Sintering machine trolley sealing device

Abstract

The utility model discloses a sintering machine trolley sealing device, which relates to the technical field of sintering machine trolleys and comprises a floating plate groove arranged at the bottom of a sintering machine trolley and a floating plate arranged in the floating plate groove and contacted with a sintering machine slideway, a notch of the floating plate groove faces downwards, the floating plate is arranged at the notch, and the floating plate groove and the floating plate are connected through an adjusting connecting piece. The movable plate groove is in sliding fit with the adjusting connecting piece, a spring is arranged between the movable plate and the movable plate groove, two elastic bending side sealing plates are connected between the inner top face of the movable plate groove and the upper end face of the movable plate, and the two ends of each elastic bending side sealing plate extend to the two ends of the movable plate respectively. The sintering machine trolley solves the problem that an existing sintering machine trolley is poor in sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering machine trolley technical field especially a sintering machine trolley sealing device. BACKGROUND

[0002] Sintering machine trolley is widely used in the sintering process in the iron and steel metallurgical industry, and its performance directly affects the use effect of sintering machine and product quality. At present, most of the sintering machine trolleys have poor sealing performance, and this condition is particularly prominent in the sintering process. The sealing performance of the sintering machine sealing trolley mainly depends on the sealing structure arranged between the bottom of the trolley and the slide of the air bellow. When the sintering machine trolley sealing fan and combustion fan are blowing, due to the defects of the sealing structure, the air leakage under the trolley is serious, which not only causes a huge waste of energy, but also directly causes multiple problems.

[0003] Firstly, the air leakage phenomenon causes the sintered ore to be blown out with the wind, which directly threatens the safety of the workers at the operating post and increases the risk of work accidents. At the same time, the high-speed impact of the ore on the surface of the equipment will cause wear and corrosion of the surface of the equipment over a long period of time, seriously affecting the normal operation and overall life of the equipment, increasing the maintenance cost and downtime.

[0004] Secondly, the blown-out ore accumulates in the sintering workshop and surrounding floors, forming serious dust raising. These dust not only deteriorates the working environment and harms the respiratory health of workers, but also increases the difficulty and cost of cleaning work. The traditional cleaning method is often inefficient and easy to produce secondary dust raising, further aggravating environmental pollution and having adverse effects on the ecological environment and the quality of life of surrounding residents.

[0005] In order to solve the above problems, it is urgent to innovate and optimize the sealing technology of the sintering machine trolley. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a sintering machine trolley sealing device, which can solve the problem of poor sealing performance of the existing sintering machine trolley.

[0007] In order to solve the above problems, the utility model adopts the technical scheme of: the sintering machine trolley sealing device comprises a movable plate groove arranged at the bottom of the sintering machine trolley and a movable plate arranged in the movable plate groove and in contact with the sintering machine slide, the groove opening of the movable plate groove faces downward, the movable plate is arranged at the groove opening, the movable plate groove and the movable plate are connected through an adjusting connecting piece, the movable plate groove and the adjusting connecting piece are in sliding fit, a spring is arranged between the movable plate and the movable plate groove, two elastic bending side sealing plates are connected between the inner top surface of the movable plate groove and the upper end surface of the movable plate, and the two ends of the elastic bending side sealing plate extend to the two ends of the movable plate respectively.

[0008] In some possible embodiments, there are at least two adjusting connectors arranged on the center line of the runner groove, two elastic bent side sealing plates are symmetrically arranged on the two sides of the adjusting connectors, the upper folded edges of the two elastic bent side sealing plates are fixed by pressing plates, and the lower folded edges of the bent sealing plates are respectively fixed by pressing strips.

[0009] In some possible embodiments, a spacing distance is arranged between the pressing plates, the pressing strips and the adjusting connectors.

[0010] In some possible embodiments, the gap between the side walls of the runner groove and the runner is within 1 mm.

[0011] In some possible embodiments, the runner is provided with a spring positioning groove, and the lower end of the spring is inserted into the spring positioning groove.

[0012] In some possible embodiments, the elastic bent side sealing plate is a symmetrically-structured three-folded stainless steel plate, and the bent part of the three-folded stainless steel plate is in a circular arc shape.

[0013] In some possible embodiments, the maximum compression amount of the spring is 6 mm.

[0014] In the technical scheme of the sintering machine trolley sealing device, the more specific technical scheme can be:

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Two elastic bent side sealing plates are arranged between the inner top surface of the runner groove and the runner, which can block the air leakage between the runner groove and the runner in various states, significantly improves the sealing performance, and reduces the air leakage points; since the side sealing plates are elastic, they can adapt to the slight displacement and deformation of the trolley during operation, thereby maintaining long-term sealing effect; the two ends of the side sealing plates extend to the two ends of the runner, forming a full-range sealing barrier, further preventing air from leaking from the gap between the trolley bottom and the slide, and significantly improving the overall sealing performance of the sintering machine.

[0017] 2、The design of the adjusting connector allows precise adjustment of the maximum compression of the spring, so that the tension of the elastically bent side sealing plates can be flexibly adjusted according to actual working conditions and sealing requirements; by adjusting the compression amount of the spring, the contact pressure and sealing effect between the sealing device, the floating plate groove and the floating plate can be further optimized, ensuring optimal sealing performance under various working conditions; the upper edges of the two side sealing plates are fixed together by the pressing plate, ensuring uniform stress and close fitting of the two elastically bent side sealing plates at the upper part, thereby enhancing the stability of the sealing device; this design avoids deformation or loosening of the side sealing plates due to uneven stress, further improving the sealing effect; the lower edges of the two side sealing plates are fixed by different pressing strips, allowing the two side sealing plates to have a certain space for movement while maintaining a certain tension; this design enables the side sealing plates to better adapt to the small gap changes between the floating plate groove and the floating plate, improving the flexibility and adaptability of the sealing device; at the same time, it can also avoid interference with the connecting piece when adjusting the compression amount of the spring, thereby ensuring the accuracy and reliability of the adjustment.

[0018] 3、When the gap between the side walls of the floating plate groove and the floating plate is controlled within 1mm, the air flow and leakage in the gap can be effectively reduced, thereby improving the sealing performance.

[0019] 4、The spring positioning groove provides a stable support point for the spring, ensuring that the spring does not shift or wobble during installation and use, and can ensure that the spring maintains the correct position when subjected to pressure, thereby effectively achieving the sealing function.

[0020] 5、The side sealing plates are designed with a symmetrical structure of three-fold stainless steel plates, allowing the side sealing plates to evenly distribute stress when under stress, avoiding structural damage caused by stress concentration; the circular-arc-shaped bending part can reduce stress concentration points and improve the overall strength and stability of the side sealing plates; the stainless steel material itself has good elasticity, and the circular-arc-shaped bending design can further enhance the elastic recovery ability of the side sealing plates. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a front view of the sintering machine trolley sealing device.

[0022] Figure 2 is a top view of Figure 1 .

[0023] Figure 3 is a left view of Figure 1 .

[0024] Figure 4 is a sectional view of Figure 1 in the A-A direction.

[0025] Figure 5is a schematic diagram of the working state of the sintering machine trolley sealing device.

[0026] Explanation of reference numerals: 1, floating plate; 2, floating plate groove; 3, screw; 4, adjusting connecting piece; 5, spring; 6, pressing plate; 7, elastic bending side sealing plate; 8, pressing strip; 9, spring positioning groove. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail below in combination with the embodiments of the drawings:

[0028] Figures 1 to 5 The sintering machine trolley sealing device shown mainly comprises a floating plate 1, a floating plate groove 2, an adjusting connecting piece 4, a spring 5 and an elastic bending side sealing plate 7. The floating plate groove 2 is arranged at the bottom of the sintering machine trolley, and the sintering machine trolley is stably connected through two screws 3 and nuts. The slot of the floating plate groove 2 faces downward and is used for accommodating the floating plate 1. The floating plate 1 is arranged at the slot of the floating plate groove 2 and directly contacts the sintering machine slide, and the floating plate groove 2 can move up and down relative to the floating plate 1. The floating plate groove 2 and the floating plate 1 are connected through the adjusting connecting piece 4, and the adjusting connecting piece 4 is arranged at least in two and located on the center line of the floating plate groove 2. The adjusting connecting piece 4 of the embodiment is two screws, the screws are fixedly connected with the floating plate 1 through threads, and the floating plate groove 2 is slidably matched with the round rod part of the screw. The spring 5 is sleeved outside the adjusting connecting piece 4, is arranged between the floating plate 1 and the floating plate groove 2 and provides elasticity and buffering effect. The spring 5 is inserted into the spring positioning groove 9 arranged on the floating plate 1, so that the spring 5 can be stably arranged on the floating plate. The selection of the spring 5 should consider factors such as rigidity, elastic modulus and maximum compression amount, so as to ensure that the spring 5 can provide sufficient elastic force and stability in the working process. Preferably, the maximum compression amount of the spring 5 is set to 6 mm, so as to ensure that the spring 5 can provide sufficient elastic force and stability in the working process. In order to enhance the sealing effect, two elastic bending side sealing plates 7 are connected between the inner top surface of the floating plate groove 2 and the upper end surface of the floating plate 1, the two ends of the elastic bending side sealing plate 7 extend to the two ends of the floating plate 1 respectively, and the elastic bending side sealing plate 7 is symmetrically arranged on the two sides of the adjusting connecting piece 4. The elastic bending side sealing plate 7 is made of a three-fold stainless steel plate with a symmetrical structure, and the bending part is in a circular arc shape, so as to reduce stress concentration and increase elastic recovery capacity. The upper folding edges of the two elastic bending side sealing plates 7 are fixed through the pressing plate 6, and the lower folding edges of the elastic bending side sealing plates 7 are fixed through the corresponding pressing strips 8, so as to ensure that the side sealing plates can be firmly installed between the floating plate groove 2 and the floating plate 1. The pressing plate 6 and the pressing strip 8 are spaced apart from the adjusting connecting piece 4, so that they are in a non-contact state, so as to avoid interference with the adjusting process. It is worth mentioning that the side wall gap between the floating plate groove 2 and the floating plate 1 is controlled to be less than 1 mm, so as to improve the sealing effect. In addition, the floating plate 1 is ground and welded after being fixed on the sintering machine trolley, the pressing plate 6 is symmetrically distributed with countersunk rivets, and the pressing strip 8 is symmetrically distributed with half-round head rivets.

[0029] According to the gap of the sintering machine trolley, the compression amount of the spring 5 and the movement stroke of the movable plate groove 2 can be adjusted by adjusting the tooth distance of the screw. When the gap of the sintering machine trolley is too large, the screw can be loosened to increase the elongation of the spring 5, thereby increasing the contact pressure between the movable plate 1 and the slide, and improving the sealing effect; when the gap of the sintering machine trolley is too small, the screw can be tightened to compress the spring 5, thereby reducing the gap between the movable plate 1 and the slide, and avoiding the occurrence of air leakage.

[0030] When the sintering machine trolley is working, the working state of the sealing device is as follows: with the operation of the sintering machine trolley, the movable plate 1 directly contacts with the slide of the sintering machine and moves relatively. Since the movable plate groove 2 is connected with the movable plate 1 through the adjusting connecting piece 4 (i.e. two screws), and the movable plate groove 2 can move up and down relative to the movable plate 1, this makes the sealing device can adapt to the gap changes that may occur under different working conditions of the sintering machine trolley, see Figure 4 and Figure 5 When the sintering machine trolley generates a gap due to thermal expansion and contraction, wear or load change, the spring 5 plays a key adjusting role. If the gap of the sintering machine trolley is too large, the spring 5 will elongate within its elastic range, thereby increasing the contact pressure of the movable plate 1 on the slide, ensuring that the sealing effect is not affected. This increase in pressure helps to reduce air leakage and improve the overall efficiency of the sintering machine. Conversely, if the gap of the sintering machine trolley is too small, the spring will be compressed, reducing the gap between the movable plate 1 and the slide, and avoiding friction and wear that may be caused by too tight contact. This adjusting ability ensures that the sealing device can maintain stable sealing effect under different gap conditions. At the same time, the two elastic bending side sealing plates 7 further enhance the sealing effect. They are symmetrically arranged on both sides of the adjusting connecting piece 4 and are made of three-fold stainless steel plates with symmetrical structure, which have excellent elasticity and recovery ability. When the movable plate 1 contacts with the slide, the elastic bending side sealing plate 7 can tightly fit between the movable plate groove 2 and the movable plate 1, preventing gas from leaking from the side.

[0031] When the sintering machine trolley is working, the sealing device realizes self-adaptive adjustment and efficient sealing of the gap changes of the sintering machine trolley through the elastic adjustment of the spring 5, the enhanced sealing of the elastic bending side sealing plate 7, and the precise fit of the movable plate 1 and the movable plate groove 2.

Claims

1. A sintering machine trolley sealing device, comprising a sliding plate groove arranged at the bottom of a sintering machine trolley and a sliding plate arranged in the sliding plate groove and in contact with a sintering machine slide, the slot of the sliding plate groove is downward, the sliding plate is arranged at the slot, the sliding plate groove and the sliding plate are connected through an adjusting connector, the sliding plate groove and the adjusting connector are in sliding fit, a spring is arranged between the sliding plate and the sliding plate groove, characterized in that: The inner top surface of the floating plate groove and the upper end surface of the floating plate are connected with two elastic bending side sealing plates, the two ends of the elastic bending side sealing plates respectively extend to the two ends of the floating plate; there are at least two adjusting connecting pieces arranged on the center line of the floating plate groove, the two elastic bending side sealing plates are symmetrically arranged on the two sides of the adjusting connecting pieces, the upper folding edges of the two elastic bending side sealing plates are fixed by pressing plates, and the lower folding edges of the elastic bending side sealing plates are respectively fixed by pressing strips; the elastic bending side sealing plates are three-fold stainless steel plates with a symmetrical structure, and the bending portions of the three-fold stainless steel plates are in an arc shape. ​ 2. The sintering machine car seal apparatus of claim 1, wherein: The pressing plates and the pressing strips are provided with a spacing distance from the adjusting connecting pieces.

3. The sintering machine car seal apparatus of claim 2, wherein: The side wall gap between the floating plate groove and the floating plate is within 1mm.

4. The sintering machine car seal apparatus of claim 3, wherein: The floating plate is provided with a spring positioning groove, and the lower end of the spring is inserted into the spring positioning groove.

5. The sintering machine car seal apparatus of claim 1 wherein: The maximum compression amount of the spring is 6mm.

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