CN211384025U

CN211384025U - Waste mineral oil filter equipment that unloads

Info

Publication number: CN211384025U
Application number: CN201921954696.6U
Authority: CN
Inventors: 吴贝; 张先茂; 郑峰伟; 王泽�; 王国兴; 陈凯; 王栋斌; 周正; 王瑜
Original assignee: Hubei Runchi Environmental Protection Technology Co ltd
Current assignee: Hubei Runchi Environmental Protection Technology Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-09-01
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a waste mineral oil filter equipment that unloads, including interface and pipeline of unloading, the steam control valve unloads oily control valve, liquid level controller, temperature controller, spark arrester, delivery pump cross the filter bag, level sensor, thermocouple, steam heating return circuit pipe, buffer tank, heat exchange tube support, steam inlet pipe, steam discharging pipe, output pipeline. The utility model discloses a filter equipment that unloads has that filter area is big, filter speed is fast, filter fineness is high, the low temperature can normal operating season, the filter residue capacity height of filter bag and the characteristics of easy clearance, can effectively solve mechanical impurity, colloid and block up delivery pump and oil pipeline problem to but categorised collection mechanical impurity, colloid.

Description

Waste mineral oil filter equipment that unloads

Technical Field

The utility model relates to a waste mineral oil regeneration facility technical field, concretely relates to waste mineral oil filter equipment.

Background

Mineral oil is the most widely used fossil energy source by human beings, and the physical and chemical properties of the mineral oil are changed during the use process due to thermal decomposition, oxidation, water absorption, pollution by foreign matters, dilution of fuel oil and the like to form waste mineral oil. Since the waste mineral oil is difficult to degrade after polluting soil and water sources and has lasting harm, the waste mineral oil is listed in national hazardous waste record, belongs to the 8 th (HW 08) hazardous waste and has obvious inflammability and toxicity. At present, the waste mineral oil treatment technology in China is not high, the scale is small, and the recovery rate of the waste mineral oil is about 6%.

At present, the hydrogenation regeneration of the waste mineral oil is the most ideal treatment mode, which can slow down the energy crisis and does not cause secondary pollution. The waste mineral oil hydrogenation regeneration comprises the processes of pretreatment, distillation, hydrofining to remove sulfur, nitrogen, chlorine and a small amount of unsaturated hydrocarbon, fractionation to obtain base oil and the like of different distillation sections, wherein the pretreatment comprises the processes of removing colloid, mechanical impurities and residual carbon, neutralizing acid value, fractionating and the like to obtain pretreated decompression oil. The pretreatment usually adopts a filtration technology to separate most of mechanical impurities and colloid, so that the problems of machine pump abrasion, easy blockage and coking of a heat exchanger and a fractionating tower in the production process and the like are solved.

At present, an automatic backwashing filter is not commonly adopted in the industry, and due to the fact that the source of materials is unstable, and the content of mechanical impurities and colloid of the materials is high, the problems that the filtering rate of the automatic backwashing filter is low, automatic washing is frequent, filter elements are difficult to regenerate and the like are caused, and the filtering process is seriously influenced.

Disclosure of Invention

The problem that the filter element is time-consuming to clean and cannot meet the production requirement in order to overcome the problems that the prior filtering technology has low filtering efficiency in the regeneration process of the waste mineral oil. The utility model provides a waste mineral oil filter equipment that unloads, the device includes: the device comprises an unloading interface, a pipeline, a steam control valve, an oil unloading control valve, a liquid level controller, a temperature controller, a flame arrester, a delivery pump, a filter bag, a liquid level sensor, a thermocouple, a steam heating loop pipe, a buffer tank, a heat exchange pipe support, a steam inlet pipe, a steam outlet pipe and an output pipeline.

The utility model provides a technical scheme that its technical problem adopted is: the top of the buffer tank (12) is provided with six flange connectors, and a steam discharge pipe (15), a steam control valve (2), an oil discharge control valve (3), a liquid level controller (4), a temperature controller (5), a flame arrester (6), a delivery pump (7) and a pipeline are sequentially connected or installed from left to right on the top of the tank; a steam heating loop pipe (10), a filter bag (8), a liquid level sensor (9), a thermocouple (11) and an output pipeline (16) are correspondingly connected in the tank cavity; the bottom of the heat exchange tube support (13) is welded at the inner bottom of the buffer tank (12), and the upper part of the heat exchange tube support (13) supports the steam heating loop tube (10) and is fixed by spot welding.

Furthermore, the upper part of the oil unloading control valve (3) is connected with an unloading interface and a pipeline (1); the flange at the lower part of the oil unloading control valve (3) is overlapped and connected with the double-layer rubber flange (17) and the flange of the buffer tank (12) and is fixed by bolts and nuts.

Furthermore, the edge of the mouth of the filter bag (8) is provided with a double-layer rubber flange (17), and the edge of the mouth of the filter bag (8) is wrapped and clamped in a gap of the double-layer rubber flange (17); the double-layer rubber flange (17) is positioned between the oil discharge control valve (3) and the flange of the feeding pipeline of the buffer tank (12), and the filter bag (8) is sleeved in the feeding pipeline of the buffer tank (12) and extends to the inside of the buffer tank.

Furthermore, the filter bag (8) is a multi-stage filter bag formed by four layers of overlapped sleeves, filter bags with different standard meshes can be selected according to the viscosity, colloid, mechanical impurity content and particle size of waste mineral oil, preferably, the I-stage filter bag is a 20-mesh metal mesh bag, the II-stage filter bag is a 40-mesh nylon bag, the III-stage filter bag is an 80-mesh nylon bag, and the IV-stage filter bag is a 120-mesh nylon bag.

Furthermore, the bottom of the heat exchange tube support (13) is welded on the buffer tank (12), and the upper part of the heat exchange tube support (13) is fixed with the steam heating loop tube (10) in a spot welding manner; the steam heating loop pipes (10) are horizontally arranged in the tank, and the vertical height from the bottommost part of the buffer tank is 0.1 time of the height of the buffer tank.

Furthermore, the waste mineral oil is guided into a filter bag (8) for filtering through an unloading interface, a pipeline (1) and an oil unloading control valve (3), and the filtered oil flows into a buffer tank (12) and is conveyed to an oil storage tank through an output pipeline (16) and a conveying pump (7).

Furthermore, the oil unloading control valve (3), the liquid level controller (4), the liquid level sensor (9), the delivery pump (7) and the output pipeline (16) form a liquid level control system; the liquid level sensor (9) in the tank transmits a liquid level signal to the liquid level controller (4), and the liquid level controller (4) adjusts the opening of the oil unloading control valve (3) to control the feeding amount or adjusts the oil output rate of the delivery pump (7) to ensure that the waste mineral oil in the buffer tank keeps the optimal filtration liquid level.

Furthermore, the steam control valve (2), the temperature controller (5), the thermocouple (11) and the steam heating loop pipe (10) form a temperature control system; superheated steam is conveyed into a steam heating loop pipe (10) through a pipeline to exchange heat with waste mineral oil, a thermocouple (11) transmits an oil temperature signal to a temperature controller (5), and the temperature controller (5) adjusts the opening of a steam control valve (2) to control the steam feeding amount so that the oil temperature reaches the temperature value required by optimal filtration.

Furthermore, the temperature controller (5) and the liquid level controller (9) can be used for setting or adjusting the temperature, the temperature rise rate, the liquid level value and the oil discharge rate in a DCS system on site or remotely.

Furthermore, an observation hole is reserved in the top of the buffer tank (12), so that an operator can observe the running condition of the filtering equipment in real time; when the filtering equipment is blocked, the oil discharge control valve (3) is closed in time, and the inner core of the filtering equipment is replaced and cleaned.

Furthermore, a flame arrester (6) is arranged on the top of the buffer tank (12) to prevent the buffer tank from causing danger due to static electricity and light oil components.

The utility model provides a pair of waste mineral oil filter equipment that unloads lies in: 1. the method has the advantages of large filtering area, high filtering speed, low consumption, less pollution discharge, capability of recycling the byproduct colloid component and the like; 2. the four-layer progressive filtration can obviously improve the quality of oil products, reduce the deposition of substances such as mechanical impurities, colloid and the like in a buffer tank, prevent the blockage of a delivery pump, a pipeline and equipment and also can classify and recover the mechanical impurities and the colloid in the oil; 3. the oil temperature control system can adjust the oil temperature in the buffer tank, and avoid the influence on the regeneration working condition caused by the reduction of the filtration rate due to the increase of the viscosity of the waste mineral oil in low-temperature seasons and the reduction of the fluidity.

Drawings

Fig. 1 is a schematic structural view of the waste mineral oil unloading filtering device of the utility model.

Fig. 2 is a right side view showing a section taken along line a-a in fig. 1.

Fig. 3 is a schematic perspective view of the filter bag.

Wherein: the device comprises an unloading connector and pipeline 1, a steam control valve 2, an oil unloading control valve 3, a liquid level controller 4, a temperature controller 5, a flame arrester 6, a delivery pump 7, a filter bag 8, a liquid level sensor 9, a steam heating loop pipe 10, a thermocouple 11, a buffer tank 12, a heat exchange pipe support 13, a steam inlet pipe 14, a steam outlet pipe 15, an output pipeline 16 and a double-layer rubber flange 17.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

The upper part of the oil unloading control valve 3 is connected with an unloading interface and a pipeline 1, and a flange at the lower part of the oil unloading control valve 3 is overlapped and connected with a double-layer rubber flange 17 and a flange of a buffer tank 12 in an up-down sequence and is fixed by bolts so as to feed materials.

The waste mineral oil recovered by the tank truck is guided into a filter bag 8 through a unloading interface, a pipeline 1 and an oil unloading control valve 3, the filtered oil enters a buffer tank 12, and the filtered oil is conveyed to an oil storage tank through an output pipeline 16 and a conveying pump 7.

The oil unloading control valve 3, the liquid level controller 4, the liquid level sensor and the liquid level sensor 9 form a feeding control system; the steam control valve 2, the temperature controller 5, the thermocouple 11 and the steam heating loop pipe 10 form a temperature control system.

The liquid level sensor 9 in the tank transmits a liquid level signal to the liquid level controller 4, and the liquid level controller 4 controls the feeding amount of the waste mineral oil by adjusting the opening degree of the oil unloading control valve 3 and adjusts the oil output rate of the delivery pump 7 so that the liquid level is kept at the optimal filtering position with the height of 0.4-0.6 times of that of the buffer tank. Superheated steam is conveyed into the steam heating loop pipe 10 through a pipeline to exchange heat with waste mineral oil, the thermocouple 11 transmits an oil temperature signal to the temperature controller 5, and the temperature controller 5 adjusts the opening degree of the steam control valve 2 to control the steam feeding amount so as to keep the oil temperature at an optimal filtering value of 40-45 ℃.

According to the viscosity and the colloid of the waste lubricating oil, the content of mechanical impurities and the particle size, a certain environmental protection technology company Limited in Tianmen city of Hubei province selects a grade I filter bag as a 20-mesh metal mesh bag, a grade II filter bag as a 40-mesh nylon bag, a grade III filter bag as an 80-mesh nylon bag and a grade IV filter bag as a 120-mesh nylon bag. The I-grade metal mesh bag is relatively short and arranged at the oil sample inlet, so that large-particle mechanical impurities and colloid can be filtered, and oil can be well dispersed to avoid the oil from scouring the part of the nylon filter bag. The multi-stage filtration can realize the separation of solid particles, mechanical impurities, colloid and waste oil liquid layer by layer, wherein the grade I and II filter bags mainly collect the solid particles and the mechanical impurities, the grade III and IV filter bags mainly collect the colloid which is difficult to filter, and the filtered mechanical impurities and the colloid are classified and recovered, so that the pollutant discharge amount is reduced.

What has been described above is merely an embodiment of the present invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a waste mineral oil filter equipment that unloads which characterized in that: the top of the buffer tank (12) is provided with six flange connectors, and a steam discharge pipe (15), a steam control valve (2), an oil discharge control valve (3), a liquid level controller (4), a temperature controller (5), a flame arrester (6), a delivery pump (7) and a pipeline are sequentially connected or installed from left to right outside; a steam heating loop pipe (10), a filter bag (8), a liquid level sensor (9), a thermocouple (11) and an output pipeline (16) are correspondingly connected or installed in the tank cavity; the bottom of the heat exchange tube support (13) is welded at the inner bottom of the buffer tank (12), the upper part of the heat exchange tube support (13) supports the steam heating loop tube (10) and is fixed by spot welding, the steam heating loop tube (10) is horizontally arranged in the tank, and the vertical height from the bottommost part of the buffer tank is 0.1 time of the height of the buffer tank.

2. The used mineral oil unloading filtering device of claim 1, wherein: the edge of the mouth of the filter bag (8) is provided with a double-layer rubber flange (17), and the edge of the mouth of the filter bag (8) is wrapped and clamped in the gap of the double-layer rubber flange (17); the double-layer rubber flange (17) is positioned between the oil discharge control valve (3) and the flange of the feeding pipeline of the buffer tank (12), and the filter bag (8) is sleeved in the feeding pipeline of the buffer tank (12) and extends to the inside of the buffer tank.

3. The used mineral oil unloading filtering device of claim 1, wherein: the upper part of the oil unloading control valve (3) is connected with an unloading interface and a pipeline (1); the flange at the lower part of the oil unloading control valve (3) is overlapped and connected with the double-layer rubber flange (17) and the flange of the buffer tank (12) and is fixed by bolts and nuts.

4. The used mineral oil unloading filtering device of claim 1, wherein: the filter bag (8) is a multi-stage filter bag formed by four layers of overlapped sleeving, and filter bags with different standard meshes can be selected for matching according to the viscosity and colloid of waste mineral oil, the content of mechanical impurities and the particle size.

5. The used mineral oil unloading filtering device of claim 1, wherein: waste mineral oil is led into a filter bag (8) for filtering through an unloading interface, a pipeline (1) and an oil unloading control valve (3), and the filtered oil flows into a buffer tank (12) and is conveyed to an oil storage tank through an output pipeline (16) and a conveying pump (7); the oil unloading control valve (3), the liquid level controller (4), the liquid level sensor (9), the delivery pump (7) and the output pipeline (16) form a liquid level control system; the liquid level sensor (9) in the tank transmits a liquid level signal to the liquid level controller (4), and the liquid level controller (4) adjusts the opening of the oil unloading control valve (3) to control the feeding amount or adjusts the oil output rate of the delivery pump (7) to ensure that the waste mineral oil in the buffer tank keeps the optimal filtering liquid level; the steam control valve (2), the temperature controller (5), the thermocouple (11) and the steam heating loop pipe (10) form a temperature control system; superheated steam is conveyed into a steam heating loop pipe (10) through a pipeline to exchange heat with waste mineral oil, a thermocouple (11) transmits an oil temperature signal to a temperature controller (5), and the temperature controller (5) adjusts the opening of a steam control valve (2) to control the steam feeding amount so that the oil temperature reaches the temperature value required by optimal filtration.