JPS6033900A - Continuous compressing and dehydrating device - Google Patents

Abstract

PURPOSE:To dehydrate continuously material to be treated without stopping traveling of a conveying cloth belt by transferring continuously said material by means of said belt and compressing the material by a compressing device which moves together with the cloth belt. CONSTITUTION:A titled device is constituted of an endless cloth belt 18 which transfers continuously material to be treated and a compressing and moisture absorbing device which compresses the material from both sides of the belt 18 by sandwiching the material transferred by the belt 18 with the belt 18 and consists of a frame 3, upper and lower frames 4, 2, a fluid cylinder 23, etc. While the compressing and moisture absorbing device are in the state of compressing the material, said device is moved together with the belt 18 in the traveling direction of the belt 18 by a chain 14. While said devices is in the stage of releasing the compression, the device is moved in the direction opposite from the traveling direction of the belt 18 by the chain 14.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous compression dewatering device, and more specifically, the material to be treated is not continuously transported by a conveying cloth belt, but is compressed by a pressing device that moves together with the cloth belt. This invention relates to a continuous pressing device for dewatering.

Materials to be treated that contain moisture, such as sludge and industrial or household materials, are dehydrated to form a cake before being sent to an incinerator. It is desirable to use a continuous dewatering device to dehydrate the material to be processed into a cake shape. Conventional continuous dehydration equipment is, for example,
As disclosed in Japanese Patent Publication No. 0543, Japanese Patent Publication No. 52-35146, or Japanese Patent Publication No. 57-78916, a workpiece is fed between endless belts or rollers disposed above and below, and these belts or rollers sequentially transport the workpiece. It is dehydrated while being squeezed and made into a cake shape, which is then fed to the next step, such as an incinerator. A common drawback of these conventional devices is that there is a limit to the squeezing force of the belts and rollers that can be applied to the workpiece, which makes them unsuitable for dewatering workpieces that contain particularly large amounts of organic matter. Adjustment is troublesome, and the support belt, which requires water permeability, does not take into account the problem of clogging.

This invention is intended to solve the problems of the conventional apparatus described above, and basically consists of an endless cloth belt that continuously transports the workpiece, and a workpiece that is transported by the cloth belt. A compressing moisture absorbing device which compresses and absorbs moisture from both sides of the cloth belt by sandwiching it between cloth belts, and when the compressing moisture absorbing device is in the compressed state of the object to be processed, the compressing moisture absorbing device is compressed along with the cloth belt in the traveling direction of the cloth belt. The present invention relates to a continuous compressing and dewatering device equipped with a reciprocating mechanism of the compressing and moisture absorbing device that moves the compressing and moisture absorbing device in a direction opposite to the running direction of the cloth belt when the compressed moisture absorbing device is in the state of releasing the compression. The workpiece that is continuously transferred is sequentially compressed and dehydrated by a compressing moisture absorbing device that reciprocates in parallel with the cloth belt and repeats compression and release of compression. Therefore, the dewatering process can be performed continuously without stopping the running of the cloth belt. In addition, the material to be processed is compressed by a compressing moisture absorbing device that pinches the cloth belt and compresses it from both sides of the cloth belt, so it is possible to apply sufficient compressing force, and the cloth belt is able to move within the moving area of the compressing moisture absorbing device. It is easy to wash the cloth belt because it can be run in a different place from the belt.80
It is possible to prevent blindness.

Embodiments of the invention will be described with reference to the accompanying drawings.

The continuous compression dewatering apparatus 1 has a frame 3 to which a lower frame 2 is fixed, and an upper frame 4 that moves up and down with respect to the frame 3 and faces the lower frame 2 is disposed on the frame 3.

By making the lower frame 2 horizontally movable along the guide rail 5, the frame 3 and the upper and lower frames 2.4 are horizontally moved.

A wire mesh 6 and punched metal 7 are fixed to opposing surfaces of the upper and lower frames 2.4. A large number of small holes 8 are provided in the top wall of the lower frame 2, and these small holes 8 are opened to a reduced pressure chamber 9. Moreover, the upper frame 4 is also the same as the lower frame 2.
Similarly, a large number of small holes 8 are provided in the bottom wall, and these small holes 8
is opened to the decompression chamber 10. Decompression chamber 9.1 of upper and lower frames 2.4
0 are provided with drain holes 11.12, and the decompression chamber 9.
10 is connected to a negative pressure source such as a pump. The upper frame 4 is raised and lowered by the operation of a fluid pressure cylinder 23 fixed to the frame 3, and compresses the object to be processed between the upper and lower frames 2.4.
Due to the negative pressure acting on the small holes 8 and punching grates 7,
Air and moisture are absorbed into the chamber 9.10 through the wire mesh 6. This frame, upper and lower frames and fluid cylinder 2
3 constitutes a compression moisture absorption device.

Sprockets 13 are provided at the front and rear of the frame, and a chain 14 is stretched around the sprockets 13. The chain 1
Sprocket 1 rotatably attached to frame 3
Ratchet teeth 16 meshing with the sprocket 15 and integral with the sprocket 15? #BoAl? so that the pole 17 can be engaged and detached by the operation of the three hydraulic cylinders. and fluid pressure cylinder 3-+
4: Attach to Naframe 3. Here, chain 14
When the upper side travels from left to right as seen in Figure 1, the 150 rotations of Sugerocket by the chain 14 result in Pau A/17.
Control the three hydraulic cylinders so that they are blocked by. Therefore, the chain 14 is the first link of the frame 3 itself.
Move from the left side to the right side of the figure. Also, the movement from the right side to the left side as seen in Figure 1 of the frame 3 is caused by the ratchet tooth 16.
By operating the three hydraulic cylinder wheels to lift the pole 1T, the sprocket 15 is moved to the chain 1.
Rotate on 4. Therefore, the frame 3 can be moved in the opposite direction to the running direction of the chain 140.

Chain 14 runs on both sides of frame 3.

Pass the cloth belt 18 between the upper and lower frames 2 and 4. The cloth belt 18 is stretched in a loop between a roller having the same diameter as the sprocket 13 and a guide roller 19 below the frame 3, and is caused to run at the same speed as the chain 14. A water washing device 20 is arranged between both idle rollers 9.

First hydraulic circuit 2 with a first solenoid pulp 21
2 is connected to the first cylinder 23, - a second hydraulic circuit 26 with a solenoid pulp 25 is connected to the second cylinder 2;
7 to enable horizontal reciprocating of a plunger 28 whose one end is fixed to the lower frame 2 or frame. Further, a hydraulic circuit 37 having a third solenoid pulp 3G operates a third plunger 38 to attach and detach the ball 17 to and from the ratchet teeth 16.

The material to be treated, such as sludge, is continuously fed from the hopper 30 onto the cloth belt 1B while being adjusted by the adjustment plate 29.

At startup, the frame 3 is located on the left in FIG. 1, and when the first switch 31 is turned on, the third solenoid pulp 36 is switched and the ball (right 17 and ratchet tooth 2nd with laughter
The solenoid valve 2 switches to the open state shown, and the second cylinder becomes open.

At this time, the upper frame 4 is held in the raised position. The raised position of the upper frame 4 is regulated by a fourth switch 32. chain 1
4 rotates, the ball 17 is engaged with the ratchet teeth 16, preventing the sprocket 15 from rotating and the chain 14 moving the frame 3 to the right in FIG.

Since the cloth belt runs on the chain 14 at the same speed for a day, the workpiece supplied to the cloth belt 18 also moves to the right. When the frame 3 activates the second switch 33, the first solenoid pulp 21 moves the upper frame 4 downward, squeezing and dewatering the material between the two frames 2.4. During this time, the reduced pressure chambers 9.10 of the upper and lower frames 2.4 are maintained in a reduced pressure state. Moisture mainly flows out through the small holes 8 into the lower chamber 9.

Note that while the pressure in both chambers 9.1o is being reduced, when the frame 3 moves to the right together with the cloth belt and comes into contact with the third switch 34, the third switch 34 closes the third solenoid pulp 36.
is actuated to release the ball 17 from the ratchet teeth 16 and switch the second solenoid 25 to apply a leftward force to the second grunger 28,
Also, the first solenoid pulp 2 is activated so as to raise the upper frame 4.
Switch 1. The leftward force of the second plunger 28 is
Since the ball 17 is suspended from the ratchet teeth 16, the sprocket 15 is free to rotate relative to the chain 14.

Thus, the frame 3 moves to the left and returns to the starting position, the first switch 31 switches the third solenoid pulp 36 so that the port #17 and the ratchet tooth 16 are engaged, and the second Solenoid pulp 25fI: Switch, release the leftward force of the second plunger 28, and restart the rightward movement of the frame 3 by the chain 14. At this time, the previously squeezed part to be processed is The rear end side is located between the upper and lower frames 2 and 4. Then, since the material is subjected to the pressing process again in the next pressing operation, there will be no portion of the object that is not subjected to the pressing dehydration process. By such horizontal reciprocating motion of the frame 3 and vertical reciprocating motion of the upper frame 4, the object to be processed is continuously compressed and dehydrated.

The compressed material to be processed is removed from the cloth belt 18 by a scraper/4'39 and transported to an incinerator or the like. Further, the cloth belt 1B removes the clogged portion by the washing device 20, and then travels to the lower part of the hopper 30 to receive the object to be processed.

Note that the above-mentioned example shows an example of an apparatus that performs continuous compression dehydration treatment during the process of transporting the processed material using a cloth belt running in the horizontal direction, but the present invention is not limited to this.
The reciprocating motion of the compressing moisture absorbing device can also be made in the vertical direction so that the compressing and dehydrating treatment is carried out in the process of sandwiching the treated material between two cloth belts and transferring the treated material in the τ vertical direction. The reciprocating mechanism may be any other mechanism as long as the cloth belt and the compressing moisture absorbing device can move at the same speed.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing one example of the present invention, Fig. 2 is a sectional view taken along arrows ■-■ in Fig. 1, and Fig. 3 is a sectional view taken along arrows -■ in Fig. 2. FIG. 4 is a side view showing the spro-like keratin as viewed from above, and a cross-sectional view of the frame. In the figure 2...Lower frame 3...Frame 4...Upper frame 18
...Cloth Belt Agent Patent Attorney Hideaki Kuwahara

Claims (1)

[Claims] A cloth belt that continuously transports a workpiece, a compression and moisture absorption device that squeezes the workpiece transported by the cloth belt from both sides of the cloth belt and absorbs moisture, and the compression and moisture absorption device When the material to be processed is being compressed, the compressing moisture absorbing device is moved together with the cloth belt in the running direction of the cloth belt, and when the pressing is being released, the compressing moisture absorbing device is moved in the opposite direction to the traveling direction of the cloth belt. A continuous compression dehydration device characterized by having a reciprocating device for a compression moisture absorption device.