Atomizing and water adding system for sintering mixture

Abstract

The utility model discloses a sintering mixture atomizing and water adding system, which belongs to the technical field of sintering and comprises a mixer barrel, a water purifying device, an atomizing and water adding device and a parameter measuring device. The water purifying device is connected with the atomizing and water adding device, and the atomizing and water adding device is arranged in the mixing machine barrel; the water purifying device comprises a settling water tank, a purifying water tank, an atomizing and pressurizing device and a water conveying pipe which are sequentially connected; a water adding control valve is arranged on the water pipe; the atomization water adding device comprises a water beam and a water adding pipe; two ends of the water beam are fixed on support frames at two ends of an inlet and an outlet of the mixer roller; protective plates are respectively arranged on the front and rear sides of the water beam; the two water adding pipes are arranged in parallel, hung at the bottom of the water beam and connected with the water conveying pipe through a tee joint. A plurality of spray heads are uniformly arranged on the water adding pipe and are outwards inclined. According to the utility model, the humidity and oxygen parameters in the sintering mixing cylinder can be reflected while uniform water adding is realized, so that a basis is provided for adjusting the opening degree of the water adding control valve, and the quality of sintered ore is improved.

Description

Technical Field

[0001] This utility model relates to the field of sintering technology, and in particular to a sintering mixture atomization and water addition system. Background Technology

[0002] Sintering is an important step in the steel industry. It involves mixing iron ore powder with other auxiliary raw materials and heating it to a partially molten state to form sinter, which serves as the main raw material for blast furnace ironmaking.

[0003] During the sintering process, the moisture content of the mixture directly affects the quality of the sinter. Too much or too little moisture will affect the strength, reducibility, and particle size distribution of the sinter.

[0004] Traditionally, adding water to the sinter mixture relies primarily on manual experience. This method is not only inefficient but also makes it difficult to ensure the uniformity and stability of water addition. Fluctuations in moisture content can lead to unstable sinter quality, affecting blast furnace conditions and ironmaking efficiency. Insufficient sinter strength can cause the blast furnace charge column to collapse, increasing ironmaking costs and safety risks. Manual water addition depends on workers' experience and intuition, lacking precise control and feedback mechanisms.

[0005] This method is difficult to adapt to changes in the properties of raw materials and fluctuations in production conditions, resulting in inconsistent sinter quality.

[0006] In the sintering production process, the mixture must always maintain a suitable moisture content. Water plays a role in wetting the material and promoting its pelletizing during the preparation of the sintering material. The appropriate moisture content of the sintering material can ensure the permeability of the material layer during sintering, thereby improving the sintering speed and promoting the increase of sintering ore yield and quality. At the same time, water also plays a role in transferring heat and oxygen during the sintering process. Since the water used in the sintering mixture is sewage and circulating water, the existing sintering mixture atomization water addition system is relatively cumbersome and cannot be used for a long time; the purification effect is not ideal. Therefore, this new device is used to improve it.

[0007] With the development of the steel industry, the requirements for the quality of sinter are becoming increasingly stringent, necessitating more precise and stable water addition technology to ensure the uniformity and quality of sinter. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a sintering mixture atomization water addition system that can not only achieve uniform water addition, but also reflect the humidity and oxygen parameters inside the sintering mixing cylinder, providing a basis for adjusting the opening of the water addition control valve, thereby improving the quality of sintered ore.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A sintering mixture atomization water addition system includes a mixer cylinder, a water purification device, an atomization water addition device, and a parameter measuring device; the water purification device is connected to the atomization water addition device, and the atomization water addition device is disposed in the mixer cylinder;

[0011] The water purification device includes a sedimentation tank, a purification tank, an atomizing pressurizing device, and a water supply pipe connected in sequence; a water supply control valve is installed on the water supply pipe.

[0012] The atomizing water supply device includes a water beam and water supply pipes evenly arranged below the water beam;

[0013] The water beam runs horizontally through the mixer cylinder, and its left and right ends are fixed to the support frames at the inlet and outlet ends of the mixer drum, respectively; protective plates are installed on the front and rear sides of the water beam inside the mixer cylinder.

[0014] The water supply pipes are arranged in parallel as two pipes, suspended at the bottom of the water beam, and connected to the water delivery pipe through a tee; several nozzles are evenly arranged on the water supply pipes, and the nozzles are inclined outwards.

[0015] The parameter measuring device includes a humidity sensor and an oxygen concentration sensor mounted on the water beam, and a humidity display and an oxygen concentration display mounted locally.

[0016] A further improvement of this utility model is that the sedimentation tank is configured in several stages, and a filter screen is installed between the last stage sedimentation tank and the purification tank.

[0017] A further improvement of this utility model is that the pressurizing pump is connected to the bottom of the purified water tank.

[0018] A further improvement of this utility model is that the protective plate is inclined outward, with an angle between it and the horizontal ranging from 45° to 60°.

[0019] A further improvement of this utility model is that the angle between the nozzle and the horizontal plane is in the range of 30° to 60°.

[0020] A further improvement of this utility model is that the humidity sensor and the oxygen concentration sensor are both located inside the protective plate.

[0021] A further improvement of this utility model is that the humidity sensor and the oxygen concentration sensor are wirelessly connected to the humidity display and the oxygen concentration display, respectively.

[0022] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0023] 1. This utility model improves the sintering quality by adding a water beam and spray nozzle inside the mixer to uniformly spray water, ensuring stable water addition to the mixture.

[0024] 2. This utility model provides better protection for the water beam by setting a protective plate, preventing the sintered ore from wearing down the water beam.

[0025] 3. This utility model allows the nozzle to spray sintered ore more evenly by setting an inclined angle.

[0026] 4. This utility model, by setting up a water purification device, enables the sewage and circulating water to be fully purified.

[0027] 5. This utility model provides a basis for water quantity adjustment by setting a parameter measuring device, which further improves the quality of sintered ore. Attached Figure Description

[0028] Figure 1 This is a front view of the atomizing water adding device in this utility model;

[0029] Figure 2 This is a left view of the water beam in this utility model;

[0030] The components include: 1. Mixer cylinder; 2. Water beam; 3. Water supply pipe; 4. Nozzle; 5. Support frame; 6. Protective plate; 7. Humidity sensor; and 8. Oxygen concentration sensor. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0033] In the description of this utility model, "a number of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] A sintering mixture atomization water addition system includes a mixer cylinder 1, a water purification device, an atomization water addition device, and a parameter measuring device; the water purification device is connected to the atomization water addition device, and the atomization water addition device is disposed in the mixer cylinder 1;

[0035] The water purification device is used to purify sewage and circulating water, and includes a sedimentation tank, a purification tank, an atomizing pressurization device, and a water delivery pipe. The sedimentation tank is configured in several stages, with a filter screen installed between the last sedimentation tank and the purification tank. The pressurization pump is connected to the bottom of the purification tank and delivers the purified water in the purification tank to the water delivery pipeline at a stable pressure. The water delivery pipeline is connected to a mixer, which then delivers the purified water to the mixer cylinder 1 at a stable pressure. A water supply control valve is installed on the water delivery pipeline to adjust the water volume. Spray nozzles 4 are installed inside the mixer to provide all-round coverage for water supply.

[0036] like Figure 1 As shown, the atomizing water supply device includes a water beam 2 and water supply pipes 3 evenly arranged below the water beam 2;

[0037] The water beam 2 traverses the mixer cylinder 1, and its left and right ends are respectively fixed to the support frames 5 at the inlet and outlet ends of the mixer drum; as shown in the figure Figure 2 As shown, protective plates 6 are respectively installed on the front and rear sides of the water beam 2 inside the mixer cylinder 1. The protective plates 6 are inclined outward, and the angle between them and the horizontal ranges from 45° to 60°.

[0038] Two parallel water supply pipes 3 are suspended at the bottom of the water beam 2 and connected to the water supply pipe via a tee. Several nozzles 4 are evenly arranged on the water supply pipes 3. The nozzles 4 are inclined outwards, with an angle of 30° to 60° with the horizontal.

[0039] The parameter measuring device includes a humidity sensor 7 and an oxygen concentration sensor 8 installed on the water beam 2, and a humidity display and an oxygen concentration display installed locally; the humidity sensor 7 and the oxygen concentration sensor 8 are both installed inside the protective plate 6; the humidity sensor 7 and the oxygen concentration sensor 8 are wirelessly connected to the humidity display and the oxygen concentration display, respectively.

[0040] How to use:

[0041] Connect the wastewater and circulating water to the water purification device, and adjust the water filling control valve according to the readings on the humidity display and oxygen concentration display to keep the humidity and oxygen concentration within a reasonable range.

[0042] In summary, this invention can achieve uniform water addition while also reflecting the humidity and oxygen parameters inside the sintering mixing cylinder, providing a basis for adjusting the opening of the water addition control valve and thus improving the quality of sintered ore.

Claims

1. A sinter mix atomizing water system characterized by: It comprises a mixing machine cylinder (1), a water purifying device, an atomizing water adding device and a parameter measuring device; the water purifying device is connected with the atomizing water adding device, and the atomizing water adding device is arranged in the mixing machine cylinder (1); The water purifying device comprises a sedimentation water pool, a purifying water pool, an atomizing pressurizing device and a water delivery pipe which are connected in sequence; a water adding control valve is arranged on the water delivery pipe; The atomizing water adding device comprises a water beam (2) and water adding pipes (3) which are evenly arranged below the water beam (2); The water beam (2) transversely crosses the mixing machine cylinder (1), and the left and right ends are fixed on the support frames (5) at the inlet and outlet of the mixing machine cylinder (1), respectively; the front and back sides of the water beam (2) inside the mixing machine cylinder (1) are provided with protection plates (6), respectively; The water adding pipes (3) are arranged in parallel as two, are hung on the bottom of the water beam (2) and are connected with the water delivery pipe through a tee joint; a plurality of spray heads (4) are evenly arranged on the water adding pipes (3), and the spray heads (4) are outwardly inclined; The parameter measuring device comprises a humidity sensor (7) and an oxygen concentration sensor (8) which are arranged on the water beam (2), and a humidity display and an oxygen concentration display which are arranged in situ.

2. The sinter mix atomized water addition system of claim 1 wherein: The sedimentation water pool is arranged as several stages, and a filter screen is arranged between the last stage sedimentation water pool and the purifying water pool.

3. The sinter mix atomized water addition system of claim 1 wherein: A pressurizing pump is connected with the bottom of the purifying water pool.

4. The sinter mix atomized water addition system of claim 1 wherein: The protection plates (6) are outwardly inclined and are arranged at an angle of 45°-60° with the horizontal.

5. The sinter mix atomized water addition system of claim 1 wherein: The spray heads (4) are arranged at an angle of 30°-60° with the horizontal.

6. The sinter mix atomized water addition system of claim 1 wherein: The humidity sensor (7) and the oxygen concentration sensor (8) are arranged inside the protection plates (6).

7. The sinter mix atomized water addition system of claim 1 wherein: The humidity sensor (7) and the oxygen concentration sensor (8) are wirelessly connected with the humidity display and the oxygen concentration display, respectively.

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