KR20030028166A - Apparatus for preventing the discharging portion from closing of a hopper - Google Patents

Abstract

PURPOSE: A clogging preventing apparatus for a discharge port of a hopper is provided to prevent clogging of the discharge port by injecting high pressure air back and forth inside the hopper by being installed to a section reduced portion of the discharge port. CONSTITUTION: A clogging preventing apparatus for a discharge port of a hopper(91) includes a dust preventing bag(12); a cylinder(30) and a moving body. The dust preventing bag is installed to seal a through hole(91a) formed to a lower portion of the hopper. The cylinder is installed to an outer portion of the hopper by being equipped with a rod(32), a piston(34) and an air supply hole(32a). The rod is fixed by penetrating the dust preventing bag, and the piston is moved back and forth by supplying high pressure air. The air supply hole is formed to penetrate a tip of the rod and a rear end of the piston. The moving body comprises a rear body; an inner body and a front body. The rear body is mounted to a tip of the cylinder being equipped an air injection hole connected to the air supply hole. The inner body is rotated by injecting air pressure of the air injection hole, and a penetration groove of the inner body discharges air radially. The front body receives the inner body to be rotated toward a shaft and has air discharge holes. Therein, clogging is prevented by injecting high pressure air back and forth inside the hopper through air discharge holes.

Description

Apparatus for preventing the discharging portion from closing of a hopper}

The present invention relates to a device for preventing the blockage of the outlet of the hopper, and is installed at a reduced portion of the cross-section of the outlet and prevents the blockage of the outlet of the hopper to prevent dust from being clogged by injecting high pressure air while moving forward and backward into the hopper. Relates to a device.

In general, a hopper provided to temporarily store dust and discharge to the lower outlet has a shape in which the cross section of the outlet is gradually reduced, and thus a phenomenon in which dust does not exit the outlet is often caused by a bottleneck.

Various means for solving this are known, which will be described with reference to FIG.

Figure 1 shows the bottleneck solving means according to the prior art, the lower portion of the hopper 91 provided with the dust 93 can be stored in the shape of the cross-section is gradually reduced, so that the reduced An outlet 92 is formed through the valve 94.

One of the related arts is that a magnetic hammer 95 is installed on the lower surface of the hopper 91 so that bottlenecks are suppressed by applying a large impact to the hopper 91 every predetermined time.

The other is the vibrator 96 is installed on the lower surface of the hopper 91, the bottleneck phenomenon by applying a predetermined impact to the hopper 91 in a shorter period compared to the magnetic hammer (95) Prevent it.

Another one of the prior art is that the rotating screw 97 having a long length up and down inside the hopper 91 is installed to suppress the bottleneck phenomenon by destroying the bottleneck generating part.

However, the above-described conventional technique using the magnetic hammer 95 or the vibrator 96 is the impact required to the hopper 91 when the dust 93 is filled inside the hopper 91 or The problem that the bottleneck phenomenon is not effectively prevented and removed by not vibrating, and when the dust 93 is less filled inside the hopper 91, noise is generated by excessive shock or vibration, as well as the hopper 91. It was to have a problem of lowering the deformation and life of the.

In addition, in the method of using the rotating screw 97, since the rotating screw 97 is installed vertically long in the center of the hopper 91, the phenomenon of dust stagnation on the inner surface of the hopper 91 is not solved at all. There was a problem that could not be.

In addition, the above-described conventional magnetic hammer 95, the vibrator 96 and the rotary screw 97 is fixed in the installed position, so that no response was made to the case where the bottleneck occurrence position was changed.

The present invention is to solve such a conventional problem, it is mounted on the sectional area of the hopper outlet is reduced to effectively prevent the phenomenon of dust clogging at the outlet by injecting high pressure air while moving forward and backward into the hopper. It is an object of the present invention to provide an apparatus for preventing clogging of the outlet of the hopper.

1 is a schematic configuration diagram for explaining a method for preventing the blockage of the outlet of the hopper according to the prior art;

Figure 2 is a partial cutaway view showing a state in which the hopper outlet blocking device of the hopper according to the present invention is installed as a whole;

3 is a perspective view of main parts of the present invention;

4 is a detailed cross-sectional view showing a state in which the components of FIG. 3 are combined;

5 is an explanatory view of the operation of the present invention.

※ Explanation of symbols about main part of drawing ※

10: support body 12: dust barrier

20: valve 22: cylinder

30: cylinder 32: rod

32a: air supply hole 34: piston

35 hose 4: moving body

41: rear body 41a: air injection hole

42: front body 42b: air discharge hole

43: inner body 43a: through groove

43b: blade 44: rotary support shaft

91: hopper 91a: through hole

92 exhaust port 93 dust

As a technical configuration for achieving the above object, the present invention, the dust barrier protein is mounted to seal the through hole formed on the lower side of the hopper with elasticity; A cylinder installed outside the hopper having a rod fixed through the dust barrier protein, a piston forward and backward driven by supply of high pressure air, and an air supply hole formed through the front end of the rod and the rear end of the piston; An interior having a rear body mounted at the front end of the cylinder with an air injection hole connected to the air supply hole, and a through groove for rotating the air by the air pressure injected through the air injection hole and discharging the air radially; It provides a hopper to prevent the clogging of the outlet of the hopper comprising a body and the front body having a plurality of air discharge holes disposed in the longitudinal direction and the circumferential direction through the inner body to be rotated in the axial direction and radially penetrated. By

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 is a partial cutaway view showing the state in which the apparatus according to the present invention is installed near the outlet of the hopper.

The apparatus 1 of the present invention is installed in the vicinity of the outlet 92 of the hopper 91, and this part is a site where bottlenecks frequently occur due to the gradual decrease in the cross-sectional area thereof.

The hollow-cylindrical cylindrical support body 10 is fixedly installed under one side of the hopper 91, and a through hole 91a having a substantially circular shape is formed in the hopper 91, and a through hole of the hopper 91 is formed. An open upper end of the support body 10 is fixedly installed at 91a, and the support body 10 has a closed lower end. In addition, the support body 10 is preferably mounted in a slightly inclined state to be closer toward the center line of the hopper 91 toward the upper portion.

The through hole 91a of the hopper 91 is configured to be opened and closed by a valve 20 having a plate shape, and the valve 20 is opened by a cylinder 22 installed outside the hopper 91. By opening and closing, the through hole 91a of the hopper 91 is opened and closed. The cylinder 22 is connected to the air supply pipe 24 having the solenoid valve 24a to be driven forward and backward.

The cylinder 30 is mounted inside the support body 10, and the cylinder 30 moves the rod 32 to the inside of the hopper 91 through the open upper end of the support body 10. Arranged backwards, an air supply hole 32a is formed through the central longitudinal direction of the rod 32, and the air supply hole 32a passes through the inner piston 34 of the cylinder 30 to form a cylinder. 30 is penetrated backwards.

In addition, the air supply pipes 36a and 36b are connected to the front and the rear of the cylinder 30, respectively, and the air supply paths are set by the solenoid valves 36c in the air supply pipes 36a and 36b. It is provided.

In addition, a separate air supply pipe 37 is also connected to the rear of the support body 10, and the air supply pipe 37 is provided with an on-off valve 37a.

At the end of the rod 32 of the cylinder 30, a disk-shaped connecting plate 38 is fixedly installed, as shown in more detail in FIGS. 3 and 4, and the rod 32 is formed at the center of the connecting plate 38. The through hole 38a corresponding to the air supply hole 32a is formed, and the edge of the connecting plate 38 and the inner surface edge of the front end of the support body 10 are formed by the elastic dust barrier protein 12. The connection between them blocks the space between them.

The movable body 4 is installed in the front of the connecting plate 38 via a coil spring-shaped elastic support member 39, and the movable body 4 is a rear body fixed to the elastic support member 39. 41, a front body 42 fixed to the front of the rear body 41, and the inner body 43 accommodated in the front body 42.

The rear body 41 has an air injection hole 41a connected to the through hole 38a of the connecting plate 38 via a flexible hose 35, and the air injection hole 41a is the rear body. The branched portion at the tip of the head 41 is configured to be capable of injecting air to a plurality of points at the tip of the rear body 41.

The front body 42 has an approximately hollow cylindrical shape in which the front end is closed and the rear end is opened, and a pointed needle 42a is formed at the front end of the sealed front end. In addition, the front body 42 has a plurality of radially discharged air discharge holes 42b formed therein, and these air discharge holes 42b are disposed at different positions with respect to the longitudinal direction of the front body 42. .

The inner body 43 has a substantially hollow cylindrical shape in which the front end is closed and the rear end is opened, and a rectangular through groove 43a elongated in the longitudinal direction is formed. Then, the rotation support shaft 44 is fixedly installed in the central longitudinal direction of the inner body 43, the rotation support shaft 44 is the front end of the front body 42 and the front end of the rear body 41 Axial rotation is possible respectively. In addition, a plurality of blades 43b are fixedly installed at the rear end opening of the inner body 43, and the blades 43b are formed by air injected through the air injection holes 41a of the rear body 41. The inner body 43 is configured to rotate by generating a rotation force.

In addition, the cylinders and valves are electrically connected to the controller 5 and controlled by the controller 5, and a predetermined program is built in the controller 5 in advance.

The operation of the present invention having the above configuration will be described.

The apparatus of the present invention is operated to prevent the outlet 92 of the hopper 91 from being sealed by the dust 93, and when the valve 94 installed at the outlet 92 of the hopper 91 is operated, the air supply pipe Air is supplied to the inside of the support body 10 through 37, and at the same time or sequentially, the through hole 91a of the hopper 91, which is closed by the valve 20, is driven by the cylinder 22. By opening.

At the same time, the valve 20 opens the through hole 91a of the hopper 91 or sequentially supplies air to the rear of the piston 34 through the air supply pipe 36b. At the same time as the piston 34 is advanced, air is also supplied to the movable body 4 through the air supply hole 32a passing through the piston 34 and the rod 32.

The moving body 4 enters the inside of the hopper 91 through the through hole 91a of the hopper 91 by advancing the piston 34 and at the same time the air supply hole 32a of the rod 32. And the inner body 43 is rotated by the high pressure air injected into the air injection hole (41a) of the rear movable body 41 through the elastic hose (35). Of course, the rotation of the inner body 43 is due to the rotational force generated in the blade 43b by the air injected through the air injection hole (41a).

The following operation will be described with reference to FIG.

When the inner body 43 is rotated, any one of the air discharge holes 42b of the front body 42 is positioned in the through groove 43a formed in a rectangular shape on one side of the inner body 43, and thus the blade The high pressure air supplied into the inner body 43 through the 43b exerts a blow on the dust of the hopper 91 through the through grooves 43a and the air discharge holes 42b at high pressure. .

In addition, the through groove 43a is also rotated by the rotation of the inner body 43, so that the air in the dust of the hopper 91 through the air discharge hole 42b adjacent to the air discharge hole 42b. Sprayed at high pressure, this operation is repeated.

That is, the high pressure air is injected into the hopper 91 through the air discharge holes 42b formed at various places in the circumferential and longitudinal directions of the front body 42 while the inner body 43 is rotated. By striking the dust at the same time and by breaking the balance of the forces that cause the bottleneck, the bottleneck is prevented and the bottleneck is broken when the bottleneck occurs so that the dust can be discharged smoothly through the outlet.

As described above, according to the apparatus for preventing clogging the outlet of the hopper according to the present invention, high-pressure air is injected into the dust stored in the hopper through air discharge holes formed in several places in the circumferential direction and the longitudinal direction of the moving body entering the hopper. By doing so, there is an excellent effect that the clogging phenomenon of the hopper outlet by the dust is solved by breaking the balance of the force causing the bottleneck.

Claims (4)

A dust barrier protein 12 having elasticity and mounted to seal the through hole 91a formed at the lower side of the hopper 91; The rod 32 fixed through the dust barrier protein 12, the piston 34 which is moved forward and backward by supply of high pressure air, the front end of the rod 32 and the rear end of the piston 34 pass through. A cylinder 30 having an air supply hole 32a formed so as to be provided outside the hopper 91; An air injection hole 41a connected to the air supply hole 32a and attached to the front end of the cylinder 30 by air and the air pressure injected through the air injection hole 41a. An inner body 43 having a through groove 43a which rotates and discharges the air radially, and the inner body 43 is accommodated therein to be rotated axially, and radially penetrated therein, in a plurality of longitudinal and circumferential directions. Discharge blockage preventing device of the hopper comprising a moving body (4) consisting of a front body 42 having air outlet holes (42b) arranged in a dog. 2. The apparatus of claim 1, further comprising a valve (20) for opening and closing the through hole (91a) of the hopper by forward and backward driving of the cylinder (22). The rod 32 of the cylinder 30 and the rear body 41 of the movable body 4 is connected via a coil spring-like elastic support member 39, the rod 32 The air supply hole (32a) of the air injection hole (41a) of the rear body 41 is connected to the outlet of the hopper, characterized in that connected via a flexible hose (35). The hopper of claim 1, wherein the inner body 43 is rotated by a blade 43b which generates rotational force by high pressure air injected from the air injection hole 41a of the rear body 41. Outlet blockage.