A high-efficiency oil filtration device for deep-frying tofu puffs

Abstract

This utility model provides a high-efficiency oil filtration device for tofu puff frying equipment, including a fryer, an oil storage tank set on one side of the fryer, and a filtration and circulation device. The filtration and circulation device includes a main discharge pipe, a sedimentation tank, a discharge branch pipe, a recovery pipe, a circulation pipe, a filter screen, a pair of transfer pumps, and several solenoid valves.

Description

Technical Field

[0001] This utility model relates to the technical field of soybean product production equipment, and in particular to a high-efficiency oil filtration device for deep-frying tofu puffs. Background Technology

[0002] The production process of tofu puffs includes raw material processing, soaking, crumbling, rinsing, grinding, soaking, filtering, boiling, swirling, shaping, washing, filtering, frying, preservation, and packaging. The frying process requires manual labor, including placing the tofu puffs in the fryer, frying, removing them from the fryer, filtering and cooling, and transferring them. A deep fryer is used, with a large amount of cooking oil added to the fryer's oil pan and heated for frying. During frying, a large amount of tofu residue mixed with oil is produced. If this mixture is not cleaned promptly, it will affect the taste and freshness of the subsequent fried tofu puffs. Therefore, in... After several batches of tofu puffs have been fried, the mixture and impurities in the oil pot need to be cleaned regularly. The method used is to pump the oil from the oil pot back to a temporary storage tank using a liquid pump, separating the mixture and impurities during the pumping process. After the pumping is complete, the mixture and impurities in the oil pot are cleaned. After cleaning, the oil in the storage tank is transferred back to the pot to continue frying the tofu puffs. The above steps are repeated before changing the oil. The existing circulation method has problems such as incomplete removal of mixture and impurities and a large amount of waste of cooking oil during the circulation process, which urgently need to be improved. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a high-efficiency oil filtration device for tofu puff frying equipment, comprising a fryer, an oil storage tank disposed on one side of the fryer, and a filtration and circulation device. The filtration and circulation device includes a main discharge pipe, a sedimentation tank, a discharge branch pipe, a recovery pipe, a circulation pipe, a filter screen, a pair of transfer pumps, and several solenoid valves. The bottom of the oil pot of the fryer has a discharge port, and the side wall of the oil pot has a return port. One end of the main discharge pipe is connected to the discharge port, and the other end is connected to the sedimentation tank via the transfer pump. Both ends of the recovery pipe are connected to the top of the sedimentation tank and the side wall of the oil storage tank, respectively. The filter screen is disposed on the recovery pipe at the connection position with the sedimentation tank. The discharge branch pipe is connected to the sedimentation tank. One end of the circulation pipe is connected to the side wall of the oil storage tank via the transfer pump, and the other end is connected to the return port. The several solenoid valves are respectively fixedly disposed on the main discharge pipe, the discharge branch pipe, the recovery pipe, and the circulation pipe, and are connected to the pair of transfer pumps via a PLC controller.

[0004] Using the above technical solution, a filtration and circulation device is installed between the fryer and the oil storage tank, including a main discharge pipe, a sedimentation tank, a discharge branch pipe, a recovery pipe, a circulation pipe, a filter screen, a pair of transfer pumps, and several solenoid valves. When filtering impurities from the oil, the transfer pump connected to the main discharge pipe is activated. At this time, the solenoid valves on the main discharge pipe and the recovery pipe open, while the solenoid valves on the discharge branch pipe and the circulation pipe close. The oil in the fryer is pumped into the sedimentation tank along the main discharge pipe. When the sedimentation tank is full, the oil flows through the inlet equipped with the filter screen into the oil storage tank via the recovery pipe. When the oil in the fryer is nearly empty, the solenoid valve on the recovery pipe is closed. Open the solenoid valve of the discharge branch pipe to discharge the remaining oil through the sedimentation tank. At the same time, discharge the impurities at the bottom and the sediment in the sedimentation tank. After cleaning the pot and emptying the main discharge pipe and the discharge branch pipe, close the solenoid valve of the main discharge pipe and the transfer pump. Open the solenoid valve of the circulation pipe and the transfer pump to pump the oil in the oil storage tank back into the oil pot. Then you can start a new round of frying tofu puffs. The sedimentation tank and the bottom-up filtration method can efficiently filter impurities and reduce the risk of filter screen clogging. Thorough filtration can also reduce the waste of oil that can still be used.

[0005] A further feature of this invention is that a flushing pipe connected to a water source is provided on the side wall of the sedimentation tank opposite to the discharge branch pipe, and a solenoid valve is also provided on the flushing pipe.

[0006] By adopting the above technical solution, since a flushing pipe connected to a water source is provided on the side wall of the sedimentation tank opposite to the discharge branch pipe, and a solenoid valve is also provided on the flushing pipe, the sedimentation tank can be cleaned efficiently and completely when cleaning the inside of the tank and the main discharge pipe, as it is difficult to clean the sedimentation tank completely. By setting up an additional flushing pipe and opening the solenoid valve of the flushing pipe during cleaning, the sedimentation tank can be cleaned efficiently and completely, avoiding the accumulation of sediment in the sedimentation tank.

[0007] A further feature of this invention is that a filter tank is provided on the discharge port, and a large filter screen is provided on the filter tank, and the large filter screen is detachably connected to the filter tank.

[0008] By adopting the above technical solution, since a filter tank is also provided on the discharge port, and a large filter screen is provided on the filter tank, the large filter screen is detachably connected to the filter tank. By setting a filter screen with a relatively large diameter on the discharge port, larger foreign objects, such as some tofu puffs that have not been poured out in time, can be filtered to avoid clogging the main discharge pipe and transfer pump.

[0009] A further feature of this invention is that a pair of pull rings are provided on the large filter screen.

[0010] By adopting the above technical solution, since the large filter screen is equipped with a pair of pull rings, the filter screen can be easily removed for separate cleaning.

[0011] A further feature of this invention is that the bottom surface of the filter tank is an inclined surface that slopes towards the discharge port.

[0012] By adopting the above technical solution, since the bottom surface of the filter tank is an inclined surface that slopes towards the discharge port, it can be ensured that all the oil and impurities in the pot can smoothly enter the main discharge pipe. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of a high-efficiency oil filtration device for a tofu puff frying equipment according to a specific embodiment of the present invention.

[0014] Appendix Figure 2 This is a partial structural schematic diagram of a high-efficiency oil filtration device for a tofu puff frying equipment according to a specific embodiment of the present invention.

[0015] Appendix Figure 3 This is a partial cross-sectional schematic diagram of the filtration and circulation device in a high-efficiency oil filtration device for frying tofu puffs, according to a specific embodiment of this utility model.

[0016] Appendix Figure 4 This is a partial exploded structural diagram of a high-efficiency oil filtration device for a tofu puff frying equipment according to a specific embodiment of the present invention.

[0017] 1-Fryer, 2-Oil storage tank, 3-Filter circulation device, 4-Main discharge pipe, 5-Sedimentation tank, 6-Discharge branch pipe, 7-Recovery pipe, 8-Circulation pipe, 9-Filter screen, 10-Transfer pump, 11-Solenoid valve, 12-Discharge port, 13-Return port, 14-Flushing pipe, 15-Filter tank, 16-Large filter screen, 17-Pull ring. Detailed Implementation

[0018] like Figure 1-4As shown, a high-efficiency oil filtration device for frying tofu puffs includes a fryer 1, an oil storage tank 2 located on one side of the fryer, and a filtration and circulation device 3. The filtration and circulation device includes a main discharge pipe 4, a sedimentation tank 5, a discharge branch pipe 6, a recovery pipe 7, a circulation pipe 8, a filter screen 9, a pair of transfer pumps 10, and several solenoid valves 11. The bottom of the oil pot of the fryer has a discharge port 12, and the side wall of the oil pot has a return port 13. One end of the main discharge pipe is connected to the discharge port, and the other end is connected to the sedimentation tank through the transfer pump. The two ends of the recovery pipe are respectively connected to the top of the sedimentation tank and the side wall of the oil storage tank. The filter screen is located at the connection position between the recovery pipe and the sedimentation tank. The discharge branch pipe is connected to the sedimentation tank. One end of the circulation pipe is connected to the side wall of the oil storage tank through the transfer pump, and the other end is connected to the return port. The several solenoid valves are respectively fixedly installed on the main discharge pipe, the discharge branch pipe, the recovery pipe, and the circulation pipe, and are connected to the pair of transfer pumps through a PLC controller.

[0019] A filtration and circulation device, including a main discharge pipe, sedimentation tank, discharge branch pipe, recovery pipe, circulation pipe, filter screen, a pair of transfer pumps, and several solenoid valves, is installed between the fryer and the oil storage tank. When filtering impurities from the oil, the transfer pump connected to the main discharge pipe is activated. At this time, the solenoid valves on the main discharge pipe and the recovery pipe open, while the solenoid valves on the discharge branch pipe and the circulation pipe close. The oil in the fryer is pumped into the sedimentation tank along the main discharge pipe. Once the sedimentation tank is full, the oil flows through the filter screen into the oil storage tank via the recovery pipe. When the oil in the fryer is nearly empty, the solenoid valve on the recovery pipe is closed, and the discharge branch pipe is opened. The solenoid valve on the branch pipe discharges the remaining oil through the settling tank from the drain branch pipe, simultaneously discharging the impurities at the bottom and the sediment in the settling tank. After cleaning the pot and emptying the main drain pipe and the drain branch pipe, the solenoid valve on the main drain pipe and the transfer pump can be closed, and the solenoid valve on the circulation pipe and the transfer pump can be opened to pump the oil from the oil storage tank back into the oil pot. Then, a new round of frying tofu puffs can begin. The settling tank and the bottom-up filtration method can efficiently filter impurities and reduce the risk of filter clogging. Thorough filtration can also reduce the waste of oil that can still be used.

[0020] The sedimentation tank has a flushing pipe 14 connected to a water source on the side wall opposite to the discharge branch pipe, and the flushing pipe is also equipped with a solenoid valve.

[0021] Because the sedimentation tank has a flushing pipe connected to a water source on the side wall opposite to the discharge branch pipe, and the flushing pipe is also equipped with a solenoid valve, when cleaning the inside of the tank and the main discharge pipe, it is difficult to clean the sedimentation tank completely. By setting up an additional flushing pipe and opening the solenoid valve of the flushing pipe during cleaning, the sedimentation tank can be cleaned efficiently and completely, avoiding the accumulation of sediment in the sedimentation tank.

[0022] The discharge port is also provided with a filter tank 15, and a large filter screen 16 is provided on the filter tank. The large filter screen is detachably connected to the filter tank.

[0023] Since a filter tank is also provided on the discharge port, and a large filter screen is provided on the filter tank, the large filter screen is detachably connected to the filter tank. The filter screen with a relatively large diameter is provided on the discharge port to filter out large foreign objects, such as some tofu puffs that are not poured out in time, so as to avoid clogging the main discharge pipe and transfer pump.

[0024] The large filter screen is equipped with a pair of pull rings 17.

[0025] Because the large filter screen is equipped with a pair of pull rings, the filter screen can be easily removed for separate cleaning.

[0026] The bottom surface of the filter tank is an inclined surface that slopes towards the discharge port.

[0027] Because the bottom surface of the filter tank is an inclined surface that slopes towards the discharge port, it can ensure that all the oil and impurities in the pot can smoothly enter the main discharge pipe.

Claims

1. A high-efficiency oil filtration device for deep-frying tofu puffs, comprising a deep fryer, an oil storage tank disposed on one side of the deep fryer, and a filtration and circulation device, characterized in that: The filtration and circulation device includes a main discharge pipe, a sedimentation tank, a discharge branch pipe, a recovery pipe, a circulation pipe, a filter screen, a pair of transfer pumps, and several solenoid valves. The fryer has a discharge port at the bottom of its oil pan and a return port on its side wall. One end of the main discharge pipe is connected to the discharge port, and the other end is connected to the sedimentation tank via the transfer pump. Both ends of the recovery pipe are connected to the top of the sedimentation tank and the side wall of the oil storage tank, respectively. The filter screen is located at the connection point between the recovery pipe and the sedimentation tank. The discharge branch pipe is connected to the sedimentation tank. One end of the circulation pipe is connected to the side wall of the oil storage tank via the transfer pump, and the other end is connected to the return port. The several solenoid valves are fixedly installed on the main discharge pipe, the discharge branch pipe, the recovery pipe, and the circulation pipe, and are connected to the pair of transfer pumps via a PLC controller.

2. The high-efficiency oil filtration device for deep-frying tofu puffs according to claim 1, characterized in that: The sedimentation tank has a flushing pipe connected to a water source on the side wall opposite to the discharge branch pipe, and the flushing pipe is also equipped with a solenoid valve.

3. The high-efficiency oil filtration device for deep-frying tofu puffs according to claim 1, characterized in that: The discharge port is also equipped with a filter tank, and the filter tank is equipped with a large filter screen, which is detachably connected to the filter tank.

4. The high-efficiency oil filtration device for deep-frying tofu puffs according to claim 3, characterized in that: The large filter screen is equipped with a pair of pull rings.

5. The high-efficiency oil filtration device for deep-frying tofu puffs according to claim 3, characterized in that: The bottom surface of the filter tank is an inclined surface that slopes towards the discharge port.

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