A centrifugal impact desludging machine

Abstract

The invention discloses a centrifugal impact desilter, which relates to the technical field of sediment separation equipment and solves the technical problem that the existing equipment is prone to blockage of vibrating screen holes during sediment separation. The desilter comprises a frame, a screening assembly is arranged on the frame, the screening assembly comprises a casing, a wear-resistant conduit is arranged in the casing, a material distribution cone is connected at the outlet of the wear-resistant conduit, a rotating wheel is arranged on the material distribution cone, a first driving assembly for driving the rotating wheel to rotate is arranged below the casing, a partition is arranged on the inner wall of the casing, a gap is formed between the partition and the inner wall of the casing, after the mixed sediment is introduced into the rotating wheel, the first driving assembly drives the rotating wheel to rotate to generate centrifugal force, and the mixed material in the rotating wheel is thrown out under the action of the centrifugal force, and generates a rebound distance difference after hitting the casing, so as to separate the sediment from the sand and gravel.

Description

Technical Field

[0001] The present invention relates to the technical field of sediment separation equipment, and more specifically to the technical field of a centrifugal impact type desilter. Background Art

[0002] In the sand and gravel industry, the mud content in sand and gravel is an important factor that affects the quality of sand and gravel. Therefore, the mud content of sand and gravel used in concrete must be strictly controlled. At present, the main raw materials of the sand and gravel industry come from mountain stones. Due to the influence of the covering soil on the mountain, the raw materials will contain clay. The clay has strong viscosity and is in block form, so it needs to be separated.

[0003] At present, the main desilting methods in traditional sand and gravel production lines are feeder desilting and vibrating screen desilting;

[0004] Among them, the feeder removes mud by strip screening. The larger stones enter the next crushing process above the strips, and the smaller stones and soil mixture become waste at the bottom of the strips. This mud removal method has the following problems: if the strip spacing is too large, more stones will be wasted, and if the spacing is too small, the strips will block the holes, and the mud blocks themselves are also large, so it is difficult to ensure a more ideal mud removal effect;

[0005] The principle of mud removal by vibrating screen also adopts the screening treatment method, and a spray device is added to the vibrating screen to flush water, and the mud blocks are dispersed by the impact force of water, and then the mud is screened and removed. This mud removal method has the following disadvantages: when the mud is too viscous, it is not easy to disperse the mud blocks, and it is also easy to cause the holes of the vibrating screen to be blocked. Therefore, it is difficult to achieve a good mud removal effect when the soil viscosity is too high.

[0006] Therefore, how to solve the blockage of vibrating screen holes and better separate the soil from sand and gravel has become a technical problem to be solved at present. Summary of the invention

[0007] The purpose of the present invention is to solve the above technical problems and provide a centrifugal impact desilter.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] A centrifugal impact desilter comprises a frame, a screening assembly is arranged on the frame, the screening assembly comprises a casing, the casing is connected to the frame, a wear-resistant conduit is arranged in the casing, a distribution cone is connected to the outlet of the wear-resistant conduit, a rotating wheel is arranged on the distribution cone, a first driving assembly for driving the rotating wheel to rotate is arranged below the casing, a partition is arranged on the inner wall of the casing along its circumference, and a gap is formed between the partition and the inner wall of the casing.

[0010] Furthermore, an adjustment component for adjusting the radial movement of the partition is arranged on the casing.

[0011] Furthermore, the casing is annular, and the partitions are connected to the annular casing at equal intervals.

[0012] Furthermore, the partitions are provided in four groups, and the four groups of partitions are arranged on the casing along the circumferential direction of the casing, and each group of partitions corresponds to an adjustment component.

[0013] Furthermore, a wear-resistant plate is provided on the inner wall of the casing along its circumference, and the wear-resistant plate is connected to the casing.

[0014] Furthermore, the wear-resistant plate includes a reinforcing plate, which is connected to the casing by fasteners, and a T-shaped liner and a hanging plate for accommodating the T-shaped liner are installed on the reinforcing plate. The T-shaped liner is clamped in a groove of the hanging plate, and the hanging plate is connected to the inner side of the reinforcing plate.

[0015] Furthermore, the adjustment assembly includes a screw and a nut that cooperates with the screw thread, the screw is welded to the partition, and the nut is rotatably connected to the casing.

[0016] Furthermore, the first driving component includes a main shaft assembly installed in the casing and a first driving motor installed at the bottom of the frame, the main shaft assembly is connected to the casing through a bracket, one end of the rotating shaft of the main shaft assembly is connected to the rotating wheel, and the other end of the rotating shaft of the main shaft assembly and the rotating shaft of the first driving motor are both installed with pulleys, and the pulley of the main shaft assembly is connected to the pulley of the first driving motor through a V-belt.

[0017] Furthermore, a mixing assembly is arranged on the frame, and the mixing assembly includes a stirring tank, and the stirring tank is connected to the frame through a support frame, and the stirring tank is rotatably connected to the support frame. A second driving assembly for driving the stirring tank to rotate is also arranged on the support frame, and a material receiving trough is arranged on the support frame, and a feeding end of the material receiving trough is located below the discharge port of the stirring tank, and the discharge end of the material receiving trough is connected to the feeding end of the wear-resistant conduit.

[0018] Furthermore, the second drive assembly includes a second drive motor, which is connected to the support frame. A gear is installed on the rotating shaft of the second drive motor. A rack meshing with the gear is provided on the stirring tank, and the rack is connected to the stirring tank.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. In order to address the defects of mud removal by strip screening and mud removal by vibrating screen, a new mud and sand separation method is provided. The principle is that different materials have different rebound distances and then separate the mud and sand. First, the mixed mud and sand are introduced into the impeller, and the centrifugal force is generated by the rotation of the impeller. Under the action of centrifugal force, the mixed material in the impeller is thrown out and hits the casing, and then a rebound force is generated. Under the same conditions, the rebound distance of the mud is smaller than the rebound distance of the sand and gravel. The mud will fall from the gap between the partition and the inner wall of the casing and be discharged from the machine, while the sand and gravel will fall from the inside of the partition and be discharged from the machine, and then the mud and sand will be separated from the sand and gravel. Compared with mud removal by strip screening and mud removal by vibrating screen, the advantage of this scheme is that there is no need to consider the problem of strip spacing causing stone waste or strip blocking.

[0021] 2. The casing is provided with an adjusting component for adjusting the radial movement of the partition, which is used to horizontally adjust the gap between the partition and the inner wall of the casing. The distance between the partition and the casing can be adjusted according to the mixing situation of stone and mud under actual working conditions. The separation of soil and sand after the separation of the four groups of partitions is manually observed, and the corresponding adjusting component is adjusted to adjust the distance between the partitions along the casing. In this way, it is possible to quickly understand whether the current distance between the partitions along the casing needs to be adjusted, and then it can be completed by turning the nut, and the operation is more convenient.

[0022] 3. The wear-resistant plate is designed to thicken the casing to prevent the mud-sand mixture from colliding with the casing and causing damage. After the wear-resistant plate is installed, it has a protective effect on the casing. Secondly, when the T-shaped liner of the wear-resistant plate collides, the T-shaped liner can be detachably connected to the groove of the hanging plate to make the T-shaped liner replaceable. At the same time, there is a gap between the inner wall of the casing and the reinforcement plate of the wear-resistant plate, which is used to reduce the transmission of noise medium emitted by direct collision with the outer casing, and plays a certain noise reduction role.

[0023] 4. Design a specific driving component to rotate the wheel. The driving method is that the first driving motor is installed on the frame, and pulleys are installed on the other end of the rotating shaft of the main shaft assembly and the rotating shaft of the first driving motor. Then the pulley is connected through a V-belt to realize its transmission.

[0024] 5. Design a mixing component to mix the mud and sand while injecting water to accelerate the softening of the soil, effectively reducing the hardness of the soil, which is more conducive to the subsequent rebound distance difference based on the material, and the separation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a partial cross-section of the structure of the present invention;

[0026] Figure 2 Is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the adjustment of the housing and the partition of the present invention;

[0028] Figure 4 It is a schematic diagram of the installation structure of the housing and the wear-resistant plate of the present invention;

[0029] Figure 5 It is a schematic diagram of the assembly structure of the wear-resistant plate of the present invention;

[0030] Figure numerals: 1-screening component, 2-casing, 3-wear-resistant guide tube, 4-distributing cone, 5-rotor, 6-spindle assembly, 7-partition, 8-adjustment component, 9-wear-resistant plate; 10-frame, 11-mixing tank, 12-rack, 13-receiving trough, 14-second drive motor, 15-gear, 16-mixing component, 17-V-belt, 18-first drive motor; 19-first drive component, 20-nut, 21-screw, 22-reinforcement plate, 23-T-type lining, 24-hanging plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] like Figures 1 to 5 As shown, this embodiment provides a centrifugal impact desilter, including a frame 10, on which a screening assembly 1 is arranged, and the screening assembly 1 includes a casing 2, and the casing 2 is connected to the frame 10. A wear-resistant conduit 3 is arranged in the casing 2, and a distribution cone 4 is connected to the outlet of the wear-resistant conduit 3, and a rotating wheel 5 is arranged on the distribution cone 4. A first driving assembly 19 for driving the rotating wheel 5 to rotate is arranged below the casing 2, and a partition 7 connected to the inner wall of the casing 2 is arranged along its circumference, and there is a gap between the partition 7 and the inner wall of the casing 2.

[0035] In the above structure, in order to address the defects of the strip screening method and the vibration screen method, this embodiment provides a new method for separating mud and sand. The rebound distances of materials of different sizes and types are different. The rebound distances of different materials are different, and then the mud and sand are separated. The specific method for separating mud and sand is: first, the stone and mud enter the dividing cone 4 through the wear-resistant conduit 3, and the dividing cone 4 guides the stone and mud into the rotating wheel 5. The rotating wheel 5 is driven by the first driving component 19 to rotate, so that the mixing When the material is thrown out, the mud in the mud-sand mixture will fall from the gap between the partition 7 and the inner wall of the casing 2 and be discharged from the machine. The sand and gravel in the mud-sand mixture will rebound a long distance and will fall from the inside of the partition 7 and be discharged from the machine, thereby separating the mud from the sand and gravel. Compared with the mud removal method using strip screening and the mud removal method using a vibrating screen, the advantage of this embodiment is that the screening performed according to the different rebound distances after the mud and sand and gravel are thrown out does not need to consider the problem of strip spacing causing stone waste or strip blocking of holes.

[0036] Embodiment 2:

[0037] This embodiment is carried out based on the previous embodiment. Figure 1 and Figure 3 As shown, an adjusting assembly 8 for adjusting the radial movement of the partition 7 is provided on the casing 2, which is used for horizontally adjusting the gap between the partition 7 and the inner wall of the casing 2, that is, the distance between the partition 7 and the casing 2 can be adjusted according to the different mixing conditions of stones and mud under actual working conditions; four partitions 7 are connected to the annular casing 2 at equal intervals, thereby ensuring that the throwing distance of the stone and mud mixture is smaller than the distance between the casing 2, thereby reducing the distance difference for the rebound of soil and sand and gravel. At the same time, the partitions 7 are provided in four groups, and the four groups of partitions 7 are arranged on the casing 2 along the circumferential direction of the casing 2, and each group of partitions 7 corresponds to an adjusting assembly 8, and the four groups of partitions 7 are distributed along the circumference of the casing 2, and one group of partitions 7 corresponds to one adjusting assembly 8. Among them, the adjustment component 8 includes a screw 21 and a nut threadedly matched with the screw 21, the screw 21 is welded to the partition 7, and the nut is rotatably connected to the casing 2. The screw 21 can be adjusted to move forward and backward on the nut by manually rotating the nut, and then the partition 7 on the screw 21 moves along the central axis of the screw 21, and then the distance between the partition 7 and the casing 2 is controlled. For example: by manually observing the separation of soil and sand after the four groups of partitions 7 are separated, the corresponding adjustment component 8 is adjusted to adjust the distance between the partitions 7 along the casing 2. In this way, it is possible to quickly understand whether the current distance between the partitions 7 along the casing 2 needs to be adjusted, and then it can be completed by rotating the nut, and its operation is more convenient.

[0038] Embodiment 3:

[0039] This embodiment is carried out based on the embodiment 1. Figure 1 , Figure 4 and Figure 5 As shown, a wear-resistant plate 9 is arranged on the inner wall of the casing 2 along its circumference, and the wear-resistant plate 9 includes a reinforcing plate 22, and the reinforcing plate 22 is connected to the casing 2 by fasteners, wherein the fasteners are bolts and nuts threadedly matched therewith, and a T-shaped liner 23 and a hanging plate for accommodating the T-shaped liner 23 are installed on the reinforcing plate, and the T-shaped liner 23 is clamped in a groove of the hanging plate, and the hanging plate is connected to the inner side of the reinforcing plate 22. The wear-resistant plate 9 is designed to thicken the thickness of the casing 2 to prevent the mud and sand mixture from colliding with the casing 2 and being damaged. After the wear-resistant plate 9 is installed, it has a protective effect on the casing 2, and the subsequent collision between the mud and sand mixture and the wear-resistant plate 9 Collision, no longer collides with the casing 2, secondly the wear-resistant plate 9 is composed of a reinforcement plate 22, a T-shaped lining plate 23 and a hanging plate, the hanging plate is connected to the reinforcement plate 22, the reinforcement plate 22 is installed on the casing 2 through fasteners, the T-shaped lining plate 23 is clamped in the groove of the hanging plate, and the subsequent mud and sand mixture collides with the T-shaped lining plate 23 in the wear-resistant plate 9. When the T-shaped lining plate 23 is damaged, the T-shaped lining plate 23 can be pushed upward out of the groove of the hanging plate to achieve the separation of the two, and the new T-shaped lining plate 23 can be inserted. Preferably, there is a gap between the inner wall of the casing 2 and the reinforcement plate 22 of the wear-resistant plate 9, which is used to reduce the medium transmission of noise emitted by the collision and play a certain noise reduction effect.

[0040] Embodiment 4:

[0041] This embodiment is carried out based on the embodiment 1. Figure 1 and Figure 2 As shown, the first drive component 19 includes a main shaft assembly 6 installed in the casing 2 and a first drive motor 18 installed at the bottom of the frame 10, the main shaft assembly 6 is connected to the casing 2 through a bracket, one end of the rotating shaft of the main shaft assembly 6 is connected to the rotating wheel 5, and the other end of the rotating shaft of the main shaft assembly 6 and the rotating shaft of the first drive motor 18 are both equipped with pulleys, and the pulley of the main shaft assembly 6 and the pulley of the first drive motor 18 are connected through a V-belt 17, wherein a specific drive component is designed to rotate the rotating wheel 5, and the driving method is that the first drive motor 18 is installed on the frame 10, and the other end of the rotating shaft of the main shaft assembly 6 and the rotating shaft of the first drive motor 18 are both equipped with pulleys, and then the latter pulley is connected through a V-belt 17 to realize its transmission.

[0042] Embodiment 5:

[0043] This embodiment is carried out based on the embodiment 1. Figure 1 and Figure 2As shown, a mixing assembly 16 is arranged on the frame 10, and the mixing assembly 16 includes a stirring tank 11, and the stirring tank 11 is connected to the frame 10 through a support frame, and the stirring tank 11 is rotatably connected to the support frame. A second driving assembly for driving the stirring tank 11 to rotate is also arranged on the support frame, and a receiving trough 13 is arranged on the support frame, and the feeding end of the receiving trough 13 is located below the discharge port of the stirring tank 11, and the discharge end of the receiving trough 13 is connected to the feeding end of the wear-resistant conduit 3, and the second driving assembly includes a second driving motor 14, and the second driving motor 14 is connected to the support frame, and a gear 15 is installed on the rotating shaft of the second driving motor 14, and the stirring tank 11 is provided with a The rack 12 meshed with the gear 15 is connected to the mixing tank 11, and the gear 15 is driven to rotate by the second drive motor 14, and the gear 15 is meshed with the rack 12 on the mixing tank 11, so when the gear 15 rotates, it drives the mixing tank 11 to rotate on the support frame, and the mud and sand mixture is manually put into this tank body, and the mud and sand are stirred and diluted through the water supply pipe to make the soil broken or softened, and then flow into the receiving trough 13 after mixing in the mixing tank 11. The receiving trough 13 is installed obliquely on the support frame, and the feeding end of the receiving trough 13 is located below the mixing tank 11, and the discharging end of the receiving trough 13 is located above the wear-resistant conduit 3. The mixed mud and sand flowing into the receiving trough 13 are automatically introduced into the wear-resistant conduit 3.

Claims

1. A centrifugal impact desilter, characterized in that: The invention comprises a frame (10), on which a screening assembly (1) is arranged, and the screening assembly (1) comprises a casing (2), the casing (2) being connected to the frame (10), a wear-resistant conduit (3) being arranged in the casing (2), a material distribution cone (4) being connected to the outlet of the wear-resistant conduit (3), a rotating wheel (5) being arranged on the material distribution cone (4), a first driving assembly (19) for driving the rotating wheel (5) to rotate being arranged below the casing (2), and a partition plate (7) connected to the inner wall of the casing (2) being arranged along its circumference, and a gap being formed between the partition plate (7) and the inner wall of the casing (2).

2. A centrifugal impact desilter according to claim 1, characterized in that: An adjustment component (8) for adjusting the radial movement of the partition plate (7) is arranged on the casing (2).

3. A centrifugal impact desilter according to claim 2, characterized in that: The casing (2) is annular, and the partitions (7) are connected to the annular casing (2) at equal intervals.

4. A centrifugal impact desilter according to claim 3, characterized in that: The partition plates (7) are provided in four groups, and the four groups of partition plates (7) are arranged on the casing (2) along the circumferential direction of the casing (2), and each group of partition plates (7) corresponds to an adjustment component (8).

5. A centrifugal impact desilter according to claim 3, characterized in that: A wear-resistant plate (9) is provided on the inner wall of the casing (2) along its circumference, and the wear-resistant plate (9) is connected to the casing (2).

6. A centrifugal impact desilter according to claim 5, characterized in that: The wear-resistant plate (9) comprises a reinforcing plate (22), the reinforcing plate (22) being connected to the casing (2) via fasteners, the reinforcing plate (22) being provided with a T-shaped liner (23) and a hanging plate for accommodating the T-shaped liner (23), the T-shaped liner (23) being clamped in a groove of the hanging plate, and the hanging plate being connected to the inner side surface of the reinforcing plate (22).

7. A centrifugal impact desilter according to claim 2, characterized in that: The adjustment assembly (8) comprises a screw rod (21) and a nut (20) threadably matched with the screw rod (21); the screw rod (21) is welded to the partition plate (7); and the nut (20) is rotatably connected to the casing (2).

8. The centrifugal impact desilter according to claim 1, characterized in that: The first driving component (19) comprises a main shaft assembly (6) installed in the casing (2) and a first driving motor (18) installed at the bottom of the frame (10); the main shaft assembly (6) is connected to the casing (2) through a bracket; one end of the rotating shaft of the main shaft assembly (6) is connected to the rotating wheel (5); the other end of the rotating shaft of the main shaft assembly (6) and the rotating shaft of the first driving motor (18) are both equipped with pulleys; the pulley of the main shaft assembly (6) is connected to the pulley of the first driving motor (18) through a V-belt (17).

9. The centrifugal impact desilter according to claim 1, characterized in that: A mixing assembly (16) is arranged on the frame (10), and the mixing assembly (16) comprises a stirring tank (11). The stirring tank (11) is connected to the frame (10) via a support frame, and the stirring tank (11) is rotatably connected to the support frame. A second driving assembly for driving the stirring tank (11) to rotate is also arranged on the support frame. A material receiving trough (13) is arranged on the support frame, and a feeding end of the material receiving trough (13) is located below a material discharge port of the stirring tank (11), and a material discharge end of the material receiving trough (13) is connected to a feeding end of the wear-resistant conduit (3).

10. A centrifugal impact desilter according to claim 9, characterized in that: The second driving assembly comprises a second driving motor (14), the second driving motor (14) is connected to the support frame, a gear (15) is mounted on the rotating shaft of the second driving motor (14), a rack (12) meshing with the gear (15) is arranged on the stirring tank (11), and the rack (12) is connected to the stirring tank (11).

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