JPS582723Y2 - Dust removal device in grain dryer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust removal device for a dryer for grain such as rice.

It is recognized that the vertical type is advantageous as a grain dryer because it is inexpensive to manufacture.

However, this vertical dryer has the disadvantage that it generates a lot of dust when the rice is loaded and discharged.

The inventor of the present invention has focused on this economical vertical type, and has provided a dust evacuation device for a grain dryer that further eliminates the generation of dust and enables sanitary and comfortable drying work. .

The drawing shows an embodiment of the dust removal device in the grain dryer of the present invention.

1 is the main body of a grain dryer designed to dry rice and other grains at the required capacity; 2 is the drying chamber R of the main body of the dryer;
The thrower 2 is used to take out grains such as rice that have been dried to below a certain moisture content within the dryer.

The upper end of the thrower 2 is guided into a dust ejector 3 installed above the dryer main body, and the dust ejector 3 is in the form of a closed hopper.
A viewing window 3A that allows the worker to visually check from the outside the condition of the grain such as rice supplied through the thrower, i.e., the degree of mixing of dust, etc., or the state of removal of dust.
However, the viewing window is fitted with a transparent glass or synthetic resin plate to prevent the grain fed inside from spilling out.

In addition, a dust exhaust port is provided at the top of the dust extractor 3 for forcibly discharging rice husks, straw waste, etc. to the outside of the dust extractor when dust is generated, and the dust exhaust port is connected to a dust exhaust fan 4. Duct hose 5
Further, a discharge port 3B is provided at the bottom for continuously discharging the grains supplied in the dust ejector.

A hopper 6 is provided below the dust ejector 3 and above the dryer main body.

The hopper 6 has a vertical or inclined grain discharge pipe 7 adjustable in the form of a pipe or gutter at its lower part, and
A shutter 8 for opening and closing is provided at the base of this grain discharge pipe 7, and furthermore, in the event that this grain discharge pipe 7 becomes clogged, it is used to discharge the grains supplied into the hopper through a dust collector after removing dust. A bath outlet 6A is provided.

The bath outlet 6A is bored on the slope or vertical surface of the hopper 6 at a position where the bathed grains fall into the dryer, and the size of this bath outlet, that is, the opening area, is equal to or equal to the amount supplied from the dust ejector. The above shall apply.

This dust extractor and hopper are connected in an open manner, but in a closed manner.

When grains such as paddy dried in the drying chamber are fed into the dust ejector through the thrower, dust that is lighter than the grains floats in the dust ejector.

This is a phenomenon that occurs naturally due to the difference in specific gravity.

Negative pressure is applied to the inside of this dust extractor via a dust removal fan and duct hose, so floating dust, rice husks, straw waste, etc. are sucked out, leaving only grains inside the dust extractor. .

The grains after removing dust and the like are either discharged through a hopper and supplied to a massaging machine, or supplied to a massaging bag and packed into bags.

Therefore, in the present invention, the grain mixed with dust discharged from the dryer via the thrower is guided to the hopper via the dust ejector, so that the rice and dust thrown up from the thrower are removed. The indoor workplace is sanitary because the dust can be completely separated and the dust can be discharged outdoors via a duct hose.The structure is simple and durable, and the hopper is equipped with an overflow port and a grain discharge pipe. This is an excellent device that has many advantages, such as being able to pack dried rice into bags and connect directly to a massager.

[Brief explanation of the drawing]

FIG. 1 is an external view, and FIG. 2 is an explanatory cross-sectional view. 1...Dryer body, 2...Thrower 1
3...Dust extractor, 3A...Peep window, 3B.
...Exhaust port, 4...Dust removal fan, 5.
...Duct hose, 6 ...Hopper, 6
A... Overflow port, 7... Grain discharge pipe, 8
...Shutter, R...Drying room.

Claims (1)

[Scope of utility model registration request] The tip of the thrower that sends out the dried grains is connected via a duct hose to the top of the dust ejector, which is equipped with a dust removal fan, and the lower discharge port of the dust ejector is connected to the top of the dryer. A dust evacuation device for a grain dryer, which is arranged opposite to a hopper with a bath outlet provided in the hopper, and has a grain discharge pipe with a shutter adjustable in the hopper.