CN219829454U - Rotary kiln cylinder with ceramic liner - Google Patents
Rotary kiln cylinder with ceramic liner Download PDFInfo
- Publication number
- CN219829454U CN219829454U CN202321095121.XU CN202321095121U CN219829454U CN 219829454 U CN219829454 U CN 219829454U CN 202321095121 U CN202321095121 U CN 202321095121U CN 219829454 U CN219829454 U CN 219829454U
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- ceramic
- heating wire
- splicing
- electric heating
- face
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- 239000000919 ceramic Substances 0.000 title claims abstract description 105
- 238000005485 electric heating Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000004321 preservation Methods 0.000 claims description 6
- 238000010304 firing Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to a rotary kiln cylinder with a ceramic liner, which comprises a cylinder shell; at least one ceramic liner is embedded in the shell of the cylinder body, and a plurality of ceramic liners are spliced together; an insulating layer is filled between the cylinder shell and the ceramic liner; the ceramic liner is formed by splicing at least 2 ceramic splicing pieces; one end face of one of the ceramic splicing pieces is provided with a heating wire inlet hole with an orifice positioned on the outer wall of the ceramic splicing piece, the other end face is provided with a heating wire outlet hole with an orifice positioned on the outer wall of the ceramic splicing piece, and the other end faces of one end of the ceramic splicing pieces are provided with heating wire placing holes with orifices positioned on the other end face; the electric heating wire inlet hole, the electric heating wire outlet hole, the electric heating wire placing holes and the electric heating wire placing holes are all communicated together, and electric heating wires are placed in the electric heating wire inlet hole and the electric heating wire outlet hole. The utility model has the advantages of adapting to the large-size requirement of the rotary kiln, having low cost, saving energy and the like.
Description
Technical Field
The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln cylinder with a ceramic liner.
Background
The rotary kiln is widely applied to various industrial fields, and the inner container of the rotary kiln cylinder body generally adopts a metal inner container, but when the powder containing the magnetic substances is fired, the rotary kiln with the ceramic inner container is used for preventing the magnetic pollution of the metal inner container to the powder containing the magnetic substances, and the ceramic inner container cannot generate magnetic pollution to the materials.
However, as the size of the rotary kiln cylinder increases, the ceramic liner is required to be increased in size, the oversized ceramic liner has higher requirements on the process and firing equipment during firing, and the large-size ceramic liner has high reject ratio during firing, which leads to high cost and limits the development of the rotary kiln cylinder with the ceramic liner to the large-size direction.
Disclosure of Invention
Therefore, the utility model provides a rotary kiln cylinder with a ceramic liner, which mainly solves the technical problem of high cost caused by the firing process and firing equipment when the ceramic liner of the rotary kiln cylinder in the prior art is developed to a large size.
In order to achieve the above object, the present utility model provides the following technical solutions:
a rotary kiln cylinder with a ceramic liner comprises a cylinder shell; at least one ceramic liner is embedded in the shell of the cylinder body, and a plurality of ceramic liners are spliced together; an insulating layer is filled between the cylinder shell and the ceramic liner; the ceramic liner is formed by splicing at least 2 ceramic splicing pieces; one end face of one of the ceramic splicing pieces is provided with a heating wire inlet hole with an orifice positioned on the outer wall of the ceramic splicing piece, the other end face is provided with a heating wire outlet hole with an orifice positioned on the outer wall of the ceramic splicing piece, and the other end faces of one end of the ceramic splicing pieces are provided with heating wire placing holes with orifices positioned on the other end face; the electric heating wire inlet hole, the electric heating wire outlet hole, the electric heating wire placing holes and the electric heating wire placing holes are all communicated together, and electric heating wires are placed in the electric heating wire inlet hole and the electric heating wire outlet hole.
Preferably, a plurality of limit protruding parts are uniformly distributed on the outer wall of the ceramic splicing sheet.
Preferably, the shell of the cylinder body is provided with a wire connecting hole of the heating wire; the electric heating wire wiring holes penetrate through the heat preservation layer and are positioned on the electric heating wire inlet holes and the electric heating wire outlet holes.
Optionally, the adjacent ceramic splicing sheet end surfaces are respectively provided with a convex part and a concave part matched with the convex part; the protrusion may be embedded in the recess.
Optionally, end face splicing convex rings and end face splicing circular grooves matched with the end face splicing convex rings are respectively arranged on the end faces of the adjacent ceramic inner containers; the end face splicing convex ring can be embedded into the end face splicing circular groove.
The utility model has at least the following beneficial effects:
the ceramic inner containers are spliced together, the ceramic inner containers are formed by splicing at least 2 ceramic splicing sheets, one end face of one of the ceramic splicing sheets is provided with an electric heating wire inlet hole with an orifice positioned on the outer wall of the ceramic splicing sheet, the other end face is provided with an electric heating wire outlet hole with an orifice positioned on the outer wall of the ceramic splicing sheet, one end face of the other ceramic splicing sheets is provided with electric heating wire placing holes with orifices positioned on the other end face, and the electric heating wire inlet hole, the electric heating wire outlet hole and the electric heating wire placing holes are communicated with each other and are internally provided with electric heating wires; the ceramic inner containers are spliced and embedded into the shell of the cylinder, and the ceramic inner containers are spliced by the ceramic splicing pieces, so that the firing difficulty is greatly reduced, the firing yield is improved, the cost is greatly reduced, and the ceramic inner containers can meet the requirements of a large-size rotary kiln; the heating efficiency can be improved by internally arranging the electric heating wire, and the energy sources are saved.
Therefore, the rotary kiln cylinder with the ceramic inner container has the advantages of meeting the large-size requirement of the rotary kiln, being low in cost, saving energy and the like.
Drawings
In order to more clearly illustrate the prior art and the present utility model, the drawings used in the description of the prior art and the embodiments of the present utility model will be briefly described. It will be apparent to those skilled in the art that the drawings in the following description are merely exemplary and that other drawings may be derived from the drawings provided without the inventive effort to those skilled in the art.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, for example, modifications, variations in proportions, or otherwise, used in the practice of the utility model, which are particularly adapted to specific environments without departing from the spirit and scope of the utility model.
FIG. 1 is a radial cross-sectional view of a rotary kiln cylinder with a ceramic liner in accordance with the present utility model;
FIG. 2 is an axial cross-sectional view of a rotary kiln cylinder with a ceramic liner in accordance with the present utility model;
FIG. 3 is a radial view of a ceramic liner of a rotary kiln cylinder having a ceramic liner in accordance with the present utility model;
FIG. 4 is a radial cross-sectional view of a ceramic liner of a rotary kiln cylinder having a ceramic liner in accordance with the present utility model;
FIG. 5 is a radial view of a ceramic liner sheet of a rotary kiln cylinder having a ceramic liner in accordance with the present utility model;
reference numerals illustrate:
1. a cylinder housing; 2. a heat preservation layer; 3. a ceramic liner; 301. ceramic splicing pieces; 3011. a limit protruding part; 3012. splicing convex rings on the end surfaces; 3013. splicing the end faces into round grooves; 3014. a boss; 3015. a recessed portion; 3016. a heating wire placement hole; 3017. an inlet hole of the heating wire; 3018. an outlet hole of the heating wire; 4. a wire connection hole of the heating wire; 5. heating wire.
Detailed Description
The utility model will be further described in detail by means of specific embodiments with reference to the accompanying drawings.
In the description of the present utility model: unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," and the like in this disclosure are intended to distinguish between the referenced objects without a special meaning in terms of technical connotation (e.g., should not be construed as emphasis on the degree of importance or order, etc.). The expressions "comprising", "including", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).
The terms such as "upper", "lower", "left", "right", "middle", etc. are generally used herein for convenience of visual understanding with reference to the drawings and are not to be construed as absolute limitations on the positional relationship of the actual product. Such changes in the relative positional relationship without departing from the technical idea of the present utility model are also considered as the scope of the present utility model.
The rotary kiln cylinder with the ceramic inner container, as shown in figures 1 to 5, comprises a cylinder shell 1, wherein the ceramic inner container 3 is embedded in the cylinder shell 1, the rotary kiln cylinder is generally larger, the process difficulty for manufacturing the ceramic inner container 3 with large size is high, the rejection rate is high, in order to reduce the difficulty for manufacturing the ceramic inner container 3, a plurality of ceramic inner containers 3 can be spliced together and placed in the cylinder shell 1, thus the size of the ceramic inner container 3 is reduced, the process difficulty during firing is reduced, the yield is improved, the cost is reduced, a heat preservation layer 2 is filled between the cylinder shell 1 and the ceramic inner container 3, the heat preservation layer 2 can be filled by adopting casting materials, the effects of heat preservation for the ceramic inner container 3 and supporting and fixing the ceramic inner container 3 can be achieved, the manufacturing difficulty of the ceramic inner container 3 is further reduced, and the yield is improved, the single ceramic liner 3 is formed by splicing at least 2 ceramic splicing pieces 301, so that one ceramic liner 3 is divided into a plurality of ceramic splicing pieces 301, the ceramic liner 3 can have larger size, the rotary kiln barrel can also have larger size, one end face of one of the ceramic splicing pieces 301 of the spliced ceramic liner 3 is provided with a heating wire inlet hole 301 with an orifice positioned on the outer wall of the ceramic splicing piece, the other end face is provided with a heating wire outlet hole 3018 with an orifice positioned on the outer wall of the ceramic splicing piece, one end face of the other ceramic splicing pieces 301 is provided with heating wire placing holes 3016 with orifices positioned on the other end face, the heating wire inlet holes 3017, the heating wire outlet holes 3018 and the heating wire placing holes 3016 are communicated with each other, the heating wire 5 is penetrated from the heating wire inlet holes 3017, passes through the heating wire placing holes 3016 and is penetrated out from the heating wire outlet holes 3018, the heating wire 5 is arranged in the side wall of the ceramic inner container 3, and the kiln is heated by the heating wire 5, so that the internal heating mode can improve the heating efficiency and save energy.
Preferably, in order to limit the ceramic liner 3, sliding does not occur between the ceramic liner 3 and the heat insulation layer 2 when the rotary kiln rotates, a plurality of limit protruding portions 3011 are uniformly distributed on the outer wall of the ceramic splicing piece 301, and when the heat insulation layer 2 is poured, the limit protruding portions 3011 are embedded in the heat insulation layer, so that the ceramic liner 3 and the heat insulation layer 2 are firmly fixed together.
Preferably, in order to facilitate the overlapping of the power line, the shell 1 of the cylinder is provided with the electric heating wire wiring hole 4, the electric heating wire wiring hole 4 penetrates through the heat insulation layer 2 and is positioned on the electric heating wire inlet hole 3017 and the electric heating wire outlet hole 3018, and when the electric heating wire 5 penetrates into the electric heating wire placing hole 3016 and the overlapping of the power line, the electric heating wire wiring hole 4 is very convenient.
Optionally, an embodiment of the present utility model provides a preferred fixing structure between the ceramic splicing pieces 301, where a protruding portion 3014 is provided on an end face of one ceramic splicing piece 301, and a recessed portion 3015 adapted to the protruding portion 3014 is provided on an end face of another adjacent ceramic splicing piece 301, where the protruding portion 3014, the defect portion 3015 and the ceramic splicing piece 301 are integrally formed, and the protruding portion 3014 is embedded in the recessed portion 3015 during splicing, so as to enhance stability of the spliced body.
Optionally, an embodiment of the present utility model provides a preferred fixing structure for splicing the ceramic inner containers 3, wherein an end face splicing convex ring 3012 is arranged on the end face of one ceramic inner container 3, an end face splicing circular groove 3013 adapted to the end face splicing convex ring 3012 is arranged on the end face of another adjacent ceramic inner container 3, and during splicing, the end face splicing convex ring 3012 is embedded into the end face splicing circular groove 3013, so as to enhance the stability of the spliced body.
The utility model has been described above with particularity and detail in connection with general description and specific embodiments. It should be understood that numerous conventional modifications and further innovations may be made to these specific embodiments, based on the technical concepts of the present utility model; but these conventional modifications and further innovations may also fall within the scope of the claims of the present utility model as long as they do not depart from the technical spirit of the present utility model.
Claims (5)
1. The rotary kiln cylinder with the ceramic inner container comprises a cylinder shell (1), and is characterized in that at least one ceramic inner container (3) is embedded in the cylinder shell (1), and a plurality of ceramic inner containers (3) are spliced together; an insulating layer (2) is filled between the cylinder shell (1) and the ceramic liner (3); the ceramic liner (3) is formed by splicing at least 2 ceramic splicing pieces (301); one end face of one of the ceramic splicing pieces (301) is provided with a heating wire inlet hole (3017) with a hole opening positioned on the outer wall of the ceramic splicing piece, the other end face is provided with a heating wire outlet hole (3018) with a hole opening positioned on the outer wall of the ceramic splicing piece, and the other end faces of one end of the ceramic splicing pieces (301) are provided with heating wire placing holes (3016) with hole openings positioned on the other end face; the electric heating wire inlet holes (3017), the electric heating wire outlet holes (3018) and the electric heating wire placing holes (3016) are communicated with each other, and the electric heating wires (5) are placed in the electric heating wire inlet holes.
2. The rotary kiln cylinder with the ceramic inner container according to claim 1, wherein a plurality of limiting protruding parts (3011) are uniformly distributed on the outer wall of the ceramic splicing piece (301).
3. The rotary kiln cylinder with the ceramic inner container according to claim 1, wherein the cylinder shell (1) is provided with an electric heating wire connection hole (4); the electric heating wire wiring hole (4) penetrates through the heat preservation layer (2) and is positioned on the electric heating wire inlet hole (3017) and the electric heating wire outlet hole (3018).
4. A rotary kiln cylinder with a ceramic liner according to any one of claims 1 to 3, characterized in that the end faces of adjacent ceramic splicing pieces (301) are respectively provided with a convex part (3014) and a concave part (3015) matched with the convex part (3014); the raised portion (3014) may be embedded within the recessed portion (3015).
5. A rotary kiln cylinder with a ceramic liner according to any one of claims 1 to 3, characterized in that end face splicing convex rings (3012) and end face splicing circular grooves (3013) matched with the end face splicing convex rings (3012) are respectively arranged on the end faces of the adjacent ceramic liner (3); the end face splicing collar (3012) can be embedded into the end face splicing circular groove (3013).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321095121.XU CN219829454U (en) | 2023-05-09 | 2023-05-09 | Rotary kiln cylinder with ceramic liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321095121.XU CN219829454U (en) | 2023-05-09 | 2023-05-09 | Rotary kiln cylinder with ceramic liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219829454U true CN219829454U (en) | 2023-10-13 |
Family
ID=88276312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321095121.XU Active CN219829454U (en) | 2023-05-09 | 2023-05-09 | Rotary kiln cylinder with ceramic liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219829454U (en) |
-
2023
- 2023-05-09 CN CN202321095121.XU patent/CN219829454U/en active Active
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