control technology has very large powder selection capacity, is suitable for materials with high powder content, has very strong separation capacity of coarse powder and fine powder, and has strong adaptability to the condition that the water content of the materials is 3-4%.
And no wearing parts.
Compared with traditional vibrating screening equipment, the high-efficiency multistage sand selecting machine has no vibrating part when working, the impact and friction of the equipment body and materials are limited, and the materials are difficult to form fault abrasion on the equipment.
And fourthly, the online adjustment of the fineness modulus and the powder content of the machine-made sand can be realized.
In the process of coarse-removing grading particle size and powder control of the high-efficiency multi-stage sand selecting machine, the powder removing amount is determined by the flow of high-speed air flow and the rotating speed of the dynamic sorting device, so that the aim of adjusting the fineness modulus and the powder content of machine-made sand can be achieved by setting different air flow and rotating speeds of the sorting device. The adjustment can be directly realized on the control panel, and the online adjustment can be realized under the condition of no shutdown.
Taking Jingyang project as an example, the installed power of a sand making building is 1200kw, the operation energy consumption is calculated according to 80% of the installed power, the unit productivity energy consumption is 2.74t/h, the installed power of the traditional sand making building with the yield of 150t/h is about 1000kw, the converted single-machine production energy consumption is 5.33t/h, and the system can save electric energy by 49% compared with the traditional sand making building.
Claims (10)
1. A column crushing air separation sand making process method uses a column crushing air separation sand making process system, and is characterized by comprising the following steps:
step one, primary sorting: uniformly spreading the raw materials into a high-efficiency sand selecting machine A (2) for sorting; selecting stone powder from the materials as a system by-product, conveying the stone powder to a stone powder bin (4), and conveying the materials with the particle size of less than or equal to 2.5mm after stone powder selection to a humidifying stirrer (11) through a belt conveyor D (10);
step two, sorting again: the high-efficiency sand selecting machine A (2) selects the residual 2.5-5 mm materials to enter the column crusher (1) for size fraction resetting and shaping.
2. The column crushing air separation sand making process method as claimed in claim 1, wherein the step of: in the first step, the raw materials are conveyed to a distributor A (6) by a belt conveyor A (8) and a bucket elevator A (9) before being sorted by a high-efficiency sand selecting machine A (2), and the raw materials are uniformly dispersed into the high-efficiency sand selecting machine A (2) by the distributor A (6).
3. The column crushing air separation sand making process as claimed in claim 1, wherein: in the second step, the method further comprises: after being subjected to size fraction resetting and shaping by a column crusher (1), the particles are conveyed to a distributor B (15) by a belt conveyor B (13) and a bucket elevator B (14) of a bucket conveyor (2), and are uniformly dispersed into a high-efficiency sand selecting machine B (16) through the distributor B (15) for secondary separation; sorting out sand with the size less than or equal to 2.5mm by using a high-efficiency sand sorting machine B (16), and conveying the sand to a humidifying stirrer (11) for stirring and humidifying to finally obtain high-quality machine-made sand with a water-containing state and dry and saturated surface and uniform mixing; then conveyed to a finished product bin through a belt conveyor E (12); the high-efficiency sand selecting machine B (16) is used for selecting 2.5-5 mm, and is conveyed back to the column crusher (1) again through the belt conveyor C (17) for secondary size fraction resetting and shaping; the redundant stone powder part is used as a by-product of the system and is conveyed to a stone powder bin (4).
4. The column crushing winnowing sand making process as claimed in any one of claims 1 to 3, characterized in that: the column crushing winnowing sand making process system comprises a column crusher (1);
the high-efficiency sand selecting machine A (2) is connected with a material outlet of 2.5 mm-5 mm of the high-efficiency sand selecting machine A (2) to a material inlet of the column crusher (1).
5. The column crushing air separation sand making process method as claimed in claim 4, wherein the step of: the sand separator is characterized by further comprising a double-cyclone separator A (3), a stone powder part discharging port of the high-efficiency sand separator A (2) is connected to a material inlet of the double-cyclone separator A (3), a stone powder bin (4) is installed in a material outlet of the double-cyclone separator A (3) in a communicating mode, a bin pump (5) is installed in a material outlet of the stone powder bin (4) in a communicating mode, and the bin pump (5) is communicated to the ash tank.
6. The column crushing air separation sand making process method as claimed in claim 5, wherein the step of: still include distributing device A (6), the material import and the distributing device A (6) material export intercommunication of sand machine A (2) are selected to the high efficiency.
7. The column crushing air separation sand making process method as claimed in claim 6, wherein: the device also comprises a raw material adjusting bin (7), wherein the raw material adjusting bin (7) is connected to a material inlet of the distributor A (6) through a belt conveyor A (8) and a bucket elevator A (9).
8. The column crushing air separation sand making process as claimed in claim 7, characterized in that: the device is characterized by also comprising a belt conveyor D (10) and a humidifying stirrer (11), wherein a material outlet which is less than or equal to 2.5mm of the high-efficiency sand selecting machine A (2) is connected to one end of the belt conveyor D (10), and the other end of the belt conveyor D (10) is connected to a material inlet of the humidifying stirrer (11); the humidifying stirrer also comprises a belt conveyor E (12), a material outlet of the humidifying stirrer (11) is connected to one end of the belt conveyor E (12), and the other end of the belt conveyor E (12) is connected to the finished product bin.
9. The column crushing air separation sand making process as claimed in claim 8, characterized in that: the device is characterized by also comprising a belt conveyor B (13), a bucket elevator B (14) and a distributor B (15), wherein the outlet of the column crusher (1) is connected to the bottom of the bucket elevator B (14) through the belt conveyor B (13), and the top of the bucket elevator B (14) is connected to the distributor B (15); the device also comprises a high-efficiency sand selecting machine B (16), a belt conveyor C (17) and a double-cyclone separator B (18), wherein a material outlet of a material distributor B (15) is connected to a material inlet of the high-efficiency sand selecting machine B (16), and a material outlet which is less than or equal to 2.5mm of the high-efficiency sand selecting machine B (16) is connected to the humidifying stirrer (11); the stone powder part of the high-efficiency sand selecting machine B (16) is connected to a material inlet of a double cyclone separator B (18), and an outlet of the double cyclone separator B (18) is connected to a stone powder bin (4); a material outlet of 2.5 mm-5 mm of the high-efficiency sand selecting machine B (16) is connected to a material inlet of the column crusher (1) through a belt conveyor C (17).
10. The column crushing air separation sand making process as claimed in claim 9, characterized in that: the air outlets of the double cyclone separator A (3) and the double cyclone separator B (18) are correspondingly communicated with a circulating fan A (19) and a circulating fan B (20); still include negative pressure dust removal subsystem (21) and dust remover (22), negative pressure dust removal subsystem (21) are linked in the export of circulating fan A (19), circulating fan B (20), install the pipeline on each discharge point, the pipeline is linked to negative pressure dust removal subsystem (21) and is carried out the dust and collect, negative pressure dust removal subsystem (21) export is linked to dust remover (22) material import through the pipeline, dust remover (22) material import is linked to stone dust storehouse (4) material import through the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210302559.4A CN114669387A (en) | 2022-03-25 | 2022-03-25 | Column crushing winnowing sand making process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210302559.4A CN114669387A (en) | 2022-03-25 | 2022-03-25 | Column crushing winnowing sand making process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114669387A true CN114669387A (en) | 2022-06-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116037293A (en) * | 2023-02-08 | 2023-05-02 | 中电建十一局工程有限公司 | A short-process high-quality machine-made sand processing technology |
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| CN116037293A (en) * | 2023-02-08 | 2023-05-02 | 中电建十一局工程有限公司 | A short-process high-quality machine-made sand processing technology |
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