Azotometer for feed detection

Abstract

The utility model discloses an azotometer for feed detection, and relates to the technical field of feed detection. The device comprises a reaction tank and a gas path assembly assembled at the top of the reaction tank, the reaction tank comprises a tank body and a filtering assembly, and the filtering assembly comprises a positioning ring attached to the annular edge of the top of the tank body, a primary filtering cylinder fixed to the edge of the inner ring of the positioning ring and a deep filtering cylinder coaxially fixed to the edge of the outer ring of the positioning ring. The gas circuit assembly comprises an annular exhaust grid, an annular baffle rotationally installed in the annular exhaust grid in a matched mode, a distribution base installed on the inner ring of the annular exhaust grid in a threaded matched mode, and a gas inlet pipe and a gas outlet pipe which are connected to the peripheral side of the distribution base. Through the design of the multi-stage filtering assembly, efficient impurity removal is achieved, the exhaust port of the annular exhaust grating and the annular baffle are arranged in a matched mode, flexible control over gas exhaust is achieved, the annular exhaust grating and the exhaust pipe are arranged in a distinguished mode, and nitrogen-containing gas can be conveniently and differentially collected.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed detection, in particular to a nitrogen determination instrument for feed detection. Background Art

[0002] Protein content is one of the important indicators for evaluating feed quality. Protein content is usually obtained indirectly by measuring the nitrogen content in the feed. Nitrogen determination is a commonly used method for determining the nitrogen content in a sample, usually based on the Kjeldahl method. This method mainly includes four steps: sample digestion, distillation, absorption, and titration. Among them, the digestion process converts the organic nitrogen in the sample into inorganic ammonium salt form, which is then converted into ammonia gas by distillation and captured. Finally, the amount of ammonia gas is measured by titration to calculate the nitrogen content in the sample. The commonly used nitrogen determination devices currently have the following problems when used:

[0003] The entire process may take several hours, which is not conducive to rapid testing; it requires multiple transfers and processing, which is prone to errors and increases the complexity of testing; impurities may be introduced during the processing, affecting the accuracy of the test results.

[0004] To this end, we provide a nitrogen analyzer for feed testing to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a nitrogen determination instrument for feed detection, which solves the problems of complicated operation and low efficiency of the extraction device used in the existing feed nitrogen determination detection by setting a multi-stage filtering structure and optimizing the extraction structure of the nitrogen element in the feed.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a nitrogen analyzer for feed detection, comprising a reaction tank for containing feed raw materials, and an air path component assembled on the top of the reaction tank;

[0008] The reaction tank includes a tank body and a filter assembly installed inside the tank body, wherein the filter assembly includes a positioning ring that fits with the annular edge of the top of the tank body, a primary filter cartridge fixed at the inner edge of the positioning ring, a depth filter cartridge coaxially fixed to the outer edge of the positioning ring, a sealing seat that seals with the bottom of the depth filter cartridge, and a connecting portion that is integrally fixed to the upper side of the sealing seat, wherein the connecting portion is threadably mounted on the bottom of the primary filter cartridge;

[0009] The air path assembly includes an annular exhaust grille coaxially fixed to the upper side of the positioning ring, an annular baffle rotatably adapted to be installed inside the annular exhaust grille, a distribution seat threadedly adapted to be installed on the inner ring of the annular exhaust grille, and an air inlet pipe and an exhaust pipe connected to the circumferential side of the distribution seat.

[0010] The utility model is further configured such that the annular exhaust grille has a built-in filter layer, and exhaust ports are equidistantly provided on the circumference of the annular exhaust grille, and the internal cavity of the annular exhaust grille is communicated with the interior of the tank body.

[0011] The utility model is further configured such that the upper edge of the annular baffle is configured as a serrated structure, and an opening is provided on the peripheral side of the annular baffle to match the exhaust port of the annular exhaust grille.

[0012] The utility model is further configured such that a control component is provided on the periphery of the tank body, wherein the control component includes a control panel and a controller fixed on the side of the tank body, wherein the control panel is connected to the controller via a wire, and the controller is fixed on the top of the distribution seat, and the internal valve components of the controller cooperate with the air intake pipe and the exhaust pipe.

[0013] The utility model is further configured such that a base is fixed to the bottom of the tank body, and the base includes a base, ears integrally arranged on the periphery of the base, a microwave dish fixed to the upper side of the base, and a heating dish installed on the upper part of the microwave dish.

[0014] The present invention is further configured such that the heating plate is located between the bottom of the tank body and the microwave plate, and the microwave plate is connected to an external power supply.

[0015] The present invention is further configured such that both the primary filter cartridge and the depth filter cartridge are hollow structures, and the hollow interval of the depth filter cartridge is smaller than the hollow interval of the primary filter cartridge.

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

[0017] 1. This utility model realizes efficient impurity removal through the design of multi-stage filter components. The hollow separation design of the primary filter cartridge and the depth filter cartridge can effectively filter out particles of different sizes and reduce the impact of impurities on the test results. The coordinated use of the sealing seat and the connecting part ensures the integrity of the filter component and facilitates its loading and unloading.

[0018] 2. The utility model realizes flexible control of gas emission through the coordinated setting of the exhaust port of the annular exhaust grille and the annular baffle. The opening and closing of the exhaust port can be achieved by rotating the annular baffle, which can be flexibly adjusted according to different exhaust requirements, thereby enhancing the stability and reliability of the system. The separate setting of the annular exhaust grille and the exhaust pipe facilitates the separate collection of nitrogen-containing gases.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a nitrogen analyzer for feed testing.

[0022] Figure 2 This is a schematic diagram of the assembly of the annular exhaust grille and the tank body in a nitrogen analyzer for feed testing.

[0023] Figure 3 This is a schematic diagram of the assembly of the filter component in a nitrogen analyzer used for feed testing.

[0024] Figure 4 This is a schematic diagram of the tank structure of a nitrogen analyzer used for feed testing.

[0025] Figure 5 This is a schematic diagram of the structure of the filter component in a nitrogen analyzer used for feed testing.

[0026] Figure 6 This is a schematic diagram of the positions of the depth filter cartridge and the primary filter cartridge in a nitrogen analyzer for feed testing.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Base; 101. Base; 102. Ear seat; 103. Microwave plate; 104. Heating plate; 2. Reaction tank; 201. Tank body; 202. Filter assembly; 202a. Positioning ring; 202b. Primary filter cartridge; 202c. Depth filter cartridge; 202d. Sealing seat; 202e. Connecting part; 3. Control assembly; 301. Control panel; 302. Controller; 4. Gas path assembly; 401. Annular exhaust grille; 402. Exhaust port; 403. Distribution seat; 404. Inlet pipe; 405. Exhaust pipe; 406. Annular baffle. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-6 The utility model is a nitrogen analyzer for feed detection, comprising a reaction tank 2 for containing feed raw materials, and a gas path component 4 assembled on the top of the reaction tank 2;

[0032] The reaction tank 2 includes a tank body 201 and a filter assembly 202 installed inside the tank body 201, wherein the filter assembly 202 includes a positioning ring 202a that fits with the annular edge of the top of the tank body 201, a primary filter cartridge 202b fixed to the inner edge of the positioning ring 202a, a depth filter cartridge 202c coaxially fixed to the outer edge of the positioning ring 202a, a sealing seat 202d that seals with the bottom of the depth filter cartridge 202c, and a connecting portion 202e that is integrally fixed to the upper side of the sealing seat 202d, wherein the connecting portion 202e is threadedly adapted to be installed with the bottom of the primary filter cartridge 202b;

[0033] The gas circuit assembly 4 includes an annular exhaust grille 401 coaxially fixed to the upper side of the positioning ring 202a, an annular baffle 406 rotatably mounted inside the annular exhaust grille 401, a distribution seat 403 threadedly mounted on the inner ring of the annular exhaust grille 401, and an air inlet pipe 404 and an exhaust pipe 405 connected to the circumference of the distribution seat 403;

[0034] Multi-stage filtration is achieved through the built-in filter component 202 of the reaction tank 2, which effectively reduces the interference of impurities in the sample and ensures the purity of the gas, thereby improving the detection accuracy. The setting of the filter component 202 facilitates the subsequent cleaning of feed raw material residues. The gas path component 4 provides a reasonable gas flow path, and the controllability of the gas flow rate and flow direction also enhances the stability and reliability of the extraction and detection system.

[0035] Specifically, the annular exhaust grille 401 has a built-in filter layer, and exhaust ports 402 are equidistantly provided on the circumference of the annular exhaust grille 401. The internal cavity of the annular exhaust grille 401 is connected to the interior of the tank body 201. The upper edge of the annular baffle 406 is arranged in a serrated structure, and openings are provided on the circumference of the annular baffle 406 to match the exhaust ports 402 of the annular exhaust grille 401.

[0036] Furthermore, the primary filter cartridge 202b and the depth filter cartridge 202c are both hollow structures, and the hollow intervals of the depth filter cartridge 202c are smaller than the hollow intervals of the primary filter cartridge 202b.

[0037] The operation process of this embodiment is as follows:

[0038] 1. Place an appropriate amount of feed sample into the tank 201 and add reagents and catalysts for sample decomposition (the specific reagent components and catalyst selection are not limited here). The tank 201 and the distribution seat 403 form a closed container for loading the feed sample to be tested;

[0039] Second, the feed raw material particles or solid catalysts are in contact with the decomposition solution built into the tank 201. The primary filter cartridge 202b is used to initially filter larger particles, and the depth filter cartridge 202c is used to further filter smaller particles. As the solid particles continue to dissolve, the remaining solid particles are always located inside the primary filter cartridge 202b or the depth filter cartridge 202c, facilitating subsequent cleaning. The primary filter cartridge 202b, the depth filter cartridge 202c, and the sealing seat 202d form a complete filtration system under the action of the connecting portion 202e. The threaded adapter installation of the connecting portion 202e facilitates its assembly and disassembly, and is used for subsequent rapid cleaning of the filter assembly 202.

[0040] 3. Open or close the exhaust pipe 405 or the exhaust port 402 on the side of the annular exhaust grille 401 according to actual exhaust requirements. The exhaust pipe 405 is used to discharge nitrogen-containing gases and cooperates with an external titration detection device, while the annular exhaust grille 401 is used to discharge waste gases from the decomposition reaction. The opening and closing of the exhaust port 402 is achieved by rotating the annular baffle 406. Furthermore, during the exhaust gas discharge process, it is purified by the built-in filter layer of the annular exhaust grille 401 to ensure its safe discharge.

[0041] 4. Open or close the air inlet pipe 404 according to the actual exhaust demand. The air inlet pipe 404 is used to introduce inert gas or reaction gas (determined by the actual reaction method and reaction stage);

[0042] 5. Calculate the nitrogen content in the feed sample based on the amount of nitrogen-containing gas collected.

[0043] Example 2

[0044] See also Figure 1-4 Based on the first specific embodiment, a control assembly 3 is provided on the periphery of the tank body 201. The control assembly 3 includes a control panel 301 and a controller 302 fixed to the side of the tank body 201. The control panel 301 is connected to the controller 302 via a wire. The controller 302 is fixed to the top of the distribution seat 403. The internal valve of the controller 302 cooperates with the air inlet pipe 404 and the exhaust pipe 405. A base 1 is fixed to the bottom of the tank body 201. The base 1 includes a base 101, an ear seat 102 integrally provided on the periphery of the base 101, a microwave dish 103 fixed to the upper side of the base 101, and a heating dish 104 mounted on the upper part of the microwave dish 103.

[0045] By setting up the heating system in the base 1, the speed of sample decomposition is significantly improved and the detection cycle is shortened. The control component 3 allows the user to more conveniently control various parameters of the equipment, thereby improving the accuracy and repeatability of the experiment.

[0046] Specifically, the heating plate 104 is located between the bottom of the tank 201 and the microwave plate 103 , and the microwave plate 103 is connected to an external power source.

[0047] The operation process of this embodiment is as follows:

[0048] 1. Setting appropriate parameters such as temperature, time and gas flow rate through the control panel 301;

[0049] Second, the microwave dish 103 is turned on. The heat of the microwave dish 103 is conducted through the heating dish 104 to heat the solid-liquid mixture inside the tank body 201 .

[0050] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A nitrogen analyzer for feed detection, comprising a reaction tank (2) for containing feed raw materials, and an air path component (4) assembled on the top of the reaction tank (2); characterized in that: The reaction tank (2) comprises a tank body (201) and a filter assembly (202) installed inside the tank body (201), wherein the filter assembly (202) comprises a positioning ring (202a) fitted with the annular edge of the top of the tank body (201), a primary filter cartridge (202b) fixed at the inner edge of the positioning ring (202a), a depth filter cartridge (202c) coaxially fixed to the outer edge of the positioning ring (202a), a sealing seat (202d) sealingly fitted to the bottom of the depth filter cartridge (202c), and a connecting portion (202e) integrally fixed to the upper side of the sealing seat (202d), wherein the connecting portion (202e) is threadedly adapted to be installed with the bottom of the primary filter cartridge (202b); The air path assembly (4) comprises an annular exhaust grille (401) coaxially fixed to the upper side of a positioning ring (202a), an annular baffle (406) rotatably mounted inside the annular exhaust grille (401), a distribution seat (403) threadedly mounted on the inner ring of the annular exhaust grille (401), and an air inlet pipe (404) and an exhaust pipe (405) connected to the circumference of the distribution seat (403).

2. A nitrogen analyzer for feed detection according to claim 1, characterized in that, The annular exhaust grille (401) has a built-in filter layer, and exhaust ports (402) are equidistantly provided around the annular exhaust grille (401). The internal cavity of the annular exhaust grille (401) is in communication with the interior of the tank body (201).

3. A nitrogen analyzer for feed detection according to claim 1, characterized in that, The upper edge of the annular baffle (406) is provided with a sawtooth structure, and an opening is provided on the circumference of the annular baffle (406) to match the exhaust port (402) of the annular exhaust grille (401).

4. A nitrogen analyzer for feed detection according to claim 1, characterized in that, A control assembly (3) is provided on the periphery of the tank body (201), wherein the control assembly (3) comprises a control panel (301) and a controller (302) fixed to the side of the tank body (201), wherein the control panel (301) is connected to the controller (302) via a wire, and the controller (302) is fixed to the top of the distribution seat (403), and the internal valve of the controller (302) cooperates with the air inlet pipe (404) and the exhaust pipe (405).

5. A nitrogen analyzer for feed detection according to claim 1, characterized in that, A base (1) is fixed to the bottom of the tank body (201), wherein the base (1) comprises a base (101), an ear seat (102) integrally arranged on the circumference of the base (101), a microwave dish (103) fixed to the upper side of the base (101), and a heating dish (104) installed on the upper part of the microwave dish (103).

6. A nitrogen analyzer for feed detection according to claim 5, characterized in that: The heating plate (104) is located between the bottom of the tank body (201) and the microwave plate (103), and the microwave plate (103) is connected to an external power supply.

7. A nitrogen analyzer for feed detection according to claim 1, characterized in that: The primary filter cartridge (202b) and the depth filter cartridge (202c) are both hollow structures, and the hollow spacing of the depth filter cartridge (202c) is smaller than the hollow spacing of the primary filter cartridge (202b).

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