Adjustable sintering flue gas trolley sealing fume hood

Abstract

This utility model provides an adjustable sintering flue gas trolley sealing hood. It achieves flue gas sealing by using fixed tracks on both sides of the sintering flue gas circulation trolley and a sealing hood positioned above the trolley that fully covers it. The sealing hood includes two movable carriages fixedly connected in pairs and retractable hoods mounted on each carriage. Hood tracks are provided on the movable carriages, and the retractable hoods are mounted above these tracks via hood brackets. The retractable hoods slide and extend along the tracks using these brackets, allowing for easy operation by a single person by moving only a small section of the movable carriage. Furthermore, the retractable sealing hood solves the problem of complex disassembly and adjustment processes in existing trolley sealing hoods, facilitating rapid deployment and maintenance, significantly reducing operational complexity, and improving sintering machine output and economic efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sintering flue gas circulation technology, and more specifically, to an adjustable sintering flue gas trolley sealing hood. Background Technology

[0002] During the use of sintering flue gas recirculation technology, a sealed fume hood needs to be installed above the trolley. This brings the inconvenience of having to disassemble and hoist the trolley fume hood before maintenance can be carried out.

[0003] Specifically, existing technologies mostly use fixed fume hoods, which are fixed to a bracket on the outside of a trolley. Traditional fume hoods cannot be moved. Even if there are movable fume hoods, they are only moved by the brackets and wheels. However, such movable fume hoods have a lot of gaps when supported by brackets, which can easily lead to exhaust gas leakage. This makes it difficult to meet the current ultra-low emission requirements or recirculation emission requirements for CO. Furthermore, the sealed fume hoods formed by mounting the hood on the bracket with wheels are heavy and often require multiple employees to push, which brings great inconvenience to maintenance work.

[0004] Therefore, there is an urgent need for an adjustable sintering flue gas trolley sealing hood that can solve the problems of traditional trolley sealing hoods being unable to completely seal, effectively prevent exhaust gas leakage, and be difficult to drive, and that can facilitate rapid deployment and maintenance, greatly reduce operational complexity, reduce personnel requirements, and improve sintering machine output and economic benefits. Utility Model Content

[0005] In view of the above problems, the purpose of this utility model is to provide an adjustable sintering flue gas trolley sealing hood to solve the problem that most existing technologies use fixed hoods, that is, the hood is fixed to a bracket on the outside of the trolley. Traditional hoods cannot be moved. Even if there are movable hoods, they are only movable because they are supported by brackets and driven by wheels. However, such movable hoods have a lot of gaps when supported by brackets, which may greatly lead to exhaust gas leakage. It is difficult to meet the current ultra-low emission requirements or recirculation emission requirements for CO. Furthermore, the sealed hood formed by setting the hood on the bracket with wheels is heavy and often requires multiple employees to push it, which brings great inconvenience to maintenance work.

[0006] This utility model provides an adjustable sintering flue gas trolley sealing fume hood, comprising:

[0007] Fixed tracks are installed on both sides of the sintering flue gas circulation trolley, and a sealed fume hood is installed above the sintering flue gas circulation trolley and can fully cover the sintering flue gas circulation trolley.

[0008] The sealed fume hood includes two movable vehicle bodies fixedly connected in pairs and retractable fume hoods respectively installed on each movable vehicle body; wherein,

[0009] A smoke hood track is provided on the movable vehicle body;

[0010] The retractable fume hood is mounted above the fume hood track via a fume hood bracket, and the retractable fume hood slides and extends on the fume hood track via the fume hood bracket.

[0011] Preferably, two adjacent movable vehicle bodies are fixed together by metal screws and nuts.

[0012] Preferably, an extended fixing piece is provided at the end of the movable vehicle body;

[0013] Two adjacent movable vehicle bodies are connected by corresponding extended fixing plates, and the metal screws pass through the two corresponding extended fixing plates;

[0014] The nut is screwed onto the metal screw.

[0015] Preferably, the outer fixing plate is disposed on both sides of the movable vehicle body away from the sintering flue gas circulation trolley.

[0016] Preferably, the retractable smoke hood includes a fixed smoke hood panel and a predetermined number of retractable panels;

[0017] A limiting plate is provided above the fixed fume hood;

[0018] Adjacent retractable panels are engaged and limited by matching lower and upper latches. In the retracted state, the retractable panels are sequentially stacked on the outside of the fixed smoke hood panel.

[0019] Preferably, the fume hood support wall is seamlessly fixed to the underside of each retractable piece; and,

[0020] The spacing between the smoke hood support walls on both sides of each retractable sheet increases sequentially, so that when the retractable smoke hood is in the contracted state, the smoke hood support walls on both sides of the retractable sheet are sequentially fitted into the receiving space formed by the smoke hood support walls on both sides of the adjacent retractable sheet.

[0021] Preferably, the top of the fume hood bracket is welded to the retractable sheet;

[0022] A roller is provided at the bottom of the fume hood bracket, and the roller is slidably connected to the fume hood track.

[0023] Preferably, the movable vehicle body includes a sealed frame and wheels disposed below the sealed frame;

[0024] The wheels are mounted on the fixed track and are slidably connected to the fixed track.

[0025] Preferably, the fume hood track is disposed above the sealed frame and is fixed perpendicularly to the side wall of the sealed frame.

[0026] Preferably, the fixed track is installed on the rooting beam of the sintering flue gas circulation trolley.

[0027] As can be seen from the above technical solution, the adjustable sintering flue gas trolley sealing hood provided by this utility model seals the flue gas through fixed tracks set on both sides of the sintering flue gas circulation trolley and a sealing hood set above the sintering flue gas circulation trolley that can fully cover the sintering flue gas circulation trolley. The sealing hood includes two movable car bodies fixedly connected in pairs and retractable hoods respectively set on each movable car body. A hood track is set on the movable car body, and the retractable hood is set above the hood track by a hood bracket. The retractable hood slides and extends on the hood track through the hood bracket, so that the preset number of movable car bodies can be determined according to the size of the sintering flue gas trolley. When maintenance is required, only a small part of the movable car body needs to be moved, which can be easily completed by a single person. Moreover, the sealing hood is retractable, and the overall length of the sealing hood can be determined according to the sintering flue gas trolley. When maintenance is required, the length of the retractable hood can also be directly reduced, and workers can directly perform maintenance on the sintering flue gas trolley. This solves the problem that the circulation ratio of the existing trolley sealing hood cannot be adjusted. By adopting a multi-section connection design, the circulation ratio of the circulating sealing cover can be adjusted under different working conditions, thereby improving its performance under different emission standards. This solves the problem of the complex disassembly and adjustment process of the existing trolley sealing fume hood, making the disassembly and adjustment process of the fume hood simpler and faster, which is conducive to rapid deployment and maintenance, greatly reducing operational complexity, and increasing the output and economic benefits of the sintering machine. Attached Figure Description

[0028] Other objects and results of this invention will become more apparent and readily understood upon referring to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention. In the drawings:

[0029] Figure 1 This is a side view of the adjustable sintering flue gas trolley sealing hood according to an embodiment of the present invention;

[0030] Figure 2 This is a front view of the adjustable sintering flue gas trolley sealing hood according to an embodiment of the present invention;

[0031] The attached diagram is labeled as follows: A. Sintering flue gas circulation trolley; 1. Fixed track; 2. Telescopic fume hood; 3. Movable car body; 4. Sealed car frame; 5. Fume hood track; 6. Fume hood support; 7. Telescopic plate. Detailed Implementation

[0032] In existing technologies, most fume hoods are fixed, meaning they are fixed to a bracket on the outside of a trolley. Traditional fume hoods cannot be moved. Even if movable fume hoods exist, they are only moved by the brackets and wheels. However, such movable fume hoods have a lot of gaps when supported by brackets, which can easily lead to exhaust gas leakage. This makes it difficult to meet the current ultra-low emission requirements or recirculation emission requirements for CO. Furthermore, the sealed fume hoods formed by mounting the hood on the bracket with wheels are heavy and often require multiple workers to push them, which greatly inconveniences maintenance work.

[0033] To address the aforementioned problems, this utility model provides an adjustable sintering flue gas trolley sealing hood. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] To illustrate the adjustable sintering flue gas trolley sealing fume hood provided by this utility model Figures 1-2 The embodiments of this utility model are illustrated by way of example.

[0035] The following description of exemplary embodiments is merely illustrative and is in no way intended to limit the invention or its application or use. Techniques and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques and equipment should be considered part of the specification.

[0036] like Figures 1-2 As shown in the figure, this utility model embodiment provides an adjustable sintering flue gas trolley sealing hood, including fixed tracks 1 set on both sides of the sintering flue gas circulation trolley A and a sealing hood set above the sintering flue gas circulation trolley A, which can fully cover the sintering flue gas circulation trolley A. The sealing hood includes two movable car bodies 3 fixedly connected to each other and retractable hoods 2 respectively set on each movable car body 3. The movable car body 3 is provided with a hood track 5. The retractable hood 2 is set above the hood track by a hood bracket 6. The retractable hood 2 slides and extends on the hood track by the hood bracket 6. The hood bracket is lightweight, so only one worker is needed to manually extend and retract the retractable hood, which makes it convenient for workers to observe or repair the sintering flue gas trolley above it.

[0037] In this embodiment, the fixed track 1 is installed on the rooting beam of the sintering flue gas circulation trolley, so that the two sides of the movable trolley can encircle the sintering flue gas circulation trolley, and the sealed fume hood can cover the sintering flue gas circulation trolley, thereby improving the environmental protection standards of sintering.

[0038] The method of fixing the movable vehicle bodies in pairs is not specifically limited. In one specific embodiment, two adjacent movable vehicle bodies are fixed together by metal screws and nuts. An extended fixing plate is provided at the end of each movable vehicle body. Two adjacent movable vehicle bodies are connected by corresponding extended fixing plates, and the metal screws pass through the two corresponding extended fixing plates. For example, when facing the entire adjustable sintering flue gas trolley sealing hood, the extended fixing plates of the left movable vehicle body and the right movable vehicle body are correspondingly set, and the metal screws pass through the two corresponding extended fixing plates. Nuts are screwed onto the metal screws to fix the extended fixing plates of the two movable vehicle bodies together. The specific position of the extended fixing plates is not specifically limited, as long as it can enable the two movable vehicle bodies to be linked together. In a more specific embodiment, the extended fixing pieces are disposed on both sides of the movable car body away from the sintering flue gas circulation trolley. That is, the extended fixing pieces can be disposed on the two outer sides of the end of the movable car body (the side away from the middle sintering flue gas circulation trolley), that is, an extended fixing piece extends outward from the outer side of the end, so that workers can fix and install it from the outside. In this way, the type of metal screw and nut is not specifically limited, and can be determined according to the volume of the movable car body and the size of the fixing hole opened in the extended fixing piece, as long as it can satisfy the requirement that the extended fixing pieces of two adjacent movable car bodies can be fixed by the metal screw and nut.

[0039] The specific extension method of the retractable smoke hood is not limited. In this embodiment, the retractable smoke hood 2 includes a fixed smoke hood panel and a preset number of retractable panels 7. The fixed smoke hood panel and the retractable panels have the same style and form. In other words, the fixed smoke hood panel is the first retractable panel fixed at the end. It is fixed and cannot be moved. A limiting plate is provided above the fixed smoke hood panel. The limiting plate can be any metal plate that can block the retractable panels adjacent to the fixed smoke hood panel, so as to prevent the retractable panels adjacent to the fixed smoke hood panel from sliding excessively and falling off when the retractable panels are in the retracted state. The adjacent retractable panels are locked and limited by matching lower and upper latches. In the retracted state, the retractable panels are stacked on one side of the fixed smoke hood panel in sequence. For example, each retractable panel rises sequentially from left to right (the end closer to the fixed smoke hood panel is left, and the end away from the fixed smoke hood panel is right). More specifically. A lower latch is provided on the left side of the retractable sheet, and an upper latch is provided on the right side of the retractable sheet; and when the retractable hood is extended to the maximum coverage area, the lower latch of each retractable sheet engages with the upper latch of the adjacent retractable sheet to prevent the retractable sheet from falling off during the stretching process.

[0040] The smoke hood bracket is seamlessly fixed to the underside of each retractable piece 7; and the spacing between the smoke hood support walls on both sides of each retractable piece increases sequentially, so that when the retractable smoke hood is in the retracted state, the smoke hood support walls on both sides of the retractable pieces are sequentially fitted into the receiving space formed by the smoke hood support walls on both sides of the adjacent retractable pieces. That is, the spacing between the smoke hood brackets on both sides of each retractable piece increases sequentially from left to right (from the side closer to the fixed smoke hood piece to the side away from the fixed smoke hood piece), so that when the retractable smoke hood is in the retracted state, the smoke hood brackets on both sides of the left retractable piece are fitted into the smoke hood brackets on both sides of the right retractable piece. Within the accommodating space formed by the fume hood support, the top of the fume hood support is welded to the telescopic plate. Rollers are installed at the bottom of the fume hood support, and the rollers are slidably connected to the fume hood track. This allows for adjustment of the overall length of the sealed fume hood through telescopic adjustment, improving the overall airtightness of the telescopic fume hood. The fume hood support enables the formation of a sealed space above and on both sides of the sintering flue gas circulation trolley. Furthermore, the movable trolley body includes a sealed frame 4 and wheels located below the sealed frame 4. The wheels are mounted on a fixed track and slidably connected to the track, solving the problem of traditional trolley-type sealed fume hoods failing to achieve complete sealing. By adopting an arc-shaped, telescopic, and detachable fume hood design, exhaust gas leakage can be effectively prevented during trolley movement or disassembly, thereby reducing environmental pollution. It can achieve the flue gas circulation rate requirement of over 25%, meeting environmental protection requirements and reducing the environmental pressure on enterprises.

[0041] In this embodiment, the fume hood track is positioned above the sealed frame and is fixed perpendicularly to the side wall of the sealed frame to increase the width of the fume hood track and improve the stability of the entire device.

[0042] As described above, the adjustable sintering flue gas trolley sealing hood provided by this utility model seals the flue gas through fixed tracks on both sides of the sintering flue gas circulation trolley and a sealing hood positioned above the sintering flue gas circulation trolley that can fully cover the trolley. The sealing hood includes two movable car bodies fixedly connected in pairs and retractable hoods respectively mounted on each movable car body. Hood tracks are provided on the movable car bodies, and the retractable hoods are mounted above the hood tracks via hood brackets. The retractable hoods slide and extend on the hood tracks via the hood brackets, allowing the preset number of movable car bodies to be determined according to the size of the sintering flue gas trolley. When maintenance is required, only a small section of the movable car body needs to be moved, which can be easily completed by a single person. Furthermore, the sealing hood is retractable, allowing the overall length of the sealing hood to be determined according to the sintering flue gas trolley. When maintenance is required, the length of the retractable hood can also be directly reduced, allowing workers to directly perform maintenance on the sintering flue gas trolley. This solves the problem of the inability to adjust the circulation ratio of existing trolley sealing hoods. By adopting a multi-section connection design, the circulation ratio of the circulating sealing cover can be adjusted under different working conditions, thereby improving its performance under different emission standards. This solves the problem of the complex disassembly and adjustment process of the existing trolley sealing fume hood, making the disassembly and adjustment process of the fume hood simpler and faster, which is conducive to rapid deployment and maintenance, greatly reducing operational complexity, and increasing the output and economic benefits of the sintering machine.

[0043] The adjustable sintering flue gas trolley sealing hood according to the present invention has been described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various modifications can be made to the adjustable sintering flue gas trolley sealing hood proposed by the present invention without departing from the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. An adjustable sintering flue gas trolley sealing fume hood, characterized in that, include: Fixed tracks are installed on both sides of the sintering flue gas circulation trolley, and a sealed fume hood is installed above the sintering flue gas circulation trolley and can fully cover the sintering flue gas circulation trolley. The sealed fume hood includes two movable vehicle bodies fixedly connected in pairs and retractable fume hoods respectively installed on each movable vehicle body; wherein, A smoke hood track is provided on the movable vehicle body; The retractable fume hood is mounted above the fume hood track via a fume hood bracket, and the retractable fume hood slides and extends on the fume hood track via the fume hood bracket.

2. The adjustable sintering flue gas trolley sealing hood as described in claim 1, characterized in that, The two adjacent movable vehicle bodies are fixed together by metal screws and nuts.

3. The adjustable sintering flue gas trolley sealing hood as described in claim 2, characterized in that, An extended fixing piece is provided at the end of the movable vehicle body; Two adjacent movable vehicle bodies are connected by corresponding extended fixing plates, and the metal screws pass through the two corresponding extended fixing plates; The nut is screwed onto the metal screw.

4. The adjustable sintering flue gas trolley sealing hood as described in claim 3, characterized in that, The outer fixing plates are disposed on both sides of the movable vehicle body away from the sintering flue gas circulation trolley.

5. The adjustable sintering flue gas trolley sealing hood as described in claim 4, characterized in that, The retractable fume hood includes a fixed fume hood panel and a preset number of retractable panels; A limiting plate is provided above the fixed fume hood; Adjacent retractable panels are engaged and limited by matching lower and upper latches. In the retracted state, the retractable panels are sequentially stacked on the outside of the fixed smoke hood panel.

6. The adjustable sintering flue gas trolley sealing hood as described in claim 5, characterized in that, The fume hood bracket is seamlessly fixed to the underside of each retractable panel; and, The spacing between the smoke hood brackets on both sides of each retractable sheet increases sequentially, so that when the retractable smoke hood is in the retracted state, the smoke hood brackets on both sides of the retractable sheet are sequentially fitted into the receiving space formed by the smoke hood brackets on both sides of the adjacent retractable sheet.

7. The adjustable sintering flue gas trolley sealing hood as described in claim 6, characterized in that, The top of the fume hood bracket is welded to the retractable sheet; A roller is provided at the bottom of the fume hood bracket, and the roller is slidably connected to the fume hood track.

8. The adjustable sintering flue car seal hood of claim 7, wherein, The movable vehicle body includes a sealed frame and wheels disposed below the sealed frame; The wheels are mounted on the fixed track and are slidably connected to the fixed track.

9. The adjustable sintering flue gas trolley sealing hood as described in claim 8, characterized in that, The fume hood track is located above the sealed frame and is fixed perpendicularly to the side wall of the sealed frame.

10. The adjustable sintering flue gas trolley sealing hood as described in claim 1, characterized in that, The fixed track is installed on the rooting beam of the sintering flue gas circulation trolley.

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