CN113137997A - High-temperature high-dust solid material level measuring system - Google Patents
High-temperature high-dust solid material level measuring system Download PDFInfo
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- CN113137997A CN113137997A CN202010052086.8A CN202010052086A CN113137997A CN 113137997 A CN113137997 A CN 113137997A CN 202010052086 A CN202010052086 A CN 202010052086A CN 113137997 A CN113137997 A CN 113137997A
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- material level
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
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- Incineration Of Waste (AREA)
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- Gasification And Melting Of Waste (AREA)
Abstract
本发明属于垃圾热解技术领域，具体涉及一种高温高粉尘固体物料料位测量系统。该装置包括：旋风分离器入口、旋风分离器筒体、料腿、料腿料位高高测量发射器、料腿料位高高测量接收器、料腿料位高测量发射器、料腿料位高测量接收器、料腿料位低测量发射器、料腿料位低测量接收器、料腿料位低低测量发射器、料腿料位低低测量接收射器、下料控制器、热解反应器、固体热载体炉。采用改进工装以后，料位计的发射和接收端都通过高温玻璃收发微波信号，可以减小物料形成空心锥体后对料位实际高度的影响。此外，该测量装置可以在线更换料位计，并且多垫片密封的结构进一步保证了连接的密封性。
The invention belongs to the technical field of waste pyrolysis, and in particular relates to a material level measuring system for high-temperature and high-dust solid materials. The device includes: cyclone separator inlet, cyclone separator cylinder, feed leg, feed leg material level height measurement transmitter, feed leg material level height measurement receiver, feed leg material level height measurement transmitter, feed leg material level height measurement transmitter, feed leg material level height measurement transmitter Level height measurement receiver, feed leg material level low measurement transmitter, feed leg material level low measurement receiver, feed leg material level low and low measurement transmitter, feed leg material level low and low measurement receiver transmitter, blanking controller, Pyrolysis reactor, solid heat carrier furnace. After the improved tooling is adopted, both the transmitter and receiver ends of the material level gauge send and receive microwave signals through the high-temperature glass, which can reduce the influence of the material on the actual height of the material level after the material forms a hollow cone. In addition, the measuring device can replace the level gauge online, and the multi-gasket sealing structure further ensures the tightness of the connection.
Description
Technical Field
The invention belongs to the technical field of garbage pyrolysis, and particularly relates to a high-temperature high-dust solid material level measuring system.
Background
In the garbage pyrolysis industry, a high-temperature cyclone separator is connected with a hearth through a short flue, high-temperature flue gas carrying a solid heat carrier is introduced into a cylinder body from an inlet of the cyclone separator along a tangential direction, and a gas-solid mixture spirally moves downwards by taking the cylinder wall as a boundary, namely an outward cyclone.
The centrifugal force generated by rotation enables the solid heat carrier with the density larger than that of the gas to be separated from the main gas flow and gathered on the cylinder wall, and the solid heat carrier slides down to the acceleration section along the cylinder wall under the action of inlet momentum and gravity, and then enters the pyrolysis reactor through the dipleg after being discharged from a lower opening of the acceleration section.
The outward rotating airflow which rotates and descends reaches the cone and then is restricted by the cone shape to shrink towards the center of the separator, and the tangential speed of the outward rotating airflow is continuously improved because the rotating moment is unchanged. When the airflow reaches a certain position at the lower end of the conical acceleration section, the airflow starts to rebound and rise in the same rotation direction and continues to flow spirally to form internal rotation airflow. The solid particles of the heat carrier in the cyclone separator descend to the dipleg so as not to influence the dust removal effect. The dipleg full of heat carrier has narrow space, high temperature and large dust content, and the heat carrier in the dipleg must keep a certain height to form the effect of material sealing, so the material level under the situation is very necessary to be effectively measured. The existing common material level measuring technologies such as radar and ultrasonic waves are not interfered by the shape and size of a container or severe working conditions such as high temperature and dust, but cannot meet the requirements of sealing, explosion prevention and the like, so that a material level measuring device in a high-temperature high-dust narrow space is needed to be developed urgently to solve the problems.
Disclosure of Invention
The invention provides a device for measuring the material level in a narrow space with high temperature and high dust, aiming at effectively measuring the material level in the narrow space with high temperature and high dust.
The technical scheme adopted by the invention is that the device for measuring the material level in a high-temperature high-dust narrow space comprises: the device comprises a cyclone separator inlet, a cyclone separator cylinder, a dipleg material level height measurement transmitter, a dipleg material level height measurement receiver, a dipleg material level low measurement transmitter, a dipleg material level low measurement receiving transmitter, a blanking controller, a pyrolysis reactor and a solid heat carrier furnace.
The solid heat carrier furnace generates combustion oxidation reaction of pyrolysis carbon residue and pyrolysis gas and generates high-temperature flue gas and a heat carrier, and a high-temperature flue gas outlet in the solid heat carrier furnace is communicated with an inlet of the cyclone separator; the inlet of the cyclone separator is arranged on the cylinder body of the cyclone separator and is communicated with the cylinder body; the lower end of the cylinder body is provided with a dipleg, and the cylinder body is communicated with the dipleg; the discharge port of the dipleg is arranged at the center of the lower part of the dipleg and is communicated with a blanking controller; the blanking controller is communicated with the garbage pyrolysis reactor.
Furthermore, 4 pairs of microwave material level meters are symmetrically arranged on the material legs, and each pair of microwave material level meters comprises a transmitter responsible for transmitting microwave signals and a receiver responsible for detecting the microwave signals, converting the microwave signals into material level states and outputting the material level states through an information processor relay.
Furthermore, two pairs of opposite dipleg material level height measurement transmitters and dipleg material level height measurement receivers, dipleg material level low measurement transmitters and dipleg material level low measurement receivers are arranged on the dipleg from high to low in sequence.
Furthermore, the two opposite dipleg material level transmitters and receivers are respectively welded on the wall surface of the dipleg through mounting sleeves.
Furthermore, in the measuring device, a mounting sleeve extends into the dipleg equipment, high-temperature-resistant glass and a gasket are mounted at the extending end of the mounting sleeve, and the high-temperature-resistant glass and the gasket are tightly pressed through a flange and a pressing sleeve to realize sealing; a level gauge is mounted outside the sleeve.
Furthermore, in the measuring device, the material level height of the heat carrier in the material leg is controlled by the blanking controller, so that the gas isolation between the cylinder body of the cyclone separator and the pyrolysis reactor is realized.
Further, a high-temperature heat carrier in the dipleg falls into the garbage pyrolysis reactor through the blanking controller, and garbage and the high-temperature heat carrier are stirred, mixed and subjected to heat transfer in the garbage pyrolysis reactor to complete garbage pyrolysis.
The technical scheme of the invention has the beneficial effects that: the embedded high-temperature quartz glass cylinder-mounted detachable device is adopted, and the influence of the materials forming a hollow cone on the actual height of the material level can be reduced due to the protruding structure on the inner wall of the bin; meanwhile, the material level meter can be replaced on line by a small sleeve thread structure at the outer end, and the sealing performance of connection can be effectively guaranteed by multi-gasket sealing.
Drawings
FIG. 1 is a schematic structural diagram of a device for measuring a material level in a high-temperature and high-dust narrow space.
In the figure: cyclone entry 1, cyclone barrel 2, dipleg 3, dipleg material level height measures transmitter 4, dipleg material level height and measures receiver 5, dipleg material level height measures transmitter 6, dipleg material level height measures receiver 7, dipleg material level low measures transmitter 8, dipleg material level low measures receiver 9, dipleg material level low measures transmitter 10, dipleg material level low measures and receives transmitter 11, unloading controller 12, pyrolysis reactor 13, solid heat carrier stove 14.
Detailed Description
The technical scheme of the invention is explained in detail in the following by combining the drawings and the specific embodiment.
As shown in FIG. 1, the present invention relates to a device for measuring material level in a high temperature and high dust narrow space, which comprises: cyclone entry 1, cyclone barrel 2, dipleg 3, dipleg material level height measures transmitter 4, dipleg material level height and measures receiver 5, dipleg material level height measures transmitter 6, dipleg material level height measures receiver 7, dipleg material level low measures transmitter 8, dipleg material level low measures receiver 9, dipleg material level low measures transmitter 10, dipleg material level low measures and receives transmitter 11, unloading controller 12, pyrolysis reactor 13, solid heat carrier stove 14.
The solid heat carrier furnace 14 sends out combustion oxidation reaction of pyrolysis carbon residue and pyrolysis gas to generate high-temperature flue gas and a heat carrier, and a high-temperature flue gas outlet in the solid heat carrier furnace 14 is communicated with the cyclone separator inlet 1; the cyclone separator inlet 1 is arranged on the cyclone separator cylinder 2, and the cyclone separator inlet 1 is communicated with the cyclone separator cylinder 2; pyrolysis carbon residues and pyrolysis gas in the solid heat carrier furnace 14 are subjected to combustion oxidation reaction in the furnace, high-temperature flue gas carrying a heat carrier is introduced into the cyclone separator cylinder 2 through the cyclone separator inlet 1 along the tangential direction, and a gas-solid mixture spirally moves downwards by taking the cylinder wall of the cyclone separator cylinder 2 as a boundary to form an external cyclone gas flow; the centrifugal force generated by the rotation of the outward rotating airflow enables the solid heat carrier with the density higher than that of the gas to be separated from the main gas flow and converged on the cylinder wall of the cyclone separator cylinder body 2, and the solid heat carrier slides down to the acceleration section along the cylinder wall under the action of inlet momentum and gravity and enters the dipleg 3; the lower end of the cyclone separator cylinder body 2 is provided with a dipleg 3, and the cyclone separator cylinder body 2 is communicated with the dipleg 3; the discharge port of the dipleg 3 is arranged at the center of the lower part thereof and is communicated with a blanking controller 12; the blanking controller 12 is communicated with the garbage pyrolysis reactor 13.
Through analysis, the material level measurement working condition in the dipleg is severe, and conventional radars, ultrasonic waves, capacitors and the like are not suitable for the working condition, so 4 pairs of microwave material level meters are arranged on the dipleg 3 in the technical scheme of the invention. 4 pairs of microwave material level meters are symmetrically arranged on the dipleg 3, and each pair of microwave material level meters comprises a transmitter responsible for transmitting microwave signals and a receiver responsible for detecting the microwave signals, converting the microwave signals into material level states and outputting the material level states by an information processor relay; the emitter and the receiver are made of high-temperature-resistant ceramics, when the height of the solid material exceeds the end face of the level indicator, the microwave is blocked, and the level signal is output by the instrument; when the height of the solid material is lower than the end face of the level indicator, the microwave is captured by the receiving end, and the information processor outputs a no-level signal.
The 4 pairs of microwave level gauges are specifically: two pairs of opposite dipleg material level height measurement transmitters 4 and dipleg material level height measurement receivers 5, dipleg material level height measurement transmitters 6 and dipleg material level height measurement receivers 7, dipleg material level low measurement transmitters 8 and dipleg material level low measurement receivers 9, dipleg material level low measurement transmitters 10 and dipleg material level low measurement receivers 11 are arranged on the dipleg 3 from different positions from high to low in sequence;
the device comprises a dipleg material level height measuring transmitter 4 and a dipleg material level height measuring receiver 5 which are opposite to each other in pairs; a dipleg material level height measuring transmitter 6 and a dipleg material level height measuring receiver 7; a dipleg level low measurement transmitter 8 and a dipleg level low measurement receiver 9; a material level low measurement transmitter 10 and a material level low measurement receiver 11 of the material legs are respectively welded on the wall surface of the material legs 3 through mounting sleeves; the installation sleeve extends into the dipleg 3 equipment, high-temperature-resistant glass and a gasket are installed at the extending end of the installation sleeve, and the high-temperature-resistant glass and the gasket are tightly pressed through a flange and a pressing sleeve to realize sealing; a level gauge is mounted outside the sleeve.
Further, the material level height of the heat carrier in the dipleg 3 is controlled through the blanking controller 12, so that the gas isolation between the cyclone separator cylinder 2 and the pyrolysis reactor 13 is realized; the high-temperature heat carrier in the dipleg 3 falls into the garbage pyrolysis reactor 13 through the blanking controller 12, and garbage and the high-temperature heat carrier are stirred, mixed and heat-transferred in the garbage pyrolysis reactor 13 to complete garbage pyrolysis.
The above detailed description is made on the device for measuring the material level in the high-temperature and high-dust narrow space. The principles and embodiments of the present invention are illustrated in a certain waste pyrolysis apparatus, and the above examples are only preferred embodiments of the present invention, and do not limit the scope of the present invention. The present invention is not limited to the embodiments shown in the drawings, and various modifications and changes can be made therein without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a high dust solid material level measurement system which characterized in that:
the device includes: the device comprises a cyclone separator inlet (1), a cyclone separator cylinder (2), a dipleg (3), a dipleg material level height measurement transmitter (4), a dipleg material level height measurement receiver (5), a dipleg material level height measurement transmitter (6), a dipleg material level height measurement receiver (7), a dipleg material level low measurement transmitter (8), a dipleg material level low measurement receiver (9), a dipleg material level low measurement transmitter (10), a dipleg material level low measurement receiver (11), a blanking controller (12), a pyrolysis reactor (13) and a solid heat carrier furnace (14);
the solid heat carrier furnace (14) sends out combustion oxidation reaction of pyrolysis carbon residue and pyrolysis gas and generates high-temperature flue gas and a heat carrier, and a high-temperature flue gas outlet in the solid heat carrier furnace (14) is communicated with the inlet (1) of the cyclone separator;
the cyclone separator inlet (1) is arranged on the cyclone separator cylinder (2), and the cyclone separator inlet (1) is communicated with the cyclone separator cylinder (2);
the lower end of the cyclone separator cylinder body (2) is provided with a dipleg (3), and the cyclone separator cylinder body (2) is communicated with the dipleg (3);
the discharge port of the dipleg (3) is arranged at the center of the lower part thereof and is communicated with a blanking controller (12);
n pairs of microwave material level meters are arranged on the dipleg (3), and N is more than or equal to 1;
the blanking controller (12) is communicated with the garbage pyrolysis reactor (13).
2. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 1, wherein: the discharge hole of the dipleg (3) is arranged at the center of the lower part of the dipleg.
3. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 1, wherein: n pairs of microwave material level meters are arranged on the dipleg (3), and N is 4.
4. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 3, wherein: the 4 pairs of microwave material level meters are symmetrically arranged on the dipleg (3), and each pair of microwave material level meters comprises a transmitter responsible for transmitting microwave signals and a receiver responsible for detecting the microwave signals, converting the microwave signals into material level states and outputting the material level states by an information processor relay.
5. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 4, wherein: two pairs of opposite dipleg material level height measurement transmitters (4) and dipleg material level height measurement receivers (5), dipleg material level height measurement transmitters (6) and dipleg material level height measurement receivers (7), dipleg material level low measurement transmitters (8) and dipleg material level low measurement receivers (9), dipleg material level low measurement transmitters (10) and dipleg material level low measurement receivers (11) are sequentially arranged on the dipleg (3) from high to low different positions.
6. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 5, wherein: the device comprises a dipleg material level height measuring transmitter (4) and a dipleg material level height measuring receiver (5) which are opposite to each other in pairs; a material level height measuring transmitter (6) and a material level height measuring receiver (7) of the material legs; a dipleg material level low measuring transmitter (8) and a dipleg material level low measuring receiver (9); the material level low measurement emitter (10) and the material level low measurement receiving emitter (11) of the material legs are welded on the wall surface of the material legs (3) through mounting sleeves respectively.
7. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 6, wherein: the mounting sleeve extends into the dipleg (3) equipment, high-temperature-resistant glass and a gasket are mounted at the extending end of the mounting sleeve, and the high-temperature-resistant glass and the gasket are tightly pressed through a flange and a pressing sleeve to realize sealing; a level gauge is mounted outside the sleeve.
8. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 1, wherein: the material level height of a heat carrier in the dipleg (3) is controlled through the blanking controller (12), and gas isolation between the cyclone separator cylinder (2) and the pyrolysis reactor (13) is realized.
9. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 1, wherein: the high-temperature heat carrier in the dipleg (3) falls into the garbage pyrolysis reactor (13) through the blanking controller (12), and the garbage and the high-temperature heat carrier are stirred, mixed and transferred in the garbage pyrolysis reactor (13) to complete garbage pyrolysis.
10. The device for measuring the material level in the narrow space with high temperature and high dust as claimed in claim 1, wherein: the discharge hole of the dipleg (3) is arranged at the center of the lower part of the dipleg;
n pairs of microwave material level meters are arranged on the dipleg (3), and N is 4;
4 pairs of microwave material level meters are symmetrically arranged on the dipleg (3), and each pair of microwave material level meters comprises a transmitter responsible for transmitting microwave signals and a receiver responsible for detecting the microwave signals, converting the microwave signals into material level states and outputting the material level states by an information processor relay;
the 4 pairs of microwave level gauges are specifically: two pairs of opposite dipleg material level height measurement transmitters (4), dipleg material level height measurement receivers (5), dipleg material level height measurement transmitters (6), dipleg material level height measurement receivers (7), dipleg material level low measurement transmitters (8), dipleg material level low measurement receivers (9), dipleg material level low measurement transmitters (10) and dipleg material level low measurement receivers (11) are arranged on the dipleg (3) from high to low in sequence;
the device comprises a dipleg material level height measuring transmitter (4) and a dipleg material level height measuring receiver (5) which are opposite to each other in pairs; a material level height measuring transmitter (6) and a material level height measuring receiver (7) of the material legs; a dipleg material level low measuring transmitter (8) and a dipleg material level low measuring receiver (9); the dipleg material level low measurement transmitter (10) and the dipleg material level low measurement receiving transmitter (11) are respectively welded on the equipment wall surface of the dipleg (3) through mounting sleeves; the mounting sleeve extends into the dipleg (3) equipment, high-temperature-resistant glass and a gasket are mounted at the extending end of the mounting sleeve, and the high-temperature-resistant glass and the gasket are tightly pressed through a flange and a pressing sleeve to realize sealing; installing a level meter outside the sleeve;
the material level height of a heat carrier in the dipleg (3) is controlled through the blanking controller (12), so that the gas isolation between the cyclone separator cylinder (2) and the pyrolysis reactor (13) is realized;
the high-temperature heat carrier in the dipleg (3) falls into the garbage pyrolysis reactor (13) through the blanking controller (12), and the garbage and the high-temperature heat carrier are stirred, mixed and transferred in the garbage pyrolysis reactor (13) to complete garbage pyrolysis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010052086.8A CN113137997A (en) | 2020-01-17 | 2020-01-17 | High-temperature high-dust solid material level measuring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010052086.8A CN113137997A (en) | 2020-01-17 | 2020-01-17 | High-temperature high-dust solid material level measuring system |
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| CN113137997A true CN113137997A (en) | 2021-07-20 |
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| CN202010052086.8A Pending CN113137997A (en) | 2020-01-17 | 2020-01-17 | High-temperature high-dust solid material level measuring system |
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Citations (6)
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| CN201476845U (en) * | 2009-08-29 | 2010-05-19 | 周亚非 | Radio frequency material position monitor |
| CN102759382A (en) * | 2011-04-25 | 2012-10-31 | 中国科学院工程热物理研究所 | Device and method for measuring solid circulation flow rate |
| RU2012130846A (en) * | 2012-07-19 | 2014-01-27 | Открытое акционерное общество "Энергетический институт им. Г.М. Кржижановского" (ОАО ЭНИН) | INSTALLATION FOR THERMAL PROCESSING OF SOLID FUELS |
| CN105526991A (en) * | 2016-01-22 | 2016-04-27 | 济钢集团国际工程技术有限公司 | Material level switch for dry quenching primary dust remover high material level detection |
| CN206824036U (en) * | 2017-06-28 | 2018-01-02 | 新能能源有限公司 | A kind of cyclone separation system |
| CN211740335U (en) * | 2020-01-17 | 2020-10-23 | 北京航天石化技术装备工程有限公司 | A high temperature and high dust solid material level measurement system |
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2020
- 2020-01-17 CN CN202010052086.8A patent/CN113137997A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476845U (en) * | 2009-08-29 | 2010-05-19 | 周亚非 | Radio frequency material position monitor |
| CN102759382A (en) * | 2011-04-25 | 2012-10-31 | 中国科学院工程热物理研究所 | Device and method for measuring solid circulation flow rate |
| RU2012130846A (en) * | 2012-07-19 | 2014-01-27 | Открытое акционерное общество "Энергетический институт им. Г.М. Кржижановского" (ОАО ЭНИН) | INSTALLATION FOR THERMAL PROCESSING OF SOLID FUELS |
| CN105526991A (en) * | 2016-01-22 | 2016-04-27 | 济钢集团国际工程技术有限公司 | Material level switch for dry quenching primary dust remover high material level detection |
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