A kiln ventilation control device

By employing a worm gear, worm wheel, rotating gear, and adjusting disc transmission structure in the kiln ventilation control device, precise adjustment of the fan blade angle is achieved, solving the problem of insufficient adjustment accuracy in existing devices and improving the accuracy of ventilation volume control and product consistency.

CN224415781UActive Publication Date: 2026-06-26SICHUAN ZHAODI CEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ZHAODI CEMENT CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing kiln ventilation control devices have limited adjustment precision, making it difficult to meet the needs of precise control. Furthermore, they are prone to wear and deformation during long-term use, affecting product consistency and airflow distribution.

Method used

The control components, which employ a worm gear, worm wheel, rotating gear, and adjustment disc transmission structure, enable precise adjustment of the fan blade angle. Multiple fan blades are linked to adjust the ventilation cross-sectional area of ​​the ventilation duct cavity, and a sealing strip is installed to prevent air leakage.

Benefits of technology

It improves the accuracy of ventilation volume control, adapts to rapid changes in kiln conditions, reduces heat loss, and enhances product consistency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224415781U_ABST
    Figure CN224415781U_ABST
Patent Text Reader

Abstract

The application provides a kiln ventilation regulation device, comprising: a ventilation pipe; a protection shell is fixedly installed on the surface of the ventilation pipe, a connecting shell is fixedly installed on one side of the protection shell, a supporting plate is fixedly installed in the inner cavity of the ventilation pipe, a supporting rod is fixedly installed on the top of the supporting plate, and a supporting disc is fixedly installed on the top of the supporting rod. Through the design of the regulation assembly, the regulation assembly adopts a worm, a worm wheel, a rotating gear and an adjusting disc transmission structure, worm and worm wheel transmission improves stability, the rotating gear and the teeth can realize precise adjustment of the angle of the adjusting fan blade, the ventilation volume control error is reduced, the precision is improved compared with traditional manual adjustment, multiple adjusting fan blades are linked through adjusting rods and adjusting discs, the ventilation pipe inner cavity ventilation cross-sectional area can be changed synchronously, the airflow deflection problem of traditional single baffle adjustment is avoided, the kiln working condition rapid change demand is adapted, a sealing strip is arranged on the top of the adjusting fan blade, and heat loss caused by traditional baffle gap air leakage is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of kiln ventilation technology, and more specifically, to a kiln ventilation control device. Background Technology

[0002] In kiln production in industries such as ceramics, cement, and metallurgy, kiln ventilation control is crucial for combustion efficiency, material heating uniformity, and product quality. However, existing kiln ventilation control devices generally have the following defects.

[0003] Existing kiln ventilation control devices mostly use simple baffles or valves to adjust the size of the ventilation openings to control the ventilation volume. This method has limited adjustment precision and can generally only achieve a large change in ventilation volume, making it difficult to meet the needs of precise control. Moreover, in long-term use, baffles or valves are prone to wear and deformation, affecting the adjustment effect. It is difficult to flexibly adjust according to different production stages and material characteristics, resulting in uneven airflow distribution, which can easily cause local temperatures in the kiln to be too high or too low, affecting product consistency.

[0004] Therefore, we have made improvements to this by proposing a kiln ventilation control device. Utility Model Content

[0005] The purpose of this utility model is to address the fact that existing kiln ventilation control devices mostly use simple baffles or valves to adjust the size of the ventilation openings to control the ventilation volume. This method has limited adjustment precision and can generally only achieve a large change in ventilation volume, making it difficult to meet the needs of precise control. Moreover, in long-term use, the baffles or valves are prone to wear and deformation, affecting the adjustment effect. It is difficult to flexibly adjust according to different production stages and material characteristics, resulting in uneven airflow distribution, which can easily cause local temperatures in the kiln to be too high or too low, affecting product consistency.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A kiln ventilation control device to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] It includes: a ventilation duct; a protective shell is fixedly installed on the surface of the ventilation duct, a connecting shell is fixedly installed on one side of the protective shell, a support plate is fixedly installed in the inner cavity of the ventilation duct, a support rod is fixedly installed on the top of the support plate, a support plate is fixedly installed on the top of the support rod, and an adjustment component is movably connected to one side of the inner cavity of the connecting shell.

[0010] To achieve the above technical solution, the control component is designed with a worm gear, worm wheel, rotating gear, and adjusting disc transmission structure. The worm gear transmission improves stability, while the rotating gear and teeth enable precise adjustment of the fan blade angle, reducing ventilation volume control error and improving accuracy compared to traditional manual adjustment. Multiple adjusting fan blades are linked to the adjusting rod and adjusting disc, which can synchronously change the ventilation cross-sectional area of ​​the ventilation duct cavity, avoiding the airflow deviation problem of traditional single-baffle adjustment and adapting to the rapidly changing working conditions inside the kiln. A sealing strip is installed at the top of the adjusting fan blade to avoid heat loss caused by air leakage from the gaps in traditional baffles.

[0011] In a preferred embodiment of the kiln ventilation control device provided by this utility model, the control component includes a rotating rod movably connected to one side of the inner cavity of the connecting shell. A rotating disk is fixedly installed on one side of the rotating rod. A worm gear is fixedly installed on the surface of the rotating rod. A worm wheel meshes with one side of the worm gear. A transmission rod is fixedly installed in the inner cavity of the worm wheel. A rotating gear is fixedly installed on the surface of the transmission rod. An adjusting disk is provided on one side of the rotating gear. The surface of the adjusting disk is provided with teeth that mesh with the rotating gear. Multiple adjusting rods are fixedly installed on the surface of the adjusting disk. A fixed frame is movably connected to the surface of the adjusting rod. A movable rod is movably connected to the bottom of the inner cavity of the fixed frame. An adjusting fan blade is fixedly installed on the surface of the movable rod. The side of the movable rod near the support disk is movably connected to the support disk.

[0012] In a preferred embodiment of the kiln ventilation control device provided by this utility model, a sealing strip is installed on one side of the top of the regulating fan blade.

[0013] In a preferred embodiment of the kiln ventilation control device provided by this utility model, a support block is movably connected to one side of the rotating rod, and the side of the support block near the protective shell is fixedly connected to the protective shell.

[0014] In a preferred embodiment of the kiln ventilation control device provided by this utility model, the top and bottom of the transmission rod are movably connected to bearing seats, and the side of the bearing seat near the connecting shell is fixedly connected to the connecting shell.

[0015] In a preferred embodiment of the kiln ventilation control device provided by this utility model, a limiting ring is fixedly installed in the inner cavity of the regulating plate, and a limiting shell is installed on the surface of the limiting ring. The side of the limiting shell near the ventilation pipe is fixedly connected to the ventilation pipe.

[0016] In a preferred embodiment of the kiln ventilation control device provided by this utility model, a connecting ring is fixedly installed at both the top and bottom of the ventilation pipe, and a connecting hole is provided at the top of the connecting ring.

[0017] In a preferred embodiment of the kiln ventilation control device provided by this utility model, two fixing rings are fixedly installed on the surface of the ventilation pipe, and a fixing bolt is installed on one side of the fixing ring.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model provides a kiln ventilation control device. Through the design of the control component, the control component adopts a worm gear, worm wheel, rotating gear and adjustment disc transmission structure. The worm gear and worm wheel transmission improves stability, and the rotating gear and teeth can achieve precise adjustment of the fan blade angle, reducing the ventilation volume control error and improving the accuracy compared with traditional manual adjustment. Multiple adjustable fan blades are linked with the adjustment rod and adjustment disc, which can synchronously change the ventilation cross-sectional area of ​​the ventilation pipe cavity, avoiding the airflow deviation problem of traditional single baffle adjustment, and adapting to the needs of rapid changes in kiln working conditions. A sealing strip is set on the top of the adjustable fan blade to avoid heat loss caused by air leakage from the gap of traditional baffle. Attached Figure Description

[0020] Figure 1 A schematic diagram of the kiln ventilation control device provided in this application;

[0021] Figure 2 This is a schematic front sectional view of the kiln ventilation control device provided in this application.

[0022] Figure 3 A bottom sectional view of the structure of the kiln ventilation control device provided in this application;

[0023] Figure 4 A schematic front view of the structure of the kiln ventilation control device provided in this application;

[0024] Figure 5 A schematic front view of the control components of the kiln ventilation control device provided in this application;

[0025] Figure 6 A bottom view of the control components of the kiln ventilation control device provided in this application.

[0026] The image shows:

[0027] 1. Ventilation duct; 2. Protective shell; 3. Connecting shell; 4. Support plate; 5. Support rod; 6. Support plate; 7. Control assembly; 701. Rotating rod; 702. Rotating plate; 703. Worm gear; 704. Worm wheel; 705. Transmission rod; 706. Rotating gear; 707. Adjusting plate; 708. Gear teeth; 709. Adjusting rod; 710. Fixing frame; 711. Movable rod; 712. Adjusting fan blade; 713. Sealing strip; 714. Support block; 715. Bearing seat; 716. Limiting ring; 717. Limiting shell; 8. Connecting ring; 9. Connecting hole; 10. Fixing ring; 11. Fixing bolt. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] Please refer to Figure 1-6 A kiln ventilation control device includes: a ventilation pipe 1; a protective shell 2 is fixedly installed on the surface of the ventilation pipe 1, a connecting shell 3 is fixedly installed on one side of the protective shell 2, a support plate 4 is fixedly installed in the inner cavity of the ventilation pipe 1, a support rod 5 is fixedly installed on the top of the support plate 4, a support plate 6 is fixedly installed on the top of the support rod 5, and a control component 7 is movably connected to one side of the inner cavity of the connecting shell 3.

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The control component 7 includes a rotating rod 701, which is movably connected to one side of the inner cavity of the connecting shell 3. A rotating disk 702 is fixedly installed on one side of the rotating rod 701. A worm gear 703 is fixedly installed on the surface of the rotating rod 701. A worm wheel 704 meshes with one side of the worm gear 703. A transmission rod 705 is fixedly installed in the inner cavity of the worm wheel 704. A rotating gear 706 is fixedly installed on the surface of the transmission rod 705. An adjusting disk 707 is provided on one side of the rotating gear 706. Teeth 708 are provided on the surface of the adjusting disk 707. The teeth 708 and the rotating gear 706 are meshed. Multiple adjusting rods 709 are fixedly installed on the surface of the adjusting disk 707. A fixed frame 710 is movably connected to the surface of the adjusting rods 709. A movable rod 711 is movably connected to the bottom of the inner cavity of the fixed frame 710. An adjusting fan blade 712 is fixedly installed on the surface of the movable rod 711. The side of the movable rod 711 near the support disk 6 is movably connected to the support disk 6. A sealing strip 713 is installed on one side of the top of the adjusting fan blade 712. A support block 714 is movably connected to one side of the rotating rod 701, and the support block 714 is fixedly connected to the protective shell 2 on the side near the protective shell 2. Bearing seats 715 are movably connected to both the top and bottom of the transmission rod 705, and the bearing seats 715 are fixedly connected to the connecting shell 3 on the side near the connecting shell 3. A limiting ring 716 is fixedly installed in the inner cavity of the adjusting disc 707, and a limiting shell 717 is installed on the surface of the limiting ring 716, and the limiting shell 717 is fixedly connected to the ventilation pipe 1 on the side near the ventilation pipe 1. A connecting ring 8 is fixedly installed at both the top and bottom of the ventilation pipe 1, and a connecting hole 9 is opened at the top of the connecting ring 8. Two fixing rings 10 are fixedly installed on the surface of the ventilation pipe 1, and a fixing bolt 11 is installed on one side of the fixing ring 10.When the ventilation volume inside the ventilation duct 1 needs to be adjusted, the rotating disk 702 is rotated. The rotation of the rotating disk 702 drives the rotating rod 701 to rotate, which in turn drives the worm gear 703 to rotate. The worm gear 703 meshes with the worm wheel 704, causing it to rotate. The worm wheel 704, in turn, drives the rotating gear 706 via the transmission rod 705. The rotating gear 706, in turn, drives the adjusting disk 707 via the teeth 708. The rotating adjusting disk 707, in turn, drives multiple adjusting rods 709 to rotate. The rotation of the adjusting rods 709 causes the top of the fixed frame 710 to tilt. The tilting of the top of the fixed frame 710 causes the movable rod 711 at the bottom of the inner cavity to rotate. The rotation of the movable rod 711 then drives the adjusting fan blades 712 to rotate. The ventilation volume inside the ventilation pipe 1 is adjusted by adjusting the tilt of the adjusting fan blade 712. The control component 7 adopts a transmission structure of worm 703, worm wheel 704, rotating gear 706 and adjusting disk 707. The transmission of worm 703 and worm wheel 704 improves stability. The rotating gear 706 and teeth 708 can achieve precise adjustment of the angle of the adjusting fan blade 712, reducing the ventilation volume control error and improving the accuracy compared with traditional manual adjustment. Multiple adjusting fan blades 712 are linked with the adjusting disk 707 through the adjusting rod 709, which can synchronously change the ventilation cross-sectional area of ​​the ventilation pipe 1, avoiding the airflow deviation problem of traditional single baffle adjustment, and adapting to the needs of rapid changes in the working conditions inside the kiln. A sealing strip 713 is set on the top of the adjusting fan blade 712 to avoid heat loss caused by air leakage from the gap of traditional baffle.

[0038] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A kiln ventilation control device, characterized in that, include: Ventilation duct (1); A protective shell (2) is fixedly installed on the surface of the ventilation pipe (1). A connecting shell (3) is fixedly installed on one side of the protective shell (2). A support plate (4) is fixedly installed in the inner cavity of the ventilation pipe (1). A support rod (5) is fixedly installed on the top of the support plate (4). A support plate (6) is fixedly installed on the top of the support rod (5). An adjustment component (7) is movably connected to one side of the inner cavity of the connecting shell (3).

2. The kiln ventilation control device according to claim 1, characterized in that, The control assembly (7) includes a rotating rod (701), which is movably connected to one side of the inner cavity of the connecting shell (3). A rotating disk (702) is fixedly installed on one side of the rotating rod (701). A worm gear (703) is fixedly installed on the surface of the rotating rod (701). A worm wheel (704) meshes with one side of the worm gear (703). A transmission rod (705) is fixedly installed in the inner cavity of the worm wheel (704). A rotating gear (706) is fixedly installed on the surface of the transmission rod (705). An adjustment disk is provided on one side of the rotating gear (706). 707), the surface of the adjusting disk (707) is provided with teeth (708), the teeth (708) and the rotating gear (706) are meshed, a plurality of adjusting rods (709) are fixedly installed on the surface of the adjusting disk (707), a fixed frame (710) is movably connected to the surface of the adjusting rod (709), a movable rod (711) is movably connected to the bottom of the inner cavity of the fixed frame (710), an adjusting fan blade (712) is fixedly installed on the surface of the movable rod (711), and the movable rod (711) is movably connected to the support disk (6) on the side near the support disk (6).

3. The kiln ventilation control device according to claim 2, characterized in that, A sealing strip (713) is installed on one side of the top of the adjustable fan blade (712).

4. The kiln ventilation control device according to claim 2, characterized in that, A support block (714) is movably connected to one side of the rotating rod (701), and the support block (714) is fixedly connected to the protective shell (2) on the side near the protective shell (2).

5. The kiln ventilation control device according to claim 2, characterized in that, The top and bottom of the transmission rod (705) are movably connected to bearing seats (715), and the bearing seats (715) are fixedly connected to the connecting shell (3) on the side near the connecting shell (3).

6. The kiln ventilation control device according to claim 2, characterized in that, A limiting ring (716) is fixedly installed in the inner cavity of the adjusting plate (707). A limiting shell (717) is installed on the surface of the limiting ring (716). The limiting shell (717) is fixedly connected to the ventilation pipe (1) on the side near the ventilation pipe (1).

7. The kiln ventilation control device according to claim 1, characterized in that, The top and bottom of the ventilation pipe (1) are fixedly installed with connecting rings (8), and the top of the connecting rings (8) is provided with connecting holes (9).

8. The kiln ventilation control device according to claim 1, characterized in that, Two fixing rings (10) are fixedly installed on the surface of the ventilation pipe (1), and a fixing bolt (11) is installed on one side of the fixing ring (10).