A deodorizing device for a biomass fermentation system

Abstract

The utility model discloses a kind of deodorization devices for biomass fermentation system, including washing tower, PH neutralization tank, demisting tank, temperature and humidity control box and degradation tank, the inside of washing tower is equipped with atomizing nozzle, one end of PH neutralization tank is equipped with semiconductor gas sensor, the inner top surface of PH neutralization tank is equipped with spray mechanism one, the inside of demisting tank is equipped with demister, the inside of temperature and humidity control box is equipped with temperature sensor, humidity sensor, electric heater and spray mechanism two in proper order, the inside of degradation tank is equipped with filler clamp plate, filler layer is equipped between the filler clamp plate, microbial membrane is attached on the filler layer, one side of degradation tank is equipped with liquid preparation tank, the inner top surface of degradation tank is equipped with spray mechanism three. The deodorization device for biomass fermentation system design is advanced, compact structure, convenient to use, reliable in operation, through the synergistic effect of multistage processing unit, high-efficiency purification to biomass fermentation odor is realized.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to a deodorization device for a biomass fermentation system. Background Technology

[0002] During biomass fermentation (such as biogas projects, composting, and kitchen waste treatment), various malodorous gases are produced due to the anaerobic or aerobic decomposition of microorganisms. The main components of these gases include ammonia, hydrogen sulfide, thiols, volatile fatty acids, indole, and skatole. These odorous gases not only pollute the environment but may also affect the health of workers. Deodorization devices are an indispensable environmental protection unit in modern biomass fermentation systems. The core function of deodorization devices is to collect and treat these malodorous gases, converting them into harmless or low-odor substances, thereby protecting the surrounding environment, ensuring the health of employees, and complying with industrial waste gas emission regulations.

[0003] Traditional deodorization devices often employ single treatment methods, failing to address the more complex odor components, resulting in poor deodorization effects and potential secondary pollution. Therefore, developing a highly efficient and environmentally friendly deodorization device for biomass fermentation systems is crucial. This invention addresses this problem by proposing an innovative solution aimed at effectively removing odors generated during biomass fermentation, improving the working environment, and protecting personnel health. Utility Model Content

[0004] The purpose of this invention is to provide a deodorization device for a biomass fermentation system to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deodorization device for a biomass fermentation system, comprising: A washing tower, wherein an atomizing nozzle is provided inside the washing tower, and a chemical liquid tank is provided on one side of the washing tower, and the chemical liquid tank is connected to the atomizing nozzle through a washing water pump and a washing water pipe; A pH neutralization chamber, wherein a semiconductor gas sensor is provided at one end of the pH neutralization chamber, and a spraying mechanism is provided on the inner top surface of the pH neutralization chamber; A demister box, wherein a demister is installed inside the demister box and a drain pipe is installed at the bottom of the demister box; A temperature and humidity control box, wherein the interior of the temperature and humidity control box is sequentially equipped with a temperature sensor, a humidity sensor, an electric heater, and a spray mechanism II; The degradation chamber has several packing plates inside, with a packing layer between two adjacent packing plates. A microbial film is attached to the packing layer. A liquid preparation tank is provided on one side of the degradation chamber, and a spraying mechanism is provided on the inner top surface of the degradation chamber. The top of the washing tower, the end of the pH neutralization chamber, the end of the demister, the end of the temperature and humidity control chamber, and the end of the degradation chamber are connected in sequence by air pipes.

[0006] Furthermore, the bottom of the washing tower is provided with a support and an air inlet pipe. The support is welded and fixed to the washing tower and bolted to the ground. The air inlet pipe is sealed and connected to the odor delivery pipe.

[0007] Furthermore, the spraying mechanism includes an acid solution tank, an alkali solution tank, and a pH neutralization water pump located at the top of the pH neutralization tank. The bottom of the acid solution tank and the alkali solution tank are equipped with solenoid valves. The inlet of the pH neutralization water pump is connected to the acid solution tank and the alkali solution tank respectively via a three-way connector. The outlet of the pH neutralization water pump is connected to a spray head located on the top surface inside the pH neutralization tank. The semiconductor gas sensor is electrically connected to the solenoid valves at the bottom of the acid solution tank and the alkali solution tank respectively.

[0008] Furthermore, the demister is a wire mesh demister, which is made of metal wires with a diameter of 0.1 to 0.3 mm woven and wound together.

[0009] Furthermore, the electric heater is vertically positioned on the side of the temperature and humidity control box near the air inlet and is electrically connected to the temperature sensor. The second spray mechanism is located on the inner top surface of the temperature and humidity control box and is electrically connected to the humidity sensor. The second spray mechanism includes a clean water tank, a humidifying water pump, and a second spray head.

[0010] Furthermore, the packing clamp is arranged vertically and has several through holes, and the packing layer is made of soil, compost or sawdust.

[0011] Furthermore, the liquid preparation tank is equipped with a nutrient solution injection pipe and a bacterial solution injection pipe, respectively.

[0012] Furthermore, the spraying mechanism three includes a biofilm pump, a biofilm pipe, and a spray head three. The inlet of the biofilm pump is connected to the liquid preparation tank, and the outlet of the biofilm pump is connected to the spray head three through the biofilm pipe. The spray head three is located on the inner top surface of the degradation tank and faces the packing layer.

[0013] Furthermore, the bottom of the degradation box is provided with several recessed drainage channels, and one end of the degradation box is provided with an air outlet.

[0014] The technical effects and advantages of this utility model are as follows: This deodorization device for biomass fermentation systems features an advanced design, compact structure, ease of use, and reliable operation. Through the synergistic effect of multiple treatment units, it achieves highly efficient purification of odorous gases from biomass fermentation. Specifically, the washing tower utilizes chemical liquid atomization spraying technology to quickly neutralize malodorous substances in the gas, thereby removing the odor; the pH neutralization chamber monitors the acidity and alkalinity of the washed gas in real time using a semiconductor gas sensor and adjusts the pH by spraying appropriate acid and alkaline solutions, ensuring the gas pH remains stable within a suitable range; the demister uses a wire mesh structure demister to effectively remove droplets and particulate matter entrained in the gas, ensuring that the gas entering the biological stage is almost free of harmful chemical reagent droplets, which is beneficial for protecting the biofilm; the temperature and humidity control box integrates electric heating and intelligent humidification systems to create optimal environmental conditions for microbial degradation; and the degradation chamber uses a highly efficient microbial biofilm attached to the packing layer to biodecompose residual organic matter, maintaining the activity of the microbial community with precise replenishment of nutrient solution and bacterial solution. Each unit is connected in series through air pipes to form a continuous and stable treatment process. The gas discharged from the outlet meets the national emission standards, effectively solving the technical problems of low treatment efficiency and easy secondary pollution of traditional deodorization devices. Attached Figure Description

[0015] Figure 1 This is a vertical sectional view of the present invention from the main viewing direction; Figure 2 This is a schematic diagram of the structure of the washing tower of this utility model; Figure 3 This is a vertical sectional view of the degradation box of this utility model from the right-hand side.

[0016] In the diagram: 100, Scrubbing tower; 101, Atomizing nozzle; 102, Chemical liquid tank; 103, Scrubbing water pump; 104, Scrubbing water pipe; 105, Support frame; 106, Air inlet pipe; 200, pH neutralization box; 201, Semiconductor gas sensor; 202, Spray mechanism one; 300, Demisting box; 301, Demister; 302, Drain pipe; 400, Temperature and humidity control box; 401, Temperature sensor; 402, Humidity sensor; 403, Electric heater; 404, Spray mechanism two; 500, Degradation box; 501, Packing clamp; 502, Packing layer; 503, Microbial film; 504, Liquid preparation tank; 5041, Nutrient solution injection pipe; 5042, Bacterial solution injection pipe; 505, Spray mechanism three; 506, Drainage channel; 507, Air outlet. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] This utility model provides, for example Figures 1-3 The deodorization device for a biomass fermentation system shown includes: A washing tower 100 is provided inside the washing tower 100, and a chemical liquid tank 102 is provided on one side of the washing tower 100. The chemical liquid tank 102 is connected to the atomizing nozzle 101 through a washing water pump 103 and a washing water pipe 104. A pH neutralization chamber 200 is provided with a semiconductor gas sensor 201 at one end and a spray mechanism 202 is provided on the inner top surface of the pH neutralization chamber 200. The demister box 300 has a demister 301 inside and a drain pipe 302 at the bottom. Temperature and humidity control box 400, the temperature and humidity control box 400 is provided with temperature sensor 401, humidity sensor 402, electric heater 403 and spray mechanism 404 in sequence inside; The degradation chamber 500 has several packing plates 501 inside, and a packing layer 502 is provided between two adjacent packing plates 501. A microbial film 503 is attached to the packing layer 502. A liquid preparation tank 504 is provided on one side of the degradation chamber 500, and a spraying mechanism 505 is provided on the inner top surface of the degradation chamber 500. The top of the washing tower 100, the end of the pH neutralization box 200, the end of the demister box 300, the end of the temperature and humidity control box 400, and the end of the degradation box 500 are connected in sequence by air pipes.

[0021] For example, see Figures 1-2 As shown, the bottom of the scrubbing tower 100 is provided with a support 105 and an air inlet pipe 106. The support 105 is welded and fixed to the scrubbing tower 100 and is fixed to the ground by bolts. The air inlet pipe 106 is sealed and connected to the odor delivery pipe.

[0022] In this technical solution, the support bracket 105 is used to support and fix the scrubbing tower 100, which not only helps to improve the structural stability of the scrubbing tower 100, but also facilitates the connection between the air inlet pipe 106 and the odor delivery pipe, so that the odor enters from the bottom of the scrubbing tower 100.

[0023] For example, see Figure 1 As shown, the spray mechanism 202 includes an acid solution tank, an alkaline solution tank, and a pH neutralization water pump located on the top of the pH neutralization tank 200. The bottom of the acid solution tank and the alkaline solution tank are equipped with solenoid valves. The inlet of the pH neutralization water pump is connected to the acid solution tank and the alkaline solution tank respectively through a three-way connector. The outlet of the pH neutralization water pump is connected to a spray head located on the top surface inside the pH neutralization tank 200. The semiconductor gas sensor 201 is electrically connected to the solenoid valves at the bottom of the acid solution tank and the alkaline solution tank respectively.

[0024] In this technical solution, when the semiconductor gas sensor 201 detects that the acidity or alkalinity of the odor entering the pH neutralization tank 200 exceeds the preset range, it will send an electrical signal to the solenoid valve at the bottom of the acid solution tank or alkaline solution tank. The corresponding solenoid valve will open, and the acid solution or alkaline solution will flow into the pH neutralization water pump. After being pressurized by the pH neutralization water pump, it will be delivered to the first spray head. The first spray head will evenly spray the acid or alkaline solution into the pH neutralization tank 200 to neutralize the odor and stabilize the pH value of the gas within a suitable range for microbial degradation.

[0025] For example, see Figure 1 As shown, the demister 301 is a wire mesh demister, which is made of metal wires with a diameter of 0.1 to 0.3 mm woven and wound together.

[0026] In this technical solution, when gas carrying droplets and particulate matter passes through the wire mesh demister, due to the change in gas flow direction and the interception effect of the wire mesh, the droplets and particulate matter will adhere to the wire mesh. Under the action of gravity, they will converge into larger droplets and drip to the bottom of the demister box 300 and be discharged through the drain pipe 302, thereby effectively removing droplets and particulate matter entrained in the gas and ensuring that the gas entering the temperature and humidity control box 400 is almost free of harmful chemical reagent droplets.

[0027] For example, see Figure 1 As shown, the electric heater 403 is vertically arranged on the side of the temperature and humidity control box 400 near the air inlet and is electrically connected to the temperature sensor 401. The second spray mechanism 404 is arranged on the inner top surface of the temperature and humidity control box 400 and is electrically connected to the humidity sensor 402. The second spray mechanism 404 includes a clean water tank, a humidifying water pump and a second spray head.

[0028] In this technical solution, the temperature sensor 401 and humidity sensor 402 inside the temperature and humidity control box 400 monitor the temperature and humidity inside the box in real time. When the temperature is lower than the set value, the temperature sensor 401 sends a signal to the electric heater 403, and the electric heater 403 starts to work to raise the temperature inside the box. When the humidity is lower than the set value, the humidity sensor 402 sends a signal to the humidifying water pump of the second spray mechanism 404. The humidifying water pump draws clean water from the clean water tank and sprays it inside the temperature and humidity control box 400 through the second spray head to increase the air humidity and create the best environmental conditions for microbial degradation.

[0029] For example, see Figure 1 and Figure 3 As shown, the packing clamp 501 is arranged vertically and has several through holes. The packing layer 502 is made of soil, compost or sawdust.

[0030] In this technical solution, the vertical arrangement and through-hole design of the packing clamp 501 not only increases the contact area between the packing layer 502 and the gas, but also facilitates the uniform distribution of gas in the packing layer 502 and improves the biodegradation efficiency. Soil, compost or sawdust are used as the packing layer 502 because these materials are rich in nutrients required by microorganisms, which can provide a good growth environment for microorganisms on the microbial film 503 and promote their decomposition of residual organic matter.

[0031] For example, see Figure 3 As shown, the liquid preparation tank 504 is equipped with a nutrient solution injection pipe 5041 and a bacterial solution injection pipe 5042.

[0032] In this technical solution, when the degradation tank 500 is working, the liquid preparation tank 504 accurately replenishes the nutrient solution and bacterial solution through the nutrient solution injection pipe 5041 and the bacterial solution injection pipe 5042 to maintain the activity of the microbial film 503 on the packing layer 502.

[0033] For example, see Figure 1 and Figure 3 As shown, the spraying mechanism 3 505 includes a biofilm pump, a biofilm pipe, and a spray head 3. The inlet of the biofilm pump is connected to the liquid preparation tank 504, and the outlet of the biofilm pump is connected to the spray head 3 through the biofilm pipe. The spray head 3 is located on the inner top surface of the degradation tank 500 and faces the packing layer 502.

[0034] In this technical solution, the biofilm pump of the spray mechanism 3 (505) draws a mixture of nutrient solution and bacterial solution from the mixing tank 504 and delivers it to the spray head 3 through the biofilm pipe. The spray head 3 evenly sprays the mixture onto the packing layer 502, providing sufficient nutrients for the microorganisms. After the odorous gas from the previous treatment unit enters the degradation tank 500, it comes into full contact with the microbial film 503 on the packing layer 502, and the microorganisms biodecompose the residual organic matter. The wastewater generated during the degradation process is discharged through the drain 506 at the bottom of the degradation tank 500, and the treated gas is discharged from the gas outlet 507.

[0035] For example, see Figure 1 and Figure 3 As shown, the bottom of the degradation chamber 500 is provided with several recessed drainage channels 506, and one end of the degradation chamber 500 is provided with an air outlet 507.

[0036] In this technical solution, the drainage channel 506 is designed to effectively collect excess liquid generated during the degradation process, preventing liquid accumulation in the degradation tank 500 and affecting the activity of the microbial film 503, thus ensuring the continuous and efficient biodegradation process. The gas outlet 507 serves as the emission channel for the treated gas that meets standards. Its location at one end of the degradation tank 500 facilitates smooth gas discharge. Furthermore, the gas outlet 507 can be equipped with a corresponding gas detection device to monitor various indicators of the discharged gas in real time, further ensuring that the emitted gas complies with relevant national environmental protection standards, providing reliable support for the stable operation of the biomass fermentation system and environmental protection.

[0037] Working principle: When this deodorizing device for biomass fermentation systems is in use, the odorous gas generated during the biomass fermentation process is first introduced into the scrubbing tower 100 through the air inlet pipe 106. At this time, the scrubbing water pump 103 starts, and the chemical liquid in the chemical liquid tank 102 is transported to the atomizing nozzle 101 through the scrubbing water pipe 104. The atomizing nozzle 101 sprays the chemical liquid in the form of a mist, which comes into full contact with the odorous gas. The effective components in the chemical liquid quickly neutralize the malodorous substances in the odorous gas, removing most of the odor. The gas coming out of the scrubbing tower 100 enters the pH neutralizer. In pH neutralization chamber 200, semiconductor gas sensor 201 monitors the pH of the gas in real time and transmits the signal to solenoid valves at the bottom of the acid and alkali solution tanks. If the gas is acidic, the solenoid valve controls the alkali solution tank to open, and the pH neutralization pump sprays the alkali solution onto the gas through a spray nozzle to adjust the gas pH. If the gas is alkaline, the acid solution tank opens to neutralize it, ensuring that the gas pH is stable within a suitable range. The gas treated by pH neutralization chamber 200 enters demister chamber 300, where a wire mesh demister uses metal wires... The woven mesh structure effectively intercepts droplets and particulate matter entrained in the gas, making the gas cleaner and preventing harmful chemical reagent droplets from entering the subsequent biological treatment stage, thus protecting the biofilm. The gas then enters the temperature and humidity control chamber 400. Temperature sensor 401 monitors the chamber temperature in real time. When the temperature falls below the suitable range, electric heater 403 starts heating. Humidity sensor 402 monitors the humidity. When the humidity is insufficient, a humidifying water pump sprays water from the clean water tank through spray nozzles to increase humidity, creating an optimal environment for microbial degradation. Conditions; Finally, the gas enters the degradation tank 500, where the microbial film 503 attached to the packing layer 502 biodecomposes the residual organic matter in the gas. At the same time, the liquid preparation tank 504 precisely replenishes the nutrient solution and bacterial solution through the nutrient solution injection pipe 5041 and the bacterial solution injection pipe 5042 to maintain the activity of the microbial community. After multi-stage treatment, the gas is discharged from the gas outlet 507, which meets the national emission standards. The drainage channel 506 with the recessed structure at the bottom of the degradation tank 500 is used to collect the wastewater generated during the treatment process, which is convenient for unified discharge and treatment.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A deodorization device for a biomass fermentation system, characterized in that, include: A washing tower (100) is provided inside the washing tower (100) with an atomizing nozzle (101) and a chemical liquid tank (102) on one side of the washing tower (100). The chemical liquid tank (102) is connected to the atomizing nozzle (101) through a washing water pump (103) and a washing water pipe (104). A pH neutralization chamber (200) is provided with a semiconductor gas sensor (201) at one end and a spray mechanism (202) is provided on the inner top surface of the pH neutralization chamber (200). A demister box (300) is provided inside the demister box (300) and a drain pipe (302) is provided at the bottom of the demister box (300). Temperature and humidity control box (400), wherein a temperature sensor (401), a humidity sensor (402), an electric heater (403) and a second spray mechanism (404) are sequentially arranged inside the temperature and humidity control box (400). A degradation chamber (500) is provided with several packing plates (501) inside. A packing layer (502) is provided between two adjacent packing plates (501). A microbial film (503) is attached to the packing layer (502). A liquid preparation tank (504) is provided on one side of the degradation chamber (500). A spraying mechanism (505) is provided on the inner top surface of the degradation chamber (500). The top of the washing tower (100), the end of the pH neutralization box (200), the end of the demister box (300), the end of the temperature and humidity control box (400), and the end of the degradation box (500) are connected in sequence by air pipes.

2. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The bottom of the washing tower (100) is provided with a bracket (105) and an air inlet pipe (106). The bracket (105) is welded and fixed to the washing tower (100) and fixed to the ground by bolts. The air inlet pipe (106) is sealed and connected to the odor delivery pipe.

3. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The spray mechanism (202) includes an acid solution tank, an alkaline solution tank, and a pH neutralization water pump located on the top of the pH neutralization tank (200). The bottom of the acid solution tank and the alkaline solution tank are equipped with solenoid valves. The inlet of the pH neutralization water pump is connected to the acid solution tank and the alkaline solution tank respectively through a three-way connector. The outlet of the pH neutralization water pump is connected to a spray head located on the top surface inside the pH neutralization tank (200). The semiconductor gas sensor (201) is electrically connected to the solenoid valves at the bottom of the acid solution tank and the alkaline solution tank respectively.

4. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The demister (301) is a wire mesh demister, which is made of metal wires with a diameter of 0.1 to 0.3 mm woven and wound together.

5. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The electric heater (403) is vertically positioned on the side of the temperature and humidity control box (400) near the air inlet and is electrically connected to the temperature sensor (401). The second spray mechanism (404) is positioned on the inner top surface of the temperature and humidity control box (400) and is electrically connected to the humidity sensor (402). The second spray mechanism (404) includes a clean water tank, a humidifying water pump, and a second spray head.

6. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The packing clamp (501) is arranged vertically and has several through holes. The packing layer (502) is made of soil, compost or sawdust.

7. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The liquid preparation tank (504) is equipped with a nutrient solution injection pipe (5041) and a bacterial solution injection pipe (5042).

8. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The spraying mechanism three (505) includes a biofilm pump, a biofilm pipe and a spray head three. The inlet of the biofilm pump is connected to the liquid preparation tank (504), and the outlet of the biofilm pump is connected to the spray head three through the biofilm pipe. The spray head three is located on the inner top surface of the degradation tank (500) and faces the packing layer (502).

9. The deodorization device for a biomass fermentation system according to claim 1, characterized in that: The bottom of the degradation box (500) is provided with several recessed drainage channels (506), and one end of the degradation box (500) is provided with an air outlet (507).

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