CN113416815A - Synthetic slag for aluminum killed steel direct slag-feeding washing desulfurization process and production process and equipment thereof - Google Patents
Synthetic slag for aluminum killed steel direct slag-feeding washing desulfurization process and production process and equipment thereof Download PDFInfo
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- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Abstract
The invention relates to the technical field of steel making, in particular to synthetic slag for a direct slag-washing desulfurization process of aluminum killed steel, which comprises the following components in parts by weight: CaO 25-50%, Al2O320-40% of SiO20-8 percent of BaO, 0-10 percent of MgO and BaCO30 to 8 percent of Na2CO30-10% of B2O30-5%, C0-10%, Al 0-20%, Li2O is 0 to 5 percent. The invention adds active lime and BaCO3、Na2CO3And self-made slag as main material, and C, CaC2And Al ensures that the materials are melted completely while being broken rapidly, and the slag washing target of rapid desulfurization is achieved.
Description
Technical Field
The invention relates to the technical field of steel making, in particular to synthetic slag for a direct slag-washing desulfurization process of aluminum killed steel, a production process and equipment thereof.
Background
Sulfur is one of the most common harmful impurities in steel, and minimizing sulfur content in steel is always a popular research topic. Sulfur has very low solubility in steel and exists in steel in the form of FeS. FeS and iron FeO and the like also generate low-melting-point eutectic crystals, and the eutectic crystals are separated out in a net shape along grain boundaries in the steel condensation process to destroy the connection among the grains, so that the steel is cracked. In addition, sulfur can cause severe grain boundary segregation during steel condensation, which exacerbates this hazard. Many properties of steel, such as aluminum killed steel, are affected by the sulfur content and the physical and chemical properties of sulfide inclusions formed in the steel. FeS-MnS inclusions are easy to deform at a hot rolling temperature and become extended inclusions, so that the performance anisotropy of steel is caused; the converter smelting is oxidative operation, the desulfurization is extremely limited, the desulfurization efficiency of single slag operation is 30-40%, and the requirement of the desulfurization task of smelting low-sulfur steel cannot be met. At present, the desulphurization of the smelted low-sulfur steel is mainly assisted by the following two stages, namely the molten iron pretreatment desulphurization and the secondary refining desulphurization; in order to reduce the production cost and control the proper sulfur content, many steel enterprises adopt a refining-free direct process to achieve the aim;
many steel mills have realized the straight-upward slag washing process, but the desulfurization is basically shallow desulfurization, the desulfurization yield (the general target S is less than 0.015%) is generally between 75 and 83 percent, the unqualified steel billets caused by the difficulty of desulfurization due to serious slag discharging can be generated in the approach, and the deep desulfurization is almost difficult to realize.
Disclosure of Invention
The invention aims to solve the defect of high deep desulfurization difficulty in the prior art, and provides synthetic slag for a direct slag-feeding washing desulfurization process of aluminum killed steel.
In order to achieve the purpose, the invention adopts the following technical scheme:
the synthetic slag for the aluminum killed steel direct slag washing desulfurization process is designed, and comprises the following components in parts by weight: CaO 25-50%, Al2O320-40% of SiO20-8 percent of BaO, 0-10 percent of MgO and BaCO30 to 8 percent of Na2CO30-10% of B2O30-5%, C0-10%, Al 0-20%, Li2O is 0 to 5 percent;
the BaCO3May be waste containing barium, the Na2CO3The C is industrial soda ash and can be any one of petroleum coke, graphite electrode waste, carbonaceous material waste or calcined coal; the Al can be metal aluminum ingot or waste aluminum, and the B2O3Can be natural boraxBoric acid may also be a boron-containing waste, Li2O may be lithium carbonate or Li-containing2Waste of O.
The invention also provides a production process of the synthetic slag for the aluminum killed steel direct slag washing desulfurization process, which comprises the following steps;
step 1: weighing the materials according to a certain proportion, and then putting the materials into a forced stirrer to stir for 3-5 min;
step 2: putting the dried material in the step 1 into a ball press machine for pressing or rolling into balls in a ball forming disc, and screening by a vibrating screen to obtain a proper ball-like finished product, wherein a screen plate is 1-40 mm;
and step 3: and (3) drying the materials in the step (2), wherein the baking temperature is 200-300 ℃, and the dried materials are continuously put into a vibrating screen for screening, and the screen plate is 0.5-40 mm.
The invention also provides a production device of the synthetic slag for the aluminum killed steel direct slag-feeding and washing desulfurization process, which comprises a rack, a stirring mechanism, a drying mechanism, a ball pressing mechanism and a driving mechanism, wherein the stirring mechanism is arranged at the top end of the rack;
the stirring mechanism comprises a stirring barrel, a mounting plate, a stirring motor, a central stirring shaft, a spiral stirring shaft, an annular seat, a fixed rod, a transmission assembly and a material pump, wherein the stirring barrel is fixedly mounted at the top of the frame, the mounting plate is fixedly mounted at the top of the stirring barrel, the stirring motor is fixedly mounted at the top of the mounting plate, the central stirring shaft is rotatably mounted at the inner side of the stirring barrel, an output shaft of the stirring motor is fixedly connected with the central stirring shaft, the spiral stirring shafts are uniformly distributed around the central stirring shaft and are rotatably mounted at the inner side of the stirring barrel, the top ends of the spiral stirring shafts are rotatably connected with the annular seat, one end of the fixed rod is fixedly mounted at the outer edge of the annular seat, the other end of the fixed rod is fixedly connected with the inner wall of the stirring barrel, and the material pump is fixedly mounted at the outer side of the stirring barrel, the inlet end of the material pump is communicated with the interior of the stirring barrel; the transmission assembly comprises a first gear and a second gear, the first gear is fixedly arranged at the bottom of the central stirring shaft, the number of the second gears is the same as that of the spiral stirring shafts, the plurality of second gears are fixedly arranged at the bottoms of the corresponding spiral stirring shafts, and the plurality of second gears are all meshed with the first gear;
the drying mechanism comprises a drying box, a rotating roller, partition plates, arc-shaped drying lamps, a discharge port and a material guide channel, the drying box is fixedly mounted on a rack, the outlet end of the material pump is communicated with the inside of the drying box through a guide pipe, the rotating roller is rotatably mounted inside the drying box, the number of the partition plates is a plurality, the partition plates are uniformly distributed around the drying box and are fixedly mounted on the outer side of the rotating roller, the arc-shaped drying lamps are fixedly mounted on the inner side of the drying box, the discharge port is formed in the bottom end of the drying box, and the material guide channel is fixedly mounted at the outlet end of the discharge port;
the ball pressing mechanism comprises a ball pressing box, a ball pressing component, a cleaning component, a box door component, a discharge channel and a sieve plate, the ball pressing box is fixedly arranged at the bottom end of the material guide channel, the ball pressing component is arranged in the ball pressing box, the sieve plate is fixedly arranged in the ball pressing box, the discharge channel is fixedly arranged at the bottom end of the ball pressing box, the cleaning component is arranged on the sieve plate, and the box door component is arranged at two ends of the sieve plate;
the ball pressing assembly comprises two fluted discs, two central gears, a plurality of walking gears, a plurality of central compression rollers and a plurality of walking compression rollers, wherein the two fluted discs are fixedly arranged at two ends of the inner side of the ball pressing box respectively;
the cleaning assembly comprises a reciprocating screw, a moving seat, a guide rod, two buckets and a fixed rack, the reciprocating screw is rotatably installed inside the ball pressing box, the moving seat is installed on the reciprocating screw in a threaded manner, the guide rod is fixedly installed inside the ball pressing box, the guide rod penetrates through the moving seat and is in sliding connection with the moving seat, the number of the buckets is two, the two buckets are respectively and fixedly installed at two ends of the moving seat, and the fixed rack is fixedly installed at the bottom of the moving seat;
the box door assembly comprises a mounting groove, a third gear, a sliding rack, a fourth gear, a box door and a clamping block, the mounting groove is formed in the inner side of the ball pressing box, the third gear is rotatably mounted at one end of the mounting groove, the sliding rack is slidably mounted in the mounting groove, one end of the sliding rack can be meshed with the third gear, the fourth gear is rotatably mounted at the other end of the mounting groove, the other end of the sliding rack can be meshed with the fourth gear, the box door is coaxially and fixedly connected with the fourth gear, and the clamping block is fixedly mounted on the inner side of the box door;
the driving mechanism comprises a driving motor, a first belt wheel, a second belt wheel, a third belt wheel, a fourth belt wheel, a fifth belt wheel and a sixth belt wheel, the driving motor is fixedly installed on the outer side of the ball pressing box, an output shaft of the driving motor is fixedly connected with the first belt wheel and the third belt wheel, the second belt wheel is fixedly connected with the rotating roller in a coaxial mode, the first belt wheel is connected with the second belt wheel in a belt transmission mode, the fourth belt wheel is fixedly connected with the center pressing roller in a coaxial mode, the second belt wheel is connected with the fourth belt wheel in a belt transmission mode, the fifth belt wheel is fixedly connected with the fourth belt wheel in a coaxial mode, the sixth belt wheel is fixedly connected with the end portion of the reciprocating screw rod, and the sixth belt wheel is connected with the sixth belt wheel in a belt transmission mode.
Preferably, a plurality of walking compression roller all with central compression roller laminating, and can slide along central compression roller to can evenly press the ball to the material.
Preferably, the number of the guide rods is two, and the two guide rods are respectively located at two ends of the moving seat.
Preferably, two the ground of scraper bowl can with the top surface contact of sieve, just slide along the top surface of sieve to material to the sieve top surface is cleared up, avoids the sieve to cause the jam.
Preferably, the outer side of the ball pressing box is provided with a clamping groove matched with the clamping block, and the clamping block can be in sealing fit with the corresponding clamping groove.
Preferably, the number of the walking gears is four, and four walking gears can roll along the central gear, so that four walking press rollers roll along the central press roller.
Preferably, the thread directions of both ends of the reciprocating screw are different, and the movable base can reciprocate along the reciprocating screw.
Preferably, a material recovery box is arranged at the position of the box door and used for containing materials cleaned out by the bucket.
The production process of the synthetic slag for the aluminum killed steel direct slag-feeding washing desulfurization process has the beneficial effects that: by adding active lime and BaCO3、Na2CO3And self-made slag as main material, and C, CaC2Al ensures that the materials are melted completely while being broken rapidly, and achieves the slag washing target of rapid desulfurization;
the invention provides a production device of synthetic slag for a vertical slag washing and desulfurizing process of aluminum killed steel, which has the beneficial effects that:
1. the central stirring shaft and the first gear are driven to synchronously rotate by the stirring motor, and all the spiral stirring shafts synchronously and reversely rotate around the central stirring shaft due to the meshing of the first gear and the second gear, so that materials in the stirring barrel can be mixed in multiple directions, and the mixing effect is greatly improved;
2. materials are placed between the two adjacent partition plates, and the arc-shaped drying lamps can uniformly heat and dry the materials by the rotation of the rotating rollers and finally are led out through the material guide channels, so that the drying efficiency is greatly improved;
3. through the rotation of sun gear to make whole walking gears roll along central compression roller, and then make and slide along central compression roller, can evenly press the ball to the material like this.
Drawings
FIG. 1 is a flow chart of a production process of synthetic slag for a direct slag-up washing desulfurization process of aluminum killed steel, which is provided by the invention;
FIG. 2 is a schematic structural diagram I of a production device for synthetic slag for a direct slag-washing desulfurization process of aluminum killed steel, which is provided by the invention;
FIG. 3 is a schematic structural diagram II of a production apparatus for synthetic slag for a direct slag-washing desulfurization process for aluminum killed steel according to the present invention;
FIG. 4 is a schematic structural diagram I of a stirring mechanism of a production device for washing synthetic slag for desulfurization process of aluminum killed steel
FIG. 5 is a schematic structural diagram II of a stirring mechanism of a production device for synthetic slag for a direct slag-washing desulfurization process of aluminum killed steel
FIG. 6 is a schematic structural diagram of a drying mechanism of a production device for synthetic slag for a direct slag-washing desulfurization process of aluminum killed steel
FIG. 7 is a schematic structural view of a driving mechanism of a device for producing synthetic slag for a desulfurization process by washing aluminum killed steel with slag directly
FIG. 8 is a schematic structural view of a ball pressing mechanism of a device for producing synthetic slag for a desulfurization process by washing aluminum killed steel with slag directly
FIG. 9 is a schematic structural view of a ball pressing assembly of a device for producing synthetic slag for a desulfurization process by washing aluminum killed steel with slag directly
FIG. 10 is a schematic structural view of a cleaning assembly of a production device for synthetic slag for a direct slag-up washing desulfurization process of aluminum killed steel
FIG. 11 is a schematic structural diagram of a box door assembly of a synthetic slag production device for an aluminum killed steel direct slag-up washing desulfurization process.
In the figure: the device comprises a frame 1, a stirring mechanism 2, a stirring barrel 21, a mounting plate 22, a stirring motor 23, a central stirring shaft 24, a spiral stirring shaft 25, an annular seat 26, a fixed rod 27, a transmission assembly 28, a first gear 281, a second gear 282, a material pump 29, a drying mechanism 3, a drying box 31, a rotating roller 32, a partition plate 33, an arc-shaped drying lamp 34, a discharge port 35, a material guide channel 36, a ball pressing mechanism 4, a ball pressing box 41, a ball pressing assembly 42, a fluted disc 421, a central gear 422, a walking gear 423, a central pressing roller 424, a walking pressing roller 425, a cleaning assembly 43, a reciprocating screw 431, a moving seat 432, a guide rod 433, a bucket 434, a fixed rack 435, a box door assembly 44, a mounting groove 441, a third gear 442, a sliding rack 443, a fourth gear 444, a box door 445, a clamping block 446, a discharge channel 45, a sieve plate 46, a driving mechanism 5, a driving motor 51, a first belt wheel 52, a second belt wheel 53, a material conveying belt wheel 36, a material conveying device, a conveying device, a conveying device, a conveying device, a conveying device, a conveying device, a conveying device, a device, a third pulley 54, a fourth pulley 55, a fifth pulley 56, and a sixth pulley 57.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1, the synthetic slag for the aluminum killed steel direct slag washing desulfurization process comprises the following components in parts by weight: CaO 25%, Al2O340 percent of SiO 22 portions of BaO, 3 portions of MgO, 5 percent of BaCO3Is 4 parts of Na2CO3Is 6 parts, B2O35 parts of C, 3 parts of Al and Li2O is 2 parts;
BaCO3can be waste containing barium, Na2CO3The material is industrial soda ash, and C can be any one of petroleum coke, graphite electrode waste, carbonaceous material waste or calcined coal; al may be metallic aluminum ingot or scrap aluminum, B2O3Can be natural borax, boric acid or boron-containing waste, Li2O may be lithium carbonate or Li-containing2Waste of O.
The invention also provides a production process of the synthetic slag for the aluminum killed steel direct slag washing desulfurization process, which comprises the following steps;
step 1: weighing the materials in proportion, then putting the materials into a forced stirrer to stir for 3min, then guiding the materials out of a drying device through a material pump to dry, wherein the drying temperature is 300 ℃, and the duration time is 5 min;
step 2: putting the dried material in the step 1 into a high-pressure ball press machine for dry pressing, and screening by a sieve plate to obtain a proper spheroidal finished product, wherein the sieve plate is 300 meshes;
and step 3: and (3) carrying out ball milling on the materials in the step (2) until the diameter of the materials is less than 0.088mm, and drying to obtain a finished product with proper granularity, wherein the drying temperature is 200 ℃.
The invention is mainly used for slag washing desulfurization of aluminum killed steel direct slag washing process, active lime, self-made molten slag material, barium carbonate, sodium carbonate and the like are used as main raw materials, the decomposition of carbonic acid causes the material to break at high temperature, rapidly disperse and be melted into molten steel, and simultaneously, the introduced Al, C and CaC are2Removing [ O ] from steel by reaction under equal reaction]The aim of desulfurizing molten steel is fulfilled to achieve the aim of desulfurizing by washing slag; by adding active lime and BaCO3、Na2CO3And self-made slag as main material, and C, CaC2And Al ensures that the materials are melted completely while being broken rapidly, and the slag washing target of rapid desulfurization is achieved.
Example 2:
referring to fig. 1, as another preferred embodiment of the present invention, there is a difference from embodiment 1 in that,
referring to fig. 1, the synthetic slag for the aluminum killed steel direct slag washing desulfurization process comprises the following components in parts by weight: 50 percent of CaO, Al2O3Is 20 parts of SiO 22 portions of BaO, 3 portions of MgO, 5 percent of BaCO3Is 4 parts of Na2CO3Is 6 parts, B2O33 parts, C2 parts, Al 3 parts, Li2O is 2 parts; (ii) a
The BaCO3May be waste containing barium, the Na2CO3The C is industrial soda ash and can be any one of petroleum coke, graphite electrode waste, carbonaceous material waste or calcined coal; the Al may beSo as to be a metallic aluminum ingot or scrap aluminum, B2O3Can be natural borax, boric acid or boron-containing waste, Li2O may be lithium carbonate or Li-containing2Waste of O.
The invention also provides a production process of the synthetic slag for the aluminum killed steel direct slag washing desulfurization process, which comprises the following steps;
step 1: weighing the materials according to a certain proportion, and then putting the materials into a forced stirrer to stir for 3-5 min;
step 2: putting the material in the step 1 into a high-pressure ball press machine for dry pressing, and screening by a vibrating screen to obtain a proper spheroidal finished product, wherein a screen plate is 1-40 mm;
and step 3: and (3) feeding the materials in the step (2) into a drying device for drying, wherein the drying temperature is 200-300 ℃, the duration time is 10-30min, and the dried semi-finished product is put into a vibrating screen for screening to obtain a finished product with the thickness of 0.5-40 mm.
The invention is mainly used for slag washing desulfurization of aluminum killed steel direct slag washing process, active lime, self-made molten slag material, barium carbonate, sodium carbonate and the like are used as main raw materials, the decomposition of carbonic acid causes the material to break at high temperature, rapidly disperse and be melted into molten steel, and simultaneously, the introduced Al, C and CaC are2Removing [ O ] from steel by reaction under equal reaction]The aim of desulfurizing molten steel is fulfilled to achieve the aim of desulfurizing by washing slag; by adding active lime and BaCO3、Na2CO3And self-made slag as main material, and C, CaC2And Al ensures that the materials are melted completely while being broken rapidly, and the slag washing target of rapid desulfurization is achieved.
Example 3:
materials need to be mixed and stirred in the process of preparing the synthetic slag, and the stirring shaft fixed in the stirrer in the prior art can not rotate and stir in a single direction, so that the materials can not be uniformly mixed, and the stirring effect is not ideal; in addition, when the material is rolled and slagged by the ball press, the material is generally extruded by two compression rollers, so that the contact range of the material and the compression rollers is not limited, and the material cannot be pressed to the maximum extent;
referring to fig. 2-11, a production device of synthetic slag for aluminum killed steel direct slag-up washing desulfurization process comprises a frame 1, a stirring mechanism 2, a drying mechanism 3, a ball pressing mechanism 4 and a driving mechanism 5, wherein the stirring mechanism 2 is installed at the top end of the frame 1, the drying mechanism 3 is installed on the frame 1, the ball pressing mechanism 4 is installed at the outlet end of the drying mechanism 3, and the driving mechanism 5 is installed at the outer side of the ball pressing mechanism 4;
the stirring mechanism 2 comprises a stirring barrel 21, a mounting plate 22, a stirring motor 23, a central stirring shaft 24, spiral stirring shafts 25, an annular seat 26, a fixing rod 27, a transmission assembly 28 and a material pump 29, wherein the stirring barrel 21 is fixedly mounted at the top of the rack 1, the mounting plate 22 is fixedly mounted at the top of the stirring barrel 21, the stirring motor 23 is fixedly mounted at the top of the mounting plate 22, the central stirring shaft 24 is rotatably mounted at the inner side of the stirring barrel 21, an output shaft of the stirring motor 23 is fixedly connected with the central stirring shaft 24, the spiral stirring shafts 25 are distributed uniformly around the central stirring shaft 24 and are rotatably mounted at the inner side of the stirring barrel 21, the top ends of the spiral stirring shafts 25 are rotatably connected with the annular seat 26, one end of the fixing rod 27 is fixedly mounted at the outer edge of the annular seat 26, and the other end of the fixing rod 27 is fixedly connected with the inner wall of the stirring barrel 21, the material pump 29 is fixedly arranged on the outer side of the stirring barrel 21, and the inlet end of the material pump 29 is communicated with the interior of the stirring barrel 21; the transmission assembly 28 comprises a first gear 281 and a second gear 282, the first gear 281 is fixedly arranged at the bottom of the central stirring shaft 24, the number of the second gears 282 is the same as that of the spiral stirring shafts 25, a plurality of the second gears 282 are fixedly arranged at the bottom of the corresponding spiral stirring shafts 25, and a plurality of the second gears 282 are all meshed with the first gear 281;
make central (mixing) shaft 24 and first gear 281 synchronous rotation through the drive of mixing motor 23, because first gear 281 and the meshing of second gear 282, so whole spiral (mixing) shaft 25 is around central (mixing) shaft 24 synchronous counter-rotation, and this just makes the material of agitator 21 can multi-direction mix, has improved the mixed effect greatly.
The drying mechanism 3 comprises a drying box 31, a rotating roller 32, partition plates 33, arc-shaped drying lamps 34, a discharge port 35 and a material guide channel 36, the drying box 31 is fixedly installed on the rack 1, the outlet end of the material pump 29 is communicated with the inside of the drying box 31 through a guide pipe, the rotating roller 32 is rotatably installed inside the drying box 31, the number of the partition plates 33 is a plurality, the partition plates 33 are uniformly distributed around the drying box 31 and are fixedly installed on the outer side of the rotating roller 32, the arc-shaped drying lamps 34 are fixedly installed on the inner side of the drying box 31, the discharge port 35 is arranged at the bottom end of the drying box 31, and the material guide channel 36 is fixedly installed at the outlet end of the discharge port 35;
be used for placing the material between two adjacent baffles 33, through the rotation of live-rollers 32 to make arc drying lamp 34 can carry out the even heating stoving to the material, derive through guide channel 36 at last, improved drying efficiency greatly.
The ball pressing mechanism 4 comprises a ball pressing box 41, a ball pressing component 42, a cleaning component 43, a box door component 44, a discharge channel 45 and a sieve plate 46, wherein the ball pressing box 41 is fixedly arranged at the bottom end of the material guide channel 36, the ball pressing component 42 is arranged inside the ball pressing box 41, the sieve plate 46 is fixedly arranged inside the ball pressing box 41, the discharge channel 45 is fixedly arranged at the bottom end of the ball pressing box 41, the cleaning component 43 is arranged on the sieve plate 46, and the box door component 44 is arranged at two ends of the sieve plate 46;
the ball pressing assembly 42 includes a gear plate 421, a central gear 422, and a traveling gear 423, the central pressing roller 424 and the walking pressing rollers 425, the number of the fluted discs 421 is two, the two fluted discs 421 are respectively and fixedly installed at two ends of the inner side of the ball pressing box 41, the number of the central gears 422 is two, the two central gears 422 are respectively and rotatably installed at the inner sides of the corresponding fluted discs 421, the number of the walking gears 423 is that a plurality of walking gears 423 are uniformly distributed in the corresponding fluted discs 421, the walking gears 423 are positioned between the inner tooth walls of the fluted discs 421 and the central gears 422 and are respectively meshed with the central gears 422, the central pressing roller 424 is fixedly installed between the two central gears 422, the number of the walking pressing rollers 425 is a plurality of walking gears 423 and are fixedly connected with the corresponding walking gears 423, the number of the walking gears 423 can be four, and the four walking gears 423 can roll along the central gears 422, so that the four walking pressing rollers 425 roll along the central pressing rollers 424; a plurality of walking pressing rollers 425 are attached to the central pressing roller 424 and can slide along the central pressing roller 424;
all the walking gears 423 are rolled along the central pressing roller 424 by the rotation of the central gear 422, and then slide along the central pressing roller 424, so that the materials can be uniformly pressed.
The cleaning assembly 43 comprises a reciprocating screw 431, a moving seat 432, a guide rod 433, a bucket 434 and a fixed rack 435, wherein the reciprocating screw 431 is rotatably installed inside the ball pressing box 41, the moving seat 432 is threadedly installed on the reciprocating screw 431, the thread directions of two ends of the reciprocating screw 431 are different, and the moving seat 432 can reciprocate along the reciprocating screw 431; the guide rods 433 are fixedly installed inside the ball pressing box 41, the guide rods 433 penetrate through the moving seat 432 and are in sliding connection with the moving seat 432, the number of the guide rods 433 is two, and the two guide rods 433 are respectively located at two ends of the moving seat 432; the number of the scoops 434 is two, two scoops 434 are respectively fixedly installed at both ends of the moving base 432, the fixed rack 435 is fixedly installed at the bottom of the moving base 432, and the ground of the two scoops 434 can contact with the top surface of the screen deck 46 and slide along the top surface of the screen deck 46;
the moving seat 432 can move back and forth by the rotation of the reciprocating screw 431, so that the bucket 434 can clean the materials on the top surface of the sieve plate 46, and the sieve plate 46 is prevented from being blocked;
the box door assembly 44 comprises a mounting groove 441, a third gear 442, a sliding rack 443, a fourth gear 444, a box door 445 and a fixture block 446, the mounting groove 441 is arranged on the inner side of the ball pressing box 41, the third gear 442 is rotatably mounted at one end of the mounting groove 441, the sliding rack 443 is slidably mounted in the mounting groove 441, one end of the sliding rack 443 can be meshed with the third gear 442, the fourth gear 444 is rotatably mounted at the other end of the mounting groove 441, the other end of the sliding rack 443 can be meshed with the fourth gear 444, the box door 445 is coaxially and fixedly connected with the fourth gear 444, and a material recovery box is arranged at the position of the box door 445 and used for receiving materials cleaned by the bucket 434; the clamping block 446 is fixedly arranged on the inner side of the box door 445, a clamping groove matched with the clamping block 446 is formed in the outer side of the ball pressing box 41, and the clamping block 446 can be in sealing fit with the corresponding clamping groove;
when the fixed rack 435 at the bottom of the movable base 432 moves to be engaged with the third gear 442, the third gear 442 rotates by continuing to move, so that the sliding rack 443 slides inwards, and the fourth gear 444 drives the box door 445 to rotate outwards, so that the box door 445 is in an open state, and at the same time, the bucket 434 can take out the cleaned materials;
the driving mechanism 5 comprises a driving motor 51, a first belt wheel 52, a second belt wheel 53, a third belt wheel 54, a fourth belt wheel 55, a fifth belt wheel 56 and a sixth belt wheel 57, the driving motor 51 is fixedly installed on the outer side of the ball pressing box 41, an output shaft of the driving motor 51 is fixedly connected with the first belt wheel 52 and the third belt wheel 54, the second belt wheel 53 is coaxially and fixedly connected with the rotating roller 32, the first belt wheel 52 is connected with the second belt wheel 53 through a belt, the fourth belt wheel 55 is coaxially and fixedly connected with the central pressing roller 424, the second belt wheel 53 is connected with the fourth belt wheel 55 through a belt, the fifth belt wheel 56 is coaxially and fixedly connected with the fourth belt wheel 55, the sixth belt wheel 57 is fixedly connected with the end of the reciprocating screw 431, and the sixth belt wheel 57 is connected with the sixth belt wheel 57 through a belt.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The synthetic slag for the aluminum killed steel direct slag washing desulfurization process is characterized by comprising the following components in parts by weight: CaO 25-50%, Al2O320-40% of SiO20-8 percent of BaO, 0-10 percent of MgO and BaCO30 to 8 percent of Na2CO30-10% of B2O30-10% of C, 0-10% of Al and Li2O is 0 to 5 percent;
the BaCO3May be waste containing barium, the Na2CO3The C is industrial soda ash and can be any one of petroleum coke, graphite electrode waste, carbonaceous material waste or calcined coal; the Al may beIs a metallic aluminum ingot or scrap aluminum, B2O3Can be natural borax, boric acid or boron-containing waste, and the Li2O may be lithium carbonate or Li-containing2Waste of O.
2. The process for producing the synthetic slag for the aluminum killed steel direct slag washing desulfurization process as claimed in claim 1, which comprises the following steps;
step 1: weighing the materials according to a certain proportion, and then putting the materials into a forced stirrer to stir for 3-5 min;
step 2: putting the material in the step 1 into a ball press machine to be pressed into spherical particles, and then screening the spherical particles by a vibrating screen to obtain a proper spherical finished product, wherein a screen plate is 1-40 mm;
and step 3: and (3) feeding the material balls in the step (2) into a drying device for drying, wherein the drying temperature is 200-300 ℃, and the duration is 10-30min. And continuously feeding the dried material into a vibrating screen for screening to obtain a finished product with the thickness of 0.5-40 mm.
3. The production device of the synthetic slag for the aluminum killed steel straight slag-feeding washing desulfurization process, according to claim 1, is characterized by comprising a frame (1), a stirring mechanism (2), a drying mechanism (3), a ball pressing mechanism (4) and a driving mechanism (5), wherein the stirring mechanism (2) is installed at the top end of the frame (1), the drying mechanism (3) is installed on the frame (1), the ball pressing mechanism (4) is installed at the outlet end of the drying mechanism (3), and the driving mechanism (5) is installed at the outer side of the ball pressing mechanism (4);
the stirring mechanism (2) comprises a stirring barrel (21), a mounting plate (22), a stirring motor (23), a central stirring shaft (24), a spiral stirring shaft (25), an annular seat (26), a fixing rod (27), a transmission assembly (28) and a material pump (29), wherein the stirring barrel (21) is fixedly mounted at the top of the frame (1), the mounting plate (22) is fixedly mounted at the top of the stirring barrel (21), the stirring motor (23) is fixedly mounted at the top of the mounting plate (22), the central stirring shaft (24) is rotatably mounted at the inner side of the stirring barrel (21), an output shaft of the stirring motor (23) is fixedly connected with the central stirring shaft (24), the number of the spiral stirring shafts (25) is a plurality of, and the spiral stirring shafts (25) are uniformly distributed around the central stirring shaft (24) and are uniformly rotatably mounted at the inner side of the stirring barrel (21), the top ends of the spiral stirring shafts (25) are rotatably connected with the annular seat (26), one end of the fixed rod (27) is fixedly arranged on the outer edge of the annular seat (26), the other end of the fixed rod (27) is fixedly connected with the inner wall of the stirring barrel (21), the material pump (29) is fixedly arranged on the outer side of the stirring barrel (21), and the inlet end of the material pump (29) is communicated with the inside of the stirring barrel (21); the transmission assembly (28) comprises a first gear (281) and a second gear (282), the first gear (281) is fixedly arranged at the bottom of the central stirring shaft (24), the number of the second gears (282) is the same as that of the spiral stirring shafts (25), a plurality of the second gears (282) are fixedly arranged at the bottom of the corresponding spiral stirring shafts (25), and a plurality of the second gears (282) are all meshed with the first gear (281);
the drying mechanism (3) comprises a drying box (31), a rotating roller (32), partition plates (33), arc-shaped drying lamps (34), a discharge port (35) and a material guide channel (36), the drying box (31) is fixedly installed on the rack (1), the outlet end of the material pump (29) is communicated with the inside of the drying box (31) through a guide pipe, the rotating roller (32) is rotatably installed inside the drying box (31), the number of the partition plates (33) is a plurality, the partition plates (33) are uniformly distributed around the drying box (31) and are fixedly installed on the outer side of the rotating roller (32), the arc-shaped drying lamps (34) are fixedly installed on the inner side of the drying box (31), the discharge port (35) is arranged at the bottom end of the drying box (31), and the material guide channel (36) is fixedly installed at the outlet end of the discharge port (35);
the ball pressing mechanism (4) comprises a ball pressing box (41), a ball pressing component (42), a cleaning component (43), a box door component (44), a discharging channel (45) and a sieve plate (46), the ball pressing box (41) is fixedly arranged at the bottom end of the material guide channel (36), the ball pressing component (42) is arranged inside the ball pressing box (41), the sieve plate (46) is fixedly arranged inside the ball pressing box (41), the discharging channel (45) is fixedly arranged at the bottom end of the ball pressing box (41), the cleaning component (43) is arranged on the sieve plate (46), and the box door component (44) is arranged at two ends of the sieve plate (46);
press ball subassembly (42) including fluted disc (421), sun gear (422), walking gear (423), central compression roller (424) and walking compression roller (425), the quantity of fluted disc (421) is two, two fluted disc (421) fixed mounting is at the both ends of pressing ball case (41) inboard respectively, the quantity of sun gear (422) is two, two sun gear (422) rotate respectively and install in corresponding fluted disc (421) are inboard, the quantity of walking gear (423) is a plurality of, a plurality of walking gear (423) evenly distributed is in corresponding fluted disc (421), and a plurality of walking gear (423) are located between the inner tooth wall of fluted disc (421) and sun gear (422), and all mesh with both, central compression roller (424) fixed mounting is between two sun gear (422), the quantity of walking compression roller (425) is a plurality of, And is fixedly connected with the corresponding walking gear (423);
the cleaning assembly (43) comprises a reciprocating screw rod (431), a moving seat (432), guide rods (433), buckets (434) and a fixed rack (435), wherein the reciprocating screw rod (431) is rotatably installed inside a ball pressing box (41), the moving seat (432) is installed on the reciprocating screw rod (431) in a threaded manner, the guide rods (433) are fixedly installed inside the ball pressing box (41), the guide rods (433) penetrate through the moving seat (432) and are in sliding connection with the moving seat (432), the number of the buckets (434) is two, the two buckets (434) are respectively and fixedly installed at two ends of the moving seat (432), and the fixed rack (435) is fixedly installed at the bottom of the moving seat (432);
the box door assembly (44) comprises a mounting groove (441), a third gear (442), a sliding rack (443), a fourth gear (444), a box door (445) and a fixture block (446), wherein the mounting groove (441) is formed inside the ball pressing box (41), the third gear (442) is rotatably mounted at one end of the mounting groove (441), the sliding rack (443) is slidably mounted in the mounting groove (441), one end of the sliding rack (443) can be meshed with the third gear (442), the fourth gear (444) is rotatably mounted at the other end of the mounting groove (441), the other end of the sliding rack (443) can be meshed with the fourth gear (444), the box door (445) and the fourth gear (444) are coaxially and fixedly connected, and the fixture block (446) is fixedly mounted at the inner side of the box door (445);
the driving mechanism (5) comprises a driving motor (51), a first belt wheel (52), a second belt wheel (53), a third belt wheel (54), a fourth belt wheel (55), a fifth belt wheel (56) and a sixth belt wheel (57), the driving motor (51) is fixedly installed on the outer side of the ball pressing box (41), an output shaft of the driving motor (51) is fixedly connected with the first belt wheel (52) and the third belt wheel (54), the second belt wheel (53) is coaxially and fixedly connected with the rotating roller (32), the first belt wheel (52) is in transmission connection with the second belt wheel (53) through a belt, the fourth belt wheel (55) is coaxially and fixedly connected with the central pressing roller (424), the second belt wheel (53) is in transmission connection with the fourth belt wheel (55), the fifth belt wheel (56) is in coaxial and fixed connection with the fourth belt wheel (55), and the sixth belt wheel (57) is fixedly connected with the end part of the reciprocating screw rod (431), the sixth belt wheel (57) is in transmission connection with the sixth belt wheel (57) through a belt.
4. The apparatus for producing the synthetic slag for the aluminum killed steel straight slag washing desulfurization process as claimed in claim 3, wherein a plurality of said walking pressing rollers (425) are attached to the central pressing roller (424) and can slide along the central pressing roller (424), so as to press the material into balls uniformly.
5. The production device of the synthetic slag for the aluminum killed steel straight slag washing and desulfurizing process as claimed in claim 3, wherein the number of the guide rods (433) is two, and the two guide rods (433) are respectively located at two ends of the movable base (432).
6. The apparatus for producing synthetic slag for aluminum killed steel direct slag washing desulfurization process as claimed in claim 3, wherein the ground of said two scoops (434) can contact with the top surface of the screen plate (46) and slide along the top surface of the screen plate (46), thereby cleaning the material on the top surface of the screen plate (46) and avoiding the screen plate (46) from being blocked.
7. The production device of the synthetic slag for the aluminum killed steel straight slag washing desulfurization process as claimed in claim 3, wherein the outer side of the ball pressing box (41) is provided with a clamping groove matched with the clamping block (446), and the clamping block (446) can be in sealing fit with the corresponding clamping groove.
8. The apparatus for producing the synthetic slag for the aluminum killed steel straight upward slag washing desulfurization process as claimed in claim 3, wherein the number of the walking gears (423) is four, and the four walking gears (423) can roll along the central gear (422), so that the four walking press rollers (425) roll along the central press roller (424).
9. The apparatus for producing synthetic slag for aluminum killed steel direct slag washing desulfurization process as claimed in claim 3, wherein the thread directions of both ends of said reciprocating screw rod (431) are different, and said movable base (432) can reciprocate along said reciprocating screw rod (431).
10. The apparatus for producing the synthetic slag for the aluminum killed steel direct slag washing desulfurization process as claimed in claim 3, wherein a material recycling bin is arranged at the position of the box door (445), and the material recycling bin is used for collecting the material cleaned by the bucket (434).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110677170.3A CN113416815A (en) | 2021-06-18 | 2021-06-18 | Synthetic slag for aluminum killed steel direct slag-feeding washing desulfurization process and production process and equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110677170.3A CN113416815A (en) | 2021-06-18 | 2021-06-18 | Synthetic slag for aluminum killed steel direct slag-feeding washing desulfurization process and production process and equipment thereof |
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| CN113416815A true CN113416815A (en) | 2021-09-21 |
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| CN (1) | CN113416815A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497934A (en) * | 2009-03-12 | 2009-08-05 | 浙江杭美炉料制造有限公司 | Heating slag washing material for converter steel melting, preparation and use method thereof |
| CN102071279A (en) * | 2010-12-21 | 2011-05-25 | 沈阳东大材料先进制备技术工程研究中心 | Slag washing material for converter process production aluminum killed steel and preparation method thereof |
| CN102719665A (en) * | 2012-07-03 | 2012-10-10 | 唐山东方建工集团有限公司 | Process method and equipment for producing slag-forming agent for making steel by utilizing steel making sludge |
| CN104630462A (en) * | 2015-02-28 | 2015-05-20 | 北京辰兴旭光环保技术有限公司 | Steelmaking sludge drying ball pressing system and ball pressing method |
| CN105132630A (en) * | 2015-09-24 | 2015-12-09 | 河南通宇冶材集团有限公司 | Compound slag cleaning agent for electric furnaces and converters and preparation method thereof |
| CN112280975A (en) * | 2020-11-04 | 2021-01-29 | 韶关市曲江盛大冶金渣环保科技开发有限公司 | Method and device for pressing powder balls under screen of rotary hearth furnace |
| CN112322838A (en) * | 2020-11-14 | 2021-02-05 | 河南通宇冶材集团有限公司 | Anti-pulverization production process of synthetic slag lotion |
-
2021
- 2021-06-18 CN CN202110677170.3A patent/CN113416815A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497934A (en) * | 2009-03-12 | 2009-08-05 | 浙江杭美炉料制造有限公司 | Heating slag washing material for converter steel melting, preparation and use method thereof |
| CN102071279A (en) * | 2010-12-21 | 2011-05-25 | 沈阳东大材料先进制备技术工程研究中心 | Slag washing material for converter process production aluminum killed steel and preparation method thereof |
| CN102719665A (en) * | 2012-07-03 | 2012-10-10 | 唐山东方建工集团有限公司 | Process method and equipment for producing slag-forming agent for making steel by utilizing steel making sludge |
| CN104630462A (en) * | 2015-02-28 | 2015-05-20 | 北京辰兴旭光环保技术有限公司 | Steelmaking sludge drying ball pressing system and ball pressing method |
| CN105132630A (en) * | 2015-09-24 | 2015-12-09 | 河南通宇冶材集团有限公司 | Compound slag cleaning agent for electric furnaces and converters and preparation method thereof |
| CN112280975A (en) * | 2020-11-04 | 2021-01-29 | 韶关市曲江盛大冶金渣环保科技开发有限公司 | Method and device for pressing powder balls under screen of rotary hearth furnace |
| CN112322838A (en) * | 2020-11-14 | 2021-02-05 | 河南通宇冶材集团有限公司 | Anti-pulverization production process of synthetic slag lotion |
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Application publication date: 20210921 |