JPS6137032B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary press, and is a continuous sludge dehydrator using a two-bar peritrochoid curved surface.

There are various types of sludge dewatering machines, such as a caterpillar press, a screw press, a box press, and a roller press. , If an obstruction such as a piece of wood gets into the mix, it may cause damage or blockage due to structural problems, so pre-treatment to remove the obstruction is required. ・Since the box press operates intermittently, it is difficult to continuously convey the residue. When installed in a line, there are problems such as the flow stopping at the dehydrator, and when sludge is input into a conventional roller press, the sludge falls along the curved chute 1 and flows around the circumference. By the rotation of the upper roller 3, which has a claw 2 on the top, it is fed between the upper roller 3 and the lower roller 4 and dehydrated, but depending on the residue, it does not get caught in the claw 2 and is smoothly removed. The feed cannot be carried out, and the residue stagnates and overflows between the upper roller 3 and the curved chute 1, and the dewatering function is lost. Then, there is a problem of stopping the unloading function.
In addition, when there are obstacles such as large pieces of stone or wood in the sediment, the upper roller 3 or the lower roller 4 escapes using a hydraulic cylinder to remove the obstruction. The drawback was that the residue was discharged without being dehydrated.

The present invention enables smooth feeding of residue,
To provide a residue dehydrator which does not discharge undehydrated residue together with the removal of obstacles.

The gist of this invention is to construct a dehydrator by elastically opposing a plurality of chute pieces having a curved surface substantially close to the peritrochoid curved surface and a rotor having a curved surface substantially close to the inner envelope of the chute pieces. As the rotor rotates, the slag is drawn in and discharged, and the sludge is dehydrated by the perspective action between the rotor surface and the chute surface, and the multiple pieces of the chute are made to respond to the dewatering volume of the sludge.

Next, the configuration of the present invention will be explained based on the drawings.

FIG. 2 is a front view of the present invention. FIG. 3 shows a cross section taken along line AA in FIG.

In the figure, a mounting base 5 with an internal space is installed on the floor, and a side housing 7 having a fixed gear 6 mounted at the center is mounted on the mounting base 5 so as to face each other. A freely rotatable rotor shaft 8 passes through the center of the fixed gear 6, and this rotor shaft 8 has a
A pair of eccentric cams 9 in the same phase are provided along the inside of the side housing 7. A rotor 10 having a curved surface defined by a peritrochoid inner envelope between three vertices is fitted into the eccentric cam 9, and a rotor gear 11 is fixed to the center of both sides of the rotor 10. The rotor gear 11 and the fixed gear 6 are meshed with each other with a tooth ratio of 3:2, and a plurality of chute pieces 12 facing below the rotor 10 and having a peritrochoid curved surface are divided so that each piece can move independently. The chute piece 1
2 is supported between side housings 7 via pins 13. A rod end 16 of a cylinder device 15 is bendably connected to the free end of the shoot piece 12 via a pin hinge 14. The base of the cylinder device 15 is bendably connected to the mounting base 5 via a pin hinge 17. A scum guiding plate 18 is provided on the pin 13 and is inclined outwardly. Through bolts 20 are fastened to the side housings 7 at both ends through distance pieces 19. One end of the rotor shaft 8 protrudes outside the side housing 5, and the transmission wheel 21 is fixed thereto.

The above-described cylinder device 15, pin 13, and pin hinges 14 and 17 constitute a swinging device, and the fixed gear 6, rotor shaft 8, eccentric cam 9, and rotor gear 11
and the transmission wheel 21 constitute an interlocking device.

The operation of the above configuration will be explained. When the rotor shaft 8 is rotated by the transmission wheel 21, the eccentric cam 9 rotating together with the rotor shaft 8 rotates the rotor 10 with each rotation. The rotor 10 rotates 1/3 every time it makes one revolution.
It rotates only when it rotates. During this time, add the residue and drain. The entire process from compression to dehydration takes place during one revolution. The plurality of divided chute pieces 12 can freely operate in accordance with the dewatering volume of the residue.

As explained above, this invention has a chute having a peritrochoid curved surface and a rotor having a curved surface drawn by the inner envelope of the chute facing each other, thereby drawing in and discharging scum each time the rotor revolves. At the same time, compression dehydration is performed, making it possible to smoothly and continuously dewater the residue.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the operation of a conventional roller press, and FIG. 2 is a front view of a continuous sludge dehydrator according to the present invention.
FIG. 3 is a sectional view taken along line AA in FIG. Also, explanations of the symbols representing the main parts of the figures will be described. 1...Curved chute, 2...Claw, 3...Upper roller, 4...Lower roller, 5...Mounting base, 6...Fixed gear, 7...Side housing, 8...Rotor shaft, 9...
Eccentric cam, 10... Rotor, 11... Rotor gear, 1
2... Chute piece, 13... Pin, 14... Pin hinge, 15... Cylinder device, 16... Rod end, 1
7...Pin hinge, 18...Residue guide plate, 19...Distance piece, 20...Through bolt, 21...Transmission wheel.

Claims (1)

[Scope of Claims] 1. A rotary continuous sludge dehydrator in which a rotor is rotatably provided in the middle of a chute with one side serving as a sludge input port and the other side a sludge discharge port, forming a substantially peritrochoid curved surface. A chute is provided on the mounting base via a swinging device, and a rotor shaft having an eccentric cam is provided above the chute and is pivotally supported by a side housing, and the eccentric cam has a substantially inner envelope of a peritrochoid. 1. A continuous sludge dehydrator, characterized in that a rotor having a curved surface is rotatably fitted onto the outside, and an interlocking device is provided so that the rotor rotates around an eccentric cam and revolves around a rotor shaft. 2. The sludge dewatering machine according to item 1, characterized in that a rotor gear is provided on the side surface of the rotor concentrically with the rotor, and a fixed gear that meshes with the rotor gear is fixed to the side housing concentrically with the rotor shaft.