JP2014019572A - Rotary payout device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary payout device that can move at high speed and average payout capability.SOLUTION: The rotary payout device, movably arranged along a horizontal floor 14 on the bottom of a storage tank 10 for storing bulk items B, that cuts out the bulk items B to pay out the bulk items from an outlet 15 formed on the horizontal floor 14 to a lower conveyor 11, comprises a pair of rotary paddles 24 and 24 made of two impeller blades 26 and 26 arranged on a running wagon 19 in the running direction. The rotary payout device, when moving without paying out, moves holding the impeller blades 26 of both rotary paddles 24 at a rotational position along the outlet 15 and when paying out the bulk items B, displaces respectively phases of the impeller blades 26 of both rotary paddles 24 to be rotated.

Description

  The present invention relates to a rotary dispenser that dispenses loose articles in a storage tank for storing loose articles such as coal.

  As shown in FIG. 12, a plurality of unloading chambers 12 provided with a conveyor 11 are provided at the bottom of the silo or storage tank 10 for storing loose materials such as coal at power plants and ironworks. At the upper part, a rotary dispenser that scrapes off the loose material and delivers it to the lower conveyor 11 is provided so as to run freely.

  9 to 11 show a conventional rotary dispenser 13, and in the figure, the horizontal floor 14 on the upper part of the carry-out chamber 12 formed at the bottom of the storage tank 10 has a rose B along the horizontal floor 14. Are formed on the both sides of the horizontal floor 14 and inclined walls 16 are provided on both sides of the horizontal floor 14 to guide the rose B to the horizontal floor 14. The tunnel member 17 is provided.

  The rotary dispenser 13 is provided on a traveling carriage 19 that travels on a rail 18 provided in the tunnel member 17 and a lower part of the traveling carriage 19, and rotates on the horizontal floor 14 to cut out the rose B and discharge the outlet. 15 includes a rotating paddle 20 for dropping to 15, and a chute 21 for guiding a rose В suspended from a traveling carriage 19 and falling from a discharge outlet 15 to the conveyor 11.

  The rotary dispenser 13 is rotated while the rotating paddle 20 is moved on the horizontal floor 14 by the traveling carriage 19, cuts out the rose B on the horizontal floor 14, drops it from the discharge outlet 15, and passes through the chute 21. It pays out on the conveyor 11 and is conveyed outside the storage tank 10 by the conveyor 11.

JP 2002-145455 A JP 2002-128282 A

  The rotary dispenser 13 travels the traveling carriage 19 to the cutout position when the cutout position is changed in the same storage tank 10 or when a loose object in another adjacent storage tank 10 is paid out. However, since the rotary paddle 20 is buried in the loose article B during traveling, the rotary dispenser 13 always travels while discharging the loose article B. Therefore, mere movement is impossible, which has become a bottleneck in equipment operation.

  In order to solve the above-mentioned problem, it has been dealt with by using a rotating paddle with 4 to 8 blades as two, but in this case, with one rotation of the rotating paddle consisting of two blades. There is a problem that the pulsation of the payout ability is large and the ability cannot be averaged out. In order to keep the rated (average) capacity, it is necessary to increase the peak capacity. However, if the peak capacity is increased, there is a problem that the burden on the downstream equipment increases.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rotary dispenser that solves the above-described problems, can perform high-speed movement, and can average the dispensing ability.

  In order to achieve the above object, the invention of claim 1 is provided so as to be movable along the horizontal floor at the bottom of the storage tank for storing the roses, and is provided below the payout opening formed by cutting the roses into the horizontal floor. In a rotary dispenser that dispenses loose objects to a conveyor, a pair of rotary paddles consisting of two blades are provided in the traveling direction on a traveling carriage, and when moving without dispensing, the blades of both rotary paddles are connected to the discharge outlet. The rotary dispenser is characterized in that it moves while being held at a rotational position along the axis of the rotary paddle, and when the loose article is dispensed, the phases of the blades of both rotary paddles are shifted and rotated.

  According to a second aspect of the present invention, the rotating paddle is composed of a rotating body and arcuate blades provided to face the rotating body at 180 degrees, and when the two blades are in a rotational position along the payout opening, The rotary dispenser according to claim 1, wherein the lateral width of both blades is smaller than the width of the dispensing outlet.

  According to a third aspect of the present invention, both rotary paddles are connected to a drive motor via a speed reducer, and when the drive motor moves without paying out, the blades of the rotary paddles are connected to the payout opening. The rotary dispenser according to claim 1 or 2, wherein the rotary dispenser is held at a rotating position along which the blades of the rotary paddles are rotated while being shifted.

  According to a fourth aspect of the present invention, there is provided the rotary dispenser according to the first aspect, wherein the speed reducer is connected to both rotary paddles, the both speed reducers are connected via a clutch, and the drive motor is connected to one of the speed reducers. is there.

  According to the present invention, it is possible to move the rotary dispenser at a high speed without paying out loose articles, thereby improving the ease of operation. In addition, since the payout capacity can be averaged with a single rotary dispenser, the entire equipment becomes compact and the equipment cost is reduced.

1 shows an embodiment of a rotary dispenser of the present invention, FIG. 1 (a) is a plan view of a main part of the rotary dispenser during normal dispensing, and FIG. 1 (b) is a front view of FIG. 1 (a). 1 is a plan view of an essential part of a rotary dispenser when moving at high speed, showing an embodiment of the rotary dispenser of the present invention. FIG. 3 is a right side sectional view of FIG. 2. It is a figure which shows other embodiment of the rotary dispenser of this invention. It is a payout ability diagram in the present invention. In this invention, it is a figure which shows the rotation speed control with respect to the rotation angle of a rotation paddle when payout is equalized controllably. It is a payout ability diagram in a conventional example. In a prior art example, it is a figure which shows the rotation speed control with respect to the rotation angle of a rotation paddle when payout is equalized controllably. It is principal part sectional drawing of the conventional rotary dispenser. FIG. 10 is a front view of FIG. 9. It is a top view of FIG. It is a fractured sectional view of a storage tank provided with a rotary dispenser.

  A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

  1 to 3 show the main part of the rotary dispenser of the present invention. FIG. 1 (a) is a plan view of the main part during normal payout, and FIG. 1 (b) is the same as FIG. 1 (a). FIG. 2 is a front view of a main part when traveling at high speed without paying out, and FIG. 3 is a right side sectional view of FIG.

  The rotary dispenser 23 of the present invention has the same basic configuration as the rotary dispenser described with reference to FIGS. 9 to 11 except for the rotary paddle 24, and will be described using the same reference numerals.

  1A, 1B, 2, and 3, the traveling carriage 19 is provided with a pair of rotating paddles 24, 24 rotatably along the traveling direction. The rotating paddle 24 includes a rotating body 25 and an arcuate blade 26 provided to face the rotating body 25 by 180 degrees. Both rotary paddles 24 are rotatably provided on the traveling carriage 19 at intervals slightly larger than the outer diameter a of the rotation trajectory of the tips of the two blades 26, and the lateral width b formed by the arc of the two blades 26 is The discharge port 15 (and the chute 21) is formed smaller than the width c.

  The rotary paddle 24 is connected to a drive motor 29 via a speed reducer 28, and is rotated at several rpm (for example, 3 rpm) by the drive motor 29 and the speed reducer 28.

  The rotating paddle 24 is rotated while shifting the phase of the blades 26 of the rotating paddles 24 at the time of normal payout, and when the rotary paddle 24 moves at high speed in the storage tank 10 (see FIG. 12) without being paid out, FIG. As shown in FIG. 3, the blades 26 of the rotary paddles 24, 24 before and after the moving direction are held at a rotational position along the payout opening 15.

  The rotational positions of the rotary paddles 24, 24 are detected by an encoder or the like, and are rotated with the phase of the rotary paddles 24, 24 being out of phase at the time of normal payout. Twenty-four blades 26, 26 are held at a rotational position along the discharge outlet 15.

  Next, the operation of this embodiment will be described.

  First, when the rotary dispenser 23 speeds up the storage tank without performing the dispensing, the rotational positions of the blades 26 and 26 of both the rotating paddles 24 and 24 are set to the dispensing outlet 15 as shown in FIGS. Hold in a rotational position along As a result, the blades 26 and 26 of the two rotating paddles 24 and 24 are accommodated in the lower part of the mountain-shaped tunnel member 17, and the contact resistance with the loose object B is lost. High speed movement is possible without rotating the rotating paddle as in the prior art.

  Next, at the time of normal payout, as shown in FIG. 1A, the phases of the front and rear rotary paddles 24, 24 are changed (for example, 45 degrees), and the rotary paddles 24, 24 are rotated to cut out the rose B. I do.

  At this time, the rotating paddles 24, 24 are composed of two blades 26, 26, and pulsation is generated in one rotation, so the rotational speed control of the rotating paddles 24, 24 is performed.

  FIG. 5 shows a payout capability diagram according to the present invention, and FIG. 6 shows the rotational speed control with respect to the rotation angle of the rotating paddle when the payout is made uniform in a controllable manner.

  First, in the case of a conventional single-paddle paddle with two blades, if the rotation is constant as shown by the ■ mark in FIG. 7, the amount of cutting varies greatly with respect to the set value (0.45 t / min). To do. In this case, even if the rotation speed is controlled in accordance with the rotation angle as shown in FIG. 8, the payout amount becomes 0 at a certain time (4 seconds, 19 seconds) as shown by ▲ in FIG. Inevitable.

  In the present invention, by rotating the pair of rotating paddles while changing the phase, the fluctuation range of the cutting amount is reduced with respect to the set value (0.45 t / min) as shown by the ■ marks in FIG. be able to.

  Further, when the rotational speed of each rotary paddle is controlled as shown in FIG. 6, it is possible to set the payout amount equal to the set value (0.45 t / min) as shown by the ▲ mark in FIG. It becomes.

  FIG. 4 shows another embodiment of the present invention. FIGS. 1 to 3 show an example in which both rotary paddles 24 and 24 are driven by a speed reducer 28 and a drive motor 29, respectively. The drive motor 29 is a single unit, and the speed reducers 28 and 28 are connected by a clutch 30.

  In this embodiment, during high-speed movement, the clutch 30 is appropriately connected and disconnected, and the rotational positions of the blades 26 and 26 of the rotary paddles 24 and 24 are held at the rotational positions shown in FIG. Can move. Further, at the time of normal payout, the clutch 30 is disconnected and connected to a position in which the phases of the two rotating paddles 24, 24 are shifted as shown in FIG. 1A. , 24 are rotated in a phase-shifted state, and the payout ability can be averaged while suppressing pulsation.

  As explained in the conventional example, the averaging of the payout capacity is one of the important operational items for the user, but as described above, realizing the rated capacity while the pulsation of the payout capacity is large is that of the downstream equipment. Although it is necessary to increase the capacity or to follow the capacity fluctuation, in the present invention, the capacity can be averaged only with the rotary dispenser only by requiring a minimum specification for the downstream equipment.

DESCRIPTION OF SYMBOLS 10 Storage tank 11 Conveyor 14 Horizontal floor 15 Discharge port 19 Traveling trolley 24 Rotating paddle 26 Blade B Rose object

Claims (4)

  In a rotary dispenser that is provided so as to be movable along a horizontal floor at the bottom of a storage tank for storing loose objects, and that separates the loose objects from a discharge outlet formed on the horizontal floor and delivers the loose objects to a lower conveyor. In addition, a pair of rotating paddles composed of two blades are provided along the traveling direction, and when moving without discharging, the blades of both rotating paddles are moved while being held at the rotational position along the discharge outlet, A rotary dispenser characterized in that the phase of the blades of both rotary paddles is shifted and rotated when paying out.   The rotating paddle is composed of a rotating body and arcuate blades provided to face the rotating body at 180 degrees, and when the two blades are in a rotational position along the discharge outlet, the lateral width of both blades is equal to the width of the blade. The rotary dispenser according to claim 1, wherein the rotary dispenser is formed smaller than the width of the outlet.   Both rotary paddles are connected to a drive motor via a speed reducer, respectively, and when the drive motor moves without paying out, the blades of each rotary paddle are held at a rotational position along the payout opening, The rotary dispenser according to claim 1 or 2, wherein, when a loose article is dispensed, the blades of both rotary paddles are rotated while being shifted in phase.   2. The rotary dispenser according to claim 1, wherein a speed reducer is connected to both rotary paddles, both speed reducers are connected via a clutch, and a drive motor is connected to one of the speed reducers.