Rotary sieve for salt screening

Abstract

This utility model relates to the technical field of salt sieving, and in particular to a rotary screen for salt sieving, comprising a rotating shaft and a screen. A support frame for supporting the screen is mounted on the rotating shaft. Multiple baffles are fixed on the support frame, and the baffles are arranged spirally along the circumference of the screen. The support frame is in close contact with the screen, and the baffles are in close contact with the support frame. A locking component is provided on the outside of the screen to fix the screen to the support frame. This utility model has the technical effect of improving sieving efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of salt sieving, and in particular to a rotary sieve for salt sieving. Background Technology

[0002] The rotary screen separates the dried semi-finished salt into particles smaller than 0.85mm and larger than 0.85mm. Particles smaller than 0.85mm are directly stored in silos, while those larger than 0.85mm are conveyed to the next process for further sieving. During operation, staff found that the actual contact surface of the existing rotary screen used for sieving is relatively small. Figure 1 The diagram shows a cross-sectional view of a rotary screen. The center of the screen is the rotating shaft 1, and a support frame 3 is fixed between the screen 2 and the rotating shaft 1. The effective screening surface of the screen 2 is the bottom part (the arc length corresponding to a in the diagram). The effective screening area of ​​the screen 2 is small, resulting in low screening efficiency. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the present invention provides a rotary sieve for salt screening.

[0004] The rotary sieve for salt sieving provided by this utility model adopts the following technical solution:

[0005] A rotary sieve for sieving salt includes a rotating shaft and a screen. A support frame for supporting the screen is installed on the rotating shaft. Multiple baffles are fixed on the support frame. The baffles are arranged in a spiral manner along the circumference of the screen. The support frame is in close contact with the screen, and the baffles are in close contact with the support frame. A locking component is provided on the outside of the screen to fix the screen to the support frame.

[0006] Optionally, the support frame includes support rings, axial support rods, and transverse ribs. Multiple support rings are evenly distributed along the length of the rotating shaft, and multiple axial support rods are distributed along the circumference of the support rings. The support rings are fixed to the axial support rods. Multiple connecting rods connect the rotating shaft and the support rings. Multiple circumferential ribs are provided between two adjacent support rings. Multiple transverse ribs are evenly distributed along the circumference of the support rings. The transverse ribs are fixed to the outer wall of the support rings. The circumferential ribs are fixed to the transverse ribs. Baffles are fixed to the transverse ribs and circumferential ribs.

[0007] Optionally, the locking assembly includes a first locking ring and a second locking ring, both of which are semi-circular, and the first locking ring and the second locking ring are fixed by bolts.

[0008] Optionally, two first mounting blocks are fixed on the inner wall of the support ring, and two second mounting blocks are fixed on the outer wall of the rotating shaft. One end of the connecting rod is located between the two first mounting blocks, and the other end of the connecting rod is located between the two second mounting blocks. A fixing component is provided on the first mounting block. The fixing component includes a fixing block, a plug rod, and a spring. The fixing block is fixed to the first mounting block. A receiving cavity is provided inside the fixing block. The spring is located in the receiving cavity. One end of the plug rod is located in the receiving cavity and is fixed with an abutment block. The other end of the plug rod passes through the fixing block. A first insertion hole is opened on the first mounting block, and a second insertion hole is opened on the connecting rod. The plug rod passes through the first insertion hole and is inserted into the second insertion hole. A lever is fixed on the end of the abutment block away from the plug rod. The end of the lever away from the abutment block passes through the fixing block. The spring is sleeved in the lever, and one end of the spring is fixed between the abutment block and the cavity wall of the receiving cavity.

[0009] Compared with the prior art, the present invention has the following technical effects:

[0010] The two adjacent baffles form a channel. When the rotary screen sieves the salt, it will divide the salt into different channels, increasing the sieve area and thus improving the sieve efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the prior art of this utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0013] Figure 3 This is a schematic diagram of the supporting frame in Embodiment 1 of this utility model;

[0014] Figure 4 This is a cross-sectional schematic diagram of the screen in Embodiment 1 of this utility model;

[0015] Figure 5 This is a schematic diagram of the support ring and connecting rod in Embodiment 2 of this utility model;

[0016] Figure 6 This is a schematic diagram of the fixing component in Embodiment 2 of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Rotating shaft; 2. Screen; 3. Support frame; 31. Support ring; 32. Axial support rod; 33. Connecting rod; 34. Horizontal rib; 35. Circumferential rib; 4. Baffle; 5. Locking assembly; 51. First locking ring; 52. Second locking ring; 53. Connecting block; 6. First mounting block; 61. Second mounting block; 7. Fixing assembly; 71. Fixing block; 72. Insert rod; 73. Spring; 74. Abutment block; 75. First insertion hole; 76. Second insertion hole; 77. Lever. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 2 - Appendix Figure 6 The present invention will be described in further detail below. Example

[0019] Reference Figure 2 , Figure 3 and Figure 4 This utility model discloses a rotary sieve for screening salt, including a rotating shaft 1 and a sieve 2. A support frame 3 is connected to the rotating shaft 1, and the sieve 2 is installed on the outside of the support frame 3. The support frame 3 includes support rings 31 and axial support rods 32. The length direction of the axial support rods 32 is consistent with the axial direction of the rotating shaft 1. Multiple support rings 31 are evenly distributed along the axial direction of the rotating shaft 1. Multiple axial support rods 32 are evenly distributed along the axial direction of the support rings 31, and the axial support rods 32 are fixedly connected to the support rings 31. A connecting rod 33 is fixed between the inner wall of the support rings 31 and the rotating shaft 1. The rotating shaft 1 drives the support frame 3 to rotate, and the support frame 3 drives the sieve 2 to rotate.

[0020] The supporting frame 3 also includes transverse ribs 34 and circumferential ribs 35. The length direction of the transverse ribs 34 is arranged along the axial direction of the rotating shaft 1. Multiple transverse ribs 34 are evenly distributed along the circumferential direction of the rotating shaft 1. Multiple circumferential ribs 35 are evenly distributed along the length direction of the transverse ribs 34. The transverse ribs 34 are fixed on the outer wall of the supporting ring 31. The transverse ribs 34 and the circumferential ribs 35 are fixedly connected.

[0021] The support frame 3 has multiple baffles 4 internally, which are spirally fixed to the support ring 31. The baffles 4 are welded and fixed to the transverse ribs 34 and circumferential ribs 35. The baffles 4 can be spirally wound multiple times on the inner wall of the support frame 3. Adjacent baffles 4 form channels. When the rotary sieve sieves salt, the baffles 4 distribute the salt into different channels, increasing the sieving area and thus improving sieving efficiency. Figure 4 As shown, the effective screening surface of screen 2 is arc length b.

[0022] The screen 2 is fitted onto the outside of the support frame 3. Multiple locking components 5 are provided on the outside of the screen 2, which fix the screen 2 to the support frame 3. The locking components 5 include a first locking ring 51 and a second locking ring 52, both of which are semi-circular rings. Connecting blocks 53 are fixed to both ends of the first and second locking rings 51 and 52, and the connecting blocks 53 of the first and second locking rings 51 and 52 are fixed together by bolts. Example

[0023] Reference Figure 5 and Figure 6The difference from Embodiment 1 lies in the connection method between the connecting rod 33, the support ring 31, and the rotating shaft 1. Two first mounting blocks 6 are fixed to the inner wall of the support ring 31, and two second mounting blocks 61 are fixed to the outer wall of the rotating shaft 1. One end of the connecting rod 33 is located between the two first mounting blocks 6, and the other end of the connecting rod 33 is located between the two second mounting blocks 61. A fixing component 7 is provided on one of the first mounting blocks 6, and the first mounting block 6 is connected to the connecting rod 33 through the fixing component 7. A fixing component 7 is also provided on the second mounting block 61, and the second mounting block 61 is also fixed to the connecting rod 33 through the fixing component 7.

[0024] The fixing component 7 includes a fixing block 71, a plug rod 72, and a spring 73. The fixing block 71 is fixed to the first mounting block 6. The fixing block 71 has an internal receiving cavity, and the spring 73 is located in the receiving cavity. One end of the plug rod 72 is located in the receiving cavity and is fixed to an abutment block 74. The other end of the plug rod 72 passes through the fixing block 71. The first mounting block 6 has a first insertion hole 75, and the connecting rod 33 has a second insertion hole 76. The plug rod 72 passes through the first insertion hole 75 and is inserted into the second insertion hole 76. A lever 77 is fixed to the end of the abutment block 74 away from the plug rod 72. The end of the lever 77 away from the abutment block 74 passes through the fixing block 71. The spring 73 is fitted in the lever 77. One end of the spring 73 is fixed to the abutment block 74, and the other end of the spring 73 is fixed to the cavity wall of the receiving cavity. The connecting rod 33 is detachable, making it easy to replace when damaged.

[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A rotary sieve for sieving of table salt, characterized in that: Includes a rotating shaft (1) and a screen (2). A support frame (3) is installed on the rotating shaft (1) to support the screen (2). Multiple baffles (4) are fixed on the support frame (3). The baffles (4) are arranged in a spiral manner along the circumference of the screen (2). The support frame (3) is close to the screen (2), and the baffles (4) are close to the support frame (3). A locking component (5) is provided on the outside of the screen (2) to fix the screen (2) to the support frame (3).

2. The rotary sieve for salt screening according to claim 1, characterized in that: The support frame (3) includes a support ring (31), an axial support rod (32), and a transverse rib (34). Multiple support rings (31) are evenly distributed along the length of the shaft (1), and multiple axial support rods (32) are distributed along the circumferential direction of the support ring (31). The support ring (31) is fixed to the axial support rod (32). Multiple connecting rods (33) are connected between the shaft (1) and the support ring (31). Multiple circumferential ribs (35) are provided between two adjacent support rings (31). Multiple transverse ribs (34) are evenly distributed along the circumferential direction of the support ring (31). The transverse ribs (34) are fixed on the outer wall of the support ring (31). The circumferential ribs (35) are fixed to the transverse ribs (34). The baffle (4) is fixed on the transverse ribs (34) and the circumferential ribs (35).

3. A rotary sieve for the sizing of salt according to claim 1 or 2, characterized in that: The locking assembly (5) includes a first locking ring (51) and a second locking ring (52), both of which are semi-circular, and the first locking ring (51) and the second locking ring (52) are fixed by bolts.

4. The rotary sieve for salt screening according to claim 2, characterized in that: Two first mounting blocks (6) are fixed on the inner wall of the support ring (31), and two second mounting blocks (61) are fixed on the outer wall of the rotating shaft (1). One end of the connecting rod (33) is located between the two first mounting blocks (6), and the other end of the connecting rod (33) is located between the two second mounting blocks (61). A fixing component (7) is provided on the first mounting block (6). The fixing component (7) includes a fixing block (71), a plug rod (72), and a spring (73). The fixing block (71) is fixed to the first mounting block (6). The fixing block (71) has a receiving cavity inside, and the spring (73) is located in the receiving cavity. One end of the plug rod (72) is located at... A retaining block (74) is fixed in the receiving cavity. The other end of the insert rod (72) passes through the fixing block (71). A first insertion hole (75) is opened on the first mounting block (6). A second insertion hole (76) is opened on the connecting rod (33). The insert rod (72) passes through the first insertion hole (75) and is inserted into the second insertion hole (76). A lever (77) is fixed at the end of the retaining block (74) away from the insert rod (72). The end of the lever (77) away from the retaining block (74) passes through the fixing block (71). A spring (73) is sleeved in the lever (77). One end of the spring (73) is fixed between the retaining block (74) and the cavity wall of the receiving cavity.

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