WO2008065743A1

WO2008065743A1 - Safety device, molten aluminum feeding system, and container

Info

Publication number: WO2008065743A1
Application number: PCT/JP2007/001278
Authority: WO
Inventors: Hitoshi Mizuno
Original assignee: Hoei Shokai Co., Ltd.
Priority date: 2006-11-28
Filing date: 2007-11-21
Publication date: 2008-06-05
Also published as: JP2008155282A

Abstract

Provided is a safety device, which can introduce a gas from the outside of a container but has no flow of molten aluminum to the outside from that gas introducing portion, in which the container inside is sealed to have no splashing danger when the safety device is removed, and in which no lever operation is required to improve the workability. The safety device comprises a piping unit (2) having a first open end portion (2a) and a second open end portion (2b), a first removable part (3a) attached to the side of the first open end portion (2a) for making the piping unit (2) removable with respect the later-described gas introducing portion of the container, a second removable part (3b) attached to the side of the second open end portion (2b) for making an air hose removable with respect to the piping unit (2), and a gas communication unit (4) arranged between the first open end portion (2a) and the second open end portion (2b) in the piping unit (2) and having a multiplicity of independent through holes (4a) acting as gas passages between the first open end portion (2a) and the second open end portion (2b).

Description

Specification

Safety device, molten aluminum supply system and container

Technical field

TECHNICAL FIELD [0001] The present invention relates to a safety device used for a container for containing molten aluminum and supplying molten aluminum to the outside by pressurization, a molten aluminum supply system using the container, and the container.

Background art

[0002] In a factory where aluminum (including an aluminum alloy, the same applies hereinafter) is formed using a large number of die-casting machines, aluminum materials are often supplied from outside the factory as well. In the past, the supply of materials through ingots was common. In recent years, it has become common to transport ladle containing aluminum in a molten state from a factory on the material supply side to a factory on the molding side and supply the material in a molten state to each die-cast machine. is there.

[0003] A conventional ladle has a structure like a teapot in which a supply spout is attached to the side wall of a container body in which molten aluminum is stored. By tilting the ladle, molten aluminum is supplied from the spout to the holding furnace on the molding side.

[0004] However, in the conventional ladle, for example, the inclination of the ladle is performed using a forklift. Such work was not always safe. In addition, it is necessary to provide a rotating mechanism for the forklift in order to tilt the ladle greatly (inclination and rotation). This makes the forklift configuration special. Furthermore, there was a problem that a skilled worker was required to operate the fork riff for tilting the ladle.

[0005] Therefore, a system has been proposed in which molten aluminum is supplied to the holding furnace by applying pressure in the container. Adopting such differential pressure type containers not only improves safety and workability, but also enables more detailed supply services.

[0006] When such a container is transported, a connection hole to the pressurized gas supply unit of the container It is necessary to close this hole so that molten aluminum does not leak from the surface. If the container is sealed by closing the hole, the pressure in the container may increase due to thermal expansion of the gas. As a result, there may be a problem that molten aluminum is unexpectedly discharged from the molten aluminum discharge pipe. If the lining of the container is not sufficiently dried, the problem of increased pressure inside the container due to vaporization of water becomes significant.

[0007] On the other hand, the inventors of the present invention have provided a safety device having a flow restricting portion that permits the flow of gas between the outside and restricts the flow of molten aluminum. A technology is proposed for transporting the container by attaching it to the connection hole. In this case, it may be possible to open the inside of the safety device to the atmosphere by switching the valve in case the flow restricting part is clogged. There is a problem when the flow restricting part is clogged and forget to switch the valve. That is, in such a case, the inside of the container may be under pressure, and there is a risk of the safety device jumping when attempting to remove the safety device from the container in such a state. It is.

[0008] In view of the above, the present inventors are a safety device that has a flow regulation unit that allows gas to flow outside and regulates the flow of molten aluminum. We proposed a technology that can prevent the container from being removed from the container without opening it to the atmosphere even if it is clogged. Such technologies are generally as follows. The safety device includes: a pipe for circulating gas; an interface portion having a power brag or socket composed of a pair of sockets and a brag connected to the pipe; and the pipe connected to the pipe, A flow restricting section that allows gas to flow between the container containing molten aluminum and restricts the flow of molten aluminum; and an open passage to the atmosphere connected to the piping side of the flow restricting section. An open / close valve that is inserted on the open passage and opens / closes in response to an operation of a lever, a cover that can surround at least an outer peripheral portion of the interface portion, and the open / close valve is closed The cover is at a position surrounding at least the outer periphery of the interface part, and the on-off valve is A connecting member that changes the position of the force / one in conjunction with the operation of the lever so that the cover does not surround the outer periphery of the interlace portion when the cover is open. It is characterized by this.

[0009] In this technique, in conjunction with the lever operation, the cover position is changed so that the cover surrounds the outer periphery of the socket when the release valve is closed. The socket will not be removed from the other party's plug when is closed. Therefore, it is a safety device that has a flow regulation unit that allows gas to flow outside and regulates the flow of molten aluminum, and is open to the atmosphere even when the flow regulation unit is clogged. Can be prevented from being removed from the container.

[0010] It is preferable that the distribution restricting section has a restricting member that takes the heat of molten aluminum to increase its viscosity or solidify when molten aluminum is to be distributed. For example, the regulating member is a member that allows air to pass but does not allow molten aluminum to pass. For example, steel steel, steel scourer, molded ceramic fiber, sintered aluminum, molded aluminum, porous Examples of materials include fine ceramics and metal with thin through holes or orifices. Steel wool and steel ceramic fiber are less expensive than sintered aluminum and ceramics. Sintered aluminum and ceramics are fixed to the stopper and are not easily exchanged. On the other hand, in the case of steel wool or ceramic fiber, it is highly replaceable and easy to maintain. "

Patent Document 1: Japanese Patent No. 3 4 9 2 6 8 0 (especially paragraph Nos. 0 0 0 8 to 0 0 1 1) Disclosure of Invention

Problems to be solved by the invention

[001 1] However, the safety device described above has a problem that it requires a lever operation and has poor workability.

[0012] Therefore, the object of the present invention is to enable the introduction of gas from the outside of the container, Molten aluminum does not flow out of the gas introduction section, and there is no risk of jumping when removing the safety device due to the sealed inside of the container, and further, there is no need for lever operation etc. It is to provide a good safety device, molten aluminum supply system and container.

Means for solving the problem

[0013] The safety device according to the present invention can accommodate molten aluminum inside, a gas introduction part for pressurizing the inside is provided on the upper surface side, a flow path from the inner bottom portion toward the upper surface side, and this flow A pipe communicated with the road, and by introducing a gas from the gas introduction portion, the molten aluminum accommodated in the interior can be supplied to the outside through the flow path and the pipe; A safety device used in a container that is mounted by a container and transported to a use point via a public road, the pipe having a first open end and a second open end, and the first open A first detachable component attached to the end side and configured to be detachable from the gas introduction part; and an air hose for gas introduction attached to the second open end part side Is attached to and detached from the piping section A second detachable part for functioning between the first open end and the second open end in the pipe, and the first open end and the second open end. And a gas flow part having a large number of independent through-holes, each of which is a gas passage between the open end of the gas and the gas.

[0014] The material of the gas flow portion is preferably a material having a specific gravity greater than that of aluminum and good heat conduction. When molten aluminum flows into the through-hole, it actively exchanges heat to take away the heat of the molten aluminum. Anything is acceptable.

[0015] In the present invention, since the gas inside the container normally escapes through the through-hole of the safety device, the pressure inside the container does not increase even if the gas expands inside the container. Absent. Therefore, it is possible to avoid a situation in which the pressure inside the container expands and molten aluminum flows out to the outside through the flow path and the pipe. Here, for example, when the container collapses and molten aluminum flows into the safety device through the gas introduction portion, the wall portion of the through hole of the safety device is molten aluminum. Heat is taken away from the aluminum and the molten aluminum solidifies, and the through holes become clogged. Thereby, molten aluminum does not flow out of the through hole. And in this case, since the gas flow part serves as a gas passage between the first open end and the second open end, and each has a large number of independent through holes, there are several through holes. Molten aluminum does not flow into. The through hole into which the molten aluminum has not flowed becomes a gas escape hole between the inside and outside of the container. Therefore, there is no risk of jumping when the inside of the container is hermetically sealed and the safety device is removed, and further, the lever operation or the like is unnecessary and the workability is good.

[001 6] The gas flow part is composed of a number of tubes. Since the gas flow section can be configured with only a large number of tubes in the pipe section, manufacturing can be performed very easily. In addition, if the tube is clogged, it can be replaced very easily.

[001 7] The tube is made of copper or a member containing copper.

Since copper or a member containing copper has higher thermal conductivity than aluminum, heat can be efficiently taken from the molten aluminum, and the function as a safety device is enhanced. Therefore, essentially, the tube should be made of a material having a higher thermal conductivity than aluminum. However, it can be constructed at low cost by using copper or a member containing copper. Furthermore, by using stainless steel as the material of the tube, the safety device can be configured at a lower cost. The plurality of tubes may be inserted into a pipe so as to be bundled and integrated in the pipe, and the pipe may be removably inserted into the pipe section. With this configuration, it is possible to collect a large number of tubes and remove them from the piping section simply by removing the piping from the piping section. As a result, the tube can be easily replaced. In this case, by making the tube material softer than the piping material, the deformation of the piping can be reduced even if a large number of tubes are inserted into the piping and integrated. As a result, the piping can be smoothly inserted into the piping portion, and the piping can be smoothly removed from the piping portion.

[0018] The gas flow part is composed of a sintered body in which the plurality of through holes are formed. It is characterized by that. By using a sintered product, manufacturing is easy and replacement can be easily performed.

[001 9] The sintered body is composed of ceramics. By using ceramics, heat resistance is good and the function as a safety device can be enhanced.

[0020] The through hole has a honeycomb shape in cross section. By adopting the honeycomb shape, it is easy to manufacture and the surface area of the inner wall surface of the through hole can be increased, and heat can be efficiently removed from the molten aluminum.

[0021] An inner diameter of the through hole is 2 mm or more and 4 mm or less. If the inner diameter of the through hole is smaller than 2 mm, there is a high possibility that the through hole will be clogged with dust, and if the inner diameter of the through hole is larger than 4 mm, all of the molten aluminum flows into the gas flow section. The possibility that molten aluminum will flow into the through-holes of the steel will be very high.

[0022] The inner diameter of the pipe section is 25 mm or more and 4 O mm or less. If the inner diameter of the piping part is smaller than 25 mm, the number of through holes can be taken only to the extent that the possibility of molten aluminum flowing into all the through holes when the molten aluminum flows into the gas circulation part is extremely high. If it is larger than 40 mm, the safety device becomes too heavy and the workability is hindered.

[0023] The length of the piping part is 10 Omm or more and 30 Omm or less. If the length of the piping section is shorter than 10 O mm, when molten aluminum flows into the gas flow section, heat can not be taken away sufficiently from the molten aluminum through the through holes, and the molten aluminum does not solidify and can flow outside. If it exceeds 30 O mm, the safety device becomes too long and the workability is hindered. Specifically, it hinders the opening and closing of the hatch provided with the gas introduction part of the container, and hinders workability.

[0024] The number of the through holes is 10 or more and 30 or less. If the number of through-holes is less than 10, the possibility that molten aluminum flows into all through-holes when molten aluminum flows into the gas flow section becomes very high. Therefore, if the number of through holes is more than 30, the piping section becomes thick and the safety device becomes too heavy, impairing workability.

[0025] A safety device according to another aspect of the present invention can accommodate molten aluminum inside, a gas introduction portion for pressurizing the inside is provided on the upper surface side, and a flow from the inner bottom portion toward the upper surface side. It has a passage and a pipe communicating with this flow path, and it is possible to supply molten aluminum accommodated in the inside to the outside through the flow path and the pipe by introducing a gas from the gas introduction portion. And a safety device used for a container that is mounted by a transport vehicle and transported to a use point through a public road, and includes a piping portion having a first open end and a second open end, A first detachable part that is attached to the first open end, and that is detachable from the gas inlet, and is attached to the second open end; Air hose for introducing gas A second detachable part that is detachable from the first part, and is disposed between the first open end and the second open end in the pipe part, and the first open end. And a gas flow part having a member that forms a screw-like gas passage between the second open end part and the second open end part.

[0026] In the present invention, since the gas circulation part has a member that serves as a squirrel-shaped gas passage, the substantial length of the gas circulation part can be increased, and the squeeze-like shape Since all the passages are not solidified with aluminum and a gap remains, this gap becomes a gas vent between the inside and outside of the container. Therefore, there is no risk of jumping when the inside of the container is hermetically sealed and the safety device is removed, and further, the operation of the lever is not necessary and the workability is good.

[0027] A safety device according to still another aspect of the present invention can accommodate molten aluminum therein, and a gas introduction portion for pressurizing the inside is provided on the upper surface side, and the inner surface toward the upper surface side. A flow path and a pipe communicating with the flow path, and supply of molten aluminum accommodated in the interior to the outside through the flow path and the pipe by introducing a gas from the gas introduction section; It can be used for containers that are mounted by a transport vehicle and transported to a point of use via public roads. A piping part having a first open end part and a second open end part, attached to the first open end part side, and the pipe part with respect to the gas introduction part The first detachable part for making the detachable and the second detachable for attaching the air hose for introducing gas to the pipe part, which is attached to the second open end side. And a punching metal disposed at a plurality of locations between the first open end and the second open end in the pipe.

[0028] In the present invention, since the punching metal is disposed at a plurality of locations between the first open end and the second open end in the pipe portion, the entire passage is not solidified with aluminum. Some of the holes in the punching metal remain unclogged. Therefore, this hole becomes a gas escape hole between the inside and outside of the container. Therefore, there is no danger of jumping when the inside of the container is hermetically sealed and the safety device is removed, and further, there is no need for lever operation and the workability is good.

[0029] In the molten aluminum supply system according to another aspect of the present invention, molten aluminum can be accommodated in the interior, and a gas introducing portion for pressurizing the interior is provided on the upper surface side. A flow path from the gas introduction part to the molten aluminum accommodated in the interior through the flow path and the pipe. A container that can be supplied to the outside and is carried by a transport vehicle and transported to a use point via a public road; a piping section having a first open end and a second open end; 1 is attached to the open end of the pipe, and is a detachable part for making the pipe part detachable with respect to the gas introduction part, the first open end part in the pipe part, and the second opening. Between the end and the first A gas passage between the open end and said second open end, characterized by comprising a safety device, each having a gas passage having a plurality of through-holes and independent.

[0030] A molten aluminum supply system according to still another aspect of the present invention can accommodate molten aluminum therein, a gas introduction portion for pressurizing the inside is provided on the upper surface side, and the inner bottom portion to the upper surface. A channel that goes to the side and communicates with this channel It has a pipe, and it is possible to supply the molten aluminum stored in the inside to the outside through the flow path and the pipe when the gas is introduced from the gas introduction part, and is mounted by a transport vehicle. A container transported to a use point via a public road, a piping part having a first open end and a second open end, and attached to the first open end, the gas introduction part A first removable part for making the pipe part detachable with respect to the second open end part side, and an air hose for introducing gas to be detachable from the pipe part A second detachable component; and the first open end and the second open end, which are disposed between the first open end and the second open end in the pipe portion. Gas distribution with members that use screw-like gas passages between Characterized by comprising a safety equipment with and.

[0031] In the molten aluminum supply system according to still another aspect of the present invention, molten aluminum can be accommodated in the interior, and a gas introduction part for pressurizing the interior is provided on the upper surface side. A flow path toward the side and a pipe communicating with the flow path, and the molten aluminum accommodated in the interior by introducing a gas from the gas introduction section to the outside through the flow path and the pipe A container that is mounted by a transport vehicle and is transported to a use point via a public road, a piping portion having a first open end and a second open end, and the first A first detachable part that is attached to the open end side and is configured to be detachable from the gas introduction part; and is attached to the second open end part side for introducing gas. Air hose is the pipe A second detachable component for making it detachable, and a punching metal disposed at a plurality of locations between the first open end and the second open end in the pipe portion. And a device.

[0032] The container according to the present invention can accommodate molten aluminum inside, a gas introduction part for pressurizing the inner part is provided on the upper surface side, and a flow path extending from the inner bottom part to the upper surface side, and this A pipe communicating with the flow path, and the molten aluminum contained in the interior by introducing gas from the gas introduction section; A container that can be supplied to the outside through the pipe and is carried by a transport vehicle and transported to a use point through a public road, the gas introduction part force for gas introduction provided on the upper surface of the container It has piping, The punching metal is inserted in the said piping for gas introduction, It is characterized by the above-mentioned.

[0033] In the present invention, since the punching metal is inserted in the gas introduction pipe, all of the passages of the gas introduction pipe are not solidified with aluminum, and any of the holes in the punching metal are clogged. It remains without. Therefore, this hole becomes a gas escape hole between the inside and outside of the container. Therefore, the inside of the container is hermetically sealed, and molten aluminum is not unexpectedly ejected from the container.

[0034] The punching metal has a cylindrical shape, and the central axis of the cylindrical punching metal is in a relationship substantially perpendicular to the central axis of the gas introduction pipe.

[0035] Thereby, the surface area of the punching metal can be increased with a simple configuration, and the possibility of clogging all the holes becomes extremely low. Cylindrical punching metal, for example, has no top and bottom lids, and can be constructed simply by rolling a flat punching metal. Therefore, it is very easy to manufacture.

[0036] The gas introduction pipe extends upward from the upper surface of the container, is bent in a horizontal direction at a predetermined position, and is a member that allows the part bent in the horizontal direction to be rotated in the part extending upward. The punching metal is disposed below the punching metal. As a result, the gas introduction pipe can be rotated, and the member for rotation is not clogged with aluminum and cannot be rotated.

The invention's effect

[0037] According to the present invention, gas can be introduced from the outside of the container, while molten aluminum does not flow out from the gas introduction portion, and the inside of the container is hermetically sealed. There is no risk of jumping when the safety device is removed, and further, no lever operation or the like is required, and workability is improved.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a configuration of a safety device according to an embodiment of the present invention, and FIG.

1 is a cross-sectional view along A_A, and Fig. 3 is a cross-sectional view along B_B.

[0040] As shown in these drawings, the safety device 1 includes a pipe portion 2 having a first open end 2a and a second open end 2b, and a first open end 2a. Attached to the side, and attached to the first detachable part 3a and the second open end 2b side to make the piping part 2 detachable with respect to the gas introduction part of the container to be described later. A second removable part 3 b for allowing an air hose for introducing a gas to be attached to and detached from the pipe part 2, a first open end 2 a and a second open end in the pipe part 2 Between the first open end 2a and the second open end 2b, each having a plurality of independent through-holes 4a. And a gas circulation part 4. That is, in this embodiment, the breather is comprised by the piping part 2 and the gas distribution part 4. FIG.

[0041] In this embodiment, the piping part 2 is made of, for example, SPG piping, and the inner diameter of the piping part 2 is 25 mm or more and 4 Omm or less (the outer diameter is about 30 mm to 45 mm). In this embodiment, it is preferably about 30 mm. Furthermore, the length of the piping part 2 is preferably 10 Omm or more and 30 Omm or less, and in this embodiment, it is about 20 Omm.

The detachable component 3 a has a force bra socket 21 composed of a pair of sockets and a brag. The socket 21 has an O-ring 23 attached to the inner periphery of the socket body 22. A plurality of steel poles 24 are rotatably attached to the socket body 22 between its tip and the O-ring 23 along the circumference. These steel poles 24 can protrude freely on the front and back of the socket body 22. A sleeve 25 is attached to the outer periphery of the socket body 22 so as to be able to advance and retract toward the tip of the socket body 22. The sleeve 25 is given an elastic force toward the tip of the socket body 22 by the inserted sleep spring 26, and the stop ring 27 stops at a position where the tip of the sleeve 25 coincides with the tip of the socket body 22. Yes. Sleeve in this position 25 Presses the steel pole 2 4 so that it protrudes inside the socket body 2 2. Therefore, as shown in FIG. 4, when the plug 7 1 is inserted, the steel pole 2 4 is pushed into the groove 7 2 of the plug 7 1 and the steel pole 2 4 restricts the extraction of the plug 71. it can. On the other hand, when the sleeve 25 is piled up with an elastic force and pulled to the opposite side of the tip of the socket body 22, the pressing on the steel pole 24 by the sleeve 25 is released. Therefore, when the plug 7 1 is pulled out from the socket 2 1, the steel pole 2 4 protruding from the inside of the socket body 2 2 moves outward from the socket body 2 2 and comes out of the groove 7 2. It becomes possible to extract the plug 7 1 from 1.

[0043] The detachable part 3 a is a force brag consisting of a pair of sockets and a brag 7

1 has a. The plug 7 1 a is provided with a groove 7 2 a. In addition, a socket provided at the tip of an air hose for introducing gas is detachably connected to the plug 71a.

The gas flow part 4 arranged in the pipe part 2 is configured by inserting a large number of copper tubes 4 b into the pipe part 2. The hole in the tube 4 b corresponds to the through hole 4 a. That is, a large number of tubes 4 b constitute a large number of through-holes 4 a that are independent of each other and serve as gas passages between the first open end 2 a and the second open end 2 b. It will be. Since the tube is made of copper, it has a higher specific gravity than aluminum and good thermal conductivity. Therefore, when molten aluminum flows in, it actively exchanges heat and takes the heat away from the molten aluminum. It solidifies in the inside and clogs the through-holes 4a so that the outflow of molten aluminum to the outside can be regulated.

[0045] The inner diameter of the through hole 4a is preferably not less than 2 mm and not more than 4 mm, and in this embodiment, it is about 3 mm. The number of tubes 4 b (the number of through holes 4 a) is preferably 10 or more and 30 or less, and is 20 in this embodiment.

[0046] As the gas circulation part 4, various modes other than the configuration using such a tube can be considered. As another example of the gas circulation part 4, as shown in FIG. A sintered body in which the through-holes 4a are formed, for example, one made of ceramics may be used. In that case, it can be said that it is a more preferable aspect that the cross-sectional shape of the through hole is a honeycomb shape.

[0047] Such a gas flow part 4 functions as a safety means that allows gas to pass therethrough and restricts the passage of molten aluminum to the outside. Therefore, it is possible to block the gas introduction part of the container, which will be described later, so that molten aluminum does not leak out, and to prevent a situation where the molten aluminum unexpectedly flows out from the pipe of the container. In other words, even if the internal pressure of the container rises due to gas expansion or moisture evaporation, this pressure can be released outside the container. Therefore, careless pressure is applied to the molten aluminum, and high temperature molten aluminum can be prevented from leaking outside. In this case, the gas flow part 4 serves as a gas passage between the first open end part 4a and the second open end part 4b. Since it has a, molten aluminum does not flow into some through holes 4a (see Fig. 6 and Fig. 7). The through hole 4a into which the molten aluminum did not flow becomes a gas vent hole between the inside and outside of the container. Therefore, there is no danger of jumping when the inside of the container is hermetically sealed and the safety device 1 is removed, and a conventional lever operation or the like is unnecessary and workability is good.

[0048] Next, an example of a container in which the safety device 1 is used will be described.

FIG. 8 is a sectional view showing the configuration of such a container, and FIG. 9 is a plan view thereof.

[0050] In the container 100, the large lid 15 52 is disposed in the upper opening 15 51 of the bottomed and cylindrical main body 150. Flange 1 5 3 and 1 5 4 are provided on the outer peripheries of the main body 1 5 0 and the large lid 1 5 2, respectively. The main body 1 5 0 and the large lid 1 5 2 are fixed by tightening these flanges with Port 1 5 5. In addition, the main body 1550 is a metal (for example, iron) on the outer side (frame), for example. The inside of the frame is made of a refractory material, and a heat insulating material is interposed between the outer metal and the refractory material.

[0051] One place on the outer periphery of the main body 1 5 0 communicates with the pipe 1 5 6 from the inside of the main body 1 5 0 A pipe mounting portion 1 5 8 provided with a flow path 1 5 7 is provided.

[0052] The flow path 1 5 7 in the pipe attachment portion 1 5 8 is connected to the main body 1 5 0 through the opening 1 5 7 a provided at a position close to the container main body bottom 1 5 0 a on the inner periphery. 1 5 0 It extends toward the upper part of the outer periphery. The pipe 1 5 6 is fixed so as to communicate with the flow path 1 5 7 of the pipe mounting portion 1 5 8.

The pipe 1 5 6 has, for example, a “letter shape. The frame of the pipe 1 5 6 is made of a metal such as iron, for example, and a lining is formed as a lining inside thereof. This lining is made of a refractory material, and the inside of the lining is formed as a flow channel of molten aluminum, for example, a dense refractory ceramic material.

[0054] An opening 1 60 is provided at substantially the center of the large lid 1 52, and a hatch 1 62 to which a handle 1 61 is attached is disposed in the opening 1 6 0. The hatch 1 6 2 is provided at a position slightly higher than the upper surface of the large lid 1 5 2. The hatch 1 6 2 is attached to the large lid 1 5 2 via a hinge 1 6 3 at one place on the outer periphery. As a result, the hatch 16 2 can be opened and closed with respect to the opening 1 60 of the large lid 1 52. In addition, the port with handle for fixing the hatch 1 6 2 to the large lid 1 5 2 is placed at two places on the outer periphery of the hatch 1 6 2 so as to face the position where the hinge 1 6 3 is attached. 1 6 4 is installed. Closing the opening 1 6 0 of the large lid 1 5 2 with the hatch 1 6 2 and rotating the port 1 6 4 with the handle will fix the hatch 1 6 2 to the large lid 1 5 2 . In addition, the hatch 16 6 2 can be opened from the opening 1 60 of the large lid 1 5 2 by reversely rotating the port 16 4 with the handle to release the fastening. In the state where the hatch 16 2 is opened, the gas burner is inserted into the container 100 through the opening 160 for maintenance during preheating.

[0055] First to third through holes 1 65 a to 1 65 c that penetrate the inside and outside of the container 100 are provided at positions away from the center of the hatch 16 2 by a predetermined distance. Yes. Each through hole 1 65 a to 1 65 c is threaded. The first and second through holes 1 6 5 a and 1 6 5 b have plugs constituting one of the force bras 1 6 8 a and 1 6 8 b is installed. A first socket 70 a through which an electrode rod for detecting the liquid level is passed is attached to the first through hole 1 65 a. A second socket 70 b through which a similar electrode rod is passed is attached to the second through hole 65 b. Each plug and socket make up a power bra.

[0056] The third through hole 1 65 c is used for internal pressure adjustment for reducing the pressure in the container 100 and increasing the pressure. The third through hole 1 65 c is connected to a pressure-reducing pipe 16 6 6. The pipe 1 6 6 extends upward from the third through hole 1 65 c, bends at a predetermined height, and extends horizontally therefrom. A swivel joint 180 is interposed at a predetermined position in the vertical portion of the pipe 1 6 6 in order to smoothly rotate the pipe 1 6 6 in the horizontal direction. Further, the plug 7 1 described above is attached to the tip of the horizontal portion of the pipe 1 6 6. The “gas introduction part” is, for example, a pipe 1 6 6 to which a plug 71 is attached.

[0057] The plug 71 can be connected to the socket 21 of the safety device 1 described above. A socket for a flexible air hose (not shown) for pressurization or decompression can be connected to the plug 7 1 a of the safety device 1. A vacuum pump, an air tank, and a compressor (not shown) are connected to the air hose. Then, it is possible to introduce molten aluminum into the vessel 100 through the pipe 15 6 and the flow path 15 7 by using the pressure difference by reducing the pressure. Further, the molten aluminum can be led out of the container 100 through the flow path 1557 and the pipe 1556 using the pressure difference by pressurization.

[0058] On the bottom rear surface of the main body 150, for example, a channel member 1 71 as a leg portion having a predetermined length in a cross-sectional mouth shape into which a fork (not shown) of a forklift is inserted, for example, is parallel. Two are arranged. The channel member 1 71 has an angle of, for example, 45 ° with respect to the extending direction of the pipe 1 56.

[0059] The bottom 1 5 0a inside the main body 1 5 0 is entirely inclined so that the channel 1 5 7 side is lowered. As a result, when molten aluminum is led out to the outside through the flow path 1 57 and the pipe 1 5 6 by pressurization, so-called remaining hot water is reduced. Also, for example, during maintenance, the container 100 is tilted and the flow path 1 5 7 and piping 1 5 When the molten aluminum is led out through 6, the angle at which the container 100 is tilted can be made smaller, and the safety and workability are excellent. However, such an inclination may be reversed. As a result, clogging of the opening 1 5 7 a can be prevented.

[0060] The container 100 configured as described above is supplied into the container 100 at a first factory that adjusts the molten aluminum in a melting furnace, for example, and is mounted on a truck by a forklift. The truck travels on public roads and the container 100 is transported to a second factory with a molten aluminum two-point (eg die-casting machine holding furnace). Then, the container 100 is unloaded from the truck by a fork lift, and is transported as it is to the new spline by a forklift, and molten aluminum is supplied from the container 100 to the use point. The safety device 1 according to the present embodiment is usually attached to such a container 100. When the safety device 1 is clogged, the safety device 1 can be easily replaced.

[0061] Here, when the safety device 1 is attached to the plug 7 1 of the pipe 1 6 6, the sleeve 25 is piled up elastically as shown in Fig. 2 and pulled to the opposite side of the socket body 2 2. As shown in Fig. 4, insert socket 1 of safety device 1 into plug 7 1 of pipe 1 6 6. The safety device 1 can close the through hole of the container 100 so that the molten aluminum does not leak out, and can prevent accidental discharge of molten aluminum from the pipe 15 6 of the container 100. it can. In other words, even if the internal pressure of the container 100 is increased due to gas expansion or moisture evaporation, this pressure can be released from the gas circulation part 4 in the safety device 1 to the outside of the container 100. Because.

[0062] When the safety device 1 is removed from the plug 1 of the pipe 1 6 6, as shown in Fig. 3, the sleeve 2 5 is piled up elastically and pulled to the opposite side of the socket body 2 2 to the pipe 1 6 Remove the socket 2 1 of the safety device 1 from the plug 7 1 of 6. In this case, in the safety device 1 according to the present invention, the gas flow part 4 serves as a gas passage between the first open end part 4a and the second open end part 4b. Penetration Since it has holes 4a, even if some through-holes 4a are clogged, some of the through-holes 4a are not filled with molten aluminum. It becomes a loophole. Therefore, the safety device 1 does not jump by the pressure in the container 100, and safety can be further enhanced.

FIG. 10 is a cross-sectional view showing a configuration of a safety device according to another embodiment of the present invention.

[0064] As shown in Fig. 10, this safety device 50 includes a screw-like gas passage between the first open end 3a and the second open end 3b in the pipe section 2. The gas flow part 5 2 which has the member 5 1 to be comprised is comprised. The material of the member 51 is preferably copper, for example.

[0065] Since the gas flow part 52 has the member 51 that serves as a screw-like gas passage, the substantial length of the gas flow part 52 can be increased. Since it is screw-like, all the passages are not solidified with aluminum, and a gap remains. This gap becomes a gas vent between the inside and outside of the container 100. Therefore, there is no risk of jumping when the safety device 50 is removed because the inside of the container 100 is sealed, and further, the operation of the lever is not required and the workability is good.

FIG. 11 is a cross-sectional view showing a configuration of a safety device according to still another embodiment of the present invention. Figure 12 is a side view.

[0067] As shown in these drawings, the safety device 60 is provided at a plurality of places between the first open end 3a and the second open end 3b in the pipe section 2, for example, five places. It has a perforated metal 61. A suitable material for the punching metal 61 is, for example, copper.

[0068] In the present invention, since the punching metal 61 is disposed at a plurality of locations between the first open end 3a and the second open end 3b in the pipe portion 2, all of the passages However, some of the holes in the punching metal 61 remain without clogging without solidifying with aluminum. Therefore, this hole is between the inside and outside of the container 100. This is a gas hole. Therefore, there is no risk of jumping when removing the safety device 60 due to the inside of the container 100 being hermetically sealed, and further, there is no need for lever operation and the workability is good.

FIG. 13 is a partial cross-sectional view showing a configuration of a container according to still another embodiment of the present invention.

[0070] As shown in Fig. 13, this container 100 is a container itself provided with a safety mechanism without an external safety device.

[0071] As a safety mechanism, a punching metal 70 is interposed under the swivel joint 180 in the pipe 1 6 6 (see FIGS. 8 and 9) in the container 100.

[0072] As shown in FIGS. 14 and 15, the punching metal 70 is cylindrical, and the central axis of the cylindrical punching metal 70 is substantially orthogonal to the central axis of the pipe 16 6. Have a relationship.

[0073] Since the punching metal 70 is interposed in the pipe 1 6 6, all the passages of the pipe 1 6 6 are not solidified with aluminum, and some of the holes in the punching metal 70 are clogged. It remains without. Therefore, this hole becomes a gas escape hole between the inside of the container 100 and the outside. Therefore, the molten aluminum is not unexpectedly ejected from the container 100 when the container 100 is closed.

[0074] Since the punching metal 70 is cylindrical, the surface area of the punching metal 70 can be increased with a simple configuration, and the possibility of clogging all the holes is extremely low. For example, the cylindrical punching metal 70 does not have a lid on the top and bottom, and can be configured by simply rounding a flat punching metal. Therefore, it is very easy to manufacture. The material of the punching metal 70 is, for example, copper.

[0075] Since the punching metal 70 is interposed under the swivel joint 180, the swivel joint 180 does not become clogged with aluminum and cannot be rotated. FIG. 16 is a cross-sectional view of a safety device according to still another embodiment of the present invention, FIG. 17 is a cross-sectional view taken along line A_A in FIG. 16, and FIG. 18 is an exploded view of the safety device shown in FIG. FIG. In these drawings, elements common to those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted.

The gas flow part 20 0 arranged in the pipe part 2 is inserted in the pipe part 2 so as to be detachable. A large number of tubes 20 2 are inserted into the pipe 20 1 so as to be bundled and integrated in the pipe. The material of the pipe 20 1 and the tube 2 0 2 may be stainless steel, for example. As a result, the safety device can be configured at a lower cost. In addition, by making the material of the tube 20 2 softer than the material of the pipe 2 0 1, for example, the material of the tube 2 0 2 is copper and the material of the pipe 2 0 1 is stainless steel, so that many tubes Even if 2 0 2 is inserted into the pipe 2 0 1 and integrated, the deformation of the pipe 2 0 1 can be reduced. As a result, the pipe 2 0 1 can be smoothly inserted into the pipe part 2, and the pipe 2 0 1 can be smoothly removed from the pipe part 2. Therefore, maintenance of the safety device can be performed more easily.

In the safety device 1 according to the present embodiment, it is possible to take out a large number of tubes 20 2 from the piping unit 2 simply by removing the piping 20 1 from the piping unit 2. As a result, the tube 20 2 can be easily replaced.

The present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the technical idea, and they are included in the scope of the claims.

FIG. 1 is a front view of a safety device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA in FIG.

FIG. 3 is a sectional view taken along the line B--B in FIG.

FIG. 4 is a cross-sectional view showing a configuration of a force bra.

FIG. 5 is a cross-sectional view (corresponding to FIG. 3) of a safety device according to another embodiment.

FIG. 6 is a diagram (part 1) for explaining the function and effect of the present invention. FIG. 7 is a diagram (part 2) for explaining the function and effect of the present invention.

FIG. 8 is a cross-sectional view showing a configuration of a container according to the present invention.

FIG. 9 is a plan view of FIG.

FIG. 11 is a cross-sectional view showing a configuration of a safety device according to still another embodiment of the present invention.

FIG. 12 is a side view of FIG.

FIG. 13 is a partial cross-sectional view showing a configuration of a container according to another embodiment of the present invention.

FIG. 14 is a plan view of FIG.

FIG. 15 is a side view of FIG.

FIG. 16 is a cross-sectional view of a safety device according to yet another embodiment of the present invention.

FIG. 17 is a cross-sectional view taken along line A_A in FIG.

FIG. 18 is an exploded view of the safety device shown in FIG.

Explanation of symbols

1 Safety device

2 Piping section

2 a 1st open end

2 b Second open end

3 a First removable part

3 b Second removable part

4 Gas distribution section

4 a Through hole

Claims

The scope of the claims

[1] Molten aluminum can be accommodated inside, a gas introduction part for pressurizing the inside is provided on the upper surface side, and there is a flow path from the inner bottom to the upper surface side, and a pipe communicating with this flow path. When the gas is introduced from the gas introduction part, the molten aluminum accommodated in the inside can be supplied to the outside through the flow path and the pipe, and the public road is mounted by a transport vehicle. A safety device used for containers that are transported to the use point

A pipe having a first open end and a second open end;

A first detachable part attached to the first open end side for enabling the piping part to be detachable from the gas introduction part;

A second detachable part attached to the second open end side for enabling the air hose for introducing gas to be detachable from the pipe part;

A gas passage disposed between the first open end and the second open end in the pipe, and between the first open end and the second open end. A gas flow part having a large number of through-holes each independently

A safety device comprising:

[2] The safety device according to claim 1,

The gas circulation part is a safety device composed of a number of tubes.

[3] The safety device according to claim 2,

The said tube is a safety device comprised from the member containing copper or copper.

[4] The safety device according to claim 2,

The tube is a safety device made of stainless steel.

[5] The safety device according to claim 2,

The plurality of tubes are inserted so as to be bundled in the pipe and integrated in the pipe.

The pipe is detachably inserted into the pipe section.

Safety device.

[6] The safety device according to claim 1, The gas flow part is a safety device configured from a sintered product in which the plurality of through holes are formed.

[7] The safety device according to claim 6,

The sintered product is a safety device composed of ceramics.

[8] The safety device according to claim 6,

The through hole is a safety device having a honeycomb cross section.

[9] The safety device according to claim 1,

The safety device, wherein an inner diameter of the through hole is 2 mm or more and 4 mm or less.

[10] The safety device according to claim 1,

The safety device having an inner diameter of the pipe portion of 25 mm or more and 4 O mm or less.

[1 1] The safety device, wherein a length of the pipe portion is 10 Om m or more and 30 Om m or less.

[12] The safety device according to claim 1,

The safety device, wherein the number of through holes is 10 or more and 30 or less.

[13] Molten aluminum can be accommodated in the interior, a gas introduction part for pressurizing the interior is provided on the upper surface side, and there is a flow path from the inner bottom to the upper surface side and piping communicating with this flow path. When the gas is introduced from the gas introduction part, the molten aluminum accommodated in the interior can be supplied to the outside through the flow path and the pipe, and the public road is mounted by a transport vehicle. A safety device used for containers that are transported to the use point

A pipe having a first open end and a second open end;

A screw-like gas is disposed between the first open end and the second open end in the pipe portion, and between the first open end and the second open end. A gas flow part having a member as a passage of

A safety device comprising:

[14] Molten aluminum can be accommodated in the interior, a gas introduction part for pressurizing the interior is provided on the upper surface side, and there is a flow path from the inner bottom to the upper surface side and piping communicating with this flow path. When the gas is introduced from the gas introduction part, the molten aluminum accommodated in the inside can be supplied to the outside through the flow path and the pipe, and the public road is mounted by a transport vehicle. A safety device used for containers that are transported to the use point

A pipe having a first open end and a second open end;

Punching metal disposed at a plurality of locations between the first open end and the second open end in the pipe portion;

A safety device comprising:

[15] Molten aluminum can be accommodated inside, a gas introduction part for pressurizing the inside is provided on the upper surface side, and there is a flow path from the inner bottom to the upper surface side, and a pipe communicating with this flow path. When the gas is introduced from the gas introduction part, the molten aluminum accommodated in the inside can be supplied to the outside through the flow path and the pipe, and the public road is mounted by a transport vehicle. Through the container to the use point

A pipe part having a first open end part and a second open end part; and attached to the first open end part side, for making the pipe part detachable from the gas introduction part A detachable component, disposed between the first open end and the second open end in the pipe portion, between the first open end and the second open end. A safety device having a gas flow part having a large number of through-holes each serving as a gas passage;

A molten aluminum supply system comprising:

[16] Molten aluminum can be accommodated in the interior, and the pressure to pressurize the interior The body introduction part is provided on the upper surface side, has a flow path from the inner bottom part to the upper surface side and a pipe communicating with the flow path, and is accommodated in the interior by introducing gas from the gas introduction part. Molten aluminum can be supplied to the outside through the flow path and the pipe, and is mounted by a transport vehicle and transported to a use point through a public road,

A pipe part having a first open end part and a second open end part; and attached to the first open end part side, for making the pipe part detachable from the gas introduction part A first detachable part; a second detachable part attached to the second open end side for enabling an air hose for introducing gas to be detachably attached to the pipe part; and A member that is disposed between the first open end and the second open end, and that has a screw-like gas passage between the first open end and the second open end. A safety device having a gas flow part having

A molten aluminum supply system comprising:

[17] Molten aluminum can be accommodated inside, a gas introduction part for pressurizing the inside is provided on the upper surface side, and there is a flow path from the inner bottom to the upper surface side, and a pipe communicating with this flow path. When the gas is introduced from the gas introduction part, the molten aluminum accommodated in the inside can be supplied to the outside through the flow path and the pipe, and the public road is mounted by a transport vehicle. Through the container to the use point

A pipe part having a first open end part and a second open end part; and attached to the first open end part side, for making the pipe part detachable from the gas introduction part A first detachable part; a second detachable part attached to the second open end side for enabling an air hose for introducing gas to be detachably attached to the pipe part; and A safety device having a punching metal disposed at a plurality of positions between a first open end and the second open end;

A molten aluminum supply system comprising:

[18] Molten aluminum can be accommodated in the interior, a gas introduction part for pressurizing the interior is provided on the upper surface side, a flow path from the inner bottom to the upper surface side, and the flow path A pipe communicating with the gas, and by introducing a gas from the gas introduction portion, the molten aluminum accommodated in the inside can be supplied to the outside via the flow path and the pipe. Is a container that is transported to a use point through public roads,

The gas introduction part has a gas introduction pipe provided on the upper surface of the container, and a punching metal is inserted in the gas introduction pipe.

[19] The container of claim 18,

The punching metal is cylindrical,

The central axis of the cylindrical punching metal is substantially perpendicular to the central axis of the gas introduction pipe.

Tani ¾.

[20] The container of claim 18,

The gas introduction pipe extends upward from the upper surface of the container and is bent in a horizontal direction at a predetermined position.

The upper extending portion has a member that can rotate the portion bent in the horizontal direction, and the punching metal is disposed below the member.