JPH0642926B2 - Cylindrical solid-liquid separator - Google Patents

Description

TECHNICAL FIELD The present invention relates to a solid-liquid mixed liquid of various types, that is, a tubular solid-liquid separator suitable for all industrial fields such as food as well as industrial use. .

[Conventional technology]

This type of cylindrical solid-liquid separation device is known to have various configurations, but it completely removes filter residue in various general-purpose processing liquids including special processing liquids such as adhesiveness and viscosity. What effectively separates as a mold component is not yet known.

The present inventor has developed Japanese Patent Application No. 1-32874 and has proposed a technique effective for solid-liquid separation.

That is, a spiral filter is provided with a slight non-contact interval in a cylindrical tube body that is provided with a cylindrical filter having a desired filtration hole and allows the liquid to be treated to be filtered and passed from the inside to the outside of the cylindrical filter. A screw having blades is rotatably inserted, and an inlet for introducing the liquid to be treated is provided on one side of the cylindrical tube body along the rotational transfer direction of the screw, and a solid content is discharged having a filter residue discharge port on the other side. A tubular solid-liquid separation device characterized in that the screw is provided with a scraper mechanism capable of peeling off a solid filtration component attached by sliding contact with the inner peripheral surface of the cylindrical filter. Further, the scraper mechanism is characterized in that a scraping piece having one end fixed to a shaft rod provided on a spiral blade is configured to be in sliding contact with an inner peripheral surface of a cylindrical filter, and a cylindrical solid-liquid separation is provided. Related to the device Than it is.

[Problems to be Solved by the Invention]

However, in the above-mentioned prior art, the scraper mechanism is provided separately from the spiral blade, and further, since the filter scrap is peeled off, clogging such as when the processing liquid has adhesiveness, There has been a problem that the solid matter of the filter residue is still insufficiently removed.

On the other hand, the present inventor has developed and proposed Japanese Patent Application No. 1-107834, but the consideration for effective discharge and removal of the filter residue was still insufficient.

The present invention is not limited to an adhesive or viscous treatment liquid,
An object of the present invention is to provide a novel tubular solid-liquid separation device that is effective for all types of liquids to be treated and not only eliminates clogging, but also makes it possible to effectively take out and disassemble and purify the solids of filter residue. To do.

[Means for Solving the Problems]

That is, the present invention is provided with a tubular filter element having a desired filtration hole, and the tubular filter is provided in a tubular tube body through which the liquid to be treated can be filtered and passed from the inside to the outside of the tubular filter element. A screw having spiral blades provided with a scraper mechanism capable of sliding contact with the inner peripheral surface of the element is rotatably inserted, and both ends of the screw shaft are rotatably supported. The diameter of the screw shaft is gradually increased, the pitch interval of the spiral blades is gradually reduced, and further, an inlet for introducing the liquid to be treated is provided on one side of the tubular body, and a filter residue discharge port is provided on the opening surface on the other side. A solid content discharging mechanism is provided, and the solid content discharging mechanism is composed of a lid mechanism having a handle, a screw rod, and a lid, and a support mechanism for screwing and supporting the screw rod of the lid mechanism. A cylindrical solid-liquid separation device characterized in that the outer peripheral edge of the lid and the opening edge of the filter residue discharge port are brought into contact with and separated from each other to change the opening degree to continuously obtain a filter residue solid content. In addition, the solid content discharging mechanism further includes a radial support rod and a cylindrical tube that axially support one end of a screw shaft provided on an opening surface on the filter residue discharge side of the cylindrical tube having a cylindrical filter element. A filter residue discharge port formed of a ring body that engages and supports the ends, a support frame that supports the filter residue discharge port ring body, a stop plate that fixes the support frame, and a center of the stop plate. And a screw tube body which has a screw hole for screwing a screw rod of the lid mechanism on the same axis as the screw shaft and which has a screw groove on the outer periphery for screwing with the support mechanism, and which is fixed to this screw tube body. Provided is a tubular solid-liquid separation device, characterized in that it is configured with a handle that can move the tube back and forth. That.

[Action]

The fluid to be processed can be obtained as a filtered fluid by leaving a solid content equal to or larger than the size corresponding to the filtering hole formed in the filter element by the rotating action of the spiral blade. Then, a scraper mechanism is provided on the peripheral surface of the spiral blade, and the solid content can be always transferred in the rotational direction of the screw while the solid content is constantly removed by a scratching action that works by slidingly contacting the peripheral surface of the filter element. Therefore, the filtering action is performed without difficulty.

Further, since the solids of the filter residue are formed such that the screw diameter is gradually increased and the pitch interval of the spiral blades is gradually decreased, the throttling effect becomes more effective in the process of being transferred by the spiral blades, and the cylindrical tube The filter residue is gradually accumulated and stored on the filter residue outlet side of the body. Although the opening time of the solid content discharge mechanism differs depending on the type of fluid to be treated, after the solids of filter residue are sufficiently accumulated on the filter residue outlet side, the handle of the lid mechanism is rotated by a certain amount to support the screw rod. Through the opening to open the contact between the outer peripheral edge of the lid and the opening edge of the filter residue discharge port, and by forming a minute gap, the filter cake solids that are successively accumulated and accumulated are continuously formed. It can be discharged.

Also, by rotating the screw tube body that is screwed with the support mechanism using the handle to release the pressure on the stop rod, the ring frame of the support frame and the filter residue discharge portion is moved in the rotation direction of the screw tube body. By moving, the opening surface on the filter residue discharge port side of the tubular body is opened, the shaft support with the screw shaft is removed, and the used machine parts such as the tubular filter in the tubular body can be disassembled and cleaned.

〔Example〕

 1 to 3 show an embodiment of the present invention.

Referring to the drawing, reference numeral 1 denotes a cylindrical filter element in which a cylindrical filter element has a rectangular cross section, and as shown in FIG. 3, while holding a flat bottom surface 2a of a wire 2 having an isosceles triangular cross section inside, With the apex of the apex angle 2b facing outward, the spiral groove 4 bored in the inner periphery of the perforated frame cylinder 3 is engaged and wound, and a slit hole 5 of a desired size is formed between the adjacent wires 2. At the same time, the inner peripheral surface of the wire 2 wound by the flat bottom surface 2a can be formed into a flat α. However, the cylindrical filter element 1 may be replaced by a truncated cone filter element (not shown) having a trapezoidal vertical cross section.

Reference numeral 6 denotes a cylindrical tube body in which one or more cylindrical filter elements 1 each having a slit hole 5 (filtering hole) of a desired size are selectively fixed, and an inlet 7 for the liquid to be treated is provided on one side and the other. A solid content discharge mechanism 9 having a filter residue discharge port 8 is provided on each of the opening surfaces 8a on the side.

Reference numeral 10 denotes a screw provided with a spiral blade 12 formed by fixing a large number of divided pieces 12a to a screw shaft 11. The screw 10 is rotatably mounted inside the cylindrical filter element 1 and the spiral blade 12 is The cylindrical filter element 1 is held in a non-contact state with a small space kept between the flat inner peripheral surface of the filter element 1 and a scraper mechanism S is provided to make contact with the inner surface of the cylindrical filter element 1 as described later.

However, the spiral blade 12 may be formed by using not a divided piece but an ordinary long object that is continuously twisted (not shown).

By the way, the screw 10, that is, the screw shaft 11 has its diameter gradually increased toward the rotational transfer direction of the screw 10. Moreover, the spiral blade 12 has a rotational pitch of the liquid to be discharged from the inlet 7. In addition to being formed in the direction of transferring to the outlet portion 8, the pitch interval and filter residue are gradually narrowed toward the discharge outlet portion 8 side to achieve an effective juice extraction effect.

Both ends 11a and 11b of the screw shaft 11 are rotatably supported at both ends inside the tubular body 6.

Reference numeral 13 denotes a drive mechanism, which is connected to the screw shaft 11 of the screw 10 from an electric motor 14 via a speed reducing mechanism 15 such as a belt and a gear.

The solid content discharging mechanism 9 constitutes a part of a lid mechanism P formed by a handle 16, a screw rod 17 and a lid body 18, and a device frame 19 for screwing and supporting the screw rod 17 of the lid mechanism P. The support mechanism Q and the taper surface 20 corresponding to the outer peripheral edge of the lid 18 and the taper surface 21 corresponding to the opening edge of the filter residue discharge port portion 8 are opened and closed to freely open and close the opening. It can be changed.

Reference numeral 22 denotes a scraper piece formed of a synthetic resin or the like of the scraper mechanism S, which is provided along the end of the spiral blade 12, and the scraper piece 22 is always in contact with the flat inner peripheral surface α of the cylindrical filter element 1. This ensures the removal of filter residue.

Reference numeral 23 denotes a tubular body for taking out the filtrate, which is fitted and fixed in a portion of the tubular body 6 corresponding to the outer periphery of the tubular filter element 1.
Reference numeral 4 denotes a sealing fitted between the tubular body 23 and the outer periphery of the cylindrical filter element 1, which is fixed as a partition near the filter residue discharge port side, and is a filter hole (slit hole) of the cylindrical filter element 1. It prevents the minute amount of filter residue that is extruded and leaches out more continuously from being mixed in the normal state, that is, the filtrate that is normally filtered. Reference numeral 25 is a take-out tube for taking out the extruded filter residue, and 26 is the tube body 2.
Reference numeral 27 denotes a filtrate outlet pipe provided at a part of 3, and reference numeral 27 denotes a hopper provided below the filter residue discharge port 8.

With the above configuration, a desired liquid to be filtered (liquid to be treated), for example, a solid-liquid mixed liquid such as soy milk stock solution is supplied into the tubular body 6 from the inlet 7 and the screw 10 is rotated by the drive mechanism 13. By doing so, the soy milk stock solution is transferred in the tubular body 6 by the spiral pitch of the spiral blades 12, and only the liquid component that can pass through the filtering holes, that is, the slit holes 5 of the cylindrical filter element 1 is taken out as the soy milk of the filtered liquid. It is obtained from the outlet pipe 26 through the pipe body 23. Since this type of soymilk stock solution contains a solid content having high adhesiveness and adhesiveness, the slit hole 5 is immediately closed, so-called clogging is likely to occur, but an obstacle such as a pillar is formed on the end surface of the spiral blade 12. Since the scraper mechanism S is provided without a scraper, the scraps causing the clogging are immediately removed by the scraper piece 22,
Since the screw 10 is sequentially delivered and transferred forward, no inconvenience due to clogging occurs during the rotation of the screw 10.

The filter residue is sequentially sent forward by the spiral blade 12 of the screw 10, and the concentration of the filter residue gradually increases in the process of the transfer, in other words, the liquid content gradually decreases.

Moreover, the screw shaft 11 has a gradually increasing shaft diameter,
Since the pitch interval of the spiral blades 12 is also gradually reduced, the throttling effect is further increased, and the filter residue is accumulated and accumulated in the vicinity of the filter residue discharge port 8 in sequence. Therefore, in consideration of the desired time, the solid content discharging mechanism 9 is actuated to rotate the handle 16 and minutely open the respective tapered surfaces 20 and 21 of the lid 18 and the filter residue discharging port 8 to make a small amount of filter residue. Is discharged and taken out into the hopper 27 in a liquid-removed state.

However, if the rotation amount of the handle 16 is controlled using a scale or the like (not shown) and the opening degree is freely adjusted, a desired liquid-removed filter residue can be continuously taken out.

Next, another embodiment will be described with reference to FIG.

This embodiment has the configuration of the first embodiment, only the configuration of the solid content discharging mechanism including the filter residue discharge port is different, and the other configurations and operations are exactly the same as those of the first embodiment. The description of the same and equivalent configurations, and their actions and effects will be omitted.

The same components as those in the first embodiment are designated by the same reference numerals. That is, solids discharge mechanism 9 ₁ shown in Fig. 4, the radial pivotally supporting one end of the screw shaft 11 provided on the opening surface 8a of the filtration scum discharge side of the cylindrical tube 6 having a cylindrical filter element 1 An annular body 2 for engaging and supporting the support rod 28 and the end of the tubular body 6.
A filtration scrap outlet portion ₈₁ more becomes a 9, a support frame 30 which supports the annulus 29 of the filtration scrap outlet portion _81, the support frame 30
And a screw hole 32 for screwing the screw rod 17 of the lid mechanism P on the same axis as the screw shaft 11 at the center of the stopper plate 31 and at the outer periphery with the support mechanism Q. It is composed of a screw tube body 34 having a thread groove 33, and a handle 35 that is fixed to the screw tube body 34 and can move the screw tube body 34 back and forth.

Then, it is possible to newly using the handle 35 that is wiped separated from the screw shaft 11 the solids discharge mechanism 9 ₁ Remove from the cylindrical tube 6, brush cleaning.

Two embodiments of the present invention have been described above. In particular, in addition to the illustrated configuration of the cylindrical filter element, the same applies to a cylindrical filter having a desired filtering hole such as a punching metal or a porous structure. Of course, it can be implemented.

Further, the cylindrical tube body 6 may stand upright not vertically but vertically.

However, the screw shaft of the spiral blade can be formed in a hollow shape in order to make it lightweight.

Further, the gradual increase in the diameter of the screw shaft and the gradual decrease in the pitch interval of the spiral blades can be provided not only in the entire region but also partially along the portion of the tubular body near the filter residue discharge port.

〔The invention's effect〕

According to the present invention, the desired liquid to be introduced and transferred by the action of the spiral blade is filtered by the cylindrical filter element, and at the same time, the clogging phenomenon is caused by the scraper mechanism provided on the end surface of the spiral blade. Since the filtered solid matter has no obstacles, it can be sent in the rotational transfer direction of the screw even if it has high viscosity, and can be removed if necessary.

That is, since the scraper mechanism is always in contact with the filter surface and is rotating, the scraper mechanism can efficiently perform the squeeze filtration effect. In addition, since the solid content discharging mechanism can variably adjust the opening degree of the filter residue opening surface by rotating the handle, it is possible to always maintain an accurate opening degree and obtain the filter residue in a desired liquid removal state. Therefore, the soybean milk and the okara can be efficiently separated from the soybean milk stock solution, and can be widely used as various foods such as oil and konjak, and solid-liquid separation of other mechanical cutting oils.

Further, the solid content discharging mechanism can open and close the opening surface of the cylindrical tubular body on the filter residue discharging side for disassembly, and thus has effects such as easy purification.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view showing an embodiment when applied to a tubular solid-liquid separation device according to the present invention, and FIG.
A sectional view taken along the line II, FIG. 3 is a partially cutaway perspective view of the above cylindrical filter element, and FIG. 4 is a sectional view of the essential part showing another embodiment of the present invention. 1 ... Cylindrical filter element 5 ... Slit hole 6 ... Cylindrical tubular body 8,8 ₁ ... Filter residue discharge port 9, 9 ₁ ... Solid-liquid component discharge mechanism 10 ... Screw 11 ... Screw shaft 12 ...... Spiral blade 16,35 ...... Handle 17 …… Screw 18 …… Lid body P …… Lid mechanism Q …… Support mechanism S …… Scraper mechanism 28 …… Support rod 29 …… Annulus 30 …… Support frame 31 ...... Stop plate 32 ...... Screw hole 33 ...... Screw groove 34 ...... Screw tube

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B01D 29/37 29/94 // B30B 9/14 G 9/18

Claims (2)

[Claims] 1. A tubular filter element having a tubular filter element having a desired filtering hole, wherein the tubular filter element is provided in a tubular tube body through which a liquid to be treated can be filtered and passed from an inner side to an outer side of the tubular filter element. A screw having spiral blades having a scraper mechanism capable of sliding contact with the inner peripheral surface of the screw is rotatably inserted, and both ends of the screw shaft are rotatably supported, and the screw is moved along the rotational transfer direction of the screw. The diameter of the shaft is gradually increased, the pitch interval of the spiral blades is gradually reduced, and moreover, the inlet for the liquid to be treated is provided on one side of the tubular body and the solids having a filter residue outlet on the opening surface on the other side. The solid content discharging mechanism is provided with a lid mechanism having a handle, a screw rod, and a lid, and a support mechanism for screwing and supporting the screw rod of the lid mechanism. Out of Tubular solid-liquid separator, characterized in that the edge and the opening edge of the filtration debris outlet portion separable closing to be continuously filtration scum solids by varying the degree of opening. 2. A solid content discharging mechanism, wherein a radial support rod for axially supporting one end of a screw shaft provided at an opening surface of a cylindrical tubular body having a tubular filter element on the filter dust discharging side and an end of the tubular tubular body. A filter residue discharge port formed of a ring body that engages and supports the portion, a support frame that supports the ring structure of the filter residue discharge port portion, a stop plate that fixes the support frame, and a center of the stop plate. A screw tube body having a screw hole through which a screw rod of a lid mechanism is screwed on the same axis as the screw shaft and having a screw groove for screwing with a support mechanism on the outer periphery, and the screw tube fixed to the screw tube body. The tubular solid-liquid separation device according to claim 1, wherein the tubular solid-liquid separation device comprises a handle that can move the body back and forth.