Corn precooler

Abstract

The utility model belongs to the technical field of fresh corn precooling, and particularly discloses a corn precooler which comprises a precooling bin, a conveyor is arranged in the precooling bin in a penetrating mode, one side of the precooling bin is connected with a feeding hopper, the front end of the conveyor is located at the bottom of the feeding hopper, the interior of the precooling bin is divided into a wet bin and a dry bin through a partition plate, and the conveyor penetrates through the partition plate. A motor is fixedly connected to the side wall of the pre-cooling bin, a rotating shaft of the motor penetrates through the side wall of the pre-cooling bin and is connected with the conveyor, a plurality of spraying pipes are fixedly connected into the wet bin, the spraying pipes are located above the conveyor and comprise a cooling-water machine, a water outlet of the cooling-water machine is communicated with the spraying pipes through a water pipe, and an air dispersing disc is fixedly connected into the dry bin. The pre-cooling bin is divided into the wet bin and the dry bin, the wet bin adopts the cold water spraying pipe, cooling of cold water is facilitated, meanwhile, the cold water machine always provides clean cold water, the risk of pollution caused by long-time use of the cold water is avoided, and the dry bin sucks dry cold air through the induced draft fan to rapidly cool corn.

Description

Technical Field

[0001] This utility model belongs to the field of fresh corn precooling technology, specifically a corn precooling machine. Background Technology

[0002] Fresh corn is rich in nutrients and boasts a unique and diverse flavor. However, because the edible part of fresh corn is the immature, tender ear, it undergoes vigorous respiration and metabolism after harvesting, resulting in high sugar content and susceptibility to water loss and spoilage. Therefore, it is suitable for large-scale automated rapid processing to improve product quality and production efficiency. If corn is directly flash-frozen after steaming, the surface moisture quickly forms an ice shell while the internal temperature remains relatively high. This significantly prolongs the freezing time, consumes a large amount of energy, and is highly inefficient. Therefore, most manufacturers incorporate a pre-cooling process between the steaming and flash-freezing stages. Once the corn surface temperature drops below 35 degrees Celsius and the temperature gradient with the cob decreases significantly, the flash-freezing stage can begin. This ensures effective freezing while improving production efficiency.

[0003] The two most commonly used precooling processes are water precooling and air precooling. Water precooling requires water cooling followed by draining, which takes a long time. In addition, water precooling often uses water tanks, which can easily contaminate the corn that is subsequently cooled. In air precooling, the cooked corn tends to accumulate on the conveyor belt, which prevents the corn inside from cooling down. Utility Model Content

[0004] To address the above technical problems, this utility model provides a corn precooling machine.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows: a corn precooling machine, including a precooling chamber, a conveyor running through the interior of the precooling chamber, a feeding hopper connected to one side of the precooling chamber, the front end of the conveyor located at the bottom of the feeding hopper, the interior of the precooling chamber being divided into a wet chamber and a dry chamber by a partition, the conveyor passing through the partition, a motor fixedly connected to the side wall of the precooling chamber, the motor shaft passing through the side wall of the precooling chamber and connected to the conveyor, and a plurality of spray pipes fixedly connected inside the wet chamber. Above the conveyor, there is a chiller. The outlet of the chiller is connected to the spray pipe via a water pipe. A diffuser plate is fixedly connected inside the dry chamber, including a cooler and a drying box. The cooler is connected to the drying box. A fan is connected to the air outlet of the drying box. The fan is connected to the diffuser plate via an air duct. The diffuser plate has an S-shaped air duct with air holes. Several exhaust fans are installed on the top of the precooling chamber. Soft curtains are fixedly connected above the openings of the side walls and partitions of the precooling chamber that contact the conveyor.

[0006] Furthermore, the conveyor is a breathable mesh belt conveyor.

[0007] Furthermore, the wet chamber has a vent on its side wall, which is located below the conveyor, and the bottom of the wet chamber is connected to a wastewater tank.

[0008] Furthermore, a water pump is installed on the water pipe, and several nozzles are connected to the bottom of the spray pipe.

[0009] Furthermore, a silica gel drying layer is provided inside the drying oven.

[0010] Furthermore, a support frame is connected to the bottom of the pre-cooling chamber.

[0011] This utility model has the following advantages compared with the prior art:

[0012] This invention divides the pre-cooling chamber into a wet chamber and a dry chamber. The wet chamber uses a cold water spray pipe, which is beneficial for cooling with cold water. At the same time, the chiller continuously provides clean cold water, eliminating the risk of contamination caused by prolonged use of cold water. The dry chamber uses an induced draft fan to draw in dry cold air to quickly cool the corn. Simultaneously, the water on the corn is drawn away, which also removes heat. The pre-cooling effect is good and the pre-cooling speed is fast. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the partition structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the wet chamber of this utility model.

[0016] Figure 4 This is a schematic diagram of the air diffuser structure of this utility model.

[0017] The components are as follows: 1. Pre-cooling chamber, 2. Wet chamber, 3. Dry chamber, 4. Conveyor, 5. Partition, 5a. Opening, 6. Spray pipe, 7. Nozzle, 8. Feed hopper, 9. Vent, 10. Support frame, 11. Wastewater tank, 12. Air cooler, 13. Drying box, 14. Silica gel drying layer, 15. Fan, 16. Air diffuser, 17. Exhaust fan, 18. Motor, 19. Soft curtain, 20. Chiller, 21. Water pump, 22. Water pipe, 23. Air duct, 24. Air hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figures 1-4The corn precooling machine shown includes a precooling chamber 1, with a conveyor 4 running through it. A feed hopper 8 is connected to one side of the precooling chamber 1, and the front end of the conveyor 4 is located at the bottom of the feed hopper 8. The precooling chamber 1 is divided into a wet chamber 2 and a dry chamber 3 by a partition 5, with the conveyor 4 passing through the partition 5. A motor 18 is fixedly connected to the side wall of the precooling chamber 1, and the shaft of the motor 18 passes through the side wall of the precooling chamber 1 and is connected to the conveyor 4. Several spray pipes 6 are fixedly connected inside the wet chamber 2, located above the conveyor 4. A chiller 20 is also included. The outlet of 20 is connected to the spray pipe 6 through the water pipe 22. The air diffuser plate 16 is fixedly connected inside the dry chamber 3, including the air cooler 12 and the drying box 13. The air cooler 12 is connected to the drying box 13. The air outlet of the drying box 13 is connected to the fan 15. The fan 15 is connected to the air diffuser plate 16 through the air pipe. The air diffuser plate 16 has an S-shaped air duct 23. The air duct 23 has air holes 24. Several exhaust fans 17 are installed on the top of the precooling chamber 1. The side wall and partition 5 of the precooling chamber 1 are fixedly connected to the opening 5a above the conveyor 4. A soft curtain 19 is fixedly connected above the opening 5a where the conveyor 4 contacts the partition plate 5.

[0020] The soft curtain is made of PEVA material.

[0021] To facilitate ventilation, conveyor 4 is a breathable mesh belt conveyor.

[0022] To facilitate the collection of wastewater, a vent 9 is provided on the side wall of the wet chamber 2. The vent 9 is located below the conveyor 4, and the bottom of the wet chamber 2 is connected to a wastewater tank 11.

[0023] The wastewater tank 11 is equipped with a drain pipe at the bottom, and a valve is installed on the drain pipe. A valve is also installed on the pipe connecting the wet chamber 2 and the wastewater tank 11.

[0024] To facilitate the supply of cold water, a water pump 21 is installed on the water pipe 22, and several nozzles 7 are connected to the bottom of the spray pipe 6.

[0025] To facilitate drying, a silica gel drying layer 14 is provided inside the drying oven 13.

[0026] For stable support, the bottom of the pre-cooling chamber 1 is connected to a support frame 10.

[0027] The specific working process of this utility model is as follows:

[0028] During operation, cooked corn is fed into the feed hopper 8. The motor 18 drives the conveyor 4 to carry the corn into the pre-cooling chamber 1. After entering the wet chamber 2, the chiller 20 generates cold water, which is pumped by the water pump 21 through the water pipe 22 to the spray pipe 6 and sprayed onto the corn by the nozzle 7 for water cooling. When there is too much water in the wet chamber 2, the valve is opened to drain the water into the wastewater tank 11. The exhaust fan 17 at the top of the wet chamber 2 works to discharge moisture and heat from the wet chamber 2. The vent 9 maintains the air pressure balance. After the corn passes through the partition 5, the cold air fan delivers cold air. When the cold air passes through the drying chamber 13, the silica gel drying layer 14 absorbs the moisture in the cold air. The cold air is then delivered to the air diffuser 16 by the fan 15, and discharged into the dry chamber 3 through the air duct 23 and the air hole 24. The dry chamber 3 is then drawn away by the exhaust fan 17 at the top of the dry chamber 3, which also removes some of the moisture and heat from the corn, thus completing the cold drying process.

[0029] During this process, the soft curtain 19 on the opening 5a plays a certain role in wind insulation.

Claims

1. A corn precooling machine, comprising a precooling chamber (1), wherein a conveyor (4) is disposed through the interior of the precooling chamber (1), and a feeding hopper (8) is connected to one side of the precooling chamber (1), wherein the front end of the conveyor (4) is located at the bottom of the feeding hopper (8), characterized in that: The precooling chamber (1) is divided into a wet chamber (2) and a dry chamber (3) by a partition (5). The conveyor (4) passes through the partition (5). A motor (18) is fixedly connected to the side wall of the precooling chamber (1). The shaft of the motor (18) passes through the side wall of the precooling chamber (1) and is connected to the conveyor (4). Several spray pipes (6) are fixedly connected inside the wet chamber (2). The spray pipes (6) are located above the conveyor (4) and include a chiller (20). The outlet of the chiller (20) is connected to the spray pipes (6) through a water pipe (22). A diffuser is fixedly connected inside the dry chamber (3). The air distribution plate (16) includes a cooler (12) and a drying chamber (13). The cooler (12) is connected to the drying chamber (13). The air outlet of the drying chamber (13) is connected to a fan (15). The fan (15) is connected to the air distribution plate (16) through a duct. The air distribution plate (16) has an S-shaped air duct (23). The air duct (23) has air holes (24). The top of the precooling chamber (1) is equipped with several exhaust fans (17). The side wall of the precooling chamber (1) and the opening (5a) where the partition (5) contacts the conveyor (4) are fixedly connected with a soft curtain (19).

2. The corn precooling machine according to claim 1, characterized in that: The conveyor (4) is a breathable mesh belt conveyor.

3. The corn precooling machine according to claim 1, characterized in that: The wet chamber (2) has a vent (9) on its side wall, which is located below the conveyor (4). The bottom of the wet chamber (2) is connected to a wastewater tank (11).

4. The corn precooling machine according to claim 1, characterized in that: A water pump (21) is installed on the water pipe (22), and several nozzles (7) are connected to the bottom of the spray pipe (6).

5. The corn precooling machine according to claim 1, characterized in that: The drying oven (13) is equipped with a silica gel drying layer (14).

6. The corn precooling machine according to claim 1, characterized in that: The bottom of the pre-cooling chamber (1) is connected to a support frame (10).

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