Cement kiln tertiary air pipe lining heat insulation layer convenient to replace quickly

Abstract

The cement kiln tertiary air pipe lining heat insulation layer convenient to replace quickly comprises a fire-resistant heat insulation layer, the fire-resistant heat insulation layer is cylindrical, a spigot is formed in one end of the fire-resistant heat insulation layer, an insertion block is arranged at the other end of the fire-resistant heat insulation layer, and at least three fixing sets are arranged on the outer side of the fire-resistant heat insulation layer; the fixing set is mainly composed of a mounting plate, a connecting plate, a first supporting leg, a second supporting leg, a two-way lead screw and a supporting plate. The mounting plate is arranged on the outer side of the fire-resistant heat insulation layer. Through the arrangement of the insertion blocks and the spigots on the fire-resistant heat-insulating layers, the two adjacent fire-resistant heat-insulating layers can be matched through the insertion blocks and the spigots, so that the two adjacent fire-resistant heat-insulating layers are connected, and through the arrangement of less than three fixing groups, the fire-resistant heat-insulating layers can be mounted on the inner wall of the cement kiln air pipe; therefore, the labor intensity of workers is reduced, and the replacement efficiency of the lining heat insulation layer is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cement kilns, and in particular to a cement kiln tertiary air duct lining insulation layer that is easy to quickly replace. Background Art

[0002] Cement kiln is an important equipment for producing cement. The refractory materials in the tertiary air duct of cement kiln need to withstand high temperature expansion stress, sulfur and alkali corrosion and fine clinker abrasion for a long time, which is seriously damaged and often needs to be replaced frequently. When replacing, workers need to splice refractory bricks one by one on the inner wall of cement kiln, which is time-consuming and laborious. Therefore, this application proposes a tertiary air duct lining insulation layer of cement kiln that is easy to replace quickly to solve such problems. Summary of the invention

[0003] The technical problem to be solved by the present application is to overcome the existing defects and provide a cement kiln tertiary air duct lining insulation layer that is easy to quickly replace, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a cement kiln tertiary air duct lining insulation layer that is easy to replace quickly, comprising a refractory insulation layer, the refractory insulation layer is cylindrical, a stopper is provided at one end of the refractory insulation layer, an insert is provided at the other end of the refractory insulation layer, and no less than three fixing groups are provided on the outside of the refractory insulation layer;

[0005] The fixing group is mainly composed of a mounting plate, a connecting plate, a first supporting leg, a second supporting leg, a bidirectional screw and a supporting plate. The mounting plate is arranged on the outside of the fire-resistant insulation layer, and two first supporting legs are movably connected on both sides of the mounting plate. The end of the first supporting leg away from the mounting plate is movably connected to the connecting plate, and the bottom of the connecting plate is movably connected to the supporting plate. The two connecting plates are connected to the bidirectional screw through two screw nuts.

[0006] Furthermore, the inner diameter of the stopper is consistent with the outer diameter of the insert block.

[0007] Furthermore, the number of the first supporting legs and the number of the second supporting legs are both two, and the first supporting legs and the second supporting legs are both H-shaped.

[0008] Furthermore, the support plate is mainly composed of an arc-shaped plate and a pad. The pad is arranged on the inner side of the arc-shaped plate, and the front and rear sides of the pad are movably connected to the second support leg.

[0009] Furthermore, an end plate is provided at one end of the bidirectional screw rod, and a hexagonal hole is provided on the end plate.

[0010] Furthermore, the number of the fire-resistant heat-insulating layers is not less than two, wherein the plug on one fire-resistant heat-insulating layer is connected to the stopper on another fire-resistant heat-insulating layer, and a protective plate is provided at the end of one fire-resistant heat-insulating layer.

[0011] Compared with the prior art: Through the arrangement of the insertion blocks and rabbets on the refractory and heat-insulating layer, the present application can make two adjacent refractory and heat-insulating layers cooperate with each other through the insertion blocks and rabbets, so as to connect the two adjacent refractory and heat-insulating layers. And through the arrangement of less than three fixing groups, the refractory and heat-insulating layer can be installed on the inner wall of the cement kiln air duct, thereby reducing the labor intensity of workers and improving the replacement efficiency of the inner lining heat-insulating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present application;

[0013] Figure 2 is a front view of the present application;

[0014] Figure 3 is Figure 2 a cross-sectional view taken along A-A in

[0015] Figure 4 a schematic installation diagram of the component protection plate.

[0016] In the figure: 1 refractory and heat-insulating layer, 2 rabbet, 3 insertion block, 4 mounting plate, 5 connecting plate, 6 first support leg, 7 second support leg, 8 backing plate, 9 arc plate, 10 double-headed lead screw, 11 end plate, 12 protection plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application (for the convenience of description and understanding, the following is described with Figure 3 the upper side as the upper side). All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] Please refer to Figures 1-4 , the present application provides a technical solution for the inner lining heat-insulating layer of the tertiary air duct of a cement kiln that is convenient for quick replacement: An inner lining heat-insulating layer of the tertiary air duct of a cement kiln that is convenient for quick replacement, including a refractory and heat-insulating layer 1, the refractory and heat-insulating layer 1 is cylindrical, one end of the refractory and heat-insulating layer 1 is provided with a rabbet 2, the other end of the refractory and heat-insulating layer 1 is provided with an insertion block 3, and the outside of the refractory and heat-insulating layer 1 is provided with no less than three fixing groups.

[0019] Specifically, through the arrangement of the insertion block 3 and the rabbet 2 on the refractory and heat-insulating layer 1, two adjacent refractory and heat-insulating layers 1 can be connected with each other through the cooperation of the insertion block 3 and the rabbet 2, and multiple refractory and heat-insulating layers 1 can be used in cooperation, which is suitable for cement kiln air ducts of different lengths.

[0020] The fixing group is mainly composed of a mounting plate 4, a connecting plate 5, a first supporting leg 6, a second supporting leg 7, a bidirectional screw 10 and a supporting plate. The mounting plate 4 is arranged on the outside of the fire-resistant insulation layer 1. Two first supporting legs 6 are movably connected on both sides of the mounting plate 4. The end of the first supporting leg 6 facing away from the mounting plate 4 is movably connected to the connecting plate 5. The bottom of the connecting plate 5 is movably connected to the support plate. The two connecting plates 5 are connected to the bidirectional screw 10 through two screw nuts.

[0021] Specifically, there are four fixed groups, which are evenly distributed on the outside of the refractory insulation layer 1. The arrangement of the four fixed groups enables the refractory insulation layer 1 to be installed on the inner wall of the cement kiln air duct, thereby reducing the labor intensity of workers and improving the replacement efficiency of the refractory insulation layer 1.

[0022] Furthermore, the inner diameter of the stopper 2 is consistent with the outer diameter of the insert block 3 .

[0023] Specifically, the number of the fire-resistant heat-insulating layers 1 is not less than two, the plug block 3 on one fire-resistant heat-insulating layer 1 is connected to the stop 2 on the other fire-resistant heat-insulating layer 1, and a protective plate 12 is provided at the end of one fire-resistant heat-insulating layer 1.

[0024] More specifically, by cooperating between the stoppers 2 and the inserts 3 on two adjacent refractory insulation layers 1, several refractory insulation layers 1 can be connected, so as to be suitable for cement kiln air ducts of different lengths. By setting the protective plate 12, the fixed group can be protected.

[0025] Furthermore, the number of the first supporting leg 6 and the number of the second supporting leg 7 are both two, and the first supporting leg 6 and the second supporting leg 7 are both H-shaped.

[0026] Specifically, the upper end of the H-shaped first supporting leg 6 is clamped on both sides of the mounting plate 4, and is rotatably connected to the mounting plate 4 through a rotating shaft. The lower end of the H-shaped first supporting leg 6 is clamped on both sides of the connecting plate 5, and is rotatably connected to the mounting plate 4 through a rotating shaft. The upper end of the H-shaped second supporting leg 7 is clamped on both sides of the connecting plate 5, and is rotatably connected to the mounting plate 4 through a rotating shaft. The upper end of the H-shaped second supporting leg 7 is clamped on both sides of the support plate, and is rotatably connected to the support plate through a rotating shaft.

[0027] Furthermore, the support plate is mainly composed of an arc plate 9 and a pad 8 . The pad 8 is arranged on the inner side of the arc plate 9 , and the front and rear sides of the pad 8 are movably connected to the second support leg 7 .

[0028] Specifically, the arrangement of the arc plate 9 facilitates the contact between the arc plate 9 and the inner wall of the air duct, thereby increasing the contact area between the arc plate 9 and the inner wall of the air duct and improving the stability of the fire-resistant insulation layer 1 .

[0029] Furthermore, an end plate 11 is provided at one end of the bidirectional screw rod 10 , and a hexagonal hole is provided on the end plate 11 .

[0030] Specifically, the end plate 11 is fixed to the end of the bidirectional lead screw 10 by bolts. Through the setting of the hexagonal socket holes on the end plate 11, a hexagonal socket wrench can be inserted into the hexagonal socket hole, and the hexagonal socket wrench is rotated to drive the end plate 11 and the bidirectional lead screw 10 to rotate, so that the two connecting plates 5 drive the two first support legs 6 and the second support legs 7 to move, thereby making the backing plate 8 approach or move away from the refractory insulation layer 1, facilitating the fixation or disassembly of the refractory insulation layer 1 by workers.

[0031] During use: First, place the first refractory insulation layer 1 (hereinafter referred to as the refractory insulation layer a1) on the lifting and moving cart and push it into the air duct. Subsequently, rotate the end plates 11 on the four fixing groups in sequence with a hexagonal socket wrench, so that the end plates 11 drive the bidirectional lead screw 10 to rotate, and the two connecting plates 5 drive the two first support legs 6 and the second support legs 7 to move, thereby moving the backing plate 8 away from the refractory insulation layer a1 and bringing the backing plate 8 into contact with the inner wall of the air duct, thus fixing the refractory insulation layer a1.

[0032] Subsequently, place another refractory insulation layer 1 (this refractory insulation layer 1 is referred to as the refractory insulation layer a2) on the lifting and moving cart and push it into the air duct, and make the insertion block 3 on the refractory insulation layer a2 cooperate with the rabbet 2 on the refractory insulation layer a1. If the insertion block 3 and the rabbet 2 do not correspond, the height of the refractory insulation layer a2 can be adjusted by the lifting and moving cart, and the end plates 11 on the two bottom fixing groups are rotated in sequence with a hexagonal socket wrench to adjust the angle of the refractory insulation layer a2, so as to insert the insertion block 3 on the refractory insulation layer a2 into the rabbet 2 on the refractory insulation layer a1.

[0033] When all the refractory insulation layers 1 are installed, install the protective layer 12 on the outermost refractory insulation layer 1.

[0034] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cement kiln tertiary air duct lining insulation layer that is easy to replace quickly, characterized in that: The fireproof heat-insulating layer (1) is cylindrical, a stopper (2) is provided at one end of the fireproof heat-insulating layer (1), an insert (3) is provided at the other end of the fireproof heat-insulating layer (1), and no less than three fixing groups are provided on the outer side of the fireproof heat-insulating layer (1); The fixing group mainly consists of a mounting plate (4), a connecting plate (5), a first supporting leg (6), a second supporting leg (7), a bidirectional screw (10) and a supporting plate. The mounting plate (4) is arranged outside the fire-resistant insulation layer (1). Two first supporting legs (6) are movably connected to both sides of the mounting plate (4). One end of the first supporting leg (6) facing away from the mounting plate (4) is movably connected to the connecting plate (5). The bottom of the connecting plate (5) is movably connected to the supporting plate. The two connecting plates (5) are connected to the bidirectional screw (10) via two screw nuts.

2. The thermal insulation layer of the tertiary air duct of a cement kiln that is easy to replace quickly according to claim 1 is characterized in that: The inner diameter of the stopper (2) is consistent with the outer diameter of the insert block (3).

3. The thermal insulation layer of the tertiary air duct of a cement kiln that is easy to replace quickly according to claim 1 is characterized in that: The number of the first supporting leg (6) and the number of the second supporting leg (7) are both two, and the first supporting leg (6) and the second supporting leg (7) are both H-shaped.

4. The thermal insulation layer of the cement kiln tertiary air duct lining that is easy to replace quickly according to claim 1 is characterized in that: The support plate mainly consists of an arc-shaped plate (9) and a pad (8); the pad (8) is arranged on the inner side of the arc-shaped plate (9); and the front and rear sides of the pad (8) are movably connected to the second support leg (7).

5. The thermal insulation layer of the tertiary air duct of a cement kiln that is easy to replace quickly according to claim 1 is characterized in that: An end plate (11) is provided at one end of the bidirectional screw rod (10), and a hexagonal hole is provided on the end plate (11).

6. The lining insulation layer of the cement kiln tertiary air duct that is easy to replace quickly according to claim 1 is characterized in that: The number of the fire-resistant heat-insulating layers (1) is not less than two, the plug block (3) on one fire-resistant heat-insulating layer (1) is connected to the stopper (2) on another fire-resistant heat-insulating layer (1), and a protective plate (12) is provided at the end of one fire-resistant heat-insulating layer (1).

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