Waste gas exhaust equipment for food heavy metal detection instrument

Abstract

The utility model relates to waste gas exhaust equipment for a food heavy metal detection instrument. The waste gas exhaust equipment comprises a tank body, a connecting pipe, a hose, a joint assembly, a mixing mechanism and a filtering assembly, the tank body is filled with a diluting solvent, the connecting pipe is communicated with the peripheral surface of the tank body, and a connecting pipe between the connecting pipe and the tank body is positioned above the liquid level of the diluting solvent; the hose communicates with the end, away from the tank body, of the connecting pipe. According to the waste gas exhaust equipment for the food heavy metal detection instrument, the hose is communicated with the exhaust end of the food metal detection instrument through the connector assembly, then waste gas generated by the food metal detection instrument is conveyed into the tank body through the hose and the connecting pipe, and a diluting solvent in the tank body is extracted through the mixing mechanism and makes contact with the waste gas; meanwhile, heat in the waste gas is absorbed through the normal-temperature diluting solvent, so that the temperature of the waste gas is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment of heavy metal detection instruments, in particular to waste gas discharge equipment for food heavy metal detection instruments. Background Art

[0002] The determination of heavy metal content in food requires the use of strong acid to digest and carbonize physically crushed food, so that substances such as carbohydrates, proteins and fats are digested and emitted in the form of gas, while substances such as heavy metals that are not easy to digest are left behind and then extracted chemically for subsequent analysis.

[0003] In the prior art, food sampling ranges from a few grams to tens of grams. The waste gas generated after strong acid digestion is mostly acidic and has a certain corrosiveness. At the same time, during the digestion process, the strong acid reacts with the chemical components of the food to generate a large amount of heat, which will be discharged along with the waste gas, which will have adverse effects on the human body and the environment and needs to be properly handled during the digestion process. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a waste gas discharge device for food heavy metal detection instruments, which solves the problem that the waste gas generated after excessively strong acid digestion is mostly acidic and has a certain degree of corrosiveness. At the same time, during the digestion process, the strong acid reacts with the chemical components of the food to generate a large amount of heat, which will be discharged together with the waste gas, causing adverse effects on the human body and the environment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas discharge device for a food heavy metal detection instrument, comprising a tank body, a connecting pipe, a hose, a joint assembly, a mixing mechanism and a filter assembly;

[0006] The interior of the tank is filled with a dilution solvent, the connecting pipe is connected to the outer peripheral surface of the tank, and the connecting pipe and the connecting pipe of the tank are located above the liquid level of the dilution solvent;

[0007] The hose is connected to the end of the connecting pipe away from the tank body, the joint assembly is arranged at the end of the hose away from the connecting pipe, and the hose is connected to the exhaust end of the external food metal detection instrument through the joint assembly, so that the exhaust gas can be transported to the inside of the tank body along the hose and the connecting pipe;

[0008] The mixing mechanism is arranged inside the tank body, and the mixing mechanism comprises at least two drainage pipes, a pump body and a water spray ring;

[0009] At least two of the drainage pipes are connected to the tank body, the pump body is connected between at least two drainage pipes, and the water spray ring is installed on the inner wall of the tank body and is connected to the upper drainage pipe.

[0010] Furthermore, at least two atomizing nozzles are connected to the inner side of the water spray ring.

[0011] Furthermore, the dilution solvent is a dilute potassium hydroxide solution, and the drainage pipe is a PVC plastic pipe.

[0012] Furthermore, at least two of the drainage pipes are respectively connected to the input end and the output end of the pump body.

[0013] Furthermore, the joint assembly includes a limit ring installed at one end of the hose away from the connecting pipe, a rotating part is sleeved on the outer side of the hose, and the inner side of the rotating part is threadedly connected to a connector whose end is connected to the exhaust end of an external food metal detection instrument.

[0014] Furthermore, the filter assembly is arranged on the top of the tank body, and the filter assembly includes a filter cartridge threadedly connected to the outside of the tank body, an adsorption layer is installed inside the filter cartridge, and a filter layer is arranged on the adsorption layer.

[0015] Furthermore, a cover plate is detachably mounted on the inner wall of the filter cartridge near its upper end surface, and a plurality of through holes for exhaust are opened inside the cover plate.

[0016] Furthermore, the adsorption layer is an activated carbon layer, and the filtration layer is a sponge layer.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The waste gas exhaust device for the food heavy metal detection instrument connects the hose to the exhaust end of the food metal detection instrument through the joint assembly, and then transports the waste gas generated by the food metal detection instrument to the inside of the tank through the hose and the connecting pipe, and extracts the dilution solvent inside the tank through the mixing mechanism and contacts with the waste gas to dilute the acidic substances in the waste gas, and absorbs the heat in the waste gas through the dilution solvent at room temperature to reduce the temperature of the waste gas.

[0019] 2. The waste gas exhaust equipment used in the food heavy metal detection instrument, the waste gas after contact with the diluted solvent rises with the tank body, and is discharged from the upper opening of the tank body to the inside of the filter component. The waste gas is first adsorbed by the adsorption layer inside the filter component, and then filtered again by the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 4 This is a schematic diagram of the filter assembly of the utility model.

[0024] In the figure: 1. tank body; 2. connecting pipe; 3. hose; 4. joint assembly; 401. limiting ring; 402. rotating part; 403. connecting head; 5. mixing mechanism; 501. pump body; 502. drain pipe; 503. water spray ring; 6. filter assembly; 601. filter cartridge; 602. adsorption layer; 603. filter layer. DETAILED DESCRIPTION

[0025] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-2 In this embodiment, a waste gas discharge device for a food heavy metal detection instrument is used to treat the waste gas discharged by the food heavy metal detection instrument.

[0027] Specifically, it includes a tank body 1, a connecting pipe 2, a hose 3, a joint assembly 4, a mixing mechanism 5 and a filtering assembly 6; the interior of the tank body 1 is filled with a diluting solvent, the connecting pipe 2 is connected to the outer peripheral surface of the tank body 1, and the connecting pipe 2 and the connecting pipe of the tank body 1 are located above the liquid surface of the diluting solvent; the hose 3 is connected to the end of the connecting pipe 2 away from the tank body 1, the joint assembly 4 is arranged at the end of the hose 3 away from the connecting pipe 2, and the hose 3 is connected to the exhaust end of an external food metal detection instrument through the joint assembly 4, so that the exhaust gas can be transported to the interior of the tank body 1 along the hose 3 and the connecting pipe 2; the mixing mechanism 5 is arranged inside the tank body 1.

[0028] In actual use, the hose 3 is connected to the exhaust end of the food metal detector through the joint assembly 4, and then the exhaust gas generated by the food metal detector is transported to the inside of the tank body 1 through the hose 3 and the connecting pipe 2, and the dilution solvent inside the tank body 1 is extracted through the mixing mechanism 3 and contacted with the exhaust gas to dilute the acidic substances in the exhaust gas. At the same time, the heat in the exhaust gas is absorbed by the dilution solvent at room temperature to reduce the temperature of the exhaust gas.

[0029] It should be noted that, in order to prevent the dilution solvent from being discharged from the interior of the connecting pipe 2, the connecting pipe 2 in this embodiment is preferably in a Z-shape, and the end of the connecting pipe 2 communicating with the tank body 1 is arranged in an inclined shape.

[0030] See also Figure 2 In order to ensure that the dilution solvent can effectively contact the exhaust gas, the mixing mechanism 5 in this embodiment includes at least two drainage pipes 502, a pump body 501 and a water spray ring 503; at least the two drainage pipes 502 are connected to the tank body 1, the pump body 501 is connected between the at least two drainage pipes 502, the water spray ring 503 is installed on the inner wall of the tank body 1, and is connected to the upper drainage pipe 502, and at least the two drainage pipes 502 are respectively connected to the input end and the output end of the pump body 501.

[0031] In actual use, the diluted solvent in the tank body 1 is extracted by the pump body 501, transported to the inside of the water spray pipe 503 through the drain pipe 502, and sprayed out from the inside of the water spray pipe 503 to effectively contact the exhaust gas.

[0032] In actual settings, in order to increase the range of spraying the diluted solvent, at least two atomizing nozzles are connected to the inner side of the water spray ring 503, that is, the diluted solvent sprayed from the inner side of the water spray ring 503 forms a water curtain inside the tank body 1, thereby effectively contacting the exhaust gas.

[0033] Specifically, in order to ensure that the dilution solvent can effectively dilute the acidic substances in the exhaust gas, the dilution solvent in this embodiment is a dilute potassium hydroxide solution. In addition, the drain pipe 502 is a PVC plastic pipe, that is, the dilute potassium hydroxide solution will not damage the drain pipe 502.

[0034] See also Figure 3 In order to ensure that the hose 3 can be effectively connected to the exhaust end of the food metal detection instrument, the joint assembly 4 in this embodiment includes a limit ring 401 installed at the end of the hose 3 away from the connecting pipe 2, and a rotating member 402 is sleeved on the outer side of the hose 3. The inner side of the rotating member 402 is threadedly connected to a connector 403 whose end is connected to the exhaust end of the external food metal detection instrument.

[0035] In actual use, first connect the connector 403 to the exhaust end of the food metal detection instrument, and then put the rotating part 402 on the outside of the connector 403. By rotating the rotating part 402, one end of the connector 403 can be tightly abutted against the limit ring 401. At this time, the connector 403 and the hose 3 are in a connected state.

[0036] See also Figure 4 In order to purify the exhaust gas, the filter assembly 6 in this embodiment is arranged on the top of the tank body 1. The filter assembly 6 includes a filter cartridge 601 threadedly connected to the outside of the tank body 1, an adsorption layer 602 is installed inside the filter cartridge 601, and a filter layer 603 is arranged on the adsorption layer 602.

[0037] During actual use, the waste gas after contacting the diluted solvent rises with the tank body 1 and is discharged from the upper opening of the tank body 1 to the interior of the filter assembly 6. The waste gas is first adsorbed by the adsorption layer 602 inside the filter assembly 6, and then filtered again by the filter layer 603.

[0038] Furthermore, in order to facilitate the discharge of filtered gas and the maintenance of the adsorption layer 602 and the filter layer 603, a cover plate is detachably installed on the inner wall of the filter cartridge 601 and close to its upper end surface, and a plurality of through holes for exhaust are opened inside the cover plate.

[0039] Furthermore, in order to effectively adsorb and filter the exhaust gas, the adsorption layer 602 in this embodiment is an activated carbon layer, and the filtration layer 603 is a sponge layer.

[0040] In actual settings, the activated carbon layer has extremely strong adsorption properties, which can effectively adsorb and remove organic matter, gaseous pollutants and odors in the air, making the air fresher. In addition, the sponge layer can effectively absorb water molecules in the exhaust gas.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas discharge device for food heavy metal detection instruments, characterized in that: It comprises a tank body (1), a connecting pipe (2), a hose (3), a joint assembly (4), a mixing mechanism (5) and a filtering assembly (6); The tank body (1) is filled with a diluting solvent, the connecting pipe (2) is connected to the outer peripheral surface of the tank body (1), and the connecting pipe (2) and the connecting pipe of the tank body (1) are located above the liquid surface of the diluting solvent; The hose (3) is connected to the end of the connecting pipe (2) away from the tank body (1), the joint assembly (4) is arranged at the end of the hose (3) away from the connecting pipe (2), and the hose (3) is connected to the exhaust end of an external food metal detection instrument through the joint assembly (4), so that the exhaust gas can be transported to the inside of the tank body (1) along the hose (3) and the connecting pipe (2); The mixing mechanism (5) is arranged inside the tank body (1), and the mixing mechanism (5) comprises at least two drainage pipes (502), a pump body (501) and a water spray ring (503); At least two of the drainage pipes (502) are connected to the tank body (1), the pump body (501) is connected between at least two drainage pipes (502), and the water spray ring (503) is installed on the inner wall of the tank body (1) and is connected to the upper drainage pipe (502).

2. The waste gas discharge device for food heavy metal detection instrument according to claim 1, characterized in that: At least two atomizing nozzles are connected to the inner side of the water spray ring (503).

3. The waste gas discharge device for food heavy metal detection instrument according to claim 1, characterized in that: The dilution solvent is a dilute potassium hydroxide solution, and the drainage pipe (502) is a PVC plastic pipe.

4. The waste gas discharge device for food heavy metal detection instrument according to claim 1, characterized in that: At least two of the drainage pipes (502) are respectively connected to the input end and the output end of the pump body (501).

5. The waste gas discharge device for food heavy metal detection instrument according to claim 1, characterized in that: The joint assembly (4) comprises a limit ring (401) mounted on one end of the hose (3) away from the connecting pipe (2); a rotating member (402) is sleeved on the outer side of the hose (3); the inner side of the rotating member (402) is threadedly connected to a connector (403) having one end connected to an exhaust port of an external food metal detection instrument.

6. The waste gas discharge device for food heavy metal detection instrument according to claim 1, characterized in that: The filter assembly (6) is arranged on the top of the tank body (1), and comprises a filter cartridge (601) threadedly connected to the outside of the tank body (1), an adsorption layer (602) is installed inside the filter cartridge (601), and a filter layer (603) is arranged on the adsorption layer (602).

7. The waste gas discharge device for food heavy metal detection instrument according to claim 6, characterized in that: A cover plate is detachably mounted on the inner wall of the filter cartridge (601) near its upper end surface, and a plurality of through holes for exhaust are provided inside the cover plate.

8. The waste gas discharge device for food heavy metal detection instrument according to claim 6, characterized in that: The adsorption layer (602) is an activated carbon layer, and the filtration layer (603) is a sponge layer.

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