CN112521033A - Cement clinker and processing technology thereof - Google Patents
Cement clinker and processing technology thereof Download PDFInfo
- Publication number
- CN112521033A CN112521033A CN202011287075.4A CN202011287075A CN112521033A CN 112521033 A CN112521033 A CN 112521033A CN 202011287075 A CN202011287075 A CN 202011287075A CN 112521033 A CN112521033 A CN 112521033A
- Authority
- CN
- China
- Prior art keywords
- cement clinker
- raw materials
- portions
- slag
- water
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/47—Cooling ; Waste heat management
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of cement clinker processing, in particular to a cement clinker and a processing technology of the cement clinker, wherein the cement clinker is made into blocks by processing equipment, carbon dioxide is filled into the cement clinker in the preparation process to form air holes, and the cement clinker is composed of the following raw materials in parts by weight: 100 portions of limestone, 40 to 50 portions of magnesite, 30 to 40 portions of water-based resin, 20 to 26 portions of carbide slag, 4 to 6 portions of yellow sandstone, 2.5 to 4.5 portions of clay, 1.5 to 3 portions of coal gangue, 1 to 2 portions of glass slag, 0.2 to 0.5 portion of vanadium slag and 0.1 to 0.2 portion of stabilizer; the cement clinker is made into blocks by processing equipment, so that the amount of dust generated in the use process of the cement clinker is reduced, the environment and the health of a human body are protected, meanwhile, the cement clinker has the characteristic of convenience in transportation and taking, and the efficiency of mixing the cement clinker with water is improved and the preparation efficiency of the building material is improved by filling carbon dioxide into the cement clinker to form air holes in the preparation process of the cement clinker.
Description
Technical Field
The invention belongs to the technical field of cement clinker processing, and particularly relates to a cement clinker and a processing technology of the cement clinker.
Background
The cement clinker is a semi-finished product which is prepared by using limestone, clay and iron raw materials as main raw materials, preparing the raw materials into raw materials according to a proper proportion, burning the raw materials until the raw materials are partially or completely melted, and cooling the raw materials, wherein the main chemical components of the most common portland cement clinker in the cement industry are calcium oxide, silicon dioxide and a small amount of aluminum oxide and iron oxide; the main minerals comprise tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite; when workers use the cement clinker, the cement clinker is granular, so a large amount of cement dust is generated, the cement dust is sucked into human bodies and finally stays in lungs and is solidified, so that alveoli are blocked to form silicosis, the health of the workers is affected, and the cement clinker is fatal in severe cases.
Some technical solutions related to cement clinker and cement clinker processing technology also appear in the prior art, for example, a chinese patent with application number CN201910444974.1 discloses a cement clinker processing technology and cement clinker, which includes the following operation steps: 1. pretreatment of raw materials: preparing raw materials, homogenizing the raw materials, preheating the raw materials and performing pre-decomposition; 2. and (3) clinker firing: feeding mixed fuel into the rotary kiln, and controlling the temperature in the kiln at 1100-1300 ℃; feeding the raw materials pre-decomposed in the step 1 into a rotary kiln, sintering for 10-20min, and cooling by a grate cooler to generate clinker; the mixed fuel comprises the following components in parts by weight of 0.2-0.5: 1-1.5: 2-5 of bamboo chips, wood chips and coal powder; by adopting the processing technology of the technical scheme, the sintering temperature of clinker can be reduced, the sintering time can be shortened, the coal powder consumption can be relatively reduced, and the energy consumption can be reduced; however, the technical scheme does not fundamentally consider the harm of cement clinker to human bodies in the using process, so that the health of workers is influenced when the workers use the cement clinker for a long time, and the limitation of the scheme is caused.
In view of the above, in order to overcome the above technical problems, the present invention provides a cement clinker and a processing technology of the cement clinker, which adopts a special cement clinker structure to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the cement clinker is made into blocks by processing equipment, so that the amount of dust generated in the use process of the cement clinker is reduced, the environment and the health of a human body are protected, the cement clinker has the characteristic of convenience in transportation and taking, and the efficiency of mixing the cement clinker with water is improved by filling carbon dioxide into the cement clinker to form air holes in the preparation process of the cement clinker, so that the preparation efficiency of the building material is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the cement clinker is prepared into blocks by processing equipment, carbon dioxide is filled into the cement clinker to form air holes in the preparation process, and the cement clinker is prepared from the following raw materials in parts by weight: 100 portions of limestone, 40 to 50 portions of magnesite, 30 to 40 portions of water-based resin, 20 to 26 portions of carbide slag, 4 to 6 portions of yellow sandstone, 2.5 to 4.5 portions of clay, 1.5 to 3 portions of coal gangue, 1 to 2 portions of glass slag, 0.2 to 0.5 portion of vanadium slag and 0.1 to 0.2 portion of stabilizer; the specifications of the carbide slag, the vanadium slag and the glass slag are all 30-60 meshes; the storage environment of the cement clinker is drying and ventilation;
when the cement clinker is used, workers can generate a large amount of cement dust in the use process of the cement clinker due to the fact that the cement clinker is granular, the cement dust can be sucked into the human body and finally stays in the lung and is solidified, so that alveolus can be blocked to form silicosis, the health of workers is affected, and the cement clinker is fatal in severe cases; therefore, the cement clinker is made into blocks, so that a worker can conveniently take and use the cement clinker in the process of taking and using the cement clinker, dust generated by the cement clinker is reduced, each block-shaped cement clinker is made into the same mass, a worker can conveniently adjust the material proportion, after water is contacted with the cement clinker, the water-based resin in the cement clinker is quickly melted when the water is contacted with the cement clinker, the block-shaped cement clinker is loosened into particles, calcium carbonate in quicklime reacts with the water to generate a large amount of heat, the activity of the water-based resin is further improved, the water-based resin is quickly dissolved in the water, the cement clinker is better mixed with the water, and the contact area between the water and the cement clinker is increased by arranging the air holes on the inner wall of the cement clinker, so that the mixing efficiency of the cement clinker and the water is improved; by adding the water-based resin, the adhesive force of the formed building material is improved; magnesite contains a large amount of magnesium oxide and magnesium carbonate and is the main component of materials in the building industry; the yellow sandstone contains rich oxides, can improve the strength of cement clinker, the vanadium slag mineral phase components mainly comprise vanadium iron spinel, fayalite, quartz and metallic iron, the clay is soil with few sand grains and viscosity, and the clay has good plasticity only when water does not easily pass through the clay; by adding the stabilizer, the overall stability of the cement clinker is improved; the main components in the coal gangue are Al2O3 and SiO2, and in addition, the coal gangue also contains Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements with different quantities, thereby providing favorable conditions for the strength of cement clinker; the glass slag contains various inorganic minerals, so that the strength of the cement clinker is further improved; the cement clinker is made into blocks by processing equipment, so that the amount of dust generated in the use process of the cement clinker is reduced, the environment and the health of a human body are protected, meanwhile, the cement clinker has the characteristic of convenience in transportation and taking, and the efficiency of mixing the cement clinker with water is improved by filling carbon dioxide into the cement clinker in the preparation process of the cement clinker to form air holes, so that the preparation efficiency of the building material is improved.
A processing technology of cement clinker is suitable for the cement clinker and comprises the following steps:
s1: raw material treatment: crushing, removing impurities and drying raw materials to prepare particles, wherein the raw materials comprise limestone, magnesite, carbide slag, yellow sandstone, clay, coal gangue, glass slag and vanadium slag; then the carbide slag, the vanadium slag and the glass slag are put into a grinder for grinding, so that the specifications of the carbide slag, the vanadium slag and the glass slag are all 30-60 meshes; the crushing process is more economical and convenient than the grinding process, and the compactness among raw material particles is improved by grinding the carbide slag, the vanadium slag and the glass slag; the raw materials are dried, so that the storage period and the quality of the raw materials are improved;
s2: heating raw materials: pour the raw materials into processing equipment's rectangle pond, again with the top plate closure of raw materials through rectangle pond middle part, heat to 1300 ℃ through the resistance wire on the rectangle pond lateral wall to the raw materials, calcium carbonate just begins to decompose with magnesium carbonate at 600 degrees centigrade: MgCO3 → MgO + CO 2; CaCO3 → CaO + CO 2; the air pump performs air extraction from the bottom of the rectangular tank through a first air pipe; the raw materials are heated, so that the moisture of the raw materials is further removed, the cement clinker failure caused by the reaction of the moisture and calcium oxide in the later period is prevented, and the main minerals in the raw materials are subjected to solid-phase reaction after the carbonate is heated and decomposed;
s3: mixing and forming: after the raw materials are fired, stopping the working of the resistance wire and the air pump, pumping the top plate away from the middle part of the rectangular pool, cooling the raw materials in the rectangular pool by a cooling device, and adding a stabilizer and water-based resin into the rectangular pool in the cooling process of the raw materials; the water-based resin is softened under the action of the temperature of the raw material after contacting the raw material, then the raw material in the rectangular pool is stirred through the stirring rod, after the raw material is stirred, carbon dioxide is flushed into the rectangular pool along the bottom of the rectangular pool through the air pump through the second air pipe, the carbon dioxide needs to be dried before the carbon dioxide is flushed into the rectangular pool, the water-based resin is solidified along with the reduction of the temperature of the raw material, so that the raw material and the water-based resin are bonded together to form blocks, and meanwhile, part of the carbon dioxide is stored in gaps of the; the raw materials are cooled, so that the internal stress of the raw materials is enhanced, and the mechanical property of the raw materials is further improved; the stirring rod has a crushing effect on the raw materials while stirring the raw materials, so that the raw materials are granular; the water-based resin is added into the raw materials, so that the amount of dust generated in the production process of cement clinker is reduced; the carbon dioxide is dried before being flushed, so that the phenomenon that water in the carbon dioxide enters the raw materials again to cause failure of the raw materials is avoided;
s4: cutting and packaging: taking out the blocky raw materials from the rectangular tank, cutting the raw materials into the same specification to prepare cement clinker, and finally packaging the cement clinker; the raw materials are cut into the same specification, so that workers do not need to weigh cement clinker before use, and the working efficiency of the workers is greatly improved.
Further, the top plate is not melted at 1300 ℃, the material of the top plate is preferably tungsten, and the thickness of the top plate is not more than 2 mm; the material through with the roof is made by tungsten to prevent that the roof from melting at raw materials heating in-process roof, simultaneously with the thickness of roof no longer than 2mm, make the roof have certain elasticity, prevent that the raw materials from being heated and expanding the crowded phenomenon of warping the roof, causing the roof can't follow the middle part in rectangle pond and taking out, and then influence cement clinker's processing.
Further, in the S3 mixing and forming process, the temperature of the carbon dioxide in the air pump is 150-160 ℃, and the temperature of the raw materials when the water-based resin is added into the raw materials is 150-160 ℃; the temperature of the raw materials is controlled when the water-based resin is added into the raw materials, so that the phenomenon that the water-based resin is burnt due to overhigh temperature of the raw materials is prevented, the temperature of the water-based resin is maintained by the carbon dioxide by controlling the temperature in the carbon dioxide in the air pump, and the problem that the quality of cement clinker is influenced because the water-based resin is solidified before uniform mixing is caused due to too fast cooling of the raw materials is prevented.
Further, the cutting method of the raw material in the cutting and packaging of S4 is water jet cutting; when water jetted by water jet cutting contacts with cement clinker, water-based resin in the cement clinker is molten when meeting water, and after the water-based resin is molten, the notch is loosened, so that the cutting speed of the notch is accelerated, and meanwhile, a large amount of heat can be generated in the process that calcium oxide at the notch reacts when meeting water to generate calcium hydroxide, so that the cutting speed of raw materials is further accelerated, and meanwhile, the raw material notch is solidified after being cooled and dried after being cut, so that the phenomenon that the notch of the cement clinker is loosened in the transportation process is prevented, and the quality of the cement clinker is improved.
Further, the raw materials are integrally wrapped by the preservative film before being cut in S4 cutting and packaging, and the preservative film is attached to the raw materials; wrap up the raw materials through wrapping up the plastic wrap before the raw materials is cut for the rivers that the cutting produced can not sputter other positions of raw materials, cause the loose phenomenon in other positions of raw materials, through laminating plastic wrap and raw materials, prevent that the shape of raw materials from taking place to warp under the impact of rivers, further improved the stability of raw materials in the cutting process, and then improved cement clinker's integrality.
The invention has the following beneficial effects:
1. the cement clinker is made into blocks by processing equipment, so that the amount of dust generated in the use process of the cement clinker is reduced, the environment and the health of a human body are protected, meanwhile, the cement clinker has the characteristic of convenience in transportation and taking, and the efficiency of mixing the cement clinker with water is improved by filling carbon dioxide into the cement clinker in the preparation process of the cement clinker to form air holes, so that the preparation efficiency of the building material is improved.
2. According to the invention, the raw material is cooled, so that the internal stress of the raw material is enhanced, and the mechanical property of the raw material is further improved; the stirring rod has a crushing effect on the raw materials while stirring the raw materials, so that the raw materials are granular; the water-based resin is added into the raw materials, so that the amount of dust generated in the production process of cement clinker is reduced; the carbon dioxide is dried before being flushed, so that the phenomenon that the water in the carbon dioxide enters the raw materials again to cause the failure of the raw materials is prevented.
3. According to the processing equipment, the top plate is made of tungsten, so that the top plate is prevented from being melted in the raw material heating process, meanwhile, the thickness of the top plate is not more than 2mm, the top plate has certain elasticity, and the phenomenon that the top plate cannot be drawn out from the middle of the rectangular pool due to the fact that the top plate is extruded and deformed after the raw materials are heated and expanded is prevented, and further processing of cement clinker is influenced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a process for manufacturing cement clinker according to the present invention;
FIG. 2 is a simplified view of the processing apparatus of the present invention;
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 2, the processing technology of the cement clinker of the present invention comprises the following steps:
s1: raw material treatment: crushing, removing impurities and drying raw materials to prepare particles, wherein the raw materials comprise limestone, magnesite, carbide slag, yellow sandstone, clay, coal gangue, glass slag and vanadium slag; then the carbide slag, the vanadium slag and the glass slag are put into a grinder for grinding, so that the specifications of the carbide slag, the vanadium slag and the glass slag are all 30-60 meshes; the crushing process is more economical and convenient than the grinding process, and the compactness among raw material particles is improved by grinding the carbide slag, the vanadium slag and the glass slag; the raw materials are dried, so that the storage period and the quality of the raw materials are improved;
s2: heating raw materials: pour the raw materials into processing equipment's rectangle pond, again with the top plate closure of raw materials through rectangle pond middle part, heat to 1300 ℃ through the resistance wire on the rectangle pond lateral wall to the raw materials, calcium carbonate just begins to decompose with magnesium carbonate at 600 degrees centigrade: MgCO3 → MgO + CO 2; CaCO3 → CaO + CO 2; the air pump performs air extraction from the bottom of the rectangular tank through a first air pipe; the raw materials are heated, so that the moisture of the raw materials is further removed, the cement clinker failure caused by the reaction of the moisture and calcium oxide in the later period is prevented, and the main minerals in the raw materials are subjected to solid-phase reaction after the carbonate is heated and decomposed;
s3: mixing and forming: after the raw materials are fired, stopping the working of the resistance wire and the air pump, pumping the top plate away from the middle part of the rectangular pool, cooling the raw materials in the rectangular pool by a cooling device, and adding a stabilizer and water-based resin into the rectangular pool in the cooling process of the raw materials; the water-based resin is softened under the action of the temperature of the raw material after contacting the raw material, then the raw material in the rectangular pool is stirred through the stirring rod, after the raw material is stirred, carbon dioxide is flushed into the rectangular pool along the bottom of the rectangular pool through the air pump through the second air pipe, the carbon dioxide needs to be dried before the carbon dioxide is flushed into the rectangular pool, the water-based resin is solidified along with the reduction of the temperature of the raw material, so that the raw material and the water-based resin are bonded together to form blocks, and meanwhile, part of the carbon dioxide is stored in gaps of the; the raw materials are cooled, so that the internal stress of the raw materials is enhanced, and the mechanical property of the raw materials is further improved; the stirring rod has a crushing effect on the raw materials while stirring the raw materials, so that the raw materials are granular; the water-based resin is added into the raw materials, so that the amount of dust generated in the production process of cement clinker is reduced; the carbon dioxide is dried before being flushed, so that the phenomenon that water in the carbon dioxide enters the raw materials again to cause failure of the raw materials is avoided;
s4: cutting and packaging: taking out the blocky raw materials from the rectangular tank, cutting the raw materials into the same specification to prepare cement clinker, and finally packaging the cement clinker; the raw materials are cut into the same specification, so that workers do not need to weigh cement clinker before use, and the working efficiency of the workers is greatly improved.
As an embodiment of the present invention, the top plate does not melt at 1300 ℃, the material of the top plate is preferably tungsten, and the thickness of the top plate does not exceed 2 mm; the material through with the roof is made by tungsten to prevent that the roof from melting at raw materials heating in-process roof, simultaneously with the thickness of roof no longer than 2mm, make the roof have certain elasticity, prevent that the raw materials from being heated and expanding the crowded phenomenon of warping the roof, causing the roof can't follow the middle part in rectangle pond and taking out, and then influence cement clinker's processing.
In one embodiment of the invention, in the S3 mixing and forming process, the temperature of the carbon dioxide in the air pump is 150-160 ℃, and the temperature of the raw material when the aqueous resin is added into the raw material is 150-160 ℃; the temperature of the raw materials is controlled when the water-based resin is added into the raw materials, so that the phenomenon that the water-based resin is burnt due to overhigh temperature of the raw materials is prevented, the temperature of the water-based resin is maintained by the carbon dioxide by controlling the temperature in the carbon dioxide in the air pump, and the problem that the quality of cement clinker is influenced because the water-based resin is solidified before uniform mixing is caused due to too fast cooling of the raw materials is prevented.
As an embodiment of the present invention, the cutting method of the raw material in the S4 cutting and packaging is water jet cutting; when water jetted by water jet cutting contacts with cement clinker, water-based resin in the cement clinker is molten when meeting water, and after the water-based resin is molten, the notch is loosened, so that the cutting speed of the notch is accelerated, and meanwhile, a large amount of heat can be generated in the process that calcium oxide at the notch reacts when meeting water to generate calcium hydroxide, so that the cutting speed of raw materials is further accelerated, and meanwhile, the raw material notch is solidified after being cooled and dried after being cut, so that the phenomenon that the notch of the cement clinker is loosened in the transportation process is prevented, and the quality of the cement clinker is improved.
As an embodiment of the invention, the raw materials are wholly wrapped by the preservative film before being cut in the S4 cutting and packaging process, and the preservative film is attached to the raw materials; wrap up the raw materials through wrapping up the plastic wrap before the raw materials is cut for the rivers that the cutting produced can not sputter other positions of raw materials, cause the loose phenomenon in other positions of raw materials, through laminating plastic wrap and raw materials, prevent that the shape of raw materials from taking place to warp under the impact of rivers, further improved the stability of raw materials in the cutting process, and then improved cement clinker's integrality.
Example 1:
the cement clinker is prepared into blocks through processing equipment, carbon dioxide is filled into the cement clinker to form air holes in the preparation process, and the cement clinker is prepared from the following raw materials in parts by weight: 100 parts of limestone, 40 parts of magnesite, 30 parts of water-based resin, 20 parts of carbide slag, 4 parts of yellow sandstone, 2.5 parts of clay, 1.5 parts of coal gangue, 1 part of glass slag, 0.2 part of vanadium slag and 0.1 part of stabilizer; the specifications of the carbide slag, the vanadium slag and the glass slag are all 30 meshes; the storage environment of the cement clinker is dry and ventilated.
Example 2
The cement clinker is prepared into blocks through processing equipment, carbon dioxide is filled into the cement clinker to form air holes in the preparation process, and the cement clinker is prepared from the following raw materials in parts by weight: 105 parts of limestone, 45 parts of magnesite, 35 parts of water-based resin, 23 parts of carbide slag, 5 parts of yellow sandstone, 3.5 parts of clay, 2.3 parts of coal gangue, 1.5 parts of glass slag, 0.35 part of vanadium slag and 0.15 part of stabilizer; the specifications of the carbide slag, the vanadium slag and the glass slag are all 50 meshes; the storage environment of the cement clinker is dry and ventilated.
Example 3
The cement clinker is prepared into blocks through processing equipment, carbon dioxide is filled into the cement clinker to form air holes in the preparation process, and the cement clinker is prepared from the following raw materials in parts by weight: 110 parts of limestone, 50 parts of magnesite, 40 parts of water-based resin, 26 parts of carbide slag, 6 parts of yellow sandstone, 4.5 parts of clay, 3 parts of coal gangue, 2 parts of glass slag, 0.5 part of vanadium slag and 0.2 part of stabilizer; the specifications of the carbide slag, the vanadium slag and the glass slag are all 60 meshes; the storage environment of the cement clinker is dry and ventilated.
Experimental verification in order to test the use effect of the cement clinker, the processing technology of the cement clinker is applied to a factory A as an experimental group, 10 workers of the factory A are investigated during one month of cement clinker production in the factory A, inhalable particles in the factory A are detected at the same time, and then mask use conditions of the 10 workers of the factory A are counted; the existing second factory for producing cement clinker is investigated, the investigation project is the same as the first factory, and the specific data is as follows:
experimental groups:
table one
From table one, we can:
in the first factory, according to the cement clinker processing technology, inhalable particles are in 219 mu g/m3On the left and right sides, the mask of the worker is changed into 2 times per day, and the lung infection of 10 workers is found to be good by performing lung examination on 10 workers;
control group:
table two
Note: no. 5 workers do not change the mask according to the requirements of a factory B, so that lung infection is serious, and the patients have a doctor in a hospital;
from table two, we can obtain:
the inhalable particles in the second plant are 417 mu g/m3On the left and right sides, except one worker, the masks of other workers are replaced by 4 times per day by feeding 9 workersPulmonary examination revealed that 9 workers had poor pulmonary infection.
The cement clinker is made into blocks by processing equipment, so that the amount of dust generated in the use process of the cement clinker is reduced, the environment and the health of a human body are protected, and meanwhile, the cement clinker has the characteristic of convenience in transportation and taking, so that the cement clinker has wide market prospect.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims; the scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A cement clinker characterized by: the cement clinker is made into blocks by processing equipment, carbon dioxide is filled into the cement clinker to form air holes in the preparation process, and the cement clinker is composed of the following raw materials in parts by weight: 100 portions of limestone, 40 to 50 portions of magnesite, 30 to 40 portions of water-based resin, 20 to 26 portions of carbide slag, 4 to 6 portions of yellow sandstone, 2.5 to 4.5 portions of clay, 1.5 to 3 portions of coal gangue, 1 to 2 portions of glass slag, 0.2 to 0.5 portion of vanadium slag and 0.1 to 0.2 portion of stabilizer; the specifications of the carbide slag, the vanadium slag and the glass slag are all 30-60 meshes; the storage environment of the cement clinker is dry and ventilated.
2. A process for manufacturing cement clinker, which is suitable for use in the cement clinker of claim 1, characterized in that: the processing technology comprises the following steps:
s1: raw material treatment: crushing, removing impurities and drying raw materials to prepare particles, wherein the raw materials comprise limestone, magnesite, carbide slag, yellow sandstone, clay, coal gangue, glass slag and vanadium slag; then the carbide slag, the vanadium slag and the glass slag are put into a grinder for grinding, so that the specifications of the carbide slag, the vanadium slag and the glass slag are all 30-60 meshes;
s2: heating raw materials: pour the raw materials into processing equipment's rectangle pond, again with the top plate closure of raw materials through rectangle pond middle part, heat to 1300 ℃ through the resistance wire on the rectangle pond lateral wall to the raw materials, calcium carbonate just begins to decompose with magnesium carbonate at 600 degrees centigrade: MgCO3 → MgO + CO 2; CaCO3 → CaO + CO 2; the air pump performs air extraction from the bottom of the rectangular tank through a first air pipe;
s3: mixing and forming: after the raw materials are fired, stopping the working of the resistance wire and the air pump, pumping the top plate away from the middle part of the rectangular pool, cooling the raw materials in the rectangular pool by a cooling device, and adding a stabilizer and water-based resin into the rectangular pool in the cooling process of the raw materials; the water-based resin is softened under the action of the temperature of the raw material after contacting the raw material, then the raw material in the rectangular pool is stirred through the stirring rod, after the raw material is stirred, carbon dioxide is flushed into the rectangular pool along the bottom of the rectangular pool through the air pump through the second air pipe, the carbon dioxide needs to be dried before the carbon dioxide is flushed into the rectangular pool, the water-based resin is solidified along with the reduction of the temperature of the raw material, so that the raw material and the water-based resin are bonded together to form blocks, and meanwhile, part of the carbon dioxide is stored in gaps of the;
s4: cutting and packaging: taking out the blocky raw materials from the rectangular tank, cutting the raw materials into the same specification to prepare cement clinker, and finally packaging the cement clinker.
3. A process for manufacturing cement clinker as claimed in claim 2, wherein: the top plate is not melted at 1300 ℃, the top plate is preferably made of tungsten, and the thickness of the top plate is not more than 2 mm.
4. A process for manufacturing cement clinker according to claim 3, wherein: in the S3 mixing and forming process, the temperature of the carbon dioxide in the air pump is 150-160 ℃, and the temperature of the raw materials when the water-based resin is added into the raw materials is 150-160 ℃.
5. A process for manufacturing cement clinker according to claim 4, wherein: the cutting method of the raw material in the cutting and packaging at S4 is water jet cutting.
6. A process for manufacturing cement clinker according to claim 5, wherein: the raw materials are integrally wrapped by the preservative film before being cut in S4 cutting and packaging, and the preservative film is attached to the raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011287075.4A CN112521033A (en) | 2020-11-17 | 2020-11-17 | Cement clinker and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011287075.4A CN112521033A (en) | 2020-11-17 | 2020-11-17 | Cement clinker and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112521033A true CN112521033A (en) | 2021-03-19 |
Family
ID=74981528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011287075.4A Pending CN112521033A (en) | 2020-11-17 | 2020-11-17 | Cement clinker and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112521033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831034A (en) * | 2021-08-27 | 2021-12-24 | 江苏山河水泥有限公司 | Preparation method for applying cement clinker by using waste residue titanium gypsum |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780143A (en) * | 1987-04-24 | 1988-10-25 | Betz Laboratories, Inc. | Methods for suppressing cement clinker dust emissions |
| CN105254193A (en) * | 2015-10-30 | 2016-01-20 | 东北大学 | Preparation method for cement and cement clinker by taking waste as raw material |
| CN105255080A (en) * | 2015-10-28 | 2016-01-20 | 林砚秋 | Water-soluble cement packaging material and preparing method thereof |
| CN105439481A (en) * | 2015-11-16 | 2016-03-30 | 中国建筑材料科学研究总院 | Method for increasing content of periclase in high-magnesium moderate-heat cement clinker |
| CN107777904A (en) * | 2016-08-24 | 2018-03-09 | 南通金灿锻造有限公司 | Clinker |
| CN110818336A (en) * | 2019-12-20 | 2020-02-21 | 中国建筑标准设计研究院有限公司 | Preparation process of flaky dry mortar |
| CN211250774U (en) * | 2019-11-21 | 2020-08-14 | 青岛大明新型建材有限公司 | Cement air stirrer |
-
2020
- 2020-11-17 CN CN202011287075.4A patent/CN112521033A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780143A (en) * | 1987-04-24 | 1988-10-25 | Betz Laboratories, Inc. | Methods for suppressing cement clinker dust emissions |
| CN105255080A (en) * | 2015-10-28 | 2016-01-20 | 林砚秋 | Water-soluble cement packaging material and preparing method thereof |
| CN105254193A (en) * | 2015-10-30 | 2016-01-20 | 东北大学 | Preparation method for cement and cement clinker by taking waste as raw material |
| CN105439481A (en) * | 2015-11-16 | 2016-03-30 | 中国建筑材料科学研究总院 | Method for increasing content of periclase in high-magnesium moderate-heat cement clinker |
| CN107777904A (en) * | 2016-08-24 | 2018-03-09 | 南通金灿锻造有限公司 | Clinker |
| CN211250774U (en) * | 2019-11-21 | 2020-08-14 | 青岛大明新型建材有限公司 | Cement air stirrer |
| CN110818336A (en) * | 2019-12-20 | 2020-02-21 | 中国建筑标准设计研究院有限公司 | Preparation process of flaky dry mortar |
Non-Patent Citations (1)
| Title |
|---|
| 殷为宏等: "《难熔金属材料与工程应用》", 30 June 2012, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831034A (en) * | 2021-08-27 | 2021-12-24 | 江苏山河水泥有限公司 | Preparation method for applying cement clinker by using waste residue titanium gypsum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3177578B1 (en) | Carbonatable calcium silicate compositions | |
| EP3694818B1 (en) | Method for manufacturing binders hardening by hydration and carbonation | |
| EP3426619B1 (en) | Hazing control for carbonatable calcium silicate-based cements and concretes | |
| KR102418336B1 (en) | Cement compound and a method for the production thereof | |
| EP3405446A1 (en) | Novel cement chemistries | |
| CN105060745A (en) | Belite-sulphoaluminate-ferrous aluminate cement and preparation method thereof | |
| RU2521980C1 (en) | Composition for producing heat-resistant composites | |
| US20140290535A1 (en) | Binder composition | |
| CN102838376A (en) | Preparation method of light-weight closed-pore ceramic heat insulating board | |
| CN104724953A (en) | Method for preparing natural hydraulic lime by using limestone and quartz powder | |
| CN112521033A (en) | Cement clinker and processing technology thereof | |
| CN114804672B (en) | Superfine iron tailing filling cementing material and preparation method thereof | |
| EP3466900B1 (en) | Building elements made from binders hardening by combined hydration and carbonation | |
| RU2374206C1 (en) | Raw mixture for making ceramic objects | |
| EP1226097B1 (en) | Synthetic silicate pellet composition and methods of making and using thereof | |
| KR101332346B1 (en) | Product and method of inorganic binder composition utilizing aluminosilicate and magnesiumsilicate | |
| JP2013100202A (en) | Mortar composition for repair | |
| RU2278089C1 (en) | Ceramic mass for facing slab production | |
| CN107117840A (en) | The phosphor aluminate cement and its production method of a kind of utilization industrial residue production | |
| KR100805730B1 (en) | Method for using basic refractories for tundish coating materials to produce high quality steel | |
| KR101366835B1 (en) | Cement composition using desulphurizing dust | |
| RU2751188C1 (en) | Method for producing white cement clinker | |
| CN112624733A (en) | FFC slurry ceramic biscuit with low shrinkage rate and preparation process thereof | |
| KR101471381B1 (en) | Inorganic binder composite | |
| CN112661494A (en) | Composite antibacterial ceramic tile and preparation process thereof |
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 |