CN116380524A - Large-flow coal conveying belt sampling system - Google Patents

Large-flow coal conveying belt sampling system Download PDF

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Publication number
CN116380524A
CN116380524A CN202310264944.9A CN202310264944A CN116380524A CN 116380524 A CN116380524 A CN 116380524A CN 202310264944 A CN202310264944 A CN 202310264944A CN 116380524 A CN116380524 A CN 116380524A
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CN
China
Prior art keywords
dividing
coal
belt
module
sampling
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Pending
Application number
CN202310264944.9A
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Chinese (zh)
Inventor
武猛
李利慧
刘寿恩
郭妍妍
马立峰
崔加彬
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Guoneng Zhuhai Port Co ltd
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Guoneng Zhuhai Port Co ltd
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Priority to CN202310264944.9A priority Critical patent/CN116380524A/en
Publication of CN116380524A publication Critical patent/CN116380524A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chain Conveyers (AREA)

Abstract

The invention discloses a large-flow coal conveying belt sampling system, which is used for sampling the middle part of a belt of a port coal conveying device and comprises the following components: a control system, further comprising: sampling device, division device, collection device and bucket carry device. The sampling device is connected with the belt, and the sampling device is used for collecting coal samples conveyed on the belt; the dividing device is connected with the sampling device and divides the coal sample collected by the sampling device; the collecting device is connected with the dividing device and is used for collecting a part of the coal samples divided by the dividing device; the bucket lifting device is connected with the dividing device, and the bucket lifting device conveys the other part of the coal samples divided by the dividing device back to the belt. The system can meet the sampling requirement of a large-flow coal conveying belt, and is compact in structure and high in operation stability.

Description

Large-flow coal conveying belt sampling system
Technical Field
The invention relates to a coal conveying belt sampling system, in particular to a high-flow coal conveying belt sampling system.
Background
In port coal handling systems, coal is typically transported by a belt. To improve the conveying efficiency, a large-bandwidth, high-belt-speed belt conveyor is generally used. The belt conveyor of the port is generally more than 2 meters, and the belt speed can reach 4.5-5.0 meters/s. The conveying capacity can reach 5000T/H-10000T/H. Compared with the traditional coal conveying belt of the thermal power plant, the belt speed of the port coal conveying belt is 2 times of that of the power plant coal conveying belt. The conveying capacity is several times of the conveying capacity of the power plant. Therefore, the belt middle sampling machine for the power plant cannot meet the use requirement of port coal conveying middle sampling.
Disclosure of Invention
According to an embodiment of the present invention, there is provided a large-flow coal conveying belt sampling system for sampling a middle part of a belt of a port coal conveying device, including: the control system is used for controlling the operation of the whole system and further comprises: sampling device, division device, collection device and bucket carry device. The sampling device is connected with the belt, and the sampling device is used for collecting coal samples conveyed on the belt; the dividing device is connected with the sampling device and divides the coal sample collected by the sampling device; the collecting device is connected with the dividing device and is used for collecting a part of the coal samples divided by the dividing device; the bucket lifting device is connected with the dividing device, and the bucket lifting device conveys the other part of the coal samples divided by the dividing device back to the belt.
Further, the sampling device is in sealing connection with the belt of the coal conveying device and is used for preventing coal from splashing in the sampling process.
Further, the sampling device includes: the pair of samplers are distributed along the extending direction of the belt.
Further, the included angle between the cutting direction of the shovel head of the sampler and the coal flow direction is (0 degrees, 90 degrees).
Further, the cutting direction of the shovel head opening is opposite to the coal flow direction.
Further, a shovel head counterweight is arranged on the sampler.
Further, the dividing device includes: a primary dividing belt conveyor and a dividing module; the primary dividing belt conveyor is respectively connected with the sampling module and the dividing module, and the primary dividing belt conveyor transmits the coal samples collected by the sampling device to the dividing module; the output end of the dividing module is respectively connected with the collecting device and the bucket lifting device, and the dividing module conveys one part of the coal sample to the collecting device and the other part to the bucket lifting device.
Further, the division module includes: and after manual detection, the coal sample with normal humidity is transmitted to the first division module by the primary division belt conveyor and is divided by the first division module.
Further, the division module further comprises: and the second shrinkage dividing module is used for conveying the coal samples with high humidity to the second shrinkage dividing module by the primary shrinkage dividing belt conveyor after manual detection, and carrying out shrinkage dividing by the second shrinkage dividing module.
Further, the division module includes: the first crusher is connected with the primary dividing belt conveyor, and the other part of the coal sample is crushed by the first crusher and conveyed to the bucket elevator.
Further, the first division module includes: the first divider is connected with the primary dividing belt conveyor and divides the coal sample with normal humidity.
Further, the first division module further includes: the second crusher, the second-stage dividing belt conveyor and the second divider; the second crusher is respectively connected with the first divider and the second divider belt conveyor, and the second crusher crushes coal samples with normal humidity. The method comprises the steps of carrying out a first treatment on the surface of the The second-stage dividing belt conveyor is respectively connected with the second divider and the bucket lifting device, and transmits one part of crushed coal samples to the second divider and the other part to the bucket lifting device; the coal sample transferred to the second divider is divided and transferred to a collection device.
Further, the second division module includes: the third divider is connected with the primary dividing belt conveyor and divides the coal sample with high humidity; after the division is completed, the third divider conveys the coal sample to a collection device.
Further, the collecting device includes: the first collecting module is connected with the first dividing module.
Further, the collecting device further comprises: the second collecting module is connected with the second dividing module.
Further, the method further comprises the following steps: the coal flow weighing device is electrically connected with the control system and is connected with the coal conveying device; the coal flow weighing device detects the coal flow on the coal conveying device and transmits the detection result to the control system.
The large-flow coal conveying belt sampling system provided by the embodiment of the invention can meet the sampling requirement of a large-flow coal conveying belt, and is compact in structure and high in operation stability.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the technology claimed.
Drawings
FIG. 1 is a layout diagram according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sampling device according to an embodiment of the present invention;
FIG. 3 is a workflow diagram according to an embodiment of the invention;
FIG. 4 is a schematic view of the positional relationship of the cutting direction of the shovel head and the coal flow direction;
in fig. 4, α represents an angle between the cutting direction of the shovel head and the coal flow direction.
Description of the embodiments
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, which further illustrate the present invention.
Firstly, a large-flow coal conveying belt sampling system according to an embodiment of the invention will be described with reference to fig. 1 to 4, and is used for sampling the middle of a port coal conveying belt, and the application scene is wide.
As shown in fig. 1 to 4, the system for sampling a large-flow coal conveying belt according to the embodiment of the present invention is used for sampling the middle part of a belt 6 of a port coal conveying device, and includes: the control system is used for controlling the operation of the whole system and further comprises: a sampling device 1, a dividing device 2, a collecting device 3 and a bucket lifting device 4. The sampling device 1 is connected with the belt 6, and the sampling device collects coal samples conveyed on the belt 6; the division device 2 is connected with the sampling device 1, and the division device 2 divides the coal sample collected by the sampling device 1; the collecting device 3 is connected with the dividing device 2, and the collecting device 3 collects a part of the coal samples divided by the dividing device 2; the bucket lifting device 4 is connected with the dividing device 2, and the bucket lifting device 4 conveys the other part of the coal sample divided by the dividing device 2 back to the belt 6. Through the mutual cooperation of each device, sampling efficiency has been improved.
Specifically, as shown in fig. 1, in the present embodiment, the sampling device 1 is in sealing connection with the belt 6 of the coal conveying device, so as to prevent coal from splashing during the sampling process.
Specifically, as shown in fig. 1 to 2, in this embodiment, the sampling device 1 includes: the pair of samplers 11, the pair of samplers 11 are distributed along the extending direction of the belt, and only one sampler 11 works in a normal working state by one.
Further, as shown in fig. 1-2 and 4, in this embodiment, the included angle between the cutting direction of the shovel head 111 of the sampler 11 and the coal flow direction is (0 °,90 °), so as to facilitate collection of the coal sample.
Further, as shown in fig. 1-2 and 4, in this embodiment, the cutting direction of the opening of the shovel head 111 is opposite to the coal flow direction, so as to collect the coal sample.
Further, as shown in fig. 2, in this embodiment, the weight 112 of the shovel head 111 is mounted on the sampler 11, so that vibration generated when the shovel head 111 stops is effectively reduced, and the movement of the device is smoother.
Specifically, as shown in fig. 1 and 3, in the present embodiment, the dividing device 2 includes: a primary dividing belt conveyor 21 and a dividing module; two inlets are arranged at the upper end of the primary dividing belt conveyor 21 and correspond to the output ends of the two samplers 11 respectively, the samplers 11 transmit collected coal samples to the primary dividing belt conveyor 21 from the corresponding inlets, and then the primary dividing belt conveyor 21 transmits the coal samples to the dividing module; the output end of the dividing module is respectively connected with the collecting device 3 and the bucket lifting device 4, and the dividing module transmits one part of coal samples to the collecting device 3 and the other part to the bucket lifting device 4.
Further, as shown in fig. 1 and 3, in this embodiment, the dividing module includes: and after the first shrinkage dividing module is manually detected, the coal sample with normal humidity is conveyed to the first shrinkage dividing module by the primary shrinkage dividing belt conveyor 21 and is subjected to shrinkage dividing by the first shrinkage dividing module. At this point, the first shrinkage module transfers a portion of the coal sample to the collection device 3 and another portion to the bucket elevator 4.
Further, as shown in fig. 1 and 3, in this embodiment, the division module further includes: and after manual detection, the coal sample with high humidity is conveyed to the second division module by the primary division belt conveyor 21 and is divided by the second division module. The second shrinkage module conveys a portion of the coal sample to the collection device 3 and another portion to the bucket elevator 4.
Further, as shown in fig. 1 and 3, in this embodiment, the dividing module includes: the first crusher 23, the first crusher 23 and the primary dividing belt conveyor 21 are connected, and the other part of the coal sample is crushed by the first crusher 23 as waste materials and is transmitted to the bucket elevator 4, so that the coal sample is convenient to transport after being crushed.
Further, as shown in fig. 1 and 3, in this embodiment, the first division module includes: the first divider 25, the first divider 25 is connected with the primary dividing belt 21, and the first divider 25 divides the coal sample with normal humidity.
Further, as shown in fig. 1 and 3, in this embodiment, the first division module further includes: a second crusher 24, a second stage dividing belt 22 and a second divider 26; preferably, the second crusher 24 is a double-rotor crusher, in operation, under the drive of a double motor, two sets of rotors connected in series simultaneously rotate at a high speed, materials are crushed in an inner cavity of the crusher through an upper rotor and immediately crushed by a hammer head of a lower rotor rotating at a high speed, the materials in the inner cavity collide with each other at a high speed and are crushed with each other, the effects of hammering powder and material powder are achieved, a screen bar does not exist at a discharge hole, coal blockage is prevented, and the efficiency is high. The second crusher 24 is engaged with the first divider 25 and the second-stage dividing belt 22, respectively, and the second crusher 24 crushes the coal sample divided by the first divider 25. The second-stage dividing belt conveyor 22 is respectively connected with the second divider 26 and the bucket elevator 4, and the second-stage dividing belt conveyor 22 conveys one part of crushed coal samples to the second divider 26 and the other part of crushed coal samples to the bucket elevator 4 as waste materials; the coal sample transferred to the second divider 26 is divided and transferred to the collection device 3.
Further, as shown in fig. 1 and 3, in this embodiment, the second division module includes: and a third divider 27, wherein the third divider 27 is connected with the primary dividing belt conveyor 21, and the third divider 27 divides the coal sample with high humidity. A part of the coal sample with high humidity is divided by a third divider 27 and is transmitted to the collecting device 3; the other part which is not divided is crushed by the primary dividing belt conveyor 21 as a waste material by the first crusher 23 and then transferred to the bucket elevator 4.
Further, as shown in fig. 1 and 3, in the present embodiment, the collecting device 3 includes: the first collecting module 31, preferably, the first collecting module 31 is: packaging the collector; the first collection module 31 is engaged with the first division module for collecting the final coal sample divided by the first division module.
Further, as shown in fig. 1 and 3, in the present embodiment, the collecting device 3 further includes: the second collection module 32, preferably, the second collection module 32 is: a large moisture bypass collection device 3; the second collection module 32 is engaged with the second dividing module for collecting the coal samples divided by the second dividing module.
Further, as shown in fig. 1 and 3, in the present embodiment, the bucket elevator 4 includes: the bucket elevator is preferably a chain transmission bucket elevator; the bucket elevator adopts chain transmission, has high efficiency and is not easy to slip. Good sealing performance and less environmental pollution. Convenient operation and maintenance and few wearing parts. The use cost is low, and the use cost is extremely low due to energy conservation and less maintenance.
Specifically, as shown in fig. 1, in this embodiment, the method further includes: the coal flow weighing device 5 is electrically connected with the control system and is connected with the coal conveying device; the coal flow weighing device 5 detects the coal flow on the coal conveying device and transmits the detection result to the control system, and the control system can enable the collector to start working.
In use, the system is started and suspended by the coal flow weighing device 5 detecting the coal flow on the coal conveyor belt. When coal passes over the belt 6, the system is started according to the system design. The coal flow on the coal conveying belt 6 is subjected to cutting type full-section sampling through the samplers 11, two samplers 11 are used, one sampler 11 is used for one, and only one sampler 11 works in a normal working state.
The humidity of the belt coal conveying is manually judged, and the belt coal conveying device belongs to normal-humidity coals or coals with larger moisture content. If the coal is in the normal range of humidity. The working flow is as follows: the coal sample collected by the primary sampler 11 enters a second crusher 24 for crushing after passing through a first divider 25 of a primary dividing belt conveyor 21, the crushed coal sample enters a secondary dividing belt conveyor 22, the coal sample after passing through an intermediate divider enters a packaging collector, the waste coal sample after passing through a discharge hole at the end part of the secondary dividing belt conveyor 22 is output from the discharge hole at the end part, enters a lower feed inlet of a chain transmission bucket elevator, and returns to a coal conveying belt 6 through the chain transmission bucket elevator; the waste coal sample output through the waste port at the end part of the primary shrinkage belt conveyor 21 enters the first crusher 23 for crushing, enters the upper feed port of the chain transmission bucket elevator after crushing, and returns to the coal conveying belt 6 through the transmission of the chain transmission bucket elevator.
Manually judging the humidity of the belt coal conveying, and when the belt coal conveying belongs to the coal with high humidity, entering a large-moisture bypass collecting device 3 after passing through a wet coal path divider in the middle of a primary dividing belt conveyor 21; the waste coal sample output through the waste port at the end part of the primary shrinkage belt conveyor 21 enters a waste crusher for crushing, enters the upper feed port of the chain transmission bucket elevator after crushing, and returns to the coal conveying belt 6 through the transmission of the chain transmission bucket elevator.
The large-flow coal conveying belt sampling system according to the embodiment of the invention is described above with reference to fig. 1-4, can adapt to the sampling requirement of a large-flow coal conveying belt, and has high efficiency, time saving and labor saving; meanwhile, the system has compact structure and high operation stability.
It should be noted that in this specification the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (10)

1. A high-flow coal conveyor belt sampling system for sampling the middle of a belt of a port coal conveyor, comprising: the control system is used for controlling the operation of the whole system, and is characterized by further comprising:
the sampling device is connected with the belt and is used for collecting coal samples conveyed on the belt;
the dividing device is connected with the sampling device and divides the coal sample collected by the sampling device;
the collecting device is connected with the dividing device and is used for collecting a part of the coal samples after dividing by the dividing device;
and the bucket lifting device is connected with the dividing device, and the bucket lifting device conveys the other part of the coal sample after dividing by the dividing device back to the belt.
2. The high flow coal conveyor belt sampling system of claim 1, wherein the sampling device comprises: the pair of samplers are distributed along the extending direction of the belt, and the included angle between the cutting direction of the shovel head of the sampler and the coal flow direction is (0 degrees, 90 degrees).
3. The high flow coal conveyor belt sampling system of claim 2, wherein the shovel head opening has a cutting direction opposite to the coal flow direction, and wherein the shovel head counterweight is mounted on the sampler.
4. The high flow coal conveyor belt sampling system of claim 1, wherein the dividing means comprises: a primary dividing belt conveyor and a dividing module;
the primary dividing belt conveyor is respectively connected with the sampling module and the dividing module, and the primary dividing belt conveyor transmits the coal samples collected by the sampling device to the dividing module;
the output end of the shrinkage and division module is respectively connected with the collecting device and the bucket lifting device, and the shrinkage and division module transmits one part of the coal sample to the collecting device and the other part to the bucket lifting device.
5. The high flow coal conveyor belt sampling system of claim 4, wherein the dividing module comprises: and after the first shrinkage dividing module is manually detected, the coal sample with normal humidity is transmitted to the first shrinkage dividing module by the primary shrinkage dividing belt conveyor and is subjected to shrinkage dividing by the first shrinkage dividing module.
6. The high flow coal conveyor belt sampling system of claim 5, wherein the dividing module further comprises: and the second shrinkage dividing module is used for conveying the coal sample with high humidity to the second shrinkage dividing module by the primary shrinkage dividing belt conveyor after manual detection, and carrying out shrinkage dividing by the second shrinkage dividing module.
7. The high flow coal conveyor belt sampling system of claim 6, wherein the dividing module comprises: a first crusher and a third divider; the first crusher is connected with the primary dividing belt conveyor, and the other part of the coal sample is crushed by the first crusher and is transmitted to the bucket elevator; the third divider is connected with the primary dividing belt conveyor, and divides the coal sample with high humidity; after the division is completed, the third divider conveys the coal sample to the collection device.
8. The high flow coal conveyor belt sampling system of claim 7, wherein the first dividing module further comprises: the device comprises a first divider, a second crusher, a second-stage dividing belt conveyor and a second divider;
the first divider is connected with the primary dividing belt conveyor, and divides the coal sample with normal humidity;
the second crusher is respectively connected with the first divider and the second divider belt conveyor, and the second crusher crushes the coal samples with normal humidity;
the second-stage dividing belt conveyor is respectively connected with the second divider and the bucket lifting device, and transmits one part of the crushed coal samples to the second divider and the other part to the bucket lifting device;
the coal sample transferred to the second divider is divided and transferred to the collection device.
9. The high flow coal conveyor belt sampling system of claim 6, wherein the collection means comprises: a first collection module and a second collection module; the first collecting module is connected with the first dividing module; the second collecting module is connected with the second dividing module.
10. The high flow coal conveyor belt sampling system of claim 1 or 2, further comprising: the coal flow weighing device is electrically connected with the control system and is connected with the coal conveying device; the coal flow weighing device detects the coal flow on the coal conveying device and transmits the detection result to the control system.
CN202310264944.9A 2023-03-20 2023-03-20 Large-flow coal conveying belt sampling system Pending CN116380524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310264944.9A CN116380524A (en) 2023-03-20 2023-03-20 Large-flow coal conveying belt sampling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310264944.9A CN116380524A (en) 2023-03-20 2023-03-20 Large-flow coal conveying belt sampling system

Publications (1)

Publication Number Publication Date
CN116380524A true CN116380524A (en) 2023-07-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310264944.9A Pending CN116380524A (en) 2023-03-20 2023-03-20 Large-flow coal conveying belt sampling system

Country Status (1)

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CN (1) CN116380524A (en)

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