JPS6310819Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is useful when packing dried grains into paddy bags using a grain drying device, or when transporting grains to a paddy warehouse or a paddy tank using a thrower, etc. This invention relates to a dust suction device for removing dust generated during grain removal in a grain drying device.

The grain drying equipment uses a bucket elevator-type grain lifting machine, a screw conveyor for loading grain, and a screw conveyor for taking out grain to dry the grain that has been loaded into a grain tank. Drying is carried out by supplying drying air while circulating the grain, taking it out from the outlet at the bottom of the grain tank and returning it to the grain tank from the top of the grain tank. A dust blower is installed to remove the large amount of dust generated by rubbing.

Therefore, this idea was developed to remove dust that is generated during the process of packing dried grains into paddy bags or temporarily storing them in paddy warehouses or paddy tanks, or the dust that remains after being sucked out during drying. The purpose of the present invention is to propose a new means in which the dust can be removed by suction using the dust suction blower of the grain drying device.

To explain the embodiment in more detail based on the drawings, in FIG. 1, reference numeral 1 denotes a frame body of a circulating grain drying device A, which is formed into a box shape. 2 is a conventionally known grain tank installed in the inner cavity of the machine frame body 1;
At the axial center of the inner cavity, an air guide passage 21 in the shape of a wind trunk is formed by an air-permeable partition 20 such as a perforated plate. The air guiding path 21 communicates with a conventionally known hot air generating device 3 consisting of a burner and a fan on one side thereof, and guides the hot air (drying air) generated by the hot air generating device 3 into the grain tank 2 (arrow). It acts to feed. Numerals 4 and 5 are screw conveyors for loading grains and screw conveyors for taking out grains, which are installed at the top and bottom of the grain tank 2. These screw conveyors 4 and 5 are conventionally known ones that consist of conveyor gutter 40, 50 and spiral blades 42, 52 which are mounted in the inner cavity of the conveyor gutter 40, 50 so as to rotate about rotation shafts 40, 51. At the bottom of the conveying gutter 40 of the screw conveyor 4 for loading grains, a plurality of discharge ports 43 are arranged in parallel along the conveying direction (arrow in FIG. 3). Further, above the screw conveyor 5 for taking out grains, a rotary shutter 54 is provided which controls the amount of grain delivered by opening and closing the delivery port 53 provided above the screw conveyor 5. Reference numeral 6 denotes a grain lifting machine that is installed vertically on one side of the machine frame body 1 (on the right side in FIG. 2), and a bucket (not shown) that rotates endlessly in the vertical direction is installed in the grain lifting tower 60. The grain lifting tower 60 is made of a bucket elevator type, and the bottom of the grain lifting tower 60 is connected and communicated with the terminal end in the transport direction of the screw conveyor 5 for taking out the grains. Furthermore, a starting end 4a in the conveying direction of the screw conveyor 4 for loading grain is connected and communicated with the upper part of the grain lifting tower 60, and a switching shutter (not shown) provided at the starting end 4a By switching, the starting end 4a is closed and the intake port (not shown) of the grain outlet 61 provided in the grain lifting tower 60 is opened, and the grains sent up by the bucket are opened. The structure is such that the flow is switched toward the grain outlet 61 mentioned above. Reference numeral 7 indicates a place where the movement of grains is rapid. In particular, the grains exposed to the drying wind are sent upward by the grain lifting machine 6, and the grains are transferred to the starting end of the screw conveyor 4 for grain loading. This is a suction blower designed to suction and remove dust from the part 4a, where a lot of dust is generated during transfer and conveyance.

The suction blower 7 includes a rotary impeller 73 in a casing 72 that includes a suction port 70 and a dust exhaust port 71, and the rotation of the rotary impeller 73 causes suction air taken in from the suction port 70 to be discharged from the dust exhaust port 71. This is similar to the conventionally known one, and a semi-cylindrical support member 74 attached to the outer surface of the upper part of the upper plate of the grain lifting tower 60 is used.
, the casing 72 of the suction blower 7 is supported. And the rotating shaft 7 of the rotary impeller 73
The outer end side of the shaft 73a extends outward from the support member 74, and a pulley 75 is provided at the protruding end of the shaft 73a, and a motor M mounted on the grain lifting tower 60.
A transmission belt 62 is passed around the motor pulley m of the motor pulley m to conduct transmission, and the transmission is independent of the transmission system paths such as the screw conveyors 4 and 5, and is independently controlled by turning on and off a switch (not shown). It is designed to switch between activation and deactivation. Reference numeral 8 denotes a suction pipe (suction tube) for connecting and communicating the suction chamber 44 formed in the upper part of the conveyance direction starting end 4a of the conveyance gutter 40 of the screw conveyor 4 for loading grains with the suction port 70 of the casing 72. ), and both ends thereof are formed into coupling rings 81 and 82, and are removably connected to the connection port 45 between the suction port 70 and the suction chamber 44.

In the grain drying apparatus A configured as described above, after the grains are dried to a desired moisture content, a connection pipe 6 for taking out the grains is connected to the grain taking out port 61.
3, and put the lower end of the tip on the opposite side into the mouth of the paddy bag W to bag the grains, or connect it to the hopper H of the thrower S as shown in Fig. 5. The lower end of the pipe 63 is connected and the paddy is sent through the thrower S to the paddy warehouse K or the paddy tank. There was a problem that the dust that was generated at times, or the dust that remained because it could not be suctioned out, began to scatter in all directions, and in particular, when it was being packed into paddy bags W, it came directly onto the workers. .

Therefore, this invention attempts to suction and remove the dust generated during bagging by using the dust blower 7, which is left idle when taking out the grains, and is installed separately from the dust blower 7. A holder 9 is formed, and the holder 9 is provided with three openings a, b, and c through a communication path 90 in its inner cavity, and one of the openings b is formed as a paddy outlet. and a connection for removably connecting and communicating the other opening a facing the paddy outlet with the grain outlet 61 of the grain lifting tower 60 or the outlet s' of the outlet cylinder s of the thrower S. It is formed in the mouth. and,
A flexible dust suction pipe 91 is extended and protruded from the opening c of the dust, and its extended end is detachably attached to the suction port 70 of the dust suction blower 7 or the coupling ring 82 of the suction pipe 8 extended from the suction port 70. A coupling ring 92 is formed for connection.

In the dust suction device configured in this way, in order to take out the dried grains from the grain tank 2, the intake port of the grain removal port 61 is opened by a shutter,
The grain extraction port 61 and the connection port of the holder 9 are communicated via a flexible grain extraction pipe 63. In addition, the coupling 92 of the dust suction pipe 91 extending from the holder 9 is connected and communicated with the coupling 82 of the suction pipe 8 which has been removed from the connection port 45 of the suction chamber 44, and as shown in FIG. After the outlet is inserted into the mouth of the paddy bag W and set, the dust suction blower 7, the grain lifting machine 6, and each screw conveyor 4 and 5 are operated to remove dust from the paddy bag W at the same time as bagging the grains. This method performs suction removal. In addition, when sending grains to a rice warehouse K etc. as shown in Fig. 5, the hopper H of the thrower S and the grain outlet 6
1 through a grain removal pipe 63. Next, the discharge port s' of the discharge cylinder s of the thrower S is connected to the connection port of the holder 9, and the joint 92 of the dust suction pipe 91 is connected and communicated to the joint 82 of the suction pipe 8, and the paddy warehouse K is connected. This is to remove dust while transporting the grains.

As explained above, according to the dust suction device of this invention, the dust suction pipe of the holder is connected to the dust suction blower attached to the grain drying device, and the holder is connected to the grain outlet of the grain lifting tower. By connecting the connection port, it becomes possible to use an existing dust blower as a dust suction device when removing grains. Also,
If the dust suction pipe of the holder is removed from the suction port of the dust suction blower, it can be used as a dust suction blower for a conventional grain drying device without any problems.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a grain drying device implementing this invention, Fig. 2 is a cutaway front view of the main part showing how the dust suction blower is attached to the grain lifting tower, and Fig. 3
The figure is a perspective view of the same as above, Figure 4 is a schematic explanatory diagram of the state in which the grains are packed into paddy bags, and Figure 5 is a schematic explanatory diagram of the state in which the grains are sent to the paddy store by the thrower. . Explanation of drawing symbols, A... Grain drying device, 1...
Aircraft, 2... Grain tank, 3... Hot air generator, 4/5
...Screw conveyor, 6...Grain lifting machine, 7...
Dust blower, 8... Suction pipe, 9... Holder, 60... Grain removal tower, 61... Grain removal port as above, 63... Grain removal pipe, 70... Dust blower suction port, 71 ...Dust exhaust port as above, 72...
Same as above casing, 73... Same as above rotor wheel, 8
2...Suction pipe coupling ring, 90...Holder communication path, 91...Dust suction pipe as above, 92...
...Coupling as above, ...Paddy removal outlet as above, ...Connection port as above, S...Thrower, H...
...Hotsupa as above, s...discharge tube as above, s'...discharge port as above.

Claims (1)

[Scope of utility model registration request] In a grain drying device in which a dust suction blower having a suction port and a dust exhaust port is attached to a grain lifting tower of a grain lifting machine installed in parallel on one side of the machine body, a holder formed separately from the dust suction blower. is provided with three open ports through a communication passage in its inner cavity, one of which is formed as a paddy outlet, and the other open port is formed as a connection port. removably connects and communicates with the grain extraction port of the dust blower or the discharge port of the thrower's discharge cylinder, and connects and connects the residue release port with the suction port of the dust suction blower or a suction pipe extending from the suction port. A dust suction device for taking out grains in a grain drying device, characterized by: