SU996481A2

SU996481A2 - Apparatus for controlling batch level in hopper of sintering machine

Info

Publication number: SU996481A2
Application number: SU803222578A
Authority: SU
Inventors: Андрей Григорьевич Астахов; Виктор Николаевич Шелестов; Вячеслав Федорович Здольник; Сергей Владимирович Гавриш
Original assignee: Киевский институт автоматики им.ХХУ съезда КПСС
Priority date: 1980-12-24
Filing date: 1980-12-24
Publication date: 1983-02-15

Description

Изобретение относится к агломерационному производству в черной металлургии..The invention relates to sinter production in the steel industry ..

По основному авт. св. № 870468 известно устройство для регулирования ⁵уровня шихты в бункере агломашины, которое содержит приводной питатель с регулятором, весоизмеритель, расположенный в загрузочной части окомковательного барабана, челноковый питатель бункера, первый и второй двухрукавные делители потока шихты, регулятор нагрузки, датчик, задатчик и ре- . гулятор уровня шихты в бункере* агломашины, блок регулирования расхода воздуха, установленный на трубопроводе, датчик, задатчик и регулятор гранулометрического состава шихты, поступающей на агломерационную машину, ₂₀циркуляционный конвейер, при этом первый двухрукавный делитель потока ;шихты установлен на выходе окомковательного барабана и выполнен в виде сопел, сжатым воздухом расположенных по всей ширине струи шихты со стороны рукава загрузки части шихты во второй двухрукавный делитель потока шихты и соединенных трубопроводом с блоком регулирования расхода воздуха, один рукав первого делителя потока шихты с датчиком гранулометрического состава шихты расположен над вторым 'делителем потока шихты, один рукав ‘ которого расположен над Челноковым питателем, а другой совместно с другим рукавом первого делителя потока шихты расположен над циркуляционным конвейером,, конец которого расположен над входом окомковательного барабана, второй делитель потока шихты ' через исполнительный механизм соединен с выходом регулятора уровня, вход которого совместно с входом регулятора нагрузки соединен с выходом датчика и задатчика уровня шихты, кроме того, вход регулятора нагрузки через привод соединен с питателем, выходAccording to the main author. St. No. 870468, a device is known for controlling the ^5th level of the charge in the sinter machine hopper, which contains a drive feeder with a regulator, a weight meter located in the loading part of the pelletizing drum, a shuttle hopper feeder, first and second two-arm charge flow dividers, load regulator, sensor, adjuster and . charge level adjuster in the sinter hopper *, air flow control unit installed on the pipeline, sensor, adjuster and particle size regulator of the charge fed to the sinter machine, ₂₀ circulation conveyor, with the first two-arm flow divider; charge installed at the exit of the pelletizing drum and made in the form of nozzles, with compressed air located across the entire width of the charge stream from the side of the sleeve for loading part of the charge into the second two-arm charge flow divider and connected by a pipeline to the unit air flow control unit, one sleeve of the first charge flow divider with a particle size distribution sensor is located above the second 'charge flow divider, one sleeve' of which is located above the Shuttle feeder, and the other, together with the other sleeve of the first charge flow divider, is located above the circulation conveyor, end which is located above the entrance of the pelletizing drum, the second charge flow divider through the actuator is connected to the output of the level regulator, the input of which together with the input regulates The load contact is connected to the output of the sensor and charge level adjuster, in addition, the input of the load regulator is connected to the feeder through the drive, the output

996481 4 ронка с шибером) расположен первый двухрукавный распределитель 9 потока, выполненный в виде сопел 10, которые расположены по всей ширине струи ших₅ ты со стороны рукава загрузки части шихты во второй делитель 8 потока и соединенные через блок 11 регулирования расхода воздуха с трубопроводом 12 сжатого воздуха, один рукав первого распределителя 9 потоке шихты, гранулометрический состав которой контролирует датчик 13 гранулометрического состава, расположен над вторым распределителем 8 потока шихты, а другой - над первым циркуляционным конвейером 14, конец которого расположен над входом окомковательного барабана 7, выход датчика 13 и задатчика 15 гранулометрического состава шихты чеI рез регулятор 16 гранулометрического состава шихты подключены к входу блока 11 регулирования расхода воздуха через сопла 10, один рукав второго распределителя 8 потока шихты расположен над Челноковым питателем 17 бункера 18 агломерационной машины, а другой - над вторым циркуляционным конвейером 19, имеющим весоизмеритель 20 с датчиком 21 и задатчиком 22 расхода, бункер 18 оснащен датчиком 23 уровня, выход которого совместно с выходом задатчика 24 уровня подключен к входу регулятора 25 уровня, а совместно с выходом датчика веса 6 весоизмерителя 5 соединен с входом регулятора 4 нагрузки, выход регулятора 25 уровня через исполнительный механизм 26 соединен с регулирующим органом второго распределителя ,8 потока шихты, выход датчика 21 весоизмерителя 20 совместно с выходом датчика 22 подключен ко второму ДУ регулятора нагрузки.996481 4 gates with a gate), the first two-sleeve flow distributor 9 is located, made in the form of nozzles 10, which are located along the entire width of the jet ₅ th from the side of the loading sleeve of the charge part into the second flow divider 8 and connected through the air flow control unit 11 to the pipeline 12 compressed air, one sleeve of the first distributor 9 of the charge stream, the particle size distribution of which controls the particle size distribution sensor 13, is located above the second distributor 8 of the charge stream, and the other above the first circulation con Nomer 14, the end of which is located above the entrance of the pelletizing drum 7, the output of the sensor 13 and the setter 15 of the particle size distribution of the charge through the regulator 16 of the particle size distribution of the mixture is connected to the input of the air flow control unit 11 through the nozzle 10, one sleeve of the second charge flow distributor 8 is located above the shuttle the feeder 17 of the hopper 18 of the sintering machine, and the other above the second circulation conveyor 19, having a weight meter 20 with a sensor 21 and a flow controller 22, the hopper 18 is equipped with a level sensor 23, the output to which together with the output of the level switch 24 is connected to the input of the level 25 controller, and together with the output of the weight sensor 6 of the load meter 5 is connected to the input of the load controller 4, the output of the level 25 controller through the actuator 26 is connected to the regulatory body of the second distributor, 8 charge stream, output the sensor 21 of the weight meter 20 together with the output of the sensor 22 is connected to the second remote control of the load controller.

Устройство работает следующим разом.The device works as follows.

Шихта из бункера 1 питателем 2 по,дается в окомковательный барабан.The mixture from the hopper 1 feeder 2, is given in pelletizing drum.

Контроль производительности питателя 2 осуществляется весоизмерителем.Monitoring the performance of the feeder 2 is carried out by a weight meter.

Шихта после окомковательного барабана 7 поступает в первый двухрукавный распределитель 9 потока шихты, в котором шихта струей воздуха сопел 10 разделяется на две части. Одна часть шихты, кондиционная НЪсле. первого распределителя 9, гранулометрический состав которой контролируется датчиком 13, через второй распределитель 8 по3 датчика и задатчика гранулометрического состава шихты соединен с входом регулятора, выход которого подключен к входу блока регулирования расхода воздуха С1 ].The mixture after pelletizing drum 7 enters the first two-sleeve distributor 9 of the charge stream, in which the charge is jetted by nozzles 10 into two parts. One part of the charge, air-conditioned. the first distributor 9, the particle size distribution of which is monitored by the sensor 13, through the second distributor 8 to 3 of the sensor and the master particle size distribution of the charge is connected to the input of the controller, the output of which is connected to the input of the air flow control unit C1].

В этом устройстве излишек кондиционной части шихты после второго двухрукавного делителя потока шихты по циркуляционному конвейеру поступает снова на вход окомковательного бараба-ю на и снова участвует в процессе окомкования. Повторное участие излишка кондиционной шихты в процессе окомкования приводит к увеличению гранул шихты выше оптимальной, вследствие чего качество шихты, поступающей на • агломерационную машину, будет низкое.In this device, the excess conditioned portion of the charge after the second two-arm divider of the charge stream through the circulation conveyor is fed back to the input of the pelletizing drum and again participates in the pelletizing process. The repeated participation of the excess conditional charge in the pelletizing process leads to an increase in the charge granules above the optimum, as a result of which the quality of the charge delivered to the sintering machine will be low.

Целью изобретения является повышение качества шихты, поступающей на агломерационную машину за счет стабилизации ее гранулометрического состава.The aim of the invention is to improve the quality of the charge entering the sintering machine by stabilizing its particle size distribution.

Поставленная цель достигается тем, что в устройство дополнительно введен, второй циркуляционный конвейер с весоизмерителем, задатчик расхода, при этом начало второго циркуляционного конвейера расположено под вторым рукавом второго двухрукавного делителя потока шихты, выход датчика веса весоизмерителя совместно с выходом задатчика расхода подключен ко второму входу регулятора нагрузки, а начало первого циркуляционного конвейера расположено под вторым· рукавом первого двухрукавного делителя потока шихты.This goal is achieved by the fact that a second circulation conveyor with a weight meter, a flow rate adjuster is additionally introduced into the device, while the beginning of the second circulation conveyor is located under the second sleeve of the second two-arm charge flow divider, the output of the load cell weight sensor together with the output of the flow rate adjuster is connected to the second input of the regulator load, and the beginning of the first circulation conveyor is located under the second sleeve of the first two-arm charge flow divider.

Излишек кондиционной шихты после второго двухр'укавного делителя потока шихты поступает не на вход окомковательного барабана, а на вход первого двухрукавного делителя потока шихты, который по сигналу датчика, задатчика и регулятора стабилизирует гранулометрический состав шихты, поступающей на агломерационную машину.The excess conditional charge after the second two-arm batch flow divider is supplied not to the pelletizing drum input, but to the input of the first two-arm batch flow divider, which stabilizes the particle size distribution of the charge fed to the sintering machine by the signal of the sensor, adjuster and regulator.

На чертеже представлена функциональная схема устройства для регулирования уровня шихты в бункере агломерационной машины.The drawing shows a functional diagram of a device for controlling the level of the charge in the hopper of the sinter machine.

Устройство для регулирования уровня шихты в бункере агломерационной машины включает в себя бункер 1 с питателем 2 и с приводом 3, подключен ный к выходу регулятора 4 нагрузки, весоизмеритель 5 с датчиком веса 6, ^: окомковательный барабан 7, на выходе которого перед двухрукавным распределителем 8 потока шихты (например, во30 об45A device for controlling the level of the charge in the hopper of the sintering machine includes a hopper 1 with a feeder 2 and with a drive 3, connected to the output of the load regulator 4, a weight meter 5 with a weight sensor 6 ^{: a} pelletizing drum 7, the output of which is in front of the two-sleeve distributor 8 of the stream charge (for example, vo30 ob45

996481 4 тока шихты поступает на челноковый питатель Т7 бункера 18 агломерационной машины, а другая часть шихты, некондиционная .после второго распределителя 9 потока шихты,поступает на _ 5 первый циркуляционный конвейер 14, который отсеянную (некондиционную) часть шихты возвращает на вход окомковательного барабана 7· Регулятор гранулометрического состава шихты *0 по сигналам датчика 13 и задатчика 15 гранулометрического состава с помощью блока 11 регулирования расходом воздуха управляет расходом воздуха через сопла 10 первого распредели-*5 теля 9 потока шихты таким образом, чтобы гранулометрический состав шихты, поступающей во второй двухрукавный распределитель 8 потока шихты, был постоянен и равен заданному. 20 Регулятор 4 нагрузки по сигналам датчика веса 6 весоизмерителя 5 через привод 3 стабилизирует производительность питателя 2. Кондиционная .часть шихты после первого двухрукав- 25 ного распределителя 9 потока поступает на второй двухрукавный распределитель 8 потока шихты, который в зависимости от степени заполнения бункера 18 также разделяет шихту на две 30 части. Первая часть шихты через челноковый питатель 17 поступает в бункер 18, а другая - на второй циркуляционный конвейер 19· Если уровень шихты в бункере 18 изменился (например, увеличился), то разностный си! нал датчика 23, задатчика 24 уровня и датчика 27 обратной связи поступает на вход регулятора 25 уровня, который через исполнительный механизм ₄₀26 разделяет шихту так, чтобы уровень шихты в бункере 18 стал равным заданному. Одновременно сигналы датчика 23 и задатчика 24 поступают на один вход регулятора 4 нагрузки, который _4Jизменяет (уменьшает) производительность питателя 2. Излишек кондиционной шихты после второго двухрукавного распределителя 8 потока шихты по второму циркуляционному конвейеру 19 _мпоступает снова в первый двухрукавный делитель потока шихты. При отклонении (например, уменьшении) расхода излишка кондиционной шихты на втором циркуляционном конвейере от заданного регулятор 4 нагрузки изменяет (увеличивает) производительность питателя 2 бункера 1 так, чтобы расход излишка .кондиционной шихты во втором циркуляционном конвейере был постоянен и равен заданному (задатчик 22). Возвращение излишка кондиционной части шихты после второго двухрукавного распределителя потока шихты с помощью второго циркуляционного конвейера не в окомковательный барабан, а в первый двухрукавный распределитель потока шихты, стабилизирует заданный гранулометрический состав шихты, стабилизация гранулометрического состава шихты, повышает качество последней, вследствие чего агломашина обеспечивается шихтой повышенного качества, что повышает производительность агломашины на 0,5~1,0% и повышает качество агломерата.996481 4 charge current is supplied to the shuttle feeder T7 of the hopper 18 of the sinter machine, and the other part of the charge, substandard. After the second distributor 9 of the charge stream, is fed to _ 5 the first circulation conveyor 14, which returns the screened (substandard) part of the charge to the input of the pelletizing drum 7 · The regulator of the particle size distribution of the charge * 0 according to the signals of the sensor 13 and the setter 15 of the particle size distribution using the air flow control unit 11 controls the air flow through the nozzles 10 of the first distributor * 5 of the device 9 p charge flow so that the particle size distribution of the charge entering the second two-sleeve distributor 8 of the charge stream is constant and equal to the specified. 20 The load regulator 4, according to the signals of the weight sensor 6 of the weight meter 5 through the drive 3, stabilizes the performance of the feeder 2. The conditioned part of the charge after the first two-sleeve distributor 9 of the stream flows to the second two-sleeve distributor 8 of the charge stream, which depending on the degree of filling of the hopper 18 also divides the mixture into two 30 parts. The first part of the charge through the shuttle feeder 17 enters the hopper 18, and the other to the second circulation conveyor 19 · If the level of the charge in the hopper 18 has changed (for example, increased), then the difference s! The sensor 23, level setter 24 and feedback sensor 27 are fed to the input of the level controller 25, which, through the actuator ₄₀ 26, separates the charge so that the level of the charge in the hopper 18 becomes equal to the set value. At the same time, the signals of the sensor 23 and the setter 24 are fed to one input of the load controller 4, which _4J changes (decreases) the performance of the feeder 2. The excess conditional charge after the second two-sleeve charge flow distributor 8 along the second circulation conveyor 19 _{m is} fed back to the first two-sleeve charge flow divider. If the flow rate of the excess conditional charge in the second circulation conveyor deviates (for example, decreases) from the predetermined load controller 4 changes (increases) the capacity of the feeder 2 of the hopper 1 so that the flow rate of the excess .conditioned charge in the second circulation conveyor is constant and equal to the set value (control unit 22) . The return of the excess conditioned portion of the charge after the second two-arm charge flow distributor using the second circulation conveyor not to the pelletizing drum, but to the first two-arm charge flow distributor stabilizes the given particle size distribution, stabilizes the charge particle size distribution, improves the quality of the latter, as a result of which the sinter machine is provided with an increased charge quality, which increases the productivity of the sinter machine by 0.5 ~ 1.0% and improves the quality of the sinter.

Экономический эффект от использования предложенного технического ре- : шения составляет 50,0 тыс. руб. в год.The economic effect of using the proposed technical solution: 50.0 thousand rubles. in year.

Claims

(541 DEVICE FOR REGULATING THE LEVEL OF CHARGE IN THE BUNKER OF THE AGGLOMERATION MACHINE located in the loading part of the pelletizing drum, small hopper feeder, first and second two-arm charge flow dividers, load controller, sensor, setting unit and charge level controller in the bunker recloser, air flow control unit mounted on the pipeline, sensor, adjuster and regulator of the grain-size composition of the charge supplied to the crushing machine, a circulation conveyor, the first two-arm splitter of the flow (DIESES installed at the exit of the pelletizing drum and made nozzles, compressed air located across the entire width of the charge stream from the side of the loading hose of the part of the charge to the second two-arm splitter of the charge flow and connected by pipeline to the flow control unit air, one sleeve of the first charge stream divider with a charge granulometric composition sensor is located above the second charge stream divider, one sleeve of which is located above the Shuttle feeder, and the other together with another sleeve of the first charge stream divider above the circulation conveyor the secondary drum, the second charge flow divider is connected through an actuator to the output of a level regulator, the input of which, together with the input of the load regulator, is connected to The output of the sensor and the charge level setting device, in addition, the input of the load regulator is connected via a drive to the feeder, the output of the sensor and the setting unit of the granulometric composition of the charge is connected to the input of the regulator whose output is connected to the input of the air flow rate control unit D. D. The parts of the charge after the second two hose dividers of the charge flow along the circulation conveyor are fed back to the entrance of the pelletizing drum and are again involved in the eye forging process. Repeated participation of the excess conditional charge in the process of punching leads to an increase in the charge granules above the optimum, as a result of which the quality of dihchit entering the sintering machine will be low. The aim of the invention is to increase the quality of the charge supplied to the sintering machine by stabilizing its granulometric composition. The goal is achieved by additionally introducing a second circulation conveyor with a weight measuring device into the device, the flow master, the beginning of the second circulation conveyor is located under the second sleeve of the second two-arm charge flow divider, the output of the weight meter of the weight meter together with the output of the flow meter is connected to the second regulator input the torus of the load, and the beginning of the first circulation conveyor is located under the second, the arm of the first two-arm divider of the charge flow. The excess conditional charge after the second two-arm splitter of the flow of the charge is not fed to the inlet of the pelletizing drum, but to the input of the first two-arm splitter of the flow of the charge, which, by a signal from the sensor, setting unit and controller, stabilizes the particle size distribution of the charge entering the sintering machine. regulating the charge level in the sintering machine bunker. A device for adjusting the charge level in the sintering machine's hopper includes a hopper 1 with a feeder 2 and a drive 3 connected to the output of the load regulator 4, a weight gauge 5 with a weight sensor 6, a pelletizing drum 7, at the output of which is in front of a two-arm distributor 8 of the charge flow (for example, bo9 14 Ronka with a gate) is located the first two-arm flow distributor 9, made in the form of nozzles 10, which are located across the entire width of the charge stream from the side of the loading hopper of the charge part into the second divider 8 flow and connect Data through the air flow control unit 11 with the compressed air pipeline 12, one sleeve of the first distributor 9 of the flow of the charge, the particle size of which is controlled by the sensor 13 of the particle size distribution, is located above the second distributor 8 of the charge flow, and the other - above the first circulation conveyor 1, the end of which located above the entrance of the refractory drum 7, the output of the sensor 13 and the setting device 15 of the particle size distribution of the charge through the controller 16. The granulometric composition of the charge is connected to the input of the block 11 reg To control air flow through the nozzles 10, one sleeve of the second distributor 8 of the charge flow is located above the Shuttle feeder 17 of the bunker 18 of the sintering machine, and the other above the second circulation conveyor 19 having a weighing device 20 with a sensor 21 and a flow adjuster 22, the hopper 18 is equipped with a level sensor 23 the output of which, together with the output of the setpoint adjuster 2k, is connected to the input of the level controller 25, and together with the output of the weight sensor 6 of the weight measuring device 5 is connected to the input of the load controller k, the output of the level regulator 25 through the executive The second mechanism 26 is connected to the regulator of the second distributor, 8 of the charge flow, the output of the sensor 21 of the weight gauge 20, together with the output of the setpoint generator 22, is connected to the second input of the load regulator. The device works as follows. The charge from the hopper 1 is fed by a feeder 2 into a pelletizing drum. The performance of the feeder 2 is monitored by a weight meter. The mixture after the pelletizing drum 7 enters the first two-arm distributor 9 of the charge flow in which the charge is divided into two parts by a stream of air of the nozzles 10. One part of the charge, conditional after the first distributor 9, the granulometric composition of which is controlled by the sensor 13, goes through the second distributor 8 of the charge flow to the shuttle feeder T of the bunker 18 of the sintering machine, and the other part of the charge that is not conditional .. after the second distributor 9 of the charge flow enters to the first circulation conveyor I, which is separated from the (conventional) part of the charge, returns to the inlet of the pelletizing drum 7- The regulator 17 of the granulometric composition of the charge according to the signals of the sensor 13 and the settings With a particle size distribution 15, the air flow rate controls the air flow through the nozzles 10 of the first distribution body 9 of the charge stream in such a way that the particle size distribution of the charge entering the second two-arm distributor 8 of the charge flow is constant and is equal to the specified. The load controller k on the signals of the weight sensor 6 of the weight gauge 5 through the drive 3 stabilizes the performance of the feeder 2. The conditioning part of the charge after the first two-arm flow distributor 9 is fed to the second two-arm charge flow distributor 8, which, depending on the degree of filling of the hopper 18, also section em blend into two parts. The first part of the charge through the shuttle feeder 17 enters the bunker 18, and the other - to the second circulation conveyor 19. If the level of the charge in the bunker 18 has changed (for example, increased), then the difference signal of the sensor 23, setpoint 2k and reverse sensor 27 The coupling is fed to the input of the level controller 25, which through the actuator 26 divides the charge so that the level of the charge in the bunker 18 becomes equal to the preset. At the same time, the signals of the sensor 23 and the setting device 2 are fed to one input of the load controller k, which changes (decreases) the performance of the feeder

2. The surplus of the conditional charge after the second two-arm distributor 8 of the charge flow through the second circulation conveyor 19 enters again into the first two-arm divider of the charge flow. When deviating (for example, decreasing) the flow of the excess conditional charge on the second E 4 V circulation conveyor from a given load regulator changes (increases) the capacity of the feeder 2 of the bunker 1 so that the flow of the excess conditioning flow in the second circulation conveyor fixed and equal to the set (target value 22). Returning the excess conditional part of the charge after the second two-arm charge distribution distributor by means of the second circulation conveyor is not sent to the pelletizing drum, but to the first two-arm charge distribution distributor, stabilizes the specified granulometric composition of the charge, stabilizing the particle size distribution of the charge, improves the quality of the mixture, resulting in a mixture of the charge, thus stabilizing the particle size distribution of the charge. higher quality, which increases the productivity of the sinter machine by 0.5-1.01 and improves the quality of the sinter. The economic effect from the use of the proposed technical solution is 50.0 thousand rubles. in year. The invention The device for adjusting the level of the charge in the bunker sinter machine according to ed. St. Vf, o t; Due to the fact that, in order to improve the quality of the charge entering the sintering machine, due to the stabilization of its particle size distribution, a second circulation conveyor with a weight meter is additionally introduced into the device, the start of the second circulation conveyor is located under the second sleeve of the second two-position splitter of the charge flow, the output of the weight sensor of the weight meter, together with the output of the flow master, is connected to the second input of the load regulator, and the beginning of the first circulation a conveyor disposed beneath the second sleeve of the first two-hrukavnogo flow divider shihty.i Information sources. taken into account during the examination 1. USSR author's certificate W, cl. С 22 В 1/16, 1979т J hL./J h g