Isolation gate valve, ash leakage hopper, ash conveying device and garbage power plant incinerator

Abstract

The utility model relates to an isolation gate valve, an ash leakage hopper, an ash conveying device and a garbage power plant incinerator, the isolation gate valve comprises a valve body, and further comprises rails arranged on the left side wall and the right side wall of the valve body, and a first gap is formed between the tail end of each rail and the rear side wall of the valve body; and the inserting plate is detachably arranged on the track, and after the inserting plate is inserted into the valve body along the track, the isolating inserting plate valve is in an isolating closed state. According to the isolation gate valve, the ash leakage hopper comprising the isolation gate valve, the ash conveying device and the incinerator of the garbage power plant, the effectiveness can be improved, the isolation effect is good, and the inserting plate is not jammed when being inserted and taken out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ash conveying of waste incineration plants, in particular to an isolation plug valve, an ash leakage hopper, an ash conveying device and a waste incineration plant. BACKGROUND

[0002] At present, the isolation plug valve of the ash conveying machine at the bottom of the waste incineration plant and the ash leakage hopper is a conventional plug valve. The valve is generally in an open state, and is closed only when the ash conveying machine at the bottom needs to be overhauled.

[0003] The following problems exist during use: Since the plug of the plug valve is integrated with the valve body, the plug cannot be detached. The plug is often in a humid environment due to the high water temperature in the ash conveying machine at the bottom. In addition, ash always falls in the ash leakage hopper at the bottom. Therefore, under the condition of ash and water vapor, the track inside the plug valve is easily filled with coke formed by ash and water vapor. Since the operation frequency of the valve is very low, the coke is hardened on the track. In addition, the plug and the track are prone to rust and jam in the humid environment for a long time.

[0004] When the plug valve needs to be closed, the plug cannot be inserted into the track due to rust and blockage of the coke, causing the plug valve to be unable to be closed. The ash conveying machine at the bottom cannot be isolated from the ash leakage hopper, resulting in the need to stop the operation of the primary air fan during the overhaul of the ash conveying machine at the bottom. Otherwise, the high-temperature primary air will be directly sprayed from the ash conveying machine at the bottom through the ash hopper, causing personnel to be scalded. However, stopping the primary air fan will cause the waste in the incinerator to be unable to dry, making it difficult to burn the waste. In addition, since the ash leakage hopper and the ash conveying machine at the bottom are not reliably isolated, when the incinerator is under positive pressure, positive pressure flue gas may be sprayed from the ash conveying machine at the bottom through the ash hopper, causing personnel to be scalded, which is not conducive to the safety of the maintenance personnel. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the problems in the prior art, the present application provides an isolation plug valve, an ash leakage hopper, an ash conveying device and a waste incineration plant, which aims to completely separate the plug of the isolation plug valve from the valve body during normal operation, avoiding the rusting and jamming of the conventional plug valve in the high-temperature and high-humidity environment in the valve body. In addition, the problem of jamming of the conventional plug during closing is avoided, and the reliability of the isolation plug valve, the ash leakage hopper, the ash conveying device and the incinerator is improved.

[0006] Specifically, the present application provides an isolation plug valve, comprising a valve body, further comprising:

[0007] a track provided on the left side wall and the right side wall of the valve body, and a first gap between the end of the track and the rear side wall of the valve body; and

[0008] A plug plate is detachably arranged on the track, and the plug plate makes the isolation plug valve in an isolation closed state after being inserted into the valve body along the track.

[0009] Further, the application further comprises:

[0010] A sealing box is arranged on the front side wall of the valve body to seal the valve body after the plug plate is inserted into the valve body.

[0011] Further, the sealing box comprises:

[0012] A box body is arranged on the front side wall of the valve body;

[0013] A cover plate is arranged on the box body to cover the box body; and

[0014] A lock catch is arranged on the box body to lock the cover plate.

[0015] Further, the cover plate is rotatably arranged on the lower edge of the opening of the box body, and the lock catch is arranged on the upper edge of the opening of the box body; when the cover plate covers the opening of the box body, the lock catch locks the cover plate.

[0016] Further, a sealing member is arranged on the inner surface of the cover plate;

[0017] When the cover plate covers the opening of the box body, the sealing member seals the opening of the box body.

[0018] Further, the application further comprises:

[0019] A dust blocking plate is arranged on the valve body and above the track in a downward inclination;

[0020] The projection width of the dust blocking plate is greater than the width of the track.

[0021] Further, the angle between the dust blocking plate and the horizontal plane is 45°.

[0022] In addition, the application further provides a dust leakage hopper, comprising:

[0023] A hopper body; and

[0024] According to the above-mentioned isolation plug valve, the isolation plug valve is arranged below the hopper body.

[0025] In addition, the application further provides a dust conveying device, comprising:

[0026] According to the above-mentioned dust leakage hopper; and

[0027] A furnace bottom dust conveying machine is arranged below the dust leakage hopper.

[0028] In addition, the application further provides a waste incineration plant incinerator comprising the ash conveying device.

[0029] Compared with the prior art, the application has the following beneficial effects:

[0030] The isolation plug-in valve, the ash leakage hopper, the ash conveying device and the waste incineration plant incinerator of the application ensure the effectiveness of the isolation plug-in valve, the ash leakage hopper, the ash conveying device and the waste incineration plant incinerator, so that the plug-in valve can still be normally opened and closed after long-term use, the ash leakage hopper can be completely isolated from the bottom ash conveying machine when the bottom ash conveying machine needs to be overhauled, and the primary air fan for conveying dry air for the ash hopper does not need to be stopped, thereby ensuring the work safety of the overhaul personnel and ensuring that the garbage can still be fully dried during the overhauling of the bottom ash conveying machine, avoiding the use of natural gas due to the deterioration of the combustion condition of the garbage incinerator, and reducing the production cost.

[0031] The plug-in valve and the valve body of the application can be completely separated, the plug-in valve is taken out of the valve body when the plug-in valve does not need to be closed, the sealing box is pressed tightly, the plug-in valve is stored separately after being taken out, the sealing box is opened when the plug-in valve needs to be closed, and the plug-in valve is directly inserted into the valve body, if there are more ash and coke in the valve body, the inside of the valve body can be cleaned by the overhaul personnel due to the large opening space of the sealing box, so that the plug-in valve can be smoothly inserted, thereby isolating the ash leakage hopper from the bottom ash conveying machine, ensuring the safety of the overhaul personnel, and ensuring the drying of the garbage, so that the garbage incinerator does not need to use natural gas to maintain the normal combustion condition. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained on the basis of these drawings without creative labor.

[0033] The structures, proportions, sizes, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to enable those skilled in the art to understand and read, and are not used to limit the implementation conditions of the application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the application, should still fall within the scope of the technical content disclosed by the application.

[0034] Figure 1 is a schematic diagram of the overall structure of the isolation plug-in valve in the embodiments of the application;

[0035] Figure 2is a right view of the isolation plug-in valve in the embodiment of the application;

[0036] Figure 3 is a top view of the isolation plug-in valve in the embodiment of the application;

[0037] Figure 4 is a front view of the isolation plug-in valve in the embodiment of the application. DETAILED DESCRIPTION

[0038] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application.

[0039] In the description of the present application, it should be understood that the terms such as indicated orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices, elements, modules, systems, platforms or devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The following description of the present application is only for the purpose of understanding as a description of individual embodiments of the technical scheme of the present application, and other embodiments are not embodied in the following description, but it does not mean that the present application excludes these other embodiments, and the technical scheme of the present application is not limited to the specific embodiments described below, and the protection scope of the present application is not limited to only the specific embodiments described below. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0040] It should be noted that if the terms "first", "second" and the like appear in the description, claims and above-mentioned drawings of the present application, the description is only for distinguishing similar objects, and does not have to be used to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a system, product or device including a series of units or modules or components or components does not have to be limited to those units or modules or components clearly listed, but can include other components not clearly listed or inherent to these systems, products or devices.

[0041] The technical scheme of the present application will be further illustrated below by specific embodiments in combination with the drawings.

[0042] In some embodiments, as shown in Figures 1-4 The isolation plug-in valve 1 provided by the present application comprises a valve body 11, and further comprises:

[0043] A track 12 is arranged on the left side wall 111 and the right side wall 112 of the valve body 11, and the end 121 of the track 12 has a first gap 13 with the rear side wall 113 of the valve body 11.

[0044] A plug plate 14 is detachably arranged on the track 12, and the plug plate 14 is inserted into the valve body 11 along the track 12, so that the isolation plug plate valve 1 is in an isolated closed state.

[0045] Specifically, the valve body 11 is internally provided with a track 12, the length of the track 12 is shorter than the length of the valve body 11, and the track 12 is only arranged at the middle part of the valve body 11 and is not connected to the front and rear of the valve body 11. The purpose of this is to facilitate the removal of the caked ash and coke on the track 12. When the plug plate 14 is inserted into the valve body 11, the ash and coke above the track 12 will be pushed inward by the plug plate 14. If the length of the track 12 is consistent with the length of the valve body 11, the ash and coke will be squeezed on the track 12 and cannot be removed, which will eventually cause the plug plate 14 to fail to close in place. Therefore, the length of the track 12 needs to be shorter than the length of the valve body 11, and the track 12 is not connected to the front and rear of the valve body 11. When the ash and coke are pushed inward by the plug plate 14, they will fall into the furnace bottom ash conveyor through the first gap 13 between the end of the track 12 and the valve body 11, and the plug plate 14 can be smoothly inserted into the valve body 11 to isolate the furnace bottom ash conveyor and the ash leakage chute.

[0046] Specifically, the valve body 11 is provided with flange surfaces 115 and 116 on the upper and lower sides, which are used to connect the ash leakage chute and the furnace bottom ash conveyor.

[0047] Specifically, the plug plate 14 is a steel plate, and two handle holes are formed in the body of the plug plate 14 to facilitate the pushing and pulling actions of the operator. The plug plate 14 can be completely separated from the valve body 11. When the isolation plug plate valve 1 needs to be closed, the plug plate 14 is inserted into the valve body 11 from the sealing box 15. Since the isolation plug plate valve 1 is normally open, it is only closed when the furnace bottom ash conveyor needs to be repaired. Therefore, the plug plate 14 is separated from the valve body 11 for a long time.

[0048] In some embodiments, the isolation plug plate valve 1 further comprises a sealing box 15 arranged on the front side wall 114 of the valve body 11, which is used to seal the valve body 11 after the plug plate 14 is inserted into the valve body 11.

[0049] Specifically, the sealing box 15 is arranged on one side of the valve body 11, which functions to isolate the valve body 11 from the outside environment and prevent the ash and slag as well as the positive pressure primary air from leaking out and polluting the environment. When the isolation plug plate valve 1 needs to be closed or opened, the sealing box 15 needs to be opened, the plug plate 14 needs to be taken out or inserted, and then the sealing box 15 needs to be closed, so as to realize the opening and closing of the isolation plug plate valve 1.

[0050] In some embodiments, the sealing box 15 comprises:

[0051] a box body 151 arranged on the front side wall 114 of the valve body 11;

[0052] a cover plate 152 arranged on the box body 151 for covering the box body 151; and

[0053] a lock 153 arranged on the box body 151 for locking the cover plate 152.

[0054] In some embodiments, the cover plate 152 is rotatably arranged on the lower edge of the opening of the box body 151; the lock 153 is arranged on the upper edge of the opening of the box body 151; when the cover plate 152 covers the opening of the box body 151, the lock 153 locks the cover plate 152.

[0055] In some embodiments, a sealing member 154 is arranged on the inner surface of the cover plate 152;

[0056] When the cover plate 152 covers the opening of the box body 151, the sealing member 154 seals the opening of the box body 151.

[0057] Specifically, the cover plate 152 is installed on one side of the valve body 11, and a sealing strip can be arranged around the cover plate 152. When the furnace bottom ash conveying machine is normally operated, the sealing box 15 is closed, and the lock 153 is tightened to seal the entire valve body 11 to prevent the primary air under positive pressure from leaking out. When the furnace bottom ash conveying machine needs to be overhauled, the sealing box 15 is opened, the plug plate 14 is inserted into the valve body 11 through the box body 151, the ash leakage chute is isolated from the furnace bottom ash conveying machine, and then the sealing box 15 is closed. In this way, the furnace bottom ash conveying machine is isolated from the ash leakage chute, and the air blower for supplying primary air to the ash leakage chute does not need to be stopped, so that the garbage can be well dried, and the garbage incinerator can ensure normal incineration conditions during the furnace bottom ash conveying machine overhaul.

[0058] In some embodiments, the sealing box 15 further comprises:

[0059] an ash blocking plate 16 arranged obliquely downward on the valve body 11 above the track 12;

[0060] The projected width of the ash blocking plate 16 is greater than the width of the track 12.

[0061] Specifically, the track 12 is provided with an ash blocking plate 16 arranged obliquely downward, and the projected width of the ash blocking plate 16 is slightly wider than the track 12. The length of the ash blocking plate 16 is consistent with the length of the valve body 11. The ash blocking plate 16 blocks the ash falling from above the ash leakage chute and prevents the ash from directly falling onto the track 12, thereby reducing the ash and coke above the track 12 and avoiding the difficulty of inserting the plug plate 14 into the valve body 11 due to too much ash and coke.

[0062] In some embodiments, the angle 161 between the dust barrier 16 and the horizontal plane is 45°.

[0063] In some embodiments, the application further provides a dust leakage hopper, comprising:

[0064] a hopper body; and

[0065] According to the isolation plug-in valve 1 described above, the isolation plug-in valve 1 is arranged below the hopper body.

[0066] In some embodiments, the application further provides a dust conveying device, comprising:

[0067] According to the dust leakage hopper described above; and

[0068] A furnace bottom dust conveying machine is arranged below the dust leakage hopper.

[0069] In some embodiments, the application further provides a waste incineration power plant, comprising the dust conveying device described above.

[0070] Overall, when the furnace bottom dust conveying machine is in normal operation, the lock 153 is used to lock the cover plate 152 of the sealing box 15, the cover plate 152 of the sealing box 15 has high-temperature-resistant sealing material inside, which can prevent the primary air in the dust leakage hopper from leaking out; when the furnace bottom dust conveying machine needs to be overhauled, the isolation plug-in valve 1 needs to be closed to isolate the dust leakage hopper from the furnace bottom dust conveying machine, ensuring the safety of the maintenance personnel, at this time, the lock 153 is disengaged, the cover plate 152 of the sealing box 15 is opened, the plug-in plate 14 is completely inserted into the isolation plug-in valve 1 along the direction of L, and is seated on the track 12 inside the isolation plug-in valve 1, then the cover plate 152 of the sealing box 15 is closed and the lock 153 is locked, so as to realize the isolation of the dust leakage hopper and the furnace bottom dust conveying machine; after the furnace bottom dust conveying machine is overhauled, the plug-in plate 14 is taken out from the isolation plug-in valve 1 and placed in a special place for storage.

[0071] The plug-in plate 14 of the isolation plug-in valve 1 in the application is completely separated from the valve body 11 during normal operation of the furnace bottom dust conveying machine, avoiding the rusting and jamming of the traditional plug-in valve in the high-temperature and high-humidity environment for a long time; in addition, the track 12 of the plug-in plate 14 has a gap at both ends of the valve body 11, and the dust barrier 16 is arranged above the track 12, which maximizes the amount of ash falling on the track 12, and when there is ash on the track 12, it will be pushed inward by the plug-in plate 14 during the insertion process, and will fall through the first gap between the track 12 and the valve body 11, thereby avoiding the jamming problem of the traditional plug-in plate during closing, and improving the reliability.

[0072] The plug and the valve body of the isolation plug-in valve of the application can be completely separated, when the plug-in valve does not need to be closed, the plug is taken out from the valve body, the sealing box is pressed by the pressing bolt, the plug is stored separately after being taken out, when the plug needs to be closed, the sealing box is opened, the plug is directly inserted into the valve body, if there are more ash and coke in the valve body, because the opening space of the sealing box is large, the inside of the valve body can be cleaned by the maintenance personnel, so that the plug can be smoothly inserted, thereby the ash hopper is isolated from the furnace bottom ash conveying machine, the safety of the maintenance personnel is ensured, the drying of the garbage is also ensured, and the garbage incinerator does not need to use natural gas to maintain normal incineration conditions

[0073] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0074] The above embodiments only express several implementation manners of the application, and are only used to illustrate the technical scheme of the application, rather than limit it; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the application; for those skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application.

Claims

1. An isolating plug valve comprising a valve body, characterized in that Further comprising: a track provided on the left and right side walls of the valve body, and a first gap between the end of the track and the rear side wall of the valve body; and a plug plate detachably provided on the track, the plug plate being inserted into the valve body along the track to make the isolation plug valve in an isolated closed state.

2. The isolating plug valve of claim 1, wherein, Further comprising: a sealing box provided on the front side wall of the valve body for sealing the valve body after the plug plate is inserted into the valve body.

3. The isolating plug valve of claim 2, wherein, The sealing box comprises: a box body provided on the front side wall of the valve body; a cover plate provided on the box body for covering the box body; and a lock catch provided on the box body for locking the cover plate.

4. The isolation plug valve according to claim 3, wherein: the cover plate is rotatably provided on the lower edge of the opening of the box body; the lock catch is provided on the upper edge of the opening of the box body; and the lock catch locks the cover plate when the cover plate covers the opening of the box body.

5. The isolation plug valve according to claim 4, wherein: a sealing member is provided on the inner surface of the cover plate; and the sealing member seals the opening of the box body when the cover plate covers the opening of the box body. Further comprising:

6. The isolating flapper valve of claim 1, wherein, a dust baffle obliquely downward provided on the valve body above the track; the projection width of the dust baffle is greater than the width of the track.

7. The isolation plug valve according to claim 6, wherein: the angle between the dust baffle and the horizontal plane is 45°. comprising:

8. An ash-dumping hopper characterized by a hopper body; and the isolation plug valve according to any one of claims 1-7 is provided below the hopper body. comprising: the ash leakage hopper according to claim 8; and 9. A device for conveying ash, characterized in that a furnace bottom ash conveyor provided below the ash leakage hopper. comprising the ash conveying device according to claim 9. ​ ​ 10. A waste-to-energy plant incinerator, characterized by ​

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