Odor monitoring device in whole garbage fermentation process

Abstract

The scheme discloses an odor monitoring device in the whole garbage fermentation process in the field of environmental protection, and the odor monitoring device comprises a garbage fermentation tank, and also comprises an air extracting pump which is communicated with the fermentation tank and is used for generating negative pressure in the garbage fermentation tank and extracting air in the garbage fermentation tank; and the odor monitoring system is used for monitoring the concentration of odor in the air extracted by the air extracting pump in real time. According to the scheme, the odor monitoring system is arranged in the garbage fermentation device, so that the range of monitoring odor components is wide, the problem of single detection component in the prior art is avoided, and the odor concentration change condition in the garbage fermentation device is monitored in real time.

Description

Technical Field

[0001] The invention belongs to the field of environmental protection, and particularly relates to a device for monitoring odor during the whole process of garbage fermentation. Background Art

[0002] Garbage-to-energy is a form of power generation that converts solid waste into electricity. It is mainly divided into two categories: waste incineration power generation and landfill gas power generation. Among them, incineration power generation is to incinerate solid waste with high combustion value at high temperature (which also completely eliminates pathogenic organisms and corrosive organic matter). The heat energy generated during high-temperature incineration (the smoke generated is treated) is converted into high-temperature steam, which drives the turbine to rotate and the generator to generate electricity. Landfill gas power generation is to ferment and anaerobically treat organic matter that cannot be burned, and finally dry and desulfurize it to produce a gas called methane, also called biogas. After combustion, the heat energy is converted into steam, which drives the turbine to rotate and drives the generator to generate electricity.

[0003] Among them, the process of incineration power generation is to store the garbage transported to the power plant in a garbage pool for fermentation for 7 days. After the garbage leachate is discharged, the garbage is dehydrated to a certain extent and then transferred to the incinerator for high-temperature incineration. An alarm device will be arranged in the garbage pool, and the corresponding sensor will be connected through electrical signals. The sensor detects the concentration of odors and harmful gases such as ammonia NH3 and methane CH4 generated in the garbage pool. When the upper limit is reached, the electrical signal will be transmitted to the alarm device, and an alarm will be issued to remind the staff to take safety measures. However, this is only a local detection and cannot reflect the precise changes in the odor concentration inside the garbage pool, which poses a potential safety risk. Summary of the invention

[0004] The present invention aims to provide a device for monitoring odor during the whole process of garbage fermentation, which can monitor the change of odor concentration in the garbage fermentation device in real time.

[0005] A garbage fermentation whole process odor monitoring device in this scheme includes a garbage fermentation tank and also includes:

[0006] Air pump: The air pump is connected to the fermentation tank and is used to generate negative pressure in the garbage fermentation tank to extract the air in the garbage fermentation tank;

[0007] Odor monitoring system: used to monitor the concentration of odor in the air extracted by the vacuum pump in real time.

[0008] Furthermore, the odor monitoring system includes a sampler for collecting air extracted by the vacuum pump; an odor sensor connected to the sampler for real-time monitoring of the concentration of odor in the air collected by the sampler.

[0009] Furthermore, the odor monitoring system also includes a display for displaying the detection value of the odor sensor.

[0010] Furthermore, the odor monitoring system also includes an alarm, which is electrically connected to the odor sensor. When the concentration detected by the odor sensor is greater than a set value, an alarm message is sent to the alarm.

[0011] Furthermore, a heating layer is provided on the outer ring of the garbage fermentation tank, and the heating layer is used to maintain the internal temperature of the garbage fermentation tank at 40°C to 60°C.

[0012] Furthermore, the heating layer is a water bath heating layer.

[0013] Furthermore, the water bath heating layer is provided with a temperature controller, and the garbage fermentation tank is provided with a temperature sensor, which is electrically connected to the temperature controller. When the water temperature is lower than the minimum temperature setting value, the water is automatically heated, and when the water temperature is higher than the maximum temperature setting value, the power is automatically cut off.

[0014] Furthermore, a hollow infiltration layer is provided at the bottom of the garbage fermentation tank, and a sewage outlet is provided at the bottom of the garbage fermentation tank below the infiltration layer.

[0015] The beneficial technical effects of the present invention are:

[0016] 1. This solution installs an odor monitoring system in the garbage fermentation device to monitor a wide range of odor components, avoiding the problem of single component detection in the prior art, and monitors the changes in odor concentration in the garbage fermentation device in real time.

[0017] 2. Use the vacuum pump to generate negative pressure to extract the odor and maintain clean air in the working environment.

[0018] 3. When the detected odor concentration exceeds the threshold, the device will sound an alarm to prompt the staff to take safety precautions.

[0019] 4. Use water bath to heat the garbage fermentation tank to promote full fermentation of garbage, discharge more leachate and odor produced by fermentation, and help increase the capacity of garbage combustion power generation.

[0020] 5. The leachate produced by garbage fermentation is discharged from the permeation layer in time and discharged from the sewage outlet at the bottom of the garbage fermentation tank in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic structural diagram of a device for monitoring odor during the entire process of garbage fermentation. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The figure marks in the drawings of the specification include: water bath heating layer 1, fixed bracket 2, temperature display 3, humidity display 4, odor sensor 5, vacuum pump controller 6, water pump controller 7, garbage fermentation tank 8, sewage outlet 9.

[0024] The embodiment is basically as shown in the attached Figure 1 As shown: a garbage fermentation whole process odor monitoring device includes a water bath heating layer 1, a garbage fermentation tank 8 is installed in the water bath heating layer 1 through a fixed bracket 2, the garbage fermentation tank 8 is provided with a humidity display 4, the bottom of the garbage fermentation tank 8 is provided with a hollow penetration layer, and the bottom of the garbage fermentation tank 8 below the penetration layer is provided with a sewage outlet 9.

[0025] Suction pump: The suction pump is connected to the fermentation tank and is used to generate negative pressure in the garbage fermentation tank 8 to extract the air in the garbage fermentation tank 8; to control the odor concentration in the fermentation bin, the suction pump is connected to the suction pump controller 6.

[0026] Odor monitoring system: used to monitor the concentration of odor in the air extracted by the vacuum pump in real time. The odor monitoring system includes a sampler for collecting the air extracted by the vacuum pump; an odor sensor 5 connected to the sampler for real-time monitoring of the concentration of odor in the air collected by the sampler; a display for displaying the detection value of the odor sensor 5; and an alarm, which is electrically connected to the odor sensor 5 and sends an alarm message to the alarm when the concentration detected by the odor sensor 5 is greater than the set value.

[0027] The outer ring of the garbage fermentation tank 8 is provided with a water bath heating layer 1, and the water bath heating layer 1 is provided with a thermocouple, which is used to maintain the internal temperature of the garbage fermentation tank 8 at 40°C to 60°C. The water bath heating layer 1 is provided with a temperature controller, and the garbage fermentation tank 8 is provided with a temperature probe and a temperature sensor connected to the temperature probe. The temperature sensor is connected to the temperature controller by an electrical signal. When the water temperature is lower than the minimum temperature setting value, it is automatically heated, and when it is higher than the maximum temperature setting value, it is automatically powered off. The temperature display 3 is used to display the detected temperature.

[0028] The water bath heating layer 1 is provided with a water circulation system, including a water pump and a circulation pipeline, for controlling the water circulation in the water bath pot, for the precise temperature control system to control the temperature; the water circulation flow rate can be controlled to achieve a uniform temperature in the water bath heating layer 1. The water pump is connected to a water pump controller 7.

Claims

1. A garbage fermentation whole process odor monitoring device, comprising a garbage fermentation tank, characterized in that: Also includes: Air pump: The air pump is connected to the fermentation tank and is used to generate negative pressure in the garbage fermentation tank to extract the air in the garbage fermentation tank; Odor monitoring system: used to monitor the concentration of odor in the air extracted by the vacuum pump in real time.

2. The device for monitoring odor during the whole process of garbage fermentation according to claim 1, characterized in that: The odor monitoring system comprises a sampler for collecting air extracted by an air pump; and an odor sensor connected to the sampler for real-time monitoring of the concentration of odor in the air collected by the sampler.

3. The device for monitoring odor during the whole process of garbage fermentation according to claim 2, characterized in that: The odor monitoring system also includes a display for displaying the detection value of the odor sensor.

4. The device for monitoring odor during the whole process of garbage fermentation according to claim 3, characterized in that: The odor monitoring system also includes an alarm, which is electrically connected to the odor sensor. When the concentration detected by the odor sensor is greater than a set value, an alarm message is sent to the alarm.

5. A garbage fermentation whole process odor monitoring device according to any one of claims 1 to 4, characterized in that: The outer ring of the garbage fermentation tank is provided with a heating layer, and the heating layer is used to maintain the internal temperature of the garbage fermentation tank at 40°C to 60°C.

6. The device for monitoring odor during the whole process of garbage fermentation according to claim 5, characterized in that: The heating layer is a water bath heating layer.

7. The device for monitoring odor during the whole process of garbage fermentation according to claim 6, characterized in that: The water bath heating layer is provided with a temperature controller, and the garbage fermentation tank is provided with a temperature sensor, which is connected with the temperature controller by electrical signals. When the water temperature is lower than the minimum temperature setting value, the water is automatically heated, and when the water temperature is higher than the maximum temperature setting value, the water is automatically powered off.

8. The device for monitoring odor during the whole process of garbage fermentation according to claim 7, characterized in that: A hollow infiltration layer is arranged at the bottom of the garbage fermentation tank, and a sewage outlet is arranged at the bottom of the garbage fermentation tank below the infiltration layer.

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