Pipe jacking machine recycling sand and stone separation flushing device

Abstract

The application discloses a sandstone separation and flushing device for a pipe jacking machine, which comprises a rack, a screening box, a waste water collecting box, a screening mechanism, a turnover mechanism, a feeding mechanism, a stirring mechanism, a vibrating motor, a slurry pump, a water inlet pipe and a flow equalizing pipe. The screening box is obliquely arranged at the top of the rack, and the waste water collecting box is fixed in the rack. The waste water collecting box is provided with a water outlet. The slurry pump is fixed at the top of the rack on the side of the screening box, and the slurry pump is provided with a feeding pipe. One end of the feeding pipe is arranged in the raw material, and the other end of the feeding pipe is arranged in the screening box. The side, away from the feeding pipe, of the screening box is provided with a discharging port. The screening mechanism is provided with three groups of screening mechanisms, which are arranged in the screening box in sequence from top to bottom. The feeding mechanism and the stirring mechanism are arranged at the top of the upper screening mechanism. The feeding mechanism is provided with two groups of feeding mechanisms, which are arranged on the side walls of the screening boxes on the two sides of the feeding pipe. The sandstone can be quickly flushed clean, and sandstones with different sizes can be screened.

Description

Technical Field

[0001] The invention belongs to the technical field of mud and sand separation, and in particular relates to a sand and gravel separation and flushing device for recycling a pipe jacking machine. Background Art

[0002] During the jacking process of the slurry balanced pipe jacking machine, the sand and gravel mixed with mud and sand cannot be directly recycled and reused, because the sand and gravel raw materials mixed with mud and sand do not meet the structural requirements, which will cause structural changes and result in insufficient structural strength; and even the sand and gravel separated by the mud and sand separator still contains a large amount of soil impurities, so a large amount of sand and gravel cannot be recycled.

[0003] After searching, the sand and gravel processing system with patent number CN202111644339.1 includes a support frame, the number of support frames is set to two, a first tank body is fixed between the two support frames, a second tank body is provided inside the first tank body, the second tank body is made of a mesh plate, a first filter screen is embedded in the bottom of both sides of the first tank body, a water cavity and an air cavity are opened inside the first tank body, the water cavity is provided outside the air cavity, and a plurality of water nozzles are fixedly provided on the inner wall of the water cavity; its processing process has the following shortcomings: the sand and gravel in the second tank body are cleaned by the water cavity and water nozzle inside the first tank body, and the second tank body rotates during the cleaning process to mix and clean the sand and gravel and water, but because the second tank body is made of a mesh plate, the clean water stays in the second tank body for a short time, and some sand and gravel are in contact with the clean water for cleaning, resulting in the sand and gravel not being cleaned; in the process of wastewater being discharged through the first filter screen, some impurities are discharged with the wastewater, causing the filter screen to be blocked.

[0004] Patent number CN 202310046436.3 is an anti-clogging sand and gravel vibrating screen, including a support mechanism including a base and two groups of support frames; the two bases are arranged parallel to each other on the working base of the vibrating screen, and the two groups of support frames are respectively arranged above the two bases; each group of support frames is composed of two lower support frames, two upper support frames and two springs; the screening mechanism includes side plates, a first-level screen, a second-level screen and a reinforcing plate, and the two side plates are arranged oppositely between the upper ends of the two groups of support frames; a pair of slides are respectively opened at the upper and lower parts between the two side plates, and the first and second level screens are respectively provided. The first and second cleaning mechanisms are installed between the two side plates with an interval between the upper and lower parts; the first and second cleaning mechanisms have the same structure, both of which include a cleaning seat, a cleaning roller, an anti-clogging roller, a second motor, a second belt, a transverse plate and a feed protection plate; the two pairs of driving mechanisms are respectively arranged corresponding to the first and second cleaning mechanisms; its processing process has the following disadvantages: although the above-mentioned device can effectively prevent the screen from being blocked, which is beneficial for the screen to screen sand and gravel, but in the screening process of the screen, since there are still a lot of soil impurities on the sand and gravel after screening, a large amount of sand and gravel cannot be recycled. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a sand and gravel separation and flushing device for recycling a pipe jacking machine, which can be beneficial for quickly flushing sand and gravel and can adapt to screening sand and gravel of different sizes.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A sand and gravel separation and flushing device for recycling pipe boring machine, comprising a frame, a screening box, a wastewater collection box, a screening mechanism, a turning mechanism, a feeding mechanism, a material digging mechanism, a vibration motor, a mud pump, a water inlet pipe, and a flow equalizing pipe; the screening box is installed obliquely on the top of the frame, the wastewater collection box is fixed inside the frame, and a drain port is provided on one side of the wastewater collection box; the mud pump is fixed on the top of the frame on one side of the screening box, and a feeding pipe is provided on the mud pump, one end of the feeding pipe is located inside the raw material, and the other end enters the screening box; the screening box is away from the inlet There is a discharge port on one side of the material pipe; there are three groups of screening mechanisms, which are arranged in sequence inside the screening box from top to bottom; the feeding mechanism and the material-digging mechanism are both located at the top of the upper screening mechanism, and there are two groups of feeding mechanisms, which are respectively installed on the side walls of the screening box on both sides of the feeding pipe; the material-digging mechanism is installed on the side wall perpendicular to the side wall of the feeding mechanism; there is a pair of flipping mechanisms, which are respectively located on the top of the middle and lower screening mechanisms, and the two ends are respectively connected to the side walls of the screening box; there are multiple groups of water inlet pipes, which are all fixed on the outer wall of the screening box and connected to the screening mechanism. Corresponding; the flow-equalizing pipe is connected to the water inlet pipe and is evenly distributed on the side wall of the screening box above the screening mechanism; the vibration motor is fixed on the top of the screening box; first, the size of the screening mechanism is adjusted according to the material situation, and then the sand and gravel are pumped into the upper screening mechanism of the screening box through the mud pump and the feed pipe, and then the feed mechanism moves the accumulated sand and gravel to both sides of the screening box; the vibration motor drives the screening box to vibrate, thereby driving the sand and gravel to vibrate and screen, and move the sand and gravel to the discharge port; clean water is sprayed to the positive through the water inlet pipe and the flow-equalizing pipe When screening sand and gravel, the material-shifting mechanism shifts and flips the larger stones in the upper screening mechanism, which can clean the sand and gravel in the upper screening mechanism. At the same time, the flipping mechanism stirs and flips the smaller sand and gravel in the middle and lower layers, which can ensure that the sand and gravel are washed clean and prevent excessive accumulation of fine sand and gravel, resulting in poor vibration effect and thus clogging the screening mechanism. Finally, the cleaned sand and gravel are discharged through the discharge port, and the wastewater with mud and impurities enters the wastewater collection box and is discharged through the drain port for subsequent treatment.

[0008] The flip mechanism includes a rotating roller, a sealing box, a motor I, a cylinder, a fixed shaft, a reciprocating screw, a movable ring, a movable sleeve, and a flip plate; a guide groove I is provided on the inner wall of the screening box, and the guide groove I is located between the mounting grooves; a pair of sealing boxes are provided, which are symmetrically installed in the guide grooves I on the two side walls of the screening box; the two ends of the rotating roller are respectively connected to the two sealing boxes through bearings, the interior of the rotating roller is hollow, and a gear ring is provided at one end, the gear ring is located inside the sealing box, and the rotating roller is provided with a number of evenly distributed key slots; the motor I is fixed inside the sealing box, and the output end of the motor I is fixed to the inner wall of the sealing box. A gear I is provided, which is meshed with a gear ring; a fixed shaft is located inside the rotating roller, and both ends are fixed on the side walls of the sealing box; a reciprocating screw is provided with a number of evenly fixed on the fixed shaft, and corresponds one to one with the key grooves on the rotating roller; a movable sleeve is provided with a number of movable connections on the outer wall of the rotating roller, and the movable sleeve always covers the key groove of the rotating roller; a movable ring is provided with a number of movable rings, which are connected to the reciprocating screw by a thread, and a convex block is provided on the outer wall of the movable ring, and the convex block passes through the key groove on the rotating roller and is connected to the inner wall of the movable sleeve; a flip plate is provided with a number of evenly fixed On the moving sleeve; a plurality of guide blocks are arranged on the flip plate, and the guide blocks are set as square edge blocks, and the edge of the guide block is located on one side of the moving direction of the flip plate; so that when the flip plate moves and rotates, the sand and gravel flow to both sides along the edge of the guide block, which can disperse the sand and gravel and prevent sand and gravel accumulation; the cylinder is fixed on the side wall of the screening box, and the output end of the cylinder is connected to the outer wall of the sealing box; the cylinder provides power to drive the rotating roller to move along the guide groove I of the screening box through the sealing box, and at the same time, the motor I provides power to drive the rotating roller to rotate, and the rotating roller drives the moving sleeve and the flip plate to rotate, and the flip plate The rotating plate rotates to stir the sand and gravel on the screening mechanism, so that the water sprayed from the flow equalizing pipe cleans the sand and gravel; at the same time, the rotating roller drives the moving ring to rotate through the convex block, so that the moving ring moves back and forth along the reciprocating screw, thereby driving the moving sleeve and the flip plate to move back and forth along the rotating roller; the moving sleeve always covers the keyway of the rotating roller, which can prevent sand and gravel from entering the inside of the rotating roller and affecting the movement of the reciprocating screw and the moving ring; it can prevent excessive accumulation of fine sand and gravel, resulting in poor vibration effect, thereby clogging the screening mechanism, and is conducive to quickly flushing the sand and gravel.

[0009] The screening mechanism comprises a filter plate, an adjusting plate, a support plate, a motor II, a lead screw, a connecting plate, a plurality of installation grooves are arranged on the side wall of the screening box body, the filter plate is provided with a plurality of installation grooves and is installed in the corresponding installation groove, a guide groove II is arranged at the bottom of the filter plate, the adjusting plate is installed in the guide groove II at the bottom of the filter plate, the support plate is fixed on the outer side wall of the screening box body, the motor II is fixed on the end of the support plate away from the screening box body, the lead screw is rotatably connected to the side wall of the screening box body and the support plate through bearings at both ends, the connecting plate is fixed on one end of the adjusting plate and is connected with the lead screw through threads, the motor II provides power to drive the lead screw to rotate, the lead screw drives the adjusting plate to move along the guide groove II through the connecting plate through threads, the adjusting plate is dislocated with the filter hole on the filter plate, so that the size of the filter hole on the filter plate is adjusted, and different sizes of sand and gravel can be screened.

[0010] The feeding mechanism comprises a motor III, a rotating shaft, a rotating rod I, a poking rod I, a poking plate I, a rotating rod II, a poking rod II, a poking plate II, a connecting rod and a connecting rod; the motor III is fixed on the outer side wall of the screening box body, a chain wheel I is arranged on the output shaft of the motor III; the rotating shaft is rotatably connected to the side wall of the screening box body through a bearing, a chain wheel II is arranged at one end of the rotating shaft, and the chain wheel I and the chain wheel II are connected through a chain; the rotating rod I is connected to the output end of the motor III, the poking rod I is connected to one end of the rotating rod I through a rotating shaft, an installation plate I is arranged at one end of the poking rod I, and the poking plate I is fixed on the installation plate I; the connecting rod is in the shape of "L" and is connected to the side wall of the screening box body through a rotating shaft; the connecting rod and the other end of the poking rod I are connected through rotating shafts at both ends of the connecting rod; the rotating rod II is rotatably connected to the end of the rotating shaft away from the chain wheel II, the poking rod II is connected to one end of the rotating rod II through a rotating shaft, an installation plate II is arranged at one end of the poking rod II, and the other end is connected to one end of the connecting rod through a rotating shaft; the poking plate II is fixed on the installation plate II; the motor III provides power to drive the rotating rod I to rotate, the rotating rod I drives the poking rod I to rotate, the poking rod I drives the poking plate I to rotate through the installation plate I, so that the mud and sand is moved to both sides of the screening box body; at the same time, the motor IV drives the chain wheel II to rotate through the chain wheel I and the chain, the chain wheel II drives the rotating shaft to rotate, the rotating shaft drives the rotating rod II to rotate, the rotating rod II drives the poking rod II to rotate, and the poking rod II drives the poking plate II to rotate through the installation plate II, so that the mud and sand is moved to both sides of the screening box body, and the accumulation of mud and sand at the feeding pipe is prevented.

[0011] The poking mechanism comprises a support frame, a movable plate, poking teeth, a motor IV, a rack, an electric push rod, a connecting plate; a limiting groove is arranged on the inner side wall of the screening box body; the two ends of the support frame are arranged as a T shape and are installed in the corresponding limiting grooves; a through groove is arranged on the support plate; the movable plate is installed in the through groove of the support frame; a connecting seat is arranged on the top of the movable plate; the poking teeth are arranged in a plurality of numbers and are fixed on the bottom of the movable plate; the motor IV is fixed on the top of the support frame; a gear II is arranged on the output shaft of the motor IV; the rack is fixed on the inner side wall of the screening box body; the gear II is in meshing connection with the rack; the electric push rod is fixed on the top of the support frame; one end of the connecting plate is movably connected with the connecting seat on the top of the movable plate, and the other end of the connecting plate is connected with the output shaft of the electric push rod; the motor IV provides power to drive the gear II to rotate; the gear II drives the support frame to move along the rack; the support frame drives the movable plate and the poking teeth to move; the poking teeth drive the sand and stones at the top end of the filter plate to move and overturn, so that the sand and stones are washed by the uniform flow pipe, and the soil impurities on the sand and stones are washed clean; meanwhile, the electric push rod provides power to drive the connecting plate to move; the connecting plate drives the movable plate and the poking plate to move along the through groove on the support frame, so that the sand and stones can be moved transversely and overturned, and the sand and stones at the edge of the filter plate can be prevented from being not washed.

[0012] The filter holes on the filter plate in the screening mechanism always decrease from top to bottom; the better grading and screening effect of the sand and stones can be ensured.

[0013] The bottom of the screening box body is provided with a spring, a baffle and a guide column; the rack is provided with a moving groove; the guide column is arranged in a plurality of numbers and is fixed on the bottom of the screening box body; one end of the spring is fixed on the bottom of the screening box body, and the other end of the spring is fixed on the top of the rack through the guide column; the vibration motor is fixed on the top end of the screening box body; under the action of the vibration motor and the spring, the screening box body is driven to vibrate and screen, and the sand and stones in the screening box body are slowly moved to the discharge port; the baffle is located on the side of the spring; one end of the baffle is fixed on the bottom of the screening box body, and the other end of the baffle is located in the moving groove of the rack, so that the mud and water splashed during the vibration of the screening box body can be prevented.

[0014] The beneficial effects of the present application compared with the prior art are as follows:

[0015] 1) The cylinder provides power through the sealing box to drive the rotating roller to move along the guide groove Ⅰ of the screening box body. At the same time, the motor Ⅰ provides power to drive the rotating roller to rotate. The rotating roller drives the moving sleeve and the flip plate to rotate. The flip plate rotates to stir the sand and gravel on the screening mechanism, so that the water sprayed from the flow equalizing pipe cleans the sand and gravel. At the same time, the rotating roller drives the moving ring to rotate through the convex block, so that the moving ring moves back and forth along the reciprocating screw, thereby driving the moving sleeve and the flip plate to move back and forth along the rotating roller. The moving sleeve always covers the keyway of the rotating roller, which can prevent sand and gravel from entering the inside of the rotating roller and affecting the movement of the reciprocating screw and the moving ring. It can prevent excessive accumulation of fine sand and gravel, resulting in poor vibration effect and thus clogging the screening mechanism, and is conducive to quickly washing the sand and gravel clean. The edge of the guide block is located on one side of the moving direction of the flip plate, so that when the flip plate moves and rotates, the sand and gravel flow to both sides along the edge of the guide block, which can disperse the sand and gravel and prevent sand and gravel accumulation.

[0016] 2) Motor II provides power to drive the screw to rotate. The screw drives the adjustment plate to move along the guide groove II through the connecting plate through the thread, so that the adjustment plate and the filter holes on the filter plate are misaligned, thereby achieving the effect of adjusting the filter hole size on the filter plate, which can adapt to the screening of sand and gravel of different sizes;

[0017] 3) Motor IV provides power to drive the gear to rotate, the gear drives the support frame to move along the rack, the support frame drives the movable plate and the material-diverting teeth to move, and the material-diverting teeth drive the sand and gravel on the top of the filter plate to move and flip, so as to facilitate the flow-equalizing pipe to wash the sand and gravel and wash away the soil and impurities on the sand and gravel; at the same time, the electric push rod provides power to drive the connecting plate to move, and the connecting plate drives the movable plate and the material-diverting plate to move along the through groove on the support frame, which can move horizontally and flip the sand and gravel to prevent the sand and gravel on the edge of the filter plate from not being washed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attachment Figure 1 This is a schematic diagram of the structure of a sand and gravel separation and flushing device for a pipe jacking machine. Figure 1 ;

[0019] Attachment Figure 2 This is a schematic diagram of the structure of a sand and gravel separation and flushing device for a pipe jacking machine. Figure 2 ;

[0020] Attachment Figure 3 This is a schematic diagram of the internal structure of a sand and gravel separation and flushing device for recycling a pipe jacking machine according to the present invention;

[0021] Attachment Figure 4 This is a schematic diagram of the structure of the flip mechanism in the sand and gravel separation and flushing device for a pipe jacking machine. Figure 1 ;

[0022] Attachment Figure 5This is a partial structural diagram of a turning mechanism in a sand and gravel separation and flushing device for a pipe jacking machine according to the present invention;

[0023] Attachment Figure 6 This is a structural schematic diagram of a screening mechanism in a sand and gravel separation and flushing device for a pipe jacking machine according to the present invention;

[0024] Attachment Figure 7 This is a schematic diagram of the structure of the feeding mechanism in the sand and gravel separation and flushing device for a jacking tunnel boring machine of the present invention. Figure 1 ;

[0025] Attachment Figure 8 This is a schematic diagram of the structure of the feeding mechanism in the sand and gravel separation and flushing device for a jacking tunnel boring machine of the present invention. Figure 2 ;

[0026] Attachment Figure 9 It is attached Figure 8 A schematic diagram of the enlarged structure of the middle part A;

[0027] Attachment Figure 10 This is a schematic diagram of the structure of the feeding mechanism in the sand and gravel separation and flushing device for a jacking tunnel boring machine of the present invention. Figure 3 ;

[0028] Attachment Figure 11 This is a structural schematic diagram of a material-dispensing mechanism in a sand and gravel separation and flushing device for a pipe jacking machine according to the present invention;

[0029] Attachment Figure 12 It is attached Figure 11 A schematic diagram of the enlarged structure of part B in FIG.

[0030] In the figure: 1, frame; 2, screening box; 201, discharge port; 202, mounting groove; 203, guide groove I; 204, spring; 205, baffle; 206, guide column; 3, wastewater collection box; 301, drain port; 4, screening mechanism; 401, filter plate; 4011, guide groove II; 402, adjusting plate; 403, support plate; 404, motor II; 405, lead screw; 406, connecting plate; 5, turnover mechanism; 501, rotating roller; 5011, gear ring; 5012, key groove; 502, sealing box; 503, motor I; 5031, gear I; 504, air cylinder; 505, fixed shaft; 506, reciprocating lead screw; 507, moving ring; 5071, protruding block; 508, moving sleeve; 509, turnover plate; 5091, flow guide block; 6, feeding mechanism; 601, motor III; 6011, sprocket I; 602, rotating shaft; 6021, sprocket II; 603, rotating rod I; 604, actuating rod I; 6041, mounting plate I; 605, actuating plate I; 606, rotating rod II; 6061, mounting plate II; 607, actuating rod II; 608, actuating plate II; 609, connecting rod; 610, connecting rod; 7, actuating mechanism; 701, support frame; 7011, through groove; 702, movable plate; 7021, connecting seat; 703, actuating tooth; 704, motor IV; 7041, gear II; 705, rack; 706, electric push rod; 707, connecting plate; 8, vibration motor; 9, mud pump; 901, feeding pipe; 11, water inlet pipe; 12, flow equalizing pipe. DETAILED DESCRIPTION

[0031] For the convenience of persons skilled in the art to understand, the following will be combined with the accompanying drawings to describe the present application in detail. Figure 1-12 The technical solutions of the present application are further specifically described.

[0032] A sand and gravel separation and flushing device for a pipe jacking machine includes a frame 1, a screening box 2, a wastewater collection box 3, a screening mechanism 4, a turning mechanism 5, a feeding mechanism 6, a material digging mechanism 7, a vibration motor 8, a mud pump 9, a water inlet pipe 11, and a flow equalizing pipe 12; the screening box 2 is installed obliquely on the top of the frame 1, the wastewater collection box 3 is fixed inside the frame 1, and a drain port 301 is provided on one side of the wastewater collection box 3; the mud pump 9 is fixed on the top of the frame 1 on one side of the screening box 2, and a feeding pipe 901 is provided on the mud pump 9, one end of the feeding pipe 901 is located inside the raw material, and the other end enters the inside of the screening box 2 ; A discharge port 201 is provided on the side of the screening box 2 away from the feed pipe 901; the screening mechanism 4 is provided with three groups, which are arranged in sequence from top to bottom inside the screening box 2; the feeding mechanism 6 and the material-dispensing mechanism 7 are both located at the top of the upper screening mechanism 4, and the feeding mechanism 6 is provided with two groups, which are respectively installed on the side walls of the screening box 2 on both sides of the feed pipe 901; the material-dispensing mechanism 7 is installed on the side wall perpendicular to the side wall on which the feeding mechanism 6 is installed; a pair of flipping mechanisms 5 are provided, which are respectively located at the top of the middle and lower screening mechanisms 4, and the two ends are respectively connected to the side walls of the screening box 2; the water inlet pipe 11 is provided with multiple groups, which are all fixed on the screening box 2 On the outer wall, and corresponding to the screening mechanism 4; the flow equalizing pipe 12 is connected to the water inlet pipe 11, and is evenly distributed on the side wall of the screening box 2 above the screening mechanism 4; the vibration motor 8 is fixed on the top of the screening box 2; first, according to the situation of the material, the size of the screening mechanism 4 is adjusted, and then the sand and gravel are pumped into the upper screening mechanism 4 of the screening box 2 through the mud pump 9 and the feed pipe 901, and then the feed mechanism 6 moves the accumulated sand and gravel to both sides of the screening box 2; the vibration motor 8 drives the screening box 2 to vibrate, thereby driving the sand and gravel to vibrate and screen, and move the sand and gravel to the discharge port 201; the clean water is passed through the The water is sprayed onto the sand and gravel being screened through the water inlet pipe 11 and the flow equalizing pipe 12. The material-shifting mechanism 7 shifts and flips the larger stones in the upper screening mechanism 4, so that the sand and gravel in the upper screening mechanism 4 can be cleaned. At the same time, the flipping mechanism 5 stirs and flips the smaller sand and gravel in the middle and lower layers, which can ensure that the sand and gravel are washed clean and prevent excessive accumulation of fine sand and gravel, resulting in poor vibration effect and thus clogging the screening mechanism 4. Finally, the cleaned sand and gravel are discharged through the discharge port 201, and the wastewater with mud and impurities enters the wastewater collection box 3 and is discharged through the drain port for subsequent treatment.

[0033] The turning mechanism 5 includes a rotating roller 501, a sealing box 502, a motor I 503, a cylinder 504, a fixed shaft 505, a reciprocating screw 506, a moving ring 507, a moving sleeve 508, and a turning plate 509; a guide groove I 203 is provided on the inner wall of the screening box 2, and the guide groove I 203 is located between the mounting grooves 202; the sealing box 502 is provided with a pair of guide grooves I 203 symmetrically installed on the two side walls of the screening box 2; the two ends of the rotating roller 501 are respectively connected to the two sealing boxes 502 through bearings, the interior of the rotating roller 501 is set to be hollow, and a gear ring 5011 is provided at one end, the gear ring 5011 is located inside the sealing box 502, and the rotating roller 501 is provided with a number of evenly distributed key slots 5012; the motor I 503 is fixed to the sealing box Inside 502, the output end of motor I 503 is provided with gear I 5031, and gear I 5031 is meshed with gear ring 5011; the fixed shaft 505 is located inside the rotating roller 501, and both ends are respectively fixed on the side walls of the sealing box 502; the reciprocating screw 506 is provided with a number of evenly fixed on the fixed shaft 505, and corresponds one to one with the key grooves 5012 on the rotating roller 501; the movable sleeve 508 is provided with a number of movable connections on the outer wall of the rotating roller 501, and the movable sleeve 508 always covers the key groove 5012 of the rotating roller 501; the movable ring 507 is provided with a number of movable connections, and the movable ring 507 is connected to the reciprocating screw 506 by a thread, and a protrusion 5071 is provided on the outer wall of the movable ring 507, and the protrusion 5071 passes through the key groove on the rotating roller 501 5012 is connected to the inner wall of the movable sleeve 508; the flip plate 509 is provided with a number of evenly fixed on the movable sleeve 508; the flip plate 509 is provided with a number of guide blocks 5091, which are set as square edges. The edges of the guide blocks 5091 are located on one side of the moving direction of the flip plate 509, so that when the flip plate 509 moves and rotates, the sand and gravel flow to both sides along the edges of the guide blocks 5091, which can disperse the sand and gravel and prevent sand and gravel accumulation; the cylinder 504 is fixed on the side wall of the screening box 2, and the output end of the cylinder 504 is connected to the outer wall of the sealing box 502; the cylinder 504 provides power to drive the rotating roller 501 to move along the guide groove Ⅰ203 of the screening box 2 through the sealing box 502, and at the same time, the motor Ⅰ provides power to drive the rotating roller to rotate The rotating roller drives the movable sleeve and the flip plate to rotate, and the rotation of the flip plate stirs the sand and gravel on the screening mechanism 4, so that the water sprayed from the flow equalizing pipe 12 cleans the sand and gravel; at the same time, the rotating roller 501 drives the movable ring 507 to rotate through the protrusion 5071, so that the movable ring 507 moves back and forth along the reciprocating screw 506, thereby driving the movable sleeve 508 and the flip plate 509 to move back and forth along the rotating roller 501, and the movable sleeve 508 always covers the key groove 5012 of the rotating roller 501, which can prevent sand and gravel from entering the interior of the rotating roller 501 and affecting the movement of the reciprocating screw 506 and the movable ring 507; it can prevent excessive accumulation of fine sand and gravel, resulting in poor vibration effect, thereby clogging the screening mechanism 4, and is conducive to quickly flushing the sand and gravel.

[0034] The screening mechanism 4 includes a filter plate 401, an adjustment plate 402, a support plate 403, a motor II 404, a screw 405, and a connecting plate 406; a plurality of mounting grooves 202 are provided on the side wall of the screening box 2, and the filter plate 401 is provided with a plurality of guide grooves II 4011 and installed in the corresponding mounting grooves 202; a guide groove II 4011 is provided at the bottom of the filter plate 401; the adjustment plate 402 is installed in the guide groove II 4011 at the bottom of the filter plate 401; the support plate 403 is fixed on the outer wall of the screening box 2, and the motor II 404 is fixed on the support plate 403 away from the screening box 2. At one end, both ends of the lead screw 405 are rotatably connected to the side wall of the screening box 2 and the support plate 403 through bearings; the connecting plate 406 is fixed to one end of the adjusting plate 402 and is connected to the lead screw 405 through a thread; the motor II 404 provides power to drive the lead screw 405 to rotate, and the lead screw 405 drives the adjusting plate 402 to move along the guide groove II 4011 through the connecting plate 406 through the thread, so that the adjusting plate 402 is misaligned with the filter holes on the filter plate 401, thereby achieving the effect of adjusting the size of the filter holes on the filter plate 401, which can adapt to the screening of sand and gravel of different sizes.

[0035] The feeding mechanism 6 includes a motor III 601, a rotating shaft 602, a rotating rod I 603, a toggle rod I 604, a material-diverting plate I 605, a rotating rod II 606, a toggle rod II 607, a material-diverting plate II 608, a connecting rod 609, and a connecting rod 610; the motor III 601 is fixed to the outer wall of the screening box 2, and a sprocket I 6011 is provided on the output shaft of the motor III 601; the rotating shaft 602 is rotatably connected to the side wall of the screening box 2 through a bearing, and a sprocket II 6021 is provided at one end of the rotating shaft 602, and the sprocket I 6011 is connected to the screening box 2. The sprocket II 6021 is connected by a chain; the rotating rod I 603 is connected to the output end of the motor III 601, the toggle rod I 604 is connected to one end of the rotating rod I 603 through a rotating shaft, and one end of the toggle rod I 604 is provided with a mounting plate I 6041, and the toggle plate I 605 is fixed on the mounting plate I 6041; the connecting rod 610 is "L" shaped and is connected to the side wall of the screening box 2 through a rotating shaft; both ends of the connecting rod 609 are connected to one end of the connecting rod 610 and the other end of the toggle rod I 604 through a rotating shaft; the rotating rod II 606 rotates The toggle rod II 607 ​​is connected to one end of the rotating rod II 606 via a rotating shaft. One end of the toggle rod II 607 ​​is provided with a mounting plate II 6061, and the other end is connected to one end of the connecting rod 610 via a rotating shaft. The material-diverting plate II 608 is fixed on the mounting plate II 6061. The motor III 601 provides power to drive the rotating rod I 603 to rotate, and the rotating rod I 603 drives the toggle rod I 604 to rotate. The toggle rod I 604 drives the material-diverting plate I 608 through the mounting plate I 6041. 05 rotates, thereby moving the mud and sand to both sides of the screening box 2; at the same time, the motor III 601 drives the sprocket II 6021 to rotate through the sprocket I 6011 and the chain, the sprocket II 6021 drives the rotating shaft 602 to rotate, the rotating shaft 602 drives the rotating rod II 606 to rotate, the rotating rod II 606 drives the toggle rod II 607 ​​to rotate, and the toggle rod II 607 ​​drives the diverter plate II 608 to rotate through the mounting plate II 6061, thereby moving the mud and sand to both sides of the screening box 2, which can prevent the mud and sand from accumulating at the feed pipe 901.

[0036] The material-digging mechanism 7 includes a support frame 701, a movable plate 702, a material-digging tooth 703, a motor IV 704, a rack 705, an electric push rod 706, and a connecting plate 707; a limiting groove is provided on the inner side wall of the screening box 2; both ends of the support frame 701 are set to "T" shape and are installed in the corresponding limiting grooves, and a through groove 7011 is provided on the support frame 701; the movable plate 702 is installed in the through groove 7011 of the support frame 701, and a connecting seat 7021 is provided on the top of the movable plate 702; a plurality of material-digging teeth 703 are provided, which are fixed to the bottom of the movable plate 702; the motor IV 704 is fixed to the top of the support frame 701, and a gear II 7041 is provided on the output shaft of the motor IV 704; the rack 705 is fixed on the inner side wall of the screening box 2, and the gear II 7041 is meshed with the rack 705; the electric push rod 706 is fixed on the top of the support frame 701 The motor Ⅳ704 provides power to drive the gear Ⅱ7041 to rotate, and the gear Ⅱ7041 drives the support frame 701 to move along the rack 705, and the support frame 701 drives the movable plate 702 and the material-digging tooth 703 to move, and the material-digging tooth 703 drives the sand and gravel on the top of the filter plate 401 to move and flip, so as to facilitate the flow-equalizing pipe 12 to wash the sand and gravel, and wash away the soil and impurities on the sand and gravel; at the same time, the electric push rod 706 provides power to drive the connecting plate 707 to move, and the connecting plate 707 drives the movable plate 702 and the material-digging tooth 703 to move along the through groove 7011 on the support frame 701, which can move horizontally and flip the sand and gravel to prevent the sand and gravel on the edge of the filter plate 401 from being washed.

[0037] The filter holes on the filter plate 401 in the screening mechanism 4 always keep decreasing from top to bottom, which can ensure that the sand and gravel can be better graded and screened.

[0038] The bottom of the screening box 2 is provided with a spring 204, a baffle 205, and a guide column 206; a movable groove is provided on the frame 1, and the guide column 206 is provided with several uniformly fixed at the bottom of the screening box 2; one end of the spring 204 is fixed to the bottom of the screening box 2, and the other end passes through the guide column 206 and is fixed to the top of the frame 1; the vibration motor 8 is fixed to the top of the screening box 2. Under the action of the vibration motor 8 and the spring 204, the screening box 2 is driven to vibrate and screen, and the sand and gravel in the screening box 2 are slowly moved toward the discharge port 201; the baffle 205 is located on one side of the spring 204, one end is fixed to the bottom of the screening box 2, and the other end is located in the movable groove of the frame 1, which can prevent the mud and water generated during the vibration of the screening box 2 from splashing.

[0039] A sand and gravel separation and flushing device for recycling pipe jacking machine has the following working process: first, the size of the screening mechanism 4 is adjusted according to the material situation, and then the sand and gravel mixed with mud and sand are pumped into the upper screening mechanism 4 of the screening box 2 during the slurry balance pipe jacking machine jacking process through the mud pump 9, and then the feeding mechanism 6 moves the accumulated sand and gravel to both sides of the screening box 2; the vibration motor 8 drives the screening box 2 to vibrate, thereby driving the sand and gravel to vibrate and screen, and move the sand and gravel to the discharge port 201; clean water is sprayed to the For the sand and gravel being screened, the material-shifting mechanism 7 shifts and flips the larger stones in the upper screening mechanism 4, which can clean the sand and gravel in the upper screening mechanism 4. At the same time, the flipping mechanism 5 stirs and flips the smaller sand and gravel in the middle and lower layers, which can ensure that the sand and gravel are washed clean and prevent excessive accumulation of fine sand and gravel, resulting in poor vibration effect and thus clogging the screening mechanism 4. Finally, the cleaned sand and gravel are discharged through the discharge port 201, and the wastewater with mud and impurities enters the wastewater collection box 3 and is discharged through the drain port for subsequent treatment.

[0040] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A sand and gravel separation and flushing device for a pipe jacking machine, comprising a frame, a screening box, a wastewater collection box, a screening mechanism, a turning mechanism, a feeding mechanism, a material diverting mechanism, a vibration motor, a mud pump, a water inlet pipe, and a flow equalizing pipe; characterized in that The screening box is installed at an angle on the top of the frame, the wastewater collection box is fixed inside the frame, and a drain port is provided on one side of the wastewater collection box; the mud pump is fixed on the top of the frame on one side of the screening box, and a feed pipe is provided on the mud pump, one end of the feed pipe is located inside the raw material, and the other end enters the screening box; a discharge port is provided on the side of the screening box away from the feed pipe; there are three groups of screening mechanisms, which are arranged in sequence up and down inside the screening box; the feeding mechanism and the material diverting mechanism are both located on the top of the upper screening mechanism, and the feeding mechanism is provided with two The feed mechanism is installed on the side wall of the screening box on both sides of the feed pipe; the material diverting mechanism is installed on the side wall perpendicular to the side wall of the feed mechanism; a pair of flipping mechanisms are provided, which are respectively located on the top of the middle and lower screening mechanisms, and the two ends are connected to the side wall of the screening box; multiple groups of water inlet pipes are fixed on the outer wall of the screening box and correspond to the screening mechanisms; the flow equalizing pipe is connected to the water inlet pipe and is evenly distributed on the side wall of the screening box above the screening mechanism; the vibration motor is fixed on the top of the screening box; The feeding mechanism includes a motor III, a rotating shaft, a rotating rod I, a toggle rod I, a material-diverting plate I, a rotating rod II, a toggle rod II, a material-diverting plate II, a connecting rod, and a connecting rod; the motor III is fixed to the outer wall of the screening box, and a sprocket I is provided on the output shaft of the motor III; the rotating shaft is rotatably connected to the side wall of the screening box through a bearing, a sprocket II is provided at one end of the rotating shaft, and the sprocket I and the sprocket II are connected by a chain; the rotating rod I is connected to the output end of the motor III, and the toggle rod I is connected to one end of the rotating rod I through the rotating shaft, and the toggle rod is connected to the output end of the motor III. One end of rod I is provided with mounting plate I, and material shifting plate I is fixed on mounting plate I; the connecting rod is L-shaped and connected to the side wall of the screening box through a rotating shaft; both ends of the connecting rod are connected to one end of the connecting rod and the other end of the shifting rod I respectively through a rotating shaft; the rotating rod II is rotatably connected to the end of the rotating shaft away from the sprocket II, and the shifting rod II is connected to one end of the rotating rod II through a rotating shaft. One end of the shifting rod II is provided with mounting plate II, and the other end is connected to one end of the connecting rod through a rotating shaft; the material shifting plate II is fixed on mounting plate II; The material-diverting mechanism includes a support frame, a movable plate, a material-diverting tooth, a motor IV, a rack, an electric push rod, and a connecting plate; a limit groove is provided on the upper inner wall of the screening box; both ends of the support frame are set in a "T" shape and are installed in the corresponding limit grooves, and a through groove is provided on the support plate; the movable plate is installed in the through groove of the support frame, and a connecting seat is provided on the top of the movable plate; a number of material-diverting teeth are provided and fixed to the bottom of the movable plate; the motor IV is fixed to the top of the support frame; a gear II is provided on the output shaft of the motor IV; the rack is fixed to the inner wall of the screening box, and the gear II is meshed with the rack; the electric push rod is fixed to the top of the support frame, one end of the connecting plate is movably connected to the connecting seat on the top of the movable plate, and the other end is connected to the output shaft of the electric push rod; The flipping mechanism includes a rotating roller, a sealing box, a motor I, a cylinder, a fixed shaft, a reciprocating screw, a moving ring, a moving sleeve, and a flip plate; a plurality of mounting grooves are provided on the inner wall of the screening box body, a guide groove I is provided on the inner wall of the screening box body, and the guide groove I is located between the mounting grooves; the sealing box is provided with a pair of guide grooves I symmetrically installed on the two side walls of the screening box body; the two ends of the rotating roller are respectively connected to the two sealing boxes through bearings, the interior of the rotating roller is hollow, and a gear ring is provided at one end, the gear ring is located inside the sealing box, and the rotating roller is provided with a plurality of evenly distributed key slots; the motor I is fixed inside the sealing box, and a gear I is provided at the output end of the motor I, and the gear I is meshed with the gear ring; the fixed shaft is located inside the rotating roller, and both ends They are respectively fixed on the side walls of the sealing box; there are several reciprocating screws that are evenly fixed on the fixed shaft and correspond one to one with the key slots on the rotating roller; there are several movable sleeves that are movably connected to the outer wall of the rotating roller, and the movable sleeve always covers the key slot of the rotating roller; there are several movable rings, which are connected to the reciprocating screws by threads, and there are protrusions on the outer wall of the movable ring, which pass through the key slots on the rotating roller and are connected to the inner wall of the movable sleeve; there are several flip plates that are evenly fixed on the movable sleeve; there are several guide blocks on the flip plate, and the guide blocks are set as square edge blocks, and the edges of the guide blocks are located on one side of the moving direction of the flip plate; the cylinder is fixed on the side wall of the screening box, and the output end of the cylinder is connected to the outer wall of the sealing box.

2. The sand and gravel separation and flushing device for recycling a pipe jacking machine according to claim 1 is characterized in that The screening mechanism includes a filter plate, an adjustment plate, a support plate, a motor II, a screw, and a connecting plate; the filter plate is provided with several and installed in corresponding installation grooves; a guide groove II is provided at the bottom of the filter plate; the adjustment plate is installed in the guide groove II at the bottom of the filter plate; the support plate is fixed on the outer wall of the screening box, the motor II is fixed on the end of the support plate away from the screening box, and the two ends of the screw are respectively connected to the side wall of the screening box and the support plate through bearings; the connecting plate is fixed on one end of the adjustment plate and is connected to the screw through a thread.

3. The sand and gravel separation and flushing device for recycling a pipe jacking machine according to claim 1 is characterized in that The filter holes on the filter plates in the screening mechanism always keep decreasing from top to bottom.

4. The sand and gravel separation and flushing device for recycling a pipe jacking machine according to claim 1 is characterized in that The bottom of the screening box is equipped with a spring, a baffle and a guide column; the frame is provided with a movable groove, and several guide columns are evenly fixed on the bottom of the screening box; one end of the spring is fixed to the bottom of the screening box, and the other end passes through the guide column and is fixed to the top of the frame; the vibration motor is fixed to the top of the screening box; the baffle is located on one side of the spring, one end is fixed to the bottom of the screening box, and the other end is located in the movable groove of the frame.

5. The sand and gravel separation and flushing device for recycling a pipe jacking machine according to claim 1 is characterized in that The steps for using the sand and gravel separation and flushing device are as follows: Step 1: First, adjust the size of the screening mechanism according to the material conditions; Step 2: Then, during the jacking process of the slurry-water balanced pipe jacking machine, the sand and gravel mixed with mud and sand are pumped into the upper screening mechanism of the screening box through the mud pump, and the accumulated sand and gravel are moved to both sides of the screening box through the feeding mechanism; Step 3: The vibration motor drives the screening box to vibrate, thereby driving the sand and gravel to vibrate and screen, and move the sand and gravel to the discharge port; at the same time, clean water is sprayed to the sand and gravel being screened through the water inlet pipe and the flow equalizing pipe, and the material-digging mechanism digs and flips the larger stones in the upper screening mechanism, which can clean the sand and gravel in the upper screening mechanism; at the same time, the flipping mechanism stirs and flips the smaller sand and gravel in the middle and lower layers; Step 4: The cleaned sand and gravel are discharged through the discharge port, while the wastewater containing mud and impurities enters the wastewater collection box and is discharged through the drain port for subsequent treatment.

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