Kiln cover
By connecting the kiln cover to the box body and using combustibles to consume oxygen through active oxygen isolation, combined with dry ice and steam cooling, the problems of excessive material consumption, high loss, and high cost of traditional kiln covers are solved, achieving high yield and efficient cooling.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- GANZHOU WENZHEN TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2026-01-08
- Publication Date
- 2026-05-21
AI Technical Summary
Traditional kiln covers use a passive oxygen-isolation method, which results in excessive material consumption, high losses, high costs, and low yield.
Design a kiln hood that connects to a box body outside the hood and sets an air inlet pipe at the bottom of the box body. Air enters the hood body after the combustibles inside the box body consume oxygen. The principle of hot air rising is used to maintain a slight positive pressure inside the hood, achieving active oxygen isolation. This is combined with high-pressure gas and steam cooling using dry ice or liquid carbon dioxide.
It reduces the amount of combustible materials used by 90%, increases the yield rate to over 95%, has high cooling efficiency, simple structure, is easy to use, and reduces production costs.
Smart Images
Figure CN2026071257_21052026_PF_FP_ABST
Abstract
Description
A kiln cover Technical Field
[0001] This utility model relates to the field of kiln technology, and in particular to a kiln cover. Background Technology
[0002] Traditional brick kilns typically employ an oxygen-deficient cooling method after firing to process the fired bricks. Current technology uses a hood to cover the high-temperature sintered brick blanks, isolating them from oxygen during brick production. For example, utility model patent CN220380254U discloses a kiln hood that uses refractory material filled with combustibles along the edge of the hood's opening to consume the oxygen entering the hood. The high-temperature brick blanks cause the combustibles to smolder. During cooling, the air inside the hood contracts, and when outside air enters, it passes over the smoldering combustibles, burning off the oxygen and maintaining an oxygen-deficient environment. However, this passive oxygen-isolating method suffers from problems such as high material consumption, significant waste, high cost, and low yield. Utility Model Content
[0003] The purpose of this invention is to provide a kiln hood that solves the aforementioned problems in the prior art.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] This utility model discloses a kiln hood, comprising a hood body and a box body. The bottom of the hood body is provided with an opening, and the hood body and the box body are connected. An air inlet pipe is provided at the bottom of the box body, and the box body is filled with combustible material. Air enters the box body through the air inlet pipe, and after the combustible material consumes oxygen, it enters the hood body.
[0006] Furthermore, the cover and the box are connected by welding.
[0007] Furthermore, the cover and the box are connected by the connecting pipe assembly.
[0008] Furthermore, the connecting pipe assembly includes a first pipe body, a second pipe body, and connecting bolts. The first pipe body is fixedly connected to the cover body, and a first connecting end is provided at the end of the first pipe body away from the cover body. The second pipe body is fixedly connected to the box body, and a second connecting end is provided at the end of the second pipe body away from the box body. The first connecting end and the second connecting end are fixedly connected by a plurality of symmetrically arranged connecting bolts.
[0009] Furthermore, it also includes a first cooling assembly, which includes a high-pressure gas cylinder, a first valve, a pressure guiding pipe, and an upper high-pressure pipe. The outlet end of the high-pressure gas cylinder is provided with the first valve. One end of the pressure guiding pipe is connected to the first valve, and the other end extends into the housing and is connected to the upper high-pressure pipe. The bottom of the upper high-pressure pipe is provided with a plurality of upper high-pressure nozzles, and the upper high-pressure pipe is fixedly connected to the top wall of the housing through an upper mounting base.
[0010] Furthermore, the first cooling assembly also includes a side high-pressure pipe and a side mounting base. One end and / or both ends of the upper high-pressure pipe are connected to the side high-pressure pipe. A plurality of side high-pressure nozzles are provided on the side of the side high-pressure pipe facing the interior of the cover body, and the side high-pressure pipe is fixedly connected to the inner wall of the cover body through the side mounting base.
[0011] Furthermore, the high-pressure gas cylinder contains dry ice or liquid carbon dioxide.
[0012] Furthermore, it also includes a second cooling assembly, which includes a steam generator, a second valve, a delivery pipe, and a connecting pipe. The steam generator is provided with the second valve at its outlet end. One end of the delivery pipe is connected to the second valve, and the other end extends into the shroud and is connected to the connecting pipe. The connecting pipe is provided with a plurality of steam nozzles, and the connecting pipe is fixedly connected to the inner wall of the shroud through a connecting seat.
[0013] Furthermore, the bottom of the cover is connected to a bottom plane, and the bottom plane has grooves around its perimeter filled with powder water or water to form a water tank, so as to achieve a relatively sealed effect.
[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0015] This utility model's kiln hood transforms the passive oxygen isolation of existing technology into active oxygen isolation. By connecting a box body to the outside of the hood and installing an air inlet pipe at the bottom of the box body, air enters the box body through the air inlet pipe at the bottom of the box body. After being deoxygenated by smoldering combustibles, it enters the hood body, achieving the effect of deoxygenation. Utilizing the principle of hot air rising, a slight positive pressure is maintained inside the hood, enabling active control of the air inlet point. This reduces the amount of combustibles required by the hood by 90%, eliminates the need for easily damaged high-temperature resistant cloth, and significantly improves the yield rate, which can reach over 95% after the improvement. This utility model can rapidly cool the antique-style materials inside the hood. The overall structure is simple, easy to use, and highly practical. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 is a schematic diagram of the structure of the kiln cover of Embodiment 1 of this utility model;
[0018] Figure 2 is a schematic diagram of the kiln hood in Embodiment 2 of this utility model;
[0019] Figure 3 is a schematic diagram of the kiln hood in Embodiment 3 of this utility model;
[0020] Figure 4 is a three-dimensional structural schematic diagram of the connecting pipe assembly of the kiln hood in Embodiment 3 of this utility model;
[0021] Figure 5 is an exploded view of the connecting pipe assembly of the kiln hood in Embodiment 3 of this utility model;
[0022] Figure 6 is a schematic diagram of the kiln hood in Embodiment 4 of this utility model;
[0023] Figure 7 is a schematic diagram of the structure of the kiln cover in Embodiment 5 of this utility model;
[0024] Figure 8 is a schematic diagram of the kiln hood in Embodiment 6 of this utility model;
[0025] Figure 9 is a schematic diagram of the kiln cover of Embodiment 7 of this utility model.
[0026] Explanation of reference numerals in the attached drawings: 1. Cover; 2. Box; 3. Combustible material; 4. Connecting pipe assembly; 41. First pipe body; 42. First connecting end; 43. Second pipe body; 44. Second connecting end; 45. Connecting bolt; 5. Air inlet pipe; 6. First cooling assembly; 61. High-pressure gas cylinder; 62. First valve; 63. Pressure guide pipe; 64. Upper high-pressure pipe; 65. Upper high-pressure nozzle; 66. Upper mounting base; 67. Side high-pressure pipe; 68. Side high-pressure nozzle; 69. Side mounting base; 7. Second cooling assembly; 71. Steam generator; 72. Second valve; 73. Delivery pipe; 74. Connecting pipe; 75. Steam nozzle; 76. Connecting base. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0028] In the description of this utility model, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1
[0030] As shown in Figure 1, the kiln hood of this embodiment 1 includes a hood body 1 and a box body 2. The bottom of the hood body 1 is provided with an opening, and the hood body 1 and the box body 2 are connected. Specifically, the hood body 1 and the box body 2 are directly welded together, and the joint position of the hood body 1 and the box body 2 is provided with a through-hole that is interconnected. The bottom of the box body 2 is provided with an air inlet pipe 5, and the box body 2 is filled with combustible material 3. Air enters the box body 2 through the air inlet pipe 5, and after the combustible material 3 consumes oxygen, it enters the hood body 1, achieving an oxygen isolation effect.
[0031] Furthermore, the bottom of the cover 1 is connected to the bottom plane, and grooves are cut around the bottom plane to fill powder water or add water to form a water tank to achieve a relatively sealed effect. Example 2
[0032] As shown in Figure 2, the kiln hood of this embodiment 2 includes a hood body 1, a box body 2, and a connecting pipe assembly 4. The bottom of the hood body 1 is provided with an opening. The hood body 1 and the box body 2 are connected by the connecting pipe assembly 4. Optionally, the connecting pipe assembly 4 includes a pipe body, and the two ends of the pipe body are fixedly connected to the hood body 1 and the box body 2 respectively. The bottom of the box body 2 is provided with an air inlet pipe 5. The box body 2 is filled with combustible material 3. During the combustion process, the combustible material 3 will consume the oxygen in the air entering the hood body 1, thereby achieving the effect of deoxygenation.
[0033] In this embodiment, a filter screen is detachably connected inside the air intake pipe 5 to filter the gas entering the housing 2. Since the filter screen is detachable, it can be easily removed from the air intake pipe 5 for cleaning and maintenance, which not only ensures the continuous filtering effect of the filter screen, but also extends the service life of the filter screen. Example 3
[0034] As shown in Figures 3 to 5, the difference between this embodiment 3 and embodiment 2 is that the connecting pipe assembly 4 includes a first pipe body 41, a second pipe body 43, and connecting bolts 45. The first pipe body 41 is fixedly connected to the cover 1, and a first connecting end 42 is provided at the end of the first pipe body 41 away from the cover 1. The second pipe body 43 is fixedly connected to the box 2, and a second connecting end 44 is provided at the end of the second pipe body 43 away from the box 2. The first connecting end 42 and the second connecting end 44 are fixedly connected by a number of symmetrically arranged connecting bolts 45, that is, the cover 1 and the box 2 are connected in a detachable manner.
[0035] In this embodiment, the first tube 41 is fixedly connected to the cover 1, and the second tube 43 is fixedly connected to the box 2. This arrangement allows for installation or disassembly by simply operating the connecting tube assembly 4, without requiring additional operation on the cover 1 or the box 2. The first connecting end 42 and the second connecting end 44 are fixedly connected by connecting bolts 45, making the operation simple and quick. Preferably, there are six connecting bolts 45. Example 4
[0036] As shown in Figure 6, the difference between this embodiment 4 and embodiment 2 is that the kiln hood of this embodiment 4 also includes a first cooling component 6. The first cooling component 6 includes a high-pressure gas cylinder 61, a first valve 62, a pressure guiding pipe 63, and an upper high-pressure pipe 64. The outlet end of the high-pressure gas cylinder 61 is provided with a first valve 62. By adjusting the opening of the valve, the flow rate and spray speed of the cooling medium can be precisely controlled, thereby achieving precise control of the temperature inside the kiln hood. One end of the pressure guiding pipe 63 is connected to the first valve 62, and the other end extends into the hood 1 and is connected to the upper high-pressure pipe 64. The bottom of the upper high-pressure pipe 64 is provided with several upper high-pressure nozzles 65, and the upper high-pressure pipe 64 is fixedly connected to the inner top wall of the hood 1 through an upper mounting base 66.
[0037] Specifically, the high-pressure gas cylinder 61 contains dry ice or liquid carbon dioxide. During vaporization, the dry ice or liquid carbon dioxide absorbs a large amount of heat, achieving rapid cooling. This cooling method is not only fast but also has a large cooling range, quickly reducing the temperature inside the enclosure 1. Furthermore, dry ice and liquid carbon dioxide, as cooling media, have advantages such as being pollution-free and recyclable. They do not produce any harmful substances during the cooling process, making them environmentally friendly. At the same time, their high cooling efficiency significantly reduces energy consumption and production costs.
[0038] Optionally, a number of first cooling components 6 are arranged around the circumference of the cover 1, and the high-pressure gas cylinders 61 of the number of first cooling components 6 can be selected as dry ice or liquid carbon dioxide according to the needs of use. Example 5
[0039] As shown in Figure 7, the difference between this embodiment 5 and embodiment 4 is that the first cooling component 6 further includes a side high-pressure pipe 67 and a side mounting base 69. One end and / or both ends of the upper high-pressure pipe 64 are connected to the side high-pressure pipe 67. The side high-pressure pipe 67 is provided with a plurality of side high-pressure nozzles 68 on the side facing the inside of the cover 1. The side high-pressure pipe 67 is fixedly connected to the inner side wall of the cover 1 through the side mounting base 69. The side mounting base 69 can ensure the stability and reliability of the side high-pressure pipe 67 and prevent it from deforming or falling off in a high-temperature environment.
[0040] At this time, the side high-pressure pipe 67 serves as a supplement to the upper high-pressure pipe 64. The side high-pressure pipe 67 is connected to one or both ends of the upper high-pressure pipe 64 and extends towards one side inside the cover 1, which enables the cooling medium to be distributed more evenly inside the cover 1 and improves the cooling efficiency. Furthermore, the side high-pressure pipe 67 is equipped with several side high-pressure nozzles 68. The nozzles spray the cooling medium at high pressure and high speed onto the vicinity of the side wall inside the cover 1. By adjusting the number of nozzles and the spray angle, precise cooling of different areas inside the cover 1 can be achieved.
[0041] Optionally, the first cooling component 6 may be disposed on the top of the cover 1 and / or on the side wall of the cover 1, and multiple sets of the first cooling component 6 may be provided to enhance the cooling effect. Example 6
[0042] As shown in Figure 8, the difference between this embodiment 6 and embodiment 2 is that the kiln hood of this embodiment 6 also includes a second cooling component 7. The second cooling component 7 includes a steam generator 71, a second valve 72, a conveying pipe 73, and a connecting pipe 74. The outlet end of the steam generator 71 is provided with the second valve 72. One end of the conveying pipe 73 is connected to the second valve 72, and the other end extends into the hood 1 and is connected to the connecting pipe 74. The connecting pipe 74 is provided with a plurality of steam nozzles 75, and the connecting pipe 74 is fixedly connected to the inner wall of the hood 1 through a connecting seat 76.
[0043] In this embodiment, the second cooling component 7 adopts steam cooling. Steam cooling has the characteristics of being gentle and uniform, which can avoid the quality problems of the fired products caused by rapid cooling. By adjusting the opening of the second valve 72 and the injection speed of the steam nozzle 75, the temperature inside the kiln can be precisely controlled, thereby improving the quality and performance of the fired products.
[0044] Optionally, the second cooling component 7 can be disposed on the top of the cover 1 and / or on the side wall of the cover 1, and multiple sets of the second cooling component 7 can be provided to enhance the cooling effect. Example 7
[0045] As shown in Figure 9, the difference between Embodiment 7 and Embodiment 2 is that the kiln hood in Embodiment 7 includes a first cooling assembly 6 and a second cooling assembly 7. Specifically, the first cooling assembly 6 includes a high-pressure gas cylinder 61, a first valve 62, a pressure guiding pipe 63, and a side high-pressure pipe 67. The outlet end of the high-pressure gas cylinder 61 is provided with the first valve 62. One end of the pressure guiding pipe 63 is connected to the first valve 62, and the other end extends into the hood 1 and is connected to the side high-pressure pipe 67. The side high-pressure pipe 67 has several upper... The high-pressure nozzle 65 and the side high-pressure pipe 67 are fixedly connected to the inner side wall of the cover 1 through the side mounting seat 69; the second cooling assembly 7 includes a steam generator 71, a second valve 72, a conveying pipe 73 and a connecting pipe 74. The outlet end of the steam generator 71 is provided with the second valve 72. One end of the conveying pipe 73 is connected to the second valve 72, and the other end extends into the cover 1 and is connected to the connecting pipe 74. Several steam nozzles 75 are provided at the bottom of the connecting pipe 74, and the connecting pipe 74 is fixedly connected to the inner top wall of the cover 1 through the connecting seat 76.
[0046] At this time, by setting a second cooling component 7 on the top of the cover 1 and a first cooling component 6 on the side of the cover 1, a more comprehensive and efficient cooling effect can be provided. The integration of the first cooling component 6 and the second cooling component 7 enables the kiln cover to have dual cooling capabilities. The combination of high-pressure gas cooling and steam cooling can reduce the temperature inside the cover 1 more quickly and evenly, thereby improving cooling efficiency.
[0047] Optionally, a first cooling component 6 can be provided on the top of the cover 1, and a second cooling component 7 can be provided on the side of the cover 1 to enhance the cooling effect. The specific settings can be combined and selected during use.
[0048] This utility model's kiln hood transforms the passive oxygen isolation of existing technologies into active oxygen isolation. By connecting a box body to the outside of the hood and installing an air inlet pipe at the bottom of the box body, air enters the box body through the air inlet pipe at the bottom of the box body, is deoxygenated by smoldering combustibles, and then enters the hood body, achieving the effect of deoxygenation. Utilizing the principle of hot air rising, the inside of the hood is always kept at a slightly positive pressure, realizing active control of the air inlet point, which can reduce the amount of combustibles added by 90%, eliminates the need for easily damaged high-temperature resistant cloth, and greatly improves the yield rate. After the improvement, the yield rate can reach over 95%.
[0049] This invention can rapidly cool the antique-style materials inside the cover. It has a simple overall structure, is easy to use, and is highly practical.
[0050] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A furnace cover, characterized in that, It includes a cover and a box. The cover has an opening at the bottom and the cover is connected to the box. The bottom of the box is provided with an air inlet pipe. The box is filled with combustible material. Air enters the box through the air inlet pipe and then enters the cover after the combustible material consumes oxygen.
2. A kiln hood as claimed in claim 1, characterised in that, The cover and the box are connected by welding.
3. A furnace shield according to claim 1, wherein The cover and the box are connected by the connecting pipe assembly.
4. A furnace shield according to claim 3, wherein The connecting pipe assembly includes a first pipe body, a second pipe body, and connecting bolts. The first pipe body is fixedly connected to the cover body, and a first connecting end is provided at the end of the first pipe body away from the cover body. The second pipe body is fixedly connected to the box body, and a second connecting end is provided at the end of the second pipe body away from the box body. The first connecting end and the second connecting end are fixedly connected by a plurality of symmetrically arranged connecting bolts.
5. A kiln hood as claimed in claim 1, wherein, It also includes a first cooling assembly, which includes a high-pressure gas cylinder, a first valve, a pressure guiding pipe and an upper high-pressure pipe. The outlet end of the high-pressure gas cylinder is provided with the first valve. One end of the pressure guiding pipe is connected to the first valve, and the other end extends into the housing and is connected to the upper high-pressure pipe. The bottom of the upper high-pressure pipe is provided with a plurality of upper high-pressure nozzles, and the upper high-pressure pipe is fixedly connected to the top wall of the housing through an upper mounting base.
6. A furnace shield according to claim 5, wherein, The first cooling assembly further includes a side high-pressure pipe and a side mounting base. One end and / or both ends of the upper high-pressure pipe are connected to the side high-pressure pipe. A plurality of side high-pressure nozzles are provided on the side of the side high-pressure pipe facing the interior of the cover body, and the side high-pressure pipe is fixedly connected to the inner wall of the cover body through the side mounting base.
7. A furnace shield according to claim 5, wherein The high-pressure gas cylinder contains dry ice or liquid carbon dioxide.
8. A kiln hood as claimed in claim 1, characterised in that, It also includes a second cooling assembly, which includes a steam generator, a second valve, a delivery pipe and a connecting pipe. The steam generator is provided with the second valve at its outlet end. One end of the delivery pipe is connected to the second valve, and the other end extends into the shroud and is connected to the connecting pipe. The connecting pipe is provided with a plurality of steam nozzles, and the connecting pipe is fixedly connected to the inner wall of the shroud through a connecting seat.
9. A kiln hood according to any one of claims 1 to 8, characterised in that, The bottom of the cover is connected to the bottom plane, and the bottom plane has grooves around its perimeter filled with powder water or water to form a water tank, so as to achieve a relatively sealed effect.