KR200267437Y1 - Hopper blocking device of fixed quantity dispensing equipment - Google Patents

Abstract

The present invention automatically detects a blockage in a hopper temporarily storing a raw material such as coal on a belt conveyor before discharging it in a fixed amount (quantity) so that the hopper is quantitatively discharged by hitting the hopper. The present invention relates to a hopper clogging prevention device for a fixed quantity dispensing facility, comprising: a pressure transmission plate (10) (10 ') provided on the inner surface of a hopper (120) via a pin (12), and the pressure transfer plate (10) ( A pressure transfer rod 20 for transmitting rotational force from 10 ′, a lock block 30 that is separated from each other by a wedge-shaped end 28 of the pressure transfer rod 20, and the lock block 30. ) Is provided so that the striking bar 50 to strike the pressure transfer plates 10 and 10 'with the elastic force from the elastic member 56 and the striking bar 50 to be in place. It consists of the member 40 and the electromagnet 80.

Description

Hopper blocking device of fixed quantity dispensing equipment

The present invention relates to a quantitative dispensing device for discharging a raw material such as coal in a fixed amount (quantity) on the belt conveyor, and more specifically, to prevent clogging in the hopper temporarily accommodated before discharging the raw material on the belt conveyor. The present invention relates to a hopper blockage preventing device of a fixed quantity dispensing system which detects an automatic and strikes the hopper to effect a fixed quantity dispensing of raw materials.

In general, it is preferable to quantitatively dispose raw materials, such as coal, by using a belt conveyor and other needs.Then, after temporarily storing coal 110 in the hopper 120 in a steel mill, A schematic configuration of a facility for quantitatively discharging coal 110 from the hopper 120 and discharging it onto the belt conveyor 130 is shown in FIG. 1.

The biggest problem that occurs in this fixed quantity dispensing facility is that the outlet side of the hopper 120 is blocked by coal so that the coal is not discharged onto the belt conveyor (see FIG. 2), which is usually stored in the hopper 120. This is due to the moisture contained in the (110), and if the clogging of coal in the hopper occurs, it is necessary to follow up promptly so as not to adversely affect the post-process.

Conventionally, as illustrated in FIG. 2, when the coal clogging occurs in the hopper, a method that is used to deal with this, the worker using a hammer (hammer) or the like, the outer surface of the lower outlet side of the hopper 120 (120a) And a vibrator 140 for generating vibrations on the outer surface of the lower outlet side of the hopper 120 by applying a strike to the hopper 120 and a hopper by vibration generated from the vibrator 140. (120) It is a method to prevent coal clogging inside.

However, in the former method, the operator monitors whether the hopper is clogged, and if the blockage occurs, the opening operation is performed. This operation is performed more effectively than other methods, while the clogging has already occurred for a predetermined time. It is unavoidable that the dispensing of raw materials is unavoidable, and it has been a cause of avoidance of work due to the weight of the physical load by the operator directly using the hammer, and also the risk of safety accident due to the price of the hammer. In the latter method, since the variables such as the moisture content of coal contained in the hopper 120 are many and complicated, it is not easy to set the vibration mode that is most suitable for it, and thus it is practically not widely used in the opening method. Vibration force by 140 chops coal 120, blockage occurs It is also causing the.

The present invention has been devised to solve such a conventional problem, and its purpose is to block the hopper's outlet without smoothly discharging coal from the hopper for temporarily accommodating raw materials such as coal and quantitatively discharging them in appropriate places. The present invention provides a hopper blockage preventing device of a fixed quantity dispensing system which automatically prevents blockage by automatically hitting the outer surface of a hopper by sensing a force of coal.

1 is a perspective view schematically showing a typical metering facility

Figure 2 is a front schematic view of the hopper and belt conveyor shown in order to explain a method for solving the blockage phenomenon occurring in the hopper of a conventional metering device

Figure 3 is a perspective view showing one side of the hopper with a hopper clogging prevention device of the metering device according to the present invention cut

Figure 4 is a plan view of Figure 3 showing a hopper blockage preventing device of the metering device according to the present invention

5 is a detailed view of the main part of the present invention.

Explanation of symbols on the main parts of the drawings

10,10 '... Pressure plate 12 ... Pin

19 ... Housing 20 ... Pressure bar

22 ... elastic member 24 ... receiving hole

26 ... support protrusion 30 ... locking block

32 ... wedge end 40 ... elastic member

42 ... shock absorbing member 44 ... proximity sensor

50 ... blow bar 52 ... receiving hole

54 .. Jaw 56 ... Elastic member

60 ... stopper body 62 ... stop

66 ... ball 70 ... connection hole

80 ... electromagnet

As a technical configuration for achieving the above object, the present invention is a hopper clogging prevention device of a quantitative dispensing equipment having a hopper to temporarily receive raw materials such as coal and quantitatively discharge the raw material such as coal, the pin on the inner surface of the hopper A plurality of pressure transfer plates are installed to be symmetrical with each other, and the pressure transfer rods fixed to the bottom outer center of the pressure transfer plate are accommodated together with an elastic member adapted to apply an elastic force to a fixed side in a receiving hole of a housing mounted to the hopper. The other end of the pressure transfer rod has a wedge-shaped end, and a plurality of locking blocks having trapezoidal wedge ends are arranged to be adjacent to each other in a connection hole branched in a T-shape at the inner end of the feeding hole, and the locking The ends of the connecting holes formed larger than the combined lengths of the blocks have the same direction as the receiving holes. Receiving holes are formed respectively, one opening of the receiving hole toward the elastic member which is fixed to the one end of the pressure-shaped receiving member of the pressure plate, the other end is a stopper to receive the elastic member and the center portion is caught in the connection hole A stopper body made of permanent magnets and having a ball adapted to apply elastic force toward the stop jaw in contact with the receiving hole, and a striking rod fixed to the stopper body forms a stone jaw to contract the elastic member, A proximity sensor is built into the shock-receiving member, and the receiving hole is provided with an electromagnet configured to move the stopper body toward the elastic member when the magnetic force is formed, and the proximity sensor and the electromagnet are provided in a controller for processing power supply and control signals. By providing a hopper blockage preventing device of the metering device characterized in that the connection.

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

Figure 3 is an external perspective view showing one side wall of the hopper with a hopper blockage preventing device of the metering device according to the present invention, Figure 4 is a plan view of Figure 3, a hopper 120 usually made of a four-sided cross section The apparatus is mounted on the outer surface of the outlet, more preferably on the site where the conventional hammer striking action against clogging occurring in the hopper 120 is performed.

The device is installed symmetrically on any one pair of walls of the hopper 120 outlet formed in four sides in parallel to each other, the upper end of the hopper 120 through the pin 12 in the inner surface of the hopper 120 And a pressure transmission plate 10 formed of a substantially rectangular shape having a size that is rotatably mounted in a shape of a wall, the bottom portion of which is formed to be approximately equal to the size of a wall to be installed and extended to an outlet end side of the hopper 120. (10 ').

Since the device of the present invention is formed symmetrically, the subscripts (') are indicated to indicate the components located on the right side of the drawing, and the components positioned on the left side are shown, and description thereof is described only when necessary. Otherwise, it will be omitted.

An inner end portion of the pressure transfer rod 20 extending horizontally through the hopper 120 is fixed to the center portion of the outer surface of the lower end side of the pressure transfer plates 10 and 10 ′. 20, the longitudinal outer surface diameter is formed differently so that the outer spring having a smaller diameter is coiled elastic member 22 having an appropriate modulus of elasticity, and the elastic member 22 is The pressure transmission rod 20 is pushed toward the hopper 120 by an appropriate force by the support protrusion 26 formed by protruding inward to the outer end of the accommodation hole 24 to accommodate the pressure transfer rod 20. The outer end of the) is configured to extend outwardly than the support protrusion 26 to form a wedge-shaped end 28 at its end. At this time, the receiving hole 24 is integrally fixed to the outer surface side of the hopper 120 is provided inside the housing 19 to accommodate the device of the present invention by providing a predetermined space, the elastic member 22 The elastic modulus of the invasion into the area of the lock block 30 which the wedge-shaped end 28 will be described later when contracted by the pressure generated by the coal accommodated inside the hopper 120 where the normal raw material discharge is made. Should not be set.

In addition, a plurality of appropriately disposed so as to be parallel to each other at approximately the same height as the pressure transfer rod 20 of the pressure transfer plate 10, 10 'and symmetrically with respect to the pressure transfer rod 20. The coil spring type elastic member 40 having an elastic modulus has an inner end thereof accommodated and fixed in an approximate X-shaped accommodating member 42 formed in the pressure transmission plates 10 and 10 ', and the X-shaped accommodating member. The inner surface of the center portion 42 forms a recess 42a that is more concave than the other portions, and the proximity sensor 44 is fixed to the recess 42a, wherein the proximity sensor 44 is a recessed accommodating member. It does not protrude from the inner surface of the member 42, so that the impact rod 50, which will be described later, is not damaged by the impact rod 50 even when the impact member 50 hits the X-shaped receiving member 42 side. The other end of the elastic member 40 is a proper length is formed to the outside of the fin-shaped receiving member 42 to be maintained at the free end, the proximity sensor 44 is the end of the striking rod 50 is close to To detect the signal and major the detection signal in a separate control unit.

While hitting the hopper 120 while compressing the elastic member 40 hitting the hopper 120 or the striking rod 50 to be separated from the hopper 120 by the repulsive force is the housing 19 The receiving hole 52 is slidably accommodated in the receiving hole 52 formed therein and, of course, the receiving hole 52 is formed at a position parallel to each other with the other receiving hole 24 and symmetrical about the receiving hole 24. In addition, the end of the hopper 120 is open and the other end is closed.

A free end side of the elastic member 40 when the striking rod 50 is moved toward the hopper 120 by protruding more than other portions on the outer surface at a predetermined distance from the front end of the striking rod 50. A stopper 54 is provided to push the end toward the hopper 120 to contract the elastic member 40, and the end opposite to the hopper 120 is slidably accommodated so as to slide along the receiving hole 52. It is fixed to one end of 60. In addition, the other end of the stopper body 60 to be in contact with the one end of the coil spring type elastic member 56 accommodated in the receiving hole 52 and has a certain degree of elastic modulus, the elastic The other end of the member 56 is located at the closed end of the receiving hole 52.

The end portion of the stopper body 60 side of the elastic member 56 is formed of a permanent magnet so that any one of N poles or S is positioned toward the elastic member 56 side, and the center portion of the stopper body 60 has the accommodation hole. Protruding to the end side of the connecting hole 70 formed horizontally so as to connect the center portion of each other with a certain height, and the front and rear end portion with respect to the receiving hole 52 to form an appropriate degree of inclined stop jaw And forming a radially formed hole 63 on the opposite side of the stopping jaw 62 and applying an elastic repulsion force to the outside to an appropriate extent by the elastic member 64 accommodated therein. Install the ball 66 to be in contact with the inner surface. Of course, even if the stopper 62 is formed, the size of the stopper body 60 should be appropriately set so that the sliding movement in the receiving hole 52 is not impossible.

The central portion of the connecting hole 70 is connected to the end of the receiving hole 24 that accommodates the pressure transfer rod 20, and the connecting hole 70 has a trapezoidal shape in which one end thereof gradually decreases in diameter. The lock block 30 having a wedge end 32 is accommodated in a slidable manner, wherein the lock block 30 is provided so that the wedge end portions 32 are in contact with each other, and the wedge in the length thereof. When the end 32 is in contact with each other, the other end thereof is in contact with the stopper 62 accommodated in the connection hole 70, and the wedge end 32 is a wedge-shaped end of the pressure transfer rod 20. When the 28 penetrates into the inside of the connection hole 70, the locking block 30 is separated from each other by the wedge-shaped end 28, and the stop jaw 62 is discharged from both ends of the connection hole 70, respectively. It is made into a shape to make it.

In addition, the present invention is provided with an electromagnet 80 to be able to apply a force to the permanent magnet of the stopper body 60 when necessary, the electromagnet 80 is the stopper body 60 toward the hopper 120 side When the striking rod 50 fixed to it is returned to its original position by the repulsive force of the elastic member 40 after hitting the hopper 120, at an appropriate time, the energy to return by the striking is compared with the energy before the price. Since it is reduced, the elastic member 56 will be contracted and the stop jaw 62 will stop at a position where it will not be inserted into the end of the connecting hole 70 side. In such a position, the stopper body 60 will be caused by electromagnetic force. In order to be able to supply the returning force, as shown in the drawing, the elastic member 56 is installed in the receiving hole 52 of the part where it is accommodated, and the electromagnet 80 is stowed by receiving power from a separate control unit. Thereby applying a magnetic force to draw the body (60).

The action of the present invention having the above configuration, the pressure transmission by the elastic member 22 is set in consideration of the force applied to the pressure transfer plate 10 during normal dispensing operation is not blocked in the hopper 120 The rod 20 is maintained while applying an appropriate force to the pressure transfer plate 10, and in this state, the stopper body 62 compresses the elastic member 56, and the stopping jaw 62 is connected to the connection hole ( 70) and the wedge-shaped end 28 of the pressure transfer rod 20 does not penetrate into the connecting hole 70 side, so that the locking block 30 is in contact with each other. The stopper 62 of the stopper body 60 is inside the end side of the connection hole 70, and the electromagnet 80 is cut off to lose its magnetic force.

While maintaining the normal state, if the coal received in the hopper 120 is not intended to be discharged normally, at this time, the force generated from the coal is applied to the pressure transfer plate rather than being applied in the direction to discharge to the lower side. It is applied in a direction perpendicular to 10, and thus the pressure transfer plate 10 is rotated toward the device side of the present invention around the pin 12 while overcoming the repulsive force of the elastic member 22.

Accordingly, the pressure transfer rod 20 accommodated in the accommodation hole 24 moves the wedge-shaped end 28 formed at its end side by the rotation of the pressure transfer plate 10 to the inside of the connection hole 70. The wedge-shaped end 28 is applied to the wedge end 32 of the lock block 30 which is in contact with each other so as to move away from each other, which is in contact with the other end of the stop block body (30) The stopper 62 of the 60 is pushed outward from the inner side of the end of the connection hole 70, whereby the stopper body 60 is pressed by the elastic repulsive force of the elastic member 56. To the side.

The movement of the stopper body 60 as a result of applying a price to the shock-receiving member 42 by the striking rod 50, this price impacts the coal to prevent the clogging phenomenon no longer continue Ensure that the correct metering operation is maintained.

Thereafter, the striking rod 50 is returned to its original position by the restoring force of the contracted elastic member 40 (of course, the elastic modulus and the length of the elastic member 40 is applied to the striking rod 50). The proximity sensor 44, which is built in the shock receiving member 42, is set so as to apply an appropriate price to the transfer plate 10, and at the same time, the striking rod 50 has a pressure transfer plate 10. It is detected that the hitting, such information is transmitted to a separate control unit, so that after a very short time the control unit supplies power to the electromagnet 80, so that the magnetic force is generated in the electromagnet 80 The stopper body 60 that has been returned to the ground is pulled so that the stop jaw 62 can be seated in the connection hole 70. Of course, the power applied to the electromagnet 80 is blocked after a suitable time to wait for the next work.

As described above, according to the hopper blockage preventing device of the metering device according to the present invention, the blockage of the hopper is detected by a pressure sensing plate installed to face each other inside the hopper, and the blockage detection is separately provided to the outside of the hopper. The rod strikes the pressure sensing plate, and the striking rod returns to its initial state by the repulsive force and the electromagnetic force of the elastic member, thereby automatically detecting the blockage inside the hopper and automatically preventing the blockage from occurring. Therefore, it can reduce the work load by the clogging prevention work by manual work and has an excellent effect to prevent equipment accidents in advance.

Claims (1)

In the hopper blockage preventing device of the fixed quantity dispensing equipment having a hopper to temporarily receive raw materials such as coal, and to sperm out the belt conveyor, The plurality of pressure transfer plates 10 and 10 'installed on the inner surface of the hopper 120 via the pins 12 are symmetric with each other, and are fixed to the bottom outer center of the pressure transfer plates 10 and 10'. The pressure transfer rod 20 is accommodated together with the elastic member 22 adapted to apply an elastic force to a fixed side in the receiving hole 24 of the housing 19 mounted to the hopper 120, the pressure transfer rod 20 The other end of the plurality of lock blocks having a wedge-shaped end 28, the trapezoidal wedge end 32 is disposed in the connection hole 70 branched in a T-shape at the inner end of the receiving hole 24 so as to be close to each other. 30 is accommodated, the receiving hole 52 in the same direction as the receiving hole 24 is formed at each end of the connection hole 70 formed larger than the combined length of the lock block 30, One side opening portion of the receiving hole 52 is an elastic member having one end fixed to the U-shaped receiving member 42 of the pressure transfer plates 10 and 10 '. Facing the 40, the other side closed portion receives the elastic member 56, and the center portion has a stop jaw 62 to be caught by the connection hole 70, the elastic force toward the stop jaw 62 in contact with the receiving hole 52 A stopper body 60 made of a permanent magnet is accommodated, and the striking rod 50 fixed to the stopper body 60 is provided with a ball 66 configured to apply a permanently fixed protrusion (20). 54, a proximity sensor 44 is built into the shock-receiving member 42, and the receiving hole 52 moves the stopper body 60 toward the elastic member 56 when magnetic force is formed. Electromagnet 80 is installed, the proximity sensor 44 and the electromagnet 80 is connected to the control unit for processing the power supply and the control signal hopper membrane prevention device of the metering equipment.