JPH10314513A - Method for treating soil water generated by laver cleaning and device for treating soil water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recover soil water generated by cleaning a laver to be supplied to a laver making machine and prevent water for agriculture from becoming polluted and save on labor for conveying brine through recycling the recovered soil water. SOLUTION: An endless sieve net 1 made up of a fine mesh is passed around a stretch between a starting end and a terminal sprocket 2, 3 and the upper side transition part 1' of the sieve net 1 is caused to obliquely move upward from a starting end part toward a terminal part. Under this state, a soil water generated by the cleaning of a laver is supplied into a waterstop frame 4 erected on the top of the upper side transition part 1' and a fine solid matter contained in the soil water is filtered to leave it above the sieve of the upper side transition part 1' and a moisture is filtered to drop through the sieve so that the moisture is recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is to recover washing water from papermaking wastewater discharged from a laver papermaking machine and from washing wastewater in the stage of producing nori and water raw materials before supply, and to prevent the washing wastewater from flowing out. The present invention relates to a method for treating laver washing and sewage to be recycled and a device therefor.

[0002]

2. Description of the Related Art Conventionally, laver producers have been striving to store and wash raw laver collected from the sea and supply it to an automatic laver machine to produce better products. A large amount of seawater used for this washing is drawn from the offshore by ship, relocated to a shore, transshipped to a car, and transported to a work site. This effort and time are not easy, and in addition, the seawater after washing is discharged to the creeks, etc. Give annoyance. In order to solve this problem, it is necessary to minimize the discharge of seawater by filtering and reusing the dirty seawater used for washing.

Since the seawater used for washing is dirty, it is discharged as it is, or is reused by straining with a sifting net. However, the mesh is clogged with dirt in a short time, and the mesh is drained. is there. Still, I use it while washing the clogs by hand.

[0004]

The raw seaweed collected is
It is stored in a stirrer together with seawater, washed, dehydrated, cut, blended, made and dried to produce dry laver.
To reuse the washed and dewatered sewage in this process,
This device was invented.

[0005] To use seawater satisfactorily in a work place, a large amount of seawater is required every day. However, preparing a large amount of seawater requires a great deal of labor and time, and all producers use this seawater. If it is released, it quickly turns into salt water, such as creeks. However, an object of the present invention is to minimize the discharge of seawater by replenishing a shortage while reusing a small amount of seawater, thereby preventing pollution caused by agricultural water pollution.

[0006]

In order to achieve the above object, the present invention provides an endless screen made of fine sieves wound between a start end and an end sprocket, and the upper transition portion of the screen is moved from the start end to the end end. In this state, laver washing sewage is supplied into a water stop frame erected at the upper part of the upper transition part in this state, and fine solids in the sewage are put on a sieve of the upper transition part. ,
Nori washing and sewage treatment method characterized in that the water is collected under the sieve, a parallel endless chain is wrapped around the start and end sprockets provided on the machine frame, and an endless sieve network consisting of fine sieves is provided between the chains. A seaweed washing sewage supply box with an open lower surface above the sieve mesh and the upper transition part of the chain is provided, and a water stop frame is vertically provided at a lower end start end and both lower end sides of the supply box, and Stretchable water-stop belts are erected along the chain at both ends of the endless sieve mesh and the endless chain, and the upper transition portions of the endless sieve mesh and the parallel endless chain are directed upward toward the terminal sprocket. A seaweed washing and sewage treatment apparatus that is inclined at a lower end of the parallel endless chain is provided with a guide sprocket that meshes in the middle of the lower transition portion, and the start and end sides of the lower transition portion are directed downward toward the guide sprocket with the sprocket as a boundary. And move downward A brush for scraping fine solids is provided at the start end of the brush, and a backwash water jet nozzle port is provided downward above the end side of the lower transition portion, and a fine solid outflow gutter is provided below, and The seaweed washing and sewage treatment apparatus according to the second aspect of the present invention, wherein a fine solid substance receiving gutter is provided at the lower part. The seaweed washing and sewage treatment according to the second or the third aspect of the invention, wherein a water receiving tank provided with a recovery port is provided at the lower part of the upper transition part. It is composed of devices.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a seaweed washing sewage supply box 7 is provided.
The raw seaweed is stirred and washed and dewatered sewage is supplied to the supply port 7a. The sewage is sieved in the water-stopping frame 4 on the rotating endless sieving network 1 composed of fine sieves (100 to 200 mesh). After passing through the upper transition portion 1 ′ of the net 1, it enters the lower water receiving tank 14 as a sieve below and receives fine solids (100 to
(200 mesh or more) remains on the upper transition portion 1 'of the sieve mesh 1 as the upper portion of the sieve, moves toward the terminal sprocket 3 with the upward shift of the sieve mesh 1, and bypasses the sprocket 3 to move to the lower transition portion 1 And moves downward toward the guide sprocket 9 side.

During the downward movement, the fine solids attached to the lower surface of the sieve net 1 fall into the receiving trough 13 below the scraping brush 10 and descend along the inclination of the receiving trough 13 to be collected. Collected in 16.

When the sieve mesh 1 bypassing the guide sprocket 9 rises toward the leading end sprocket 2, the fine solid solidified in the mesh by the seawater 17 jetted from the backwash water jet nozzle port 11 provided on the upper portion of the sieve net 1. The material is separated downward by the spouted seawater 17 and flows down along the lower outflow gutter 12 into the seawater recovery box 16, passes through a fixed fine mesh screen 18 stretched in the box 16, and is washed by the backwash fine solid. The material is removed, the seawater passes, and reaches the backwash water jet nozzle port 11 by the pump P and the pipe 19, and the same backwash operation as described above is repeated.

The seawater that has entered the water receiving tank 14 enters a recovery tank through a recovery pipe from a seawater recovery port 15 and is circulated and supplied to a stirring and cleaning tank (not shown) by a pump to wash the raw seaweed and dehydrate it. As a result, the laver washing wastewater is supplied to the supply port 7a, and this is repeated.

The laver washing sewage moves along with the endless screen 1 moving upward toward the terminal sprocket 3 in the water stop frame 4, and the top of the sieve (fine solids) is moved to the start end 4 of the water stop frame 4. '
4 ″, 4 ″ on both sides
As a result, the overflow to both sides of the sieve net 1 is stopped, and the water can be moved from the terminal opening 4a of the water stopping frame 4 to the terminal sprocket 3 side, so that the flow down and overflow to the starting end and both sides are stopped.

Also, as shown in FIG. 2, a water stoppage belt 8 which can be extended and contracted stops the overflow of water and the movement and fall of fine solids to both sides of the machine, and the belt 8 has a start end, end sprockets 2, 3 and a guide. When bypassing the sprocket 9, it safely extends while standing up and down.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A drive start end sprocket 2 and a floating end sprocket 3 are provided on a machine frame 5, and a floating guide sprocket 9 is pivotally supported midway downward. These sprockets 2, 3, and 9 are provided at equal intervals on both ends of horizontal shafts 2 ', 3', and 9 'supported by bearings of the machine frame 5, respectively. turn.

A metal endless sieve mesh 1 consisting of a fine mesh of about 100 to 200 mesh is stretched over the parallel endless chains 6, 6 in accordance with the size or the separability of the raw nori cells.
Then, by appropriately supporting the end sprocket 3 at an upper level than the start sprocket 2, the endless screen 1 and the upper transition portion 1 'of the chain 6, 6 are inclined upward from the start end to the end (FIG. 1).

Above the upper transition portion 1 ', there is provided a seaweed washing sewage supply box 7 having an open lower surface, and a lower end start end 7' of the supply box 7 is made of a rubber plate of a U-shaped water stop frame 4 or the like. A flexible starting plate 4 'is provided, and flexible side plates 4 ", 4" of the water stop frame 4 are provided on both lower end portions 7 ", 7". Further, both side portions 1a, 1a of the sieve mesh 1 are provided with support pieces 6 'provided on the endless chains 6, 6, and rubber plates 20, 2 for sandwiching the both side portions 1a, 1a.
0 is fastened to the outer rubber plate 20 and the outer sides of both side plates 4 ", 4" of the water stop frame 4 with the elastic water stop belt 8 made of rubber.

A water receiving tank 14 is provided immediately below the upper transition section 1 ', and a seawater recovery port 15 is provided at the bottom. The recovery port 15 is provided with a seawater recovery pipe.

The lower transition portion 1 "of the parallel endless chain 6, 6 is directed downward to the guide sprocket 9 which meshes with the sieve mesh 1 and the chain 6, 6 downward, and from the guide sprocket 9 to the terminal sprocket 3 A brush 10 for scraping fine solids is provided on the outer surface of the inclined portion reaching the upper portion, and a backwash water jet nozzle port 11 is provided downward above the end side (start sprocket 2 side) of the lower transition portion 1 ", A fine solid outflow trough 12 is provided below the nozzle port 11 via the lower transition portion 1 ".

A fine solid receiving trough 13 is provided directly below the scraping brush 10 on the guide sprocket 9 side so as to be inclined downward, and a fine solid receiving container 16 is provided at the lower end thereof. A backwashing water recovery tank 22 is provided at the lower end of the outflow gutter 12 below, and a fixed sieve net 18 is stretched in the middle of the recovery tank 22, and a pipe 19 is connected to a lower portion thereof, and the pipe 19 is interposed in the pipe 19. The backwash water is circulated to the backwash water jet 11 by the pump P.

In FIG. 1, reference numeral 23 denotes a water stop roller loosely supported outside the start end side of the water stop frame 4, reference numeral 24 denotes a sprocket provided on the drive shaft 2 'of the start end sprocket 2, and reference numeral 25 denotes a machine frame 5. Provided drive motor, 26 is an output shaft of the motor 25,
Reference numeral 27 denotes an output sprocket provided on the output shaft 26, reference numeral 28 denotes a driving chain which is wound around the output sprocket 27 and the sprocket 24, and reference numeral 29 in FIG.

[0020]

The present invention is constructed as described above, so that fine solids (dirt, laver pieces, small animals, small animals,
Insects, etc.), seawater for washing can be recovered from wastewater and recycled for reuse, and agricultural water can be minimized to prevent pollution, and a large amount of laver is washed with a small amount of seawater. There is an effect to get.

[Brief description of the drawings]

FIG. 1 is a side view showing a laver washing and sewage treatment apparatus of the present invention.

FIG. 2 is a vertical sectional front view taken along line AA of FIG. 1;

FIG. 3 is a cross-sectional plan view taken along the line BB in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Endless screen 2, 3 Start and end sprockets 1 'Upper transition 1 "Lower transition 4 Water stop frame 5 Machine frame 6 Parallel endless chain 7 Laver washing sewage supply box 7' Lower end start end 7" Lower end both sides 8 Water stop belt 9 Guide sprocket 10 Brush for scraping 11 Backwash water jet nozzle opening 12 Fine solids outflow gutter 13 Fine solids receiving gutter 14 Water receiving tank 15 Collection port

Claims (4)

[Claims] 1. An endless sieve consisting of fine sieves is wound between a start end and an end sprocket, and the upper transition portion of the sieve mesh is inclined upward from the start end to the end end, and in this state, the upper transition portion is moved upward. Nori washing sewage is supplied to the inside of a water stop frame erected at the upper part of the transition part, fine solids in the sewage are set on the upper transition part sieve, and the water is collected under the sieve. Nori washing sewage treatment method. 2. A parallel endless chain is wound around a start end and an end sprocket provided on a machine frame, and an endless screen made of fine sieves is stretched between the chains, and an upper transition portion of the screen and the chain is formed. A seaweed washing sewage supply box with an open lower surface is provided at the top, and a water stop frame is vertically provided at the lower end start end and both lower ends of the supply box, and at the connection between the both ends of the endless sieve mesh and the endless chain. Erect telescopic water-stop belt along the chain,
A seaweed washing and sewage treatment apparatus wherein an upper transition portion of an endless sieve mesh and a parallel endless chain is inclined upward toward a terminal sprocket. 3. A guide sprocket which meshes with the lower end of the parallel endless chain in the middle of the lower end of the parallel endless chain, and the starting end and the end of the lower end of the lower end of the parallel end are inclined downward toward the guide sprocket. A brush for scraping fine solids is provided at the start end of the lower transition section, and a backwash water jet nozzle port is provided downward above the end side of the lower transition section, and a fine solids outflow gutter is provided below. 3. The laver washing and sewage treatment apparatus according to claim 2, wherein a fine solid receiving trough is provided below the brush. 4. The laver washing and sewage treatment apparatus according to claim 2, wherein a water receiving tank provided with a collecting port is provided below the upper transition portion.