A separation device

Abstract

The present application relates to sand mill technical field, especially point to a kind of separating device, it includes separation structure one, separating cavity one, multiple separation groove one, separating structure two being set in separating cavity one, separating cavity two, separation groove two, separating channel being set through separating structure two and cover respectively cover in the two ends of separating cavity one and separating cavity two cover plate one and cover plate two, multiple separation groove one is communicated with separating cavity one respectively, separation groove two is communicated with separating cavity two by separating channel;The separation groove one and separating channel are staggered along the axial direction of separation structure one.Setting is described in the application, separating device can separate material and grinding medium in the barrel of sand mill, the precision and separation efficiency of material separation are high.When stopping, grinding medium will be accumulated at the inlet of separation groove two and block the inlet of separation groove two, avoid grinding medium through separating channel into separating cavity two and feed inlet, improve the separation efficiency of material and grinding medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sand mill, in particular to a separation device. BACKGROUND

[0002] The existing grinding machine or sand mill mainly comprises a rack, a barrel arranged on the rack, a driving main shaft inserted into the barrel, a grinding device arranged in the barrel and drivingly connected with the driving main shaft, a separation device rotatably arranged in the barrel, and a hollow discharge shaft drivingly connected with the separation device, and the separated material is discharged to the outside of the barrel through the hollow discharge shaft. The current separation device generally adopts a centrifugal separator. When the grinding machine is working, the separation device is driven to rotate at high speed by the hollow discharge shaft, and the material in the barrel is ground by the grinding device. Under the action of the pressure in the barrel or the pressure of the feeding pump, the smaller material overcomes the centrifugal force and is transported into the hollow discharge shaft through the separation groove of the separation device. However, the larger material and the grinding medium cannot overcome the centrifugal force, and thus return to the barrel under the action of the centrifugal force of the separation device to wait for grinding again. The separation effect of the existing separation device is poor, and the separation efficiency is low. The diameter of the separation groove of the separation device is greater than the diameter of the grinding medium. When the grinding machine is in a shutdown state, the grinding medium in the barrel can directly flow into the hollow discharge shaft through the separation groove. When the grinding machine is used next time, the grinding medium and the material flowing into the hollow discharge shaft cannot be separated, and the separation effect of the separation device is poor. Therefore, the defect is obvious, and a solution is urgently needed. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a separation device.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0005] A separation device comprises a separation structure one, a separation cavity one arranged along the axial direction of the separation structure one and penetrating the separation structure one, a plurality of separation grooves one formed by inwardly recessing the circumferential side wall of the separation structure one, a separation structure two arranged in the separation cavity one, a separation cavity two arranged along the axial direction of the separation structure two and penetrating the separation structure two, a separation groove two formed by inwardly recessing the circumferential side wall of the separation structure two, a separation channel arranged along the radial direction of the separation structure two and penetrating the separation structure two, and a cover plate one and a cover plate two respectively arranged at the two ends of the separation cavity one and the separation cavity two, wherein the plurality of separation grooves one are respectively communicated with the separation cavity one, and the separation groove two is communicated with the separation cavity two through the separation channel; and the separation groove one and the separation channel are arranged in a staggered manner along the axial direction of the separation structure one.

[0006] Further, the number of the separation groove two is set to be multiple, and the number of the separation channel is set to be multiple, and the plurality of separation grooves two and the plurality of separation channels are arranged one by one.

[0007] Further, the separation device further comprises a hollow rotating shaft penetrating through the cover plate and protruding into the second separation cavity, and a feeding port arranged on the hollow rotating shaft, and the inner cavity of the hollow rotating shaft is communicated with the second separation cavity through the feeding port; the hollow rotating shaft is connected with the first cover plate and / or the second cover plate.

[0008] Further, the inner side wall of the first separation cavity is tightly fitted with the outer side wall of the second separation structure.

[0009] Further, the feeding port and the separation channel are arranged in axial dislocation along the second separation structure.

[0010] Further, the first separation groove is distributed in the radial direction of the first separation structure in the form of an involute or a spiral.

[0011] Further, the second separation groove is distributed in the axial direction of the second separation structure in the form of a thread.

[0012] Further, the first separation structure and the second separation structure are both in the form of a hollow cylinder.

[0013] Further, the second cover plate is connected with the hollow rotating shaft, the first separation structure and the second separation structure through a plurality of locking members.

[0014] The separation device of the present application can separate the material and the grinding medium in the barrel of the sand mill, and the precision and efficiency of the material separation are high. When the sand mill is in a shutdown state, the grinding medium will be accumulated in the second separation groove near one end of the first separation groove, and the accumulated grinding medium two can block the inlet of the second separation groove. The separation channel and the first separation groove are arranged in staggered mode, which avoids the grinding medium entering into the second separation cavity and the feeding port through the separation channel, and further improves the separation efficiency of the material and the grinding medium. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the present application.

[0016] Figure 2 It is a full sectional view of the present application.

[0017] Figure 3 It is a sectional view of A-A in Figure 2

[0018] Figure 4 It is a perspective view of the second separation structure of the present application.

[0019] BRIEF DESCRIPTION OF DRAWINGS:

[0020] ​1. Separation structure 1; 2. Separation structure 2; 3. Separation tank 1; 4. Separation tank 2; 5. Separation chamber 1; 6. Separation chamber 2; 7. Separation channel; 8. Cover plate 1; 9. Cover plate 2; 10. Hollow shaft; 11. Feed port; 12. Inner cavity. DETAILED DESCRIPTION

[0021] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0022] like Figures 1 to 4 As shown, the present invention provides a separation device, which includes a separation structure 1, a separation chamber 5 arranged along the axial direction of the separation structure 1 and passing through the separation structure 1, a plurality of separation grooves 3 formed by the inward concave circumferential side wall of the separation structure 1, a separation structure 22 arranged in the separation chamber 5, a separation chamber 26 arranged along the axial direction of the separation structure 22 and passing through the separation structure 22, one or more separation grooves 24 formed by the inward concave circumferential side wall of the separation structure 22, one or more separation channels 7 respectively arranged along the radial direction of the separation structure 22 and a cover plate 18 and a cover plate 29 respectively covering the two ends of the separation chamber 15 and the separation chamber 26, the plurality of separation grooves 3 are respectively connected with the separation chamber 5, the plurality of separation grooves 24 are arranged in a one-to-one correspondence with the plurality of separation channels 7, and the discharge ports of the plurality of separation grooves 4 are respectively connected with the separation chamber 26 via the plurality of separation channels 7; the separation grooves 3 and the separation channels 7 are staggered along the axial direction of the separation structure 1.

[0023] Specifically, the cover plate one 8 is used for sealing one end opening of the separation cavity one 5 and the separation cavity two 6, and the cover plate two 9 is used for sealing the other end opening of the separation cavity one 5 and the separation cavity two 6; the separation device further comprises a hollow rotating shaft 10 penetrating through the cover plate one 8 and protruding into the separation cavity two 6, and a feeding port 11 arranged on the hollow rotating shaft 10; an inner cavity 12 of the hollow rotating shaft 10 communicates with the separation cavity two 6 through the feeding port 11; the hollow rotating shaft 10 is fixedly connected with the cover plate one 8 or / and the cover plate two 9; the feeding port of the separation groove two 4 communicates with the discharging port of the separation groove one 3 through the separation cavity one 5. In actual use, the separation device is arranged in the barrel of the sand mill; when the sand mill is running, the hollow rotating shaft 10, the cover plate one 8, the cover plate two 9, the separation structure one 1 and the separation structure two 2 are driven by the driving mechanism to rotate in the barrel of the sand mill; when the separation structure one 1 and the separation structure two 2 rotate, a large centrifugal force is generated; the centrifugal force generated by the larger material and the grinding medium is larger; the centrifugal force can overcome the pressure in the barrel of the sand mill or the pressure of the feeding pump; therefore, the centrifugal force can drive the larger material and the grinding medium to move away from the separation device, so that the material that is not fully ground and the grinding medium can be effectively prevented from entering the separation cavity one 5 through the separation groove one 3; the centrifugal force generated by the smaller material that is fully ground is smaller; the centrifugal force cannot overcome the pressure in the barrel of the sand mill or the pressure of the feeding pump; therefore, the smaller material that is fully ground can overcome the centrifugal force under the action of the pressure in the barrel of the sand mill or the pressure of the feeding pump, and enter the separation cavity one 5 through the separation groove one 3, and then is conveyed to the feeding port 11 along the separation groove two 4, and finally is conveyed to the outside of the barrel of the sand mill through the inner cavity 12, so that the separation of the material and the grinding medium is realized. In addition, when the sand mill is in a shutdown state, the driving mechanism stops, and the hollow rotating shaft 10, the separation structure one 1 and the separation structure two 2 stop rotating; since the material and the grinding aid in the barrel of the sand mill are in a fluid state, the material and the grinding aid can flow into the separation groove one 3, the separation cavity one 5, the separation groove two 4, the separation channel 7 and the separation cavity two 6 in sequence, or even flow into the feeding port 11 from the separation cavity two 6; since the grinding medium is a solid particle and its weight is relatively heavy, the grinding medium in the barrel of the sand mill is deposited in the barrel of the sand mill; under the action of its own gravity or the pushing action of the material and the grinding aid, the grinding medium can enter the separation groove two 4 through the separation groove one 3 and the separation cavity one 5 in sequence; the flowability of the solid-state grinding medium is poor, the grinding medium is accumulated at the feeding port of the separation groove two 4, and the accumulated grinding medium can block the feeding port of the separation groove two 4; the separation groove two 4, the separation channel 7 and the separation groove one 3 are staggered, and the accumulated grinding medium in the feeding port of the separation groove two 4 is difficult to enter the separation channel 7 through the discharging port of the separation groove two 4, so that the grinding medium is prevented from entering the separation cavity two 6 and the feeding port 11.When the sand mill is used next time, the grinding medium accumulated in the separation groove one 3 and the separation groove two 4 can be easily thrown out of the separation device under the action of centrifugal force, further improving the separation efficiency of the material and the grinding medium.

[0024] Further, the inner side wall of the separation cavity one 5 is tightly fitted with the outer side wall of the separation structure two 2.

[0025] In actual use, the inner side wall of the separation cavity one 5 is tightly fitted with the outer side wall of the separation structure two 2, and since the inlet of the separation groove one 3 and the separation groove two 4 is away from the separation channel 7, the grinding medium or material entering the separation cavity one 5 through the separation groove one 3 can only enter the inside of the separation groove two 4 from the inlet of the separation groove two 4, and then enter the separation channel 7 from the outlet of the separation groove two 4. The grinding medium in the shutdown state is accumulated in the inlet of the separation groove one 3 and the separation groove two 4, and the grinding medium cannot enter the separation channel 7, which is beneficial to the rapid and accurate separation of the grinding medium and the material under the action of centrifugal force.

[0026] Further, the inlet 11 and the separation channel 7 are arranged in axial offset along the separation structure two 2.

[0027] Preferably, the number of the inlet 11 is set to be multiple, and multiple inlets 11 are arranged at one end of the hollow shaft 10 close to the separation groove one 3, and the separation channel 7 is arranged at one end of the separation structure two 2 away from the separation groove one 3. The grinding medium entering the separation cavity two 6 through the separation structure two 2 will not directly enter the inlet 11, and the rotating hollow shaft 10 can centrifugally separate the grinding medium in the separation cavity two 6 again, improving the separation efficiency of the separation device.

[0028] Further, the length of the separation groove one 3 is less than half of the length of the separation structure one 1.

[0029] Specifically, the separation groove one 3 is arranged at one end of the separation structure one 1 close to the cover plate two 9. In the shutdown state of the sand mill, the grinding medium flows from the separation groove one 3 into the separation groove two 4, and by limiting the length of the separation groove one 3, the length of the separation groove one 3 and the separation groove two 4 overlapping along the axial direction of the separation structure two 2 is limited, and further the grinding medium can only be accumulated at the inlet of the separation groove two 4, facilitating the separation of the material and the grinding medium.

[0030] Further, the separation groove one 3 is distributed in the shape of involute or spiral along the radial direction of the separation structure one 1.

[0031] Specifically, the separation groove two 4 is threadedly distributed along the axial direction of the separation structure two 2. In actual use, the separation groove one 3 is arranged in an involute shape or a spiral shape, and the separation groove two 4 is arranged in a thread shape, so that the material and the grinding medium flow or separate more smoothly and continuously in the separation groove one 3 or the separation groove two 4, the stability of the separation device during separation is improved, and the material and the grinding medium form a vortex in the separation groove one 3 and the separation groove two 4, a strong centrifugal force is generated, so that the large material and the grinding medium are thrown out, and the separation efficiency is improved.

[0032] Further, the separation structure one 1 and the separation structure two 2 are both in a hollow cylindrical shape.

[0033] Specifically, the cover plate two 9 is connected with the hollow rotating shaft 10, the separation structure one 1 and the separation structure two 2 respectively through a plurality of locking members (screws or bolts, etc.). In actual use, the separation structure one 1 and the separation structure two 2 have simple structures and are convenient to produce and process. The separation structure one 1 and the separation structure two 2 are firmly connected with the hollow rotating shaft 10 through the cover plate two 9, and the synchronization of the separation structure one 1 and the separation structure two 2 when driven to rotate by the hollow rotating shaft 10 is good, and the cover plate two 9 and the cover plate one 8 can also seal the two end openings of the separation cavity one 5 and the separation cavity two 6 respectively, and the cover plate two 9 and the cover plate one 8 have strong practicability.

[0034] All the technical features in the embodiment can be freely combined according to actual needs.

[0035] The above embodiment is a preferred implementation scheme of the present application, and in addition, the present application can be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the present application.

Claims

1. A separating device, characterized by: The separation device comprises a separation structure one (1), a separation cavity one (5) penetrating the separation structure one (1) along the axial direction of the separation structure one (1), a plurality of separation grooves one (3) formed by inwardly recessing the circumferential side wall of the separation structure one (1), a separation structure two (2) arranged in the separation cavity one (5), a separation cavity two (6) penetrating the separation structure two (2) along the axial direction of the separation structure two (2), a separation groove two (4) formed by inwardly recessing the circumferential side wall of the separation structure two (2), a separation channel (7) penetrating the separation structure two (2) along the radial direction of the separation structure two (2), and cover plates one (8) and two (9) respectively arranged at the two ends of the separation cavity one (5) and the separation cavity two (6), wherein the plurality of separation grooves one (3) are in communication with the separation cavity one (5), the separation groove two (4) is in communication with the separation cavity two (6) through the separation channel (7), the separation groove one (3) and the separation channel (7) are arranged in a staggered manner along the axial direction of the separation structure one (1), the separation device further comprises a hollow rotating shaft (10) penetrating the cover plate one (8) and protruding into the separation cavity two (6), and a feed inlet (11) arranged on the hollow rotating shaft (10), wherein the inner cavity (12) of the hollow rotating shaft (10) is in communication with the separation cavity two (6) through the feed inlet (11), and the hollow rotating shaft (10) is connected with the cover plate one (8) and / or the cover plate two (9).

2. A separation device according to claim 1, characterized in that: The number of the separation groove two (4) is set to be multiple, and the number of the separation channel (7) is set to be multiple, and the plurality of separation groove two (4) and the plurality of separation channel (7) are arranged one by one.

3. A separation device according to claim 1, characterized in that: The inner side wall of the separation cavity one (5) is tightly attached to the outer side wall of the separation structure two (2).

4. The separation device of claim 1, wherein: The feed inlet (11) and the separation channel (7) are arranged in a staggered manner along the axial direction of the separation structure two (2).

5. A separation device according to any one of claims 1-4, characterized in that: The separation groove one (3) is distributed in a gradual curve or spiral shape along the radial direction of the separation structure one (1).

6. A separation device according to any one of claims 1 to 4, wherein: The separation groove two (4) is distributed in a thread shape along the axial direction of the separation structure two (2).

7. A separation device according to any one of claims 1 to 4, wherein: The separation structure one (1) and the separation structure two (2) are both hollow cylindrical.

8. The separation device of claim 1, wherein: The cover plate two (9) is connected with the hollow rotating shaft (10), the separation structure one (1) and the separation structure two (2) through a plurality of locking members.

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