CN109593904A - A kind of environmental protection converter process for making - Google Patents
A kind of environmental protection converter process for making Download PDFInfo
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- CN109593904A CN109593904A CN201910020465.6A CN201910020465A CN109593904A CN 109593904 A CN109593904 A CN 109593904A CN 201910020465 A CN201910020465 A CN 201910020465A CN 109593904 A CN109593904 A CN 109593904A
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- waste gas
- gas treatment
- steel
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- filter screen
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000007613 environmental effect Effects 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000009628 steelmaking Methods 0.000 claims abstract description 72
- 239000012535 impurity Substances 0.000 claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 239000007921 spray Substances 0.000 claims abstract description 55
- 239000000919 ceramic Substances 0.000 claims abstract description 31
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 5
- 239000002912 waste gas Substances 0.000 claims description 105
- 238000010521 absorption reaction Methods 0.000 claims description 72
- 239000007789 gas Substances 0.000 claims description 45
- 239000000843 powder Substances 0.000 claims description 36
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 34
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 33
- 239000000292 calcium oxide Substances 0.000 claims description 33
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 30
- 239000000428 dust Substances 0.000 claims description 30
- 239000008188 pellet Substances 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000011324 bead Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to steelmaking technical field, specifically a kind of environmentally friendly converter process for making, environmental protection converter of the present invention includes the steel-making furnace body of pedestal and setting on the base；It further include smoke exhaust pipe, emission-control equipment, exhaust pipe, sewage pipe, impurity collecting box, No.1 filter screen, No.1 water pipe, water tank, No. two water pipes, water pump, motor and controller；The controller is used to control the work of converter；The emission-control equipment is arranged on the base by column, and emission-control equipment is connected to by smoke exhaust pipe with steel-making furnace body；By the filling ceramic bead in converter in layer, it is filled with the gap between steel, improves the heating conduction between steel and steel, improves the speed of steel-making；High temperature air is sprayed to filter screen by setting high temperature spray gun, so that molten steel and ceramic bead with quick separating and can be separated more complete, more molten steel can be collected into.
Description
Technical Field
The invention belongs to the technical field of steelmaking, and particularly relates to a steelmaking process of an environment-friendly steelmaking furnace.
Background
Steel is a general name of iron-carbon alloy with carbon content between 0.02 and 2.11 percent by mass, the application and research history of human beings on steel is quite long, but the preparation of steel is a high-cost and low-efficiency work until the invention of 19 th century Behcet's steelmaking method, nowadays, steel becomes one of the most used materials in the world with low price and reliable performance, and is an indispensable component in the building industry, manufacturing industry and daily life of people, and the steel is obtained by smelting pig iron for steelmaking in a steelmaking furnace according to a certain process.
In the prior art, when steel is smelted; after the steel raw materials are placed in the steelmaking furnace, a plurality of gaps exist between the steel blocks, so that the heat transfer between the steel is slow, and the dissolution speed of the steel is influenced; so that the technical solution is limited.
Disclosure of Invention
In order to make up the defects of the prior art, the problem that the heat transfer between steel materials is slow to influence the dissolution speed of the steel materials due to a plurality of gaps between steel blocks is solved; the invention provides an environment-friendly steelmaking process of a steelmaking furnace.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an environment-friendly steelmaking process of a steelmaking furnace, which comprises the following steps:
s1: laying a layer of steel to be smelted at the bottom of the environment-friendly steelmaking furnace, and then uniformly pouring ceramic pellets into the environment-friendly steelmaking furnace, wherein the ceramic pellets are used for filling gaps among the steel; after the ceramic small balls fill the gaps, laying the next layer of steel again, and pouring the steel into the ceramic small balls again; repeating for a plurality of times, and paving all the steel to be smelted in the environment-friendly steelmaking furnace;
s2: starting the environment-friendly steelmaking furnace for steelmaking, and spraying oxygen to the environment-friendly steelmaking furnace through an oxygen spraying gun to accelerate smelting;
s3: after smelting is finished, filtering the molten steel through a filter screen, separating the ceramic pellets from the molten steel, arranging a high-temperature spray gun on the upper part of the filter screen, and spraying high-temperature air to the filter screen by using the high-temperature spray gun to efficiently separate the molten steel from the ceramic pellets;
s4: collecting molten steel, and recycling the ceramic pellets for reuse;
the environment-friendly steel-making furnace comprises a base and a steel-making furnace body arranged on the base; the device also comprises a smoke exhaust pipe, a waste gas treatment device, an exhaust pipe, a blow-off pipe, an impurity collecting box, a first filter screen, a first water pipe, a water tank, a second water pipe, a water pump, a motor and a controller; the controller is used for controlling the operation of the steel furnace; the waste gas treatment device is arranged on the base through the upright post, is communicated with the steelmaking furnace body through the smoke exhaust pipe and is used for treating and purifying waste gas generated in the steelmaking furnace body; the waste gas treatment device is provided with an exhaust pipe, the exhaust pipe is used for discharging gas treated by the waste gas treatment device, and the lower side of the waste gas treatment device is communicated with an impurity collecting box through a blow-off pipe; the impurity collecting box is used for collecting dust impurities in the waste gas, and a first filter screen is arranged in the impurity collecting box; the first filter screen is used for filtering water in dust impurities; the water tank is arranged on the base and is communicated with the impurity collecting box through a first water pipe, and a water pump is arranged in the water tank; the water pump is provided with a second water pipe and supplies water to the waste gas treatment device through the second water pipe; the motor is arranged on the waste gas treatment device and acts on the waste gas treatment device; wherein,
the waste gas treatment device comprises a waste gas treatment box, an absorption unit, a mounting plate, a first air cylinder, a piston, a first spring, a piston rod, a first support plate, a second support plate, a first limit block, a second spring, a rope, a fixed pulley, a sliding plate, a sliding block, a second limit block, a third spring, a connecting rod, a spray head, a cam, a second air cylinder, a positioning plate, a first magnet, an annular air bag and a replacement opening; the side wall of the waste gas treatment box is communicated with a smoke exhaust pipe, the top of the waste gas treatment box is communicated with an exhaust pipe, the bottom of the waste gas treatment box is communicated with a sewage discharge pipe, the bottom of the waste gas treatment box is of a conical structure, and dust impurities can be prevented from being accumulated at the bottom of the waste gas treatment box due to the conical structure; the two sides of the waste gas treatment box are symmetrically provided with a first sliding chute; a sliding block is arranged in the first sliding groove in a sliding mode; one end of a second spring is fixedly connected to the lower side surface of the sliding block; the other end of the second spring is fixedly connected with the bottom wall of the first sliding groove, and the second spring is used for resetting the sliding block; one end of the connecting rod is hinged with the sliding block, and the other end of the connecting rod is hinged at the upper end of the spray head; the middle part of the spray head is hinged on the inner wall of the waste gas treatment box, the spray head is communicated with a second water pipe, and the spray head is used for spraying water to the interior of the waste gas treatment box; the first limiting block is arranged in the first sliding groove; the sliding plate is slidably mounted in the first sliding groove, the sliding plate is arranged between the sliding block and the first limiting block, an absorption unit is arranged on the sliding plate and used for absorbing sulfur dioxide gas in waste gas, a plurality of air holes are formed in the sliding plate and used for introducing air on the lower side of the sliding plate into the absorption unit, a groove is formed in the upper side face of the sliding plate, one end of a second air cylinder is hinged to the side wall of the groove, the other end of the second air cylinder is hinged to the positioning plate, and the four positioning plates clamp and fix the absorption unit together through the matching between the second air cylinder and the positioning plate; the cam is arranged on a transmission shaft of the motor and used for pushing the sliding plate to slide up and down; the annular air bag is arranged on the inner top wall of the waste gas treatment box, is positioned on the upper side of the absorption unit and is used for discharging gas discharged by the absorption unit through the exhaust pipe; the fixed pulley is arranged on the outer top wall of the waste gas treatment box, and a rope is wound on the fixed pulley; one end of the rope penetrates through the top wall of the waste gas treatment box and is fixedly connected with the sliding plate, and the other end of the rope penetrates through the first supporting plate and is fixedly connected with the second limiting block; a third spring is arranged between the second limiting block and the first supporting plate, and the second limiting block is used for driving the rope; the lower side surface of the first supporting plate is fixedly connected with one end of a piston rod; the other end of the piston rod is fixedly connected to the piston; the piston is slidably arranged in the first cylinder, and a first spring is arranged between the piston and the first cylinder; the first cylinder is arranged on the mounting plate and acts on the second cylinder and the annular air bag respectively, and the piston can drive the second cylinder and the annular air bag to contract when sliding downwards; the mounting plate is fixedly connected to the outer side wall of the waste gas treatment box; the second support plate is fixedly connected to the outer side wall of the waste gas treatment box; the replacing ports are symmetrically arranged on two sides of the waste gas treatment box, and the positions of the replacing ports correspond to the first supporting plate and the second supporting plate respectively; the replacement port is used for sliding out and sliding in the absorption unit; the first magnet is arranged on the inner side wall of the waste gas treatment box and acts on the absorption unit;
the absorption unit comprises a second filter screen, dustproof cloth, a second sliding groove, a second magnet, calcium oxide powder, a sleeve and a fourth spring; the second sliding groove is formed in the inner side wall of the sleeve, and a second magnet is arranged in the second sliding groove in a sliding mode; the second magnet is connected to the bottom of the second sliding groove through a fourth spring, the second magnet can compress the fourth spring under the driving of the first magnet, and the upper side and the lower side of the second magnet are both provided with a second filter screen; the second filter screen is of a rectangular hollow structure; the calcium oxide powder is placed inside the second filter screen and used for absorbing sulfur dioxide gas in waste gas; dustproof cloth sets up both ends about the sleeve, and dustproof cloth is arranged in avoiding calcium oxide powder to float and gets into the air.
Firstly, the first spring pushes the piston upwards, and the second cylinder extends and the second air is filled by the cooperation of the first cylinder, the piston, the second cylinder, the annular air bag and the first springThe cylinder pushes the positioning plate to clamp and fix the sleeve; the annular air bag expands and abuts against the sleeve, so that the gas in the absorption unit is prevented from diffusing out through the replacement port; the motor is started, the motor drives the cam to rotate, the sliding plate slides up and down through the matching between the cam and the sliding plate, the sliding block slides up and down under the driving of the sliding plate through the matching between the sliding plate, the sliding block and the second spring, and the sliding block, the connecting rod and the spray head are matched; the spray head is driven by the slide block to swing left and right; the water pump supplies water to the spray head through a second water pipe, the spray head sprays water to air in the waste gas treatment tank, the water makes dust and impurities in the waste gas heavier, so that the dust and impurities fall into the impurity collecting tank through the blow-off pipe, the water in the impurity collecting tank is filtered through the first filter screen and flows into the water tank for reutilization, and water resources are saved; slide drives sleeve up-and-down motion, make a magnet and sleeve relative motion of setting on exhaust-gas treatment case, when a magnet moves down for the sleeve, through the inter attraction between a magnet and No. two magnets, No. two magnets can compress No. four springs under the attraction of a magnet, a magnet continues to move down, the distance increase between a magnet and No. two magnets, when the appeal of a magnet is not enough to balance the elasticity of No. four springs, a magnet breaks away from No. two magnets, No. four spring recovery elasticity, thereby drive No. two magnets and rock from top to bottom, No. two magnets rock from top to bottom with the oxidation calcium powder in No. two filter screens, thereby will pile up the oxidation calcium powder of No. two filter screen bottoms and raise, when the waste gas after the shower nozzle edulcoration passes through the gas pocket and gets into in the absorption unit, can be abundant with the contact of oxidation calcium powder, thereby make the sulfur dioxide gas in the abundant absorption waste gas of oxidation calcium powder (sulfur dioxide and oxidation calcium powder can be with the oxidation calcium powder The reaction takes place, the chemical formula of the reaction is CaO + SO2＝CaSO3) (ii) a When calcium oxide powder needs to be replaced, only the absorption unit needs to be directly replaced, a new absorption unit is placed on the first supporting plate, the first supporting plate can downwards push the piston under the action of gravity of the new absorption unit, on one hand, the first air cylinder takes out the gas in the second air cylinder and the annular air bag, the first air cylinder and the annular air bag contract, the first air cylinder drives the positioning plate to be retracted into the groove, and meanwhile, the annular air bag and the suction air bag absorb the gas in the grooveThe collecting unit is separated, on the other hand, the first supporting plate drives one end of the rope to move downwards through the third spring and the second limiting block, the other end of the rope drives the sliding plate to slide upwards and abut against the first limiting block, the first supporting plate and the sliding plate are positioned on the same horizontal plane at the moment, a new absorbing unit positioned on the first supporting plate is pushed at the moment, the new absorbing unit is pushed to the sliding plate through the replacing opening, the new absorbing unit pushes the absorbing unit positioned on the sliding plate out of the waste gas treatment box, the old absorbing unit is pushed to the second supporting plate through the replacing opening to be placed and cooled, and after the new absorbing unit is pushed to the sliding plate, the first spring pushes the piston upwards again, so that the positioning plate clamps the sleeve tightly again; the annular air bag is expanded to abut against the sleeve, so that the calcium oxide powder can be simply and quickly replaced.
Preferably, a condensing chamber is arranged on the exhaust pipe; a plurality of rows of capillary pipelines penetrate through the condensation chamber; both ends of the capillary pipeline are communicated and arranged on the flow dividing pipe; the shunt pipe is arranged on the second water pipe and communicated with the second water pipe; the second water pipe supplies water for the capillary pipeline; the condensation chamber is communicated with the water tank through a third water pipe. No. two water pipes lead to water to the capillary pipeline, and exhaust high-temperature gas can be cooled after the processing of exhaust-gas treatment incasement passes the capillary pipeline, and the vapor that contains in the high-temperature gas can condense into liquid water, and liquid water after the condensation can be through cyclic utilization in the No. three water pipe flow meeting water tank.
Preferably, the first support plate and the second support plate are both provided with a roller; the rolling barrel is used for reducing the friction force between the absorption unit and the first support plate and the second support plate. When the absorption unit is replaced, the absorption unit can be pushed more easily, so that the operation of replacing the absorption unit is simpler and more convenient.
Preferably, the included angle formed by the first filter screen and the bottom wall of the impurity collecting box is 45-60 degrees, and the first filter screen is arranged below the sewage discharge pipe; avoid impurity to pile up and block up the mesh on filter screen No. one. The dust impurity that drops from the blow off pipe can directly fall on filter screen, because a filter screen slope sets up in impurity collecting box for dust impurity can be in the bottom of impurity collecting box with gliding of self gravity, avoids dust impurity to block up filter screen mesh No. one, and rivers through the shower nozzle spun can be through the blow off pipe whereabouts, wash a filter screen, further avoid the jam of filter screen mesh No. one.
Preferably, the spray heads are double-layer spray heads, the two spray heads are communicated through rubber hoses, and the rubber hoses are used for increasing the swing amplitude of the spray heads. When the shower nozzle received the effect horizontal hunting of slider down, rubber hose can take place deformation for the shower nozzle spray the area grow, improve the filter effect to dust impurity, can make the rivers through rubber hose disperse more when taking place deformation through rubber hose, thereby make shower nozzle spun rivers disperse more, further improve the filter effect to dust impurity.
Preferably, the two adjacent rows of capillary pipelines are arranged in a staggered manner, and a gap for air flowing is arranged between the two adjacent capillary pipelines, so that the contact area between the capillary pipelines and air is increased. The condensation effect is improved, and the recovery rate of the moisture in the exhaust gas is improved.
The invention has the following beneficial effects:
1. according to the environment-friendly steelmaking process of the steelmaking furnace, gaps among the steel materials are filled through the ceramic balls filled in the steelmaking furnace layer by layer, so that the heat conduction performance between the steel materials is improved, and the steelmaking speed is improved; the high-temperature spray gun is arranged to spray high-temperature air to the filter screen, so that the molten steel and the ceramic balls can be quickly and completely separated, and more molten steel can be collected.
2. According to the environment-friendly steel-making furnace, the waste gas treatment device, the impurity collecting box, the first filter screen, the water tank and other structures are arranged, so that the purification rate of the spray head on dust and impurities and the absorption rate of calcium oxide powder on sulfur dioxide are greatly improved, the waste gas generated in the steel making of the steel-making furnace body is efficiently purified and absorbed, and the emission of the dust and impurities and the sulfur dioxide is greatly reduced; simultaneously, through the arrangement of the first support plate, the absorption unit, the second support plate and other structures, the calcium oxide powder can be simply and quickly replaced.
3. According to the environment-friendly steel-making furnace adopted by the invention, the condensing chamber is arranged on the exhaust pipe, and the high-temperature gas discharged after treatment in the waste gas treatment tank is cooled, so that the water vapor contained in the high-temperature gas can be condensed into liquid water, the condensed liquid water can be recycled in the water tank through the third water pipe, and the utilization rate of water resources is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a front view of an eco-friendly steel furnace employed in the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
in the figure: a smoke exhaust pipe 1, an exhaust gas treatment device 2, an exhaust gas treatment box 201, an absorption unit 202, a mounting plate 203, a first cylinder 204, a piston 205, a first spring 206, a piston rod 207, a first supporting plate 208, a second supporting plate 209, a first limit block 210, a second spring 211, a rope 212, a fixed pulley 213, a sliding plate 214, a sliding block 215, a second limit block 216, a third spring 217, a connecting rod 218, a spray head 219, a cam 220, a second cylinder 221, the device comprises a positioning plate 222, a first magnet 223, an annular air bag 224, a replacement port 225, a second filter screen 226, dustproof cloth 227, a second sliding groove 228, a second magnet 229, calcium oxide powder 230, a sleeve 231, a drum 232, a rubber hose 233, an exhaust pipe 3, a condensation chamber 31, a capillary pipeline 32, a shunt pipe 33, a third water pipe 34, a drain pipe 4, an impurity collecting box 5, a first filter screen 6, a first water pipe 7, a water tank 8 and a second water pipe 9.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the steelmaking process of the environmental-friendly steelmaking furnace according to the present invention includes the following steps:
s1: laying a layer of steel to be smelted at the bottom of the environment-friendly steelmaking furnace, and then uniformly pouring ceramic pellets into the environment-friendly steelmaking furnace, wherein the ceramic pellets are used for filling gaps among the steel; after the ceramic small balls fill the gaps, laying the next layer of steel again, and pouring the steel into the ceramic small balls again; repeating for a plurality of times, and paving all the steel to be smelted in the environment-friendly steelmaking furnace;
s2: starting the environment-friendly steelmaking furnace for steelmaking, and spraying oxygen to the environment-friendly steelmaking furnace through an oxygen spraying gun to accelerate smelting;
s3: after smelting is finished, filtering the molten steel through a filter screen, separating the ceramic pellets from the molten steel, arranging a high-temperature spray gun on the upper part of the filter screen, and spraying high-temperature air to the filter screen by using the high-temperature spray gun to efficiently separate the molten steel from the ceramic pellets;
s4: collecting molten steel, and recycling the ceramic pellets for reuse;
the environment-friendly steel-making furnace comprises a base and a steel-making furnace body arranged on the base; the device also comprises a smoke exhaust pipe 1, a waste gas treatment device 2, an exhaust pipe 3, a blow-off pipe 4, an impurity collecting box 5, a first filter screen 6, a first water pipe 7, a water tank 8, a second water pipe 9, a water pump, a motor and a controller; the controller is used for controlling the operation of the steel furnace; the waste gas treatment device 2 is arranged on the base through an upright post, the waste gas treatment device 2 is communicated with the steelmaking furnace body through a smoke exhaust pipe 1, and the waste gas treatment device 2 is used for treating and purifying waste gas generated in the steelmaking furnace body; the exhaust gas treatment device 2 is provided with an exhaust pipe 3, the exhaust pipe 3 is used for discharging gas treated by the exhaust gas treatment device 2, and the lower side of the exhaust gas treatment device 2 is communicated with an impurity collecting box 5 through a discharge pipe 4; the impurity collecting box 5 is used for collecting dust impurities in the waste gas, and a first filter screen 6 is arranged in the impurity collecting box 5; the first filter screen 6 is used for filtering water in dust impurities; the water tank 8 is arranged on the base, the water tank 8 is communicated with the impurity collecting box 5 through a first water pipe 7, and a water pump is arranged in the water tank 8; the water pump is provided with a second water pipe 9 and supplies water to the waste gas treatment device 2 through the second water pipe 9; the motor is arranged on the waste gas treatment device 2 and acts on the waste gas treatment device 2; wherein,
the waste gas treatment device 2 comprises a waste gas treatment box 201, an absorption unit 202, a mounting plate 203, a first air cylinder 204, a piston 205, a first spring 206, a piston rod 207, a first supporting plate 208, a second supporting plate 209, a first limiting block 210, a second spring 211, a rope 212, a fixed pulley 213, a sliding plate 214, a sliding block 215, a second limiting block 216, a third spring 217, a connecting rod 218, a spray head 219, a cam 220, a second air cylinder 221, a positioning plate 222, a first magnet 223, an annular air bag 224 and a replacement opening 225; the side wall of the waste gas treatment box 201 is communicated with a smoke exhaust pipe 1, the top of the waste gas treatment box 201 is communicated with an exhaust pipe 3, the bottom of the waste gas treatment box 201 is communicated with a sewage discharge pipe 4, the bottom of the waste gas treatment box 201 is of a conical structure, and dust impurities can be prevented from being accumulated at the bottom of the waste gas treatment box 201 by the conical structure; a first sliding groove is symmetrically formed in the two sides of the waste gas treatment box 201; a sliding block 215 is arranged in the first sliding groove in a sliding mode; one end of a second spring 211 is fixedly connected to the lower side surface of the sliding block 215; the other end of the second spring 211 is fixedly connected to the bottom wall of the first sliding groove, and the second spring 211 is used for resetting the sliding block 215; one end of the connecting rod 218 is hinged with the sliding block 215, and the other end of the connecting rod 218 is hinged with the upper end of the spray head 219; the middle part of the spray head 219 is hinged on the inner wall of the waste gas treatment box 201, the spray head 219 is communicated with the second water pipe 9, and the spray head 219 is used for spraying water to the interior of the waste gas treatment box 201; the first limiting block 210 is arranged in the first sliding groove; the sliding plate 214 is slidably mounted in the first sliding groove, the sliding plate 214 is arranged between the sliding block 215 and the first limiting block 210, the absorption unit 202 is placed on the sliding plate 214, the absorption unit 202 is used for absorbing sulfur dioxide gas in waste gas, a plurality of air holes are formed in the sliding plate 214 and used for introducing air on the lower side of the sliding plate 214 into the absorption unit 202, a groove is formed in the upper side face of the sliding plate 214, one end of a second air cylinder 221 is hinged to the side wall of the groove, the other end of the second air cylinder 221 is hinged to the positioning plate 222, and the four positioning plates 222 clamp and fix the absorption unit 202 together through the matching between the second air cylinder 221 and the positioning plate 222; the cam 220 is arranged on a transmission shaft of the motor, and the cam 220 is used for pushing the sliding plate 214 to slide up and down; the annular air bag 224 is arranged on the inner top wall of the exhaust gas treatment box 201, the annular air bag 224 is positioned at the upper side of the absorption unit 202, and the annular air bag 224 is used for discharging the gas discharged from the absorption unit 202 through the exhaust pipe 3; the fixed pulley 213 is arranged on the outer top wall of the waste gas treatment box 201, and a rope 212 is wound on the fixed pulley 213; one end of the rope 212 penetrates through the top wall of the waste gas treatment box 201 and is fixedly connected with the sliding plate 214, and the other end of the rope 212 penetrates through the first supporting plate 208 and is fixedly connected with the second limiting block 216; a third spring 217 is arranged between the second limiting block 216 and the first supporting plate 208, and the second limiting block 216 is used for driving the rope 212; one end of a piston rod 207 is fixedly connected to the lower side surface of the first supporting plate 208; the other end of the piston rod 207 is fixedly connected to the piston 205; the piston 205 is slidably mounted in the first cylinder 204, and a first spring 206 is arranged between the piston 205 and the first cylinder 204; the first cylinder 204 is arranged on the mounting plate 203, the first cylinder 204 acts on the second cylinder 221 and the annular air bag 224 respectively, and the piston 205 can drive the second cylinder 221 and the annular air bag 224 to contract when sliding downwards; the mounting plate 203 is fixedly connected to the outer side wall of the waste gas treatment box 201; the second support plate 209 is fixedly connected to the outer side wall of the waste gas treatment box 201; the replacement ports 225 are symmetrically arranged on two sides of the waste gas treatment box 201, and the positions of the replacement ports 225 correspond to the first support plate 208 and the second support plate 209 respectively; the replacement port 225 is used for sliding out and sliding in of the absorption unit 202; the first magnet 223 is arranged on the inner side wall of the waste gas treatment box 201, and the first magnet 223 acts on the absorption unit 202;
the absorption unit 202 comprises a second filter screen 226, dustproof cloth 227, a second chute 228, a second magnet 229, calcium oxide powder 230, a sleeve 231 and a fourth spring; the second sliding groove 228 is formed in the inner side wall of the sleeve 231, and a second magnet 229 is slidably mounted in the second sliding groove 228; the second magnet 229 is connected to the bottom of the second sliding groove 228 through a fourth spring, the second magnet 229 can be driven by the first magnet 223 to compress the fourth spring, and the upper side and the lower side of the second magnet 229 are both provided with a second filter screen 226; the second filter screen 226 is a rectangular hollow structure; the calcium oxide powder 230 is placed inside the second filter screen 226, and the calcium oxide powder 230 is used for absorbing sulfur dioxide gas in the waste gas; the dustproof cloth 227 is arranged at the upper end and the lower end of the sleeve 231, and the dustproof cloth 227 is used for preventing the calcium oxide powder 230 from drifting into the air.
Firstly, the first spring 206 pushes the piston 205 upwards, the second cylinder 221 extends through the cooperation among the first cylinder 204, the piston 205, the second cylinder 221, the annular air bag 224 and the first spring 206, and the second cylinder 221 pushes the positioning plate 222 to clamp and fix the sleeve 231; the annular bladder 224 expands against the sleeve 231, preventing the escape of gas from the absorption unit 202 through the replacement port 225; the motor is started, the motor drives the cam 220 to rotate, the sliding plate 214 slides up and down through the matching between the cam 220 and the sliding plate 214, the sliding block 215 slides up and down under the driving of the sliding plate 214 through the matching between the sliding plate 214, the sliding block 215 and the second spring 211, and the sliding block 215, the connecting rod 218 and the spray head 219 are matched; so that the spray head 219 is driven by the slide block 215 to swing left and right; the water pump supplies water to the spray head 219 through the second water pipe 9, the spray head 219 sprays water to the air in the waste gas treatment tank 201, the water makes dust and impurities in the waste gas heavier, so that the dust and impurities fall into the impurity collecting tank 5 through the sewage discharge pipe 4, the water in the impurity collecting tank 5 is filtered through the first filter screen 6 and flows into the water tank 8 for reutilization, and water resources are saved; slide 214 drives sleeve 231 up-and-down motion for setting up magnet 223 and sleeve 231 relative motion on exhaust-gas treatment case 201, when magnet 223 moved down for sleeve 231, through the inter attraction between magnet 223 and magnet 229 No. two, magnet 229 can compress No. four springs, magnet 223 No. one under attraction, magnet 231 No. twoMagnet 223 continues to move down, the distance between magnet 223 and magnet 229 No. two increases, when the appeal of magnet 223 is not enough to balance the elasticity of spring No. four, magnet 223 breaks away from magnet 229 No. two, spring No. four resumes elasticity, thereby drive magnet 229 No. two and rock from top to bottom, magnet 229 rocks calcium oxide powder 230 from top to bottom in filter screen 226 No. two, thereby will pile up calcium oxide powder 230 at filter screen 226 No. two bottoms and raise, waste gas after the edulcoration of shower nozzle 219 passes through the gas pocket and gets into in the absorption unit 202, can be abundant with calcium oxide powder 230 contact, thereby make calcium oxide powder 230 abundant absorption sulfur dioxide gas in the waste gas (sulfur dioxide can react with calcium oxide powder 230, the chemical equation of reaction is CaO + SO2＝CaSO3) (ii) a When the calcium oxide powder 230 needs to be replaced, only the absorption unit 202 needs to be replaced directly, a new absorption unit 202 is placed on the first supporting plate 208, the first supporting plate 208 pushes the piston 205 downwards under the action of the gravity of the new absorption unit 202, on one hand, the first air cylinder 204 extracts the air in the second air cylinder 221 and the annular air bag 224, so that the first air cylinder 204 and the annular air bag 224 contract, the first air cylinder 204 drives the positioning plate 222 to retract into the groove, meanwhile, the annular air bag 224 is separated from the absorption unit 202, on the other hand, the first supporting plate 208 drives one end of the rope 212 to move downwards through the third spring 217 and the second limiting block 216, the other end of the rope 212 drives the sliding plate 214 to slide upwards and abut against the first limiting block 210, at the moment, the first supporting plate 208 and the sliding plate 214 are positioned on the same horizontal plane, at the moment, the new absorption unit 202 positioned on the first supporting plate 208 is pushed, the new absorption unit 202 is pushed, the new absorption unit 202 pushes the absorption unit 202 on the sliding plate 214 out of the exhaust gas treatment box 201, the old absorption unit 202 is pushed to the second support plate 209 through the replacement port 225 to be placed and cooled, and after the new absorption unit 202 is pushed to the sliding plate 214, the first spring 206 pushes the piston 205 upwards again, so that the positioning plate 222 clamps and fixes the sleeve 231 again; the annular bladder 224 is inflated against the sleeve 231 so that the calcium oxide powder 230 can be replaced simply and quickly.
As an embodiment of the present invention, the exhaust pipe 3 is provided with a condensation chamber 31; a plurality of rows of capillary pipelines 32 are arranged in the condensation chamber 31 in a penetrating way; two ends of the capillary pipeline 32 are communicated with and arranged on the shunt pipe 33; the shunt pipe 33 is arranged on the second water pipe 9, and the shunt pipe 33 is communicated with the second water pipe 9; the second water pipe 9 supplies water for the capillary pipeline 32; the condensation chamber 31 is communicated with the water tank 8 through a third water pipe 34. The second water pipe 9 is used for supplying water to the capillary pipeline 32, high-temperature gas discharged after being treated in the waste gas treatment box 201 passes through the capillary pipeline 32 and then is cooled, water vapor contained in the high-temperature gas is condensed into liquid water, and the condensed liquid water flows through the third water pipe 34 and is recycled in the water tank 8.
As an embodiment of the present invention, the first support plate 208 and the second support plate 209 are both provided with a drum 232; the roller 232 is used for reducing the friction between the absorption unit 202 and the first support plate 208 and the second support plate 209. When the absorption unit 202 is replaced, the absorption unit 202 can be pushed more easily, and the operation of replacing the absorption unit 202 is simpler.
As an embodiment of the invention, the included angle formed by the first filter screen 6 and the bottom wall of the impurity collecting box 5 is 45-60 degrees, and the first filter screen 6 is arranged below the sewage discharge pipe 4; the impurities are prevented from being accumulated on the first filter screen 6 to block the meshes. On the dust impurity that drops from blow off pipe 4 can directly drop filter screen 6, because filter screen 6 slopes to set up in impurity collecting box 5 for dust impurity can be in the bottom of impurity collecting box 5 with gliding of self gravity, avoid dust impurity to block up filter screen 6 mesh, rivers through shower nozzle 219 spun can be through 4 whereabouts of blow off pipe, wash filter screen 6, further avoid the jam of filter screen 6 mesh.
As an embodiment of the present invention, the spray head 219 is a double-layer spray head 219, and the two spray heads 219 are communicated through a rubber hose 233, and the rubber hose 233 is used to increase the swing amplitude of the spray head 219. When shower nozzle 219 receives slider 215's effect horizontal hunting, rubber hose 233 can take place deformation for shower nozzle 219 sprays the area grow, improves the filter effect to dust impurity, can make the rivers through rubber hose 233 more disperse when taking place deformation through rubber hose 233, thereby makes shower nozzle 219 spun rivers more disperse, further improves the filter effect to dust impurity.
As an embodiment of the present invention, the capillary channels 32 in two adjacent rows are arranged in a staggered manner, and a gap for air to flow is arranged between two adjacent capillary channels 32, so as to increase a contact area between the capillary channels 32 and air. The condensation effect is improved, and the recovery rate of the moisture in the exhaust gas is improved.
When the environment-friendly steelmaking furnace is used, a layer of steel to be smelted is laid at the bottom of the environment-friendly steelmaking furnace, and then ceramic pellets are uniformly poured into the environment-friendly steelmaking furnace and are used for filling gaps among the steel; after the ceramic small balls fill the gaps, laying the next layer of steel again, and pouring the steel into the ceramic small balls again; repeating for a plurality of times, and paving all the steel to be smelted in the environment-friendly steelmaking furnace; starting the environment-friendly steelmaking furnace for steelmaking, and spraying oxygen to the environment-friendly steelmaking furnace through an oxygen spraying gun to accelerate smelting; the first spring 206 pushes the piston 205 upwards, the second cylinder 221 extends through the cooperation among the first cylinder 204, the piston 205, the second cylinder 221, the annular air bag 224 and the first spring 206, and the second cylinder 221 pushes the positioning plate 222 to clamp and fix the sleeve 231; the annular bladder 224 expands against the sleeve 231, preventing the escape of gas from the absorption unit 202 through the replacement port 225; the motor is started, the motor drives the cam 220 to rotate, the sliding plate 214 slides up and down through the matching between the cam 220 and the sliding plate 214, the sliding block 215 slides up and down under the driving of the sliding plate 214 through the matching between the sliding plate 214, the sliding block 215 and the second spring 211, and the sliding block 215, the connecting rod 218 and the spray head 219 are matched; so that the spray head 219 is driven by the slide block 215 to swing left and right; the water pump supplies water into the second water pipe 9, the second water pipe 9 leads water into the capillary pipeline 32, high-temperature gas discharged after being treated in the waste gas treatment tank 201 passes through the capillary pipeline 32 and then is cooled, water vapor contained in the high-temperature gas can be condensed into liquid water, and the condensed liquid water flows into the water tank 8 through the third water pipe 34 and can be recycled; recanalization of water passing through capillary channelsWater is supplied to the spray head 219 through the second water pipe 9, the spray head 219 sprays water to air in the waste gas treatment tank 201, the water makes dust impurities in waste gas heavy, so that the dust impurities fall into the impurity collecting tank 5 through the sewage discharge pipe 4, the dust impurities falling from the sewage discharge pipe 4 can directly fall onto the first filter screen 6, the first filter screen 6 is obliquely arranged in the impurity collecting tank 5, so that the dust impurities can slide down to the bottom of the impurity collecting tank 5 under the action of self gravity, the mesh of the first filter screen 6 is prevented from being blocked by the dust impurities, water flow sprayed out through the spray head 219 can fall through the sewage discharge pipe 4, the first filter screen 6 is washed, and the mesh of the first filter screen 6 is further prevented from being blocked; the water in the impurity collecting box 5 is filtered by the first filter screen 6 and flows into the water tank 8 for reuse, so that water resources are saved; the sliding plate 214 drives the sleeve 231 to move up and down, so that the first magnet 223 and the second magnet 229 arranged on the waste gas treatment box 201 move relative to each other, when the first magnet 223 moves downward relative to the sleeve 231, the second magnet 229 is attracted by the first magnet 223 to compress the fourth spring, the first magnet 223 moves downward continuously, the distance between the first magnet 223 and the second magnet 229 increases, when the attraction of the first magnet 223 is not enough to balance the elasticity of the fourth spring, the first magnet 223 is separated from the second magnet 229, the fourth spring recovers elasticity, so that the second magnet 229 is driven to shake up and down, the second magnet 229 shakes the calcium oxide powder 230 in the second filter screen 226 up and down, so that the calcium oxide powder 230 accumulated at the bottom of the second filter screen 226 is lifted up, and waste gas after impurity removal by the spray head 219 enters the absorption unit 202 through the air hole, can be fully contacted with the calcium oxide powder 230, SO that the calcium oxide powder 230 can fully absorb sulfur dioxide gas sulfur dioxide in the waste gas and react with the calcium oxide powder 230, and the chemical equation of the reaction is CaO + SO2＝CaSO3(ii) a When the calcium oxide powder 230 needs to be replaced, only the absorption unit 202 needs to be replaced directly, a new absorption unit 202 is placed on the first supporting plate 208, the first supporting plate 208 can push the piston 205 downwards under the action of the gravity of the new absorption unit 202, and on one hand, the first air cylinder 204 extracts the gas in the second air cylinder 221 and the annular air bag 224, so that the first air cylinder 204 and the annular air bag 224 contract, the first air cylinder 204 drives the positioning plate 222 to retract into the groove, and the annular air bag 224 is separated from the absorption unit 202, on the other hand, the first supporting plate 208 drives one end of the rope 212 to move downwards through the third spring 217 and the second limiting block 216, the other end of the rope 212 drives the sliding plate 214 to slide upwards and abut against the first limiting block 210, at this time, the first supporting plate 208 and the sliding plate 214 are positioned on the same horizontal plane, the new absorption unit 202 positioned on the first supporting plate 208 is pushed, the new absorption unit 202 is pushed into the sliding plate 214 through the replacement port 225, the new absorption unit 202 pushes the absorption unit 202 positioned on the sliding plate 214 out of the exhaust gas treatment tank 201, the old absorption unit 202 is pushed onto the second supporting plate 209 through the replacement port 225 for cooling, after the new absorption unit 202 is pushed onto the sliding plate 214, the first spring 206 pushes the piston 205 upwards again, so that the positioning plate 222 clamps and fixes the sleeve 231 again; the annular bladder 224 is inflated against the sleeve 231 so that the calcium oxide powder 230 can be simply and quickly replaced; after smelting is finished, filtering the molten steel through a filter screen, separating the ceramic pellets from the molten steel, arranging a high-temperature spray gun on the upper part of the filter screen, and spraying high-temperature air to the filter screen by using the high-temperature spray gun to efficiently separate the molten steel from the ceramic pellets; collecting molten steel, and recycling the ceramic pellets for reuse.
The front, the back, the left, the right, the upper and the lower are all based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (6)
1. An environment-friendly steelmaking process of a steelmaking furnace is characterized in that: the process comprises the following steps:
s1: laying a layer of steel to be smelted at the bottom of the environment-friendly steelmaking furnace, and then uniformly pouring ceramic pellets into the environment-friendly steelmaking furnace, wherein the ceramic pellets are used for filling gaps among the steel; after the ceramic small balls fill the gaps, laying the next layer of steel again, and pouring the steel into the ceramic small balls again; repeating for a plurality of times, and paving all the steel to be smelted in the environment-friendly steelmaking furnace;
s2: starting the environment-friendly steelmaking furnace for steelmaking, and spraying oxygen to the environment-friendly steelmaking furnace through an oxygen spraying gun to accelerate smelting;
s3: after smelting is finished, filtering the molten steel through a filter screen, separating the ceramic pellets from the molten steel, arranging a high-temperature spray gun on the upper part of the filter screen, and spraying high-temperature air to the filter screen by using the high-temperature spray gun to efficiently separate the molten steel from the ceramic pellets;
s4: collecting molten steel, and recycling the ceramic pellets for reuse;
the environment-friendly steel-making furnace comprises a base and a steel-making furnace body arranged on the base; the device also comprises a smoke exhaust pipe (1), a waste gas treatment device (2), an exhaust pipe (3), a blow-off pipe (4), an impurity collecting box (5), a first filter screen (6), a first water pipe (7), a water tank (8), a second water pipe (9), a water pump, a motor and a controller; the controller is used for controlling the operation of the steel furnace; the waste gas treatment device (2) is arranged on the base through the upright post, the waste gas treatment device (2) is communicated with the steelmaking furnace body through the smoke exhaust pipe (1), and the waste gas treatment device (2) is used for treating and purifying waste gas generated in the steelmaking furnace body; an exhaust pipe (3) is arranged on the waste gas treatment device (2), the exhaust pipe (3) is used for discharging gas treated by the waste gas treatment device (2), and the lower side of the waste gas treatment device (2) is communicated with an impurity collecting box (5) through a discharge pipe (4); the impurity collecting box (5) is used for collecting dust and impurities in the waste gas, and a first filter screen (6) is arranged in the impurity collecting box (5); the first filter screen (6) is used for filtering water in dust and impurities; the water tank (8) is arranged on the base, the water tank (8) is communicated with the impurity collecting box (5) through a first water pipe (7), and a water pump is arranged in the water tank (8); the water pump is provided with a second water pipe (9), and the water pump supplies water to the waste gas treatment device (2) through the second water pipe (9); the motor is arranged on the waste gas treatment device (2) and acts on the waste gas treatment device (2); wherein,
the waste gas treatment device (2) comprises a waste gas treatment box (201), an absorption unit (202), a mounting plate (203), a first cylinder (204), a piston (205), a first spring (206), a piston rod (207), a first support plate (208), a second support plate (209), a first limit block (210), a second spring (211), a rope (212), a fixed pulley (213), a sliding plate (214), a sliding block (215), a second limit block (216), a third spring (217), a connecting rod (218), a spray head (219), a cam (220), a second cylinder (221), a positioning plate (222), a first magnet (223), an annular air bag (224) and a replacement port (225); the side wall of the waste gas treatment box (201) is communicated with a smoke exhaust pipe (1), the top of the waste gas treatment box (201) is communicated with an exhaust pipe (3), the bottom of the waste gas treatment box (201) is communicated with a sewage discharge pipe (4), the bottom of the waste gas treatment box (201) is of a conical structure, and dust and impurities can be prevented from being accumulated at the bottom of the waste gas treatment box (201) due to the conical structure; two sides of the waste gas treatment box (201) are symmetrically provided with a first sliding chute; a sliding block (215) is arranged in the first sliding groove in a sliding manner; one end of a second spring (211) is fixedly connected to the lower side surface of the sliding block (215); the other end of the second spring (211) is fixedly connected to the bottom wall of the first sliding groove, and the second spring (211) is used for resetting the sliding block (215); one end of the connecting rod (218) is hinged with the sliding block (215), and the other end of the connecting rod (218) is hinged at the upper end of the spray head (219); the middle part of the spray head (219) is hinged to the inner wall of the waste gas treatment box (201), the spray head (219) is communicated with the second water pipe (9), and the spray head (219) is used for spraying water to the interior of the waste gas treatment box (201); the first limiting block (210) is arranged in the first sliding groove; the sliding plate (214) is slidably mounted in the first sliding groove, the sliding plate (214) is arranged between the sliding block (215) and the first limiting block (210), the absorption unit (202) is placed on the sliding plate (214), the absorption unit (202) is used for absorbing sulfur dioxide gas in waste gas, a plurality of air holes are formed in the sliding plate (214), the air holes are used for introducing air on the lower side of the sliding plate (214) into the absorption unit (202), a groove is formed in the upper side surface of the sliding plate (214), one end of a second air cylinder (221) is hinged to the side wall of the groove, the other end of the second air cylinder (221) is hinged to the positioning plate (222), and the four positioning plates (222) clamp and fix the absorption unit (202) together through matching between the second air cylinder (221) and the positioning plate (222); the cam (220) is arranged on a transmission shaft of the motor, and the cam (220) is used for pushing the sliding plate (214) to slide up and down; the annular air bag (224) is arranged on the inner top wall of the exhaust gas treatment box (201), the annular air bag (224) is positioned on the upper side of the absorption unit (202), and the annular air bag (224) is used for discharging gas discharged from the absorption unit (202) through the exhaust pipe (3); the fixed pulley (213) is arranged on the outer top wall of the waste gas treatment box (201), and a rope (212) is wound on the fixed pulley (213); one end of the rope (212) penetrates through the top wall of the waste gas treatment box (201) and is fixedly connected with the sliding plate (214), and the other end of the rope (212) penetrates through the first supporting plate (208) and is fixedly connected with the second limiting block (216); a third spring (217) is arranged between the second limiting block (216) and the first supporting plate (208), and the second limiting block (216) is used for driving the rope (212); one end of a piston rod (207) is fixedly connected to the lower side surface of the first supporting plate (208); the other end of the piston rod (207) is fixedly connected to the piston (205); the piston (205) is slidably mounted in the first cylinder (204), and a first spring (206) is arranged between the piston (205) and the first cylinder (204); the first cylinder (204) is arranged on the mounting plate (203), the first cylinder (204) acts on the second cylinder (221) and the annular air bag (224) respectively, and the piston (205) can drive the second cylinder (221) and the annular air bag (224) to contract when sliding downwards; the mounting plate (203) is fixedly connected to the outer side wall of the waste gas treatment box (201); the second support plate (209) is fixedly connected to the outer side wall of the waste gas treatment box (201); the replacing ports (225) are symmetrically arranged on two sides of the waste gas treatment box (201), and the positions of the replacing ports (225) correspond to the first supporting plate (208) and the second supporting plate (209) respectively; the replacement port (225) is used for sliding out and sliding in the absorption unit (202); the first magnet (223) is arranged on the inner side wall of the waste gas treatment box (201), and the first magnet (223) acts on the absorption unit (202);
the absorption unit (202) comprises a second filter screen (226), dustproof cloth (227), a second sliding groove (228), a second magnet (229), calcium oxide powder (230), a sleeve (231) and a fourth spring; the second sliding groove (228) is formed in the inner side wall of the sleeve (231), and a second magnet (229) is installed in the second sliding groove (228) in a sliding mode; the second magnet (229) is connected to the bottom of the second sliding groove (228) through a fourth spring, the second magnet (229) can compress the fourth spring under the driving of the first magnet (223), and the upper side and the lower side of the second magnet (229) are provided with second filter screens (226); the second filter screen (226) is of a rectangular hollow structure; the calcium oxide powder (230) is placed inside the second filter screen (226), and the calcium oxide powder (230) is used for absorbing sulfur dioxide gas in waste gas; the dustproof cloth (227) is arranged at the upper end and the lower end of the sleeve (231), and the dustproof cloth (227) is used for preventing calcium oxide powder (230) from drifting into the air.
2. The environment-friendly steelmaking process of a steel furnace as claimed in claim 1, wherein: a condensing chamber (31) is arranged on the exhaust pipe (3); a plurality of rows of capillary pipelines (32) are arranged in the condensation chamber (31) in a penetrating way; both ends of the capillary pipeline (32) are communicated with and arranged on the shunt pipe (33); the shunt pipe (33) is arranged on the second water pipe (9), and the shunt pipe (33) is communicated with the second water pipe (9); the second water pipe (9) supplies water for the capillary pipeline (32); the condensation chamber (31) is communicated with the water tank (8) through a third water pipe (34).
3. The environment-friendly steelmaking process of a steel furnace as claimed in claim 1, wherein: the first support plate (208) and the second support plate (209) are both provided with a roller (232); the roller (232) is used for reducing the friction force between the absorption unit (202) and the first support plate (208) and the second support plate (209).
4. The environment-friendly steelmaking process of a steel furnace as claimed in claim 1, wherein: the included angle formed by the first filter screen (6) and the bottom wall of the impurity collecting box (5) is 45-60 degrees, and the first filter screen (6) is arranged below the sewage discharge pipe (4); the impurities are prevented from being accumulated on the first filter screen (6) to block the meshes.
5. The environment-friendly steelmaking process of a steel furnace as claimed in claim 1, wherein: the shower nozzle (219) is double-deck shower nozzle (219), and communicates through rubber hose (233) between two shower nozzles (219), and rubber hose (233) are used for increasing the swing range of shower nozzle (219).
6. The environment-friendly steelmaking process of the steelmaking furnace as claimed in claim 2, wherein: the two adjacent rows of capillary pipelines (32) are arranged in a staggered mode, a gap for air flowing is formed between every two adjacent capillary pipelines (32), and the contact area of the capillary pipelines (32) and air is increased.
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| CN201910020465.6A CN109593904A (en) | 2019-01-09 | 2019-01-09 | A kind of environmental protection converter process for making |
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| CN201910020465.6A CN109593904A (en) | 2019-01-09 | 2019-01-09 | A kind of environmental protection converter process for making |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112933917A (en) * | 2021-01-13 | 2021-06-11 | 李飞红 | Industrial flue gas desulfurization tower |
| CN113975925A (en) * | 2021-09-22 | 2022-01-28 | 邓卫明 | Steel-making furnace with high-efficiency waste gas treatment |
| CN117919884A (en) * | 2024-03-25 | 2024-04-26 | 上海金山石化物流股份有限公司 | Petroleum refining waste gas purifying and recycling equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113975925A (en) * | 2021-09-22 | 2022-01-28 | 邓卫明 | Steel-making furnace with high-efficiency waste gas treatment |
| CN113975925B (en) * | 2021-09-22 | 2023-12-12 | 忻州华茂特钢股份有限公司 | Steelmaking furnace is handled to waste gas high efficiency |
| CN117919884A (en) * | 2024-03-25 | 2024-04-26 | 上海金山石化物流股份有限公司 | Petroleum refining waste gas purifying and recycling equipment |
| CN117919884B (en) * | 2024-03-25 | 2024-06-07 | 上海金山石化物流股份有限公司 | Petroleum refining waste gas purifying and recycling equipment |
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