LU504489B1 - Ash water calorific value instrument for measuring coal quality of thermal power units - Google Patents
Ash water calorific value instrument for measuring coal quality of thermal power units Download PDFInfo
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- LU504489B1 LU504489B1 LU504489A LU504489A LU504489B1 LU 504489 B1 LU504489 B1 LU 504489B1 LU 504489 A LU504489 A LU 504489A LU 504489 A LU504489 A LU 504489A LU 504489 B1 LU504489 B1 LU 504489B1
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- measuring
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- calorific value
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- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 238000005070 sampling Methods 0.000 claims abstract description 49
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims description 38
- 239000000843 powder Substances 0.000 claims description 37
- 238000001035 drying Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 17
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000003851 biochemical process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N2001/2007—Flow conveyors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Provided is an ash water calorific value instrument for measuring coal quality of thermal power units, and the instrument includes: a sampling mechanism, the sampling mechanism is used for collecting a coal sample; a measuring mechanism, the measuring mechanism is used for detecting quality and composition of a sample; an ash water calorific value detecting mechanism, the ash water calorific value detecting mechanism is used for detecting an ash value, a moisture value and a calorific value of the coal sample; and a control unit, the control unit is used for controlling operation state of the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism. The coal quality is performed graded detection, so as to reduce interaction between the moisture value, ash value and heat.
Description
Ash water calorific value instrument for measuring coal quality of 7594489 thermal power units
The present invention relates to the technical field of calorific value measurement, in particular to an ash water calorific value instrument for measuring coal quality of thermal power units.
Background technology
As one of the main energies used in China, coal is a solid and flammable mineral, and is mainly produced from plant remains buried by biochemical processes and then transformed by geological processes. Due to the supply safety problem is also an important link in energy safety of China, generally, an ash water calorific value instrument is used for detecting the coal. The ash water calorific value instrument is an instrument for detecting and analyzing ash, moisture, calorific values and other indexes contained in the coal. Based on the coal quality data of a blended coal, and according to the designed coal-burning characteristics of a boiler, mixed coal types and proportion are controlled reasonably, so as to achieve a purpose of reducing unnecessary fuel waste when the safe operation conditions of the boiler is satisfied.
Currently, most ash water calorific value instruments directly detect moisture, ash and heat generated form coal combustion, but this method is prone to uneven heating of coal, which leads to inaccurate detection data. Moreover, these three data are detected at the same time, resulting in a mutual influence of the three values, so that the final data is affected. Therefore, an ash water calorific value instrument for measuring coal quality of thermal power units is urgently needed to realize graded detection of coal quality.
The present invention provides an ash water calorific value instrument for measuring coal quality of thermal power units, and solves the problems of insufficient combustion, interaction of a moisture value, an ash value and heat in coal detection.
The present invention provides an ash water calorific value instrument for measuring coal quality of thermal power units, including: a sampling mechanism, the sampling mechanism is used for collecting a coal sample and processing the coal sample into powder; a measuring mechanism, the measuring mechanism is used for detecting quality and composition of a sample; an ash water calorific value detecting mechanism, the ash water calorific value detecting mechanism is used for detecting an ash value, a moisture value and a calorific value of the coal sample; and LU504489 a control unit; the control unit is electrically connected to the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism; and the control unit is used for controlling operation state of the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism.
In some examples of the present application, a structure of the sampling mechanism 1s improved, so that the sample is easy to be collected and transmitted to the measuring mechanism through the sampling mechanism; and the sampling mechanism includes a sampling machine, a crusher and a cyclone separator; the sampling machine is connected to the crusher through a delivery pipe; a sample outlet of the sampling machine is provided with a jet conveyor; and the jet conveyor is inserted at an end, close to the sample outlet of the sampling mechanism, of the delivery pipe; and the crusher is used for processing the sample collected by the sampling machine to powder; an outlet of the crusher is connected to an inlet of the cyclone separator; a lower end of the cyclone separator is provided with an outlet for the sample powder; and an upper end of the cyclone separator is provided with a gas outlet.
In some examples of the present application, a structure of the measuring mechanism is improved, so that the quality and composition of the sample powder can be detected easily; and the measuring mechanism includes a temporary storage warehouse, a measuring warehouse and an X fluorescence analyzer; the temporary storage warehouse is connected to the measuring warehouse; a bottom of the temporary storage warehouse is provided with a warehouse door; and the warehouse door is used for separating the temporary storage warehouse and the measuring warehouse; and a side of the measuring warehouse is provided with an analysis window; the X fluorescence analyzer is provided to the analysis window of the measuring warehouse; and the X fluorescence analyzer is used for detecting the composition of the sample powder.
In some examples of the present application, an installation structure of the temporary storage warehouse is improved, so as to facilitate the temporary storage warehouse to store the sample and control the sample to be in a proper content; the temporary storage warehouse is provided with a first sensor internally; the first sensor is used for detecting the quality of the sample inside the temporary storage warehouse; and the control unit is used for controlling whether the sampling mechanism stops sampling according to the quality signal of the first
Sensor.
In some examples of the present application, an installation structure of the measuring warehouse is improved, so as to facilitate the measuring warehouse to measure the quality and composition of the sample powder; the temporary warehouse is provided with a second sensb}/504489 internally; the second sensor is used for detecting the quality of the sample inside the temporary warehouse; and the control unit is used for controlling the opening and closing of the warehouse door according to the quality signal of the second sensor.
In some examples of the present application, the composition of the ash water calorific value detecting mechanism is improved, so as to facilitate detection of the ash value, moisture value and calorific value of the coal sample; and the ash water calorific value detecting mechanism includes a drying tank and a combustion tank; and the drying tank is used for drying the sample powder; the drying tank is connected to the combustion tank; and the combustion tank is used for full combustion of the sample powder.
In some examples of the present application, a structure of the drying tank is improved, so as to enable the detection of the quality of the coal sample before and after drying, so that the moisture value of the coal sample is calculated; and the drying tank is provided with a third sensor internally; the third sensor is used for detecting the quality of the sample powder before and after drying and transmitting to the control unit; and the control unit determines the moisture value of the coal according to the quality of the sample powder before and after drying.
In some examples of the present application, a structure of the combustion tank is improved, so as to enable the detection of the quality of the coal sample before and after combustion, so that the ash value of the coal sample is calculated easily; and the combustion tank 1s provided with a fourth sensor internally; the fourth sensor is used for detecting the quality of the sample powder before and after combustion and transmitting the quality to the control unit; and the control unit determines the ash value of the coal according to the quality of the sample powder before and after combustion.
In some examples of the present application, a structure of the combustion tank is improved, so that a thermal energy sensor can detect the heat of coal sample during combustion; and the thermal energy sensor is also provided inside the combustion tank for detecting the heat during combustion of the coal.
Provided is an ash water calorific value instrument for measuring coal quality of thermal power units, and the instrument includes: a sampling mechanism, the sampling mechanism is used for collecting a coal sample and processing the coal sample to powder; a measuring mechanism, the measuring mechanism is used for detecting quality and composition of a sample; an ash water calorific value detecting mechanism, the ash water calorific value detecting mechanism is used for detecting an ash value, a moisture value and a calorific value of the coal sample; and a control unit, the control unit is electrically connected to the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism; and the control unit is used for controlling operation state of the sampling mechanism, measuring mechanisht/504489 and ash water calorific value detecting mechanism. The coal is combusted fully and the coal quality is detected, so as to reduce interaction between the moisture value, ash value and heat.
The sampling mechanism quickly processes large particle samples into sample powder, so as to improve uniformity of the sample, so that the collected sample is more representative, and analysis accuracy is improved. The X fluorescence analyzer having low energy is used for analysis, so that radiation to operators is reduced and safety is higher. The sample powder falls into the measuring warehouse under the action of gravity, so that the uniformity of the sample in the measuring warehouse is improved, and the sample falling into the measuring warehouse keeps same density, thus improving stability and precision of analysis results.
Technical solutions of the present invention are described further in detail with reference to the accompanying drawings and examples below.
Description of attached drawings
FIG. 1 is a structural diagram of an ash water calorific value instrument for measuring coal quality of thermal power units according to the present invention.
Specific embodiments
Technical solutions of the present invention is described further with reference to the accompanying drawings and examples below.
It should be noted that the detailed description below are exemplary and are intended to provide a further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as those generally understood by ordinary skilled in the technical field to which the present invention belongs.
It should be noted that the terms used herein only for describing the specific embodiments, rather than intending to limit exemplary embodiments according to the present invention. The terms used herein, unless otherwise expressly stated in the context, a singular form is also intended to include a plural form. Moreover, it should also be understood that when the terms “include” and/or “comprise” are used in this specification, it indicates the existence of features, steps, operations, devices, components and/or combinations of them, without excluding other components or objects. The similar words as “first” and “second” used in the present invention do not indicate any order, quantity or importance, but are used merely to distinguish different components. The orientation or state relations indicated by the terms “up”, “down”, “left”, “right”, “front”, “rear”, “vertical” “horizontal”, “side”, “bottom”, etc. are based on those shown in the accompanying drawings, and are determined relation terms merely for the ease of describing the structural relationship of the components or elements of the present invention, rather than specifically referring to any component or element of the present invention, and therefore cannot be interpreted as limiting the present disclosure. The terms “fixed connection? 504489 “connection”, “be connected to’ should be understood in a broad sense. The connection can be fixed connection, integrated connection, detachable connection, direct connection or indirect connection through an intermediate medium. For those related scientific research or technical 5 skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances, and cannot be interpreted as limiting the present invention.
As one of the main energies used in China, coal is a solid and flammable mineral, and is mainly produced from plant remains buried by biochemical processes and then transformed by geological processes. Due to the supply safety problem is also an important link in energy safety of China, generally, an ash water calorific value instrument is used for detecting the coal. The ash water calorific value instrument is an instrument for detecting and analyzing ash, moisture, calorific values and other indexes contained in the coal. Based on the coal quality data of a blended coal, and according to the designed coal-burning characteristics of a boiler, mixed coal types and proportion are controlled reasonably, so as to achieve a purpose of reducing unnecessary fuel waste when the safe operation conditions of the boiler is satisfied.
Currently, most ash water calorific value instruments directly detect moisture, ash and heat generated form coal combustion, but this method is prone to uneven heating of coal, which leads to inaccurate detection data. Moreover, these three data are detected at the same time, resulting in a mutual influence of the three values, so that the final data is affected. Therefore, an ash water calorific value instrument for measuring coal quality of thermal power units is urgently needed to realize graded detection of coal quality.
FIG. 1 is a structural diagram of an ash water calorific value instrument for measuring coal quality of thermal power units according to the present invention. As shown in FIG. 1, including: a sampling mechanism, the sampling mechanism is used for collecting a coal sample and processing the coal sample into powder; a measuring mechanism, the measuring mechanism is used for detecting quality and composition of a sample; an ash water calorific value detecting mechanism, the ash water calorific value detecting mechanism is used for detecting an ash value, a moisture value and a calorific value of the coal sample; and a control unit; the control unit is electrically connected to the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism; and the control unit is used for controlling operation state of the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism. LU504489
In some examples of the present application, a structure of the sampling mechanism is improved, so that the sample is easy to be collected and transmitted to the measuring mechanism through the sampling mechanism; and the sampling mechanism includes a sampling machine, a crusher and a cyclone separator.
The sampling machine is connected to the crusher through a delivery pipe; a sample outlet of the sampling machine is provided with a jet conveyor; and the jet conveyor is inserted at an end, close to the sample outlet of the sampling mechanism, of the delivery pipe.
The crusher is used for processing the sample collected by the sampling machine to powder; an outlet of the crusher is connected to an inlet of the cyclone separator; a lower end of the cyclone separator is provided with an outlet for the sample powder; and an upper end of the cyclone separator is provided with a gas outlet.
In the example, a jet conveyor is used for transporting the sample, which simplifies the overall device structure and the transportation of the sample is faster.
In some examples of the present application, a structure of the measuring mechanism is improved, so that the quality and composition of the sample powder can be detected easily; and the measuring mechanism includes a temporary warehouse, a measuring warehouse and an X fluorescence analyzer.
The temporary storage warehouse is connected to the measuring warehouse; a bottom of the temporary storage warehouse is provided with a warehouse door; and the warehouse door is used for separating the temporary storage warehouse and the measuring warehouse.
A side of the measuring warehouse is provided with an analysis window; the X fluorescence analyzer is provided to the analysis window of the measuring warehouse; and the X fluorescence analyzer is used for detecting the composition of the sample powder.
In some examples of the present application, an installation structure of the temporary storage warehouse is improved, so as to facilitate the temporary storage warehouse to store the sample and control the sample to be in a proper content; the temporary storage warehouse is provided with a first sensor internally; the first sensor is used for detecting the quality of the sample inside the temporary storage warehouse; and the control unit is used for controlling whether the sampling mechanism stops sampling according to the quality signal of the first
Sensor.
In some examples of the present application, an installation structure of the measuring warehouse is improved, so as to facilitate the measuring warehouse to measure the quality and composition of the sample powder; the temporary warehouse is provided with a second sensor internally; the second sensor is used for detecting the quality of the sample inside the temporary warehouse; and the control unit is used for controlling the opening and closing of the warehouté/504489 door according to the quality signal of the second sensor.
In some examples of the present application, the composition of the ash water calorific value detecting mechanism is improved, so as to facilitate detection of the ash value, moisture value and calorific value of the coal sample; and the ash water calorific value detecting mechanism includes a drying tank and a combustion tank.
The drying tank is used for drying the sample powder; the drying tank is connected to the combustion tank; and the combustion tank is used for full combustion of the sample powder.
In some examples of the present application, a structure of the drying tank is improved, so as to enable the detection of the quality of the coal sample before and after drying, so that the moisture value of the coal sample is calculated; and the drying tank is provided with a third sensor internally; the third sensor is used for detecting the quality of the sample powder before and after drying and transmitting the quality to the control unit; and the control unit determines the moisture value of the coal according to the quality of the sample powder before and after drying.
In some examples of the present application, a structure of the combustion tank is improved, so as to enable the detection of the quality of the coal sample before and after combustion, so that the ash value of the coal sample is calculated easily; and the combustion tank is provided with a fourth sensor internally; the fourth sensor is used for detecting the quality of the sample powder before and after combustion and transmitting the quality to the control unit; and the control unit determines the ash value of the coal according to the quality of the sample powder before and after combustion.
In some examples of the present application, a structure of the combustion tank is improved, so as to facilitate the detection of heat during coal sample combustion by a thermal energy sensor, and the thermal energy sensor is also provided inside the combustion tank for detecting the heat during combustion of the coal.
In the example, detection results from an overall detection process of the coal sample are automatically uploaded to a master computer, and are displayed in the master computer, so that the results can be viewed by a detection personnel easily, realizing a whole automatic and intelligent detection process.
Finally, it should be noted that: the examples described above are merely illustrative of the technical solution of the present invention, and not to limit the present invention. Although the present invention is described in detail with reference to the preferred examples, it should be understood by those ordinary skilled in the art that: the technical solution of the present invention can still be modified or replaced equivalently, and these modifications or equivalent substitutions can not make the modified technical solution out of the spirit and scope of the technical solutid:#504489 of the present invention.
Claims (9)
1. An ash water calorific value instrument for measuring coal quality of thermal power units, comprising: a sampling mechanism, the sampling mechanism 1s used for collecting a coal sample and processing the coal sample into powder; a measuring mechanism, the measuring mechanism is used for detecting quality and composition of a sample; an ash water calorific value detecting mechanism, the ash water calorific value detecting mechanism is used for detecting an ash value, a moisture value and a calorific value of the coal sample; and a control unit; the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism are connected in sequence; the control unit is electrically connected to the sampling mechanism, measuring mechanism and the ash water calorific value detecting mechanism; and the control unit is used for controlling operation state of the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism.
2. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 1, wherein the sampling mechanism comprises a sampling machine, a crusher and a cyclone separator; the sampling machine is connected to the crusher through a delivery pipe; a sample outlet of the sampling machine is provided with a jet conveyor; and the jet conveyor is inserted at an end, close to the sample outlet of the sampling mechanism, of the delivery pipe; and the crusher is used for processing the sample collected by the sampling machine to powder; an outlet of the crusher is connected to an inlet of the cyclone separator; a lower end of the cyclone separator is provided with an outlet for the sample powder; and an upper end of the cyclone separator is provided with a gas outlet.
3. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 1, wherein the measuring mechanism comprises a temporary storage warehouse, a measuring warehouse and an X fluorescence analyzer; the temporary storage warehouse is connected to the measuring warehouse; a bottom of the temporary storage warehouse is provided with a warehouse door; and the warehouse door is used for separating the temporary storage warehouse and the measuring warehouse; and a side of the measuring warehouse is provided with an analysis window; the X fluorescence analyzer is provided to the analysis window of the measuring warehouse; and the X fluorescence analyzer is used for detecting the composition of the sample powder. LU504489
4. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 3, wherein the temporary storage warehouse is provided with a first sensor internally; the first sensor is used for detecting the quality of the sample inside the temporary storage warehouse; and the control unit is used for controlling whether the sampling mechanism stops sampling according to the quality signal of the first sensor.
5. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 3, wherein the measuring warehouse is provided with a second sensor internally; the second sensor is used for detecting the quality of the sample inside the measuring warehouse; and the control unit is used for controlling the opening and closing of the warehouse door according to the quality signal of the second sensor.
6. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 1, wherein the ash water calorific value instrument comprises a drying tank and a combustion tank; and the drying tank is used for drying the sample powder; the drying tank is connected to the combustion tank; and the combustion tank is used for full combustion of the sample powder.
7. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 6, wherein the drying tank is provided with a third sensor internally; the third sensor is used for detecting the quality of the sample powder before and after drying and transmitting the quality to the control unit; and the control unit determines the moisture value of the coal according to the quality of the sample powder before and after drying.
8. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 6, wherein the combustion tank is provided with a fourth sensor internally; the fourth sensor is used for detecting the quality of the sample powder before and after combustion and transmitting the quality to the control unit; and the control unit determines the ash value of the coal according to the quality of the sample powder before and after combustion.
9. The ash water calorific value instrument for measuring coal quality of thermal power units according to claim 8, wherein the combustion tank is further provided with a thermal energy sensor; and the thermal energy sensor is used for detecting heat during combustion of the coal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211485377 | 2022-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504489B1 true LU504489B1 (en) | 2023-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504489A LU504489B1 (en) | 2022-11-24 | 2023-06-13 | Ash water calorific value instrument for measuring coal quality of thermal power units |
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| Country | Link |
|---|---|
| LU (1) | LU504489B1 (en) |
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2023
- 2023-06-13 LU LU504489A patent/LU504489B1/en active IP Right Grant
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