CN103290715B - Waste paper deinking process and apparatus thereof - Google Patents
Waste paper deinking process and apparatus thereof Download PDFInfo
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- CN103290715B CN103290715B CN201310251075.2A CN201310251075A CN103290715B CN 103290715 B CN103290715 B CN 103290715B CN 201310251075 A CN201310251075 A CN 201310251075A CN 103290715 B CN103290715 B CN 103290715B
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- degumming
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- slurry
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- 239000002761 deinking Substances 0.000 title claims abstract description 174
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000008569 process Effects 0.000 title claims abstract description 20
- 239000010893 paper waste Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000002351 wastewater Substances 0.000 claims abstract description 73
- 238000005188 flotation Methods 0.000 claims abstract description 59
- 238000004094 preconcentration Methods 0.000 claims abstract description 15
- 238000004064 recycling Methods 0.000 claims abstract description 9
- 238000007865 diluting Methods 0.000 claims abstract description 8
- 238000010790 dilution Methods 0.000 claims abstract description 8
- 239000012895 dilution Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 92
- 239000002002 slurry Substances 0.000 claims description 66
- 238000005276 aerator Methods 0.000 claims description 33
- 239000013043 chemical agent Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 238000004537 pulping Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 230000001351 cycling effect Effects 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000007873 sieving Methods 0.000 abstract 2
- 230000006872 improvement Effects 0.000 description 9
- 229920001131 Pulp (paper) Polymers 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The present invention relates to the technical field of papermaking, particularly to a waste paper deinking process and an apparatus thereof. The waste paper deinking process sequentially comprises the following steps: crushing pulp, filtering, diluting, carrying out flotation deinking, carrying out primary concentration, carrying out secondary concentration, carrying out wastewater deinking degumming, carrying out white water circulation recycling, and respectively conveying the white water to the steps such as pulp crushing, filtering, diluting and flotation so as to be continuously recycled. The waste paper deinking apparatus comprises a pulp crushing machine, a sieving machine, a dilution device, a flotation deinking machine, a pre-concentration device, a high speed pulp washer, a wastewater deinking degumming machine, and a circulation recycling device for respectively conveying white water obtained from wastewater deinking degumming to the pulp crushing machine, the sieving machine, the dilution device or the flotation deinking machine. According to the present invention, low energy consumption is low, a structure is simple, use is convenient, a deinking effect is good, zero emission of wastewater is achieved, environmental protection and energy saving are provided, deinking efficiency is increased, and an occupation space is small.
Description
Technical field
The present invention relates to pulp technology for making paper, particularly relate to a kind of deinking technique and equipment thereof.
Background technology
In paper industry, most important two production factors comprise low energy consumption production and environmental protection, if these two tasks are held rationally, the cost payout of very great share then can be lowered to enterprise, high profit will be gathered in the crops like this, so paper industry does all one can to study for the waste water handling problem how processing generation always, the but wastewater treatment equipment of tradition use, such as there is following shortcoming in air-dissolving air-float device processes paper waste:
1, cost for wastewater treatment is high, and process the cost that every cube of water approximately needs about 0.6 yuan, cost for wastewater treatment is high.
2, waste energy, the chemical agent of meeting remained unreacted and the resource such as the heat of generation when producing and abundant fiber in the waste water that papermaking produces, after this device processes, the above-mentioned resource waste water that is processed directly becomes clear water, wastes above-mentioned ample resources.
In addition, in paper making process, because slurry concentration required in every procedure is different, so need the transmission power of the pump housing different, originally can complete conveying by the lower powered pump housing in some operations, but be subject to the restriction of processing step, need the powerful pump housing to carry, virtually add energy consumption, improve cost and drop into.
Summary of the invention
The object of the present invention is to provide a kind of deinking technique, there is discharge of wastewater to solve in traditional paper-making process, cause energy waste and contaminated environment, high energy consumption, the technical problem that papermaking cost is high.
With regard to deinking technique, the present invention is achieved in that a kind of deinking technique, comprises the following steps implemented successively:
Pulping, carries out pulverizing by the mixing of waste paper, water and chemical agent and makes slurry;
Filter, remove the impurity in slurry;
Dilution, diluting adding water in slurry, making slurry concentration be diluted to 0.5%-0.7%;
Floatation and ink removing, carries out floatation and ink removing by slurry pipeline steel to floatation and ink removing machine;
Initial concentration, first carries out predrainage by motorless pre-concentration device by the slurry after deinking, is separated waste water and slurry, makes the slurry concentration of predrainage reach 1%-3%;
Concentrate once again, utilize high-speed pulp washer to dewater further again to slurry, be separated waste water and slurry further, make slurry concentration reach 15%;
Waste water deinking and degumming, by initial concentration and the waste water collected in concentration process once again, utilizes waste water deinking and degumming machine to carry out deinking and degumming to waste water, discharges ink and sicker, obtain the plain boiled water containing chemical agent and heat and fiber;
Plain boiled water cycling and reutilization, flows to plain boiled water respectively in pulping, filtration, dilution and floatation and ink removing step again and continues to recycle.
As further improvement, described pre-concentration device comprises oblique net, described oblique net is fixedly mounted in frame, and the back side of described oblique net is provided with some scrapers, the blade of described scraper and described oblique net offset and the installation direction of described blade and described slurry flow to contrary.
As further improvement, described waste water deinking and degumming machine comprises deinking and degumming engine housing, flotation chamber and deslagging chamber is provided with in described deinking and degumming engine housing, described flotation chamber is communicated with described deslagging chamber, described deslagging chamber is positioned at the below in described flotation chamber, at least one deck aerator is provided with in described flotation chamber, the described deinking and degumming engine housing be positioned at above described aerator is provided with the water intake be communicated with described flotation chamber, be positioned at described deinking and degumming engine housing corresponding to described flotation chamber below described aerator and be provided with plain boiled water outlet, deinking and degumming engine housing corresponding to described deslagging chamber is taper, the bottom in described deslagging chamber is provided with slag-drip opening, described deinking and degumming engine housing is also provided with discharging opening for permitting discharging of the toner.
After have employed technique scheme, the invention has the beneficial effects as follows:
Owing to adding waste water deinking and degumming and this two steps manufacturing technology steps of plain boiled water cycling and reutilization in deinking technique; not only greatly save the energy; the chemical agent in paper waste and energy is made to be recycled recycling; and make to achieve wastewater zero discharge in deinking technique; greatly protect environment; energy-conserving and environment-protective, also greatly reduce wastewater treatment expense, papermaking cost reduces greatly simultaneously.
Owing to adding preliminary concentration step in processing step, and do not use any power in concentration step, greatly reduce energy consumption, structure is simple, and convenient operation, create a further reduction papermaking cost, economical rationality.
Owing to increasing thin up, after making slurry concentration to 0.5%-0.7%, carry out floatation and ink removing again, not only reach best floatation and ink removing concentration, substantially increase the effect of floatation and ink removing, also improve quality and the production efficiency of papermaking simultaneously.
In addition, another technical problem that will solve of the present invention is to provide a kind of deinking equipment, contaminated environment high with energy consumption in the paper making equipment use procedure solving existing use, the technical problem that papermaking cost is high.
With regard to deinking equipment, the present invention is achieved in that a kind of deinking equipment, comprises setting gradually
For the mixing of waste paper, water and chemical agent is carried out pulverizing the pulper making slurry;
For filtering the screen-dividing machine of impurity in pulping;
For adding the air mix facilities that water carries out diluting in slurry;
For the floatation and ink removing machine of slurry deinking;
For the pre-concentration device of slurry preliminary hydro-extraction;
For the high-speed pulp washer that slurry dewaters further;
For the waste water of collection being carried out the waste water deinking and degumming machine of deinking and degumming;
Plain boiled water for obtaining after waste water deinking and degumming is delivered to the circulation recycling device of pulper, screen-dividing machine, air mix facilities or floatation and ink removing machine respectively, described circulation recycling device comprises the kinetic pump connecting plain boiled water outlet, described kinetic pump be connected pulper respectively, screen-dividing machine, air mix facilities be connected with the branch line of floatation and ink removing machine, and described branch line is equipped with flow control valve.
As further improvement, described pre-concentration device comprises oblique net, described oblique net is fixedly mounted in frame, and the back side of described oblique net is provided with some scrapers, the blade of described scraper and described oblique net offset and the installation direction of described blade and described slurry flow to contrary.
As further improvement, described waste water deinking and degumming device comprises deinking and degumming engine housing, flotation chamber and deslagging chamber is provided with in described deinking and degumming engine housing, described flotation chamber is communicated with described deslagging chamber, described deslagging chamber is positioned at the below in described flotation chamber, at least one deck aerator is provided with in described flotation chamber, the described deinking and degumming engine housing be positioned at above described aerator is provided with the water inlet be communicated with described flotation chamber, be positioned at described deinking and degumming engine housing corresponding to described flotation chamber below described aerator and be provided with plain boiled water outlet, deinking and degumming engine housing corresponding to described deslagging chamber is taper, the bottom in described deslagging chamber is provided with slag-drip opening, described deinking and degumming engine housing is also provided with discharging opening for permitting discharging of the toner.
As further improvement, described deinking and degumming engine housing top has an ink collection gutter, described ink collection gutter is communicated with described flotation chamber, and described discharging opening for permitting discharging of the toner is arranged on the described deinking and degumming engine housing above described aerator, and described discharging opening for permitting discharging of the toner is communicated with described ink collection gutter.
As further improvement, described deinking and degumming engine housing internal fixtion is provided with ink mozzle, the upper end of described ink mozzle is provided with ink collection mouth, described ink collection mouth is positioned at the top in described flotation chamber, described ink mozzle is communicated with described discharging opening for permitting discharging of the toner, described ink mozzle stretches out deinking and degumming engine housing corresponding to described deslagging chamber, and described discharging opening for permitting discharging of the toner is positioned at the outside of described deinking and degumming engine housing.
As further improvement, described discharging opening for permitting discharging of the toner comprises the first discharging opening for permitting discharging of the toner and the second discharging opening for permitting discharging of the toner; Described deinking and degumming engine housing top has an ink collection gutter, described ink collection gutter is communicated with described flotation chamber, described first discharging opening for permitting discharging of the toner is arranged on the described deinking and degumming engine housing above described aerator, and described first discharging opening for permitting discharging of the toner is communicated with described ink collection gutter;
Described deinking and degumming engine housing internal fixtion is provided with ink mozzle, the upper end of described ink mozzle is provided with ink collection mouth, described ink collection mouth is positioned at the top in described flotation chamber, described ink mozzle is communicated with described second discharging opening for permitting discharging of the toner, described ink mozzle stretches out deinking and degumming engine housing corresponding to described deslagging chamber, and described second discharging opening for permitting discharging of the toner is positioned at the outside of described deinking and degumming engine housing.
As further improvement, the side of described deinking and degumming engine housing is provided with the elevated tank for regulating height of liquid level in described deinking and degumming engine housing, the water inlet of described elevated tank is by pipeline and described plain boiled water outlet, and the delivery port of described elevated tank connects described kinetic pump.
After have employed technique scheme, the invention has the beneficial effects as follows:
Owing to adopting waste water deinking and degumming machine; the waste water produced in deinking process is carried out deinking and degumming process; become containing heat and residue chemical agent plain boiled water after; again flow to again in other equipment of deinking and continue cycling and reutilization, this not only reduces the use amount of water and chemical agent in pulping process, reduce resource use cost; and achieve the zero-emission of Sewage treatment utilization and waste water; greatly protect environment, economical and practical, environmental protection and energy saving.
Due to the oblique net that pre-concentration device is not consumption of power, so just greatly reduce the energy consumption in production process, also reduce papermaking cost simultaneously, easy to use, convenient operation.
Slurry concentration can be diluted to optium concentration needed for floatation and ink removing owing to employing air mix facilities in floatation and ink removing equipment, best deinking efficiency can be reached with this, above-mentioned slurry concentration lowers, the power of stock pump conveying can be reduced simultaneously, the low device structure of energy consumption is simple, take up room little, easy to use.
Because floatation and ink removing machine comprises deinking device housing, be provided with multilayer aerator in deinking device housing, aerator is connected with source of the gas, and deinking device housing is also provided with discharging opening for permitting discharging of the toner, arranging of multilayer aerator can increase floatation and ink removing effect further, improves Deinking Efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the embodiment of the present invention two;
Fig. 3 is the structural representation of the embodiment of the present invention three;
Fig. 4 is the structural representation of the embodiment of the present invention four;
In figure: 1, pulper, 11, pulper adds mouth, and 12, pulper grout outlet, 13, pulper water inlet, 2, screen-dividing machine, 21, screen-dividing machine water inlet, 3, floatation and ink removing machine, 30, deinking device housing, 31, floatation and ink removing machine stock inlet, 32, discharging opening for permitting discharging of the toner, 33, aerator, 34, floatation and ink removing machine grout outlet, 35, blower fan, 36, floatation and ink removing machine water inlet, 4, air mix facilities, 41, air mix facilities water inlet, 5, pre-concentration device, 51, oblique net, 52, frame, 53, scraper, 54, overflow launder, 55, stock inlet, 56, water leg, 57, oblique net wastewater outlet, 58, oblique net grout outlet, 6, high-speed pulp washer, 61, second wastewater outlet, 62, high-speed pulp washer stock inlet, 7, waste water deinking and degumming machine, 71, deinking and degumming engine housing, 72, flotation chamber, 73, deslagging chamber, 74, water intake, 75, first discharging opening for permitting discharging of the toner, 76, second discharging opening for permitting discharging of the toner, 77, plain boiled water exports, and 78, slag-drip opening, 79, aerator, 80, ink collection gutter, 81, ink mozzle, 82, blower fan, 83, control valve, 84, elevated tank, 841, elevated tank water inlet, 842, elevated tank delivery port, 8, circulating water pipe, 85, ink collection mouth, 9, kinetic pump, 10, inner core, 11, suspended matter exports.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention discloses a kind of deinking technique, comprise the following steps implemented successively:
Pulping, carries out pulverizing by the mixing of waste paper, water and chemical agent and makes slurry;
Filter, remove the impurity in slurry;
Dilution, diluting adding water in slurry, making slurry concentration be diluted to 0.5%-0.7%;
Floatation and ink removing, carries out floatation and ink removing by slurry pipeline steel to floatation and ink removing machine;
Initial concentration, first carries out predrainage by motorless pre-concentration device by the slurry after deinking, is separated waste water and slurry, makes the slurry concentration of predrainage reach 1%-3%;
Concentrate once again, utilize high-speed pulp washer to dewater further again to slurry, be separated waste water and slurry further, make slurry concentration reach 15%;
Waste water deinking and degumming, by initial concentration and the waste water collected in concentration process once again, utilizes waste water deinking and degumming machine to carry out deinking and degumming to waste water, discharges ink and sicker, obtain the plain boiled water containing chemical agent and heat;
Plain boiled water cycling and reutilization, flows to plain boiled water respectively in pulping, filtration, dilution and floatation and ink removing step again and continues to recycle.
Pre-concentration device 5 comprises oblique net 51, and oblique net 51 is fixedly mounted in frame 52, and the back side of oblique net 51 is provided with some scrapers 53, the blade of scraper 53 and oblique net 51 offset and the installation direction of blade and slurry flow to contrary.
Waste water deinking and degumming machine comprises deinking and degumming engine housing 71, flotation chamber 72 and deslagging chamber 73 is provided with in deinking and degumming engine housing 71, flotation chamber 72 is communicated with deslagging chamber 73, deslagging chamber 73 is positioned at the below in flotation chamber 72, at least one deck aerator 79 is provided with in flotation chamber 72, the deinking and degumming engine housing 71 be positioned at above aerator 79 is provided with the water intake 74 be communicated with flotation chamber 72, the deinking and degumming engine housing 71 being positioned at flotation chamber 72 correspondence below aerator 79 is provided with plain boiled water outlet 77, the deinking and degumming engine housing 71 of deslagging chamber 73 correspondence is taper, the bottom in deslagging chamber 73 is provided with slag-drip opening 78, deinking and degumming engine housing 71 is also provided with discharging opening for permitting discharging of the toner.
Waste water deinking production technology of the present invention, whole process energy consumption is low, economize energy, realize wastewater zero discharge, economic environmental protection, and structure is simple, convenient operation.
Embodiment one:
As shown in Figure 1, the invention also discloses a kind of waste water deinking equipment, comprise and setting gradually
For the mixing of waste paper, water and chemical agent is carried out pulverizing the pulper 1 making slurry;
For filtering the screen-dividing machine 2 of impurity in pulping;
For adding the air mix facilities 4 that water carries out diluting in slurry;
For the floatation and ink removing machine 3 of slurry deinking;
For the pre-concentration device 5 of slurry preliminary hydro-extraction;
For the high-speed pulp washer 6 that slurry dewaters further;
For the waste water of collection being carried out the waste water deinking and degumming machine 7 of deinking and degumming.
Plain boiled water for obtaining after waste water deinking and degumming is delivered to the circulation recycling device of pulper 1, screen-dividing machine 2, air mix facilities 4 or floatation and ink removing machine 3 respectively, circulation recycling device comprises the kinetic pump 9 connecting plain boiled water outlet 77, kinetic pump 9 be connected pulper 1 respectively, screen-dividing machine 2, air mix facilities 4 be connected with the branch line of floatation and ink removing machine 3, and branch line is equipped with flow control valve.
Pre-concentration device 5 comprises oblique net 51, and oblique net 51 is fixedly mounted in frame 52, and the back side of oblique net 51 is provided with some scrapers 53, the blade of scraper 53 and oblique net 51 offset and the installation direction of blade and slurry flow to contrary.
Waste water deinking and degumming machine comprises deinking and degumming engine housing 71, flotation chamber 72 and deslagging chamber 73 is provided with in deinking and degumming engine housing 71, flotation chamber 72 is communicated with deslagging chamber 73, deslagging chamber 73 is positioned at the below in flotation chamber 74, at least one deck aerator 79 is provided with in flotation chamber 74, the deinking and degumming engine housing 71 be positioned at above aerator 79 is provided with the water intake 74 be communicated with flotation chamber 72, the deinking and degumming engine housing 71 being positioned at flotation chamber 72 correspondence below aerator 79 is provided with plain boiled water outlet 77, the deinking and degumming engine housing 71 of deslagging chamber 73 correspondence is taper, the bottom in deslagging chamber 73 is provided with slag-drip opening 78, deinking and degumming engine housing 71 is also provided with discharging opening for permitting discharging of the toner.
Deinking and degumming engine housing 71 top has an ink collection gutter 80, and ink collection gutter 80 is communicated with flotation chamber 72, and discharging opening for permitting discharging of the toner is arranged on the deinking and degumming engine housing 71 above aerator 79, and discharging opening for permitting discharging of the toner is communicated with ink collection gutter 80.
The side of deinking and degumming engine housing 71 is provided with the elevated tank 84 for regulating height of liquid level in described deinking and degumming engine housing 71, and elevated tank water inlet 841 exports 77 by pipeline and plain boiled water and is communicated with, and elevated tank delivery port 842 is communicated with circulating water pipe 8.
Circulating water pipe 8 is communicated with floatation and ink removing machine water inlet 36 with pulper water inlet 13, screen-dividing machine water inlet 21, air mix facilities water inlet 41 respectively.
Above-mentioned water intake 74 place is provided with jet flow device.
The water inlet direction of water intake 74 is along the tangential direction of deinking and degumming engine housing 71.
The water inlet direction of water intake 74 is along the radial direction of deinking and degumming engine housing 71.
During use, pulper 1 can select high density hydraulic pulper, first utilize high density hydraulic pulper in body, form strong hydraulic blow and shear action, the object of pulping is reached again by the chemical reaction of chemical agent, waste paper is made to become slurry, then be transported in screen-dividing machine 2, screen-dividing machine 2 optional holes can sieve screen(ing) machine, filter the impurity in slurry, filter the slurry after impurity and passed into dilution water from air mix facilities 4, dilute, slurry concentration is made to reach the concentration of 0.5%-0.7%, namely best floatation and ink removing concentration, then the deinking carrying out slurry in floatation and ink removing machine 3 is conveyed into, slurry after deinking is first transported on oblique net 51 and carries out preliminary hydro-extraction, scraper 53 now on oblique net 51 back side can play the effect of auxiliary drainage, slurry concentration after preliminary drainage can reach 1%-1.5%, the moisture taken off directly is entered in waste water deinking and degumming machine 7 by pipeline and processes, then slurry carries out high-efficiency dehydration more further, now concentration can reach 10%, the water taken off in this process also enters into waste water deinking and degumming machine 7 and processes, the waste water produced in above-mentioned two equipment all enters in waste water deinking and degumming machine 7, without any the discharge of sewage in production process, reach sewage zero-discharge, through the waste water of waste water deinking and degumming machine 7 process, become containing residue chemical agent, after the plain boiled water of heat and fiber etc., be transferred back pulper water inlet 13 again, screen-dividing machine water inlet 21, continue to recycle in air mix facilities water inlet 41 and floatation and ink removing machine water inlet 36,
When above-mentioned waste water deinking and degumming machine uses, paper pulp wastewater enters from water intake 74, tangent line can be adopted to intake or radially direction water inlet, first the paper pulp wastewater entered in deinking and degumming engine housing 71 can arrive in flotation chamber 72, then floatation and ink removing is carried out by the multilayer aerator 79 in flotation chamber, a large amount of microbubble groups that aerator 79 produces can ink in large-scale adsorption paper pulp waste water and sicker, then along with the rising of bubble population, in direct arrival ink collection gutter 80, finally from the discharging opening for permitting discharging of the toner be arranged on above aerator 79, discharge deinking and degumming engine housing 71, the waste sludge precipitated in paper pulp can arrive in deslagging chamber 73, mud is discharged etc. reaching a certain amount of rear control valve 83 directly opening slag-drip opening 78 place,
Through above-mentioned deinking and come unstuck and drain precipitation mud after, only the medicament added in paper pulp papermaking, a large amount of heats and fiber can be remained in paper pulp wastewater, paper pulp wastewater becomes plain boiled water, directly be discharged in paper pulp processing technology production equipment from plain boiled water outlet 77, again carry out recycle, greatly reduce papermaking cost, consume energy low, efficiency is high.
In above-mentioned whole process, equipment use quantity is few, energy consumption is low, economize energy, easy to use, and structure is simple, economical and practical.
Embodiment two:
The present embodiment is substantially identical with the structure of embodiment one, its difference is, another kind of waste water deinking and degumming machine as shown in Figure 2, deinking and degumming engine housing 71 internal fixtion is provided with ink mozzle 81, the upper end of ink mozzle 81 is provided with ink collection mouth 85, ink collection mouth 85 is positioned at the top in flotation chamber 72, ink mozzle 81 is communicated with the second discharging opening for permitting discharging of the toner 76, deinking and degumming engine housing 71, second discharging opening for permitting discharging of the toner 76 that ink mozzle 81 stretches out deslagging chamber 73 correspondence is positioned at the outside of deinking and degumming engine housing 71.
During use, the ink that flotation produces and sicker directly enter into ink collection mouth 85, then along ink conduit stream 81 to the second discharging opening for permitting discharging of the toner 76 place, directly discharge deinking and degumming engine housing 71.
Embodiment three:
The present embodiment is substantially identical with the structure of embodiment one, and its difference is, another kind of waste water deinking and degumming machine as shown in Figure 3, and discharging opening for permitting discharging of the toner comprises the first discharging opening for permitting discharging of the toner 75 and the second discharging opening for permitting discharging of the toner 76; Deinking and degumming engine housing 71 top has an ink collection gutter 80, and ink collection gutter 80 is communicated with the first ink export 75, and the first discharging opening for permitting discharging of the toner 75 is arranged on the deinking and degumming engine housing 71 above aerator 79, and ink collection gutter 80 is also communicated with flotation chamber 72;
Deinking and degumming engine housing 71 internal fixtion is provided with ink mozzle 81, the upper end of ink mozzle 81 is provided with ink collection mouth 85, ink collection mouth 85 is positioned at the top in flotation chamber 72, ink mozzle 81 is communicated with the second discharging opening for permitting discharging of the toner 76, deinking and degumming engine housing 71, second discharging opening for permitting discharging of the toner 76 that ink mozzle 81 stretches out deslagging chamber 73 correspondence is positioned at the outside of deinking and degumming engine housing 71.
During use, the ink produced by flotation and sicker, not only directly can be drained from the first discharging opening for permitting discharging of the toner 75 by ink collection gutter 80, also from ink mozzle 81, arrive the second discharging opening for permitting discharging of the toner 76 to drain simultaneously, not only substantially increase venting efficiency, also improve flotation efficiency, structure is simple, easy to use simultaneously.
Above-mentioned blower fan 82 provides source of the gas to aerator 79.
Plain boiled water outlet 77 is communicated with elevated tank 84, and the water level in such deinking and degumming engine housing 71 just can be regulated by the weir plate in elevated tank 84, is convenient to control liquid level, ensures the effect of flotation.
Embodiment four:
The present embodiment is substantially identical with the structure of embodiment one, and difference is, another kind of waste water deinking and degumming machine as shown in Figure 4, is provided with the inner core 10 for guiding suspended matter to flow out deinking and degumming engine housing 71 in deinking and degumming engine housing 71.
The pyramidal structure that inner core 10 is big up and small down, the large end of inner core 10 and small end are all closed and are arranged, the large end of inner core 10 is fixedly connected with deinking and degumming engine housing 71 top inwall, the top of deinking and degumming engine housing 71 is provided with some suspended matters outlet 11, suspended matter outlet 11 is positioned at the outside that inner core 10 is held greatly, and corresponding with the outer wall position that inner core 10 is held greatly.
During use, the suspended matter floated in deinking and degumming engine housing 71, the suspended matter that can flow to deinking and degumming engine housing 71 top along the outer wall of closed inner core 10 exports 11 places, and be then discharged to outside deinking and degumming engine housing 71, structure is simple, and water conservancy diversion is effective.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. deinking technique, is characterized in that, comprises the following steps implemented successively:
(1) pulping, carries out pulverizing by the mixing of waste paper, water and chemical agent and makes slurry;
(2) filter, remove the impurity in slurry;
(3) dilute, diluting adding water in slurry, making slurry concentration be diluted to 0.5%-0.7%;
(4) floatation and ink removing, carries out floatation and ink removing by slurry pipeline steel to floatation and ink removing machine;
(5) initial concentration, first carries out predrainage by motorless pre-concentration device by the slurry after deinking, is separated waste water and slurry, makes the slurry concentration of predrainage reach 1%-3%;
(6) concentrate once again, utilize high-speed pulp washer to dewater further again to slurry, be separated waste water and slurry further, make slurry concentration reach 15%;
(7) waste water deinking and degumming, by initial concentration and the waste water collected in concentration process once again, utilizes waste water deinking and degumming machine to carry out deinking and degumming to waste water, discharges ink and sicker, obtain the plain boiled water containing chemical agent and heat and fiber;
(8) plain boiled water cycling and reutilization, flows to plain boiled water respectively in pulping, filtration, dilution and floatation and ink removing step again and continues to recycle.
2. deinking technique according to claim 1, it is characterized in that, described pre-concentration device comprises oblique net, described oblique net is fixedly mounted in frame, the back side of described oblique net is provided with some scrapers, the blade of described scraper and described oblique net offset and the installation direction of described blade and described slurry flow to contrary.
3. deinking technique according to claim 1, it is characterized in that, described waste water deinking and degumming machine comprises deinking and degumming engine housing, flotation chamber and deslagging chamber is provided with in described deinking and degumming engine housing, described flotation chamber is communicated with described deslagging chamber, described deslagging chamber is positioned at the below in described flotation chamber, at least one deck aerator is provided with in described flotation chamber, the described deinking and degumming engine housing be positioned at above described aerator is provided with the water intake be communicated with described flotation chamber, be positioned at described deinking and degumming engine housing corresponding to described flotation chamber below described aerator and be provided with plain boiled water outlet, deinking and degumming engine housing corresponding to described deslagging chamber is taper, the bottom in described deslagging chamber is provided with slag-drip opening, described deinking and degumming engine housing is also provided with discharging opening for permitting discharging of the toner.
4. deinking equipment, is characterized in that, comprises setting gradually
For the mixing of waste paper, water and chemical agent is carried out pulverizing the pulper making slurry;
For filtering the screen-dividing machine of impurity in pulping;
For adding the air mix facilities that water carries out diluting in slurry;
For the floatation and ink removing machine of slurry deinking;
For the pre-concentration device of slurry preliminary hydro-extraction;
For the high-speed pulp washer that slurry dewaters further;
For the waste water of collection being carried out the waste water deinking and degumming machine of deinking and degumming;
Plain boiled water for obtaining after waste water deinking and degumming is delivered to the circulation recycling device of pulper, screen-dividing machine, air mix facilities or floatation and ink removing machine respectively, described circulation recycling device comprises the kinetic pump connecting plain boiled water outlet, described kinetic pump be connected pulper respectively, screen-dividing machine, air mix facilities be connected with the branch line of floatation and ink removing machine, and described branch line is equipped with flow control valve.
5. deinking equipment according to claim 4, it is characterized in that, described pre-concentration device comprises oblique net, described oblique net is fixedly mounted in frame, the back side of described oblique net is provided with some scrapers, the blade of described scraper and described oblique net offset and the installation direction of described blade and described slurry flow to contrary.
6. deinking equipment according to claim 4, it is characterized in that, described waste water deinking and degumming machine comprises deinking and degumming engine housing, flotation chamber and deslagging chamber is provided with in described deinking and degumming engine housing, described flotation chamber is communicated with described deslagging chamber, described deslagging chamber is positioned at the below in described flotation chamber, at least one deck aerator is provided with in described flotation chamber, the described deinking and degumming engine housing be positioned at above described aerator is provided with the water intake be communicated with described flotation chamber, be positioned at described deinking and degumming engine housing corresponding to described flotation chamber below described aerator and be provided with plain boiled water outlet, deinking and degumming engine housing corresponding to described deslagging chamber is taper, the bottom in described deslagging chamber is provided with slag-drip opening, described deinking and degumming engine housing is also provided with discharging opening for permitting discharging of the toner.
7. deinking equipment according to claim 6, it is characterized in that, described deinking and degumming engine housing top has an ink collection gutter, described ink collection gutter is communicated with described flotation chamber, described discharging opening for permitting discharging of the toner is arranged on the described deinking and degumming engine housing above described aerator, and described discharging opening for permitting discharging of the toner is communicated with described ink collection gutter.
8. deinking equipment according to claim 6, it is characterized in that, described deinking and degumming engine housing internal fixtion is provided with ink mozzle, the upper end of described ink mozzle is provided with ink collection mouth, described ink collection mouth is positioned at the top in described flotation chamber, described ink mozzle is communicated with described discharging opening for permitting discharging of the toner, and described ink mozzle stretches out deinking and degumming engine housing corresponding to described deslagging chamber, and described discharging opening for permitting discharging of the toner is positioned at the outside of described deinking and degumming engine housing.
9. deinking equipment according to claim 6, is characterized in that, described discharging opening for permitting discharging of the toner comprises the first discharging opening for permitting discharging of the toner and the second discharging opening for permitting discharging of the toner; Described deinking and degumming engine housing top has an ink collection gutter, described ink collection gutter is communicated with described flotation chamber, described first discharging opening for permitting discharging of the toner is arranged on the described deinking and degumming engine housing above described aerator, and described first discharging opening for permitting discharging of the toner is communicated with described ink collection gutter;
Described deinking and degumming engine housing internal fixtion is provided with ink mozzle, the upper end of described ink mozzle is provided with ink collection mouth, described ink collection mouth is positioned at the top in described flotation chamber, described ink mozzle is communicated with described second discharging opening for permitting discharging of the toner, described ink mozzle stretches out deinking and degumming engine housing corresponding to described deslagging chamber, and described second discharging opening for permitting discharging of the toner is positioned at the outside of described deinking and degumming engine housing.
10. the deinking equipment according to the arbitrary claim of claim 6 to 9, it is characterized in that, the side of described deinking and degumming engine housing is provided with the elevated tank for regulating height of liquid level in described deinking and degumming engine housing, the water inlet of described elevated tank is by pipeline and described plain boiled water outlet, and the delivery port of described elevated tank connects described kinetic pump.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104165270B (en) * | 2014-08-19 | 2017-03-29 | 云南大红山管道有限公司 | A kind of pipeline iron ore concentrate slurry dilution control system and its control method |
| CN106948199A (en) * | 2017-03-13 | 2017-07-14 | 吉安集团有限公司 | The system that a kind of use floatation handles waste paper pulp sicker |
| CN110055799A (en) * | 2018-01-18 | 2019-07-26 | 东莞市泰昌纸业有限公司 | Use the slurry low temperature de-inking method of reclaimed waste paper production brown paper |
| CN108729279B (en) * | 2018-06-07 | 2020-12-01 | 南阳中昊科技有限公司 | New method for recycling waste paper |
| CN110499659B (en) * | 2019-08-26 | 2021-07-27 | 杭州临安桃源纸业有限公司 | Papermaking system capable of reducing sludge generation |
| CN113445346A (en) * | 2021-07-06 | 2021-09-28 | 威洋联捷(深圳)科技股份有限公司 | Method for recycling and reproducing waste label paper |
| CN114054455A (en) * | 2021-11-29 | 2022-02-18 | 东莞市瑞立达玻璃盖板科技股份有限公司 | Deinking and cleaning integrated device and deinking and cleaning method |
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| CN203320327U (en) * | 2013-06-22 | 2013-12-04 | 李风志 | Waste paper deinking device |
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| JP5114723B2 (en) * | 2006-07-14 | 2013-01-09 | 王子ホールディングス株式会社 | Flotator and waste paper deinking method |
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| CN2346507Y (en) * | 1998-12-07 | 1999-11-03 | 王育民 | Wasted paper ink removing hydrosizer |
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