A carbon abatement system

Abstract

The utility model relates to carbon emission reduction, specifically discloses a carbon emission reduction system, including the combustor, the smoke exhaust system, adsorption device, spray tower that set up in proper order still include with adsorption device connection's carbonization subassembly, and with adsorption device connection's saturated biochar jar, saturated biochar jar is connected with combustor. The carbon emission reduction system of the utility model can efficiently and low -cost reduce the carbon dioxide emission after fuel combustion.

Description

Technical Field

[0001] This utility model relates to the technical field of carbon emission reduction, and more specifically, to a carbon emission reduction system. Background Technology

[0002] Small and micro fuel combustion plants generate large amounts of carbon dioxide through fuel combustion, facing increasingly stringent carbon reduction requirements. Among existing carbon capture technologies, large-scale chemical absorption systems (such as amine methods) are complex and costly, far exceeding the affordability of small plants; simple physical adsorption technologies (such as activated carbon adsorption) are inefficient and cannot meet basic emission reduction needs.

[0003] While traditional biochar adsorption solutions are low in cost, their adsorption rates fluctuate greatly and lack a secondary purification process, resulting in insufficient emission stability. Simple chemical absorption (such as lime slurry spraying) requires continuous consumption of reagents, leading to high long-term maintenance costs and a lack of integration with waste resource utilization.

[0004] Meanwhile, agricultural waste (straw, rice husks, etc.) is mostly directly incinerated, which not only wastes resources but also exacerbates carbon emissions. Current technologies have not formed an integrated solution of "low-cost adsorption + resource recycling + controllable efficiency," leading to a dilemma for small-scale factories: "high costs are unaffordable, while low costs are insufficient." Therefore, it is necessary to develop a composite system that integrates the physical adsorption and chemical absorption of biochar. Utility Model Content

[0005] The purpose of this invention is to provide a carbon emission reduction system that can efficiently and cost-effectively reduce carbon dioxide emissions after fuel combustion.

[0006] This utility model is achieved through the following technical solution: The carbon emission reduction system of this utility model includes a burner, a flue gas system, an adsorption device, and a spray tower arranged in sequence, and also includes a carbonization component connected to the adsorption device, and a saturated biochar tank connected to the adsorption device; the saturated biochar tank is connected to the burner.

[0007] Furthermore, the smoke exhaust system includes a smoke hood, a flue connected to the smoke hood, and a filter device connected to the flue, arranged in sequence; the smoke hood is located near the exhaust port of the burner, and the air outlet of the filter device is connected to the air inlet of the adsorption device.

[0008] Furthermore, a negative pressure machine is connected to the exhaust port of the spray tower.

[0009] Furthermore, the carbonization assembly includes a pulverizing device, a carbonization device, and a carbon storage device arranged in sequence, wherein the carbon storage device is connected to the adsorption device.

[0010] Furthermore, it also includes a slurry conditioning device, a slurry storage tank connected to the slurry conditioning device, and a pump body located at the outlet end of the slurry storage tank; the pump body is connected to the inlet end of the spray tower.

[0011] Furthermore, the discharge end of the spray tower is connected to a sedimentation tank, the sedimentation tank is connected to a filtration device, and the discharge end of the filtration device is connected to the slurry storage tank.

[0012] Further, the adsorption device includes an adsorber; the adsorber includes an adsorption box, an air inlet pipe disposed on the lower side wall of the adsorption box, an exhaust pipe disposed on the upper end of the adsorption box, multiple support bars disposed on the inner wall of the adsorption box, multiple boxes on the side wall of the adsorption box, multiple storage boxes disposed in the adsorption box, a discharge hole disposed on the side wall of the storage box, a baffle hinged to the discharge hole, and ventilation holes opened on the upper and lower side walls of the storage box; the multiple support bars are distributed vertically, one storage box is disposed on one support bar, one storage box is disposed near one box door, the air inlet pipe is connected to the exhaust end of the filter device, and the exhaust pipe is connected to the air inlet end of the spray tower.

[0013] Furthermore, the adsorption device includes a pair of adsorbers, a first valve is provided on the air inlet pipe, and a second valve is provided on the exhaust pipe; both air inlet pipes are connected to the exhaust end of the filter device, and both exhaust pipes are connected to the air inlet end of the spray tower.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: In the carbon emission reduction system of this utility model, fuel is fed into a burner for combustion. The flue gas produced during combustion enters an adsorption device through an exhaust system. Simultaneously, agricultural by-products (such as straw) are fed into a carbonization device for carbonization to form biochar. The biochar is then fed into the adsorption device. When the flue gas enters the adsorption device, it comes into contact with the biochar and partially enters the porous structure of the biochar. Therefore, carbon dioxide can be adsorbed by the biochar. The fully adsorbed biochar is temporarily stored in a saturated biochar tank. Later, the saturated biochar can be fed back into the burner for combustion to provide energy. Furthermore, the gas discharged from the adsorption device can also enter a spray tower, where carbon dioxide absorption liquid is sprayed to further absorb carbon dioxide from the gas, thereby adjusting the carbon dioxide content in the final discharged gas. Therefore, this system not only effectively utilizes agricultural waste but also effectively delays and reduces carbon dioxide emissions, enabling the carbon dioxide in the flue gas to meet emission standards at a low cost. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the carbon emission reduction system provided in an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the adsorption device provided in an embodiment of this utility model from one perspective;

[0017] Figure 3 A two-view structural schematic diagram of the adsorption device provided in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the adsorption box provided in an embodiment of the present invention;

[0019] Figure 5 This is a structural schematic diagram of the storage box portion provided in an embodiment of the present utility model.

[0020] Icons: 1-Burner, 2-Exhaust system, 21-Exhaust fan, 22-Flue, 23-Filter device, 3-Adsorption device, 31-Adsorber, 311-Adsorption box, 312-Inlet pipe, 313-Exhaust pipe, 314-First valve, 315-Second valve, 316-Door, 317-Support bar, 318-Storage box, 319-Baffle, 3110-Ventilation hole, 4-Spray tower, 5-Carbonization component, 51-Pulverizing device, 52-Carbonization device, 53-Carbon storage device, 6-Saturated biochar tank, 7-Negative pressure machine, 8-Sedimentation tank, 9-Filtering device, 10-Slurry preparation device, 11-Slurry storage tank, 12-Pump body. Detailed Implementation

[0021] Example

[0022] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 5As shown, the carbon emission reduction system of this embodiment includes a burner 1, a flue gas system 2, an adsorption device 3, and a spray tower 4 arranged in sequence, and also includes a carbonization component 5 connected to the adsorption device 3, and a saturated biochar tank 6 connected to the adsorption device 3; the saturated biochar tank 6 is connected to the burner 1. Specifically, fuel is fed into burner 1 for combustion. The resulting flue gas enters adsorption device 3 through exhaust system 2. Simultaneously, agricultural byproducts (such as straw) are fed into carbonization device 52 for carbonization to form biochar. The biochar is then fed into adsorption device 3. When the flue gas enters adsorption device 3, it comes into contact with the biochar and partially enters the porous structure of the biochar, thus adsorbing carbon dioxide. The fully adsorbed biochar is temporarily stored in saturated biochar tank 6. Later, the saturated biochar can be fed back into burner 1 for combustion to provide energy. Furthermore, the gas discharged from adsorption device 3 can also enter spray tower 4, where carbon dioxide absorption liquid is sprayed to further absorb carbon dioxide from the gas, thereby adjusting the carbon dioxide content in the final discharged gas. Therefore, this system not only effectively utilizes agricultural waste but also effectively delays and reduces carbon dioxide emissions, enabling the carbon dioxide in the flue gas to meet emission standards at a low cost. It should be noted that burner 1 can be a Teminox GL series burner from Zak Energy or a KM series biomass pellet burner from Dacheng County Keming Anticorrosion Materials Factory, such as models KM-140 and KM-200; spray tower 4 can be a spray tower from Sichuan Guang'an Shanjia Environmental Protection Equipment Co., Ltd.

[0023] The smoke extraction system 2 in this embodiment includes a smoke hood, a flue 22 connected to the smoke hood, and a filter device 23 connected to the flue 22, arranged sequentially. The smoke hood is located near the exhaust port of the burner 1, and the outlet of the filter device 23 is connected to the inlet of the adsorption device 3. Specifically, the smoke hood is mainly used to collect the flue gas, allowing it to fully enter the flue 22, and then enter the filter device 23 through the flue 22. The filter device 23 can filter the solid particles in the flue gas. A conventional gas filter device 23, such as a cyclone separator or a bag filter, can be used.

[0024] In this embodiment, a negative pressure unit 7 is connected to the exhaust port of the spray tower 4. Specifically, the negative pressure unit 7 can generate negative pressure in the spray tower 4, the adsorption device 3, and the filter device 23, thereby guiding the gas flow.

[0025] The carbonization component 5 in this embodiment includes a pulverizing device 51, a carbonization device 52, and a carbon storage device 53 arranged sequentially. The carbon storage device 53 is connected to the adsorption device 3. Specifically, the biomass raw material can be pulverized into particles by the pulverizing device 51 and then fed into the carbonization device 52 for carbonization. After carbonization, it is sent to the carbon storage device 53 for temporary storage. When the adsorption device 3 needs to replace the biochar, it can be directly taken from the carbon storage device 53. The pulverizing device 51 can be a conventional pulverizer, the carbonization device 52 can be a TH-500 small carbonization furnace from Henan Gongxin Machinery Equipment Co., Ltd., or a Kaidi 1200 small horizontal smokeless carbonization furnace, etc., and the carbon storage device 53 can be a conventional storage tank.

[0026] This embodiment also includes a slurry preparation device 10, a slurry storage tank 11 connected to the slurry preparation device 10, and a pump body 12 located at the outlet end of the slurry storage tank 11; the pump body 12 is connected to the inlet end of the spray tower 4. Specifically, various different adsorbents can be used to absorb carbon dioxide in the spray tower 4 as needed, such as using lime milk (calcium hydroxide) to contact carbon dioxide to produce calcium carbonate (other releasable adsorbents can also be used). Therefore, the slurry preparation device 10 is needed to prepare a suitable slurry, which is then sent to the slurry storage tank 11 for temporary storage. Then, an appropriate amount of slurry is sprayed according to the carbon dioxide concentration of the gas discharged into the spray tower 4, so that the carbon dioxide concentration in the gas finally discharged through spraying is maintained within a certain range.

[0027] In this embodiment, the discharge end of the spray tower 4 is connected to a sedimentation tank 8, the sedimentation tank 8 is connected to a filtration device 9, and the discharge end of the filtration device 9 is connected to a slurry storage tank 11. Specifically, the solid-liquid mixture discharged from the spray tower 4 enters the sedimentation tank 8 for preliminary sedimentation, then is sent to the filtration device 9 for filtration, and then the supernatant after filtration is sent back to the slurry storage tank 11 for reuse.

[0028] The adsorption device 3 in this embodiment includes an adsorber 31; the adsorber 31 includes an adsorption box 311, an air inlet pipe 312 disposed on the lower side wall of the adsorption box 311, an exhaust pipe 313 disposed on the upper end of the adsorption box 311, multiple support bars 317 disposed on the inner wall of the adsorption box 311, multiple boxes 316 disposed on the side wall of the adsorption box 311, multiple storage boxes 318 disposed in the adsorption box 311, a discharge hole disposed on the side wall of the storage box 318, a baffle 319 hinged at the discharge hole, and ventilation holes 3110 opened on the upper and lower side walls of the storage box 318; the multiple support bars 317 are distributed vertically, one storage box 318 is disposed on one support bar 317, one storage box 318 is disposed close to one box door 316, the air inlet pipe 312 is connected to the exhaust end of the filter device 23, and the exhaust pipe 313 is connected to the air inlet end of the spray tower 4. Specifically, the biochar in the carbon storage device 53 is fed into the storage box 318, and then the storage box 318 is fed into the adsorption box 311. The gas discharged from the filter device 23 enters the lower end of the adsorption box 311 through the inlet pipe 312, passes through the biochar in multiple storage boxes 318 from bottom to top, and is discharged from the exhaust pipe 313 at the top. During this process, some carbon dioxide enters the biochar. When the biochar is saturated, the box door 316 is opened, the storage box 318 is removed, and the biochar is replaced.

[0029] The adsorption device 3 in this embodiment includes a pair of adsorbers 31. A first valve 314 is provided on the inlet pipe 312, and a second valve 315 is provided on the exhaust pipe 313. Both inlet pipes 312 are connected to the exhaust end of the filter device 23, and both exhaust pipes 313 are connected to the inlet end of the spray tower 4. Specifically, by adjusting the first valve 314 and the second valve 315, the operating state of the pair of adsorbers 31 can be switched. When the biochar in one of the adsorbers 31 is replaced, the relevant first valve 314 and second valve 315 can be closed, at which time the other adsorber 31 can be in operation.

[0030] In summary, the carbon emission reduction system of this embodiment involves feeding fuel into burner 1 for combustion. The resulting flue gas enters adsorption device 3 through exhaust system 2. Simultaneously, agricultural byproducts (such as straw) are fed into carbonization device 52 to form biochar. The biochar is then fed into adsorption device 3. When the flue gas enters adsorption device 3, it comes into contact with the biochar and partially enters the porous structure of the biochar, thus adsorbing carbon dioxide. The fully adsorbed biochar is temporarily stored in saturated biochar tank 6. Later, the saturated biochar can be fed back into burner 1 for combustion to provide energy. Furthermore, the gas discharged from adsorption device 3 can enter spray tower 4, where carbon dioxide absorption liquid is sprayed to further absorb carbon dioxide from the gas, thereby adjusting the carbon dioxide content in the final discharged gas. Therefore, this system not only effectively utilizes agricultural waste but also effectively delays and reduces carbon dioxide emissions, enabling the carbon dioxide in the flue gas to meet emission standards at a low cost.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A carbon emission reduction system, characterized in that: It includes a burner (1), a flue gas system (2), an adsorption device (3), and a spray tower (4) arranged in sequence, and also includes a carbonization component (5) connected to the adsorption device (3), and a saturated biochar tank (6) connected to the adsorption device (3); The saturated biochar canister (6) is connected to the burner (1).

2. The carbon emission reduction system according to claim 1, characterized in that: The smoke exhaust system (2) includes a smoke hood arranged in sequence, a flue (22) connected to the smoke hood, and a filter device (23) connected to the flue (22); The smoke hood is positioned near the exhaust port of the burner (1), and the air outlet of the filter device (23) is connected to the air inlet of the adsorption device (3).

3. The carbon emission reduction system according to claim 1, characterized in that: A negative pressure machine (7) is connected to the exhaust port of the spray tower (4).

4. The carbon emission reduction system according to claim 1, characterized in that: The carbonization component (5) includes a pulverizing device (51), a carbonization device (52), and a carbon storage device (53) arranged in sequence, and the carbon storage device (53) is connected to the adsorption device (3).

5. The carbon emission reduction system according to claim 1, characterized in that: It also includes a slurry conditioning device (10), a slurry storage tank (11) connected to the slurry conditioning device (10), and a pump body (12) located at the outlet end of the slurry storage tank (11); the pump body (12) is connected to the inlet end of the spray tower (4).

6. The carbon emission reduction system according to claim 5, characterized in that: The discharge end of the spray tower (4) is connected to a sedimentation tank (8), the sedimentation tank (8) is connected to a filtration device (9), and the discharge end of the filtration device (9) is connected to the slurry storage tank (11).

7. The carbon emission reduction system according to claim 2, characterized in that: The adsorption device (3) includes an adsorber (31); The adsorber (31) includes an adsorption box (311), an air inlet pipe (312) disposed on the lower side wall of the adsorption box (311), an exhaust pipe (313) disposed on the upper end of the adsorption box (311), a plurality of support bars (317) disposed on the inner wall of the adsorption box (311), a plurality of boxes (316) disposed on the side wall of the adsorption box (311), a plurality of storage boxes (318) disposed in the adsorption box (311), a discharge hole disposed on the side wall of the storage box (318), a baffle (319) hinged to the discharge hole, and a vent hole (3110) opened on the upper and lower side walls of the storage box (318). Multiple support bars (317) are distributed vertically, a storage box (318) is disposed on a support bar (317), a storage box (318) is disposed near a door (316), the air inlet pipe (312) is connected to the exhaust end of the filter device (23), and the exhaust pipe (313) is connected to the air inlet end of the spray tower (4).

8. The carbon emission reduction system according to claim 7, characterized in that: The adsorption device (3) includes a pair of adsorbers (31), a first valve (314) is provided on the air inlet pipe (312), and a second valve (315) is provided on the exhaust pipe (313); Both of the inlet pipes (312) are connected to the exhaust end of the filter device (23), and both of the exhaust pipes (313) are connected to the inlet end of the spray tower (4).

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