A high-efficiency waste oil processing device

Abstract

The utility model discloses a kind of waste oil high-efficiency processing device, involve waste oil processing technical field, including: washing pulp machine, centrifuge, oil tank and high-temperature water tank;The utility model uses, high-temperature water can be preheated to oil before heating tank, improve the temperature of waste oil, reduce subsequent heating tank and mix oil-water mixture to the time of required temperature, improve heating efficiency, make oil preheating temperature more uniform, also improve oil flowability;And high-temperature water can also make waste oil residue surface attachment oil rate of oil reduce, make washing pulp machine and impurity removal machine discharge impurity oil content extremely low, make residue oil content reduce to 0.5% below, improve oil recovery efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waste oil treatment technology, specifically a waste oil high-efficiency treatment device. Background Technology

[0002] Waste oils have a complex composition, high impurity content, and low freezing point.

[0003] Waste cooking oil typically contains various impurities, which may originate from food scraps, food particles from the cooking process, seasoning residues, and dust and microorganisms introduced during storage and use. Due to these impurities, waste cooking oil requires pre-treatment steps such as filtration, sedimentation, and dehydration through heating. Existing waste cooking oil recycling systems usually filter the oil directly onto a filter screen, allowing impurities to pass through. However, this method results in some waste oil adhering to the surface of the impurities and failing to pass through the filter, leading to a high oil content in the impurities. Another method uses steam preheating to reduce oil adhesion to the impurities, but this requires heating for over 30 minutes and is less efficient.

[0004] Therefore, a high-efficiency waste oil treatment device is needed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency waste oil treatment device includes: a washing machine, a centrifuge, an oil tank, and a high-temperature water tank; The inlet of the high-temperature water tank is connected to the outlet of the centrifuge via a first pipeline, the outlet of the high-temperature water tank is connected to the inlet of the washing machine via a second pipeline, and the oil tank is connected to the oil outlet of the centrifuge via a third pipeline. The washing machine is equipped with a liquid discharge port and a slag discharge port. The washing machine is equipped with a filter assembly, which is used to filter the mixture inside the washing machine. The filtered oil-water mixture is discharged from the liquid discharge port, and the filtered impurities are discharged from the slag discharge port. The centrifuge is used to centrifuge the filtered oil-water mixture.

[0007] The liquid outlet and the slag outlet are located at the bottom of the washing machine.

[0008] All drainage outlets are equipped with automatic drainage valves.

[0009] An automatic slag discharge valve is installed at the slag discharge port.

[0010] The washing machine is equipped with a stirring rotor.

[0011] It also includes a filtration unit for removing impurities from the filtered oil-water mixture.

[0012] It also includes a suction pump, the inlet of which is connected to the outlet of the washing machine via a fourth pipeline, and the outlet of which is connected to the inlet of the impurity removal machine via a fifth pipeline.

[0013] It also includes a heating tank, the inlet of which is connected to the outlet of the oil-water mixture of the impurity remover via a sixth pipe, and the outlet of the heating tank is connected to the inlet of the centrifuge via a seventh pipe.

[0014] The heating tank is equipped with a steam port, which is connected to an external steam source.

[0015] A reflux pump is installed on the first pipeline.

[0016] The above-described structure of this utility model can achieve the following beneficial effects: Waste oil is directly poured into the washing machine chamber. After unloading, the return pump is turned on to pump high-temperature water from the high-temperature water tank into the washing machine chamber. The mixed oil and water mixture is filtered through the internal filter components and finally separated into oil and high-temperature wastewater by a three-phase centrifuge. The separated oil is temporarily stored in the oil tank; part of the high-temperature wastewater is returned to the high-temperature water tank to continue to preheat the waste oil, and the remaining high-temperature wastewater is discharged after treatment to meet standards. By mixing high-temperature water and waste oil, the oil temperature is increased, which not only increases the fluidity of the oil, but also washes the surface of the residue. After washing, the amount of oil adhering to the surface of the residue is greatly reduced, which further improves the treatment efficiency of waste oil. High-temperature water can preheat the grease before the heating tank, increasing the temperature of the waste grease and reducing the time required for the subsequent heating tank to raise the oil-water mixture to the required temperature, thus improving heating efficiency, making the grease preheating temperature more uniform, and improving the grease fluidity. In addition, high-temperature water can also reduce the grease content adhering to the surface of waste grease residue, resulting in extremely low oil content in the impurities discharged from the washing machine and the cleaning machine, reducing the oil content of the residue to below 0.5%, and improving the grease recovery efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this embodiment. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0020] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0021] refer to Figure 1 The device shown is a high-efficiency waste oil treatment device, comprising: a washing machine, a centrifuge (preferably a three-phase centrifuge), an oil tank, and a high-temperature water tank; The inlet of the high-temperature water tank is connected to the outlet of the centrifuge through the first pipeline (the first pipeline is equipped with a reflux pump for transporting high-temperature water), the outlet of the high-temperature water tank is connected to the inlet of the washing machine through the second pipeline, and the oil tank is connected to the oil outlet of the centrifuge through the third pipeline. The washing machine is equipped with a liquid discharge port and a slag discharge port. The washing machine is equipped with a filter assembly, which is used to filter the mixture inside the washing machine. The filtered oil-water mixture is discharged from the liquid discharge port, and the filtered impurities are discharged from the slag discharge port. Centrifuges are used to centrifuge filtered oil-water mixtures.

[0022] Based on the above structure, waste oil is directly poured into the washing machine chamber. After unloading, the return pump is turned on to transport high-temperature water from the high-temperature water tank into the washing machine chamber (in this embodiment, the initial high-temperature wastewater return flow rate is 30% of the waste oil volume, and the temperature of the waste oil increases by about 50% after return). The mixed oil-water mixture is filtered through the internal filter components and finally separated from the high-temperature wastewater by a three-phase centrifuge. The separated oil is temporarily stored in the oil tank; part of the high-temperature wastewater is returned to the high-temperature water tank to continue to be used for preheating the waste oil, and the remaining high-temperature wastewater is discharged after treatment to meet standards. By mixing high-temperature water and waste oil, the oil temperature is increased, which not only increases the fluidity of the oil, but also has a rinsing effect on the surface of the residue. After rinsing, the amount of oil adhering to the surface of the residue is greatly reduced, which further improves the treatment efficiency of waste oil.

[0023] Further optimization involves placing the liquid discharge port and slag discharge port at the bottom of the washing machine, with an automatic liquid discharge valve at the liquid discharge port and an automatic slag discharge valve at the slag discharge port. The automatic liquid discharge valve and automatic slag discharge valve facilitate automatic opening and closing of the liquid discharge port and slag discharge port, enabling automated control.

[0024] A further optimization is that the washing machine is equipped with a stirring rotor. By setting up the stirring rotor, after heating the high-temperature water and waste oil, the stirring rotor is turned on, and the high-speed rotation of the stirring rotor makes the waste water and waste oil mix evenly.

[0025] This application also includes a grease remover, a suction pump, and a heating tank. The grease remover is used to remove impurities from the filtered oil-water mixture. The inlet of the suction pump is connected to the outlet of the washing machine via a fourth pipeline, and the outlet of the suction pump is connected to the inlet of the grease remover via a fifth pipeline. The inlet of the heating tank is connected to the outlet of the oil-water mixture of the grease remover via a sixth pipeline, and the outlet of the heating tank is connected to the inlet of the centrifuge via a seventh pipeline. The heating tank is equipped with a steam port, which is connected to an external steam source. Steam enters the heating tank from the steam port. The oil-water mixture drawn from the washing machine is directly transported to the grease remover for further removal of fine particulate impurities. After removing impurities, the oil-water mixture is directly mixed with steam in the heating tank, which heats the oil-water mixture to 80°C. Finally, it enters a three-phase centrifuge to separate the grease and high-temperature wastewater.

[0026] In use, waste oil is directly poured into the washing machine chamber. After unloading, the return pump is turned on to pump high-temperature water from the high-temperature water tank into the washing machine chamber. The mixed oil and water is filtered through the internal filter assembly, and then the automatic drain valve is opened to pump the flowing oil and water mixture out from the bottom. High-temperature water is then added back into the washing machine chamber, and the above operation is repeated two to three times. Finally, the automatic slag discharge valve is opened to discharge any remaining residue.

[0027] High-temperature water can preheat the grease before heating the tank (in actual use, the preheating time is shortened from 30 minutes to 10 minutes, reducing labor intensity), increasing the temperature of waste grease, reducing the time required for the subsequent heating tank to raise the oil-water mixture to the required temperature, improving heating efficiency, making the grease preheating temperature more uniform, and also improving grease fluidity; in addition, high-temperature water can also reduce the grease content adhering to the surface of waste grease residue, making the oil content of impurities discharged from the washing machine and impurity removal machine extremely low, reducing the oil content of residue to below 0.5%, and improving grease recovery efficiency.

[0028] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A high-efficiency waste oil treatment device, characterized in that, include: Washing machines, centrifuges, oil tanks, and high-temperature water tanks; The inlet of the high-temperature water tank is connected to the outlet of the centrifuge via a first pipeline, the outlet of the high-temperature water tank is connected to the inlet of the washing machine via a second pipeline, and the oil tank is connected to the oil outlet of the centrifuge via a third pipeline. The washing machine is equipped with a liquid discharge port and a slag discharge port. The washing machine is equipped with a filter assembly, which is used to filter the mixture inside the washing machine. The filtered oil-water mixture is discharged from the liquid discharge port, and the filtered impurities are discharged from the slag discharge port. The centrifuge is used to centrifuge the filtered oil-water mixture.

2. The waste oil high-efficiency treatment device according to claim 1, characterized in that: The liquid outlet and the slag outlet are located at the bottom of the washing machine.

3. The waste oil high-efficiency treatment device according to claim 2, characterized in that: All drainage outlets are equipped with automatic drainage valves.

4. The waste oil high-efficiency treatment device according to claim 3, characterized in that: An automatic slag discharge valve is installed at the slag discharge port.

5. The waste oil high-efficiency treatment device according to claim 2, characterized in that: The washing machine is equipped with a stirring rotor.

6. The waste oil high-efficiency treatment device according to claim 1, characterized in that: It also includes a filtration unit for removing impurities from the filtered oil-water mixture.

7. The waste oil high-efficiency treatment device according to claim 6, characterized in that: It also includes a suction pump, the inlet of which is connected to the outlet of the washing machine via a fourth pipeline, and the outlet of which is connected to the inlet of the impurity removal machine via a fifth pipeline.

8. The waste oil high-efficiency treatment device according to claim 6, characterized in that: It also includes a heating tank, the inlet of which is connected to the outlet of the oil-water mixture of the impurity remover via a sixth pipe, and the outlet of the heating tank is connected to the inlet of the centrifuge via a seventh pipe.

9. The waste oil high-efficiency treatment device according to claim 8, characterized in that: The heating tank is equipped with a steam port, which is connected to an external steam source.

10. The waste oil high-efficiency treatment device according to claim 1, characterized in that: A reflux pump is installed on the first pipeline.

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