Multi-stage treatment device of waste oil recycling and purifying treatment system

Abstract

The utility model relates to the technical field of oil product purification treatment, in particular to a multistage treatment device of a waste oil recycling purification treatment system, which solves the problem that in the prior art, various purification treatment processes are arranged in the same equipment, so that the purification treatment effect is influenced. The outlet end of the degumming treatment tank is connected with the inlet end of a decoloring treatment tank through a pipeline, the degumming treatment tank and the decoloring treatment tank are respectively provided with a stirrer and a heating device, the degumming treatment tank is connected with a first reaction raw material tank, and the decoloring treatment tank is connected with a second reaction raw material tank. The waste oil purification device is used for separating and purifying waste oil from mechanical equipment, automobiles, ships and the like in the using process and then converting the waste oil into available renewable resources, and the waste oil purification treatment with a better effect is realized through the graded and staged purification treatment equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of oil purification treatment, in particular to a multi-stage treatment device for a waste oil recycling and purification treatment system. Background Art

[0002] Waste oil and miscellaneous oil (such as used engine oil) mainly come from the use process of mechanical equipment, automobiles, ships, etc. These waste oils usually contain various impurities, degradation products of additives, and substances that may be harmful to the human body and the environment. Therefore, it is particularly important to effectively recycle and purify waste oil so that it can be reused, which can not only protect the environment but also enable the recycling and regeneration of resources.

[0003] The waste oil recycling and purification treatment system usually includes: (1) a purification treatment system: deeply purifying waste oil by physical, chemical, or biological methods. These methods include filtration, centrifugation, distillation, adsorption, acid-base neutralization, oxidation-reduction, biodegradation, etc. (2) a post-treatment system: further treating the purified waste oil, such as dehydration, decolorization, deodorization, etc., to improve its quality and reuse value.

[0004] In the prior art, to save equipment costs, the physical and chemical deep treatment parts of the purification treatment system are usually placed in the same equipment. This not only makes it inconvenient to separately control parameters such as pressure and temperature in various treatment stages, but also the presence of multiple raw material components in the same equipment may affect each other, resulting in a reduction in the purification treatment effect. Summary of the Utility Model

[0005] To solve the problems existing in the prior art, the utility model provides a multi-stage treatment device for a waste oil recycling and purification treatment system, which conducts purification treatment in stages and effectively guarantees the purification treatment effect.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A multi-stage treatment device for a waste oil recycling and purification treatment system includes a degumming treatment tank. The outlet end of the degumming treatment tank is connected to the inlet end of a decolorization treatment tank through a pipeline. Stirrers and heating devices are respectively installed on both the degumming treatment tank and the decolorization treatment tank. The degumming treatment tank is connected to a first reaction raw material tank, and the decolorization treatment tank is connected to a second reaction raw material tank.

[0008] Furthermore, the degumming treatment tank is connected to a third gas absorption tank. A fourth one-way valve is connected between the third gas absorption tank and the degumming treatment tank. The third gas absorption tank is connected to a vacuum pump through a pipeline.

[0009] Further, the bottom of the degumming treatment tank is connected to a waste material pool through a slag discharge pipe, and the inlet end of the degumming treatment tank is also connected to the outlet end of a raw material tank through a pipeline.

[0010] Further, the top of the decolorization treatment tank is connected to the inlet end of a second condenser through a pipeline, and the outlet end of the second condenser is connected to the inlet end of a second storage tank through a pipeline.

[0011] Further, the outlet end of the second storage tank is connected to the inlet end of a fourth gas absorption tank through a fifth one-way valve, and the fourth gas absorption tank is connected to a vacuum pump through a pipeline.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The multi-stage treatment device of the present utility model can perform multi-stage and targeted treatment on waste oil, and can obtain sufficient treatment processes such as reaction, adsorption, precipitation, etc. Compared with the existing technology that performs multiple treatment processes in the same treatment equipment, the present utility model can separately control parameters such as the temperature and pressure of the equipment, avoid the mutual influence of raw materials in the same equipment, greatly improve the treatment effect of waste oil, greatly improve the recycling and purification reuse rate of waste oil, have a better environmental protection effect, and significantly increase the renewable proportion of resources.

[0014] The device of the present utility model specifically includes treatment equipment such as degumming and decolorization, enabling waste oil to be added with raw materials such as degumming agents and decolorizing agents in multiple steps, and capable of gradually and effectively performing treatments such as degumming and decolorization respectively, further improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the process flow of the multi-stage treatment device of the present utility model;

[0016] Figure 2 is a schematic diagram of the process flow of the waste oil recycling and purification treatment system applied by the present utility model (rotated 90 degrees).

[0017] Reference Numerals:

[0018] 1 - Raw material tank, 2 - Separation device, 3 - Multi-stage treatment device, 4 - Circulation filtration device, 5 - Product tank, 6 - Vacuum pump, 7 - Circulation water pool;

[0019] 31 - Degumming treatment tank, 32 - Decolorization treatment tank, 33 - Oil pump, 34 - First reaction raw material tank, 35 - Third gas absorption tank, 36 - Fourth one-way valve, 37 - Waste material pool, 38 - Second condenser, 39 - Second storage tank, 310 - Fifth one-way valve, 311 - Fourth gas absorption tank, 312 - Second reaction raw material tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] The multi-stage treatment device of the waste oil recycling separation and purification treatment system of the present utility model is mainly used to separate and purify the waste oil during the use process of mechanical equipment, automobiles, ships, etc., and then convert it into reusable renewable resources. Through multi-stage and staged purification treatment equipment, efficient waste oil purification treatment can be finally achieved. Specifically, the implementation manner of the present utility model is as follows:

[0022] It should be noted that for the pipelines used in the device of the present utility model, according to the relevant pipeline connections of chemical equipment in the prior art, corresponding valves for opening and closing the pipelines can be set on the pipelines. Those skilled in the art can select and set the types of valves according to the types of fluid media, temperature, pressure and actual working conditions in combination with the prior art. In the present utility model, no specific description will be made on the valve settings on these pipelines, and this description also applies to the subsequent specific implementation manners.

[0023] Please refer to Figure 1 , when the waste oil is transported from the raw material tank 1 or the previous-stage treatment equipment to the degumming treatment tank 31 of the multi-stage treatment device 3 for degumming treatment, the reaction raw materials for degumming treatment are put into the degumming treatment tank 31 from the first reaction raw material tank 34. The reaction raw materials can select some degumming agents. For example, by using the strong oxidizing property of oxidants, the gum substances are oxidized and decomposed, or by using complexing agents to form stable complexes with metal ions in the gum substances, so as to separate them from the waste oil; after adding the raw materials required for degumming, it is heated to the temperature required for the degumming treatment reaction by a heating device. Preferably, an electromagnetic heating device can be set in the degumming reaction treatment tank, which is convenient for controlling the heating temperature and quickly reaching the temperature requirement. During the degumming treatment, the inside of the degumming treatment tank 31 is stirred by a stirrer to fully mix and degum the raw materials. The waste residue separated after degumming is discharged from the slag discharge port 44 at the bottom of the degumming treatment tank 31 to the waste material pool 37 for unified treatment, while the toxic, harmful and odorous gases volatilized during the degumming treatment process enter the third gas absorption tank 35 through the fourth one-way valve 36 at the top for absorption, and the third gas absorption tank 35 is connected to a vacuum pump 6 to discharge the harmless gas subsequently; a sampling port is also set on the degumming treatment tank 31 to sample and detect whether the treated waste oil meets the standards. After passing the detection, it is transported to the subsequent equipment;

[0024] The waste oil qualified after degumming treatment is transported from the degumming treatment tank 31 to the decolorization treatment tank 32 for decolorization treatment. The reaction raw materials for decolorization treatment are put into the decolorization treatment tank 32 from the second reaction raw material tank 312. The raw materials for decolorization treatment can select the following some implementation schemes according to needs:

[0025] Strong oxidants such as benzoyl peroxide and hydrogen peroxide: These substances have strong oxidizing properties and can oxidize and decompose the pigment molecules in waste oil, thus achieving the effect of decolorization;

[0026] Metal ion complexing agents: Metal ion complexing agents can combine with specific functional groups in pigment molecules to form stable complexes, thereby separating them from waste oil. This method is particularly effective for removing certain specific types of pigments;

[0027] Chemical adsorbents: Chemical adsorbents can achieve more efficient decolorization by reacting with pigment molecules. These chemical adsorbents may contain specific functional groups or active sites that can have strong interactions with pigment molecules;

[0028] In the decolorization treatment, it is heated to the temperature required for the degumming treatment reaction by a heating device. Similarly, the heating device can preferably be an electromagnetic heating device arranged in the decolorization reaction treatment tank, and the inside of the degumming treatment tank 31 is stirred by a stirrer to achieve sufficient mixing and contact; Some mixtures of water vapor and other gases will be volatilized during the decolorization reaction, and this part of the substance also needs to be further treated before being discharged. Therefore, the water is condensed by the second condenser 38 connected to the top of the decolorization treatment tank 32 and collected in the second storage tank 39 for later use, while other gases enter the fourth gas absorption tank 311 through the fifth one-way valve 310 for harmless absorption, and the remaining clean gas is discharged by the vacuum pump 6; The decolorization treatment tank 32 is also provided with the same sampling port as the degumming treatment tank 31, which is convenient for sampling and detecting the treated waste oil. After passing the detection, it enters the treatment of subsequent equipment.

[0029] Please refer to Figure 2 , which is one of the waste oil recycling and purification treatment systems applied to the present invention. The waste oil raw material can be first separated from some miscellaneous oil and impurities by the separation device 2, and then enter the multi-stage treatment system for degumming, decolorization and other treatments. After passing the qualified standard through the multi-stage treatment device 3, the waste oil enters the circulation filtration device 4 to remove the waste residue by circulation filtration. Finally, the qualified product oil after filtration is transported to the finished product tank 5 for storage. The vacuum pump 6 provides an internal vacuum environment for the operation of the system equipment and discharges the extracted gas into the circulation water tank 7 for absorption and discharge.

[0030] The above embodiments only represent the specific implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A multi-stage treatment device for waste oil recycling and purification system, characterized in that: It comprises a degumming treatment tank, the outlet end of which is connected to the inlet end of a decoloring treatment tank through a pipeline, the degumming treatment tank and the decoloring treatment tank are respectively equipped with a stirrer and a heating device, the degumming treatment tank is connected to a first reaction raw material tank, and the decoloring treatment tank is connected to a second reaction raw material tank.

2. The multi-stage treatment device of the waste oil recycling and purification system according to claim 1 is characterized in that: The degumming treatment tank is connected to a third gas absorption tank, a fourth one-way valve is connected between the third gas absorption tank and the degumming treatment tank, and the third gas absorption tank is connected to a vacuum pump through a pipeline.

3. The multi-stage treatment device of the waste oil recycling and purification system according to claim 1 is characterized in that: The bottom of the degumming treatment tank is connected to a waste pool through a slag discharge pipe, and the inlet end of the degumming treatment tank is also connected to the outlet end of the raw material tank through a pipeline.

4. The multi-stage treatment device of the waste oil recycling and purification system according to claim 1 is characterized in that: The top of the decolorization tank is connected to the inlet end of the second condenser through a pipeline, and the outlet end of the second condenser is connected to the inlet end of the second storage tank through a pipeline.

5. The multi-stage treatment device of the waste oil recycling and purification system according to claim 4 is characterized in that: The outlet end of the second storage tank is connected to the inlet end of the fourth gas absorption tank through a fifth one-way valve, and the fourth gas absorption tank is connected to a vacuum pump through a pipeline.

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