Splicing type ceramic rotary kiln barrel and rotary kiln

Abstract

The utility model relates to a spliced ceramic rotary kiln barrel and a rotary kiln. The spliced ceramic rotary kiln barrel comprises a first barrel section, at least one third barrel section and a second barrel section, the first barrel body section, the third barrel body section and the second barrel body section are spliced together in sequence; each of the first cylinder section, the second cylinder section and the third cylinder section comprises a metal shell on the outer layer and a ceramic liner on the inner layer; a pouring layer and a heat preservation layer are sequentially filled between the metal shell and the ceramic inner container from inside to outside. The rotary kiln barrel body of the spliced ceramic rotary kiln adopts the spliced ceramic rotary kiln barrel body, and has the advantages that the workload is reduced, the maintenance period is shortened, the production is quickly recovered, the production efficiency is improved and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal equipment, in particular to a spliced ​​ceramic rotary kiln cylinder and a rotary kiln. Background Art

[0002] Rotary kilns are widely used in numerous industrial fields. Typically, the kiln's inner shell is made of metal. However, when firing powders containing magnetic materials, ceramic inner shells are used to prevent contamination of the magnetic material by the metal shell. Ceramic shells do not cause magnetic contamination of the material.

[0003] Rotary kilns with ceramic linings typically have thicker sidewalls, which slows heat transfer from external heating and results in poor heating efficiency. Therefore, these rotary kilns typically utilize internal heating, installing electric heating elements within the ceramic lining to rapidly transfer heat to the kiln interior. However, this can also lead to the need for complete repair if the heating elements fail somewhere within the lining. Furthermore, the ceramic lining can also become detached from the inner wall of the lining during use, requiring complete repair, increasing the workload and time required for maintenance.

[0004] At the same time, for ceramic rotary kilns with smaller diameters, maintenance personnel cannot enter the kiln barrel, which also brings difficulties in maintenance. Utility Model Content

[0005] To this end, the utility model provides a spliced ​​ceramic rotary kiln cylinder and a rotary kiln, which mainly solve the technical problems of the rotary kiln with ceramic inner liner in the prior art, such as difficult maintenance, heavy maintenance workload and long construction period.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A spliced ​​ceramic rotary kiln cylinder comprises a first cylinder section, at least a third cylinder section and a second cylinder section; the first cylinder section, the third cylinder section and the second cylinder section are spliced ​​together in sequence; the first cylinder section, the second cylinder section and the third cylinder section each comprise an outer metal shell and an inner ceramic liner; the ceramic liners of the first cylinder section, the second cylinder section and the third cylinder section are each provided with an electric heating element for heating the material to be sintered in the rotary kiln cylinder; a casting layer and an insulation layer are sequentially filled between the metal shell and the ceramic liner from the inside out.

[0008] Optionally, the first cylinder section is provided with a first flange toward the side of the third cylinder section; the second cylinder section is provided with a second flange toward the side of the third cylinder section; the third cylinder section is provided with a third flange and a fourth flange on the left and right sides respectively; the first cylinder section and the third cylinder section are spliced ​​and connected together through the first flange and the third flange; multiple sections of the third cylinder section are spliced ​​and connected together through the fourth flange of the front section of the third cylinder section and the third flange of the rear section of the third cylinder section; the second cylinder section and the third cylinder section are spliced ​​and connected together through the second flange and the fourth flange.

[0009] Preferably, the fourth flange has a plurality of fourth flange surface grooves and fourth flange surface protrusions radially distributed on the side surface facing the second flange or the third flange; the second flange has a second flange surface protrusion on the side surface facing the fourth flange that is adapted to the number and position of the fourth flange surface grooves, and a second flange surface groove that is adapted to the number and position of the fourth flange surface protrusions; the third flange has a third flange surface protrusion on the side surface facing the fourth flange that is adapted to the number and position of the fourth flange surface grooves, and a third flange surface groove that is adapted to the number and position of the fourth flange surface protrusions; the first flange has a first flange surface protrusion on the side surface facing the third flange that is adapted to the number and position of the third flange surface grooves, and a first flange surface groove that is adapted to the number and position of the third flange surface protrusions.

[0010] Preferably, the third flange is provided with an annular third flange boss on the side facing the first flange or the fourth flange; the fourth flange is provided with a fourth flange groove adapted to the third flange boss on the side facing the third flange or the second flange; the first flange is provided with a first flange groove adapted to the third flange boss on the side facing the third flange; and the second flange is provided with a second flange boss adapted to the fourth flange groove on the side facing the fourth flange.

[0011] Preferably, the left side surface of the ceramic inner liner of the third cylinder section is provided with an annular third cylinder ceramic surface groove; the right side surface of the ceramic inner liner of the third cylinder section is provided with a third cylinder ceramic surface boss adapted to the third cylinder ceramic surface groove; the right side surface of the ceramic inner liner of the first cylinder section is provided with a first cylinder ceramic surface boss adapted to the third cylinder ceramic surface groove; the left side surface of the ceramic inner liner of the second cylinder section is provided with a second cylinder ceramic surface groove adapted to the third cylinder ceramic surface boss.

[0012] Preferably, the inner wall of the ceramic liner is bonded with a ceramic anti-corrosion layer.

[0013] Preferably, the space between the first cylinder segment and the third cylinder segment, the space between multiple sections of the third cylinder segment, and the space between the second cylinder segment and the third cylinder segment are all filled with clay.

[0014] Furthermore, the present application also proposes a spliced ​​ceramic rotary kiln, comprising a base; a rotary kiln cylinder is rotatably provided on the top surface of the base; the rotary kiln cylinder is the ceramic rotary kiln cylinder described in any one of the preceding items; a feed cover is provided on the left side of the first cylinder section, and a discharge cover is provided on the right side of the second cylinder section, for sealing the rotary kiln cylinder; the feed cover is provided with a feeder for conveying the material to be sintered into the rotary kiln cylinder; a discharge port is provided at the bottom of the discharge cover; and a rotation drive device is also provided for driving the rotary kiln cylinder to rotate.

[0015] Preferably, a carbon brush holder is provided on the top surface of the base; a carbon brush is provided on the carbon brush holder; a conductive slip ring is provided on the rotary kiln cylinder; the carbon brush and the conductive slip ring are fitted together; and the electric heating element is electrically connected to the conductive slip ring.

[0016] Optionally, it also includes a first adjusting arm and at least one second adjusting arm; the top of the first adjusting arm is hinged to the base facing the discharge cover; the top surface of the second adjusting arm is rotatably provided with an adjusting seat; the top surface of the adjusting seat is fixed with a height adjustment bolt; the height adjustment bolt is threadedly connected to the bottom surface of the base facing the feed cover at one end away from the adjusting seat.

[0017] The utility model has at least the following beneficial effects:

[0018] It is provided with a first cylinder section, at least one third cylinder section and a second cylinder section, and the first cylinder section, the third cylinder section and the second cylinder section are spliced ​​together in sequence. Because the ceramic rotary kiln cylinder of the present application is composed of the first cylinder section, the third cylinder section and the second cylinder section, when an electric heating element somewhere in the cylinder fails or when the inner wall somewhere in the cylinder falls off, the first cylinder section, the third cylinder section or the second cylinder section where the problem occurs can be quickly disassembled and replaced, thereby reducing the workload and shortening the maintenance period; the disassembled first cylinder section, the third cylinder section or the second cylinder section can even be repaired separately, and the first cylinder section, the third cylinder section or the second cylinder section without any fault can be quickly replaced to quickly resume production and improve production efficiency. At the same time, this multi-section splicing method not only solves the problem of casting small-diameter cylinders and the pasting and installation of ceramic anti-corrosion layers, but also can flexibly adjust the time that the material to be sintered stays in the kiln by increasing or decreasing the number of third cylinder sections according to process requirements.

[0019] It can be seen that the spliced ​​ceramic rotary kiln cylinder and the rotary kiln of the utility model have the advantages of reducing workload, shortening maintenance period, quickly resuming production, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other drawings based on the provided drawings without inventive effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented. Any structural modifications, changes in proportions, or adjustments in sizes shall remain within the scope of the technical contents disclosed herein without affecting the efficacy and objectives of the present invention.

[0022] Figure 1 This is a structural diagram of a spliced ​​ceramic rotary kiln cylinder of the utility model;

[0023] Figure 2 This is an accessory for a spliced ​​ceramic rotary kiln cylinder. Figure 1 A partial enlarged view of part A;

[0024] Figure 3 This is an accessory for a spliced ​​ceramic rotary kiln cylinder. Figure 1 Front view of

[0025] Figure 4 This is a front cross-sectional view of the third cylinder section of a spliced ​​ceramic rotary kiln cylinder of the present invention;

[0026] Figure 5 This is a structural diagram of a spliced ​​ceramic rotary kiln of the utility model;

[0027] Figure 6 This is an accessory of a spliced ​​ceramic rotary kiln. Figure 5 A partial enlarged view of part B;

[0028] Figure 7 This is an accessory of a spliced ​​ceramic rotary kiln. Figure 5 A partial enlarged view of part C;

[0029] Description of reference numerals:

[0030] 1. First cylinder section; 2. Second cylinder section; 3. Third cylinder section; 4. First flange; 5. Second flange; 6. Third flange; 601. Third flange boss; 7. Fourth flange; 701. Fourth flange groove; 702. Fourth flange surface groove; 703. Fourth flange surface protrusion; 8. Metal shell; 9. Insulation layer; 10. Casting layer; 11. Ceramic liner; 1101. Third cylinder ceramic surface groove; 110 2. Ceramic surface boss of the third cylinder; 12. Ceramic anti-corrosion layer; 13. Base; 14. Rotary kiln cylinder; 15. Feed cover; 16. Feeder; 17. Discharge cover; 18. Discharge port; 19. Roller; 20. Support roller; 21. Stop wheel; 22. Carbon brush bracket; 23. Conductive slip ring; 24. Junction box; 25. Drive motor; 26. First adjusting arm; 27. Second adjusting arm; 28. Adjustment seat; 29. ​​Handle. DETAILED DESCRIPTION

[0031] The present application will be further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0032] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0033] Terms such as "upper," "lower," "left," "right," and "center" used in this application are generally intended to facilitate intuitive understanding when compared with the accompanying drawings and are not intended to be absolute limitations on positional relationships in actual products. Changes to these relative positional relationships are considered within the scope of this application without departing from the technical concepts disclosed herein.

[0034] The utility model is a spliced ​​ceramic rotary kiln cylinder, such as Figures 1 to 4As shown, it includes a first barrel section 1, at least a third barrel section 3 and a second barrel section 2. The first barrel section 1, the third barrel section 3 and the second barrel section 2 are spliced ​​together in sequence. The first barrel section 1, the second barrel section 2 and the third barrel section 3 all include an outer metal shell 8 and an inner ceramic liner 11. Electric heating elements are provided in the ceramic liner 11 of the first barrel section 1, the second barrel section 2 and the third barrel section 3. The electric heating elements can be selected from heating wires, thermocouples, etc., and are used to heat the materials to be sintered in the barrel of the rotary kiln. Specifically, the existing technology can be used to open a hole for placing the electric heating elements in the ceramic liner 11, and the electric heating elements are inserted and placed in the hole for placing the electric heating elements. This is well known to those skilled in the art and will not be described here. Between the metal shell 8 and the ceramic liner 11, a casting layer 10 and an insulation layer 9 are filled in sequence from the inside to the outside. The casting layer 10 is a casting material that can support and fix the ceramic liner 11. The insulation layer 9 is a high-temperature resistant insulation material that plays a role in heat insulation. They are all prior art and are well known to those skilled in the art and will not be described in detail here. Because the ceramic rotary kiln cylinder of the present application is composed of a first cylinder section 1, a third cylinder section 3 and a second cylinder section 2, when an electric heating element somewhere in the cylinder fails or when the inner wall of the cylinder falls off, the first cylinder section 1, the third cylinder section 3, or the second cylinder section 2 at the problem location can be quickly disassembled and replaced, reducing the workload and shortening the maintenance period; even the disassembled first cylinder section 1, the third cylinder section 3, or the second cylinder section 2 can be repaired separately, and the first cylinder section 1, the third cylinder section 3, or the second cylinder section 2 without faults can be quickly replaced to quickly resume production and improve production efficiency.

[0035] Optionally, the embodiment of the present application provides a preferred splicing connection method between the first barrel section 1, the third barrel section 3, and the second barrel section 2, specifically: the first barrel section 1 is provided with a first flange 4 on the side facing the third barrel section 3, the second barrel section 2 is provided with a second flange 5 on the side facing the third barrel section 3, and the third barrel section 3 is provided with a third flange 6 and a fourth flange 7 on the left and right sides, respectively. In this way, the first barrel section 1 and the third barrel section 3 are spliced ​​together by the first flange 4 and the third flange 6; multiple sections of the third barrel section 3 are spliced ​​together by the fourth flange 7 of the front third barrel section 3 and the third flange 6 of the rear third barrel section 3; and the second barrel section 2 and the third barrel section 3 are spliced ​​together by the second flange 5 and the fourth flange 7.

[0036] Preferably, in order to coaxially position the first barrel section 1, the third barrel section 3, and the second barrel section 2 when splicing, and to enable them to rotate synchronously, the fourth flange 7 is radially evenly distributed on the side facing the second flange 5 or the third flange 6 on a plurality of fourth flange surface grooves 702 and fourth flange surface protrusions 703; the second flange 5 is provided on the side facing the fourth flange 7 with second flange surface protrusions that are adapted to the fourth flange surface grooves 702 in number and position, and second flange surface grooves that are adapted to the fourth flange surface protrusions 703 in number and position; the third flange 6 is provided on the side facing the fourth flange 7 with third flange surface protrusions that are adapted to the fourth flange surface grooves 702 in number and position, and third flange surface grooves that are adapted to the fourth flange surface protrusions 703 in number and position; the first flange 4 is provided on the side facing the third flange 6 with first flange surface protrusions that are adapted to the third flange surface grooves in number and position, and first flange surface grooves that are adapted to the third flange surface protrusions in number and position. In this way, during splicing, the first flange surface protrusion is embedded in the third flange surface groove, and the third flange surface protrusion is embedded in the first flange surface groove, so that the first barrel section 1 and the third barrel section 3 are coaxial and firmly spliced; the fourth flange surface protrusion 703 is embedded in the third flange surface groove, and the third flange surface protrusion is embedded in the fourth flange surface groove 702, so that the multiple sections of the third barrel section 3 are coaxial and firmly spliced; the fourth flange surface protrusion 703 is embedded in the third flange surface groove, and the second flange surface protrusion is embedded in the fourth flange surface groove 702, so that the third barrel section 3 and the second barrel section 2 are coaxial and firmly spliced.

[0037] Preferably, in order to further improve the coaxiality of the first cylinder section 1, the third cylinder section 3, and the second cylinder section 2 when splicing, and also to improve the sealing of the spliced ​​cylinder, the third flange 6 is provided with an annular third flange boss 601 on the side facing the first flange 4 or the fourth flange 7; the fourth flange 7 is provided with a fourth flange groove 701 that is adapted to the third flange boss 601 on the side facing the third flange 6 or the second flange 5; the first flange 4 is provided with a first flange groove that is adapted to the third flange boss 601 on the side facing the third flange 6; and the second flange 5 is provided with a second flange boss that is adapted to the fourth flange groove 701 on the side facing the fourth flange 7. In this way, during splicing, the third flange boss 601 can be embedded in the first flange groove, so that the first barrel section 1 and the third barrel section 3 are coaxially positioned from the radial direction; the third flange boss 601 can be embedded in the fourth flange groove 701, so that multiple sections of the third barrel section 3 are coaxially positioned from the radial direction; the second flange boss can be embedded in the fourth flange groove 701, so that the third barrel section 3 and the second barrel section 2 are coaxially positioned from the radial direction.

[0038] Preferably, in order to prevent the gaps at the joints from causing material falling and to improve the sealing of the spliced ​​cylinder, the left side surface of the ceramic inner liner 11 of the third cylinder section 3 is provided with an annular third cylinder ceramic surface groove 1101, and the right side surface of the ceramic inner liner 11 of the third cylinder section 3 is provided with a third cylinder ceramic surface boss 1102 adapted to the third cylinder ceramic surface groove 1101; the right side surface of the ceramic inner liner 11 of the first cylinder section 1 is provided with a first cylinder ceramic surface boss adapted to the third cylinder ceramic surface groove 1101; the left side surface of the ceramic inner liner 11 of the second cylinder section 2 is provided with a second cylinder ceramic surface groove adapted to the third cylinder ceramic surface boss 1102. During splicing, the ceramic surface boss of the first cylinder is embedded in the ceramic surface groove 1101 of the third cylinder to avoid material falling at the joint of the first cylinder section 1 and the third cylinder section 3; the ceramic surface boss 1102 of the third cylinder is embedded in the ceramic surface groove 1101 of the third cylinder to avoid material falling at the joint between multiple sections of the third cylinder section 3; the ceramic surface boss 1102 of the third cylinder is embedded in the ceramic surface groove of the second cylinder to avoid material falling at the joint of the second cylinder section 2 and the third cylinder section 3.

[0039] Preferably, the inner wall of the ceramic liner 11 is bonded with a ceramic anti-corrosion layer 12. The ceramic anti-corrosion layer 12 and the ceramic liner 11 can be bonded together using fire clay. The ceramic anti-corrosion layer 12 is made of a material that is resistant to high temperatures and does not precipitate metal at high temperatures, such as precision corundum ceramics, which effectively prevents the precipitation of metal foreign matter at high temperatures.

[0040] Preferably, in order to further improve the sealing performance of the cylinder of the present application, the space between the first cylinder section 1 and the third cylinder section 3, the space between multiple third cylinder sections 3, and the space between the second cylinder section 2 and the third cylinder section 3 are all filled with putty.

[0041] Furthermore, the present application also proposes a spliced ​​ceramic rotary kiln, such as Figures 5 to 7As shown, a base 13 is provided, and a rotary kiln barrel 14 is rotatably provided on the top surface of the base 13. Specifically, a rotary connection structure commonly used in rotary kilns in the prior art can be adopted, that is, rollers 19 are sleeved on the left and right sides of the outer wall of the rotary kiln barrel 14, and a pair of supporting wheels 20 are rotatably provided on the top surface of the base 13. The pair of supporting wheels 20 respectively support the rollers 19 on the left and right sides, and the rollers 19 can roll on the supporting wheels 20. In order to prevent the rotary kiln barrel 14 from expanding and contracting due to heat or shifting when tilted, stop wheels 21 are usually rotatably provided on the top surface of the base 13 on the left and right sides of the supporting wheels 20 facing the feed cover 15. The rolling ring 19 is located in the middle of the stop wheels 21 to limit the rolling ring 19. The arrangement of the stop wheels 21 is also an existing technology well known to those skilled in the art and will not be described in detail here. The rotary kiln barrel 14 selects the aforementioned ceramic rotary kiln barrel. A feed hood 15 is provided on the left side of the first barrel section 1, and a discharge hood 17 is provided on the right side of the second barrel section 2, for sealing the rotary kiln barrel 14. The specific structures of the feed hood 15 and the discharge hood 17, as well as their sealing methods with the rotary kiln barrel 14, are well known to those skilled in the art and will not be described in detail here. The feed hood 15 is equipped with a feeder 16 for conveying the material to be sintered into the rotary kiln barrel 14. A discharge port 18 is provided at the bottom of the discharge hood 17 for discharging the sintered material. The sintered material is discharged through the discharge port 18. A rotary drive device is also included to drive the rotary kiln barrel 14 to rotate. The drive device also adopts the drive structure commonly used in rotary kilns in the prior art. Specifically, a drive motor 25 is provided on the base 13, a ring gear is provided on the outer wall of the rotary kiln barrel 14, and a drive gear is provided on the output shaft of the drive motor 25. The drive gear meshes with the ring gear, driving the ring gear to rotate, thereby driving the rotary kiln barrel 14 to rotate.

[0042] Preferably, to prevent electrical wiring from becoming entangled during the rotation of the rotary kiln cylinder 14 and thus affecting production, a carbon brush holder 22 is provided on the top surface of the base 13. Carbon brushes are mounted on the carbon brush holder 22. A conductive slip ring 23 is sleeved around the rotary kiln cylinder 14. The carbon brushes and the conductive slip ring 23 fit together, and the electric heating element is electrically connected to the conductive slip ring 23. To facilitate wiring of the electric heating element, a junction box 24 is typically provided on each of the first cylinder section 1, the third cylinder section 3, and the second cylinder section 2. The electrical wiring between the electric heating element and the conductive slip ring 23 is located within the junction box 24, facilitating operation.

[0043] Alternatively, for a rotary kiln without a material moving device, the rotary kiln barrel 14 is usually tilted on the base 13. The present application provides a preferred structure for the tilted setting, specifically: it also includes a first adjustment arm 26 and at least one second adjustment arm 27. The top of the first adjustment arm 26 is hinged to the base 13 on the side facing the discharge cover 17. The top surface of the second adjustment arm 27 is rotatably provided with an adjustment seat 28. The top surface of the adjustment seat 28 is fixed with a height adjustment bolt. The end of the height adjustment bolt away from the adjustment seat 28 is threadedly connected to the bottom surface of the base 13 on the side facing the feed cover 15. In this way, by rotating the adjustment seat 28, the base 13 is raised or lowered under the action of the height adjustment bolt thread, thereby achieving the tilting of the base 13, and then tilting the rotary kiln barrel 14. To facilitate the rotation of the adjustment seat 28, a handle 29 is also provided on the adjustment seat 28.

[0044] The working principle of the spliced ​​ceramic rotary kiln in this application is:

[0045] When an electric heating element somewhere on the rotary kiln cylinder 14 fails, or the inner wall somewhere on the rotary kiln cylinder 14 falls off, the first cylinder segment 1, the third cylinder segment 3, or the second cylinder segment 2 where the problem occurs is determined, and the first cylinder segment 1, the third cylinder segment 3, or the second cylinder segment 2 is disassembled for repair and then installed.

[0046] The present application has been described in a relatively specific and detailed manner through general explanations and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations may be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained by such conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A spliced ​​ceramic rotary kiln shell, characterized in that: The rotary kiln comprises a first barrel section (1), at least one third barrel section (3) and a second barrel section (2); the first barrel section (1), the third barrel section (3) and the second barrel section (2) are spliced ​​together in sequence; the first barrel section (1), the second barrel section (2) and the third barrel section (3) all comprise an outer metal shell (8) and an inner ceramic liner (11); electric heating elements are provided in the ceramic liner (11) of the first barrel section (1), the second barrel section (2) and the third barrel section (3) for heating the material to be sintered in the rotary kiln barrel (14); a casting layer (10) and a thermal insulation layer (9) are filled in sequence from the inside to the outside between the metal shell (8) and the ceramic liner (11).

2. The spliced ​​ceramic rotary kiln shell according to claim 1, characterized in that: The first barrel section (1) is sleeved with a first flange (4) toward one side of the third barrel section (3); the second barrel section (2) is sleeved with a second flange (5) toward one side of the third barrel section (3); the third barrel section (3) is sleeved with a third flange (6) and a fourth flange (7) on the left and right sides respectively; the first barrel section (1) and the third barrel section (3) are spliced ​​and connected together through the first flange (4) and the third flange (6); multiple sections of the third barrel section (3) are spliced ​​and connected together through the fourth flange (7) of the front section of the third barrel section (3) and the third flange (6) of the rear section of the third barrel section (3); the second barrel section (2) and the third barrel section (3) are spliced ​​and connected together through the second flange (5) and the fourth flange (7).

3. The spliced ​​ceramic rotary kiln shell according to claim 2, characterized in that: The fourth flange (7) is provided with a plurality of fourth flange surface grooves (702) and fourth flange surface protrusions (703) uniformly distributed radially on the side surface of the second flange (5) or the third flange (6); the second flange (5) is provided with a second flange surface protrusion that matches the number and position of the fourth flange surface grooves (702) and a second flange surface groove that matches the number and position of the fourth flange surface protrusions (703) on the side surface of the fourth flange (7); the third flange (6) is provided with a third flange surface protrusion that matches the number and position of the fourth flange surface grooves (702) and a third flange surface groove that matches the number and position of the fourth flange surface protrusions (703) on the side surface of the fourth flange (7); the first flange (4) is provided with a first flange surface protrusion that matches the number and position of the third flange surface grooves and a first flange surface groove that matches the number and position of the third flange surface protrusions on the side surface of the third flange (6).

4. The spliced ​​ceramic rotary kiln shell according to claim 3, characterized in that: The third flange (6) is provided with an annular third flange boss (601) on the side facing the first flange (4) or the fourth flange (7); the fourth flange (7) is provided with a fourth flange groove (701) adapted to the third flange boss (601) on the side facing the third flange (6) or the second flange (5); the first flange (4) is provided with a first flange groove adapted to the third flange boss (601) on the side facing the third flange (6); the second flange (5) is provided with a second flange boss adapted to the fourth flange groove (701) on the side facing the fourth flange (7).

5. The spliced ​​ceramic rotary kiln shell according to claim 1, characterized in that: The left side surface of the ceramic inner liner (11) of the third barrel section (3) is provided with an annular third barrel ceramic surface groove (1101); the right side surface of the ceramic inner liner (11) of the third barrel section (3) is provided with a third barrel ceramic surface boss (1102) adapted to the third barrel ceramic surface groove (1101); the right side surface of the ceramic inner liner (11) of the first barrel section (1) is provided with a first barrel ceramic surface boss adapted to the third barrel ceramic surface groove (1101); the left side surface of the ceramic inner liner (11) of the second barrel section (2) is provided with a second barrel ceramic surface groove adapted to the third barrel ceramic surface boss (1102).

6. The spliced ​​ceramic rotary kiln shell according to claim 1, characterized in that: The inner wall of the ceramic liner (11) is bonded with a ceramic anti-corrosion layer (12).

7. The spliced ​​ceramic rotary kiln shell according to claim 1, characterized in that: The space between the first barrel section (1) and the third barrel section (3), the space between multiple sections of the third barrel section (3), and the space between the second barrel section (2) and the third barrel section (3) are all filled with clay.

8. A spliced ​​ceramic rotary kiln, comprising a base (13); a rotary kiln cylinder (14) is rotatably provided on the top surface of the base (13), characterized in that: The rotary kiln cylinder (14) is a ceramic rotary kiln cylinder according to any one of claims 1 to 7; a feed cover (15) is provided on the left side of the first cylinder section (1), and a discharge cover (17) is provided on the right side of the second cylinder section (2), for sealing the rotary kiln cylinder (14); the feed cover (15) is provided with a feeder (16) for conveying the material to be sintered into the rotary kiln cylinder (14); a discharge port (18) is provided at the bottom of the discharge cover (17); and a rotation drive device is also included for driving the rotary kiln cylinder (14) to rotate.

9. The spliced ​​ceramic rotary kiln according to claim 8, characterized in that: A carbon brush holder (22) is provided on the top surface of the base (13); a carbon brush is provided on the carbon brush holder (22); a conductive slip ring (23) is sleeved on the rotary kiln cylinder (14); the carbon brush and the conductive slip ring (23) are cut together; and the electric heating element is electrically connected to the conductive slip ring (23).

10. The spliced ​​ceramic rotary kiln according to claim 8, characterized in that: The utility model further comprises a first adjusting arm (26) and at least one second adjusting arm (27); the top of the first adjusting arm (26) is hingedly connected to the base (13) on the side facing the discharge cover (17); the top surface of the second adjusting arm (27) is rotatably provided with an adjusting seat (28); the top surface of the adjusting seat (28) is fixedly provided with a height adjustment bolt; the end of the height adjustment bolt away from the adjusting seat (28) is threadedly connected to the bottom surface of the base (13) on the side facing the feed cover (15).

Images