CN115532357A - Method for manufacturing silicate magnesium slag cement by using magnesium slag - Google Patents
Method for manufacturing silicate magnesium slag cement by using magnesium slag Download PDFInfo
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- CN115532357A CN115532357A CN202211050823.6A CN202211050823A CN115532357A CN 115532357 A CN115532357 A CN 115532357A CN 202211050823 A CN202211050823 A CN 202211050823A CN 115532357 A CN115532357 A CN 115532357A
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 76
- 239000011777 magnesium Substances 0.000 title claims abstract description 76
- 239000002893 slag Substances 0.000 title claims abstract description 71
- 239000004568 cement Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title description 4
- 239000002994 raw material Substances 0.000 claims abstract description 119
- 238000010008 shearing Methods 0.000 claims abstract description 66
- 239000011398 Portland cement Substances 0.000 claims abstract description 31
- 238000002360 preparation method Methods 0.000 claims abstract description 20
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052919 magnesium silicate Inorganic materials 0.000 claims abstract description 17
- 235000019792 magnesium silicate Nutrition 0.000 claims abstract description 17
- 239000000391 magnesium silicate Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000010440 gypsum Substances 0.000 claims abstract description 7
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 7
- 230000000979 retarding effect Effects 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims description 37
- 239000006185 dispersion Substances 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 21
- 238000012937 correction Methods 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 13
- 230000000670 limiting effect Effects 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005245 sintering Methods 0.000 abstract description 4
- 239000003469 silicate cement Substances 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 235000012054 meals Nutrition 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
-
- 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
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for preparing magnesium silicate slag cement by using magnesium slag, which belongs to the technical field of preparation of silicate cement and aims at solving the problems of poor convenience and efficiency when magnesium slag raw materials are added into the silicate cement, wherein the preparation method of the magnesium silicate slag cement is based on a preparation device, and comprises the following steps: s1, selecting a material with the mass ratio of 12:3:1:4, respectively feeding the calcareous raw material, the argillaceous raw material, the gypsum retarding raw material and the magnesium slag correcting raw material into a shearing section of the treatment box through four feed hoppers communicated with the top surface of the treatment box to form primary mixing and shearing and crushing treatment on the raw materials; the invention simplifies the mixing preparation process steps of the portland cement raw material containing magnesium slag by carrying out triple crushing treatment on the four raw materials, and can effectively improve the homogeneity of the portland cement raw material containing magnesium slag by carrying out triple crushing treatment on the raw materials, thereby improving the quality of the subsequent sintering treatment by a cement kiln.
Description
Technical Field
The invention belongs to the technical field of portland cement preparation, and particularly relates to a method for preparing portland magnesium slag cement by using magnesium slag.
Background
The iron correction raw material used in raw materials of silicate clinker in domestic building material market is iron powder or sulfuric acid residue, raw materials prepared by the two correction raw materials are poor in combustibility, the cost of the raw materials is high, the later strength of the clinker is generally 53-56 Mpa, and the later strength of the clinker is difficult to be greatly improved, so that the addition amount of mixed materials (especially industrial residue) in the prepared general silicate cement is restricted, the cement produced by the clinker is poor in adaptability to lignin and naphthalene series water reducing agents, and the cement has poor sulfate corrosion resistance, drying shrinkage resistance and alkali aggregate expansion resistance; limestone as another raw material is also in shortage of resources and increased in cost, and there is a trend toward active search of a substitute or partial substitute for limestone.
In recent years, along with the rapid development of the magnesium smelting industry in China, the annual output of raw magnesium and magnesium alloy is increased year by year, more and more magnesium slag is discharged, the MgO content in the magnesium slag is between 6 and 8 percent and is higher than that in limestone, so how to effectively and reasonably treat, develop and utilize the magnesium slag is important for achieving the purposes of saving energy, saving resources, changing waste into valuables and turning harm into benefit, and when the magnesium slag is reasonably utilized, the magnesium slag is rapidly and efficiently mixed with raw materials of portland cement to prepare the magnesium slag.
Therefore, a method for manufacturing portland magnesium slag cement by using magnesium slag is needed, and the problems of poor convenience and efficiency in preparation of portland cement by adding a magnesium slag raw material in the prior art are solved.
Disclosure of Invention
The invention aims to provide a method for manufacturing magnesium silicate slag cement by using magnesium slag, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the method for preparing the magnesium silicate slag cement by using the magnesium slag is based on a preparation device, and comprises the following steps of:
s1, selecting a material with a mass ratio of 12:3:1:4, respectively feeding the calcareous raw material, the clay raw material, the gypsum slow-setting raw material and the magnesium slag correction raw material into a shearing section of the treatment box through four feed hoppers communicated with the top surface of the treatment box to form primary mixing and shearing and crushing treatment on the raw materials;
s2, dispersing the sheared and crushed raw materials into an extrusion section of a treatment box, and repeatedly jacking, extruding and crushing the raw materials to form extrusion crushing treatment on the raw materials;
s3, dropping the extruded and crushed raw materials into a crushing section for rotary crushing treatment to form re-crushing treatment on the raw materials, dropping the crushed and refined raw materials into a spiral material feeding section for spiral conveying treatment to form spiral conveying discharge on the raw materials, and forming portland cement raw materials containing magnesium slag correction raw materials;
and S4, feeding the portland cement raw material containing the magnesium slag correction raw material into a cement kiln for calcination, and collecting and processing the calcined portland cement raw material to finish the preparation of the portland cement clinker containing the magnesium slag correction raw material.
What need explain in the scheme is that the preparation facilities is including handling the case, handle the case including from top to bottom communicate the shearing section, extrusion section, crushing section and the spiral feeding section that set up in proper order, four the hopper is evenly distributed in the top surface of shearing section, the inner wall of crushing section rotates and is connected with two crushing rollers that are the symmetric distribution, two the outer end of crushing roller is coaxial fixed with reversing gear respectively, two reversing gear meshes the connection, the outer wall of crushing section be provided with one of them crushing roller coaxial coupling's crushing motor, the inner wall of spiral feeding section is provided with the spiral feeding mechanism with crushing roller matched with, the bottom inner wall of shearing section is fixed with the dispersion impeller, the inside of shearing section be provided with dispersion impeller top surface matched with shear crushing mechanism, the inside of extrusion section be provided with crushing roller and dispersion impeller matched with jacking extrusion mechanism.
It is further worth explaining that the spiral feeding mechanism comprises a rotating shaft which is connected with the inner wall of the spiral feeding section in a rotating mode, an auger blade is tightly sleeved on the outer surface of the rotating shaft, a discharge hole which is formed in the inner wall of the spiral feeding section is formed in one side of the auger blade, a transmission belt wheel is coaxially fixed on the outer end surface of the crushing roller respectively, and a transmission belt is arranged on the outer surface of each transmission belt wheel.
What need explain further, cut broken mechanism include with shear segment top inner wall and dispenser top surface rotate the shear bar of connecting, the top surface of shear segment install with shear bar coaxial coupling's shearing motor, the top inner wall of shear segment is fixed with four stands that are the symmetric distribution, the periphery of shear bar is provided with four the common fixed spacing dish of surface of stand, spacing dish with the opposite face of shear segment rotates and is connected with the profile of tooth circle, the bottom surface of profile of tooth circle is fixed with a plurality of dwangs that are evenly distributed, the top surface of spacing dish is provided with the driving gear with the coaxial fixed of shear bar, the top surface of shear segment rotates and is connected with driven gear, driven gear's both sides respectively with the driving gear with the profile of tooth circle meshing is connected.
As a preferred embodiment, the surface of dwang with the inner wall of shearing section is the laminating setting, the shearing blade of shearing pole with the rotating blade of dwang is parallel distribution from top to bottom.
As a preferred embodiment, the top surface of dispersion impeller is the setting of toper cambered surface, rotating vane of dwang bottom with the cambered surface of dispersion impeller's contact surface is the looks adaptation.
As a preferred embodiment, the jacking and extruding mechanism comprises two symmetrically distributed turntables, the two turntables are coaxially fixed with two ends of the crushing roller far away from the crushing motor respectively, a rotating column is fixed on the outer surface of each turntable, two symmetrically distributed guide sleeves are fixed on the outer wall of the extruding section, ejector rods penetrate through the guide sleeves in a sliding manner, a limiting ring fixed on the bottom surface of each ejector rod is arranged on the periphery of each rotating column, four symmetrically distributed jacking grooves are formed in the side walls of two sides of the extruding section, connecting rods fixed on the inner surface of each ejector rod penetrate through the jacking grooves in a sliding manner, an extruding plate is fixed between the two connecting rods, and the extruding plate is connected with the inner wall of the extruding section in a sliding manner.
In a preferred embodiment, the extrusion section is located below the dispersion plate and is in a screen shape, and the extrusion plates are located on two sides of the screen shape and are arranged in a reversed splayed shape in vertical section.
As a preferred embodiment, the inner walls of the other two jacking grooves are provided with L-shaped rods in a sliding penetrating manner, and two ends of each L-shaped rod are respectively fixed with the extrusion plate and the connecting rod.
Compared with the prior art, the method for manufacturing the silicate magnesium slag cement by using the magnesium slag at least comprises the following beneficial effects:
(1) Lime raw materials, clay raw materials, gypsum slow setting raw materials and magnesium sediment correction raw materials are sent into to handling the incasement through the feeder hopper respectively from respective feed bin, through shearing breakage, jacking extrusion breakage and rotation breakage form crushing treatment many times, thereby make four kinds of raw materials form the portland cement raw meal that contains the magnesium sediment in handling the incasement through abundant broken mixing, thereby guaranteed quality and homogeneity that contains magnesium sediment cement raw meal greatly, thereby improve follow-up portland cement's that contains the magnesium sediment burning quality, through add appropriate amount magnesium sediment in portland cement, both can effectively reduce the proportion of accounting for the lime raw materials, can carry out reasonable interpolation to the magnesium sediment again, successfully carry out make full use of to the magnesium sediment, energy-conservation and environmental protection.
(2) Through the drive of the shearing motor, the shearing rod and the rotating rod rotate along opposite directions, so that four raw materials are mixed more uniformly in a shearing section, and through the reverse rotation of the shearing rod and the rotating rod, the effect of shearing and crushing the raw materials is further improved, and through the drive of the crushing motor, the repeated extrusion crushing treatment is realized through the up-and-down reciprocating motion of the extrusion plate, and the two crushing rollers rotate and crush the raw materials again, so that the triple crushing treatment of the four raw materials is realized, the spiral discharging treatment is performed on the raw materials through the auger blades, the mixing preparation process steps of the portland cement raw materials containing magnesium slag are simplified, and the triple crushing is performed on the raw materials, so that the homogeneity of the portland cement raw materials containing magnesium slag can be effectively improved, the subsequent sintering treatment quality of the magnesium slag through a kiln is improved, the magnesium slag is reasonably added, the content of the lime raw materials is reduced, the magnesium slag waste is changed into valuable, the environmental protection and energy conservation are realized, and the preparation process is simple and convenient.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic view of the overall structure of the green stock treatment of the present invention;
FIG. 3 is a schematic view of the structure of the crushing motor of the present invention;
FIG. 4 is a schematic view of a portion of the crushing roller of the present invention;
FIG. 5 is an enlarged view of area A of FIG. 4 according to the present invention;
fig. 6 is an enlarged structural diagram of the area B in fig. 4 according to the present invention.
In the figure: 1. a treatment tank; 101. cutting into sections; 102. extruding section; 103. a crushing section; 104. a spiral feeding section; 2. a hopper; 3. a crushing roller; 4. a reversing gear; 5. a crushing motor; 6. a screw feeding mechanism; 601. a rotating shaft; 602. a screw blade; 603. a discharge port; 604. a drive pulley; 605. a drive belt; 7. a dispersion tray; 8. a shearing and crushing mechanism; 801. a shear bar; 802. a shear motor; 803. a column; 804. a limiting disc; 805. a toothed ring; 806. rotating the rod; 807. a driving gear; 808. a driven gear; 9. a jacking and extruding mechanism; 901. a turntable; 902. rotating the column; 903. a guide sleeve; 904. a top rod; 905. a limiting ring; 906. jacking a tank; 907. a connecting rod; 908. a compression plate; 10. an L-shaped rod.
Detailed Description
The present invention will be further described with reference to the following examples.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions of the embodiments of the present invention will be described below with reference to the drawings of the embodiments of the present invention, it is obvious that the described embodiments are some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work based on the described embodiments of the present invention belong to the protection scope of the present invention.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1-6, the present invention provides a method for manufacturing magnesium silicate slag cement by using magnesium slag, the method for manufacturing magnesium silicate slag cement is based on a manufacturing device, and the method for manufacturing magnesium silicate slag cement comprises the following steps:
s1, selecting a material with the mass ratio of 12:3:1:4, respectively feeding the calcareous raw material, the clay raw material, the gypsum slow-setting raw material and the magnesium slag correction raw material into a shearing section 101 of the treatment box 1 through four feed hoppers communicated with the top surface of the treatment box 1 to form primary mixing and shearing and crushing treatment on the raw materials;
s2, dispersing the sheared and crushed raw materials into an extrusion section 102 of the treatment box 1, and repeatedly jacking, extruding and crushing the raw materials to form extrusion crushing treatment on the raw materials;
s3, dropping the extruded and crushed raw materials into a crushing section 103 to perform rotary crushing treatment to form re-crushing treatment on the raw materials, then dropping the crushed and refined raw materials into a spiral material feeding section 104 to perform spiral conveying treatment to form spiral conveying discharge of the raw materials, and forming portland cement raw materials containing magnesium slag correction raw materials;
and S4, feeding the portland cement raw material containing the magnesium slag correction raw material into a cement kiln for calcination, and collecting and processing the calcined portland cement raw material to finish the preparation of the portland cement clinker containing the magnesium slag correction raw material.
Lime raw materials, clay raw materials, gypsum slow setting raw materials and magnesium sediment correction raw materials are sent into to handling the case 1 through the feeder hopper respectively from respective feed bin, through shearing breakage, jacking extrusion breakage and rotation breakage form crushing treatment many times, thereby make four kinds of raw materials form the portland cement raw meal that contains the magnesium sediment in handling case 1 after abundant broken mixing, thereby quality and homogeneity that contain magnesium sediment cement raw meal have been ensured greatly, thereby improve follow-up portland cement's that contains the magnesium sediment quality of firing, through add appropriate amount magnesium sediment in portland cement, both can effectively reduce the proportion of accounting for lime raw materials, can carry out reasonable interpolation to the magnesium sediment again, successfully carry out make full use of to the magnesium sediment, energy-conservation and environmental protection.
Further as shown in fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, it is worth specifically explaining that the preparation apparatus includes a processing box 1, the processing box 1 includes a shearing section 101, an extrusion section 102, a crushing section 103 and a spiral feeding section 104 which are sequentially communicated from top to bottom, four hoppers 2 are uniformly distributed on the top surface of the shearing section 101, the inner wall of the crushing section 103 is rotatably connected with two symmetrically distributed crushing rollers 3, the outer ends of the two crushing rollers 3 are respectively and coaxially fixed with reversing gears 4, the two reversing gears 4 are meshed and connected, the outer wall of the crushing section 103 is provided with a crushing motor 5 which is coaxially connected with one of the crushing rollers 3, the inner wall of the spiral feeding section 104 is provided with a spiral feeding mechanism 6 which is matched with the crushing rollers 3, the inner wall of the bottom of the shearing section 101 is fixed with a dispersion disc 7, the inside of the shearing section 101 is provided with a shearing and crushing mechanism 8 which is matched with the top surface of the dispersion disc 7, and the inside of the extrusion section 102 is provided with an extrusion mechanism 9 which is matched with the crushing rollers 3 and the dispersion disc 7.
Further as shown in fig. 3 and 4, it is worth specifically describing that the spiral feeding mechanism 6 includes a rotating shaft 601 rotatably connected to the inner wall of the spiral feeding section 104, an auger blade 602 is tightly sleeved on the outer surface of the rotating shaft 601, a discharge port 603 opened on the inner wall of the spiral feeding section 104 is disposed on one side of the auger blade 602, driving pulleys 604 are coaxially fixed to the outer end surfaces of the rotating shaft 601 and one of the crushing rollers 3, and driving belts 605 are disposed on the outer surfaces of the two driving pulleys 604.
Further as shown in fig. 4 and 5, it is worth specifically describing that the shearing and crushing mechanism 8 includes a shearing rod 801 rotatably connected to the top inner wall of the shearing section 101 and the top surface of the dispersion disc 7, a shearing motor 802 coaxially connected to the shearing rod 801 is installed on the top surface of the shearing section 101, four upright columns 803 symmetrically distributed are fixed to the top inner wall of the shearing section 101, a limiting disc 804 jointly fixed to the outer surfaces of the four upright columns 803 is disposed on the periphery of the shearing rod 801, a toothed ring 805 is rotatably connected to the opposite surface of the limiting disc 804 to the shearing section 101, a plurality of rotating rods 806 uniformly distributed are fixed to the bottom surface of the toothed ring 805, a driving gear 807 coaxially fixed to the shearing rod 801 is disposed on the top surface of the limiting disc 804, a driven gear 808 is rotatably connected to the top surface of the shearing section 101, and two sides of the driven gear 808 are respectively engaged with the driving gear 807 and the toothed ring 805.
As further shown in fig. 4, it should be specifically noted that the outer surface of the rotating rod 806 is in contact with the inner wall of the cutting segment 101, and the cutting blades of the cutting rod 801 are vertically parallel to the rotating blades of the rotating rod 806.
As further shown in fig. 4, it should be specifically described that the top surface of the dispersion board 7 is arranged in a conical arc surface, and the contact surface between the rotating blade at the bottom of the rotating rod 806 and the dispersion board 7 is a matched arc surface.
The scheme has the following working processes: the limestone raw materials, the clay raw materials, the gypsum retarding raw materials and the magnesium slag correcting raw materials enter the treatment box 1 through respective feed hoppers respectively, at the moment, the cutting rod 801 and the driving gear 807 synchronously rotate through the driving of the cutting motor 802, and the tooth-shaped ring 805 and the driving gear 807 rotate along opposite directions through the meshing transmission of the driving gear 807, the driven gear 808 and the tooth-shaped ring 805, so that the tooth-shaped ring 805 and the driving gear 807 rotate along opposite directions, the rotation of the rotating rod 806 and the cutting rod 801 along opposite directions in the cutting section 101 of the treatment box 1 is realized, the effect of cutting and crushing the four raw materials on the top surface of the dispersion disc 7 is greatly improved, the primary mixing and cutting crushing of the four raw materials are realized, and the quality of magnesium slag-containing portland cement raw materials is improved;
the sheared and crushed raw materials drop into the extrusion section 102 through the rotation of the rotating rod 806 and the conical cambered surface effect of the dispersion disc 7, the raw materials are subjected to reciprocating extrusion crushing treatment through the driving effect of the crushing motor 5 and through the meshing transmission of the two reversing gears 4, so that the two crushing rollers 3 downwards rotate along the center, the jacking extrusion mechanism 9 is driven to carry out reciprocating extrusion crushing treatment on the raw materials, the raw materials crushed again drop into the centers of the two crushing rollers 3 to carry out rotary crushing treatment, so that triple crushing of the raw materials is realized, and the raw materials subjected to rotary crushing are subjected to spiral discharging treatment through the spiral rotation of the auger blades 602 through the transmission effect of the transmission belt wheels 604 and the transmission belt 605, so that the raw materials are subjected to spiral discharging treatment from the bottom surface of the spiral feeding section 104 of the treatment box 1, and accordingly, crushing and mixing treatment of the portland cement raw materials containing magnesium slag are formed.
According to the working process, the following steps are known: through the drive of shearing motor 802, make shearing pole 801 and dwang 806 rotate along opposite direction, thereby make four kinds of raw materials mix more evenly in shearing section 101, and through shearing pole 801 and dwang 806 antiport, further improve the effect of shearing the breakage to the raw materials, and through the drive of broken motor 5, carry out the re-rotation breakage to the raw materials after carrying out the repeated extrusion crushing processing to it, thereby realize the triple crushing processing to four kinds of raw materials, and carry out spiral ejection of compact processing to it through auger blade 602, the mixed preparation technology step of portland cement raw meal containing magnesium sediment has been simplified, and carry out triple crushing to it and can effectively improve the homogeneity of portland cement raw meal containing magnesium sediment, thereby improve the quality of follow-up sintering processing through the cement kiln, rationally add the magnesium sediment, and reduce the content of lime matter raw materials, change waste into valuables magnesium sediment waste, environmental protection and energy saving, and its preparation simple process is convenient.
As further shown in fig. 2, fig. 3 and fig. 6, it should be specifically described that the jacking extrusion mechanism 9 includes two symmetrically distributed rotating discs 901, the two rotating discs 901 are coaxially fixed with two ends of the crushing roller 3 far away from the crushing motor 5, respectively, a rotating column 902 is fixed on an outer surface of the rotating disc 901, two symmetrically distributed guide sleeves 903 are fixed on an outer wall of the extrusion section 102, push rods 904 penetrate through the two guide sleeves 903 in a sliding manner, a limiting ring 905 fixed with a bottom surface of the push rod 902 is disposed on a periphery of the rotating column 902, four symmetrically distributed jacking grooves 906 are disposed on two side walls of the extrusion section 102, a connecting rod 907 fixed with an inner surface of the push rod 904 penetrates through each of the two jacking grooves 906 in a sliding manner, an extrusion plate 908 is fixed between the two connecting rods 907, the extrusion plate 908 is slidably connected with an inner wall of the extrusion section 102, while the crushing roller 3 rotates, the rotating discs 901 at two ends synchronously, the rotating by the rotating column 902 and the limiting ring 905, the push rod 904 rotates along with the rotating of the rotating discs 901, thereby realizing the up-and down reciprocating motion of the push rod 904, thereby further extruding dispersion plate 904 and extruding the dispersion material to improve the reciprocating motion of the dispersion plate 904, and further crushing dispersion plate 908.
Further as shown in fig. 4, it is worth specifically explaining that the extruding section 102 is located below the dispersion disc 7 and is in a screen shape, the extruding plate 908 is located at two sides of the screen shape and is in an inverted splayed shape, and the extruding plate 908 is in a shape, so that the raw materials crushed by shearing are better concentrated and distributed at the center of the extruding plate 908, and the raw materials are conveniently contacted with the bottom surface of the dispersion disc 7 to be crushed by extruding, thereby improving the crushing effect of the raw materials.
As further shown in fig. 2, 3 and 6, it should be specifically described that the inner walls of the other two jacking grooves 906 are respectively penetrated with an L-shaped rod 10 in a sliding manner, two ends of the L-shaped rod 10 are respectively fixed with the pressing plate 908 and the connecting rod 907, and the L-shaped rod 10 is arranged so that the pressing plate 908 is limited by the connecting rod 907 and the L-shaped rod 10 when the top rod 904 reciprocates up and down, thereby improving the stability of the pressing plate 908 when the pressing plate 908 performs the up-and-down pressing movement.
To sum up: through the drive of shearing motor 802, make shearing pole 801 and dwang 806 rotate along opposite direction, thereby make four kinds of raw materials mix more evenly in shearing section 101, and through shearing pole 801 and dwang 806 antiport, further improve the effect of carrying out the shearing breakage to the raw materials, and through the drive of crushing motor 5, realize through the up-and-down reciprocating motion of stripper plate 908 that repeated extrusion crushing handles and two crushing rollers 3 carry out the rotation breakage once more to it, thereby realize the triple crushing processing to four kinds of raw materials, and carry out spiral discharge processing to it through auger blade 602, simplified the mixed preparation technology step to the portland cement raw meal that contains the magnesium sediment, and carry out triple crushing to it and can effectively improve the homogeneity of portland cement raw meal that contains the magnesium sediment, thereby improve the quality of follow-up sintering treatment through the cement kiln.
The shearing motor 802 and the crushing motor 5 can be purchased in the market, and the shearing motor 802 and the crushing motor 5 are provided with power supplies, which belong to the mature technology in the field and are fully disclosed, so repeated description is omitted in the specification.
Unless defined otherwise, technical terms or scientific terms used herein should be commonly understood by one of ordinary skill in the art, and the terms "including" or "comprising" and the like as used herein mean that elements or items before the term are included in the elements or items listed after the term and their equivalents, but do not exclude other elements or items, and the terms "connected" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect, "upper", "lower", "left", "right", and the like, which are used to indicate relative positional relationships, and may also change accordingly when the absolute position of the described object changes.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The method for preparing the magnesium silicate slag cement by using the magnesium slag is characterized in that a preparation device is used as a basis, and the preparation method of the magnesium silicate slag cement comprises the following steps:
s1, selecting a material with a mass ratio of 12:3:1:4, respectively feeding the calcareous raw material, the clay raw material, the gypsum retarding raw material and the magnesium slag correcting raw material into a shearing section (101) of the processing box (1) through four feed hoppers communicated with the top surface of the processing box (1) to form primary mixing and shearing and crushing treatment on the raw materials;
s2, dispersing the sheared and crushed raw materials into an extrusion section (102) of the treatment box (1), and repeatedly jacking, extruding and crushing the raw materials to form extrusion crushing treatment on the raw materials;
s3, dropping the extruded and crushed raw materials into a crushing section (103) for rotary crushing treatment to form re-crushing treatment on the raw materials, and then dropping the crushed and refined raw materials into a spiral material feeding section (104) for spiral conveying treatment to form spiral conveying discharge on the raw materials to form portland cement raw materials containing magnesium slag correction raw materials;
and S4, feeding the portland cement raw material containing the magnesium slag correction raw material into a cement kiln for calcination, and collecting and processing the calcined portland cement raw material to finish the preparation of the portland cement clinker containing the magnesium slag correction raw material.
2. The method for manufacturing the magnesium silicate slag cement by using the magnesium slag as claimed in claim 1, wherein the method comprises the following steps: preparation facilities is including handling case (1), handle case (1) including shearing section (101), extrusion section (102), crushing section (103) and spiral feeding section (104), four that from top to bottom communicate the setting in proper order hopper (2) are evenly distributed in the top surface of shearing section (101), the inner wall of crushing section (103) rotates and is connected with two crushing rollers (3) that are the symmetric distribution, two the outer end of crushing roller (3) is coaxial fixed with reversing gear (4) respectively, two reversing gear (4) meshing is connected, the outer wall of crushing section (103) is provided with one of them crushing motor (5) of crushing roller (3) coaxial coupling, the inner wall of spiral feeding section (104) is provided with spiral feeding mechanism (6) with crushing roller (3) matched with, the bottom inner wall of shearing section (101) is fixed with dispersion impeller (7), the inside of shearing section (101) be provided with dispersion impeller (7) top surface matched with shearing mechanism (8), the inside of extrusion section (102) with crushing roller (3) and extrusion impeller (9) matched with.
3. The method for manufacturing the magnesium silicate slag cement by using the magnesium slag as claimed in claim 2, wherein the method comprises the following steps: spiral feeding mechanism (6) include with spiral feeding section (104) inner wall rotates pivot (601) of connecting, auger blade (602) have been cup jointed to the surface fastening of pivot (601), one side of auger blade (602) is provided with discharge gate (603) of seting up in spiral feeding section (104) inner wall, pivot (601) and one of them the outer end surface of crushing roller (3) is coaxial fixed with driving pulley (604), two respectively the surface of driving pulley (604) is provided with driving belt (605).
4. The method for manufacturing the magnesium silicate slag cement by using the magnesium slag as claimed in claim 2, wherein the method comprises the following steps: cut broken mechanism (8) include with cut section (101) top inner wall and dispersion impeller (7) top surface and rotate shearing rod (801) of connecting, the top surface of cutting section (101) install with shearing rod (801) coaxial coupling's shearing motor (802), the top inner wall of cutting section (101) is fixed with four stand (803) that are the symmetric distribution, the periphery of shearing rod (801) be provided with four the common spacing dish (804) of fixing of the surface of stand (803), spacing dish (804) with the opposite face of cutting section (101) is rotated and is connected with profile of tooth circle (805), the bottom surface of profile of tooth circle (805) is fixed with a plurality of dwang (806) that are evenly distributed, the top surface of spacing dish (804) is provided with driving gear (807) with the coaxial fixed of shearing rod (801), the top surface of cutting section (101) is rotated and is connected with driven gear (808), the both sides of driven gear (808) respectively with driving gear (807) with profile of tooth circle (805) mesh is connected.
5. The method for manufacturing the magnesium silicate slag cement by using the magnesium slag as claimed in claim 4, wherein the method comprises the following steps: the surface of dwang (806) with the inner wall of shearing section (101) is the laminating setting, the shearing blade of shearing pole (801) with the rotating blade of dwang (806) is parallel distribution from top to bottom.
6. The method for manufacturing the magnesium silicate slag cement by using the magnesium slag as claimed in claim 5, wherein the method comprises the following steps: the top surface of dispersion impeller (7) is the setting of toper cambered surface, the rotating vane of dwang (806) bottom with the cambered surface of the contact surface of dispersion impeller (7) for the looks adaptation.
7. The method for manufacturing the magnesium silicate slag cement by using the magnesium slag as claimed in claim 2, wherein the method comprises the following steps: the jacking and extruding mechanism (9) comprises two rotating discs (901) which are symmetrically distributed, the two rotating discs (901) are coaxially fixed with two ends of the crushing roller (3) far away from the crushing motor (5) respectively, a rotating column (902) is fixed on the outer surface of each rotating disc (901), two guide sleeves (903) which are symmetrically distributed are fixed on the outer wall of the extruding section (102), ejector rods (904) penetrate through the two guide sleeves (903) in a sliding mode, a limiting ring (905) fixed with the bottom surface of each ejector rod (904) is arranged on the periphery of each rotating column (902), four jacking grooves (906) which are symmetrically distributed are formed in the side walls of two sides of the extruding section (102), connecting rods (907) fixed with the inner surfaces of the ejector rods (904) penetrate through the two jacking grooves (906) in a sliding mode, an extruding plate (908) is fixed between the two connecting rods (907), and the extruding plate (908) is connected with the inner wall of the extruding section (102) in a sliding mode.
8. The method for manufacturing magnesium silicate slag cement by using magnesium slag according to claim 7, wherein the method comprises the following steps: the extrusion section (102) is located below the dispersion disc (7) and is in a screen mesh shape, and the extrusion plate (908) is located on the vertical sections on two sides of the screen mesh shape and is in inverted splayed arrangement.
9. The method for manufacturing magnesium silicate slag cement by using the magnesium slag as claimed in claim 7, which is characterized in that: the inner walls of the other two jacking grooves (906) are provided with L-shaped rods (10) in a sliding penetrating mode, and two ends of each L-shaped rod (10) are fixed with the extrusion plate (908) and the connecting rod (907) respectively.
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