Floating matter removal device and liquid purification system

Abstract

To provide: a floating matter removal device which can efficiently remove floating matter on a surface of liquid with a simple configuration; and a liquid purification system.SOLUTION: A removal belt 40 comprises: a plurality of wires arranged in parallel with one another; and a pair of flexible frame bodies which hold both ends of the plurality of wires. The removal belt has a configuration capable of bending with the pair of flexible frame bodies. The removal belt 40 has a configuration capable of rotating with a driving roller 30 and a support roller 20 and removing floating matter on a surface of liquid with the floating matter clinging to the plurality of wires.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a floating matter removal device and a liquid purification system for removing floating matter present on the surface of a liquid. [Background technology]

[0002] For example, in a machining device, cutting is performed while cutting fluid is supplied from a supply tank, and the cutting fluid contains fine powder cutting debris. The cutting fluid containing the fine powder cutting debris is supplied to a filter device, which removes the cutting debris and returns the cutting fluid to the supply tank (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-137743 Summary of the Invention [Problem to be solved by the invention]

[0004] In this way, the cutting debris is removed and the cutting fluid is returned to the supply tank, but floating matter floats on the surface of the cutting fluid stored in the supply tank, and this floating matter contains bubbles and cutting debris, which hinders the purification of the cutting fluid.

[0005] In addition, there are some systems that remove cutting debris by using a filter membrane or by sedimentation, but if the floating particles on the surface of the cutting fluid are not removed, the filter membrane may become clogged as the cutting fluid circulates. If the filter membrane becomes clogged, the filter device must first be disassembled and the filter membrane cleaned. This cleaning work, and if the filter membrane becomes unusable, replacement work will be required.

[0006] For example, it is conceivable to use a rotating disk or belt to remove floating matter on the liquid surface by adhering it to the surface of the rotating disk or belt, but it is difficult to efficiently adsorb floating matter to the surface of the rotating disk or belt, and the efficiency of removing floating matter has been low.

[0007] This invention was made in consideration of the above-mentioned situation, and aims to provide a floating matter removal device and liquid purification system that has a simple structure and is capable of efficiently removing floating matter present on the surface of a liquid. [Means for solving the problem]

[0008] In order to solve the above problems and achieve the object, the present invention is configured as follows.

[0009] The invention described in claim 1 comprises a support roller arranged to be in contact with the liquid; a drive roller disposed so as not to come into contact with the liquid; a removal belt wound around the support roller and the drive roller; The removal belt a plurality of wires arranged parallel to one another; a pair of flexible frames that hold both ends of the plurality of wires; The pair of flexible frames are bendable, The removal belt is rotated by the drive roller and the support roller; This is a floating matter removal device characterized in that floating matter present on the surface of the liquid can be removed by adhering to the plurality of wires.

[0010] The invention described in claim 2 is provided with a scraping member, The scraping member is 2. The floating matter removal device according to claim 1, characterized in that the floating matter adhering to the plurality of wires is scraped off and removed.

[0011] The invention described in claim 3 includes a gutter member for collecting floating matter, 3. The floating matter removal device according to claim 1, wherein the gutter member is configured to receive and recover the floating matter removed by the removal belt.

[0012] The invention described in claim 4 includes a supply tank for storing a liquid to be supplied to the device; a circulation supply path that supplies a liquid from the supply tank to the device and sends the liquid used in the device to the supply tank and circulates it for supply; The supply tank A liquid purification system is characterized by being configured to include a fine matter removal device according to any one of claims 1 to 3, and to allow floating matter present on the liquid surface to adhere and be removed.

[0013] The invention described in claim 5 is Circulating supply route Place the centrifuge in the The centrifugal separator is The liquid purification system described in claim 4 is characterized in that it is configured to separate fine particles from the liquid supplied from the supply tank by centrifugal force, supply the liquid from which the fine particles have been separated to the device, and allow the separated fine particles to settle. [Effects of the Invention]

[0014] With the above-described configuration, the present invention has the following effects.

[0015] In the inventions described in claims 1 to 5, the removal belt includes a plurality of wires arranged parallel to each other and a pair of flexible frames that hold both ends of the plurality of wires, and is configured to be bendable by the pair of flexible frames.The removal belt rotates using a drive roller and a support roller, and is configured so that floating matter present on the surface of the liquid can adhere to and be removed from the plurality of wires, thereby increasing the area on which floating matter can adhere, and making it possible to efficiently remove floating matter present on the surface of the liquid with a simple structure. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 10 is a diagram showing the arrangement of wires. [Figure 5] FIG. 10 shows the longitudinal arrangement of wires. [Figure 6] FIG. [Figure 7] FIG. 10 is a diagram showing an embodiment of a liquid purification system in which a fine particle removal device is disposed in a circulation supply path. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of a floating matter removal device and a liquid purification system of the present invention will be described. The embodiment of the present invention shows the most preferred mode of the invention, and the present invention is not limited to this.

[0018] The floating matter removal device and liquid purification system of this invention are widely used for removing fine particles from liquids, such as raw materials for pharmaceuticals, chemicals, food, and beverages, removing fine particles such as cutting dust from the automotive industry and processing industries using machine tools, machine tools, and other machinery, removing fine particles such as impurities from semiconductors and biotechnology from circulating water and wastewater in factories and water treatment plants, and removing fine particles that are foreign bodies from cleaning water, solvents, etc.

[0019] (fine object removal device) The fine particle removal device of this embodiment will be described with reference to Fig. 1 to Fig. 6. Fig. 1 is a side view of the fine particle removal device, Fig. 2 is a diagram showing the drive mechanism, Fig. 3 is a diagram showing the removal belt, Fig. 4 is a diagram showing the arrangement of the wires, Fig. 5 is a diagram showing the longitudinal arrangement of the wires, FIG. 6 is a diagram showing the scraping member.

[0020] The fine particle removal device 10 of this embodiment is provided in a supply tank 100 that stores the liquid to be supplied to the device, and is used to separate and remove fine particles contained in the liquid. This fine particle removal device 10 is configured to include a support roller 20 arranged to be in contact with the liquid, a drive roller 30 arranged not to be in contact with the liquid, and a removal belt 40 stretched between the support roller 20 and the drive roller 30.

[0021] Supply tank 100 is provided with a main body case 50, and a support bar 51 is provided on main body case 50 so that the height thereof can be adjusted. Support rollers 20 are rotatably supported on support bar 51, and drive rollers 30 are rotatably supported on main body case 50. Support rollers 20 are arranged so as to be in contact with the liquid, and drive roller 30 is arranged so as not to be in contact with the liquid.

[0022] The support roller 20 has guide flanges 21 on both sides, and anti-slip portions 22 are formed on the inside of the guide flanges 21 by spline grooves. Similar to the support roller 20, the drive roller 30 also has guide flanges 31 on both sides, and anti-slip portions 32 are formed on the inside of the guide flanges 31 by spline grooves.

[0023] A drive motor 60 is connected to the drive roller 30. When driven by the drive motor 60, the drive roller 30 rotates, and the removal belt 40 stretched between the support roller 20 and the drive roller 30 rotates.

[0024] The removal belt 40 includes a plurality of wires 41 arranged parallel to one another and a pair of flexible frames 42 that hold both ends of the plurality of wires 41, and is configured to be bendable by the pair of flexible frames 42.

[0025] The wires 41 are, for example, wires with a circular cross section, made of metal or resin. The wires 41 have a diameter that allows floating matter present on the liquid surface to adhere to and be removed, and the size of the gap L between each wire 41 is a size that allows the floating matter to be retained, and is preferably about 0.1 mm, for example, but is not limited to this and can be set according to the floating matter, with the minimum gap that can be set being about 20 microns.

[0026] The wire 41 may be a wire with a wedge-shaped cross section as shown in Figures 4(c) and 5(c), or a wire with a semicircular cross section as shown in Figures 4(d) and 5(d), but is not limited to these.

[0027] The pair of flexible frames 42 are made of rubber or resin. The rubber material is preferably a material that is chemically resistant to liquids and has elasticity, such as chemically resistant rubber, fluorine-based rubber, or chemically resistant elastomer.

[0028] The resin material is not particularly limited as long as it is a flexible resin, but from the viewpoint of the requirements for mechanical toughness that can withstand cleaning operations, ability to conform to bent parts, and chemical resistance, polyethylene terephthalate (PET), polyamide (nylon), polypropylene, polyolefin composite filament (core polypropylene, sheath polyethylene), etc. are preferred.

[0029] The pair of flexible frames 42 are stretched across the anti-slip portion 22 of the support roller 20 and the anti-slip portion 32 of the drive roller 30, and are guided by the guide flange 21 of the support roller 20 and the guide flange 31 of the drive roller 30 to rotate smoothly.

[0030] In this way, the removal belt 40 is rotated by the drive roller 30 and the support roller 20, and is configured so that floating matter present on the surface of the liquid can adhere to the multiple wires 41 and be removed.The multiple wires 41 increase the area on which floating matter can adhere, and the floating matter accumulates in the gaps L formed between the multiple wires 41, allowing floating matter present on the surface of the liquid to be efficiently removed.

[0031] This fine matter removal device 10 includes scraping members 70 and 71 and a gutter member 80 that collects floating matter. The scraping members 70 and 71 are configured to scrape off and remove floating matter adhering to the multiple wires 41, with the scraping member 70 being positioned inside the removal belt 40 and the scraping member 71 being positioned outside the removal belt 40.

[0032] The scraping member 70 is composed of a support plate 70a, a scraping bar 70b, and an attachment member 70c, and is attached to the main body case 50 by the support plate 70a. Similar to the scraping member 70, the scraping member 71 is composed of a support plate 71a, a scraping bar 71b, and an attachment member 71c, and is attached to the main body case 50 by the support plate 71a. The scraping bar 70b of the scraping member 70 chips off floating matter adhering to the inside of the plurality of wires 41 from the inside of the removal belt 40, and the scraping bar 71b of the scraping member 71 scrapes off floating matter adhering to the outside of the plurality of wires 41 from the outside of the removal belt 40.

[0033] The gutter member 80 is configured to receive and collect the floating matter removed by the removal belt 40, and is disposed below the scraping bar 70b of the scraping member 70 and the scraping bar 71b of the scraping member 71. When the floating matter adhering to the plurality of wires 41 is scraped off by the scraping member 70 and the scraping member 71, the floating matter falls onto the gutter member 80, and the floating matter flows over the gutter member 80 and is collected.

[0034] (Liquid purification system) The liquid purification system of this embodiment will be described with reference to Fig. 7. Fig. 7 is a diagram showing an embodiment of a liquid purification system in which a fine particle removal device is disposed in a circulation supply path.

[0035] The liquid purification system 200 of the embodiment shown in Figure 7(a) includes a supply tank 203 that stores the liquid to be supplied to the device 201, and a circulation supply path 204 that supplies the liquid from the supply tank 203 to the device 201 and sends the liquid used in the device 201 to the supply tank 203 for circulation and supply.

[0036] The device 201 is, for example, a processing device for processing metals, and the liquid is a processing fluid that is cooled during processing to prevent damage due to heat. A supply pump 205 is arranged in the circulating supply path 204, and by driving this supply pump 205, the processing fluid stored in the supply tank 203 is supplied to the device 201 via the circulating supply path 204.

[0037] This supply tank 203 is equipped with a fine matter removal device 10, which is configured as shown in Figures 1 to 6 and is capable of adhering and removing floating matter present on the liquid surface of the supply tank 203.

[0038] The liquid purification system 200 of the embodiment of FIG. 7(b) is configured similarly to the embodiment of FIG. 7(a), but in this embodiment, a centrifugal separator 210 is disposed in the circulating supply path 204.

[0039] This centrifugal separator 210 is configured to separate fine particles from the liquid supplied from the supply tank 203 by centrifugal force, supply the liquid from which the fine particles have been separated to the device 201, and allow the separated fine particles to settle, and has a sedimentation cup 211 connected to its bottom. This sedimentation cup 211 is detachable, and by removing it, the settled fine particles can be discharged all at once. Alternatively, the sedimentation cup 211 may be provided with a discharge port for discharging the settled fine particles, and the settled fine particles may be discharged from the discharge port by manually operating a discharge valve. [Industrial Applicability]

[0040] This invention is applicable to a floating matter removal device and liquid purification system that removes floating matter present on the surface of a liquid, and is capable of efficiently removing floating matter present on the surface of a liquid with a simple structure. [Explanation of symbols]

[0041] 10 Fine particle removal device 20 Support roller 21 Guide flange 22 Anti-slip part 30 drive roller 31 Guide flange 32 Anti-slip part 40 Removal Belt 41 Wire 42 Flexible frame 50 Main unit case 51 Support bar 70,71 scraping member 80 Gutter parts 100,203 Supply Tank 200 Liquid Purification System 201 Equipment 204 Circulation Supply Route 205 Supply Pump 210 Centrifugal separator

Claims

1. A support roller disposed in contact with the liquid; A drive roller arranged so as not to come into contact with the liquid; a removal belt that is stretched around the support roller and the drive roller; The removal belt is A plurality of wires arranged parallel to each other; a pair of flexible frames for holding both ends of the plurality of wires; The pair of flexible frames are bendable, The removal belt is rotated by the drive roller and the support roller; A floating matter removal device characterized in that floating matter present on the surface of the liquid is attached to the multiple wires and can be removed.

2. A scraping member is provided, The scraping member is 2. The floating matter removal device according to claim 1, wherein the floating matter adhering to the plurality of wires is scraped off and removed.

3. A gutter member for collecting floating matter is provided, 3. The floating matter removal device according to claim 1, wherein the gutter member is configured to receive and recover the floating matter removed by the removing belt.

4. a supply tank for storing a liquid to be supplied to the device; a circulation supply path for supplying liquid from the supply tank to the device and for sending the liquid used in the device to the supply tank and circulating the liquid for supply; In the supply tank A liquid purification system comprising the fine matter removal device according to any one of claims 1 to 3, and configured so that suspended matter present on the liquid surface can adhere to and be removed.

5. A centrifugal separator is disposed in the circulation supply path; The centrifuge device is The liquid purification system according to claim 4, characterized in that it is configured to separate fine particles from the liquid supplied from the supply tank by centrifugal force, supply the liquid from which the fine particles have been separated to the device, and allow the separated fine particles to settle.

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