Nickel-chromium alloy ribbon heater for resistance furnace

Abstract

The utility model discloses a nichrome ribbon heater for a resistance furnace, which comprises a ribbon heater body, a mounting frame is arranged on the outer side of the ribbon heater body, connectors are fixedly connected to two ends of the ribbon heater body, fixing blocks are fixedly connected to the top and the bottom of each connector, one side of each connector abuts against one side of the inner wall of the mounting frame, and the other side of each connector abuts against one side of the inner wall of the mounting frame. Mounting blocks are fixedly connected to the top and the bottom of the mounting frame, a filter screen is slidably connected to the interior of the mounting frame, and a fixing assembly is arranged in the mounting frame and used for fixing the filter screen. According to the nickel-chromium alloy ribbon heater for the resistance furnace disclosed by the utility model, the fixing assembly is arranged, so that an operator can quickly and manually disassemble and replace the filter screen without using extra tools, the heat conduction efficiency of the ribbon heater body can be maintained by replacing or cleaning the blocked filter screen in time, and the normal work of equipment is ensured; and performance reduction caused by blockage of the filter screen is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance furnace technical field especially, it relates to a nickel chromium alloy electric heating band for resistance furnace. BACKGROUND

[0002] Resistance furnace is the electric furnace that joul heat generated by electric current through conductor is heat source, resistance furnace takes electricity as heat source, passes through electric heating element and converts electric energy into heat energy, and it is heated to metal in the furnace, and resistance furnace and flame ratio, heat efficiency is high, and can reach 50 80c / o, and thermal regime is easy to control, and labor condition is good, and furnace body life is long, and is suitable for the heating of the workpiece that requires more strictly, but the electric power consumption cost is high.

[0003] Nickel chromium alloy electric heating band is a heating element made of nickel (Ni) and chromium (Cr) alloy material, and is usually used as a heating body in an electric heating band or an electric heating tube. Its main components make it have good high temperature resistance, corrosion resistance and good resistance characteristics.

[0004] The patent document with the application number CN215420811U discloses a nickel-chromium alloy wire composite electric heating wire, which comprises an upper cover, a sound-absorbing cotton ring layer, a nickel-chromium alloy electric heating wire, and an insulating hollow column. The upper cover is connected with the lower cover through side buckles. The bottom of the inner insulating box is glued with two circular ring-shaped clamping strips. A nickel-chromium alloy electric heating wire is arranged between the two circular ring-shaped clamping strips. Another nickel-chromium alloy electric heating wire is arranged outside the circular ring-shaped clamping strip with a larger radius.

[0005] In use, the electric heating band template will adhere some impurities during heating, resulting in low heat conduction efficiency. The electric heating wire can prevent impurities or dust from entering the electric heating band by setting a shading metal mesh cover, so that the impurities or dust will be blocked on the shading metal mesh cover. However, since the shading metal mesh cover is fixed on the cover, it is not convenient to disassemble, thereby affecting the heat conduction efficiency and ultimately causing performance degradation. To solve the above problems, we have developed a nickel-chromium alloy electric heating band for resistance furnace. UTILITY MODEL CONTENTS

[0006] The utility model discloses a nickel chromium alloy electric heating band for resistance furnace, and improves the existing structure and defects, so as to achieve the purpose of better practical value.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides a nickel chromium alloy electric heating band for resistance furnace, including electric heating band body, the outside of electric heating band body is provided with mounting frame, both ends of electric heating band body all are fixedly connected with connecting head, the top and bottom of connecting head all are fixedly connected with fixed block, one side of connecting head and the one side of mounting frame inner wall are in contact, the top and bottom of mounting frame all are fixedly connected with mounting block, the inside of mounting frame is connected with filter screen, the inside of mounting frame is provided with fixed component, fixed component is used for fixing filter screen.

[0009] In a preferred scheme, the fixed component includes a housing fixedly connected equidistantly inside the mounting frame, one side of the housing in contact with one side of the filter screen.

[0010] In a preferred scheme, the fixed component further includes a container groove opened inside the housing, a connecting groove opened on one side of the inner wall of the container groove, a clamping block slidingly connected inside the container groove, a through groove opened on one side of the filter screen, the outer side of the clamping block slidingly connected inside the through groove, one side of the clamping block in contact with one side of the filter screen.

[0011] In a preferred scheme, the container groove is provided with a connecting rod on the inside, the outer side of the connecting rod slidingly connected with the inside of the clamping block, the outer side of the connecting rod provided with a spring.

[0012] In a preferred scheme, the clamping block is L-shaped, one side of the clamping block provided as an inclined surface.

[0013] In a preferred scheme, the fixed block and the mounting block are installed through bolts.

[0014] The nickel chromium alloy electric heating band for resistance furnace has the following advantages:

[0015] The fixed component can quickly install and dismount the filter screen, the operator can conveniently take down the filter screen for cleaning, thereby effectively removing accumulated impurities and dust, maintaining the heat conduction efficiency of the electric heating band, and effectively solving the problems of inconvenient maintenance and performance decline caused by the fixed metal screen cover. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of nickel chromium alloy electric heating band for resistance furnace of three-dimensional schematic view.

[0017] Figure 2 The utility model provides a kind of nickel chromium alloy electric heating band for resistance furnace of main view section view schematic view.

[0018] Figure 3 The utility model provides a kind of nickel chromium alloy electric heating band for resistance furnace of explosion schematic view.

[0019] Figure 4 The utility model provides a nickel chromium alloy electric heating band for resistance furnace Figure 2 The enlarged schematic view of the middle A.

[0020] In the drawing: 1, electric heating band body; 2, installation frame; 3, connecting head; 4, fixed block; 5, installation block; 6, filter screen; 7, shell; 8, containing groove; 9, connecting groove; 10, through groove; 11, clamping block; 12, connecting rod; 13, spring. Specific embodiments

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and indicated in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] The nickel chromium alloy electric heating band for resistance furnace disclosed by the utility model is mainly applied to the scene of the nickel chromium alloy electric heating band for resistance furnace.

[0023] With reference to Figures 1 to 4 A nickel chromium alloy electric heating band for resistance furnace, comprising: an electric heating band body 1, an installation frame 2 is arranged on the outer side of the electric heating band body 1, connecting heads 3 are fixedly connected to the two ends of the electric heating band body 1, fixed blocks 4 are fixedly connected to the top and the bottom of the connecting heads 3, the side of the connecting head 3 is in abutment with the side of the inner wall of the installation frame 2, installation blocks 5 are fixedly connected to the top and the bottom of the installation frame 2, a filter screen 6 is slidably connected in the installation frame 2, and a fixing assembly is arranged in the installation frame 2 and used for fixing the filter screen 6.

[0024] In the above technical scheme, considering that the electric heating wire passes through the setting of the ash shielding metal mesh cover to avoid impurities or dust from entering the electric heating band, so that the impurities or dust will be blocked on the ash shielding metal mesh cover, but since the ash shielding metal mesh cover is fixed on the cover, it is not convenient to disassemble, thereby affecting the heat conduction efficiency and finally causing performance decline. In order to solve such problems, the specific operation is as follows: the electric heating band body 1 is installed in the installation frame 2 through the fixing block 4, then the filter screen 6 is put into the installation frame 2, the filter screen 6 is fixed by using the fixing assembly, and finally the electric heating band body 1 is installed in the electric resistance furnace through the installation block 5. By setting the fixing assembly, the filter screen 6 can be quickly installed and disassembled, and the operator can conveniently take down the filter screen 6 for cleaning, so as to effectively remove the accumulated impurities and dust, maintain the heat conduction efficiency of the electric heating band, and effectively solve the problems of inconvenient maintenance and performance decline caused by the fixed ash shielding metal mesh cover.

[0025] With reference to Figures 1 to 4 In a preferred embodiment, the fixing assembly comprises a shell 7 which is fixedly connected at equal intervals inside the installation frame 2, and one side of the shell 7 abuts against one side of the filter screen 6. The fixing assembly further comprises a containing groove 8 which is formed in the inside of the shell 7, and a connecting groove 9 is formed in one side of the inner wall of the containing groove 8. A clamping block 11 is slidably connected inside the containing groove 8, and a through groove 10 is formed in one side of the filter screen 6. The outer side of the clamping block 11 is slidably connected with the inside of the through groove 10, and one side of the clamping block 11 abuts against one side of the filter screen 6. A connecting rod 12 is arranged inside the containing groove 8, the outer side of the connecting rod 12 is slidably connected with the inside of the clamping block 11, and a spring 13 is arranged on the outer side of the connecting rod 12. The clamping block 11 is in L-shaped shape, and one side of the clamping block 11 is arranged as an inclined surface.

[0026] In the above technical solution, considering that the existence of the heating wire through the setting of the shading metal mesh cover can avoid impurities or dust from entering the electric heating band, so that the impurities or dust will be blocked on the shading metal mesh cover, but since the shading metal mesh cover is fixed on the cover, it is not convenient to disassemble, thereby affecting the heat conduction efficiency and ultimately causing performance degradation. In order to solve such problems, the specific operation is as follows: when the filter screen 6 is blocked by impurities and dust, the clamping blocks 11 are manually moved one by one so that one side of the clamping blocks 11 is misaligned with the through slot 10, and the filter screen 6 can be disassembled for replacement or cleaning. Then, the new filter screen 6 is placed into the mounting frame 2, and the edge of the through slot 10 will abut against the inclined surface of the clamping block 11. Pressing the filter screen 6 will cause the clamping block 11 to be pushed away, and at this time the spring 13 will be compressed. One end of the clamping block 11 can pass through the through slot 10. When one side of the clamping block 11 is misaligned with the through slot 10, the clamping block 11 is pushed to one side under the rebounding action of the spring 13, so that one side of the clamping block 11 slides on the surface of the filter screen 6, thereby clamping the filter screen 6. Then, the filter screen 6 is installed in the mounting frame 2, so that the operator can quickly manually disassemble and replace the filter screen 6 without using additional tools. By timely replacing or cleaning the blocked filter screen 6, the heat conduction efficiency of the electric heating band body 1 can be maintained, the normal operation of the equipment can be ensured, and performance degradation caused by filter screen blockage can be avoided.

[0027] Referring to Figures 1 to 4 In a preferred embodiment, the fixing block 4 and the mounting block 5 are both installed by bolts. The electric heating band body 1 can be installed in the mounting frame 2 by bolts, and the mounting frame 2 can be installed in the resistance furnace.

[0028] Working principle: when the filter screen 6 is blocked by impurities and dust, the clamping blocks 11 are manually moved one by one so that one side of the clamping blocks 11 is misaligned with the through slot 10, and the filter screen 6 can be disassembled for replacement or cleaning. Then, the new filter screen 6 is placed into the mounting frame 2, and the edge of the through slot 10 will abut against the inclined surface of the clamping block 11. Pressing the filter screen 6 will cause the clamping block 11 to be pushed away, and at this time the spring 13 will be compressed. One end of the clamping block 11 can pass through the through slot 10. When one side of the clamping block 11 is misaligned with the through slot 10, the clamping block 11 is pushed to one side under the rebounding action of the spring 13, so that one side of the clamping block 11 slides on the surface of the filter screen 6, thereby clamping the filter screen 6. Then, the filter screen 6 is installed in the mounting frame 2, so that the operator can quickly manually disassemble and replace the filter screen 6 without using additional tools. By timely replacing or cleaning the blocked filter screen 6, the heat conduction efficiency of the electric heating band body 1 can be maintained, the normal operation of the equipment can be ensured, and performance degradation caused by filter screen blockage can be avoided.

[0029] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. A nickel-chromium alloy heating element for resistance furnaces, comprising a heating element body (1), characterized in that, The outer side of the electric heating band body (1) is provided with a mounting frame (2), both ends of the electric heating band body (1) are fixedly connected with a connecting head (3), the top and the bottom of the connecting head (3) are fixedly connected with a fixed block (4), one side of the connecting head (3) abuts against one side of the inner wall of the mounting frame (2), the top and the bottom of the mounting frame (2) are fixedly connected with a mounting block (5), the inside of the mounting frame (2) is slidably connected with a filter screen (6), and the inside of the mounting frame (2) is provided with a fixing assembly.

2. A nickel-chromium alloy heating element for an electric resistance furnace according to claim 1, characterized in that, The fixing assembly comprises a shell (7), the shell (7) is equidistantly fixedly connected in the inside of the mounting frame (2), and one side of the shell (7) abuts against one side of the filter screen (6).

3. The nickel-chromium alloy heating element for an electric resistance furnace according to claim 1, characterized by The fixing assembly further comprises a containing groove (8), the containing groove (8) is arranged in the inside of the shell (7), one side of the inner wall of the containing groove (8) is provided with a connecting groove (9), the inside of the containing groove (8) is slidably connected with a clamping block (11), one side of the filter screen (6) is provided with a through groove (10), the outer side of the clamping block (11) is slidably connected with the inside of the through groove (10), and one side of the clamping block (11) abuts against one side of the filter screen (6).

4. A nickel-chromium alloy heating element for an electric resistance furnace according to claim 3, characterized in that, The inside of the containing groove (8) is provided with a connecting rod (12), the outer side of the connecting rod (12) is slidably connected with the inside of the clamping block (11), and the outer side of the connecting rod (12) is provided with a spring (13).

5. A nickel-chromium alloy heating element for an electric resistance furnace according to claim 4, characterized in that, The clamping block (11) is in L-shaped, and one side of the clamping block (11) is provided as an inclined surface.

6. A nickel-chromium alloy strip for electric resistance furnace as claimed in claim 1, wherein, The fixed block (4) and the mounting block (5) are both installed through bolts.

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