CN115780484A - Continuous preparation system for carbon fixation cementing material - Google Patents
Continuous preparation system for carbon fixation cementing material Download PDFInfo
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- CN115780484A CN115780484A CN202211433741.XA CN202211433741A CN115780484A CN 115780484 A CN115780484 A CN 115780484A CN 202211433741 A CN202211433741 A CN 202211433741A CN 115780484 A CN115780484 A CN 115780484A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/18—Carbon capture and storage [CCS]
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Abstract
The invention discloses a continuous preparation system of a carbon-fixing cementing material, which comprises a microbial fermentation device, a material mixing device, a material stewing device and a carbon-fixing reaction device which are sequentially communicated, wherein the microbial fermentation device and the material mixing device are respectively communicated with a water source; the system also comprises a microbial powder bin, an industrial waste residue bin and an industrial flue gas source, wherein the fermentation device is communicated with the microbial powder bin, and the mixing device is communicated with the waste residue bin; the carbon sequestration reaction device is communicated with an industrial flue gas source in a circulating manner; the preparation system can meet the requirement of direct waste residueFast fixing industrial discharged CO 2 The method realizes green, efficient and stable carbon capture and utilization; the preparation system has continuous and stable production capacity, the carbon fixation reaction device obviously improves the carbon fixation rate compared with a common carbonization box, and the carbon fixation cementing material prepared by the system has high stability and activity.
Description
Technical Field
The invention relates to a material preparation technology for carbon capture utilization and waste residue recycling, in particular to a continuous preparation system for a carbon-fixing cementing material.
Background
At present, slag powder/high-calcium fly ash/steel slag powder/calcium carbide slag powder/calcined coal gangue powder/lithium slag powder/silicate, aluminosilicate mineral rock powder or waste residue powder and the like are used as industrial and mining waste residues which are large in quantity and cannot be efficiently treated and utilized; and the emission in the industrial emission flue gas causes serious environmental pollution, and the CO in the industrial emission flue gas is treated, treated and utilized 2 Has become a problem to be solved.
There are currently a number of studies on CO 2 The trapping and utilizing method includes utilizing industrial slag in carbon fixing and producing cementing material for cement and concrete. The method is beneficial to carbon reduction, and can also absorb a large amount of industrial waste residues to recycle the industrial waste residues, however, in general, the scheme in the prior art only exists in laboratory experiments, a real industrial preparation system is not made, and the laboratory scheme is applied to actual production and faces a lot of difficulties, wherein the biggest trouble is the reaction rate problem, and the reaction time, the reaction conditions and the like in the prior art cause that the preparation system for preparing the gelled material by using the industrial waste gas and the industrial waste residues cannot continuously produce, and corresponding equipment is not provided to improve the reaction rate; so that no industrial use of a continuously produced production system and corresponding apparatus is available in the prior art.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a continuous preparation system for continuously produced carbon-fixing cementing materials.
The technical scheme is as follows: the invention relates to a continuous preparation system of a carbon-fixing cementing material, which comprises a microbial fermentation device, a material mixing device, a material stewing device and a carbon-fixing reaction device which are sequentially communicated, wherein the microbial fermentation device and the material mixing device are respectively communicated with a water source; the system also comprises a microbial powder bin, an industrial waste residue bin and an industrial flue gas source, wherein the fermentation device is communicated with the microbial powder bin, and the mixing device is communicated with the waste residue bin; and the carbon fixation reaction device is circularly communicated with the industrial flue gas source.
Furthermore, a plurality of fermentation devices are respectively communicated with a water source and a fungus powder bin; a plurality of stewing material areas are arranged in the stewing device, and the quantity of the stewing material areas is not less than that of the fermentation devices; actually, two fermentation devices are selected to set time difference, and after the sequential fermentation is finished, waste residues are mixed through a material mixing device and enter a stewing area of a stewing device in sequence to form a continuous production line.
Furthermore, a powder metering device and a control valve are arranged on the fungus powder bin discharging pipeline, the waste residue bin discharging pipeline and the fermenting device discharging pipeline, a first liquid flow meter is arranged on the water source and fermenting device connecting pipeline, and a second liquid flow meter is arranged on the water source and mixing device connecting pipeline.
Furthermore, a temperature control system and a stirrer are arranged in the fermentation device, the temperature of fermentation is guaranteed when the temperature control system is used for fermentation, and the speed of fermentation is increased when the stirrer is used for fermentation.
Further, the compounding device is the mixer, improves the efficiency of compounding.
Furthermore, the carbon sequestration reaction device comprises a support frame and a horizontally arranged cylindrical shell, wherein an air inlet pipe and an air outlet pipe are respectively arranged at two ends of the shell, a driving shaft is arranged below the shell and is rotationally connected to the support frame, the driving shaft is connected with a motor and is provided with a gear, and a gear ring meshed with the gear is arranged on the surface of the shell; both ends of the carbon sequestration reaction device are provided with a sealable feed inlet which is communicated with the stewing device through a pipeline.
Further, sleeves are arranged at two ends of the shell and are rotatably connected with the feed inlet; the air inlet pipe and the air outlet pipe are respectively and fixedly installed in the two sleeves, and the air inlet pipe and the air outlet pipe are fixedly connected with a pipeline of an industrial flue gas source.
Furthermore, a plurality of dry mixing material plates are uniformly arranged in the shell, and the shape of each mixing material plate is set to be long in front and short in back along the air inlet direction.
Furthermore, a detection system is also arranged on the shell and comprises a solid metering device arranged between the feed inlet and the stewing device, a first gas flowmeter, a CO gas flowmeter and a gas inlet pipe, wherein the first gas flowmeter, the CO gas flowmeter and the CO gas flowmeter are sequentially arranged on the gas inlet pipe 2 The concentration monitor and a second gas flowmeter are arranged on the gas outlet pipe; and anA temperature and humidity measuring instrument arranged on the shell; the detection system controls the proportion of the carbon fixation reaction materials and the temperature and humidity of the internal reaction, so that the carbon fixation environment is in the best state, and the high carbon fixation rate is ensured.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the continuous preparation system can meet the requirement of directly and quickly fixing industrial discharged CO by waste residues 2 The green, efficient and stable carbon capture and utilization are realized; the preparation system has continuous and stable production capacity, the carbon fixation reaction device obviously improves the carbon fixation rate compared with a common carbonization box, and the carbon fixation cementing material prepared by the system has high stability and activity.
Drawings
FIG. 1 is a schematic view of a continuous production system of the present invention;
FIG. 2 is a schematic view of a carbon sequestration reaction apparatus according to the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
As shown in fig. 1, a microbial fermentation device 3, a mixing device 5, a stewing device 6 and a carbon fixation reaction device 7 are communicated through pipelines in sequence, and valves are arranged at discharge ports of the fermentation device 3 and the mixing device 5 to control the discharge of materials; the fermentation devices 3 are three or more according to the stewing material reaction time, each fermentation device 3 is provided with a pipeline communicated with a water source 1, a water outlet pipeline of the water source 1 is provided with a first liquid flow meter, and the flow meter controls the opening and closing of a water valve; each fermentation device 3 is communicated with the microbial powder bin 2 through a pipeline, a valve is arranged on a discharging pipeline of the microbial powder bin 2, a powder metering device, such as a solid powder flowmeter, is arranged on a powder discharging pipeline, and the flowmeter controls the opening and closing of a powder outlet valve; the three fermentation devices 3 are respectively used for carrying out microbial fermentation, and a stirrer and a temperature control device are arranged on the fermentation devices 3; after fermentation, the fermented materials sequentially enter a mixing device 5, the mixing device 5 is communicated with a water source 1 through a pipeline, meanwhile, the mixing device 5 is communicated with an industrial waste residue bin 4 through a pipeline, a second liquid flowmeter and a valve are arranged on a communication pipeline between the water source 1 and the mixing device 5, and a powder metering device and a valve are arranged on a communication pipeline between the waste residue bin 4 and the mixing device 5; the mixing device 5 is a stirrer; after the material mixing device 5 finishes material mixing, the obtained slag materials are sent into a stewing material area of the stewing device 6, the stewing material area is divided according to time as the stewing material needs 12-60 hours, and meanwhile, the temperature of the whole stewing device 6 is 10-40 ℃ and the relative humidity is 40-100%; when the slag material put into the material stewing device 6 at first finishes stewing, the stewing material is sent into the carbon fixation reaction device 7, the slag material is sent into the carbon fixation reaction device 7 according to the filler coefficient of 0.05-0.15, the feed inlet of the carbon fixation reaction device 7 is sealed, the rotating speed of a driving shaft is set to be 0.5 r/min-20 r/min, and the carbon fixation reaction temperature is set to be 10-60 ℃; and opening the air inlet, the air outlet and the detection system, and carrying out carbon fixation reaction for 20 min-48 h.
As shown in fig. 2, the carbon sequestration reaction device 7 includes a support frame 701 and a horizontally arranged cylindrical shell 702, two ends of the shell 702 are hinged with a feed port 703 that can be opened and closed, a seal ring is arranged on the feed port 703, the airtightness of the carbon sequestration reaction device 7 is ensured when the feed port 703 is closed, and a sleeve 704 is rotatably mounted on the feed port 703 through an airtight adapter; a driving shaft 705 is rotatably arranged on the supporting frame 701, one end of the driving shaft 705 is connected with a motor, two gears 706 are arranged on the driving shaft 705, and two rings of gear rings meshed with the gears 706 are arranged on the surface of the shell 702; the left sleeve 704 is fixedly connected with an air inlet pipe of an industrial flue gas source 8, the right sleeve 704 is fixedly connected with an air outlet pipe, and the air outlet pipe is connected with the gas source 8 for recycling treatment; a plurality of material mixing plates 707 are arranged on the inner wall of the shell 702, the material mixing plates 707 extend towards the central axis direction of the shell 702, and the length of the material mixing plates 707 is set to be first longer and then shorter along the air inlet direction; a sleeve 704 connected with one end of the air inlet pipe is sequentially provided with a first gas flowmeter 708 and CO 2 A concentration monitor 711, a solid meter is arranged on a connecting pipeline connected between the feed inlet 703 of the sleeve 704 and the stewing device 6, and a second gas flowmeter 709 is arranged on an air outlet pipe at the other end of the shell 702; a temperature and humidity meter 710 for monitoring the temperature and humidity inside the housing 702 is also provided on the housing 702.
The use method of the continuous preparation system comprises the following steps:
(1) Opening the bacterial powder bin 2, controlling the quality of the conveyed bacterial powder through a powder metering device, conveying a certain amount of bacterial powder to the microbial fermentation device 3 through a pipeline, setting numerical values of a water source 1 and a first liquid flow meter on the pipeline of the fermentation device 3, conveying a fixed amount of water to the fermentation device, and performing mixed culture for more than 24 hours to obtain a microbial additive;
(2) Setting a second liquid flow count value on a pipeline for communicating the water source 1 with the mixing device 5, and setting values of powder metering devices on a discharge port of the waste residue bin and a discharge port of the fermentation device; according to the microbial additive: water: the waste slag powder = 0.02-0.08;
(3) The stewing device 6 is arranged according to time division, the slag materials are sequentially sent to different areas of the stewing device 6 according to time sequence, the stewing device 6 is sealed, and the temperature is set to be 10-40 ℃ and the relative humidity is set to be 40-100%; stewing for 12-60 h;
(4) Opening a feed inlet 703 of a carbon fixation reaction device 7, feeding the slag subjected to stewing into the carbon fixation reaction device 7 according to a filler coefficient of 0.05-0.15, sealing the feed inlet 703, and setting a rotating speed of a driving shaft 705 to be 0.5-20 r/min and a carbon fixation reaction temperature to be 10-60 ℃; and opening the air inlet, the air outlet and the detection system, and performing carbon fixation reaction for 20 min-48 h to obtain a carbon fixation cementing material;
(5) Opening the feed inlet 703, rotating the carbon fixation reaction device 7, and pouring out the carbon fixation cementing material; and injecting new slag again to carry out carbon fixation reaction.
Claims (9)
1. A continuous preparation system of a carbon-fixing cementing material is characterized by comprising a microbial fermentation device (3), a material mixing device (5), a material stewing device (6) and a carbon-fixing reaction device (7) which are sequentially communicated, wherein the microbial fermentation device (3) and the material mixing device (5) are respectively communicated with a water source (1); the system also comprises a microbial powder bin (2), an industrial waste residue bin (4) and an industrial flue gas source (8), wherein the fermentation device (3) is communicated with the microbial powder bin (2), and the mixing device (5) is communicated with the waste residue bin (4); the carbon fixation reaction device (7) is circularly communicated with an industrial flue gas source (8).
2. The preparation system according to claim 1, wherein the fermentation device (3) is provided in plurality and is respectively communicated with the water source (1) and the fungus powder bin (2); a plurality of stewing areas are arranged in the stewing device (6), and the quantity of the stewing areas is not less than that of the fermentation devices (3).
3. The preparation system according to claim 1, wherein a powder metering device and a control valve are arranged on the discharging pipeline of the powder bin (2), the discharging pipeline of the waste residue bin (4) and the discharging pipeline of the fermentation device (3), a first liquid flow meter is arranged on the connecting pipeline of the water source (1) and the fermentation device (3), and a second liquid flow meter is arranged on the connecting pipeline of the water source (1) and the mixing device (5).
4. The system for preparing according to claim 1, characterized in that the fermentation device (3) is built-in with a temperature control system and a stirrer.
5. A production system according to claim 1, wherein the mixing device (5) is a blender.
6. The preparation system according to claim 1, wherein the carbon sequestration reaction device (7) comprises a support frame (701) and a horizontally arranged cylindrical shell (702), both ends of the shell (702) are respectively provided with an air inlet pipe and an air outlet pipe, a drive shaft (705) is arranged below the shell (702), the drive shaft (705) is rotatably connected to the support frame (701), the drive shaft (705) is connected with a motor, a gear (706) is arranged on the drive shaft (705), and a gear ring meshed with the gear (706) is arranged on the surface of the shell (702); both ends of the carbon sequestration reaction device (7) are provided with a feed inlet (703) which can be sealed, and the feed inlet (703) is communicated with the stewing device (6) through a pipeline.
7. A preparation system according to claim 6, characterized in that the casing (702) is provided with sleeves (704) at both ends and the sleeves (704) are rotatably connected with the feed inlet (703); the air inlet pipe and the air outlet pipe are respectively and fixedly installed in the two sleeves (704), and the air inlet pipe and the air outlet pipe are fixedly connected with a pipeline of an industrial flue gas source (8).
8. A preparation system according to claim 6, characterized in that a plurality of dry mixing material plates (707) are uniformly arranged inside the housing (702), and the shape of the mixing material plates (707) is arranged to be long in front and short in back along the air intake direction.
9. A preparation system according to claim 6, characterized in that the housing (702) is further provided with a detection system, the detection system comprises a solid metering device arranged between the feeding hole and the stewing device 6, a first gas flow meter (708) arranged on the gas inlet pipe in turn, and CO 2 A concentration monitor (711) and a second gas flow meter (709) arranged on the gas outlet pipe; and a temperature and humidity measuring instrument (710) mounted on the housing (702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211433741.XA CN115780484A (en) | 2022-11-16 | 2022-11-16 | Continuous preparation system for carbon fixation cementing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211433741.XA CN115780484A (en) | 2022-11-16 | 2022-11-16 | Continuous preparation system for carbon fixation cementing material |
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| Publication Number | Publication Date |
|---|---|
| CN115780484A true CN115780484A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211433741.XA Pending CN115780484A (en) | 2022-11-16 | 2022-11-16 | Continuous preparation system for carbon fixation cementing material |
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| Country | Link |
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| CN (1) | CN115780484A (en) |
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- 2022-11-16 CN CN202211433741.XA patent/CN115780484A/en active Pending
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