Waste oil heating and purifying device

Abstract

The utility model relates to the technical field of abandoned oil heating and purifying, and particularly discloses an abandoned oil heating and purifying device which comprises a pretreatment box and a pre-filtering box, the outer wall of the pretreatment box is fixedly connected with two supporting plates which are distributed left and right, and a coagulant box is installed on the upper end face of the supporting plate located at the right end. A decolorizing agent box and a deodorizing agent box are installed on the upper end face of the supporting plate located at the left end, an annular drainage cavity is formed in the pretreatment box, the outer walls of the coagulant box, the decolorizing agent box and the deodorizing agent box all communicate with drainage pipes, and the other ends of the three drainage pipes all penetrate through the pretreatment box and communicate with the drainage cavity; a plurality of uniformly distributed spray heads are mounted at the lower end of the drainage cavity, and a first motor is mounted on the upper end surface of the pretreatment box, so that the purposes of uniformly spraying a deodorizing agent, a decolorizing agent and a flocculating agent into the pretreatment box, preliminarily filtering the abandoned oil through a centrifugal filtering barrel, improving the mixing effect and facilitating subsequent processing are achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste oil heating and purification technology, specifically a waste oil heating and purification device. Background Technology

[0002] A waste oil heating and purification device is used to treat waste oil, obtaining high-quality oil through heating and purification processes. This device is widely used in the recycling and reuse of waste oil, such as kitchen waste oil and transformer oil. Existing waste oil heating and purification devices typically require pretreatment of the waste oil before heating. This pretreatment involves mixing deodorizing agents, decolorizing agents, flocculants, or alkaline solutions with the waste oil to separate the water and oil, and then decolorizing and deodorizing it to facilitate subsequent processing. However, in practice, the deodorizing agents, decolorizing agents, flocculants, or alkaline solutions are usually directly placed into a mixing tank and stirred, resulting in insufficient mixing and affecting subsequent processing. Therefore, a waste oil heating and purification device is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a waste oil heating and purification device, which facilitates the uniform spraying of deodorizing agent, decolorizing agent and flocculant into the interior of the pretreatment tank, and the waste oil is initially filtered through a centrifugal filter barrel, thereby improving the mixing effect and facilitating subsequent processing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste oil heating and purification device, comprising a pretreatment box and a prefiltration box. Two support plates, distributed left and right, are fixedly connected to the outer wall of the pretreatment box. A coagulant box is installed on the upper surface of the support plate on the right end, and a decolorizing agent box and a deodorizing agent box are installed on the upper surface of the support plate on the left end. An annular drainage cavity is provided inside the pretreatment box. Drainage pipes are connected to the outer walls of the coagulant box, decolorizing agent box, and deodorizing agent box. The other ends of the three drainage pipes pass through the pretreatment box and communicate with the drainage cavity. Multiple evenly distributed nozzles are installed at the lower end of the drainage cavity. A first motor is installed on the upper surface of the pretreatment box. The output end of the first motor passes through the pretreatment box and is fixedly connected to a stirring shaft located inside the pretreatment box. Delivery pumps are installed on the outer walls of the three drainage pipes.

[0005] The bottom of the pretreatment box and the top of the pre-filtration box are connected by a discharge pipe equipped with a shut-off valve. A second motor is installed at the bottom of the pre-filtration box. The output end of the second motor passes through the pretreatment box and is fixedly connected to a separation barrel with an opening at the top. Multiple evenly distributed mesh holes are opened through the outer wall and bottom of the separation barrel.

[0006] To circulate and heat the inside of the distillation tank, as a preferred embodiment of the waste oil heating and purification device of this utility model, a horizontal plate is fixedly connected to the right end of the pre-filtration tank, and the distillation tank is fixedly connected through the upper end of the horizontal plate. A steam coil is installed between the inner and outer walls of the distillation tank, and a steam generator is provided on the right end of the distillation tank. The inlet and outlet of the steam coil are respectively connected to the outlet and inlet of the steam generator. The pre-filtration tank and the distillation tank are connected by a connecting pipe, and a liquid pump is installed on the outer wall of the connecting pipe.

[0007] In order to cool down the inside of the condenser, as a preferred embodiment of the waste oil heating and purification device of this utility model, the right end of the distillation tank is connected to the condenser via a connecting pipe, a cold water coil is installed between the outer wall and the inner wall of the condenser, a chiller is provided at the right end of the condenser, and the inlet and outlet of the condenser are respectively connected to the outlet and inlet of the chiller.

[0008] In order to monitor the flow rate of the liquid, as a preferred embodiment of the waste oil heating and purification device of this utility model, flow meters are installed on the outer walls of the three drainage pipes.

[0009] In order to remove impurities after purification and collect the purified oil, as a preferred embodiment of the waste oil heating and purification device of this utility model, the lower ends of the distillation tank and the condensation tank are both connected to discharge pipes.

[0010] In order to control the operation of each component, as a preferred embodiment of the waste oil heating and purification device of this utility model, a controller is installed at the front end of the pretreatment box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of a second motor, a stirring shaft, a delivery pump, a diversion pipe, a nozzle, and a stirring shaft, sequentially pumps the liquids from the decolorizing agent tank, the coagulant tank, and the deodorizing agent tank into the pretreatment tank. The liquids are then sprayed to fully mix with the waste oil. After mixing, the shut-off valve on the outer wall of the discharge pipe is activated to allow the mixed waste oil to fall into the separation tank inside the pre-filtration tank. The second motor is then activated to drive the separation tank to rotate, initially filtering the impurities inside the waste oil. This facilitates the even spraying of deodorizing agent, decolorizing agent, and flocculant inside the pretreatment tank, and the initial filtration of the waste oil by the centrifugal filter tank, improving the mixing effect and facilitating subsequent processing. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of the present invention;

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0014] Figure 3This is a partial structural diagram of the present invention. In the diagram: 1. Pre-filtration box; 2. Pretreatment box; 3. Decolorizing agent box; 4. Drainage pipe; 5. Deodorizing agent box; 6. Coagulant box; 7. Transfer pump; 8. Flow meter; 9. First motor; 10. Drainage chamber; 11. Nozzle; 12. Stirring shaft; 13. Discharge pipe; 14. Second motor; 15. Separation tank; 16. Distillation tank; 17. Liquid pump; 18. Cold water coil; 19. Condensation box; 20. Steam generator; 21. Chiller; 22. Horizontal plate; 23. Steam coil. Detailed Implementation

[0015] Please see Figures 1 to 3 A waste oil heating and purification device includes a pretreatment box 2 and a pre-filtration box 1. The outer wall of the pretreatment box 2 is fixedly connected to two left and right distributed support plates. A coagulant box 6 is installed on the upper surface of the right support plate, and a decolorizing agent box 3 and a deodorizing agent box 5 are installed on the upper surface of the left support plate. An annular drainage cavity 10 is provided inside the pretreatment box 2. The outer walls of the coagulant box 6, the decolorizing agent box 3, and the deodorizing agent box 5 are all connected to drainage pipes 4. The other ends of the multiple drainage pipes 4 pass through the pretreatment box 2 and are connected to the drainage cavity 10. Multiple evenly distributed nozzles 11 are installed at the lower end of the drainage cavity 10. A first motor 9 is installed on the upper surface of the pretreatment box 2. The output end of the first motor 9 passes through the pretreatment box 2 and is fixedly connected to a stirring shaft 12 located inside the pretreatment box 2. A delivery pump 7 is installed on the outer wall of each of the three drainage pipes 4.

[0016] The bottom of the pretreatment box 2 is connected to the top of the pre-filter box 1 by a discharge pipe 13 equipped with a shut-off valve. The bottom of the pre-filter box 1 is equipped with a second motor 14. The output end of the second motor 14 passes through the pretreatment box 2 and is fixedly connected to a separation barrel 15 with an opening at the top. The outer wall and bottom of the separation barrel 15 are both provided with multiple evenly distributed mesh holes.

[0017] In this embodiment: During use, waste oil is placed inside the pretreatment tank 2, the first motor 9 is started to drive the stirring shaft 12 to rotate, and at the same time the delivery pump 7 is started to pump the coagulant inside the coagulant tank 6 into the pretreatment tank 2 as needed through the connected guide pipe 4 and nozzle 11. The coagulant and waste oil are fully mixed with the stirring shaft 12. Then, the deodorant inside the deodorant tank 5 is pumped into the pretreatment tank 2 through the corresponding delivery pump 7 to mix it fully. Next, the decolorizing agent inside the decolorizing agent tank 3 is delivered into the pretreatment tank 2 through the corresponding delivery pump 7 to mix it fully. After mixing, the shut-off valve on the outer wall of the discharge pipe 13 is started to let the mixed waste oil fall into the separation tank 15 inside the pre-filtration tank 1, and the second motor 14 is started to drive the separation tank 15 to rotate, initially filtering the impurities inside the waste oil to facilitate subsequent heating and purification.

[0018] As a technical optimization of this utility model, a horizontal plate 22 is fixedly connected to the right end of the pre-filtration box 1. A distillation box 16 is fixedly connected through the upper end of the horizontal plate 22. A steam coil 23 is installed between the inner wall and the outer wall of the distillation box 16. A steam generator 20 is provided on the right end of the distillation box 16. The inlet and outlet of the steam coil 23 are respectively connected to the outlet and inlet of the steam generator 20. The pre-filtration box 1 and the distillation box 16 are connected by a connecting pipe, and a liquid pump 17 is installed on the outer wall of the connecting pipe.

[0019] In this embodiment: Steam is introduced into the steam coil 23 by the vacuum pump of the steam generator 20 to circulate and heat the inside of the distillation tank 16, so that the oil inside is vaporized and separated from solid impurities.

[0020] As a technical optimization of this utility model, the right end of the distillation tank 16 is connected to the condenser 19 through a connecting pipe. A cold water coil 18 is installed between the outer wall and the inner wall of the condenser 19. A chiller 21 is provided at the right end of the condenser 19. The inlet and outlet of the condenser 19 are respectively connected to the outlet and inlet of the chiller 21.

[0021] In this embodiment: the chiller 21 can circulate chilled water to the inside of the chilled water coil 18 through the water pump of the chiller 21 to cool down the inside of the condenser 19 and liquefy the vaporized grease.

[0022] As a technical optimization of this utility model, flow meters 8 are installed on the outer walls of multiple drainage tubes 4.

[0023] In this embodiment, the flow rate of the liquid can be monitored by the flow meter 8.

[0024] As a technical optimization of this utility model, the lower ends of both the distillation tank 16 and the condensation tank 19 are connected to discharge pipes.

[0025] In this embodiment: the purified impurities can be discharged through the discharge pipe at the lower end of the distillation tank 16, and the purified oil can be collected through the discharge pipe at the lower end of the condensation tank 19.

[0026] As a technical optimization of this utility model, a controller is installed at the front end of the pretreatment box 2.

[0027] In this embodiment, the controller is electrically connected to the flow meter 8, the first motor 9, the second motor 14, the liquid pump 17, the chiller 21, and the steam generator 20, and the controller can control the operation of each component.

[0028] Working principle: When in use, waste oil is placed inside the pretreatment tank 2. The controller starts the first motor 9 to drive the stirring shaft 12 to rotate. At the same time, the delivery pump 7 starts to pump the coagulant inside the coagulant tank 6 into the pretreatment tank 2 as needed through the connected drainage pipe 4 and nozzle 11. The coagulant and waste oil are fully mixed by the stirring shaft 12. Then, the deodorant inside the deodorant tank 5 is pumped into the pretreatment tank 2 through the corresponding delivery pump 7 to mix it fully. Next, the decolorizing agent inside the decolorizing agent tank 3 is delivered into the pretreatment tank 2 through the corresponding delivery pump 7 to mix it fully. After mixing, the shut-off valve on the outer wall of the discharge pipe 13 is activated to let the mixed waste oil fall into the separation tank 15 inside the pre-filtration tank 1. The second motor 14 is started to drive the separation tank 15 to rotate, and the impurities inside the waste oil are initially filtered.

[0029] Next, the grease inside the pre-filtering box 1 is pumped into the distillation box 16 through the liquid pump 17 on the outer wall of the connecting pipe. Steam is introduced into the steam coil 23 by the vacuum pump of the steam generator 20 to circulate and heat the inside of the distillation box 16, causing the grease inside to vaporize and separate from solid impurities. The vaporized grease flows into the condenser box 19 through the connecting pipe. The water pump of the chiller 21 circulates and delivers cold water to the inside of the chiller coil 18 to cool the inside of the condenser box 19, liquefying the vaporized grease. The purified grease is then discharged through the condenser box 19.

Claims

1. An oil rejection heating purification device, comprising a pretreatment tank (2) and a prefilter tank (1), characterized in that: The outer wall of the pretreatment box (2) is fixedly connected with two left and right distributed support plates, the upper end face of the support plate at the right end is provided with a condensing agent tank (6), the upper end face of the support plate at the left end is provided with a decoloring agent tank (3) and an odor removing agent tank (5), the inside of the pretreatment box (2) is provided with an annular drainage cavity (10), the outer wall of the condensing agent tank (6), the decoloring agent tank (3) and the odor removing agent tank (5) is communicated with a drainage pipe (4), the other end of the three drainage pipes (4) penetrates the pretreatment box (2) and communicates with the drainage cavity (10), the lower end of the drainage cavity (10) is provided with a plurality of uniformly distributed spray heads (11), the upper end face of the pretreatment box (2) is provided with a first motor (9), the output end of the first motor (9) penetrates the pretreatment box (2) and is fixedly connected with a stirring shaft (12) located in the inside of the pretreatment box (2), the outer wall of the three drainage pipes (4) is provided with a delivery pump (7). The bottom of the pretreatment box (2) and the upper end of the pre-filtering box (1) are communicated with a discharge pipe (13) provided with a stop valve, the lower end of the pre-filtering box (1) is provided with a second motor (14), the output end of the second motor (14) penetrates the pretreatment box (2) and is fixedly connected with an open-top separation barrel (15), the outer wall and the bottom end of the separation barrel (15) are provided with a plurality of uniformly distributed mesh holes.

2. The oil rejection heating purification device according to claim 1, characterized in that: The right end of the pre-filtering box (1) is fixedly connected with a horizontal plate (22), the upper end face of the horizontal plate (22) penetrates and is fixedly connected with a distillation tank (16), the inner wall and the outer wall of the distillation tank (16) are provided with a steam coil (23), the right end face of the distillation tank (16) is provided with a steam generator (20), the inlet and the outlet of the steam coil (23) are respectively communicated with the outlet and the inlet of the steam generator (20), the pre-filtering box (1) and the distillation tank (16) are communicated through a connecting pipe, and the outer wall of the connecting pipe is provided with a liquid pumping pump (17).

3. A heating and purifying device for oil rejection according to claim 2, characterized in that: The right end of the distillation tank (16) is communicated with a condensation tank (19) through a connecting pipe, the outer wall and the inner wall of the condensation tank (19) are provided with a cold water coil (18), and the right end of the condensation tank (19) is provided with a cold water machine (21), the inlet and the outlet of the condensation tank (19) are respectively communicated with the outlet and the inlet of the cold water machine (21).

4. The oil rejection heating purification device according to claim 1, characterized in that: The outer wall of the three drainage pipes (4) is provided with a flow meter (8).

5. A heating and purifying device for oil rejection according to claim 3, characterized in that: The lower end of the distillation tank (16) and the condensation tank (19) are communicated with a discharge pipe.

6. The oil rejection heating purification device according to claim 1, characterized in that: The front end of the pretreatment box (2) is provided with a controller.

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