Drying device for vacuum salt production

Abstract

The utility model discloses a drying device for vacuum salt manufacturing, and relates to the technical field of salt drying, the drying device comprises a stirring barrel and a guide structure, an extension barrel is welded to the outer wall of the bottom of the stirring barrel, a stirring outer barrel is arranged at the center of the inner side of the stirring barrel, and a spiral stirring shaft is connected to the interior of the stirring outer barrel; the guide structure comprises a collecting seat, a plurality of collecting grooves are formed in the collecting seat, a supporting inner cylinder is arranged on the inner side of the collecting seat, and a plurality of air outlet grooves are formed in the supporting inner cylinder; the technical key points are as follows: a rotating collecting seat continuously enters the space between an assembly sleeve and a supporting inner cylinder by virtue of a plurality of collecting grooves, strides over the top of the supporting inner cylinder and enters the inner side of the supporting inner cylinder, and under the influence of a rotating spiral stirring shaft, the salt continuously turns towards the top from the inner side of the supporting inner cylinder; and the salt falls to the bottom under the influence of gravity, so that the evaporated water vapor is discharged to the top through a plurality of air outlet grooves, and the dried salt can be discharged from the interior of the supporting inner cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of salt drying, in particular to a drying device for vacuum salt production. Background Technique

[0002] Vacuum salt production refers to the evaporation of brine in an evaporation tank group under different "vacuum" states. Due to the pressure drop difference between each tank, a decreasing boiling point is formed, so that heat is transferred in sequence, and "secondary steam" can be utilized multiple times, which is a modern salt production method. This method has the advantages of high mechanization and automation levels, low heat energy consumption, and low production cost. The entire vacuum salt production process is divided into four major processes: brine treatment, evaporation and salt production, dehydration and drying, and packaging and storage.

[0003] The dehydration and drying process in salt production mainly further removes the moisture in the salt obtained by evaporation to obtain salt particles to meet the subsequent use requirements. The dehydration and drying of salt are generally completed by heating or introducing hot air. However, with the innovation of technology, it is becoming more and more common to optimize the drying process and improve the drying efficiency by means of special methods or equipment.

[0004] A drying device for high-purity phosphate disclosed in the patent document with the publication number of CN115540538B absorbs and purifies the gas at the upper end of the stirring barrel, then heats and introduces it into the annular cavity, thereby driving the stirring paddle, inner cylinder, and outer cylinder to be heated, and then heating and drying the phosphate. At the same time, the dry gas discharged from the stirring paddle will further dry the phosphate, and the mutual cooperation of the two drying methods improves the drying efficiency of the phosphate in the stirring barrel.

[0005] However, through research, it is found that the existing drying device has certain drawbacks when in use:

[0006] The drying device adopts the form of cooperation between the inner cylinder and the outer cylinder. During the process of heating and drying salt, the evaporated part in the salt is absorbed and purified to assist the heating work, thereby improving the drying efficiency. However, in the actual process, due to the stirring work, the salt in the system is in a quantitative state, which is not conducive to the discharged dried salt from the system and the input of the salt to be dried into the system. It is easily affected by the waiting time for the discharged dried salt and the input of the salt to be dried, resulting in an increase in the overall time for salt drying. Summary of the Invention

[0007] To overcome the deficiencies of the prior art, an embodiment of the present application provides a drying device for vacuum salt production. By arranging a collection seat at the bottom inside the stirring barrel, the rotating collection seat, with the aid of a plurality of collection grooves processed inside it, enables the salt being dried inside the stirring barrel to continuously enter the inside of the collection grooves, and cross over the top of the support inner cylinder between the fitting sleeve and the support inner cylinder, thereby entering the inside of the support inner cylinder. At this time, affected by the rotating spiral stirring shaft, the salt continuously flips upward inside the support inner cylinder and falls downward under the influence of gravity, achieving the technical effect that the evaporated water vapor is discharged into the inside of a plurality of outlet pipes through a plurality of air outlet grooves at the inner wall of the support inner cylinder, without being affected by the continuous release of the dried salt to the bottom.

[0008] The technical solution adopted by the embodiment of the present application to solve its technical problems is as follows:

[0009] A drying device for vacuum salt production, comprising a stirring barrel and a guiding structure. The guiding structure is arranged at the bottom inside the stirring barrel. An extension cylinder is welded to the outer wall of the bottom of the stirring barrel. A stirring outer cylinder is arranged at the center inside the stirring barrel. A spiral stirring shaft is rotatably connected inside the stirring outer cylinder; the guiding structure includes a collection seat, and a plurality of collection grooves are processed inside the collection seat. The plurality of collection grooves are equally spaced around the center of the collection seat. A support inner cylinder is arranged inside the collection seat. A plurality of air outlet grooves are processed inside the support inner cylinder. The spiral stirring shaft is coaxially arranged with the support inner cylinder.

[0010] Preferably, the arrangement of the plurality of collection grooves around the center of the collection seat is in a fan shape. A fitting sleeve is processed on the top surface of the collection seat. The fitting sleeve is sleeved inside one end of the stirring outer cylinder and is assembled and fixed by bolts. The fitting sleeve rotates with the stirring outer cylinder, thereby driving the collection seat to introduce the salt dried inside the stirring barrel through the stirring outer cylinder between the fitting sleeve and the support inner cylinder and fall into the inside of the spiral stirring shaft from the top of the support inner cylinder.

[0011] Preferably, a support sleeve is processed inside the collection seat. The support sleeve is sleeved outside the support inner cylinder. The spiral stirring shaft rotates inside the support inner cylinder, pushing the dried salt upward.

[0012] Preferably, one end of each of the plurality of air outlet grooves is bent, and this end extends into the inside of the support inner cylinder and is in communication with it.

[0013] Preferably, a plurality of outlet pipes are processed on the top of the support inner cylinder. The number of the plurality of outlet pipes is an even number and they are equally spaced around the center of the support inner cylinder. The plurality of air outlet grooves are combined in pairs, and the heights of one ends of the air outlet grooves in different groups are different. The tops of the plurality of air outlet grooves are respectively connected to the inside of the plurality of outlet pipes.

[0014] Preferably, one end of the support inner cylinder is provided with a sealing plate, the top of the sealing plate is slidably connected with a control plate, one end of the spiral stirring shaft is processed with a guiding seat, a centralized strip groove is opened inside one side of the guiding seat, a release hole is processed at the center of the control plate, the support inner cylinder is sleeved inside the extension cylinder, the sealing plate is fixedly assembled with the flange on the support inner cylinder and the flange on the extension cylinder through bolts, and the top surface of the control plate is attached to the bottom surface of the guiding seat.

[0015] Preferably, a control rod is processed on the bottom surface of one end of the control plate, a sliding groove is processed on the bottom of the sealing plate, and the control rod controls the control plate to slide inside the sealing plate to change the distance between the release hole and the center of the spiral stirring shaft.

[0016] Preferably, the top surface of the guiding seat is processed into an inclined surface, and the centralized strip groove is located at the bottom of the inclined surface on the guiding seat.

[0017] In summary, the utility model includes at least one of the following beneficial technical effects:

[0018] First, a drying device for vacuum salt production in the utility model is provided with a collecting seat at the bottom inside the stirring barrel. The rotating collecting seat makes use of a plurality of collecting grooves processed inside it, enabling the salt being dried inside the stirring barrel to continuously enter the inside of the collecting grooves, cross over the top of the support inner cylinder between the assembled sleeve pipe and the support inner cylinder, and thus enter the inside of the support inner cylinder. At this time, affected by the rotating spiral stirring shaft, the salt continuously flips upward inside the support inner cylinder and drops downward under the influence of gravity. The evaporated water vapor can be discharged into a plurality of air outlet pipes through a plurality of air outlet grooves on the inner wall of the support inner cylinder. The drying effect is good, which is conducive to the continuous release of the dried salt to the bottom, and is beneficial to saving the overall time spent on the drying process.

[0019] Second, a drying device for vacuum salt production in the utility model processes a guiding seat with a centralized strip groove inside at one end of the spiral stirring shaft, and rotates a sealing plate with a control plate inside at one end of the support inner cylinder. By means of the position of the control plate inside the sealing plate, the communication state between the release hole in the control plate and the centralized strip groove and the sliding groove is controlled, so as to control the time interval for the dried salt to be released from the centralized strip groove, the release hole and the sliding groove to the bottom, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the external structure schematic diagram of the utility model;

[0021] Figure 2 is the temporal structure schematic diagram of the utility model;

[0022] Figure 3 is the cross-sectional view of the collecting seat of the utility model;

[0023] Figure 4 is an enlarged view of the structure at position A in the present utility model; Figure 3 in the present utility model;

[0024] Figure 5 is a cross-sectional view of the sealing plate, release hole and guide seat of the present utility model.

[0025] Reference numerals: 1, stirring barrel; 2, extension barrel; 3, collection seat; 4, support inner barrel; 5, fitting sleeve; 6, air outlet pipe; 7, spiral stirring shaft; 8, sealing plate; 9, stirring outer barrel; 10, collection groove; 11, support sleeve; 12, air outlet groove; 13, centralized strip groove; 14, guide seat; 15, control board; 16, control rod; 17, sliding groove; 18, release hole. Detailed implementation manners

[0026] Embodiment 1:

[0027] A drying device for vacuum salt production, as Figures 1-5 shown, includes a stirring barrel 1 and a guiding structure arranged at the inner bottom of the stirring barrel 1. An extension barrel 2 is welded to the outer wall of the bottom of the stirring barrel 1. A stirring outer barrel 9 is arranged at the center inside the stirring barrel 1. A spiral stirring shaft 7 is rotatably connected inside the stirring outer barrel 9; the guiding structure includes a collection seat 3. A plurality of collection grooves 10 are processed inside the collection seat 3. A support inner barrel 4 is arranged inside the collection seat 3. A plurality of air outlet grooves 12 are processed inside the support inner barrel 4;

[0028] Among them, a plurality of collection grooves 10 are equally spaced around the center of the collection seat 3. The arrangement of the plurality of collection grooves 10 around the center of the collection seat 3 is in a fan shape. By means of the plurality of collection grooves 10 arranged in a fan shape to simulate the basic working principle of a fan, when the salt being dried falls onto the top of the collection seat 3, it can continuously rotate based on the collection seat 3, so that the salt continuously enters the inside of the collection grooves 10 and is concentrated inside the collection seat 3, and then moves upward;

[0029] Secondly, the spiral stirring shaft 7 and the support inner barrel 4 are coaxially arranged. In order to ensure that the collection seat 3 can rotate with the stirring outer barrel 9 (the stirring outer barrel 9 and the spiral stirring shaft 7 are in a synchronous rotation state, and both the stirring outer barrel 9 and the spiral stirring shaft 7 are controlled to rotate by the prior art), as Figure 2 and Figure 3 shown, a fitting sleeve 5 is processed on the top surface of the collection seat 3. By sleeving the fitting sleeve 5 inside one end of the stirring outer barrel 9 and fixing it by bolts, when the fitting sleeve 5 rotates with the stirring outer barrel 9, it can drive the collection seat 3 to introduce the salt dried inside the stirring barrel 1 into the space between the fitting sleeve 5 and the support inner barrel 4 through the stirring outer barrel 9, and fall into the inside of the spiral stirring shaft 7 from the top of the support inner barrel 4, so as to convert the drying of the salt inside the stirring barrel 1 to the drying inside the support inner barrel 4;

[0030] Secondly, in order to ensure the stable rotation of the collection base 3 outside the support inner cylinder 4, as Figure 3 shown, a support sleeve 11 is machined on the inner side of the collection base 3. By sleeving the support sleeve 11 outside the support inner cylinder 4, when the spiral stirring shaft 7 rotates inside the support inner cylinder 4, the dried salt can be pushed towards the top by virtue of the spiral rotation characteristics of the spiral stirring shaft 7;

[0031] Furthermore, in order to enable the water vapor evaporated from the salt to be discharged to the outside when the salt is dried on the inner side of the support inner cylinder 4 (the salt is flipped towards the top by the rotating spiral stirring shaft 7), as Figure 3 and Figure 4 shown, one end of each of the plurality of air outlet grooves 12 is bent, and this end extends into the interior of the support inner cylinder 4 and is in communication with it. When the salt is flipped by the spiral stirring shaft 7 inside the support inner cylinder 4, the evaporated water vapor can flow from the air outlet grooves 12 towards the top to ensure the drying effect;

[0032] Even further, in order to ensure that the water vapor evaporated from the salt inside the support inner cylinder 4 is discharged from the interior of the air outlet grooves 12 towards the top, and does not affect the salt from entering the inner side of the support inner cylinder 4 from the inner side of the fitting sleeve 5, and will not be filled into the interior of the air outlet grooves 12 in large quantities, as Figure 2 and Figure 3 shown, a plurality of air outlet pipes 6 are machined on the top of the support inner cylinder 4, and are equally spaced around the center of the support inner cylinder 4. By making the plurality of air outlet pipes 6 higher than the top end of the support inner cylinder 4, the salt can enter through the collection groove 10 inside the collection base 3, cross over the top of the support inner cylinder 4 between the fitting sleeve 5 and the support inner cylinder 4, and enter the inner side of the support inner cylinder 4;

[0033] At the same time, by setting the number of the plurality of air outlet pipes 6 to an even number, when the plurality of air outlet grooves 12 are combined in pairs, the heights of one end of the air outlet grooves 12 in different groups are different, and the tops of the plurality of air outlet grooves 12 are respectively connected to the interiors of the plurality of air outlet pipes 6, the salt at different heights inside the support inner cylinder 4 can release water vapor, ensuring the effect of water vapor discharge.

[0034] A drying device for vacuum salt production according to the present utility model is provided with a collection seat 3 at the bottom inside the stirring barrel 1, so that the collection seat 3 rotates synchronously with the stirring outer cylinder 9 through the fitting sleeve 5 at its top. When the salt being dried falls onto the top of the collection seat 3, it continuously enters the interior of the collection tank 10, and after passing over the top of the support inner cylinder 4 between the fitting sleeve 5 and the support inner cylinder 4 and entering the inside of the support inner cylinder 4, affected by the rotating spiral stirring shaft 7, the salt flips upward inside the support inner cylinder 4 and then falls to the bottom under the influence of gravity. This allows the evaporated water vapor to be discharged into the multiple outlet pipes 6 at the top of the support inner cylinder 4 through the multiple air outlet slots 12 on the inner wall of the support inner cylinder 4, ensuring the drying effect. There is no need to perform the salt heating and drying work regularly and quantitatively inside the stirring barrel 1, and during the process of the salt being released from one end of the support inner cylinder 4 to the bottom, it will not affect the drying effect of the salt, ensuring continuous output during the drying process of the salt and saving the overall time of the drying process.

[0035] Embodiment 2:

[0036] On the basis of Embodiment 1, as Figures 2-5 shown, this embodiment is the specific structure at one end of the support inner cylinder 4. A sealing plate 8 is provided at one end of the support inner cylinder 4, a control plate 15 is slidably connected to the top of the sealing plate 8, a guiding seat 14 is machined at one end of the spiral stirring shaft 7, a centralized strip groove 13 is opened inside one side of the guiding seat 14, and a release hole 18 is machined at the center of the control plate 15;

[0037] Among them, by sleeving the support inner cylinder 4 inside the extension cylinder 2, and the sealing plate 8 is assembled and fixed to the flange on the support inner cylinder 4 and the flange on the extension cylinder 2 through bolts, after the top surface of the control plate 15 is attached to the bottom surface of the guiding seat 14, the control plate 15 inside the sealing plate 8 can be used to control the release state of the salt dried at the bottom of the support inner cylinder 4;

[0038] Secondly, in order to facilitate controlling the rotation of the control plate 15 inside the sealing plate 8 to control the position where the release hole 18 communicates with the centralized strip groove 13, as Figure 5 shown, a control rod 16 is machined on the bottom surface at one end of the control plate 15, and a sliding groove 17 is machined on the bottom of the sealing plate 8. By using the control rod 16 to control the sliding of the control plate 15 inside the sealing plate 8, the distance between the release hole 18 and the center of the spiral stirring shaft 7 can be changed;

[0039] Meanwhile, based on the distance between the release hole 18 and the center of the spiral stirring shaft 7, when the spiral stirring shaft 7 drives the guiding seat 14 at its one end to rotate, the time interval for the dried salt to be released from the centralized strip groove 13, the release hole 18, and the sliding groove 17 to the bottom can be controlled according to the time interval when the centralized strip groove 13 rotates one circle and communicates with the release hole 18;

[0040] Secondly, to facilitate the quick fall of the dried salt into the inside of the centralized chute 13, as Figure 4 and Figure 5 shown, the top surface of the guide seat 14 is processed into an inclined surface. By placing the centralized chute 13 at the bottom of the inclined surface of the guide seat 14, the dried salt can slide towards the top of the centralized chute 13 under the influence of its own gravity. When the spiral stirring shaft 7 drives the guide seat 14 to rotate and the salt generates centrifugal force, it is easier to slide towards the top of the centralized chute 13.

[0041] In this utility model, a drying device for vacuum salt production is provided. By processing a guide seat 14 with a centralized chute 13 inside at one end of the spiral stirring shaft 7, and rotating a sealing plate 8 with a control plate 15 inside at one end of the support inner cylinder 4, and relying on the position of the control plate 15 inside the sealing plate 8 to control the communication state between the release holes 18 in the control plate 15, the centralized chute 13, and the sliding chute 17, the salt can be continuously discharged from the inside of the sealing plate 8 during the drying process in the support inner cylinder 4, so as to ensure the continuous operation of the work of inputting the salt to be dried into the stirring barrel 1 and outputting the dried salt from the inside of the support inner cylinder 4.

[0042] Meanwhile, it is convenient to control the time interval when the centralized chute 13 inside the guide seat 14 communicates with the release hole 18 during one rotation according to the actual usage requirements, so as to control the time interval for the dried salt to be released from the centralized chute 13, the release hole 18, and the sliding chute 17 to the bottom.

[0043] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly explaining the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A drying device for vacuum salt production, characterized in that: include: Mixing bucket (1); A guide structure, which is arranged at the bottom of the inner side of the mixing barrel (1); An extension cylinder (2) is welded to the outer wall of the bottom of the mixing barrel (1), an outer mixing cylinder (9) is arranged at the center of the inner side of the mixing barrel (1), and a spiral mixing shaft (7) is rotatably connected to the inner side of the outer mixing cylinder (9); The guide structure comprises a collecting seat (3), a plurality of collecting grooves (10) are machined inside the collecting seat (3), and the plurality of collecting grooves (10) are equally spaced around the center of the collecting seat (3); a supporting inner cylinder (4) is arranged on the inner side of the collecting seat (3), a plurality of air outlet grooves (12) are machined inside the supporting inner cylinder (4), and the spiral stirring shaft (7) is coaxially arranged with the supporting inner cylinder (4).

2. A drying device for vacuum salt production as claimed in claim 1, characterized in that: The arrangement of the plurality of collecting grooves (10) around the center of the collecting seat (3) is fan-shaped. The top surface of the collecting seat (3) is processed with a mounting sleeve (5). The mounting sleeve (5) is sleeved on the inner side of one end of the stirring outer cylinder (9) and is assembled and fixed by bolts. The mounting sleeve (5) rotates with the stirring outer cylinder (9), thereby driving the collecting seat (3) to introduce the dried salt inside the stirring barrel (1) through the stirring outer cylinder (9) into between the mounting sleeve (5) and the supporting inner cylinder (4), and the salt falls from the top of the supporting inner cylinder (4) into the interior of the spiral stirring shaft (7).

3. A drying device for vacuum salt production as claimed in claim 1, characterized in that: The inner side of the collecting seat (3) is processed with a supporting sleeve (11), and the supporting sleeve (11) is sleeved on the outside of the supporting inner cylinder (4). The spiral stirring shaft (7) rotates inside the supporting inner cylinder (4) to push the dried salt to move toward the top.

4. A drying device for vacuum salt production as claimed in claim 1, characterized in that: One end of each of the plurality of air outlet grooves (12) is in a bent state, and the end extends into the interior of the supporting inner cylinder (4) and remains in communication therewith.

5. A drying device for vacuum salt production as claimed in claim 4, characterized in that: The top of the supporting inner cylinder (4) is processed with a plurality of air outlet pipes (6), the number of the plurality of air outlet pipes (6) is an even number, and the plurality of air outlet pipes (6) are equally spaced around the center of the supporting inner cylinder (4); The plurality of air outlet grooves (12) are combined in pairs, and the heights of one end of the air outlet grooves (12) in different groups are different. The tops of the plurality of air outlet grooves (12) are respectively connected to the inside of the plurality of air outlet pipes (6).

6. A drying device for vacuum salt production as claimed in claim 1, characterized in that: A sealing plate (8) is provided at one end of the supporting inner cylinder (4), a control plate (15) is slidably connected to the top of the sealing plate (8), a guide seat (14) is processed at one end of the spiral stirring shaft (7), a concentrated groove (13) is opened inside one side of the guide seat (14), and a release hole (18) is processed at the center of the control plate (15); The supporting inner tube (4) is sleeved inside the extension tube (2), the sealing plate (8) is assembled and fixed with the flange on the supporting inner tube (4) and the flange on the extension tube (2) by bolts, and the top surface of the control plate (15) is in contact with the bottom surface of the guide seat (14).

7. A drying device for vacuum salt production as claimed in claim 6, characterized in that: A control rod (16) is processed on the bottom surface of one end of the control plate (15), and a slide groove (17) is processed on the bottom of the sealing plate (8); The control rod (16) controls the control plate (15) to slide inside the sealing plate (8), thereby changing the distance between the release hole (18) and the center of the spiral stirring shaft (7).

8. A drying device for vacuum salt production as claimed in claim 6, characterized in that: The top surface of the guide seat (14) is processed into an inclined surface, and the concentrated strip groove (13) is located at the bottom of the upper inclined surface of the guide seat (14).

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