JPS62231035A - Opening and feeding apparatus - Google Patents

Abstract

PURPOSE:To provide the titled apparatus having low failure frequency and excellent operation efficiency, by independently rotating a primary picker and a secondary picker and furnishing the secondary picker with a speed regulation member. CONSTITUTION:A primary picker 12 and a screw feeder 15 in a first fiber- opening chamber 9 are rotated with a driving motor 19. A secondary picker 24 in a second fiber-opening chamber 23 is rotated with a driving motor 43 and the rotational speed is regulated by a speed regulation member 51. The blocking of the feeding port 29 of the second fiber-opening chamber, the transfer path 32 and the inlet port 31 of the fiber-feeding chamber 30 can be prevented even in the case of charging a large amount of inorganic fiber to a hopper 5 by rotating the secondary picker at a high rotational speed.

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a defibration feeding device, and more specifically, to a defibration feeding device, which is used to strengthen fire resistance and prevent condensation during the construction of mid-to-high-rise buildings such as buildings. This invention relates to an apparatus for defibrating inorganic fibers such as rock wool, glass wool, and carbon wool that are sprayed onto steel frames.

(Conventional technology) Generally, when constructing mid-to-high-rise buildings such as buildings, chemical fibers,
In particular, fire resistance is strengthened by defibrating inorganic fibers such as asbestos and spraying them together with atomized cement milk onto the steel frame.

To perform the above-described defibration, a defibration apparatus shown in FIG. 8 is used. To briefly describe this defibration device, the hopper 70
The inorganic fibers such as asbestos introduced from the asbestos are stirred and coarsely dissolved by rotating the coarse binder 72 in the first fibrillation chamber 71. After that, the inorganic fibers are sent to the second defibrating chamber 74 by a screw feeder 73 provided at the lower part of the first defibrating chamber 71,
The fibers are defibrated in a dense binder 75 rotating in the second defibrating chamber 74 . After the dense defibration, the inorganic fibers are sent into a conveyor handle 76 disposed below the second defibrator chamber 74, and conveyed downward by a rotary valve 77 within the conveyor handle 76. Then, the inorganic fibers are forced into the discharge hole 79 by the pressure of the air sent from the blower through the air supply hole 78 into the sending palm 76. Then, the inorganic fibers are discharged from the discharge tube 8 connected to the discharge hole 79.
The water passes through the air, is sent to a jet nozzle, and is sprayed onto steel frames, etc. along with cement milk.

However, the defibrating capacity of both pickers 72, 75 is determined by these rotational speeds. Further, even if the coarse picker 72 is rotated at a low speed, coarse fibrillation can be performed, but the fine picker 75 that performs fine fibrillation must be rotated at a high speed.

In the above-described feeding device, the coarse picker 72 and the fine picker 75 are rotated synchronously by the motor 81 via the screw feeder 73, so the coarse picker 72 and the fine picker 75 rotate at the same speed. Therefore, if the amount of inorganic fibers fed from the hopper 70 is made to correspond to the defibrating capacity of the coarse picker 72, the amount of inorganic fibers sent into the second defibrating chamber 74 will be reduced to the fine picker 75.
exceeds the defibrating ability of For this reason, the inorganic fibers become clogged in the second defibrating chamber 74, blocking the movement of the dense picker 75, or are not defibrated sufficiently densely and are sent into the sending inspection hand 76, blocking the fins of the rotary valve 77. This may cause a malfunction.

Furthermore, if the amount of inorganic fibers fed from the hopper 70 is made to correspond to the defibrating capacity of the fine picker 75, the amount of inorganic fibers to be processed by the coarse picker 72 will be extremely small. Therefore, problems remain in terms of work efficiency.

(Problems to be Solved by the Invention) As described above, this invention solves the problem that inorganic fibers may become clogged in the second fiber feeding chamber and block the movement of the picker, or may not be defibrated sufficiently densely and fed into the wire feeding chamber. The aim is to solve the problem that the rotary valve's fins can be blocked by the rotary valve, causing malfunctions and reducing work efficiency. An object of the present invention is to provide a defibration feeding device with excellent work efficiency.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, this invention
A primary picker 12 for coarsely disintegrating the inorganic fibers F is rotatably provided in the first disintegration chamber 9 into which inorganic fibers F such as rock wool are introduced. A secondary picker 24 for densely defibrating the inorganic fibers F is rotatably provided in the second defibrating chamber 23 into which the inorganic fibers F are sent, and furthermore, the secondary picker 12 and the secondary picker 24 are installed. Providing drive sources 19.43 for rotating each independently,
At least the secondary picker 24 is provided with a speed adjusting member 51 for adjusting its rotational speed.

(Function) By employing the above-described means, the present invention can make the rotational speed of the secondary hysteresis force 24 faster than the rotational speed of the primary force 7 and 12, and also allows the speed adjustment member 51 to be operated. The rotation speed of the secondary binker 24 can be changed by this.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 to 7.

Fig. 2 shows the machine base l of the defibrating and feeding device according to the present invention, and the air inlet I provided at the bottom of the machine is equipped with a blower 2 (
An air supply vibrator 2a extending from FIG. 7) is connected.

Note that the upper surface of the air supply port (2) has a tapered shape that becomes higher in the air traveling direction.

In addition, a hopper 5 that protrudes upward is provided at the outer edge of the opening 4 on the top surface of the casing 3 of the machine l, and the bottom of the hopper 5 is surrounded by both side walls 6, front and rear walls 7, 8, and bottom wall 11. A first defibration chamber 9 is provided. In addition, these walls 6,
7, 8. A drive chamber 10 is provided between 11 and the inner wall of the casing 3.
is provided.

As shown in FIGS. 3 and 6, a mounting table P is foldably attached to the upper part of one side edge of the machine stand 1. When the feeding device is in operation, this mounting table P is held in an extended state as shown in FIG. 3, and the inorganic fibers F such as rock wool, which are fed into the hopper 5, are placed thereon in the form of a lump.

As shown in Figure 2, 1. In the upper part of the first defibrating chamber 9, a primary pincer 12 is rotatably installed between the front and rear walls 7, 8. As shown in FIG.
It is composed of a plurality of square column-shaped stirring blades 14 arranged in rows so as to protrude alternately from the top to the bottom and in the horizontal direction. Note that when this -next picker 12 rotates, the hopper 5
The inorganic fibers F introduced into the first defibrating chamber 9 are roughly defibrated.

As shown in FIG. 2, a support shaft S is rotatably supported between the upper part of the rear wall of the frame W and the lower part of the front wall 8. As shown in FIG. A screw feeder 15 is rotatably supported on the support shaft S by a pole bearing B at a portion corresponding to the first defibrating chamber 9.

The screw feeder 15 includes a cylindrical rotating shaft 16 and a spiral feeding blade 17 provided on the outer periphery of the rotating shaft 16.

Note that the primary picker 12 and screw feeder 15
The front ends of the rotation axes 13 , 16 each project from the front partition wall 6 into the drive chamber 10 .

A first drive motor 19 is provided at the lower part of the drive chamber 10, and the drive pulley 19a and the driven pulley 1 of the rotating shaft 16 are connected to each other.
A bell) 21a is hung between it and 6a. Also,
Driven pulley 16a and driven pulley 13a at the outer end of rotating shaft 13
A heald 21b is hung between. Therefore, when the first drive motor 19 is rotationally driven, the -th binker 12
And the screw feeder 15 is rotationally driven.

A frame body W is erected behind the first defibrating chamber 9, and a second defibrating chamber 23 and a sending palm 30 are installed at the upper and lower parts of the frame W, respectively.
is provided. The first and second defibrating chambers 9 and 23 are communicated with each other through communication holes 9a and 23a provided in the first and second defibrating chambers 9 and 23, respectively. Further, the rear end portion of the screw feeder 15 faces into the second defibrating chamber 23 through the communication hole 9a. A secondary picker 24 is fixed to a portion of the support shaft S corresponding to the second defibrating chamber 23,
Its tip is loosely inserted into the rear end of the rotating shaft 16. In addition,
The screw feeder 15 feeds the inorganic fibers F falling from the primary picker 12 into the second defibrating chamber 23 by the action of the feeding blades 17 during rotation.

The secondary picker 24 has a plurality of stirring blades 26 arranged in rows on the surface of a cylindrical rotating shaft 25 so as to protrude alternately in the vertical and horizontal directions.

In this secondary picker 24, the stirring blades fI26 are set to be shorter than the stirring blades 14 of the primary picker 15, and the pitch between the stirring blades 26 is also narrower.
The stirring blades 114 of No. 4 are arranged so that the pitch is dense at the front end of the rotating shaft 25, and the pitch is coarse at the rear end.

This secondary picker 24 is the second picker in the screw feeder 15.
The inorganic fibers F conveyed into the defibrating chamber 23 are stirred to be finely defibrated.

As shown in FIG. 1, the second defibrating chamber 23 has a substantially circular cross section, and a see-through opening 27 closed with a transparent material is provided in the upper part of the second defibrating chamber 23, as shown in FIG. There is. A see-through window 3a is also provided in the casing 3 at a position corresponding to the see-through port 27, so that the state inside the second defibrating chamber 23 can be confirmed through the see-through port 27 and the see-through window 3a.

Further, an air recovery hole 28 is transparently provided in the upper part of the second defibrating chamber 23 adjacent to the see-through port 27, and an air recovery hole 28 protrudes outward from the outer peripheral edge of the outer peripheral wall of the second defibrating chamber 23. For mounting, a tube 28a is formed. Note that a delivery port 29 is formed in the lower part of the second defibration chamber 23 .

Further, a feeding probe 30 having a circular cross section is provided below the second defibrating chamber 23 , and an inlet 31 transparently provided at the upper part of the inlet 30 connects to the outlet 20 of the second defibrating chamber 23 through a passageway 32 . is communicated with.

In addition, the fiber transfer for sending the inorganic fibers F from the second defibration chamber 23 to the sending palm 30 is performed by the outlet 29 of the second fiber chamber 23, the inlet 31 of the sending palm 30, and the passageway 32. A section is formed.

In addition, near the inlet 31 on the upper part of the inspection palm 30,
An air feed hole 33 is provided through the air feed hole 33, and a tube 3 is attached to the outer peripheral wall of the air feed hole 30 and extends outward from the outer peripheral edge of the air feed hole 33.
3a is formed. In this installation, the connecting pipe 34 attached to the tube 33a is attached to the tube 2.
8a.

The sending palm 30 is formed to have a larger diameter than the second defibrating chamber 23, and a rotary valve 35 is provided inside thereof. The rotary valve 35 is composed of a rotating shaft 36 extending longitudinally through the center of the palm-carrying palm 30, and a plurality of fins 37 extending radially from the rotating shaft 36. These fins 37 are constructed by fixing a pair of fastening plates 39 made of a hard material to both sides of an elastic plate 38 made of rubber.
The tip of the elastic plate 38 protruding from between the retaining plates 39 has a length such that it comes into contact with the inner circumferential wall of the sending palm 30 and bends.

This rotary valve 35 sends the inorganic fibers F flowing into the inlet 31 downward through fins 37.

Further, a deposition groove 40 is recessed in the lower inner circumferential wall of the sending palm 30 over the entire length direction, and the rear end is connected to the rotary valve 3.
5 and extends obliquely so as to face the rotation direction of 5. That is, the deposition groove 40 is connected to the fin 37 of the rotary valve 35.
When the rotary valve 35 rotates, the fin 37 approaches the rear end of the deposition groove 40 and then gradually approaches the tip.

In particular, as shown in FIG. 5, the depositing groove 4o is connected at its front end to the air supply port 2 and at its rear end to the discharge port 0, so that air can flow therethrough. Further, the bottom of the bank 4'tlR4o is almost completely closed in the length direction by a nozzle member 41 having a U-shaped cross section, and a nozzle air supply path 42 is formed inside the nozzle member 41. This nozzle member 41 has a tapered shape with a small cross-sectional area at the rear end, and the rear end opening 41a has a discharge port 0.
They are facing each other with some distance between them. Therefore, as the airflow passing through the nozzle air supply path 42 moves backward, the pressure increases, and the airflow is ejected from the rear end opening 41a and enters the discharge port 0 together with the non-aluminum fibers F.

The continuously variable speed pulley 25a of the rear end protrusion of the support shaft S includes:
A second drive motor 43 fixed to the rear upper part of the drive chamber 10 is driven and connected by a bell 25b. Therefore, when the second drive motor 43 starts, the secondary picker 24 rotates. Further, a third drive motor 45 is provided at the lower rear of the drive chamber 10, and is connected to the rear end portion of the rotating shaft 35 of the rotary valve 34 protruding from the rear wall 46 of the palm sending palm 30 via an interlocking mechanism. .

Note that the three drive motors 19°43.
45 are each equipped with a speed reducer, and the third motor 45 has a fixed speed reduction ratio. On the other hand, the reduction ratio of the first drive motor 19 can be changed by manually operating the transmission. Therefore, −
The rotation speed of the next picker 12 can be changed.

Further, the reduction ratio of the second drive motor 43 is also switchable. That is, the adjustment knob 51 of the continuously variable transmission boolean IJ 25a protrudes outward from the rear of the casing 3, and by manually rotating the adjustment knob 51, the reduction ratio of the second drive motor 43 is switched. 24 rotation speeds can be controlled. and,
This control state is displayed on a meter 52 provided on the adjustment knob 51.

Further, the upper surface of the discharge port 0 is formed in a tapered shape that becomes lower in the direction of air travel, and as shown in FIG. It extends to 57. A conveying tube 56 extending from a mortar pump 55 provided separately from the feeding device is connected to the jet nozzle 57.

Now, the operation of the defibrating and feeding device configured as described above will be explained below.

First, the blower 2 is operated to send air to the air supply port I of the machine base 1. At the same time, the three drive motors 19.4 of machine base 1
3. Start the 45 and start the primary picker 12 of the first defibration chamber 9.
Then, the screw feeder 15, the secondary vicker 24 of the second defibrating chamber 23, and the rotary valve 35 of the sending palm 30 are rotated. Then, the inorganic fibers F on the mounting table P are torn into appropriate sizes and continuously fed into the first defibrating chamber 9 from the hopper 5 of the machine table 1.

Note that, as described above, since the air inlet I of the machine base 1 has a tapered shape, the air does not form a whirlpool inside the air inlet I and is efficiently sent.

In the first defibration chamber 9, the inorganic fiber F is
After being stirred by the stirring blade 14 and coarsely defibrated, it is pushed down by the following inorganic fibers F. Then, the inorganic fibers F reach the screw feeder 15, are conveyed to the rear inside the first defibrating chamber 9 along the feeding blades 17, and are passed through the communication holes 9a,
It reaches the inside of the second defibrating chamber 23 via 23a.

In the second defibrating chamber 23, the inorganic fibers F are sent to the rear of the screw feeder 15, and the inorganic fibers F are fed to the rear of the screw feeder 15, and
The fibers are stirred by the stirring blades 26 of No. 4 to be finely defibrated.

Thereafter, in the second defibrating chamber 23, the inorganic fibers F are blown against the inner circumferential wall surface by the centrifugal force generated by the rotation of the stirring blade 26 of the secondary vicker 24, and are blown downward along the inner circumferential wall surface. Moving. Then, the inorganic fiber F is stored in the second defibrating chamber 2.
It reaches the passageway 32 through the outlet 29 of No. 3, and further advances into the sending palm 30 via the inlet 31.

After the inorganic fiber F enters the inspection hand 30, the inorganic fiber F enters the inlet 31.
Directly below the fins 37 of the rotary valve 35, it is conveyed in the direction of rotation.

As mentioned above, the fins 37 of the rotary valve 35 rotate while the elastic plate 38 is in sliding contact with the inner circumferential wall of the hand-carrying palm 30, so the adjacent fins 37 rotate in a sealed state.
Above the deposition groove 40, the lower side is open.

Therefore, the inorganic fibers F move together with the fins 37 without deviating from between the fins 37, and the fins 37 move into the deposition grooves 4.
When reaching above 0, the inorganic fibers F descend into the deposition groove 40 and are deposited.

Since the deposition groove 40 has an oblique shape such that its rear end faces the rotational direction of the rotary valve 35, the inorganic fibers F conveyed by the fins 37 are deposited gradually from the rear end to the front end of the a40. Fall.

The inorganic fibers F deposited at the rear end portion of the deposition groove 40 are forced into the discharge port 0 by air jetted from the rear opening 41a of the nozzle air supply path 42. Then, the inorganic fibers F deposited in the front of the deposition groove 40 are sent rearward by the air pressure sent into the deposition groove 40 from the air supply port 4, and similarly, the inorganic fibers F deposited at the front of the deposition groove 40 are sent rearward from the rear opening 41a of the nozzle member 41 to the discharge port 0. Forced inside. As described above, since the nozzle member 41 has a tapered shape with a small cross-sectional area at the rear end, the pressure of the air ejected from the rear opening 41 is extremely large, and the inorganic fibers sent from the front of the deposition groove 40 are F is ejected into the discharge port O at a high speed.

By repeating the above operations, the inorganic fibers F are continuously fed into the exhaust tube 56. Therefore, a large amount of inorganic fibers F will not be deposited all over the deposition groove 40. Therefore, the flow resistance during air flow in the deposition groove 40 is extremely small, and the transport efficiency of the inorganic fibers F is high. Also, for the same reason, inorganic fiber F
The deposition groove 40 will not become clogged due to excessive deposition of. In addition, since the discharge port O of the machine stand 1 has a tapered shape, when air passes through the discharge port O, it does not circulate in a whirlpool shape.
It is efficiently sent to the exhaust tube 53.

When the fin 37 of the rotary valve 35 is located above the deposition groove 40 in the sending inspection palm 30, the deposition groove 40
The air inside enters between adjacent fins 37. and,
This incoming air moves upward as the fins 37 move, and when the fins 37 pass through the air feed holes 33, the incoming air flows into the connecting vibe 34 from the air feed holes 33. The incoming air then rises within the connecting vibrator 34 and flows into the second defibrating chamber 23 through the air recovery hole 28. After that, the incoming air flows into the inorganic fibers F floating in the second defibrating chamber 23.
At the same time, it is returned to the sending palm 30 through the outlet 29, the passageway 32, and the inlet 31. Therefore, the efficiency of transporting the inorganic fibers F from the second defibrating chamber 23 to the sending palm 30 is extremely high, and the work efficiency is improved.

On the other hand, the inorganic fibers F pumped into the exhaust tube 53 advance through the exhaust tube 53 by air pressure, reach the jet nozzle 57, merge with the cement milk sent from the mortar pump 55, and then are sprayed onto steel frames, etc. It will be done.

In this defibration feeding device, the primary picker 12 in the first defibration chamber 9 and the screw feeder 1 are moved by the first drive motor 19.
5 are interlocked so that the speed can be adjusted, and furthermore, the secondary and lug 24 are rotated by the second drive motor 43 so that the speed can be adjusted. Therefore, the rotation speeds of the primary picker 12 and the secondary binker 24 can be adjusted separately depending on the amount of inorganic fibers F to be defibrated.

That is, when a large amount of inorganic fibers F are continuously fed into the hopper 5, the deceleration ratio of the first drive motor 19 is switched according to the amount of inorganic fibers F, and the rotational speed of the -order picker 12 is adjusted. . Thereafter, the inorganic fibers F treated in the secondary picker 12 are sent to the secondary picker 24 via the screw feeder 15. At this time, if the secondary picker 24 is rotated at high speed, a large amount of inorganic fiber F can be continuously supplied.
is finely defibrated. Therefore, the inorganic fibers F do not descend in an undefibrated state, and the inorganic fibers F do not descend to the outlet port 2 of the second defibrating chamber 23.
9. The passageway 32 and the inlet 31 of the sent palm 30 are not clogged. For this reason, even if a large amount of inorganic fibers F are charged into the hopper 5, not only the first defibrating chamber 9- but also the second defibrating chamber 2
The defibration work is reliably carried out within 3, and the defibrated inorganic fibers F are smoothly sent into the transmitting inspector 30.

In addition, since the state inside the second defibrating chamber 23 can be confirmed through the transparent port 27, the adjustment knob 51 can be operated to adjust the secondary picker 24 according to the defibrating state of the inorganic fibers F in the second defibrating chamber 23.
The rotation speed of can be changed. Therefore, the secondary picker 24 is switched to an appropriate rotational speed at any time, and efficient defibration work is performed without clogging the second defibration chamber 23.

Further, in this defibration and feeding device, surplus air in the palm to be examined 30 is sent into the second defibration chamber 23 via the connecting vibrator 34, and the surplus air is further circulated into the palm to be examined 30. Therefore, the air in the sending palm 30 does not rise from the inlet 31 and flow back into the second defibrating chamber 23 . Therefore, the transport of the inorganic fibers F from the second defibration chamber 23 to the sent palm 30 is not hindered by the air in the sent palm 30.

In addition, when surplus air flows from the second defibration chamber 23 into the sending palm 30, the defibrated inorganic fibers F are also transported, so the transport efficiency of the inorganic fibers F is high and the work efficiency is improved. .

Furthermore, since the configuration is such that the surplus air circulates between the palm feeding inspection 30 and the second defibration chamber 23, there is no need to discharge the surplus air in the feeding inspection palm 30 into the casing 3. Therefore, the inspector 3
Dust and the like inside the machine 0 will not be discharged into the casing 3, and the inside of the machine base 1 will be kept clean, and dust and the like will not adhere to the drive mechanism and cause a malfunction. Further, it is also avoided that the defibrated inorganic fibers F are discharged outside the sending palm 30 and are wasted.

Effects of the Invention As described in detail above, a primary picker for roughly disintegrating the inorganic fibers F is introduced into the first defibrating chamber 9 into which chemical fibers, especially inorganic fibers F such as rock wool, are fed from the hopper 5. 12 is rotatably provided, and in a second defibrating chamber 23 to which the inorganic fibers F are sent from the first defibrating chamber 9, a secondary picker 24 for densely defibrating the inorganic fibers F is rotatably provided. Furthermore, a drive source 19.43 is provided for independently rotating the secondary binker 12 and the secondary picker 24 by degrees Celsius, and at least the secondary picker 24 is provided with a speed adjustment device for adjusting the rotational speed thereof. By providing the member 51, failures are extremely rare and furthermore, work efficiency is improved.

[Brief explanation of drawings]

FIG. 1 is a front sectional view showing the entire defibrating and feeding device according to the present invention, FIG. 2 is a side sectional view showing the second defibrating chamber and wire feeding chamber, and FIG. 3 is a side view showing the machine base. Figure 4 is an enlarged perspective view showing the arrangement of both bins and the screw feeder, Figure 5 (a)
and (b) are a partially cutaway enlarged perspective view and cross-sectional view showing the deposition groove and rotary valve in the suitable chamber, respectively, Fig. 6 is a side view showing the drive system of the secondary binka and screw feeder, and Fig. 7 is the inorganic fiber. FIG. 8 is a front sectional view showing a conventional defibration feeding device. Hopper 5, first waste chamber 9, secondary picker 12, first drive motor 19, second defibration chamber 23, secondary picker 24, second drive motor 43 (this second drive motor 43 is the first drive motor 19), an adjustment knob 51° as a rotational speed adjustment member Patent applicant Dai-Engineering Co., Ltd. Agent
Patent Attorney On 1) Hiroshi Nobuo Figure 6 Drawing No. 5 55 Coj

Claims (1)

[Claims] 1. The chemical fibers (F) are coarsely disintegrated into the first defibration chamber (9) into which the chemical fibers (F), especially inorganic fibers such as rock wool, are fed from the hopper (5). A primary picker (12) for fiberizing is rotatably provided, and a second defibrating chamber (23) to which the chemical fibers (F) are sent from the first defibrating chamber (9) is provided with ) in a defibration feeding device rotatably provided with a secondary picker (24) for densely defibrating the primary picker (12) and the secondary picker (24). A defibrating and feeding device characterized in that a source (19, 43) is provided, and at least a secondary picker (24) is provided with a speed adjustment member (51) for adjusting the rotation speed of the secondary picker (24). 2. The driving source is a first drive source that rotates the primary picker (12).
The defibration feeding device according to claim 1, characterized in that it comprises a drive motor (19) and a second drive motor (43) for rotating the secondary picker (24). 3. The rotation adjustment member is connected to the rotation shaft (
Claim 1, characterized in that it is an adjustment knob (51) attached to a support shaft (S) tightly fitted in
The defibration feeding device described in Section 1. 4. The second defibration chamber (23) has a transparent opening (2
7) is provided transparently, The defibrating and feeding device according to claim 1.