JPH10118423A - Strainer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent particulate iron powder from being again flowed into a high-pressure shower device or the like and to easily perform maintenance work by freely detachably fitting a strainer means to the inflow port of recovery water sent to a storage tank and also equipping the strainer means so that a strainer member and a magnet are made close with each other. SOLUTION: Impurities such as iron power remaining on the surface of the body 20 of an automobile are washed down by actuation of shower devices 12,.... Water used for this water washing is recovered in a strainer device 1 and reused. In the strainer device 1, a strainer means 4 is freely detachably fitted to the inflow port 3 of recovery water sent to a storage tank 2. The strainer means 4 is provided by laying a housing frame body 32 with handgrips 31 between opposite supporting shelves 30, 30 stuck to a side wall 15 and a partition plate 16. A strainer member 5 is held in the center of the housing frame body 32 and magnets 6, 6 are held on both sides of the right and the left in the housing frame body 32. These are equipped mutually adjacently in a separated state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strainer used for removing foreign substances such as iron powder contained in water, and more specifically, to a degreasing / chemical conversion process prior to electrodeposition coating in an automobile factory. More particularly, the present invention relates to a strainer device for filtering water recovered from a vehicle body washing step and using filtered water again for washing the vehicle body.

[0002]

2. Description of the Related Art As is well known, in a degreasing / chemical conversion treatment prior to electrodeposition coating, a water washing step of washing an automobile body by spraying high-pressure shower water has been provided (for example, see Japanese Utility Model Application Laid-Open No. HEI 5-58). No. 7243). Conventionally, water used for washing the automobile body is collected in a tank, and subsequently, a strainer is used to remove impurities such as iron powder contained therein, and then used again in the same washing step. Have been.

FIG. 12 shows an example of a conventional strainer device used for this purpose. As shown in the figure, in a washing chamber 10 in a series of degreasing / chemical conversion processing lines, a high-pressure shower device 12 is arranged toward an automobile body 20 to be washed, and the automobile body 2
When the vehicle body 20 is transported on the C-type hanger 13 by spraying high-pressure shower water by the operation of the shower device 12.
The structure is such that impurities such as iron powder remaining on the surface of the surface are washed away. Then, the water used in the above-mentioned water washing is recovered and reused after filtration. That is, the water that has flowed down from the automobile body 20 or the like flows on the bottom surface 14 of the washing chamber 10, passes through the space between the vertical side wall 15 connected to the bottom surface 14, and the partition plate 16, flows into the strainer device 21, and temporarily stores the water. It is stored in the tank 22. At this time, as shown in FIG.
3, a wire mesh strainer 24 of about 8 to 10 mesh as a strainer is stretched between the supporting shelves 17 facing each other.
When passing through the inflow port 23, the water passes through the wire mesh strainer 24, and therefore, the water itself moves into the storage tank 22 as it is, but impurities such as iron powder contained in the recovered water 18 remain without being filtered. It has become. In addition, in FIG.
The handle of the wire mesh strainer 24 is shown. Thus, the recovered water 18 in the storage tank 22 (iron powder and the like have been removed).
As shown in FIG. 12, the pump 25 is supplied to the high-pressure shower apparatus 12... From the outlet 26 through the reuse pipe 27 by the operation of the pump 25. The lump formed by the minute iron powder or the like passing through the strainer 24 depositing on the bottom of the tank 22 during long-term use is discarded from the waste outlet 28 during maintenance and inspection.

[0004]

However, the wire mesh strainer 24 used in the above-described strainer device is suitable for separating and removing larger particles such as iron pieces having a size of about several mm due to coarseness. Smaller particles such as iron powder having a size of 1 mm or less cannot be filtered and separated well. Therefore, the conventional strainer device cannot always satisfactorily filter and separate the iron powder to be separated and removed, in particular, the iron powder having a size of about 0.1 mm from the recovered water 18, and is not removed. Fine particles are reused piping 2
7, a high-pressure shower device 12 in the washing chamber 10
・ Small iron powder is supplied to the car body 2
There is a problem in that it adheres to the surface of No. 0 and causes a coating film defect in the subsequent electrodeposition coating. On the other hand, 8 ~
If a wire mesh strainer with a finer mesh is used instead of the wire mesh strainer 24 of about 10 mesh, it is certainly possible to filter and separate smaller particles, for example, iron powder having a size of 1 mm or less. Would. However, as described above, the water for washing the vehicle body 20 is circulated and used between the washing chamber 10 and the storage tank 22,
Since a very large amount of water passes through the inlet 23 of the strainer device 21, if a very fine wire mesh strainer is used as a strainer at the inlet 23, clogging of the wire mesh strainer immediately occurs, and the strainer device becomes The function cannot be exhibited. Therefore, the method of using a wire mesh strainer with a finer eye is not an immediately applicable means since the maintenance work of the strainer must be performed frequently. In addition, the conventional strainer device is particularly suitable for collecting buff-debris or other collected water used for washing the automobile body 20 with hot water.
There is also a problem that the clogging of the paper tends to occur frequently. If the wire mesh strainer 24 becomes clogged, the clogging will be removed by manual cleaning, but the operation is very troublesome and takes a lot of time.
Therefore, it is more desirable that the strainer component used in this type of strainer device be hardly clogged and easy to maintain. Further, the water recovered from the washing step following the chemical conversion treatment using a zinc phosphate solution generally has a pH of 4
Since it is slightly acidic before and after, the strainer device also targets such recovered water. Therefore, the strainer parts used in the apparatus are less likely to corrode even under acidic conditions, and the higher the corrosion resistance, the more preferable.

The present invention has been made in order to improve the prior art against such a background, and an object thereof is to satisfactorily filter and separate iron powder and the like to be separated and removed from recovered water. Therefore, it is possible to prevent the fine iron powder that has not been removed from being sent again to a high-pressure shower device for washing and the like, and maintenance work for maintaining performance is very easy, Another object of the present invention is to provide a strainer device having excellent corrosion resistance under acidic conditions.

[0006]

SUMMARY OF THE INVENTION The present invention specifically comprises a storage tank for recovered water and strainer means removably attached to an inlet of the recovered water to the storage tank.
The strainer means is provided with a strainer member and a magnet, which are substantially formed of a lump of amorphous alloy fibers, close to each other. The strained water is reused for washing a vehicle body before electrodeposition coating or the like. To a strainer device for performing Further, as a more preferable aspect, the present invention further includes a flow rate adjusting means capable of reducing the speed at which the collected water passes through the strainer means to a required range near the inlet of the collected water to the storage tank. The present invention relates to the above strainer device. Further, according to another preferred embodiment of the present invention, the strainer means has a plurality of divided sections, some of which incorporate a strainer member and a magnet, and other sections include And a wire mesh strainer.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A storage tank is a tank used for washing an automobile body in a degreasing / chemical conversion step before, for example, electrodeposition coating and storing collected water.
The structure and type are not particularly limited, and any tank having at least an inlet and an outlet for the recovered water may be used. Further, the storage tank may be a tank provided with a strainer component corresponding to the strainer means described below. The strainer means is detachably attached to the inlet of the recovered water to the storage tank. This strainer means is provided with a strainer member and a magnet close to each other, for example, in an insulating storage frame. The shape of the strainer member and the magnet is not particularly limited, for example,
The strainer means is configured to be generally flat. Further, the strainer member and the magnet may be adjacent to each other and alternately and repeatedly arranged. The above magnets are generally known hard magnets (permanent magnets)
Is usually used. On the other hand, the strainer member is substantially formed of a lump of amorphous alloy fibers. Since they are provided close to each other, i.e. the strainer member made of amorphous alloy fibers is arranged in the magnetic field of the magnet, the magnetic field produces a high magnetic gradient, and thus the iron powder enters the magnetic field. When this occurs, a large suction force acts, and the iron powder is easily adsorbed to the strainer member. In addition, since the strainer member used in the present invention is substantially formed of a lump of amorphous alloy fibers, it exhibits an elongated high-angle BH curve, has excellent soft magnetism, has high magnetic permeability and low coercive force. Characteristics such as low magnetic loss, no crystal grain boundaries and no segregation of the composition, and no magnetic anisotropy, high strength (toughness), and excellent acid and corrosion resistance. Having. Examples of the amorphous alloy fiber that can be used as the material of such a strainer member include Co-Mo-Zr alloy and F
e-B alloy, Fe-B-Si alloy, Fe-Cr- (P,
C) alloy fibers selected from the group consisting of alloys and supermalloys. The strainer member is formed by compression-molding a lump of these amorphous alloy fibers into a predetermined shape, for example, a flat plate.

Therefore, in the strainer device of the present invention, the recovered water passes through the lump (strainer member) of the amorphous alloy fiber placed in the magnetic field of the magnet at the inlet of the recovered water to the storage tank. By this, iron powder etc. contained in the recovered water to be separated and removed is more satisfactory than the recovered water,
That is, filtration and separation can be performed with much higher performance than in the past. However, the strainer member made of the amorphous alloy fiber mass generally suppresses the speed at which the target fluid passes through the strainer member to a low flow speed of, for example, 2 cm / sec or less in order to sufficiently exhibit the high separation performance. Is required. Therefore, also in the strainer device of the present invention, in order to effectively prevent the target collected water from passing through the strainer member at a high flow rate exceeding, for example, 2 cm / sec, the vicinity of the inlet of the collected water into the storage tank is required. In the above, it is more preferable to further comprise a flow rate adjusting means capable of reducing the speed at which the recovered water passes through the strainer means to a required range of, for example, 2 cm / sec or less. As a flow rate adjusting means that can achieve such an object, for example, a structure such as a reducer that can further reduce the internal cross-sectional area of the inflow port on the inner side of the storage tank and further restrict the flow of recovered water. Parts. Another means is a slidable plate member, such as a slide damper, which can reduce the cross-sectional area through which the recovered water can pass by the slide and can arbitrarily restrict the flow rate of the recovered water. And the like. Further, a commonly used throttle valve can also be used as the flow rate adjusting means. Further, these specific flow rate adjusting means may be used alone, but if necessary, they may be used in appropriate combination.

In an automobile factory, the flow rate of recovered water from a washing process of an automobile body is generally, for example, 80 to 80%.
It is very large at 100 liters / minute. Therefore, in such an application, only the combination of the amorphous alloy fiber mass and the magnet is used as the strainer means, and the flow rate adjusting means keeps the flow rate of the recovered water within a required low speed range to separate and remove iron powder from the recovered water. In such a case, it is necessary to use a large strainer means, and the equipment cost of the strainer device becomes very high. Therefore, in the strainer apparatus of the present invention, when it is necessary to treat a large amount of recovered water, for example, the strainer means is divided into a plurality of sections, and a part of the divided sections is divided into a plurality of sections. Incorporates a combination of a lump of amorphous alloy fibers and a magnet, and the other areas include conventional ones such as 8 to 1
It is more preferable to adopt a configuration in which a wire mesh strainer of 0 mesh is provided, because it is possible to avoid an increase in the size of the strainer means and to suppress an increase in equipment cost of the present apparatus. In addition, since the water for cleaning the automobile body is generally circulated and used between the rinsing chamber and the storage tank of the strainer device, as in the above-described embodiment, the strainer means is entirely formed of the amorphous alloy fiber mass. Even if it does not consist of a set of magnets, during the circulation of the water for washing several times, any smaller particles such as iron powder of 1 mm or less can be combined with the combination of the amorphous alloy fiber mass and the magnet. Almost completely remains in the area to be incorporated, and contaminants to be separated and removed can be satisfactorily filtered and separated. Therefore, even in the above embodiment, satisfactory filtration performance can be maintained. Further, in the strainer device of the above aspect, in particular, the configuration in which the area for incorporating the amorphous alloy fiber mass and the magnet and the area including the wire mesh strainer are adjacent to each other allows the collected water to pass evenly. Is more preferable.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In any of the strainer devices of these embodiments, in the degreasing / chemical conversion process in automobile manufacturing, water collected from the vehicle body washing process is used, and the filtered water is used again for washing the vehicle body before electrodeposition coating. However, the present invention is not limited to this, and it goes without saying that the present invention is also applied to a strainer device that reuses the filtered water for water washing, hot water washing, and the like in other processes.

Embodiment 1 FIG. 1 schematically shows a configuration of a vehicle body cleaning system including a strainer device of Embodiment 1. As shown in the figure, in a washing chamber 10 in a series of degreasing / chemical conversion processing lines, a high-pressure shower device 12 is arranged toward an automobile body 20 to be washed, and the automobile body 2
When the vehicle body 20 is transported on the C-type hanger 13 by spraying high-pressure shower water by the operation of the shower device 12.
The structure is such that impurities such as iron powder remaining on the surface of the surface are washed away. And the water used for this water cleaning is
It is collected by the strainer device 1 of the present embodiment and reused after filtration. That is, the water that has flowed down from the automobile body 20 or the like flows down on the bottom surface 14 of the washing chamber 10, and the vertical side wall 15 connected to the bottom surface 14 and the partition plate 16.
, Flows into the strainer device 1 and is temporarily stored in the storage tank 2. The strainer device 1 is shown in FIG.
As shown in the figure, at the inlet 3 of the recovered water to the storage tank 2,
The strainer means 4 is detachably attached. The strainer means 4 is provided between the opposed support shelves 30 and 30 fixed to the side wall 15 and the partition plate 16 so as to span an insulative storage frame 32 with a handle 31. In addition, the strainer member 5 is housed in the center thereof, and the magnets 6, 6 are respectively housed on the left and right sides thereof, and these are provided close to each other in a separated state. In this embodiment, the storage frame 32 having a size capable of storing all of the strainer member 5 and the magnets 6 and 6 is used. However, the strainer member 5 and the magnets 6 and 6 are individually stored. It is also possible to use a plurality of storage frames. The latter case is advantageous in that only the strainer member 5 can be easily taken out from the inlet 3. The set of the strainer member 5 and the magnets 6, 6 is formed in a flat plate shape as a whole and is separable from each other. The strainer member 5 is made of an amorphous alloy fiber such as Co-Mo-Zr.
Alloy, Fe-B alloy, Fe-B-Si alloy, Fe-Cr
-It is substantially formed of a mass of alloy fibers selected from the group consisting of (P, C) alloy and Supermalloy. On the other hand, the magnet 6 is made of a general permanent magnet. Therefore, in this embodiment,
By housing the strainer member 5 in the frame 32 between the magnets 6, 6, when the strainer member 5 is arranged in the magnetic field of the adjacent magnets 6, 6, the magnetic field has a high magnetic gradient. As a result, when the iron powder enters the magnetic field, a large attractive force acts, and the iron powder is easily attracted to the strainer member 5. Conversely, by pulling the strainer member 5 out of the frame 32, the strainer member 5
When is placed outside the magnetic field of the magnets 6, 6, the attractive force does not act on the iron powder, and the iron powder adsorbed on the strainer member 5 is easily removed from the strainer member 5. Therefore,
Since the strainer means 4 is provided at the inlet 3 of the recovered water, the recovered water 18 from the washing chamber 10 passes through the strainer member 5 when passing through the inlet 3 as shown in FIG. Therefore, the water itself is transferred into the storage tank 2 as it is, but impurities such as iron powder contained in the recovered water 18 remain without being filtered, especially iron powder having a size of about 0.1 mm. I do. As shown in FIG. 1, the recovered water 18 in the storage tank 2 from which fine iron powder and the like have been removed is also operated by the pump 25 to flow from the outlet 26 through the reuse pipe 27 to the high-pressure shower. Are supplied again to the devices 12...

Therefore, in the apparatus of this embodiment, since the strainer means 4 is constituted by the combination of the amorphous alloy fiber member 5 and the magnet 6, the fine iron powder to be separated and removed is more satisfactory than the recovered water 18. The fine iron powder could be effectively prevented from flowing into the high-pressure shower device 12 of the washing chamber 10 through the reuse pipe 27. Further, in the present apparatus, the iron powder adsorbed on the strainer member 5 can be easily removed by pulling out the strainer member 5 from the storage frame body 32 and performing a simple washing with water. Just
It was possible to easily maintain the suction performance of the strainer member 5 at the initial level or a level corresponding thereto. further,
In the present apparatus, since the strainer member 5 is tough and has high strength and excellent corrosion resistance particularly under acidic conditions, the strainer member 5 can be used, for example, from a water washing step following a chemical conversion treatment using a zinc phosphate solution. Even when the collected water, that is, the liquid having a pH of about 4, is targeted, the corrosion of the strainer member 5 is hardly generated, and therefore, the service life of the apparatus becomes very long.

Embodiment 2 FIG. 3 schematically shows a configuration of a vehicle body cleaning system including a strainer device according to Embodiment 2, and FIG. 4 is an enlarged view of the strainer means and its periphery in the strainer device. As shown in these drawings, and particularly in FIG. 4, the strainer device of this embodiment has a flow rate adjusting means near the inlet 3 of the recovered water to the storage tank 2 and closer to the inside of the tank 2 than the strainer means 4. As a result, the internal sectional area of the inflow port 3 is further reduced on the inner side of the tank 2,
A reducer component 7 having a structure for further restricting the flow to the inside is attached. Therefore, the speed at which the recovered water 18 passes through the strainer means 4 (strainer member 5) in the vicinity of the inflow port 3 by the attachment of the reducer component 7
The flow rate is reduced to an optimum flow rate range for the performance of the strainer means 4, for example, a flow rate of 2 cm / sec or less.
Other configurations of the present apparatus are the same as those of the strainer apparatus of the first embodiment shown in FIGS. Therefore, the strainer device of this embodiment can sufficiently exhibit the separation performance of the strainer member 5 made of the amorphous alloy fiber lump, so that the iron powder and the like contained in the recovered water 18 can be filtered and separated most efficiently. This has the effect that it can be performed. In addition, the present device exhibits the same operational effects as the strainer device of the first embodiment.

Third Embodiment FIG. 5 schematically shows a structure of a vehicle body cleaning system including a strainer device according to a third embodiment, and FIG. 6 is an enlarged view of the strainer means and its periphery in the strainer device. As shown in these figures, and particularly in FIG. 6, the strainer device of this embodiment is arranged such that the flow rate adjusting means is disposed closer to the inside of the tank 2 than the strainer means 4 near the inlet 3 of the recovered water to the storage tank 2. The throttle valve 8 that can restrict the flow rate of the recovered water 18 is attached. Therefore, by the installation of the throttle valve 8, the speed at which the collected water 18 passes through the strainer means 4 (strainer member 5) in the vicinity of the inflow port 3 falls within a range of an optimum flow rate for the performance of the strainer means 4, for example, 2 cm / The flow rate is reduced to less than a second. Other configurations of the present apparatus are the same as those of the strainer apparatus of the first embodiment shown in FIGS. Therefore, the strainer device of this embodiment, similarly to the strainer device of the second embodiment, allows the strainer member 5 to sufficiently exhibit the separation performance, and
This has the effect that the iron powder and the like contained therein can be filtered and separated most efficiently. Moreover, the strainer device of the second embodiment can adjust the flow velocity of the recovered water 18 through the strainer member 5 to only one fixed value, whereas the strainer device of the third embodiment has The collected water 18 passing through the strainer member 5 depends on the opening and closing state.
Has the advantage that the flow rate can be appropriately adjusted over a certain range. That is, the apparatus of the second embodiment has a fixed type flow rate adjusting means, whereas the apparatus of the third example has a variable type flow rate adjusting means. In addition, with regard to other effects, the present apparatus is the same as the strainer apparatus of the first embodiment.

Fourth Embodiment FIG. 7 schematically shows a configuration of a vehicle body cleaning system including a strainer device according to a fourth embodiment, and FIG. 8 is an enlarged view showing the strainer means and its surroundings in the strainer device. As shown in these figures, and particularly in FIG. 8, the strainer device of this embodiment has a flow rate adjusting means near the inlet 3 of the recovered water to the storage tank 2 and closer to the inside of the tank 2 than the strainer means 4. A plate that is slidable in the horizontal direction (indicated by an arrow Y in the figure), where the cross-sectional area through which the recovered water can pass is reduced and the flow rate of the recovered water 18 can be arbitrarily limited. Is mounted. Therefore, the speed at which the recovered water 18 passes through the strainer means 4 (strainer member 5) in the vicinity of the inflow port 3 due to the attachment of the slide plate 9 is reduced.
The flow rate is reduced to a range of an optimum flow rate in terms of performance, for example, a flow rate of 2 cm / sec or less. Other configurations of the present apparatus are the same as those of the strainer apparatus of the first embodiment shown in FIGS. Therefore, the strainer device of this embodiment, similarly to the strainer device of the second embodiment, sufficiently exerts the separation performance of the strainer member 5 and most efficiently filters and separates iron powder and the like contained in the recovered water 18. It has the effect of being able to do so. Moreover,
The strainer device of the present embodiment has an advantage that the flow rate of the recovered water 18 passing through the strainer member 5 can be appropriately adjusted over a certain range depending on the degree of displacement of the slide plate 9 as in the strainer device of the third embodiment. Also have.
In addition, with regard to other effects, the present apparatus is the same as the strainer apparatus of the first embodiment.

Embodiment 5 FIG. 9 shows the strainer means 4 provided in the strainer device of Embodiment 5 from above. This strainer means 4
24 sections 11a, 11b, 11c, 11d, divided into four rows and six rows by a grid-like support frame 33.
And in some of these areas (for example, areas 11a and 11c), as shown in FIG. 10, a storage frame 34 spanned between support frames 33 and 33. To
The strainer member 5 and the magnets 6 and 6 made of the lump of the amorphous alloy fiber are incorporated close to each other as in the first embodiment, and other areas (for example, the areas 11b and 11d) are used.
As shown in FIG. 11, a wire mesh strainer 35 is provided so as to span between support frames 33 and 33. Other configurations of the present apparatus are the same as those of the strainer apparatus of the first embodiment shown in FIGS. Therefore, the strainer device of this embodiment can smoothly pass the collected water 18 not only from the area including the set 36 of the strainer member 5 and the magnet 6 but also from the area including the wire mesh strainer 35. Even in the case of treating collected water having a large flow rate of up to 100 liters / minute, it is possible to effectively separate and remove iron powder and the like contained therein. In particular, while the recovered water 18 circulates between the washing chamber 10 and the storage tank 2 and passes through the strainer means 4 several times, any iron powder having a size of 1 mm or less may become a strainer member. 5 and the magnet 6 remain in the area provided with the set 36, so that the contaminants to be separated and removed can be satisfactorily filtered and separated. Therefore, the strainer device of this embodiment is also the same as that of the first embodiment. Satisfactory filtration performance comparable to was maintained. Moreover, in the present apparatus, since the area of the strainer member / magnet set 36 and the area of the wire mesh strainer 35 are arranged adjacent to each other, there is also an advantage that the recovered water can be evenly passed. Further, with respect to other effects, the present apparatus is the same as that of the first embodiment.
This is the same as in the case of the strainer device.

[0017]

As described above, according to the strainer device of the present invention, the following effects can be obtained. In the strainer member of the amorphous alloy fiber mass,
The iron powder to be separated and removed can be satisfactorily filtered and separated from the recovered water, thus preventing the fine iron powder that has not been separated and removed from flowing through the circulation system to a high-pressure shower device for washing. Accordingly, it is possible to prevent the fine iron powder from being brought into the process after washing with water, and to prevent the occurrence of defects in the electrodeposition coating film. By simply removing the strainer member and washing with a simple water, the iron powder adsorbed on the strainer member can be removed and the performance of the strainer member can be returned to the original state, so maintenance work for maintaining performance is very easy It is. Further, the strainer member is tough and has high strength, and also has an advantage that it has excellent corrosion resistance particularly under acidic conditions, and thus has a very long service life of the apparatus. Further, by further providing the flow velocity adjusting means, the separation performance of the strainer member can be sufficiently exhibited, and the filtration and separation of iron powder and the like from the recovered water can be performed most efficiently. In addition, by using a configuration having an area provided with a strainer member of an amorphous alloy fiber mass and an area provided with a wire mesh strainer, even in the case of treating recovered water having a very large flow rate, iron powder and the like contained therein are treated. Separation and removal can be effectively performed.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a vehicle body cleaning system including a strainer device according to a first embodiment of the present invention.

FIG. 2 is an enlarged view showing the strainer means and its surroundings in the strainer device of the first embodiment shown in FIG.

FIG. 3 is a schematic diagram illustrating a vehicle body cleaning system including a strainer device according to a second embodiment.

FIG. 4 is an enlarged view showing the strainer means and its surroundings in the strainer device according to the second embodiment shown in FIG. 3;

FIG. 5 is a schematic diagram illustrating a vehicle body cleaning system including a strainer device according to a third embodiment.

FIG. 6 is an enlarged view showing the strainer means and its surroundings in the strainer device of the third embodiment shown in FIG.

FIG. 7 is a schematic diagram illustrating a vehicle body cleaning system including a strainer device according to a fourth embodiment.

FIG. 8 is an enlarged view showing the strainer means and its surroundings in the strainer device according to the third embodiment shown in FIG. 7;

FIG. 9 is a top view of a strainer provided in the strainer device according to the fifth embodiment.

10 is a view showing a part of the strainer means shown in FIG. 9 which includes a set of a strainer member and a magnet.

FIG. 11 is a diagram showing another area provided with a wire mesh strainer in the strainer means shown in FIG. 9;

FIG. 12 is a schematic view showing a vehicle body cleaning system including a conventional strainer device.

FIG. 13 is an enlarged view showing a wire mesh strainer and its surroundings in the conventional strainer device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Strainer apparatus 2 Storage tank 3 Inflow port 4 Strainer means 5 Strainer member 6 Magnet 7 Reducer part 8 Throttle valve 9 Slide plate 10 Rinse chamber 11a, 11b, 11c ... Area 27 Reuse piping 35 Wire mesh strainer 36 Strainer member and magnet Pair of

Claims (3)

[Claims] 1. A storage tank for collecting recovered water, and strainer means removably attached to an inlet of the recovered water into the storage tank, wherein the strainer means is substantially formed of a lump of amorphous alloy fibers. A strainer device comprising a member and a magnet disposed close to each other, wherein the strained water is reused for washing a vehicle body before electrodeposition coating. 2. The apparatus according to claim 1, further comprising a flow rate adjusting means for reducing the speed at which the collected water passes through said strainer means to a required range near the inlet of the collected water to said storage tank. The strainer device according to claim 1, wherein 3. The strainer means has a plurality of divided sections, some of which incorporate the strainer member and the magnet, and others include:
The strainer device according to claim 1, further comprising a wire mesh strainer.