Device for increasing temperature of sintering mixture
By installing hot steam and hot air exchange devices on the sintering machine trolley, the problem of difficult to increase the mixture temperature in winter is solved, and the mixture temperature is increased, solid fuel consumption is reduced and output is increased.
Patent Information
- Application Number
- CN202421611522.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-09
AI Technical Summary
When the temperature is low in winter, it is difficult to keep the sintered mixture after adding water, resulting in difficulty in increasing the temperature of the mixture, affecting the sintering utilization coefficient and ore quality.
A device is designed to be installed on a sintering machine trolley, and the mixture is fully heat exchanged with the mixture through hot steam and hot air to increase the mixture temperature. The device includes a steam heating tube and a hot air heating tube, a steam heating tube inserted into the upper layer of the mixture, and a hot air heating tube inserted into the lower layer of the mixture.
Through heat exchange technology, the mixture temperature is effectively increased, solid fuel consumption is reduced, and the output is improved, which solves the problem of difficulty in increasing the mixture temperature.
Smart Images
Figure CN223020857U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for increasing the temperature of sintering mixed materials, belonging to the technical field of sintering machine equipment in the metallurgical industry. Background Art
[0002] The metallurgical industry is divided into long-process and short-process processes. In the long-process process, the sintering process is to mix the powdered materials, ignite and sinter them into lump ore clinker for use in blast furnaces. Quicklime is used as a flux in the sintering mixing process. Quicklime releases heat when it meets water, and the temperature of the mixture rises. The temperature of the mixture is directly related to the sintering utilization coefficient and the quality of the sintered ore. The temperature of the mixture is an important parameter for controlling the sintering process, and it is crucial to increase the temperature of the mixture.
[0003] Due to the low temperature in winter, there are the following difficulties in keeping the mixed material warm after adding water:
[0004] (1) Most factory buildings are built with colored steel, and the length of transportation by belt conveyor is long, and the cost of adding insulation cover to belt conveyor is high;
[0005] (2) The conveyor belt has a high transport speed. If a heating device is added, the mixture cannot be heated quickly.
[0006] Therefore, how to increase the temperature of the sintering mixture has become an urgent problem to be solved by relevant technical personnel. Utility Model Content
[0007] The utility model aims to provide a device for increasing the temperature of sintering mixed materials. The device is installed on a sintering machine trolley and fully completes heat exchange with the mixed materials through hot steam and hot air, thereby increasing the temperature of the mixed materials and solving the problems existing in the background technology.
[0008] The technical solution of the utility model is:
[0009] A device for increasing the material temperature of a sintering mixture comprises a fixed channel steel, a steam heating pipe, a hot air heating pipe, a connecting plate, a steam access pipe and a hot air connecting pipe. One end of the connecting plate is fixed on a sintering machine trolley, and the other end of the connecting plate is connected to the fixed channel steel. The fixed channel steel is provided with a steam access pipe and a hot air connecting pipe which are arranged in parallel up and down. A row of steam heating pipes is connected to the steam access pipe, and a row of hot air heating pipes is connected to the hot air connecting pipe. The row of steam heating pipes connected to the steam access pipe and the row of hot air heating pipes connected to the hot air connecting pipe are respectively inserted into the mixture on the sintering machine trolley.
[0010] A row of steam heating pipes connected to the steam inlet pipe and a row of hot air heating pipes connected to the hot air connecting pipe are arranged in parallel up and down.
[0011] The number of steam heating pipes connected to the steam access pipe is the same as that of the hot air heating pipes connected to the hot air connection pipe.
[0012] A row of steam heating pipes connected to the steam access pipe is inserted into the upper layer of the mixture on the sintering machine trolley, and a row of hot air heating pipes connected to the hot air connection pipe is inserted into the lower layer of the mixture on the sintering machine trolley.
[0013] The steam access pipe and the hot air connection pipe are respectively fixed on the fixed channel steel.
[0014] The beneficial effect of the utility model is that the device is installed on the sintering machine trolley. Under the normal production condition of the sintering machine, through the full heat exchange between the hot steam and the hot air and the mixture, the temperature of the mixture is increased, so as to achieve the purpose of reducing the solid fuel consumption and increasing the output. Description of the Drawings
[0015] Figure 1 is the front view of the utility model;
[0016] Figure 2 is the side view of the utility model;
[0017] Figure 3 is the top view of the utility model;
[0018] In the figure: fixed channel steel 1, steam heating pipe 2, hot air heating pipe 3, connecting plate 4, steam access pipe 5, hot air connection pipe 6. Detailed Embodiment
[0019] The following further illustrates the utility model through examples in conjunction with the drawings.
[0020] Refer to the appendix Figures 1-3 , a device for increasing the temperature of the sintering mixture, comprising a fixed channel steel 1, a steam heating pipe 2, a hot air heating pipe 3, a connecting plate 4, a steam access pipe 5 and a hot air connection pipe 6. One end of the connecting plate 4 is fixed on the sintering machine trolley, and the other end of the connecting plate 4 is connected to the fixed channel steel 1. The fixed channel steel 1 is provided with a steam access pipe 5 and a hot air connection pipe 6 arranged in parallel up and down. A row of steam heating pipes 2 is connected to the steam access pipe 5, and a row of hot air heating pipes 3 is connected to the hot air connection pipe 6. A row of steam heating pipes 2 connected to the steam access pipe 5 and a row of hot air heating pipes 3 connected to the hot air connection pipe 6 are respectively inserted into the mixture on the sintering machine trolley.
[0021] In this embodiment, refer to the appendix Figures 1-3 , the specific manufacturing process is as follows:
[0022] (1) Material preparation
[0023] Use a φ25mm or φ50mm round tube as the steam heating pipe 2 and the hot air heating pipe 3, a 5-16 type channel steel as the fixed channel steel 1, a 5mm thick steel plate as the connecting plate 4, and four DN50 valves.
[0024] (2) Manufacturing method
[0025] Weld the connecting plate 4 between the sintering machine trolley and the feeder to ensure the stability of the temperature raising device and have a certain strength.
[0026] Weld the steam inlet pipe 5 and the hot air connection pipe 6 to the fixed channel steel 1 respectively and install valves.
[0027] Connect a row of steam heating pipes 2 to the steam inlet pipe 5 and insert the steam heating pipes 2 into the upper layer of the mixture on the sintering machine trolley. Connect a row of hot air heating pipes 3 to the hot air connection pipe 6 and insert the hot air heating pipes 3 into the lower layer of the mixture on the sintering machine trolley.
[0028] (3) Operating method
[0029] Under the normal production condition of the sintering machine, introduce the self-produced superheated steam and hot air into the mixture. Through heat exchange, increase the temperature of the mixture, reduce the negative pressure and solid fuel consumption, and increase the output.
[0030] This utility model is installed and used on a 90m 2 walking beam type sintering machine, and can increase the temperature of the mixture by about 5°C.
Claims
1. A device for increasing the temperature of a sintering mixture, characterized in that: The invention comprises a fixed channel steel (1), a steam heating pipe (2), a hot air heating pipe (3), a connecting plate (4), a steam inlet pipe (5) and a hot air pipe (6), wherein one end of the connecting plate (4) is fixed on the sintering machine trolley, and the other end of the connecting plate (4) is connected to the fixed channel steel (1). The fixed channel steel (1) is provided with a steam inlet pipe (5) and a hot air pipe (6) arranged in parallel up and down, a row of steam heating pipes (2) is connected to the steam inlet pipe (5), and a row of hot air heating pipes (3) is connected to the hot air pipe (6). The row of steam heating pipes (2) connected to the steam inlet pipe (5) and the row of hot air heating pipes (3) connected to the hot air pipe (6) are respectively inserted into the mixed material on the sintering machine trolley.
2. The device for increasing the temperature of a sintering mixed material according to claim 1, characterized in that: A row of steam heating pipes (2) connected to the steam inlet pipe (5) and a row of hot air heating pipes (3) connected to the hot air connecting pipe (6) are arranged in parallel up and down.
3. The device for increasing the temperature of a sintering mixed material according to claim 2, characterized in that: The number of steam heating pipes (2) connected to the steam inlet pipe (5) and the number of hot air heating pipes (3) connected to the hot air connecting pipe (6) are the same.
4. The device for increasing the temperature of sintering mixed materials according to claim 3, characterized in that: A row of steam heating pipes (2) connected to the steam inlet pipe (5) is inserted into the upper layer of the mixed material on the sintering machine trolley, and a row of hot air heating pipes (3) connected to the hot air connecting pipe (6) is inserted into the lower layer of the mixed material on the sintering machine trolley.
5. The device for increasing the temperature of sintering mixed materials according to claim 1, characterized in that: The steam inlet pipe (5) and the hot air connecting pipe (6) are respectively fixed on the fixed channel steel (1).