Efficient heat radiation heating area easy to replace

Abstract

The utility model discloses an efficient easy-to-replace thermal radiation heating zone in the technical field of coating furnaces, which comprises an outer fixing plate, the outer fixing plate is of an annular structure, the heating zone is arranged inside the outer fixing plate, the outer end surface of the outer fixing plate is fixedly connected with a wiring end, the inner wall of the outer fixing plate is provided with a ceramic fiber thermal insulation layer, and the outer end surface of the outer fixing plate is fixedly connected with the wiring end. The ceramic fiber heat preservation layer is annularly arranged, the ceramic fiber heat preservation layer and the outer fixing plate are distributed in a concentric circle mode, and heating wire hooks which are circumferentially distributed at equal intervals are fixedly connected to the inner wall of the ceramic fiber heat preservation layer; according to the scheme, through the structural arrangement of the heating wire hook and the heating wire, the heating wire is changed into an externally-hung structure in the heating area, the heating wire can be rapidly replaced from the interior of the furnace cavity after being damaged, the replacement time is only one third of the original time, and the replacement efficiency is greatly improved. And the heating wire is externally hung, so that the heating wire is closer to the reaction kettle to be heated, and the heating efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of coating furnaces, in particular to a highly efficient and easily replaceable heat radiation heating zone. Background Art

[0002] A coating furnace is a device used for surface coating treatment and is widely used in industrial production. By coating a layer of specific material on the surface of an object, a coating furnace can improve the surface performance of an object and enhance its wear resistance, corrosion resistance, thermal conductivity and other properties. The conventional heating block of a coating furnace has an operating voltage of 380V. Under the premise of meeting the design size and power, the heating wire is relatively long and thin. It needs to be wound and shaped before being embedded in the ceramic fiberboard. The operating condition is about 1000℃. The diameter of the heating wire is only about 3.5mm, and the many turning positions make it easy to break at the bends and the fully wrapped area of ​​the insulation layer. After breaking, the entire heating zone is scrapped, and the replacement of the heating zone takes a long time and has high technical requirements, which delays equipment production and causes significant economic losses. To this end, we propose an efficient and easy-to-replace thermal radiation heating zone. Utility Model Content

[0003] The purpose of the utility model is to provide a highly efficient and easily replaceable heat radiation heating area to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an efficient and easily replaceable thermal radiation heating zone, comprising an external fixing plate, the external fixing plate being arranged in an annular structure, the heating zone being arranged inside the external fixing plate, the outer end surface of the external fixing plate being fixedly connected with a terminal, a ceramic fiber thermal insulation layer being arranged on the inner wall of the external fixing plate, the ceramic fiber thermal insulation layer being arranged in an annular shape and being distributed in concentric circles with the external fixing plate, heating wire hooks being fixedly connected to the inner wall of the ceramic fiber thermal insulation layer in an equidistant circular distribution, the heating wire hooks being arranged in a plurality of groups and being distributed in two rows in an upper and lower manner, the upper and lower rows of the heating wire hooks being staggered, heating wires being wound and fixed on the surface of the heating wire hooks, the heating wires being staggered in sequence on the upper and lower rows of the heating wire hooks.

[0005] Preferably, the surface of the outer fixing plate is provided with hanging ears which are equidistantly distributed in a circumference.

[0006] Preferably, a thermal insulation blanket is installed on the upper end surface of the outer fixing plate.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: the heating wire hook and the heating wire structure are arranged in this scheme, so that the heating wire is changed to an external hanging structure in the heating zone, and the heating wire can be quickly replaced from the inside of the furnace cavity after being damaged, and the replacement time is only one-third of the original time, which greatly improves the replacement efficiency. In addition, the heating wire adopts an external hanging form, so that the heating wire is closer to the reactor to be heated, and the heating efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 It is a schematic top view of the structure of the utility model.

[0010] In the figure: 1. External fixing plate; 2. Lifting ear; 3. Ceramic fiber insulation layer; 4. Heating wire hook; 5. Heating wire; 6. Insulation blanket; 7. Wiring terminal. DETAILED DESCRIPTION

[0011] Example

[0012] See also Figure 1-2 , the utility model provides a technical solution:

[0013] An efficient and easily replaceable heat radiation heating zone, wherein the outer fixing plate 1 is arranged as an annular structure, and the heating zone is arranged inside the outer fixing plate 1. The surface of the outer fixing plate 1 is provided with lifting ears 2 which are distributed in equal distances in a circle, and the lifting ears 2 facilitate the lifting of the device, and further adjust the installation position of the heating zone. A ceramic fiber insulation layer 3 is arranged on the inner wall of the outer fixing plate 1, and the ceramic fiber insulation layer 3 is arranged in an annular shape and is distributed in concentric circles with the outer fixing plate 1, so as to further ensure the maintenance of the temperature inside the heating zone. The inner wall of the ceramic fiber insulation layer 3 is fixedly connected with heating wire hooks 4 which are distributed in equal distances in a circle, and the heating wire hooks 4 are arranged in a plurality of groups and are distributed in two rows in an upper and lower manner, and the upper and lower rows of heating wire hooks 4 are staggered. The surface of the heating wire hooks 4 is wound and fixed with heating wires 5, and the heating wires 5 are staggered in sequence on the upper and lower rows of heating wire hooks 4. By setting the structure of the heating wire hook 4 and the heating wire 5, the heating wire 5 is changed to an external hanging structure in the heating zone. When the heating wire 5 is damaged, it can be quickly replaced from the inside of the furnace cavity. The replacement time is only one third of the original time, which greatly improves the replacement efficiency. In addition, the heating wire 5 is in an external hanging form, so that the heating wire 5 is closer to the reactor to be heated, and the heating efficiency is higher.

[0014] The upper surface of the outer fixing plate 1 is provided with a heat preservation blanket 6 to further reduce the heat dissipation in the internal heating area of ​​the outer fixing plate 1. At the same time, the outer surface of the outer fixing plate 1 is fixedly connected with a terminal 7. By changing the working voltage to 115V, the heating wire length is shortened and the heating wire diameter is increased to 5mm while meeting the 10KW power requirement, and the average life of the heating wire can be doubled.

[0015] At the same time, the outer fixing plate 1 can be replaced with stainless steel material, so there is no need to apply high temperature resistant paint.

[0016] Through the above scheme, the device adopts the structural setting of external heating wire 5, so that the manufacturing process of the technical solution is simple, the heating block has a long service life and high heating efficiency.

Claims

1. An efficient and easily replaceable heat radiation heating zone, comprising an outer fixing plate (1), the outer fixing plate (1) being arranged as a ring-shaped structure, the heating zone being arranged inside the outer fixing plate (1), the outer end surface of the outer fixing plate (1) being fixedly connected with a terminal (7), Features: A ceramic fiber insulation layer (3) is provided on the inner wall of the outer fixing plate (1), the ceramic fiber insulation layer (3) is arranged in an annular shape and is distributed in a concentric circle with the outer fixing plate (1), the inner wall of the ceramic fiber insulation layer (3) is fixedly connected with heating wire hooks (4) distributed in an equidistant circle, the heating wire hooks (4) are arranged in a plurality of groups and are distributed in two rows, the upper and lower rows of the heating wire hooks (4) are staggered, the surfaces of the heating wire hooks (4) are wound and fixed with heating wires (5), the heating wires (5) are staggered in sequence on the upper and lower rows of the heating wire hooks (4).

2. A highly efficient and easily replaceable thermal radiation heating zone according to claim 1, Features: The surface of the outer fixing plate (1) is provided with hanging ears (2) which are distributed in a circumferential manner at equal distances.

3. A highly efficient and easily replaceable thermal radiation heating zone according to claim 1, Features: A thermal insulation blanket (6) is installed on the upper end surface of the outer fixing plate (1).

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