Intelligent red ore device of belt conveyor for conveying high-temperature materials and working method

Abstract

The present application relates to the technical field of belt conveyors, and specifically discloses a belt conveyor intelligent red ore device for conveying high-temperature materials and a working method thereof, which comprises a temperature measuring thermal imager system, a belt tail water spraying system, a belt head water spraying system and a machine head hopper water spraying system. The temperature measuring thermal imager system is provided with a temperature measuring thermal imager, which is installed above the belt conveyor and faces the incoming material direction. The tail of the belt conveyor is located below the feeding hopper, and a discharging hopper is arranged below the head of the belt conveyor. The belt tail water spraying system is installed above the tail of the belt conveyor, and the water spraying nozzles of the belt tail water spraying system are located at the back side of the feeding hopper. The belt head water spraying system is installed above the head of the belt conveyor, and the atomizing nozzles of the belt head water spraying system are located at the front side of the temperature measuring thermal imager. The machine head hopper water spraying system is installed on one side of the discharging hopper, and the atomizing nozzles of the machine head hopper water spraying system extend into the interior of the discharging hopper. The present application improves the automation and intelligence of the on-site equipment operation and eliminates various risks.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, specifically to an intelligent red ore crushing device and its working method for conveying high-temperature materials via a belt conveyor. Background Technology

[0002] Belt conveyors are the most common equipment in the metallurgical industry, especially in ironmaking areas. They are widely praised for their large capacity, long transport distance, simple layout, and good stability.

[0003] Currently, during the sintering and pelletizing process, fluctuations in production processes, changes in feed batches and types, as well as start-up and shutdown, can all cause excessively high temperatures in the finished ore from the sintering and pelletizing ring coolers. This high temperature reduces the service life of the conveyor belts. Sometimes, the falling red ore can also cause the conveyor belts to catch fire, damaging equipment and even leading to larger production accidents. Therefore, controlling the temperature of the red ore on the finished product line is crucial. Previously, operators relied on experience to manually operate valves for cooling, but this crude method easily led to accidents such as belt burns and fires. A complete set of red ore removal equipment for conveyor belts is needed to scientifically and rationally control the temperature of red ore on the conveyor belts.

[0004] To address the current rudimentary method of manually tapping red ore onto sintering and pelletizing conveyor belts, which relies on experience and limited belt corridor space, and where the amount of water applied depends entirely on experience, posing significant safety risks to equipment operation and causing fluctuations in sinter production and quality, an intelligent red ore tapping device and operating method for conveyor belts transporting high-temperature materials is urgently needed. This would resolve the significant safety risks and belt burn hazards associated with manual control of sintering and pelletizing conveyor belts. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide an intelligent red ore crushing device and its working method for conveying high-temperature materials using a belt conveyor.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an intelligent red ore crushing device for conveying high-temperature materials by belt conveyor, including a temperature measuring thermal imager system, a belt conveyor tail water spraying system, a belt conveyor head water spraying system and a head funnel water spraying system. The temperature measuring thermal imager system is equipped with a temperature measuring thermal imager, which is installed above the belt conveyor and faces the material in the direction of material inflow. The tail of the belt conveyor is located below the feed funnel, and the head of the belt conveyor is located below the discharge funnel.

[0007] A belt conveyor tail water spray system is installed above the tail end of the belt conveyor, with the spray nozzles of the belt conveyor tail water spray system located behind the feed hopper. A belt head water spray system is installed above the head end of the belt conveyor, with the atomizing nozzles of the belt head water spray system located in front of the temperature measuring thermal imager. A machine head hopper water spray system is installed on one side of the discharge hopper, with the atomizing nozzles of the machine head hopper water spray system extending into the discharge hopper.

[0008] Specifically, the temperature measuring thermal imager is a water-cooled, self-cleaning, high-temperature resistant temperature measuring thermal imager, which is installed inside the temperature measuring thermal imager housing, which is made of double-layer stainless steel structure.

[0009] Specifically, the upper part of the thermal imager housing is connected to a slide plate via a support rod. The slide plate is slidably connected in a groove of a mounting slide block, which is fixed to the top of the belt conveyor. A rectangular groove is provided on one side of the groove, which is used to control the slide plate to be disassembled within the groove. An adapter plate is fixedly connected to one side of the slide plate. The adapter plate has a through hole through which a connecting rod threaded rod passes and is fixed with a nut. The other end of the connecting rod threaded rod is connected to a locking block via a nut. The locking block has a U-shaped structure and is fixed inside the mounting slide block. The connecting rod threaded rod adjusts and fixes the lateral position of the thermal imager above the belt conveyor.

[0010] Specifically, the double-layer stainless steel structure of the thermal imager housing is a cooling jacket cavity. The cooling jacket cavity is equipped with a water inlet and a water outlet. The water inlet is connected to a water tank through a water inlet pipe, and a water pump is installed on the water inlet pipe. The water outlet is connected to the water tank through a return water pipe. The water pump controls the cooling water to circulate between the water tank and the thermal imager housing. The thermal imager is connected to the control cabinet of the alarm control system through a cable, and the cable is covered with a conduit.

[0011] Specifically, the outer shell of the thermal imager is equipped with a dust removal vent, which is connected to the thermal imager but not to the cooling jacket cavity. The dust removal vent is connected to an air compressor through an air supply pipe.

[0012] Specifically, the belt conveyor tail water spraying system includes a solenoid valve, a water spray nozzle, and a water pumping pipe. The water spray nozzle is installed on the water outlet side of the water pumping pipe, and the solenoid valve is installed on the water pumping pipe.

[0013] The belt head water pumping system includes a booster pump, a second solenoid valve, a second water pumping pipe, and an atomizing nozzle. The atomizing nozzle is installed on the water outlet side of the second water pumping pipe, and the booster pump and the second solenoid valve are installed on the second water pumping pipe.

[0014] The water pumping system of the machine head funnel includes a solenoid valve three, a water pumping pipe three, and an atomizing nozzle. The atomizing nozzle is installed on the water outlet side of the water pumping pipe three, and the solenoid valve three is installed on the water pumping pipe three.

[0015] The inlet sides of water supply pipes 1, 2, and 3 are all connected to fire hydrants.

[0016] Specifically, the atomizing nozzles of the belt head water spraying system and the machine head funnel water spraying system both adopt the same structure of non-powered self-rotating atomizing nozzles. The atomizing nozzle includes a nozzle branch pipe and a nozzle rotor. The nozzle housing is installed at the end of the nozzle branch pipe, and the nozzle rotor is installed at the end of the nozzle housing. The nozzle positioning sleeve is connected to the outside of the nozzle housing, and the nozzle positioning sleeve is wrapped around the outside of the nozzle rotor and the nozzle housing.

[0017] Specifically, a nozzle protection mechanism is installed at the atomizing nozzle of the water spraying system of the machine head funnel. The nozzle protection mechanism includes a nozzle and a protective liner. The protective liner is sealed on the side wall of the discharge funnel. The upper outer part of the protective liner is rotatably mounted on the equipment base frame through a fixed hinge one. The lower outer part of the protective liner is rotatably connected to the telescopic rod of the linear motion mechanism through a movable hinge. The base of the linear motion mechanism is rotatably mounted on the equipment base frame through a fixed hinge two. The linear motion mechanism controls the flipping of the protective liner through the telescopic rod and provides an opening at the bottom.

[0018] The nozzle is mounted on the upper part of the nozzle bracket, and the nozzle is connected to the water inlet pipe. The water inlet pipe is fixedly mounted on the nozzle bracket, and the nozzle bracket is fixedly connected to the slider. The slider is slidably connected to the fixed guide rail, and the bottom of the fixed guide rail is mounted on the equipment base frame. A rack is mounted on the upper part of the nozzle bracket, and the rack meshes with a gear. The gear is mounted on the output shaft of the motor reducer, and the motor reducer is fixedly mounted on the equipment base frame. The motor reducer controls the nozzle to extend into and out of the opening formed by the lower part of the protective liner.

[0019] Specifically, the solenoid valve one, solenoid valve two, solenoid valve three, booster pump, and thermal imager are all connected to the control cabinet of the alarm control system via cables.

[0020] A method for operating an intelligent red ore crushing device for conveying high-temperature materials via a belt conveyor includes the following steps:

[0021] S1. A water-cooled, self-cleaning, high-temperature resistant thermal imager above the belt conveyor monitors the surface temperature of the sintered pellets conveyed on the belt conveyor in real time, and the collected temperature data is fed back to the control cabinet connected to the thermal imager.

[0022] S2. The control cabinet processes the temperature data fed back by the thermal imager and checks it against the previously processed and stored database to confirm whether the temperature exceeds the safe temperature. The alarm control system has preset automatic control program parameters, specifically including setting a first-level set temperature T1, a second-level set temperature T2, a third-level set temperature T3, a fourth-level set temperature T4, and a fifth-level set temperature T5. If the temperature does not exceed the safe temperature, the intelligent red ore extraction device continues to monitor production. Once the protection value is exceeded, the over-temperature range is confirmed. Simultaneously, the solenoid valve of the belt conveyor tail water spray system opens, wetting the belt before receiving material.

[0023] S3. The belt head water spraying system is some distance from the temperature measuring thermal imager. As the overheated sintered pellets are detected entering the belt head water spraying system, the second solenoid valve opens. The booster pump confirms whether to start based on the on-site feedback data to force cooling of the sintered pellets.

[0024] S4. When the temperature detected by the thermal imager exceeds T5, the linear running mechanism controls the protective liner to form an opening on the outer wall of the discharge hopper, the motor reducer controls the nozzle to extend into the discharge hopper, the belt conveyor head hopper water pumping system is fully opened, the solenoid valve opening degree is 100%, and the booster pump frequency is 50HZ.

[0025] S5. Based on the temperature data of the sintered pellets detected by the thermal imager, shut down the corresponding solenoid valves and booster pumps if the temperature data is not detected.

[0026] S6. When the temperature of the material detected by the thermal imager is less than the T1 temperature for 30 seconds, the intelligent red ore breaking device of the sintering pellet conveyor belt stops.

[0027] The present invention has the following beneficial effects:

[0028] The intelligent red ore tapping device and working method designed in this invention for conveying high-temperature materials on belt conveyors uses a thermal imager to monitor and analyze data during normal production and transportation of sintering and pelletizing ore in real time, and adopts reasonable cooling methods to avoid belt burns in the sintering and pelletizing areas. It eliminates the operational risks and labor intensity of the original manual tapping of red ore based on historical experience, and improves the automation and intelligence of on-site equipment operation. It has practical significance for promoting intelligent production in steel plants under Industry 4.0.

[0029] The intelligent red ore crushing device and working method of the belt conveyor for conveying high-temperature materials designed in this invention realizes scientific management of the sintering and pelletizing finished product areas, eliminating various risks. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the intelligent red ore crushing device for conveying high-temperature materials via a belt conveyor.

[0031] Figure 2 This is a schematic diagram of the thermal imaging temperature measurement system.

[0032] Figure 3 yes Figure 2 A partial sectional view along the BB direction.

[0033] Figure 4 yes Figure 2 A partial view along the C-axis.

[0034] Figure 5 yes Figure 4 A partial sectional view along the D direction.

[0035] Figure 6 This is a block diagram of the water cooling system of a thermal imager.

[0036] Figure 7 This is a cross-sectional view of the atomizing nozzle.

[0037] Figure 8 This is a schematic diagram of the structure of the nozzle protection mechanism installed inside the discharge hopper.

[0038] In the diagram: 1-Temperature thermal imager system, 101-Belt conveyor corridor, 102-Temperature thermal imager, 103-Slide plate, 104-Mounting slide, 105-Slide groove, 106-Adapter block, 107-Connecting rod and lead screw, 108-Clamping block, 109-Rectangular groove, 110-Temperature thermal imager housing, 111-Dust removal air outlet, 112-Air compressor, 113-Water tank, 114-Inlet water pipe, 115-Water pump, 116-Return water pipe, 117-Control cabinet;

[0039] 2-Fire water pipe; 3-Belt conveyor tail water spray system; 4-Belt head water spray system; 5-Head funnel water spray system; 6-Alarm control system; 7-Booster pump; 8-Solenoid valve one; 9-Solenoid valve two; 10-Solenoid valve three; 11-Belt conveyor; 12-Feed funnel; 13-Discharge funnel;

[0040] 401-Sprinkler branch pipe, 402-Sprinkler housing, 403-Sprinkler rotor, 404-Sprinkler positioning sleeve;

[0041] 501-Sprayer head; 502-Sprayer head bracket; 503-Fixed guide rail; 504-Slider; 505-Water inlet pipe; 506-Rack and pinion; 507-Gear; 508-Fixed hinge one; 509-Moving hinge; 510-Protective liner; 511-Linear motion mechanism; 512-Fixed hinge two. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1-8 As shown, an intelligent red ore crushing device for conveying high-temperature materials via a belt conveyor includes a temperature measuring thermal imager system 1, a belt conveyor tail water spraying system 3, a belt conveyor head water spraying system 4, a machine head funnel water spraying system 5, and an alarm control system 6. The temperature measuring thermal imager system 1 is equipped with a temperature measuring thermal imager 102, which is installed above the belt conveyor 11 and faces the material inlet direction. The tail of the belt conveyor 11 is located below the feed funnel 12, and the head of the belt conveyor 11 is provided with a discharge funnel 13.

[0044] A belt conveyor tail water spraying system 3 is installed above the tail of the belt conveyor 11. The spray nozzles of the belt conveyor tail water spraying system 3 are located behind the feed hopper 12. A belt head water spraying system 4 is installed above the head of the belt conveyor 11. The atomizing nozzles of the belt head water spraying system 4 are located in front of the temperature measuring thermal imager 102. A machine head hopper water spraying system 5 is installed on one side of the discharge hopper 13. The atomizing nozzles of the machine head hopper water spraying system 5 extend into the discharge hopper 13.

[0045] The thermal imager 102 at the top of the belt conveyor 101 detects high-temperature materials on the belt conveyor 11 in real time. Based on the database stored in the alarm control system 6 and historical experience, reasonable and targeted solutions should be adopted. Through a series of measures such as the belt conveyor tail water spray system 3, the belt head water spray system 4, and the head funnel water spray system 5, the safety hazards caused by sintering and pelletizing red ore are eliminated.

[0046] The thermal imager 102 is a water-cooled, self-cleaning, high-temperature resistant thermal imager. It is installed inside a housing 110, which has a double-layered 204 stainless steel structure serving as a cooling jacket. Cooling water circulates through this jacket for cooling, while the front end cover uses compressed air to create an air curtain for dust prevention and self-cleaning. The 304 stainless steel also provides good corrosion resistance. This cooling system is a reliable guarantee for the normal operation of the thermal imager 102 in harsh high-temperature environments.

[0047] The upper part of the thermal imaging camera housing 110 is connected to the slide plate 103 via a support rod. The slide plate 103 is slidably connected in the slide groove 105 of the mounting slide 104. The mounting slide 104 is fixed to the top of the belt corridor 101. A rectangular groove 109 is provided on one side of the slide groove 105. The rectangular groove 109 is used to control the slide plate 103 to be disassembled in the slide groove 105.

[0048] One side of the slide plate 103 is fixedly connected to the adapter plate 106. The adapter plate 106 has a through hole. The connecting rod 107 passes through the through hole and is fixed by a nut. The other end of the connecting rod 107 is connected to the locking block 108 by a nut. The locking block 108 adopts a U-shaped structure and is fixed inside the mounting slide 104. The connecting rod 107 adjusts and fixes the lateral position of the temperature measuring thermal imager above the belt conveyor.

[0049] The cooling jacket cavity is equipped with an inlet and an outlet. The inlet is connected to the water tank 113 through an inlet pipe 114. A water pump 115 is installed on the inlet pipe 114. The outlet is connected to the water tank 113 through a return pipe 116. The water pump 115 controls the cooling water to circulate between the water tank 113 and the housing 110 of the thermal imager. The thermal imager 102 is connected to the control cabinet 117 of the alarm control system 6 through a cable. The cable is covered with a high-temperature conduit.

[0050] The housing 110 of the thermal imager is provided with a dust removal vent 111. The dust removal vent 111 is connected to the thermal imager 102 but not to the cooling jacket cavity. The dust removal vent 111 is connected to the air compressor 112 through an air supply pipe.

[0051] To achieve better cooling effect of the cooling water on the thermal imager 102, a separate constant temperature cooling water tank 113 is established. During construction, the volume of the cooling water tank 113 must be able to meet twice the water volume of the cooling jacket cavity and connecting water pipes of the thermal imager 102. Softened water or demineralized water should be used as much as possible to prevent corrosion or structural damage to the pipelines. The cooling water flow rate should be maintained between 0.3-0.6 L / s, and the water temperature should be ≤35℃. A chiller or other methods should be used for cooling.

[0052] The cooling water pipes must be able to withstand a water pressure of no less than 0.2 MPa. If this pressure requirement cannot be met, the pipe diameter must be increased to increase the flow area. The cooling jacket cavity connection pipes use flexible metal hoses and quick connectors to facilitate the maintenance and replacement of the thermal imager 102. For a water pressure of 0.1 MPa in the cooling jacket cavity, a pressure reducing valve is installed before the cooling jacket cavity inlet to prevent damage to the thermal imager 102 due to water pressure.

[0053] When selecting the cooling water pump 115, the appropriate power should be selected according to the pipe length and the volume of the cooling jacket cavity. The power of the chiller should be sufficient to cool the water in the water tank 113 to below 35°C.

[0054] In response to the high level of dust in the finished product conveyor belt corridor 101, compressed air can be connected to the viewing window for dust removal. The dust removal air pressure is 0.1-0.4 MPa. A compressed air pipeline can be connected and an air compressor 112 can be installed as a backup machine. If the pipeline pressure is insufficient, the air compressor 112 can be started at any time.

[0055] The belt conveyor tail water spray system 3 includes a solenoid valve 8, a water spray nozzle and a water spray pipe 1. The water spray nozzle is installed on the outlet side of the water spray pipe 1. The solenoid valve 8 is installed on the water spray pipe 1. The inlet side of the water spray pipe 1 is connected to the fire water pipe 2. The belt is pre-wetted and cooled before contacting the material to prevent the material from scalding the belt.

[0056] The water spray nozzles of the belt conveyor tail water spray system 3 are selected to spray water or high-temperature resistant solvents to reduce the surface temperature of the belt, so that the belt surface and the sintered and pelletized ore surface form an isolation layer.

[0057] The belt head water pumping system 4 includes a booster pump 7, a second solenoid valve 9, a second water pumping pipe, and an atomizing nozzle. The atomizing nozzle is installed on the outlet side of the second water pumping pipe. The booster pump 7 and the second solenoid valve 9 are installed on the second water pumping pipe. The inlet side of the second water pumping pipe is connected to the fire water pipe 2. This is a key part for cooling sintered ore, and the cooling effect of sintered and pelletized ore is crucial.

[0058] The thermal imager 102 at the tail of the conveyor belt detects the presence of sintered and pelletized red ore and sends feedback to the alarm control system 6 of the thermal imager 102. Based on the speed of the conveyor belt 11 and the distance between the thermal imager 102 and the water spraying system 4 at the head of the belt, the red ore enters the water spraying area, the solenoid valve 2 9 opens, the booster pump 7 starts, and the non-powered self-rotating atomizing nozzle sprays fire-fighting water onto the surface of the high-temperature sintered ore to cool it down.

[0059] The booster pump 7 is a variable frequency speed control drive, which increases the speed of the pump 7 and adjusts the opening degree of the solenoid valve 9 in real time according to the temperature of the sintered pellets detected by the thermal imager 102.

[0060] The machine head funnel water pumping system 5 includes a solenoid valve 310, a water pumping pipe 3, and an atomizing nozzle. The atomizing nozzle is installed on the outlet side of the water pumping pipe 3. The solenoid valve 310 is installed on the water pumping pipe 3. The inlet side of the water pumping pipe 3 is connected to the fire water pipe 2.

[0061] When the amount of sintered red ore, the temperature of the sintered ore, and the particle size are very high, the water spraying system 4 at the head of the belt cannot cool down the part close to the belt. During the sintering process in the conveyor head funnel, the water spraying device cools down the sintering machine again by spraying the back of the sintered ore.

[0062] The atomizing nozzle opening is angled upwards, and the dust accumulation in the machine head funnel is relatively large. Compressed air is used to periodically blow away the non-powered self-rotating atomizing nozzle.

[0063] Both the atomizing nozzles of the belt head water spraying system 4 and the atomizing nozzles of the machine head funnel water spraying system 5 adopt the same structure of non-powered self-rotating atomizing nozzles. The atomizing nozzle includes a nozzle branch pipe 401, a nozzle housing 402, a nozzle rotor 403, and a nozzle positioning sleeve 404. The nozzle housing 402 is installed at the end of the nozzle branch pipe 401, and the nozzle rotor 403 is installed at the end of the nozzle housing 402. The nozzle positioning sleeve 404 is connected to the outside of the nozzle housing 402, and the nozzle positioning sleeve 404 wraps around the outside of the nozzle rotor 403 and the nozzle housing 402. The non-powered self-rotating atomizing nozzle includes a nozzle branch pipe 401 for connection with a water supply device. A swirling chamber, a centrifugal chamber, and a nozzle are arranged sequentially along the direction of water flow inside the nozzle branch pipe 401. The valve core can rotate in the swirling chamber. The water flow forms a water channel through the deflector plate of the valve core, which drives the valve core to rotate, thereby increasing the atomization area of ​​the atomizing nozzle, improving uniformity, and better wetting and cooling of sintered and pelletized ores.

[0064] A nozzle protection mechanism is installed at the atomizing nozzle of the water spraying system 5 in the machine head funnel. The nozzle protection mechanism includes a nozzle 501 and a protective liner 510. The protective liner 510 is sealed on the side wall of the discharge funnel 13. The upper outer part of the protective liner 510 is rotatably mounted on the equipment base frame through a fixed hinge 508. The lower outer part of the protective liner 510 is rotatably connected to the telescopic rod of the linear motion mechanism 511 through a movable hinge 509. The linear motion mechanism 511 adopts a telescopic cylinder or a telescopic hydraulic cylinder. The base of the linear motion mechanism 511 is rotatably mounted on the equipment base frame through a fixed hinge 512. The linear motion mechanism 511 controls the flipping of the protective liner 510 through the telescopic rod and provides an opening at the bottom.

[0065] The nozzle 501 is mounted on the upper part of the nozzle bracket 502. The nozzle 501 is connected to the water inlet pipe 505. The rear of the water inlet pipe 505 is a flexible hose with a reserved length. The water inlet pipe 505 is fixedly mounted on the nozzle bracket 502. The nozzle bracket 502 is fixedly connected to the slider 504. The slider 504 is slidably connected to the fixed guide rail 503. The bottom of the fixed guide rail 503 is mounted on the equipment base frame. The nozzle bracket 502 is mounted on the upper part of the rack 506. The rack 506 meshes with the gear 507. The gear 507 is mounted on the output shaft of the motor reducer. The motor reducer is fixedly mounted on the equipment base frame. The motor reducer controls the nozzle 501 to extend into the opening formed at the lower part of the protective liner 510.

[0066] When the amount of sintered red ore and the particle size of the sintered ore are large, the control system first immediately controls the linear motion mechanism 511 to extend, and the protective liner 510 moves clockwise to create space for the water spraying mechanism to flow out. Then, driven by the motor reducer, the gear 507 moves clockwise, driving the rack 506, the nozzle bracket 502, and the nozzle 501 to move obliquely downward along a straight line through the space box left by the protective liner 510, reaching the position below the material surface where the nozzle 501 is perpendicular to the direction of material surface movement. The solenoid valve 310 immediately activates to achieve the cooling effect of spraying the reverse side of the sintered ore.

[0067] When the temperature sensor detects that the temperature has dropped to a reasonable value, the solenoid valve 310 closes, the motor reducer drives the gear 507 to rotate, which in turn drives the rack 506, the nozzle bracket 502, and the nozzle 501 to reset; the linear motion mechanism 511 retracts, driving the protective liner 510 to reset.

[0068] Solenoid valve 1 (8), solenoid valve 2 (9), solenoid valve 3 (10), booster pump 7, and thermal imager 102 are all connected to the control cabinet 117 of the alarm control system 6 via cables.

[0069] A method for operating an intelligent red ore crushing device for conveying high-temperature materials via a belt conveyor includes the following steps:

[0070] 1. A water-cooled, self-cleaning, high-temperature resistant thermal imager 102 above the belt conveyor 11 monitors the surface temperature of the sintered pellets conveyed on the belt conveyor 11 in real time, and the collected temperature data is fed back to the control cabinet 117 connected to the thermal imager 102.

[0071] 2. The control cabinet 117 processes the temperature data fed back by the thermal imager 102 and checks it against the previously processed and stored database to confirm whether the temperature exceeds the safe temperature. The alarm control system 6 accumulates historical temperature data from the on-site thermal imager 102 and presets relevant parameters for the automatic control program. Specifically, it sets a first-level set temperature T1, a second-level set temperature T2, a third-level set temperature T3, a fourth-level set temperature T4, and a fifth-level set temperature T5. If the temperature does not exceed the safe temperature, the intelligent red ore mining device continues to monitor production. Once the temperature exceeds the protection value, the over-temperature range is confirmed. At the same time, the solenoid valve of the belt conveyor tail water spray system is opened to wet the belt before receiving material.

[0072] 3. The belt head water pumping system 4 is a certain distance from the temperature measuring thermal imager 102. As the overheated sintered pellets are detected entering the belt head water pumping system 4, the solenoid valve 2 9 opens, and the booster pump 7 confirms whether to start based on the on-site feedback data to force cooling of the sintered pellets.

[0073] 4. When the temperature detected by the thermal imager 102 exceeds T5, the linear running mechanism 511 controls the protective liner 510 to form an opening on the outer wall of the discharge hopper 13. The motor reducer controls the nozzle 501 to extend into the discharge hopper 13. The water spraying system 5 of the head hopper of the belt conveyor 11 is fully opened, all solenoid valves are 100% open, and the booster pump 7 is 50HZ.

[0074] 5. Based on the temperature data of the sintered pellets detected by the thermal imager 102, shut down all corresponding solenoid valves and booster pumps 7.

[0075] 6. When the temperature of the material detected by the thermal imager 102 is less than the T1 temperature for 30 seconds, the intelligent red ore breaking device of the sintering pellet conveyor belt will stop.

[0076] The specific steps of the preset automatic control program for the alarm control system 6 are as follows:

[0077] Compare the material temperature T with the preset T1. If T < T1, close solenoid valve 8 and stop the water spraying operation on the material surface.

[0078] If T≥T1 and T<T2, the solenoid valve 9 of the belt head water spraying system 4 is opened to 30%, and the solenoid valve 8 of the belt tail water spraying system 3 is opened to 50%.

[0079] If T≥T2 and T<T3, the solenoid valve 9 of the belt head water spraying system 4 is opened to 60%, and the solenoid valve 8 of the belt tail water spraying system 3 is opened to 80%.

[0080] If T≥T3 and T<T4, the solenoid valve 9 of the belt head water spraying system 4 is opened to 100%, and the solenoid valve 8 of the belt tail water spraying system 3 is opened to 100%.

[0081] If T≥T4 and T<T5, the solenoid valve 9 of the belt head water spraying system 4 is opened to 100%, the booster pump 7 is opened, the water pressure is not lower than 0.5MPa, and the solenoid valve 8 of the belt tail water spraying system 3 is opened to 100%.

[0082] If T≥T5, the solenoid valve 310 of the water spraying system 5 at the machine head funnel is opened to 100%, the solenoid valve 29 of the water spraying system 4 at the belt head is opened to 100%, the booster pump 7 is opened, the water pressure is not lower than 0.8MPa, and the solenoid valve 18 of the water spraying system 3 at the tail of the belt conveyor is opened to 100%.

[0083] Ultimately, the temperature T entering the next process is guaranteed to be less than T1. When the amount of sintered red ore and the particle size of the sintered ore are large, during the reverse transport of the sintered ore in the conveyor belt head hopper, the water spraying device sprays water onto the back of the sintered ore to cool the sintering machine again.

[0084] In this embodiment, the first set temperature T1 is set to 135℃, the second set temperature T2 is set to 150℃, the third set temperature T3 is set to 165℃, the fourth set temperature T4 is set to 180℃, and the fifth set temperature T5 is set to 200℃. The specific values ​​need to be adjusted according to the on-site data.

[0085] Under the control of the alarm control system 6 connected to the control cabinet 117, unified cooling control is implemented for the belt conveyor 11 and the high-temperature sintering and pelletizing ore, improving the coordination effect of the red ore beating device, ensuring the cooling effect, and also precisely controlling the cooling water volume to avoid excessive waste and secondary pollution to the environment.

[0086] In automatic control mode, it can also be linked with the control unit of belt conveyor 11. When belt conveyor 11 is started, the corresponding belt conveyor red ore-pulling device is started, thus achieving efficient response.

[0087] This invention is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

[0088] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A smart red ore crushing device for conveying high-temperature materials using a belt conveyor, characterized in that, It includes a temperature measuring thermal imager system, a belt conveyor tail water spraying system, a belt head water spraying system, and a machine head funnel water spraying system. The temperature measuring thermal imager system is equipped with a temperature measuring thermal imager, which is installed above the belt conveyor and faces the material in the direction of material inflow. The tail of the belt conveyor is located below the feed funnel, and the head of the belt conveyor is located below the discharge funnel. A belt conveyor tail water spray system is installed above the tail end of the belt conveyor. The spray nozzles of the belt conveyor tail water spray system are located behind the feed hopper. A belt head water spray system is installed above the head end of the belt conveyor. The atomizing nozzles of the belt head water spray system are located in front of the temperature measuring thermal imager. A machine head hopper water spray system is installed on one side of the discharge hopper. The atomizing nozzles of the machine head hopper water spray system extend into the discharge hopper. A nozzle protection mechanism is installed at the atomizing nozzle of the water spraying system in the machine head funnel. The nozzle protection mechanism includes a nozzle and a protective liner. The protective liner is sealed on the side wall of the discharge funnel. The upper outer part of the protective liner is rotatably mounted on the equipment base frame through a fixed hinge one. The lower outer part of the protective liner is rotatably connected to the telescopic rod of the linear motion mechanism through a movable hinge. The base of the linear motion mechanism is rotatably mounted on the equipment base frame through a fixed hinge two. The linear motion mechanism controls the flipping of the protective liner through the telescopic rod and provides an opening at the bottom. The nozzle is mounted on the upper part of the nozzle bracket, and the nozzle is connected to the water inlet pipe. The water inlet pipe is fixedly mounted on the nozzle bracket, and the nozzle bracket is fixedly connected to the slider. The slider is slidably connected to the fixed guide rail, and the bottom of the fixed guide rail is mounted on the equipment base frame. A rack is mounted on the upper part of the nozzle bracket, and the rack meshes with a gear. The gear is mounted on the output shaft of the motor reducer, and the motor reducer is fixedly mounted on the equipment base frame. The motor reducer controls the nozzle to extend into and out of the opening formed by the lower part of the protective liner.

2. The intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor as described in claim 1, characterized in that, The thermal imager is a water-cooled, self-cleaning, high-temperature resistant thermal imager. The thermal imager is installed inside the thermal imager housing, which is made of double-layer stainless steel.

3. The intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor according to claim 2, characterized in that, The upper part of the thermal imager housing is connected to a sliding plate via a support rod. The sliding plate is slidably connected in a groove of a mounting slide block, which is fixed to the top of the belt conveyor. A rectangular groove is provided on one side of the groove, which is used to control the disassembly and removal of the sliding plate within the groove. An adapter plate is fixedly connected to one side of the sliding plate. The adapter plate has a through hole through which a connecting rod threaded rod passes and is fixed with a nut. The other end of the connecting rod threaded rod is connected to a locking block via a nut. The locking block has a U-shaped structure and is fixed inside the mounting slide block. The connecting rod threaded rod adjusts and fixes the lateral position of the thermal imager above the belt conveyor.

4. The intelligent red ore mining device for conveying high-temperature materials using a belt conveyor according to claim 2, characterized in that, The double-layer stainless steel structure of the thermal imager housing is a cooling jacket cavity. The cooling jacket cavity is equipped with a water inlet and a water outlet. The water inlet is connected to a water tank through a water inlet pipe, and a water pump is installed on the water inlet pipe. The water outlet is connected to the water tank through a return water pipe. The water pump controls the cooling water to circulate between the water tank and the thermal imager housing. The thermal imager is connected to the control cabinet of the alarm control system through a cable, and the cable is covered with a conduit.

5. The intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor according to claim 4, characterized in that, The outer casing of the thermal imager is equipped with a dust removal vent, which is connected to the thermal imager but not to the cooling jacket cavity. The dust removal vent is connected to an air compressor through an air supply pipe.

6. The intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor according to claim 1, characterized in that, The belt conveyor tail water spraying system includes a solenoid valve, a water spray nozzle, and a water pumping pipe. The water spray nozzle is installed on the water outlet side of the water pumping pipe, and the solenoid valve is installed on the water pumping pipe. The belt head water pumping system includes a booster pump, a second solenoid valve, a second water pumping pipe, and an atomizing nozzle. The atomizing nozzle is installed on the water outlet side of the second water pumping pipe, and the booster pump and the second solenoid valve are installed on the second water pumping pipe. The water pumping system of the machine head funnel includes a solenoid valve three, a water pumping pipe three, and an atomizing nozzle. The atomizing nozzle is installed on the water outlet side of the water pumping pipe three, and the solenoid valve three is installed on the water pumping pipe three. The inlet sides of water supply pipes 1, 2, and 3 are all connected to fire hydrants.

7. The intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor according to claim 6, characterized in that, The atomizing nozzles of the belt head water spraying system and the machine head funnel water spraying system both adopt the same structure of non-powered self-rotating atomizing nozzles. The atomizing nozzle includes a nozzle branch pipe and a nozzle rotor. The nozzle housing is installed at the end of the nozzle branch pipe, and the nozzle rotor is installed at the end of the nozzle housing. The nozzle positioning sleeve is connected to the outside of the nozzle housing, and the nozzle positioning sleeve is wrapped around the outside of the nozzle rotor and the nozzle housing.

8. The intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor according to claim 6, characterized in that, The solenoid valve 1, solenoid valve 2, solenoid valve 3, booster pump, and thermal imager are all connected to the control cabinet of the alarm control system via cables.

9. The working method of the intelligent red ore crushing device for conveying high-temperature materials using a belt conveyor according to any one of claims 1-8, characterized in that, Includes the following steps: S1. A water-cooled, self-cleaning, high-temperature resistant thermal imager above the belt conveyor monitors the surface temperature of the sintered pellets conveyed on the belt conveyor in real time, and the collected temperature data is fed back to the control cabinet connected to the thermal imager. S2. The control cabinet processes the temperature data fed back by the thermal imager and checks it against the previously processed and stored database to confirm whether the temperature exceeds the safe temperature. The alarm control system has preset automatic control program parameters, specifically including setting a first-level set temperature T1, a second-level set temperature T2, a third-level set temperature T3, a fourth-level set temperature T4, and a fifth-level set temperature T5. If the temperature does not exceed the safe temperature, the intelligent red ore extraction device continues to monitor production. Once the protection value is exceeded, the over-temperature range is confirmed. Simultaneously, the solenoid valve of the belt conveyor tail water spray system opens, wetting the belt before receiving material. S3. The belt head water spraying system is some distance from the temperature measuring thermal imager. As the overheated sintered pellets are detected entering the belt head water spraying system, the second solenoid valve opens. The booster pump confirms whether to start based on the on-site feedback data to force cooling of the sintered pellets. S4. When the temperature detected by the thermal imager exceeds T5, the linear running mechanism controls the protective liner to form an opening on the outer wall of the discharge hopper, the motor reducer controls the nozzle to extend into the discharge hopper, the belt conveyor head hopper water pumping system is fully opened, the solenoid valve opening degree is 100%, and the booster pump frequency is 50HZ. S5. Based on the temperature data of the sintered pellets detected by the thermal imager, shut down the corresponding solenoid valves and booster pumps if the temperature data is not detected. S6. When the temperature of the material detected by the thermal imager is less than the T1 temperature for 30 seconds, the intelligent red ore breaking device of the sintering pellet conveyor belt stops.

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