JP3082261U - Filtration equipment for lens processing wastewater - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To pursue low cost of initial and running lens processing wastewater filtration equipment that has extremely high purification efficiency and is excellent in ecology in which the cause of water pollution is fundamentally eliminated. In addition, it is provided in a compact form. SOLUTION: This is an apparatus for filtering lens processing wastewater from a lens processing machine for scraping a lens edge portion of eyeglasses, and an upper case 5 is connected to a storage case 1 for filtered water in a state where the internal space communicates with each other. In this upper case 5, a coagulant a
And a filter holding means 11 for detachably holding the bag-shaped filter 10 for filtering the lens-processed wastewater W to which is added.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a filtering device for draining lens processing water from a lens processing machine that scrapes a lens edge of eyeglasses.

[0002]

[Prior art]

 The above-mentioned lens processing machine can be used to scan the edge of the lens to make the lens conform to the frame of the spectacles, or for frameless spectacles, to lower the upper edge of the lens to meet the needs. It is used for processing and the like, and when slicing the lens edge, cleaning water is supplied to the slicing means.

[0003] The washing water is collected in a tank with a weir, and the supernatant water overflowing the weir is circulated and supplied to a means for scraping the lens edge, and is washed in accordance with a predetermined cycle time or a state of contamination. The water is taken out of the vessel and the washing water is drained to the sewer.

[0004]

[Problems to be solved by the invention]

 By the way, the cleaning drainage after the lens processing (hereinafter referred to as lens processing drainage) includes foreign matter generated from the grinding means itself in addition to the scraps on the lens edge, and If the lens is made of plastic, the scrap contains sulfur and tin, and in the case of glass spectacle lenses, the scrap contains lead.

[0005] However, discarding the lens processing wastewater, which contains abrasion debris and foreign matter and is in a state where these fine particles are concentrated and suspended, as it is in the sewer system, leads to extremely serious water pollution. There was a problem in point.

Accordingly, the present applicant has provided an apparatus dedicated to filtration which has solved the above-mentioned inconveniences, that is, a lens processing machine and a recovery tank for the lens processing wastewater. Separately from the line, a line for circulating and filtering the lens processing wastewater is provided across the above-mentioned tank and filter device to continuously filter the lens processing wastewater and supply the filtered water to the lens processing machine. An apparatus dedicated to filtration as described above has been developed and proposed by Japanese Patent Application No. 2000-190375 (however, it is not a so-called public use).

[0007] According to this device, excellent filtration treatment in terms of ecology, in which the cause of water pollution is fundamentally eliminated, is achieved. However, since initializing means and forced-feeding means are required, initial equipment is required. There was room for improvement in terms of higher costs and running costs, and larger equipment.

The present invention has been made in view of such circumstances, and has as its object to efficiently and efficiently capture abrasion debris and foreign matter contained in wastewater from lens processing and suspended substances. To provide an ecologically suitable filtration device that can take out lens processing wastewater as clean filtered water, with a compact size and low initial and running costs. is there.

[0009]

[Means for Solving the Problems]

 That is, in the filtering device for lens processing wastewater according to the present invention, an upper case is connected to a storage case for filtered water in a state where the internal spaces communicate with each other. It is characterized in that it has a built-in bag-shaped filter for filtering and filter holding means for detachably holding the bag-shaped filter (claim 1).

[0010] According to the filtering device having the above configuration, a coagulant is added to the lens processing wastewater taken out of the lens processing machine, and the coagulant is supplied to the bag-shaped filter built in the upper case. The wastewater contains abrasion debris and other foreign matter at the lens edge, as well as suspended solids, which are collected by the filter, and only purified and purified filtered water is taken out to the storage case.

As an example, the lens processing wastewater from the lens processing machine is taken out to an appropriate tank, and a flocculant is added while stirring the lens processing wastewater using a stirring rod. If left for several minutes, suspended solids contained in the lens processing wastewater will coagulate and coarsen, and this will precipitate at the bottom of the tank as aggregates.

The flocculated water in the tank may be supplied to the bag-shaped filter at one time. First, the supernatant water is supplied to the bag-shaped filter, and then the coagulated matter remaining at the bottom of the tank is removed. When the water is supplied to the bag-shaped filter and then the tank is washed, and the washing water is supplied to the bag-shaped filter, trapping of the aggregates by the bag-shaped filter is efficiently achieved in a short time.

[0013] The filtered water taken out of the storage case contains almost no filings or foreign matter at the lens edge containing sulfur, tin, lead, or the like, and further contains almost no fine particles of these. Draining the water into the sewer does not create any water pollution problems.

On the other hand, with respect to the aggregate captured by the filter, the aggregate is collected together with the filter, and the processing is entrusted to a specialized processing company, whereby the pollution of the environment by the aggregate is surely prevented.

[0015] The filtering device having the above configuration has an extremely simple structure and can be easily handled, and does not require any power. Therefore, according to the present invention, the cause of water pollution is reduced. Provide a filtering device for lens processing wastewater that is excellent in terms of ecology that is fundamentally eliminated, has extremely high purification efficiency, is compact, and has low initial and running costs. You can do it.

Here, if a disposable paper filter is used as the bag-shaped filter (Claim 2), it is needless to say that the cleaning of the filter can be omitted and the upper case for incorporating the filter is provided. If the filter case is detachably attached to the filtered water storage case (claim 3), the two cases can be easily cleaned by separating the two.

If the storage case for the filtered water is provided with a hanging handle for carrying the case (Claim 4), it is convenient for performing a processing operation such as drainage of the filtered water. If the case is provided with an upper lid that closes the upper opening of the case (Claim 5), the odor generated from the lens processing wastewater during the filtration of the lens processing wastewater to which the coagulant has been added is filtered. Can be effectively prevented.

Although the configuration of the filter holding means is not specified, it is necessary to keep the bottom and the peripheral surface of the bag-shaped filter and use the entire surface of the bag-shaped filter as a filtering surface. It is desirable that the filter holding means be an open-top net basket (claim 6), and that the net basket can be taken out of the upper case for easy cleaning. Is desirable (claim 7).

[0019]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a filtering device for draining lens processing water according to the present invention. FIG. 1 is a side view of the entire filtering device, and FIG. 2 is a longitudinal sectional view of the filtering device.

In these figures, reference numeral 1 denotes a storage case for filtered water, which is provided with a bottomed cylindrical case body 2, a hanging handle 3 for carrying the case, and a removable upper lid 4. .

Reference numeral 5 denotes a cylindrical upper case, in which a through hole 6 is formed in the center of the upper lid 4 of the storage case 1, and the lower side of the upper case 5 is inserted through the through hole 6. Are joined so that their internal spaces communicate with each other.

Reference numeral 7 denotes a removable upper lid for closing an upper opening of the upper case 5, and reference numeral 8 denotes a receiving plate portion provided on a lower side of the upper case 5, and a flow-down port 9 for filtered water is formed. Reference numeral 10 denotes a bag-shaped filter for filtering wastewater from lens processing to which a coagulant has been added, and a disposable paper filter is used in order to save the trouble of cleaning.

Reference numeral 11 denotes filter holding means for detachably holding the bag-shaped filter 10. The bottom and the peripheral surface of the bag-shaped filter 10 are kept in shape, and the entire surface of the bag-shaped filter 10 is used as a filtration surface. As described above, in this embodiment, the filter holding means 11 is formed of a net cage having an open top, and the filter holding means 11 using the net basket is formed so as to be able to be taken out of the upper case 5. It is arranged to be placed on the receiving plate 8.

At the time of filtering the wastewater from lens processing, before the edge processing of the spectacle lens is started by the lens processing machine (in this embodiment, when the edge processing is completed), the lens is stored in an appropriate tank 12. The lens processing wastewater W from the processing machine is taken out, and the coagulant a is added while stirring the lens processing wastewater W using the stirring rod 13.

After the addition of an appropriate amount of the coagulant a, the suspension is left for several minutes to coagulate and coarsen the suspended solids contained in the lens processing wastewater W, and this is formed as an aggregate in the tank bottom. Let it settle.

Next, in order to achieve efficient capture in a short time, preferably, the supernatant water is first supplied to the bag-shaped filter 10, and then the aggregate remaining at the bottom of the tank is removed from the bag-shaped filter 10. The water is supplied to the filter 10, and then the tank 12 is washed.

As a result, the aggregated and coarse aggregates are efficiently captured in a short time by the bag-shaped filter 10, and only the purified and clean filtered water is taken out to the storage case 1. For example, the filtration device is left as it is until the next filtration treatment is performed, and the water is drained so that the aggregate can be discarded.

Since the filtered water taken out of the storage case 1 contains almost no filings or foreign matter on the lens edge, including sulfur, tin, lead, and the like, and further contains almost no fine particles of these. Even if the filtered water is drained to the sewer, no water pollution problem will occur at all. On the other hand, aggregates captured by the filter 10 are collected together with the filter 10 and processed by a specialized processing company. By doing so, the prevention of environmental pollution is reliably achieved.

[0029]

[Effect of the invention]

 As described above, according to the present invention, a filtration device for lens processing wastewater which has an extremely high purification efficiency and is excellent in ecology, in which the cause of water pollution is fundamentally eliminated, is capable of reducing initial and running costs. It is now possible to provide the product in a compact and compact manner.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a filtering device for lens processing wastewater.

FIG. 2 is a longitudinal sectional view of a filtration device.

[Explanation of symbols]

1 ... storage case for filtered water, 3 ... hanging handle, 4, 7 ...
Top lid, 5 ... upper case, 10 ... bag-shaped filter, 11
... filter holding means, a ... flocculant.

Claims (7)

[Utility model registration claims] 1. A filtering device for draining lens processing water from a lens processing machine that scrapes a lens edge portion of eyeglasses, wherein an upper case is connected to a storage case of filtered water in a state where the internal space communicates with each other, The upper case has a built-in bag-shaped filter for filtering lens processing wastewater to which a coagulant has been added, and a filter holding means for detachably holding the bag-shaped filter. Filtration device for lens processing wastewater. 2. The apparatus for filtering waste water from lens processing according to claim 1, wherein a disposable paper filter is used as the bag-shaped filter. 3. The lens drainage filtering device according to claim 1, wherein the upper case is provided on an upper lid detachably attached to a filtered water storage case. 4. The lens processing drainage filtration apparatus according to claim 1, wherein the filtration water storage case is provided with a hanging handle for carrying the case. 5. The filtering device for draining lens processing water according to claim 1, wherein the upper case is provided with an upper lid for closing an upper opening of the case. 6. The filtering device for draining lens processing water according to claim 1, wherein the holding means for the filter comprises a net basket of an open top type. 7. The filtering apparatus for draining lens processing water according to claim 6, wherein the net basket is configured to be able to be taken out of the upper case.