Cooling liquid filter

Abstract

The cooling liquid filter comprises an oil tank, a filter assembly, a slag scraper, an oil conveying pipeline and an air conveying pipeline, the slag scraper comprises a first machine box, a first slag discharging opening is formed in one end of the top of the first machine box, and a conveying chain extending from the bottom of the first machine box to the slag discharging opening is arranged in the first machine box. A plurality of slag scraping plates are arranged on the conveying chain; the oil tank is divided into a clean oil tank and a dirty oil tank by a partition plate, an oil inlet hole is formed in the dirty oil tank, the oil conveying pipeline comprises a dirty oil pipe for conveying dirty oil to the dirty oil tank through the oil inlet hole, and a metal scrap filtering device is arranged at the oil inlet hole. The utility model has the beneficial effects that the integral layout is reasonable, the structure is compact, the slag scraper and the magnetic separator can be combined for use, the slag discharge ports are consistent, and the use of a plurality of slag buckets is avoided so as to save space; the rotatable slag discharging plate is arranged, so that the slag discharging opening is convenient to overhaul and clean; a net bag filtering device can be used for replacing a magnetic separator to meet different requirements; and the cooler is slidably arranged, so that maintenance and observation are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a coolant filter. Background Art

[0002] In the field of mechanical processing, a large number of processing equipment such as milling machines, drilling machines and grinders need to use coolant during processing, either oily or water-based coolant, to cool the cutter head, grinding head, etc. to ensure their hardness. The recycled coolant is high temperature and mixed with a large amount of metal debris. How to filter and reuse the recycled coolant is a technical problem that the inventor has been studying. In the previous application 2022102074339, the applicant provided a solution with functions such as metal magnetic adsorption, oil filtration, filter backflushing and scraping. While meeting the filtration requirements, it can also be self-cleaning, thereby greatly improving the ease of use and service life. On this basis, the applicant hopes to further research and develop to achieve miniaturization of the overall device, a more compact structure, better filtration effect, and a wider range of application scenarios. Utility Model Content

[0003] The purpose of the utility model is to provide a coolant filter that solves the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A coolant filter comprises an oil tank, a filter assembly, a scraper, an oil pipeline and an air pipeline, the scraper comprising a first chassis, a first slag discharge port being provided at one end of the top of the first chassis, a conveying chain being provided in the first chassis extending from the bottom of the first chassis to the slag discharge port, and a plurality of scraping plates being provided on the conveying chain; the oil tank is divided into a clean oil tank and a dirty oil tank by a partition, an oil inlet being provided on the dirty oil tank, the oil pipeline comprising a dirty oil pipe conveying dirty oil to the dirty oil tank through the oil inlet, and a metal debris filtering device being provided at the oil inlet.

[0006] Preferably, the metal debris filtering device is a magnetic separator, which includes a second chassis, an opening connected to the oil inlet is provided at the bottom of the second chassis; a second slag discharge port is provided on the second chassis; a magnetic roller and a motor for driving the magnetic roller to rotate are provided in the second chassis, magnetic material is provided in the magnetic roller, and a scraper is also provided on the magnetic roller to abut against the magnetic roller.

[0007] Preferably, the filter assembly is arranged on one side of the top of the oil tank, the scraper is arranged on the other side of the top of the oil tank, the magnetic separator is arranged below the first slag discharge port, and the first slag discharge port and the second slag discharge port are arranged in the same direction.

[0008] Preferably, the metal debris filtering device comprises a net bag filtering device which is replaceably arranged at the oil inlet to close the oil inlet; the net bag filtering device comprises a frame on which at least one net bag is arranged.

[0009] Preferably, a slag discharge plate is provided on the first slag discharge port at an outward tilt, and the slag discharge plate includes a connecting port that matches the shape of the first slag discharge port, one end of the connecting port is pivotally connected to one side of the first slag discharge port, and the other end of the connecting port is connected to the other side of the first slag discharge port through a snap.

[0010] Preferably, the filter assembly includes one or more filter tanks, each of which includes an oil inlet and an oil outlet, at least one dirty oil pump is connected to the oil inlets and dirty oil tanks of all the filter tanks through the oil pipeline, and the oil outlets of all the filter tanks are connected to the clean oil tank through the oil pipeline, and baffles are provided around the filter assembly.

[0011] Preferably, a cooler is slidably provided on the baffle, and at least one oil clean pump is connected to the cooler and the oil clean tank via the oil delivery pipeline.

[0012] The beneficial effects of the utility model are: the overall layout is reasonable and the structure is compact, the scraper and the magnetic separator can be used in combination, the slag discharge port is consistent, and the use of multiple slag buckets is avoided to save space; a rotatable slag discharge plate is provided to facilitate the inspection and cleaning of the slag discharge port; a net bag filter device can also be used to replace the magnetic separator to meet different needs; the cooler can be slidably arranged to facilitate inspection and observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 It is a structural diagram of a scraper;

[0016] Figure 4 is a schematic diagram of the three-dimensional structure of the metal debris filtering device of Example 1;

[0017] Figure 5 It is a schematic diagram of the principle structure of the metal debris filtering device of Example 1. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "inside", "outside", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figures 1 to 5 As shown, a coolant filter of the present invention includes an oil tank 10, a filter assembly 12, a scraper 14, an oil pipeline and an air pipeline (not shown).

[0021] Among them, the scraper 14 includes a first chassis 18, a first slag discharge port 20 is set at one end of the top of the first chassis 18, a conveying chain 22 extending from the bottom of the first chassis 18 to the slag discharge port is set in the first chassis 18, and a number of scraping plates 24 are set on the conveying chain 22; the oil tank 10 is divided into a clean oil tank and a dirty oil tank (not marked) by a partition, and an oil inlet is opened on the dirty oil tank. The oil pipeline includes a dirty oil pipe 16 that transports dirty oil to the dirty oil tank through the oil inlet, and a metal debris filtering device is provided at the oil inlet.

[0022] In the first embodiment, the metal debris filtering device is a magnetic separator 26. The magnetic separator 26 includes a second housing 28 with an opening at the bottom thereof connected to the oil inlet; a second slag discharge port 30 is provided on the second housing 28; a magnetic roller 32 and a motor 34 are mounted within the second housing 28 to drive the magnetic roller 32. The magnetic roller 32 is filled with magnetic material (not shown) and a scraper 38 is mounted on the magnetic roller 32 to abut against it. The operating principle is that the magnetic roller 32 attracts metal debris, which then rotates and encounters the scraper 38, where it is scraped off the magnetic roller 32 for collection.

[0023] The filter assembly 12 is arranged on one side of the top of the oil tank 10, the scraper 14 is arranged on the other side of the top of the oil tank 10, and the magnetic separator 26 is arranged below the first slag discharge port 20. The first slag discharge port 20 and the second slag discharge port 30 are arranged in the same direction.

[0024] A slag plate 40 is positioned outwardly and tilted above the first slag discharge port 20. The plate 40 includes a connection port that matches the shape of the first slag discharge port 20. One end of the connection port is pivotally connected to one side of the first slag discharge port 20, and the other end is connected to the other side of the first slag discharge port 20 via a buckle (not shown). During maintenance, the buckle can be loosened and the plate 40 can be flipped over to expose the first slag discharge port 20 for easier cleaning or inspection.

[0025] In the second embodiment, the metal debris filtering device includes a mesh bag filter device that is replaceably positioned at the oil inlet to seal the oil inlet. The mesh bag filter device includes a frame with at least one mesh bag mounted thereon. Alternatively, a grid-shaped frame may be used, with multiple mesh bags mounted thereon for combined filtering.

[0026] Furthermore, the filter assembly 12 includes one or more filter tanks (not shown), each filter tank includes an oil inlet and an oil outlet, at least one dirty oil pump is connected to the oil inlets and dirty oil tanks of all filter tanks through an oil pipeline, and the oil outlets of all filter tanks are connected to the clean oil tank through an oil pipeline. For detailed structure, please refer to the applicant's previous case; baffles 42 are provided on all sides of the filter assembly 12.

[0027] A cooler 44 is slidably disposed on the baffle 42 , and at least one oil clean pump is connected to the cooler 44 and the oil clean tank via an oil delivery pipeline.

[0028] Referring to the applicant's previous case, the work of the present invention is divided into filtration and backflushing. Among them, the filtration process is:

[0029] The oil pipeline (the oil pipeline in this utility model refers to the general term for all pipelines that transport coolant between various components) transports the cooling oil (or cooling water) collected at the processing equipment to the magnetic separator 26 of the first embodiment through an oil pump. The oil passes through the conveyor belt (not shown) of the magnetic separator 26 and flows through the magnetic roller 32. The iron chips in the oil are adsorbed on the conveyor belt. The cooling oil flows down from both sides of the conveyor belt and enters the dirty oil tank through the oil inlet hole. The iron chips move with the conveyor belt, away from the adsorption of the magnetic material, and thus detach from the conveyor belt. Even if there are any remaining iron chips, they will be scraped off by the scraper 38 when passing through the scraper 38. The metal chips are then discharged from the second slag discharge port 30 and collected in the collection bucket 46 below.

[0030] Alternatively, the oil pipeline can pump cooling oil (or cooling water) collected from the processing equipment to the net bag filter device of Example 2. Metal debris is filtered by the net bag, and dirty oil enters the dirty oil tank through the oil inlet. The net bag filter device can be cleaned manually on a regular basis.

[0031] Both of the above methods can effectively remove large metal debris from dirty oil before it enters the filter assembly 12, thereby reducing the filtration pressure of the filter assembly 12. A person skilled in the art can implement this method based on the above description and by referring to previous patents without inventive effort, so detailed illustrations are not provided.

[0032] The dirty oil pump delivers the cooled oil in the dirty oil tank to the filter assembly 12 via the oil pipeline. The clean oil obtained after filtration is delivered to the clean oil tank via the oil pipeline. Before being reused, it is first cooled by the cooler 44 and then delivered to various processing equipment by the clean oil pump.

[0033] The backflushing process is as follows: a high-pressure generating device (not shown) blows high-pressure gas into the filter assembly 12 in the reverse direction through the gas pipeline. The high-pressure gas discharges the sludge accumulated inside the filter assembly 12 in the reverse direction through the oil inlet of the filter tank and sends it to the scraper 14. The scraper 38 of the scraper 14 moves in a circular motion to scrape out the viscous residual oil and metal debris settled at the bottom, and discharges them from the first slag discharge port 20 and is also collected by the collection bucket 46 below.

[0034] The utility model readjusts the structure to make the overall structure more compact and occupy less space, meeting the volume requirements of customers; in addition, the design of the slag plate 40 and the movable cooler 44 makes the utility model easy to maintain.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A coolant filter comprising an oil tank, a filter assembly, a scraper, an oil pipeline, and an air pipeline, characterized in that: The scraper includes a first chassis, a first slag discharge port is provided at one end of the top of the first chassis, a conveying chain is provided in the first chassis and extends from the bottom of the first chassis to the slag discharge port, and a plurality of scraping plates are provided on the conveying chain; the oil tank is divided into a clean oil tank and a dirty oil tank by a partition, an oil inlet is provided on the dirty oil tank, the oil pipeline includes a dirty oil pipe that conveys dirty oil to the dirty oil tank through the oil inlet, and a metal debris filtering device is provided at the oil inlet.

2. The coolant filter according to claim 1, characterized in that: The metal debris filtering device is a magnetic separator, which includes a second chassis, an opening connected to the oil inlet is provided at the bottom of the second chassis; a second slag discharge port is provided on the second chassis; a magnetic roller and a motor for driving the magnetic roller to rotate are provided in the second chassis, magnetic material is provided in the magnetic roller, and a scraper is also provided on the magnetic roller to abut against the magnetic roller.

3. The coolant filter according to claim 2, characterized in that: The filter assembly is arranged on one side of the top of the oil tank, the scraper is arranged on the other side of the top of the oil tank, and the magnetic separator is arranged below the first slag discharge port. The first slag discharge port and the second slag discharge port are arranged in the same direction.

4. The coolant filter according to claim 1, characterized in that: The metal debris filtering device comprises a net bag filtering device which is replaceably arranged at the oil inlet to close the oil inlet; the net bag filtering device comprises a frame on which at least one net bag is arranged.

5. The coolant filter according to claim 1, characterized in that: A slag discharge plate is arranged on the first slag discharge port at an outward tilt, and the slag discharge plate includes a connecting port that matches the shape of the first slag discharge port, one end of the connecting port is pivotally connected to one side of the first slag discharge port, and the other end of the connecting port is connected to the other side of the first slag discharge port through a snap.

6. The coolant filter according to claim 1, characterized in that: The filter assembly includes one or more filter tanks, each of which includes an oil inlet and an oil outlet. At least one dirty oil pump is connected to the oil inlets and dirty oil tanks of all the filter tanks through the oil pipeline. The oil outlets of all the filter tanks are connected to the clean oil tank through the oil pipeline. Baffles are provided around the filter assembly.

7. The coolant filter according to claim 6, characterized in that: A cooler is slidably provided on the baffle, and at least one clean oil pump is connected to the cooler and the clean oil tank through the oil delivery pipeline.

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