Carbon neutralization apparatus for producing calcium carbonate using co2

Abstract

The utility model relates to a chemical industry technical field, specifically is a kind of carbon neutralization equipment for preparing calcium carbonate using CO2, including reaction tank, the reaction tank includes jar body and jar cover, the jar cover is installed in jar body top, the dispersion assembly is arranged in the jar body, the exhaust component is arranged in the jar body inner bottom, the dispersion assembly includes rotating rod, several groups of stirring vane are installed on the rotating rod by key pin, the shaft sleeve top end outer periphery of stirring vane is provided with buffer gas disc, the buffer gas disc includes two groups of symmetrically arranged semicircular disc body, the center of the semicircular disc body is fixedly provided with collet, the inside of collet is provided with protruding clamping block, the outer periphery surface of the shaft sleeve of stirring vane is provided with the recess corresponding with protruding clamping block.The stirring vane in dispersion assembly and buffer gas disc synergistic effect, through the rotation of stirring vane and the concave-convex lines of buffer gas disc, form turbulent flow in jar body, significantly enhance the mixing effect of CO2 gas and reaction liquid, such as calcium ion solution, shorten reaction time.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to a carbon neutralization device for preparing calcium carbonate using CO2. Background Technology

[0002] Calcium carbonate can be prepared from CO2 through a reaction with calcium oxide or calcium hydroxide. At room temperature, passing CO2 into moist calcium oxide produces calcium carbonate; or passing CO2 into clear limewater (calcium hydroxide solution) produces a white calcium carbonate precipitate. Calcium carbonate is widely used in building materials, plastics, rubber, papermaking, and pharmaceutical industries.

[0003] Existing methods for preparing calcium carbonate suffer from problems such as low CO2 utilization, poor reaction efficiency, and easy backflow of gas leading to equipment corrosion. In addition, there are risks of uneven gas dispersion and liquid reflux. Therefore, a carbon neutralization device for preparing calcium carbonate using CO2 is proposed. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a carbon neutralization device for preparing calcium carbonate using CO.

[0005] The technical solution adopted by this utility model to solve its technical problem is a carbon neutralization device for preparing calcium carbonate using CO, including a reaction vessel. The reaction vessel includes a vessel body and a vessel cover. The vessel cover is installed on the top of the vessel body. A dispersion component is provided inside the vessel body, and an exhaust component is provided at the bottom of the vessel body.

[0006] The dispersing component includes a rotating rod, on which several sets of stirring blades are mounted via key pins. A venting disc is provided on the outer periphery of the top end of the bushing of each stirring blade. The venting disc includes two symmetrically arranged semi-circular discs. A retaining sleeve is fixedly mounted at the center of each semi-circular disc, and a protruding retaining block is provided on the inner side of the retaining sleeve. A recess corresponding to the protruding retaining block is formed on the outer periphery of the bushing of each stirring blade. The retaining sleeves of the two sets of semi-circular discs are respectively engaged on the outer periphery of the top end of the bushing of the stirring blade, and bolt holes are formed on the retaining sleeves. The bolt holes of adjacent retaining sleeves are fixed together by bolts.

[0007] By adopting the above technical solution, the stirring blades and the easing plate in the dispersion component work together to form turbulence in the tank through the rotation of the stirring blades and the concave and convex texture of the easing plate, which significantly enhances the mixing effect of CO2 gas and reaction liquid such as calcium ion solution and shortens the reaction time.

[0008] Specifically, the bottom of the semi-circular disk is provided with several sets of convex and concave textures for turbulence.

[0009] By adopting the above technical solution, the air venting disc composed of semi-circular discs adopts a split design with two sets of semi-circular discs, which are fixed by clamps and bolts, making it easy to disassemble and replace and reducing maintenance costs.

[0010] Specifically, a motor is installed on the top of the can lid, the drive end of the motor is connected to the rotating shaft of the rotating rod, a feeding port is provided on the top of the can lid, and a discharge valve is provided at the center of the bottom of the can body.

[0011] Specifically, the exhaust assembly includes a chassis with a hollow internal structure, the top surface of the chassis is shaped like a pot lid, the bottom of the chassis is provided with several sets of support legs, and the bottom of the support legs of the chassis is welded to the bottom of the tank body. A carbon dioxide intake pipe is connected to the bottom of one side of the tank body, and the exhaust end of the carbon dioxide intake pipe is connected to the bottom of the chassis and communicates with the hollow internal structure of the chassis.

[0012] Specifically, the top of the chassis has several sets of exhaust holes, the top of the exhaust holes is covered with a disc-shaped cover, the bottom of the disc-shaped cover is connected to a spring, and the bottom of the spring is welded to the bottom of the exhaust hole.

[0013] By adopting the above technical solution, the pot lid-shaped raised base on the top surface allows for a wider exhaust angle between the exhaust holes, which facilitates the dispersion of bubbles. The exhaust assembly's base, through a spring-controlled disc-shaped cover, enables the exhaust holes to form a one-way exhaust state. After exhaust stops, the disc-shaped cover is pulled back by the spring to cover the exhaust holes, preventing the reaction liquid from flowing back into the air inlet pipe.

[0014] The beneficial effects of this invention are as follows: Through the mechanism composed of a reaction vessel, a dispersion component, and an exhaust component, the synergistic design of the dispersion component and the exhaust component significantly improves the mixing efficiency of CO2 and calcium ion solution. The gas buffer plate can temporarily isolate and store rising bubbles, shortening the speed of bubble rise and increasing the contact reaction time between CO2 gas and calcium source slurry, promoting CO2 dissolution and rapid precipitation of calcium carbonate. The spring-controlled disc cover enables intermittent gas release, avoiding liquid backflow and ensuring uniform distribution. The equipment has a stable structure, is easy to maintain, supports continuous production, and has both environmental benefits and economic value. It is suitable for large-scale industrial production of high-purity calcium carbonate, solving the problems of low CO2 utilization and poor reaction efficiency in existing calcium carbonate production. At the same time, the automated stirring and continuous production mode overcomes the defects of low efficiency in traditional batch reactions, significantly improving product quality and production stability. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the dispersion component of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the chassis of this utility model;

[0021] Figure 6 This is a schematic diagram of the bottom of the air venting plate of this utility model;

[0022] Figure 7 This is a schematic diagram of the cross-section of the exhaust port of this utility model;

[0023] Figure 8 This is a schematic diagram of the bottom of the disc-shaped cover of this utility model;

[0024] In the diagram: reaction vessel 1, vessel body 11, vessel cover 12, discharge valve 13, dispersion assembly 2, rotating rod 21, stirring blade 221, ferrule 232, venting plate 23, semi-circular disc 231, raised locking block 233, bolt hole 234, textured surface 235, chassis 4, exhaust port 41, disc-shaped cover 42, spring 43, carbon dioxide inlet pipe 5. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-8 As shown, the carbon neutralization device for preparing calcium carbonate using CO2 according to this utility model includes a reaction tank 1. The reaction tank 1 includes a tank body 11 and a tank cover 12. The tank cover 12 is installed on the top of the tank body 11. A dispersion component 2 is provided inside the tank body 11. An exhaust component is provided at the bottom of the tank body 11.

[0027] The dispersion component 2 includes a rotating rod 21, on which several sets of stirring blades 221 are mounted via key pins. A venting disc 23 is provided on the outer periphery of the top end of the bushing of the stirring blade 221. The venting disc 23 includes two sets of symmetrically arranged semi-circular discs 231. A retainer 232 is fixedly provided at the center of the semi-circular disc 231. A protruding retaining block 233 is provided on the inner side of the retainer 232. A notch corresponding to the protruding retaining block 233 is opened on the outer periphery of the bushing of the stirring blade 221. The retainers 232 of the two sets of semi-circular discs 231 are respectively engaged on the outer periphery of the top end of the bushing of the stirring blade 221, and bolt holes 234 are opened on the retainers 232. The bolt holes 234 of adjacent retainers 232 are fixed together by bolts.

[0028] This utility model also includes that the bottom of the semi-circular disk 231 is provided with several sets of convex and concave textures 235 for turbulence.

[0029] By adopting the above technical solution, the air venting disc composed of the semi-circular disc 231 adopts a split design with two sets of semi-circular discs, which are fixed by clamps and bolts, making it easy to disassemble and replace and reducing maintenance costs.

[0030] The present invention also includes a motor 3 installed on the top of the can lid 12, the drive end of the motor 3 being connected to the rotating shaft of the rotating rod 21, a feeding port being provided on the top of the can lid 12, and a discharge valve 13 being provided at the center of the bottom of the can body 11.

[0031] This utility model also includes an exhaust assembly comprising a chassis 4 with a hollow internal structure, the top surface of the chassis 4 being a pot lid-shaped protrusion, a plurality of support legs being provided at the bottom of the chassis 4, and the bottom of the support legs of the chassis 4 being welded to the bottom of the tank body 11, a carbon dioxide intake pipe 5 being connected to one side of the bottom of the tank body 11, the exhaust end of the carbon dioxide intake pipe 5 being connected to the bottom of the chassis 4 and communicating with the hollow internal structure of the chassis 4.

[0032] The present invention also includes that the top of the chassis 4 is provided with a plurality of exhaust holes 41, the top of the exhaust holes 41 is covered with a disc-shaped cover 42, the bottom of the disc-shaped cover 42 is connected with a spring 43, and the bottom of the spring 43 is welded to the bottom of the exhaust hole 41.

[0033] In use, the pot lid-shaped raised base 4 on the top surface makes the exhaust angle between the exhaust holes 41 wider, which is conducive to the dispersion of bubbles. The exhaust hole 41 can be in a one-way exhaust state through the disc-shaped cover controlled by the spring through the base of the exhaust component. After the exhaust stops, the disc-shaped cover 42 is pulled back by the spring 43 to cover the exhaust hole 41, preventing the reaction liquid from flowing back into the air inlet pipe.

[0034] In use, the feed end of the tank 11 is connected to the feed pipe of the calcium source slurry in the work site, and a bracket is added to the bottom of the reaction tank 1 to fix it to the work site, or the tank 11 of the reaction tank 1 is fixed to the second floor of the work workshop through the mounting ears, the inlet end of the carbon dioxide inlet pipe 5 is connected to the carbon dioxide supply pipe in the work site, the discharge valve 13 is connected to the feed end of the calcium carbonate drying and separation equipment, and the electrical equipment in this application is powered by the power supply component in the work site.

[0035] During the neutralization process, calcium source slurry, such as calcium chloride solution, is injected into the tank 11 through the feed port of the tank cover 12. The carbon dioxide inlet pipe 5 is opened, and CO2 gas is introduced into the chassis 4. The gas is released slowly into the bottom of the tank in the form of tiny bubbles through the exhaust port 41, which pushes open the disc-shaped cover 42. The motor 3 is started, which drives the rotating rod 21 to rotate the stirring blade 221 and the gas-releasing plate 23. The stirring blade 221 promotes the mixing of bubbles and calcium source slurry, and the concave and convex texture 235 of the gas-releasing plate shortens the speed of bubble rise and increases the contact reaction time between CO2 gas and calcium source slurry. After the reaction is completed, calcium carbonate precipitates and settles at the bottom of the tank. After the discharge valve 13 is opened, the precipitate is discharged through the discharge valve 13 until it enters the calcium carbonate drying and separation equipment for the next process. After centrifugation or filtration, the product is dried to obtain high-purity calcium carbonate.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A carbon neutralization apparatus for preparing calcium carbonate using CO2, characterized in that, The reaction vessel (1) includes a tank body (11) and a tank cover (12). The tank cover (12) is installed on the top of the tank body (11). A dispersion component (2) is provided inside the tank body (11). An exhaust component is provided at the bottom of the tank body (11). The dispersion component (2) includes a rotating rod (21), on which several sets of stirring blades (221) are mounted by key pins. A venting disc (23) is provided on the outer periphery of the top end of the bushing of the stirring blade (221). The venting disc (23) includes two sets of symmetrically arranged semi-circular discs (231). A retainer (232) is fixedly provided at the center of the semi-circular disc (231). A protruding retaining block (233) is provided on the inner side of the retainer (232). A notch corresponding to the protruding retaining block (233) is opened on the outer periphery of the bushing of the stirring blade (221). The retainers (232) of the two sets of semi-circular discs (231) are respectively engaged on the outer periphery of the top end of the bushing of the stirring blade (221). Bolt holes (234) are opened on the retainers (232). The bolt holes (234) of adjacent retainers (232) are fixed together by bolts.

2. The carbon neutralization apparatus for preparing calcium carbonate using CO2 according to claim 1, characterized in that, The bottom of the semi-circular disk (231) is provided with several sets of convex and concave textures (235) for turbulence control.

3. The carbon neutralization apparatus for preparing calcium carbonate using CO2 according to claim 2, characterized in that, A motor (3) is installed on the top of the can lid (12). The drive end of the motor (3) is connected to the rotating shaft of the rotating rod (21). A feeding port is provided on the top of the can lid (12). A discharge valve (13) is provided at the center of the bottom of the can body (11).

4. The carbon neutralization apparatus for preparing calcium carbonate using CO2 according to claim 3, characterized in that, The exhaust assembly includes a chassis (4) with a hollow internal structure. The top surface of the chassis (4) is shaped like a pot lid. The bottom of the chassis (4) is provided with several sets of support legs. The bottom of the support legs of the chassis (4) is welded to the bottom of the tank (11). A carbon dioxide intake pipe (5) is connected to the bottom of one side of the tank (11). The exhaust end of the carbon dioxide intake pipe (5) is connected to the bottom of the chassis (4) and communicates with the hollow internal structure of the chassis (4).

5. A carbon neutralization apparatus for preparing calcium carbonate using CO2 according to claim 4, characterized in that, The chassis (4) has several sets of exhaust holes (41) on its top. The exhaust holes (41) are covered with disc-shaped covers (42). The bottom of the disc-shaped covers (42) is connected to a spring (43). The bottom of the spring (43) is welded to the bottom of the exhaust hole (41).

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