Sulfur content proportioning equipment for slag iron

Abstract

The utility model relates to the technical field of iron and steel smelting, and discloses equipment for proportioning the sulfur content of slag iron. The proportioning equipment for the sulfur content of the slag iron comprises a bottom plate, a pressure weighing sensor is fixedly mounted above the bottom plate, a supporting plate is fixedly mounted above the pressure weighing sensor, a supporting frame is fixedly mounted above the supporting plate, a mixing barrel is fixedly mounted above the supporting frame, and the mixing barrel is fixedly mounted above the bottom plate. A connecting pipe is inserted into the lower end of the mixing barrel, a discharging valve is fixedly installed below the connecting pipe, a rotating shaft of a driving motor is connected with the power input end of a gearbox, the output end of the gearbox is located in the center of the top cover, and the top end of a transmission shaft is connected with the output end of the gearbox; the gearbox can amplify the input torque of the driving motor by multiple times and output the input torque to the transmission shaft to increase the rotating torque of the transmission shaft, and the situation that the paddles are stuck and cannot rotate due to the influence of the material weight and friction force in the mixing process can be avoided in the mode.

Description

Technical Field

[0001] The utility model relates to the technical field of steel smelting, in particular to slag iron sulfur content proportioning equipment. Background Art

[0002] From the perspective of smelting, each process is required to reduce the sulfur content in the product as much as possible. In order to achieve the purpose of reducing costs and increasing benefits. In blast furnace ironmaking, both kinetics and thermodynamics are conducive to the removal of sulfur. Therefore, under the current situation, how to reduce the sulfur content in molten iron is an important issue for the blast furnace process. Desulfurization of blast furnace molten iron is the most important desulfurization link in the entire steel production process, and it is also the primary issue in smelting high-quality pig iron.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN213726216U discloses a pyrite slag desulfurization treatment device, which relates to the field of pyrite technology, and is to solve the problem of low desulfurization efficiency of ordinary pyrite slag desulfurization treatment devices in the prior art. A water tank is installed below the crushing box, and the water tank is fixedly connected to the crushing box. A feeding channel is installed on one side of the mixing box, and the water tank and the mixing box are both fixedly connected to the feeding channel. A feeding pipe is installed below the mixing box, and the feeding pipe is fixedly connected to the mixing box. A distribution box is installed on one side of the feeding pipe, and the distribution box is fixedly connected to the feeding pipe. A crushing roller is installed inside the crushing box, and the crushing roller is rotatably connected to the crushing box. A first motor is installed on the front end surface of the crushing box, and the first motor is fixedly connected to the crushing box. The first motor is fixedly connected to the crushing roller through a coupling, and two of the first motor and the crushing roller are provided.

[0004] Increasing the silicon content in slag can affect the activity of sulfur, allowing sulfur to better participate in the reaction and achieve the purpose of removal. The existing proportioning equipment needs to weigh the silicon powder according to the weight of the slag and the sulfur content before mixing. The operation is cumbersome. The slag and silicon powder are mixed by stirring. Due to the influence of the weight of the slag and the friction, the stirring structure may be stuck due to low torque during the mixing process. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a slag iron sulfur content proportioning device, which has the advantages of reducing the weighing operation before mixing and improving the torque of the stirring structure, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag iron sulfur content proportioning equipment, comprising: a bottom plate, a pressure weighing sensor is fixedly installed on the top of the bottom plate, a support plate is fixedly installed on the top of the pressure weighing sensor, a support frame is fixedly installed on the top of the support plate, a mixing barrel is fixedly installed on the top of the support frame, a connecting pipe is inserted through the lower end of the mixing barrel, a discharge valve is fixedly installed below the connecting pipe, a top cover is fixedly installed on the top of the mixing barrel, a driving motor and a gear box are fixedly installed above the top cover, a feeding hopper is inserted through the top of the top cover, a transmission shaft is inserted through the center of the top cover, a bearing is embedded and installed on the outer side of the transmission shaft, a fixed pipe is inserted through the outer side of the transmission shaft, a paddle is fixedly installed on the outer side of the fixed pipe, a limiting frame is inserted through the lower side of the transmission shaft, and an auger is fixedly installed on the bottom end of the transmission shaft; the support plate can facilitate the weight transmission to the pressure weighing sensor.

[0009] As the preferred technical solution of the utility model, the pressure weighing sensor is symmetrically installed above the bottom plate with the center of the bottom plate as the reference, and the top of the support frame is provided with an annular structure which is embedded with the mixing barrel; the pressure weighing sensor can monitor the weight above the support plate.

[0010] As a preferred technical solution of the utility model, the mixing barrel is connected to the discharge valve through a connecting pipe, and the rotating shaft of the driving motor is connected to the power input end of the gear box; the mixing barrel can receive materials.

[0011] As a preferred technical solution of the utility model, the output end of the gear box is located at the center of the top cover, and the feeding hopper passes through the top cover and is connected to the mixing barrel; the gear box can increase the rotational torque of the transmission shaft.

[0012] As a preferred technical solution of the utility model, the top end of the transmission shaft is connected to the output end of the gear box, and the transmission shaft is rotationally connected to the top cover through a bearing; the transmission shaft can drive the fixed pipe and the auger to rotate.

[0013] As a preferred technical solution of the utility model, the fixed tube is installed on the outside of the transmission shaft at equal distances up and down, and the blades are installed on the outside of the fixed tube in a ring shape at equal angles based on the center of the fixed tube; the fixed tube can limit the position of the blades.

[0014] As a preferred technical solution of the utility model, the limit frame is fixedly connected to the mixing barrel, the limit frame is rotationally connected to the transmission shaft through a bearing, and the auger extends from the inside of the mixing barrel to the inside of the connecting pipe; the limit frame can limit the position of the end of the transmission shaft.

[0015] Compared with the prior art, the utility model provides a slag iron sulfur content proportioning device, which has the following beneficial effects:

[0016] 1. The utility model sets a pressure weighing sensor, which is symmetrically installed on the top of the bottom plate with the center of the bottom plate as the reference, and the support plate is fixedly installed on the top of the pressure weighing sensor. The top of the support plate is connected to the mixing barrel through the support frame. During the mixing process, the gravity of the material will be transmitted to the pressure weighing sensor through the support frame and the support plate, and the total weight of the material is monitored by the pressure weighing sensor. In this way, the weight of silicon powder to be added can be calculated according to the weight of the slag iron in the mixing barrel during the mixing and proportioning process, and the total weight of the material after proportioning can be obtained, and then the silicon powder can be added. After the monitoring value of the pressure weighing sensor reaches the total weight of the material, the addition of silicon powder is stopped, and the accurate proportion of slag iron and silicon powder can be achieved according to the sulfur content of the slag iron.

[0017] 2. The utility model adopts the setting of the gear box, the rotating shaft of the driving motor is connected to the power input end of the gear box, the output end of the gear box is located at the center of the top cover, and the top end of the transmission shaft is connected to the output end of the gear box. The gear box can amplify the input torque of the driving motor several times and output it to the transmission shaft to increase the rotational torque of the transmission shaft. This method can avoid the situation where the paddle blades are stuck and cannot rotate due to the influence of material weight and friction during the mixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the base plate and the support frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the mixing barrel and the gear box of the utility model;

[0021] Figure 4 This is a schematic diagram of the drive shaft installation structure of the utility model;

[0022] Among them: 1. Bottom plate; 11. Pressure weighing sensor; 12. Support plate; 13. Support frame; 2. Mixing barrel; 21. Connecting pipe; 22. Discharge valve; 23. Top cover; 24. Drive motor; 25. Gear box; 26. Feed hopper; 3. Transmission shaft; 31. Bearing; 32. Fixed pipe; 33. Paddle; 34. Limit frame; 35. Auger. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4 In this embodiment, a slag iron sulfur content proportioning device includes: a bottom plate 1, a pressure weighing sensor 11 is fixedly installed above the bottom plate 1, a support plate 12 is fixedly installed above the pressure weighing sensor 11, a support frame 13 is fixedly installed above the support plate 12, the pressure weighing sensor 11 is symmetrically installed above the bottom plate 1 with the center of the bottom plate 1 as a reference, and the top of the support frame 13 is provided with an annular structure embedded with the mixing barrel 2.

[0027] Specifically, the bottom plate 1 can support the pressure weighing sensor 11 , the pressure weighing sensor 11 can monitor the pressure borne by the support plate 12 , the support plate 12 can facilitate the weight transmission to the pressure weighing sensor 11 , and the support frame 13 can fix the mixing barrel 2 .

[0028] A mixing barrel 2 is fixedly installed on the top of the support frame 13, a connecting pipe 21 is inserted into the lower end of the mixing barrel 2, a discharge valve 22 is fixedly installed below the connecting pipe 21, a top cover 23 is fixedly installed on the top of the mixing barrel 2, a driving motor 24 and a gear box 25 are fixedly installed above the top cover 23, a feeding hopper 26 is inserted into the top of the top cover 23, the mixing barrel 2 is connected with the discharge valve 22 through the connecting pipe 21, the rotating shaft of the driving motor 24 is connected to the power input end of the gear box 25, the output end of the gear box 25 is located at the center of the top cover 23, and the feeding hopper 26 passes through the top cover 23 and is connected with the mixing barrel 2.

[0029] Specifically, the mixing barrel 2 can receive materials, the connecting pipe 21 can facilitate the materials to enter the discharge valve 22, the top cover 23 can close the upper end of the mixing barrel 2, the driving motor 24 can drive the gear box 25, the gear box 25 can increase the rotational torque of the transmission shaft 3, and the adding hopper 26 can facilitate the addition of materials.

[0030] A transmission shaft 3 is inserted through the center of the top cover 23, a bearing 31 is embedded on the outer side of the transmission shaft 3, a fixing tube 32 is inserted through the outer side of the transmission shaft 3, a paddle 33 is fixedly installed on the outer side of the fixing tube 32, a limiting frame 34 is inserted through the bottom of the transmission shaft 3, and an auger 35 is fixedly installed on the bottom end of the transmission shaft 3.

[0031] The top end of the transmission shaft 3 is connected to the output end of the gear box 25, and the transmission shaft 3 is rotatably connected to the top cover 23 through the bearing 31. The fixed tube 32 is installed on the outside of the transmission shaft 3 at equal distances up and down. The paddles 33 are installed on the outside of the fixed tube 32 in a ring shape at equal angles with the center of the fixed tube 32 as a reference. The limit frame 34 is fixedly connected to the mixing barrel 2, and the limit frame 34 is rotatably connected to the transmission shaft 3 through the bearing 31. The auger 35 extends from the inside of the mixing barrel 2 to the inside of the connecting tube 21.

[0032] Specifically, the transmission shaft 3 can drive the fixed tube 32 and the auger 35 to rotate, the bearing 31 can reduce the friction between the transmission shaft 3 and the top cover 23 and the limiting frame 34 during rotation, the fixed tube 32 can limit the position of the paddle 33, the paddle 33 can mix the material during rotation, the limiting frame 34 can limit the position of the end of the transmission shaft 3, and the auger 35 can facilitate the discharge of materials.

[0033] When in use, the pressure weighing sensor 11 is symmetrically installed on the top of the bottom plate 1 with the center of the bottom plate 1 as the reference, and the support plate 12 is fixedly installed on the top of the pressure weighing sensor 11. The top of the support plate 12 is connected to the mixing barrel 2 through the support frame 13. During the mixing process, the gravity of the material will be transmitted to the pressure weighing sensor 11 through the support frame 13 and the support plate 12. The total weight of the material is monitored by the pressure weighing sensor 11. In this way, the weight of the silicon powder to be added can be calculated according to the weight of the slag iron in the mixing barrel 2 during the mixing ratio process, and the total weight of the material after the ratio is obtained, and then the silicon powder is added. After the monitoring value of the force weighing sensor 11 reaches the total weight of the material, stop adding silicon powder, and the accurate ratio of slag iron and silicon powder can be achieved according to the sulfur content of the slag iron. The rotating shaft of the drive motor 24 is connected to the power input end of the gear box 25, and the output end of the gear box 25 is located at the center of the top cover 23. The top of the transmission shaft 3 is connected to the output end of the gear box 25. The gear box 25 can amplify the input torque of the drive motor 24 several times and output it to the transmission shaft 3 to increase the rotational torque of the transmission shaft 3. This method can avoid the situation where the paddle 33 is stuck and cannot rotate due to the influence of material weight and friction during the mixing process.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag iron sulfur content proportioning device, characterized in that: include: A bottom plate (1), a pressure weighing sensor (11) is fixedly installed above the bottom plate (1), a support plate (12) is fixedly installed above the pressure weighing sensor (11), a support frame (13) is fixedly installed above the support plate (12), a mixing barrel (2) is fixedly installed above the support frame (13), a connecting pipe (21) is inserted through the lower end of the mixing barrel (2), a discharge valve (22) is fixedly installed below the connecting pipe (21), a top cover (23) is fixedly installed above the mixing barrel (2), and the top cover (23) ) are fixedly installed above the top cover (23), a feeding hopper (26) is inserted and installed above the top cover (23), a transmission shaft (3) is inserted and installed in the center of the top cover (23), a bearing (31) is embedded and installed on the outer side of the transmission shaft (3), a fixed tube (32) is inserted and installed on the outer side of the transmission shaft (3), a paddle (33) is fixedly installed on the outer side of the fixed tube (32), a limiting frame (34) is inserted and installed below the transmission shaft (3), and a screw dragon (35) is fixedly installed at the bottom end of the transmission shaft (3).

2. The slag iron sulfur content proportioning equipment according to claim 1 is characterized in that: The pressure weighing sensor (11) is symmetrically installed above the bottom plate (1) with the center of the bottom plate (1) as a reference, and the top end of the support frame (13) is provided with an annular structure that engages with the mixing barrel (2).

3. The slag iron sulfur content proportioning equipment according to claim 1 is characterized in that: The mixing barrel (2) is connected to the discharge valve (22) via a connecting pipe (21), and the rotating shaft of the driving motor (24) is connected to the power input end of the gear box (25).

4. The slag iron sulfur content proportioning equipment according to claim 1 is characterized in that: The output end of the gear box (25) is located at the center of the top cover (23), and the feeding hopper (26) passes through the top cover (23) and is connected to the mixing barrel (2).

5. The slag iron sulfur content proportioning equipment according to claim 1 is characterized in that: The top end of the transmission shaft (3) is connected to the output end of the gear box (25), and the transmission shaft (3) is rotatably connected to the top cover (23) via a bearing (31).

6. The slag iron sulfur content proportioning equipment according to claim 1, characterized in that: The fixed tube (32) is installed on the outer side of the transmission shaft (3) at equal distances up and down, and the blades (33) are installed on the outer side of the fixed tube (32) in a ring shape at equal angles with the center of the fixed tube (32) as a reference.

7. The slag iron sulfur content proportioning equipment according to claim 1 is characterized in that: The limiting frame (34) is fixedly connected to the mixing barrel (2), and the limiting frame (34) is rotatably connected to the transmission shaft (3) via a bearing (31). The auger (35) extends from the interior of the mixing barrel (2) to the interior of the connecting pipe (21).

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