CN109437960A - Utilize the method for water treatment agent polyaluminium chloride waste residue preparing ceramsite - Google Patents
Utilize the method for water treatment agent polyaluminium chloride waste residue preparing ceramsite Download PDFInfo
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- CN109437960A CN109437960A CN201811600236.3A CN201811600236A CN109437960A CN 109437960 A CN109437960 A CN 109437960A CN 201811600236 A CN201811600236 A CN 201811600236A CN 109437960 A CN109437960 A CN 109437960A
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- polyaluminium chloride
- waste residue
- chloride waste
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The present invention provides a kind of method using water treatment agent polyaluminium chloride waste residue preparing ceramsite, and step includes that de- Cl is carried out to the water treatment agent polyaluminium chloride‑Processing obtains de- Cl‑Treatment fluid and mixing mud are staticly settled the mixing mud, screening process, and bottom particle, middle layer particle and upper layer mud are obtained；The upper layer mud obtains mud cake after being press-filtered out clear liquid, be (80~100): (0~20) according to mass parts ratio: the mud cake and biochemical sludge, flyash are carried out mixing granulation by the ratio of (0~20), obtain pellet to be burnt, then the pellet to be burnt is fired at a temperature of temperature is 1000 DEG C~1300 DEG C, obtains haydite after being cooled to room temperature.The haydite interior tissue produced by this method is uniform, water treatment agent polyaluminium chloride residue resource can be made full use of to can solve the problem of biochemical sludge arbitrarily stacks pollution environment again, also uses the heat of combustible component in biochemical sludge.This method step is easy, is easy to industrialization promotion.
Description
Technical field
The present invention relates to water purification agent field, especially a kind of side using water treatment agent polyaluminium chloride waste residue preparing ceramsite
Method.
Background technique
Haydite is a kind of lightweight aggregate of production foamed in rotary kiln.It has spherical shape, and surface is smooth and hard
Firmly, internal that honeycomb is presented, have the characteristics that density is small, thermal conductivity is low, intensity is high.In refractories industry, haydite is mainly used
In the aggregate, haydite concrete, ceramic grain filter etc. of making fireclay insulating refractory.It is divided according to raw material sources, haydite can be divided into aluminium alum
Native ceramsite sand, leca, haydites of book structure, garbage ceramsites, coal gangue haydite, biological sludge haydite, river bed sand & ceramsite, flyash
Haydite；It is divided according to intensity, haydite can be divided into high-strength ceramic granule and ordinary ceramsite；Baking ceramsite can be divided into according to preparation process and exempted from
Burn haydite.As haydite new quality, new application are continually developed, its ratio in other aspects will be gradually increased.
The production of China's polyaluminium chloride has reached 2,000,000 tons at present.Domestic polyaluminium chloride main production is
The use of aluminium hydroxide and calcium aluminate powder for water treatment agent is raw material, wherein using calcium aluminate powder can generate in process of production to
The lime scum (polyaluminium chloride lime scum) of few 15% (with over dry restatement).Although this part residue is considered as one in management
As solid waste, but as estate planning work in every deepens continuously and Chinese coagulant industry is constantly expanded production, it at
For one kind " burden " of manufacturing enterprise.Aluminium-containing sludge how is utilized and disposes to face jointly as domestic polyaluminium chloride manufacturer
Project.
Residue and calcium carbonate can be produced for polyaluminium chloride by specifically disclosing application No. is 201610084948.9 patent
Be uniformly mixed with aluminium ash, processing is pulverized and sieved after being fired to be made it is a kind of with loose porous channel, similar haydite and
Can as defluorinating agent carry out using thinking.Specifically disclosing application No. is the patent of 201210359131.X can use sewage
Processing waste residue carrys out preparing ceramsite by high temperature sintering in iron ore waste residue and clay.But the above method is required to produce to polyaluminium chloride
New chemical component is added in residue or uses new resource, can not fully achieve the theory of " treatment of wastes with processes of wastes against one another ".
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, a kind of water treatment agent polyaluminium chloride waste residue is utilized to provide
The method of preparing ceramsite.
To achieve the goals above, the technical scheme adopted by the invention is that: it is a kind of useless using water treatment agent polyaluminium chloride
The method of slag preparing ceramsite, specifically includes the following steps:
De- Cl-Processing carries out de- Cl to water treatment agent polyaluminium chloride waste residue-Processing obtains de- Cl-Treatment fluid and mixed soil
Slurry；
Stratification carries out the mixing mud to staticly settle layered shaping, obtain particle containing bottom, middle layer particle and
The mixture of upper layer mud；
Waste residue separation successively isolates the middle layer particle from the mixture of particle containing bottom, middle layer particle and upper layer mud
With the upper layer mud；Upper layer mud obtains mud cake after being press-filtered out clear liquid；
Mixing granulation is (80~100): (0~20) according to mass parts ratio: the ratio of (0~20) is by the mud cake and life
Change sludge, flyash are mixed, are granulated, and pellet to be burnt is obtained；
Molding, which is fired, is fired the pellet to be burnt at a temperature of temperature is 1000 DEG C~1300 DEG C, is cooled to room temperature
After obtain haydite.
Based on above-mentioned, the mass parts ratio of the mud cake and the biochemical sludge and the flyash three be (80~
90): (5~10): (5~10).
Based on above-mentioned, the mass parts ratio of the mud cake and the biochemical sludge and the flyash three be 17:(1~
2): (1~2).
Based on above-mentioned, the mass parts ratio of the mud cake and the biochemical sludge and the flyash three are 17:2:1.
Based on above-mentioned, in the molding the firing step, to the temperature that the pellet to be burnt is fired be 1100 DEG C~
1200 DEG C, the firing time be 30min~60min.
Based on above-mentioned, the de- Cl-Processing step specifically includes: carrying out first to the water treatment agent polyaluminium chloride waste residue
It is useless to obtain the water treatment agent polyaluminium chloride of water treatment agent polyaluminium chloride waste residue of the partial size greater than 15mm and partial size less than 15mm for roughing
Slag；Then the water treatment agent polyaluminium chloride waste residue using differential pulverizer by partial size greater than 15mm is ground into partial size less than 15mm's
Water treatment agent polyaluminium chloride waste residue, then using discongest device to after roughing and by smashed partial size less than 15mm
Water treatment agent polyaluminium chloride waste residue successively carries out first wash and takes off Cl-It handles and utilizes lye to carry out alkali cleaning and take off Cl-Processing, obtains
To the de- Cl-Treatment fluid and the mixing mud.
Based on above-mentioned, the de- Cl-Processing step specifically includes: carrying out first to the water treatment agent polyaluminium chloride waste residue
It is useless that roughing obtains the water treatment agent polyaluminium chloride of water treatment agent polyaluminium chloride waste residue of the partial size greater than 15mm and partial size less than 15mm
Slag；Water treatment agent polyaluminium chloride waste residue of the partial size greater than 15mm is ground at water of the partial size less than 15mm using differential pulverizer
Manage agent polyaluminium chloride waste residue, then using discongest device to after roughing with by smashed partial size less than 15mm water at
Reason agent polyaluminium chloride waste residue successively carries out first wash and takes off Cl-Processing, alkali cleaning take off Cl-Processing and second wash take off Cl-Place
Reason, obtains the de- Cl-Treatment fluid, the mixing mud and secondary water lotion.
Based on above-mentioned, the method using water treatment agent polyaluminium chloride waste residue preparing ceramsite further includes recycling described two
Secondary water lotion is collected in washing basin, then using the secondary water lotion in washing basin as to the water treatment agent polychlorostyrene after screening
Change waste slag of aluminum particle and carries out the de- Cl of first wash-Water source when processing.
Based on above-mentioned, controlling the lye mass percentage concentration is 8%~15%.Specifically, the concentration of the lye is
It is specifically as follows 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15% etc..The concentration of the lye is too low, will cause water
Inorganic agent polyaluminium chloride waste residue dechlorination is incomplete；The excessive concentration of the lye can then seriously affect the subsequent step of de- Cl- processing
Suddenly, therefore, the concentration of the lye is limited to 8%~15%.
Based on above-mentioned, the lye is the mixing of one or both of sodium hydroxide solution, calcium hydroxide solution.
Wherein, raw material used by method provided by the present invention is solid waste.
Flyash in raw material, is the fine ash that catching is got off from the flue gas after coal combustion, flyash be coal-burning power plant or
The primary solids waste of chemical fertilizer factory's discharge.With the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year, at
For one of biggish industrial residue of the current discharge capacity in China.A large amount of flyash is untreated, will generate fugitive dust, pollutes atmosphere；
Silt up if being discharged into water system and will cause river, and toxic chemical substance therein can also cause damages to human body and biology.
Biochemical sludge in raw material is then common in urban sewage, medical institutions' filth disposal and biochemistry scientific research institution
Human and animal excreta, clinical waste and biochemistry waste material of generation etc., (helminth is such as the bacterium contained, virus, harmful microorganism
Amoeba, blood fluke etc.) etc. harmful substances breed be likely to result in pestilence under appropriate circumstances, very big shadow is caused to environment
It rings.
Calcium aluminate powder and hydrochloric acid or three when water treatment agent polyaluminium chloride waste residue in raw material is production aluminium polychloride (PAC)
Liquor alumini chloridi remaining solid slag after being reacted.The polyaluminium chloride liquid that usually every production 1t mass fraction is 10% is just
About 150kg waste residue can be generated.For the treating method that water treatment agent polyaluminium chloride waste residue uses at present for landfill method, this not only causes ring
Border pollution, and waste a large amount of resource.
Therefore, the method provided by the invention using water treatment agent polyaluminium chloride waste residue preparing ceramsite does not need to add newly
Chemical component uses new resource, realizes the theory of " treatment of wastes with processes of wastes against one another ".
Specifically, the effect of the biochemical sludge in raw material in systems has: being present in the organic matter in biochemical sludge in height
Gas can be generated in warm sintering procedure, promoted to generate stomata inside haydite, reduced haydite density, and increase its specific surface area obviously
Greatly, rough surface, strong adsorption, bioaffinity is good, more can be suitably used for sewage treatment field.Biochemical sludge may act as firing simultaneously
Expect role, reduces the dosage of liquefied petroleum gas.
The effect of flyash in systems in raw material has: enabling to raw material oneself to provide heat source, has lacked liquefied petroleum
The dosage of gas increases the intensity of haydite.
Compared with prior art, the present invention has the characteristics that prominent and significant progress, specifically, provided by the invention
Method using water treatment agent polyaluminium chloride waste residue preparing ceramsite mainly includes that de- Cl is carried out to the water treatment agent polyaluminium chloride-
Processing obtains de- Cl-Treatment fluid and mixing mud are staticly settled the mixing mud, screening process, and upper layer mud is obtained
Slurry, upper layer mud obtain mud cake after being press-filtered out clear liquid；Then the mud cake and biochemical sludge, flyash are subjected to mixing granulation
And be fired at a temperature of 1000 DEG C~1300 DEG C, haydite is obtained after being cooled to room temperature.The raw material that this method is utilized is
Solid waste does not need additionally to add new resource, the haydite for fully achieving the purpose of " treatment of wastes with processes of wastes against one another ", while producing at
Product interior tissue is uniform, specific surface area significantly increases, and rough surface, strong adsorption, bioaffinity is good, more can be suitably used for sewage
Process field.This method step is easy, is easy to industrialization promotion.
Further, this method is carrying out de- Cl to water treatment agent polyaluminium chloride waste residue-It is polychloride using liquid when processing
Aluminium property soluble easily in water carries out de- Cl to it using water and lye-Processing, substantially simple physics take off Cl-Method, no
It needs to consume heat source and can also to the full extent dissolve back liquid polyaluminium chloride remaining in water treatment agent polyaluminium chloride waste residue
It receives.
Further, this method further includes water lotion when secondary washing process is separately recovered and when as first wash
Water source the step of.The step is increasing de- Cl-Effect makes water treatment agent polyaluminium chloride waste residue take off Cl-Effect is more thorough
Meanwhile water resource is also ad save, it reduces costs, realizes recycling for resource.
Further, this method further includes carrying out first with differential pulverizer to the water treatment agent polyaluminium chloride waste residue
It crushes, takes full advantage of the rotational speed difference in differential pulverizer between two breaker rolls, artificially enhance " sliding in shattering process
Poor phenomenon " extends contact and residence time that water treatment agent polyaluminium chloride waste residue is crushed between cog with breaker roll, overcomes at water
Slipping phenomenon when agent polyaluminium chloride waste residue crushes is managed, so that entire shattering process becomes more perfect, effective, so as to shorten
Grinding time and granule surface area is increased, water treatment agent polyaluminium chloride waste particle is come into full contact with water and lye,
Washing and alkaline cleaning procedure are accelerated, de- Cl is shortened-Handle the time.
Further, this method, which uses, discongests device to the water treatment agent polyaluminium chloride after crushing, screening process screening
Waste particle successively carries out first wash and takes off Cl-Processing, alkali cleaning take off Cl-Processing and second wash take off Cl-Processing, so that water
Inorganic agent polyaluminium chloride waste particle can be thoroughly mixed with water lotion and lye, accelerate washing and alkaline cleaning procedure, be shortened
De- Cl-Handle the time.
Detailed description of the invention
Fig. 1 is the technique for the method using water treatment agent polyaluminium chloride waste residue preparing ceramsite that the embodiment of the present invention 1 provides
Flow chart.
Fig. 2 is the technique for the method using water treatment agent polyaluminium chloride waste residue preparing ceramsite that the embodiment of the present invention 2 provides
Flow chart.
Specific embodiment
Following embodiment is process object with the existing water treatment agent polyaluminium chloride waste residue in Gongyi City.
Henan Gongyi is the water purification agent production base of largest domestic, and yield accounts for 60% or more of the whole nation, reaches 1,200,000
Ton/year.Because the production technology of most of producers is bauxite+calcium aluminate+hydrochloric acid technique, the wet basis waste residue generated every year
Also at million tons or more.Past water purification agent waste residue is arbitrarily toppled over mostly, is filled, and serious waste pollution is caused.With ring
Guaranteed request is more and more tighter, and how water treatment agent polyaluminium chloride waste residue realizes that harmless treatment is the bottle for restricting water purification agent industry development
Neck.
Analysis of experiments, 8 sample chemical components of selection are carried out to the existing water treatment agent polyaluminium chloride waste residue in Gongyi City
As shown in table 1, from table 1 it follows that Gongyi City it is existing water treatment agent polyaluminium chloride waste residue chemical component it is close, contain matter
Amount percentage mean value is 22.05% moisture, 22.31% Al2O3, 38.9% SiO2, 1.97% TiO2, 0.39%
MgO, 3.04% CaO, 1.74% Fe2O3.Simultaneously as Gongyi City's municipal sludge yield is larger, convenient for gathering materials on the spot.
1 water treatment agent polyaluminium chloride waste residue chemical component table of table
| Sample number | Moisture % | Al2O3% | SiO2% | TiO2% | MgO% | CaO% | Fe2O3% |
| 1 | 33 | 15.61 | 37.12 | 1.82 | 0.15 | 1.88 | 1.21 |
| 2 | 31.62 | 17.92 | 29.17 | 2.59 | 0.63 | 3.46 | 2.5 |
| 3 | 26.8 | 24.4 | 40.92 | 1.5 | 0.4 | 3.78 | 1.5 |
| 4 | 8 | 25.6 | 41.7 | ||||
| 5 | 10 | 28.12 | 43.92 | ||||
| 6 | 15.56 | 26.01 | 39.72 | ||||
| 7 | 22.58 | 21.04 | 36.46 | ||||
| 8 | 28.86 | 19.76 | 42.15 | ||||
| Mean value | 22.05 | 22.31 | 38.90 | 1.97 | 0.39 | 1.74 |
Embodiment 1
The present embodiment provides a kind of methods using water treatment agent polyaluminium chloride waste residue preparing ceramsite, as shown in Figure 1, specifically
The following steps are included:
De- Cl-Processing using discongest device to water treatment agent polyaluminium chloride waste residue progress water elution Cl-Handle and utilize lye
Carry out de- Cl-Processing obtains de- Cl-Treatment fluid and mixing mud；The mass percentage concentration of the lye is 10%；The lye
For sodium hydroxide solution；The device of discongesting is hydrabrusher；
Stratification carries out the mixing mud to staticly settle layered shaping, obtain particle containing bottom, middle layer particle and
The mixture of upper layer mud；
Waste residue separation successively isolates the middle layer particle from the mixture of particle containing bottom, middle layer particle and upper layer mud
With the upper layer mud；Upper layer mud obtains mud cake after being press-filtered out clear liquid；
Mixing granulation carries out the mud cake and biochemical sludge, flyash according to the ratio that mass parts ratio is 80:20:20
Mixing is granulated, and obtains pellet to be burnt；
Molding, which is fired, is fired the pellet to be burnt at a temperature of temperature is 1300 DEG C, is made pottery after being cooled to room temperature
Grain.
Embodiment 2
The present embodiment provides a kind of methods using water treatment agent polyaluminium chloride waste residue preparing ceramsite, as shown in Fig. 2, specifically
The following steps are included:
De- Cl-Processing carries out roughing to water treatment agent polyaluminium chloride waste residue first and obtains the water treatment agent that partial size is greater than 15mm
Polyaluminium chloride waste residue and partial size are less than the water treatment agent polyaluminium chloride waste residue of 15mm；Then partial size is greater than using differential pulverizer
The water treatment agent polyaluminium chloride waste residue of 15mm is ground into the water treatment agent polyaluminium chloride waste residue that partial size is less than 15mm, then using thin
Solution device successively carries out the to the water treatment agent polyaluminium chloride waste residue after roughing and by smashed partial size less than 15mm
Water elution Cl-Processing, alkali cleaning take off Cl-Processing and second wash take off Cl-Processing, obtains the de- Cl-It is treatment fluid, described
Mixing mud and secondary water lotion；It recycles the secondary water lotion to be collected in washing basin, then using secondary in washing basin
Water lotion carries out the de- Cl of first wash as to the water treatment agent polyaluminium chloride waste particle after screening-Water source when processing；
Stratification carries out the mixing mud to staticly settle layered shaping, obtain particle containing bottom, middle layer particle and
The mixture of upper layer mud；
Waste residue separation successively isolates the middle layer particle from the mixture of particle containing bottom, middle layer particle and upper layer mud
With the upper layer mud；Upper layer mud obtains mud cake after being press-filtered out clear liquid；
Mixing granulation according to the ratio that mass parts ratio is 100:15:11 by the mud cake and biochemical sludge, flyash into
Row mixing granulation obtains pellet to be burnt；
Molding, which is fired, is fired 30min to the pellet to be burnt at a temperature of temperature is 1300 DEG C, after being cooled to room temperature
Obtain haydite.
Embodiment 3
The present embodiment provides a kind of method using water treatment agent polyaluminium chloride waste residue preparing ceramsite, step and embodiment
Step in 2 is roughly the same, the difference is that:
The mass parts ratio of mud cake described in the present embodiment and biochemical sludge and flyash three are 85:10:5；To described
The temperature that pellet to be burnt is fired is 1300 DEG C, firing time 30min.
Embodiment 4
The present embodiment provides a kind of method using water treatment agent polyaluminium chloride waste residue preparing ceramsite, step and embodiment
Step in 2 is roughly the same, the difference is that:
The mass parts ratio of mud cake described in the present embodiment and biochemical sludge and flyash three are 17:1:2；To it is described to
Burn the temperature that is fired of pellet be 1200 DEG C, firing time 40min.
It is used as haydite in the various embodiments described above and prepares the biochemical sludge of raw material and derive from Gongyi City's municipal sludge, due to dirt
Mud contains a large amount of organic matter, and a large amount of stomatas are formed after high temperature cabonization, is conducive to haydite production.In addition, due to sludge itself
With certain calorific value, reduce the firing rate of sintering procedure, utilizes water treatment agent polyaluminium chloride waste residue system to realize
Achieve the purpose that " treatment of wastes with processes of wastes against one another " on raw material when taking haydite convenient for gathering materials on the spot.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
Invention is explained in detail referring to preferred embodiment for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of method using water treatment agent polyaluminium chloride waste residue preparing ceramsite, specifically includes the following steps:
De- Cl-Processing is to water treatment agent polyaluminium chloride waste residue into de- Cl-Processing obtains de- Cl-Treatment fluid and mixing mud；
Stratification carries out the mixing mud to staticly settle layered shaping, obtains particle containing bottom, middle layer particle and upper layer
The mixture of mud；
The middle layer particle is successively isolated in waste residue separation from the mixture of particle containing bottom, middle layer particle and upper layer mud
With the upper layer mud；The upper layer mud obtains mud cake after being press-filtered out clear liquid；
Mixing granulation is (80~100): (0~20) according to mass parts ratio: the ratio of (0~20) is by the mud cake and biochemical
Sludge, flyash are mixed, are granulated, and pellet to be burnt is obtained；
Molding, which is fired, is fired the pellet to be burnt at a temperature of temperature is 1000 DEG C~1300 DEG C, after being cooled to room temperature
Obtain haydite.
2. the method according to claim 1 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that institute
The mass parts ratio for stating mud cake and the biochemical sludge and the flyash three is (80~90): (5~10): (5~10).
3. the method according to claim 2 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that institute
The mass parts ratio for stating mud cake and the biochemical sludge and the flyash three is 17:(1~2): (1~2).
4. the method according to claim 3 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that institute
The mass parts ratio for stating mud cake and the biochemical sludge and the flyash three is 17:2:1.
5. the method according to claim 4 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that
It is 1100 DEG C~1200 DEG C, firing time 30 to the temperature that the pellet to be burnt is fired in the molding the firing step
The min of min~60.
6. the method according to claim 5 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that institute
State de- Cl-Processing step specifically includes:
Roughing is carried out to the water treatment agent polyaluminium chloride waste residue first, it is polychloride greater than the water treatment agent of 15 mm to obtain partial size
The water treatment agent polyaluminium chloride waste residue of waste slag of aluminum and partial size less than 15 mm；Then partial size is greater than by 15 mm using differential pulverizer
Water treatment agent polyaluminium chloride waste residue be ground into water treatment agent polyaluminium chloride waste residue of the partial size less than 15 mm, then using discongesting
Device successively carries out first to after roughing and by water treatment agent polyaluminium chloride waste residue of the smashed partial size less than 15 mm
Secondary water elution Cl-It handles and utilizes lye to carry out alkali cleaning and take off Cl-Processing, obtains the de- Cl-Treatment fluid and the mixing mud.
7. the method according to claim 5 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that institute
State de- Cl-Processing step specifically includes:
Roughing is carried out to the water treatment agent polyaluminium chloride waste residue first and obtains the water treatment agent polyaluminium chloride that partial size is greater than 15mm
Waste residue and partial size are less than the water treatment agent polyaluminium chloride waste residue of 15mm；Then partial size is greater than to the water of 15mm using differential pulverizer
Inorganic agent polyaluminium chloride waste residue is ground into the water treatment agent polyaluminium chloride waste residue that partial size is less than 15mm, then using discongesting device pair
Water treatment agent polyaluminium chloride waste residue after roughing and by smashed partial size less than 15mm successively carries out first wash
De- Cl-Processing, alkali cleaning take off Cl-Processing and second wash take off Cl-Processing, obtains the de- Cl-Treatment fluid, the mixing mud
With secondary water lotion.
8. the method according to claim 7 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that it
It further include that the recycling secondary water lotion is collected in washing basin, then using the secondary water lotion in washing basin as to screening
Water treatment agent polyaluminium chloride waste particle afterwards carries out first wash and takes off Cl-Water source when processing.
9. special according to the described in any item methods using water treatment agent polyaluminium chloride waste residue preparing ceramsite of claim 6~8
Sign is that the lye mass percentage concentration is 8%~15%.
10. the method according to claim 9 using water treatment agent polyaluminium chloride waste residue preparing ceramsite, which is characterized in that
The lye is the mixing of one or both of sodium hydroxide solution, calcium hydroxide solution.
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