CN105798280B - A kind of drainage agent - Google Patents
A kind of drainage agent Download PDFInfo
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- CN105798280B CN105798280B CN201610234506.8A CN201610234506A CN105798280B CN 105798280 B CN105798280 B CN 105798280B CN 201610234506 A CN201610234506 A CN 201610234506A CN 105798280 B CN105798280 B CN 105798280B
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- raw material
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- brick bed
- heatable brick
- drying
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- 239000013051 drainage agent Substances 0.000 title claims description 21
- 239000002994 raw material Substances 0.000 claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 claims abstract description 30
- 239000011449 brick Substances 0.000 claims abstract description 26
- 238000004806 packaging method and process Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000003034 coal gas Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 19
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 6
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 6
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 6
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 6
- 239000001095 magnesium carbonate Substances 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012858 packaging process Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000012384 transportation and delivery Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 2
- 239000006004 Quartz sand Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 241001062472 Stokellia anisodon Species 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000006236 Super Abrasion Furnace Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000707825 Argyrosomus regius Species 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/44—Consumable closure means, i.e. closure means being used only once
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/12—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromium oxide
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/424—Carbon black
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The present invention provides a kind of drainage agents, belong to metal smelt technical field.The coal gas that the present invention uses gas generator to provide is burnt in hot-blast stove for heat source, first dries various raw materials in roller a heatable brick bed, then utilizes air-cooled cooling, it is delivered in corresponding feed bin, adds carbon according to formulation ratio automatic blanking, be uniformly mixed in closing agitator tank, then automatic packaging, storage.Integrated artistic of the present invention uses automatic production line, both the stabilization of product quality had been ensure that, reduce operating personnel's quantity again, human cost is reduced, while also significantly reducing influence of the human factor to product quality, while being also easy to produce the link of dust in roller a heatable brick bed and closing agitator tank and being both provided with cleaner, it is collected and removes with the dust to generation, dust pollution is reduced, environmental protection standard is improved, realizes cleaning, efficiently production.
Description
Technical field
The invention belongs to metal smelt technical fields, and in particular to a kind of drainage agent.
Background technology
Steel ladle drainage agent belongs to a kind of amorphous refractory, is added in ladle upper nozzle, the process of pouring is unwrapped in continuous casting steel
In can automatic casting, keep production process continuous and ensure whole process protection casting, be a kind of required refractory material.
Since steel excess capacity, iron and steel enterprise are in meagre profit even lossing state mostly in recent years, iron and steel enterprise is big
Width compresses the procurement price of crude fuel to increase profit margin, and steel ladle drainage agent is as a kind of required refractory material, buying
Price persistently reduces, and the prices such as raw material used such as imported from South Africa chrome ore are climbing up and up, in order to promote profit margin,
Cost must be reduced in intermediate production link, therefore it is extremely urgent to improve production technology reduction process cost.In addition, state's inner ring
Conformal gesture is increasingly severe, and original production technology has been unable to meet higher and higher environmental requirement, using a kind of high-environmental standard
Production technology it is imperative.Existing steel ladle drainage agent is to use artificial mixed raw material mostly, and then plus water matches carbon, then adopts
It is carried into sand dryer with elevator and even being dried using adobe kang, then natural cooling is packed, be put in storage.The work that such technique needs
People is more, increases human cost and human factor also has a great impact to the stability of product, and such drying equipment is all in addition
It is to provide heat source using fire coal, efficiency of utilization is low, and environmental pollution is serious.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of drainage agent, mitigate significantly
The labor intensity of worker, environmental protection standard is high, improves steel quality and effectively ensures the direct motion of continuous casting process.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of drainage agent, by following raw materials according system
At：Its percent mass proportioning is as follows：Chromium sand 50~80%, crystobalite sand 10~30%, fused magnesite 8~20%, each raw material grain
Degree control is in claimed range；
Production technology carries out in the steps below：
A, according to the granularity requirements of raw material in product formula, chrome ore and Desert Sand are sized to corresponding grade respectively, measured
Then the ingredient of each raw material after screening will meet each feedstock delivery as defined in formula to baking material scene；
B, it is utilized respectively belt conveyor to be delivered in roller a heatable brick bed, using the coal gas generated by gas generator in hot wind
Burning provides hot wind and is dried in stove, controls the rotating speed of roller a heatable brick bed at 300 revs/min in drying course, air inducing temperature controls
At 150 DEG C, make the biodiversity percentage composition ＜ 0.1% in each raw material after drying, it, need to be first by rolling when drying different material
Raw material handling in cylinder a heatable brick bed is clean, can dry another raw material, and separation cyclone scrubber is connected in the exit of roller a heatable brick bed, right
The dust generated in drying course is separated and collected, and achievees the effect that dedusting；
C, by each feedstock transportation after drying to air-cooled roller a heatable brick bed, carry out wind cooling temperature lowering, make it is air-cooled after each raw material in
Biodiversity percentage composition ＜ 0.1% and temperature≤200 DEG C；
D, inspection is sampled to each raw material after air-cooled, it is ensured that the biodiversity percentage composition ＜ 0.1% of each raw material；
E, qualified each raw material will be examined to be delivered to specified feed bin by conveying device respectively to store, is indicated；
F, according to the material rate in product formula, according to every time 2,5,8 or 10 tons of production tonnage, by Microcomputerized dosing system
Statistics calculates the quality of each raw material, automatically controls blanking and is delivered in closing agitator tank, ensures each quality of production error ＜
5kg；
G, by fused magnesite by individual bin blanking to closing agitator tank, control mixing time is obtained into 30min
Product, closing agitator tank exit connection separation cyclone scrubber are dusted；
H, inspection is sampled to gained finished product, it is ensured that moisture content of finished products mass percentage ＜ 0.1%；I, elevator is utilized
Qualified finished product will be examined to be delivered in high-order storage tank, prepare continuous packaging；
J, according to packing instructions, every bag of 0.5kg/ bags of measurement error ＜ is controlled；
K, it is packed using automatic packaging machine, 60 DEG C of the temperature ＜ in packaging process, the mass percentage ＜ of moisture
0.1%；
L, finally the warehousing finished products after packaging are preserved.
Beneficial effects of the present invention are as follows：
The coal gas that the present invention uses gas generator to provide is burnt in hot-blast stove for heat source, first by various raw materials in roller
It is dried in a heatable brick bed, then utilizes air-cooled cooling, be delivered in corresponding feed bin, add carbon according to formulation ratio automatic blanking, closing
It is uniformly mixed in agitator tank, then automatic packaging, storage.Integrated artistic of the present invention uses automatic production line, both ensure that production
The stabilization of quality, and reduce operating personnel's quantity, human cost is reduced, while also significantly reducing human factor to production
The influence of quality.
In general, the granularmetric composition of stuffing sand has a great impact to sintering character, dilatancy of the drainage agent in the mouth of a river, into
And self-opening rate is influenced, it is based on this, corresponding production technology there must be stock, that is, crush and/or sieve link, and raw material is made to be in regulation
Grade.Secondly, the moisture in drainage agent must be strict controlled in the range of regulation, and initial feed moisture is higher,
It needs to carry out drying and processing.After drying, since temperature is higher, it is not suitable for direct batch mixing, needs further cooling, in order to reduce water
That divides brings into, and the present invention is handled by the way of air-cooled, while the stringent content for controlling moisture in raw material.Original after air-cooled
After material carries out automatic gauge, then match carbonaceous material, stirs and evenly mixs to get finished product.The present invention provides heat source, heat using gas-fired
Utilization ratio is high, reduces exhaust gas discharge, while the link for being also easy to produce in roller a heatable brick bed and closing agitator tank dust is both provided with and removes
Dirt equipment is collected and is removed with the dust to generation, is reduced dust pollution, is improved environmental protection standard, realize cleaning, height
Effect production.
Description of the drawings
Present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1：The technological process of production schematic diagram of the present invention；
Wherein, A- coal gas, B- hot winds, C, D- conveying device, E- elevators.
Specific implementation mode
In order to enable those skilled in the art to preferably understand the present invention, below to being carried out to it in conjunction with attached drawing 1
Specifically illustrate.Refering to fig. 1, the production technology of steel ladle drainage agent of the present invention can carry out in the steps below：
A, it stocks up：It, then will be each after screening by satisfactory each material screening to corresponding grade according to production requirement
Raw material as required measured by ratio, by the various feedstock deliveries measured to baking material scene；
B, it dries：The above-mentioned each raw material for being transported to baking material scene is utilized respectively conveying device to be delivered in roller a heatable brick bed, profit
It is burnt in hot-blast stove with the coal gas generated by gas generator and hot wind is provided is dried, according to each raw material in drying course
By the rotating speed control of roller a heatable brick bed at 300~600 revs/min, air inducing temperature is controlled at 150~250 DEG C original moisture, makes drying
Biodiversity percentage composition ＜ 0.1% in each raw material afterwards is needed first that the raw material in roller a heatable brick bed is clear when drying different material
Reason is clean, can dry another raw material, and the exit of the roller a heatable brick bed connects separation cyclone scrubber；
C, air-cooled：By in each feedstock transportation after drying to air-cooled roller a heatable brick bed, carry out wind cooling temperature lowering, make it is air-cooled after each original
Biodiversity percentage composition ＜ 0.1% in material and temperature≤200 DEG C；
D, the examination of materials：According to routine inspection method sampling inspection it is above-mentioned it is air-cooled after each raw material, it is ensured that the water of each raw material
Divide mass percentage ＜ 0.1%；
E, feeding：Each acceptable material after air-cooled is delivered to specified feed bin by conveying device respectively to store,
Mark, it is spare；
F, Microcomputerized dosing：According to the material rate in product formula, according to 2~10 tons every time of production tonnage, by microcomputer
Feed proportioning system calculates the quality of each material, automatically controls blanking and is delivered in closing agitator tank, it is desirable that each quality of production
Error ＜ 5kg；
G, it stirs：By carbonaceous materials such as carbon black, crystalline flake graphites by individual bin blanking to closing in agitator tank, according to production
Quality requirement, control mixing time obtain finished product in 10~30min, and closing agitator tank exit connects cyclonic separation dedusting
Device is dusted；
H, product inspection：According to finished product obtained by routine inspection method sampling inspection, it is ensured that the mass percentage ＜ of moisture
0.1%；
I, it conveys：Finished product is delivered to by elevator in high-order storage tank, continuous packaging is prepared；
J, it measures：According to packing instructions, every bag of 0.5kg/ bags of measurement error ＜ is controlled；
K, it packs：It is packed according to customer requirement, and using automatic packaging machine, packaging process will ensure temperature ＜ 60
DEG C, the mass percentage ＜ 0.1% of moisture；
L, it is put in storage：Warehousing finished products after packaging are preserved.
In order to which the present invention is furture elucidated in more detail, the following example is provided, but these are not constituted to the present invention's
Limitation.
Embodiment one
Certain steel mill's ladle draining sand, product formula be comprising 60~70 parts of chrome ore, 5~15 parts of alumina balls, 20~
30 parts of Desert Sand and 1~5 part of properties modifier, the properties modifier are crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black
The mixing of arbitrary proportion；Wherein, Cr in chrome ore2O3Content >=45%, grain size is 0.2~0.9mm, and 80 mesh≤3%, 20 mesh
≤ 2%, moisture content≤0.5%, weight percentage；SiO in Desert Sand2Content >=94%, grain size be 0.5~1.2mm.
Above-mentioned steel ladle drainage agent is produced using the production technology of steel ladle drainage agent of the present invention, can be carried out in the steps below：
A, according to the granularity requirements of raw material in product formula, chrome ore and Desert Sand are sized to corresponding grade respectively, measured
The ingredient of each raw material after screening, it is ensured that Cr in chrome ore2O3Content >=45%, SiO in Desert Sand2Content >=94%, then will
Meet each feedstock delivery as defined in formula to baking material scene；B, it is utilized respectively belt conveyor to be delivered in roller a heatable brick bed, utilize
By gas generator generate coal gas burn in hot-blast stove offer hot wind dried, by the rotating speed of roller a heatable brick bed in drying course
At 300 revs/min, air inducing temperature is controlled at 150 DEG C, makes the biodiversity percentage composition ＜ in each raw material after drying for control
0.1%, need to be first clean by the raw material handling in roller a heatable brick bed when drying different material, another raw material can be dried, in roller
The exit of a heatable brick bed connects separation cyclone scrubber, is separated and collected to the dust generated in drying course, reaches the effect of dedusting
Fruit；C, by each feedstock transportation after drying to air-cooled roller a heatable brick bed, carry out wind cooling temperature lowering, make it is air-cooled after each raw material in moisture
Mass percentage ＜ 0.1% and temperature≤200 DEG C；D, inspection is sampled to each raw material after air-cooled, it is ensured that each raw material
Biodiversity percentage composition ＜ 0.1%；E, qualified each raw material will be examined to be delivered to specified feed bin by conveying device respectively
Storage, is indicated；F, according to the material rate in product formula, according to every time 2,5,8 or 10 tons of production tonnage, by microcomputer
Feed proportioning system calculates the quality of each raw material, automatically controls blanking and is delivered in closing agitator tank, ensures each quality of production
Error ＜ 5kg；G, the carbonaceous material for mixing crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black with arbitrary proportion is by individually expecting
In storehouse blanking to closing agitator tank, control mixing time obtains finished product, closing agitator tank exit connection whirlwind point in 10min
It is dusted from deduster；H, inspection is sampled to gained finished product, it is ensured that moisture content of finished products mass percentage ＜ 0.1%；I、
Qualified finished product will be examined to be delivered in high-order storage tank using elevator, prepares continuous packaging；J, according to packing instructions, control
Every bag of 0.5kg/ bags of measurement error ＜；K, it is packed using automatic packaging machine, 60 DEG C of the temperature ＜ in packaging process, moisture
Mass percentage ＜ 0.1%；L, finally the warehousing finished products after packaging are preserved.
Embodiment two
Certain steel mill's ladle draining sand, product formula are chromium sand 60~76%, the wherein Cr in chromium sand2O3Quality percentage contain
Amount >=45%；Sea sand 10~20%, alumina balls 4~9%, Desert Sand 4~9%, potassium feldspar 3~5%, carbon black 0.3~
0.8%, crystalline flake graphite 0.3~1.0%.Above-mentioned steel ladle drainage agent is produced using the production technology of steel ladle drainage agent of the present invention,
Production stage is identical as embodiment one, unlike：Step B, during the drying process, by the control of the rotating speed of roller a heatable brick bed 450 turns/
Point, air inducing temperature is controlled at 200 DEG C；Step G is extremely closed carbon black and crystalline flake graphite in agitator tank by individual bin blanking,
Mixing time is controlled in 20min, obtains finished product.
Embodiment three
Certain steel mill's steel ladle drainage agent is made of following raw materials according：Its percent mass proportioning is as follows：Chromium sand 50~80%, crystobalite
Sand 10~30%, fused magnesite 8~20%, each raw material granularity control is in claimed range.
Above-mentioned steel ladle drainage agent, production stage and embodiment one are produced using the production technology of steel ladle drainage agent of the present invention
It is identical, unlike：Step B, during the drying process, by the rotating speed control of roller a heatable brick bed at 300 revs/min, the control of air inducing temperature exists
150℃；Step G, by fused magnesite by individual bin blanking to closing agitator tank, control mixing time is obtained in 30min
Finished product.
Claims (1)
1. a kind of drainage agent preparation process, which is characterized in that the percent mass proportioning of the drainage agent is as follows：It is chromium sand 50 ~ 80%, white
Quartz sand 10 ~ 30%, fused magnesite 8 ~ 20%, each raw material granularity control is in claimed range；
Drainage agent preparation process carries out in the steps below：
A, according to the granularity requirements of raw material in product formula, chrome ore and Desert Sand are sized to corresponding grade, metering screening respectively
Then the ingredient of each raw material afterwards will meet each feedstock delivery as defined in formula to baking material scene；
B, it is utilized respectively belt conveyor to be delivered in roller a heatable brick bed, using the coal gas generated by gas generator in hot-blast stove
Burning provides hot wind and is dried, and controls the rotating speed of roller a heatable brick bed at 300 revs/min in drying course, air inducing temperature is controlled 150
DEG C, make the biodiversity percentage composition ＜ 0.1% in each raw material after drying, when drying different material, needing first will be in roller a heatable brick bed
Raw material handling it is clean, another raw material can be dried, roller a heatable brick bed exit connect separation cyclone scrubber, to drying
The dust generated in journey is separated and collected, and achievees the effect that dedusting；
C, by each feedstock transportation after drying to air-cooled roller a heatable brick bed, carry out wind cooling temperature lowering, make it is air-cooled after each raw material in water
Divide mass percentage ＜ 0.1% and temperature≤200 DEG C；
D, inspection is sampled to each raw material after air-cooled, it is ensured that the biodiversity percentage composition ＜ 0.1% of each raw material；
E, qualified each raw material will be examined to be delivered to specified feed bin by conveying device respectively to store, is indicated；
F, according to the material rate in product formula, according to every time 2,5,8 or 10 tons of production tonnage, by Microcomputer Burden System meter
The quality for calculating each raw material automatically controls blanking and is delivered in closing agitator tank, ensures each quality of production error ＜ 5kg；
G, by fused magnesite by individual bin blanking to closing agitator tank, control mixing time obtains finished product in 30min,
Connection separation cyclone scrubber in closing agitator tank exit is dusted；
H, inspection is sampled to gained finished product, it is ensured that moisture content of finished products mass percentage ＜ 0.1%；I, it will be examined using elevator
It tests qualified finished product to be delivered in high-order storage tank, prepares continuous packaging；
J, according to packing instructions, every bag of 0.5kg/ bags of measurement error ＜ is controlled；
K, it is packed using automatic packaging machine, 60 DEG C of the temperature ＜ in packaging process, the mass percentage ＜ 0.1% of moisture；
L, finally the warehousing finished products after packaging are preserved.
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| CN201510013460.2A CN104557090B (en) | 2015-01-12 | 2015-01-12 | A kind of production technique of steel ladle drainage agent |
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| CN109202055B (en) * | 2018-11-27 | 2020-05-26 | 河南通宇冶材集团有限公司 | High-quality special steel drainage agent and preparation method thereof |
| CN115959891B (en) * | 2022-12-24 | 2023-08-22 | 河南通宇冶材集团有限公司 | Fluorine-containing drainage agent |
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- 2015-01-12 CN CN201610238068.2A patent/CN105906350B/en active Active
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| JPS58167062A (en) * | 1982-03-26 | 1983-10-03 | Kurosaki Refract Co Ltd | Stuffing to be packed in sliding nozzle |
| JPH08300143A (en) * | 1995-04-27 | 1996-11-19 | Harima Ceramic Co Ltd | Stuffing for sliding nozzle hole |
| CN102233412A (en) * | 2011-06-27 | 2011-11-09 | 河南通宇冶材集团有限公司 | Carbon-free steel ladle drainage agent for extremely-low carbon steel |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105906350B (en) | 2018-05-11 |
| CN104557090B (en) | 2016-04-06 |
| CN105906350A (en) | 2016-08-31 |
| CN104557090A (en) | 2015-04-29 |
| CN105798280A (en) | 2016-07-27 |
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Inventor after: Wang Yongyuan Inventor after: Li Xiufeng Inventor after: Chen Shoujie Inventor after: Tang Hongbo Inventor before: Zhu Shijia Inventor before: Wang Yongyuan Inventor before: Li Xiufeng Inventor before: Zhang Guoling Inventor before: Chen Shoujie Inventor before: Tang Hongbo |
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Denomination of invention: A drainage agent Granted publication date: 20181012 Pledgee: Industrial and Commercial Bank of China Limited Xixia Branch Pledgor: HENAN TONGYU METALLURGY MATERIALS GROUP Co.,Ltd.|Henan Xuantong New Material Technology Co.,Ltd. Registration number: Y2024980042610 |