CN204051217U - A kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron - Google Patents
A kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron Download PDFInfo
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- CN204051217U CN204051217U CN201420407782.6U CN201420407782U CN204051217U CN 204051217 U CN204051217 U CN 204051217U CN 201420407782 U CN201420407782 U CN 201420407782U CN 204051217 U CN204051217 U CN 204051217U
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- quartz sand
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Abstract
The utility model discloses a kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron.The utility model comprise waste hydrochloric acid for acid tube road, store sour pond and filtering tank, connect for acid tube road and store sour pond, store bottom, sour pond and be connected with waste discharge slag pipeline, store sour pond and be connected to filtering tank top by acid inlet tube, filtering tank bottom is provided with outlet, outlet is connected with acid output pipeline, is provided with filter course in described filtering tank, described filter course comprises diamond dust filter course, activated carbon filter layer, the first acidproof quartz sand filtration layer and the second acidproof quartz sand filtration layer from top to bottom successively.The utility model is to the process less energy consumption of waste hydrochloric acid, and cost is low, and efficiency is high, easy to operate, and applicability is good, still can utilize by secondary, produce economic worth to the product after the process of waste hydrochloric acid.
Description
Technical field
The utility model relates to waste hydrochloric acid processing technology field, particularly a kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron.
Background technology
In strip pickling technique, adopt mass fraction be greater than >=technical hydrochloric acid of 31% is mixed with pickle and the steel strip surface generation chemical reaction of variable concentrations, reaches the object of rust cleaning, scrubbing.Acid cleaning process produces a large amount of spent acid.Generally, one ton of band steel will consume 15-18kg hydrochloric acid, produces 20-30kg waste hydrochloric acids.When strip pickling, the concentration of hydrochloric acid lower than 3% or frerrous chloride concentration higher than 20% time, will discharge as spent acid, it is medium pending that waste hydrochloric acid is stored in spent acid storage tank.China's cold rolling carbon steel steel plate total output conservative estimation of a year is not less than 5,000 ten thousand tons, calculates like this, and the waste hydrochloric acid that the whole nation produces for a year is about 100-150 ten thousand tons.Waste hydrochloric acid is a kind of chemical waste of high pollution highly corrosive, some larger producers, drop into substantial contribution and build waste hydrochloric acid regeneration equipment, acid regeneration generally adopts roasting technique, carrying out roasting with natural gas, coal gas or fuel oil to being injected into vaporific waste hydrochloric acid, obtaining HCl and Fe regenerated
2o
3.But this process is the process consuming the energy in a large number.The producer that some scales are less, often redeems the waste hydrochloric acid produced and sells, the company of qualification please be had to transport and pay certain expense.In any case the process of waste hydrochloric acid is " crux " place in a cold rolled strip steel production all the time.Therefore, finding the device of the process waste hydrochloric acid that a kind of cost is lower, energy resource consumption is less, is the problem that cold-rolled steel sheet industry needs solution badly.
Summary of the invention
The purpose of this utility model is to provide a kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron, and to the process less energy consumption of waste hydrochloric acid, cost is low, efficiency is high, easy to operate, and applicability is good, product after the process of waste hydrochloric acid still can be utilized by secondary, produce economic worth.
The utility model solves the technical scheme that its technical problem adopts:
A kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron, comprise the confession acid tube road of waste hydrochloric acid, store sour pond and filtering tank, connect for acid tube road and store sour pond, store bottom, sour pond and be connected with waste discharge slag pipeline, store sour pond and be connected to filtering tank top by acid inlet tube, filtering tank bottom is provided with outlet, outlet is connected with acid output pipeline, be provided with filter course in described filtering tank, described filter course comprises diamond dust filter course, activated carbon filter layer, the first acidproof quartz sand filtration layer and the second acidproof quartz sand filtration layer from top to bottom successively.
The utility model, for the acid-treated problem of cold-rolled steel sheet industry abraum salt, has carried out innovating improving.Looking for another way, it is ferrous waste hydrochloric acid to be processed into water treatment with medicament-liquid chlorine, process less energy consumption, and cost is low, and efficiency is high, easy to operate, and the product after process still can utilize by secondary, produces economic worth.
Waste hydrochloric acid enters and stores sour pond, carries out natural sedimentation, partial impurities and acid non-soluble substance preliminary sedimentation is got off, finally enters filtering tank, by most impurity and acid non-soluble substance filtering, thus meets the standard of the ferrous product of water treatment liquid chlorine.
It is ferrous that waste hydrochloric acid will be processed into water treatment liquid chlorine, the process of acid non-soluble substance is a key issue, find a kind of science, efficiently, the device of cheap filtering acid non-soluble substance, the utility model is for this problem, improve filter, filter course comprises diamond dust filter course from top to bottom successively, activated carbon filter layer, first acidproof quartz sand filtration layer and the second acidproof quartz sand filtration layer, diamond dust filter course is main filter course, diamond dust acid resistance is good, and wearability is good, good filtration effect, long service life, then activated carbon filtration is adopted, the things such as some organic impurities can be adsorbed, finally adopt acidproof quartz sand filtration also effectively can remove acid non-soluble substance, diamond dust, active carbon, acidproof quartz sand three kinds of filter medium complement filters, filter effect can carry out complementation, can work in coordination with during filtration and play a role, to the good filtration effect of acid non-soluble substance and other impurity.
As preferably, diamond dust filter course thickness is 60-70cm, and activated carbon filtration layer thickness is 8-10cm, and the first acidproof quartz sand filtration layer thickness is 10-12cm, and the second acidproof quartz sand filtration layer thickness is 10-15cm.
As preferably, the particle diameter of the filter medium diamond dust of diamond dust filter course is 0.45-0.75mm, the particle diameter of the filter medium active carbon of activated carbon filter layer is 2-5mm, the particle diameter of the acidproof quartz sand of filter medium of the first acidproof quartz sand filtration layer is 7-15mm, and the particle diameter of the acidproof quartz sand of filter medium of the second acidproof quartz sand filtration layer is 15-25mm.
The utility model adopts the filter medium of specified particle diameter from top to bottom, coordinates specific thickness, good filtration effect.The utility model adopts the filter medium particle diameter progressively increased progressively to filter from top to bottom, so not only can prevent blockage problem when filtering, and easily carry out backwash after filtration.
As preferably, filtering tank is also connected with flushing pipe, flushing pipe comprises surface washing pipeline and Backwash pipeline, and surface washing pipeline is connected to the top of filtering tank, and Backwash pipeline is connected to the bottom of filtering tank.
As preferably, be also provided with reflux line between acid output pipeline and confession acid tube road, one end of reflux line connects acid output pipeline, and the other end connects for acid tube road.If in the waste hydrochloric acid after filtering during acid non-soluble substance content > 0.5 wt %, waste hydrochloric acid is sent into filtering tank secondary filter again by reflux line, thus obtain the ferrous product of qualified water treatment liquid chlorine.
As preferably, in the middle part of the filtering tank of acid output pipeline side, be also connected with backwash admission line.
The beneficial effects of the utility model are: to the process less energy consumption of waste hydrochloric acid, cost is low, and efficiency is high, easy to operate, and applicability is good, still can utilize by secondary, produce economic worth to the product after the process of waste hydrochloric acid.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
In figure: 1, for acid tube road, 2, store sour pond, 3, waste discharge slag pipeline, 4, pump, 5, acid inlet tube, 6, filtering tank, 61, diamond dust filter course, 62, activated carbon filter layer, the 63, first acidproof quartz sand filtration layer, 64, the second acidproof quartz sand filtration layer, 7, acid output pipeline, 8, reflux line, 9, surface washing pipeline, 10, Backwash pipeline, 11, blow-off line, 12, backwash admission line.
Detailed description of the invention
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron as shown in Figure 1, what comprise waste hydrochloric acid supplies acid tube road 1, store sour pond 2 and filtering tank 6, connect for acid tube road 1 and store sour pond 2, store bottom, sour pond 2 and be connected with waste discharge slag pipeline 3, store sour pond 2 and be connected to filtering tank 6 top by acid inlet tube 5, acid inlet tube 5 is provided with the pump 4 that transmitting power is provided, filtering tank 6 bottom is provided with outlet, outlet is connected with acid output pipeline 7, filter course is equipped with in filtering tank inside, filter course is followed successively by diamond dust filter course 61 from top to bottom, activated carbon filter layer 62, first acidproof quartz sand filtration layer 63 and the second acidproof quartz sand filtration layer 64.
Diamond dust filter course thickness is that 60-70cm(the present embodiment selects 65cm), activated carbon filtration layer thickness is that 8-10cm(the present embodiment selects 9cm), first acidproof quartz sand filtration layer thickness is that 10-12cm(the present embodiment selects 11cm), the second acidproof quartz sand filtration layer thickness is that 10-15cm(the present embodiment selects 12cm).
The nonuniformity coefficient of diamond dust (commercially available) and active carbon (commercially available) is at 1.3-1.5, and the nonuniformity coefficient of acidproof quartz sand (commercially available) is at 1.5-1.70.
Filter medium of the present utility model: the particle diameter of the filter medium diamond dust of diamond dust filter course is 0.45-0.75mm, the particle diameter of the filter medium active carbon of activated carbon filter layer is 2-5mm, the particle diameter of the acidproof quartz sand of filter medium of the first acidproof quartz sand filtration layer is 7-15mm, and the particle diameter of the acidproof quartz sand of filter medium of the second acidproof quartz sand filtration layer is 15-25mm.Acidproof quartz sand is dissolution rate≤3.5% in the hydrochloric acid of concentration 30wt%.
Filtering tank is also connected with flushing pipe, and flushing pipe comprises surface washing pipeline 9 and Backwash pipeline 10, and surface washing pipeline 9 is connected to the top of filtering tank 6, and Backwash pipeline 10 is connected to the bottom of filtering tank 6.Also be provided with reflux line 8 between acid output pipeline 7 and confession acid tube road 1, one end of reflux line 8 connects acid output pipeline 7, and the other end connects for acid tube road 1.Backwash admission line 12 is also connected with in the middle part of the filtering tank 6 of acid output pipeline 7 side.Filtering tank 6 is also connected with blow-off line 11, and a termination of blow-off line 11 is connected in the middle part of filtering tank 6, and another termination of blow-off line 11 is connected on acid output pipeline 7.
Technological process of the present utility model is: the qualified waste hydrochloric acid (content >=20 wt % of frerrous chloride in waste hydrochloric acid, content≤5 wt the % of free acid, meet arsenic content≤0.0005wt% simultaneously, lead content≤0.004 wt %, mercury content≤0.00002 wt %, cadmium content≤0.0005 wt %, chromium content≤0.01 wt %, Zn content≤0.015 wt % content standard, waste hydrochloric acid is from Zhejiang Fu Chun environmental friendly material Co., Ltd) store in sour pond 2 by sending into for acid tube road 1 from waste hydrochloric acid storage tank, after storing and staticly settling in sour pond 2, store sour pond 2 staticly settle after waste residue discharged by waste discharge slag pipeline 3, by pump 4, the waste hydrochloric acid storing upper strata, sour pond 2 is delivered to filtering tank 6 by acid inlet tube 5, waste hydrochloric acid enters through filter tank 6 top, from top to bottom by the diamond dust filter course 61 of filtering tank 6 inside, activated carbon filter layer 62, first acidproof quartz sand filtration layer 63 and the second acidproof quartz sand filtration layer 64, finally discharge from the acid output pipeline 7 of filtering tank 6 bottom, in the waste hydrochloric acid of discharge filtering tank 6 bottom, acid non-soluble substance content detects, when in waste hydrochloric acid during the wt % of acid non-soluble substance content≤0.5, collect gained waste hydrochloric acid and be the ferrous product of qualified water treatment liquid chlorine, when in waste hydrochloric acid during acid non-soluble substance content > 0.5 wt %, waste hydrochloric acid is sent into filtering tank 6 secondary filter again by reflux line 8, thus obtain the ferrous product of qualified water treatment liquid chlorine.
Filtering tank 6 wants periodic flushing, flushing has two kinds of modes, and one carries out backwash again after surface washing: first press water is sprayed filtering layer surface from filtering tank 6 top through surface washing pipeline 9, make layer of sand loose, the pressure of surface washing, at 0.02MPa, then carries out backwash.Backwash is that stirring layer of sand, makes sand grains mutually collide and rinse well from filtering tank 6 steps through Backwash pipeline 10 oppositely press-in filtered water or clear water.Backwash speed: 18-38 m/h.The second surface washing and backwash are carried out simultaneously: if when containing a large amount of clay materials in former spent acid, backwash then should be carried out with surface washing simultaneously, prevent from forming mud.Backwash will open backwash admission line 12, is convenient to backwash.
Blow-off line 11 blowdown is opened after having rinsed.
Through the waste hydrochloric acid of the utility model process, the ferrous product of water treatment liquid chlorine of acquisition meets HG/T4200-2011 " People's Republic of China's chemical industry standard " regulation.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (6)
1. the device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron, it is characterized in that, comprise the confession acid tube road of waste hydrochloric acid, store sour pond and filtering tank, connect for acid tube road and store sour pond, store bottom, sour pond and be connected with waste discharge slag pipeline, store sour pond and be connected to filtering tank top by acid inlet tube, filtering tank bottom is provided with outlet, outlet is connected with acid output pipeline, be provided with filter course in described filtering tank, described filter course comprises diamond dust filter course, activated carbon filter layer, the first acidproof quartz sand filtration layer and the second acidproof quartz sand filtration layer from top to bottom successively.
2. device according to claim 1, is characterized in that: diamond dust filter course thickness is 60-70cm, and activated carbon filtration layer thickness is 8-10cm, and the first acidproof quartz sand filtration layer thickness is 10-12cm, and the second acidproof quartz sand filtration layer thickness is 10-15cm.
3. device according to claim 2, it is characterized in that: the particle diameter of the filter medium diamond dust of diamond dust filter course is 0.45-0.75mm, the particle diameter of the filter medium active carbon of activated carbon filter layer is 2-5mm, the particle diameter of the acidproof quartz sand of filter medium of the first acidproof quartz sand filtration layer is 7-15mm, and the particle diameter of the acidproof quartz sand of filter medium of the second acidproof quartz sand filtration layer is 15-25mm.
4. the device according to claim 1 or 2 or 3, it is characterized in that: filtering tank is also connected with flushing pipe, flushing pipe comprises surface washing pipeline and Backwash pipeline, and surface washing pipeline is connected to the top of filtering tank, and Backwash pipeline is connected to the bottom of filtering tank.
5. the device according to claim 1 or 2 or 3, is characterized in that: be also provided with reflux line between acid output pipeline and confession acid tube road, and one end of reflux line connects acid output pipeline, and the other end connects for acid tube road.
6. the device according to claim 1 or 2 or 3, is characterized in that: be also connected with backwash admission line in the middle part of the filtering tank of acid output pipeline side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407782.6U CN204051217U (en) | 2014-07-23 | 2014-07-23 | A kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron |
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| CN201420407782.6U CN204051217U (en) | 2014-07-23 | 2014-07-23 | A kind of device utilizing waste hydrochloric acid to prepare water treatment liquid chlorine ferrous iron |
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| CN204051217U true CN204051217U (en) | 2014-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315734A (en) * | 2015-06-24 | 2017-01-11 | 宜兴市富陶环境保护设备有限公司 | Activated carbon filtering device |
-
2014
- 2014-07-23 CN CN201420407782.6U patent/CN204051217U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315734A (en) * | 2015-06-24 | 2017-01-11 | 宜兴市富陶环境保护设备有限公司 | Activated carbon filtering device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200902 Address after: No.9 fangjiadun, Guangming Village, Lingqiao Town, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Fuyang Lili cold rolling Co.,Ltd. Address before: 311418, No. 188, Chun Yong Road, Ling Qiao Town, Hangzhou City, Zhejiang, Fuyang Patentee before: ZHEJIANG FUCHUN ENVIRONMENTAL PROTECTION NEW MATERIALS Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |