KR20120035753A - Forming apparatus and method - Google Patents

Abstract

PURPOSE: A shaping apparatus and a method for the same are provided to manufacture shaped coal at adequate intensity and shaping rate by controlling the introduction and the direction of raw materials. CONSTITUTION: A shaping apparatus includes shaping rolls(10, 20) and a raw material introduction adjusting unit(40). The shaping rolls face and rotate in order to shape raw materials into compressed shaped materials. The raw material introduction adjusting unit is arranged at the upper side of the shaping rolls. The raw material introduction adjusting unit adjusts the introduction of raw materials into the shaping rolls by including an adjusting member(42). The raw materials are uniformly introduced between the shaping rolls.

Description

Forming Apparatus and Method

The present invention relates to a molding apparatus and method for pressing and molding a raw material, and more particularly, to adjust the input (distribution) of the raw material to the forming roll to compress the raw material into a molded article while rotating and facing each other, thereby adjusting the appropriate strength of the molded product. Or it relates to a molding apparatus and method that enabled the molding rate secured.

In the drying process of coal pretreatment in the steel mill, a large amount of (dust) dust is generated, and such dust is stored in a hopper through dust collection, etc., and then mixed with (undried) coal in a mixer with a binder, water, etc., It is made into coal briquettes through a molding machine (roll).

However, such (dust collected) fine dust or (undried) coal is primarily stored in a storage facility (hopper) in order to be introduced into a molding machine.

That is, the storage is fed into the molding machine through a storage dispensing device, for example, a screw feeder, a rotary valve, etc. provided in the lower part of the storage facility, and such a molding machine has a processing groove for molding on the surface of the forming roll facing each other. Are provided to continuously shape coal briquettes of a predetermined standard.

At this time, the input state (distribution) of the coal briquette raw material (for example, a mixture of fine dust and coal) which is put into the forming roll is important. When the raw material is excessively added or does not reach the normal dosage, the strength or forming rate of the coal briquettes is increased. It will not work normally.

Therefore, the coal briquette raw material should be injected from the hopper serving as a dispensing facility with uniform distribution to the opposite forming rolls, so that the compressive strength is uniformly distributed between the forming rolls, thereby enabling the formation of higher strength coal briquettes. Coal briquette forming ratio can also be maintained well.

By the way, although not shown in the separate drawings, in the conventional case, since the raw materials are simply dropped into the forming rolls through the hopper, the problem of easily throwing (falling) the raw materials into one of both forming rolls is easily generated.

On the other hand, in order to eliminate the input unevenness during the raw material input, a simple guide plate is fixedly installed toward the raw material input space between the forming rolls. However, since the fixed guide plate is fixed, the input distribution of the raw material is adjusted. There was no effectiveness in doing.

Accordingly, the applicant of the present invention has proposed a present invention in which the raw materials can be added to the forming rolls facing each other in a uniform distribution, thereby improving not only the coal briquette strength but also the coal briquette forming ratio.

However, the present invention is described as one example of the application to the coal briquette forming process, but it is, of course, applicable to the molding of other moldings that can be press-molded at least as a forming roll.

The present invention has been proposed in order to solve the conventional problems as described above, the object of the present invention is to adjust the raw material input distribution to the forming roll to compress the raw material to form a molded product while being rotated to face each other, the appropriate strength or molding rate It is to provide a molding apparatus and a method that can ensure the.

As a technical aspect for achieving the above object, the present invention, a forming roll provided so as to form the raw material into a compression molding while being rotated to face each other; And,

A raw material input adjusting means disposed above the forming roll and provided to adjust the raw material feeding into the forming roll;

It provides a molding apparatus configured to include.

Preferably, the raw material input adjusting means of the forming roll is provided to be capable of lifting and lowering between the forming rolls to at least a length corresponding to the length of the forming rolls so that the raw material can be introduced in a uniform distribution state between the forming rolls. And a lifting type raw material input adjusting member.

More preferably, the elevating type adjusting member is arranged to be capable of elevating from the inside of the guide member to the forming rolls through an actuator provided on the guide member disposed between the forming roll and the upper raw material dispensing container. The molding roll input distribution is provided to be adjustable, and the actuator is provided by a ball screw or a hydraulic or pneumatic cylinder driven by a motor.

More preferably, the actuator of the ball screw motor or the hydraulic or pneumatic cylinder is associated with the device control unit to control the driving, the device control unit is provided in conjunction with at least one forming roll to adjust the forming roll spacing It is connected to the pressure sensor part connected to the drive cylinder.

More preferably, the press-molded product is provided as coal briquettes, and the raw material discharging container may be provided as a screw feeder hopper in which raw coal briquette raw materials are stored and discharged and provided to be injected between the forming rolls.

In addition, another technical aspect of the present invention is a molding method using the forming apparatus, wherein a raw material is introduced into a forming roll by using a lifting-type adjusting member provided in the forming apparatus while feeding a raw material from a discharge hopper to the forming roll. Adjusting; And,

Molding the input raw material into a molding by compressing the input raw material through a forming roll;

It provides a molding method comprising a.

Preferably, the molding is provided with coal briquettes, and more preferably, the driving actuator of the lifting and lowering adjustment member is configured in connection with an apparatus control unit associated with a pressure sensor unit associated with a cylinder for adjusting the spacing of the forming rolls. To control the intensity.

According to such a molding apparatus and method of the present invention, it is possible to control the input (direction) of the raw material into the forming roll for pressing the raw material to form the coal briquettes while being rotated to face each other, thereby enabling the production of coal briquettes at an appropriate strength and molding rate. To provide such effects.

1 is a process chart showing a coal briquette manufacturing line including a molding apparatus of the present invention,
2 is a block diagram showing a molding apparatus according to the present invention,
3 is a side configuration view showing a molding apparatus of the present invention,
4 is a front configuration diagram showing the present invention molding apparatus of FIG.
5 is an operation state diagram showing a control state of the molding apparatus of the present invention,
6 and 7 are graphs showing the correlation between the forming rate of the coal briquettes and the forming strength according to the raw material level and the raw material input distribution.

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

First, FIG. 1 illustrates a coal briquette manufacturing line 100 as an embodiment to which a molding apparatus 1 according to the present invention is applied. Therefore, in the following description of the present embodiment, the molding to be compression-molded in the molding apparatus 1 of the present invention will be described as coal briquettes 2 ', and the molding raw material 2 will be described as a mixture of coal and dust which are raw materials of coal briquettes. Hereinafter, the raw material 2 will be described collectively.

Of course, as described above, the molding apparatus or method of the present invention is not necessarily limited to shaping coal briquettes, and is compressed into molding between molding rolls 10 and 20 that are rotationally driven to face each other to form a molded article of a predetermined shape. Naturally, it is applicable to all raw materials.

For example, as shown in Figure 1, the coal briquette manufacturing line 100 includes a molding apparatus 1 of the present invention described in detail in the following Figures 2 to 4.

That is, as shown in FIG. 1, in the coal briquette manufacturing line 100, a multi-stage belt conveyor collected from the dust collector 112 and stored in the dust hopper 110 and the differential dust 4 stored in the storage tank 150. The (undried) coal 6 supplied through the 152 is provided with a bucket 102b consecutively arranged at a predetermined interval on one side of the belt 102a transported in an endless track so as to be a shipment, that is, coal briquette raw material (undried). ) A mixture of coal and fine dust is fed to a bucket-type conveyor 102 which allows for upward transport.

In addition, the dust 4 and the coal 6 are sequentially supplied to the mixer 130 through the bucket-type conveyor 102, and the mixing is performed through the paddle 132 and the chopper 134 in the mixer 130. As a result, the mixture agglomerates are removed, and the binder (solution) and water or a mixture thereof are injected into the respective feeders 192 and 194 through the spray nozzle 136, and then sprayed, and the mixed coal briquette raw material 2 (coal) + Dust) is fed to a screw feeder hopper (60 in FIGS. 2 and 3).

Therefore, the supplied raw materials are introduced between the forming rolls 10 and 20 which are rotationally driven while facing each other of the molding apparatus 1 of the present invention, and the raw materials 2 are compressed between the forming rolls 10 and 20 while being predetermined. The coal briquettes 2 'are shaped.

Meanwhile, FIG. 2 specifically illustrates the forming rolls 10 and 20 of the forming apparatus 1, for example, the processing grooves 12 and 22 formed on the surface of the forming rolls in accordance with the shape of the coal briquettes. Is provided to form coal briquettes.

Then, in addition to the motor (unsigned) driven feeder 62 provided in the upper screw Peter hopper 60, through the lower horizontal screw feeder 64, the coal 6 and the fine powder in the mixer 130 The dust 4 is molded into a coal briquette 2 '(that is, a molded article) of a predetermined form while the raw material 2 mixed with the binder and water is compressed.

3 to 5, the molding apparatus 1 of the present invention is shown in more detail.

That is, as shown in Figures 3 and 4, the molding apparatus 1 according to the present invention is an embodiment of the configuration, as described in detail in FIG. Raw material input adjusting means which basically includes the forming rolls 10 and 20 provided to form the furnace, and in particular, the molding apparatus 1 of the present invention is arranged above the forming rolls and provided to adjust the raw material input to the forming rolls. It further includes 40.

Therefore, since the molding apparatus 1 of the present invention includes the raw material input adjusting means 40 as compared with the conventionally simply dropping from the hopper while the raw material is put on the forming roll, the raw material is formed on the forming roll ( 10) solves the problem of being thrown into one of (20), for example, the problem that the coal briquette strength is not properly formed as described in detail below.

In addition, it is possible to prevent the overload of the roll due to excessively loaded (loaded) the raw coal to only one of the pair of forming rolls 10 and 20.

At this time, as shown in Figures 3 and 4, in the molding apparatus 1 of the present invention, the raw material input adjusting means 40 of the forming roll is formed at least between the forming rolls 10 and 20. It includes a lifting-type raw material input adjustment member 42 which is formed to have a length corresponding to the length of the roll and is provided to be elevated.

Such a lifting type raw material input adjusting member 42 extends substantially the length of the forming rolls 10 and 20 or extends longer than that, so that the raw material 2 falling from the screw feeder (hopper) is formed on the forming roll. It may be a lifting plate to be evenly distributed on the basis of the input space (interval between the rolls) between (10) and (20).

On the other hand, the lifting type adjustment member 42, which may be provided as such a lifting plate, as shown in Figures 3 and 4, the connection arrangement between the screw feeder hopper 60, which is a raw material dispensing container and the forming roll The actuator 44 provided on the guide member 80 (frame) may be disposed so as to be able to elevate (beveled) from the inside of the guide member toward the forming rolls.

3 and 4, the actuator is provided as a ball screw driven in the vertical direction as a motor 46 installed on one side of the bracket 47 provided on the guide member 80, or not shown It can be provided as a hydraulic or pneumatic cylinder.

For example, as shown in Figure 4, the motor 46 is connected to the rotation shaft 45 connected to both gearbox 48 via the reduction gear 46a is connected to the rotational force, the both gearbox The ball screw, which is the actuator 44, is vertically assembled to the 48 at a predetermined length in accordance with the inclination of the guide member 80. The lower end of the ball screw is provided with the coupling 49 via the coupling 49. A lifting plate, which is a raw material input adjusting member 42, is connected.

Accordingly, as shown in FIG. 3, the actuator 44 which is a ball screw according to the driving of the motor rotates in a state in which a gear part not shown in the gearbox is engaged in accordance with the rotation direction of the rotation shaft 45 in the gearbox. As you go up or down.

At this time, the guide block (bearing block) 50 for supporting the rotation while the actuator 44 of the ball screw passes through the upper plate of the guide member 80 may be fastened.

As a result, the adjusting member 42 of the elevating type raw material feeding adjusting means, as shown in Fig. 3, is inclined to be inclined toward the forming rolls, so that the raw material 2 introduced between the forming rolls is not biased to one side of the forming rolls. To be added.

Next, as shown in Figure 3, in the molding apparatus 1 of the present invention, the control unit (C) to control the driving of the motor 46 or the hydraulic, pneumatic cylinder of the ball screw that is the actuator 44 ) Is linked (of course, in the case of oil and pneumatic cylinders, in conjunction with the oil and pneumatic supply unit, it is natural to control the driving of the cylinder as a result), the device control unit C, at least one forming roll 20 and It is connected to the pressure sensor unit (S1) associated with the cylinder 24 is provided to adjust the gap between the roll forming.

Therefore, as will be described again with reference to FIG. 7, according to the distribution of raw materials supplied to the forming rolls, there is a difference in the strength of the molded product that is compression molded in the forming roll, that is, the coal briquette 2 '.

Accordingly, in the case of the present invention, the motor 46 for driving the ball screw of the actuator 44 for controlling the rising and lowering of the lifting type raw material input adjusting member 420 is connected to the device control unit C, and at the same time the device Since the control unit C is associated with the pressure sensor unit S1 associated with the cylinder 24 for adjusting the spacing of the forming rolls, the control unit C controls the lifting position of the elevating type raw material input adjusting member 42 in response to the forming strength. You can do it.

Meanwhile, although schematically illustrated in FIG. 3, the pair of forming rolls 10 and 20 facing each other has a cylinder 24 connected to at least one of the bearing parts (bearing blocks) 10a and 20a on which the shaft parts are supported. Such a moving bearing 20a may be supported by a transfer unit 26 schematically illustrated in the drawings, for example, a transfer unit 26 having a rail and a guide structure.

Therefore, according to the driving of the cylinder 24, one forming roll 20 is finely moved, thereby adjusting the spacing between the forming rolls, which wears the processing grooves of the forming rolls or increases the strength of the raw material of the coal briquettes. When it is necessary to reinforce, it is for adjusting the roll space | interval and maintaining the intensity | strength of coal briquettes appropriately.

Meanwhile, as shown in FIG. 2, the actual forming rolls 10 and 20 are disposed inside the outer frame member 90 to block raw material scattering during molding, and the roll shaft parts are connected to the bearing parts on the frame. Although only one forming roll is shown in FIG. 2, the rotating force is transmitted through the spindle 14 that is rotated through the motor 14b and the driving belt (chain) 14a.

Therefore, although schematically illustrated in the drawings, as shown in FIG. 3, the spindle 14 connected to the forming roll 20, in which the cylinder 24 is connected and moved, has a rotation angle variable to compensate for the moving width of the forming roll. It can be assembled in the form.

Next, in Fig. 6 and 7, the appropriate molding ratio and molding strength of the coal briquettes 2 'formed through the forming rolls 10 and 20 of the molding apparatus 1 of the present invention as described above is the hopper level state of the raw material. And the correlation according to the forming roll injection state (elevation position of the elevating type adjusting member 42) of the raw material.

That is, in FIG. 6, the shaping | molding ratio (%) according to the raw material level of the screw feeder hopper which is the discharge container 60 is shown by the graph.

For example, it can be seen that the forming rate of coal briquettes is high when the raw material level is maintained at an appropriate level rather than excessively low or high. For example, the forming rate is proportional to the actual rotational speed of the forming rolls 10 and 20. Therefore, if the raw material level is high, the input of the raw material is continuously made stably, and the load force applied to the forming roll by gravity during dropping is high, so that the rotational speed of the forming roll can be increased. The rotation speed of is to implement the control to reduce.

By the way, as shown in the graph of Figure 6, when the raw material level is excessively high it can be seen that the molding rate is lower, and in the graph of Figure 6 it can be seen that the molding rate when maintaining the appropriate raw material level of the elliptical portion.

That is, as shown in Figure 5, in the molding apparatus 1 of the present invention, the level sensors (L1) (L2) are arranged in the hopper which is the dispensing vessel 60, and the encoder 15 disposed on the shaft portion of the forming roll is sensor In connection with the receiving unit (S2), the sensor receiving unit (S2) in conjunction with the device control unit (C), the device control unit (C) is associated with a sensor (S3) for detecting the state of the shaped coal briquettes, the device The control unit C is associated with a motor 14b (see Fig. 2) which determines the rotational speed of the forming roll.

Therefore, when the level in the hopper and the rotation speed of the forming roll are transmitted to the device control unit through the sensor and the encoder through the sensors and the encoder, the device control unit receives data from the sensor detecting the state of the coal briquettes, and performs the overall comparison operation. By controlling the operation of the forming roll motor, thereby controlling the appropriate forming roll rotational drive.

Next, Fig. 7 shows the coal briquette strength according to the lifted position of the lift-type adjustment member 42 of the raw material input adjustment means 40 of the present invention. That is, it can be seen that the strength of the coal briquettes can be increased as much as possible when the position of the elevating adjustment member is properly adjusted.

Therefore, as described with reference to FIG. 3, the motor 46 (or cylinder) for driving the actuator 44 for elevating the elevating type adjusting member 42 of the present invention includes a cylinder 24 for adjusting the forming roll strength. It is preferable that the device control unit C be linked.

For example, as shown in Figure 5, the forming roll driving cylinder 24 is associated with the device control unit C via the pressure sensor unit (S1) for measuring the cylinder pressure change, the device control unit (C) is elevated While connected to the motor 46 for driving the actuator of the ball screw connected to the mold adjustment member 42, more preferably, the device control unit (C) may be associated with the coal briquette strength sensor (S3).

Therefore, in the molding apparatus of the present invention, when the pressure of the cylinder 24 is transmitted from the pressure sensor unit to the apparatus control unit, and data about the state of the coal briquette strength is transferred to the apparatus control unit, this is calculated and compared in the apparatus control unit, and the raw material input of the present invention. It is possible to control the position of the elevating plate, which is the adjusting member 42, through which the device control unit C can control the driving of the cylinder 24 to control the strength of the coal briquettes while controlling the distance between the forming rolls.

Accordingly, the coal briquette (molded product) molding method using the molding apparatus 1 of the present invention described so far is summarized, as shown in Figures 3 to 5, the molding method using the molding apparatus 1 of the present invention. First, the raw material 2 is introduced between the forming rolls in the hopper 60, which is a dispensing container, and at the same time, by using the lifting type adjusting member 42 of the raw material input adjusting means 40 provided in the molding apparatus of the present invention. Then, the feed state of the forming roll of the raw material is adjusted, and then the input raw material is appropriately compressed between the forming rolls 10 and 20 to be formed into coal briquettes.

At this time, preferably, as described above, the drive actuator 44 of the elevating adjustment member 42 and the device control unit associated with the pressure sensor unit (S1) associated with the cylinder 24 for adjusting the spacing of the forming rolls; By linkage construction, the strength of coal briquettes is controlled.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be variously modified and varied without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

1 .... molding apparatus of the present invention 10, 20 .... forming roll
40 .... Raw material input adjusting means 42 .... Lifting material input adjusting member
44 .... Actuator 60 .... Raw Material Dispenser
80 .... Guide member C .... Device control unit
S1 ... pressure sensor

Claims (7)

Forming rolls 10 and 20 provided to form the raw materials into compression moldings while being rotated to face each other; And,
A raw material input adjusting means 40 disposed above the forming roll and provided to adjust the raw material input to the forming roll;
Molding apparatus configured to include.
The method of claim 1,
The raw material input adjusting means 40 of the forming roll is provided to be capable of lifting and lowering between the forming rolls 10 and 20 so as to be at least a length corresponding to the length of the forming roll to uniformly distribute the raw material between the forming rolls. Forming apparatus comprising a lifting-type raw material input adjustment member 42 configured to be put in a state.
The method of claim 2,
The lifting type adjusting member 42 is lifted from the inside of the guide member toward the forming roll via an actuator 44 provided on the guide member 80 disposed between the forming roll and the upper raw material dispensing vessel 60. Arranged so as to be able to adjust the injection roll distribution of the feed material (2),
The actuator is a molding machine, characterized in that provided by a motor-driven ball screw or a hydraulic, pneumatic cylinder.
The method of claim 3,
The motor 46 or the hydraulic / pneumatic cylinder of the ball screw, which is the actuator, is linked with the device control unit C to control the driving thereof.
The apparatus control unit (C), characterized in that connected to the pressure sensor unit (S1) associated with the drive cylinder (48) provided to adjust the gap between the forming rolls in conjunction with at least one forming roll (20).
The method according to any one of claims 2 to 4,
The press-molded product is provided as coal briquettes, and the raw material dispensing container (60) is formed as a screw feeder hopper provided with raw coal briquettes stored and discharged so as to be fed between molding rolls.
In the molding method using the molding apparatus according to any one of claims 1 to 4,
Adjusting the feed roll input state of the feed material using the feed input adjusting means provided in the forming apparatus while feeding the feed material between the feed rolls in the dispensing hopper; And,
Molding the input raw material into a molding by compressing the input raw material through a forming roll;
Molding method comprising a.
The method of claim 6,
The molding is provided as a coal briquettes, and forming the drive actuator of the elevating type adjustment member in conjunction with the device control unit associated with the pressure sensor unit associated with the cylinder for adjusting the spacing of the forming roll to control the coal briquette strength.

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