JPS60122013A - Sucking device for dehydrator - Google Patents

Abstract

PURPOSE:To improve dehydrating effect, to eliminate problems of clogging, and to prevent filter cloth or roller from wear and damage by arranging a filter cloth to contact with seals provided to plural rollers installed in a suction box and to the edge of an opening part of the suction box. CONSTITUTION:When a material 14 to be dehydrated is transported by the first filter cloth 31 and covers an opening on the upper surface of a suction box 4, the liquid contained in the material 14 is removed by sucking. In this stage, the roller 9 contacts with the first filter cloth 31 almost with a line contact. Moreover, a seal 5 is provided to the whole periphery of the edge of the opening part of the suction box 4. Therefore, the dehydrating effect is improved. Furthermore, since the area between rollers 9 is larger than the area of pores of conventional dehydrators, therefore, there is no fear for causing clogging. Additionally, the wear and damage of the first filter cloth 31 and the roller 9 can be prevented since the roller 9 is driven in company with the running of the first filter cloth 31.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suction device that performs suction dehydration as a preliminary dehydration of a belt Soles type or continuous type dehydrator that dehydrates liquid in an object to be dehydrated.

Hereinafter, a conventional suction device for a dehydrator will be explained with reference to FIGS. 1 and 2. An example is shown in which the suction device Δ of this conventional dehydrator is incorporated into a belt press.

This belt press includes a belt press main body (not shown) and a drum 1. i17'-li21 and 2nd f-922f:
The first IP cloth 31 is hung around the first pulley 21 and the drum 1 so as to be rotatable.
The second P cloth 32'f: is attached to the drum 1 by turning it. Next, the operation will be explained. The first F cloth 31 and the second F cloth 32 are moved by the I drive device iG1. , (not shown) respectively in the direction of the arrow, and the first v5 cloth: 3
Materials to be dehydrated such as sludge loaded on 1] 4 to drum 1
In the drum 1, the material to be dehydrated 14 is sandwiched between the first F cloth 31 and the second cloth 32 and dehydrated by pressing.

Therefore, the suction device HI of the conventional dehydrator has a suction box 4 disposed on the back side of the first door cloth 31 of the belt press, and facing the back side of the first door cloth 31 of the suction box 4. A large number of small holes 13 are provided in the upper plate 12. That attraction γj?
A tank 7 is connected to the tank 4, a blower 6 is connected to the tank 7, and a water tank 8 is connected to the suction box 4 and receiver tank 7. The operation will be explained below. First, the air in the suction box 4 is always supplied as a suction source by the blower 6, and there
The material to be dehydrated 14 conveyed by the cloth; 31 is transferred to the first F cloth 31
When the suction 1 is covering the upper surface of the mesh 4 through the suction 7, the inside of the mesh 4 becomes negative pressure, and the liquid contained in the material to be dehydrated passes through the first F cloth 31 and the small hole 13. The water is sucked and dehydrated into the suction box 4. The furnace liquid suctioned and dehydrated into the suction box 4 becomes water droplets or mist, and these water droplets or mist furnace liquid are carried along with air to the receiver tank 7, where it hits the side of the bar tank 70. The p-liquid and air are separated, and the p-liquid is stored in a water tank 8. As described above, the object to be dehydrated 1 transported by the first F cloth 31
・The liquid in 1 is dehydrated by suction.

However, the suction device of the conventional dehydrator is equipped with a large number of small holes 13 in the upper plate 12 facing the first F cloth 31 of the suction box 4. The area, that is, the suction area is small, and therefore the dehydration of the object 14 to be dehydrated is poor. Moreover, the material to be dehydrated 14 has small holes l.
:3, there is a risk that the small hole 13 may be clogged. Since the first F' cloth, 3j, runs in contact with the upper plate 12 of the suction box 4, the first V5 cloth of the upper plate 12;
There are disadvantages such as the upper surface in contact with is worn out and the first F cloth; 31 is also damaged quickly.

The present invention aims to provide a suction device for a dehydrator that improves the above-mentioned drawbacks.

The present invention opens the suction box facing the P cloth, provides a 7-rule on the edge of the opening, and rotatably supports a plurality of rollers at intervals on the suction box, It is characterized in that the C' door cloth is configured to come into contact with the plurality of rollers and the /-rule.

However, in the present invention, the surface facing the cloth is opened 1), a seal is provided on the edge of 11 parts between them, and 9M F rollers are placed at intervals in the suction box. A speed adjusting means is interposed between the plurality of rollers and the traveling means for the P cloth, and the cloth is in contact with the plurality of rollers and the seals, and The roller is configured to rotate at the same speed as the traveling speed of the cloth.

Hereinafter, the present invention as set forth in claim 1 (hereinafter referred to as
It is called the invention of ) is an embodiment of the suction device of a dehydrator, and the present invention described in claims 2 and 3 (hereinafter referred to as
This is called the second invention. Embodiment 'f' of a suction device for a dehydrator (1) will be described with reference to FIGS. 3 to 6.

Figures 3 and 4 show the suction device 1 of the dehydrator of the first invention.
1 is shown, and FIG. 3 is a partially cutaway plan view,
FIG. 4 is a schematic side view.

In the figure, the same reference numerals as in FIGS. 1 and 2 indicate the same parts.

However, -C1 In this embodiment, the suction device of the dehydrator according to the invention of H41 has an opening in the upper plate facing the first F cloth 31 of the suction box 4, and a knoll 5 around the entire circumference of the opening edge. A plurality of suction tubes, for example, five suction tubes are provided in the suction box 4.
Book rollers 9 are rotatably supported at intervals. In this roller 9, the upper surface of the roller 9 and the upper surface of the seal 5 are aluminum.
j-, and the axis of the roller 9 is supported so as to be orthogonal to the running direction of the first F fabric and the second fabric. As a result, the first
The door cloth 31 comes into contact with the o-ru 9 and/or 5, and the roller 9 rotates 1F in the direction of the arrow as the 1F cloth 31 runs due to the frictional force between the 11th cloth 3J and the roller 9. I will do it. Note that the distance between the rollers 9 is
Depending on the properties and other conditions, determine the interval that provides a good suction dehydration rate.

Since the suction device' of the dehydrator of the first invention in this embodiment has the above-mentioned configuration, the material to be dehydrated 14 that has been completely fed by the first F cloth 31 is filtered through the upper opening of the suction box 4. As a result, the liquid contained in the object to be dehydrated 14 is suctioned and dehydrated. At this time, since the roller 9 and the first F cloth (1) are in almost line contact, the area between the rollers 9, that is, the suction area is extremely wide compared to the suction device of a conventional dehydrator, and therefore the material to be dehydrated 14 is Good dehydration properties.Moreover, since the /-ru 5 is provided around the entire circumference of the opening of the suction box 4, there is a no-ru 5 between the N7' fabric 3] and the opening of the suction d?lux. This prevents air from leaking into the suction rack, resulting in good dewatering performance.Also, the space between the rollers 9 is extremely wide compared to the area of the small holes 13 in the suction device of a conventional dehydrator. , there is no risk of accidental accident.Furthermore, since the a-ra 9 rotates with respect to the running of the first P cloth 31, wear and damage to the first F cloth 31 and the roller 9 can be prevented. .

5 and 6 show an embodiment of the suction device of the dehydrator of the second invention, FIG. 5 is a partially cutaway plan view, and FIG.
The figure is a schematic side view.

In the figure, the same reference numerals as in FIGS. 1 to 4 indicate the same parts.

Therefore, in the suction device of the dehydrator according to the second aspect of the present invention, a speed synchronizing means is interposed between the roller 9 and the traveling means for the first P cloth 31. That is, this speed tuning means is a traveling means for the roller 9, the first P cloth, and the 1f-th cloth 31.
- Attach the sprocket 10 to the roller 9 and the first sprocket 10, respectively. The chain 11 is hooked onto the sprocket 10 of the first spool 21 of the F cloth 31 and rotated.

The suction device of the dehydrator of the second invention in this embodiment is as follows:
Since it is constructed as described above, it can achieve the same effects as the suction device of the dehydrator of the first invention described above. Moreover, since the speed adjusting means is interposed between the roller 9 and the running means for the first P cloth 31, the o-rollers 9 rotate in the directions of the arrows at the same speed as the running speed of the first P cloth 31. As a result,
Even if the bearing of the roller 9 is clogged with the material to be dehydrated 14, the roller 9 can rotate reliably without slipping.

As is clear from the above examples, the suction device of the dehydrator of the present invention has a good water absorption rate, and there is no risk of clogging.
Furthermore, wear and damage to the furnace cloth and rollers can be prevented.

Furthermore, according to the second aspect of the invention, the roller can reliably rotate at the same speed as the running speed of the furnace cloth without slipping.

[Brief explanation of drawings]

Figures 1 and 2 show the suction device of a conventional dehydrator;
Fig. 1 is a partially cutaway plan view, Fig. 2 is a schematic side view, Figs. 3 is a partially cutaway plan view, FIG. 4 is a schematic plan view 911i, FIGS. 5 and 6 show an embodiment of the suction device of the dehydrator according to the second invention, and FIG. The figure is a partially cutaway plan view, and FIG. 6 is a schematic side view. 21... 10th-ra (furnace cloth traveling means), 31...
1st Pi, 4... Suction cock, 5... Seal, 6
...Blower, 7...Receiver tank, 8...Water tank, 9...Roller, 10...Sprocket, 11...
·chain. Patent Applicant Hitachi Construction Machinery Co., Ltd. Agent Patent Attorney Tadashi Akimoto Figure 7 Figure 2 Figure 3 Figure 4 Do1

Claims (1)

[Scope of Claims] 1. Place the object to be dehydrated and run it by a traveling means. (a) A suction 4? The dewatering machine is equipped with a suction device installed in the TSKUSU, and the suction device (h''KB) is equipped with a suction device (h''KB) for sucking and dehydrating the liquid in the dehydrated material conveyed by the furnace cloth using the suction device 011 in the suction box. Open the space facing the lux hearth cloth,
A 7-hole is provided on the edge of the opening, and the suction pad is closed. Rotate multiple rollers at intervals i'f fife
A suction device for a dehydrator 6゜2, characterized in that the suction device is mounted on a shaft, and is configured such that the furnace cloth comes into contact with the plurality of rollers thereof and the knoll. Suction 4 placed on the direct side of the furnace cloth? Tsukusu and its suction 4? Suction AJ of the dehydrator, which is equipped with a suction machine installed in the tux, and dehydrates a in the material to be dehydrated transported by the furnace cloth by suction and dehydration by the front He suction machine in the suction box: Mlff-r-1
lΔi 4+ ``i+-' +lW self 1, ap −
y/y−x in? 5 Pu Hill μ included 1 [Right 1
The suction box has an opening, a groove is provided at the edge of the opening, and a plurality of rollers are rotatably mounted at intervals in the suction box, and the plurality of rollers and the cloth are moved. A means for speed equalization is interposed between the means and the plurality of rollers and the seals, and the plurality of rollers are configured to rotate at the same speed as the traveling speed of the furnace cloth. A dehydrator suction device featuring: 3. The speed tuning means is made by attaching sprockets to the plurality of rollers and the running means for the furnace cloth, and hooking a chain to the sprocket of the plural U rollers and the sprocket of the running means for the P cloth. A suction device b0 for a dehydrator according to claim 2, characterized in that: