Gate valve of furnace bottom ash conveying machine

Abstract

The utility model discloses a gate valve of a furnace bottom ash conveying machine, which comprises a first plug board, a second plug board, a first plug board channel and a second plug board channel. The first end of the first insertion plate channel and the first end of the second insertion plate channel are fixedly installed on the side wall of the ash bucket and communicated with the ash bucket, the second end of the first insertion plate channel and the second end of the second insertion plate channel are provided with a first door plate and a second door plate respectively, and the first insertion plate channel and the second insertion plate channel are oppositely arranged on the side wall of the ash bucket. A first track is arranged in the first insertion plate channel along the length direction, so that the first insertion plate can be pushed into the ash bucket along the first track; and a second track is arranged in the second insertion plate channel along the length direction, so that the second insertion plate can be pushed into the ash bucket along the second track. According to the utility model, the problem that a gate valve of a conventional furnace bottom ash conveyor is jammed is effectively solved, and ash and the furnace bottom ash conveyor can be effectively isolated.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace bottom ash conveying machines, in particular to a plug-in valve for furnace bottom ash conveying machines. Background Art

[0002] The garbage in the waste incineration power plant enters the incinerator for combustion. The tiny residues produced during the combustion process enter the ash hopper through the gaps between the grate plates, and then enter the furnace bottom ash conveyor and are transported to the slag pool. In actual operation, during the fault maintenance of the furnace bottom ash conveyor, the ash and slag in the ash hopper need to be isolated to avoid affecting the maintenance of the furnace bottom ash conveyor. In conventional design, a manual gate valve with handwheel operation is arranged at the bottom of the ash hopper. During the normal operation of the furnace bottom ash conveyor, the gate valve is in an open state, allowing the ash and slag to fall smoothly into the furnace bottom ash conveyor through the ash hopper. During the maintenance of the furnace bottom ash conveyor, the manual gate valve needs to be closed to isolate the ash and slag in the ash hopper, and the furnace bottom ash conveyor is maintained.

[0003] In actual use, it was found that before the furnace bottom ash conveyor was overhauled, when the manual gate valve was closed, the manual gate valve would sometimes get stuck and fail to play an isolating role, causing inconvenience to the maintenance of the furnace bottom ash conveyor. Utility Model Content

[0004] The utility model aims to solve the problem that a plug-in valve of a furnace bottom ash conveyor is easy to get stuck, and provides a plug-in valve of a furnace bottom ash conveyor.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gate valve of a furnace bottom ash conveyor is used to selectively isolate ash in an ash hopper, comprising a first gate, a second gate, a first gate channel and a second gate channel, the first gate channel and the second gate channel comprising side walls surrounded on four sides, the first end of the first gate channel and the first end of the second gate channel are fixedly mounted on the side wall of the ash hopper and are communicated with the ash hopper, the first gate channel and the second gate channel are arranged opposite to each other on the side wall of the ash hopper, a first door panel is arranged at the second end of the first gate channel, and a second door panel is arranged at the second end of the second gate channel, the first door panel and the second door panel can be opened or closed, a first track is arranged in the first gate channel along the length direction so that the first gate can be pushed into the ash hopper along the first track; a second track is arranged in the second gate channel along the length direction so that the second gate can be pushed into the ash hopper along the second track.

[0007] In some embodiments, the first track includes a first sub-track and a second sub-track which are relatively arranged on the side wall of the first plug-in plate channel, and the first sub-track and the second sub-track are respectively provided with a first groove and a second groove, and both ends of the first plug-in plate can be respectively inserted into the first groove and the second groove, and enter the interior of the ash hopper along the length direction of the first groove and the second groove; the second track includes a third sub-track and a fourth sub-track which are relatively arranged on the side wall of the second plug-in plate channel, and the third sub-track and the fourth sub-track are respectively provided with a third groove and a fourth groove, and both ends of the second plug-in plate can be respectively inserted into the third groove and the fourth groove, and enter the interior of the ash hopper along the length direction of the third groove and the fourth groove.

[0008] In some embodiments, the depths of the first groove, the second groove, the third groove and the fourth groove are all 2-4 cm.

[0009] In some embodiments, the operating side edge of the first plug board and the operating side edge of the second plug board are both provided with hand holes.

[0010] In some embodiments, two hand holes are respectively provided on the operating side edge of the first plug board and the operating side edge of the second plug board.

[0011] In some embodiments, pins are respectively installed at the second end of the first plugging plate channel and the second end of the second plugging plate channel to control the opening and closing of the first door panel and the second door panel.

[0012] The utility model has the following beneficial effects:

[0013] The utility model arranges the first plug-in plate channel and the second plug-in plate channel relatively on the side wall of the ash hopper, divides the original whole plug-in plate into two, and the two plug-in plates can be directly put in from the plug-in plate channels on both sides and pushed into the interior of the ash hopper along the track. During use, if the track is blocked, it can be conveniently unblocked. Before the furnace bottom ash conveyor is overhauled, the ash and slag can be smoothly isolated from the furnace bottom ash conveyor, thereby improving the overhaul efficiency of the furnace bottom ash conveyor, and effectively solving the problem of the conventional furnace bottom ash conveyor plug-in plate valve being stuck. During the overhaul of the furnace bottom ash conveyor, the ash and slag can be effectively isolated from the furnace bottom ash conveyor, so that the furnace bottom ash conveyor can be overhauled normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of a gate valve of a furnace bottom ash conveyor in the prior art;

[0015] Figure 2 It is a side view of a gate valve of a furnace bottom ash conveyor in the prior art;

[0016] Figure 3 It is a bottom view of a gate valve of a furnace bottom ash conveyor in the prior art;

[0017] Figure 4 It is a structural schematic diagram of the furnace bottom ash conveyor in the embodiment of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the furnace bottom ash conveyor from another angle in the embodiment of the utility model;

[0019] Figure 6 This is a schematic diagram of the first plugboard in the embodiment of the utility model;

[0020] 1-manual wheel, 2-rotating screw, 3-whole plug plate, 4-locking pin, 51-first side wall, 52-first door panel, 6-first plug plate, 71-second side wall, 72-second door panel, 8-second plug plate, 9-first sub-track, 10-second sub-track, 11-hand hole. DETAILED DESCRIPTION

[0021] The following is a detailed description of the implementation of the utility model. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing as well as for coupling or communication.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] refer to Figure 1-Figure 3In the prior art, the manual valve includes a manual wheel 1, a rotating screw 2 and a whole plug plate 3. During the experiment, the manual wheel 1 rotates on the rotating screw 2 to push the whole plug plate 3 into the ash hopper and into the isolation area of ​​the ash hopper. In actual operation, the following problems may be encountered: the rotating screw may rust, making it impossible to operate the manual valve; when the plug plate valve is pushed into the isolation area of ​​the ash hopper, the track may be blocked by leachate or ash residue, causing the manual valve to be stuck and unable to be isolated.

[0026] refer to Figure 4-Figure 5 , an embodiment of the utility model provides a gate valve of a furnace bottom ash conveyor, which is used to selectively isolate ash in an ash hopper, including a first gate 6, a second gate 8, a first gate channel and a second gate channel, the first gate channel including a first side wall 51 surrounded by four sides, the second gate channel including a second side wall 71 surrounded by four sides, the first end of the first gate channel and the first end of the second gate channel are fixedly installed on the side wall of the ash hopper and are connected to the ash hopper, the first gate channel and the second gate channel are arranged opposite to each other on the side wall of the ash hopper, the first door panel 52 is arranged at the second end of the first gate channel, and the second door panel 72 is arranged at the second end of the second gate channel, the first door panel 52 and the second door panel 72 can be opened or closed, a first track is arranged in the first gate channel along the length direction, so that the first gate 6 can be pushed into the ash hopper along the first track; a second track is arranged in the second gate channel along the length direction, so that the second gate 8 can be pushed into the ash hopper along the second track.

[0027] The existing gate valve pushes the gate into the ash hopper by rotating the manual wheel on the screw rod. In actual use, the rotating screw rod will rust, affecting the rotation of the manual wheel. During the long-term operation of the waste incineration power plant, the leachate and ash in the garbage enter the ash hopper, which may block the track of the gate valve and affect the entry of the gate. The combined effect of the above reasons makes the operation of isolating the ash from the furnace bottom ash conveyor with the gate valve fail before maintenance. The above embodiment cancels the manual valve and the rotating screw of the gate valve of the furnace bottom ash conveyor in the prior art, and sets two gate channels at the position of the original manual gate valve, which saves space and provides a larger maintenance space for the furnace bottom ash conveyor platform; by designing a sealed box that can be opened on both sides (referring to the gate channel when the door panel is closed), the original whole gate is divided into two, one end of each gate channel is connected to the ash hopper, and the other end can be opened through the door panel, and the two gates can be directly inserted from the two opened sides. During use, if the track is blocked, it can be conveniently unblocked. Before the furnace bottom ash conveyor is repaired, the ash and the furnace bottom ash conveyor can be smoothly isolated, thereby improving the maintenance efficiency of the furnace bottom ash conveyor and effectively solving the problem of the conventional furnace bottom ash conveyor gate valve being stuck.

[0028] The door panel at the open end of the plug-in channel in the embodiment of the utility model is usually locked with a lock. Before the furnace bottom ash conveyor is inspected and isolated, the door panel of the plug-in channel is opened and the isolation plate is manually placed into the track. A track with a depth of 3 cm is set inside each of the two plug-in channels. This track is used to insert the plug-in board. Two hand holes are set on the edge of the plug-in board to facilitate manual insertion or removal of the plug-in board. The specific implementation method is as follows:

[0029] refer to Figure 4-Figure 5 In this embodiment, the first track includes a first sub-track 9 and a second sub-track 10 which are relatively arranged on the side wall of the first plug-in plate channel, and the first sub-track 9 and the second sub-track 10 are respectively provided with a first groove and a second groove, and the two ends of the first plug-in plate 6 can be respectively inserted into the first groove and the second groove, and enter the interior of the ash hopper along the length direction of the first groove and the second groove. Similarly, the second track includes a third sub-track and a fourth sub-track which are relatively arranged on the side wall of the second plug-in plate channel, and the third sub-track and the fourth sub-track are respectively provided with a third groove and a fourth groove, and the two ends of the second plug-in plate 8 can be respectively inserted into the third groove and the fourth groove, and enter the interior of the ash hopper along the length direction of the third groove and the fourth groove. In some embodiments, the depth of the first groove, the second groove, the third groove and the fourth groove are all 2-4cm, which is convenient for the plug-in plate to be directly fed in. In this embodiment, the depth of the first groove, the second groove, the third groove and the fourth groove are all 3cm. Because the plug-in plate is fed in from both sides through the plug-in plate channel, in order to ensure the isolation effect of the plug-in plate, there will be a small amount of stacking in the middle of the two plug-in plates. The above spatial arrangement better ensures the implementation of the above measures. In this embodiment, a pin, ie, a locking pin 4 , is installed at the second end of the first plugging plate passage and the second end of the second plugging plate passage respectively to control the opening and closing of the first door panel 52 and the second door panel 72 .

[0030] In some embodiments, the operating side edge of the first plug board and the operating side edge of the second plug board are both provided with hand holes; Figure 6 In this embodiment, two hand holes 11 are respectively provided on the operating side edge of the first plug board 6 and the operating side edge of the second plug board 8 .

[0031] Before overhauling the furnace bottom ash conveyor, manually open the locks on both sides, and manually insert the left and right plates directly into the internal track to isolate the ash from the furnace bottom ash conveyor. Insert the plug-in plates into the isolation space from both sides of the sealing box, which is equivalent to dividing the original plug-in plate into two and inserting them from both sides, which can alleviate the problem of track jamming and make it easier to operate. Because it is a manual operation, if the leachate or ash blocks the track by 3cm during the operation, you can use a sharp iron rod to clear the track.

[0032] The non-stuck gate valve of the furnace bottom ash conveyor in this embodiment eliminates the manual gate valve and the rotating screw, and the furnace bottom ash conveyor platform has a larger maintenance space. Before the furnace bottom ash conveyor is repaired, the ash and the furnace bottom ash conveyor need to be isolated and the following operations need to be performed:

[0033] A. Open the locking pin 4 on the second end of the first plugboard channel and the second end of the second plugboard channel;

[0034] B. Open the sealed boxes on both sides (i.e., open the first door panel 52 and the second door panel 72);

[0035] C. Place the first plugboard 6 and the second plugboard 8 on the left and right sides into the first track and the second track respectively through the hand hole 11 on the side edge of the operation;

[0036] D. Close the first door panel 52 and the second door panel 72, and lock the locking pins 4 at both ends.

[0037] Note: If the first and second tracks are blocked by leachate or ash during insertion, open the door panels on both sides, use a sharp stick to clear the tracks before inserting the plug-in board. This makes the operation very easy.

[0038] The door panels on both sides of the plug channel in this embodiment can be opened. During normal operation, the door panels on both sides are locked with locks, and the locks need to be opened during the insertion of the plug. The isolation plug in the prior art is a whole plate, and the plug in the new design is divided into two pieces, and the two plates are inserted from the plug channels on both sides. During use, if the track is stuck by leachate or ash, a sharp stick can be used to clear it, and then the plug can be inserted. Hand holes are set on the edges of the two plugs for easy manual insertion or extraction. The biggest advantage of the plug valve of the furnace bottom ash conveyor in the embodiment of the utility model is that it is easy to operate and can effectively isolate the ash from the furnace bottom ash conveyor. The original conventional design, once stuck, is helpless and cannot be isolated. Because the sealing box of this design can be opened on both sides, once the internal track is blocked, the operating space is large, and it can be used normally after clearing, and the isolation plate is inserted from both sides, which is more convenient to operate.

[0039] The above content is a further detailed description of the utility model in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the utility model. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope of protection of the patent application.

Claims

1. A gate valve for a furnace bottom ash conveyor, used to selectively isolate ash in an ash hopper, characterized in that: The hopper is connected to the second hopper by a first gate, and the hopper is connected to the first gate by a second gate. The hopper is connected to the first gate and the second gate are connected to the second hopper by a second gate. The hopper is connected to the first gate and the second gate are connected to the second hopper by a second gate. The hopper is connected to the first gate and the second gate are connected to the second hopper by a second gate. The hopper is connected to the first gate and the second gate are connected to the second hopper by a second gate.

2. The gate valve of the furnace bottom ash conveyor according to claim 1, characterized in that: The first track includes a first sub-track and a second sub-track which are relatively arranged on the side wall of the first plug-in plate channel, and the first sub-track and the second sub-track are respectively provided with a first groove and a second groove, and both ends of the first plug-in plate can be respectively inserted into the first groove and the second groove, and enter the interior of the ash hopper along the length direction of the first groove and the second groove; the second track includes a third sub-track and a fourth sub-track which are relatively arranged on the side wall of the second plug-in plate channel, and the third sub-track and the fourth sub-track are respectively provided with a third groove and a fourth groove, and both ends of the second plug-in plate can be respectively inserted into the third groove and the fourth groove, and enter the interior of the ash hopper along the length direction of the third groove and the fourth groove.

3. The gate valve of the furnace bottom ash conveyor as claimed in claim 2, characterized in that: The depths of the first groove, the second groove, the third groove and the fourth groove are all 2-4 cm.

4. The gate valve of the furnace bottom ash conveyor according to claim 1, characterized in that: The operating side edge of the first plug board and the operating side edge of the second plug board are both provided with hand holes.

5. The gate valve of the furnace bottom ash conveyor according to claim 1, characterized in that: Two hand holes are respectively arranged on the operating side edge of the first plug board and the operating side edge of the second plug board.

6. The gate valve of the furnace bottom ash conveyor according to claim 1, characterized in that: Pins are respectively installed at the second end of the first plugging plate channel and the second end of the second plugging plate channel to control the opening and closing of the first door panel and the second door panel.

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