Food heavy metal detector

Abstract

The utility model discloses a food heavy metal detector which comprises an equipment base frame, the equipment base frame comprises an air treatment cavity and a wet digestion cavity, the air treatment cavity is provided with a poison gas kettle, the bottom of the equipment base frame is provided with a detector body, the wet digestion cavity comprises an acid liquid kettle and a digestion kettle connected with the acid liquid kettle, and the top of the digestion kettle is provided with a guide pipe. The conduit leads to the poison gas kettle; the bottom of the digestion kettle is connected with a filter pipe, and an outlet of the filter pipe is connected with the detector body; a heating plate is also arranged at the bottom of the digestion kettle and is used for heating mixed liquid in the digestion kettle. Acid liquor is added into a to-be-detected sample through the wet digestion cavity, the bottom heating plate is used for heating, toxic gas is collected into the toxic gas kettle through the guide pipe, the toxic gas is purified into harmless gas and then discharged, and the safety of a user is guaranteed. Digested digestion liquid reaches the detector body through the filter tube for detection. The device is simple in overall operation, convenient to carry and more convenient to use during food heavy metal detection.

Description

Technical Field

[0001] The utility model relates to the technical field of food safety detection equipment, in particular to a food heavy metal detector. Background Art

[0002] In current technology, food heavy metal detectors are electrochemical analysis instruments developed to meet the needs of rapid heavy metal detection in water, food, soil and other samples. Multiple sets of parameters can be set according to customer needs. It is suitable for heavy metal detection in different sample matrices. The detection items include lead, cadmium, copper, zinc, mercury, arsenic, chromium, and nickel. When conducting food heavy metal detection, the food must be digested first. The wet digestion method is a method for determining the content of inorganic salts in food. The operation process of this method is: in an acidic solution, add sulfuric acid, nitric acid, perchloric acid, hydrogen peroxide, potassium permanganate and other oxidants to the sample, and heat and digest it to completely decompose and oxidize the organic matter, which escapes in a gaseous state, and the components to be tested are converted into an inorganic state and exist in the digestion fluid. The characteristics of the wet method are fast decomposition speed and short time. The low heating temperature can reduce the volatilization and dissipation loss of metals. The disadvantage is that a large amount of harmful gases are easily produced during digestion, and it needs to be operated in a fume hood. Most of the existing food heavy metal detectors are separate detection instruments, which can only detect digestive juices that have been treated with the wet digestion method separately. However, it is rather troublesome to treat food with the wet digestion method separately. When testing food for heavy metals, it is necessary to carry a variety of equipment and instruments, which is inconvenient and not easy to extract heavy metal substances in food, thus affecting the progress of testing.

[0003] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0004] In order to meet the above requirements, the purpose of the utility model is to provide a food heavy metal detector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A food heavy metal detector, comprising:

[0007] An equipment frame, the equipment frame comprising an air treatment chamber and a wet digestion chamber, the air treatment chamber being provided with a poison gas kettle, a detector body being provided at the bottom of the equipment frame, the wet digestion chamber comprising an acid kettle, a digestion kettle connected to the acid kettle, a conduit being provided at the top of the digestion kettle, the conduit leading to the poison gas kettle;

[0008] The bottom of the digestion kettle is connected with a filter tube, and the outlet of the filter tube is connected with the detector body;

[0009] A heating plate is also provided at the bottom of the digestion kettle, and the heating plate is used to heat the mixed liquid in the digestion kettle.

[0010] In one embodiment, the height of the poison gas kettle is higher than that of the digestion kettle.

[0011] In one embodiment, the air processing chamber is further provided with a fan.

[0012] In one embodiment, the equipment base is provided with a switch.

[0013] Compared with the prior art, the utility model has the following beneficial effects: acid is added to the sample to be tested through the wet digestion chamber, heated by the bottom heating plate, and the toxic gas is collected into the gas kettle through the conduit, purified into harmless gas and then discharged, thus ensuring the safety of the user. The digested liquid reaches the detector body through the filter tube for testing. The overall operation of the device is simple, easy to carry, and more convenient for use in heavy metal testing of food.

[0014] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a food heavy metal detector.

[0016] Reference numerals

[0017] 101 Equipment base frame 102 Air handling chamber

[0018] 103 Wet digestion chamber 104 Poison gas kettle

[0019] 105 Detector body 106 Acid kettle

[0020] 107 Digestion tank 108 Catheter

[0021] 109 filter tube 110 heating plate

[0022] 111 Fan 112 Switch DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0029] like Figure 1 As shown, the present application proposes a food heavy metal detector, including an equipment frame 101, the equipment frame 101 includes an air processing chamber 102 and a wet digestion chamber 103, the air processing chamber 102 is provided with a poison gas kettle 104, a detector body 105 is provided at the bottom of the equipment frame 101, the wet digestion chamber 103 includes an acid kettle 106, a digestion kettle 107 connected to the acid kettle 106, a conduit 108 is provided on the top of the digestion kettle 107, and the conduit 108 leads to the poison gas kettle 104; a filter tube 109 is connected to the bottom of the digestion kettle 107, and the outlet of the filter tube 109 is connected to the detector body 105;

[0030] A heating plate 110 is also provided at the bottom of the digestion tank 107 , and the heating plate 110 is used to heat the mixed liquid in the digestion tank 107 .

[0031] In one embodiment, the height of the poison gas kettle 104 is higher than that of the digestion kettle 107 , and the air treatment chamber 102 is further provided with a fan 111 .

[0032] In one embodiment, the equipment base frame 101 is provided with a switch 112, and the switch 112 is used to control the injection of acid and the absorption of poisonous gas.

[0033] In summary, acid is added to the sample to be tested through the wet digestion chamber, heated by the bottom heating plate, and the toxic gas is collected into the gas kettle through the catheter, purified into harmless gas and then discharged, ensuring the safety of the user. The digested liquid reaches the detector body through the filter tube for testing. The overall operation of the device is simple, easy to carry, and more convenient for use in heavy metal detection of food.

[0034] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the utility model.

Claims

1. A food heavy metal detector, characterized in that: include: An equipment frame, the equipment frame comprising an air treatment chamber and a wet digestion chamber, the air treatment chamber being provided with a poison gas kettle, a detector body being provided at the bottom of the equipment frame, the wet digestion chamber comprising an acid kettle, a digestion kettle connected to the acid kettle, a conduit being provided at the top of the digestion kettle, the conduit leading to the poison gas kettle; The bottom of the digestion kettle is connected with a filter tube, and the outlet of the filter tube is connected with the detector body; A heating plate is also provided at the bottom of the digestion kettle, and the heating plate is used to heat the mixed liquid in the digestion kettle.

2. The food heavy metal detector according to claim 1, characterized in that: The height of the poison gas kettle is higher than that of the digestion kettle.

3. The food heavy metal detector according to claim 2, characterized in that: The air processing chamber is also provided with a fan.

4. The food heavy metal detector according to claim 3, characterized in that: The equipment base is provided with a switch.

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