CN210572159U - Evaluation system for reaction efficiency of dry-process reactant - Google Patents
Evaluation system for reaction efficiency of dry-process reactant Download PDFInfo
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- CN210572159U CN210572159U CN201921309137.XU CN201921309137U CN210572159U CN 210572159 U CN210572159 U CN 210572159U CN 201921309137 U CN201921309137 U CN 201921309137U CN 210572159 U CN210572159 U CN 210572159U
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- moving bed
- desulfurizer
- inlet
- reaction efficiency
- reactant
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- 239000000376 reactant Substances 0.000 title claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 27
- 238000011156 evaluation Methods 0.000 title claims abstract description 17
- 238000001035 drying Methods 0.000 title claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 230000003009 desulfurizing effect Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000013500 data storage Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 21
- 239000003546 flue gas Substances 0.000 description 21
- 238000006477 desulfuration reaction Methods 0.000 description 9
- 230000023556 desulfurization Effects 0.000 description 9
- 239000011575 calcium Substances 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003541 multi-stage reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of reactant reaction efficiency evaluation, in particular to an evaluation system for dry process reactant reaction efficiency, which comprises an inlet electric valve, a desulfurizer moving bed, a fan and a chimney, wherein an inlet on-line monitoring system is arranged at the inlet of a moving bed reactor of the desulfurizer moving bed, and a flue heater and a spray humidifier are arranged between the inlet electric valve and the inlet on-line monitoring system; an outlet pressure and flow monitoring instrument is arranged between the outlet of the moving bed reactor of the desulfurizer moving bed and the fan, and an outlet online monitoring system is arranged on the chimney; the upper side of the desulfurizer moving bed is provided with a feeding component for filling a reactant. The evaluation system for the reaction efficiency of the dry-method reactant analyzes the reaction efficiency of the reactant by opening the inlet online monitoring system, the outlet pressure and flow monitoring meter and the outlet online monitoring system and automatically storing monitoring parameters into the data storage system, and has reliable results and simple and convenient process.
Description
Technical Field
The utility model relates to a reactant reaction efficiency appraises technical field, specifically is an evaluation system for dry process reactant reaction efficiency.
Background
The flue gas purification reactant mainly comprises a desulfurization reactant, a denitration reactant and the like, wherein the calcium-based desulfurizer in the desulfurizer is widely adopted due to low price and wide source, and the calcium-based desulfurizer is commonly used as the flue gas desulfurizer and comprises lime, slaked lime, carbide slag, limestone, dolomite and the like. The activity of the calcium-based desulfurizer is mainly determined by the particle size, the specific surface area, the size distribution of gaps, the size of sulfur capacity, the utilization rate of effective calcium, the diffusion rate of reactants through a sulfide product layer and the like of the calcium-based desulfurizer.
In industrial application, the difference of the desulfurization efficiency of different calcium-based desulfurizing agents is large. The reaction activity of the desulfurizer is a main factor influencing the flue gas desulfurization effect, and the higher the reaction activity of the desulfurizer is, the higher the desulfurization efficiency and the desulfurization utilization rate are, so that the desulfurization cost is lower. The fly ash can also be used for synthesizing a desulfurizer for flue gas purification. The fly ash lignite contains more alkaline substances, is an excellent low-concentration flue gas desulfurization adsorbent and can adsorb atmospheric particulates. Studies have shown that Ca (OH) is utilized2The surface area of the cheap adsorbent prepared from the modified fly ash is increased, and SO can be effectively adsorbed2. The fly ash is used for synthesizing zeolite, the adsorption capacity of the synthetic material depends on the type and crystallinity of the fly ash zeolite, and in addition, the dry adsorption material is also favorable for removing SO2. The denitration reactant is mainly characterized in that a catalytic reaction active component is added into a fixed reactant to improve the catalytic purification efficiency of NOx, and a calcium-based active component in the reactant is utilized to carry out absorption reaction.
The reaction efficiency of dry process reactant is especially important to the flue gas treatment, for the convenience of the reaction efficiency of comparing different reactants, the utility model provides an evaluation system for dry process reactant reaction efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an evaluation system for dry process reactant reaction efficiency to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
an evaluation system for reaction efficiency of a dry-method reactant comprises an inlet electric valve, a desulfurizer moving bed, a fan and a chimney, wherein an inlet online monitoring system is arranged at an inlet of the desulfurizer moving bed reactor, and a flue heater and a spray humidifier are arranged between the inlet electric valve and the inlet online monitoring system; the temperature and humidity of the inlet flue gas can be adjusted through the flue heater and the spray humidifier, so that the temperature and the humidity of the flue gas meet the air inlet requirement;
an outlet pressure and flow monitoring instrument is arranged between the outlet of the moving bed reactor of the desulfurizer moving bed and the fan, and an outlet online monitoring system is arranged on the chimney;
and a feeding assembly for filling a reactant is arranged on the upper side of the desulfurizer moving bed.
As a further aspect of the present invention: the feeding assembly comprises a feeder and a storage bin;
the bottom of the storage bin is provided with a gate valve and a first discharge valve; and (3) blanking a material bin by utilizing a gate valve and a first discharge valve, and filling the reactant into the desulfurizer moving bed through a feeder.
As a further aspect of the present invention: a moving bed desulfurizer bed layer is arranged on the desulfurizer moving bed, and a charging opening and a second discharge valve are respectively arranged at the top and the bottom of the moving bed desulfurizer bed layer;
a moving bed grating plate is arranged on the outer side of the moving bed desulfurizer bed layer; through opening the gate valve and the first discharge valve of storage silo, can fill the reactor into the removal bed desulfurizer bed from the feed inlet through the charging means, the unloading speed of desulfurizer removal bed is controlled through the second discharge valve of bottom.
As a further aspect of the present invention: and a moving bed reactor support is arranged at the bottom of the desulfurizer moving bed and is used for supporting the desulfurizer moving bed.
As a further aspect of the present invention: and a manhole is arranged on the desulfurizer moving bed.
Compared with the prior art, the utility model discloses the beneficial effect of embodiment is:
the evaluation system for the reaction efficiency of the dry-method reactant fills the reactant into a moving bed desulfurizer bed layer from a feed inlet through a feeder by opening a gate valve and a first discharge valve of a storage bin; then, an inlet electric valve is opened, a fan is started, after the system is stabilized, an inlet on-line monitoring system, an outlet pressure and flow monitoring meter and an outlet on-line monitoring system are opened, the fan, the inlet electric valve, a flue heater and a spray humidifier are adjusted, the temperature, the humidity and the flue gas flow rate of parameters of the flue gas monitoring system are adjusted to set values for monitoring, the monitored parameters are automatically stored in a data storage system, the reaction efficiency of the reactants is analyzed, the result is reliable, and the process is simple and convenient.
Drawings
In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic diagram of the evaluation system for reaction efficiency of dry reactants.
FIG. 2 is a schematic view of the moving bed of desulfurizing agent in the system for evaluating the reaction efficiency of dry-process reactants.
In the figure: 1-inlet electric valve, 2-flue heater, 3-spray humidifier, 4-inlet on-line monitoring system, 5-desulfurizer moving bed, 6-outlet pressure and flow monitoring instrument, 7-blower, 8-chimney, 9-outlet on-line monitoring system, 10-feeder, 11-storage bin, 12-gate valve, 13-first discharge valve, 14-moving bed reactor inlet, 15-feed inlet, 16-moving bed reactor outlet, 17-moving bed grid plate, 18-moving bed desulfurizer bed layer, 19-manhole, 20-second discharge valve and 21-moving bed reactor support.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, in an embodiment of the present invention, an evaluation system for reaction efficiency of a dry process reactant includes an inlet electric valve 1, a desulfurizer moving bed 5, a fan 7, and a chimney 8, wherein an inlet online monitoring system 4 is disposed at an inlet 14 of the desulfurizer moving bed 5, and a flue heater 2 and a spray humidifier 3 are disposed between the inlet electric valve 1 and the inlet online monitoring system 4; the temperature and humidity of the inlet flue gas can be adjusted through the flue heater 2 and the spray humidifier 3, so that the temperature and the humidity of the flue gas meet the air inlet requirement;
an outlet pressure and flow monitoring instrument 6 is arranged between an outlet 16 of the moving bed reactor of the desulfurizer moving bed 5 and the fan 7, and an outlet online monitoring system 9 is arranged on the chimney 8;
and a feeding assembly for filling a reactant is arranged on the upper side of the desulfurizer moving bed 5.
Specifically, the charging assembly comprises a charger 10 and a storage bin 11;
the bottom of the storage bin 11 is provided with a gate valve 12 and a first discharge valve 13; the gate valve 12 and the first discharge valve 13 are used for blanking a bin, and the reactor is filled into the desulfurizer moving bed 5 through the feeder 10.
Further, a moving bed desulfurizer bed layer 18 is arranged on the desulfurizer moving bed 5, and a charging opening 15 and a second discharge valve 20 are respectively arranged at the top and the bottom of the moving bed desulfurizer bed layer 18;
a moving bed grating plate 17 is arranged on the outer side of the moving bed desulfurizer bed layer 18; by opening the gate valve 12 and the first discharge valve 13 of the storage bin 11, the reactor 10 can be filled into the moving bed desulfurizer bed layer 18 from the feed port 15, and the discharge speed of the desulfurizer moving bed 5 is controlled by the second discharge valve 20 at the bottom.
Further, a moving bed reactor support 21 is installed at the bottom of the desulfurizer moving bed 5, and is used for supporting the desulfurizer moving bed 5.
Furthermore, in order to conveniently overhaul the desulfurizer moving bed 5, a manhole 19 is arranged on the desulfurizer moving bed 5.
The operation mode of the evaluation system for the reaction efficiency of the dry-method reactant is as follows: firstly, opening a gate valve 12 and a first discharge valve 13 of a storage bin 11, and filling a reactant into a moving bed desulfurizer bed layer 18 from a feed inlet 15 through a feeder 10; then, the inlet electric valve 1 is opened, the fan 7 is started, after the system is stabilized, the inlet online monitoring system 4, the outlet pressure and flow monitoring instrument 6 and the outlet online monitoring system 9 are opened, the fan 7, the inlet electric valve 1, the flue heater 2 and the spray humidifier 3 are adjusted, the temperature, the humidity and the flue gas flow rate of the flue gas monitoring system parameters are adjusted to set values for monitoring, and the monitored parameters are automatically stored in the data storage system.
The single moving bed structure can be divided into a one-stage, a two-stage and a multi-stage structure, and is mainly used for ensuring the space velocity and the residence time of the flue gas reactant to be in a practical range. The space velocity range of the adopted reactant is 300-1400h-1The total residence time in the reactant bed is not less than 2 s. The filling thickness of the reactant bed layer is 300-1200 mm, and the flow speed range is 0.2-1.4 m/s. The desulfurization efficiency of the desulfurization reactant is 90-99%, and the denitration efficiency of the denitration reactant is 20-80%. The system can also be used for other reactants such as an adsorbent, a neutralizer and the like, and the filling of similar reactants is within the protection range of the utility model. The reactant filling moving bed fills the strip-shaped, column-shaped or particle-shaped reactants into the moving bed layer through an automatic charging system. The blanking speed is controlled by controlling a discharge valve. The flue gas channel contacts with the reactant in the counter-current or cross-current direction, and after multi-stage reaction, the exhaust is carried out through the exhaust channel. The reaction temperature range of the moving bed of the reactant is 60-450 ℃, and the flue gas humidity can be adjusted. The quantity of the discharge hoppers arranged on the moving bed reactor is 2.
The evaluation method comprises the following steps: the method comprises the steps of adjusting a fan 7, an inlet electric valve 1, a flue heater 2 and a spraying humidifier 3 by controlling the blanking speed of a reactant, adjusting the temperature, the humidity and the flue gas flow rate of flue gas to set values, determining a monitoring system to monitor flue gas parameters after the system is stable, and recording monitoring data. The removal efficiency of the reactant equipment refers to the ratio of the emission concentration of gaseous pollutants treated by the control equipment to the concentration of pollutants before treatment, and the actual measurement values (namely working conditions, wet basis and actual oxygen) can be converted into concentration values (namely standard, dry basis and 6% oxygen) under the standard state by simultaneously measuring parameters such as the emission concentration and the exhaust volume of pollutants, the humidity of flue gas, the oxygen content, the temperature and the pressure in waste gas before and after treatment. In terms of the concentration of the contaminants to be removed as a percentage of the contaminants prior to treatment, see in particular the following formula:
in the formula: p-efficiency of treatment of the reactant equipment,%;
Cfront side-concentration of contaminants, standard, dry basis, 6% oxygen, mg/Nm, before entering the treatment facility3；
CRear end-concentration of pollutants discharged into the ambient air after final treatment, standard, dry basis, 6% oxygen, mg/m3。
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. An evaluation system for reaction efficiency of dry-process reactants comprises an inlet electric valve (1), a flue heater (2), a spraying humidifier (3), an inlet on-line monitoring system (4), a desulfurizer moving bed (5), an outlet pressure and flow monitoring instrument (6), a fan (7), a chimney (8), an outlet on-line monitoring system (9), a feeder (10), a storage bin (11), a gate valve (12), a first discharge valve (13), a moving bed reactor inlet (14), a feed inlet (15), a moving bed reactor outlet (16), a moving bed grid plate (17), a moving bed desulfurizer bed layer (18), a manhole (19), a second discharge valve (20) and a moving bed reactor support (21), and is characterized in that the inlet on-line monitoring system (4) is arranged at the moving bed reactor inlet (14) of the desulfurizer moving bed (5), a flue heater (2) and a spraying humidifier (3) are arranged between the inlet electric valve (1) and the inlet online monitoring system (4);
an outlet pressure and flow monitoring instrument (6) is arranged between an outlet (16) of the moving bed reactor of the desulfurizer moving bed (5) and the fan (7), and an outlet online monitoring system (9) is arranged on the chimney (8);
and a feeding assembly for filling a reactant is arranged on the upper side of the desulfurizer moving bed (5).
2. The system for evaluation of the reaction efficiency of dry reactants according to claim 1, wherein the charging assembly comprises a charger (10) and a storage bin (11);
the bottom of the storage bin (11) is provided with a gate valve (12) and a first discharge valve (13).
3. The evaluation system for reaction efficiency of dry reactants according to claim 2, wherein the moving bed (5) of desulfurizing agent is provided with a moving bed desulfurizing agent bed layer (18), and the top and the bottom of the moving bed desulfurizing agent bed layer (18) are respectively provided with a charging port (15) and a second discharge valve (20);
and a moving bed grating plate (17) is arranged on the outer side of the moving bed desulfurizer bed layer (18).
4. The system for evaluating the reaction efficiency of dry reactants according to claim 3, wherein the bottom of the moving bed (5) of desulfurizing agent is equipped with a moving bed reactor holder (21).
5. The system for evaluating the reaction efficiency of dry reactants according to any of claims 1 to 4, wherein the moving bed (5) of desulfurizing agent is provided with a manhole (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309137.XU CN210572159U (en) | 2019-08-13 | 2019-08-13 | Evaluation system for reaction efficiency of dry-process reactant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309137.XU CN210572159U (en) | 2019-08-13 | 2019-08-13 | Evaluation system for reaction efficiency of dry-process reactant |
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| Publication Number | Publication Date |
|---|---|
| CN210572159U true CN210572159U (en) | 2020-05-19 |
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| CN201921309137.XU Expired - Fee Related CN210572159U (en) | 2019-08-13 | 2019-08-13 | Evaluation system for reaction efficiency of dry-process reactant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881606A (en) * | 2021-01-16 | 2021-06-01 | 佰利天控制设备(北京)股份有限公司 | Coal gas fine desulfurization reactant detection experimental device |
-
2019
- 2019-08-13 CN CN201921309137.XU patent/CN210572159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881606A (en) * | 2021-01-16 | 2021-06-01 | 佰利天控制设备(北京)股份有限公司 | Coal gas fine desulfurization reactant detection experimental device |
| CN112881606B (en) * | 2021-01-16 | 2023-11-10 | 佰利天控制设备(北京)股份有限公司 | Gas fine desulfurization reactant detection experimental device |
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Granted publication date: 20200519 |