A feed device for a decomposition furnace

By using a rotating dispersion disc and feeding plate, crushing blades, and variable frequency motor control in the decomposition furnace feeding device, the problem of concentrated material feeding was solved, achieving uniform material dispersion and efficient heat exchange, thus improving the quality and efficiency of cement production.

CN224381530UActive Publication Date: 2026-06-19LIAONING FUSHAN CEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING FUSHAN CEMENT CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing decomposition furnace feeding devices are unable to achieve sufficient material dispersion, resulting in material concentration during feeding. This affects the contact and mixing of material with the high-temperature airflow, reduces heat exchange efficiency, increases system energy consumption, and restricts cement production quality and efficiency.

Method used

The material is dispersed by centrifugal force using a rotating dispersing disc and multiple feeding plates, and large pieces of material are crushed by crushing blades. At the same time, the feed rate is adjusted by a frequency converter-controlled motor to ensure that the material enters the decomposition furnace evenly.

Benefits of technology

It improves the dispersion of materials and the efficiency of heat exchange in the decomposition furnace, thereby enhancing the quality and efficiency of cement production and reducing system energy consumption.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224381530U_ABST
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Abstract

The utility model discloses a kind of feeders of decomposition furnace, it is related to cement production equipment technical field, including: decomposition furnace body;First feed pipe, the first feed pipe is connected and is set at the top of decomposition furnace body;First motor, the first motor is set at the top of first feed pipe, the output shaft of the first motor is penetrated to the top wall of first feed pipe and is connected with rotating shaft, the bottom of the rotating shaft is connected with dispersion disc, the diameter of the dispersion disc is greater than the diameter of first feed pipe, the top of the dispersion disc is uniformly distributed with multiple poking plate;Second feed pipe;The utility model is scattered by rotating dispersion disc and multiple poking plate under the action of centrifugal force, to prevent material more concentrated in the process of discharging, to improve the overall decomposition effect.
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Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, specifically to a feeding device for a decomposition furnace. Background Technology

[0002] In the field of hazardous waste treatment, the decomposition furnace is one of the core pieces of equipment. It uses a high-temperature environment to carry out reactions such as pyrolysis and gasification of hazardous waste, effectively decomposing the toxic and harmful substances in it, and achieving volume reduction and harmless treatment. At the same time, the decomposition furnace can efficiently recover the heat energy in hazardous waste, improve resource utilization, and occupy a key position in the hazardous waste treatment process.

[0003] As an important component of the decomposition furnace system, the feeding device plays a crucial role in feeding materials into the decomposition furnace evenly and efficiently. Its performance directly affects the degree of material dispersion, the contact area with the hot air flow, and the reaction efficiency within the decomposition furnace, thereby influencing the quality and output of the entire cement production process.

[0004] However, existing decomposition furnace feeding devices are unable to achieve sufficient material dispersion, resulting in relatively concentrated material during feeding. This prevents the material from fully contacting and mixing with the rising high-temperature airflow, which not only reduces the heat exchange efficiency of the material and affects the decomposition effect, but also increases system energy consumption, reduces production efficiency, and restricts the high-quality development of the cement production industry. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a feeding device for a decomposition furnace. By using a rotating dispersing disc and multiple material-pulling plates under centrifugal force, the material falling from the first feed pipe is dispersed, thereby preventing the material from concentrating during the feeding process and improving the overall decomposition effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a decomposition furnace, comprising:

[0007] The decomposition furnace body;

[0008] The first feed pipe is connected to the top of the decomposition furnace body;

[0009] The first motor is located at the top of the first feed pipe. The output shaft of the first motor passes through the top wall of the first feed pipe and is connected to a rotating shaft. The bottom of the rotating shaft is connected to a dispersing disc. The diameter of the dispersing disc is larger than the diameter of the first feed pipe. Multiple material feeding plates are evenly distributed on the top of the dispersing disc.

[0010] The second feed pipe is horizontally arranged and connected to the first feed pipe. A second motor is arranged on the outer wall of the second feed pipe. A conveying screw is rotatably arranged inside the second feed pipe. One end of the conveying screw is connected to the output shaft of the second motor.

[0011] The hopper is connected to the top of the second feed pipe.

[0012] Preferably, a plurality of crushing blades are provided on the portion of the rotating shaft located inside the first feed pipe.

[0013] Preferably, the two ends of the rotating shaft are connected to the output shaft of the first motor and the dispersion disk through a pair of couplings.

[0014] Preferably, the second motor is frequency-controlled.

[0015] This utility model provides a feeding device for a decomposition furnace, which has the following beneficial effects:

[0016] 1. This utility model uses a rotating dispersing disc and multiple material-dispersing plates to disperse the material falling from the first feed pipe under the action of centrifugal force, thereby preventing the material from concentrating during the feeding process and improving the overall decomposition effect.

[0017] 2. The multiple rotating crushing blades of this utility model can crush the material falling in the first feed pipe, thereby preventing large pieces of material from reducing the decomposition effect; the frequency-controlled second motor can control the amount of material entering the first feed pipe, so as to adjust it according to the feeding requirements. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This utility model Figure 2 A cross-sectional view along the AA direction;

[0021] Figure 4 This is a three-dimensional structural diagram of the dispersion disc and multiple feeding plates of this utility model.

[0022] In the diagram: 1. Decomposition furnace body; 2. First feed pipe; 3. First motor; 4. Second feed pipe; 5. Second motor; 6. Hopper; 7. Conveying screw; 8. Rotary shaft; 9. Crushing blade; 10. Dispersing disc; 11. Feeding plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a feeding device for a decomposition furnace, characterized in that it includes:

[0025] Decomposition furnace body 1;

[0026] The first feed pipe 2 is connected to the top of the decomposition furnace body 1;

[0027] Specifically, the first feed pipe 2 can be installed on the top of the decomposition furnace body 1 by bolts or welding, and the bottom of the first feed pipe 2 is open;

[0028] The first motor 3 is located at the top of the first feed pipe 2. The output shaft of the first motor 3 passes through the top wall of the first feed pipe 2 and is connected to a rotating shaft 8. The bottom of the rotating shaft 8 is connected to a dispersing disc 10. The diameter of the dispersing disc 10 is larger than the diameter of the first feed pipe 2. Multiple material feeding plates 11 are evenly distributed on the top of the dispersing disc 10.

[0029] Specifically, when the output shaft of the first motor 3 rotates, it can drive the rotating shaft 8 to rotate. The rotating shaft 8 drives the dispersing disc 10 to rotate, and the dispersing disc 10 drives multiple material-pushing plates 11 to rotate. Under the action of centrifugal force, the rotating dispersing disc 10 and the material-pushing plates 11 will disperse the material falling from the first feed pipe 2 and drop it from the outside of the dispersing disc 10 into the decomposition furnace body 1 to prevent material accumulation.

[0030] The second feed pipe 4 is horizontally arranged and connected to the first feed pipe 2. The second motor 5 is arranged on the outer wall of the second feed pipe 4. The feeding screw 7 is rotatably arranged inside the second feed pipe 4. One end of the feeding screw 7 is connected to the output shaft of the second motor 5.

[0031] Specifically, a reinforcing rib is provided between the second feed pipe 4 and the first feed pipe 2 to enhance the overall stability. When the second motor 5 drives the conveying screw 7 to rotate, it can transport the material entering the second feed pipe 4 to the first feed pipe 1.

[0032] The material bin 6 is connected to the top of the second feed pipe 4;

[0033] Specifically, the hopper 6 is located at the top of the second feed pipe 4 on the side away from the first feed pipe 2.

[0034] As an embodiment of the present utility model, a plurality of crushing blades 9 are provided on the part of the rotating shaft 8 located inside the first feed pipe 2;

[0035] Specifically, the rotating multiple crushing blades 9 can crush the material in the first feed pipe 2.

[0036] As an embodiment of this utility model, the two ends of the rotating shaft 8 are connected to the output shaft of the first motor 3 and the dispersing disk 10 through a pair of couplings.

[0037] As one embodiment of this utility model, the second motor 5 is frequency converter controlled;

[0038] Specifically, the speed of feeding material into the first feed pipe 2 is controlled by adjusting the speed of the second motor 5 through frequency conversion control.

[0039] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0040] The working principle and usage process of this utility model are as follows: When in use, the material is first conveyed into the silo 6, and the material in the silo 6 falls into the second feed pipe 4 under its own weight.

[0041] Start the first motor 3, which drives the rotating shaft 8 to rotate at high speed. The rotating shaft 8 drives multiple crushing blades 9 and the dispersing disc 10 to rotate. The dispersing disc 10 drives multiple material feeding plates 11 to rotate.

[0042] The second motor 5 is started, and the output shaft of the second motor 5 drives the connected conveying screw 7 to rotate. The conveying screw 7 transports the material in the second feed pipe 4 to the first feed pipe 2. As the material falls down the first feed pipe 2, multiple rotating crushing blades 9 can crush the material. When the material falls onto the dispersing disc 10, the rotating dispersing disc 10 and multiple material-pulling plates 11 disperse the material in all directions under the action of centrifugal force. The dispersed material then falls into the decomposition furnace body 1.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A decomposing furnace feed device characterized by, include: Decomposition furnace body (1); The first feed pipe (2) is connected to the top of the decomposition furnace body (1); The first motor (3) is located at the top of the first feed pipe (2). The output shaft of the first motor (3) passes through the top wall of the first feed pipe (2) and is connected to a rotating shaft (8). The bottom of the rotating shaft (8) is connected to a dispersing disc (10). The diameter of the dispersing disc (10) is larger than the diameter of the first feed pipe (2). Multiple material feeding plates (11) are evenly distributed on the top of the dispersing disc (10). The second feed pipe (4) is horizontally arranged and connected to the first feed pipe (2). A second motor (5) is arranged on the outer wall of the second feed pipe (4). A conveying screw (7) is rotatably arranged inside the second feed pipe (4). One end of the conveying screw (7) is connected to the output shaft of the second motor (5). The hopper (6) is connected to the top of the second feed pipe (4).

2. A furnace feed apparatus according to claim 1, wherein Multiple crushing blades (9) are provided on the shaft (8) and in the part located inside the first feed pipe (2).

3. A furnace feed apparatus according to claim 1, wherein The two ends of the rotating shaft (8) are connected to the output shaft of the first motor (3) and the dispersing disk (10) through a pair of couplings.

4. A furnace feed apparatus according to claim 1, wherein The second motor (5) is frequency converter controlled.