WO2007124647A1 - Analyseur de soufre doté d'un chargeur automatique d'échantillons - Google Patents

Analyseur de soufre doté d'un chargeur automatique d'échantillons Download PDF

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Publication number
WO2007124647A1
WO2007124647A1 PCT/CN2007/000696 CN2007000696W WO2007124647A1 WO 2007124647 A1 WO2007124647 A1 WO 2007124647A1 CN 2007000696 W CN2007000696 W CN 2007000696W WO 2007124647 A1 WO2007124647 A1 WO 2007124647A1
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WO
WIPO (PCT)
Prior art keywords
sample
platform
boat
control mechanism
sulfur analyzer
Prior art date
Application number
PCT/CN2007/000696
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English (en)
Chinese (zh)
Inventor
Xiande Zhu
Original Assignee
Xiande Zhu
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Filing date
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Application filed by Xiande Zhu filed Critical Xiande Zhu
Publication of WO2007124647A1 publication Critical patent/WO2007124647A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0042—SO2 or SO3
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00178—Special arrangements of analysers
    • G01N2035/00207—Handling bulk quantities of analyte

Definitions

  • the invention mainly relates to the field of measuring equipment for sulfur content in combustible materials, and particularly relates to a sulfur analyzer with an automatic sample feeding device.
  • the traditional analytical instrument for measuring the sulfur content of coal samples uses a large number of manual operation steps. Before the test, the coal samples need to be weighed manually. It is necessary to manually transfer the samples between the balance and the instrument, which requires not only a large amount of manpower and material resources. , labor intensity, low work efficiency, and prone to errors. The sample is affected by the external environment during the transfer process, resulting in inaccurate test accuracy. In addition, a large amount of data measured needs manual data processing, which is easy to cause human error, and is not suitable for online analysis and networked data processing and processing.
  • the single-hand manual sulfur analyzer uses the traditional test method, horizontal furnace body, manual weighing and stakeout. Although the input and output and data processing are done by computer control, because only one sample can be placed at a time, the operator can not leave the instrument, which reduces the work efficiency; and each time the sample is taken, it is necessary to open the sample mouth which may be hot due to high temperature. Cover, it is easy to get burnt.
  • the various automatic sulfur analyzers use a vertical furnace body, which can automatically sample and stake out samples. Each plate can be tested in various ways, but the bottom area of the sample boat is not large, so that the coal sample is not tiled, and the sulfur is from bottom to top. The sulfur is used to make the coal sample burn insufficiently, the test accuracy is not high, and the coal sample has a limited application range. Summary of the invention
  • the present invention provides a sulfur analyzer with an automatic sample feeding device capable of realizing sample delivery automation, and accurately positioning and working stably. Thereby, the overall working efficiency of the measuring device is improved, and the artificial error in the measuring work is reduced.
  • the solution proposed by the present invention is: a sulfur analyzer with an automatic sample feeding device, which comprises a furnace body fixed on a bottom plate, a control mechanism, and a sulfur amount sensing device sequentially connected through the pipeline, a drying device, a flow sensor and a circulation pump, wherein the furnace body is provided with a combustion tube, and the sulfur amount sensing device is connected to the tail end of the combustion tube through a pipeline, and the inlet end of the furnace body is provided with a sample feeding nozzle, wherein: The sample feeding nozzle of the furnace body is connected to an automatic sample feeding device, and the automatic sample feeding device comprises a conveying mechanism, a sample feeding mechanism and a positioning mechanism.
  • the conveying mechanism comprises a driven wheel fixed on the frame, a chain, a tensioning wheel, a driving wheel, a conveying platform and a conveying motor.
  • the chain is arranged on the driven wheel, the tensioning wheel and the driving wheel, and the chain is located above the conveying platform.
  • the transfer platform is on the same level as the sample platform placed on the sample feed nozzle, and the drive wheel is connected to the transfer motor, and the transfer motor is connected to the control mechanism and controlled by the control mechanism.
  • the conveying mechanism comprises a rotating disc, a rotating shaft and a stationary disc fixed on the frame, a conveying motor, the stationary disc is on the same horizontal plane as the sample platform placed on the feeding nozzle; the rotating disc is located above the stationary disc, and is transmitted
  • the motor is connected to the rotating disk via a rotating shaft, and the transmitting motor is connected to the control mechanism and controlled by the control mechanism.
  • the sample feeding mechanism comprises a sample sending rod, a traction plate, a rack and a sample feeding motor, and the sample sending motor is connected to the control mechanism and controlled by the control mechanism, and the output shaft of the sample sending motor is connected to the traction plate through the rack; One end is connected to the traction plate and the other end is connected to the sample platform.
  • the positioning device comprises a magnetic steel and a positioning sensor cooperating with the magnetic steel, the magnetic steel is located on the conveying mechanism, and the positioning sensor is connected to the control mechanism.
  • the sulfur analyzer further includes a rejecting device, which comprises a sample aspirating port and a collector, wherein the sample aspirating port is located at a front side of the sample feeding nozzle along the moving direction of the sample boat, and the collector is located below the discarded sample port and is fixed on the bottom plate. .
  • a rejecting device which comprises a sample aspirating port and a collector, wherein the sample aspirating port is located at a front side of the sample feeding nozzle along the moving direction of the sample boat, and the collector is located below the discarded sample port and is fixed on the bottom plate.
  • the sulfur analyzer further includes a sample boat detecting device, which comprises a detecting sensor and a detecting platform, and the detecting platform position is in the previous sample boat position of the sample feeding nozzle along the moving direction of the sample boat, and the sample boat on the sample feeding nozzle
  • the platform is on the same level, and the detection sensor is fixed on the detection platform and connected to the control mechanism.
  • the advantage of the invention lies in that -
  • the sulfur analyzer with the automatic sample feeding device of the invention is provided with an automatic sample feeding device beside the sample mouth of the furnace body, and the automatic sample feeding device can realize the full automation of the sample feeding operation, thereby improving the whole sulfur analyzer.
  • the work efficiency reduces the labor intensity of the workers, improves the test accuracy of the sulfur analyzer, and avoids errors that are easily caused by manual operation;
  • the sulfur analyzer with the automatic sample feeding device of the invention adopts a horizontal sample feeding mode, the airflow flows horizontally along the direction of the sample boat, and the bottom area of the sample boat is large, and the groove for containing the coal sample is shallow, so The coal sample is fully burned, and the test accuracy is improved;
  • the sulfur analyzer with the automatic sample sending device of the invention is provided with a sample discarding mechanism, which can automatically collect the burned sample boat into the sample collector, without manual removal by the operator, so as to collect the sample. Incorporating into the automation system to realize the unmanned operation of the instrument, improving the overall working efficiency of the sulfur analyzer, and avoiding the phenomenon that the sample is scattered everywhere, and will not cause pollution of the experimental loop;
  • the sample analyzer detecting device is provided on the sulfur analyzer with the automatic sample feeding device, and the device can effectively detect whether the fired sample boat automatically exits the combustion furnace, and only detects that the burned sample boat has exited the combustion.
  • the furnace will continue to deliver the sample, thus avoiding the failure caused by the old sample and the new sample, which solves the difficult problem in the automatic sample delivery device and improves the accuracy and stability of the automatic sample delivery.
  • DRAWINGS 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a schematic view showing the structure of the direction A in Figure 1;
  • Figure 3 is a schematic view showing the structure of the direction B in Figure 1;
  • Figure 4 is a schematic structural view of Embodiment 2 of the present invention.
  • Figure 5 is a schematic view showing the structure of the direction C in Figure 4.
  • Control mechanism Sulfur sensing device 3. Combustion tube
  • a sulfur analyzer with an automatic sample feeding device of the present invention comprises a furnace body 4 fixed to a bottom plate 19, a control mechanism 1 and a serial connection through a pipeline.
  • the sulfur amount sensing device 2, the drying device 17, the flow sensor 16 and the circulation pump 15, the furnace body 4 is provided with a combustion tube 3, and the sulfur amount sensing device 2 is connected to the tail end of the combustion tube 3 through a pipeline, the furnace body 4
  • the inlet end is provided with a sample feed nozzle 5, and the sample feed nozzle 5 of the furnace body 4 is connected to an automatic sample delivery device.
  • the automatic sample feeding device includes a chain conveying mechanism, a sample feeding mechanism, and a positioning device.
  • control mechanism 1 is for controlling the movement, positioning and data acquisition of the entire instrument;
  • sulfur amount sensing device 2 is for analyzing the sulfur content in the airflow extracted from the furnace body 4;
  • drying device 17 is for absorbing the moisture in the airflow
  • the flow sensor 16 is used to measure and control the magnitude of the air flow;
  • the circulation pump 15 is used to provide airflow power.
  • the chain-like conveying mechanism includes a driven wheel 91, a chain 92, a tension pulley 93, a driving wheel 94, a conveying platform 95, and a conveying motor 96, a driving wheel 94 and a driven machine.
  • the wheels 91 are respectively fixed to the second frame 14 and the first frame 8, the tensioning wheel 93 and the conveying platform 95 are fixed to the horizontal frame 13, and the chain 92 is wound around the driven wheel 91, the tensioning wheel 93 and the driving wheel. 94, the chain 92 is located above the transmission platform 95, the transmission platform 95 is on the same level as the sample platform 7 placed on the sample feeding nozzle 5, the driving wheel 94 is connected to the conveying motor 96, and the conveying motor 96 is connected to the control mechanism 1. And controlled by the control mechanism 1.
  • the sample feeding mechanism includes a sample sending rod 111, a pulling plate 112, a rack 113 and a sample sending motor 114.
  • the sample sending motor 114 is connected to the control mechanism 1 and controlled by the control mechanism 1.
  • the output shaft of the sample sending motor 114 passes through the rack 113 and The traction plate 112 is connected to each other; one end of the sample sending rod 111 is connected to the traction plate 112, and the other end is connected to the sample boat platform 7.
  • the end of the sample sending rod 111 connected to the sample boat platform 7 is in the shape of a hook.
  • the hook-shaped design allows the sample-feeding rod 111 to be hung in the connecting hole of the sample boat platform 7 and can be linearly moved with the sample-feeding platform 7.
  • the positioning device includes a magnetic steel 121 and a positioning sensor 122.
  • the magnetic steel 121 fixed on the chain 92 and the positioning sensor 122 fixed on the horizontal frame 13 cooperate to cause the chain 92 to stop for each movement of the boat. .
  • the positioning sensor 122 is connected to the control unit 1, transmits a trigger signal to the control unit 1, and controls the transmission mechanism by the control unit 1.
  • the sample boat 6 closest to the mouth of the furnace is pushed to the sample boat platform 7 on the sample feeding nozzle 5 every time a sample boat is moved.
  • the rejecting mechanism includes a rejecting port 101 and a collector 102.
  • the rejecting port 101 is located on the front side of the sample feeding nozzle 5 along the moving direction of the sample boat 6.
  • the collector 102 is located below the rejecting port 101 and is fixed to the bottom plate 19.
  • the sample boat detecting device includes a detecting sensor 181 and a detecting platform 182, wherein the detecting platform 182 is located in the previous sample boat position of the sample feeding nozzle 5 along the moving direction of the sample boat 6, and is fixed on the horizontal frame 13 with the sample feeding nozzle 5
  • the sample boat platform 7 on the same level is on the same level.
  • the detecting sensor 181 is fixed on the detecting platform 182 and connected to the control mechanism 1.
  • the detecting sensor 181 can employ a temperature sensor, a photoelectric sensor, a weight sensor, a mechanical sensor, a capacitance sensor and the like. In this embodiment, temperature sensing is employed.
  • the sample boat 6 after the coal sample is burned is sent to the detection platform 182
  • the surface temperature is high, and the sample boat 6 is judged by the temperature detecting function of the detecting sensor 181. Whether it was taken out. If it has been taken out, the next sample boat 6 is sent into the furnace body 4 for the next experiment, otherwise the alarm is interrupted to avoid the damage of the instrument caused by the sample boat 6 not being taken out.
  • the sample boat 6 which is called a good coal sample is placed from the furnace mouth of the furnace body 4 to each of the two straight rods on the chain 92, and It falls on the transport platform 95.
  • the transfer platform 95 is on the same level as the sample boat platform 7 placed on the sample feed nozzle 5, and the sample feed nozzle 5 is fixed to the furnace body 4 to be connected to the combustion tube 3 in the furnace body 4.
  • the transfer motor 96 is activated, and the chain 92 is advanced horizontally by the driving wheel 94, the driven wheel 91 and the tensioning wheel 93, so that the sample boat 6 sandwiched between the two straight rods of the chain 92 is horizontally advanced on the conveying platform 95.
  • the magnetic steel 121 fixed on the chain 92 and the positioning sensor 122 fixed on the horizontal frame 13 are mutually The cooperation acts to cause the chain 92 to stop moving for positioning.
  • the sample boat 6 closest to the mouth of the furnace body 4 is pushed to the sample boat platform 7 connected to the sample feeding nozzle 5 every time a sample boat is moved.
  • the sample sending motor 114 is started to drive the traction plate 112 and the sample sending rod 111 connected to the traction plate 112 to move left and right through the rack 113; wherein the sample sending rod 111 is hung with the sample boat platform 7 through the hook of the front end, thereby pushing the sample
  • the boat platform 7 holds the sample boat 6 into the combustion tube 3 in the furnace body 4 through the sample feed nozzle 5.
  • the coal sample in the sample boat 6 is burned at a high temperature, and the generated gas is withdrawn from the combustion tube 3, and sequentially passes through the sulfur amount sensing device 2, the drying device 17, the flow sensor 16 for measuring the sulfur content, and the circulation pump 15, and finally the exhaust gas. It is discharged.
  • the control unit 1 analyzes a large amount of data obtained from the sulfur amount sensing device 2 to obtain a final result.
  • the sample boat 6 is pulled by the sample boat 111 to take the sample platform 7 and take it out of the furnace body 4, and stops on the sample feeding nozzle 5.
  • the transport motor 96 is started again, and the chain 92 is advanced to a sample boat.
  • the sample boat 6 to be tested When the sample boat 6 to be tested is sent to the sample boat platform 7, the sample boat 6 at the end of the last experiment is pushed onto the detection platform 182.
  • the detecting sensor 181 detects whether the sample boat 6 has been taken out. After the end of the next experiment, the chain 92 pushes the sample boat 6 on the detection platform 182 from the reject port 101 into the collector 102. This completes the end of a complete experimental cycle.
  • the sulfur analyzer with the automatic sample feeding device of the present invention comprises a furnace body 4 fixed to the bottom plate, a control mechanism 1 and a sulfur amount sequentially connected through the pipeline.
  • the induction device 2, the drying device 17, the flow sensor 16 and the circulation pump 15, the furnace body 4 is provided with a combustion tube 3, and the sulfur amount sensing device 2 is connected to the tail end of the combustion tube 3 through a pipeline, and the inlet end of the furnace body 4
  • a sample feeding nozzle 5 is provided, and the sample feeding nozzle 5 of the furnace body 4 is connected to an automatic sample feeding device.
  • the automatic sample feeding device includes a disc conveying mechanism, a sample feeding mechanism, and a positioning device.
  • control mechanism 1 is for controlling the movement, positioning and data acquisition of the entire instrument;
  • sulfur amount sensing device 2 is for analyzing the sulfur content in the airflow extracted from the furnace body 4;
  • the drying device 17 is for absorbing the moisture in the airflow.
  • the flow sensor 16 is used to measure and control the magnitude of the air flow;
  • the circulation pump 15 is used to provide air flow power.
  • the disc transport mechanism includes a rotary disc 201, a stationary disc 202, a rotary shaft 203, and a transport motor 204.
  • the stationary disc 202 is fixed to the third frame 21 and is identical to the sample boat platform 7 placed on the sample feed nozzle 5.
  • the rotating disk 201 is located above the stationary disk 202, and the transmitting motor 204 is fixed to the fourth frame 22, and is coupled to the rotating disk 201 via the rotating shaft 203 to drive the rotating disk 201 to rotate about the rotating shaft 203.
  • the transfer motor 204 is connected to the control mechanism 1 and is controlled by the control mechanism 1.
  • the sample feeding mechanism includes a sample sending rod 111, a pulling plate 112, a rack 113 and a sample sending motor 114.
  • the sample sending motor 114 is fixed on the bottom plate, and the sample sending motor 114 is connected to the control mechanism 1 and controlled by the control mechanism 1, and the sample sending motor is provided.
  • the output shaft of 114 is connected to the traction plate 112 through the rack 113; one end of the sample rod 111 is connected to the traction plate 112, and the other end is connected to the sample platform 7.
  • the sample rod 111 and the sample platform are connected.
  • the connected end of the 7 is in the shape of a hook, and the hook-like design is hung in the connecting hole of the sample boat platform 7 and can be linearly moved by the sample platform 7.
  • Positioning means Including the magnet 121 and the positioning sensor 122, the magnet 121 fixed to the rotating disc 201 and the positioning sensor 122 fixed to the third frame 21 cooperate to cause the rotating disc 201 to stop moving for positioning.
  • the positioning sensor 122 is connected to the control unit 1, transmits a trigger signal to the control unit 1, and controls the transmission mechanism by the control unit 1.
  • the sample boat 6 closest to the mouth of the furnace is pushed to the sample boat platform 7 on the sample feeding nozzle 5 every time a sample boat is moved.
  • the rejecting mechanism includes a rejecting port 101 and a collector 102.
  • the rejecting port 101 is located on the front side of the sample feeding nozzle 5 along the moving direction of the sample boat 6.
  • the collector 102 is located below the rejecting port 101 and is fixed to the bottom plate 19.
  • the sample boat detecting device includes a detecting sensor 181 and a detecting platform 182, and the detecting platform 182 is located at a previous sample position of the sample feeding nozzle 5 along the moving direction of the sample boat 6, and is at the same level as the sample boat platform 7 on the sample feeding nozzle 5. on.
  • the detecting sensor 181 is fixed on the detecting platform 182 and connected to the control mechanism 1.
  • the detecting sensor 181 can employ a temperature sensor, a photoelectric sensor, a weight sensor, a mechanical sensor, a capacitance sensor and the like. In this embodiment, temperature sensing is employed.
  • the surface temperature is high, and it is judged by the temperature detecting function of the detecting sensor 181 whether the sample boat 6 is take out. If it has been taken out, the next sample boat 6 is sent into the furnace body 4 for the next experiment, otherwise the alarm is interrupted to avoid the damage of the instrument caused by the sample boat 6 not being taken out.
  • the sample boat 6 which is said to have a good coal sample is sequentially placed on the stationary disk 202 from the sample boat groove radially distributed along the rotary disk 201 at the furnace mouth.
  • the stationary disk 202 is on the same level as the sample boat platform 7 placed on the sample feeding nozzle 5, and the sample feeding nozzle 5 is fixed to the furnace body 4, and is connected to the combustion tube 3 in the furnace body 4.
  • the transfer motor 204 is activated, and the rotary disk 201 is rotated by the rotary shaft 203 in the clockwise direction, thereby pushing the sample boat 6 placed between the sample boat slots to advance clockwise on the stationary disk 202.
  • the magnetic steel 121 fixed to the rotary disk 201 and the positioning sensor 122 fixed to the third frame 21 cooperate to cause the rotary disk 201 to stop moving for positioning.
  • the sample boat 6 closest to the mouth of the furnace is pushed to the sample boat platform 7 on the sample feeding nozzle 5 every time a sample boat is moved.
  • the sample sending motor 114 is started to move to the left by the traction plate 112 and the sample sending rod 111 through the rack 113; wherein the sample sending rod 111 is hung with the sample boat platform 7 through the hook of the front end, thereby pushing the sample boat platform 7
  • the sample boat 6 enters the combustion tube 3 in the furnace body 4 through the sample feed nozzle 5.
  • the coal sample in the sample boat 6 is burned at a high temperature, and the generated gas is withdrawn from the combustion tube 3, and sequentially passes through the sulfur amount sensing device 2, the drying device 17, the flow sensor 16 for measuring the sulfur content, and the circulation pump 15, and finally the exhaust gas. It is discharged.
  • the control unit 1 analyzes a large amount of data obtained from the sulfur amount sensing device 2 to obtain a final result.
  • the sample boat 6 is pulled by the sample boat 111 to take the sample platform 7 and take it out of the furnace body 4, and stops on the sample feeding nozzle 5.
  • the transport motor 204 is started again, pushing the sample boat 6 forward to move a sample boat, and while the sample boat 6 to be tested is sent to the sample boat platform 7, the sample boat 6 at the end of the previous experiment is pushed to the test.
  • the detection sensor 181 detects whether the sample boat 6 has been taken out.
  • the rotary disk 201 pushes the sample boat 6 on the detection platform 182 from the reject port 101 into the collector 102. This completes the end of a complete experimental cycle.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
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  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

L'invention concerne un analyseur de soufre doté d'un chargeur automatique d'échantillons et comprenant un corps de four fixé sur une plaque de fond, un mécanisme de contrôle, un capteur de teneur en soufre relié à l'extrémité d'un conduit de combustion dans le four via une conduite, un séchoir, un capteur de flux et une pompe de circulation reliée par des conduits en lacets. Un port pour échantillons sur l'extrémité d'entrée du four est relié à un chargeur automatique d'échantillons, lequel comprend un dispositif de transport, un dispositif d'envoi d'échantillons et un mécanisme de localisation.
PCT/CN2007/000696 2006-04-28 2007-03-05 Analyseur de soufre doté d'un chargeur automatique d'échantillons WO2007124647A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610031584.4 2006-04-28
CNB2006100315844A CN100403016C (zh) 2006-04-28 2006-04-28 带自动送样装置的定硫仪

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WO2007124647A1 true WO2007124647A1 (fr) 2007-11-08

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WO (1) WO2007124647A1 (fr)

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CN100403016C (zh) * 2006-04-28 2008-07-16 朱先德 带自动送样装置的定硫仪
CN101221157B (zh) * 2008-01-22 2010-06-16 湖南三德科技发展有限公司 具有卧式单管燃烧管的元素分析仪
CN101661046B (zh) * 2009-09-29 2011-07-20 湖南三德科技发展有限公司 带活动送样平台的定硫仪
CN103234997B (zh) * 2013-04-09 2015-05-06 河南工程学院 液晶触控型立式测硫仪
CN104198750B (zh) * 2014-09-19 2016-03-30 长沙开元仪器股份有限公司 坩埚用运输舟、坩埚运输装置和煤质分析仪
CN107976551B (zh) * 2018-01-31 2023-09-22 鹤壁市华煤仪器研究所有限公司 一种测硫仪用自动送样装置
CN108548845A (zh) * 2018-03-29 2018-09-18 湖南三德科技股份有限公司 一种用于定硫仪的样舟及定硫分析仪
CN111175332B (zh) * 2020-01-09 2021-11-02 中国原子能科学研究院 一种自动混合式k边界密度计***

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