Building standing type gravel processing system with multiple sand making functions

Abstract

The utility model discloses a building standing type gravel processing system with multiple sand making functions, and relates to the technical field of artificial gravel aggregate processing. Comprising a feeding and coarse crushing assembly, a material conveying device, a first screening device, a medium and fine crushing assembly, a first lifting device, a second screening device, a first sand making assembly, a second sand making assembly, a second lifting device, a sand washing device, a building station type steel structure and a finished product conveying assembly. The second screening device adopts vibrating screen equipment with upper, middle and lower layers of screens; and the finished product conveying assembly comprises a first conveying belt, a second conveying belt, a third conveying belt, a fourth conveying belt, a fifth conveying belt and a sixth conveying belt. According to the utility model, the gravel aggregate with different particle sizes can be produced only by correspondingly adjusting the processing direction of the aggregate in the process link according to different requirements on the gravel aggregate in different time periods of a project, and the flexibility of the product is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial sand and gravel aggregate processing, in particular to a building-station type sand and gravel processing system with multiple sand making functions. Background Technique

[0002] An artificial sand and gravel aggregate processing system is an operation that crushes, screens, washes, stores and transports large sand and gravel aggregates, and is widely used in the construction of basic projects such as pumped storage power stations, key railway projects, key highway projects, and water diversion projects. It has the characteristics of short service time and relatively fixed production scale.

[0003] Existing sand and gravel processing systems generally deploy relevant equipment such as crushing, screening, washing, storing and transporting in a flat-laying form, resulting in a large overall floor area of the system, increased difficulty in construction environment management, exacerbating the problem of land shortage at the construction site of the project. And during the project construction process, the proportions and types of sand and gravel aggregates required in different periods are different, and the demand for machine-made sand is variable. It is necessary to flexibly adjust the products produced by the sand and gravel system according to the on-site needs. However, the processing links of existing sand and gravel processing systems are relatively closed, resulting in some equipment and their connected conveying equipment being idle in different periods, reducing the utilization rate and efficiency of production equipment. Therefore, a building-station type sand and gravel processing system with multiple sand making functions is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a building-station type sand and gravel processing system with multiple sand making functions to solve the problem that during the project construction process, the proportions and types of sand and gravel aggregates required in different periods are different, the demand for machine-made sand is variable, and it is necessary to flexibly adjust the products produced by the sand and gravel system according to the on-site needs. However, the processing links of existing sand and gravel processing systems are relatively closed, resulting in some equipment and their connected conveying equipment being idle in different periods, reducing the utilization rate and efficiency of production equipment. To achieve the above purpose, the utility model provides the following technical solution: A building-station type sand and gravel processing system with multiple sand making functions, including a feeding and coarse crushing component, a material conveying device, a first screening device, a medium and fine crushing component, a first lifting device, a second screening device, a first sand making component, a second sand making component, a second lifting device, a water-washed sand device, a building-station type steel structure and a finished product conveying component. The first screening device adopts a vibrating screen device with upper and lower layers of screen meshes, and the second screening device adopts a vibrating screen device with upper, middle and lower layers of screen meshes. The finished product conveying component includes a first conveyor belt, a second conveyor belt, a third conveyor belt, a fourth conveyor belt, a fifth conveyor belt and a sixth conveyor belt. The first screening device, the medium and fine crushing component, the first lifting device, the second screening device, the first sand making component, the second sand making component, the second lifting device and the water-washed sand device are all installed on the building-station type steel structure;

[0005] The discharge end of the feeding and coarse crushing assembly is connected to the feeding end of the first screening device through a material conveying device. The oversize material on the upper screen of the first screening device is connected to the feeding end of the medium and fine crushing assembly. The oversize material on the lower screen of the first screening device is connected to the feeding ends of the medium and fine crushing assembly, the first conveyor belt, and the second conveyor belt. The undersize material on the lower screen of the first screening device is connected to the feeding end of the second screening device and the second conveyor belt. The discharge end of the medium and fine crushing assembly is connected to the feeding end of the first lifting device. The discharge end of the first lifting device is connected to the feeding end of the first screening device. The oversize material on the upper screen of the second screening device is connected to the feeding end of the first sand making assembly and the sixth conveyor belt. The oversize material on the middle screen of the second screening device is connected to the feeding ends of the first sand making assembly, the second sand making assembly, and the fifth conveyor belt. The oversize material on the lower screen of the second screening device is connected to the fourth conveyor belt, the fifth conveyor belt, the feeding ends of the first sand making assembly, and the second sand making assembly. The undersize material on the lower screen of the second screening device is connected to the feeding end of the sand washing device and the second conveyor belt. The discharge end of the sand washing device is connected to the third conveyor belt. The discharge ends of the first sand making assembly and the second sand making assembly are both connected to the feeding end of the second lifting device. The discharge end of the second lifting device is connected to the feeding end of the second screening device.

[0006] Optionally, the washing water of the sand washing device is recycled through a water treatment component connected. The water treatment component includes a collecting tank, a chemical dosing room, a filter press, a clear water tank, a high-level water tank, and an external makeup water line. The inlet end of the collecting tank is connected to the outlet end of the sand washing device. The outlet ends of the collecting tank and the chemical dosing room are connected to the inlet end of the filter press. The outlet end of the filter press is connected to the inlet end of the clear water tank. The outlet end of the clear water tank is connected to the inlet end of the high-level water tank. The inlet end of the high-level water tank is connected with an external makeup water line. The outlet end of the high-level water tank is connected to the inlet end of the sand washing device.

[0007] Based on the above technical features, the sewage after the sand washing device cleans the machine-made sand is treated by the water treatment component, and the washing water is reused to save water resources.

[0008] Optionally, the top feeding ends of the first screening device, the medium and fine crushing assembly, the first sand making assembly, the second sand making assembly, and the sand washing device are respectively provided with a first buffer bin, a second buffer bin, a third buffer bin, a fourth buffer bin, and a fifth buffer bin.

[0009] Based on the above technical features, the amount of sand and gravel coming into the first screening device, the medium and fine crushing assembly, the first sand making assembly, the second sand making assembly, and the sand washing device is large and difficult to control. Adding buffer devices can balance the discharge and facilitate the collection and centralized feeding of materials.

[0010] Optionally, a dust collection assembly is further provided on the building-type steel structure. The dust collection assembly includes a dust collection main body, a dust storage bin, and a dust powder conveying device. The dust collection main body is collected by aggregating dust collection pipelines arranged at each equipment discharge point. The discharge end of the dust collection main body is connected to the feed end of the dust storage bin, and the discharge end of the dust storage bin is connected to the feed end of the dust powder conveying device.

[0011] Based on the above technical features, the dust separately collected by each equipment in the sand and gravel processing system is centrally processed.

[0012] Optionally, a material pile group is provided at the discharge end of the finished product material conveying assembly. The material pile group includes a first finished product material pile, a cushion material pile, a second finished product material pile, a third finished product material pile, a fourth finished product material pile, and a fifth finished product material pile. The first finished product material pile, the cushion material pile, the second finished product material pile, the third finished product material pile, the fourth finished product material pile, and the fifth finished product material pile respectively correspond to the output ends of the first conveyor belt, the second conveyor belt, the third conveyor belt, the fourth conveyor belt, the fifth conveyor belt, and the sixth conveyor belt one by one.

[0013] Based on the above technical features, different sand and gravel products output by the first conveyor belt, the second conveyor belt, the third conveyor belt, the fourth conveyor belt, the fifth conveyor belt, and the sixth conveyor belt are collected.

[0014] Optionally, the first sand making assembly includes a third buffer bin and a first sand making device. The third buffer bin is the feed end of the first sand making assembly, and the discharge end of the third buffer bin is connected to the feed end of the first sand making device. The second sand making assembly includes a fourth buffer bin and a second sand making device. The fourth buffer bin is the feed end of the second sand making assembly, and the discharge end of the fourth buffer bin is connected to the feed end of the second sand making device.

[0015] Optionally, the medium and fine crushing assembly includes a second buffer bin, a feeding device, and a medium and fine crushing device. The second buffer bin is the feed end of the medium and fine crushing assembly, the discharge end of the second buffer bin is connected to the feed end of the feeding device, and the discharge end of the feeding device is connected to the feed end of the medium and fine crushing device.

[0016] Optionally, the feeding and coarse crushing assembly includes a coarse crushing device and a material pit. The material pit is located underground, the discharge end of the material pit is connected to the feed end of the coarse crushing device, and the discharge end of the coarse crushing device is connected to the feed end of the material conveying device.

[0017] Based on the above technical features, it is convenient for the transport vehicle unloading large sand and gravel aggregates to enter the material pit, and compared with the transport vehicle directly unloading on flat ground, it is convenient to centrally supply materials to the coarse crushing device and can reduce dust at the same time.

[0018] Optionally, the building - type steel structure is based on the ground floor F0 and is successively divided into the first floor F1, the second floor F2, the third floor F3, and the fourth floor F4 from bottom to top. The first sand - making assembly, the second sand - making assembly, and the sand - washing device are arranged on the ground floor F0. The medium - and - fine crushing assembly, the third buffer bin, and the fifth buffer bin are arranged on the first floor F1. The second screening device, the second buffer bin, and the ash - powder conveying device are arranged on the second floor F2. The first screening device and the ash - material storage bin are arranged on the third floor F3. The dust - collecting main body is arranged on the fourth floor F4. The first lifting device rises from the ground floor F0 to the top of the fourth floor F 4， The second lifting device rises from the ground floor F0 to the top of the third floor F3.

[0019] Based on the above - mentioned technical features, by reasonably distributing each device on the building - type steel structure, it is convenient to utilize the characteristic of gravity - fed material during system processing, minimize the floor area as much as possible, and improve the space utilization rate.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] In the present utility model, through the building - type layout, key technological links such as feeding, crushing, screening, sand - making, and sand - washing are integrated into one, achieving a high degree of integration. The installation, debugging, and later maintenance of each equipment module are more convenient due to their designed installation positions, effectively improving the production efficiency and the reliability of the equipment.

[0022] In the present utility model, according to the different demands for sand and gravel aggregates at different time periods of the project, by simply adjusting the processing destination of the aggregates in the technological links accordingly, sand and gravel aggregates with different particle sizes can be produced, and the flexibility of the product is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three - dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is a partial three - dimensional structural sectional view of the gas storage frame of the present utility model;

[0025] Figure 3 is a partial three - dimensional structural schematic diagram of the gas storage frame of the present utility model.

[0026] In the figure:

[0027] 1. Feeding and coarse - crushing assembly; 101. Coarse - crushing equipment; 102. Material pit;

[0028] 2. Material conveying device;

[0029] 3. First screening device; 301. First buffer bin;

[0030] 4. Medium - and - fine crushing assembly; 401. Second buffer bin; 402. Feeding equipment; 403. Medium - and - fine crushing equipment;

[0031] 5. First lifting device;

[0032] 6. Second screening device;

[0033] 7. First sand making component; 701. Third buffer bin; 702. First sand making equipment;

[0034] 8. Second sand making component; 801. Fourth buffer bin; 802. Second sand making equipment;

[0035] 9. Second lifting device;

[0036] 10. Washed sand device; 1001. Fifth buffer bin;

[0037] 11. Dust collection component; 1101. Dust collection main body; 1102. Ash storage bin; 1103. Ash powder conveying device;

[0038] 12. Building station type steel structure

[0039] 13. Water treatment component; 1301. Collection pond; 1302. Chemical dosing room; 1303. Filter press; 1304. Clear water tank; 1305. High-level water tank; 1306. External supplementary waterway;

[0040] 14. Finished product material conveying component; 1401. First conveyor belt; 1402. Second conveyor belt; 1403. Third conveyor belt; 1404. Fourth conveyor belt; 1405. Fifth conveyor belt; 1406. Sixth conveyor belt;

[0041] 15. Stockpile group; 1501. First finished product stockpile; 1502. Bedding material stockpile; 1503. Second finished product stockpile; 1504. Third finished product stockpile; 1505. Fourth finished product stockpile; 1506. Fifth finished product stockpile. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0043] Please refer to Figures 1 to 3, the present utility model provides a technical solution: a building-station type sand and gravel processing system with multiple sand making functions, including a feeding and coarse crushing component 1, a material conveying device 2, a first screening device 3, a medium and fine crushing component 4, a first lifting device 5, a second screening device 6, a first sand making component 7, a second sand making component 8, a second lifting device 9, a water-washed sand device 10, a building-station type steel structure 12 and a finished product conveying component 14. The first screening device 3 adopts a vibrating screen device with upper and lower two-layer screens, wherein the aperture of the upper-layer screen is 80 mm, and the aperture of the lower-layer screen is 40 mm; the second screening device 6 adopts a vibrating screen device with upper, middle and lower three-layer screens, wherein the aperture of the upper-layer screen is 20 mm, the aperture of the middle-layer screen is 15 mm, and the aperture of the lower-layer screen is 5 mm. The finished product conveying component 14 includes a first conveyor belt 1401, a second conveyor belt 1402, a third conveyor belt 1403, a fourth conveyor belt 1404, a fifth conveyor belt 1405 and a sixth conveyor belt 1406. The first screening device 3, the medium and fine crushing component 4, the first lifting device 5, the second screening device 6, the first sand making component 7, the second sand making component 8, the second lifting device 9 and the water-washed sand device 10 are all installed on the building-station type steel structure 12.

[0044] The first lifting device 5 and the second lifting device 9 adopt bucket elevators, and the material conveying device 2 and the finished product conveying component 14 adopt belt conveyors.

[0045] The discharge end of the feeding and coarse crushing component 1 is connected to the feeding end of the first screening device 3 through the material conveying device 2. The oversize material on the upper-layer screen of the first screening device 3 is connected to the feeding end of the medium and fine crushing component 4. The oversize material on the lower-layer screen of the first screening device 3 is connected to the feeding end of the medium and fine crushing component 4, the first conveyor belt 1401 and the second conveyor belt 1402. The undersize material on the lower-layer screen of the first screening device 3 is connected to the feeding end of the second screening device and the second conveyor belt 1402. The discharge end of the medium and fine crushing component 4 is connected to the feeding end of the first lifting device 5. The discharge end of the first lifting device 5 is connected to the feeding end of the first screening device 3. The oversize material on the upper-layer screen of the second screening device 6 is connected to the feeding end of the first sand making component 7 and the sixth conveyor belt 1406. The oversize material on the middle-layer screen of the second screening device 6 is connected to the feeding ends of the first sand making component 7, the second sand making component 8 and the fifth conveyor belt 1405. The oversize material on the lower-layer screen of the second screening device 6 is connected to the fourth conveyor belt 1404, the fifth conveyor belt 1405, the feeding ends of the first sand making component 7 and the second sand making component 8. The undersize material on the lower-layer screen of the second screening device 6 is connected to the feeding end of the water-washed sand device 10 and the second conveyor belt 1402. The discharge end of the water-washed sand device 10 is connected to the third conveyor belt 1403. The discharge ends of the first sand making component 7 and the second sand making component 8 are both connected to the feeding end of the second lifting device 9. The discharge end of the second lifting device 9 is connected to the feeding end of the second screening device 6.

[0046] The cleaning water of the water-washing sand device 10 is circulated through the water treatment component 13, which includes a water collecting tank 1301, a dosing room 1302, a filter press 1303, a clean water tank 1304, a high-level water tank 1305 and an external supplementary water circuit 1306. The liquid inlet end of the water collecting tank 1301 is connected to the liquid outlet end of the water-washing sand device 10, the liquid outlet ends of the water collecting tank 1301 and the dosing room 1302 are connected to the liquid inlet end of the filter press 1303, the liquid outlet end of the filter press 1303 is connected to the liquid inlet end of the clean water tank 1304, the liquid outlet end of the clean water tank 1304 is connected to the liquid inlet end of the high-level water tank 1305, the liquid inlet end of the high-level water tank 1305 is connected to the external supplementary water circuit 1306, and the liquid outlet end of the high-level water tank 1305 is connected to the liquid inlet end of the water-washing sand device 10. The wastewater generated after the machine-made sand is washed by the water-washing device 10 is treated by the water treatment component 13, and the washing water is reused to save water resources.

[0047] Among them, the water sand washing device 10 can adopt a wheel-type sand washing machine. The cleaning water for sand washing is sprayed from the top of the wheel-type sand washing machine, and the slurry mixed with sand, gravel and water enters the sand washing tank for hydraulic classification. The coarse particles settle down and the fine particles are discharged from the overflow. The bucket wheel loosens the bottom material on the one hand to stir out the mixed fine mud, and on the other hand, scoops out the sand to complete the entire sand washing process.

[0048] The top feeding ends of the first screening device 3, the medium and fine crushing assembly 4, the first sand making assembly 7, the second sand making assembly 8 and the water-washing sand device 10 are respectively provided with the first buffer bin 301, the second buffer bin 401, the third buffer bin 701, the fourth buffer bin 801 and the fifth buffer bin 1001. The sand and gravel input amount of the first screening device 3, the medium and fine crushing assembly 4, the first sand making assembly 7, the second sand making assembly 8 and the water-washing sand device 10 is large and difficult to control. Adding a buffer device can balance the discharge and facilitate the collection and concentration of the input material.

[0049] A dust collecting assembly 11 is also provided on the building-type steel structure 12. The dust collecting assembly 11 includes a dust collecting body 1101, an ash storage bin 1102 and an ash powder conveying device 1103. The dust collecting body 1101 collects dust through dust collecting pipes provided at the discharge points of each device. The discharge end of the dust collecting body 1101 is connected to the feed end of the ash storage bin 1102, and the discharge end of the ash storage bin 1102 is connected to the feed end of the ash powder conveying device 1103, so that the dust collected individually by each device in the sand and gravel processing system is centrally processed.

[0050] The discharging end of the finished material conveying component 14 is provided with a material pile group 15. The material pile group 15 includes a first finished material pile 1501, a cushion material pile 1502, a second finished material pile 1503, a third finished material pile 1504, a fourth finished material pile 1505 and a fifth finished material pile 1506. The first finished material pile 1501, the cushion material pile 1502, the second finished material pile 1503, the third finished material pile 1504, the fourth finished material pile 1505 and the fifth finished material pile 1506 respectively correspond to the output ends of the first conveyor belt 1401, the second conveyor belt 1402, the third conveyor belt 1403, the fourth conveyor belt 1404, the fifth conveyor belt 1405 and the sixth conveyor belt 1406. Different sand and gravel products output by the first conveyor belt 1401, the second conveyor belt 1402, the third conveyor belt 1403, the fourth conveyor belt 1404, the fifth conveyor belt 1405 and the sixth conveyor belt 1406 are collected. That is, the particle size of the material in the first finished material pile 1501 is 40 - 80 mm, the particle size of the material in the cushion material pile 1502 is less than 80 mm, the material in the second finished material pile 1503 is machine-made sand and the particle size is less than 5 mm, the particle size of the material in the third finished material pile 1504 is 5 - 15 mm, the particle size of the material in the fourth finished material pile 1505 is 5 - 20 mm, and the particle size of the material in the fifth finished material pile 1506 is 20 - 40 mm.

[0051] The first sand making component 7 includes a third buffer bin 701 and a first sand making device 702. The third buffer bin 701 is the feeding end of the first sand making component 7, and the discharging end of the third buffer bin 701 is connected to the feeding end of the first sand making device 702. The second sand making component 8 includes a fourth buffer bin 801 and a second sand making device 802. The fourth buffer bin 801 is the feeding end of the second sand making component 8, and the discharging end of the fourth buffer bin 801 is connected to the feeding end of the second sand making device 802. Among them, the first sand making device 702 uses a vertical shaft impact crusher, and the second sand making device 802 uses a pair of roll crushers. Both types of sand making devices can produce qualified machine-made sand.

[0052] The principle of the vertical shaft impact crusher is mainly that the runner rotates at high speed to throw the material out along the flow channel to impact the surrounding anvil (stone hitting iron) or the material lining in the crushing chamber (stone hitting stone) to obtain crushing. At the same time, friction crushing occurs between the materials. The feeding particle size is generally below 40mm, but there are problems such as it being difficult to crush fine materials with a size of 5 - 20mm. The principle of the roll crusher is mainly that the material freely falls between two rollers of the same size that rotate towards each other. As the rollers rotate, the material is extruded through the roll gap. In this process, the main crushing method of the material is mutual extrusion crushing, which belongs to the interlayer compression crushing of silt materials. Based on the above working principle, the roll crusher can be used for crushing and sand making of highly abrasive and hard materials, and can efficiently crush fine materials with a particle size of 5 - 20mm that are difficult to crush by sand making equipment such as vertical shaft impact crushers. The roll crusher has the advantages of low energy consumption, low noise, low powder production rate, large throughput, and a sand formation rate (-5mm) reaching 50% - 70%. The smaller the feeding particle size, the higher the production capacity, etc.

[0053] Based on the above characteristics of the vertical shaft impact crusher and the roll crusher, in order to improve the sand making efficiency and reduce the production cost at the same time, all sand and gravel aggregates with a particle size less than 40mm can enter the first sand making equipment 702 for sand making. When the demand for sand and gravel aggregates with a particle size less than 20mm in the engineering project is small, they can be separately fed into the second sand making equipment 802 for sand making.

[0054] The medium and fine crushing assembly 4 includes a second buffer bin 401, a feeding device 402, and a medium and fine crushing device 403. The second buffer bin 401 is the feeding end of the medium and fine crushing assembly 4. The discharging end of the second buffer bin 401 is connected to the feeding end of the feeding device 402, and the discharging end of the feeding device 402 is connected to the feeding end of the medium and fine crushing device 403. Among them, the medium and fine crushing device 403 uses a cone crusher.

[0055] The feeding and coarse crushing assembly 1 includes a coarse crushing device 101 and a bunker 102. The bunker 102 is located underground. The discharging end of the bunker 102 is connected to the feeding end of the coarse crushing device 101, and the discharging end of the coarse crushing device 101 is connected to the feeding end of the material conveying device 2. The transport vehicle for large sand and gravel aggregates can unload goods conveniently into the bunker 102. And compared with the transport vehicle directly unloading on the flat ground, it is convenient to supply materials to the coarse crushing device 101 centrally and can reduce dust emission at the same time. Among them, the coarse crushing device 101 uses an integrated machine of a bar feeder and a jaw crusher.

[0056] The building - type steel structure 12 is based on the ground floor F0 and is successively divided into the first floor F1, the second floor F2, the third floor F3, and the fourth floor F4 from bottom to top. The first sand - making component 7, the second sand - making component 8, and the washed - sand device 10 are arranged on the ground floor F0. The medium - and - fine crushing component 4, the third buffer bin 701, and the fifth buffer bin 1001 are arranged on the first floor F1. The second screening device 6, the second buffer bin 401, and the ash - powder conveying device 1103 are arranged on the second floor F2. The first screening device 3 and the ash - material storage bin 1102 are arranged on the third floor F3. The dust - collection main body 1101 is arranged on the fourth floor F4. The first lifting device 5 rises from the ground floor F0 to the top of the fourth floor F 4， The second lifting device 9 rises from the ground floor F0 to the top of the third floor F3. Each device on the building - type steel structure 12 is installed on the building - type steel structure 12 in a detachable manner, which can achieve the performance in multiple aspects such as the quick disassembly and assembly of each device, the improvement of installation efficiency, flexibility, maintainability, transportation and storage costs, and safety. And through the reasonable distribution of each device on the building - type steel structure 12, it is convenient to utilize the characteristic of gravity - fed material in system processing, minimize the floor area as much as possible, and improve the space utilization rate.

[0057] Among them, a conveyor belt or a material chute and other structures can be selectively used to connect the materials between each device.

[0058] Working principle:

[0059] The large - sized sand and gravel feedstock is first coarsely crushed by the feeding and coarse - crushing component 1 and then sent to the first screening device 3 through the material conveying device 2. The over - size materials on the upper - layer screen of the first screening device 3 are sent to the medium - and - fine crushing component 4, and the over - size materials on the lower - layer screen of the first screening device 3 are respectively sent to the medium - and - fine crushing component 4 and the second conveyor belt 1402. The materials finely crushed by the medium - and - fine crushing component 4 are sent to the first screening device 3 through the first lifting device 5. The undersize materials on the lower - layer screen of the first screening device 3 are respectively sent to the second screening device 6 and the second conveyor belt 1402, and the material quantity can be adjusted according to actual needs.

[0060] The over - size materials on the upper - layer screen of the second screening device 6 can be respectively sent to the first sand - making component 7 and the sixth conveyor belt 1406. The over - size materials on the middle - layer screen of the second screening device 6 can be respectively sent to the first sand - making component 7, the second sand - making component 8, and the fifth conveyor belt 1405. The over - size materials on the lower - layer screen of the second screening device 6 can be respectively sent to the first sand - making component 7, the second sand - making component 8, the fourth conveyor belt 1404, and the fifth conveyor belt 1405. The materials processed by the first sand - making component 7 and the second sand - making component 8 can both be returned to the second screening device 6 through the second lifting device 9. The undersize materials on the lower - layer screen of the second screening device 6 are sent to the washed - sand device 10, and the washed machine - made sand is sent to the third conveyor belt 1403. Among them, the flow rate of each part can be correspondingly controlled by adjusting the valve according to actual needs.

[0061] Through the building-station type sand and gravel processing system with multiple sand making functions, the actual requirements during the project construction process can be met, the products and gradations can be flexibly adjusted, and the requirements for aggregates for producing three-graded concrete, two-graded concrete, bedding materials, and aggregates for shotcrete can be satisfied.

[0062] The above shows and describes the basic principles, main features and advantages of the present utility model. Technical staff in this industry should understand that the present utility model is not restricted by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A floor-standing sand and gravel processing system with multiple sand making functions, characterized by: The invention comprises a feeding and coarse crushing component (1), a material conveying device (2), a first screening device (3), a medium and fine crushing component (4), a first lifting device (5), a second screening device (6), a first sand making component (7), a second sand making component (8), a second lifting device (9), a water-washing sand device (10), a building-type steel structure (12) and a finished material conveying component (14), wherein the first screening device (3) adopts a vibrating screen device with upper and lower two-layer screens, the second screening device (6) adopts a vibrating screen device with upper, middle and lower three-layer screens, and the The finished material conveying assembly (14) comprises a first conveyor belt (1401), a second conveyor belt (1402), a third conveyor belt (1403), a fourth conveyor belt (1404), a fifth conveyor belt (1405) and a sixth conveyor belt (1406); the first screening device (3), the medium and fine crushing assembly (4), the first lifting device (5), the second screening device (6), the first sand making assembly (7), the second sand making assembly (8), the second lifting device (9) and the water-washing sand device (10) are all installed on the floor-standing steel structure (12); The discharge end of the feeding and coarse crushing component (1) is connected to the feed end of the first screening device (3) through the material conveying device (2); the screened material of the upper screen of the first screening device (3) is connected to the feed end of the medium and fine crushing component (4); the screened material of the lower screen of the first screening device (3) is connected to the feed end of the medium and fine crushing component (4), the first conveyor belt (1401) and the second conveyor belt (1402); the screened material of the lower screen of the first screening device (3) is connected to the feed end of the second screening device and the second conveyor belt (1402); the discharge end of the medium and fine crushing component (4) is connected to the feed end of the first lifting device (5); the discharge end of the first lifting device (5) is connected to the feed end of the first screening device (3); the screened material of the upper screen of the second screening device (6) is connected to the feed end of the first sand making component (7) and the sixth conveyor belt (1406). The screened material of the middle screen of the second screening device (6) is connected to the feed end of the first sand making component (7), the feed end of the second sand making component (8) and the fifth conveyor belt (1405); the screened material of the lower screen of the second screening device (6) is connected to the fourth conveyor belt (1404), the fifth conveyor belt (1405), the feed end of the first sand making component (7) and the feed end of the second sand making component (8); the screened material of the lower screen of the second screening device (6) is connected to the feed end of the water-washing sand device (10) and the second conveyor belt (1402); the discharge end of the water-washing sand device (10) is connected to the third conveyor belt (1403); the discharge ends of the first sand making component (7) and the second sand making component (8) are both connected to the feed end of the second lifting device (9); and the discharge end of the second lifting device (9) is connected to the feed end of the second screening device (6).

2. The floor-standing sand and gravel processing system with multiple sand making functions according to claim 1 is characterized in that: The cleaning water of the water-washing sand device (10) is circulated through a water treatment component (13) connected thereto. The water treatment component (13) comprises a water collection tank (1301), a dosing room (1302), a filter press (1303), a clean water tank (1304), a high-level water tank (1305), and an external supplementary water circuit (1306). The liquid inlet end of the water collection tank (1301) is connected to the liquid outlet end of the water-washing sand device (10). The liquid outlet of the dosing room (1302) is connected to the liquid inlet of the filter press (1303), the liquid outlet of the filter press (1303) is connected to the liquid inlet of the clean water tank (1304), the liquid outlet of the clean water tank (1304) is connected to the liquid inlet of the high-level water tank (1305), the liquid inlet of the high-level water tank (1305) is connected to an external supplementary water circuit (1306), and the liquid outlet of the high-level water tank (1305) is connected to the liquid inlet of the water-washing sand device (10).

3. The floor-standing sand and gravel processing system with multiple sand making functions according to claim 1 is characterized in that: The top feed ends of the first screening device (3), the medium and fine crushing component (4), the first sand making component (7), the second sand making component (8) and the water-washing sand device (10) are respectively provided with a first buffer bin (301), a second buffer bin (401), a third buffer bin (701), a fourth buffer bin (801) and a fifth buffer bin (1001).

4. The floor-standing sand and gravel processing system with multiple sand making functions according to claim 1 is characterized in that: A dust collecting assembly (11) is also provided on the building-type steel structure (12), and the dust collecting assembly (11) comprises a dust collecting body (1101), an ash storage bin (1102) and an ash powder conveying device (1103). The dust collecting body (1101) collects dust through dust collecting pipes provided at the discharge points of each device, the discharge end of the dust collecting body (1101) is connected to the feed end of the ash storage bin (1102), and the discharge end of the ash storage bin (1102) is connected to the feed end of the ash powder conveying device (1103).

5. The floor-standing sand and gravel processing system with multiple sand making functions according to claim 1 is characterized in that: A material pile group (15) is provided at the discharge end of the finished material conveying component (14), and the material pile group (15) includes a first finished material pile (1501), a cushion material pile (1502), a second finished material pile (1503), a third finished material pile (1504), a fourth finished material pile (1505) and a fifth finished material pile (1506), and the first finished material pile (1501), the cushion material pile (1502), the second finished material pile (1503), the third finished material pile (1504), the fourth finished material pile (1505) and the fifth finished material pile (1506) correspond one by one to the output ends of the first conveyor belt (1401), the second conveyor belt (1402), the third conveyor belt (1403), the fourth conveyor belt (1404), the fifth conveyor belt (1405) and the sixth conveyor belt (1406), respectively.

6. The floor-standing sand and stone processing system with multiple sand making functions according to claim 1 is characterized in that: The first sand making component (7) comprises a third buffer bin (701) and a first sand making device (702), the third buffer bin (701) being the feed end of the first sand making component (7), and the discharge end of the third buffer bin (701) being connected to the feed end of the first sand making device (702), and the second sand making component (8) comprising a fourth buffer bin (801) and a second sand making device (802), the fourth buffer bin (801) being the feed end of the second sand making component (8), and the discharge end of the fourth buffer bin (801) being connected to the feed end of the second sand making device (802).

7. The floor-standing sand and stone processing system with multiple sand making functions according to claim 1 is characterized in that: The medium and fine crushing component (4) comprises a second buffer bin (401), a feeding device (402) and a medium and fine crushing device (403); the second buffer bin (401) is the feeding end of the medium and fine crushing component (4); the discharge end of the second buffer bin (401) is connected to the feeding end of the feeding device (402); and the discharge end of the feeding device (402) is connected to the feeding end of the medium and fine crushing device (403).

8. The floor-standing sand and stone processing system with multiple sand making functions according to claim 1 is characterized in that: The feeding and coarse crushing assembly (1) comprises a coarse crushing device (101) and a material pit (102), wherein the material pit (102) is located underground, the discharge end of the material pit (102) is connected to the feed end of the coarse crushing device (101), and the discharge end of the coarse crushing device (101) is connected to the feed end of the material conveying device (2).

9. The floor-standing sand and stone processing system with multiple sand making functions according to claim 1 is characterized in that: The building-type steel structure (12) is based on the ground layer F0 and is divided into a first layer F1, a second layer F2, a third layer F3 and a fourth layer F4 from bottom to top. The first sand making component (7), the second sand making component (8) and the water-washing sand device (10) are arranged on the ground layer F0, the medium and fine crushing component (4), the third buffer bin (701) and the fifth buffer bin (1001) are arranged on the first layer F1, the second screening device (6), the second buffer bin (401) and the ash powder conveying device (1103) are arranged on the second layer F2, the first screening device (3) and the ash storage bin (1102) are arranged on the third layer F3, the dust collecting body (1101) is arranged on the fourth layer F4, the first lifting device (5) is based on the ground layer F0 and is raised to the top of the fourth layer F4, and the second lifting device (9) is based on the ground layer F0 and is raised to the top of the third layer F3.

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