CN111961888A - Environment-friendly pollution-free silicon-manganese alloy smelting process - Google Patents
Environment-friendly pollution-free silicon-manganese alloy smelting process Download PDFInfo
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- CN111961888A CN111961888A CN202010797037.7A CN202010797037A CN111961888A CN 111961888 A CN111961888 A CN 111961888A CN 202010797037 A CN202010797037 A CN 202010797037A CN 111961888 A CN111961888 A CN 111961888A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
Abstract
The invention relates to an environment-friendly pollution-free silicon-manganese alloy smelting process, which comprises the following steps: step 1, putting a manganese-containing raw material into a furnace for smelting to obtain a liquid manganese mixture; step 2, putting the silicon-containing raw material into a furnace for smelting to obtain a liquid silicon mixture; step 3, weighing the liquid manganese mixture and the liquid silicon mixture, putting the weighed liquid manganese mixture and liquid silicon mixture into a furnace according to a ratio, and smelting to obtain a liquid silicon-manganese alloy; wherein, a parameter matrix F1(S0, M0, T, P) conforming to the smelting of the silicon-manganese alloy is set in the device, and the four parameters are measured and obtained in real time through the control system; and a standard matrix F2(A, B, A0, B0) of the silicon-manganese alloy is also set in the control system, during the smelting process in the furnace, parameters of the standard matrix measured in real time are compared with a smelting parameter rectangle, and the silicon content and the manganese content in the silicon-manganese alloy are within a set range according to a comparison result so as to adjust the content meeting the requirements of the silicon-manganese alloy.
Description
Technical Field
The invention relates to the technical field of smelting, in particular to an environment-friendly pollution-free silicon-manganese alloy smelting process.
Background
In the process of producing and smelting silicomanganese, a certain amount of dolomite or limestone is added according to the raw material proportion to adjust the alkalinity, so that the fluidity of slag is increased, but in the processing process, due to different silicon content components in ferrosilicon and industrial silicon and different manganese content in manganese ore, the proportion of smelting and the content of silicon and manganese in smelted silicomanganese alloy can not be determined and meet the requirements, the existing process can not recycle silicomanganese slag, can not realize energy recycling, can not increase the recycling rate of resources, can not realize green environmental protection, and the environment-friendly and pollution-free silicomanganese alloy smelting process capable of controlling the silicomanganese content is required to be designed.
Disclosure of Invention
Therefore, the invention provides an environment-friendly pollution-free silicon-manganese alloy smelting process, which is used for overcoming the problems that the silicon-manganese content in the silicon-manganese alloy can not be determined and the smelting is environment-friendly in the prior art.
In order to achieve the purpose, the invention provides an environment-friendly pollution-free silicon-manganese alloy smelting process, which comprises the following steps:
in the step 1, raw materials containing manganese comprise manganese ores and manganese-rich slag, and the manganese ores and the manganese-rich slag are mixed in proportion; in the step 2, the raw material containing silicon comprises silica and ferrosilicon, and the silica and the ferrosilicon are mixed according to a proportion; in the step 3, the furnace comprises a control system, wherein a parameter matrix F1(S0, M0, T, P) conforming to silicon-manganese alloy smelting is set in the control system, wherein the content of the liquid silicon mixture put into the furnace is set to be S0, and the content of the liquid manganese mixture put into the furnace is set to be M0; setting the real-time temperature in the furnace as T, setting the real-time pressure in the furnace as P, and measuring and acquiring the four parameters in real time through the control system;
a standard matrix F2(A, B, A0, B0) of the silicon-manganese alloy is set in the control system, wherein the content of silicon in the liquid silicon-manganese alloy is set to be A, the content of manganese in the liquid silicon-manganese alloy is set to be B, the error of the content of silicon in the liquid silicon-manganese alloy is set to be A0, and the error of the content of manganese in the liquid silicon-manganese alloy is set to be B0;
setting an adjusting matrix F3(S11, M11, TO, P0, NT, NP) in the control system, wherein the content of the liquid silicon mixture added each time is set as S11, the content of the liquid manganese mixture added each time is set as M11, the degree of upward adjustment of the furnace temperature increased each time is set as TO, the pressure in the furnace increased each time is set as P0, the highest temperature in the furnace is set as TM, the highest pressure in the furnace is set as PM, and NT is set as the number of temperature adjustment; NP is the pressure regulation times;
and in the smelting process in the furnace, comparing the parameters of the standard matrix with the smelting parameter rectangle, and adjusting the silicon content and the manganese content in the silicon-manganese alloy within a set range according to the comparison result and the adjusting mode of the adjusting matrix so as to adjust the content meeting the requirements of the silicon-manganese alloy.
Further, the content of silicon in the silicon-manganese alloy in the standard matrix A11 is less than A + A0 and greater than A-A0.
Further, the content of manganese B11 in the silicon-manganese alloy in the standard matrix is less than B + B0 and greater than B-B0.
Further, the content of silicon in the liquid silicon-manganese alloy is set to be A11, and if the content A11 of the silicon in the liquid silicon-manganese alloy measured in real time is smaller than A + A0 and the content A11 of the silicon in the liquid silicon-manganese alloy measured in real time is larger than A-A0, the control system does not need to adjust the content of the silicon in the liquid silicon-manganese alloy.
Further, if the content A11 of silicon in the silicon-manganese alloy measured in real time is less than A-A0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T1, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T1 is (TM) and TM-T1 is (TM) 0, NT1 is preset TO be the number of times that T1 increases TO TO TM each time, wherein NT1 is (TM-T1)/T0, if NT1 is (NT) 1, the highest temperature adjusting number is adjusted according TO NT1, the highest temperature in the furnace is T1+ NT 1T 0, if NT1 is (NT 1), the highest temperature adjusting number is adjusted according TO NT1, and the highest temperature in the furnace is T1+ NT 1T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P1< PM and PM-P1> P0, presetting NP1 as the number of times that P1 increases PO to PM every time, wherein NP1 is (PM-P1)/P0, if NP1> NP 23, the highest pressure regulating number is regulated according to NP1, so that the pressure in the furnace is up to P1+ NP 1P 0, and if NP1< NP1, the highest pressure regulating number is regulated according to NP1, so that the pressure in the furnace is up to P1+ NP 1P 0;
the highest number of times that the control system adds the content S11 of the liquid silicon mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of the liquid silicon mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the content A11 of silicon in the silicon-manganese alloy in real time in the process of each adjustment time, if the content A11 of the silicon in the silicon-manganese alloy is still smaller than A-AO, the adjustment times are increased until the control system detects the content A11 of the silicon in the silicon-manganese alloy in real time, and when the content A11 is larger than A-A0 and smaller than A + A0, the adjustment process is stopped.
Further, if the content A11 of silicon in the silicon-manganese alloy measured in real time is greater than A + A0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T2, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T2 is (TM) and TM-T2 is (TM) 0, NT2 is preset TO be the number of times that T2 increases TO TO TM each time, wherein NT2 is (TM-T2)/T0, if NT2 is (NT) 2, the highest temperature adjusting number is adjusted according TO NT2, the highest temperature in the furnace is T2+ NT 2T 0, if NT2 is (NT 2), the highest temperature adjusting number is adjusted according TO NT2, and the highest temperature in the furnace is T2+ NT 2T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P2< PM and PM-P2> P0, presetting NP2 as the number of times that P2 increases PO to PM every time, wherein NP2 is (PM-P2)/P0, if NP2> NP 23, the highest pressure regulating number is regulated according to NP2, so that the pressure in the furnace is up to P2+ NP 2P 0, and if NP2< NP2, the highest pressure regulating number is regulated according to NP2, so that the pressure in the furnace is up to P2+ NP 2P 0;
the highest number of times that the control system adds the content M11 of the liquid manganese mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of a liquid manganese mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the content A11 of silicon in the silicon-manganese alloy in real time in the process of each adjustment time, if the content A11 of the silicon in the silicon-manganese alloy is still greater than A + AO, the adjustment times are increased until the control system detects the content A11 of the silicon in the silicon-manganese alloy in real time, and when the content A11 is greater than A-A0 and less than A + A0, the adjustment process is stopped.
Further, the manganese content in the liquid silicon-manganese alloy is set to be B11, and if the manganese content B11 in the liquid silicon-manganese alloy is smaller than B + B0 and the manganese content B11 in the liquid silicon-manganese alloy is larger than B-B0, the control system does not need to adjust the manganese content in the liquid silicon-manganese alloy.
Further, if the content B11 of manganese in the silicon-manganese alloy measured in real time is less than B-B0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T3, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T3 is (TM) and TM-T3 is (TM) 0, NT3 is preset TO be the number of times that T3 increases TO TO TM each time, wherein NT3 is (TM-T3)/T0, if NT3 is (NT) 3, the highest temperature adjusting number is adjusted according TO NT3, the highest temperature in the furnace is T3+ NT 3T 0, if NT3 is (NT 3), the highest temperature adjusting number is adjusted according TO NT3, and the highest temperature in the furnace is T3+ NT 3T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P3< PM and PM-P3> P0, presetting NP3 as the number of times that P3 increases PO to PM every time, wherein NP3 is (PM-P3)/P0, if NP3> NP 23, the highest pressure regulating number is regulated according to NP3, so that the pressure in the furnace is up to P3+ NP 3P 0, and if NP3< NP3, the highest pressure regulating number is regulated according to NP3, so that the pressure in the furnace is up to P3+ NP 3P 0;
the highest number of times that the control system adds the content M11 of the liquid manganese mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of a liquid manganese mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the manganese content B11 in the silicon-manganese alloy in real time in the process of each adjustment time, if the silicon content B11 in the silicon-manganese alloy is still less than B-B0, the adjustment times are increased until the control system detects the silicon content B11 in the silicon-manganese alloy in real time, and when the content of B11 is greater than B-B0 and less than B + B0, the adjustment process is stopped.
Further, if the content B11 of manganese in the silicon-manganese alloy measured in real time is greater than B + B0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T4, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T4 is (TM) and TM-T4 is (TM) 0, NT4 is preset TO be the number of times that T4 increases TO TO TM each time, wherein NT4 is (TM-T4)/T0, if NT4 is (NT) 4, the highest temperature adjusting number is adjusted according TO NT4, the highest temperature in the furnace is T4+ NT 4T 0, if NT4 is (NT 4), the highest temperature adjusting number is adjusted according TO NT4, and the highest temperature in the furnace is T4+ NT 4T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P4< PM and PM-P4> P0, presetting NP4 as the number of times that P4 increases PO to PM every time, wherein NP4 is (PM-P4)/P0, if NP4> NP 23, the highest pressure regulating number is regulated according to NP4, so that the pressure in the furnace is up to P4+ NP 4P 0, and if NP4< NP4, the highest pressure regulating number is regulated according to NP4, so that the pressure in the furnace is up to P4+ NP 4P 0;
the highest times of adding the content S11 of the liquid silicon mixture into the furnace by the control system are the highest values of the temperature adjustment times and the pressure adjustment times;
the control system controls the content of the liquid silicon mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the manganese content B11 in the silicon-manganese alloy in real time in the process of each adjustment time, if the silicon content B11 in the silicon-manganese alloy is still larger than B + B0, the adjustment times are increased until the control system detects the silicon content B11 in the silicon-manganese alloy in real time, and when the content of B11 is larger than B-B0 and smaller than B + B0, the adjustment process is stopped.
Further, the control system adjusts the liquid silicon mixture and the liquid manganese mixture added in the furnace and controls the adjustment times of the temperature and the pressure in the furnace by detecting the temperature, the pressure, the content of silicon and the content of manganese in the silicon-manganese alloy in real time, according to the required content of silicon and the content of manganese in the silicon-manganese alloy, so that the content of silicon A11 in the silicon-manganese alloy is greater than A-A0 and less than A + A0, and the content of manganese B11 in the silicon-manganese alloy is greater than B-B0 and less than B + B0, thereby completing the smelting process;
or when the times of adjusting the parameters of the adjusting matrix reach the maximum times, the content A11 of silicon in the silicon-manganese alloy and the content B11 of manganese in the silicon-manganese alloy are still not in the required content range of silicon and manganese in the silicon-manganese alloy, and the control system stops the adjusting process.
Compared with the prior art, the invention has the beneficial effects that the invention relates to an environment-friendly pollution-free silicon-manganese alloy smelting process, which has the characteristics of low energy consumption and high yield, and silicon-manganese alloys with different silicon-manganese contents are obtained by adjusting a control system in a specific process flow compared with the traditional high-silicon-manganese alloy smelting process.
Furthermore, the invention provides a control system capable of adjusting the silicon content and the manganese content in different silicon-manganese alloys according to different use occasions of the silicon-manganese alloys, and the temperature and the pressure in the smelting process and smelting raw materials are controlled through different content requirements and error values of different silicon-manganese alloys in different occasions, so that the required content of the silicon-manganese alloys is accurately controlled.
In particular, the method comprises the steps of setting a standard matrix F2(A, B, A0, B0) of the silicon-manganese alloy, wherein the content of silicon in the liquid silicon-manganese alloy is set to be A, the content of manganese in the liquid silicon-manganese alloy is set to be B, the error of the content of silicon in the liquid silicon-manganese alloy is set to be A0, and the error of the content of manganese in the liquid silicon-manganese alloy is set to be B0; setting a parameter matrix F1(S0, M0, T, P) conforming to the smelting of the silicon-manganese alloy by control, wherein the content of the liquid silicon mixture put into the furnace is set to be S0, and the content of the liquid manganese mixture put into the furnace is set to be M0; and setting the real-time temperature in the furnace as T and the real-time pressure in the furnace as P, and measuring and acquiring the four parameters in real time through the control system.
In particular, the content range of silicon in the silicon-manganese alloy is less than A + A0 and greater than A-A0, and the content range of manganese in the silicon-manganese alloy is less than B + B0 and greater than B-B0 by measuring the content of the silicon-manganese alloy in real time in the smelting process and then adjusting the data of the parameter matrix.
Further, the content of the liquid silicon mixture added each time is set TO be S11, the content of the liquid manganese mixture added each time is set TO be M11, the degree of upward adjustment of the temperature in the furnace increased each time is set TO be TO, the pressure in the furnace increased each time is set TO be P0, the highest temperature in the furnace is set TO be TM, the highest pressure in the furnace is set TO be PM, and if the content of silicon and the content of manganese in the silicon-manganese alloy are not in the error range of the standard matrix, the content of silicon and the content of manganese in the silicon-manganese alloy are adjusted by a control system so as TO be in the error range of the standard matrix.
Particularly, the invention also provides an adjusting matrix, the maximum adjustable times are calculated by an algorithm through comparing the real-time detected temperature, pressure and silicon content and manganese content in the silicon-manganese alloy with the highest temperature and pressure in the furnace, then different adjusting times of different parameters are ensured according to a method for detecting the silicon content and the manganese content in the silicon-manganese alloy in real time in the process of adjusting each parameter each time, and the required silicon content and manganese content in the silicon-manganese alloy are quickly adjusted by using the most reasonable method.
Furthermore, the slag produced by smelting in the invention can be used as raw materials for construction after being cooled, in the whole smelting process, a smoke hood for collecting smoke is arranged above the smelting furnace and used for collecting the smoke of the dust-containing electric furnace generated at high temperature in the electric furnace, delivering the flue gas with the temperature of 400 ℃ and the dust content of 4-6g/m' to a spark catcher through a pipeline, settling larger particle smoke dust, delivering the residual gas to a U-shaped tubular air cooler, cooling to 200 ℃, delivering the residual gas to a high-temperature filter material bag-type dust remover, discharging the dedusted flue gas into the atmosphere through a fan and a chimney, and the emission standard is less than 50mg/m', completely accords with the national emission standard, has more recycled dust, generally contains silicon dioxide fine particles, more than 90 percent of which can be used as excellent building materials, when the content of silica is further increased, the silica can be used as an excellent raw material for silica sol and silicone. Particularly, the furnace body can meet the temperature of central heating by recycling the waste heat of the circulating water of the electric furnace of the furnace body 1 in the heating engineering, so that the daily heating requirements of nearby residents can be met, and the environment-friendly and pollution-free smelting environment is provided by recycling the resources.
Drawings
FIG. 1 is a schematic structural diagram of the environment-friendly pollution-free silicon-manganese alloy smelting process.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the invention provides an environment-friendly and pollution-free silicon-manganese alloy smelting process, wherein the smelting furnace comprises a furnace body 1, a smelting tool, a feeding hole 2 arranged above the furnace body 1 and a discharging hole 3 arranged below the furnace body 1, and is used for feeding smelting raw materials into the furnace body 1 and discharging smelted products; the bottom outside the furnace body 1 is also provided with a support column 4 for supporting the furnace body 1; the bottom of the furnace body 1 is provided with a heating unit 5, and the heating unit 5 is used for heating the furnace body 1 to enable the furnace body 1 to reach the specified smelting temperature. The bottom of the furnace body 1 is also provided with a slag outlet 6, and the slag outlet 6 is used for discharging the slag in the smelting process. One side of the furnace body 1 is also provided with an air induction port 7, the other end of the air induction port 7 is connected with a bag-type dust remover 8, the top of the bag-type dust remover 8 is provided with a smoke outlet 9, and the bottom of the bag-type dust remover 8 is provided with a dust outlet 10. The furnace body 1 can be a submerged arc furnace or other furnaces, and the furnace 1 which can complete the smelting process is within the protection scope of the invention. The feeding hole 2 is used for placing smelting raw materials into the furnace body 1, the smelting raw materials are placed into the furnace body 1 according to a certain proportion each time, in the smelting process of the furnace body, a reasonable electric load mode is selected, the stability of the furnace condition in the furnace body 1 is maintained through the accurate regulation and control of a control system, and the smelting efficiency of the furnace body 1 is fully improved. The raw materials with accurate proportion are controlled to be injected into the furnace according to the smelting operation rules and conditions outside the furnace body 1, and the furnace burden is uniformly paved on the surface of the furnace. The included angle between a discharge port 3 of the furnace body 1 and the furnace body is 120 ℃, the silicon-manganese alloy smelted at high temperature is in a molten state, the smelted silicon-manganese alloy solution flows into a ladle through a tapping channel, the ladle is pulled down to a pouring workshop by a traction trolley, silicon-manganese is poured in a cast iron mould or a sand mould by hoisting the ladle by a crown block, and a silicon-manganese blank is hoisted to a fine charging workshop by the crown block after cooling. The slag flows into a slag pool through a slag outlet 6 for water quenching, can be used as a raw material for construction after being cooled, and improves the effect of recycling waste in the whole smelting process through secondary use of the slag.
Specifically, in the embodiment of the invention, a large amount of flue gas is generated in the smelting process, the flue gas enters the bag-type dust remover 8 through the attraction of the draught fan 7, the flue gas purified by the bag-type dust remover 8 is exhausted into the air through the exhaust funnel connected with the smoke outlet 9 at the top of the bag-type dust remover 8, dust particles in the bag-type dust remover 8 are exhausted into the dust outlet 10 at regular time by means of power air pressure energy, and after reaching a certain amount, the flue gas is exhausted into a trolley to be manually pushed away, and the dust particles are in the dust. A smoke hood for collecting smoke dust is arranged above the smelting furnace, the smoke dust generated by high temperature in the electric furnace is collected, the smoke gas with the temperature of 400C and the dust content of 4-6g/m 'is sent to a spark collector to settle larger particle smoke dust, then the residual gas is sent to a U-shaped tubular air cooler, the smoke gas is sent to a high-temperature filter bag dust collector 8 after being cooled to 200 ℃, the smoke gas after dust removal is discharged to the atmosphere through a fan and a chimney, the discharge standard is less than 50mg/m', the smoke dust completely meets the national discharge standard, more recovered dust is fine dust, generally contains silica fine particles, more than 90 percent of which can be used as excellent building materials, and if the content of silica is further improved, the smoke dust can be used as an excellent raw material of silica sol and organic silicon. Particularly, the furnace body 1 can meet the temperature of central heating by recycling the waste heat of the circulating water of the electric furnace of the furnace body 1 in the heating process, and can meet the daily heating requirements of nearby residents.
Specifically, in the embodiment of the invention, the invention provides an environment-friendly pollution-free silicon-manganese alloy smelting process, which comprises the following steps:
in the step 1, raw materials containing manganese comprise manganese ores and manganese-rich slag, and the manganese ores and the manganese-rich slag are mixed in proportion; in the step 2, the raw material containing silicon comprises silica and ferrosilicon, and the silica and the ferrosilicon are mixed according to a proportion; in the step 3, the furnace comprises a control system, wherein a parameter matrix F1(S0, M0, T, P) conforming to silicon-manganese alloy smelting is set in the control system, wherein the content of the liquid silicon mixture put into the furnace is set to be S0, and the content of the liquid manganese mixture put into the furnace is set to be M0; setting the real-time temperature in the furnace as T, setting the real-time pressure in the furnace as P, and measuring and acquiring the four parameters in real time through the control system;
a standard matrix F2(A, B, A0, B0) of the silicon-manganese alloy is set in the control system, wherein the content of silicon in the liquid silicon-manganese alloy is set to be A, the content of manganese in the liquid silicon-manganese alloy is set to be B, the error of the content of silicon in the liquid silicon-manganese alloy is set to be A0, and the error of the content of manganese in the liquid silicon-manganese alloy is set to be B0;
setting an adjusting matrix F3(S11, M11, TO, P0, NT, NP) in the control system, wherein the content of the liquid silicon mixture added each time is set as S11, the content of the liquid manganese mixture added each time is set as M11, the degree of upward adjustment of the furnace temperature increased each time is set as TO, the pressure in the furnace increased each time is set as P0, the highest temperature in the furnace is set as TM, the highest pressure in the furnace is set as PM, and NT is set as the number of temperature adjustment; NP is the pressure regulation times;
and in the smelting process in the furnace, comparing the parameters of the standard matrix with the smelting parameter rectangle, and adjusting the silicon content and the manganese content in the silicon-manganese alloy within a set range according to the comparison result and the adjusting mode of the adjusting matrix so as to adjust the content meeting the requirements of the silicon-manganese alloy.
Specifically, in the embodiment of the invention, the requirement of the silica is strict in the smelting of the selected silica, and the surface of the silica cannot contain waste stone, pebble-like silica and weathered stone. The silica surface is not allowed to have impurities more than 1mm thick. The silica block does not allow for the encapsulation of various harmful substances with a diameter greater than 5 mm. Silica is a main raw material for smelting ferrosilicon, manganese-silicon alloy, silicon-chromium alloy, industrial silicon, glass industry and the like, and is also a slagging agent and a fluxing agent for producing various ferroalloys.
Specifically, in the embodiment of the invention, the content A11 of silicon in the silicon-manganese alloy in the standard matrix is less than A + A0 and greater than A-A0.
Specifically, in the embodiment of the invention, the content B11 of manganese in the silicon-manganese alloy in the standard matrix is less than B + B0 and greater than B-B0.
Specifically, in the embodiment of the present invention, the content of silicon in the liquid silicon-manganese alloy is set to be a11, and if the content a11 of silicon in the liquid silicon-manganese alloy measured in real time is less than a + a0, and the content a11 of silicon in the liquid silicon-manganese alloy measured in real time is greater than a-a0, the control system does not need to adjust the content of silicon in the liquid silicon-manganese alloy.
Specifically, in the embodiment of the invention, if the content A11 of silicon in the silicon-manganese alloy measured in real time is less than A-A0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T1, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T1 is (TM) and TM-T1 is (TM) 0, NT1 is preset TO be the number of times that T1 increases TO TO TM each time, wherein NT1 is (TM-T1)/T0, if NT1 is (NT) 1, the highest temperature adjusting number is adjusted according TO NT1, the highest temperature in the furnace is T1+ NT 1T 0, if NT1 is (NT 1), the highest temperature adjusting number is adjusted according TO NT1, and the highest temperature in the furnace is T1+ NT 1T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P1< PM and PM-P1> P0, presetting NP1 as the number of times that P1 increases PO to PM every time, wherein NP1 is (PM-P1)/P0, if NP1> NP 23, the highest pressure regulating number is regulated according to NP1, so that the pressure in the furnace is up to P1+ NP 1P 0, and if NP1< NP1, the highest pressure regulating number is regulated according to NP1, so that the pressure in the furnace is up to P1+ NP 1P 0;
the highest number of times that the control system adds the content S11 of the liquid silicon mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of the liquid silicon mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the content A11 of silicon in the silicon-manganese alloy in real time in the process of each adjustment time, if the content A11 of the silicon in the silicon-manganese alloy is still smaller than A-AO, the adjustment times are increased until the control system detects the content A11 of the silicon in the silicon-manganese alloy in real time, and when the content A11 is larger than A-A0 and smaller than A + A0, the adjustment process is stopped.
Specifically, in the embodiment of the invention, if the content a11 of silicon in the silicon-manganese alloy measured in real time is greater than a + a0, the control system adjusts according to the adjustment matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T2, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T2 is (TM) and TM-T2 is (TM) 0, NT2 is preset TO be the number of times that T2 increases TO TO TM each time, wherein NT2 is (TM-T2)/T0, if NT2 is (NT) 2, the highest temperature adjusting number is adjusted according TO NT2, the highest temperature in the furnace is T2+ NT 2T 0, if NT2 is (NT 2), the highest temperature adjusting number is adjusted according TO NT2, and the highest temperature in the furnace is T2+ NT 2T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P2< PM and PM-P2> P0, presetting NP2 as the number of times that P2 increases PO to PM every time, wherein NP2 is (PM-P2)/P0, if NP2> NP 23, the highest pressure regulating number is regulated according to NP2, so that the pressure in the furnace is up to P2+ NP 2P 0, and if NP2< NP2, the highest pressure regulating number is regulated according to NP2, so that the pressure in the furnace is up to P2+ NP 2P 0;
the highest number of times that the control system adds the content M11 of the liquid manganese mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of a liquid manganese mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the content A11 of silicon in the silicon-manganese alloy in real time in the process of each adjustment time, if the content A11 of the silicon in the silicon-manganese alloy is still greater than A + AO, the adjustment times are increased until the control system detects the content A11 of the silicon in the silicon-manganese alloy in real time, and when the content A11 is greater than A-A0 and less than A + A0, the adjustment process is stopped.
Specifically, in the embodiment of the present invention, the content of manganese in the liquid silicon-manganese alloy is set to be B11, and if the content of manganese in the liquid silicon-manganese alloy, measured in real time, B11 is less than B + B0, and the content of manganese in the liquid silicon-manganese alloy, measured in real time, B11 is greater than B-B0, the control system does not need to adjust the content of manganese in the liquid silicon-manganese alloy.
Specifically, in the embodiment of the invention, if the content B11 of manganese in the silicon-manganese alloy measured in real time is less than B-B0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T3, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T3 is (TM) and TM-T3 is (TM) 0, NT3 is preset TO be the number of times that T3 increases TO TO TM each time, wherein NT3 is (TM-T3)/T0, if NT3 is (NT) 3, the highest temperature adjusting number is adjusted according TO NT3, the highest temperature in the furnace is T3+ NT 3T 0, if NT3 is (NT 3), the highest temperature adjusting number is adjusted according TO NT3, and the highest temperature in the furnace is T3+ NT 3T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P3< PM and PM-P3> P0, presetting NP3 as the number of times that P3 increases PO to PM every time, wherein NP3 is (PM-P3)/P0, if NP3> NP 23, the highest pressure regulating number is regulated according to NP3, so that the pressure in the furnace is up to P3+ NP 3P 0, and if NP3< NP3, the highest pressure regulating number is regulated according to NP3, so that the pressure in the furnace is up to P3+ NP 3P 0;
the highest number of times that the control system adds the content M11 of the liquid manganese mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of a liquid manganese mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the manganese content B11 in the silicon-manganese alloy in real time in the process of each adjustment time, if the silicon content B11 in the silicon-manganese alloy is still less than B-B0, the adjustment times are increased until the control system detects the silicon content B11 in the silicon-manganese alloy in real time, and when the content of B11 is greater than B-B0 and less than B + B0, the adjustment process is stopped.
Specifically, in the embodiment of the invention, if the content B11 of manganese in the silicon-manganese alloy measured in real time is greater than B + B0, the control system performs adjustment according to the adjustment matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T4, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T4 is (TM) and TM-T4 is (TM) 0, NT4 is preset TO be the number of times that T4 increases TO TO TM each time, wherein NT4 is (TM-T4)/T0, if NT4 is (NT) 4, the highest temperature adjusting number is adjusted according TO NT4, the highest temperature in the furnace is T4+ NT 4T 0, if NT4 is (NT 4), the highest temperature adjusting number is adjusted according TO NT4, and the highest temperature in the furnace is T4+ NT 4T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P4< PM and PM-P4> P0, presetting NP4 as the number of times that P4 increases PO to PM every time, wherein NP4 is (PM-P4)/P0, if NP4> NP 23, the highest pressure regulating number is regulated according to NP4, so that the pressure in the furnace is up to P4+ NP 4P 0, and if NP4< NP4, the highest pressure regulating number is regulated according to NP4, so that the pressure in the furnace is up to P4+ NP 4P 0;
the highest times of adding the content S11 of the liquid silicon mixture into the furnace by the control system are the highest values of the temperature adjustment times and the pressure adjustment times;
the control system controls the content of the liquid silicon mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the manganese content B11 in the silicon-manganese alloy in real time in the process of each adjustment time, if the silicon content B11 in the silicon-manganese alloy is still larger than B + B0, the adjustment times are increased until the control system detects the silicon content B11 in the silicon-manganese alloy in real time, and when the content of B11 is larger than B-B0 and smaller than B + B0, the adjustment process is stopped.
Specifically, in the embodiment of the invention, the control system adjusts the liquid silicon mixture and the liquid manganese mixture added in the furnace and controls the adjustment times of the temperature and the pressure in the furnace by detecting the temperature, the pressure, the content of silicon and the content of manganese in the silicon-manganese alloy in real time, according to the required content of silicon and manganese in the silicon-manganese alloy, so that the content of silicon in the silicon-manganese alloy, A11, is greater than A-A0 and less than A + A0, and the content of manganese in the silicon-manganese alloy, B11, is greater than B-B0 and less than B + B0, thereby completing the smelting process;
or when the times of adjusting the parameters of the adjusting matrix reach the maximum times, the content A11 of silicon in the silicon-manganese alloy and the content B11 of manganese in the silicon-manganese alloy are still not in the required content range of silicon and manganese in the silicon-manganese alloy, and the control system stops the adjusting process.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An environment-friendly pollution-free silicon-manganese alloy smelting process is characterized by comprising the following steps:
step 1, putting a manganese-containing raw material into a furnace for smelting to obtain a liquid manganese mixture;
step 2, putting the silicon-containing raw material into a furnace for smelting to obtain a liquid silicon mixture;
step 3, weighing the liquid manganese mixture and the liquid silicon mixture, putting the weighed liquid manganese mixture and liquid silicon mixture into a furnace according to a proportion, and smelting to obtain a silicon-manganese alloy;
in the step 1, raw materials containing manganese comprise manganese ores and manganese-rich slag, and the manganese ores and the manganese-rich slag are mixed in proportion; in the step 2, the raw material containing silicon comprises silica and ferrosilicon, and the silica and the ferrosilicon are mixed according to a proportion; in the step 3, the furnace comprises a control system, wherein a parameter matrix F1(S0, M0, T, P) conforming to silicon-manganese alloy smelting is set in the control system, wherein the content of the liquid silicon mixture put into the furnace is set to be S0, and the content of the liquid manganese mixture put into the furnace is set to be M0; setting the real-time temperature in the furnace as T, setting the real-time pressure in the furnace as P, and measuring and acquiring the four parameters in real time through the control system;
a standard matrix F2(A, B, A0, B0) of the silicon-manganese alloy is set in the control system, wherein the content of silicon in the liquid silicon-manganese alloy is set to be A, the content of manganese in the liquid silicon-manganese alloy is set to be B, the error of the content of silicon in the liquid silicon-manganese alloy is set to be A0, and the error of the content of manganese in the liquid silicon-manganese alloy is set to be B0;
setting an adjusting matrix F3(S11, M11, TO, P0, NT, NP) in the control system, wherein the content of the liquid silicon mixture added each time is set as S11, the content of the liquid manganese mixture added each time is set as M11, the degree of upward adjustment of the furnace temperature increased each time is set as TO, the pressure in the furnace increased each time is set as P0, the highest temperature in the furnace is set as TM, the highest pressure in the furnace is set as PM, and NT is set as the number of temperature adjustment; NP is the pressure regulation times;
and in the smelting process in the furnace, comparing the parameters of the standard matrix with the smelting parameter rectangle, and adjusting the silicon content and the manganese content in the silicon-manganese alloy within a set range according to the comparison result and the adjusting mode of the adjusting matrix so as to adjust the content meeting the requirements of the silicon-manganese alloy.
2. The environment-friendly pollution-free silicon-manganese alloy smelting process according to claim 1, wherein the content of silicon in the silicon-manganese alloy in the standard matrix A11 is less than A + A0 and greater than A-A0.
3. The environment-friendly pollution-free silicon-manganese alloy smelting process according to claim 1, wherein the manganese content B11 in the silicon-manganese alloy in the standard matrix is less than B + B0 and greater than B-B0.
4. The environment-friendly pollution-free silicon-manganese alloy smelting process of claim 2, wherein the content of silicon in the liquid silicon-manganese alloy is set to be A11, and if the content of silicon in the liquid silicon-manganese alloy measured in real time, A11, is less than A + A0, and the content of silicon in the liquid silicon-manganese alloy measured in real time, A11, is greater than A-A0, the control system does not need to adjust the content of silicon in the liquid silicon-manganese alloy.
5. The environment-friendly pollution-free silicon-manganese alloy smelting process according to claim 2, wherein if the content A11 of silicon in the silicon-manganese alloy measured in real time is less than A-A0, the control system is adjusted according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T1, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T1 is (TM) and TM-T1 is (TM) 0, NT1 is preset TO be the number of times that T1 increases TO TO TM each time, wherein NT1 is (TM-T1)/T0, if NT1 is (NT) 1, the highest temperature adjusting number is adjusted according TO NT1, the highest temperature in the furnace is T1+ NT 1T 0, if NT1 is (NT 1), the highest temperature adjusting number is adjusted according TO NT1, and the highest temperature in the furnace is T1+ NT 1T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P1< PM and PM-P1> P0, presetting NP1 as the number of times that P1 increases PO to PM every time, wherein NP1 is (PM-P1)/P0, if NP1> NP 23, the highest pressure regulating number is regulated according to NP1, so that the pressure in the furnace is up to P1+ NP 1P 0, and if NP1< NP1, the highest pressure regulating number is regulated according to NP1, so that the pressure in the furnace is up to P1+ NP 1P 0;
the highest number of times that the control system adds the content S11 of the liquid silicon mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of the liquid silicon mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the content A11 of silicon in the silicon-manganese alloy in real time in the process of each adjustment time, if the content A11 of the silicon in the silicon-manganese alloy is still smaller than A-AO, the adjustment times are increased until the control system detects the content A11 of the silicon in the silicon-manganese alloy in real time, and when the content A11 is larger than A-A0 and smaller than A + A0, the adjustment process is stopped.
6. The environment-friendly pollution-free silicon-manganese alloy smelting process according to claim 2, wherein if the content A11 of silicon in the silicon-manganese alloy measured in real time is greater than A + A0, the control system adjusts according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T2, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T2 is (TM) and TM-T2 is (TM) 0, NT2 is preset TO be the number of times that T2 increases TO TO TM each time, wherein NT2 is (TM-T2)/T0, if NT2 is (NT) 2, the highest temperature adjusting number is adjusted according TO NT2, the highest temperature in the furnace is T2+ NT 2T 0, if NT2 is (NT 2), the highest temperature adjusting number is adjusted according TO NT2, and the highest temperature in the furnace is T2+ NT 2T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P2< PM and PM-P2> P0, presetting NP2 as the number of times that P2 increases PO to PM every time, wherein NP2 is (PM-P2)/P0, if NP2> NP 23, the highest pressure regulating number is regulated according to NP2, so that the pressure in the furnace is up to P2+ NP 2P 0, and if NP2< NP2, the highest pressure regulating number is regulated according to NP2, so that the pressure in the furnace is up to P2+ NP 2P 0;
the highest number of times that the control system adds the content M11 of the liquid manganese mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of a liquid manganese mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the content A11 of silicon in the silicon-manganese alloy in real time in the process of each adjustment time, if the content A11 of the silicon in the silicon-manganese alloy is still greater than A + AO, the adjustment times are increased until the control system detects the content A11 of the silicon in the silicon-manganese alloy in real time, and when the content A11 is greater than A-A0 and less than A + A0, the adjustment process is stopped.
7. The environment-friendly pollution-free silicon-manganese alloy smelting process of claim 3, wherein the manganese content in the liquid silicon-manganese alloy is set to be B11, and if the manganese content B11 in the liquid silicon-manganese alloy measured in real time is smaller than B + B0 and the manganese content B11 in the liquid silicon-manganese alloy measured in real time is larger than B-B0, the control system does not need to adjust the manganese content in the liquid silicon-manganese alloy.
8. The environment-friendly pollution-free silicon-manganese alloy smelting process according to claim 3, wherein if the manganese content B11 in the silicon-manganese alloy measured in real time is less than B-B0, the control system is adjusted according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T3, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T3 is (TM) and TM-T3 is (TM) 0, NT3 is preset TO be the number of times that T3 increases TO TO TM each time, wherein NT3 is (TM-T3)/T0, if NT3 is (NT) 3, the highest temperature adjusting number is adjusted according TO NT3, the highest temperature in the furnace is T3+ NT 3T 0, if NT3 is (NT 3), the highest temperature adjusting number is adjusted according TO NT3, and the highest temperature in the furnace is T3+ NT 3T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P3< PM and PM-P3> P0, presetting NP3 as the number of times that P3 increases PO to PM every time, wherein NP3 is (PM-P3)/P0, if NP3> NP 23, the highest pressure regulating number is regulated according to NP3, so that the pressure in the furnace is up to P3+ NP 3P 0, and if NP3< NP3, the highest pressure regulating number is regulated according to NP3, so that the pressure in the furnace is up to P3+ NP 3P 0;
the highest number of times that the control system adds the content M11 of the liquid manganese mixture into the furnace is the highest value of the temperature adjustment number and the pressure adjustment number;
the control system controls the content of a liquid manganese mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the manganese content B11 in the silicon-manganese alloy in real time in the process of each adjustment time, if the silicon content B11 in the silicon-manganese alloy is still less than B-B0, the adjustment times are increased until the control system detects the silicon content B11 in the silicon-manganese alloy in real time, and when the content of B11 is greater than B-B0 and less than B + B0, the adjustment process is stopped.
9. The environment-friendly pollution-free silicon-manganese alloy smelting process according to claim 3, wherein if the manganese content B11 in the silicon-manganese alloy measured in real time is greater than B + B0, the control system is adjusted according to the adjusting matrix;
according TO the fact that the temperature measured by the parameter matrix in real time in the control system is T4, the temperature is compared with the highest temperature TM in the furnace of the adjusting matrix, if T4 is (TM) and TM-T4 is (TM) 0, NT4 is preset TO be the number of times that T4 increases TO TO TM each time, wherein NT4 is (TM-T4)/T0, if NT4 is (NT) 4, the highest temperature adjusting number is adjusted according TO NT4, the highest temperature in the furnace is T4+ NT 4T 0, if NT4 is (NT 4), the highest temperature adjusting number is adjusted according TO NT4, and the highest temperature in the furnace is T4+ NT 4T 0;
according to the pressure measured in real time by the parameter matrix in the control system, compared with the highest pressure PM in the furnace of the regulating matrix, if P4< PM and PM-P4> P0, presetting NP4 as the number of times that P4 increases PO to PM every time, wherein NP4 is (PM-P4)/P0, if NP4> NP 23, the highest pressure regulating number is regulated according to NP4, so that the pressure in the furnace is up to P4+ NP 4P 0, and if NP4< NP4, the highest pressure regulating number is regulated according to NP4, so that the pressure in the furnace is up to P4+ NP 4P 0;
the highest times of adding the content S11 of the liquid silicon mixture into the furnace by the control system are the highest values of the temperature adjustment times and the pressure adjustment times;
the control system controls the content of the liquid silicon mixture added into the furnace, simultaneously adjusts the real-time temperature and pressure in the furnace, the adjustment times are increased in number, the control system detects the manganese content B11 in the silicon-manganese alloy in real time in the process of each adjustment time, if the silicon content B11 in the silicon-manganese alloy is still larger than B + B0, the adjustment times are increased until the control system detects the silicon content B11 in the silicon-manganese alloy in real time, and when the content of B11 is larger than B-B0 and smaller than B + B0, the adjustment process is stopped.
10. The environment-friendly pollution-free silicon-manganese alloy smelting process according to any one of claims 1 to 9, wherein the control system is used for detecting the temperature, the pressure, the silicon content and the manganese content in the silicon-manganese alloy in the furnace in real time, adjusting the liquid silicon mixture and the liquid manganese mixture added in the furnace according to the required silicon content and manganese content in the silicon-manganese alloy, and controlling the adjustment times of the temperature and the pressure in the furnace, so that the silicon content A11 in the silicon-manganese alloy is greater than A-A0 and less than A + A0, and the manganese content B11 in the silicon-manganese alloy is greater than B-B0 and less than B + B0, thereby completing the smelting process;
or when the times of adjusting the parameters of the adjusting matrix reach the maximum times, the content A11 of silicon in the silicon-manganese alloy and the content B11 of manganese in the silicon-manganese alloy are still not in the required content range of silicon and manganese in the silicon-manganese alloy, and the control system stops the adjusting process.
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Application publication date: 20201120 |