CN105693052B - A kind of printing and dyeing sludge deep dehydration-drying and other treatment equipment and technique - Google Patents

A kind of printing and dyeing sludge deep dehydration-drying and other treatment equipment and technique Download PDF

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Publication number
CN105693052B
CN105693052B CN201610144018.8A CN201610144018A CN105693052B CN 105693052 B CN105693052 B CN 105693052B CN 201610144018 A CN201610144018 A CN 201610144018A CN 105693052 B CN105693052 B CN 105693052B
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sludge
medium
water sucting
moisture content
printing
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CN105693052A (en
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刘敬勇
李晓瑜
梁凯云
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Guangdong University of Technology
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Guangdong University of Technology
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30Nature of the water, waste water, sewage or sludge to be treated from the textile industry

Abstract

The present invention is a kind of printing and dyeing sludge deep dehydration drying and other treatment equipment and technique.Including printing and dyeing sludge storage tank,Back-mixing machine,Medium blender,Medium drier,Wherein sludge is stored in storage tank,Sludge in sludge storage tank enters medium blender by Biological Pretreatment and after being mixed with water sucting medium,Medium blender is shaken and is sieved separation water sucting medium and sludge,Water sucting medium after separation enters medium drier,Medium drier is the moisture evaporation in water sucting medium,Water sucting medium is heated again simultaneously,Water sucting medium after heating enters medium blender again,Medium blender is shaken and is sieved separation water sucting medium and sludge again,The dewatered sludge particle moisture content separated is down to 25%,It transports outward and packs as finished product dewatered sludge particle,The sludge that part moisture content is 12 20% in medium blender travels further into back-mixing machine,It is mixed with the primary sludge of moisture content 80%~85%.Floor space of the present invention is small, small investment, and operating cost is cheap.

Description

A kind of printing and dyeing sludge deep dehydration-drying and other treatment equipment and technique
Technical field
The present invention is a kind of printing and dyeing sludge deep dehydration-drying and other treatment equipment and technique, belong to printing and dyeing sludge deep dehydration- The innovative technology of drying and other treatment equipment and technique.
Background technology
At present, sewage treatment plant's mud extraction moisture content handles disposition, then transportation cost all 80% or so if necessary to outward transport Higher, advanced treatment process of sludge can be by sludge dewatering to moisture content below 60%, it is possible to reduce about 50% freight charges.Contain in sludge Large quantity of moisture be restrict specific resistance to filtration bottleneck, at present reduce sludge moisture content routine method have it is following several, one Kind is chemical conditioning+mechanical deep desiccation dewatering process, is had at present after being modified using addition solid powder through novel plate frame press filtration Machine press filtration, makes dehydrated sludge moisture content below 60% and frame filter press dewatering time 2~4 hours, filter plate material Material is PVC, and to improve press filtration pressure, frame filter press increases by one layer of diaphragm of rubber or plastic diaphragms, moment in diaphragm (general 3~5 minutes) are passed through 0.6~0.8Mpa compressed airs or water, press and are dehydrated to sludge moment, reduce moisture percentage in sewage sludge To 60% or so, but the service life of diaphragm generally only has 6 months or so, and monoblock filter plate is needed to change after diaphragm failures.Addition Solid powder amount is larger, increases solid content in sludge, reduces organic content, calorific value etc. in sludge;To add in FeCl3 For, the sludge product of desiccation is caused to be difficult to incineration disposal.Another kind is sludge waste heat/waste heat depth desiccation dehydration work Using waste heat flue gas, steam dewatered sludge, moisture content is removed with thermal energy for skill, is " being exchanged heat with heat ".Desiccation dehydration technique advantage includes Sludge character is stable in processing procedure, is not easy to bond, is not likely to produce biogas, and the gas of generation is fire retardant non-explosive, sludge after desiccation Moisture content is less than 10%, and volume reduces very much, takes up an area less, is easy to control, safe and stable.But waste heat exhaust gas desiccation, leads to desiccation Exhausted air quantity is larger, and processing cost is higher, and investment is big, and operating cost is high, while has higher requirements to management and operating technology.It is applicable in In soil anxiety, developed area large-scale wastewater treatment plant or the concentration of multiple middle or small sewage treatment sludge relatively concentrated Processing.
Invention content
A kind of printing and dyeing sludge depth simple in structure, convenient and practical is provided it is an object of the invention to consider the above problem Dehydration-drying and other treatment equipment.Floor space of the present invention is small, small investment, and operating cost is cheap.
Another object of the present invention is to provide a kind of printing and dyeing sludge deep dehydration-drying and other treatment technique.The place of the present invention Science and engineering skill overall process is closed, and has friendly scene operation operating environment, to surrounding enviroment non-secondary pollution;Sludge drying is implemented No added any chemical substance and auxiliary material in the process do not increase the solid content of sludge, are conducive at subsequent printing and dyeing sludge processing It puts.
The technical scheme is that:It is dirty to include printing and dyeing for printing and dyeing sludge deep dehydration-drying and other treatment equipment of the present invention Mud storage tank, back-mixing machine, medium blender, medium drier, wherein sludge are stored in storage tank, the dirt in sludge storage tank Mud enters medium blender by Biological Pretreatment and after being mixed with water sucting medium, and medium blender is water sucting medium and dirt Mud is shaken and sieves separation, and the water sucting medium after separation enters medium drier, and medium drier is in water sucting medium Moisture evaporation, while water sucting medium is heated again, the water sucting medium after heating enters medium blender, medium blender again Water sucting medium and sludge are shaken and are sieved separation again, the dewatered sludge particle moisture content separated is down to 25%, as The outward transport of finished product dewatered sludge particle is packed, and part moisture content is that the sludge of 12-20% travels further into back-mixing machine in medium blender, It is mixed with the primary sludge of moisture content 80%~85%.
Printing and dyeing sludge deep dehydration-drying and other treatment technique of the present invention, includes the following steps:
1) printing and dyeing sludge that moisture content is 80%~85% is pre-processed with microorganism fungus kind;
2) pretreated printing and dyeing sludge is carried out to be mixed in back-mixing device with water sucting medium;
3) mixed printing and dyeing sludge enters medium blender with water sucting medium, is carried out at the same time screening, different using density, Water sucting medium and sludge are shaken and are sieved separation, the dewatered sludge particle moisture content separated is down to 25%, as into Product dewatered sludge particle, part moisture content is that the sludge of 12-20% travels further into back-mixing machine in medium blender, with moisture content 80%~85% sludge is mixed;Water sucting medium after separation enters medium drier, moisture evaporation, while again to inhaling Aqueous medium is heated, and the water sucting medium after heating enters medium blender again;
4) after the water sucting medium after heating enters medium blender, the sludge detached mixes again with water sucting medium, sludge By the further thorough broken wall of physical reactions, outflow is absorbed moisture content by water sucting medium automatically in sludge, is carried out at the same time screening, utilization Density is different, and water sucting medium and sludge are shaken and sieved separation;Meanwhile
The sludge that moisture content is 12-20% in back-mixing machine mix laggard with the sludge that moisture content is 80%~85% Enter medium drier;
5) step 3) is repeated to step 4), is so recycled.
The present invention has the following advantages:The sludge addition biological inoculum of moisture content 80%~85% is pre-processed, is passed through The sludge of pretreatment enters medium blender after being mixed with water sucting medium, medium blender carries out water sucting medium and sludge Concussion and screening separation, the water sucting medium after separation enter medium drier, and medium drier steams the moisture in water sucting medium Hair, while water sucting medium is heated again, the water sucting medium after heating enters medium blender again, and medium blender is again suction Aqueous medium and sludge are shaken and are sieved separation, and the dewatered sludge particle moisture content separated is down to 25%, is done as finished product Mud granule, part moisture content is that the sludge of 12-20% travels further into back-mixing machine in medium blender, is stirred with moisture content medium Device or so sludge is mixed to be mixed.Finished product dewatered sludge particle can be used for power generation by waste combustion fuel, and present invention process floor space is small, Small investment, operating cost are cheap;Treatment process overall process is closed, and has friendly scene operation operating environment, to surrounding enviroment Non-secondary pollution;No added any chemical substance and auxiliary material in sludge drying implementation process do not increase the solid content of sludge;Sludge Decrement is apparent, substantially reduces sludge freight.The exhausted air quantity of generation is few, and tail gas is easily handled.Suitable for factory of sewage treatment plant Interior " treatment in situ ".Project investment is medium, while has higher requirements to management and operating technology.It is nervous, economical suitable for soil The centralized processing of developed regions large-scale wastewater treatment plant or the multiple middle or small sewage treatment sludge relatively concentrated.The present invention's Product can burn acquisition energy, in order to make full use of waste heat, residual heat collection can be used for carrying out printing and dyeing sludge desiccation.
Description of the drawings
Fig. 1 is the fundamental diagram of sludge drying treatment equipment of the present invention.
Fig. 2 is the flow chart of sludge drying treatment process of the present invention.
Specific embodiment
Embodiment:
The fundamental diagram of sludge drying treatment equipment of the present invention as shown in Figure 1, the present invention printing and dyeing sludge deep dehydration- Drying and other treatment equipment, includes printing and dyeing sludge storage tank, back-mixing machine, medium blender, medium drier, and wherein sludge is stored in In storage tank, sludge in sludge storage tank enters medium by Biological Pretreatment and after being mixed with water sucting medium and stirs Device, medium blender shake water sucting medium and sludge and sieve separation, and the water sucting medium after separation enters medium drying Device, medium drier again heat the moisture evaporation in water sucting medium to water sucting medium, the water sucting medium after heating Enter medium blender again, medium blender is shaken and sieved separation water sucting medium and sludge again, and that separates is dry Mud granule moisture content is down to 25%, transports outward and packs as finished product dewatered sludge particle, and part moisture content is 12- in medium blender 20% sludge travels further into back-mixing machine, is mixed with the primary sludge of moisture content 80%~85%.
In the present embodiment, the stirring air blast that above-mentioned sludge storage tank includes storage tank and is installed in storage tank fills It puts.
In the present embodiment, above-mentioned back-mixing machine includes tank body and the stirring rod being installed in tank body and separating knife.Back-mixing machine Major function be using specially designed the wet mud that the dewatered sludge and moisture content of moisture content 12-20% are 80%~85% Stirring rod and separating knife back mixing thoroughly disintegrate the wet mud of the high modification of viscosity.
In the present embodiment, the major function of above-mentioned sludge storage tank is that sludge storage residence time and air is made full use of to mix It closes, generates aerobic reaction, physical modification is carried out to sludge.Mainly it is made of storage tank and stirring blower device.
The major function of above-mentioned medium drier is that the water sucting medium after water suction is air-dried so that hot wind progress is comprehensive, then Cycling and reutilization.
In addition, it is also associated with dust pelletizing system in back-mixing machine, medium blender, medium drier.
In addition, waste water and gas generated in back-mixing machine, medium blender, medium drier, dust pelletizing system processing procedure etc. It is discharged again after being handled by deodorization dedusting filter, deodorization dedusting filter is biological deodorizing dust removal and filtration system.
Printing and dyeing sludge deep dehydration-drying and other treatment technique of the present invention, includes the following steps:
1) printing and dyeing sludge that moisture content is 80%~85% is pre-processed with microorganism fungus kind;
2) pretreated printing and dyeing sludge is carried out to be mixed in back-mixing device with water sucting medium;
3) mixed printing and dyeing sludge enters medium blender with water sucting medium, is carried out at the same time screening, different using density, Water sucting medium and sludge are shaken and are sieved separation, the dewatered sludge particle moisture content separated is down to 25%, as into Product dewatered sludge particle, part moisture content is that the sludge of 12-20% travels further into back-mixing machine in medium blender, with moisture content 80%~85% sludge is mixed;Water sucting medium after separation enters medium drier, moisture evaporation, while again to inhaling Aqueous medium is heated, and the water sucting medium after heating enters medium blender again;
4) after the water sucting medium after heating enters medium blender, the sludge detached mixes again with water sucting medium, sludge By the further thorough broken wall of physical reactions, outflow is absorbed moisture content by water sucting medium automatically in sludge, is carried out at the same time screening, utilization Density is different, and water sucting medium and sludge are shaken and sieved separation;Meanwhile moisture content be 12-20% sludge with it is aqueous The sludge that rate is 80%~85% enters medium drier after being mixed in back-mixing machine;
5) step 3) is repeated to step 4), is so recycled.
In the present embodiment, above-mentioned steps 1) in microorganism fungus kind be the biological inoculum for having flocculating function;Step 1) exists It is pre-processed in sludge filter press;
In the present embodiment, above-mentioned steps 2) in water sucting medium be using cross linked polyacrylate and silicate as intermingling material, With certain hardness.
In the present embodiment, above-mentioned steps 2) in water sucting medium be the spherical or oval multiaperture electrode for being prepared into 4~7mm Property high-efficiency water-absorbing material.
In the present embodiment, above-mentioned steps 2) in, printing and dyeing sludge is mixed with 10% water sucting medium, and water sucting medium is quick It absorbs water, moisture percentage in sewage sludge is reduced to 30% or so.
In the present embodiment, above-mentioned steps 3) in, water sucting medium is heated to 150-200 DEG C, the water sucting medium after heating again into Enter medium blender.
In the present embodiment, above-mentioned steps 4) in, part moisture content is 12-20% in medium blender sludge further into Enter back-mixing machine, mixed with the sludge of moisture content 80%~85%.
The operation principle of the present invention is as follows:Since about 80%, such sludge sticks moisture percentage in sewage sludge after mechanical dehydration Property it is high, double property of sludge cell cause subsequent handling dehydration difficult being lockked inside and outside moisture content." biodegradation " is utilized to make sludge depth Spend dry preprocessor, such microorganism fungus kind can degrade the protein for being attached to sludge cell, fat, carbohydrate With the solids such as other inorganic substances, can the surface of sludge cell effectively be softened broken wall, made again in subsequent program so solid Water is easier to detach.This biodegradation can be used for the muddy water of moisture content 97%, enables mud-water separation speed fast, shortens mud-water separation Time.
The foul smell, medium blender and the drying machine that generate during sludge pretreatment of the present invention generates a small amount of containing ammonia nitrogen Just discharge meets national standard after the processing of biological deodorizing dedusting filter for tail gas and a small amount of dust.Biological deodorizing dedusting Filter device includes bag filter filtering and biological deodorizing equipment.
The dewatered sludge particle moisture content separated is down to 25% hereinafter, drying sludge rate can adjust sludge by different demands Moisture content (30% to 20%) range, the organic matter of sludge in processing procedure because being stablized, while drying process is not because adding Any compound, organic substance is not entirely destroyed in sludge.Therefore dried sludge calorific value does not subtract, and maintains SAP biologies Calorific value after degradation, suitable for compost, building materials, auxiliary fuel or power generation by waste combustion etc..
The sewage generated when preheating sludge handling process can flow back into sewage treatment plant's processing.
Whole system of the present invention is using all-sealed device and fully automatic integral control and monitoring.
The odorless technology of this technique application of the invention is a kind of advanced dry technology, and drying process belongs to physical change, nothing Calorific value is damaged, therefore chemical fertilizer is made in dewatered sludge resourcebility regeneration and burning is used.Unit integration, behaviour few because taking up an area Make safety and stability, without changing raw sewage factory dewatering system, can coordinate and suitable for 80% wet mud of moisture content after sludge dewatering at Reason, no bioxin and foul smell discharge, are relatively suitble to the sewage treatment plant of neighbouring residential block to use.
The sludge drying treatment equipment and technique of the present invention has the following advantages that:Advantage:
(1) there is the sludge high effective drier of unique texture advantage, by crushing agitating device, the heating for increasing sludge connects Contacting surface is accumulated, and overall heat-transfer coefficient is made to improve to 2~3 times of common dryer, and the heat of hot wind is fully used, dry by heat Wind is directly contacted with sludge, is made drying sludge and is formed small granule;
(2) entire technical process is run under sealing condition, the gas that when sludge drying discharges respectively by high temperature incineration, Dedusting depassing unit is eliminated, and complies fully with the requirement of clean manufacturing;
(3) if drying sludge using thermoelectricity fume afterheat, the utilization rate of steam power plant's thermal energy is not only made to increase 2%, more It is important that in the case where not increasing new energy consumption, sludge is made to finally obtain recycling treatment, by " treatment of wastes with processes of wastes against one another ", really reached " circular economy " and the target of " energy-saving and emission-reduction " are arrived;
(4) capital equipment domesticizes, and not only equipment investment and operating cost are significantly less than the domestic and international prior art, Er Qiecao Make easy, operational safety stabilization, clean environment firendly;
(5) burning can make the volume of excess sludge be reduced to minimum, finally need the substance disposed seldom, be not present The problem of heavy metal ion;
(6) Treatment of Sludge speed is fast, does not need to store for a long time;
(7) dried sludge can on-site incineration, do not need to long-distance transportation;
(8) it can recover energy for power generation and heat supply.
The present invention pre-processes the sludge of moisture content 80% using biodegradable, is stirred by double-layer barrel double helix paddle Separation, which is mixed, in machine and the dry mud of predrying to be 20-25% sludge drying to moisture content, " water suction meson " is utilized to make deep Degree dehydration sorbing material, can be reduced to moisture percentage in sewage sludge 12-15%, sludge puts into blender back mixing after desiccation, can obtain Obtain preferable fuel.Any chemical reagents are not added in this technology drying process and carry out sewage sludge harmlessness decrement, so as to fulfill The comprehensive utilization of energy and the final decrement harmlessness disposing of sludge, have " being reduced on the spot ", " desiccation on the spot ", " resource on the spot Using " and the advantages that " treatment in situ ".No added any chemical substance and auxiliary material, do not increase sludge in sludge drying implementation process Solid content;Mud decrement is apparent, substantially reduces sludge freight;This technology technique can handle urban domestic sewage sludge And industrial sludge, and technology belongs to physical processing techniques, and wider possibility side is provided for the disposition of sludge subsequent processing To this technology can make two stage treatment by 92% sludge of moisture content, until 25% dry mud of moisture content, moisture percentage in sewage sludge can be adjusted further It is sent directly into thermal decomposition fluid bed down to 12-15%, providing and is burned, by local sludge heat Calculation, can design to " energy Source balances " it is horizontal.Lime-ash after burning can make multipurpose comprehensive utilization of resources, be really achieved it is innoxious, stabilize, minimizing and The target of the utilization of resources.
Chemical conditioning+mechanical deep dehydration mode traditional at present is mainly the following mode, wherein plate and frame filter press It selects more.Comparison of Energy Consumption is as follows:
Chemical conditioning+mechanical deep dehydration compares
Chemical modification price adjustment pretreatment+mechanical deep dehydration technique can be the sludge press filtration of moisture content 80% to moisture content For 50-60% (only partial sludge property preferably can be only achieved 45-50%);The technique of the present invention can be moisture content 80% Sludge drying to moisture content be 25-40%, (wherein no added process sludge is with dry for the cost of following two kinds of technique of comparative analysis Moisture content is calculated for 40% after change).
" chemical conditioning+mechanism filter-pressing " and desiccation dewatering process Comparison of Energy Consumption of the present invention are as follows:
As can be seen from the above table, from the point of view of considering mud decrement and transportation cost, present invention process moisture percentage in sewage sludge from 80% is down to 25% has a clear superiority in terms of energy consumption, and 12-25% water content sludges are convenient for conveying, in subsequent processing side Face have wider array of outlet, and 60% sludge be further continued to be carried out heat drying further reduce moisture content can be only achieved burning will It asks.
" chemical conditioning+mechanism filter-pressing " and desiccation dewatering process operating cost comparative analysis of the present invention are as follows:
" chemical conditioning+mechanism filter-pressing " and desiccation effect on environment of the present invention comparison are as follows:

Claims (5)

1. a kind of printing and dyeing sludge deep dehydration-drying and other treatment technique, it is characterised in that include the following steps:
1)The printing and dyeing sludge that moisture content is 80%~85% is pre-processed with microorganism fungus kind;
2)Pretreated printing and dyeing sludge is carried out to be mixed in back-mixing device with water sucting medium;
3)Mixed printing and dyeing sludge enters medium blender with water sucting medium, is carried out at the same time screening, using density difference, suction Aqueous medium and sludge are shaken and are sieved separation, and the dewatered sludge particle moisture content separated is down to 25%, and dirt is done as finished product Mud particle, part moisture content is that the sludge of 12-20% travels further into back-mixing machine in medium blender, with moisture content 80%~85% Sludge mixed;Water sucting medium after separation enters medium drier, moisture evaporation, while water sucting medium is carried out again Heating, the water sucting medium after heating enter medium blender again;
4)After water sucting medium after heating enters medium blender, the sludge detached mixes again with water sucting medium, and sludge passes through The further thorough broken wall of physical reactions, outflow is absorbed moisture content by water sucting medium automatically in sludge, is carried out at the same time screening, utilizes density Separation is shaken and sieved to difference water sucting medium and sludge;Meanwhile
The sludge that moisture content is 12-20% enters medium after being mixed in back-mixing machine with the sludge that moisture content is 80%~85% Drier;
5)Step 3) is repeated to step 4), so recycle.
2. printing and dyeing sludge deep dehydration-drying and other treatment technique according to claim 1, it is characterised in that above-mentioned steps 1) In microorganism fungus kind be the biological inoculum for having flocculating function;Step 1)It is pre-processed in sludge filter press.
3. printing and dyeing sludge deep dehydration-drying and other treatment technique according to claim 1, it is characterised in that above-mentioned steps 2) In water sucting medium be using cross linked polyacrylate and silicate as intermingling material, there is certain hardness.
4. printing and dyeing sludge deep dehydration-drying and other treatment technique according to claim 1, it is characterised in that above-mentioned steps 2)In water sucting medium be to be prepared into the spherical shape of 4~7mm or the porous polarity high-efficiency water-absorbing material of ellipse.
5. printing and dyeing sludge deep dehydration-drying and other treatment technique according to claim 1, it is characterised in that above-mentioned steps 3) In, water sucting medium is heated to 150-200 DEG C, and the water sucting medium after heating enters medium blender again.
CN201610144018.8A 2016-03-14 2016-03-14 A kind of printing and dyeing sludge deep dehydration-drying and other treatment equipment and technique Active CN105693052B (en)

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CN106865947B (en) * 2017-03-17 2020-09-22 华南理工大学 Sludge drying treatment method
CN110183084B (en) * 2019-06-24 2022-04-12 上海华畅环保设备发展有限公司 Residual sludge drying and reducing method and device
CN110272176B (en) * 2019-07-09 2022-06-28 招远市汇潮新能源科技有限公司 Sludge deep drying device and method based on distributed super-strong liquid-absorbing small balls

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Publication number Priority date Publication date Assignee Title
CN101993181A (en) * 2010-10-21 2011-03-30 江苏东源纺织科技实业有限公司 Method for dehydration and recycling of continuous dyeing sludge
CN103803769A (en) * 2014-01-13 2014-05-21 重庆交通大学 Vertical inter-partition sludge drying method and equipment with crushing and safety monitoring functions
CN205662436U (en) * 2016-03-14 2016-10-26 广东工业大学 Printing and dyeing sludge deep dehydration mummification treatment facility

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993181A (en) * 2010-10-21 2011-03-30 江苏东源纺织科技实业有限公司 Method for dehydration and recycling of continuous dyeing sludge
CN103803769A (en) * 2014-01-13 2014-05-21 重庆交通大学 Vertical inter-partition sludge drying method and equipment with crushing and safety monitoring functions
CN205662436U (en) * 2016-03-14 2016-10-26 广东工业大学 Printing and dyeing sludge deep dehydration mummification treatment facility

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