Air replacement device for garbage bin of garbage incineration power plant

Abstract

The utility model relates to an air replacement device for a garbage bin of a garbage incineration power plant, which solves the technical problem that the stacking fermentation efficiency of the garbage bin of the existing garbage incineration power plant is low, and is provided with an air pipeline communicated with hot air of a boiler, each set of jet flow heat exchange device is provided with a jet flow rotating sprayer and a sprayer direction adjusting device, the jet flow rotating sprayers are fixed to an air pipeline, the sprayer direction adjusting devices are provided with push-pull motors, and the push-pull motors are hinged to the jet flow rotating sprayers. The device can be widely applied to air replacement of the garbage bin of the garbage incineration power plant.

Description

Technical Field

[0001] The utility model relates to the field of garbage treatment, in particular to an air replacement device for a garbage storage bin in a waste incineration power plant. Background Art

[0002] After domestic garbage enters a waste incineration power plant, it first enters the garbage unloading platform and is unloaded into the garbage storage bin. The garbage needs to be continuously stacked by a garbage crane and fermented for 5 - 7 days at a certain temperature. After removing the leachate, the garbage with increased calorific value is sent to the feed hopper of the waste incinerator, falls to the feeding grate through a chute, and is then evenly sent into the incinerator by the feeding grate for combustion. When the temperature is relatively low in winter, the stacking and fermentation efficiency is low, and the garbage cannot be effectively fermented, resulting in low calorific value of the garbage, and auxiliary fuel needs to be added to ensure the normal operation of the waste incineration boiler. Summary of the Invention

[0003] In order to solve the technical problems of low stacking and fermentation efficiency in the garbage storage bin of the existing waste incineration power plant and the need to add auxiliary fuel in winter, the utility model provides an air replacement device for a garbage storage bin in a waste incineration power plant, which can improve the stacking and fermentation efficiency of garbage and reduce energy waste.

[0004] The utility model provides an air replacement device for a garbage storage bin in a waste incineration power plant, which is provided with an air duct communicated with the hot air of a boiler heat exchanger. The air duct is arranged inside or around the garbage storage bin. The air duct is evenly provided with jet heat exchange devices. Each group of the jet heat exchange devices is provided with a jet rotary nozzle and a nozzle direction adjusting device. The nozzle direction adjusting device is provided with a motor and an adjusting component. The motor controls the jet direction of the jet rotary nozzle through the adjusting component.

[0005] Preferably, the nozzle direction adjusting device is provided with a frame, the frame is fixed on the air duct, and the motor is fixedly arranged on the frame.

[0006] Preferably, when the air duct is arranged outside the garbage storage bin, a branch pipe is further arranged between the air duct and the jet heat exchange device, and the branch pipe penetrates through the wall of the garbage storage bin.

[0007] Preferably, an arched push rod is further arranged between the motor and the jet rotary nozzle. The motor is hinged to the arched push rod, and the arched push rod is hinged to the jet rotary nozzle.

[0008] Preferably, the air duct is further provided with a slideway bracket for guiding the arched push rod. One end of the slideway bracket is fixed on the air duct, and the other end is provided with a ring, and the arched push rod is sleeved in the ring.

[0009] Preferably, each group of the jet heat exchange devices is provided with two or more jet rotary nozzles.

[0010] Preferably, the motor is also electrically connected to a PLC and a camera.

[0011] Preferably, a protective fence for maintenance is also provided on the upper part of the air duct.

[0012] Advantages of the present utility model:

[0013] The present utility model is provided with multiple groups of jet rotary nozzles with adjustable directions, which directly aim at the surface of the garbage for air replacement, replacing the cold air on the surface of the garbage, increasing the temperature of the garbage bin, accelerating the fermentation of the garbage, improving the fermentation efficiency of the garbage stack, and improving the incineration efficiency of the garbage; the adjustment of the jet rotary nozzles adopts a motor design, which is convenient for realizing automatic operation, has a simple structure and reliable functions, and is connected with a PLC and a camera. By combining with intelligent video monitoring technology, it realizes automatic monitoring of the stacking direction of the garbage and automatic control of the direction change of the jet rotary nozzles. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the front view of the present utility model;

[0015] Figure 2 is a schematic structural view of the left view of the present utility model;

[0016] Figure 3 is a schematic diagram of the position of the present utility model in the garbage bin.

[0017] Description of the Reference Signs in the Drawings:

[0018] 1. Air duct; 2. Protective fence; 3. Frame; 4. Push-pull motor; 5. Slideway support; 6. Jet rotary nozzle; 7. Arch-shaped push-pull rod. Detailed Embodiments

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments, so that those skilled in the technical field to which the present utility model belongs can easily implement the present utility model.

[0020] Embodiment 1: As Figures 1-3As shown in the figure, the utility model is provided with an air duct 1 communicated with hot air. The air duct 1 is arranged in the upper middle part of the garbage bin. The hot air source of the air duct 1 can be the heat exchanger of the boiler or the hot air recovered from the waste heat of the boiler chimney. A plurality of groups of jet heat exchange devices are evenly distributed on the air duct 1. Each group of jet heat exchange devices is provided with a frame 3 and two jet rotary nozzles 6. The frame 3 is fixed on the air duct 1, and the jet rotary nozzle 6 is fixed on the air duct 1 and is internally communicated with the air duct 1. A push-pull motor 4 is fixedly arranged on the frame 3. The push-pull motor 4 is hinged with an arched push rod 7. The arched push rod 7 is also respectively connected with the two jet rotary nozzles 6. The jet rotary nozzle 6 is a spherical nozzle. The arched push rod 7 drives the jet rotary nozzle 6 to adjust the direction. When the push-pull motor 4 operates, the arched push rod 7 reciprocates up and down with the center of the cross section of the air duct 1 as the center, driving the direction of the jet rotary nozzle 6 to change.

[0021] The push-pull motor 4 can also be electrically connected with a PLC and a camera according to actual needs. By combining with intelligent video monitoring technology, it can automatically monitor the stacking direction of the garbage heap and automatically control the direction change of the jet rotary nozzle 6.

[0022] A slideway support 5 for guiding the arched push rod 7 is also arranged on the air duct 1. One end of the slideway support 5 is fixed on the air duct 1, and the other end is provided with a ring. The arched push rod 7 is sleeved in the ring for guiding the sliding direction of the arched push rod 7.

[0023] A protective fence 2 for maintenance is also arranged on the upper part of the air duct 1.

[0024] The using process of the utility model: The hot air of the boiler heat exchanger enters the jet rotary nozzle 6 through the air duct 1. After the jet rotary nozzle 6 is aligned with the garbage, it sprays hot air into the garbage bin. The hot air stirs the cold air in the garbage bin, and forcibly convects and exchanges heat with the cold air, increasing the temperature of the garbage bin, taking away the moisture on the surface of the garbage, and accelerating the drying of the garbage. When the garbage crane removes the garbage, the position of the stacked garbage changes. Manually or automatically start the push-pull motor 4, and the arched push rod 7 adjusts the spraying directions of the two jet rotary nozzles 6, and sprays the jet rotary nozzle 6 at the garbage again to increase the temperature of the garbage.

[0025] Embodiment 2: This embodiment is an improvement on Embodiment 1. The air duct 1 in Embodiment 1 is arranged in the garbage bin of the waste power plant, which may conflict with the garbage crane and cause damage. Therefore, the air duct 1 is arranged on the outer periphery of the lower middle part of the garbage bin. Holes are drilled in the wall of the garbage bin, branch pipelines are evenly distributed on the air duct 1, and the branch pipelines extend into the garbage bin and are communicated with the jet rotary nozzle 6. The jet rotary nozzle 6 is controlled by an independent control motor. The control motor rotates in the forward and reverse directions to control the spherical jet rotary nozzle 6 to adjust the direction. The control motor can also be electrically connected with a PLC and a camera according to actual needs. By combining with intelligent video monitoring technology, it can automatically monitor the stacking direction of the garbage heap and automatically control the direction change of the jet rotary nozzle 6.

[0026] The above is only for the preferred embodiments of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the scope defined by the claims of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An air replacement device for a waste storage bin in a waste incineration power plant, characterized in that There is an air duct connected to the hot air of the boiler heat exchanger. The air duct is arranged inside the refuse storage bin or around the periphery of the refuse storage bin. The air duct is evenly provided with jet heat exchange devices. Each group of the jet heat exchange devices is provided with a jet rotary nozzle and a nozzle direction adjusting device. The nozzle direction adjusting device is provided with a motor and an adjusting component, and the motor controls the jet direction of the jet rotary nozzle through the adjusting component.

2. The air replacement device for the waste storage bin of a waste incineration power plant according to claim 1, wherein The nozzle direction adjusting device is provided with a frame, the frame is fixed on the air duct, and the motor is fixedly arranged on the frame.

3. The air replacement device for the waste storage bin of a waste incineration power plant according to claim 1, wherein When the air duct is arranged outside the refuse storage bin, a branch pipe is further arranged between the air duct and the jet heat exchange device, and the branch pipe penetrates through the wall of the refuse storage bin.

4. The air replacement device for the waste storage bin of a waste incineration power plant according to any one of claims 1-3, characterized in that, An arched push-pull rod is further arranged between the motor and the jet rotary nozzle. The motor is hinged to the arched push-pull rod, and the arched push-pull rod is hinged to the jet rotary nozzle.

5. The air replacement device for the waste storage bin of a waste incineration power plant according to claim 4, characterized in that, A slideway bracket for guiding the arched push-pull rod is further arranged on the air duct. One end of the slideway bracket is fixed on the air duct, and the other end is provided with a circular ring, and the arched push-pull rod is sleeved inside the circular ring.

6. The air replacement device for the waste storage bin of a waste incineration power plant according to claim 1 or 5, wherein Each group of the jet heat exchange devices is provided with two or more of the jet rotary nozzles.

7. The air replacement device for the waste storage bin of a waste incineration power plant according to claim 6, characterized in that, The motor is also electrically connected to a PLC and a camera.

8. The air replacement device for the waste storage bin of a waste incineration power plant according to claim 1, characterized in that, A protective fence for maintenance is further arranged on the upper part of the air duct.

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