RU191308U1 - Installation for separation and purification of used engine oils - Google Patents

Abstract

The utility model relates to the technology of separation and purification of used engine oils, and can be used in the operation of technical systems in various industries. The device contains pipelines with shutoff valves, a reservoir for used oil, a centrifugal centrifuge, gear pumps, an intermediate tank with magnetic plugs, a stirrer, a heating element and a dispenser for coagulant, an ultrafiltration module that includes housings with ultrafilters placed in them for separating the used oil into permeate and retantate, while between the waste oil tank and a centrifugal centrifuge, a flow-type heater and a vacuum are installed in series a water evaporator with a catchment basin, and the ultrafiltration module is rigidly connected to the vibration platform, while dispensers with additives for decolorizing the purified oil are placed in the permeate tanks. 3 ill.

Description

The utility model relates to the technology for cleaning used engine oils using the ultrafiltration separation process and can be used in the operation of technical systems in various industries.

For the separation and purification of solutions, a known installation (Pat. No. 2300413 Russian Federation IPC B01D 63/00, B01D 61/58, B01D 65/08, B01D 29/62. Membrane installation for separation of solutions. / Skidanov E.V .; applicant and patent holder Skidanov E.V. - No. 2005104107/15, claimed 08.12.2003; publ. 06/10/2007. Bull. No. 16 - 10 s; ill.), containing the capacity of the initial solution connected by pipelines, a discharge pump or a centrifugal centrifugal pump, accumulating capacity, membrane apparatus comprising a housing with a membrane element disposed therein for dividing the solution into concentrate t and permeate, a membrane element regeneration unit, including a recirculation circuit and shut-off and control valves, as well as a bactericidal filter installed in front of the initial solution tank, a pressure regulator located between the pump storage tank and a membrane apparatus with an additional pump installed on the permeate outlet pipe.

The main disadvantage of this device is the complexity of the design and maintenance.

As a prototype, an ultrafiltration unit for placement and purification of used oils was adopted (Pat. No. 126959 Russian Federation, IPC B01D 63/00. Ultrafiltration unit for separation and purification of used oils. / Markelov A.V., Postnikov A.V., Osadchy Yu .P. Et al., Applicant and patent holder: FSBEI HPE Ivanovo State Energy University named after V.I. Lenin, - No. 20112145713/05; application. October 25, 2012; published on April 20, 2013. Bull. No. 11. - 4 sec. : il.), containing pipelines with valves, a reservoir for waste oil, a centrifugal cent ifugu, ultrafiltration unit consisting of a housing with ultrafilters arranged therein for the separation of waste oil in the permeate and retantat and intermediate reservoir magnetic mirror mounted on the bottom, downstream of centrifugal centrifuges and equipped with a stirrer, a heating element and a dispenser with coagulant.

The disadvantages of the prototype include the unsatisfactory removal of water particles from the used oil, as well as the limited throughput due to the rapid clogging of the porous surface of ultrafilters, since the used oil contains a high concentration of amorphous and solid particles. This leads to an increase in preventive downtime associated with the replacement of ultrafilters or their washing to remove contaminants. In addition, in the final product - permeate, liquid suspensions are retained, which give the reconstituted oil a dark shade, which worsens its appearance.

The technical result of the claimed utility model is to increase the intensification of separation and plant performance.

This result is achieved by the fact that in a device for separating and purifying waste oils containing pipelines with shutoff valves, a reservoir for used oil, a centrifugal centrifuge, gear pumps, an intermediate tank with magnetic plugs, a stirrer, a heating element and a coagulant dispenser, an ultrafiltration module, consisting of housings with ultrafilters placed in them for separating the used oil into permeate and retantate, according to a utility model, between the tank was spent th oils and sequentially mounted centrifugal spinner flow-type heater and a vacuum evaporator water with Water Collector and ultrafiltration module is fixedly connected to the vibrating platform, wherein in the tanks with the permeate has dispensers with additives for discoloration purified oil.

The technical result, which consists in increasing the intensification of separation, cleaning and plant productivity, is achieved by heating the used oil in a flow-type heater and then entering a vacuum evaporator, from which suspended water particles enter the water collector, and in the area of the ultrafiltration module, vibrations of the vibration platform occur self-cleaning of the porous working surface of the filters, which improves the performance and quality of cleaning, after which they are obtained th permeate clarify (the process of decolorization) in tanks equipped with dispensers with special additives.

The essence of the proposed installation is illustrated by drawings, where in FIG. 1 shows a block diagram of the installation, in FIG. 2 is a general view of the ultrafiltration module; FIG. 3 - section of the module.

A device for the separation and purification of waste oils contains a reservoir of waste oil 1, which is connected through a piping system 2 with shutoff valves to a gear pump 3, and then in series with a flow type heater 4 and a vacuum water evaporator 5 equipped with an air intake 6. The evaporator 5 through pipelines 2 communicates with a centrifugal centrifuge 7, which during operation moves the impurities into the collector 8.

The intermediate tank 9 is interlocked with the heating element 10 and magnetic plugs 11. In the upper part of the tank 9, a mixer 12 and a dispenser 13 with a coagulant are installed. The reservoir 9 through pipelines 2 and the pump 3 interacts with the ultrafiltration module 14, which is located on the vibration platform 15 and has two outlet pipes 16 (for permeate), 17 (for retantant).

The ultrafiltration module 14 (Fig. 2) consists of the following prefabricated elements: collectors 18 connected to the pipelines 2 by means of connecting links 19 with vibration damping gaskets and hollow bodies 20, rigidly fixed by flanges 21 on the collectors 18.

Porous tubular ultrafilters 22 are installed in the housings 20 (FIG. 3). These filters are held in the housings 20 by epoxy plugs 23. A reservoir 24 is intended for collecting permeate (Fig. 1). The lower part of the tank 24 by the pipe 2 and the gear pump 3 communicates with the parallel tanks 25 having the same volume. Each such tank is equipped with a dispenser 26 with additives that discolor permeate, after which the recovered motor oil through the pipe 27 is used for its intended purpose.

The proposed device operates as follows.

The used oil from the tank 1 through the pipe 2 with a gear pump 3 is pumped to a flow-type heater 4 and enters a vacuum evaporator 5, where during the evaporation of water it enters the sump 6. The resulting mixture flows into a centrifuge 7 and centrifugal forces from the rotating conical plates located inside centrifuges, the impurities are separated into the collector 8, after which the oil flows by gravity into the intermediate tank 9, where it is affected by a mixer 12, and the heating elements 10 increase the temperature to the limit (80-100) ° C. During the operation of the installation, a coagulant (for example, urea) is supplied to the tank 9 through the batcher 13, which causes oxidation products to stick together, forming coarse particles. To remove metal suspensions remaining after the separation process, magnetic plugs 11 are used located on the bottom of the tank.

Depending on the mixing mode and the action of the coagulant, the gear pump 3 pumps the liquid mixture into the ultrafiltration module 14. Here the mixture flows from the horizontal manifold 18 into the vertical housings 20 and passes through the porous surface of the ultrafilters 22 (Fig. 2 and Fig. 3). In the process of oil purification on the surface of the filters 22 deposits of resinous sedimentary material (concentrated oxidation products) occur. These particles clog the pores of the filters 22, which reduces their throughput and adversely affects the performance of the entire installation. To eliminate this drawback, the casing 20 is perpendicular to the horizontal bearing base - the vibration platform 15. The oscillation process of the platform 15 provides an electromagnetic vibration exciter with a vibration amplitude (1-2) mm (not shown in Fig.).

Due to oscillatory movements, sedimentary particles are detached from the surface of the ultrafilters 22 and are carried away by the flow of the solution to be separated through the outlet pipe 17 from the working area of the ultrafiltration module 14. The resulting permeate through the pipe 16 flows into the collection tank 24.

In the future, the gear pump 3 provides the permeate in one of the tanks 25, which is filled to a predetermined volume. Upon reaching a predetermined volume, the overflow into this tank is blocked and filler material for permeate decolorization enters through dispenser 26.

The technological time of decolorization may not coincide with the time of filling the permeate in the tank 24, therefore, in order not to stop the installation due to the decolorization process, the permeate is delivered to another reserve tank 25.

The clarified permeate takes the presentation (restored salable oil) and through the outlet pipe 27 is subject to the specified application in the relevant technical devices.

Removing water using a vacuum evaporator 5 increases the intensification of separation, and vibrational vibrations of the platform 15 increase the permeability and durability of the membranes 22, which generally improves the performance of the inventive installation.

The process of decolorization discolours liquid suspensions and allows to obtain commercial industrial oil, which complies with GOST 20799-88 “Industrial oils. Technical conditions. "

Claims (1)

A device for the separation and purification of waste oils, containing pipelines with shutoff valves, a reservoir for waste oil, a centrifugal centrifuge, gear pumps, an intermediate tank with magnetic plugs, a stirrer, a heating element and a coagulant dispenser, an ultrafiltration module that includes housings with ultrafilters placed in them for separating waste oil into permeate and retantate, characterized in that between the reservoir of waste oil and a centrifugal centrifuge is followed A flow-type heater and a vacuum evaporator of water with a water collector are installed, and the ultrafiltration module is rigidly connected to the vibration platform, while dispensers with additives for decorating the purified oil are placed in permeate tanks.

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