KR900001606B1 - Method and apparatus for collecting heat-softening fibers - Google Patents

Abstract

Heat-softening fibers are produced by melting natural ore or slag, fibering then by fiber-collecting machine having a rotary wheel (1). The machine has a conveying net (6) at collecting part, a hopper (15) having a damper (14) which can control blowing power at its lower part, seveal brushes (20,21,22) and a spray tube (19) of cleaning liquid at its lower part, two conveyors moving at the net's speed at the side of the net, many measuring roler (12) for cotroling fiber thickness at exit of fibercollecting room.

Description

Insulating method of thermosoft fiber and its device

1 is a process diagram showing the overall process of the present invention.

2 is a perspective view for explaining the overall process of the present invention.

3 is a longitudinal sectional view for explaining the overall process of the present invention.

Figure 4 is a cross-sectional view showing a conventional fiber state.

* Explanation of symbols for main parts of the drawings

1: wheel 6: net

7: rotating roller 10: peeling degree

12: measuring roller 13: inorganic fiber layer

14 ': damper 15: hopper

17: collecting chamber 18: lamellar conveyor

19: cleaning liquid spray pipe 20: brush

21, 22: brush roller

The present invention is to be collected and transported on the net net conveyor by injecting air forward to the inorganic fiber obtained by the centrifugal separation method to melt the natural ore and zebraslag to fall on the main surface of the rotating wheel rotating at high speed The present invention relates to a method for collecting a thermosoft fiber and a device thereof.

In the past, attempts have been made to make the quality of the product uniform by collecting the thermosoftening fibers but keeping the layer thickness and density of the fibers focused on the net conveyor.

For example, U.S. Patent 4,382,809 (Method and Apparatus for the Product of MINERAL FIBER FELTS HAVING FIBER-LEVELING DEVICE) by installing a bolwer so that the inorganic fibers transported by the air fall on the reticulated net conveyor, and the layered inorganic fibers dropped on the net conveyor have an irregular thickness so that a leveling brush is attached. By passing below the rotary roll, the layered inorganic fiber thickness and density were made uniform.

In this case, the thermosoftenable inorganic fiber must have a thin and long fiber diameter to obtain excellent quality. Therefore, for quality improvement, the air injected in the horizontal direction around the noodle wheel should be considerably high pressure. The phenomenon is caused.

Therefore, the inorganic fiber falling on the net conveyor forms a partial density difference according to the vortex, and this vortex phenomenon has the problem that the same condition is continuously maintained, which intensifies the unevenness of the density and thickness of the dropped inorganic fiber layer in the collecting chamber. there was.

In addition, since the net conveyor is continuously rotated by the transfer roller, the use of fiber for a while has a disadvantage in that it cannot be maintained in the continuity of the work because it requires a large amount of fiber to be attached to the process and the net conveyor needs to be cleaned or replaced.

In addition, the integrated fiber layer transported by the net conveyor is necessarily transported in contact with the inner wall of the collecting chamber. As shown in FIG. 4, the upper fiber layer transported in contact with the collecting chamber has a small amount attached to the inner wall of the collecting chamber. As the work continues, the amount of fiber attached increases and eventually the cross-section of the transported fiber layer becomes trapezoidal, which is trapezoidal. There is a problem to wear.

In addition, during the fiberization process of the melt, there is a melt or the like (hereinafter referred to as a shatter) that does not become fiber and solidifies or scatters and falls, which degrades the quality of the inorganic fiber. In other words, the shats generated from the spinning wheels are heavier than those of the spinning fibers, so they fall in the short distance and move to the integrated state of the bottom of the fiber, resulting in homogeneous heterogeneous products. As a part of the fiber density is accumulated in the chart, the micropores of the fiber are reduced to reduce the insulation and thermal insulation effect and to increase the weight above the desired density. Therefore, the shatter should be removed to achieve quality uniformity.

The present invention is to install a thickness measuring roller on the exit side of the collecting chamber in order to solve the problems of the conventional method for collecting the thermosoftening inorganic fibers and the apparatus as described above, by processing the signal detected by By controlling the damper of the suction hopper installed under the net conveyor with the obtained control signal, it is possible to suppress the occurrence of vortex phenomenon in the collecting chamber, to keep the density of the fiber falling on the net conveyor as a whole, and to continuously wash the net conveyor during the process operation. This prevents downtime for cleaning and installs lamellar conveyors on both sides of the net conveyor so that the conveyed layered fibers can be transported without being grafted to the inner wall of the collecting chamber, thereby avoiding economic disadvantages in processing the finished product. Weapons by allowing them to In order to keep the quality level of significance in the best state described in detail according to the accompanying drawings as follows.

By spraying the air toward the inorganic fiber obtained by a plurality of centrifugation method to the front to the fiber is laminated and transported to the net (6) conveyed by the rotating roller (2), (3) (4), (5), etc. In the present invention, the rotary roller 7 is installed on the upper side of the rotating roller 2 with the opposite direction of rotation and has a larger diameter, and the rotating roller 7 is positioned below the rotating wheel 1. .

Therefore, the shaft (8) falling from the rotating wheel (1) without being fibrous is dropped because it is heavier than the fibers and does not fly, and is about 1-3m forward and 1-2m downward from the position. The shaft 8 dropped on the main surface of the installed rotating roller 7 and dropped on the main surface of the rotating roller 7 which rotates in a direction opposite to the air spraying direction is rotated and receives a centrifugal force, and a part thereof is in the opposite direction to the air spraying direction. It is injected into the loading chamber (9) and the remaining part is attached to the main surface of the rotating roller (7).

In this way, the shaft 8 attached to the rotation roller 7 is to be removed because the falling shaft scatters in an irregular direction. In the present invention, for this purpose, the peeling 10 is fixed to one side of the rotation roller 7 so as to rotate. The shaft attached to the main surface of the roller 7 was brought into contact with the sharp end of the peeling degree 10 by the rotational force of the roller 7, and the point at which the chart 8 was peeled off was upper side of the loading chamber 9, It falls to the storage chamber 9.

In addition, since the apron conveyor 11 is installed below the storage chamber 9 of the present invention, the dropped shaft is transferred to the outside and discarded.

In this way, in the present invention, it is possible to separate and remove the shaft 8 so as not to fall on the net 6, and thus only the inorganic fibers selected by removing the shaft 8 are dropped onto the net 6 and transported. In this case, the thickness of the inorganic fiber layer 13 laminated on the net 6 is measured by five measuring rollers 12 installed above the net 6 outside the collecting chamber, and the measuring roller 12 is horizontally aligned. The thickness of each part is measured independently, and the result is input to an electronic computing device (not shown) as an electrical signal.

Therefore, the computing device decides whether to make each part thicker or thinner according to the current thickness of each part, and calculates the thickness to be adjusted and outputs the result. Is applied to the sphere 14.

Therefore, the damper adjustment mechanism 14 is to adjust the magnitude of the suction force by the hopper 15 by adjusting the opening degree of the damper 14 ′ in the plurality of hoppers 15 installed below the net 6.

Therefore, a proper suction force by a plurality of hoppers (15) are generated on the net (6) so that the fibers falling on the net (6) can be adjusted so that the overall thickness of the dropped inorganic fiber layer 13 is uniform. Will be.

On the other hand, in order to maintain the state in which the inorganic fiber falls on the net 6 to be laminated, the atmosphere in the collecting chamber should be in a negative pressure state, so that the amount of suction by the hopper 15 is greater than the amount of air injection for transporting the fiber. If the suction amount by the hopper 15 is excessive, the collection efficiency is initially excellent, but as time passes, the inorganic fiber falls into the net of the net 6 or blocks the net so that the suction effect is increased. There is a possibility that the thickness of the inorganic fiber layer 13 becomes uneven, and if the suction amount by the hopper 15 is too small, the suction amount adjusting function of the hopper 15 is lost, and the collector is picked up by the high-pressure air for transporting the inorganic fiber. Vortex phenomena deepen in the room, which is also uneven thickness of the inorganic fiber layer (13).

Therefore, the negative pressure in the collecting chamber must be maintained properly. This pressure control requires technical expense to detect minute pressure changes and requires the installation of an expensive system for pressure control. In order to achieve this, in the present invention, the inlet port is formed on both sides of the bottom of the net at a point of 2-3 m in front of the rotating wheel in the collecting chamber so that the atmosphere in the collecting chamber is maintained at a negative pressure with suction force by the hopper 15, but the hopper ( 15) If the suction amount is excessive, the inflow amount of air introduced by the inlet port 16 is increased to maintain the atmosphere in the collecting chamber at an appropriate negative pressure, and when the suction amount by the hopper 15 is too small, the inlet port ( Due to the small inflow of air introduced by 16), the vortex phenomenon occurs in the atmosphere inside the collecting chamber. This is to maintain the proper negative pressure. Therefore, the inorganic fibers conveyed by the air are laminated on the net 6 with a uniform thickness by an appropriate suction force of the hopper 15.

In addition, unlike fibers (8), the fibers falling down due to non-uniformity of conveying air pressure among the fibers transported by pneumatic pressure are light in weight, so these fibers are introduced through the inlet 16 and the net 6 It is to be transported to the target distance in the air flow rising through, therefore, there is also an effect that the soluble fibers can be unnecessarily dropped into the storage chamber (9) is not lost.

In this way, the inorganic fiber of a certain thickness is always stacked on the net 6 while being transported in the collecting chamber 17, and the inorganic fiber layer 13 is transferred to the inner wall of the collecting chamber in the process of being transferred. Since the inorganic fiber layer 13 is in a state of high adhesion due to the fiber surface treatment agent, a part of the inorganic fiber layer 13 is attached to the inner wall of the collecting chamber, and thus the attached inorganic fibers and the inorganic fibers of the inorganic fiber layer 13 are adhered to each other. Since the cross section of the inorganic fiber layer 13 changes into a trapezoid, it is to be cut off and discarded.

In the present invention, in order to prevent this, the lamellar conveyor 18 is disposed on both inner wall surfaces of the collecting chamber, but the inorganic fiber layer 13 is transported by rotating the lamellar conveyor 18 at the same feed rate as the inorganic fiber layer 13 being transferred. Both sides of the cross section were kept at a right angle so that the cut-out area during cutting work to obtain the finished product was minimized.

Therefore, the inorganic fiber layer 13 conveyed through such a process is a desirable focusing state because the shatter is removed and the thickness and density of each part are uniform and the shape of both cross sections is almost right angle.

In addition, in the present invention, the net 6 for moving the inorganic fiber layer 13 can be cleaned during the process operation, thereby eliminating the need to set up a process for cleaning the net 6 or replacing it with a new one, thereby obtaining continuity of work. It became.

That is, the injection pipe 19 for injecting a high-pressure cleaning liquid toward the net 6 is provided on one side of the net 6 to firstly separate foreign substances or fibers from the net 6 and to remove the brush 20 and the plurality of pieces. By passing through the two brush rollers (21) and (22) to remove the adhered inorganic fibers, etc., so that the net (6) is always kept clean during the process operation, and therefore the process for cleaning the net (6) There is no need to stop and the suction efficiency of the hopper 15 is not lowered due to the closure or shrinkage of the substance or the like in the net of the net 6.

In this way, the present invention is to maintain the density and thickness of the concentrated inorganic fiber layer uniformly and to completely remove the shaping to produce a product of excellent quality, it is possible to maintain the continuity of the work to improve the productivity.

Claims (4)

In the known ones, in which the natural ore and slag slag are melted and fiberized by the fiber manufacturer, and the air is directed toward the front surface, the measurement furnace is provided at the side surface of the surface chamber exit to reduce the thickness deviation of the fiber being collected A method for collecting thermosoftening fibers by minimizing thickness deviation by adjusting the suction force of a suction hopper installed under a conveying net detected by detecting the thickness. In melting the natural ore and slag slag and fiberizing it from a fiber manufacturing body such as a rotary wheel (1), a damper for installing a net (6) to be transported to the collecting portion and adjusting the suction force below it ( 14 ') is installed, the hopper 15 is installed on both sides of the net (6), the lamellar conveyor 18 is rotated at the same speed as the net (6) to be transported, and the inorganic fiber layer collected on the net (6) A collecting device for thermosoftening fibers, which is provided with a plurality of measuring rollers (12) at the exit side of the collecting chamber (17) to reduce the collecting deviation of (13). The surface of the thermosoftening fiber according to claim 2, wherein the rotational roller (7) is installed below the position of 1-3m in front of the fiber manufacturing body and the peeling degree (10) is fixed to be in close contact with the main surface thereof. Device. The surface of the thermosoftening fiber according to claim 2, wherein the cleaning liquid spray pipe (19) and the brush (20) and the plurality of brush rollers (21) and (22) are provided below the rotating net (6). Device.

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