A device for preventing the clogging of a sintering mixer nozzle
Patent Information
- Application Number
- CN202522205393.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-20
AI Technical Summary
[0003]本实用新型所要解决的技术问题是：如何解决烧结混料机喷头堵塞问题
[0010]本实用新型的有益效果是：本实用新型通过采用水池中央安装过滤水箱，一方面保证了过滤水箱中央水温的稳定性，温度波动性小，有利于提高烧结质量；另一方面过滤水箱能够对进入混料机喷头的水中的钙镁离子大量消除，使水中的钙镁离子沉淀或析出，避免或减少混料机喷头的结垢；其它方面过滤水箱结构简单投入少，相比于传统过滤器成本低廉。另一方面可以通过压力表调节压力，通过温度计调节温度，能够实现精确控制，进一步减少了混料机喷头的结垢。
Smart Images
Figure CN224911965U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sintering technology in the metallurgical industry. Background Technology
[0002] In the sintering process of the steel industry, the mixer, as the core equipment for mixing and granulation, has a decisive impact on the quality of sintered ore due to the stable operation of its water supply system. Traditional mixer nozzles are prone to clogging by scale, pipe rust, and other impurities, especially when the water temperature exceeds 60℃. Nozzle clogging directly affects the proportion of small balls in the mixer (ideally above 60%), thus reducing the permeability of the sintering bed. In winter, the manual adjustment of steam intake to increase the mixing temperature is often inaccurate, leading to excessively high water temperatures (above 60℃) and accelerating scale formation. Statistics show that for every 10℃ increase in water temperature, the scaling rate increases by approximately 30%. Existing self-cleaning filters have fixed gaps in the filter screen (approximately 0.5-1mm), which cannot effectively intercept fine particles; during maintenance, the bypass pipeline lacks filtration function, allowing impurities to directly enter the nozzle. Utility Model Content
[0003] The technical problem to be solved by this utility model is: how to solve the problem of nozzle clogging in sintering mixers.
[0004] The technical solution adopted by this utility model is: a device for preventing the nozzle of a sintering mixer from clogging, including a water tank (1), a water pump (4), a filter (5), a water spray pipe (7) and a first waste heat steam pipe (11), the outlet of the first waste heat steam pipe (11) is in the water of the water tank (1), the water spray pipe (7) is connected to the water pump (4) and the nozzle of the sintering mixer, characterized in that: there is a filter water tank (2) in the center of the water tank (1), the water in the water tank (1) enters the filter water tank (2) through the bottom of the filter water tank (2), the water pump (4) is installed in the filter water tank (2), a thermometer (19) is installed in the filter water tank (2), a first valve (15) and a first steam vent pipe (13) are installed on the first waste heat steam pipe (11), and a first vent valve (17) is installed on the first steam vent pipe (13).
[0005] The water filter tank (2) is a water tank with a grid plate at the bottom, and the grid plate is filled with particles (3) with a particle size of 0.5-5cm.
[0006] The particulate matter (3) is one or more of the following: pebbles, coarse sand, sintered particles, and slag.
[0007] The water pump (4) is placed on the particles (3), the filter (5) is placed in the sealed box (6), and the sealed box (6) is placed on the particles.
[0008] A pressure gauge (8) and a second valve (9) are installed on the water spray pipe (7). On the water spray pipe (7), the pressure gauge (8) is further away from the water pump (4) than the filter (5).
[0009] The device also includes a second waste heat steam pipe (12), on which a third valve (16) is installed and a second steam vent pipe (14), on which a second vent valve (18) is installed.
[0010] The beneficial effects of this invention are as follows: By installing a filter water tank in the center of the water tank, this invention ensures the stability of the water temperature in the center of the filter water tank, with minimal temperature fluctuations, which is beneficial for improving sintering quality. Furthermore, the filter water tank can significantly eliminate calcium and magnesium ions in the water entering the mixer nozzle, causing these ions to precipitate or precipitate, thus avoiding or reducing scaling on the mixer nozzle. In other aspects, the filter water tank has a simple structure and requires less investment, making it cheaper than traditional filters. Moreover, the pressure can be adjusted by a pressure gauge, and the temperature by a thermometer, enabling precise control and further reducing scaling on the mixer nozzle. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; The components include: 1. Water tank; 2. Filter tank; 3. Particulate matter; 4. Water pump; 5. Filter; 6. Sealed box; 7. Spray pipe; 8. Pressure gauge; 9. Second valve; 10. Support leg; 11. First waste heat steam pipe; 12. Second waste heat steam pipe; 13. First steam vent pipe; 14. Second steam vent pipe; 15. First valve; 16. Third valve; 17. First vent valve; 18. Second vent valve; 19. Thermometer. Detailed Implementation
[0012] Clogging of the nozzles in a sintering mixer can be caused by various factors. This invention primarily addresses clogging caused by scaling in the nozzles. While using deionized water or adding filters can effectively prevent scaling, these methods are costly. The main objective of this invention is to prevent nozzle clogging in the sintering mixer with minimal economic consumption. The key objective is to reduce the amount of scaling ions in the water at the nozzles of the sintering mixer at the lowest possible cost.
[0013] like Figure 1As shown, a device for preventing clogging of the nozzle of a sintering mixer includes a water tank 1, a water pump 4, a filter 5, a water spray pipe 7, and a first waste heat steam pipe 11. The outlet of the first waste heat steam pipe 11 is located in the water of the water tank 1. The water spray pipe 7 connects the water pump 4 and the nozzle of the sintering mixer. A filter water tank 2 is located in the center of the water tank 1. Water in the water tank 1 enters the filter water tank 2 through the bottom of the filter water tank 2. The water pump 4 is installed in the filter water tank 2. A thermometer 19 is installed in the filter water tank 2. A first valve 15 and a first steam vent pipe 13 are installed on the first waste heat steam pipe 11. A first vent valve 17 is installed on the first steam vent pipe 13.
[0014] In one embodiment, the water tank 1 is a 2m*2m*2m box. The outside of the box is wrapped with thermal insulation material to prevent heat loss. The box should not be too large to avoid excessive heat loss.
[0015] Water pump 4 is a variable frequency water pump, which can save electricity and easily adjust the outlet water pressure.
[0016] Filter 5 uses a common particle filter to prevent large particles from clogging the nozzle of the sintering mixer.
[0017] This invention employs a centrally installed filter water tank in the water pool. This design ensures stable water temperature with minimal fluctuations, improving sintering quality. Furthermore, the filter water tank effectively eliminates calcium and magnesium ions from the water entering the mixer nozzles, causing them to precipitate or precipitate, thus preventing or reducing scaling on the nozzles. The filter water tank also features a simple structure and low investment, making it significantly cheaper than traditional filters. Additionally, the pressure can be adjusted with a pressure gauge, and the temperature with a thermometer, enabling precise control and further reducing scaling on the mixer nozzles.
[0018] The water filter tank 2 is a water tank with a grid plate at the bottom, and the grid plate is filled with particles 3 with a particle size of 0.5-5cm.
[0019] The particulate matter 3 is one or a combination of pebbles, coarse sand, sintered particles, and slag.
[0020] The water pump 4 is placed on the particulate matter 3, the filter 5 is placed in the sealed box 6, and the sealed box 6 is placed on the particulate matter.
[0021] A pressure gauge 8 and a second valve 9 are installed on the water spray pipe 7. On the water spray pipe 7, the pressure gauge 8 is farther away from the water pump 4 than the filter 5.
[0022] The purpose of thermometer 19 is to facilitate the adjustment of the water temperature in the filter tank 2. Adjusting the opening of the first valve 15 ensures that the water temperature in the filter tank 2 remains within the target temperature range, such as 30-50℃. A pressure gauge 8 is installed on the water spray pipe 7, which can adjust the outlet pressure of the water pump 4 as required (by adjusting the water pump frequency and the opening of the second valve).
[0023] In another embodiment, the device further includes a second waste heat steam pipe 12, on which a third valve 16 and a second steam vent pipe 14 are installed, and on which a second vent valve 18 is installed.
Claims
1. A device for preventing clogging of the nozzle of a sintering mixer, comprising a water tank (1), a water pump (4), a filter (5), a water spray pipe (7), and a first waste heat steam pipe (11), wherein the outlet of the first waste heat steam pipe (11) is located in the water of the water tank (1), and the water spray pipe (7) is connected to the water pump (4) and the nozzle of the sintering mixer, characterized in that: The water tank (1) has a filter tank (2) in the center. Water in the water tank (1) enters the filter tank (2) through the bottom of the filter tank (2). A water pump (4) is installed in the filter tank (2). A thermometer (19) is installed in the filter tank (2). A first valve (15) and a first steam vent pipe (13) are installed on the first waste heat steam pipe (11). A first vent valve (17) is installed on the first steam vent pipe (13).
2. The device for preventing clogging of the nozzle of a sintering mixer according to claim 1, characterized in that: The water filter tank (2) is a water tank with a grid plate at the bottom, and the grid plate is filled with particles (3) with a particle size of 0.5-5cm.
3. The device for preventing clogging of the nozzle of a sintering mixer according to claim 2, characterized in that: The water pump (4) is placed on the particles (3), the filter (5) is placed in the sealed box (6), and the sealed box (6) is placed on the particles.
4. The device for preventing clogging of the nozzle of a sintering mixer according to claim 1, characterized in that: A pressure gauge (8) and a second valve (9) are installed on the water spray pipe (7). On the water spray pipe (7), the pressure gauge (8) is further away from the water pump (4) than the filter (5).
5. The device for preventing clogging of the nozzle of a sintering mixer according to claim 1, characterized in that: It also includes a second waste heat steam pipe (12), on which a third valve (16) is installed and a second steam vent pipe (14), on which a second vent valve (18) is installed.