Waste liquid treatment device for food inspection and detection

Abstract

The utility model discloses a waste liquid treatment device for food inspection and detection, which comprises a funnel, a filter box mounted at the lower end of the funnel, a filter screen arranged in the filter box, a detection pipe mounted at the lower end of the filter screen, a PH value sensor arranged in the detection pipe, an anti-corrosion three-way electromagnetic valve mounted on a treatment box, and a partition vertically mounted in the middle in the treatment box, the partition plate divides the interior of the treatment box into a left acid neutralization area and a right alkali neutralization area, liquid storage boxes are arranged in the two areas, and the two output ends of the anti-corrosion three-way electromagnetic valve are connected with the upper end of the acid neutralization area and the upper end of the alkali neutralization area in the treatment box respectively. The waste liquid treatment device has the beneficial effects that the PH value sensor in the detection pipe can detect the PH value of waste liquid, and the anti-corrosion three-way electromagnetic valve is controlled by the controller to open different channels, so that the waste liquid flows into different treatment areas in the treatment box to be treated.

Description

Technical Field

[0001] The utility model relates to the technical field of food inspection and detection, in particular to a waste liquid treatment device for food inspection and detection. Background Art

[0002] In food inspection and testing, a large amount of chemical reagents are needed for sample pre-treatment and detection reactions, etc. These reagents have certain acidity and alkalinity, so they need special treatment. The current treatment method in the inspection laboratory is generally to pour the test waste liquid with chemical reagents into a special waste liquid storage box. After a certain amount is collected, it is transported away for separate treatment. The reagents cannot be treated on-site. Since different reagents have different characteristics, chemical reactions may occur after mixing, producing some toxic gases and releasing a large amount of heat, which has a certain impact on the experimental environment. Some laboratories store acidic and alkaline waste liquids separately, but the waste liquid needs to be observed again when dumping, which is easy to make mistakes. For this reason, we propose a waste liquid treatment device for food inspection and testing. Utility Model Content

[0003] The purpose of the utility model is to provide a waste liquid treatment device for food inspection and testing to solve the problems raised in the above background technology.

[0004] A waste liquid treatment device for food inspection and testing, comprising a funnel, a filter box is installed at the lower end of the funnel, a filter screen is arranged in the filter box, a detection tube is installed at the lower end of the filter screen, a pH sensor is arranged in the detection tube, and is used to detect the pH value of the waste liquid, the lower end of the detection tube is connected to the input end of an anti-corrosion three-way solenoid valve, the anti-corrosion three-way solenoid valve is installed on the treatment box, the three-way solenoid valve has an input end and two output ends, and the input end can be controlled to be connected to different output ends through an electric control signal;

[0005] The processing box includes a box cover and a box body, and the box cover is installed on the box body by fixing screws to facilitate the disassembly and assembly of the box cover. A partition is vertically installed in the middle of the box body, and the partition divides the processing box into two parts, an acid neutralization zone and an alkali neutralization zone on the left and right. An acid neutralization agent is placed in the acid neutralization zone, and an alkali neutralization agent is placed in the alkali neutralization zone. Liquid storage tanks are arranged in the acid neutralization zone and the alkali neutralization zone. The two output ends of the anti-corrosion three-way solenoid valve are respectively connected to the upper ends of the acid neutralization zone and the alkali neutralization zone in the processing box. A liquid level meter is inserted in the liquid storage tank. The liquid level meter is a capacitive liquid level meter, and the meter head is arranged at the upper end of the box body. One end of the exhaust pipe is installed on the left and right sides of the upper end of the box body, and the other end of the exhaust pipe is connected to the air collecting bag.

[0006] Preferably, a PLC processor is provided at the upper end of the processing box, and the PLC processor is electrically connected to the pH sensor and the anti-corrosion three-way solenoid valve, respectively. The pH sensor detects the pH value of the waste liquid, and then transmits the detection signal to the PLC processor. The PLC processor controls the anti-corrosion three-way solenoid valve to open different channels, so that the waste liquid flows into the corresponding processing area in the processing box.

[0007] Preferably, the filter box comprises an upper box body and a lower box body, and the upper box body and the lower box body are connected by a flange to facilitate the disassembly between the upper box body and the lower box body so as to clean the waste on the filter screen.

[0008] Preferably, a support spring is installed on the filter net, and a block is installed on the upper end of the support spring. The block blocks the connection port between the funnel and the filter box. When there is no waste liquid to be dumped, the support spring can press the block at the connection port to avoid the emission of waste gas.

[0009] Preferably, a pressure relief valve is provided on the exhaust pipe, and the pressure in the processing box can be ensured to be stable through the pressure relief valve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] When treating waste liquid, first pour the waste liquid into the funnel, flow into the filter box through the funnel, filter the waste residue in the waste liquid through the filter net, and then flow into the detection tube, and detect the pH value of the waste liquid through the pH sensor in the detection tube. The pH sensor transmits the detection signal to the PLC processor, and the PLC processor controls the anti-corrosion three-way solenoid valve to open different channels. If the pH value is within the acidic range, the anti-corrosion three-way solenoid valve opens the output end connected to the acid neutralization zone, and if the pH value is within the alkaline range, the anti-corrosion three-way solenoid valve opens the output end connected to the alkali neutralization zone;

[0012] Finally, the waste liquid flows into the corresponding area in the treatment box through the anti-corrosion three-way solenoid valve, reacts with the neutralizer in the acid neutralization area or the alkali neutralization area, and is neutralized. When the released waste gas accumulates and reaches a certain pressure value, it enters the gas collection bag through the exhaust pipe for collection;

[0013] The utility model has good waste liquid treatment effect and high efficiency, can automatically classify and treat waste liquid, and collect waste gas generated by waste liquid treatment, which helps to improve the overall detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a main structural sectional view of the utility model.

[0016] In the figure: 1, funnel, 2, filter box, 21, upper box body, 22, lower box body, 3, filter screen, 4, support spring, 5, block, 6, detection tube, 7, pH sensor, 8, anti-corrosion three-way solenoid valve, 9, treatment box, 91, box cover, 92, box body, 93, partition, 94, acid neutralization zone, 95, alkali neutralization zone, 96, fixing screw, 10, liquid storage tank, 11, liquid level meter, 12, exhaust pipe, 13, pressure relief valve, 14, air collecting bag, 15, PLC processor. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-2 A waste liquid treatment device for food inspection and testing comprises a funnel 1, a filter box 2 is installed at the lower end of the funnel 1, when treating waste liquid, the waste liquid is first poured into the funnel 1, and flows into the filter box 2 through the funnel 1, a filter screen 3 is arranged in the filter box 2, the filter box 2 comprises an upper box body 21 and a lower box body 22, the upper box body 21 and the lower box body 22 are connected by a flange, which is convenient for the decomposition between the upper box body 21 and the lower box body 22, so as to clean the waste on the filter screen 3; a support spring 4 is installed on the filter screen 3, and a retaining spring 4 is installed on the upper end of the support spring 4 Block 5, the block 5 blocks the connection port between the funnel 1 and the filter box 2. When no waste liquid is dumped, the support spring 4 can press the block 5 at the connection port to avoid the emission of waste gas; a detection tube 6 is installed at the lower end of the filter 3, and a pH sensor 7 is arranged in the detection tube 6 for detecting the pH value of the waste liquid. The lower end of the detection tube 6 is connected to the input end of an anti-corrosion three-way solenoid valve 8, and the anti-corrosion three-way solenoid valve 8 is installed on the processing box 9. The three-way solenoid valve 8 has an input end and two output ends, and the input end can be controlled to be connected to different output ends through an electric control signal.

[0019] The treatment box 9 includes a box cover 91 and a box body 92. The box cover 91 is installed on the box body 92 by fixing screws 96 to facilitate the disassembly and assembly of the box cover 91. A partition 93 is vertically installed in the middle of the box body 92. The partition 93 divides the treatment box 9 into two parts: an acid neutralization zone 94 and an alkali neutralization zone 95. An acid neutralizer is placed in the acid neutralization zone 94, and an alkali neutralizer is placed in the alkali neutralization zone 95. A liquid storage tank 10 is arranged in the acid neutralization zone 94 and the alkali neutralization zone 95. The two output ends of the anti-corrosion three-way solenoid valve 8 are respectively connected to the acid neutralization zone 94 and the alkali neutralization zone 95 in the treatment box 9. 95 is connected to the upper end, a liquid level gauge 11 is inserted into the liquid storage tank 10, the liquid level gauge 11 is a capacitive liquid level gauge, and the meter head is arranged at the upper end of the box body 92, one end of an exhaust pipe 12 is installed on the left and right sides of the upper end of the box body 92, the other end of the exhaust pipe 12 is connected to the air collecting bag 14, and a pressure relief valve 13 is arranged on the exhaust pipe 12, and the pressure stability in the treatment box 9 can be ensured by the pressure relief valve 13; the waste liquid reacts with the neutralizer in the acid neutralization zone 94 or the alkali neutralization zone 95, and the released waste gas accumulates and reaches a certain pressure value, and then enters the air collecting bag 14 through the exhaust pipe 12 for collection.

[0020] A PLC processor 15 is provided at the upper end of the processing box 9, and the PLC processor 15 is electrically connected to the pH sensor 7 and the anti-corrosion three-way solenoid valve 8 respectively. The pH sensor 7 detects the pH value of the waste liquid, and then transmits the detection signal to the PLC processor 15. The PLC processor 15 controls the anti-corrosion three-way solenoid valve 8 to open different channels, so that the waste liquid flows into the corresponding processing area in the processing box 9.

[0021] Working principle: When treating waste liquid, first pour the waste liquid into the funnel 1, flow into the filter box 2 through the funnel 1, filter the waste residue in the waste liquid through the filter net 3, and then the waste liquid flows into the detection tube 6, and the pH value of the waste liquid is detected by the pH value sensor 7 in the detection tube 6. The pH value sensor 7 transmits the detection signal to the PLC processor 15, and the PLC processor 15 controls the anti-corrosion three-way solenoid valve 8 to open different channels;

[0022] The waste liquid flows into the corresponding area in the treatment box 9 through the anti-corrosion three-way solenoid valve 8, reacts with the neutralizer in the acid neutralization area 94 or the alkali neutralization area 95, and is neutralized. The released waste gas enters the gas collection bag 14 through the exhaust pipe 12 and is collected.

[0023] The utility model is convenient for sampling and testing of samples, can ensure the randomness of samples, is easy to operate, can perform random sampling on two types of samples at the same time, and can also be used as a storage device to store multiple samples.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waste liquid treatment device for food inspection and testing, comprising a funnel (1), characterized in that: A filter box (2) is installed at the lower end of the funnel (1), a filter screen (3) is arranged in the filter box (2), a detection tube (6) is installed at the lower end of the filter screen (3), a pH value sensor (7) is arranged in the detection tube (6), the lower end of the detection tube (6) is connected to the input end of an anti-corrosion three-way solenoid valve (8), and the anti-corrosion three-way solenoid valve (8) is installed on the processing box (9); The treatment box (9) comprises a box cover (91) and a box body (92), wherein the box cover (91) is mounted on the box body (92) by means of fixing screws (96), wherein a partition plate (93) is vertically mounted in the middle of the box body (92), wherein the partition plate (93) divides the treatment box (9) into two parts, namely, a left and right acid neutralization zone (94) and an alkali neutralization zone (95), wherein a liquid storage tank (10) is arranged in the acid neutralization zone (94) and the alkali neutralization zone (95), wherein two output ends of the anti-corrosion three-way solenoid valve (8) are respectively connected to the upper ends of the acid neutralization zone (94) and the alkali neutralization zone (95) in the treatment box (9), wherein a liquid level meter (11) is inserted into the liquid storage tank (10), and one end of an exhaust pipe (12) is mounted on the left and right sides of the upper end of the box body (92), wherein the other end of the exhaust pipe (12) is connected to an air collecting bag (14).

2. A food inspection and testing waste liquid treatment device according to claim 1, characterized in that: A PLC processor (15) is provided at the upper end of the processing box (9), and the PLC processor (15) is electrically connected to the pH value sensor (7) and the anti-corrosion three-way solenoid valve (8) respectively.

3. A food inspection and testing waste liquid treatment device according to claim 1, characterized in that: The filter box (2) comprises an upper box body (21) and a lower box body (22), and the upper box body (21) and the lower box body (22) are connected via a flange.

4. A food inspection and testing waste liquid treatment device according to claim 1, characterized in that: A support spring (4) is installed on the filter screen (3), a stopper (5) is installed on the upper end of the support spring (4), and the stopper (5) blocks the connection between the funnel (1) and the filter box (2).

5. A food inspection and testing waste liquid treatment device according to claim 1, characterized in that: The exhaust pipe (12) is provided with a pressure relief valve (13).

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