JPH0426423Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an improvement of a rock wool/asbestos crushing and discharging device.

<Conventional technology> A rock wool/asbestos crushing and discharging device is used for rock wool/asbestos for construction.
This device finely crushes asbestos and discharges it with high-pressure air.The discharged rock wool and asbestos are mixed with cement milk at a certain ratio and sprayed onto the wall of the building from a spray nozzle. It forms the

This type of rock wool/asbestos crushing and discharging device generally includes an input port for inputting the rock wool/asbestos, a rotating body that drops the rock wool/asbestos in the input port, and a rotating body disposed at the bottom of the input port. It consists of a screw conveyor, a crushing chamber in which the rock wool and asbestos carried by the screw conveyor are crushed into small powders and granules by a crushing rotating body, and a discharge port located at the bottom of the crushing chamber.

<Problems that the invention seeks to solve> However, with conventional crushing and discharging devices, it is often difficult to maintain a balance between the conveyance volume of the squirrel conveyor and the throughput of the crushing chamber. When I reached the top, the following problem occurred.

(b) A large amount of rock wool/asbestos is thrown into the grinding chamber, clogging the grinding chamber and resulting in a high density of rock wool/asbestos.

(b) Since the grinding chamber becomes clogged, the rotational torque of the grinding rotating body increases.

(c) Because the highly-densified rock wool/asbestos is forcibly crushed using a high-torque crushing rotating body, the crushing rotating body and the walls of the crushing chamber are subject to severe wear and tear. The crushing blades of the crushing rotating body wear out after about a month and must be replaced.

(d) Rock wool and asbestos become highly dense and are forced to grind, so the amount of grinding is inconsistent. As a result, the mixing ratio with cement milk is not constant, making it impossible to form a good wall surface.

(e) Similarly, since the size of the crushed powder/grain is not constant, it is not possible to form a wall with a uniform structure.

<Means for Solving the Problems> Therefore, the present invention provides a crushing and discharging device equipped with a reverse feeding means 6 for returning the surplus rock wool/asbestos accumulated in the crushing chamber 3 to the input port. This solves the above problems.

<Function> In this crushing and discharging device, excess rock wool and asbestos that accumulate in the crushing chamber are returned to the input port by the return means. Therefore, even if the input amount exceeds the processing capacity of the crushing chamber, the excess rock wool/asbestos is returned to the input port, so that it does not accumulate in the crushing chamber.

<Example> An example of the present invention will be described below based on the drawings.

Fig. 1 is a front view of a rock wool/asbestos crushing and discharging device according to an embodiment, Fig. 2 is a plan view of the same, Fig. 3 is a left side view of the same, Fig. 4 is a right side view of the same, and Fig. 5 Figures 8 through 8 show details of the device.

This crushing discharger has a rock wool/asbestos input port 1,
A squirting conveyor 2 arranged at the bottom, a crushing chamber 3 for crushing the rock wool/asbestos carried by the squishing conveyor 2, a pressurizing chamber 4 disposed at the bottom of the crushing chamber, and a tip of the pressurizing chamber 4. and a discharge port 5 arranged at. And, between the crushing chamber 3 and the input port 1, there is a reverse screw conveyor 6 as a reverse conveyance means for returning excess rock wool/asbestos accumulated in the crushing chamber 3 to the input port 1. It is provided.

The input port 1 has an inverted triangular shape in side view with a large open top, and two rotating bodies 7, 7 are mounted on the top.
has. This rotating body has a rotating shaft 71 with a plurality of bent rod-like bodies 72 protruding in the radial direction. A single rotating body 8 is provided at the center of the input port 1. This rotating body 8 has blades 82 attached to a rotating shaft 81 that extend in the longitudinal direction thereof.

These rotating bodies 7, 7, and 8 roughly crush the rock wool/asbestos lumps put into the insertion port and drop them into the lower part of the insertion port.

Skew conveyor 2 placed at the bottom of the input port
, a spiral blade 22 is attached to a rotating shaft 21, and the rotating shaft 21 is fixed to one end of the input port 1 and the other end of the crushing chamber 3, and the blades 22 are used to prevent the crushing from the entire length of the input port 1. It reaches a part of room 3.

As shown in FIG. 5, a crushing rotating body 31 is disposed in the crushing chamber 3, and crushes the rock wool/asbestos carried by the squirrel conveyor 2. The crushing rotating body 31 includes a rotating shaft 32 and a plurality of crushing rods 33 attached in the radial direction of the rotating shaft 32. Rotating axis 3
2 is a double shaft through which the rotating shaft 21 of the screw conveyor is passed, and rotates at high speed.
A large number of crushing rods 33 are arranged at the base near the input port 1, and it is desirable to reduce the number at the tip. Further, it is desirable that a crushing rod 34 be provided protruding from the inner wall of the crushing chamber 3 as well.

A rock wool/asbestos fall hole 35 is opened at the bottom of the tip of the crushing chamber 3, and a damper 36 is arranged to adjust the size of the hole (see FIG. 6). This damper is cut diagonally,
The openings are arranged so that they become larger toward the tip of the grinding chamber.

Therefore, the rock wool/asbestos carried into the crushing chamber 3 is crushed by a large number of crushing rods 33, and is dropped into the pressure feeding chamber 4 through the drop hole 35 in a well crushed state.

A rotary measuring body 41 having seven blades 42 is provided in the pressure feeding chamber 4, and rotates equiangularly in the direction of the arrow (see FIG. 7). The rock wool/asbestos dropped from the drop hole 35 is carried downward by each blade 42. The tip of the air discharge pipe 44 of the blower 43 is exposed at the bottom of the pressure-feeding chamber 4.
Asbestos is forced into the high-pressure air and discharged from the discharge port 5.

As described above, the rock wool/asbestos inputted from the input port 1 is crushed in the crushing chamber 3 and discharged from the discharge port 5 via the pressure feeding chamber 4. However, the amount of rock wool/asbestos transported from the input port 1 to the crushing chamber 3 is
In some cases, the amount of rock wool and asbestos accumulated in the crushing chamber 3 exceeds the throughput. Therefore, the present invention is
The following reverse transport means are provided.

That is, as shown in FIGS. 1, 2, 5, and 8, a reverse screw conveyor 6 connecting the crushing chamber 3 and the input port 1 is arranged between the two. This will be explained in detail with reference to FIG. 8. An escape hole 61 is formed near the top of the tip of the crushing chamber 3, and excess rock wool and asbestos are removed from the back-feeding device screw chamber 6.
I'll let you escape to 2. The reverse screw conveyor 6 has a screw blade 64 attached to the rotating shaft 81 of the rotating body 8, and returns the rock wool/asbestos released from the escape hole 61 to the input port from the return port 63. It is. Then, the returned rock wool/asbestos is immediately dropped into the lower part of the input port by the blades 82 of the rotating body 8. This is because the rock wool/asbestos that is being pumped has already been crushed and hits the other rotating bodies 7, 7.
This is to avoid being crushed. Incidentally, for the same purpose, it is desirable that the return port 63 be disposed below the other rotating bodies 7, 7.

Next, the driving means of this crushing discharger will be explained based on FIGS. 1 to 4. Two electric motors, a first electric motor 91 and a second electric motor 92, are used as drive sources. Both rotating gears 91a and pulleys 92a are arranged on the left side.

On the left side, the shaft end 4a of the rotary measuring body 41 of the pressure feeding chamber 4, and the shaft end 3 of the rotary shaft body 31 for crushing of the crushing chamber 3 are shown.
a, shaft end 2a of shaft body 21 of squeezing conveyor 2;
The shaft ends 7a, 7a of the rotating bodies 7, 7, and the shaft end 8 of the shaft body 81 of the other rotating bodies 8 and the reverse feed screw conveyor 6
A is placed. The rotating gear 91a of the first electric motor 91 and the shaft end 4a are interlocked by a chain 93, and the shaft end 4a and the shaft end 2a are interlocked by another chain 94. The pulley 92a of the second electric motor 92 and the shaft end 3a are interlocked by a belt 95.

Next, on the right side, there is a shaft 2 of the screw conveyor 2.
1 shaft end 2b, rotating bodies 7, 7 shaft ends 7b, 7b,
and the shaft body 8 of the rotating body 8 and reverse feed screw conveyor 6
1 shaft end 8b is arranged. The shaft end 2b on the right side of the shaft body 21 of the squirrel conveyor 2 driven by the chain 94 on the left side and the other shaft ends 7b, 7b, 8b are interlocked with the chain 96. Next, according to Figures 9 and 10,
Another embodiment will be described.

In this embodiment, an extension portion 101 is provided in the input port 1, and the input port 1 is extended to the vicinity of the relief hole 61 connecting the crushing chamber 3 and the reverse feed skew chamber 62, and its opening is enlarged. Therefore, only the proximal end of the reverse feed screw is disposed within the reverse feed screw chamber 62, but the rest of the reverse feed screw is disposed within the extension portion 101 of the input port.
is placed at the bottom of the.

Note that, since the bottom slope 102 of the extended portion 101 of the input port is shallow, the rod-shaped body 72 is not provided on the extended portion 101 of the rotary body 7 on the right side of the drawing. However, it is desirable to provide a rod-shaped body also in this part, and furthermore, the rotating body 7 of the extension part 101
In this case, instead of a rod-shaped body, a screw blade for reverse feeding may be formed on the rotation shaft 71.

In the above embodiments, a screw conveyor was used as the reverse transport means, but this may be changed to other transport means such as a spring feeder. moreover,
Grinding chamber 3 and input port 1 without active transfer means
The rock wool and asbestos may be returned from the crushing chamber 3 to the input port 1 by the pressure inside the crushing chamber or by natural falling.

<Effects of the Invention> As described above, the present invention includes a return means for returning excess rock wool/asbestos accumulated in the crushing chamber 3 to the input port 1. Therefore, even if the amount of insertion exceeds the throughput of the crushing chamber 3, the crushing chamber will not be clogged with rock wool or asbestos. Therefore, the following effects are achieved.

(b) Excess rock wool and asbestos in the crushing chamber are returned to the input port and do not clog, so the rock wool and asbestos in the crushing chamber are
Asbestos density is always kept good.

(b) Since the density inside the grinding chamber is maintained well, an increase in the rotational torque of the rotating body for grinding can be prevented.

(c) Since pulverization is performed at a good density, the load on the pulverizing rotor does not increase and its wear does not become severe.

(d) Since pulverization is performed at a good density, the amount of pulverization is constant, the mixing ratio with cement milk is also constant, and a good wall surface can be formed.

(e) Similarly, the size of the crushed powder/grain is constant,
A wall surface with a uniform structure can be formed. Therefore, the present invention has been able to provide a rock wool/asbestos crushing and discharging device that can perform good crushing and discharging.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a front view of a crushing and discharging device of one embodiment, Fig. 2 is a plan view of the same, Fig. 3 is a left side view of the same, and Fig. 4 is a right side view of the same. figure,
Figure 5 is an enlarged front view of the inside of the crushing chamber, Figure 6 is an explanatory diagram of the drop hole in the wall of the crushing chamber, Figure 7 is an explanatory diagram of the side view of the pumping chamber, and Figure 8 is the front view of the reverse feed screw conveyor. FIG. 9 is a perspective view of the crushing and discharging device of another embodiment, and FIG. 10 is a left side view of the same. 1... Input port, 2... Skew conveyor, 3...
...Crushing chamber, 4...Pressing chamber, 5...Discharge port, 6...
Reverse feed screw conveyor, 7, 8...Rotating body, 62
...Backward Skuyu room.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A rock wool/asbestos input port, a rotating body that drops the rock wool/asbestos in the input port downward, a transfer means disposed at the bottom of the input port, and a transfer means provided at the bottom of the input port. A rock wool/asbestos crushing and discharging device includes a crushing chamber for crushing transported rock wool/asbestos, a pressure chamber placed at the bottom of the crushing chamber, and a discharge port placed at the tip of the pressure chamber, A crushing and discharging device for rock wool and asbestos, characterized in that it is equipped with a return means for returning excess rock wool and asbestos accumulated in a crushing chamber to an input port. (2) The apparatus for crushing and discharging rock wool/asbestos according to claim 1, wherein the transporting means and the reversing means are screw conveyors. (3) The rock wool/asbestos material according to claim 1 or 2 of the utility model registration claim, characterized in that the transporting means is a screw conveyor, and its rotation axis is coaxial with the rotation axis of the rotating body. Grinding and discharging device. (4) The apparatus for crushing and discharging rock wool/asbestos according to claim 1, wherein the reverse feeding means is an escape hole connecting the crushing chamber and the input port.