阅读说明：本技术 高炉喷枪置换机 (Blast furnace spray gun replacement machine ) 是由 宗品禾 宗宁枫 于 2020-06-30 设计创作，主要内容包括：本发明涉及一种高炉喷枪置换机,采用移动式工业机械手作业,代替人工置换,属于冶金高炉工艺技术领域。高炉是大生产作业,如果在生产中喷枪坏了,不能及时换枪,就使喷煤粉助燃不能正常作业,从而使炉内温度降低,出铁量减少,生产效率下降,使每天的生产成本增加300-500万元。由于高炉正常休风要3-6个月,因此,其损失很大。本发明通过结构的合理设计解决了上述问题,高炉喷枪在带风的情况下置换对高炉大生产作业产生的效益是巨大的。它解决了目前高炉喷枪带风置换的困难,其技术工艺达到世界先进水平。(The invention relates to a blast furnace spray gun replacement machine, which adopts movable industrial manipulator operation to replace manual replacement and belongs to the technical field of metallurgical blast furnace processes. The blast furnace is a large-scale production operation, if the spray gun is broken in production and the spray gun cannot be changed in time, the pulverized coal injection combustion-supporting cannot be normally operated, so that the temperature in the furnace is reduced, the iron yield is reduced, the production efficiency is reduced, and the production cost per day is increased by 300 plus 500 ten thousand yuan. Because the normal damping down of the blast furnace takes 3-6 months, the loss is large. The invention solves the problems through the reasonable design of the structure, and the replacement of the blast furnace spray gun under the condition of wind has huge benefits on the large-scale production operation of the blast furnace. The blast furnace spray gun solves the problem of air replacement of the existing blast furnace spray gun, and the technical process of the blast furnace spray gun reaches the advanced level in the world.)

1. A blast furnace spray gun displacer, which is characterized in that: the mechanical arm spray gun replacement mechanism system comprises a signal control system, a power mechanism system, a chassis moving and rotating mechanism system, a mechanical arm spray gun replacement mechanism system and a gun sleeve sealing mechanism system;

the signal control system is composed of a remote control operation box, an electric control cabinet and an operation table, all the components are connected through signal lines, and the system sends control signals to various motors, various oil cylinders and various ball valves to realize respective functions and can also send instructions through manual control;

the power mechanism system consists of a motor, an engine, a gas source and an oil pressure control station, wherein the motor or the engine provides power to enable an oil pump in the oil pressure control station to output high-pressure oil and enable the gas source to output normal-temperature high-pressure sealing gas;

the chassis moving and rotating mechanism system consists of a walking chassis and a rotating chassis, and under the action of high-pressure oil, a chassis moving motor is rotated through an instruction of a signal control system to drive a chassis crawler belt or four wheels to move and rotate so as to realize chassis walking;

the manipulator spray gun replacing mechanism system consists of an up-down adjusting oil cylinder, a front support, a rear support, a gun pulling track, a gripper moving oil cylinder, a left-right adjusting oil cylinder, a left-right swinging rotating shaft, a contraction piston, a pulley, a clamping oil cylinder, a hydraulic converter, a motor, a rotary motor reduction box and a hydraulic clamping gripper;

the gun sleeve sealing mechanism system comprises a sealing cover, a high-temperature-resistant sealing ring, a sealing cavity, a sealed gas high-temperature-resistant ball valve and a high-temperature-resistant ball valve, wherein the sealing cover and the sealing cavity are in threaded connection, the two ball valves and the sealing cavity are in flange or threaded connection, and the ball valves can be manually or manually and electrically controlled;

the high-pressure oil is input into the up-down adjusting oil cylinder under the action of a control signal, the gun drawing track moves up and down under the action of the front-back up-down adjusting oil cylinder, the high-pressure oil enters the gripper moving oil cylinder, the oil cylinder drives the pulley to enable the oil cylinder to clamp the gripper to move back and forth on the gun drawing track, the high-pressure oil enters the left-right adjusting oil cylinder to enable the front support and the rear support to move left and right as required, and therefore the hydraulic clamping gripper can move up and down, back and left and right on the gun drawing track in a three-dimensional;

the high-pressure oil enters the clamping oil cylinder under the action of a control signal, the hydraulic clamping gripper generates gripping force under the action of a hydraulic converter, and a hydraulic motor (air pressure or electric power) drives the hydraulic clamping gripper to rotate through a rotary motor reduction box under the action of oil pressure; high-pressure oil enters a chassis rotating motor to drive a gun pulling track to rotate under the action of a control signal, so that a hydraulic clamping gripper of the gun pulling track can rotate in all directions to achieve the function of a manipulator;

the engine (motor) drives the compressor to generate a high-pressure sealing gas source, the high-pressure gas source enters the gun sleeve through the pipeline, and the gun sleeve consists of a sealing cover, a high-temperature-resistant sealing ring, a sealing cavity, a sealing gas high-temperature-resistant ball valve and a high-temperature-resistant ball valve;

when the spray gun is replaced, under the action of a control signal, the center of the hydraulic clamping hand is aligned with the center of the sealing cover, the sealing cover is grasped, the sealing cover is rotated for a plurality of circles, the sealing cover is appropriately loosened, the sealing gas high-temperature-resistant ball valve is opened, high-pressure sealing gas enters the sealing cavity, the gas in the furnace cannot leak because the pressure of the sealing gas is higher than the pressure P in the furnace and is greater than P, the hydraulic clamping hand grasps the spray gun, the hand moves the oil cylinder backwards, the spray gun is pulled out of the high-temperature-resistant ball valve, when the spray gun head reaches the sealing cavity, the high-temperature-resistant ball valve is closed, the high-pressure gas in the furnace cannot leak, the spray gun; closing a new spray gun ball valve, inserting a clamping oil cylinder, clamping a spray gun by a hydraulic clamping gripper, inserting a spray gun head into a sealing cover to enter a sealing cavity in the process of forward movement of the gripper oil cylinder, opening a sealed gas high-temperature-resistant ball valve, allowing high-pressure sealed gas to enter the cavity, opening the high-temperature-resistant ball valve, moving the oil cylinder forward by the gripper to enable the spray gun head to reach a specified position, loosening the spray gun by the hydraulic clamping gripper, forward moving to grasp the sealing cover, rotating for several circles, tightly squeezing a high-temperature-resistant sealing ring, closing the sealed gas high-temperature-resistant ball valve, and completing a.

2. The blast furnace lance displacer according to claim 1, wherein: the spray gun sleeve consists of a sealing cover, a high-temperature-resistant sealing ring, a sealing cavity, a sealed gas high-temperature-resistant ball valve and a high-temperature-resistant ball valve, wherein the sealing cover is in threaded connection with the sealing cavity; the method comprises the following steps of installing a new gun, closing a spray gun ball valve at one end of the new spray gun, inserting a gun head into a clamping oil cylinder, grabbing the spray gun by a hydraulic clamping gripper, inserting the spray gun head into a sealing cover of a gun sleeve, opening a sealed gas high-temperature resistant ball valve when the spray gun head enters a high-temperature resistant sealing ring and enters a sealing cavity, allowing high-pressure normal-temperature gas to enter a cavity, opening the high-temperature resistant ball valve, continuously inserting the spray gun into the gun sleeve, penetrating the high-temperature resistant ball valve to reach a specified position, and at the moment, enabling gas in the furnace to be jacked by the sealed gas in the sealing cavity, wherein P is more than P, Q is more than Q, and the gun sleeve.

3. The blast furnace lance displacer according to claim 1, wherein: the manipulator spray gun replacing mechanism system consists of a clamping oil cylinder, a hydraulic converter, a motor (which can be electrically, pneumatically or hydraulically driven) rotating motor reduction box and a hydraulic clamping gripper, wherein high-pressure oil is input into the clamping oil cylinder, the hydraulic converter is pulled by the oil cylinder, and the hydraulic converter converts axial tension of the oil cylinder into radial force of the hydraulic clamping gripper so that the gripper can grip a spray gun in 2-24 radial directions;

the motor rotates under the action of high-pressure oil (or electric and pneumatic), the reduction gearbox of the motor can rotate through rotation, the reduction gearbox drives the hydraulic clamping gripper to rotate, and the rotation speed can be adjusted by adjusting hydraulic flow (or current intensity and air pressure flow).

4. The blast furnace lance displacer according to claim 1, wherein: the three-dimensional movement of the manipulator spray gun replacement mechanism system consists of a front and back up-down adjusting oil cylinder, a front and back support, a gun drawing track, a left and right swinging rotating shaft, a contraction piston, a left and right adjusting oil cylinder, a gripper moving oil cylinder and a pulley.

5. The blast furnace lance displacer according to claim 1, wherein: the chassis of chassis moving mechanism system rotates motor (pneumatic type, electronic) under the effect of oil pressure, and the gear of chassis rotation motor drives the circular gear on the chassis, makes the platform face on chassis rotate and drives whole manipulator and rotate, like this, can realize in the horizontal operation of chassis direction of motion, also can realize changing the rifle operation in the position that blast furnace platform taphole road area is narrow.

6. The blast furnace lance displacer according to claim 1, wherein: the movable chassis can adopt a four-wheel chassis to drive the spray gun replacement device, and a motor (or electric and pneumatic) drives the four wheels to rotate so as to enable the four wheels to move on the blast furnace tuyere platform.

7. The blast furnace lance displacer according to claims 1-6, characterized in that: the hydraulic reversing valve and each ball valve can be controlled manually or electrically, and under the action of the remote control operation box, the hydraulic reversing valve and each ball valve are combined with the electric control cabinet, the operation table and the oil pressure control station to realize remote mechanical operation and realize remote mechanical arm spray gun changing operation.

Technical Field

The invention relates to a blast furnace spray gun replacement machine, which adopts movable industrial manipulator operation to replace manual replacement and belongs to the technical field of metallurgical blast furnace processes.

Background

According to the knowledge of the applicant, at present, the blast furnace spray gun is burnt out in normal production and cannot be replaced with air, because the pressure in the blast furnace is high (0.4 MPa) and the temperature is high (1500-2000 ℃) when the blast furnace spray gun is produced with air, and if the spray gun is pulled out of the blast furnace, on one hand, gas in the high-temperature and high-pressure blast furnace can be sprayed out of a gun barrel, so that the blast furnace spray gun is dangerous; on the other hand, the spray gun is heavy, the gun head needs to be pulled out from the gun sleeve with great force after being burnt out, and the force of people is insufficient. Therefore, the replacement can be carried out only when the production is stopped, and the consequence of reducing the production efficiency is brought to the metallurgical blast furnace production.

Disclosure of Invention

The invention aims to provide a movable industrial manipulator (device) and a high-temperature and high-pressure resistant sealing spray gun sleeve aiming at the defects in the prior art, so that high-temperature and high-pressure gas in a furnace cannot leak out of the spray gun sleeve in the process of replacing a spray gun, and the aim of safely replacing the spray gun is fulfilled.

In order to achieve the above purpose, the technical scheme of the invention is as follows: a blast furnace spray gun replacement machine comprises a signal control system consisting of a remote control operation box, an electric control cabinet and an operation platform, a power mechanism system consisting of a motor, an engine and an oil pressure control station, a chassis system consisting of a walking chassis and a rotating chassis, and a manipulator spray gun replacement mechanism system consisting of an upper and lower adjusting oil cylinder front and rear support, a gun pulling track, a gripper moving oil cylinder, a left and right adjusting oil cylinder, a left and right swinging rotating shaft, a retracting piston, a pulley, a clamping oil cylinder, a hydraulic converter, a motor, a rotating motor reduction box and a hydraulic clamping gripper; the gun sleeve sealing mechanism system comprises a sealing cover, a high-temperature-resistant sealing ring, a sealing cavity, a sealing gas high-temperature-resistant ball valve and a high-temperature-resistant ball valve, wherein the chassis is provided with a moving motor and a chassis rotating motor (or not provided with the rotating motor) which can move or rotate, the chassis is provided with a front and a rear upright post brackets, an adjusting oil cylinder which moves up and down is arranged in each bracket, the brackets are provided with tracks which enable a hydraulic clamping hand to move back and forth, a hand moving oil cylinder is arranged below the tracks, the hand is matched and sleeved with the clamping oil cylinder, the rotating motor, a hydraulic converter, a rotating motor reduction box and the tracks which move back and forth, the hand clamps the spray gun to rotate for 360 degrees under the action of the hand moving oil cylinder, and the spray gun is moved back and forth under the action of the hand moving oil cylinder to achieve the purpose of replacing the spray gun from the, the high-temperature sealing ring, the high-pressure high-temperature sealing cavity and the sealing cover are used for ensuring that high-temperature high-pressure gas in the furnace does not leak in the replacement process of the spray gun, so that the aim of safely replacing the spray gun is fulfilled.

The invention further perfects the scheme, the chassis is provided with an oil pressure control station, an electric cabinet, an operation table, an engine and a sealed air source for providing power for each oil cylinder and each motor, the chassis is provided with a mobile motor and a rotary motor, the electric cabinet, the operation table and a remote control operation box can enable the blast furnace spray gun replacer to realize remote control, the hydraulic control station and the gun sleeve ball valve on the replacer are manually and electrically controlled, and the operation table realizes manual control (also can realize electric remote control) of the actions of each ball valve, each oil cylinder and each motor. The engine can realize the normal work of the displacer under the condition of no power supply on site. The sealed air source is provided with an air source under the condition that no normal-temperature high-pressure air source exists on site, so that the normal work of a gun sleeve of the spray gun is ensured, and the safe gun replacement is realized.

The invention further perfects the scheme: the front support, the rear support, the left-right adjusting oil cylinder and the up-down adjusting oil cylinder can enable the central line of the track of the gun pulling track to move horizontally and swing up and down, left and right. Under the action of the gripper moving oil cylinder, the hydraulic clamping gripper realizes spatial three-dimensional motion; under the action of the motor and the rotary motor reduction box, the hydraulic clamping gripper grips the spray gun tightly, and the function of a manipulator for X, Y, Z three-dimensional movement and X-direction rotation is realized. After the rotary chassis rotates 90 degrees, the blast furnace spray gun replacement machine can realize gun replacement operation in the three-dimensional Z direction, and the manipulator can move in the space X, Y, Z in three dimensions. And the full-function manipulator rotates in X, Z two-dimensional direction to realize the all-round gun-changing operation of the blast furnace tuyere platform.

The invention further perfects the scheme: when the gun is replaced, the hydraulic clamping gripper grasps the sealing cover, the motor rotates to drive the gripper to rotate, the sealing cover is loosened (3-5 circles are loosened), the gripper grabs the spray gun, the gripper moves the oil cylinder to retreat, the gripper grabs the spray gun to start drawing the gun, the sealed gas high-temperature ball valve is opened, when the position of the spray gun head reaches the sealed cavity, the high-temperature ball valve is closed, the sealed gas at normal temperature and high pressure enters the sealed cavity through the sealed gas pipeline, a high-pressure cavity is formed due to the fact that the pressure of the sealed gas is higher than the pressure in the furnace, the high-temperature and high-pressure gas in the furnace cannot come out through a wind blowing method, at. And the gripper retreats, the spray gun is pulled out, and the gun pulling process is completed. When the gun is assembled and robbed, the tongs grasp the spray gun, the straight pipe sub-spray gun directly injects the high-temperature resistant sealing ring, the elbow spray gun firstly sleeves the sealing cover and the sealing ring on the spray gun, the tongs grasp the spray gun and inject the elbow into the sealing cavity, the tongs lightly push the sealing cover, the sealing ring is inserted into the groove of the sealing cavity, the tongs rotate, the sealing cover is in threaded connection with the sealing cavity, the sealed gas high-temperature resistant ball valve is opened, the high-temperature high-pressure gas in the furnace is supported by the high-pressure area in the sealing cavity, the tongs insert the spray gun to a specified depth.

The blast furnace is a large-scale production operation, if the spray gun is broken in production and the spray gun cannot be changed in time, the pulverized coal injection combustion-supporting cannot be normally operated, so that the temperature in the furnace is reduced, the iron yield is reduced, the production efficiency is reduced, and the production cost per day is increased by 300 plus 500 ten thousand yuan. Because the normal damping down of the blast furnace takes 3-6 months, the loss is large. The invention has the beneficial effects that: the invention solves the problems, and the replacement of the blast furnace spray gun under the condition of wind brings huge benefits to the large-scale production operation of the blast furnace. The blast furnace spray gun solves the problem of air replacement of the existing blast furnace spray gun, and the technical process of the blast furnace spray gun reaches the advanced level in the world.

Drawings

FIG. 1 is a general technical diagram of a blast furnace lance replacer and a lance cover.

FIG. 2 is a general diagram of a blast furnace lance displacer process.

FIG. 3 is a general technical diagram of a mechanical gripper of a blast furnace lance displacer.

FIG. 4 is a general diagram of the technology of a blast furnace lance replacer with four-wheel movable chassis and a lance cover.

In the figure, the reference number is 1, a rear bracket up-and-down adjusting oil cylinder, 2, a crawler belt (or four-wheel) chassis, 3, an oil pressure control station, 4, an electric control cabinet, 5, an operation platform, 6, a gun pulling track, 7, a rear bracket, 8, a left-and-right adjusting oil cylinder, 9, a remote control operation box, 10, a left-and-right swinging rotating shaft, 11, a front bracket, 12a motor, 12b, an air source, 14, a sliding rail, 15, a front bracket up-and-down adjusting oil cylinder, 16, a hydraulic converter, 17, a hydraulic clamping gripper, 18, a high-temperature resistant sealing ring, 19a bent pipe spray gun, 19b, a straight pipe spray gun, 20, a high-temperature resistant ball valve, 21, a sealing gas pipeline, 22, a sealing gas high-temperature resistant ball valve, 23a sealing cavity, 23b, a sealing cover, 24, a rotating motor reduction box, 25, a motor, 26 clamping oil cylinder, 27, 30. retracting pistons, 31 chassis rotating motor, 32 chassis moving motor.

Detailed Description