JPS5925482Y2 - Crushing washing dehydrator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a crushing, washing and dehydrating machine for treating sufnoon slag and the like generated in sewage treatment plants, pumping stations, etc.

The slag adhering to the screens at sewage treatment plants, pumping stations, etc., is raked up by a rake to a dust remover and transferred to a storage hopper by a conveyor.

Thereafter, it is desirable to crush, wash, and dewater the screen slag in order to facilitate transportation, landfill, or incineration for final disposal.

However, if these crushing, washing, and dewatering processes are performed in separate devices, the installation area becomes large and it becomes necessary to transport the screen slag between each device.

The object of the present invention is to provide a compact device that has three functions: crushing, cleaning, and dewatering.

For this reason, the present invention provides a crushing and cleaning chamber having an input port for materials to be crushed in the earthen wall, a cleaning water outlet in the side wall, and a screen having a cylindrical bottom wall that also serves as a crushing blade; The crushing and cleaning chamber is equipped with a screw press chamber having a receiving port in a side wall, and the crushing and cleaning chamber includes a crushing blade that can move along the screen and crush the object to be crushed between it and the screen. , a rotor is arranged in which a plurality of scraping plates capable of scraping up the material to be crushed toward the receiving port are attached at appropriate intervals in the circumferential direction.

One embodiment will be described below based on the drawings.

1 is a casing consisting of an upper casing 2a and a lower casing 2b, in which a crushing and cleaning chamber 3 and a screw press chamber 4 are formed.

A rotor 6 that is attached to a rotating shaft 5 and rotates in the direction of arrow a around a horizontal axis is disposed in the crushing and cleaning chamber 3.
A plurality of crushing blades 7 and scraping plates 8 are respectively attached at appropriate intervals in the circumferential direction.

The rotating shaft 5 is connected to a rotational drive device.

The bottom wall of the crushing and cleaning chamber 3 is composed of a cylindrical screen 9 that also serves as a crushing blade, and the crushing blade 7 of the rotor 6 and the scraping plate 8 move along the screen 9.

An input port 10 for the materials to be crushed is provided on the side of the earthen wall of the crushing and cleaning chamber 3, and a cleaning water fountain 11 is opened in the side wall.

A slag receiving chamber 12 is formed on the lower surface of the screen 9, and a discharge port 13 is formed at the lower end of the funnel-shaped bottom wall of the sludge receiving chamber 12.

14 is a water fountain for preventing the screen 9 from clogging.

The screw press chamber 4 has a conical peripheral wall with a small diameter at the lower end, and the receiving port 15 at the upper end opens into the side wall of the crushing and cleaning chamber 3 on the scraping side by the scraping plate 8 .

Reference numeral 16 denotes a plate for slag receptacle provided above the receiving port 15.

A screw 17 is provided in the screw breath chamber 4, and the diameter of the screw 17 becomes smaller toward the distal end according to its inner diameter.
The screw shaft 18 of 7 is connected to the bevel gear mechanism 1 outside the casing 1.
It is connected to a driving motor 20 via 9.

A screen sludge discharge port 22 is provided on the lower end surface of the screw press chamber 4, and a dewatering port 23 is provided on the peripheral wall of the lower half.

The dewatering port 23 may be a small hole group consisting of slits.

A funnel-shaped water collecting pipe 24 is attached to the dewatering port 23.

Next, the operation of the above configuration will be explained.

When the screen slag is introduced into the crushing and cleaning chamber 3 from the input port 10, the screen slag is crushed between the crushing blade 7 of the rotating rotor 6 and the screen 9.

The crushed screen slag is washed by water jetted from the water fountain 11, the washing water passes between the meshes of the screen 9, and the slag receiver is discharged from the discharge port 13 of the chamber 12.

The coarse screen slag remaining on the screen 9 and washed by the jet water is scraped up by the scraping plate 8 and enters the screw press chamber 4.

Then, as the screw 17 rotates, the water is pumped toward the discharge port 22, and at the same time, because the screw 17 is formed to have a gradually smaller diameter, it is compressed and dehydrated.

Separated water generated by dehydration is removed through dehydration port 2, which consists of slits, etc.
It is discharged from 3.

The dehydrated screen slag is discharged from the discharge port 22.

In the screw press chamber 4, the screen slag is forcibly discharged by the screw 17, so that there is no problem of screen slag clogging the receiving port 15, etc., and the screen slag can be smoothly discharged.

As explained above, according to the present invention, not only can the crushing, cleaning, and dewatering of materials to be crushed such as screen sludge be performed in one machine, and the structure can be made compact, but also a screen that also serves as a crushing blade, By working synergistically with a rotor to which a plurality of crushing blades and scraping plates are attached, it is possible to efficiently crush, drain, and scrape up objects to be crushed.

[Brief explanation of the drawing]

The drawing is a sectional view showing an embodiment of the present invention. 1...Casing, 3...Crushing and washing room, 4...Screw press room, 6...
Rotor, 7... Crushing blade, 8... Scraping plate, 9... Screen, 10... Inlet, 11... Fountain , 12... Slag receiving chamber, 15... Inlet, 17... Screw, 22... Outlet, 23... Dewatering mouth.

Claims (1)

[Scope of utility model registration request] A crushing and cleaning chamber that has an input port for materials to be crushed in the earthen wall, a cleaning water outlet on the side wall, and a screen with a cylindrical bottom wall that also serves as a crushing blade, and a side wall of this crushing and cleaning chamber. and a screw press chamber having a reception port, and a crushing blade that moves along the screen and is capable of crushing the object to be crushed between it and the screen, and a crushing blade that can move the object to be crushed between it and the screen, and a A crushing washing dehydrator characterized in that a rotor is disposed in which a plurality of scraping plates capable of scraping up toward the receiving port are attached at appropriate intervals in the circumferential direction.