Scrap steel high-efficiency recycled ductile iron smelting device and flue gas treatment system

Abstract

The present invention belongs to the field of casting technology, specifically to a scrap steel efficient regeneration ductile iron smelting device and a flue gas treatment system, comprising an operating rail car, an operating tank, a placement table, and a limit block; a placement table is installed on the top of the operating rail car; a plurality of groups of limit blocks are fixedly connected to the top of the placement table; an operating tank is provided on the top of the placement table between each group of limit blocks; a pair of No. 1 slides are provided on the top of the placement table between each pair of limit blocks; a reciprocating screw is rotatably connected inside the No. 1 slide; through the rotation effect of the reciprocating screw, the clamping plate can be driven to fit the four sides of the operating tank. At this time, according to the size of the operating tank, the clamping plate changes its moving angle according to the size of the operating tank, thereby clamping the operating tank and completing the position restriction of the operating tank, thereby reducing the offset sliding caused by the existence of gaps on the placement table due to the different sizes of the operating tanks, thereby causing the molten iron to splash out.

Description

Technical Field

[0001] The invention belongs to the field of casting technology, in particular to a scrap steel high-efficiency regeneration ductile iron smelting device and a flue gas treatment system. Background Art

[0002] Scrap steel is a common steel waste in modern society. Through ductile iron smelting, scrap steel can be melted and recast into parts with complex force and high requirements for strength, toughness and wear resistance. By optimizing the proportion of scrap steel and supporting technologies, it can not only reduce costs and increase efficiency, but also promote the development of green casting.

[0003] With the current existing technology, scrap steel can be used in a wide range of scenarios after being re-smelted, and has penetrated almost all steel-related fields, from traditional construction and automobiles to emerging energy and electronics industries.

[0004] During use, after scrap steel is melted into molten iron, it needs to be transported to the medium frequency furnace via rails using special tank cars for subsequent processing. However, the different sizes of the tanks result in a gap between the tanks and the car body during transportation, causing the tanks to move and the molten iron in the tanks to spill, posing a safety hazard to the surrounding workers. Therefore, to address the above problems, a scrap steel high-efficiency regeneration ductile iron smelting device and a flue gas treatment system are proposed. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the scrap steel efficient regeneration ductile iron smelting device described in the present invention includes an operating rail car, an operating tank, a placement table, and a limit block; a placement table is installed on the top of the operating rail car; multiple groups of limit blocks are fixedly connected to the top of the placement table; an operating tank is provided on the top of the placement table between each group of limit blocks; a pair of No. 1 slide grooves are provided on the top of the placement table between each pair of limit blocks; a reciprocating screw is rotatably connected inside the No. 1 slide groove; a positioning rod is connected to the screw nut pair in the middle of the reciprocating screw rod; a pair of clamping plates are fixedly connected to the top of the positioning rods.

[0007] Preferably, a rubber impeller is rotatably connected inside the limit block; a No. 2 slide groove is provided on the top surface of the placement table below the limit block; reinforcing ribs are fixedly connected between a pair of positioning rods above and below the placement table; multiple groups of No. 3 slide grooves are provided on the top surface of the placement table between a pair of No. 1 slide grooves; multiple groups of limit columns are rotatably connected to the bottom surface of the placement table; connecting ropes are wrapped around the rotating shafts on both sides of the rubber impeller, and the connecting ropes pass through the No. 2 slide groove and contact the limit columns to be fixed to the side walls of the reinforcing ribs below the placement table.

[0008] The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device is characterized in that: the system is suitable for the above-mentioned scrap steel high-efficiency regeneration ductile iron smelting device, including a power supply module, a flue gas absorption module, a temperature control module, a flue gas treatment module, and a flue gas storage module: the power supply module is connected to the flue gas treatment module and the flue gas absorption module through a circuit; the flue gas absorption module and the flue gas treatment module are connected; a temperature control module is installed on the flue gas absorption module; the flue gas treatment module and the flue gas storage module are connected.

[0009] Preferably, the flue gas absorption module includes a flue; a flue is opened on the top of the clamping plate; a cooling box is fixedly connected to the middle of a pair of positioning rods; multiple groups of copper tubes are connected between the flue and the cooling box; the copper tubes are connected to rubber tubes after passing through the bottom of the cooling box; the rubber tubes are connected to the flue gas treatment module after passing through the No. 3 slide slot; the interior of the cooling box is filled with coolant; multiple groups of heat sinks are fixedly connected to both sides of the cooling box, and the ends of the heat sinks pass through the cooling box and are in contact with the internal coolant.

[0010] Preferably, the temperature control module includes a fan; the fan is fixed to the side wall of the cooling box and is located between each pair of heat sinks; the side wall of the cooling box is fixed with baffles on both sides of the heat sink; the inner side wall of the cooling box is fixed with a limiting ring between each pair of heat sinks; the middle part of the limiting ring is filled with shape memory alloy; both ends of the limiting ring are slidably connected with a push column, and the end of the push column is in contact with the heat sink; a rubber pad is filled between the heat sink and the cooling box.

[0011] Preferably, multiple groups of heat sink side walls are located inside the rubber pad and are fixedly connected to a No. 1 fitting block; the rubber pad side wall is located at a position corresponding to the No. 1 fitting block and is fixedly connected to the No. 1 fitting block; the No. 1 fitting block and the No. 2 fitting block fit together; the push column end is spherically connected to a ball, and the ball side wall is in contact with the heat sink; there is a water filling port on the top of the cooling box.

[0012] Preferably, the flue gas treatment module includes a flue gas bin; a plurality of groups of limiting plates are fixedly connected to the inside of the flue gas bin, and the internal space of the flue gas bin is divided by the limiting plates to form a flue; the bottom of the rubber tube is connected to the side wall of the flue gas bin; activated carbon plates are fixedly connected to both sides of the middle flue inside the flue gas bin; a No. 1 blocking plate is fixedly connected to the middle of the activated carbon plate, and the No. 1 blocking plate is in contact with the side wall of the limiting plate; turbofans are provided on both sides of the middle flue of the flue gas bin; filters are fixedly connected to the side walls of the middle flue on both sides of the turbofan.

[0013] Preferably, the side walls of the limiting plate are located on both sides of the middle flue and are fixedly connected to multiple groups of atomizing nozzles, and the atomizing nozzles are arranged in a staggered manner; the interior of the smoke bin is located in the middle flue and has multiple groups of drain holes; the bottom of the smoke bin is fixedly connected to a storage box, and the top opening of the storage box is located below the drain hole; the water pipes on both sides of the drain hole can be connected to the water circulation system.

[0014] Preferably, a triangular plate is fixedly connected to the bottom of the storage box; a No. 2 blocking plate is fixedly connected to the inner side wall of the storage box above the triangular plate, and the top of the No. 2 blocking plate is arranged in an inclined shape; a guide plate is fixedly connected to the side wall of the bottom opening of the storage box; the guide plate is arranged in an inclined shape; the water pipes on both sides of the storage box are located above the No. 2 blocking plate.

[0015] Preferably, the reinforcing rib is located at the position of the No. 3 slide groove and is rotatably connected to multiple sets of rotating shafts; storage bins are fixedly connected to both sides of the bottom of the placement table, and one end of a rubber membrane is wrapped around the inside of the storage bin through a torsion spring; the other end of the rubber membrane is fixedly connected to the side wall of the reinforcing rib at the bottom of the placement table.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention provides a high-efficiency scrap steel regeneration ductile iron smelting device and flue gas treatment system. The reciprocating screw drives the clamping plate to fit around the periphery of the operating tank. The clamping plate adjusts its movement angle according to the size of the operating tank, thereby clamping the operating tank and limiting its position. This reduces the risk of slippage caused by gaps on the placement table due to varying operating tank sizes, which can lead to molten iron splashing.

[0018] 2. The present invention provides a scrap steel high-efficiency regeneration ductile iron smelting device and a flue gas treatment system. Through the movement effect of the positioning rod, when completing the clamping effect on the four sides of the operating tank, it can drive the rubber impeller to rotate, and perform top restriction on the bottom pipe of the operating tank. At the same time, the material of the rubber impeller increases the friction force on the bottom pipe of the operating tank, and cooperates with the clamping plate to complete the restriction of the operating tank, reduce the movement and shaking of the operating tank, and increase stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 A perspective view of a clamping plate of the present invention;

[0022] Figure 3is a system flow chart of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the cooling box of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the operating rail vehicle of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the waste gas bin of the present invention.

[0026] Legend:

[0027] 1. Operating railcar; 11. Operating tank; 12. Placement table; 13. Limit block; 14. No. 1 chute; 15. Reciprocating screw; 16. Positioning rod; 17. Clamping plate; 2. Rubber impeller; 21. No. 2 chute; 22. Reinforcement rib; 23. No. 3 chute; 24. Connecting rope; 25. Limiting column; 3. Flue; 31. Copper tube; 32. Cooling box; 33. Rubber tube; 34. Heat sink; 4. Baffle; 41. Fan; 42. Limiting ring ; 43. Push column; 44. Shape memory alloy; 5. Rubber pad; 51. Fitting block No. 1; 52. Fitting block No. 2; 53. Ball; 6. Flue gas bin; 61. Limit plate; 62. Activated carbon plate; 63. Blocking plate No. 1; 64. Filter; 65. Turbofan; 7. Atomizing nozzle; 71. Storage box; 72. Hydrophobic hole; 8. Guide plate; 81. Blocking plate No. 2; 82. Triangular plate; 9. Rotating shaft; 91. Storage bin; 92. Rubber membrane. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] See also Figure 1-5As shown, the scrap steel efficient regeneration ductile iron smelting device includes an operating rail car 1, an operating tank 11, a placement table 12, and a limit block 13; the top of the operating rail car 1 is fixedly connected to a placement table 12; the top of the placement table 12 is fixedly connected to multiple groups of limit blocks 13; the top of the placement table 12 is provided with an operating tank 11 between each group of limit blocks 13; the top of the placement table 12 is provided with a pair of No. 1 slides 14 between each pair of limit blocks 13; the No. 1 slide 14 is rotatably connected with a reciprocating screw 15; the middle part of the reciprocating screw 15 is connected with a positioning rod 16; the top of a pair of positioning rods 16 are fixedly connected with a clamping plate 17; during operation, when smelting scrap steel ductile iron, it is necessary to transport the molten iron back and forth for secondary processing. At this time, the smelted molten iron will be poured into the operating tank 11 for temporary storage, and the molten iron will be transported back and forth for secondary processing. The rail car 1 is used to transport it. At this time, according to the size of the operating tank 11, the rotation effect of the reciprocating screw 15 can be used to drive the positioning rod 16 to move, so that a pair of clamping plates 17 can wrap and restrict the four sides of the operating tank 11, and then the operating rail car 1 can use a pair of clamping plates 17 to restrict the four sides of the operating tank 11 during transportation to maintain the stability of the operating tank 11. This step can drive the clamping plates 17 to fit the four sides of the operating tank 11 through the rotation effect of the reciprocating screw 15. At this time, according to the size of the operating tank 11, the clamping plates 17 change the moving angle according to the size of the operating tank 11, thereby clamping the operating tank 11 and completing the position restriction of the operating tank 11, thereby reducing the offset sliding caused by the gap on the placement table 12 due to the different sizes of the operating tank 11, thereby causing the molten iron to splash out.

[0030] See also Figure 1-2As shown, the limit block 13 is internally connected to the rubber impeller 2 for rotation; the top surface of the placing platform 12 is provided with a No. 2 slide groove 21 below the limit block 13; a pair of the positioning rods 16 are fixed with reinforcing ribs 22 above and below the placing platform 12; the top surface of the placing platform 12 is provided with multiple groups of No. 3 slide grooves 23 between a pair of No. 1 slide grooves 14; the bottom surface of the placing platform 12 is rotatably connected with multiple groups of limiting columns 25; connecting ropes 24 are wrapped around the rotating shafts on both sides of the rubber impeller 2, and the connecting ropes 24 pass through the No. 2 slide groove 21 and contact the limiting columns 25 to be fixed to the side walls of the reinforcing ribs 22 below the placing platform 12; during operation, in the process of fixing the operating tank 11, the clamping plate 17 will change its position according to the size of the operating tank 11, and at the same time The movement of the positioning rod 16 will drive the reinforcement rib 22 to move. At this time, the movement of the reinforcement rib 22 will drive the connecting rope 24 to produce a pulling effect, so that the middle part of the connecting rope 24 is pulled along the limiting column 25 as the bending point, so that the rubber impeller 2 rotates, and the rubber impeller 2 restricts the pipe placed between a pair of limiting blocks 13 at the bottom of the operating tank 11. This step, through the movement effect of the positioning rod 16, completes the clamping effect on the four sides of the operating tank 11, and can drive the rubber impeller 2 to rotate, thereby restricting the top of the bottom pipe of the operating tank 11. At the same time, the material of the rubber impeller 2 increases the friction force on the bottom pipe of the operating tank 11, and cooperates with the clamping plate 17 to complete the restriction of the operating tank 11, thereby reducing the movement and shaking of the operating tank 11 and increasing stability.

[0031] See also Figure 3 As shown, the flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device is characterized in that: the system is suitable for the above-mentioned scrap steel high-efficiency regeneration ductile iron smelting device, including a power supply module, a flue gas absorption module, a temperature control module, a flue gas treatment module, and a flue gas storage module: the power supply module is connected to the flue gas treatment module and the flue gas absorption module through a circuit; the flue gas absorption module and the flue gas treatment module are communicated; a temperature control module is installed on the flue gas absorption module; the flue gas treatment module and the flue gas storage module are communicated.

[0032] See also Figure 2-4As shown, the flue gas absorption module includes a flue 3; a flue 3 is opened on the top of the clamping plate 17; a cooling box 32 is fixedly connected to the middle of a pair of positioning rods 16; a plurality of groups of copper tubes 31 are connected between the flue 3 and the cooling box 32; the copper tube 31 passes through the bottom of the cooling box 32 and is connected to a rubber tube 33; the rubber tube 33 passes through the No. 3 chute 23 and is connected to the flue gas treatment module; the cooling box 32 is filled with coolant; a plurality of groups of heat sinks 34 are fixed on both sides of the cooling box 32, and the ends of the heat sinks 34 pass through the cooling box 32 and contact the internal coolant; during operation, when the operating tank 11 transports the molten iron, corresponding movement is required according to the different subsequent processing positions. At this time, the smoke generated by the molten iron under the action of heat will float upward until it is diluted with the air, and some harmful substances exist in the smoke, which will cause a certain degree of harm to the surrounding staff. At this time, the clamping plate 1 7 When the operating tank 11 is restricted, the flue 3 opened on the top of the clamping plate 17 can be connected to the flue gas treatment module through the copper tube 31 and the cooling box 32, and the suction force is used to generate suction on the flue gas floating upward, so that the flue gas passes through the copper tube 31 and the cooling box 32 and enters the flue gas treatment module for initial treatment to reduce harmful components. At the same time, because the initial temperature of the flue gas is relatively high, it can be cooled inside the cooling box 32 through the copper tube 31 and then enter the rubber tube 33, reducing damage to the rubber tube 33. In this step, the flue 3 on the top of the clamping plate 17 can be opened, and the flue gas can be driven into the copper tube 31 and the rubber tube 33 through the absorption effect of the flue gas treatment module and transported to the inside of the flue gas treatment module for treatment, reducing the direct floating of the flue gas and the safety hazards to the surrounding personnel. At the same time, the temperature of the copper tube 31 and the internal flue gas is cooled in conjunction with the presence of the cooling box 32, reducing the impact of overheating of the flue gas on the rubber tube 33.

[0033] See also Figure 4As shown, the temperature control module includes a fan 41; the fan 41 is fixedly connected to the side wall of the cooling box 32 and is located between each pair of heat sinks 34; the side wall of the cooling box 32 is fixed with a baffle 4 on both sides of the heat sink 34; the inner side wall of the cooling box 32 is fixed with a limiting ring 42 between each pair of heat sinks 34; the middle of the limiting ring 42 is filled with shape memory alloy 44; both ends of the limiting ring 42 are slidably connected with a pushing column 43, and the end of the pushing column 43 is in contact with the heat sink 34; a rubber pad 5 is filled between the heat sink 34 and the cooling box 32; when working, during the normal absorption of flue gas, as the high-temperature flue gas contacts the coolant inside the cooling box 32 for a long time, the temperature of the coolant inside the cooling box 32 will gradually increase, thereby weakening the cooling effect. At this time, the fan 41 can rotate to accelerate the heat exchange between the heat sink 34 and the coolant through wind force. At the same time, as the temperature continues to rise, the shape memory alloy 44 is gradually reduced. The alloy 44 will deform under the action of thermal expansion and contraction, and produce a pushing effect on the pushing column 43, so that the pushing column 43 pushes the end of the heat sink 34, so that the angle of the heat sink 34 changes under the action of the rubber pad 5, and the end of the pair of heat sinks 34 gradually approaches each other. At this time, due to the obstruction of the baffle 4, the air outlet of the fan 41 is reduced due to the mutual approach of the pair of heat sinks 34, thereby increasing the air flow rate, and increasing the heat exchange effect of the heat sink 34. In this step, the heat sink 34 installed on the side wall of the cooling box 32 can change the effect of the heat sink 34 through the pushing effect of the pushing column 43 when the temperature of the coolant inside the cooling box 32 rises, thereby increasing the wind flow rate blown out by the fan 41, thereby accelerating the heat exchange effect between the heat sink 34 and the coolant, and then when the temperature inside the cooling box 32 increases, the heat exchange effect of the heat sink 34 is adaptively accelerated, the coolant temperature is accelerated to drop, and the cooling treatment of the flue gas is maintained.

[0034] See also Figure 4As shown, multiple groups of side walls of the heat sink 34 are located inside the rubber pad 5 and are fixedly connected to the No. 1 fitting block 51; the side wall of the rubber pad 5 is located at a position corresponding to the No. 1 fitting block 51 and is fixedly connected to the No. 2 fitting block 52; the No. 1 fitting block 51 and the No. 2 fitting block 52 fit together; the end of the push column 43 is spherically connected to the ball 53, and the side wall of the ball 53 is in contact with the heat sink 34; there is a water filling port on the top of the cooling box 32; when working, when the push column 43 pushes the heat sink 34, as the angle of the heat sink 34 changes, the distance between the No. 1 fitting block 51 and the No. 2 fitting block 52 on one side will gradually Pulling away creates a gap, at this time, the coolant inside the cooling box 32 can slowly seep out from the gap and gradually circulate on the heat sink 34, and then evaporates by contact with the wind blown by the fan 41. At the same time, the rolling contact between the ball 53 and the heat sink 34 can reduce the contact area, thereby increasing the contact area between the heat sink 34 and the coolant. This step allows part of the coolant to gradually seep out through the gap left by the No. 1 fitting block 51 and the No. 2 fitting block 52 when the angle of the heat sink 34 changes, so that the air blown by the fan 41 plus the evaporation effect of the seeping coolant can take away a large amount of heat by the evaporation of the coolant, thereby accelerating the cooling effect.

[0035] See also Figure 5-6 As shown, the flue gas treatment module includes a flue gas bin 6; a plurality of limit plates 61 are fixedly connected to the inside of the flue gas bin 6, and the internal space of the flue gas bin 6 is divided by the limit plates 61 to form a flue; the bottom of the rubber tube 33 is connected to the side wall of the flue gas bin 6; the flue gas bin 6 is fixed with activated carbon plates 62 on both sides of the middle flue; the activated carbon plate 62 is fixed with a No. 1 blocking plate 63 in the middle, and the No. 1 blocking plate 63 is in contact with the side wall of the limit plate 61; turbo fans 65 are provided on both sides of the middle flue of the flue gas bin 6; filters 64 are fixedly connected to the side walls of the middle flue on both sides of the turbo fan 65; during operation, during the absorption process of the flue gas, as the flue gas moves along the rubber tube 33, it will enter the inside of the flue gas bin 6. At this time, the flue gas entering the flue gas bin 6 will form a flue gas along the limit plates 61. The flue moves, and the activated carbon plate 62 installed at the bottom of the flue will absorb some of the harmful substances and particulate matter in the flue. At the same time, during the movement of the flue, part of the flue gas will be blocked by the No. 1 blocking plate 63. At this time, the impurities inside the flue gas with a slower flow rate at the bottom gradually sink and come into contact with the activated carbon plate 62. The subsequent flue gas can be discharged into the cavity between the flue gas bin 6 and the operating rail car 1 and the flue gas storage module after being filtered twice by the filter 64, and stored therein, waiting for discharge. In this step, the flue gas can be initially treated by storing the flue gas in the flue gas bin 6, and the activated carbon plate 62, the No. 1 blocking plate 63 and the filter 64 can be used to absorb and filter the harmful substances and particulate matter in the flue gas, thereby reducing the damage caused by direct flue gas discharge and contact with the human body.

[0036] See also Figure 6 As shown, the side walls of the limit plate 61 are located on both sides of the middle flue, and multiple groups of atomizing nozzles 7 are fixedly connected, and the atomizing nozzles 7 are arranged in a staggered manner; the inside of the smoke bin 6 is located in the middle flue and has multiple groups of drain holes 72; the bottom of the smoke bin 6 is fixedly connected to a storage box 71, and the top opening of the storage box 71 is located below the drain hole 72; the water pipes on both sides of the drain hole 72 can be connected to the water circulation system; when working, the smoke inside the smoke bin 6 passes through the activated carbon plate 62 and the No. 1 blocking plate 63 smoothly and then enters the middle flue Flue, at this time, water mist will be sprayed under the action of the atomizing nozzle 7, and the harmful substances and particulate matter in the flue gas will be treated secondary. The falling water will enter the hydrophobic hole 72 and flow to the storage box 71 for storage. Later, the atomizing nozzle 7 can be used to spray water mist again through the water circulation system. This step can further reduce the harmful substances and particulate matter in the flue gas through the water mist spraying effect of the middle flue inside the flue gas bin 6, treat the flue gas secondary, and reduce the harm to the staff.

[0037] See also Figure 6 As shown, a triangular plate 82 is fixed to the bottom of the storage box 71; a second blocking plate 81 is fixed to the inner side wall of the storage box 71 above the triangular plate 82, and the top of the second blocking plate 81 is inclined; a guide plate 8 is fixed to the side wall of the bottom opening of the storage box 71; the guide plate 8 is inclined; the water pipes on both sides of the storage box 71 are located above the second blocking plate 81; when working, under the spraying action of the atomizing nozzle 7, water droplets will gradually drip from the hydrophobic holes 72. At this time, the inclination angle of the guide plate 8 can guide the water droplets to flow into the middle of the storage box 71. At this time, As the moisture inside the storage box 71 gradually increases, the water level will gradually rise. At this time, when the water level is higher than the water pipes on both sides of the storage box 71, the water circulation system starts to absorb the moisture inside the storage box 71, so that the water level drops to the same level as the No. 2 baffle plate 81. In the process of moisture accumulation, the triangular plate 82 and the No. 2 baffle plate 81 can make the flue gas impurities in the moisture move to the sides of the storage box 71, reducing the upward floating situation. This step can reduce the impurities in the water from entering the water circulation system through the pipe through the blocking effect of the No. 2 baffle plate 81, causing the pipe to be blocked for a long time.

[0038] See also Figure 2-4As shown, the reinforcing rib 22 is located at the position of the third slide 23 and is rotatably connected to multiple sets of rotating shafts 9; both sides of the bottom of the placing platform 12 are fixedly connected to storage bins 91, and one end of a rubber membrane 92 is wrapped around the inside of the storage bin 91 through a torsion spring; the other end of the rubber membrane 92 is fixedly connected to the side wall of the reinforcing rib 22 at the bottom of the placing platform 12; during operation, the rubber tube 33 and the rotating shaft 9 will be in contact during the movement of the positioning rod 16, and the friction force is reduced by the rolling friction of the rotating shaft 9. At the same time, after clamping the operating tank 11, the rubber membrane 92 will be pulled to close the No. 3 slide 23, reducing the discharge of smoke, so that the smoke stays between the smoke bin 6 and the operating rail car 1. This step can reduce the upward discharge of smoke and reduce the discharge amount by the covering effect of the rubber membrane 92 on the No. 3 slide 23, so as to make part of the smoke stay between the smoke bin 6 and the operating rail car 1, so that the smoke is precipitated and the particulate matter moves downward for the third treatment.

[0039] Working principle: When smelting scrap steel and ductile iron, the molten iron needs to be transported back and forth for secondary processing. At this time, the smelted molten iron will be poured into the operating tank 11 for temporary storage and transported by the operating rail car 1. At this time, according to the size of the operating tank 11, the rotation effect of the reciprocating screw 15 can be used to drive the positioning rod 16 to move, so that a pair of clamping plates 17 can wrap and restrict the four sides of the operating tank 11, and then the operating rail car 1 can use a pair of clamping plates 17 to restrict the four sides of the operating tank 11 during transportation to maintain the stability of the operating tank 11. In the process of fixing the operating tank 11, the clamping plate 17 will change its position according to the size of the operating tank 11. At the same time, the movement of the positioning rod 16 will drive the reinforcing rib 22 to move. At this time, the movement of the reinforcing rib 22 will drive the connecting rope 24 to produce a pulling effect, so that the middle part of the connecting rope 24 is pulled along the limiting column 25 as the bending point, so that the rubber leaf The wheel 2 rotates, causing the rubber impeller 2 to restrict the pipe placed between a pair of limit blocks 13 at the bottom of the operating tank 11. When the operating tank 11 transports the molten iron, it needs to move accordingly according to the different subsequent processing positions. At this time, the smoke generated by the molten iron under the action of heat will float upward until it is diluted with the air. Some harmful substances exist in the smoke, which will cause a certain degree of harm to the surrounding staff. At this time, when the clamping plate 17 restricts the operating tank 11, the flue 3 opened on the top of the clamping plate 17 can be connected to the flue gas treatment module through the copper tube 31 and the cooling box 32, and suction is used to generate suction on the upward floating smoke, so that the smoke passes through the copper tube 31 and the cooling box 32 into the smoke treatment module for initial treatment, thereby reducing harmful components. At the same time, since the initial temperature of the smoke is relatively high, it can be cooled inside the cooling box 32 through the copper tube 31 and then enter the rubber tube 33, thereby reducing damage to the rubber tube 33.

[0040] During the normal absorption process of flue gas, as the high-temperature flue gas contacts the coolant inside the cooling box 32 for a long time, the temperature of the coolant inside the cooling box 32 will gradually increase, thereby weakening the cooling effect. At this time, the fan 41 can rotate, and accelerate the heat exchange between the heat sink 34 and the coolant through wind force. At the same time, as the temperature continues to rise, the shape memory alloy 44 will deform under the action of thermal expansion and contraction, and produce a pushing effect on the pushing column 43, so that the pushing column 43 pushes the end of the heat sink 34, so that the heat sink 34 changes its angle under the action of the rubber pad 5, and the end of the pair of heat sinks 34 gradually approaches each other. At this time, due to the obstruction of the baffle 4, the air outlet of the fan 41 is reduced due to the mutual approach of the pair of heat sinks 34, thereby increasing the air flow rate and increasing the heat exchange effect of the heat sink 34. When the pushing column 43 produces a pushing effect on the heat sink 34, as the angle of the heat sink 34 changes, the distance between the first fitting block 51 and the second fitting block 52 on one side will Gradually pull away to create a gap. At this time, the coolant inside the cooling box 32 can slowly seep out of the gap and gradually circulate on the heat sink 34, and then evaporate in contact with the wind blown by the fan 41. At the same time, the rolling contact between the ball 53 and the heat sink 34 can reduce the contact area, thereby increasing the contact area between the heat sink 34 and the coolant. In the process of absorbing the flue gas, as the flue gas moves along the rubber tube 33, it will enter the flue gas bin 6. At this time, the flue gas entering the flue gas bin 6 will move along the flue formed by the limit plate 61. The activated carbon plate 62 installed at the bottom of the flue will absorb some of the harmful substances and particulate matter in the flue gas. At the same time, during the movement of the flue gas, part of the flue gas will be blocked by the No. 1 blocking plate 63. At this time, the impurities in the flue gas with a slower flow rate at the bottom gradually sink and contact the activated carbon plate 62. The subsequent flue gas can be discharged into the cavity between the flue gas bin 6 and the operating rail car 1 and the flue gas storage module after being filtered twice by the filter 64 for storage, waiting to be discharged.

[0041] After the flue gas in the flue gas bin passes through the activated carbon plate 62 and the No. 1 baffle plate 63 smoothly, it enters the middle flue. At this time, water mist will be sprayed under the action of the atomizing nozzle 7 to perform secondary treatment on the harmful substances and particulate matter in the flue gas. The falling water will enter the hydrophobic hole 72 and flow into the storage box 71 for storage. Later, the atomizing nozzle 7 can be used to spray water mist again through the water circulation system. Under the spraying action of the atomizing nozzle 7, water droplets will gradually drip from the hydrophobic hole 72. At this time, the inclination angle of the guide plate 8 can guide the water droplets to flow into the middle of the storage box 71. At this time, as the moisture inside the storage box 71 gradually increases, the water level will gradually rise. At this time, when When the water level is higher than the water pipes on both sides of the storage box 71, the water circulation system starts to absorb the moisture inside the storage box 71, so that the water level drops to the same level as the No. 2 baffle 81. During the accumulation of moisture, the triangular plate 82 and the No. 2 baffle 81 can move the flue gas impurities in the moisture to the sides of the storage box 71, reducing the upward floating situation. During the movement of the positioning rod 16, the rubber tube 33 and the rotating shaft 9 will come into contact, and the friction force will be reduced by the rolling friction of the rotating shaft 9. At the same time, after clamping the operating tank 11, the rubber membrane 92 will be pulled to close the No. 3 chute 23, reducing the discharge of smoke, so that the smoke stays between the smoke bin 6 and the operating rail car 1.

[0042] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device is characterized by: It includes a power supply module, a smoke absorption module, a temperature control module, a smoke treatment module, and a smoke storage module: the power supply module is connected to the smoke treatment module and the smoke absorption module through a circuit; the smoke absorption module and the smoke treatment module are connected; the temperature control module is installed on the smoke absorption module; the smoke treatment module and the smoke storage module are connected; The flue gas treatment system is used for a scrap steel high-efficiency regeneration ductile iron smelting device, and the device comprises an operating rail car (1), an operating tank (11), a placement table (12), and a limit block (13); a placement table (12) is installed on the top of the operating rail car (1); a plurality of limit blocks (13) are fixedly connected to the top of the placement table (12); an operating tank (11) is provided on the top of the placement table (12) between each group of limit blocks (13); a pair of No. 1 chutes (14) are provided on the top of the placement table (12) between each pair of limit blocks (13); a reciprocating screw rod (15) is rotatably connected inside the No. 1 chutes (14); a positioning rod (16) is connected to the middle screw nut pair of the reciprocating screw rod (15); the tops of the pair of positioning rods (16) are A clamping plate (17) is fixedly connected; the limit block (13) is internally rotatably connected to a rubber impeller (2); the top surface of the placement platform (12) is located below the limit block (13) and is provided with a second slide groove (21); a pair of the positioning rods (16) are located above and below the placement platform (12) and are fixed with a reinforcement rib (22); the top surface of the placement platform (12) is located between a pair of No. 1 slide grooves (14) and is provided with a plurality of groups of No. 3 slide grooves (23); the bottom surface of the placement platform (12) is rotatably connected to a plurality of groups of limit columns (25); a connecting rope (24) is wound around the rotating shafts on both sides of the rubber impeller (2), and the connecting rope (24) passes through the No. 2 slide groove (21) and contacts the limit column (25) and is fixed to the side wall of the reinforcement rib (22) below the placement platform (12); The flue gas absorption module includes a flue (3); a flue (3) is provided on the top of the clamping plate (17); a cooling box (32) is fixedly connected to the middle of a pair of positioning rods (16); a plurality of copper tubes (31) are connected between the flue (3) and the cooling box (32); the copper tubes (31) pass through the bottom of the cooling box (32) and are connected to a rubber tube (33); the rubber tube (33) passes through the third slide groove (23) and is connected to the flue gas treatment module; the interior of the cooling box (32) is filled with coolant; a plurality of heat sinks (34) are fixedly connected to both sides of the cooling box (32), and the ends of the heat sinks (34) pass through the cooling box (32) and are in contact with the coolant inside.

2. The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device according to claim 1 is characterized in that: The temperature control module includes a fan (41); the fan (41) is fixed to the side wall of the cooling box (32) and is located between each pair of heat sinks (34); the side wall of the cooling box (32) is fixed with a baffle (4) on both sides of the heat sink (34); the inner side wall of the cooling box (32) is fixed with a limiting ring (42) between each pair of heat sinks (34); the middle of the limiting ring (42) is filled with a shape memory alloy (44); both ends of the limiting ring (42) are slidably connected with a push column (43), and the end of the push column (43) is in contact with the heat sink (34); a rubber pad (5) is filled between the heat sink (34) and the cooling box (32).

3. The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device according to claim 2 is characterized by: The side walls of the plurality of groups of heat sinks (34) are located inside the rubber pad (5) and are fixedly connected to a first fitting block (51); the side walls of the rubber pad (5) are located at a position corresponding to the first fitting block (51) and are fixedly connected to a second fitting block (52); the first fitting block (51) and the second fitting block (52) fit together; the end of the push column (43) is spherically connected to a ball (53), and the side wall of the ball (53) is in contact with the heat sink (34); and a water inlet is provided at the top of the cooling box (32).

4. The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device according to claim 2 is characterized in that: The flue gas treatment module includes a flue gas bin (6); a plurality of limit plates (61) are fixedly connected inside the flue gas bin (6), and the internal space of the flue gas bin (6) is divided by the limit plates (61) to form a flue gas duct; the bottom of the rubber tube (33) is connected to the side wall of the flue gas bin (6); an activated carbon plate (62) is fixedly connected to both sides of the flue gas duct located in the middle of the flue gas bin (6); a blocking plate (63) is fixedly connected to the middle of the activated carbon plate (62), and the blocking plate (63) is in contact with the side wall of the limit plate (61); turbo fans (65) are provided on both sides of the flue gas duct in the middle of the flue gas bin (6); and filter screens (64) are fixedly connected to the side walls of the flue gas duct located in the middle on both sides of the turbo fan (65).

5. The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device according to claim 4 is characterized in that: The side walls of the limiting plate (61) are fixedly connected to multiple groups of atomizing nozzles (7) on both sides of the central flue, and the atomizing nozzles (7) are arranged in a staggered manner; the interior of the smoke bin (6) is located in the central flue and is provided with multiple groups of drain holes (72); the bottom of the smoke bin (6) is fixedly connected to a storage box (71), and the top opening of the storage box (71) is located below the drain hole (72); water pipes on both sides of the drain hole (72) are connected to a water circulation system.

6. The flue gas treatment system of the scrap steel high-efficiency regeneration ductile iron smelting device according to claim 5 is characterized by: The bottom of the storage box (71) is fixed with a triangular plate (82); the inner side wall of the storage box (71) is fixed with a second blocking plate (81) located above the triangular plate (82), and the top of the second blocking plate (81) is arranged in an inclined surface; the side wall of the bottom opening of the storage box (71) is fixed with a guide plate (8); the guide plate (8) is arranged in an inclined shape; the water pipes on both sides of the storage box (71) are located above the second blocking plate (81); the reinforcing rib (22) is located at the position of the third slide groove (23) and is rotatably connected to multiple sets of rotating shafts (9); both sides of the bottom of the placement table (12) are fixed with storage bins (91), and one end of a rubber membrane (92) is wound inside the storage bin (91) through a torsion spring; the other end of the rubber membrane (92) is fixed to the side wall of the reinforcing rib (22) at the bottom of the placement table (12).

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