JP3439736B2 - Assembling hopper in pneumatic transportation equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly type in a pneumatic transportation apparatus for continuously transporting a conveyed object such as sand to a destination by utilizing a vacuum suction force. About hopper. 2. Description of the Related Art Conventionally, a method utilizing a cyclone tank for pneumatic transportation of sand or the like has been known.
As described in Japanese Patent Application Publication No. 187404, light vehicles equipped with self-propelled cyclones and light vehicles equipped with non-self-propelled cyclones are mainly used for large vehicles, and thus cannot be used in residential areas. Therefore, there has been a demand for a cyclone-type tank that can be used in places where vehicles cannot enter, such as in the back alleys of residential areas. [0003] Therefore, the present invention can be used in places where vehicles cannot enter, such as the backstreets of residential areas, by assembling and disassembling the tank with a plurality of components. An object of the present invention is to provide an assembling hopper in a pneumatic transportation device. [0004] To this end, the assembly type hopper in the pneumatic transportation device of the present invention is formed from a cylindrical member made of a rigid material such as reinforced plastic or stainless steel, has an upper opening, and goes downward. And gradually fills the shoulder part from the small diameter part to the large diameter part.
A suction unit arranged ter, shoulders fitted to the lower end of the suction unit, not suited <br/> radially around the outer peripheral surface of the barrel portion continuous to the shoulder portion, L which opens downward Comprising a U-shaped introduction pipe,
A carry-in portion in which wear-resistant rubber is adhered to the inner surface of the body portion where the introduction pipe is located , a main body portion having an appropriate length fitted to the lower end of the carry-in portion, and a lower end of the main body portion fitted. , Balance weight
A shutter with a balance weight that is automatically closed by the action of the suction port is connected to the outlet, and comprises a take-out section whose diameter gradually decreases toward the take-out port, the suction section, the carry-in section, the main body section, The take-out portion is a fitting step of uneven fitting.
The parts are configured to be freely disassembled and disassembled. An embodiment of the present invention will be described below with reference to the drawings. The assembling hopper 1 in the pneumatic transportation device of the present invention is formed of a cylindrical member made of a rigid material such as reinforced plastic or stainless steel. As shown in FIG. A suction part 3 fitted to a lower end of the suction part 3 and an introduction pipe 6 directed to a center in a radial direction on an outer peripheral surface of a body part 5 continuous with the shoulder part 4; 5, a carry-in portion 8 having an abrasion-resistant rubber 7 adhered to an inner surface thereof, a body portion 9 fitted to a lower end of the carry-in portion 8 and having an appropriate length, and fitted to a lower end of the body portion 9, Shutter 10 with balance weight is taken out 11
And a take-out section 12 having a diameter gradually reduced toward the take-out port 11. The suction section 3, the carry-in section 8, the main body section 9, and the take-out section 12 are configured to be assembled and disassembled. ing. The suction part 3 is formed of a cylindrical member made of a rigid material such as reinforced plastic or stainless steel whose upper part 2 is opened and whose diameter gradually increases downward. Flange 1 around opening
3, a plurality of holes 14 are formed in the circumferential surface of the flange 13, and a bellows-like return flexible connected to a hole 14 of the flange 13 of the upper two openings and a vacuum pump (not shown). Tube 1
5 and the hole 14 of the flange 13 are hermetically connected by bolts and nuts (not shown). A filter 16 having a predetermined mesh is arranged in the shoulder portion from the large-diameter portion to the small-diameter portion in the transverse direction inside the suction portion 3 so as to prevent the transported object from being entrained by the suction force of the vacuum pump. I have to.
In addition, a fitting step (not shown) is formed at the lower end of the suction unit 3 for fitting into and out of the carry-in unit 8. The carry-in portion 8 is made of a cylindrical member made of a rigid material such as reinforced plastic or stainless steel having a body portion 5 having a larger diameter than the suction portion 3 and a shoulder portion 4 fitted to the suction portion 3. The upper end of the shoulder 4 has a fitting step formed so as to fit the lower end of the suction part 3 and the shoulder 4 unevenly.
Further, an introduction pipe 6 is provided on the outer peripheral surface of the body portion 5 toward the center in the radial direction. The inlet pipe 6, a pre-Symbol L-shaped tube which opens downwards in the loading section 8, a flange 13 having a plurality of holes 14 in the periphery of the opening of the side exposed to the outside, the suction unit 3 Similarly to the upper two openings, the flange 13 of the bellows-shaped flexible feed pipe 17 through which the object is transported by air and the flange 13 of the introduction pipe 6 are bolts and nuts (not shown).
More airtight connection. The carry-in section 8 has an abrasion-resistant rubber 7 adhered to the inner surface of the body section 5, and a conveyed object pneumatically conveyed through the feed flexible pipe 17 is moved from the introduction pipe 6 to the carry-in section 8. To prevent abrasion due to the collision of the transported object with the wall of the carry-in portion 8 at the time of separation from the air. Furthermore, the main body 9
A fitting step (not shown) is formed to fit the concave and convex. The main body 9 is formed of a cylindrical member having the same diameter as that of the carry-in portion 8 and having an appropriate length made of a rigid material such as reinforced plastic or stainless steel. A step (not shown) and the lower end 1
2 and a fitting step (not shown) that is fitted into the concave and convex portions. The take-out portion 12 is made of a reinforced plastic or stainless steel having a body portion having a fitting step (not shown) fitted into the main body portion 9 in an uneven manner , and an outlet 11 having a smaller diameter than the body portion. The shutter 10 is made of a rigid material such as a cylindrical member, and a shutter 10 with a balance weight is attached to the outlet 11. The balance weighted shutter 10 includes:
An inverted L-shaped mounting member 18 fixed to the outer periphery of the outlet 11, and a parallel rod 19 pivotally supported at the center by the mounting member 18.
An opening / closing lid 20 is fixed to one end of the parallel rod 19 on the side of the outlet 11, and a balance weight 26 is fixed to the other end.
It is configured to be closed by. Next, a method of using the assembling hopper 1 in the pneumatic transport apparatus of the present invention will be described. A transport object such as a sand truck is transported to a destination where a transport vehicle such as a dump truck cannot enter, for example, a back alley. Figure 3
As shown in FIG. 7, a suction hose 22 is connected from a water-sealed vacuum pump-equipped vehicle 21 to a submerged separation chamber 23 via a load release valve device 27, and a bellows-shaped return flexible tube 15 connected to the chamber 23 is connected. Is provided to the back of the alley, and another bellows-shaped feed flexible tube 17 having a suction port is similarly provided to the back of the alley. At the back of the alley, the return flexible pipe 15 connected to the chamber 23 is fixedly connected to the flange 13 at the upper two openings of the suction section 3, and the feed flexible having the suction port 24 in the introduction pipe 6 of the carry-in section 8. The pipe 17 is connected and fixed to the flange 13, and the suction part 3, the carry-in part 8, the main body part 9,
The take-out sections 12 are fitted in order to form the hopper 1,
The suspension belt 25 is wrapped around the shoulder 4 of the take-out part 12 of the completed hopper 1 and suspended on a support structure (not shown) such as a roof eave. At this time, the hopper 1 is hung upright, and the outlet 11 of the take-out part 12 is closed by the action of the balance weight 26 of the shutter 10 with balance weight. Next, after the sand transported by a dump truck or the like is deposited in the vicinity of the chamber 23, the vacuum pump of the water-sealed vacuum pump-equipped car 21 is driven to generate a suction force. 22, load release valve device 2
7, since it is generated at the suction port 24 of the feeding flexible pipe 17 through the chamber 23, the return flexible pipe 15, the hopper 1, and the introduction pipe 6, when the suction port 24 is pressed against the pile of sand, the sand is removed. The hopper 1 is sucked by the suction force and sent along with the air to be transported through the flexible tube 17.
Will be released. In the hopper 1, the suction force is weakened and the introduction pipe 6 is opened downward because the feed flexible pipe 17 suddenly exits from the narrow place to the wide place of the carry-in part 8. While the air returns from the upper two openings of the upper part 2 and is sucked into the flexible tube 15.
The fine particles return together with the air and are sucked into the flexible tube 15. However, since the return flexible tube 15 is connected to the sedimentation type chamber 23, the fine particles are sedimented and separated in the chamber 23 and only the air is evacuated. Sucked into pump. When a certain amount of sand is conveyed by air through the feed flexible tube 17 and accumulates in the hopper 1, the suction is stopped or the suction force is reduced by the load release valve device 27 for releasing the suction pressure, and the accumulated sand is removed. Overcoming the balance weight 26 of the shutter with balance weight 10 and opening the open / close lid 20,
It flows down from the outlet 11 and deposits on the ground. When the flow of the sand deposited on the hopper 1 ends, the opening / closing lid 20 is automatically closed by the action of the balance weight 26, and the load release valve device 27 is returned to the original position, and the deposition of the sand on the hopper 1 is continued.
Note that a suction force is constantly applied to the hopper 1 in which the suction unit 3, the carry-in unit 8, the main body unit 9, and the take-out unit 12 are fitted in order when sand is deposited, so that no special fixing means is required. The connection state is also maintained. The assembling hopper in the pneumatic transportation device of the present invention is composed of a plurality of hopper components so that it can be assembled and disassembled, so that it can be compactly transported during disassembly and utilizes suction force when sand is deposited. Mutual coupling can be strengthened.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of an assembled hopper in a pneumatic transportation device of the present invention. FIG. 2 is an enlarged sectional view of a main part of an assembling hopper in the pneumatic transportation device of the present invention. FIG. 3 is an explanatory view of a use state of an assembling hopper in the pneumatic transportation device of the present invention. [Description of Signs] 1 Hopper 2 Upper part 3 Suction part 4 Shoulder part 5 Body part 6 Inlet tube 7 Abrasion-resistant rubber 8 Carry-in part 9 Body part 10 Shutter with balance weight 11 Take-out 12 Take-out part 13 Flange 14 Hole 15 Returnable Flexible tube 16 Filter 17 Feed flexible tube 18 Mounting member 19 Parallel rod 20 Opening / closing lid 21 Water-sealed vacuum pump mounted car 22 Suction hose 23 Chamber 24 Suction port 25 Suspension belt 26 Balance weight 27 Load release valve device

Claims (1)

(57) [Claims 1] It is formed of a cylindrical member made of a rigid material such as reinforced plastic or stainless steel, and has an opening at an upper portion, gradually increasing in diameter downward, and increasing from a small diameter portion to a large diameter.
A suction part with a filter arranged on the shoulder part that becomes the diameter part,
Shoulders fitted to the lower end of the suction unit, not suited to the radial center to the outer peripheral surface of the barrel portion continuous to the shoulder portion, which opens downward
A carry-in section comprising an L-shaped introduction pipe, a wear-resistant rubber adhered to an inner surface of a body section where the introduction pipe is located, and a main body section fitted to a lower end of the carry-in section and having an appropriate length. , Is fitted to the lower end of the main body , and is automatically closed by the action of the balance weight.
Balance weight with the shutter is connected to the outlet that,
The suction portion, the carry-in portion, the main body portion, and the take-out portion are configured to be assembled and disassembled by a fitting step portion with concave and convex fittings. An assembling type hopper in a pneumatic transportation device.