Pre-curing and mineralization reaction system and control method for industrial solid waste mineralized CO2

Abstract

The present application relates to solid waste resource technology field, specifically disclose a kind of industrial solid waste mineralization CO2 Pre-curing and mineralization reaction system and control method, including the reaction kettle being formed with closed cavity and being used for pre-curing and mineralization of shaped billet, flow guide component is arranged in the reaction kettle and carries out flow guide to flue gas, atomization water supply component is installed on the reaction kettle and is used for pre-curing and water supply cooling of shaped billet;Gas inlet unit, gas outlet and blowdown are provided on the reaction kettle;Flue gas enters the reaction kettle and reacts with shaped billet by gas inlet unit, then is discharged by gas outlet;Condensate formed during reaction is discharged from blowdown.It and its control method are disclosed, the present application combines pre-curing area and mineralization reaction area, compared with prior art, reduce the floor area, simple structure, strong practicality.Can improve the uniformity of flue gas distribution in the reaction kettle, increase contact reaction probability, improve the efficiency and product quality of mineralization reaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solid waste resource utilization, more particularly to a pre-curing and mineralization reaction system for industrial solid waste mineralization of CO2. BACKGROUND

[0002] Carbon dioxide capture, utilization and storage technology is considered as a key technology to alleviate climate change and protect the human living environment. Among them, CO2 mineralization technology uses alkaline metals in industrial solid waste / natural minerals to react with CO2 to generate stable carbonates to fix CO2, which has the advantages of low cost, large scale and long-term stability, and has broad application prospects.

[0003] At present, the industrial solid waste mineralization CO2 curing building material technology is actively promoted. However, in the process of engineering scale-up application, the industrial solid waste mineralization CO2 curing building material technology still has the following problems: 1) the direct carbonation reaction has a slow reaction rate at normal temperature and pressure, and usually needs to be carried out under high temperature and pressure, which requires high energy consumption; 2) the gas source is mainly high-concentration or captured and purified CO2, which leads to the decline of the economic efficiency of the technology; 3) mass transfer is a key factor affecting mineralization storage, and mass transfer process strengthening is mainly process development research, and mineralization reaction kettle equipment research is less; 4) the mineralization reaction kettle generally uses traditional horizontal curing kettle, and the pre-curing and mineralization reaction are set in different zones, which occupies a large area; 5) the mineralization reaction releases a large amount of heat, and the temperature in the mineralization reaction kettle and the moisture in the mineralization raw materials are uncontrollable, which reduces the mineralization efficiency.

[0004] The Chinese invention with patent publication number CN113561303B discloses a device and method for CO2 mineralization curing concrete block, which increases the reaction probability and efficiency of the block and the gas by strengthening the flue gas flow and disturbance, continuously introducing flue gas, etc., and enhances the reaction mass transfer process, but the pre-curing and mineralization curing processes are separated, which occupies a large area.

[0005] The Chinese invention with patent publication number CN116766370A discloses a carbonation reaction kettle special for aerated concrete, which can accurately control the temperature, humidity and CO2 concentration inside the reaction kettle to ensure the smooth progress of the mineralization reaction, but cannot supplement water to the reaction system; 90%~100% CO2 is used for pressure mineralization reaction, and when the concentration is lower than 30%, part of the gas is discharged and high-concentration gas is re-injected, which has a complex operation process. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a pre-curing and mineralization reaction system and control method for industrial solid waste mineralization of CO2.

[0007] The solution adopted by the present application to solve the technical problem is:

[0008] The application discloses an industrial solid waste CO2 mineralization pre-curing and mineralization reaction system, which comprises a reaction kettle formed with a closed cavity and used for pre-curing and mineralization of a shaped blank, a flow guide assembly arranged in the reaction kettle and used for guiding flue gas, and an atomization water supplement assembly installed on the reaction kettle and used for water supplement and cooling during the pre-curing and mineralization reaction of the shaped blank; an air inlet unit, an air outlet and a sewage outlet are arranged on the reaction kettle; the flue gas enters the reaction kettle to react with the shaped blank through the air inlet unit, and then is discharged through the air outlet; and condensed water formed during the reaction is discharged from the sewage outlet.

[0009] In some possible implementation manners, the air inlet unit is two groups and is symmetrically arranged along the axial direction of the reaction kettle, each group of the air inlet unit comprises a plurality of groups of flue gas inlets arranged along the axial direction of the reaction kettle in sequence; and the air outlet is also two groups and is symmetrically arranged along the axial direction of the reaction kettle.

[0010] In some possible implementation manners, the flow guide assembly comprises a plurality of groups of flow guide pieces arranged in the reaction kettle and arranged in a circumferential direction of the reaction kettle, and cavities for placing the shaped blank are formed between the plurality of groups of flow guide pieces.

[0011] In some possible implementation manners, each group of the flow guide pieces comprises a plurality of groups of flow guide plates arranged along the axial direction of the reaction kettle in sequence; and the flow guide plates are arranged in an inclined manner.

[0012] In some possible implementation manners, a flow adjusting assembly is arranged on each group of the flue gas inlets and the air outlets respectively; and a pressure monitoring assembly is arranged on each group of the flue gas inlets, the air outlets and the reaction kettle respectively.

[0013] In some possible implementation manners, a humidity monitoring assembly and a temperature monitoring assembly are further arranged on the reaction kettle.

[0014] In some possible implementation manners, a gas collecting pipe for discharging or conveying flue gas in the reaction kettle is further arranged in the reaction kettle and below the shaped blank; and a plurality of groups of through holes are arranged on the gas collecting pipe.

[0015] In some possible implementation manners, the axial direction of the gas collecting pipe is arranged along the axial direction of the reaction kettle, one side of the gas collecting pipe penetrates through the reaction kettle, is located outside the reaction kettle and is connected with the air outlet.

[0016] In some possible implementation manners, the atomization water supplement assembly comprises a water pipe installed in the reaction kettle and located above the shaped blank, an atomizer located above the shaped blank and communicated with the water pipe, and a process water system communicated with the water pipe and located outside the reaction kettle.

[0017] A control method of the industrial solid waste CO2 mineralization pre-curing and mineralization reaction system is also disclosed.

[0018] Step S1: open the kettle cover of the reaction kettle, send the formed blank into the reaction kettle, close the kettle cover, and seal treatment is carried out;

[0019] Step S2: through the atomizing water supplement assembly, water is added to the inside of the reaction kettle, so that the humidity in the reaction kettle is 70~90%RH during pre-curing, and the pre-curing time is 1~3d;

[0020] Step S3: close the atomizing water supplement assembly, and the flue gas with a CO2 concentration of 10~30% and a temperature of 60~80℃ is transported into the reaction kettle to carry out mineralization reaction on the formed blank; wherein the temperature in the reaction kettle is 40~80℃, the pressure is 0.02~1.5MPa, the reaction time is 2~10h, and the formed condensed water is discharged;

[0021] When the temperature in the reaction kettle is monitored to be greater than 80℃, water is supplemented into the reaction kettle through the atomizing water supplement assembly for cooling;

[0022] When the pressure in the reaction kettle is less than 0.02MPa, the pressure in the reaction kettle is increased by increasing the flue gas inlet flow or reducing the flue gas outlet flow;

[0023] When the pressure in the reaction kettle is greater than 1.5MPa, the pressure is released through the safety valve arranged on the reaction kettle.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] The present application provides a closed reaction place and a wet liquid phase environment for the reaction of CO2 gas and solid active components by setting the atomizing water supplement assembly for pre-curing and mineralization reaction, which can effectively ensure that the temperature in the reaction kettle meets the requirements;

[0026] The present application effectively enhances the disturbance of the flue gas entering the reaction kettle by setting the flow guide assembly, strengthens the mass transfer effect of the reaction process, and improves the mineralization efficiency;

[0027] The present application also sets multiple gas inlet units and a gas collecting pipe, which can supplement fresh flue gas at different positions of the formed blank bed layer in the middle of the mineralization reaction, improve the uniformity of the flue gas distribution in the reaction kettle, increase the contact reaction probability of the flue gas and the center area of the formed blank, and improve the efficiency and product quality of the mineralization reaction;

[0028] The present application monitors the reaction process in the reaction kettle in real time and adjusts by setting the temperature monitoring assembly, the flow adjusting assembly, the humidity monitoring assembly and the pressure monitoring assembly, ensures the controllable and continuous mineralization reaction, and improves the production efficiency;

[0029] Compared with the prior art, the present application combines the pre-curing area and the mineralization reaction area into one, saves land area, and has simple structure and strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0030] Fig. 1 It is a schematic view of the internal structure of the present application;

[0031] Fig. 2 It is a sectional view of the present application;

[0032] Wherein: 1, reaction kettle; 11, flue gas inlet; 12, gas outlet; 13, blowdown; 14, deflector; 15, water pipe; 16, gas collecting pipe; 2, flow regulating assembly; 3, pressure monitoring assembly; 4, humidity monitoring assembly; 5, temperature monitoring assembly; 10, kettle cover; 100, shaped blank. DETAILED DESCRIPTION

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in the present application do not represent any order, quantity or importance, but only distinguish different components. Similarly, "one" or "a" and the like do not represent a quantity limit, but represent the existence of at least one. In the implementation of the present application, the association relationship of the associated objects is described as "and / or", which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" is two or more. For example, multiple positioning columns refer to two or more positioning columns. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The present application will be described in detail below.

[0035] As Figs. 1-2 shown:

[0036] An industrial solid waste mineralization CO2 pre-curing and mineralization reaction system, comprising a reaction kettle 1 formed with a closed cavity and used for pre-curing and mineralization of a shaped blank 100, a flow guide assembly arranged in the reaction kettle 1 and guiding flue gas, and an atomizing water supply assembly mounted on the reaction kettle 1 and used for pre-curing and water supply cooling of the shaped blank 100; an air inlet unit, a gas outlet 12 and a blowdown 13 are arranged on the reaction kettle 1;

[0037] In use, the reaction kettle 1 is horizontally placed, and the axial direction is horizontal; the reaction kettle 1 is provided with a chamber, and one end of the reaction kettle 1 is provided with an opening connected with the chamber; the opening is provided with a kettle cover 10, and the kettle cover 10 is in sealing cooperation with the reaction kettle 1, so that the chamber becomes a sealed cavity;

[0038] The shaped green body 100 is placed in the sealed cavity, and pre-curing is realized by atomizing water supply assembly; after the pre-curing is completed, flue gas enters the reaction kettle 1 through the gas inlet unit to react with the shaped green body 100, and the reacted gas is discharged through the gas outlet 12; the condensed water formed in the reaction process is discharged from the blowdown port 13;

[0039] The present application effectively realizes pre-curing and mineralization reaction in the reaction kettle 1, and greatly reduces the floor area;

[0040] In the mineralization reaction process, the pressure in the reaction kettle 1 is effectively adjusted by adjusting the flue gas inlet amount of the gas inlet unit or the flue gas outlet amount of the gas outlet 12;

[0041] Further, the blowdown port 13 is arranged at the bottom of the reaction kettle 1 and is three, and the three blowdown ports 13 are arranged at the first end of the side of the reaction kettle 1 close to the kettle cover 10, the middle section of the reaction kettle 1 and the tail end of the reaction kettle 1;

[0042] Further, since there are acidic gases and chloride ions in the flue gas, the reaction kettle 1 is made of anti-corrosion material; the pressure resistance of the reaction kettle 1 is 0~1.5MPa, and the wall thickness is 6~12mm; when the external environment is low, the heat loss of the reaction kettle 1 is obvious, and a heat preservation layer can be additionally arranged on the outside of the reaction kettle 1 to realize heat preservation; specifically, the heat preservation layer comprises an aluminum skin sleeved on the outside of the reaction kettle 1 and heat preservation cotton arranged between the aluminum skin and the reaction kettle 1.

[0043] In some possible embodiments, the gas inlet unit is two groups and is symmetrically arranged along the axial direction of the reaction kettle 1, and each group of gas inlet units comprises a plurality of flue gas inlets 11 arranged in sequence along the axial direction of the reaction kettle 1; the gas outlet 12 is two groups and is symmetrically arranged along the axial direction of the reaction kettle 1;

[0044] By arranging multiple groups of gas inlet units, the flue gas can enter the reaction kettle 1 through different flue gas inlets 11 according to the proportioning requirements; at the same time, fresh flue gas CO2 can be supplemented in time at different positions of the shaped green body 100 bed layer in the middle section of the mineralization reaction, the uniformity of the gas distribution in the reaction kettle 1 is improved, the contact reaction probability of the gas and the mineralization raw materials in the central area is increased, and the efficiency of the mineralization reaction and the product quality are improved;

[0045] It should be noted that the number of flue gas inlets 11 in each group of gas inlet units can be arranged according to the size of the reaction kettle 1;

[0046] Further, the distance between two adjacent groups of air inlet units is not greater than 3m; the number of flue gas inlets 11 in each group of air inlet units is 3-6 groups; when the number of flue gas inlets 11 in each group of air inlet units is 4 groups, the flow rate of each flue gas inlet 11 is 10%-60%.

[0047] In some possible embodiments, in order to effectively make the flue gas entering the reaction kettle 1 contact with the shaped green body 100, increase the reaction probability, and avoid the flue gas directly discharged from the gas outlet 12 after entering the reaction kettle 1, the flow guide assembly comprises a plurality of flow guide pieces arranged in the reaction kettle 1 and circumferentially around the reaction kettle 1, and cavities for placing the shaped green body 100 are formed between the plurality of flow guide pieces; each group of flow guide pieces comprises a plurality of flow guide plates 14 arranged equidistantly along the axis of the reaction kettle 1; the flow guide plates 14 are arranged obliquely and are hingedly connected with the reaction kettle 1, thereby effectively achieving adjustment of the oblique angle of the flow guide plates 14.

[0048] Preferably, the flow guide pieces are four groups and are uniformly arranged circumferentially around the reaction kettle 1, and specifically, as shown in Fig. 2 the four groups of flow guide pieces are arranged up and down and left and right;

[0049] A track for supporting the shaped green body 100 is arranged in the cavity; the flow guide plate 14 at the bottom of the reaction kettle 1 is located below the track;

[0050] Specifically, the gap between the flow guide plate 14 and the shaped green body 100 is H, and H=20-80mm; after the flue gas enters the reaction kettle 1 through the flue gas inlet 11, the flue gas enters the gap under the action of the flow guide plate 14 and moves to the side of the gas outlet 12 along the gap, so that the flue gas can fully react with the shaped green body 100;

[0051] Further, the cross section of the reaction kettle 1 is circular ring-shaped, and the included angle formed by the flow guide plate 14 and the axis of the reaction kettle 1 is A, and A=15°-90°.

[0052] In some possible embodiments, in order to effectively achieve flow rate adjustment of the flue gas passing through the flue gas inlet 11 and the gas outlet 12, so that the flue gas can be sent into different flue gas inlets 11 according to the proportion, a flow rate adjustment assembly 2 is arranged on each group of flue gas inlets 11 and gas outlets 12; the flow rate adjustment assembly 2 comprises a flow meter and an adjustment valve;

[0053] In order to effectively monitor the pressure of the flue gas passing through the flue gas inlet 11 and the gas outlet 12, a pressure monitoring assembly 3 is arranged on each group of flue gas inlets 11, gas outlets 12 and reaction kettles 1, thereby effectively ensuring that the inside of the reaction kettle 1 is kept at 0.02-1.5MPa, so that the flue gas can pass through the shaped green body 100 bed layer to participate in the reaction;

[0054] In order to effectively realize the monitoring of the humidity and temperature in the reaction kettle 1, the humidity monitoring assembly 4 and the temperature monitoring assembly 5 are further arranged on the reaction kettle 1, so as to effectively ensure that the temperature in the reaction kettle 1 is 40-80℃, and the humidity is 70-90% RH during pre-curing.

[0055] Specifically, the temperature monitoring assembly 5 is multiple groups, and is uniformly arranged along the axial direction of the reaction kettle 1, so as to monitor the temperature at different positions in the reaction kettle 1 in real time, and the temperature monitoring is more accurate; the humidity monitoring assembly 4 is arranged at the center of the top of the reaction kettle 1, so as to monitor the humidity change in the reaction kettle 1 in real time.

[0056] In some possible embodiments, a gas collecting pipe 16 for discharging or conveying flue gas into the cavity is further arranged in the reaction kettle 1 and below the formed green body 100; a plurality of groups of through holes are arranged on the gas collecting pipe 16.

[0057] The gas collecting pipe 16 is installed in the reaction kettle 1 and below the formed green body 100, and can realize the discharge of flue gas in the reaction kettle 1 to the outside or the conveying of flue gas into the reaction kettle 1 during the mineralization reaction.

[0058] Further, the axial direction of the gas collecting pipe 16 is arranged along the axial direction of the reaction kettle 1, one side of the gas collecting pipe 16 penetrates through the reaction kettle 1, is located outside the reaction kettle 1, and is connected with the gas outlet 12.

[0059] The gas outlet 12 is connected with the gas collecting pipe 16, a booster fan is added on the pipeline between the gas outlet 12 and the gas collecting pipe 16, so as to effectively realize the recycling use of the exhaust gas discharged from the gas outlet 12, and improve the utilization rate of CO2.

[0060] Further, the axial line of the gas collecting pipe 16 is coplanar with the axial line of the reaction kettle 1, and the plane is vertically arranged to uniformly divide the reaction kettle 1 into two halves.

[0061] In some possible embodiments, in order to effectively realize the pre-curing of the formed green body 100 by the atomizing water supply assembly, the atomizing water supply assembly comprises a water pipe 15 installed in the reaction kettle 1 and above the formed green body 100, an atomizer located above the formed green body 100 and communicating with the water pipe 15, and a process water system communicating with the water pipe 15 and located outside the reaction kettle 1.

[0062] During pre-curing, the process water system supplies water to the water pipe 15 and delivers the water to the atomizer, which forms atomized water for pre-curing the formed green body 100 through atomization treatment; as the hydration reaction and mineralization reaction continuously release heat, the temperature inside the reactor 1 rises, and when the temperature monitoring assembly 5 detects that the temperature inside the reactor 1 is too high, the atomization water supplement assembly supplies water to the reactor 1 to achieve cooling and at the same time supplement water to the reaction system to provide a liquid-phase reaction environment;

[0063] Further, the water pipe 15 is in two groups and symmetrically arranged along the axial direction of the reactor 1, and the atomizers on each group of water pipes 15 are in multiple groups and arranged at equal intervals to ensure that the formed green body 100 is in the atomization range, thereby effectively achieving pre-curing.

[0064] In order to ensure the atomization effect, the water pipe 15 is additionally provided with a filter membrane, and the atomizer is selected to be a solid atomization nozzle to ensure the atomization effect.

[0065] A control method of the pre-curing and mineralization reaction system for industrial solid waste mineralization CO2 according to the above, specifically comprising the following steps:

[0066] Step S1: open the cover 10 of the reactor 1, put the formed green body 100 into the reactor 1, adjust the gap between the flow guide plate 14 and the formed green body 100 and the inclination angle of the flow guide plate 14, close the cover 10, and seal the cover 10 and the reactor 1;

[0067] Step S2: pre-curing the formed green body 100; during pre-curing, the atomization water supplement assembly adds water to the inside of the reactor 1, so that the humidity in the reactor 1 during pre-curing is 70-90% RH, and the pre-curing time is 1-3 days; as the hydration reaction releases heat during pre-curing, the formed green body 100 loses water, and the atomization water supplement assembly adds water to the inside of the reactor 1 to prevent the formed green body 100 from appearing the phenomenon of returning to alkali;

[0068] Step S3: mineralization reaction of the formed green body 100; close the atomization water supplement assembly, and deliver flue gas with a CO2 concentration of 10-30% and a temperature of 60-80℃ into the reactor 1 through the flue gas inlet 11 to mineralize the formed green body 100; wherein the temperature in the reactor 1 is controlled to be 40-80℃, the pressure is 0.02-1.5 MPa, and the reaction time is 2-10 h; a large amount of heat is generated during the reaction process, the water of the formed green body 100 is dispersed and condensed in the inside of the reactor 1, and the condensed water is discharged through the blowdown outlet 13;

[0069] When the temperature monitoring assembly 5 detects that the temperature in the reactor 1 is >80℃, the atomization water supplement assembly supplies water to the reactor 1 to achieve cooling;

[0070] When the pressure monitoring assembly 3 monitors that the pressure in the reaction kettle 1 is less than 0.02 MPa, the pressure in the reaction kettle 1 is increased by increasing the flow of flue gas at the flue gas inlet 11 or reducing the flow of flue gas at the gas outlet 12.

[0071] When the pressure monitoring assembly 3 monitors that the pressure in the reaction kettle 1 is greater than 1.5 MPa, the pressure is released by the safety valve arranged on the reaction kettle 1.

[0072] The present application is not limited to the foregoing specific embodiments. The present application extends to any novel one, or any novel combination, of the features disclosed in this specification, and to any novel method or process disclosed, or any novel combination of steps of the disclosed methods or processes.

Claims

1. A pre-curing and mineralization reaction system for industrial solid waste mineralized CO2, characterized in that: The invention comprises a reactor with a closed cavity and used for pre-curing and mineralizing a molding blank, a flow guide assembly arranged in the reactor and used for diverting flue gas, and an atomizing water supply assembly installed on the reactor and used for water supply and cooling during the pre-curing and mineralization reaction of the molding blank; the reactor is provided with an air inlet unit, an air outlet and a sewage outlet; the flue gas enters the reactor through the air inlet unit to react with the molding blank and is then discharged through the air outlet; condensed water formed during the reaction is discharged from the sewage outlet; the air inlet unit and the air outlet are arranged on the same side and are located above the reactor, and the sewage outlet is arranged at the bottom of the reactor; an air collecting pipe for discharging flue gas in the cavity or transporting flue gas into the cavity is provided in the reactor and below the molding blank; The atomizing water replenishing assembly includes a water pipe installed in the reactor and located above the molding blank, an atomizer located above the molding blank and connected to the water pipe, and a process water system connected to the water pipe and located outside the reactor; The molding blank is placed in a sealed cavity and pre-cured by atomizing and replenishing water through the atomizing and replenishing water component; after the pre-curing is completed, the flue gas enters the reactor through the air inlet unit to react with the molding blank mineralization, and the reacted gas is discharged through the air outlet.

2. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 1 is characterized in that: The air inlet units are in two groups and are symmetrically arranged along the axial direction of the reactor. Each group of air inlet units includes multiple groups of flue gas inlets arranged in sequence along the axial direction of the reactor; the air outlets are in two groups and are symmetrically arranged along the axial direction of the reactor.

3. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 1 is characterized in that: The flow guide assembly includes multiple groups of flow guide pieces arranged in the reactor and arranged circumferentially around the reactor, and cavities for placing molding blanks are formed between the multiple groups of flow guide pieces.

4. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 3 is characterized in that: Each group of the guide members includes a plurality of guide plates arranged in sequence along the axial direction of the reactor; the guide plates are arranged in an inclined manner.

5. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 2 is characterized in that: A flow regulating component is provided on each group of the flue gas inlet and outlet respectively; a pressure monitoring component is provided on each group of the flue gas inlet, outlet and reactor respectively.

6. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 1, characterized in that: The reactor is also provided with a humidity monitoring component and a temperature monitoring component.

7. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 1, characterized in that: A plurality of through holes are arranged on the gas collecting pipe.

8. The pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to claim 7, characterized in that: The axial direction of the gas collecting pipe is arranged along the axial direction of the reactor. One side of the gas collecting pipe passes through the reactor and is located outside the reactor and is connected to the gas outlet.

9. A control method for a pre-curing and mineralization reaction system for industrial solid waste mineralized CO2 according to any one of claims 1 to 8, characterized in that: The specific steps include: Step S1: Open the lid of the reactor, place the preform into the reactor, close the lid, and seal it; Step S2: adding water to the reactor through the atomizing water supply component so that the humidity in the reactor is 70-90% RH during pre-curing, and the pre-curing time is 1-3 days; Step S3: closing the atomizing water supply component and delivering flue gas with a CO2 concentration of 10-30% and a temperature of 60-80°C into the reactor to perform mineralization treatment on the molding blank; wherein the temperature in the reactor is 40-80°C, the pressure is 0.02-1.5MPa, the reaction time is 2-10h, and the formed condensed water is discharged; When the temperature inside the reactor is monitored to be greater than 80°C, water is added to the reactor through the atomizing water supply component to cool it down; When the pressure inside the reactor is less than 0.02MPa, the reactor is pressurized by increasing the flue gas inlet flow rate or reducing the flue gas outlet flow rate; When the pressure inside the reactor is greater than 1.5 MPa, the pressure is released through the safety valve installed on the reactor.

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