JPS5914069Y2 - roller press - Google Patents

Description

[Detailed description of the invention] This invention relates to a roller press that can easily dewater screen sludge and bulky garbage with a high moisture content collected from sewage treatment plants using a simple device. be.

Screen sludge collected at sewage treatment plants, etc. has been washed with a large amount of water that has passed through the screen, but it has a very high moisture content, and in this state it cannot be processed in the next process, such as incineration, aerobic fermentation, etc. Since it cannot be dumped, etc., it must be dehydrated to a moisture content below a certain value.

The present invention aims to reliably dewater the screen residue and the like using a simple device.

The present invention will be explained below based on the illustrated embodiments.

In the figure, 1 is an upper roller, and 2 is a lower roller that is pressed against a part of the outer peripheral surface of the upper roller 1 with the pressure necessary for dehydration.The lower roller 2 has a smaller diameter than the upper roller. , and the upper roller 1 has a large diameter to facilitate dehydration of the screen residue and to ensure supply between the upper and lower rollers, but the diameters of both the upper and lower rollers are not necessarily different diameters and may be the same diameter. .

The outer peripheral surface of the lower roller may be lined with rubber.

The upper roller 1 is rotatably supported by the main body frame F of the roller press via a shaft 3, and is rotated via a power transmission mechanism 4 such as a belt, chain, gear, etc. via an electric motor M or a speed reducer. .

A curved compression guide plate 5 is disposed along the outer peripheral surface of the upper roller 1, and this compression guide 5 extends around the circumference from the lower part of the upper roller 1 where it contacts the lower roller to the front screen residue input section. The guide plate 5 is curved along the surface, and a chute 6 is pivotally attached to the upper end of the guide plate 5 via a shaft 5a.

A bracket 7 is protruded from the back of the compression guide plate 5, and the tip of the bracket 7 is supported on a shaft 8 to which a part of the main body frame or a lower roller is pivotally attached. The bracket is pressed against or separated from the outer circumferential surface of the upper roller using the bracket as a fulcrum, and a spring support 10 fitted to a spring 9 for squeezing screen residue supported by the main body frame F is attached to a part of the bracket. are pivotally connected via pins P, and the compression guide plate is always pressed against the circumferential surface of the upper roller by this spring pressure.

Further, a force 110-ra 11 is protruded from the tip of this spring support 10, and this cam roller 11 is brought into contact with a cam 12 provided at the end of the shaft 3 to which the upper roller 1 is fixed, so that the upper roller rotates. The cam 12 is also rotated, thereby compressing and releasing the compression of the spring 9, thereby alternately bringing the compression guide plate into contact with and away from the upper roller surface.

The lower roller 2 is supported via a shaft 8 at the tip of a lower roller frame 13, and a part of this lower roller frame 13 is supported by a main body frame F via a support shaft 14 so as to swing like a seesaw. Furthermore, the other end of this frame is brought into pressure contact with a lower roller pressure contact spring 15 supported by the main body frame, and the tip of the lower roller frame, that is, the lower roller, is pressed against the peripheral surface of the roller by the spring pressure.

In this case, if it is desired to press the lower roller against the upper roller with a pressure greater than the pressure of the spring 15, a weight may be placed on the upper part of the lower roller frame on the spring pressure side.

Further, if a lifting device 16 such as a jack is installed below the end of the lower roller frame below the spring 15, and screen residue or the like gets caught between the upper and lower rollers, the spring 16 can be removed by operating the lifting device 16. 15 to release the pressing force of the lower roller against the upper roller and separate the two rollers for cleaning or the like.

Reference numeral 17 denotes side guide plates facing each other at a required interval.

According to the present invention, when screen residue, etc. is fed onto the chute while rotating the upper roller, the squeezing guide plate alternately approaches and separates from the outer peripheral surface of the upper roller due to the action of the cam and spring. The screen residue is reduced in bulk while undergoing primary dehydration, and is transported along between guide plates by the rotation of the upper roller and supplied between the upper and lower rollers, thereby passing between the two rollers pressed together by spring pressure. Since the desired secondary dehydration is performed, the dehydration can be performed with a simple device, and it has the advantage of being easy to maintain.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view, and FIG. 2 is a front view. 1... Upper roller, 2... Lower roller, 3
, 8... shaft, 4... power transmission mechanism, 5
...pressing guide plate, 6... chute,
7...Bracket, 9...Spring, 10
... Spring supporter, 11 ... Cam roller, 12 ... Cam, 13 ... Lower roller frame, 14 ... Support shaft, 15 ... Spring, 16 ... Lifting machine, 17 ... Side guide plate, P ... Pin, M ... Motor.

Claims (1)

[Scope of utility model registration request] In a roller press that dewaters screen residue by supplying screen sludge between upper and lower rollers that are in contact with each other at a required pressure, the upper roller is driven by a motor and is moved freely toward and away from the outer peripheral surface of the upper roller to provide a squeezing guide. A plate is provided, and the compression guide plate is brought into contact with the outer peripheral surface of the upper roller by the pressure of a spring provided on the back of the guide plate, a cam provided on the upper roller shaft, and a cam roller provided at the tip of the spring supporter that contacts the cam. A roller press in which a lower roller frame supporting a lower roller is swung in a direction away from each other, and the lower roller is brought into pressure contact with an upper roller by a spring provided protruding from the main body frame.