Device for reducing air leakage of sintering machine trolley

Abstract

The utility model discloses a device for reducing air leakage of a sintering machine trolley, which comprises a pair of steel frame structures (4) arranged on the side face of a sintering machine, an annular I-shaped steel rail (1) is erected on the tops of the pair of steel frame structures (4), and a sliding frame (2) is arranged on the I-shaped steel rail (1). High-temperature-resistant fireproof cloth (3) is hung on the sliding frame (2), and the sliding frame (2) is arranged to be capable of driving the high-temperature-resistant fireproof cloth (3) to annularly slide along the I-shaped steel rail (1). The device for reducing air leakage of the sintering machine trolley greatly reduces the air leakage probability of the sintering machine trolley, and is simple in structure, energy-saving, consumption-saving, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a device for reducing air leakage of a sintering machine trolley. Background Art

[0002] During the sintering process, the mixture is spread on the sintering machine trolley, and after the head of the machine ignites the material surface, the negative pressure main exhaust fan at the bottom of the trolley is used to gradually draw the sintering combustion zone to the bottom of the trolley to form sintered ore. The entire sintering machine is composed of 116 trolleys. There are gaps between the trolleys, which cause air leakage points during the exhaust process of the negative pressure main exhaust fan (that is, the wind passes through the gaps during the exhaust process, not through the material layer). At the same time, the trolley slideway leakage and the sintering box sealing pipeline leakage are also related to the sintering machine leakage. As one of the most important control indicators of sintering production air, excessive air leakage of the sintering machine is very unfavorable to the control of the sintering production process, affects the quality of the sintered ore, and is also one of the main reasons for the increase in the return rate (after sintering, the sintered ore <5mm is screened out and returned to the sintering raw material bin through the cold screen. The increase in the return rate corresponds to a decrease in the finished ore, resulting in a decrease in output and an increase in cost). At the same time, in order to ensure that the mixture can completely form sintered ore, the fan power needs to be increased accordingly, resulting in increased energy consumption. The air leakage rate of the sintering machine in the daily production process is also a point that needs to be paid special attention to and checked. The annual air leakage control of the sintering machine is one of the key points of the inspection and maintenance of the sintering equipment.

[0003] Specifically, there are corresponding treatment methods for various air leaks in the current sintering machine. Only the air leaks in the gaps between the sintering machine trolleys are difficult to deal with. The main reasons include: 1. The sintering machine trolley railings become loose and deformed during use, resulting in gaps between the trolley railings; 2. The sintering machine trolleys are driven by crawler transmission, and the trolleys move in real time, so the gaps are sometimes large and sometimes small, but they cannot be sealed with sealants or other items; 3. During the sintering process, the railings are close to the sintered ore, and the temperature of the trolley railings can reach more than 300°C when they are high, which poses a risk of fire (see Figure 1 and Figure 2 ). Utility Model Content

[0004] The utility model aims to provide a device for reducing air leakage of a sintering machine trolley, which greatly reduces the air leakage probability of the sintering machine trolley, has a simple structure, saves energy and consumption, and is safe and reliable.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a device for reducing air leakage of a sintering machine trolley, the device for reducing air leakage of a sintering machine trolley comprises a pair of steel frame structures arranged on the side of the sintering machine, a pair of steel frame structures having an annular I-beam track set on the top, a slide is provided on the I-beam track, a high-temperature resistant fireproof cloth is hung on the slide, and the slide is configured to drive the high-temperature resistant fireproof cloth to slide in an annular manner along the I-beam track.

[0006] Preferably, the slide bracket is detachably mounted on the I-beam rail.

[0007] Preferably, the high temperature resistant and fireproof cloth is detachably mounted on the slide.

[0008] Preferably, the hanging length of the high temperature resistant fireproof cloth is 2 / 3-3 / 4 of the height of the sintering machine trolley.

[0009] Preferably, the slide is provided in plurality and the plurality of slides are evenly spaced apart along the I-beam track.

[0010] Preferably, the high temperature resistant fireproof cloth is a whole piece and the top is simultaneously suspended on a plurality of the slides.

[0011] Preferably, the steel frame structure includes a base located at the bottom, support columns vertically standing on the base, and a cross frame erected on top of the support columns, and the I-beam track is arranged around the cross frame.

[0012] Preferably, a supporting diagonal rod is provided between the cross frame and the supporting column.

[0013] According to the above technical scheme, the utility model welds a steel frame structure on both sides of the sintering machine, makes a circular I-beam track on it, uses a slide to hang the high-temperature fireproof cloth, and then fixes the slide to the I-beam track. When the trolley moves forward, the high-temperature fireproof cloth will be adsorbed to the trolley railing at the gap, which has a blocking effect; and when the trolley runs to the tail of the machine, it is transmitted back to the head of the sintering machine through the circular I-beam track. In this way, the air leakage caused by the gap generated by the operation of the trolley during the sintering process can be eliminated, thereby ensuring the quality of the sintered ore and reducing the energy consumption of the main exhaust fan.

[0014] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1It is a side view of a sintering machine in the prior art;

[0017] Figure 2 It is a top view of the trolley in the prior art;

[0018] Figure 3 It is a structural schematic diagram of a device for reducing air leakage of a sintering machine trolley provided by the utility model;

[0019] Figure 4 The utility model is a diagram showing the use status of the device for reducing air leakage of a sintering machine trolley provided by the utility model.

[0020] Description of Reference Numerals

[0021] 1-I-beam track

[0022] 2-Slide

[0023] 3-High temperature resistant fireproof cloth

[0024] 4-Steel frame structure

[0025] 5-Sintering machine trolley DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] In the present invention, unless otherwise stated, directional words such as "top, bottom" contained in a term merely represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0028] See also Figure 3 and Figure 4 The utility model provides a device for reducing air leakage of a sintering machine trolley, the device for reducing air leakage of a sintering machine trolley comprises a pair of steel frame structures 4 arranged on the side of the sintering machine, a ring-shaped I-beam track 1 is erected on the top of the pair of steel frame structures 4, a slide 2 is arranged on the I-beam track 1, a high-temperature resistant fireproof cloth 3 is suspended on the slide 2, and the slide 2 is arranged to be able to drive the high-temperature resistant fireproof cloth 3 to slide in a ring along the I-beam track 1.

[0029] Through the above technical solution, a steel frame structure 4 is welded on both sides of the sintering machine, and a circular I-beam track 1 is made on it. After the slide 2 is used to hang the high-temperature fireproof cloth 3, the slide 2 is fixed to the I-beam track 1. When the trolley moves forward, the high-temperature fireproof cloth 3 will be adsorbed to the trolley rail at the gap, which has a blocking effect; and when the trolley runs to the tail of the machine, it is transmitted back to the head of the sintering machine through the circular I-beam track 1. In this way, the air leakage caused by the gap generated by the operation of the trolley during the sintering process can be eliminated, thereby ensuring the quality of the sintered ore and reducing the energy consumption of the main exhaust fan.

[0030] In the present embodiment, in order to facilitate installation and disassembly of the device for reducing air leakage of a sintering machine trolley, preferably, the slide 2 is detachably mounted on the I-beam rail 1 .

[0031] Likewise, it is preferred that the high temperature resistant fireproof cloth 3 is detachably mounted on the slide 2 .

[0032] When the trolley moves forward, the gap will absorb the high temperature fireproof cloth 3 onto the trolley railing to achieve a blocking effect. In order to achieve a better blocking effect and prevent air leakage from the sintering trolley, the area of ​​the high temperature fireproof cloth 3 should be increased as much as possible. Specifically, the hanging length of the high temperature fireproof cloth 3 is preferably 2 / 3-3 / 4 of the height of the sintering trolley 5.

[0033] In addition, in order to enable the device for reducing air leakage of the sintering machine trolley to provide a sufficient blocking area and prevent the high-temperature resistant fireproof cloth 3 from generating wrinkles when it is adsorbed and moved forward, it is necessary to provide a uniform pulling force on the high-temperature resistant fireproof cloth 3. Preferably, a plurality of slides 2 are provided and the plurality of slides 2 are evenly spaced along the I-beam rail 1.

[0034] If a single high-temperature fireproof cloth 3 is hung on every two slides 2 for use, it is difficult to ensure the best blocking effect. In order to avoid gaps between two adjacent high-temperature fireproof cloths 3, preferably, the high-temperature fireproof cloth 3 is a whole piece and the top is hung on multiple slides 2 at the same time. In this way, the integrity of the high-temperature fireproof cloth 3 can be greatly improved, and the overall blocking effect can be further improved.

[0035] In addition, in order to optimize the structure of the steel frame structure 4 in the device for reducing air leakage of the sintering machine trolley, the steel frame structure 4 preferably includes a base located at the bottom, support columns vertically standing on the base, and a cross frame erected on the top of the support columns, and the I-beam rail 1 is arranged around the cross frame.

[0036] In order to improve the stability of the top of the steel frame structure 4, preferably, a supporting diagonal rod is provided between the cross frame and the supporting column. The supporting diagonal rod is designed in pairs, which can play an excellent role in strengthening the support, and the overall stability is further improved.

[0037] In summary, the device for reducing air leakage of the sintering machine trolley uses the air leakage in the gap of the sintering machine trolley to adsorb the fireproof cloth to the trolley railing to achieve the effect of blocking the gap, which solves the problem that the gap cannot be blocked during the operation of the sintering machine trolley. The overall structural principle of the device is not complicated and the production is simple. The bracket is welded with angle steel and a circular I-beam track is made for welding and fixing. After the slide is inserted into the I-beam, the fireproof cloth can be hung. The trolley is used to adsorb the fireproof cloth to drive the operation, and no additional motor is required for driving, which saves energy. By blocking the air leakage points in the gap of the sintering machine trolley, the energy consumption of the main exhaust fan is reduced; during the sealing process, the fireproof cloth is close to the trolley, which increases the heat storage of the trolley and reduces the heat loss, which is more beneficial to the control of the sintering production process. At the same time, since the overall temperature of the trolley is relatively high, the use of high-temperature resistant fireproof cloth can avoid the occurrence of fire accidents, which is safe and reliable.

[0038] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0040] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A device for reducing air leakage of a sintering machine trolley, characterized in that: The device for reducing air leakage of a sintering machine trolley comprises a pair of steel frame structures (4) arranged on the side of the sintering machine, a ring-shaped I-beam rail (1) is arranged on the top of the pair of steel frame structures (4), a slide (2) is arranged on the I-beam rail (1), a high-temperature resistant fireproof cloth (3) is suspended on the slide (2), and the slide (2) is arranged to be able to drive the high-temperature resistant fireproof cloth (3) to slide in a ring shape along the I-beam rail (1).

2. The device for reducing air leakage of a sintering machine trolley according to claim 1, characterized in that: The slide frame (2) is detachably mounted on the I-beam rail (1).

3. The device for reducing air leakage of a sintering machine trolley according to claim 1, characterized in that: The high temperature resistant fireproof cloth (3) is detachably mounted on the slide frame (2).

4. The device for reducing air leakage of a sintering machine trolley according to claim 3, characterized in that: The hanging length of the high temperature resistant fireproof cloth (3) is 2 / 3-3 / 4 of the height of the sintering machine trolley (5).

5. The device for reducing air leakage of a sintering machine trolley according to claim 1, characterized in that: The slide frames (2) are provided in plurality and the plurality of slide frames (2) are evenly spaced and arranged along the I-beam track (1).

6. The device for reducing air leakage of a sintering machine trolley according to claim 5, characterized in that: The high temperature resistant fireproof cloth (3) is a whole piece and the top is simultaneously suspended on a plurality of the slide frames (2).

7. The device for reducing air leakage of a sintering machine trolley according to claim 1, characterized in that: The steel frame structure (4) comprises a base at the bottom, a support column vertically standing on the base, and a cross frame erected on the top of the support column, and the I-beam track (1) is arranged around the cross frame.

8. The device for reducing air leakage of a sintering machine trolley according to claim 7, characterized in that: A supporting diagonal rod is provided between the cross frame and the supporting column.

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