A vibration cleaning and resetting device for grate bars on a sintering machine trolley

Abstract

This utility model discloses a vibration cleaning and resetting device for grate bars on a sintering machine trolley, belonging to the technical field of sintering machine trolleys. It includes: a sintering machine crossbeam; roller frames are respectively arranged on both sides of the bottom of the crossbeam; a bearing seat passes through the bottom of the roller frames on both sides, and a pressure roller is arranged on the bearing seat; a support pipe is arranged between the roller frames on both sides and on one side of the pressure roller; a frequency conversion vibration component is arranged at the top of the support pipe; and a pressure roller resetting adjustment component is arranged at the rear of the roller frames on both sides. This device can effectively reset the grate bars and adjust the clamping force to ensure the reliability of grate bar reset. Furthermore, the frequency conversion vibration component can effectively vibrate and remove sintered ore powder and particles from the gaps between the grate bars and from the outer surface of the grate bars, ensuring an effective gap between the grate bars on the sintering machine trolley, reducing the negative pressure during the sintering process, thereby reducing the energy consumption of the main exhaust fan motor and meeting the requirements of energy conservation and environmental protection.

Description

Technical Field

[0001] This utility model belongs to the technical field of sintering machine trolleys, specifically a vibration cleaning and resetting device for the grate bars of a sintering machine trolley. Background Technology

[0002] The sintering machine trolley is a key piece of equipment in the sintering production process, mainly used for carrying and transporting sintering materials. Its main beam is equipped with four rows of heat insulation components, and the grate bars are fixed to these components via lower clamps. During the loading stage and sintering process, the grate bars fall naturally under gravity and adhere tightly to the heat insulation components. After the sintering process is completed, the sintering machine trolley is inverted and returns to the head of the sintering machine. When the grate bars return inverted, the adjacent grate bars are squeezed together, causing the grate bars to warp. The grate bars cannot fall naturally under gravity and come into contact with the insulation components. Before entering the bottom silo, the grate bars need to be pressed down and leveled to avoid squeezing between the grate bars on the trolley and the steel structure of the bottom silo, which would cause the sintering machine to stop. In addition, during the sintering process, sintered ore powder and particles are easily trapped in the gaps between the grate bars or adhere to the outer surface of the grate bars, which reduces the effective gap between the grate bars on the sintering machine trolley, resulting in increased negative pressure during the sintering process and increased energy consumption of the main exhaust fan motor during the sintering process.

[0003] Chinese patent CN112146442A discloses a sintering machine trolley grate bar reset device, which provides clamping force to the pressure roller through extension and retraction, independent of the device's weight. The initial position, compression stroke, and clamping force of the pressure roller are adjustable through stud screw advance and spring settings. It features a simple structure, light weight, and easy installation. While this device can effectively press down and flatten raised grate bars, it cannot effectively clean sintered ore powder and particles trapped in the gaps between the grate bars or adhering to their outer surface. The high negative pressure during sintering still results in high energy consumption of the main exhaust fan motor, failing to meet energy-saving and environmental protection requirements.

[0004] Therefore, there is an urgent need for a vibration cleaning and resetting device for the grate bars of a sintering machine trolley, which can effectively reset the warped grate bars and effectively clean the sintered ore powder and particles stuck in the gaps between the grate bars or attached to the outer surface of the grate bars, thereby reducing the energy consumption of the main exhaust fan motor and meeting the requirements of energy conservation and environmental protection. Utility Model Content

[0005] The purpose of this utility model is to provide a vibration cleaning and resetting device for the grate bars of a sintering machine trolley, so as to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A vibration cleaning and resetting device for the grate bars of a sintering machine trolley includes: A sintering machine crossbeam, wherein roller frames are respectively provided on both sides of the bottom of the sintering machine crossbeam, and a bearing seat is provided between the bottom of the two roller frames, and a pressure roller is provided on the bearing seat; A support tube is provided between the two roller frames and on one side of the pressure roller, and a frequency conversion vibration assembly is provided on the top of the support tube; The rear of the roller frames on both sides are provided with a pressure roller reset adjustment assembly.

[0007] The sintering machine trolley grate vibration cleaning and resetting device according to this utility model has at least the following technical effects: This sintering machine trolley grate vibration cleaning and reset device operates continuously during sintering ore production. The pressure rollers are driven by the trolley to perform circular motion, and the weight of the roller frames on both sides and the pressure rollers themselves provides downward clamping force. When the grate bars that have been raised on the trolley surface come into contact with the pressure rollers, the grate bars are pressed down by the clamping force, thus achieving reset. Furthermore, the pressure roller reset adjustment component allows the operator to adjust the clamping force from outside the device, ensuring the reliability of grate bar reset, avoiding structural damage to the trolley, and preventing shutdown of the annular cooler, thereby improving production efficiency. In addition, the frequency conversion vibration component can effectively vibrate and remove sintered ore powder and particles from the gaps between the grate bars and from the outer surface of the grate bars, ensuring an effective gap between the grate bars on the sintering machine trolley, reducing the negative pressure during the sintering process, thereby reducing the energy consumption of the main exhaust fan motor and meeting the requirements of energy conservation and environmental protection.

[0008] As a further embodiment of this utility model: the variable frequency vibration assembly includes a base disposed on the top of the support tube, and a variable frequency exciter is disposed on the base.

[0009] As a further embodiment of this utility model: two bases are provided, and a frequency converter is provided on the top of each of the two bases.

[0010] As a further embodiment of this utility model: the variable frequency vibration assembly also includes a control box located at the rear of the sintering machine crossbeam, and the variable frequency vibrator is connected to the control box via a cable.

[0011] The variable frequency vibration assembly includes a base mounted on top of the support tube, with a variable frequency vibrator installed on the base; there are two bases, each with a variable frequency vibrator on top; the assembly also includes a control box located at the rear of the sintering machine crossbeam, with the variable frequency vibrators connected to the control box via cables; the control box controls the start and stop of the two variable frequency vibrators and adjusts their amplitude, enabling the vibrators to generate high-frequency vibrations during the downward pressure applied by the pressure rollers. This vibration dislodges sintered ore powder and particles from the gaps between the grate bars and from the surface of the grate bars, ensuring an effective gap between the grate bars on the sintering machine trolley, reducing the negative pressure during the sintering process, and thus reducing the energy consumption of the main exhaust fan motor, meeting the requirements of energy conservation and environmental protection.

[0012] As a further embodiment of this utility model: the pressure roller reset adjustment assembly includes steel rope supports disposed on the rear of the two side roller frames, and steel ropes are disposed on the steel rope supports.

[0013] As a further embodiment of this utility model: a fixed pulley block crossbeam is provided at the rear of the sintering machine crossbeam, and a fixed pulley block is provided at the bottom of the fixed pulley block crossbeam.

[0014] As a further embodiment of this utility model: a counterweight box is provided at the lower part of the fixed pulley group, and the steel rope is connected to the counterweight box through the fixed pulley group.

[0015] The pressure roller reset adjustment assembly includes steel rope supports mounted on the rear of the roller frames on both sides, with steel ropes mounted on the supports; a fixed pulley block beam is mounted at the rear of the sintering machine crossbeam, with a fixed pulley block at the bottom of the beam; a counterweight box is mounted at the bottom of the fixed pulley block, and the steel rope is connected to the counterweight box via the fixed pulley block; by adjusting the weight of the counterweight box, the downward gravity of the counterweight box is transformed into an oblique tension force through the steel rope and the fixed pulley block. The other end of the steel rope, through the steel rope supports, transforms the roller frame into a downward clamping force, ensuring that the pressure roller can effectively contact the grate bars during its circular motion. This provides sufficient clamping force to reset any raised grate bars, reducing the probability of equipment failure caused by the grate bars failing to reset. Furthermore, operators only need to adjust the weight of the counterweight box externally to change the clamping force of the pressure roller, greatly reducing operational difficulty and labor intensity, and improving operational safety and efficiency.

[0016] As a further embodiment of this utility model: roller frame seats are respectively provided on both sides of the bottom of the sintering machine crossbeam, and the roller frames on both sides are respectively arranged between the roller frame seats on both sides.

[0017] By setting roller frame seats on both sides of the bottom of the sintering machine crossbeam, and placing the roller frames between the two roller frame seats, the pressure rollers are subjected to various forces from the sintering machine trolley and grate bars during the operation of the sintering machine. The roller frame seats provide a solid and stable support foundation for the roller frames, which can effectively transfer and distribute these forces to the sintering machine crossbeam, ensuring the stability of the entire device structure, avoiding structural deformation or damage caused by uneven force, and ensuring that the equipment can operate stably for a long time.

[0018] As a further embodiment of this utility model: a first through hole is provided in the middle of the roller frame seat, a second through hole is provided at one end of the roller frame, and a pin is also provided, the pin passing through the first through hole and the second through hole.

[0019] Because the roller frame seat has a first through hole in the middle and a second through hole at one end, and also includes a pin, which passes through the first and second through holes; during installation, simply align the second through hole of the roller frame with the first through hole of the roller frame seat, and then insert the pin to complete the connection between the roller frame and the roller frame seat. When maintenance, replacement or repair of the roller frame is required, simply pull out the pin to easily remove the roller frame from the roller frame seat, greatly shortening the installation and disassembly time and improving the efficiency of equipment maintenance.

[0020] As a further embodiment of this utility model: a third through hole is provided at one end of the pin shaft, and a cotter pin is provided in the third through hole.

[0021] Because a third through hole is provided at one end of the pin, a cotter pin can be installed in the third through hole to effectively lock the pin, preventing it from gradually loosening and falling off under vibration and impact. This reduces the risk of equipment failure and safety accidents caused by loosening or falling off the pin, reduces downtime and maintenance costs caused by equipment failure, and ensures the stability of the connection between the roller frame and the roller frame seat. Attached Figure Description

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 A schematic diagram of a vibration cleaning and resetting device for the grate bars of a sintering machine trolley; Figure 2 for Figure 1 A side view structural diagram.

[0024] Figure label: 1. Sintering machine crossbeam; 2. Roller frame; 3. Bearing seat; 4. Pressure roller; 5. Support pipe; 6. Base; 7. Variable frequency vibrator; 8. Control box; 9. Steel rope support; 10. Steel rope; 11. Fixed pulley block crossbeam; 12. Fixed pulley block; 13. Counterweight box; 14. Roller frame seat; 15. Pin shaft; 16. Cotter pin. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] like Figure 1 and Figure 2 The present invention, as shown in this embodiment, discloses a vibration cleaning and resetting device for the grate bars of a sintering machine trolley, comprising: a sintering machine crossbeam 1; roller frames 2 are respectively arranged on both sides of the bottom of the sintering machine crossbeam 1; a bearing seat 3 is provided between the bottom of the two roller frames 2; a pressure roller 4 is arranged on the bearing seat 3; a support pipe 5 is arranged between the two roller frames 2 and on one side of the pressure roller 4; a frequency conversion vibration component is arranged on the top of the support pipe 5; and a pressure roller resetting adjustment component is arranged at the rear of the two roller frames 2.

[0032] Specifically, during sintering ore production, the sintering machine trolley continuously operates, and the pressure roller 4 is driven by the sintering machine trolley to make a circular motion. The weight of the roller frames 2 on both sides and the pressure roller 4 provides downward clamping force. When the grate bars that have been raised on the trolley surface come into contact with the pressure roller 4, the grate bars are pressed down by the clamping force to achieve reset. Furthermore, the pressure roller reset adjustment component allows the operator to adjust the clamping force from outside the device, ensuring the reliability of grate bar reset, avoiding structural damage to the trolley, and preventing the annular cooler from stopping, thereby improving production efficiency. In addition, the frequency conversion vibration component can effectively vibrate and remove sintered ore powder and particles in the gaps between the grate bars and on the outer surface of the grate bars, ensuring the effective gap between the grate bars of the sintering machine trolley, reducing the negative pressure in the sintering process, thereby reducing the energy consumption of the main exhaust fan motor and meeting the requirements of energy conservation and environmental protection.

[0033] like Figure 1 and Figure 2 As shown, the frequency conversion vibration assembly includes a base 6 set on the top of the support tube 5, and a frequency conversion vibrator 7 is set on the base 6; there are two bases 6, and the top of each of the two bases 6 is respectively set with a frequency conversion vibrator 7; the frequency conversion vibration assembly also includes a control box 8 set at the rear of the sintering machine crossbeam 1, and the frequency conversion vibrator 7 is connected to the control box 8 through a cable.

[0034] Specifically, the variable frequency vibration assembly includes a base 6 set on the top of the support tube 5, and a variable frequency vibrator 7 is set on the base 6; there are two bases 6, and a variable frequency vibrator 7 is set on the top of each of the two bases 6; the variable frequency vibration assembly also includes a control box 8 set at the rear of the sintering machine crossbeam 1, and the variable frequency vibrator 7 is connected to the control box 8 through a cable; the control box 8 controls the start and stop of the two variable frequency vibrators 7 and adjusts the amplitude of the variable frequency vibrators 7, so that the variable frequency vibrators 7 can make the pressure roller 4 generate high frequency vibration during the process of applying downward pressure to the pressure roller 4, thereby vibrating and separating the sintered ore powder and particles in the gap of the grate bars and attached to the surface of the grate bars, ensuring the effective gap between the grate bars of the sintering machine trolley, reducing the negative pressure in the sintering process, thereby reducing the energy consumption of the main exhaust fan motor and meeting the requirements of energy conservation and environmental protection.

[0035] like Figure 2 As shown, the pressure roller reset adjustment assembly includes steel rope supports 9 set on the rear of the two side roller frames 2, and steel ropes 10 are set on the steel rope supports 9; a fixed pulley block crossbeam 11 is set at the rear of the sintering machine crossbeam 1, and a fixed pulley block 12 is set at the bottom of the fixed pulley block crossbeam 11; a counterweight box 13 is set at the lower part of the fixed pulley block 12, and the steel ropes 10 are connected to the counterweight box 13 through the fixed pulley block 12.

[0036] Specifically, the pressure roller reset adjustment assembly includes steel rope supports 9 located at the rear of the two side roller frames 2, with steel ropes 10 mounted on the supports 9; a fixed pulley block beam 11 is located at the rear of the sintering machine crossbeam 1, and a fixed pulley block 12 is located at the bottom of the fixed pulley block beam 11; a counterweight box 13 is located at the lower part of the fixed pulley block 12, and the steel ropes 10 are connected to the counterweight box 13 via the fixed pulley block 12; by adjusting the weight of the counterweight box 13, the counterweight box 13 is lowered via the steel ropes 10 and the fixed pulley block 12. The force of gravity is changed into an oblique tension. The other end of the steel rope 10 transforms the roller frame 2 into a downward clamping force through the steel rope support 9, ensuring that the pressure roller 4 can effectively contact the grate bars when it makes a circular motion. This allows the pressure roller 4 to have sufficient clamping force to reset the raised grate bars, reducing the probability of equipment failure caused by the grate bars failing to reset. Furthermore, the operator only needs to adjust the weight of the counterweight box 13 externally to change the clamping force of the pressure roller 4, which greatly reduces the difficulty and labor intensity of operation and improves the safety and efficiency of operation.

[0037] According to embodiments of the present invention, such as Figure 1 As shown, roller frame seats 14 are respectively provided on both sides of the bottom of the sintering machine crossbeam 1, and the two roller frames 2 are respectively arranged between the two roller frame seats 14.

[0038] Specifically, roller support seats 14 are set on both sides of the bottom of the sintering machine crossbeam 1, and roller frames 2 are set between the two roller support seats 14. During the operation of the sintering machine, the pressure roller 4 will be subjected to various forces from the sintering machine trolley and the grate bars. The roller support seats 14 provide a solid and stable support foundation for the roller frame 2, which can effectively transfer and distribute these forces to the sintering machine crossbeam 1, ensuring the stability of the entire device structure, avoiding structural deformation or damage caused by uneven force, and ensuring that the equipment can operate stably for a long time.

[0039] Furthermore, the roller frame 14 is provided with a first through hole in the middle, and the roller frame 2 is provided with a second through hole at one end. It also includes a pin 15, which passes through the first through hole and the second through hole.

[0040] Specifically, since the roller frame base 14 has a first through hole in the middle and the roller frame 2 has a second through hole at one end, it also includes a pin 15, which passes through the first through hole and the second through hole. During installation, simply align the second through hole of the roller frame 2 with the first through hole of the roller frame base 14, and then insert the pin 15 to complete the connection between the roller frame 2 and the roller frame base 14. When maintenance, replacement or repair of the roller frame 2 is required, simply pull out the pin 15 to easily remove the roller frame 2 from the roller frame base 14, which greatly shortens the installation and disassembly time and improves the efficiency of equipment maintenance.

[0041] Furthermore, a third through hole is provided at one end of the pin 15, and a cotter pin 16 is provided in the third through hole.

[0042] Specifically, since a third through hole is provided at one end of the pin 15, a cotter pin 16 can be provided in the third through hole to effectively lock the pin 15, preventing the pin 15 from gradually loosening and falling off under the action of vibration and impact. This reduces the risk of equipment failure and safety accidents caused by the loosening or falling off of the pin 15, reduces downtime and maintenance costs caused by equipment failure, and ensures the connection stability between the roller frame 2 and the roller frame seat 14.

[0043] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A vibration cleaning and resetting device for the grate bars of a sintering machine trolley, characterized in that, include: A sintering machine crossbeam (1) is provided with roller frames (2) on both sides of the bottom of the sintering machine crossbeam (1), and a bearing seat (3) is provided between the bottoms of the roller frames (2) on both sides. A pressure roller (4) is provided on the bearing seat (3). A support tube (5) is provided between the two roller frames (2) and on one side of the pressure roller (4), and a frequency conversion vibration assembly is provided on the top of the support tube (5); The roller frames (2) on both sides are provided with a pressure roller reset adjustment assembly at the rear.

2. The sintering machine trolley grate vibration cleaning and resetting device according to claim 1, characterized in that, The variable frequency vibration assembly includes a base (6) disposed on the top of the support tube (5), and a variable frequency exciter (7) is disposed on the base (6).

3. The sintering machine trolley grate vibration cleaning and resetting device according to claim 2, characterized in that, The base (6) is configured as two, and the top of the two bases (6) is respectively provided with a frequency converter (7).

4. The sintering machine trolley grate vibration cleaning and resetting device according to claim 3, characterized in that, The variable frequency vibration assembly also includes a control box (8) located at the rear of the sintering machine crossbeam (1), and the variable frequency vibrator (7) is connected to the control box (8) via a cable.

5. The sintering machine trolley grate vibration cleaning and resetting device according to claim 1, characterized in that, The pressure roller reset adjustment assembly includes a steel rope support (9) provided on the rear of the two side roller frames (2), and a steel rope (10) is provided on the steel rope support (9).

6. The sintering machine trolley grate vibration cleaning and resetting device according to claim 5, characterized in that, A fixed pulley block beam (11) is provided at the rear of the sintering machine beam (1), and a fixed pulley block (12) is provided at the bottom of the fixed pulley block beam (11).

7. The sintering machine trolley grate vibration cleaning and resetting device according to claim 6, characterized in that, The fixed pulley block (12) is provided with a counterweight box (13) at the bottom, and the steel rope (10) is connected to the counterweight box (13) through the fixed pulley block (12).

8. The sintering machine trolley grate vibration cleaning and resetting device according to any one of claims 1 to 7, characterized in that, The bottom of the sintering machine beam (1) is provided with roller frame seats (14) on both sides, and the roller frames (2) on both sides are respectively arranged between the roller frame seats (14) on both sides.

9. The sintering machine trolley grate vibration cleaning and resetting device according to claim 8, characterized in that, The roller frame seat (14) has a first through hole in the middle, and the roller frame (2) has a second through hole at one end. It also includes a pin (15), which passes through the first through hole and the second through hole.

10. The sintering machine trolley grate vibration cleaning and resetting device according to claim 9, characterized in that, A third through hole is provided at one end of the pin (15), and a cotter pin (16) is provided in the third through hole.

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