CN101824345A - Coal powder heat treatment device - Google Patents
Coal powder heat treatment device Download PDFInfo
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- CN101824345A CN101824345A CN 201010147130 CN201010147130A CN101824345A CN 101824345 A CN101824345 A CN 101824345A CN 201010147130 CN201010147130 CN 201010147130 CN 201010147130 A CN201010147130 A CN 201010147130A CN 101824345 A CN101824345 A CN 101824345A
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Abstract
The invention relates to a coal powder heat treatment device; a mass flowmeter and a first gas inlet pipe and a second gas inlet pipe of a control valve, wherein the first gas inlet pipe and the second gas inlet pipe are used for conveying different gases and the mixed gases thereof into tubular furnaces are respectively arranged between two parallel pipelines, and the outlet ends of the two gas inlet pipes are connected with a first tubular furnace and a second tubular furnace which are connected serially through a gas mixing pipe section and the control valve; the outlet end of the second tubular furnace is sequentially connected with a cold trap device and a tar collector through pipelines; and the gas mixing pipe section is provided with the pipeline which is connected with a water supply source, and the control valve and a metering pump are sequentially arranged between the pipelines.
Description
Technical field:
The present invention relates to the heat treated technology of coal dust under multiple atmosphere and the mixed atmosphere thereof, relate to a kind of coal powder heat treatment device specifically.This device can be realized the heat treated experimental study of coal dust under the high-temperature high-pressure steam, also can be used for fields such as the reinforcement of coal dust magnetic, coal dust coking and coal dust gasification.
Technical background:
Pulverized coal pyrolysis is an important starting stage of coal combustion process, therefore the thermal treatment unit of studying coal dust has crucial meaning for coal dust magnetic reinforcement etc., and the thermal treatment unit of selecting to be fit to can improve the combustion position of coal dust on certain degree.At present, coal dust heat treatment test device is divided into electrically heated, plasma heating, microwave heating etc. by its type of heating, though advantages such as heat-up rate is fast, selectivity heating that the two kinds of type of heating in back have, but owing to apparatus expensive, poor controllability, being difficult to realize suitability for industrialized production, is main mode with electrically heated still at present.Adopt atmospheric fixed bed reactor, quartz tube reactor more in the Electric heating, freely fall bed bioreactor etc., above-mentioned reactor is because reaction compartment is narrow and small, and each sample size is 0.5～3g only, is difficult to satisfy the suitability for industrialized production demand; Simultaneously a lot of testing apparatuss only can be realized coal dust heat treatment test under the single atmosphere of normal pressure, and the coal dust heat treatment test is powerless down for high pressure mixing atmosphere (particularly high-temperature vapor).The coal powder heat treatment device of now having seen commonly used is as shown below.
People such as Zhang Guojie adopt coal powder heat treatment device in carrying out high sulphur coal hydropyrolysis desulfurization test research process be atmospheric fixed bed reactor, this installs simplicity of design, easy to operate, but have only an inlet mouth, can not carry out the coal dust heat treatment test under multiple atmosphere and the mixed atmosphere; This device can only carry out synthesis under normal pressure simultaneously, can't carry out coal dust hot high pressure Processing Test; Because its reactor design size is less than normal, this device sample throughput is 3g, granularity is less than 3mm, this device is not owing to add tar well and cooling apparatus etc. simultaneously, can't collect the tar that produces in the coal dust heat treatment process, promptly can not accurately analyze and produce tar content and sulphur content thereof in the coal dust heat treatment process, greatly influence the range of application of this device.People such as Xu Long are quartz tube reactor by changing fixed-bed reactor in research Yanzhou coal pyrolysis pre-desulfurization behavior, two processes of pyrolysis and temperature-programmed pyrolysis have realized being rapidly heated, but because the silica tube internal diameter is 1.4cm, each sample size only is 0.5g, quantity of sample handling is too little, silica tube is frangible simultaneously, shortens this and installs work-ing life.
People such as Sugawara are carrying out adopting the pulverized coal pyrolysis device freely to fall bed bioreactor for normal pressure in the fast pyrogenation desulfurization test research process to bituminous coal, with the bottom of inlet mouth design at device, sample freely falls from the top of installing and enters the high-temperature zone, through falling bottom of device after the heating rapidly.This device is easy to operate, and design cost is low, but only can carry out the normal pressure rapid heating, can not carry out the temperature programming heating, and quantity of sample handling is few simultaneously, and control is had relatively high expectations to air-flow simultaneously, and particle is difficult to control in the reaction times through the high-temperature zone, and controllability is relatively poor.
People such as Gao Meishan separate out at research brown coal pyrolysis characteristics and sulphur under methane atmosphere that its thermal treatment unit has adopted two inlet mouths in the rule, realized coal dust heat test research under the mixed atmosphere, accurately measure and the pilot-gas flow by mass flowmeter and mass rate control display instrument, sample is put into porcelain boat and be pushed into the silica tube middle part, heat by the temperature programming of tube furnace.But this device can only carry out under normal pressure, can not carry out the reaction under high pressure test, and this unit capacity is few simultaneously, is not easy to maximize, and only satisfies the requirement to this test.
People such as Li Bin its thermal treatment unit in carrying out the pre-desulfurization test of high sulphur coal semicoke water vapour partial gasification has added volume pump and steam generator, can carry out coal dust heat treatment test under the steam atmosphere, but only design an inlet mouth, only can charge into a kind of gas in the reaction process, adopt the spinner-type flowmeter can not the better controlled gas flow, this device have setting pressure table and back pressure valve simultaneously, can only carry out the test under the condition of normal pressure, sample throughput is few, influences its range of application.
People such as Feng Yubin pyrolysis and the sulphur of research coal separate out characteristic the time adopt be a kind of be reactor with the fixed bed, be the pyrolysis installation that heats original paper with the carborunbum tube.In process of the test, sample put into porcelain boat and be pushed into the silica tube middle part, heat by carborunbum tube.This unit capacity is less, is generally 0.1g, can only carry out the reaction under normal pressure and the single atmosphere simultaneously.
The common coal powder heat treatment device of table 1
As can be seen from the above table, it is relatively simple for structure to use coal powder heat treatment device always at present, reaction pressure is designed to normal pressure more, the single inlet mouth of the many employings of intake method, quantity of sample handling is little and granularity had requirement, these thermal treatment units do not relate to as yet for the Collecting and dealing of follow-up tar substantially simultaneously, and these drawbacks will directly influence its range of application.
Summary of the invention:
Purpose of the present invention is just at the weak point that exists in the above-mentioned coal powder heat treatment device, and a kind of device that can heat-treat coal dust under multiple atmosphere and mixed atmosphere thereof is provided.Coal powder heat treatment device of the present invention not only has the advantage of traditional coal powder heat treatment device concurrently, and devices such as interpolation volume pump, bucket and back pressure valve, can realize the pretreated experimental study of pulverized coal pyrolysis under the high-temperature high-pressure steam, have advantages such as easy to operate, that treatment capacity is big, suitability is strong simultaneously.Can be widely used in fields such as the reinforcement of coal dust magnetic, coal dust coking and coal dust gasification.
Purpose of the present invention can realize by following technique measures:
Coal powder heat treatment device of the present invention comprises first inlet pipe and second inlet pipe that are used for carrying gas with various and mixed gas thereof in tube furnace that is respectively arranged with mass flowmeter, control valve between two pipelines with the parallel way setting, and the exit end of two inlet pipe is connected with first tube furnace, second tube furnace with the series system setting by gas mixing tube section and control valve; The described second tube furnace exit end is connected with cold-trap device and tar well in turn by pipeline; Described gas mixing tube section is provided with the pipeline that is connected with water-supply source, be disposed with control valve and volume pump at this pipeline enclosure, this structure can feed the water that is used to produce high-temperature vapor in tube furnace in the coal dust heat treatment process, realize the coal dust thermal treatment under many atmosphere and the mixed atmosphere thereof.
Be used to hold the test sample device in second tube furnace described in the present invention and adopt stainless steel tube to be prepared from, the stainless steel tube two-port adopts silica wool as obstruction, and the specification of stainless steel tube can be adjusted according to the test needs; Adopt stainless steel tube not only can increase the treatment capacity of test sample, and compare with the quartz glass tube that generally adopts have non-friable, advantage such as can cool off fast, in process of the test, reduced cooling time, simple to operate; Adopt silica wool as obstruction in addition, this with generally adopt in stainless steel tube the weldable steel expanded metals to compare tool to have great advantage, because coal dust is easy coking and formation tar in heat-processed, long-time use will make tar, coal dust stop up expanded metal lath, will be difficult to cleaning in case stop up.Adopt not only easy to operate, the good air permeability of silica wool, and can use repeatedly, reduce experimentation cost.Tube furnace adopts temperature programming, temperature≤1000 ℃.
Cold-trap described in the present invention mainly cools off tail gas, prevent overheated gas infringement follow-up equipment, cold-trap is designed to removable stainless steel U type pipe, and this compares with traditional U type Glass tubing has non-friable advantage, stainless steel U type pipe easy accessibility is convenient to clean simultaneously; Tar well mainly is to collect the tar that produces in the coal dust heat treatment process, also is simultaneously to prevent the tar pollution follow-up equipment that produces, and be very necessary so add tar well.
In addition, the present invention is provided with tensimeter between the stainless steel connecting tube between cold-trap and the tar well, on the tar well gas emission pipe, back pressure valve is installed, is used for realizing that complete assembly carries out high-potting in process of the test, by the pressure in the tensimeter demonstration reaction unit.
Useful result of the present invention is as follows:
(1) adopts the air inlet of bidirection air intake pipe, thereby realized coal dust heat treatment test device under many atmosphere and the mixed atmosphere thereof, have a extensive future.
(2) add devices such as bucket, volume pump, tube furnace, back pressure valve, realized in the coal dust heat treatment process, adding high-temperature high-pressure steam, enlarged the range of application of this device.
The stainless steel tube that is used to hold test sample in (3) second tube furnaces can carry out size adjusting according to the test needs, improved quantity of sample handling, simultaneously in the test operation process, reduce cooling time, when stopping up the stainless steel tube air outlet, utilized the not only easy to operate but also reduction experimentation cost of silica wool.
(4) add devices such as cold-trap, tar well and not only can protect follow-up equipment, and increase the range of application of this device, such as carrying out researchs such as pyrolysis of coal characteristic, gasification.
(5) this device is made by stainless steel fully, compares advantage such as have long service life, not fragile with traditional coal powder heat treatment device.
Description of drawings:
Fig. 1 is the schematic diagram of prior art.
Sequence number among Fig. 1: 1 ', air container, 2 '. under meter, 3 '. rubber plug, 4 '. high temperature process furnances, 5 '. porcelain boat, 6 '. quartz glass tube.
Fig. 2 is a schematic diagram of the present invention.
Sequence number among Fig. 2: 1, first inlet pipe, 2, second inlet pipe, 3, be installed in the mass flowmeter between first inlet pipe, 4, be installed in the mass flowmeter between second inlet pipe, 5, first tube furnace, 6, second tube furnace, 7, tensimeter, 8, cold-trap, 9, tar well, 10 back pressure valves, 11, volume pump, 12, water container.
Embodiment:
The present invention is further detailed below with reference to embodiment (accompanying drawing):
As shown in Figure 2, coal powder heat treatment device of the present invention comprises that the exit end that is used for carrying first inlet pipe 1 of gas with various and mixed gas thereof and 2, two inlet pipe of second inlet pipe in tube furnace that is respectively arranged with mass flowmeter 3,4 and control valve between two pipelines with the parallel way setting is connected with first tube furnace 5, second tube furnace 6 with the series system setting by gas mixing tube section and control valve; Described second tube furnace, 6 exit end are connected with cold-trap device 8 and tar well 9 in turn by pipeline; Described gas mixing tube section is provided with the pipeline that is connected with water-supply source (water container 12), be disposed with control valve and volume pump 11 at this pipeline enclosure, this structure can feed the water that is used to produce high-temperature vapor in tube furnace in the coal dust heat treatment process, realize the coal dust thermal treatment under many atmosphere and the mixed atmosphere thereof.
Be used to hold the test sample device in second tube furnace 6 described in the present invention and adopt stainless steel tube to be prepared from, the stainless steel tube two-port adopts silica wool as obstruction, and the specification of stainless steel tube can be adjusted according to the test needs; Adopt stainless steel tube not only can increase the treatment capacity of test sample, and compare with the quartz glass tube that generally adopts have non-friable, advantage such as can cool off fast, in process of the test, reduced cooling time, simple to operate; Adopt silica wool as obstruction in addition, this with generally adopt in stainless steel tube the weldable steel expanded metals to compare tool to have great advantage, because coal dust is easy coking and formation tar in heat-processed, long-time use will make tar, coal dust stop up expanded metal lath, will be difficult to cleaning in case stop up.Adopt not only easy to operate, the good air permeability of silica wool, and can use repeatedly, reduce experimentation cost.Tube furnace adopts temperature programming, temperature≤1000 ℃.
Cold-trap 8 described in the present invention mainly cools off tail gas, prevent overheated gas infringement follow-up equipment, cold-trap is designed to removable stainless steel U type pipe, and this compares with traditional U type Glass tubing has non-friable advantage, stainless steel U type pipe easy accessibility is convenient to clean simultaneously; Tar well 9 mainly is to collect the tar that produces in the coal dust heat treatment process, also is simultaneously to prevent the tar pollution follow-up equipment that produces, and be very necessary so add tar well.
In addition, the present invention is provided with tensimeter 7 between the stainless steel connecting tube between cold-trap 8 and the tar well 9, back pressure valve 10 is installed on the tar well gas emission pipe, be used for realizing that complete assembly carries out high-potting in process of the test, by the pressure in the tensimeter demonstration reaction unit.
Principle of work of the present invention is as follows:
Different gas enters two inlet pipe respectively by the valve that is arranged on first inlet pipe 1 and second inlet pipe, 2 inlet mouth ends, and pass through mass flowmeter 3,4 pilot-gas flows via what be separately positioned on its pipeline enclosure, behind the gas with various process gas mixing tube section thorough mixing, control by valve enters first tube furnace 5, second tube furnace 6 successively, tail gas cools off by cold-trap device 8 after reacting, cooled gas is collected the tar that produces through tar well 9, and last tail gas is discharged through back pressure valve 10.If test conditions needs high-temperature vapor, can be by the water in the volume pump 11 extraction water containers 12, water is fed into first tube furnace 5 by water pipe, generate high-temperature vapor through first tube furnace, 5 heat, and by carrier gas high-temperature vapor is sent into second tube furnace 6 and react.Can pass through the pressure of tensimeter 7, back pressure valve 10 adjustment reaction atmospheres in the reaction process.
The testing apparatus operation steps is specific as follows:
(1) takes off stainless steel tube in second tube furnace 6, silica wool is filled in an end of stainless steel tube air outlet, then load weighted sample is put into the tube furnace middle part, tight a bolt.
(2) open mass flowmeter, make a call to the valve of first inlet pipe 1 and second inlet pipe, 2 inlet mouth ends respectively according to the test needs, and the valve of connection first tube furnace 5 of the intersegmental setting of gas mixing tube (the high-temperature vapor reaction conditions then should be opened the volume pump switch and adjust strapping table if desired, open the water pipe valve simultaneously), by mass flowmeter pilot-gas flow.
(3) open first tube furnace, the second tube furnace switch, the temperature of reaction that set to need heats then, checks tensimeter simultaneously and adjusts back pressure valve and determine reaction pressure.
(4) reaction should at first be closed the tube furnace switch after finishing, slowly open back pressure valve, when tensimeter is shown as normal pressure, the stainless steel tube taking-up is cooled to room temperature, close the valve of first inlet pipe 1 and second inlet pipe, 2 inlet mouth ends simultaneously, close mass flowmeter switch (as closing volume pump and respective valves in that the high-temperature vapor reaction conditions is next) then.
(5) stainless steel tube that will be cooled to room temperature takes out, and then sample is poured out from stainless steel tube inlet mouth one end, collects sample (test as need to collect tar, tail gas can carry out in the lump).
(6) sample after will collecting is weighed and is preserved the washing test device with sample sack.
Claims (4)
1. coal powder heat treatment device, it is characterized in that: described device comprises first inlet pipe and second inlet pipe that are used for carrying gas with various and mixed gas thereof in tube furnace that is respectively arranged with mass flowmeter, control valve between two pipelines with the parallel way setting, and the exit end of two inlet pipe is connected with first tube furnace, second tube furnace with the series system setting by gas mixing tube section and control valve; The described second tube furnace exit end is connected with cold-trap device and tar well in turn by pipeline; Described gas mixing tube section is provided with the pipeline that is connected with water-supply source, is disposed with control valve and volume pump at this pipeline enclosure.
2. coal powder heat treatment device according to claim 1 is characterized in that: be used to hold the test sample device in described second tube furnace and adopt stainless steel tube to be prepared from, the stainless steel tube two-port adopts silica wool as obstruction.
3. coal powder heat treatment device according to claim 1 is characterized in that: described cold-trap master is the stainless steel U type pipe of removable structure.
4. coal powder heat treatment device according to claim 1 is characterized in that: be provided with tensimeter between the stainless steel connecting tube between cold-trap and the tar well, on the tar well gas emission pipe back pressure valve be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010147130 CN101824345A (en) | 2010-04-15 | 2010-04-15 | Coal powder heat treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010147130 CN101824345A (en) | 2010-04-15 | 2010-04-15 | Coal powder heat treatment device |
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| CN101824345A true CN101824345A (en) | 2010-09-08 |
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| CN 201010147130 Pending CN101824345A (en) | 2010-04-15 | 2010-04-15 | Coal powder heat treatment device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382403A (en) * | 2013-05-31 | 2013-11-06 | 青岛新奥胶城燃气有限公司 | Method for preparing fuel gas by utilizing municipal waste |
| CN106994278A (en) * | 2017-04-06 | 2017-08-01 | 西安交通大学 | The experimental method and device purified for pulverized coal pyrolysis high temperature dust tar step |
| IT201700033911A1 (en) * | 2017-04-18 | 2018-10-18 | Antonio Messineo | MULTI-LAYER SELF-CATALYTIC MICRO-GASIFIER FOR BIOMASS GASIFICATION. |
| CN110055103A (en) * | 2018-09-27 | 2019-07-26 | 新能能源有限公司 | The cooling of novel hydrogenation gasification char and collection device |
| CN113019263A (en) * | 2019-12-25 | 2021-06-25 | 新疆硅基新材料创新中心有限公司 | SiO (silicon dioxide)XHeat treatment method and system for @ C composite material |
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| CN86104923A (en) * | 1986-08-02 | 1987-02-11 | 机械工业部第三设计研究院 | The also flow-generator for preparing the thermal treatment controlled atmosphere with coal |
| CN201184590Y (en) * | 2008-03-26 | 2009-01-21 | 王兴道 | Combined type powder coal gasification combustion apparatus |
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2010
- 2010-04-15 CN CN 201010147130 patent/CN101824345A/en active Pending
Patent Citations (2)
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| CN86104923A (en) * | 1986-08-02 | 1987-02-11 | 机械工业部第三设计研究院 | The also flow-generator for preparing the thermal treatment controlled atmosphere with coal |
| CN201184590Y (en) * | 2008-03-26 | 2009-01-21 | 王兴道 | Combined type powder coal gasification combustion apparatus |
Non-Patent Citations (1)
| Title |
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| 《煤炭转化》 20051031 高梅杉等 褐煤在甲烷气氛下热解特性及硫析出规律研究 第7-10页 权利要求1-4 第28卷, 第4期 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382403A (en) * | 2013-05-31 | 2013-11-06 | 青岛新奥胶城燃气有限公司 | Method for preparing fuel gas by utilizing municipal waste |
| CN103382403B (en) * | 2013-05-31 | 2016-12-28 | 浙江划云环境技术有限公司 | Utilize the method that municipal refuse prepares combustion gas |
| CN106994278A (en) * | 2017-04-06 | 2017-08-01 | 西安交通大学 | The experimental method and device purified for pulverized coal pyrolysis high temperature dust tar step |
| IT201700033911A1 (en) * | 2017-04-18 | 2018-10-18 | Antonio Messineo | MULTI-LAYER SELF-CATALYTIC MICRO-GASIFIER FOR BIOMASS GASIFICATION. |
| CN110055103A (en) * | 2018-09-27 | 2019-07-26 | 新能能源有限公司 | The cooling of novel hydrogenation gasification char and collection device |
| CN110055103B (en) * | 2018-09-27 | 2023-11-07 | 新能能源有限公司 | Novel hydro-gasification semicoke cooling and collecting device |
| CN113019263A (en) * | 2019-12-25 | 2021-06-25 | 新疆硅基新材料创新中心有限公司 | SiO (silicon dioxide)XHeat treatment method and system for @ C composite material |
| CN113019263B (en) * | 2019-12-25 | 2023-09-01 | 新疆硅基新材料创新中心有限公司 | SiO (silicon dioxide) X Thermal treatment method and system for @ C composite material |
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Application publication date: 20100908 |