CN104020068A - Device and method for detecting dechlorinating performance of dechlorinating agent - Google Patents
Device and method for detecting dechlorinating performance of dechlorinating agent Download PDFInfo
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- CN104020068A CN104020068A CN201410178193.XA CN201410178193A CN104020068A CN 104020068 A CN104020068 A CN 104020068A CN 201410178193 A CN201410178193 A CN 201410178193A CN 104020068 A CN104020068 A CN 104020068A
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Abstract
The invention relates to a device for detecting dechlorinating performance of a dechlorinating agent. The device comprises a weighing device, a nitrogen tank, a gas storage tank, gas quality-flow controllers, a concentrated hydrochloric acid tank, a reaction tube, a preheating furnace, a temperature measuring device, a dechlorinating agent container, a reaction furnace, a reaction endpoint prompting tank and a tail gas processing tank, wherein the lower parts of the nitrogen tank, the gas storage tank, the concentrated hydrochloric acid tank and the preheating furnace are communicated with one another through pipelines, the preheating furnace and the reaction furnace are communicated with each other through the reaction tube, the temperature measuring device is arranged in the reaction furnace, the dechlorinating agent container is hung in the reaction tube through weighing equipment, the reaction tube is communicated with the reaction endpoint prompting tank through a pipeline, the reaction endpoint prompting tank is communicated with the tail gas processing tank through a pipeline, and the tail gas processing tank is used for exhausting gas to external atmosphere through a pipeline; the gas quality-flow controllers are arranged on the pipelines for communicating the nitrogen tank and the gas storage tank as well as for communicating the concentrated hydrochloric acid tank and the preheating furnace, respectively. The invention further relates to a method for detecting the dechlorinating performance of the dechlorinating agent by virtue of the device. According to the device and the method, the dechlorinating performance of the dechlorinating agent can be estimated, and the basis is provided for the selection of dechlorinating agents.
Description
Technical field
The present invention relates to chemical field, be specifically related to a kind of dechlorinating agent dechlorination pick-up unit.
Background technology
Blast furnace gas dry dusting system is the corrosion phenomenon of HCl gas to gas piping and TRT blade in when application often there will be blast furnace gas.
At present, in prior art, there is multiple dry removal agent to remove the HCl gas in blast furnace gas, attempt fundamentally to solve the corrosion of HCl gas to pipe network in blast furnace gas.
But the application's applicant finds that dechlorination is uneven in the time using difference to remove agent, lacks a kind of device and method that detects dechlorinating agent dechlorination various dechlorinating agents on market are evaluated, bring difficulty therefore to those skilled in the art's selection.
Summary of the invention
In order to solve above technical matters, the invention provides a kind of dechlorinating agent dechlorination pick-up unit and method, can evaluate the dechlorination of dechlorinating agent, for the selection of dechlorinating agent brings foundation.
The present invention is achieved through the following technical solutions:
A kind of dechlorinating agent dechlorination pick-up unit, comprises weighing device, nitrogen pot, gas-holder, gas mass flow controller, concentrated hydrochloric acid tank, reaction tube, preheating furnace, temperature measuring equipment, dechlorinating agent container, reacting furnace, reaction end prompting tank, vent gas treatment tank;
Described nitrogen pot and described gas-holder pass through pipeline communication, described gas-holder and described concentrated hydrochloric acid tank pass through pipeline communication, pipeline communication is passed through in described concentrated hydrochloric acid tank and described preheating furnace bottom, described preheating furnace and described reacting furnace are communicated with by reaction tube, in described reacting furnace, be provided with described temperature measuring equipment, described dechlorinating agent container is placed in described reaction tube by described weighing-appliance, described reaction tube is communicated with described reaction end prompting tank by pipeline, described reaction end prompting tank is communicated with described vent gas treatment tank by pipeline, described vent gas treatment tank by pipeline to outside atmospheric exhaust,
Be communicated with on the pipeline between described nitrogen pot and described gas-holder gas mass flow controller I is set, be communicated with on the pipeline between described concentrated hydrochloric acid tank and described preheating furnace and be provided with gas mass flow controller II.
In technique scheme, also comprise control device, digital temperature sensor;
Described temperature measuring equipment connects digital temperature sensor, and described digital temperature sensor connects described control device, and described control device connects described preheating furnace; Described gas mass flow controller I and II are digital gas mass flow controller, and are connected with described control device; Described weighing device is connected with described control device.
In technique scheme, described dechlorinating agent container is platinum hanging basket, in described platinum hanging basket, has equally distributed hole.
In technique scheme, in described reaction end prompting tank, the alkali lye containing phenolphthalein is housed.
In technique scheme, described control device is computing machine.
In technique scheme, described temperature measuring equipment is thermocouple thermometer.
In technique scheme, described weighing device is electronic crane scale.
In technique scheme, described reaction tube is quartz glass tube, is of a size of
Utilize the above device to detect a method for dechlorinating agent dechlorination, comprise the steps:
Dechlorinating agent is put into the dechlorinating agent container of reacting furnace;
Open gas mass flow controller I, the nitrogen in hydrogen chloride and nitrogen pot in concentrated hydrochloric acid tank mixes in gas-holder, then opens gas mass flow controller II, adjustments of gas mass flow controller I and II regulation and control gas flow;
By preheating furnace, to charge heating, the combination gas of preheating enters reacting furnace insulation and reacts with the dechlorinating agent in described dechlorinating agent container, and after reaction, gas enters reaction end prompting tank;
In the time that the phenolphthalein in reaction end prompting tank is become colorless by redness, stop detecting, calculate the chlorosity amount of dechlorinating agent.
Another kind utilizes the above device to detect the method for dechlorinating agent dechlorination, comprises the steps:
Dechlorinating agent is put into the dechlorinating agent container of reacting furnace;
Opened the variable valve of digital gas mass flow controller by control device, nitrogen in hydrogen chloride and nitrogen pot in concentrated hydrochloric acid tank mixes in gas-holder, feeds back to the signals-modulating mixed gas flow of control device according to digital gas mass flow controller;
By preheating furnace, to charge heating, the combination gas of preheating enters reacting furnace insulation and reacts with the dechlorinating agent in described platinum hanging basket, and after reaction, gas enters reaction end prompting tank;
Described temperature measuring equipment by temperature information by pass to described control device to digital temperature sensor, described in when the Temperature numerical receiving when described control device is greater than control device design temperature numerical value, control device sends signal and reduces preheating furnace heating-up temperature until reach design temperature, when the Temperature numerical receiving when described control device is less than control device design temperature numerical value described in control device send signal and improve preheating furnace heating-up temperature until reach design temperature;
In the time that the phenolphthalein in reaction end prompting tank is become colorless by redness, stop detecting, calculated the chlorosity amount of dechlorinating agent by control device.
Apparatus and method of the present invention can be placed on the dechlorinating agent of variety classes and shape in dechlorinating agent container its dechlorination is detected, preheating furnace and the reacting furnace hot environment in can analog blast furnace coal gas, the weighing device of lifting dechlorinating agent container can detect the weight change of dechlorinating agent, in reaction end prompting tank, the alkali lye containing phenolphthalein is housed, in the time that dechlorination reaction is reached home, dechlorinating agent has lost dechlorination ability, phenolphthalein alkali lye in prompting tank, because sour effect is become colorless by redness, now can stop measuring in time; The data of measuring according to weighing device, can obtain the weight change value of measuring front and back dechlorinating agent, the convenient chlorosity amount of calculating dechlorinating agent, thus judge dechlorinating agent dechlorination.
Brief description of the drawings
The dechlorinating agent dechlorination structure of the detecting device schematic diagram that Fig. 1 provides for the embodiment of the present invention one.
The dechlorinating agent dechlorination structure of the detecting device schematic diagram that Fig. 2 provides for the embodiment of the present invention two.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
Embodiment mono-
Referring to Fig. 1, a kind of dechlorinating agent dechlorination pick-up unit that the embodiment of the present invention one provides, comprises weighing device 2, nitrogen pot 3, gas-holder 4, gas mass flow controller I 5 and II 6, concentrated hydrochloric acid tank 7, reaction tube 11, preheating furnace 12, temperature measuring equipment 8, dechlorinating agent container 9, reacting furnace 10, reaction end prompting tank 13, vent gas treatment tank 14;
Nitrogen pot 3 passes through pipeline communication with gas-holder 4, gas-holder 4 and concentrated hydrochloric acid tank 7 pass through pipeline communication, pipeline communication is passed through in concentrated hydrochloric acid tank 7 and preheating furnace 12 bottoms, the preheating furnace 12 of the present embodiment is resistance-type heating furnace, resistance-type heating furnace and reacting furnace 10 are communicated with by reaction tube 11, and the reaction tube 11 that the present embodiment uses is for being of a size of
quartz glass tube, so both can be observed the reaction in pipe, in uphill process, there is not significantly temperature drop in the afterchlorinate hydrogen combination gas that can ensure to be again heated; In reacting furnace 10, be provided with temperature measuring equipment 8, the temperature measuring equipment 8 of the present embodiment is thermocouple thermometer, dechlorinating agent container 9 is placed in quartz glass tube by weighing-appliance, dechlorinating agent container 9 in the present embodiment is platinum hanging basket, in platinum hanging basket, have equally distributed hole, using the reason of platinum hanging basket is that platinum is not only high temperature resistant but also anticorrosive; Weighing-appliance is electronic crane scale; Quartz glass tube is communicated with by pipeline and reaction end prompting tank 13, in reaction end prompting tank 13, the alkali lye containing phenolphthalein is housed, and reaction end prompting tank 13 is communicated with vent gas treatment tank 14 by pipeline, vent gas treatment tank 14 by pipeline to outside atmospheric exhaust;
Be communicated with on the pipeline between nitrogen pot 3 and gas-holder 4 gas mass flow controller I 5 is set, be communicated with on the pipeline between concentrated hydrochloric acid tank 7 and preheating furnace 12 and be provided with gas mass flow controller II 6.
Embodiment bis-
Referring to Fig. 2, a kind of dechlorinating agent dechlorination pick-up unit that the embodiment of the present invention two provides, comprises control device 1, weighing device 2, nitrogen pot 3, gas-holder 4, gas mass flow controller I 5 and II 6, concentrated hydrochloric acid tank 7, reaction tube 11, preheating furnace 12, temperature measuring equipment 8, dechlorinating agent container 9, reacting furnace 10, reaction end prompting tank 13, vent gas treatment tank 14;
Nitrogen pot 3 passes through pipeline communication with gas-holder 4, gas-holder 4 and concentrated hydrochloric acid tank 7 pass through pipeline communication, pipeline communication is passed through in concentrated hydrochloric acid tank 7 and preheating furnace 12 bottoms, the preheating furnace 12 of the present embodiment is resistance-type heating furnace, resistance-type heating furnace and reacting furnace 10 are communicated with by reaction tube 11, and the reaction tube 11 that the present embodiment uses is for being of a size of
quartz glass tube, so both can be observed the reaction in pipe, in uphill process, there is not significantly temperature drop in the afterchlorinate hydrogen combination gas that can ensure to be again heated; In reacting furnace 10, be provided with temperature measuring equipment 8, the temperature measuring equipment 8 of the present embodiment is digital thermal dipole thermometer, dechlorinating agent container 9 is placed in quartz glass tube by weighing-appliance, dechlorinating agent container 9 in the present embodiment is platinum hanging basket, in platinum hanging basket, have equally distributed hole, using the reason of platinum hanging basket is that platinum is not only high temperature resistant but also anticorrosive; Weighing-appliance is electronic crane scale; Quartz glass tube is communicated with by pipeline and reaction end prompting tank 13, in reaction end prompting tank 13, the alkali lye containing phenolphthalein is housed, and reaction end prompting tank 13 is communicated with vent gas treatment tank 14 by pipeline, vent gas treatment tank 14 by pipeline to outside atmospheric exhaust;
Be communicated with the pipeline between nitrogen pot 3 and gas-holder 4 and be communicated with concentrated hydrochloric acid tank 7 and preheating furnace 12 between pipeline on be provided with gas mass flow controller I 5 and II 6, the gas mass flow controller of the present embodiment is digital gas mass flow controller, can be used for controlling the gas flow that enters preheating furnace 12;
Digital thermal dipole thermometer connects digital temperature sensor, and the A/D converter that digital temperature sensor has by its inside connects control device 1, and the control device 1 of the present embodiment is computing machine, and computing machine connects preheating furnace 12; Digital gas mass flow controller can directly be connected with computing machine, need to join on computers A/D ﹑ D/A converter, A/D conversion is used for receiving flow measurements, and D/A conversion is used for providing 0-5VDC flow setting signal, and this converter can have been bought on Industry Control produce market; " setting " line of digital gas mass flow controller is connect to computing machine D/A output; " flow detection " line is connect to the A/D input end of computing machine, digital gas mass flow controller signal ground is connected with Computer signal line.Digital gas mass flow controller also can be connected with computing machine by Flow Measurement Display Meter, and " peripheral hardware " line of Flow Measurement Display Meter is connect to computing machine D/A output; " flow detection " line is connect to computer A/D input end; The signal ground of display instrument is connected with Computer signal line.Digital gas mass flow controller sends a signal to computing machine and accepts computer regulating; Electronic crane scale is connected with computing machine, joins the A/D change-over panel adapting with it on computing machine, and A/D conversion is used for receiving weight measurement.
Embodiment tri-
A kind of dechlorinating agent dechlorination detection method providing according to the embodiment of the present invention one, comprises the steps:
Dechlorinating agent is put into the dechlorinating agent container 9 of reacting furnace 10, the dechlorinating agent container 9 in the present embodiment is platinum hanging basket, has equally distributed hole in platinum hanging basket, and HCl gas can enter platinum hanging basket by hole and react with dechlorinating agent;
Open gas mass flow controller I 5, the nitrogen in hydrogen chloride and nitrogen pot in concentrated hydrochloric acid tank 7 mixes in gas-holder, then opens gas mass flow controller II 6, and adjustments of gas mass flow controller I 5 and II 6 regulate and control gas flow;
By preheating furnace 12, to charge heating, the combination gas of preheating enters that reacting furnace 10 is incubated and reacts with the dechlorinating agent in described dechlorinating agent container 9; In preheating furnace 12, be provided with temperature measuring equipment 8, the temperature measuring equipment 8 in the present embodiment is digital thermal dipole thermometer, and the temperature information coming according to transmission regulates the temperature of preheating furnace 12.
In the time that the phenolphthalein in reaction end prompting tank 13 is become colorless by redness, stop detecting, calculate the chlorosity amount (chlorosity amount=adsorbent gain in weight/adsorbent original weight × 100%) of dechlorinating agent.
Embodiment tetra-
A kind of dechlorinating agent dechlorination detection method providing according to the invention process two examples, comprises the steps:
Dechlorinating agent is put into the dechlorinating agent container 9 of reacting furnace 10, the dechlorinating agent container 9 in the present embodiment is platinum hanging basket, has equally distributed hole in platinum hanging basket, and HCl gas can enter platinum hanging basket by hole and react with dechlorinating agent;
Provide unblanking gas mass flow controller I 5 by control device 1, in the present embodiment, gas mass flow controller I 5 is that digital gas mass flow controller, control device 1 are computing machine, nitrogen in hydrogen chloride in concentrated hydrochloric acid tank 7 and nitrogen pot 3 can mix in gas-holder 4, open again gas mass flow controller II 6, feed back to according to digital gas mass flow controller the gas flow that the calculated signals machine of control device 1 can regulating and controlling digital formula gas mass flow controller;
By preheating furnace 12, to charge heating, the combination gas of preheating enters that reacting furnace 10 is incubated and reacts with the dechlorinating agent in described dechlorinating agent container 9, in preheating furnace 12, be provided with temperature measuring equipment 8, temperature measuring equipment 8 in the present embodiment is thermopair, thermopair connects digital temperature sensor, the A/D converter that digital temperature sensor has by its inside connects computing machine, temperature information is transferred to computing machine, computing machine connects preheating furnace 12 and regulates the temperature of preheating furnace 12 according to the next temperature information of transmission, when being greater than computer settings Temperature numerical computer-chronograph, the Temperature numerical of computing machine reception sends signal reduction preheating furnace 12 heating-up temperatures until reach design temperature, when being less than computer settings Temperature numerical computer-chronograph, the Temperature numerical of computing machine reception sends signal raising preheating furnace 12 heating-up temperatures until arrive design temperature,
In the time that the phenolphthalein in reaction end prompting tank 13 is become colorless by redness, stop detecting, calculated the chlorosity amount (chlorosity amount=adsorbent gain in weight/adsorbent original weight × 100%) of dechlorinating agent by computing machine.
It should be noted last that, above embodiment is only in order to implementer's case of this material to be described and unrestricted, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. a dechlorinating agent dechlorination pick-up unit, is characterized in that: comprise weighing device (2), nitrogen pot (3), gas-holder (4), gas mass flow controller I (5) and II (6), concentrated hydrochloric acid tank (7), reaction tube (11), preheating furnace (12), temperature measuring equipment (8), dechlorinating agent container (9), reacting furnace (10), reaction end prompting tank (13), vent gas treatment tank (14);
Described nitrogen pot (3) passes through pipeline communication with described gas-holder (4), described gas-holder (4) and described concentrated hydrochloric acid tank (7) pass through pipeline communication, pipeline communication is passed through in described concentrated hydrochloric acid tank (7) and described preheating furnace (12) bottom, described preheating furnace (12) and described reacting furnace (10) are communicated with by reaction tube (11), in described reacting furnace (10), be provided with described temperature measuring equipment (8), described dechlorinating agent container (9) is placed in described reaction tube (11) by described weighing-appliance, described reaction tube (11) is communicated with described reaction end prompting tank (13) by pipeline, described reaction end prompting tank (13) is communicated with described vent gas treatment tank (14) by pipeline, described vent gas treatment tank (14) by pipeline to outside atmospheric exhaust,
Be communicated with on the pipeline between described nitrogen pot (3) and described gas-holder (4) gas mass flow controller I (5) is set, be communicated with on the pipeline between described concentrated hydrochloric acid tank (7) and described preheating furnace (12) and be provided with gas mass flow controller II (6).
2. dechlorinating agent dechlorination pick-up unit as claimed in claim 1, is characterized in that: also comprise control device (1), digital temperature sensor;
Described temperature measuring equipment (8) connects digital temperature sensor, and described digital temperature sensor connects described control device (1), and described control device (1) connects described preheating furnace (12); Described gas mass flow controller I (5) and II (6) are digital gas mass flow controller, and are connected with described control device (1); Described weighing device (2) is connected with described control device (1).
3. dechlorinating agent dechlorination pick-up unit as claimed in claim 1 or 2, is characterized in that: described dechlorinating agent container (9) is platinum hanging basket, in described platinum hanging basket, has equally distributed hole.
4. dechlorinating agent dechlorination pick-up unit as claimed in claim 1 or 2, is characterized in that: in described reaction end prompting tank (13), the alkali lye containing phenolphthalein is housed.
5. dechlorinating agent dechlorination pick-up unit as claimed in claim 2, is characterized in that: described control device (1) is computing machine.
6. dechlorinating agent dechlorination pick-up unit as claimed in claim 1 or 2, is characterized in that: described temperature measuring equipment (8) is thermocouple thermometer.
7. dechlorinating agent dechlorination pick-up unit as claimed in claim 1, is characterized in that: described weighing device (2) is electronic crane scale.
8. dechlorinating agent dechlorination pick-up unit as claimed in claim 1, is characterized in that: described reaction tube (11) is quartz glass tube, is of a size of
9. utilize device described in claim 1 to detect the method for dechlorinating agent dechlorination, it is characterized in that: comprise the steps:
Dechlorinating agent is put into the dechlorinating agent container (9) of reacting furnace (10);
Open gas mass flow controller I (5), nitrogen in hydrogen chloride in concentrated hydrochloric acid tank (7) and nitrogen pot (3) mixes in gas-holder (4), open again gas mass flow controller II (6), adjustments of gas mass flow controller I (5) and II (6) regulation and control gas flow;
By preheating furnace (12) to charge heating, the combination gas of preheating enters reacting furnace (10) insulation and reacts with the dechlorinating agent in described dechlorinating agent container (9), and after reaction, gas enters reaction end prompting tank (13);
In the time that the phenolphthalein in reaction end prompting tank (13) is become colorless by redness, stop detecting, calculate the chlorosity amount of dechlorinating agent.
10. utilize device described in claim 2 to detect the method for dechlorinating agent dechlorination, it is characterized in that: comprise the steps:
Dechlorinating agent is put into the dechlorinating agent container (9) of reacting furnace (10);
Opened the variable valve of digital gas mass flow controller by control device (1), nitrogen in hydrogen chloride in concentrated hydrochloric acid tank (7) and nitrogen pot (3) mixes in gas-holder (4), feeds back to the signals-modulating mixed gas flow of control device (1) according to digital gas mass flow controller;
By preheating furnace (12), to charge heating, the combination gas of preheating enters reacting furnace (10) insulation and reacts with the dechlorinating agent in described platinum hanging basket, and after reaction, gas enters reaction end prompting tank (13);
Described temperature measuring equipment (8) by temperature information by pass to described control device (1) to digital temperature sensor, the Temperature numerical receiving when described control device (1) while being greater than control device (1) design temperature numerical value described in control device (1) send signal and reduce preheating furnace (12) heating-up temperature until reach design temperature, when the Temperature numerical receiving when described control device (1) is less than control device (1) design temperature numerical value described in control device (1) send signal and improve preheating furnace heating-up temperature until arrive design temperature;
In the time that the phenolphthalein in reaction end prompting tank (13) is become colorless by redness, stop detecting, calculated the chlorosity amount of dechlorinating agent by control device (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410178193.XA CN104020068B (en) | 2014-04-29 | 2014-04-29 | A kind of dechlorinating agent dechlorination pick-up unit and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178193.XA CN104020068B (en) | 2014-04-29 | 2014-04-29 | A kind of dechlorinating agent dechlorination pick-up unit and method |
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| CN104020068A true CN104020068A (en) | 2014-09-03 |
| CN104020068B CN104020068B (en) | 2016-04-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127145A (en) * | 1986-11-17 | 1988-05-31 | Mitsubishi Heavy Ind Ltd | Thermogravimetry |
| JP2009250896A (en) * | 2008-04-09 | 2009-10-29 | National Institute Of Advanced Industrial & Technology | Ammonia measuring element, ammonia measuring device, ammonia measuring method, chlorine measuring element, chlorine measuring device and chlorine measuring method |
| CN201495125U (en) * | 2009-07-31 | 2010-06-02 | 深圳市水务(集团)有限公司 | System for performing on-line monitoring on residual chlorine in fluid |
| CN203411438U (en) * | 2013-07-16 | 2014-01-29 | 重庆泰克环保工程设备有限公司 | Hospital sewage treatment system |
-
2014
- 2014-04-29 CN CN201410178193.XA patent/CN104020068B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127145A (en) * | 1986-11-17 | 1988-05-31 | Mitsubishi Heavy Ind Ltd | Thermogravimetry |
| JP2009250896A (en) * | 2008-04-09 | 2009-10-29 | National Institute Of Advanced Industrial & Technology | Ammonia measuring element, ammonia measuring device, ammonia measuring method, chlorine measuring element, chlorine measuring device and chlorine measuring method |
| CN201495125U (en) * | 2009-07-31 | 2010-06-02 | 深圳市水务(集团)有限公司 | System for performing on-line monitoring on residual chlorine in fluid |
| CN203411438U (en) * | 2013-07-16 | 2014-01-29 | 重庆泰克环保工程设备有限公司 | Hospital sewage treatment system |
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| CN104020068B (en) | 2016-04-27 |
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Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |
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