CN207243495U - The device of poly-ferric chloride is prepared using steel finishing pickle liquor - Google Patents
The device of poly-ferric chloride is prepared using steel finishing pickle liquor Download PDFInfo
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- CN207243495U CN207243495U CN201721116042.7U CN201721116042U CN207243495U CN 207243495 U CN207243495 U CN 207243495U CN 201721116042 U CN201721116042 U CN 201721116042U CN 207243495 U CN207243495 U CN 207243495U
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Abstract
The utility model provides a kind of device that poly-ferric chloride is prepared using steel finishing pickle liquor, it includes oxygen storage tank, raw material blending tank, reaction kettle, reaction tower and polymeric kettle；The oxygen storage tank is connected with the inside of the reaction kettle and the inside of the reaction tower respectively；The discharge port of the raw material blending tank is connected with the feed inlet of the reaction kettle, the discharge port of the reaction kettle is connected with the feed inlet of the reaction tower, and the discharge port of the reaction tower is connected with the feed inlet of the reaction kettle and the feed inlet of the polymeric kettle respectively.The apparatus structure is simple, design is reasonable, and catalyst amount is effectively reduced by the liquid material circulation between reaction kettle and reaction tower.
Description
Technical field
The utility model belongs to devil liquor recovery field, and in particular, to one kind is prepared using steel finishing pickle liquor
The device of poly-ferric chloride.
Background technology
In steel finishes production of articles, generally use hydrochloric acid continuous acid-washing steel surface derusts, and generation largely contains
There is the acid-washing waste acid of frerrous chloride and hydrochloric acid.Used pickle liquor processing method mainly has distillation and concentration both at home and abroad at present
Method, roasting-absorption process, solvent extraction and oxidizing process.Wherein, distillation and concentration method recycling hydrochloric acid and frerrous chloride, not from root
The problem of solving spent acid on this, be only a physically separate, can not be handled there are product accumulation in；Roasting-absorption process and solvent
Extraction is hydrochloric acid and ferrous material (such as Fe in waste acid recovery liquid2O3Powder etc.), oxidation rule is directly to produce nothing using waste liquid
Machine chemical flocculating agent polyferric chloride, but due to being mainly used as oxygen using chlorine, oxygen and sodium chlorate in the method at present production
The problems such as agent, chlorine and oxygen are unstable there are reaction pressure, and dosage is bigger than normal, sodium chlorate is expensive to be also not suitable for industrial answer
With, and the problems such as this method is also big there are equipment investment, and production technology is more complicated, and environmental pollution is more serious, cause this acid
The comprehensive utilization for washing waste liquid is subject to a definite limitation.
Therefore, a kind of recycle device of new steel finishing pickle liquor is studied to have important practical significance.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to be given up so as to provide one kind using steel finishing pickling
Liquid prepares the device of poly-ferric chloride.
To achieve these goals, technical solution is used by the utility model：
A kind of device that poly-ferric chloride is prepared using steel finishing pickle liquor, it includes oxygen storage tank, raw material mixes
Close tank, reaction kettle, reaction tower and polymeric kettle；The oxygen storage tank respectively with the inside and the reaction tower of the reaction kettle
Portion is connected；The discharge port of the raw material blending tank is connected with the feed inlet of the reaction kettle, the discharge port of the reaction kettle
Be connected with the feed inlet of the reaction tower, the discharge port of the reaction tower respectively with the feed inlet of the reaction kettle and described poly-
The feed inlet for closing kettle is connected.
Based on above-mentioned, the oxygen storage tank connects the reaction kettle by reaction kettle gas-guide tube, and the oxygen storage tank passes through
Reaction tower gas-guide tube connects the reaction tower；The reaction kettle gas-guide tube and the reaction tower gas-guide tube are respectively protruding into the reaction
The bottom of kettle and the bottom of the reaction tower.
Based on above-mentioned, the top of the reaction tower is equipped with spray thrower, and the spray thrower is connected with the inner cavity of the reaction kettle
It is logical.
Based on above-mentioned, the discharge port of the reaction tower is connected with a liquid material circulating pump, the flow export of the liquid material circulating pump
It is connected respectively with the front end of a return duct and the feed inlet of the polymeric kettle, the end of the return duct and the reaction kettle
Feed inlet is connected.
Based on above-mentioned, which further includes still preheater, institute
The discharge port for stating raw material blending tank is connected with the feed inlet of the still preheater, the discharge port of the still preheater and the reaction kettle
Feed inlet be connected, liquid material delivery pump is equipped between the feed inlet of the discharge port of the still preheater and the reaction kettle；It is described
The top overflow port of reaction kettle is connected with the top overflow port of the reaction tower, and two overflow ports go out with the still preheater
Material mouth is connected.
Based on above-mentioned, the outer wall of the still preheater, the reaction kettle and the polymeric kettle is equipped with heating mantle, the heating
Put on and be equipped with heating medium inlet and Crude product input, the heating mantle of the still preheater, the reaction kettle and the polymeric kettle
It is interconnected.
The side of poly-ferric chloride is prepared using the above-mentioned device that poly-ferric chloride is prepared using steel finishing pickle liquor
Method, comprises the following steps：
The blow valve that air opens the reaction kettle and the reaction tower is discharged, steel is finished into pickle liquor, sulfuric acid
Ferrous iron solution and liquor alumini chloridi are placed in the raw material blending tank and are uniformly mixed, then are delivered to the reaction kettle and the reaction
In tower, until being full of liquid material in the reaction kettle and the reaction tower, the air in the reaction kettle and the reaction tower is arranged
Go out, stop feedstock transportation；
Form oxygen atmosphere and close the blow valve, open the top overflow port of the reaction kettle and the reaction tower, to
Oxygen is passed through in the reaction kettle and the reaction tower, oxygen is assembled on the top of the reaction kettle and the reaction tower, institute
The liquid material in reaction kettle and the reaction tower is stated by the top overflow port overflow into the still preheater, until the preheating
Liquid material starts bubbling in kettle, closes the top overflow port of the reaction kettle and the reaction tower, keeps the reaction kettle and described
The internal pressure of reaction tower is stablized, and the raw material blending tank starts to convey liquid material into the still preheater；
The reaction kettle and the still preheater are heated to 55~65 DEG C by liquid material circulation, open the reaction tower bottom
Liquid material circulating pump, the return duct and reaction tower top spray thrower of liquid material circulating pump connection, close the liquid material circulation
The connection of pump and the polymeric kettle, forms liquid material circulation between the reaction kettle and the reaction tower；In liquid material cyclic process,
Catalyst and stabilizer are added at the top of the reaction tower, is aoxidized the ferrous ion in liquid material, is then shut off described
Return duct, opens the connection of the liquid material circulating pump and the polymeric kettle, make the liquid material after oxidation from it is described reaction tower bottom into
Enter and kept the temperature in the polymeric kettle, is polymerize, obtain flocculant poly iron chloride；
Liquid material in preheater described in repetitive cycling is delivered to the reaction kettle by liquid material delivery pump, repeats the liquid
The step of material circulation.
Based on above-mentioned, ferrous ion and hydrionic molar ratio are 1 in the raw material blending tank:（0.7~1）.
Based on above-mentioned, the catalyst is nitrate or nitrite, and the dosage of the catalyst is the steel finishing
The 0.1%~0.2% of work pickle liquor.
Based on above-mentioned, the stabilizer is phosphoric acid, phosphate or dihydric phosphate, and the dosage of the stabilizer is the steel
The 0.5%~1.5% of iron finishing pickle liquor.
Compared with prior art, the utility model has prominent substantive distinguishing features and marked improvement.Specifically, this reality
The device of poly-ferric chloride is prepared using steel finishing pickle liquor with new offer is a kind of, it includes raw material blending tank, pre-
Hot kettle, reaction kettle, reaction tower and polymeric kettle, raw material in the raw material blending tank be uniformly mixed, then in the still preheater into
Row preheating, subsequently into the reaction kettle, makes liquid material in the reaction kettle and described anti-by spray thrower and liquid material circulating pump
Answer and constantly circulate between tower, until the ferrous ion in liquid material is aoxidized, the liquid material after oxidation is carried out into the polymeric kettle
Polymerization, obtains flocculant poly iron chloride；Meanwhile nitrite or nitrate is added in oxidizing process as catalyst, this is urged
Agent has strong oxidizing property in sour environment, ferrous ion is oxidized to form ferric ion, and oxidizing process exists
Carried out in enclosed system, oxidizing process forms NOxNitric acid can be formed with water and oxygen reaction to continue to continue ferrous ion
Aoxidized, which is greatly reduced the dosage of catalyst, reduce steel finishing pickle liquor recycle into
This；Meanwhile remaining NO after oxidizing processxNitrite or nitrate can be re-formed by lye absorption and be used as catalyst
Recycle；In addition, the outer wall of the still preheater, the reaction kettle and the polymeric kettle is equipped with heating mantle, the heating mantle
It is equipped with Crude product input and Crude product input, the heating mantle phase of the still preheater, the reaction kettle and the polymeric kettle
Intercommunicated, heat medium can flow between the heating mantle of the still preheater, the reaction kettle and the polymeric kettle, so may be used
To make full use of the thermal energy of heat medium, energy loss is reduced.
Brief description of the drawings
Fig. 1 is that the structure for the device for preparing poly-ferric chloride using steel finishing pickle liquor in the utility model is shown
It is intended to.
Fig. 2 is the structural representation for the device for preparing poly-ferric chloride in embodiment 2 using steel finishing pickle liquor
Figure.
In figure：1. raw material blending tank；2. still preheater；3. reaction kettle；4. reaction tower；5. polymeric kettle；6. liquid material delivery pump；7.
Liquid material circulating pump；8. spray thrower；9. device for absorbing tail gas；10. heat medium delivery pump；11. reaction kettle gas-guide tube；12. reaction
Tower gas-guide tube.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the device of poly-ferric chloride is prepared using steel finishing pickle liquor the present embodiment provides a kind of,
It includes oxygen storage tank, raw material blending tank 1, still preheater 2, reaction kettle 3, reaction tower 4 and polymeric kettle 5；The oxygen storage tank difference
It is connected with the inside of the reaction kettle 3 and the inside of the reaction tower 4；The discharge port of the raw material blending tank 1 respectively with institute
The feed inlet for stating still preheater 2 is connected with the feed inlet of the reaction kettle 3, so that the raw material blending tank 1 is to the still preheater 2
It is fed with the reaction kettle 3, the discharge port of the still preheater 2 is connected with the feed inlet of the reaction kettle 3, so as to material
Enter the reaction kettle 3 after being preheated in the still preheater 2, the discharge port of the reaction kettle 3 is connected with the feed inlet of reaction tower 4
It is logical, so that the reaction kettle 3 is fed reaction tower 4, the discharge port of the reaction tower 4 respectively with the reaction kettle 3 into
Material mouth is connected with the feed inlet of the polymeric kettle 5, so that reaction tower 4 described in reaction process and the reaction kettle 3 carry out thing
Material circulation, the material after the completion of reaction in the reaction tower 4 enter in the polymeric kettle 5, the top overflow port of the reaction kettle 3
It is connected with the top overflow port of the reaction tower 4, and discharge port of two overflow ports with the still preheater 2 is connected, so as to
The reaction kettle 3 and 4 material of the reaction tower can be flowed into the still preheater 2 by the overflow port.
Further, the inlet port and outlet port of the reaction tower 4 are the same liquid material positioned at 4 bottom of reaction tower
Inlet and outlet are, it is necessary to explanation, and in other examples, the inlet port and outlet port of the reaction tower 4 can not be same
It is a.
Further, liquid material delivery pump 6 is equipped between the discharge port of the still preheater 2 and the feed inlet of the reaction kettle 3.
Further, the discharge port of the reaction tower 4 is connected with a liquid material circulating pump 7, the outflow of the liquid material circulating pump 7
Mouth is connected with the front end of a return duct and the feed inlet of the polymeric kettle 5 respectively, the end of the return duct and the reaction
The feed inlet of kettle 3 is connected.
Further, the top of the reaction tower 4 is equipped with spray thrower 8, the inner cavity of the spray thrower 8 and the reaction kettle 3
It is connected, so that the material in the reaction kettle 3 is entered in the reaction tower 4 by the spray thrower 8.
Further, the oxygen storage tank connects the reaction kettle 3 by reaction kettle gas-guide tube 11, and the oxygen storage tank leads to
Cross reaction tower gas-guide tube 12 and connect the reaction tower 4；The reaction kettle gas-guide tube 11 and the reaction tower gas-guide tube 12 are stretched respectively
Enter the bottom of the reaction kettle 3 and the bottom of the reaction tower 4.
Further, the top of the reaction tower 4 is connected with device for absorbing tail gas 9, contains in the device for absorbing tail gas
Lye, can be to NOxAbsorbed.
Further, each several part is connected by pipeline in the device, and valve is provided with each pipeline, to control flow direction.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：As shown in Fig. 2, the still preheater 2, the reaction kettle 3 and institute
The outer wall for stating polymeric kettle 5 is equipped with heating mantle, and the heating mantle is equipped with heating medium inlet and Crude product input, described pre-
The heating mantle of hot kettle 2, the reaction kettle 3 and the polymeric kettle 5 is interconnected, so that the heat medium in each heating mantle can
Mutually circulation, is specifically equipped between the heating mantle of the reaction kettle 3 and the polymeric kettle 5 and the heating mantle of the polymeric kettle 5
Heat medium delivery pump 10 is in other examples, more convenient for the conveying of heat medium, it is necessary to explanation, adds
The number of thermal medium delivery pump and position can be set according to delivery requirements.
Polymerization is prepared using the device provided in this embodiment that poly-ferric chloride is prepared using steel finishing pickle liquor
The method of iron chloride, it comprises the following steps：
Discharge the blow valve that air opens the reaction kettle 3 and the reaction tower 4, by steel finishing pickle liquor and
Solution of ferrous chloride is placed in the raw material blending tank 1 and is uniformly mixed, then is delivered in the reaction kettle 3 and the reaction tower 4,
Until being full of liquid material in the reaction kettle and the reaction tower, the air in the reaction kettle 3 and the reaction tower 4 is discharged,
Stop feedstock transportation；Wherein, ferrous ion and hydrionic molar ratio are 1 in the raw material blending tank 1:0.8；
Form oxygen atmosphere and close the blow valve, open the top overflow port of the reaction kettle 3 and the reaction tower 4,
The top overflow port is connected with the still preheater 2, open the oxygen storage tank, to the reaction kettle 3 and the reaction
Oxygen is passed through in tower 4, oxygen is assembled on the top of the reaction kettle 3 and the reaction tower 4, until the reaction kettle 3 and institute
The liquid material in reaction tower 4 is stated by the top overflow port overflow into the still preheater 2, and liquid material is opened in the still preheater 2
Beginning bubbling, closes the top overflow port of the reaction kettle 3 and the reaction tower 4, and the raw material blending tank 1 starts to the preheating
Liquid material is conveyed in kettle 2；
The reaction kettle 3 and the still preheater 2 are heated to 55~65 DEG C by liquid material circulation, open 4 bottom of reaction tower
Liquid material circulating pump, the liquid material circulating pump 7 connection 4 top spray thrower 8 of return duct and the reaction tower, close the liquid material
The connection of circulating pump 7 and the polymeric kettle 5, forms liquid material circulation between the reaction kettle 3 and the reaction tower 4；Liquid material is followed
During ring, catalyst and stabilizer are added at the top of the reaction tower 4, is aoxidized the ferrous ion in liquid material, so
After close the return duct, open the connection of the liquid material circulating pump 7 and the polymeric kettle 5, make the liquid material after oxidation from described in
The bottom of reaction tower 4, which enters in the polymeric kettle 5, to be kept the temperature, and is polymerize, obtains flocculant poly iron chloride；Wherein, it is described to urge
Agent is sodium nitrite, and the dosage of the catalyst finishes the 0.1% of pickle liquor for the steel, and the stabilizer is phosphorus
Acid, the dosage of the stabilizer finish the 1% of pickle liquor for the steel；
Liquid material in preheater 2 described in repetitive cycling is delivered to the reaction kettle 3 by liquid material delivery pump 6, repeat described in
The step of liquid material circulates.
It should be noted that in other examples, it can be adjusted by adding frerrous chloride in the raw material blending tank
Ferrous ion and hydrionic molar ratio are 1:（0.7~1）；The catalyst can select nitrite or nitric acid as needed
Salt, such as potassium nitrite, sodium nitrate, potassium nitrate, the dosage of the catalyst finish the 0.1% of pickle liquor for the steel
~0.2%；The stabilizer can select phosphoric acid, phosphate or dihydric phosphate, the phosphate or dihydric phosphate as needed
Potassium phosphate, sodium phosphate, potassium dihydrogen phosphate or sodium dihydrogen phosphate may be selected, the dosage of the stabilizer is steel finishing acid
Wash the 0.5%~1.5% of waste liquid.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it should all cover in the claimed technical solution of the utility model
Among scope.
Claims (6)
1. a kind of device that poly-ferric chloride is prepared using steel finishing pickle liquor, it is characterised in that it is stored up including oxygen
Tank, raw material blending tank, reaction kettle, still preheater, reaction tower and polymeric kettle；The oxygen storage tank inside with the reaction kettle respectively
It is connected with the inside of the reaction tower；The discharge port of the raw material blending tank is connected with the feed inlet of the reaction kettle, institute
The discharge port for stating reaction kettle is connected with the feed inlet of the reaction tower, the discharge port of the reaction tower respectively with the reaction kettle
Feed inlet be connected with the feed inlet of the polymeric kettle, the discharge port of the raw material blending tank and the feed inlet of the still preheater
It is connected, the discharge port of the still preheater is connected with the feed inlet of the reaction kettle.
2. the device according to claim 1 that poly-ferric chloride is prepared using steel finishing pickle liquor, its feature are existed
In the oxygen storage tank connects the reaction kettle by reaction kettle gas-guide tube, and the oxygen storage tank is connected by reaction tower gas-guide tube
Lead to the reaction tower；The reaction kettle gas-guide tube and the reaction tower gas-guide tube are respectively protruding into the bottom of the reaction kettle and described
The bottom of reaction tower.
3. the device according to claim 1 or 2 that poly-ferric chloride is prepared using steel finishing pickle liquor, its feature
It is, the top of the reaction tower is equipped with spray thrower, and the spray thrower is connected with the inner cavity of the reaction kettle.
4. the device according to claim 3 that poly-ferric chloride is prepared using steel finishing pickle liquor, its feature are existed
Be connected with a liquid material circulating pump in the discharge port of, the reaction tower, the flow export of the liquid material circulating pump respectively with a return duct
Front end be connected with the feed inlet of the polymeric kettle, the end of the return duct is connected with the feed inlet of the reaction kettle.
5. the device according to claim 1 that poly-ferric chloride is prepared using steel finishing pickle liquor, its feature are existed
In being equipped with liquid material delivery pump between the feed inlet of the discharge port of the still preheater and the reaction kettle；The top of the reaction kettle
Overflow port is connected with the top overflow port of the reaction tower, and discharge port of two overflow ports with the still preheater is connected.
6. the device according to claim 5 that poly-ferric chloride is prepared using steel finishing pickle liquor, its feature are existed
In the outer wall of the still preheater, the reaction kettle and the polymeric kettle is equipped with heating mantle, and the heating mantle is equipped with heating and is situated between
Matter entrance and Crude product input, the heating mantle of the still preheater, the reaction kettle and the polymeric kettle are interconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721116042.7U CN207243495U (en) | 2017-09-01 | 2017-09-01 | The device of poly-ferric chloride is prepared using steel finishing pickle liquor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721116042.7U CN207243495U (en) | 2017-09-01 | 2017-09-01 | The device of poly-ferric chloride is prepared using steel finishing pickle liquor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601577A (en) * | 2017-09-01 | 2018-01-19 | 河北正润环境科技有限公司 | The device and method of poly-ferric chloride is prepared using steel finishing pickle liquor |
| CN110756144A (en) * | 2019-10-31 | 2020-02-07 | 唐山达润达危废处理有限公司 | Production device and method of ferric trichloride |
-
2017
- 2017-09-01 CN CN201721116042.7U patent/CN207243495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601577A (en) * | 2017-09-01 | 2018-01-19 | 河北正润环境科技有限公司 | The device and method of poly-ferric chloride is prepared using steel finishing pickle liquor |
| CN107601577B (en) * | 2017-09-01 | 2023-08-11 | 河北正润环境科技有限公司 | Device and method for preparing polymeric ferric chloride by utilizing steel finishing pickling waste liquid |
| CN110756144A (en) * | 2019-10-31 | 2020-02-07 | 唐山达润达危废处理有限公司 | Production device and method of ferric trichloride |
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Assignee: Hebei xinchangrong Environmental Protection Technology Co.,Ltd. Assignor: HEBEI ZHENGRUN ENVIRONMENTAL TECHNOLOGY CO.,LTD. Contract record no.: X2022980006243 Denomination of utility model: Device for preparing polyferric chloride from pickling waste liquor of steel finishing Granted publication date: 20180417 License type: Common License Record date: 20220527 |