Fine adjustment gate assembly for feeding device of sintering machine and control system of fine adjustment gate assembly

Abstract

The utility model relates to the technical field of feeding devices, in particular to a fine-adjustment gate assembly for a feeding device of a sintering machine and a control system of the fine-adjustment gate assembly. The fine-adjustment gate assembly comprises a fine-adjustment gate and a turning plate hinged to the lower end of the fine-adjustment gate, the fine-adjustment gate is provided with a long-strip-shaped hole penetrating through the front side face and the rear side face of the fine-adjustment gate, and the long-strip-shaped hole is longitudinally formed; a sliding block is slidably connected into the long-strip-shaped hole, the thickness of the sliding block is larger than that of the fine adjustment gate, and the rear side face of the sliding block is fixedly connected with the main adjustment gate. A connecting shaft is detachably connected to the portion, protruding out of the fine-adjustment gate, of the front side of the sliding block and is perpendicular to the sliding block, a bearing is installed at one end of the connecting shaft, and an outer ring of the bearing makes contact with the front side face of the fine-adjustment gate. The fine adjustment driving mechanism is used for driving the fine adjustment gate to slide up and down; the device is simple in structure, time-saving and labor-saving to install and debug, convenient and fast to replace, and very simple and convenient to maintain and overhaul in the later period; when the fine adjustment gate is adjusted, the fine adjustment gate acts more smoothly.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, specifically a fine-tuning gate assembly and its control system for a sintering machine feeding device. Background Technology

[0002] Sintering material feeding is a crucial step in sintering production; the accuracy and uniformity of the feeding directly affect the yield and quality of the sinter. Current technology employs a roller feeder with a main regulating gate and a fine-tuning gate. The main regulating gate is located at the discharge port of the material hopper and is driven by a main drive unit. A row of fine-tuning gates is mounted on the main regulating gate, each with a hinged flap at its lower end. By adjusting the roller feeder's rotation speed in conjunction with the opening of the main and fine-tuning gates, the feed rate is controlled, thus controlling the sintering layer thickness. In current technology, the main regulating gate's opening is adjusted during equipment installation and commissioning by adjusting the main drive unit. Once the appropriate opening is reached, the main regulating gate stops operating. During production, as the roller feeder rotates, the mixture is carried out from the discharge port below the main regulating gate, achieving continuous feeding. Simultaneously, the uniformity of the material distribution is controlled by adjusting the opening of the fine-tuning gates according to the required trolley layer thickness.

[0003] The existing fine-tuning gate is a reciprocating chain plate type, driven by hydraulic or electric components. The existing fine-tuning gate has the following disadvantages: 1. The valve structure is complex, and it is easy to get stuck during adjustment, which seriously affects the uniform feeding and requires manual operation for regular cleaning, increasing the labor intensity of the staff; 2. When encountering large pieces of material that get stuck, the flap at the bottom of the fine-tuning gate needs to be manually adjusted, which increases labor costs; 3. It is not convenient to adjust the opening of the fine-tuning gate in a timely manner according to the uniformity of the material thickness in the trolley, which is not conducive to the production and quality assurance of sintered ore. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a fine-tuning gate assembly and its control system for a sintering machine feeding device that features a simple structure, facilitates smooth sliding of the fine-tuning valve, and enables automatic adjustment of the valve opening.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A fine-tuning gate assembly for a sintering machine feeding device includes a fine-tuning gate and a flap hinged to the lower end of the fine-tuning gate. The fine-tuning gate has an elongated hole that passes through the front and rear sides of the gate. The elongated hole is arranged longitudinally, and a slider is slidably connected in the elongated hole. The thickness of the slider is greater than the thickness of the fine-tuning gate. The rear side of the slider is fixedly connected to a main regulating gate. A connecting shaft is detachably connected to the portion of the slider that protrudes from the fine-tuning gate. The connecting shaft is arranged perpendicular to the slider, and a bearing is installed at one end of the connecting shaft. The outer ring of the bearing contacts the front side of the fine-tuning gate. The assembly also includes a fine-tuning drive mechanism for driving the fine-tuning gate to slide up and down.

[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0008] This new type of structure is simple, saves time and effort in installation and debugging, and is convenient and quick to replace. It makes the user's later maintenance and repair very simple. When adjusting the fine-tuning gate, the fine-tuning gate moves more smoothly.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] Preferably, the sliding connection structure between the slider and the elongated hole is such that the slider has mounting holes that extend through the left and right sides, and guide wheels are rotatably connected in the mounting holes. The guide wheels roll along the side walls of the elongated hole on both sides, which facilitates the slider sliding along the elongated hole.

[0011] Preferably, two horizontal limiting ribs are provided at intervals on the front side of the fine-tuning gate, and the elongated hole is located between the two horizontal limiting ribs; this further limits the movement of the slider.

[0012] Preferably, the output end of the fine-tuning drive mechanism is connected to the upper horizontal limiting rib.

[0013] Preferably, longitudinal stiffeners are provided on the front side of the fine-tuning gate to provide guidance for the rolling of the outer ring of the bearing.

[0014] Preferably, a connecting seat is provided on the lower part of the front side of the flap, the connecting seat is perpendicular to the flap, the connecting seat is provided with a counterweight hanging shaft for suspending the counterweight, and a lifting lug is provided on the counterweight hanging shaft; a spool mounting seat is provided on the front side of the main regulating gate for each fine-tuning gate, a winding shaft is rotatably connected to the spool mounting seat, an adjusting rope is wound on the winding shaft, and the end of the adjusting rope is connected to the corresponding lifting lug.

[0015] This invention also discloses a control system for a fine-tuning gate assembly for a sintering machine feeding device. The system controls the fine-tuning gate assembly for the sintering machine feeding device. A crossbeam is installed between the columns on both sides of the trolley. A level gauge is installed on the crossbeam corresponding to each fine-tuning gate. The level gauge is connected to a controller, which is connected to a fine-tuning drive mechanism. Material thickness is monitored through the level gauges corresponding to each fine-tuning gate. When the difference between the material level gauge reading and the average value of other level gauge readings exceeds a set value, the controller adjusts the opening of the corresponding fine-tuning gate.

[0016] Preferably, it also includes a pressure sensor and a wound motor. Each fine-tuning gate is equipped with a pressure sensor, and each winding shaft is connected to a wound motor. The pressure sensor is connected to the controller, and the controller is connected to the wound motor corresponding to the fine-tuning gate where the pressure sensor is located. When the fine-tuning valve encounters a large piece of material, the pressure sensor on the fine-tuning valve will increase its detection value. When it exceeds the set threshold, the controller will control the wound motor corresponding to this fine-tuning valve to rotate, thereby driving the adjusting rope to pull the flap open and discharge the large piece of material. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a single fine-tuning gate assembly in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the fine-tuning gate assembly, the roller feeder, and the main regulating gate in this embodiment of the utility model.

[0019] Figure 3 This is a schematic diagram of the layout structure of the control system of the fine-tuning gate assembly for the sintering machine feeding device in this embodiment of the present invention.

[0020] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0021] Explanation of reference numerals in the attached drawings: 1. Fine-tuning gate; 2. Flip plate; 3. Long slot; 4. Sliding block; 5. Connecting shaft; 6. Bearing; 7. Mounting hole; 8. Guide wheel; 9. Horizontal limit rib; 10. Connecting seat; 11. Lifting lug; 12. Circular roller feeder; 13. Main regulating gate; 14. Counterweight hanging shaft; 15. Material hopper; 16. Main drive unit; 17. Winding shaft; 18. Column; 19. Level gauge; 20. Trolley; 21. Crossbeam. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0023] like Figure 1As shown, this embodiment provides a fine-tuning gate assembly for a sintering machine feeding device, including a fine-tuning gate 1 and a flap 2 hinged to the lower end of the fine-tuning gate 1. The fine-tuning gate 1 has an elongated hole 3 penetrating its front and rear sides. The elongated hole 3 is longitudinally arranged, and a slider 4 is slidably connected within it. The thickness of the slider 4 is greater than the thickness of the fine-tuning gate 1. The rear side of the slider 4 is fixedly connected to a main adjusting gate 13. A connecting shaft 5 is detachably connected to the portion of the slider 4 protruding from the fine-tuning gate 1. The connecting shaft 5 is perpendicular to the slider 4, and a bearing 6 is installed at one end of the connecting shaft 5. The outer ring of the bearing 6 contacts the front side of the fine-tuning gate 1. The embodiment also includes a fine-tuning drive mechanism for driving the fine-tuning gate 1 to slide up and down. In this embodiment, the detachable connection structure of the connecting shaft 5 is such that a shaft hole is provided on the slider 4, and the connecting shaft 5 passes through the shaft hole and is locked in place by a nut. The fine-tuning drive mechanism can be an electro-hydraulic actuator or a cylinder, as is available in the prior art.

[0024] In use, the fine-tuning drive mechanism drives the fine-tuning gate 1 to slide longitudinally to adjust the opening of the fine-tuning gate 1. When the fine-tuning gate 1 slides longitudinally, the slider 4 slides along the elongated hole 3 to prevent the fine-tuning gate 1 from shifting left or right. The outer ring of the bearing 6 slides longitudinally on the fine-tuning gate 1 to ensure smooth sliding of the fine-tuning gate 1 and to provide guidance for it. Compared with the existing technology, the fine-tuning gate 1 has a simple structure and smoother operation.

[0025] The sliding connection structure between the slider 4 and the elongated hole 3 is as follows: the slider 4 is provided with mounting holes 7 that pass through the left and right sides, and a guide wheel 8 is rotatably connected in the mounting holes 7. The guide wheel 8 rolls along the side walls of the elongated hole 3 on the left and right sides.

[0026] Two horizontal limiting ribs 9 are spaced vertically on the front side of the fine-tuning gate 1, with an elongated hole 3 located between the two horizontal limiting ribs 9; this further limits the movement of the slider 4. The output end of the fine-tuning drive mechanism is connected to the upper horizontal limiting rib 9; specifically, during connection, an L-shaped extension tube is connected to the upper horizontal limiting rib 9, and the upper end of the L-shaped extension tube is connected to the output end of the fine-tuning drive mechanism via a flange, bolts, and nuts; this facilitates the disassembly of the fine-tuning gate 1. Compared with the existing guide rail sliding connection, this structure saves time and effort in installation and debugging, and is very convenient for users in later maintenance and repair. When it is necessary to disassemble the fine-tuning gate 1, the connecting shaft 5 is removed, and the output end of the fine-tuning drive mechanism is disconnected from the upper horizontal limiting rib 9, allowing for easy removal; during use, there is no need for manual periodic cleaning of the guide rail, saving labor costs.

[0027] Longitudinal stiffeners are provided on the front side of the fine-tuning gate 1 to guide the rolling of the outer ring of the bearing 6.

[0028] A connecting seat 10 is provided on the lower part of the front side of the flap 2. The connecting seat 10 is perpendicular to the flap 2. The connecting seat 10 is provided with a counterweight hanging shaft 14 for suspending the counterweight. A lifting lug 11 is provided on the counterweight hanging shaft 14. A bobbin mounting seat is provided on the front side of the main regulating gate 13 for each fine-tuning gate 1. A winding shaft 17 is rotatably connected to the bobbin mounting seat. An adjusting rope is wound on the winding shaft 17. The end of the adjusting rope is connected to the corresponding lifting lug 11. By rotating the winding shaft 17, the adjusting rope is wound on the winding shaft 17, and the corresponding flap can be lifted.

[0029] A crossbeam 21 is provided between the columns 18 on both sides of the trolley 20. The present invention also discloses a control system for a fine-tuning gate 1 assembly for a sintering machine feeding device, which is used to control the fine-tuning gate 1 assembly for a sintering machine feeding device. A level gauge 19 is provided on the crossbeam 21 corresponding to each fine-tuning gate 1. The level gauge 19 is connected to a controller. The level gauge 19 transmits the measured signal to the controller. The controller detects the material thickness. The controller is connected to a fine-tuning drive mechanism to control the fine-tuning drive mechanism to drive the opening of the fine-tuning gate 1. In this embodiment, two level gauges 19 are configured for each fine-tuning gate 1. The material thickness is monitored by the level gauges 19 corresponding to each fine-tuning gate 1. When the difference between the material in the level gauge 19 and the average value of other level gauges 19 is greater than the set value, the controller controls the fine-tuning drive mechanism to adjust the opening of the corresponding fine-tuning gate 1.

[0030] It also includes pressure sensors and wound motors. Each fine-tuning gate 1 is equipped with a pressure sensor, and each wound shaft 17 is connected to a wound motor. The pressure sensor is connected to the controller and transmits the measured pressure signal to the controller. The controller detects the pressure signal and is connected to the wound motor corresponding to the fine-tuning gate 1 where the pressure sensor is located to control the rotation of the output shaft of the wound motor. When the fine-tuning valve encounters a large piece of material, the value detected by the pressure sensor on the fine-tuning valve will increase. When it exceeds the set threshold, the controller controls the wound motor corresponding to this fine-tuning valve to rotate, which in turn drives the adjusting rope to pull the flap 2 open and discharge the large piece of material.

[0031] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A fine-tuning gate assembly for a sintering machine feeding device, comprising a fine-tuning gate (1) and a flap (2) hinged to the lower end of the fine-tuning gate (1), characterized in that: The fine-tuning gate (1) has an elongated hole (3) that runs through the front and rear sides of the fine-tuning gate (1). The elongated hole (3) is arranged longitudinally. A slider (4) is slidably connected in the elongated hole (3). The thickness of the slider (4) is greater than the thickness of the fine-tuning gate (1). The rear side of the slider (4) is fixedly connected to the main regulating gate (13). A connecting shaft (5) is detachably connected to the part of the slider (4) that protrudes from the fine-tuning gate (1). The connecting shaft (5) is arranged perpendicular to the slider (4). A bearing (6) is installed at one end of the connecting shaft (5). The outer ring of the bearing (6) is in contact with the front side of the fine-tuning gate (1). The fine-tuning gate (1) is also included as a fine-tuning drive mechanism for driving the fine-tuning gate (1) to slide up and down.

2. The fine-tuning gate assembly for the sintering machine feeding device according to claim 1, characterized in that: The sliding connection structure between the slider (4) and the elongated hole (3) is as follows: the slider (4) is provided with a mounting hole (7) that runs through the left and right sides, and a guide wheel (8) is rotatably connected in the mounting hole (7). The guide wheel (8) rolls along the side walls of the elongated hole (3) on both sides.

3. The fine-tuning gate assembly for the sintering machine feeding device according to claim 1, characterized in that: The front side of the fine-tuning gate (1) is provided with two horizontal limiting ribs (9) spaced at intervals, and the long strip hole (3) is located between the two horizontal limiting ribs (9).

4. The fine-tuning gate assembly for the sintering machine feeding device according to claim 3, characterized in that: The output end of the fine-tuning drive mechanism is connected to the upper horizontal limiting rib (9).

5. The fine-tuning gate assembly for the sintering machine feeding device according to claim 1, characterized in that: The front side of the fine-tuning gate (1) is provided with longitudinal stiffeners to provide guidance for the rolling of the outer ring of the bearing (6).

6. The fine-tuning gate assembly for the sintering machine feeding device according to claim 1, characterized in that: A connecting seat (10) is provided on the lower part of the front side of the flip plate (2). The connecting seat (10) is perpendicular to the flip plate (2). A counterweight hanging shaft (14) for suspending the counterweight is provided on the connecting seat (10). A lifting lug (11) is provided on the counterweight hanging shaft (14). A bobbin mounting seat is provided on the front side of the main regulating gate (13) corresponding to each fine-tuning gate (1). A winding shaft (17) is rotatably connected to the bobbin mounting seat. An adjusting rope is wound on the winding shaft (17), and the end of the adjusting rope is connected to the corresponding lifting lug (11).

7. A control system for a fine-tuning gate assembly for a sintering machine feeding device, used to control the fine-tuning gate (1) assembly for a sintering machine feeding device as described in claim 6, wherein a crossbeam (21) is provided between the columns (18) on both sides of the trolley (20), characterized in that: Each fine-tuning gate (1) on the crossbeam (21) is equipped with a level gauge (19), and the level gauge (19) is connected to a controller, which is connected to the fine-tuning drive mechanism.

8. The fine-tuning gate control system for the sintering machine feeding device according to claim 7, characterized in that: It also includes a pressure sensor and a wound motor. Each fine-tuning gate (1) is equipped with a pressure sensor, and each winding shaft (17) is connected to a wound motor. The pressure sensor is connected to the controller, and the controller is connected to the wound motor corresponding to the fine-tuning gate (1) where the pressure sensor is located.

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