CN207918475U - The device that garbage percolation concentrate is handled in conjunction with MVR - Google Patents
The device that garbage percolation concentrate is handled in conjunction with MVR Download PDFInfo
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- CN207918475U CN207918475U CN201721780349.7U CN201721780349U CN207918475U CN 207918475 U CN207918475 U CN 207918475U CN 201721780349 U CN201721780349 U CN 201721780349U CN 207918475 U CN207918475 U CN 207918475U
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- heat exchanger
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Abstract
The utility model is related to a kind of device that combination MVR handles garbage percolation concentrate, material liquid is preheated through plate heat exchanger one；Then it squeezes into plate heat exchanger two by forced circulation pump to be heated at high temperature, the liquid for being heated to certain temperature enters separator, and the steam of generation enters the cooling of condensation water tank one；It is flashed into the high-temp liquid in separator, the concentrate of generation is discharged by the discharge system of separator bottom, and the steam of generation is by entering plate heat exchanger two after compression；Into condensation water tank one steam it is condensed after the water that generates pre-heating system be pumped by condensate pump utilized again, gas enters vacuum system；Through cooling down again, on-condensible gas is discharged gas by vacuum pump.MVR is applied in the processing of RO concentrates by the utility model, greatly improves the total rate of recovery of this project, and treated that a small amount of concentrate burns into waste incineration burner hearth by MVR, thoroughly solves membranous system concentrate in garbage-leachate processing system and handles problem.
Description
Technical field
The utility model is related to field of garbage disposal, and in particular to what a kind of combination MVR handled garbage percolation concentrate
Device.
Background technology
Currently, garbage leachate processing generally uses biochemical treatment+film advanced treating, however film process is applied and is oozed in rubbish
Drip in liquid processing, although production water qualified discharge can be taken care of yourself to a certain extent, the membranous system rate of recovery generally 75% or so,
Remaining 25% or so concentrate is always the problem of industry processing.The processing of membranous system concentrate, mainly uses recharge at present
Landfill yard, but membranous system concentrate salt content is big, Refractory organic compounds are more.Such Concentrated liquid recharge landfill yard, it is long
Phase operation is gone down, and is necessarily caused membranous system water inlet salt content to increase, fouling is easy in membranous system operational process, under the cycle of operation
Drop, operation producing water water quality decline.
MVR is the abbreviation of mechanical steam recompression technology (mechanical vapor recompression), is profit
The indirect steam and its energy generated with vapo(u)rization system itself, height is promoted to by mechanical work of low-grade steam through compressor
The steam source of grade.It so recycles to vapo(u)rization system and thermal energy is provided, one to reduce the demand to outside resources is energy saving
Technology.
If MVR technologies can be applied in garbage leachate processing, it will improve the overall recovery of project, solve rubbish
The problem that membranous system concentrate is handled in rubbish leachate treatment system.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of combination MVR to the processing of garbage percolation concentrate
Device.
The technical solution of the utility model is：A kind of device that combination MVR handles garbage percolation concentrate, including preheating
System, vapo(u)rization system, discharge system, vacuum system, compressor assembly；The pre-heating system includes plate heat exchanger one, raw material
Feed pipe, raw material discharge nozzle, condensate draining pipe and condensed water water inlet pipe；Material feeding tube is equipped with feed pump and Electromagnetic Flow
Meter, raw material discharge nozzle are equipped with forced circulation pump, and the other end of raw material discharge nozzle connects vapo(u)rization system；The vapo(u)rization system includes
The feed inlet of plate heat exchanger two, separator and condensation water tank one, plate heat exchanger two is connect with raw material discharge nozzle, and by adding
Hydrothermal solution outlet tube connects separator, and for the air inlet of plate heat exchanger two by piping connection compressor assembly, exhaust outlet passes through row
Steam pipe connects condensation water tank one；The top of the separator connects discharge system by exhaust pipe connect compressor system, bottom end；
The top of the condensation water tank one connects vacuum system by escape pipe, and bottom end passes through condensed water water inlet pipe connecting plate type heat exchanger
One, condensed water water inlet pipe is equipped with condensate pump；The vacuum system includes plate heat exchanger three, condensation water tank two and vacuum
Pump, wherein the air inlet of plate heat exchanger three is connect by escape pipe with condensation water tank one, and gas outlet is connected cold by exhaust pipe
Condensation tank two, and it is equipped with condensate draining pipe, drainpipe is arranged in the bottom end of condensation water tank two, and exhaust pipe, exhaust pipe is arranged in top
It is equipped with vacuum pump.
The discharge system includes the discharging pipeline for being connected to separator bottom end and the discharging pump for being installed on discharge nozzle road.
The separator lower part is additionally provided with Matter Transfer pipe, this kind is connected on raw material discharge nozzle.
The compressor assembly includes air compressor.
The compressor assembly is equipped with air inlet and gas outlet, and air inlet is connect with separator, and gas outlet is changed with board-like
Hot device two connects.
Control system is arranged in the utility model, and the control system includes Siemens S7-300 PLC system, and setting exists
Differential pressure levelmeter, the charging pneumatic control valve being arranged on material feeding tube are set in plate heat exchanger one；Setting is arranged in separator
Steam pneumatic control valve and electromagnetic flowmeter on tracheae and differential pressure transmitter；The differential pressure levelmeter, the pneumatic adjusting of charging
Valve, steam pneumatic control valve, electromagnetic flowmeter and differential pressure transmitter with differential pressure transmitter with connect Siemens S7-
300PLC systems couple.
The Siemens S7-300 PLC system can dock DCS system.
A kind of method that combination MVR handles garbage percolation concentrate, step 1) material liquid by feed pump introduce raw material into
Expects pipe is preheated through plate heat exchanger one；Material liquid after step 2) preheating squeezes into plate heat exchanger two by forced circulation pump
Be heated at high temperature, the liquid for being heated to certain temperature enters separator, the steam generated in heating enter condensation water tank one into
Row cooling；The high-temp liquid that step 3) enters in separator is flashed, the concentrate of generation by separator bottom discharging system
The steam of system discharge, generation enters compressor assembly, and by entering plate heat exchanger two after compression, heat is provided for heat exchanger
Amount；The condensed rear water generated of steam that step 4) enters condensation water tank one is pumped into pre-heating system progress profit again by condensate pump
With gas enters vacuum system；Step 5) gas cools down again through plate heat exchanger three, condensed water discharge, the cooling liquid generated
Body is discharged by condensate draining pipe, and on-condensible gas is discharged by vacuum pump.
The utility model has the beneficial effects that：The utility model is creative to be applied to MVR in the processing of RO concentrates, no
Only greatly improve the total rate of recovery of this project, and treated that a small amount of concentrate burns into waste incineration burner hearth by MVR, thoroughly solves
It has determined membranous system concentrate processing problem in garbage-leachate processing system.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the utility model.
In figure, 1. pre-heating systems, 1-1. plate heat exchangers one, 1-2. material feeding tubes, 1-3. raw material discharge nozzles, 1-4. is cold
Condensate drainpipe, 1-5. condensed water water inlet pipes, 1-6. feed pumps, 1-7. electromagnetic flowmeters, 2. vapo(u)rization systems, 2-1. plate-type heat-exchanges
Device two, 2-2. separators, 2-3. condensation water tanks one, 2-4. heat liquid outlet tube, 2-5. gland steam exhausters, 2-6. escape pipes, 2-7. rows
Tracheae, 2-8. condensate pumps, 2-9. forced circulation pumps, 2-10. Matter Transfer pipes, 3. compressor assemblies, 4. vacuum systems, 4-1.
Plate heat exchanger three, 4-2. condensation water tanks two, 4-3. vacuum pumps, 4-4. exhaust pipes, 4-5. condensate draining pipes, 4-6. drainings
Pipe, 4-7. exhaust pipes, 5. discharge systems, 5-1. discharging pipelines, 5-2. discharging pumps.
Specific implementation mode
As shown in Fig. 1, a kind of device that combination MVR handles garbage percolation concentrate, including pre-heating system, evaporation system
System, discharge system, vacuum system, compressor assembly；The pre-heating system 1 includes plate heat exchanger one 1-1, material feeding tube 1-
2, raw material discharge nozzle 1-3, condensate draining pipe 1-4 and condensed water water inlet pipe 1-5；Material feeding tube 1-2 is equipped with feed pump 1-6
It is equipped with forced circulation pump, the other end connection evaporation system of raw material discharge nozzle 1-3 with electromagnetic flowmeter 1-7, raw material discharge nozzle 1-3
System 2；The vapo(u)rization system 2 includes two 2-1 of plate heat exchanger, separator 2-2 and one 2-3 of condensation water tank, two 2-1 of plate heat exchanger
Feed inlet connect with raw material discharge nozzle 1-3, and pass through heat liquid outlet tube 2-4 connection separator 2-2, two 2- of plate heat exchanger
1 air inlet passes through one 2-6 of gland steam exhauster 2-5 connections condensation water tank by piping connection compressor assembly 3, exhaust outlet；Described point
By exhaust pipe 2-7 connect compressors system 3, bottom end connects discharge system 5 on top from device 2-2；One 2-3 of the condensation water tank
Top by escape pipe 2-6 connections vacuum system 4, bottom end by one 1-1 of condensed water water inlet pipe 1-5 connecting plate types heat exchanger,
Condensed water water inlet pipe 1-5 is equipped with condensate pump 2-8；The vacuum system 4 includes three 4-1 of plate heat exchanger, condensation water tank two
4-2 and vacuum pump 4-3, the wherein air inlet of three 4-1 of plate heat exchanger are connect by escape pipe 2-6 with one 2-3 of condensation water tank, are gone out
Gas port is equipped with condensate draining pipe 4-5, the bottom end of two 4-2 of condensation water tank by two 4-2 of exhaust pipe 4-4 connections condensation water tank
Drainpipe 4-6 is set, and exhaust pipe 4-7 is arranged in top, and 4-7 is equipped with vacuum pump 4-3 on exhaust pipe.
The discharge system 5 is including being connected to the discharging pipeline 5-1 of the bottom ends separator 2-2 and being installed on discharging pipeline 5-1
On discharging pump 5-2.
The lower parts the separator 2-2 are additionally provided with Matter Transfer pipe 2-10, this kind is connected on raw material discharge nozzle 1-3.
The compressor assembly 3 includes air compressor.
The compressor assembly 3 is equipped with air inlet and gas outlet, and air inlet is connect with separator 2-2, gas outlet and plate
The two 2-1 connections of formula heat exchanger.
Control system is arranged in the utility model, and the control system includes Siemens S7-300 PLC system, and setting exists
Differential pressure levelmeter, the charging pneumatic control valve being arranged on material feeding tube 1-2 are set in one 1-1 of plate heat exchanger；Setting is dividing
From the steam pneumatic control valve and electromagnetic flowmeter 1-7 and differential pressure transmitter on device 2-2 exhaust pipes 2-7；The differential pressure liquid level
Meter, charging pneumatic control valve, steam pneumatic control valve, electromagnetic flowmeter 1-7 and differential pressure transmitter are equal with differential pressure transmitter
Couple with Siemens S7-300 PLC system is connect.
The Siemens S7-300 PLC system can dock DCS system.
A kind of method that combination MVR handles garbage percolation concentrate, step 1) material liquid introduce raw material by feed pump 1-6
Feed pipe 1-2 is preheated through one 1-1 of plate heat exchanger；Material liquid after step 2) preheating squeezes into plate by forced circulation pump 2-9
Two 2-1 of formula heat exchanger is heated at high temperature, and the liquid for being heated to certain temperature enters separator 2-2, the steam generated in heating
It is cooled down into one 2-3 of condensation water tank；The high-temp liquid that step 3) enters in separator 2-2 is flashed, the concentration of generation
Liquid is discharged by the discharge system 5 of the bottoms separator 2-2, and the steam of generation enters compressor assembly 3, and by entering plate after compression
Two 2-1 of formula heat exchanger, heat is provided for heat exchanger；The condensed rear water generated of steam of step 4) into one 2-3 of condensation water tank
Pre-heating system 1 is pumped by condensate pump 2-8 to be utilized again, gas enters vacuum system 4；Step 5) gas is through plate-type heat-exchange
Three 4-1 of device is cooled down again, and condensed water discharge, the cooling liquid generated is discharged by condensate draining pipe 4-5, and on-condensible gas is by vacuum
Pump 4-3 discharges.
Further, in step 3), the undesirable concentrate of concentration of generation enters raw material discharge nozzle 1-3, enters
Next time recycles.
Embodiment 1
One) material characteristic is analyzed
This programme aims at the rich new energy Jiangsu mailbox company garbage leachate processing item concentrated water design of state, material properties rubbish
Concentrated water of the rubbish percolate after RO, main ingredient are monovalence salinity.COD and scale-forming ion content are relatively low.
Two) this garbage leachate processing item RO concentrate master datas
| Project | Numerical value |
| Material source | RO concentrated waters |
| Water t/d | 88.8 |
| pH | 6-7 |
| COD(mg/L) | 700~800 |
| NH4-N(mg/L) | 3 |
| Dissolved solid (wt%) | 2.75 |
| Temperature | Room temperature |
| Discharging requires | Concentrate water outlet≤28.8T/D |
Three) selection of evaporation mode
The evaporation of forced circulation is adopted using MVR vapo(u)rization systems for the characteristic of the brine waste material of this set system processing
Condensing mode had not only met production requirement but also had reached energy-saving purpose.
Four) MVR vapo(u)rization systems principles and methods
Mechanical steam recompression (MVR) vapo(u)rization system, principle are produced using high energy efficiency vapour compression machine Compression Evaporation
Raw indirect steam, converts electrical current into thermal energy, improves the enthalpy of indirect steam, and the indirect steam for being enhanced thermal energy squeezes into evaporation system
One 1-1 of plate heat exchanger of system 1 is heated, and the existing thermal energy of indirect steam is recycled to reach, and is followed certainly by evaporator
Ring realizes the purpose of evaporative crystallization.By the forms such as PLC, industrial computer (FA), configuration come control system temperature, pressure,
Motor speed keeps system evaporation balance.From the point of view of theoretically, 80% or more is saved than conventional evaporator using MVR evaporators
The energy, save 90% or more condensed water, reduce 50% or more floor space.
MVR vapo(u)rization system features：Heat transfer efficiency is high, resistance to salting-out, less scaling, has self-cleaning function；Low energy consumption, operation
Expense is low；Floor space is small, saves installation space；The operation principle of board-like forced-circulation evaporator.
Five) material selects
The material of this system processing is intake for evaporator, and Main Salts are sodium chloride, sodium sulphate etc., remaining is water.In conjunction with
Project experiences for many years, the part contacted with material use titanium；Pipeline and distillation water pot etc. use 316L materials, platform, fresh steaming
Vapour superheated steam etc. uses Q235 materials.
Six) design parameter
Seven) technological process introduction
The basic trend of material is raw material preheating → forced-circulation evaporation → discharging.
Pre-heating system 1
Then stoste, through electromagnetic flowmeter 1-7, is exchanged heat laggard by feed pump 1-6 into pre-heating system 1 with evaporation condensed water
Enter vapo(u)rization system 1.
Vapo(u)rization system 2
The preheated system 1 of material enters forced-circulation evaporation system 2 after preheating, and board-like change is sent by forced circulation pump 2-9
In one 2-1 of hot device, liquid then enters through forced circulation increasing temperature and pressure and carries out flash vaporization, the concentration of solution in separator 2-2
It is continuously improved, until reaching concentration discharging.
Discharge system 5
Solution flashes in separator 2-2, and the feed liquid for reaching concentration is sent to mother liquor pond through discharging pump 5-2, and pipeline is no more than
20 meters, the feed liquid return system of not up to concentration continues to evaporate.
Vacuum system 4
Fixed gas in vapo(u)rization system 2 enters vacuum system 4 by vacuum pump 4-3 transmitting systems.
Compressor assembly 3
The indirect steam isolated in separator 2-2 enters compression fan, and plate heat exchanger is returned after compressing increasing temperature and pressure
One 1-1 provides heat source to vapo(u)rization system 1, and indirect steam recycles, and the not waste of the energy achievees the purpose that energy-saving.
CIP cleaning systems
The easy fouling position of each equipment such as heat exchanger, crystal separator can be cleaned with automatic or manual.Equipment is through long
The operation of phase (whether to be contained according to material or the number containing scale forming matter to determine), inevitably has scale formation
Occur, when there is scale formation and equipment evaporability is caused to decline, this system automatic cleaning system can be used, it can basis
Actual requirement can be weak acid and weak base or directly be clear water.
Eight) control system
Differential pressure levelmeter is set in one 1-1 of plate heat exchanger, charging pneumatic control valve one is added on material feeding tube
Platform increases differential pressure transmitter；Increase steam pneumatic control valve on the exhaust pipe 2-7 of separator 2-2 and combines original electromagnetic current
Gauge 1-7.
8.1) realization automatically controlled is fed：Feed rate can set a fixed value on electromagnetic flowmeter 1-7,
Pneumatic control valve can be fed by adjusting according to the liquid level of one 1-1 of plate heat exchanger of vapo(u)rization system 1 to realize, participation from
It is charging pneumatic control valve, differential pressure levelmeter and electromagnetic flowmeter 1-7 to control original paper；
8.2) realization of liquid automatic control：Realize that the open degree of charging pneumatic control valve is realized by the liquid level of setting
, the automatic control original paper of participation is charging pneumatic control valve, differential pressure transmitter etc.；
8.3) automatically controlling for steam feeds back steam pneumatic control valve to realize by pressure signal, and the automatic control of participation is former
Part is pressure transmitter, steam pneumatic control valve etc.；
8.4) other control sections：For each plate heat exchanger and separator 2-2 be equipped on the spot, the pressure and temperature of teletransmission passes
Induction device；
8.5) system is equipped with Siemens S7-300 PLC system, can dock DCS system.
Nine) operating analysis
Evaporation capacity：2500kg/h
Run time：8000 hours/year
| Project | It consumes per hour | Ton evaporation capacity consumption |
| Electric (KWH) | 144 | 57.6 ± 5% |
| Steam (kg) | 200 | 80±30 |
| Cooling water (t) | 20 | 8 ± 5% |
| Compressed air (m3) | 0.3m3/min |
Conclusion：By applying in garbage leachate reverse osmosis concentration liquid treating system for MVR creativeness, thoroughly solves rubbish
Rubbish leachate treatment system concentrate handles a great problem, actually one feels free to try and breaks through.
Claims (7)
1. a kind of device that combination MVR handles garbage percolation concentrate, which is characterized in that including pre-heating system, vapo(u)rization system,
Discharge system, vacuum system, compressor assembly；The pre-heating system includes plate heat exchanger one, material feeding tube, raw material discharging
Pipe, condensate draining pipe and condensed water water inlet pipe；Material feeding tube is equipped with feed pump and electromagnetic flowmeter, on raw material discharge nozzle
Equipped with forced circulation pump, the other end of raw material discharge nozzle connects vapo(u)rization system；The vapo(u)rization system includes plate heat exchanger two, divides
From device and condensation water tank one, the feed inlet of plate heat exchanger two is connect with raw material discharge nozzle, and by heating the connection of liquid outlet tube
Separator, for the air inlet of plate heat exchanger two by piping connection compressor assembly, exhaust outlet connects condensed water by gland steam exhauster
Case one；The top of the separator connects discharge system by exhaust pipe connect compressor system, bottom end；The condensation water tank one
Top by escape pipe connect vacuum system, bottom end pass through condensed water water inlet pipe connecting plate type heat exchanger one, condensed water water inlet
Pipe is equipped with condensate pump；The vacuum system includes plate heat exchanger three, condensation water tank two and vacuum pump, wherein plate-type heat-exchange
The air inlet of device three is connect by escape pipe with condensation water tank one, and gas outlet connects condensation water tank two by exhaust pipe, and is equipped with
Drainpipe is arranged in the bottom end of condensate draining pipe, condensation water tank two, and exhaust pipe is arranged in top, and exhaust pipe is equipped with vacuum pump.
2. the device that a kind of combination MVR according to claim 1 handles garbage percolation concentrate, which is characterized in that institute
It includes the discharging pipeline for being connected to separator bottom end and the discharging pump for being installed on discharge nozzle road to state discharge system.
3. the device that a kind of combination MVR according to claim 1 handles garbage percolation concentrate, which is characterized in that institute
It states separator lower part and is additionally provided with Matter Transfer pipe, this kind is connected on raw material discharge nozzle.
4. the device that a kind of combination MVR according to claim 1 handles garbage percolation concentrate, which is characterized in that institute
It includes air compressor to state compressor assembly.
5. the device that a kind of combination MVR according to claim 4 handles garbage percolation concentrate, which is characterized in that institute
It states compressor assembly and is equipped with air inlet and gas outlet, air inlet is connect with separator, and gas outlet is connect with plate heat exchanger two.
6. the device that a kind of combination MVR according to claim 1 handles garbage percolation concentrate, which is characterized in that also
Including control system, the control system includes Siemens S7-300 PLC system, and setting setting in plate heat exchanger one
Differential pressure levelmeter, the charging pneumatic control valve being arranged on material feeding tube；The steam on separator exhaust pipe is arranged pneumatically to adjust
Save valve and electromagnetic flowmeter and differential pressure transmitter；The differential pressure levelmeter, charging pneumatic control valve, steam pneumatic control valve,
Electromagnetic flowmeter and differential pressure transmitter with differential pressure transmitter with connect the connection of Siemens S7-300 PLC system.
7. the device that a kind of combination MVR according to claim 6 handles garbage percolation concentrate, which is characterized in that institute
DCS system can be docked by stating Siemens S7-300 PLC system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721780349.7U CN207918475U (en) | 2017-12-19 | 2017-12-19 | The device that garbage percolation concentrate is handled in conjunction with MVR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721780349.7U CN207918475U (en) | 2017-12-19 | 2017-12-19 | The device that garbage percolation concentrate is handled in conjunction with MVR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207918475U true CN207918475U (en) | 2018-09-28 |
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ID=63606719
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721780349.7U Expired - Fee Related CN207918475U (en) | 2017-12-19 | 2017-12-19 | The device that garbage percolation concentrate is handled in conjunction with MVR |
Country Status (1)
| Country | Link |
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| CN (1) | CN207918475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107857323A (en) * | 2017-12-19 | 2018-03-30 | 国丰新能源江苏有限公司 | The apparatus and method handled with reference to MVR garbage percolation concentrate |
-
2017
- 2017-12-19 CN CN201721780349.7U patent/CN207918475U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107857323A (en) * | 2017-12-19 | 2018-03-30 | 国丰新能源江苏有限公司 | The apparatus and method handled with reference to MVR garbage percolation concentrate |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20181219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |