CN112917645A - Fly ash forming formation method, system, control method, device and storage medium - Google Patents
Fly ash forming formation method, system, control method, device and storage medium Download PDFInfo
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- CN112917645A CN112917645A CN202110177179.8A CN202110177179A CN112917645A CN 112917645 A CN112917645 A CN 112917645A CN 202110177179 A CN202110177179 A CN 202110177179A CN 112917645 A CN112917645 A CN 112917645A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
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Abstract
The application relates to the technical field of resource utilization of solid wastes, in particular to a compatibility method, a control system, equipment and a storage medium for high-temperature melting treatment of fly ash, wherein the compatibility method before the high-temperature melting treatment of the fly ash comprises the following steps: s1: obtaining fly ash and compatible raw materials, and obtaining material components in the fly ash and the compatible raw materials; s2: generating a compatibility scheme based on the material components in the fly ash and the compatible raw materials and the standard component of the target product; s3: and controlling the dosage of the fly ash and each compatible raw material based on the compatibility scheme. By analyzing the content of each component in the fly ash and the compatible raw materials and comparing the content with the standard component amount of a target product, the components of the compatible mixed material are basically consistent with the components of the prepared glass, so that accurate compatibility is realized, the complete high-temperature melting and solidification of the fly ash are guaranteed to be realized while the melting temperature is reduced, the efficiency is improved, and the energy consumption is reduced.
Description
Technical Field
The application relates to the technical field of resource utilization of solid wastes, in particular to a fly ash forming formation method, a system, a control method, equipment and a storage medium.
Background
The fly ash refers to tiny ash particles discharged by fuel (such as coal, household garbage, hazardous waste and other combustible substances) in the combustion process, the particle size of the tiny ash particles is generally 1-100 μm, the tiny ash particles are also called fly ash or soot, the fly ash or the soot accounts for about 20% of the total amount of the waste incineration ash, and the tiny ash particles are substances collected by a flue gas dust collector after the waste incineration.
At present, the high-temperature stabilization treatment of the fly ash becomes a hot spot for research and application, mainly because the high-temperature stabilization treatment technology can solidify heavy metals in the fly ash at high temperature and remove harmful substances such as dioxin, and the slag can be used as materials of civil engineering, cement, buildings and the like. The fly ash needs to be pressed, formed and formed before high-temperature melting treatment so as to be beneficial to the solidification of heavy metals in the fly ash, but in the prior art, the formed and formed fly ash mixture is not up to the requirement of the high-temperature melting treatment process in strength, is easy to break in the transferring and furnace entering processes, or has larger water content, so that the energy consumption of high-temperature melting is increased.
Disclosure of Invention
In order to solve the problems that the compression strength of the formed fly ash cannot meet the requirement of a high-temperature melting treatment process and the high energy consumption of high-temperature melting, the application provides a fly ash forming formation method, a fly ash forming formation system, a fly ash forming control method, fly ash forming equipment and a storage medium.
In a first aspect, the present application provides a fly ash formation method, comprising the following steps:
s1: mixing the fly ash with the compatible raw materials and the auxiliary agent to form a first intermediate product;
s2: pressing the first intermediate product into a second intermediate product, wherein the second intermediate product is a regular or irregular solid block;
s3: standing the second intermediate product at 0-40 ℃ for not less than 24h to form a formed third product;
wherein the water content of the second intermediate product is 10-30 Wt.%, and the density is 1.6-1.8 g/cm3。
Through adopting above-mentioned technical scheme, the flying dust third product after the shaping ization has the compressive strength of preferred, avoids transporting, advances the stove in-process breakage, has reduced the dust volume in the flue gas, can reach high temperature melting process, and has reduced water content wherein, has reduced the energy consumption that steam evaporation caused in the melting process.
In some embodiments, the compatible raw materials are pulverized to a particle size of 5mm or less before mixing with fly ash.
By adopting the technical scheme, the accurate compatibility and later-stage conveying and mixing are facilitated.
In some embodiments, the S2 uses static pressing to press the first intermediate product to form the second intermediate product.
By adopting the technical scheme, the stability of the second intermediate product can be improved, and the crushing phenomenon can be improved.
In some embodiments, in S2, the pressure of the first intermediate product is controlled to be 500-1500T when the first intermediate product is pressed into the second intermediate product, and the pressing time is 3-200S.
Through adopting above-mentioned technical scheme, can realize the shaping solidification, reduce the volume of second intermediate product, convenient transportation, storage make the shaping back result have certain intensity simultaneously, reduce discrete particulate matter to reduce melting process flue gas dust content.
By adopting the technical scheme, the water content of the second intermediate product is 10-30 Wt.%, and the density is 1.6-1.8 g/cm3。
Through adopting above-mentioned technical scheme, can reduce melting process energy loss, reduction in production cost also can guarantee the shaping back simultaneously, material maintenance intensity promotes under this moisture condition.
In some embodiments, the mass of each portion of the second intermediate product is from 200g to 10000 g.
The production efficiency is low due to too few second intermediate products, the materials are too many, and the second intermediate products are not easy to be completely melted in a short time.
In a second aspect, the present application discloses a fly ash formation system, comprising:
the fly ash forming device is used for pressing the first intermediate product into a second intermediate product;
the three-dimensional library is used for the formation of the second intermediate product to form a third product;
the warehousing stacking unit is used for conveying the second intermediate product pressed by the fly ash forming device to the three-dimensional warehouse;
the identification warehouse-out unit outputs third products to the three-dimensional warehouse in sequence based on the formation time of the second intermediate products in the three-dimensional warehouse, and the third products with long formation time are preferentially taken out by the identification warehouse-out unit;
wherein, the three-dimensional storehouse still includes:
the object detection unit is used for detecting whether goods are stored in each storage position of the three-dimensional warehouse or not;
the timing unit starts timing based on the goods signal sent by the target detection unit and stops timing based on the goods-free signal sent by the target detection unit;
the controller is connected with the target detection unit and the timing unit and is communicated with the warehousing stacking unit and the identification ex-warehouse unit, and the controller controls the warehousing stacking unit and the identification ex-warehouse unit to operate based on information data fed back by the detection unit and the timing unit.
By adopting the technical scheme, the management of the forming and formation of the second intermediate product is realized.
In some embodiments, the target detection unit is an infrared detection unit or an image acquisition identification unit.
By adopting the technical scheme, whether goods are stored in each warehouse position of the three-dimensional warehouse can be automatically identified, so that the goods can be automatically fed and discharged.
In a third aspect, the present application discloses a fly ash formation control method, comprising the following steps:
sa: acquiring storage information of each warehouse position of the three-dimensional warehouse;
sb: respectively timing the goods storage duration of each storage position based on the goods information of the storage positions; meanwhile, a warehousing priority order is generated based on the distance between the empty warehouse location and the fly ash forming device, and warehouse locations far away from the fly ash forming device are stored in a second intermediate product preferentially;
and (C) Sc: and comparing the storage time length of each stock position, comparing the maximum storage time length with a pre-stored threshold time length, and preferentially taking out the third product with the maximum storage time length and the time length greater than the threshold time length from the three-dimensional stock.
By adopting the technical scheme, the formation management after the fly ash is formed is realized based on the preset program, and the first-in first-out is realized.
In a fourth aspect, the present application discloses a fly ash formation system control apparatus, comprising:
a memory for storing a computer program;
and the processor is used for realizing the action that the third product with long formation time is preferentially taken out by the identification warehouse-out unit when the computer program is executed, and generating a warehouse-in priority order based on the distance between the empty warehouse and the fly ash forming device.
In a fifth aspect, the present application discloses a computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implements an action of preferentially taking out a third product with a long aging time by the identified warehouse unit, and generates a warehouse entry priority instruction based on a distance between an empty warehouse location and a fly ash molding device.
In summary, the fly ash formation method, system, control method, device and storage medium provided by the present application include at least one of the following beneficial technical effects:
1. the third product of the formed fly ash has better compressive strength, avoids the crushing in the process of transferring and entering the furnace, reduces the dust amount in the flue gas, can ensure the high-efficiency high-temperature melting treatment process, reduces the water content therein, and reduces the energy consumption caused by water vapor evaporation in the melting process.
2. The automatic warehousing of the second intermediate product and the automatic warehousing of the finished third product are realized, the first-in first-out within a specified time range is realized, and the automatic management of the molding and the finishing is realized.
Drawings
FIG. 1 is a flow diagram of a fly ash formation process provided herein;
FIG. 2 is a block diagram of a fly ash formation system provided herein;
FIG. 3 is a flow chart of a fly ash formation control method provided by the present application;
FIG. 4 is a vitreous diffraction pattern;
FIG. 5 is a graph showing the measurement of vitreous body content.
In the figure: 1. a fly ash forming device; 2. a three-dimensional warehouse; 21. a target detection unit; 22. a timing unit; 3. warehousing and stacking units; 4. identifying a warehouse-out unit; 5. and a controller.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application firstly discloses a fly ash molding and forming method, as shown in fig. 1, specifically comprising the following steps:
s1: mixing the fly ash with the compatible raw materials and the auxiliary agent to form a first intermediate product;
wherein the compatible raw materials comprise carbide slag, furnace slag, electroplating sludge, other hazardous waste solids and auxiliaries. The carbide slag is the residue of organic solid waste after pyrolysis treatment, wherein the mass percentage of carbon element is 35-40%, so that the carbide slag can be used as a combustion improver in the high-temperature melting process after being mixed with fly ash to provide a certain heat value, thereby reducing the high-temperature melting cost; the slag is one or more of hazardous waste slag, municipal refuse incinerator slag, coal slag and steelmaking slag; the other dangerous waste solids can be dangerous solid wastes except fly ash, carbide slag, furnace slag and electroplating sludge, such as polluted soil, solid and semi-solid industrial wastes and the like; the auxiliary agent comprises CaO and SiO2、Al2O3And CaF2、B2O3、TiO2、MgO、WO3Calcium phosphate, waste glass, Fe2O3One or more of them, and CaF is required2WO < 5 Wt.% in the total material3< 1 Wt.% in the total material, < 5 Wt.% of calcium phosphate in the total material, < 20 Wt.% of waste glass in the total material, B2O3< 10Wt.% in total material. B is2O3The viscosity of the molten glass body can be reduced, so that the flowing temperature and the melting temperature of the fly ash are reduced; MgO enters silicate glass meltingThe body plays a role of a network former, and a proper amount of MgO is beneficial to the formation of a glass body or the increase of the strength of the glass body and the increase of the fluidity of the glass; TiO 22Obviously changing the interface energy of the enrichment phase, changing the glass structure, reducing the viscosity of the melt, improving the diffusion speed of the mobile ions, and reducing the melting temperature and the flowing temperature of the fly ash; in addition, TiO2Is an effective crystal nucleating agent which can promote the formation of a vitreous body; WO3Is a surfactant and can assist in melting; CaF2The melting point of the fly ash is reduced, the formation and growth of a vitreous body are promoted, and the metal solidification effect is enhanced; the calcium phosphate has good solidifying effect on metal; the waste glass reduces the melting temperature of the fly ash, increases the mechanical strength and hardness of the molten slag and enhances the solidification effect.
Before compatibility, firstly sampling the fly ash and each compatible raw material, preparing samples and tabletting each sample, and analyzing substance components in each sample, thereby obtaining original components in the fly ash and each compatible raw material; and then generating a compatibility scheme based on the fly ash, the material components in the compatible raw materials and the standard components of the target product, so that the components of the mixed material after compatibility are basically consistent with the components of the prepared glass, wherein the compatibility scheme is generated by meeting the formula:
T＝a-0.25b-0.1c-d-e 1
in the formula:
a is the mass percentage of the fly ash in the compatible raw materials;
b is the mass percentage of the slag in the compatible raw materials;
c is the mass percentage of the carbonized slag in the compatible raw materials;
d is the mass percentage of the electroplating sludge in the compatible raw materials;
e is the mass percentage of other dangerous waste solids in the compatible raw materials;
and the value range of T is-0.8-0.5; meanwhile, when a compatibility scheme is generated, the mass ratio of the basic oxide to the acidic oxide is required to be 0.8-1.5: 1, wherein the basic oxides comprise: calcium oxide, magnesium oxide, iron oxide, sodium oxide, potassium oxide; the acidic oxides include: silicon dioxide, aluminum oxide and titanium dioxide, thereby achieving a proper silicon-calcium ratio and keeping the components of the materials consistent so as to ensure the stable treatment of the subsequent process.
Then, washing the fly ash for dechlorination to ensure that the water content in the washed fly ash is less than or equal to 30 percent and Cl-The content is less than or equal to 10 mg/g.
Specifically, the water washing process comprises the following steps:
step 1: sampling and analyzing through multiple points and multiple frequencies, analyzing the chlorine content in the fly ash, namely establishing a multi-tank simultaneous ash discharge operation mechanism, and analyzing the chlorine content of the fly ash to be treated every 4 hours;
step 2: determining the flow rate of the washing water according to the water-cement ratio of 2-4:1 according to the analysis result in the Sa;
and step 3: washing fly ash by a multi-stage countercurrent washing process, performing solid-liquid separation on ash water of the next stage of washing by dehydration and filter pressing, taking filtrate as washing water of the previous stage, washing solids in the next stage of washing, supplementing fresh water in the last stage of washing, and respectively adopting a first plate-and-frame filter, a second plate-and-frame filter and a third plate-and-frame filter in the dehydration and filter pressing operation, wherein the area ranges of filter plates of the first plate-and-frame filter, the second plate-and-frame filter and the third plate-and-frame filter are 1.5-2m2Controlling the vacuum degree to be 0.08 Mpa.g;
and 4, step 4: carrying out solid-liquid separation.
After the fly ash is washed by the fly ash washing system, the water content in the fly ash after the washing is less than or equal to 30 percent, and Cl-The content is less than or equal to 10 mg/g.
The fly ash is subjected to washing dechlorination treatment and then is subjected to compatibility mixing with the selected compatible raw materials and the auxiliary agent to form a first intermediate product, and the compatible raw materials are crushed to the particle size of less than or equal to 5mm before mixing, so that the fly ash is more beneficial to accurate compatibility and later-period conveying and mixing.
The fly ash is mixed with the compatible raw materials and the auxiliary agents to form a first intermediate product, and then the first intermediate product enters S2,
s2: and (3) carrying out static pressure pressing on the first intermediate product through a brick making machine to form a second intermediate product into a regular or irregular three-dimensional block, such as: rectangular, cubic, other irregularTetrahedrons, cylinders, ellipsoids, spheres, hemispheres, etc. In the pressing process, the pressure is controlled to be 500-1500T, the pressing time is 3-200 s, the water content of the second intermediate product is controlled to be 10-30 Wt.%, and the density is 1.6-1.8 g/cm3Therefore, gaps exist among the fly ash in the second intermediate product after molding, gas is convenient to flow, heat is uniformly transferred to the raw materials, the fly ash is convenient to melt, the subsequent melting process is shortened, and the purposes of utilizing the heat to the maximum degree and improving the production efficiency are achieved. The quality of each part of the second intermediate product is controlled to be 200 g-10000 g, so that the production efficiency and the melting effect can be balanced.
Pressing into a second intermediate product, performing S3 formation treatment,
s3: and standing the second intermediate product for not less than 24 hours at the temperature of 0-40 ℃ to form a third product after formation, wherein the water content in the mixture can be reduced after formation, so that the energy consumption caused by water vapor evaporation is reduced in the melting process, the strength of the formed material is improved, the breakage in the transferring and furnace entering processes is avoided, and the dust content in the smoke is reduced.
As shown in fig. 2, the present application also discloses a fly ash formation system, comprising:
the fly ash forming device 1 can be a brick making machine and is used for pressing the first intermediate product into a blocky second intermediate product;
a three-dimensional warehouse 2 for the storage formation of the second intermediate product to form a third product, wherein in the embodiment of the application, the three-dimensional warehouse 2 is a plurality of rows of shelves arranged in an array, and the shelves are in a multilayer structure;
the warehousing stacking unit 3 is used for conveying the second intermediate products pressed by the fly ash forming device 1 to the three-dimensional warehouse 2, in the embodiment of the application, the warehousing stacking unit 3 is an AGV automatic conveying robot which can convey the second intermediate products formed by the fly ash forming device 1 to the specified position of the three-dimensional warehouse 2 according to a set path;
the recognition storage unit 4 is an AGV automatic transfer robot that sequentially outputs the third products to the three-dimensional storage 2 according to a predetermined program at the formation time based on the second intermediate products in the three-dimensional storage 2, and the third products having a long formation time are preferentially taken out by the recognition storage unit 4.
In order to realize that the identification unit 4 can output the third product out of the stereoscopic warehouse 2 in sequence based on the formation time of the second intermediate product in the stereoscopic warehouse 2, the stereoscopic warehouse 2 further comprises:
the target detection unit 21 is used for detecting whether goods are stored in each storage position of the three-dimensional warehouse 2, the target detection unit 21 can be an infrared detection unit, such as an infrared detector, installed in each storage position of the three-dimensional warehouse 2, and also can be an image acquisition and identification unit, and comprises a plurality of cameras installed in any space of the three-dimensional warehouse 2 and an image identification unit connected with the cameras, the infrared detector can feed back different signals to distinguish whether the goods are stored, the cameras can shoot pictures in a coverage area and feed back the pictures to the image identification unit to compare and identify the pictures with the pictures which are originally used for storing the goods, and whether the goods are stored in each storage position is judged;
the controller 5 is communicated with the target detection unit 21 to acquire judgment information of the target detection unit 21 and control other elements to act;
a timing unit 22, which is connected to the controller 5 in a communication manner, and is capable of starting timing based on the goods presence signal sent by the target detection unit 21 and stopping timing based on the goods absence signal sent by the target detection unit 21;
the controller 5 is also communicated with the warehousing stacking unit 3 and the identification ex-warehouse unit 4, the controller 5 controls the warehousing stacking unit 3 to store the second intermediate products in the three-dimensional warehouse based on information data fed back by the detection unit 21 and the timing unit 22, and controls the identification ex-warehouse unit 4 to output third products out of the three-dimensional warehouse 2 in sequence based on the formation time of the second intermediate products in the three-dimensional warehouse 2.
As shown in fig. 3, the present application also discloses a fly ash formation control method, comprising the following steps:
sa: acquiring storage information of each warehouse location of the three-dimensional warehouse 2;
sb: respectively timing the goods storage duration of each storage position based on the goods information of the storage positions; meanwhile, a warehousing priority order is generated based on the distance between the empty warehouse location and the fly ash forming device 1, and warehouse locations far away from the fly ash forming device 1 are stored in a second intermediate product preferentially;
and (C) Sc: comparing the storage time length of each storage position, and comparing the maximum storage time length with a pre-stored threshold time length, wherein the third product with the maximum storage time length and the time length larger than the threshold time length is preferentially taken out from the three-dimensional warehouse 2, and the threshold time length is 24 h.
The application discloses flying dust shaping ization controlgear, its characterized in that includes:
a memory for storing a computer program;
and a processor for implementing the action of preferentially recognizing the third product with long formation time to be taken out by the warehouse unit 4 and generating a warehouse entry priority order based on the distance between the empty warehouse location and the fly ash forming device 1 when executing the computer program.
The application also discloses a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the action of preferentially recognizing the third product with long formation time to be taken out by the warehouse-out unit 4 as described above, and generating a warehouse-in priority order based on the distance between the empty warehouse location and the fly ash molding device 1.
Examples
The following compatible raw materials and auxiliary agents are selected for compatibility, and the compatible raw materials are crushed to the particle size of less than or equal to 5mm before mixing:
the content of main substances in the first intermediate product formed by compatibility is as follows: wt. -%)
| Components | CaO | SiO2 | Al2O3 | Fe2O3 | MgO | TiO2 | Na2O | K2O |
| Example 1 | 37.69 | 29.27 | 10 | 8.04 | 1.29 | 2.02 | 0.09 | 0.73 |
| Example 2 | 35.83 | 30.12 | 9.78 | 8.23 | 1.23 | 2.13 | 0.08 | 0.67 |
| Example 3 | 38.54 | 28.93 | 10.07 | 7.89 | 1.21 | 1.97 | 0.1 | 0.76 |
The compatible materials in the above embodiments are mixed uniformly, and the first intermediate product is pressed into a second intermediate product by a brick making machine under static pressure, wherein the relation between the pressing condition and the water content and the density is as follows:
| pressure/T | Pressing time/S | Water content/wt. -%) | Density/g/cm3 | Mass/g | |
| Example 1 | 500 | 3 | 30 | 1.6 | 200 |
| Example 2 | 700 | 80 | 28.2 | 1.68 | 3500 |
| Example 3 | 1200 | 140 | 27.4 | 1.74 | 7800 |
| Example 4 | 1300 | 170 | 26.3 | 1.77 | 10000 |
| Example 5 | 1500 | 200 | 10 | 1.8 | 10000 |
The second intermediate product of example 3 was formed under the following conditions with respect to water content and density:
therefore, the water content of the third product is gradually reduced along with the increase of the formation time, the reduction of the water content reduces the dust amount in the flue gas, the high-temperature melting treatment process can be achieved, and the energy consumption caused by water vapor evaporation is reduced.
And after formation, sending the mixture into a high-temperature smelting furnace for high-temperature melting, and finally performing water quenching to obtain a glass state substance.
After the fly ash is melted, water quenching is carried out to obtain a glass-state substance, and the obtained glass body is subjected to acid leaching toxicity detection to detect the leaching toxicity leaching method-acetic acid buffer solution method of HJT 300-2007 solid waste, so that the following results are obtained:
wherein, the total silver, mercury (calculated by total mercury), nickel (calculated by total nickel), beryllium (calculated by total beryllium), lead (calculated by total lead), copper (calculated by total copper), selenium (calculated by total selenium), zinc (calculated by total zinc), total chromium, arsenic (calculated by total arsenic), cadmium (calculated by total cadmium), barium (calculated by total barium) are detected according to the following formula: GB5085.3-2007 'identification of hazardous waste identification Standard leach toxicity', main instruments/equipment/numbers: NexiON 300XICP-MS (C-735);
inorganic fluoride (no calcium fluoride), detection according to: GB5085.3-2007 "hazardous waste identification standard leach toxicity identification" appendix F, main instrumentation/numbering: ICS-2100 ion chromatograph (C-712);
cyanide, detection basis: GB5085.3-2007 "hazardous waste identification standard leach toxicity identification" appendix G, main instrumentation/numbering: ICS-2100 ion chromatograph (C-712);
hexavalent chromium, the detection basis: GB5085.3-2007 'identification of hazardous waste identification Standard leach toxicity', main instruments/equipment/numbers: 752N uv-vis spectrophotometer (17320424);
pH, detection basis: GB/T15555.12-1995 glass electrode method for solid waste corrosivity determination, main instruments/equipment/numbering: a PHS-3C pH meter (16320268);
vitreous body content, detection basis: GB18046-2017 "granulated blast furnace slag powder for use in cement, mortar and concrete" 6.7, main instruments/equipment/numbers: ultima IV X-ray diffractometer (C-584);
loss on ignition, the basis of detection: 6B18046-2017 granulated high slag protecting powder for cement, mortar and concrete 6.7, main instruments/numbers: SQP electronic balance (19320634TL-3014 ceramic fiber muffle (C725)).
According to the method for measuring the vitreous body content of slag powder in appendix C of GB/T18046-2008 granulated blast furnace slag powder used in cement and concrete, the vitreous body content of the slag sample to be inspected is measured; grinding until no granular sensation is produced by hand twisting, placing a proper amount of the powder in an aluminum sample cell, slightly flattening the powder by using a glass plate, and testing the powder on a machine.
The instrument comprises the following steps: XRD-6100;
excitation source: CuKa, λ 0.15406 nm;
monochromatization: a graphite monochromator;
tubing pressure/flow: 40kV/40 mA;
scanning mode: step scanning;
DS/SS/RS：1°/1°/0.3mm；
step size/time: 0.02 °/1.5 s;
angle range: 20-45 degrees.
As shown in fig. 4, the diffraction pattern of the glassy substance is shown as follows: the spectrum had a weaker, sharper diffraction peak, except for the arrow, which was essentially a steamed bun peak, indicating essentially an amorphous phase (vitreous) in the sample.
As shown in fig. 5, according to the above-mentioned national standard document, after subtracting the background, the ratio of the integrated intensity of the amorphous steamed bun peak to the integrated intensity of the total peak is calculated to characterize the amorphous phase (vitreous body) content, and the amorphous phase (vitreous body) content is 99.6%.
The content of vitreous body in the slag is determined by using an XRD diffractometer according to GB/T18046-2008 granulated blast furnace slag powder used in cement and concrete; the results show that the sample is essentially amorphous with a vitreous content of 99.6%.
In addition, by adopting the scheme, the melting temperature is controlled to 1250-.
The above embodiments are only used to describe the technical solutions of the present application in detail, but the above embodiments are only used to help understanding the method and the core idea of the present application, and should not be construed as limiting the present application. Those skilled in the art should also appreciate that various modifications and substitutions can be made without departing from the scope of the present disclosure.
Claims (10)
1. The fly ash forming and forming method is characterized by comprising the following steps:
s1: mixing the fly ash with the compatible raw materials and the auxiliary agent to form a first intermediate product;
s2: pressing the first intermediate product into a second intermediate product, wherein the second intermediate product is a regular or irregular solid block;
s3: standing the second intermediate product at 0-40 ℃ for not less than 24h to form a formed third product;
wherein the water content of the second intermediate product is 10-30 Wt.%, and the density is 1.6-1.8 g/cm3。
2. A fly ash formation method according to claim 1, wherein the compatible raw materials are pulverized to a particle size of 5mm or less before being mixed with fly ash.
3. A fly ash formation method according to claim 1, wherein S2 is a method of static pressing to press the first intermediate product into the second intermediate product.
4. A fly ash molding and forming method according to claim 3, wherein in S2, the pressure is controlled to be 500-1500T when the first intermediate product is pressed into the second intermediate product, and the pressing time is 3-200S.
5. A fly ash molding and forming method according to claim 3, wherein the mass of each part of the second intermediate product is 200g to 10000 g.
6. The fly ash formation system is characterized by comprising:
a fly ash forming device (1) for pressing the first intermediate product into a second intermediate product;
a stereo library (2) for the formation of the second intermediate product to form a third product;
the warehousing stacking unit (3) is used for conveying the second intermediate product pressed by the fly ash forming device (1) to the three-dimensional warehouse (2);
the identification warehouse-out unit (4) outputs third products out of the three-dimensional warehouse (2) in sequence based on the formation time of the second intermediate products in the three-dimensional warehouse (2), and the third products with long formation time are preferentially taken out by the identification warehouse-out unit (4);
wherein the stereoscopic garage (2) further comprises:
the target detection unit (21) is used for detecting whether goods are stored in each storage position of the three-dimensional storage (2);
a timing unit (22) which starts timing based on the goods existence signal sent by the target detection unit (21) and stops timing based on the goods nonexistence signal sent by the target detection unit (21);
in addition, the warehouse system further comprises a controller (5), the controller (5) is connected with the target detection unit (21) and the timing unit (22) and is communicated with the warehouse stacking unit (3) and the recognition warehouse-out unit (4), and the controller (5) controls the warehouse stacking unit (3) and the recognition warehouse-out unit (4) to operate based on information data fed back by the detection unit (21) and the timing unit (22).
7. A fly ash formation system according to claim 6, wherein the target detection unit (21) is an infrared detection unit or an image acquisition recognition unit.
8. The fly ash forming formation control method is characterized by comprising the following steps:
sa: acquiring storage information of each warehouse position of the three-dimensional warehouse (2);
sb: respectively timing the goods storage duration of each storage position based on the goods information of the storage positions; meanwhile, a warehousing priority order is generated based on the distance between the empty warehouse location and the fly ash forming device (1), and warehouse locations far away from the fly ash forming device (1) are stored in a second intermediate product preferentially;
and (C) Sc: comparing the storage time of each stock position, comparing the maximum storage time with a pre-stored threshold time, and preferentially taking out the third product with the maximum storage time and longer than the threshold time from the three-dimensional warehouse (2).
9. Fly ash shaping ization controlgear, its characterized in that includes:
a memory for storing a computer program;
a processor for implementing the action of preferentially taking out the third product with long aging time by the identification warehouse unit (4) as claimed in claim 8 when the computer program is executed, and generating a warehouse entry priority order based on the distance between the empty warehouse location and the fly ash molding device (1).
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the action of preferentially extracting the long-aging third product by the identification warehousing unit (4) as claimed in claim 8, and generating warehousing priority instructions based on the distance between the empty warehouse location and the fly ash molding device (1).
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