Multi-adaptation sintering flue gas trolley sealing flue gas hood and method

Abstract

According to the multi-adaptation sintering flue gas trolley sealing flue gas hood and the method, flue gas sealing is carried out through the fixed rails arranged on the two sides of the sintering flue gas circulation trolley and the sealing flue gas hood which is arranged above the sintering flue gas circulation trolley and can fully cover the sintering flue gas circulation trolley; the sealed smoke hood comprises movable vehicle bodies fixedly connected in pairs and telescopic smoke hoods arranged on the movable vehicle bodies respectively, smoke hood rails are arranged on the movable vehicle bodies, the telescopic smoke hoods are arranged above the smoke hood rails through smoke hood supporting walls, and the telescopic smoke hoods stretch out and draw back on the smoke hood rails in a sliding mode through the smoke hood supporting walls. Therefore, only a small movable trolley body needs to be moved, one person can easily complete the process, the sealing smoke hood is telescopic, the problem that an existing trolley sealing smoke hood is complex in disassembly and adjustment process is solved, rapid deployment and maintenance are facilitated, the operation complexity is greatly reduced, and the yield and economic benefits of a sintering machine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sintering flue gas circulation, and more specifically, to a multi-adaptive sintering flue gas trolley sealing hood and method. Background Art

[0002] During the use of sintering flue gas circulation technology, a sealing hood needs to be arranged above the trolley, which brings the trouble that when the trolley is under maintenance, the trolley hood needs to be disassembled and hoisted for trolley maintenance.

[0003] Specifically, in the prior art, most are fixed hoods, that is, the hoods are fixed on the brackets outside the trolley. The hoods of traditional technologies are immovable. Even if there are movable hoods, due to their large self-weight, they cannot be pushed by a single person. Moreover, there will be a large number of gaps when the movable hood is supported by brackets, which will very likely lead to waste gas leakage, and it is difficult to meet the current ultra-low emission requirements of CO volume or circulation volume emission requirements. In addition, the sealing hood formed by arranging the hood above the bracket with wheels is often heavy and requires the cooperation of multiple employees to push together, which brings great inconvenience to the maintenance work.

[0004] Therefore, there is an urgent need for a multi-adaptive sintering flue gas trolley sealing hood that can solve the problems that the traditional trolley sealing hood cannot be completely sealed, cannot effectively prevent waste gas leakage, and is difficult to push, which can facilitate rapid deployment and maintenance, greatly reduce the operation complexity, reduce the personnel ratio, and improve the output and economic benefits of the sintering machine. Summary of the Invention

[0005] In view of the above problems, the purpose of the present invention is to provide a multi-adaptive sintering flue gas trolley sealing hood and method to solve the problems in the prior art that most are fixed hoods, that is, the hoods are fixed on the brackets outside the trolley. The hoods of traditional technologies are immovable. Even if there are movable hoods, due to their large self-weight, they cannot be pushed by a single person. Moreover, there will be a large number of gaps when the movable hood is supported by brackets, which will very likely lead to waste gas leakage, and it is difficult to meet the current ultra-low emission requirements of CO volume or circulation volume emission requirements. In addition, the sealing hood formed by arranging the hood above the bracket with wheels is often heavy and requires the cooperation of multiple employees to push together, which brings great inconvenience to the maintenance work.

[0006] A multi-adaptive sintering flue gas trolley sealing hood provided by the present invention includes:

[0007] Fixed tracks arranged on both sides of the sintering flue gas circulation trolley and a sealing hood arranged above the sintering flue gas circulation trolley and capable of completely covering the sintering flue gas circulation trolley;

[0008] The sealed smoke hood includes a movable vehicle body fixedly connected in pairs and a telescopic smoke hood respectively arranged on each movable vehicle body; wherein,

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

[0010] The telescopic smoke hood is arranged above the smoke hood track through a smoke hood support wall, and the telescopic smoke hood slides and expands on the smoke hood track through the smoke hood support wall;

[0011] The telescopic smoke hood is connected with a motor, and the motor is used to provide telescopic power for the telescopic smoke hood;

[0012] The motor is wired to a telescopic smoke hood switch, and the motor is remotely connected to a telescopic smoke hood remote control.

[0013] Preferably, adjacent movable vehicle bodies are fixed by metal screws and nuts.

[0014] Preferably, extension fixing pieces are respectively arranged at both ends of the movable vehicle body;

[0015] Adjacent movable vehicle bodies are connected through correspondingly arranged extension fixing pieces, and the metal screws penetrate through the two correspondingly arranged extension fixing pieces;

[0016] The nut is screwed on the metal screw to fix the extension fixing pieces of adjacent movable vehicle bodies.

[0017] Preferably, the telescopic smoke hood includes a fixed smoke hood piece and a preset number of telescopic pieces.

[0018] Preferably, adjacent telescopic pieces are clamped and limited through matching lower bayonets and upper bayonets. In the contracted state, the telescopic pieces are sequentially nested on one side of the fixed smoke hood piece.

[0019] Preferably, the smoke hood support wall is seamlessly fixedly connected to the lower part of each telescopic piece; and,

[0020] The distances between the smoke hood support walls arranged on both sides of each telescopic piece increase sequentially, so that in the contracted state of the telescopic smoke hood, the smoke hood support walls on both sides of the telescopic piece are sequentially sleeved in the accommodation spaces formed by the smoke hood support walls on both sides of the adjacent telescopic piece.

[0021] Preferably, the top of the smoke hood support wall is welded to the telescopic piece;

[0022] Rollers are arranged at the bottom of the smoke hood support wall, and the rollers are slidably connected to the smoke hood track.

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

[0024] The wheels can slide on the fixed track.

[0025] Preferably, the hood track is arranged above the sealed vehicle frame and is vertically fixed to the side wall of the sealed vehicle frame.

[0026] The present invention also provides a multi-adaptive sintering flue gas trolley sealing method, which is characterized in that a multi-adaptive sintering flue gas trolley sealing hood as described above is used to seal the sintering flue gas trolley, including:

[0027] Determine the preset number of movable vehicle bodies according to the size of the sintering flue gas trolley;

[0028] Sequentially slide the preset number of movable vehicle bodies to the side of the flue gas trolley through the fixed track and fix the movable vehicle bodies in pairs;

[0029] Based on the hood track provided on the movable vehicle body and the hood support wall arranged above the hood track, extend the telescopic hood to a position where it can completely cover the sintering flue gas trolley to achieve sintering sealing; and if the sintering flue gas trolley needs to be overhauled, shorten the telescopic hood to avoid the overhaul position of the sintering flue gas trolley.

[0030] As can be seen from the above technical solution, the multi-adaptive sintering flue gas trolley sealing hood and method provided by the present invention perform flue gas sealing through the fixed tracks arranged on both sides of the sintering flue gas circulation trolley and the sealing hood arranged above the sintering flue gas circulation trolley and capable of completely covering the sintering flue gas circulation trolley. The sealing hood includes a movable vehicle body fixedly connected in pairs and a retractable hood respectively arranged on each movable vehicle body. A hood track is arranged on the movable vehicle body. The retractable hood is arranged above the hood track through a hood support wall, and the retractable hood slides and retracts on the hood track through the hood support wall, so that the preset number of movable vehicle bodies can be determined according to the size of the sintering flue gas trolley, and the sealing hood can adapt to sintering flue gas trolleys of various different sizes; when maintenance is required, only a small piece of the movable vehicle body needs to be moved, and a single person can easily complete it. 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 the worker can directly perform maintenance on the sintering flue gas trolley, solving the problem that the circulation ratio of the existing trolley sealing hood cannot be adjusted. And through the design of multi-section connection, the number of sections of the movable vehicle body can be determined according to the total length of the sintering flue gas trolley, which can be applicable to sintering flue gas trolleys of different sizes. Moreover, the hood support wall can improve the sealing performance compared with the bracket, improving its use effect under different emission standard requirements, and solving the problem that the disassembly and adjustment process of the existing trolley sealing hood is complex. By using metal screws and nuts to connect the two movable vehicle bodies, the disassembly and adjustment process of the hood can be made simpler and faster, which is beneficial to rapid deployment and maintenance, greatly reducing the operation complexity, and improving the output and economic benefits of the sintering machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By referring to the following description of the specification in conjunction with the drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the drawings:

[0032] Figure 1 FIG. 9 is a side view of the multi-adaptive sintering flue gas trolley sealing hood according to an embodiment of the present invention;

[0033] Figure 2 FIG. 13 is a front view of the multi-adaptive sintering flue gas trolley sealing hood according to an embodiment of the present invention;

[0034] Figure 3 FIG. 17 is a flowchart of the multi-adaptive sintering flue gas trolley sealing method according to an embodiment of the present invention.

[0035] The reference numerals are: A, sintering flue gas circulation trolley; 1, fixed track; 2, retractable hood; 3, movable vehicle body; 4, sealing frame; 5, hood track; 6, hood support wall; 7, retractable sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In the prior art, most of the fume hoods are fixed type, that is, the fume hood is fixed on the bracket outside the trolley. The fume hood of the traditional technology is immovable. Even if there is a movable fume hood, there will be a large number of gaps when using the bracket to support the fume hood body, which will most likely cause waste gas leakage, and it is difficult to meet the current ultra-low emission requirements of CO volume or the emission requirements of the circulation volume. Moreover, the sealed fume hood formed by setting the fume hood above the bracket with wheels is relatively heavy due to its own weight, and often requires the cooperation of multiple employees to push it together, which brings great inconvenience to the maintenance work.

[0037] In view of the above problems, the present invention provides a multi-adaptive sintering flue gas trolley sealed fume hood and method. The following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0038] In order to illustrate the multi-adaptive sintering flue gas trolley sealed fume hood and method provided by the present invention, Figures 1 - 3 Exemplary markings are made for the embodiments of the present invention.

[0039] The following description of the exemplary embodiments is actually only illustrative and in no way limits the present invention and its application or use. Technologies and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies and devices should be regarded as part of the specification.

[0040] As Figures 1 - 2 As commonly shown, the embodiment of the present invention provides a multi-adaptive sintering flue gas trolley sealed fume hood, which includes fixed tracks 1 arranged on both sides of the sintering flue gas circulation trolley A and a sealed fume hood arranged above the sintering flue gas circulation trolley and capable of completely covering the sintering flue gas circulation trolley A. The sealed fume hood includes a movable vehicle body 3 fixedly connected in pairs and retractable fume hoods 2 respectively arranged on each movable vehicle body 3; wherein, a fume hood track 5 is arranged on the movable vehicle body 3, the retractable fume hood 2 is arranged above the fume hood track through a fume hood support wall 6, and the retractable fume hood 2 slides and expands on the fume hood track through the fume hood support wall 6.

[0041] There is no specific limitation on the way of fixing the movable vehicle bodies to each other. In a specific embodiment, two adjacent movable vehicle bodies are fixed by metal screws and nuts, or can also be connected by flanges, as long as the two movable vehicle bodies can be fixed. If metal screws and nuts are used, extension fixing pieces are respectively arranged at both ends of the movable vehicle body. Two adjacent movable vehicle bodies are connected through the correspondingly arranged extension fixing pieces, and the metal screw penetrates through the two correspondingly arranged extension fixing pieces, and the nut is screwed on the metal screw to fix the extension fixing pieces of the two adjacent movable vehicle bodies. For example, when facing the adjustable sintering flue gas trolley sealing flue hood, the extension fixing pieces of the left movable vehicle body and the right movable vehicle body are correspondingly arranged, and the metal screw penetrates through the two correspondingly arranged extension fixing pieces, and the nut is screwed on the metal screw to fix the extension fixing pieces of the two movable vehicle bodies. The specific position of the extension fixing piece is not specifically limited, as long as it can satisfy the requirement of linking the two movable vehicle bodies. In a more specific embodiment, the extension fixing piece can be arranged on the two outer sides (the side away from the middle sintering flue gas circulation trolley) at the end of the movable vehicle body, that is, an extension fixing piece extends outward on the outer side of the end, so as to facilitate the workers to fix and install on the outer side. Thus, the models of the metal screw and the screw cap are not specifically limited, and can be specifically determined according to the volume of the movable vehicle body and the size of the fixing holes opened in the extension fixing piece, as long as it can satisfy the requirement of fixing the extension fixing pieces of the two adjacent movable vehicle bodies through the metal screw and the nut.

[0042] There is also no limitation on the specific telescopic manner of the telescopic flue hood. In this embodiment, the telescopic flue hood 2 includes a fixed flue hood piece and a preset number of telescopic pieces 7. The styles and forms of the fixed flue hood piece and the telescopic pieces are the same. In other words, the fixed flue hood piece is the first telescopic piece fixed at the end, which is fixed and immovable, and a limiting plate is arranged above the fixed flue hood piece. The limiting plate can be any metal plate that can block the telescopic piece adjacent to the fixed flue hood piece, so as to prevent the telescopic piece adjacent to the fixed flue hood piece from sliding excessively and falling off when the telescopic piece is in the contracted state. Adjacent telescopic pieces are clamped and limited through a matching lower bayonet and upper bayonet. In the contracted state, the telescopic pieces are sequentially nested on one side of the fixed flue hood piece. For example, each telescopic piece can be arranged to gradually rise from left to right (the end close to the fixed flue hood piece is the left, and the end away from the fixed flue hood piece is the right). More specifically, a lower bayonet is arranged on the left side of the telescopic piece, and an upper bayonet is arranged on the right side of the telescopic piece. And when the telescopic flue hood is extended to the maximum covering area, the lower bayonet of each telescopic piece is clamped with the upper bayonet of the previously arranged telescopic piece to prevent the telescopic piece from falling off during the stretching process.

[0043] The hood support wall is seamlessly and fixedly connected below each retractable sheet 7; moreover, the distance between the hood support walls on both sides of each retractable sheet gradually increases, so that in the retracted state of the retractable hood, the hood support walls on both sides of the retractable sheet are sequentially sleeved in the accommodation space formed by the hood support walls on both sides of the adjacent retractable sheet, that is, the distance between the hood support walls on both sides of each retractable sheet gradually increases from left to right (from the side close to the fixed hood sheet to the side away from the fixed hood sheet), so that in the shrunk state of the retractable hood, the hood support walls on both sides of the left retractable sheet are sleeved in the accommodation space formed by the hood support walls on both sides of the right retractable sheet. The top of the hood support wall is welded to the retractable sheet, and rollers are provided at the bottom of the hood support wall, and the rollers are slidably connected to the hood track, so as to facilitate adjusting the overall length of the sealed hood by telescoping and improve the tightness of the entire retractable hood. The hood support wall can form a sealed space above and on both sides of the sintering flue gas circulation trolley. Moreover, the movable vehicle body includes a sealed vehicle frame 4 and wheels provided below the sealed vehicle frame 4, and the wheels are slidably connected to the fixed track, solving the problem that the traditional trolley sealed hood cannot be completely sealed. By adopting the design of an arc-shaped retractable and detachable hood, it is possible to effectively prevent waste gas leakage during the movement or disassembly of the trolley, thereby reducing environmental pollution, achieving the requirement of the flue gas circulation volume index of more than 25%, meeting the environmental protection requirements, and reducing the environmental protection pressure on enterprises.

[0044] In this embodiment, the hood track is arranged above the sealed vehicle frame and is vertically fixed to the side wall of the sealed vehicle frame to increase the width of the hood track and improve the stability of the entire device.

[0045] In addition, in this embodiment, the retractable hood is connected to a motor (not shown in the figure), and the motor is used to provide telescopic power for the retractable hood. The motor is wired to the retractable hood switch and remotely connected to the retractable hood remote control, so that the staff can control the telescoping of the retractable hood closely or remotely through the retractable hood switch and the retractable hood remote control, improving the work efficiency of the workers and reducing the work intensity. The model of the motor is not specifically limited here, as long as it can meet the requirement of pulling the outermost retractable sheet through electric energy and then controlling the length of the entire retractable hood. The models of the retractable hood switch and the retractable hood remote control are also not specifically limited, as long as they can control the motor switch. When the motor is turned on, the outermost retractable sheet is pulled forward or backward through the traction device connected to the motor, and then the length of the entire retractable hood is controlled. When the motor is turned off, it stops. The traction device can be any common component with a traction function and is not limited here, as long as it can meet the traction function. Through the settings of the motor, the switch and the traction device, the intelligence of the entire sealed hood is greatly improved, thereby reducing the burden on workers and improving the work efficiency.

[0046] As described above, the multi-adaptive sintering flue gas trolley sealing hood provided by the present invention seals the flue gas through the fixed tracks arranged on both sides of the sintering flue gas circulation trolley and the sealing hood arranged above the sintering flue gas circulation trolley and capable of completely covering the sintering flue gas circulation trolley. The sealing hood includes a movable vehicle body fixedly connected in pairs and retractable hoods respectively arranged on each movable vehicle body. A hood track is arranged on the movable vehicle body, and the retractable hood is arranged above the hood track through a hood support wall, and the retractable hood slides and expands on the hood track through the hood support wall. Thus, the preset number of movable vehicle bodies can be determined according to the size of the sintering flue gas trolley. When maintenance is required, only a small piece of the movable vehicle body needs to be moved, and a single person can easily complete it. Moreover, the sealing hood is retractable and can determine and adjust the overall length of the sealing hood according to the sintering flue gas trolley. When maintenance is required, the length of the retractable hood can also be directly reduced, and the worker can directly perform maintenance on the sintering flue gas trolley, solving the problem that the circulation ratio of the existing trolley sealing hood cannot be adjusted. And through the design of multi-section connection, the number of sections of the movable vehicle body can be determined according to the total length of the sintering flue gas trolley, and the retractable sealing hood can also be applicable to sintering flue gas trolleys of different sizes. The hood support wall can improve the sealing performance compared with the bracket, ensuring its use effect under different emission standard requirements, solving the problem that the disassembly and adjustment process of the existing trolley sealing hood is complicated, and making the disassembly and adjustment process of the hood simpler and faster, thus facilitating rapid deployment and maintenance, greatly reducing the operation complexity, and improving the output and economic benefits of the sintering machine.

[0047] As Figure 3 shown, the present invention also provides a multi-adaptive sintering flue gas trolley sealing method, which uses the multi-adaptive sintering flue gas trolley sealing hood as described above to seal the sintering flue gas trolley, including:

[0048] S1: Determine the preset number of movable vehicle bodies according to the size of the sintering flue gas trolley;

[0049] S2: Slide the preset number of movable vehicle bodies to the side of the flue gas trolley through the fixed tracks in sequence, and fix the movable vehicle bodies in pairs;

[0050] S3: Based on the hood track arranged on the movable vehicle body and the hood support wall arranged above the hood track, extend the retractable hood to a position capable of completely covering the sintering flue gas trolley to achieve sintering sealing; and if the sintering flue gas trolley needs to be maintained, shorten the retractable hood to avoid the maintenance position of the sintering flue gas trolley.

[0051] For a more specific implementation manner of the above multi-adaptive sintering flue gas trolley sealing method, reference can be made to the specific embodiments of the above multi-adaptive sintering flue gas trolley sealing hood, and details are not described herein again.

[0052] The multi-adaptive sintering flue gas trolley sealing hood and method proposed according to the present invention have been described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can still be made to the above-mentioned multi-adaptive sintering flue gas trolley sealing hood and method without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the appended claims.

Claims

1. A multi-adaptable sintering fume trolley sealed fume hood, characterized in that: include: Fixed rails arranged on both sides of the sintering fume circulation trolley and a sealed fume hood arranged above the sintering fume circulation trolley and capable of fully covering the sintering fume circulation trolley; The sealed smoke hood comprises movable bodies fixedly connected in pairs and retractable smoke hoods respectively arranged on each movable body; wherein, A smoke hood track is arranged on the movable vehicle body; The retractable smoke hood is arranged above the smoke hood track through a smoke hood support wall, and the retractable smoke hood is slidable and retractable on the smoke hood track through the smoke hood support wall; The retractable smoke hood is connected to a motor, and the motor is used to provide retractable power for the retractable smoke hood; The motor is wired to the retractable smoke hood switch, and the motor is remotely connected to the retractable smoke hood remote control.

2. The multi-adaptable sintering fume trolley sealed fume hood according to claim 1, characterized in that: Two adjacent movable bodies are fixed by metal screws and nuts.

3. The multi-adaptable sintering fume trolley sealed fume hood according to claim 2, characterized in that: Outer extension fixing plates are respectively provided at both ends of the movable vehicle body; Two adjacent movable vehicle bodies are connected via correspondingly arranged external fixing plates, and the metal screws penetrate through the two correspondingly arranged external fixing plates; The nut is screwed onto the metal screw to fix the outer extension fixing plates of two adjacent movable vehicle bodies.

4. The multi-adaptable sintering fume trolley sealed fume hood according to claim 3, characterized in that: The retractable smoke hood comprises a fixed smoke hood plate and a preset number of retractable plates.

5. The multi-adaptable sintering fume trolley sealed fume hood according to claim 4, characterized in that: Adjacent retractable sheets are clamped and limited by matching lower and upper clamps. In the retracted state, the retractable sheets are sequentially overlapped on the outside of the fixed smoke cover sheet.

6. The multi-adaptable sintering fume trolley sealed fume hood according to claim 5, characterized in that: The smoke hood support wall is seamlessly fixed to the bottom of each retractable sheet; and, The distance between the smoke hood support walls arranged on both sides of each retractable piece gradually increases, so that when the retractable smoke hood is in a retracted state, the smoke hood support walls on both sides of the retractable piece are successively sleeved in the accommodating space formed by the smoke hood support walls on both sides of the adjacent retractable piece.

7. The multi-adaptable sintering fume trolley sealed fume hood according to claim 6, characterized in that: The top of the smoke hood supporting wall is welded to the retractable sheet; A roller is arranged at the bottom of the smoke hood supporting wall, and the roller is slidably connected to the smoke hood track.

8. The multi-adaptable sintering fume trolley sealed fume hood according to claim 7, characterized in that: The movable vehicle body comprises a sealed frame and wheels arranged below the sealed frame; The wheels are slidable on the fixed rails.

9. The multi-adaptable sintering fume trolley sealed fume hood according to claim 8, characterized in that: The smoke hood track is arranged above the sealing frame and is vertically fixed to the side wall of the sealing frame.

10. A multi-adaptive sintering fume trolley sealing method, characterized in that: The multi-adaptive sintering fume trolley sealing hood as claimed in any one of claims 1 to 9 is used to seal the sintering fume trolley, comprising: Determine the preset number of movable carriages according to the size of the sintering fume trolley; Slide a preset number of movable bodies sequentially through fixed tracks to the side of the smoke trolley, and fix the movable bodies in pairs; Based on the fume hood track provided on the movable vehicle body and the fume hood support wall provided above the fume hood track, the retractable fume hood is extended to a position capable of fully covering the sintering fume trolley to achieve sintering sealing; and, if the sintering fume trolley needs to be overhauled, the retractable fume hood is shortened to avoid the overhaul position of the sintering fume trolley.

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