JPS6022986Y2 - filtration device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a filtration device suitable for use in work departments that generate industrial wastewater, such as marine product processing and pulp and paper industry, or in food and beverage businesses that generate a large amount of kitchen waste.

As mentioned above, when dealing with filth that contains a large amount of water, the first requirement is to perform sufficient dehydration, but this water usually contains fats and oils, viscous substances, flat particles, etc. Therefore, conventional sieving, vacuum filtration, etc., which have been used in the past, tend to clog the filtration surface and are not sufficiently effective.

This invention eliminates the above-mentioned drawbacks, and uses a mesh surface made of punched metal with fine holes as a sieving surface,
The sieving is promoted through a rake that applies rubbing and hitting forces in conjunction with the vibrations and the vibrations of the mesh surface.
Moreover, the solid matter on the screen is constantly removed to perform efficient dehydration filtration.

An embodiment of this invention will be described with reference to the drawings. Reference numeral 1 refers to the main body, which is made in the shape of a square box with an open top, and a raw material supply box 2 is formed by dividing the upper part of the front part.

In this raw material supply box 2, the raw material inlet pipe 2 temporarily stores the raw material sent from the raw material inlet pipe 3, and allows the raw material to flow out evenly from the overflow gutter 4 at the rear end.

Note that 5 is a drain cock of the raw material supply box 2.

A treated water outlet 6 is provided below the front wall of the main body 1, and a solids chute 7 is provided at a required height on both sides of the rear wall.

Next, in the main body 1, a filter plate 8 is provided at a level below the overflow gutter 4 of the raw material supply box, and is inclined slightly upwardly to the rear.

This filter plate 8 has a stainless steel plate with many fine holes 9...
It is made of a flat plate of punched metal with dots (diameter 0.3 to 0, diameter) over the entire surface, its front edge is located below the overflow gutter 4, and the front end is A rising plate 10 for preventing backflow is installed upright, and its trailing edge reaches above the solids chute 7, and two wide rubber plates 11, 1.1 are placed at the rear end, with their upper ends overlapped and their lower ends overlapped. One side extends from the front edge of the solids chute 7 to the inner surface of the rear wall of the main body 1,
In addition, the other one is hung down so as to directly reach the surface of the solid matter chute 7.

This filter plate 8 has both side edges close to the inner surfaces of both side walls of the main body 1, and as shown in FIG. The main body 1 is supported at a suitable position near the rear end by a spring 13 fixed to the main body 1, and is supported and held by the main body 1 at a suitable position near the front end via a vibration mechanism 14.

As is clear from FIG. 4, in this vibration mechanism 14, an intermediate eccentric portion 17 of a rotating shaft 16, which is horizontally suspended across bearings 15, 15 provided on both side walls of the main body 1, is fixed to the lower surface of the filter plate 8 via a ball bearing 18. The rotating shaft 16 is rotated at high speed by a motor 19 provided on one side edge of the main body 1 via a V-belt 20.

Next, above the filter plate 8, horizontal front and rear axes 21 and 22 are provided passing through both side walls of the main body 1.
．． Endless chains 25 and 25 are suspended over the left and right sets of sprocket wheels 23, 23, 24, and 24, respectively, which are located close to the inner surface of the main body 1 (located and fixed at 22), and hang down due to their own weight without supporting the intermediate portions. , rake 26 at regular intervals over these chains 25.25
・・・・・・・・・is suspended horizontally.

This rake 26 consists of an angle piece 27 fixedly attached to a chain 25.25, and two to three belt-shaped rubber plates 28...
The scraped surface is formed by fixing the ... with overlapping screws,
When the front shaft 21 is rotated by a deceleration motor 29 provided on the other side edge of the main body 1 via a V-belt 30, it moves in the direction of the arrow in FIG. 2 and rubs the upper surface of the filter plate 8.

In this case, the leading edge of the endless chain 25.25 with rakes 26... is provided close to the trailing edge of the overflow gutter 4, so that each rake 26...・・・
When moving from the return side to the scraping side, it passes through the raw material water flowing down from the overflow gutter 4 to wash off the deposits on the surface. Since the plate is 10, there is no risk of it falling.

Inside the main body 1 is a cleaning water nozzle 3 located below the filter plate 8.
1... are provided facing upward and can spray a spray onto the lower surface of the filter plate 8.

In FIG. 1, 32 is a water supply pipe for this cleaning water nozzle.

This device has the above-mentioned structure, and raw water flowing into the raw material supply box 2 from the raw material inlet pipe 3 flows down uniformly onto the filter plate 8 through the overflow gutter 4.

Since the filter plate 8 is finely oscillated via the vibration mechanism 14, the raw material on the filter plate 8 is forcibly filtered, and the moisture is passed through the fine holes 9 along with the fine particles. pass through and fall.

In addition, the mesh material is forced by a rake 26 that slides on the surface of the filter plate 8 while being removed by the vibration of the filter plate 8 and moves slowly on its own. The solids chute 7 is pushed forward without clogging the surface of the filter plate 8 due to the beating vibration of the rake 26 itself accompanying the swinging of the endless chain 25, 25. In this case, as mentioned above, there are two rubber plates 11, 11 at the rear end of the filter plate 8, one from the front edge of the solids chute 7 to the inner surface of the rear wall of the main body 1, and the other to prevent the solids from falling upward. The rubber plates 11 and 11 are installed hanging down over the material chute 7, and since these rubber plates 11 and 11 vibrate together due to the rocking of the filter plate 8, the upper part of the screen that falls from the filter plate 8 moves along the filter plate 8, so-called return. rubber plate 1 without causing
It is sent to the solid matter chute 7 without adhering to the solid matter chute 7, and there is no fear that sewage water after washing the lower surface of the filter plate 8 will enter the solid matter chute 7 side.

As described above, this invention has many advantages, such as extremely efficient filtration and washing, and there is no possibility that the separated upper and lower mesh materials will mix together.

[Brief explanation of the drawing]

FIG. 1 is a plan view, FIG. 2 is a vertical side view, FIG. 3 is a front sectional view of the filter plate portion, and FIG. 4 is an explanatory diagram of the vibration mechanism. In the figure, 1 is the main body, 2 is the raw material supply box, 4 is the overflow,
6 is a treated water outlet, 7 is a solid matter chute, 8 is a filter plate, 1
0 is a stand-up plate, 11 is a rubber plate, 13 is a spring, 14
is a vibration mechanism, 25 is an endless chain, 26 is a rake, 31
indicates the cleaning water nozzle.

Claims (1)

[Scope of utility model registration request] A filter plate 8 dotted with fine holes is inside the box-shaped main body 1, which is equipped with an overflow pipe 4 for flowing raw materials upwardly at the front, a solids chute 7 at the rear end, and a treated water outlet 6 at the bottom. is mounted on a support with its front part supported by a vibration mechanism 14 and its rear part tilted upward slightly rearward via a spring 13, and a washing water nozzle 31 for spraying upward is provided below the filter plate 8. Above the plate 8, a rake 26, whose both ends are suspended from a pair of left and right endless chains 25 for movement, is installed horizontally, and at the front end of the sieve there is a rising plate of the required height. 10. Similarly, at the rear end, there are two wide ones with the upper edges overlapped.
A filtration device comprising two rubber plates 11, 11, one of which is attached to the inner surface of the rear wall of the main body 1, and the other one of which is attached to the upper surface of the solid matter chute 7, and is attached to the upper surface of the solid matter chute 7.