CN109127086B - Environment-friendly exquisite sand making building station system - Google Patents
Environment-friendly exquisite sand making building station system Download PDFInfo
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- CN109127086B CN109127086B CN201811112998.9A CN201811112998A CN109127086B CN 109127086 B CN109127086 B CN 109127086B CN 201811112998 A CN201811112998 A CN 201811112998A CN 109127086 B CN109127086 B CN 109127086B
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- 239000004576 sand Substances 0.000 title claims abstract description 110
- 239000000843 powder Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims description 47
- 239000000428 dust Substances 0.000 claims description 45
- 239000002131 composite material Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 11
- 238000012216 screening Methods 0.000 description 10
- 238000007493 shaping process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 6
- 239000004574 high-performance concrete Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 241000219112 Cucumis Species 0.000 description 4
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 4
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The patent discloses an environmental protection fine product system sand building station system, the discharge gate of feeding aggregate bin and the broken feed inlet pipe connection of overflow type vertical scroll, the broken discharge gate of overflow type vertical scroll and the feed inlet pipe connection of elementary selection powder machine, plate conveyor arranges in the below of the discharge gate of elementary selection powder machine, beneficial effect: 1. the grading and fineness can be controlled according to the demands of customers, so that different selling prices of products with different specifications are obtained, and better economic effect is obtained; 2. the productivity is high, the finished product grain shape is excellent, and the sand yield is high; 3. the stone powder content and the water content in the sand need to be controllable.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to an environment-friendly exquisite sand making building station system.
Background
Along with the continuous development of the economy in China, various large-scale building projects are gradually increased, particularly the rapid development of high-speed rails, the continuous emergence of extra-high-rise buildings and large-span bridges is realized, and the performance requirements on concrete are higher and higher; the sand is used as the raw material with the highest proportion in the concrete, and the performance of the sand directly influences the performance of the high-performance concrete. In the existing major engineering, almost all important structures require high-performance concrete, and the sand of the high-performance concrete can ensure the performance of the high-performance concrete by adopting natural sand. Natural sand is used as non-renewable resources, the natural sand is exhausted, the exploitation of the natural sand causes serious damage to the environment, a series of environmental protection problems and social problems are brought, and the preparation of concrete by adopting high-quality fine sand to replace the natural sand has become an important trend of social development.
The machine-made sand refers to rock particles with the particle size smaller than 4.75 mm, which are produced by mechanical crushing and screening, and high-performance concrete has higher requirements on the machine-made sand, including fineness modulus, particle shape, water content, powder content and the like.
The high-quality machine-made sand is used for concrete production instead of the traditional sand stone material, and can improve the strength and various indexes of the concrete on the premise of reducing the cement consumption, thereby strengthening the quality and the service life of the house construction, reducing the carbon dioxide emission and haze, and being popular with industry experts and people.
The sand making performance of the present stage is better than that of the building type sand making station, the sand making process and the used equipment of each manufacturer are different, and the production process and the equipment are combined to have the following defects.
1. The air screen is adopted for screening, although the vibration is small, the energy consumption is low; but the screening precision is low, the efficiency is low, the productivity is low, and the requirements of high productivity and high efficiency are not met;
2. the equipment configuration is single, and only single sand making or shaping is performed; when only a sand making machine is used, the sand yield is high but the grain shape is poor, and the quality of finished products is poor; when only a shaping machine is used, the finished sand has good shape, but the sand yield is low, the returning charge is more, the crushing efficiency is low, and the productivity is low.
3. The air screen is used for adjusting the thickness proportion of the finished sand by wind power without a special coarse and fine sand adjusting channel, so that the thickness proportion of the finished sand is not easy to control, and the grading and fineness modulus of the sand are not easy to ensure;
4. some equipment is configured for sand making, although the sand making effect is good, the process is too complex, the equipment is more, the arrangement is complicated, the equipment cost is increased, the whole building station structure is huge, the height is greatly increased, the net height of the building station is even more than 20 meters, and the stability and the safety of the building station are greatly reduced;
5. some belts are provided with belt scales, the weight of coarse and fine sand is measured by a weighing method to control the grading and fineness modulus of the finished sand, and the method has a complex structure and more equipment; the belt scale has limited precision and not very high accuracy, and various rock hardness and toughness are different, the proportion of coarse and fine sand after being crushed is also different, and finally, the grading and fineness modulus of sand can be accurately tested after screening.
6. The powder selecting equipment has poor performance and unsatisfactory dust control.
Disclosure of Invention
The invention provides an environment-friendly exquisite sand making building station system, which is designed and developed for the purpose of: 1. the grading and fineness can be controlled according to the demands of customers, so that different selling prices of products with different specifications are obtained, and better economic effect is obtained; 2. high productivity, excellent finished product grain shape and high sand yield.
The invention provides the following technical scheme: the utility model provides an environmental protection fine product system sand building station system, the discharge gate of feeding aggregate bin 1 and the broken 2 feed inlet pipe connection of overflow type vertical scroll, the broken 2 feed inlet pipe connection of overflow type vertical scroll and elementary selection powder machine 5, plate conveyor 6 is arranged in the below of the discharge gate of elementary selection powder machine 5, plate conveyor 6 with bucket elevator 7 lower extreme feed inlet is connected, and the material that the discharge gate was discharged on bucket elevator 7 is accepted to the feed inlet of vibration dispersion machine 8, the discharge gate of vibration dispersion machine 8 is connected with impact type compound selection powder machine 9, impact type compound selection powder machine 9 is connected with triaxial horizontal elliptic screen 11, the discharge gate and the wet mixer 14 of triaxial horizontal elliptic screen 11 are connected.
The triaxial horizontal elliptic screen 11 comprises an upper screen, a middle screen and a bottom screen, wherein an upper screen outlet is arranged below the upper screen, a middle screen outlet is arranged below the middle screen, a bottom screen outlet is arranged below the bottom screen, the upper screen outlet is connected with a feed inlet of the feed collecting bin 1, the middle screen outlet is connected with a first three-way valve 13 and then is divided into two paths, one path is connected with the feed inlet of the feed collecting bin 1, and the other path is connected with a high-speed vertical shaft breaker 3; the outlet of the middle layer screen is connected with a second three-way valve 12 and then is divided into two paths, one path is connected with the high-speed vertical shaft breaker 3, and the other path is connected with the wet mixer 14; the plate conveyor 6 is arranged below the high-speed vertical shaft crusher 3.
The environment-friendly fine sand making building station system further comprises an inertial dust separator 16 and a dust remover 17, wherein a feed inlet of the inertial dust separator 16 is connected with the composite powder separator 9 and the triaxial horizontal elliptical screen 11, and a discharge outlet of the inertial dust separator 16 is connected with a feed inlet of the dust remover 17.
The technical scheme adopted by the invention has the following beneficial effects: 1. a triaxial horizontal elliptic screen is adopted: the screening is accurate, the structure is compact, the screening efficiency is high, the screening efficiency is 2 times of that of a circular vibrating screen, the maximum productivity of the sand below 5mm can reach 300t/h, and the requirements of productivity, high precision and high efficiency sand making building stations can be improved.
2. Adopting a combination configuration of a waterfall type vertical shaft crusher and a high-speed vertical shaft crusher, wherein the waterfall type vertical shaft crusher is used for crushing a shaping belt, the contribution sand can reach 60%, and the produced sand particle shape is good; the high-speed vertical shaft is broken to concentrate on sand production, and particularly, 3-10 mm of the difficult-to-crush melon and rice stones in a crushing system are high in crushing efficiency, so that returning materials are reduced, and a driving motor can convert frequency; the two devices are organically combined to produce sand, so that the quality of the sand is improved, and meanwhile, the production capacity of the system is greatly improved.
3. The electric control three-way proportion regulating valve is arranged, so that the proportion of coarse sand with the thickness of 3-5 mm entering the finished sand can be easily controlled, and the purposes of regulating the gradation and fineness modulus of the finished sand are achieved.
The grain composition accords with the GB/T1468-2011 standard of building sand, and can be regulated and controlled to reach the standard of sand in zone 2;
the content of the granular needle-shaped particles is less than or equal to 5 percent; the fineness modulus is 2.3-3 and the stability can reach +/-0.1; the stone powder content is 3-10% adjustable; the water content is 3-5% adjustable; the performance indexes of the high-quality sand are all the necessary conditions for producing high-performance concrete.
The system has the following advantages: 1. the grading and fineness can be controlled according to the demands of customers, so that different selling prices of products with different specifications are obtained, and better economic effect is obtained; 2. the productivity is high, the finished product grain shape is excellent, and the sand yield is high; 3. the sand is subjected to wet mixing treatment by the wet mixer 14, and the stone powder content and the water content in the sand are controllable as required.
Drawings
FIG. 1 is a schematic diagram of the system of the environment-friendly fine sand making building station of the invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
In fig. 1: the device comprises a feeding aggregate bin 1, a waterfall type vertical shaft crusher 2, a high-speed type vertical shaft crusher 3, a primary powder concentrator blower 4, a primary powder concentrator 5, a plate conveyor 6, a bucket elevator 7, a vibration dispersing machine 8, an impact type composite powder concentrator 9, an impact type composite powder concentrator blower 10, a triaxial horizontal elliptic screen 11, a second three-way valve 12, a first three-way valve 13, a wet mixer 14, an inertial dust separator 16, a dust remover 17, a dust remover special blower 18 and a finished product sand bin 19.
The utility model provides an environment-friendly fine sand making building station system, the discharge gate of feeding aggregate bin 1 is broken 2 feed inlet pipe connection with the overflow type vertical scroll, the broken 2 discharge gate of overflow type vertical scroll is broken 2 and is connected with the feed inlet pipe connection of elementary selection powder machine 5, and board-like conveyer 6 is arranged in the below of the discharge gate of elementary selection powder machine 5, board-like conveyer 6 accept the discharge of the discharge gate of elementary selection powder machine 5. The plate conveyor 6 is connected with a feed inlet at the lower end of the bucket elevator 7, the primary powder concentrator 5 is provided with a primary powder concentrator blower 4, and the primary powder concentrator blower 4 gives sufficient wind power to the primary powder concentrator 5.
The bucket elevator 7 is used for carrying out lifting type conveying on the materials obtained by the plate conveyor 6 from bottom to top, a material outlet at the upper end of the bucket elevator 7 is connected with a material outlet of the vibration dispersing machine 8, the material outlet of the vibration dispersing machine 8 is connected with the impact type composite powder concentrator 9, the impact type composite powder concentrator 9 is connected with the triaxial horizontal elliptic screen 11, and the material outlet of the triaxial horizontal elliptic screen 11 is connected with the wet mixer 14. The impact type composite powder concentrator 9 is provided with an impact type composite powder concentrator blower 10, and the impact type composite powder concentrator blower 10 supplies wind power to the impact type composite powder concentrator 9.
The triaxial horizontal elliptic screen 11 comprises an upper screen, a middle screen and a bottom screen, wherein an upper screen outlet is arranged below the upper screen, a middle screen outlet is arranged below the middle screen, a bottom screen outlet is arranged below the bottom screen, the upper screen outlet is connected with a feed inlet of the feed collecting bin 1, the middle screen outlet is connected with a first three-way valve 13 and then is divided into two paths, one path is connected with the feed inlet of the feed collecting bin 1, and the other path is connected with a high-speed vertical shaft breaker 3; the outlet of the middle layer screen is connected with a second three-way valve 12 and then is divided into two paths, one path is connected with the high-speed vertical shaft breaker 3, and the other path is connected with the wet mixer 14; the plate conveyor 6 is arranged below the high-speed vertical shaft crusher 3. A plate conveyer 15 special for the wet mixer is arranged below the wet mixer 14, and the plate conveyer 15 special for the wet mixer conveys materials to a finished sand bin 19.
The environment-friendly fine sand making building station system further comprises an inertial dust separator 16 and a dust remover 17, wherein a feed inlet of the inertial dust separator 16 is connected with the composite powder separator 9 and the triaxial horizontal elliptical screen 11, and a discharge outlet of the inertial dust separator 16 is connected with a feed inlet of the dust remover 17. The dust remover 17 is provided with a dust remover specific blower 18, and the dust remover specific blower 18 provides wind power for the dust remover 17.
The environment-friendly fine sand making building station mainly comprises building station steel members, a waterfall type vertical shaft crusher 2, a high-speed vertical shaft crusher 3, a primary powder concentrator 5, a plate conveyor 6, a bucket elevator 7, a vibration disperser 8, an impact composite powder concentrator 9, a triaxial horizontal elliptic screen 11, a second three-way valve 12, a first three-way valve 13, a wet mixer 14, an inertial dust separator 16, a dust remover 17 and the like.
The steel structure of the building station is a mounting support piece of the whole building station equipment and consists of a crushing building and a powder tank building. The crushing building is divided into two layers, wherein a first layer is provided with a spillover vertical shaft crusher 2, a high-speed vertical shaft crusher 3, a primary powder separator 5, a plate conveyor 6 and a bucket elevator 7; the second layer is provided with an impact composite powder concentrator 9, a triaxial horizontal elliptic screen 11, a second three-way valve 12 and a first three-way valve 13. The powder tank building is divided into three layers, wherein the first layer is overhead for dust loading and transporting, the second layer is provided with a powder tank 20, and the third layer is provided with a dust remover 17.
The overflow vertical shaft crusher 2 is used for crushing and shaping, the contribution rate of sand can reach 60%, and the produced sand has good sand shape and high quality.
The high-speed vertical shaft crusher 3 is used for concentrating sand, and particularly crushing 3-10 mm of difficult-to-crush melon and rice stones in a system, so that the crushing efficiency is high, the returning charge of the system is reduced, the sand yield can reach 85%, and the high-speed vertical shaft crusher is key equipment for improving the sand production efficiency; the driving motor can change frequency to adjust the proportion of fine sand less than or equal to 3mm, and is one of the links of finished sand grading and fineness modulus adjustment.
The primary powder concentrator 5 is used for concentrating and dedusting through the sand after primary crushing by wind power, so that the dedusting effect is improved, and the motor of the blower 4 can be used for frequency conversion to adjust the wind speed and the wind power.
The plate conveyor 6 sends the crushed materials to the bucket elevator port, and the materials are conveyed in a fully-sealed structure.
The bucket elevator 7 delivers crushed material to the top floor, an important component of the building stand arrangement.
The vibration disperser 8 uniformly conveys and disperses the materials, so that the lower-level winnowing of the materials is facilitated.
The impact composite powder separator 9 is used for removing dust in sand, in particular dust accumulated in a sand pile and adsorbed on the sand, and the motor of the blower 10 can change frequency for adjusting wind speed and wind power.
The triaxial horizontal elliptic screen 11 is used for screening and classifying sand and stone, and is provided with three layers of screens, wherein the bottom layer is 3mm multiplied by 3mm meshes, the middle layer is 5mm multiplied by 5mm meshes, and the upper layer is 10mm multiplied by 10mm meshes; dividing the sand into four materials of less than or equal to 3mm,3 mm-5 mm,5 mm-10 mm and more than 10 mm.
The electric control second three-way valve 12 is arranged at the upper outlet of the bottom screen of the triaxial horizontal elliptic screen 11, and the amount of coarse sand with the diameter of 3 mm-5 mm entering the finished sand bin and the high-speed vertical shaft is regulated in proportion, so that the proportion of the coarse sand in the finished sand is regulated, and the purposes of controlling the grading and fineness modulus of the finished sand are achieved.
The electric control first three-way valve 13 is arranged at the upper outlet of the middle layer screen mesh of the triaxial horizontal elliptic screen 11, and the amount of the melon beige stone which is 5-10 mm and enters the overflow type vertical shaft crusher 2 and the high-speed type vertical shaft crusher 3 is proportionally regulated so as to balance the load saturation of the two crushers and regulate the particle shape of the finished sand.
The wet mixer 14 is used for mixing wet finished sand, so that the finished sand is uniformly and stably mixed, is not easy to separate in the transportation and loading processes, and the water content can be controlled to be 3-5%.
The inertial dust separator 16 is used for recovering coarse particles in the stone powder, wherein the coarse particles are more than 75 mu m, so that the yield of the finished sand is improved, and the grading of the finished sand is ensured to be reasonable.
The dust remover 17 is used for removing dust generated in the sand making process, so that the building station meets the national environmental protection requirements.
The process flow of the environment-friendly fine sand making building station comprises the following steps: crushed stone less than or equal to 60mm enters a feeding aggregate bin 1, then enters a overflow vertical shaft crusher 2 for crushing and shaping, then falls on a plate conveyor 6, is conveyed to a bucket elevator 7 through the plate conveyor 6, is lifted to a vibration dispersing machine 8 through the bucket elevator 7, is dispersed and conveyed to an impact type composite powder selecting machine 9 for powder selecting and dust removing through the vibration dispersing machine 8, and the sand stone after powder selecting and dust removing enters a triaxial horizontal elliptic screen 11 for screening.
The sand is separated into four materials after sieving, and the first fine sand less than or equal to 3mm enters a wet mixer 14. The second type of coarse sand with the diameter of 3mm to 5mm enters an electric control second three-way valve 12, the electric control second three-way valve 12 is provided with two outlets, one outlet can enter a wet mixer 14, the mixture with fine sand with the diameter of less than or equal to 3mm is conveyed into a finished sand bin 19 through a belt, the other outlet can enter a high-speed vertical shaft to break 3 for secondary breaking, the amount entering the wet mixer is regulated, and the grading and fineness modulus of the finished sand can be regulated. The third type of 5-10 mm melon beige stone enters an electric control first three-way valve 13, the electric control first three-way valve 13 also has two outlets, one can enter a high-speed vertical shaft crusher 3 for crushing again, and the other can enter a waterfall type vertical shaft crusher 2 for crushing and shaping, when the particle shape is good, more materials can enter the waterfall type vertical shaft crusher 2, and if the sand yield is higher, more materials can enter the high-speed vertical shaft crusher 3. And thirdly, returning crushed stone with the diameter of more than 10mm to the overflow type vertical shaft crusher 2 for crushing and shaping. In this way, the sand and gravel crushed by the high-speed vertical shaft crusher 3 and the sand and gravel crushed by the overflow vertical shaft crusher 2 enter the plate conveyor 6 and are conveyed to the triaxial horizontal elliptic screen 11 for screening by the bucket elevator 7, so that a closed loop system is formed.
Dust flow direction: the primary powder concentrator 5, the impact composite powder concentrator 9, the upper part and the bottom of the triaxial horizontal elliptic screen 11 are provided with dust extraction ports, after dust extracted from the dust extraction ports is collected, coarse particles in the dust are recycled by an inertial dust separator 16 and enter a wet mixer to be mixed with finished sand, the rest of the dust enters a dust remover, the dust is separated by a cloth bag and enters a powder tank 20, and clean air is extracted by an exhaust fan and discharged into the air.
The method explains the conditions of vertical shaft breaking and shaping: the main function of the vertical shaft impact crusher is to obtain fine sand with excellent grain shape, such as asphalt layer on the uppermost layer of expressway, and sand with quite strict grain shape and granularity is needed. The dam casting of the hydropower station needs high-specification and high-quality sand materials so as to ensure the safety and reliability of the dam. In general, the sand for a general building does not have to be made of sand of such high specification, because the abrasion of the wear-resistant member of the vertical shaft impact crusher is very serious, that is, the production cost thereof is relatively expensive. In the following we explain the crushing principle of such a crusher.
The impact crushing principle is used by the vertical shaft impact crusher. In actual operation, the vertical shaft impact break runs at a very high speed, and the rotor speed reaches 1700 revolutions per minute, which is basically close to one time of the rotor speed of the ultra-high fine crusher. With such high rotational speeds, the aim is to accelerate the material to extremely high speeds, giving the material considerable kinetic energy for achieving efficient impact crushing.
Basic principle expression of overflow vertical shaft breaker 2: the raw materials are continuously and uniformly added into the feeding cavity from the top of the machine, and are divided into a central material and waterfall material flows which fall in an umbrella shape around after passing through the material dividing disc and the overflow regulating valve, and the flow ratio of the central material and the waterfall material flows is regulated through the blanking valve. The raw materials entering the rotary table from the central material opening are rapidly accelerated in the rotary table rotating at high speed and are thrown out of three uniformly distributed flow passages at the linear speed of 60-75m/s to impact on the waterfall material flow.
In the process of impacting, the materials are cracked and crushed along the natural weak surface to generate cleavage and crushing, then the materials are punched on the vortex layer of the crushing cavity together, rising vortex and rotational flow are formed through rebound impact, the materials are impacted with the projectile flow again to form repeated impact for a plurality of times, and the materials are ground until kinetic energy is lost and fall from a discharge hole, so that the basic principle of stone clash stone adopted by the overflow vertical shaft crusher 2 can be known, and the stone has certain surface pits to enable the edges and corners of cracking particles generated by the stone clash stone impact to be round. Thus forming the shaping purpose, namely, the sand shape is better, and conversely, the sand discharging efficiency is low.
Basic principle expression of high-speed vertical shaft breaker 3: the raw materials are continuously and uniformly added into a feeding cavity from the top of the machine, all the materials directly enter the rotary table from a central material port after passing through a material distributing disc and an overflow regulating valve, are rapidly accelerated in the rotary table rotating at high speed and are thrown out of three uniformly distributed flow channels at the linear speed of 60-75m/s, and are impacted on a counterattack plate. The high-speed vertical shaft crusher 3 adopts the working principle of stone iron. Since the surface of iron has no pits and the hardness of iron is high, the corners of the impact cracking particles are sharp, so that the shaping effect is not ideal, but the sand yield of the impact cracking particles is high due to high-speed impact. In practical application, the overflow vertical shaft crusher 2 and the high-speed vertical shaft crusher 3 are organically combined to produce an ideal production scheme with balanced particle shape and sand production efficiency.
Claims (1)
1. An environment-friendly fine sand making building station system comprises a building station steel member, a feeding aggregate bin (1), a waterfall type vertical shaft crusher (2), a high-speed vertical shaft crusher (3), a primary powder concentrator (5), a plate conveyor (6), a bucket elevator (7), a vibration dispersing machine (8), an impact composite powder concentrator (9), a triaxial horizontal elliptical screen (11), a second three-way valve (12), a first three-way valve (13), a wet mixer (14), an inertial dust separator (16), a dust remover (17) and a powder tank (20), and is characterized in that the building station steel member comprises a crushing building and a powder tank building;
the crushing building is divided into two layers, wherein the overflow type vertical shaft crusher (2), the high-speed vertical shaft crusher (3), the primary powder selecting machine (5), the plate conveyor (6) and the bucket elevator (7) are arranged on the first layer; the impact type composite powder concentrator (9), a triaxial horizontal elliptic screen (11), a second three-way valve (12) and a first three-way valve (13) are arranged on the second layer;
the powder tank building is divided into three layers, wherein the first layer is provided with a dust loading and transporting truck, the second layer is provided with the powder tank (20), and the third layer is provided with the dust remover (17);
the material outlet of the material feeding collecting bin (1) is connected with the material inlet pipeline of the overflow type vertical shaft crusher (2), the material outlet of the overflow type vertical shaft crusher (2) is connected with the material inlet pipeline of the primary powder selecting machine (5), the plate conveyor (6) is arranged below the material outlet of the primary powder selecting machine (5), the plate conveyor (6) is connected with the material inlet at the lower end of the bucket elevator (7), the material outlet of the vibration dispersing machine (8) receives the material discharged by the material outlet at the upper end of the bucket elevator (7), the material outlet of the vibration dispersing machine (8) is connected with the impact type composite powder selecting machine (9), the impact type composite powder selecting machine (9) is connected with the triaxial horizontal elliptic screen (11), and the material outlet of the triaxial horizontal elliptic screen (11) is connected with the wet mixer (14); the triaxial horizontal elliptic screen (11) comprises an upper screen, a middle screen and a bottom screen, wherein an upper screen outlet is arranged below the upper screen, a middle screen outlet is arranged below the middle screen, a bottom screen outlet is arranged below the bottom screen, the upper screen outlet is connected with a feed inlet of the feed collecting bin (1), the middle screen outlet is connected with a first three-way valve (13) and then is divided into two paths, one path is connected with the feed inlet of the feed collecting bin (1), and the other path is connected with the high-speed vertical shaft breaker (3); the outlet of the middle layer screen is connected with the second three-way valve (12) and then is divided into two paths, one path is connected with the high-speed vertical shaft breaker (3), and the other path is connected with the wet mixer (14); the plate conveyor (6) is arranged below the high-speed vertical shaft crusher (3); the feeding port of the inertial dust separator (16) is connected with the composite powder separator (9) and the triaxial horizontal elliptic screen (11), and the discharging port of the inertial dust separator (16) is connected with the feeding port of the dust remover (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112998.9A CN109127086B (en) | 2018-09-25 | 2018-09-25 | Environment-friendly exquisite sand making building station system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112998.9A CN109127086B (en) | 2018-09-25 | 2018-09-25 | Environment-friendly exquisite sand making building station system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109127086A CN109127086A (en) | 2019-01-04 |
| CN109127086B true CN109127086B (en) | 2023-12-22 |
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| CN112156878A (en) * | 2020-09-30 | 2021-01-01 | 成都大宏立机器股份有限公司 | Environment-friendly sand making building for increasing yield and sand making process |
| CN113351338A (en) * | 2021-06-22 | 2021-09-07 | 韶关市强龙重工有限公司 | Intelligent environment-friendly dry-method building-type sand making system and processing technology |
| CN113457818A (en) * | 2021-08-05 | 2021-10-01 | 重庆齿轮箱有限责任公司 | Waste ceramic tile sand making and powder making integrated machine and sand making and powder making method |
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