JP3188656B2 - Solid-liquid separation processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating and processing liquid waste and sludge (solidified sludge) from food waste sludge, such as shochu and squeezed residue of various juices and raw okara generated in the process of producing tofu. It is.

[0002]

2. Description of the Related Art Conventionally, the disposal of shochu squeezed residue has to be entrusted to a specialized trader and dumped in the ocean, etc., which is not only expensive, but also requires complaints from nearby residents at the disposal site. Had become a target. In addition, the processing of food waste such as raw okara generated during the manufacturing process of tofu was carried out by a sedimentation treatment method that required many steps, so the equipment required for the treatment was large and the economic burden was large. .

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of such a situation.
Structural simplicity and replacement of mesh filter, agitating blade and brush which are main components are possible, and waste water treatment process of food waste sludge such as shochu and various juice juice slag, raw okara etc. generated in the manufacturing process of tofu The object of the present invention is to provide a solid-liquid separation treatment apparatus suitable for use in the pretreatment step in the above.

[0004]

SUMMARY OF THE INVENTION To achieve this object, the present invention relates to a treatment apparatus for separating waste sludge such as shochu squeeze into liquid and sludge.
And a substantially cylindrical processing tank 10 having a top surface opening provided with a sludge discharge port 38 provided with an opening / closing lid plate 40 on the side surface, and an upper sludge stirring section 1 inside the processing tank 10.
A partition frame 15 provided above the drain port 12 and at the lower end of the sludge discharge port 38 in a radially horizontal manner so as to partition into a lower drain section 6 and a lower drain section 17; The fixed perforated plate 18 and the perforated plate 18
It is rotatably supported by a mesh filter 20 mounted and replaceable on the top, a center bearing 19 on the partition frame 15 and a center bearing 26 of an opening / closing lid 24 having a sludge inlet 25 in the processing tank 10. ,
A rotating shaft constituted by a square pipe shaft 27 and a round pipe shaft 28 inserted through the square pipe shaft 27 and rotated by a rotating mechanism attached to the opening / closing lid 24; Four arms 34 radially fixed to the four outer peripheral surfaces of the arm 27 at substantially equal angles, and a resin band-plate-shaped stirring blade alternately and interchangeably attached to the lower end of each of the two arms. 35 and a resin strip-shaped brush 36, and the lower ends of the two stirring blades 35 are slightly turned in the rotation direction so that they can be effectively scraped even when the amount of sludge accumulated is large. The two brushes 36 are formed in a bow shape, and the two brushes 36 have a comb-shaped brush portion formed at the lower end thereof.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings and the operation thereof. FIG. 1 is a front view of a partial cross section of an example of the apparatus according to the present invention, FIG. 2 is a partially omitted plan view showing the inside of a processing tank, and FIG. 3 is a partially omitted plan view of a perforated plate. 4, FIG. 4 is a plan view of a mesh filter partially omitted, FIG. 5 is an enlarged cross-sectional view of a partially omitted view showing a perforated plate and an attached state of the mesh filter, and FIG.
7 is a front view showing an attached state of the stirring blade, FIG. 7 is a partially omitted front view showing an attached state of the brush, FIG. 8 is a side view showing an attached state of the stirring blade and the brush, and FIG. 9 is FIG. 10 is a cross-sectional view of the sludge discharge port, FIG. 11 is a side view of the sludge discharge port, and FIG. 12 is a front view of the same. In these figures, the device of the present invention
This is a single-stage vertical structure processing device that separates waste sludge such as shochu squeeze into liquid and sludge (solidified sludge), and includes a processing tank, a perforated plate, a mesh filter, a rotating shaft, a rotating mechanism, and a stirring blade. And a brush.

[0006] The processing tank 10 has a cylindrical shape with an upper surface opening, and the lower portion has a bowl shape. Collar part 1 in opening
1 and a drain port 12 at the bottom, and an elbow 13 is welded to the drain port 12. The processing tank 10 is supported by four supporting legs 14 welded to the side surface of the body at equal intervals.

In the processing tank 10 and in the drain port 12
In a slightly upper part, a partition frame 15 is provided in a horizontal radial shape and is divided into upper and lower parts. The upper part is a sludge stirring part 16 and the lower part is a drainage part 17. Partition frame 15
A perforated plate 18 such as a punching plate has a central bearing 19 thereon.
Are welded except for the part of the perforated plate 18
On the upper side, a mesh filter 20 made of metal or a tough and flexible cloth is exchangeably mounted.
More specifically, the mesh filter 20 includes inner and outer annular attachment plates 21 and 22 having inner and outer peripheral edges that are flat, and a perforated plate 18.
The mesh filter 20 can be replaced by removing the screws 23 and removing the inner and outer annular mounting plates 21 and 22.

As shown in FIG. 1, the center bearing 19 on the partition frame 15 and the opening flange 1 of the processing tank 10 are provided.
Opening / closing lid 2 having sludge inlet 25 bolted to 1
The vertical axis is rotatably supported between the four center bearings 26. The vertical axis is, as shown in FIG. 9, a round pipe shaft 28 is inserted through a square pipe shaft 27 and its upper and lower steps are supported by central bearings 26 and 19,
The square pipe shaft 27 and the round pipe shaft 28 are fixed in place by a plurality of bolts, and are rotatably supported by a rotating mechanism. The rotation mechanism of the round pipe shaft 28
A spur gear 29 fixed to the upper end of a round pipe shaft 28 projecting on the opening / closing lid 24, a spur gear 30 meshing with the gear 29,
It is composed of the spur gear 30 and a driving motor 31 connected thereto,
The rotation of the drive motor 31 rotates the round pipe shaft 28 via the spur gears 30 and 29. And
The spur gears 29 and 30 and the drive motor 31 are covered by a cover 33 having an opening / closing lid 32.

A stirring blade and a brush are exchangeably attached to the square pipe shaft 27 constituting the rotating longitudinal axis via an arm 34 having a substantially right triangular shape as viewed from the front, which is welded thereto. More specifically, as shown in FIG. 2, four arms 34 are welded radially at substantially equal angles, and a lower end of each arm 34 has a band-shaped stirring blade 35 and a brush 3.
6 are attached to each other with bolts by being sandwiched between band-shaped attachment plates 37, and the stirring blades 35 and brushes 36 can be replaced by removing the attachment plate 37. The stirring blades 35 and the brushes 36 are attached alternately in total of two each. The stirring blades 35 and the brushes 36 are made of resin such as rubber, and the brush 36 has a comb-shaped brush portion at a lower end. The stirring blade 35 and the brush 36 have a length substantially equal to the radius of the sludge stirring unit 16, and the lower ends thereof rotate integrally with the vertical rotation shaft in a state in contact with the surface of the mesh filter 20. Sludge is agitated at 35 and brush 3
6 prevents the mesh filter 20 from being clogged. In particular, as shown in FIG. 8, the lower end of the stirring blade 35 has a slightly arcuate shape in the rotation direction (the direction of the solid arrow A shown in FIG. 2), and has a sludge (solidified sludge). ) Can be effectively scraped even when the amount of deposition increases.

The sludge (solidified sludge) deposited on the mesh filter 20 in the sludge stirring section 16 is discharged outside through a sludge discharge port 38 provided on the side face by a rotating stirring blade 35 after solid-liquid separation processing. It has become so. More specifically, a pair of guide rails 39 having an L-shaped cross section are welded in the longitudinal direction at both ends of the discharge port 38 of the opening on the side of the sludge stirring section in the processing tank 10, and are vertically movable along the guide rails 39. An opening / closing lid plate 40 for opening and closing the discharge port 38 is provided.

Next, the operation will be described. A predetermined amount of waste sludge, such as shochu squeeze, which has been pumped through a hose 41 by a pump (not shown), is injected into the sludge stirring section 16 of the processing tank 10 from a sludge inlet 25.
Next, the spur gears 30 and 2 receive the rotation of the drive motor 31.
When 9 rotates, this rotational force is transmitted to the round pipe shaft 28, and the square pipe shaft 27 rotates integrally therewith, and the stirring blade 35 and the brush 36 rotate in the direction of the solid arrow A shown in FIG. While the sludge is stirred by the stirring blades 35, the separated waste liquid flows into the drain part 17 through the mesh filter 20, which is prevented from being clogged by the brush 36, and the perforated plate 18, and falls into the drain port 12, the elbow 13. Is discharged to the outside through On the other hand, the sludge (solidified sludge) deposited on the mesh filter 20 is scraped by the rotating stirring blade 35 and discharged to the outside through a discharge port 38 via a chute or the like (not shown).

Modifications of the device according to the invention are possible, and FIG. 13 shows another modification. This example has a two-stage vertical structure in which the sludge stirrer has two upper and lower stages, and the upper mesh filter in the upper stirrer where the primary treatment is performed has a coarse structure, and the lower stage where the secondary treatment is performed is used. The lower mesh filter in the stirrer has a dense mesh structure. In comparison with FIG. 1, only parts having different configurations are designated by reference numerals starting with numeral 50, and the same parts are denoted by the same reference numbers. And the same parts will not be described repeatedly in detail.

Referring to FIG. 13, a processing tank 50 has a cylindrical upper processing tank 51 having upper and lower surfaces opened on the lower processing tank 10 and having flanges 52 and 53 at its upper and lower edges. It is a connected structure. The bottom surface of the upper processing tank 51 is a surface of a horizontal partition frame 54 extending radially to a lower end flange portion 53 of the upper processing tank 51. On the partition frame 54, except for a central bearing 55, a perforated plate 18 is provided. While being welded, on the perforated plate 18,
A mesh filter 20 is provided so as to be replaceable by inner and outer annular attachment plates 21 and 22. The upper mesh filter 20 has coarser eyes, and the lower mesh filter 20 has finer eyes.

The processing tank 50 includes an upper processing tank 5.
1, the lower end thereof is axially supported by the central bearing 19 of the lower processing tank 10 and the upper end thereof is axially supported by the central bearing 26 of the opening / closing lid 24 to form a common round pipe shaft 56. It is provided so as to be rotatable by a rotating mechanism. The common round pipe shaft 56 in the upper and lower sludge stirring sections 57 and 16 in the upper and lower processing tanks 51 and 10 is attached to the round pipe shaft 56 through the square pipe shaft 27 and the arm 34 which are externally fixed to the round pipe shaft 56, respectively. The stirrer blades 35 and the brushes 36 are attached alternately as interchangeable by 37, and the common round pipe shaft 56 is rotated by a rotation mechanism including the spur gears 29, 30 and the drive motor 31, thereby allowing the upper and lower stirrer blades 35 to rotate. The brush 36 simultaneously rotates in the same direction,
The primary processing is performed in the upper processing tank 51, and then the secondary processing is performed in the lower processing tank 10.

Next, the operation of this embodiment will be described. Sludge pumped by a pump (not shown) via the hose 41 is injected into the upper processing tank 51 from the input port 25 in a predetermined amount. Next, the spur gears 30 and 29 rotate by receiving the rotational force of the drive motor 31, and the upper and lower stirring blades 35 and the upper and lower brushes 36 rotate integrally with the common round pipe shaft 56, and the sludge in the upper processing tank 51 is rotated. Is a rotating stirring blade 3
While being stirred by 5, the waste liquid is firstly separated by a coarse mesh filter 20 which is prevented from being clogged by a brush 36, and flows down into the sludge stirring section 16 in the lower processing tank 10 through the upper porous plate 18. The waste liquid is secondarily separated by the mesh filter 20, which is prevented from clogging by the brush 36, while being agitated by the similarly rotating stirring blades 35 in the stirring section 16, and drained from the perforated plate 18. It flows down into the part 17 and is discharged to the outside through the drainage port 12 and the elbow 13. On the other hand, sludge (solidified sludge) deposited on the mesh filter 20 in the upper processing tank 51 and the lower processing tank 1
Sludge (solidified sludge) deposited on the mesh filter 20 in the inside 0 is raked by the rotating stirring blades 35 and discharged to the outside from the upper and lower discharge ports 38 via chutes (not shown).

The mesh filter 20 and the stirring blade 35,
When the brush 36 needs to be replaced, in the case of the single-stage vertical structure shown in FIG. 1, the opening / closing lid 24 is removed and the round pipe shaft 28 is removed from the bearings 19 and 26. 3
5. Since the brush 36 can also be taken out of the processing tank 10, the mesh filter 20 can be removed and replaced by removing the inner and outer annular attachment plates 21 and 22, and the attachment plate 37 can be removed. If the stirring blade 3
5. The brush 36 can be replaced. In the two-stage vertical structure shown in FIG. 13, the open / close lid 24 is removed, and the connection between the upper processing tank 51 and the lower processing tank 10 is removed, and the common round pipe shaft 56 is mounted on the bearings 19, 55, Escaped from 26,
When the lower stirring blade 35 and the lower brush 36 are taken out of the lower processing tank 10 together with the upper processing tank 51 and the inner and outer annular mounting plates 21 and 22 are removed, the lower mesh filter 20 can be replaced, and the mounting plate 37 can be replaced. If you remove it,
The lower stirring blade 35 and the lower brush 36 can be replaced. For replacement of the upper mesh filter 20 and the like, if the lower square pipe shaft 27 which is bolted is removed from the common round pipe shaft 56, the upper stirring blades 35 and the like can be taken out of the upper processing tank 51. , Inner and outer annular mounting plate 2
By removing 1, 22 the upper mesh filter 20 can be replaced. Also, if the lower square pipe shaft 27 is removed from the common round pipe shaft 56, the upper stirring blade 35 and the upper brush 36 can be taken out of the upper processing tank 51. Therefore, by removing the attachment plate 37, the upper stirring blade 35 and the upper stirring blade 35 are removed. The brushes 36 can be replaced respectively.

[0017]

Thus, according to the present invention, food waste sludge such as shochu and various juice juice slag and raw okara generated during the production of tofu can be effectively converted into sludge (solidified sludge) and liquid. It can be separated and has a simple structure.
In addition, since it can be transported or the like, it is suitable for use in a pretreatment step in a wastewater treatment step.

Further, according to the present invention, since the mesh of the upper mesh filter is coarse and the mesh of the lower mesh filter is dense in a two-stage vertical structure, waste sludge from low concentration to high concentration can be removed. Can be widely separated.

[Brief description of the drawings]

FIG. 1 is a front view of a partial cross section of an example of a solid-liquid separation processing device according to the present invention.

FIG. 2 is a partially omitted plan view showing the inside of a processing tank.

FIG. 3 is a plan view of a perforated plate partially omitted.

FIG. 4 is a plan view of a mesh filter partially omitted.

FIG. 5 is a partially omitted enlarged cross-sectional view showing an attached state of a perforated plate and a mesh filter.

FIG. 6 is a front view showing an attached state of a stirring blade.

FIG. 7 is a partially omitted front view showing a mounted state of a brush.

FIG. 8 is a side view showing an attached state of a stirring blade and a brush.

FIG. 9 is a sectional view taken along line 9-9 in FIG. 6;

FIG. 10 is a cross-sectional view of a sludge discharge port portion.

FIG. 11 is a side view of a sludge discharge port portion.

FIG. 12 is a front view of the same.

FIG. 13 is a partial cross-sectional front view showing another example of the present invention.

[Explanation of symbols]

 10, 50 Processing tank 12 Drainage port 14 Support leg 15, 54 Partition frame 18 Perforated plate 19, 55, 26 Center bearing 20 Mesh filter 21, 22 Ring attachment plate 24 Opening / closing lid 25 Sludge inlet 27 Square pipe shaft 28 Round Pipe shaft 29, 30 Spur gear 31 Drive motor 33 Cover 34 Arm 35 Stirrer blade 36 Brush 37 Attachment plate 38 Sludge discharge port 51 Upper processing tank 56 Common round pipe shaft

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B01D 29/01-29/075 C02F 11/12 D21D 5/02

Claims (1)

(57) [Claims] 1. A treatment apparatus for separating waste sludge such as shochu squeeze into liquid and sludge, comprising a drain port (12) at the bottom and an open / close lid plate (40) at a side surface. ), A substantially cylindrical processing tank (10) having an upper surface opening provided with a sludge discharge port (38), and an upper sludge stirring section (16) and a lower liquid discharging section inside the processing tank (10). In order to partition to (17), the drain port (1)
2) A partition frame (15) provided radially horizontally above the lower end of the sludge discharge port (38) and above the sludge discharge port (38).
And a perforated plate (1) placed and fixed on the partition frame (15).
8), a mesh filter (20) mounted so as to be exchangeable on the perforated plate (18), a central bearing (19) on the partition frame (15) and sludge charging in the processing tank (10). A square pipe shaft (27) rotatably supported by a center bearing (26) of an opening / closing lid (24) having a mouth (25), and being inserted into the square pipe shaft (27); A rotating shaft that is rotated by a rotating mechanism provided on the opening / closing lid (24); and 4 that are radially fixed to the four outer peripheral surfaces of the square pipe shaft (27) at substantially equal angles in the rotating shaft. Arm (34), a resin band-shaped stirring blade (35) and a resin band-shaped brush, which are alternately attached to the lower end of each of the arms (34) so as to be exchangeable by two each. (36) and In addition, the lower ends of the two stirring blades (35) are formed in a slightly arcuate shape in the rotation direction so that they can be effectively scraped even when the amount of sludge accumulated is large. A solid-liquid separation processing apparatus characterized in that the brushes (36) have a comb-shaped brush portion formed at the lower end thereof.