RU129926U1 - INSTALLATION FOR REGENERATION OF WASTE OILS - Google Patents

Abstract

Installation for the regeneration of waste oils containing a container for waste oil, a pre-filter, a fine filter made in the form of an ultrafiltration apparatus, a tank for purified oil, a container for concentrate, a piping system with valves, a pump, characterized in that the pre-filter contains centrifuge, container for collecting water, container for collecting impurities, an intermediate container with a heating element and a stirrer, a metering tank with a coagulant, a pump, and a container for The used oil is additionally equipped with a heating element.

Description

FIELD OF TECHNOLOGY

The utility model relates to devices for cleaning and regenerating waste oils, including transformer, turbine, compressor and other industrial oils, as well as liquid oil-containing industrial wastes using a membrane separation process and can be used in various industries.

BACKGROUND

A device for the regeneration of transformer oil containing a feed pump, a filter, a circulation pump, a vacuum unit with a chamber, a vacuum pump, as well as pipelines, manometers and valves, the filter is made in the form of a bundle of tubular anisotropic membranes with a pore size of not more than 5 μm and placed in the chamber of the vacuum unit, while the output of the crude oil from the bundle of tubular anisotropic membranes is connected to the inlet of the filter through a control valve with a pressure gauge [Method for the regeneration of transformer oil and a device for its Property RF patent 2071972. Publ. 01/20/1997].

However, the known device is a bulky stationary unit with a low specific productivity of 1200 l / h.

A known installation for the regeneration of used industrial oils, including an inlet oil pump connected to a pre-filter and a valve, as well as an ultrafiltration device, a degasser tank with inlet and outlet pipes, an additional outlet oil and vacuum pumps, inlet and outlet check valves, a distributor and a condenser a vapor separator, wherein the inlet pipe of the degasser vessel is connected to the inlet oil pump through an inlet check valve, wherein the first outlet pipe to the degasser tank is connected to the inlet pipe through the outlet oil pump, distributor and to the outlet check valve through the outlet oil pump, distributor, ultrafiltration device, and the second outlet nozzle of the degasser tank is connected to the vacuum pump through the vapor condenser-separator [Waste regeneration method industrial oils and installation for its implementation. RF patent 2142980, publ. 12/20/1999]

However, the disadvantage of the analogue is the low efficiency of oil purification in one pass through the installation, i.e. to achieve the desired technical result, it is necessary to pass the oil through the installation several times, which does not allow to increase the productivity of the device, which is 1000 l / h.

The closest in technical essence and the achieved result, that is, a prototype, is an installation for the regeneration of used oils, including a series-connected pump, shut-off valves, a pre-filter and a fine filter, which is additionally equipped with tanks for used oil to reduce the number of stages of regeneration and reduce the reactivity of refined oil, pure gasoline and spent gasoline, the pre-filter is made of series-connected sections filter materials with different degrees of filtration, the fine filter is made in the form of an ultrafiltration apparatus, and the waste oil tank is connected through a shut-off valve, a pump, a shut-off valve, a pre-filter and two shut-off valves with an inlet to the ultrafiltration apparatus, also equipped with purified oil outlet pipes and concentrate, and the outlet pipe of the purified oil through the shutoff valve is connected to the tank of the purified oil, and the outlet pipe of the concentrate is connected through the shutoff a valve with a waste oil tank, a pure gasoline tank is connected through a shut-off valve to a pump inlet port, the output of which is connected to an inlet to an ultrafiltration apparatus by an additional pipeline with two shut-off valves, the spent gas tank is connected through a shut-off valve to a pre-filter inlet port and nozzles withdrawal of refined oil and concentrate [Method for the regeneration of waste oils and installation for its implementation Patent of the Russian Federation No. 2034910. Publ. 05/10/1995].

The disadvantages of the prototype are:

- the need to use additional containers for refined and spent gasoline in connection with the periodic washing of the filter materials with the preliminary filtration stage and the ultrafiltration stage with gasoline;

- environmental friendliness in connection with the use of gasoline;

- the complexity of the installation and its maintenance.

ESSENCE OF A USEFUL MODEL

The objective of the utility model is to create an installation for the regeneration of used oils, which eliminates the need to use additional containers for refined and used gasoline for periodic washing of filter materials; increase the environmental friendliness of the installation; to simplify the design of the installation and increase the convenience in its maintenance.

The problem is solved by creating an installation for the regeneration of used oils containing a container for used oil, a pre-filter, a fine filter made in the form of an ultrafiltration apparatus, a container for refined oil, a container for concentrate, a piping system with valves, a pump, and a filter pre-treatment contains a centrifuge, a container for collecting water, a container for collecting impurities, an intermediate container with a heating element and a stirrer, a metering tank with a coagulant , a pump, wherein the waste oil tank is further provided with a heating element.

Installation for the regeneration of waste oils is presented in figure 1, which shows a block diagram of a model, and figure 2 is a General view of the membrane apparatus.

Installation for the regeneration of waste oils (Figure 1) contains a tank for waste oil 1, equipped with a heating element 2, a piping system with valves 3, a pump 4, a centrifuge 5, a tank for collecting water 6, a tank for collecting impurities 7, an intermediate tank 8 s a heating element 9 and a stirrer 10, a dispensing container with a coagulant 11, a pump 12, a membrane apparatus 13, a container for purified oil 14, a container for concentrate 15.

The membrane apparatus (FIG. 2) consists of a polychloride casing 16 made in the form of a pipe with flanges 17. Inside the casing, seven membrane elements 19 made in the form of porous tubes are fixed in plugs 18 of epoxy resin. A polymer material 20 is applied to the inner surface of the tubes 19. A nozzle 21 is intended for the withdrawal of purified oil; a nozzle 22 is used to drain the concentrate.

Installation works as follows. The waste oil enters the tank 1, in which the heating element 2 maintains its temperature in the range of 50-60 ° C. The pump 4 through the pipeline 3 carries out the transfer of oil to a centrifuge 5 for cleaning water and solids. Due to the rotation of the conical plates of the drum, the resulting centrifugal force separates the water into the container for collecting water 6, and the suspended particles are thrown into the container for collecting impurities 7. The oil being purified by gravity enters the intermediate container 8, where it is mixed with coagulant particles (for example, urea) coming from the metering tank 10, and is intensively mixed from the rotation of the blades of the mixer 9. The rotation speed of the mechanical mixer is in the range from 200 to 600 min ^-1 . This allows mechanical particles to stick together and coarsen under the action of a coagulant.

The temperature at 50 ° C of the oil being cleaned is maintained by a heating element interlocked with an intermediate tank 8. Depending on the mixing mode and coagulation time, the pump 11 pumps the oil into the membrane apparatus 12. The oil enters the membrane porous tubes 19 under an overpressure of 0.3-0, 5 MPa. An ultrafiltration process takes place, separating the oil into refined oil and concentrate, which through the nozzles 21 and 22, respectively, enter the containers for refined oil and concentrate 14 and 15.

The proposed utility model eliminates the need for periodic washing of the pre-filter, as well as improve the environmental friendliness of the installation and ease of maintenance.

In addition, the installation does not contain complex mechanical systems, which increases its reliability, and the use of a pre-filter that does not require rinsing with gasoline in front of the membrane apparatus allows avoiding traces of gasoline in the refined oil and, thus, improving the quality of oil refining. The main characteristics of the purified oil (the content of solids and water, density at 20 ° C, viscosity at 100 ° C and flash point) are not inferior to the corresponding parameters of the prototype.

Claims (1)

Installation for the regeneration of waste oils containing a container for waste oil, a pre-filter, a fine filter made in the form of an ultrafiltration apparatus, a tank for purified oil, a container for concentrate, a piping system with valves, a pump, characterized in that the pre-filter contains centrifuge, container for collecting water, container for collecting impurities, an intermediate container with a heating element and a stirrer, a metering tank with a coagulant, a pump, and a container for The used oil is additionally equipped with a heating element.

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