Sintering machine trolley fire grate bar gap material clamping treatment device

Abstract

The utility model discloses a sintering machine trolley fire grate bar gap material clamping processing device which comprises a supporting frame, a connecting rod rotatably arranged on the supporting frame, a carrier roller arranged on the connecting rod and used for lifting a fire grate bar upwards and a balancing weight arranged on the connecting rod, and the carrier roller and the balancing weight are distributed on the two sides of the rotating center line of the connecting rod. According to the sintering machine trolley fire grate bar gap material clamping processing device, the arranged carrier rollers are tightly attached to the trolley fire grate bars, the carrier rollers are used for lifting upwards, part of the fire grate bars are made to move upwards in a small range, the stability of the fire grate bars is changed, adhesive materials in gaps of the fire grate bars naturally fall off, and therefore the sintering machine trolley fire grate bar gap material clamping processing efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of metal smelting technology, specifically relating to a device for handling material clamping in the grate bars of a sintering machine trolley. Background Technology

[0002] After sintering, some ore residue remains on the sintering trolley after entering the annular cooler. This residue falls into the gaps between the grate bars. If it accumulates excessively and is not dealt with in time, it will seriously affect the air permeability of the sintering trolley. Currently, the material trapped in the gaps between the grate bars is naturally removed by the cooling contraction and gravity during the trolley's return stroke, without any external force to promote cleaning.

[0003] Therefore, the existing technology for dealing with material trapped in the grate gaps relies solely on the simple natural shedding of material. This method has significant limitations and is very difficult to clean manually. If the composition of the raw materials changes, resulting in materials with increased viscosity or expansion rate during sintering, the grate gaps will become completely blocked by powdery material. This material will still adhere to the material during the trolley's return trip and cannot be detached on its own, causing the entire surface to lose its air permeability. This prevents the sintering process from proceeding normally, and restoring it to normal use is also quite difficult. Maintaining this state for a long time will seriously affect output and quality.

[0004] Chinese Patent Application No. 202121925023.5 discloses a sintering machine trolley grate cleaning device, including a mobile platform located above the sintering machine trolley, the mobile platform moving along tracks on both sides, and supports provided at the ends of the tracks; a connecting plate is provided below the mobile platform, the connecting plate is connected to the mobile platform through four telescopic members, an opening is provided in the middle of the connecting plate, a vibrator is provided in the opening, a vibrating plate is provided below the connecting plate, the vibrator is fixed on the vibrating plate, multiple springs are provided around the vibrator, the upper end of the springs abuts against the connecting plate, the lower end of the springs abuts against the vibrating plate, and multiple guide rods are fixed on the vibrating plate, the upper end of the guide rods passing through the connecting plate and connected to the anti-detachment cap.

[0005] The aim is to provide an improved device for handling material trapped in the gaps of the grate bars of a sintering machine trolley, particularly regarding how to improve the efficiency of handling material trapped in the gaps of the grate bars of a sintering machine trolley. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a device for handling material trapped in the gaps of the grate bars of a sintering machine trolley, with the purpose of improving the efficiency of handling material trapped in the gaps of the grate bars of a sintering machine trolley.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sintering machine trolley grate gap clamping material treatment device, including a support frame, a rotatable connecting rod set on the support frame, a roller set on the connecting rod for lifting the grate bars upward, and a counterweight set on the connecting rod, with the roller and counterweight distributed on both sides of the rotation center line of the connecting rod.

[0008] At least one counterweight is provided, and the weight of the counterweight is adjustable.

[0009] The connecting rod is mounted on the support frame via a rotating shaft, and the idler roller is mounted on one end of the connecting rod via a fixed shaft. The axis of the rotating shaft and the axis of the fixed shaft are parallel.

[0010] The fixed shaft is provided with a limiting mechanism for axially limiting the idler roller, and the idler roller includes a roller body and a protective sleeve sleeved on the roller body.

[0011] The limiting mechanism includes a first limiting plate and a second limiting plate disposed on the fixed shaft, and the roller body and the sheath are located between the first limiting plate and the second limiting plate.

[0012] A locking nut is provided on the fixed shaft, and the second limiting plate is located between the idler roller and the locking nut.

[0013] The sheath is made of rubber or plastic.

[0014] This utility model relates to a material clamping treatment device for the gaps in the grate bars of a sintering machine trolley. By using rollers that are closely attached to the grate bars of the trolley and lifting them upwards, a portion of the grate bars are displaced slightly upwards, changing their stability and allowing the material stuck in the gaps to fall off naturally. This improves the efficiency of material clamping treatment for the gaps in the grate bars of the sintering machine trolley. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following:

[0016] Figure 1 This is a schematic diagram of the structure of the sintering machine trolley grate gap material clamping device of this utility model;

[0017] Figure 2 This is a schematic diagram of the arrangement of the sintering machine trolley grate gap material clamping device of this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the sintering machine trolley grate gap material clamping device of this utility model;

[0019] The following are marked in the diagram: 1. Support beam; 2. Base; 3. Counterweight; 4. Connecting rod; 5. Rotating shaft; 6. Fixed shaft; 7. Idler roller; 8. First limiting plate; 9. Second limiting plate; 10. Roller body; 11. Protective sleeve; 12. Locking nut; 13. Grate bar; 14. Trolley. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0021] It should be noted that in the following embodiments, the terms "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0022] like Figures 1 to 3 As shown, this utility model provides a device for treating material clamping in the gaps of the grate bars of a sintering machine trolley, including a support frame, a rotatable connecting rod 4 mounted on the support frame, a roller 7 mounted on the connecting rod 4 for lifting the grate bars upwards, and a counterweight 3 mounted on the connecting rod 4. The roller 7 and the counterweight 3 are distributed on both sides of the rotation center line of the connecting rod 4.

[0023] Specifically, such as Figure 1 As shown, the connecting rod 4 is mounted on the support frame via the rotating shaft 5, and the roller 7 is mounted on one end of the connecting rod 4 via the fixed shaft 6. The axis of the rotating shaft 5 and the axis of the fixed shaft 6 are parallel, and the axis of the rotating shaft 5 is a horizontal line.

[0024] In this embodiment, at least one counterweight 3 is provided, and the weight of the counterweight 3 is adjustable. The counterweight 3 comes in various models with different weights and sizes. The counterweight 3 is installed at the other end of the connecting rod 4, and the height of the roller 7 is greater than the height of the counterweight 3. A slot is provided on the counterweight 3, through which it is installed on the connecting rod 4. The connecting rod 4 is embedded in the slot. The slot extends from the outer surface of the counterweight 3 to the interior of the counterweight 3, and forms an opening on the outer surface of the counterweight 3, which facilitates the assembly and disassembly of the counterweight 3 and the connecting rod 4, and also facilitates the increase or decrease of the number and total weight of the counterweight 3.

[0025] like Figure 1 and Figure 2As shown, three grate gap treatment devices for sintering machine trolleys are installed near the machine head on the return trolley. The three grate gap treatment devices are arranged in sequence along the horizontal direction. The top of the three grate gap treatment devices is connected to the support roller 7, which is connected to the counterweight 3 below through the connecting rod 4. The lifting torque of the device can be adjusted by adjusting the weight of the counterweight 3. The connecting rod 4 is in an inclined state, and the counterweight 3 is located at the lower end of the connecting rod 4. The support roller 7 at the upper end of the connecting rod 4 is close to the grate bars of the trolley above. The support roller 7 lifts part of the grate bars upward, causing the part of the grate bars on the trolley to move upward slightly, changing its stability, and allowing the sticky material in the gap of the adjacent grate bars to fall off naturally.

[0026] like Figure 1 and Figure 2 As shown, the support frame includes a support beam 1 and a base 2 set on the support beam 1. The lower end of the base 2 is fixedly connected to the support beam 1. The connecting rod 4 is installed on the upper end of the base 2 through the rotating shaft 5. The support beam 1 is an H-shaped steel beam. On the connecting rod 4, the distance between the roller 7 and the rotating shaft 5 is less than the distance between the counterweight 3 and the rotating shaft 5.

[0027] like Figure 3 As shown, preferably, a limiting mechanism for axially limiting the idler roller 7 is provided on the fixed shaft 6. The idler roller 7 includes a roller body 10 and a protective sleeve 11 sleeved on the roller body 10. The protective sleeve 11 is made of rubber or plastic and has a circular structure. The roller body 10 is cylindrical, and the roller body 10 and the protective sleeve 11 are coaxially arranged. A through hole is provided at the center of the roller body 10 for the fixed shaft 6 to pass through. The protective sleeve 11 is used to contact the grate bars, avoiding direct contact between the metal roller body 10 and the grate bars, which can reduce the impact on the grate bars and reduce the noise generated during operation. After long-term use, if the protective sleeve 11 is damaged, it can be removed from the roller body 10 and replaced, resulting in low maintenance costs.

[0028] like Figure 3As shown, the limiting mechanism includes a first limiting plate 8 and a second limiting plate 9 mounted on a fixed shaft 6. The roller body 10 and the sheath 11 are located between the first limiting plate 8 and the second limiting plate 9. A through hole is provided at the center of the first limiting plate 8 and the second limiting plate 9, allowing the fixed shaft 6 to pass through. The first limiting plate 8 and the second limiting plate 9 provide axial limiting for the roller body 10 and the sheath 11. The first limiting plate 8 and the second limiting plate 9 are in contact with the end faces of the roller body 10 and the sheath 11, respectively. A locking nut 12 is mounted on the fixed shaft 6. The second limiting plate 9 is sandwiched between the idler roller 7 and the locking nut 12. The locking nut 12 is threaded to the fixed shaft 6, and the end of the fixed shaft 6 has an external thread. This limiting mechanism has a simple structure and facilitates the replacement of the sheath 11. By unscrewing the locking nut 12, the second limiting plate 9 and the idler roller 7 can be disassembled, a new sheath 11 can be replaced, and then the entire assembly can be reinstalled.

[0029] The aforementioned sintering machine trolley grate gap material handling device has a simple structure and is easy to manufacture and install. The number of counterweights 3 can be adjusted at any time according to the usage effect to achieve the purpose of adjusting the lifting torque. This device can not only remove the material between the grate gaps without affecting the operation of the sintering machine trolley, but also ensure safe and reliable long-term operation with a minimum friction coefficient. Its use will effectively address the phenomenon of material accumulation in the grate gaps caused by changes in the raw materials in the mixture.

[0030] In daily sintering production, the composition of raw materials varies, and fluctuations in composition affect their properties. When the viscosity and expansion rate of the finished ore are particularly high, the material between the grate bars cannot fall naturally due to simple thermal expansion and contraction and gravity. This new device will then be activated. Because there are gaps between the grate bars, the roller 7 will lift the grate bars upwards, causing some of the grate bars to shift slightly upwards. This breaks the integrity formed by the gaps between the grate bars being filled, causing some of the binder material to fall off. This creates a "domino effect," causing the grate bars of the entire trolley to loosen sequentially, facilitating the material in the gaps between the grate bars to fall off on its own, thus ensuring air permeability and allowing production to proceed normally.

[0031] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for handling material trapping in the grate gaps of a sintering machine trolley, characterized in that: It includes a support frame, a rotatable connecting rod mounted on the support frame, rollers mounted on the connecting rod for lifting the grate bars upwards, and counterweights mounted on the connecting rod. The rollers and counterweights are distributed on both sides of the rotation center line of the connecting rod.

2. The sintering machine trolley grate gap material handling device according to claim 1, characterized in that: At least one counterweight is provided, and the weight of the counterweight is adjustable.

3. The sintering machine trolley grate gap material handling device according to claim 1, characterized in that: The connecting rod is mounted on the support frame via a rotating shaft, and the idler roller is mounted on one end of the connecting rod via a fixed shaft. The axis of the rotating shaft and the axis of the fixed shaft are parallel.

4. The sintering machine trolley grate gap material handling device according to claim 3, characterized in that: The fixed shaft is provided with a limiting mechanism for axially limiting the idler roller, and the idler roller includes a roller body and a protective sleeve sleeved on the roller body.

5. The sintering machine trolley grate gap material handling device according to claim 4, characterized in that: The limiting mechanism includes a first limiting plate and a second limiting plate disposed on the fixed shaft, and the roller body and the sheath are located between the first limiting plate and the second limiting plate.

6. The sintering machine trolley grate gap material handling device according to claim 5, characterized in that: A locking nut is provided on the fixed shaft, and the second limiting plate is located between the idler roller and the locking nut.

7. The sintering machine trolley grate gap material handling device according to claim 5, characterized in that: The sheath is made of rubber or plastic.

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