Filling device for sealing CO2 with coal ash

Abstract

The utility model discloses a filling device for sealing CO2 with coal ash, and belongs to the technical field of underground engineering filling. Comprising a CO2 injection device, a carbon sequestration reaction device and a water injection device, one end of a gas inlet pipe of the CO2 injection device is connected with a CO2 gas storage tank, and the CO2 gas storage tank is connected with a gas outlet pipe; a reaction box valve is arranged in the carbon sequestration reaction box, and the carbon sequestration reaction box is divided into an upper stirring area and a lower coal ash sequestration CO2 filling material storage chamber through the reaction box valve; the end part of the air outlet pipe is communicated with the stirring area, and a stirring device is arranged in the stirring area; the bottom of the coal ash sealed CO2 filling material storage chamber is connected with a coal ash sealed CO2 filling material discharge pipe; the water suction pump is arranged in the water storage tank and connected to the water injection pipe, and the water injection pipe is connected with the stirring area; according to the device, the carbon sequestration reaction box is combined with other structures, so that coal ash is utilized while CO2 sequestration is realized; the device combines sealing and filling functions, and integrated operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground engineering filling, specifically a fly ash sealing CO 2 Filling device. Background Art

[0002] Fly ash is a solid waste generated during coal combustion and has rich potential for resource utilization. Traditionally, fly ash is mainly used as a concrete admixture or filler, but with the increasing concern about carbon dioxide emissions, fly ash is being used to store CO 2 And converting it into filling materials has become a new technological trend. The large-scale emission of carbon dioxide has had a serious impact on global climate change and environmental pollution, so carbon dioxide emission reduction technology has become crucial. In this context, carbon sequestration technology came into being, aiming to solidify carbon dioxide gas and seal it underground or in other media for a long time, thereby reducing emissions to the atmosphere. At the same time, underground engineering filling technology, as an effective underground space management method, is widely used in underground mining, geological disaster prevention and control and other fields. Using fly ash to store CO 2 And convert it into filling material, which can not only achieve carbon dioxide emission reduction and storage, but also utilize waste resources to achieve the dual purpose of resource recycling and environmental protection. In summary, it is necessary to study a method for fly ash to store CO 2 Filling device, using fly ash to store CO 2 And converted into an integrated equipment for filling materials. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and proposes a method for sealing CO 2 The filling device can solve the problems of carbon dioxide emission, insufficient fly ash resource utilization, underground space utilization and meet the needs of environmental protection and resource recycling in the existing technology.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions.

[0005] A method for storing CO in fly ash 2 Filling device, including CO 2 injection device, carbon storage reaction device and water injection device; CO 2 The injection device includes an air inlet pipe, CO 2 The carbon storage reaction device includes a carbon storage reaction box; the water injection device includes a water injection pipe, a water pump and a water storage tank; one end of the air inlet pipe is connected to the CO 2 The other end of the air intake pipe is used to connect the external CO 2 Gas supply pipe, CO 2The gas storage box is connected to the gas outlet pipe; a reaction box valve is provided in the carbon storage reaction box, which is divided into an upper stirring zone and a lower fly ash storage CO2 zone through the reaction box valve. 2 The end of the gas outlet pipe is connected to the mixing area, and a mixing device is provided in the mixing area. The mixing area is used to hold fly ash. The fly ash seals CO 2 The bottom of the filling material storage chamber is connected to fly ash to seal CO 2 Filling material discharge pipe; a water pump is arranged in the water storage tank, the water pump is connected to the water injection pipe, and the water injection pipe is connected to the mixing area.

[0006] Furthermore, the stirring device includes a motor, a stirring shaft and a stirring paddle; a motor is connected to the top of the carbon sequestration reaction box, an output shaft of the motor is connected to the stirring shaft, the stirring shaft extends into the stirring zone of the carbon sequestration reaction box, and stirring paddles are evenly distributed on the stirring shaft.

[0007] Furthermore, the stirring shaft is a hollow structure, and CO 2 The exhaust port and the end of the exhaust pipe are connected to the stirring shaft through a rotating joint.

[0008] Furthermore, a sealed shell is provided on the outer wall of the carbon sequestration reaction box.

[0009] Furthermore, the intake pipe and fly ash can store CO 2 The filling material discharge pipe and water injection pipe are respectively provided with valves.

[0010] Furthermore, CO 2 A control panel is installed on the gas storage box, and each process is controlled through the control panel and the controller inside it.

[0011] Furthermore, the CO 2 The injection device, the carbon sequestration reaction device and the water injection device are installed side by side in sequence from right to left on the base; a universal wheel is installed at the bottom of the base.

[0012] The beneficial effects of the utility model compared with the prior art are:

[0013] (1) Reducing carbon dioxide emissions: Fly ash stores CO 2 The filling device can seal the carbon dioxide gas in the fly ash to prevent it from being released into the atmosphere, thereby reducing carbon dioxide emissions.

[0014] (2) Resource recycling: Fly ash is a byproduct of coal combustion and can store CO 2 The filling device can use it as a medium material, combining it with carbon dioxide, to achieve the reuse of fly ash and reduce the generation of waste.

[0015] (3) Carbon emission reduction cost: Compared with traditional carbon dioxide capture and storage devices, fly ash storage of CO 2 The filling device has a lower cost. By placing the carbon storage reaction box with fly ash and combining it with other structures, CO 2 The fly ash can be utilized while being sealed.

[0016] (4) This device combines the functions of sealing and filling. While sealing carbon dioxide, it also seals CO through fly ash. 2 The filling material is discharged from the discharge pipe and then connected to the pipeline to flow into the goaf, realizing integrated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model discloses a fly ash for sealing CO 2 A schematic diagram of the structure of a filling device;

[0018] In the figure:

[0019] 1-intake pipe; 2-valve; 3-CO 2 Gas storage box; 4- control panel; 5- outlet pipe; 6- motor; 7- carbon storage reaction box; 8- CO 2 Exhaust port; 9-stirring paddle; 10-sealed housing; 11-water injection pipe; 12-water pump; 13-water storage tank; 14-reaction tank valve; 15-fly ash to seal CO 2 Filling material storage room; 16-Fly ash to store CO 2 Filling material discharge pipe; 17-universal wheel; 18-base; 19-stirring shaft. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0021] like Figure 1 As shown, this embodiment provides a method for storing CO in fly ash. 2 A filling device comprising CO 2 injection device, carbon storage reaction device and water injection device; CO 2 The injection device includes an air inlet pipe 1, a CO 2 The carbon storage reaction device includes a motor 6 and a carbon storage reaction box 7; the water injection device includes a water injection pipe 11, a water pump 12 and a water storage tank 13. 2The injection device, the carbon sequestration reaction device and the water injection device are installed side by side from right to left in sequence on the base 18; a universal wheel 17 is installed at the bottom of the base 18 for moving the entire device in all directions.

[0022] Specifically, one end of the intake pipe 1 is connected to the CO 2 The other end of the intake pipe 1 is used to connect to the external CO 2 Gas supply pipe, valve 2 is provided on the gas inlet pipe 1; CO 2 The top of the air storage box 3 is connected to the air outlet pipe 5. 2 A control panel 4 is installed on the air storage box 3, and each process can be controlled to proceed normally through the control panel 4 and the controller inside it.

[0023] The outer wall of the carbon storage reaction box 7 is provided with a sealed shell 10, and a reaction box valve 14 is provided in the carbon storage reaction box 7. The carbon storage reaction box 7 is divided into an upper stirring zone and a lower fly ash storage CO2 zone by the reaction box valve 14. 2 The filling material storage chamber 15 is connected to the top of the carbon storage reaction box 7. The output shaft of the motor 6 is connected to the stirring shaft 19. The stirring shaft 19 extends into the stirring area of ​​the carbon storage reaction box 7. The stirring paddles 9 are evenly distributed on the stirring shaft 19. The stirring shaft 19 is a hollow structure, and the stirring shaft 19 is evenly provided with CO 2 The end of the exhaust port 8 and the exhaust pipe 5 are connected to the stirring shaft 19 through a rotary joint. 2 The gas enters the stirring shaft 19 through the gas outlet pipe 5 and passes through the CO 2 The exhaust port 8 enters the carbon storage reaction box 7. Fly ash stores CO 2 The bottom of the filling material storage chamber 15 is connected to a fly ash storage CO 2 Filling material discharge pipe 16, fly ash seals CO 2 The filling material discharge pipe 16 is also provided with a valve 2 .

[0024] The water pump 12 is disposed in the water storage tank 13 . The water pump 12 is connected to the water injection pipe 11 . The water injection pipe 11 is connected to the top of the carbon sequestration reaction box 7 . A valve 2 is disposed on the water injection pipe 11 .

[0025] The working process of the filling device described in this embodiment is as follows:

[0026] Specifically, the control panel 4 can turn on the water pump 12, and then open the valve 2 on the water injection pipe 11. The water pump 12 can inject the water in the water storage tank 13 into the carbon sequestration reaction box 7 through the water injection pipe 11. The control panel 4 can control the water intake, which is specifically determined according to the amount of fly ash used. This is the first process.

[0027] Inlet pipe 1 can be connected to external CO 2The control panel 4 can control the switch of the valve 2 on the air inlet pipe 1. When the switch of the valve 2 on the air inlet pipe 1 is opened, the control panel 4 adjusts the injection pressure, and the CO 2 From CO 2 The gas in the gas storage box 3 is transported to the carbon sequestration reaction box 7 through the gas outlet pipe 5; this is the second process.

[0028] The control panel 4 turns on the motor 6, and the stirring paddle 9 rotates under the drive of the motor 6 to fully stir the fly ash and water added in advance. 2 The gas is blown from the CO 2 The exhaust port 8 enters the carbon storage reaction box 7, and the CO 2 The gas is fully sealed by the fly ash under the rotation of the stirring blade 9. After the adsorption sealing is completed, the control panel 4 opens the reaction box valve 14, and the fly ash that has fully reacted in the carbon sealing reaction box 7 seals the CO 2 Filling material flows into fly ash to store CO 2 Filling material storage chamber 15, and then seal the fly ash into CO through control panel 4 2 When the valve 2 on the filling material discharge pipe 16 is opened, the filling material that has reacted well seals CO through the fly ash. 2 The filling material is discharged from the discharge pipe 16 and then connected to the pipeline to flow into the goaf, which is the third process.

[0029] The sealed housing 10 can inject CO 2 Sealed in the carbon sequestration reaction box 7 to prevent carbon dioxide leakage and improve carbon sequestration efficiency;

[0030] The CO 2 The injection device, the carbon sequestration reaction device and the water injection device are supported by the base 18 so that the three can work steadily;

[0031] The universal wheels 17 can steadily move the filling device forward in all directions.

[0032] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.

Claims

1. A filling device for sealing CO2 with fly ash, characterized in that: The invention comprises a CO2 injection device, a carbon sequestration reaction device and a water injection device; the CO2 injection device comprises an air inlet pipe (1), a CO2 gas storage box (3) and an air outlet pipe (5); the carbon sequestration reaction device comprises a carbon sequestration reaction box (7); the water injection device comprises a water injection pipe (11), a water pump (12) and a water storage box (13); one end of the air inlet pipe (1) is connected to the CO2 gas storage box (3), and the other end of the air inlet pipe (1) is used to connect to an external CO2 gas supply pipe, and the CO2 gas storage box (3) is connected to the air outlet pipe (5); a reaction box valve (14) is arranged in the carbon sequestration reaction box (7) to pass The carbon storage reaction box (7) is divided into an upper stirring zone and a lower fly ash storage CO2 filling material storage chamber (15) through a reaction box valve (14); the end of the gas outlet pipe (5) is connected to the stirring zone, and a stirring device is arranged in the stirring zone, and the stirring zone is used to hold fly ash; the bottom of the fly ash storage CO2 filling material storage chamber (15) is connected to a fly ash storage CO2 filling material discharge pipe (16); the water pump (12) is arranged in the water storage tank (13), and the water pump (12) is connected to the water injection pipe (11), and the water injection pipe (11) is connected to the stirring zone.

2. A filling device for storing CO2 with fly ash according to claim 1, characterized in that: The stirring device comprises a motor (6), a stirring shaft (19) and a stirring paddle (9); the top of the carbon sequestration reaction box (7) is connected to the motor (6), the output shaft of the motor (6) is connected to the stirring shaft (19), the stirring shaft (19) extends into the stirring zone of the carbon sequestration reaction box (7), and the stirring paddles (9) are evenly distributed on the stirring shaft (19).

3. A filling device for storing CO2 with fly ash according to claim 2, characterized in that: The stirring shaft (19) is a hollow structure, and CO2 exhaust ports (8) are evenly arranged on the stirring shaft (19). The end of the exhaust pipe (5) is connected to the stirring shaft (19) via a rotary joint.

4. A filling device for storing CO2 with fly ash according to claim 1, characterized in that: The outer wall of the carbon sequestration reaction box (7) is provided with a sealing shell (10).

5. The filling device for storing CO2 with fly ash according to claim 1, characterized in that: The air inlet pipe (1), the fly ash CO2 sealing filling material discharge pipe (16), and the water injection pipe (11) are respectively provided with valves (2).

6. The filling device for storing CO2 with fly ash according to claim 1, characterized in that: A control panel (4) is installed on the CO2 gas storage box (3), and each process is controlled by the control panel (4) and a controller inside the control panel (4).

7. The filling device for storing CO2 with fly ash according to claim 1, characterized in that: The CO2 injection device, the carbon sequestration reaction device and the water injection device are installed side by side in sequence from right to left on a base (18); a universal wheel (17) is installed at the bottom of the base (18).

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