Cementing material carbon absorption centrifugal continuous reaction device and method

Abstract

The invention provides a cementitious material carbon absorption centrifugal continuous reaction device and a cementitious material carbon absorption centrifugal continuous reaction method. The cementitious material carbon absorption centrifugal continuous reaction device comprises a reaction kettle, the top of the reaction kettle is provided with a feeding port, a smoke exhaust port and an activator inlet port, the side wall of the reaction kettle is further provided with a plurality of gas distribution holes, and the bottom of the reaction kettle is further provided with a discharging port; the reaction kettle further comprises a stirring vertical shaft, the stirring vertical shaft is rotationally arranged in the reaction kettle, and a plurality of groups of stirring blades are further arranged on the stirring vertical shaft in the axial direction; a plurality of centrifugal stirring discs are horizontally arranged; the stirring vertical shaft is coaxially sleeved through a central through hole of each centrifugal stirring disc; each centrifugal stirring disc is positioned between two adjacent groups of stirring blades; and a plurality of mixed flow baffles are uniformly arranged on the upper surface of each centrifugal stirring disc around the stirring vertical shaft. According to the device, discharging can be achieved in the feeding process, material mixing is more uniform, the quality of the discharged negative carbon gel material is higher, the time for discharging the negative carbon gel material is shortened, the grouting and filling speed is increased, and the construction period is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon sequestration, and relates to continuous centrifugal reaction, and particularly relates to a device and method for continuous centrifugal reaction of cementitious material for carbon absorption. Background Art

[0002] Global warming caused by the greenhouse effect has affected the survival and development of mankind, and it is urgent to reduce CO2 (carbon dioxide) emissions. Carbon dioxide capture, utilization, and storage (CCUS) technology is a necessary means to achieve a large-scale reduction of CO 2 emissions at the present stage. CCUS technology mainly includes CO 2 capture, CO 2 transportation, CO 2 storage, and utilization. Among them, CO 2 storage is mainly to achieve the permanent isolation of CO 2 from the atmosphere.

[0003] Currently, CO 2 storage is mainly achieved through a negative carbon sequestration device. Since coal-based solid waste slurries such as fly ash and coal gangue are rich in calcium and magnesium ions, coal-based solid waste slurries can be used as ideal raw materials for sequestering carbon dioxide. Therefore, in the CO 2 negative carbon sequestration device, by mixing coal-based solid waste slurry, solubilizing and activating components, and CO 2 , a negative carbon gel material can be formed. Then, by pouring the negative carbon gel material into coal pillars or roadway fissures in the coal mine, the negative carbon gel material solidifies and mineralizes in the coal pillars or roadway fissures in the coal mine, realizing the storage and utilization of CO 2 . 2

[0004] However, the existing CO 2 negative carbon sequestration device can mix coal-based solid waste slurry, solubilizing and activating components, and CO 2 . After the mixing is completed, the negative carbon gel material is discharged and then mixed again. In the whole process, not only the mixing is insufficient, but also the negative carbon gel material cannot be discharged while mixing, which increases the time for forming and discharging the negative carbon gel material, delays the progress of grouting and filling, and increases the construction period. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a device and method for continuous centrifugal reaction of cementitious material for carbon absorption, so as to solve the technical problem that the speed and quality of CO 2 negative carbon sequestration in the existing technology need to be further improved.

[0006] To solve the above technical problems, the present invention is implemented by adopting the following technical solutions:

[0007] A gelling material carbon absorption centrifugal continuous reaction device, including a reaction kettle. The top of the reaction kettle is provided with a feeding port, a flue gas discharging port, and an activator inlet port. The side wall of the reaction kettle is provided with a plurality of air distribution holes evenly arranged circumferentially. The bottom of the reaction kettle is provided with a discharging port.

[0008] It also includes a vertically arranged stirring vertical shaft, which is rotatably arranged in the reaction kettle. Along the axial direction of the stirring vertical shaft, a plurality of groups of stirring blades are arranged, and each group of stirring blades is evenly arranged circumferentially along the stirring vertical shaft.

[0009] It also includes a plurality of horizontally arranged centrifugal stirring disks. Each centrifugal stirring disk is provided with a through hole at the center, and the stirring vertical shaft is coaxially sleeved through the central through hole of each centrifugal stirring disk. Each centrifugal stirring disk is located between two adjacent groups of stirring blades.

[0010] On the upper surface of each centrifugal stirring disk, a plurality of flow mixing baffles are evenly arranged around the stirring vertical shaft. One end of each flow mixing baffle is close to the stirring vertical shaft, and the other end of each flow mixing baffle is far from the stirring vertical shaft.

[0011] The present invention also has the following technical features:

[0012] Preferably, the plurality of centrifugal stirring disks are sequentially divided into a first stirring disk, a second stirring disk, and a third stirring disk from top to bottom.

[0013] The flow mixing baffles are sequentially divided into a first flow mixing baffle, a second flow mixing baffle, and a third flow mixing baffle from top to bottom.

[0014] The central through hole of the first stirring disk is a first shaft hole, and the stirring vertical shaft passes through the first shaft hole and is fixedly connected to the first stirring disk.

[0015] The gap between the outer edge of the first stirring disk and the inner side wall of the reaction kettle is a first annular channel.

[0016] Specifically, the central through hole of the second stirring disk is a second shaft hole, and the stirring vertical shaft passes through the second shaft hole and is fixedly connected to the second stirring disk.

[0017] The gap between the outer edge of the second stirring disk and the inner side wall of the reaction kettle is a second annular channel, and the width of the second annular channel is smaller than the width of the first annular channel.

[0018] The second stirring disk is also provided with a plurality of second arc channels, which are evenly arranged circumferentially. Each second arc channel is located outside the second flow mixing baffle, and each second arc channel penetrates through the upper and lower ends of the second stirring disk.

[0019] Preferably, the outer edge of the third stirring disc is fixedly connected to the inner side wall of the reaction kettle. The central through hole of the third stirring disc is the third shaft hole, and there is a clearance fit between the third shaft hole and the stirring vertical shaft.

[0020] The third stirring disc is also provided with a plurality of third arc-shaped channels. The plurality of third arc-shaped channels are uniformly arranged in the circumferential direction. Each third arc-shaped channel is located outside the third mixing baffle, and each third arc-shaped channel penetrates through the upper and lower ends of the third stirring disc.

[0021] Preferably, a support plate is also coaxially sleeved on the stirring vertical shaft. The support plate is fixedly connected to the stirring vertical shaft, and the lower surface of the support plate is slidably connected to the upper surface of the third stirring disc.

[0022] Preferably, a plurality of bottom stirrers are also arranged on the stirring vertical shaft. The plurality of bottom stirring plates are respectively located at the top and bottom of the third stirring disc.

[0023] Each of the bottom stirrers includes a stirrer central shaft. The stirrer central shaft is coaxially sleeved and fixedly connected to the stirring vertical shaft. A plurality of stirring plates are uniformly arranged on each stirrer central shaft in the circumferential direction. Each stirring plate is arranged radially, and a convex plate extending downward is arranged at one end of each stirring plate away from the stirring vertical shaft.

[0024] Preferably, the feeding port is located at the center of the top of the reaction kettle. A water inlet is also opened near the center of the top of the reaction kettle. A diffusion assembly is also arranged in the reaction kettle. The diffusion assembly is coaxially arranged at the top of the stirring vertical shaft.

[0025] The diffusion assembly includes an inverted frustum-shaped arc plate. The inside of the frustum-shaped arc plate is hollow and both the upper and lower ends are open. The large-diameter end of the frustum-shaped arc plate is fixedly connected to the inner wall of the reaction kettle. A plurality of arc plate liquid leakage holes are also opened on the frustum-shaped arc plate. The plurality of arc plate liquid leakage holes are uniformly arranged in the circumferential direction along the side wall of the frustum-shaped arc plate.

[0026] The diffusion assembly also includes a first conical plate with a hollow inside and both the upper and lower ends open. The center of the cone at the top of the first conical plate is close to the feeding port. The upper half of the first conical plate is located inside the frustum-shaped arc plate, and the outer surface of the first conical plate is fixedly connected to the small-diameter end of the frustum-shaped arc plate.

[0027] A plurality of first liquid leakage holes are also opened on the first conical plate located inside the frustum-shaped arc plate. The plurality of first liquid leakage holes are uniformly arranged in the circumferential direction.

[0028] A plurality of second liquid leakage holes are also opened on the lower half of the first conical plate. The plurality of second liquid leakage holes are uniformly arranged in the circumferential direction.

[0029] On the lower half surface of the first conical plate, a plurality of rib plates are evenly arranged along the circumferential direction, and each rib plate is arranged along the generatrix of the first conical plate. One end of each rib plate contacts the frustum-shaped arc plate, and the other end of each rib plate extends to the lower edge of the first conical plate.

[0030] Preferably, a first conical plate bracket is coaxially arranged inside the first conical plate. The first conical plate bracket includes a central disc, and a plurality of support rods are evenly arranged along the circumferential direction of the central disc. One end of each support rod is fixedly connected to the central disc, and the other end of each support rod is fixedly connected to the inner wall of the first conical plate. A rotating shaft hole is also opened at the center of the central disc, and one end of the rotating shaft is connected to the rotating shaft hole through a bearing.

[0031] The other end of the rotating shaft is fixedly connected to the top of the second conical plate arranged coaxially. The second conical plate is hollow inside and open at the bottom. A limiting shaft hole is arranged on the inner side of the top of the second conical plate, and the second conical plate is fixedly connected to the top of the stirring vertical shaft through the limiting shaft hole.

[0032] On the outer surface of the second conical plate, a plurality of arc-shaped diffusion baffles are evenly distributed along the circumferential direction. One end of each arc-shaped diffusion baffle is located at the center of the top of the second conical plate, and the other end of each arc-shaped diffusion baffle is located on the bottom edge of the second conical plate.

[0033] Preferably, two outer ring cabins with hollow interiors are coaxially sleeved and fixedly connected to the outer side wall of the reaction kettle, and the two outer ring cabins are respectively located on the upper and lower sides of the side wall of the reaction kettle. The two outer ring cabins are respectively connected in communication with two circles of air distribution holes in one-to-one correspondence, and an air inlet port is arranged on the outer side wall of each outer ring cabin.

[0034] Two inner ring cabins with hollow interiors are coaxially sleeved and fixedly connected to the inner side wall of the reaction kettle, and the two inner ring cabins are respectively connected in communication with two circles of air distribution holes in one-to-one correspondence. A plurality of inner ring cabin air outlet holes are also opened along the circumferential direction at the top of each inner ring cabin, and air distribution nozzles are arranged on each inner ring cabin air outlet hole.

[0035] The present invention also protects a method for centrifugal continuous reaction of gel material carbon absorption. This method is realized by using the gel material carbon absorption centrifugal continuous reaction device as described above. This method specifically includes the following steps:

[0036] Step 1, block the discharge port and control the rotation of the stirring vertical shaft.

[0037] Step 2, connect the feeding port to the pipeline for introducing the coal-based solid waste slurry, connect the activator inlet port to the pipeline for adding the solubilizing activation component, and at the same time connect the air inlet port to the pipeline for introducing CO 2 gas into the reaction kettle, that is, introduce the coal-based solid waste slurry, the solubilizing activation component and CO 2 gas into the reaction kettle respectively.

[0038] Step 3: Keep the stirring vertical shaft rotating and carry out the reaction. During the reaction, the clean flue gas is continuously discharged from the flue gas discharge port, and at the same time, clean water can be added through the water inlet.

[0039] Step 4: After the reaction ends, the coal-based solid waste slurry, solubilization activation component, and CO 2 gas in the reaction kettle are mixed and react to obtain the negative carbon gel material. Open the discharge port to discharge the negative carbon gel material. Then, continuously introduce the coal-based solid waste slurry, solubilization activation component, and CO 2 gas into the reaction kettle in sequence to continuously discharge the negative carbon gel material from the discharge port.

[0040] Step 5: When the use is over, stop introducing the coal-based solid waste slurry, solubilization activation component, and CO 2 gas, and empty the negative carbon gel material in the reaction kettle.

[0041] Compared with the prior art, the present invention has the following technical effects:

[0042] (Ⅰ) The device in the present invention can realize discharging while feeding, the material mixing is more uniform, the quality of the discharged negative carbon gel material is higher, the time for discharging the negative carbon gel material is shortened, the grouting filling speed is accelerated, and the construction period is shortened.

[0043] (Ⅱ) The method in the present invention can reduce the content of unreacted materials in the discharged negative carbon gel material and increase the reaction efficiency of the materials in the reaction kettle through the cooperation between multiple centrifugal stirring disks and multiple mixing baffles. Description of the Drawings

[0044] Figure 1 is the overall structural schematic diagram of the device of the present invention.

[0045] Figure 2 is Figure 1 the vertical cross-sectional view at A-A in

[0046] Figure 3 is the structural schematic diagram of the stirring blade of the present invention.

[0047] Figure 4 is the structural schematic diagram of the first stirring disk of the present invention.

[0048] Figure 5 is the structural schematic diagram of the second stirring disk of the present invention.

[0049] Figure 6 is Figure 1 the horizontal cross-sectional view at B-B in

[0050] Figure 7For Figure 2 Partial enlarged view at position C in

[0051] Figure 8 Schematic diagram of the positional relationship between the pallet and the bottom stirrer of the present invention.

[0052] Figure 9 Schematic diagram of the connection between the frustum-shaped arc plate and the first conical plate.

[0053] Figure 10 Schematic diagram of the structure of the first conical plate bracket of the present invention.

[0054] Figure 11 Schematic diagram of the positional relationship between the first conical plate bracket and the second conical plate of the present invention.

[0055] Figure 12 Schematic diagram of the second conical plate of the present invention.

[0056] Figure 13 For Figure 12 Cross-sectional view taken along D-D in

[0057] Figure 14 Schematic diagram of the connection between the outer ring cabin and the reaction kettle of the present invention.

[0058] Figure 15 Schematic diagram of the connection between the reaction kettle and the inner ring cabin of the present invention.

[0059] Figure 16 Schematic diagram of the gas distribution nozzle of the present invention.

[0060] The meanings of the various reference numerals in the figure are as follows: 1 - reaction kettle, 2 - stirring vertical shaft, 3 - stirring blade, 4 - centrifugal stirring disk, 5 - mixing flow baffle, 6 - first shaft hole, 7 - first annular channel, 8 - second annular channel, 9 - pallet, 10 - diffusion assembly, 11 - outer ring cabin, 12 - air inlet port, 13 - inner ring cabin, 14 - bottom stirrer.

[0061] 101 - feed port, 102 - flue gas discharge port, 103 - activator inlet port, 104 - gas distribution hole, 105 - discharge port, 106 - water inlet.

[0062] 401 - first stirring disk, 402 - second stirring disk, 403 - third stirring disk.

[0063] 501 - first mixing flow baffle, 502 - second mixing flow baffle, 503 - third mixing flow baffle.

[0064] 1001 - frustum-shaped arc plate, 1002 - arc plate liquid leakage hole, 1003 - first conical plate, 1004 - second conical plate.

[0065] 1301 - Inner ring cabin air outlet, 1302 - Air distribution nozzle.

[0066] 1401 - Agitator central shaft, 1402 - Agitating plate, 1403 - Convex plate.

[0067] 40201 - Second shaft hole, 40202 - Second arc-shaped channel.

[0068] 40301 - Third shaft hole, 40302 - Third arc-shaped channel.

[0069] 100301 - First liquid leakage hole, 100302 - Second liquid leakage hole, 100303 - First conical plate support, 100304 - Rib plate.

[0070] 100401 - Limit shaft hole, 100402 - Arc-shaped diffusion baffle.

[0071] 10030301 - Central disk, 10030302 - Support rod, 10030303 - Rotating shaft hole, 10030304 - Rotating shaft.

[0072] The following further elaborates on the specific content of the present invention in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0073] It should be noted that all components and materials in the present invention, unless otherwise specified, are all components and materials known in the prior art. For example, the stirring vertical shaft adopts a known stirring vertical shaft.

[0074] In the present invention, the coal-based solid waste slurry and the solubilizing and activating components are collectively referred to as materials.

[0075] Complying with the above technical solutions, the following gives specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and any equivalent transformation made on the basis of the technical solutions of this application falls within the protection scope of the present invention.

[0076] Embodiment 1:

[0077] This embodiment provides a centrifugal continuous reaction device for carbon absorption of cementitious materials, as Figure 1 shown, including a reaction kettle 1. The top of the reaction kettle 1 is provided with a feeding port 101, the top of the reaction kettle 1 is also provided with a flue gas discharge port 102, the top of the reaction kettle 1 is further provided with an activator inlet port 103, a plurality of air distribution holes 104 are uniformly arranged along the circumferential direction on the side wall of the reaction kettle 1, and the bottom of the reaction kettle 1 is provided with a discharge port 105.

[0078] As Figure 2 and Figure 3As shown, it further includes a vertically arranged stirring vertical shaft 2, the stirring vertical shaft 2 is rotatably arranged in the reaction kettle 1, and multiple groups of stirring blades 3 are also arranged along the axial direction of the stirring vertical shaft 2, and each group of stirring blades 3 is evenly arranged along the circumferential direction of the stirring vertical shaft 2.

[0079] As Figure 2 shown, it further includes a plurality of horizontally arranged centrifugal stirring disks 4, each centrifugal stirring disk 4 is provided with a through hole at the center, and the stirring vertical shaft 2 is coaxially sleeved through the central through hole of each centrifugal stirring disk 4; each centrifugal stirring disk 4 is located between adjacent two groups of stirring blades 3.

[0080] As Figure 2 shown, a plurality of flow mixing baffles 5 are evenly arranged on the upper surface of each centrifugal stirring disk 4 around the stirring vertical shaft 2, one end of each flow mixing baffle 5 is close to the stirring vertical shaft 2, and one end of each flow mixing baffle 5 is far from the stirring vertical shaft 2.

[0081] In this embodiment, the shapes of the flow mixing baffles 5 are all arc-shaped, and the arc centers of the arc-shaped flow mixing baffles 5 are close to the stirring vertical shaft 2.

[0082] In this embodiment, the feed port 101 is used to introduce the coal-based solid waste slurry; the flue gas discharge port 102 is used to discharge the clean flue gas; the activator inlet port 103 is used to introduce the solubilizing and activating component; the gas distribution holes 104 are used to introduce CO 2 gas into the interior of the reaction kettle 1; the discharge port 105 is used to discharge the negative carbon gel material.

[0083] In this embodiment, there is a filter membrane in the discharge port 105 that can prevent CO 2 gas from discharging from the reaction kettle 1. The filter membrane includes a zeolite molecular sieve membrane, a carbon molecular sieve membrane, and a selectively permeable polymer composite membrane. The selectively permeable polymer composite membrane includes a polyimide PI membrane, a cellulose acetate CA membrane, a molecular sieve membrane, and a ceramic membrane.

[0084] In this embodiment, the solubilizing and activating component such as a surfactant is a component that can increase the solubility of other substances and enhance their activity in some chemical processes or material systems. The solubilizing and activating component is mainly used to improve the dissolution performance and reaction activity of substances to achieve better chemical effects.

[0085] In this embodiment, the number of the centrifugal stirring disks 4 is 3; the number of the flow mixing baffles 5 on the upper surface of each centrifugal stirring disk 4 is also 3.

[0086] In this embodiment, 8 groups of stirring blades 3 are also arranged along the axial direction of the stirring vertical shaft 2, and the 8 groups of stirring blades 3 are used for the coal-based solid waste slurry, the solubilizing and activating component, and CO in the reaction kettle 1 2The gas is sufficiently stirred and mixed to generate a negative carbon gel material; each set of stirring blades 3 has 3 stirring plates, and the plate surfaces of each stirring plate are inclined, and at the same time, the cross-sectional shape of each stirring plate is crescent-shaped to improve the stirring effect.

[0087] In this embodiment, the discharge port 105 is provided with an electromagnetic valve for controlling on and off.

[0088] In this embodiment, the bottom of the stirring vertical shaft 2 extends outside the reaction kettle 1, and the bottom of the stirring vertical shaft 2 is connected to the output end of the power member. The power member includes an internal combustion engine or an electric motor.

[0089] As a preferred solution of this embodiment, as Figure 2 shown, a plurality of centrifugal stirring disks 4 are sequentially divided into a first stirring disk 401, a second stirring disk 402, and a third stirring disk 403 from top to bottom.

[0090] As Figure 2 shown, the mixing flow baffle 5 is sequentially divided into a first mixing flow baffle 501, a second mixing flow baffle 502, and a third mixing flow baffle 503 from top to bottom.

[0091] As Figure 2 and Figure 4 shown, the central through hole of the first stirring disk 401 is the first shaft hole 6, and the stirring vertical shaft 2 passes through the first shaft hole 6 and is fixedly connected to the first stirring disk 401.

[0092] As Figure 2 shown, the gap between the outer edge of the first stirring disk 401 and the inner side wall of the reaction kettle 1 is the first annular channel 7.

[0093] In this embodiment, the first stirring disk 401, the second stirring disk 402, and the third stirring disk 403 are used to mix and stir the materials in the reaction kettle 1 three times sufficiently.

[0094] In this embodiment, the mixing flow baffle on the first stirring disk 401 is the first mixing flow baffle 501; the mixing flow baffle on the second stirring disk 402 is the second mixing flow baffle 502; the mixing flow baffle on the third stirring disk 403 is the third mixing flow baffle 503.

[0095] In this embodiment, the first annular channel 7 is a channel for the downward flow of the negative carbon gel material.

[0096] In this embodiment, the space between the first stirring disk 401 and the top of the reaction kettle 1 is the first reaction cavity. The negatively carbonated gel material that has been sufficiently mixed in the first reaction cavity flows downward through the first annular channel 7, and the unreacted materials gather in the middle of the first stirring disk 401 and continue to react.

[0097] As a preferred solution of this embodiment, as Figure 5As shown in the figure, the central through hole of the second stirring disk 402 is the second shaft hole 40201, and the stirring vertical shaft 2 passes through the second shaft hole 40201 and is fixedly connected to the second stirring disk 402.

[0098] As Figure 2 shown in the figure, the gap between the outer edge of the second stirring disk 402 and the inner side wall of the reaction kettle 1 is the second annular channel 8, and the width of the second annular channel 8 is smaller than the width of the first annular channel 7.

[0099] As Figure 5 shown in the figure, a plurality of second arc-shaped channels 40202 are also formed in the second stirring disk 402. The plurality of second arc-shaped channels 40202 are arranged uniformly in the circumferential direction. Each second arc-shaped channel 40202 is located outside the second mixing baffle 502, and each second arc-shaped channel 40202 penetrates through the upper and lower ends of the second stirring disk 402.

[0100] In this embodiment, the second annular channel 8 is a channel for the downward flow of the negative carbon gel material.

[0101] In this embodiment, the number of the second arc-shaped channels 40202 on the second stirring disk 402 is 4, and the second arc-shaped channels 40202 are channels for the downward flow of the negative carbon gel material.

[0102] In this embodiment, the space in the reaction kettle 1 between the first stirring disk 401 and the second stirring disk 402 is the second reaction chamber. The second reaction chamber is used to repeat the reaction process in the first reaction chamber, so that the fully reacted and formed negative carbon gel material continues to flow downward, and the unreacted materials gather in the middle of the second stirring disk 402 and continue to react.

[0103] As a preferred solution of this embodiment, as Figure 2 shown in the figure, the outer edge of the third stirring disk 403 is fixedly connected to the inner side wall of the reaction kettle 1. The central through hole of the third stirring disk 403 is the third shaft hole 40301, and there is a clearance fit between the third shaft hole 40301 and the stirring vertical shaft 2.

[0104] As Figure 6 shown in the figure, a plurality of third arc-shaped channels 40302 are also formed in the third stirring disk 403. The plurality of third arc-shaped channels 40302 are arranged uniformly in the circumferential direction. Each third arc-shaped channel 40302 is located outside the third mixing baffle 503, and each third arc-shaped channel 40302 penetrates through the upper and lower ends of the third stirring disk 403.

[0105] In this embodiment, the number of the third arc-shaped channels 40302 on the third stirring disk 403 is 3, and the third arc-shaped channels 40302 are channels for the downward flow of the negative carbon gel material.

[0106] As a preferred solution of this embodiment, asFigure 7 As shown, a support plate 9 is also coaxially sleeved on the vertical stirring shaft 2. The support plate 9 is fixedly connected to the vertical stirring shaft 2, and the lower surface of the support plate 9 is slidably connected to the upper surface of the third stirring disk 403.

[0107] In this embodiment, since the third stirring disk 403 is located at the bottommost of the plurality of centrifugal stirring disks 4, the weight of the reaction materials supported by the third stirring disk 403 is relatively large and the load is greater. At the same time, due to the certain viscosity of the negative carbon gel material, it is more difficult for the third stirring disk 403 to rotate. Therefore, the third stirring disk 403 is fixed to the inner wall of the reaction kettle 1 to reduce the deformation amount of the third stirring disk 403 and make the internal operation of the device more stable.

[0108] In this embodiment, in order to reduce the load in the middle of the third stirring disk 403 and avoid the middle part of the third stirring disk 403 from sinking and deforming, a support plate 9 is fixedly arranged on the vertical stirring shaft 2. The support plate 9 is located above the third stirring disk 403, and part of the weight of the reaction materials is applied to the vertical stirring shaft 2 through the support plate 9. The end of the vertical stirring shaft 7 is arranged on the reaction kettle 1 through a bearing.

[0109] As a preferred solution of this embodiment, as Figure 7 shown, a plurality of bottom stirrers 14 are also arranged on the vertical stirring shaft 2. The plurality of bottom stirring plates 14 are respectively located at the top and bottom of the third stirring disk 403.

[0110] As Figure 8 shown, each bottom stirrer 14 includes a stirrer central shaft 1401. The stirrer central shaft 1401 is coaxially sleeved and fixedly connected to the vertical stirring shaft 2. A plurality of stirring plates 1402 are evenly arranged along the circumferential direction on each stirrer central shaft 1401. Each stirring plate 1402 is arranged radially, and a convex plate 1403 extending downward is arranged at one end of each stirring plate 1402 away from the vertical stirring shaft 2.

[0111] In this embodiment, the convex plate 1403 arranged on each stirring plate 1402 can not only reduce the rotation resistance but also achieve the purpose of stirring.

[0112] As a preferred solution of this embodiment, as Figure 2 shown, the feeding port 101 is located at the center of the top of the reaction kettle 1. A water inlet 106 is also opened near the center of the top of the reaction kettle 1. A diffusion assembly 10 is arranged in the reaction kettle 1. The diffusion assembly 10 is coaxially arranged at the top of the vertical stirring shaft 2.

[0113] As Figure 9As shown in the figure, the diffusion assembly 10 includes an inverted frustum-shaped arc plate 1001. The interior of the frustum-shaped arc plate 1001 is hollow and both the upper and lower ends are open. The large-diameter end of the frustum-shaped arc plate 1001 is fixedly connected to the inner wall of the reactor 1. A plurality of arc plate liquid leakage holes 1002 are also formed on the frustum-shaped arc plate 1001, and the plurality of arc plate liquid leakage holes 1002 are evenly arranged circumferentially along the side wall of the frustum-shaped arc plate 1001.

[0114] As Figure 9 shown in the figure, the diffusion assembly 10 further includes a first conical plate 1003 with a hollow interior and both upper and lower ends open. The center of the cone at the top of the first conical plate 1003 is close to the feeding port 101. The upper half of the first conical plate 1003 is located inside the frustum-shaped arc plate 1001, and the outer surface of the first conical plate 1003 is fixedly connected to the small-diameter end of the frustum-shaped arc plate 1001.

[0115] As Figure 9 shown in the figure, a plurality of first liquid leakage holes 100301 are also formed on the first conical plate 1003 located inside the frustum-shaped arc plate 1001, and the plurality of first liquid leakage holes 100301 are evenly arranged circumferentially.

[0116] As Figure 9 shown in the figure, a plurality of second liquid leakage holes 100302 are also formed on the lower half of the first conical plate 1003, and the plurality of second liquid leakage holes 100302 are evenly arranged circumferentially.

[0117] As Figure 9 shown in the figure, a plurality of rib plates 100304 are evenly arranged circumferentially on the surface of the lower half of the first conical plate 1003. Each rib plate 100304 is arranged along the generatrix of the first conical plate 1003; one end of each rib plate 100304 contacts the frustum-shaped arc plate 1001, and the other end of each rib plate 100304 extends to the lower edge of the first conical plate 1003.

[0118] In this embodiment, the diffusion assembly 10 is used to evenly distribute the coal-based solid waste slurry.

[0119] In this embodiment, the water inlet 106 is used to promote the generation of the negative-carbon gel material and adjust the concentration of the mixed negative-carbon gel material, and the water inflow is determined according to the actual reaction conditions on site.

[0120] In this embodiment, the coal-based solid waste slurry flowing in through the feeding port 101 can impact the outer surface of the first conical plate 1003. Part of the coal-based solid waste slurry flows to the lower part inside the first conical plate 1003 through a plurality of first liquid leakage holes 100301 at the top of the first conical plate 1003. At the same time, part of the coal-based solid waste slurry flows along the outer surface of the first conical plate 1003, is blocked by the frustum-shaped arc plate 1001, and continues to flow to the outer surface of the first conical plate 1003 through a plurality of arc plate liquid leakage holes 1002 on the frustum-shaped arc plate 1001, and then flows to the lower part inside the first conical plate 1003 through a plurality of second liquid leakage holes 100302 below the first conical plate 1003 or continues to flow along the outer surface of the first conical plate 1003.

[0121] In this embodiment, two adjacent rib plates 100304 form a channel for the coal-based solid waste slurry to flow through.

[0122] As a preferred solution of this embodiment, as Figure 10 and Figure 11 shown, a first conical plate support 100303 is coaxially arranged inside the first conical plate 1003. The first conical plate support 100303 includes a central disc 10030301, and a plurality of support rods 10030302 are evenly distributed along the circumference of the central disc 10030301. One end of each support rod 10030302 is fixedly connected to the central disc 10030301, and the other end of each support rod 10030302 is fixedly connected to the inner wall of the first conical plate 1003. A rotation shaft hole 10030303 is also opened at the center of the central disc 10030301, and one end of a rotation shaft 10030304 is connected to the rotation shaft hole 10030303 through a bearing.

[0123] As Figures 11 to 13 shown, the other end of the rotation shaft 10030304 is fixedly connected to the top of a coaxially arranged second conical plate 1004. The inside of the second conical plate 1004 is hollow and the bottom is open. A limit shaft hole 100401 is arranged on the inner side of the top of the second conical plate 1004, and the second conical plate 1004 is fixedly connected to the top of the stirring vertical shaft 2 through the limit shaft hole 100401.

[0124] As Figures 11 to 13 shown, a plurality of arc-shaped diffusion baffles 100402 are also evenly distributed along the circumference of the outer surface of the second conical plate 1004. One end of each arc-shaped diffusion baffle 100402 is located at the center of the top of the second conical plate 1004, and the other end of each arc-shaped diffusion baffle 100402 is located on the bottom edge of the second conical plate 1004.

[0125] In this embodiment, the first conical plate bracket 100303 can limit the polarization of the rotating shaft 10030304 and the stirring vertical shaft 2, so that the second conical plate 1004 rotates stably driven by the stirring vertical shaft 2. During the rotation of the second conical plate 1004, the coal-based solid waste slurry flowing onto the upper surface of the second conical plate 1004 is dispersed by a plurality of arc-shaped diffusion baffles 100402. One end of each arc-shaped diffusion baffle 100402 is close to the rotating shaft 10030304, and the other end is close to the edge of the second conical plate 1004.

[0126] As a preferred solution of this embodiment, as Figure 2 shown, two hollow outer ring cabins 11 are coaxially sleeved and fixedly connected to the outer side wall of the reaction kettle 1. The two outer ring cabins 11 are respectively located on the upper and lower sides of the side wall of the reaction kettle 1. The two outer ring cabins 11 are respectively connected in communication with two circles of air distribution holes 104 one by one. As Figure 14 shown, an air inlet port 12 is provided on the outer side wall of each outer ring cabin 11.

[0127] As Figure 2 shown, two hollow inner ring cabins 13 are coaxially sleeved and fixedly connected to the inner side wall of the reaction kettle 1. The two inner ring cabins 13 are respectively connected in communication with two circles of air distribution holes 104 one by one. As Figure 15 and Figure 16 shown, a plurality of inner ring cabin air outlet holes 1301 are circumferentially formed at the top of each inner ring cabin 13, and an air distribution nozzle 1302 is provided on each inner ring cabin air outlet hole 1301.

[0128] In this embodiment, the two circles of air distribution holes 104 are respectively arranged on the upper and lower sides of the side wall of the reaction kettle 1. The purpose of arranging a circle of air distribution holes 104 on both the upper and lower sides of the reaction kettle 1 is to ensure that there is sufficient CO 2 gas on both the upper and lower sides inside the reaction kettle 1, avoiding the problem of insufficient reaction. Among them, the air inlet port 12 introduces CO 2 gas into the outer ring cabin 11, and the CO 2 gas in the outer ring cabin 11 then flows into the corresponding inner ring cabin 13 through a plurality of uniformly distributed air distribution holes 104. The inner ring cabin 13 realizes uniformly introducing sufficient CO 2 gas into the reaction kettle 1 through the air distribution nozzles 1302 on a plurality of uniformly distributed inner ring cabin air outlet holes 1301. The outer ring cabin air outlet 12 is connected to the corresponding inner ring cabin air inlet 1301 through a pipeline.

[0129] In this embodiment, the air distribution nozzle 1302 is an air distribution nozzle with a flat air outlet end, which can increase the pressure at the air outlet end of the air distribution nozzle 1302 and prevent materials and slurry negative carbon gel materials from entering the air distribution nozzle 1302 or blocking the air distribution nozzle 1302.

[0130] The principle and working process of the device in this embodiment are as follows: under the action of the stirring blade 3, the material moves downward in a spiral as a whole, and the more fully the material reacts, the greater the density of the generated negative carbon gel material. Under the action of the rotating centrifugal force, the particles with a higher density of the preferentially generated negative carbon gel material are mainly distributed in the peripheral area of ​​the centrifugal stirring disk 4, and the particles with a lower density of the unreacted material particles are close to and gathered toward the central area of ​​the centrifugal stirring disk 4. The mixed flow baffle 5 on the centrifugal stirring disk 4 realizes the material being moved toward the central area of ​​the centrifugal stirring disk 4.

[0131] Since the space in the center area of ​​the centrifugal stirring disk 4 is limited, the height of the accumulated materials increases, and the diameter range of the accumulated materials increases. After reaching a certain height and a certain range, the materials collapse and cross the upper edge of the mixed flow baffle 5. The above process of material aggregation, height increase, collapse and crossing the upper edge of the mixed flow baffle 5 allows the materials that have not been fully reacted to react with CO again. 2 The gas is fully mixed into the negative carbon gel material with relatively large density particles, and is distributed on the edge of the centrifugal stirring disk 4 again due to the centrifugal force, and moves downward.

[0132] Multiple centrifugal stirring disks 4 cooperate with multiple mixing flow baffles 5 to reduce the content of materials that have not fully reacted in the discharged negative carbon gel material and increase the reaction efficiency of the material in the reactor 1. When the device is in use, the closer the negative carbon gel material is to the discharge port 105, the better the quality and the fewer the particles of materials that have not fully reacted inside.

[0133] Therefore, the device can realize discharging during the feeding process, the material mixing is more uniform, the discharged negative carbon gel material is of higher quality, the time for discharging the negative carbon gel material is shortened, the speed of grouting filling is accelerated, and the construction period is shortened.

[0134] Embodiment 2:

[0135] This embodiment provides a method for a continuous centrifugal reaction of carbon absorption in a gelling material, which is implemented by the continuous centrifugal reaction device for carbon absorption in a gelling material in Embodiment 1. The method specifically comprises the following steps:

[0136] Step 1: block the discharge port 105 and control the rotation of the stirring vertical shaft 2.

[0137] Step 2: The feed port 101 is connected to the pipeline for introducing the coal-based solid waste slurry, the activator inlet port 103 is connected to the pipeline for adding the solubilizing activation component, and the air inlet port 12 is connected to introduce CO into the reactor 1. 2 The gas pipeline is used to introduce the coal-based solid waste slurry, the solubilized activation component and CO into the reactor 1 respectively. 2 gas.

[0138] Step 3: Keep the stirring vertical shaft 2 rotating and conduct the reaction. During the reaction, the flue gas discharge port 102 continuously discharges clean flue gas, and at the same time, clean water can be added through the water inlet 106.

[0139] Step 4: After the reaction ends, the coal-based solid waste slurry, solubilization activation component, and CO 2 gas in the reaction kettle 1 are mixed and react to obtain a negative carbon gel material. Open the discharge port 105 to discharge the negative carbon gel material; then, continuously introduce the coal-based solid waste slurry, solubilization activation component, and CO 2 gas into the reaction kettle 1 in sequence to enable the discharge port 105 to continuously discharge the negative carbon gel material.

[0140] Step 5: When the use is finished, stop introducing the coal-based solid waste slurry, solubilization activation component, and CO 2 gas, and empty the negative carbon gel material in the reaction kettle 1.

Claims

1. A centrifugal continuous reaction device for carbon absorption of gelling materials, comprising a reaction kettle (1), characterized in that: The top of the reactor (1) is provided with a material inlet port (101), the top of the reactor (1) is also provided with a smoke exhaust port (102), the top of the reactor (1) is also provided with an activator inlet port (103), the side wall of the reactor (1) is also provided with a plurality of air distribution holes (104) evenly distributed along the circumference, and the bottom of the reactor (1) is also provided with a material outlet port (105); It also comprises a vertically arranged stirring shaft (2), wherein the stirring shaft (2) is rotatably arranged in the reactor (1), and a plurality of groups of stirring blades (3) are arranged along the axial direction of the stirring shaft (2), and each group of stirring blades (3) is evenly arranged along the circumference of the stirring shaft (2); It also comprises a plurality of centrifugal stirring discs (4) arranged horizontally, each centrifugal stirring disc (4) having a through hole at its center, and the stirring vertical axis (2) is coaxially mounted through the central through hole of each centrifugal stirring disc (4); each centrifugal stirring disc (4) is located between two adjacent groups of stirring blades (3); The upper surface of each centrifugal stirring disk (4) is evenly provided with a plurality of mixing flow baffles (5) around the stirring vertical axis (2), one end of each mixing flow baffle (5) is close to the stirring vertical axis (2), and one end of each mixing flow baffle (5) is far away from the stirring vertical axis (2).

2. The gelling material carbon absorption centrifugal continuous reaction device according to claim 1, characterized in that: The plurality of centrifugal stirring disks (4) are divided into a first stirring disk (401), a second stirring disk (402) and a third stirring disk (403) from top to bottom; The mixed flow baffle (5) is divided into a first mixed flow baffle (501), a second mixed flow baffle (502) and a third mixed flow baffle (503) from top to bottom; The central through hole of the first stirring disk (401) is a first axial hole (6), and the stirring vertical shaft (2) passes through the first axial hole (6) and is fixedly connected to the first stirring disk (401); The gap between the outer edge of the first stirring plate (401) and the inner wall of the reaction kettle (1) is the first annular channel (7).

3. The gelling material carbon absorption centrifugal continuous reaction device according to claim 2, characterized in that: The central through hole of the second stirring disk (402) is a second axial hole (40201), and the stirring vertical shaft (2) passes through the second axial hole (40201) and is fixedly connected to the second stirring disk (402); The gap between the outer edge of the second stirring plate (402) and the inner wall of the reaction kettle (1) is a second annular channel (8), and the width of the second annular channel (8) is smaller than the width of the first annular channel (7); The second stirring disk (402) is also provided with a plurality of second arc-shaped channels (40202), which are evenly arranged along the circumference, and each second arc-shaped channel (40202) is located on the outside of the second mixing baffle (502), and each second arc-shaped channel (40202) runs through the upper and lower ends of the second stirring disk (402).

4. The gelling material carbon absorption centrifugal continuous reaction device as claimed in claim 2, characterized in that: The outer edge of the third stirring disk (403) is fixedly connected to the inner wall of the reaction kettle (1), the central through hole of the third stirring disk (403) is a third shaft hole (40301), and the third shaft hole (40301) and the stirring vertical shaft (2) are clearance-fitted; The third stirring disk (403) is also provided with a plurality of third arc-shaped channels (40302), which are evenly arranged along the circumference, and each third arc-shaped channel (40302) is located on the outside of the third mixed flow baffle (503), and each third arc-shaped channel (40302) runs through the upper and lower ends of the third stirring disk (403).

5. The gelling material carbon absorption centrifugal continuous reaction device as claimed in claim 2, characterized in that: The stirring vertical shaft (2) is also coaxially mounted with a support plate (9), the support plate (9) is fixedly connected to the stirring vertical shaft (2), and the lower surface of the support plate (9) is slidably connected to the upper surface of the third stirring disk (403).

6. The centrifugal continuous reaction device for carbon absorption of gelling materials as claimed in claim 2, characterized in that: The stirring vertical shaft (2) is also provided with a plurality of bottom stirrers (14), and the plurality of bottom stirring plates (14) are respectively located at the top and the bottom of the third stirring plate (403); Each bottom agitator (14) comprises an agitator central axis (1401), which is coaxially mounted and fixedly connected to the agitator vertical axis (2). A plurality of agitator plates (1402) are evenly arranged along the circumference of each agitator central axis (1401), each agitator plate (1402) is arranged radially, and a convex plate (1403) extending downward is arranged at one end of each agitator plate (1402) away from the agitator vertical axis (2).

7. The gelling material carbon absorption centrifugal continuous reaction device according to claim 1, characterized in that: The feed port (101) is located at the top center of the reactor (1), and a water inlet (106) is also provided near the center of the top of the reactor (1). A diffusion component (10) is also provided in the reactor (1), and the diffusion component (10) is coaxially arranged at the top of the stirring vertical shaft (2); The diffusion assembly (10) comprises an inverted truncated cone-shaped arc plate (1001), the interior of the truncated cone-shaped arc plate (1001) is hollow and both upper and lower ends are open, the large diameter end of the truncated cone-shaped arc plate (1001) is fixedly connected to the inner wall of the reaction kettle (1), and a plurality of arc plate leakage holes (1002) are also provided on the truncated cone-shaped arc plate (1001), and the plurality of arc plate leakage holes (1002) are evenly arranged along the circumference of the side wall of the truncated cone-shaped arc plate (1001); The diffusion assembly (10) further comprises a first conical plate (1003) which is hollow inside and open at both ends, the center of the cone at the top of the first conical plate (1003) is close to the feed port (101), the upper half of the first conical plate (1003) is located inside the truncated cone-shaped arc plate (1001), and the outer surface of the first conical plate (1003) is fixedly connected to the small diameter end of the truncated cone-shaped arc plate (1001); The first conical plate (1003) located inside the truncated cone-shaped arc plate (1001) is also provided with a plurality of first liquid leakage holes (100301), and the plurality of first liquid leakage holes (100301) are evenly arranged along the circumferential direction; A plurality of second liquid leakage holes (100302) are also provided on the lower half of the first conical plate (1003), and the plurality of second liquid leakage holes (100302) are evenly distributed along the circumferential direction; The lower half surface of the first conical plate (1003) is also evenly provided with a plurality of ribs (100304) along the circumferential direction, and each rib (100304) is arranged along the generatrix of the first conical plate (1003); one end of each rib (100304) is in contact with the truncated cone-shaped arc plate (1001), and the other end of each rib (100304) extends to the lower edge of the first conical plate (1003).

8. The centrifugal continuous reaction device for carbon absorption of gelling materials as claimed in claim 7, characterized in that: A first conical plate bracket (100303) is coaxially arranged inside the first conical plate (1003), and the first conical plate bracket (100303) includes a central disk (10030301), and a plurality of support rods (10030302) are evenly arranged along the circumference of the central disk (10030301), one end of each support rod (10030302) is fixedly connected to the central disk (10030301), and the other end of each support rod (10030302) is fixedly connected to the inner wall of the first conical plate (1003), and a rotating shaft hole (10030303) is also opened at the center of the central disk (10030301), and the rotating shaft hole (10030303) is connected to one end of the rotating shaft (10030304) through a bearing; The other end of the rotating shaft (10030304) is fixedly connected to the top of a coaxially arranged second conical plate (1004); the interior of the second conical plate (1004) is hollow and the bottom is open; a limiting shaft hole (100401) is arranged on the inner side of the top of the second conical plate (1004); the second conical plate (1004) is fixedly connected to the top of the stirring vertical shaft (2) through the limiting shaft hole (100401); The outer surface of the second conical plate (1004) is also evenly distributed with a plurality of arc-shaped diffusion baffles (100402) along the circumferential direction, one end of each arc-shaped diffusion baffle (100402) is located at the top center of the second conical plate (1004), and the other end of each arc-shaped diffusion baffle (100402) is located on the bottom edge of the second conical plate (1004).

9. The gelling material carbon absorption centrifugal continuous reaction device according to claim 1, characterized in that: Two outer ring cabins (11) with hollow interiors are coaxially mounted and fixedly connected to the outer side wall of the reactor (1), and the two outer ring cabins (11) are respectively located at the upper and lower sides of the side wall of the reactor (1); the two outer ring cabins (11) are respectively connected to the two circles of air distribution holes (104) in a one-to-one correspondence, and an air inlet port (12) is arranged on the outer side wall of each outer ring cabin (11); Two inner annular chambers (13) with hollow interiors are coaxially mounted and fixedly connected to the inner side wall of the reactor (1). The two inner annular chambers (13) are respectively connected to two circles of air distribution holes (104) in a one-to-one correspondence. A plurality of inner annular chamber air outlets (1301) are also provided on the top of each inner annular chamber (13) along the circumferential direction, and an air distribution nozzle (1302) is also provided on each inner annular chamber air outlet (1301).

10. A method for continuous centrifugal reaction of carbon absorption of gelling materials, characterized in that: The method is implemented by using the gelling material carbon absorption centrifugal continuous reaction device as described in any one of claims 1 to 9.

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