CN203866038U - Phosphoric acid production device system - Google Patents
Phosphoric acid production device system Download PDFInfo
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- CN203866038U CN203866038U CN201420231836.8U CN201420231836U CN203866038U CN 203866038 U CN203866038 U CN 203866038U CN 201420231836 U CN201420231836 U CN 201420231836U CN 203866038 U CN203866038 U CN 203866038U
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- phosphoric acid
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- swirler
- ball mill
- acid production
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Abstract
The utility model relates to a phosphoric acid production device system, which comprises a ball mill, an ore slurry collecting tank, a slurry pump, a swirler, a head tank, an extraction tank, and a crystal culture tank; in the production device system, the ball mill, the ore slurry collecting tank, the slurry pump, the swirler, the head tank, the extraction tank and the crystal culture tank are sequentially communicated with one another; the swirler is further connected with the ball mill. When the phosphoric acid production device operates, ore is fed into the ball mill for ball milling to obtain ore slurry; ore slurry flows into the ore slurry collecting tank and is input into the swirler through the slurry pump; coarse ore slurry is separated out in the swirler and returned to the ball mill for milling again, and the surplus ore slurry continuously flows into the head tank; finally, the ore slurry in the head tank is injected into the extraction tank for extraction reaction, and the obtained phosphoric acid slurry is returned to the crystal culture tank for crystallization, so that pure product phosphoric acid is obtained. The phosphoric acid production device system provided by the utility model has the advantages as follows: the fineness of ore slurry entering the extraction tank is improved obviously, phosphorus loss is reduced greatly, and recycling of phosphorus in the ore is effectively ensured.
Description
Technical field
The utility model relates to a kind of phosphoric acid production device, particularly a kind of sulfuric acid wet process phosphoric acid production apparatus system.
Background technology
Phosphoric acid by wet process is to produce with sulfuric acid decomposing phosphate rock the phosphoric acid obtaining.Degradation production phosphoric acid is liquid phase, and byproduct calcium sulfate is the solid phase that solubleness is very little.Liquid-solid convenient separation has extremely strong superiority, is widely used.Existing Wet-process Phosphoric Acid Production flow process is as follows: Rock Phosphate (72Min BPL) is sent into ball mill and carry out ball milling pulping, ore pulp flows into ore pulp receiving tank, by shurry pump, inputs header tank, then enters extraction tank and carries out extractive reaction, accompanying drawing 1.
Decline along with Rock Phosphate (72Min BPL) grade, the difference of foreign matter content in ore, the hardness of ore increases, easily cause fineness value of touching the mark of ball mill defibrination more difficult, in production process, some cannot be completely compared with thick ore particles and sulfuric acid reaction and being deposited in extraction tank, makes the limited volume of extraction tank along with the time increases and reduces, reduced the speed of reaction of phosphoric acid by wet process, reduced extraction slip crystallization velocity simultaneously, finally caused slip percentage extraction to reduce, the phosphoric rate of recovery reduces.Quality for Rock Phosphate (72Min BPL) changes fluctuation, needs a kind of wet-process phosphoric acid production plant that can adapt to inferior Rock Phosphate (72Min BPL) badly.
Utility model content
Goal of the invention of the present utility model is: in prior art, low-quality Rock Phosphate (72Min BPL) is pulverized and is difficult to the fineness that touches the mark, slag accumulation, and the problem that causes production efficiency to decline, provides a kind of phosphoric acid production apparatus system.This production equipment system can increase the grinding particle size of Rock Phosphate (72Min BPL), improves the efficiency of extraction slip.
To achieve these goals, the technical solution adopted in the utility model is:
A phosphoric acid production apparatus system, comprises ball mill, ore pulp receiving tank, shurry pump, swirler, header tank, extraction tank, growing the grain groove;
In production equipment system, ball mill, ore pulp receiving tank, shurry pump, swirler, header tank, extraction tank, growing the grain groove are communicated with successively; Swirler is also connected with ball mill.
When phosphoric acid production device operates, ore is sent into ball mill and is carried out ball milling pulping, and ore pulp flows into ore pulp receiving tank, by shurry pump, inputs swirler.In swirler, thick slurry is separated, and returns to ball mill again levigate, and remaining slip continues to flow into header tank.Finally, ore pulp in header tank injects extraction tank and carries out extractive reaction, obtains phosphoric acid slurries and turns back to crystallization in growing the grain groove and obtain sterling phosphoric acid.Described thick slurry refers to pulp granularity < 80 object ore pulps.Before header tank, increase swirler, ore pulp thickness is shunted.The thick slurry of swirler bottom is got back to ball mill ball milling again, and thin ore pulp overflows from swirler top, through header tank, enters extraction tank and sulfuric acid carries out extractive reaction.
As preferred version of the present utility model, described ball mill is a plurality of.Ball mill is a plurality of grading ball mills (being that a plurality of ball mills have different mesh-of-grind), can either guarantee the fineness that ball milling reaches, the unnecessary consumption causing while reducing again under same fineness rank repeatedly ball milling.Preferably, described ball mill is four.Described four ball mills are followed successively by: 1# ball mill φ 2.2*7.5m, 10kv, 380kw, dextrorotation.2# ball mill φ 2.2*7.5m, 10kv, 380kw, left-handed.3# ball mill φ 1.83*7m, 380v, 250kw, dextrorotation.4# ball mill φ 1.83*7m, 380v, 250kw, dextrorotation.
The order of connection of four ball mills is: 1# ball mill is connected with 3# ball mill, and 2# ball mill is connected with 4# ball mill; 2# is connected with ore pulp receiving tank with 4# ball mill; Rock Phosphate (72Min BPL) drops into 1# ball mill, carries out 3# ball mill after preliminary levigate further levigate, flows into ore pulp receiving tank; 2# ball mill is injected in swirler returning charge, flows into 4# ball mill further levigate after being ground, and finally flows into ore pulp receiving tank.
As preferred version of the present utility model, described shurry pump is abrasion-proof slurry pump.Preferred DLZJ (L) abrasion-proof slurry pump, abrasion-proof slurry pump wear resisting property is excellent, is applicable to phosphate ore pulp of the present utility model and carries environment.Described DLZJ (L) abrasion-proof slurry pump model: DLZJ (L) 125-100-400A, 80-150m
3/ n, lift 38-45m, 37kw, 4 grades of motors.Possesses the operational throughput of above-mentioned parameter performance and the slag stock pump of lift is equally applicable to situation of the present utility model.
As preferred version of the present utility model, described swirler is autonomous research and design, has cost low, easy to use, screws out the strong feature of thick slag ability.Adopt the above-mentioned swirler can be before extractive reaction, effective separating most big particle ore, the thinner ore pulp obtaining enters extractive reaction, makes the extractive reaction process can be fully efficient.Rough slurry after cyclonic separation returns to ball mill and carries out ball milling 2 times, makes full use of Rock Phosphate (72Min BPL) raw material.
Further, described swirler is centrifugal settling equipment.Described swirler, comprises eddy flow chamber, conically shaped; Eddy flow chamber is round shape, and the opening end thicker with conically shaped is connected; On the sidewall in eddy flow chamber, be provided with opening for feed, preferred feedstock mouth is set to tangentially, is provided with thin ore pulp discharge port at the top in eddy flow chamber; The discharge port that the tiny end of conically shaped is rough slurry.
When two-phase to be separated (or three-phase) mixed solution tangentially enters in swirler with certain pressure from swirler periphery, produce the strong rotational shear turbulent motion of strong Three-Dimensional Elliptic.Owing to existing granularity poor (or density difference) between coarse particles (or heavy phase) and fine particle (or light phase), its centrifugal force being subject to, centripetal buoyancy, fluid drag force etc. vary in size, be subject to centrifugal settling effect, most crude particle (or heavy phase) is discharged through swirler underflow opening, and most of fine particle (or light phase) is discharged by upflow tube, thereby reach the object of separated classification.
As preferred version of the present utility model, described ore pulp receiving tank is a plurality of, and a plurality of ore pulp receiving tanks are set up in parallel (being arranged in parallel) on production line.When turnout need to increase, open a plurality of ore pulp receiving tanks simultaneously and carry out aggregate production, avoid a certain step in production technique to affect whole production rate.When needs are cleared up ore pulp receiving tank, needn't stop production line, only needing to regulate part ore pulp receiving tank is that partition state can be realized desilting.
As preferred version of the present utility model, described extraction tank is a plurality of, and a plurality of extraction tanks are set up in parallel on production line.Open a plurality of extraction tanks, throughput increases simultaneously; Closed portion extraction tank, realizing does not stop production establishes clean-up and rectification.
As preferred version of the present utility model, growing the grain groove is a plurality of, and a plurality of growing the grain grooves are set up in parallel on production line.Open a plurality of extraction tanks, throughput increases simultaneously; Closed portion extraction tank, realizes the equipment cleaning that do not stop production and rectifies.Above-mentioned growing the grain groove comprises a plurality of, and the setting of can also connecting, realizes fractional crystallization, obtains successively quality phosphoric acid crystallization from high to low, is applied to different industrial application environment.
As preferred version of the present utility model, between swirler and header tank, be provided with gate.When production process, find ore pulp quality and decline, when being difficult to meet crystallization needs, regulate this gate can change the flow direction of ore pulp, increase the ratio (returning charge ratio) that ore pulp returns to ball mill, strengthen ball milling rate, prevent that the impurity slurry sinking to the bottom in growing the grain groove is too much, improve the percent crystallization in massecuite of phosphoric acid by wet process.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, adopt phosphoric acid production device of the present utility model, the slurry fineness that enters extraction tank is significantly improved, slurry fineness has brought up to 90% by 100 order > 80%, percentage extraction has improved 0.3%-0.5% left and right on existing basis, has effectively guaranteed the recovery of phosphorus content in ore.
2, adopt phosphoric acid production device of the present utility model, in the situation of our company, come, year accumulative total is saved ore and can be reached 8000 tons of left and right, has reduced the loss of phosphorus, produces every year approximately 3,000,000 yuan of economic interest rates.
Accompanying drawing explanation
Fig. 1 is prior art phosphoric acid production apparatus system schematic diagram.
Fig. 2 is the ore pulp splitting system schematic diagram of phosphoric acid production device of the present utility model.
Fig. 3 is the structural representation of swirler in the utility model.
Mark in figure: 101-ball mill, 102-ore pulp receiving tank, 103-header tank, 104-extraction tank, 105-growing the grain groove, 106-swirler, 2-shurry pump, 301-eddy flow chamber, 302-conically shaped, 303-swirler opening for feed, the rough slurry discharge port of 304-, 305-ore pulp discharge port.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with accompanying drawing 2, the utility model is done to detailed operation explanation, its structure setting is also illustrated together, specific as follows: Rock Phosphate (72Min BPL) to be sent into ball mill 101 and carry out after ball milling pulping, enter ore pulp receiving tank 102, by shurry pump 2, be directly inputted to swirler 106, ore pulp thickness is shunted.Ore pulp enters swirler from swirler opening for feed 303, carries out separation, and thin ore pulp is discharged from the discharge port 305 at top, top, and the rough slurry discharge port 304 of the rough bottom from swirler is discharged.The thick slurry of swirler bottom is got back to ball mill ball milling again, and thin ore pulp overflows and enters header tank 103 from swirler top, and the ore pulp flowing out from header tank flows into extraction tank 104 and carries out extractive reaction with sulfuric acid.After reacting completely, phosphoric acid enters 105 crystallizations of growing the grain groove and obtains sterling phosphoric acid.
In conjunction with Fig. 2, the swirler in the utility model is described, described swirler comprises eddy flow chamber 301, conically shaped 302; Eddy flow chamber is round shape 301, and the opening end thicker with conically shaped is connected; On the sidewall in eddy flow chamber, be provided with opening for feed 303, preferred feedstock mouth is set to tangentially, is provided with thin ore pulp discharge port 305 at the top in eddy flow chamber; The discharge port 304 that the tiny end of conically shaped is rough slurry.
Further, ore pulp receiving tank, header tank, extraction tank and growing the grain groove have two, adopt mode in parallel to be connected on production line.When turnout is large, open each path simultaneously, realize the effect that increases turnout; Producing dull season, close one of device in parallel, make it independently carry out desilting processing, annual realization is not stopped and is produced continuously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a phosphoric acid production apparatus system, is characterized in that, comprises ball mill, ore pulp receiving tank, shurry pump, swirler, header tank, extraction tank, growing the grain groove;
In production equipment system, ball mill, ore pulp receiving tank, shurry pump, swirler, header tank, extraction tank, growing the grain groove are communicated with successively; Swirler is also connected with ball mill.
2. phosphoric acid production apparatus system according to claim 1, is characterized in that, described ball mill is a plurality of.
3. phosphoric acid production apparatus system according to claim 2, is characterized in that, a plurality of ball mill classifications arrange.
4. phosphoric acid production apparatus system according to claim 2, is characterized in that, described ball mill is four.
5. phosphoric acid production apparatus system according to claim 1, is characterized in that, described shurry pump is abrasion-proof slurry pump.
6. phosphoric acid production apparatus system according to claim 1, is characterized in that, described swirler is centrifugal settling equipment; Described swirler, comprises eddy flow chamber, conically shaped; Eddy flow chamber is round shape, and the opening end thicker with conically shaped is connected; On the sidewall in eddy flow chamber, be provided with opening for feed, at the top in eddy flow chamber, be provided with thin ore pulp discharge port; The discharge port that the tiny end of conically shaped is rough slurry.
7. phosphoric acid production apparatus system according to claim 1, is characterized in that, described ore pulp receiving tank is a plurality of, is connected on production line side by side.
8. phosphoric acid production apparatus system according to claim 1, is characterized in that, described extraction tank is a plurality of, is connected on production line side by side.
9. phosphoric acid production apparatus system according to claim 1, is characterized in that, described growing the grain groove is a plurality of, is connected on production line side by side.
10. phosphoric acid production apparatus system according to claim 1, is characterized in that, between swirler and header tank, is provided with gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231836.8U CN203866038U (en) | 2014-05-07 | 2014-05-07 | Phosphoric acid production device system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231836.8U CN203866038U (en) | 2014-05-07 | 2014-05-07 | Phosphoric acid production device system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203866038U true CN203866038U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420231836.8U Expired - Fee Related CN203866038U (en) | 2014-05-07 | 2014-05-07 | Phosphoric acid production device system |
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| CN (1) | CN203866038U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311453A (en) * | 2016-08-30 | 2017-01-11 | 襄阳泽东化工集团有限公司 | Device for closed cycle phosphorite wet ball grinding and ball grinding method |
| CN106882776A (en) * | 2017-04-11 | 2017-06-23 | 胡士清 | wet-process phosphoric acid production system and wet-process phosphoric acid production method |
| CN110790351A (en) * | 2019-12-10 | 2020-02-14 | 华电水务工程有限公司 | Calcium sulfate crystallization system for high-salinity wastewater and method for treating high-salinity wastewater |
-
2014
- 2014-05-07 CN CN201420231836.8U patent/CN203866038U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311453A (en) * | 2016-08-30 | 2017-01-11 | 襄阳泽东化工集团有限公司 | Device for closed cycle phosphorite wet ball grinding and ball grinding method |
| CN106882776A (en) * | 2017-04-11 | 2017-06-23 | 胡士清 | wet-process phosphoric acid production system and wet-process phosphoric acid production method |
| CN110790351A (en) * | 2019-12-10 | 2020-02-14 | 华电水务工程有限公司 | Calcium sulfate crystallization system for high-salinity wastewater and method for treating high-salinity wastewater |
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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: 20141008 Termination date: 20170507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |