CN205241243U - Phosphoric acid by wet process extraction reaction's fire fighting equipment - Google Patents
Phosphoric acid by wet process extraction reaction's fire fighting equipment Download PDFInfo
- Publication number
- CN205241243U CN205241243U CN201520978560.4U CN201520978560U CN205241243U CN 205241243 U CN205241243 U CN 205241243U CN 201520978560 U CN201520978560 U CN 201520978560U CN 205241243 U CN205241243 U CN 205241243U
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- China
- Prior art keywords
- reaction
- phosphoric acid
- wet process
- reative cell
- ring nozzle
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Abstract
The utility model discloses a phosphoric acid by wet process extraction reaction's fire fighting equipment, including a tubulose ring nozzle, the ring nozzle is fixed and indoor and surround the setting of refeed line feed opening in the initial response of pu laiangduoge reaction, and the ring nozzle bottom is equipped with a plurality of holes that spray, and every diameter that sprays the hole is at 3mm-5mm, a water pump is in being used for passing through pipe -line transportation to ring nozzle with the fresh water (FW). Adopt through the initial response room at the pu laiangduoge reaction and spray mode physics defoaming, can effectively restrain the interior foam of reaction and produce, almost may not add or add less chemical defoaming agent to can show the reduction in production cost that lands.
Description
Technical field
The utility model relates to phosphoric acid by wet process extractive reaction step, specifically disappearing of a kind of phosphoric acid by wet process extractive reactionBulb apparatus.
Background technology
Extractive reaction is the important step of Wet-process Phosphoric Acid Production, is in extractive reaction groove, to use sulfuric acid decomposing phosphate rock to generatePhosphoric acid. Extractive reaction groove has multiple, and wherein Pu Laiangduo reaction grid groove is a kind of application at present multicell list groove reaction more widelyDevice, as shown in Figure 1, reactive tank 1 shown in Fig. 1 is Pu Laiang tetra-generations four lattice (Huo Si district) reactive tanks to its reaction principle, by identicalFour chamber A, B, C, D composition, be delivered to the first reative cell A of reactive tank 1 by ore slurry pump from the phosphate ore pulp of pulp tank 11,Reaction slurry is stirred from the first reative cell A and is flowed into the 4th reative cell D by second, third reative cell B, C successively by paddle.98% the concentrated sulfuric acid is added to the second reative cell B and the 3rd reative cell of reactive tank 1 after mixing with the rephosphorization acid from filter progressC, a part of slip of the 4th reative cell D, is delivered to filter and is filtered to digestive shelf 12 by chute successively overflow after digestion. ForMaintain suitable reaction temperature, to ensure to obtain two good water thing crystal of calcium sulfate, the part slip of the 4th reative cell D byBe pumped to low level flash chamber 13 and carry out coolingly, the hot gas in low level flash chamber 13 send precondenser cooling, cooled slipBe back to the first reative cell A of reactive tank 1 by refeed line 2.
Owing to containing carbonate and organic matter in phosphorus ore, produce CO with acid generation chemical reaction2Gas, along with acidolysis processFierceness carry out, CO2Continuous separate is dispersed in the reactant liquor that contains organic components, forms froth bed on slip surface, can be to wetMethod is produced and is brought adverse effect. This foam is not eliminated, and can cause chute to overflow, corrosion extraction tank platform, meeting when foam is seriousBrought in a large number tail desorption system, caused P2O5Loss and environmental pollution. In order to eliminate foam adverse effect, Pu Laiangduo reaction gridIn each reative cell of groove, be all provided with foam removal formula paddle and carry out mechanical defoaming, there is certain effect, but still need to addA large amount of chemical defoamers carries out chemical froth breaking, to produce 200000 tons of Pu Laiang, tetra-generations four lattice (Huo Si district) reactive tank kind device per year, 80 tons of these defoamers of SC-108 defoamer that need add for a year belong to polyethers defoamer, are straight-chain hydrocarbons and aromatic series chemical combinationThing product, its Main Ingredients and Appearance is aliphatic polybasic acid alcohol ester. A large amount of consumption of SC-108 defoamer must increase and have been produced intoOriginally the chemical substance, and in SC-108 defoamer inevitably enters in phosphoric acid material pulp to be carried follow-up Phosphoric Acid Concentration and productThe pure difficulty of bringing.
Summary of the invention
The purpose of this utility model is to provide a kind of defoaming device of phosphoric acid by wet process extractive reaction, anti-in phosphoric acid by wet process extractionIn answering, can reduce or not add chemical defoamer, thereby reducing production costs.
Inventor studies discovery: for Pu Laiangduo reaction grid groove, it is anti-that foam more derives from reactive tank firstAnswer chamber, its reason is when to be that flash cooler is cooled return to slip and enter reactive tank the first reative cell by feed opening, returnsSlurry forms and impacts the slip in the first reative cell, causes foam to form in a large number, if can be at the formation of foam initial stage and by itRestrain or vanish, can reduce significantly the indoor formation of foam of subsequent reactions, just can accomplish to reduce or do not add chemical froth breakingAgent, thus reduce production costs.
The utility model is realized based on above-mentioned research just, comprising: a tubulose nozzle ring, described nozzle ring is solidFix in Pu Laiangduo reaction grid groove the first reative cell and around the setting of refeed line feed opening, nozzle ring bottom is provided with multiple spraysDrench hole, the diameter of each spray apertures is at 3mm～5mm; A water pump, is used for fresh water (FW) to be delivered to nozzle ring by pipelineIn. Fresh water (FW) is sprayed into continuously in the nozzle ring in the first reative cell of reactive tank to the spray of fresh water (FW) in spray modePressure is 0.04mPa～0.08mPa, the spray flux of fresh water (FW) be reactive tank add ore pulp amount 4%～6%.
Shower water is constantly ejected in the first reative cell under certain pressure, the foam that floats over slip top layer can be hitBroken, prevent foam growth agglomeration, produce thereby restrain foam. Although spray foam removal need to cause adding in reactive tank part techniqueWater, just can eliminate the newly-increased water yield of spray foam removal and bring not to extractive reaction but only need to return phosphoric acid amount by suitable minimizingProfit impact. Because the foam in the first reative cell mainly forms by returning to slip impact liquid level, foam is mainly at feed openingAround form and gather, fresh water (FW) is sprayed into by the refeed line feed opening surrounding in the first reative cell, foam has just been producedBe crashed to pieces, can reduce fresh water (FW) consumption.
Further, the diameter of spray apertures is at 3.5mm～4.5mm.
The beneficial effects of the utility model are: adopt spray side by the first reative cell at Pu Laiangduo reaction grid grooveFormula physical defoaming, can effectively restrain reactive tank inner foam and produce, and almost can not add or add less chemical defoamer, thus canReduce production costs significantly. In addition, owing to not adding or adding less chemical defoamer, not only can reduce Manual material feeding amount, improveEfficiency, and can not affect follow-up phosphoric acid filtering and concentrating effect, can also reduce the meticulous phosphorus product purification in downstream difficulty,Can improve the quality of downstream phosphorus product.
Brief description of the drawings
Fig. 1 is the extraction process schematic diagram that adopts Pu Laiangduo reaction grid groove.
Fig. 2 is the utility model structure principle chart.
In figure, the implication of label symbol is as follows:
1-reactive tank, 11-pulp tank, 12-digestive shelf, 13-low level flash chamber,
2-refeed line, 3-nozzle ring, 4 and 6-water pipe, 5-water pump,
7-machine water shutoff accumulator tank, 8-return pipe,
A-the first reative cell, B-the second reative cell, C-the 3rd reative cell, D-the 4th reative cell.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Figure 2, the utility model defoaming device comprises a tubulose nozzle ring 3 and a water pump. Described annularNozzle 3 is fixed in the first reative cell A of Pu Laiangduo reaction grid groove 1, and around the feed opening setting of refeed line 2, annular sprayMouth 3 bottoms are provided with multiple spray apertures, and the diameter of each spray apertures is at 3mm～5mm, preferably 3.5mm～4.5mm. Water pump 5 is externalIn reactive tank 1 outside, water pump 5 water inlets have water pipe 6 to communicate with machine water shutoff accumulator tank 7, and water pump 5 delivery ports have water pipe 4 and annularNozzle 3 communicates, and machine water shutoff is flowed in machine water shutoff accumulator tank 7 by return pipe 8.
Its debubbling method is as follows: water pump 5 is sent into the fresh water (FW) of machine water shutoff accumulator tank 7 interior collections to be arranged on by water pipe 4In the nozzle ring 3 arranging in the first reative cell A of Pu Laiangduo reaction grid groove 1 and around the feed opening of refeed line 2, by ringThe spray apertures of shape nozzle 3 bottoms sprays into the below in reative cell continuously in spray mode, and the spray pressure of controlling fresh water (FW) is0.04mPa～0.08mPa, is preferably 0.05mPa～0.06mPa, and the spray flux of controlling fresh water (FW) is that reactive tank adds ore pulp4%～6%, preferably 4.5%～5.5% of amount.
Claims (2)
1. the defoaming device of phosphoric acid by wet process extractive reaction, is characterized in that comprising:
A tubulose nozzle ring (3), described nozzle ring (3) is fixed in Pu Laiangduo reaction grid groove (1) first reative cell AAnd around refeed line (2) feed opening setting, nozzle ring (3) bottom is provided with multiple spray apertures, and the diameter of each spray apertures is at 3mm～5mm；
A water pump (5), is used for fresh water (FW) to be delivered in nozzle ring (3) by pipeline (4).
2. the defoaming device of phosphoric acid by wet process extractive reaction according to claim 1, is characterized in that: the diameter of spray apertures exists3.5mm～4.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520978560.4U CN205241243U (en) | 2015-11-27 | 2015-11-27 | Phosphoric acid by wet process extraction reaction's fire fighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520978560.4U CN205241243U (en) | 2015-11-27 | 2015-11-27 | Phosphoric acid by wet process extraction reaction's fire fighting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205241243U true CN205241243U (en) | 2016-05-18 |
Family
ID=55940322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520978560.4U Withdrawn - After Issue CN205241243U (en) | 2015-11-27 | 2015-11-27 | Phosphoric acid by wet process extraction reaction's fire fighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205241243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329866A (en) * | 2015-11-27 | 2016-02-17 | 安徽六国化工股份有限公司 | Defoaming method and device for wet process phosphoric acid extracting reaction |
| CN108455543A (en) * | 2018-02-07 | 2018-08-28 | 四川绵竹市盘龙矿物质有限责任公司 | A kind of the defoaming charging process and its device of phosphoric acid by wet process extraction reaction |
-
2015
- 2015-11-27 CN CN201520978560.4U patent/CN205241243U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329866A (en) * | 2015-11-27 | 2016-02-17 | 安徽六国化工股份有限公司 | Defoaming method and device for wet process phosphoric acid extracting reaction |
| CN108455543A (en) * | 2018-02-07 | 2018-08-28 | 四川绵竹市盘龙矿物质有限责任公司 | A kind of the defoaming charging process and its device of phosphoric acid by wet process extraction reaction |
| CN108455543B (en) * | 2018-02-07 | 2021-06-04 | 四川绵竹市盘龙矿物质有限责任公司 | Defoaming and feeding method for wet-process phosphoric acid extraction reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160518 Effective date of abandoning: 20180202 |
|
| AV01 | Patent right actively abandoned |