阅读说明：本技术 无病毒海绵铁氢炭钢材产业链制取工艺及设备 (Production process and equipment for virus-free sponge iron hydrogen carbon steel industrial chain ) 是由 张振逵 于 2021-06-11 设计创作，主要内容包括：无病毒海绵铁氢炭钢材产业链制取工艺及设备,《8+1行业》是钢铁有色、稀有稀土、贵金属、铁合金、化工核工业,另加发动机特别是柴油发动机,用煤粉、焦炭、石油焦等含C/H-2物质还原,其共同特征是用空气作氧化剂,必然会产生海量致癌物质NOx,用纯O-2作氧化剂取代空气,就没有病毒产生,充分利用长流程现有厂房设备等,投资6000万元,制取DRI等产品,是国家发展战略前沿高附加值产品,形成产业链,GDP 327.09亿元,纯利315.57亿元,基本没有CO-2等温室气体产生。注：①符号“/”如“A/B”表示“A或B或A+B”。②本发明热化学使用cal或kcal,1cal＝4.184J,1kcal＝4.184kJ。③本发明的炭＝CO,例如氢炭发动机,碳＝CO-2,例如碳峰值碳中和。(The 8+1 industry refers to the iron and steel non-ferrous, rare earth, noble metal, ferroalloy, chemical and nuclear industries, and additionally, engines, especially diesel engines, using coal powder, coke, petroleum coke and the like containing C/H 2 The reduction of substances, which is characterized in that air is used as oxidant and generates a great amount of carcinogenic NOx, pure O is used 2 As oxidant to replace air, no virus is generated, existing factory building equipment and the like in long flow are fully utilized, 6000 million Yuan investment is made, products such as DRI and the like are prepared, the products are high added value products at the front of national development strategy, an industrial chain is formed, GDP 327.09 million Yuan is realized, 315.57 million Yuan is realized in pure profit, and CO is basically not generated 2 Isothermal chamber gas generation. Note: the symbol "/" like "A/B" means "A or B or A + B". ② the invention thermochemical uses cal or kcal, 1cal 4.184J, 1kcal 4.184 kJ. ③ carbon-CO of the invention, e.g. hydrogen-carbon engines, carbon-CO 2 Such as carbon peak carbon neutralization.)

1. The 8+1 industry particularly takes blast furnace iron-making as a central long flow, which inevitably generates and discharges massive nitrogen oxides (NOx) and lung cancer substance C particles, is a core chemical component of Zhang's motion (a special Brownian motion), is a core chemical component for generating viruses, can be spread and repeatedly appear in the world without being eradicated in one day, and is harmful to all aspects, the invention is characterized in that water containing alkali metal compounds or alkaline earth metal compounds with the concentration of 30-100 gmol/L is filled into a container arranged by aircrafts such as helicopter unmanned planes and the like, and is sprayed/sprayed into the air in the morning, a container containing alkali solution can be arranged on a roof, so that the alkali solution and NOx with strong acidity can generate neutralization reaction (see reactions (5) and (6)), and the like tail gas discharged by automobile engines, particularly diesel engines, as compared with 8+1 industry, it uses air as oxidant, and has NOx/C particles produced and discharged, and when the pH value is checked by using pH test paper and is less than 8, it must be changed into new alkali solution, so that in 8+1 industry and city there is no virus/C particles produced and discharged.

2. The lattice metallurgy knowledge of understanding the atomic molecular size of minerals is a ZZK short-process batching operationThe theoretical basis (see figure 1) is the basis of original and subversive theory and practice and is characterized in that the iron ore and coal powder coke are used as the coke, and the C/H content is high₂Direct reduction of substances as reducing agents (see reactions (7) and (8) () with pure O₂The method has no virus/C particles generated and discharged by replacing air as an oxidant, fully utilizes the existing long-flow factory building equipment and the like, replaces converter steelmaking with electric furnace steelmaking, and basically has no CO₂Isothermal chamber gas generation and venting.

3. Original subversive lattice metallurgy and microwave technology are organically combined, and the method is characterized in that pure O is used₂The coal powder-blowing coke is composed of coke and the like containing C/H₂Regulating and controlling pure O by using a substance, NaOH powder and iron ore concentrate (the use amount of each component is determined by reactions (7) to (9))₂The temperature of a microwave reactor is 1000-1200 ℃, the temperature of a direct reduction reactor is 1200-1350 ℃, reduced product DRI powder, particularly high-added-value ultrafine DRI powder with-500 meshes, is obtained, the DRI powder with-500 meshes is magnetically separated by an SLon type magnetic separator, cold-rolled steel foil of a stainless steel plate cold-rolled steel plate pressure vessel plate is produced by electric furnace steelmaking, and further a product packaging vessel and the like are produced to form an industrial chain (see figure 1).

4. With pure O₂The method can prepare alkali metal compounds such as K/Na and the like by replacing air as an oxidant in the industry of 8+1, and is characterized in that: reactions (7) and (8) produce a large amount of soluble Na₂O·SiO₂/K₂O·SiO₂The lime which is cheaper in market is used for replacing the lime (see reaction (11)), the leaching reaction is carried out in a stirring tank, and the solid-liquid ratio is Na₂O·SiO₂/K₂O·SiO ₂Reacting water at a ratio of 1: 3-4 at 25-80 deg.C for 60 min, filtering with plate-and-frame filter press, and washing with water to remove residue (CaSiO)₃) The mixture is sent to a cement plant to be used as an admixture, the NaOH/KOH powder obtained by the concentration and crystallization of the alkali solution is returned to the ZZK short-flow batching operation, and the product quality of the system is not influenced by the recycling (see figure 1).

5. With pure O₂Replace air as oxidant in the 8+1 industry, by using waste air in the marketPreparing new energy new fuel H from high molecular compound such as bright plastic₂+ CO ", it is characterized by that said high-molecular compound is solidified at 50-60 deg.C, and ground into 80% powder with-150 meshes by means of ball mill/fan mill, and then the powder is mixed with pure O₂As a carrier for dilute phase transportation (80-100 Kg/Nm)³) The high molecular compound is subjected to heat balance between the heat generated by sufficient combustion and gas-making reaction (see reactions (9) and (10)), and the CO content of the high molecular compound is sampled and assayed to reach the peak value required by the target task, see figure 1 "↓5".

6. With pure O₂Replace the 8+1 industry which uses air as oxidant, the obtained nitrogen-potassium fertilizer and nitrogen-calcium fertilizer are applied to plant greenhouse, new energy new fuel H₂+ CO "is burnt in the plant greenhouse to raise the temperature of the greenhouse and produce CO₂Is an essential 'air fertilizer' for plants.

(I) technical field

The 8+1 trade is the iron and steel non-ferrous, rare earth, noble metal, ferroalloy, chemical and nuclear industries, and is added with engines, especially diesel engines, using coal powder, coke, petroleum coke, etc. containing C/H₂Reduction of substances, with the common feature of using air (21% O)₂+79％N₂) As an oxidant, a large amount of nitrogen oxide (NOx) is inevitably generated, and practice shows that the carcinogenic substance NOx is a carrier of 'new coronavirus/C particles' (the C particles are also called haze), so that the human can kill the tree after inhaling the canker and the tree leaves which are dropped on the tree are withered and yellow to die. Any metallurgical chemical reaction which must be supplied with heat takes place, more than 95% of the NOx formed in industry 8+1 being N₂O₄The remainder being NO₂. Then how does NOx be generated?

In the 8+1 industry, the current steel industry has the largest influence, the widest range, the most NOx generated and the largest harm, and is a main object to be researched for eradicating viruses in various countries in the world.

(II) background of the invention

There are also many major key technical problems that are not solved by the top scientists in the world, mainly:

what is the core chemical component of the virus?

Why is the virus globally spread characterized as "large area, high intensity and fast speed"? Then what is the virus-transmitted vector? I.e. what is the mechanism of viral/C particle transmission?

How can one hundred years of the world's big problem be solved? How to fully utilize the existing long-flow plant equipment and the like for technical transformation to form an industrial chain, and to eradicate the generation and emission of virus/C particles, and correspondingly improve the economic and social environmental benefits after transformation?

Obviously, the innovative theory, method/process, thought/concept is needed to solve the worldwide big problem which is not met for the hundred years.

The technical improvement of the existing long flow requires no generation and discharge of viruses, and the existing long flow factory building equipment is fully utilized to form an industrial chain, so that better economic benefits and massive social environmental protection benefits are generated. For this purpose, it must be combined with sponge iron (DRI), in particular-500 mesh DRI powder.

Generally, the iron powder is prepared by adopting a spraying method, namely, firstly, melting iron blocks, and then, obtaining fine particle iron powder by using a cold water spraying method. However, this method has [ O ]^-Too high amount of H₂The invention adopts direct reduction method to prepare DRI powder, especially ultra-fine powder with high added value of-500 meshes, in short ZZK process based on principle subversion of lattice metallurgy as theory. And the formation of an industrial chain produces better economic benefits.

Disclosure of the invention

The long process mainly for blast furnace ironmaking is an indirect reduction method, and is characterized by that it uses air as oxidant and burns coal, coke and petroleum coke, etc. containing C/H₂The substances provide heat for metallurgical chemical reactions, and the following reactions are necessarily generated in equipment such as a hot blast stove/a blast furnace and the like:

0.5N₂+O₂＝＝＝NO₂......(1)ΔG^o ₍₁₎＝7.75

NO₂+NO₂＝＝＝N₂O₄......(2)ΔG^o ₍₂₎＝-41.21

the former is an endothermic reaction and the latter is an exothermic reaction, which are generated in a hot blast stove and a blast furnace, respectively. And disproportionation reaction generation:

C+0.5O₂＝＝＝CO......(3)ΔG^o ₍₃₎＝-26.42

CO+CO＝＝＝CO₂+ C (microparticles)^o ₍₄₎＝-41.21

It can be seen that the production and emission (including PM) of carcinogenic NOx and lung cancer C particles (also called haze) are inevitable in a long process centered on blast furnace ironmaking_0.5～PM₁) If the NOx/C particles in the 8+1 industry are not eradicated in one day, the virus can be spread in a large area, high strength and high speed in the world, and repeatedly appears to harm common people until the NOx/C particles are completely eradicated.

Theory and practice of gas compression

A long process centered on blast furnace ironmaking is an indirect reduction method, see attached Table 1

As can be seen from table 1, the known gas compression separation technology must satisfy both the critical temperature and the critical pressure to separate various gases effectively. Here, H₂O_(g)With CO₂First liquefied. Then is H₂Liquefied with CO, and H₂The critical temperature and critical pressure of the/CO are close to each other, and the extraction can be carried out together, so that the production cost is reduced.

Law of carbon emissions

The Zhang's exercise uses air as an oxidant,burning coal, coke, petroleum coke, etc. containing C/H₂The substance provides heat for chemical reaction, and practice shows that a large amount of NOx (xie) sustaining virus/C particles are generated, and are diffused and drifted to an airspace of hundreds to thousands of kilometers away in an atmospheric airspace to form secondary environmental pollution, which is special Brownian motion and is commonly called Zhang motion. It is the theoretical basis and the essential reason for viral transmission.

Practice has shown that NOx is a carrier of viral/C particle transmission, being the wings of its flight. The invention is characterized in that the water contains alkali metal compound or alkaline earth metal compound with the concentration of 30-100 gmol/L, and the alkali metal compound or alkaline earth metal compound is put into a container arranged on aircrafts such as helicopters, unmanned planes and the like, and the alkali metal compound or alkaline earth metal compound is sprayed into the air before morning, and a container for containing alkali solution can be arranged on the roof. The alkali solution and the NOx with strong acidity generate neutralization reaction:

K₂O/KOH+N₂O₄→2KNO₃+H₂O......(5)

CaO/Ca(NO₃)₂+N₂O₄→Ca(NO₃)₂+H₂O......(6)

similarly, the tail gas discharged by automobile engines, especially diesel engines, can also be neutralized by alkaline solution. When the pH value is checked by a pH test paper to be less than 8, the alkali solution is replaced by new alkali solution. KNO₃And Ca (NO)₃)₂Are respectively high-quality nitrogen potassium fertilizer and nitrogen calcium fertilizer. Thus, there is no virus/C particle generation and emission in industry 8+1 and cities.

The microwave reactor is used for preparing ZZK short-process direct reduced iron powder, in particular to-500-mesh high-added-value superfine DRI powder, and the microwave reactor is characterized in that: the larger the mineral dielectric constant is, the more microwave energy is absorbed, and the better the heating effect is, and the effects are that water is larger than hematite, magnetite is larger than graphite, coke is larger than calcite, and dolomite is larger than quartz in sequence. Secondly, the microwave energy reduces the molecular orbital energy, is beneficial to direct reduction of C-containing iron ore powder, reduces the reduction temperature by 200-300 ℃, thirdly, the microwave heating is integral heating, can carry out selective heating on metallurgical powder, is a dipolar molecular internal energy conversion process, and has the chemical reaction speed ratio of transmissionThe external heating mode is improved by hundreds times and is improved by 1240 times to the maximum, CO is a molecule with weak polarity which can be polarized in a microwave oven, and the generation of CO is not C and O₂C deprives Fe in the iron ore powder₂O₃[ O ] in FeO^-Generated when C/O₂At 1, the effect of temperature on the reduction reaction is very significant. The direct reduction reaction comprises the following steps:

Fe₂O₃+SiO₂+2NaOH+3C＝＝＝2Fe+Na₂O·SiO₂+2CO+H₂+CO₂......(7)^ΔG^o ₍₇₎＝21.12

FeO+SiO₂+2NaOH+2C＝＝＝Fe+Na₂O·SiO₂+2CO+H₂......(8)^ΔG^o ₍₈₎＝-16.51

iron ore powder containing C and its reduction temp. rise speed is greater than C/H content of coal powder, coke and petroleum coke₂The substance is favorable for preparing DRI powder by direct reduction reaction without providing H from the outside₂CO reduction, because the gas diffusion rate in the material is greater than the chemical reaction rate.

The basic principle of direct reduction reaction in microwave reactor.

However, microwave heating is required to consume electric energy, and how to reduce the energy consumption of microwave heating is very important for producing DRI powder. The method comprises the following steps: gas making reaction: h₂O_(g)+O₂+3C＝3CO+H₂ ^ΔG⁰ ₍₉₎-21.31(9) (see fig. 1) H₂O_(g)+CO₂+2C＝2H₂+3CO, +42.04(10) was sent to the microwave reactor and produced more H directly₂And the CO reduces the gas, so that the benefit is better. The gas-making reaction and the dilute-phase transport polymer oxidation reaction (see fig. 1) are used to perform the system heat balance.

NaOH powder recovery

Reactions (7) and (8) produce a large amount of soluble Na₂O·SiO₂The NaOH powder can be recycled and returned to ZZK short-flow batching operation, the product quality of the system is not recycled, the DRI powder generation cost is reduced by 18-25%, and lime with lower market price is used for replacing:

Na₂O·SiO₂+CaO+H₂O＝＝＝2NaOH+CaSiO₃↓ (water flushing slag)....... -% (11)

The leaching reaction is carried out in a stirring tank, and the solid-to-liquid ratio is Na₂O·SiO₂Reacting water at the temperature of 25-80 ℃ for 60 minutes at the ratio of 1: 3-4, filtering by using a plate-and-frame filter press, and conveying water-washed slag to a cement plant as a blending material, thereby reducing CO in the plant₂15 percent of generation and discharge and 10 to 20 percent of cement production cost reduction. Concentrating and crystallizing the alkali solution to obtain NaOH powder, and returning to ZZK short-flow batching operation (see figure 1)

Original subversive theoretical basis

The theory of lattice metallurgy of understanding the atomic molecular size of minerals is the theoretical basis of ZZK short-process batching operation (see figure 1), and the invention uses iron minerals, coal powder, coke, petroleum coke and the like containing C/H₂The material and NaOH powder are proportioned (see reactions (7) and (8)), and the method is characterized in that (1) pure O is used₂Replace air as oxidant, no virus generation and discharge, and can prepare H-containing₂CO in any proportion. ② more than 95 percent of valuable metal elements on the periodic table of the elements are extracted, and the resource utilization rate can reach as high as 99.99 percent (such as Au/Ag and the like)

Thirdly, the existing long-flow factory building equipment is fully utilized through the batching operation and the microwave reactor, and an electric furnace is arranged at the front end of a steel rolling mill to replace a converter (because a large amount of air enters the converter hood, NO is generated_XC particles) together to form an industrial chain, thereby generating huge economic benefits and massive social environmental protection benefits, contributing to the realization of carbon peak carbon neutralization in advance and solving the world's major problems which are not met for the past century!

The invention of the 8+1 industry is characterized in that pure O is used₂The air is replaced as the oxidant, and no virus is generated and discharged. As reported in 2020, the hydrogen production of China is 37 ten thousand tons, the market price is 5000 yuan/ton, wherein Zhejiang Ningbo Haiyue company adopts propane dehydrogenation method to prepare H₂Annual output of 2.6 million tons accounts for 7.1% of the whole country. This method for preparing H₂The production cost is high, but the product is in short supply and the market price is increased.

Hydrogen is a new energy source fuel for replacing electric vehicles in the future. The invention is heavyOne of the tasks is to reduce system H₂Production cost, and improved quality of the product, i.e. improved calorific value of "H + CO" (low Q, Kcal/Nm)³) Thus, the power of the engine is improved, and the running cost of hundred kilometers is reduced. The invention is characterized in that: reaction (7) + (8) + (9) + (10),. sigma.DELTA.G^o21.72-16.51-21.31+ 42.04-25.94, etc., which is called "four-system", which is an endothermic reaction, how does it go through thermal equilibrium? This is one of the key technologies to be solved by the present invention. Secondly, how to improve Q of new energy new fuel_{Is low in}The value is obtained. Please see the combustion reaction:

H₂+0.5O₂＝＝＝H₂O_(g)，-57.95.........(12)

CO+0.5O₂＝＝＝CO₂，-67.63.........(13)

reaction (13) to (12) Q_{Is low in}The improvement is 16.70 percent. Therefore, the new fuel Q of new energy of H + CO is to be improved_{Is low in}The CO content is increased.

(IV) description of the drawings

FIG. 1 is a schematic diagram of the virus-free sponge iron hydrogen carbon steel tri-generation process flow and the principle and the flow of equipment, and is a schematic diagram of the ZZK short-flow direct reduction method and the principle of ingredient operation, and is characterized in that:

firstly, the proportioning operation is carried out on the basis of theory of lattice metallurgy, iron ore concentrate (TFe is more than or equal to 62 percent) is ground in a Raymond mill by a water-wet method, wherein the ore concentrate is ground with 500 meshes accounting for 85 percent, the ground iron ore concentrate is filtered by a plate-frame filter press to obtain 500 meshes of superfine iron ore concentrate powder, the filtered water is recycled, and the C/H-containing iron ore concentrate powder, coke, petroleum coke and the like contain C/H₂The material is ground into 80-100 meshes by a fan for blending operation. The C particles are obtained when the blast furnace tail gas is treated, and can also be used for ZZK short-process batching operation. The NaOH powder comes from recovery (see trans (4)). The amounts of the respective components used are determined by the reactions (7) to (9).

② microwave reactor and direct reduction reactor are used for direct reduction reaction, pure O is used₂Blowing powder material comprising the first step and regulating and controlling pure O₂The temperature of the microwave reactor is 1000-1200 ℃, the temperature of the direct reduction reactor is 1200-1350 ℃, and the reduced product DRI powder, especially 500-mesh high-added-value ultra-high-added-value powder, is obtainedFine DRI powder.

Processing the reduction product. Magnetically separating with a Slon type magnetic separator to produce-500-mesh DRI powder, steelmaking in a power transmission furnace, recovering NaOH powder from the tailings powder, dissolving with lime and water, stirring and leaching, filtering with a plate-and-frame filter press to obtain an alkali solution, concentrating and filtering, and returning the obtained NaOH powder to ZZK short-process batching operation. Water washed slag CaSiO₃Sent to a cement plant to be used as an admixture, so that the CO is reduced₂15 percent of generation and discharge amount and reduces the cement production cost by 10 to 20 percent.

And fourthly, forming an industrial chain. The DRI powder of 500 meshes is added into an electric furnace to be immediately melted to form a molten pool, the steelmaking time is shortened, the steel yield is increased, the existing long-flow factory building equipment is fully utilized, the electric furnace steelmaking is arranged at the front of a steel rolling factory building to replace a converter (because a large amount of air enters the converter hood to generate NO)_XC particles), continuously cast and rolled stainless steel plates, cold rolled steel plates, pressure vessel plates, cold rolled steel foils and the like to obtain product packaging containers, and form an industrial chain.

Treating blast furnace tail gas. The long-flow and long-life tail gas of automobile engine, especially diesel engine, is characterized by that it uses air as oxidant to provide heat for metallurgical chemical reaction, and can produce lots of nitrogen oxides NOx/C particles, and uses alkaline solution to make neutralization reaction, see reactions (5) and (6), only uses alkaline solution (see reactions (7) to (11) to make neutralization reaction), and can eradicate virus production and transmission, so that it can create a health and long-life living environment for the people.

(V) detailed description of the preferred embodiments

Raw material quality analysis and cost (see Table 2 anthracite quality analysis,%, gmol/Kg)

Note: the price of anthracite is 350 yuan/ton, every Kgmol 350/6.2243 is 56.23 yuan/Kgmol, the dosage is 56.23 x 80% is 44.98 yuan, and part of recovered C particles need to be supplemented.

TABLE 3 Mass analysis of iron ore concentrate,%, gmol/Kg

Note: market price per ton, hematite 581.66, imported ore 602.85 and magnetite 644.33

② all the three concentrates are processed by a Raymond machine to be 500 meshes, the water content is less than 10 percent, and the cost is 62 yuan/ton.

③ 1 ÷ (62.58 × 98%) -1.6306 is needed for hematite per ton of DRI powder, the cost is 948.43 yuan/ton, 1 ÷ (66.41% × 98%) 1.5365 for imported ore, the cost is 926.30 yuan/ton, 1 ÷ (68.95% × 98%) for magnetite is 1.4799, and the cost is 956.22 yuan/ton.

Example 1 Using ultra-fine hematite of-500 mesh containing less than 10% of water after processing as a raw material, a stainless steel plate, -DRI powder of-500 mesh, hydrogen carbon, etc. were produced to form an industrial chain (the first industrial chain of the present invention)

Chemical reaction equation design and calculation, using pure O₂"industry 8+ 1" replacing air as an oxidant, how to regulate the thermal balance of "four systems"? What substances are used to regulate the heat balance of the system is the invention for preparing' H₂The important key technical problem of the new fuel of the + CO new energy.

The discarded transparent plastic packaging bags in the market are all macromolecular compounds, such as Polystyrene (PS), and the density is 1.05-1.07 g/cm³The polypropylene glycol (HO) starts to decompose at the temperature of more than 75 ℃ and at the temperature of more than 200 ℃, and the density is 0.95-0.98 g/cm³(iii) the density of polypropylene (PP) is 0.90-0.91 g/cm³The high molecular compounds of the wastes are characterized by decomposing at a lower temperature, having low density and molecular weight of 400-2050, and not containing harmful elements such as N, S, P and the like, and can be used as a four-system heat balancing substance, and the high molecular compounds of the wastes are characterized in that: curing at 50-60 deg.C, grinding into powder of-150 meshes (85%) with ball mill/fan mill, and mixing with pure O₂As a carrier for dilute phase transportation (80-100 Kg/Nm)³) The polymer compound is shown in fig. 1 "↓5". See reactions (7) (8) (9) which^ΔG^o21.72, -16.51, -21.31, respectively, then the reactions (7) + (8) + (9) + (10), ∑^ΔG⁰The heat balance of the polymer compound was determined by using a gas-forming reaction and a dilute-phase transport polymer compound, and the heat balance was determined to be 21.72 to 16.51 to 21.31+42.09 to 25.94.

The stainless steel plate (Cr 18% + Ni 8%) has very wide application in the chemical engineering and construction industry, and is available at the market price of 15800 yuan/ton. Make full use of the factory building equipment of current long flow, set up the electric furnace steelmaking at the factory head, invest 6500 ten thousand yuan, annual production corrosion resistant plate 88 ten thousand tons, per ton DRI powder needs, yuan/ton: the total cost of the hematite 948.43, the cost of adding Cr and Ni 1568, the anthracite 48.84 and the NaOH powder 1600 (the recovery part is supplemented) is 948.43+1568+84.84+1600, which is 4201.27, and the cost is 88 ten thousand times 0.4201, 39.97 hundred million yuan.

Product yield value (GDP) one hundred million yuan: stainless steel 88 x 1.58 ═ 139.04, liquid carbon hydrogen 1586 ten thousand yuan, 139.04+0.158 ═ 139.198 million yuan in total, profit 139.198-30.97 ═ 108.228, GDP profit margin 108.228 ÷ 139.198 ═ 77.75%, investment recovery period 65 ÷ 139.198 x 12 x 30 ÷ 1.68 days.

Example 2 production of rolled steel sheet, DRI powder, liquid hydrocarbon and the like from imported iron ore concentrate as raw material (ZZK short process second chain of the invention)

Per ton of DRI powder, yuan/ton: the cost 962.30 of the imported iron ore concentrate is calculated by the reaction (7) (8 (9)), the heat balance point 10.0863 is 48.84 of anthracite and 1600 of NaOH powder (containing recovered NaOH powder), the total cost is 962.30+48.84+1600 is 2611.14, and the cost of raw materials is 0.2611 multiplied by 88 ten thousand to 22.98 million yuan.

The investment is 4000 ten thousand yuan, the existing long-flow factory building equipment is fully utilized to arrange an electric furnace for steel making at the front end of a steel rolling factory building, 88 ten thousand tons of annual cold rolled steel plates are produced, the market price of the product is 6000 yuan/ton, the initial rolling temperature is 1350 ℃, the final rolling temperature is 1250-1200 ℃, the product is produced into the product with the brand numbers of Q245R, Q345R, the grid thickness is 6-12 multiplied by (1250-1800) mm, and the product is sheared and overlapped and then is tempered in a sand pit by waste heat.

Product yield (GDP): 88 kX0.. 2611-52.8-billion element, liquid hydrocarbon 88 kX 0.1586-13.9557-billion element, total 52.8+ 13.9557-66.7568-billion element, annual profit 66.76-22.98-43.78, annual profit rate 43.78-66.76-65.58% and investment and recovery period 0.40-43.78-12-30-3.29 days.

Example 3 the magnetite is used as raw material to prepare pressure device plate, sponge iron, gaseous hydrogen carbon, etc. (ZZK short process third industry chain). The method fully utilizes the existing long-flow factory building equipment, and arranges electric furnace steel making, continuous casting and continuous rolling at the front end of a steel rolling mill, wherein the rolling temperature is 1350 ℃ and the final rolling temperature is 1250-1200 ℃, so that products with the brand numbers of DC03, DC04, SAE1006, SAE1008 and the like are generated, the thickness X is 0.3-0.5 multiplied by 900-1250 mm, the products are sheared and overlapped, the sand pit waste heat is tempered, and then the products are rolled into a pressure container plate with the market price of 6500 yuan/ton, the investment is 4000 ten thousand yuan, and 88 ten thousand of steel products are produced every year.

Raw material cost: consumption of DRI powder per ton, yuan/ton, magnetite 956.52, anthracite 84.84, NaOH powder 1600 (including recovery), total cost 956.52+48.84+1600 ═ 2605.30, 0.2065 × 88 ten thousand ═ 22.924 million yuan, GDP profit 73.26-22.924 ═ 50.336, profit margin 50.336 ÷ 73.26 ═ 68.71%, investment recovery period 0.4 ÷ 73.26 × 12 × 30 ═ 1.97 ÷ 50.336

Example 4 magnetite is used as raw material to prepare steel material of the third industrial chain, investment is 4000 ten thousand yuan, and the annual steel production is 88 ten thousand ton (see example 3). The steel production cost 22.924- (0.166 × 88+16.06) ═ 6.464 (the cost of NaOH powder + hydrogen carbon should be deducted). And then rolling steel foil with the thickness of 0.15-0.08 mm to produce ring-pull cans in the market, wherein two production lines are controlled by one computer, and 1000 x 2 is required to be 2000 ten thousand yuan for each investment. The average mass of the pop can is 35 g/can, and the pop can is produced by 10 g/can per year⁶X 98% ÷ 35 ═ 2.8 ten thousand, annual output value 2.8 × 88 ═ 246.4 million, can market unit price 0.75-2.00 yuan/one, take 1.30 yuan/one to calculate, then annual output value GDP 246.4 × 1.30 ═ 320.32 yuan, cost such as predicted power consumption and depreciation wage 1000 yuan/ten thousand, year 2.8 × 0.1 ═ 0.28, steel + can cost 6.464+0.28 ═ 6.774, GDP 320.32+6.774 ═ 327.094, simple year 313.57 yuan, interest rate: 313.5776 ÷ 327.09 ═ 95.87%, and the investment recovery period (0.4+0.2) ÷ 327.0g × 12 × 30 × 24 ═ 35.6 hours. The domestic sales volume is more than 3.66 hundred million, and the supply is not in demand.

Therefore, the investment of deep processing pop-top can is reduced from 3.29 days to 35.6 hours, which generates huge economic benefit compared with the traditional steel industry chain, and has the milestone contribution of Biao Dian!

Chemical reaction equation and^ΔG^olist of

1.0.5N+O₂＝＝＝NO₂，^ΔG^o＝7.75

2.NO₂+NO₂＝＝＝N₂O₄，-42.21

3.C+0.5O₂＝＝＝CO，-21.62

4.CO+CO＝＝＝CO₂+ C microparticles, -42.21

5.K₂O/KOH+N₂O₄＝＝＝KNO₃+H₂O，KNO₃Is a soluble nitrogen potassium fertilizer

6.CaO/Ca(OH)₂+N₂O₄＝＝＝Ca(NO₃)₂+H₂O，Ca(NO₃)₂Is soluble nitrogen calcium fertilizer

7.Fe₂O₃+SiO₂+2NaOH+3C＝＝＝2Fe+Na₂O·SiO₂+CO+H₂+CO₂，21.12

8.FeO+SiO₂+2NaOH+2C＝＝＝Fe+Na₂O·SiO₂+2CO+H₂，-16.51

9.H₂O_(g)+O₂+3C＝3CO+H₂ ^ΔG⁰ ₍₉₎Gas forming reaction (2-21.31)

10.H₂O_(g)+CO₂+2C＝2H₂+3CO, +42.04, gas making reaction

11.Na₂O·SiO₂+CaO+H₂O＝＝＝2NaOH+CaSiO₃↓ (water flushing dregs)

12.H₂+0.5O₂＝＝＝H₂O_(g)，-57.95

13.CO+0.5O₂＝＝＝CO₂，-67.63

TABLE 1 Critical temperature and Critical pressure for some gases

TABLE 1 Critical temperature and Critical pressure for some gases

Name of gas	Air (a)	H2	N2	CO	CO2	H2O(g)
							t critical deg.C	-14.06	-239.6	-146.9	-140.08	+31.0	+374.15
P critical MPa	3.77	1.32	3.456	3.498	7.53	22.565

Raw material quality analysis and cost:

TABLE 2 anthracite mass analysis,%, gmol

Composition (I)	C	H2	O in coal2 -	QLiquid for treating urinary tract infectionKc/Kg
					％	74.754	21.678	1.369	6636
gmol/Kg	6.2243	10.7317-	0.0428

TABLE 3 iron concentrate quality analysis

Primary references

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2. Yeda Lun, handbook of thermodynamic data of practical inorganic salts, publication of metallurgy industry, 2 months in 1981, Beijing

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