Cyclone cylinder in preheater of cement kiln

Abstract

The utility model particularly relates to an inner cyclone cylinder of a cement kiln preheater, which comprises a circular ring formed by encircling a plurality of fixed seats, a ceramic hanging piece group is fixedly arranged on the inner side of each fixed seat, the ceramic hanging piece group comprises a plurality of ceramic hanging pieces which are sequentially connected up and down, the lower ceramic hanging piece is hung on the lower part of the inner side surface of the upper ceramic hanging piece, and the upper ceramic hanging piece is connected with the lower part of the inner side surface of the lower ceramic hanging piece. A stable locking plate is arranged between the bottoms of the lowermost left-right adjacent ceramic hanging pieces; according to the utility model, the structure that the ceramic hanging piece groups are sequentially connected left and right is adopted to form the inner barrel, and meanwhile, the ceramic hanging piece groups consist of a plurality of ceramic hanging pieces which are longitudinally connected, so that part of the hanging pieces can be taken down and replaced when being damaged and needing to be replaced, and unnecessary waste of hanging piece materials is reduced; the depth of the inner cylinder can be adjusted by adjusting the connection number of the ceramic hanging pieces in the ceramic hanging piece set so as to adapt to preheaters with different depths, and the cyclone cylinder can be assembled more quickly by arranging the clamping pins and the clamping grooves for clamping connection.

Description

Technical Field

[0001] The utility model belongs to the technical field of cement production equipment, in particular to an inner cyclone of a cement kiln preheater. Background Art

[0002] The cyclone preheater for cement kiln is a raw material preheating device in the cement production line. The preheater is equipped with an inner cylinder (or cyclone cylinder). Due to the harsh working environment (high temperature, oxidation, corrosion, and wear), the inner cylinder is usually assembled with heat-resistant steel or other heat-resistant material hanging plates. Even so, the damaged hanging plates are still frequently replaced. A fixed frame can be set on the upper layer of the preheater, and a connecting plate can be set on the bottom layer for reinforcement. Then the hanging plates are laid between the upper fixed frame and the connecting plate, and at the same time, the inner wall of the inner cylinder tends to a cylindrical structure. If a single hanging strip is used to lay from top to bottom, it is easier to achieve a cylindrical structure for the inner wall of the inner cylinder. However, when a single hanging strip is damaged in a certain part and needs to be replaced, the entire hanging strip also needs to be replaced, which is extremely wasteful of materials and increases production costs. In addition, for existing equipment, it is time-consuming and labor-intensive to use bolts to connect various components when assembling the cyclone.

[0003] In order to solve the above problems, we provide an inner cylinder structure composed of multiple groups of ceramic hanging plates, which are connected in sequence to maintain the stability of the inner cylinder structure, and the height of the inner cylinder can be increased as needed. There is also an inner cyclone cylinder of a cement kiln preheater that is quickly assembled by using a snap-on structure. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide an inner cyclone of a cement kiln preheater.

[0005] The purpose of the utility model is achieved as follows: the inner cyclone of the cement kiln preheater includes a circular ring surrounded by a plurality of fixed seats, a ceramic hanging plate group is fixedly arranged on the inner side of each fixed seat, the ceramic hanging plate group includes a plurality of ceramic hanging plates connected in sequence up and down, the lower ceramic hanging plate is hung on the lower part of the inner side surface of the upper ceramic hanging plate, the inner side surfaces of the upper and lower connected ceramic hanging plates are connected and fit with each other, and a stable locking plate is arranged between the bottoms of the left and right adjacent ceramic hanging plates at the lowest part.

[0006] Furthermore, the inner side surface of the fixing seat is a concave arc surface.

[0007] Furthermore, the outer side surface of the ceramic hanging piece is an arc-shaped surface structure, and the upper part of the ceramic hanging piece and the concave arc-shaped surface of the inner side surface of the fixing seat fit each other.

[0008] Furthermore, the inner side surface of the ceramic hanging piece is a concave arc surface.

[0009] Furthermore, the upper portion of the inner side surface of the fixing seat is an inclined structure.

[0010] Furthermore, the fixing seat includes a fixing plate, a connecting plate, and an ear plate. A connecting plate is fixedly arranged on the upper outer surface of the fixing plate. The left and right sides of the connecting plate are respectively fixedly connected to the fixing seat through the ear plates. The inner side surface of the fixing plate is a concave arc surface. The fixing plate is connected to the ceramic hanging plate.

[0011] Furthermore, the fixing seat and the ceramic hanging piece are clamped together.

[0012] Furthermore, the upper and lower ceramic hanging sheets are clamped together.

[0013] Furthermore, the stabilizing locking plate and the ceramic hanging plate are snap-connected.

[0014] Furthermore, the ceramic hanger is a three-section structure, the upper section structure and the lower section structure are arranged parallel to each other, the upper section structure and the lower section structure are obliquely connected through the middle section, and after the upper and lower ceramic hangers are connected, the upper and lower edges of the inner side surfaces of the upper parts of adjacent ceramic hangers fit together.

[0015] Furthermore, the inner side surface of the stabilizing locking plate is a concave arc structure.

[0016] Furthermore, a plurality of latches are provided on the inner side surface of the lower portion of the ceramic hanging piece and the inner side surface of the fixing seat, and a plurality of slots are provided on the upper portion of the ceramic hanging piece and the stabilizing locking piece, and the latches are movably latched in the slots.

[0017] Furthermore, the upper surfaces of the ceramic hanger and the stabilizing lock plate are inclined structures inclined upward and inward, the inner side of the middle part of the ceramic hanger is an inclined structure inclined downward and outward, and after adjacent ceramic hangers are connected, the upper surface of the lower ceramic hanger and the inclined structure in the middle of the ceramic hanger fit together.

[0018] Furthermore, the latch and the slot are both inclined upward and inward at the same angle; the inclination angle of the inclined surface of the ceramic hanging plate and the stable locking plate and the inclination angle of the inner side surface in the middle of the ceramic hanging plate are the same as the inclination angle of the latch.

[0019] Furthermore, the upper portion of the inner side surface of the fixing seat protrudes inwards, the lower surface of the protruding structure is an upwardly inclined inclined surface structure, and the inclination angle of the inclined surface of the upper portion of the inner side surface of the fixing seat is the same as the inclination angle of the upper surface of the ceramic hanging piece.

[0020] When the utility model is used, the connecting plate on the fixing seat is fixedly connected to the inner wall of the preheater, that is, the connecting plate is connected to the preheater with stainless steel bolts through the connecting holes on the connecting plate, thereby ensuring the fixation of a circle of the fixing seat, which is conducive to the encirclement of the ceramic hanging plates below to form a barrel-shaped structure; the ceramic hanging plate is divided into an upper ceramic hanging plate and a lower ceramic hanging plate, and the upper ceramic hanging plate is connected to the fixing seat, that is, it is clamped with a corresponding number of clamping pins on the fixing seat through a plurality of clamping grooves arranged on the upper ceramic hanging plate; a plurality of lower ceramic hanging plates are sequentially connected below the upper ceramic hanging plate, and the lower ceramic hanging plates are sequentially clamped with each other through clamping pins and clamping grooves, and the lower ends of the lowest adjacent lower ceramic hanging plates are connected by a stabilizing locking plate, which can ensure that a stable barrel-shaped structure is formed between the ceramic hanging plates; the lowest ceramic hanging plate and the stabilizing locking plate are clamped with each other through a clamping pin and a clamping groove.

[0021] The latch pin and the latch slot are both inclined upward and inward, and the inclination angle is the same; the inclination angle of the upper surface of the ceramic hanging plate and the stable locking plate and the inclination angle of the inner side surface of the middle part of the ceramic hanging plate are the same as the inclination angle of the latch pin; and the inclination angle of the upper part of the inner side surface of the fixing seat is the same as the inclination angle of the upper surface of the ceramic hanging plate. The above inclination angles are the same for the convenience of realizing the clamping between the upper and lower parts, and avoiding interference during the clamping.

[0022] The ceramic hanger is a Z-shaped structure, and the difference in inner and outer distances between the upper structure and the lower structure of the ceramic hanger is equal to the thickness of the ceramic hanger; it can ensure that the inner side surfaces of the upper and lower adjacent ceramic hangers maintain the same arc-shaped surface structure after connection, ensure that the inner side surface of the cylindrical structure is a smooth surface structure, and when multiple upper and lower ceramic hangers are connected, the size of the barrel-like structure formed inside can still be maintained unchanged, ensuring that the inner wall is an arc-shaped structure, thereby reducing the resistance of the cyclone in the preheating cylinder during production.

[0023] Beneficial effects: The device adopts a structure in which ceramic hanging plates are connected in sequence on the left and right to form an inner cylinder. At the same time, the ceramic hanging plate group is composed of multiple longitudinally connected ceramic hanging plates. When some hanging plates are damaged and need to be replaced, they can be removed and replaced, reducing unnecessary waste of hanging plate materials; by adjusting the number of connections of ceramic hanging plates in the ceramic hanging plate group, the depth of the inner cylinder can be adjusted to adapt to preheaters of different depths. At the same time, a stable locking plate is arranged between the adjacent ceramic hanging plates on the left and right at the bottom to ensure that the inner cylinder structure remains stable. By setting a bayonet pin and a card slot for card connection, the cyclone cylinder can be assembled more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model.

[0025] Figure 2 It is a schematic diagram of the top view structure of the utility model.

[0026] Figure 3 It is a schematic diagram of the structure of a ceramic hanging piece group of the utility model.

[0027] Figure 4 It is a schematic diagram of the structure of the fixing seat of the utility model.

[0028] Figure 5 It is a schematic diagram of the inner structure of the fixing seat of the utility model.

[0029] Figure 6 It is a schematic diagram of the upper ceramic hanging piece structure of the utility model.

[0030] Figure 7 It is a schematic diagram of the inner structure of the upper ceramic hanging piece of the utility model.

[0031] Figure 8 It is a schematic diagram of the lower ceramic hanging piece structure of the utility model.

[0032] Fig. 9 It is a schematic diagram of the inner structure of the lower ceramic hanging piece of the utility model.

[0033] Fig.10 It is a schematic diagram of the structure of the stable locking piece of the utility model.

[0034] Description of reference numerals:

[0035] 1. Fixed seat, 2. Upper ceramic hanging plate, 3. Lower ceramic hanging plate, 4. Stable locking plate, 5. Connecting plate, 6. Pin. DETAILED DESCRIPTION

[0036] Embodiment 1, as Figure 1 As shown in FIG. 10 , the purpose of the utility model is achieved as follows: the inner cyclone of the cement kiln preheater includes a coaxial ring surrounded by a plurality of fixed seats 1, and a ceramic hanging plate group is fixedly arranged on the inner side of each fixed seat 1. The ceramic hanging plate group includes a plurality of ceramic hanging plates connected in sequence up and down, and the lower ceramic hanging plate is hung on the lower part of the inner side surface of the upper ceramic hanging plate. The inner side surfaces of the upper and lower connected ceramic hanging plates are connected and fit with each other, and a stabilizing locking plate 4 is arranged between the bottoms of the left and right adjacent ceramic hanging plates at the bottom, and the stabilizing locking plate 4 fixes and connects the left and right adjacent ceramic hanging plates at the bottom.

[0037] The inner side of the fixing seat 1 is a concave arc surface. The outer side of the ceramic hanging piece is a curved surface structure, and the upper part of the ceramic hanging piece fits with the concave arc surface of the inner side of the fixing seat 1. The inner side of the ceramic hanging piece is a concave arc surface. The upper part of the inner side of the fixing seat 1 is a slope structure. The inner and outer sides of the stabilizing lock piece 4 are both concave arc structures.

[0038] The fixing seat 1 includes a fixing plate, a connecting plate 5, and an ear plate. The connecting plate 5 is fixedly arranged on the upper part of the outer side surface of the fixing plate. The left and right sides of the connecting plate 5 are fixedly connected to the fixing seat 1 through the ear plates respectively. The inner side surface of the fixing plate is a concave arc surface, and the fixing plate is connected to the ceramic hanging piece.

[0039] The fixing seat 1 and the ceramic hanging piece are connected by a clamping arrangement. The upper and lower ceramic hanging pieces 3 are connected by a clamping arrangement. The stable locking piece 4 and the ceramic hanging piece are connected by a clamping arrangement. A plurality of clamping pins 6 are provided on the inner side surface of the lower part of the ceramic hanging piece and the inner side surface of the fixing seat 1, and a plurality of clamping slots are provided on the upper part of the ceramic hanging piece and the stable locking piece 4, and the clamping pins 6 are movably clamped in the clamping slots.

[0040] The upper surfaces of the ceramic hanging piece and the stable locking piece 4 are inclined structures inclined outward, and the inner side of the middle part of the ceramic hanging piece is an inclined structure inclined outward. After the adjacent ceramic hanging pieces are connected, the upper surface of the ceramic hanging piece at the lower part and the inclined structure of the middle part of the ceramic hanging piece fit each other. The latch 6 and the slot are both inclined upward and inward, and the inclination angle is the same; the inclination angle of the upper surface of the ceramic hanging piece and the stable locking piece 4 and the inclination angle of the inner side surface of the middle part of the ceramic hanging piece are the same as the inclination angle of the latch 6.

[0041] The upper portion of the inner side surface of the fixing seat 1 protrudes inwards, and the lower surface of the protruding structure is an inclined surface structure inclined upward. The inclination angle of the inclined surface of the upper portion of the inner side surface of the fixing seat 1 is the same as the inclination angle of the upper surface of the ceramic hanging piece.

[0042] The ceramic hanging piece has a three-section structure, the upper section structure and the lower section structure are arranged parallel to each other, the upper section structure and the lower section structure are obliquely connected through the middle section, the shape of the ceramic hanging piece tends to be a Z-shaped structure, and after the upper and lower ceramic hanging pieces are connected, the upper and lower edges of the inner sides of the upper parts of adjacent ceramic hanging pieces fit together.

[0043] When the utility model is used, the connecting plate 5 on the fixing seat 1 is fixedly connected to the inner wall of the preheater, that is, it is connected to the preheater with stainless steel bolts through the connecting holes, thereby ensuring the fixation of a circle of the fixing seat 1, which is conducive to the encirclement of the ceramic hanging plates below to form a barrel-shaped structure; the ceramic hanging plates are divided into an upper ceramic hanging plate 2 and a lower ceramic hanging plate 3, and the upper ceramic hanging plate 2 is connected to the fixing seat 1, that is, a plurality of card slots arranged on the upper ceramic hanging plate 2 are carded with a corresponding number of card pins 6 on the fixing seat 1; a plurality of lower ceramic hanging plates 3 are connected in sequence below the upper ceramic hanging plate 2, and the lower ceramic hanging plates 3 are carded in sequence with the card pins 6 and the card slots, and the lower ends of the adjacent lower ceramic hanging plates 3 at the bottom are connected by a stabilizing locking plate 4, which can ensure that a stable barrel-shaped structure is formed between the ceramic hanging plates; the lowest ceramic hanging plate and the stabilizing locking plate 4 are carded with the card pin 6 and the card slot.

[0044] The ceramic hanger is a Z-shaped structure, and the difference in inner and outer distances between the upper structure and the lower structure of the ceramic hanger is equal to the thickness of the ceramic hanger; it can ensure that the inner side surfaces of the upper and lower adjacent ceramic hangers maintain the same arc-shaped surface structure after connection, ensure that the inner side surface of the cylindrical structure is a smooth surface structure, and when multiple upper and lower ceramic hangers are connected, the size of the barrel-like structure formed inside can still be maintained unchanged, ensuring that the inner wall is an arc-shaped structure, thereby reducing the resistance of the cyclone in the preheating cylinder during production.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The inner cyclone of the cement kiln preheater comprises a ring surrounded by a plurality of fixed seats, characterized in that: A ceramic hanging plate group is fixedly arranged on the inner side of each fixing seat, and the ceramic hanging plate group includes a plurality of ceramic hanging plates connected in sequence up and down, the lower ceramic hanging plate is hung on the lower part of the inner side surface of the upper ceramic hanging plate, the inner side surfaces of the upper and lower connected ceramic hanging plates are connected and fit with each other, and a stable locking plate is arranged between the bottoms of the lowermost left and right adjacent ceramic hanging plates; A plurality of latches are arranged on the inner side surface of the lower part of the ceramic hanging piece and the inner side surface of the fixing seat, and a plurality of slots are arranged on the upper part of the ceramic hanging piece and the stable locking piece, and the latches are movably latched in the slots.

2. The cement kiln preheater inner cyclone according to claim 1, characterized in that The fixing seat includes a fixing plate, a connecting plate and an ear plate. A connecting plate is fixedly arranged on the upper part of the outer side surface of the fixing plate. The left and right sides of the connecting plate are fixedly connected to the fixing seat through the ear plates respectively. The inner side surface of the fixing plate is a concave arc surface. The fixing plate is connected to the ceramic hanging piece.

3. The cement kiln preheater inner cyclone according to claim 1, characterized in that The upper ceramic hanging plate and the lower ceramic hanging plate are arranged in a clamping connection.

4. The cement kiln preheater inner cyclone according to claim 3, characterized in that The fixing seat and the ceramic hanging piece are clamped together.

5. The cement kiln preheater inner cyclone according to claim 4, characterized in that The stable locking plate and the ceramic hanging plate are snap-connected.

6. The cement kiln preheater inner cyclone according to claim 1 or 5, characterized in that The ceramic hanging piece is a three-section structure, the upper section structure and the lower section structure are arranged parallel to each other, the upper section structure and the lower section structure are obliquely connected through the middle section, and after the upper and lower ceramic hanging pieces are connected, the upper and lower edges of the inner side surfaces of the upper parts of adjacent ceramic hanging pieces fit together.

7. The cement kiln preheater inner cyclone according to claim 1, characterized in that : The pin and the slot are both inclined upward and inward, and have the same inclination angle; the upper surfaces of the ceramic hanging plate and the stable locking plate are inclined toward the inner side and upward, and the inclination angle of the inclined surface of the upper surface of the ceramic hanging plate and the stable locking plate and the inclination angle of the inner side surface in the middle of the ceramic hanging plate are the same as the inclination angle of the pin.

8. The cement kiln preheater inner cyclone according to claim 7, characterized in that The inner side of the middle part of the ceramic hanging piece is an inclined surface structure inclined downward and outward, and after the adjacent ceramic hanging pieces are connected, the upper surface of the ceramic hanging piece at the lower part fits with the inclined surface structure in the middle part of the ceramic hanging piece.

9. The cement kiln preheater inner cyclone according to claim 8, characterized in that The upper portion of the inner side surface of the fixing seat protrudes inward, and the lower surface of the protruding structure is an upwardly inclined inclined surface structure. The inclination angle of the inclined surface of the upper portion of the inner side surface of the fixing seat is the same as the inclination angle of the upper surface of the ceramic hanging piece.

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