Cold air bed for crude salt production

Abstract

The invention relates to the technical field of crude salt production, in particular to a cold air bed for crude salt production, which comprises an upper box body and a lower box body connected below the upper box body, a feeding hopper is mounted on the side wall of one end of the upper box body, a first discharging pipe is fixed at one end, far away from the feeding hopper, of the upper box body, a sieve plate is arranged in the upper box body, and one side, close to the feeding hopper, of the sieve plate is high. The side, close to the first discharging pipe, of the sieve plate is low, a material receiving plate is arranged below the sieve plate, a second discharging pipe fixed to the side wall of the lower box body is arranged below the first discharging pipe, crude salt enters the upper box body from the feeding hopper, and the crude salt with large particles slides down along the sieve plate and is discharged from the first discharging pipe; and crude salt with small particles falls onto the material receiving plate and is finally discharged from the second discharging pipe, and a vibration motor is fixed to the side wall of the lower box body. The technical effects that the screening efficiency of the first rotary screen is improved, and the production efficiency of crude salt is improved are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of raw salt production, in particular to a cold air bed for raw salt production. Background Art

[0002] In the process of raw salt production, after the raw salt is crushed, washed and centrifuged, it enters the fluidized bed for drying, and then enters the cold air bed for cooling. After cooling, it is transported to the first-stage rotary screen through the hopper elevator for particle size screening. The screened powder crystal salt and granular salt are color-sorted respectively. The first-stage rotary screen needs to screen all the raw salt that passes through the cold air bed. The screening efficiency of the No. 1 rotary screen is low and the screening pressure is high. Summary of the invention

[0003] The embodiment of the present invention provides a cold air bed for raw salt production, which improves the screening efficiency of the No. 1 rotary screen and has the technical effect of improving the production efficiency of raw salt.

[0004] A cold air bed for raw salt production adopts the following technical scheme: A cold air bed for raw salt production comprises an upper box body and a lower box body connected to the lower part of the upper box body, an upper hopper is installed on the side wall at one end of the upper box body, a first discharge pipe is fixed to the end of the upper box body away from the upper hopper, a sieve plate is arranged in the upper box body, the sieve plate is higher on the side close to the upper hopper and lower on the side close to the first discharge pipe, a receiving plate is arranged below the sieve plate, a second discharge pipe is arranged below the first discharge pipe and is fixed to the side wall of the lower box body, raw salt enters the upper box body from the upper hopper, raw salt with larger particles slides along the sieve plate and is discharged from the first discharge pipe, raw salt with smaller particles falls onto the receiving plate and is finally discharged from the second discharge pipe, and a vibration motor is fixed to the side wall of the lower box body.

[0005] Furthermore, a crushing assembly for crushing agglomerated raw salt is provided on one side of the screen plate close to the first discharge pipe.

[0006] Furthermore, the crushing assembly includes a pressure plate, a spring and a guide rod. The pressure plate is located above the screen plate, the spring is fixed between the pressure plate and the screen plate, the top of the guide rod is fixed to the pressure plate, the guide rod passes through the screen plate, and the spring is sleeved on the guide rod.

[0007] Furthermore, reinforcing ribs for supporting the sieve plate are fixed on the inner wall of the upper box body, and the reinforcing ribs are fixed on the bottom of the sieve plate.

[0008] Furthermore, the distance between the pressing plate and the sieve plate becomes smaller and smaller along the conveying direction of the raw salt.

[0009] Furthermore, an air inlet duct is fixed on the side wall of the lower box body, an air outlet duct is fixed on the top of the upper box body, and an inspection door is installed on the side wall of the upper box body.

[0010] Furthermore, a support leg is provided at the bottom of the lower box body, a connecting plate is fixed on the side wall of the lower box body, a buffer column is fixed between the top of the support leg and the connecting plate, and a connecting rod is fixed between two adjacent support legs.

[0011] Compared with the prior art, the present invention has the following technical effects: By setting the sieve plate, the raw salt with a particle size greater than 2.0mm is screened out in the cold air bed, and the screened raw salt with a particle size greater than 2.0mm directly enters the color sorter for color sorting, and does not need to be screened through the first-stage rotary screen, thereby alleviating the screening pressure of the No. 1 rotary screen. By setting the crushing component, the agglomerated raw salt can be crushed, so that the cold air bed has a cooling, screening, and crushing device integrated, which improves the production efficiency of raw salt. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. In the drawings: Figure 1 A schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the upper box body and the lower box body in the present invention; Figure 3 A schematic diagram of a crushing assembly in the present invention; Figure 4 A schematic diagram showing the reinforcing ribs in the present invention; Figure 5 It is a schematic diagram of a material receiving plate in the present invention.

[0013] Explanation of the reference numerals in the accompanying drawings: 1. Upper box body; 11. Inspection door; 12. Upper hopper; 13. First discharge hole; 14. First discharge pipe; 15. Air outlet pipe; 2. Lower box body; 21. Vibration motor; 22. Second discharge hole; 23. Second discharge pipe; 24. Air inlet pipe; 3. Screen plate; 4. Bracket; 41. Leg; 42. Connecting plate; 43. Buffer column; 44. Connecting rod; 5. Receiving plate; 6. Crushing assembly; 61. Pressing plate; 62. Spring; 63. Guide rod; 7. Reinforcing rib. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0015] Reference Figure 1-Figure 5A cold air bed for raw salt production includes an upper box body 1 and a lower box body 2, the upper box body 1 and the lower box body 2 are internally connected, and the upper box body 1 and the lower box body 2 are fixed by bolts. A sieve plate 3 is arranged inside the upper box body 1, and the sieve plate 3 can screen out raw salt with a particle size of more than 2.0 mm. A bracket 4 is installed at the bottom of the lower box body 2, and the bracket 4 supports the lower box body 2. The bracket 4 includes a support leg 41, a connecting plate 42 and a buffer column 43, the connecting plate 42 is fixed on the side wall of the lower box body 2, the buffer column 43 is fixed between the connecting plate 42 and the support leg 41, and a connecting rod 44 is fixed between two adjacent support legs 41. A vibration motor 21 is fixed on the side wall of the lower box body 2. An inspection door 11 is installed on the side wall of the upper box body 1.

[0016] The sieve plate 3 is fixed to the inner wall of the upper box body 1, an upper hopper 12 is fixed to the outer wall of one end of the upper box body 1, a first discharge hole 13 is opened on the outer wall of the upper box body away from the upper hopper 12, and a first discharge pipe 14 is fixed to the outer wall of the upper box body 1 away from the upper hopper 12. The sieve plate 3 is arranged obliquely, the side of the sieve plate 3 close to the upper hopper 12 is high, and the side of the sieve plate 3 close to the first discharge pipe 14 is low. The raw salt on the sieve plate 3 enters the first discharge pipe 14 through the first discharge hole 13. The raw salt enters the upper box body 1 from the upper hopper 12, slides from the sieve plate 3, and finally the raw salt with a particle size greater than 2.0 mm is discharged from the first discharge pipe 14.

[0017] A receiving plate 5 is provided below the sieve plate 3. The receiving plate 5 is a fish scale plate. The raw salt falling from the mesh of the sieve plate 3 falls onto the receiving plate 5. A second discharge hole 22 is provided on the outer wall of the lower box body 2. A second discharge pipe 23 is fixed on the outer wall of the lower box body 2. The second discharge pipe 23 is located below the first discharge pipe 14. The second discharge pipe 23 corresponds to the second discharge hole 22. Raw salt with a particle size less than 2.0 mm falls onto the receiving plate 5, slides from the height of the receiving plate 5 to the ground, and is finally discharged from the second discharge pipe 23 through the second discharge hole 22.

[0018] A crushing assembly 6 is provided on one side of the sieve plate 3 near the first discharge hole 13, and the crushing assembly 6 can crush the agglomerated raw salt. The crushing assembly 6 includes a pressing plate 61, a spring 62 and a guide rod 63, the pressing plate 61 is located above the sieve plate 3, and two springs 62 are fixed between the pressing plate 61 and the sieve plate 3. The guide rod 63 is fixed at the bottom of the pressing plate 61, and the spring 62 is sleeved on the guide rod 63, and the guide rod 63 passes through the sieve plate 3. The distance between the pressing plate 61 and the sieve plate 3 becomes smaller and smaller along the material conveying direction. Under the action of the vibration motor 21, the pressing plate 61 will shake up and down along the axial direction of the guide rod 63. The agglomerated raw salt slides from the sieve plate 3 to between the pressing plate 61 and the sieve plate 3, and as the pressing plate 61 moves, the agglomerated raw salt is crushed between the pressing plate 61 and the sieve plate 3. After crushing, it is discharged from the first discharge pipe 14.

[0019] In order to increase the stability of the sieve plate 3, a reinforcing rib 7 is provided below the sieve plate 3, the reinforcing rib 7 is fixed below the sieve plate 3, the side wall of the reinforcing rib 7 is fixed to the side wall of the upper box body 1, and two reinforcing ribs 7 are provided, one reinforcing rib 7 corresponds to one guide rod 63, and the guide rod 63 passes through the sieve plate 3 and then penetrates the reinforcing rib 7. A plurality of air inlet pipes 24 are fixed on the side wall of the lower box body 2, and a plurality of air outlet pipes 15 are fixed on the top of the upper box body 1. Cold air enters the lower box body 2 from the air inlet pipe 24, passes through the material receiving plate 5 and the sieve plate 3, cools the raw salt, and is finally discharged from the air outlet pipe 15.

[0020] The implementation principle of the cold air bed for raw salt production of the present invention is as follows: raw salt enters the upper box body 1 from the upper hopper 12, the raw salt slides from the sieve plate 3 to the direction of the first discharge pipe 14, the particles with a particle size greater than 2.0 mm slide from the sieve plate 3 to the first discharge pipe 14, the particles with a particle size less than 2.0 mm fall from the sieve plate 3 to the receiving plate 5, the cold air enters the lower box body 2 from the air inlet pipe 24, and the cold air passes through the receiving plate 5 and the sieve plate 3 to cool the raw salt. After the agglomerated raw salt slides between the pressing plate 61 and the sieve plate 3, the agglomerates are broken with the vibration of the vibration motor 21.

[0021] By setting the sieve plate 3, the raw salt with a particle size greater than 2.0 mm is screened out in the cold air bed, and the screened raw salt with a particle size greater than 2.0 mm directly enters the color sorter for color sorting, and does not need to be screened through the first-stage rotary screen, thereby alleviating the screening pressure of the first rotary screen. By setting the crushing component 6, the agglomerated raw salt can be crushed, so that the cold air bed has a cooling, screening, and crushing device integrated, thereby improving the production efficiency of raw salt.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A cold air bed for raw salt production, characterized in that: The invention comprises an upper box body (1) and a lower box body (2) connected to the lower part of the upper box body (1), an upper hopper (12) being mounted on a side wall at one end of the upper box body (1), a first discharge pipe (14) being fixed to the end of the upper box body (1) away from the upper hopper (12), a sieve plate (3) being arranged in the upper box body (1), a side of the sieve plate (3) close to the upper hopper (12) being higher, and a side of the sieve plate (3) close to the first discharge pipe (14) being lower, and a A receiving plate (5) is provided below the first feeding pipe (14), and a second feeding pipe (23) is fixed to the side wall of the lower box body (2). Raw salt enters the upper box body (1) from the upper hopper (12), raw salt with larger particles slides along the sieve plate (3) and is discharged from the first feeding pipe (14), raw salt with smaller particles falls onto the receiving plate (5) and is finally discharged from the second feeding pipe (23), and a vibration motor (21) is fixed to the side wall of the lower box body (2).

2. The cold air bed for raw salt production according to claim 1, characterized in that: A crushing assembly (6) for crushing agglomerated raw salt is provided on one side of the screen plate (3) close to the first discharge pipe (14).

3. The cold air bed for raw salt production according to claim 2, characterized in that: The crushing assembly (6) comprises a pressure plate (61), a spring (62) and a guide rod (63); the pressure plate (61) is located above the screen plate (3); the spring (62) is fixed between the pressure plate (61) and the screen plate (3); the top of the guide rod (63) is fixed to the pressure plate (61); the guide rod (63) passes through the screen plate (3); and the spring (62) is sleeved on the guide rod (63).

4. The cold air bed for raw salt production according to claim 2 or 3, characterized in that: A reinforcing rib (7) for supporting the sieve plate (3) is fixed on the inner wall of the upper box body (1), and the reinforcing rib (7) is fixed on the bottom of the sieve plate (3).

5. The cold air bed for raw salt production according to claim 3, characterized in that: The distance between the pressing plate (61) and the sieve plate (3) becomes smaller and smaller along the conveying direction of the raw salt.

6. The cold air bed for raw salt production according to claim 1, characterized in that: An air inlet pipe (24) is fixed on the side wall of the lower box body (2), an air outlet pipe (15) is fixed on the top of the upper box body (1), and an inspection door (11) is installed on the side wall of the upper box body (1).

7. The cold air bed for raw salt production according to claim 1, characterized in that: A support leg (41) is provided at the bottom of the lower box body (2), a connecting plate (42) is fixed on the side wall of the lower box body (2), a buffer column (43) is fixed between the top of the support leg (41) and the connecting plate (42), and a connecting rod (44) is fixed between two adjacent support legs (41).

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