CN111548113B - Preparation method of high-performance environment-friendly gypsum - Google Patents

Preparation method of high-performance environment-friendly gypsum Download PDF

Info

Publication number
CN111548113B
CN111548113B CN202010279302.2A CN202010279302A CN111548113B CN 111548113 B CN111548113 B CN 111548113B CN 202010279302 A CN202010279302 A CN 202010279302A CN 111548113 B CN111548113 B CN 111548113B
Authority
CN
China
Prior art keywords
tank
warehouse
gypsum
industrial
cellulose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010279302.2A
Other languages
Chinese (zh)
Other versions
CN111548113A (en
Inventor
俞小大
朱东方
吴建军
徐睿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Hexinda Environmental Protection Technology Co ltd
Original Assignee
Anhui Hexinda Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Hexinda Environmental Protection Technology Co ltd filed Critical Anhui Hexinda Environmental Protection Technology Co ltd
Priority to CN202010279302.2A priority Critical patent/CN111548113B/en
Publication of CN111548113A publication Critical patent/CN111548113A/en
Application granted granted Critical
Publication of CN111548113B publication Critical patent/CN111548113B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/16Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing anhydrite, e.g. Keene's cement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/003Methods for mixing
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • C04B2111/00508Cement paints
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a preparation method of high-performance environment-friendly gypsum. The plastering gypsum produced by the traditional process often has the problems of large field pollution and more consumable materials during wall construction. Firstly feeding the vitrified micro bubbles, then simultaneously feeding industrial aluminum sulfate, industrial potassium sulfate and cellulose, pre-mixing the calcium powder in a mixer for 2-3 minutes after feeding the calcium powder, finally simultaneously feeding the anhydrous gypsum, the yellow sand and the cement, and mixing and stirring the raw materials and the auxiliary materials in the mixer for 7 minutes; the invention limits the plant boundary according to the condition that the equivalent sound level contribution value generated by the point sound source at the predicted point needs to meet the limit value of environmental noise emission standard of the factory boundary of industrial enterprises in daytime and nighttime, and simultaneously comprehensively considers the limit of the sanitary protection distance to the plant boundary and takes the smaller value of the two. The waste gas can reach the emission standard, the waste gas and the noise both meet the requirement of a total amount control index, the influence on the surrounding environment is small, and the existing environmental function of the area cannot be changed; no pollutants such as wastewater and solid waste.

Description

Preparation method of high-performance environment-friendly gypsum
Technical Field
The invention belongs to the technical field of gypsum preparation, and particularly relates to a preparation method of high-performance environment-friendly gypsum.
Background
The plastering gypsum has the characteristics of high technical content, high added value, high environmental protection, low energy consumption and good adaptability. The production process has no three wastes discharged, can realize green production, and is the key development direction of the current building material industry. The plastering gypsum is widely applied to house construction and house plastering, is nontoxic and pollution-free, can gradually replace the traditional dry powder mortar plastering, has remarkable technical, economic and social benefits, and has huge market demand. The plastering gypsum is the technical guarantee for realizing green HPC by the house decoration, and has obvious economic, technical and social benefits because the plastering speed and the house decoration are obviously improved, the efficiency and the quality are enhanced, the durability of a wall body is increased, the construction energy consumption is greatly saved, and the like. At present, the demand for house decoration increases year by year. The data show that the product produces ten thousand tons every year in China at present, the project consumption is more than ten thousand tons, the demand is rapidly increased year by year, the market gap is very large, and the product has wide market potential.
In the production process of the plastering gypsum, the anhydrous gypsum, the yellow sand and the cement are firstly added into the mixer, and then other component materials are added, so the operation has the defects that: once metering or timing errors occur, the proportion of other component materials is greatly influenced, the later adding mode of other component materials also easily causes uneven mixing, the long-time mixing can influence the production efficiency, and particularly for the production of plastering gypsum containing vitrified micro bubbles, the later adding of the vitrified micro bubbles can cause the damage (smashing) of the vitrified micro bubbles. Therefore, the wall plastering gypsum produced by the traditional process often has the problems of large field pollution and more consumable materials during wall construction.
Disclosure of Invention
The invention aims to provide a preparation method of high-performance environment-friendly gypsum aiming at the defects of the prior art.
The invention specifically comprises the following steps:
1. storing the raw materials and the auxiliary materials;
weighing purchased anhydrous gypsum by a scale and then putting the anhydrous gypsum into an anhydrous gypsum warehouse, respectively putting purchased yellow sand and cement into a yellow sand warehouse and a cement warehouse, weighing purchased vitrified micro bubbles by the scale and then putting the vitrified micro bubbles into a vitrified micro bubble warehouse, weighing purchased industrial aluminum sulfate by the scale and then putting the purchased industrial potassium sulfate into an industrial potassium sulfate warehouse, weighing purchased cellulose by the scale and then putting the cellulose warehouse, weighing purchased calcium powder by the scale and then putting the calcium powder into a calcium powder warehouse. The anhydrous gypsum warehouse, the yellow sand warehouse, the cement warehouse, the vitrified microsphere warehouse, the industrial aluminum sulfate warehouse, the industrial potassium sulfate warehouse, the cellulose warehouse and the calcium powder warehouse are all provided with cloth bag dust removal systems.
If the purchased anhydrous gypsum is blocky, conveying the blocky anhydrous gypsum to a gypsum reshaping machine for crushing through a screw conveyor in an anhydrous gypsum warehouse; conveying the crushed anhydrous gypsum to an European plate mill through a belt transmission mechanism for grinding to form powdery anhydrous gypsum; the belt transmission mechanism is provided with an outer cover. A bag-type dust removal system is arranged at the gypsum modification machine to collect dust generated in the crushing process; and a cloth bag dust removal system is arranged at the position of the European plate mill to collect dust generated in the milling process.
2. Feeding of raw and auxiliary materials
The method comprises the steps of conveying powdered anhydrous gypsum in an anhydrous gypsum warehouse, yellow sand in a yellow sand warehouse, cement in a cement warehouse, vitrified micro bubbles in a vitrified micro bubble warehouse, industrial aluminum sulfate in an industrial aluminum sulfate warehouse, industrial potassium sulfate in an industrial potassium sulfate warehouse, cellulose in a cellulose warehouse and calcium powder in a calcium powder warehouse to a corresponding belt transmission mechanism through a screw conveyor respectively, conveying the products to a production workshop through the belt transmission mechanism, and then lifting the products in the production workshop through a lifter respectively to convey the products into an anhydrous gypsum tank, a yellow sand tank, a cement tank, a vitrified micro bubble tank, an industrial aluminum sulfate tank, an industrial potassium sulfate tank, a cellulose tank and a calcium powder tank. The elevator is provided with an outer cover for sealing; the feed inlets of the anhydrous gypsum tank, the yellow sand tank, the cement tank, the vitrified micro-bead tank, the industrial aluminum sulfate tank, the industrial potassium sulfate tank, the cellulose tank and the calcium powder tank are all provided with a cloth bag dust removal system.
If the bottom layer plastering gypsum is produced, the yellow sand is dried by a dryer before entering the yellow sand tank. And a cloth bag dust removal system is arranged at a feed inlet of the dryer.
3. The raw materials and the auxiliary materials are measured and mixed according to the mass part ratio
The anhydrous gypsum tank, the yellow sand tank, the cement tank, the vitrified micro bubbles tank, the industrial aluminum sulfate tank, the industrial potassium sulfate tank, the cellulose tank and the calcium powder tank are all fed by a quantitative feeder at the bottom, and the feeding amount is measured by an automatic weighing scale at the bottom; the controller controls the feeding amount and the feeding sequence of each quantitative feeder, and each automatic weighing scale transmits a metering signal to the controller; feeding anhydrous gypsum in an anhydrous gypsum tank, yellow sand in a yellow sand tank, cement in a cement tank, vitrified micro bubbles in a vitrified micro bubble tank, industrial aluminum sulfate in an industrial aluminum sulfate tank, industrial potassium sulfate in an industrial potassium sulfate tank, cellulose in a cellulose tank and calcium powder in a calcium powder tank according to a mass part ratio, and respectively conveying the materials into a mixer through a spiral conveyor with an outer cover; firstly feeding the vitrified micro bubbles, then simultaneously feeding industrial aluminum sulfate, industrial potassium sulfate and cellulose, pre-mixing the calcium powder in a mixer for 2-3 minutes after feeding the calcium powder, finally simultaneously feeding the anhydrous gypsum, the yellow sand and the cement, and mixing and stirring the raw materials and the auxiliary materials in the mixer for 7 minutes; a cloth bag dust removal system is arranged at a feed inlet of the mixer to collect dust generated in the mixing process; and outputting the mixed finished product.
When preparing the bottom layer plastering gypsum, the mass parts of the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder are as follows: 2.05, 0.1, 0.65, 0.25, 0.075, 0.1; when preparing the light bottom layer plastering gypsum, the mass parts of the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder are as follows: 6.15, 0, 1.95, 1.05, 0.225, 0.3 or 6.15, 0.3, 1.95, 0.75, 0.225, 0.3.
4. Sampling inspection of finished products
And (3) performing spot inspection on the mixed finished product, wherein the detection steps are as follows: adding water into a detection sample for stirring, wherein the mass ratio of the detection sample to the water is 2:0.1, detecting the fluidity and the setting time, and detecting the 3d strength after forming, wherein the 3d strength comprises 3d compressive strength and 3d flexural strength. The fluidity of the mixture was 165mm or more after the completion of stirring, and the water retention rate, the setting time and the 3d strength after molding were qualified as shown in the following table. And (4) drying the detected solid mixture of the detection sample, and returning the dried solid mixture to the mixer for use.
Figure GDA0002552839560000031
5. Packaging or bulk
Performing bulk packaging or bagging packaging on the finished products qualified by the spot check, wherein the bulk packaging process is to load the finished products into a tank car; the packaging machine is used for bagging and packaging. A feed port of the packaging machine is provided with a bag-type dust removal system for collecting dust generated in the bag-forming packaging process. When finished products are packaged in bags, the packaged finished products are conveyed to a stacker, and the stacker stacks the packaged finished products and places the stacked finished products into a warehouse.
6. Exhaust gas treatment
The dust in the anhydrous gypsum warehouse, the yellow sand warehouse, the cement warehouse, the vitrified micro bubble warehouse, the industrial aluminum sulfate warehouse, the industrial potassium sulfate warehouse, the cellulose warehouse, the calcium powder warehouse, the production workshop and the stacking finished product warehouse is directly discharged out through an exhaust funnel respectively, and the exhaust funnel is connected with a fan.
Furthermore, the bag-type dust removal system collects dust generated in the discharging process through a fan, and the dust collected by the fan enters the bag through a pipeline.
Further, the height of the anhydrous gypsum tank, the yellow sand tank and the cement tank is 20 m.
Furthermore, the vitrified micro bubbles adopt silicon dioxide, the cellulose adopts hydroxypropyl methyl cellulose, and the calcium powder adopts calcium carbonate.
Furthermore, when the finished product is packaged in bags, the finished product is packaged into 25kg of bags.
Further, 2 sets of automatic spraying devices are installed in the warehouse, and each device is provided with 2 spray heads for settling dust generated by stacking; water used for product sampling inspection and water mist sprayed by an automatic spraying device are both discharged through evaporation; and (4) putting the dust settled by the automatic spraying device into a mixer for recycling.
Further, the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder collected by the cloth bag dust removal systems are respectively put into an anhydrous gypsum tank, a yellow sand tank, a cement tank, a vitrified micro bubbles tank, an industrial aluminum sulfate tank, an industrial potassium sulfate tank, a cellulose tank and a calcium powder tank for recycling, and the dust collected by the cloth bag dust removal systems in the mixing process is put into a mixer for recycling.
Furthermore, the process of waste gas treatment also comprises the step of controlling the dust generated by the running of vehicles for transporting raw materials, auxiliary materials or finished products, and the control measures are the regular spraying on the ground in the factory. In the case of dry roads, the dust emission Q per kilometer of the vehicle is calculated according to the following formula:
Q=0.123(V/5)(W/6.8)0.85(P/0.5)0.75
in the formula, V is the running speed of the vehicle and is in km/h; w is the vehicle load capacity, unit ton; p is the dust amount on the surface of the road, and the unit is kg/m3
Further, the plant boundary is limited according to the sanitary protection distance L between the production unit which discharges the waste gas and the residential area, and the calculation formula of L is as follows:
Figure GDA0002552839560000041
in the formula, CmIs a primary value of concentration limit standard in mg/m3;QcThe unit is kg/h, and the unit is the inorganization exhaust amount of waste gas; r is the equivalent radius of the production unit where the unorganized waste gas emission source is located, the unit is m, and r is (S/pi) calculated according to the floor area S of the production unit0.5(ii) a The calculation coefficient A, B, C, D of the sanitary protection distance is selected according to the regulation of technical method for establishing local atmospheric pollutant emission standard (GB/T13201-1991).
Further, the following measures are adopted to prevent and control noise: the walls of an anhydrous gypsum warehouse, a yellow sand warehouse, a cement warehouse, a vitrified micro bubble warehouse, an industrial aluminum sulfate warehouse, an industrial potassium sulfate warehouse, a cellulose warehouse, a calcium powder warehouse and a production workshop all adopt heat-insulating sound-absorbing materials, and the noise reduction is more than 15dB (A); all fans are provided with sound insulation covers, and noise reduction is achieved by more than 15dB (A); thirdly, damping bases are arranged on the fan, the spiral conveyor, the European board grinder, the gypsum reshaping machine, the hoister, the dryer, the mixer, the discharger and the packing machine, and the noise is reduced by more than 10dB (A); fourthly, greening the factory.
According to the equivalent sound level contribution value L generated by the point sound source i at the predicted pointeqgThe factory boundary is limited by meeting 3 types of standard daytime and nighttime limit values of environmental noise emission standard of factory boundary of industrial enterprise (GB12348-2008), and the smaller value of the limit values of the sanitation protection distance and the factory boundary is taken as the limit value of the factory boundary.
Equivalent sound level contribution value L generated by point sound source i at predicted pointeqgThe calculation is as follows:
Figure GDA0002552839560000042
in the formula, LAiThe sound level A generated by the point sound source i at the predicted point is in dB (A); t is prediction time and unit s; t is tiIs the running time of the point sound source i within the predicted time T, in units of s. The point sound source is a point on a fan, a screw conveyor, an European plate grinder, a gypsum modifying machine, a lifter, a dryer, a mixer, a discharger or a packaging machine.
The point sound source i is at a distance r1The a sound level generated at the predicted point of (3) is calculated as follows:
LAi=LAW-20lgr1-8
in the formula, LAWThe sound power level A of the point sound source i is in dB (A);
the predicted equivalent sound level for the predicted point is calculated as:
Figure GDA0002552839560000051
in the formula, LeqbThe background value for the predicted point is given in dB (A).
The invention has the following beneficial effects:
1. firstly, adding vitrified micro bubbles; the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder are small in doping amount, so that timing errors are reduced, timing accuracy is guaranteed, vitrified micro bubbles are damaged (smashed) as little as possible when premixing is carried out, the vitrified micro bubbles are arranged and added after the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose, the calcium powder and the micro bubbles are mixed together in advance, and therefore, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder can be guaranteed to be mixed uniformly, and production efficiency is improved.
2. The waste gas can reach the emission standard, the waste gas and the noise both meet the requirement of a total amount control index, the influence on the surrounding environment is small, and the existing environmental function of the area cannot be changed; no pollutants such as wastewater and solid waste.
3. According to the invention, after the waste gas and noise precautionary measures are adopted and the factory boundary is limited through scientific accounting, the environmental risk is effectively controlled.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
The invention relates to a preparation method of high-performance environment-friendly gypsum, which is characterized in that two production lines for producing two products of bottom layer plastering gypsum and light bottom layer plastering gypsum are arranged, raw material and auxiliary material storage, raw material and auxiliary material feeding, gypsum modification (crushing) and grinding process share equipment in the two production lines, and after gypsum grinding enters a production workshop, the production workshop is divided into a No. 1 line and a No. 2 line. The production equipment is automatic integrated closed equipment, and manual feeding is not needed. The modification and grinding processes are carried out in a raw material warehouse, and the feeding, drying, metering, mixing, finished product sampling inspection, packaging or bulk loading and stacking are all carried out in a production workshop. The No. 1 line is used for producing bottom layer plastering gypsum, the raw materials comprise yellow sand, and the yellow sand needs to be dried for use.
As shown in figure 1, the preparation method of the high-performance environment-friendly gypsum disclosed by the invention comprises the following specific steps of:
1. storing the raw materials and the auxiliary materials;
when producing the light bottom layer plastering gypsum, the raw materials consist of anhydrous gypsum, cement and vitrified micro bubbles, or consist of anhydrous gypsum, yellow sand, cement and vitrified micro bubbles; when producing the bottom layer plastering gypsum, the raw materials consist of anhydrous gypsum, yellow sand, cement and vitrified micro bubbles; the auxiliary materials consist of industrial aluminum sulfate (the model of aluminum sulfate product ZBDZ-W09 of Zibo popular edible chemical industry Co., Ltd.), industrial potassium sulfate (the model of industrial first-grade potassium sulfate product 00-503 of Zhengzhou Huayan chemical industry Co., Ltd.), cellulose and calcium powder; the vitrified micro bubbles adopt silicon dioxide; the cellulose is hydroxypropyl methylcellulose; the calcium powder is calcium carbonate; the physicochemical properties and toxicology of anhydrite, cement, vitrified micro bubbles, industrial aluminum sulfate, industrial potassium sulfate, cellulose and calcium powder are now listed in table 1.
TABLE 1
Figure GDA0002552839560000061
The emission of the dust of each component must meet the national standard, and in the subsequent steps, the invention adopts various measures to strictly control the emission of the dust of each component.
The purchased anhydrous gypsum is weighed by a scale and then is put into an anhydrous gypsum warehouse, the purchased yellow sand and cement are respectively put into a yellow sand warehouse and a cement warehouse, the purchased vitrified micro bubbles are weighed by the scale and then are put into a vitrified micro bubble warehouse, the purchased industrial aluminum sulfate is weighed by the scale and then is put into an industrial aluminum sulfate warehouse, the purchased industrial potassium sulfate is weighed by the scale and then is put into the industrial potassium sulfate warehouse, the purchased cellulose is weighed by the scale and then is put into a cellulose warehouse, and the purchased calcium powder is weighed by the scale and then is put into a calcium powder warehouse.
The anhydrous gypsum warehouse, the yellow sand warehouse, the cement warehouse, the vitrified micro bubble warehouse, the industrial aluminum sulfate warehouse, the industrial potassium sulfate warehouse, the cellulose warehouse and the calcium powder warehouse are all provided with cloth bag dust removal systems, the cloth bag dust removal systems collect dust generated in the unloading process through fans, and the dust collected by the fans enters the cloth bags through pipelines.
If the purchased anhydrous gypsum is blocky, conveying the blocky anhydrous gypsum to a gypsum reshaping machine for crushing through a screw conveyor in an anhydrous gypsum warehouse; conveying the crushed anhydrous gypsum to an European board grinder through a belt transmission mechanism for grinding to form powdery anhydrous gypsum with the particle size of less than 1 mm; the belt transmission mechanism is provided with an outer cover, and the transmission process is totally closed. A bag-type dust removal system is arranged at the crushing position to collect dust generated in the crushing process; the position of the milling powder is provided with a cloth bag dust removal system for collecting dust generated in the milling process.
2. Feeding of raw and auxiliary materials
The method comprises the steps of conveying powdered anhydrous gypsum in an anhydrous gypsum warehouse, yellow sand in a yellow sand warehouse, cement in a cement warehouse, vitrified micro bubbles in a vitrified micro bubble warehouse, industrial aluminum sulfate in an industrial aluminum sulfate warehouse, industrial potassium sulfate in an industrial potassium sulfate warehouse, cellulose in a cellulose warehouse and calcium powder in a calcium powder warehouse to a corresponding belt transmission mechanism through a screw conveyor respectively, conveying the products to a production workshop through the belt transmission mechanism, and then lifting the products in the production workshop through a lifter respectively to convey the products into an anhydrous gypsum tank, a yellow sand tank, a cement tank, a vitrified micro bubble tank, an industrial aluminum sulfate tank, an industrial potassium sulfate tank, a cellulose tank and a calcium powder tank. The elevator is provided with an outer cover for sealing; the feed inlets of the anhydrous gypsum tank, the yellow sand tank, the cement tank, the vitrified micro-bead tank, the industrial aluminum sulfate tank, the industrial potassium sulfate tank, the cellulose tank and the calcium powder tank are all provided with a cloth bag dust removal system; the height of the anhydrous gypsum tank, the yellow sand tank and the cement tank is 20 m.
If the bottom layer plastering gypsum is produced, the yellow sand is dried by a dryer before entering the yellow sand tank, and the dryer adopts electric heating. The feed inlet of the dryer is provided with a cloth bag dust removal system.
3. The raw materials and the auxiliary materials are measured and mixed according to the mass part ratio
The anhydrous gypsum tank, the yellow sand tank, the cement tank, the vitrified micro bubbles tank, the industrial aluminum sulfate tank, the industrial potassium sulfate tank, the cellulose tank and the calcium powder tank are all fed by a quantitative feeder at the bottom, and the feeding amount is measured by an automatic weighing scale at the bottom; the controller controls the feeding amount and the feeding sequence of each quantitative feeder, and each automatic weighing scale transmits a metering signal to the controller; the method comprises the following steps of feeding anhydrous gypsum in an anhydrous gypsum tank, yellow sand in a yellow sand tank, cement in a cement tank, vitrified micro bubbles in a vitrified micro bubble tank, industrial aluminum sulfate in an industrial aluminum sulfate tank, industrial potassium sulfate in an industrial potassium sulfate tank, cellulose in a cellulose tank and calcium powder in a calcium powder tank according to a mass part ratio, and respectively conveying the materials into a mixer through a spiral conveyor (provided with an outer cover, and the conveying process is totally closed); firstly feeding the vitrified micro bubbles, then simultaneously feeding industrial aluminum sulfate, industrial potassium sulfate and cellulose, pre-mixing the calcium powder in a mixer for 2-3 minutes after feeding the calcium powder, finally simultaneously feeding the anhydrous gypsum, the yellow sand and the cement, and fully mixing and stirring the raw materials and the auxiliary materials in the mixer for 7 minutes; the mixing process is totally sealed, and a cloth bag dust removal system is arranged at a feed inlet of the mixer to collect dust generated in the mixing process; and outputting the mixed finished product. Description of the order of feeding the ingredients: the vitrified micro bubbles have small specific gravity and light weight, and are added firstly in order to reduce the metering error, ensure the metering accuracy and the quality stability; the blending amount of the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder is small, in order to reduce timing errors and ensure accurate timing, and in order to destroy (break) the vitrified micro bubbles as little as possible during premixing, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose, the calcium powder and the micro bubbles are added after being arranged on the vitrified micro bubbles, and the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose, the calcium powder and the micro bubbles are premixed together; if industrial aluminum sulfate, industrial potassium sulfate, cellulose and calcium powder are added at last, the materials are not easy to be uniformly mixed, and the production efficiency is affected after long-time mixing. The invention considers that each automatic metering scale may have metering or timing error under certain condition, and changes the adding sequence of each component in order to reduce the error as much as possible.
When preparing the bottom layer plastering gypsum, the mass parts of the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder are as follows: 2.05, 0.1, 0.65, 0.25, 0.075, 0.1; when preparing the light bottom layer plastering gypsum, the mass parts of the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder are as follows: 6.15, 0, 1.95, 1.05, 0.225, 0.3 or 6.15, 0.3, 1.95, 0.75, 0.225, 0.3.
4. Sampling inspection of finished products
For the mixed finished product, every 100 tons is taken as a batch to be subjected to sampling inspection for 2000 times, the weight of a detected sample is 2kg, and 0.1 liter of water is used for each detection. The detection steps are as follows: adding water into a detection sample for stirring, detecting fluidity and setting time, and carrying out 3d strength detection after forming, wherein the 3d strength comprises 3d compressive strength and 3d flexural strength. The fluidity of the mixture was 165mm or more after the completion of the stirring was acceptable, and the water retention rate, the setting time and the 3d strength after the molding were acceptable as shown in Table 2. And (5) drying the detected solid mixture of the detection sample, and returning to the mixer for use.
TABLE 2
Figure GDA0002552839560000081
5. Packaging or bulk
Bulk packaging or bagging packaging is carried out on the finished products qualified by the spot check according to the requirements of customers, and the finished products are loaded into a tank car in the bulk packaging process (through a discharger); the bags were packed using a packing machine to 25kg per bag. A feed inlet of the discharger is provided with a cloth bag dust removal system for collecting dust generated in the bulk loading process; a feed port of the packaging machine is provided with a bag-type dust removal system for collecting dust generated in the bag-forming packaging process. When finished products are packaged in bags, the packaged finished products are conveyed to a stacker, and the stacker stacks the packaged finished products and places the stacked finished products into a warehouse. Preferably, the warehouse is provided with 2 sets of automatic spraying devices, each device is provided with 2 spray heads, and the water quantity and the intensity can be automatically adjusted to settle dust generated by stacking.
6. Exhaust gas treatment
The anhydrous gypsum warehouse, the yellow sand warehouse, the cement warehouse, the vitrified micro-bead warehouse, the industrial aluminum sulfate warehouse, the industrial potassium sulfate warehouse, the cellulose warehouse and the calcium powder warehouse are dedusted by the cloth bag dedusting system and then reach the emission standard (the dust emission concentration is less than 20mg/m in the emission standard of atmospheric pollutants for cement industry (GB 4915-2013))3) The exhaust pipe with the height of 30m and the inner diameter of 0.4m can be directly discharged outside through the connection of a fan; after dust is removed by a plurality of dust removal systems in a production workshop, the dust is directly discharged through an exhaust funnel with the height of 30m and the inner diameter of 0.4m connected with a fan; after dust is settled in a warehouse stacked with finished products by an automatic spraying device, the finished products can also be directly discharged out by a fan connected with an exhaust funnel with the height of 30m and the inner diameter of 0.4 m.
The water used for product sampling inspection and the water mist sprayed by the automatic spraying device are discharged by evaporation, so no waste water is generated.
The anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder collected by each cloth bag dust removal system can be respectively put into an anhydrous gypsum tank, a yellow sand tank, a cement tank, a vitrified micro bubbles tank, an industrial aluminum sulfate tank, an industrial potassium sulfate tank, a cellulose tank and a calcium powder tank for recycling, and the dust collected by the cloth bag dust removal system in the mixing process and the dust settled by an automatic spraying device in the packaging or bulk process can be both put into a mixer for recycling, so that no industrial solid waste is generated.
As a preferred example, the screw conveyor model was DIN273 (purchased from Weichang successful mechatronic device manufacturing, Inc.), the European plate Mill model was MTW1380, the gypsum remodelling machine model was PE 250X 1000 (purchased from Shanghai Songhao device machinery, Inc.), the elevator model was NE50 (purchased from Weichang successful mechatronic device manufacturing, Inc.), the doser model was YE3 (purchased from Weichang successful mechatronic device manufacturing, Inc.), the automated scale model was DSJL-1 (purchased from Weichang successful mechatronic device manufacturing, Inc.), the mixer model was WZL-6C (purchased from Shanghai mechanical manufacturing, Inc.), the packaging machine model was GZM-SDA (purchased from Shanghai Guangzi automated device, Inc.), and the stacker model was M410-ic-185 (purchased from alloy Intelligent science, Inc.).
As a preferred embodiment, the process of waste gas treatment further comprises controlling dust generated by the running of vehicles transporting raw materials, auxiliary materials or finished products; in the case of dry roads, the dust emission Q per kilometer of the vehicle is calculated according to the following formula:
Q=0.123(V/5)(W/6.8)0.85(P/0.5)0.75
in the formula, V is the running speed of the vehicle and is in a unit of km/h; w is the vehicle load capacity, unit ton; p is the dust content of the road surface in kg/m3
In the embodiment, the driving distance of the vehicle in the factory area is 200 meters, and 30 vehicles are respectively sent out on average every day for empty vehicles and heavy vehicles (vehicles carrying raw materials, auxiliary materials or finished products); the empty vehicle weight is measured according to 10.0t, the heavy vehicle weight is measured according to 30.0t, the vehicle runs at the speed of 20km/h, the ground in the factory area is sprayed regularly to reduce the dust on the road, and based on the dust amount on the road surface, the dust amount is 0.2kg/m3And calculating to obtain the total amount of the dust generated by the empty vehicles per day to be 2.744kg, the total amount of the dust generated by the heavy vehicles per day to be 6.991kg, and the total amount of the dust generated by the heavy vehicles per dayThe total amount was 9.739kg, discharged in an unorganized form.
As a preferred embodiment, a sanitary protection distance should be set between a production unit for unorganized emission of harmful gas and a residential area according to the regulations of technical methods for establishing local emission standards for atmospheric pollutants (GB/T13201-1991).
The calculation formula of the sanitary protection distance L is as follows:
Figure GDA0002552839560000101
in the formula, CmIs a primary value of concentration limit standard in mg/m3;QcThe unit is kg/h, which is the control level that the inorganization discharge amount of harmful gas can reach; r is the equivalent radius of the production unit where the harmful gas inorganization emission source is located, the unit is m, and the unit is m according to the occupied area S of the production unit2) Calculation, r ═ (S/π)0.5(ii) a The sanitary protection distance calculation coefficient A, B, C, D is selected according to the relevant regulations of "technical method for formulating local air pollutant emission standard" (GB/T13201-1991), and in this embodiment, a is 350, B is 0.021, C is 1.85, and D is 0.84 are selected according to table 3.
TABLE 3
Figure GDA0002552839560000102
In this example, Q is takencAnd (5) calculating to obtain the L of 14m when the L is 0.255kg/h, and taking the L of 50m after grading. And limiting the factory boundary according to the L value.
As a preferred embodiment, in order to perform noise prevention and control, the following measures are taken: the method comprises the following steps of firstly, adopting heat-insulating sound-absorbing materials (noise reduction is more than or equal to 15) on the walls of an anhydrous gypsum warehouse, a yellow sand warehouse, a cement warehouse, a vitrified micro bubble warehouse, an industrial aluminum sulfate warehouse, an industrial potassium sulfate warehouse, a cellulose warehouse, a calcium powder warehouse and a production workshop; all fans are provided with sound insulation covers (noise reduction is more than or equal to 15); thirdly, the fan, the screw conveyer, the Europe board grinder, the gypsum modification machine, the hoister, the dryer, the mixer, the discharger and the packing machine are all provided with damping bases (the noise reduction is more than or equal to 10); fourthly, greening the factory.
Equivalent sound level contribution value L generated by point sound source i at predicted pointeqgThe calculation is as follows:
Figure GDA0002552839560000111
in the formula, LAiThe sound level A generated by the point sound source i at the predicted point is in dB (A); t is prediction time and unit s; t is tiIs the running time of the point sound source i within the predicted time T, in units of s. The point sound source is a point on a fan, a screw conveyor, an Oldham grinder, a gypsum modifying machine, a lifter, a dryer, a mixer, a discharger or a packaging machine.
The point sound source i is at a distance r1The a sound level generated at the predicted point of (3) is calculated as follows:
LAi=LAW-20lgr1-8
in the formula, LAWIs the sound power level A (A weight sound power level) of the point sound source i, and the unit is dB (A);
the predicted equivalent sound level for the predicted point is calculated as:
Figure GDA0002552839560000112
in the formula, LeqbThe background value for the predicted point is given in dB (A).
According to the equivalent sound level contribution value L generated by the point sound source i at the predicted pointeqgThe factory boundary is limited by meeting 3 types of standard daytime and nighttime limit values of environmental noise emission standard of factory boundary of industrial enterprise (GB12348-2008), and the smaller value of the limit values of the sanitation protection distance and the factory boundary is taken as the limit value of the factory boundary.

Claims (4)

1. A preparation method of high-performance environment-friendly gypsum is characterized by comprising the following steps: the method comprises the following specific steps:
step 1, storing raw materials and auxiliary materials;
weighing purchased anhydrous gypsum by a scale and then putting the weighed anhydrous gypsum into an anhydrous gypsum warehouse, respectively putting purchased yellow sand and cement into a yellow sand warehouse and a cement warehouse, weighing purchased vitrified micro bubbles by the scale and then putting the vitrified micro bubbles into a vitrified micro bubble warehouse, weighing purchased industrial aluminum sulfate by the scale and then putting the purchased industrial potassium sulfate into an industrial potassium sulfate warehouse, weighing purchased cellulose by the scale and then putting the cellulose warehouse, and weighing purchased calcium powder by the scale and then putting the calcium powder into a calcium powder warehouse; a bag-type dust removal system is arranged in an anhydrous gypsum warehouse, a yellow sand warehouse, a cement warehouse, a vitrified micro bubble warehouse, an industrial aluminum sulfate warehouse, an industrial potassium sulfate warehouse, a cellulose warehouse and a calcium powder warehouse;
if the purchased anhydrous gypsum is blocky, conveying the blocky anhydrous gypsum to a gypsum reshaping machine for crushing through a screw conveyor in an anhydrous gypsum warehouse; conveying the crushed anhydrous gypsum to an European plate mill through a belt transmission mechanism for grinding to form powdery anhydrous gypsum; the belt transmission mechanism is provided with an outer cover; a bag-type dust removal system is arranged at the gypsum modification machine to collect dust generated in the crushing process; a cloth bag dust removal system is arranged at the position of the European plate mill to collect dust generated in the milling process;
step 2, feeding raw materials and auxiliary materials
The method comprises the following steps of conveying powdered anhydrous gypsum in an anhydrous gypsum library, yellow sand in a yellow sand library, cement in a cement library, vitrified micro bubbles in a vitrified micro bubble library, industrial aluminum sulfate in an industrial aluminum sulfate library, industrial potassium sulfate in an industrial potassium sulfate library, cellulose in a cellulose library and calcium powder in a calcium powder library to a corresponding belt transmission mechanism through a screw conveyer respectively, conveying the products to a production workshop through the belt transmission mechanism, and then lifting the products in the production workshop through a lifter respectively to convey the products into an anhydrous gypsum tank, a yellow sand tank, a cement tank, a vitrified micro bubble tank, an industrial aluminum sulfate tank, an industrial potassium sulfate tank, a cellulose tank and a calcium powder tank; the elevator is provided with an outer cover for sealing; the feed inlets of the anhydrous gypsum tank, the yellow sand tank, the cement tank, the vitrified micro-bead tank, the industrial aluminum sulfate tank, the industrial potassium sulfate tank, the cellulose tank and the calcium powder tank are all provided with a cloth bag dust removal system;
if the bottom layer plastering gypsum is produced, drying the yellow sand by using a dryer before the yellow sand enters a yellow sand tank; a cloth bag dust removal system is arranged at a feed inlet of the dryer;
step 3, metering and mixing the raw materials and the auxiliary materials according to the mass part ratio
The anhydrous gypsum tank, the yellow sand tank, the cement tank, the vitrified micro bubbles tank, the industrial aluminum sulfate tank, the industrial potassium sulfate tank, the cellulose tank and the calcium powder tank are all fed by a quantitative feeder at the bottom, and the feeding amount is measured by an automatic weighing scale at the bottom; the controller controls the feeding amount and the feeding sequence of each quantitative feeder, and each automatic weighing scale transmits a metering signal to the controller; feeding anhydrous gypsum in an anhydrous gypsum tank, yellow sand in a yellow sand tank, cement in a cement tank, vitrified micro bubbles in a vitrified micro bubble tank, industrial aluminum sulfate in an industrial aluminum sulfate tank, industrial potassium sulfate in an industrial potassium sulfate tank, cellulose in a cellulose tank and calcium powder in a calcium powder tank according to a mass ratio, and respectively conveying the materials into a mixer through a spiral conveyor with an outer cover; firstly feeding the vitrified micro bubbles, then simultaneously feeding industrial aluminum sulfate, industrial potassium sulfate and cellulose, pre-mixing the calcium powder in a mixer for 2-3 minutes after feeding the calcium powder, finally simultaneously feeding the anhydrous gypsum, the yellow sand and the cement, and mixing and stirring the raw materials and the auxiliary materials in the mixer for 7 minutes; a cloth bag dust removal system is arranged at a feed inlet of the mixer to collect dust generated in the mixing process; outputting the mixed finished product;
when preparing the bottom layer plastering gypsum, the mass parts of the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder are 2.05: 0.1: 0.65: 0.25: 0.075: 0.075: 0.1: 0.1; when preparing the light bottom layer plastering gypsum, the mass part ratio of the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder is 6.15: 0: 1.95: 1.05: 0.225: 0.225: 0.3: 0.3 or 6.15: 0.3: 1.95: 0.75: 0.225: 0.225: 0.3: 0.3;
step 4, sampling and inspecting finished products
And (3) performing spot inspection on the mixed finished product, wherein the detection steps are as follows: adding water into a detection sample for stirring, wherein the mass ratio of the detection sample to the water is 2:0.1, detecting the fluidity and the setting time, and carrying out 3d strength detection after forming, wherein the 3d strength comprises 3d compressive strength and 3d flexural strength; the fluidity of the mixture is 165mm or more after stirring is finished, and the water retention rate, the setting time and the 3d strength after molding are qualified as shown in the following table; drying the detected solid mixture of the detection sample, and returning the dried solid mixture to the mixer for use;
Figure FDA0003564179900000021
step 5, packaging or bulk packaging
Performing bulk packaging or bagging packaging on the finished products qualified by the spot check, wherein the bulk packaging process is to load the finished products into a tank car; packaging with a packaging machine; a feed port of the packaging machine is provided with a bag-type dust removal system for collecting dust generated in the bag-forming packaging process; when the finished products are packaged in bags, the packaged finished products are conveyed to a stacker after being packaged, and the stacker stacks the packaged finished products and places the stacked finished products into a warehouse;
step 6, waste gas treatment
The dust in the anhydrous gypsum warehouse, the yellow sand warehouse, the cement warehouse, the vitrified micro bubble warehouse, the industrial aluminum sulfate warehouse, the industrial potassium sulfate warehouse, the cellulose warehouse, the calcium powder warehouse, the production workshop and the stacking finished product warehouse is directly discharged out through an exhaust funnel respectively, and the exhaust funnel is connected with a fan;
two production lines for producing two products, namely bottom-layer plastering gypsum and light-weight bottom-layer plastering gypsum, are arranged, equipment is shared by the processes of raw material storage and auxiliary material storage, raw material feeding and auxiliary material feeding, gypsum modification and gypsum grinding in the two production lines, and after gypsum grinding enters a production workshop, the production workshop is divided into a No. 1 line and a No. 2 line; modifying and grinding processes are carried out in a raw material warehouse, and feeding, drying, metering, mixing, finished product sampling inspection, packaging or bulk loading and stacking are carried out in a production workshop; the No. 1 line is used for producing bottom layer plastering gypsum, the raw materials comprise yellow sand, and the yellow sand needs to be dried for use;
the bag-type dust removal system collects dust generated in the unloading process through a fan, and the dust collected by the fan enters a bag through a pipeline;
2 sets of automatic spraying devices are installed in the warehouse, and each device is provided with 2 nozzles for settling dust generated by stacking; water used for product sampling inspection and water mist sprayed by an automatic spraying device are both discharged through evaporation; the dust settled by the automatic spraying device is put into a mixer for recycling;
the anhydrous gypsum, the yellow sand, the cement, the vitrified micro bubbles, the industrial aluminum sulfate, the industrial potassium sulfate, the cellulose and the calcium powder collected by each cloth bag dust removal system are respectively put into an anhydrous gypsum tank, a yellow sand tank, a cement tank, a vitrified micro bubbles tank, an industrial aluminum sulfate tank, an industrial potassium sulfate tank, a cellulose tank and a calcium powder tank for recycling, and the dust collected by the cloth bag dust removal systems in the mixing process is put into a mixer for recycling;
the waste gas treatment process also comprises the step of controlling the dust generated by the running of vehicles for transporting raw materials, auxiliary materials or finished products, wherein the control measure is to regularly spray the ground in a factory; in the case of dry roads, the dust emission Q per kilometer of the vehicle is calculated according to the following formula:
Q=0.123(V/5)(W/6.8)0.85(P/0.5)0.75
in the formula, V is the running speed of the vehicle and is in km/h; w is the vehicle load capacity, unit ton; p is the dust amount on the surface of the road, and the unit kg/m 3;
the plant boundary is limited according to the sanitary protection distance L between the production unit discharging the waste gas and the residential area, and the calculation formula of L is as follows:
Figure FDA0003564179900000031
in the formula, CmIs a primary value of concentration limit standard in mg/m3;QcThe unit is kg/h, and the unit is the inorganization exhaust amount of waste gas; r is the equivalent radius of the production unit where the unorganized waste gas emission source is located, the unit is m, and r is (S/pi) calculated according to the floor area S of the production unit0.5(ii) a The calculation coefficient A, B, C, D of the sanitary protection distance is selected according to the regulation of technical method for setting up the local atmospheric pollutant emission standard with the standard number GB/T13201-1991;
the following measures are adopted to prevent and control noise: the walls of an anhydrous gypsum warehouse, a yellow sand warehouse, a cement warehouse, a vitrified micro bubble warehouse, an industrial aluminum sulfate warehouse, an industrial potassium sulfate warehouse, a cellulose warehouse, a calcium powder warehouse and a production workshop all adopt heat-insulating sound-absorbing materials, and the noise reduction is more than 15dB (A); all fans are provided with sound insulation covers, and noise reduction is achieved by more than 15dB (A); thirdly, damping bases are arranged on the fan, the spiral conveyor, the European board grinder, the gypsum reshaping machine, the hoister, the dryer, the mixer, the discharger and the packing machine, and the noise is reduced by more than 10dB (A); fourthly, greening the factory;
according to the equivalent sound level contribution value L generated by the point sound source i at the predicted pointeqgThe factory boundary is limited by meeting 3 types of standard daytime and night limit values in the environmental noise emission standard of industrial enterprise factory boundary with the standard number of GB12348-2008, and the smaller value of the limit values of the factory boundary and the sanitary protection distance is taken in consideration of the limitation of the factory boundary;
equivalent sound level contribution value L generated by point sound source i at predicted pointeqgThe calculation is as follows:
Figure FDA0003564179900000041
in the formula, LAiThe sound level A generated by the point sound source i at the predicted point is in dB (A); t is prediction time and unit s; t is tiThe running time of the point sound source i in the prediction time T is unit s; the point sound source is a point on a fan, a screw conveyor, an Ou plate grinder, a gypsum reshaping machine, a lifter, a dryer, a mixer, a discharger or a packaging machine;
the point sound source i is at a distance r1The a sound level generated at the predicted point of (3) is calculated as follows:
LAi=LAW-20lgr1-8
in the formula, LAWThe sound power level A of the point sound source i is dB (A);
the predicted equivalent sound level for the predicted point is calculated as:
Leq=10lg(100.1Leqg+100.1Leqb)
in the formula, LeqbThe background value for the predicted point is given in dB (A).
2. The preparation method of the high-performance environment-friendly gypsum according to claim 1, characterized in that: the height of the anhydrous gypsum tank, the yellow sand tank and the cement tank is 20 m.
3. The preparation method of the high-performance environment-friendly gypsum according to claim 1, characterized in that: the vitrified micro bubbles are made of silicon dioxide, the cellulose is hydroxypropyl methyl cellulose, and the calcium powder is made of calcium carbonate.
4. The preparation method of the high-performance environment-friendly gypsum according to claim 1, characterized in that: when the finished product is packaged in bags, the finished product is packaged into 25kg of bags.
CN202010279302.2A 2020-04-10 2020-04-10 Preparation method of high-performance environment-friendly gypsum Active CN111548113B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010279302.2A CN111548113B (en) 2020-04-10 2020-04-10 Preparation method of high-performance environment-friendly gypsum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010279302.2A CN111548113B (en) 2020-04-10 2020-04-10 Preparation method of high-performance environment-friendly gypsum

Publications (2)

Publication Number Publication Date
CN111548113A CN111548113A (en) 2020-08-18
CN111548113B true CN111548113B (en) 2022-06-03

Family

ID=71999980

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010279302.2A Active CN111548113B (en) 2020-04-10 2020-04-10 Preparation method of high-performance environment-friendly gypsum

Country Status (1)

Country Link
CN (1) CN111548113B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111548113B (en) * 2020-04-10 2022-06-03 安徽合信大环保科技有限公司 Preparation method of high-performance environment-friendly gypsum
CN114315302A (en) * 2022-01-06 2022-04-12 安徽合信大环保科技有限公司 High-water-retention natural gypsum putty-free mortar and construction method thereof
CN114195475A (en) * 2022-01-06 2022-03-18 安徽合信大环保科技有限公司 Preparation method of high-performance environment-friendly gypsum

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101062859A (en) * 2007-06-11 2007-10-31 赵云龙 Wall heat-insulating rubber powder material and preparation method and using method thereof
CN101265068A (en) * 2008-04-28 2008-09-17 长沙归一建材科技有限公司 Gelatinization material gypsum-cement and producing method thereof
KR20120124933A (en) * 2011-05-06 2012-11-14 순천대학교 산학협력단 Alkali activated gypsum-slag cement composition and concrete constructing method using the same
CN103649006A (en) * 2011-07-01 2014-03-19 瓦克化学股份公司 Gypsum-containing construction material compounds
CN105294012A (en) * 2015-11-25 2016-02-03 诸暨市兆山天峰干混砂浆有限公司 Anti-cracking-shedding and strong-adhesion dry mixing plastering mortar
CN105753421A (en) * 2016-01-29 2016-07-13 安徽省皖北煤电集团有限责任公司含山恒泰非金属材料分公司 Natural anhydrite based lightweight interior wall plastering gypsum material and preparation method thereof
CN106517982A (en) * 2016-11-15 2017-03-22 谢日清 Inorganic insulating and plastering dry powder mortar
CN106927775A (en) * 2017-04-06 2017-07-07 合肥欧克斯新型建材有限公司 A kind of anhydrous type bottom layer brushing gypsum and preparation method thereof
CN107915461A (en) * 2017-12-19 2018-04-17 安徽省皖北煤电集团有限责任公司含山恒泰非金属材料分公司 A kind of natural anhydrite base light internal wall plastering gupsum material and preparation method thereof
CN110436876A (en) * 2019-09-10 2019-11-12 深圳市青青源科技有限公司 A kind of green and healthy natural type lightweight plastering gupsum and preparation method thereof
CN110451912A (en) * 2019-08-13 2019-11-15 武汉理工大学 A kind of light thermal-insulation water proof type plastering ardealite material
CN111410502A (en) * 2020-03-16 2020-07-14 安徽合信大环保科技有限公司 Anhydrite-based light plastering mortar and preparation method thereof
CN111548113A (en) * 2020-04-10 2020-08-18 安徽合信大环保科技有限公司 Preparation method of high-performance environment-friendly gypsum
CN212636109U (en) * 2020-04-20 2021-03-02 安徽合信大环保科技有限公司 Production facility of high performance environmental protection gypsum

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2701451A1 (en) * 2009-05-12 2010-11-12 Georgia-Pacific Gypsum Llc Compositions for the manufacture of gypsum boards, methods of manufacture thereof, and gypsum boards formed therefrom
CN102584156B (en) * 2012-01-16 2014-03-19 上海英硕聚合材料股份有限公司 Fluorgypsum based inorganic thermal mortar
CN107324739A (en) * 2017-07-31 2017-11-07 杨化飞 A kind of novel self-heat preserving walling unit

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101062859A (en) * 2007-06-11 2007-10-31 赵云龙 Wall heat-insulating rubber powder material and preparation method and using method thereof
CN101265068A (en) * 2008-04-28 2008-09-17 长沙归一建材科技有限公司 Gelatinization material gypsum-cement and producing method thereof
KR20120124933A (en) * 2011-05-06 2012-11-14 순천대학교 산학협력단 Alkali activated gypsum-slag cement composition and concrete constructing method using the same
CN103649006A (en) * 2011-07-01 2014-03-19 瓦克化学股份公司 Gypsum-containing construction material compounds
CN105294012A (en) * 2015-11-25 2016-02-03 诸暨市兆山天峰干混砂浆有限公司 Anti-cracking-shedding and strong-adhesion dry mixing plastering mortar
CN105753421A (en) * 2016-01-29 2016-07-13 安徽省皖北煤电集团有限责任公司含山恒泰非金属材料分公司 Natural anhydrite based lightweight interior wall plastering gypsum material and preparation method thereof
CN106517982A (en) * 2016-11-15 2017-03-22 谢日清 Inorganic insulating and plastering dry powder mortar
CN106927775A (en) * 2017-04-06 2017-07-07 合肥欧克斯新型建材有限公司 A kind of anhydrous type bottom layer brushing gypsum and preparation method thereof
CN107915461A (en) * 2017-12-19 2018-04-17 安徽省皖北煤电集团有限责任公司含山恒泰非金属材料分公司 A kind of natural anhydrite base light internal wall plastering gupsum material and preparation method thereof
CN110451912A (en) * 2019-08-13 2019-11-15 武汉理工大学 A kind of light thermal-insulation water proof type plastering ardealite material
CN110436876A (en) * 2019-09-10 2019-11-12 深圳市青青源科技有限公司 A kind of green and healthy natural type lightweight plastering gupsum and preparation method thereof
CN111410502A (en) * 2020-03-16 2020-07-14 安徽合信大环保科技有限公司 Anhydrite-based light plastering mortar and preparation method thereof
CN111548113A (en) * 2020-04-10 2020-08-18 安徽合信大环保科技有限公司 Preparation method of high-performance environment-friendly gypsum
CN212636109U (en) * 2020-04-20 2021-03-02 安徽合信大环保科技有限公司 Production facility of high performance environmental protection gypsum

Also Published As

Publication number Publication date
CN111548113A (en) 2020-08-18

Similar Documents

Publication Publication Date Title
CN111548113B (en) Preparation method of high-performance environment-friendly gypsum
CN101462310B (en) Dry-mixed mortar station
CN100532047C (en) Production and automatic production equipment for building dry powder and mortar
CN106378873A (en) Double-control concrete mixing plant based on computer remote field control
CN201313347Y (en) Dry-mixed mortar station
CN106113279A (en) A kind of dry mortar production method and production line
CN107234730A (en) Mortar stirring tank and method for preparing mortar
CN212636109U (en) Production facility of high performance environmental protection gypsum
CN205889556U (en) Mixed mortar of portable totally enclosed stirring station
CN101879743A (en) Continuous production process and production device of inorganic light aggregate thermal insulation mortar
CN206140705U (en) Dry powder mortar production line
CN206066689U (en) A kind of joint use type dry-mixed mortar production line
CN208431781U (en) A kind of boiler sludge co-combustion system
CN218659753U (en) Green high performance concrete's field is mixed and construction integration production line
CN203557538U (en) Dry-mixed mortar production system
CN110103343A (en) A kind of water surely expects Automatic Production System
CN113561336A (en) Intermittent type formula cement concrete mixing plant
CN207240512U (en) A kind of inorganic heat-insulating dry powder mortar production line
CN106393441A (en) Pull type modularized high-precision stable stirring equipment
CN219620164U (en) Powder melting accelerator's throwing equipment and throwing system
CN111923244A (en) Concrete mixing plant and mixing building without inclined belt
CN213198254U (en) High tower type full-automatic special mortar production line
CN217372897U (en) Environment-friendly dry-mixed mortar station
CN204450872U (en) Metering system and wet mixing mortar produce vehicle
CN219756422U (en) Powder melting accelerator's feeding system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Yu Xiaoda

Inventor after: Zhu Dongfang

Inventor after: Wu Jianjun

Inventor after: Xu Rui

Inventor before: Yu Xiaoda

Inventor before: Yu Di

Inventor before: Xia Honglin

Inventor before: Zhu Dongfang

Inventor before: Wu Jianjun

Inventor before: Zhang Xunhua

Inventor before: Chen Weicheng

Inventor before: Xu Rui

Inventor before: Xia Minghui

GR01 Patent grant
GR01 Patent grant