CN209428154U - A kind of production system of bodied ferric sulfate - Google Patents
A kind of production system of bodied ferric sulfate Download PDFInfo
- Publication number
- CN209428154U CN209428154U CN201920132421.8U CN201920132421U CN209428154U CN 209428154 U CN209428154 U CN 209428154U CN 201920132421 U CN201920132421 U CN 201920132421U CN 209428154 U CN209428154 U CN 209428154U
- Authority
- CN
- China
- Prior art keywords
- spray column
- storage tank
- level
- liquid
- ferric sulfate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of production systems of bodied ferric sulfate, the first troughing, air oxidation device, conditioning tank, the first plate and frame filter press, washing pool, the second plate and frame filter press, the second troughing, the first reaction kettle, the second reaction kettle and finished product storage tank including being sequentially connected setting, it is connected separately with iron containing sludge storage tank and the first liquid alkaline storage tank on the feed inlet of first troughing, is connected separately with ferrous sulfate storage tank and oxidant storage tank on the second reaction kettle.The iron containing sludge that the utility model generates after being handled using pickling waste waters produces bodied ferric sulfate as raw material, iron in sludge obtains resource reclaim, greatly reduce the quantity of sludge, to reduce the processing cost of hazardous waste sludge, and the dosage for reducing ferrous sulfate and oxidant, reduces production cost.
Description
Technical field
The utility model relates to flocculant production technical field, in particular to a kind of production system of bodied ferric sulfate.
Background technique
The inorganic coagulant being commonly used is broadly divided into two major classes: aluminium salt and molysite.With polyaluminium chloride, sulphur in aluminium salt
Based on sour aluminium, aluminium chloride.And molysite is then based on bodied ferric sulfate.
Bodied ferric sulfate is a kind of inorganic polymer flocculant, has PH applicability wide, and removal of impurity is high, alumen ustum sedimentation
The features such as fast, is widely used in processing industrial wastewater, municipal sewage, industrial water and Drinking Water.
In the prior art, production bodied ferric sulfate mainly uses catalytic oxidation and direct oxidation method.Catalysis oxidation
Method is catalyst using nitric acid or sodium nitrite, the use of air either pure oxygen is that oxidant is produced, although this method
Production cost is low, but has a small amount of nitrogen oxides in production process and generate, and also has impurity salinity to be brought into product in the product；
Direct oxidation method uses sodium chlorate or hydrogen peroxide, and sodium chlorate can also bring impurity salinity into, although Hydrogen Peroxide Production product impurity is few,
But the purity of itself is lower, dosage is big, and production cost is higher.
The preparation of industrial most of bodied ferric sulfates uses direct oxidation method, using ferrous sulfate as raw material, in sulfuric acid
In the presence of, it is aoxidized with strong oxidizer (such as hydrogen peroxide, sodium chlorate), is hydrolyzed, is polymerized.Such simple process, but green vitriol
Big with the dosage of oxidant, liquid product per ton needs about 700 kilograms of green vitriol, and 36 kilograms of sodium chlorate, higher cost.
A large amount of pickling waste waters can be generated in steel processing acid cleaning process, it is low that price is generallyd use in sewage disposal process
Honest and clean basic treatment agent lime (calcium oxide) is neutralized acid-bearing wastewater, and Neutralisation treatment method, which can generate, largely to be contained
Iron sludge (containing ferrous hydroxide, iron hydroxide etc.), belongs to danger wastes, unprocessed is arbitrarily to discharge.It is such
Situation, according to environmental requirement enterprise under the premise of not having sludge treatment capacity, sludge must hand over professional treatment producer to dirt
Mud is handled, and unquestionably, great number freight can be generated during transfer, enterprise will also undertake treatment of sludge expense
With.
Summary of the invention
The purpose of this utility model is to provide a kind of production system of bodied ferric sulfate, generated after being handled with pickling waste waters
Iron containing sludge be that raw material produces bodied ferric sulfate, the iron in sludge obtains resource reclaim, greatly reduce the quantity of sludge, from
And reduce the processing cost of hazardous waste sludge, and reduce the dosage of ferrous sulfate and oxidant, reduce production cost.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of production system of bodied ferric sulfate, including being sequentially connected the first troughing of setting, air oxidation device, adjusting
Save pond, the first plate and frame filter press, washing pool, the second plate and frame filter press, the second troughing, the first reaction kettle, the second reaction kettle and
Finished product storage tank, iron containing sludge storage tank and the first liquid alkaline storage tank are connected separately on the feed inlet of the first troughing, and conditioning tank goes out
Material mouth connects the feed inlet of the first plate and frame filter press, and the solid outlet of the first plate and frame filter press connects washing pool, the first sheet frame pressure
The feed inlet of the liquid outlet connection conditioning tank of filter, the solid outlet of the second plate and frame filter press connect the charging of the second troughing
Mouthful, the liquid outlet of the second plate and frame filter press also connects the feed inlet of conditioning tank, the connection of the first reaction kettle and the second reaction kettle
Pipeline is equipped with filter, and the connecting line of the second reaction kettle and finished product storage tank is equipped with filter, also divides on the second reaction kettle
It is not connected with ferrous sulfate storage tank and oxidant storage tank.
The air oxidation device includes multi-stage spray tower, and multi-stage spray tower passes through piping connection, the company of adjacent spray column
Adapter tube road is equipped with delivery pump, is from top to bottom disposed with demisting layer, spray head and Pall ring, the top of spray column in spray column
Portion is equipped with gas outlet, and the top of spray column is equipped with liquid inlet opening, and liquid inlet opening passes through piping connection spray head, spray column
Lower part is equipped with air intlet, and air intlet is located at below Pall ring, and air intlet is connect by pipeline with air blower, spray column
Bottom end connects fluid reservoir.Pall ring setting be in order to allow liquid dispersion more evenly, contact with air it is more abundant, oxidation it is more thorough.
Demisting layer is the conventional structure of existing spray column, can buy acquisition.
Iron containing sludge liquid alkaline is adjusted alkalinity first and is blended in the mashing of the first troughing, alkaline condition by the utility model
Lower ferrous iron is oxidized easily as ferric iron, makes material contact more abundant, oxygen with air the form that iron sludge becomes mud
Change thorough.In air oxidation device after blowing air oxidation oxidation, the ferrous iron in sludge is all converted into ferric iron, then adjusts
In pond plus sulphur acid for adjusting pH is to 2-3, under the conditions of such, ferric ion can be made to be referred to as ferric hydroxide precipitate, and at this time
Other heavy metal ion do not precipitate, and achieve the purpose that iron ion and other separation of heavy metal ions.First plate and frame filter press is solid
Mud cake main component after liquid separation is ferric hydroxide precipitate, is washed by washing pool to remove raffinate, then the second sheet frame pressure
Filter is filtered dry, and further after drying, for iron ion content about in 30-46%, every heavy metal index is lower than bodied ferric sulfate in mud cake
Requirement, can become product in iron ion source and ensure that the product of production meets every heavy metal index request.Place
The sludge and the concentrated sulfuric acid managed are beaten in the second troughing, subsequently into reacting under the first reaction kettle temperature-pressure.
It is worth noting that, iron hydroxide sludge, during storage and transport, ferric hydroxide precipitate crystal form can occur
Change, under normal condition, sulfuric acid and hydrochloric acid can only be slightly soluble in.Therefore, nobody is using the sludge production containing ferric hydroxide precipitate
Bodied ferric sulfate.Inventor passes through long-term experimental study, has developed specific technique and allows the sludge containing ferric hydroxide precipitate
Preferably reaction needs to control specific pressure and temperature simultaneously, the first reaction kettle adds so as to produce bodied ferric sulfate
The temperature of warm compressive reaction is 105-130 DEG C, and reaction pressure control is 0.1-1Mpa, and simple heating or pressurization can not promote
The reaction of sludge containing ferric hydroxide precipitate, blender can not stir at all, and excessively high reaction temperature can make evaporation capacity too fast,
Lead to also no reaction completion, material, which is evaporated, to be become mud and be difficult to stir.Even if heating, pressurization, still, when temperature is lower than
At 100 DEG C, although cooperation pressurized conditions, the sludge containing ferric hydroxide precipitate can not react.
Since the iron content of the iron containing sludge of pickling waste waters generation is limited, it is unable to reach the requirement of bodied ferric sulfate, finally
The step of, the second reaction kettle adds in order to supply iron content when ferrous sulfate and oxidizer are reacted, and oxidant can will be added
Ferrous sulfate oxidation examines bodied ferric sulfate, so that product closes rule.The utility model be final step add it is a small amount of
Ferrous sulfate and oxidant greatly reduce the use of ferrous sulfate and oxidant, reduce production cost.
The spray head has multiple, and is evenly arranged in spray column.
The second liquid alkaline storage tank is equipped between adjacent spray column, the second liquid alkaline storage tank passes through liquid alkaline transfer pipeline and adjacent spray
The connecting line connection of tower is drenched, liquid alkaline transfer pipeline is equipped with metering pump.
The connecting line of adjacent spray column is equipped with pH meter, and pH meter is located at the connection of liquid alkaline transfer pipeline and adjacent spray column
On rear side of the junction of pipeline.
Multi-stage spray tower is three-level spray column, including level-one spray column, second level spray column and three-level spray column, the first mashing
The discharge port in pond is connect with the liquid inlet opening of level-one spray column, and the fluid reservoir outlet of level-one spray column bottom end passes through piping connection
The liquid inlet opening of second level spray column, the fluid reservoir outlet of second level spray column bottom end pass through the liquid of piping connection three-level spray column
Feed inlet, the fluid reservoir outlet of three-level spray column bottom end pass through the feed inlet of piping connection conditioning tank.
Concentrated sulfuric acid storage tank is also connected on the feed inlet of second troughing.
The beneficial effects of the utility model are: the iron containing sludge generated after being handled using pickling waste waters produces polymerised sulphur as raw material
Sour iron, the iron in sludge obtain resource reclaim, the quantity of sludge are greatly reduced, to reduce the handling of hazardous waste sludge
With, and reduce the dosage of ferrous sulfate and oxidant, reduce production cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is a kind of structural schematic diagram of the utility model air oxidation device.
In figure: 1, iron containing sludge storage tank, the 2, first liquid alkaline storage tank, the 3, first troughing, 4, air oxidation device, 41, spray
Drench tower, 42, delivery pump, 43, demisting layer, 44, spray head, 45, Pall ring, 46, air intlet, 47, liquid inlet opening, 48, drum
Blower, 49, fluid reservoir, 50, metering pump, 51, pH meter, the 52, second liquid alkaline storage tank, 53, liquid alkaline transfer pipeline, 6, conditioning tank, 7,
First plate and frame filter press, 8, washing pool, the 9, second plate and frame filter press, the 10, second troughing, the 11, first reaction kettle, 12, second
Reaction kettle, 13, finished product storage tank, 14, filter, 15, ferrous sulfate storage tank, 16, oxidant storage tank, 17, concentrated sulfuric acid storage tank.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically
It is bright.
Embodiment:
A kind of production system of bodied ferric sulfate as shown in Figure 1, the first troughing 3, sky including being sequentially connected setting
Gas oxidation unit 4, conditioning tank 6, the first plate and frame filter press 7, washing pool 8, the second plate and frame filter press 9, the second troughing 10, first
Reaction kettle 11, the second reaction kettle 12 and finished product storage tank 13 are connected separately with iron containing sludge storage tank 1 on the feed inlet of first troughing
And liquid alkaline storage tank 2, the discharge port of conditioning tank connect the feed inlet of the first plate and frame filter press, the solid outlet of the first plate and frame filter press
Washing pool, the feed inlet of the liquid outlet connection conditioning tank of the first plate and frame filter press are connected, the solid of the second plate and frame filter press goes out
Mouth connects the feed inlet of the second troughing, is connected with concentrated sulfuric acid storage tank 17, the second plate compression on the feed inlet of the second troughing
The liquid outlet of machine also connects the feed inlet of conditioning tank, and the connecting line of the first reaction kettle and the second reaction kettle is equipped with filter
14, the connecting line of the second reaction kettle and finished product storage tank is equipped with filter, and sulfuric acid Asia is also respectively connected on the second reaction kettle
Iron storage tank 15 and oxidant storage tank 16.
The air oxidation device includes three-level spray column 41(Fig. 2), three-level spray column includes level-one spray column, second level spray
Tower and three-level spray column are drenched, level-one spray column, second level spray column and three-level spray column pass through piping connection, the company of adjacent spray column
Adapter tube road is equipped with delivery pump 42, is from top to bottom disposed with demisting layer 43, spray head 44 and Pall ring 45 in spray column, sprays
Leaching head has multiple, and is evenly arranged in spray column, Pall ring a pair setting up and down, the top of spray column is equipped with gas outlet, spray column
Top be equipped with liquid inlet opening 47, for liquid inlet opening by piping connection spray head, the lower part of spray column is equipped with air intlet
46, air intlet is located at below Pall ring, and air intlet is connect by pipeline with air blower 48, and the bottom end of spray column connects liquid storage
Tank 49, delivery pump are located on fluid reservoir.It is all provided between level-one spray column and second level spray column, second level spray column and three-level spray column
There is liquid alkaline storage tank 52, liquid alkaline storage tank is connect by liquid alkaline transfer pipeline 53 with the connecting line of adjacent spray column, liquid alkaline delivery pipe
Road is equipped with metering pump 50.The connecting line of level-one spray column and second level spray column is equipped with pH meter 51, and it is defeated that pH meter is located at liquid alkaline
On rear side of the junction for sending the connecting line of pipeline and level-one spray column and second level spray column, and be located at the liquid of second level spray column into
On front side of material mouth.The connecting line of second level spray column and three-level spray column is equipped with pH meter 51, pH meter be located at liquid alkaline transfer pipeline and
On rear side of the junction of the connecting line of second level spray column and three-level spray column, and before the liquid inlet opening of three-level spray column
Side.
During air oxidation, sludge meeting souring causes oxidation effectiveness poor, it is therefore desirable to and it supplements liquid alkaline and adjusts alkaline pH,
The pH of pH meter detection liquid feedstock feeds back to controller, if the pH value of detection not in the range of the 9.5-10.5 of setting, controls
Device, which then controls metering pump, to be beaten liquid alkaline and enters pipeline to adjust the alkaline value of pH to setting.
Process flow is as follows:
The following steps are included:
S1: using the iron containing sludge of pickling waste waters generation as initial feed (can come from steel production enterprise, zinc-plated factory etc.),
Liquid alkaline mixing is added into sludge according to the solid-to-liquid ratio of 1Kg:1L-10L, adjusts pH to 9.5-10.5 and obtains mud；
S2: mud blowing air aoxidizes 1-5 hours；
Treated that mud adds sulphur acid for adjusting pH to 2-3 by S3:S2, and filters pressing is separated by solid-liquid separation, and mud cake is filtered after being rinsed with water
Do to obtain bodied ferric sulfate secondary feedstock；
S4: bodied ferric sulfate secondary feedstock is mixed with beating with the concentrated sulfuric acid, wherein the quality of bodied ferric sulfate secondary feedstock
Percentage is 60-70%, and the mass percent of the concentrated sulfuric acid is 30-40%, sum of the two 100%, subsequently into stirring in reaction kettle
Under the conditions of temperature-pressure react 2-4 hour, reaction temperature is 105-130 DEG C, and for 0.1-1Mpa, reaction terminates for reaction pressure control
Afterwards, pressure is shed to normal pressure, is cooled to 40-60 DEG C, is obtained polyaluminum sulfate iron semi-finished product after being filtered to remove insoluble matter；
S5: iron ion content of the ferrous sulfate into system is added under stirring condition into polyaluminum sulfate iron semi-finished product is
11.5-14% is subsequently added into the sodium chlorate of ferrous sulfate weight 2.6-3.6%, controls 40-60 DEG C of reaction temperature, reaction is to without two
Valence iron ion is terminal, and filtering removal filter residue obtains product.
The indices of the utility model all meet the requirement of GB14591-2006.The iron content that existing pickling waste waters generates
The dangerous waste bargain price of sludge is per ton in 1300-1500 member, the processing for the iron containing sludge that the pickling waste waters of the utility model generates
Cost is per ton in 200-300 member, and 350 kilograms of sludge can about generate 1 ton of liquid polymerization ferric sulfate, moreover it is possible to generate economic effect
Benefit.The utility model efficiently uses the iron containing sludge generated after pickling waste waters processing, greatly reduces the number of sludge
Amount, to reduce the processing cost of hazardous waste sludge, relative to conventional bodied ferric sulfate production system, the utility model is significantly
The dosage for reducing ferrous sulfate and oxidant, reduces production cost.
Embodiment described above is a kind of preferable scheme of the utility model, is not made to the utility model any
Formal limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (7)
1. a kind of production system of bodied ferric sulfate, it is characterised in that: the first troughing, air oxygen including being sequentially connected setting
Makeup set, conditioning tank, the first plate and frame filter press, washing pool, the second plate and frame filter press, the second troughing, the first reaction kettle, second
Reaction kettle and finished product storage tank are connected separately with iron containing sludge storage tank and the first liquid alkaline storage tank on the feed inlet of the first troughing, adjust
The discharge port for saving pond connects the feed inlet of the first plate and frame filter press, and the solid outlet of the first plate and frame filter press connects washing pool, the
The feed inlet of the liquid outlet connection conditioning tank of one plate and frame filter press, the second mashing of solid outlet connection of the second plate and frame filter press
The feed inlet in pond, the liquid outlet of the second plate and frame filter press also connect the feed inlet of conditioning tank, and the first reaction kettle is reacted with second
The connecting line of kettle is equipped with filter, and the connecting line of the second reaction kettle and finished product storage tank is equipped with filter, the second reaction
Ferrous sulfate storage tank and oxidant storage tank are also respectively connected on kettle.
2. a kind of production system of bodied ferric sulfate according to claim 1, it is characterised in that: the air oxidation device
Including multi-stage spray tower, multi-stage spray tower is equipped with delivery pump, spray column by piping connection, the connecting line of adjacent spray column
It is inside from top to bottom disposed with demisting layer, spray head and Pall ring, the top of spray column is equipped with gas outlet, the top of spray column
Equipped with liquid inlet opening, liquid inlet opening is equipped with air intlet, air intlet by piping connection spray head, the lower part of spray column
Below Pall ring, air intlet is connect by pipeline with air blower, and the bottom end of spray column connects fluid reservoir.
3. a kind of production system of bodied ferric sulfate according to claim 2, it is characterised in that: the spray head has more
It is a, and be evenly arranged in spray column.
4. a kind of production system of bodied ferric sulfate according to claim 2, it is characterised in that: between adjacent spray column
Equipped with the second liquid alkaline storage tank, the second liquid alkaline storage tank is connect by liquid alkaline transfer pipeline with the connecting line of adjacent spray column, liquid alkaline
Transfer pipeline is equipped with metering pump.
5. a kind of production system of bodied ferric sulfate according to claim 4, it is characterised in that: the connection of adjacent spray column
Pipeline is equipped with pH meter, and pH meter is located on rear side of the junction of the connecting line of liquid alkaline transfer pipeline and adjacent spray column.
6. a kind of production system of bodied ferric sulfate according to claim 2, it is characterised in that: multi-stage spray tower is three-level
Spray column, including level-one spray column, second level spray column and three-level spray column, discharge port and the level-one spray column of the first troughing
Liquid inlet opening connection, the fluid reservoir outlet of level-one spray column bottom end pass through the liquid inlet opening of piping connection second level spray column,
The fluid reservoir outlet of second level spray column bottom end passes through the liquid inlet opening of piping connection three-level spray column, three-level spray column bottom end
Fluid reservoir outlet passes through the feed inlet of piping connection conditioning tank.
7. a kind of production system of bodied ferric sulfate according to claim 1, it is characterised in that: the charging of the second troughing
Concentrated sulfuric acid storage tank is also connected on mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920132421.8U CN209428154U (en) | 2019-01-25 | 2019-01-25 | A kind of production system of bodied ferric sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920132421.8U CN209428154U (en) | 2019-01-25 | 2019-01-25 | A kind of production system of bodied ferric sulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209428154U true CN209428154U (en) | 2019-09-24 |
Family
ID=67977403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920132421.8U Active CN209428154U (en) | 2019-01-25 | 2019-01-25 | A kind of production system of bodied ferric sulfate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209428154U (en) |
-
2019
- 2019-01-25 CN CN201920132421.8U patent/CN209428154U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103073163B (en) | Treatment and sludge reduction device and method of de-sizing wastewater | |
| CN109502655A (en) | A kind of production technology of bodied ferric sulfate | |
| CN206089281U (en) | Steel industry sulphuric acid pickling liquid waste's processing recovery system | |
| CN112110465A (en) | Preparation method of polyaluminium chloride for polyaluminium chloride flocculating agent | |
| CN105036404A (en) | Zero discharge treatment method for acid wastewater generated by acid pickling and purification of quartz sand powder or feldspar sand powder | |
| CN105502842B (en) | The waste water Fenton oxidation life assemblage processing method and its device that a kind of sludge circulation utilizes | |
| CN207108517U (en) | A kind of pyrite slag prepares the device of polymerization iron sulfate water-purifying agent | |
| CN209428154U (en) | A kind of production system of bodied ferric sulfate | |
| CN101628928B (en) | Producing technology of turmetic produced saponin | |
| CN102153224A (en) | Treatment technology for industrial sewage from sodium carboxymethylcellulose | |
| CN104803522B (en) | A kind of processing method of high sodium fluoride waste | |
| CN113816526B (en) | Water quenching water recycling treatment process for cold rolling continuous annealing unit | |
| CN108946779A (en) | A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride | |
| CN104445724A (en) | Device for recycling high chlorine wastewater generated during production of polyvinyl chloride by calcium carbide method and application method thereof | |
| CN109818099B (en) | Waste sulfuric acid recovery and regeneration system and method | |
| CN106396187A (en) | Cyanide wastewater treating and recycling method | |
| CN209411966U (en) | The processing system of acid heavy metal wastewater | |
| CN106673269A (en) | Nickel-containing wastewater treatment system | |
| CN113105032A (en) | Method and device for treating heavy metals and total phosphorus in waste water of incineration line | |
| CN206570129U (en) | Nickel-containing waste water processing system | |
| CN102153223A (en) | Sodium carboxymethylcellulose industrial sewage recycling device | |
| CN106007047A (en) | Device and method for treating black water discharged from coal gasification process | |
| CN206654798U (en) | Stainless steel acid cleaning waste water processing system | |
| CN110436426A (en) | The system and method for phosphorous fluoride wastewater treatment coproduction phosphoric acid | |
| CN109970276A (en) | A kind of recirculated cooling water near-zero release system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |