Tertiary air pipe nano-plate heat preservation assembly

Through the combined structure of nano-insulated tubes and refractory brick tubes, combined with threaded connections and semi-circular plate design, the problem of large heat loss in tertiary air ducts is solved, and heat recycling and improved insulation effect are achieved.

CN223345945UActive Publication Date: 2025-09-16HANZHONG YAOBAI CEMENT CO LTD
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Patent Information

Application Number
CN202422447712.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-09-16
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

Calcium silicon board is used for insulation between the refractory bricks and the shell of the tertiary air duct, which has a high thermal conductivity coefficient, resulting in high surface temperature of the tertiary air duct cylinder, large heat dissipation and serious heat loss.

Method used

The combined structure of nano-insulated tubes and refractory brick tubes, combined with the design of threaded connections and semi-circular plates, allows for easy installation and disassembly, and utilizes the pipes to absorb the lost heat for reuse.

Benefits of technology

It reduces heat loss, realizes heat recycling, and improves the thermal insulation effect of the tertiary air duct.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223345945U_ABST
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Abstract

The utility model relates to the technical field of cement production, in particular to a tertiary air pipe nanometer plate heat preservation assembly. According to the technical scheme, the air pipe comprises a mounting disc, an air pipe body, a semicircular plate, a threaded circular ring, a bolt and a pipeline, threaded grooves are formed in the two sides of the air pipe body correspondingly, a second pipe hole is formed in one side of the inner wall of each threaded groove, a plurality of nanometer heat insulation pipes are inserted into the second pipe holes, and third pipe holes are formed in one sides of the nanometer heat insulation pipes; refractory brick pipes are inserted into the third pipe holes, first pipe holes are formed in one sides of the refractory brick pipes, and the upper end and the lower end of the outer wall of the air pipe body are sleeved with semicircular plates correspondingly. The nano heat insulation pipe has the advantages that the nano heat insulation pipe can be conveniently mounted and dismounted, the heat loss is reduced, and the lost heat can be recycled at the same time.
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Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a tertiary air duct nanoplate insulation component. Background Art

[0002] Cement is a common building material and a powdery, water-hardening substance. It is mainly made by grinding and mixing raw materials such as limestone, clay, and iron ore in a certain proportion. When cement is mixed with water, a cement hydration reaction occurs to produce a hardened solid, namely "cement slurry", which has adhesive properties. Cement is commonly used in concrete, mortar, and other constructions to bond and solidify other materials, and is used in projects such as building structures and roads. The firing of tertiary air ducts in cement production refers to a key part of the cement production process, which is used to calcine raw materials such as limestone at high temperatures to produce cement clinker. Calcium silicate board is used for insulation between the refractory bricks and the shell of the tertiary air duct. The thermal conductivity of the calcium silicate board is relatively high. The surface temperature of the tertiary air duct cylinder is 130-150℃, which has large heat dissipation and high heat loss.

[0003] A Chinese patent discloses a tertiary air duct for a cement calcining kiln (authorization announcement number CN203869531U). The patented technology mainly includes an air duct and a wear-resistant layer. The wear-resistant layer is located on the side with a larger radius at the turning point of the air duct. Its length is equal to the arc length of the inner diameter of the air duct at the turning point, and its width is half the circumference of the inner diameter of the air duct. The wear-resistant layer is assembled with ceramic tiles or alloy wear-resistant cast iron blocks. The thickness of the wear-resistant layer is more than twice the thickness of the tertiary air duct wall, which can prevent the tertiary air duct from being easily damaged due to high-speed wind containing dust damaging the turning point of the tertiary air duct, reducing downtime and saving operating costs.

[0004] However, this patent still has shortcomings. The tertiary air duct uses calcium silicate board for insulation between the refractory bricks and the shell. This board has a relatively high thermal conductivity, and the surface temperature of the tertiary air duct is 130-150°C, which results in significant heat dissipation and high heat loss. Therefore, those skilled in the art have proposed a nano-sheet insulation assembly for the tertiary air duct to address the issues raised in the background art. Utility Model Content

[0005] The purpose of the utility model is to provide a tertiary air duct nano-plate insulation component, which has the advantages of easy installation and disassembly of the nano-insulation tube, reducing heat loss, and reusing the lost heat. It solves the problem of using silicon calcium board for insulation between the refractory bricks and the shell of the tertiary air duct, the thermal conductivity of the silicon calcium board is relatively high, the surface temperature of the tertiary air duct cylinder is 130-150℃, the heat dissipation is large, and the heat loss is high.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tertiary air duct nanoplate insulation component, comprising a mounting plate, an air duct body, a semicircular plate, a threaded ring, a bolt and a pipe, wherein thread grooves are respectively provided on both sides of the air duct body, a second pipe hole is provided on one side of the inner wall of the thread groove, a plurality of nano-insulation tubes are inserted into the second pipe hole, a third pipe hole is provided on one side of the nano-insulation tube, a refractory brick tube is inserted into the third pipe hole, a first pipe hole is provided on one side of the refractory brick tube, and a semicircular plate is respectively sleeved on the upper and lower ends of the outer wall of the air duct body.

[0007] Preferably, a circular hole is formed on one side of the threaded ring, and the threaded ring is inserted into the threaded groove formed on the air duct body and is threadedly connected. By inserting the threaded ring into the threaded groove and being threadedly connected, the threaded ring is easily installed and removed, and the nano thermal insulation tube is also easily installed and removed.

[0008] Preferably, a second circular hole is opened on one side of the mounting plate, and one side of the outer wall of the air duct body extends into the second circular hole and is fixed. A mounting hole is opened on one side of the mounting plate. The second circular hole facilitates the insertion and fixing of one side of the air duct body, and the mounting hole facilitates the installation of the air duct body.

[0009] Preferably, a circular hole three is opened on one side of the semicircular plate, and the circular hole three is passed through one side of the air duct body. The circular hole three facilitates the air duct body to pass through, so that the two semicircular plates can fit the air duct body and wrap the outer wall of the air duct body.

[0010] Preferably, the semicircular plate has a receiving groove formed inside, and a circular hole four is formed at the upper end of the outer wall of the semicircular plate, into which the lower end of the outer wall of the pipe is inserted and fixed. The circular hole four facilitates the insertion and fixation of the pipe, and the pipe can guide water into the receiving groove, so that the heat on the outer wall of the air duct body can be absorbed and the water can be heated for utilization.

[0011] Preferably, the front and rear ends of the semicircular plate are respectively fixed with fixing plates, the upper surface of the fixing plates is provided with threaded holes, the bottom ends of the bolts pass through the threaded holes and are threadedly connected, and the bottom ends of the bolts pass through the nuts and are threadedly connected. By passing the bottom ends of the bolts through the threaded holes and are threadedly connected, and the bottom ends of the bolts pass through the nuts and are threadedly connected, the two semicircular plates can be easily installed and removed.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model inserts multiple nano thermal insulation tubes into the second tube hole, a third tube hole is opened on one side of the nano thermal insulation tube, a refractory brick tube is inserted into the third tube hole, a first tube hole is opened on one side of the refractory brick tube, and the upper and lower ends of the outer wall of the air duct body are respectively sleeved with semicircular plates. When it is necessary to reduce the heat loss of the tertiary air duct, the nano thermal insulation tube is inserted into the second tube hole, and then the refractory brick tube is inserted into the third tube hole. The upper and lower ends of the outer wall of the air duct body are respectively fitted with the semicircular plates, and water is guided into the holding tank, thereby facilitating the installation and disassembly of the nano thermal insulation tube, reducing heat loss, and reusing the lost heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the air duct body of the present utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the threaded ring of the present utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the mounting plate of the present invention;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the semicircular plate of the present invention.

[0019] In the figure: 1. Mounting plate; 2. Duct body; 3. Semicircular plate; 4. Refractory brick tube; 5. Nano-insulated tube; 6. Threaded groove; 7. Pipe hole one; 8. Pipe hole two; 9. Pipe hole three; 10. Threaded ring; 11. Round hole one; 12. Round hole two; 13. Mounting hole; 14. Fixing plate; 15. Bolt; 16. Receiving groove; 17. Pipe; 18. Threaded hole; 19. Nut; 20. Round hole three; 21. Round hole four. DETAILED DESCRIPTION

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

[0021] See also Figures 1 to 5The utility model provides an embodiment: a three-stage air duct nanoplate insulation component, including a mounting plate 1, an air duct body 2, a semicircular plate 3, a threaded ring 10, a bolt 15 and a pipe 17. The air duct body 2 is respectively provided with a threaded groove 6 on both sides, and a second circular hole 12 is provided on one side of the mounting plate 1. One side of the outer wall of the air duct body 2 extends into the second circular hole 12 and is fixed. A mounting hole 13 is provided on one side of the mounting plate 1. The second circular hole 12 facilitates the insertion and fixing of one side of the air duct body 2. The mounting hole 13 facilitates the installation of the air duct body 2. The threaded groove 6. A second pipe hole 8 is provided on one side of the inner wall, and a first round hole 11 is provided on one side of the threaded ring 10. The threaded ring 10 extends into the threaded groove 6 provided on the air duct body 2 and is threadedly connected. The threaded ring 10 extends into the threaded groove 6 and is threadedly connected, which facilitates the installation and disassembly of the threaded ring 10 and the installation and disassembly of the nano-insulation tube 5. A plurality of nano-insulation tubes 5 are inserted into the pipe hole 2 8. A third pipe hole 9 is provided on one side of the nano-insulation tube 5. The refractory brick tube 4 is inserted into the pipe hole 3 9. A pipe hole 7 is provided on one side of the refractory brick tube 4.

[0022] The upper and lower ends of the outer wall of the air duct body 2 are respectively sleeved with a semicircular plate 3, a circular hole three 20 is opened on one side of the semicircular plate 3, and the circular hole three 20 is passed through one side of the air duct body 2. A holding groove 16 is opened inside the semicircular plate 3, and a circular hole four 21 is opened on the upper end of the outer wall of the semicircular plate 3. The lower end of the outer wall of the pipe 17 extends into the circular hole four 21 and is fixed. The front and rear ends of the semicircular plate 3 are respectively fixed with a fixing plate 14, and a threaded hole 18 is opened on the upper surface of the fixing plate 14. The bottom end of the bolt 15 passes through the threaded hole 18 and is threadedly connected. The bottom end of the bolt 15 passes through the nut 19 and is screwed. The circular hole 20 is used to facilitate the passage of the air duct body 2, so that the two semicircular plates 3 can fit the air duct body 2 and wrap the outer wall of the air duct body 2. The circular hole 21 is used to facilitate the insertion and fixation of the pipe 17. The pipe 17 can guide water into the holding groove 16, so that the heat on the outer wall of the air duct body 2 can be absorbed and the water can be heated and utilized. The bottom end of the bolt 15 passes through the threaded hole 18 and is threadedly connected. The bottom end of the bolt 15 passes through the nut 19 and is threadedly connected, which facilitates the installation and disassembly of the two semicircular plates 3.

[0023] To reduce tertiary duct heat loss, multiple nano-insulated tubes 5 are inserted into tube hole 2 8, followed by a refractory brick tube 4 into tube hole 3 9. A threaded ring 10 is inserted into the threaded groove 6 and threadedly connected. Then, one side of the duct body 2 is threaded through the third hole 20. Semicircular plates 3 are attached to the upper and lower ends of the duct body 2's outer wall. Water is then directed into the holding tank 16 via a pipe 17. The water in the holding tank 16 absorbs the lost heat. This facilitates the installation and removal of the nano-insulated tubes 5, reduces heat loss, and allows for the reuse of lost heat.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A tertiary air duct nanoplate insulation assembly, comprising a mounting plate (1), an air duct body (2), a semicircular plate (3), a threaded ring (10), a bolt (15) and a pipe (17), characterized in that: The air duct body (2) is provided with a thread groove (6) on both sides, and a second tube hole (8) is provided on one side of the inner wall of the thread groove (6). A plurality of nano thermal insulation tubes (5) are inserted into the second tube hole (8). A third tube hole (9) is provided on one side of the nano thermal insulation tube (5). A refractory brick tube (4) is inserted into the third tube hole (9). A first tube hole (7) is provided on one side of the refractory brick tube (4). The upper and lower ends of the outer wall of the air duct body (2) are respectively sleeved with a semicircular plate (3).

2. The nanoplate insulation assembly for tertiary air ducts according to claim 1, characterized in that: A circular hole (11) is provided on one side of the threaded ring (10), and the threaded ring (10) extends into a threaded groove (6) provided on the air duct body (2) and is threadedly connected.

3. The nanoplate insulation assembly for tertiary air ducts according to claim 1, characterized in that: A second circular hole (12) is provided on one side of the installation plate (1), and one side of the outer wall of the air duct body (2) extends into the second circular hole (12) and is fixed thereto. A mounting hole (13) is provided on one side of the installation plate (1).

4. The nanoplate insulation assembly for tertiary air ducts according to claim 1, characterized in that: A circular hole three (20) is provided on one side of the semicircular plate (3), and a circular hole three (20) is passed through one side of the air duct body (2).

5. The nanoplate insulation assembly for tertiary air ducts according to claim 1, characterized in that: A holding groove (16) is provided inside the semicircular plate (3), a circular hole (21) is provided at the upper end of the outer wall of the semicircular plate (3), and the lower end of the outer wall of the pipe (17) extends into the circular hole (21) and is fixed.

6. The nanoplate insulation assembly for tertiary air ducts according to claim 5, characterized in that: The front and rear ends of the semicircular plate (3) are respectively fixed with fixing plates (14), the upper surface of the fixing plate (14) is provided with a threaded hole (18), the bottom end of the bolt (15) passes through the threaded hole (18) and is threadedly connected, and the bottom end of the bolt (15) passes through the nut (19) and is threadedly connected.

Citation Information

Patent Citations

  • Tertiary air duct of cement calcining kiln

    CN203869531U