Anti-blocking device for air chamber of waste incineration power plant

Abstract

Disclosed in the present utility model is an anti-blocking device for an air chamber of a waste incineration power plant, comprising a stirring driving unit and a stirring unit which are arranged at an air chamber bottom. The stirring unit is connected to the stirring driving unit and can be driven by the stirring driving unit to stir floating ash on the water surface at a water seal position of the air chamber bottom, thereby promoting the floating ash to settle on an incinerator bottom ash conveyor. According to the present utility model, the floating ash on the water surface below the air chamber is stirred, and each stirring action acts as an unblocking action on the floating ash on the water surface below the air chamber. Rapid stirring promotes the floating ash to mix with water and settle on the incinerator bottom ash conveyor, and the settled ash is taken out of the incinerator bottom ash conveyor by means of a scraper, so that the problem of air chamber blockage caused by the failure to promptly clean up floating ash is effectively solved.

Description

A wind chamber anti-blocking device for a waste incineration power plant Technical Field

[0001] The utility model relates to an anti-blocking device for an air chamber of a garbage incineration power plant, belonging to the technical field of garbage incineration treatment. Background Art

[0002] At present, due to the large amount of ash accumulated above the water surface of the ash conveyor at the bottom of the furnace in waste incineration power plants, the counterclockwise rotation of the scraper conveyor cannot effectively scrape the ash from one section of the wind chamber. In addition, due to the large tilting angle of the grate and the large amount of ash falling during the tilting, the wind chamber near the head and tail of the scraper conveyor is often blocked. Maintenance personnel must clean the wind chamber every day, which increases the danger and workload of the maintenance work and brings great inconvenience to daily operations.

[0003] Utility Model Content

[0004] To this end, the utility model proposes an anti-clogging device for the wind chamber of a waste incineration power plant, which stirs the floating ash on the water surface of the wind chamber through the scraper of the auxiliary furnace bottom ash conveyor to make it settle in the furnace bottom ash conveyor and be brought into the slag discharger by the scraper, thereby solving the problem of the wind chamber being often blocked by falling ash in the prior art.

[0005] In order to solve the above problems, the present invention proposes the following technical solutions:

[0006] A device for preventing clogging of the wind chamber of a waste incineration power plant comprises a stirring drive unit and a stirring unit arranged at the bottom of the wind chamber; the stirring unit is connected to the stirring drive unit and can, under the drive of the stirring drive unit, stir floating ash on the water surface at the water seal at the bottom of the wind chamber, thereby promoting the floating ash to settle to the ash conveyor at the bottom of the furnace.

[0007] Furthermore, the stirring drive unit includes a motor and a reducer, and the motor is connected to the stirring unit via the reducer.

[0008] Furthermore, the motor is fixed by a bearing seat, and the bearing seat is fixed on the opposite side of the water tank of the furnace bottom ash conveyor.

[0009] Furthermore, the stirring unit includes a coupling, a stirring shaft and an agitator arranged on the stirring shaft. The coupling is connected to the reducer, and the stirring shaft is connected to the coupling. The motor drives the coupling and the stirring shaft to rotate through the reducer, thereby driving the agitator to rotate and stir.

[0010] Furthermore, the stirring unit includes a plurality of stirrers arranged in an axially staggered manner along the stirring shaft.

[0011] Furthermore, the plurality of agitators are distributed at uniform staggered angles in the circumferential direction of the agitator shaft.

[0012] Furthermore, the stirrer includes a connecting rod and a plurality of stirring blades arranged on the connecting rod, and the connecting rod is fixedly connected to the stirring shaft through one end.

[0013] Furthermore, the stirrer also includes an end stirring blade provided at the other end of the connecting rod, and the end stirring blade forms an obtuse angle with the connecting rod.

[0014] The above technical solution provided by the utility model has the beneficial effect that: when the amount of fallen ash is large, the scraper of the furnace bottom ash conveyor cannot effectively scrape away the floating ash, medicine residue, etc. on the water surface, which easily causes the wind chamber to be blocked by the fallen ash. The utility model stirs the floating ash on the water surface below the wind chamber. Each stirring is a dredging of the floating ash on the water surface below the wind chamber. The stirring quickly promotes the floating ash to mix with water and then settle to the furnace bottom ash conveyor, and is taken out of the furnace bottom ash conveyor by the scraper, effectively solving the problem of wind chamber blockage caused by the failure to clean the floating ash in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a front view of an anti-clogging device for an air chamber of a waste incineration power plant according to an embodiment of the present invention.

[0016] FIG2 is a top view of the anti-clogging device for the wind chamber of a waste incineration power plant according to an embodiment of the present invention.

[0017] FIG3 is a schematic diagram of the use status of the anti-clogging device for the wind chamber of a waste incineration power plant according to an embodiment of the present invention (seen from the right).

[0018] FIG4 is a schematic diagram of an exemplary agitator structure in the anti-clogging device for the wind chamber of a waste incineration power plant according to an embodiment of the present invention.

[0019] Explanation of the accompanying reference numerals: 1-stirring drive unit, 11-motor, 12-reducer; 2-stirring unit, 21-coupling, 22-stirring shaft, 23-stirring blade, 231-connecting rod, 232-stirring blade, 233-end stirring blade; 3-bottom of the air chamber; 4-water level; 5-ash conveyor at the bottom of the furnace. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and in conjunction with specific implementation methods and examples. The purpose of providing the examples is for illustration only and does not impose any limitation. In addition, the spatial orientation words such as "up", "down", "left", and "right" used in the description of the technical solution of the present invention are for the convenience of describing the relative position relationship between the components of the product, and do not mean that the product has only the swing direction shown in the figure. In actual use, as the product swing direction changes (for example, rotated 90 degrees or other directions), the spatial description used to describe its swing direction should also be interpreted in a similar manner.

[0021] Referring to FIG1 , an embodiment of the present invention discloses an anti-clogging device for the wind chamber of a waste incineration power plant. The device comprises a stirring drive unit 1 and a stirring unit 2 disposed at the bottom 3 of the wind chamber. The stirring unit 2 is connected to the stirring drive unit 1 and can, driven by the stirring drive unit 1, stir floating ash on the water surface at the water seal at the bottom 3 of the wind chamber, thereby promoting the floating ash to settle to the furnace bottom ash conveyor 5. Existing furnace bottom ash conveyors mainly rely on internal scrapers to scrape ash / dregs. However, when the amount of fallen ash is large, it cannot be effectively cleaned, often causing wind chamber blockage, which requires manual cleaning. The device of the embodiment of the present invention, by stirring, allows the floating ash on the water surface, which is originally difficult to settle, to settle by mixing with water, and is then carried into the slag discharger by the scraper, effectively solving the problem of wind chamber blockage.

[0022] FIG2 is a top view of the anti-clogging device for the wind chamber of a waste incineration power plant according to an embodiment of the present invention, and FIG3 is a diagram of the anti-clogging device for the wind chamber of a waste incineration power plant according to an embodiment of the present invention in use (shown from a right view perspective). Referring to FIG2 and FIG3 , the stirring drive unit 1 includes a motor 11 and a reducer 12, and the stirring unit 2 includes a coupling 21, a stirring shaft 22, and an agitator 23, wherein the motor 11 is connected to the coupling 21 via the reducer 12, the stirring shaft 22 is connected to the coupling 21, and the agitator 23 is fixed to the stirring shaft 22. The motor 11 drives the coupling 21 and the stirring shaft 22 to rotate through the reducer 12, thereby driving the agitator 23 to rotate and stir.

[0023] In some embodiments, the motor 11 and the reducer 12 are integrated. The motor 11 can be secured via a bearing block (not shown), which is secured to the opposite side of the water tank of the furnace bottom ash conveyor. It should be understood that this is only an exemplary method for securing the motor, and those skilled in the art may secure the motor in other ways. This utility model is not limited to the specific method for securing the motor.

[0024] Referring to Figures 1 to 3, in some embodiments, a plurality of agitators 23 are provided on the stirring shaft 22. Preferably, the plurality of agitators 23 are staggered along the axial direction of the stirring shaft 22. In the embodiment shown in Figures 1 to 3, four agitators 23 are provided on the stirring shaft 22. The four agitators 23 are staggered along the axial direction of the stirring shaft 22. Referring to Figure 3, preferably, the four agitators are staggered at uniform angles, that is, the four agitators are distributed at uniform staggered angles along the circumference of the stirring shaft, such as 90 degrees as shown in Figure 3, with one each at the top, bottom, left, and right. However, this is merely an example, and the number of agitators is not limited to the four shown in the figures. It can be less than or more than four, depending on the specific needs. The plurality of agitators can be staggered or not staggered along the axial direction of the stirring shaft, and the staggered angles can be uniform or uneven. In addition, the shape of the agitator can be regular or irregular, such as rods, blocks, or sheets, or can be spiral blades, or can be other more complex shapes designed for more complete stirring. In short, the present invention does not limit the shape of the agitator.

[0025] As shown in FIG4 , in other embodiments, in order to achieve more efficient and sufficient stirring, the stirrer on the stirring shaft is designed to include a connecting rod 231 and a plurality of stirring blades 232 provided on the connecting rod, wherein the connecting rod 231 is fixedly connected to the stirring shaft 22 at one end. In addition, the stirrer may further include an end stirring blade 233 provided at the other end of the connecting rod 231, and the end stirring blade 233 forms an obtuse angle with the connecting rod 231.

[0026] When the grate of the incinerator turns normally, ash falls on the water surface of the wind chamber. The device provided by the embodiment of the utility model clears the floating ash on the water surface of the wind chamber every time it stirs, so that the surface floating ash is effectively brought into the slag discharger by the scraper, reducing the frequency of wind chamber blockage, thereby reducing the workload of maintenance personnel to check the wind chamber. It has been well applied in actual implementation and no wind chamber blockage has occurred since installation.

[0027] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, it is possible to make several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and the performance or use are the same, and all of them should be considered to fall within the scope of protection of the present invention.

Claims

1. A device for preventing blockage of an air chamber in a waste incineration power plant, characterized by: It includes a stirring drive unit and a stirring unit arranged at the bottom of the wind chamber; the stirring unit is connected to the stirring drive unit and can stir the floating ash on the water surface at the water seal at the bottom of the wind chamber under the drive of the stirring drive unit, thereby promoting the floating ash to settle to the ash conveyor at the bottom of the furnace.

2. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 1, characterized in that: The stirring drive unit includes a motor and a reducer, and the motor is connected to the stirring unit through the reducer.

3. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 2, characterized in that: The motor is fixed by a bearing seat, and the bearing seat is fixed on the opposite side of the water tank of the furnace bottom ash conveyor.

4. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 2, characterized in that: The stirring unit includes a coupling, a stirring shaft and an agitator arranged on the stirring shaft. The coupling is connected to the reducer, and the stirring shaft is connected to the coupling. The motor drives the coupling and the stirring shaft to rotate through the reducer, thereby driving the agitator to rotate and stir.

5. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 4, characterized in that: The stirring unit includes a plurality of stirrers arranged in a staggered manner along the axial direction of the stirring shaft.

6. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 5, characterized in that: The plurality of stirrers are distributed at uniform staggered angles in the circumferential direction of the stirring shaft.

7. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 4, characterized in that: The stirrer includes a connecting rod and a plurality of stirring blades arranged on the connecting rod, and the connecting rod is fixedly connected to the stirring shaft through one end thereof.

8. The anti-clogging device for the wind chamber of a waste incineration power plant according to claim 7, characterized in that: The stirrer further comprises an end stirring blade arranged at the other end of the connecting rod, and the end stirring blade forms an obtuse angle with the connecting rod.

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