JPS5936520A - Method for stowing dust by compression - Google Patents

Abstract

PURPOSE:To perform a compressing operation of a lump of dust automatically, in a short time and easily with a simple operation of only opening and closing solenoid valves, by compressing and stowing the lump of dust with an air flow. CONSTITUTION:When the rear end Ae of a flexible hose is pulled out from a spigot B after finishing a stowing operation of dust (a), solenoid valve I and C are closed and H and J are opened simultaneously with said pulling. Then, only for a short time a blower M continuing to rotate without changing its rotational direction produces an air flow, which compresses a bulky and large volume lump of dust (a) from its upper side to make the volume of the lump small and flows out of a dust container F and a lower can E and is filtered by a secondary filter K, and the clean air is discharged. Next, simultaneously with the stop of the blower M, the valves H and J are closed and the valves I and C are opened, and the air flows in the directions of arrows R1, R2 so that it is prepared to be used as a sucking air for stowing the dust when the next dust collection is started.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to compressing and containing dust with an air stream.

Conventionally, inside a factory or workshop (hereinafter referred to as "inside a factory, etc.")
A commonly used method for collecting dust by suction is to suck the dust with a suction nozzle, and then move the dust to the collection site through a subsequent airflow distribution pipe (hereinafter referred to as "pipe"). The dust is then separated from the conveying air stream and stored, while the clean air stream is discharged, separated from the conveying air stream. The stored dust is very bulky, so a short time of dust collection will result in a large volume of dust ring, so it is often compressed, often taken out and transported to another place, or removed from the beginning. If a large-capacity storage device is installed or not, the dust collection operation will be hindered, but whether the compaction work or transportation work is mechanized or the large-capacity storage device is installed, there is no need to install a large-capacity storage device. However, in most cases, the compaction and transportation work has relied on human labor, but since it is also a task that people dislike, the labor costs are unexpectedly high, so it has not been done in the past. , some kind of countermeasure has been requested.

The method of the present invention satisfies this need. That is, even if the rear end of the flexible hose is removed from the insertion port after the dust collection operation by the dust collector is completed, the dust collection suction air still flows. The generation blower continues to rotate for a short time without changing its direction of rotation, but at the same time as the rear end of the flexible hose is removed from the insertion port,
By automatically opening and closing a solenoid valve installed in the pipe, the direction of the airflow is directed from one bottom to the next of the dust storage can for a short period of time, which is different from before. Then, when the blower stops rotating, the direction of the airflow is automatically changed again to the direction of the suction airflow for dust storage. This dust compression and storage method is characterized by opening and closing a solenoid valve.

The configuration of the present invention will be explained in detail below.

FIG. 1 is a simplified side view of an embodiment of an apparatus for carrying out the method of the present invention, and shows a solenoid valve (I) provided in a pipe (Pl) and a solenoid valve (I) provided in a pipe (R2). C) is opened, and at the same time, the solenoid valve ■ installed on the pipe (R3) and the solenoid valve (J) installed on the pipe (R4) are closed. The edge (Ae)
When inserted into the outlet (B), the blower automatically starts rotating, and due to its rotation, air flows in the direction of the arrow (R1) inside the pipe (p+). Therefore, the inside of the dust storage can (Pl becomes negative pressure,
Therefore, the air inside the pipe (R2) flows in the direction of the arrow (R2) and becomes a suction air flow for dust storage.
Dust (a) such as fine dust from inside a factory is sucked together with air from a suction nozzle N attached to the tip of a flexible hose (5). As soon as the dust (a) sucked in with this air enters the dust storage can (LJ), the speed of the conveying air flow decreases, so most of the dust (a) is sucked into the lower part of the dust storage can (L). E) Head toward the top of the dust storage container (dropped into Pl and only have light specific gravity, or dust storage can L) inside, and are attached to each bottom part (D), 1
The next filter (G) filters and cleans the air flow (
R+) and is discharged via a blower. Note that multiple outlets (B) are installed on walls, pillars, or floors in various locations within the factory, but the distance between the outlets (B) and the blower (towards) is quite large. Since it is usually long, the friction loss caused by the friction of the suction air flow with pipes, etc. is also quite large. Requires generation of suction air flow. Next, after the dust (a) storage operation is completed, the rear end (Ae) of the flexible hose prisoner is removed from the insertion port (8), and the blower is then operated for a short period of time. For example, it is designed to continue rotating without changing its direction of rotation for a few seconds to more than 10 seconds, and then stop. When it is removed from the socket (B), the solenoid valves (I) and (C) are automatically closed and the solenoid valves (J) are opened at the same time. Up until now, the arrows (R1) and (R2
) direction is changed by the rotation of the blower, which continues to rotate without changing its rotational direction for a short period of time.
The pipe (R8) sucks in outside air, which is the arrow (R3)
Since the airflow is in the direction of the dust storage container (
F) Bulky and large volume of dust (a
) is compressed from above to form a small-volume dust ring, which flows out from the dust storage container (F) and the bottom of the lower part (E), forming an air flow as indicated by the arrow (R4). The air is filtered by a secondary filter and released as a clean air stream. The above-mentioned force to compress the dust (a) from above is quite strong because the distance between the blower and the dust storage can (L) is short and there is little friction loss with pipes, etc. Become something. Furthermore, in this case, due to the air flow (R8),
The primary filter (C) is cleaned of clogging caused by fine dust during the airflow (R1). Furthermore, the lower part of each lower part (E) and the lower part of the dust storage container (F) are made in a net shape that hardly allows dust (a) to pass through, but allows air flow to pass through. There is no obstruction to the outflow of the air flow (R4). Furthermore, the lower can (D) and the lower can (E) are airtightly connected (LED);
D) can be easily removed, so the dust storage container (F) inside the lower can (E) is
) can be easily taken out and replaced with a new empty dust container (F), but when the dust container (F) is full of dust (a), This can be detected by a sensor (not shown). Now, when the blower, which has continued to rotate for a short period of time, stops, at the same time, the solenoid valve (5) automatically closes, and the solenoid valves (I) and (C) open, and the next When the dust collection operation starts, the air flow or
The air is prepared to flow in the directions of arrows (R+) and (R2) to become suction air for dust storage.

Since the present invention has the above-described configuration, the compacting work of dust lumps, which is unsanitary and disliked by humans, which has conventionally been done manually, can be done with a simple operation of simply opening and closing a solenoid valve. , which can be performed automatically, quickly, and easily using a strong compression force, not only contributes to saving labor costs, but also saves energy and is also effective from a hygienic point of view. The method of the present invention is a useful dust compression method that has many advantages, such as being able to compress dust more uniformly and more strongly than by manual labor, making it possible to form dust lumps that are easy to transport. This is a storage method.

[Brief explanation of the drawing]

FIG. 1 is a simplified side view of one embodiment of an apparatus for carrying out the invention. (a)--Dust, (I) (C) (H) (J)
...Solenoid valve, (Pl) (R2) (R8) (R4)
Pipe, (R+) (R2) (RB) (R4)
...Air flow, L)...Dust storage can, (D)...Lower can, (E)...Lower can, (F)...Dust storage container, Foundation...Blower -1N...suction nozzle, prisoner...
・Flexible pose, (Ae)...Rear end of A, (B
) Inlet, (G)...Primary filter, ■...Secondary filter. Patent applicant Morita Industries Co., Ltd.

Claims (1)

[Claims] Even if the rear end of the flexible hose is removed from the insertion port after the dust storage operation is completed, the blower for dust storage suction air flow generation will not change its direction of rotation and will continue to operate for only a short period of time. Although the rotation continues, the direction of the airflow can be changed for a short period of time by removing the rear end of the flexible hose from the insertion port and, at the same time, automatically opening and closing the solenoid valve installed in the pipe. Unlike before, the stored dust is compressed by directing it from the upper can to the lower can, and then when the blower stops rotating, the direction of the air flow is changed again. A method for compressing and storing dust, characterized in that a solenoid valve is automatically opened and closed in accordance with the direction of suction air flow for dust storage.