High-temperature kiln
By adopting an internal lining structure and slag removal components in the high-temperature kiln, the problems of heat loss and manual slag removal were solved, resulting in improved thermal efficiency, extended service life, and enhanced safety, thus ensuring stable operation of the kiln and product quality.
Patent Information
- Application Number
- CN202422941571.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-30
AI Technical Summary
Existing high-temperature kilns have problems such as increased heat loss, shortened furnace shell life, unstable smelting space and high safety risks in their design. In addition, manual slag removal is time-consuming, labor-intensive and has safety hazards.
It adopts an internal lining structure design, including an outer protective layer, an intermediate heat insulation layer and an inner working layer. Combined with the slag discharge assembly, it uses a sloping base and push plate structure to achieve automatic slag discharge, reduce heat loss and reduce manual intervention.
It effectively reduces heat loss, extends kiln life, improves the operating environment, enhances production efficiency and safety, and ensures uniform temperature inside the kiln and product quality.
Smart Images
Figure CN223500117U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high-temperature kiln technology, and specifically relates to a high-temperature kiln. Background Technology
[0002] Kilns, as an important component of human civilization, have a history dating back to ancient times. From open-air firing and pit firing in primitive societies to later round kilns with rising flames (shaped like steamed buns), horseshoe-shaped kilns with semi-downdraft flames, semi-slope dragon kilns, and egg-shaped kilns, and then to modern indoor gas kilns and electric kilns, kiln technology has continuously improved and developed. These historical evolutions not only reflect humanity's mastery of high-temperature technology but also demonstrate the diversity of kiln designs under different cultural backgrounds. With the development of science and technology, kiln technology has also continuously progressed. For example, in 1794, a straight-cylinder cupola furnace for melting cast iron appeared; in 1864, the Frenchman Martin used the principle of regenerative furnaces to build a steelmaking open-hearth furnace heated by gaseous fuels; and around 1900, with sufficient electricity supply, various resistance furnaces, electric arc furnaces, and cored induction furnaces began to be used. In the 1950s, coreless induction furnaces developed rapidly, and later electron beam furnaces appeared. These technological advancements have greatly promoted the development of high-temperature kilns.
[0003] However, in the design of high-temperature kilns, if only an outer protective layer and insulation layer are installed, heat may be transferred more directly to the furnace shell, leading to increased heat loss. This can result in problems such as increased heat loss, shortened furnace shell life, unstable smelting space, and increased safety risks. Furthermore, high-temperature kilns generate a large amount of slag during operation, which contains heat. Currently, the common practice is to manually remove this slag after the furnace body has cooled down. This operation is time-consuming, labor-intensive, requires manual intervention, and poses certain safety hazards. Therefore, providing a high-temperature kiln that can reduce heat loss and minimize manual slag removal is a crucial technical problem that this invention aims to solve. Utility Model Content
[0004] In view of this, the present invention discloses a high-temperature kiln.
[0005] To achieve the above objectives, the technical solution adopted by this utility model for a high-temperature kiln is as follows:
[0006] A high-temperature kiln includes a kiln body, an inner lining structure provided on the kiln body, and a slag discharge assembly provided at the bottom of the kiln body.
[0007] The inner lining structure includes an outer protective layer, an intermediate heat insulation layer, an inner working layer, and a lining, which are installed sequentially from the outside to the inside on the furnace body.
[0008] The slag discharge assembly includes a slag discharge chamber installed at the bottom of the furnace body, a filter plate disposed above the slag discharge chamber, and a slag outlet installed on the furnace body on one side of the slag discharge chamber. A pusher plate is disposed on the furnace body outside the slag outlet.
[0009] Furthermore, the outer protective layer is made of refractory bricks, the middle heat insulation layer is made of fiber felt, the inner working layer is made of high alumina bricks, and the lining is made of heat-insulating ceramic fiber board.
[0010] Furthermore, the bottom plate of the slag discharge chamber includes a first sub-plate and a second sub-plate fixedly connected. The first sub-plate and the second sub-plate are symmetrically arranged, and the included angle formed by the connection of the first sub-plate and the second sub-plate is less than 180°. The included angle between the first sub-plate and the second sub-plate and the side wall of the furnace body where the slag discharge port is located is less than 90°.
[0011] Furthermore, the furnace body is provided with a first limiting groove and a second limiting groove at the top and bottom of the outer side of the slag outlet, respectively. The top and bottom of the push plate are respectively engaged and slid within the first limiting groove and the second limiting groove. A handle is installed on the outer side of the push plate.
[0012] Furthermore, a limiting plate is fixed on the upper side of the slag discharge chamber inside the furnace body, and a rectangular opening is provided in the middle of the limiting plate; the filter plate is a flip-up structure that is rotatably hinged on one side to the rectangular opening of the limiting plate.
[0013] Furthermore, a positioning plate is also installed on the filter plate. One end of the positioning plate is fixed to the filter plate, and the other end of the positioning plate is convex. The convex part of the positioning plate is in contact with the upper surface of the limiting plate. Multiple handles are installed on the filter plate near the positioning plate.
[0014] The beneficial effects of this utility model are as follows:
[0015] Improving thermal efficiency: The design of the intermediate insulation layer and inner working layer effectively reduces heat loss, thus increasing the kiln's thermal efficiency. Extending service life: The outer protective layer and lining protect the kiln's outer shell from high temperatures and chemical corrosion, extending its service life. The refractory lining resists mechanical, thermal, and chemical corrosion during the smelting process, protecting the furnace shell and other metal structures. Improving the working environment: The insulation layer reduces the external temperature of the kiln, improving the working environment for operators and reducing discomfort and injury caused by high temperatures. Improving product quality: The design of the inner working layer ensures the uniformity and stability of the internal temperature of the kiln, thereby improving product quality and output.
[0016] The slag removal assembly is designed to facilitate slag removal during furnace operation, reducing the need for manual intervention and improving production efficiency. Manual slag removal is not only labor-intensive but also poses certain safety hazards. The steep-slope base allows the slag to fall off automatically, avoiding direct contact with hot materials and improving operational safety, even in high-temperature and harsh environments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall design of this utility model.
[0018] Figure 2 This is a schematic diagram of the base of this utility model.
[0019] Figure 3 This is a cross-sectional view of the present invention.
[0020] Figure 4 This is a schematic diagram of the slag discharge component of this utility model.
[0021] Figure 5 This is a schematic diagram of the slag discharge assembly of this utility model (without filter plate and limiting plate).
[0022] The attached diagram shows: 1: outer protective layer, 2: intermediate heat insulation layer, 3: inner working layer, 4: lining, 5: slag discharge chamber, 6: filter plate, 7: slag outlet, 8: push plate, 9: bottom plate, 10: first dividing plate, 11: second dividing plate, 12: first limiting groove, 13: second limiting groove, 14: limiting plate, 15: rectangular opening, 16: positioning plate. Detailed Implementation
[0023] To further illustrate the technical means and effects of this utility model in order to achieve its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0024] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate.
[0025] It should be noted that, in this application, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0026] like Figure 1-5As shown, a high-temperature kiln includes a furnace body, an inner lining structure, and a slag discharge assembly at the bottom of the furnace body.
[0027] The inner lining structure includes an outer protective layer 1, an intermediate heat insulation layer 2, an inner working layer 3, and a lining 4, which are installed sequentially from the outside to the inside of the furnace body. The outer protective layer 1 is made of refractory bricks, the intermediate heat insulation layer 2 is made of fiber felt, the inner working layer 3 is made of high-alumina bricks, and the lining 4 is made of heat-insulating ceramic fiberboard.
[0028] The slag discharge assembly includes a slag discharge chamber 5 installed at the bottom of the furnace body, a filter plate 6 disposed above the slag discharge chamber 5, and a slag outlet 7 installed on the furnace body on one side of the slag discharge chamber 5. A pusher plate 8 is disposed on the furnace body outside the slag outlet 7. In this embodiment, the bottom of the slag outlet 7 is also inclined to prevent residue from accumulating at the slag outlet 7.
[0029] The bottom plate 9 of the slag discharge chamber 5 is designed with a slope, which includes a first plate 10 and a second plate 11 welded together on one side. The first plate 10 and the second plate 11 are symmetrically arranged, and the included angle formed by the connection of the first plate 10 and the second plate 11 is less than 180°. The included angle between the first plate 10 and the second plate 11 and the side wall of the furnace body where the slag outlet 7 is located is less than 90°. The above structure makes any position in the bottom plate 9 of the slag discharge chamber 5 higher than the slag outlet 7. When the residue falls from the filter holes of the filter plate 6 onto the bottom plate 9, it will move to the slag outlet 7 under the action of gravity, push the push plate 8, and the residue can be discharged from the slag outlet 7 by itself.
[0030] On the outside of the furnace body, a first limiting groove 12 and a second limiting groove 13 are respectively provided at the top and bottom of the slag outlet 7. The top and bottom ends of the push plate 8 are respectively engaged and slid within the first limiting groove 12 and the second limiting groove 13. A handle is installed on the outside of the push plate 8. When slag needs to be discharged, a rod with a hook can be used. The hook hooks onto the handle of the push plate 8, and then it can be pulled to one side. Because the temperature inside the high-temperature kiln is high, the undried residue is dangerous. In this embodiment, a rod is used to move the push plate 8. It should be noted that the length of the first limiting groove and the second limiting groove is at least twice the length of the push plate 8, so that the movement of the push plate 8 in the first limiting groove and the second limiting groove can completely expose the slag outlet 7.
[0031] A limiting plate 14 is fixed on the upper side of the slag discharge chamber 5 on the furnace body, and a rectangular opening 15 is provided in the middle of the limiting plate 14. The filter plate 6 is a flip structure that is rotatably hinged to the limiting plate 14 on one side. A positioning plate 16 is also installed on the filter plate 6. One end of the positioning plate 16 is fixed to the filter plate 6, and the other end of the positioning plate 16 is convex, and the convex part of the positioning plate 16 is in contact with the upper surface of the limiting plate 14. Multiple handles are installed on the filter plate 6 near the positioning plate 16. After the high-temperature kiln has completely cooled down, if it is necessary to completely clean the slag discharge chamber 5, one can stand at the entrance of the furnace body and pull the filter plate 6 by contacting the handles to flip the filter plate 6 so that the slag discharge chamber 5 is fully visible. Tools can then be used for further cleaning. During the cleaning process, the push plate 8 can be opened to sweep out the remaining impurities in the slag discharge chamber 5 from the slag outlet 7. The positioning plate 16 limits the filter plate 6 to prevent the filter plate 6 from tilting and falling into the slag discharge chamber 5.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A high-temperature kiln, comprising a kiln body, characterized in that, The furnace body is provided with an inner lining structure, and the bottom of the furnace body is provided with a slag discharge assembly. The inner lining structure includes an outer protective layer, an intermediate heat insulation layer, an inner working layer, and a lining, which are installed sequentially from the outside to the inside on the furnace body. The slag discharge assembly includes a slag discharge chamber installed at the bottom of the furnace body, a filter plate disposed above the slag discharge chamber, and a slag outlet installed on the furnace body on one side of the slag discharge chamber. A pusher plate is disposed on the furnace body outside the slag outlet.
2. A high-temperature kiln according to claim 1, characterized in that, The outer protective layer is made of refractory bricks, the middle heat insulation layer is made of fiber felt, the inner working layer is made of high alumina bricks, and the lining is made of heat-insulating ceramic fiber board.
3. A high-temperature kiln according to claim 2, characterized in that, The bottom plate of the slag discharge chamber includes a first sub-plate and a second sub-plate fixedly connected. The first sub-plate and the second sub-plate are symmetrically arranged, and the included angle formed by the connection of the first sub-plate and the second sub-plate is less than 180°. The included angle between the first sub-plate and the second sub-plate and the side wall of the furnace body where the slag discharge port is located is less than 90°.
4. A high-temperature kiln according to claim 3, characterized in that, The furnace body is provided with a first limiting groove and a second limiting groove at the top and bottom of the outer side of the slag outlet, respectively. The top and bottom of the push plate are respectively engaged and slid within the first limiting groove and the second limiting groove. A handle is installed on the outer side of the push plate.
5. A high-temperature kiln according to claim 4, characterized in that, A limiting plate is fixed on the upper side of the slag discharge chamber inside the furnace body, and a rectangular opening is provided in the middle of the limiting plate; the filter plate is a flip-type structure that is rotatably hinged to the rectangular opening of the limiting plate on one side.
6. A high-temperature kiln according to claim 5, characterized in that, A positioning plate is also installed on the filter plate. One end of the positioning plate is fixed to the filter plate, and the other end of the positioning plate is convex. The convex part of the positioning plate is in contact with the upper surface of the limiting plate. Multiple handles are installed on the filter plate near the positioning plate.