CN-122017184-A - Automatic measurement and control system for series connection of coal quality analysis and coal preparation production line

CN122017184ACN 122017184 ACN122017184 ACN 122017184ACN-122017184-A

Abstract

The invention relates to the technical field of ash detection, and discloses an automatic measurement and control system for series connection of coal quality analysis and coal preparation production lines, which comprises a coal preparation conveying belt, a dynamic proportioning detection device and a monitoring terminal, wherein a time delay module calculates a time node when a new material batch arrives at the junction of the detection conveying belt and the dynamic proportioning detection device according to a batch of materials recorded in the monitoring terminal, a control terminal controls the detection conveying belt to convey clean coal of the new material batch in the coal preparation conveying belt to a weighing hopper in the dynamic proportioning detection device according to the time node, and the addition of the time delay module enables detection data of the dynamic proportioning detection device to correspond to batches of a coal preparation plant, so that a diverter disc design is introduced, the forms of clean coal sampling, filtering diversion and vibration promotion discharge are realized on the basis of not changing the existing working facilities and working environments of the coal preparation plant, and single acquisition quantity meets detection requirements, and the system is simple in structure and good in environmental adaptability.

Inventors

LI CHAO
SUN ZIQIANG
YUAN MINGPENG
GAO FENG
Kuang Dongsheng
CHEN KUN
LI GANG
MENG QINGYONG
Quan Jinxian
Mi Mingtao
CHEN SHUAI
LI JUNWEN
JIN LIANG

Assignees

淮北矿业股份有限公司临涣选煤厂

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (9)

1. An automatic measurement and control system for connecting coal quality analysis and a coal preparation production line in series comprises a coal preparation conveying belt (100), a dynamic proportioning detection device (300) and a monitoring terminal (400), and is characterized by further comprising a detection conveying belt (200), a time delay module (500) and a control terminal (600), wherein the coal preparation conveying belt (100) and the dynamic proportioning detection device (300) are communicated through the detection conveying belt (200), the time delay module (500) calculates the time node when a new material batch arrives at the junction of the detection conveying belt (200) and the dynamic proportioning detection device (300) according to a batch of material recorded in the monitoring terminal (400), and the control terminal (600) controls the detection conveying belt (200) to convey a refined coal of the new material batch in the coal preparation conveying belt (100) to a weighing hopper in the dynamic proportioning detection device (300) according to the time node and pulping and detecting by the dynamic proportioning detection device (300); The same batch of materials are positioned in the detection conveying belt (200), and are intermittently conveyed to a weighing hopper in the dynamic proportioning detection device (300) through the detection conveying belt (200), and the dynamic proportioning detection device (300) acquires a plurality of same batch detection data and prepares a data packet; The control terminal (600) controls the dynamic proportioning detection device (300) to prepare new batch data packets according to a time node when a new material batch arrives at the junction of the detection conveyor belt (200) and the dynamic proportioning detection device (300).
2. The system for automatically measuring and controlling the series connection of the coal quality analysis and the coal preparation production line according to claim 1, wherein the dynamic proportioning detection device (300) is further provided with a liquid collecting and weighing device, the dynamic proportioning detection device (300) controls the liquid collecting amount of the liquid collecting and weighing device on the basis of the weight of the clean coal detected by the weighing hopper, and when the solid-liquid quality ratio reaches a set value, the solid and the liquid are put into a mixing bin to be mixed, and the mixed slurry is conveyed to a detection end to detect a gray value.
3. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation production line according to claim 1, wherein a diverter disc (1) is rotatably connected above the coal preparation conveying belt (100), the diverter disc (1) is supported by a rotary support frame (2), a power component for driving the diverter disc (1) to rotate is mounted on the rotary support frame (2), the rotation axis of the diverter disc (1) is perpendicular to the conveying direction of the coal preparation conveying belt (100), and the diverter disc (1) is positioned at the junction of the coal preparation conveying belt (100) and the detection conveying belt (200).
4. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation production line according to claim 3 is characterized in that a through track (11) is arranged on the side face of the flow distribution disc (1), the through track (11) passes through the circle center of the flow distribution disc (1), a bucket (15) is fixedly connected to one end of the through track (11), a multi-surface cone cavity (14) is fixedly connected to the inner wall of the flow distribution disc (1) in a cavity away from the opening direction of the bucket (15), and a filter layer (12) is fixedly connected to the top face of the multi-surface cone cavity (14).
5. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation production line according to claim 4, wherein a turning plate (13) is rotatably connected to one side, far away from the bucket (15), of the filter layer (12), and the filter layer (12) and the turning plate (13) are matched and sealed at the open end of the polyhedral cone cavity (14).
6. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation production line according to claim 5, wherein a guide pipe (3) is fixedly connected to the side surface of the polyhedral cone cavity (14), the guide pipe (3) penetrates out of the side wall of the flow distribution disc (1), and the guide pipe (3) is positioned outside the coal preparation conveying belt (100).
7. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation production line according to claim 6, wherein when the open end of the guide pipe (3) is positioned at the lowest point, the open end of the guide pipe (3) is positioned above the detection conveyer belt (200).
8. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation line according to claim 6, wherein in the static state of the diverter tray (1), the guide pipe (3) and the bucket (15) are positioned above the turning plate (13), the guide pipe (3) and the bucket (15) are positioned at the same horizontal height, the opening end of the bucket (15) is downward, and the turning plate (13) is in an open state under the influence of gravity.
9. The automatic measurement and control system for the series connection of the coal quality analysis and the coal preparation production line according to claim 6, wherein the circumferential bottom end of the diverter disc (1) and the coal bed surface at the top of the coal preparation conveyor belt (100) have a distance in the static state of the diverter disc (1).

Description

Automatic measurement and control system for series connection of coal quality analysis and coal preparation production line Technical Field The invention relates to the technical field of ash detection, in particular to an automatic measurement and control system for series connection of coal quality analysis and coal preparation production lines. Background The coal ash detection is mainly applied to the coal preparation process, and aims to control the coal quality. The clean coal is obtained through the flotation process, and because the coal preparation factory is combined with the mining factory, in the continuous large-scale coal preparation process, the measurement frequency of the coal preparation factory is high, the continuous period is long, the clean coal of different batches needs to be detected, and the clean coal of the same batch needs to be detected for many times to obtain more accurate ash content values through average values. The gray value is obtained more accurately by adopting a pulping method to detect the coal slurry, but solid-liquid proportioning and mixing are needed, and continuous collection is not facilitated due to the fact that feeding cannot be continued in order to ensure accuracy in the quality detection and mixing process. And detect the clean coal that the ash content obtained and be located the conveyer belt of flotation coal, because the coal transportation production line of coal preparation factory is huge, if on the basis of the current transportation production line of coal preparation factory, branch series connection detection mechanism can carry out continuous intermittent type formula detection through computer control, and the size specification of conveyer belt is big in order to guarantee output in the coal preparation factory, consequently need establish ties little volume conveying structure on big specification conveyer belt and carry out the series connection process, just can satisfy process series connection demand. Disclosure of Invention The invention aims to provide an automatic measurement and control system for series connection of coal quality analysis and a coal preparation production line, which is suitable for a continuous and large-batch conveying system of a coal preparation plant, solves the problem that a detection mechanism cannot continuously process due to proportioning pulping, and realizes series connection matching with a conveying structure of the existing coal preparation plant. Through the addition of the time delay module, the detection data of the dynamic proportioning detection device corresponds to the batch of the coal preparation plant, the design of the flow distribution disc is introduced, the forms of clean coal sampling, filtering flow guiding and vibration emission promotion are realized on the basis of not changing the existing working facilities and working environments of the coal preparation plant, the single acquisition quantity meets the detection requirement, the structure is simple, the environmental adaptability is good, and the problems in the background technology are solved. In order to achieve the above purpose, the present invention provides the following technical solutions: The automatic measurement and control system comprises a coal preparation conveying belt, a dynamic proportioning detection device, a monitoring terminal, a detection conveying belt, a time delay module and a control terminal, wherein the coal preparation conveying belt and the dynamic proportioning detection device are communicated through the detection conveying belt, the time delay module calculates a time node when a new material batch arrives at the junction of the detection conveying belt and the dynamic proportioning detection device according to a batch of materials recorded in the monitoring terminal, and the control terminal controls the detection conveying belt to convey clean coal of the new material batch in the coal preparation conveying belt to a weighing hopper in the dynamic proportioning detection device according to the time node, and the dynamic proportioning detection device performs pulping detection; the same batch of materials are positioned in the detection conveying belt, and are intermittently conveyed to a weighing hopper in the dynamic proportioning detection device through the detection conveying belt, and the dynamic proportioning detection device acquires a plurality of same batch detection data and prepares a data packet; And the control terminal controls the dynamic proportioning detection device to prepare a new batch of data packet based on a time node when the new material batch reaches the junction of the detection conveyer belt and the dynamic proportioning detection device. The dynamic proportioning detection device is further provided with a liquid collecting and weighing device, the dynamic proportioning detection device controls the liquid collecting amount of the liquid collecting and wei