melt duct
By installing a water-cooled induction heating device and a cooling sleeve on the melt pipeline, the problems of large heat loss and high material heat resistance in the prior art are solved, and efficient melt flow control and economic improvement are achieved.
Patent Information
- Application Number
- CN202423046084.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, when using melt pipes to transport high-temperature molten metal or slag fluid, there are problems such as large heat loss and high requirements for the heat resistance of materials, especially when resistance heating elements and valves are used to control the flow of the melt.
A melt switching device employing a water-cooled induction heating device and a cooling sleeve heats the melt in the conductive refractory material channel through a water-cooled induction coil and uses cooling water to cut off the melt flow, thereby reducing heat loss and lowering the material performance requirements.
It achieves efficient melt flow control, reduces heat loss and material heat resistance requirements, and improves economic efficiency.
Smart Images
Figure CN223595399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metallurgical technology, and more specifically, to a melt pipeline. Background Technology
[0002] In industrial applications, especially in metal smelting processes, controlling the flow and cut-off of high-temperature melts (such as liquid metal or slag fluid) in pipelines is a common problem in the transportation of high-temperature melts.
[0003] Currently, in order to keep the high-temperature liquid metal or molten slag fluid in the pipeline in a flowing state and avoid pipeline blockage, the common method is to heat the pipeline wall with a conventional resistance heating element, and use the pipeline wall to transfer heat to the fluid in the pipeline, so as to raise the temperature of the fluid in the pipe and thus keep it flowing. The way to control the flow state of the molten fluid in the pipeline is to install valves on the pipeline to meet the requirements of the high-temperature liquid metal or molten slag fluid transportation project.
[0004] In the above-mentioned flow control scheme for hot melt in the pipeline, when the resistance heating element directly heats the melt pipeline, the heat loss on the outside of the resistance heating element is large. Moreover, the flow and cut-off state of the high-temperature melt in the pipeline are controlled by the resistance heating element and valves, which requires high heat resistance of the materials of the resistance heating element and valves. Therefore, the scheme of controlling the fluid by resistance heating and valve opening and closing is usually difficult to implement economically due to problems such as materials, structure and condensation.
[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0006] In view of the above problems, the purpose of this utility model is to provide a melt pipeline to solve the problems of the existing technology, which requires the installation of a resistance heating element on the outer wall of the melt pipeline and the installation of a valve on the pipeline to control the flow state of the melt in the melt pipeline by opening and closing the valve. This solution has problems such as large heat loss and high requirements for the heat resistance of the material.
[0007] This utility model provides a melt pipeline, including a sealed pipeline, on which a melt switch device is provided, wherein...
[0008] The melt switching device includes a water-cooled induction heating device, a conductive refractory material channel, and a cooling sleeve; wherein...
[0009] The water-cooled induction heating device includes a water-cooled induction coil arranged around the outside of the sealed pipe;
[0010] The conductive refractory material channel is arranged inside the sealed pipe; a melt channel is formed inside the conductive refractory material channel;
[0011] The cooling sleeve is arranged on the sealed pipe and located at the side end of the water-cooled induction coil; a sleeve water inlet and a sleeve water outlet are arranged at two ends of the cooling sleeve respectively;
[0012] An outer thermal insulation material layer is arranged between the water-cooled induction coil and the outer side wall of the sealed pipe.
[0013] In addition, preferably, the cooling sleeve is arranged close to any one end or both ends of the water-cooled induction coil.
[0014] In addition, preferably, a water-cooled channel is arranged on the water-cooled induction coil; a channel water inlet and a channel water outlet are arranged on the water-cooled channel.
[0015] In addition, preferably, the conductive refractory material channel is arranged in the middle of the sealed pipe.
[0016] In addition, preferably, an inner thermal insulation material layer is arranged between the outer side wall of the conductive refractory material channel and the inner side wall of the sealed pipe.
[0017] In addition, preferably, the inner thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer and carbon felt or at least two combined in any order.
[0018] In addition, preferably, the outer thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer and carbon felt or at least two combined in any order.
[0019] In addition, preferably, the sealed pipe is a non-magnetic sealed metal pipe.
[0020] In addition, preferably, the sealed pipe is a non-magnetic sealed steel pipe.
[0021] In addition, preferably, the conductive refractory material channel is a graphite channel or other conductive refractory material pipe.
[0022] From the above technical solutions, it can be seen that the melt pipe provided by the utility model controls the melt flow state in the pipe by installing a melt switch device on the sealed pipe, so that the water-cooled induction coil arranged outside the sealed pipe is in an electrified state, the conductive refractory material channel and the melt in the melt channel are heated, so that the melt is in a flowing state, and the electromagnetic heating mode is used, so that the heat efficiency is high and the heat loss is small.
[0023] When it is needed to cut off the melt in the flow state inside the sealed pipeline, the water-cooled induction coil is powered off, and cooling water is supplied to the cooling jacket to rapidly cool the electrically conductive refractory material channel and the melt in the melt channel, so that the melt solidifies to cut off the flow in the pipeline. Compared with the prior art that uses a valve to control the flow state of the melt, the material performance requirement is low, and the economy is high. BRIEF DESCRIPTION OF DRAWINGS
[0024] Other objects and advantages of the present application will become more apparent upon reading the following description of the embodiments with reference to the accompanying drawings, in which:
[0025] Figure 1 is a structural schematic view of a melt pipeline according to an embodiment of the present application;
[0026] Figure 2 is a position setting schematic view of a cooling jacket according to an embodiment of the present application;
[0027] Figure 3 is another position setting schematic view of a cooling jacket according to an embodiment of the present application;
[0028] Figure 4 is a flowchart of using a melt pipeline according to an embodiment of the present application to transport melt.
[0029] In the drawings, 1 is a sealed pipeline, 2 is a water-cooled induction coil, 3 is an electrically conductive refractory material channel, 31 is a melt channel, 4 is a melt, 5 is an outer heat insulation material layer, 6 is a cooling jacket, and 7 is an inner heat insulation material layer.
[0030] The same reference numbers in all the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION
[0031] In the following description, for the purpose of providing a comprehensive understanding of one or more embodiments, numerous specific details are set forth. It should be apparent, however, that these embodiments can be practiced in
[0032] For the prior art mentioned above, when a melt pipeline is used to transport metal melt, an electric resistance heater needs to be arranged on the outer wall of the melt pipeline, and a valve needs to be arranged on the pipeline to control the flow state of the melt in the melt pipeline by opening and closing the valve. This scheme has problems of large heat loss and high requirement for material heat resistance, and a melt pipeline is proposed.
[0033] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0034] To illustrate the melt pipeline provided by the present application,Figure 1 The structure of the melt pipeline according to the embodiment of the utility model is shown; Figure 2 The position of the cooling jacket according to the embodiment of the utility model is shown; Figure 3 Another position of the cooling jacket according to the embodiment of the utility model is shown; Figure 4 The flow of conveying the melt by using the melt pipeline according to the embodiment of the utility model is shown.
[0035] As Figures 1 to 3 The melt pipeline provided by the utility model is shown, which comprises a sealed pipeline 1, a melt switch device is arranged on the sealed pipeline 1, wherein,
[0036] The melt switch device comprises a water-cooled induction heating device, a conductive refractory material channel 3 and a cooling jacket 6; wherein,
[0037] The water-cooled induction heating device comprises a water-cooled induction coil 2 arranged around the outer side of the sealed pipeline 1;
[0038] The conductive refractory material channel 3 is arranged inside the sealed pipeline 1; a melt channel 31 is formed inside the conductive refractory material channel 3;
[0039] The cooling jacket 6 is arranged on the sealed pipeline 1 and located at the side end of the water-cooled induction coil 2; a jacket water inlet and a jacket water outlet are respectively arranged at the two ends of the cooling jacket 6;
[0040] An outer thermal insulation material layer 5 is arranged between the water-cooled induction coil 2 and the outer side wall of the sealed pipeline 1.
[0041] The outer side of the melt pipeline 1 is heat-insulated by the outer thermal insulation material layer 5, so that the temperature of the outer part of the melt pipeline 1 will not be too high.
[0042] It should be noted that the melt switch device in the utility model can be installed on a certain section of the sealed pipeline 1 according to actual needs, so as to control the flow state of the melt in the section of the sealed pipeline, or a plurality of melt switch devices can be arranged on the sealed pipeline 1 at intervals, and the flow state of the melt in the plurality of sections of the sealed pipeline can be controlled differently according to the needs of the melt conveying project, and the utility model does not make special limitation on this.
[0043] The water-cooled induction coil 2 arranged outside the sealed pipeline 1 is powered on to heat the electrically conductive refractory material channel 3 and the melt 4 in the melt channel 31, so that the melt 4 is in a flowing state, and the electromagnetic heating method has high thermal efficiency and low heat loss; when it is necessary to cut off the melt 4 in the sealed pipeline 1 in a flowing state, the water-cooled induction coil 2 is powered off, and cooling water is supplied to the cooling sleeve 6, so that the electrically conductive refractory material channel 3 and the melt 4 in the melt channel 31 are rapidly cooled, and the melt 4 is solidified to cut off the flow in the pipeline, compared with the prior art, the valve is used to control the melt flow state, the material performance requirement is low, and the economy is high.
[0044] As a preferred scheme of the utility model, the cooling sleeve 6 is arranged at any one end or both ends close to the water-cooled induction coil 2.
[0045] It should be noted that the cooling sleeve 6 can be arranged at the rear end of the water-cooled induction coil 2, as shown in Figure 2 , or can be arranged at the front end of the water-cooled induction coil 2, as shown in Figure 3 . Two cooling sleeves 6 can also be arranged, that is, a cooling sleeve 6 is arranged at each end of the water-cooled induction coil 2 to cool the electrically conductive refractory material channel 3 and the melt 4 in it and accelerate the cooling speed.
[0046] As a preferred scheme of the utility model, a water-cooled channel is arranged on the water-cooled induction coil 2; a channel water inlet and a channel water outlet are arranged on the water-cooled channel.
[0047] It should be noted that the water-cooled channel can be arranged inside the water-cooled induction coil 2 or on one side of the water-cooled induction coil 2, which is not particularly limited by the application. The cooling water flowing from the channel water inlet flows along the water-cooled channel to cool the water-cooled induction coil 2. The cooling sleeve 6 and the water-cooled induction coil 2 can be connected to the same cooling water source or can be provided with independent water sources, which is not particularly limited by the application.
[0048] As a preferred scheme of the utility model, the electrically conductive refractory material channel 3 is arranged in the middle of the sealed pipeline 1.
[0049] The electrically conductive refractory material channel 3 is arranged in the middle of the sealed pipeline 1, so that the overall structure is more rationalized, and the melt 4 in the melt channel 31 is heated more uniformly.
[0050] As a preferred scheme of the utility model, an inner thermal insulation material layer 7 is arranged between the outer side wall of the electrically conductive refractory material channel 3 and the inner side wall of the sealed pipeline 1.
[0051] The inner thermal insulation material layer 7 insulates the inner side of the sealed pipeline 1 from the heat generated by the heating of the electrically conductive refractory material channel 3.
[0052] As a preferred scheme of the utility model, the inner thermal insulation material layer 7 is any one or at least two kinds combined in any order of glass fiber layer, stone wool layer, rock wool layer, silicate layer and carbon felt.
[0053] As a preferred scheme of the utility model, the outer thermal insulation material layer is any one or at least two kinds combined in any order of glass fiber layer, stone wool layer, rock wool layer, silicate layer and carbon felt.
[0054] It should be noted that the inner thermal insulation material layer 7 and the outer thermal insulation material layer 5 are preferably but not limited to any one or at least two kinds combined in any order of glass fiber layer, stone wool layer, rock wool layer, silicate layer and carbon felt, and the utility model does not make special limitation to this.
[0055] As a preferred scheme of the utility model, the sealed pipeline 1 is a non-magnetic sealed metal pipe.
[0056] It should be noted that the sealed pipeline 1 in the utility model is preferably a non-magnetic sealed metal pipe, which has small eddy current loss under the condition that the water-cooled induction coil 2 is in water and power on, and the non-magnetic sealed metal pipe has good high-temperature stability.
[0057] As a preferred scheme of the utility model, the sealed pipeline 1 is a non-magnetic sealed steel pipe.
[0058] The sealed pipeline 1 is preferably but not limited to a non-magnetic sealed steel pipe, which has small eddy current loss under the condition that the water-cooled induction coil 2 is in internal no water and power on, makes the water-cooled induction coil 2 have good heating effect on the electrically conductive refractory material passage 3, and the non-magnetic sealed steel pipe has good high-temperature stability.
[0059] As a preferred scheme of the utility model, a power supply (not shown in the figure) is connected to the water-cooled induction coil 2. The power supply supplies power to the water-cooled induction coil 2.
[0060] As a preferred scheme of the utility model, the electrically conductive refractory material passage 3 is a graphite passage.
[0061] It should be noted that the electrically conductive refractory material passage 3 is preferably but not limited to a graphite passage, and the water-cooled induction coil 2 has better heating effect.
[0062] The process for conveying the melt by using the melt pipeline provided by the utility model includes the following steps:
[0063] Step S1, the melt 4 to be conveyed is introduced into the inside of the melt passage 31 from the inlet of the sealed pipeline 1;
[0064] Step S2, according to the flow and cutting requirements set by the melt conveying project, the melt switch device is used to control the flow and cutting of the melt 4 in the melt channel 31 until the melt pipe completes the conveying of the melt 4; wherein,
[0065] When it is needed to make the melt 4 in the melt channel 31 in a flow state, the inside of the cooling jacket is in a water-off state, and the water-cooled induction coil 2 is in an energized state to heat the conductive refractory material channel 3 and the melt 4 in the melt channel 31, so that the melt 4 is in a flow state in the melt channel 31;
[0066] When it is needed to cut off the melt 4 in the melt channel 31 in a flow state, the water-cooled induction coil 2 is in a de-energized state, and the cooling water in the cooling jacket is used to cool the sealing pipe 1, so that the conductive refractory material channel 3 is cooled, and the melt 4 in the melt channel 31 in a flow state is rapidly cooled and solidified to achieve the cutting of the melt 4.
[0067] As can be seen from the above specific embodiments, the melt pipe provided by the utility model, by installing the melt switch device on the sealing pipe, the flow state of the melt in the pipe is controlled, the water-cooled induction coil arranged outside the sealing pipe is in an energized state, the conductive refractory material channel and the melt in the melt channel are heated, so that the melt is in a flow state, the electromagnetic heating method has high heat efficiency and less heat loss; when it is needed to cut off the melt in the sealing pipe in a flow state, the water-cooled induction coil is in a de-energized state, and cooling water is introduced into the cooling jacket, so that the conductive refractory material channel and the melt in the melt channel are rapidly cooled, the melt is solidified to achieve the purpose of cutting off the flow in the pipe, compared with the prior art, the valve is used to control the flow state of the melt, the material performance requirement is low, and the economy is high.
[0068] The melt pipe according to the utility model is described above with reference to the drawings in an exemplary manner. However, those skilled in the art should understand that various improvements can be made to the melt pipe according to the utility model described above without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the appended claims.
Claims
1. A melt duct comprising a sealed duct, characterised in that, A melt switch device is arranged on the sealed pipeline, wherein The melt switch device comprises a water-cooled induction heating device, a conductive refractory material channel and a cooling jacket; wherein The water-cooled induction heating device comprises a water-cooled induction coil arranged outside the sealed pipeline; The conductive refractory material channel is arranged inside the sealed pipeline; a melt channel is formed inside the conductive refractory material channel; The cooling jacket is arranged on the sealed pipeline and located at the side end of the water-cooled induction coil; a jacket water inlet and a jacket water outlet are arranged at both ends of the cooling jacket, respectively; An outer thermal insulation material layer is arranged between the water-cooled induction coil and the outer sidewall of the sealed pipeline.
2. The melt pipeline according to claim 1, wherein The cooling jacket is arranged at any one end or both ends of the water-cooled induction coil.
3. The melt pipeline according to claim 1, wherein A water-cooled channel is arranged on the water-cooled induction coil; A channel water inlet and a channel water outlet are arranged on the water-cooled channel.
4. The melt pipeline according to claim 1, wherein The conductive refractory material channel is arranged in the middle of the sealed pipeline.
5. The melt pipeline according to claim 1, wherein An inner thermal insulation material layer is arranged between the outer sidewall of the conductive refractory material channel and the inner sidewall of the sealed pipeline.
6. The melt pipeline according to claim 5, wherein The inner thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer and a carbon felt, or at least two of them combined in any order.
7. The melt pipeline according to claim 1, wherein The outer thermal insulation material layer is any one of a glass fiber layer, an asbestos layer, a rock wool layer, a silicate layer and a carbon felt, or at least two of them combined in any order.
8. The melt pipeline according to claim 1, wherein The sealed pipeline is a non-magnetic sealed metal pipe.
9. The melt pipeline according to claim 8, wherein The sealed pipeline is a non-magnetic sealed steel pipe.
10. The melt pipeline according to claim 1, wherein The conductive refractory material channel is a graphite channel.