Material sterilization and cooling device
By integrating high-temperature sterilization and cooling equipment, and employing steam pipelines, cooling pipeline systems, and transmission systems, the rice production line achieves automation and efficient sterilization and cooling, solving the problems of low efficiency and insufficient automation of existing equipment, and improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LEYING PROFESSIONAL KITCHEN EQUIP CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-24
AI Technical Summary
The existing sterilization and cooling equipment has a split design, which leads to low production efficiency, large footprint, high labor costs, and easy damage or contamination of packaging. In addition, the degree of automation is insufficient and it is difficult to adapt to fully automatic aseptic boxed rice production lines.
The high-temperature sterilization equipment and cooling equipment are integrated together. The steam pipeline system and cooling pipeline system realize automatic steam supply and cooling water circulation. Combined with the transmission system, the automatic input and output of materials are realized. Seamless circulation transmission is realized through chain and transmission sprocket device.
It achieves full automation of the rice production process, saves floor space, improves production efficiency, avoids mismatch in production rhythm and labor costs, ensures uniform heating of materials, reduces steam consumption, and avoids packaging damage and contamination.
Smart Images

Figure CN224539349U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of food processing equipment, and more specifically, relates to a material sterilization and cooling device. Background Technology
[0002] Currently, most domestic sterilization and cooling solutions are split-type high-temperature sterilization + cooling equipment. High-temperature sterilization equipment is divided into intermittent and continuous types. Intermittent operation requires repeated heating and cooling, resulting in high steam consumption and frequent, time-consuming operation. Continuous operation suffers from uneven heat distribution or requires a large floor space. Cooling equipment is divided into natural cooling, air cooling, and water cooling. Natural cooling is time-consuming, while air cooling and water cooling are prone to secondary microbial growth due to unclean air or water. The entire process lacks automation, relying on manual transfer of sterilized lunch boxes to the cooling station. This leads to problems such as mismatched production cycles (significant difference between sterilization and cooling times), high labor costs, and the risk of packaging damage or contamination during transfer. Consequently, the process is inefficient, requires a large floor space, and is difficult to adapt to fully automated aseptic boxed rice production lines. Utility Model Content
[0003] To address the aforementioned technical problems, this application aims to provide a material sterilization and cooling device that integrates a high-temperature sterilization device and a cooling device after structural optimization, and realizes automatic input and output of lunch boxes through an input section and an output section.
[0004] To solve the above-mentioned technical problems, the present invention provides a material sterilization and cooling device, the sterilization and cooling device comprising: A high-temperature sterilization device, located in the upstream section of the device, is connected to the section via a steam pipeline to achieve high-temperature sterilization; Cooling equipment, located in the downstream section of the device, uses a cooling pipeline system to cool the materials; The transmission system arranges the various sections of the sterilization and cooling device into a U-shaped circulation layout, and uses a combination of motor and worm gear reducer to transmit power through sprockets, chains and couplings.
[0005] Furthermore, the transmission system includes a motor, sprockets and chains, worm gear reducer combinations, and a transmission sprocket device. The transmission system employs several coaxial couplings, with first worm gear reducer combinations between the couplings. The motor synchronously drives multiple first worm gear reducer combinations through the sprockets, chains, and couplings. Simultaneously, the first worm gear reducer combinations drive the corresponding transmission sprocket devices to rotate, synchronously transmitting materials in different rows within the sterilization and cooling sections.
[0006] Furthermore, the transmission system is equipped with a chain, which is connected to the transmission system. The chain forms a loop through multiple transmission sprocket devices, guide sprocket devices, and tension sprocket devices arranged at set positions in the sterilization section and the cooling section. Under the drive of the transmission sprocket devices, the chain rotates at a set speed.
[0007] Furthermore, the material is placed in a tray, and the tray has hooks at both ends, which are installed on a chain. The bottom of the tray remains parallel to the ground as it moves with the chain.
[0008] Furthermore, the high-temperature sterilization equipment includes a steam pipeline system that supplies high-temperature steam to the sterilization section.
[0009] Furthermore, the cooling equipment includes a cooling piping system in which cooling water is continuously supplied, and is arranged in the cooling exhaust transition zone and the cooling section.
[0010] Furthermore, the cooling exhaust transition zone is equipped with an exhaust pipe and a first spray pipe. The exhaust pipe is connected to an external fan to remove the steam overflowing from the sterilization section outlet.
[0011] Furthermore, a cleaning pipe is provided at the upper part of the sterilization section, and a steam pipe and a first water receiving tray are provided at the corresponding position at the lower part of the cleaning pipe; End partitions are provided at both ends of the sterilization section.
[0012] Furthermore, in the cooling section, a second spray pipe is provided at the top, and a third spray pipe and a second water receiving tray are provided at the bottom. Both the first and second spray pipes are connected to the cooling pipeline system, and water mist is sprayed out under the supply of the cooling pipeline system to cool down the materials in the cooling section. The drain outlet of the second water collection tray is connected to the cooling pipeline system, which sends all the collected water after heat exchange to the cooling pipeline system for treatment and recycling.
[0013] This utility model has the following advantages compared with the prior art: This application integrates high-temperature sterilization and cooling equipment into a single structure after structural optimization. Automatic input and output of lunchboxes are achieved through input and output sections. A steam pipeline system automatically supplies steam to the sterilization section, maintaining the internal temperature within a preset range. A cooling pipeline system automatically supplies cooling water to the sterilization section and cooling ventilation transition zone, circulating and filtering the water after heat exchange for sterilization, ensuring a consistently good cooling environment within these zones. A cold water spray system automatically supplies cold water to the sterilization and cooling sections for cleaning the interior of the container. A drainage system discharges wastewater to a designated location. The design and arrangement of internal chains, drive sprockets, guide sprockets, and tension sprockets achieve a seamless cycle from input to sterilization to cooling to output for the lunchboxes. The single-row, single-layer, three-dimensional circulating conveyor system saves floor space and ensures that each lunchbox is heated evenly. The entire equipment is simple to operate and fully automated, avoiding problems such as mismatched production cycles, high labor costs, large steam consumption, large footprint, and packaging damage or contamination during transportation. It greatly improves production efficiency and quality, and perfectly complements a fully automated aseptic boxed rice production line. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the sterilization and cooling device of this application; Figure 2 This is a schematic diagram of the internal structure of the sterilization and cooling device of this application; Figure 3 This is a front view of the sterilization and cooling device of this application; Figure 4 This is a schematic diagram of the transmission sprocket device provided in the embodiments of this utility model; Figure 5 This is a schematic diagram of the steam pipe system provided in the embodiments of this utility model; Figure 6 This is a schematic diagram of the cooling piping system provided in the embodiments of this utility model; Figure 7 This is a schematic diagram of the cooling spray system provided in the embodiments of this utility model; Figure 8 This is a schematic diagram of the drainage system provided in the embodiments of this utility model; In the diagram, 1-output section, 2-cooling section, 3-cooling exhaust transition zone, 4-sterilization section, 5-cooling exhaust zone, 6-input section, 7-cooling piping system, 8-cooling spray system, and 9-drainage system. 21-Guide wheel device, 22-Material, 23-Pattern, 24-Chain, 25-Drive sprocket device, 26-Washing pipe, 27-Spray pipe, 28-Spray pipe, 29-Steam pipe, 210-Water receiving tray, 211-Tension wheel device, 212-Push-in and push-out device, 213-Baffle plate; 31- Worm Gear Reducer; 41-Coupling, 42-Reducer, 43-Oil tray, 44-Machine base. Detailed Implementation
[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.
[0016] The overall structure of the material sterilization and cooling device provided in this application is as follows: Figure 1 As shown, the sterilization and cooling device includes: A high-temperature sterilization device, located in the upstream section of the device, is connected to the section via a steam pipeline to achieve high-temperature sterilization; Cooling equipment, located in the downstream section of the device, uses a cooling pipeline system to cool the materials; The transmission system arranges the various sections of the sterilization and cooling device into a U-shaped circulation layout, and uses a combination of motor and worm gear reducer to transmit power through sprockets, chains and couplings.
[0017] The material sterilization and cooling device provided in this application integrates high-temperature sterilization equipment and cooling equipment into one structure after structural optimization. It is applied to a rice production line. Automatic input and output of rice boxes are realized through input and output sections. The steam pipeline system realizes automatic steam supply to the sterilization section and maintains the internal temperature within a preset range. The cooling pipeline system realizes automatic cooling water supply to the sterilization section and cooling exhaust transition zone, and circulates, filters and sterilizes the water after heat exchange, so that the sterilization section and cooling exhaust transition zone always maintain a good cooling environment.
[0018] Furthermore, the transmission system includes a motor, sprockets and chains, worm gear reducer combinations, and a transmission sprocket device. The transmission system employs several coaxial couplings, with first worm gear reducer combinations between the couplings. The motor synchronously drives multiple first worm gear reducer combinations through the sprockets, chains, and couplings. Simultaneously, the first worm gear reducer combinations drive the corresponding transmission sprocket devices to rotate, synchronously transmitting materials in different rows within the sterilization and cooling sections.
[0019] like Figure 4As shown, in this embodiment, the motor in the transmission system drives multiple worm gear reducers located in the sterilization and cooling sections via sprockets, chains, and couplings. Simultaneously, the worm gear reducers drive the transmission sprocket devices to rotate. The chain forms a fixed-path loop through multiple transmission sprocket devices, guide sprocket devices, and tensioning sprocket devices arranged at corresponding positions in each section. See details below. Figure 2 There is one chain on each side of the sterilization section. Driven by the transmission sprocket device, the chain rotates at a set speed. A pin is provided on every four links of the chain.
[0020] In this embodiment, a push-in / pull-out device and a sprocket guide device may also be provided in the input section and the output section, respectively for inputting materials and guiding the chain.
[0021] Furthermore, the transmission system is equipped with a chain, which is connected to the transmission system. The chain forms a loop through multiple transmission sprocket devices, guide sprocket devices, and tension sprocket devices arranged at set positions in the sterilization section and the cooling section. Under the drive of the transmission sprocket devices, the chain rotates at a set speed.
[0022] Furthermore, the material is placed in a tray, which has lugs at both ends that are mounted on a chain. The bottom of the tray remains parallel to the ground as it moves with the chain. Figure 2 , Figure 3 As shown, the pallet has lugs at both ends, which are installed on the corresponding pins of the chains on both sides by snap rings. Plastic bushings are provided between the lugs and the pins. The lugs and bushings, as well as the bushings and the pins, are clearance fits, so that the bottom of the pallet is always parallel to the ground when it moves with the chain.
[0023] Furthermore, the high-temperature sterilization equipment includes a steam pipeline system that supplies high-temperature steam to the sterilization section.
[0024] In this embodiment, the steam pipeline system input port is connected to steam from an external steam source. Through various standard valves, pressure gauges, and thermometers arranged on the internal pipeline, the steam pressure and temperature are stably controlled, ensuring the quality of the steam and ensuring that it is stably output to the sterilization section through the output port.
[0025] The sterilization section is equipped with a cleaning pipe at the top and a steam pipe and water tray at the bottom. Two end baffles are located at each end. Thermometers, multiple drive sprocket devices, and guide sprocket devices are also installed at corresponding positions. The cleaning pipe is connected to a cold water spray system, which sprays a water curtain to clean the interior. The steam pipe is connected to a steam pipeline system, which supplies high-temperature steam to the sterilization section. The drain outlet of the water tray is connected to a drainage system to promptly drain collected wastewater. The end baffles are arranged in an alternating pattern to prevent steam overflow while allowing the tray to pass smoothly. The thermometer probes monitor and provide feedback on the temperature within the sterilization section in real time. The drive sprocket devices and guide sprocket devices drive the chain and guide the chain, respectively.
[0026] Furthermore, the cooling equipment includes a cooling piping system in which cooling water is continuously supplied, and is arranged in the cooling exhaust transition zone and the cooling section.
[0027] The cooling section is equipped with a second spray pipe at the top and a first spray pipe and a water collection tray at the bottom. Thermometers, multiple drive sprocket devices, guide sprocket devices, and tensioning wheel devices are also located at corresponding positions. The upper spray pipe connects to the cooling pipeline system, spraying water mist to cool the materials passing through this section. The lower spray pipe connects to a cold water spray system, spraying water mist to cool the materials passing through this section. The drain outlet of the water collection tray connects to the cooling pipeline system, sending all collected water after heat exchange to the cooling pipeline system for treatment and recycling.
[0028] The cooling piping system's medium inlet and outlet are connected to an external cooling medium container. The circulating water inlet is connected to the drain outlet of the sterilizer's water tray. The first cold water outlet is connected to the spray pipe of the cooling section, and the second cold water outlet is connected to the spray pipe of the cooling exhaust transition zone. Various standard valves, pressure gauges, thermometers, filters, and water pumps arranged on the internal piping achieve the filtration, sterilization, and transportation of circulating water and the transportation of the cooling medium. After filtration and sterilization, the circulating water is cooled to the target temperature by the cooling medium in a plate heat exchanger and then sent to the cooling section and the cooling exhaust transition zone respectively. Excess circulating water and wastewater generated from other parts are drained from the drain outlet.
[0029] Furthermore, such as Figure 2 As shown, the cooling exhaust transition zone is equipped with an exhaust pipe and a first spray pipe. The exhaust pipe is connected to an external fan to remove the steam overflowing from the sterilization section outlet.
[0030] The cooling and ventilation transition zone is equipped with an exhaust duct and a first spray pipe. The exhaust duct is connected to an external fan to remove the steam overflowing from the sterilization section outlet; the first spray pipe is connected to the cooling pipeline system, and under the supply of the cooling pipeline system, it sprays water mist evenly to cool the materials passing through this section; the water generated in this section falls into the water receiving tray of the cooling section.
[0031] Furthermore, a cleaning pipe is provided at the upper part of the sterilization section, and a steam pipe and a first water receiving tray are provided at the corresponding position at the lower part of the cleaning pipe; end partitions are provided at both ends of the sterilization section.
[0032] All the aforementioned spray pipes are connected to the cooling spray system. The cooling spray system's cold water inlet is connected to external cold water, the first cold water outlet is connected to the spray pipe of the sterilization section, and the second cold water outlet is connected to the spray pipe of the cooling section. An electric ball valve controls the supply of cold water.
[0033] Below the cooling spray system is the drainage system. The first water inlet of the drainage system is connected to the drain outlet of the water collection tray in the cooling exhaust area, and the second and third water inlets are connected to the drain outlets of the water collection tray in the sterilization section. The wastewater from the cooling exhaust area and the sterilization section is collected and discharged centrally through pipelines.
[0034] Furthermore, in the cooling section, a second spray pipe is provided at the top, and a third spray pipe and a second water receiving tray are provided at the bottom. Both the first and second spray pipes are connected to the cooling pipeline system, and water mist is sprayed out under the supply of the cooling pipeline system to cool down the materials in the cooling section. The drain outlet of the second water collection tray is connected to the cooling pipeline system, which sends all the collected water after heat exchange to the cooling pipeline system for treatment and recycling.
[0035] The material sterilization and cooling device provided in the above embodiments can provide a two-in-one process of sterilization and cooling for rice production. Its working principle is as follows: The sterilization and cooling device has a cleaning mode and a production mode. In cleaning mode, the transmission system drives the tray to start rotating, and then the cold water spray system performs a standard cleaning of the equipment's interior. In production mode, the transmission system drives the tray to start rotating, and the steam pipeline system continuously inputs high-temperature steam into the sterilization section to maintain the internal temperature within a preset range; the cooling pipeline system continuously inputs cooling water into the cooling exhaust transition zone and the cooling section. Once the internal temperature of the sterilization section reaches the target, the material is conveyed to the corresponding position in the input section via an external conveyor. In the input section, the push-in / push-out device pushes the material from the external conveyor onto the normally operating tray according to instructions. The material, along with the tray, follows the chain path sequentially through the input section, cooling exhaust zone, sterilization section, cooling exhaust transition zone, cooling section, and finally enters the output section. At the corresponding position in the output section, it is pushed in / push-out onto the external conveyor, completing the entire material sterilization and cooling process. The process is as follows: Figure 2 As shown.
[0036] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical substance of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A material sterilization and cooling device, characterized in that, The sterilization and cooling device includes: A high-temperature sterilization device, located in the upstream section of the device, is connected to the section via a steam pipeline to achieve high-temperature sterilization; Cooling equipment, located in the downstream section of the device, uses a cooling pipeline system to cool the materials; The transmission system arranges the various sections of the sterilization and cooling device into a U-shaped circulation layout, and uses a combination of motor and worm gear reducer to transmit power through sprockets, chains and couplings.
2. The material sterilization and cooling device according to claim 1, characterized in that, The transmission system includes a motor, sprockets and chains, worm gear reducer combinations, and a transmission sprocket device. The transmission system uses several coaxial couplings, with first worm gear reducer combinations between the couplings. The motor synchronously drives multiple first worm gear reducer combinations through the sprockets, chains, and couplings. At the same time, the first worm gear reducer combinations drive the corresponding transmission sprocket devices to rotate, synchronously transmitting materials in different rows in the sterilization and cooling sections.
3. The material sterilization and cooling device according to claim 1, characterized in that, The transmission system is equipped with a chain, which is connected to the transmission system. The chain forms a loop through multiple transmission sprocket devices, guide sprocket devices, and tension sprocket devices arranged at set positions in the sterilization section and the cooling section. Under the drive of the transmission sprocket devices, the chain rotates at a set speed.
4. The material sterilization and cooling device according to claim 1, characterized in that, The material is placed in a tray, which has lugs at both ends. The lugs are mounted on a chain, and the bottom of the tray remains parallel to the ground as it moves with the chain.
5. The material sterilization and cooling device according to claim 1, characterized in that, The high-temperature sterilization equipment includes a steam pipeline system that supplies high-temperature steam to the sterilization section.
6. The material sterilization and cooling device according to claim 1, characterized in that, The cooling equipment includes a cooling pipeline system in which cooling water is continuously supplied, and is arranged in the cooling exhaust transition zone and the cooling section.
7. The material sterilization and cooling device according to claim 6, characterized in that, The cooling and ventilation transition zone is equipped with a ventilation duct and a first spray pipe. The ventilation duct is connected to an external fan to remove the steam overflowing from the sterilization section outlet.
8. The material sterilization and cooling device according to claim 2, characterized in that, A cleaning pipe is provided at the upper part of the sterilization section, and a steam pipe and a first water receiving tray are provided at the corresponding position at the lower part of the cleaning pipe; End partitions are provided at both ends of the sterilization section.
9. The material sterilization and cooling device according to claim 8, characterized in that, In the cooling section, a second spray pipe is provided at the top, a third spray pipe is provided at the bottom, and a second water receiving tray is provided. Both the first and second spray pipes are connected to the cooling pipeline system. Water mist is sprayed out under the supply of the cooling pipeline system to cool the materials in the cooling section. The drain outlet of the second water collection tray is connected to the cooling pipeline system, which sends all the collected water after heat exchange to the cooling pipeline system for treatment and recycling.