Microwave sterilization device

Abstract

The utility model discloses a microwave sterilization device which comprises a belt conveyor, a plurality of microwave sterilization boxes arranged above the belt conveyor, microwave emitters arranged at the tops in the microwave sterilization boxes, sealing elements arranged on the left and right sides of the sterilization boxes, a material sensor arranged on one side, close to a feeding side, in the microwave sterilization boxes, and a thermal imager arranged at the top in the microwave sterilization boxes, the material sensor and the thermal imager are both electrically connected with the microwave emitter, and a cooling mechanism is further arranged on the side, close to an outlet of the microwave sterilization box, of the belt conveyor; the thermal imager and the material sensor are arranged in the microwave sterilization box, so that the material sensor can transmit a signal to the microwave emitter and open the microwave emitter when detecting materials, and the microwave sterilization box is simple, convenient and high in automation degree; in addition, by arranging the cooling mechanism, the materials discharged from the microwave sterilization box can be rapidly cooled, and the phenomenon that the materials go bad due to the fact that the continuous temperature of the materials is high is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of sterilization devices, in particular to a microwave sterilization device. Background Art

[0002] The microwave sterilization device generates heat by irradiating microwaves, thereby achieving the purpose of sterilization and disinfection. In the prior art, after searching, the Chinese patent publication number CN2324795Y discloses a tunnel-type box-type microwave sterilization device, such as Figure 1 As shown, it mainly includes a conveyor frame a, a microwave sterilization box b is provided above the belt conveyor a, a microwave emitter is provided on the top of the microwave sterilization box b, and rectangular or cylindrical shells c are provided on both sides of the microwave sterilization box b to prevent microwave leakage. The items are transported to the microwave sterilization box on the belt conveyor to complete the sterilization function.

[0003] A microwave sterilization device similar to the above-mentioned technical solution in the prior art was found to have some room for improvement during actual implementation: the microwave C emitter cannot automatically open and close according to whether there is material, and the degree of automation is low. In addition, the temperature of the material coming out of the microwave sterilization box is relatively high, and natural cooling is used, causing the material to be at a high temperature for a long time, which easily leads to material deterioration. Utility Model Content

[0004] In view of the deficiencies and defects in the prior art, the purpose of the present utility model is to provide a microwave sterilization device, which solves the problem that the microwave emitter of the microwave sterilization device in the prior art cannot automatically open and close according to whether there is material, and the degree of automation is low; and the temperature of the material coming out of the microwave sterilization box is high, and the use of natural cooling causes the material to be at a high temperature for a long time, which easily leads to the deterioration of the material.

[0005] In order to solve the above technical problems, the present utility model adopts the following technical solution: a microwave sterilization device, including a belt conveyor, a plurality of microwave sterilization boxes are arranged above the belt conveyor, a microwave emitter is provided on the top of the microwave sterilization box, and seals are provided on the left and right sides of the sterilization box. A material sensor is provided on the side close to the feed in the microwave sterilization box, and a thermal imager capable of detecting temperature is provided on the top of the microwave sterilization box. The material sensor and thermal imager are electrically connected to the microwave emitter. A cooling mechanism capable of cooling the material is also provided on the side of the belt conveyor close to the outlet of the microwave sterilization box.

[0006] As a further improvement of the present invention, the cooling mechanism includes an air cooler, and the air cooler is connected to the belt conveyor through a bracket.

[0007] As a further improvement of the present invention, the cooling mechanism also includes multiple spray heads, which are fixed on the bracket and connected to the cold water tank. A water receiving box is provided below the spray heads, and the water receiving box is located below the belt of the belt conveyor.

[0008] As a further improvement of the present invention, the sealing member is a sealing curtain.

[0009] As a further improvement of the present invention, the sterilization box is further provided with flipping rake teeth which can be raised and lowered by a lifting telescopic rod.

[0010] As a further improvement of the present invention, a lower hopper is detachably provided on the belt conveyor at a side close to the entrance of the microwave sterilization box, and a buffer roller is provided on the belt conveyor below the lower hopper.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. A thermal imager that can detect temperature is installed on the top of the microwave sterilization box. The material sensor and thermal imager are electrically connected to the microwave emitter. When the material sensor in the microwave sterilization box detects that material has entered the microwave sterilization box, it will transmit a signal to the microwave emitter. The microwave emitter will turn on after receiving the signal. When the material sensor detects that there is no material, it will transmit a signal to the microwave emitter. The microwave emitter will turn off after receiving the signal. It is simple and convenient, and has a high degree of automation.

[0013] In addition, by installing a thermal imager in the microwave sterilization box, the temperature inside the microwave sterilization box can be detected. The microwave generator adjusts the transmission power according to the detected temperature inside the microwave sterilization box to keep the temperature inside the microwave sterilization box constant.

[0014] In addition, a cooling mechanism that can cool the material is provided on the belt conveyor near the outlet of the microwave sterilization box, so that the material coming out of the microwave sterilization box can be quickly cooled, avoiding the phenomenon of material deterioration caused by the continuous high temperature of the material.

[0015] 2. The cooling mechanism is set as an air cooler to cool the material. A spray head is also set on the bracket to cool the material with water according to the material conditions. For example, if the material is not afraid of water, water cooling can be used to keep the material fresh.

[0016] 3. By setting the seal as a sealing curtain structure, the microwave sterilizer is relatively sealed without affecting the entry and exit of materials. Moreover, due to the deformability of the sealing curtain, the bottom of the sealing curtain can be relatively fully in contact with the material, thereby improving the thermal insulation and sealing effect.

[0017] 4. By setting the turning rake teeth that can be raised and lowered in the sterilization box, the material can be turned over according to the material situation, so that the material is heated evenly and the sterilization effect is improved. When the turning rake teeth are not needed, the turning rake teeth can be lifted upwards to avoid affecting the passage of the material.

[0018] 5. By setting up a lower hopper, it is convenient to connect with the upstream conveyor line. By setting up a buffer roller on the belt conveyor, the impact between the material and the belt conveyor is reduced when the material is dropped. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 It is a structural diagram of the prior art;

[0021] Figure 2 It is a structural diagram of the utility model;

[0022] Figure 3 for Figure 2 Enlarged view at point A;

[0023] In the figure: 1. Belt conveyor; 2. Microwave sterilization box; 3. Seal; 4. Material sensor; 5. Thermal imager; 6. Microwave transmitter; 7. Cooling mechanism; 71. Air cooler; 72. Bracket; 73. Spray head; 74. Cold water tank; 75. Water receiving tank; 8. Flipping rake teeth; 9. Lifting telescopic rod; 10. Buffer roller; 11. Lower hopper. DETAILED DESCRIPTION

[0024] The following is combined with Figure 2-3 The present invention will be described in further detail. For a clearer illustration, only the structures related to the present invention are shown in the figures.

[0025] For the convenience of description, the coordinate system is defined as follows Figure 2 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0026] The present invention discloses a microwave sterilization device. Figure 2 A microwave sterilization device includes a belt conveyor 1, with multiple microwave sterilization boxes 2 positioned above the belt conveyor 1. A microwave emitter 6 is located at the top of each microwave sterilization box 2. This arrangement is identical to the prior art and is not improved upon in this application, so it will not be described in detail. In this embodiment, seals 3 are provided on both the left and right sides of the sterilization box. These seals 3 are curtains, which provide a relatively tight seal around the microwave sterilization box 2 while not hindering the entry and exit of materials. Furthermore, the deformability of the curtains ensures that their bottoms are in relatively full contact with the materials, enhancing the thermal insulation and sealing effect.

[0027] like Figure 2 As shown, the microwave sterilization chamber 2 is provided with a material sensor 4 on the side near the material inlet, and a thermal imager 5 capable of detecting temperature is provided at the top of the microwave sterilization chamber 2. The material sensor 4 and the thermal imager 5 are both electrically connected to a microwave emitter 6. When the material sensor 4 in the microwave sterilization chamber 2 detects that material has entered the microwave sterilization chamber 2, it transmits a signal to the microwave emitter 6, which then turns on upon receiving the signal. When the material sensor 4 detects that no material is present, it transmits a signal to the microwave emitter 6, which then turns off upon receiving the signal. This system is simple, convenient, and highly automated.

[0028] In addition, by providing a thermal imager 5 in the microwave sterilization box 2, the temperature in the microwave sterilization box 2 can be detected. The microwave generator adjusts the transmission power according to the detected temperature in the microwave sterilization box 2 to keep the temperature in the microwave sterilization box 2 constant.

[0029] In addition, if Figure 2 and Figure 3 As shown, the belt conveyor 1 is also provided with a cooling mechanism 7 on the side of the outlet near the microwave sterilization box 2, which can cool the material. The cooling mechanism 7 includes an air cooler 71, which is connected to the belt conveyor 1 through a bracket 72, so as to air-cool the material. In addition, the cooling mechanism 7 also includes a plurality of spray heads 73, which are fixed on the bracket 72 and connected to the cold water tank 74. A water receiving box 75 is provided below the spray head 73, and the water receiving box 75 is located below the belt of the belt conveyor 1, so that the material can be water-cooled according to the situation of the material. For example, if the material is a water-resistant food, it can be water-cooled to maintain the freshness of the food. That is, in actual use, you can choose between water cooling mode and air cooling mode to meet more needs. In addition, the sterilization box is also provided with turning rake teeth 8 which can be raised and lowered by a lifting telescopic rod 9. The material can be turned over according to the material situation so that the material is heated evenly and the sterilization effect is improved. When the turning rake teeth 8 are not needed, the turning rake teeth 8 can be lifted upward to avoid affecting the passage of the material.

[0030] In addition, if Figure 2 As shown, the belt conveyor 1 is detachably provided with a lower hopper 11 on one side near the entrance of the microwave sterilization box 2, and the belt conveyor 1 is provided with a buffer roller 10 below the lower hopper 11. The buffer roller 10 is covered with a rubber buffer layer and is arranged between the endless belts to support the belts. When dropping materials, the buffer roller 10 is used to reduce the impact between the materials and the belt conveyor 1.

[0031] By providing a cooling mechanism 7 on the belt conveyor 1 near the outlet of the microwave sterilization box 2, the material coming out of the microwave sterilization box 2 can be quickly cooled to avoid the material being kept at a high temperature for a long time and causing the material to deteriorate.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. It should be understood that the specific embodiments described here are only used to understand the present utility model and are not used to limit the present utility model. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

Claims

1. A microwave sterilization device, comprising a belt conveyor, a plurality of microwave sterilization boxes arranged above the belt conveyor, and a microwave emitter arranged on the top of each microwave sterilization box, characterized in that: Seals are provided on both sides of the sterilization box. A material sensor is provided on the side close to the material inlet in the microwave sterilization box. A thermal imager capable of detecting temperature is provided on the top of the microwave sterilization box. The material sensor and thermal imager are electrically connected to the microwave emitter. A cooling mechanism capable of cooling the material is also provided on the belt conveyor near the outlet of the microwave sterilization box.

2. The microwave sterilization device according to claim 1, characterized in that: The cooling mechanism comprises an air cooler, which is connected to the belt conveyor via a bracket.

3. The microwave sterilization device according to claim 2, characterized in that: The cooling mechanism also includes a plurality of spray heads, which are fixed on the bracket and connected to the cold water tank. A water receiving box is provided below the spray heads and is located below the belt of the belt conveyor.

4. The microwave sterilization device according to claim 1, characterized in that: The sealing element is a sealing curtain.

5. The microwave sterilization device according to claim 1, characterized in that: The sterilizing box is also provided with turning rake teeth which can be raised and lowered by a lifting telescopic rod.

6. A microwave sterilization device according to any one of claims 1 to 5, characterized in that: The belt conveyor is provided with a detachable lower hopper on one side close to the entrance of the microwave sterilization box, and a buffer roller is provided on the belt conveyor below the lower hopper.

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