Stepped furnace capable of preventing material accumulation and skinning

By designing a stirring structure and a collision mechanism in the stepped furnace, the problem of uneven heating of cement raw materials was solved, the quality of finished cement products was improved, the crusting phenomenon was prevented, and the full chemical reaction was ensured.

CN223710249UActive Publication Date: 2025-12-23FUJIAN SANMING HAIZHONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520004531.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-12-23
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

In existing technologies, cement raw materials may clump together when passing through a stepped furnace, resulting in uneven heating of the cement raw materials and affecting the quality of the finished cement. In existing technologies, cement raw materials cannot be heated evenly during segmented heating, and the required chemical reactions cannot be generated inside the clumps, affecting the quality of the finished cement. Existing stepped furnaces designed to prevent material accumulation and crusting cannot effectively prevent crusting.

Method used

Design a stepped furnace to prevent material accumulation and crusting, including a stirring structure and a collision mechanism. The stirring structure and collision mechanism disperse the cement raw material powder and prevent material accumulation and crusting. The stepped furnace disperses the falling raw material powder through the stirring structure and collision mechanism, and the raw material on the collision mechanism is vibrated and scattered, thus preventing material accumulation and crusting.

Benefits of technology

The design ensures uniform heating of raw materials, guaranteeing the quality of finished cement products. The mixing structure and collision mechanism prevent the formation of a skin on the raw materials during heating, ensuring that the chemical reaction of the cement proceeds fully.

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Abstract

The utility model provides a material accumulation crust prevention stepped furnace, which comprises a stepped furnace body, a scattering motor, a rotating frame, a driving gear, a driven gear, a scattering roll shaft and a collision mechanism, the upper surface of the stepped furnace body is provided with a feed port, the lower surface of the stepped furnace body is provided with a discharge port, the inner side surface of the stepped furnace body is provided with the scattering motor, and the rotating frame is arranged on the inner side surface of the stepped furnace body. A driving gear is mounted on the inner side surface of the scattering motor, two rotating frames are mounted in the stepped furnace body, and the design solves the problems that cement raw materials of an original device possibly cake when passing through the stepped furnace, so that the cement raw materials cannot be uniformly heated during segmented heating, required chemical reactions cannot be generated in the cake, and the production efficiency is high. The utility model designs a stirring structure and a collision mechanism to scatter falling raw material powder so as to ensure that raw materials are uniformly heated, and the raw materials on the collision mechanism are vibrated and scattered through collision, so that the raw materials are further prevented from being accumulated and crust.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ladder furnace of preventing material accumulation skinning, belong to ladder furnace technical field. BACKGROUND

[0002] When producing cement, cement raw material needs to be heated to enough temperature after being ground and passing through multiple ladder furnaces, so as to remove carbon dioxide in cement raw material.

[0003] Publication No. CN220771862U mentions a ladder furnace that prevents material accumulation skinning. By setting a heat insulation layer, it can play a role in heat preservation and insulation, increasing the use effect of the furnace body. However, cement raw materials may form clumps when passing through the ladder furnace, resulting in uneven heating during staged heating. The interior of the clumps cannot produce the required chemical reaction, affecting the quality of finished cement. There is an urgent need for a ladder furnace that prevents material accumulation skinning to solve the above problems. UTILITY MODEL CONTENT

[0004] To address the deficiencies in the prior art, the utility model aims to provide a ladder furnace that prevents material accumulation skinning to solve the problems raised in the background art. The utility model designs a stirring structure and a collision mechanism to scatter the falling raw material powder, ensuring uniform heating of the raw materials. The raw materials on the collision mechanism are shaken and scattered, further preventing material accumulation skinning.

[0005] To achieve the above-mentioned purpose, the utility model is implemented by the following technical solution: a ladder furnace that prevents material accumulation skinning, comprising a ladder furnace body, a scattering motor, a rotating frame, a driving gear, a driven gear, a scattering roller shaft, and a collision mechanism. The upper surface of the ladder furnace body is provided with a feeding port, and the lower surface of the ladder furnace body is provided with a discharging port. The inner side surface of the ladder furnace body is provided with a scattering motor. The inner side surface of the scattering motor is installed with a driving gear. Two rotating frames are installed inside the ladder furnace body. The side surface of the rotating frame is installed with a driven gear. The inner side surface of the rotating frame is provided with two scattering roller shafts. The inner side surface of the rotating frame is provided with four collision mechanisms. The collision mechanism comprises a limiting rod, a fixed outer plate, a connecting inner plate, a collision spring, a reset motor, a reset screw, a reset rod, and a connecting cylinder. Two rotating frames are installed at the upper and lower ends of the same side, respectively. The rotating frames at the upper and lower ends are connected by a connecting inner plate. A limiting rod is arranged between the connecting inner plate and the two fixed outer plates on the same side. The limiting rod is connected to the two fixed outer plates on the same end through a collision spring, respectively. A reset motor is installed at the upper and lower ends inside the rotating frame. A reset screw is arranged at the upper and lower ends inside the rotating frame. A reset rod is installed on the circumference of each reset screw. A connecting cylinder is installed on both sides inside each scattering roller shaft.

[0006] Furthermore, a drive chamber is provided in the inner wall of one side of the stepped furnace body. The disintegrating motor is installed inside the drive chamber. The disintegrating motor is connected to the driving gear through a motor shaft. The two rotating frames are connected to the stepped furnace body through bearings. The driven gear is located inside the drive chamber and meshes with the driving gear.

[0007] Furthermore, each of the limiting rods passes through the corresponding dispersing roller shaft, and each of the collision springs passes through the circumferential surface of the corresponding dispersing roller shaft. Each of the collision springs and the limiting rods are parallel to each other.

[0008] Furthermore, each of the rotating frames has a reset groove at its upper and lower ends, the reset screw is located inside the reset groove, and the cross-sectional dimensions of the reset rod are the same as those of the reset rod. Each reset screw is connected to the corresponding rotating frame through a bearing, and each reset screw is connected to the corresponding reset rod through a thread. The reset motor is connected to the reset rod through a motor shaft.

[0009] Furthermore, each of the dispersing roller shafts has a cylinder groove on the side end face near the reset rod, and each of the reset rods has a connecting groove on the side end face near the dispersing roller shaft. The connecting groove and the cylinder groove have the same cross-sectional dimensions, each connecting cylinder is located in the corresponding cylinder groove, and the cross-section of each connecting groove and the cross-section of the corresponding cylinder groove are concentric circles.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a stepped furnace for preventing material accumulation and crusting. Because it incorporates a dispersing motor, rotating frame, driving gear, driven gear, dispersing roller, collision mechanism, limiting rod, fixed outer plate, connecting inner plate, collision spring, reset motor, reset screw, reset rod, and connecting cylinder, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. The design of a stirring structure and collision mechanism disperses the falling raw material powder, ensuring uniform heating of the raw materials. Furthermore, the collision mechanism vibrates and disperses the raw materials on it, further preventing material accumulation and crusting. Attached Figure Description

[0011] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a stepped furnace for preventing material accumulation and crusting according to this utility model;

[0013] Figure 2 This is a cross-sectional schematic diagram of a stepped furnace for preventing material accumulation and crusting according to the present invention.

[0014] Figure 3 This is a three-dimensional schematic diagram of a stepped furnace collision mechanism for preventing material accumulation and crusting according to the present invention.

[0015] Figure 4 This is a schematic diagram of the connection cylinder for a stepped furnace to prevent material accumulation and crusting, according to the present invention.

[0016] In the diagram: 1-Step furnace body, 2-Feed inlet, 3-Disintegrating motor, 4-Rotating frame, 5-Driving gear, 6-Driven gear, 7-Disintegrating roller shaft, 8-Collision mechanism, 81-Limiting rod, 82-Fixed outer plate, 83-Connecting inner plate, 84-Collision spring, 85-Reset motor, 86-Reset screw, 87-Reset rod, 88-Connecting cylinder, 881-Cylinder groove, 882-Connecting groove, 9-Discharge port. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a stepped furnace for preventing material accumulation and crusting, comprising a stepped furnace body 1, a dispersing motor 3, a rotating frame 4, a driving gear 5, a driven gear 6, a dispersing roller shaft 7, and a collision mechanism 8. The upper surface of the stepped furnace body 1 is provided with a feed inlet 2, and the lower surface of the stepped furnace body 1 is provided with a discharge outlet 9. The inner surface of the stepped furnace body 1 is provided with a dispersing motor 3, and the inner surface of the dispersing motor 3 is equipped with a driving gear 5. Two rotating frames 4 are installed inside the stepped furnace body 1, and the side surface of the rotating frames 4 is equipped with a driven gear 6. Two dispersing roller shafts 7 are provided on the inner surface of the rotating frames 4. Four collision mechanisms 8 are provided on the inner surface of the rotating frames 4. Each collision mechanism 8 includes a limiting rod 81, a fixed outer plate 82, a connecting inner plate 83, a collision spring 84, a reset motor 85, a reset screw 86, and a reset rod 87. 7 and connecting cylinder 88, the upper and lower ends of the two rotating frames 4 are respectively equipped with fixed outer plates 82, the upper and lower rotating frames 4 are connected by connecting inner plates 83, the connecting inner plates 83 are provided with limit rods 81 between the two fixed outer plates 82 on the same side, the limit rods are respectively connected to the two fixed outer plates 82 on the same end by collision springs 84, the upper and lower ends of the rotating frame 4 are respectively equipped with reset motors 85, the upper and lower ends of the rotating frame 4 are respectively equipped with reset screws 86, the circumference of each reset screw 86 is equipped with a reset rod 87, and the two sides of each dispersing roller shaft 7 are respectively equipped with connecting cylinders 88. This design solves the problem that cement raw materials may clump when passing through the stepped furnace in the original device, which leads to uneven heating during segmented heating, and the clumps cannot produce the required chemical reaction, affecting the quality of the finished cement.

[0019] As the first embodiment of this utility model: a drive chamber is provided in the inner wall of one side of the stepped furnace body 1. The dispersing motor 3 is installed inside the drive chamber. The dispersing motor 3 is connected to the driving gear 5 through a motor shaft. Two rotating frames 4 are connected to the stepped furnace body 1 through bearings. The driven gear 6 is set inside the drive chamber and meshes with the driving gear 5. Each limiting rod 81 passes through the corresponding dispersing roller shaft 7, and each collision spring 84 passes through the circumferential surface of the corresponding dispersing roller shaft 7. Each collision spring 84 is parallel to the limiting rod 81. By adding the limiting rod 81, the displacement of the two dispersing roller shafts 7 can be prevented. The upper and lower ends of each rotating frame 4 are respectively provided with reset grooves, and reset screws 8... 6 is located inside the reset groove, and the cross-sectional dimensions of the reset rod 87 are the same as those of the reset rod 87. Each reset screw 86 is connected to the corresponding rotating frame 4 through a bearing, and each reset screw 86 is connected to the corresponding reset rod 87 through a thread. The reset motor 85 is connected to the reset rod 87 through a motor shaft. Each dispersing roller shaft 7 has a cylinder groove 881 on the side end face close to the reset rod 87. Each reset rod 87 has a connecting groove 882 on the side end face close to the dispersing roller shaft 7, and the cross-sectional dimensions of the connecting groove 882 are the same as those of the cylinder groove 881. Each connecting cylinder 88 is located in the corresponding cylinder groove 881, and the cross-section of each connecting groove 882 is concentric with the cross-section of the corresponding cylinder groove 881.

[0020] As a second embodiment of this utility model: When heating cement raw materials, the connecting cylinder 88 is normally in an extended state. The raw materials enter the furnace body 1 of the stepped furnace through the feed inlet 2. Simultaneously, the dispersing motor 3 is activated. The dispersing motor 3 drives the driven gear 6 to rotate via the driving gear 5. The driven gear 6 then drives the rotating frame 4 to rotate, causing the dispersing roller 7 to move in a circular motion inside the stepped furnace body 1, thus dispersing the falling raw materials. The dispersed raw materials will fully contact the rising high-temperature gas, ensuring that the required chemical reaction occurs. When a significant amount of residue appears on the circumferential surface of the dispersing roller 7, the connecting cylinder 88 is shortened. When the collision spring 84 is compressed, it pushes the two dispersing rollers 7 to move towards the center along the limit rod 81 until the two dispersing rollers 7 collide. The vibration generated by the collision will disperse the raw materials on the surface of the dispersing rollers 7. Then, the reset motor 85 is turned on and controlled to drive the reset screw 86 to rotate. Since the reset rod 87 cannot rotate, the reset screw 86 will drive the reset rod 87 to move when it rotates. When the position of the reset rod 87 is the same as that of the dispersing rollers 7, the connecting cylinder 88 is extended so that the reset rod 87 and the dispersing rollers 7 are connected together through the connecting cylinder 88. Then, the reset rod 87 is controlled to drive the dispersing rollers 7 back to their original position, so that the raw materials can continue to be dispersed.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stepped furnace for preventing material accumulation and crusting, comprising a stepped furnace body, a dispersing motor, a rotating frame, a driving gear, a driven gear, a dispersing roller shaft, and a collision mechanism, characterized in that: The upper surface of the stepped furnace body is provided with a feed inlet, the lower surface of the stepped furnace body is provided with a discharge outlet, the inner surface of the stepped furnace body is provided with a dispersing motor, the inner surface of the dispersing motor is equipped with a drive gear, the inside of the stepped furnace body is provided with two rotating frames, the side surface of the rotating frames is equipped with a driven gear, the inner surface of the rotating frames is provided with two dispersing rollers, and the inner surface of the rotating frames is provided with four collision mechanisms. The collision mechanism includes a limiting rod, a fixed outer plate, a connecting inner plate, a collision spring, a reset motor, a reset screw, a reset rod, and a connecting cylinder. Fixed outer plates are installed at the upper and lower ends of the two rotating frames, which are connected by the connecting inner plate. A limiting rod is provided between the connecting inner plate and the two fixed outer plates on the same side. The limiting rod is connected to the two fixed outer plates on the same end by collision springs. A reset motor is installed at the upper and lower ends inside the rotating frame, and a reset screw is provided at the upper and lower ends inside the rotating frame. A reset rod is installed on the circumference of each reset screw. A connecting cylinder is installed on both sides inside each dispersing roller shaft.

2. A stepped furnace for preventing material accumulation and crusting according to claim 1, characterized in that: A drive chamber is provided in the inner wall of one side of the stepped furnace body. The disintegrating motor is installed inside the drive chamber. The disintegrating motor is connected to the driving gear through a motor shaft. The two rotating frames are connected to the stepped furnace body through bearings. The driven gear is located inside the drive chamber and meshes with the driving gear.

3. A stepped furnace for preventing material accumulation and crusting according to claim 1, characterized in that: Each of the limiting rods passes through the corresponding dispersing roller shaft, and each of the collision springs passes through the circumferential surface of the corresponding dispersing roller shaft. Each of the collision springs is parallel to the limiting rod.

4. A stepped furnace for preventing material accumulation and crusting according to claim 1, characterized in that: Each of the rotating frames has a reset slot at both the top and bottom. The reset screw is located inside the reset slot, and the cross-sectional dimensions of the reset rod are the same as those of the reset rod. Each reset screw is connected to the corresponding rotating frame via a bearing, and each reset screw is connected to the corresponding reset rod via a thread. The reset motor is connected to the reset rod via a motor shaft.

5. A stepped furnace for preventing material accumulation and crusting according to claim 1, characterized in that: Each of the dispersing roller shafts has a cylinder groove on the side end face near the reset rod, and each of the reset rods has a connecting groove on the side end face near the dispersing roller shaft. The connecting groove and the cylinder groove have the same cross-sectional dimensions. Each connecting cylinder is located in the corresponding cylinder groove, and the cross-section of each connecting groove and the cross-section of the corresponding cylinder groove are concentric circles.

Citation Information

Patent Citations

  • Stepped furnace capable of preventing material accumulation and skinning

    CN220771862U