Sand-stone separation equipment for machine-made sand production

Abstract

The invention relates to the technical field of machine-made sand production, and discloses sand-gravel separation equipment for machine-made sand production, which comprises an equipment main body, a feeding structure is arranged at one end of the equipment main body, and a sand-gravel separation mechanism for separating sand and gravel through rotation is arranged in the equipment main body; a gravel conveying mechanism is arranged below the equipment body, one end of the gravel conveying mechanism is inserted into the feeding structure in a penetrating mode, the other end of the gravel conveying mechanism is located below the crushing device, and the gravel conveying mechanism can convey crushed stones into the feeding structure again. Separated large-size sandstone can be directly crushed, the crushed sandstone can be automatically conveyed into the feeding structure through the sandstone conveying mechanism so as to enter the sandstone separation mechanism again for separation work, the whole process is automatically treated without manual intervention, and harm to health of workers can be reduced by avoiding approaching of the workers; and manpower resources can be saved.

Description

Technical Field

[0001] The invention relates to the technical field of machine-made sand production, and in particular to sand and gravel separation equipment for machine-made sand production. Background Art

[0002] With the booming construction industry, the demand for sand and gravel has increased dramatically. However, natural sand, as a traditional source of construction sand, has become scarce due to long-term over-exploitation. In this context, machine-made sand has emerged as an important substitute for natural sand.

[0003] In the process of artificial sand production, sand and gravel separation equipment is crucial. It can accurately separate the crushed mixture into finished sand and gravel of different particle sizes to meet the diverse needs of the construction market.

[0004] If the particle size of the separated stones does not meet the current usage requirements, they can be sent to the crusher again for crushing to obtain stones with finer particle size. However, in the prior art, the larger sand and gravel after separation need to be crushed and separated again. For this step, workers are required to use loading equipment to collect the larger sand and gravel, and then transport the collected larger sand and gravel to the crushing equipment again for crushing and continue to transport them to the separation equipment for separation. Since workers need to come into close contact with heavy machinery and equipment, such as the feed and discharge port of the crusher, during operation, they may be injured due to accidental startup of the machine, splashing of materials, etc.

[0005] In addition, when workers collect large volumes of sand and gravel, they will be at the discharge port of the separation equipment. During the process, the workers will be exposed to high dust and high decibel environments for a long time, which will cause adverse effects on their health. Summary of the invention

[0006] In order to solve the above-mentioned problems, the present invention proposes a sand and gravel separation device for machine-made sand production.

[0007] In order to solve the above technical problems, the technical solution proposed by the present invention is: A sand and gravel separation device for machine-made sand production comprises a device body, a discharging conveyor belt is arranged at the bottom of the device body, a feeding structure is arranged at one end of the device body, a crushing device capable of crushing the separated stones again is arranged at the other end, a sand and gravel separation mechanism for separating sand and gravel by rotating is arranged in the device body, a separation driving mechanism for driving the sand and gravel separation mechanism to rotate is arranged on the device body, and a sand and gravel conveying mechanism is arranged below the device body, one end of which is inserted in the feeding structure and the other end is located below the crushing device and can convey the crushed stones to the feeding structure again; The equipment body includes an outer shell, a working bin is arranged in the outer shell, the sand and gravel separation mechanism includes a drum rotating in the working bin, a plurality of leakage holes for allowing gravel to pass through are arranged on the drum, a spiral conveying plate and a plurality of pushing plates which can push the sand and gravel to follow the rotation of the drum are arranged on the inner wall, an operating cavity with one end passing through the drum wall is arranged inside the drum wall, an adjusting cylinder which can adjust the size of sand and gravel discharged from the leakage hole is arranged in the operating cavity, a return spring is arranged between one end of the adjusting cylinder and the other end of the operating cavity, a plurality of force blocks are arranged at the other end, one end of the force block is perpendicular to the adjusting cylinder, and the other end is inclined toward the adjusting cylinder, a side sealing cylinder is sleeved at the end of the drum passed through by the operating cavity, a slot which is inserted into the drum is arranged in the side sealing cylinder, a force-applying block which slides alternately on the force block and the adjusting cylinder is arranged in the slot, side plates are arranged at both ends of the outer shell, and a driving member which can drive the side sealing cylinder to rotate is arranged on the other side plate.

[0008] As an improvement, the crushing device includes a support plate, on which a cone crusher capable of crushing stones is provided, a guide hopper is provided between the input port of the cone crusher and the output port of the equipment body, the output port of the cone crusher passes through the support plate and a conveyor belt is provided below the support plate, the feeding structure includes a feeding hopper connected to the input port of the equipment body, a carrying bucket is provided on the feeding hopper, the sand and gravel conveying mechanism includes a sand and gravel conveying device with the top passing through the carrying bucket, the bottom end of the sand and gravel conveying device is located below the conveyor belt, the sand and gravel conveying device includes a chain conveyor capable of conveying sand and gravel, the chain conveyor is provided with a plurality of limit plates capable of preventing sand and gravel from rolling down, a plurality of rotating rods are provided on the rotating shafts at both ends of the top of the sand and gravel conveying device, and material shifting blocks are provided at the ends of the rotating rods.

[0009] As an improvement, the separation drive mechanism includes an isolation cover located on the outer shell, a driving roller capable of driving the drum to rotate is provided inside the isolation cover, a second gear ring is provided on the drum, a third gear ring meshing with the second gear ring is provided on the driving roller, and a number of cleaning blocks that can be inserted into the leakage hole to push the stones in the leakage hole into the drum are evenly distributed on the outside, a driving device is provided on the isolation cover, a transmission shaft is provided on the driving device, and a driving gear meshing with the third gear ring is provided on the transmission shaft.

[0010] As an improvement, a material gathering slope is provided at the bottom inner side of the working bin, and the bottom inner wall of the working bin and the side end face of the material gathering slope together constitute the discharge port of the working bin. The discharge conveyor belt includes a second conveyor belt located below the discharge port, and a support leg is provided at the bottom of the outer shell, and a bracket fixed on the support leg is provided on the rotating shaft of the second conveyor belt.

[0011] As an improvement, both side plates are provided with through grooves for sand and gravel to pass through, one side plate is connected to the feed hopper, and the other side plate is connected to the guide hopper, and the feed hopper is provided with a feed auxiliary plate located in the through groove.

[0012] As an improvement, a partition is provided at the place where the carrying bucket is passed by the sand and gravel conveying device to prevent sand and gravel from passing through the carrying bucket and falling. A material guide slope is provided between the partition and the inner wall of the carrying bucket, and a driving mechanism fixed to the carrying bucket is provided at the end of the sand and gravel conveying device.

[0013] As an improvement, a support plate is fixed at the bottom of the carrying bucket, a material trough extending along the inclined direction of the chain conveyor belt is provided at the side end of the support plate, and a support rod is provided at the bottom.

[0014] As an improvement, an adjusting gear ring is provided on the adjusting cylinder, and the driving part includes a fixed seat fixed on the side panel, two sliding rods are provided at the bottom of the fixed seat, and a sliding connecting rod is slidably sleeved on the two sliding rods. An electric telescopic rod connected to the sliding connecting rod at the bottom end is provided on the fixed seat, and sliding seats are provided at both ends of the bottom of the sliding connecting rod. A driving motor is provided on the sliding seat at one end, and a worm gear meshing with the adjusting gear ring and driven by the driving motor is provided between the two sliding seats.

[0015] As an improvement, the adjusting cylinder is provided with several initial leakage holes and reduced leakage holes corresponding to the positions of the leakage holes. When the reset spring is compressed, the several reduced leakage holes correspond one-to-one to the several leakage holes, and when the reset spring is reset, the several initial leakage holes correspond one-to-one to the several leakage holes.

[0016] As an improvement, a water pipe bracket is provided on the driving device, a water outlet pipe is fixed on the water pipe bracket, a filter plate that can filter water is provided on the feed hopper, a water spray head is provided at the end of the water outlet pipe for spraying water toward the filter plate, and the water flowing out of the filter plate falls onto the chain conveyor belt.

[0017] Compared with the prior art, the present invention has the following advantages: 1. By setting up a sand and gravel separation mechanism to be directly connected with the crushing device, a larger volume of sand and gravel can be directly crushed after separation, and the crushed sand and gravel can be automatically transported to the feeding structure through the sand and gravel conveying mechanism to re-enter the sand and gravel separation mechanism for separation. The whole process is fully automated and does not require human intervention. It can not only reduce the harm to workers' health by avoiding workers from getting close, but also save human resources.

[0018] 2. By arranging a cleaning block that can be inserted into the leakage hole on the driving roller, while the driving roller drives the drum to rotate to separate the sand and gravel, it can also push the larger volume of sand and gravel stuck in the leakage hole into the drum, so that the number of effective separation leakage holes is always at the highest when the subsequent sand and gravel contact the drum, thereby ensuring the separation efficiency of sand and gravel.

[0019] 3. By arranging several push plates in the drum, when the drum rotates to separate sand and gravel, the push plates can push the sand and gravel at the bottom of the drum to rotate with the drum, and after the sand and gravel are pushed to a certain height, the sand and gravel will fall into the drum through the push plates, which greatly increases the degree of disorder of the sand and gravel inside the drum, thereby improving the separation efficiency of the sand and gravel, and several push plates will push the sand and gravel alternately, so that the sand and gravel content at the bottom of the drum is reduced, thereby greatly reducing the probability that high-density sand and gravel cannot pass through the leakage hole due to mutual accumulation, thereby improving the separation efficiency.

[0020] 4. By setting a device in the sand and gravel separation mechanism that can change the size of the sand and gravel output through the leakage hole by movement, when sand and gravel of different sizes need to be separated, it can be completed without replacing the sand and gravel separation equipment, thereby increasing the application scope of the sand and gravel separation of the sand and gravel separation equipment, and saving the number of sand and gravel separation equipment, thereby saving the cost of sand and gravel separation.

[0021] 5. By setting a water spray head that can moisten the sand and gravel and setting the chain conveyor belt under the feeding structure, the water sprayed by the water spray head can not only moisten the sand and gravel passing through the feeding hopper, but also moisten the sand and gravel that are crushed again and transported by the chain conveyor belt. It can not only reduce the dust content in the air during the sand and gravel separation process, but also improve the utilization rate of water resources by increasing the number of water resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the whole Figure 1 .

[0023] Figure 2 The present invention is a schematic diagram of the whole Figure 2 .

[0024] Figure 3 This is a schematic diagram of the present invention. Figure 1 .

[0025] Figure 4 This is a schematic diagram of the present invention. Figure 2 .

[0026] Figure 5 It is a partial schematic diagram of the present invention.

[0027] Figure 6 It is a partial split schematic diagram of the present invention.

[0028] Figure 7 The present invention Figure 1 Enlarged view of point A in the middle.

[0029] Figure 8 It is a schematic diagram of a sand and gravel conveying device of the present invention.

[0030] Fig. 9It is a schematic diagram of the disassembly of the sand and gravel conveying device of the present invention.

[0031] As shown in the figure: 1. Equipment body; 101. Outer shell; 102. Working chamber; 103. Side plate; 104. Leg; 105. Fixed plate; 106. Rotating rod 1; 107. Driven gear 1; 108. Rotating rod 2; 109. Driven gear 2; 110. Material gathering slope; 2. Feeding structure; 201. Loading bucket; 202. Feeding bucket; 203. Feeding auxiliary plate; 204. Partition plate; 205. Material guiding slope; 206. Filter plate; 3. , sand and gravel separation mechanism; 301, roller; 302, leakage hole; 303, spiral conveyor plate; 304, push plate; 305, gear ring 1; 306, gear ring 2; 307, operating cavity; 308, adjustment cylinder; 309, reset spring; 310, initial leakage hole; 311, reduced leakage hole; 312, limit slot; 313, force block; 314, side sealing cylinder; 315, slot; 316, force block; 317, adjustment gear ring; 318, fixed seat; 319, slide bar; 320, electric telescopic rod; 321, sliding connecting rod; 322, slide seat; 323, driving motor; 324, worm; 4, separation drive mechanism; 401, driving roller; 402, cleaning block; 403, gear ring three; 404, isolation cover; 405, driving device; 406, transmission shaft; 407, driving gear; 5, crushing device; 501, support plate; 502, support leg; 503 , conveyor belt one; 504, cone crusher; 505, guide hopper; 6, sand and gravel conveying mechanism; 601, sand and gravel conveying device; 602, chain conveyor belt; 603, limit plate; 604, driving mechanism; 605, support plate; 606, material trough; 607, support rod; 608, rotating rod; 609, material shifting block; 7, discharge conveyor belt; 701, conveyor belt two; 702, bracket; 8, water pipe bracket; 9, water outlet pipe; 10, sprinkler head. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] Combined with Figure 1 , Attachment Figure 2 As shown: A sand and gravel separation device for machine-made sand production comprises an equipment body 1, a discharging conveyor belt 7 is arranged at the bottom of the equipment body 1, a feeding structure 2 is arranged at one end of the equipment body 1, and a crushing device 5 capable of crushing the separated stones again is arranged at the other end, a sand and gravel separation mechanism 3 for separating sand and gravel by rotation is arranged in the equipment body 1, a separation driving mechanism 4 for driving the sand and gravel separation mechanism 3 to rotate is arranged on the equipment body 1, and a sand and gravel conveying mechanism 6 is arranged below the equipment body 1, one end of which is inserted into the feeding structure 2 and the other end of which is located below the crushing device 5 and can convey the crushed stones to the feeding structure 2 again.

[0034] The working principle of the present invention is as follows: during feeding, sand and gravel enter the sand and gravel separation mechanism 3 through the feeding structure 2, and the sand and gravel conveying mechanism 6 can automatically convey the collected and crushed sand and gravel to the feeding structure 2 again, the separation drive mechanism 4 can drive the sand and gravel conveying mechanism 6 to work and clean up the stuck large volume of sand and gravel, the crushing device 5 can re-crush the large volume of sand and gravel output from the discharge port of the sand and gravel separation mechanism 3 and convey it to the sand and gravel conveying mechanism 6, and the discharge conveyor belt 7 is used to carry qualified sand and gravel output from the bottom of the equipment body 1.

[0035] Combined with Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 8 , Attachment Fig. 9 As shown: The equipment body 1 includes an outer shell 101, a working chamber 102 is arranged in the outer shell 101, and a sand and gravel separation mechanism 3 includes a roller 301 rotating in the working chamber 102, a plurality of leakage holes 302 are arranged on the roller 301 for sand and gravel to pass through, a spiral conveying plate 303 and a plurality of pushing plates 304 that can push sand and gravel to follow the rotating movement of the roller 301 are arranged on the inner wall, The separation drive mechanism 4 comprises an isolation cover 404 located on the outer shell 101, a driving roller 401 capable of driving the drum 301 to rotate is arranged in the isolation cover 404, a second gear ring 306 is arranged on the drum 301, a third gear ring 403 meshing with the second gear ring 306 is arranged on the driving roller 401, and a plurality of cleaning blocks 402 are evenly distributed on the outside, which can be inserted into the leakage hole 302 to push the stones in the leakage hole 302 into the drum 301, a driving device 405 is arranged on the isolation cover 404, a transmission shaft 406 is arranged on the driving device 405, and a driving gear 407 meshing with the third gear ring 403 is arranged on the transmission shaft 406; The inner bottom of the working bin 102 is provided with a material gathering slope 110, the inner bottom of the working bin 102 and the side end surface of the material gathering slope 110 together form a discharge port of the working bin 102, the discharge conveyor belt 7 includes a second conveyor belt 701 located below the discharge port, a support leg 104 is provided at the bottom of the outer shell 101, and a bracket 702 fixed on the support leg 104 is provided on the rotating shaft of the second conveyor belt 701; Both side plates 103 are provided with through slots for sand and gravel to pass through. One side plate 103 is connected to the feed hopper 202, and the other side plate 103 is connected to the guide hopper 505. The feed hopper 202 is provided with a feed auxiliary plate 203 located in the through slot. The roller 301 is provided with a gear ring 1 305 located on both sides of a gear ring 2 306, and a plurality of rotating rods 106 and 108 are inserted into the outer shell 101. Both ends of the rotating rod 106 are provided with a driven gear 107 respectively meshing with the gear ring 1 305, and the rotating rod 2 108 is provided with a driven gear 2 109 meshing with the gear ring 2 306.

[0036] The driving device 405 is started, and the driving device 405 drives the driving gear 407 to rotate through the transmission shaft 406. The driving gear 407 drives the driving roller 401 to rotate through the gear ring 3 403. The driving roller 401 drives the drum 301 to rotate through the gear ring 2 306. The rotating drum 301 separates the sand and gravel. During separation, the qualified sand and gravel fall into the working bin 102 through the leakage hole 302 and are discharged from the discharge port at the bottom of the working bin 102 through the working bin 102 and the material collection slope 110. The discharged qualified sand and gravel are transported by the discharge conveyor belt 7. Use sand and gravel transportation equipment to transport sand and gravel into the feed hopper 202, and the sand and gravel enter the drum 301 through the feed hopper 202. The spiral conveyor plate 303 in the drum 301 can move the sand and gravel to the discharge port of the working bin 102, and in the process, a number of push plates 304 can push the sand and gravel at the bottom of the working bin 102 to make the sand and gravel rotate with the working bin 102. When the push plates 304 rotate to a certain angle with the working bin 102, the sand and gravel on the push plates 304 can fall back into the working bin 102 under the action of gravity, and the larger volume of sand and gravel output from the discharge port of the working bin 102 is directly collected and crushed by the crushing device 5; When the driving roller 401 drives the drum 301 to rotate, the cleaning block 402 on the driving roller 401 can be inserted into the leakage hole 302 to push the relatively large sand and gravel stuck in the leakage hole 302 into the drum 301 .

[0037] Combined with Figure 6 , Attachment Figure 7 As shown: An operating cavity 307 having one end passing through the cylinder wall is provided inside the cylinder wall of the drum 301, and an adjusting cylinder 308 capable of adjusting the size of the sand and gravel discharged from the leakage hole 302 is provided in the operating cavity 307, and a return spring 309 is provided between one end of the adjusting cylinder 308 and the other end of the operating cavity 307, and a plurality of force blocks 313 are provided at the other end, and one end of the force block 313 is perpendicular to the adjusting cylinder 308, and the other end is inclined toward the adjusting cylinder 308, and a side sealing cylinder 314 is sleeved at the end of the drum 301 passed by the operating cavity 307, and a slot 315 plugged with the drum 301 is provided in the side sealing cylinder 314, and a force block 316 alternately sliding on the force block 313 and the adjusting cylinder 308 is provided in the slot 315, and a side plate 103 is provided at both ends of the outer shell 101, and a driving member capable of driving the side sealing cylinder 314 to rotate is provided on the other side side plate 103; An adjusting ring gear 317 is provided on the adjusting cylinder 308, and a driving member includes a fixing seat 318 fixed on the side plate 103, two sliding rods 319 are provided at the bottom of the fixing seat 318, and a sliding connecting rod 321 is slidably sleeved on the two sliding rods 319 together, and an electric telescopic rod 320 is provided on the fixing seat 318, and a sliding seat 322 is provided at both ends of the bottom of the sliding connecting rod 321, and a driving motor 323 is provided on the sliding seat 322 at one end, and a worm 324 meshing with the adjusting ring gear 317 and driven by the driving motor 323 is provided between the two sliding seats 322; The adjusting cylinder 308 is provided with a plurality of initial leakage holes 310 and reduced leakage holes 311 corresponding to the positions of the leakage holes 302. When the reset spring 309 is compressed, the plurality of reduced leakage holes 311 correspond one-to-one to the plurality of leakage holes 302. When the reset spring 309 is reset, the plurality of initial leakage holes 310 correspond one-to-one to the plurality of leakage holes 302.

[0038] When the size of the sand and gravel output from the leakage hole 302 needs to be changed, the present invention needs to be closed and the electric telescopic rod 320 needs to be started to extend. The electric telescopic rod 320 drives the driving motor 323 and the worm 324 to move downward together by driving the sliding connecting rod 321. When the worm 324 moves downward to engage with the adjusting gear ring 317, the driving motor 323 is started to drive the worm 324 to rotate. The worm 324 drives the side sealing cylinder 314 to rotate through the adjusting gear ring 317. The adjusting cylinder 308 is provided with a plurality of The limiting card slot 312 makes the adjusting cylinder 308 rotate synchronously with the drum 301, and the side sealing cylinder 314 rotates through the force block 313 and the force block 316 to make the adjusting cylinder 308 translate on the drum 301, at this time, the reduced leakage hole 311 or the initial leakage hole 310 can be overlapped with the leakage hole 302, when the reduced leakage hole 311 overlaps with the leakage hole 302, the sand and gravel with a smaller diameter can be separated, and when the initial leakage hole 310 overlaps with the leakage hole 302, the sand and gravel with a larger diameter can be separated; When it is necessary to separate sand and gravel with a smaller diameter, the initial position of the force block 316 and the force block 313 is that the force block 316 contacts the adjusting cylinder 308, the force block 316 is at a vertical end opposite to the force block 313 on one side, and is at an inclined end opposite to the force block 313 on the other side, and a plurality of force blocks 316 and force blocks 313 are arranged alternately. Figure 6The side sealing cylinder 314 is rotated counterclockwise from the viewing angle, and the inclined section of the force block 316 moves toward the inclined end of the force block 313 and gradually contacts it, and then the force block 316 and the force block 313 contact with each other at the inclined ends and slide relative to each other, at which time the force block 316 pushes the force block 313 toward the drum 301, and the force block 313 pushes the adjustment cylinder 308 to move inside the drum 301, and the return spring 309 is compressed during the process, and when the force block 316 and the force block 313 move relative to each other from the inclined end to the opposite surface, the adjustment cylinder 308 moves into place, and at this time the reduced leakage hole 311 coincides with the leakage hole 302; When it is necessary to separate the sand and gravel with larger diameter, continue to Figure 6 Rotate the side sealing cylinder 314 counterclockwise until the force block 316 is separated from the opposite surfaces of the force block 313. At this time, the reset spring 309 drives the adjustment cylinder 308 to move in the opposite direction and reset. During the process, the sound of the force block 313 hitting the inner wall of the slot 315 can be heard. At this time, the initial leakage hole 310 coincides with the leakage hole 302.

[0039] Combined with Figure 3 , Attachment Figure 4 , Attachment Figure 8 , Attachment Fig. 9 As shown: The crushing device 5 includes a support plate 501, on which a cone crusher 504 capable of crushing stones is provided, a guide hopper 505 is provided between the input port of the cone crusher 504 and the output port of the equipment body 1, the output port of the cone crusher 504 passes through the support plate 501 and a conveyor belt 503 is provided below the support plate 501, the feeding structure 2 includes a feeding hopper 202 connected to the input port of the equipment body 1, a carrying bucket 201 is provided on the feeding hopper 202, the sand and gravel conveying mechanism 6 includes a sand and gravel conveying device 601 with a top passing through the carrying bucket 201, the bottom end of the sand and gravel conveying device 601 is located below the conveyor belt 503, the sand and gravel conveying device 601 includes a chain conveyor belt 602 capable of conveying sand and gravel, the chain conveyor belt 602 is provided with a plurality of limit plates 603 capable of preventing sand and gravel from rolling down, a plurality of rotating rods 608 are provided on the rotating shafts at both ends of the top of the sand and gravel conveying device 601, and a material shifting block 609 is provided at the end of the rotating rod 608; The place where the carrying bucket 201 is passed by the gravel conveying device 601 is provided with a partition 204 to prevent gravel from passing through the carrying bucket 201 and falling. A guide slope 205 is provided between the partition 204 and the inner wall of the carrying bucket 201. The end of the gravel conveying device 601 is provided with a driving mechanism 604 fixed on the carrying bucket 201. A support plate 605 is fixed at the bottom of the carrying bucket 201, a material trough 606 extending along the inclined direction of the chain conveyor 602 is provided at the side end of the support plate 605, and a support rod 607 is provided at the bottom; A fixed plate 105 is provided on the support leg 104, and the bottom rotating shaft of the sand and gravel conveying device 601 is connected to the fixed plate 105. The bottom of the support plate 501 is provided with support legs 502 and a support frame. The rotating shafts at both ends of the conveyor belt 503 are respectively connected to the support legs 502 and the support frame, and the support frame is connected to the support leg 104.

[0040] Working principle of crushing device 5: the sand and gravel with a large volume outputted from the discharge port of working bin 102 enters cone crusher 504 through guide hopper 505 for re-crushing. Cone crusher 504 is mainly driven by the main shaft to rotate in the eccentric sleeve, so that the crushing wall crushes the sand and gravel, which belongs to the prior art and is not described in detail in the present invention. The sand and gravel crushed by cone crusher 504 is outputted from the bottom of cone crusher 504 to conveyor belt 1 503, and transported to sand and gravel conveying mechanism 6 by conveyor belt 1 503, and transported to feeding structure 2 by sand and gravel conveying mechanism 6 for re-separation; Working principle of the gravel conveying mechanism 6: when the gravel on the conveyor belt 503 moves to the chain conveyor 602, since the gravel conveying device 601 is in an inclined state, the limit plate 603 on the chain conveyor 602 can push the gravel to move along the movement direction of the chain conveyor 602. After moving to the top of the carrying bucket 201, the gravel falls directly onto the guide slope 205 in the carrying bucket 201 under the action of gravity, and the gravel is dispersed to both sides on the guide slope 205. When the gravel conveying device 601 is working, it will drive the rotating rod 608 to rotate. At this time, the rotating rotating rod 608 can push the gravel dispersed to both sides to the feed hopper 202 through the material shifting block 609 to avoid the accumulation of gravel on both sides of the guide slope 205. The present invention will generate vibration during the working process. The gravel in the carrying bucket 201 will gradually move to the feed hopper 202 under the vibration and enter the drum 301 through the feed hopper 202 to separate the gravel; After the chain conveyor 602 transports the sand and gravel into the feeding structure 2, the chain conveyor 602 will move from the top to the bottom. At this time, the dust or fine sand and gravel adhered to the chain conveyor 602 will fall under the action of vibration and gravity. The fallen dust or fine sand and gravel will be received by the material trough 606 and output through the bottom of the material trough 606.

[0041] Combined with Figure 1 , Attachment Figure 5 , Attachment Figure 8 , Attachment Fig. 9 As shown: A water pipe bracket 8 is provided on the driving device 405, and a water outlet pipe 9 is fixedly provided on the water pipe bracket 8. A filter plate 206 capable of filtering water is provided on the feed hopper 202, and a water spray head 10 is provided at the end of the water outlet pipe 9 for spraying water toward the filter plate 206. The water flowing out of the filter plate 206 falls onto the chain conveyor 602. The chain conveyor 602 in the present invention is composed of a plurality of chain connecting plates, and the moving front end of each chain connecting plate is located at the bottom of the chain connecting plate in the moving direction, which can greatly reduce water loss, and most of the water carried by the chain conveyor 602 will flow to the carrying bucket 201.

[0042] During specific implementation, the water outlet pipe 9 is connected to a water supply device, and water is sprayed out from the water nozzle 10. The sprayed water falls on the filter plate 206 and the sand and gravel rolling down from the filter plate 206, so that the sand and gravel can be moistened before separation. After the water falls on the filter plate 206, it will pass through the filter plate 206 to avoid a large amount of water flowing into the sand and gravel separation mechanism 3, thereby reducing the sand and gravel separation efficiency. The water passing through the filter plate 206 will flow to the chain conveyor 602 and the sand and gravel on the chain conveyor 602, so that the crushed sand and gravel can be moistened again.

[0043] Specific implementation method: The present invention provides a sand and gravel separation device for machine-made sand production. When the present invention is used to separate sand and gravel: Start the separation drive mechanism 4 to drive the drum 301 to rotate, and use the sand and gravel transportation equipment to transport the sand and gravel through the feeding structure 2 to the sand and gravel separation mechanism 3 for sand and gravel separation. The driving part can change the size of the separated sand and gravel by adjusting the sand and gravel separation mechanism 3. The larger sand and gravel are moved to the crushing device 5 through the sand and gravel separation mechanism 3 for crushing, and the crushing device 5 re-transports the crushed sand and gravel to the feeding structure 2 through the sand and gravel conveying mechanism 6 for separation again. The discharge conveyor belt 7 is used to carry qualified sand and gravel output from the bottom of the equipment body 1. The separation drive mechanism 4 can drive the sand and gravel conveying mechanism 6 to work and clean up the stuck larger volume of sand and gravel. The water sprayed by the water spray head 10 can not only moisten the sand and gravel passing through the feeding hopper 202, but also moisten the crushed sand and gravel conveyed by the sand and gravel conveying mechanism 6.

[0044] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A sand and gravel separation device for machine-made sand production, comprising a device body (1), a discharging conveyor belt (7) being provided at the bottom of the device body (1), characterized in that: The equipment body (1) is provided with a feeding structure (2) at one end and a crushing device (5) capable of crushing the separated stones again at the other end; a sand and stone separation mechanism (3) capable of separating sand and stone by rotating is provided in the equipment body (1); a separation driving mechanism (4) capable of driving the sand and stone separation mechanism (3) to rotate is provided on the equipment body (1); and a sand and stone conveying mechanism (6) capable of conveying the crushed stones to the feeding structure (2) again is provided below the equipment body (1); one end of the sand and stone conveying mechanism (6) is inserted into the feeding structure (2) and the other end of the sand and stone conveying mechanism (6) is located below the crushing device (5) and capable of conveying the crushed stones to the feeding structure (2) again; The device body (1) comprises an outer shell (101), a working chamber (102) is arranged in the outer shell (101), and a sand and gravel separation mechanism (3) comprises a roller (301) rotating in the working chamber (102), a plurality of material leakage holes (302) are arranged on the roller (301) for sand and gravel to pass through, a spiral conveying plate (303) and a plurality of material pushing plates (304) are arranged on the inner wall for pushing sand and gravel to follow the rotation of the roller (301), an operating cavity (307) is arranged inside the wall of the roller (301) with one end passing through the wall, an adjusting cylinder (308) is arranged in the operating cavity (307) for adjusting the size of sand and gravel discharged from the material leakage hole (302), and one end of the adjusting cylinder (308) is connected to the operating cavity (307). ) and the other end thereof; a return spring (309) is provided between the two ends; a plurality of force blocks (313) are provided at the other end; one end of the force block (313) is perpendicular to the adjusting cylinder (308) and the other end is inclined toward the adjusting cylinder (308); a side sealing cylinder (314) is sleeved on the end of the roller (301) through which the operating cavity (307) passes; a slot (315) is provided in the side sealing cylinder (314) for plugging with the roller (301); a force applying block (316) is provided in the slot (315) for sliding alternately on the force block (313) and the adjusting cylinder (308); side plates (103) are provided at both ends of the outer shell (101); a driving member capable of driving the side sealing cylinder (314) to rotate is provided on the other side side plate (103).

2. The sand and gravel separation equipment for machine-made sand production according to claim 1 is characterized in that: The crushing device (5) comprises a support plate (501), a cone crusher (504) capable of crushing stones is disposed on the support plate (501), a guide hopper (505) is disposed between an input port of the cone crusher (504) and an output port of the device body (1), the output port of the cone crusher (504) passes through the support plate (501), and a conveyor belt (503) is disposed below the support plate (501), a feeding structure (2) comprises a feeding hopper (202) connected to the input port of the device body (1), a carrying hopper (205) is disposed on the feeding hopper (202), and a conveyor belt (206) is disposed on the feeding hopper (202). 01), the sand and gravel conveying mechanism (6) comprises a sand and gravel conveying device (601) whose top end passes through the carrying bucket (201), the bottom end of the sand and gravel conveying device (601) is located below the conveyor belt (503), the sand and gravel conveying device (601) comprises a chain conveyor belt (602) capable of conveying sand and gravel, the chain conveyor belt (602) is provided with a plurality of limit plates (603) capable of preventing sand and gravel from rolling down, a plurality of rotating rods (608) are provided on the rotating shafts at both ends of the top of the sand and gravel conveying device (601), and a material shifting block (609) is provided at the end of the rotating rod (608).

3. The sand and gravel separation equipment for machine-made sand production according to claim 2 is characterized in that: The separation drive mechanism (4) comprises an isolation cover (404) located on the outer shell (101), a driving roller (401) capable of driving the roller (301) to rotate is arranged in the isolation cover (404), a second gear ring (306) is arranged on the roller (301), a third gear ring (403) meshing with the second gear ring (306) is arranged on the driving roller (401), and a plurality of cleaning blocks (402) are evenly distributed on the outside and can be inserted into the material leakage hole (302) to push stones in the material leakage hole (302) into the roller (301), a driving device (405) is arranged on the isolation cover (404), a transmission shaft (406) is arranged on the driving device (405), and a driving gear (407) meshing with the third gear ring (403) is arranged on the transmission shaft (406).

4. The sand and gravel separation equipment for machine-made sand production according to claim 1 is characterized in that: The inner bottom of the working bin (102) is provided with a material gathering slope (110), the inner wall bottom of the working bin (102) and the side end surface of the material gathering slope (110) together form a discharge port of the working bin (102), the discharge conveyor belt (7) comprises a second conveyor belt (701) located below the discharge port, a support leg (104) is provided at the bottom of the outer shell (101), and a bracket (702) fixed on the support leg (104) is provided on the rotating shaft of the second conveyor belt (701).

5. The sand and gravel separation equipment for machine-made sand production according to claim 2, characterized in that: Both side plates (103) are provided with through slots for sand and gravel to pass through. One side plate (103) is connected to the feed hopper (202), and the other side plate (103) is connected to the guide hopper (505). The feed hopper (202) is provided with a feed auxiliary plate (203) located in the through slot.

6. The sand and gravel separation equipment for machine-made sand production according to claim 2, characterized in that: A partition plate (204) is provided at the position where the carrying bucket (201) is passed by the gravel conveying device (601) to prevent gravel from passing through the carrying bucket (201) and falling off; a material guide slope (205) is provided between the partition plate (204) and the inner wall of the carrying bucket (201); and a driving mechanism (604) fixed to the carrying bucket (201) is provided at the end of the gravel conveying device (601).

7. The sand and gravel separation equipment for machine-made sand production according to claim 6, characterized in that: A support plate (605) is fixed at the bottom of the carrying bucket (201), a material trough (606) extending along the inclined direction of the chain conveyor belt (602) is provided at the side end of the support plate (605), and a support rod (607) is provided at the bottom.

8. The sand and gravel separation equipment for machine-made sand production according to claim 1, characterized in that: An adjusting ring gear (317) is provided on the adjusting cylinder (308), and the driving member comprises a fixing seat (318) fixed on the side plate (103); two sliding rods (319) are provided at the bottom of the fixing seat (318); a sliding connecting rod (321) is slidably sleeved on the two sliding rods (319); an electric telescopic rod (320) whose bottom end is connected to the sliding connecting rod (321) is provided on the fixing seat (318); sliding seats (322) are provided at both ends of the bottom of the sliding connecting rod (321); a driving motor (323) is provided on the sliding seat (322) at one end; and a worm (324) meshing with the adjusting ring gear (317) and driven by the driving motor (323) is provided between the two sliding seats (322).

9. The sand and gravel separation equipment for machine-made sand production according to claim 1, characterized in that: The regulating cylinder (308) is provided with a plurality of initial leakage holes (310) and reduced leakage holes (311) corresponding to the positions of the leakage holes (302); when the reset spring (309) is compressed, the plurality of reduced leakage holes (311) correspond one-to-one to the plurality of leakage holes (302); when the reset spring (309) is reset, the plurality of initial leakage holes (310) correspond one-to-one to the plurality of leakage holes (302).

10. The sand and gravel separation equipment for machine-made sand production according to claim 3, characterized in that: A water pipe bracket (8) is provided on the driving device (405), a water outlet pipe (9) is fixedly provided on the water pipe bracket (8), a filter plate (206) capable of filtering water is provided on the feed hopper (202), and a water spray head (10) for spraying water toward the filter plate (206) is provided at the end of the water outlet pipe (9), and water flowing out of the filter plate (206) falls onto the chain conveyor belt (602).

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