CN115420574A - A kind of pretreatment equipment for food testing - Google Patents

Abstract

The invention provides a pretreatment device for food detection, which comprises a tank body, wherein the top of the tank body is provided with a feed inlet and a plurality of gas outlets, the gas outlets are provided with pressure limiting valves, the bottom of the tank body is provided with a discharge outlet, the discharge outlet is provided with a first electromagnetic valve, the side wall of the lower part of the tank body is provided with a heater, a cylindrical shell is arranged above the tank body, the side surface of the cylindrical shell is provided with a plurality of gas inlets at equal intervals, the top of the cylindrical shell is circumferentially provided with a plurality of gas outlets, and the gas outlets are all communicated with an annular pipe arranged above the cylindrical shell; the plurality of air outlets are respectively connected with the plurality of air inlets through first connecting pipes; the annular pipe is connected with the cooling component arranged at the top of the tank body through a second connecting pipe. The food detection device can perform unfreezing and crushing treatment on food to be detected on the premise of energy conservation, and is simple in structural design, practical and easy to operate.

Description

A kind of pretreatment equipment for food testing

technical field

The invention relates to the technical field of food detection, in particular to a pretreatment device for food detection.

Background technique

Food inspection is to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products in accordance with international and national food hygiene and safety standards to ensure that the product quality is qualified. The content of food testing includes sensory testing of food, testing of nutrients, additives, and harmful substances in food, etc. In order to grasp the food hygiene situation or find out whether the food has harmful ingredients, it is generally necessary to take multiple samples for inspection through the sampling device to ensure the accuracy of the detection.

In the prior art, when conducting safety inspections on frozen foods, it is usually necessary to perform a series of operations such as thawing, crushing, and heating in a water bath on a batch of sampling samples, and then process the samples into a fluid state before testing. The whole process is operated Complex and cumbersome, time-consuming and labor-intensive, and low detection efficiency.

Contents of the invention

The purpose of the present invention is to provide a kind of pretreatment equipment for food detection in view of the deficiencies in the prior art, and the specific scheme is as follows:

A pretreatment device for food testing, comprising a tank body, the top of the tank body is provided with a feed port and a plurality of gas outlets, the gas outlet is provided with a pressure limiting valve, the bottom of the tank body is provided with a discharge port, the A first solenoid valve is provided at the discharge port, a heater is provided on the side wall of the lower part of the tank body, and a columnar shell is provided above the tank body. The direction of the air inlets deviates from the axial position of the cylindrical shell, and the top of the cylindrical shell is provided with a plurality of air outlet holes along the circumference, and the air outlet holes are all connected with the annular pipe arranged above the cylindrical shell; The gas ports are respectively connected to a plurality of the air inlets through the first connecting pipe; the annular pipe is connected to the cooling assembly arranged on the top of the tank through the second connecting pipe; the first solenoid valve and the heater are electrically connected To the controller arranged on the side wall of the tank body; a plurality of supporting legs are provided under the tank body, and rubber pads are provided at the bottom of the supporting legs.

Based on the above, the cooling assembly includes a cylinder, the side wall of the cylinder is provided with a water inlet and a water outlet, and a spiral heat exchange tube is installed in the cylinder, and the inlet of the spiral heat exchange tube is connected to the second The tubes are connected sequentially, and the outlet of the spiral heat exchange tube extends to the outside of the cylinder.

Based on the above, the axial position of the cylinder penetrates and rotates with a rotating shaft, and the rotating shaft is provided with a helical stirring blade, and the rotating shaft is connected with the rotating rod through a pulley transmission structure.

Based on the above, the side wall of the tank body is provided with a water collection box, the top of the water collection box is provided with a collection port, and the collection port is connected to the outlet of the spiral heat exchange tube through a third connecting pipe, and the bottom of the water collection box is provided with a drain A second solenoid valve is provided at the drain port, and the drain port is connected to the return port provided on the side wall of the tank through the fourth connecting pipe.

Based on the above, the bottom of the tank body is further provided with a sampling port, and the sampling port is provided with a second electromagnetic valve electrically connected to the controller.

Based on the above, the interior of the tank body is coated with nanometer self-cleaning paint.

Based on the above, the inner top of the tank body is also provided with an ultrasonic level gauge electrically connected to the controller.

Based on the above, the inner bottom of the tank is further provided with a temperature sensor electrically connected to the controller.

Compared with the prior art, the present invention has outstanding substantive features and remarkable progress. Specifically, the present invention has the following advantages:

The pretreatment equipment for food detection provided by the present invention can not only quickly thaw frozen food, but also crush it, process it into a fluid state, fully extract tissue fluid in food, and ensure accurate subsequent detection results; in addition , when crushing frozen food, the required power source is steam power, and the structural design of the pressure limiting valve at the air outlet not only speeds up the thawing and decomposition speed of the food inside the tank, but also ensures that when the steam enters the cylindrical shell The impact force is simple, practical and energy-saving.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a top view of the matching structure of the cylindrical shell, the annular pipe and the rotating rod in the present invention.

Fig. 3 is the structural representation of cooling assembly in the present invention

In the figure: 1. tank body; 2. material inlet; 3. material outlet; 4. heater; 5. rotating rod; 6. spiral push leaf; 7. blade; ; 10. Air inlet; 11. Annular tube; 12. Blade; 13. Cooling component; 13-1. Cylinder; 13-2. Spiral heat exchange tube; 13-3. Rotating shaft; 13-5. Water outlet; 13-6. Spiral stirring blade; 14. Third connecting pipe; 15. Water collection tank; 16. Fourth connecting pipe; 17. Return port; 18. Pulley transmission structure; ; 20. Sampling inspection port; 21. Controller; 22. Ultrasonic material level gauge; 23. Supporting legs.

detailed description

The technical solutions of the present invention will be described in further detail below through specific implementation methods.

Example

As shown in Figures 1-3, the present invention provides a pretreatment device for food testing, including a tank body 1, the top of the tank body 1 is provided with a feed inlet 2 and a plurality of gas outlets 8, and the gas outlets 8 are A pressure limiting valve is provided, a discharge port 3 is provided at the bottom of the tank body 1, a first electromagnetic valve is provided at the discharge port 3, a heater 4 is provided on the side wall of the lower part of the tank body 1, and a cylindrical shell is provided above the tank body 1 body 9, the side of the cylindrical housing 9 is equidistantly provided with a plurality of air inlets 10, the direction of the plurality of air inlets 10 deviates from the axial position of the cylindrical housing 9, and the top of the cylindrical housing 9 is arranged along the circumferential direction. There are a plurality of air outlets, and the air outlets are all communicated with the annular pipe 11 arranged above the cylindrical housing 9; the plurality of air outlets 8 are respectively connected to the plurality of air inlets 10 through the first connecting pipe; The annular pipe 11 is connected to the cooling assembly 13 arranged on the top of the tank body 1 through the second connecting pipe; the first electromagnetic valve and the heater 4 are electrically connected to the controller 21 arranged on the side wall of the tank body 1; A plurality of supporting legs 23 are arranged under the tank body 1 , and rubber pads are arranged on the bottom of the supporting legs 23 .

Since the exhausted steam not only has a certain amount of heat, but also is a water resource, considering the principle of energy saving, the cooling assembly 13 includes a cylinder 13-1, and the side wall of the cylinder 13-1 is provided with a water inlet 13- 4. The water outlet 13-5, the cylinder 13-1 rotates inside and is provided with a spiral heat exchange tube 13-2, the inlet of the spiral heat exchange tube 13-2 is connected with the second connecting pipe, and the spiral heat exchange tube The outlet of 13-2 extends outside the cylinder 13-1.

In order to ensure the heat exchange efficiency between water and steam in the cylinder 13-1, a rotating shaft 13-3 is installed and rotated at the axial position of the cylinder 13-1, and a spiral stirring blade 13-3 is provided on the rotating shaft 13-3. 6. The rotating shaft 13 - 3 is drivingly connected with the rotating rod 5 through the pulley transmission structure 18 .

In order to facilitate the recycling of cooling water, a water collection tank 15 is provided on the side wall of the tank body 1, and a collection port is provided on the top of the water collection tank 15, and the collection port is connected to the spiral heat exchange tube 13- 2, the bottom of the water collection tank 15 is provided with a drain, and the drain is provided with a second solenoid valve, and the drain is connected with the return port 17 arranged on the side wall of the tank body 1 through the fourth connecting pipe 16.

In the process of heating and pulverizing the food in the tank body 1, for the convenience of sampling inspection, a sampling inspection port 20 is provided at the bottom of the tank body 1, and a first sampling port 20 electrically connected to the controller 21 is provided at the sampling inspection port 20. Two solenoid valves.

In order to prevent the material from adhering to the inner wall of the tank body 1, the inside of the tank body 1 is coated with a nano self-cleaning paint.

In order to control the amount of material in the tank body 1 , an ultrasonic level gauge 22 electrically connected to the controller 21 is provided on the inner top of the tank body 1 .

In order to monitor the temperature inside the tank body 1 , a temperature sensor 19 electrically connected to the controller 21 is provided at the inner bottom of the tank body 1 .

The specific working principle of the present invention: first, put the food sample to be detected into the tank body 1, then inject water into the tank body 1, and the ultrasonic material level gauge 22 monitors the material level in the tank body 1 in real time until it reaches the setting of the controller 21 Material position, end water injection. Then start the heater 4, the water temperature inside the tank body 1 is first raised to the initial thawing temperature range for a period of time, and then the temperature of the material in the tank body 1 is raised to the food hydrolysis temperature. After the steam pressure inside the tank body 1 reaches a certain value, the steam from The air outlet 8 is discharged into the cylindrical casing 9, and the steam blows on the blades 12 in the cylindrical casing 9 to drive the blades 12 to rotate, thereby causing the rotating rod 5 to rotate, and the blades 7 on the rotating rod 5 continuously cut the food At the same time, the screw pusher blade 6 continuously rolls the material in the tank body 1 until the food is processed and crushed into a fluid state.

In addition, cold water is continuously injected into the water inlet 13-4 of the cylinder 13-1 to exchange heat with the steam entering the spiral heat exchange tube 13-2, and then liquefied into water and enters the water collection tank 15. After the cold water is heated, it flows from the water outlet 13-5 Discharged for other uses to achieve energy recovery.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.

Claims (8)

1. A pretreatment device for food testing, characterized in that it includes a tank body (1), the top of the tank body (1) is provided with a feed inlet (2) and a plurality of gas outlets (8), and the gas outlets (8) is provided with a pressure limiting valve, the bottom of the tank body (1) is provided with a discharge port (3), the discharge port (3) is provided with a first solenoid valve, and the lower side wall of the tank body (1) is provided with A heater (4), a columnar shell (9) is provided above the tank (1), and a plurality of air inlets (10) are arranged at equal intervals on the side of the columnar shell (9). The orientation of the port (10) deviates from the axial position of the cylindrical casing (9), and the top of the cylindrical casing (9) is provided with a plurality of air outlet holes along the circumference, and the air outlet holes are all connected with the upper part of the cylindrical casing (9). The annular pipe (11) is connected; the multiple air outlets (8) are respectively connected to the multiple air inlets (10) through the first connecting pipe; the annular pipe (11) is connected to the The cooling component (13) on the top of the tank (1) is connected; the first solenoid valve and the heater (4) are electrically connected to the controller (21) arranged on the side wall of the tank (1); the tank A plurality of support legs (23) are provided under the body (1), and rubber pads are provided at the bottom of the support legs (23). 2. The pretreatment equipment for food testing according to claim 1, characterized in that: the cooling assembly (13) includes a cylinder (13-1), and the side wall of the cylinder (13-1) is provided with The water inlet (13-4), the water outlet (13-5), the cylinder body (13-1) rotates and is provided with a spiral heat exchange tube (13-2), and the inlet of the spiral heat exchange tube (13-2) Connected with the second connecting pipe, the outlet of the spiral heat exchange tube (13-2) extends to the outside of the cylinder (13-1). 3. The pretreatment equipment for food testing according to claim 2, characterized in that: the axis position of the cylinder (13-1) penetrates and rotates with a rotating shaft (13-3), and the rotating shaft (13- 3) There is a spiral stirring blade (13-6) on it, and the rotating shaft (13-3) is connected to the rotating rod (5) through a pulley transmission structure (18). 4. The pretreatment equipment for food testing according to claim 1, characterized in that: the side wall of the tank body (1) is provided with a water collection box (15), and the top of the water collection box (15) is provided with a collection port , the collection port is connected to the outlet of the spiral heat exchange tube (13-2) through the third connecting pipe (14), the bottom of the water collection tank (15) is provided with a drain port, and a second solenoid valve is provided at the drain port , the drain port is connected to the return port (17) provided on the side wall of the tank body (1) through the fourth connecting pipe (16). 5. The pretreatment equipment for food testing according to claim 1, characterized in that: the bottom of the tank body (1) is also provided with a sampling port (20), and the sampling port (20) is provided with the The controller (21) is electrically connected to the second solenoid valve. 6. The pretreatment equipment for food testing according to claim 1, characterized in that: the inside of the tank body (1) is coated with nanometer self-cleaning paint. 7. The pretreatment equipment for food detection according to claim 1, characterized in that: the inner top of the tank (1) is also provided with an ultrasonic level gauge (22) electrically connected to the controller (21) ). 8. The pre-processing equipment for food detection according to claim 1, characterized in that: a temperature sensor (19) electrically connected to the controller (21) is provided at the inner bottom of the tank body (1).

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