CN105710360B - A kind of production technology of drainage agent - Google Patents
A kind of production technology of drainage agent Download PDFInfo
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- CN105710360B CN105710360B CN201610244255.1A CN201610244255A CN105710360B CN 105710360 B CN105710360 B CN 105710360B CN 201610244255 A CN201610244255 A CN 201610244255A CN 105710360 B CN105710360 B CN 105710360B
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- 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
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- 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
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- Mechanical Engineering (AREA)
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Abstract
The present invention provides a kind of production technologies of drainage agent, 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, and first various raw materials are dried in roller a heatable brick bed, then utilize air-cooled cooling, it is delivered in corresponding feed bin, adds carbon according to formulation ratio automatic blanking, be uniformly mixed in agitator tank is closed, 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 reduces influence of the human factor to product quality, while is also easy to produce the link of dust in roller a heatable brick bed and closing agitator tank and is both provided with cleaner, it is collected and removes with the dust to generation, dust pollution is reduced, improves environmental protection standard, realizes cleaning, efficiently production.
Description
Technical field
The invention belongs to metal smelt technical fields, and in particular to a kind of production technology of drainage agent.
Background technology
Steel ladle drainage agent belongs to a kind of amorphous refractory, adds in ladle upper nozzle, the process of pouring is unwrapped in continuous casting steel
In can automatic casting, make 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 raw material used such as prices 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 using artificial mixed raw material mostly, and then plus water is with carbon, is then carried using elevator
It is even dried into sand dryer using adobe kang, then natural cooling is packed, be put in storage.The worker that such technique needs is more, increases
Human cost and human factor also has a great impact to the stability of product, in addition such drying equipment be all using it is coal-fired come
Heat source is provided, efficiency of utilization is low, and environmental pollution is serious.
Invention content
The technical problems to be solved by the invention are in view of the deficiencies of the prior art, to provide a kind of production work of drainage agent
Skill significantly reduces the labor intensity of worker, and environmental protection standard is high, improves steel quality and effectively ensures the suitable of continuous casting process
Row.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of production technology of drainage agent, product
It is formulated as the chrome ore comprising 60 ~ 70 parts, 5 ~ 15 parts of alumina balls, 20 ~ 30 parts of Desert Sand and 1 ~ 5 part of properties modifier, institute
State the mixing that properties modifier is crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black arbitrary proportion；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；In Desert Sand
SiO2Content >=94%, grain size be 0.5 ~ 1.2mm；It 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
The ingredient of each raw material after screening, it is ensured that Cr in chrome ore2O3Content >=45%, SiO in Desert Sand2Content >=94%, then will symbol
Each feedstock delivery as defined in formula is closed 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 the feed bin storage specified by conveying device respectively, is indicated；
F, 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 crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black with the carbonaceous material that arbitrary proportion mixes by individual feed bin
To closing in agitator tank, control mixing time obtains finished product, closing agitator tank exit connection cyclonic separation in 10min for blanking
Deduster is 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 dries in a heatable brick bed, then using air-cooled cooling, is 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 reduce human factor to production
The influence of quality.
In general, the granularmetric composition of drainage agent 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, based on this, corresponding production technology must have 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 defined range, 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 to cool down, 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 with carbonaceous material, stir and evenly mix 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
The present invention is described in further detail below in conjunction with 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 embodiment
In order to enable those skilled in the art to preferably understand the present invention, below to being carried out with reference to attached drawing 1 to it
Specifically illustrate.
Refering to Fig. 1, the production technology of 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
Original moisture is by the rotating speed control of roller a heatable brick bed at 300 ~ 600 revs/min, and air inducing temperature is controlled at 150 ~ 250 DEG C, after making drying
Each raw material in biodiversity percentage composition ＜ 0.1%, when drying different material, need first by the raw material handling in roller a heatable brick bed
Totally, another raw material, the exit connection separation cyclone scrubber of the roller a heatable brick bed can be dried；
C, it is 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% and temperature≤200 DEG C in material；
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 the feed bin storage specified by conveying device respectively,
Mark, it is spare；
F, Microcomputerized dosing：Material rate in product formula according to 2 ~ 10 tons every time of production tonnage, is matched by microcomputer
Expect the quality of each material of system-computed, automatically control blanking and be delivered in closing agitator tank, it is desirable that each quality of production is missed
Poor ＜ 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, closing agitator tank exit connection separation cyclone scrubber in 10 ~ 30min
It 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, prepares continuous packaging；
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 formed to the present invention's
Limitation.
Embodiment one
Certain steel mill's steel ladle drainage agent, product formula be comprising 60 ~ 70 parts of chrome ore, 5 ~ 15 parts of alumina balls, 20 ~ 30 parts
Desert Sand and 1 ~ 5 part of properties modifier, the properties modifier arbitrarily compare for crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black
The mixing of example；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 drainage agent is produced using the production technology of 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 symbol
Each feedstock delivery as defined in formula is closed to baking material scene；B, belt conveyor is utilized respectively to be delivered in roller a heatable brick bed, using by
Gas generator generate coal gas burn in hot-blast stove offer hot wind dried, by the rotating speed control of roller a heatable brick bed in drying course
At 300 revs/min, air inducing temperature is controlled at 150 DEG C system, makes the biodiversity percentage composition ＜ 0.1% in each raw material after drying,
, 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 going out for roller a heatable brick bed
Separation cyclone scrubber is connected at mouthful, the dust generated in drying course is separated and collected, achievees the effect that dedusting；C, will
In each feedstock transportation to air-cooled roller a heatable brick bed after drying, carry out wind cooling temperature lowering, make it is air-cooled after each raw material in biodiversity hundred
Divide content ＜ 0.1% and temperature≤200 DEG C；D, inspection is sampled to each raw material after air-cooled, it is ensured that the mass distributary of each raw material
Measure percentage composition ＜ 0.1%；E, qualified each raw material will be examined to be delivered to the feed bin storage specified by conveying device respectively, into
Rower shows；F, 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 crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black with the carbonaceous material that arbitrary proportion mixes by individual bin blanking
To closing agitator tank, control mixing time obtains finished product, the connection cyclonic separation dedusting of closing agitator tank exit in 10min
Device is dusted；H, inspection is sampled to gained finished product, it is ensured that moisture content of finished products mass percentage ＜ 0.1%；I, promotion is utilized
Machine will examine qualified finished product to be delivered in high-order storage tank, prepare continuous packaging；J, according to packing instructions, every bag of metering is controlled
0.5kg/ bags of error ＜；K, it is packed using automatic packaging machine, 60 DEG C of the temperature ＜ in packaging process, the quality percentage of moisture
Content ＜ 0.1%；L, finally the warehousing finished products after packaging are preserved.
Embodiment two
Certain steel mill's steel ladle drainage agent, product formula be chromium sand 60 ~ 76%, the wherein Cr in chromium sand2O3Mass percentage
≥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, production stage and one phase of embodiment are produced using the production technology of drainage agent of the present invention
Together, unlike：Step B, in drying course, by the rotating speed control of roller a heatable brick bed at 450 revs/min, air inducing temperature is controlled 200
℃；Step G, by carbon black and crystalline flake graphite by individual bin blanking to closing in agitator tank, control mixing time in 20min,
Obtain 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, in drying course, 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 in agitator tank, control mixing time is obtained in 30min
Finished product.
Claims (1)
1. a kind of production technology of drainage agent, which is characterized in that the drainage agent 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 for crystalline flake graphite, in surpass
The mixing of carbon black and semi-reinforcing hydrocarbon black arbitrary proportion；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 for 0.5 ~
1.2mm；It 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
The ingredient of each raw material afterwards, it is ensured that Cr in chrome ore2O3Content >=45%, SiO in Desert Sand2Content >=94%, then will meet and match
Each feedstock delivery as defined in side is live to baking material；
B, it is utilized respectively belt conveyor raw material in formula is delivered in roller a heatable brick bed, utilizes the coal generated by gas generator
Gas burns in hot-blast stove to be provided hot wind and is dried, and is controlled the rotating speed of roller a heatable brick bed at 300 revs/min in drying course, air inducing
Temperature is controlled at 150 DEG C, makes the biodiversity percentage composition ＜ 0.1% in each raw material after drying, when drying different material,
Need to be first clean by the raw material handling in roller a heatable brick bed, another raw material can be dried, cyclonic separation is connected in the exit of roller a heatable brick bed
Deduster separates and collects the dust generated in drying course, 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 the feed bin storage specified by conveying device respectively, is indicated；
F, 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 of each raw material is calculated, automatically control blanking and is delivered in closing agitator tank, ensures each quality of production error ＜ 5kg；
G, by crystalline flake graphite, ntermediate super abrasion furnace (carbon) black and semi-reinforcing hydrocarbon black with the carbonaceous material that arbitrary proportion mixes by individual bin blanking
To closing agitator tank, control mixing time obtains finished product, the connection cyclonic separation dedusting of closing agitator tank exit in 10min
Device is dusted；
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, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244255.1A CN105710360B (en) | 2015-01-12 | 2015-01-12 | A kind of production technology of drainage agent |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244255.1A CN105710360B (en) | 2015-01-12 | 2015-01-12 | A kind of production technology of drainage agent |
| CN201510013460.2A CN104557090B (en) | 2015-01-12 | 2015-01-12 | A kind of production technique of steel ladle drainage agent |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510013460.2A Division CN104557090B (en) | 2015-01-12 | 2015-01-12 | A kind of production technique of steel ladle drainage agent |
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| CN105710360A CN105710360A (en) | 2016-06-29 |
| CN105710360B true CN105710360B (en) | 2018-06-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110329564A (en) * | 2019-07-23 | 2019-10-15 | 乌兰察布市西蒙鼎新技术开发有限公司 | A kind of anti-segregation production packing method of metal smelt stuffing sand |
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| CN1158772A (en) * | 1996-10-30 | 1997-09-10 | 刘德生 | Guiding agent for casting molten steel and its preparation |
| JPH09314314A (en) * | 1996-05-31 | 1997-12-09 | Nisshin Steel Co Ltd | Nozzle device for pouring molten metal in molten metal vessel and method for pouring molten metal |
| CN1382546A (en) * | 2002-03-05 | 2002-12-04 | 吴登来 | Draining ageng made of chromium |
| CN101543890A (en) * | 2008-03-28 | 2009-09-30 | 徐兆督 | Drainage agent for automatic steel-pouring of ladle in smelting process |
| CN102248155A (en) * | 2011-07-28 | 2011-11-23 | 西峡县隆达耐材有限责任公司 | Refining drainage agent and preparation method thereof |
| CN102746010A (en) * | 2012-07-25 | 2012-10-24 | 洛阳市科丰冶金新材料（集团）有限公司 | Chromium-aluminum steel ladle drainage sand |
| CN103506614A (en) * | 2013-10-17 | 2014-01-15 | 河南通宇冶材集团有限公司 | Drainage agent special for high manganese steel |
-
2015
- 2015-01-12 CN CN201610244255.1A patent/CN105710360B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314314A (en) * | 1996-05-31 | 1997-12-09 | Nisshin Steel Co Ltd | Nozzle device for pouring molten metal in molten metal vessel and method for pouring molten metal |
| CN1158772A (en) * | 1996-10-30 | 1997-09-10 | 刘德生 | Guiding agent for casting molten steel and its preparation |
| CN1382546A (en) * | 2002-03-05 | 2002-12-04 | 吴登来 | Draining ageng made of chromium |
| CN101543890A (en) * | 2008-03-28 | 2009-09-30 | 徐兆督 | Drainage agent for automatic steel-pouring of ladle in smelting process |
| CN102248155A (en) * | 2011-07-28 | 2011-11-23 | 西峡县隆达耐材有限责任公司 | Refining drainage agent and preparation method thereof |
| CN102746010A (en) * | 2012-07-25 | 2012-10-24 | 洛阳市科丰冶金新材料（集团）有限公司 | Chromium-aluminum steel ladle drainage sand |
| CN103506614A (en) * | 2013-10-17 | 2014-01-15 | 河南通宇冶材集团有限公司 | Drainage agent special for high manganese steel |
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| CN105710360A (en) | 2016-06-29 |
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