Biochar preparation safety device
By adopting the design of a water-sealed tank and exhaust pipeline in the biochar preparation process, the safety accident problem caused by air backflow in the carbonization kettle was solved, and the safety and pressure balance of the biochar preparation process were achieved.
Patent Information
- Application Number
- CN202520450649.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing carbonization reactors used for biochar preparation pose a risk of safety accidents due to air backflow.
A buffer device is adopted, including a water seal tank, a water seal pipeline and an exhaust pipeline. The water seal chamber is used to form a water seal to maintain the airtightness of the carbonization kettle, and the water vapor is discharged to the condensate collection device in time through the exhaust pipeline to balance the internal pressure.
This effectively avoids safety accidents caused by air backflow and improves the safety and reliability of the biochar preparation process.
Smart Images

Figure CN223879682U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of biochar preparation technology, and specifically relates to a biochar preparation safety device. BACKGROUND
[0002] Biochar is a kind of porous adsorption material with rich carbon, which is generated by high-temperature pyrolysis of biological organic materials, also known as biomass, in anoxic or anaerobic environment. Common biochar includes straw charcoal, charcoal, bamboo charcoal, rice husk charcoal, and fruit shell charcoal, which has the characteristics of clean and renewable, and can solve the problem of disposal of agricultural and forestry waste and realize resource utilization.
[0003] During the cotton straw carbonization process, the cotton straw needs to be placed in the carbonization kettle for high-temperature carbonization treatment. When the carbonization is completed, the cotton straw no longer produces high-temperature pyrolysis gas, resulting in a negative pressure inside the carbonization kettle. Therefore, the carbonization kettle used for biochar preparation has the problem of air backflow. Since the biochar with high temperature is extremely flammable, the carbonization kettle has the risk of causing safety accidents due to air backflow. SUMMARY
[0004] The utility model discloses a kind of safety devices, to overcome the technical problem of the prior art that the carbonization kettle used for biochar preparation has the risk of causing safety accidents due to air backflow.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] The utility model provides a kind of biochar preparation safety device, it is characterized in that, including buffer device, carbonization kettle and condensate water collection device, the buffer device includes water seal tank, and water seal pipeline, exhaust pipe and inlet are set on water seal tank.The water seal tank is internally provided with water seal cavity, one end of the water seal pipeline extends to the inside of the water seal cavity, and the other end is connected with the carbonization kettle.The region of the water seal tank away from the water seal cavity is provided with exhaust pipe, and the water seal tank is connected with the condensate water device by the exhaust pipe.
[0007] The utility model forms water seal by using one end of water seal pipeline immersed in water seal cavity, to keep the airtightness of carbonization kettle, avoid external air backflow to carbonization kettle, so as to solve the technical problem that the carbonization kettle used for biochar preparation has the risk of causing safety accidents due to air backflow. In addition, water vapor generated by the heat vaporization of water seal cavity by carbonization kettle can be discharged to condensate water collection device in time through exhaust pipe, to balance the pressure inside biochar preparation safety device, to avoid safety accidents.
[0008] Optionally, the water seal tank is provided with an observation window.
[0009] Optionally, the observation window is arranged at a position corresponding to the position of the water seal pipeline inside the water seal cavity.
[0010] Optionally, the water seal tank is provided with a water outlet.
[0011] Optionally, the water outlet is arranged at a position higher than the position of the water inlet.
[0012] Optionally, a circulating water pipeline is arranged between the water outlet and the water inlet.
[0013] Optionally, the water seal tank is provided with a blowdown port arranged at the bottom of the water seal tank, so as to facilitate daily maintenance of the water seal tank through the blowdown port.
[0014] Compared with the prior art, the water seal pipeline is extended to the inside of the water seal cavity at one end and connected to the carbonization kettle at the other end, the water seal cavity is used to form a water seal for the one end of the water seal pipeline, the carbonization kettle is kept airtight, and the outside air is prevented from flowing back to the carbonization kettle, so that the technical problem of the existing carbonization kettle for biochar preparation caused by air backflow is solved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The present utility model provides a perspective view of a biochar preparation safety device.
[0016] Figure 2 The present utility model provides a perspective view of a buffer device.
[0017] IDENTIFICATION OF DRAWINGS
[0018] 1, buffer device; 11, water seal tank; 111, water seal cavity; 12, water seal pipeline; 13, exhaust pipeline; 14, water inlet; 15, blowdown port; 16, observation window; 17, water outlet; 2, carbonization kettle; 3, condensed water collection device. DETAILED DESCRIPTION
[0019] To solve the above technical problems, the present utility model provides a biochar preparation safety device, and the technical scheme and examples of the present utility model are described in detail in combination with the drawings.
[0020] The present invention will now be described in detail through specific embodiments. These embodiments are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0021] like Figure 1 As shown, this utility model provides a safety device for biochar preparation, characterized by comprising a buffer device 1, a carbonization kettle 2, and a condensate collection device 3. The buffer device 1 includes a water seal tank 11, and a water seal pipe 12, an exhaust pipe 13, and a water inlet 14 disposed on the water seal tank 11. A water seal cavity 111 is provided inside the water seal tank 11. One end of the water seal pipe 12 extends into the water seal cavity 111, and the other end is connected to the carbonization kettle 2. An exhaust pipe 13 is disposed in the area of the water seal tank 11 away from the water seal cavity 111, and the water seal tank 11 is connected to the condensate collection device through the exhaust pipe 13.
[0022] This invention solves the technical problem of existing biochar preparation carbonization reactors (carbonization reactors) where one end of the water seal pipe 12 extends into the water seal cavity 111 and the other end connects to the carbonization reactor 2. This design utilizes the water seal cavity 111 submerging one end of the water seal pipe 12 to form a water seal, maintaining the airtightness of the carbonization reactor 2 and preventing external air from flowing back into it. Furthermore, the exhaust pipe 13 allows water vapor generated by the heat from the carbonization reactor 2 in the water seal cavity 111 to be promptly discharged to the condensate collection device 3, balancing the pressure inside the biochar preparation safety device and preventing accidents.
[0023] Optionally, a drain port 15 is provided on the water seal tank 11. The drain port 15 is located at the bottom of the water seal tank 11 so as to facilitate daily maintenance of the water seal tank 11 through the drain port 15.
[0024] Optionally, an observation window 16 is provided on the water seal tank 11. Specifically, the location of the observation window 16 corresponds to the location of the water seal pipeline 12 inside the water seal cavity 111. The observation window 16 allows the operator to obtain real-time information about the working status inside the water seal tank 11, so as to carry out subsequent operation procedures according to the actual situation.
[0025] Optionally, the water seal tank 11 is provided with a water outlet 17. Specifically, the water outlet 17 is positioned higher than the water inlet 14. The water outlet 17 can drain the water inside the water seal tank 11, preventing the water level inside the water seal tank 11 from becoming too high and causing a safety accident.
[0026] In addition, a circulating water path can be arranged between the water outlet 17 and the water inlet 14, so that the water flowing into the inside of the water seal tank 11 through the water inlet 14 is discharged through the water outlet 17, and then is again introduced into the inside of the water seal tank 11 through the water inlet 14 after being cooled or filtered. On the one hand, the water consumption can be reduced, the water can be saved, and the safety device can be more green and environmentally friendly. On the other hand, the water temperature in the inside of the water seal tank 11 can be reduced, and the safety performance of the water seal tank 11 and even the entire biochar preparation safety device can be improved.
[0027] Optionally, a sewage outlet 15 is arranged on the water seal tank 11, and the sewage outlet 15 is located at the bottom of the water seal tank 11.
[0028] The sewage outlet 15 is arranged at a position facilitating the discharge of sewage in the inside of the water seal tank 11, so that the cleaning and maintenance of the safety device are facilitated, and the safety device is simple to use and convenient to operate.
[0029] Optionally, an observation window 16 is arranged on the water seal tank 11.
[0030] During use, the operator can obtain the working state information of the inside of the water seal tank 11 in real time through the observation window 16, so that the operator can adjust the working mode of the safety device according to the obtained working state information.
[0031] Specifically, the observation window 16 can be composed of an observation opening arranged on the water seal tank 11 and an observation window installed on the observation opening, and the observation window can be a sealed window made of transparent materials such as glass and plastic.
[0032] The above description is only the preferred embodiment of the present application, and the above specific embodiments are not a limitation of the present application. Various modifications and changes can be made within the technical concept of the present application, and any modification, change or equivalent replacement made by those skilled in the art according to the above description shall fall within the scope of the present application.
Claims
1. A biochar production safety device, characterized by, Including buffer device (1), carbonization kettle (2) and condensate water collecting device (3), the buffer device (1) includes water seal tank (11), and water seal pipeline (12), exhaust pipeline (13) and water inlet (14) are arranged on the water seal tank (11); The water seal tank (11) is internally provided with a water seal cavity (111), one end of the water seal pipeline (12) extends into the water seal cavity (111), and the other end is connected with the carbonization kettle (2); The area of the water seal tank (11) away from the water seal cavity (111) is provided with an exhaust pipeline (13), and the water seal tank (11) is connected with the condensate water collecting device (3) through the exhaust pipeline (13).
2. The biochar production safety apparatus of claim 1, wherein, The water seal tank (11) is provided with an observation window (16).
3. The biochar production safety apparatus of claim 2, wherein, The setting position of the observation window (16) corresponds to the setting position of the water seal pipeline (12) in the water seal cavity (111).
4. The biochar production safety apparatus of claim 1, wherein, The water seal tank is provided with a water outlet (17).
5. The biochar production safety apparatus of claim 4, wherein, The setting position of the water outlet (17) is higher than that of the water inlet (14).
6. The biochar production safety apparatus of claim 5, wherein, A circulating water pipeline is arranged between the water outlet (17) and the water inlet (14).
7. The biochar production safety apparatus of claim 1, wherein, The water seal tank (11) is provided with a sewage outlet (15), and the sewage outlet (15) is located at the bottom of the water seal tank (11).