Spraying sterilization device and method for solid-liquid mixed food cans containing soup

Abstract

The present invention discloses a spray sterilization device and method for canned solid-liquid mixed food containing soup. The spray sterilization device includes a side-lying cylindrical sterilization box and a can placement device, and the can placement device includes a multi-layer sheet-like rectangular stainless steel plate and a base base; the surface of the stainless steel plate is evenly distributed with a first circular hole and a second circular hole, and a can hanging tube is preset in the first circular hole. The base base of the can placement device is provided with a first motion mechanism for horizontal reciprocating motion and a second motion mechanism for vertical reciprocating motion. In the process of spray sterilization, the technical solution of the present invention can reciprocate horizontally and vertically, so that the food at different positions in the can can change its position during the spray sterilization process, and the heating heat can be effectively transferred to the inside, which is conducive to further improving the sterilization efficiency and production efficiency of the can.

Description

Technical Field

[0001] The invention belongs to the field of food sterilization equipment, and in particular relates to a spraying sterilization device and method for solid-liquid mixed food cans containing soup. Background Art

[0002] Canned food refers to products that include packaging containers and food filled inside (canned for short). They have always been an indispensable convenience food in people's lives. Currently, there are many types of canned foods. For common canned fruits and canned meats, in addition to the fruits and meats themselves, fruit juice or meat soup is usually added to the cans for the taste and original flavor of the canned food. Therefore, canned solid-liquid mixed foods containing soup occupy an important position in the canned field.

[0003] For canned food, in order to maintain a long shelf life, it must be sterilized. Among the many existing sterilization equipment, spray sterilization equipment is a widely used one, which usually adopts a side-lying cylindrical sterilization cavity and a can placement device. The can placement device generally adopts a drawer-type can frame, and the cans are placed in layers in the drawer-type can frame, and then sent into the side-lying cylindrical sterilization cavity. According to the different selections of canned food, the corresponding spray time and temperature are selected, and the multi-layer cans in the drawer-type can frame are heated by spraying hot water, so that the canned food can be sterilized conveniently. Since the spray sterilization equipment has a simple structure and the floor space can be adjusted, the equipment can meet the simultaneous sterilization of different numbers of cans, so it is suitable for the sterilization processing of large, medium and small foods. However, due to the fact that the cans on the upper layer will block the spray hot water from fully and timely entering the position of the cans on the lower layer, and the limitation of the internal heat conduction of the cans on each layer, the existing spray sterilization equipment has the problem of low sterilization efficiency and relatively poor sterilization uniformity of cans at different positions. In the prior art, the problem is usually improved by extending the spraying time. However, if the spraying time is too long, the processing time will be prolonged and the production efficiency will be reduced. At the same time, long-term high-temperature sterilization will also destroy the nutrients in the cans. Therefore, this problem cannot be effectively solved.

[0004] Therefore, it is of great technical and economic value to develop an efficient spray sterilization equipment for canned solid-liquid mixed foods containing soup. Summary of the invention

[0005] The present invention provides a spray sterilization device and method for solid-liquid mixed food cans containing soup. By specially designing the structure of a can placement device, the cans can be moved and swung during the spraying process, so that the food at different positions in the cans can change their positions during the spray sterilization process, and the heating heat can be effectively transferred to the food in the middle of the can, thereby improving the heating efficiency and the heating uniformity, and finally improving the sterilization efficiency and production efficiency of the cans.

[0006] The spray sterilizing device for solid-liquid mixed food cans containing soup of the present invention mainly adopts the following technical solutions:

[0007] The spray sterilization device includes a side-lying cylindrical sterilization box and a can placement device. A side door is provided at one end of the cylindrical sterilization box, and the can placement device can enter and move out of the cylindrical sterilization box through the side door. The can placement device includes a multi-layer sheet-like rectangular stainless steel plate and a base base, and the stainless steel plate is located above the base base; support rods are provided between adjacent stainless steel plates, and the surface of the stainless steel plate is evenly distributed with first circular holes and second circular holes. A can hanging barrel with a circular cross-section is preset in the first circular hole, and a rotating support rod in the diameter direction of the cross-section is provided on the outer surface of the can hanging barrel, and the rotating support rod is connected to a slot in the diameter direction of the first circular hole. A first motion mechanism capable of reciprocating in the horizontal direction and a second motion mechanism capable of reciprocating in the vertical direction are provided inside the base base of the can placement device.

[0008] Further, the can hanging barrel is used to place cans, and the surface of the can hanging barrel is uniformly provided with through holes. Preferably, the upper surface of the can does not exceed the upper edge of the can hanging barrel after the can is placed.

[0009] Furthermore, the inner surface of the can hanging barrel is also provided with an impact-proof block made of heat-resistant polymer material.

[0010] Furthermore, the rotating support rod of the can hanging barrel is located at the upper edge of the can hanging barrel.

[0011] Furthermore, as a preferred solution, a spring is provided between the rotating support rod of the can hanging barrel and the upper edge of the hanging barrel.

[0012] Furthermore, the connecting directions of the slots of the first circular holes are perpendicular to the reciprocating motion direction of the can placement device.

[0013] Furthermore, the outer diameter of the can hanging barrel is smaller than the inner diameter of the first circular hole, and the difference between the two is not less than 10 mm.

[0014] Furthermore, the first motion mechanism and the second motion mechanism are connected to a power source on the cylindrical sterilization box shell through the base.

[0015] The spray sterilization method of a solid-liquid mixed food can containing soup of the present invention comprises the following steps:

[0016] S1, placing cans into the can hanging barrel of the stainless steel plate of the can placing device, sending the can placing device into the cylindrical sterilizing box, connecting the first motion mechanism and the second motion mechanism through the base to the power supply on the cylindrical sterilizing box shell, closing the side door, and turning on the spray device;

[0017] S2, start the power supply, control the first motion mechanism and the second motion mechanism, so that the can placement device alternately performs horizontal reciprocating motion and vertical reciprocating motion according to the set requirements, and completes the spray sterilization treatment of the set time and temperature;

[0018] S3, removing the sterilized canned food placing device from the cylindrical sterilization box.

[0019] Furthermore, in step S2, the single moving distance of the can placement device in the horizontal and vertical reciprocating motion does not exceed 20 cm; the can placement device in the horizontal and vertical reciprocating motion adopts non-uniform motion.

[0020] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0021] First, the technical solution of the present invention realizes the smooth flow of hot water sprayed between cans on different layers of stainless steel plates of the can placement device by setting the first and second circular holes on the surface of the multi-layer sheet-shaped rectangular stainless steel plates of the can placement device. The setting of the second circular hole is the same as that of the prior art, but the static cans in the prior art will block the second circular hole below; the present invention further sets a first circular hole with a significantly increased aperture, so that during the swinging of the can hanging barrel in the first circular hole during the sterilization process, more hot water sprayed can pass through the first circular hole to the lower layer, thereby efficiently sterilizing the cans on the lower layer.

[0022] Second, the technical solution of the present invention enables the can to reciprocate horizontally and vertically during the spray sterilization process through the design of the first circular hole and the can hanging barrel, thereby improving the sterilization efficiency. The first motion mechanism provided inside the base of the can placement device is used to realize the horizontal reciprocating motion of the upper stainless steel plate, and the second motion mechanism is used to realize the vertical reciprocating motion, so that the position change of the can and the food inside it can be realized. In particular, under the mixing and stirring of the soup, the heat can be quickly transferred at different positions inside the can, improving the heating uniformity and sterilization efficiency. Further, the position of the rotating support rod of the can hanging barrel is located at the upper edge of the hanging barrel, which can make the center of gravity of the can lower than the position of the rotating shaft where the rotating support rod is located, and the torque generated by the dead weight is used to accelerate the reciprocating swing in the horizontal direction, thereby promoting the vibration of the food in the can; on the other hand, a spring is also provided between the rotating support rod of the can hanging barrel and the upper edge of the hanging barrel, and the energy storage effect of the spring is used to make the reciprocating motion in the vertical direction also produce a vibration effect, so as to realize the interaction and stirring of the food in the can in the vertical direction.

[0023] Third, the technical solution of the present invention adopts the design of reciprocating motion single distance limitation and non-uniform speed movement in the sterilization method, which can take into account both the uniformity of sterilization and the adaptability of the sterilization device itself. On the one hand, the single distance limitation of the reciprocating motion makes it unnecessary to reserve too much extra space for the side-lying cylindrical sterilization box, reducing the processing cost, and can also keep the existing side-lying cylindrical sterilization box space unchanged, which can be achieved by adjusting the size of the can placement device, and has good adaptability and promotion; on the other hand, the setting of non-uniform speed movement is adopted to generate acceleration, which can increase the movement and interaction between foods at different positions in the can, especially making full use of the density difference between soup and solid food, and promoting the full and rapid transfer of heat through the rapid oscillation movement of the soup, taking into account the uniformity of sterilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the can placement device of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a sheet-shaped rectangular stainless steel plate of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a can hanging barrel of the present invention;

[0027] Figure 4 It is a schematic diagram of the position of the can hanging barrel of the present invention in a static state;

[0028] Figure 5 It is a schematic diagram of the can hanging barrel of the present invention swinging in the horizontal direction under the rotating support rod without spring structure;

[0029] Figure 6 It is a schematic diagram of the can hanging barrel of the present invention swinging in the horizontal direction under the condition that the rotating support rod has a spring structure. DETAILED DESCRIPTION

[0030] See also Figure 1~Figure 4 The spray sterilization device for canned solid-liquid mixed food containing soup of the present invention comprises a side-lying cylindrical sterilization box and a canned food placement device. The side-lying cylindrical sterilization box adopts a common structure in the prior art. A side door is provided at one end of the cylindrical sterilization box, and the canned food placement device can enter and move out of the cylindrical sterilization box through the side door; the canned food placement device comprises a multi-layer sheet-like rectangular stainless steel plate 21 and a base base 1. A bracket 2 is fixedly installed above the base base 1. The stainless steel plate 21 is located above the base base 1. The stainless steel plates 21 of different layers are fixedly placed on the bracket 2 in parallel. The number of layers of the stainless steel plates is determined according to the sterilization capacity and inner cavity volume of the side-lying cylindrical sterilization box; support rods (not shown in the figure) are provided between adjacent stainless steel plates 21. The setting position and number of the support rods are determined according to The number, volume and weight of cans placed on the stainless steel plate are determined so that the can placement device has sufficient strength and rigidity to bear the placed cans; the surface of the stainless steel plate 21 is evenly distributed with first circular holes 210 and second circular holes 211, the second circular holes are used for spraying hot water to pass through and enter the lower stainless steel plate to sterilize the cans, and a can hanging barrel 212 with a circular cross-section is preset in the first circular hole 210, the aperture of the first circular hole is significantly larger than the second circular hole, and the outer surface of the can hanging barrel 212 is provided with a rotating support rod 2120 in the direction of the cross-section diameter, and the rotating support rod 2120 is connected to the card slot 2101 in the diameter direction of the first circular hole 210, and the base base 1 of the can placement device is provided with a first motion mechanism 11 capable of reciprocating in the horizontal direction and a second motion mechanism 12 capable of reciprocating in the vertical direction. When the first motion mechanism 11 reciprocates in the horizontal direction, the rotating support rod 2120 of the can hanging barrel 212 rotates around the corresponding slot 2101, driving the can hanging barrel 212 to swing back and forth in the horizontal direction, thereby achieving vibration of the food in the can. In this process, the first circular hole has a larger space for the spray hot water above to pass through, so that the can below can be more fully heated and sterilized.

[0031] Furthermore, the can hanging barrel 212 is used to place cans, and the surface of the can hanging barrel 212 is evenly distributed with through holes. The arrangement of the through holes can allow the spray hot water to pass more smoothly.

[0032] Furthermore, the inner surface of the can hanging barrel 212 is also provided with an impact-proof block made of heat-resistant polymer material, which is provided to prevent collision damage between the canned packaging bottle or packaging box and the inner wall of the can hanging barrel.

[0033] Further, the rotating support rod 2120 of the can hanging barrel 212 is located at the upper edge of the can hanging barrel 212, see Figure 5 Under this structural condition, during the horizontal reciprocating motion of the first motion mechanism 11, the can hanging barrel 212 will swing back and forth in the horizontal direction due to the non-fixed connection between the can hanging barrel 212 and the stainless steel plate 21. The position of the rotating support rod is limited so that the center of gravity of the can is lower than the position of the rotating shaft of the rotating support rod, and the torque generated by the dead weight is used to accelerate the horizontal reciprocating swing.

[0034] Further, as a preferred solution, a spring is further provided between the rotating support rod 2120 of the can hanging barrel 212 and the upper edge of the can hanging barrel 212, see Figure 6 Under this structural condition, during the horizontal reciprocating motion of the first motion mechanism 11, the can hanging barrel 212 will stretch the spring during the swinging process. The existence of the spring can store energy, and it will stretch back and forth along the length direction of the spring during the swinging process, thereby promoting the vibration of the food in the can and realizing the interaction and stirring of the food in the can in the vertical direction.

[0035] Furthermore, the connecting direction of the slots 2101 of the first circular hole 210 is perpendicular to the reciprocating motion direction of the can placement device. This setting can ensure that the swinging direction of the can hanging barrel 212 is consistent with the reciprocating motion direction of the can placement device, thereby better realizing the motion regulation of the can hanging barrel.

[0036] Furthermore, the outer diameter of the can hanging tube 212 is smaller than the inner diameter of the first circular hole 210, and the difference between the two is not less than 10 mm. This arrangement can further ensure that the hot water sprayed from above can smoothly enter the lower stainless steel plate.

[0037] Furthermore, the first motion mechanism 11 and the second motion mechanism 12 are connected to a power source on the cylindrical sterilization box housing through the base 1 (not shown in the figure).

[0038] The spray sterilization method of the solid-liquid mixed food can containing soup of the present invention comprises the following steps:

[0039] S1, place the cans into the can hanging barrel 212 of the stainless steel plate 21 of the can placing device, put the can placing device into the cylindrical sterilizing box, connect the first motion mechanism 11 and the second motion mechanism 12 to the power supply on the cylindrical sterilizing box shell through the base 1, close the side door, and turn on the spray device;

[0040] S2, start the power supply, control the first motion mechanism 11 and the second motion mechanism 12, so that the canned food placement device alternately performs horizontal reciprocating motion and vertical reciprocating motion according to the set requirements, so that the canned food in the cylindrical sterilization box reciprocates up and down and swings in the horizontal direction, so that the soup and solid food in the canned food oscillate and interact asynchronously, thereby quickly and evenly completing the spray sterilization treatment of the set time and temperature;

[0041] S3, removing the sterilized canned food placing device from the cylindrical sterilization box.

[0042] Furthermore, in step S2, the can placement device reciprocates horizontally and vertically using non-uniform speed movement. This design can make full use of the density difference between the soup and solid food inside the can, realize the different accelerations of the two components during the movement, increase the movement and interaction between foods at different positions in the can, promote the full and rapid transfer of heat through rapid oscillating movement, and improve the uniformity of sterilization. The single movement distance of the can placement device reciprocating horizontally and vertically does not exceed 20 cm. The limitation of this design makes it unnecessary to make large adjustments to the volume change of the cylindrical sterilization box, reducing processing costs. It can also keep the space of the existing side-lying cylindrical sterilization box unchanged, and achieve this by adjusting the size of the can placement device, which has good adaptability and promotion.

[0043] The technical solution of the present invention is to set a first circular hole and a second circular hole on the surface of a multi-layer sheet-like rectangular stainless steel plate of a can placing device. Through the design of a can hanging tube in the first circular hole, the can can reciprocate horizontally and vertically during the spray sterilization process. The design of single distance limitation and non-uniform speed movement of reciprocating motion allows the food at different positions in the can to change its position during the spray sterilization process, thereby realizing effective transfer of heating heat to the inside, thereby improving both the heating efficiency and the heating uniformity, and contributing to further improving the can sterilization efficiency and production efficiency.

Claims

1. A spray sterilizing device for canned solid-liquid mixed food containing soup, comprising a side-lying cylindrical sterilizing box and a canned food placing device, characterized in that: The can placement device comprises a multi-layer sheet-like rectangular stainless steel plate and a base base, wherein the stainless steel plate is located above the base base; the surface of the stainless steel plate is evenly distributed with a first circular hole and a second circular hole, a can hanging barrel with a circular cross section is preset in the first circular hole, the outer surface of the can hanging barrel is provided with a rotating support rod in the direction of the cross-section diameter, the rotating support rod is connected to a slot in the direction of the diameter of the first circular hole, and the base base of the can placement device is internally provided with a first motion mechanism capable of reciprocating in the horizontal direction and a second motion mechanism capable of reciprocating in the vertical direction; the surface of the can hanging barrel is evenly distributed with through holes; the rotating support rod of the can hanging barrel is located at the upper edge of the can hanging barrel; the outer diameter of the can hanging barrel is smaller than the inner diameter of the first circular hole.

2. The spray sterilizing device for canned solid-liquid mixed food containing soup according to claim 1, characterized in that: The inner surface of the can hanging barrel is also provided with an anti-impact block made of heat-resistant polymer material.

3. The spray sterilizing device for canned solid-liquid mixed food containing soup according to claim 1, characterized in that: A spring is also arranged between the rotating support rod of the can hanging barrel and the upper edge of the can hanging barrel.

4. The spray sterilizing device for canned solid-liquid mixed food containing soup according to claim 1, characterized in that: The connecting direction of the two slots of the first circular hole is perpendicular to the reciprocating motion direction of the can placing device.

5. The spray sterilizing device for canned solid-liquid mixed food containing soup according to claim 1, characterized in that: The first movement mechanism and the second movement mechanism are connected to a power source on the cylindrical sterilization box shell through the base.

6. The sterilization method of the spray type sterilization device according to claim 1, characterized in that: The following steps are involved: S1, placing cans into the can hanging barrel of the stainless steel plate of the can placing device, sending the can placing device into the cylindrical sterilization box, and turning on the spraying device; S2, start the power supply, control the first motion mechanism and the second motion mechanism, so that the can placement device alternately performs horizontal reciprocating motion and vertical reciprocating motion according to the set requirements, and completes the spray sterilization treatment of the set time and temperature; S3, removing the sterilized canned food placing device from the cylindrical sterilization box.

7. The sterilization method of the spray type sterilization device according to claim 6, characterized in that: In step S2, the single moving distance of the can placing device in the horizontal and vertical directions reciprocating motion does not exceed 20 cm; the can placing device in the horizontal and vertical directions reciprocating motion adopts non-uniform motion.

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