A high-efficiency and energy-saving impeller sand washing machine

Abstract

The present invention belongs to the technical field of particle washing, and in particular, relates to an efficient and energy-saving impeller sand washing machine, including a sand washing trough, the front and rear sides of the sand washing trough are fixedly connected with mounting frames, the same mounting shaft is fixedly connected between the two mounting frames, the outer wall of the mounting shaft is rotatably connected to two mounting sleeves through bearings, and the front side wall of the sand washing trough is connected to a reduction motor. The present invention can automatically replace the damaged sieve plate when the sieve plate on the surface of the impeller sand washing machine is worn, affecting the quality of sand and gravel aggregates, without the need for operators to suspend the sand washing machine to replace the sieve plate, thereby ensuring the working efficiency of the sand washing machine, and can automatically collect, screen and transport the fallen sand and gravel aggregates when the sieve plate is worn, causing a large amount of sand and gravel aggregates to fall from the top of the sand washing trough again, without the need for the sand washing machine to screen the fallen sand and gravel aggregates again, thereby reducing the energy consumption of the sand washing machine.

Description

Technical Field

[0001] The invention belongs to the technical field of particle washing, and in particular relates to a high-efficiency and energy-saving impeller sand washing machine. Background Art

[0002] Sand washing machine, also known as stone washing machine, is mainly used to remove impurities (such as dust) from sand products. Because water washing method is mostly used, it is called sand washing machine. It mainly removes impurities and soil on the surface of sand and stone through the impact and stirring of water flow, so that the sand and stone can reach higher quality standards.

[0003] For example, a high-efficiency and energy-saving impeller sand washing machine proposed in the authorization announcement number CN213102667U points out the importance of sand washing machines in the production process of sand and gravel aggregates.

[0004] When the existing impeller sand washing machine is in use, the material enters the sand washing trough of the sand washing machine from the feed trough, tumbles under the drive of the impeller, and grinds each other to remove impurities covering the surface of the sand and gravel, and at the same time destroys the water vapor layer covering the sand particles to facilitate dehydration. At the same time, water is added to form a strong water flow, and impurities and foreign objects with small specific gravity are promptly dropped from the sieve plate on the surface of the impeller back into the sand washing trough, and discharged from the overflow port to complete the cleaning effect. The clean sand and gravel are taken away by the blades and finally poured into the discharge trough from the rotating impeller to complete the sand washing process;

[0005] Due to the aging of the sieve plate on the surface of the impeller due to long-term use, and the hardness of the sand and gravel materials is relatively high, when the impeller drives the sieve plate to rotate, the harder material has a greater impact force on the sieve plate, which can easily cause the sieve plate to wear. When the sieve plate is worn, it cannot effectively screen out sand that meets the requirements, resulting in inconsistent sand particle size, affecting the quality of sand and gravel aggregates. The operator needs to stop the sand washing machine in time and replace the damaged sieve plate, which reduces the working efficiency of the sand washing machine.

[0006] Therefore, a high-efficiency and energy-saving impeller sand washing machine is proposed to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a high-efficiency and energy-saving impeller sand washing machine in view of the above problems.

[0008] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an efficient and energy-saving impeller sand washing machine, comprising a sand washing trough, wherein the front and rear sides of the sand washing trough are fixedly connected with mounting frames, the two mounting frames are fixedly connected with the same mounting shaft, the outer wall of the mounting shaft is rotatably connected with two mounting sleeves through a bearing, the front side wall of the sand washing trough is connected with a reduction motor, the output end of the reduction motor is transmission-connected with the front mounting sleeve through a toothed belt assembly, the outer walls of the two mounting sleeves are fixedly connected with a plurality of support frames, the ends of the plurality of support frames away from the mounting sleeves are fixedly connected with the same mounting ring, the outer wall of the mounting ring is fixedly connected with a plurality of buckets, the side wall of the mounting ring is fixedly connected with a plurality of replaceable filter assemblies, the upper side wall of the mounting shaft is connected with a filter screen through an inductive support assembly, the inductive support assembly is electrically connected to a plurality of replaceable filter assemblies one-to-one through a plurality of positioning assemblies, the lower side wall of the filter screen is fixedly connected with a vibration motor, the outer wall of the mounting shaft is provided with a position marking assembly, and the inductive support assembly is electrically connected to the position marking assembly through a PLC controller.

[0009] Preferably, the replaceable filter assembly includes two mounting frames and two sieve plates, the inner wall of the mounting ring is provided with a plurality of placement grooves, the mounting frame is fixedly connected in the placement grooves, the sieve plate is located in the mounting frame, and mounting rods are fixedly connected on the left and right sides of the sieve plate, the rear side wall of the mounting frame is fixedly connected with a micro motor, the output end of the micro motor is fixedly connected to the rear mounting rod, the side wall of the mounting ring is provided with a plurality of sieve openings, two permanent magnet blocks are symmetrically fixedly connected on one side of the sieve plate close to the sieve openings, the inner wall of the mounting ring is provided with a plurality of grooves, and electromagnetic blocks are fixedly connected in the grooves.

[0010] Preferably, the positioning assembly includes a cylinder, the rear inner wall of the cylinder is rotatably connected to a vertical rod, the rear wall of the vertical rod is fixedly connected to a conductive block, the rear inner wall of the cylinder is fixedly connected to an arc-shaped conductive plate, the arc-shaped conductive plate is electrically connected to the electromagnetic block and the micro motor, and the conductive block is electrically connected to the PLC controller.

[0011] Preferably, the induction support assembly includes two support tubes and two support frames, the two support tubes are fixedly connected to the upper side wall of the mounting shaft, the support frame is inserted in the support tube, the side wall between the support frame and the support tube is fixedly connected with the same spring, the lower end of the support frame on the right side is fixedly connected with a metal block, the metal block is electrically connected to an external power supply, the right inner wall of the support tube on the right side is inlaid with a metal plate, the upper side wall of the mounting shaft is fixedly connected with an air pump, the upper side wall of the mounting shaft is fixedly connected with a jet box through a bracket, the air outlet of the air pump is connected to the jet box, the upper side wall of the mounting shaft is fixedly connected with an induction tube through a bracket, the induction The cylinder and the air outlet end of the air pump are connected by a common air inlet pipe, a control valve is provided in the air inlet pipe, the metal plate is electrically connected to the control valve through a PLC controller, a support ring is fixedly connected to the inner wall of the sensing cylinder, a piston plate is placed above the support ring, a microporous plate is inlaid on the side wall of the sensing cylinder, an air pressure hole is opened on the side wall of the sensing cylinder, an electric contact frame is fixedly connected to the upper side wall of the piston plate, the electric contact frame is electrically connected to an external power supply, an electric contact plate is inlaid on the right inner wall of the sensing cylinder, the electric contact plate is electrically connected to the PLC controller, a buzzer is fixedly connected to the right wall of the sand washing tank, and the electric contact plate is electrically connected to the buzzer through the PLC controller.

[0012] Preferably, the position marking assembly includes a rotating ring and a positioning spotlight, the rotating sleeve of the rotating ring is arranged on the outer wall of the mounting shaft, the positioning spotlight is fixedly connected to the upper side wall of the rotating ring, the lower side wall of the rotating ring is fixedly connected with a counterweight seat, the side wall of the mounting sleeve located on the right side is fixedly connected with a micro electric push rod, the metal plate is electrically connected to the positioning spotlight and the micro electric push rod through a PLC controller, the output end of the micro electric push rod is fixedly connected to a limiting column, and the side wall of the rotating ring is provided with a plurality of limiting grooves that match the limiting columns.

[0013] Preferably, a conveying cavity is opened at the front end of the mounting shaft, a partition is fixedly connected to the inner wall of the conveying cavity, a driving motor is fixedly connected to the rear side wall of the partition, the output end of the driving motor extends out of the partition and is fixedly connected to a spiral feeding shaft, and the upper side wall of the conveying cavity is connected to a feed hopper, and the upper side wall of the feed hopper is located at the left end of the filter screen, and the left end of the filter screen is tilted downward.

[0014] Preferably, the inner wall of the bucket is rotatably connected to a stirring shaft, the outer wall of the stirring shaft is fixedly connected to a plurality of stirring plates, a water spray pipe is provided above the sand washing tank, and the pipe wall of the water spray pipe is connected to a plurality of nozzles.

[0015] Preferably, the rod wall fixing sleeve of the support frame is provided with a protective cover, and the protective cover is located above the support tube.

[0016] Compared with the existing technology, the advantages of a high-efficiency and energy-saving impeller sand washing machine are:

[0017] 1. By setting up replaceable filter components, induction support components and positioning components, when the screen plate on the surface of the impeller sand washing machine is worn and affects the quality of sand and gravel aggregates, the damaged screen plate can be automatically replaced. The operator does not need to stop the sand washing machine to replace the screen plate, thus ensuring the working efficiency of the sand washing machine.

[0018] 2. Through the set conveying chamber, partition, driving motor, spiral conveying shaft, feed hopper and filter screen, when the screen plate is worn and causes a large amount of sand and gravel aggregates to fall from the top of the sand washing trough again, the fallen sand and gravel aggregates can be automatically collected, screened and conveyed out. There is no need for the sand washing machine to re-screen the fallen sand and gravel aggregates, reducing the energy consumption of the sand washing machine.

[0019] 3. By setting up the position marking component, when the screen plate on the surface of the sand washing machine is damaged, the damaged area of ​​the screen plate can be marked when the damaged screen plate is replaced, so that the operator can quickly find the damaged screen plate for replacement after the sand washing machine stops working, thereby improving the convenience of the operator's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0021] Figure 2 yes Figure 1 Right view of;

[0022] Figure 3 It is a structural schematic diagram of a bucket in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0023] Figure 4 It is a structural schematic diagram of a replaceable filter assembly in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0024] Figure 5 It is a structural schematic diagram of an induction support assembly in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of a conveying chamber in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0026] Figure 7 It is a structural schematic diagram of a position marking component in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0027] Figure 8 It is a structural schematic diagram of a positioning component in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0028] Fig. 9 It is a schematic diagram of the positional relationship between an air pump and an air jet box in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0029] Fig.10 It is a schematic diagram of the internal structure of an induction tube in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0030] Fig.11 It is a right view of an installation frame in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention;

[0031] Fig.12 It is a top view of a filter screen in a high-efficiency and energy-saving impeller sand washing machine provided by the present invention.

[0032] In the figure: 1 sand washing tank, 2 mounting frame, 3 mounting shaft, 4 mounting sleeve, 5 reduction motor, 6 support frame, 7 mounting ring, 8 bucket, 9 filter screen, 10 vibration motor, 11 replaceable filter assembly, 111 mounting frame, 112 sieve plate, 12 placement slot, 13 mounting rod, 14 micro motor, 15 sieve mouth, 16 permanent magnet block, 17 electromagnetic block, 18 positioning assembly, 181 cylinder, 182 vertical rod, 19 conductive block, 20 arc conductive plate, 21 induction support assembly, 211 support cylinder, 212 support frame, 22 metal block, 23 metal plate, 24 air pump, 25 jet box, 26 induction cylinder, 27 intake pipe, 28 control valve, 29 support ring, 30 piston plate, 31 microporous plate, 32 electric contact frame, 33 electric contact plate, 34 position marking component, 341 rotating ring, 342 positioning spotlight, 35 counterweight seat, 36 micro electric push rod, 37 limit column, 38 conveying cavity, 39 partition, 40 drive motor, 41 spiral feed shaft, 42 feed hopper, 43 stirring shaft, 44 stirring plate, 45 water spray pipe, 46 nozzle, 47 protective cover. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] like Figure 1-Figure 12As shown, a high-efficiency and energy-saving impeller sand washing machine comprises a sand washing trough 1, the front and rear sides of the sand washing trough 1 are fixedly connected with mounting frames 2, the two mounting frames 2 are fixedly connected with the same mounting shaft 3, the outer wall of the mounting shaft 3 is rotatably connected with two mounting sleeves 4 through bearings, the front side wall of the sand washing trough 1 is connected with a reduction motor 5, the output end of the reduction motor 5 is transmission-connected with the front mounting sleeve 4 through a toothed belt assembly, the outer walls of the two mounting sleeves 4 are fixedly connected with a plurality of support frames 6, the ends of the plurality of support frames 6 away from the mounting sleeve 4 are fixedly connected with the same mounting ring 7, the outer wall of the mounting ring 7 is fixedly connected with a plurality of buckets 8, the side wall of the mounting ring 7 is fixedly connected with a plurality of replaceable filter assemblies 11, the upper side wall of the mounting shaft 3 is connected with a filter screen 9 through an inductive support assembly 21, the inductive support assembly 21 is electrically connected to the plurality of replaceable filter assemblies 11 one by one through a plurality of positioning assemblies 18, the lower side wall of the filter screen 9 is fixedly connected with a vibration motor 10, the outer wall of the mounting shaft 3 is provided with a position marking assembly 34, and the inductive support assembly 21 is electrically connected to the position marking assembly 34 through a PLC controller.

[0035] The replaceable filter assembly 11 includes two mounting frames 111 and two sieve plates 112. The inner wall of the mounting ring 7 is provided with a plurality of placement grooves 12. The mounting frame 111 is fixedly connected in the placement grooves 12. The sieve plate 112 is located in the mounting frame 111, and the left and right sides of the sieve plate 112 are fixedly connected with mounting rods 13. The rear side wall of the mounting frame 111 is fixedly connected with a micro motor 14. The output end of the micro motor 14 is fixedly connected to the rear mounting rod 13. The side wall of the mounting ring 7 is provided with a plurality of sieve openings 15. Two permanent magnet blocks 16 are symmetrically fixedly connected to one side of the sieve plate 112 near the sieve openings 15. The inner wall of the mounting ring 7 is provided with a plurality of grooves, and an electromagnetic block 17 is fixedly connected in the groove. The damaged sieve plate 112 can be automatically replaced without the operator having to pause the sand washing machine to replace the sieve plate 112, thereby ensuring the working efficiency of the sand washing machine.

[0036] The positioning assembly 18 includes a cylinder 181, the rear inner wall of the cylinder 181 is rotatably connected to a vertical rod 182, the rear wall of the vertical rod 182 is fixedly connected to a conductive block 19, the rear inner wall of the cylinder 181 is fixedly connected to an arc-shaped conductive plate 20, the arc-shaped conductive plate 20 is electrically connected to the electromagnetic block 17 and the micro motor 14, and the conductive block 19 is electrically connected to the PLC controller, so as to locate the damaged position of the screen plate 112.

[0037] The induction support assembly 21 includes two support cylinders 211 and two support frames 212. The two support cylinders 211 are fixedly connected to the upper side wall of the installation shaft 3. The support frame 212 is inserted into the support cylinder 211. The side wall between the support frame 212 and the support cylinder 211 is fixedly connected with the same spring. The lower end of the right support frame 212 is fixedly connected with a metal block 22. The metal block 22 is electrically connected to an external power supply. The right inner wall of the right support cylinder 211 is inlaid with a metal plate 23. The upper side wall of the installation shaft 3 is fixedly connected with an air pump 24. The upper side wall of the installation shaft 3 is fixedly connected with a jet box 25 through a bracket. The air outlet of the air pump 24 is connected to the jet box 25. The upper side wall of the installation shaft 3 is fixedly connected with an induction cylinder 26 through a bracket. The induction cylinder 26 and the air pump 2 The air outlet ends of the induction tube 4 are connected with the same air inlet pipe 27, a control valve 28 is arranged in the air inlet pipe 27, the metal plate 23 is electrically connected to the control valve 28 through the PLC controller, a support ring 29 is fixedly connected to the inner wall of the induction tube 26, a piston plate 30 is placed above the support ring 29, a microporous plate 31 is inlaid on the side wall of the induction tube 26, an air pressure hole is opened on the side wall of the induction tube 26, an electric contact frame 32 is fixedly connected to the upper side wall of the piston plate 30, the electric contact frame 32 is electrically connected to an external power supply, an electric contact plate 33 is inlaid on the right inner wall of the induction tube 26, the electric contact plate 33 is electrically connected to the PLC controller, a buzzer is fixedly connected to the right wall of the sand washing tank 1, the electric contact plate 33 is electrically connected to the buzzer through the PLC controller, and whether the sieve plate 112 is damaged can be detected.

[0038] The position marking assembly 34 includes a rotating ring 341 and a positioning spotlight 342. The rotating ring 341 is rotatably sleeved on the outer wall of the mounting shaft 3. The positioning spotlight 342 is fixedly connected to the upper side wall of the rotating ring 341. The lower side wall of the rotating ring 341 is fixedly connected to a counterweight seat 35. The side wall of the right mounting sleeve 4 is fixedly connected to a micro electric push rod 36. The metal plate 23 is electrically connected to the positioning spotlight 342 and the micro electric push rod 36 through a PLC controller. The output end of the micro electric push rod 36 is fixedly connected to a limiting column 37. The side wall of the rotating ring 341 is provided with a plurality of limiting grooves that match the limiting column 37. When the sieve plate 112 on the surface of the sand washing machine is damaged, when the damaged sieve plate 112 is replaced, the damaged area of ​​the sand washing machine sieve plate 112 can be marked, so that the operator can quickly find the damaged sieve plate 112 for replacement after the sand washing machine stops working, thereby improving the convenience of the operator's work.

[0039] A conveying chamber 38 is provided at the front end of the mounting shaft 3, and a partition 39 is fixedly connected to the inner wall of the conveying chamber 38, and a driving motor 40 is fixedly connected to the rear side wall of the partition 39. The output end of the driving motor 40 extends out of the partition 39 and is fixedly connected to a spiral feed shaft 41. A feed hopper 42 is connected to the upper side wall of the conveying chamber 38, and the upper side wall of the feed hopper 42 is located at the left end of the filter screen 9. The left end of the filter screen 9 is tilted downward, so that the sand and gravel aggregates screened by the filter screen 9 can be conveyed.

[0040] The inner wall of the bucket 8 is rotatably connected to a stirring shaft 43, and the outer wall of the stirring shaft 43 is fixedly connected to a plurality of stirring plates 44. A water spray pipe 45 is provided above the sand washing tank 1, and the pipe wall of the water spray pipe 45 is connected to a plurality of nozzles 46. When high-speed water flow impacts the stirring shaft 43 and the stirring plates 44, the stirring shaft 43 and the stirring plates 44 will rotate, thereby stirring the sand and gravel aggregates in the bucket 8.

[0041] The rod wall fixing sleeve of the support frame 212 is provided with a protective cover 47 , and the protective cover 47 is located above the support tube 211 , which can prevent water from entering the support tube 211 .

[0042] The operating principle of the present invention is now described as follows: sand and gravel materials are transported to the sand washing tank 1 through a feeder, and water is injected into the sand washing tank 1. Then the operator starts the reduction motor 5 through an external switch. The reduction motor 5 drives the mounting sleeve 4 to rotate through a toothed belt assembly. The mounting sleeve 4 drives the mounting ring 7 and the bucket 8 to rotate through a support frame 6. During the rotation process, the bucket 8 will scoop up a part of the sand and gravel materials in the sand washing tank 1 and rotate together. When the bucket 8 drives the sand and gravel materials to rotate to the bottom of the water spray pipe 45, the high-speed water flow sprayed from the water spray pipe 45 will drive the stirring The shaft 43 and the stirring plate 44 rotate together to stir the sand and gravel materials in the bucket 8, so that the soil and other impurities in the sand and gravel materials pass through the screen plate 112 with the water flow and fall into the sand washing tank 1, and are discharged from the overflow port of the sand washing tank 1 (this is an existing mature technology and does not need to be described in detail in this article). After screening, sand and gravel aggregates that meet the specifications will remain in the bucket 8. When the mounting ring 7 drives the bucket 8 to rotate to the far right, the sand and gravel aggregates that meet the specifications in the bucket 8 will be separated from the bucket 8 under the action of gravity and fall into the next device for subsequent operations;

[0043] When the screen plate 112 is damaged due to aging and impact, the sieve holes on the surface of the screen plate 112 will increase due to damage. During the rotation of the bucket 8, more sand and gravel raw materials will fall onto the surface of the filter screen 9. Under the impact of the water flow, the mud will pass through the filter screen 9 and fall into the sand washing tank 1, while the sand and gravel aggregates that meet the specifications will stay on the surface of the filter screen 9, thereby increasing the weight of the filter screen 9. After the weight of the filter screen 9 increases, the metal block 22 will be driven downward through the support frame 212, so that the metal block 22 and the metal plate 23 are in contact. The metal plate 23 is electrically connected to the positioning spotlight 342 and the micro electric push rod 36 through the PLC controller. Then, the metal block 22 is electrically connected to the PLC controller, and an electrical signal is sent to the PLC controller. The PLC controller first controls the positioning spotlight 342 and the micro electric push rod 36 to work together. The positioning spotlight 342 will irradiate the light to the approximate area where the sieve plate 112 is damaged. Then the micro electric push rod 36 drives the limiting column 37 to work, so that the limiting column 37 is inserted into the limiting groove on the surface of the rotating ring 341, so that the rotating ring 341, the positioning spotlight 342 and the installation sleeve 4 rotate together, so that the light of the positioning spotlight 342 rotates with the rotation of the damaged sieve plate 112, which is convenient for the operator to quickly find the damaged sieve plate 112 later;

[0044] Then the PLC controller controls the air pump 24 and the control valve 28 to work. The air pump 24 delivers external gas to the jet box 25 and sprays it toward the filter 9, so that the sand and gravel embedded in the surface of the filter 9 are cleaned out, and a part of the gas will be delivered to the induction cylinder 26 through the air intake pipe 27, so that the air pressure below the piston plate 30 increases. The piston plate 30, pushed by the air pressure, will drive the electric contact frame 32 to move upward. When the filter 9 becomes heavier due to a lot of fallen soil, the air pump 24 and the control valve 28 will only work for a short time, and the piston plate 30 will only move upward for a short time. The electric contact frame 32 will not contact the electric contact plate 33 above. When the electric contact frame 32 and the electric contact plate 33 are no longer in contact with each other, they will not move upward for a set time. The secondary electrical signal is transmitted to the PLC controller. If the PLC controller does not receive the secondary electrical signal within the set time, it will control the micro-electric push rod 36 to drive the limit column 37 to retract, and control the positioning spotlight 342 to stop working. Under the action of the counterweight seat 35, the rotating ring 341 will drive the positioning spotlight 342 to move upward and return to its original position. When a large amount of sand and gravel aggregate falls from the surface of the filter screen 9, the weight on the surface of the filter screen 9 will be maintained within the set time, and gas will continue to enter the inside of the induction tube 26 to make the electric contact frame 32 and the electric contact plate 33 contact (it takes two seconds, and the bucket 8 is not far away at this time). When the electric contact frame 32 and the electric contact plate 33 are in contact, an electrical signal will be transmitted to the PLC controller, and the PLC controller After receiving this electrical signal, the micro electric push rod 36 will not be controlled to retract, and the positioning spotlight 342 will not be turned off. The PLC controller will control the buzzer to work for one minute to remind the surrounding operators that the screen plate 112 of the sand washing machine is damaged. Then the PLC controller will control the corresponding electromagnetic block 17 and the micro motor 14 to work (the damaged area of ​​the screen plate 112 will be in the middle position of the upper part of the mounting ring 7 at this time. The conductive blocks 19 on the surfaces of the three buckets 8 in the upper middle position are all placed downward under the action of gravity and are in contact with the arc-shaped conductive plate 20. The control signal sent by the PLC controller can be transmitted to the corresponding electromagnetic block 17 and the micro motor 14 through the conductive block 19 and the arc-shaped conductive plate 20. The electromagnetic blocks 17 and The micro motor 14 will not be affected by the electrical signal sent by the PLC controller). When the conductive block 19 receives the control signal sent by the PLC controller, it will control the electromagnetic block 17 in the corresponding area to stop working for three seconds to release the adsorption of the sieve plate 112. Then the PLC controller controls multiple micro motors 14 in the corresponding area to work simultaneously for the set time, so that the sieve plate 112 originally in a horizontal state rotates to a vertical state and separates from the sieve mouth 15, and the sieve plate 112 originally in a vertical state is placed under the sieve mouth 15. After three seconds, the electromagnetic block 17 will continue to be energized to generate magnetic force, so that the replaced sieve plate 112 can be adsorbed and fixed. The sand washing machine does not need to be shut down to replace the sieve plate 112. During the subsequent shutdown maintenance,After the operator accurately finds the damaged sieve plate 112 through the light signal emitted by the positioning spotlight 342 and replaces it, when the replaced sieve plate 112 is damaged, the PLC controller controls the micro motor 14 to work in the reverse direction to the set angle, and moves the replaced sieve plate 112 to the sieve opening 15 to continue the screening work;

[0045] The sand and gravel aggregates screened by the filter screen 9 will fall into the conveying chamber 38 through the feed hopper 42. Under the action of the PLC controller, the drive motor 40 will work five seconds after a heavy object falls on the surface of the filter screen 9. The drive motor 40 drives the spiral feed shaft 41 to work and transport the sand and gravel aggregates that fall into the conveying chamber 38 out.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving impeller sand washing machine, comprising a sand washing tank (1), characterized in that: The front and rear sides of the sand washing tank (1) are fixedly connected with mounting frames (2), the two mounting frames (2) are fixedly connected with a same mounting shaft (3), the outer wall of the mounting shaft (3) is rotatably connected with two mounting sleeves (4) via a bearing, the front side wall of the sand washing tank (1) is connected with a reduction motor (5), the output end of the reduction motor (5) is transmission-connected with the front mounting sleeve (4) via a toothed belt assembly, the outer walls of the two mounting sleeves (4) are fixedly connected with a plurality of support frames (6), the ends of the plurality of support frames (6) away from the mounting sleeves (4) are fixedly connected with a same mounting ring (7), the outer wall of the mounting ring (7) is fixedly connected with a plurality of buckets (8), and the side wall of the mounting ring (7) is fixedly connected with a plurality of movable The invention relates to a replaceable filter assembly (11), wherein the upper side wall of the installation shaft (3) is connected to a filter screen (9) through an inductive support assembly (21), the inductive support assembly (21) is electrically connected to a plurality of replaceable filter assemblies (11) in a one-to-one correspondence through a plurality of positioning assemblies (18), the lower side wall of the filter screen (9) is fixedly connected to a vibration motor (10), the outer wall of the installation shaft (3) is provided with a position marking assembly (34), the inductive support assembly (21) is electrically connected to the position marking assembly (34) through a PLC controller, the replaceable filter assembly (11) comprises two installation frames (111) and two sieve plates (112), the inner wall of the installation ring (7) is provided with a plurality of placement grooves (12), the installation frame (111) is fixedly The sieve plate (112) is connected to a placement groove (12); the sieve plate (112) is located in a mounting frame (111); and mounting rods (13) are fixedly connected to the left and right sides of the sieve plate (112); a micro motor (14) is fixedly connected to the rear side wall of the mounting frame (111); an output end of the micro motor (14) is fixedly connected to the mounting rod (13) on the rear side; a plurality of sieve openings (15) are provided on the side wall of the mounting ring (7); two permanent magnet blocks (16) are symmetrically fixedly connected to one side of the sieve plate (112) close to the sieve openings (15); a plurality of grooves are provided on the inner wall of the mounting ring (7); and an electromagnetic block (17) is fixedly connected in the groove; and the positioning assembly (18) comprises a cylinder (181); and the rear side of the cylinder (181) is provided with a plurality of sieve openings (15); and The inner wall is rotatably connected to a hanging rod (182), the rear side wall of the hanging rod (182) is fixedly connected to a conductive block (19), the rear inner wall of the cylinder (181) is fixedly connected to an arc-shaped conductive plate (20), the arc-shaped conductive plate (20) is electrically connected to the electromagnetic block (17) and the micro motor (14), the conductive block (19) is electrically connected to the PLC controller, the induction support assembly (21) comprises two support cylinders (211) and two support frames (212), the two support cylinders (211) are fixedly connected to the upper side wall of the installation shaft (3), the support frame (212) is inserted into the support cylinder (211), and the side wall between the support frame (212) and the support cylinder (211) is fixedly connected to the same spring,A metal block (22) is fixedly connected to the lower end of the support frame (212) on the right side, and the metal block (22) is electrically connected to an external power supply. A metal plate (23) is inlaid on the right inner wall of the support cylinder (211) on the right side. An air pump (24) is fixedly connected to the upper side wall of the installation shaft (3). An injection box (25) is fixedly connected to the upper side wall of the installation shaft (3) through a bracket. The air outlet of the air pump (24) is connected to the injection box (25). An induction cylinder (26) is fixedly connected to the upper side wall of the installation shaft (3) through a bracket. The induction cylinder (26) and the air outlet of the air pump (24) are connected by a same air inlet pipe (27), a control valve (28) is arranged in the air inlet pipe (27), the metal plate (23) is electrically connected to the control valve (28) through a PLC controller, a support ring (29) is fixedly connected to the inner wall of the induction cylinder (26), a piston plate (30) is placed above the support ring (29), a microporous plate (31) is inlaid on the side wall of the induction cylinder (26), an air pressure hole is opened on the side wall of the induction cylinder (26), and the upper side wall of the piston plate (30) is fixedly connected to the inner wall of the induction cylinder (26). The sand washing tank (1) is fixedly connected with an electric contact frame (32), the electric contact frame (32) is electrically connected to an external power supply, the right inner wall of the induction tube (26) is inlaid with an electric contact plate (33), the electric contact plate (33) is electrically connected to a PLC controller, the right side wall of the sand washing tank (1) is fixedly connected with a buzzer, the electric contact plate (33) is electrically connected to the buzzer through the PLC controller, and the position marking component (34) includes a rotating ring (341) and a positioning spotlight (342), the rotating ring (341) is rotatably sleeved on the outer wall of the installation shaft (3), and the positioning spotlight (342) is fixedly connected to the upper side wall of the rotating ring (341), the lower side wall of the rotating ring (341) is fixedly connected to a counterweight seat (35), the side wall of the mounting sleeve (4) located on the right side is fixedly connected to a micro electric push rod (36), the metal plate (23) is electrically connected to the positioning spotlight (342) and the micro electric push rod (36) through a PLC controller, the output end of the micro electric push rod (36) is fixedly connected to a limiting column (37), and the side wall of the rotating ring (341) is provided with a plurality of limiting grooves that match the limiting columns (37).

2. The high-efficiency and energy-saving impeller sand washing machine according to claim 1 is characterized in that: A conveying cavity (38) is provided at the front end of the mounting shaft (3), a partition (39) is fixedly connected to the inner wall of the conveying cavity (38), a driving motor (40) is fixedly connected to the rear side wall of the partition (39), an output end of the driving motor (40) extends out of the partition (39) and is fixedly connected to a spiral feeding shaft (41), an upper side wall of the conveying cavity (38) is connected to a feeding hopper (42), the upper side wall of the feeding hopper (42) is located at the left end of the filter screen (9), and the left end of the filter screen (9) is arranged to be tilted downward.

3. The high-efficiency and energy-saving impeller sand washing machine according to claim 2 is characterized in that: The inner wall of the bucket (8) is rotatably connected to a stirring shaft (43), and the outer wall of the stirring shaft (43) is fixedly connected to a plurality of stirring plates (44). A water spray pipe (45) is provided above the sand washing tank (1), and the pipe wall of the water spray pipe (45) is connected to a plurality of spray heads (46).

4. The high-efficiency and energy-saving impeller sand washing machine according to claim 1 is characterized in that: The rod wall fixing sleeve of the support frame (212) is provided with a protective cover (47), and the protective cover (47) is located above the support tube (211).

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