CN114310466A - Oil centralized treatment system and treatment method - Google Patents

Abstract

The invention discloses an oil centralized treatment system and a treatment method, wherein the treatment system comprises an oil pumping station, a paper tape type filtering device, an oil collecting box, a UV (ultraviolet) sterilizing device, a three-phase separating device, a liquid purifying box, a liquid supplying device, an online monitoring device, a control system, a pipeline and an automatic liquid supplementing device; the oil liquid enters an oil liquid collecting box after being filtered by the paper tape type filtering device, the oil liquid collecting box is communicated with a UV sterilizing device through a pipeline, and microorganisms in the wastewater are sterilized through UV rays; the UV sterilization device is communicated with the three-phase separation device through a pipeline, and sterilized oil enters the three-phase separation device; the three-phase separation device is communicated with a liquid purifying box through a pipeline, and the liquid purifying box is connected with the online monitoring device and the automatic liquid supplementing device. The oil centralized processing system and the oil centralized processing method can be used for processing the oil in a plurality of machine tools in a centralized manner, the oil processing and the oil supply are not interfered with each other, the normal operation of the machine tools is not influenced, and the oil processing efficiency is improved.

Description

Oil centralized treatment system and treatment method

Technical Field

The invention relates to the field of oil treatment, in particular to an oil centralized treatment system and a treatment method.

Background

The water-based metal working fluid emulsion has the main functions of cooling, lubricating, rust preventing and cleaning, so that the accurate machining precision, the good workpiece surface roughness, the scrap iron flushing, the cutter service life prolonging and the like are ensured. The following problems arise during the use of emulsions: the emulsified oil contains fatty oil and unsaturated fatty acid, is easily corroded by microorganisms, is decomposed and destroys the balance of the emulsion to generate oil precipitation, and the acid value is increased, so that the phenomenon that: putrefactive odor is generated; the emulsion turns from milk white to grey brown; the pH value and the antirust function are sharply reduced; the oil-water separation of the emulsion generates substances such as sediment or oil sludge, and the cutting performance is reduced. In addition, in the use process, miscellaneous oil (guide rail oil, lubricating oil and the like of a machine tool) and scraps and the like in the metal processing process are mixed, impurities are increased to a certain degree, rancidity is caused, breeding of anaerobic bacteria is accelerated, and the metal processing liquid generates odor, so that the metal processing liquid is deteriorated and discarded. Therefore, the impurities need to be removed in time, and the service life is prolonged. In addition, in hard water containing various minerals and salts, the emulsion is often prevented from proceeding, the emulsion is separated rapidly, and a large amount of water-insoluble soap is separated out, thereby shortening the service life. In the prior art, emulsion preparation and concentration detection are usually carried out through manual measurement of the mixture ratio, and the manual measurement error of the concentration is large. During the use process, the concentration of the emulsion can change and is difficult to control.

Disclosure of Invention

The invention aims to provide an oil centralized treatment system and an oil centralized treatment method aiming at the defects in the prior art.

In order to achieve the purpose, the invention adopts the following scheme:

an oil centralized treatment system comprises an oil pumping station, a paper tape type filtering device, an oil collecting box, a UV sterilizing device, a three-phase separating device, a liquid purifying box, a liquid supplying device, an online monitoring device, a control system, a pipeline and an automatic liquid supplementing device; the oil liquid pumping station pumps oil liquid from the machine tool to the paper tape type filtering device, the oil liquid is filtered by the paper tape type filtering device and then enters the oil liquid collecting box, the liquid level control device is arranged in the oil liquid collecting box, the oil liquid collecting box is communicated with the UV sterilizing device through a pipeline, and microorganisms in the wastewater are sterilized through UV rays; the UV sterilization device is communicated with the three-phase separation device through a pipeline, sterilized oil enters the three-phase separation device, and floating oil in the oil is separated in a physical mode; the three-phase separation device is communicated with a liquid purification box through a pipeline, an online monitoring device is arranged on the liquid purification box, a liquid supply device is arranged in the liquid purification box, the liquid supply device supplies oil liquid in the liquid purification box to the outside, the liquid purification box is communicated with the automatic liquid supplementing device through a pipeline, and the automatic liquid supplementing device supplements mixed liquid of water and concentrated oil liquid into the liquid purification box; the control system comprises a Siemens PLC and a touch screen and is used for controlling and displaying the working state of each device in the processing system.

Furthermore, the oil pumping station is connected with an oil system of the machine tool, and the liquid purifying tank is connected with the oil collecting tank and the oil system of the machine tool.

Further, the paper tape type filtering device comprises filter paper, a water inlet tank, a driving device, a feeding liquid level switch, a bearing tape, a filtering bin and a dirt collecting box.

Further, the three-phase separation device comprises a feed pump, a regulating valve, a cavity, a baffling collision component, an oil collecting tank, an overflow alarm, a high liquid level switch, a low liquid level switch, a lifting pump, a sediment discharge valve, a floating oil discharge valve and a floating oil and sediment collecting box; wherein, feed pump and governing valve set gradually in the pipeline of device entry, baffling collision subassembly sets up at the cavity middle part, the oil trap sets up the top partially at baffling subassembly rear portion, the overflow alarm sets up on cavity afterbody top, high liquid level switch and low liquid level switch set gradually on cavity export wall, the elevator pump sets up in the cavity exit, the precipitate blow-off valve sets up in the cavity bottom, the setting of oil slick blow-off valve is in the pipeline bottom with the oil trap intercommunication, precipitate blow-off valve and oil slick blow-off valve all with the pipe connection at oil slick and precipitate collection tank top.

Further, the liquid supply device comprises a supply pump and a liquid level measuring device, and the supply pump and the liquid level measuring device are arranged at one end of the top of the liquid purifying tank.

Further, the automatic liquid supplementing device comprises a liquid mixer, wherein the liquid mixer comprises a water source control valve, a water pipe connector, an oil suction pipe flange, a concentrated liquid suction pipe, an overflow valve, a bent pipe joint, a hose clamp and an oil liquid outlet pipe; the liquid mixer is connected with a water source through a water pipe connector and is connected with an oil liquid concentrated liquid tank through a concentrated liquid absorption pipe, and oil and/or water are supplied to the liquid purifying tank.

Further, the on-line monitoring device comprises a lifting pump, a monitoring pipeline, a pH monitor, a temperature monitor, a conductivity monitor and a concentration monitor, wherein the pH monitor, the temperature monitor, the conductivity monitor and the concentration monitor are arranged in the pipeline, oil in the liquid purification box is lifted to the pipeline by the lifting pump, and the oil circulates back to the liquid purification box after flowing through each monitor.

Further, the oil liquid is machine tool emulsion.

The method for performing oil centralized treatment by adopting the oil centralized treatment system comprises the following steps:

s1, pumping oil in the machine tool to the paper tape type filtering device through an oil pumping station;

s2, filtering the oil through a paper tape type filter device, and enabling the filtered oil to enter an oil collecting box;

s3, enabling oil in the oil collecting box to enter a UV sterilization device, and sterilizing microorganisms in the wastewater through UV rays;

s4, enabling the oil liquid after being sterilized in the UV sterilization device to enter a three-phase separation device, and separating floating oil in the oil liquid in a physical mode to remove the floating oil and sediments;

s5, enabling the oil liquid after separation in the three-phase separation device to enter a liquid purification box, and enabling the oil liquid in the liquid purification box to enter a monitoring pipeline through a lift pump to monitor the oil liquid;

and S6, outputting the oil liquid through the liquid supply device after the monitoring reaches the standard.

Further, in step S5, the pH, temperature, conductivity, concentration and flow rate of the oil are monitored in real time through a display screen of the control system.

Further, in step S6, the desired oil and/or water is selected according to the monitored information, and the concentrate oil and/or water is supplied to the net liquid tank through the liquid mixer.

Further, the concentrated oil liquid and water are mixed in proportion by a liquid mixer, wherein the mixing proportion of the concentrated oil liquid is 0-20% by volume.

Compared with the prior art, the invention has the advantages that: the oil centralized processing system and the oil centralized processing method can be used for processing the oil in a plurality of machine tools in a centralized manner, the oil processing and the oil supply are not interfered with each other, the normal operation of the machine tools is not influenced, and the oil processing efficiency is improved. Simultaneously, filter impurity through paper tape filter equipment, disinfect through UV sterilizing equipment, carry out high-efficient physical separation through three-phase separator, get rid of the oil slick and the sediment in the fluid, finally, through the index monitoring to the fluid of liquid purification incasement fluid, but each item index of real-time supervision fluid, monitor and adjust the processing state of fluid, through automatic fluid infusion device, carry out the replenishment of concentrate and water to the fluid that does not satisfy the operation requirement after handling yet, can automatic adjustment mix the proportion, improve the accurate ratio of fluid, especially emulsion, reduce the error and the time cost of artifical ratio, improve fluid life 2-3 times.

Drawings

FIG. 1 is a schematic view of a centralized oil treatment system

FIG. 2 is a schematic view of a paper-tape type filtering device

FIG. 3 is a schematic view of a three-phase separator

FIG. 4 is a schematic view of the structure of a liquid mixer

Reference numerals: 1. a machine tool, 2, a paper tape type filtering device, 3, an oil liquid collecting box, 4, a UV sterilizing device, 5, a three-phase separating device, 6, a liquid purifying box, 7, a liquid mixing device, 8, concentrated oil liquid, 9, a water source, 10, filter paper, 11, a feed liquid level switch, 12, a filter bin, 13, a liquid level measuring instrument, 14, a supply pump, 15, a water inlet tank, 16, a driving device, 17, a bearing belt, 19, a feed pump, 20, a regulating valve, 21, a baffling collision component, 22 an oil collecting tank, 23, a sediment discharge valve, 24, a floating oil discharge valve, 25, a floating oil and sediment collecting box, 26, a high liquid level switch, 27, a low liquid level switch, 28, a lifting pump, 29, an overflow alarm, 30, a cavity, 31, an oil absorption control valve, 32, a concentration regulator, 33, a water pipe connector, 34, a concentrated liquid pipe flange, 35, a concentrated liquid suction pipe, 36, an overflow valve, 37 and a bent pipe connector, 38. hose clamp 39, oil liquid outlet pipe

Detailed Description

Examples

As shown in fig. 1, an oil centralized treatment system comprises an oil pumping station, a paper tape type filtering device 2, an oil collecting box 3, a UV sterilizing device 4, a three-phase separating device 5, a liquid purifying box 6, a liquid supplying device, an online monitoring device, a control system, a pipeline and an automatic liquid supplementing device; the oil pumping station comprises a centrifugal pump, a liquid level control device and a ball valve, oil is pumped from the machine tool 1 to the paper tape type filtering device 2 by the oil pumping station, the oil enters the oil collecting box 3 after being filtered by the paper tape type filtering device 2, the liquid level control device is arranged in the oil collecting box 3, the oil collecting box 3 is communicated with the UV sterilizing device 4 through a pipeline, and microorganisms in the wastewater are sterilized through UV ultraviolet rays; the UV sterilization device 4 is communicated with the three-phase separation device 5 through a pipeline, sterilized oil enters the three-phase separation device 5, and floating oil in the oil is separated in a physical mode; the three-phase separation device 5 is communicated with the liquid purifying tank 6 through a pipeline, an online monitoring device is arranged on the liquid purifying tank 6, a liquid supply device is arranged in the liquid purifying tank 6, the liquid supply device supplies oil in the liquid purifying tank 6 to the outside, the liquid purifying tank 6 is communicated with the automatic liquid supplementing device through a pipeline, and the automatic liquid supplementing device supplements mixed liquid of a water source 9 and concentrated oil 8 into the liquid purifying tank 6; the control system comprises a Siemens PLC and a touch screen and is used for controlling and displaying the working state of each device in the processing system.

In an alternative embodiment, the oil pumping station is connected to the oil system of the machine tool 1, the clean oil tank 6 is connected to the oil collection tank 3 and the oil system of the machine tool 1, the oil in the clean oil tank 6 can be recirculated to the oil collection tank for further treatment, and the oil in the clean oil tank 6 can be supplied to the oil system of the machine tool 1.

In an alternative embodiment, as shown in fig. 2, the paper tape type filtering device comprises filtering paper 10, a water inlet groove 15, a driving device 16, a feed liquid level switch 11, a carrying belt 17, a filtering bin 12 and a dirt collecting tank 18, the filtered oil enters the oil collecting tank 3, a liquid level measuring instrument 13 and a feed pump 14 are arranged at one end of the top of the oil collecting tank 3, and the oil is supplied to the UV sterilizing device 4 through the feed pump 14.

In an alternative embodiment, as shown in FIG. 3, the three-phase separation device comprises a feed pump 19, a regulating valve 20, a chamber 30, a baffle collision module 21, an oil sump 22, an overflow alarm 29, a high level switch 26, a low level switch 27, a lift pump 28, a sediment discharge valve 23, a floating oil discharge valve 24, and a floating oil and sediment collection tank 25; wherein, feed pump 19 and governing valve 20 set gradually in the pipeline of device entry, baffling collision subassembly 21 sets up at the cavity 30 middle part, oil trap 22 sets up the top partially at baffling subassembly 21 rear portion, overflow alarm 29 sets up at cavity 30 afterbody top, high liquid level switch 26 and low liquid level switch 27 set gradually on cavity 30 exit wall, elevator pump 28 sets up at cavity 30 exit, sediment discharge valve 23 sets up in cavity 30 bottom, oil slick discharge valve 24 sets up the pipeline bottom with oil trap 22 intercommunication, sediment discharge valve 23 and oil slick discharge valve 24 all with the pipe connection at oil slick and sediment collecting box 25 top. Wherein, the baffling collision component 21 is composed of more than 2 baffling collision pendants, each baffling collision pendant comprises a hanging rod and collision pieces stacked on the hanging rod, each collision piece is two sections of metal pieces which are inclined downwards, and the number of the collision pieces is 10-30

In an alternative embodiment, the liquid supply means comprises a feed pump and a level measuring device, which are arranged at one end of the top of the clean tank.

In an alternative embodiment, as shown in fig. 4, the automatic fluid infusion apparatus includes a fluid mixer 7, the fluid mixer 7 includes a water source control valve 31, a water pipe connector 33, an oil suction pipe flange 34, a concentrate suction pipe 35, an overflow valve 36, an elbow joint 37, a hose clamp 38, and an oil outlet pipe 39; the liquid mixer is connected with a water source 9 through a water pipe connector 33 and is connected with concentrated oil liquid 8 through a concentrated liquid absorption pipe 35, and oil and/or water are supplied to the liquid purifying tank 6.

Optionally, the automatic fluid infusion device further includes a concentration regulator 32, which can adjust the ratio of the concentrated oil fluid 8 to water, so as to adjust the mixed liquid in the required mixing ratio, and further precisely adjust the state of the oil fluid in the clean fluid tank.

In an alternative embodiment, the on-line monitoring device comprises a lift pump, a monitoring pipeline, and a pH monitor, a temperature monitor, a conductivity monitor and a concentration monitor which are arranged in the pipeline, wherein the lift pump lifts oil in the clean liquid tank 6 into the pipeline, and the oil circulates back to the clean liquid tank 6 after flowing through each monitor.

In an alternative embodiment, the oil is a machine emulsion.

The method for performing oil centralized treatment by adopting the oil centralized treatment system comprises the following steps:

s1, pumping oil in the machine tool 1 to the paper tape type filtering device 2 through an oil pumping station;

s2, filtering the oil through the paper tape type filter device 2, and enabling the filtered oil to enter the oil collection box 3;

s3, enabling oil in the oil collecting box 3 to enter a UV sterilizing device 4, and sterilizing microorganisms in the wastewater through UV rays;

s4, the oil liquid after being sterilized in the UV sterilization device 4 enters a three-phase separation device 5, and floating oil in the oil liquid is separated in a physical mode to remove the floating oil and sediment;

s5, enabling the oil liquid separated in the three-phase separation device 5 to enter a liquid purification box 6, and enabling the oil liquid in the liquid purification box 6 to enter a monitoring pipeline through a lift pump to monitor the oil liquid; the pH, the temperature, the conductivity, the concentration and the flow monitoring of the oil are displayed in real time through a display screen of a control system;

s6, selecting needed oil and/or water according to the monitored information, optionally, independently replenishing the oil or the water through a liquid mixer 7, wherein the needed concentrated oil quantity is selected according to the concentration requirement, and the needed water quantity is selected according to the oil liquid level in a clean liquid tank or a machine tool;

or, optionally, selecting the oil-water ratio required to be mixed according to the monitored information, mixing the concentrated oil liquid 8 and the water in proportion through the liquid mixer 7, wherein the mixing proportion of the concentrated oil liquid 8 is 0-20% by volume, and outputting the oil liquid through the liquid supply device after the monitoring reaches the standard.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An oil centralized treatment system comprises an oil pumping station, a paper tape type filtering device, an oil collecting box, a UV sterilizing device, a three-phase separating device, a liquid purifying box, a liquid supplying device, an online monitoring device, a control system, a pipeline and an automatic liquid supplementing device; the oil liquid pumping station pumps oil liquid from the machine tool to the paper tape type filtering device, the oil liquid is filtered by the paper tape type filtering device and then enters the oil liquid collecting box, the liquid level control device is arranged in the oil liquid collecting box, the oil liquid collecting box is communicated with the UV sterilizing device through a pipeline, and microorganisms in the wastewater are sterilized through UV rays; the UV sterilization device is communicated with the three-phase separation device through a pipeline, sterilized oil enters the three-phase separation device, and floating oil in the oil is separated in a physical mode; the three-phase separation device is communicated with a liquid purification box through a pipeline, an online monitoring device is arranged on the liquid purification box, a liquid supply device is arranged in the liquid purification box, the liquid supply device supplies oil liquid in the liquid purification box to the outside, the liquid purification box is communicated with the automatic liquid supplementing device through a pipeline, and the automatic liquid supplementing device supplements mixed liquid of water and concentrated oil liquid into the liquid purification box; the control system comprises a Siemens PLC and a touch screen and is used for controlling and displaying the working state of each device in the processing system.

2. The centralized oil treatment system according to claim 1, wherein the oil pumping station is connected to an oil system of the machine tool, and the clean oil tank is connected to the oil collection tank and the oil system of the machine tool.

3. The oil centralized treatment system according to claim 1, wherein the paper-tape type filtering device comprises filter paper, a water inlet tank, a driving device, a feed level switch, a carrying belt, a filter bin and a dirt collecting box.

4. The centralized oil treatment system according to claim 1, wherein the three-phase separation device comprises a feed pump, a regulating valve, a cavity, a baffling collision component, an oil collecting tank, an overflow alarm, a high liquid level switch, a low liquid level switch, a lift pump, a sediment discharge valve, a floating oil discharge valve and a floating oil and sediment collecting box; wherein, feed pump and governing valve set gradually in the pipeline of device entry, baffling collision subassembly sets up at the cavity middle part, the oil trap sets up the top partially at baffling subassembly rear portion, the overflow alarm sets up on cavity afterbody top, high liquid level switch and low liquid level switch set gradually on cavity export wall, the elevator pump sets up in the cavity exit, the precipitate blow-off valve sets up in the cavity bottom, the setting of oil slick blow-off valve is in the pipeline bottom with the oil trap intercommunication, precipitate blow-off valve and oil slick blow-off valve all with the pipe connection at oil slick and precipitate collection tank top.

5. The centralized oil treatment system according to claim 1, wherein the liquid supply device comprises a supply pump and a liquid level measuring device, and the supply pump and the liquid level measuring device are arranged at one end of the top of the clean liquid tank.

6. The centralized oil treatment system according to claim 1, wherein the automatic liquid feeding device comprises a liquid mixer, the liquid mixer comprises a water source control valve, a water pipe connector, an oil suction pipe flange, a concentrated liquid suction pipe, an overflow valve, an elbow joint, a hose clamp and an oil outlet pipe; the liquid mixer is connected with a water source through a water pipe connector and is connected with an oil liquid concentrated liquid tank through a concentrated liquid absorption pipe, and oil and/or water are supplied to the liquid purifying tank.

7. The centralized oil treatment system according to claim 1, wherein the on-line monitoring device comprises a lift pump, a monitoring pipeline, and a pH monitor, a temperature monitor, a conductivity monitor and a concentration monitor which are arranged in the pipeline, the lift pump lifts oil in the clean tank into the pipeline, and the oil circulates back to the clean tank after passing through the monitors.

8. The centralized oil treatment system according to claim 1, wherein the oil is machine emulsion.

9. The method for oil centralized treatment by using the oil centralized treatment system according to any one of claims 1 to 8, comprising the steps of:

s1, pumping oil in the machine tool to the paper tape type filtering device through an oil pumping station;

s2, filtering the oil through a paper tape type filter device, and enabling the filtered oil to enter an oil collecting box;

s3, enabling oil in the oil collecting box to enter a UV sterilization device, and sterilizing microorganisms in the wastewater through UV rays;

s4, enabling the oil liquid after being sterilized in the UV sterilization device to enter a three-phase separation device, and separating floating oil in the oil liquid in a physical mode to remove the floating oil and sediments;

s5, enabling the oil liquid after separation in the three-phase separation device to enter a liquid purification box, and enabling the oil liquid in the liquid purification box to enter a monitoring pipeline through a lift pump to monitor the oil liquid;

and S6, outputting the oil liquid through the liquid supply device after the monitoring reaches the standard.

10. The method as claimed in claim 9, wherein in step S5, the oil pH, temperature, conductivity, concentration and flow monitoring are displayed in real time through a display screen of the control system; preferably, in step S6, oil and/or water to be supplemented is selected according to the monitored information, and the concentrate oil and/or water is supplemented to the net liquid tank through the liquid mixer.

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