Rice oil dewaxing and filtering device

Abstract

The invention relates to the field of mechanical polishing, in particular to a rice oil dewaxing and filtering device. Comprising a filter tank, a storage tank and precipitation dewaxing tanks, a detachable filter frame is arranged on the upper side of the filter tank, a filter screen is arranged on the lower side of the filter frame, the storage tank is arranged above the filter tank, a plurality of dewaxing tanks are arranged on the two sides of the upper portion of the storage tank in an array mode, and a dewaxing tank body is of a cylindrical tank body structure; a cooling cavity is formed in a tank body between the inner wall and the outer wall of the dewaxing tank, and the third outlet is provided with a manual valve. According to the device, a plurality of precipitation dewaxing tanks are arranged to be matched with an upper storage tank to realize adjustment of time difference, so that production and processing are performed at a constant speed in the dewaxing and filtering process of rice oil, dewaxing is not influenced when a filter screen is replaced, and meanwhile, large-particle wax crystals are attached, lifted and taken out through an arranged condensation attachment frame, so that when the filter screen is used for filtering, the quality of the rice oil is improved. Small-particle wax crystals are filtered, so that the service time of the filter screen is greatly prolonged.

Description

Technical Field

[0001] This invention relates to the field of mechanical polishing, and more particularly to a rice bran oil dewaxing and filtering device. Background Technology

[0002] Dewaxing and filtration of rice bran oil is a crucial step in the refining process. Its core purpose is to remove wax from the oil, improving its transparency, low-temperature stability, and quality, while also enhancing its taste and storage properties. The following is a detailed process flow, principle, and key technical points: First, the rice bran oil, after degumming, deacidification, and decolorization, is preheated to 60-70℃ to ensure complete dissolution of the wax and to remove trace impurities and moisture. First, the temperature is slowly lowered to 20-25℃ and held for 1-2 hours to allow the wax to initially form tiny crystal nuclei. Then, the temperature is uniformly lowered to 8-12℃ and held for 8-12 hours to allow the crystal nuclei to gradually grow into wax crystals with uniform particle size. Stirring is performed uniformly during both cooling processes. Finally, the wax is sieved. After sieving, the temperature is raised to around 40℃. Currently, dewaxing is mostly done batch by batch, which takes a long time and cannot be done continuously. Furthermore, when using membrane filters, the filter pores are easily clogged, leading to frequent replacements. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies, adapt to practical needs, and provide a rice bran oil dewaxing and filtering device, including a filter tank, a storage tank, and a dewaxing tank. A detachable filter frame is provided on the upper side of the filter tank, and a filter screen is provided on the lower side of the filter frame. A storage tank is located above the filter tank, and multiple dewaxing tanks are arranged in an array on both sides above the storage tank. The main body of each dewaxing tank is a cylindrical tank structure, with the top of the tank completely penetrating through it. A cooling cavity is provided between the inner and outer walls of the dewaxing tank. The top side of the dewaxing tank and... The lower side is provided with a coolant outlet and a coolant inlet. An end cap is provided at the opening above the dewaxing tank. A stirring motor is provided above the end cap. The rotating shaft of the stirring motor passes through the end cap and is connected to a stirring rod. A first outlet is provided at the bottom of the dewaxing tank. A bent pipe extending into the storage tank is provided below the first outlet. A first solenoid valve is provided on the bent pipe. A second outlet is provided at the bottom of the storage tank. A second solenoid valve is provided at the second outlet. A third outlet is provided on one side of the bottom of the filter tank. A manual valve is provided at the third outlet.

[0004] An annular mounting groove is provided on the upper side of the filter tank, and the filter frame is installed in the mounting groove.

[0005] The precipitation dewaxing tank array has two rows. The coolant inlet of each row of precipitation dewaxing tanks is connected to the coolant inlet main pipe through an inlet branch pipe. The coolant outlet of each row of precipitation dewaxing tanks is connected to the coolant outlet main pipe through an outlet branch pipe. Both the coolant outlet main pipe and the coolant inlet main pipe are connected to a liquid refrigeration tank. The coolant inlet main pipe is equipped with a water pump. Each inlet branch pipe is equipped with a third solenoid valve.

[0006] The stirring rod is provided with a condensation attachment frame, which includes a crossbar, an attachment block, and an attachment ring. The stirring rod is provided with multiple crossbars in a circular array and a vertical array. Each crossbar is provided with multiple attachment blocks, and each layer of crossbars is provided with an attachment ring on its outer ring.

[0007] The precipitation dewaxing tank is provided with a top plate, and a lifting cylinder is provided above the top plate. The air pressure rod below the lifting cylinder is connected to the end cap.

[0008] A support plate is provided above the filter tank, and the storage tank is placed on the support plate.

[0009] The outer ring of the third outlet at the bottom of the filter tank is covered with a heating sleeve, and a heating resistor is wound around the heating sleeve.

[0010] The beneficial effects of this invention are as follows: This device adjusts the time difference by setting up multiple dewaxing tanks in conjunction with storage tanks, so that the rice bran oil dewaxing and filtration process can be carried out at a uniform speed. The dewaxing process will not be affected when the filter screen is replaced. At the same time, the condensation attachment rack lifts up and removes large wax crystals, so that only small wax crystals are filtered during the filter screen filtration, which greatly increases the service life of the filter screen. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view diagram; Figure 3 Cross-sectional view of the precipitation dewaxing tank; Figure 4 This is a cross-sectional view of the heating jacket. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: See Figure 1-4 .

[0014] This invention discloses a rice bran oil dewaxing and filtration device, comprising a filter tank 1, a storage tank 2, and a precipitation dewaxing tank 3. A detachable filter frame 4 is provided on the upper side of the filter tank, and a filter screen 5 is provided on the lower side of the filter frame. A storage tank is located above the filter tank, and multiple dewaxing tanks are arranged in an array on both sides above the storage tank. Each dewaxing tank has a cylindrical tank structure, with its top completely penetrating. A cooling cavity 6 is provided between the inner and outer walls of the dewaxing tank. A coolant outlet 8 is provided on one side above the dewaxing tank, and a cooling... The dewaxing tank has a liquid inlet 7, an end cap 9 at the opening above the dewaxing tank, a stirring motor 10 above the end cap, a stirring rod 11 connected to the stirring motor shaft passing through the end cap, a first outlet 12 at the bottom of the dewaxing tank, a bent pipe 13 extending into the storage tank below the first outlet, a first solenoid valve 14 on the bent pipe, a second outlet 15 at the bottom of the storage tank, a second solenoid valve 16 at the second outlet, and a third outlet 17 on one side of the bottom of the filter tank, with a valve 18 at the third outlet. Undewaxed rice bran oil is heated to about 60 degrees Celsius and poured into the precipitation dewaxing tank 3. It is stirred at a constant speed by a stirring rod, and the cooling liquid is continuously introduced into the cooling cavity 6 for heat exchange. After cooling to 8~12 degrees Celsius, it is allowed to stand, and the wax crystals slowly increase in size. After completion, the first outlet 12 is opened, and the rice bran oil and fine wax particles are put into the storage tank 2. Then, it flows into the filter tank 1 through the second outlet 15 and is filtered by the filter screen. Multiple precipitation dewaxing tanks 3 are used for dewaxing at intervals, while the storage tank 2 can continuously supply oil. When the filter screen needs to be replaced, the second solenoid valve 16 is closed for replacement without affecting the operation of the precipitation dewaxing tank 3.

[0015] An annular mounting groove 19 is provided on the upper side of the filter tank, and the filter frame is installed in the mounting groove. The use of the annular mounting groove 19 makes installation and disassembly more convenient and speeds up replacement.

[0016] The coolant inlets of each row of precipitation dewaxing tanks are connected to the main coolant inlet pipe 20 via inlet branch pipe 21, and the coolant outlets of each row of precipitation dewaxing tanks are connected to the main coolant outlet pipe 22 via outlet branch pipe. Both the main coolant outlet pipe and the main coolant inlet pipe are connected to the liquid refrigeration tank 25. The main coolant inlet pipe is equipped with a water pump 23, and each inlet branch pipe is equipped with a third solenoid valve 24. The coolant is pumped into the cooling cavity 6 through the coolant inlet 7 at the bottom. Each cooling cavity 6 is controlled by a corresponding third solenoid valve 24 to control the flow rate and on / off state, thereby accurately controlling the temperature and enabling multiple precipitation dewaxing tanks 3 to operate independently.

[0017] The stirring rod is equipped with a condensation attachment frame 26, which includes a crossbar 27, an attachment block 28, and an attachment ring 29. Multiple crossbars are arranged in a circular and vertical array on the stirring rod, each crossbar having multiple attachment blocks, and each layer of crossbars has an attachment ring on its outer ring. During prolonged uniform stirring and cooling to produce wax crystals, the wax crystals adhere to the condensation attachment frame 26 and continuously increase in size. After completion, the large wax crystal particles no longer need to be filtered through the filter screen, preventing rapid clogging of the filter. The rice bran oil and small wax crystal particles are filtered, increasing the product's lifespan.

[0018] A top plate 30 is provided above the dewaxing tank, and a lifting cylinder 31 is provided above the top plate. The air pressure rod below the lifting cylinder is connected to the end cap. The lifting cylinder lifts the condensate attachment rack 26, and after the worker removes the wax block on the condensate attachment rack 26, the next batch of rice bran oil can be dewaxed.

[0019] A support plate 34 is provided above the filter tank, and the storage tank is provided on the support plate.

[0020] The outer ring of the third outlet at the bottom of the filter tank is covered with a heating sleeve 35, and a heating resistor 36 is wound around the heating sleeve. After dewaxing, the rice bran oil is heated by the heating resistor 36 to make it flow smoothly and clearly.

[0021] Specific operations Workers sequentially fill each dewaxing tank 3 with heated rice bran oil, continuously stirring it at a uniform speed using a stirring rod, while coolant is continuously pumped into the coolant outlet 8 for uniform cooling. After cooling to a certain temperature, the tank is left to stand, allowing wax crystals to adhere to the condensation attachment rack 26 and crystallize continuously. When the time is up, the condensation attachment rack 26 is lifted by a pneumatic cylinder, and workers clean the condensation attachment rack 26. At the same time, the rice bran oil flows from the first outlet into the storage tank 2, and then flows out evenly through the second outlet of the storage tank 2 for filtration.

[0022] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or any direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A rice bran oil dewaxing and filtering device, characterized in that: The system includes a filter tank (1), a storage tank (2), and a dewaxing tank (3). A detachable filter frame (4) is provided on the upper side of the filter tank, and a filter screen (5) is provided on the lower side of the filter frame. A storage tank is located above the filter tank, and multiple dewaxing tanks are arranged in an array on both sides above the storage tank. The main body of each dewaxing tank is a cylindrical tank structure, with the top of the tank completely through it. A cooling cavity (6) is provided between the inner and outer walls of the dewaxing tank. A coolant outlet (8) and a coolant inlet (7) are respectively provided on the upper and lower sides of the dewaxing tank. An end cap (9) is provided at the opening at the top. A stirring motor (10) is provided above the end cap. The shaft of the stirring motor passes through the end cap and is connected to a stirring rod (11). A first outlet (12) is provided at the bottom of the dewaxing tank. A bent pipe (13) extending into the storage tank is provided below the first outlet. A first solenoid valve (14) is provided on the bent pipe. A second outlet (15) is provided at the bottom of the storage tank. A second solenoid valve (16) is provided at the second outlet. A third outlet (17) is provided on one side of the bottom of the filter tank. A valve (18) is provided at the third outlet.

2. The rice bran oil dewaxing and filtering device according to claim 1, characterized in that: An annular mounting groove (19) is provided on the upper side of the filter tank, and the filter frame is installed in the mounting groove.

3. The rice bran oil dewaxing and filtering device according to claim 1, characterized in that: The coolant inlet of each row of precipitation dewaxing tanks is connected to the coolant inlet main pipe (20) via an inlet branch pipe (21) and the coolant outlet of each row of precipitation dewaxing tanks via an outlet branch pipe and the coolant outlet main pipe (22). The coolant outlet main pipe and the coolant inlet main pipe are both connected to the liquid refrigeration tank (25). The coolant inlet main pipe is equipped with a water pump (23). Each inlet branch pipe is equipped with a third solenoid valve (24).

4. The rice bran oil dewaxing and filtering device according to claim 1, characterized in that: The stirring rod is provided with a condensation attachment frame (26), which includes a crossbar (27), an attachment block (28), and an attachment ring (29). The stirring rod is provided with multiple crossbars in a ring array and a vertical array, and multiple attachment blocks are provided on each crossbar. An attachment ring is provided on the outer ring of each layer of crossbars.

5. The rice bran oil dewaxing and filtering device according to claim 1, characterized in that: A top plate (30) is provided above the precipitation dewaxing tank, and a lifting cylinder (31) is provided above the top plate. The air pressure rod below the lifting cylinder is connected to the end cap.

6. The rice bran oil dewaxing and filtering device according to claim 1, characterized in that: A support plate (34) is provided above the filter tank, and the storage tank is provided on the support plate.

7. The rice bran oil dewaxing and filtering device according to claim 1, characterized in that: The outer ring of the third outlet at the bottom of the filter tank is covered with a heating sleeve (35), and a heating resistor (36) is wound around the heating sleeve.

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