JPH07148088A - Recovering device for fire resisting covering material - Google Patents

Abstract

PURPOSE:To perform the recovering work of a fire resisting covering material and reduce the volume of the recovered fire resisting material by sucking the fire resisting covering material alternately to a pair of cyclones through a suction main pipe, and pressing the fire resisting covering material fallen into one cyclone while sucking the fire resisting covering material to the other cyclone. CONSTITUTION:A first suction valve 6 and a first exhaust valve 14 are opened, and a second suction valve and a second exhaust valve are closed. When a vacuum blower 10 is driven, an air flow to be carried to the atmosphere through a suction main pipe 1, a first suction branched pipe 3, a first cyclone 5, a first exhaust branched pipe 12, an exhaust main pipe 9, a strainer 11, and a vacuum blower 10 is generated. By utilizing the air flow, the rock wool fallen onto a floor surface 2 is sucked into the first cyclone 5 through the suction nozzle 1a of the suction main pipe 1, and the rock wool is fallen down within the first cyclone 5, and recovered in the press casing 18 of a first press machine 16. When the press casing 18 is full, the second cyclone is operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for recovering a fireproof coating material such as rock wool which is used for fireproof coating of a steel aggregate or the like.

[0002]

2. Description of the Related Art To make a steel structure building a fireproof structure,
It is necessary to make a fireproof coating so that the strength of the steel aggregate does not decrease in the event of a fire.

Generally, the fire-resistant coating of the steel aggregate has been performed by mixing a fire-resistant coating material such as rock wool with a solidifying agent and spraying the mixture with a gun.

By the way, when rock wool is sprayed on the steel aggregate with a gun for fireproof coating, the rock wool not adhered to the steel aggregate falls on the floor surface.

As described above, if the rock wool that has fallen on the floor during the fireproof coating of the steel aggregate is left as it is, it not only hinders other work, but also causes a loss in material cost. Collect the rock wool that has fallen on the surface and reuse it.

[0006] Conventionally, the collection of rock wool that has fallen on the floor has been performed by suction with an industrial vacuum cleaner.

[0007]

By the way, since the conventional collection of rock wool is performed by an electric vacuum cleaner, when the processing capacity of the electric vacuum cleaner is reached, the rock wool is stopped and recovered. It is necessary to take out the rock wool, which causes the work of collecting rock wool to be intermittent, resulting in very poor workability. Also, since the vacuum cleaner is not dedicated to the collection of rock wool, the filter of the vacuum cleaner gets clogged immediately,
The suction force decreases and rock wool cannot be collected. Therefore, it is necessary to frequently clean the filter of the electric vacuum cleaner, which is very troublesome and troublesome. Furthermore, when the rock wool collected by the vacuum cleaner is to be stored for reuse, the vacuum cleaner does not have a mechanism for reducing the volume of the rock wool, which is cottony and bulky. Requires a large space.

The present invention has been made in view of the above problems, and provides a device for recovering a refractory coating which can continuously collect the refractory coating and reduce the volume of the recovered refractory coating. The purpose is.

[0009]

In order to achieve the above object, the present invention is provided with a pair of cyclones for separating solids in an air stream and dropping the solids from the main suction pipe whose tip is close to the floor surface. An exhaust main pipe in which two suction branch pipes, which are branched and each have a valve in the middle thereof, are tangentially connected to the upper end sides of the pair of cyclones, and the rear ends thereof are connected to a vacuum blower via a strainer. Two exhaust branch pipes each having a valve in the middle thereof are respectively connected to the upper ends of the pair of cyclones, and a press machine is provided below each of the pair of cyclones.

[0010]

According to the method of the present invention, the above-mentioned valves are switched in a timely manner to alternately suck the refractory coating material from the tip of the main suction pipe into the pair of cyclones, and while the refractory coating material is sucked into one cyclone. By pressing the refractory coating material dropped by the other cyclone first by the pressing machine provided below the other cyclone, the fireproof coating material can be continuously collected and recovered. The volume of the refractory coating material can be reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A refractory coating material collecting apparatus according to the present invention will be described below with reference to an embodiment shown in FIGS.
1 is a front view of the device of the present invention, and FIG. 2 is a plan view thereof.

In FIGS. 1 and 2, (1) is a main suction pipe having a suction nozzle (1a) close to the floor surface (2) at its tip, and its rear end is connected to a first suction branch pipe (3) and a first suction branch pipe (3). 2 to the suction branch pipe (4). A rear end of the first suction branch pipe (3) is tangentially connected to an upper end side portion of the first cyclone (5), and a first suction valve (6) is provided in the middle thereof.
Have. A rear end of the second suction branch pipe (4) is connected to an upper end side portion of the second cyclone (7) and has a second suction valve (8) in the middle thereof. (9) is an exhaust main pipe whose rear end is connected to a vacuum blower (10) through a strainer (11), and its tip is a first exhaust branch pipe (12) and a second exhaust branch pipe (13). Branched to. First exhaust branch pipe (1
2) has a tip connected to the upper end of the first cyclone (5) and has a first exhaust valve (14) in the middle thereof. Second
The exhaust branch pipe (13) has a tip connected to the upper end of the second cyclone (7) and has a second exhaust valve (15) in the middle thereof. A first press machine (16) is provided below the first cyclone (5), and a second press machine (17) is provided below the second cyclone (7). The first press machine (16) and the second press machine (17) have the same structure. Here, the first press machine (16) will be described.
The description of the second press machine (17) is omitted. The first press machine (16) is provided with a press casing (18) in communication with the lower end of the first cyclone (5), and a press plate (19) can slide inside the press casing (18). Installed in
The press plate (19) is reciprocated by the expansion and contraction of the piston rod (22a) of the press cylinder (22) mounted on the carriage (20) via the bracket (21). Further, a gate (23) is slidably provided at the opening of the tip of the press casing (18), and the gate (23) is the first cyclone (5).
The piston rod (24
The press casing (1
8) The tip opening is opened and closed. Further, a support member (25) is provided on the press plate (19), an ejector cylinder (27) is attached to the support member (25) via a bracket (26), and a piston rod (27a) of the ejector cylinder (27) is attached. The tip of the is inserted into the hole (28) provided in the press plate (19).

The device of the present invention has the above-mentioned structure, and its operation will be described below.

First, the first suction valve (6) and the first
The exhaust valve (14) is opened, and the second suction valve (8) and the second exhaust valve (15) are closed. When the vacuum blower (10) is driven in this state, the suction main pipe (1), the first suction branch pipe (3), the first cyclone (5), the first exhaust branch pipe (12), the exhaust main pipe (9), an air flow that flows through the strainer (11) and the vacuum blower (10) to the atmosphere is generated, and the air flow is used to suck the rock wool that has fallen to the floor surface (2) into the main suction pipe ( 1) Suction nozzle (1
a) is sucked into the first cyclone (5) through the first suction branch pipe (3), the rock wool is dropped downward in the first cyclone (5), and the first press machine ( 16)
The rock wool is sequentially collected inside the press casing (18). When the inside of the press casing (18) of the first press machine (16) is filled with rock wool, the first suction valve (6) and the first exhaust valve (1
4) is closed and the second suction valve (8) and the second exhaust valve (15) are opened. Then, the suction main pipe (1), the first suction branch pipe (3), the first cyclone (5), the first exhaust branch pipe (12), the exhaust main pipe (9), the strainer (11) and the vacuum blower ( The air flow flowing to the atmosphere through each of 10) disappears, and instead of this, the main suction pipe (1), the second suction branch pipe (4), the second cyclone (7), the second exhaust branch pipe. An air flow is generated which flows through the (13), the exhaust main pipe (9), the strainer (11) and the vacuum blower (10) to the atmosphere. As a result, the rock wool falling on the floor surface (2) is sucked into the second cyclone (7) from the suction nozzle (1a) of the main suction pipe (1) through the second suction branch pipe (4). . And like this, rock wool is second
The volume of rock wool inside the press casing (18) is reduced by the first press machine (16) while being sucked into the cyclone (7). That is, the press plate (19) is moved forward by the press cylinder (22) as shown by the one-dot chain line in FIG. 1, and the press plate (19) and the gate (23) for closing the front end opening of the press casing (18). Then, the rock wool inside the press casing (18) is pressed to reduce the volume and form a block shape. After this, the gate (2
3) is opened by the open / close cylinder (24) as shown by the one-dot chain line in FIG. 1, and then the piston rod (27a) of the ejector cylinder (27) is extended to press with the first press machine (16). Ejector cylinder (27) for rock wool that has been reduced in volume and formed into a block shape
The piston rod (27a) is pressed and discharged from the opening of the press casing (18). Then, while the volume of rock wool is reduced and discharged by the first press machine (16) as described above, the rock wool sucked into the second cyclone (7) is discharged in the second cyclone (7). It is dropped downward and sequentially collected inside a press casing (not shown) of the second press machine (17). When the inside of the press casing of the second press machine (17) is filled with rock wool, the first suction valve (6) and the first suction valve (6)
By opening the exhaust valve (14) and opening the second suction valve (8) and the second exhaust valve (15), the main suction pipe (1), the second suction branch pipe (4), and the second cyclone (7), the second exhaust branch pipe (13), the exhaust main pipe (9), the strainer (11) and the vacuum blower (10), respectively, while extinguishing the air flow flowing to the atmosphere, and at the same time, the suction main pipe (1) , A first suction branch pipe (3), a first cyclone (5), a first exhaust branch pipe (12), an exhaust main pipe (9), a strainer (11) and a vacuum blower (10) respectively to the atmosphere. To generate a flow of air that flows to the floor surface (2) from the suction nozzle (1a) of the main suction pipe (1) to the first suction branch pipe (3). After that, it is sucked into the first cyclone (5). Then, while the rock wool is sucked into the first cyclone (5) in this way, the volume of the rock wool is reduced and discharged by the second press machine (17), and the above operation is repeated thereafter. Let the rock wool collection work be performed continuously.

In the device of the present invention, the sensor detects that the rock wool is full in the first press machine (16) and the second press machine (17), and the first signal is sent from the sensor to detect the first. The suction valve (6), the second suction valve (8), the first exhaust valve (14) and the second exhaust valve (15) can be switched. In addition, a bag packing device (not shown) is provided at the rock wool discharging portion from the first press machine (16) and the second press machine (17), and the bag press device allows the first press machine (16 ) And the rock wool discharged from the second press machine (17) can be bagged. Therefore, rockwool is harmful to the human body, but such bagging does not adversely affect the human body. Further, although a cover is not provided in the drawings for easy understanding of the arrangement and configuration, in reality, a cover is provided to prevent noise and the like, and a design effect is achieved by drawing a picture on the outer surface of the cover. You can also

[0016]

As described above, since the device of the present invention can perform the work of recovering the fireproof coating material alternately and continuously, it has the advantage that the workability can be improved and the volume can be reduced. Therefore, there is a remarkable effect that, when it is stored for reuse, it is possible to obtain a storage efficiency several times as high as that of the conventional one that is collected without reducing the volume.

[Brief description of drawings]

FIG. 1 is a front view of a refractory coating material collecting apparatus according to the present invention.

FIG. 2 is a plan view of FIG.

[Explanation of symbols]

 1 suction main pipe 2 floor surface 3 first suction branch pipe 4 second suction branch pipe 5 first cyclone 6 first suction valve 7 second cyclone 8 second suction valve 9 exhaust main pipe 10 vacuum blower 11 strainer 12 First exhaust branch pipe 13 Second exhaust branch pipe 14 First exhaust valve 15 Second exhaust valve 16 First press machine 17 Second press machine 18 Press casing 19 Press plate 22 Press cylinder 23 Gate 24 Open / close cylinder 27 Ejector cylinder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ken Mamiya 1-48 Jimmucho, Yao-shi, Osaka Morita Special Machinery Co., Ltd.

Claims (1)

[Claims] 1. A pair of cyclones provided with a pair of cyclones for separating solid substances in an air stream and dropping them downward, branching from a main suction pipe whose tip is close to the floor surface and each having a valve in the middle thereof. Two branch pipes are tangentially connected to the upper end side portions of the pair of cyclones, respectively, and a rear end is branched from an exhaust main pipe connected to a vacuum blower through a strainer and two valves each having a valve in the middle are branched. An apparatus for recovering a fireproof coating material, characterized in that an exhaust branch pipe is connected to upper ends of the pair of cyclones, and a press machine is provided below the pair of cyclones.