CN218003025U - Flying ash ammonia sampling and analyzing device - Google Patents
Flying ash ammonia sampling and analyzing device Download PDFInfo
- Publication number
- CN218003025U CN218003025U CN202221870783.5U CN202221870783U CN218003025U CN 218003025 U CN218003025 U CN 218003025U CN 202221870783 U CN202221870783 U CN 202221870783U CN 218003025 U CN218003025 U CN 218003025U
- Authority
- CN
- China
- Prior art keywords
- sampling
- tank
- ammonia
- fly ash
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an ammonia sampling and analyzing device in fly ash, which comprises a sampling tank, wherein the bottom of the sampling tank is filled with an ash sample collecting ball, the lower part of the sampling tank is connected with an inlet pipeline, the top of the sampling tank is connected with an outlet pipeline, a plurality of ash blocking plates which are arranged in a downward inclination manner are arranged in the sampling tank, and a filter is also arranged in the upper part of the sampling tank; the inlet pipeline is used for introducing flue gas, sweeping gas or ammonia absorption liquid, and correspondingly, the outlet pipeline is used for outputting the flue gas, the volatile gas or the ammonia absorption liquid; when the outlet pipeline is used for outputting the volatile gas, the outlet pipeline is connected with an absorption tank, and ammonia absorption liquid is arranged in the absorption tank; the bottom of the sampling tank is provided with a heating device which volatilizes the gas on the surface of the fly ash. The device can complete the collection, sealing, heat treatment analysis of ammonia content and the dissolution analysis of ammonia content of the fly ash, can analyze the ammonia content on the surface and inside of the fly ash, and can avoid component loss caused by the turnover of collected samples.
Description
Technical Field
The utility model relates to a flue gas denitration technical field, in particular to ammonia sampling analytical equipment in flying dust for the ammonia escape condition of analysis flue gas denitration export.
Background
The ammonia escaping from the flue gas denitration is mainly absorbed by the fly ash of the dust remover, and the ammonia escaping condition of the denitration outlet in the flue gas can be reflected by detecting the ammonia content in the fly ash. By researching the detection method of the ammonia content in the fly ash and researching the coupling relation between the ammonia in the fly ash and the concentration of the escaping ammonia in the flue gas, the ammonia escaping condition of the denitration equipment is monitored by detecting the ammonia in the fly ash, the limitation of the current ammonia escaping detection instrument can be effectively made up, and the operation management level of the flue gas denitration equipment is further improved.
The ammonia content in the fly ash is determined by sampling, transferring and quantitative analysis in the traditional method for detecting ammonia in the fly ash. Ammonia is extremely volatile due to its instability, and therefore can be volatilized in large quantities during sampling, storage and analysis, resulting in distortion of results. In addition, the traditional sample measuring method cannot distinguish the difference between the ammonia content on the ash surface and the ammonia content on the substrate.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide an ammonia sampling analytical equipment in flying dust, the device can accomplish the collection of flying dust, seal, thermal treatment analysis ammonia content and dissolve analysis ammonia content, not only can analyze flying dust surface and inside ammonia content, can also avoid the component that the sample turnover of collection leads to run off.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a flying ash ammonia sampling analysis device comprises a sampling tank, wherein the bottom of the sampling tank is filled with an ash sample collecting ball, the lower part of the sampling tank is connected with an inlet pipeline, the top of the sampling tank is connected with an outlet pipeline, a plurality of ash blocking plates which are arranged in a downward inclination manner are arranged in the sampling tank, and a filter is also arranged in the upper part of the sampling tank; the inlet pipeline is used for introducing flue gas, scavenging gas or ammonia absorption liquid, and correspondingly, the outlet pipeline is used for outputting the flue gas, volatile gas or ammonia absorption liquid; when the outlet pipeline is used for outputting the volatile gas, the outlet pipeline is connected with an absorption tank, and ammonia absorption liquid is arranged in the absorption tank; and a heating device for volatilizing the gas on the surface of the fly ash is arranged at the bottom of the sampling tank.
Furthermore, valves are installed on the inlet pipeline and the outlet pipeline.
Further, when the outlet pipeline is used for outputting the volatile gas, the outlet pipeline is connected with the absorption tank through the micro-circulation pump.
Furthermore, when the outlet pipeline is used for outputting the volatile gas, the gas outlet of the absorption tank is connected with the inlet pipeline through the circulating pipeline, so that the non-absorbed volatile gas enters the sampling tank as purge gas to circulate.
Furthermore, a flow guide hole is formed in the ash blocking plate.
Furthermore, the sampling tank comprises a sampling upper tank and a sampling bottom tank, the sampling upper tank is composed of a cylindrical part and a conical top positioned on the cylindrical part, and the sampling bottom tank is of a spherical structure.
Furthermore, the sampling bottom tank is connected with the sampling upper tank through threads, so that the sampling bottom tank is convenient to disassemble.
Furthermore, the ash blocking plates in two opposite directions of the sampling tank are arranged in a staggered mode.
The utility model has the advantages that:
the utility model discloses a device utilizes the sampling tank to collect and seal flying dust in to the flue gas, need not shift the sample at the in-process of transportation sample and analysis sample, can avoid the inaccurate problem of measurement that ammonia very easily volatilizees and cause in the sample of collection effectively.
The device of the utility model is provided with a circulating pipeline and a heating device; the heating device can drive out the gas adsorbed on the surface of the fly ash, so that the gas on the surface of the fly ash is volatilized, and the ammonia content on the surface of the fly ash is conveniently analyzed; the circulating pipeline can input gas unabsorbed by the absorption tank into the sampling tank as purge gas so as to further purge the components on the surface of the fly ash and enable the components to be separated from the surface of the fly ash; alternatively, the recycle line can be fed with nitrogen directly to purge the components on the fly ash surface.
The device of the utility model is equipped with the absorption tank to absorb volatile ammonia, then obtain flying dust surface ammonia content through carrying out the analysis to ammonia absorption liquid. In addition, after the gas on the surface of the fly ash is volatilized and absorbed, the ammonia absorption liquid can be introduced into the sampling tank through the inlet pipeline so as to absorb the ammonia gas in the fly ash in the sampling tank, and then the ammonia absorption liquid is analyzed to obtain the ammonia content in the fly ash. By performing differential analysis on the ammonia content on the surface of the fly ash and the ammonia content in the fly ash, the ammonia content in the fly ash can be determined more comprehensively and accurately.
The utility model discloses a ball is collected to the ash sample to the flying dust sample, can avoid the component to run off as far as.
The device of the utility model adopts stainless steel materials, has the advantages of heat resistance, noninterference testing result, cyclic utilization and the like.
Drawings
Fig. 1 is a schematic structural diagram of a sampling tank in an ammonia sampling and analyzing device in fly ash according to the present invention.
Fig. 2 is a schematic structural diagram of an ammonia sampling and analyzing device in fly ash according to the present invention for analyzing the ammonia content on the surface of the fly ash.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
A preferred embodiment of an ammonia sampling and analyzing device for fly ash as shown in fig. 1 and 2; the device comprises a sampling tank 1, wherein the sampling tank comprises an upper sampling tank 101 and a bottom sampling tank 102, the upper sampling tank 11 consists of a cylindrical part and a conical top part positioned on the cylindrical part, and the bottom sampling tank 102 is of a spherical structure; the top of the sampling bottom tank 102 is connected with the bottom of the sampling upper tank 101 through threads, so that the sampling bottom tank is convenient to disassemble. The bottom (sampling bottom tank) of the sampling tank 1 is filled with an ash sample collecting ball 2; the lower part of the sampling tank 1 is connected with an inlet pipeline 3, and the top of the sampling tank 1 is connected with an outlet pipeline 4. A plurality of ash blocking plates 5 which are obliquely arranged downwards are arranged on the inner wall of the sampling tank 1, and the ash blocking plates 5 in two opposite directions of the inner wall of the sampling tank 1 are arranged in a staggered manner in the height direction; a plurality of flow guide holes are uniformly distributed on each ash blocking plate 5. A filter 6 is also arranged in the upper part of the sampling tank 1; in the present embodiment, the filter 6 is a filter net. The inlet pipeline 3 is used for introducing flue gas, purge gas or ammonia absorption liquid, and correspondingly, the outlet pipeline 4 is used for outputting flue gas, volatile gas or ammonia absorption liquid; when the outlet pipeline 4 is used for outputting the volatile gas, the outlet pipeline 4 is connected with an absorption tank 7, and ammonia absorption liquid is arranged in the absorption tank 7; in this example, the ammonia absorbing solution was a 0.1mol/L dilute sulfuric acid solution. The bottom of the sampling tank 1 is provided with a heating device 8 for volatilizing the gas on the surface of the fly ash.
The inlet pipeline 3 and the outlet pipeline 4 are both provided with valves 9 which can control the opening and closing of the pipelines.
Wherein, when the outlet pipeline 4 is used for outputting the volatile gas, the outlet pipeline 4 is connected with the absorption tank 7 through the micro-circulation pump 10 and the volatile gas pipeline 11. Furthermore, when the outlet pipeline 4 is used for outputting the volatile gas, the gas outlet of the absorption tank 7 is connected with the inlet pipeline 3 through the circulating pipeline 12, so that the non-absorbed volatile gas enters the sampling tank 1 as purge gas to circulate.
When the device works, firstly, the outlet pipeline is not connected with a volatile gas pipeline, a micro-circulating pump and an absorption tank, and the inlet pipeline is not connected with a circulating pipeline; opening valves 9 on the outlet pipeline 4 and the inlet pipeline 3, introducing the flue gas into the sampling tank 1, and intercepting fly ash in the flue gas under the action of an ash blocking plate 5 in the process of upward flow of the flue gas; when the flue gas passes through the filter 6, the filter 6 further filters the flue gas to intercept fly ash in the flue gas; the trapped fly ash falls into an ash sample collection ball 2 at the bottom of the sampling tank 1. After the ash sample is collected for a certain time, the valves 9 on the inlet pipeline 3 and the outlet pipeline 4 are closed, and the sampling tank 1 can be transported and stored.
When ammonia content analysis is carried out, the outlet pipeline 4 is connected with the volatile gas pipeline 11, the micro-circulation pump 10 and the absorption tank 1, the inlet pipeline 3 is connected with the circulation pipeline 12, and the circulation pipeline 12 is connected with the gas outlet of the absorption tank 7. The bottom of the sampling tank 1 is provided with a heating device 8; opening valves 9 on the outlet pipeline 4 and the inlet pipeline 3, starting a heating device 8, volatilizing gas on the surface of the fly ash collected in the sampling tank 1 under the heating action, and entering ammonia absorption liquid in an absorption tank 7 through a micro-circulation pump 10; the gas which is not absorbed by the ammonia absorption liquid enters the sampling tank 1 through the circulating pipeline 12, and can be used as sweeping gas to sweep the surface of the fly ash while realizing circulation, so that the gas on the surface of the fly ash is more convenient to volatilize. In addition, the circulation pipeline 12 can also directly input nitrogen to supplement air and purge the surface of the fly ash. After heating and purging for a period of time, the valve 9 is closed, and the ammonia absorption liquid in the absorption tank 7 is analyzed to determine the ammonia content on the surface of the fly ash.
Removing the volatile gas pipeline 11, the micro-circulating pump 10, the absorption tank 7, the circulating pipeline 12 and the heating device 8, opening a valve on the inlet pipeline 3, closing a valve on the outlet pipeline 4, and introducing ammonia absorption liquid into the sampling tank 1 through the inlet pipeline 3; the sampling tank 1 is vibrated to ensure that the ammonia absorption liquid is fully contacted with the fly ash; after dissolving for a period of time, the sampling tank 1 can be turned over, and ammonia absorption liquid is collected; the flow guide holes on the ash blocking plate 5 can facilitate the ammonia absorption liquid to flow down. And extracting the ammonia absorption liquid by a filtering and separating mode, enabling the ammonia absorption liquid to flow out from an outlet pipeline, and analyzing the ammonia absorption liquid to obtain the ammonia content in the fly ash.
After the ammonia content analysis is finished, the sampling bottom tank 102 of the sampling tank 1 can be detached, and the interior of the sampling tank is cleaned and dried, so that the sampling tank can be put into use next time.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.
Claims (8)
1. An ammonia sampling and analyzing device in fly ash, which is characterized in that: the sampling device comprises a sampling tank, wherein a dust sample collecting ball is filled at the bottom of the sampling tank, the lower part of the sampling tank is connected with an inlet pipeline, the top of the sampling tank is connected with an outlet pipeline, a plurality of dust blocking plates which are arranged in a downward inclining manner are arranged in the sampling tank, and a filter is also arranged in the upper part of the sampling tank; the inlet pipeline is used for introducing flue gas, scavenging gas or ammonia absorption liquid, and correspondingly, the outlet pipeline is used for outputting the flue gas, volatile gas or ammonia absorption liquid; when the outlet pipeline is used for outputting the volatile gas, the outlet pipeline is connected with an absorption tank, and ammonia absorption liquid is arranged in the absorption tank; the bottom of the sampling tank is provided with a heating device which volatilizes the gas on the surface of the fly ash.
2. An ammonia sampling and analyzing device in fly ash according to claim 1, characterized in that: and valves are arranged on the inlet pipeline and the outlet pipeline.
3. An ammonia sampling and analyzing device in fly ash according to claim 1, characterized in that: when the outlet pipeline is used for outputting the volatile gas, the outlet pipeline is connected with the absorption tank through the micro-circulation pump.
4. An ammonia sampling and analyzing device in fly ash according to claim 3, characterized in that: when the outlet pipeline is used for outputting the volatile gas, the gas outlet of the absorption tank is connected with the inlet pipeline through the circulating pipeline, so that the non-absorbed volatile gas enters the sampling tank as purge gas to circulate.
5. An ammonia sampling and analyzing device in fly ash according to claim 1, characterized in that: and the ash blocking plate is provided with a flow guide hole.
6. An ammonia sampling and analyzing device in fly ash according to claim 1, characterized in that: the sampling tank comprises a sampling upper tank and a sampling bottom tank, the sampling upper tank is composed of a cylindrical part and a conical top positioned on the cylindrical part, and the sampling bottom tank is of a spherical structure.
7. An ammonia sampling and analyzing device in fly ash according to claim 6, wherein: the sampling bottom tank is connected with the sampling upper tank through threads.
8. An ammonia sampling and analyzing device in fly ash according to claim 1, characterized in that: the two dust blocking plates in the opposite directions of the sampling tank are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221870783.5U CN218003025U (en) | 2022-07-11 | 2022-07-11 | Flying ash ammonia sampling and analyzing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221870783.5U CN218003025U (en) | 2022-07-11 | 2022-07-11 | Flying ash ammonia sampling and analyzing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218003025U true CN218003025U (en) | 2022-12-09 |
Family
ID=84315796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221870783.5U Active CN218003025U (en) | 2022-07-11 | 2022-07-11 | Flying ash ammonia sampling and analyzing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218003025U (en) |
-
2022
- 2022-07-11 CN CN202221870783.5U patent/CN218003025U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2022117928A (en) | Intelligent collection and analysis device for integrated collection and analysis of underground water eluent | |
| US7730796B2 (en) | Method for sampling flue gas for analysis containing gas component having high susceptibility to adsorption | |
| CN201402266Y (en) | Novel full-automatic infrared oil content analyzer | |
| CN103293326B (en) | Mercury-containing fumes emission continuous monitoring system and monitoring method thereof | |
| CN203275420U (en) | On-line pretreatment device for detection of VOCs (volatile organic comopunds) in water | |
| CN105588777A (en) | Device and method for simultaneously testing PM2.5 and coagulated particulate matters discharged by fixing source | |
| US7662217B2 (en) | Soil separator and sampler and method of sampling | |
| CN205280707U (en) | VOCs tail gas witnessed inspections evaluation device is discharged in industry | |
| CN201444157U (en) | Full-automatic infrared oil tester | |
| CN104122403A (en) | Online pretreatment device for detecting VOCs (volatile organic compounds) in water | |
| CN103760004B (en) | Solvent desorption device and method | |
| CN218003025U (en) | Flying ash ammonia sampling and analyzing device | |
| CN206464306U (en) | A kind of sample introduction needle washer | |
| CN105181922A (en) | Device for measuring animal and plant oil | |
| CN201399261Y (en) | Full-automatic extraction apparatus | |
| CN205103070U (en) | Water -soluble attitude heavy metal sampling collection device in atmospheric particulates | |
| CN109870326A (en) | Based on field sampling portable suspension particle sampling device and its method of sampling on plateau | |
| CN208883950U (en) | A kind of dump leaching-adsorbent equipment of use for laboratory multi-parameter monitoring | |
| CN206248653U (en) | A kind of sewage automatic checkout system | |
| CN207703529U (en) | Based on field sampling portable suspension particle sampling device on plateau | |
| CN111693652B (en) | Analysis method and treatment system for chlorine-containing waste gas generated by high-temperature water quenching of chlorination slag | |
| CN206161642U (en) | Extraction and desorption device | |
| CN211978494U (en) | Blowing and trapping device | |
| CN203745274U (en) | Solvent desorption device | |
| CN203350090U (en) | Straight cylinder type bubble absorption tube provided with nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |