Refining operation system of sintering machine

Abstract

The invention relates to a fine operation system of a sintering machine, which is characterized in that an original sintering machine is transformed, and a heating device is additionally arranged on original feeding equipment, so that the temperature of a mixture can be increased, a flat pressing device is improved, and the thickness of a material layer is consistent; a shell breaking and punching mechanism is additionally arranged, the air permeability of a sintering material layer is effectively improved, the sintering process is promoted to be smoothly developed, meanwhile, a sealing device at the position of a sintering air bellow beam of each sintering section is improved, an air bellow of the whole air draft system forms three independent air draft systems, and the purpose that air does not flow through the adjacent air bellow of each sintering section is achieved. By means of the method, the sintering machine can achieve refined operation, and the quality of sintered minerals is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of sintering production equipment in the metallurgical industry, in particular to a refined operating system for a sintering machine. Background Art

[0002] The sintering machine is suitable for the sintering operation of large-scale ferrous metallurgical sintering plants. It is the main equipment in the exhaust sintering process. It can sinter concentrate powder and rich ore powder of different components and different particle sizes into blocks, and partially eliminate harmful impurities such as sulfur and phosphorus contained in the ore. The sintering machine system mainly includes the sintering machine, the sintering trolley, the sintering machine frame, the feeding equipment and flat material mechanism arranged at the front end of the sintering machine, the discharging equipment arranged at the rear end of the sintering machine, the multiple sintering bellows of the sintering machine arranged at the bottom of the sintering machine, the head and tail sealing devices arranged at the head and tail of the sintering machine, the fixed partition device arranged at the cross beam of the sintering machine bellows, the main flue connected to each sintering bellows, the main electrostatic precipitator connected to the outlet end of the main flue, the main exhaust fan connected to the outlet end of the main electrostatic precipitator, the flue gas desulfurization equipment and chimney connected to the outlet end of the main exhaust fan, and the automatic control system.

[0003] In the sintering production process, the feeding system of the sintering machine is an essential equipment for sintering production and plays an important role in sintering production. It ensures the continuity of sintering production and plays a buffering role in the continuous transportation of sintering materials. At present, the sintering machine ore troughs used in the prior art are all hopper and liner structures. The hopper is welded by steel plates and steel sections, and the liner is bolted or self-lined. The water content of the sintering mixture is about 7%, and the particle size is basically below 10mm. In the production process, the liner often sticks and blocks the material, resulting in poor and uneven discharge, which seriously affects the sintering distribution effect and the stability of the sintering process. It is very difficult to deal with the liner sticking, which not only requires shutdown for maintenance, but also consumes a lot of manpower and material resources, bringing hidden dangers to production safety.

[0004] In the sintering production process, the sintering machine leveler plays the role of leveling and lightly pressing the material surface, and is an indispensable and important device in the material distribution process. The mixed material is evenly distributed on the sintering trolley through the wide belt feeder and the nine-roller distributor. Installing the leveler between the nine-roller distributor and the igniter can make the trolley material surface level and improve the permeability of the material layer, thereby improving the production and quality of the sintered ore.

[0005] Most of the existing levelers use round roller levelers or vertically installed scraper levelers to level the material surface on the sintering trolley. Although the material surface is leveled, the problem it brings is that the material layer is either pressed too tightly or too loose, and the edge effect near the trolley railing is difficult to eliminate. These directly affect the sintering process and are not conducive to increasing production and efficiency.

[0006] At present, most sintering machines use fixed bellows partitions. The upper plane of the fixed partition needs to leave a certain gap with the lower plane of the trolley beam. This gap must be larger than the amount of the trolley's waist collapse, otherwise the trolley beam is easy to scrape the bellows partition and cause an accident, which leads to serious air leakage at the bellows partition device. Severe air leakage at the bellows partition device causes the entire bellows exhaust system to become a connecting vessel, which leads to excessive ignition negative pressure, the material layer is pumped solid, and the material layer has poor air permeability, which seriously affects the production of the sintering machine, and at the same time leads to energy waste, causing serious economic losses to the enterprise. Summary of the invention

[0007] The purpose of the present invention is to provide a refined operating system for a sintering machine, which can not only improve the yield and quality of sintered ore, but also reduce the air leakage rate of the sintering machine and save energy during the sintering production process.

[0008] The object of the present invention is achieved in this way.

[0009] A refined operating system for a sintering machine of the present invention comprises a sintering machine, a sintering trolley, a sintering machine skeleton beam, a feeding device arranged at the front end of the sintering machine, a flat pressing mechanism, a discharging device arranged at the rear end of the sintering machine, a plurality of sintering bellows arranged at the lower part of the sintering machine, a sealing device arranged at the head and the tail of the sintering machine, a sintering bellows sealing device arranged at the cross beam of each sintering bellows, a main flue connected to each sintering bellows, and a PLC automatic control system. The sintering machine trolley is divided into an ignition section, a sintering section, and a sintering terminal section along the running direction of the sintering trolley. The bellows corresponding to the ignition section include a 1# bellows and a 2# bellows connected in sequence. The bellows corresponding to the sintering section include a 3# bellows, a 4# bellows, etc., N bellows, and a tail 3# bellows connected in sequence. The bellows corresponding to the sintering terminal section include a tail 2# bellows and a tail 1# bellows. The bellows are characterized in that: The feeding equipment includes a mixing silo and a feeding regulating device arranged at the bottom of the mixing silo. At least one row of heating device installation holes are opened on the two side walls of the mixing silo. The heating device is composed of a plurality of steam injection components. One end of the steam injection component extends into the mixing silo through the heating device installation hole and the other end is connected to an external steam source. A temperature sensor and a humidity sensor are also installed on the two side walls of the mixing silo and at the bottom of the steam injection component. The feeding regulating device includes a heating device installed at the bottom of the mixing silo. A feeding hopper connected to the feeding hopper, a fan-shaped feeding gate hinged to the lower part of the feeding hopper and an auxiliary feeding adjustment component arranged on the fan-shaped feeding gate; the auxiliary feeding adjustment includes a slideway of the auxiliary feeding adjustment gate arranged on the fan-shaped feeding gate, an auxiliary feeding adjustment gate and an electro-hydraulic push rod slidably connected to the slideway, a hinge support A and a hinge support B are respectively provided on the fan-shaped feeding gate and the auxiliary feeding adjustment door, the power end of the electro-hydraulic push rod is hinged to the hinge support A, and the end of the telescopic cylinder of the electro-hydraulic push rod is hinged to the hinge support B, and the temperature sensor, humidity sensor and each electro-hydraulic push rod are electrically connected to the PLC automatic control system; The material flattening mechanism comprises a material flattening device arranged between the nine-roller distributor and the igniter along the running direction of the sintering trolley and a material pressing device connected to the material flattening device through a material pressing plate bracket. The material flattening device is arranged close to the nine-roller distributor, and the material pressing device is arranged behind the material flattening device and close to the igniter. A sintering material surface unpowered shell breaking and punching device and a radar thickness gauge are arranged at the rear of the igniter. The sintering bellows sealing device comprises guide plates arranged at all bellows cross beams of the sintering section of the sintering machine, an elastic sealing baffle device I arranged at the 2# bellows and the 3# bellows cross beams, an elastic sealing baffle device II arranged at the tail 3# bellows and the tail 2# bellows cross beams, and an elastic sealing baffle device III arranged at the tail 2# bellows and the tail 1# bellows cross beams, and flap valves I and II are arranged at the lower parts of the 1# bellows and the 2# bellows. The elastic sealing baffle device I, the head sealing device, and the flap valve I and the flap valve II make the 1# bellows and the 2# bellows form an independent ignition section exhaust system; the elastic sealing baffle device I and the elastic sealing baffle device II make all the bellows of the sintering section form an independent sintering section exhaust system; flap valves III and flap valves IV are arranged at the lower parts of the tail 2# bellows and the tail 1# bellows The elastic sealing baffle device II, the elastic sealing baffle device III, the tail sealing device and the flap valve III and the flap valve IV form the tail 2# bellows and the tail 1# bellows into an independent exhaust system of the sintering terminal buffer section; a tail material surface thermal imaging thermometer is provided on the tail sealing cover, and the temperature sensor, humidity sensor, each electro-hydraulic push rod, radar thickness gauge and tail material surface thermal imaging thermometer are all electrically connected to the PLC automatic control system.

[0010] Preferably, the steam injection assembly comprises: an inlet pipe, a steam nozzle, a steam branch pipe, a connecting short pipe, a steam stop valve and a steam main pipe. The inlet pipe is welded to the mounting hole on the side wall of the mixed ore bin. The steam nozzle passes through the inlet pipe, one end of which extends into the mixed material bin, and the other end is connected to one end of the connecting short pipe through a flange. The other end of the connecting short pipe is connected to the steam branch pipe through a flange. The steam stop valve is arranged on the steam branch pipe. Each steam branch pipe is connected to an external steam source through a steam main pipe. The steam stop valve is electrically connected to a PLC automatic control system.

[0011] Preferably, the steam injection components are arranged in multiple groups in double rows, and each row is arranged at equal distances on two side walls of the mixture.

[0012] Preferably, the end of the steam nozzle is a pointed tip, and a 120 degree angle is formed at the lower front end of the nozzle with the center line of the steam nozzle as the center. 0 There are three nozzles within the angle range.

[0013] Preferably, the flat material device is arranged on the inner side of the longitudinal support steel beam A on both sides of the knotting machine trolley, and a support frame is provided between the longitudinal support steel beam A, the flat material device comprises a lifting mechanism, a servo electric cylinder and multiple motors and a needle-swing reducer and flat material gear teeth, the lifting mechanism comprises an upper fixed frame, a lower chassis and a longitudinal lifting slide bar, the upper fixed frame is fixed to the top of the support frame, the longitudinal lifting slide bar is four longitudinal lifting slide bars, and a servo electric cylinder mounting hole and a lifting slide bar mounting hole with a bushing are opened on the upper fixed frame, the servo electric cylinder is two, the rod head of the servo electric cylinder passes through the servo electric cylinder mounting hole on the upper fixed frame, the upper part is fixedly connected to the upper fixed frame by bolts and retaining rings, the lower rod head is hinged to the hinge support arranged on the lower chassis by a pin shaft, the bottom of the four longitudinal lifting slide bars is fixedly connected to the lower chassis of the flat material device by bolts, and the upper ends respectively pass through the lifting slide bar mounting holes to be slidably connected to the upper fixed frame; A plurality of shaft holes C are opened at equal distances on the lower chassis, and a plurality of motors and cycloidal reducers are fixedly mounted on the lower chassis. The output shafts of the motors and cycloidal reducers pass through the shaft holes C and are connected to a plurality of flat material wheel gear keys; The pressing device comprises a pressing adjusting screw, a hand wheel, a hanger, a middle pressing plate, an edge pressing plate and an edge pressing plate adjusting screw. One end of the pressure plate bracket is fixedly connected to the two ends of the lower chassis by bolts, and the other end is fixed to the upper part of the two pressure adjustment screws. A pressure adjustment screw insertion hole is opened on the hanger, and the lower end of the pressure adjustment screw passes through the through hole and is fixed to the hanger by a nut, and the upper end is fixedly connected to the hand wheel. The middle pressure plate is fixedly connected to the lower end of the hanger, and the edge pressure plate is fixedly connected to the hanger through the edge pressure plate adjustment screw.

[0014] Preferably, the flat material gear teeth are four-claw flat material gear teeth, each two flat material gear teeth form a group, and the rotation directions of each two groups of flat material gear teeth are opposite.

[0015] Preferably, the unpowered shell breaking and punching device for sintering material surface comprises a support frame and a shell breaking and punching mechanism, wherein the support frame comprises four longitudinal support steel beams B vertically fixedly connected to the skeleton steel beams on both sides of the sintering machine trolley, a short crossbeam respectively connecting the front and rear longitudinal support steel beams along the running direction of the trolley and a long crossbeam connecting the rear left and right longitudinal support steel beams along the width direction of the trolley, and two upper hinge supports are symmetrically arranged on the long crossbeam through bolt assemblies with the center line of the trolley as the center; The shell breaking and punching mechanism includes two crank arms and a rotating round roller. The length of the rotating round roller is set smaller than the width of the sintering machine trolley. Several rows of roller needles are evenly distributed circumferentially on the surface of the rotating round roller. Each row of roller needles is equidistantly distributed in the axial direction of the rotating round roller. Roller shafts are provided at both ends of the rotating round roller. Axial holes are opened at the upper ends of the two crank arms, and bearing seats are provided at the lower ends. The axial holes at the upper ends of the crank arms are respectively hinged to the two upper hinge supports through pins. The roller shafts at both ends of the rotating round roller are respectively placed in the bearing seats at the lower ends of the two crank arms and are rollingly connected to the crank arms. A middle connecting beam is also provided on the inner sides of the two crank arms.

[0016] Preferably, the rotating circular roller surface is evenly distributed with a plurality of rows of roller needles in the circumferential direction, and the roller needles of each two adjacent rows are arranged crosswise and staggered, and the fan-shaped angle between the two adjacent roller needles is 60 0 .

[0017] Preferably, the elastic sealing partition device I comprises a plurality of sealing cover plates, a groove plate composed of an outer sealing plate and an inner sealing plate respectively arranged at both ends of the lower part of the sealing cover plate, a base composed of a horizontal bottom plate and a longitudinal limiting plate, a spring device and a limiting mechanism, The multiple sealing cover plates are arranged along the length direction of the trolley bottom beam, the limiting mechanism includes a positioning pin, an upper small sealing plate, a lower sealing plate and a limiting plate, the lower end of the lower sealing plate is fixedly mounted on the horizontal bottom plate of the base, and the upper part is fixedly connected to the outer side of the longitudinal limiting plate, the upper small sealing plate is welded to the lower part of the outer palace plate, and the limiting plate is fixed to the lower part of the outer palace plate by bolts; The spring device is installed between the sealing cover plate and the base, and includes a spring positioning block, a positioning guide shaft, a positioning guide sleeve, bolts and a spring. The spring positioning block is fixed to the lower part of the sealing cover plate, the positioning guide shaft is fixed to the base, the positioning guide sleeve is inserted into the positioning guide shaft, and the height of the sealing cover plate is adjusted by the bolts. The lower part of the spring is fixedly connected to the positioning guide sleeve, and the upper part is fixedly connected to the lower part of the sealing cover plate by inserting the spring positioning block.

[0018] Preferably, there are four spring devices.

[0019] The advantages of the present invention are: Compared with the prior art, the present invention has the following advantages: 1) The present invention arranges a plurality of steam injection components on both sides of the mixed material silo to increase the heating area of ​​the mixed material, which is beneficial to increase the temperature of the mixed material and the heating speed is fast; in addition, a heating zone is formed between the two layers of heating devices, which can also keep the mixed material warm; the material level meter and the auxiliary feeding regulating door of the present invention can prompt an alarm in time once the material distribution segregation occurs, and the operator can remotely and timely adjust the auxiliary feeding regulating door in the operating room to avoid production accidents caused by the segregation of sintering material, resulting in energy waste.

[0020] 2) Use the rotating flattening gear of the flattening device to flatten the mixture. The two sets of flattening gears rotate in opposite directions, so that the thickness of the material layer can be consistent. Then use the pressing device to compact the mixture to prevent the material on the surface from floating up under the positive pressure of the igniter flame when the trolley enters the igniter, affecting the ignition effect. The edge pressing plate is designed to press down more material on the edge to increase the density of the edge material, with the purpose of reducing the edge effect of the sintering process.

[0021] 3) Since the shell breaking and punching device of the present invention is cantilevered, the upper part is hinged to the hinge support, and the lower part is rollingly connected to the rotating round roller, it does not require any power, can effectively improve the air permeability of the sintering material layer, promote the smooth progress of the sintering process, and ensure the quality of the sintered minerals. At the same time, the present invention has a simple structure, low cost, simple operation, safety and reliability, easy installation, and fast and convenient maintenance and replacement, thereby achieving the purpose of reducing costs and increasing efficiency.

[0022] 4) Since guide plates 1 are provided at each bellows cross beam of the sintering section, elastic sealing partition device I is provided at the bellows cross beams of the ignition section and the front of the sintering section, elastic sealing partition device II is provided at the cross beams of the rear of the sintering section and the sintering terminal section, and elastic sealing partition device III is provided at the last two bellows cross beams of the sintering terminal section. The bellows of the entire exhaust system form three independent exhaust systems, achieving the purpose of preventing air from flowing between the bellows of adjacent sintering sections.

[0023] In summary, the present invention relates to a refined operating system for a sintering machine. The present invention transforms the original sintering machine, adds a heating device to the original feeding equipment, which is beneficial to increase the temperature of the mixed material, improves the flat pressing device, and achieves a consistent material layer thickness; adds a shell breaking and punching mechanism, effectively improves the air permeability of the sintering material layer, and promotes the smooth progress of the sintering process. At the same time, the sealing device at the cross beam of the sintering bellows of each sintering section is improved, so that the bellows of the entire exhaust system form three independent exhaust systems, achieving the purpose of no air leakage between the bellows of adjacent sintering sections. The present invention can enable the sintering machine to achieve refined operation and ensure the quality of sintered minerals. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the refined operating system of the sintering machine of the present invention.

[0025] Figure 2 It is a structural diagram of the feeding equipment.

[0026] Figure 3 This is a side view of the mixing silo.

[0027] Figure 4 for Figure 2 Enlarged view of part A.

[0028] Figure 5 It is a structural schematic diagram of the feeding adjustment device.

[0029] Figure 6 for Figure 5 Side view of.

[0030] Figure 7 for Figure 5 Enlarged view of part B.

[0031] Figure 8 It is a schematic structural diagram of the flat pressing device of the present invention.

[0032] Fig. 9 for Figure 8 AA section view.

[0033] Fig.10 It is a structural diagram of the lifting mechanism.

[0034] Fig.11 for Figure 8 P-direction view.

[0035] Fig.12 for Fig.11 BB cross-sectional view.

[0036] Fig.13 for Fig.11 Enlarged view of part C.

[0037] Fig.14This is a schematic diagram of the structure of the unpowered shell breaking and punching device for sintering material surface.

[0038] Fig.15 for Fig.14 P-direction view.

[0039] Fig.16 Schematic diagram of the cantilever structure.

[0040] Fig.17 It is a schematic diagram of the structure of the rotating circular roller.

[0041] Fig.18 It is a schematic diagram of the structure of the bellows sealing device of the sintering machine.

[0042] Fig.19 It is a schematic diagram of the structure of the elastic sealing partition device.

[0043] Fig. 20 for Fig.19 K-direction view. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] like Figure 1-Figure 20 As shown, a refined operating system of a sintering machine of the present invention comprises a sintering machine, a sintering trolley 10, a sintering machine skeleton beam, a feeding device 1 arranged at the front end of the sintering machine, a flat pressing mechanism 4, a discharging device arranged at the rear end of the sintering machine, a plurality of sintering bellows 5 arranged at the lower part of the sintering machine, a sealing device 6 and a tail sealing device 7 arranged at the head of the sintering machine, a sintering bellows sealing device arranged at the cross beam of each sintering bellows, a main flue connected to each sintering bellows and a PLC automatic control system. The sintering machine trolley is divided into an ignition section, a sintering section and a sintering terminal section along the running direction of the sintering trolley. The bellows corresponding to the ignition section include a 1# bellows and a 2# bellows connected in sequence. The bellows corresponding to the sintering section include a 3# bellows, a 4# bellows, N bellows and a tail 3# bellows connected in sequence. The bellows corresponding to the sintering terminal section include a tail 2# bellows and a tail 1# bellows. It is characterized in that: The feeding equipment 1 comprises a mixing silo 1-1, a feeding regulating device 1-2 arranged at the lower part of the mixing silo 1-1, at least one row of heating device installation holes 1-3 are opened on the two side walls of the mixing silo 1-1, the heating device is composed of a plurality of steam injection components 1-11, one end of the steam injection component 1-11 extends into the mixing silo 1-1 through the heating device installation hole 1-3, and the other end is connected to an external steam source, and a temperature sensor 1-12 and a humidity sensor 1-13 are also installed on the two side walls of the mixing silo 1-1 and at the lower part of the steam injection component 1-11; the feeding regulating device 1-2 comprises a feeding hopper 1-21 connected to the lower part of the mixing silo 1-1, A fan-shaped feeding gate 1-22 hinged to the lower part of the feeding hopper 1-21 and an auxiliary feeding regulating component 1-23 arranged on the fan-shaped feeding gate 1-22; the auxiliary feeding regulating component 1-23 includes a slide groove of the auxiliary feeding regulating door arranged on the fan-shaped feeding gate 1-22, an auxiliary feeding regulating door 1-233 and an electro-hydraulic push rod 1-231 slidably connected to the slide groove, and hinge supports A1-232 and hinge supports B1-234 are respectively provided on the fan-shaped feeding gate 1-22 and the auxiliary feeding regulating door 1-233, the power end of the electro-hydraulic push rod 1-231 is hinged to the hinge support A1-232, and the end of the telescopic cylinder of the electro-hydraulic push rod is hinged to the hinge support B1-234, like Figure 2-Figure 7 As shown, the steam injection assembly 1-11 described in the present invention includes: an inlet pipe 1-112, a steam nozzle 1-111, a steam branch pipe 1-115, a connecting short pipe 1-113, a steam stop valve 1-116 and a steam main pipe 1-114, the inlet pipe 1-112 is welded to the mounting hole 1-3 on the side wall of the mixed ore bin, the steam nozzle 1-111 passes through the inlet pipe 1-112, one end extends into the mixed silo 1-1, and the other end is connected to one end of the connecting short pipe 1-113 through a flange, and the other end of the connecting short pipe 1-113 is connected to the steam branch pipe 1-115 through a flange, the steam stop valve 1-116 is arranged on the steam branch pipe 1-115, each steam branch pipe 1-115 is connected to the external steam source through the steam main pipe 1-114, and the steam stop valve 1-116 is electrically connected to the PLC automatic control system.

[0046] The steam injection components described in the embodiment of the present invention are arranged in multiple groups in double rows, and each row is arranged at equal distances on the two side walls of the mixture.

[0047] The end of the steam nozzle 1-111 is a pointed tip, and a 120 degree angle is formed at the bottom of the front end of the nozzle with the center line of the steam nozzle as the center. 0 There are three nozzles within the angle range.

[0048] The present invention arranges a plurality of steam injection components on both sides of the mixture ore bin, so that the heating area of ​​the mixture is increased, which is beneficial to increase the temperature of the mixture and the heating speed is fast; in addition, a heating belt is formed between the two layers of heating devices, which can also keep the mixture warm.

[0049] The material flattening mechanism 4 of the present invention comprises a material flattening device 4-1 arranged between the nine-roller distributor 2 and the igniter 3 along the running direction of the sintering trolley and a material pressing device 4-2 connected to the material flattening device through a material pressing plate bracket 4-3, wherein the material flattening device 4-1 is arranged close to the nine-roller distributor 2, and the material pressing device 4-2 is arranged behind the material flattening device 4-1 and close to the igniter 3, and a sintering material surface unpowered shell breaking and punching device 9 and a radar thickness gauge 8 are arranged at the rear of the igniter 3; The sintering bellows sealing device comprises a guide plate 5-1 arranged at all bellows cross beams of the sintering section of the sintering machine, an elastic sealing partition device I 5-2 arranged at the cross beams of the 2# bellows and the 3# bellows, an elastic sealing partition device II 5-3 arranged at the cross beams of the tail 3# bellows and the tail 2# bellows, and an elastic sealing partition device III 5-4 arranged at the cross beams of the tail 2# bellows and the tail 1# bellows, and a flap valve I 5-1 arranged at the lower part of the 1# bellows and the 2# bellows. 8 and flap valve II 5-9, the elastic sealing partition device I 5-2, the head sealing device 6 and the flap valve I 5-8 and flap valve II 5-9 make the 1# bellows and the 2# bellows form an independent ignition section exhaust system; the elastic sealing partition device I 5-2 and the elastic sealing partition device II 5-3 make all the bellows of the sintering section form an independent sintering section exhaust system; flap valve III 5-10 and flap valve IV are provided at the lower part of the tail 2# bellows and the tail 1# bellows 5-11, the elastic sealing baffle device II5-3, the elastic sealing baffle device III5-4, the tail sealing device 7 and the flap valve III5-10 and the flap valve IV5-11 form the tail 2# bellows and the tail 1# bellows into an independent exhaust system of the sintering terminal buffer section; a tail material surface thermal imaging thermometer 11 is provided on the tail sealing cover, and the temperature sensor 1-12, the humidity sensor 1-13, the electro-hydraulic push rods, the radar thickness gauge 8 and the tail material surface thermal imaging thermometer 11 are all electrically connected to the PLC automatic control system.

[0050] The PLC automatic control system involved in the present invention is a prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.

[0051] The present invention provides guide plates 5-1 at all wind box cross beams of the sintering section of the sintering machine. The guide plates 5-1 are installed on the wind box cross beams of the sintering section, and the upper part of the guide plates 5-1 is lower than the lower plane of the fixed slide. When the wind passes through the wind box guide plates of the sintering section, directional and orderly wind is formed, which avoids the eddy current phenomenon of the wind at the wind box cross beams of the sintering section, improves the sintering vertical combustion speed, and can improve the running speed of the sintering trolley, increase the output of sintered ore, and provide effective technical support for increasing production and efficiency.

[0052] Since the present invention is provided with a radar thickness gauge and an auxiliary feeding adjustment component, once material segregation occurs, the radar thickness gauge can prompt an alarm in time, and the operator can remotely and timely adjust the auxiliary feeding adjustment component in the operation room to avoid production accidents caused by sintering material segregation and cause waste of energy.

[0053] The flat material device 4-1 described in the present invention is arranged on the inner side of the longitudinal support steel beams A12 on both sides of the knotting machine trolley, and a support frame 13 is arranged between the longitudinal support steel beams A12. The flat material device 4-1 includes a lifting mechanism 4-11, a servo electric cylinder 4-12 and multiple motors and a needle-swing reducer 4-13 and a flat material gear 4-14. The lifting mechanism 4-11 includes an upper fixed frame 4-111, a lower chassis 4-112 and a longitudinal lifting slide bar 4-113. The upper fixed frame 4-111 is fixed on the top of the support frame 13. The longitudinal lifting slide bars 4-113 are four longitudinal lifting slide bars. The upper fixed frame 4-111 is provided with a servo electric cylinder mounting hole and a lifting slide rod mounting hole with a shaft sleeve. There are two servo electric cylinders 4-12. The rod heads of the servo electric cylinders 4-12 pass through the servo electric cylinder mounting holes on the upper fixed frame. The upper part is fixedly connected to the upper fixed frame 4-111 by bolts and retaining rings. The lower rod heads are hinged to the hinge support provided on the lower chassis 4-112 by pins 4-114. The bottoms of the four longitudinal lifting slide rods are fixedly connected to the lower chassis 4-112 of the flat material device by bolts, and the upper ends pass through the lifting slide rod mounting holes and are slidably connected to the upper fixed frame 4-111. A plurality of shaft holes C are opened at equal distances on the lower chassis 4-112, and a plurality of motors and cycloidal reducers are fixedly mounted on the lower chassis 4-112, and the output shafts of the motors and cycloidal reducers pass through the shaft holes C and are key-connected with a plurality of flat material gear teeth 4-14; The pressing device 4-2 includes a pressing adjusting screw 4-21, a hand wheel, a hanger 4-22, a middle pressing plate 4-23, an edge pressing plate 4-24 and an edge pressing plate adjusting screw 4-25. One end of the pressure plate bracket 4-3 is fixedly connected to the two ends of the lower chassis 4-112 by bolts, and the other end is fixed to the upper part of the two pressure adjustment screws 4-21. A pressure adjustment screw insertion hole is opened on the hanger 4-22. The lower end of the pressure adjustment screw 4-21 passes through the through hole and is fixed to the hanger 4-22 by a nut. The upper end is fixedly connected to the handwheel. The middle pressure plate 4-23 is fixedly connected to the lower end of the hanger 4-22, and the edge pressure plate 4-24 is fixedly connected to the hanger 4-22 through the edge pressure plate adjustment screw 4-25.

[0054] The leveling device is used to rotate the leveling gear teeth to level the mixture. The rotation directions of every two sets of leveling gear teeth 4-14 are opposite, so that the thickness of the material layer can be consistent. Then the pressing device is used to compact the surface of the mixture 14 to prevent the mixture on the material surface from being blown up by the positive pressure of the igniter flame when the trolley enters the igniter, thereby affecting the ignition effect.

[0055] The design of the edge pressing plate 4-24 is to press down the mixed material at the edge more to increase the density of the edge material, with the purpose of reducing the edge effect of the sintering process.

[0056] The flat material gear described in the present invention is a four-claw flat material gear, each two flat material gears form a group, and each two groups of flat material gears rotate in opposite directions. The flat material gear with this structure has a better flat material effect.

[0057] In order to solve the problem of air permeability in the sintering process, improve the utilization of useful wind, and reduce the power consumption of the main exhaust fan, the sintering material surface unpowered shell breaking and punching device 9 described in the present invention includes a support frame and a shell breaking and punching mechanism, and the support frame includes four longitudinal support steel beams B9-11 vertically fixedly connected to the skeleton steel beams on both sides of the sintering machine trolley, a short crossbeam 9-12 respectively connecting the front and rear two longitudinal support steel beams 9-11 along the running direction of the trolley and a long crossbeam 9-13 connecting the left and right rear longitudinal support steel beams 9-11 along the width direction of the trolley, and on the long crossbeam 9-13, two upper hinge supports 9-15 are symmetrically arranged through bolt assemblies 9-14 with the center line of the trolley as the center; The shell breaking and punching mechanism includes two crank arms 9-23 and a rotating roller 9-24. The length of the rotating roller 9-24 is smaller than the width of the sintering machine trolley 10. A plurality of rows of roller needles 9-25 are evenly distributed in the circumferential direction of the surface of the rotating roller 9-24. Each row of roller needles 9-25 is evenly distributed in the axial direction of the rotating roller 9-24. Roller shafts 9-241 are provided at both ends of the rotating roller 9-24. An axial hole 9-231 is opened at the upper end of 3, and a bearing seat 9-232 is provided at the lower end. The axial hole 9-231 at the upper end of the crank arm 9-23 is hinged to the two upper hinge supports 9-15 through a pin shaft 9-21, and the roller shafts 9-241 at both ends of the rotating round roller 9-24 are respectively placed in the bearing seats 9-232 at the lower ends of the two crank arms 9-23, and are rollingly connected to the crank arms. A middle connecting beam 9-22 is also provided on the inner side of the two crank arms 9-23.

[0058] The rotating circular roller 9-24 of the present invention is evenly distributed with a plurality of rows of roller needles 9-25 on its surface in the circumferential direction, and the roller needles 9-25 of each two adjacent rows are arranged in a staggered manner, and the fan-shaped angle between the two adjacent roller needles 9-25 is 60 0 This shell breaking and punching device is cantilevered, with the upper part hinged to the hinge support and the lower part rollingly connected to the rotating roller. It does not require any power and can effectively improve the air permeability of the sintering material layer, promote the smooth progress of the sintering process, and ensure the quality of the sintered minerals.

[0059] In order to solve the serious problem of air leakage at the bellows partition, the elastic sealing partition device I5-2 of the present invention includes a plurality of sealing cover plates 5-24, a groove plate composed of an outer sealing palace plate 5-21 and an inner sealing palace plate 5-22 respectively arranged at both ends of the lower part of the sealing cover plate, a base 5-211 composed of a horizontal bottom plate and a longitudinal limiting plate, a spring device and a limiting mechanism, The multiple sealing cover plates 5-24 are arranged along the length direction of the trolley bottom beam, and the limiting mechanism includes a positioning pin 5-26, an upper small sealing plate 5-29, a lower sealing plate 5-210 and a limiting plate 5-27. The lower end of the lower sealing plate 5-210 is fixedly mounted on the horizontal bottom plate of the base, and the upper part is fixedly connected to the outer side of the longitudinal limiting plate. The upper small sealing plate 5-29 is welded to the lower part of the outer palace plate 5-21, and the limiting plate 5-27 is fixed to the lower part of the outer palace plate 5-21 by bolts 5-28; The spring device is installed between the sealing cover plate 5-24 and the base 5-211, and includes a spring positioning block 5-215, a positioning guide shaft 5-212, a positioning guide sleeve 5-213, a bolt 5-214 and a spring 5-25. The spring positioning block 5-215 is fixed to the lower part of the sealing cover plate 5-24, the positioning guide shaft 5-212 is fixed to the base 5-211, and the bolt 5-214 is used to adjust the height of the sealing cover plate. The lower part of the spring 5-25 is fixedly connected to the positioning guide sleeve 5-213, and the upper part is fixedly connected to the lower part of the sealing cover plate 5-24 by passing through the spring positioning block 5-215.

[0060] There are four spring devices, which are installed between the sealing cover plate 5-24 and the base 5-211.

[0061] The structures of the elastic sealing diaphragm device II and the elastic sealing diaphragm device III of the present invention are the same as that of the elastic sealing diaphragm device I, and are not described in detail herein.

[0062] The present invention provides elastic sealing baffle devices at the cross beams of the 2# bellows and the 3# bellows, at the cross beams of the tail 3# bellows and the tail 2# bellows, and at the cross beams of the tail 2# bellows and the tail 1# bellows, so that the bellows of the entire exhaust system are formed into three independent exhaust systems, achieving the purpose of preventing air from leaking between the bellows of adjacent sintering sections, effectively reducing the air leakage rate, and maintaining the temperature of the sintered ore at the tail of the machine, so as to provide a higher flue gas temperature for the ring cooler and improve the capacity of waste heat power generation.

[0063] To sum up, the present invention heats the feeding equipment through the above technical scheme during the sintering production process to preheat the mixture, and then flattens the mixture through the leveling device and the pressing device, and loosens the sintering material surface through the unpowered shell breaking and punching device, which can effectively increase the temperature and air permeability of the sintering mixture, reduce the adverse effect of the over-wet layer on sintering, and improve the sintering process; at the same time, the bellows sealing device forms an independent exhaust system for the ignition section, sintering section and sintering terminal section of the sintering machine, effectively reducing the air leakage rate, achieving the purpose of energy saving and emission reduction, and achieving the purpose of reducing costs, increasing efficiency and improving economic benefits.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refined operating system for a sintering machine, comprising a sintering machine, a sintering trolley, a sintering machine skeleton beam, a feeding device arranged at the front end of the sintering machine, a flat pressing mechanism, a discharging device arranged at the rear end of the sintering machine, a plurality of sintering bellows arranged at the lower part of the sintering machine, a sealing device arranged at the head and the tail of the sintering machine, a sintering bellows sealing device arranged at the cross beam of each sintering bellows, a main flue connected to each sintering bellows, and a PLC automatic control system. The sintering machine trolley is divided into an ignition section, a sintering section, and a sintering terminal section along the running direction of the sintering trolley. The bellows corresponding to the ignition section include a 1# bellows and a 2# bellows connected in sequence. The bellows corresponding to the sintering section include a 3# bellows, a 4# bellows, N bellows, and a tail 3# bellows connected in sequence. The bellows corresponding to the sintering terminal section include a tail 2# bellows and a tail 1# bellows. The bellows are characterized in that: The feeding equipment includes a mixing silo and a feeding regulating device arranged at the bottom of the mixing silo. At least one row of heating device installation holes are opened on the two side walls of the mixing silo. The heating device is composed of a plurality of steam injection components. One end of the steam injection component extends into the mixing silo through the heating device installation hole and the other end is connected to an external steam source. A temperature sensor and a humidity sensor are also installed on the two side walls of the mixing silo and at the bottom of the steam injection component. The feeding regulating device includes a heating device installed at the bottom of the mixing silo. A feeding hopper connected to the feeding hopper, a fan-shaped feeding gate hinged to the lower part of the feeding hopper and an auxiliary feeding adjustment component arranged on the fan-shaped feeding gate; the auxiliary feeding adjustment includes a slide groove of the auxiliary feeding adjustment gate arranged on the fan-shaped feeding gate, an auxiliary feeding adjustment gate and an electro-hydraulic push rod slidably connected to the slide groove, a hinge support A and a hinge support B are respectively provided on the fan-shaped feeding gate and the auxiliary feeding adjustment door, the power end of the electro-hydraulic push rod is hinged to the hinge support A, and the end of the telescopic cylinder of the electro-hydraulic push rod is hinged to the hinge support B, The material flattening mechanism comprises a material flattening device arranged between the nine-roller distributor and the igniter along the running direction of the sintering trolley and a material pressing device connected to the material flattening device through a material pressing plate bracket. The material flattening device is arranged close to the nine-roller distributor, and the material pressing device is arranged behind the material flattening device and close to the igniter. A sintering material surface unpowered shell breaking and punching device and a radar thickness gauge are arranged at the rear of the igniter. The sintering bellows sealing device comprises guide plates arranged at all bellows cross beams of the sintering section of the sintering machine, an elastic sealing baffle device I arranged at the 2# bellows and the 3# bellows cross beams, an elastic sealing baffle device II arranged at the tail 3# bellows and the tail 2# bellows cross beams, and an elastic sealing baffle device III arranged at the tail 2# bellows and the tail 1# bellows cross beams, and flap valves I and II are arranged at the lower parts of the 1# bellows and the 2# bellows. The elastic sealing baffle device I, the head sealing device, and the flap valve I and the flap valve II make the 1# bellows and the 2# bellows form an independent ignition section exhaust system; the elastic sealing baffle device I and the elastic sealing baffle device II make all the bellows of the sintering section form an independent sintering section exhaust system; flap valves III and flap valves IV are arranged at the lower parts of the tail 2# bellows and the tail 1# bellows The elastic sealing baffle device II, the elastic sealing baffle device III, the tail sealing device and the flap valve III and the flap valve IV form the tail 2# bellows and the tail 1# bellows into an independent exhaust system of the sintering terminal buffer section; a tail material surface thermal imaging thermometer is provided on the tail sealing cover, and the temperature sensor, humidity sensor, each electro-hydraulic push rod, radar thickness gauge and tail material surface thermal imaging thermometer are all electrically connected to the PLC automatic control system.

2. The refined operating system of the sintering machine according to claim 1, characterized in that: The steam injection assembly includes: an inlet pipe, a steam nozzle, a steam branch pipe, a connecting short pipe, a steam stop valve and a steam main pipe. The inlet pipe is welded to the mounting hole on the side wall of the mixed ore bin. The steam nozzle passes through the inlet pipe, one end of which extends into the mixed material bin, and the other end is connected to one end of the connecting short pipe through a flange. The other end of the connecting short pipe is connected to the steam branch pipe through a flange. The steam stop valve is arranged on the steam branch pipe. Each steam branch pipe is connected to an external steam source through a steam main pipe. The steam stop valve is electrically connected to a PLC automatic control system.

3. The refined operating system of the sintering machine according to claim 2, characterized in that: The steam injection components are arranged in multiple groups in double rows, and each row is arranged at equal distances on two side walls of the mixture.

4. The refined operating system of the sintering machine according to claim 2, characterized in that: The end of the steam nozzle is a pointed tip, and a 120 degree angle is formed at the bottom of the front end of the nozzle with the center line of the steam nozzle as the center. 0 There are three nozzles within the angle range.

5. The refined operating system of the sintering machine according to claim 1, characterized in that: The flat material device is arranged on the inner side of the longitudinal support steel beam A on both sides of the knot machine trolley, and a support frame is arranged between the longitudinal support steel beam A. The flat material device includes a lifting mechanism, a servo electric cylinder and multiple motors and a needle-swing reducer and flat material gear teeth. The lifting mechanism includes an upper fixed frame, a lower chassis and a longitudinal lifting slide bar. The upper fixed frame is fixed to the top of the support frame. The longitudinal lifting slide bar is four longitudinal lifting slide bars. The upper fixed frame is provided with a servo electric cylinder mounting hole and a lifting slide bar mounting hole with a bushing. There are two servo electric cylinders. The rod head of the servo electric cylinder passes through the servo electric cylinder mounting hole on the upper fixed frame, and the upper part is fixedly connected to the upper fixed frame by bolts and retaining rings. The lower rod head is hinged to the hinge support arranged on the lower chassis through a pin shaft. The bottoms of the four longitudinal lifting slide bars are fixedly connected to the lower chassis of the flat material device by bolts, and the upper ends pass through the lifting slide bar mounting holes respectively and are slidably connected to the upper fixed frame. A plurality of shaft holes C are opened at equal distances on the lower chassis, and a plurality of motors and cycloidal reducers are fixedly mounted on the lower chassis. The output shafts of the motors and cycloidal reducers pass through the shaft holes C and are connected to a plurality of flat material wheel gear keys; The pressing device comprises a pressing adjusting screw, a hand wheel, a hanger, a middle pressing plate, an edge pressing plate and an edge pressing plate adjusting screw. One end of the pressure plate bracket is fixedly connected to the two ends of the lower chassis by bolts, and the other end is fixed to the upper part of the two pressure adjustment screws. A pressure adjustment screw insertion hole is opened on the hanger, and the lower end of the pressure adjustment screw passes through the through hole and is fixed to the hanger by a nut, and the upper end is fixedly connected to the hand wheel. The middle pressure plate is fixedly connected to the lower end of the hanger, and the edge pressure plate is fixedly connected to the hanger through the edge pressure plate adjustment screw.

6. The refined operating system of the sintering machine according to claim 5, characterized in that: The flat material gear teeth are four-claw flat material gear teeth, each two flat material gear teeth form a group, and the rotation directions of each two groups of flat material gear teeth are opposite.

7. The refined operating system of the sintering machine according to claim 1, characterized in that: The unpowered shell breaking and punching device for sintering material surface comprises a support frame and a shell breaking and punching mechanism. The support frame includes four longitudinal support steel beams B vertically fixedly connected to the skeleton steel beams on both sides of the sintering machine trolley, a short crossbeam connecting the front and rear longitudinal support steel beams respectively along the running direction of the trolley, and a long crossbeam connecting the rear left and right longitudinal support steel beams along the width direction of the trolley. On the long crossbeam, two upper hinge supports are symmetrically arranged through bolt assemblies with the center line of the trolley as the center. The shell breaking and punching mechanism includes two crank arms and a rotating round roller. The length of the rotating round roller is set smaller than the width of the sintering machine trolley. Several rows of roller needles are evenly distributed circumferentially on the surface of the rotating round roller. Each row of roller needles is equidistantly distributed in the axial direction of the rotating round roller. Roller shafts are provided at both ends of the rotating round roller. Axial holes are opened at the upper ends of the two crank arms, and bearing seats are provided at the lower ends. The axial holes at the upper ends of the crank arms are respectively hinged to the two upper hinge supports through pins. The roller shafts at both ends of the rotating round roller are respectively placed in the bearing seats at the lower ends of the two crank arms and are rollingly connected to the crank arms. A middle connecting beam is also provided on the inner sides of the two crank arms.

8. The refined operating system of the sintering machine according to claim 7, characterized in that: The rotating circular roller surface is uniformly provided with a plurality of rows of roller needles in the circumferential direction, and the roller needles of each adjacent row are arranged crosswise and staggered, and the fan-shaped angle between the adjacent two roller needles is 60 0 .

9. The refined operating system of the sintering machine according to claim 1, characterized in that: The elastic sealing partition device I comprises a plurality of sealing cover plates, a groove plate composed of an outer sealing plate and an inner sealing plate respectively arranged at both ends of the lower part of the sealing cover plate, a base composed of a horizontal bottom plate and a longitudinal limiting plate, a spring device and a limiting mechanism, The multiple sealing cover plates are arranged along the length direction of the trolley bottom beam, the limiting mechanism includes a positioning pin, an upper small sealing plate, a lower sealing plate and a limiting plate, the lower end of the lower sealing plate is fixedly mounted on the horizontal bottom plate of the base, and the upper part is fixedly connected to the outer side of the longitudinal limiting plate, the upper small sealing plate is welded to the lower part of the outer palace plate, and the limiting plate is fixed to the lower part of the outer palace plate by bolts; The spring device is installed between the sealing cover plate and the base, and includes a spring positioning block, a positioning guide shaft, a positioning guide sleeve, bolts and a spring. The spring positioning block is fixed to the lower part of the sealing cover plate, the positioning guide shaft is fixed to the base, the positioning guide sleeve is inserted into the positioning guide shaft, and the height of the sealing cover plate is adjusted by the bolts. The lower part of the spring is fixedly connected to the positioning guide sleeve, and the upper part is fixedly connected to the lower part of the sealing cover plate by inserting the spring positioning block.

10. The refined operating system of the sintering machine according to claim 9, characterized in that: There are four spring devices.

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