JPS6264774A - Switchgear for discharge port of hopper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

[Industrial Field of Application]: The present invention relates to a hopper outlet opening/closing device using a roller feeder, which opens and closes the outlet of a hopper for storing sludge, grain ore, dust, and the like. 1 [Conventional technology] Generally, hoppers for storing sludge, grain ore, dust, etc.
In order to open and close the discharge port, an opening/closing device such as a sliding shutter or a hinge type opening/closing damper is provided. However, in conventional hoppers, the discharge port is provided at the lower end of the sloping part, so depending on the nature of the stored material, the stored material may form into lumps on the slanted part or cause a shelf-hanging phenomenon, making it difficult to open the opening/closing device. However, there was a drawback that the accumulated material could not be discharged smoothly. In addition, when a sliding shutter is opened or closed, the shutter slides while remaining in surface contact with the stored material, so as the stored material becomes more viscous and the surface pressure increases, it becomes difficult to slide the shutter, and the sliding mechanism may become unable to open or close. There was a drawback that it could be damaged. Furthermore, the hinge-type opening/closing pumper has the disadvantage that unreasonable force is applied to the hinge portion, which tends to cause backlash, and that the amount of discharge of stored material cannot be well controlled. [Problem to be solved by the invention, α] The present invention has been proposed in view of the above-mentioned drawbacks of the conventional art, and there is no need to provide a thick sloped part in the hopper, and the entire lower end of the hopper can be used as the discharge port. We provide a hopper outlet opening/closing device that can be opened and closed smoothly even when the viscosity of the stored material is high, is extremely easy to control the amount of discharge, and can withstand long-term use. That is. [Means for solving the problem α] In order to solve the above-mentioned problems, the present invention cleverly utilizes a roller conveyor. A roller conveyor that supports rollers and has a belt stretched around the roller is arranged so that the L side of the belt closes the discharge port at the lower end of the hopper, and the conveyor case frame is placed in the direction in which the belt is stretched. Round trip! ! The present invention is characterized in that a hopper discharge opening/closing device is constructed by providing a moving means for IJ. [Function] The hopper discharge opening/closing device of the present invention is constructed as described above.
#, so the conveyor case frame should be pulled out in the direction of the tension force of the belt by the moving means.

[When this movement is made, the top surface of the belt that was blocking the discharge port at the bottom end of the hopper is removed from one end of the discharge port without sliding against the accumulated material in the hopper, and is supported by the conveyor case frame.] The hopper is rolled up under the roller, and the discharge port at the bottom of the hopper is opened one after another. Conversely, when the conveyor case frame is pushed in the belt tension direction by the moving means, the open discharge port at the lower end of the hopper is opened from the other end by the top surface of the belt that is returned from the bottom of the roller. They will gradually become blocked. [Example] Hereinafter, the present invention will be specifically explained based on an example shown in the drawings. Figure 2 is a sectional view of one end of the hopper seen from the front. In the figure, 1 is a hopper, which is held at a predetermined height by support legs 2. 3 is a belt conveyor which transfers the stored material to one side of the hopper 1 and charges it into the hopper 1. Reference numeral 4 denotes a pedestal placed at the bottom of the hopper 1 and supported by legs 5. Reference numeral 6 denotes a conveyor case frame arranged parallel to the pedestal 4J2, the bottom surface of which is placed on guide rollers 7 supported on the pedestal 4 at a predetermined interval, so that it can be moved to the pedestal 4. ing. Reference numeral 8 denotes rollers supported at a predetermined interval between conveyor case frames 6.6 arranged in parallel, and an endless belt 9 is stretched around the rollers 8 as shown in the figure, forming a roller conveyor 10. Seredeν
do. ] 1 is the mount 4 while being guided by the guide roller 7.
This is a guide plate that restricts the conveyor case frame 6 that moves upwardly from moving in the width direction. <-1 Care is taken to close the discharge port 12 at the lower end. And Funbear case frame 6
A rack 13 is provided along the longitudinal direction on the top surface and is engaged with a pinion 14, which is fixed coaxially with a sprocket 6 driven by a motor 15. Further, 17 is a stopper that holds the belt 9 stretched around the roller 8 outside the discharge port 12 and prevents the belt 9 from sliding with respect to the discharge port 12, and is fixed to the hopper 1. Incidentally, reference numeral 18 denotes a scraping plate whose both ends are supported by the conveyor case frame 6, and which comes into contact with the lower surface of the belt 9 stretched over the row 98 to scrape off accumulated materials adhering to the belt 9. Figure 3 is a partially cutaway side view showing the state when the conveyor case frame 6, which had been pushed into the lower part of the hopper 1, is fully pulled out. The dimensions and shape of the pedestal 4 are designed in consideration of the required pull-out length. FIG. 4 is an explanatory diagram of the operation of the hopper discharge opening/closing device constructed as described above. In the diagram (a) is conveyor case frame 6
is pushed into the F section of the hopper 1. In this state, the upper surface of the belt 9 stretched over the roller 8 completely blocks the discharge section 12 at the lower end of the hopper 1. will be stored in the hopper 1. next(
b) The motor 15 drives the pinion 14 that engages with the rack 13 to move the conveyor case frame 6 to the hopper 1.
It shows the state where it is pulled out a little from the bottom. When the conveyor case frame 6 is pulled out in this way, the belt 9 is held by the stopper 17, so the upper surface of the belt 9 that was blocking the discharge port 12 at the lower end of the hopper 1 is removed from the hopper 1.
The discharge port 1z does not slide against the accumulated material M inside.
The pieces are sequentially peeled off from one end and rolled onto one side of the roller 8 supported by the conveyor case frame 6.
The discharge port 12 at the lower end of the hopper 1 will be opened sequentially. Therefore, the stored material M in the hopper 1 falls downward in response to the opening of the discharge port 12. Note that when the viscosity of the accumulated material M is high, a part of the accumulated material M adheres to the upper surface of the belt 9 and is wound up on the f side of the roller 8, but the accumulated material M attached to the belt 9 is not scraped. Board 1
8, it will be scraped off cleanly. ,(c)(
The soil conveyor case frame 6 is pulled out as far as possible from the bottom of the hopper 1, and the discharge port 12 at the lower end of the hopper 1 is completely opened. will be done. Hopper 1
When the inside is empty, the motor 15 is reversed and the conveyor case frame 6 is gradually pushed into the bottom of the hopper 1, and the bottom of the hopper 1 is drained in the order of (c), (b), and (a). The outlet 12 may be gradually closed off by the upper surface of the belt 9. In this embodiment, a stopper 17 is installed to prevent the belt 9 from sliding. However, if a belt 9 with an uneven surface is used, or if the accumulated material M has a high viscosity and a large surface pressure, Since the belt 9 is prevented from sliding due to the sliding resistance with the stored material M, the stopper 17
It is not necessarily necessary to provide =7-, but if the sliding friction with the stored material M is completely prevented by the stopper 17, the life of the belt 9 can be considerably extended. Moreover, in this example,
A motor 15 and a sprocket 16 are used as moving means for reciprocating the conveyor case frame 6 in the tensioning direction of the belt 9.
, a pinion 14, a rack 13, a guide roller 7, etc., but the conveyor case frame 6 may be moved back and forth via a cylinder or the like whose stroke amount can be arbitrarily adjusted. Further, in this embodiment, the belt 9 is made of rubber, but if a wire mesh type belt 9 is used instead of the rubber belt 9, water can be drained at the same time. [Effects of the Invention] As specifically explained above, according to the present invention, there is no need to provide a large squeezing slope in the hopper, and the entire lower end of the hopper can be opened as a discharge port, so that the accumulated material in the hopper is not clogged. There is no risk of the hopper becoming damaged or causing a shelf-hanging phenomenon, and cleaning of the hopper is easy.Also, the upper surface of the belt that closes the discharge port at the bottom of the hopper does not slide while remaining in close contact with the stored material. Since the outlet is opened with the screw in place (it will be ripped off), opening and closing of the outlet is extremely smooth. Further, the amount of stored material to be discharged can be arbitrarily controlled according to the moving position of the conveyor case frame, and the discharged stored material can be easily loaded. Furthermore, the belt that closes the discharge port at the lower end of the hopper is stretched over rollers that are supported at a predetermined distance between the conveyor case frames, so even if the hopper capacity is large, the belt can still close the hopper. The outlet can be opened and closed stably.
It has many advantages such as sludge, flotation of coarse ore, washed coal powder, etc., and can be widely applied to hoppers that store various types of retained materials with high viscosity and moisture content.It is also easy to handle and extremely practical. An effective hopper outlet opening/closing device can be provided.

[Brief explanation of drawings]

Fig. 1 is a cutaway side view of a hopper equipped with a hopper outlet opening/closing device according to the present invention, Fig. 2 is a sectional view of the lower end of the hopper seen from the front, and Fig. 3 is a sectional view of the hopper. FIG. 4 is a partially cutaway side view showing a state in which the conveyor case frame is fully pulled out from the bottom of the hopper, and FIG. 1...Hopper 2...Support leg 3
...Belt conveyor 4... Frame 5.
... Legs 6 ... Conveyor case frame 7 ... Guide rollers ) 3 ... Rollers 9 ... Heald 10 ... Rollers Conveyor 11... Guide plate 12... Discharge port 13... Rack 14... Binion 15... Motor 16... Sprocket 17... Stopper 18...
・? It % i Patent applicant Chiyoda Kosho Co., Ltd.-11 = Fig. 2 Fig. 3 1゜ 15,

Claims (1)

[Claims] A roller conveyor consisting of rollers supported at a predetermined interval between parallel conveyor case frames and a belt stretched around the rollers is arranged so that the top surface of the belt closes the discharge port at the bottom end of the hopper. A hopper discharge opening/closing device, further comprising a moving means for reciprocating the conveyor case frame in the direction in which the belt is stretched.