CN104692836A - Method for preparing calcium superphosphate slurry subjected to single-groove multi-paddle stirring and curing and production equipment for calcium superphosphate slurry - Google Patents
Method for preparing calcium superphosphate slurry subjected to single-groove multi-paddle stirring and curing and production equipment for calcium superphosphate slurry Download PDFInfo
- Publication number
- CN104692836A CN104692836A CN201510143856.9A CN201510143856A CN104692836A CN 104692836 A CN104692836 A CN 104692836A CN 201510143856 A CN201510143856 A CN 201510143856A CN 104692836 A CN104692836 A CN 104692836A
- Authority
- CN
- China
- Prior art keywords
- reaction district
- slaking
- slaking reaction
- curing reaction
- calcium superphosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 title claims abstract description 30
- 229910000389 calcium phosphate Inorganic materials 0.000 title claims abstract description 30
- 235000019691 monocalcium phosphate Nutrition 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000002002 slurry Substances 0.000 title claims abstract description 21
- 238000003756 stirring Methods 0.000 title claims abstract description 17
- 238000001723 curing Methods 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 162
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 3
- 239000011268 mixed slurry Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005469 granulation Methods 0.000 abstract description 3
- 230000003179 granulation Effects 0.000 abstract description 3
- 238000006386 neutralization reaction Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012066 reaction slurry Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/10—Apparatus for the manufacture of superphosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for preparing calcium superphosphate slurry subjected to single-groove multi-paddle stirring and curing and production equipment for the calcium superphosphate slurry. The production equipment comprises N curing reaction areas with stirrers, wherein one curing reaction area is arranged at the center, the remaining curing reaction areas are arranged around the curing reaction area at the center, and the remaining curing reaction areas are sequentially set as the first curing reaction area, the second curing reaction area... and the (N-1)<th> curing reaction area according to the curing reaction sequence. The curing reaction area at the center is set as the N<th> curing reaction area. In the curing reaction areas from the first curing reaction area to the (N-1)<th> curing reaction area, every two adjacent curing reaction areas are communicated, and the bottom of the (N-1)<th> curing reaction area and the bottom of the N<th> curing reaction area are communicated. A feeding opening of the first curing reaction area is communicated with a mixed reaction feeder, a water inlet of the second curing reaction area is communicated with a water pipe, and a discharging opening of the N<th> curing reaction area is communicated with a pump slurry pipe. By means of the preparation method and the production equipment, qualified and stable materials are provided for the slurry neutralization process and the slurry spraying granulation process, and the continuity of the calcium superphosphate slurry spraying granulation production technology can be guaranteed completely.
Description
Technical field
The present invention relates to manufacture craft and the equipment of fertilizer, be specially calcium superphosphate Pulp preparation method and production unit thereof that the many oars of a kind of single groove stir slaking.
Background technology
The production technique of tradition calcium superphosphate is as follows:
1, phosphate ore pulp and the vitriol oil carry out ore deposit acid chemical reaction in five oar mixing tanks, and the reaction times is about 1min ~ 5min, and phosphorus reaction rate reaches 65% ~ 70%.
2, reaction slurry flows into formation chamber solidification voluntarily.
3, the material after solidification shifts out from formation chamber and shreds, and delivers to slaking storehouse and stacks, and constantly turning cooling, water evaporates, promote slaking reaction.Reaction times needs to reach several days or several weeks, usually at 7 days ~ 15 days.
4, the calcium superphosphate material after slaking reaction is broken into powder further and can packs and dispatch from the factory, or the calcium superphosphate material after slaking reaction can be turned Gu granulation through granulating method as required, becomes particulate product and dispatches from the factory.
In above-mentioned production technique, the slaking reaction overlong time of calcium superphosphate, causes production efficiency low; Meanwhile, a large amount of fluorinated tail gas that slaking reaction produces cause severe contamination to production environment.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention proposes calcium superphosphate Pulp preparation method and the production unit thereof that a kind of many oars of single groove that significantly can shorten the slaking reaction time stir slaking.
The many oars of single groove that can solve the problems of the technologies described above stir the calcium superphosphate slip production unit of slaking, comprise the N number of slaking reaction district being provided with agitator, difference is that one of them slaking reaction district is arranged between two parties, all the other (N-1) individual slaking reaction districts arrange around slaking reaction district placed in the middle and are set as 1# slaking reaction district successively by slaking reaction order, 2# slaking reaction district, (N-1) # slaking reaction district, and slaking reaction district placed in the middle is set as N# slaking reaction district, in 1# ~ (N-1) # slaking reaction district, the slaking reaction district of adjacent each # communicates, (N-1) identical in bottom between # slaking reaction district with N# slaking reaction district, the opening for feed in 1# slaking reaction district is communicated with hybrid reaction feeder, and the water-in in 2# slaking reaction district is communicated with water pipe, and the discharge port in N# slaking reaction district is communicated with pump slurry pipe.
A kind of generation type in N number of slaking reaction district is: inside and outside cylindrical shell coaxial package, and inner barrel is N# slaking reaction district, marks off (N-1) individual interval corresponding to each slaking reaction district between inside and outside cylindrical shell.
Inside and outside cylindrical shell is provided with the unified collector collecting each slaking reaction district tail gas, and the fluorine tail gas produced to prevent slaking reaction is to airborne release.
The many oars of single groove taking above-mentioned calcium superphosphate slip production unit stir the calcium superphosphate Pulp preparation method of slaking, and its process is as follows:
1, phosphate ore pulp and the vitriol oil enter in hybrid reaction feeder respectively, and reacted mixed slurry imports 1# slaking reaction district.
2, the slurry in 1# slaking reaction district enters 2# slaking reaction district under the effect of agitator.
3, the slip in 2# slaking reaction district enters 3# slaking reaction district under the effect of agitator.
4, so analogize, the slip in (N-1) # slaking reaction district enters N# slaking reaction district under the effect of agitator.
5, according to the concentration levels detecting N# slaking reaction district slip, regulate the water yield entering 2# slaking reaction district, regulate pulp density to reach technic index with this.
6, the slip slaking in N# slaking reaction district qualified after, through pump slurry pipe pump after operation process.
Under the effect of each propeller-blade, slip goes to upper and lower the form flowing of mutually staggering in each slaking reaction district, and this measure is conducive to the diffusive mixing effect improving slip.
Arrange the unified tail gas collected each slaking reaction district and produce of collector, the collection of described tail gas and 1 ~ 6 process synchronously carry out.
Beneficial effect of the present invention:
1, the present invention utilizes single groove many slurries continuously stirring slaking calcium superphosphate slurry processes, enhances the slaking reaction speed of fresh calcium, solves fresh calcium maturing process technical problem slowly in Production of Single Superphosphate, drastically reduce the area the time of fresh calcium slaking; Meanwhile, owing to being provided with the collector collecting fluorinated tail gas, unified collection fluorinated tail gas, thoroughly avoids the fluorinated tail gas pollution problem that the slaking of Traditional Method production technique exists.
2, the present invention is in slip and operation and spray granulating operation provide qualified and stable material, can ensure the continuity of calcium superphosphate spray granulating production technique completely.
3, mechanical means required for the present invention is general, easy and simple to handle, and the work in-process maturation process time is short, it is the committed step that the making of slurry process calcium superphosphate spray granulating novel process need have, technological process is succinct, production process clean environment firendly, and effect is quite remarkable, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present invention.
Figure number identifies: 1, agitator; 2,1# slaking reaction district; 3,2# slaking reaction district; 4, hybrid reaction feeder; 5, pump slurry pipe; 6, collector; 7, inner barrel; 8, outer cylinder body; 9, dividing plate; 10,3# slaking reaction district; 11,4# slaking reaction district; 12,5# slaking reaction district; 13,6# slaking reaction district.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, technical scheme of the present invention is described further.
The calcium superphosphate slip production unit of list groove of the present invention many oars stirring slaking comprises the inside and outside cylindrical shell 7,8 of coaxial package, described inner barrel 7 is set to 6# slaking reaction district 13, in, outer cylinder body 7, annulus region between 8 is divided into five parts, 1# slaking reaction district 2 is set as successively by slaking reaction order (in the counterclockwise direction), 2# slaking reaction district 3, 3# slaking reaction district 10, 4# slaking reaction district 11 and 5# slaking reaction district 12, in each slaking reaction district, correspondence is provided with the agitator 1 that has two-layer above blade, between 1# slaking reaction district 2 and 2# slaking reaction district 3, between 2# slaking reaction district 3 and 3# slaking reaction district 10, between 3# slaking reaction district 10 and 4# slaking reaction district 11, accessible communicating is between 4# slaking reaction district 11 with 5# slaking reaction district 12, open close by dividing plate 9 between 1# slaking reaction district 2 and 5# slaking reaction district 12, communicated by the opening bottom inner barrel 7 between 5# slaking reaction district 12 with 6# slaking reaction district 13, as shown in Figure 1.
The outer cylinder body 8 on top, 1# slaking reaction district 2 offers opening for feed, and described opening for feed is communicated with the hybrid reaction feeder 4 (also known as five oar mixing tanks) that oblique below is arranged; The outer cylinder body 8 on top, 2# slaking reaction district 3 offers water-in, and described water-in is communicated with water pipe; Install collector 6 above described inside and outside cylindrical shell 7,8, the gas hood of described collector 6 is arranged on the place suitable for reading of inside and outside cylindrical shell 7,8, and the air outlet of described gas hood is communicated with induced exhaust; Arrange pump slurry pipe 5 outside gas hood, described pump slurry pipe 5 enters the top in 6# slaking reaction district 13 by gas hood, as shown in Figure 1.
Adopt above-mentioned production unit to prepare the method for calcium superphosphate slip, comprise following process:
1, phosphate ore pulp and the vitriol oil enter the mixing of hybrid reaction feeder 4 inner height respectively, quick ore deposit acid chemical reaction is carried out under the temperature of reaction condition of 100 DEG C ~ 120 DEG C, after reaction slurry obtains higher phosphorous transformation efficiency (65%-72%) in 1min ~ 5min, import 1# slaking reaction district 2.
2, enter the slip in 1# slaking reaction district 2, act on downhill reaction district flows at agitator 1 and enter 2# slaking reaction district 3.
3, enter the slip in 2# slaking reaction district 3, act on direction in downhill reaction district at agitator 1 and flow and enter 3# slaking reaction district 10.
4, enter the slip in 3# slaking reaction district 10, act on downhill reaction district flows at agitator 1 and enter 4# slaking reaction district 11.
5, enter the slip in 4# slaking reaction district 11, act at agitator 1 and to flow above downhill reaction district and to enter 5# slaking reaction district 12.
6, enter the slip in 5# slaking reaction district 12, act on downhill reaction district flows at agitator 1, and enter 6# slaking reaction district 13 by the opening bottom inner barrel 7, slip acts on above downhill reaction district at agitator 1 and flowing.
7, according to the concentration levels detecting 6# slaking reaction district 13 slip, the water yield entering 2# slaking reaction district 3 is regulated by water pipe, to regulate pulp density to reach technic index requirement.
8, slaking is qualified and reach the calcium superphosphate slip that technic index requires, operation process (neutralization, spray granulating) after pump slurry pipe 5 is pumped top, 6# slaking reaction district 13.
The unified fluorinated tail gas collected each slaking reaction district and produce of described collector 6, the collection of described tail gas and 1 ~ 8 process synchronously carry out.
The above-mentioned method survey preparing calcium superphosphate slip is:
Phosphate ore pulp and the sulfuric acid slip that reaction decomposes obtains in hybrid reaction feeder 4, stirring slaking reaction is carried out respectively through being equipped with the 1# slaking reaction district 2 of agitator 1,2# slaking reaction district 3,3# slaking reaction district 10,4# slaking reaction district 11,5# slaking reaction district 12 and 6# slaking reaction district 13, total reaction time is about a few hours (about 6 hours ~ 8 hours), make the technic index of calcium superphosphate slip reach requirement, technique is prepared as operate continuously.
Claims (6)
1. the many oars of single groove stir the calcium superphosphate slip production unit of slaking, comprise the N number of slaking reaction district being provided with agitator (1), it is characterized in that: one of them slaking reaction district is arranged between two parties, all the other (N-1) individual slaking reaction districts arrange around slaking reaction district placed in the middle and are set as 1# slaking reaction district (2) successively by slaking reaction order, 2# slaking reaction district (3), (N-1) # slaking reaction district, and slaking reaction district placed in the middle is set as N# slaking reaction district, in 1# ~ (N-1) # slaking reaction district, the slaking reaction district of adjacent each # communicates, (N-1) identical in bottom between # slaking reaction district with N# slaking reaction district, the opening for feed in 1# slaking reaction district (2) is communicated with hybrid reaction feeder (4), and the water-in in 2# slaking reaction district (3) is communicated with water pipe, and the discharge port in N# slaking reaction district is communicated with pump slurry pipe (5).
2. the many oars of single groove stir the calcium superphosphate slip production unit of slaking according to claim 1, it is characterized in that: inside and outside cylindrical shell (7,8) coaxial package, inner barrel (7) is N# slaking reaction district, corresponds to (N-1) each slaking reaction district and mark off (N-1) individual interval between inside and outside cylindrical shell (7,8).
3. the many oars of single groove stir the calcium superphosphate slip production unit of slaking according to claim 2, it is characterized in that: inside and outside cylindrical shell (7,8) is provided with the unified collector (6) collecting each slaking reaction district tail gas.
4. the many oars of single groove stir the calcium superphosphate Pulp preparation method of slaking, and it is characterized in that taking the calcium superphosphate slip production unit that the many oars of single groove described in any one in claims 1 to 3 stir slaking, its process is as follows:
1., phosphate ore pulp and the vitriol oil enter in hybrid reaction feeder (4) respectively, and reacted mixed slurry imports 1# slaking reaction district (2);
2., the slurry of 1# slaking reaction district (2) enters 2# slaking reaction district (3) under the effect of agitator (1);
3., the slip of 2# slaking reaction district (3) enters 3# slaking reaction district (10) under the effect of agitator (1);
4., so analogize, the slip in (N-1) # slaking reaction district enters N# slaking reaction district under the effect of agitator (1);
5., according to the concentration levels detecting N# slaking reaction district slip, regulate the water yield entering 2# slaking reaction district (3), regulate pulp density to reach technic index with this;
6., the slip slaking in N# slaking reaction district qualified after, operation process after pump slurry pipe (5) is pumped.
5. the many oars of single groove stir the calcium superphosphate Pulp preparation method of slaking according to claim 4, it is characterized in that: under the effect of each agitator (1) blade, and slip goes to upper and lower the form flowing of mutually staggering in each slaking reaction district.
6. the many oars of single groove stir the calcium superphosphate Pulp preparation method of slaking according to claim 4, it is characterized in that: the unified tail gas collected each slaking reaction district and produce of collector (6) is set, the collection of described tail gas with 1. ~ 6. process synchronously carry out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143856.9A CN104692836B (en) | 2015-03-31 | 2015-03-31 | The calcium superphosphate slurry preparation method and its production equipment of single many oar stirring curings of groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143856.9A CN104692836B (en) | 2015-03-31 | 2015-03-31 | The calcium superphosphate slurry preparation method and its production equipment of single many oar stirring curings of groove |
Publications (2)
| Publication Number | Publication Date |
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| CN104692836A true CN104692836A (en) | 2015-06-10 |
| CN104692836B CN104692836B (en) | 2017-09-08 |
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| CN201510143856.9A Active CN104692836B (en) | 2015-03-31 | 2015-03-31 | The calcium superphosphate slurry preparation method and its production equipment of single many oar stirring curings of groove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229066A (en) * | 2020-03-23 | 2020-06-05 | 安徽华骐环保科技股份有限公司 | Vertical single-cylinder six-groove full-automatic medicine soaking machine |
| CN114307921A (en) * | 2021-12-15 | 2022-04-12 | 防城港盛农磷化有限公司 | Device and method for controlling slurry fluidity and curing efficiency |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367672A (en) * | 2008-09-26 | 2009-02-18 | 瓮福（集团）有限责任公司 | Manufacturing method of high concentration enrich superphosphate phosphorus fertilizer |
| CN101759444A (en) * | 2008-11-19 | 2010-06-30 | 陶伟平 | Method for improving property of calcium superphosphate |
| CN102153373A (en) * | 2011-04-12 | 2011-08-17 | 郴州市金龙铁合金有限公司 | Process for producing calcium superphosphate |
| CN103406056A (en) * | 2013-05-30 | 2013-11-27 | 防城港盛农磷化有限公司 | Calcium superphosphate size mixing, stirring and curing method and production device thereof |
| CN103553011A (en) * | 2013-10-30 | 2014-02-05 | 南京求是化工工程有限公司 | Production method of granular calcium superphosphate |
-
2015
- 2015-03-31 CN CN201510143856.9A patent/CN104692836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367672A (en) * | 2008-09-26 | 2009-02-18 | 瓮福（集团）有限责任公司 | Manufacturing method of high concentration enrich superphosphate phosphorus fertilizer |
| CN101759444A (en) * | 2008-11-19 | 2010-06-30 | 陶伟平 | Method for improving property of calcium superphosphate |
| CN102153373A (en) * | 2011-04-12 | 2011-08-17 | 郴州市金龙铁合金有限公司 | Process for producing calcium superphosphate |
| CN103406056A (en) * | 2013-05-30 | 2013-11-27 | 防城港盛农磷化有限公司 | Calcium superphosphate size mixing, stirring and curing method and production device thereof |
| CN103553011A (en) * | 2013-10-30 | 2014-02-05 | 南京求是化工工程有限公司 | Production method of granular calcium superphosphate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229066A (en) * | 2020-03-23 | 2020-06-05 | 安徽华骐环保科技股份有限公司 | Vertical single-cylinder six-groove full-automatic medicine soaking machine |
| CN114307921A (en) * | 2021-12-15 | 2022-04-12 | 防城港盛农磷化有限公司 | Device and method for controlling slurry fluidity and curing efficiency |
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| CN104692836B (en) | 2017-09-08 |
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Denomination of invention: Preparation method and production equipment of superphosphate slurry with single tank and multi blade stirring and maturation Granted publication date: 20170908 Pledgee: Bank of Guilin Co.,Ltd. Fangchenggang branch Pledgor: FANGCHENGGANG SHENGNONG PHOSPHATE Co.,Ltd. Registration number: Y2024980008375 |