Heat preservation device for high-purity magnesia kiln

Abstract

The utility model discloses a high-purity magnesia kiln heat preservation device which comprises a bottom plate, the right side of the top of the bottom plate is fixedly connected with a fixing base, the top of the fixing base is fixedly connected with a kiln body, the bottom of an inner cavity of the kiln body is fixedly connected with a heating furnace, and the two sides of the inner cavity of the kiln body are fixedly connected with heat preservation layers. And the top of the kiln body is communicated with a smoke exhaust hood. The heating furnace is started through the operation panel, the heating furnace treats magnesia, generated flue gas enters the shell through the connecting pipe, the negative pressure fan is started, and the flue gas can be collected into the shell through negative pressure airflow generated by the negative pressure fan; harmful substances in flue gas are adsorbed through the first filter layer and the second filter layer, so that the effect of purifying the flue gas is achieved, and the problems that in the using process of a traditional magnesia kiln heat preservation device, the heat preservation performance is poor, meanwhile, the flue gas treatment effect is poor, and the environmental protection effect is prone to being reduced can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesia kilns, in particular to a high-purity magnesia kiln insulation device. Background Art

[0002] Magnesia, also known as sintered magnesia, is made by high-temperature calcination of magnesite, magnesite or magnesium hydroxide obtained by the reaction of seawater and lime milk. It has strong hydration ability and is mainly used to make alkaline refractory materials, such as magnesia bricks and magnesia-alumina bricks. Those containing more impurities are used to pave the bottom of steelmaking furnaces.

[0003] For example, a Chinese utility model provides "a sintered magnesia calcining vertical kiln device", and its announcement number is: CN217636697U, which includes a base, a material box is fixedly connected to the left side of the top of the base, and a driving motor is fixedly connected to the left side of the material box. The surface of the output shaft of the driving motor is provided with a transmission mechanism. The utility model cooperates with the material box, the driving motor, the transmission mechanism, the threaded rod, the threaded sleeve, the support rod, the baffle, the material guide plate, the vertical kiln body, the air outlet pipe, the feed pipe and the filter box. The output shaft of the driving motor drives the threaded sleeve to move through the transmission mechanism and the threaded rod, and the threaded sleeve drives the baffle to rotate through the support rod, so that the material enters the vertical kiln body through the material guide plate and the feed pipe under the action of gravity, and the high-temperature flue gas flows in the air outlet pipe to preliminarily preheat the material, and then the flue gas is filtered through the filter box to avoid it from polluting the environment, thereby achieving a high practical effect and solving the problem of low practicality of the existing device.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: the thermal insulation performance of the magnesia kiln in the above patent is poor during use, and the flue gas treatment effect is not good, which easily reduces the environmental protection effect. Therefore, we proposed a high-purity magnesia kiln thermal insulation device. Utility Model Content

[0005] The utility model aims to provide a high-purity magnesia kiln insulation device, which has the advantage of improving the thermal insulation and environmental protection effects, and solves the problem that the thermal insulation performance of the magnesia kiln insulation device is poor during use, and the flue gas treatment effect is not good, which easily reduces the environmental protection effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-purity magnesia sand kiln insulation device, comprising a bottom plate, a fixed seat is fixedly connected to the right side of the top of the bottom plate, a kiln body is fixedly connected to the top of the fixed seat, a heating furnace is fixedly connected to the bottom of the inner cavity of the kiln body, insulation layers are fixedly connected to both sides of the inner cavity of the kiln body, a smoke exhaust hood is connected to the top of the smoke exhaust hood, a connecting pipe is connected to the top of the smoke exhaust hood, a shell is fixedly connected to the left side of the top of the bottom plate, a negative pressure fan is fixedly connected to the bottom of the inner cavity of the shell, a first filter layer is fixedly connected to the inner cavity of the shell, a second filter layer is fixedly connected to the inner cavity of the shell and located below the first filter layer, the connecting pipe is connected to the shell on the side away from the exhaust hood, the insulation layer comprises a heat insulation layer, an inner lining layer is fixedly connected to the right side of the heat insulation layer, a sealing cover is hinged on the right side of the kiln body surface by a hinge, and a discharge pipe is connected to the bottom of the left side of the shell.

[0007] Preferably, an inspection plate is provided on the top of the shell surface, and fasteners are provided on the four corners of the inspection plate surface.

[0008] Preferably, an operation panel is provided at the bottom of the kiln body surface, and the operation panel is electrically connected to the heating furnace through a wire.

[0009] Preferably, a support frame is fixedly connected to the top of the left side of the kiln body, and the top of the support frame is fixedly connected to the connecting pipe.

[0010] Preferably, the first filter layer is made of a filter plate, and the material of the filter plate is activated carbon material.

[0011] Preferably, the second filter layer is made of non-woven fabric, and the non-woven fabric has a double-layer structure.

[0012] Preferably, the heat insulation layer is made of silicate board, and the lining layer is made of clay.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model starts the heating furnace through the operation panel, and the heating furnace processes magnesia, and the generated smoke enters the interior of the shell through the connecting pipe, and the negative pressure fan is started. The negative pressure airflow generated by the negative pressure fan can collect the smoke to the interior of the shell, and the harmful substances in the smoke are adsorbed by the first filter layer and the second filter layer, so as to achieve the effect of purifying the smoke, thereby effectively solving the problem that the traditional magnesia kiln insulation device has poor thermal insulation performance during use, and the effect of smoke treatment is not good, which is easy to reduce the environmental protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the internal structure of the shell of the utility model;

[0017] Figure 3 It is a schematic diagram of the composition structure of the thermal insulation layer of the utility model;

[0018] Figure 4 It is a front view schematic diagram of the structure of the utility model.

[0019] In the figure: 1. bottom plate; 2. fixing seat; 3. kiln body; 4. heating furnace; 5. thermal insulation layer; 501. heat insulation layer; 502. lining layer; 6. exhaust hood; 7. connecting pipe; 8. shell; 9. negative pressure fan; 10. first filter layer; 11. second filter layer; 12. sealing cover; 13. discharge pipe; 14. inspection panel; 15. operation panel; 16. support frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4A high-purity magnesia kiln insulation device comprises a bottom plate 1, a fixing seat 2 is fixedly connected to the right side of the top of the bottom plate 1, a kiln body 3 is fixedly connected to the top of the fixing seat 2, a heating furnace 4 is fixedly connected to the bottom of the inner cavity of the kiln body 3, insulation layers 5 are fixedly connected to both sides of the inner cavity of the kiln body 3, a smoke exhaust hood 6 is connected to the top of the kiln body 3, a connecting pipe 7 is connected to the top of the smoke exhaust hood 6, a shell 8 is fixedly connected to the left side of the top of the bottom plate 1, a negative pressure fan 9 is fixedly connected to the bottom of the inner cavity of the shell 8, a first filter layer 10 is fixedly connected to the inner cavity of the shell 8, a second filter layer 11 is fixedly connected to the inner cavity of the shell 8 and located below the first filter layer 10, the connecting pipe 7 is connected to the shell 8 on the side away from the smoke exhaust hood 6, the insulation layer 5 comprises a heat insulation layer 501, and the heat insulation layer 5 comprises a heat insulation layer 502. The right side of layer 501 is fixedly connected with an inner lining layer 502, the right side of the surface of the kiln body 3 is hinged with a sealing cover 12, the bottom of the left side of the shell 8 is connected with an exhaust pipe 13, the heating furnace 4 is started through the operation panel 15, the heating furnace 4 processes the magnesia, and the generated flue gas enters the interior of the shell 8 through the connecting pipe 7, and the negative pressure fan 9 is started. The negative pressure airflow generated by the negative pressure fan 9 can collect the flue gas into the interior of the shell 8, and the harmful substances in the flue gas are adsorbed by the first filter layer 10 and the second filter layer 11, so as to achieve the effect of purifying the flue gas, thereby effectively solving the problem that the thermal insulation performance of the traditional magnesia kiln insulation device is poor during use, and the effect of flue gas treatment is not good, which is easy to reduce the environmental protection effect.

[0022] An inspection plate 14 is provided on the top of the surface of the housing 8 , and fasteners are provided at the four corners of the surface of the inspection plate 14 .

[0023] Through the above technical solution, by providing the inspection plate 14 and the fasteners, the internal structure of the shell 8 can be inspected, thereby achieving the purpose of convenient maintenance.

[0024] An operation panel 15 is provided at the bottom of the surface of the kiln body 3 , and the operation panel 15 is electrically connected to the heating furnace 4 through a wire.

[0025] Through the above technical solution, by setting the operation panel 15, the start and stop of the heating furnace 4 can be controlled, thereby achieving the purpose of convenient operation.

[0026] A support frame 16 is fixedly connected to the top of the left side of the kiln body 3 , and the top of the support frame 16 is fixedly connected to the connecting pipe 7 .

[0027] Through the above technical solution, by providing the support frame 16, the connecting pipe 7 can be supported, thereby ensuring the stability of the connecting pipe 7.

[0028] The first filter layer 10 is made of a filter plate, and the material of the filter plate is activated carbon material.

[0029] Through the above technical solution, by setting the first filter layer 10, which is made of activated carbon material, harmful substances in the flue gas can be adsorbed.

[0030] The second filter layer 11 is made of non-woven fabric, and the non-woven fabric has a double-layer structure.

[0031] Through the above technical solution, by providing the second filter layer 11 made of non-woven fabric, impurities in the smoke can be filtered, further improving the smoke treatment effect.

[0032] The heat insulating layer 501 is made of silicate board, and the inner lining layer 502 is made of clay.

[0033] Through the above technical solution, by providing the heat insulation layer 501 and the lining layer 502 , the heat preservation effect inside the kiln body 3 can be improved.

[0034] When in use, the heating furnace 4 is started through the operation panel 15, and the heating furnace 4 processes the magnesia sand. The generated smoke enters the interior of the shell 8 through the connecting pipe 7. By starting the negative pressure fan 9, the negative pressure airflow generated by the negative pressure fan 9 can collect the smoke into the interior of the shell 8, and the harmful substances in the smoke are adsorbed through the first filter layer 10 and the second filter layer 11, thereby achieving the effect of purifying the smoke.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-purity magnesia kiln insulation device, comprising a bottom plate (1), characterized in that: The right side of the top of the bottom plate (1) is fixedly connected to a fixing seat (2), the top of the fixing seat (2) is fixedly connected to a kiln body (3), the bottom of the inner cavity of the kiln body (3) is fixedly connected to a heating furnace (4), both sides of the inner cavity of the kiln body (3) are fixedly connected to a thermal insulation layer (5), the top of the kiln body (3) is connected to a smoke exhaust hood (6), the top of the smoke exhaust hood (6) is connected to a connecting pipe (7), the left side of the top of the bottom plate (1) is fixedly connected to a shell (8), the bottom of the inner cavity of the shell (8) is fixedly connected to a negative pressure fan (9), and the The inner cavity of the shell (8) is fixedly connected to a first filter layer (10), the inner cavity of the shell (8) is fixedly connected to a second filter layer (11) located below the first filter layer (10), the connecting pipe (7) is connected to the shell (8) at a side away from the smoke exhaust hood (6), the thermal insulation layer (5) comprises a heat insulation layer (501), the right side of the heat insulation layer (501) is fixedly connected to an inner lining layer (502), the right side of the surface of the kiln body (3) is hingedly connected to a sealing cover (12), and the bottom of the left side of the shell (8) is connected to a discharge pipe (13).

2. A high-purity magnesia kiln insulation device according to claim 1, characterized in that: An inspection plate (14) is provided at the top of the surface of the shell (8), and fasteners are provided at the four corners of the surface of the inspection plate (14).

3. A high-purity magnesia kiln insulation device according to claim 1, characterized in that: An operating panel (15) is provided at the bottom of the surface of the kiln body (3), and the operating panel (15) is electrically connected to the heating furnace (4) via a wire.

4. A high-purity magnesia kiln insulation device according to claim 1, characterized in that: A support frame (16) is fixedly connected to the top of the left side of the kiln body (3), and the top of the support frame (16) is fixedly connected to the connecting pipe (7).

5. A high-purity magnesia kiln insulation device according to claim 1, characterized in that: The first filter layer (10) is made of a filter plate, and the material of the filter plate is activated carbon material.

6. A high-purity magnesia kiln insulation device according to claim 1, characterized in that: The second filter layer (11) is made of non-woven fabric, and the non-woven fabric has a double-layer structure.

7. A high-purity magnesia kiln insulation device according to claim 1, characterized in that: The heat insulation layer (501) is made of silicate board, and the inner lining layer (502) is made of clay.

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