Anti-leakage sampling device for nitro-sulfenyl compound fertilizer

By designing an anti-leak sampling device, using a sealing gasket and a pressure relief valve to maintain pressure blockage, combined with the precise control of the control rod and piston, the problem of pressure balance and sample volume control during the sampling process of nitrosulfide composite fertilizer is solved, and the rapid development of the Accurate sample extraction and reduce waste.

CN222336862UActive Publication Date: 2025-01-10ZHUMADIAN KAMENZI FERTILIZER CO LTD
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Patent Information

Application Number
CN202420903508.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-28
Publication Date
2025-01-10
Estimated Expiration
2034-04-28

AI Technical Summary

Technical Problem

During the sampling process of nitrosulfide-based composite fertilizer, it is difficult to ensure that the pressure does not leak and the sample size cannot be accurately controlled, resulting in pressure balance imbalance and sample waste.

Method used

A leak-proof sampling device including a sampling tube, a positioning cylinder, a movable cylinder, a pump, a sampling cup lid, a control rod and a piston is designed to achieve pressure sealing through a sealing gasket and a pressure relief valve, and to utilize the control rod and a piston. Accurately control the sample extraction volume to ensure sample accuracy and reduce waste.

Benefits of technology

It effectively prevents pressure leakage, maintains the pressure balance in the reactor, and achieves rapid and accurate sample extraction, reducing sample residue and waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-leakage sampling device for a nitro-sulfenyl compound fertilizer, and relates to the related technical field of fertilizer processing. The sampling device comprises a sampling pipe, a sample storage cup, a positioning cylinder, a sampling cup cover and a control rod, the upper portion of the sampling pipe is fixedly connected with a branch pipe in a penetrating mode, the end, away from the sampling pipe, of the branch pipe is fixed to the upper end of the sampling cup cover in a penetrating mode, the bottom of the sampling cup cover is rotationally connected with the sample storage cup, an air extractor is fixed to the sampling cup cover, and the control rod is inserted into the sampling pipe. The lower end of the control rod extends into the sampling pipe and is fixedly provided with a piston; and a movable cylinder is movably inserted into the inner cavity of the positioning cylinder. By arranging the sampling pipe, the positioning cylinder, the movable cylinder, the air exhauster, the sampling cup cover, the sample storage cup, the control rod, the piston and the branch pipe, the problems that the pressure cannot be ensured not to leak and cannot be kept balanced in the sampling process of the nitro-sulfenyl compound fertilizer are solved; the sampling amount of the sample cannot be accurately controlled in the sampling process, and fertilizer sample residues possibly exist in a sampling pipeline.
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Description

Technical Field

[0001] The utility model belongs to the technical field related to fertilizer processing, and particularly relates to a leakage-proof sampling device for nitric-sulfur-based compound fertilizers. Background Art

[0002] Nitrate-sulfur based compound fertilizer is a whole composed of different elements. Inorganic substances are called ion groups, and organic substances are called functional groups. It is composed of nitrate, phosphorus and potassium sulfate. There are various ways to make compound fertilizers. At present, the production methods of granular compound fertilizers mainly include slurry method, solid granulation method, partial slurry method, melting method, etc. Among them, the slurry method is more common. After the slurry is mixed, it is coated and granulated. However, after the slurry is prepared, sampling is usually required to detect whether its ingredients are qualified, so as to facilitate subsequent processing. However, there are still the following disadvantages in the sampling process:

[0003] 1. In the process of preparing nitrosulfur-based compound fertilizers, due to the different types of reactors, sealed mixing, pressurized dissolution, negative pressure extraction, etc. are sometimes required. At this time, it is necessary to ensure that the internal pressure is not leaked. How to not affect the pressure balance in the reactor during the sampling process is a major point and needs to be solved;

[0004] 2. Secondly, during the sampling process, it is necessary to control the sample quantity as accurately as possible to prevent overflow and excessive waste. However, with the current extraction method, it is easy to cause excessive sampling and failure to stop in time, or residual samples in the sampling pipeline causing waste. Utility Model Content

[0005] The utility model aims to provide a leakage-proof sampling device for nitro-sulfur based compound fertilizers. By arranging a sampling tube, a positioning tube, a movable tube, an air pump, a sampling cup cover, a sample storage cup, a control rod, a piston and a branch pipe, the utility model solves the problems that during the sampling process of the nitro-sulfur based compound fertilizers, the pressure cannot be guaranteed not to leak and the pressure balance cannot be maintained; the sample extraction amount cannot be accurately controlled during the sampling process, and there may be fertilizer sample residues in the sampling pipeline.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a nitric-sulfur-based compound fertilizer leakage prevention sampling device, comprising a sampling tube, a sample storage cup, a positioning cylinder, a sampling cup cover and a control rod. The upper part of the sampling tube is fixedly connected with a branch pipe, and one end of the branch pipe away from the sampling tube is fixedly connected with the upper end of the sampling cup cover. The bottom of the sampling cup cover is screwed with the sample storage cup. An air pump is fixed on the sampling cup cover, and an air pump at the air pump end of the air pump is downwardly connected and extended into the sampling cup cover for communication.

[0008] A control rod is inserted into the sampling tube, and the lower end of the control rod extends into the sampling tube and is fixed with a piston;

[0009] The positioning tube is fixed in the sampling hole of the reactor, a sealing gasket is fixed in the inner cavity of the positioning tube, and a movable tube is movably inserted into the inner part of the sealing gasket, and the upper end of the movable tube is threadedly fixed to the lower end of the sampling tube.

[0010] Furthermore, the portion of the branch pipe close to the sampling tube is an inclined bend section, the portion of the branch pipe close to the sampling cup cover is a right-angle bend section, the middle portion of the branch pipe is a horizontal straight pipe, and a control valve is fixed in the middle of the branch pipe.

[0011] Furthermore, a sealing cap is screwed onto the upper end of the sampling tube, and a thread is provided on the upper outer peripheral surface of the control rod and is threadedly connected to the sealing cap, and the upper end of the control rod extends out of the sealing cap and is fixed with a handwheel.

[0012] Furthermore, the outer peripheral surface of the lower part of the sampling tube is provided with through holes distributed in a ring array.

[0013] Furthermore, a limiting sealing plate is fixed to the bottom end of the movable cylinder, and the inner diameter of the limiting sealing plate is larger than the inner diameter of the positioning cylinder, and the limiting sealing plate is located below the positioning cylinder.

[0014] Furthermore, the sampling tube and the movable cylinder have the same outer diameter and the same inner diameter.

[0015] Furthermore, a pressure relief valve and a pressure gauge are fixed through the upper end of the sampling cup cover.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model solves the problem that the pressure cannot be guaranteed not to leak and the pressure balance cannot be maintained during the sampling process of nitro-sulfur-based compound fertilizer by arranging a sampling tube, a positioning tube, a movable tube, an air pump, a sampling cup cover, a sample storage cup, a control rod and a piston; the positioning tube is fixed on the sampling hole of the reactor, and the interior of the positioning tube is sealed with a movable tube and a sealing gasket to prevent leakage; the sampling chamber connects the sampling tube with the movable tube, extends the tube into the reactor to contact the fertilizer, and the air pump is used to draw the connected sampling cup cover and the internal space of the sample storage cup to form a negative pressure; at this time, the control rod and the piston are moved downward to connect the through hole to the fertilizer, and the fertilizer enters the sampling tube and the sample storage cup through the branch pipe to realize sampling; there will be no excessive pressure loss in the whole process, and the sampling is fast and accurate.

[0018] 2. The utility model solves the problems that the sample extraction amount cannot be accurately controlled during the sampling process and there may be residual fertilizer samples in the sampling pipeline by arranging a sampling tube, a branch pipe, a control rod, a piston, and a control valve; after the required sample is extracted, the control valve is immediately closed to obtain an accurate sample amount, and when taking out the sampling tube, it is directly moved up, and the residual fertilizer in the branch pipe and the sampling tube will flow back into the reactor through the through hole without waste, and then the control rod and the piston are moved up to seal the through hole to complete the removal, thereby minimizing pressure leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 This is a state diagram of a nitric-sulfur compound fertilizer leakage prevention sampling device on a reactor when preparing for sampling;

[0021] Figure 2 It is a cross-sectional view of a nitric-sulfur-based compound fertilizer leakage-proof sampling device when sampling in a reactor;

[0022] Figure 3 The present invention is a structural diagram of a nitric-sulfur-based compound fertilizer leakage prevention sampling device;

[0023] Figure 4 It is a cross-sectional view of the sampling pipe and branch pipe;

[0024] Figure 5 for Figure 4 A magnified view of the structure at A;

[0025] Figure 6 for Figure 4 A magnified view of the structure at B in FIG.

[0026] Figure 7 This is a diagram showing the position of the control rod and the piston when sampling the sampling tube;

[0027] Figure 8 is a cross-sectional view of the positioning cylinder;

[0028] Fig. 9 This is a connection diagram between the sampling cup cover and the sample storage cup;

[0029] Fig.10 for Fig. 9 Structural diagram of the sample cup lid after sectioning.

[0030] Reference numerals:

[0031] 1. Sampling tube; 101. Branch pipe; 1011. Control valve; 102. Sealing cover; 103. Through hole; 2. Sample storage cup; 3. Positioning cylinder; 301. Sealing gasket; 302. Movable cylinder; 3021. Limit sealing plate; 4. Sampling cup cover; 401. Pressure gauge; 402. Pressure relief valve; 403. Vacuum pump; 4031. Vacuum pipe; 5. Control rod; 501. Piston. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] See also Figure 1-10 As shown, the utility model is a nitric-sulfur-based compound fertilizer leakage prevention sampling device, comprising a sampling tube 1, a sample storage cup 2, a positioning tube 3, a sampling cup cover 4 and a control rod 5, the upper part of the sampling tube 1 is fixedly connected with a branch pipe 101, and the end of the branch pipe 101 away from the sampling tube 1 is fixedly connected with the upper end of the sampling cup cover 4, the bottom of the sampling cup cover 4 is screwed with the sample storage cup 2, and an air pump 403 is fixed on the sampling cup cover 4, and the air pump 4031 at the air pump end of the air pump 403 is downwardly penetrated and extended into the sampling cup cover 4 for communication;

[0034] The sampling tube 1 is mainly used for sampling. The sample is output to the sampling cup cover 4 through the branch pipe 101 and then stored in the sample storage cup 2. The pressure in the sample storage cup 2 can be reduced by the operation of the vacuum pump 403, forming a negative pressure to extract the sample.

[0035] A control rod 5 is inserted into the sampling tube 1, and the lower end of the control rod 5 extends into the sampling tube 1 and is fixed with a piston 501;

[0036] The control rod 5 can control the movement of the piston 501, and the piston 501 can block or not the through hole 103, thereby controlling the opening and closing of the passage between the inner cavity of the sampling tube 1 and the external fertilizer;

[0037] The positioning cylinder 3 is fixed in the sampling hole of the reactor, a sealing gasket 301 is fixed in the inner cavity of the positioning cylinder 3, and a movable cylinder 302 is inserted into the inner part of the sealing gasket 301, and the upper end of the movable cylinder 302 is screwed and fixed with the lower end of the sampling tube 1;

[0038] The sealing gasket 301 is used to maintain the airtightness between the positioning cylinder 3 and the movable cylinder 302. The movable cylinder 302 is connected to the sampling tube 1, so that the sampling tube 1 can subsequently enter the reactor under a closed condition.

[0039] The part of the branch pipe 101 close to the sampling tube 1 is an inclined curved pipe section, the part of the branch pipe 101 close to the sampling cup cover 4 is a right-angle curved pipe section, the middle part of the branch pipe 101 is a horizontal straight pipe, and a control valve 1011 is fixed in the middle of the branch pipe 101;

[0040] The bent pipe section allows the subsequent residual fertilizer to flow back into the reactor, and the right-angle bent pipe end is used to guide the fertilizer into the sample storage cup 2, and the control valve 1011 can quickly control the flow of fertilizer during sampling, so as to accurately control the sampling amount.

[0041] The upper end of the sampling tube 1 is screwed with a cover 102, and the upper outer peripheral surface of the control rod 5 is provided with a thread and is threadedly connected with the cover 102. The upper end of the control rod 5 extends out of the cover 102 and is fixed with a hand wheel;

[0042] The control rod 5 can be raised or lowered by rotating the control rod 5 with a hand wheel, thereby raising or lowering the piston 501 at the bottom thereof, and determining whether the piston 501 blocks the through hole 103 or not.

[0043] The outer peripheral surface of the lower part of the sampling tube 1 is provided with through holes 103 distributed in a ring array; the through holes 103 are used to connect the fertilizer in the reactor to form a passage and enter the sampling tube 1.

[0044] A limit sealing plate 3021 is fixed to the bottom end of the movable cylinder 302 , and the inner diameter of the limit sealing plate 3021 is larger than the inner diameter of the positioning cylinder 3 . The limit sealing plate 3021 is located below the positioning cylinder 3 , thus limiting the movable cylinder 302 from moving upward and detaching from the positioning cylinder 3 .

[0045] The outer diameters and inner diameters of the sampling tube 1 and the movable cylinder 302 are equal, so that the sampling tube 1 can easily pass through the sealing gasket 301 and enter the reactor.

[0046] A pressure relief valve 402 and a pressure gauge 401 are also fixed through the upper end of the sampling cup cover 4, which are used to observe the pressure in the sample storage cup 2 and relieve pressure.

[0047] The specific working principle of the utility model is as follows: first, the positioning cylinder 3 is fixed on the sampling hole of the reactor, and the interior thereof cooperates with the movable cylinder 302 and the sealing gasket 301 to seal and plug it, so that it cannot leak, and then the upper end of the movable cylinder 302 is screwed and fixed with the lower end of the sampling tube 1, at this time, the piston 501 is in position to plug all the through holes 103, and then, the sampling tube 1 is extended into the reactor to contact the fertilizer, at this time, the vacuum pump 403 works to reduce the pressure in the sample storage cup 2, forming a negative pressure to extract the sample, at this time, the sampling tube 1 and the branch pipe 101 are both under negative pressure, and then the control rod 5 is rotated by the hand wheel to make the control rod 5 drop, and the piston 50 1 descends, at this time, the through hole 103 is connected to the fertilizer, and the fertilizer enters the sampling tube 1 through the branch pipe 101 and enters the sample storage cup 2 to realize sampling. There will be no excessive pressure loss in the whole process, and the sampling is fast and accurate. When the liquid in the sample storage cup 2 is almost full, the control valve 1011 is immediately closed to obtain the required sample, and then the sampling tube 1 is lifted up to make its bottom end higher than the liquid level in the reactor. At this time, under the action of gravity, the residual sample in the sampling tube 1 and the branch pipe 101 will flow back into the reactor through the through hole 103, and then move up the control to make the piston 501 block the through hole 103, and then reverse the operation according to the previous installation steps to take out the sampling tube 1.

[0048] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A nitric-sulfur compound fertilizer leakage prevention sampling device, comprising a sampling tube (1), a sample storage cup (2), a positioning cylinder (3), a sampling cup cover (4) and a control rod (5), characterized in that: The upper part of the sampling tube (1) is fixedly connected with a branch tube (101) in a through-type manner, and the end of the branch tube (101) away from the sampling tube (1) is fixedly connected to the upper end of the sampling cup cover (4), the bottom of the sampling cup cover (4) is screwed with a sample storage cup (2), and the sampling cup cover (4) is fixed with a vacuum pump (403), and the vacuum pipe (4031) at the vacuum end of the vacuum pump (403) is downwardly connected to the sampling cup cover (4) and connected to the sampling cup cover (4); A control rod (5) is inserted into the sampling tube (1), and the lower end of the control rod (5) extends into the sampling tube (1) and is fixed with a piston (501); The positioning tube (3) is fixedly inserted into the sampling hole of the reaction kettle, a sealing gasket (301) is fixed in the inner cavity of the positioning tube (3), and a movable tube (302) is movably inserted into the inner part of the sealing gasket (301), and the upper end of the movable tube (302) is screwed and fixed to the lower end of the sampling tube (1) by means of a thread.

2. The nitric-sulfur based compound fertilizer leakage prevention sampling device according to claim 1, characterized in that: The portion of the branch pipe (101) close to the sampling tube (1) is an inclined curved pipe section, the portion of the branch pipe (101) close to the sampling cup cover (4) is a right-angle curved pipe section, the middle portion of the branch pipe (101) is a horizontal straight pipe, and a control valve (1011) is fixed in the middle of the branch pipe (101).

3. The nitric-sulfur based compound fertilizer leakage prevention sampling device according to claim 1, characterized in that: The upper end of the sampling tube (1) is screwed with a sealing cap (102), and the upper outer peripheral surface of the control rod (5) is provided with a thread and is threadedly connected to the sealing cap (102). The upper end of the control rod (5) extends out of the sealing cap (102) and is fixed with a hand wheel.

4. The nitric-sulfur based compound fertilizer leakage prevention sampling device according to claim 1, characterized in that: The outer peripheral surface of the lower part of the sampling tube (1) is provided with through holes (103) distributed in a ring array.

5. The nitric-sulfur based compound fertilizer leakage prevention sampling device according to claim 1, characterized in that: A limiting sealing plate (3021) is fixed to the bottom end of the movable cylinder (302), and the inner diameter of the limiting sealing plate (3021) is larger than the inner diameter of the positioning cylinder (3), and the limiting sealing plate (3021) is located below the positioning cylinder (3).

6. The nitric-sulfur compound fertilizer leakage prevention sampling device according to claim 1, characterized in that: The sampling tube (1) and the movable cylinder (302) have the same outer diameter and the same inner diameter.

7. The nitric-sulfur based compound fertilizer leakage prevention sampling device according to claim 1, characterized in that: A pressure relief valve (402) and a pressure gauge (401) are also fixedly passed through the upper end of the sampling cup cover (4).