Circulating filtering 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 circulating filtration device of a waste oil recycling purification treatment system, which solves the problems that all impurities cannot be effectively removed by single filtration and the product quality of product oil is reduced, and comprises a filter tank, the inlet end of the filtering tank is connected with a purification treatment device, a circulating discharge pipe is connected between the filtering tank and the purification treatment device, and a pipeline between the inlet end of the filtering tank and the outlet end of the purification treatment device and the circulating discharge pipe form a circulating structure. The waste oil purifying and filtering device is used for purifying and filtering waste oil from mechanical equipment, automobiles, ships and the like in the using process, is provided with a circulating filtering structure, can effectively remove solid impurities in the waste oil, and improves the quality of product oil.

Description

Technical Field

[0001] The utility model relates to the technical field of oil purification treatment, in particular to a circulating filtration 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 a filtration part for removing some solid substances separated after treatment, such as granular impurities, precipitates, sludges, residual additives and other waste residues. The filtration effect directly affects the quality of the final product oil and is a key step in the purification treatment.

[0004] In the existing waste oil purification technology, the filtration of waste oil is only carried out by a single device for single filtration. Limited by the filtration effect of the filtration device, single filtration cannot ensure the effective removal of all impurities, reducing the quality of the product oil. Summary of the Utility Model

[0005] To solve the problems existing in the prior art, the utility model provides a circulating filtration device for a waste oil recycling and purification treatment system, which has a circulating filtration structure and can circulate and filter waste oil until it meets the requirements, ensuring the quality of the product oil.

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

[0007] A circulating filtration device for a waste oil recycling and purification treatment system includes a filtration tank. The inlet end of the filtration tank is connected to a purification treatment device, and a circulating discharge pipe is connected between the filtration tank and the purification treatment device. The pipeline between the inlet end of the filtration tank and the outlet end of the purification treatment device and the circulating discharge pipe form a circulating structure.

[0008] Further, the outlet end of the filtration tank is also communicated with the circulating discharge pipe through a pipeline and a valve, and the outlet end of the filtration tank is connected to a finished product tank through a pipeline.

[0009] Further, a bag filter is connected between the inlet pipeline and the outlet pipeline of the filtration tank.

[0010] Further, a slag discharge port is arranged at the bottom of the filtration tank, and a first pressure gauge is installed on the filtration tank.

[0011] Further, the filtering tank is also connected with an air pump through a pipeline, and the air pump is connected with the purification treatment device through a pipeline. A second pressure gauge is installed on the pipeline between the air pump and the filtering tank and the purification treatment device.

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

[0013] The circulating filtration device of the present utility model can recycle the waste oil that fails to meet the requirements after the first filtration to the previous-stage treatment equipment for re-treatment through the arranged circulating discharge pipe, and continue to be transported to the filtering tank for re-filtration. Finally, a pure product raw oil with a high purification rate can be obtained, which can be directly used for subsequent utilization. The waste oil treated by the device of the present utility model has obtained a significantly effective filtration effect, further improving the quality of the final product, and thus improving the economic benefits. Description of the Drawings

[0014] Figure 1 It is a process flow structure schematic diagram of the circulating filtration device of the present utility model;

[0015] Figure 2 It is a process flow chart (rotated 90 degrees) of a waste oil recycling and purification treatment system applied to the present utility model.

[0016] Reference Signs:

[0017] 1 - raw material tank, 2 - separation device, 3 - purification treatment device, 4 - circulating filtration device, 5 - finished product tank, 6 - vacuum pump, 7 - circulating water tank, 33 - oil pump;

[0018] 41 - filtering tank, 42 - circulating discharge pipe, 43 - bag filter, 44 - slag discharge port, 45 - first pressure gauge, 46 - air pump, 47 - second pressure gauge. Detailed Embodiments

[0019] The present utility model will be described in detail below with reference to the drawings and embodiments.

[0020] The circulating filtration device of the waste oil recycling and separation purification treatment system of the present utility model is mainly used for purifying and filtering the waste oil from the use process of mechanical equipment, automobiles, ships, etc. and converting it into reusable renewable resources. Through the equipment that can perform circulating filtration, efficient waste oil filtration treatment can be finally achieved. Specifically, the implementation manner of the present utility model is as follows:

[0021] Please refer to Figure 1, in the present utility model, the waste oil that has passed the treatment in the purification treatment device 3 and is qualified is transported to the circulation filtration device 4 through the oil pump 33 for filtration treatment. According to the filtration requirements, the filtration is carried out by the filtration tank 41 or the bag filter 43. As an alternative implementation, different filtration equipment can be selected according to the content of impurities such as waste residue in the treated waste oil. For example, a bag filter 43 or other filter can be connected to the circulation filtration device 4 in the system as an alternative to the filtration tank 41 to directly filter the waste oil. Similarly, filtration equipment such as the bag filter 43 can also be connected in a pipeline loop to the previous-stage treatment equipment to achieve circulation filtration. Thus, on the premise of ensuring the quality of the product oil, more efficient filtration equipment can be used to complete the filtration step, further improving the treatment efficiency of the system of the present utility model.

[0022] It should be noted that for the pipelines used in the device of the present utility model, according to the relevant pipeline connection settings of chemical equipment in the prior art, corresponding valves for opening and closing the pipelines can be provided 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] Limited by the filtration effect of the filtration equipment in the prior art, the waste oil after one-time filtration may not meet the production requirements. To ensure the quality and purity of the product oil, the present utility model circulates and transports the waste oil back to the purification treatment device 3 through the circulation discharge pipe 42 or the pipeline at the outlet end of the filtration tank 41 for circulation, and then transports it to the circulation filtration device 4 again for filtration. For the internal filtration structure of the filtration tank 41, any one or a combination of a filter screen, a filter element, a filter cloth or a plate-and-frame filtration mechanism can be selected, or other filtration mechanisms can also be set, with the priority consideration being to ensure the filtration effect; a slag discharge port 44 is provided at the bottom of the filtration tank 41, and the filtered waste residue is discharged from the bottom slag discharge port 44. During the filtration process, the pressure of the device is monitored by the first pressure gauge 45 installed on the filtration tank 41.

[0024] The filtration tank 41 is connected to an air pump 46 through a pipeline, and the air pump 46 is also connected to the purification treatment device 3 through a pipeline. The air pump 46 is arranged here to provide power for the medium transportation of the entire system. In addition, an air compressor can also be selected as the transportation power; a second pressure gauge 47 is installed on the pipeline between the air pump 46 and the filtration tank 41 and the purification treatment device 3 to monitor the pressure between the devices. The product oil obtained by the filtration treatment of the present utility model has higher purity and better quality compared with the treatment system of the prior art.

[0025] Please refer to Figure 2, which is one of the waste oil recycling and purification treatment systems applied to the present utility model. Among them, the waste oil raw material can be separated from part of the miscellaneous oil and impurities through the separation device 2 from the raw material tank 1 first, and then enter the multi-stage treatment system for degumming, decolorization and other treatments. After being treated by the purification treatment device 3 to meet the qualified standard, the waste oil enters the circulating filtration device 4 to remove the waste residue through circulating 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 circulating water tank 7 for absorption and discharge.

[0026] The above-described embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A circulating filter device for a waste oil recycling and purification system, characterized in that: It comprises a filter tank, the inlet end of which is connected to a purification device, a circulation discharge pipe is connected between the filter tank and the purification device, and a pipeline between the inlet end of the filter tank and the outlet end of the purification device and the circulation discharge pipe form a circulation structure.

2. The waste oil recycling and purification system circulation filtering device according to claim 1 is characterized in that: The outlet end of the filter tank is also connected to the circulation discharge pipe through a pipeline and a valve, and the outlet end of the filter tank is connected to the finished product tank through a pipeline.

3. The waste oil recycling and purification system circulation filtering device according to claim 1 is characterized in that: A bag filter is connected between the inlet end pipeline and the outlet end pipeline of the filter tank.

4. The waste oil recycling and purification system circulation filtering device according to claim 1 is characterized in that: A slag discharge port is arranged at the bottom of the filter tank, and a first pressure gauge is installed on the filter tank.

5. The waste oil recycling and purification system circulation filtering device according to claim 1 is characterized in that: The filter tank is also connected to an air pump through a pipeline, and the air pump is connected to the purification device through a pipeline. A second pressure gauge is installed on the pipeline between the air pump and the filter tank and the purification device.

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