CN206045755U - For the device of flue gas desulfurization - Google Patents
For the device of flue gas desulfurization Download PDFInfo
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- CN206045755U CN206045755U CN201621006561.3U CN201621006561U CN206045755U CN 206045755 U CN206045755 U CN 206045755U CN 201621006561 U CN201621006561 U CN 201621006561U CN 206045755 U CN206045755 U CN 206045755U
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Abstract
This utility model belongs to chemical field, it is related to include for the device of flue gas desulfurization successively, if the desulfurizing tower of heater, gas tank and the desulfurizing agent making apparatus containing blending tank, mounted maintenance equipment, the first baker, Muffle furnace, constant temperature dipping box, separator, the second baker and the cooler being sequentially communicated are mixed.Blending tank is made up of destroyer, first and second blender.Connecting plate is set at destroyer opening, screen cloth is set between opening and connecting plate, is also set charging aperture.First blender opening upwards, radial dimension be more than destroyer, inside set be connected with connecting plate, rotatable horizontal rotating disc, which also sets the first charge door with 20 40 eye mesh screens and communicates discharging opening with the second blender.Second blender sets 20 60 the second charge doors of eye mesh screen of band, the 3rd charge door, gas tank, discharging opening and the first temperature controller.Constant temperature dipping box sets the 4th charge door and the second temperature controller.The desulfuration efficiency of described device is higher, with more economy.
Description
Technical field
This utility model belongs to chemical field, and in particular to a kind of device for flue gas desulfurization.
Background technology
Often contain sulfide in the flue gas that coal combustion or industry manufacture are produced.Sulfide is mainly derived from coal or industry is former
The sulfur material that material contains, sulfur material react in combustion process or industrial manufacturing process, and conversion sulphidisation is discharged.
Sulfide is particularly the catalyst poisoning inactivation that hydrogen sulfide, sulfur dioxide etc. are can frequently result in production workshop section, and Containing Sulfur
The waste gas of thing is directly discharged, and easily pollutes environment, is produced the air problems such as haze, is had a strong impact on the health of the mankind.
Desulfurizing agent is a kind of medicament for removing sulfide in flue gas.Be conducive to industrial life due to reducing sulfide content
Produce and environmental conservation, therefore researcher more concerns for the research and development of desulfurizing agent give.Current desulfurizing agent kind includes
Solid base/liquid base desulfurizing agent, activated carbon desulphurization agent, molecular sieve carried metal desulfurization agent, Fe-series desulfurizing agent, manganese systems desulfurizing agent,
Many composite oxide of metal desulfurizing agents etc..Study through for many years, although desulfurizing agent species is increasingly enriched, and desulfurization performance there has also been
Be greatly improved, but the Sulfur capacity and desulfurization precision of existing desulfurizing agent be still relatively low, it is difficult to meet flue gas desulfurization to efficiency and
The requirement of economy.
Still need at present a kind of economic, efficient device for being used for flue gas desulfurization, it is de- to flue gas to meet industry, civil area
The urgent needss of sulfur.
Utility model content
Inventor of the present utility model is found that a kind of device for flue gas desulfurization, de- using obtained high sulfur capacity, height
The desulfurizing agent of sulfur precision, high transverse rupture strength and bigger serface, carries out desulfurization to flue gas, substantially increases desulfuration efficiency, and
And it is more economical and practical.Also, the desulfuration efficiency that the mixture of nitrogen and desulfurizing agent carries out desulfurization to flue gas at high temperature is higher.
This utility model is related to a kind of device for flue gas desulfurization, including,
Mixed gas tank, desulfurizing tower and desulfurizing agent making apparatus；The mixed gas tank is provided with air intake, inlet and outlet；It is described
The bottom of desulfurizing tower is provided with gas approach, and top is provided with gas outlet, and top is provided with what is be connected with the outlet of mixed gas tank
Desulfurizing agent import, the desulfurizing tower are additionally provided with heater；The desulfurizing agent making apparatus include blending tank, mounted maintenance equipment, first
Baker, Muffle furnace, constant temperature dipping box, separator, the second baker and cooler；The blending tank is by arranging successively from top to bottom
The destroyer of row, the first blender and the second blender composition；
Wherein, Open Side Down for the destroyer, its opening be provided centrally with connecting plate, the connecting plate by connecting rod with
Destroyer wall is connected, and screen cloth (the preferred 50-70 of 50-100 mesh is provided between destroyer edge of opening and connecting plate edge
Mesh, 60-70 mesh, 70-90 mesh, 80-100 mesh or 60-80 mesh)；The disintegrating machine is additionally provided with for adding ferrous sulfate and chlorine
Change the charging aperture (preferred feedstock mouth is arranged on the top of destroyer) of magnesium；Preferably, destroyer edge of opening and connecting plate edge
Between open area be screen covered completely；
The first blender opening upwards, are provided with the horizontal rotating disc that can be rotated relative to the first blender, the water in which
Rotating disc is connected with the first blender by rotating shaft；Radial dimension of the radial dimension of first blender more than destroyer；
Also, horizontal rotating disc is connected with the connecting plate of destroyer, (preferably, rotating speed is destroyer is rotated relative to the first blender
700-1500r/min)；First blender is provided with for adding the first charge door of ferrum oxide and fluorite, the first charging
The screen cloth (preferably 20-30 mesh, 20-25 mesh, 30-40 mesh or 35-40 mesh) of 20-40 mesh is provided with mouthful；First mixing
The bottom of device is provided with the discharging opening being connected with the second internal mixer；
Second blender is provided with for adding the second charge door of polylactic acid, the Acanthopanan trifoliatus (L.) Merr. for adding sodium borate
First temperature controller of material mouth, the gas tank for oxygen-containing gas is filled with into body, discharging opening and temperature-control range 90-120 DEG C, it is described
Screen cloth (preferably 20-40 mesh, 20-30 mesh, 30-50 mesh, 50-60 mesh or the 30-40 of 20-60 mesh are provided with second charge door
Mesh)；
The mounted maintenance equipment is provided with the charging aperture and discharging opening being connected with the discharging opening of the second blender；
First baker is provided with the charging aperture and discharging opening being connected with the discharging opening of mounted maintenance equipment；
The Muffle furnace is provided with the charging aperture and discharging opening being connected with the discharging opening of the first baker；
The constant temperature dipping box be provided be connected with the discharging opening of Muffle furnace charging aperture, for adding liquid polylactic acid
The 4th charge door and discharging opening；The constant temperature dipping box is additionally provided with the second temperature controller of temperature-control range 120-200 DEG C；
The separator is provided with the charging aperture and solid outlet being connected with the discharging opening of constant temperature dipping box；
Second baker is provided with the charging aperture and discharging opening being connected with solid outlet；
The cooler is provided with the charging aperture and outlet being connected with the discharging opening of the second baker；The mixed gas tank
Import is connected with the outlet of cooler.
The screen cloth arranged at destroyer opening and at the first charge door mixes ferrous sulfate, magnesium chloride, ferrum oxide and fluorite
Close more uniform.
Sodium borate contributes to making polylactic acid and the mixture of ferrous sulfate, magnesium chloride, ferrum oxide and fluorite uniformly merge.
The screen cloth that second charge door is arranged makes polylactic acid be more easy to the mixing with ferrous sulfate, magnesium chloride, ferrum oxide and fluorite
Thing fusion is uniform.
The purpose for arranging first and second baker is to reduce water content, and moisture mostlys come from raw material.
In Muffle furnace, in the case where sodium borate is participated in (may be catalytic action), there is chemical change in polylactic acid.
In constant temperature dipping box, polylactic acid is merged with ferrous sulfate, magnesium chloride, ferrum oxide and fluorite particle depth.
In the embodiment of any one of this utility model, the gas flow rate for mixing gas tank air intake is 50-100m/s.Gas is fast
Speed is flowed into, and forms mixture with desulfurizing agent in tank.
In the embodiment of any one of this utility model, mixed gas tank air intake is connected with nitrogen storage tank；Preferably, by mixed gas
The gas that tank air intake is flowed into is nitrogen.
In the embodiment of any one of this utility model, in desulfurizing tower, the mixture containing desulfurizing agent is with flue gas at high temperature
Reverse flow is simultaneously fully contacted, and the gas after desulfurization process is discharged by the gas outlet of top of tower and collected.
In the embodiment of any one of this utility model, the heating-up temperature of the heater of the desulfurizing tower is 100-220 DEG C.
In the embodiment of any one of this utility model, from desulfurizing agent import to tower in be extended have shower nozzle.For inciting somebody to action
Mixed gas tank includes the mixture of desulfurizing agent and sprays in desulfurizing tower.
In the embodiment of any one of this utility model, the first blender and the second blender are connected.
In the embodiment of any one of this utility model, the mounted maintenance equipment is additionally provided with the of 80 DEG C -100 DEG C of temperature-control range
Three temperature controllers.
In the embodiment of any one of this utility model, the Muffle furnace is additionally provided with the of temperature-control range 200-250 DEG C
Four temperature controllers.
In the embodiment of any one of this utility model, the constant temperature dipping box is additionally provided with intervalometer.
In the embodiment of any one of this utility model, first baker is additionally provided with temperature-control range 120-150 DEG C
The 5th temperature controller.
In the embodiment of any one of this utility model, second baker is additionally provided with temperature-control range 120-150 DEG C
The 6th temperature controller.
In the embodiment of any one of this utility model, in the destroyer, crushing cutter is provided with；First blender
With stirring paddle, preferably rustless steel stirring paddle are provided with the second blender.
In the embodiment of any one of this utility model, the separator is centrifugal separator or settlement separate machine.
In the embodiment of any one of this utility model, the connecting plate is cylinder；Preferably, the footpath of the connecting plate
To size be the radial dimension of 1/4-1/2 of the destroyer opening, more preferably 1/3.
In the embodiment of any one of this utility model, the screen cloth at the destroyer opening is annular.
In the embodiment of any one of this utility model, the horizontal rotating disc is coaxially disposed with the first blender.
In the embodiment of any one of this utility model, the disintegrating machine is located fully or partially in the first blender；It is excellent
Selection of land, the bottom of the disintegrating machine are located in the first blender.
In the embodiment of any one of this utility model, the bottom of the connecting plate is connected with the top of horizontal rotating disc.
In the embodiment of any one of this utility model, the radial dimension of the destroyer is the first blender radial dimension
2/3-7/8；Preferably 5/6.
In the embodiment of any one of this utility model, the oxygen-containing gas in gas tank is the mixing of air or nitrogen and oxygen
Gas；Preferably, the pressure control range of gas tank is 1-10MPa.
In the embodiment of any one of this utility model, the discharging opening of first blender, the second charge door, Acanthopanan trifoliatus (L.) Merr.
The discharge outlet of material mouth and the second blender is provided with sealable valve.
In the embodiment of any one of this utility model, the inwall of second blender and constant temperature dipping box is provided with and adds
Hot water radiation wire, preferred resistance wire spiral setting along inwall.
In the embodiment of any one of this utility model, several condensing tubes in the cooler, are arranged with parallel, it is preferably cold
Solidifying pipe is in vertical array arrangement.Preferably, at least communicate between the condensing tube of 1-50% quantity, it is highly preferred that 50% quantity
Communicate between condensing tube.To reduce the even impact to desulfurizing agent performance of inhomogeneous cooling.
The beneficial effect that this utility model is obtained：
1st, this utility model is used for the device of flue gas desulfurization, strong using obtained high sulfur capacity, high desulfurization precision, high transverse rupture
Degree, the desulfurizing agent of bigger serface carry out desulfurization to flue gas, improve the desulfuration efficiency in industrial application, and economy is higher.
2nd, this utility model is used in the device of flue gas desulfurization, and the mixture of nitrogen and desulfurizing agent enters to flue gas at high temperature
The desulfuration efficiency of row desulfurization is higher.
3rd, the screen cloth that the second charge door of this utility model is arranged makes polylactic acid be more easy to and ferrous sulfate, magnesium chloride, ferrum oxide
It is uniform with the mixture fusion of fluorite, make the desulfurization performance of desulfurizing agent prepared by device more stable.
4th, the sodium borate of the 3rd charge door of this utility model addition, it is possible to increase polylactic acid is uniform with other raw material fusions
Property, and sodium borate can make polylactic acid that chemical change occurs in roasting process, improve the de- of desulfurizing agent prepared by device
Sulfur performance.
Description of the drawings
In order that content of the present utility model is more likely to be clearly understood, it is embodied as below according to of the present utility model
Example simultaneously combines accompanying drawing, and this utility model is described in further detail, wherein
Fig. 1 is the structural representation of the device that this utility model is used for flue gas desulfurization.
Wherein：1- blending tanks, 2- destroyers, 3- connecting plates, 4- destroyer screen clothes, 5- destroyer charging apertures, 6- first are mixed
Clutch, 7- horizontal rotating discs, 8- rotating shafts, the first charge doors of 9-, 10- the first blender discharging openings, the second blenders of 11-, 12- second
Charge door, the 3rd charge doors of 13-, 14- gas tanks, the first temperature controllers of 15-, 16- mounted maintenance equipments, the first bakers of 17-, 18- Muffle furnaces,
19- constant temperature dipping box, the 4th charge doors of 20-, the second temperature controllers of 21-, 22- centrifugal separators, the second bakers of 23-, 24- coolings
Device, the 3rd temperature controllers of 25-, the 4th temperature controllers of 26-, 27- intervalometers, the 5th temperature controllers of 28-, the 6th temperature controllers of 29-, 30- mix gas
Tank, 31- air intakes, the mixed gas tank imports of 32-, 33- mix gas tank outlet, 34- nitrogen storage tanks, 35- desulfurizing towers, 36- gas approach,
37- gas outlets, 38- desulfurizing agent imports, 39- heaters.
Specific embodiment
1 this utility model of embodiment is used for the device of flue gas desulfurization
As shown in figure 1, the device for flue gas desulfurization includes：Mixed gas tank 30, desulfurizing tower 35 and desulfurizing agent making apparatus；Institute
State mixed gas tank 30 and be provided with air intake 31, mixed gas tank import 32 and mixed gas tank outlet 33；30 air intake of mixed gas tank, 31 connect setting
There is nitrogen storage tank 34, the nitrogen flow rate of air intake 31 is 60-80m/s, and gas is flowed rapidly in mixed gas tank 30, with the desulfurization in tank
Dosage form resulting mixture.The bottom of the desulfurizing tower 35 is provided with gas approach 36, and top is provided with gas outlet 37, and top is provided with
The desulfurizing agent import 38 being connected with mixed gas tank outlet 33, the desulfurizing tower 35 are additionally provided with heater 39.By desulfurizing agent import
38 into tower be extended have shower nozzle, for by mixed gas tank 30 nitrogen and desulfurizing agent mixture spray into desulfurizing tower 35 in；It is de-
The heating-up temperature of the heater 39 of sulfur tower 35 is 100-220 DEG C.The desulfurizing agent making apparatus include blending tank 1, mounted maintenance equipment 16,
First baker 17, Muffle furnace 18, constant temperature dipping box 19, separator, the second baker 23 and cooler 24；In desulfurizing tower 35,
Mixture containing desulfurizing agent and flue gas reverse flow are fully contacted, gas the going out by top of tower after desulfurization process at high temperature
QI KOU 37 is discharged and is collected.
The blending tank 1, by 11 groups of the destroyer 2 being arranged in order from top to bottom, the first blender 6 and the second blender
Into.Wherein, Open Side Down for the destroyer 2, and what which was open is provided centrally with connecting plate 3, and the connecting plate 3 is by connecting rod and breaks
2 wall of millstone is connected, and the destroyer screen cloth 4 of 60-80 mesh is provided between 3 edge of 2 edge of opening of destroyer and connecting plate, and
And the device screen cloth 4 that is broken completely of the open area between 3 edge of 2 edge of opening of destroyer and connecting plate is covered, connecting plate 3 is circle
Cylindricality, the radial dimension of connecting plate 3 are open radial dimension of 1/3 for destroyer 2, and the destroyer screen cloth 4 at 2 opening of destroyer is
Annular.The top of the disintegrating machine is additionally provided with for adding the destroyer charging aperture 5 of ferrous sulfate and magnesium chloride.
First blender, 6 opening upwards, are provided with the horizontal rotating disc 7 that can be rotated relative to the first blender 6, the level in which
Rotating disk 7 is connected with the first blender 6 by rotating shaft 8, and horizontal rotating disc 7 is coaxially disposed with the first blender 6.The radial direction of destroyer 2
Size is the first blender 6 radial dimension of 5/6, and the bottom of disintegrating machine is located in the first blender 6, also, destroyer 2 connects
The bottom of plate 3 is connected with the top of horizontal rotating disc 7, destroyer 2 is rotated relative to the first blender 6.First blender 6 is also
It is provided with for adding the first charge door 9 of ferrum oxide and fluorite, at the first charge door 9, is provided with the screen cloth of 30-40 mesh；It is described
The bottom of the first blender 6 is provided with and the first blender discharging opening 10 being connected inside the second blender 11.
First blender 6 is connected with the second blender 11, and second blender 11 is provided with for adding polylactic acid
The second charge door 12, the 3rd charge door 13 for adding sodium borate, the gas tank 14 that air is filled with into the second blender 11,
First temperature controller 15 of discharging opening and temperature-control range 90-120 DEG C, is provided with the screen cloth of 50-60 mesh at the second charge door 12.Gas tank
14 pressure control range is 2-10MPa.Crushing cutter, first blender 6 and the second blender 11 are provided with destroyer 2
Rustless steel stirring paddle is provided with inside.First blender discharging opening 10, the second charge door 12, the 3rd charge door 13 and the second blender
11 discharge outlet is provided with sealable valve.
Mounted maintenance equipment 16 is provided with charging aperture, discharging opening and the temperature-control range 80 being connected with the discharging opening of the second blender 11
DEG C -100 DEG C of the 3rd temperature controller 25.
First baker 17 is provided with charging aperture, discharging opening and the temperature-control range being connected with the discharging opening of mounted maintenance equipment 16
120-150 DEG C of the 5th temperature controller 28.
Muffle furnace 18 is provided with charging aperture, discharging opening and the temperature-control range being connected with the discharging opening of the first baker 17
200-250 DEG C of the 4th temperature controller 26.
Constant temperature dipping box 19 be provided be connected with the discharging opening of Muffle furnace 18 charging aperture, for adding liquid polylactic acid
The 4th charge door 20, discharging opening and timer 27；The constant temperature dipping box 19 is additionally provided with the of temperature-control range 120-200 DEG C
Two temperature controllers 21.The inwall of the second blender 11 and constant temperature dipping box 19 is provided with resistive heater.
Centrifugal separator 22 is provided with the charging aperture and solid outlet being connected with the discharging opening of constant temperature dipping box 19.
Second baker 23 is provided with charging aperture, discharging opening and temperature-control range 120-150 DEG C being connected with solid outlet
The 6th temperature controller 29.
Cooler 24 is provided with the charging aperture and outlet being connected with the discharging opening of the second baker 23, mixes gas tank import 32
Outlet with cooler 24 is connected.Condensing tube in cooler 24 is in vertical array arrangement, between the condensing tube of 50% quantity
Communicate.To reduce the even impact to desulfurizing agent performance of inhomogeneous cooling.
Desulfurizing agent 1 prepared by 2 device of embodiment
Using the desulfurizing agent making apparatus in 1 device of embodiment.200g ferrous sulfate and 80g magnesium chlorides are sent into into destroyer
2 are crushed, and are then driven destroyer 2 by horizontal rotating disc 7 and are rotated relative to the first blender 6 with the rotating speed of 700-900r/min,
Under the action of the centrifugal, the destroyer screen cloth 4 at 2 opening of broken material Jing destroyers is entered in the first blender 6.By the first charging
400g ferrum oxides and 150g fluorites are added in 9 to first blenders 6 of mouth, is mixed homogeneously with broken material, mixture Jing first is mixed
First blender discharging opening 10 of 6 bottom of clutch is entered in the second blender 11.From second and third charge door respectively to the second mixing
70g polylactic acid and 50g sodium borate are added in device 11, the first blender discharging opening 10, the second charge door 12, the 3rd charge door is closed
13 and the valve of 11 discharging opening of the second blender, Jing gas tanks 14 into the second blender 11 are filled with air and are maintained at 2MPa, make
In two blenders 11, material is mixed at 130 DEG C -140 DEG C, is conserved 20 hours at 120 DEG C in sending into mounted maintenance equipment 16.
Dried with 160 DEG C in one baker 17, obtain compound A；Then, at then 230 DEG C in Muffle furnace 18, roasting 2 hours, obtains
Calcining matter A；Impregnate 8 hours during calcining matter A to be put into the constant temperature dipping box 19 of 160 DEG C of polylactic acid for filling 200g, Jing centrifugations point
Disembark 22 separation, then dried with 180 DEG C in the second baker 23, and send into cooler 24 and lower the temperature, obtain desulfurizing agent 1.
Number-average molecular weight Mn of the polylactic acid for using is 1.5 × 105-2×105。
Desulfurizing agent 2 prepared by 3 device of embodiment
With reference to 2 method of embodiment, after 350g ferrous sulfate and 140g magnesium chlorides broken, with 530g ferrum oxides, 200g fireflies
Stone mixes, and 130g sodium borate and 150g polylactic acid, the mix homogeneously under 150 DEG C -160 DEG C, 3MPa pressure are added in mixture；
Conserve 25 hours at 140 DEG C, dried with 170 DEG C, then roasting 0.5 hour at 250 DEG C.The calcining matter for obtaining is put into
In 165 DEG C of 450g polylactic acid, constant temperature impregnates 10 hours, after being centrifuged, then in 180 DEG C of drying, cooling, obtains desulfurizing agent
2。
Number-average molecular weight Mn of the polylactic acid for using is 1 × 105-1.5×105。
4 fume desulphurization method I of embodiment
Using embodiment 1 be used for flue gas desulfurization device, by content of sulfur dioxide be 2000mg/L, water content be 5% (w/
The flue gas 10L in thermal power plant w) is passed through in the gas approach 36 of 35 bottom of desulfurizing tower.The desulfurizing agent 1 of embodiment 2 is sent into
In mixed gas tank 30, mixture is formed with nitrogen, the desulfurizing agent import 38 on 35 top of mixture Jing desulfurizing towers is sprayed into by shower nozzle and taken off
In sulfur tower 35, the temperature in desulfurizing tower 35 is maintained at 120-140 DEG C, flue gas and the mixture containing desulfurizing agent in the desulfurizing tower 35 in
Reverse flow under high temperature mixes and keeps contact 30 minutes, and after drawing dedusting, cooling by tower top gas outlet 37, collection is brought about the desired sensation
Body 1.
5 fume desulphurization method II of embodiment
The device of flue gas desulfurization is used for using embodiment 1, is that 2000mg/L, water content are by content of sulfur dioxide after damping
The flue gas 10L in the thermal power plant of 8% (w/w) is passed through in the gas approach 36 of 35 bottom of desulfurizing tower, by the desulfurizing agent of embodiment 3
2 send in mixed gas tank 30, form mixture with nitrogen, and the desulfurizing agent import 38 on 35 top of mixture Jing desulfurizing towers is sprayed by shower nozzle
Enter in desulfurizing tower 35, the temperature in desulfurizing tower 35 is maintained at 150-170 DEG C, flue gas is with the mixture containing desulfurizing agent in desulfurizing tower 35
The interior reverse flow under high temperature mixes and keeps contact 60 minutes, after drawing dedusting, cooling by tower top gas outlet 37, collects
Obtain gas 2.
Comparative example 1
By 400g ferrum oxides, 200g ferrous sulfate, 150g fluorites and 80g magnesium chlorides and 20g water mix homogeneously, magnesium chloride
60-80 eye mesh screens are crossed with ferrous sulfate, fluorite and ferrum oxide cross 30-40 eye mesh screens, then conserve 20 hours at 80-90 DEG C, with
160 DEG C of drying, then roasting 2 hours at 230 DEG C, cool down calcining matter, obtain desulfurizing agent A.
Comparative example 2
By 400g ferrum oxides, 200g ferrous sulfate, 150g fluorites and 80g magnesium chloride mix homogeneously, magnesium chloride and sulphuric acid Asia
Ferrum crosses 60-80 eye mesh screens, and fluorite and ferrum oxide cross 30-40 eye mesh screens.70g polylactic acid is added in the mixture for obtaining, gathers breast
50-60 eye mesh screens, the mix homogeneously at 130 DEG C -140 DEG C are crossed in acid, then are conserved 20 hours at 120 DEG C, are dried with 160 DEG C, are obtained
To compound B.By compound B at 230 DEG C roasting 2 hours, obtain calcining matter B.
Number-average molecular weight Mn of the polylactic acid for using is 1.5 × 105-2×105。
Comparative example 3
Using the desulfurizing tower and mixed gas tank of embodiment 1, by content of sulfur dioxide be 2000mg/L, water content be 5% (w/w)
The flue gas 10L in thermal power plant be passed through in the gas approach of desulfurization tower bottom.Desulfurizing agent A is sent in mixed gas tank, with nitrogen
Mixture is formed, the desulfurizing agent import on mixture Jing desulfurizing towers top is sprayed in desulfurizing tower by shower nozzle, the temperature in desulfurizing tower
120-140 DEG C is maintained at, the reverse flow under high temperature in desulfurizing tower mixes and keeps connecing flue gas with the mixture containing desulfurizing agent
Touch 30 minutes, after dedusting, cooling being drawn by tower top gas outlet, collect to obtain gas A.
Comparative example 4
Using traditional desulfurizing tower, by the thermal power plant that content of sulfur dioxide is 2000mg/L, water content is 5% (w/w)
Flue gas 10L be passed through in the air inlet of desulfurization tower bottom, while the desulfurizing agent 1 of embodiment 2 is sent into the desulfurization on desulfurizing tower top
In agent import, the temperature in desulfurizing tower is maintained at room temperature (about 25-28 DEG C), and the reverse flow in the desulfurizing tower of flue gas and desulfurizing agent is mixed
Merge and keep contact 30 minutes, drawn after dedusting by tower top gas outlet, collect to obtain gas B.
1 desulfurization precision of experimental example, Sulfur capacity and physical property
1st, desulfurization precision
It is containing 5000ppmH to arrange unstripped gas2The nitrogen of S, each 3g of desulfurizing agent 1-2, A of Example 2-3 and comparative example 1,
Carry out multiple desulfurization test between normal pressure (usually 1 atmospheric pressure), 10-45 DEG C respectively, gas air speed is 2000h-1。
Finally measure：Under each temperature conditionss, Jing after desulfurizing agent 1-2 process, outlet total sulfur is below unstripped gas
0.01ppm；Jing after desulfurizing agent A process, outlet total sulfur is about 0.08ppm to unstripped gas.Therefore, desulfurizing agent 1-2 of the present utility model
Desulfurization precision be higher than desulfurizing agent A.
2nd, Sulfur capacity and physical property
Desulfurizing agent 1-2, A of Example 2-3 and comparative example 1 makees sample, determines Sulfur capacity respectively.Sample 100g is taken, 10
DEG C -45 DEG C, under normal pressure (usually 1 atmospheric pressure), with containing H2S is evaluated and tested for the Standard Gases of 40000ppm.Qualitative detection, can be certainly
Detect to exporting sulfur with silver nitrate solution；Detection by quantitative, can be using domestic WK-2C synthesis Microcoulomb instrument (Jiangsu electroanalysis
Instrument plant) detected, the detection limit of the instrument is 0.2ppm, as a result as shown in table 1.
Table 1
| Test event | Desulfurizing agent 1 | Desulfurizing agent 2 | Desulfurizing agent A |
| Sulfur capacity | 78.6% | 82.0% | 45.3% |
It can be seen that, the Sulfur capacity of this utility model desulfurizing agent 1-2 is far longer than desulfurizing agent A.
Jing is determined, and the crushing strength of this utility model desulfurizing agent 1-2 is more than 110N/cm, and specific surface area is 80-120m2/
g；The crushing strength of desulfurizing agent A is 40N/cm, and specific surface area is 50-60m2/g.The resistant to breakage of this utility model desulfurizing agent 1-2
Intensity and specific surface area are above desulfurizing agent A.
Experimental example 2：Mixture uniformity and calcining matter chemical change
1st, mixture uniformity
The compound A-B of embodiment 2, comparative example 2 is detected.
10g is respectively taken to compound A-B as sample at random, micro- sem observation is used, it can be observed that：It is larger in compound B
Granule (may be considered fusion formed granule) concentrate on substantially central authorities, do not scatter；And it is larger in compound A samples
Granule (may be considered fusion formed granule) be distributed in everywhere, disperse more uniform.Therefore, adding sodium borate has
Help make polylactic acid equably merge with other raw materials, then it is observed that the bulky grain being fused into throughout is uniformly distributed.
2nd, calcining matter chemical change
The Nexus 670 of Nicolet companies of the U.S. is adopted to embodiment 2, the compound A-B of comparative example 2 and calcining matter A-B
Type Fourier transformation infrared spectrometer is detected under similarity condition.As a result find：The infrared light of compound B and calcining matter B
Spectrum is extremely approximate；The infrared spectrum difference of calcining matter A and compound A is larger, except the ester group absworption peak in calcining matter A spectrograms subtracts
It is weak outer, 3 absworption peaks more than the spectrogram of the infrared spectrum of calcining matter A also than compound A.Therefore, adding sodium borate contributes to gathering
There is chemical change in roasting process in lactic acid.
Experimental example 3：Desulfuration efficiency
Determine dioxy in gas 1-2, the cumulative volume of gas A-B and each gas that embodiment 4-5 and comparative example 3-4 are collected
Change the content of sulfur, and calculate desulfuration efficiency according to the following formula, the results are shown in Table 2.
Desulfuration efficiency=100% × (V0×C0-V×C)/(V0×C0×t)
Wherein:
V is the cumulative volume (L) for collecting the gas for obtaining；
C is to collect content of sulfur dioxide (mg/L) in the gas for obtaining；
V0Cumulative volume (L) for flue gas；
C0For sulfur dioxide in flue gas content (mg/L)；
T is desulfurization time (h).
Table 2
As shown in Table 2, compared with comparative example 3, the desulfuration efficiency that this utility model is used for the device of flue gas desulfurization is higher, more
Tool economy.Also, compared with comparative example 4, this utility model is using the mixture of nitrogen and desulfurizing agent at high temperature to flue gas
When carrying out desulfurization, desulfuration efficiency is higher.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or
Among changing the protection domain created still in this utility model.
Claims (10)
1. a kind of device for flue gas desulfurization, including,
Mixed gas tank, desulfurizing tower and desulfurizing agent making apparatus；The mixed gas tank is provided with air intake, inlet and outlet；The desulfurization
The bottom of tower is provided with gas approach, and top is provided with gas outlet, and top is provided with the desulfurization being connected with the outlet of mixed gas tank
Agent import, the desulfurizing tower are additionally provided with heater；The desulfurizing agent making apparatus include blending tank, mounted maintenance equipment, the first drying
Device, Muffle furnace, constant temperature dipping box, separator, the second baker and cooler；The blending tank is by being arranged in order from top to bottom
Destroyer, the first blender and the second blender composition；
Wherein, Open Side Down for the destroyer, and what which was open is provided centrally with connecting plate, and the connecting plate is by connecting rod and crushes
Device wall is connected, and the screen cloth of 50-100 mesh is provided between destroyer edge of opening and connecting plate edge；The disintegrating machine is also
It is provided with for adding the charging aperture of ferrous sulfate and magnesium chloride；
The first blender opening upwards, are provided with the horizontal rotating disc that can be rotated relative to the first blender in which, the level turns
Disk is connected with the first blender by rotating shaft；Radial dimension of the radial dimension of first blender more than destroyer；Also,
Horizontal rotating disc is connected with the connecting plate of destroyer, destroyer is rotated relative to the first blender；First blender is arranged
Have for adding the first charge door of ferrum oxide and fluorite, at the first charge door, be provided with the screen cloth of 20-40 mesh；Described first mixes
The bottom of clutch is provided with the discharging opening being connected with the second internal mixer；
Second blender is provided with for adding the second charge door of polylactic acid, the 3rd charging for adding sodium borate
First temperature controller of mouth, the gas tank for oxygen-containing gas is filled with into body, discharging opening and temperature-control range 90-120 DEG C, described
The screen cloth of 20-60 mesh is provided with two charge doors；
The mounted maintenance equipment is provided with the charging aperture and discharging opening being connected with the discharging opening of the second blender；
First baker is provided with the charging aperture and discharging opening being connected with the discharging opening of mounted maintenance equipment；
The Muffle furnace is provided with the charging aperture and discharging opening being connected with the discharging opening of the first baker；
The constant temperature dipping box be provided be connected with the discharging opening of Muffle furnace charging aperture, for add liquid polylactic acid
Four charge doors and discharging opening；The constant temperature dipping box is additionally provided with the second temperature controller of temperature-control range 120-200 DEG C；
The separator is provided with the charging aperture and solid outlet being connected with the discharging opening of constant temperature dipping box；
Second baker is provided with the charging aperture and discharging opening being connected with solid outlet；
The cooler is provided with the charging aperture and outlet being connected with the discharging opening of the second baker；
The import of mixed gas tank is connected with the outlet of cooler.
2. device according to claim 1, it is characterised in that the mounted maintenance equipment is additionally provided with 80 DEG C -100 DEG C of temperature-control range
The 3rd temperature controller.
3. device according to claim 1, it is characterised in that the Muffle furnace is additionally provided with temperature-control range 200-250 DEG C
The 4th temperature controller.
4. device according to claim 1, it is characterised in that the constant temperature dipping box is additionally provided with intervalometer.
5. device according to claim 1, it is characterised in that first baker is additionally provided with temperature-control range 120-
150 DEG C of the 5th temperature controller.
6. device according to claim 1, it is characterised in that second baker is additionally provided with temperature-control range 120-
150 DEG C of the 6th temperature controller.
7. device according to claim 1, it is characterised in that crushing cutter is provided with the destroyer, described first mixes
Stirring paddle is provided with clutch and the second blender.
8. device according to claim 1, it is characterised in that the connecting plate is cylinder.
9. device according to claim 1, it is characterised in that the screen cloth at the destroyer opening is annular.
10. the device according to any one of claim 1-9, it is characterised in that second blender and constant temperature dipping
The inwall of case is provided with resistive heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621006561.3U CN206045755U (en) | 2016-08-30 | 2016-08-30 | For the device of flue gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621006561.3U CN206045755U (en) | 2016-08-30 | 2016-08-30 | For the device of flue gas desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206045755U true CN206045755U (en) | 2017-03-29 |
Family
ID=58379294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621006561.3U Expired - Fee Related CN206045755U (en) | 2016-08-30 | 2016-08-30 | For the device of flue gas desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206045755U (en) |
-
2016
- 2016-08-30 CN CN201621006561.3U patent/CN206045755U/en not_active Expired - Fee Related
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Granted publication date: 20170329 Termination date: 20170830 |