Cooling device for potassium nitrate production

Abstract

The utility model relates to a cooling device for potassium nitrate production, belongs to the technical field of potassium nitrate production, and solves the technical problem that a large crystal is formed after potassium nitrate liquid is cooled by the existing device for potassium nitrate production. The device comprises a shell, a cooling piece, a stirring assembly and a driving assembly. A containing cavity is formed in the shell. The cooling piece is arranged in the inner circumferential wall of the containing cavity in a winding mode so as to be used for absorbing heat in the containing cavity. One end of the stirring assembly is located in the containing cavity, and the stirring assembly rotates around the axis of the containing cavity and rotates around the axis of the stirring assembly. The driving assembly is configured to drive the stirring assembly to move.

Description

Technical Field

[0001] The utility model belongs to the technical field of potassium nitrate production, and particularly relates to a cooling device used for potassium nitrate production. Background Art

[0002] Potassium nitrate is a chemical substance with the chemical formula KNO3, which is commonly used in gunpowder, fertilizer, food additives and other fields. In gunpowder, potassium nitrate is an important oxidant that can provide oxygen to support combustion. In fertilizers, potassium nitrate can provide nitrogen, potassium and other elements required by plants. In food additives, potassium nitrate is often used as a preservative and pigment. Cooling is a common process in the production of potassium nitrate. After the existing equipment for potassium nitrate production cools the potassium nitrate liquid, the crystals formed are relatively large and usually need to be crushed again. Utility Model Content

[0003] The utility model provides a cooling device for potassium nitrate production, which is used to solve the technical problem of large crystals formed by the device for potassium nitrate production in the prior art.

[0004] The utility model is realized by the following technical scheme: a cooling device for potassium nitrate production, comprising:

[0005] A housing having a receiving cavity therein;

[0006] A cooling element is arranged around the inner peripheral wall of the accommodating cavity to absorb the heat in the accommodating cavity;

[0007] A stirring assembly, one end of which is located in the accommodating chamber, the stirring assembly rotates around the axis of the accommodating chamber and rotates around the axis of the stirring assembly;

[0008] The driving assembly is configured to drive the stirring assembly to move.

[0009] Optionally, in order to better implement the utility model, the stirring assembly includes:

[0010] A rotating shaft, one end of which is located in the accommodating cavity, and the other end of which is connected to the driving assembly;

[0011] The stirring paddle is arranged around the outer circumference of the rotating shaft and is located in the accommodating cavity.

[0012] Optionally, in order to better implement the utility model, the stirring assembly also includes:

[0013] The abutment plate has a first curved surface and a second curved surface which are arranged opposite to each other along the radial direction of the housing, the centers of curvature of the first curved surface and the second curved surface coincide with the axis of the accommodating cavity, and the first curved surface abuts against the inner circumferential surface of the accommodating cavity;

[0014] The spiral blade is wound on the second curved surface, and one end of the rotating shaft is located in the accommodating cavity and is rotatably installed on the side of the spiral blade away from the second curved surface. The spiral blade rotates around the axis of the accommodating cavity to drive the potassium nitrate liquid to move closer to the driving component.

[0015] Optionally, in order to better implement the utility model, an avoidance groove corresponding to the stirring paddle is opened on the spiral blade, and the stirring paddle and the avoidance groove move relative to each other to break up the potassium nitrate crystals.

[0016] Optionally, in order to better implement the utility model, the driving component includes:

[0017] A motor, mounted on the housing and having a driving end coaxial with the accommodating cavity;

[0018] A connecting member, one end of which is mounted on the driving end, and the other end of which is away from the driving end in the radial direction of the accommodating cavity, and one end of the rotating shaft located outside the accommodating cavity is rotatably mounted on the other end of the connecting member;

[0019] An external gear, sleeved outside the rotating shaft;

[0020] The inner gear is mounted on the outer shell, sleeved outside the outer gear, and meshed with the outer gear.

[0021] Optionally, in order to better implement the utility model, the housing includes:

[0022] The barrel body has a containing cavity, and one end of the barrel body has an opening;

[0023] The barrel cover covers the opening along the axial direction of the barrel body and rotates coaxially relative to the barrel body. A through hole for the rotating shaft to pass through is provided on the barrel cover.

[0024] Optionally, in order to better implement the utility model, the housing further includes:

[0025] A support rod, one end of which is mounted on the barrel body;

[0026] A mounting plate is mounted on the other end of the support rod, the motor is mounted on a side of the mounting plate away from the barrel cover, the drive end passes through the mounting plate and is located between the mounting plate and the barrel cover, and the internal gear is mounted on a side of the mounting plate facing the barrel cover.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The utility model provides a cooling device for potassium nitrate production, comprising a housing, a cooling element, a stirring assembly and a driving assembly. The housing has a receiving cavity. The cooling element is arranged around the inner peripheral wall of the receiving cavity to absorb the heat in the receiving cavity. One end of the stirring assembly is located in the receiving cavity, and the stirring assembly rotates around the axis of the receiving cavity and around the axis of the stirring assembly. The driving assembly is configured to drive the stirring assembly to move.

[0029] Through the above structure, when the cooling device for potassium nitrate production provided by the utility model cools the potassium nitrate liquid in the accommodating chamber, the movement of the stirring component can drive the potassium nitrate liquid to move around the axis of the accommodating chamber, and at the same time drive the potassium nitrate liquid to move around the axis of the stirring component, thereby forming turbulence, so that the potassium nitrate liquid can more evenly contact the cavity wall of the accommodating chamber close to the cooling component, thereby allowing the potassium nitrate solution to crystallize evenly, which is beneficial to reducing the size of the potassium nitrate crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a cooling device for potassium nitrate production provided in an embodiment of the utility model;

[0032] Figure 2 for Figure 1 Middle AA section view;

[0033] Figure 3 for Figure 2 BB section view in;

[0034] Figure 4 for Figure 2 CC section view in;

[0035] Figure 5 for Figure 2 A local enlarged view of the D region;

[0036] Figure 6 An exploded view of a cooling device for potassium nitrate production provided in an embodiment of the utility model.

[0037] In the figure:

[0038] 10-housing; 11-barrel body; 111-feeding hole; 112-discharging hole; 113-accommodating cavity; 12-barrel cover; 121-through hole; 13-support rod; 14-mounting plate;

[0039] 20-stirring assembly; 21-rotating shaft; 22-stirring paddle; 23-abutting plate; 231-first curved surface; 232-second curved surface; 24-spiral blade; 241-avoidance groove;

[0040] 30 - driving assembly; 31 - motor; 311 - driving end; 32 - connecting piece; 33 - external gear; 34 - internal gear. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0042] Example:

[0043] Reference Figure 1-Figure 6 The present embodiment provides a cooling device for potassium nitrate production, which is used to solve the technical problem of large crystals formed in the device for potassium nitrate production in the prior art. The cooling device for potassium nitrate production includes a shell 10, a cooling member, a stirring assembly 20 and a driving assembly 30. The shell 10 has a receiving chamber 113. The cooling member is arranged around the inner circumferential wall of the receiving chamber 113 to absorb the heat in the receiving chamber 113. One end of the stirring assembly 20 is located in the receiving chamber 113, and the stirring assembly 20 rotates around the axis of the receiving chamber 113 and around the axis of the stirring assembly 20. The driving assembly 30 is configured to drive the stirring assembly 20 to move.

[0044] It should be noted that the cooling element (not shown in the figure) may include an evaporator, a compressor, a condenser and an expansion valve. Among them, the evaporator is arranged around the inner wall of the accommodating chamber 113, and its function is to absorb the heat inside the accommodating chamber 113. The refrigerant evaporates into a gaseous state inside the evaporator, absorbs the heat inside the accommodating chamber 113, and reduces the temperature of the potassium nitrate in the accommodating chamber 113. The compressor is located outside the shell 10, and the refrigerant in the evaporator becomes a low-pressure and low-temperature gas after evaporation, and is then sucked into the compressor and compressed into a high-temperature and high-pressure gas. This process increases the temperature of the refrigerant and increases its heat. Subsequently, the high-temperature and high-pressure refrigerant gas passes through the condenser, releases heat to the external environment, cools and condenses into a high-pressure liquid refrigerant. The high-pressure liquid refrigerant enters the evaporator through the expansion valve, and the pressure of the refrigerant drops sharply at this time, and the temperature also drops accordingly, thereby completing the refrigeration cycle. The above-mentioned technologies are all prior arts, so they are not described in detail here.

[0045] “The evaporation tube is wound inside the inner wall of the accommodating chamber 113” means that the wall of the accommodating chamber 113 is a hollow structure, and the wall has an accommodating chamber (not shown in the figure) wound outside the accommodating chamber 113, and the evaporation tube is wound inside the accommodating chamber (not shown in the figure).

[0046] Through the above structure, when the cooling device for potassium nitrate production provided by the utility model cools the potassium nitrate liquid in the accommodating chamber 113, the stirring component 20 can be rotated along the W1 direction around the axis of the accommodating chamber 113, thereby driving the potassium nitrate liquid to move along the W1 direction around the axis of the accommodating chamber 113. At the same time, since the stirring component 20 rotates along the W2 direction around the axis of the stirring component 20, the potassium nitrate liquid can be driven to move along the W2 direction around the axis of the stirring component 20, thereby forming turbulence, so that the potassium nitrate liquid can be more evenly contacted with the cavity wall of the accommodating chamber 113 close to the cooling member, thereby enabling the potassium nitrate solution to crystallize evenly, which is beneficial to reducing the size of the potassium nitrate crystals.

[0047] An optional implementation of this embodiment is as follows: the stirring assembly 20 includes a rotating shaft 21 and a stirring paddle 22. One end of the rotating shaft 21 is located in the accommodating chamber 113, and the other end of the rotating shaft 21 is connected to the driving assembly 30. The stirring paddles 22 are divided into five groups uniformly distributed along the axial direction of the rotating shaft 21, and each group of stirring paddles 22 is six uniformly distributed around the circumference of the rotating shaft 21. The above five groups of stirring paddles 22 are all located in the accommodating chamber 113. More preferably, one end of the stirring paddle 22 is mounted on the outer circumferential surface of the rotating shaft 21, and the other end extends radially along the rotating shaft 21.

[0048] Reference Figure 3Thus, when the rotating shaft 21 rotates along the W1 direction around the axis of the accommodating chamber 113 and rotates along the W2 direction around the axis of the rotating shaft 21, the stirring paddle 22 can drive the potassium nitrate solution in a larger range to follow the movement of the rotating shaft 21, so that the potassium nitrate liquid can more evenly contact the cavity wall of the accommodating chamber 113 close to the cooling element, thereby allowing the potassium nitrate solution to crystallize evenly, which is beneficial to reducing the size of the potassium nitrate crystals.

[0049] An optional implementation of this embodiment is as follows: the stirring assembly 20 also includes an abutment plate 23 and a spiral blade 24. The abutment plate 23 has a first curved surface 231 and a second curved surface 232 that are arranged opposite to each other along the radial direction of the outer shell 10. The centers of curvature of the first curved surface 231 and the second curved surface 232 coincide with the axis of the accommodating chamber 113, and the first curved surface 231 abuts against the inner circumference of the accommodating chamber 113. The spiral blade 24 is wound around the second curved surface 232. One end of the rotating shaft 21 located in the accommodating chamber 113 is rotatably mounted on a side of the spiral blade 24 away from the second curved surface 232, and the spiral blade 24 rotates around the axis of the accommodating chamber 113 to drive the potassium nitrate liquid to move closer to the driving assembly 30.

[0050] Optionally, the projection of the abutment plate 23 in the axial direction of the accommodating chamber 113 can be in the shape of a partial fan ring (partial circular ring). It should be noted that the central angle of the above-mentioned fan ring should be greater than 180°, so that when the rotating shaft 21 rotates around the axis of the accommodating chamber 113 along the W1 direction, the abutment plate 23 can play a structural limiting role on the spiral blade 24 so that the spiral blade 24 can rotate around the axis of the accommodating chamber 113 along the W1 direction.

[0051] Reference Figure 2 and Figure 3 Specifically, when the rotating shaft 21 rotates around the axis of the accommodating chamber 113 along the W1 direction, the spiral blade 24 will be driven to rotate around the axis of the accommodating chamber 113 along the W1 direction, so that the potassium nitrate liquid can be driven to move along the N1 direction to approach the driving assembly 30 around the axis of the accommodating chamber 113 along the W1 direction, and the potassium nitrate liquid away from the spiral blade 24 can be moved away from the driving assembly 30 along the N2 direction. Turbulence is then formed, so that the potassium nitrate liquid can more evenly contact the cavity wall of the accommodating chamber 113 close to the cooling element, and the potassium nitrate solution can be uniformly crystallized, which is beneficial to reducing the size of the potassium nitrate crystals.

[0052] An optional implementation of this embodiment is as follows: an avoidance groove 241 corresponding to the stirring paddle 22 is opened on the spiral blade 24, and the stirring paddle 22 and the avoidance groove 241 move relative to each other to break up the potassium nitrate crystals.

[0053] Reference Figure 3Specifically, when the stirring paddle 22 rotates around the axis of the rotating shaft 21 along the W2 direction relative to the spiral blade 24, the stirring paddle 22 will pass through the avoidance groove 241, thereby cooperating with the avoidance groove 241 to break up the potassium nitrate crystals whose size is larger than the avoidance groove 241.

[0054] An optional implementation of this embodiment is as follows: the driving assembly 30 includes a motor 31, a connecting member 32, an external gear 33 and an internal gear 34. The motor 31 is mounted on the housing 10 and has a driving end 311 coaxial with the accommodating chamber 113. One end of the connecting member 32 is mounted on the driving end 311, and the other end is radially away from the driving end 311 in the accommodating chamber 113, and one end of the rotating shaft 21 located outside the accommodating chamber 113 is rotatably mounted on the other end of the connecting member 32. The external gear 33 is sleeved outside the rotating shaft 21. The internal gear 34 is mounted on the housing 10, sleeved outside the external gear 33, and meshed with the external gear 33.

[0055] Reference Figure 4 Specifically, the driving end 311 of the motor 31 drives the other end of the connecting member 32 to move along the W1 direction around the axis of the accommodating chamber 113. This drives the rotating shaft 21 to move along the W1 direction around the axis of the accommodating chamber 113, thereby driving the external gear 33 to move along the W1 direction around the axis of the accommodating chamber 113 relative to the internal gear 34. This causes the external gear 33 to rotate along the W2 direction, thereby driving the rotating shaft 21 to move along the W2 direction around the axis of the rotating shaft 21. This causes the rotating shaft 21 to move along the W1 direction around the axis of the accommodating chamber 113 while moving along the W2 direction around the axis of the rotating shaft 21.

[0056] An optional implementation of the present embodiment is as follows: the outer shell 10 includes a barrel body 11 and a barrel cover 12. The barrel body 11 has a containing cavity 113, and one end of the barrel body 11 has an opening. The barrel cover 12 covers the opening along the axial direction of the barrel body 11 and rotates coaxially relative to the barrel body 11, and the barrel cover 12 is provided with a through hole 121 for the rotating shaft 21 to pass through. More preferably, the barrel body 11 is also provided with an inlet hole 111 for potassium nitrate liquid to enter the containing cavity 113 and a discharge hole 112 for potassium nitrate crystals to leave the containing cavity 113. It can be understood that the inlet hole 111 and the discharge hole 112 are in a blocked state during the cooling process.

[0057] In this way, the barrel cover 12 can seal the opening of the barrel body 11 while following the rotation shaft 21 to move around the axis of the accommodating cavity 113 along the W1 direction, so as to reduce the risk of leakage of the potassium nitrate solution.

[0058] An optional implementation of this embodiment is as follows: the housing 10 further includes a support rod 13 and a mounting plate 14. One end of the support rod 13 is mounted on the barrel body 11. The mounting plate 14 is mounted on the other end of the support rod 13, and the motor 31 is mounted on the side of the mounting plate 14 away from the barrel cover 12. The driving end 311 passes through the mounting plate 14 and is located between the mounting plate 14 and the barrel cover 12, and the internal gear 34 is mounted on the side of the mounting plate 14 facing the barrel cover 12.

[0059] More preferably, there are two support rods 13 parallel to each other, one end of the two support rods 13 is respectively connected to the opposite sides of the barrel body 11 , and the other ends of the two support rods 13 are respectively connected to the opposite ends of the mounting plate 14 .

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cooling device for potassium nitrate production, characterized in that: include: A housing having a receiving cavity therein; A cooling element, arranged around the inner peripheral wall of the accommodating cavity, for absorbing the heat in the accommodating cavity; A stirring component, one end of which is located in the accommodating cavity, and the stirring component rotates around the axis of the accommodating cavity and rotates around the axis of the stirring component; The driving assembly is configured to drive the stirring assembly to move.

2. A cooling device for potassium nitrate production according to claim 1, characterized in that: The stirring assembly comprises: A rotating shaft, one end of which is located in the accommodating cavity, and the other end of which is connected to the driving assembly; The stirring paddle is arranged around the outer circumference of the rotating shaft and is located in the accommodating cavity.

3. A cooling device for potassium nitrate production according to claim 2, characterized in that: The stirring assembly also includes: an abutment plate, comprising a first curved surface and a second curved surface arranged opposite to each other in a radial direction of the housing, wherein the centers of curvature of the first curved surface and the second curved surface coincide with the axis of the accommodating cavity, and the first curved surface abuts against the inner circumferential surface of the accommodating cavity; A spiral blade is wound around the second curved surface, and one end of the rotating shaft located in the accommodating chamber is rotatably mounted on a side of the spiral blade away from the second curved surface. The spiral blade rotates around the axis of the accommodating chamber to drive the potassium nitrate liquid to move closer to the driving component.

4. A cooling device for potassium nitrate production according to claim 3, characterized in that: The spiral blade is provided with an avoidance groove corresponding to the stirring paddle, and the stirring paddle and the avoidance groove move relative to each other to break up potassium nitrate crystals.

5. A cooling device for potassium nitrate production according to any one of claims 2-4, characterized in that, The drive assembly comprises: A motor, mounted on the housing and having a driving end coaxial with the accommodating cavity; A connecting member, one end of which is mounted on the driving end, and the other end of which is away from the driving end in the radial direction of the accommodating cavity, and one end of the rotating shaft located outside the accommodating cavity is rotatably mounted on the other end of the connecting member; An external gear, sleeved outside the rotating shaft; The inner gear is mounted on the outer shell, sleeved outside the outer gear, and meshed with the outer gear.

6. A cooling device for potassium nitrate production according to claim 5, characterized in that: The housing comprises: A barrel body, comprising the accommodating cavity, and one end of the barrel body having an opening; The barrel cover covers the opening along the axial direction of the barrel body and rotates coaxially relative to the barrel body. The barrel cover is provided with a through hole for the rotating shaft to pass through.

7. A cooling device for potassium nitrate production according to claim 6, characterized in that: The housing also includes: A support rod, one end of which is mounted on the barrel body; A mounting plate is mounted on the other end of the support rod, the motor is mounted on a side of the mounting plate away from the barrel cover, the drive end passes through the mounting plate and is located between the mounting plate and the barrel cover, and the internal gear is mounted on a side of the mounting plate facing the barrel cover.

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