Zhundong coal combustion experiment device

Abstract

The utility model discloses a Zhundong coal combustion experiment device which comprises a settling furnace, a feeding module, a separator and a flue gas analyzer, the settling furnace comprises a hearth and a lining, and the lining is arranged on the inner wall of the hearth in a replaceable mode. The feeding module is arranged at the top of the settling furnace and is used for feeding Zhundong coal powder and air into the hearth, so that the Zhundong coal powder is combusted in the hearth; the separator is connected with a bottom outlet of the settling furnace and is used for separating ash and flue gas after the Zhundong coal powder is burnt out; and the flue gas analyzer is connected with the separator and is used for analyzing the characteristics of the flue gas from the separator. The Zhundong coal combustion experiment device is suitable for Zhundong coal combustion experiment and Zhundong coal combustion characteristic analysis.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion characteristic test of Zhundong coal, in particular to a Zhundong coal combustion experimental device. Background Art

[0002] my country's Jungar region has rich coal reserves, but the coal in this region contains a large amount of alkali metals and alkaline earth metal elements, which can easily cause serious slagging and contamination inside the boiler furnace, resulting in reduced boiler heat transfer efficiency, unstable operating load and operational safety issues. If the boiler wants to operate stably and for a long time, it must have a certain understanding of the coal quality characteristics to avoid slagging and contamination. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a Zhundong coal combustion experimental device, which is suitable for Zhundong coal combustion experiments and analysis of the combustion characteristics of Zhundong coal.

[0004] The Zhundong coal combustion experimental device according to the embodiment of the utility model comprises:

[0005] A settling furnace, the settling furnace comprising a furnace and a lining, the lining being replaceably arranged on the inner wall of the furnace;

[0006] A feeding module, which is arranged at the top of the settling furnace and is used to feed Zhundong coal powder and air into the furnace so that the Zhundong coal powder burns in the furnace;

[0007] A separator, the separator is connected to the bottom outlet of the settling furnace and is used to separate ash and smoke after the Zhundong coal powder is burned out;

[0008] A flue gas analyzer is connected to the separator and is used to analyze the characteristics of the flue gas from the separator.

[0009] According to the Zhundong coal combustion experimental device of the embodiment of the utility model, the working process is: the feeding module continuously inputs Zhundong coal powder and air into the furnace, so that the Zhundong coal in the furnace burns for a long time, and at the same time, the ash and smoke generated by the combustion of Zhundong coal enter the separator, and the separator separates the ash and the smoke. The separator collects the ash as an ash sample for analysis and research, and at the same time, the smoke is discharged into the smoke analyzer, and the smoke analyzer analyzes the composition of the smoke. After the combustion of the Zhundong coal is completed, the liner is removed from the furnace, and the slag adhered to the removed liner is subjected to the slag performance analysis of the Zhundong coal.

[0010] It can be seen from the working process of the Zhundong coal combustion experimental device of the embodiment of the utility model that the Zhundong coal combustion experimental device of the embodiment of the utility model has the following advantages: by analyzing the slagging performance of Zhundong coal on the lining, collecting ash samples for analysis and research through the separator, and analyzing the flue gas components after combustion through the flue gas analyzer, the combustion characteristics of Zhundong coal can be tested to better understand the characteristics of Zhundong coal quality. Therefore, the Zhundong coal combustion experimental device of the embodiment of the utility model is suitable for Zhundong coal combustion experiments and analyzing the combustion characteristics of Zhundong coal.

[0011] In some embodiments, the liner can be made of different materials.

[0012] In some embodiments, the feeding module includes a burner and a feeder, the burner is arranged on the top of the settling furnace, the feeder is connected to the burner, the feeder is used to input Zhundong coal powder into the burner, the burner is used to feed the Zhundong coal powder input by the feeder into the furnace and to transport air or oxygen into the furnace.

[0013] In some embodiments, the burner includes a coal powder channel and an air supply channel; the lower end of the coal powder channel and the lower end of the air supply channel are both connected to the furnace, the upper end of the coal powder channel is connected to the feeder, and the upper part of the coal powder channel is connected to a primary air supply inlet, and the primary air supply inlet is used to introduce an air flow or an oxygen flow to deliver the Zhundong coal powder input into the coal powder channel by the feeder into the furnace; the upper end of the air supply channel is connected to a secondary air supply inlet, and the secondary air supply inlet is used to introduce air or oxygen to deliver air or oxygen into the furnace.

[0014] In some embodiments, the burner also includes a rectifying plate, which is arranged on the inner top wall of the furnace, the lower end of the pulverized coal channel passes through the rectifying plate, and the lower end of the air supply channel is located above the rectifying plate and close to the rectifying plate.

[0015] In some embodiments, the burner further includes a cooling assembly, wherein the cooling assembly is used to cool the burner.

[0016] In some embodiments, a burnout air duct is further included, wherein the burnout air duct passes through the lower end of the settling furnace, and one end of the burnout air duct extends upward from the bottom of the furnace, and the other end of the burnout air duct is located outside the settling furnace, and the burnout air duct is used to supply air or oxygen into the furnace.

[0017] In some embodiments, the separator is a cyclone separator; the separator is connected to the bottom outlet of the settling furnace through a first pipeline.

[0018] In some embodiments, a second pipeline is passed between the separator and the flue gas analyzer, and an induced draft fan is provided on the second pipeline.

[0019] In some embodiments, a third pipeline is further included, one end of which is connected to the second pipeline and is located between the induced draft fan and the flue gas analyzer, and an exhaust valve is provided on the third pipeline.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of a Zhundong coal combustion experimental device according to an embodiment of the present utility model.

[0023] Reference numerals:

[0024] Zhundong coal combustion experimental device 1000; settling furnace 1; furnace 101; lining 102; first furnace body 103; second furnace body 104; feeding module 2; feeder 201; burner 202; coal powder channel 2021; air supply channel 2022; primary air supply inlet 2023; secondary air supply inlet 2024; rectifier 2025; cooling assembly 2026; circulating water inlet 20261; circulating water outlet 20262; separator 3; flue gas analyzer 4; burnout air duct 5; first pipeline 6; second pipeline 7; induced draft fan 8; third pipeline 9; drain valve 10; acute angle α. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] Combine the following Figure 1 To describe the Zhundong coal combustion experimental device 1000 according to an embodiment of the present utility model.

[0027] like Figure 1 As shown, the Zhundong coal combustion experimental device 1000 according to an embodiment of the utility model includes a settling furnace 1, a feeding module 2, a separator 3 and a flue gas analyzer 4.

[0028] Among them, the settling furnace 1 includes a furnace 101 and a lining 102, and the lining 102 is replaceably arranged on the inner wall of the furnace 101. In this way, the Zhundong coal powder burns for a long time in the furnace 101, and the slag produced adheres to the lining 102. After the combustion is completed, the lining 102 with slag can be removed from the furnace 101 and replaced with a new lining 102. The material of the new lining 102 can be different from the material of the removed lining 102 with slag, and the slag on the removed lining 102 can be used to analyze and study the slag performance of Zhundong coal. In other words, by arranging a removable lining 102 on the inner wall of the furnace 101, on the one hand, the slag performance of Zhundong coal can be conveniently analyzed and studied, and on the other hand, it can be used to study the slag contamination of Zhundong coal burning on different materials.

[0029] The feeding module 2 is arranged at the top of the settling furnace 1, and is used to feed Zhundong coal powder and air into the furnace 101, so that the Zhundong coal powder is burned in the furnace 101. The feeding module 2 continuously feeds Zhundong coal powder and air into the furnace 101, ensuring that the combustion of Zhundong coal in the furnace 101 can be sustained for a long time, so as to meet the requirements of the Zhundong coal combustion experiment.

[0030] The separator 3 is connected to the bottom outlet of the settling furnace 1, and is used to separate the ash and smoke after the Zhundong coal powder is burned. That is to say, the bottom outlet of the settling furnace 1 is connected to the furnace 101, and the ash and smoke generated by the combustion of the Zhundong coal powder in the furnace 101 are discharged from the bottom outlet of the settling furnace 1 and enter the separator 3, and the separator 3 separates the ash and the smoke, and the separator 3 collects the ash as an ash sample for analysis and research, and discharges the smoke at the same time.

[0031] The flue gas analyzer 4 is connected to the separator 3 and is used to analyze the characteristics of the flue gas from the separator 3. That is, the separator 3 discharges the separated flue gas into the flue gas analyzer 4, and the flue gas analyzer 4 analyzes the components of the flue gas.

[0032] According to the Zhundong coal combustion experimental device 1000 of the embodiment of the utility model, the working process is: the feeding module 2 continuously inputs Zhundong coal powder and air into the furnace 101, so that the Zhundong coal in the furnace 101 burns for a long time. At the same time, the ash and smoke generated by the combustion of the Zhundong coal enter the separator 3, and the separator 3 separates the ash and the smoke. The separator 3 collects the ash as an ash sample for analysis and research, and at the same time, the smoke is discharged into the smoke analyzer 4, and the smoke analyzer 4 analyzes the composition of the smoke. After the combustion of the Zhundong coal is completed, the liner 102 is removed from the furnace 101, and the slag adhered to the removed liner 102 is subjected to the slag performance analysis of the Zhundong coal.

[0033] From the working process of the Zhundong coal combustion experimental device 1000 of the embodiment of the utility model, it can be known that the Zhundong coal combustion experimental device 1000 of the embodiment of the utility model has the following advantages: by analyzing the slagging performance of Zhundong coal on the lining 102, collecting ash samples for analysis and research through the separator 3, and analyzing the flue gas components after combustion through the flue gas analyzer 4, the combustion characteristics of Zhundong coal are tested to better understand the characteristics of Zhundong coal quality. Therefore, the Zhundong coal combustion experimental device 1000 of the embodiment of the utility model is suitable for Zhundong coal combustion experiments and analyzing the combustion characteristics of Zhundong coal.

[0034] In some embodiments, the liner 102 can be made of different materials. That is, the same liner 102 has the same material, and different liners 102 have different materials. In this way, different liners 102 can be used to study the slagging and contamination of Zhundong coal combustion on different materials.

[0035] In some embodiments, the settling furnace 1 can be divided into a detachable first furnace body 103 and a second furnace body 104 , so that the lining 102 can be easily disassembled and replaced.

[0036] In some embodiments, the feeding module 2 includes a burner 202 and a feeder 201. The burner 202 is arranged on the top of the settling furnace 1. The feeder 201 is connected to the burner 202. The feeder 201 is used to input the Zhundong coal powder into the burner 202. The burner 202 is used to feed the Zhundong coal powder input by the feeder 201 into the furnace 101 and to transport air or oxygen into the furnace 101.

[0037] In some embodiments, the burner 202 includes a pulverized coal channel 2021 and an air supply channel 2022; the lower ends of the pulverized coal channel 2021 and the lower ends of the air supply channel 2022 are both connected to the furnace 101, the upper end of the pulverized coal channel 2021 is connected to the feeder 201, and the upper part of the pulverized coal channel 2021 is connected to the primary air supply inlet 2023, and the primary air supply inlet 2023 is used to introduce air flow or oxygen flow to feed the feeder 201 into the pulverized coal channel 2021. Into the furnace 101; that is, while the feeder 201 continuously inputs Zhundong coal powder into the coal powder channel 2021, the primary air supply inlet 2023 continuously introduces air flow or oxygen flow, and the air flow or oxygen flow enters the coal powder channel 2021 and mixes with the coal powder and blows the Zhundong coal powder into the furnace 101, which is convenient for the Zhundong coal powder to not block the coal powder channel 2021, and on the other hand, it is conducive to the Zhundong coal powder to be dispersed as much as possible in the furnace 101 for combustion. In addition, the feeder 201 can also adjust the feeding speed and feeding amount of the Zhundong coal powder. The upper end of the air supply channel 2022 is connected to the secondary air supply inlet 2024, and the secondary air supply inlet 2024 is used to introduce air or oxygen to transport air or oxygen into the furnace 101; that is, the secondary air supply inlet 2024 introduces air or oxygen, which enters the furnace 101 through the air supply channel 2022 for combustion of the Zhundong coal powder.

[0038] In some embodiments, the angle α between the primary air supply inlet 2023 and the pulverized coal channel 2021 is an acute angle. Preferably, the acute angle α is 45°.

[0039] In some embodiments, the burner 202 further includes a rectifying plate 2025, which is disposed on the inner top wall of the furnace 101, the lower end of the pulverized coal channel 2021 passes through the rectifying plate 2025, and the lower end of the air supply channel 2022 is located above and close to the rectifying plate 2025. By providing the rectifying plate 2025, the air flow or oxygen flow discharged from the air supply channel 2022 can enter the furnace 101 more evenly after passing through the rectifying plate 2025, which is conducive to the full combustion of the Zhundong coal pulverized coal. At the same time, the rectifying plate 2025 will not affect the entry of the Zhundong coal pulverized coal into the furnace 101.

[0040] In some embodiments, the burner 202 further includes a cooling component 2026 , which is used to cool the burner 202 to ensure that the Zhundong coal powder does not burn in the burner 202 .

[0041] In some embodiments, the air supply channel 2022 is sleeved on the outer periphery of the coal powder channel 2021, and the cooling assembly 2026 is arranged around the outer periphery of the air supply channel 2022. In this way, the burner 202 has a reasonable and compact structure, and the cooling assembly 2026 has a good cooling effect on the burner 202.

[0042] In some embodiments, the cooling component 2026 is a water cooling component, but it is not limited thereto, and the cooling component 2026 may also be other types of cooling components 2026. When the cooling component 2026 is a water cooling component, the water cooling component has a circulating water inlet 20261 and a circulating water outlet 20262. The low-temperature cooling water enters the water cooling component from the circulating water inlet 20261, takes away the heat of the gas, and is discharged from the circulating water outlet 20262.

[0043] In some embodiments, a burnout air duct 5 is further included, the burnout air duct 5 passes through the lower end of the settling furnace 1, and one end of the burnout air duct 5 extends upward from the bottom of the furnace 101, and the other end of the burnout air duct 5 is located outside the settling furnace 1, and the burnout air duct 5 is used to supply air or oxygen into the furnace 101. By providing the burnout air duct 5, it can be further ensured that the Zhundong coal powder is fully burned and burned out.

[0044] In some embodiments, the separator 3 is a cyclone separator, which has a simple structure and good separation effect, and can collect ash and discharge flue gas; the separator 3 is connected to the bottom outlet of the settling furnace 1 through the first pipeline 6, so that the ash and flue gas generated by the combustion of the Zhundong coal powder in the furnace 101 can enter the cyclone separator 3 through the bottom outlet of the settling furnace 1 and the first pipeline 6.

[0045] In some embodiments, a second pipeline 7 is passed between the separator 3 and the flue gas analyzer 4 , and an induced draft fan 8 is provided on the second pipeline 7 , so that the induced draft fan 8 can introduce the flue gas discharged from the separator 3 into the flue gas analyzer 4 through the second pipeline 7 .

[0046] In some embodiments, a third pipeline 9 is further included, one end of which is connected to the second pipeline 7 and is located between the induced draft fan 8 and the flue gas analyzer 4, and a drain valve 10 is provided on the third pipeline 9. In this way, when the flue gas analyzer 4 has finished analyzing the flue gas components, the drain valve 10 can be opened to drain the flue gas in the flue gas analyzer 4.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A Zhundong coal combustion experimental device, characterized in that: include: A settling furnace, the settling furnace comprising a furnace and a lining, the lining being replaceably arranged on the inner wall of the furnace; A feeding module, which is arranged at the top of the settling furnace and is used to feed Zhundong coal powder and air into the furnace so that the Zhundong coal powder burns in the furnace; A separator, the separator is connected to the bottom outlet of the settling furnace and is used to separate ash and smoke after the Zhundong coal powder is burned out; A flue gas analyzer is connected to the separator and is used to analyze the characteristics of the flue gas from the separator.

2. The Zhundong coal combustion experimental device according to claim 1, characterized in that: The inner lining can be made of different materials.

3. The Zhundong coal combustion experimental device according to claim 1, characterized in that: The feeding module includes a burner and a feeder. The burner is arranged on the top of the settling furnace. The feeder is connected to the burner. The feeder is used to input Zhundong coal powder into the burner. The burner is used to feed the Zhundong coal powder input by the feeder into the furnace and to transport air or oxygen into the furnace.

4. The Zhundong coal combustion experimental device according to claim 3, characterized in that: The burner includes a coal powder channel and an air supply channel; the lower ends of the coal powder channel and the air supply channel are both connected to the furnace, the upper end of the coal powder channel is connected to the feeder, and the upper part of the coal powder channel is connected to a primary air supply inlet, and the primary air supply inlet is used to introduce an air flow or an oxygen flow to deliver the Zhundong coal powder input into the coal powder channel by the feeder into the furnace; the upper end of the air supply channel is connected to a secondary air supply inlet, and the secondary air supply inlet is used to introduce air or oxygen to deliver air or oxygen into the furnace.

5. The Zhundong coal combustion experimental device according to claim 4, characterized in that: The burner also includes a rectifying plate, which is arranged on the inner top wall of the furnace, the lower end of the pulverized coal channel passes through the rectifying plate, and the lower end of the air supply channel is located above the rectifying plate and close to the rectifying plate.

6. The Zhundong coal combustion experimental device according to claim 4, characterized in that: The burner further comprises a cooling assembly, wherein the cooling assembly is used for cooling the burner.

7. The Zhundong coal combustion experimental device according to claim 1, characterized in that: It also includes a burnout air duct, which passes through the lower end of the settling furnace, and one end of the burnout air duct extends upward from the bottom of the furnace, and the other end of the burnout air duct is located outside the settling furnace, and the burnout air duct is used to supply air or oxygen into the furnace.

8. The Zhundong coal combustion experimental device according to any one of claims 1 to 7, characterized in that: The separator is a cyclone separator; the separator is connected to the bottom outlet of the settling furnace through a first pipeline.

9. The Zhundong coal combustion experimental device according to any one of claims 1 to 7, characterized in that: A second pipeline is passed between the separator and the flue gas analyzer, and an induced draft fan is arranged on the second pipeline.

10. The Zhundong coal combustion experimental device according to claim 9, characterized in that: It also includes a third pipeline, one end of which is connected to the second pipeline and is located between the induced draft fan and the flue gas analyzer, and an exhaust valve is provided on the third pipeline.

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