Municipal sludge drying incinerator

Abstract

The utility model relates to the field of incinerators, in particular to a municipal sludge drying incinerator which comprises an incinerator body and a rotating shaft, a feeding channel is formed in the upper portion of the incinerator body, a discharging channel is formed in the lower portion of the incinerator body, a combustion spray head is arranged on one side of the incinerator body, and the rotating shaft is arranged in the incinerator body. The two ends of the rotating shaft are rotationally connected to the furnace body, a plurality of stirring rods are arranged on the rotating shaft, and a plurality of air spraying holes are formed in the stirring rods. The device has the effect of improving the incineration efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of incinerator, in particular to a municipal sludge drying incinerator. BACKGROUND

[0002] In the prior art, during the sludge treatment process, the sludge residue formed by the last drying of the sludge needs to be incinerated. When the dried sludge is put into the incinerator, it first needs to be stirred by the stirring shaft to break up the lumpy sludge. However, during the stirring process, some small lumps of sludge may still not be broken up, which will affect the efficiency of incineration. CONTENT OF THE UTILITY MODEL

[0003] In order to improve the efficiency of incineration, the present application provides a municipal sludge drying incinerator.

[0004] The present application provides a municipal sludge drying incinerator, which adopts the following technical solution:

[0005] A municipal sludge drying incinerator, comprising a furnace body and a rotating shaft, the upper part of the furnace body has a feeding channel, the lower part of the furnace body has a discharging channel, one side of the furnace body is provided with a combustion nozzle, the rotating shaft is arranged in the furnace body, the two ends of the rotating shaft are rotatably connected to the furnace body, a plurality of stirring rods are arranged on the rotating shaft, and a plurality of air injection holes are arranged on the stirring rods.

[0006] By adopting the above technical solution, the air injection holes are arranged on the stirring rods. When the stirring rods stir the dried sludge, the air injection holes can blow air to the sludge at the same time. Some small lumps of sludge can be blown away through the air injection holes, thereby improving the stirring efficiency and further improving the incineration efficiency.

[0007] Optionally, the plurality of stirring rods are arranged in parallel, and the plurality of stirring rods are arranged in intervals along the axis direction of the rotating shaft.

[0008] Optionally, the inside of the stirring rod is provided with a first cavity, the air injection holes are arranged on the two side surfaces of the stirring rod, the air injection holes are communicated with the first cavity, and the first cavity is communicated with an external air blower.

[0009] By adopting the above technical solution, the first cavity is communicated with the external air blower. The air blower blows gas into the first cavity, and the gas comes out through the air injection holes.

[0010] Optionally, the stirring rod is provided with a cleaning assembly, and the cleaning assembly can clean the air injection holes.

[0011] By adopting the above technical solution, since the inside of the furnace body is a high-dust environment, the air injection holes are easily blocked by dust after being used for a period of time. Therefore, the cleaning assembly is arranged on the stirring rod, and the stirring rod can be dredged by the cleaning assembly.

[0012] Optionally, the cleaning assembly comprises a sliding plate and a dredging needle, the sliding plate is located inside the first cavity and is connected to the stirring rod in the thickness direction of the stirring rod, the dredging needle is arranged on the sliding plate and corresponds to the plurality of air injection holes, and the dredging needle enters the air injection hole by sliding the sliding plate.

[0013] By adopting the above technical scheme, when the air injection hole needs to be dredged, the sliding plate is slid to make the dredging needle enter the air injection hole, thereby dredging and cleaning the air injection hole.

[0014] Optionally, the sliding plate is provided with a control rod, the stirring rod is provided with a first through hole, the control rod is slid through the first through hole and extends out of the stirring rod, an inner threaded hole is arranged on the inner circumferential wall of the end of the first through hole away from the sliding plate, a threaded portion is arranged on the outer circumferential wall of the end of the control rod outside the stirring rod, and the threaded portion is threadedly connected to the inner threaded hole.

[0015] By adopting the above technical scheme, the control rod is arranged on the sliding plate to facilitate the sliding of the sliding plate, and when the air injection hole does not need to be cleaned, the threaded portion on the control rod is threadedly connected to the inner threaded hole to fix the control rod, so that the sliding plate does not slide under the action of the gas.

[0016] Optionally, two limiting plates are coaxially arranged on the end of the control rod close to the sliding plate, the control rod is rotatably arranged through the sliding plate, and the sliding plate is located between the two limiting plates.

[0017] By adopting the above technical scheme, the limiting plates are arranged between the control rod and the sliding plate to connect them, so that the control rod can control the sliding of the sliding plate and can also rotate relative to the sliding plate.

[0018] In summary, the present application has at least one of the following beneficial technical effects:

[0019] 1. The air injection hole is arranged on the stirring rod, and when the stirring rod stirs the dried sludge, the air injection hole blows air to the sludge, some small block-shaped sludge is blown away through the air injection hole, the stirring efficiency is improved, and the incineration efficiency is improved.

[0020] 2. The control rod is arranged on the sliding plate to facilitate the sliding of the sliding plate, and when the air injection hole does not need to be cleaned, the threaded portion on the control rod is threadedly connected to the inner threaded hole to fix the control rod, so that the sliding plate does not slide under the action of the gas. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of example 1.

[0022] Figure 2 is a structural schematic diagram of the rotating shaft in Example 1;

[0023] Figure 3 is a structural schematic diagram of the stirring rod in Example 1;

[0024] Figure 4 is a structural schematic diagram of Example 2.

[0025] Reference signs: 1, furnace body; 11, feeding channel; 12, discharging channel; 2, rotating shaft; 21, driving motor; 22, stirring rod; 221, first cavity; 222, air injection hole; 223, first through hole; 224, internally threaded hole; 23, second cavity; 24, discharging port; 25, threaded ring; 26, cover body; 3, support plate; 31, rotating rod; 4, combustion nozzle; 5, cleaning assembly; 51, sliding plate; 52, dredging needle; 53, operating rod; 531, threaded part; 532, limiting plate. DETAILED DESCRIPTION

[0026] The following will be described in detail in combination with the accompanying Figures 1-4 The application is further described in detail.

[0027] Example 1:

[0028] Example 1 of the application discloses a municipal sludge drying incinerator, referring to Figure 1 , comprising a furnace body 1 and a rotating shaft 2, the upper part of the furnace body 1 has a feeding channel 11, the lower part of the furnace body 1 has a discharging channel 12, and one side of the furnace body 1 is provided with a combustion nozzle 4. The lower part of the furnace body 1 is provided with a support plate 3, the support plate 3 is uniformly provided with ventilation holes, and the two sides of the support plate 3 are fixedly connected with rotating rods 31, the rotating rods 31 are rotationally connected to the inner wall of the furnace body 1, one of the rotating rods 31 penetrates to the outside of the furnace body 1, the combustion nozzle 4 is located above the support plate 3, the support plate 3 is provided with an avoiding groove for avoiding the combustion nozzle 4, the combustion nozzle 4 can be avoided when the support plate 3 rotates, and the avoiding groove is a conventional technical means in the art, which is not specifically described in the embodiment.

[0029] Referring to Figure 1 and Figure 2 , the rotating shaft 2 is arranged in the furnace body 1, the two ends of the rotating shaft 2 are rotationally connected to the furnace body 1, the furnace body 1 is fixedly connected with a driving motor 21, the output shaft of the driving motor 21 is coaxially fixedly connected to the rotating shaft 2, and the rotating shaft 2 is driven to rotate by the driving motor 21.

[0030] Referring to Figure 1 and Figure 2The rotating shaft 2 is provided with a plurality of stirring rods 22, the plurality of stirring rods 22 are arranged in parallel, the plurality of stirring rods 22 are arranged in a spaced manner along the axis direction of the rotating shaft 2, and the stirring rod 22 is fixedly connected to the rotating shaft 2. The inside of the stirring rod 22 is provided with a first cavity 221, the inside of the rotating shaft 2 is provided with a second cavity 23, the first cavity 221 is communicated with the second cavity 23, and the second cavity 23 is communicated with the outside of the air blower. A plurality of air injection holes 222 are formed in the two side surfaces of the stirring rod 22, and the air injection holes 222 are communicated with the first cavity 221.

[0031] With reference to Figure 2 And Figure 3 The stirring rod 22 is provided with a cleaning assembly 5, and the cleaning assembly 5 can clean the air injection hole 222. The cleaning assembly 5 is provided in two groups, and the two groups of cleaning assemblies 5 are distributed along the thickness direction of the stirring rod 22 to clean the air injection holes 222 on the two sides of the stirring rod 22 respectively. The cleaning assembly 5 comprises a sliding plate 51 and a dredging needle 52, the sliding plate 51 is located in the first cavity 221, the dredging needle 52 is fixedly connected to the sliding plate 51 and corresponds to the plurality of air injection holes 222 one by one, the side surface of the sliding plate 51 close to the corresponding air injection hole 222 is provided with a control rod 53, the control rod 53 is provided in two, the two control rods 53 are diagonally distributed, one end of the control rod 53 is connected to the sliding plate 51, a first through hole 223 is formed in the side wall of the first cavity 221, and the control rod 53 is slidably arranged in the first through hole 223. By sliding the sliding plate 51, the dredging needle 52 can enter the air injection hole 222.

[0032] With reference to Figure 2 And Figure 3 A second through hole corresponding to the control rod 53 is formed in the sliding plate 51, and one end of the control rod 53 close to the sliding plate 51 is rotatably arranged in the second through hole. The outer peripheral wall of one end of the control rod 53 close to the sliding plate 51 is fixedly connected with two limiting plates 532 coaxially, the sliding plate 51 is located between the two limiting plates 532, and the two limiting plates 532 abut against the two side surfaces of the sliding plate 51 respectively.

[0033] With reference to Figure 2 And Figure 3 The inner peripheral wall of one end of the first through hole 223 away from the sliding plate 51 is provided with an internal thread hole 224, and the outer peripheral wall of one end of the control rod 53 located outside the stirring rod 22 is provided with a threaded portion 531, which can be threadedly connected to the internal thread hole 224. By threadedly connecting the threaded portion 531 on the control rod 53 to the internal thread hole 224, the control rod 53 can be fixed.

[0034] The implementation principle of the embodiment 1 of the application is that the air injection hole 222 is arranged on the stirring rod 22, and the air injection hole 222 can inject air to the sludge while the stirring rod 22 stirs the dried sludge, some small and blocky sludge can be blown away through the air injection hole 222, so that the stirring efficiency is improved, and the incineration efficiency is improved.

[0035] Embodiment 2

[0036] The difference between the embodiment 2 and the embodiment 1 is that, referring to Figure 4 , the side of the stirring rod 22 away from the one end of the rotating shaft 2 is provided with the discharge port 24 communicated with the first cavity 221, the end surface of the stirring rod 22 is fixedly connected with the threaded ring 25, the threaded ring 25 is coaxially arranged with the discharge port, and the threaded ring 25 is threadedly connected with the cover body 26.

[0037] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A municipal sludge drying incinerator, characterized by: The utility model relates to a rotary kiln, which comprises a rotary shaft (2) and a rotary kiln body (1), wherein the upper part of the rotary kiln body (1) is provided with an inlet channel (11), the lower part of the rotary kiln body (1) is provided with an outlet channel (12), one side of the rotary kiln body (1) is provided with a combustion nozzle (4), the rotary shaft (2) is arranged in the rotary kiln body (1), both ends of the rotary shaft (2) are rotatably connected to the rotary kiln body (1), and a plurality of stirring rods (22) are arranged on the rotary shaft (2), wherein the stirring rods (22) are provided with a plurality of air injection holes (222).

2. A municipal sludge drying incinerator as claimed in claim 1, wherein: The stirring rods (22) are arranged in parallel, and the stirring rods (22) are arranged at intervals along the axis direction of the rotary shaft (2).

3. A municipal sludge drying incinerator as claimed in claim 2, wherein: The stirring rods (22) are provided with a first cavity (221) inside, the air injection holes (222) are arranged on the two side surfaces of the stirring rods (22), the air injection holes (222) are connected to the first cavity (221), and the first cavity (221) is connected to an external air blower.

4. A municipal sludge drying incinerator as claimed in claim 3, wherein: The stirring rods (22) are provided with a cleaning assembly (5), and the cleaning assembly (5) can clean the air injection holes (222).

5. A municipal sludge drying incinerator as claimed in claim 4, wherein: The cleaning assembly (5) comprises a sliding plate (51) and a dredging needle (52), the sliding plate (51) is arranged inside the first cavity (221) and is slidably connected to the stirring rods (22) along the thickness direction of the stirring rods (22), the dredging needle (52) is arranged on the sliding plate (51) and corresponds to the air injection holes (222) one by one, and the dredging needle (52) can enter the air injection holes (222) by sliding the sliding plate (51).

6. A municipal sludge drying incinerator according to claim 5, characterised in that: The sliding plate (51) is provided with a control rod (53), the stirring rods (22) are provided with a first through hole (223), the control rod (53) is slidably arranged in the first through hole (223) and extends out of the stirring rods (22), the inner peripheral wall of the first through hole (223) away from the sliding plate (51) is provided with an internal thread hole (224), the outer peripheral wall of the control rod (53) at one end thereof is provided with a threaded portion (531), and the threaded portion (531) is threadedly connected to the internal thread hole (224).

7. A municipal sludge drying incinerator according to claim 6, characterised in that: The coaxial end of the control rod (53) close to the sliding plate (51) is provided with two limiting plates (532), and the control rod (53) is rotatably arranged in the sliding plate (51), wherein the sliding plate (51) is located between the two limiting plates (532).

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