Modular carbonization system

Abstract

The utility model relates to the technical field of carbonization equipment, in particular to a modularized carbonization system, which comprises a carbonization furnace, a smoke purification device and a water circulation device, the carbonization furnace comprises a box body, at least one smoke discharge groove which is arranged at the bottom of the box body in an outward protruding manner, and a heat insulation fireproof layer which is laid on the inner wall of the box body, a heat insulation fireproof layer is not laid in the smoke discharge groove, fireproof bricks are laid above the smoke discharge groove, a gap is formed between every two adjacent fireproof bricks, and a smoke discharge pipe communicated with the smoke discharge groove is arranged at one end of the box body; the output end of the water inlet pipe is lower than the heat insulation fireproof layer at the bottom of the box body; the output end of the smoke purification device is communicated with the smoke exhaust pipe through a quick connecting pipe; the water circulation device is communicated with the flue gas purification device and the water inlet pipe through pipelines. The modularized carbonization system is convenient to quickly assemble and favorable for discharging flue gas.

Description

Technical Field

[0001] This utility model relates to the field of carbonization equipment technology, specifically to a modular carbonization system. Background Technology

[0002] Currently, after crop production, such as sugarcane and rice cultivation, the most common method for dealing with the residue after harvest, besides traditional composting, is on-site burning. However, on-site burning easily produces large amounts of smoke and dust, causing significant pollution, so this method is generally prohibited. In addition to the above methods, more economical treatment methods include crushing and returning the crop residue to the field and centralized incineration. While crushing and returning the crop residue to the field is simple to operate, the crushed crop branches are sprayed directly onto the field without undergoing composting, which can easily alter soil properties and form a layer of incompletely decomposed humus in the soil. This not only affects the normal growth of the next season's crops but also easily breeds pathogens. Centralized incineration requires a large amount of manpower and resources, as well as transportation, resulting in high operating costs.

[0003] In response to the above situation, patent CN112521966A discloses a high-efficiency and environmentally friendly multi-pot mobile plant carbonization furnace. This furnace can convert waste branches, leaves, sawdust, farm straw, crop branches and leaves, and residues into biochar, realizing the reuse of solid waste. Simultaneously, the carbonization process purifies flue gas and recycles water, saving resources and preventing air pollution. However, this patent uses a vehicle-mounted structure, with the carbonization furnace directly installed on the first vehicle body. While this arrangement facilitates the transfer of the furnace, it also makes the first vehicle body susceptible to damage during use, affecting its lifespan. Furthermore, the patent does not disclose the specific internal structure of the carbonization furnace, leaving those skilled in the art unable to understand its working principle, and the internal flue gas is difficult to effectively absorb and treat by the flue gas purification system. Utility Model Content

[0004] In order to overcome one of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular carbonization system, which is easy to assemble quickly and facilitates flue gas discharge.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A modular carbonization system includes a carbonization furnace, a flue gas purification device, and a water circulation device. The carbonization furnace includes a box body, at least one flue gas trough protruding outwards from the bottom of the box body, and a heat-insulating and fireproof layer lining the inner wall of the box body. The flue gas trough is not lined with a heat-insulating and fireproof layer, and fireproof bricks are laid above the flue gas trough, with gaps between adjacent fireproof bricks. One end of the box body is provided with a flue gas pipe connecting to the flue gas trough. A water inlet pipe is connected to the bottom of the box body, and the output end of the water inlet pipe is lower than the heat-insulating and fireproof layer at the bottom of the box body. The output end of the flue gas purification device is connected to the flue gas pipe via a quick-connect pipe. The water circulation device is connected to the flue gas purification device and the water inlet pipe via a pipe.

[0007] Furthermore, the bottom of the housing is inclined at one end with a slope, the smoke exhaust trough is arranged along the slope direction of the slope, the heat insulation and fireproof layer at the bottom is horizontally installed on the slope, and the water inlet pipe and the smoke exhaust pipe are both arranged at the end of the housing located at the bottom of the slope.

[0008] Furthermore, the heat-insulating and fireproof layer set on the side wall of the box is formed by fireproof bricks, and the heat-insulating and fireproof layer set on the bottom of the box is laid with fireproof bricks.

[0009] Furthermore, the flue gas purification device includes a flue gas filter, a water scrubbing tower, a spray tower, a tar filter, a negative pressure fan, and a pressure regulating tower connected in sequence via pipelines. The output end of the water circulation device is connected to the water scrubbing tower and the spray tower via pipelines respectively. The input end of the flue gas filter is connected to the output end of the quick-connect pipe. An exhaust chimney is provided at the top of the pressure regulating tower. The drainage ends of the water scrubbing tower and the spray tower are connected to the input end of the water circulation device.

[0010] Furthermore, connecting flanges are installed on the pipelines between the flue gas filter and the water washing tower, between the water washing tower and the spray tower, and between the spray tower and the tar filter.

[0011] Furthermore, the flue gas purification device also includes a base, on which the water washing tower, spray tower, negative pressure fan and pressure regulating tower are all installed.

[0012] Furthermore, the water circulation device includes a water pump, a water tank, and a water supply pipe. The water pump is installed on the water supply pipe. One end of the water supply pipe is connected to the water tank, and the other end is connected to the water washing tower, the spray tower, and the inlet pipe. The water washing tower, the spray tower, the negative pressure fan, and the pressure regulating tower are all installed on the water tank. The bottom of the water washing tower and the spray tower are directly connected to the water tank.

[0013] Furthermore, at least two water tanks are provided, and the two water tanks are connected by a connecting pipe. The connecting pipe is provided with a connecting flange. The water washing tower and the spray tower are both installed on the same water tank. The water inlet pipe is connected to the water tank on which the water washing tower is installed, and the water inlet end of the water supply pipe is located on the other water tank.

[0014] Furthermore, the water supply pipe is connected to a spray pipe, which is installed on the top side wall of the box.

[0015] Furthermore, a sedimentation tank is provided at the outlet of the water tank on which the washing tower is installed, and a sewage pipe for connecting the sedimentation tank is provided on the tank body.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model presents a modular carbonization system that modularizes the carbonization furnace, flue gas purification device, and water circulation device, improving transportability and facilitating on-site assembly, thus enhancing portability. Furthermore, the inner wall of the carbonization furnace is lined with a heat-insulating and fireproof layer, effectively maintaining the furnace temperature, reducing heat loss, improving carbonization efficiency, and protecting the enclosure, extending its service life. The bottom of the carbonization furnace features a smoke exhaust trough with a downward suction method, facilitating flue gas collection and preventing overflow. Fireproof bricks also prevent ash from falling into the exhaust trough and blocking it, thus protecting the trough and ensuring proper smoke exhaust – a dual benefit. Additionally, a water inlet pipe is installed at the bottom of the enclosure. This design utilizes water to protect the bottom of the enclosure, and the water evaporates during combustion, providing steam to cool the burning biomass and prevent further combustion, ensuring optimal carbonization.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the carbonization furnace in an embodiment of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of an embodiment of the present utility model.

[0022] Explanation of icon numbers:

[0023] 10. Carbonization furnace, 11. Box body, 12. Smoke exhaust trough, 13. Heat insulation and fireproof layer, 14. Fireproof brick, 15. Smoke exhaust pipe, 16. Water inlet pipe, 17. Slope, 20. Flue gas purification device, 21. Pipeline, 22. Flue gas filter, 23. Water washing tower, 24. Spray tower, 25. Tar filter, 26. Negative pressure fan, 27. Pressure regulating tower, 28. Quick connection pipe, 29. Exhaust chimney, 30. Water circulation device, 32. Water pump, 33. Water tank, 34. Water supply pipe, 35. Connecting pipe, 36. Spray pipe, 37. Sedimentation tank, 38. Sewage pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] Reference Figures 1 to 3 The modular carbonization system shown includes a carbonization furnace 10, a flue gas purification device 20, and a water circulation device 30. The carbonization furnace 10 includes a housing 11, at least one outwardly protruding exhaust trough 12 located on the bottom of the housing 11, and a heat-insulating and fireproof layer 13 lining the inner wall of the housing 11. The exhaust trough 12 is not lined with the heat-insulating and fireproof layer 13, and fireproof bricks 14 are laid on top of the exhaust trough 12, with gaps between adjacent fireproof bricks 14. One end of the housing 11 is provided with an exhaust pipe 15 connecting to the exhaust trough 12. The bottom of the housing 11 is connected to a water inlet pipe 16, and the output end of the water inlet pipe 16 is lower than the heat-insulating and fireproof layer 13 at the bottom of the housing 11. The output end of the flue gas purification device 20 is connected to the exhaust pipe 15 via a quick-connect pipe 28. The water circulation device 30 is connected to the flue gas purification device 20 and the water inlet pipe 16 via a pipe 31.

[0026] In this application, the carbonization furnace 10, the flue gas purification device 20, and the water circulation device 30 can be configured as individual modules for easy hoisting, or they can be integrated, depending on the actual usage requirements. The flue gas purification device 20 and the water circulation device 30 can be powered by a conventional diesel generator or battery, offering high portability. Furthermore, the carbonization furnace 10 is equipped with lifting lugs for easy hoisting by external lifting equipment.

[0027] This modular carbonization system integrates the carbonization furnace 10, flue gas purification device 20, and water circulation device 30 into a modular design, improving its transportability and facilitating on-site assembly, thus enhancing its portability. Furthermore, the inner wall of the carbonization furnace 10 is lined with a heat-insulating and fireproof layer 13, effectively maintaining the furnace's temperature, reducing heat loss, improving carbonization efficiency, and protecting the casing 11, extending its service life. The bottom of the carbonization furnace 10 features a smoke exhaust trough 12 with a downward suction method, facilitating flue gas collection and preventing overflow. Simultaneously, fireproof bricks 14 prevent carbonized ash from falling into the smoke exhaust trough 12 and blocking its external exhaust, thus protecting the trough 12 while ensuring proper smoke extraction – a dual benefit. In addition, a water inlet pipe 16 is installed at the bottom of the box 11. This design uses water to protect the bottom of the box 11. At the same time, the water evaporates when it is heated during combustion in the carbonization furnace 10, providing water vapor and cooling the burning biomass to prevent it from burning normally and ensure the carbonization effect.

[0028] See Figures 1 to 2 In one embodiment of this application, to facilitate drainage later, the bottom of the housing 11 is inclined with a slope 17 at one end. The smoke exhaust trough 12 is arranged along the slope direction of the slope 17. The heat insulation and fireproof layer 13 at the bottom is horizontally installed on the slope 17. The water inlet pipe 16 and the smoke exhaust pipe 15 are both located at the end of the housing 11 located at the bottom of the slope 17. The main purpose of designing the slope 17 is to facilitate drainage and also to facilitate later cleaning.

[0029] To facilitate heat insulation and extend service life, in the improved embodiment described above, the heat-insulating and fireproof layer 13 on the side wall of the housing 11 is formed by fireproof bricks 14. This structural design better prevents the fireproof bricks 14 on the housing 11 from falling off, thus providing a fixing function. The heat-insulating and fireproof layer 13 on the bottom of the housing 11 is also made of fireproof bricks 14. Its loose design facilitates the flow of smoke and also makes it easy to replace later.

[0030] See Figures 1 to 3In one embodiment of this application, to facilitate flue gas treatment, the flue gas purification device 20 includes a flue gas filter 22, a water scrubbing tower 23, a spray tower 24, a tar filter 25, a negative pressure fan 26, and a pressure regulating tower 27, which are sequentially connected via a pipeline 21. The output end of the water circulation device 30 is connected to the water scrubbing tower 23 and the spray tower 24 via a pipeline 31. The input end of the flue gas filter 22 is connected to the output end of the quick-connect pipe 28. The top of the pressure regulating tower 27 is equipped with an exhaust chimney 29. The drainage ends of the water scrubbing tower 23 and the spray tower 24 are connected to the input end of the water circulation device 30. The flue gas filter 22 contains a filter screen, the main purpose of which is to filter soot from the flue gas, preventing excessive soot from entering the water scrubbing tower 23 and the spray tower 24, which could cause sludge deposition and affect their use. Furthermore, the tar filter 25 has a conventional structure and will not be described in detail here. The water scrubbing tower 23 is essentially a water tower structure. Flue gas enters from the bottom and exits from the top of the tower, which is filled with water. As the flue gas passes through the tower, dust particles are absorbed by the water, thus removing most of the dust. The spray tower 24 uses water mist spraying to maximize dust removal. The pressure regulating tower 27 primarily functions to stabilize the internal pressure of the entire flue gas purification device 20, ensuring proper flue gas treatment.

[0031] Furthermore, to facilitate subsequent handling, connecting flanges are provided on the pipelines 21 between the flue gas filter 22 and the water washing tower 23, between the water washing tower 23 and the spray tower 24, and between the spray tower 24 and the tar filter 25. This structural design is mainly for easy disassembly, handling, and transfer, facilitating subsequent rapid connection. Of course, in some embodiments, to reduce the number of connecting flanges, connecting flanges can be provided on the pipelines 21 between the flue gas filter 22 and the water washing tower 23, and between the spray tower 24 and the tar filter 25.

[0032] Furthermore, in the above embodiments, for ease of later handling, the flue gas purification device 20 also includes a base, on which the water washing tower 23, spray tower 24, negative pressure fan 26, and pressure regulating tower 27 are all mounted. Of course, in some embodiments, multiple bases can be provided; this application preferably uses two bases to facilitate hoisting. The water washing tower 23 and spray tower 24 can be simultaneously mounted on the same base, while the negative pressure fan 26 and pressure regulating tower 27 are mounted separately on the same base.

[0033] See Figure 1 and Figure 3In one embodiment of this application, in order to realize the recycling of water, the water circulation device 30 includes a water pump 32, a water tank 33, and a water supply pipe 34. The water pump 32 is installed on the water supply pipe 34. One end of the water supply pipe 34 is connected to the water tank 33, and the other end is connected to the water washing tower 23, the spray tower 24, and the inlet pipe 16. The water washing tower 23, the spray tower 24, the negative pressure fan 26, and the pressure regulating tower 27 are all installed on the water tank 33. The bottom of the water washing tower 23 and the spray tower 24 are directly connected to the water tank 33. This design can directly return the water used by the water washing tower 23 and the spray tower 24 to the water tank 33, thereby reducing the design of the pipeline and simplifying the structure.

[0034] In the above embodiments, to facilitate hoisting and transportation, in one embodiment of this application, at least two water tanks 33 are provided, and the two water tanks 33 are connected by a connecting pipe 35. The connecting pipe 35 is provided with a connecting flange. The water washing tower 23 and the spray tower 24 are both installed on the same water tank 33. The water inlet pipe 16 is connected to the water tank 33 on which the water washing tower 23 is installed, and the water inlet end of the water supply pipe 34 is located on the other water tank 33. This design facilitates disassembly and transportation by workers. The two water tanks 33 can be connected by the connecting pipe 35, which allows for quick assembly and disassembly.

[0035] See Figure 3 In order to effectively collect sludge, in one embodiment of this application, a sedimentation tank 37 is provided at the outlet of the water tank 33 on which the washing tower 23 is installed, and a sewage pipe 38 for connecting the sedimentation tank 37 is provided on the tank body 11, wherein the sewage pipe 38 is designed with a control valve to facilitate opening and closing for sewage discharge.

[0036] In actual use, when biomass is carbonized inside the box 11, the upper biomass will gradually be dried or even ignited when baked by the lower biomass. Ignition of the upper biomass will inevitably lead to normal combustion and turn it into carbon. Therefore, in one embodiment of this application, the water supply pipe 34 is connected to a spray pipe 36, which is set on the top side wall of the box 11. During normal combustion and carbonization, the operator only needs to turn on the switch on the spray pipe 36 to cool down the upper biomass of the box 10 and prevent the upper biomass from burning normally so as to carbonize it.

[0037] In fact, during the normal biomass carbonization process, in order to prevent the upper layer of biomass from coming into excessive contact with air and burning normally, a biochar layer is placed above the upper layer of biomass in this application, which serves to isolate it from the air.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A modular carbonization system, characterized in that, include A carbonization furnace includes a housing, at least one outwardly protruding flue trough located at the bottom of the housing, and a heat-insulating and fireproof layer lining the inner wall of the housing. The flue trough is not lined with a heat-insulating and fireproof layer, and fireproof bricks are laid above the flue trough. There is a gap between adjacent fireproof bricks. One end of the housing is provided with a flue pipe connecting to the flue trough. The bottom of the housing is connected to a water inlet pipe, the output end of which is lower than the heat-insulating and fireproof layer at the bottom of the housing. The flue gas purification device has its output end connected to the exhaust pipe via a quick-connect fitting. A water circulation device is connected to the flue gas purification device and the water inlet pipe via a pipeline.

2. The modular carbonization system according to claim 1, characterized in that: The bottom of the enclosure is inclined at one end with a slope, the smoke exhaust trough is arranged along the slope direction, the heat insulation and fireproof layer at the bottom is horizontally installed on the slope, and the water inlet pipe and the smoke exhaust pipe are both arranged at the end of the enclosure located at the bottom of the slope.

3. The modular carbonization system according to claim 2, characterized in that: The heat-insulating and fireproof layer installed on the side wall of the enclosure is formed by fireproof bricks, and the heat-insulating and fireproof layer installed on the bottom of the enclosure is also made of fireproof bricks.

4. The modular carbonization system according to claim 1, characterized in that: The flue gas purification device includes a flue gas filter, a water scrubbing tower, a spray tower, a tar filter, a negative pressure fan, and a pressure regulating tower, which are connected in sequence through pipelines. The output end of the water circulation device is connected to the water scrubbing tower and the spray tower through pipelines respectively. The input end of the flue gas filter is connected to the output end of the quick-connect pipe. The top of the pressure regulating tower is equipped with an exhaust chimney. The drainage ends of the water scrubbing tower and the spray tower are connected to the input end of the water circulation device.

5. A modular carbonization system according to claim 4, characterized in that: Connection flanges are installed on the pipelines between the flue gas filter and the water washing tower, between the water washing tower and the spray tower, and between the spray tower and the tar filter.

6. A modular carbonization system according to claim 4, characterized in that: The flue gas purification device also includes a base, on which the water washing tower, spray tower, negative pressure fan and pressure regulating tower are all installed.

7. A modular carbonization system according to claim 4, characterized in that: The water circulation device includes a water pump, a water tank, and a water supply pipe. The water pump is installed on the water supply pipe. One end of the water supply pipe is connected to the water tank, and the other end is connected to the water washing tower, the spray tower, and the inlet pipe. The water washing tower, the spray tower, the negative pressure fan, and the pressure regulating tower are all installed on the water tank. The bottom of the water washing tower and the spray tower are directly connected to the water tank.

8. A modular carbonization system according to claim 7, characterized in that: At least two water tanks are provided, and the two water tanks are connected by a connecting pipe. The connecting pipe is provided with a connecting flange. The water washing tower and the spray tower are both installed on the same water tank. The water inlet pipe is connected to the water tank on which the water washing tower is installed, and the water inlet end of the water supply pipe is located on the other water tank.

9. A modular carbonization system according to claim 7, characterized in that: The water supply pipe is connected to a spray pipe, which is installed on the top side wall of the box.

10. A modular carbonization system according to claim 8, characterized in that: A sedimentation tank is provided at the outlet of the water tank on which the washing tower is installed, and a sewage pipe for connecting the sedimentation tank is provided on the tank body.

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