JP2008043860A - On-vehicle rotary type sewage treating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of easily separating the solids content of several microns and water, and an on-vehicle rotary type by working special recessions and protrusions on a metal-made platelike ring body. <P>SOLUTION: An on-vehicle sewage treating apparatus constituted of a tubular laminate formed by stacking two or more platelike metal ring bodies is a filter making either one side of hollow chambers or outer peripheral chambers negative pressure. On the connecting surfaces of the platelike ring bodies, (a) minute recessions and protrusions are cut on the surfaces of tilted taper grooves gradually becoming deeper by a scraping process, (b) the respective taper grooves cross with each other in zigzag shapes and form boundary lines and (c) the metal-made filtering structure is formed with flow passages formed by continuously connecting the taper grooves. While the metal-made filtering structure is rotated, the hollow chambers are tightly closed and only water in contaminants in the peripheral side is sucked under negative pressure to be discharged to the outside, and the solid contents accumulated on the periphery are removed by rubbing reverse plugs or periphery thereof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a polluted water treatment apparatus such as manure, which has an excellent effect of separating moisture and solid content.

Conventionally, fiber filters and non-woven fabric filters have been used as filters for separating water and solid content in polluted water treatment equipment such as manure. Since the filter has a mesh structure, depending on the type of use, such as when it is frequently used or dehydrated filth, the mesh may become clogged or pass most of the urine. It was impossible to fulfill the requirements, and it was necessary to replace the filter constantly. Furthermore, the problem is pointed out that the replacement is not easy because it takes manpower and has a bad odor.
On the other hand, there is Patent Document 1 as a metal filter body that can be used repeatedly regardless of filter paper or the like, and the outline thereof is that a coil spring-type filter medium is provided in an oil tank in which frying oil is accommodated. A filter medium for filtering fluid by flowing fluid from one of the inner side and the outer side in the radial direction and flowing out from the other side, wherein a plurality of fluid circulation grooves traversing in the radial direction are formed in the filter medium body. The cross-sectional area of the upstream opening in the fluid circulation groove is set larger than the cross-sectional area of the downstream opening.
However, the technique of the above-mentioned Patent Document 1 is intended for rice cakes such as fried foods, and most of the pollutants such as manure mixed with water and solid content, which are the object of the present invention, It passes through the filter medium, and the filtration function cannot be expected.

JP 2005-186020 A

Therefore, the present invention pays attention to the rigidity of the metal and the high dimensional accuracy of the groove, and by forming a special concavo-convex process on the metal plate ring body, the number of times of use is significantly higher than that of the above-mentioned fiber filter or nonwoven fabric filter. In addition to proposing a technology for improving the water content and facilitating the separation of moisture and solid content, a technology that enables an on-vehicle type and a rotary type is proposed.

In order to achieve the above object, in the polluted water treatment apparatus used by being mounted on a vehicle according to claim 1 of the present invention,
Two or more metal ring bodies formed in a plate shape are laminated to form a cylindrical laminated body, and one of a hollow chamber and an outer circumferential chamber formed by the inner peripheral side and the outer peripheral side of the cylindrical laminated body In the filter body that flows sewage by negative pressure or pressurizing one,
(A) An inclined tapered groove that gradually becomes deeper or shallower toward the inner peripheral side or outer peripheral side on the joint surface of the plate-shaped ring body, and a predetermined pattern while engraving fine irregularities on the surface by scraping or the like. (B) the taper grooves of a predetermined length intersect each other in a zigzag shape to form a joint boundary in the front-rear direction, and (c) the taper grooves are formed from the outer peripheral side to the inner peripheral side or the inner peripheral side. Continuously connected from the side toward the outer peripheral side to form a metal filtration structure having a flow path,
While rotating the metal filtration structure, the hollow chamber formed on the inner circumference side of the metal filtration structure is sealed, and the vacuum pressure is applied to the outer circumference side of the metal filtration structure as the chamber is made negative. The present invention is characterized in that only the moisture of the existing pollutant is sucked under a negative pressure and discharged to the outside, and the solid matter accumulated on the outer periphery of the metal filtration structure is removed by rubbing the back plug or the outer periphery thereof.

  In the polluted water treatment apparatus according to claim 2, when the flow path is formed on the joint surface of the plate-shaped ring body, the tapered grooves of the predetermined length intersect each other in a zigzag shape to form a joint boundary in the front-rear direction. In addition to the above, an inclined taper groove that is deeper or shallower in either the left-right direction is formed, and a joining boundary is formed in the left-right direction.

  The polluted water treatment apparatus according to claim 3 is characterized in that the plate-shaped metal ring body is made of stainless steel or the like, and is a material that retains acid resistance and alkali resistance, and also retains bending resistance.

An on-vehicle rotary polluted water treatment apparatus according to the present invention is a structure in which an inclined tapered groove that gradually becomes deeper or shallower toward an inner peripheral side or an outer peripheral side is provided and the metal plate-like ring body is laminated. Therefore, the large solid content existing on the outer periphery or the inner periphery is blocked by the entrance of the tapered groove.
Even if it penetrates into the inside, the taper grooves of a predetermined length intersect each other in a zigzag shape to form a joint boundary, so that the solid content is blocked by the difference in height of the boundary and the filtration effect is exhibited. This action is repeated each time there is a zigzag intersection. At the same time, very fine solids are also absorbed and filtered by the fine uneven surface carved by scraping or the like in the flow path. Therefore, the pollutant such as manure mixed with moisture and solid content is filtered toward the center of the metal filtration structure, and only the moisture can be directed to the inner circumference side, and the solid content remains on the outer circumference side. Can be made.
In addition, since the treatment apparatus of the present invention has the metal filtration structure mounted on the vehicle, it can go to a place where it is necessary to treat pollutants such as manure. Since the rotary metal filtration structure separates moisture and solids, the installation area is small, simple and there are few failures. Since it is a rotary type, the solid content remaining on the outer peripheral surface of the metal filtration structure can be dropped into the discharge port with a back plug or easily removed with a scraper. Furthermore, the running cost is small and there is no filter replacement.
According to a second aspect of the present invention, the taper groove is an inclined tapered groove that gradually becomes deeper or shallower toward the inner peripheral side or outer peripheral side, and either one of them is deeper or shallower in the left-right direction, and has the predetermined length. In addition to forming a joint boundary where zigzag crosses the taper groove and also forming a joint boundary in the left-right direction, the filtering action by the joint boundary is exhibited at the boundary in the left-right direction in addition to the boundary at the zig-zag intersection, The effect is doubled.
If the metal plate-like ring body is made of stainless steel as described in claim 3, it is strong against both alkaline and acidic, and hardly rusts. Since it is rigid, it is difficult to deform, can withstand the suction of moisture with a vacuum pump, and can be provided with a function of separating moisture and solids over a long period of time.

Therefore, an embodiment of the present invention will be described below with reference to FIGS. 1 to 3 will be described with respect to a metal plate-like ring body, and FIG. 4 will be described with respect to a manure treatment apparatus including the metal plate-like ring body.
FIG. 1 shows (a) an overall plan view and (b) an overall cross-sectional view of a metal plate-like ring body 1. (B) The striped shape appearing in the overall plan view is engraved by scraping from the outer peripheral side to the inner peripheral side with a square bar blade to form a concave portion on the entire surface of the metal plate ring body plane 2 It is what. That is, the taper groove 2a faces the outer periphery 4 and has an opening 7 through which the mixture of the water and solid content of the polluted water before filtration is primarily filtered, and each taper groove 2a holds an inclined surface having the same length. And keep it parallel. Further, the taper groove 2a and the taper groove 2b connected next are engraved as continuous zigzag grooves while overlapping in series. Therefore, the groove is formed from the outer periphery 4 to the inner periphery 6 of the metal plate-like ring body 1, indicating that the groove is filtered along the flow of the continuous groove.
Here, scraping means that a scraping tool is used to finish a surface having minute irregularities while locally cutting and rubbing.
(B) In the overall cross-sectional view, the metal plate-like ring body plane 2 of the metal plate-like ring body 1 is processed with the taper groove 2a and the taper groove 2b, and the thickness is set to the metal plate-like ring body. The cross section is represented by 3. The thickness was set to a thickness that does not easily deform with respect to the air pressure used as the metal filter material.

FIG. 2 is an enlarged view of a part of the metal plate-like ring body plane 2 of FIG. 1, and shows (a) an enlarged plan view, (b) an enlarged front-rear direction sectional view, and (c) an enlarged left-right direction sectional view.
FIG. 2 (a) shows the engraved state of the inclined surface taper groove 2a and the taper groove 2b. As shown in FIG. 1, the taper groove 2a and the taper groove 2b cross each other while being bent in a zigzag manner. , Which are connected in series with the taper groove 2a, taper groove 2b, taper groove 2c,...
Furthermore, the arrows in the figure schematically represent the flow of the filtrate from the outer periphery 4 to the inner periphery 6, and the flow schematically represents a flow path where branching or confluence occurs during the filtration. A flow path with branching or merging represents an increase in flow path length and has good filtration efficiency.
At this time, the taper groove 2a and the taper groove 2b are connected in series in a zigzag shape, and the taper groove 2a and the taper groove 2a in the left-right direction are connected in parallel so that a boundary can be formed at the joint. If the joining boundary of the taper groove is formed in the front-rear direction while maintaining the joining in the left-right direction, the filtering action is repeated, and the efficiency is doubled. Here, the front-rear direction refers to a direction from the outer periphery 4 side to the inner periphery 6 side of the metal plate ring body 1.
FIG. 2 (b) shows the AB cross section of FIG. 2 (a), in which an inclined surface of the tapered groove 2a is formed from the primary opening 7 formed by the scraper square bar cutter, and the tapered groove 2b The engraved situation of a narrow secondary opening is shown.
The details of the tapered groove 2a are such that the right side of the inclined surface in the figure is shallow and the left part is deep. The suspended right-side depth portion becomes the solid-state opening 7 to be filtered, and a narrow opening having a depth through which only moisture can pass is formed. This narrow opening, that is, a boundary is formed at the joint, and performs a filtering action. That is, this filtration mechanism is depressurized by air pressure from the inner circumference 6 side of the filter, and the solid content and moisture present on the outer circumference 4 are forcibly drawn from the narrow opening of the tapered groove 2a, Large solids that are not drawn by the air pressure are blocked by the entrance of the narrow opening and difficult to pass, and moisture and fine solids pass through the entrance of the narrow opening and flow through the inclined surface 5 Then, it flows into the deep part of the tapered groove 2a at the back of the slope to complete the first filtration.
In the next stage, the stagnant moisture and the fine solid content 8 are drawn from the narrow opening of the next tapered groove 2b connected to the recess of the inclined surface of the tapered groove 2b, and the secondary filtration is performed. . This mechanism is sequentially repeated with the third filtration and the fourth filtration, and finally, only the moisture passes through the flow path 5 on the inner circumference 6 side of the metal plate ring body 1. As a result, the mixture is completely separated into solid and moisture.
FIG. 2 (c) shows the CD cross section of FIG. 2 (b), and shows a state where the taper groove 2a and the taper groove 2a are connected in parallel in the left-right direction and a boundary is formed at the joint. is there.
The depth in the left-right direction of the groove in this figure is such that the left depth part of the inclined surface in the figure is shallow and the right depth part is deep. The suspended left front portion is an opening 7 for solid matter to be filtered, and this opening 7 forms a depth through which only moisture passes. That is, moisture entering from the taper groove 2c having a narrow opening in the front-rear direction is changed in the left-right direction and then flows into the taper groove 2d, forming a boundary at the junction between the taper groove 2c and the taper groove 2d, A new filtration will be formed. As in the case of the taper groove 2a and the taper groove 2b in the front-rear direction connected in series, the filtering action is exerted at the boundary in the left-right direction, and the junction boundary of the taper groove is formed in the front-rear direction while maintaining the left-right direction. This results in a repeated filtration action, and its efficiency is doubled.

FIG. 3 shows an enlarged cross-sectional view of the flow path 5 of the inclined surface taper groove 2a. FIG. 3A shows an inclined surface channel, and FIG. 3B shows a channel cross section of the inclined surface.
The solid content 9 and water having a large particle diameter before filtration existing on the outer periphery 4 are forcibly drawn from the narrow opening 7 of the tapered groove 2a, but the solid content 9 having a large particle diameter is left on the outer periphery 4. This completes the first filtration. Moisture sucked into the tapered groove 2a and a fine solid content 8 of several microns pass through the flow path 5 having a surface roughness of 1 to 5 μm subjected to scraping. Even in this valley of the surface roughness, the fine solid content 8 is temporarily captured, and the water and the solid content are separated in this flow path, and flow into the deep part of the slope while producing a difference in flow velocity. A fine solid is accumulated.
The moisture and fine solids that are continuously pushed in are pushed out to the flow path of the next inclined surface. By repeating this, the solid content gradually remains in the flow path, and finally only moisture passes through the flow path. As a result, solids and moisture are completely separated.
On the other hand, FIG. 3 (b) shows a channel cross section of an inclined surface. This cross-sectional waveform indicates that scraping has been performed from the upper part to the lower part of the paper surface, and that the contact point between the tip portion of the scraping tool and the ring body surface is formed by sweeping.
The upper part of the hanging paper surface becomes an opening 7 for solid content to be filtered, and moisture and fine solid content 8 pass through the opening 7 and proceed in the front-rear direction as they are. Thereafter, when the flow path is changed from the front-rear direction to the left-right direction as described above with reference to FIG. 2C, the cross-sectional waveform changes to a function of capturing fine solid content 8, and only moisture is left-right. As it progresses, a boundary is formed at the joint of the tapered groove, and a new filtration is formed.

  The metal plate-like ring body is made of stainless steel which does not easily rust, and a material having an appropriate hardness is preferable.

Next, the metal filtration structure is mounted on a car to form a rotary manure treatment apparatus, and an embodiment thereof will be described with reference to FIG.
FIG. 4 (a) is a side view of a rotary urine treatment device mounted on a car bed. The metal filtration structure 21 shown in this figure is formed by laminating and fixing several metal plate-like ring bodies, and the inner peripheral side of the metal filtration structure 21 and the vacuum pump 22 are coupled via a pump pipe 23, As the vacuum pump 22 is operated, the inner peripheral side of the metal filtering structure 21 is evacuated. The pressure is sucked from the urine suction port 28 via the taper groove formed in the flat portion of the metal plate-shaped ring body, and only the moisture of the urine substance 27 existing on the outer peripheral side of the metal filtration structure 21 is obtained. The negative pressure is sucked and moisture is discharged to the outside through the drainage pipe 24. On the other hand, the solid content is accumulated on the outer periphery of the metal filtration structure 21, and the solid content is removed and returned to the tank 26 as the back stopper or the outer periphery thereof is rubbed with the scraper 25. The reverse plug is a pressure applied from the inside opposite to the outside of the metal filtration structure 21,
It means removing the solid matter adhering to the outer periphery with the injection pressure from the inside.

  A portion indicated by a broken line in FIG. 4A shows the movement of the lid portion when the solid content is discarded, and represents a driving method in which the lid 29 is opened and discharged to a predetermined place. Further, FIG. 4B is a plan view of a car in which a rotary manure processing device is mounted on the loading platform.

The present invention is an indispensable method for easily separating the water and solid content of pollutants such as manure, suppressing environmental pollution, and burning and discarding the solid content with less energy, and can be used for a long period of time and is downsized. Is possible.
The principle of this separation method is that a taper groove that forms a shallow inclined surface that is shallow toward the inner periphery and shallower toward the inner periphery is applied to the flat surface of the metal plate ring body. Since it rotates in the laminated state, the large solid content existing on the outer periphery is blocked by the inlet of the tapered groove and cannot enter the metal filtration structure. The pollutant such as manure mixed with moisture and solid content is filtered toward the center of the metal filtration structure, and only the moisture can be directed to the inner circumference side, so that the solid content remains on the outer circumference side. be able to.
If the metal plate-like ring body is made of stainless steel, it is strong against both alkaline and acidic, and hardly rusts. Since it is rigid, it is difficult to deform, can withstand the suction of moisture with a vacuum pump, and can be provided with a function of separating moisture and solids over a long period of time.

  The present invention can be widely used not only for manure treatment but also for muddy water sewage treatment.

The whole plan view and whole sectional view of a metal plate-like ring object of the present invention. The enlarged plan view, enlarged front-back direction sectional view, and enlarged left-right direction sectional view of the metal plate-like ring body of the present invention. The expanded sectional view of the inclined surface flow path and flow path crossing of the metal plate-shaped ring body of the present invention. (A) is a side view of the on-vehicle rotary polluted water treatment apparatus of the present invention, and (b) is a plan view of the on-vehicle rotary polluted water treatment apparatus of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal plate-shaped ring body 2 Metal plate-shaped ring body plane 2a Tapered groove 2b Tapered groove 2c Tapered groove 2d Tapered groove 3 Metal plate-shaped ring body cross section 4 Outer periphery 5 Flow path 6 Inner periphery 7 Opening 8 Fine solid Minute 9 Solid content with large particle size before filtration 10 Sealed chamber 21 Metal filtration structure 22 Vacuum pump 23 Pump pipe 24 Drainage pipe 25 Scraper 26 Tank 27 Manure substance 28 Manure suction port 29 Lid

Claims (3)

Two or more metal ring bodies formed in a plate shape are laminated to form a cylindrical laminated body, and one of a hollow chamber and an outer circumferential chamber formed by the inner peripheral side and the outer peripheral side of the cylindrical laminated body In the filter body that flows sewage by negative pressure or pressurizing one,
(A) An inclined tapered groove that gradually becomes deeper or shallower toward the inner peripheral side or outer peripheral side on the joint surface of the plate-shaped ring body, and a predetermined pattern while engraving fine irregularities on the surface by scraping or the like. (B) the taper grooves of a predetermined length intersect each other in a zigzag shape to form a joint boundary in the front-rear direction, and (c) the taper grooves are formed from the outer peripheral side to the inner peripheral side or the inner peripheral side. Continuously connected from the side toward the outer peripheral side to form a metal filtration structure having a flow path,
While rotating the metal filtration structure, the hollow chamber formed on the inner circumference side of the metal filtration structure is sealed, and the vacuum pressure is applied to the outer circumference side of the metal filtration structure as the chamber is made negative. A vehicle characterized by sucking only the moisture of the existing pollutant under negative pressure and discharging it to the outside, and removing solid matter accumulated on the outer periphery of the metal filtration structure by rubbing the back stopper or its outer periphery. A contaminated water treatment device to be used. In forming the flow path on the joint surface of the plate-shaped ring body,
In addition to the taper grooves having a predetermined length intersecting each other in a zigzag manner to form a joint boundary in the front-rear direction, an inclined taper groove whose one of the left and right directions is deeper or shallower is formed. The contaminated water treatment apparatus according to claim 1, wherein a joint boundary is also formed. The contaminated water treatment apparatus according to claim 1 or 2, wherein the plate-shaped metal ring body is made of stainless steel or the like, and is a material that retains acid resistance and alkali resistance, and also retains flex resistance.