CN103149239A - All-in-one type coal quality detecting device and coal quality detecting method - Google Patents
All-in-one type coal quality detecting device and coal quality detecting method Download PDFInfo
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- CN103149239A CN103149239A CN2013100391392A CN201310039139A CN103149239A CN 103149239 A CN103149239 A CN 103149239A CN 2013100391392 A CN2013100391392 A CN 2013100391392A CN 201310039139 A CN201310039139 A CN 201310039139A CN 103149239 A CN103149239 A CN 103149239A
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Abstract
The invention discloses an all-in-one type coal quality detecting device and a coal quality detecting method. The all-in-one type coal quality detecting device is characterized by comprising a heat measuring module, a sulfur measuring module and a connecting module. The connecting module comprises a flow meter. An air outlet of the heat measuring module is connected with an air inlet of the flow meter through an air pipe. An air outlet of the flow meter is connected with the sulfur module through the air pipe. The all-in-one type coal quality detecting device and the coal quality detecting method can measure two indicators including a heat value of a coal sample and sulfur content of the coal sample, detecting cost is low, and detecting efficiency is high.
Description
Technical field
The present invention relates to a kind of Unitary coal quality detecting device and coal quality detecting method, belong to the coal property test field.
Background technology
Coal has at home quite widely and uses as the main fossil fuel of China.It has played the part of the dominant role of energy supply in recent decades, and at chemical industry, iron and steel, energy industry importance beyond any doubt.Coal burning needs to detect before using, and determines coal index and characteristic, the use occasion that Coal rank is corresponding different.
In traditional coal property test field, it be calorimeter and sulphur meter separate detection that two indexs of the calorific value of coal sample and sulfur content need two kinds of instruments in the past, and operation inconvenience expends time in, and had brought inconvenience also for the enterprise of production and application coal.And two kinds of instruments detect separately, need to expend double coal sample, and cost is high.
Therefore, be necessary to design a kind of Unitary coal quality detecting device and coal quality detecting method.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of Unitary coal quality detecting device and coal quality detecting method, this Unitary coal quality detecting device and the coal quality detecting method disposable measurement coal sample calorific value of energy and two indexs of sulfur content, testing cost is low, and detection efficiency is high.
The technical solution of invention is as follows:
A kind of Unitary coal quality detecting device comprises calorimetric module, amount sulphur module and link block; Described link block comprises flowmeter and controllable electromagnetic valve, and the air stream outlet of calorimetric module connects the air intake opening of flowmeter through controllable electromagnetic valve by airflow line; The gas outlet of flowmeter is by airflow line connection amount sulphur module.
Described calorimetric module comprises pressure vessel and the interior bucket that is filled with water, and interior bucket is placed in pressure vessel, is provided with the temperature sensor for detection of water temperature in interior bucket, and the air stream outlet of pressure vessel is the air stream outlet of described calorimetric module.
Controllable electromagnetic valve is arranged on the air flow outlet of calorimetric module.
Described amount sulphur module comprises the container that fills electrolytic solution and is used for measuring the electrolytic circuit of sulfur content, and the outlet of the airflow line of connection traffic meter gas outlet extend in electrolytic solution.
Store air or inert gas in flowmeter.
Coal quality detecting method based on aforesaid Unitary coal quality detecting device, the throughput thermal modules detects the unit thermal value of coal sample to be measured, the air-flow of calorimetric module output is through link block inlet sulphur module, then throughput sulphur module adopts the electrolytic titration method to record the sulfur content of this coal sample.
The flowmeter of calorimetric module stores air or inert gas.
Beneficial effect:
Unitary coal quality detecting device of the present invention and coal quality detecting method, design dexterously link block and connected calorimetric module and amount sulphur module, the all gas amount of importing to sulphur module with the generation of calorimetric module, thereby adopt same coal sample can detect once coal sample calorific value and two indexs of sulfur content, testing cost is low, and detection efficiency is high.
Unitary coal quality detecting device and coal quality detecting method can record thermal value and two index parameters of sulfur content by a coal sample ensure detecting data accurately and effectively under prerequisite.By coal sample fully burning in oxygen, obtain the calorie value that coal sample produces, obtain the thermal value of coal sample through converting.The waste gas that again burning is produced is incorporated in particular solution, and electrolytic titration obtains sulfur content by conversion.The detection method that the present invention adopts in today that industrial informationization is strengthened day by day, effectively improves detection efficiency, and is energy-saving and cost-reducing, can improve the work efficiency of related detection unit, has significant society and economic benefit.
Core of the present invention is that the gases at high pressure after the pressure-resistant apparatus burning are all derived through solenoid valve, and total gas couette adopts existing matured product flowmeter through flowmeter inlet sulphur module, can further simplify system, makes this programme more easily implement.
Description of drawings
Fig. 1 is the structural representation of integral type coal property test device;
Fig. 2 is the process flow diagram of integral type coal quality detecting method.
Label declaration: 1-pressure vessel, 2-controllable electromagnetic valve, 3-electrolytic solution, 4-electrolytic circuit.
Embodiment
Below with reference to the drawings and specific embodiments, the present invention is described in further details:
Embodiment 1:
As shown in Figure 1, the Unitary coal quality detecting device comprises calorimetric module, amount sulphur module and link block; Described link block comprises flowmeter and controllable electromagnetic valve, and the air stream outlet of calorimetric module connects the air intake opening of flowmeter through controllable electromagnetic valve by airflow line; The gas outlet of flowmeter is by airflow line connection amount sulphur module.
Described calorimetric module comprises pressure vessel and the interior bucket that is filled with water, and interior bucket is placed in pressure vessel, is provided with the temperature sensor for detection of water temperature in interior bucket, and the air stream outlet of pressure vessel is the air stream outlet of described calorimetric module.
Controllable electromagnetic valve is arranged on the air flow outlet of calorimetric module.
Described amount sulphur module comprises the container that fills electrolytic solution and is used for measuring the electrolytic circuit of sulfur content, and the outlet of the airflow line of connection traffic meter gas outlet extend in electrolytic solution.
The method of integral type coal property test as shown in Figure 2.
The structure of calorimetric module and principle of work explanation:
A certain amount of sample is placed on oxygen bomb (the being pressure vessel) internal combustion that is filled with excessive oxygen, thereby the heat that discharges is absorbed by quantitative interior bucket water by the conduction of the inside bucket of oxygen bomb water.Consider outside in the substantially invariable situation of environment temperature, variation and the caloric receptivity of interior bucket coolant-temperature gage are directly proportional, so just can calculate the thermal value of sample according to the temperature rise of interior bucket water.
The principle of work of surveying the sulphur module is under the clean-burning prerequisite of unit coal, and after burn, gas passes in standard solution, and the method by electrolytic titration records the burning sulfur content in gas, the sulfur content of the unit's of learning coal then afterwards.In the air guide process, it is the 1000mL/min that GB requires that controllable electromagnetic valve is controlled gas derivation speed, can learn the derivation gas gross by flowmeter after gas is derived fully.
Described pressure vessel (oxygen bomb) is coal sample clean-burning container under pure oxygen environment.Relevant oxygen bomb technical specification describes in detail in the coal industry standard MT/T 737-2007 of the People's Republic of China (PRC) " calorimeter oxygen bomb Safety Inspection standard ", does not do at this and gives unnecessary details.
The temperature variation of bucket water in when described temperature sensor uses in order to measure.
Controllable electromagnetic valve is in order to controlling the break-make of oxygen bomb and link block, and the waste gas after coal sample being burnt in oxygen bomb when opening imports in flowmeter in link block, blocks two-part connection when closing, and can control derivation speed.
Wherein said link block entrance is connected with the outlet of calorimetric module, mainly comprises flowmeter and relevant breather line.
Be serially connected with voltameter in electrolytic circuit.
Wherein said electrolytic solution is described in detail in State Standard of the People's Republic of China GB/T214-2007 " full content of Sulphur in coal assay method ", and therefore not to repeat here.Normal electrolytic solution has reductibility, with the sulfurous gas generation chemical reaction with oxidisability.
Be existing mature technology for detection of the electrolytic circuit that contains the amount of dredging.
Voltameter can be by the sulphur component content in coulometric titration method mensuration throughput sulphur modular gas.The coulometric titration method is described in detail in the People's Republic of China's GB standard GB/T214-2007 " full content of Sulphur in coal assay method ".
Concrete implementation step:
Unitary coal quality detecting device of the present invention realizes that disposable measurement coal sample calorific value and two indexs of sulfur content contain following steps:
(1), the coal sample of inserting in oxygen bomb after abundant burning, produces heat and gases at high pressure in the sealing pure oxygen environment.
(2), wherein heat heats up the calorimetric module whole.Learnt its unit caloric receptivity by the demarcation of certain mass standard substance before the calorimetric modularized experiment, built-in temperature sensor can obtain the temperature variation in temperature-rise period.These two indexs can be extrapolated the heat that the coal sample burning produces, because the coal sample quality is known, draw so the unit thermal value of coal sample can be calculated, i.e. the calorific value of coal sample again.
(3), fully after burning, controllable electromagnetic valve is opened, and in the calorimetric module, band sulphur gases at high pressure pass into electrolytic cell through flowmeter.
(4), the gas that enters in electrolytic cell reduces in electrolytic solution band reducing substances environment, the magnitude of current that produces in oxidation-reduction process can be calculated acquisition by computer, then obtains sulfur content in coal sample.Concrete principle is described in detail in the People's Republic of China's GB standard GB/T214-2007 " full content of Sulphur in coal assay method ".
Claims (7)
1. a Unitary coal quality detecting device, is characterized in that, comprises calorimetric module, amount sulphur module and link block; Described link block comprises flowmeter and controllable electromagnetic valve, and the air stream outlet of calorimetric module connects the air intake opening of flowmeter through controllable electromagnetic valve by airflow line; The gas outlet of flowmeter is by airflow line connection amount sulphur module.
2. Unitary coal quality detecting device according to claim 1, it is characterized in that, described calorimetric module comprises pressure vessel and the interior bucket that is filled with water, interior bucket is placed in pressure vessel, be provided with the temperature sensor for detection of water temperature in interior bucket, the air stream outlet of pressure vessel is the air stream outlet of described calorimetric module.
3. Unitary coal quality detecting device according to claim 2, is characterized in that, controllable electromagnetic valve is arranged on the air flow outlet of calorimetric module.
4. Unitary coal quality detecting device according to claim 1, is characterized in that, described amount sulphur module comprises the container that fills electrolytic solution and be used for measuring the electrolytic circuit of sulfur content, and the outlet of the airflow line of connection traffic meter gas outlet extend in electrolytic solution.
5. according to claim 1-4 described Unitary coal quality detecting devices of any one, is characterized in that, stores air or inert gas in flowmeter.
6. based on the coal quality detecting method of the described Unitary coal quality detecting device of claim 1-4 any one, it is characterized in that, the throughput thermal modules detects the unit thermal value of coal sample to be measured, the air-flow of calorimetric module output is through link block inlet sulphur module, then throughput sulphur module adopts the electrolytic titration method to record the sulfur content of this coal sample.
7. coal quality detecting method according to claim 6, is characterized in that, the flowmeter of calorimetric module stores air or inert gas.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115824880A (en) * | 2022-12-27 | 2023-03-21 | 同方威视技术股份有限公司 | Coal quality analysis system |
| CN115839972A (en) * | 2022-12-27 | 2023-03-24 | 同方威视技术股份有限公司 | Metering device for ignition energy and heat detection equipment |
| CN115901856A (en) * | 2022-12-27 | 2023-04-04 | 同方威视技术股份有限公司 | Heat detection equipment |
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| CN1414380A (en) * | 2002-04-25 | 2003-04-30 | 谢安东 | Constant volume sampling flameless combustion type fuel gas caloric value determination apparatus |
| CN2566266Y (en) * | 2002-09-11 | 2003-08-13 | 长沙三德实业有限公司 | Improved constant temp. calorimeter |
| CN1529171A (en) * | 2003-09-19 | 2004-09-15 | 恒 林 | Coal five-index deferminator |
| EP1770390A1 (en) * | 2005-09-30 | 2007-04-04 | General Electric Company | Method, sensor and system for measuring a lower heating value and a wobbe index of a gaseous fuel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115824880A (en) * | 2022-12-27 | 2023-03-21 | 同方威视技术股份有限公司 | Coal quality analysis system |
| CN115839972A (en) * | 2022-12-27 | 2023-03-24 | 同方威视技术股份有限公司 | Metering device for ignition energy and heat detection equipment |
| CN115901856A (en) * | 2022-12-27 | 2023-04-04 | 同方威视技术股份有限公司 | Heat detection equipment |
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| CN103149239B (en) | 2015-04-22 |
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