A cyclone type sand removal device

Abstract

The present invention belongs to the technical field of cyclone sand removal, and specifically is a cyclone sand removal device, comprising a sand removal box, a cyclone sand remover is arranged at the upper end of the sand removal box, a filter screen is arranged in the sand removal box, a secondary separation mechanism is arranged on one side of the sand removal box, the secondary separation mechanism comprises a shell, the shell is fixedly connected to the sand removal box, the lower end of the filter screen extends into a channel opened in one side of the shell, a transmission mechanism is arranged in the shell, a plurality of chain boxes are distributed around the transmission mechanism, a filter barrel rotatably installed in the chain box, a driven pipe fixedly connected to the bottom of the filter barrel, a first spring sleeved on the driven pipe, a movable plate movably sleeved on the driven pipe, two groups of spiral grooves are opened on the driven pipe, and particulate matter is dehydrated twice through the filter screen and the filter barrel to make the particulate matter drier, which not only reduces the cost and time of transportation, but also reduces the difficulty of handling solid sand particles in the later stage.

Description

Technical Field

[0001] The invention belongs to the technical field of cyclone type sand removal, in particular to a cyclone type sand removal device. Background Art

[0002] The exhaust gas generated by the production of photovoltaics and semiconductors usually uses combustion to remove harmful gases. The exhaust gas is burned in the reaction chamber of the reactor. Due to the presence of dust or particulate matter in the exhaust gas, the burned dust or particulate matter will fall into the water tank, causing the water in the water tank to be polluted. The polluted water enters the spray pipe with the water pump, causing the nozzle to be blocked. In order to avoid nozzle blockage, the dust or particulate matter in the water is generally removed through a cyclone sand removal device.

[0003] The patent with publication number CN218811142U discloses a sewage pretreatment system, including a fine screen dirt removal device and an internal inlet mesh screen dirt removal machine. The fine screen dirt removal device is connected to a sand settling and sand removal integrated machine. The sand settling and sand removal integrated machine includes a bracket, an inner cylinder, and an outer cylinder. The discharge port opened at the bottom of the outer cylinder is connected to a screw conveyor. The scheme forms a vortex of sewage by passing sewage into the sand settling and sand removal integrated machine, performs centrifugal sand removal, and settles at the bottom of the outer cylinder. The sewage flows into the overflow tank from the open port at the top of the inner cylinder and flows out from the outlet pipe. The solid sand particles at the bottom are discharged through the screw conveyor. Since a number of filter holes are provided on the spiral blades on the screw conveyor, the spiral blades can filter out the solid sand particles and sewage through the filter holes during the process of conveying solid sand particles. This not only improves the efficiency of sand discharge, but also makes the sand discharge less prone to clogging.

[0004] In the above scheme, the filter holes on the spiral blades can filter out most of the sewage in the solid sand particles. The solid sand particles after filtration are still moist, which increases the weight of the solid sand particles, which not only increases the transportation cost and time, but also increases the difficulty of later processing of the solid sand particles. For this reason, the present invention provides a cyclone sand removal device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a cyclone type sand removing device described in the present invention comprises a sand removing box, a cyclone type sand removing device is arranged at the upper end of the sand removing box, a filter screen is arranged in the sand removing box, a secondary separation mechanism is arranged on one side of the sand removing box, the secondary separation mechanism comprises a shell, the shell is fixedly connected to the sand removing box, the lower end of the filter screen extends into a channel opened in one side of the shell, a transmission mechanism is arranged in the shell, a plurality of chain boxes are distributed around the transmission mechanism, a filter barrel rotatably installed in the chain box, a driven pipe fixedly connected to the bottom of the filter barrel, a first spring sleeved on the driven pipe, a movable plate movably sleeved on the driven pipe, and two driven pipes are opened A set of spiral grooves, two sets of pins are arranged in the inner circle of the movable plate, the two sets of pins are respectively located in the two sets of spiral grooves, rollers are rotatably installed at both ends of the movable plate, a driving plate is fixedly installed in the shell, two sets of racks for pushing rollers are arranged on the driving plate, two sets of water boxes are symmetrically arranged on both sides of the shell, the transmission mechanism includes two sets of transmission shafts, the two sets of transmission shafts are rotatably installed in the shell, two sets of sprockets are fixedly installed on the transmission shafts, each set of chains meshes with two sets of sprockets, a number of chain boxes are distributed around the two sets of chains, and the chain boxes are fixedly connected to the chains, the secondary separation mechanism also includes a water pipe, the two sets of water boxes are connected to the water pipe, and the lower end of the water pipe extends into the sand removal box; The particles are dehydrated twice through the filter net and the filter barrel to make them drier, which not only reduces the cost and time of transportation, but also reduces the difficulty of later processing of solid sand particles.

[0007] Preferably, a vibration motor is provided above the filter screen, and the vibration motor is fixedly mounted on the inner wall of the sand removal box; The vibration of the vibration motor can accelerate the particles to roll down along the filter into the channel, preventing a large amount of particles from being retained on the filter.

[0008] Preferably, the driven tube includes a connecting tube, one end of which is fixedly connected to the bottom of the filter barrel, a rotating tube rotatably sleeved on the connecting tube, a ratchet fixedly sleeved on the other end of the connecting tube, four groups of ratchet claws distributed at equal angles on the outer ring of the ratchet, one end of the ratchet claw is clamped with the teeth of the ratchet, and the other end of the ratchet claw is rotatably sleeved on a fixing pin, which is fixedly installed in the rotating tube, a spiral groove is provided on the rotating tube, and the first spring and the movable plate are both sleeved on the rotating tube; The cooperation between the pawl and the ratchet makes the filter barrel rotate in only one direction. Under the action of inertia, the filter barrel will rotate faster and faster, increasing the centrifugal force of the filter barrel, separating the particles and water in the filter barrel more thoroughly, and further making the particles drier.

[0009] Preferably, the secondary separation mechanism further includes a pushing mechanism, which includes a movable shaft, which is installed in the connecting pipe, a second spring sleeved on the movable shaft, a pressure head fixedly connected to one end of the movable shaft, and the other end of the movable shaft passes through the bottom of the filter barrel and is fixedly connected to the push plate, the push plate is located in the filter barrel, and an inclined surface for pushing the pressure head is provided at the end of the driving plate, and a rubber scraper is fixedly installed in the shell, and the rubber scraper is used to scrape off solid particles on the push plate; The push plate and the filter barrel continue to move, and the rubber scraper scrapes off the particles attached to the end surface of the push plate until the pressure head is offset from the driving plate. Under the rebound force of the second spring, the push plate returns to the bottom of the filter barrel. Since the push plate pushes out the particles retained in the filter barrel, the separation efficiency of the filter barrel on particles is ensured.

[0010] The beneficial effects of the present invention are as follows: 1. The particles are dehydrated twice through the filter screen and the filter barrel to make them drier, which not only reduces the cost and time of transportation, but also reduces the difficulty of later processing of solid sand particles.

[0011] 2. The rotating tube drives the four sets of fixing pins together with the four sets of pawls to rotate together, and then the pawls resist the teeth of the ratchet wheel, so that the ratchet wheel, the connecting tube and the filter barrel rotate together, until the roller is staggered from the teeth on the rack, and the rotating tube and the four sets of pawls rotate back together. Since the pawls cannot resist the teeth of the ratchet wheel, the ratchet wheel, the connecting tube and the filter barrel will not rotate back. When the roller is squeezed by the teeth on the rack again, the filter barrel will be subjected to the rotational force again. Therefore, the cooperation between the pawls and the ratchet wheel makes the filter barrel rotate in only one direction. Under the action of inertia, the filter barrel will rotate faster and faster, increasing the centrifugal force of the filter barrel, so that the particles and water in the filter barrel are separated more thoroughly, and the particles are further dried.

[0012] 3. After the chain box is separated from between the two groups of water boxes, the filter barrel and the pushing mechanism continue to move with the chain box, and the upper port of the filter barrel will face downward, and a part of the particles will be directly poured out of the filter barrel and fall to the bottom of the shell. Then the pressure head on the pushing mechanism will be squeezed by the inclined surface, so that the pressure head drives the movable shaft together with the push plate to move toward the upper port of the filter barrel, and the pressure head compresses the second spring, and the moving push plate pushes out the particles retained in the filter barrel until the pressure head staggers the inclined surface. At this time, the end face of the push plate is flush with the upper port of the filter barrel. As the push plate and the filter barrel continue to move, the rubber scraper scrapes off the particles attached to the end face of the push plate until the pressure head staggers the driving plate. Under the rebound force of the second spring, the push plate returns to the bottom of the filter barrel. Since the push plate pushes out the particles retained in the filter barrel, the separation efficiency of the filter barrel for particles is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the combination of the filter screen and the cross-sectional secondary separation mechanism of the present invention.

[0017] Figure 4 The present invention is a schematic diagram of a chain box, a filter barrel, a driven pipe, a first spring, a movable plate, a spiral groove, and a roller assembly cut apart.

[0018] Figure 5 It is a schematic diagram of the chain box, driven tube and spiral groove combination of the movable plate of the present invention.

[0019] Figure 6 It is a cross-sectional schematic diagram of the chain box, filter barrel, driven pipe and pusher mechanism of the present invention.

[0020] Figure 7 The present invention is a schematic diagram of the cutaway shell, drive plate, inclined surface, rubber scraper, chain, chain box, filter barrel, and pressure head assembly.

[0021] In the figure: 1, sand removal box; 2, cyclone sand remover; 3, filter screen; 4, vibration motor; 5, secondary separation mechanism; 501, housing; 5011, channel; 5012, drive plate; 5013, rack; 5014, inclined plane; 5015, rubber scraper; 502, transmission mechanism; 21, transmission shaft; 22, sprocket; 23, chain; 503, chain box; 504, filter barrel; 505, Driven tube; 506, first spring; 507, movable plate; 71, pin shaft; 508, spiral groove; 509, water box; 510, water pipe; 511, roller; 512, pushing mechanism; 5071, connecting pipe; 5072, rotating tube; 5073, ratchet; 5074, pawl; 5075, fixing pin; 51, movable shaft; 52, second spring; 53, pressure head; 54, pushing plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0023] like Figures 1 to 4As shown, a cyclone type sand removing device described in an embodiment of the present invention comprises a sand removing box 1, a cyclone type sand removing device 2 is arranged at the upper end of the sand removing box 1, a filter screen 3 is arranged in the sand removing box 1, a secondary separation mechanism 5 is arranged on one side of the sand removing box 1, and the secondary separation mechanism 5 comprises a shell 501, the shell 501 is fixedly connected to the sand removing box 1, the lower end of the filter screen 3 extends into a channel 5011 opened in one side of the shell 501, a conveying mechanism 502 is arranged in the shell 501, a plurality of groups of chain boxes 503 are distributed around the conveying mechanism 502, a filter barrel 504 rotatably installed in the chain box 503, a driven pipe 505 fixedly connected to the bottom of the filter barrel 504, a first spring 506 sleeved on the driven pipe 505, and a movable plate 507 movably sleeved on the driven pipe 505, two groups of spiral grooves 508 are opened on the driven pipe 505, and a movable plate 507 is arranged in the inner circle of the movable plate 507 There are two groups of pin shafts 71, which are respectively located in two groups of spiral grooves 508, rollers 511 are rotatably installed at both ends of the movable plate 507, a driving plate 5012 is fixedly installed in the shell 501, and two groups of racks 5013 for pushing the rollers 511 are arranged on the driving plate 5012, and two groups of water boxes 509 are symmetrically arranged on both sides of the shell 501, and the transmission mechanism 502 includes two groups of transmission shafts 21, which are rotatably installed in the shell 501, and two groups of sprockets 22 are fixedly installed on the transmission shafts 21, and each group of chains 23 engages with two groups of sprockets 22, and a number of groups of chain boxes 503 are distributed around the two groups of chains 23, and the chain boxes 503 are fixedly connected to the chains 23, and the secondary separation mechanism 5 also includes a water pipe 510, and the two groups of water boxes 509 are connected to the water pipe 510, and the lower end of the water pipe 510 extends into the sand removal box 1.

[0024] Specifically, the cyclone desander 2 is a prior art. A water inlet is arranged on one side of the cyclone desander 2, and a water outlet and a particle discharge outlet are arranged at the upper and lower ends respectively. The fluid is rotated upward along the axis of the cylinder so that the solid particles in the water flow fall along the wall of the conical cylinder under the action of the centrifugal force of the fluid inertia and its own gravity, thereby separating the particles from the water. The outer surface of the chain box 503 is covered with a rubber layer. The meshes on the filter screen 3 and the filter barrel 504 are smaller than the particles in the sewage. When it is necessary to treat the sewage generated by the production of photovoltaics and semiconductors, the sewage is injected from the water inlet on one side of the cyclone desander 2, and the sewage enters the cyclone desander After entering the sand remover 2, the particles in the sewage will be separated from the water, and then the particles will be discharged from the lower port of the cyclone sand remover 2 into the sand removal box 1, and will fall on the filter screen 3, and the water will be discharged through the upper port of the cyclone sand remover 2, and the separated particles will be filtered through the filter screen 3, so that the water mixed with the particles will fall to the bottom of the sand removal box 1 through the filter screen 3, and then the particles will roll along the inclined filter screen 3 into the channel 5011, at this time, a group of transmission shafts 21 are driven by a motor to rotate, the transmission shafts 21 drive two groups of sprockets 22 to rotate, and the sprockets 22 drive two groups of chains 23 and several groups of chain boxes 503 to do circular motion, and the attached below Figure 3 The direction indicated by the middle arrow is the direction of circular motion, and then the particles rolling into the channel 5011 will fall onto the chain box 503 in circular motion, and several groups of chain boxes 503 will pass through the channel 5011 in sequence, and the particles will fall into the filter barrel 504 on the chain box 503. When the chain box 503 staggers the channel 5011 and moves between the two groups of water boxes 509, the two groups of rollers 511 under the chain box 503 will be squeezed by the teeth on the two groups of racks 5013, so that the rollers 511 drive the movable plate 507 to move upward along the driven tube 505, and the movable plate 507 compresses the first spring 506, and at the same time, the movable plate 507 drives the two groups of pins 71 to slide along the two groups of spiral grooves 508 respectively, so that the driven tube 505 rotates together with the filter barrel 504 until the rollers 511 stagger the teeth on the rack 5013. Under the action of the rebound force of the first spring 506, the filter barrel 504 rotates back. Since there are multiple sets of teeth on the rack 5013, the filter barrel 504 will continue to rotate back and forth. The rotation generates centrifugal force, so that the water in the filter barrel 504 is thrown out, and then the water flows into the water box 509 through the chain box 503, and flows back to the sand removal box 1 through the water pipe 510, so as to realize the secondary separation of water and particulate matter. When the chain box 503 is separated from between the two sets of water boxes 509, the particulate matter in the filter barrel 504 will be poured out and fall to the bottom of the shell 501. The particulate matter is discharged through the through hole at the bottom of the shell 501, and the above operation is repeated in a cycle. Compared with the prior art, the particulate matter is dehydrated twice by the filter net 3 and the filter barrel 504, so that the particulate matter is drier, which not only reduces the cost and time of transportation, but also reduces the difficulty of solid sand treatment in the later stage.

[0025] Furthermore, a vibration motor 4 is arranged above the filter screen 3 , and the vibration motor 4 is fixedly mounted on the inner wall of the sand removal box 1 .

[0026] Specifically, when the filter screen 3 is filtering particulate matter, the vibration motor 4 is started, and the vibration motor 4 causes the filter screen 3 and the sand removal box 1 to vibrate. The vibration can accelerate the particulate matter to roll along the filter screen 3 into the channel 5011, thereby preventing a large amount of particulate matter from being retained on the filter screen 3.

[0027] like Figure 5As shown, the driven tube 505 includes a connecting tube 5071, one end of the connecting tube 5071 is fixedly connected to the bottom of the filter barrel 504, a screw-on tube 5072 rotatably mounted on the connecting tube 5071, a ratchet 5073 fixedly mounted on the other end of the connecting tube 5071, four groups of pawls 5074 distributed at equal angles on the outer ring of the ratchet 5073, one end of the pawl 5074 is clamped on the teeth of the ratchet 5073, and the other end of the pawl 5074 is rotatably mounted on the fixing pin 5075, the fixing pin 5075 is fixedly installed in the screw-on tube 5072, a spiral groove 508 is opened on the screw-on tube 5072, and the first spring 506 and the movable plate 507 are both mounted on the screw-on tube 5072.

[0028] Specifically, the ratchet 5073 is made of magnet material, and the ratchet 5073 has a certain adsorption force on the pawl 5074. When the movable plate 507 drives the two groups of pins 71 to slide along the two groups of spiral grooves 508 respectively, the rotating tube 5072 on the driven tube 505 will rotate first, and at the same time, the rotating tube 5072 drives the four groups of fixed pins 5075 to rotate together with the four groups of pawls 5074, and then the pawls 5074 resist the teeth of the ratchet 5073, so that the ratchet 5073 rotates together with the connecting tube 5071 and the filter barrel 504 until the roller 511 staggers the teeth on the rack 5013, and the rotating tube 5072 rotates together with the four groups of fixed pins 5075 and the four groups of pawls 5074. The pawls 5074 of the group rotate back together. Since the pawls 5074 cannot resist the teeth of the ratchet 5073, the ratchet 5073 together with the connecting pipe 5071 and the filter barrel 504 will not rotate back. When the roller 511 is squeezed by the teeth on the rack 5013 again, the filter barrel 504 will be subjected to the rotational force again. Therefore, the cooperation between the pawls 5074 and the ratchet 5073 makes the filter barrel 504 rotate in only one direction. Under the action of inertia, the filter barrel 504 will rotate faster and faster, thereby increasing the centrifugal force of the filter barrel 504, making the particulate matter and water in the filter barrel 504 separated more thoroughly, and further making the particulate matter drier. Embodiment 2

[0029] like Figure 6 and Figure 7 As shown, compared with Example 1, another embodiment of the present invention is: the secondary separation mechanism 5 also includes a pushing mechanism 512, the pushing mechanism 512 includes a movable shaft 51, the movable shaft 51 is installed in the connecting pipe 5071, a second spring 52 is sleeved on the movable shaft 51, and a pressure head 53 is fixedly connected to one end of the movable shaft 51. The other end of the movable shaft 51 passes through the bottom of the filter barrel 504 and is fixedly connected to the push plate 54. The push plate 54 is located in the filter barrel 504, and an inclined surface 5014 for pushing the pressure head 53 is provided at the end of the driving plate 5012. A rubber scraper 5015 is fixedly installed in the shell 501, and the rubber scraper 5015 is used to scrape off solid particles on the push plate 54.

[0030] Specifically, in the initial state, the push plate 54 is located at the bottom of the filter barrel 504. Under the action of centrifugal force, the particles will cling to the inner wall of the filter barrel 504, resulting in the particles being unable to be completely poured out of the filter barrel 504, affecting the subsequent separation efficiency of the filter barrel 504 for the particles. When the chain box 503 is separated from between the two sets of water boxes 509, the filter barrel 504 and the pushing mechanism 512 continue to move with the chain box 503, and the upper port of the filter barrel 504 will face downward, so that part of the particles are directly poured out of the filter barrel 504 and fall to the bottom of the shell 501. Then the pressure head 53 on the pushing mechanism 512 will be squeezed by the inclined surface 5014, so that the pressure head 53 drives the movable shaft 51 together with the push plate 512, so that the filter barrel 504 and the push plate 512 can be directly poured out of the filter barrel 504. 4 moves toward the upper end of the filter barrel 504, and the pressure-bearing head 53 compresses the second spring 52, and the moving push plate 54 pushes out the particles retained in the filter barrel 504 until the pressure-bearing head 53 staggers the inclined surface 5014. At this time, the end surface of the push plate 54 is flush with the upper end of the filter barrel 504. As the push plate 54 and the filter barrel 504 continue to move, the rubber scraper 5015 scrapes off the particles attached to the end surface of the push plate 54 until the pressure-bearing head 53 staggers the driving plate 5012. Under the rebound force of the second spring 52, the push plate 54 returns to the bottom of the filter barrel 504. Since the push plate 54 pushes out the particles retained in the filter barrel 504, the separation efficiency of the filter barrel 504 on the particles is ensured.

[0031] Working principle: Sewage is injected from the water inlet on one side of the cyclone desander 2. After the sewage enters the cyclone desander 2, the particles in the sewage will be separated from the water, and then the particles will be discharged from the lower port of the cyclone desander 2 into the desander box 1, and will fall on the filter 3. The water will be discharged through the upper port of the cyclone desander 2, and the separated particles will be filtered through the filter 3, so that the water mixed with the particles will fall to the bottom of the desander box 1 through the filter 3, and then the particles will roll along the inclined filter 3 into the channel 5011. At the same time, a group of transmission shafts 21 are driven by a motor to rotate, and the transmission shafts 21 drive two groups of sprockets 22 to rotate, and the sprockets 22 drive two groups of chains 23 and a plurality of groups of chain boxes 503 to make circular motions, and then the particles rolling into the channel 5011 will fall on the chain boxes 503 in circular motion, and the plurality of groups of chain boxes 503 will pass through the channel 5011 in sequence, and the particles will fall into the filter barrel 504 on the chain box 503. When the chain box 503 staggers the channel 5011 and moves between the two groups of water boxes 509, the chain box 503 The two groups of rollers 511 below the box 503 are squeezed by the teeth on the two groups of racks 5013, so that the rollers 511 drive the movable plate 507 to move upward along the driven tube 505, and the movable plate 507 compresses the first spring 506. At the same time, the movable plate 507 drives the two groups of pins 71 to slide along the two groups of spiral grooves 508 respectively, so that the driven tube 505 and the filter barrel 504 rotate until the rollers 511 stagger the teeth on the rack 5013. Under the rebound force of the first spring 506, the filter barrel 504 rotates back. There are multiple sets of teeth on 5013, so the filter barrel 504 will rotate back and forth continuously, and the rotation generates centrifugal force, so that the water in the filter barrel 504 is thrown out, and then the water flows into the water box 509 through the chain box 503, and flows back to the sand removal box 1 through the water pipe 510, so as to achieve the secondary separation of water and particles. When the chain box 503 is separated from the two sets of water boxes 509, the particles in the filter barrel 504 will be poured out and fall to the bottom of the shell 501, and the particles will be discharged through the through hole at the bottom of the shell 501, and the above operation will be repeated in a cycle; When the movable plate 507 drives the two groups of pins 71 to slide along the two groups of spiral grooves 508, the rotating tube 5072 on the driven tube 505 will rotate first, and at the same time, the rotating tube 5072 drives the four groups of fixed pins 5075 and the four groups of ratchet claws 5074 to rotate together, and then the ratchet claws 5074 press against the teeth of the ratchet wheel 5073, so that the ratchet wheel 5073, the connecting tube 5071 and the filter barrel 504 rotate together, until the roller 511 staggers the teeth on the rack 5013, and the rotating tube 5072 rotates. 72 together with the four groups of ratchet pawls 5074 rotate back, because the ratchet pawls 5074 cannot resist the teeth of the ratchet wheel 5073, the ratchet wheel 5073 together with the connecting pipe 5071 and the filter barrel 504 will not rotate back, when the roller 511 is squeezed by the teeth on the rack 5013 again, the filter barrel 504 will be subjected to the rotation force again, so the cooperation between the ratchet pawls 5074 and the ratchet wheel 5073 makes the filter barrel 504 rotate in only one direction, and under the action of inertia, the filter barrel 504 will rotate faster and faster; When the chain box 503 is separated from the two water boxes 509, the filter barrel 504 and the pushing mechanism 512 continue to move with the chain box 503, and the upper port of the filter barrel 504 will face downward, and a part of the particles will be directly poured out of the filter barrel 504 and fall to the bottom of the shell 501. Then, the pressure head 53 on the pushing mechanism 512 will be squeezed by the inclined surface 5014, so that the pressure head 53 drives the movable shaft 51 together with the pushing plate 54 to move toward the upper port of the filter barrel 504, and the pressure head 53 presses The second spring 52 is compressed, and the moving push plate 54 pushes out the particles retained in the filter barrel 504 until the pressure head 53 is offset from the inclined surface 5014. At this time, the end face of the push plate 54 is flush with the upper end of the filter barrel 504. As the push plate 54 and the filter barrel 504 continue to move, the rubber scraper 5015 scrapes off the particles attached to the end face of the push plate 54 until the pressure head 53 is offset from the driving plate 5012. Under the rebound force of the second spring 52, the push plate 54 returns to the bottom of the filter barrel 504.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cyclone type sand removal device, comprising a sand removal box (1), characterized in that: A cyclone desander (2) is arranged at the upper end of the desander box (1), a filter screen (3) is arranged inside the desander box (1), and a secondary separation mechanism (5) is arranged on one side of the desander box (1); The secondary separation mechanism (5) comprises a shell (501), the shell (501) is fixedly connected to the sand removal box (1), and the lower end of the filter screen (3) extends into a channel (5011) opened on one side of the shell (501); A conveying mechanism (502) is disposed in the housing (501), and a plurality of chain boxes (503) are distributed around the conveying mechanism (502); A filter barrel (504) is rotatably mounted in the chain box (503); a driven tube (505) is fixedly connected to the bottom of the filter barrel (504), and a first spring (506) is sleeved on the driven tube (505); A movable plate (507) movably sleeved on the driven tube (505), the driven tube (505) being provided with two groups of spiral grooves (508), two groups of pins (71) being provided in the inner ring of the movable plate (507), the two groups of pins (71) being respectively located in the two groups of spiral grooves (508), rollers (511) being rotatably mounted at both ends of the movable plate (507), a driving plate (5012) being fixedly mounted in the housing (501), and two groups of racks (5013) being provided on the driving plate (5012) for pushing the rollers (511); Two groups of water boxes (509) are symmetrically arranged on both sides of the housing (501).

2. A cyclone type sand removal device according to claim 1, characterized in that: The transmission mechanism (502) comprises: Two sets of transmission shafts (21), the two sets of transmission shafts (21) being rotatably mounted in the housing (501); Two sets of sprockets (22) are fixedly mounted on the transmission shaft (21); Two sets of chains (23), each set of the chains (23) meshing with two sets of the sprockets (22); A plurality of groups of chain boxes (503) are distributed around the two groups of chains (23), and the chain boxes (503) are fixedly connected to the chains (23).

3. A cyclone type sand removal device according to claim 2, characterized in that: The secondary separation mechanism (5) further comprises a water pipe (510), the two groups of water boxes (509) are connected to the water pipe (510), and the lower end of the water pipe (510) extends into the sand removal box (1).

4. A cyclone type sand removal device according to claim 3, characterized in that: A vibration motor (4) is arranged above the filter screen (3), and the vibration motor (4) is fixedly mounted on the inner wall of the sand removal box (1).

5. A cyclone type sand removal device according to claim 4, characterized in that: The driven tube (505) comprises: A connecting pipe (5071), one end of which is fixedly connected to the bottom of the filter barrel (504); Rotating the rotating tube (5072) sleeved on the connecting tube (5071); A ratchet wheel (5073) fixedly mounted on the other end of the connecting tube (5071); Four groups of ratchet pawls (5074) are distributed at equal angles on the outer ring of the ratchet wheel (5073).

6. A cyclone type sand removal device according to claim 5, characterized in that: One end of the pawl (5074) is engaged with the teeth of the ratchet wheel (5073), and the other end of the pawl (5074) is rotatably sleeved on a fixing pin (5075), and the fixing pin (5075) is fixedly installed in the rotating tube (5072).

7. A cyclone type sand removal device according to claim 6, characterized in that: The spiral groove (508) is formed on the screw-on tube (5072), and the first spring (506) and the movable plate (507) are both mounted on the screw-on tube (5072).

8. A cyclone type sand removal device according to claim 7, characterized in that: The secondary separation mechanism (5) further comprises a material pushing mechanism (512), wherein the material pushing mechanism (512) comprises: A movable shaft (51), the movable shaft (51) being installed in the connecting tube (5071); A second spring (52) sleeved on the movable shaft (51); A pressure-bearing head (53) fixedly connected to one end of the movable shaft (51); The other end of the movable shaft (51) passes through the bottom of the filter barrel (504) and is fixedly connected to a push plate (54); the push plate (54) is located inside the filter barrel (504).

9. A cyclone type sand removal device according to claim 8, characterized in that: The end of the driving plate (5012) is provided with an inclined surface (5014) for pushing the pressure head (53).

10. A cyclone type sand removal device according to claim 9, characterized in that: A rubber scraper (5015) is fixedly installed in the housing (501), and the rubber scraper (5015) is used to scrape off solid particles on the push plate (54).

Images