CN110482825A - A kind of resource utilization method and paper mill production system of paper mill paper mill sludge - Google Patents
A kind of resource utilization method and paper mill production system of paper mill paper mill sludge Download PDFInfo
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- CN110482825A CN110482825A CN201910810568.2A CN201910810568A CN110482825A CN 110482825 A CN110482825 A CN 110482825A CN 201910810568 A CN201910810568 A CN 201910810568A CN 110482825 A CN110482825 A CN 110482825A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
Abstract
The present invention relates to a kind of resource utilization method of paper mill paper mill sludge and paper mill production systems.Method includes the following steps: it is 1) that paper mill sludge is dry, dewatered sludge is made；2) boiler combustion is put into using dewatered sludge as auxiliary fuel, main fuel used in the boiler is only biomass fuel, clinker is generated after the main fuel and aid fuel combustion, clinker is the mixture of the tailings containing calcium oxide and plant ash；3) clinker is sieved, obtains the tailings containing calcium oxide；There are two types of screening modes, and one is the sieves for using setting mesh number, screens out the plant ash in clinker and leaves tailings, another kind is with pneumatic separating, and the plant ash blown off in clinker leaves tailings；4) paper grade (stock) pearl filler is prepared with tailings.This method uses dewatered sludge and biomass fuel to make to fire, the purity is high of tailings more simple around the slag composition of generation without using fossil energies such as coal, heavy oil as boiler oil, realizes the high-quality recycling of pearl filler.
Description
Technical field
The invention belongs to the resource utilization fields of paper mill sludge, and in particular to a kind of recycling of paper mill paper mill sludge
Utilize method and paper mill production system.
Background technique
The every annual meeting of paper industry generates a large amount of solid waste, while because paper-making process needs to mention using a large amount of steam
Bulk gas waste can be also generated for the boiler of steam.The processing of solid waste and gas waste has become obstruction papermaking
The major issue that industry further develops.
Solid waste is mainly the cinder that paper mill sludge and boiler generate, and the main component of paper mill sludge is paper-making process
Filler (such as calcium carbonate), the paper-making fibre of middle addition.The current processing method of paper mill sludge is mainly landfill method and incineration method,
Landfill method can cause secondary pollution to the environment around landfill yard, and incineration method is only sewage sludge harmlessness, minimizing processing, not
Paper mill sludge can be recycled.
Gaseous exhaust object is mainly generated by coal-burning boiler, and main component is carbon dioxide, sulphur compound, nitrogen compound
Deng generally needing desulfuring and denitrifying apparatus to be just able to achieve the qualified discharge of gas.
The Chinese invention patent application of Publication No. CN101671101A discloses a kind of paper mill sludge recycling treatment side
Method and system, method are first to carry out mechanical dehydration to paper mill sludge, discongest granulation and secondary drying, then burning that recycle exhaust gas useless
The low temperature waste gas that low temperature clinker after secondary drying is dried by separation and tentatively is reacted, finally extracts and send after by heat
Treatment process.The invention realizes the recycling to the energy in paper mill sludge and inorganic filler, has certain utilization of resources
Effect.But since boiler has used coal as fuel, the low temperature clinker after secondary drying still can generate useless when adding water to separate
Slag, while cannot also be made full use of by papermaking enterprise because containing a large amount of impurities in the filler of later period recycling.
Summary of the invention
The purpose of the present invention is to provide a kind of resource utilization methods of paper mill paper mill sludge, to solve existing method
Still there is the problem of waste residue generation, recycling filler contains more impurity.
Second object of the present invention is to provide a kind of paper mill production system, to solve the resource reclaim of existing system
Complex procedures, the quality for recycling product have problem to be hoisted.
To achieve the above object, the technical solution of the resource utilization method of paper mill paper mill sludge of the invention is:
A kind of resource utilization method of paper mill paper mill sludge, comprising the following steps:
1) paper mill sludge is dry, dewatered sludge is made；
2) boiler combustion is put into using dewatered sludge as auxiliary fuel, main fuel used in the boiler is only biomass fuel
Expect, generates clinker after the main fuel and aid fuel combustion, clinker is the mixture of the tailings containing calcium oxide and plant ash；
3) clinker is sieved, obtains the tailings containing calcium oxide；There are two types of screening modes, and one is use setting mesh
Several sieves screens out the plant ash in clinker and leaves tailings, and another kind is with pneumatic separating, and the plant ash blown off in clinker leaves
Tailings；
4) paper grade (stock) pearl filler is prepared with tailings.
The resource utilization method of paper mill paper mill sludge of the invention, uses dewatered sludge and biomass fuel as boiler
Fuel makes to fire more simple around the slag composition of generation without using the fossil energies such as coal, heavy oil, and clinker is separated into after screening
Plant ash and main component are the tailings of calcium oxide, and the purity is high of tailings is, it can be achieved that the high-quality of pearl filler recycles.
To promote main fuel and auxiliary fuel efficient burning, it is preferred that in step 1), by the main fuel and auxiliary fuel
Boiler combustion is put into after being pre-mixed again.
For the utilization efficiency for further increasing heat in flue gas, it is preferred that described by the dry packet of paper mill sludge in step 1)
It includes and dehydration successively is carried out to paper mill sludge and is dried using paper mill sludge of the flue gas to dehydration, the flue gas is by the boiler
In fuel combustion generate.
It is dried using smoke sludge, realizes humidification, dedusting and the cooling of flue gas, created for subsequent reaction process
Good condition is made.
To achieve the effect that good drying, so as to improve the combustion efficiency of the sludge after drying, it is preferred that step 1)
In, it is 65% or more by dehydration of papermaking sludge to mass dryness fraction, is 85-90% through subsequent drying to mass dryness fraction.Utilize existing sludge dewatering
Equipment and conventional sludge drier, which can facilitate, realizes the above mass dryness fraction requirement.
Preparing calcium carbonate using tailings can refer to related art, to improve production efficiency, it is preferred that in step 4),
It is described to prepare paper grade (stock) pearl filler the following steps are included: being reacted with tailings and water or aqueous solution with tailings, produce lime
Water；The flue gas that limewash and the boiler generate is subjected to acid-base neutralization reaction, the flue gas is by dewatered sludge and biomass fuel
Burning generates, and the carbon dioxide reaction in the limewash and the flue gas obtains the mixed liquor containing calcium carbonate, is separated by solid-liquid separation, obtains
To paper grade (stock) pearl filler.Since the purity of tailings is higher, during reacting production limewash with water, no waste residue is produced
It is raw.Sulfureous in flue gas compound, the content of nitrogen compound are extremely low, and main component is carbon dioxide, can after flue gas and limewash reaction
The high pearl filler of quality is generated, so that circulation is in paper-making process.
For the reaction efficiency for further increasing limewash and flue gas, it is preferred that in step 2), the acid-base neutralization reaction is
Using from bottom to top flue gas and top-down lime water drop carry out haptoreaction.Acid-base neutralization can be made using this kind of mode
Reaction is reacted on liquid-vapor interface, and then reaction efficiency can be improved.
To further realize recycling for water, it is preferred that be described contain with gained liquid after separation of solid and liquid in step 2)
Aqueous solution.The water consumption that can reduce this method with upper type is utilized, keeps the environment-friendly type of method and economy more prominent.
To improve efficiency of combustion, it is preferred that the biomass fuel is using agriculture and forestry organic waste material as biomass made of raw material
Shaped fuel.Corresponding agriculture and forestry organic waste material such as stalk, sawdust etc., the preparation of biomass molding fuel can refer to related existing skill
Art generally comprises the processes such as crushing, mixing, extruding, drying, and blocky, granular clean fuel is made.Biomass fuel and
The proportion of dewatered sludge meets the calorific value demand of boiler, can be adjusted according to the case where biomass fuel.
Technical solution used by paper mill production system of the invention is:
A kind of paper mill production system, including paper making equipment；Boiler has exhanst gas outlet and slag outlet；Dewatered sludge system
Dewatered sludge is made in standby equipment, the paper mill sludge of the pulpous state for discharging paper making equipment；The boiler also has mixed for being added
The fuel inlet of the dewatered sludge and biomass fuel that get togather, or with the auxiliary fuel input for dewatered sludge to be added and be used for
The fuel inlet of biomass fuel is added；
Further include clinker screening plant, is sieve or wind sorting equipment, for clinker to be sieved into plant ash and tail
Slag；
Pearl filler production equipment produces pearl filler using tailings.
Paper mill production system provided by the invention, the recycling of the papermaking filler and sludge energy benefit in realizing paper mill
On the basis of, no secondary residue is generated, and the filler impurity of recycling is few, and the pollutant component in water is few, improves paper mill
The quality of resource utilization efficiency and recycling product.
For the efficient production and the minimum discharge of flue gas for further realizing calcium carbonate, it is preferred that the pearl filler
Production equipment includes limewash process units, for tailings and water reaction production limewash；Neutralization reaction device, for flue gas and
Product slurry of the limewash reaction production containing calcium carbonate, neutralization reaction device have gas inlet, the gas inlet and pot
The exhanst gas outlet of furnace is connected by flue, is additionally provided with offgas outlet on neutralization reaction device；And filter device, it is used for
Filtering product slurry produces paper grade (stock) pearl filler.
For the energy loss for being further reduced drying sludge process, while realizing and the dedusting of flue gas, humidification and acidification are imitated
Fruit, it is preferred that the dewatered sludge Preparation equipment includes sludge drier, and sludge drier setting is in this connection and instead
On the flue for answering the gas inlet of device and the exhanst gas outlet of boiler, sludge drier has into flue gas mouth and goes out
Flue gas mouth is connected into flue gas mouth with the exhanst gas outlet of boiler, and flue gas outlet is connected with the gas inlet of neutralization reaction device.
For the drying efficiency for further increasing sludge, it is preferred that the dewatered sludge Preparation equipment includes device for dehydrating sladge waste,
For by the dehydration of papermaking sludge of pulpous state；The crusher that dewatered sludge is broken up；And sludge drier.
Detailed description of the invention
Fig. 1 is the process flow chart of the resource utilization method of the paper mill paper mill sludge of the embodiment of the present invention 1；
Fig. 2 is the system diagram of the paper mill production system of the embodiment of the present invention 3.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
One, the specific embodiment of the resource utilization method of paper mill paper mill sludge of the invention
Embodiment 1
The resource utilization method of the paper mill paper mill sludge of the present embodiment, process flow chart is as described in Figure 1, specific to wrap
Include following steps:
1) water treatment sludge generated in the plain boiled water sludge and process of paper-making wastewater treatment of white water chest generation is utilized into folded spiral shell
Formula dewaterer is dehydrated, and is obtained the dewatered sludge (forming mud cake) that dehydration mass dryness fraction reaches 65% or more, will be formed the de- of mud cake
Sewage sludge is broken up by rotary disperser, dry subsequently into chain-plate type drier, and the drying sludge broken up to mass dryness fraction is reached
To 85-90%, dewatered sludge is obtained.
Waste water, that is, the papermaking deviate from during the sheet forming of plant fiber wet papermaking from wire-cloths, press section is white
Water, mthod of white water from paper making are stored in white water chest, and mthod of white water from paper making a part is recycled in the paper making process, and another part is as waste water
Drain into water treatment system.Plain boiled water sludge mentions white water chest plain boiled water sludge rich in the fiber and inorganic filler (calcium carbonate) that are lost
Pre-treatment can reduce sewage treatment and meet, and reduce the injected volume of water treatment system chemicals.Water treatment sludge is at paper waste
The biological sludge generated during reason.
2) dewatered sludge and the biomass molding fuel made of stalk are mixed and (does not use coal, heavy oil as boiler oil
Etc. fossil energies), investment boiler burns, and generates clinker and flue gas.The steam that boiler generates is for paper manufacturing systems and paper pulp system
System uses.
Due to having used dewatered sludge and biomass molding fuel, the main component of clinker is calcium oxide and plant ash, the two
Since density, partial size have significant difference, separation can be facilitated by conventional screening or pneumatic separating, plant ash makes as potash fertilizer
With using filter to get limewash after calcium oxide and water emulsification.
Flue gas is introduced into sludge drier, after being in contact formula drying with sludge, sludge is dried, while also realizing cigarette
Gas humidification, carbon dioxide and water after flue gas is humidified in flue gas combine or wetting, realizes the cooling and acidification of flue gas.The cigarette of acidification
Acid-base neutralization reaction occurs for gas and limewash, generates the product slurry that precipitate component is mainly calcium carbonate, product slurry is carried out
Filtering, gained calcium carbonate are recycled as papermaking filler.
The reaction of the flue gas and limewash of acidification uses water-drop reactive mode, and limewash is atomized into lime water drop
It falls from top to bottom, is in contact formula with flue gas from bottom to top and reacts, so that reaction efficiency is improved, certainly in other embodiments
In, flue gas can also be passed through in limewash and be reacted.Due to without using the fossil energies such as coal, heavy oil, sulphur in flue gas,
The ingredients such as phosphorus, nitrogen are few, and without being equipped with desulfuring and denitrifying apparatus, flue gas main component is carbon dioxide in paper mill, by with lime
Water reaction, and reduce the content of carbon dioxide, the final qualified discharge for realizing flue gas.
The liquid that product slurry filtering generates is mainly water, because containing a small amount of calcium hydroxide micro- green (green liquor),
Green liquor can be used as the reaction water reacted with tailings.
Existing paper mill to the processing of solid waste mainly with landfill or with fossil fuels such as coals mix fire around,
Secondary pollution inevitably is generated to environment, not substantive elimination pollutant.The flue gas in paper mill because carbon dioxide,
Sulphur, the content of nitrogen compound are high, also need to carry out processing ability by the exhaust treatment system of complexity such as system for desulfuration and denitration up to standard
Discharge.This processing to solid waste and flue gas is not carried out the scientific and reasonable utilization of paper mill resources of production, can not
It achieves energy-saving and emission reduction purposes.
Paper mill sludge, the boiler smoke generated by the method for the present invention above to paper mill is handled, and is had following
Effect:
(1) recycling for the inorganic matters such as filler is realized.
(2) generation without solid waste (plant ash can be used as potash fertilizer utilization) will not bring secondary pollution to environment.Benefit
With the carbon source (carbon dioxide of burning is absorbed by system) in paper mill sludge raw material, the reasonable utilization of resource is realized.
(3) type of pollutant is few in exhaust gas, content is low, without increase expensive exhaust treatment system can be realized it is ultralow
Discharge.By the selection of boiler oil and the processing of boiler slag, sulphur, nitrogen, phosphorus compound are substantially free of in generated exhaust gas
Equal pollutants, reduce the content of carbon dioxide in boiler smoke, the processing load and processing for reducing exhaust treatment system are wanted
It asks.
In short, the ingredient (predominantly calcium oxide) of tailings, the ingredient (predominantly two of flue gas can be made using the method for embodiment
Carbonoxide) it is purified, the generation without waste residue during resource utilization entire in this way, the quality of the papermaking filler recycled
It is higher；It is simple to handle obtained water-quality constituents, can be recycled；Exhaust gas realizes minimum discharge.By to paper mill related process
The comprehensive consideration of route makes the daily production process in paper mill simplify the modern production requirement for rationally more meeting energy-saving and emission-reduction.
Embodiment 2
The resource utilization method of the paper mill paper mill sludge of the present embodiment, the difference with the method for embodiment 1 are, incite somebody to action
Dewatered sludge is granulated, and the drying of dewatered sludge does not use boiler smoke, but uses other drying modes, such as electrothermal
Drier, or dry naturally.Boiler smoke is not dried dewatered sludge, but directly and in calcium carbonate preparation step
Limewash is reacted.
Two, the specific embodiment of paper mill production system of the invention
Embodiment 3
The paper mill production system of the present embodiment, as shown in Fig. 2, corresponding to the recycling benefit of above-mentioned paper mill paper mill sludge
It is filled with the embodiment 1 of method, including paper machine, white water chest, water treating pond, device for dehydrating sladge waste, sludge drier, mixing
It sets, boiler, emulsify pond, pulp production pool, acid-base neutralization tower and filter device.
Device for dehydrating sladge waste is folded spiral shell formula dewaterer.Sludge drier is sludge drying oven.In other embodiments, may be used
Sludge bale breaking equipment is added, dewatered sludge enters back into sludge drier after being dispersed, with reinforcement sludge drying effect；Sludge is beaten
It is casually arranged with standby optional crusher.The transport of solid material can also pass through transport vehicle or people by conveyer belt or screw conveyor
Work mode realizes the migration of material.
Mixing device mixes dewatered sludge and biomass molding fuel, and the outlet of mixing device passes through conveyer belt and boiler
Fuel inlet is connected, and the flue gas generated after fuel combustion is discharged by the exhanst gas outlet of boiler, fires the clinker around rear remnants by clinker
Outlet discharge.In other embodiments, the auxiliary fuel input of investment dewatered sludge can also be respectively arranged to and for putting into life
The fuel inlet of substance shaped fuel meets combustion needs by adjusting the dispensing ratio of main fuel and auxiliary fuel.
It is provided on sludge drying oven into flue gas mouth, is connected into flue gas mouth by flue with the exhanst gas outlet of boiler,
Flue gas for generating boiler, which introduces in sludge drying oven, is dried sludge, while realizing the humidification of flue gas, plays and removes
Flue gas is discharged by the flue gas outlet being arranged on sludge drying oven later in the effect of dirt and flue gas acidification.
The slag outlet of boiler is connected by the conveyer belt with vibrosieve function with emulsification pond, on a moving belt by furnace
Slag screening is tailings and plant ash, and plant ash acts on potash fertilizer after collecting, tailings enters emulsification pond and lime combination reaction occurs for water,
Emulsification pond is connected by pipeline with pulp production pool, and filter is provided on pipeline.Water supply pipe is provided on emulsification pond and pulp production pool
Road.In other embodiments, tailings and plant ash can also will be separated by pneumatic separator after clinker Temperature fall.
The flue gas outlet of sludge drying oven is connected by flue with the gas inlet of acid-base neutralization tower.Acid-base neutralization tower
Gas inlet be set to acid-base neutralization tower flue gas lower part, the upper end of acid-base neutralization tower is provided with atomizer, the atomization of atomizer
Pipeline is connected with the discharge outlet of pulp production pool, and elevator pump is additionally provided on atomization conduit.The thick liquid discharge mouth of acid-base neutralization tower and filtering fill
It sets connected, isolates paper grade (stock) filler.
Claims (9)
1. a kind of resource utilization method of paper mill paper mill sludge, which comprises the following steps:
1) paper mill sludge is dry, dewatered sludge is made；
2) boiler combustion being put into using dewatered sludge as auxiliary fuel, main fuel used in the boiler is only biomass fuel,
Clinker is generated after the main fuel and aid fuel combustion, clinker is the mixture of the tailings containing calcium oxide and plant ash；
3) clinker is sieved, obtains the tailings containing calcium oxide；There are two types of screening modes, and one is use setting mesh number
Sieve screens out the plant ash in clinker and leaves tailings, and another kind is with pneumatic separating, and the plant ash blown off in clinker leaves tail
Slag；
4) paper grade (stock) pearl filler is prepared with tailings.
2. the resource utilization method of paper mill paper mill sludge as described in claim 1, which is characterized in that, will in step 1)
The main fuel and auxiliary fuel put into boiler combustion after being pre-mixed again.
3. the resource utilization method of paper mill paper mill sludge as described in claim 1, which is characterized in that in step 1), institute
Stating paper mill sludge drying includes successively carrying out dehydration to paper mill sludge and being dried using paper mill sludge of the flue gas to dehydration,
The flue gas is generated by the fuel combustion in the boiler.
4. the resource utilization method of paper mill paper mill sludge as claimed in claim 3, which is characterized in that, will in step 1)
Dehydration of papermaking sludge to mass dryness fraction is 65% or more, and recycling flue gas drying to mass dryness fraction is 85-90%.
5. such as the resource utilization method of paper mill paper mill sludge of any of claims 1-4, which is characterized in that step
It is rapid 4) in, it is described with tailings to prepare paper grade (stock) pearl filler the following steps are included: being reacted with tailings and water or aqueous solution, it is raw
Produce limewash；The flue gas that limewash and the boiler generate is subjected to acid-base neutralization reaction, the flue gas is by dewatered sludge and biology
Matter fuel combustion generates, and the carbon dioxide reaction in the limewash and the flue gas obtains the mixed liquor containing calcium carbonate, solid-liquid
Separation, obtains paper grade (stock) pearl filler.
6. it is a kind of for implementing the paper mill production system of resource utilization method as described in claim 1, including papermaking is set
It is standby；Boiler has exhanst gas outlet and slag outlet；Dewatered sludge Preparation equipment, the papermaking of the pulpous state for discharging paper making equipment
Dewatered sludge is made in sludge；It is characterized in that, the boiler, also has for the dewatered sludge and biomass fuel mixed to be added
Fuel inlet, or enter with the auxiliary fuel input for dewatered sludge to be added and the main fuel for biomass fuel to be added
Mouthful；
Further include clinker screening plant, is sieve or wind sorting equipment, for clinker to be sieved into plant ash and tailings；
Pearl filler production equipment produces pearl filler using tailings.
7. paper mill production system as claimed in claim 6, which is characterized in that the pearl filler production equipment includes stone
Buck process units, for tailings and water reaction production limewash；Neutralization reaction device, for flue gas and limewash reaction production
Product slurry containing calcium carbonate, neutralization reaction device have gas inlet, and the exhanst gas outlet of the gas inlet and boiler is logical
It crosses flue to be connected, is additionally provided with offgas outlet on neutralization reaction device；And filter device, it is raw for filtering product slurry
Produce paper grade (stock) pearl filler.
8. paper mill production system as claimed in claim 7, which is characterized in that the dewatered sludge Preparation equipment includes that sludge is dry
Dry equipment, the sludge drier setting is in this connection and described in the exhanst gas outlet of the gas inlet of reaction unit and boiler
On flue, sludge drier has into flue gas mouth and flue gas outlet, is connected into flue gas mouth with the exhanst gas outlet of boiler, out
Flue gas mouth is connected with the gas inlet of neutralization reaction device.
9. paper mill production system as claimed in claims 6 or 7, which is characterized in that the dewatered sludge Preparation equipment includes dirt
Mud dehydration equipment, for by the dehydration of papermaking sludge of pulpous state；The crusher that dewatered sludge is broken up；And sludge is dry
Dry equipment.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671101A (en) * | 2009-09-22 | 2010-03-17 | 华南理工大学 | Resourceful treatment method of paper-making sludge and system |
| CN101838570A (en) * | 2009-03-18 | 2010-09-22 | 谢旭东 | Biomass clean fuel |
| CN103102053A (en) * | 2013-03-14 | 2013-05-15 | 东莞理文造纸厂有限公司 | Recycling method of papermaking sludge |
| US20160207778A1 (en) * | 2006-08-25 | 2016-07-21 | Robert A. Rossi | Process and system for producing commercial quality carbon dioxide from recausticizing process calcium carbonates |
-
2019
- 2019-08-29 CN CN201910810568.2A patent/CN110482825A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160207778A1 (en) * | 2006-08-25 | 2016-07-21 | Robert A. Rossi | Process and system for producing commercial quality carbon dioxide from recausticizing process calcium carbonates |
| CN101838570A (en) * | 2009-03-18 | 2010-09-22 | 谢旭东 | Biomass clean fuel |
| CN101671101A (en) * | 2009-09-22 | 2010-03-17 | 华南理工大学 | Resourceful treatment method of paper-making sludge and system |
| CN103102053A (en) * | 2013-03-14 | 2013-05-15 | 东莞理文造纸厂有限公司 | Recycling method of papermaking sludge |
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Application publication date: 20191122 |