JPH0526931U - Dust collector for grain transportation equipment - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To reduce the loss of vacuum pressure and improve the processing capacity. [Structure] When the movable conveyor 5a is moved to reach a target storage bin position, the connecting flange 30 is brought into contact with a kicker 26 provided on the blind lid 24 on the dust collecting duct side,
Rotate the blind lid 24 to the open position and then activate the suction fan. Connect the dust collecting duct to the connecting duct 2 of the moving conveyor 5a.
7 is connected to the storage bin via the 7, and then the grain is supplied from the discharge gutter 28 of the moving conveyor 5a to the storage bin, while the dust in the discharge gutter 28 of the moving conveyor 5a is duct 27 → tip duct pipe 34 → dust collecting duct Side branch duct 22-> dust collection duct-> suction fan 7 sucks dust. When a predetermined amount of grain has been supplied, the suction fan 7 is stopped and the moving conveyor 5a is moved to the next storage bin position. At that time, the connecting flange 30 on the side of the moving conveyor 5a has the blind cover 2
The blind lid 24 rotates to the closed position around the pin 25 by its own weight, away from the kicker 26 of No. 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust collector for a grain transportation facility applied to a large-scale grain storage facility and the like.

[0002]

[Prior Art]

 A conventional dust collector of a grain transport facility will be described with reference to FIGS. 6 and 7. A plurality of storage bins 1a to 1e of FIG. 6 are arranged in series in series, 2 is a bucket elevator, 3 is a shuttle, and 4 is a relay. A conveyor, 5 is a moving conveyor, 6 is a dust collecting duct, and 7 is a suction fan.

Reference numeral 8 in FIG. 7 is an opening window provided at a position facing the storage bins 1 a to 1 e of the dust collecting duct 6. In the opening window 8, an opening / closing valve 9 and an L-shaped lever 11 having a tension spring 10 are provided. There is a rotary shaft 12 attached to these on-off valve 9 and L-shaped lever 11. Further, as shown in FIGS. 6 and 7, discharge gutters 14a and 14b are provided at both front and rear ends of the moving conveyor 5, and an elbow-shaped connecting wind tunnel 17 is provided above the discharge gutters 14a and 14b. 15 and a slide plate 16 are provided. Reference numeral 13 is a rail of the moving conveyor 5.

At the time of dust removal, the electric motor 18 is started, and its rotation is transmitted to the communication wind tunnel 17 via the screw shaft, and the communication wind tunnel 17 is pushed toward the opening window 8 of the dust collection duct 6 for communication. The roller 20 provided at the tip of the wind tunnel 17 is brought into contact with the L-shaped lever 11 of the dust collection duct 6 to rotate the L-shaped lever 11, the rotary shaft 12, and the open / close valve 9 in the opening direction, and the dust collection dust is collected. The inside of the contact 6 is connected to the storage bin 1 (one of 1a to 1e) via the inside of the communication wind tunnel 17.

Next, the grain is supplied to the bucket elevator 2 → the shout 3 → the belt conveyor 4 → the discharge trough 14a of the moving conveyor 5a → the storage bin 1 (1a-1e), while the suction fan 7 is activated to discharge the grain. The dust in the gutter 14a is sucked into the communication wind tunnel 17 → the dust collecting duct 6 → the suction fan 7 to collect the dust. When the moving conveyor 5 is connected to the next storage bin 1 (one of 1a to 1e), the electric motor 18 is started in the opposite direction and its rotation is transmitted to the communication wind tunnel 17 via the screw shaft. Then, the communication wind tunnel 17 is retracted from the opening window 8 of the dust collection duct 6, and the roller 20 provided at the tip of the communication wind tunnel 17 is separated from the L-shaped lever 11 of the dust collection duct 6. The L-shaped lever 11, the rotary shaft 12, and the opening / closing valve 9 are rotated in the closing direction by the tension spring 10, the opening window 8 is closed, and the moving conveyor 5 is moved toward the next storage bin 1.

[0006]

[Problems to be solved by the device]

 In the conventional dust collector of the grain transport facility shown in FIGS. 6 and 7, since the on-off valve 9 provided for each of the storage bins 1a to 1e faces inward, dust is likely to adhere. In addition, the spring force of the tension spring 10 that presses the open / close valve 9 against the opening window 8 is weak, resulting in a large loss of the vacuum pressure.

Further, a drive source (motor 18) for moving the communication wind tunnel 17 is required, which increases equipment costs. Further, the electric motor 18 is started, and its rotation is transmitted to the communication wind tunnel 17 via the screw shaft, and the communication wind tunnel 17 is pushed out toward the opening window 8 of the dust collecting duct 6 so that the communication wind tunnel 17 is The roller 20 provided at the tip end is brought into contact with the L-shaped lever 11 of the dust collection duct 6 to rotate the L-shaped lever 11, the rotary shaft 12, and the opening / closing valve 9 in the opening direction. Moreover, since these parts are operated in the reverse direction to rotate the L-shaped lever 11, the rotary shaft 12, and the opening / closing valve 9 in the closing direction, it takes a lot of time to open / close the opening window 8 and the processing capacity is lowered. I am doing it.

The present invention is proposed in view of the above problems, and the object thereof is to reduce the loss of the vacuum pressure. In addition, equipment costs and running costs can be reduced. Another point is to provide a dust collector for grain transport equipment that can improve processing capacity.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the dust collecting apparatus of the grain transporting equipment of the present invention is provided with a branch duct at a position corresponding to each storage bin of the dust collecting duct, and a flange is provided at the tip of each branch duct. A blind lid that opens and closes the flange side opening of the branch duct is pivotally supported on the flange, a kitker is provided on the blind lid, a communication duct is provided on the discharge gutter of the moving conveyor, and a tip is provided at the tip of the communication duct. The duct pipe is mounted so that it can expand and contract, and a connecting flange that abuts against the above-mentioned chip is provided at the front end portion of the tip duct pipe.

[0010]

[Action]

 The dust collecting device of the grain transporting equipment of the present invention is configured as described above, and when the moving conveyor is moved leftward (or rightward) to reach the target storage bin position, the moving conveyor side Connect the connection flange of the to the kitker provided in the blind lid on the dust collecting duct side, rotate the blind lid to the open position, then activate the suction fan to create a negative pressure inside the dust collecting duct. The connecting flange and tip duct pipe on the moving conveyor side are sucked by pressure, and this connecting flange is brought into close contact with the flange on the dust collecting duct side, and the dust collecting duct is connected to the storage bin via the connecting duct of the moving conveyor. Then, the grain is supplied to the grain supply system → moving conveyor discharge gutter → storage bin, while the dust in the moving conveyor discharge gutter is connected duct → tip duct pipe → dust collecting branch side branch duct → collecting Dust duct → Suction By suction to down, the dust collection. After supplying a certain amount of grain to the storage bin, stop the suction fan and move the moving conveyor to the next storage bin position. At that time, the connecting flange on the side of the moving conveyor separates from the blind cover kicker, and the blind cover rotates to the closed position around the pin by its own weight.

[0011]

【Example】

 (First Embodiment) Next, a dust collecting apparatus for grain transport equipment of the present invention will be described with reference to a first embodiment shown in FIGS. 1 to 4. Storage bins 1a to 1e, bucket elevators 2, shouts 3, belt conveyors. 4, the moving conveyor 5a, and the suction fan 7 are configured in the same manner as the conventional one.

Reference numeral 21 denotes a dust collecting duct. The dust collecting duct 21 is a round pipe in the present embodiment in order to make the flow in the pipe uniform, but it may be a square pipe. A branch duct 22 is provided at a position corresponding to the storage bins 1a to 1e (or each tank or a group of a plurality of bins) in the dust collection duct 21, and the tip of each branch duct 22 has a cone shape. A trapezoidal flange 23 is fixed, and a blind lid 24 that opens and closes the opening of the flange 23 is pivotally supported on the convex portion of the flange 23 by a pin 25 so that the blind lid 24 can be opened and closed. 26 is attached.

Reference numeral 27 is a drive wheel of the moving conveyor 5a, 13 is a rail laid on the upper part of the storage bin 1 (1a to 1e), 28 is a discharge gutter provided on both front and rear sides of the moving conveyor 5a, and 29 is a discharge gutter 28. Of the communication duct 29, a flange attached to the front end of the communication duct 29, 31 a bellows attached to the flange 35, 30 a connection flange attached to the tip of the bellows 31, 34 is a tip duct pipe attached to the connection flange 30 and slidably fitted in the tip portion of the communication duct 29. 33 is interposed between the tip duct pipe 34 and the communication duct 29. A seal member 36 is a portion where the connecting duct 29 and the tip duct pipe 34, which are closed by the bellows 31, overlap each other.

A detection device (a sensor for detecting the amount of grain input into the storage bin 1, a sensor for detecting the stop position of the moving conveyor 5a and the carriage) 32 is provided on the carriage of the moving conveyor 5a. Numeral 37 is a grain shout of the moving conveyor 5a, and numeral 39 is a soft sheet seal curtain for maintaining airtightness in the discharge gutter. Next, the operation of the dust collector of the grain conveying facility shown in FIGS. 1 to 4 will be described in detail.

A case where the moving conveyor 5a is run leftward will be described. In this case, when the moving conveyor 5a reaches the target storage bin position, the connecting flange 30 provided at the tip of the communication duct 29 of the moving conveyor 5a causes the right kicker 26 of the blind lid 24 of the dust collecting duct 21. The blind lid 24 rotates about the pin 25 to the position indicated by the alternate long and short dash line (open position) in FIG. At this time, the detecting device 32 detects the positions of the moving conveyor 5a and the carriage, and stops the moving conveyor 5a and the carriage.

Next, the suction fan 7 is started to make the inside of the dust collecting duct 21 negative pressure, and the connecting flange 30 is sucked by this negative pressure, and the connecting flange 30 is made to the flange 23 on the dust collecting duct 21 side. The dust collection duct 21 is brought into close contact with the storage bin 1 (1a to 1e) via the communication duct 29. Next, the grain is supplied to the bucket elevator 2 → the shute 3 → the belt conveyor 4 → the discharge gutter 28 of the moving conveyor 5a → the shout 37 → the storage bin 1 (one of 1a to 1e), while the dust in the discharge gutter 28 is supplied. The duct for communication 29 → the tip on the side of the duct 29, the duct pipe 34, the branch duct 22 on the side of the dust collecting duct 21, the dust collecting duct 21, and the suction fan 7 suck the dust.

When a predetermined amount of grain is supplied to the storage bin 1, the suction fan 7 is stopped and the moving conveyor 5a is moved to the next storage bin 1 position. At that time, the connecting flange 30 provided at the tip of the connecting duct 29 of the moving conveyor 5a is separated from the right kicker 26 of the blind lid 24 of the dust collecting duct 21, and the blind lid 24 is centered around the pin 25 by its own weight. To the solid line position (closed position).

When the moving conveyor 5a is moved to the right, the connecting flange 30 is brought into contact with and separated from the left kicker 26 of the blind lid 24, and the blind lid 24 is opened and closed. (Second Embodiment) FIG. 5 shows a second embodiment in which a weak pull-back spring 38 is interposed in the overlapping portion 36 of the tip portion of the connecting duct 29 and the tip duct pipe 34, and is connected by the pull-back spring 38. The flange 30 is forcibly pulled back to its original position.

[0019]

[Effect of the device]

 The dust collector of the grain transport equipment of the present invention moves the moving conveyor leftward (or rightward) as described above, and when the target storage bin position is reached, the connecting flange on the moving conveyor side is moved. The blind lid on the dust collecting duct side is brought into contact with it to rotate the blind lid to the open position, and then the suction fan is activated to create a negative pressure in the dust collecting duct, and the negative pressure moves it. Suction the connection flange on the conveyor side and the tip duct pipe, make this connection flange adhere to the flange on the dust collection duct side, connect the dust collection duct to the storage bin via the connecting duct of the moving conveyor, and then the grain. Grain supply system → Discharge gutter of moving conveyor → While supplying to storage bin, dust in discharge gutter of moving conveyor is connected duct → Tip duct pipe → Branch duct on dust collecting duct side → Dust collecting duct → Suction Aspirate into the fan, To dust. When a certain amount of grain has been supplied to the storage bin, the suction fan is stopped and the moving conveyor is moved to the next storage bin position. At that time, the connection flange on the moving conveyor side separates from the blind cover kicker, and the blind cover rotates to the closed position around the pin due to its own weight. The opening / closing mechanism can be eliminated and the loss of vacuum pressure can be reduced.

Further, the electric motor for moving the communication wind tunnel, which is required in the above conventional device, can be eliminated, and the equipment cost and running cost can be reduced. Also, the connection flange on the moving conveyor side is brought into contact with and separated from the blind lid kitker on the dust collecting duct side to open and close the blind lid, so the opening of the dust collecting duct can be opened and closed quickly, and the grain transport facility Can improve the processing capacity of

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a dust collecting apparatus of a grain transport facility of the present invention.

FIG. 2 is a plan view showing a main part of the dust collector.

FIG. 3 is a front view seen from the direction of arrow A in FIG.

FIG. 4 is a cross-sectional plan view showing a main part of the dust collector.

FIG. 5 is a cross-sectional plan view showing a second embodiment of the dust collector.

FIG. 6 is a side view showing a dust collector of a conventional grain transport facility.

FIG. 7 is a perspective view showing the dust collector.

[Explanation of symbols]

 1-4 Grain supply system 1a-1e Storage bin 5a Moving conveyor 21 Dust collection duct 22 Branch duct 23 Flange 24 Blind lid 26 Kitker 27 Contact duct 28 Discharge gutter 30 Connection flange 34 Tip duct pipe

Claims (1)

[Scope of utility model registration request] 1. A branch duct is provided at a position corresponding to each storage bin of the dust collection duct, a flange is provided at a tip end of each branch duct, and a blind lid for opening and closing a flange side opening of the branch duct is pivotally attached to the flange. Support, a blind is provided on the blind lid, a communication duct is provided on the discharge gutter of the moving conveyor, and a tip duct pipe is attached to the tip of the communication duct so that it can expand and contract. A dust collector for a grain transport facility, which is provided with a connecting flange that comes into contact with a kicker.