KR101801535B1 - Coal crushing type automatic sampling system - Google Patents

Abstract

The present invention relates to a coal crushing type automatic sampling system, which comprises: a coal crushing type sampling system in which a coal sample is taken, crushed, pressurized, and placed in a sample container, and the sampled coal sample is transferred to the outside; a controller controlling the coal crushing type sampling system; and an HMI system inputting a control value for controlling the coal crushing type sampling system of the controller and monitoring the state of the coal crushing type sampling system.

Description

[0001] COAL CRUSHING TYPE AUTOMATIC SAMPLING SYSTEM [0002]

An embodiment of the present invention relates to a coal pulverizing type automatic sampling system.

Most of the coal-fired power plants use coals of coal of many products. Therefore, in order to efficiently burn coal efficiently and treat smokes smoothly, careful operation management is required according to the nature and condition of coal.

Generally, coal is collected and stacked by type, and discharged and mixed according to the result of analysis for each product. They are stored in several coal bunkers one by one and are planned and dispatched to match the burning consumption of the boiler. At this time, the analysis of the coal determines the average quality of the lot according to the collected and discharged coal, and it takes about 4 days or longer until the analysis result is obtained from the sampling.

Therefore, the operation management is inevitable after that period, and the nature and condition of the coal is larger than that of the heavy oil or LNG even if the same product or lot is the same. There is a need for a method and system for more efficient and quicker sampling and analysis of spent coal to be metered and supplied from the coal storage to the boiler to perform proper operation management.

For this purpose, in recent years, rapid analysis of coal and the development of instruments have been progressed, and accordingly, it is required to develop a machine for sampling consumed coal and pulverizing the sample in a short time.

The present invention has been conceived to solve the above-described problems, and it is an object of the present invention to provide a coal grinding type automatic sampling system, in which a driver can directly manipulate operating parameters to manipulate coal, manage and monitor coal, By integrating storage and cleaning, we can implement all the steps of sampling in a fully automated sequence, control and monitor it, and reduce the manpower required for sampling and reduce unnecessary time for sampling.

The present invention is intended to enable the reuse of the remaining coal samples.

A coal pulverizing type automatic sampling system according to the present invention for solving the above-mentioned problems includes a coal grinding type sampling system for collecting and pulverizing and pressurizing a coal sample into a sample container, and transferring the sampled coal sample to the outside; A controller for controlling the coal grinding type sampling system; And an HMI system for inputting a control value for controlling the coal grinding type sampling system of the controller and monitoring the state of the coal grinding type sampling system.

According to another embodiment of the present invention, the coal grinding type sampling system includes: a first sampler for sampling a coal sample falling from a coal conveying conveyor; A first supply unit for moving the sampled coal sample; A crusher for crushing the coal sample transferred through the first supply unit; A plunger for pressurizing the pulverized coal sample; A second feeder for moving the pulverized and pressurized coal sample; A can collector including a sample vessel; A second sampler for containing a coal sample moved on the second supply unit into a sample container of the can collector; And a bucket elevator for transferring the remaining coal samples not contained in the sample vessel.

According to another embodiment of the present invention, the first sampler is controlled by the controller according to a control value inputted in the HMI system, to collect a coal sample falling from the coal conveying conveyor, and the second sampler The coal sample being controlled by the controller according to the control value input from the HMI system and being moved on the second supply unit, into the sample container of the can collector.

According to another embodiment of the present invention, the can collector can move the new sample container to the coal sample loading position when the coal sample is inputted into the sample container.

According to another embodiment of the present invention, the HMI system may further include a number of sampling vessels used in the can collectors, a sampling execution period by time or weight of the first and second samplers, sampling of the coal samples of the first sampler, Thereafter, the time of arrival of the sampled coal sample to the second sampler, the number of operations of the first sampler, the number of coal samplings of the first and second samplers, the number of operations of the second sampler And the cleaning time of the coal grinding type sampling system.

According to the embodiment of the present invention, the operator can directly operate the coal sampling operation, manage and monitor the coal by controlling the operation parameters directly by the coal grinding type automatic sampling system, and can collect, grind, transport, store and clean By integrating all the processes of the sampling by sequence, it can control and monitor it automatically, thereby reducing the manpower required for sampling and unnecessary time for sampling.

The coal pulverizing type automatic sampling system according to the embodiment of the present invention can reuse the remaining coal samples.

1 is a conceptual diagram of a coal pulverizing type automatic sampling system according to an embodiment of the present invention.
2 is a view for explaining a configuration of a coal grinding type sampling system according to an embodiment of the present invention.
3 to 5 are views for explaining an HMI system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention. In addition, the size of each component in the drawings may be exaggerated for the sake of explanation and does not mean a size actually applied.

FIG. 1 is a conceptual diagram of an automatic coal sampling type coal sampling system according to an embodiment of the present invention, and FIG. 2 is a view for explaining a configuration of a coal grinding type sampling system according to an embodiment of the present invention.

Hereinafter, a configuration of a coal pulverizing type automatic sampling system according to an embodiment of the present invention will be described with reference to FIG.

1, a coal pulverizing type automatic sampling system according to an embodiment of the present invention includes a coal grinding type sampling system 110, a controller 130, and an HMI system (Human Machine Interface System) do.

The coal grinding type sampling system 110 according to an embodiment of the present invention collects a sample of coal to be sampled and analyzed and grinds and pressurizes the sampled coal sample into a sample container, To the outside.

A controller 130 is used to control the coal grinding type sampling system 110. The controller 130 controls the coal grinding type sampling system 110 according to a sequence based on a control value input through the HMI system 150, Type sampling system 110 as shown in FIG.

The HMI system 150 receives control values for controlling the coal grinding type sampling system 110 of the controller and monitors the state of the coal grinding type sampling system 110.

Hereinafter, the configuration of the coal grinding type sampling system according to one embodiment of the present invention will be described with reference to FIG.

2, the coal grinding type sampling system according to an embodiment of the present invention includes a first sampler 102, a first supply unit 104, a crusher 105, a plunger 106, A can collector 107, a can collector 108, a second sampler 110, and a bucket elevator 111. [

The first sampler 102 is installed at the dropping portion of the coal conveying conveyor 101 to collect a coal sample falling from the coal conveying conveyor 101.

At this time, the first sampler 102 can be controlled by the controller 130 according to the control value input from the HMI system 150 to collect the coal sample falling from the coal conveying conveyor 101.

The first supply part 104 moves the sampled coal sample.

More specifically, a coal sample is introduced into the first sampler 102 every time the first sampler 102 moves forward or backward once, and the coal sample passes through the dust door at the bottom of the first sampler 102, when the dust door 103 is opened, it falls to the first supply part 104 provided below the first sampler 102.

The crusher 105 crushes the coal sample transferred through the first feeder 104. At this time, an inverter is installed in the first feeder 104 to adjust the speed of the coal sample to be supplied to the crusher 105 .

The plunger 106 presses the pulverized coal sample in the pulverizer 105 and the pressurized coal sample is transferred to the lower second feeder 107. [

The second sampler 110 puts the coal sample moving on the second supply part 107 into the sample container 109 of the can collector 108.

The second sampler 110 is controlled by the controller 140 based on the control value input from the HMI system 150 so that the coal sampler moving on the second supply unit 107 can be moved to the can collectors 108, (Can) 109 of the sample container (can).

The can collector 108 includes a plurality of sample containers can 109. The can collector 108 is controlled by the controller 130 according to a value input from the HMI system 150, It is possible to store the coal sample in the sample container (can 109).

When the sample container (can 109) is full, the empty sample container (can 109) can hold a coal sample. When all the sample containers (can 109) of the can collector 108 are filled , And the remaining sample is sent back to the coal conveying conveyor to be cleaned.

That is, the coal sample remaining in the sample container (can 109) is supplied to the coal conveyance through the lower coal conveyor 112 through the bucket elevator 111.

More specifically, when the primary sampler 102 and the secondary sampler 110 have completed the operation by the control value input from the HMI system 150 as the monitoring facility, the sample container can: 109) is filled with the sample. The amount of the sample to be supplied to the sample container can be adjusted through setting values of the first and second samplers 102 and 110 of the HMI system 150. When the sample is completely supplied, 108 is rotating, an empty sample container (can 109) moves to the sample injection position and is ready to receive the coal sample continuously.

The sampling time of the sample starts with the time set in the HMI system 150 as the monitoring facility or the cumulative value (Ton / h) of the belt scale installed in the conveying conveyor 101, Can be selected by a selector switch (Selector Switch).

When the sample is filled up by the number of sample containers (can) 109 set in the HMI system 150, the coal grinding type sampling system 110 is in the cleaning state and the remaining coal samples are collected in the bucket elevator 111 And transferred to a silo through a lower coal conveying conveyor 112 to be reused.

When the cleaning is completed, the first sampler 102, the crusher 105, the plunger 106, the second supply unit 107, and the bucket elevator 111 are stopped in this order. The can collector 108 is automatically moved to the home position and the sample container can 109 is recovered from the can collector 108 to complete the operation.

As described above, in the coal pulverizing type automatic sampling system according to the present invention, the unit operation from the sampling of the coal sample to the cleaning and the can collector 108 is performed through the HMI system 150, And the controller 130, which is implemented by a programmer logic control, to automate all operations.

FIGS. 3 to 5 are views for explaining the HMI system according to an embodiment of the present invention. More specifically, FIG. 3 to FIG. 5 are diagrams for explaining an HMI system capable of monitoring the control of the coal grinding type sampling system and the operation state, Fig.

3, the main screen provided by the HMI system 110 according to an exemplary embodiment of the present invention includes an automatic start and stop of the coal grinding type sampling system 110, The number of cycles of the first sampler, the number of revolutions of the second sampler, the operation delay time of the second sampler, the number of cycles of the cleaning (the number of cycles of the first sampler, cleaning time can be set and the current value can be monitored.

In addition, the main screen provided by the HMI system 110 displays the current progress of each constituent element in a flow chart format when the coal grinding type sampling system 110 is automatically operated, If the "SAMPLER INFORMATION" button 301 is selected, submenus such as "INPUT PASSWORD", "PARAMETER SETTING", and "FAILURE CHEK" can be provided.

4, the HMI system 110 according to an exemplary embodiment of the present invention is capable of setting system parameters (system parameter settings), and the number of sample containers 401 used in the can collectors 401, A cycle 402 for performing a sampling operation with respect to time of one or two samplers, a sampling execution cycle 403 for each weight of the first and second samplers, The number of times of operation of the first sampler 405, the number of times of sampling of the first and second samplers 406, the number of operations of the second sampler 407 relative to the first sampler 407, The cleaning time 408 of the sampling system can be set.

More specifically, referring to FIG. 4, as the number of sample containers 401 used in the can collectors, the number of the sample containers can be input into the can collectors, When the operator inputs the time as a sampling period as a cycle 402 of the execution of the sampling by time of two samplers, sampling is performed once at the input time, and as the sampling execution period 403 by weight, Sampling is performed when the measured weight on the belt scale reaches the input value.

In addition, as the time for the sampled coal sample to reach the second sampler after the sampling of the coal sample of the first sampler (404), the coal sampled after the operation of the first sampler is passed through the crusher, The number of times the first sampler is operated in one operation is input as the number of operations 405 of the first sampler 405 and the number of times of sampling of the first and second samplers (407) of the first sampler and the number of operations (407) of the second sampler with respect to the first sampler are set to be one cycle when the first sampler is operated and the second sampler is operated, The number of times the second sampler is operated after the first sampler is operated once and the automatic start time is set as the cleaning time 408 of the coal grinding type sampling system, When the coal sample to exit the container (it can) are all full, for cleaning (cleaning) of the sample in a pulverized coal type sampling system, and wherein performing the cleaning by the input time and the stop of the coal grinding-type sampling system sequentially.

When a system failure check screen is selected on the screen provided by the HMI system, as shown in FIG. 5, all the faults of the coal grinding type sampling system are displayed on the main page, a fault can be displayed in color. Through the main page, it is indicated which sample container can is full of coal, how many times it is being sampled in the sample container, Panel, and the number of times the second sampler has operated per sample can, and the like.

Therefore, according to the embodiment of the present invention, the operator can directly operate the coal sampling operation, manage and monitor the coal by controlling the operation parameters directly by the coal grinding type automatic sampling system, and can collect, grind, transport, store and clean ), The entire process of sampling is implemented by a sequence in a fully automatic manner, and control and monitoring can reduce unnecessary manpower required for sampling and unnecessary time for sampling.

In addition, the coal pulverizing type automatic sampling system according to the embodiment of the present invention can reuse the remaining coal samples.

In the foregoing detailed description of the present invention, specific examples have been described. However, various modifications are possible within the scope of the present invention. The technical spirit of the present invention should not be limited to the above-described embodiments of the present invention, but should be determined by the claims and equivalents thereof.

101: Coal conveying conveyor
102: first sampler
103: Dust door
104:
105: crusher
106: plunger
107:
108: can collector
109: Sample container
110: second sampler
111: Bucket elevator
112: Lower coal conveying conveyor
110: Coal crushing sampling system
130: controller
150: HMI system

Claims (5)

A coal grinding type sampling system in which a coal sample is taken, pulverized and pressurized, placed in a sample container, and the sampled coal sample is transferred to the outside;
A controller for controlling the coal grinding type sampling system; And
And an HMI system for inputting a control value for controlling the coal grinding type sampling system of the controller and monitoring the state of the coal grinding type sampling system,
In the coal grinding type sampling system,
A first sampler for collecting a coal sample falling from the coal conveyance conveyor;
A first supply unit for moving the sampled coal sample;
A crusher for crushing the coal sample transferred through the first supply unit;
A plunger for pressurizing the pulverized coal sample;
A second feeder for moving the pulverized and pressurized coal sample;
A can collector including a plurality of sample vessels;
A second sampler for containing a coal sample moved on the second supply unit into a sample container of the can collector; And
And a bucket elevator for transferring the remaining coal samples not contained in the sample vessel,
Wherein the first sampler comprises:
A controller for controlling the control value input from the HMI system to collect a coal sample falling from the coal conveying conveyor,
Wherein the second sampler comprises:
And a control unit for controlling the control unit to control the operation of the coal collecting unit,
The can collector
Wherein a coal sample is sequentially introduced into the new sample container by moving a new sample container to a coal sample loading position when the charging of the coal sample into the selected one of the plurality of sample containers is completed.
delete delete delete The method according to claim 1,
The HMI system comprises:
The number of sample vessels used in the can collectors, the sampling execution period of each of the first and second samplers with respect to time or weight, the sampling of the coal samples of the first sampler, the sampling of the coal samples to the second sampler The number of operations of the first sampler, the number of operations of the first and second samplers, the number of operations of the second sampler with respect to the first sampler, and the cleaning time of the coal grinding type sampling system, Set up a coal-fired automatic sampling system.

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