JPS5824158Y2 - Dust removal equipment in grain dryers - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a dust removal device in a grain dryer.

In a grain dryer, when the grain that has finished drying is discharged through the grain discharge tube of the elevator and stored in a container, etc.
Light-weight contaminants such as dust and dust mixed in the grains are scattered around, which has the disadvantage of deteriorating the working environment and reducing work efficiency.

In a conventional dust remover, a part of a grain discharge tube installed in an inclined manner is expanded outward to form a paddy retention chamber, and a grain discharge port is provided at the bottom of the retention chamber, and a grain discharge port is provided at the bottom of the retention chamber. A dust remover with a dust exhaust port installed in the earthen wall is known from the publication of Utility Model Application No. 52-753. In the meantime, light foreign matter mixed into the grains is absorbed and removed through a small diameter and single dust exhaust port installed in the earthen wall, so that the grains flowing down inside the paddy storage chamber are removed. In the flux (the contaminants in the lower layer are blocked by the grains 1 flowing in the upper layer and are not absorbed, so often a dust remover is created in the discharged product, and the dust removal effect is stably maintained. Therefore, the amount of grain to be discharged is severely restricted, which has the disadvantage of reducing work efficiency.

The present invention is aimed at solving the above-mentioned drawbacks, and provides a drying device in which a grain discharge pipe is provided at the discharge port of an elevator provided in a circulating grain dryer equipped with an exhaust fan, which is substantially the same as the discharge pipe. A dust-removing inner cylinder is provided with a central part of the cylinder having a porous wall cylinder part, a dust collection chamber is provided around the porous wall cylinder part, and the outer periphery of the dust collecting chamber is covered with a sealed outer cylinder. By forming a dust remover and connecting the outer cylinder of the dust remover and the exhaust fan through a suction pipe, grains flowing down inside the grain discharge pipe pass through the relatively long porous wall cylinder part. During this process, the light contaminants mixed in with the grains are absorbed and removed from many sides by the wind from a powerful exhaust fan that is sucked in from the dust collection chamber provided on the entire circumference of the porous wall. This completely prevents the use of the dust remover for the discharged grains mentioned above, improves work efficiency by loosening the extreme restrictions on the amount of discharged grains, and simplifies the device structure by connecting the dust remover to the drying exhaust fan. The benefits of reducing production costs by reducing the production cost, maintaining a good working environment by preventing light foreign matter from scattering around, and making the work of supplying carefully selected high-quality grains to containers etc. smoother and more efficient. The purpose of this project is to develop and provide a dust removal device.

The present invention will be explained with reference to embodiment figures.

In FIG. 1, reference numeral 1 denotes the main body of the dryer. The main body 1 is filled with grains from above and discharged from below. During this time, hot air blows the grains passing through a drying chamber (not shown) provided inside the machine. Designed to dry the dryer, 2 is an elevator installed on the side of the main body 1 of the dryer, and performs three functions: loading grain in the main body 1, circulating drying the grain, and discharging the grain outside the machine. be.

3 is a conveyor device that conveys the grain discharged from the elevator 2 to the upper center of the dryer main body 1 and flows down into the machine; 4 is a switching valve installed at the discharge port of the elevator; A grain discharge tube 5 for discharging grains is suspended, a dust remover 7 to be described later is connected to the outlet end 6 of the discharge tube 5, and a blower 8 is attached to one side wall of the dryer main body 1.

Reference numeral 9 denotes an air intake port that communicates with a dust remover 7 provided on the haiku side of the exhaust fan.

The dust remover 7 is provided with an inner cylinder 10 for dust removal, which has approximately the same diameter as the grain discharge cylinder 5, and the center of the cylinder is formed into a perforated wall cylinder part using a breathable material such as a woven net or a perforated wall plate.
A dust collection chamber 11 is provided around the inner cylinder 10ρ, and its outer periphery is covered with a sealing outer cylinder 12 to form an integral structure, and 13 is an air exhaust port communicating with the dust remover 7 provided in the outer cylinder 12. be.

Then, one side opening end of the inner cylinder 10 of the dust remover 7 is connected to the discharge cylinder 5.
The exhaust port 13 of the outer cylinder 12 and the exhaust port of the exhaust fan 8 are connected to the suction pipe 14.
It is connected by.

15 is a container for grains.

With the above-described structure, the grains to be fried by the elevator 2 are conveyed to the center of the upper part of the dryer body 1 by the conveyor device 3, flowed down into the machine and accumulated, and the grains dried by hot air are conveyed to the lower part of the main body 1. The grains are discharged from the elevator 2 and fed again to the elevator 2, and when the grain reaches a predetermined moisture content by repeating the circulation drying process several times, the switching valve 4 provided at the discharge port of the elevator 2 is switched. grain to the grain ejector 5
The grains are discharged from the grain discharge tube 5 and stored in containers 15 and shipped, but at this time, if the storage operation is performed directly, light foreign matter such as dust transferred from the grain discharge tube 5 and the container 15 will be scattered around. This deteriorates the working environment and reduces work efficiency.

Therefore, in the present invention, the dust remover 7 is provided which is connected to the exhaust fan 8, and the dust remover 7 is connected to the grain discharge tube 5, so that the suction air from the exhaust fan 8 is used to displace the inner tube 10 of the dust remover 7. The flying light contaminants that mix in the grain passing through flow out into the dust collection chamber 11 through the holes in the porous wall cylinder part of the inner cylinder 10, and are further discharged to the outside of the machine via the suction pipe 14 and the exhaust fan 8. .

Further, this dust-containing air is introduced into a cyclone collector device (not shown) to dispose of the impurities.

As described above, the grain dryer dust removal device of the present invention has an elevator installed on one side of the dryer body equipped with an exhaust fan to form a circulation drying process for the grains, and also removes grains from the discharge port of the elevator. In a drying device equipped with a discharge tube, an inner tube for removing dust is provided, which has approximately the same diameter as the discharge tube and whose central portion is formed into a porous wall tube, and dust is collected around the porous wall tube of the inner tube. A dust chamber is provided, the outer periphery of which is covered by a sealing outer cylinder to integrally form a dust remover, and one side mouth end of the inner cylinder of the dust remover is connected to the discharge end of the discharge pipe. At the same time, the outer cylinder of the dust remover and the exhaust fan are connected by a suction pipe, and the grains (husks) flowing down inside the grain discharge cylinder pass through a relatively long porous wall cylinder. , the dust collection chamber provided on the entire circumference of the porous wall uses the wind from the powerful exhaust fan to absorb and eliminate light foreign substances mixed into the grains from multiple sides, so that the aforementioned discharged grains can be removed. The dust remover can be completely prevented, and the working efficiency can be improved by eliminating extreme restrictions on the amount of grain to be discharged. Furthermore, since the dust remover is connected to a drying exhaust fan, the structure of the device is simplified. In addition to reducing the manufacturing cost, it can be streamlined by making use of the exhaust fan's versatility, and it can also prevent lightweight foreign matter from scattering around to maintain a good working environment. This has the effect of improving work efficiency by smoothly and efficiently carrying out the supply work to the equipment.

[Brief explanation of drawings]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a perspective view of a dryer incorporating the present device, and FIGS. 2 and 2 are cross-sectional views of the dust remover. 1...Dryer body, 2...Elevator, 3
...Conveyor device, 4...Switching valve, 5
... Grain discharge tube, 6 ... Discharge port end,
7...dust remover, 8...exhaust fan, 9...
...Air intake port, 10...Inner cylinder for dust removal, 11.
... Dust collection chamber, 12 ... Sealing outer cylinder, 13
...Exhaust port, 14...Suction pipe, 15...Grain container.

Claims (1)

[Scope of utility model registration request] In a drying device, an elevator is installed upright on one side of a dryer body equipped with an exhaust fan to form a circulation drying process for grains, and a grain discharge tube is provided at a discharge port of the elevator, which is approximately parallel to the discharge tube. A dust removal inner cylinder with the same diameter and a porous wall cylinder is provided at the center of the cylinder, a dust collection chamber is provided around the porous wall cylinder of the inner cylinder, and the outer periphery is covered with a sealing outer cylinder. a dust remover is integrally formed, one side mouth end of the inner cylinder of the dust remover is connected to an outlet end of the discharge tube, and the outer cylinder of the dust remover and the exhaust fan are connected. A dust removal device for a grain dryer, characterized in that the device is connected by a suction pipe.