CN202785699U - Device for preparing desulfurization gypsum by simulating flue gas desulfurization process - Google Patents
Device for preparing desulfurization gypsum by simulating flue gas desulfurization process Download PDFInfo
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- CN202785699U CN202785699U CN 201220236213 CN201220236213U CN202785699U CN 202785699 U CN202785699 U CN 202785699U CN 201220236213 CN201220236213 CN 201220236213 CN 201220236213 U CN201220236213 U CN 201220236213U CN 202785699 U CN202785699 U CN 202785699U
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Abstract
The utility model discloses a device for preparing desulfurization gypsum by simulating a flue gas desulfurization process. The device comprises a rack; a stirrer and a sealed reactor are arranged on the rack; stirring blades of the stirrer are placed into the reactor; a heating system is arranged on the inner side or the outer side of the reactor; the reactor is respectively connected with a sulfur dioxide tank and an oxygen tank through two intake pipelines; and the reactor is connected with a tail gas absorbing system through a tail gas absorbing pipeline. The device is used for preparing the flue gas desulfurization gypsum by simulating the wet process of flue gas desulfurization under laboratory conditions.
Description
Technical field
The utility model relates to a kind of device for preparing desulfurated plaster, is specifically related to prepare at laboratory condition Imitating heat-engine plant wet flue gas desulfurization course a device of wet process of FGD gypsum.
Background technology
The wet process of FGD gypsum is the by product of heat-engine plant wet flue gas desulfurization.In recent years, along with the practice and extension of China's Wet Flue Gas Desulfurization Technology, the quantity discharged of desulfurized gesso of flue gas grows with each passing day, and it has become the large industrial solid castoff that China demands recycling urgently at present.Right because the distinctive preparation technology of desulfurized gesso of flue gas, the aspects such as composition structure of itself are different from the plaster of paris, so there are problems in it aspect recycling, present its recycling amount less than 10% still, the processing that still goes out of use of a large amount of desulfurized gesso of flue gas.For this reason, want to solve the recycling problem of desulfurized gesso of flue gas, must fundamentally study targetedly desulfurated plaster, this wherein just relates to the problem that how prepares desulfurized gesso of flue gas at the laboratory condition Imitating.
Prepare at present the method for desulfurized gesso of flue gas both at home and abroad with regard to the laboratory condition Imitating, be mainly solution synthetic method, namely in the aqueous solution, prepared in containing the aqueous solution of a certain amount of impurity by the chemical reagent that contains calcium ion and sulfate ion.Method the most commonly used is to prepare desulfurated plaster by calcium chloride and two kinds of chemically pure reagents of sodium sulfate; Also there are a small amount of employing calcium hydroxide and sulfuric acid reaction to prepare the method for gypsum.These methods prepare synthetic sweetening gypsum Main Problems: study not pointedly, have very large difference with the gas-liquid formation condition of desulfurized gesso of flue gas reality, fail the process of real-playback desulfurized gesso of flue gas crystal structure.So the gypsum that synthesizes can not represent the own characteristics of desulfurized gesso of flue gas, the result of study deviation is larger.
For this reason, comprehensive above-mentioned two aspects, with regard to each institute, desulfurated plaster production of articles factory, be necessary one of construction under laboratory condition, small scale, simple in structure, easy handling, the simulation of desulfurization flue gas process that running cost is lower prepare the device of desulfurated plaster.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of laboratory condition Imitating based Wet Process Flue Gas to prepare the device of desulfurized gesso of flue gas.
For achieving the above object, the utility model adopts following technical scheme: a kind of simulation of desulfurization flue gas process prepares the device of desulfurated plaster, comprise frame, frame is provided with agitator, airtight reactor, the agitating vane of agitator is positioned at reactor, reactor inboard or the outside are provided with heating system, and reactor connects respectively sulfur dioxide gas tank and oxygen canister by two intake ductings, and reactor connects tail gas absorbing system by the tail gas extraction duct.
Heating system comprises Electrothermal ring and temperature sensor, temperature sensor and Electrothermal ring all be used for the control heating and be connected the Controlling System signal with stirring velocity and be connected, Controlling System also is connected with the agitator motor signal of agitator.
Described reactor comprises that the top mouth arranges the reactor body of sealing cover, and above-mentioned intake ducting and tail gas extraction duct all stretch in the reactor body by sealing cover, and the port of two intake ductings stretches to the bottom of reactor body.
Described heating and stirring velocity Controlling System are the PLC Controlling System, and Electrothermal ring is arranged in the peripheral heat-conducting liquid that arranges of reactor body.
Described tail gas absorbing system is established the sealed can of absorbent solution in being, the front end of tail gas extraction duct is communicated on the sealing cover, and the end of tail gas extraction duct stretches under the liquid level of absorbent solution in the tail gas absorbing system.
On described intake ducting and the tail gas extraction duct by-pass valve control is set all, the place, air outlet of sulfur dioxide gas tank and oxygen canister all arranges partial pressure valve.
Described intake ducting and tail gas extraction duct are pvc pipe, and reactor body and sealing cover thereof and agitator blades are stainless material and make.
Described frame is brandreth, and brandreth is placed on the adjustable shelf.
A kind of simulation of desulfurization flue gas process described in the utility model prepares the device of desulfurated plaster, by reactor being connected sulfur dioxide gas tank and oxygen canister, the great advantage that compared with prior art has and effect are the building-up processes of true reappearance desulfurized gesso of flue gas comparatively, support on the theory and technology can be provided for the properties of further investigation solution desulfurized gesso of flue gas under laboratory condition, promote the recycling of desulfurized gesso of flue gas.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Prepare the device of desulfurated plaster by a kind of simulation of desulfurization flue gas process shown in Figure 1, comprise the frame 3 that is placed on the adjustable shelf 7, frame 3 is brandreth, and adjustable shelf 7 can be adjusted the height between liquid and conductive fluid liquid level in the reactor flexibly.
Frame 3 is provided with agitator 2 and airtight reactor, described reactor comprises that the top mouth arranges the reactor body 5 of sealing cover 4, reactor body 5 and sealing cover 4 are tightly connected by screw, agitator 2 is provided with two agitating vanes, the stir shaft of agitator 2 is in sealing cover 4 downward insertion reaction device bodies 5, make the agitating vane of agitator 2 be positioned at reactor, the drive-motor of agitator 2 partly is positioned on the frame 3 of sealing cover 4 tops.
The reactor outside is provided with heating system 6, heating system 6 comprises Electrothermal ring and temperature sensor 14, Electrothermal ring comprise around the stainless steel liner plate of reactor body 5 peripheries and liner plate outer ring around nichrome wire, and Electrothermal ring is arranged in the conductive fluid 15 of reactor body 5 peripheries, conductive fluid 15 can be water, it also can be the heat conduction wet goods of non-volatility, Electrothermal ring comes reactor heating body 5 by heating conductive fluid 15, like this reactor is played slow heat effect, overheated to prevent reactor body 5.(Electrothermal ring and conductive fluid 15 are prior art, Gu be not described in detail.) reactor connects respectively sulfur dioxide gas tank 8 and oxygen canister 9 by two intake ductings 13, reactor connects tail gas absorbing system 10 by tail gas extraction duct 15, tail gas absorbing system 10 is established the sealed can of absorbent solution in being, absorbent solution can be sodium hydroxide lye etc.Above-mentioned two intake ductings 13 all stretch in the reactor body 5 by sealing cover 4, and the port of two intake ductings 13 stretches to the bottom of reactor body 5, the front end of tail gas extraction duct 15 is communicated on the sealing cover 4, the end of tail gas extraction duct 15 stretches under the liquid level of tail gas absorbing system 10 interior absorbent solutions, on described two intake ductings 13 and the tail gas extraction duct 15 by-pass valve control 12 is set all, place, the air outlet of sulfur dioxide gas tank 8 and oxygen canister 9 all arranges partial pressure valve 11, and namely two intake ductings 13 respectively are connected with oxygen canister by a partial pressure valve 11 and sulfur dioxide gas tank 8 and are connected.
The device that a kind of simulation of desulfurization flue gas process described in the utility model prepares desulfurated plaster also comprises the Controlling System 1 for control heating and stirring velocity, described Controlling System 1 is the PLC Controlling System, Controlling System 1 is positioned on the frame 3 of top of agitator 2, described temperature sensor 14 all is connected with Controlling System 1 signal with nichrome wire, and Controlling System 1 also is connected with the agitator motor signal of agitator 2.
Described two intake ductings 13 and tail gas extraction duct 15 are the PVC flexible pipe, and reactor body 5 and sealing cover 4 thereof and agitator 2 blades are stainless material and make.
Described reactor body 5 is cylindric, capacity is 6L, and temperature sensor 14 is the temperature of monitoring reaction device constantly, Controlling System 1 control electrothermal wire power's disconnection be connected with connection heating system 6 is kept in the scope that reactor body 5 is in 50 ± 1 ℃ of temperature, simultaneously.Sulfur dioxide gas tank 8 in-built sulfur dioxide gas, oxygen canister 9 in-built oxygen, keep the intake ducting 13 of transmission sulfurous gas and oxygen to be passed into subsurface 8 ± 1cm place in the reactor body 5 in the process of the test, keep room temperature in the process of the test in 20 ± 2 ℃ scope.
Certainly, the utility model is not limited to above-mentioned form, when heating system 6 is positioned at reactor body 5 heating, should arrange every liquid layer between the reaction soln in nichrome wire and the reactor, corrodes in order to avoid nichrome wire is subject to reaction soln.
Below by as an example of synthetic a kind of desulfurated plaster example the utility model being further described.
The proportionlity of pressing calcium ion and sulfate ion key in the desulfurated plaster at first drops into a certain amount of aqua calcis in reactor body 5, open heating system 6, keeps the temperature of this solution to reach 50 ℃.Afterwards, pass into respectively sulfur dioxide gas and oxygen gas according to the certain flow ratio, open simultaneously the by-pass valve control 12 of two intake ductings 13 and tail gas extraction duct 15, turn on agitator 2 keeps this state 3h.Afterwards, close the by-pass valve control 12 of intake ducting 13 and tail gas extraction duct 15, close agitator 2 switches.Keep heating system 672h.Can prepare the synthetic sweetening gypsum.
Above-mentionedly relate to the device that a kind of laboratory condition Imitating flue gas desulfurization course prepares desulfurated plaster and carried out special description disclosed with reference to embodiment.But in the situation that does not depart from scope and spirit of the present utility model, can carry out to it all apparent modification of form and details.Therefore, embodiment described above is illustrative and not restrictive, is not breaking away from the design situation of the present utility model, and all variations and modification all should belong to protection domain of the present utility model.
Claims (8)
1. a simulation of desulfurization flue gas process prepares the device of desulfurated plaster, it is characterized in that: comprise frame, frame is provided with agitator, airtight reactor, the agitating vane of agitator is positioned at reactor, reactor inboard or the outside are provided with heating system, reactor connects respectively sulfur dioxide gas tank and oxygen canister by two intake ductings, and reactor connects tail gas absorbing system by the tail gas extraction duct.
2. a kind of simulation of desulfurization flue gas process as claimed in claim 1 prepares the device of desulfurated plaster, it is characterized in that: heating system comprises Electrothermal ring and temperature sensor, temperature sensor and Electrothermal ring all be used for the control heating and be connected the Controlling System signal with stirring velocity and be connected, Controlling System also is connected with the agitator motor signal of agitator.
3. a kind of simulation of desulfurization flue gas process as claimed in claim 2 prepares the device of desulfurated plaster, it is characterized in that: described reactor comprises that the top mouth arranges the reactor body of sealing cover, above-mentioned intake ducting and tail gas extraction duct all stretch in the reactor body by sealing cover, and the port of two intake ductings stretches to the bottom of reactor body.
4. a kind of simulation of desulfurization flue gas process as claimed in claim 3 prepares the device of desulfurated plaster, it is characterized in that: described heating and stirring velocity Controlling System are the PLC Controlling System, and Electrothermal ring is arranged in the peripheral heat-conducting liquid that arranges of reactor body.
5. a kind of simulation of desulfurization flue gas process as claimed in claim 4 prepares the device of desulfurated plaster, it is characterized in that: described tail gas absorbing system is established the sealed can of absorbent solution in being, the front end of tail gas extraction duct is communicated on the sealing cover, and the end of tail gas extraction duct stretches under the liquid level of absorbent solution in the tail gas absorbing system.
6. a kind of simulation of desulfurization flue gas process as claimed in claim 5 prepares the device of desulfurated plaster, it is characterized in that: on described intake ducting and the tail gas extraction duct by-pass valve control is set all, the place, air outlet of sulfur dioxide gas tank and oxygen canister all arranges partial pressure valve.
7. a kind of simulation of desulfurization flue gas process as claimed in claim 6 prepares the device of desulfurated plaster, it is characterized in that: described intake ducting and tail gas extraction duct are pvc pipe, and reactor body and sealing cover thereof and agitator blades are stainless material and make.
8. a kind of simulation of desulfurization flue gas process as claimed in claim 7 prepares the device of desulfurated plaster, and it is characterized in that: described frame is brandreth, and brandreth is placed on the adjustable shelf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236213 CN202785699U (en) | 2012-05-24 | 2012-05-24 | Device for preparing desulfurization gypsum by simulating flue gas desulfurization process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220236213 CN202785699U (en) | 2012-05-24 | 2012-05-24 | Device for preparing desulfurization gypsum by simulating flue gas desulfurization process |
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| CN202785699U true CN202785699U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220236213 Expired - Fee Related CN202785699U (en) | 2012-05-24 | 2012-05-24 | Device for preparing desulfurization gypsum by simulating flue gas desulfurization process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964483A (en) * | 2014-04-25 | 2014-08-06 | 武汉大学 | Method for preparing high-strength gypsum by adopting atmospheric pressure solution method |
-
2012
- 2012-05-24 CN CN 201220236213 patent/CN202785699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964483A (en) * | 2014-04-25 | 2014-08-06 | 武汉大学 | Method for preparing high-strength gypsum by adopting atmospheric pressure solution method |
| CN103964483B (en) * | 2014-04-25 | 2016-03-02 | 武汉大学 | A kind of normal pressure solution method prepares the method for high strength gypsum |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210524 |
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| CF01 | Termination of patent right due to non-payment of annual fee |