Blast furnace smelting pressurizing device

Abstract

The utility model relates to the technical field of blast furnace smelting, in particular to a blast furnace smelting pressurizing device which comprises a distribution box, a driving mechanism and an auxiliary assembly, the driving mechanism is installed on the upper surface of the distribution box and electrically connected with the distribution box, a support is arranged on the side surface of the distribution box, and an air blowing mechanism is installed on the upper surface of the support. The air blowing mechanism is connected with the driving end of the driving mechanism. The auxiliary assembly is arranged on the upper surface of the air blowing mechanism. The auxiliary assembly comprises an adjusting unit, the adjusting unit comprises a rotating shaft, the middle section of the rotating shaft penetrates through and is rotationally connected with the air outlet of the air blowing mechanism, the two ends of the rotating shaft are exposed out of the outer wall of the air blowing mechanism, and a baffle is fixedly connected to the surface of the middle section of the rotating shaft. According to the utility model, the auxiliary component is arranged, so that the equipment can ensure the pressure intensity of airflow in a low-speed state, the problem that the smelting quality of a blast furnace is interfered due to the fact that the airflow pressure is reduced when the equipment runs at a low speed is solved, and the pressurizing effect of the equipment is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace smelting, in particular to a blast furnace smelting pressurizing device. Background Art

[0002] Blast furnace smelting is the main method of modern ironmaking. It is a complex high-temperature physical and chemical process. Iron ore, coke, limestone and other raw materials are loaded into the blast furnace in a certain proportion from the top, and hot air is blown in from the bottom. Inside the blast furnace, the coke burns to generate high temperature, providing heat for the reduction reaction. The iron ore is reduced to molten iron by carbon monoxide at high temperature, and slag is produced at the same time. The main product of blast furnace smelting is molten iron, which can be further used for steelmaking. The slag produced can be used for building materials, etc. This process requires strict control of parameters such as temperature, pressure, and raw material ratio to ensure smelting efficiency and product quality. Blast furnace smelting has the advantages of high output and high efficiency, but it also has problems such as high energy consumption and environmental pollution.

[0003] The prior art includes a utility model with publication number CN221054028U, which discloses a hot air utilization device for a blast furnace blower. The patent adopts a blower body, a flange and a connecting pipe. A support frame is welded to the lower surface of the blower body, an air inlet is opened on the upper surface of the blower body, and an air inlet pipe is connected to the outer end face of one side of the air inlet. A filter is embedded and fixed on the inner wall of the air inlet pipe. A fixed net is embedded and fixed on the inner wall of the air inlet pipe on one side of the filter, and a connecting net is embedded and fixed on the inner wall of the air inlet pipe. The outer end face of one side of the blower body is connected to the air inlet pipe. The outer end surface of the connecting pipe is connected with an air outlet pipe, and the outer end surface of one side of the air outlet pipe is connected with a flange plate, the outer end surface of one side of the connecting pipe is connected with a fixed plate, the inner walls of the flange plate and the fixed plate are threadedly connected with a locking rod, and the outer end surfaces on both sides of the locking rod are threadedly connected with nuts, and the outer end surface of the other side of the connecting pipe is connected with a fixed pipe; the existing technology can reduce raw material consumption, increase production, and solve the problem that the blast furnace is the most important process in the iron-making process. During the long period of high-temperature smelting, the lining will be corroded and peeled off, resulting in local or large-scale damage, affecting the normal operation of the blast furnace.

[0004] In the process of pressurizing the blast furnace with the help of a pressurizing device, most of the blowers currently used for pressurizing blast furnaces on the market have fixed air outlet sizes during operation. When the staff adjusts the blower speed, the air volume pressure of the blower will decrease, and the air volume pressure entering the blast furnace will decrease, which will reduce the pressurizing effect of the equipment on the blast furnace. Since the pressure required for smelting in the blast furnace is relatively high, when the air volume pressure of the blower is reduced, it will interfere with the smelting quality of the blast furnace, and then cause defects in the smelting products of the blast furnace. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that the pressure required for blast furnace smelting is relatively high, and when the air volume pressure of the blower is reduced, it will interfere with the smelting quality of the blast furnace, and then cause defects in the smelting products of the blast furnace, and to propose a blast furnace smelting pressurization device.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a blast furnace smelting pressurizing device, comprising a distribution box, a drive mechanism and an auxiliary component, wherein the drive mechanism is mounted on the upper surface of the distribution box and is electrically connected to the distribution box, a bracket is provided on the side surface of the distribution box, a blast mechanism is mounted on the upper surface of the bracket, the blast mechanism is connected to the driving end of the drive mechanism, and the auxiliary component is provided on the upper surface of the blast mechanism;

[0007] The auxiliary component includes an adjusting unit, which includes a rotating shaft, a middle section of the rotating shaft passing through the air outlet of the blowing mechanism and rotatably connected, two ends of the rotating shaft are respectively exposed on the outer wall of the blowing mechanism, a baffle is fixedly connected to the surface of the middle section of the rotating shaft, the baffle is located inside the air outlet of the blowing mechanism, and two ends of the rotating shaft exposed on the outer wall of the blowing mechanism are respectively sleeved with half gears, the side surfaces of the half gears are fixedly connected with snap rings, the snap rings are bolted to the arc surface of the rotating shaft, the upper surface of the air outlet of the blowing mechanism is fixedly connected with a slide rail, the surface of the slide rail is slidably connected with a connecting frame, the upper surface of the connecting frame is fixedly connected with an assembly plate, the lower surface of the assembly plate is fixedly connected with a rack, and the rack is meshed with the half gears;

[0008] The auxiliary component also includes a transmission unit, which includes a T-shaped frame, the T-shaped frame is fixedly connected to the upper surface of the blowing mechanism, the side surface of the T-shaped frame is fixedly connected to the eccentric motor, the inner wall of the T-shaped frame is rotatably connected to the transmission shaft, the transmission shaft is bolted to the driving end of the eccentric motor, the side surface of the connecting frame is fixedly connected to the linkage frame, the inner wall of the linkage frame is fixedly connected to the threaded sleeve, and the threaded sleeve is threadedly connected to the surface of the transmission shaft.

[0009] Preferably, the width of the baffle matches the inner wall of the blowing mechanism, the height of the baffle matches the inner wall of the blowing mechanism, the upper end of the baffle is semicircular, and the lower end of the baffle is set with a quarter circle. By setting the baffle, the air outlet of the blowing mechanism can be blocked, thereby adjusting the air outlet pressure of the blowing mechanism.

[0010] Preferably, there are two half gears, and the two half gears are symmetrically arranged front and back about the blowing mechanism. The number of the retaining rings matches the half gears. Through the cooperation between the half gears and the rack, the rotating shaft can be driven to rotate during the movement of the rack.

[0011] Preferably, the number of the slide rails is two, and the two slide rails are symmetrically arranged front and back with respect to the blowing mechanism. The number of the connecting frames matches the slide rails, and the moving direction of the connecting frames can be guided by the slide rails to ensure the stability of the connecting frames during movement.

[0012] Preferably, the length of the assembly plate is equal to the rack, the number of the assembly plates is two, and the two assembly plates are symmetrically arranged front and back with respect to the blowing mechanism. The number of the racks matches the assembly plates, and the connecting frame and the rack can be connected through the assembly plate, so that the connecting frame can synchronously drive the rack to move when it moves.

[0013] Preferably, the number of the linkage frames is two, and the two linkage frames are horizontally distributed with respect to the transmission shaft. The number of the threaded sleeves matches the linkage frames, and the threaded sleeves cooperate with the transmission shaft to drive the linkage frames to move under the drive of the eccentric motor.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] In the utility model, by setting auxiliary components, when processing is carried out, the distribution box controls the driving mechanism to work, the driving mechanism drives the fan blades in the blast mechanism to rotate, and the fan blades in the process of rotation, suck the outside air into the blast mechanism, and the blast mechanism sends the wind into the blast furnace through the air outlet to increase the air pressure in the blast furnace; when the speed of the equipment is reduced, the switch of the eccentric motor is turned on, the eccentric motor is powered by the power supply of the distribution box, the eccentric motor drives the transmission shaft, the transmission shaft is engaged with the threaded sleeve, the threaded sleeve pulls the connecting frame under the action of the connecting frame, and the connecting frame Under the guidance of the slide rail, the rack is moved in conjunction with the assembly plate. The rack engages with the half gear during movement. The half gear rotates the shaft under the action of the rack, and the shaft drives the baffle to rotate. During the rotation of the baffle, the air outlet of the blower mechanism is blocked, thereby reducing the air outlet of the blower mechanism to increase the pressure of the airflow. By setting auxiliary components, the equipment can ensure the pressure intensity of the airflow at low speed, thereby reducing the problem of reduced airflow pressure when the equipment is running at low speed, thereby interfering with the smelting quality of the blast furnace, and further improving the pressurization effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a blast furnace smelting pressurizing device proposed in the utility model;

[0017] Figure 2 This is a rear structural diagram of a blast furnace smelting pressurizing device proposed by the utility model;

[0018] Figure 3 This utility model proposes a blast furnace smelting pressure device Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 This utility model provides a schematic diagram of the auxiliary component structure of a blast furnace smelting pressurizing device;

[0020] Figure 5 This utility model proposes a blast furnace smelting pressure device Figure 4 Schematic diagram of the structure at point B in the middle.

[0021] Legend:

[0022] 1. Distribution box; 2. Driving mechanism; 3. Bracket; 4. Blowing mechanism; 5. Auxiliary components; 51. Adjustment unit; 511. Rotating shaft; 512. Baffle; 513. Half gear; 514. Snap ring; 515. Slide rail; 516. Connecting frame; 517. Assembly plate; 518. Rack; 52. Transmission unit; 521. T-shaped frame; 522. Eccentric motor; 523. Transmission shaft; 524. Linkage frame; 525. Threaded sleeve. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a blast furnace smelting pressurizing device, comprising a distribution box 1, a driving mechanism 2 and an auxiliary component 5, the driving mechanism 2 is installed on the upper surface of the distribution box 1, the driving mechanism 2 is electrically connected to the distribution box 1, a bracket 3 is provided on the side surface of the distribution box 1, a blast mechanism 4 is installed on the upper surface of the bracket 3, the blast mechanism 4 is connected to the driving end of the driving mechanism 2, and the auxiliary component 5 is provided on the upper surface of the blast mechanism 4.

[0024] In this embodiment: the auxiliary component 5 includes an adjusting unit 51, which includes a rotating shaft 511. The middle section of the rotating shaft 511 is arranged inside the air outlet of the blowing mechanism 4 and is rotatably connected. The two ends of the rotating shaft 511 are respectively exposed on the outer wall of the blowing mechanism 4. The surface of the middle section of the rotating shaft 511 is fixedly connected with a baffle 512. The baffle 512 is located inside the air outlet of the blowing mechanism 4. The two ends of the rotating shaft 511 exposed on the outer wall of the blowing mechanism 4 are respectively sleeved with half gears 513. The side surface of the half gear 513 is fixedly connected with a snap ring 514. The snap ring 514 is bolted to the arc surface of the rotating shaft 511. The upper surface of the air outlet of the blowing mechanism 4 is fixedly connected with a slide rail 515. The surface of the slide rail 515 is slidably connected with a connecting frame 516. The upper surface of the connecting frame 516 is fixedly connected with an assembling plate 517. The lower surface of the assembling plate 517 is fixedly connected with a rack 518. The rack 518 meshes with the half gear 513.

[0025] The auxiliary component 5 also includes a transmission unit 52, which includes a T-shaped frame 521. The T-shaped frame 521 is fixedly connected to the upper surface of the blowing mechanism 4, and the side surface of the T-shaped frame 521 is fixedly connected to the eccentric motor 522. The inner wall of the T-shaped frame 521 is rotatably connected to the transmission shaft 523, and the transmission shaft 523 is bolted to the driving end of the eccentric motor 522. The side surface of the connecting frame 516 is fixedly connected to the linkage frame 524, and the inner wall of the linkage frame 524 is fixedly connected to the threaded sleeve 525, which is threadedly connected to the surface of the transmission shaft 523.

[0026] Specifically, the width of the baffle 512 matches the inner wall of the blowing mechanism 4, the height of the baffle 512 matches the inner wall of the blowing mechanism 4, the upper end of the baffle 512 is semicircular, and the lower end of the baffle 512 is set at a quarter circle. By setting the baffle 512, the air outlet of the blowing mechanism 4 can be blocked, thereby adjusting the air outlet pressure of the blowing mechanism 4.

[0027] Specifically, there are two half gears 513 , which are symmetrically arranged front to back with respect to the air blowing mechanism 4 , and the number of the retaining rings 514 matches the number of the half gears 513 .

[0028] In this embodiment, the half gear 513 cooperates with the rack 518 to drive the rotating shaft 511 to rotate during the movement of the rack 518 .

[0029] Specifically, there are two slide rails 515, and the two slide rails 515 are symmetrically arranged front and back about the blowing mechanism 4. The number of connecting frames 516 matches the slide rails 515. The moving direction of the connecting frame 516 can be guided by the slide rails 515 to ensure the stability of the connecting frame 516 during the movement.

[0030] In this embodiment: the length of the assembly plate 517 is equal to the rack 518, the number of the assembly plates 517 is two, the two assembly plates 517 are arranged symmetrically front and back about the blowing mechanism 4, and the number of the racks 518 matches the assembly plates 517.

[0031] In this embodiment, the connecting frame 516 and the rack 518 can be connected by the assembly plate 517, so that when the connecting frame 516 moves, it can synchronously drive the rack 518 to move.

[0032] Specifically, there are two linkage frames 524 , which are horizontally distributed about the transmission shaft 523 . The number of threaded sleeves 525 matches the number of linkage frames 524 . The threaded sleeves 525 cooperate with the transmission shaft 523 to drive the linkage frames 524 to move under the drive of the eccentric motor 522 .

[0033] Working principle: During processing, the distribution box 1 controls the driving mechanism 2 to work, and the driving mechanism 2 drives the fan blades in the blast mechanism 4 to rotate. During the rotation of the fan blades, the outside air is sucked into the blast mechanism 4, and the blast mechanism 4 sends the wind into the blast furnace through the air outlet to increase the air pressure in the blast furnace; when the speed of the equipment is reduced, the switch of the eccentric motor 522 is turned on, and the eccentric motor 522 is powered by the power supply of the distribution box 1, and the eccentric motor 522 drives the transmission shaft 523, and the transmission shaft 523 is engaged with the threaded sleeve 525. The threaded sleeve 525 pulls the connecting frame 516 under the action of the connecting frame, and the connecting frame 516 is on the slide rail 515. Under the guidance, the rack 518 is moved in conjunction with the assembly plate 517. The rack 518 engages with the half gear 513 during movement. The half gear 513 rotates the shaft 511 under the action of the rack 518. The shaft 511 drives the baffle 512 to rotate. During the rotation of the baffle 512, the air outlet of the blast mechanism 4 is blocked, thereby reducing the air outlet of the blast mechanism 4 to increase the pressure of the airflow. By setting the auxiliary component 5, the equipment can ensure the pressure intensity of the airflow at low speed, thereby reducing the problem that the airflow pressure will decrease when the equipment is running at low speed, thereby interfering with the smelting quality of the blast furnace, and further improving the pressurization effect of the equipment.

Claims

1. A blast furnace smelting pressurizing device, comprising a distribution box (1), a drive mechanism (2) and an auxiliary component (5), characterized in that: The driving mechanism (2) is mounted on the upper surface of the distribution box (1), the driving mechanism (2) is electrically connected to the distribution box (1), a bracket (3) is provided on the side surface of the distribution box (1), a blast mechanism (4) is mounted on the upper surface of the bracket (3), the blast mechanism (4) is connected to the driving end of the driving mechanism (2), and the auxiliary component (5) is provided on the upper surface of the blast mechanism (4); The auxiliary component (5) includes an adjustment unit (51), and the adjustment unit (51) includes a rotating shaft (511). The middle section of the rotating shaft (511) is arranged inside the air outlet of the blowing mechanism (4) and is rotatably connected. The two ends of the rotating shaft (511) are respectively exposed on the outer wall of the blowing mechanism (4). A baffle (512) is fixedly connected to the surface of the middle section of the rotating shaft (511). The baffle (512) is located inside the air outlet of the blowing mechanism (4). The two ends of the rotating shaft (511) exposed on the outer wall of the blowing mechanism (4) are respectively sleeved with half gears (513). ), the side surface of the half gear (513) is fixedly connected with a snap ring (514), the snap ring (514) is bolted to the arc surface of the rotating shaft (511), the upper surface of the air outlet of the blowing mechanism (4) is fixedly connected with a slide rail (515), the surface of the slide rail (515) is slidably connected with a connecting frame (516), the upper surface of the connecting frame (516) is fixedly connected with an assembly plate (517), the lower surface of the assembly plate (517) is fixedly connected with a rack (518), and the rack (518) is meshed with the half gear (513); The auxiliary component (5) further comprises a transmission unit (52), the transmission unit (52) comprising a T-shaped frame (521), the T-shaped frame (521) being fixedly connected to the upper surface of the blowing mechanism (4), the side surface of the T-shaped frame (521) being fixedly connected to an eccentric motor (522), the inner wall of the T-shaped frame (521) being rotatably connected to a transmission shaft (523), the transmission shaft (523) being bolted to the driving end of the eccentric motor (522), the side surface of the connecting frame (516) being fixedly connected to a linkage frame (524), the inner wall of the linkage frame (524) being fixedly connected to a threaded sleeve (525), the threaded sleeve (525) being threadedly connected to the surface of the transmission shaft (523).

2. A blast furnace smelting pressurizing device according to claim 1, characterized in that: The width of the baffle (512) matches the inner wall of the air blowing mechanism (4), the height of the baffle (512) matches the inner wall of the air blowing mechanism (4), the upper end of the baffle (512) is semicircular, and the lower end of the baffle (512) is arranged in a quarter-circular shape.

3. The blast furnace smelting pressurizing device according to claim 1, characterized in that: The number of the half gears (513) is two, and the two half gears (513) are symmetrically arranged front to back with respect to the air blowing mechanism (4). The number of the snap rings (514) matches the number of the half gears (513).

4. The blast furnace smelting pressurizing device according to claim 1, characterized in that: The number of the slide rails (515) is two, and the two slide rails (515) are symmetrically arranged front and back with respect to the air blowing mechanism (4). The number of the connecting frames (516) matches the number of the slide rails (515).

5. The blast furnace smelting pressurizing device according to claim 1, characterized in that: The length of the assembly plate (517) is equal to that of the rack (518), the number of the assembly plates (517) is two, the two assembly plates (517) are symmetrically arranged front and back with respect to the blowing mechanism (4), and the number of the rack (518) matches that of the assembly plates (517).

6. The blast furnace smelting pressurizing device according to claim 1, characterized in that: The number of the linkage frames (524) is two, and the two linkage frames (524) are horizontally distributed with respect to the transmission shaft (523). The number of the threaded sleeves (525) matches the number of the linkage frames (524).

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