JPS582438Y2 - sand washing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sand washing device that uses a rotating drum to separate and take out the washed sand and dirt in the dirty sand when washing the dirty sand.

In conventional rotary drum-type sand washing equipment, the dirt fed into the equipment is cleaned, but depending on the nature of the dirt during the washing after washing, large pieces of dirt may be discharged along with the washed sand. .

Therefore, if the washed sand contains organic matter, if the washed sand is directly dumped, the organic matter will decompose later and cause a bad odor, resulting in pollution, and this must be further separated from the inorganic matter and organic matter (garbage). Ta.

In view of this, the present invention is designed to clean the dirty sand, separate the washed sand and garbage, and discharge them separately.The present invention will be described below based on an embodiment.

In the figure, 1 is a sand washing drum, the lower part of which is a support roller 2,
2, it is rotatable and tilted so that the dirty sand input side is high and the washed sand discharge side is low. Scraping blades may be provided to improve the cleaning effect.

In addition, an input chute 3 is provided on the input side of the sand washing drum 1 to ensure that dirt, etc. is guided into the sand washing drum, and to supply washing water into the drum together with the dirt or separately. Then, the dirty sand is washed by rotating the drum, and the washed waste water is allowed to overflow from the dirt input side of the drum, and the washed dirt is raked up by the raking blade 4 provided on the discharge side, and then discharged from the drum. The cone 5 is made to fall onto a cone 5 integrally provided on the side of the drum to be discharged from the drum. This cone 5 has a conical shape as shown in the figure, and its tip is preferably attached to the end face of the sand washing drum discharge side and on the same axis. It is made so that it can be seen a little into the drum screen 6 which is provided integrally above the center.

This drum screen 6 has a cylindrical shape and is integrated with the axis of the sand washing drum. A sand washing hopper 7 is provided at the bottom of this drum screen 6, and a garbage hopper 8 is provided below the tip of the drum screen. Hopper 7 and sand settling tank 9
Provided at the top of the

The garbage hopper 8 has a conveyor 1 for discharging garbage at its bottom.
Set 0.

Washing water is supplied or a certain amount is stored in this sand settling tank 9, and washed sand is washed away from the drum screen with washing water sprayed from the nozzle 11 from above the drum screen and sent into the sand settling tank through a hopper. Let it fall.

This sand settling tank is provided with a conveyor 12 that scrapes up the washed sand while draining it, and discharges the washed sand out of the tank.

According to the present invention, a drum screen is integrally provided on the end face of the rotary sand washing drum so that it is coaxial with the drum screen, and the screen is supported with the discharge side lowered. There is an advantage that the sand and the dirt contained in the dirty sand are automatically separated, and that the washed sand is washed in a sand washing tank and discharged separately.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of the sand washing device of the present invention. 1... Sand washing drum, 2... Support roller, 3... Input chute, 4... Scraping blade, 5... Cone , 6...Drum screen, 7...Sand washing hopper, 8...
・Garbage hopper, 9...Sand settling tank, 10...
... Conveyor for garbage discharge, 11 ... Nozzle, 12 ... Conveyor for scraping up.

Claims (1)

[Scope of utility model registration request] A cylindrical drum screen is provided on the sand discharge side end face of a rotary drum which is rotatably supported with the sand input side inclined to be higher, so as to be integrated with the drum;
A cleaning nozzle is placed above this drum screen, and the drum screen separates the washed sand from the bulky waste in the waste sand and automatically discharges it by rotation of the drum. A sand washing device in which the sand falls into a washing sand tank provided below a drum screen, and this sand washing tank is provided with a scraping conveyor for scraping up the washed sand after the sand has been further washed in the tank.