CN220609475U - Water-based cutting fluid filtering and oil removing device - Google Patents

Abstract

The utility model provides a water-based cutting fluid filtering and degreasing device which comprises a cutting fluid tank and a pump, wherein a first impurity filter is arranged at the bottom of the cutting fluid tank, the first impurity filter is connected with a second impurity filter after passing through the pump, the filtering precision of the second impurity filter is larger than that of the first impurity filter, an outlet of the second impurity filter is communicated with an inlet of a separation filter, an oil outlet and a cutting fluid outlet are respectively arranged at the top and the bottom of the separation filter, the oil outlet is communicated with an oil collecting tank after passing through an oil filter, and the cutting fluid outlet is communicated with the cutting fluid tank after passing through the cutting fluid filter. The utility model has compact structure and small occupied area, and has good filtering and separating effects after being filtered by the oil-water separation filter element, the single-pass oil guide filter element and the single-pass water guide filter element, and the quality of the chip liquid is not affected after the chip liquid is processed, and the lubricating performance is unchanged.

Description

Water-based cutting fluid filtering and oil removing device

Technical Field

The utility model relates to a cutting fluid filtering technology, in particular to a water-based cutting fluid filtering and deoiling device.

Background

In the machining process, the cutting fluid is mixed with impurities such as metal powder scraps, lubricating oil, rust preventive oil and the like, the impurities and the oil slick can promote bacterial reproduction, the deterioration of the cutting fluid is accelerated, the cutting fluid is difficult to recycle, and the production cost is increased. The traditional cutting fluid filtering device can only remove solid impurities such as metal or nonmetal powder scraps generally, and has single function; the existing cutting fluid purifying equipment capable of removing oil uses centrifugal, air floatation, scraping plates and other modes to remove oil, so that the equipment is poor in oil removing effect, large in equipment size, high in energy consumption, high in failure rate and low in automation degree. The cutting fluid includes a water-based cutting fluid which becomes an oil-in-water emulsion in water, i.e., the water-based cutting fluid is soluble in water and has properties similar to those of water.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a water-based cutting fluid filtering and degreasing device, which aims to set classification filtering for cutting fluid and finally obtain pure oil and regenerated cutting fluid.

The water-based cutting fluid filtering and degreasing device comprises a cutting fluid tank and a pump, wherein a first impurity filter is arranged at the bottom of the cutting fluid tank, the first impurity filter is connected with a second impurity filter after passing through the pump, the filtering precision of the second impurity filter is larger than that of the first impurity filter, the outlet of the second impurity filter is communicated with the inlet of a separation filter, an oil outlet and a cutting fluid outlet are respectively arranged at the top and the bottom of the separation filter, the oil outlet is communicated with an oil collecting tank after passing through an oil filter, and the cutting fluid outlet is communicated with the cutting fluid tank after passing through the cutting fluid filter; the oil-water separation filter is characterized in that an oil-water separation filter core is arranged in the separation filter, a single-pass oil guide filter core is arranged in the oil filter, a single-pass water guide filter core is arranged in the cutting fluid filter, the oil-water separation filter core is an inner inlet and outlet type filter core, and the single-pass oil guide filter core and the single-pass water guide filter core are both outer inlet and inner outlet type filter cores.

The method further comprises the following steps: the separation filter is positioned at a height lower than the oil filter and higher than the cutting fluid filter.

The method further comprises the following steps: the oil liquid interface instrument for monitoring the height of an oil liquid interface in the separating filter is arranged on the separating filter, a first electric control valve and a second electric control valve are respectively arranged at the oil liquid outlet and the cutting liquid outlet, and the oil liquid interface instrument, the first electric control valve, the second electric control valve and the pump are all connected with the controller.

The method further comprises the following steps: the bottoms of the separation filter, the oil-water separation filter element and the cutting fluid filter are respectively provided with a liquid outlet, and a liquid outlet valve is arranged on the liquid outlet.

The method further comprises the following steps: the single-pass oil guide filter element comprises a first inner framework with a hole structure, wherein the first inner framework encloses a first cavity, an oil outlet is arranged in the first cavity and communicated with an oil collecting tank after passing through a pipeline, and a first inner lipophilic layer, a first hydrophobic layer and a first outer lipophilic layer are sequentially attached to the first inner framework from inside to outside.

The method further comprises the following steps: the first inner lipophilic layer and the first outer lipophilic layer are both made of surface impregnation lipophilic modified polyester materials, and the first hydrophobic layer is made of surface impregnation hydrophobic modified polyester materials.

The method further comprises the following steps: the single-pass water guide filter element comprises a second inner framework with a hole structure, a second cavity is formed by encircling the second inner framework, a liquid outlet is formed in the second cavity, the liquid outlet is communicated with the cutting liquid groove after passing through a pipeline, and a second inner hydrophilic layer, a second oleophobic layer and a second outer hydrophilic layer are sequentially attached to the second inner framework from inside to outside.

The method further comprises the following steps: the second inner hydrophilic layer and the second outer hydrophilic layer are both made of surface-impregnated hydrophilic modified polyester materials, and the second oleophobic layer is made of surface-impregnated oleophobic modified polyester materials.

The method further comprises the following steps: the oil-water separation filter element comprises a third inner framework and a third outer framework, wherein the third inner framework is provided with a third cavity, the third cavity is provided with a liquid inlet, the liquid inlet is communicated with an outlet of the second impurity filter after passing through an inlet of the separation filter, and a third lipophilic layer, a third hydrophilic layer, a third hydrophobic layer, a third oleophobic layer and a third outer framework are sequentially attached to the third inner framework from inside to outside.

The method further comprises the following steps: the third hydrophilic layer is made of surface-impregnated hydrophilically-modified polyester materials; the third hydrophobic layer is made of surface-impregnated oleophobic modified polyester materials, and the third hydrophobic layer is made of surface-impregnated hydrophobically modified polyester materials.

The utility model has the beneficial effects that: the utility model has compact structure and small occupied area, and has good filtering and separating effects after being filtered by the oil-water separation filter element, the single-pass oil guide filter element and the single-pass water guide filter element, and the quality of the chip liquid is not affected after the chip liquid is processed, and the lubricating performance is unchanged.

Drawings

FIG. 1 is a connection block diagram of the present utility model;

FIG. 2 is a schematic structural view of a single-pass oil-guiding filter element in the utility model;

FIG. 3 is a schematic structural view of a single pass water guide filter element of the present utility model;

fig. 4 is a schematic structural view of the oil-water separation filter element in the present utility model.

1, a first impurity filter; 2. a flow regulating valve; 3. a pump; 4. a flow meter; 5. a liquid discharge valve; 6. a second impurity filter; 61. an impurity filtering filter element; 7. a separation filter; 71. an oil-water separation filter element; 8. a cutting fluid filter; 81. a single pass water guide filter element; 9. an oil filter; 91. a single pass oil guide filter element; 10. a controller; 11. an oil collecting tank; 12. a cutting fluid bath; 101. an oil interface instrument; 102. a second electrically controlled valve; 103. a first electrically controlled valve; 1a, a first connecting end cap; 11a, a first connecting pipe joint; 2a, a first plugging end cover; 3a, a first inner skeleton; 41a, a first inner oleophilic layer; 42a, a first outer oleophilic layer; 5a, a first hydrophobic layer; 1b, a second connecting end cover; 11b, a second connecting pipe joint; 2b, a second plugging end cover; 3b, a second inner framework; 41b, a second inner hydrophilic layer; 42b, a second outer hydrophilic layer; 5b, a second oleophobic layer; 1c, a third connecting end cover; 11c, a third connecting pipe joint; 2c, a third plugging end cover; 3c, a third inner skeleton; 4c, a third exoskeleton; 5c, a third lipophilic layer; 6c, a third hydrophilic layer; 7c, a third hydrophobic layer; 8c, a third oleophobic layer.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings. Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. The terms left, middle, right, upper, lower, etc. in the embodiments of the present utility model are merely relative concepts or references to the normal use state of the product, and should not be construed as limiting.

The water-based cutting fluid filtering and degreasing device comprises a cutting fluid tank 12 and a pump 3, wherein a first impurity filter 1 is arranged at the bottom of the cutting fluid tank 12, the first impurity filter 1 is connected with a second impurity filter 6 after passing through a flow regulating valve 2, the pump 3 and a flow meter 4 in sequence, an impurity filtering core 61 with an outer inlet and an inner outlet is arranged in the second impurity filter 6, the filtering precision of the second impurity filter 6 is higher than that of the first impurity filter 1, the outlet of the second impurity filter 6 is communicated with the inlet of a separation filter 7, the top and the bottom of the separation filter 7 are respectively provided with an oil outlet and a cutting fluid outlet, the oil outlet is communicated with an oil collecting tank 11 after passing through an oil filter 9, and the cutting fluid outlet is communicated with the cutting fluid tank 12 after passing through the cutting fluid filter 8; the oil-water separation filter 7 is internally provided with an oil-water separation filter core 71, the oil filter 9 is internally provided with a single-pass oil guide filter core 91, the cutting fluid filter 8 is internally provided with a single-pass water guide filter core 81, the oil-water separation filter core 71 is an inner inlet-outlet type filter core, the single-pass oil guide filter core 91 and the single-pass water guide filter core 81 are both outer inlet-outlet type filter cores, and the position height of the separation filter 7 is lower than the oil filter 9 and higher than the cutting fluid filter 8. An oil interface instrument 101 for monitoring the height of an oil interface in the separation filter 7 is arranged on the separation filter, a first electric control valve 103 and a second electric control valve 102 are respectively arranged at the oil outlet and the cutting fluid outlet, and the oil interface instrument, the first electric control valve 103, the second electric control valve 102 and the pump 3 are all connected with the controller 10. Drain ports are provided at the bottoms of the separation filter 7, the oil-water separation filter element 71 and the cutting fluid filter 8, and drain valves 5 are installed on the drain ports.

Referring to fig. 2, the single-pass oil-guiding filter element 91 includes a first inner skeleton 3a with a hole structure, the first inner skeleton 3a encloses a first cavity, the first cavity is provided with an oil outlet, a first inner lipophilic layer 41a, a first hydrophobic layer 5a and a first outer lipophilic layer 42a are sequentially attached to the first inner skeleton 3a from inside to outside, and the oil outlet is communicated with the oil collecting tank 11 after passing through a pipeline; the first cavity is in a strip shape, a first connecting end cover 1a and a first plugging end cover 2a are respectively arranged at two ends of the first cavity, the first inner skeleton 3a, the first inner lipophilic layer 41a, the first hydrophobic layer 5a and the first outer lipophilic layer 42a are all positioned between the first connecting end cover 1a and the first plugging end cover 2a and are in sealing and fixed connection with the first connecting end cover 1a and the first plugging end cover 2a, a first connecting pipe joint 11a is fixedly connected in a sealing manner at the middle part of the first connecting end cover 1a, the inner end of the first connecting pipe joint 11a is communicated with the first cavity, the inner end port of the first connecting pipe joint 11a is an oil outlet, and the first cavity is in transverse arrangement; the first inner lipophilic layer 41a and the first outer lipophilic layer 42a are both made of surface-impregnated oleophilic modified polyester materials, and the first hydrophobic layer 5a is made of surface-impregnated hydrophobically modified polyester materials. The first inner framework 3a is of a cylindrical structure, and the first inner framework 3a is made of a punching plate. The outer lipophilic layer of the single-pass oil guide filter element 91 adsorbs oily components around the filter element, the oily components move into the filter material under the action of external pressure, the water-based cutting fluid components carried on the oily components are intercepted by the hydrophobic layer, so that the water-based cutting fluid components cannot move into the filter material under the set pressure, the inner lipophilic layer adsorbs the oily components passing through the hydrophobic layer, and when the oily components of the inner lipophilic layer reach saturation, the oily components flow into the cavity through holes on the inner framework and are guided out from the oil outlet, so that the filtering effect of the oily components is improved.

Referring to fig. 3, the single-pass water-guiding filter element 81 includes a second inner frame 3b with a hole structure, the second inner frame 3b encloses a second cavity, the second cavity is provided with a liquid outlet, and a second inner hydrophilic layer 41b, a second oleophobic layer 5b and a second outer hydrophilic layer 42b are sequentially attached to the second inner frame 3b from inside to outside. The second cavity is in a strip shape, a second connecting end cover 1b and a second plugging end cover 2b are respectively arranged at two ends of the second cavity, the second inner framework 3b, the second inner hydrophilic layer 41b, the second oleophobic layer 5b and the second outer hydrophilic layer 42b are all positioned between the second connecting end cover 1b and the second plugging end cover 2b and are fixedly connected with the second connecting end cover 1b and the second plugging end cover 2b in a sealing manner, a second connecting pipe joint 11b is fixedly connected in the middle of the second connecting end cover 1b in a sealing manner, the inner end of the second connecting pipe joint 11b is communicated with the second cavity, the inner end port of the second connecting pipe joint 11b is a liquid outlet, the second cavity is transversely arranged, and the liquid outlet is communicated with the cutting liquid groove 12 after passing through a pipeline. The second inner hydrophilic layer 41b and the second outer hydrophilic layer 42b are both made of surface-impregnated hydrophilically modified polyester materials, and the second oleophobic layer 5b is made of surface-impregnated oleophobic modified polyester materials. The second inner frame 3b has a cylindrical structure. The second inner frame 3b is made of a punching plate. The outer hydrophilic layer of the single-pass water guide filter element 81 adsorbs water-based cutting fluid components around the water-based cutting fluid components, the water-based cutting fluid components move into the filter material under the action of external pressure, the oleophobic layer intercepts oily components carried in water, so that the oily components cannot move into the filter material under the set pressure, the inner hydrophilic layer adsorbs the water-based cutting fluid components passing through the oleophobic layer, and when the water-based cutting fluid components of the inner hydrophilic layer reach saturation, the water-based cutting fluid components flow into the cavity through holes on the inner framework and are led out from the water outlet, so that the filtering effect of the water-based cutting fluid components is improved.

Referring to fig. 4, the oil-water separation filter 71 includes a third inner frame 3c and a third outer frame 4c with a hole structure, the third inner frame 3c encloses a third cavity, the third cavity is provided with a liquid inlet, and a third lipophilic layer 5c, a third hydrophilic layer 6c, a third hydrophobic layer 7c, a third hydrophobic layer 8c and a third outer frame 4c are sequentially attached to the third inner frame 3c from inside to outside. The third cavity is in a long strip shape, a third connecting end cover 1c and a third plugging end cover 2c are respectively arranged at two ends of the third cavity, a third inner framework 3c, a third lipophilic layer 5c, a third hydrophilic layer 6c, a third hydrophobic layer 7c, a third hydrophobic layer 8c and a third outer framework 4c are all positioned between the third connecting end cover 1c and the third plugging end cover 2c and are in sealing and fixed connection with the third connecting end cover 1c and the third plugging end cover 2c, a third connecting pipe joint 11c is fixedly connected to the middle part of the third connecting end cover 2c in a sealing manner, the inner end of the third connecting pipe joint 11c is communicated with the third cavity, the inner end port of the third connecting pipe joint 11c is a liquid inlet, the liquid inlet is communicated with the outlet of the second impurity filter 6 after passing through the inlet of the separation filter 7, and the third cavity is in a transverse arrangement. The third lipophilic layer 6c is made of polyester materials with surface impregnated with hydrophilic modification, and the third hydrophilic layer 6c is made of polyester materials with surface impregnated with hydrophilic modification; the third hydrophobic layer 8c is made of surface-impregnated oleophobic modified polyester material, and the third hydrophobic layer 7c is made of surface-impregnated hydrophobically modified polyester material. The third inner skeleton 3c and the third outer skeleton 4c are both cylindrical structures. The third inner skeleton 3c and the third outer skeleton 4c are made of punching plates. Under the action of pressure, the mixture or emulsion of the water-based cutting fluid and the oil moves from inside to outside, and the lipophilic layer adsorbs and coalesces the surrounding oily components, so that the water-based cutting fluid particles contained in the oil are separated from the oily components; the hydrophilic layer adsorbs and coalesces the water-based cutting fluid components around the hydrophilic layer, so that small oily particles contained in the water-based cutting fluid are separated from the water-based cutting fluid; the separated oil particles and the water-based cutting fluid particles continue to move outwards under the action of pressure; the hydrophobic layer intercepts oily components and is divided into water-based cutting fluid particles carried in the water and gradually grows up and slowly moves outwards, and the hydrophobic layer intercepts oily substance particles carried in the water and gradually grows up and slowly moves outwards; in this way, different substances are separated and coalesced in the hydrophilic layer and the lipophilic layer, and the free water-based cutting fluid and oil are released into the container through the outer skeleton after being adsorbed and saturated in the hydrophobic layer and the hydrophobic layer.

The working principle of the utility model is as follows: the pump 3 injects the stock solution of the cutting fluid which is primarily filtered by the first impurity filter 1 into the second impurity filter 6 through a pipeline for fine filtration, and after removing the dirt such as small-particle cuttings, dust and the like in the cutting fluid, the stock solution of the cutting fluid is separated from the water-based cutting fluid and forms layering after passing through the oil-water separation filter element 71 in the separation filter 7. The controller 10 automatically controls the electric control valve and the switch of the electric control valve according to the position of the oil interface, so that oil enters the oil filter 9, and the micro cutting fluid contained in the oil is filtered out through the single-pass oil guide filter element 91 to obtain pure oil, and the micro cutting fluid returns to the separation filter 7 through dead weight; simultaneously, the water-based cutting fluid enters the cutting fluid filter 8, the single-pass water guide filter element 81 separates out trace oil in the cutting fluid, and the oil rises into the separator by self weight. Pure water-based cutting fluid is discharged through a liquid outlet pipe of an outlet of the cutting fluid filter 8 for a machine tool. The flow rate of the water-based cutting fluid can be regulated by the flow regulating valve 2 and also can be regulated by the frequency of the pump 3, and all automatic control is realized by the controller 10.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a water-based cutting fluid filters deoiling device, includes cutting cistern and pump cutting cistern bottom is provided with first impurity filter, first impurity filter is connected with second impurity filter after the pump, second impurity filter's filtration precision is greater than first impurity filter, second impurity filter's export is linked together its characterized in that with separation filter's import: the top and the bottom of the separation filter are respectively provided with an oil outlet and a cutting fluid outlet, the oil outlet is communicated with the oil collecting tank after passing through the oil filter, and the cutting fluid outlet is communicated with the cutting fluid tank after passing through the cutting fluid filter; the oil-water separation filter is characterized in that an oil-water separation filter core is arranged in the separation filter, a single-pass oil guide filter core is arranged in the oil filter, a single-pass water guide filter core is arranged in the cutting fluid filter, the oil-water separation filter core is an inner inlet and outlet type filter core, and the single-pass oil guide filter core and the single-pass water guide filter core are both outer inlet and inner outlet type filter cores.

2. The water-based cutting fluid filtering and degreasing device according to claim 1, wherein: the separation filter is positioned at a height lower than the oil filter and higher than the cutting fluid filter.

3. The water-based cutting fluid filtering and degreasing device according to claim 1, wherein: the oil liquid interface instrument for monitoring the height of an oil liquid interface in the separating filter is arranged on the separating filter, a first electric control valve and a second electric control valve are respectively arranged at the oil liquid outlet and the cutting liquid outlet, and the oil liquid interface instrument, the first electric control valve, the second electric control valve and the pump are all connected with the controller.

4. The water-based cutting fluid filtering and degreasing device according to claim 1, wherein: the bottoms of the separation filter, the oil-water separation filter element and the cutting fluid filter are respectively provided with a liquid outlet, and a liquid outlet valve is arranged on the liquid outlet.

5. The water-based cutting fluid filtering and degreasing device according to claim 1, wherein: the single-pass oil guide filter element comprises a first inner framework with a hole structure, wherein the first inner framework encloses a first cavity, an oil outlet is arranged in the first cavity and communicated with an oil collecting tank after passing through a pipeline, and a first inner lipophilic layer, a first hydrophobic layer and a first outer lipophilic layer are sequentially attached to the first inner framework from inside to outside.

6. The water-based cutting fluid filtering and oil removing device according to claim 5, wherein: the first inner lipophilic layer and the first outer lipophilic layer are both made of surface impregnation lipophilic modified polyester materials, and the first hydrophobic layer is made of surface impregnation hydrophobic modified polyester materials.

7. The water-based cutting fluid filtering and degreasing device according to claim 1, wherein: the single-pass water guide filter element comprises a second inner framework with a hole structure, a second cavity is formed by encircling the second inner framework, a liquid outlet is formed in the second cavity, the liquid outlet is communicated with the cutting liquid groove after passing through a pipeline, and a second inner hydrophilic layer, a second oleophobic layer and a second outer hydrophilic layer are sequentially attached to the second inner framework from inside to outside.

8. The water-based cutting fluid filtering and degreasing device as claimed in claim 7, wherein: the second inner hydrophilic layer and the second outer hydrophilic layer are both made of surface-impregnated hydrophilic modified polyester materials, and the second oleophobic layer is made of surface-impregnated oleophobic modified polyester materials.

9. The water-based cutting fluid filtering and degreasing device according to claim 1, wherein: the oil-water separation filter element comprises a third inner framework and a third outer framework, wherein the third inner framework is provided with a third cavity, the third cavity is provided with a liquid inlet, the liquid inlet is communicated with an outlet of the second impurity filter after passing through an inlet of the separation filter, and a third lipophilic layer, a third hydrophilic layer, a third hydrophobic layer, a third oleophobic layer and a third outer framework are sequentially attached to the third inner framework from inside to outside.

10. The water-based cutting fluid filtering and degreasing device as claimed in claim 9, wherein: the third hydrophilic layer is made of surface-impregnated hydrophilically-modified polyester materials; the third hydrophobic layer is made of surface-impregnated oleophobic modified polyester materials, and the third hydrophobic layer is made of surface-impregnated hydrophobically modified polyester materials.