CN105214592A - Bodied ferric sulfate reaction unit - Google Patents
Bodied ferric sulfate reaction unit Download PDFInfo
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- CN105214592A CN105214592A CN201510655217.0A CN201510655217A CN105214592A CN 105214592 A CN105214592 A CN 105214592A CN 201510655217 A CN201510655217 A CN 201510655217A CN 105214592 A CN105214592 A CN 105214592A
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Abstract
Bodied ferric sulfate reaction unit, comprise reactor and circulation line, the kettle of reactor is provided with exhaust outlet, manhole, charging aperture and discharging opening, comprise circulating line, circulating pump, discharge pipe and catalyst feed line, the inner chamber of reactor is provided with porous sieve plate unit and aeration unit, porous sieve plate unit is made up of top layer sieve plate, bottom sieve plate and obturator, and aeration unit is made up of steam line and the plural aeration plate be arranged on steam line.Beneficial effect of the present invention is mainly reflected in, in traditional reactor, set up porous sieve plate unit and aeration unit, increases contact area and the time of contact of gas-liquid, improves reaction rate and production efficiency; Participate in not dissolving solid granulates and being trapped on porous sieve plate unit of reaction, effectively prevent solid particle to the shock of reactor wall, decrease wearing and tearing, extend the service life of reactor; Accompanying-heat cable can carry out initial stage heat supply to circulating line, effectively prevents blocking pipe after ferrous sulfate crystallization.
Description
Technical field
The present invention relates to a kind of reaction unit, particularly relate to a kind of reaction unit producing bodied ferric sulfate.
Background technology
Bodied ferric sulfate is a kind of sewage-treating agent efficiently, and its excellent flocculating effect makes it get more and more in the application of sewage and mud industry.The method of current production bodied ferric sulfate is more, but applying comparatively general method in suitability for industrialized production is catalytic oxidation, namely with ferrous sulfate and sulfuric acid for raw material, by the effect of catalyst, catalyst is mainly natrium nitrosum, utilize oxidant oxygen or air to make ferrous sulfate be oxidized to ferric sulfate, be then hydrolyzed, be polymerized and make bodied ferric sulfate.
What play major catalytic oxidation in the preparating mechanism of bodied ferric sulfate is oxygen and oxynitrides, is typical gas liquid reaction, therefore increases gas liquid interfacial area or increases liquid phase pressure, and ability Reaction time shorten, improves reaction efficiency.
When tradition reactor carries out bodied ferric sulfate production, the power mainly agitator of gas-liquid contact, the area of gas-liquid contact is little, and cause the efficiency of reaction lower, the reaction time is longer, on average all more than 6 hours, have impact on the production efficiency of product greatly.
In order to solve above-mentioned deficiency, many researchers propose many improving one's methods to consersion unit, and as improved reactor mixing speed, the means such as the highest withstand voltage of augmenting response still increase gas liquid interfacial area, improve reaction rate.Even if improve these conditions, the reduction that reaction time is also only limited, after reduction also more than 4 hours, reaction efficiency is still lower, so these exacting terms limit the progress of bodied ferric sulfate production technology, thus the output of bodied ferric sulfate is caused not catch up with the demand day by day increased.
Chinese patent 2009100477950 discloses a kind of method of preparing ferric chloride by quickly oxidizing iron dichloride, concrete, after being stirred evenly by material, circulating pump is utilized to make liquid be in recurrent state, then in liquid-circulating process, under a certain pressure, oxygen is passed into by gas-adding pipe.Thus realize ferrous to ferric iron transformation, finally obtain product.And in the preparation process of bodied ferric sulfate, raw material solid ferrous sulfate is easy to crystallization, especially in winter, when with pipeline charging, solution runs into cold pipeline, is easy to Crystallization Plugging pipeline, causes reaction to be slowed down, and even causes reaction system to collapse.Enter oxygen additionally by air inlet pipe, cause the oxygen that passes into uneven, cause material local reaction, the area of gas-liquid contact is little, causes the efficiency of reacting lower.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, a kind of bodied ferric sulfate reaction unit is provided.
In order to achieve the above object, the technical solution adopted in the present invention is:
Bodied ferric sulfate reaction unit, comprise reactor and circulation line, described reactor is vertical response still, the base for fixing and load-bearing is provided with below reactor, the kettle of reactor is provided with exhaust outlet, manhole, charging aperture and discharging opening, charging aperture is positioned at directly over the top of reactor, discharging opening is positioned at reactor bottom centre position, charging aperture on described circulation line and reactor and discharging opening join end to end, comprise circulating line, be arranged at the circulating pump on circulating line, discharge pipe and catalyst feed line, it is characterized in that: the inner chamber of described reactor is provided with porous sieve plate unit and aeration unit, described porous sieve plate unit horizontal is arranged at the first half of kettle inner chamber, it is by top layer sieve plate, bottom sieve plate and the obturator be located between described top layer sieve plate and bottom sieve plate form, described aeration unit is arranged at the bottom of kettle inner chamber, it is made up of steam line and the plural aeration plate be arranged on described steam line, described steam line is connected with the air feed facility of reactor outside.
Further, described obturator at least comprises annular filling body and ring saddle type obturator.
Further, described annular filling body at least comprises Pall ring obturator and cascade ring obturator, wherein, described Pall ring obturator is PP Pall ring obturator, PVC Pall ring obturator or PTFE Pall ring obturator, and described cascade ring obturator is PP cascade ring obturator, PVC cascade ring obturator or PTFE cascade ring obturator.
Further, described top layer sieve plate and bottom sieve plate all have plural equally distributed sieve aperture, and described sieve diameter is 10 ~ 20mm.
Further, the bottom surface of described bottom sieve plate is between 2/3 to 3/4 of reactor height, and the whole height of described porous sieve plate unit accounts for 2.5% ~ 5% of reactor total height.
Further, described steam line comprises one and arrives the air inlet pipe of reactor inner chamber and at least one ring pipe through reactor kettle wall, and described aeration plate is evenly arranged on described ring pipe.
Further, on described circulating line, winding is provided with accompanying-heat cable.
Further, the top of described reactor is also provided with the Pressure gauge for detecting its chamber pressure.
Further, described circulating pump is centrifugal pump.
Beneficial effect of the present invention is mainly reflected in:
1. in traditional reactor, porous sieve plate unit and aeration unit have been set up, porous sieve plate unit adds the hover time of liquid by obturator, oxygen exposes from aeration unit, fill the air in whole reactor, increase contact area and the time of contact of gas-liquid, improve reaction rate and production efficiency;
2. participate in not dissolving solid granulates and being trapped on porous sieve plate unit of reaction, effectively prevent solid particle to the shock of reactor wall, decrease wearing and tearing, extend the service life of reactor;
3. accompanying-heat cable can carry out initial stage heat supply to circulating line, effectively prevents blocking pipe after ferrous sulfate crystallization;
4. the course of reaction of reactor all under low pressure completes, less to the impulsive force of reactor, extends the service life of reactor further.
Accompanying drawing explanation
Fig. 1 is the structural representation of bodied ferric sulfate reaction unit of the present invention.
Detailed description of the invention
The invention provides bodied ferric sulfate reaction unit, reaction efficiency is high.Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail, is easier to make it understand and grasp.
Bodied ferric sulfate reaction unit, comprise reactor and circulation line, described reactor is vertical response still, the base for fixing and load-bearing is provided with below reactor, the kettle 11 of reactor is provided with exhaust outlet 9, manhole 15 and charging aperture 8 and discharging opening 17, charging aperture 8 is positioned at directly over the top of reactor, discharging opening 17 is positioned at reactor bottom centre position, in addition, kettle top is also provided with one for detecting the Pressure gauge 10 of its chamber pressure, charging aperture 8 on circulation line and reactor and discharging opening 17 join end to end, comprise circulating line 4, be arranged at the circulating pump 2 on circulating line 4, discharge pipe 3 and catalyst feed line 6, circulating pump 2 is centrifugal pump, enter circulating line 4 bottom kettle 11 and there is a ball valve 18, catalyst feed line has a check valve 7, kettle 11 inner chamber of reactor is provided with porous sieve plate unit and aeration unit, porous sieve plate unit horizontal is arranged at the first half of kettle 11 inner chamber, it is by top layer sieve plate 12, bottom sieve plate 14 and the obturator 13 be located between top layer sieve plate 12 and bottom sieve plate 14 form, aeration unit is arranged at the bottom of kettle 11 inner chamber, it is made up of steam line 16 and the plural aeration plate 20 be arranged on circulating line 19, steam line is connected with the air feed facility of reactor outside.
The material that refinement describes the obturator in this case is inert solid material, describes from structure, and obturator at least comprises annular filling body, ring saddle type obturator.Annular filling body at least comprises Pall ring obturator, cascade ring obturator, and ring saddle type obturator at least comprises metal ring intalox obturator.Wherein, the material of Pall ring obturator and cascade ring obturator is PP, PVC or PTFE, and the material of metal ring intalox obturator is generally corrosion resistant metal.When for Pall ring obturator, model specification is (diameter x height x wall thickness) 25mm*25mm*1.2mm, when for cascade ring obturator, model specification is (diameter x height x wall thickness) 25mm*13mm*1.2mm, when for metal ring intalox obturator, model specification is (diameter x height x wall thickness) 25mm*20mm*0.6mm.
Be further described top layer, bottom sieve plate, top layer sieve plate and bottom sieve plate all have plural equally distributed sieve aperture, and the sieve diameter of sieve plate is 10 ~ 20mm, optimum is 15mm, and the pitch of holes of sieve aperture is 15 ~ 25mm, and optimum is 20mm, the thickness of sieve plate is 3 ~ 10mm, and optimum is 5mm.
In addition, for increasing the isolation effect of porous sieve plate unit, make gas liquid reaction more stable, the bottom surface of bottom sieve plate is between 2/3 to 3/4 of reactor height, and deck unit is separated with reactant liquor, is so more conducive to obturator and increases gas liquid interfacial area.
Refinement describes aeration unit, wherein, steam line 16 forms with at least one looping tube 19 through the air inlet pipe of kettle wall to kettle inner chamber by one, aeration plate 20 is evenly arranged on looping tube 19, steam line is stainless steel, aeration plate be arranged so that its give vent to anger evenly, in addition, the solarization air cap aperture of aeration plate is 100 ~ 200um, and the bubble exposed is tiny.
Be optimized circulation line, circulating line 4 is wound around and is provided with accompanying-heat cable 5, accompanying-heat cable 5 pairs of circulating lines can carry out computer heating control, effectively prevent blocking pipe after ferrous sulfate crystallization.
Finally, circulating line 4 is connected with outside feed pipe, feed pipe 1 pair of direct feed of circulating line, and without the need to setting up intervention passage on reactor, the boring and the sealing that eliminate passage are arranged, and reduce the cost of reactor.
Specific works principle and the operating process of bodied ferric sulfate reaction unit of the present invention are as follows:
First carry out catalyst making, be placed in agitator by natrium nitrosum solid, the stirring and dissolving that adds water is certain density solution, then carries out feed operation.Concrete, first open accompanying-heat cable 5 pairs of circulating lines 4 and carry out low temperature (60 DEG C) heating, effectively can prevent ferrous sulfate crystallization, blocking pipe, heating can accelerate the flowing of solid-liquid mixed solution in addition, shortens feed time.Then by the mixed solution of the ferrous sulfate that stirs evenly and sulfuric acid by feed pipe 1 charging, material enters in circulating line 4, enter in circulating line 4 by solvent sodium nitrite solution by catalyst feed line 6, the check valve 7 on catalyst feed line 6 can effectively prevent solution return in the agitator holding catalyst solution simultaneously.Enter in the lump after in kettle 11 until main material and catalyst, close accompanying-heat cable 5, the cumulative volume of the mixed solution that main material and catalyst are formed is the 3/5-4/5 of kettle 11 cumulative volume, and in mixed solution, solid-liquid volume ratio is less than 1:5.Then cycling is carried out, close the ball valve of feed pipe 1, open the ball valve 18 entering circulating line 4 bottom kettle 11, solution starts circulation, now carries out exposing to the sun oxygen by aeration unit, the continuous circular response of reactant liquor, wherein, mixed solution flows into top layer sieve plate 12 by circulating line 4, through obturator 13, enter after kettle 11 inner chamber Lower Half through bottom sieve plate 14 again and enter circulating line 4 again, circulate and so forth.In mixed solution, undissolved solid is stayed on sieve plate, the average height that on top layer sieve plate 12, undissolved solid particles is formed is less than 1/7 of kettle 11 total height, liquid stream is through having the obturator 13 compared with bigger serface, in circulation way, oxygen is by the oxygen supply of steam line 16 pairs of aeration plates 20, evenly tiny bubble is exposed in aeration plate 20, fill the air on whole kettle 11 inner chamber and obturator 13, in the process, gas-liquid mixed is even, and have larger contact area, obturator 13 turn increases the time that gas-liquid stops, this process can increase gas liquid interfacial area, improve reaction efficiency, Reaction time shorten greatly.By continuous circulation, reacted by the dissolution of solid of solubilizing reaction non-on sieve plate, until reaction terminates, whole process only needs 1.5-2 hour, both can react end, has greatly saved the reaction time.Finally carry out detection draw operation, release a little product from discharge pipe 3, and detect, testing result does not meet national standard, namely carries out circular response again; When testing result meets national standard, both can think that reaction terminated, product all can have been released.
By describing above and can finding, present invention is disclosed a kind of bodied ferric sulfate reaction unit, porous sieve plate unit adds the hover time of liquid by obturator, oxygen exposes from aeration unit, fill the air in whole reactor, increase contact area and the time of contact of gas-liquid, improve reaction rate and production efficiency; Participate in not dissolving solid granulates and being trapped on porous sieve plate unit of reaction, effectively prevent solid particle to the shock of reactor wall, decrease wearing and tearing, extend the service life of reactor; Accompanying-heat cable can carry out initial stage heat supply to circulating line, effectively prevents blocking pipe after ferrous sulfate crystallization; The course of reaction of reactor all under low pressure completes, less to the impulsive force of reactor, extends the service life of reactor further.
Above abundant description is carried out to technical scheme of the present invention; it should be noted that; the specific embodiment of the present invention is not by the restriction of foregoing description; those of ordinary skill in the art adopts equivalents or equivalent transformation and all technical schemes formed according to Spirit Essence of the present invention in structure, method or function etc., all drops within protection scope of the present invention.
Claims (9)
1. bodied ferric sulfate reaction unit, comprise reactor and circulation line, described reactor is vertical response still, the base for fixing and load-bearing is provided with below reactor, the kettle of reactor is provided with exhaust outlet, manhole, charging aperture and discharging opening, charging aperture is positioned at directly over the top of reactor, discharging opening is positioned at reactor bottom centre position, charging aperture on described circulation line and reactor and discharging opening join end to end, comprise circulating line, be arranged at the circulating pump on circulating line, discharge pipe and catalyst feed line, it is characterized in that: the inner chamber of described reactor is provided with porous sieve plate unit and aeration unit, described porous sieve plate unit horizontal is arranged at the first half of kettle inner chamber, it is by top layer sieve plate, bottom sieve plate and the obturator be located between described top layer sieve plate and bottom sieve plate form, described aeration unit is arranged at the bottom of kettle inner chamber, it is made up of steam line and the plural aeration plate be arranged on described steam line, described steam line is connected with the air feed facility of reactor outside.
2. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: described obturator at least comprises annular filling body and ring saddle type obturator.
3. bodied ferric sulfate reaction unit according to claim 2, it is characterized in that: described annular filling body at least comprises Pall ring obturator and cascade ring obturator, wherein, described Pall ring obturator is PP Pall ring obturator, PVC Pall ring obturator or PTFE Pall ring obturator, and described cascade ring obturator is PP cascade ring obturator, PVC cascade ring obturator or PTFE cascade ring obturator.
4. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: described top layer sieve plate and bottom sieve plate all have plural equally distributed sieve aperture, and described sieve diameter is 10 ~ 20mm.
5. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: the bottom surface of described bottom sieve plate is between 2/3 to 3/4 of reactor height, and the whole height of described porous sieve plate unit accounts for 2.5% ~ 5% of reactor total height.
6. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: described steam line comprises one and arrives the air inlet pipe of reactor inner chamber and at least one ring pipe through reactor kettle wall, and described aeration plate is evenly arranged on described ring pipe.
7. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: described circulating line is wound around and is provided with accompanying-heat cable.
8. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: the top of described reactor is also provided with the Pressure gauge for detecting its chamber pressure.
9. bodied ferric sulfate reaction unit according to claim 1, is characterized in that: described circulating pump is centrifugal pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510655217.0A CN105214592A (en) | 2015-10-12 | 2015-10-12 | Bodied ferric sulfate reaction unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510655217.0A CN105214592A (en) | 2015-10-12 | 2015-10-12 | Bodied ferric sulfate reaction unit |
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| CN105214592A true CN105214592A (en) | 2016-01-06 |
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| CN201510655217.0A Pending CN105214592A (en) | 2015-10-12 | 2015-10-12 | Bodied ferric sulfate reaction unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973602A (en) * | 2021-03-17 | 2021-06-18 | 徐州清流水环保科技有限公司 | Catalytic oxidation reaction kettle for producing polymeric ferric sulfate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3169835A (en) * | 1959-07-01 | 1965-02-16 | Exxon Research Engineering Co | Fluidized solids technique |
| CN203264720U (en) * | 2013-05-04 | 2013-11-06 | 安徽奔马先端科技有限公司 | Reaction kettle with mixed feeding device for chemical reaction process |
| CN104096456A (en) * | 2014-07-21 | 2014-10-15 | 苏州塔可盛电子科技有限公司 | Efficient absorption tower |
| CN203971694U (en) * | 2014-07-21 | 2014-12-03 | 苏州塔可盛电子科技有限公司 | A kind of efficient absorption tower |
| CN205084746U (en) * | 2015-10-12 | 2016-03-16 | 江苏绿威环保科技有限公司 | Polyferric sulfate reaction unit |
-
2015
- 2015-10-12 CN CN201510655217.0A patent/CN105214592A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3169835A (en) * | 1959-07-01 | 1965-02-16 | Exxon Research Engineering Co | Fluidized solids technique |
| CN203264720U (en) * | 2013-05-04 | 2013-11-06 | 安徽奔马先端科技有限公司 | Reaction kettle with mixed feeding device for chemical reaction process |
| CN104096456A (en) * | 2014-07-21 | 2014-10-15 | 苏州塔可盛电子科技有限公司 | Efficient absorption tower |
| CN203971694U (en) * | 2014-07-21 | 2014-12-03 | 苏州塔可盛电子科技有限公司 | A kind of efficient absorption tower |
| CN205084746U (en) * | 2015-10-12 | 2016-03-16 | 江苏绿威环保科技有限公司 | Polyferric sulfate reaction unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973602A (en) * | 2021-03-17 | 2021-06-18 | 徐州清流水环保科技有限公司 | Catalytic oxidation reaction kettle for producing polymeric ferric sulfate |
| CN112973602B (en) * | 2021-03-17 | 2022-04-01 | 徐州清流水环保科技有限公司 | Catalytic oxidation reaction kettle for producing polymeric ferric sulfate |
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Application publication date: 20160106 |