Potassium nitrate cleaning device

By designing the internal structure of the cleaning cylinder, the problems of continuity and efficiency in the cleaning process of potassium nitrate crystals were solved, and efficient cleaning of potassium nitrate crystals was achieved.

CN224128078UActive Publication Date: 2026-04-17YUNNAN OUROHAM FERTILIZER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN OUROHAM FERTILIZER TECH CO LTD
Filing Date
2025-05-06
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing potassium nitrate cleaning devices suffer from poor continuity of potassium nitrate crystals and low cleaning efficiency during the cleaning process.

Method used

A potassium nitrate cleaning device was designed, comprising a cleaning cylinder, an inner cleaning cylinder, a material blocking net, a liquid guiding pipe, and a material conveying blade. Through the cooperation of the liquid inlet pipe, the liquid outlet hole, and the liquid outlet pipe, continuous cleaning of potassium nitrate crystals is achieved, and the rotation of the material conveying blade prevents the crystals from clumping together.

Benefits of technology

This improved the continuity and overall efficiency of potassium nitrate cleaning, ensuring uniform rinsing and effective cleaning of crystals during the cleaning process.

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Abstract

The utility model discloses a potassium nitrate cleaning device, belongs to the technical field of potassium nitrate production, and can ensure the continuity of potassium nitrate crystal cleaning during subsequent work and effectively improve the overall efficiency of potassium nitrate cleaning. The potassium nitrate cleaning device comprises a cleaning barrel, a containing cavity is formed in the cleaning barrel, a cleaning inner barrel is horizontally fixed in the containing cavity, one end of the cleaning inner barrel extends out of the cleaning barrel, a discharging pipe is arranged at the bottom of the end, extending out of the cleaning barrel, of the cleaning inner barrel in a protruding mode, and a material blocking net is arranged at the middle section of the cleaning inner barrel; a liquid guide pipe is rotationally arranged in the inner cleaning barrel and the material blocking net, material conveying blades are installed on the outer edge of the liquid guide pipe, liquid drainage holes are formed in the outer edge of the liquid guide pipe, one end of the liquid guide pipe extends out of the cleaning barrel, a liquid drainage pipe is fixed to the end, extending out of the cleaning barrel, of the liquid guide pipe, and a gearbox is installed at the end, away from the liquid drainage pipe, of the cleaning barrel; and a liquid inlet pipe is fixed in the cleaning cylinder.
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Description

Technical Field

[0001] This utility model belongs to the field of potassium nitrate production technology, specifically relating to a potassium nitrate cleaning device. Background Technology

[0002] Potassium nitrate, with the chemical formula KNO3, is a chemical substance commonly used in gunpowder, fertilizers, and food additives. In gunpowder, potassium nitrate is an important oxidizing agent, providing oxygen to support combustion. Potassium nitrate and the byproduct agricultural ammonium chloride can be produced through the double decomposition reaction of ammonium nitrate and potassium chloride. The process flow for producing potassium nitrate from the double decomposition reaction of ammonium nitrate and potassium chloride is as follows: semi-finished product cooling and crystallization – flotation washing and centrifugation – redissolution of crude nitrate – pressure filtration – finished product crystallization – washing and filtration – centrifugation – drying. The cleaning of the potassium nitrate crystals requires a potassium nitrate cleaning device.

[0003] Existing potassium nitrate cleaning equipment mostly uses rinsing to clean potassium nitrate crystals. During the cleaning process, problems such as the need for multiple rinsings and poor continuity of potassium nitrate crystals are common. This equipment cannot meet the needs of continuous production of potassium nitrate crystals. Therefore, a potassium nitrate cleaning device is needed to help solve this problem. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a potassium nitrate cleaning device, which aims to ensure the continuity of potassium nitrate crystal cleaning during subsequent operations and effectively improve the overall efficiency of potassium nitrate cleaning.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a potassium nitrate cleaning device, which includes a cleaning cylinder with a receiving cavity inside. A cleaning inner cylinder is horizontally fixed inside the receiving cavity. One end of the cleaning inner cylinder extends out of the cleaning cylinder. A discharge pipe is protruding from the bottom of the end of the cleaning inner cylinder that extends out of the cleaning cylinder. A material blocking net is provided in the middle section of the cleaning inner cylinder.

[0008] The inner cleaning cylinder and the material blocking mesh are provided with a cleaning chamber. A liquid guide pipe is rotatably arranged in the cleaning chamber. A material conveying blade is installed at the outer edge of the liquid guide pipe. A drain hole is provided at the outer edge of the liquid guide pipe. One end of the liquid guide pipe extends out of the cleaning cylinder. A drain pipe is fixed at the end of the liquid guide pipe extending out of the cleaning cylinder. A gearbox is installed at the end of the cleaning cylinder away from the drain pipe. A servo motor that drives the liquid guide pipe to rotate is installed on the gearbox. An inlet pipe is fixed inside the cleaning cylinder.

[0009] Furthermore, an inlet is provided at the inner edge of the inlet pipe, and a guide tube is provided at the top and bottom of the cleaning cylinder, with a conduit installed at one end of the guide tube.

[0010] Furthermore, the inlet pipe is annular, and the guide pipe is connected to the inlet pipe via a connecting pipe.

[0011] Furthermore, the liquid inlet is provided in a plurality of manner, and the plurality of liquid inlets are arranged in a circular array with the center of the liquid inlet pipe as the center.

[0012] Furthermore, a plurality of drainage holes are provided, and the plurality of drainage holes are arranged in an equidistant array at the outer edge of the liquid guide tube.

[0013] Furthermore, the conveying blade is spiral-shaped, and a protruding rod is provided on the conveying blade. The protruding rod passes through the conveying blade laterally and is equidistantly arranged along the spiral base surface of the conveying blade.

[0014] Furthermore, a feed funnel is installed at the end of the inner cleaning cylinder away from the discharge pipe, the top of the feed funnel extends out of the cleaning cylinder, and the feed funnel communicates with the cleaning chamber inside the inner cleaning cylinder.

[0015] Furthermore, a base frame is fixed at the bottom of the cleaning cylinder.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention, through the cooperation of the inner cleaning cylinder, the material blocking mesh, the liquid guiding pipe, and the conveying blades inside the cleaning cylinder, allows the raw material to enter the inner cleaning cylinder through the feed funnel during the cleaning of potassium nitrate crystals. The cleaning liquid enters the guiding pipe through the conduit, then the liquid inlet pipe through the connecting pipe, and exits through the inlet into the inner cavity. The material blocking mesh on the inner cleaning cylinder then enters the cleaning chamber inside the inner cleaning cylinder to assist in the cleaning of the potassium nitrate crystals. The cleaned liquid flows through the drain hole on the liquid guiding pipe into the drain pipe and is discharged. The cleaned potassium nitrate crystals are discharged through the discharge pipe. This ensures the continuity of potassium nitrate crystal cleaning during subsequent operations and effectively improves the overall efficiency of potassium nitrate cleaning.

[0019] This invention, by setting equidistant liquid inlet pipes and liquid inlets on the liquid inlet pipes inside the cleaning cylinder, can ensure that potassium nitrate crystals in all positions inside the cleaning cylinder can be effectively rinsed with liquid during operation through multi-position liquid inlet treatment, thereby improving the overall cleaning effect of potassium nitrate crystals.

[0020] This invention features a protruding rod that runs horizontally through the conveyor blades. During operation, the potassium nitrate crystals are agitated by rotating the conveyor, resulting in better cleaning and minimizing the risk of inadequate cleaning due to the accumulation of potassium nitrate crystals. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a longitudinal sectional view of the cleaning cylinder of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0026] The labels in the attached diagram are as follows: 1. Cleaning cylinder; 2. Base frame; 3. Guide pipe; 31. Guide tube; 32. Connecting pipe; 4. Feed funnel; 5. Cleaning inner cylinder; 51. Discharge pipe; 6. Material blocking net; 7. Liquid guide pipe; 71. Discharge hole; 72. Discharge pipe; 8. Conveying blade; 9. Protruding rod; 10. Servo motor; 11. Gearbox; 12. Liquid inlet pipe; 121. Liquid inlet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This specific embodiment is a potassium nitrate cleaning device, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the potassium nitrate cleaning device includes a cleaning cylinder 1, a base frame 2 fixed at the bottom of the cleaning cylinder 1, a receiving cavity inside the cleaning cylinder 1, and a cleaning inner cylinder 5 horizontally fixed inside the receiving cavity. One end of the cleaning inner cylinder 5 extends out of the cleaning cylinder 1, and a discharge pipe 51 protrudes from the bottom of the end of the cleaning inner cylinder 5 extending out of the cleaning cylinder 1. A feed funnel 4 is installed at the end of the cleaning inner cylinder 5 away from the discharge pipe 51, and the top of the feed funnel 4 extends out of the cleaning cylinder 1, communicating with the cleaning cavity inside the cleaning inner cylinder 5. A material blocking net 6 is installed in the middle section of the cleaning inner cylinder 5, and a cleaning cavity is formed inside the cleaning inner cylinder 5 and the material blocking net 6. A liquid guide tube 7 is rotatably arranged inside the cavity. A material conveying blade 8 is installed on the outer edge of the liquid guide tube 7. A drain hole 71 is opened on the outer edge of the liquid guide tube 7. Several drain holes 71 are arranged in an equidistant array on the outer edge of the liquid guide tube 7. One end of the liquid guide tube 7 extends out of the cleaning cylinder 1. A drain pipe 72 is fixed to the end of the liquid guide tube 7 extending out of the cleaning cylinder 1. A gearbox 11 is installed at the end of the cleaning cylinder 1 away from the drain pipe 72. Several sets of gears are installed inside the gearbox 11. A servo motor 10 that drives the liquid guide tube 7 to rotate is installed on the gearbox 11. An inlet pipe 12 is fixed inside the cleaning cylinder 1.

[0029] By coordinating the inner cleaning cylinder 5, the material blocking net 6, the liquid guiding pipe 7, and the conveying blades 8 inside the cleaning cylinder 1, the raw material can enter the inner cleaning cylinder 5 through the feed funnel 4 during the cleaning of potassium nitrate crystals. The cleaning liquid can enter the connecting pipe 3 through the guide pipe 31, and then enter the liquid inlet pipe 12 through the connecting pipe 32 and exit through the liquid inlet 121 into the inner receiving cavity. It can also enter the cleaning cavity inside the inner cleaning cylinder 5 through the material blocking net 6 to assist in the cleaning of potassium nitrate crystals. The cleaned liquid flows through the liquid drain hole 71 on the liquid guiding pipe 7 and enters the drain pipe 72 and is discharged. The cleaned potassium nitrate crystals are discharged through the discharge pipe 51. This ensures the continuity of potassium nitrate crystal cleaning in subsequent operations and effectively improves the overall efficiency of potassium nitrate cleaning.

[0030] The inner edge of the liquid inlet pipe 12 is provided with a liquid inlet 121. There are several liquid inlets 121 arranged in a circular array with the center of the liquid inlet pipe 12 as the center. The liquid inlet pipe 12 is circular. The guide pipe 3 is connected to the liquid inlet pipe 12 through the connecting pipe 32. The top and bottom of the cleaning cylinder 1 are both provided with the guide pipe 3. One end of the guide pipe 3 is equipped with a conduit 31.

[0031] By setting equidistant liquid inlet pipes 12 and liquid inlet ports 121 on the liquid inlet pipes 12 inside the cleaning cylinder 1, liquid inlet treatment at multiple positions can ensure that potassium nitrate crystals at all positions inside the cleaning inner cylinder 5 can be effectively rinsed with liquid during subsequent work, thereby improving the overall cleaning effect of potassium nitrate crystals.

[0032] The material conveying blade 8 is spiral-shaped, and a protruding rod 9 is provided on the material conveying blade 8. The protruding rod 9 passes through the material conveying blade 8 laterally and is equidistantly arranged along the spiral base surface of the material conveying blade 8.

[0033] By setting a protruding rod 9 that runs horizontally through the conveyor blade 8, the potassium nitrate crystals can be agitated during operation by rotating the conveyor, which can achieve a better cleaning effect and avoid the situation where the potassium nitrate crystals clump together and cause inadequate cleaning.

[0034] Working principle:

[0035] Before auxiliary cleaning of potassium nitrate crystals, connect drain pipe 72 to drain pipe and guide pipe 31 to cleaning liquid pipe, and let raw material enter the inner cleaning cylinder 5 through feed funnel 4. Start servo motor 10, servo motor 10 drives the gear inside gearbox 11 to rotate, and then the gear inside gearbox 11 drives the guide pipe 7 to rotate as a whole. When the guide pipe 7 rotates, it drives the conveying blade 8 to rotate as a whole. When the conveying blade 8 rotates, it drives the potassium nitrate crystals to move along the axis of guide pipe 7. The protruding rod 9 rotates on the conveying blade 8 to assist in stirring the potassium nitrate crystals during the conveying process, thereby ensuring a better cleaning effect.

[0036] The cleaning solution enters the connecting pipe 3 through the conduit 31, and then enters the inlet pipe 12 through the connecting pipe 32. It is discharged into the internal receiving cavity through the inlet port 121 and enters the cleaning cavity inside the inner cleaning cylinder 5 through the material blocking net 6 on the inner cleaning cylinder 5 to assist in cleaning the potassium nitrate crystals. The cleaned liquid flows through the drain hole 71 on the liquid guiding pipe 7 and enters the drain pipe 72 and is discharged. The cleaned potassium nitrate crystals are discharged through the discharge pipe 51.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A potassium nitrate cleaning device comprising a cleaning cartridge (1), characterised in that, The cleaning cylinder (1) has an internal cavity, and a cleaning inner cylinder (5) is horizontally fixed inside the cavity. One end of the cleaning inner cylinder (5) extends out of the cleaning cylinder (1). A discharge pipe (51) is provided at the bottom of the end of the cleaning inner cylinder (5) extending out of the cleaning cylinder (1). A material blocking net (6) is provided in the middle section of the cleaning inner cylinder (5). The inner cleaning cylinder (5) and the material blocking net (6) are provided with a cleaning chamber. A liquid guide pipe (7) is rotatably arranged in the cleaning chamber. A material conveying blade (8) is installed at the outer edge of the liquid guide pipe (7). A drain hole (71) is provided at the outer edge of the liquid guide pipe (7). One end of the liquid guide pipe (7) extends out of the cleaning cylinder (1). A drain pipe (72) is fixed at the end of the liquid guide pipe (7) that extends out of the cleaning cylinder (1). A gearbox (11) is installed at the end of the cleaning cylinder (1) away from the drain pipe (72). A servo motor (10) that drives the liquid guide pipe (7) to rotate is installed on the gearbox (11). An inlet pipe (12) is fixed inside the cleaning cylinder (1).

2. The potassium nitrate cleaning apparatus of claim 1, wherein, The liquid inlet (121) is provided at the inner edge of the liquid inlet pipe (12), and the top and bottom of the cleaning cylinder (1) are provided with a guide pipe (3), and a conduit (31) is installed at one end of the guide pipe (3).

3. The potassium nitrate cleaning apparatus of claim 2, wherein, The inlet pipe (12) is annular, and the guide pipe (3) is connected to the inlet pipe (12) through the connecting pipe (32).

4. The potassium nitrate cleaning apparatus of claim 3, wherein, The liquid inlet (121) is provided in a plurality of manner, and the plurality of liquid inlets (121) are arranged in a circular array with the center of the liquid inlet pipe (12) as the center.

5. The potassium nitrate cleaning apparatus of claim 1, wherein, The drain holes (71) are provided in a plurality of manner, and the plurality of drain holes (71) are arranged in an equidistant array at the outer edge of the liquid guide tube (7).

6. The potassium nitrate cleaning apparatus of claim 1, wherein, The material conveying blade (8) is spiral in shape, and a protruding rod (9) is provided on the material conveying blade (8). The protruding rod (9) passes through the material conveying blade (8) laterally, and the protruding rod (9) is equidistantly arranged along the spiral base surface of the material conveying blade (8).

7. The potassium nitrate cleaning apparatus of claim 1, wherein, A feed funnel (4) is installed at one end of the inner cleaning cylinder (5) away from the discharge pipe (51). The top of the feed funnel (4) extends out of the cleaning cylinder (1), and the feed funnel (4) is connected to the cleaning chamber inside the inner cleaning cylinder (5).

8. The potassium nitrate cleaning apparatus of claim 1, wherein, A base frame (2) is fixed at the bottom of the cleaning cylinder (1).