Tunnel kiln top structure with good heat preservation effect

Abstract

The utility model discloses a tunnel kiln top structure with a good heat preservation effect, which comprises an outer plate, a bottom plate is arranged on the bottom surface of the outer plate, an inner plate is arranged on the top surface of the inner side of the bottom plate, a heat absorption layer is filled between the inner plate and the outer plate, the outer plate and the bottom plate are both made of heat insulation materials, the inner plate is made of heat absorption materials, and the inner plate is made of heat absorption materials. A groove is formed in the bottom plate, a U-shaped seat is fixedly connected in the groove, the U-shaped seat is embedded in the heat absorption layer, a U-shaped block is connected in the U-shaped seat in a lifting mode, a plurality of rolling wheels are rotatably connected in the U-shaped block, and the two sides of the U-shaped seat are each connected with a buffer plate in a telescopic mode. The heat absorption layer is filled between the outer plate and the inner plate, the outer plate and the bottom plate are made of heat insulation materials, and the inner plate is made of heat absorption materials, so that the heat insulation effect and the temperature rising efficiency of the tunnel kiln are improved, and energy consumption during heating of the tunnel kiln is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel kilns, in particular to a tunnel kiln roof structure with good thermal insulation effect. Background Art

[0002] A tunnel kiln, constructed of refractory, insulation, and building materials, is a tunnel-like furnace equipped with a kiln car and other transport vehicles. It is a modern, continuous-firing thermal equipment. Widely used in the production of ceramic products, tunnel kilns are also used in metallurgical applications such as abrasives. A tunnel kiln is typically a long, linear tunnel with fixed walls and a vaulted ceiling. The kiln car runs on tracks at the bottom. Combustion equipment is located on either side of the tunnel kiln's center, forming a fixed, high-temperature zone—the firing zone. High-temperature flue gas generated by combustion flows through the tunnel toward the kiln head, driven by a chimney or induced draft fan at the front of the tunnel kiln. This zone gradually preheats the products entering the kiln, forming the preheating zone. Cold air is blown in at the rear of the tunnel kiln to cool the products entering the kiln. This cool air, after passing through the products and heating them, is then withdrawn and fed into a dryer, serving as a heat source for drying the greenware. This zone forms the cooling zone of the tunnel kiln.

[0003] At present, the existing tunnel kiln insulation wall has poor insulation effect, needs to burn a lot of fuel during baking, wastes resources, and is inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a tunnel kiln roof structure with good thermal insulation effect.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a tunnel kiln roof structure with good thermal insulation effect, comprising an outer plate, the bottom surface of the outer plate is provided with a bottom plate, the inner top surface of the bottom plate is provided with an inner plate, a heat absorption layer is filled between the inner plate and the outer plate, the outer plate and the bottom plate are both thermal insulation materials, the inner plate is heat absorption material, a groove is provided in the bottom plate, a U-shaped seat is fixedly connected in the groove, the U-shaped seat is embedded in the heat absorption layer, a U-shaped block is connected for lifting in the U-shaped seat, a plurality of equally spaced lifting motors are vertically fixed in the U-shaped seat, the end of each lifting motor is connected to a drive shaft for transmission, each drive shaft is vertically fixed to the top surface of the U-shaped block, a plurality of rollers are rotatably connected in the U-shaped block, and a buffer plate is telescopically connected on both sides of the U-shaped seat.

[0006] As a further description of the above technical solution: the top surface of the outer plate is fixedly connected to two mirror-symmetrical hanging ears, one side of the heat absorption layer is fixedly connected to two mirror-symmetrical T-shaped blocks, and the other side is provided with a T-shaped block, a threaded groove is provided on the outer side of the T-shaped block, and a through hole connected to the T-shaped groove is provided on the outside of the outer plate, and a plurality of equally spaced blind holes are vertically penetrated on both sides of the U-shaped seat, and a spring is vertically fixed in each of the blind holes, and the end of the spring is fixedly connected to a guide rod, which is axially slidably connected to the blind hole, and the guide rod is vertically fixed to the top surface of the buffer plate.

[0007] As a further description of the above technical solution: a plurality of equidistantly distributed first threaded steel bars are welded between the outer plate and the inner plate, a plurality of equidistantly distributed second threaded steel bars are vertically welded to the outside of the bottom layer of the first threaded steel bars, the ends of the second threaded steel bars are welded to the top surface of the bottom plate, and the outer plate and the inner plate are both welded to the top surface of the bottom plate.

[0008] As a further description of the above technical solution: the T-shaped block is made of metal and is welded to the outer edge of the second threaded steel bar.

[0009] As a further description of the above technical solution: the heat absorption layer is a mixture of glass fiber, wood and straw.

[0010] As a further description of the above technical solution: the thickness of the outer plate is greater than that of the inner plate, the thickness of the bottom plate is equal to that of the outer plate, the inner plate is made of aluminum alloy, and the bottom plate and the outer plate are both iron plates coated with aerogel on the outside.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the existing technology, the tunnel kiln roof structure with good thermal insulation effect improves the thermal insulation effect and heating efficiency of the tunnel kiln by filling a heat-absorbing layer between the outer plate and the inner plate, setting the outer plate and the bottom plate as a heat-insulating material, and setting the inner plate as a heat-absorbing material, thereby saving energy consumption when heating the tunnel kiln. The inner plate, the outer plate and the bottom plate are welded to each other through the first threaded steel bar and the second threaded steel bar, which improves the firmness and strength of the overall structure of the tunnel kiln. The T-slots, T-blocks and lifting ears are provided on the tunnel kiln, which facilitates the modular installation and disassembly of the entire tunnel kiln. The lifting ears are used for hoisting, and multiple tunnel kilns are spliced together through the T-blocks and T-slots. The bolts are passed through the through holes and the threaded grooves to fix the T-blocks in the T-slots. The overall length of the tunnel kiln can be flexibly adjusted, and the tunnel kiln is also conveniently moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of the tunnel kiln roof structure with good thermal insulation effect proposed by the utility model;

[0014] Figure 2 This is the main cross-sectional view of the overall structure of the tunnel kiln roof structure with good thermal insulation effect proposed by the utility model;

[0015] Figure 3 This is a side sectional view of the overall structure of the tunnel kiln roof structure with good thermal insulation effect proposed by the utility model;

[0016] Figure 4 The utility model proposes a tunnel kiln roof structure with good thermal insulation effect. Figure 3 A magnified view of the structure at point A.

[0017] Legend:

[0018] 1. Outer plate; 2. Lifting ear; 3. Inner plate; 4. T-shaped block; 5. Threaded groove; 6. Through hole; 7. Heat absorption layer; 8. First threaded steel bar; 9. Second threaded steel bar; 10. Bottom plate; 11. T-shaped groove; 12. U-shaped seat; 13. Groove; 14. Blind hole; 15. Spring; 16. Guide rod; 17. Buffer plate; 18. Roller; 19. U-shaped block; 20. Drive shaft; 21. Lifting motor. DETAILED DESCRIPTION

[0019] 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.

[0020] Reference Figures 1 to 4The utility model provides a tunnel kiln roof structure with good thermal insulation effect: it includes an outer plate 1, a bottom plate 10 is provided on the bottom surface of the outer plate 1, an inner plate 3 is provided on the inner top surface of the bottom plate 10, a heat absorbing layer 7 is filled between the inner plate 3 and the outer plate 1, and the heat absorbing layer 7 is a mixture of glass fiber, wood and straw. The outer plate 1 and the bottom plate 10 are both thermal insulation materials, the inner plate 3 is a heat absorbing material, the thickness of the outer plate 1 is greater than the thickness of the inner plate 3, the thickness of the bottom plate 10 is equal to the thickness of the outer plate 1, the inner plate 3 is made of aluminum alloy, and the bottom plate 10 is filled with a heat absorbing layer 7. The outer plate 1 and the inner plate 3 are both iron plates coated with aerogel on the outside. The top surface of the outer plate 1 is fixedly connected to two mirror-symmetrical lifting ears 2. One side of the heat absorption layer 7 is fixedly connected to two mirror-symmetrical T-shaped blocks 4. The other side is provided with a T-shaped block 4. The outer side of the T-shaped block 4 is provided with a threaded groove 5. The outer side of the outer plate 1 is provided with a through hole 6 connected to the T-shaped groove 11. A plurality of equidistantly distributed first threaded steel bars 8 are welded between the outer plate 1 and the inner plate 3. A plurality of equidistantly distributed second threaded steel bars are vertically welded to the outside of the first threaded steel bar 8 of the bottom layer. 9. The end of the second threaded steel bar 9 is welded to the top surface of the bottom plate 10. The outer plate 1 and the inner plate 3 are welded to the top surface of the bottom plate 10. The T-shaped block 4 is made of metal and welded to the outer edge of the second threaded steel bar 9. A groove 13 is opened in the bottom plate 10. The U-shaped seat 12 is fixedly connected in the groove 13. The U-shaped seat 12 is embedded in the heat absorption layer 7. The U-shaped seat 12 is lifted and connected to the U-shaped block 19. A plurality of equally spaced lifting motors 21 are vertically fixed in the U-shaped seat 12. The end of each lifting motor 21 is connected to the transmission A drive shaft 20, each drive shaft 20 is vertically fixed on the top surface of the U-shaped block 19, and multiple rollers 18 are rotatably connected in the U-shaped block 19. A buffer plate 17 is telescopically connected to each side of the U-shaped seat 12. Multiple equally spaced blind holes 14 are vertically passed through both sides of the U-shaped seat 12. A spring 15 is vertically fixed in each blind hole 14. The end of the spring 15 is fixedly connected to the guide rod 16, which is axially slidably connected in the blind hole 14 and is vertically fixed to the top surface of the buffer plate 17.

[0021] By filling the heat-absorbing layer 7 between the outer plate 1 and the inner plate 3, and setting the outer plate 1 and the bottom plate 10 as heat-insulating materials, and setting the inner plate 3 as heat-absorbing materials, the heat preservation effect and the heating efficiency of the tunnel kiln are improved, and the energy consumption when heating the tunnel kiln is saved. The inner plate 3, the outer plate 1 and the bottom plate 10 are welded together by the first threaded steel bar 8 and the second threaded steel bar 9, which improves the firmness and strength of the overall structure of the tunnel kiln. The T-shaped slot 11, the T-shaped block 4 and the lifting lug 2 are provided on the tunnel kiln to facilitate the modular installation and disassembly of the entire tunnel kiln. By using the lifting lug 2 for hoisting, multiple tunnel kilns are spliced together through the T-shaped block 4 and the T-shaped slot 11. After the bolts are passed through the through hole 6 and the threaded groove 5, the T-shaped block 4 is fixed in the T-shaped slot 11. The overall length of the tunnel kiln can be flexibly adjusted. By fixing a U-shaped seat 12 on the bottom plate 10, a U-shaped block 19 with rollers 18 is connected to the U-shaped seat 12 by lifting and lowering to facilitate the movement of the tunnel kiln. A buffer plate 17 is telescopically connected to both sides of the bottom surface of the U-shaped seat 12 to buffer and absorb the impact force generated when the tunnel is descending.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tunnel kiln roof structure with good thermal insulation effect, comprising an outer plate (1), characterized in that: The bottom surface of the outer plate (1) is provided with a bottom plate (10), the inner top surface of the bottom plate (10) is provided with an inner plate (3), a heat absorbing layer (7) is filled between the inner plate (3) and the outer plate (1), the outer plate (1) and the bottom plate (10) are both made of thermal insulation materials, the inner plate (3) is made of heat absorbing material, a groove (13) is provided in the bottom plate (10), a U-shaped seat (12) is fixedly connected in the groove (13), and the U-shaped seat (12) is embedded in the heat absorbing layer (7) The U-shaped seat (12) is connected to a U-shaped block (19) in a lifting manner. A plurality of equally spaced lifting motors (21) are vertically fixed in the U-shaped seat (12). The end of each lifting motor (21) is connected to a drive shaft (20). Each drive shaft (20) is vertically fixed to the top surface of the U-shaped block (19). A plurality of rollers (18) are rotatably connected in the U-shaped block (19). A buffer plate (17) is telescopically connected to each side of the U-shaped seat (12).

2. The tunnel kiln roof structure with good thermal insulation effect according to claim 1 is characterized in that: The top surface of the outer plate (1) is fixedly connected to two mirror-symmetrical hanging ears (2), one side of the heat absorption layer (7) is fixedly connected to two mirror-symmetrical T-shaped blocks (4), and the other side is provided with a T-shaped block (4), the outer side of the T-shaped block (4) is provided with a threaded groove (5), the outside of the outer plate (1) is provided with a through hole (6) connected to the T-shaped groove (11), and a plurality of equally spaced blind holes (14) are vertically passed through both sides of the U-shaped seat (12), and a spring (15) is vertically fixed in each blind hole (14), and the end of the spring (15) is fixedly connected to a guide rod (16), and the guide rod (16) is axially slidably connected in the blind hole (14), and the guide rod (16) is vertically fixed to the top surface of the buffer plate (17).

3. The tunnel kiln roof structure with good thermal insulation effect according to claim 2 is characterized in that: A plurality of equally spaced first threaded steel bars (8) are welded between the outer plate (1) and the inner plate (3); a plurality of equally spaced second threaded steel bars (9) are vertically welded to the outside of the first threaded steel bars (8) at the bottom layer; the ends of the second threaded steel bars (9) are welded to the top surface of the bottom plate (10); and the outer plate (1) and the inner plate (3) are both welded to the top surface of the bottom plate (10).

4. The tunnel kiln roof structure with good thermal insulation effect according to claim 3 is characterized in that: The T-shaped block (4) is made of metal and is welded to the outer edge of the second threaded steel bar (9).

5. The tunnel kiln roof structure with good thermal insulation effect according to claim 1 is characterized in that: The heat absorption layer (7) is a mixture of glass fiber, wood and straw.

6. The tunnel kiln roof structure with good thermal insulation effect according to claim 1 is characterized in that: The thickness of the outer plate (1) is greater than that of the inner plate (3), the thickness of the bottom plate (10) is equal to that of the outer plate (1), the inner plate (3) is made of aluminum alloy, and the bottom plate (10) and the outer plate (1) are both iron plates with aerogel coated on the outside.

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