Ash conveying system suitable for garbage incinerator

Abstract

The ash conveying system comprises a fly ash conveyor, an ash falling channel, a slag extractor and a slag pit, the input end of the fly ash conveyor is connected with an ash hopper of the incinerator, the output end of the fly ash conveyor is connected with the input end of the ash falling channel, the output end of the ash falling channel is provided with two outlets which are connected in parallel, and the ash falling channel is connected with the slag pit. Wherein one outlet is communicated with a first branch with a gate valve, the other outlet is provided with a detachable upper blocking plate, the upper portion of the slag pit is provided with a detachable lower blocking plate, and the second branch is detachably installed between the upper blocking plate and the lower blocking plate. The first branch is communicated with a slag falling vertical shaft, the slag falling vertical shaft is communicated with a slag extractor, and the slag extractor is communicated with a slag pit; when the garbage incinerator operates normally, the first branch is connected, the second branch is disconnected, and when the garbage incinerator is overhauled, the first branch is closed, and the second branch is connected. The ash conveying device has the advantages of compact structure, convenience in maintenance, good ash conveying effect, facilitation of ensuring normal operation of the waste incineration power plant and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage incineration treatment, and in particular relates to an ash conveying system suitable for a garbage incinerator. Background Art

[0002] When the ash conveying system is shut down for maintenance to solve the ash leakage problem, most of the time, the ash conveyor, ash hopper and other related equipment are first inspected. When the ash conveying system is repaired, the ash will go directly into the slag discharger. After the ash conveying system is repaired, the manhole of the slag discharger is opened and the inside of the slag discharger is cleaned manually. Because the ash is fine, it is easy to cause a lot of fine ash in the slag discharger during the shutdown process, which is difficult to clean. It consumes a lot of manpower and material resources, and takes a long time, and it cannot fundamentally solve the problems of ash pipe blockage and dust. If the fly ash cannot be removed in time, it is easy to cause the entire waste incineration power generation system to fail to operate normally, such as frequent tripping when starting the furnace, which has a great adverse impact on the operation of the waste incineration power plant. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an ash conveying system suitable for a waste incinerator which has a compact structure, is convenient to maintain, has a good ash conveying effect and is conducive to ensuring the normal operation of a waste incineration power plant.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An ash conveying system suitable for a waste incinerator comprises: a fly ash conveyor, an ash dropping channel, a slag discharger and a slag pit, wherein the input end of the fly ash conveyor is connected to the ash hopper of the incinerator, the output end of the fly ash conveyor is connected to the input end of the ash dropping channel, the output end of the ash dropping channel is provided with two parallel outlets, one of which is communicated with a first branch with a plug valve, and the other outlet is provided with a detachable upper plugging plate, a detachable lower plugging plate is provided on the upper part of the slag pit, and the second branch is detachably installed between the upper plugging plate and the lower plugging plate; the first branch is communicated with a slag dropping shaft, the slag dropping shaft is communicated with the slag discharger, and the slag discharger is connected to the slag pit; the operating states of the first branch and the second branch are opposite, when the waste incinerator is operating normally, the first branch is connected and the second branch is disconnected, and when the waste incinerator is under maintenance, the first branch is closed and the second branch is connected.

[0006] As a further improvement of the present invention, a spray assembly is further provided on the upper portion of the slag pit, and the spray assembly is used to spray the fallen ash transported into the slag pit through the second branch.

[0007] As a further improvement of the present invention, the second branch adopts a double-layer pipeline, and the double-layer pipeline is composed of an inner lining and an outer shell made of different materials.

[0008] As a further improvement of the utility model, the lining is made of polymer material, and the outer shell is made of stainless steel material.

[0009] As a further improvement of the utility model, the lining is made of polyethylene material.

[0010] As a further improvement of the present invention, a double-layer flap valve is provided between the output end of the fly ash conveyor and the input end of the ash falling channel.

[0011] As a further improvement of the utility model, a rapper is provided on the side of the ash falling channel.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] The utility model is suitable for an ash conveying system of a waste incinerator, and the main structure of the ash conveying system is composed of a fly ash conveyor, an ash dropping channel, a slag discharger and a slag pit; specifically, the input end of the fly ash conveyor is connected to the ash hopper of the incinerator, and the output end of the fly ash conveyor is connected to the input end of the ash dropping channel to realize the output of fly ash in the ash hopper of the incinerator; further, two parallel outlets are arranged at the output end of the ash dropping channel, one of which is connected to a first branch with a plug valve, and a detachable upper plugging plate is arranged at the other outlet, and at the same time, a detachable lower plugging plate is arranged on the upper part of the slag pit, and the second branch is detachably installed between the upper plugging plate and the lower plugging plate, which can be installed when needed and removed when not needed, so it is flexible to use and does not occupy the aisle space of the incineration power plant workshop; the first branch is connected to the slag dropping shaft The slag shaft is connected with the slag discharger, and the slag discharger is connected with the slag pit. When the garbage incinerator is operating normally, the upper plugging plate and the lower plugging plate are closed, and the second branch is not installed. The fallen ash passes through the fly ash conveyor, the ash falling channel, the first branch, the slag shaft and the slag discharger in turn, and is transported to the slag pit; when the garbage incinerator is under maintenance, the gate valve is closed, the second branch is installed on the upper plugging plate and the lower plugging plate, and the upper plugging plate and the lower plugging plate are opened. The fallen ash passes through the fly ash conveyor, the ash falling channel and the second branch in turn, and is transported to the slag pit without passing through the slag discharger, thereby avoiding blockage of the slag discharger due to falling ash during the maintenance of the incinerator, reducing and eliminating the problems of dust and slag discharger failure caused by falling ash from the root, and also enables the incinerator and the slag discharger to be maintained at the same time, thereby improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the structural principle of an ash conveying system suitable for a garbage incinerator in a specific embodiment of the present invention.

[0015] Legend: 1. Fly ash conveyor; 2. Ash falling channel; 3. Gate valve; 4. Slag falling shaft; 5. Slag discharger; 6. Slag pit; 7. Spray assembly; 8. First branch; 9. Second branch; 91. Lining; 92. Outer shell; 10. Upper plugging plate; 11. Lower plugging plate; 12. Double-layer flap valve; 13. Vibrator. DETAILED DESCRIPTION

[0016] The following describes the embodiments of the present invention in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figure 1 The described embodiments are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0017] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "front", "back", "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 present invention 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 present invention.

[0018] 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "inlay" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Example

[0021] like Figure 1As shown, the ash conveying system of the utility model suitable for a waste incinerator comprises: a fly ash conveyor 1, an ash falling channel 2, a slag discharger 5 and a slag pit 6. The input end of the fly ash conveyor 1 is connected to the ash hopper of the incinerator, the output end of the fly ash conveyor 1 is connected to the input end of the ash falling channel 2, and the output end of the ash falling channel 2 is provided with two parallel outlets, one of which is connected to the first branch 8 with a plug valve 3, and the other outlet is provided with a detachable upper plugging plate 10, and a detachable lower plugging plate 11 is provided on the upper part of the slag pit 6, and the second branch 9 is detachably installed between the upper plugging plate 10 and the lower plugging plate 11. The first branch 8 is connected to the slag falling shaft 4, and the slag falling shaft 4 is connected to the slag discharger 5, and the slag discharger 5 is connected to the slag pit 6. The operation states of the first branch 8 and the second branch 9 are opposite. When the waste incinerator is operating normally, the first branch 8 is turned on and the second branch 9 is turned off. When the waste incinerator is under maintenance, the first branch 8 is closed and the second branch 9 is turned on.

[0022] In this embodiment, the main structure of the ash conveying system is composed of a fly ash conveyor 1, an ash dropping channel 2, a slag discharger 5 and a slag pit 6; specifically, the input end of the fly ash conveyor 1 is connected to the ash hopper of the incinerator, and the output end of the fly ash conveyor 1 is connected to the input end of the ash dropping channel 2 to realize the output of fly ash in the ash hopper of the incinerator; further, two parallel outlets are arranged at the output end of the ash dropping channel 2, one of which is connected to the first branch 8 with a plug valve 3, and the other outlet is provided with a removable upper plugging plate 10. At the same time, a removable lower plugging plate 11 is correspondingly arranged on the upper part of the slag pit 6, and the second branch 9 is removably installed between the upper plugging plate 10 and the lower plugging plate 11. It can be installed when needed and removed when not needed. It is flexible to use and does not occupy the aisle space of the incineration power plant workshop. The first branch 8 is connected to the slag shaft 4, the slag shaft 4 is connected to the slag discharger 5, the slag discharger 5 is connected to the slag pit 6. When the garbage incinerator is operating normally, the upper plugging plate 10 and the lower plugging plate 11 are closed, and the second branch 9 is not installed. The ash passes through the fly ash conveyor 1, the ash channel 2, the first branch 8, the slag shaft 4 and the slag discharger 5 in sequence and is transported to the slag pit 6. When the garbage incinerator is under maintenance, the gate valve 3 is closed and the second branch 9 is installed on the upper ash conveyor 1. The plugging plate 10 and the lower plugging plate 11 are opened, and the fallen ash passes through the fly ash conveyor 1, the ash falling channel 2, and the second branch 9 in sequence, and is transported to the slag pit 6 without passing through the slag discharger 5, thereby avoiding the blockage of the slag discharger 5 due to the falling ash during the maintenance of the incinerator, reducing and eliminating the dust caused by the falling ash and the malfunction of the slag discharger from the root, and also realizing the simultaneous maintenance of the incinerator and the slag discharger, thereby improving the maintenance efficiency.

[0023] In this embodiment, a spray assembly 7 is further provided on the upper part of the slag pit 6, and the spray assembly 7 is used to spray the fallen ash transported to the slag pit 6 through the second branch 9, so as to avoid the generation of dust in the slag pit 6. Specifically, the spray assembly 7 can be a combination of a nozzle and a high-pressure water pipe, and the high-pressure water pipe is a common water pipe in the factory area, and the high-pressure water is sprayed into the slag pit 6 through the nozzle. It not only prevents dust and improves the maintenance environment of the waste incineration boiler, but also solves the problems that the slag discharger cannot be repaired at the same time as the incinerator, and the fine ash of the slag discharger needs to be manually opened and cleaned through a manhole.

[0024] In this embodiment, the second branch 9 adopts a double-layer pipeline, which is composed of an inner liner 91 and an outer shell 92. The inner liner 91 is made of a polymer material, and the outer shell 92 is made of a stainless steel material. Specifically, the inner liner 91 is made of a polyethylene material, which has the characteristics of low cost and significant anti-blocking and anti-adhesion effects.

[0025] In this embodiment, a double-layer flap valve 12 is provided between the output end of the fly ash conveyor 1 and the input end of the ash falling channel 2, and a vibrator 13 is provided on the side of the ash falling channel 2, which effectively ensures the smoothness of the ash conveying, avoids the situation where the ash falls block the pipeline, and improves the stability and reliability of the ash conveying system operation.

[0026] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. An ash conveying system suitable for a waste incinerator, It is characterized in that include: A fly ash conveyor (1), an ash dropping channel (2), a slag discharger (5) and a slag pit (6), wherein the input end of the fly ash conveyor (1) is connected to the ash hopper of the incinerator, the output end of the fly ash conveyor (1) is connected to the input end of the ash dropping channel (2), the output end of the ash dropping channel (2) is provided with two parallel outlets, one of which is connected to a first branch (8) with a gate valve (3), and the other outlet is provided with a detachable upper plugging plate (10), a detachable lower plugging plate (11) is provided on the upper part of the slag pit (6), and the second outlet is provided with a detachable upper plugging plate (10). The branch (9) is detachably mounted between an upper plugging plate (10) and a lower plugging plate (11); the first branch (8) is connected to a slag falling shaft (4), the slag falling shaft (4) is connected to a slag discharger (5), and the slag discharger (5) is connected to a slag pit (6); the operation states of the first branch (8) and the second branch (9) are opposite; when the waste incinerator is operating normally, the first branch (8) is connected and the second branch (9) is disconnected; when the waste incinerator is under maintenance, the first branch (8) is closed and the second branch (9) is connected.

2. The ash conveying system suitable for a waste incinerator according to claim 1, It is characterized in that A spray assembly (7) is also provided on the upper part of the slag pit (6), and the spray assembly (7) is used to spray the fallen ash transported to the slag pit (6) through the second branch (9).

3. The ash conveying system suitable for a waste incinerator according to claim 2, It is characterized in that The second branch (9) adopts a double-layer pipeline, and the double-layer pipeline is composed of an inner lining (91) and an outer shell (92) made of different materials.

4. The ash conveying system suitable for a waste incinerator according to claim 3, It is characterized in that The inner lining (91) is made of polymer material, and the outer shell (92) is made of stainless steel material.

5. The ash conveying system suitable for a waste incinerator according to claim 4, It is characterized in that The inner liner (91) is made of polyethylene material.

6. The ash conveying system for a waste incinerator according to any one of claims 1 to 5, It is characterized in that A double-layer flap valve (12) is provided between the output end of the fly ash conveyor (1) and the input end of the ash falling channel (2).

7. The ash conveying system for a waste incinerator according to any one of claims 1 to 5, It is characterized in that A rapper (13) is provided on the side of the ash falling channel (2).

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