Multistage crushing sand making device

Abstract

The application relates to the technical field of sand making equipment, in particular to a multi-stage crushing sand making equipment, which comprises a supporting seat, a sieve disc movably arranged in an inclined manner at the middle of the upper portion of the supporting seat, a fine sieve channel fixedly arranged on one side of the outer surface of the sieve disc, a coarse sieve channel fixedly arranged on the upper surface of the sieve disc, a fixing seat fixedly arranged on one side of the upper surface of the supporting seat, a crusher fixedly arranged on one side of the upper surface of the fixing seat, a fine crushing cavity formed in the lower portion of the inner surface of the crusher, fine crushing rotors rotatably and penetratingly arranged on the inner surface of the fine crushing cavity, a coarse crushing cavity formed in the upper portion of the inner surface of the crusher, and coarse crushing rotors rotatably and penetratingly arranged on the inner surface of the coarse crushing cavity. The application can ensure the full and reasonable utilization of the crushed stone raw materials, is favorable for reducing the additional loss of the sand making raw materials, reduces the powder content in the sand making products, and can flexibly adjust the division state of the crushed stone raw materials according to the sand making output, so as to ensure the stability of the sand making amount.

Description

Technical Field

[0001] This invention relates to the field of sand making equipment technology, and more specifically, to a multi-stage crushing and sand making equipment. Background Technology

[0002] Artificial sand making refers to the process of crushing rocks into construction sand using mechanical equipment. It can replace natural sand in construction, mining, and water conservancy projects. In the existing sand making process, crushed stone of various sizes is usually transported to the equipment for crushing and processing. The required finished sand can be obtained through multiple crushing processes. However, it is difficult to plan the sand gradation according to the particle size of the crushed stone, which can easily affect the sand making efficiency. At the same time, there is the problem of not being able to fully utilize the crushed stone, resulting in additional raw material loss and the phenomenon of excessive stone powder content in the sand, which in turn affects the sand quality.

[0003] Based on this, a multi-stage crushing and sand making equipment is proposed. Summary of the Invention

[0004] The main objective of this invention is to provide a multi-stage crushing and sand making equipment to overcome the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a multi-stage crushing and sand making equipment, including a support base. A screen plate is movably installed at the center of the upper part of the support base in an inclined manner. A fine screen channel is fixedly installed on one side of the outer surface of the screen plate, and a coarse screen channel is fixedly installed on the upper surface of the screen plate. A fixed seat is fixedly installed on one side of the upper surface of the support base, and a crusher is fixedly installed on one side of the upper surface of the fixed seat. A fine crushing chamber is opened on the lower side of the inner surface of the crusher. Fine crushing rotors are rotatably inserted and installed on both sides of the middle part of the inner surface of the fine crushing chamber. A coarse crushing chamber is opened on the upper other side of the inner surface of the crusher. Coarse crushing rotors are rotatably inserted and installed on both sides of the middle part of the inner surface of the coarse crushing chamber. A partition plate is fixedly installed on the adjacent side of the inner surfaces of the fine crushing chamber and the coarse crushing chamber. A flow divider is provided on the other side of the lower part of the inner surface of the crusher. A rotating shaft is rotatably installed through the upper part of the inner surface of the flow divider. A sealing plate is fixedly installed in the middle of the upper surface of the rotating shaft. A flow divider opening is provided in the middle of one side of the outer surface of the partition. The sealing plate fits into the flow divider opening.

[0006] As a further improvement of the present invention, a plurality of support rods are uniformly fixedly installed at the middle of the front and rear ends of the upper surface of the support base. The upper front end of the outer surface of the plurality of support rods is provided with a movable groove. The middle of the bottom surface and the top surface of the movable groove are fixedly installed together with a limiting rod. A compression spring is movably sleeved on the lower part of the outer surface of the limiting rod. A plurality of connecting rods are protruding and fixedly installed at the lower part of the front and rear ends of the outer surface of the screen plate. The other end of the connecting rod is inserted into the movable groove and movably sleeved on the upper part of the outer surface of the limiting rod.

[0007] As a further improvement of the present invention, a vibration motor is fixedly installed on the outer surface of the sieve disc away from the fine sieve channel, and a guide plate is fixedly installed on the lower surface of the fine sieve channel away from the sieve disc. The guide plate is arranged in the opposite direction to the inclination of the fine sieve channel. The lower surfaces of both the fine sieve channel and the coarse sieve channel are arranged in a mesh shape, and the mesh aperture of the fine sieve channel is smaller than that of the coarse sieve channel.

[0008] As a further improvement of the present invention, a collecting cylinder is fixedly installed on the other side of the upper surface of the support base. A discharge port is opened through the middle of the bottom surface of the collecting cylinder. Support blocks are fixedly installed on the middle of the four sides of the lower part of the inner surface of the collecting cylinder. The upper surfaces of the support blocks jointly support and fix a coarse sand grinding cylinder. A second feed port is fixedly installed in the middle of the side of the coarse sand grinding cylinder closest to the outer surface of the crusher. A second discharge port is fixedly installed in the middle of the rear end of the outer surface of the coarse sand grinding cylinder. A fine sand grinding cylinder is fixedly installed on the upper surface of the coarse sand grinding cylinder. The fine sand grinding cylinder is far away from the crusher. A first feed inlet is fixedly installed on the middle of one side of the outer surface of the crusher. A first discharge outlet is fixedly installed on the middle of the front end of the outer surface of the fine sand grinding cylinder. Screens are provided through the outer ring surfaces of both the fine sand grinding cylinder and the coarse sand grinding cylinder. There is a gap between the fine sand grinding cylinder and the inner surface of the collecting cylinder. A second motor is fixedly installed on the middle of the upper surface of the fine sand grinding cylinder. Grinding blades are inserted and rotated through the middle of the inner top surface of the fine sand grinding cylinder and the middle of the inner bottom surface of the coarse sand grinding cylinder. The output end of the second motor is fixedly connected to the upper surface of the grinding blades.

[0009] As a further improvement of the present invention, a first conveyor belt assembly and a second conveyor belt assembly are fixedly installed on both sides of the inner surface of the support base. The first conveyor belt assembly is located above the second conveyor belt assembly. Both the first and second conveyor belt assemblies are composed of support rollers, conveyor belts, and guide wheels. The first conveyor belt assembly has one set of support rollers rotatably installed on one side of the inner surface of the support base, and the first conveyor belt assembly has another set of support rollers rotatably installed on the upper surface of the first feed inlet. The outer surfaces of the two sets of support rollers are jointly fitted with a conveyor belt. The second conveyor belt assembly has one set of support rollers rotatably installed on one side of the inner surface of the support base, and the second conveyor belt assembly has another set of support rollers rotatably installed on the upper surface of the second feed inlet. The outer surfaces of the two sets of support rollers are jointly fitted with a conveyor belt. The guide wheels are in contact with the turning points of the outer surfaces of the conveyor belt. A first motor is fixedly installed at the front end of the support roller of the second conveyor belt assembly near the fixed base. The first motor is fixedly connected to the lower surface of the support base. The outer surfaces of the support rollers of the second and first conveyor belt assemblies near the first motor are jointly fitted with a first transmission belt.

[0010] As a further improvement of the present invention, a dual-axis motor is fixedly installed on the upper and lower parts of the other side of the upper surface of the fixed base. An electric telescopic rod is fixedly installed at the front and rear ends of the middle part of the other side of the upper surface of the fixed base. A rocker arm is fixedly installed at the output end of the electric telescopic rod. The rocker arm consists of three sets of connecting rods that are movably hinged. The other end of the rocker arm is inserted and connected to the end of the rotating shaft that extends outward through the diversion cavity. A second transmission belt is installed on both output ends of the dual-axis motor. The other end of the second transmission belt on the lower dual-axis motor is respectively connected to the ends of the two sets of fine crushing rotors. The other end of the second transmission belt on the upper dual-axis motor is respectively connected to the ends of the two sets of coarse crushing rotors.

[0011] As a further improvement of the present invention, the upper surface of the fine crushing chamber is provided with a first feeding port through the crusher, the first feeding port being aligned with the side of the fine screen channel away from the screen plate; the lower surface of the fine crushing chamber is provided with a first discharge port through the crusher, the first discharge port being aligned with the upper surface of the first conveyor belt assembly near the first motor; the upper surface of the coarse crushing chamber is provided with a second feeding port through the crusher, the second feeding port being aligned with the side of the coarse screen channel away from the screen plate; the lower surface of the coarse crushing chamber and the upper surface of the diversion chamber are jointly provided with a second discharge port; the lower surface of the diversion chamber is provided with a third discharge port through the crusher, the third discharge port being aligned with the upper surface of the second conveyor belt assembly near the first motor.

[0012] The beneficial effects of this invention are: This invention can screen the crushed stone raw materials used for sand making, and send crushed stone raw materials of different particle sizes into different crushing chambers for crushing and processing sand of different particle sizes. This ensures the full and rational utilization of crushed stone raw materials, helps to avoid the extra loss caused by crushing crushed stone raw materials of different particle sizes in the same way, and improves the sand making efficiency. This invention can separate raw materials from crushed stone that are insufficient for sand production, thereby avoiding the problem of excessive powder content in the finished sand product caused by additional crushing of raw materials. At the same time, under the condition of raw material screening corresponding to different particle size sand crushing and processing, raw materials with insufficient sand production can be flowed and interconnected, so as to flexibly adjust the division state of crushed stone raw materials according to sand production output and ensure the stability of sand production. Attached Figure Description

[0013] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention; Figure 3 This is a sectional view of the support structure of the present invention. Figure 4 This is a schematic diagram showing the disassembled structure of the sieve disc of the present invention; Figure 5 This is a schematic diagram of the crusher structure of the present invention. Figure 6 This is a schematic diagram of the crusher structure disassembled and cut apart according to the present invention; Figure 7 This is a schematic diagram of the crusher structure disassembled and cut apart according to the present invention; Figure 8 This is a schematic diagram showing the disassembled structure of the collection cylinder of the present invention; Figure 9 This is a schematic diagram showing the disassembled and sectional view of the fine sand grinding cylinder structure of the present invention; Figure 10 This is a schematic diagram showing the disassembled and sectional view of the coarse sand grinding cylinder structure of the present invention; Figure 11 This is a schematic diagram showing the disassembled cross-section of the collection cylinder structure of the present invention.

[0014] In the diagram: 1. Support base; 101. Support rod; 102. Movable groove; 103. Limiting rod; 104. Compression spring; 2. Screen plate; 201. Connecting rod; 202. Fine screen channel; 203. Guide plate; 204. Coarse screen channel; 205. Vibrating motor; 3. First conveyor belt assembly; 4. Second conveyor belt assembly; 5. First motor; 501. First transmission belt; 6. Fixed base; 601. Dual-shaft motor; 602. Second transmission belt; 603. Electric telescopic rod; 604. Rocker arm; 7. Crusher; 701. Fine crushing chamber; 702. First feed port; 703. ... 704. Discharge port; 705. Fine crushing rotor; 706. Baffle plate; 707. Coarse crushing chamber; 708. Second feed port; 709. Second discharge port; 7000. Coarse crushing rotor; 8. Diversion chamber; 801. Third discharge port; 802. Rotating shaft; 803. Sealing plate; 9. Collection cylinder; 901. Discharge port; 902. Support block; 10. Fine sand grinding cylinder; 1001. First feed port; 1002. First discharge port; 11. Coarse sand grinding cylinder; 1101. Second feed port; 1102. Second discharge port; 12. Screen; 13. Second motor; 1301. Grinding blades. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0018] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0019] Please see Figures 1-11 As shown, a multi-stage crushing and sand making equipment includes a support base 1. Several support rods 101 are uniformly fixedly installed on the middle of the front and rear ends of the upper surface of the support base 1. The upper front end of the outer surface of the support rods 101 is provided with a movable groove 102. The middle of the bottom surface and the top surface of the movable groove 102 are fixedly installed with a limiting rod 103. The lower part of the outer surface of the limiting rod 103 is movably sleeved with a compression spring 104. The middle of the upper part of the support base 1 is inclined and movably installed with a screen plate 2. Several connecting rods 201 are fixedly installed on the lower front and rear ends of the outer surface of the screen plate 2. The other end of the connecting rod 201 is inserted into the movable groove 102 and movably sleeved on the upper part of the outer surface of the limiting rod 103. It should be noted that the support rod 101 is used to tilt and suspend the screen plate 2 above the support base 1, so that the crushed stone raw material can flow into the crusher 7 through the screening of the screen plate 2. The screen plate 2 is in a vibrating screening state during the screening of the crushed stone raw material. Since the screen plate 2 is connected to the limiting rod 103 set in the movable groove 102 through the connecting rod 201, the connecting rod 201 can slide and undulate along the limiting rod 103 when the screen plate 2 is vibrating and screening, so that the screen plate 2 provides space for vibrating screening. When the connecting rod 201 slides and undulates along the limiting rod 103, it will squeeze the compression spring 104. The compression spring 104 itself elastically buffers the vibration pressure caused by the vibration screening of the screen plate 2 on the support rod 101, ensuring the stability of the support rod 101 supporting the screen plate 2.

[0020] A fine sieve channel 202 is fixedly installed on one side of the outer surface of the sieve disc 2. A guide plate 203 is fixedly installed on the lower surface of the fine sieve channel 202 away from the sieve disc 2. The guide plate 203 is set in the opposite direction of inclination to the fine sieve channel 202. A coarse sieve channel 204 is fixedly installed on the upper surface of the sieve disc 2. The lower surfaces of both the fine sieve channel 202 and the coarse sieve channel 204 are set in a mesh shape. The mesh aperture of the fine sieve channel 202 is smaller than that of the coarse sieve channel 204. A vibration motor 205 is fixedly installed on the outer surface of the sieve disc 2 away from the fine sieve channel 202. It should be noted that by starting the vibration motor 205, the screen plate 2 is controlled to vibrate and screen, thereby indirectly driving the coarse screen 204 and the fine screen 202 to vibrate and screen, and uniformly guiding the crushed stone material into the upper coarse screen 204. Since the lower surface of the coarse screen 204 is set with a mesh, when its mesh aperture is smaller than the particle size of the coarse sand product, the crushed stone material that does not meet the requirements for processing coarse sand products can pass through the coarse screen 204 and fall onto the fine screen 202. At this time, the crushed stone material remaining on the coarse screen 204 is the material with a particle size larger than that of the coarse sand product, and thus this material is guided into the coarse crushing chamber 706 of the crusher 7 for crushing and processing of coarse sand products. The crushed stone material falling into the fine screen channel 202 has a mesh-like structure on its lower surface. When the mesh size is smaller than the particle size of the fine sand product, the crushed stone material that does not meet the requirements for processing fine sand products can pass through the fine screen channel 202 and fall onto the guide plate 203. At this time, the crushed stone material remaining on the fine screen channel 202 is the material with a particle size larger than that of the fine sand product. This material is then introduced into the fine crushing chamber 701 of the crusher 7 for crushing and processing fine sand products. The crushed stone material falling onto the guide plate 203 is waste material whose particle size is too small to be processed into sand products. Separating it can reduce the problem of excessive powder content in the sand products caused by crushing it into powder in the crusher 7. The waste material can fall onto the first conveyor belt assembly 3 through the guide plate 203 and be sent into the fine sand grinding cylinder 10 through the first conveyor belt assembly 3. It is then discharged into the collection cylinder 9 by the screen 12 set on the outer ring surface of the fine sand grinding cylinder 10 and discharged through the discharge port 901 opened in the collection cylinder 9. The waste material that does not pass through the screen 12 and remains in the fine sand grinding cylinder 10 indicates that its particle size meets the particle size specifications of fine sand products. It can be made into fine sand products by grinding and shaping it in the fine sand grinding cylinder 10. By classifying and crushing raw materials, the crushed stone raw materials can be fully and rationally utilized. This not only yields the desired finished sand, but also helps to save raw material losses and improve processing efficiency.

[0021] A fixed seat 6 is fixedly installed on one side of the upper surface of the support base 1. A crusher 7 is fixedly installed on one side of the upper surface of the fixed seat 6. A fine crushing chamber 701 is opened on the lower side of the inner surface of the crusher 7. A first feeding port 702 is opened through the crusher 7 on the upper surface of the fine crushing chamber 701. The first feeding port 702 is aligned with the side of the fine screen channel 202 away from the screen plate 2. A first discharge port 703 is opened through the crusher 7 on the lower surface of the fine crushing chamber 701. The first discharge port 703 is aligned with the upper surface of the first conveyor belt assembly 3 near the end of the first motor 5. Fine crushing rotors 704 are rotatably inserted and installed on both sides of the middle part of the inner surface of the fine crushing chamber 701. It should be noted that by feeding the crushed stone material on the fine screen channel 202 into the fine crushing chamber 701 through the first feed port 702, the crushed stone material is crushed and sanded by the bidirectional interlocking crushing of the fine crushing rotor 704. The crushed semi-finished product can be discharged from the fine crushing chamber 701 through the first discharge port 703 and fall onto the first conveyor belt assembly 3, and the first conveyor belt assembly 3 transports the semi-finished fine sand.

[0022] A coarse crushing chamber 706 is provided on the other side of the upper part of the inner surface of the crusher 7. A second feed port 707 is provided through the upper surface of the coarse crushing chamber 7. The second feed port 707 is aligned with the side of the coarse screen channel 204 away from the screen plate 2. Coarse crushing rotors 709 are rotatably inserted and installed on both sides of the middle part of the inner surface of the coarse crushing chamber 706. A partition plate 705 is fixedly installed on the side of the fine crushing chamber 701 and the inner surface of the coarse crushing chamber 706 that is close to each other. A diversion chamber 8 is provided on the lower side of the inner surface of the crusher 7. The lower surface of the coarse crushing chamber 706 and the upper surface of the diversion chamber 8 are connected to form a second discharge port 708. The lower surface of the diversion chamber 8 is connected to the crusher 7 to form a third discharge port 801. The third discharge port 801 is aligned with the upper surface of the second conveyor belt assembly 4 near the first motor 5. A rotating shaft 802 is rotatably installed on the upper part of the inner surface of the diversion chamber 8. A sealing plate 803 is fixedly installed in the middle of the upper surface of the rotating shaft 802. A diversion port is provided on one side of the outer surface of the partition plate 705. The sealing plate 803 fits into the diversion port. It should be noted that by feeding the crushed stone material on the coarse screen channel 204 into the coarse crushing chamber 706 through the second feed port 707, the crushed stone material is crushed and sanded by the bidirectional biting crushing of the coarse crushing rotor 709. The crushed semi-finished product can be discharged from the coarse crushing chamber 706 through the second discharge port 708 and enter the diversion chamber 8. It then falls onto the second conveyor belt assembly 4 through the third discharge port 801 opened in the diversion chamber 8, and the second conveyor belt assembly 4 transports the semi-finished coarse sand. By setting a partition 705, the coarse crushing chamber 706 and the fine crushing chamber 701 in the crusher 7 can be separated. If the output of fine sand semi-finished product in the fine crushing chamber 701 is insufficient, the rotating shaft 802 set in the diversion chamber 8 is controlled to rotate clockwise. When the rotating shaft 802 rotates clockwise, it can drive the sealing plate 803 to rotate synchronously. Since a diversion port is opened on one side of the outer surface of the partition 705, the coarse crushing chamber 706 and the fine crushing chamber 701 are interconnected through the diversion port. When the rotating shaft 802 is not rotating, the sealing plate 803 fits with the diversion port to seal the diversion port, thereby blocking the communication between the coarse crushing chamber 706 and the fine crushing chamber 701. When the rotating shaft 802 rotates clockwise and drives the sealing plate 803 to rotate synchronously, the sealing plate 803 can be controlled to disengage from the diversion port. At this time, the diversion port can be exposed to realize the communication between the coarse crushing chamber 706 and the fine crushing chamber 701. When the coarse crushing chamber 706 and the fine crushing chamber 701 are connected, the semi-finished coarse sand in the coarse crushing chamber 706 can flow into the fine crushing chamber 701 and be crushed in the fine crushing chamber 701 to increase the output of fine sand products. By controlling the clockwise rotation angle of the rotating shaft 802, the diameter of the outlet of the sealing plate 803 can be controlled to control the flow rate of the semi-finished coarse sand in the coarse crushing chamber 706 into the fine crushing chamber 701.

[0023] A dual-axis motor 601 is fixedly installed on the upper and lower parts of the other side of the upper surface of the fixed base 6. An electric telescopic rod 603 is fixedly installed on the front and rear ends of the middle part of the other side of the upper surface of the fixed base 6. A rocker arm 604 is fixedly installed on the output end of the electric telescopic rod 603. The rocker arm 604 consists of three sets of connecting rods that are movably hinged. The other end of the rocker arm 604 is inserted and connected to the end of the rotating shaft 802 that extends outward through the diversion cavity 8. The two output ends of the dual-axis motor 601 are both equipped with a second transmission belt 602. The other end of the second transmission belt 602 on the two output ends of the lower dual-axis motor 601 is respectively connected to the ends of the two sets of fine crushing rotors 704. The other end of the second transmission belt 602 on the two output ends of the upper dual-axis motor 601 is respectively connected to the ends of the two sets of coarse crushing rotors 709. It should be noted that the dual-shaft motor 601, in conjunction with the second transmission belt 602, can control the rotation of the fine crushing rotor 704 and the coarse crushing rotor 709, thereby using the rotation of the fine crushing rotor 704 and the coarse crushing rotor 709 to crush the stone raw material. Since a rocker arm 604 is inserted and connected to the end of the rotating shaft 802 that extends through the diversion cavity 8, and the other end of the rocker arm 604 is connected to the output end of the electric telescopic rod 603, the rocker arm 604 can be controlled to rotate the rotating shaft 802 by the extension and retraction of the output end of the electric telescopic rod 603. When the electric telescopic rod 603 is in the retracted state, it can drive the rocker arm 604 to extend, thereby controlling the rotating shaft 802 to rotate clockwise. When the electric telescopic rod 603 is in the extended state, it can push the rocker arm 604 to push the rotating shaft 802, controlling the rotating shaft 802 to rotate counterclockwise. Since the rocker arm 604 is composed of three sets of connecting rods that are movably hinged, its angle can be freely adjusted to ensure the accuracy of the electric telescopic rod 603's control over the rotating shaft 802.

[0024] A collecting cylinder 9 is fixedly installed on the other side of the upper surface of the support base 1. A discharge port 901 is opened through the middle of the bottom surface of the collecting cylinder 9. Support blocks 902 are fixedly installed on the middle of the four sides of the lower part of the inner surface of the collecting cylinder 9. The upper surfaces of the support blocks 902 together support and fix a coarse sand grinding cylinder 11. A second feed port 1101 is fixedly installed in the middle of the side of the coarse sand grinding cylinder 11 closest to the outer surface of the crusher 7. A second discharge port 1102 is fixedly installed in the middle of the rear end of the outer surface of the coarse sand grinding cylinder 11. A fine sand grinding cylinder 10 is fixedly installed on the upper surface of the coarse sand grinding cylinder 11. A fine sand grinding cylinder 10 is fixedly installed in the middle of the side of the fine sand grinding cylinder 10 away from the outer surface of the crusher 7. A first feed inlet 1001 is fixedly installed. A first discharge outlet 1002 is fixedly installed at the middle of the front end of the outer surface of the fine sand grinding cylinder 10. A screen 12 is opened through the outer ring surface of both the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11. There is a gap between the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11 and the inner surface of the collecting cylinder 9. A second motor 13 is fixedly installed at the middle of the upper surface of the fine sand grinding cylinder 10. A grinding blade 1301 is inserted and rotated through the middle of the inner top surface of the fine sand grinding cylinder 10 and the middle of the inner bottom surface of the coarse sand grinding cylinder 11. The output end of the second motor 13 is fixedly connected to the upper surface of the grinding blade 1301. It should be noted that when the fine sand semi-finished product and the coarse sand semi-finished product are respectively conveyed into the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11, the second motor 13 can be started to control the grinding blade 1301 to rotate clockwise. At this time, the clockwise rotating grinding blade 1301 can drive the semi-finished sand in the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11 to rotate at high speed. During the rotation, the semi-finished sand rubs against each other to achieve grinding and obtain finished sand. When it reaches the second discharge port 1102 and the first discharge port 1002 during the rotation, it is discharged to complete the production. Since the second discharge port 1102 is set in the opposite state to the first discharge port 1002, coarse sand and fine sand can be discharged in opposite directions to avoid them mixing. The second feed port 1101 is also set in the opposite state to the first feed port 1001, and is perpendicular to the second discharge port 1102 and the first discharge port 1002. This ensures that the fine sand entering the fine sand grinding cylinder 10 from the first feed port 1001 and being discharged through the first discharge port 1002, and the coarse sand entering the coarse sand grinding cylinder 11 from the second feed port 1101 and being discharged through the second discharge port 1102, can all be rotated and ground in the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11 under the drive of the grinding blades 1301 and then discharged, thereby ensuring the grinding effect on the finished sand. Since both the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11 have screens 12 that are pierced through their outer ring surfaces, when the semi-finished sand is rotated and ground inside the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11, sand smaller than the aperture of the screen 12 can be thrown out through the screen 12 into the collection cylinder 9 by the centrifugal force generated by the rotation. Since there is a gap between the inner surface of the collection cylinder 9 and the screen 12, the screen 12 can be used to discharge waste sand. The discharged waste sand will fall into the collection cylinder 9 and be discharged outside through the discharge port 901, thus completing the screening of the finished sand. The aperture of the screen 12 is smaller than the particle size of the finished fine sand.

[0025] A first conveyor belt assembly 3 and a second conveyor belt assembly 4 are fixedly installed on both sides of the inner surface of the support base 1. The first conveyor belt assembly 3 is located above the second conveyor belt assembly 4. Both the first conveyor belt assembly 3 and the second conveyor belt assembly 4 consist of support rollers, a conveyor belt, and guide wheels. One set of support rollers in the first conveyor belt assembly 3 is rotatably installed on one side of the inner surface of the support base 1, and the other set of support rollers in the first conveyor belt assembly 3 is rotatably installed on the upper surface of the first feed inlet 1001. The outer surfaces of the two sets of support rollers are jointly fitted with a conveyor belt. One set of support rollers in the second conveyor belt assembly 4 is rotatably installed on the upper surface of the first feed inlet 1001. The second conveyor belt assembly 4 is rotatably mounted on one side of the inner surface of the support base 1. Another set of support rollers is rotatably mounted on the upper surface of the second feed port 1101. The outer surfaces of the two sets of support rollers are jointly driven and fitted with a conveyor belt. The guide wheels are in contact with the turning point of the outer surface of the conveyor belt. The front end of the support roller of the second conveyor belt assembly 4 near the fixed base 6 is fixedly mounted with a first motor 5. The first motor 5 is fixedly connected to the lower surface of the support base 1. The outer surfaces of the support rollers of the second conveyor belt assembly 4 and the first conveyor belt assembly 3 near the first motor 5 are jointly driven and fitted with a first transmission belt 501. It should be noted that, via the first conveyor belt assembly 3, another set of support rollers is rotatably mounted on the upper surface of the first feed inlet 1001. At this time, the semi-finished sand, finely crushed in the fine crushing chamber 701, can be conveyed by the first conveyor belt assembly 3 to the area above the first feed inlet 1001, and then introduced into the fine sand grinding cylinder 10 for fine sand finishing. Similarly, via the second conveyor belt assembly 4, another set of support rollers is rotatably mounted on the upper surface of the second feed inlet 1101. At this time, the semi-finished sand, coarsely crushed in the coarse crushing chamber 706, can be conveyed by the second conveyor belt assembly 4 to the area above the second feed inlet 1101, and then introduced into the coarse sand grinding cylinder 10. Coarse sand grinding is performed inside the sand grinding cylinder 11 to achieve the effect of separating coarse and fine sand processing. By starting the first motor 5, one of the support rollers of the second conveyor belt assembly 4 is driven to rotate, thus driving the second conveyor belt assembly 4 to run. Since the second conveyor belt assembly 4 and the first conveyor belt assembly 3 have the support rollers at both ends of the support rollers near the first motor 5 equipped with the first transmission belt 501, the first transmission belt 501 can drive the support rollers of the first conveyor belt assembly 3 to rotate synchronously when one of the support rollers of the second conveyor belt assembly 4 is rotating, thereby realizing the synchronous operation of the second conveyor belt assembly 4 and the first conveyor belt assembly 3 to transport sand.

[0026] When using this invention, the crushed stone raw material is first uniformly introduced into the upper coarse screen channel 204. At this time, the vibration motor 205 can be started to control the screen plate 2 to vibrate and screen. Since the lower surface of the coarse screen channel 204 is set with a mesh, when its mesh aperture is smaller than the particle size of the coarse sand product, the crushed stone raw material with a particle size smaller than that of the coarse sand product can pass through the coarse screen channel 204 and fall onto the fine screen channel 202. At this time, the crushed stone raw material remaining on the coarse screen channel 204 is the raw material with a particle size larger than that of the coarse sand product, and is introduced into the coarse crushing chamber 706 of the crusher 7 along the coarse screen channel 204. The crushed stone material falling onto the fine screen channel 202, because the lower surface of the fine screen channel 202 is mesh-like, allows the crushed stone material with a particle size smaller than that of the fine sand product to pass through the fine screen channel 202 and fall onto the guide plate 203. The crushed stone material remaining on the fine screen channel 202 at this point is the material with a particle size larger than that of the fine sand product, and it is guided along the fine screen channel 202 into the fine crushing chamber 701 of the crusher 7. Meanwhile, the crushed stone material falling onto the guide plate 203 is material whose particle size is too small to be considered fine. Waste material from the sand processing can fall onto the first conveyor belt assembly 3 through the guide plate 203, and be fed into the fine sand grinding cylinder 10 through the first conveyor belt assembly 3. Then, it is discharged into the collection cylinder 9 by the screen 12 set on the outer ring surface of the fine sand grinding cylinder 10, and discharged through the discharge port 901 opened in the collection cylinder 9. The waste material that does not pass through the screen 12 and remains in the fine sand grinding cylinder 10 indicates that its particle size meets the particle size specifications of fine sand products. It can be made into fine sand products by grinding and shaping in the fine sand grinding cylinder 10. Once both coarse and fine sand raw materials are fed into the crusher 7, the dual-shaft motor 601 can be started in conjunction with the second transmission belt 602 to control the rotation of the fine crushing rotor 704 and the coarse crushing rotor 709. The rotation of the fine crushing rotor 704 and the coarse crushing rotor 709 is used to crush the stone raw materials. The semi-finished sand that has been crushed in the fine crushing chamber 701 can be discharged from the fine crushing chamber 701 through the first discharge port 703 and fall onto the first conveyor belt assembly 3. The first conveyor belt assembly 3 then transports the semi-finished fine sand. The semi-finished sand that has been crushed in the coarse crushing chamber 706 can be discharged from the coarse crushing chamber 706 through the second discharge port 708 and enter the diversion chamber 8. It then falls onto the second conveyor belt assembly 4 through the third discharge port 801 opened in the diversion chamber 8. The second conveyor belt assembly 4 then transports the semi-finished coarse sand. The semi-finished fine sand conveyed by the first conveyor belt assembly 3 can be fed into the fine sand grinding cylinder 10, and the semi-finished coarse sand conveyed by the second conveyor belt assembly 4 can be fed into the coarse sand grinding cylinder 11. When the semi-finished fine sand and the semi-finished coarse sand are respectively fed into the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11, the second motor 13 can be started to control the grinding blades 1301 to rotate clockwise. At this time, the clockwise rotating grinding blades 1301 can drive the semi-finished sand in the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11 to rotate at high speed. During the rotation, the semi-finished sand rubs against each other to achieve grinding and obtain finished sand. When it reaches the second discharge port 1102 and the first discharge port 1002 during the rotation, it is discharged to complete the production. Since both the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11 have screens 12 that are opened through the outer ring surface, when the semi-finished sand is rotated and ground in the fine sand grinding cylinder 10 and the coarse sand grinding cylinder 11, sand smaller than the aperture of the screen 12 can be thrown out through the screen 12 into the collection cylinder 9 by the centrifugal force generated by the rotation, and discharged to the outside through the discharge port 901, thus completing the screening of the finished sand. Secondly, when the output of fine sand semi-finished product in the fine crushing chamber 701 is insufficient, the output end of the electric telescopic rod 603 can be retracted, thereby driving the rocker arm 604 to stretch and control the rotating shaft 802 to rotate clockwise. When the rotating shaft 802 rotates clockwise, it can drive the sealing plate 803 to rotate synchronously. Since a diversion port is opened on one side of the outer surface of the partition plate 705, the coarse crushing chamber 706 and the fine crushing chamber 701 are interconnected through the diversion port. When the rotating shaft 802 is not rotating, the sealing plate 803 fits with the diversion port to seal the diversion port, thereby blocking the connection between the coarse crushing chamber 706 and the fine crushing chamber 701. When the rotating shaft 802 rotates clockwise and drives the sealing plate 803 to rotate synchronously, it can control the sealing plate 803 to disengage from the diversion port. At this time, the diversion port can be exposed to realize the connection between the coarse crushing chamber 706 and the fine crushing chamber 701. When the coarse crushing chamber 706 and the fine crushing chamber 701 are connected, the semi-finished coarse sand in the coarse crushing chamber 706 can flow into the fine crushing chamber 701 and be crushed in the fine crushing chamber 701 to increase the output of fine sand products. By controlling the clockwise rotation angle of the rotating shaft 802, the diameter of the outlet of the sealing plate 803 can be controlled to control the flow rate of the semi-finished coarse sand in the coarse crushing chamber 706 into the fine crushing chamber 701.

[0027] The above are merely embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A multi-stage crushing and sand making equipment, characterized in that, The device includes a support base (1), a screen plate (2) is movably installed at the middle of the upper part of the support base (1) in an inclined manner, a fine screen channel (202) is fixedly installed on one side of the outer surface of the screen plate (2), a coarse screen channel (204) is fixedly installed on the upper surface of the screen plate (2), a fixed seat (6) is fixedly installed on one side of the upper surface of the support base (1), a crusher (7) is fixedly installed on one side of the upper surface of the fixed seat (6), a fine crushing chamber (701) is opened on the lower side of the inner surface of the crusher (7), a fine crushing rotor (704) is rotatably inserted and installed on both sides of the middle part of the inner surface of the fine crushing chamber (701), a coarse crushing chamber (706) is opened on the other side of the upper part of the inner surface of the crusher (7), a coarse crushing rotor (709) is rotatably inserted and installed on both sides of the middle part of the inner surface of the coarse crushing chamber (706), and a partition plate (705) is fixedly installed on the side of the inner surface of the fine crushing chamber (701) and the coarse crushing chamber (706) that are close to each other. A diversion chamber (8) is provided on the other side of the lower part of the inner surface of the crusher (7). A rotating shaft (802) is rotatably installed through the upper part of the inner surface of the diversion chamber (8). A sealing plate (803) is fixedly installed in the middle of the upper surface of the rotating shaft (802). A diversion port is provided in the middle of one side of the outer surface of the partition (705). The sealing plate (803) fits into the diversion port.

2. The multi-stage crushing and sand making equipment according to claim 1, characterized in that, A number of support rods (101) are uniformly fixedly installed on the middle of the front and rear ends of the upper surface of the support base (1). The upper front end of the outer surface of the support rods (101) is provided with a movable groove (102). The middle of the inner bottom surface and inner top surface of the movable groove (102) is fixedly installed with a limiting rod (103). The lower part of the outer surface of the limiting rod (103) is movably sleeved with a compression spring (104). A number of connecting rods (201) are protruding and fixedly installed on the lower part of the front and rear ends of the outer surface of the screen (2). The other end of the connecting rod (201) is inserted into the movable groove (102) and movably sleeved on the upper part of the outer surface of the limiting rod (103).

3. The multi-stage crushing and sand making equipment according to claim 2, characterized in that, A vibration motor (205) is fixedly installed on the outer surface of the sieve disc (2) away from the fine sieve channel (202). A guide plate (203) is fixedly installed on the lower surface of the fine sieve channel (202) away from the sieve disc (2). The guide plate (203) is set in the opposite direction to the inclination of the fine sieve channel (202). The lower surfaces of the fine sieve channel (202) and the coarse sieve channel (204) are both set in a mesh shape. The mesh aperture of the fine sieve channel (202) is smaller than that of the coarse sieve channel (204).

4. The multi-stage crushing and sand making equipment according to claim 3, characterized in that, A collecting cylinder (9) is fixedly installed on the other side of the upper surface of the support base (1). A discharge port (901) is opened through the middle of the bottom surface of the collecting cylinder (9). A support block (902) is fixedly installed on the middle of the four sides of the lower part of the inner surface of the collecting cylinder (9). A coarse sand grinding cylinder (11) is fixedly installed on the upper surface of the support block (902). A second feed port (1101) is fixedly installed on the middle of the side of the coarse sand grinding cylinder (11) close to the outer surface of the crusher (7). A second discharge port (1102) is fixedly installed on the middle of the rear end of the outer surface of the coarse sand grinding cylinder (11). A fine sand grinding cylinder (10) is fixedly installed on the upper surface of the coarse sand grinding cylinder (11). A fine sand grinding cylinder (10) is fixedly installed on the outer surface of the fine sand grinding cylinder (10) away from the outer surface of the crusher (7). A first feed inlet (1001) is fixedly installed on the side center. A first discharge outlet (1002) is fixedly installed on the front center of the outer surface of the fine sand grinding cylinder (10). A screen (12) is provided through the outer ring surface of both the fine sand grinding cylinder (10) and the coarse sand grinding cylinder (11). There is a gap between the fine sand grinding cylinder (10) and the coarse sand grinding cylinder (11) and the inner surface of the collecting cylinder (9). A second motor (13) is fixedly installed on the center of the upper surface of the fine sand grinding cylinder (10). A grinding blade (1301) is inserted and rotated through the center of the inner top surface of the fine sand grinding cylinder (10) and the center of the inner bottom surface of the coarse sand grinding cylinder (11). The output end of the second motor (13) is fixedly connected to the upper surface of the grinding blade (1301).

5. A multi-stage crushing and sand making equipment according to claim 4, characterized in that, A first conveyor belt assembly (3) and a second conveyor belt assembly (4) are fixedly installed on both sides of the inner surface of the support base (1). The first conveyor belt assembly (3) is located above the second conveyor belt assembly (4). Both the first conveyor belt assembly (3) and the second conveyor belt assembly (4) are composed of support rollers, conveyor belts, and guide wheels. The first conveyor belt assembly (3) has one set of support rollers rotatably installed on one side of the inner surface of the support base (1), and the first conveyor belt assembly (3) has another set of support rollers rotatably installed on the upper surface of the first feed inlet (1001). The outer surfaces of the two sets of support rollers are jointly fitted with a conveyor belt. The second conveyor belt assembly (4) has one set of support rollers. The second conveyor belt assembly (4) is rotatably mounted on one side of the inner surface of the support base (1). Another set of support rollers is rotatably mounted on the upper surface of the second feed inlet (1101). The outer surfaces of the two sets of support rollers are jointly driven and fitted with a conveyor belt. The guide wheels are in contact with the turning point of the outer surface of the conveyor belt. The second conveyor belt assembly (4) is located near the fixed base (6) and the front end of the support roller is fixedly mounted with a first motor (5). The first motor (5) is fixedly connected to the lower surface of the support base (1). The outer surfaces of the support rollers at both ends of the second conveyor belt assembly (4) and the first conveyor belt assembly (3) near the first motor (5) are jointly driven and fitted with a first transmission belt (501).

6. A multi-stage crushing and sand making equipment according to claim 5, characterized in that, A dual-axis motor (601) is fixedly installed on the upper and lower parts of the other side of the upper surface of the fixed base (6). An electric telescopic rod (603) is fixedly installed on the front and rear ends of the middle part of the other side of the upper surface of the fixed base (6). A rocker arm (604) is fixedly installed on the output end of the electric telescopic rod (603). The rocker arm (604) consists of three sets of connecting rods that are movably hinged. The other end of the rocker arm (604) is inserted and connected to the end of the rotating shaft (802) that extends outward through the diversion cavity (8). The two output ends of the dual-axis motor (601) are both equipped with a second transmission belt (602). The other end of the second transmission belt (602) on the two output ends of the lower dual-axis motor (601) is respectively connected to the ends of the two sets of fine crushing rotors (704). The other end of the second transmission belt (602) on the two output ends of the upper dual-axis motor (601) is respectively connected to the ends of the two sets of coarse crushing rotors (709).

7. A multi-stage crushing and sand making equipment according to claim 6, characterized in that, The upper surface of the fine crushing chamber (701) is provided with a first feed port (702) through the crusher (7), which is aligned with the side of the fine screen channel (202) away from the screen plate (2). The lower surface of the fine crushing chamber (701) is provided with a first discharge port (703) through the crusher (7), which is aligned with the upper surface of the first conveyor belt assembly (3) near the first motor (5). The upper surface of the coarse crushing chamber (706) is provided with a first discharge port (703) through the crusher (704). 7) A second feed port (707) is provided, which is aligned with the side of the coarse screen channel (204) away from the screen plate (2). The lower surface of the coarse crushing chamber (706) and the upper surface of the diversion chamber (8) are connected to form a second discharge port (708). The lower surface of the diversion chamber (8) is connected to the crusher (7) to form a third discharge port (801). The third discharge port (801) is aligned with the upper surface of the second conveyor belt assembly (4) near the first motor (5).

Images