Waste mineral oil impurity removal device

Abstract

The utility model discloses a waste mineral oil impurity removal device and relates to the technical field of waste mineral oil treatment. Heating assemblies arranged up and down are installed in the vertical pipe, each heating assembly comprises a heating shell, each heating shell is of a sheet-shaped structure, one part of each heating shell transversely extends into the vertical pipe, the other part of each heating shell is reserved outside the vertical pipe, each heating shell is of a hollow structure, and an electric heating rod is installed in a hollow inner cavity, outside the vertical pipe, of each heating shell. The surface of the inner cavity of the heating shell and the surface of the electrical bar are filled with capillary materials. The heating device has the beneficial effects that the heating component is arranged in the liquid inlet pipe, the heating component transmits heat by using the heat pipe system, the heat exchange efficiency of the heat pipe system is high, heat generated by the electrical bar is instantly evaporated by the working liquid, the evaporated working liquid is partially condensed in the heating shell in the vertical pipe to release heat, and the working liquid is heated while the waste mineral oil is heated. Heat is transmitted between the electric heating rod and the waste mineral oil through the heat pipe, the service life of the electric heating rod is prolonged, and meanwhile the service life of the sieve plate can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of waste mineral oil treatment technology, and in particular to a waste mineral oil impurity removal device. Background Technology

[0002] Existing oilfields, combined stations, and sludge treatment plants all generate small amounts of waste mineral oil. Solid particles and viscous waste mineral oil are difficult to process. Large particulate impurities in the waste oil are difficult to separate from the viscous waste mineral oil. The solid particles separated from the waste mineral oil still have viscous waste mineral oil adhering to their surfaces, resulting in incomplete separation. The current method of heating waste mineral oil by electric heating has the following drawbacks: the surface temperature of the heating rod is extremely high, and the local high temperature can easily carbonize the waste mineral oil locally and make it adhere to the surface of the heating rod, reducing the heating efficiency. In severe cases, the heating rod may become unusable. Utility Model Content

[0003] To address the problems of low heating efficiency and short lifespan of heating rods when heating waste mineral oil, this invention provides a waste mineral oil impurity removal device.

[0004] The technical solution provided by this utility model is: a waste mineral oil impurity removal device, including a base, a screen frame connected to the base by four compression springs, a vibrating motor and a screen plate installed on the screen frame, the vibration direction of the vibrating motor is 45° to the upper left of the screen frame, the number of screen plates is five, the five screen plates are overlapped together, the screen frame has a funnel at the bottom of the screen plate, the base has an oil storage tank at the bottom of the funnel, and an inlet pipe is fixedly connected to the base. The inlet pipe includes a horizontal pipe, the horizontal pipe is connected to a vertical pipe through an elbow, the vertical pipe is connected to a drop pipe through two elbows, and the drop pipe is located above the innermost screen plate.

[0005] Heating components arranged vertically are installed inside the vertical tube. The heating components include a heating shell, which is a sheet-like structure. Part of the heating shell extends laterally into the vertical tube, while part remains outside the vertical tube. The depth of the heating shell extending into the vertical tube exceeds the radius of the vertical tube. The heating shell is a hollow structure. A heating rod is installed in the hollow cavity of the heating shell outside the vertical tube. The inner surface of the heating shell and the surface of the heating rod are filled with capillary material. The inner cavity of the heating shell is filled with working fluid, and the inner cavity of the heating shell is under negative pressure.

[0006] Each heating shell extends into the vertical tube from both sides in a crisscross pattern.

[0007] The heating shell is located inside the vertical tube and has heat exchange fins welded on its upper and lower sides.

[0008] The drop tube is a conical tube with a smaller outlet at the bottom than at the top. A support is welded to the top of the drop tube, and several steel rings are fixedly connected to the bottom of the support. The cross-section of the steel rings is circular. The topmost steel ring is welded to the support, and several interlocking steel rings are located below the topmost steel ring.

[0009] The beneficial effects of this utility model are as follows: a heating component is set in the liquid inlet pipe, and the heating component uses a heat pipe system to transfer heat. The heat pipe system has high heat exchange efficiency. The heat generated by the electric heating rod is instantly evaporated by the working liquid. The evaporated working liquid condenses and releases heat in the heating shell part in the vertical pipe. While heating the waste mineral oil, the electric heating rod and the waste mineral oil transfer heat through the heat pipe, which improves the service life of the electric heating rod and extends the service life of the sieve plate. Attached Figure Description

[0010] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Appendix Figure 2 It is attached Figure 1 Enlarged view of point A.

[0012] In the diagram, 1-base, 2-sieve frame, 3-vibration motor, 4-sieve plate, 5-oil storage tank, 6-funnel, 7-liquid inlet pipe, 701-horizontal pipe, 702-vertical pipe, 730-falling pipe, 8-heating component, 801-heating shell, 802-heating rod, 803-capillary material, 804-heat exchange plate, 9-steel ring, 10-support. Detailed Implementation

[0013] like Figures 1-2 As shown, a waste mineral oil impurity removal device includes a base 1. A screen frame 2 is connected to the base 1 by four compression springs. A vibrating motor 3 and screen plates 4 are installed on the screen frame 2. The vibration direction of the vibrating motor 3 is 45° to the upper left of the screen frame 2. There are five screen plates 4, which are overlapped together. A funnel 6 is provided at the lower part of the screen plate 4 in the screen frame 2. An oil storage tank 5 is provided at the lower part of the funnel 6 in the base 1. An inlet pipe 7 is fixedly connected to the base 1. The inlet pipe 7 includes a horizontal pipe 701. The horizontal pipe 701 is connected to a vertical pipe 702 through an elbow. The vertical pipe 702 is connected to a drop pipe 703 through two elbows. The drop pipe 703 is located above the innermost screen plate 4. The above is the conventional structure of a vibrating screen.

[0014] Heating components 8 are arranged vertically inside the vertical tube 702. Each heating component 8 includes a heating shell 801, which is a sheet-like structure. A portion of the heating shell 801 extends laterally into the vertical tube 702, while a portion remains outside. The depth of the heating shell 801 extending into the vertical tube 702 exceeds the radius of the vertical tube 702. The heating shell 801 is hollow. An electric heating rod 802 is installed within the hollow cavity of the heating shell 801 outside the vertical tube 702. The inner surface of the heating shell 801 and the surface of the electric heating rod 802 are filled with capillary material 803. The inner cavity is filled with working fluid, and the inner cavity of the heating shell 801 is under negative pressure. Thus, the heating component 8 forms a heat pipe system. The heating component 8 is set in the liquid inlet pipe 7. The heating component 8 uses the heat pipe system to transfer heat. The heat pipe system has high heat exchange efficiency. The heat generated by the heating rod 802 is instantly evaporated by the working fluid. The evaporated working fluid is partially condensed in the heating shell 801 in the vertical pipe 702, releasing heat. While heating the waste mineral oil, the heating rod 802 and the waste mineral oil transfer heat through the heat pipe. The heating rod 802 and the waste mineral oil do not come into direct contact, which improves the service life of the heating rod 802.

[0015] Each heating shell 801 extends into the vertical tube 702 from both sides, which can improve heat exchange efficiency and increase the residence time of waste mineral oil in the vertical tube 702.

[0016] The heating shell 801 is located inside the vertical tube 702 and has heat exchange plates 804 welded on its upper and lower sides to further improve heat exchange efficiency.

[0017] The drop pipe 703 is a conical pipe. The lower outlet of the drop pipe 703 is smaller than the upper inlet. A bracket 10 is welded to the upper part of the drop pipe 703. Several steel rings 9 are fixedly connected to the lower part of the bracket 10. The cross-section of the steel rings 9 is circular. The uppermost steel ring 9 is welded to the bracket 10. Below the uppermost steel ring 9, there are several interlocking steel rings 9. During the descent of the waste mineral oil fluid, the surface of the steel rings 9 forms many tension interfaces with the waste mineral oil, which slows down the descent velocity of the waste mineral oil and prevents the waste mineral oil from directly impacting the screen plate 4, causing splashing and damage to the screen plate 4.

Claims

1. A waste mineral oil impurity removal device comprising a base (1), characterized in that: The base (1) is connected with the screen frame (2) through four compression springs, the screen frame (2) is provided with the vibration motor (3) and the screen plate (4), the vibration direction of the vibration motor (3) is 45° to the upper left of the screen frame (2), the number of the screen plate (4) is five, the five screen plates (4) are overlapped with each other, the screen frame (2) is provided with the hopper (6) below the screen plate (4), the base (1) is provided with the oil storage tank (5) below the hopper (6), the base (1) is fixedly connected with the liquid inlet pipe (7), the liquid inlet pipe (7) comprises the horizontal pipe (701), the horizontal pipe (701) is connected with the vertical pipe (702) through a bend, the vertical pipe (702) is connected with the falling pipe (703) through two bends, and the falling pipe (703) is located above the innermost screen plate (4); The vertical pipe (702) is provided with the heating assembly (8) arranged in the up-down direction, the heating assembly (8) comprises the heating shell (801), the heating shell (801) is in a sheet structure, one part of the heating shell (801) extends into the vertical pipe (702) in the transverse direction, and the other part of the heating shell (801) is outside the vertical pipe (702); the depth of the heating shell (801) extending into the vertical pipe (702) exceeds the radius of the vertical pipe (702), the heating shell (801) is in a hollow structure, the electric heating rod (802) is arranged in the hollow cavity of the heating shell (801) outside the vertical pipe (702), the inner cavity surface of the heating shell (801) and the surface of the electric heating rod (802) are filled with the capillary material (803), the inner cavity of the heating shell (801) is filled with working liquid, and the inner cavity of the heating shell (801) is in a negative pressure state.

2. A waste mineral oil impurity removal device according to claim 1, characterized in that: Each heating shell (801) extends into the vertical pipe (702) from both sides.

3. The waste mineral oil impurity removal device according to claim 1, characterized in that: The upper and lower surfaces of the heating shell (801) in the vertical pipe (702) are welded with the heat exchange fins (804).

4. The waste mineral oil impurity removal device according to claim 1, characterized in that: The falling pipe (703) is a conical pipe, the outlet of the lower part of the falling pipe (703) is smaller than the inlet of the upper part, the upper part of the falling pipe (703) is welded with the support (10), the lower part of the support (10) is fixedly connected with a plurality of steel rings (9), the cross section of the steel ring (9) is circular, the uppermost steel ring (9) is welded on the support (10), and a plurality of steel rings (9) are arranged below the uppermost steel ring (9) and are sleeved with each other.

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