WO2023185080A1

WO2023185080A1 - Blast furnace body jacking and sliding device, system and method

Info

Publication number: WO2023185080A1
Application number: PCT/CN2022/137382
Authority: WO
Inventors: 万小兵; 鲁少刚; 陈荣林; 刘卫健; 郭小康; 闵良建
Original assignee: 上海宝冶冶金工程有限公司; 上海宝冶集团有限公司
Priority date: 2022-03-28
Filing date: 2022-12-07
Publication date: 2023-10-05
Also published as: CN114772495A

Abstract

Disclosed in the present invention are a blast furnace body jacking and sliding device, system and method. The device comprises a sliding groove, a sliding shoe and a push-pull device; the sliding shoe and the push-pull device are controlled to alternately move in the sliding groove under the action of stretching and retracting of a push-pull device oil cylinder and the action of a counter-force base, thus a furnace body is driven to reach a specified position, and position deviation adjustment is carried out. The device and the method can better serve blast furnace overhaul engineering, rapid jacking and sliding of the blast furnace body in a blast furnace overhaul construction process can be implemented, and the blast furnace body is moved to a designated place; the blast furnace overhaul engineering efficiency is improved, the engineering time is saved, and potential safety hazards in the construction process are reduced. The efficiency and synchronism of blast furnace overhaul jacking and sliding engineering are improved. Moreover, according to the solution, automation of blast furnace overhaul jacking and sliding engineering is achieved, and the solution is safer and more reliable.

Description

A blast furnace body lifting and sliding device, system and method

Technical field

The invention relates to the technical field of metallurgical engineering construction, and specifically to a blast furnace body lifting and sliding device, system and method.

Background technique

At present, there are 23 blast furnaces with an area of more than 4000m ³ in our country. According to calculations based on the furnace age of 15-20 years, about 50% of the blast furnaces with an area of more than 4000m ³ will be overhauled in the next five years. The traditional blast furnace overhaul construction technology is to dismantle and separate parts. Parts installation, dismantling or installation projects amount to tens of thousands of tons.

This method has major shortcomings, mainly including: large amount of online construction work, many operations at heights, difficulty in connecting various processes, large mutual influence of cross-operations, many uncertain factors, long online construction time, and occupation of large lifting equipment It takes a long time and the construction plane is limited, which has a great impact on the logistics of the entire production site. It cannot meet the short-term construction period and safety requirements of large blast furnaces, and has become a bottleneck for enterprises to reduce costs and improve efficiency.

technical problem

Due to the above-mentioned defects in the existing technology, the present invention provides a blast furnace body lifting and sliding device, system and method to solve the problem of multiple hydraulic pipelines and long installation time during the construction and installation of existing lifting and sliding equipment.

Technical solutions

In order to achieve the above objects, the present invention provides the following technical solutions:

A blast furnace body lifting and sliding device includes a chute, a sliding shoe and a push-pull; wherein the sliding shoe is arranged inside the chute, and several chute reaction seats are installed at intervals on the sides of the chute; a push-pull oil cylinder is installed on the push-pull ; A lifting cylinder is set in the middle of the sliding shoe, and a traverse correction cylinder is set on the side of the lifting cylinder; the sliding shoe and the push-pull cylinder are fixedly connected; the push-pull and the chute are connected by a push-pull lock hook and several chute reaction seats The sliding shoes and the push-pull are sequentially engaged and connected; the sliding shoes and the push-pull move alternately along the chute, driving the blast furnace top above the sliding shoes to slide to the target position.

The chute includes a chute bottom plate and a chute side plate. A Teflon plate is provided on the chute bottom plate, and the sliding shoes slide on the Teflon plate; a number of chute reaction seats are arranged at intervals on the outside of the chute side plate.

The push-pull includes a push-pull body and a push-pull oil cylinder; a push-pull oil cylinder is provided in the middle of the push-pull body; blocks are provided on both sides of the push-pull body, a counterweight is provided outside the block, and a roller is provided at the front end. The rollers are arranged along the chute. sports.

The sliding shoe includes a sliding shoe body, a lifting jack is set at the middle position on the sliding shoe body, and a hydraulic valve group is set near the end position; connecting hinge seats are set at the front and rear ends of the sliding shoe body, and the push-pull oil cylinder is connected to the hinge seat at the front end. ; A load-sharing beam is set on the top of the lifting jack, and a correction jack is set on the side.

A guide wheel is provided on the side of the connecting hinge seat; a transverse base is provided above the main body of the sliding shoe. The lifting jack is installed in the transverse base. The deviation-correcting jack is installed on the side of the transverse base and is connected to the lifting jack through a pin.

A blast furnace body lifting and sliding system includes a plurality of blast furnace body lifting and sliding devices, an electrical synchronization module and a hydraulic control module that control several blast furnace body lifting and sliding devices, and a hydraulic pump station connected to the hydraulic module; The hydraulic control module includes a jacking correction synchronous hydraulic part and a push-pull synchronous hydraulic part. Each blast furnace body jacking and sliding device is individually controlled by an independent controller. All controllers are connected through a bus and share synchronous control data. and interactive control data.

It also includes a backup controller, which is connected to the controller of the blast furnace body lifting and sliding device through a quick plug for replacement.

A method for lifting and sliding the blast furnace body. First, a channel is opened at the bottom of the blast furnace. The blast furnace body lifting and sliding device is set inside the channel. The controller, electrical synchronization module, hydraulic control module and hydraulic pump station are set inside the channel. Outside the channel; secondly, connect the pipelines and lines between the blast furnace body lifting sliding device and the controller, electrical synchronization module, hydraulic control module and hydraulic pump station; thirdly, control the lifting jacks of all sliding shoes for pre-jacking operation, and set a new zero value; then, control all jacking jacks to lift to the set height and maintain the current pressure value; finally, control the push-pull to push out or retract synchronously, and push the front sliding shoe to move until the furnace body reaches the specified Location.

The lifting and sliding of the blast furnace body includes the removal of the old furnace body and the replacement of the new furnace body, where,

During the removal of the old furnace body, after moving the old furnace body to the designated position, control the lifting jacks of all sliding shoes to retract, so that the old furnace body drops to the preset support base, and continue to retract the lifting jacks to make the sliding shoes The shoe is separated from the old furnace body; after removing the connecting pipes and lines of the blast furnace body lifting and sliding device, move the blast furnace body lifting and sliding device out of the channel below the furnace body;

During the replacement process of a new furnace body, after moving the new furnace body to the designated position, first, drive the furnace body to move longitudinally by operating the push-pull cylinder to adjust the longitudinal deviation; secondly, adjust the lateral deviation by adjusting the lateral deviation-correcting jack cylinder until the new furnace body is adjusted. to the target position; then, control the lifting jacks of all sliding shoes to retract, so that the new furnace body drops to the preset support base, and continue to retract the lifting jacks to separate the sliding shoes from the old furnace body; finally, dismantle the blast furnace After the furnace body lifts the connecting pipes and lines of the sliding device, move the blast furnace body lifting and sliding device out of the channel below the furnace body.

The specific process of adjusting the horizontal deviation is as follows:

First, determine the direction of the lateral deviation and confirm the working direction of the deviation-correcting jack cylinder; then, control the cylinder of the deviation-correcting jack to move in the direction of eliminating the lateral deviation, driving the furnace body to move until the lateral deviation is adjusted in place and stop the operation.

beneficial effects

Compared with the existing technology, the above invention has the following advantages or beneficial effects:

1. The device and method can better serve the blast furnace overhaul project, realize the rapid lifting and sliding of the blast furnace body during the blast furnace overhaul construction process, and move it to the designated location, improve the efficiency of the blast furnace overhaul project, save project time, and reduce construction costs. safety hazards in the process.

2. The hydraulic valve group is set on the sliding shoe, and the valve group and the jack are connected by hydraulic hoses or hydraulic hard pipes; the hydraulic oil pipes from the pump station to the sliding shoe only have one oil inlet pipe and one oil outlet pipe. Reduce the number of pipelines between the pump station and the sliding shoe, improve the efficiency of on-site installation and construction, and save time.

3. This solution improves the efficiency and synchronization of the blast furnace overhaul jacking and sliding project.

4. This solution realizes the automation of the blast furnace overhaul jacking and sliding project, making it safer and more reliable.

Description of drawings

The invention, its features, features and advantages will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numbers refer to the same parts throughout the drawings. The drawings are not necessarily to scale, emphasis being placed on illustrating the spirit of the invention.

Figure 1 is a structural front view of the blast furnace body lifting and sliding device according to the present invention.

Figure 2 is a schematic structural perspective view of the blast furnace body lifting and sliding device according to the present invention.

Figure 3 is a schematic structural diagram of the chute of the blast furnace body lifting and sliding device according to the present invention.

Figure 4 is a three-dimensional view of the push-pull device of the blast furnace body lifting and sliding device according to the present invention, in which a is a front view, b is a side view, and c is a top view.

Figure 5 is a perspective view of the push-pull device of the blast furnace body lifting and sliding device according to the present invention.

Figure 6 is a schematic structural diagram of the sliding shoe of the blast furnace body lifting and sliding device according to the present invention.

Figure 7 is a synchronous hydraulic control circuit diagram for jacking and deflection correction of the blast furnace body jacking and sliding system according to the present invention.

Figure 8 is a push-pull synchronous hydraulic control circuit diagram of the blast furnace body jacking and sliding system of the present invention.

Figure 9 is a control circuit topology diagram of the blast furnace body lifting and sliding system of the present invention.

Figure 10 is a schematic diagram of the control interface of the blast furnace body lifting and sliding system of the present invention.

Figure 11 is an overall front view of the layout of the lifting and sliding device for the lower section of the blast furnace body in the method for lifting and sliding the blast furnace body according to the present invention.

Figure 12 is an overall top view of the layout of the lifting and sliding device for the lower section of the blast furnace body of the blast furnace body lifting and sliding method according to the present invention.

Figure 13 is an overall front view of the arrangement of the lifting and sliding device for the upper section of the blast furnace body in the method for lifting and sliding the blast furnace body according to the present invention.

Figure 14 is an overall top view of the layout of the lifting and sliding device for the upper section of the blast furnace body in the method for lifting and sliding the blast furnace body according to the present invention.

Among them, 1-chute; 2-push-pull; 3-sliding shoe; 4-chute side plate; 5-Teflon plate; 6-chute bottom plate; 7-rib plate; 8-reaction seat; 9- Push-pull cylinder; 10-push-pull body; 11-block; 12-counterweight; 13-roller; 14-reaction rod; 15-hydraulic valve group; 16-jacking jack; 17-load distribution beam; 18- Correction jack; 19-Sliding shoe body.

Embodiments of the invention

In order to enable those in the technical field to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only These are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of this application.

Specific embodiments are shown in Figures 1 to 6,

A blast furnace body lifting and sliding device. A single set of devices includes a chute 1, a sliding shoe 3, a push-pull 2 and accessories, etc.; among them, the sliding shoe 3 is arranged inside the chute 1, and is installed on the push-pull. The push-pull cylinders are connected by pins; the chute reaction seat 8 is installed on the side of the chute 1; the push-pull cylinder 9 is installed on the push-pull 2; a jacking cylinder is set in the middle of the sliding shoe 3, and a lateral deviation correction is set on the side of the jacking cylinder. The oil cylinder is used to adjust the left and right position when installing the furnace body; the sliding shoe 3 and the push-pull oil cylinder 9 are connected by a pin; the push-pull and the chute are fixedly connected through the push-pull lock hook and the chute reaction seat 8.

The overall design of the chute includes a chute bottom plate 6 and a chute side plate 4. A Teflon plate 5 is provided on the chute bottom plate 6. The sliding shoe 3 slides on the Teflon plate 5. The kinetic friction coefficient of the Teflon plate Very small, when the sliding shoe slides on the Teflon plate, the frictional resistance is small, making it easier for the push-pull cylinder of the push-pull to push the sliding shoe; a number of chute reaction seats 8 are arranged at intervals on the outside of the chute side plate 4, and the push-pull The upper reaction rod is connected to the reaction seat 8 of the chute to provide a support reaction force for the entire push-pull sliding movement. The push-pull device includes a push-pull device body 10 and a push-pull oil cylinder 9; a push-pull oil cylinder 9 is provided in the middle of the push-pull device body 10, and the push-pull oil cylinder 9 is connected to the front hinge seat of the sliding shoe 3 to provide thrust for the push-pull device; the push-pull device body Push-pull lock hooks are provided on both sides of the block 10. The push-pull lock hook includes a block 11, a counterweight block 12, and a reaction force rod 14. A counterweight block 12 and a reaction force rod 14 are provided outside the block 11. The counterweight block 12. The reaction rod 14 is movably connected to the stopper 11 in sequence. The reaction rod 14 and the counterweight 12 control the stopper 11 to be engaged and fixed on the reaction seat 8; a roller 13 is provided at the front end of the push-pull body 10. 13 moves along the chute; the blocks 11 provided on the left and right sides of the push-pull are used to apply supporting reaction force to the push-pull; the push-pull body slides on the steel plates on both sides of the chute through rollers.

The sliding shoe is composed of multiple components, mainly: the sliding shoe body 19, the load sharing beam 17, the lifting jack 16, the deviation jack 18, the hydraulic valve group 15, etc.; the sliding shoe body is a main steel structure, and the sliding shoe The bottom of the main body 19 is provided with a stainless steel plate to increase the wear resistance of the bottom and reduce the friction during sliding; the sliding shoe main body 19 is provided with connecting hinge seats at the front and rear, which are connected to the push-pull cylinder of the push-pull; the connecting hinge seat is provided on the side There are guide wheels. During the sliding process of the sliding shoe, if the sliding direction is deflected, the side guide wheels will prevent the side of the sliding shoe from direct contact and friction with the chute; there is a transverse base above the sliding shoe, a lifting jack 16 and a correction jack 18 Installed here; the jacking jack 16 is installed inside the traversing base located on the sliding shoe body 19; a stainless steel plate is placed between the jacking jack 16 and the traversing base to reduce the friction between the jack 18 and the base during correction. force; there is a universal hinge above the jacking jack 16, and the upper part of the universal hinge is provided with a load-sharing beam 17 connected with it to prevent the front and rear cylinders from being out of sync during the jacking process and causing damage to the jack body; the deviation-correcting jack is installed on the sliding shoe The side of the traversing base on the main body is connected to the jacking jack through a pin, which drives the jacking jack to move to achieve the purpose of deviation correction; in the initial state, the deviation correction jack is in the neutral position.

The hydraulic valve group is set on the sliding shoe, and the hydraulic valve group and the jack are connected by hydraulic hoses or hydraulic hard pipes; there are only one oil inlet pipe and one oil outlet pipe from the pump station to the sliding shoe, which reduces The number of pipelines between the pump station and the sliding shoe improves the efficiency of on-site installation and construction and saves time.

The specific application principles and operating methods of the blast furnace body lifting and sliding device are as follows:

The first step is to install the chute of the blast furnace body lifting sliding device at the designated position, install the sliding shoe and push-pull on the chute, and connect the sliding shoe and push-pull together;

In the second step, control the lifting jack on the sliding shoe to lift the blast furnace body to the specified height and maintain the current state of the jack;

The third step is to control the push-pull cylinder to start pushing out simultaneously and push the front sliding shoe to the designated position;

The fourth step is to loosen the connection between the push-pull body and the reaction seat, control the push-pull cylinder to retract, pull the push-pull body along the chute to the next reaction seat position, and connect the push-pull body with the next reaction seat. The base is connected and fixed;

Step 5: Repeat steps 3 and 4 until the blast furnace body reaches the designated position.

The above-mentioned sliding process includes moving out the old furnace body and moving in the new furnace body for replacement. After all steps are completed, if the new furnace body is replaced, a horizontal and lateral correction process is required until the new furnace body reaches the designated target position. Carry out subsequent operations.

The blast furnace body lifting and sliding device can not only be applied to the sliding of the blast furnace body, but also can be applied to the sliding replacement of similar large-scale equipment. This solution only takes the blast furnace body as an example for illustration.

Specific embodiments are shown in Figures 7 to 10,

The system includes several chutes, multiple push-pulls, multiple sets of sliding shoes, multiple hydraulic pump stations, electrical synchronization systems and other equipment. The equipment for jacking and sliding construction is selected and equipped according to the weight of the blast furnace body. This embodiment takes the application of three sets of blast furnace body lifting and sliding devices as an example, and further describes their composition, the connection relationship between each equipment, etc. in detail.

This embodiment is a modular stand-alone system configuration. The electrical control part includes four controllers. Each group of blast furnace body lifting and sliding devices is controlled by one controller, and the other is a backup controller. All controllers The controllers are connected through a bus, and the controllers can operate and control each other.

Each controller is equipped with a PLC electrical control cabinet. All controllers use PROFINET bus communication. Each controller can be used as a host to operate other controllers. The controller has setting permissions and can be used as a host or slave. machine.

A spare PLC electrical cabinet is also equipped. The internal component configuration is consistent with that of each line electrical cabinet. It adopts quick plug replacement technology to ensure that when a line electrical cabinet fails, it can be directly replaced on site.

The operation and settings of the system can be in the form of a touch screen. The specific operation interface can be freely set and personalized according to different situations. The specific interface layout is not a limiting setting. The content mainly includes all control parameter settings. , status display, control mode parameter setting window, pumping station system status display and control setting window, signal detection status and setting window, etc.

The accompanying drawings provide an overall schematic diagram of line connections. If some of the drawings are not clearly marked, it does not affect the disclosure of the overall technical solution and the specific substantive content to be protected.

This method uses the expansion and contraction of the push-pull cylinder and the action of the reaction seat to control the sliding shoe and the push-pull to alternately move in the chute, thereby driving the furnace body to the designated position and adjusting the position deviation.

Specific embodiments, as shown in Figures 11 to 14, the equipment selection for jacking and sliding construction and the arrangement of jacking points for different constructions are based on the weight of the blast furnace body.

A channel is set up at the lower part of the blast furnace segmented furnace body, and then multiple sets of jacking and sliding equipment are slid in, and the blast furnace segmented furnace body is jacked up at the lower part of the blast furnace body, and then slid to the designated position.

The method will be described in detail below by taking the application of three groups of devices as an example.

The specific process for moving the old furnace body out of its original location is as follows:

The first step is to open a channel at the bottom of the blast furnace body to be moved and lay the chute into the channel;

Step 2: After the chute is laid and fixed, place the sliding shoe and push-pull device to the designated position (lower part of the old furnace body);

The third step is to connect the pipelines and lines between various components, including the controller, hydraulic pump station, hydraulic control module, and electrical synchronization module, and check the pipelines and lines;

Step 4: Power the system and select any controller as the main controller;

Step 5: Operate the buttons on the main controller interface to raise the jacks on all sliding shoes, and perform pre-jacking operations on the hydraulic jacks placed on the sliding shoes;

Step 6: When the pressure values at all points reach the set value (such as 5MPa), set the pressure value at this time as the new zero value in the system;

Step 7: After debugging and preparation are completed, control all jacking jacks to be synchronously lifted to a certain height (about 100mm) through the controller interface, leaving a certain gap between the bottom of the furnace body and the foundation concrete;

Step 8: After lifting to the specified height, the lifting jack stops working and the pressure value at this time is maintained at the final state;

Step 9: Operate the control button on the controller interface to start all push-pull cylinders to push out or retract simultaneously, and push the front sliding shoe until the upper furnace body reaches the designated position;

Step 10: Operate the button on the electric control box to retract the sliding shoe jack so that the furnace body drops to the preset support base; continue to retract the jack to separate the sliding shoe from the furnace body;

Step 11: Remove the sliding shoe, push-pull hydraulic pipeline and circuit, and separate them from the pump station.

Step 12: Move the pump station, sliding shoes, push-pull, etc. out of the lower section of the furnace body and place them in a safe place. The removal process of the old furnace body is completed.

Among them, in the ninth step, the specific process of pushing and pulling the sliding shoe by the push-pull is as follows:

First, control the push-pull oil cylinder to push out, push the sliding shoe forward on the chute, and stop moving when the oil cylinder is pushed to the maximum range; secondly, lift the counterweight on the side of the push-pull so that the reaction rod drives the block The block breaks away from the reaction seat on the chute; then, control the oil cylinder of the push-pull to retract, and at the same time drive the push-pull body to move forward along the chute to the position of the next reaction seat; finally, control the counterweight block, reaction block The force rod clamps the stopper on the current reaction seat; the above process is repeated in sequence until the sliding shoe moves to the designated position and stops.

The specific process of moving the new furnace body to the location of the blast furnace is as follows:

Step 1. Place the sliding shoe and push-pull device to the designated position (lower part of the new furnace body), and the pumping station is in place;

Step 2. Connect the pipelines and lines of the controller, hydraulic pump station, hydraulic control module and electrical synchronization module;

Step 3. After checking the pipeline route, supply power to the controller and pumping station;

Step 4. Operate the buttons on the controller interface to raise the jacks on all sliding shoes, and perform pre-jacking operations on the hydraulic jacks placed on the sliding shoes;

Step 5. When the pressure values at all points reach the set value (such as 5MPa), set the pressure value at this time as the new zero value in the system;

Step 6. After debugging and preparation work is completed, use the controller to control all jacking jacks to simultaneously lift to a certain height (about 100mm), leaving a certain gap between the bottom of the furnace body and the foundation concrete;

Step 7. After lifting to the specified height, the lifting jack stops working and the pressure value at this time is maintained at the final state;

Step 8. Operate the buttons on the controller interface to make all push-pull cylinders start to push out and retract simultaneously, and push the front sliding shoe until the new furnace body reaches the designated position;

Step 9. After the new furnace body reaches the designated position, first drive the furnace body to move longitudinally by operating the push-pull oil cylinder to adjust the longitudinal deviation; after the longitudinal deviation is adjusted to the designated position, adjust the lateral deviation;

The adjustment of lateral deviation is achieved by operating the lateral deviation correction cylinder. The steps of lateral deviation correction are as follows:

(1) Determine the direction of lateral deviation and confirm the working direction of the deviation-correcting jack cylinder;

(2) Operate the corresponding control button on the controller interface to make the correction jack cylinder move in the direction of eliminating the lateral deviation, thereby driving the jack and balance beam (i.e., the load-sharing beam). Different terms in this field all represent the same Parts) move; because the balance beam is in direct contact with the furnace body, it drives the furnace body to move under the action of friction until the lateral deviation is adjusted in place and the operation stops;

Step 10. Operate the button on the controller interface to retract the sliding shoe jack so that the furnace body drops to the preset support base; continue to retract the jack to separate the sliding shoe from the furnace body;

Step 11. Remove the sliding shoe, push-pull hydraulic pipeline and circuit, and separate them from the pump station.

Step 12. Move the pump station, sliding shoes, push-pull, etc. out of the lower section of the furnace body and place them in a safe place.

The above operation process is applicable to the sliding of different sections of the blast furnace. The only difference in the removal of different sections is that the basic surface of the chute and other devices is different, and the sliding method used is the same.

It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or equipment that includes a series of steps or units and need not be limited to clearly defined terms. Those steps or elements listed may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", The orientations or positional relationships indicated by "vertical", "horizontal", "horizontal", "longitudinal", etc. are based on the orientations or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to having a specific orientation, or to be constructed and operated in a specific orientation.

Moreover, some of the above terms may also be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "upper" may also be used to express a certain dependence relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

In addition, the terms "installed," "set," "provided," "connected," "connected to," and "socketed" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or between two devices, components or components. internal connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Those skilled in the art should understand that variations can be implemented by those skilled in the art in combination with the prior art and the above-mentioned embodiments, which will not be described again here. Such modifications do not affect the essential content of the present invention and will not be described again here.

The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the equipment and structures not described in detail should be understood to be implemented in ordinary ways in the art; any person familiar with the art will not deviate from the scope of the invention. Within the scope of the technical solution of the invention, the above-disclosed methods and technical content can be used to make many possible changes and modifications to the technical solution of the invention, or be modified into equivalent embodiments with equivalent changes, which does not affect the essential content of the invention. . Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Industrial applicability

1. This method improves the efficiency and synchronization of the blast furnace overhaul jacking and sliding project;

2. This method realizes the automation of jacking and sliding engineering for blast furnace overhaul, making it safer and more reliable.

Claims

[Amended in accordance with Rule 26 01.02.2023]
A blast furnace body lifting and sliding device, which is characterized by: including a chute, a sliding shoe and a push-pull; wherein the sliding shoe is arranged inside the chute, and a number of chute reaction seats are installed at intervals on the side of the chute; the push-pull A push-pull cylinder is installed on the upper part of the sliding shoe; a lifting cylinder is installed in the middle of the sliding shoe, and a traverse correction cylinder is installed on the side of the lifting cylinder; the sliding shoe and the push-pull cylinder are fixedly connected; the push-pull and the chute are connected to several slides through the push-pull lock hook. The groove reaction seats are connected in sequence; the sliding shoe and the push-pull alternately move along the chute, driving the blast furnace top above the sliding shoe to slide to the target position.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body lifting and sliding device according to claim 1, characterized in that: the chute includes a chute bottom plate and a chute side plate, a Teflon plate is arranged on the chute bottom plate, and the sliding shoes are mounted on the Teflon The plate slides; several chute reaction seats are arranged at intervals on the outside of the chute side plate.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body lifting and sliding device according to claim 1, characterized in that: the push-pull includes a push-pull body and a push-pull oil cylinder; a push-pull oil cylinder is provided in the middle of the push-pull body; and blocks are provided on both sides of the push-pull body. , a counterweight block is arranged on the outside of the block, and a roller is arranged on the front end, and the roller moves along the chute.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body jacking and sliding device according to claim 1, characterized in that: the sliding shoe includes a sliding shoe body, a lifting jack is provided at the middle position of the sliding shoe body, and a hydraulic valve group is provided near the end position; The front and rear ends of the boot body are provided with connecting hinge seats, and the push-pull cylinder is connected to the hinge seats at the front end; a load-sharing beam is provided above the lifting jack, and a deviation-correcting jack is provided on the side.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body lifting and sliding device according to claim 4, characterized in that: a guide wheel is provided on the side of the connecting hinge seat; a transverse base is provided above the main body of the sliding shoe, and the lifting jack is installed in the transverse base to correct deviations. The jack is installed on the side of the transverse base and is connected to the lifting jack through a pin.
[Amended in accordance with Rule 26 01.02.2023]
A blast furnace body lifting and sliding system, which is characterized in that it includes several blast furnace body lifting and sliding devices according to any one of claims 1 to 5, and controls the electrical circuits of several blast furnace body lifting and sliding devices. The synchronization module and the hydraulic control module are connected to the hydraulic pump station of the hydraulic module; the hydraulic control module includes a lifting and deviation-correcting synchronous hydraulic part and a push-pull synchronous hydraulic part. Each blast furnace body lifting and sliding device is controlled by an independent controller. Individual control, all controllers are connected through the bus, sharing synchronous control data and interactive control data.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body lifting and sliding system according to claim 6, characterized in that it also includes a backup controller, which is replaced and connected to the controller of the blast furnace body lifting and sliding device through a quick plug.
[Amended in accordance with Rule 26 01.02.2023]
A blast furnace body lifting and sliding method, characterized in that: first, a channel is opened at the bottom of the blast furnace, and the blast furnace body lifting and sliding device in claim 6 or 7 is arranged inside the channel, and the controller and electrical synchronization The module, hydraulic control module and hydraulic pump station are set outside the channel; secondly, connect the pipelines and lines between the blast furnace body lifting and sliding device and the controller, electrical synchronization module, hydraulic control module and hydraulic pump station; thirdly, Control the jacking jacks of all sliding shoes to perform pre-jacking operations and set a new zero value; then, control all jacking jacks to lift to the set height and maintain the current pressure value; finally, control the push-pull to push out or retract synchronously, Push the front sliding shoe until the furnace body reaches the designated position.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body lifting and sliding method according to claim 8, characterized in that: the blast furnace body lifting and sliding includes removing the old furnace body and replacing the new furnace body, wherein,
During the removal of the old furnace body, after moving the old furnace body to the designated position, control the lifting jacks of all sliding shoes to retract, so that the old furnace body drops to the preset support base, and continue to retract the lifting jacks to make the sliding shoes The shoe is separated from the old furnace body; after removing the connecting pipes and lines of the blast furnace body lifting and sliding device, move the blast furnace body lifting and sliding device out of the channel below the furnace body;
During the replacement process of a new furnace body, after moving the new furnace body to the designated position, first, drive the furnace body to move longitudinally by operating the push-pull cylinder to adjust the longitudinal deviation; secondly, adjust the lateral deviation by adjusting the lateral deviation-correcting jack cylinder until the new furnace body is adjusted. to the target position; then, control the lifting jacks of all sliding shoes to retract, so that the new furnace body drops to the preset support base, and continue to retract the lifting jacks to separate the sliding shoes from the old furnace body; finally, dismantle the blast furnace After the furnace body lifts the connecting pipes and lines of the sliding device, move the blast furnace body lifting and sliding device out of the channel below the furnace body.
[Amended in accordance with Rule 26 01.02.2023]
The blast furnace body lifting and sliding method according to claim 9, characterized in that: the specific process of adjusting the lateral deviation is as follows:
First, determine the direction of the lateral deviation and confirm the working direction of the deviation-correcting jack cylinder; then, control the cylinder of the deviation-correcting jack to move in the direction of eliminating the lateral deviation, driving the furnace body to move until the lateral deviation is adjusted in place and stop the operation.