Rapeseed oil dewaxing device

Abstract

The utility model provides a rapeseed oil dewaxing device, which is characterized in that a stirring shaft is arranged inside a dewaxing tank, layered stirring blades are arranged on the stirring shaft, the stirring shaft is driven by a stirring motor below the dewaxing tank, bearings are arranged on the stirring shaft at equal intervals, hollow rings are fixed on the outer sides of the bearings, temperature control pipes which are uniformly distributed circumferentially are arranged on the hollow rings, and the temperature control pipes are connected with the stirring shaft. The temperature control pipe on one side is communicated with a vertical pipe, and the vertical pipe is communicated with an external temperature control device; the end parts of the other temperature control pipes are connected with fixing rods, and the lower ends of the fixing rods are fixed at the bottom of the dewaxing tank. The layered temperature control pipe is arranged in the dewaxing tank, the temperature control pipe is also arranged in the dewaxing tank in a layered manner, so that the temperature of rapeseed oil in the dewaxing tank can be regulated and controlled more quickly, and the temperature control pipe is connected with the temperature control device and inputs a refrigerant into the temperature control pipe, so that the temperature in the dewaxing tank is kept at the most appropriate crystallization temperature.

Description

Technical Field

[0001] The utility model relates to the field of oil dewaxing, and in particular to a rapeseed oil dewaxing device. Background Art

[0002] Oil dewaxing is the process of separating high-melting-point wax from oil to improve the quality and transparency of the oil, while also increasing its nutritional value and industrial use value. It uses the difference in solubility between oil and wax to crystallize the wax through cooling. Since wax molecules crystallize at low temperatures and form a relatively stable colloidal system, they can be removed from oil by filtration or centrifugation.

[0003] The process of oil dewaxing usually includes several steps: precooling, crystallization, crystal growth and filtration. First, the refined oil is precooled to reduce the temperature; then it enters the crystallization tank for slow stirring to optimize the crystallization effect; then suitable conditions are provided in the crystal growth tank to allow the wax crystals to grow; finally, the oil and wax are separated by filtration.

[0004] The existing dewaxing device has a poor constant temperature effect, which causes the oil in the device to be unable to maintain a good crystallization temperature, resulting in a poor crystallization effect and affecting the growth of wax grains. Utility Model Content

[0005] The utility model is based on the above technical problems and proposes a rapeseed oil dewaxing device.

[0006] A rapeseed oil dewaxing device comprises a dewaxing tank, wherein a discharge pipe is provided at the bottom of the dewaxing tank, a feed pipe is provided at the upper part of the dewaxing tank, and an air pipe is provided at the top of the dewaxing tank. A stirring shaft is provided inside the dewaxing tank, and layered stirring blades are provided on the stirring shaft. The stirring shaft is driven by a stirring motor below the dewaxing tank, and bearings with the same spacing are provided on the stirring shaft. A hollow empty ring is fixed on the outer side of the bearing, and temperature control tubes uniformly distributed in a circle are provided on the empty ring, wherein the temperature control tube on one side is connected with a vertical pipe, and the vertical pipe is connected with an external temperature control device; the ends of the other temperature control tubes are connected with a fixing rod, and the lower end of the fixing rod is fixed to the bottom of the dewaxing tank. The fixing rod is also a hollow rod, and a liquid outlet pipe is provided at the lower end thereof, and the liquid outlet pipe is also connected to the temperature control device.

[0007] Preferably, a transverse connecting rod is further provided between the fixing rod and the vertical pipe and the inner wall of the dewaxing tank.

[0008] Preferably, the temperature control tube is located between two adjacent layers of stirring blades.

[0009] Beneficial effect: The utility model arranges layered temperature control tubes in the dewaxing tank, and the temperature control tubes are also arranged in layers in the dewaxing tank, so that the temperature of the rapeseed oil in the dewaxing tank can be more quickly regulated. The temperature control tubes are connected to the temperature control device, which also inputs refrigerant into the temperature control tubes to keep the dewaxing tank at the most suitable crystallization temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Shows a schematic diagram of the structure of the utility model;

[0011] Figure 2 A top view inside a tank of the present invention is shown. DETAILED DESCRIPTION

[0012] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0013] like Figure 1~Figure 2 A rapeseed oil dewaxing device is shown, comprising a dewaxing tank 1, a discharge pipe 2 is provided at the bottom of the dewaxing tank 1, a feed pipe 3 is provided at the upper part thereof, and an air pipe 12 is provided at the top thereof. The rapeseed oil enters the dewaxing tank 1 from the feed pipe 3, a stirring shaft 5 is provided inside the dewaxing tank 1, and layered stirring blades 6 are provided on the stirring shaft 5. The stirring shaft 5 and the stirring blades 6 will drive the rapeseed oil to rotate slowly, and the stirring shaft 5 is driven by a stirring motor 4 below the dewaxing tank 1.

[0014] The stirring shaft 5 is provided with bearings 13 with the same spacing, and a hollow empty ring 7 is fixed on the outer side of the bearing 13. The empty ring 7 is provided with temperature control tubes 8 evenly distributed in a circle, and the temperature control tubes 8 are located between the upper and lower adjacent layers of stirring blades 6. The temperature control tube 8 on one side is connected with the vertical pipe 9, and the vertical pipe 9 is connected with the external temperature control device. The temperature control device introduces refrigerant into the temperature control tube 8 through the vertical pipe 9. The refrigerant can adjust the temperature of the rapeseed oil. Since the temperature control tube 8 is located between the two layers of stirring blades 6, the efficiency of uniform temperature change is also relatively fast as the rapeseed oil rotates slowly. In addition, since one end of the temperature control tube 8 is fixed on the bearing 13, the temperature control tube 8 will not rotate with the stirring shaft 5, thereby ensuring the stability of the temperature control tube 8 and avoiding interference with the stirring blades 6; the other ends of the temperature control tube 8 are connected to the fixed rod 10, and the lower end of the fixed rod 10 is fixed to the bottom of the dewaxing tank 1. The fixed rod 10 can further ensure the stability of the temperature control tube 8.

[0015] In order to improve the heat exchange efficiency of the refrigerant, the fixed rod 10 is also set as a hollow rod, and a liquid outlet pipe is provided at its lower end. The liquid outlet pipe is also connected to the temperature control device. The refrigerant re-enters the temperature control device from the liquid outlet pipe to form a heat exchange cycle.

[0016] In order to ensure the stability of the fixed rod 10 and the vertical pipe 9 during stirring, a transverse connecting rod 11 is further provided between the fixed rod 10 and the vertical pipe 9 and the inner wall of the dewaxing tank 1 .

[0017] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rapeseed oil dewaxing device, comprising a dewaxing tank, wherein the dewaxing tank is provided with a discharge pipe at the bottom, a feed pipe at the top, and an air pipe at the top, wherein: A stirring shaft is provided inside the dewaxing tank, and layered stirring blades are provided on the stirring shaft. The stirring shaft is driven by a stirring motor below the dewaxing tank, and bearings with the same spacing are provided on the stirring shaft. A hollow empty ring is fixed on the outer side of the bearing, and temperature control tubes evenly distributed in a circle are provided on the empty ring. The temperature control tube on one side is connected with a vertical pipe, and the vertical pipe is connected with an external temperature control device; the other ends of the temperature control tubes are connected with a fixed rod, and the lower end of the fixed rod is fixed to the bottom of the dewaxing tank. The fixed rod is also a hollow rod, and a liquid outlet pipe is provided at its lower end, and the liquid outlet pipe is also connected to the temperature control device.

2. The rapeseed oil dewaxing device according to claim 1, characterized in that: A transverse connecting rod is also provided between the fixing rod, the vertical pipe and the inner wall of the dewaxing tank.

3. The rapeseed oil dewaxing device according to claim 1, characterized in that: The temperature control tube is located between the upper and lower adjacent layers of the stirring blades.

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