阅读说明：本技术 一种高炉料车在线加油方法及高炉加料系统 (Online refueling method for blast furnace skip car and blast furnace charging system ) 是由 陈生利 刘立广 龚健方 于 2020-08-25 设计创作，主要内容包括：本申请提供一种高炉料车在线加油方法及高炉加料系统,涉及高炉上料技术领域。高炉料车在线加油方法用于使高炉料车在第一工位和第二工位作往复运动时加油,高炉料车到达第一工位后,加油管道与进油管机构对接,开始输油。当高炉料车完成进料后或当轮轴的油压≥10kPa,停止输油,对接机构使加油管道脱离进油管机构。本申请利用高炉料车在加料的时间对高炉料车的轮轴进行加油,实现了高炉料车在工作状态的在线加油,避免了高炉长期无休风计划无法对高炉料车加油带来的弊端,巩固了高炉高产。且此在线加油方法可以根据轮轴的情况随时对轮轴进行加油,有利于轮轴及高炉料车的维护保养,避免了高炉料车的轮轴在高速运行磨损加剧后引发的系列事故。(The application provides a blast furnace skip car online refueling method and a blast furnace charging system, and relates to the technical field of blast furnace charging. The online refueling method for the blast furnace skip car is used for refueling the blast furnace skip car when the blast furnace skip car reciprocates between a first station and a second station, and after the blast furnace skip car reaches the first station, a refueling pipeline is in butt joint with a fuel inlet pipe mechanism to start fuel delivery. And when the blast furnace skip finishes feeding or the oil pressure of the wheel shaft is more than or equal to 10kPa, stopping oil delivery, and separating the oil filling pipeline from the oil inlet pipe mechanism by the butt joint mechanism. This application utilizes the blast furnace skip to refuel the shaft of blast furnace skip at reinforced time, has realized that the blast furnace skip refuels on operating condition's online, has avoided the blast furnace to have had the long-term drawback that the plan of damping down can't refuel the blast furnace skip and bring, has consolidated the high yield of blast furnace. The online refueling method can refuel the axle at any time according to the condition of the axle, is beneficial to the maintenance of the axle and the blast furnace skip car, and avoids series accidents caused by the accelerated abrasion of the axle of the blast furnace skip car in high-speed operation.)

1. A blast furnace skip online oiling method is used for oiling a blast furnace skip when the blast furnace skip reciprocates between a first station and a second station, wherein the blast furnace skip feeds materials at the first station and discharges materials at the second station, and the blast furnace skip online oiling method is characterized by comprising the following steps of:

an oil inlet pipe mechanism is arranged at an oil inlet hole of at least one wheel shaft at the bottom of the blast furnace skip car, a butt joint mechanism is arranged at the first station, an oil filling pipeline is fixed on the butt joint mechanism, and the oil filling pipeline can be in butt joint with and separated from the oil inlet pipe mechanism through the butt joint mechanism;

after the blast furnace skip car reaches the first station, the butt joint mechanism enables the oil feeding pipeline to be in butt joint with the oil inlet pipe mechanism, and oil transportation is started;

and when the feeding of the blast furnace skip car is finished or the oil pressure of the wheel shaft is more than or equal to 10kPa, stopping oil transportation, and separating the oil feeding pipeline from the oil feeding pipe mechanism by the butt joint mechanism.

2. The online refueling method for the blast furnace skip car according to claim 1, wherein the oil inlet pipe mechanism comprises an oil cup and a frame, the oil cup is provided with a first oil inlet and a first oil outlet, one end of the frame is connected to a gear coupler at the bottom of the blast furnace skip car, the other end of the frame is connected to the oil cup and enables the first oil outlet to be in butt joint with the oil inlet hole, and the oil feeding pipeline can be in butt joint with and separated from the first oil inlet through the butt joint mechanism;

optionally, the oil cup comprises a straight-through pressure-filling oil cup.

3. The on-line refueling method for the blast furnace skip car according to claim 2, wherein the oil inlet pipe mechanism further comprises a pipe joint, the pipe joint is provided with a second oil inlet and a second oil outlet, the pipe joint is in sealing connection with the oil cup so as to enable the first oil inlet to be in butt joint with the second oil outlet, and the oil feeding pipeline can be in butt joint with and separated from the second oil inlet through the butt joint mechanism;

optionally, the pipe joint comprises a straight-through pipe joint.

4. The on-line refueling method for the blast furnace skip car according to claim 1, wherein the docking mechanism comprises a hydraulic cylinder and a bracket, the hydraulic cylinder is provided with a cylinder body and a piston rod, the bracket is connected to the piston rod, and the refueling pipeline is mounted on the bracket.

5. The online refueling method for the blast furnace skip car according to any one of claims 1 to 4, wherein an O-shaped rubber ring is arranged at the interface end of the refueling pipeline, and after the refueling pipeline is butted with the oil inlet pipe mechanism, the interface end of the refueling pipeline is hermetically connected with the oil inlet pipe mechanism through the O-shaped rubber ring.

6. The on-line refueling method for the blast furnace skip car as claimed in any one of claims 1 to 4, wherein the docking mechanism docks the refueling pipeline with the oil inlet pipe mechanism after the blast furnace skip car arrives at the first station, and oil transportation is started after 3-5 seconds.

7. The on-line refueling method for the blast furnace skip car according to any one of claims 1 to 4, wherein after the material bin of the first station finishes discharging a preset amount of material, the oil transportation is stopped for 3 to 5 seconds, and the oil feeding pipeline is separated from the oil feeding pipeline by the abutting mechanism.

8. The online refueling method for the blast furnace skip car as claimed in any one of claims 1 to 4, wherein before refueling, after the blast furnace skip car reaches the first station, in the feeding process of the blast furnace skip car, a hole cover of the oil inlet of the axle to be refueled is opened, and the oil inlet pipe mechanism is installed on the oil inlet.

9. The utility model provides a blast furnace charging system, blast furnace charging system includes blast furnace skip and track, the track has first station and second station, the blast furnace skip is in first station with reciprocating motion is made to the second station, just the blast furnace skip is in the feeding of first station the second station is unloaded, its characterized in that, at least one shaft of blast furnace skip bottom is provided with into oil pipe mechanism, first station is provided with docking mechanism, adds oil pipe and says and be fixed in on the docking mechanism, add oil pipe way pass through docking mechanism can with advance oil pipe mechanism butt joint and separation.

10. The blast furnace charging system according to claim 9, further comprising a controller, a first receiver for monitoring whether the blast furnace skip car reaches a preset position for charging, a second receiver for monitoring whether the blast furnace skip car is full, wherein the first receiver, the second receiver and the docking mechanism are respectively connected to the controller;

when the controller receives a signal sent by the first receiver that the blast furnace skip car reaches a preset charging position, the controller controls the butt joint mechanism to butt joint the oil charging pipeline and the oil inlet pipe mechanism;

and after the controller receives a full-material signal of the blast furnace skip sent by the second receiver, the controller controls the butt joint mechanism to separate the oil feeding pipeline from the oil inlet pipe mechanism.

Technical Field

The application relates to the technical field of blast furnace feeding, in particular to a blast furnace skip online refueling method and a blast furnace charging system.

Background

At present, most of the furnace volume is 1000m³A blast furnace with different grades is basically fed by a double-blast-furnace skip car. The single blast furnace skip car comprises 1 hopper and 4 wheels, the hopper is used for loading furnace burden, and the main hoisting motor rotates to drive the steel wire rope to run, so that the wheels of the blast furnace skip car are pulled to run. In the charging process, charging materials are loaded into the car hopper according to a set weight, the wheels are pulled by the steel wire ropes to run on the rails, and the charging materials are conveyed to the blast furnace top receiving hopper, so that the purpose of charging the blast furnace is achieved. Under normal conditions, the receiving and staying time of the blast furnace skip car under the blast furnace groove is about 1 minute, and the time for the blast furnace skip car to pull the full charge and load the top of the furnace is about 20 seconds.

The wheels of the blast furnace skip car belong to rotating equipment, and the rotating shafts of the wheels need to be lubricated by oil regularly. When the blast furnace is normally produced, the blast furnace skip car is always on the inclined bridge track after being installed. The oiling needs to stop the blast furnace skip car, open the wheel axle cover, stretch the oiling pipe into the gear of the rotating shaft, and start the oiling pump to oil the rotating shaft. To finish the oiling of 8 axles of two blast furnace skip cars, 120 minutes is generally needed, and 15 minutes is needed for oiling each wheel once. Therefore, the charging of the blast furnace material wheel axle is carried out under the condition that the blast furnace material car is stopped after the blast furnace is stopped, or the blast furnace is greatly reduced in air.

Disclosure of Invention

An object of the embodiment of the application is to provide a blast furnace skip online refueling method and a blast furnace charging system, which can solve the technical problems that the existing blast furnace skip is stopped to refuel to cause production energy loss and a shaft of the blast furnace skip is easy to wear and break.

In a first aspect, an embodiment of the present application provides an online refueling method for a blast furnace skip car, which is used for refueling the blast furnace skip car when the blast furnace skip car reciprocates between a first station and a second station, wherein the blast furnace skip car feeds at the first station and discharges at the second station, and the online refueling method includes:

an oil inlet pipe mechanism is arranged at an oil inlet hole of at least one wheel shaft at the bottom of the blast furnace skip car, a butt joint mechanism is arranged at a first station, and an oil filling pipeline is fixed on the butt joint mechanism so that the oil filling pipeline can be in butt joint with and separated from the oil inlet pipe mechanism through the butt joint mechanism.

After the blast furnace skip car reaches the first station, the butt joint mechanism enables the oil feeding pipeline to be in butt joint with the oil inlet pipe mechanism, and oil transportation is started.

And when the blast furnace skip finishes feeding or the oil pressure of the wheel shaft is more than or equal to 10kPa, stopping oil delivery, and separating the oil filling pipeline from the oil inlet pipe mechanism by the butt joint mechanism.

In the realization process, the shaft of the blast furnace skip car is refueled in the charging time by the blast furnace skip car, the online refueling of the blast furnace skip car in the working state is realized, the defect that the blast furnace cannot refuel the blast furnace skip car due to long-term no damping down plan is avoided, and the high yield of the blast furnace is consolidated. Meanwhile, the online refueling method for the blast furnace skip car does not need slow wind coordination, and furnace condition fluctuation caused by slow wind of the blast furnace is avoided. The online refueling method for the blast furnace skip car can be used for refueling the wheel shaft at any time according to the condition of the wheel shaft of the blast furnace skip car, is favorable for maintaining the wheel shaft and the blast furnace skip car, and avoids series accidents caused after the wheel shaft of the blast furnace skip car is abraded and aggravated in high-speed operation.

The oil feeding pipeline and the oil feeding pipe mechanism can be optionally butted and separated through the butting mechanism, so that the shaft of the blast furnace skip car can be oiled in the feeding time, and the operation is very convenient.

In a possible embodiment, the oil inlet pipe mechanism comprises an oil cup and a frame, the oil cup is provided with a first oil inlet and a first oil outlet, one end of the frame is connected to the gear coupler at the bottom of the blast furnace skip car, the other end of the frame is connected to the oil cup and enables the first oil outlet to be in butt joint with the oil inlet hole, and the oil filling pipe can be in butt joint with and separated from the first oil inlet through the butt joint mechanism.

Optionally, the oil cup comprises a straight-through pressure-filling oil cup.

In the implementation process, the oil cup is arranged at the oil inlet hole, so that oil can be conveniently filled into the oil inlet hole. The frame is used for making the oil cup stably install in the inlet port.

In a possible embodiment, the oil inlet pipe mechanism further comprises a pipe joint having a second oil inlet and a second oil outlet, the pipe joint is in sealing connection with the oil cup to enable the first oil inlet and the second oil outlet to be butted, and the oil filling pipe can be butted and separated with and from the second oil inlet through the butting mechanism.

Optionally, the pipe joint comprises a straight-through pipe joint.

In the implementation process, the first oil inlet of the oil cup is provided with pipe joints of different models, and oil filling pipes of different models can be selected.

In one possible embodiment, the docking mechanism includes a hydraulic cylinder having a cylinder body and a piston rod, and a bracket connected to the piston rod, the filler conduit being mounted to the bracket.

In the implementation process, the hydraulic cylinder can control the support to advance or retreat in the preset direction through the movement of the piston rod, so that the oil filling pipeline is driven to advance or retreat in the preset direction, and the oil filling pipeline can be in butt joint with and separated from the oil inlet pipe mechanism.

In a possible embodiment, an O-shaped rubber ring is arranged at the interface end of the oil feeding pipeline, and after the oil feeding pipeline is in butt joint with the oil inlet pipe mechanism, the interface end of the oil feeding pipeline is in sealing connection with the oil inlet pipe mechanism through the O-shaped rubber ring.

In the implementation process, when the oil feeding pipeline is in butt joint with the oil inlet pipe mechanism, the interface end of the oil feeding pipeline applies pressure to the interface end of the oil inlet pipe mechanism through the butt joint mechanism, and the O-shaped rubber ring at the interface end of the oil feeding pipeline can enable the interface end of the oil feeding pipeline and the interface end of the oil inlet pipe mechanism to be in sealing connection after being extruded, so that the friction damage of the interface ends of the oil feeding pipeline and the oil inlet pipe mechanism is reduced.

In a possible embodiment, after the blast furnace skip car reaches the first station, the butt joint mechanism enables the oil feeding pipeline to be in butt joint with the oil feeding pipe mechanism, and oil transportation is started after 3-5 seconds.

In the implementation process, the method for delaying oil transportation is adopted, namely, after the oil filling pipeline is in butt joint with the oil inlet pipe mechanism, oil transportation is started.

In a possible implementation scheme, after the material bin of the first station finishes discharging by a preset amount, oil transportation is stopped for 3-5 s, and the oil filling pipeline is separated from the oil inlet pipe mechanism by the butt joint mechanism.

In the implementation process, the method for stopping oil transportation in advance is adopted, namely, the oil transportation is stopped firstly, after all the oil in the oil filling pipeline enters the wheel shaft through the oil inlet pipe mechanism, the oil filling pipeline is separated from the oil inlet pipe mechanism.

In a possible embodiment, before refueling, after the blast furnace skip arrives at the first station, during feeding of the blast furnace skip, the hole cover of the oil inlet of the axle to be refueled is opened, and the oil inlet pipe mechanism is installed at the oil inlet.

In the implementation process, when the blast furnace skip car needs to be refueled, the oil inlet pipe mechanism is installed at the oil inlet of the wheel shaft to be refueled in the charging time of the blast furnace skip car, and the oil inlet pipe mechanism is taken down from the oil inlet when the blast furnace skip car does not need to be refueled at ordinary times, so that the quality of the blast furnace skip car is reduced.

In a second aspect, the embodiment of the application provides a blast furnace charging system, the blast furnace charging system includes a blast furnace skip car and a track, the track has a first station and a second station, the blast furnace skip car makes reciprocating motion at the first station and the second station, and the blast furnace skip car feeds at the first station, unload at the second station, at least one wheel axle of blast furnace skip car bottom is provided with into oil pipe mechanism, the first station is provided with docking mechanism, it is fixed in on the docking mechanism to add oil pipe, add oil pipe and pass through docking mechanism can with advance oil pipe mechanism butt joint and separation.

In the realization process, the charging system of the blast furnace can enable the charging car of the blast furnace to realize oil filling in the working state, avoids the defect that the charging car of the blast furnace cannot be filled with oil due to long-term no damping down plan, and consolidates the high yield of the blast furnace. The oil feeding pipeline and the oil feeding pipe mechanism can be optionally butted and separated through the butting mechanism, so that the shaft of the blast furnace skip car can be oiled in the feeding time, and the operation is very convenient.

In a possible embodiment, the blast furnace charging system further comprises a controller, a first receiver for monitoring whether the blast furnace skip car reaches a preset position for charging, and a second receiver for monitoring whether the blast furnace skip car is full, wherein the first receiver, the second receiver and the docking mechanism are respectively connected to the controller.

And when the controller receives a signal sent by the first receiver that the blast furnace skip car reaches the preset charging position, the controller controls the butt joint mechanism to butt joint the oil charging pipeline and the oil inlet pipe mechanism.

And when the controller receives a full-material signal of the blast furnace skip sent by the second receiver, the controller controls the butt joint mechanism to separate the oil feeding pipeline from the oil feeding pipe mechanism.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a charging system of a blast furnace according to an embodiment of the present application;

FIG. 2 is a schematic view of an installation of a feed tube mechanism according to an embodiment of the present application;

FIG. 3 is a side view of a feed tube mechanism of an embodiment of the present application;

FIG. 4 is a schematic view of an installation of the docking mechanism of an embodiment of the present application;

FIG. 5 is a control schematic diagram of a charging system of a blast furnace according to an embodiment of the present application.

Icon: 10-blast furnace skip car; 11-oil inlet hole; 12-a gear coupling; 100-oil inlet pipe mechanism; 110-oil cup; 120-a frame; 130-a pipe joint; 200-a docking mechanism; 211-cylinder block; 212-a piston rod; 220-a bracket; 300-an oil feeding pipeline; 310-O type rubber ring; 20-blast furnace; 21-a second station; 30-a storage bin; 31-a first station; 400-a controller; 410-a first receiver; 420-a second receiver; 430-a third receiver; 500-refueling system.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, a blast furnace 20 is loaded with material from a bunker 30 to the blast furnace 20 by using a blast furnace skip 10, and the loading position of the blast furnace 20 is on the top of the blast furnace 20, and the bunker 30 is on the ground where the blast furnace 20 is placed. Therefore, the blast furnace skip car 10 needs to work against gravity while reciprocating between the silo 30 and the top of the blast furnace 20. Generally, two blast furnace skip cars 10 are prepared for each blast furnace 20, and the two blast furnace skip cars 10 need to be continuously charged and discharged under the working condition of the blast furnace 20, i.e. the blast furnace skip cars 10 can only be rested during the damping-down period of the blast furnace 20.

The application provides an online refueling method for a blast furnace skip car, which is used for refueling the blast furnace skip car 10 when the blast furnace skip car reciprocates between a first station 31 and a second station 21, wherein the blast furnace skip car 10 feeds materials at the first station 31 and discharges materials at the second station 21. Namely, the blast furnace skip car 10 realizes oil filling under the working conditions of feeding and discharging.

Referring to fig. 2 to 3, the axle at the bottom of the blast furnace skip 10 has an oil inlet hole 11, and an oil inlet pipe mechanism 100 is installed at the oil inlet hole 11 of at least one axle, and referring to fig. 4, a docking mechanism 200 is installed at a first station 31, and an oil feeding pipe 300 is fixed to the docking mechanism 200, so that the oil feeding pipe 300 can be docked with and separated from the oil inlet pipe mechanism 100 by the docking mechanism 200.

The oil inlet pipe mechanism 100 includes an oil cup 110 and a frame 120, the oil cup 110 has a first oil inlet and a first oil outlet, one end of the frame 120 is connected to the gear coupler 12 at the bottom of the blast furnace skip 10, the other end of the frame 120 is connected to the oil cup 110 and makes the first oil outlet butt-joint with the oil inlet hole 11, and the oil filling pipe 300 can butt-joint and separate from the first oil inlet through the butt-joint mechanism 200.

An oil cup 110 is installed at the oil inlet hole 11, so that oil can be conveniently filled into the oil inlet hole 11.

Since the oil cup 110 is not fixed at the oil inlet hole 11, the oil cup 110 needs to be fixed at the oil inlet hole 11 through the frame 120. One end of the frame 120 is connected to the gear coupler 12 through a bolt, the other end of the frame 120 is connected to the oil cup 110, and the first oil outlet of the oil cup 110 abuts against the oil inlet hole 11 of the wheel axle, so that the oil cup 110 is hermetically connected with the oil inlet hole 11, and oil leakage due to oil inlet is prevented.

Optionally, the oil cup 110 comprises a straight-through pressure-filled oil cup 110.

In the embodiment shown in fig. 2 to 3, the oil inlet 11 faces downward, one end of the frame 120 has a cavity, the oil cup 110 is mounted at one opening of the cavity, and the oil inlet pipe is mounted at the other opening of the cavity, so that the oil cup 110, the cavity and the oil inlet pipe are formed into an L shape together, the direction and the position for mounting the oil filling pipe 300 can be changed, and the oil filling pipe 300 is placed in a transverse direction to be butted with the oil cup 110.

The oil inlet pipe mechanism 100 further comprises a pipe joint 130, the pipe joint 130 has a second oil inlet and a second oil outlet, the pipe joint 130 is connected with the oil cup 110 in a sealing manner to enable the first oil inlet and the second oil outlet to be butted, and the oil feeding pipeline 300 can be butted and separated with the second oil inlet through the butting mechanism 200.

Different types of pipe joints 130 are arranged at the first oil inlet of the oil cup 110, and different types of oil filling pipes can be selected.

Optionally, the pipe joint 130 comprises a straight-through pipe joint 130.

Generally, the oil inlet pipe mechanism 100 is only installed when the blast furnace skip car 10 needs to be refueled, and is detached at other times, and the time for installing the oil inlet pipe mechanism 100 is about 30 s. The blast furnace skip car 10 needs to overcome gravity to do work in the process of feeding the blast furnace 20, and the installation of the oil inlet pipe mechanism 100 on the blast furnace skip car 10 can increase the mass of the blast furnace skip car 10, thereby increasing the work in the feeding and discharging processes of the blast furnace skip car 10 and increasing the energy consumption.

Also, if multiple axles of the blast furnace skip 10 need to be refueled, multiple axles may be refueled simultaneously, or each axle may be refueled in sequence.

When a plurality of wheel axles are refueled simultaneously, each wheel axle needing refueled needs to be provided with an oil inlet pipe mechanism 100, a plurality of butt joint mechanisms 200 need to be arranged on the first station 31, and the plurality of butt joint mechanisms 200 correspond to the plurality of oil inlet pipe mechanisms 100 one by one respectively;

when sequentially oiling each axle, firstly opening the hole cover of the oil inlet hole 11 of the first axle, installing the oil inlet pipe mechanism 100 on the oil inlet hole 11, then installing the docking mechanism 200 at the corresponding position of the first station 31, after the first axle is filled with oil, detaching the oil inlet pipe mechanism 100 installed on the oil inlet hole 11 of the first axle, and installing the oil inlet pipe mechanism 100 on the oil inlet hole 11 of the second axle, if the docking mechanism 200 can not match the oil inlet pipe 300 with the oil inlet pipe mechanism 100 installed on the oil inlet hole 11 of the second axle, the position of the docking mechanism 200 needs to be adjusted to correspond to the position of the oil inlet pipe mechanism 100 installed on the oil inlet hole 11 of the second axle. The oil feed pipe mechanism 100 is sequentially disassembled and assembled as described above to supply oil to a plurality of wheel axles.

The docking mechanism 200 of the present application may be any structure that enables the docking and separation of the oil feed pipe 300 from the oil feed pipe mechanism 100.

In the embodiment shown in fig. 4, the docking mechanism 200 includes a hydraulic cylinder having a cylinder body 211 and a piston rod 212, and a bracket 220, the bracket 220 being connected to the piston rod 212, and the fuel filler pipe 300 being mounted to the bracket 220. The hydraulic cylinder can control the bracket 220 to advance or retreat in a preset direction through the movement of the piston rod 212, and further drives the oil feeding pipeline 300 to advance or retreat in the preset direction, so that the oil feeding pipeline 300 can be in butt joint with and separated from the oil feeding mechanism 100. In other embodiments of the present application, the docking mechanism 200 may also be a rack and pinion structure, the oil filling pipe 300 is installed on the side wall of the rack, and the pinion is controlled to rotate clockwise and counterclockwise, so that the rack moves forward or backward, and the oil filling pipe 300 can be docked with and undocked from the oil inlet pipe mechanism 100.

Optionally, the nipple end of the filler tube 300 is provided with an O-ring rubber 310.

When the oil filling pipeline 300 is in butt joint with the oil inlet pipe mechanism 100, the interface end of the oil filling pipeline 300 applies pressure to extrude the interface end of the oil inlet pipe mechanism 100 through the butt joint mechanism 200, and the O-shaped rubber ring 310 at the interface end of the oil filling pipeline 300 can enable the interface end of the oil filling pipeline 300 to be in sealing connection with the interface end of the oil inlet pipe mechanism 100 after being extruded, and meanwhile, the friction damage of the interface ends of the oil filling pipeline 300 and the oil inlet pipe mechanism 100 is reduced.

After the blast furnace skip car 10 reaches the first station 31, the blast furnace skip car 10 starts feeding, at the moment, the docking mechanism 200 enables the oil feeding pipeline 300 to be docked with the oil feeding pipe mechanism 100, and oil transportation is started after 3-5 seconds.

After the bin 30 of the first station 31 finishes discharging a preset amount of material, the oil transportation is stopped for 3-5 s, and the docking mechanism 200 separates the oil feeding pipeline 300 from the oil feeding pipe mechanism 100.

After the blast furnace skip car 10 operates to the second station 21 and discharges materials to the blast furnace 20, the blast furnace skip car returns to the first station 31 at the bottom, the blast furnace skip car 10 starts feeding, the docking mechanism 200 docks the oil feeding pipeline 300 with the oil feeding pipe mechanism 100 again, and oil transportation starts after 3-5 s. Repeating the above operations until the oil pressure of the wheel axle is more than or equal to 10kPa, stopping oil transportation, and enabling the oil feeding pipeline 300 to be separated from the oil inlet pipe mechanism 100 by the butting mechanism 200. The axle is filled with oil.

If a plurality of wheel shafts are simultaneously oiled, all the oil inlet pipe mechanisms 100 need to be disassembled at the moment;

if the oil is sequentially filled on each wheel axle, the oil inlet pipe mechanism 100 of the blast furnace skip car 10 is disassembled and is installed on the oil inlet hole 11 of the second wheel axle, and the steps are repeated to sequentially fill the oil on the plurality of wheel axles.

Referring to fig. 1 to 4, the present application further provides a blast furnace charging system, which includes a blast furnace skip 10 and a rail, wherein the rail has a first station 31 and a second station 21, the blast furnace skip 10 reciprocates between the first station 31 and the second station 21, the blast furnace skip 10 is charged at the first station 31 and discharged at the second station 21, an oil inlet pipe mechanism 100 is disposed on at least one wheel axle at the bottom of the blast furnace skip 10, a docking mechanism 200 is disposed at the first station 31, the oil inlet pipe 300 is fixed to the docking mechanism 200, and the oil inlet pipe 300 can be docked with and separated from the oil inlet pipe mechanism 100 through the docking mechanism 200.

Referring to fig. 5, the charging system for blast furnace further includes a controller 400, a first receiver 410 for monitoring whether the blast furnace skip 10 reaches a predetermined position for charging, a second receiver 420 for monitoring whether the blast furnace skip 10 is full, and a third receiver 430 for monitoring oil pressure of each axle, wherein the first receiver 410, the second receiver 420, the third receiver 430, the docking mechanism 200, and the refueling system 500 are respectively connected to the controller 400.

When the controller 400 receives a signal from the first receiver 410 that the blast furnace skip car 10 reaches the preset position for charging, the controller 400 controls the docking mechanism 200 to dock the charging pipe 300 with the oil inlet pipe mechanism 100, and controls the fueling system 500 to start fueling.

When the controller 400 receives the signal of the full charge of the blast furnace skip car 10 from the second receiver 420, the controller 400 controls the docking mechanism 200 to separate the oil filling pipe 300 from the oil filling pipe mechanism 100, and controls the oil filling system 500 to stop filling oil.

When the controller 400 receives a signal that the oil pressure of the axle reaches 10kPa from the third receiver 430, the controller 400 controls the docking mechanism 200 to separate the refueling pipeline 300 from the oil inlet pipe mechanism 100, and controls the refueling system 500 to stop refueling.

The method for charging a blast furnace skip car on line is further described in detail with reference to the following examples.