Potassium nitrate cleaning device

Abstract

The utility model relates to a potassium nitrate cleaning device, which belongs to the technical field of potassium nitrate production and can clean potassium nitrate coarse crystals without manual work. A potassium nitrate cleaning device comprises a barrel, a first water inlet pipe, a first spiral blade and a first driving part. A feeding hole, a filtering hole and a discharging hole which are sequentially distributed along the axial direction of the barrel body are formed in the peripheral side of the barrel body. The first water inlet pipe is coaxially and rotatably arranged in the barrel, water outlet holes communicating the interior of the first water inlet pipe with the interior of the barrel are formed in the peripheral side of the first water inlet pipe, and the first water inlet pipe communicates with an external water source. The first spiral blade diffracts on the peripheral side of the first water inlet pipe, and rotates to drive the potassium nitrate coarse crystals to move from the feed port to the discharge port. The first driving part is arranged outside the cylinder body and is used for driving the first water inlet pipe to rotate;

Description

Technical Field

[0001] The utility model belongs to the technical field of potassium nitrate production, and particularly relates to a potassium nitrate cleaning device. 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.

[0003] Potassium nitrate and agricultural ammonium chloride can be produced by double decomposition reaction of ammonium nitrate and potassium chloride. The process flow of generating potassium nitrate by double decomposition reaction of ammonium nitrate and potassium chloride is as follows: semi-finished product cooling crystallization - floating washing and centrifugation - raw saltpeter re-dissolution - filter pressing - finished product crystallization - washing and filtration - centrifugal separation - drying. At present, crude potassium nitrate crystallization in potassium nitrate workshop, namely raw saltpeter, needs to be washed with mother liquor or water for many times in order to remove unnecessary impurities in the crude product and improve product quality.

[0004] There are some unnecessary operating errors when using manual cleaning. The quality of the products washed manually in the washing section is unstable and of poor quality. The workers have high labor intensity and low efficiency, which makes the quality of the products obtained cannot be guaranteed and the quality is not high. Utility Model Content

[0005] The utility model provides a potassium nitrate cleaning device which can clean potassium nitrate coarse crystals without manual work.

[0006] The utility model is realized by the following technical scheme: a potassium nitrate cleaning device, comprising a cylinder, a first water inlet pipe, a first spiral blade and a first driving member. The peripheral side of the cylinder has a feed port, a filter hole and a discharge port distributed in sequence along the axial direction of the cylinder. The first water inlet pipe is coaxially rotatably arranged in the cylinder, and the peripheral side of the first water inlet pipe is provided with a water outlet hole connecting the inside of the first water inlet pipe and the inside of the cylinder, and the first water inlet pipe is connected to an external water source. The first spiral blade diffracts on the outer peripheral side of the first water inlet pipe, and the first spiral blade rotates to drive the potassium nitrate coarse crystals to move from the feed port to the discharge port. The first driving member is arranged outside the cylinder, and is used to drive the first water inlet pipe to rotate.

[0007] Optionally, along the gravity direction, the feed port is located above the first water inlet pipe, and the filter hole and the discharge port are located below the first water inlet pipe.

[0008] Optionally, a potassium nitrate cleaning device also includes a collecting tank, which is located below the filter hole along the gravity direction.

[0009] Optionally, the cylinder has a first end wall close to the feed port and a second end wall close to the discharge port, the first water inlet pipe has a first sealing end located outside the second end wall, and the first driving member is arranged on the second end wall and is used to drive the first sealing end to rotate.

[0010] Optionally, a potassium nitrate cleaning device also includes a second water inlet pipe, which is coaxially installed on the first end wall, passes through the first end wall and is rotatably connected to the first water inlet pipe, and a water inlet hole connected to an external water source is arranged on the circumferential side of the second water inlet pipe.

[0011] Optionally, a potassium nitrate cleaning device further includes a rotating shaft, a second spiral blade and a second driving member. One end of the rotating shaft is rotatably mounted on the first sealing end. The second spiral blade diffracts on the outer peripheral side of the rotating shaft, and the second spiral blade rotates to drive the clean water to move from the water inlet to the water outlet. The second water inlet pipe has a second sealing end away from the first water inlet pipe, and the second driving member is arranged at the second sealing end to drive the other end of the rotating shaft to rotate.

[0012] Optionally, along the direction of gravity, the water inlet hole is located above the rotation axis.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a potassium nitrate cleaning device, comprising a cylinder, a first water inlet pipe, a first spiral blade and a first driving member. The peripheral side of the cylinder has a feed port, a filter hole and a discharge port distributed in sequence along the axial direction of the cylinder. The first water inlet pipe is coaxially rotatably arranged in the cylinder, and the peripheral side of the first water inlet pipe is provided with a water outlet hole connecting the inside of the first water inlet pipe and the inside of the cylinder, and the first water inlet pipe is connected to an external water source. The first spiral blade diffracts on the outer peripheral side of the first water inlet pipe, and the first spiral blade rotates to drive the potassium nitrate coarse crystals to move from the feed port to the discharge port. The first driving member is arranged outside the cylinder, and is used to drive the first water inlet pipe to rotate.

[0015] Through the above structure, the potassium nitrate cleaning device provided by the utility model can clean crude potassium nitrate crystals. Specifically, the first driving member drives the first water inlet pipe to rotate, so as to drive the first spiral blade to rotate and then replace the crude potassium nitrate crystals to move from the feed port to the discharge port along the axial direction of the cylinder. At the same time, clean water or mother liquor from the water source enters the first water inlet pipe, and leaves the first water inlet pipe from the water outlet to enter the cylinder to clean the crude potassium nitrate crystals. During this period, the first spiral blade flips the crude potassium nitrate crystals to improve the cleaning efficiency of potassium nitrate. Then the mother liquor or clean water flows out from the filter hole, and the crude potassium nitrate crystals leave the cylinder from the discharge port and are collected. Thus, the crude potassium nitrate crystals can be cleaned without manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 A schematic diagram of the structure of a potassium nitrate cleaning device provided in an embodiment of the utility model;

[0018] Figure 2 for Figure 1 Middle AA section view;

[0019] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0020] Figure 4 for Figure 2 A partial enlarged view of point C in the middle;

[0021] Figure 5 for Figure 2 A partial enlarged view of point D in the middle.

[0022] In the figure:

[0023] 1-cylinder; 11-feeding port; 12-filtering hole; 13-discharging port; 14-collecting trough; 15-first end wall; 16-second end wall; 2-first water inlet pipe; 21-water outlet hole; 22-first sealing end; 3-first spiral blade; 4-first driving member; 5-second water inlet pipe; 51-water inlet hole; 6-rotating shaft; 7-second spiral blade; 8-second driving member; X-direction of gravity; Y-axial direction of cylinder. DETAILED DESCRIPTION

[0024] 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.

[0025] Example:

[0026] Reference Figure 1-Figure 5The present embodiment provides a potassium nitrate cleaning device that can clean potassium nitrate coarse crystals without manual work. The potassium nitrate cleaning device includes a cylinder 1, a first water inlet pipe 2, a first spiral blade 3 and a first driving member 4. The peripheral side of the cylinder 1 has a feed port 11, a filter hole 12 and a discharge port 13 distributed in sequence along the axial direction of the cylinder 1. The first water inlet pipe 2 is coaxially rotatably arranged in the cylinder 1, and the peripheral side of the first water inlet pipe 2 is provided with a water outlet 21 connecting the inside of the first water inlet pipe 2 and the inside of the cylinder 1, and the first water inlet pipe 2 is connected to an external water source. The first spiral blade 3 diffracts on the outer peripheral side of the first water inlet pipe 2, and the first spiral blade 3 rotates to drive the potassium nitrate coarse crystals to move from the feed port 11 to the discharge port 13. The first driving member 4 is arranged outside the cylinder 1 and is used to drive the first water inlet pipe 2 to rotate.

[0027] It can be understood that the first driving member 4 can be a driving motor, and the driving motor is connected to the first water inlet pipe 2 through a reducer to drive the first water inlet pipe 2 to rotate.

[0028] Optionally, the filter holes 12 are arranged in multiple rows along the axial direction of the barrel 1, and each row of filter holes 12 may be a plurality of filter holes 12 located on a part of the circumference of the barrel 1 around the circumference of the barrel 1. It can be understood that the diameter of the filter holes 12 needs to be smaller than the diameter of the coarse crystals to reduce the probability of the coarse crystals leaving the barrel 1 from the filter holes 12. In some embodiments, the portion of the barrel 1 having the filter holes 12 may be a ceramic filter plate.

[0029] Optionally, the water outlet holes 21 may be arranged in multiple rows along the axial direction of the first water inlet pipe 2 , and each row of water outlet holes 21 may be a plurality of water outlet holes 21 arranged at intervals around the circumference of the water inlet pipe.

[0030] More preferably, a drying device is provided between the filter hole 12 and the discharge port 13 along the axial direction of the cylinder 1. The drying device can be an electric heating wire provided in the peripheral wall of the cylinder 1. The electric heating wire is used to provide heat to the cylinder 1 to evaporate the clean water or mother liquor remaining on the coarse crystals.

[0031] Through the above structure, the potassium nitrate cleaning device provided by the utility model can clean potassium nitrate coarse crystals. Specifically, the first driving member 4 drives the first water inlet pipe 2 to rotate, so as to drive the first spiral blade 3 to rotate and then replace the potassium nitrate coarse crystals to move from the feed port 11 to the discharge port 13 along the axial direction of the cylinder 1. At the same time, clean water or mother liquor from the water source enters the first water inlet pipe 2, and leaves the first water inlet pipe 2 from the water outlet 21 to enter the cylinder 1 to clean the potassium nitrate coarse crystals. During this period, the first spiral blade 3 flips the potassium nitrate coarse crystals to improve the cleaning efficiency of potassium nitrate. Then the mother liquor or clean water flows out from the filter hole 12, and the potassium nitrate coarse crystals leave the cylinder 1 from the discharge port 13 and are collected. Thus, the potassium nitrate coarse crystals can be cleaned without manual intervention.

[0032] An optional implementation of this embodiment is as follows: along the gravity direction X, the feed port 11 is located above the first water inlet pipe 2, and the filter hole 12 and the discharge port 13 are located below the first water inlet pipe 2. The feed port 11 is located above the first water inlet pipe 2, so that the device is placed below the coarse crystallization device, so that the coarse crystallization device can input crude potassium nitrate crystals into the cleaning device. The filter hole 12 is located below the first water inlet pipe 2, so that the clean water or mother liquor leaves the inside of the cylinder 1 through the filter hole 12 under the influence of gravity. The discharge port 13 is located below the first water inlet pipe 2, so that the coarse crystals leave the cylinder 1 through the discharge port 13 under the influence of gravity to be collected.

[0033] An optional implementation of this embodiment is as follows: A potassium nitrate cleaning device further includes a collecting tank 14, and the collecting tank 14 is located below the filter hole 12 along the gravity direction X. This facilitates the collection of the mother liquor and clean water after cleaning, thereby facilitating the re-extraction of potassium nitrate dissolved in the mother liquor and clean water to avoid waste.

[0034] An optional implementation of this embodiment is as follows: the cylinder 1 has a first end wall 15 close to the feed port 11 and a second end wall 16 close to the discharge port 13, the first water inlet pipe 2 has a first sealing end 22 located outside the second end wall 16, and the first driving member 4 is disposed on the second end wall 16 and is used to drive the first sealing end 22 to rotate. Specifically, the first driving member 4 drives the first water inlet pipe 2 to rotate by driving the first sealing end 22 to rotate.

[0035] An optional implementation of this embodiment is as follows: A potassium nitrate cleaning device also includes a second water inlet pipe 5, which is coaxially mounted on the first end wall 15, passes through the first end wall 15 and is rotatably connected to the first water inlet pipe 2, and a water inlet hole 51 connected to an external water source is provided on the circumference of the second water inlet pipe 5. Specifically, by fixing the second water inlet pipe 5 relative to the cylinder 1, and making the first water inlet pipe 2 communicate with the second water inlet pipe 5, it is convenient for the external water source to be connected to the first water inlet pipe 2 through the second water inlet pipe 5, so that the connection between the external water source and the device will not move, thereby facilitating the connection with the external water source.

[0036] Optionally, the water source may be a water pipe or a mother liquid storage device.

[0037] An optional implementation of this embodiment is as follows: A potassium nitrate cleaning device also includes a rotating shaft 6, a second spiral blade 7 and a second driving member 8. One end of the rotating shaft 6 is rotatably mounted on the first sealing end 22. The second spiral blade 7 diffracts on the outer peripheral side of the rotating shaft 6, and the second spiral blade 7 rotates to drive the clean water to move from the water inlet 51 to the water outlet 21. The second water inlet pipe 5 has a second sealing end away from the first water inlet pipe 2, and the second driving member 8 is arranged at the second sealing end to drive the other end of the rotating shaft 6 to rotate. It can be understood that the second driving member 8 can be a driving motor, and the driving motor is connected to the rotating shaft 6 through a reducer. Specifically, the second driving member 8 drives the rotating shaft 6 to rotate to drive the clean water to move from the water inlet 51 to the water outlet 21. Thereby, the water outlet 21 away from the water inlet 51 will also have a certain amount of clean water passing through. Thereby, the clean water enters the cylinder 1 more evenly.

[0038] It can be understood that the first driving member 4 and the second driving member 8 can respectively drive the first water inlet pipe 2 and the rotating shaft 6 to rotate in the same direction or in the opposite direction. When the first driving member 4 and the second driving member 8 respectively drive the first water inlet pipe 2 and the rotating shaft 6 to rotate in the same direction, the rotation speed of the first driving member 4 is lower than the rotation speed of the second driving member 8, so that the rotating shaft 6 can drive the clean water to move from the water inlet hole 51 to the water outlet hole 21.

[0039] An optional implementation of this embodiment is as follows: along the gravity direction X, the water inlet hole 51 is located above the rotating shaft 6. In this way, the water from the water source can enter the second water inlet pipe 5 by gravity, so that no additional pressure device, such as the assistance of a pressure pump, is required, and the clean water or mother liquor can enter the second water inlet pipe 5 more slowly, so that the device can adjust the amount of clean water or mother liquor used, thereby reducing the risk of excessive dissolution of coarse crystals due to excessive clean water or mother liquor.

[0040] 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 potassium nitrate cleaning device, characterized in that, include: A cylinder, wherein the circumferential side of the cylinder has a feed inlet, a filter hole and a discharge port sequentially distributed along the axial direction of the cylinder; A first water inlet pipe is coaxially rotatably disposed in the cylinder, a water outlet hole communicating with the interior of the first water inlet pipe and the interior of the cylinder is disposed on the circumference of the first water inlet pipe, and the first water inlet pipe is communicated with an external water source; a first spiral blade, diffracting on the outer peripheral side of the first water inlet pipe, the first spiral blade rotates to drive the crude potassium nitrate crystals to move from the feed inlet to the discharge outlet; The first driving member is arranged outside the cylinder and is used for driving the first water inlet pipe to rotate.

2. A potassium nitrate cleaning device according to claim 1, characterized in that, Along the gravity direction, the feed port is located above the first water inlet pipe, and the filter hole and the discharge port are located below the first water inlet pipe.

3. A potassium nitrate cleaning device according to claim 2, characterized in that, Also includes: A collecting trough is located below the filtering hole along the gravity direction.

4. A potassium nitrate cleaning device according to any one of claims 1-3, characterized in that, The cylinder has a first end wall close to the feed port and a second end wall close to the discharge port, the first water inlet pipe has a first sealing end located outside the second end wall, and the first driving member is arranged on the second end wall and is used to drive the first sealing end to rotate.

5. A potassium nitrate cleaning device according to claim 4, characterized in that, Also includes: The second water inlet pipe is coaxially installed on the first end wall. The second water inlet pipe passes through the first end wall and is rotatably connected to the first water inlet pipe. The circumferential side of the second water inlet pipe is provided with a water inlet hole connected to an external water source.

6. A potassium nitrate cleaning device according to claim 5, characterized in that, Also includes: A rotating shaft, one end of which is rotatably mounted on the first sealing end; a second spiral blade, diffracting on the outer circumference of the rotating shaft, the second spiral blade rotates to drive the clean water to move from the water inlet to the water outlet; The second driving member, the second water inlet pipe has a second sealed end away from the first water inlet pipe, and the second driving member is arranged at the second sealed end to drive the other end of the rotating shaft to rotate.

7. A potassium nitrate cleaning device according to claim 6, characterized in that: Along the direction of gravity, the water inlet hole is located above the rotating shaft.

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