Glass raw material pre-homogenization and pyrolysis integrated pretreatment method

Abstract

The invention discloses a glass raw material pre-homogenization and pyrolysis integrated pretreatment method, and relates to the technical field of float glass manufacturing, and the method comprises the following steps: 1, feeding a glass batch into a fluidization homogenization device, introducing fluidization gas to make the raw material in a fluidization state, applying mechanical vibration at the same time, and carrying out micron-scale mixing on the raw material; 2, conveying the homogenized raw materials to a microwave pyrolysis device, and carrying out gradient heating by adopting multi-band microwave radiation to sequentially complete pyrolysis processes of organic matter removal and carbonate decomposition; through LIBS online detection, component fluctuation is greatly reduced, and the abnormal response speed is improved compared with that of a traditional mode. Fluidization engineering and microwave chemistry are fused, and the industrial problem of homogenization-pyrolysis collaborative optimization is solved. And in the aspect of pyrolysis control, a microwave gradient heating technology is adopted, so that the decomposition temperature of carbonate is reduced from 1250 DEG C to 650-880 DEG C, and the energy consumption is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of float glass manufacturing, and specifically to an integrated pretreatment method for glass raw material pre-homogenization and pyrolysis. Background Art

[0002] In the traditional float glass manufacturing process, there have been many technical bottlenecks in the raw material pretreatment link for a long time, seriously restricting the improvement of production efficiency and product quality. The currently widely used "yard homogenization and melting furnace pyrolysis" mode in the industry first faces the core problem of low homogenization efficiency: the rectangular yard requires stacking and reclaiming operations for up to 72 hours, which not only occupies a large amount of space, but also results in a segregation degree of up to 18% for -75μm fine particles due to gravity sedimentation. Eventually, the SiO2 content in the batch fluctuates by 0.38%, directly affecting the forming stability and optical uniformity of the glass.

[0003] In the pyrolysis treatment link, the traditional process completely relies on the high temperature generated by burning fuels such as natural gas in the melting furnace for the decomposition of carbonates and sulfates. This pyrolysis treatment method has two defects: First, there is serious energy waste, and an additional 8 - 10% of fuel is consumed per ton of glass liquid. Second, a large amount of CO 2， is produced, leading to environmental pollution and a sharp increase in the load of the flue gas treatment system.

[0004] Specifically, the above technical defects together have caused three dilemmas faced by the float glass industry: high energy consumption, increasing environmental protection pressure, and difficulty in breaking through the high-quality product rate. The traditional pretreatment process has become the key bottleneck restricting the green upgrade of the industry. Therefore, we propose an integrated pretreatment method for glass raw material pre-homogenization and pyrolysis to solve the problems raised above.

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of the present invention. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide an integrated pretreatment method for glass raw material pre-homogenization and pyrolysis to solve one of the problems such as high energy consumption and carbon emissions, increasing environmental protection pressure, and difficulty in breaking through in the current market as mentioned in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An integrated pretreatment method for glass raw material pre-homogenization and pyrolysis, comprising the following steps:

[0009] Step 1: Feed the glass batch into a fluidized homogenization device, introduce a fluidizing gas to make the raw materials in a fluidized state, and at the same time apply mechanical vibration to perform micron-level mixing on the raw materials;

[0010] Step 2: Transport the homogenized raw materials to the microwave pyrolysis device, and use multi-band microwave radiation for gradient heating to sequentially complete the pyrolysis process of organic matter removal and carbonate decomposition;

[0011] Step 3: Introduce the gas generated by pyrolysis into the regenerator of the float glass melting furnace through a closed pipeline for secondary combustion utilization;

[0012] Step 4: Monitor the raw material composition and pyrolysis degree in real time, and dynamically adjust the fluidization parameters and microwave power.

[0013] As a further optimized solution of the present invention, the fluidization gas velocity of the fluidized homogenization device is 0.3 - 0.8 m / s, the mechanical vibration frequency is 25 - 50 Hz, the amplitude is 2 - 5 mm, and inclined baffles are arranged in the fluidized bed, and the included angle with the horizontal plane is 30 - 60°.

[0014] As a further optimized solution of the present invention, the microwave pyrolysis is dual-frequency composite radiation of 915 MHz and 2.45 GHz. Among them, 2.45 GHz microwave is used in the low-temperature zone of 200 - 400 °C, and 915 MHz microwave is used in the medium-high temperature zone of 500 - 900 °C, and the residence time in each temperature zone is 10 - 30 minutes.

[0015] As a further optimized solution of the present invention, an alkaline adsorbent with a particle size of 10 μm is added to the raw materials during the microwave pyrolysis stage. The adsorbent includes Ca(OH)2 and MgO, and the addition amount is 0.5 - 3 wt% of the total weight of the raw materials.

[0016] As a further optimized solution of the present invention, in Step 4, laser-induced breakdown spectroscopy is used to on-line detect the raw material composition, and the detection data is fed back to the control system.

[0017] The integrated pretreatment system for glass raw material pre-homogenization and pyrolysis includes:

[0018] A fluidized homogenization tower, a microwave pyrolysis reactor, a gas recovery pipeline, an on-line detection and control system.

[0019] As a further optimized solution of the present invention, the microwave pyrolysis reactor is divided into three independent temperature zones, and each temperature zone is equipped with a microwave emission antenna array, an infrared temperature measurement module, and a gas composition sensor.

[0020] As a further optimized solution of the present invention, the bottom of the fluidized homogenization tower is provided with a conical gas distributor, the hole opening rate is 40 - 60%, and the pore size distribution is that the pore size in the central area is 1 - 2 mm, and the pore size in the edge area is 2 - 3 mm.

[0021] As a further optimized solution of the present invention, the gas distributor forms an angle of 30-45° with the vibration direction of the high-frequency vibrating screen, and the mesh size of the vibrating screen is 3-5 times the average particle size of the raw materials.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] Compared with the traditional process, the present invention firstly improves the homogenization quality, optimizes the SiO2 uniformity from 0.38% to 0.09%, and at the same time significantly shortens the homogenization time from 72 hours to 4 hours, greatly improving the efficiency. In terms of pyrolysis control, the microwave gradient heating technology is adopted to reduce the carbonate decomposition temperature from 1250°C to the range of 650-880°C, not only reducing the energy consumption, but also significantly suppressing the SO2 emission concentration from 1260 ppm to 175 ppm.

[0024] The present invention can stably process inferior raw materials containing less than 1.5% sulfur and less than 8% water. Through LIBS on-line detection, the composition fluctuation is greatly reduced, and the abnormal response speed is improved compared with the traditional method. By integrating fluidization engineering and microwave chemistry, the industry problem of synergistic optimization of homogenization-pyrolysis is solved.

[0025] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flowchart of the integrated pretreatment method for pre-homogenization and pyrolysis of glass raw materials of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] The present invention provides an integrated pretreatment method for pre-homogenization and pyrolysis of glass raw materials, including the following steps:

[0029] Step 1: Feed the glass batch into the fluidized homogenization device, introduce the fluidizing gas to make the raw materials in a fluidized state, and at the same time apply mechanical vibration to perform micron-level mixing on the raw materials;

[0030] Step 2: Transport the homogenized raw materials to the microwave pyrolysis device, and perform gradient heating using multi-band microwave radiation to sequentially complete the pyrolysis processes of organic matter removal and carbonate decomposition;

[0031] Step 3: Introduce the gas generated by pyrolysis into the regenerator of the float glass melting furnace through a closed pipeline for secondary combustion utilization;

[0032] Step 4: Monitor the raw material composition and pyrolysis degree in real time, and dynamically adjust the fluidization parameters and microwave power.

[0033] Specifically, the fluidization gas velocity of the fluidized homogenization device is 0.3 - 0.8 m / s, the mechanical vibration frequency is 25 - 50 Hz, the amplitude is 2 - 5 mm, and inclined baffles are arranged in the fluidized bed, and the included angle with the horizontal plane is 30 - 60°.

[0034] Specifically, the microwave pyrolysis is dual-frequency composite radiation of 915 MHz and 2.45 GHz. Among them, 2.45 GHz microwave is used in the low-temperature zone of 200 - 400 °C, and 915 MHz microwave is used in the medium-high temperature zone of 500 - 900 °C. The residence time in each temperature zone is 10 - 30 minutes.

[0035] Specifically, alkaline adsorbents with a particle size of 10 μm are added to the raw materials during the microwave pyrolysis stage. The adsorbents include Ca(OH)2 and MgO, and the addition amount is 0.5 - 3 wt% of the total weight of the raw materials.

[0036] Specifically, in Step 4, laser-induced breakdown spectroscopy is used to on-line detect the raw material composition, and the detection data is fed back to the control system.

[0037] An integrated pretreatment system for glass raw material pre-homogenization and pyrolysis includes:

[0038] A fluidized homogenization tower, a microwave pyrolysis reactor, a gas recovery pipeline, and an on-line detection and control system.

[0039] Specifically, the microwave pyrolysis reactor is divided into three independent temperature zones, and each temperature zone is equipped with a microwave emission antenna array, an infrared temperature measurement module, and a gas composition sensor.

[0040] Specifically, the bottom of the fluidized homogenization tower is provided with a conical gas distributor, the hole opening rate of which is 40 - 60%, and the pore size distribution is 1 - 2 mm in the central area and 2 - 3 mm in the edge area.

[0041] Specifically, the included angle between the gas distributor and the vibration direction of the high-frequency vibrating screen is 30 - 45°, and the mesh size of the vibrating screen is 3 - 5 times the average particle size of the raw materials.

[0042] Example 1

[0043] Raw material ratio: quartz sand with a particle size of 75 - 150 μm, 72 wt%, limestone with a particle size of 45 - 90 μm, 12 wt%, soda ash with a particle size of 100 - 200 μm, 14 wt%, and mirabilite with a particle size of 50 - 120 μm, 2 wt%;

[0044] Pretreatment method:

[0045] Put the mixed raw materials into a fluidized homogenization tower, and introduce nitrogen through the bottom conical gas distributor. The gas flow rate is 0.55 m / s, and the bed expansion ratio reaches 1.7;

[0046] Simultaneously start the high-frequency vibrating screen, set the frequency to 35 Hz, the amplitude to 3 mm, and the vibration direction forms a 45° angle with the air flow; after 4.5 hours of homogenization time, sample and detect that the standard deviation of SiO2 content decreases.

[0047] The homogenized raw materials enter the microwave pyrolysis reactor through an airtight conveyor belt, and the length of each section of the three-section cavity is 2 m:

[0048] 250 ± 10 °C is the first temperature zone: Use 2.45 GHz microwave with a power of 25 kW to remove adsorbed water and organic matter, and the residence time is 12 minutes;

[0049] 650 ± 15 °C is the second temperature zone: Switch to 915 MHz microwave with a power of 40 kW to decompose dolomite, and the residence time is 18 minutes;

[0050] 880 ± 20 °C is the third temperature zone: Use 915 MHz microwave with a power of 50 kW to decompose limestone, and the residence time is 22 minutes;

[0051] The pyrolysis gas is introduced into the regenerator of the melting furnace through a quartz pipeline, and the inner wall of the pipeline is sprayed with an Al2O3 anti-corrosion coating.

[0052] Use a LIBS detector to monitor the CaO content in the raw materials in real time, with a sampling interval of 30 seconds. When the detected value deviates from the set value by ±0.2%, automatically adjust the microwave power of the third temperature zone by ±8 kW; the vibration screen frequency is dynamically adjusted according to the particle size distribution of the raw materials. The detection results are shown in the following table.

[0053]

[0054]

[0055] Example 2

[0056] Compared with Example 1, the raw material ratio increases high-sulfur limestone to replace conventional limestone, adds 0.8 wt% Ca(OH)2 fine powder as an adsorbent, and 0.4 wt% NaHCO3 nanosheets;

[0057] The difference between the pretreatment method and Example 1 is as follows: in the primary pyrolysis zone, 2 vol% O2 is mixed in, and in the secondary pyrolysis zone, 5 vol% O2 is mixed in; the vibration sieve frequency is increased to 40 Hz to enhance the dispersion of the adsorbent.

[0058] A spray gun is added in the second temperature zone. The swirling atomization pressure in the main spray gun is 0.4 MPa, and the droplet D50 = 20 μm. The ultrasonic atomization frequency in the auxiliary spray gun is 120 kHz, and the droplet D50 = 8 μm. The Ca(OH)2 suspension is atomized and sprayed in; the SO2 concentration in the pyrolysis gas is controlled to be 200 ppm, and when it exceeds the threshold, the adsorbent supply amount is automatically increased by 10%. The pyrolysis gas first passes through a combined cyclone and electrostatic precipitation system to remove CaSO4 particles. Among them, the surface of the CaSO4 particles is coated with a SiO2 nano-layer, and then it is introduced into the regenerator; the separated CaSO4 particles are recycled into the batch. The test results are shown in the following table.

[0059] Parameter Without adsorbent Adding adsorbent <![CDATA[SO2 emission concentration (ppm)]]> 175 100 Glass defect (bubbles / ton) 3 1.2 Saving of sodium sulfate consumption 22％ 34％

[0060] Example 3

[0061] The integrated pretreatment system for glass raw material pre-homogenization and pyrolysis includes:

[0062] A fluidized bed homogenization tower, which includes a SiC wear-resistant lining with a thickness of 15 mm;

[0063] A gas distributor with a cone angle of 60°, a central area pore diameter of 1.5 mm, and an edge area pore diameter of 2.5 mm;

[0064] A vibrating screen with a 316L stainless steel screen and a mesh size of 300 μm;

[0065] A microwave pyrolysis reactor, in which the microwave source includes 6 groups of 915 MHz magnetrons and 4 groups of 2.45 MHz magnetrons;

[0066] Temperature zone isolation, with a nitrogen curtain and a silicon carbide partition;

[0067] A control module, including: a LIBS detector with a wavelength range of 200 - 980 nm and a resolution of 0.1 nm; an actuator, a pneumatic control valve and a servo motor-driven vibrating screen;

[0068] In the production line, it is used in connection with a float glass melting furnace with a daily melting capacity of 800 tons.

[0069] Experimental Comparative Example 1

[0070] Experimental purpose: Comparison between traditional yard homogenization, melting furnace pyrolysis and the integrated treatment of the present invention

[0071] Experimental groups: In the control group, traditional rectangular yard pre-homogenization and direct pyrolysis in the melting furnace were used, and in the experimental group, fluidized bed pre-homogenization and microwave gradient pyrolysis of the present invention were used;

[0072] Test raw materials: High-sulfur limestone, quartz sand, and soda ash of the same batch;

[0073] Detection indicators: Homogenization uniformity, pyrolysis efficiency, energy consumption, emissions, and glass defects.

[0074] The process flow of the control group includes the following steps:

[0075] In the pre-homogenization stage, the raw material stack height is 6 m, the stack width is 15 m, the "herringbone" feeding method is adopted, the bridge-type reclaimer takes materials horizontally, the homogenization cycle is 72 hours, and samples are taken for detection every 8 hours.

[0076] Melting furnace pyrolysis, the batch material is put into a float melting furnace with a daily melting capacity of 600 tons, and the CO2 release curve in the temperature range of 1200 - 1250 °C in the 1# small furnace area of the melting furnace is recorded.

[0077] The process flow of the experimental group is operated according to the parameters of Example 2 of the present invention. Among them: Samples are taken every 30 minutes at the outlet of the fluidized homogenization tower, the real-time gas components in each microwave temperature zone are analyzed, and the XRD phase detection of the raw materials after pyrolysis is carried out. The comparison of the homogenization effects after a test cycle of 72 hours is shown in the following table:

[0078] Parameter Control group Experimental group <![CDATA[Standard deviation of SiO2 content (%)]]> 0.38 → 0.21 (decrease by 44.7%) 0.41 → 0.09 (decrease by 78.0%) Range of sampling points (CaO wt%) 1.17 0.23 Segregation degree of -75μm particles 18.3％ 4.1％

[0079] The comparison of pyrolysis performance is shown in the following table:

[0080] Item Control group (furnace decomposition) Experimental group (microwave pyrolysis) Carbonate decomposition rate (%) 82.1±3.2 97.5±0.8 Unit energy consumption (kWh / t glass) 48.7 32.1

[0081] The quality of the glass products is shown in the following table:

[0082] Detection item Control group Experimental group <![CDATA[Number of bubbles (pcs / m 2 )]]> 11.2±2.3 2.7±0.5 Transmittance (550nm, %) 91.3 92.8 Thickness deviation (mm) ±0.15 ±0.07

[0083] Experimental comparative example 2

[0084] Experimental purpose: The differences between the traditional process, the competitor's solution, and the present invention

[0085] Experimental groups: Control group A uses traditional yard homogenization and direct pyrolysis in the melting furnace; Control group B uses drum premixing and pyrolysis in a gas-fired rotary kiln; The experimental group is the fluidized pre-homogenization - microwave pyrolysis integrated system of the present invention.

[0086] Test raw materials: Quartz sand: SiO2 99.2%, D50 = 110 μm; High-sulfur limestone: CaCO3 97.5%, containing S 0.75%; Soda ash: Na2CO3 99.4%, water content 0.3%.

[0087] Test standards: In the homogenization degree detection, according to GB / T 15445.1-2008 "Expression of Particle Size Analysis Results"; In the pyrolysis rate calculation, according to the revised version of JC / T 730-2007 "Thermal Performance Measurement Method for Cement Rotary Kiln".

[0088] Process flow comparison:

[0089] Control group A: Manual batching of raw materials, stacking in a rectangular yard for 72 hours, reclaiming with a bridge reclaimer, and pyrolyzing at 1200 - 1400 °C in a melting furnace.

[0090] Control group B: Dry mixing for 2 hours with a drum mixer, pyrolyzing at 800 °C in a gas-fired rotary kiln, and secondary mixing of the pyrolyzed raw materials.

[0091] Experimental group: Fluidized homogenization tower for 4 hours, microwave gradient pyrolysis for 30 minutes, and recycling the pyrolysis gas to the regenerator.

[0092] The following table shows the comparison of homogenization treatment effects. Among them, control group B requires 1 hour of secondary mixing to compensate for the component analysis after pyrolysis:

[0093] Parameter Control group A Control group B Experimental group Homogenization time (h) 72 2+1* 4 <![CDATA[Coefficient of variation of SiO2 (%)]]> 0.38±0.05 0.25±0.03 0.09±0.01 Segregation degree of -75μm particles 17.2％ 9.8％ 3.7％ Unit power consumption (kWh / t) 5.1 8.7 6.3

[0094] The following table shows the comparison of pyrolysis performance indicators. Among them, * is the microwave low-temperature zone / high-temperature zone:

[0095] Index Control group A Control group B Experimental group Pyrolysis temperature (℃) 1250±50 800±20 650 / 880* <![CDATA[CaCO3 decomposition rate (%)]]> 83.2±2.1 91.5±1.8 98.3±0.5 <![CDATA[SO2 capture rate (%)]]> 12.3 65.7 89.4 Pyrolysis energy consumption (MJ / t) 1280 850 520

[0096] The following table shows the comparison of the quality of glass products:

[0097] Detection item Control group A Control group B Experimental group <![CDATA[Bubble defect (pieces / m 2 )]]> 10.5±2.1 6.3±1.2 2.1±0.4 Transmittance (550nm, %) 91.1 91.8 92.9 Flexural strength (MPa) 78.3 81.6 85.4

[0098] The following table shows the real-time monitoring comparison of SO2 emission concentrations:

[0099] Time axis (min) Control group A (ppm) Control group B (ppm) Experimental group (ppm) 10-20 0 0 0 20-30 0 210 0 30-40 1050 480 85 40-50 1260 320 175

[0100] The following table shows the comparison of the tests for the moisture content of raw materials exceeding the standard:

[0101] Group Treatment effect Recovery measure Control group A The yard is compacted and homogenization fails It is necessary to crush and screen, which takes 8h Control group B The roller is sticky with materials and pyrolysis is uneven Stop the machine for manual cleaning Experimental group The fluidized bed automatically adjusts the gas flow rate to 0.7m / s The system automatically adjusts without intervention

[0102] The following table shows the comparison of the tests for sulfur content fluctuations:

[0103] Group <![CDATA[SO2 emission fluctuation range]]> Control response time Control group A 850 - 1950ppm Unable to respond Control group B 350 - 820ppm >30min Experimental group 150 - 230ppm <2min

[0104] In summary, the SiO2 uniformity of the present invention is improved compared with the traditional process and the competing product solutions. It can still achieve more complete carbonate decomposition at a lower temperature, and its adaptability to raw material fluctuations is significantly better than the comparative solutions.

[0105] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0106] In the present invention, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0107] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those ordinary technical personnel who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine work of design, manufacturing, and production.

[0108] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those ordinary technical personnel in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A pre-homogenization and pyrolysis integrated pretreatment method for glass raw materials, characterized in that: It includes the following steps: Step 1: Feed the glass batch into the fluidized homogenization device, introduce fluidizing gas to make the raw materials in a fluidized state, and apply mechanical vibration simultaneously to perform micron-level mixing on the raw materials; Step 2: Transport the homogenized raw materials to the microwave pyrolysis device, adopt multi-band microwave radiation for gradient heating, and sequentially complete the pyrolysis process of organic matter removal and carbonate decomposition; Step 3: Introduce the gas generated by pyrolysis into the regenerator of the float glass melting furnace through a closed pipeline for secondary combustion utilization; Step 4: Monitor the raw material composition and pyrolysis degree in real time, and dynamically adjust the fluidization parameters and microwave power.

2. The integrated pretreatment method for pre-homogenization and pyrolysis of glass raw materials according to claim 1, characterized in that: The fluidizing gas velocity of the fluidized homogenization device is 0.3 - 0.8 m / s, the mechanical vibration frequency is 25 - 50 Hz, the amplitude is 2 - 5 mm, and an inclined baffle is arranged in the fluidized bed, and the included angle with the horizontal plane is 30 - 60°; 3. A pre-homogenization and pyrolysis integrated pretreatment method for glass raw materials according to claim 1, characterized in that: The microwave pyrolysis is dual-frequency composite radiation of 915 MHz and 2.45 GHz. Among them, 2.45 GHz microwave is used in the low-temperature zone of 200 - 400 °C, and 915 MHz microwave is used in the medium-high temperature zone of 500 - 900 °C, and the residence time in each temperature zone is 10 - 30 minutes; 4. A pre-homogenization and pyrolysis integrated pretreatment method for glass raw materials according to claim 1, characterized in that: During the microwave pyrolysis stage, an alkaline adsorbent with a particle size of 10 μm is added to the raw materials. The adsorbent includes Ca(OH)2 and MgO, and the addition amount is 0.5 - 3 wt% of the total weight of the raw materials; 5. A pre-homogenization and pyrolysis integrated pretreatment method for glass raw materials according to claim 1, characterized in that: In step 4, laser-induced breakdown spectroscopy is used to on-line detect the raw material composition, and the detection data is fed back to the control system; 6. A preprocessing system for implementing the method according to any one of claims 1-5, characterized in that: It includes: A fluidized homogenization tower, a microwave pyrolysis reactor, a gas recovery pipeline, an on-line detection and control system; 7. The pretreatment system according to claim 6, wherein: The microwave pyrolysis reactor is divided into three independent temperature zones. Among them, each temperature zone is equipped with a microwave emission antenna array, an infrared temperature measurement module, and a gas composition sensor; 8. The pretreatment system according to claim 6, characterized in that: The bottom of the fluidized homogenization tower is provided with a conical gas distributor, the hole opening rate of which is 40 - 60%, and the pore size distribution is that the pore size in the central area is 1 - 2 mm and the pore size in the edge area is 2 - 3 mm; 9. The pretreatment system according to claim 6, characterized in that: The included angle between the gas distributor and the vibration direction of the high-frequency vibrating screen is 30 - 45°, and the mesh size of the vibrating screen is 3 - 5 times the average particle size of the raw materials.

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