CN115532357B - 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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- CN115532357B CN115532357B CN202211050823.6A CN202211050823A CN115532357B CN 115532357 B CN115532357 B CN 115532357B CN 202211050823 A CN202211050823 A CN 202211050823A CN 115532357 B CN115532357 B CN 115532357B
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- shearing
- magnesium slag
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 74
- 239000011777 magnesium Substances 0.000 title claims abstract description 74
- 239000002893 slag Substances 0.000 title claims abstract description 68
- 239000004568 cement Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 118
- 238000010008 shearing Methods 0.000 claims abstract description 77
- 238000011282 treatment Methods 0.000 claims abstract description 39
- 238000002360 preparation method Methods 0.000 claims abstract description 22
- 239000003469 silicate cement Substances 0.000 claims abstract description 20
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 11
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 11
- 239000004571 lime Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000004927 clay Substances 0.000 claims abstract description 7
- 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 7
- 238000001125 extrusion Methods 0.000 claims description 52
- 238000012545 processing Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 22
- 239000006185 dispersion Substances 0.000 claims description 16
- 239000011398 Portland cement Substances 0.000 claims description 15
- 238000012937 correction Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000005245 sintering Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000013049 sediment Substances 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
- 235000019738 Limestone Nutrition 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002829 reductive effect 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
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 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
Classifications
-
- 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
Landscapes
- 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 manufacturing silicate magnesium slag cement by using magnesium slag, which belongs to the technical field of silicate cement preparation, and aims at solving the problems of poor convenience and high efficiency when magnesium slag raw materials are added into silicate cement for preparation, wherein the preparation method of silicate magnesium slag cement is based on a preparation device, and comprises the following steps of: s1, selecting a mass ratio of 12:3:1:4, feeding the lime raw material, the clay raw material, the gypsum retarding raw material and the magnesium slag correcting raw material into a shearing section of a treatment box through four feeding hoppers communicated with the top surface of the treatment box respectively to form primary mixing and shearing crushing treatment of the raw materials; the invention simplifies the mixing preparation process steps of the silicate cement raw material containing magnesium slag by triple crushing treatment of the four raw materials, and can effectively improve the homogeneity of the silicate cement raw material containing magnesium slag by triple crushing, thereby improving the quality of the subsequent sintering treatment by a cement kiln.
Description
Technical Field
The invention belongs to the technical field of silicate cement preparation, and particularly relates to a method for manufacturing silicate magnesium slag cement by using magnesium slag.
Background
The iron correction raw materials used in raw materials of silicate clinker in the domestic building material market are iron powder or sulfuric acid residues, raw materials prepared by the two correction raw materials are poor in combustibility, raw material cost is high, the later strength of the clinker is generally 53-56 Mpa, and the clinker is difficult to greatly improve, so that the doping amount of mixed materials (especially industrial waste residues) in the prepared general silicate cement is limited, the cement produced by the clinker has poor adaptability to lignin and naphthalene water reducers, and the cement has poor sulfate erosion resistance, drying shrinkage resistance and alkali aggregate expansion inhibition performance; the other raw material limestone also faces resource shortage and cost increase, and the trend is to actively search for substitutes or partial substitutes of limestone.
In recent years, with the rapid development of the magnesium smelting industry in China, the annual output of original magnesium and magnesium alloy is increased year by year, the discharged magnesium slag is more and more, the MgO content in the magnesium slag is between 6% and 8%, compared with the MgO content in limestone, how to effectively and reasonably treat, develop and utilize the magnesium slag is particularly important, so that the purposes of saving energy and resources, changing waste into valuables and changing harm are achieved, and the rapid and efficient mixing preparation of the magnesium slag with silicate cement raw material is also particularly important when the magnesium slag is reasonably utilized.
Therefore, a method for manufacturing silicate magnesium slag cement by using magnesium slag is needed, and the problems of poor convenience and high efficiency in the preparation of adding magnesium slag raw materials into silicate cement in the prior art are solved.
Disclosure of Invention
The invention aims to provide a method for manufacturing silicate magnesium slag cement by using magnesium slag, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a method for manufacturing silicate magnesium slag cement by using magnesium slag, wherein the preparation method of the silicate magnesium slag cement is based on a preparation device, and comprises the following steps of:
S1, selecting a mass ratio of 12:3:1:4, feeding the lime raw material, the clay raw material, the gypsum retarding raw material and the magnesium slag correcting raw material into a shearing section of a treatment box through four feeding hoppers communicated with the top surface of the treatment box respectively to form primary mixing and shearing crushing treatment of the raw materials;
S2, dispersing the sheared and crushed raw materials into an extrusion section of a processing box, repeatedly jacking, extruding and crushing the raw materials to form extrusion and crushing processing of the raw materials;
S3, the extruded and crushed raw materials fall into a crushing section for rotary crushing treatment to form re-crushing treatment of the raw materials, and then the crushed and refined raw materials fall into a spiral feeding section for spiral conveying treatment to form spiral conveying discharge of the raw materials, so that the Portland cement raw materials containing the magnesium slag correction raw materials are formed;
S4, delivering the Portland cement raw material containing the magnesium slag correction raw material into a cement kiln for calcination, and collecting and processing after the calcination is completed to complete the preparation of the Portland cement clinker containing the magnesium slag correction raw material.
In the scheme, it is to be noted that, preparation facilities includes the processing case, the processing case is including from top to bottom the shearing section, extrusion section, crushing section and the spiral feeding section that communicate in proper order and set up, four the feeder hopper is evenly distributed in the top surface of shearing section, the inner wall rotation of crushing section is connected with two and is the crushing roller of symmetric distribution, two the outer end of crushing roller is coaxial respectively fixed with the switching-over gear, two the switching-over gear meshing is connected, 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 be provided with crushing roller matched with spiral feeding mechanism, the bottom inner wall of shearing section be fixed with the dispersion disk, the inside of shearing section be provided with dispersion disk top surface matched with shear crushing mechanism, the inside of extrusion section be provided with crushing roller and dispersion disk matched with jacking extrusion mechanism.
It is further worth to say that screw feeding mechanism include with screw feeding section inner wall rotates the pivot of being connected, the surface fastening of pivot has cup jointed auger blade, one side of auger blade is provided with and sets up in the discharge gate of screw feeding section inner wall, the pivot with one of them the outer end surface of crushing roller is coaxial fixed with the driving pulley respectively, two the surface of driving pulley is provided with driving belt.
It is still further to be noted that, shear crushing mechanism include with shear section top inner wall and dispersion impeller top surface rotate the shear lever of being connected, the top surface of shear section install with shear lever coaxial coupling's shear motor, the top inner wall of shear section is fixed with four and is symmetrical distribution's stand, the periphery of shear lever be provided with four the surface co-fixation's of stand spacing dish, spacing dish with the opposite face rotation of shear section is connected with the profile of tooth circle, the bottom surface of profile of tooth circle is fixed with a plurality of dwells that are evenly distributed, the top surface of spacing dish be provided with shear lever coaxial fixed's driving gear, the top surface rotation of shear section is connected with driven gear, driven gear's both sides respectively with driving gear with the profile of tooth circle meshing is connected.
As a preferable implementation mode, the outer surface of the rotating rod is in fit arrangement with the inner wall of the shearing section, and shearing blades of the shearing rod and the rotating blades of the rotating rod are distributed in an up-down parallel mode.
As a preferable implementation mode, the top surface of the dispersion plate is in a conical cambered surface, and the contact surface of the rotating blades at the bottom of the rotating rod and the dispersion plate is an adaptive cambered surface.
As a preferred implementation mode, jacking extrusion mechanism includes two carousel that are symmetrical distribution, two the carousel respectively with keep away from broken motor the both ends coaxial fixation of crushing roller, the surface mounting of carousel has the spliced pole, the outer wall of extrusion section is fixed with two and is symmetrical distribution's uide bushing, two all slide in the uide bushing and run through there is the ejector pin, the periphery of spliced pole be provided with the spacing ring that the ejector pin bottom surface is fixed, four jacking grooves that are symmetrical distribution have been seted up to the both sides lateral wall of extrusion section, two wherein all slide in the jacking groove run through with ejector pin internal surface fixed's connecting rod, two be fixed with the stripper plate between the connecting rod, the stripper plate with the inner wall sliding connection of extrusion section.
As 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 inverted splayed vertical sections.
As a preferable implementation mode, the inner walls of the other two jacking grooves are respectively penetrated by an L-shaped rod in a sliding way, and two ends of the L-shaped rod are respectively fixed with the extrusion plate and the connecting rod.
Compared with the prior art, the method for manufacturing silicate magnesium slag cement by using magnesium slag provided by the invention at least comprises the following beneficial effects:
(1) Lime raw materials, clay raw materials, gypsum retarding raw materials and magnesium slag correction raw materials are respectively sent into a processing box from respective feed bins through a feed hopper, and are subjected to shearing crushing, jacking extrusion crushing and rotary crushing to form multiple crushing treatments, so that four raw materials are fully crushed and mixed in the processing box to form magnesium slag-containing silicate cement raw materials, the quality and the homogeneity of the magnesium slag-containing cement raw materials are greatly ensured, the subsequent firing quality of the magnesium slag-containing silicate cement is improved, the occupation ratio of the lime raw materials can be effectively reduced, the magnesium slag can be reasonably added, and the magnesium slag can be fully utilized, so that the energy is saved, and the environment is protected.
(2) Through the drive of shearing motor for shearing bar and dwang rotate along opposite direction, thereby make four kinds of raw materials mix more evenly in the shearing section, and through shearing bar and dwang reverse rotation, further improve the effect of shearing the broken raw materials, and through the drive of crushing motor, realize repeatedly extrusion crushing processing and two crushing rollers rotate the broken once more through the reciprocating motion about the stripper plate, thereby realize triple crushing processing to four kinds of raw materials, and carry out spiral ejection of compact processing to it through auger blade, the mixed preparation process step to the silicate cement raw material that contains magnesium sediment has been simplified, and carry out triple crushing to it can effectively improve the homogeneity of the silicate cement raw material that contains magnesium sediment, thereby improve the quality of carrying out sintering treatment through the cement kiln in succession, carry out reasonable interpolation to the magnesium sediment, and reduce the content of lime raw material, waste material changing waste into valuables to magnesium sediment, environmental protection and energy saving, and its preparation technology is simple and convenient.
Drawings
FIG. 1 is a schematic flow chart of the method 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 partial structure of a crushing roller according to the present invention;
FIG. 5 is an enlarged schematic view of the area A of FIG. 4 according to the present invention;
Fig. 6 is an enlarged view of the area B of fig. 4 according to the present invention.
In the figure: 1. a treatment box; 101. a shearing section; 102. an extrusion section; 103. a crushing section; 104. a spiral feeding section; 2. a feed hopper; 3. a crushing roller; 4. a reversing gear; 5. a crushing motor; 6. a spiral feeding mechanism; 601. a rotating shaft; 602. auger blades; 603. a discharge port; 604. a transmission belt wheel; 605. a drive belt; 7. a dispersion plate; 8. a shearing and crushing mechanism; 801. a shear bar; 802. a shearing motor; 803. a column; 804. a limiting disc; 805. a toothed ring; 806. a rotating lever; 807. a drive gear; 808. a driven gear; 9. a jacking extrusion mechanism; 901. a turntable; 902. rotating the column; 903. a guide sleeve; 904. a push rod; 905. a limiting ring; 906. a jacking groove; 907. a connecting rod; 908. an extrusion plate; 10. an L-shaped rod.
Detailed Description
The invention is further described below with reference to examples.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are some, but not all, embodiments of the present invention, and all other embodiments obtained by persons of ordinary skill in the art without inventive labor based on the described embodiments of the present invention are included in the scope of protection of the present invention.
The following examples are illustrative of the present invention but are not intended to limit the scope of the invention. The conditions in the examples can be further adjusted according to specific conditions, and simple modifications of the method of the invention under the premise of the conception of the invention are all within the scope of the invention as claimed.
Referring to fig. 1 to 6, the present invention provides a method for manufacturing portland cement by using magnesium slag, wherein the method for manufacturing portland cement is based on a manufacturing device, and comprises the following steps:
S1, selecting a mass ratio of 12:3:1:4, respectively feeding the lime 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 treatment box 1 through four feeding hoppers communicated with the top surface of the treatment box 1 to form primary mixing and shearing crushing treatment of the raw materials;
s2, dispersing the sheared and crushed raw materials into an extrusion section 102 of the processing box 1, repeatedly jacking, extruding and crushing the raw materials to form extrusion and crushing processing of the raw materials;
S3, the extruded and crushed raw materials fall into a crushing section 103 to be subjected to rotary crushing treatment, so that re-crushing treatment of the raw materials is formed, and then the crushed and refined raw materials fall into a spiral feeding section 104 to be subjected to spiral conveying treatment, so that spiral conveying discharge of the raw materials is formed, and silicate cement raw materials containing magnesium slag corrected raw materials are formed;
S4, delivering the Portland cement raw material containing the magnesium slag correction raw material into a cement kiln for calcination, and collecting and processing after the calcination is completed to complete the preparation of the Portland cement clinker containing the magnesium slag correction raw material.
Lime raw materials, clay raw materials, gypsum retarding raw materials and magnesium slag correction raw materials are respectively sent into the processing box 1 from respective feed bins through feed hoppers, and are subjected to shearing crushing, jacking extrusion crushing and rotary crushing to form multiple crushing treatments, so that four raw materials are fully crushed and mixed in the processing box 1 to form magnesium slag-containing silicate cement raw materials, the quality and the homogeneity of the magnesium slag-containing cement raw materials are greatly ensured, the subsequent firing quality of magnesium slag-containing silicate cement is improved, the occupation ratio of the lime raw materials can be effectively reduced, the magnesium slag can be reasonably added, and the magnesium slag can be fully utilized, so that the energy is saved and the environment is protected.
Further, as shown in fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, it is worth specifically explaining that the preparation device 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 feeding hoppers 2 are uniformly distributed on the top surface of the shearing section 101, two symmetrically distributed crushing rollers 3 are rotationally connected to the inner wall of the crushing section 103, reversing gears 4 are coaxially fixed to the outer ends of the two crushing rollers 3 respectively, the two reversing gears 4 are in meshed connection, a crushing motor 5 coaxially connected with one of the crushing rollers 3 is arranged on the outer wall of the crushing section 103, a spiral feeding mechanism 6 matched with the crushing roller 3 is arranged on the inner wall of the bottom of the shearing section 101, a dispersing disc 7 is fixed to the inner wall of the bottom of the shearing section 101, a jacking extrusion mechanism 9 matched with the top surface of the dispersing disc 7 is arranged inside the extrusion section 102, and the crushing rollers 3 and the dispersing disc 7 are matched with jacking extrusion mechanism 9.
Further, as shown in fig. 3 and fig. 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 fastened and sleeved on the outer surface of the rotating shaft 601, a discharge port 603 formed in the inner wall of the spiral feeding section 104 is provided on one side of the auger blade 602, driving pulleys 604 are coaxially fixed on the outer end surfaces of the rotating shaft 601 and one of the crushing rollers 3, and driving belts 605 are provided 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 rotationally connected to the inner wall of the top of the shearing section 101 and the top surface of the dispersion plate 7, a shearing motor 802 coaxially connected to the shearing rod 801 is installed on the top surface of the shearing section 101, four symmetrically distributed upright posts 803 are fixed to the inner wall of the top of the shearing section 101, a limit plate 804 jointly fixed to the outer surfaces of the four upright posts 803 is arranged on the periphery of the shearing rod 801, a toothed ring 805 is rotationally connected to the opposite surface of the limit plate 804 and the shearing section 101, a plurality of uniformly distributed rotating rods 806 are fixed to the bottom surface of the toothed ring 805, a driving gear 807 coaxially fixed to the shearing rod 801 is arranged on the top surface of the limit plate 804, a driven gear 808 is rotationally 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.
Further, as shown in fig. 4, it is worth specifically describing that the outer surface of the rotating rod 806 is in fit with the inner wall of the shearing section 101, and the shearing blades of the shearing rod 801 are vertically parallel to the rotating blades of the rotating rod 806.
Further, as shown in fig. 4, it is worth specifically describing that the top surface of the dispersion plate 7 is provided with a conical cambered surface, and the contact surface between the rotating blades at the bottom of the rotating rod 806 and the dispersion plate 7 is an adaptive cambered surface.
The scheme comprises the following working processes: lime raw materials, clay raw materials, gypsum retarding raw materials and magnesium slag correction raw materials enter the processing box 1 through respective feeding hoppers, at the moment, the shearing rod 801 and the driving gear 807 synchronously rotate through the driving of the shearing motor 802, and the toothed 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 toothed ring 805, so that the rotating rod 806 and the shearing rod 801 rotate along opposite directions in the shearing section 101 of the processing box 1, the shearing and crushing effect of the four raw materials on the top surface of the dispersing disc 7 is greatly improved, the primary mixing and shearing and crushing of the four raw materials are realized, and the quality of magnesium slag-containing silicate cement raw materials is improved;
The sheared and crushed raw materials fall into the extrusion section 102 through the rotation of the rotating rod 806 and the conical cambered surface action of the dispersing disc 7, the two crushing rollers 3 rotate downwards along the center through the driving action of the crushing motor 5 and the meshing transmission of the two reversing gears 4, the jacking extrusion mechanism 9 is driven to carry out reciprocating extrusion crushing treatment on the raw materials, the crushed raw materials fall into the center of the two crushing rollers 3 again to carry out rotary crushing treatment, triple crushing of the raw materials is realized, and the raw materials subjected to rotary crushing are spirally rotated through the auger blades 602 through the transmission action of the transmission belt wheels 604 and the transmission belt 605, so that the raw materials are spirally discharged from the bottom surface of the spiral feeding section 104 of the processing box 1, and multiple crushing and mixing treatment of the magnesium slag-containing silicate cement raw materials are formed.
The working process can be as follows: through the drive of shear motor 802 for shear bar 801 and dwang 806 rotate in opposite direction, thereby make four kinds of raw materials mix more evenly in shearing section 101, and through shear bar 801 and dwang 806 reverse rotation, further improve the effect of shearing the broken raw materials, and through the drive of crushing motor 5, carry out repeated extrusion crushing treatment to the raw materials and then rotate the broken again, thereby realize triple crushing treatment to four kinds of raw materials, and carry out spiral ejection of compact treatment to it through auger blade 602, the mixed preparation process step to the silicate cement raw material of magnesium slag has been simplified, and carry out triple crushing to it can effectively improve the homogeneity of the silicate cement raw material of magnesium slag, thereby improve the quality of sintering treatment through the cement kiln that follows, carry out reasonable interpolation to the magnesium slag, and reduce the content of lime raw material, waste material to magnesium slag, environmental protection and energy saving, and its preparation technology is simple and convenient.
Further, as shown in fig. 2, fig. 3 and fig. 6, it is worth specifically explaining that the jacking extrusion mechanism 9 includes two symmetrically distributed turntables 901, two turntables 901 are respectively coaxially fixed with two ends of the crushing roller 3 far away from the crushing motor 5, a rotating column 902 is fixed on the outer surface of the turntables 901, two symmetrically distributed guide sleeves 903 are fixed on the outer wall of the extrusion section 102, ejector rods 904 are slidably penetrated in the two guide sleeves 903, limiting rings 905 fixed on the bottom surface of the ejector rods 904 are arranged on the periphery of the rotating column 902, four symmetrically distributed jacking grooves 906 are formed on the side walls of two sides of the extrusion section 102, connecting rods 907 fixed on the inner surface of the ejector rods 904 are slidably penetrated in the two jacking grooves 906, an extrusion plate 908 is fixed between the two connecting rods 907, the extrusion plate 908 is slidably connected with the inner wall of the extrusion section 102, the turntables 901 at two ends synchronously rotate while the crushing roller 3 rotates, the ejector rods 904 reciprocate in the guide sleeves 903 through the action of the rotating column 902 and the limiting rings 903, so that the ejector rods 904 reciprocate up and down along with the reciprocating rotation of the guide sleeves 903, the ejector rods 904 reciprocate, so that the raw materials are dispersed from the upper surface 7 to the lower surface of the turntables are further extruded into the crushing plate 908 along with the reciprocating motion of the extrusion plate 908, and the raw materials are further extruded from the lower surface 7.
Further, as shown in fig. 4, it is worth specifically describing that the extrusion section 102 is located below the dispersion disc 7 and is in a screen shape, the extrusion plates 908 are located on two sides of the screen shape and are arranged in inverted splayed shapes, and the materials after shearing and crushing are better concentrated and distributed in the center of the extrusion plates 908, so that the materials are convenient to contact, extrude and crush with the bottom surface of the dispersion disc 7, and the crushing effect on the materials is improved.
As further shown in fig. 2, 3 and 6, it should be specifically explained that the inner walls of the two other lifting 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 extrusion plate 908 and the connecting rod 907, and the L-shaped rod 10 is arranged to enable the push rod 904 to perform double limiting on the extrusion plate 908 through the connecting rod 907 and the L-shaped rod 10 when in up-down reciprocating motion, so that the stability of the extrusion plate 908 in up-down extrusion motion is improved.
To sum up: through the drive of shearing motor 802 for shearing bar 801 and dwang 806 rotate in opposite direction, thereby make four kinds of raw materials mix more evenly in shearing section 101, and through shearing bar 801 and dwang 806 reverse rotation, further improve the effect of shearing the broken raw materials, and through the drive of crushing motor 5, realize repeatedly squeezing crushing processing and two crushing rollers 3 rotate the broken once more through the reciprocating motion about stripper plate 908, 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 process step to the portland cement raw materials of magnesium slag has been simplified, and carry out triple crushing to it can effectively improve the homogeneity of the portland cement raw materials of magnesium slag, thereby improve the quality of follow-up sintering treatment through the cement kiln.
Both the shearing motor 802 and the crushing motor 5 can be purchased in the market, and both the shearing motor 802 and the crushing motor 5 are provided with power sources, which are fully disclosed in the art, and therefore, the description is not repeated.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs, the terms "comprising" or "comprises" and the like as used herein shall mean that the element or article preceding the term encompasses the element or article listed after the term and equivalents thereof without excluding other elements or articles, and that the terms "connected" or "connected" and the like shall not be limited to physical or mechanical connections, but shall also include electrical connections, whether direct or indirect, "upper", "lower", "left", "right", etc. are merely intended to indicate relative positional relationships that may also be correspondingly altered when the absolute position of the object being described is altered.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The method for manufacturing the silicate magnesium slag cement by using the magnesium slag is characterized by taking a preparation device as a basis, and comprises the following steps of:
S1, selecting a mass ratio of 12:3:1:4, respectively feeding the lime raw material, the clay raw material, the gypsum retarding raw material and the magnesium slag correction raw material into a shearing section (101) of the treatment box (1) through four feeding hoppers (2) communicated with the top surface of the treatment box (1) to form primary mixing and shearing crushing treatment of the raw materials;
S2, dispersing the sheared and crushed raw materials into an extrusion section (102) of a processing box (1), repeatedly jacking, extruding and crushing the raw materials to form extrusion and crushing treatment on the raw materials;
S3, the extruded and crushed raw materials fall into a crushing section (103) to be subjected to rotary crushing treatment, so that re-crushing treatment of the raw materials is formed, and then the crushed and refined raw materials fall into a spiral feeding section (104) to be subjected to spiral conveying treatment, so that spiral conveying and discharging of the raw materials are formed, and silicate cement raw materials containing magnesium slag correction raw materials are formed;
S4, delivering the Portland cement raw material containing the magnesium slag correction raw material into a cement kiln for calcination, and collecting and processing after the calcination is completed to complete the preparation of Portland cement clinker containing the magnesium slag correction raw material;
The preparation device comprises a treatment box (1), wherein the treatment box (1) comprises 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, the four feeding hoppers (2) are uniformly distributed on the top surface of the shearing section (101), two symmetrically distributed crushing rollers (3) are rotationally connected to the inner wall of the crushing section (103), reversing gears (4) are coaxially fixed to the outer ends of the two crushing rollers (3) respectively, the two reversing gears (4) are in meshed connection, a crushing motor (5) which is coaxially connected with one of the crushing rollers (3) is arranged on the outer wall of the crushing section (103), a spiral feeding mechanism (6) which is matched with the crushing rollers (3) is arranged on the inner wall of the spiral feeding section (104), a dispersing disc (7) is fixed on the inner wall of the bottom of the shearing section (101), a crushing mechanism (8) which is matched with the top surface of the dispersing disc (7) is arranged in the inner wall of the shearing section (101), and the crushing section (102) is provided with the crushing mechanism (9) which is matched with the dispersing disc (7);
The spiral feeding mechanism (6) comprises a rotating shaft (601) rotationally connected with the inner wall of the spiral feeding section (104), an auger blade (602) is fixedly sleeved on the outer surface of the rotating shaft (601), a discharge hole (603) formed in the inner wall of the spiral feeding section (104) is formed in one side of the auger blade (602), a transmission belt wheel (604) is coaxially fixed on the outer end surface of the rotating shaft (601) and one of the crushing rollers (3) respectively, and transmission belts (605) are arranged on the outer surfaces of the two transmission belt wheels (604);
the shearing and crushing mechanism (8) comprises a shearing rod (801) rotationally connected with the inner wall of the top of the shearing section (101) and the top surface of the dispersing disc (7), a shearing motor (802) coaxially connected with the shearing rod (801) is installed on the top surface of the shearing section (101), four upright posts (803) which are symmetrically distributed are fixed on the inner wall of the top of the shearing section (101), limit discs (804) which are jointly fixed with the outer surfaces of the four upright posts (803) are arranged on the periphery of the shearing section (801), tooth-shaped rings (805) are rotationally connected to the opposite surfaces of the limit discs (804) and the shearing section (101), a plurality of uniformly distributed rotating rods (806) are fixed on the bottom surface of each tooth-shaped ring (805), a driving gear (807) coaxially fixed with each shearing rod (801) is arranged on the top surface of the limit discs (804), driven gears (808) are rotationally connected to the top surface of the shearing section (101), and two sides of each driven gear (808) are respectively meshed with the driving gear (807) and each tooth-shaped ring (805);
Jacking extrusion mechanism (9) are including two carousel (901) that are symmetrical distribution, two carousel (901) respectively with keep away from broken motor (5) the both ends coaxial fixed of crushing roller (3), the surface fixation of carousel (901) has spliced pole (902), the outer wall of extrusion section (102) is fixed with two uide bushing (903) that are symmetrical distribution, two all slip in uide bushing (903) run through ejector pin (904), the periphery of spliced pole (902) be provided with spacing ring (905) that ejector pin (904) bottom surface is fixed, four jacking grooves (906) that are symmetrical distribution have been seted up to the both sides lateral wall of extrusion section (102), wherein two in jacking groove (906) all slip run through with ejector pin (904) internal surface fixed connecting rod (907), two be fixed with stripper plate (908) between connecting rod (907), stripper plate (908) with the inner wall sliding connection of extrusion section (102).
2. A method for manufacturing portland cement by using magnesium slag according to claim 1, wherein: the outer surface of the rotating rod (806) is attached to the inner wall of the shearing section (101), and shearing blades of the shearing rod (801) and the rotating blades of the rotating rod (806) are distributed in an up-down parallel mode.
3. A method for manufacturing portland cement by using magnesium slag according to claim 2, wherein: the top surface of dispersion dish (7) is the toper cambered surface setting, the rotor blade of dwang (806) bottom with the contact surface of dispersion dish (7) is the cambered surface of looks adaptation.
4. A method for manufacturing portland cement by using magnesium slag according to claim 1, wherein: the extrusion section (102) is located below the dispersion plate (7) and is in a screen shape, and the extrusion plates (908) are located on two sides of the screen shape, and the vertical sections of the two sides of the screen shape are arranged in an inverted splayed shape.
5. A method for manufacturing portland cement by using magnesium slag according to claim 1, wherein: the inner walls of the other two jacking grooves (906) are respectively penetrated by an L-shaped rod (10) in a sliding way, and two ends of the L-shaped rod (10) are respectively fixed with the extrusion plate (908) and the connecting rod (907).
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| CN115532357A (en) | 2022-12-30 |
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