CN209602138U - A kind of distillation processing unit of high-fluorine chlorine waste acid sewage - Google Patents
A kind of distillation processing unit of high-fluorine chlorine waste acid sewage Download PDFInfo
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- CN209602138U CN209602138U CN201920152024.7U CN201920152024U CN209602138U CN 209602138 U CN209602138 U CN 209602138U CN 201920152024 U CN201920152024 U CN 201920152024U CN 209602138 U CN209602138 U CN 209602138U
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- acid
- distillation
- waste acid
- distillation still
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Abstract
The utility model relates to a kind of distillation processing units of high-fluorine chlorine waste acid sewage, belong to and smelt waste acid process field, the utility model includes waste acid sewage storage tank, the distillation still of enamel material, steam pipe, slag acid pond, condenser, condensate water circulatory pond, condensate water circulatory pump, dilute sulfuric acid storage tank, gas-liquid separator, frequency conversion vacuum pump, tail gas absorber, tail gas absorption circulating pump.Acid inlet tube is equipped with into sour regulating valve, and distillation still is interior to be equipped with temperature display controller, pH on-line detector, pressure gauge and tank gage；The utility model realizes the partially recycled separation using with heavy metal of waste acid for the characteristic for smelting waste acid, while by the chain setting of capital equipment and instrument, realizing the automatic processing of waste acid, easy to operate, waste acid high treating effect.
Description
Technical field
The utility model belongs to smelting waste acid process field and is specifically related to a kind of distillation of high-fluorine chlorine waste acid sewage
Processing unit.
Background technique
Current numerous domestic smeltery is using rotary kiln or fuming furnace to leached mud, melting waste slag and other utilising zinc containing waste residues
It is handled, a large amount of high-temperature flue gas that production process can generate, flue gas uses zinc oxide wet desulphurization work after being first dusted again
Skill removes the sulfur dioxide in flue gas, and since fluorine, chlorinity are high, flue gas generates high-fluorine chlorine waste acid after carrying out washing treatment.
High-fluorine chlorine waste acid ingredient is extremely complex, and the waste acid component difference of different firms outputs is very big, due to fluorine, chlorine in waste acid
The influence of impurity, the waste acid generated than conventional flue gas acid preparing system are more difficult to handle.It is fluorine, chlorine in high-fluorine chlorine waste acid, insoluble
Flue dust is higher than common waste acid content, while also containing the beavy metal impurities such as lead, zinc, iron, copper, traditional waste acid processing method without
Method is effectively treated high-fluorine chlorine waste acid.
Summary of the invention
In order to solve the problems, such as background technique, the utility model provides a kind of distillation of high-fluorine chlorine waste acid sewage
Processing unit, can effectively realize the partially recycled utilization of high-fluorine chlorine waste acid, while separate beavy metal impurity in waste acid.
To achieve the above object, the utility model is achieved by the following technical solution:
The flue gas during smelting waste acid processing unit include waste acid sewage storage tank 1, distillation still 2, slag acid pond 3, condenser 4,
Condensate water circulatory pond 5, condensate water circulatory pump 6, dilute sulfuric acid storage tank 7, gas-liquid separator 8, frequency conversion vacuum pump 9, tail gas absorber 10,
Tail gas absorption circulating pump 11；The tank bottom of waste acid sewage storage tank has acid inlet tube to be connected to distillation still 2；It is aobvious equipped with temperature in distillation still 2
Show controller 13,2 bottom of distillation still is equipped with slag acid tube and is connected to slag acid pond 3；Exhaust pipe and condenser 4 are equipped at the top of distillation still 2
Connection, condenser 4 is interior to be equipped with vacuum checking device 19, and the bottom of condenser 4 is equipped with dilute sulfuric acid pipe and is connected to dilute sulfuric acid storage tank 7；
The top of condenser 4 and dilute sulfuric acid storage tank 7 is equipped with exhaust pipe and is connected to gas-liquid separator 8, and frequency conversion vacuum pump 9 is connected by pipeline
Between gas-liquid separator 8 and tail gas absorber 10；10 bottom of tail gas absorber be equipped with pipeline and tail gas absorption circulating pump 11 into
Mouth connection, the outlet of tail gas absorption circulating pump 11 are connected to the top of tail gas absorber 10.
Preferably, distillation still 2 is heated using steam, heating steam pipe is equipped with steam flow control valve 18；Distillation still 2
Interior temperature display controller 13 is electrically connected with steam flow control valve 18, temperature display controller 13 and steam flow control valve 18
When normal work, the temperature of liquid is 50 DEG C -90 DEG C in distillation still.
Preferably, being equipped with pH on-line detector 14 in the distillation still, slag acid tube is equipped with acid discharge regulating valve 16；PH exists
Line detector 14 and acid discharge regulating valve 16 are chain, and as 5≤pH value < 6,16 aperture of acid discharge regulating valve is 10%, when pH value >=6
When, 16 standard-sized sheet of acid discharge regulating valve；As pH value < 5, acid discharge regulating valve 16 is closed entirely.
Preferably, the vacuum checking device 19 and frequency conversion vacuum pump 9 is chain, and when frequency conversion vacuum pump 9 works, condensation
Vacuum cavitations are between -0.02MPa~-0.04MPa in device 4.
Preferably, acid inlet tube is equipped with into sour regulating valve 12, it is additionally provided with liquid level display controller 15 in distillation still, into acid
Regulating valve 12 and liquid level display controller 15 are chain, when distillation still liquid level >=70%, close into sour regulating valve 12；Work as distillation still
When liquid level≤50%, opened into sour regulating valve 12.
Preferably, being additionally provided with pressure gauge 17 in the distillation still 2.
Preferably, 2 material of distillation still is enamel.
It is connected in dilute sulfuric acid storage tank 7 preferably, 8 bottom of gas-liquid separator is equipped with drain pipe.
Preferably, the distillation still 2 is heated using Electric heating, when normal work, the temperature of distillate is 50 DEG C-
90℃。
The utility model has the beneficial effects that
The utility model is used in combination by distillation still, condenser etc., realizes the processing of high-fluorine chlorine waste acid sewage, and logical
The processing of the present apparatus is crossed, high-fluorine chlorine waste acid sewage needs treating capacity to be effectively reduced, while realizing the recycling of part waste acid
With the separation of heavy metal, the heavy metal after separation is concentrated in slag acid tank, convenient for centralized processing；The utility model is dirty for smelting
The characteristic of acid realizes the automatic processing of waste acid sewage, while waste acid sewage by the chain setting of capital equipment and instrument
Treatment effect is preferable, and equipment is simple, easy to operate.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram of the utility model；
In figure, 1- waste acid sewage storage tank, 2- distillation still, 3- slag acid pond, 4- condenser, 5- condensate water circulatory pond, 6- condensation
Water-circulating pump, 7- dilute sulfuric acid storage tank, 8- gas-liquid separator, 9- frequency conversion vacuum pump, 10- tail gas absorber, 11- tail gas absorption circulation
Pump, 12- are into sour regulating valve, 13- temperature display controller, 14- pH on-line detector, 15- liquid level display controller, 16- acid discharge
Regulating valve, 17- pressure gauge, 18- steam flow control valve, 19- vacuum checking device.
Specific embodiment
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, below in conjunction with attached drawing, to this
The preferred embodiment of utility model is described in detail, to facilitate the technical staff to understand.
As shown in Figure 1, the high-fluorine chlorine waste acid sewage-treatment plant includes the steaming of waste acid sewage storage tank 1, enamel material
Evaporate kettle 2, steam pipe, slag acid pond 3, condenser 4, condensate water circulatory pond 5, condensate water circulatory pump 6, dilute sulfuric acid storage tank 7, gas-liquid separation
Device 8, frequency conversion vacuum pump 9, tail gas absorber 10, tail gas absorption circulating pump 11.The tank bottom of waste acid sewage storage tank 1 has acid inlet tube and steams
The connection of kettle 2 is evaporated, acid inlet tube is equipped with into sour regulating valve 12.Temperature display controller 13, pH on-line detector are equipped in distillation still 2
14, liquid level display controller 15 and pressure gauge 17.
Analysis is sampled to the waste acid in high-fluorine chlorine waste acid sewage storage tank 1, obtains waste acid sewage index situation such as 1 institute of table
Show.
1 waste acid sewage index situation of table
It is chain into sour regulating valve 12 and liquid level display controller 15, realize the automatic feed for smelting waste acid sewage.Work as distillation
It when liquid level in kettle 2≤50%, is opened into sour regulating valve 12, starts that waste acid is added into distillation still 2, when liquid level >=70%, into acid
Regulating valve 12 is closed, and stops starting to distill into acid.
2 bottom of distillation still is equipped with slag acid tube and is connected to slag acid pond 3, and slag acid tube is equipped with acid discharge regulating valve 16, and pH is examined online
It surveys instrument 14 and acid discharge regulating valve 16 is chain, as 5≤pH value of distillate < 6 in distillation still, 16 aperture of acid discharge regulating valve is 10%；
When pH value >=6,16 standard-sized sheet of acid discharge regulating valve；As pH value < 5, acid discharge regulating valve 16 is closed entirely.In the distillation for smelting waste acid
Cheng Zhong, with the volatilization of acid, the pH value of distillate is gradually risen in distillation still 2, when pH value >=5 constantly, distillation process is completed, row
Sour regulating valve 16 starts to open discharge slag acid, when pH value >=6,16 standard-sized sheet of acid discharge regulating valve, when slag acid is emitted into 2 liquid of distillation still
Position is opened into sour regulating valve 12, is started into distillation still 2 into waste acid when dropping to 50%, because waste acid pH value is lower, into waste acid
In the process, liquid pH value reduces in distillation still, and when being reduced to pH value < 5, acid discharge regulating valve 16 is closed entirely, stops deslagging；Meanwhile
When 2 liquid level of distillation still appreciation 70%, closed into sour regulating valve 12.With the volatilization of acid, in distillation still 2 pH value of distillate by
Edge up height, when pH value >=5 constantly, distillation process is completed, and acid discharge regulating valve 16 starts to open discharge slag acid, when pH value >=6, row
Sour 16 standard-sized sheet ... of regulating valve so recycles, and realizes the continuous continuous still processing of waste acid.
In distillation process, taken by the waste acid sewage and its corresponding obtained dilute sulfuric acid that distills of three batches of processing
Sample, and volume metering is carried out to the dilute sulfuric acid that every batch of obtains, show that data are shown in Table 2:
The distillation processing result of 2 three batch waste acid sewage of table
(it is 1000L that every batch of, which handles the volume of waste acid sewage)
Steam pipe is coiled structure in distillation still 2, and steam pipe is equipped with steam flow control valve 18, in distillation still 2
Temperature display controller 13 is electrically connected with steam flow control valve 18, and temperature display controller 13 and steam flow control valve 18 are just
Often when work, the temperature setting of distillate is 50 DEG C -90 DEG C.As a kind of optimal technical scheme, also optional electricity consumption adds distillation still 2
Hot mode heating, during electric heating, the temperature control of distillate is 50 DEG C -90 DEG C.At the top of distillation still 2 be equipped with exhaust pipe with it is cold
Condenser 4 is connected to, and vacuum checking device 19 is equipped in condenser 4, vacuum checking device 19 and frequency conversion vacuum pump 9 are chain, and frequency conversion is true
When sky 9 work of pump, negative pressure is arranged between -0.02MPa~-0.04MPa in condenser 4.In condenser 4, condensed water walks pipe
Journey, distillate walk shell side, and condensed water is constantly recycled in condenser by condensate water circulatory pond 5 and condensate water circulatory pump 6, used
Cooling in the distillate that will be come out out of distillation still 2, the bottom of condenser 4 is equipped with dilute sulfuric acid pipe, and distillate after cooling passes through
Dilute sulfuric acid pipe enters dilute sulfuric acid storage tank 7.The top of condenser 4 and dilute sulfuric acid storage tank 7 is respectively equipped with exhaust pipe and gas-liquid separator 8
Connection, in gas-liquid separator 8, gas phase is evacuated to tail gas absorber 10 by frequency conversion vacuum pump 9 and washs, and liquid phase passes through gas-liquid separator
The drain pipe of 8 bottoms returns in dilute sulfuric acid storage tank 7.Frequency conversion vacuum pump 9 is connected to gas-liquid separator 4 and tail gas absorption by pipeline
Between tower 10；10 bottom of tail gas absorber is equipped with pipeline and 11 inlet communication of tail gas absorption circulating pump, tail gas absorption circulating pump 11
Outlet be connected to the top of tail gas absorber 10, and be connected to the spray head in tail gas absorber, to the tail come from tower bottom
Gas is washed, and tail gas empties at the top of tail gas absorber 10 after washing.
Finally, it is stated that preferred embodiment above is merely to illustrate the technical solution of the utility model rather than limits, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (9)
1. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage, it is characterised in that: the distillation of the high-fluorine chlorine waste acid sewage
Processing unit includes waste acid sewage storage tank (1), distillation still (2), slag acid pond (3), condenser (4), condensate water circulatory pond (5), cold
Condensate circulating pump (6), dilute sulfuric acid storage tank (7), gas-liquid separator (8), frequency conversion vacuum pump (9), tail gas absorber (10), tail gas are inhaled
It receives circulating pump (11)；The tank bottom of waste acid sewage storage tank (1) is equipped with acid inlet tube and is connected to distillation still (2)；Temperature is equipped in distillation still (2)
It spends display controller (13), distillation still (2) bottom is equipped with slag acid tube and is connected to slag acid pond (3)；Exhaust is equipped at the top of distillation still (2)
Pipe is connected to condenser (4), is equipped with vacuum checking device (19) in condenser (4), and the bottom of condenser (4) is equipped with dilute sulfuric acid pipe
It is connected to dilute sulfuric acid storage tank (7)；The top of condenser (4) and dilute sulfuric acid storage tank (7) is equipped with exhaust pipe and gas-liquid separator (8) even
Logical, frequency conversion vacuum pump (9) is connected between gas-liquid separator (8) and tail gas absorber (10) by pipeline；Tail gas absorber
(10) bottom is equipped with pipeline and tail gas absorption circulating pump (11) inlet communication, and the outlet of tail gas absorption circulating pump (11) is connected to
The top of tail gas absorber (10).
2. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: distillation still
(2) it is heated using steam, heating steam pipe is equipped with steam flow control valve (18)；Distillation still (2) interior temperature display controller
(13) it is electrically connected with steam flow control valve (18), temperature display controller (13) and steam flow control valve (18) work normally
When, the temperature of liquid is 50 DEG C -90 DEG C in distillation still.
3. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: the distillation
It is additionally provided with pH on-line detector (14) in kettle (2), slag acid tube is equipped with acid discharge regulating valve (16)；PH on-line detector (14) and row
Sour regulating valve (16) is chain, and as 5≤pH value < 6, acid discharge regulating valve (16) aperture is 10%, and when pH value >=6, acid discharge is adjusted
Valve (16) standard-sized sheet；As pH value < 5, acid discharge regulating valve (16) is closed entirely.
4. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: described is true
Empty detection device (19) and frequency conversion vacuum pump (9) are chain, frequency conversion vacuum pump (9) work when, condenser (4) interior negative regulation-
Between 0.02MPa~-0.04MPa.
5. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: on acid inlet tube
Equipped with into sour regulating valve (12), liquid level display controller (15) are additionally provided in distillation still, are shown into sour regulating valve (12) and liquid level
Controller (15) is chain, when distillation still liquid level >=70%, closes into sour regulating valve (12)；When distillation still liquid level≤50%, into
Sour regulating valve (12) is opened.
6. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: the distillation
Pressure gauge (17) are additionally provided in kettle (2).
7. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: the steaming
Evaporating kettle (2) material is enamel.
8. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: the gas-liquid
Separator (8) bottom is equipped with drain pipe and is connected in dilute sulfuric acid storage tank (7).
9. a kind of distillation processing unit of high-fluorine chlorine waste acid sewage according to claim 1, it is characterised in that: the distillation
Kettle (2) is heated using Electric heating, and when normal work, the temperature of liquid is 50 DEG C -90 DEG C in distillation still.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920152024.7U CN209602138U (en) | 2019-01-29 | 2019-01-29 | A kind of distillation processing unit of high-fluorine chlorine waste acid sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920152024.7U CN209602138U (en) | 2019-01-29 | 2019-01-29 | A kind of distillation processing unit of high-fluorine chlorine waste acid sewage |
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| Publication Number | Publication Date |
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| CN209602138U true CN209602138U (en) | 2019-11-08 |
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| CN201920152024.7U Active CN209602138U (en) | 2019-01-29 | 2019-01-29 | A kind of distillation processing unit of high-fluorine chlorine waste acid sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104818A (en) * | 2021-04-20 | 2021-07-13 | 昆明冶金研究院有限公司 | Method for removing fluorine and chlorine from nonferrous metal smelting waste acid |
-
2019
- 2019-01-29 CN CN201920152024.7U patent/CN209602138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104818A (en) * | 2021-04-20 | 2021-07-13 | 昆明冶金研究院有限公司 | Method for removing fluorine and chlorine from nonferrous metal smelting waste acid |
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