CN108328757B - Polyvinylidene fluoride ultra-low energy consumption and sewage zero-emission clean production process method - Google Patents
Polyvinylidene fluoride ultra-low energy consumption and sewage zero-emission clean production process method Download PDFInfo
- Publication number
- CN108328757B CN108328757B CN201810248046.3A CN201810248046A CN108328757B CN 108328757 B CN108328757 B CN 108328757B CN 201810248046 A CN201810248046 A CN 201810248046A CN 108328757 B CN108328757 B CN 108328757B
- Authority
- CN
- China
- Prior art keywords
- water
- waste heat
- sewage
- inlet
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/08—Vinylidene chloride
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Treatment Of Sludge (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method belongs to the technical fields of polyvinylidene fluoride and chemical production process technology and industrial energy conservation, and aims at the conditions that a large amount of high-temperature steam is required to be consumed, a large amount of waste heat is lost in white and the process and cooling waste water is discharged in a large amount in the tower kettle preparation, washing, pressure filtration, drying, granulating and other processes of polyvinylidene fluoride production, waste heat resources are recovered in steps by adopting special sewage heat exchange-heat pump waste heat devices and other technologies, all process waste water in recovery plants by adopting membrane treatment, MVR heat pump type sewage recycling devices and other technologies, paraffin and other material resources in sludge are separated by adopting physicochemical processes, so that the comprehensive recovery and cyclic utilization of all productive sewage resources, material resources and more than 80% of process waste heat resources are realized, and the clean production type green factory mode conversion from high-energy consumption high-pollution high-emission industries to process sewage zero emission, energy consumption and extremely low water resource consumption is realized by the polyvinylidene fluoride preparation process.
Description
Technical Field
The invention relates to a polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method, and belongs to the technical fields of polyvinylidene fluoride and chemical production process technology and industrial energy conservation.
Background
Current state of the art material flow and energy flow in polyvinylidene fluoride production generally comprises a number of processes: a vinylidene fluoride (VDF) tower kettle cracking preparation flow, a polyvinylidene fluoride (PVDF) tower kettle polymerization preparation flow, a washing and filter pressing flow, a drying granulation and packing flow, a sewage treatment flow and the like, which are shown in figure 1, wherein the main material flows are as follows: the material B used as raw materials is that a VDF semi-finished product B1 is prepared by a polyvinylidene fluoride tower kettle device 5, a PVDF semi-finished product B2 is prepared by a polyvinylidene fluoride tower kettle device 4, a PVDF primary filter-pressing state B3 after washing and pressing by a primary filter press 11, a PVDF secondary filter-pressing state B4 after washing and pressing by a secondary filter press 8, and a PVDF finished product B5 packed by a granulating device 15 are dried.
The process water and sewage treatment flow is as follows: the total water of the water source (total daily consumption is about 2800t/d, the water consumption of unit production is reduced by 200 t/d), the ultra-pure water is produced into water (about 1500 t/d), the vinylidene fluoride tower kettle device 4, the vinylidene fluoride tower kettle device 5 and the steam heater 3 are heated and then are sent to the secondary filter press 8 and the primary filter press 11, and all the water discharged is collected to the sewage treatment pool 12 for in-plant sewage treatment, the standard-reaching sewage is discharged to a local sewage treatment plant, and the sludge is filled or transported out.
The drying process air flow is as follows: ambient air-air steam heater 14-drying-granulating device 15-is discharged into the atmosphere.
The main energy flows are (taking the production energy consumption of a factory with the production capacity of 5000t/y designed for one year as an example): about 0.8MPa of heat source steam A (total steam consumption per day is about 200t/d, unit energy consumption is reduced by 14.4 t/t), the vinylidene fluoride tower kettle device 4 heats materials (energy consumption is about 20 t/d), the vinylidene fluoride tower kettle device 5 heats materials (energy consumption is about 20 t/d), the steam heater 3 heats ultrapure water (energy consumption is about 140 t/d), the air steam heater 14 heats drying air inlet (energy consumption is about 20 t/d), and condensate water discharge liquid. The refrigerating machine (two types of refrigerating machines, namely, the water outlet temperature of the low-temperature refrigerating machine is minus 35 ℃ and COP1.256, the water outlet temperature of the normal-temperature refrigerating machine is 0 ℃ and COP is 3.42, and the total running COP of the system is about 1.5) serving as a main process cold source is input into the vinylidene fluoride tower kettle device 4 and the cooling materials of the vinylidene fluoride tower kettle device 5, the process heat removal and the condenser cooling heat load of compressor electric energy conversion, namely, the cooling tower and the atmosphere.
Therefore, the material flow and the energy flow show that the current polyvinylidene fluoride production belongs to the technology which consumes a large amount of high-temperature steam, but has a large amount of waste heat and waste water for process and cooling and also has a large amount of pollution discharge, belongs to the technology for the backward production with high energy consumption, high pollution and high emission, and is seriously inconsistent with the time requirement of clean production at the present day with higher and higher energy-saving and environment-friendly requirements.
Disclosure of Invention
The invention aims at solving the problems of high energy consumption, high pollution and high emission in the current polyvinylidene fluoride production, comprehensively planning and optimally designing the material flow and the energy flow, adopting the technologies of special sewage heat exchange, heat pump waste heat devices and the like to recycle waste heat resources in steps, adopting membrane treatment, MVR heat pump sewage recycling devices and the like to recycle all process wastewater in factories, adopting physicochemical technology to separate material resources such as paraffin in sludge, and realizing the comprehensive recycling and cyclic utilization of all productive sewage resources, material resources and more than 80% of process waste heat resources.
The specific description of the invention is as follows: in view of the fact that the tower kettle preparation flow, the washing and press filtration flow and the drying and granulating flow in the traditional polyvinylidene fluoride production process consume a large amount of steam energy and electric energy and discharge a large amount of waste heat, sewage and contained high-value material resources, the brand new energy and resource utilization planning method and technical measures reuse more than 80 percent of waste heat resources, partial electric energy of a process matched refrigerator and all water resources and material resources in the production process for the process or realize recycling, the polyvinylidene fluoride ultralow energy and sewage zero-emission clean production process method adopts a special sewage heat exchange technology, an absorption or split injection type heat pump heat recovery technology, a membrane treatment or heat pump sewage treatment and resource reuse technology as core technical measures to form a novel polyvinylidene fluoride energy and sewage zero-emission clean production process system, the ultrapure water C in the washing and filter-pressing process is divided into two branches after passing through the ultrapure water tank 2, wherein one branch is connected with a heated side inlet of the original steam heater 3 through a bypass valve, the other branch is connected with a heated side inlet of the primary waste heat heater 21, a heated side outlet of the primary waste heat heater 21 is connected with a heated side inlet of the secondary waste heat heater 22, a heated side outlet of the secondary waste heat heater 22 is connected with a water inlet of a condenser or an absorber of the waste heat pump 23 for filter pressing, a water outlet of the condenser or the absorber of the waste heat pump 23 for filter pressing is connected with a heated side inlet of the original steam heater 3 and a bypass valve outlet at the upper stream thereof, and the heated side outlet of the original steam heater 3 is sequentially connected with an original ultrapure water storage tank 7, the water supply port behind the water draining and storing tank 10 is connected with the water inlet of the original first-stage filter press 11, the sewage discharge port of the water draining and storing tank 10 is respectively connected with the second-stage sewage inlet of the original sewage treatment tank 12 and the heating side inlet of the second-stage waste heat heater 22, the heating side inlet of the first-stage waste heat heater 21 is connected with the water discharge port of the first-stage filter press 11 and the first-stage sewage inlet of the original sewage treatment tank 12, the heating side outlet of the first-stage waste heat heater 21 is connected with the heating side outlet of the second-stage waste heat heater 22, then is connected with the water inlet of the evaporator of the waste heat pump 23 for filter pressing, the outlet of the evaporator of the waste heat pump 23 for filter pressing is connected with the newly-added sewage inlet of the original sewage treatment tank 12, the high-temperature driving side inlet of the waste heat pump 23 for filter pressing is connected with the outlet of the steam cylinder 1 of the heat source steam A, the air inlet E of the drying granulation process is connected with the air inlet of a newly added first-stage air preheater 26 after passing through an original fan 13, the air outlet of the first-stage air preheater 26 is connected with the air inlet of a newly added second-stage air preheater 27, the air outlet of the second-stage air preheater 27 is connected with an original air steam heater 14, the air outlet of the air steam heater 14 is the same as the air inlet side of an original drying-granulating device 15, the air outlet of the drying-granulating device 15 is connected with the air inlet of a newly added exhaust waste heat recoverer 28, the air outlet of the exhaust waste heat recoverer 28 is communicated with an outlet pipe of an exhaust F, the water inlet of the first-stage air preheater 26 is connected with the water outlet of a process equipment waste heat water collecting device 24, the water outlet of the first-stage air preheater 26 is communicated with a water outlet pipe of a low-temperature waste heat water drain Dp, and the water inlets of the process equipment waste heat water collecting device 24 are respectively connected with an original vinylidene fluoride tower kettle device 5, a polyvinylidene fluoride tower kettle device 4, the original high-temperature residual water Dt formed by merging the steam condensation water of the steam heater 3 and the air steam heater 14 and the process waste heat high-temperature residual water D1 is communicated with the steam condensation water D of the newly added filter-pressing residual heat pump 23 and the cooling water residual heat pump 25, the water inlet of the secondary air preheater 27 is connected with the water outlet of the condenser or absorber of the cooling water residual heat pump 25 and the water inlet of the residual heat heating water supply R2 of the vinylidene fluoride tower kettle device 5 and the polyvinylidene fluoride tower kettle device 4, the water outlet of the secondary air preheater 27 is connected with the water inlet of the condenser or absorber of the cooling water residual heat pump 25 and the water outlet of the residual heat heating backwater R1 of the vinylidene fluoride tower kettle device 5 and the polyvinylidene fluoride tower kettle device 4, the inlet of the high-temperature driving side of the cooling water residual heat pump 25 is communicated with the heat source steam A, the evaporator inlet of the cooling water waste heat pump 25 is communicated with the medium temperature waste heat water L2 at the water outlet of the exhaust waste heat recoverer 28, the evaporator outlet of the cooling water waste heat pump 25 is communicated with the water inlet L3 of the condenser 62 of the original process refrigerator 6, the water outlet L1 of the condenser 62 is communicated with the water inlet of the exhaust waste heat recoverer 28, the water outlet of the sewage treatment tank 12 is communicated with the water inlet of the newly added sewage full recycling device 29, the ultrapure water C water outlet pipe of the sewage full recycling device 29 is communicated with the ultrapure water tank 2 and the process water equipment, the sewage full recycling device 29 and the sludge H discharged by the sewage treatment tank 12 are communicated with the newly added sludge separation recycling device 30, and the separated material outlet of the sludge separation recycling device 30 is respectively communicated with the outlet of the paraffin K1 and the outlet of other materials K2.
The primary waste heat heater 21 and the secondary waste heat heater 22 adopt special sewage heat exchanger structures.
The waste heat pump 23 for filter pressing adopts a sewage type absorption heat pump or a split injection type heat pump structure.
The cooling water waste heat pump 25 adopts an evaporator side large temperature difference type absorption heat pump or a split injection type heat pump structure.
The exhaust waste heat recoverer 28 adopts a condensing air-water heater structure special for high-humidity polluted air.
The sewage full recycling device 29 adopts an integrated water-sewage separation and ultrapure water making device consisting of pretreatment-membrane treatment-MVR heat pump sewage treatment and resource recycling devices.
The sludge separating and recycling device 30 adopts a physical and chemical paraffin separating and other material resources and a drying and recycling device.
The invention solves the problems of recycling waste heat resources, water resources, material resources and the like in the tower kettle preparation process, the washing and filter pressing process, the drying and granulating process, the sewage treatment process and the like in the polyvinylidene fluoride production, can realize the waste heat resource recycling rate of 80 percent, realize the improvement of the energy efficiency ratio of a refrigerator by more than 50 percent by reducing the temperature of cooling water, realize the full recycling of process sewage, realize the zero discharge of sewage, the separation and recycling of material resources, realize the full recycling utilization and the like. The invention can realize the mode conversion from the industry with high energy consumption, high pollution and high emission to the clean production type green factory with zero emission of process sewage and extremely low energy consumption and water resource consumption, and has the technical, economic value, environmental protection and social effects.
Meanwhile, the technical method, the device and the engineering implementation scheme thereof designed by the invention can be further popularized to similar process treatment processes in other industries, and have more general industrial application value and social and economic benefits.
Drawings
Fig. 1 is a schematic diagram of a conventional process system according to the present invention, and fig. 2 is a schematic diagram of a system according to the present invention.
The component numbers and names in fig. 1 and 2 are as follows.
The device comprises a gas separation cylinder 1, an ultrapure water tank 2, a steam heater 3, a polyvinylidene fluoride tower kettle device 4, a vinylidene fluoride tower kettle device 5, a process refrigerator 6, an evaporator 61, a condenser 62, an ultrapure water storage tank 7, a secondary filter press 8, a cooling tower 9, a drainage water storage tank 10, a primary filter press 11, a sewage treatment tank 12, a fan 13, an air steam heater 14, a drying-granulating device 15, a primary waste heat heater 21, a secondary waste heat heater 22, a waste heat pump 23 for filter pressing, a waste heat water collecting device 24 for process equipment, a waste heat pump 25 for cooling water, a primary air preheater 26, a secondary air preheater 27, an exhaust waste heat recoverer 28, a sewage full recycling device 29, a sludge separation recycling device 30, a heat source steam A, VDF semi-finished product B1, a PVDF semi-finished product B2, a PVDF primary filter press state B3, a PVDF secondary filter press state B4, a packaged PVDF finished product B5, ultrapure water C, steam condensation water D1, high temperature waste heat water Dt, low temperature waste heat Dp, waste heat E, waste heat of a sewage treatment plant E, a drainage kettle F, an exhaust waste heat G, a waste heat collector 62, a water heater K2L, a water heater 2, a water heater R2, and a water heater L2.
Detailed Description
Fig. 2 is a schematic diagram of the system of the present invention.
Specific embodiments of the invention are as follows: a process for preparing ultra-low energy consumption and zero sewage discharge by using polyvinylidene fluoride includes such steps as providing a special sewage heat exchange technology, absorption or split injection type heat pump, membrane treatment or heat pump type sewage treatment and resource reuse, washing and filter-pressing to obtain ultra-pure water C, passing through ultra-pure water tank 2, dividing it into two branches, connecting the inlet of said steam heater 3 to the inlet of said waste water tank, connecting the outlet of said waste water heater 21 to the inlet of said waste water tank, connecting the outlet of said waste water heater 22 to the condenser or absorber of said waste water heat pump 23, connecting the outlet of said waste water heat pump 23 to the inlet of said waste water tank, and the outlet of said bypass valve, connecting the outlet of said waste water heater 3 to the inlet of said waste water tank 7, the outlet of said waste water tank 10 to the inlet of said filter press 10, and the inlet of said waste water tank 11 to the inlet of said filter press 11, the evaporator outlet of the waste heat pump 23 for filter pressing is connected with the newly added sewage inlet of the original sewage treatment tank 12, the high-temperature driving side inlet of the waste heat pump 23 for filter pressing is connected with the outlet of the steam separating cylinder 1 of the heat source steam A, the air inlet E of the drying and granulating process is connected with the air inlet of the newly added first-stage air preheater 26 after passing through the original fan 13, the air outlet of the first-stage air preheater 26 is connected with the air inlet of the newly added second-stage air preheater 27, the air outlet of the second-stage air preheater 27 is connected with the original air steam heater 14, the air outlet of the air steam heater 14 is connected with the air inlet side of the original drying-granulating device 15, the air outlet of the drying-granulating device 15 is connected with the air inlet of the newly added waste heat recoverer 28, the air outlet of the waste heat recoverer 28 is connected with the outlet pipe of the air exhaust F, the water inlet of the first-stage air preheater 26 is connected with the water outlet of the process equipment waste heat water collector 24, the water inlet of the first-stage waste heat collector 26 is connected with the water outlet pipe of the low-temperature waste heat Dp, the process equipment water collector 24 is respectively connected with the water heater 5, the heat recovery tower 2, the heat pump 2 and the heat absorber 2 of the heat pump 2, the heat recovery tower 2, the water heater 2 and the cooling tower 2 are connected with the water heater 2 of the waste heat heater, the cooling tower 2 of the waste heat heater 2 of the waste heat, and the waste heat of the heat 2 of the heat pump is cooled down kettle 2, the water outlet of the secondary air preheater 27 is connected with the water inlet of a condenser or an absorber of the cooling water waste heat pump 25 and the water outlets of the waste heat heating backwater R1 of the vinylidene fluoride tower kettle device 5 and the polyvinylidene fluoride tower kettle device 4, the high-temperature driving side inlet of the cooling water waste heat pump 25 is communicated with heat source steam A, the evaporator inlet of the cooling water waste heat pump 25 is communicated with medium-temperature waste heat water L2 of the water outlet of the exhaust waste heat recoverer 28, the evaporator outlet of the cooling water waste heat pump 25 is communicated with the water inlet L3 of the condenser 62 of the original process refrigerator 6, the water outlet L1 of the condenser 62 is communicated with the water inlet of the exhaust waste heat recoverer 28, the water outlet of the sewage treatment tank 12 is communicated with the water inlet of the newly-added sewage full recycling device 29, the ultrapure water C water outlet pipe of the sewage full recycling device 29 is communicated with the ultrapure water tank 2 and process water equipment, the sludge H discharged by the sewage full recycling device 29 and the sewage treatment tank 12 is communicated with the newly-added sludge separation recycling device 30, and the separation material outlet of the sludge separation recycling device 30 is respectively communicated with the outlet of the paraffin K1 and the outlet of other materials K2.
The primary waste heat heater 21 and the secondary waste heat heater 22 adopt special sewage heat exchanger structures.
The waste heat pump 23 for filter pressing adopts a sewage type absorption heat pump structure.
The cooling water waste heat pump 25 adopts an evaporator side large temperature difference type split injection heat pump structure.
The exhaust waste heat recoverer 28 adopts a condensing air-water heater structure special for high-humidity polluted air.
The sewage full recycling device 29 adopts an integrated water-sewage separation and ultrapure water making device consisting of pretreatment-membrane treatment-MVR heat pump sewage treatment and resource recycling devices.
The sludge separating and recycling device 30 adopts a physical and chemical paraffin separating and other material resources and a drying and recycling device.
It should be noted that the present invention proposes a method for solving the recycling problems of waste heat resources, water resources and material resources by adopting heat exchange and heat pump technologies, etc., and according to this general solution, there may be different implementation measures and implementation devices with different structures, the above specific implementation is only one of them, and any other similar simple modification embodiments, such as a type selection, a serial-parallel connection mode and a number change of the waste heat recovery heat exchanger type of the filter pressing process drainage; the vapor compression type heat pump is adopted to replace an absorption type or injection type heat pump, or the number of the heat pumps is changed; the waste heat and the heating object of the heat pump are changed; or other modifications and the like which are conceivable to the ordinary skilled person, or the application of the technical means to other similar applications other than the polyvinylidene fluoride production industry in the same or similar structure, fall within the scope of the present invention.
Claims (7)
1. A polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method is characterized in that the polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method adopts a special sewage heat exchange technology, an absorption type or split type injection type heat pump heat recovery technology, a membrane treatment or heat pump sewage treatment and resource recycling technology as core technical measures to form a polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process system, wherein ultrapure water (C) of a washing and filter pressing process is divided into two branches after passing through an ultrapure water tank (2), one branch is connected with a heated side inlet of an original steam heater (3) through a bypass valve, the other branch is connected with a heated side inlet of a primary waste heat heater (21), a heated side outlet of the primary waste heat heater (21) is connected with a heated side inlet of a secondary waste heat heater (22), a heated side outlet of the secondary waste heat heater (22) is connected with a water inlet of a condenser or absorber of an original waste heat pump (23), a water outlet of the condenser or absorber of the filter pressing waste heat pump (23) is connected with a heated side inlet of the original steam heater (3) and a heated side of the original water tank (8) of the original filter press (3), the other branch is connected with a water storage tank (8) and a heated side inlet of the original water storage tank (8) of the original filter press (3) is still connected with a water storage tank (8) in sequence, and the water is discharged from the original water storage tank (3) is heated, the sewage outlet of the drainage water storage tank (10) is respectively connected with the secondary sewage inlet of the original sewage treatment tank (12) and the heating side inlet of the secondary waste heat heater (22), the heating side inlet of the primary waste heat heater (21) is connected with the water outlet of the primary filter press (11) and the primary sewage inlet of the original sewage treatment tank (12), the heating side outlet of the primary waste heat heater (21) is connected with the heating side outlet of the secondary waste heat heater (22), and then is connected with the water inlet of the evaporator of the waste heat pump (23) for filter pressing, the outlet of the evaporator of the waste heat pump (23) for filter pressing is connected with the newly-increased sewage inlet of the original sewage treatment tank (12), the high-temperature driving side inlet of the waste heat pump (23) for filter pressing is connected with the outlet of the separating cylinder (1) of the heat source steam (A), the air inlet (E) of the drying granulation flow is connected with the air inlet of the new air preheater (26) after passing through the original fan (13), the air outlet of the air preheater (26) is connected with the air inlet of the new secondary air preheater (27), the air outlet of the air preheater (27) is connected with the air inlet of the original air dryer (14), the air inlet of the drying flow is connected with the air inlet of the drying device (15), the air outlet of the drying device (15 is connected with the air inlet of the drying device (15), an air outlet of an exhaust waste heat recoverer (28) is communicated with an outlet pipe of an exhaust air (F), a water inlet of a first-stage air preheater (26) is communicated with a water outlet of a waste heat water collecting device (24) of a process device, a water outlet of the first-stage air preheater (26) is communicated with a water outlet pipe of low-temperature waste heat water discharge (Dp), a water inlet of the waste heat collecting device (24) of the process device is respectively connected with a water inlet of a waste heat heating water supply (R2) of an original vinylidene fluoride tower kettle (5), a steam heater (3), steam condensate of an air steam heater (14) and process waste heat high-temperature waste heat water (D1) which are combined, and a waste heat pump (23) for new filter pressing and a steam condensate (D) of a cooling water waste heat pump (25) are communicated, a water inlet of a second-stage air preheater (27) is communicated with a condenser or absorber of the cooling water waste heat pump (25) and a water inlet of the vinylidene fluoride tower kettle (5) and a waste heat heating water supply (R2) of the polyvinylidene fluoride tower kettle (4), a water outlet of the second-stage preheater (27) is communicated with a water inlet of the cooling water heat pump (25) and the waste heat pump (2) and the waste heat pump (heat pump) of the cooling tower 1), the evaporator inlet of the cooling water waste heat pump (25) is communicated with the medium-temperature waste heat water (L2) at the water outlet of the exhaust waste heat recoverer (28), the evaporator outlet of the cooling water waste heat pump (25) is communicated with the water inlet (L3) of the condenser (62) of the original process refrigerator (6), the water outlet (L1) of the condenser (62) is communicated with the water inlet of the exhaust waste heat recoverer (28), the water outlet of the sewage treatment tank (12) is communicated with the water inlet of the newly added sewage full recycling device (29), the water outlet pipe of the ultrapure water (C) of the sewage full recycling device (29) is communicated with the ultrapure water tank (2) and the process water equipment, and the sludge (H) discharged by the sewage full recycling device (29) and the sewage treatment tank (12) is communicated with the newly added sludge separation recycling device (30), and the separated material outlet of the sludge separation recycling device (30) is respectively communicated with the outlet of the paraffin (K1) and the outlet of other materials (K2).
2. The polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method according to claim 1, wherein the primary waste heat heater (21) and the secondary waste heat heater (22) adopt special sewage heat exchanger structures.
3. The polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method according to claim 1, wherein the waste heat pump (23) for filter pressing adopts a sewage type absorption heat pump or a split injection type heat pump structure.
4. The polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method according to claim 1, wherein the cooling water waste heat pump (25) adopts an evaporator side large temperature difference type absorption heat pump or a split type injection heat pump structure.
5. The ultra-low energy consumption and zero sewage discharge clean production process of polyvinylidene fluoride according to claim 1, wherein the exhaust waste heat recoverer (28) adopts a condensing air-water heater structure special for highly humid polluted air.
6. The polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method according to claim 1, wherein the sewage full recycling device (29) adopts an integrated water-sewage separation and ultra-pure water production device consisting of pretreatment-membrane treatment-MVR heat pump sewage treatment and resource recycling device.
7. The polyvinylidene fluoride ultra-low energy consumption and sewage zero emission clean production process method according to claim 1, wherein the sludge separation and recycling device (30) adopts a physical and chemical separation paraffin and other material resources and a drying and recycling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248046.3A CN108328757B (en) | 2018-03-24 | 2018-03-24 | Polyvinylidene fluoride ultra-low energy consumption and sewage zero-emission clean production process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248046.3A CN108328757B (en) | 2018-03-24 | 2018-03-24 | Polyvinylidene fluoride ultra-low energy consumption and sewage zero-emission clean production process method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108328757A CN108328757A (en) | 2018-07-27 |
| CN108328757B true CN108328757B (en) | 2024-02-23 |
Family
ID=62931299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810248046.3A Active CN108328757B (en) | 2018-03-24 | 2018-03-24 | Polyvinylidene fluoride ultra-low energy consumption and sewage zero-emission clean production process method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108328757B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179828B (en) * | 2018-09-03 | 2020-12-25 | 清华大学 | Fluorine chemical plant sewage zero discharge and resource recovery method based on waste heat driving |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285401A (en) * | 1995-04-13 | 1996-11-01 | Pado:Kk | Cold water or hot water supplying device having steam compressor |
| KR100569779B1 (en) * | 2004-12-27 | 2006-04-11 | 주식회사 동양에스코 | Waste heat recovery type combined heat pump unit for cold and hot water |
| CN101204641A (en) * | 2006-12-22 | 2008-06-25 | 天津工业大学 | Membrane evaporation concentrated liquid treatment system and treatment method |
| CN101318716A (en) * | 2007-06-07 | 2008-12-10 | 天津工业大学 | A membrane evaporation concentrated liquid treatment system and treatment method |
| CN102359739A (en) * | 2011-09-14 | 2012-02-22 | 张军 | Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate |
| CN205156436U (en) * | 2015-07-24 | 2016-04-13 | 东莞理工学院 | An atmospheric pressure absorber and an absorption heat pump system |
| CN107235589A (en) * | 2017-05-16 | 2017-10-10 | 北京清大天工能源技术研究所有限公司 | A kind of process based on vegetable protein beans stripping hydro-thermal pump type recovery technology |
-
2018
- 2018-03-24 CN CN201810248046.3A patent/CN108328757B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285401A (en) * | 1995-04-13 | 1996-11-01 | Pado:Kk | Cold water or hot water supplying device having steam compressor |
| KR100569779B1 (en) * | 2004-12-27 | 2006-04-11 | 주식회사 동양에스코 | Waste heat recovery type combined heat pump unit for cold and hot water |
| CN101204641A (en) * | 2006-12-22 | 2008-06-25 | 天津工业大学 | Membrane evaporation concentrated liquid treatment system and treatment method |
| CN101318716A (en) * | 2007-06-07 | 2008-12-10 | 天津工业大学 | A membrane evaporation concentrated liquid treatment system and treatment method |
| CN102359739A (en) * | 2011-09-14 | 2012-02-22 | 张军 | Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate |
| CN205156436U (en) * | 2015-07-24 | 2016-04-13 | 东莞理工学院 | An atmospheric pressure absorber and an absorption heat pump system |
| CN107235589A (en) * | 2017-05-16 | 2017-10-10 | 北京清大天工能源技术研究所有限公司 | A kind of process based on vegetable protein beans stripping hydro-thermal pump type recovery technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108328757A (en) | 2018-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101797455B (en) | Liquid environment protection energy-saving low-temperature filter and process thereof | |
| CN108644747B (en) | A medium-pressure high-temperature steam system using waste heat from printing and dyeing wastewater | |
| CN106745428B (en) | A heat-collecting solar energy multi-stage flash seawater desalination device and method | |
| CN104031793A (en) | Energy-saving system for brewing white spirit by recycling steam and brewing method thereof | |
| CN206304378U (en) | The energy-conservation MVR evaporators that a kind of vapor recompression is utilized | |
| CN108328757B (en) | Polyvinylidene fluoride ultra-low energy consumption and sewage zero-emission clean production process method | |
| CN108128827A (en) | A kind of vacuum evaporation equipment | |
| CN102226647A (en) | Cooling circulating water technology and device of vacuum system condenser of grease deodorization workshop section | |
| CN203128597U (en) | Efficient blast furnace slag-washing water waste heat recycling system adopting mintel process | |
| CN212651376U (en) | Mechanical Vapor Recompression Heat Pump Distillation System | |
| CN109179828B (en) | Fluorine chemical plant sewage zero discharge and resource recovery method based on waste heat driving | |
| CN201686513U (en) | Steam afterheat utilization unit and system for vacuum device of sea water desalination system | |
| CN205031921U (en) | Heat energy and solvent recovery system for the secondary steam of the stripper | |
| CN107854857B (en) | Multi-pass concentration and purification device and using method thereof | |
| CN102115219A (en) | Utilization device, system and method of steam waste heat of vacuum device of seawater desalination system | |
| CN206094279U (en) | Slaughterhouse is with multistage full heat recovery hot water system of refrigerating unit | |
| CN211619981U (en) | Vinyl sulfate waste water treatment and recovery system | |
| CN210832707U (en) | Dry-wet combined cooling circulating water system | |
| CN210825507U (en) | Flash evaporation and evaporation concentration system of heat pump | |
| CN209828291U (en) | Heat pump vacuum concentration system | |
| CN111056580A (en) | Vinyl sulfate waste water treatment and recovery system | |
| CN208200801U (en) | A kind of Kynoar preparation process system based on super low energy consumption | |
| CN113827997A (en) | Mechanical vapor recompression heat pump rectification system | |
| CN218821099U (en) | Dirty waste water waste heat recovery device of multistage coupling | |
| CN207748889U (en) | Double-effect heat pump film steam sewage disposal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |