Self-purification infusion tube

Abstract

The utility model relates to a heat preservation infusion tube with a self-purification function, a left section and a right section of the infusion tube are fixedly connected through a hollow infusion tube connector, and a filter screen with a flux interlayer is designed at the joint of the infusion tube and is fixed in the middle of the top of the infusion tube through the infusion tube connector. During working, openings of the two liquid conveying pipes are inserted into melt, the liquid conveying pipes are fixed to the two container sealing covers through bolts on the mounting flanges, a heating program of the liquid conveying pipes is started to reach the solvent melting temperature, heat preservation is conducted at the temperature, the melt is conveyed into a designated melt receiving container through the inner pipe channel and the solvent interlayer filter screen under the driving force of air pressure or a pump, and finally the melt is conveyed into the container. Liquid is conveyed through the inner pipe in a heat preservation mode, and a small amount of sucked unfused alloy or impurities are filtered and purified through the flux interlayer filter screen. The problem that the top of a traditional infusion tube is blocked and difficult to dredge can be solved only by regularly opening the infusion tube connector to replace the flux filter screen, and the infusion tube has the advantage of being convenient to replace.

Description

[Technical field]

[0001] The utility model relates to a liquid infusion tube with a self-purification function. The liquid infusion tube is mainly used in the fields of liquid heat preservation transportation and the like to provide high-quality metal liquid for casting equipment. [Background technology]

[0002] In casting production, it is necessary to pour pure molten metal with few impurities and stable pouring temperature into the mold.

[0003] At present, the transportation of molten metal for liquids that are not easy to oxidize usually adopts the manual carrying method, but for metals that are easy to oxidize, it is usually necessary to use a closed infusion tube with insulation function. However, during the melt transportation process, impurities and unmelted alloys are often transported, which reduces the quality of the molten liquid and even causes the infusion tube to be blocked and difficult to repair. Therefore, it is particularly necessary to develop an infusion tube with self-purification and easy cleaning to meet the infusion needs of alloys with high purity requirements. [Contents of the utility model]

[0004] The utility model aims at the deficiencies of the existing molten metal conveying device and develops a molten metal conveying device with a self-purification function and convenient dredging and maintenance.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows (see Figure 1 ), the infusion tube adopts an inner and outer layered design. During infusion, the inner tube channel forms a relatively closed channel for conveying high-temperature liquid, and a heating device and a thermal insulation layer are provided to heat and control the temperature during the transmission process. The infusion tube adopts a top heart-shaped pipeline structure. During infusion, impurities are filtered in the filter area with a flux interlayer, and unmelted alloy is refined under the action of the solvent. It is only necessary to open the infusion connector regularly, replace the filter with flux, and dredge the infusion tube, and the filtering and purification function of the infusion tube will be restored.

[0006] The liquid infusion tube designed by the utility model has a double-layer circular flat top structure. When conveying the melt, the sealing plate seals and separates the liquid supply source from the heating and insulation layer. Limiting rings are welded at the two ends of the outer tube. The liquid infusion tube is installed on the sealing cover of the melt container through a fixed flange to avoid corrosion of the outer shell and the installation materials between the inner and outer layers by the corrosive atmosphere of the melt or the high-temperature atmosphere.

[0007] A specific technical solution for implementing the utility model is:

[0008] A self-purifying infusion tube comprises an infusion tube connector (1), a filter screen with a flux interlayer (2), an outer tube (3), an inner tube (4), a heating coil (5), an outer tube limit ring (6), an inner tube protection sleeve (7), a sealing plate (8), an anti-blocking suction port (9), an infusion tube fixing flange (10), and an infusion tube outlet (11). The left and right sections of the infusion tube are fixedly connected by a hollow infusion tube connector (1), and the filter screen with a flux interlayer (2) is designed inside the infusion tube connection and fixed at the middle position of the top of the infusion tube by the infusion tube connector.

[0009] The infusion tube is composed of a double-layer structure of an inner and outer tube, an insulation layer is provided between the inner and outer tube layers, a heating coil (5) is wrapped around the inner tube, two ends of the outer tube (3) are welded with outer tube limit rings (6), a vertical section of the inner tube (4) is provided with a protective sleeve (7), the protective sleeve is installed on the bottom surface of the fixed flange (10) by welding, the inner tube (4) is welded and fixed by an inner tube sealing plate (8), when in operation, the anti-blocking suction port (9) is inserted into the middle and lower part of the liquid supply container, and the infusion tube outlet (11) is inserted into the middle and lower part of the receiving container.

[0010] The inner tube (4) and the inner hole of the infusion tube connector are connected by a pipe sleeve to ensure coaxiality, the filter screen with flux interlayer (2) is a multi-layer flux paddle stainless steel wire mesh, the anti-blocking suction port (9) is provided with an anti-blocking structure, and the infusion tube outlet (11) is the opening of the inner tube (4).

[0011] When the liquid infusion tube is installed, it is fixed to the container sealing cover by means of a fixing flange (10) and bolts, and the heating layer and the heat-insulating layer are isolated from the melt environment by means of a sealing plate (8).

[0012] Compared with the existing liquid conveying device, the utility model has the following effects:

[0013] 1. Use a detachable infusion tube connector to connect the left and right sections of the infusion tube. A single tube can be designed to be shorter, solving the problem that the flat top of the large-span infusion tube cannot be cleaned and dredged.

[0014] 2. The outer tube mounting flange is kept away from the molten metal atmosphere or high temperature atmosphere, which is beneficial to the protection of the outer shell, interlayer mounting materials and heating resistors.

[0015] 3. Impurities or unmelted alloys are filtered and purified in the filter, which is conducive to the transportation of high-quality molten metal. At the same time, the filter can be easily replaced.

Brief Description of the Drawings

[0016] Attached Figure 1 It is a new structural schematic diagram of this utility model.

[0017] In the figure: 1. Infusion tube connector 2. Filter screen with flux interlayer 3. Outer tube 4. Inner tube 5. Heating layer 6. Outer tube limit ring 7. Inner tube protection sleeve 8. Sealing plate 9. Anti-blocking suction port 10. Infusion tube fixing flange 11. Infusion tube outlet [Specific implementation method]

[0018] The utility model is further described below in conjunction with the accompanying drawings of the specification.

[0019] Attached Figure 1 The accompanying drawings of the embodiments are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiments of the utility model. The following technical solutions shown in the accompanying drawings are specific solutions of the embodiments of the present invention and are not intended to limit the scope of the invention claimed for protection. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, the terms "design", "fixed", and "connected" should be used in a broad sense, for example, fixed connection, detachable connection, integral connection, mechanical connection, electrical connection, direct connection, indirect connection through an intermediate medium, and internal communication between components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] A self-purifying infusion tube comprises an infusion tube connector (1), a filter screen with a flux interlayer (2), an outer tube (3), an inner tube (4), a heating coil (5), an outer tube limit ring (6), an inner tube protection sleeve (7), a sealing plate (8), an anti-blocking suction port (9), an infusion tube fixing flange (10), and an infusion tube outlet (11). The left and right sections of the infusion tube are fixedly connected by a hollow infusion tube connector (1), and the filter screen with a flux interlayer (2) is designed inside the infusion tube connection and fixed at the middle position of the top of the infusion tube by the infusion tube connector.

[0022] The infusion tube described in the utility model is composed of a double-layer structure of an inner and outer tube, an insulation layer is provided between the inner and outer tube layers, a heating coil (5) is wrapped around the inner tube, two ends of the outer tube (3) are welded with outer tube limit rings (6), a vertical section of the inner tube (4) is provided with a protective sleeve (7), and the protective sleeve is installed on the bottom surface of the fixed flange (10) by welding. When working, the anti-blocking suction port (9) is inserted into the middle and lower part of the liquid supply container, the infusion tube outlet (11) is inserted into the middle and lower part of the receiving container, and the inner tube (4) is fixed by welding through the inner tube sealing plate (8).

[0023] The inner tube (4) and the inner hole of the infusion tube connector of the utility model are connected by a pipe sleeve to ensure coaxiality, the filter screen (2) with a flux interlayer is a multi-layer flux-paddled stainless steel wire mesh, the anti-blocking suction port (9) is provided with an anti-blocking structure, and the infusion tube outlet (11) is the opening of the inner tube (4).

[0024] When the infusion tube of the utility model is installed, the infusion tube is fixed to the container sealing cover by means of a fixing flange (10) and bolts, and the heating layer and the heat-insulating layer are isolated from the melt environment by means of a sealing plate (8).

[0025] The working process of the utility model is as follows: the fixed flange (10) of the device is firmly placed on the sealing cover of the infusion container, and under the action of the controller, the heating power supply of the infusion tube is turned on to the melting temperature of the flux and kept warm. Under the action of pressure or pump suction, the melt at the liquid supply end enters the inner tube channel through the anti-blocking suction port, and after the impurities and unmelted alloy are filtered and purified at the filter screen (2), it passes through the outlet of the infusion tube and enters the static container for insulation and heating to be cast, thus realizing the insulation transportation of the melt after two filtrations and purifications. The infusion tube connector is opened regularly to replace the filter screen with flux and clear the inner tube, and the infusion tube is installed and reset for continued infusion.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-cleaning infusion tube, characterized in that: The invention comprises an infusion tube connector (1), a filter screen with a flux interlayer (2), an outer tube (3), an inner tube (4), a heating coil (5), an outer tube limiting ring (6), an inner tube protection sleeve (7), a sealing plate (8), an anti-blocking suction port (9), an infusion tube fixing flange (10), and an infusion tube outlet (11). The left and right sections of the infusion tube are fixedly connected through a hollow infusion tube connector (1). The filter screen with a flux interlayer (2) is designed inside the infusion tube connection and is fixed at the middle position of the top of the infusion tube by the infusion tube connector.

2. A self-cleaning infusion tube according to claim 1, characterized in that: The infusion tube is composed of a double-layer structure of an inner and outer tube, an insulation layer is provided between the inner and outer tube layers, a heating coil (5) is wrapped around the inner tube, two ends of the outer tube (3) are welded with outer tube limit rings (6), a vertical section of the inner tube (4) is provided with a protective sleeve (7), the protective sleeve is installed on the bottom surface of the fixed flange (10) by welding, the inner tube (4) is welded and fixed by an inner tube sealing plate (8), when in operation, the anti-blocking suction port (9) is inserted into the middle and lower part of the liquid supply container, and the infusion tube outlet (11) is inserted into the middle and lower part of the receiving container.

3. A self-cleaning infusion tube according to claim 1, characterized in that: The inner tube (4) and the inner hole of the infusion tube connector are connected by a pipe sleeve to ensure coaxiality, the filter screen with flux interlayer (2) is a multi-layer flux paddle stainless steel wire mesh, the anti-blocking suction port (9) is provided with an anti-blocking structure, and the infusion tube outlet (11) is the opening of the inner tube (4).

4. The self-cleaning infusion tube according to claim 1, characterized in that: During installation, the liquid delivery pipe is fixed to the container sealing cover through a fixing flange (10) and bolts, and the heating layer and the heat-insulating layer are isolated from the melt environment through a sealing plate (8).

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