CN207515846U - A kind of circular coal yard self-propelled monitors system - Google Patents

Abstract

The utility model discloses a self-propelled monitoring system for a circular coal yard. The coal yard includes a coal yard closed structure composed of a roof and a coal retaining wall, and coal piles are placed in the coal yard closed structure; the system includes a monitoring trolley, running track, base station and remote control room; among them, the running track includes working track, descending track and Charging and maintenance track; the working track is a circular track, which is set on the roof and directly above the top of the coal pile; monitoring equipment is installed on the monitoring trolley, and the monitoring trolley carries the monitoring equipment to move back and forth along the running track to monitor the coal pile in the coal yard; The monitoring trolley, running track and base station are set in the closed structure of the coal yard, while the remote control room is set outside the closed structure of the coal yard; the base station is used to receive and store the coal yard data obtained by the monitoring equipment, and transmit the coal yard data to the remote control room; The remote control room is used to obtain coal yard data from the base station. The self-propelled monitoring system of the circular coal yard of the utility model has the advantages of high efficiency, energy saving and no blind area.

Description

A self-propelled monitoring system for a circular coal yard

technical field

The utility model relates to the technical field of power plant auxiliary equipment, in particular to a self-propelled monitoring system for circular coal yards.

Background technique

During the operation of a coal-fired power station, the amount of coal stored in the coal yard and the temperature of each area of the coal pile are two sets of data that operators are most concerned about. The original method of panning coal is to manually measure the coal pile with a ruler, and then calculate the amount of coal stored in the coal yard. At present, the amount of coal stored in the coal yard of coal-fired power stations is generally measured by the laser pan coal instrument system; the temperature of each area of the coal pile is generally obtained by the infrared thermometer system.

The working principle of the laser coal pan instrument is: use a high-precision laser to scan the surface of the coal pile on the coal yard, collect surface shape information at the same time, and then synthesize it into a three-dimensional coal pile shape through computer processing, so as to obtain the volume of the coal pile. Then, through the parameters such as the density set in advance, the coal stock in the coal yard is calculated. The working principle of the infrared thermometer is: by receiving the infrared heat energy emitted from the surface of the coal pile, it can accurately judge the surface temperature of the coal pile, and then process it into an image representing the real-time temperature of the coal pile through computer processing. Through software processing, the real-time temperature monitoring of the coal pile can be superimposed on the 3D image formed by the laser disk coal, thus forming a 3D real-time model of the coal field with temperature information.

In coal-fired power stations, due to the external pressure of environmental protection and the internal motivation of refined management of coal combustion, the traditional open-pit coal yard has been gradually replaced by a closed coal yard. The circular coal yard is a kind of closed coal yard which is widely used. At present, the typical construction mode of the circular coal yard system is: coal retaining walls of a certain height are set around the coal yard; Stacker-reclaimer with side access. Accompanying drawing 2 has shown the arrangement situation of circular coal field.

At present, the laser pan coal meter in the circular coal yard is generally fixed-point installed on the roof of the coal yard, or installed on the stacker and reclaimer inside the circular coal yard. Although this installation method is simple, there are monitoring blind spots. The inner wall of the side coal retaining wall of the circular coal yard is generally equipped with temperature monitoring facilities, but the temperature monitoring of the surface of the coal pile inside the coal yard is often lack of means.

Therefore, there is an urgent need in this field to develop a new self-propelled monitoring system for circular coal yards without blind spots.

Utility model content

The purpose of the utility model is to provide a circular coal yard self-monitoring system with high degree of automation and no blind area.

In the utility model, the utility model provides a self-propelled monitoring system for a circular coal yard. The coal yard includes a coal yard closed structure composed of a roof and a coal retaining wall, and coal piles are arranged in the coal yard closed structure;

The system includes a monitoring car, a running track, a base station and a remote control room;

Wherein, the running track includes a working track, a descending track and a charging maintenance track;

The working track is a circular track, which is set on the roof and directly above the top of the coal pile;

The monitoring trolley is equipped with monitoring equipment, and the monitoring trolley carries the monitoring equipment and moves back and forth along the running track to monitor the coal pile in the coal yard;

The monitoring trolley, running track and base station are set inside the closed structure of the coal yard, and the remote control room is set outside the closed structure of the coal yard;

The base station is used to receive and store the coal yard data acquired by the monitoring equipment, and transmit the coal yard data to the remote control room;

The remote control room is used to obtain coal yard data from the base station.

Preferably, the monitoring trolley is powered by its own battery, and uses the working gap to pass through the charging maintenance track to the charging position for charging.

Preferably, a cleaning device is provided at the front end and/or the rear end of the moving direction of the monitoring trolley. Preferably, the cleaning device is made of wear-resistant material.

Preferably, the monitoring equipment includes a laser coal detector, an infrared thermometer and/or a visual camera.

The running track is provided with a position monitoring device for measuring the position of the monitoring trolley.

The monitoring trolley is wheeled or tracked.

The working track is a steel rail, preferably an I-shaped steel, H-shaped steel, or C-shaped steel rail.

The charging maintenance track is arranged on the top of the coal retaining wall.

There is also a coal yard mechanical foundation in the coal yard, and the coal yard mechanical foundation is set in the center of the coal yard.

The top stack side take stacker reclaimer is installed on the mechanical foundation of the coal yard.

In another preferred example, the system further includes an alarm.

In another preferred example, the system is further provided with a controller for controlling the movement or stop of the trolley.

In another preferred example, the controller is set on the trolley.

In another preferred example, the controller is operated by a ground operator to remotely control the car.

The descending track is arranged between the working track and the charging and maintenance track, and the monitoring trolley descends from the working track to the charging and maintenance track along the descending track for maintenance and/or charging.

It should be understood that within the scope of the present utility model, the above-mentioned technical features of the present utility model and the technical features specifically described in the following (such as embodiments) can be combined with each other to form new or preferred technical solutions . Due to space limitations, we will not repeat them here.

Description of drawings

Fig. 1 is that Fig. 1 is the monitoring dolly suspension schematic diagram in the system of the present utility model;

Figures 2a-2c are schematic diagrams of different trolley tracks;

Figure 3 is a schematic diagram of the descending trajectory;

Fig. 4 is a schematic diagram of setting an embodiment of the system of the present invention in a coal yard;

Figure 5a-c is a schematic diagram of a circular coal pile;

Fig. 6 is a perspective view of the track arrangement in the coal yard of an embodiment of the system of the present invention;

FIG. 7 is a schematic diagram of data information transmission of the system of the present invention.

The marks in each drawing are: 1-monitoring trolley; 2-working track; 3-descending track; 4-charging and maintenance track; 5-coal retaining wall; -Coal pile; 10-Mechanical foundation of coal yard; 11-Roof; 12-Laser coal pan instrument; 13-Remote control room.

Detailed ways

After extensive and in-depth research, the inventor has developed a self-propelled monitoring system for a circular coal yard for the first time. Its function is to obtain a three-dimensional model of the coal pile in the coal yard, thereby obtaining the amount of coal stored in the coal yard, and The real-time temperature of each area of the coal yard can be obtained. Compared with the prior art, the technology has a higher degree of automation, and the obtained data is more accurate and comprehensive. This technology is applicable to new construction and technical renovation projects. The utility model uses a self-propelled trolley to carry one or more of various monitoring equipment such as a laser pan coal meter, an infrared thermometer, a visual camera, etc., and automatically obtains the corresponding data required by the operator.

At present, the commonly used laser pan coal meter is generally installed on the roof of the circular coal yard or on the internal stacking and reclaiming machinery. Due to the complex shape of the actual coal pile, this method of coal storage will inevitably have blind spots, and the volume information of the coal pile cannot be accurately obtained, so that the accurate data of the coal storage in the coal yard cannot be obtained. Few coal pile surface temperature monitoring devices are installed in circular coal yards. Even if one or two are installed at fixed points, blind spots will inevitably occur and the situation of the entire coal yard cannot be effectively monitored. In addition, when fixed-point installation is adopted, in order to increase the monitoring area of the equipment, the laser pan coal detector, infrared thermometer, visual camera and other equipment in the circular coal yard are often installed at very high positions, which is very inconvenient for maintenance.

The purpose of the utility model is to develop a self-propelled round coal yard monitoring system with high efficiency, energy saving and no blind spots, aiming at the shortcomings of the existing round coal yard monitoring system. The utility model can be applied to newly-built coal yards, and can also be applied to the technological transformation of coal yards that have been put into operation.

Completed the utility model on this basis.

the term

As used in this article, the term "circular coal yard" refers to a coal yard in which the stacker-reclaimer is used as the operating machine, and the coal pile formed by the coal stacking operation is in the form of a ring, and the entire coal yard occupies a circular coal yard when viewed from the outside .

As used herein, the term "pan coal" refers to the work of a coal-fired power station to take stock of the amount of coal stored on its coal yard.

The main advantages of the utility model include:

(1) The system of the present utility model adopts the self-propelled trolley to carry the measuring instrument to move in the coal yard to obtain the coal yard data, which has a high degree of automation and more accurate measurement data;

(2) The self-propelled trolley of the system of the present utility model is driven by a storage battery, and there is no need to set additional power supply facilities for the trolley;

(3) The charging of the self-propelled trolley of the system of the utility model is convenient, and the trolley charging station can be set at a position that is easy to reach for the operation and maintenance personnel through the reasonable layout of the track, and it is also easy to replace the battery at the same time;

(4) In the system of the present utility model, only one laser pan coal meter and one infrared thermometer need to be installed in each circular coal yard. Comprehensive data of all coal piles, no blind spots;

(5) The self-propelled trolley of the system of the present utility model can adopt wheel type or crawler type, by adding track cleaner, can avoid the influence of track coal accumulation;

(6) In the system of the present utility model, the location of the trolley can be accurately obtained by using the gray bus position detection technology, and the position of the trolley can be monitored in the centralized control room by installing a visual camera on the trolley.

(7) Wireless data transmission is adopted between the measuring instrument and the coal yard on-site base station, no need to arrange optical cables, cables and other facilities, and the data transmission is convenient;

(8) In the system of the present utility model, transmission methods such as wireless data transmission, optical fiber data transmission, etc. can be used between the on-site base station of the coal yard and the program control room, or multiple transmission methods can be used at the same time, and the data transmission is reliable.

(9) According to the system of the utility model, the three-dimensional model obtained by measurement can display information such as coal storage, storage time, coal quality, surface temperature, etc. of all coal piles on the coal yard, and can also make intelligent recommendations to operators;

(10) The transmission and transmission response speed of the system of the utility model is fast, and the existing data transmission is not affected; the equipment of the utility model is attached to a fixed track, the measurement reference is stable, and the system error is small; the data transmission of the utility model is convenient.

Self-propelled trolleys are used to carry coal yard monitoring equipment. The self-propelled trolley is powered by its own battery, and returns to the designated location for charging by itself during the working gap. By rationally setting up the track, the self-propelled trolley can be lowered to the vicinity of the retaining wall of the circular coal yard, where the operation and maintenance personnel can easily reach for charging, and it is also convenient for equipment maintenance and battery replacement of the trolley. The self-propelled trolley can be wheeled or tracked, and the track of the trolley can be I-shaped steel, H-shaped steel or C-shaped steel, as shown in Figure 2a-c. Figure 1 takes the wheeled trolley as an example to schematically draw the suspension connection mode between the trolley and the track. The suspension mode of crawler trolley is similar to it. Figure 3 shows a method of providing a descending section of track at the end of a closed structure. The descending section at the end is used for the trolley to descend from the high-altitude working position to the charging and maintenance position near the ground. Both the front end and the rear end of the self-propelled trolley are provided with cleaning devices. The cleaning device is intended to be made of wear-resistant polymer or other materials, and is used to clean the coal deposits on the track in the direction of travel of the trolley. It can prevent spontaneous combustion of coal deposits on the track, and prevent trolleys from derailing, rail jamming, or slipping due to coal deposits.

The theoretical shape of the coal pile in the circular coal yard is circular; the rotation angle limit of the stacker-reclaimer is generally set during design, and a running channel is left; The shape is often very complex. Figures 5a-c illustrate various shapes of coal piles in circular coal yards. Figure 5a is the designed ideal coal pile shape, Figure 5b is the maximum coal pile shape set for operation, and Figure 5c is the coal pile shape after the actual operation. Figure 5c shows the situation of coal piles divided into two piles in a circular coal yard. In actual operation, the piles may be very complicated, and the staggering and covering of coal piles will form an extremely complicated shape of coal piles. It can be seen from Figure 5a-c that due to the complex shape of coal piles, there are inevitably blind spots in the fixed-point coal yard monitoring facilities.

The utility model can use the self-propelled trolley to carry the monitoring equipment to carry out all-round monitoring on the inside of the circular coal yard without leaving any blind spots. The track of the self-propelled trolley is installed on the roof of the circular coal yard, and is arranged directly above the top of the ring-shaped coal pile. Accompanying drawing 6 has illustrated the installation position of trolley track.

Accompanying drawing 6 has shown the installation position of the trolley track on the top of the coal pile and the setting situation of the transition section. The turning radius of the track transition is determined by the turning radius that the trolley can pass.

Precise positioning of the trolley improves the accuracy of the 3D model of the coal pile in the coal yard. In order to remotely grasp the exact position of the trolley, a gray bus position monitoring device can be installed on the track, or the position of the trolley can be determined by working together with a laser rangefinder and an angle encoder. Among them, the Gray bus position detection includes four parts: address code transmitter, receiver, Gray bus, and antenna box. The position detection of the Gray busbar is to obtain the position of the antenna box in the length direction of the Gray busbar through the signal formed by the electromagnetic coupling between the Gray busbar and the antenna box. According to the pre-set starting point information of the gray bus, combined with the position information in the direction of its length, the trolley can be accurately positioned.

The equipment that can be carried on the trolley includes: laser pan coal meter, infrared thermometer, visual camera, etc. These monitoring devices all adopt wireless data transmission and communicate with the data base station located in the coal yard. A storage device is installed in the data base station, which has the ability to store data for a period of time. The data transmission between the data base station and the program control room can be in the form of optical fiber or wireless. Accompanying drawing 7 shows the way and direction of data transmission and control signal transmission.

The self-propelled trolley has two operating modes: the first is automatic operation, that is, after receiving the start command, it will automatically complete a coal yard monitoring work according to the preset program; the second is ground remote control operation, that is, the ground personnel use remote control to control The trolley walks and completes the coal yard monitoring work under manual intervention. Among them, the automatic operation mode of the trolley presets two speeds: the first is the rated operating speed, which is used for precise coal panning and temperature measurement, etc.; the second is the fast operating speed, which is used for fast, rough Occasions to understand the situation of the coal yard.

Operators can remotely monitor and start the trolley in the central control room. The three-dimensional model of the coal yard can be displayed on the display screen in the centralized control room. Through this 3D model, the following information can be understood: the amount of coal stored in each coal pile in the coal yard, the coal quality of each coal pile (it will be stored in the system after entering the coal pile), the storage time of each coal pile, and the surface temperature of the coal pile Wait. In addition, according to the pre-set intelligent program, the operation interface can also recommend the current priority coal pile to the operator through a dialog box, and display it on the 3D model. In addition, when the coal unloading system has coal delivered to the coal yard, the operation interface can also provide the operating personnel with a stacking location where the current unloading coal type can be stored. When the system detects that the surface temperature of a coal pile is higher than the set value, an alarm will be displayed in the form of a dialog box on the operation interface, and the overheated coal pile will be displayed in the 3D model.

The coal yard monitoring system of the utility model has the following characteristics:

(1) A circular track is set on the top of the circular coal yard, and the self-propelled trolley walks along the track;

(2) The self-propelled trolley can walk automatically according to the pre-determined program, or it can be manually operated on the ground or on the maintenance channel on the top of the coal retaining wall by remote control.

(3) Self-propelled trolleys carry measuring instruments, such as laser pan coal detectors, infrared thermometers, visual cameras, etc.;

(4) Wireless data transmission is adopted between the measuring instrument carried on the self-propelled trolley and the local base station in the coal yard;

(5) The location of the self-propelled trolley is detected by the position of the Gray bus, or the combination of the laser range finder and the angle encoder.

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. For the experimental methods without specific conditions indicated in the following examples, the conventional conditions or the conditions suggested by the manufacturer are usually followed. Percentages and parts are by weight unless otherwise indicated.

It should be noted that in the claims and description of this patent, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or Any such actual relationship or order between such entities or operations is implied. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Example

As shown in Fig. 4, Fig. 6 and Fig. 7, a self-propelled monitoring system for a circular coal yard of the utility model. The coal yard includes a coal yard closed structure consisting of a roof 11 and a coal retaining wall 5, and a coal pile 9 is arranged in the coal yard closed structure. The system includes a monitoring car 1, a running track, a base station 8, and a remote control room 13; wherein, the running track includes a working track 2, a descending track 3, and a charging and maintenance track 4; the working track 2 is a circular track suspended on the roof 11, located at The top of coal pile 9 is directly above. The monitoring trolley 1 is equipped with monitoring equipment such as a laser pan coal meter 12, and the monitoring trolley 1 carries the laser pan coal instrument 12 to move back and forth along the running track to monitor the coal pile 9 in the coal yard. The base station 8 is used to receive and store the coal field data acquired by the monitoring equipment, and transmit the coal field data to the remote control room 13 . The 3D model measured by the system can display information such as coal storage, storage time, coal quality, surface temperature and other information of all coal piles on the coal yard, and can also make intelligent recommendations to operators. The remote control room 13 makes an analysis according to the data of the coal yard to guide the operation of the staff. The transmission and transmission response of the system is fast, and the data transmission is convenient.

All documents mentioned in this application are incorporated by reference in this application as if each were individually incorporated by reference. In addition, it should be understood that after reading the above teaching content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Claims (10)

1. a kind of circular coal yard self-propelled monitors system, which is characterized in that coal yard includes the coal yard being made of roof and coal-stopping wall Enclosed construction, dump are set in the coal yard enclosed construction；

Control the system comprises monitoring trolley, running track, base station and far room；

Wherein, the running track includes working track, declines track and charge and overhaul track；

The working track is circular orbit, on the roof, the surface at the top of dump；

The monitoring trolley is equipped with monitoring device, and it is round-trip along the running track that the monitoring trolley carries the monitoring device Movement, is monitored dump in coal yard；

The monitoring trolley, running track and base station are located in the coal yard enclosed construction, and the remote control room be located at it is described Outside coal yard enclosed construction；

The base station is used to receive, store the coal yard data that the monitoring device obtains, and coal yard data are transferred to remote control room；

The remote control room is used to obtain coal yard data from the base station.

2. the system as claimed in claim 1, which is characterized in that the monitoring trolley utilizes work by included storage battery power supply Make gap to charge by the charging maintenance track arrival charge position.

3. the system as claimed in claim 1, which is characterized in that the front-end and back-end in the monitoring carriage walking direction are equipped with Clearing apparatus.

4. the system as claimed in claim 1, which is characterized in that the monitoring device includes laser coal inventory instrument, infrared thermometry Instrument and/or visual camera head.

5. the system as claimed in claim 1, which is characterized in that the running track is equipped with position monitoring device, for surveying The position of the fixed monitoring trolley.

6. the system as claimed in claim 1, which is characterized in that the charging maintenance track is located at the coal-stopping wall upper end.

7. the system as claimed in claim 1, which is characterized in that coal yard Mechanical Fundamentals, the coal yard machinery are additionally provided in coal yard Basis is set on coal yard center.

8. system as claimed in claim 7, which is characterized in that top heap side-taking stacking machine is installed on the coal yard Mechanical Fundamentals On.

9. the system as claimed in claim 1, which is characterized in that the system is additionally provided with controller, for controlling the trolley Movement or stopping.

10. the system as claimed in claim 1, which is characterized in that the decline track is set on the working track and described fills Between track is repaiied in electric-examination, the monitoring trolley drops to the charging maintenance rail along the decline track from the working track Road is overhauled and/or is charged.