CN108911466A - A kind of the high-efficiency dehydration processing system and method for industrial sludge hydro-thermal reaction - Google Patents
A kind of the high-efficiency dehydration processing system and method for industrial sludge hydro-thermal reaction Download PDFInfo
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- CN108911466A CN108911466A CN201810844479.5A CN201810844479A CN108911466A CN 108911466 A CN108911466 A CN 108911466A CN 201810844479 A CN201810844479 A CN 201810844479A CN 108911466 A CN108911466 A CN 108911466A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
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Abstract
The invention discloses a kind of High-efficiency dehydration treatment methods of industrial sludge hydro-thermal reaction, belong to industrial sludge harmless disposal technology field, including the transportation system, hydro-thermal reaction system and temporary tank being sequentially connected, it is connected with exhaust gas purification system and press filteration system after the temporary tank, is provided with waste water treatment system after the press filteration system；Additive throwing device is provided in the transportation system；The hydro-thermal reaction system includes at least two in parallel and hydrothermal reaction kettles that can run independently of each other；The press filteration system is provided with dewatered sludge delivery outlet.
Description
Technical field
The invention belongs to industrial sludge harmless disposal technology fields, and in particular to a kind of height of industrial sludge hydro-thermal reaction
Imitate dehydration system and method.
Background technique
With the continuous development of industry, industrial production wastewater is continuously increased, so that generated in sewage disposal process
Sludge quantity increasingly increases, and handling increasing sludge safe and environment-friendlyly is the common difficulty that the whole world faces, at sludge
In reason, burns and solidification landfill is one of common method in normal handling, but from the aspect of economy and land utilization ratio, it is dirty
High-moisture percentage limits the application of these methods in mud.Therefore, it is efficient process sludge that moisture content in sludge, which how is effectively reduced,
An emphasis.
There are filter-press dehydration, desiccation dehydration and incineration technology using more sludge dewatering technology currently on the market.
Wherein filter-press dehydration divides the method for belt filters pressing and plate compression, the also dish spiral shell machine dehydration side newly gone out in recent years
Method promotes sludge particle coagulation at big particle wadding body mainly by adding flocculant and flocculation aid（Sludge）, then pass through
The mode of filters pressing squeezes out the water in sludge, achievees the purpose that dehydration.Such method operation energy consumption is low, but time of filter pressing
It is long, and can not be by deeply dehydrating sludge, for biochemical sludge, moisture content is still 80% or so after filter-press dehydration, even more
It is high；To improve dehydration efficiency by the method, a large amount of lime need to be added into sludge, increases subsequent Treatment of Sludge in this way
Cost.
Desiccation evaporation be it is a kind of using thermal energy by the treatment process of moisture rapid evaporation in sludge, have direct desiccation,
Connect desiccation and direct-indirect joint three kinds of methods of desiccation.This three kinds of methods are all that can reduce moisture content in sludge, but all
Higher energy consumption is needed, low with water treatment efficiency is combined simultaneously for the cellular water in sludge, energy consumption is high.
Sludge incineration is that sludge heat drying is recycled the process of organic matter in high-temperature oxydation sludge using incinerator.
This treatment process is not limited only to sludge dewatering, but one thoroughly handles the process of sludge, but individually handles by incineration technology
The high sludge of moisture content or relatively difficult, the energy of consumption are also abnormal high.
Summary of the invention
It is good not only for industrial sludge dehydrating effect that the purpose of the present invention is to provide one kind, especially cellular water and combination
Water, and compare the high-efficiency dehydration processing system and method for other dewaterings industrial sludge hydro-thermal reaction that low energy consumption.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of high-efficiency dehydration processing system of industrial sludge hydro-thermal reaction, it is characterised in that：Including be sequentially connected transportation system,
Hydro-thermal reaction system and temporary tank, are connected with exhaust gas purification system and press filteration system after the temporary tank, after the press filteration system
It is provided with waste water treatment system；Additive throwing device is provided in the transportation system；The hydro-thermal reaction system includes extremely
Few two parallel connections and the hydrothermal reaction kettle that can be run independently of each other；The press filteration system is provided with dewatered sludge delivery outlet.Hydro-thermal
The parallel connection of reaction kettle refers to that respective steam pipework is mutually connected with the reaction kettle body of other side, and a hydrothermal reaction kettle pressure release is released
The hot steam put heats the sludge of another hydrothermal reaction kettle, and so on.
The hydrothermal reaction kettle includes being provided with agitating device in the heating autoclave body, institute with heating autoclave body with dissection
The interlayer of heating autoclave body is stated for filling conduction oil.
A kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction, it is characterised in that：It is anti-including supplying step, hydro-thermal
Answer step, vent gas treatment step, filters pressing processing step and waste water treatment step, it is anti-that industrial sludge by supplying step enters hydro-thermal
Answer in the hydrothermal reaction kettle of system progress hydro-thermal reaction step, the gas item that hydro-thermal reaction step generates enter vent gas treatment step,
Remaining solid liquid phase then successively carries out filters pressing processing step and waste water treatment step；
The hydro-thermal reaction step includes increasing temperature and pressure process, heat-insulation pressure keeping process and pressure leak process；
The increasing temperature and pressure process, when reaching 1/2 to the 3/4 of nominal volume into sludge quantity in hydrothermal reaction kettle, hydro-thermal is anti-
Boiled water heat temperature raising in kettle collet is answered, constantly sludge is stirred in heating up process, when vapour pressure in hydrothermal reaction kettle
Power enters the heat-insulation pressure keeping process when being increased to 160 ~ 190 DEG C up to 0.7Mpa or more, temperature of charge；
The heat-insulation pressure keeping process controls material in reactor temperature within the scope of 160 ~ 190 DEG C and keeps 120 ~ 180min；Make
Cell wall rupture in sludge is obtained, cellular water and combination water are converted into free in sludge.
The pressure leak process after heat-insulation pressure keeping process, is discharged high-temperature steam by relief valve, by reaction kettle internal pressure
Stop pressure release when within the scope of power pressure release to 0.1 ~ 0.2Mpa.
The industrial sludge being uniformly mixed with additive is at the uniform velocity delivered to hydro-thermal reaction by screw pump by the supplying step
Kettle.
The additive and industrial sludge be according to（2~5）：What 100 mass ratio was mixed.
The heat-insulation pressure keeping process is the control by controlling the internal circulating load realization of conduction oil to reactor temperature.
After the pressure leak process, be by blowing pipeline by the sludge in hydrothermal reaction kettle convey last temporary tank into
Row is temporary, waits for vent gas treatment step, filters pressing processing step and waste water treatment step.
It is the hydrothermal reaction kettle A and hydro-thermal that passes through two parallel connections and can run independently of each other in the hydro-thermal reaction step
What reaction kettle B was carried out, in hydrothermal reaction kettle A operation, hydrothermal reaction kettle B is out of service, enters pressure relief ring in hydrothermal reaction kettle A
Before section, pending mud is added into hydrothermal reaction kettle B, the hot steam of hydrothermal reaction kettle A pressure release release enters hydrothermal reaction kettle
B heats the sludge of hydrothermal reaction kettle B, and similarly, the hot steam of the release of hydrothermal reaction kettle B pressure release later is to hydro-thermal reaction
The sludge of kettle A is heated, and so on.Formation is avoided the peak hour production model, and the purpose using production of avoiding the peak hour is recycling thermal energy, is reduced
Energy consumption is handled, heat energy utilization maximization is reached.
The vent gas treatment step is pressure leak process and is delivered to the sludge in hydrothermal reaction kettle temporarily by blowing pipeline
The part fixed gas and vapor discharged during depositing slot enters exhaust treatment system after temporary tank, by vapor therein
Adsorption treatment, qualified discharge after processing are carried out with fixed gas.
The filters pressing processing step passes through pumping to filters pressing after sludge temperature is reduced within the scope of 70 ~ 95 DEG C in temporary tank
It is carried out dehydrating in machine, filters pressing pressure controls within the scope of 0.4 ~ 0.65Mpa.Moisture percentage in sewage sludge is reduced to 50% left side after filters pressing
It is right.
The waste water treatment step is that the waste water for generating filters pressing enters qualified discharge after sewage disposal system processing.
The technical program has the beneficial effect that：
Processing system provided by the present invention, pending mud are added in the temporary tank of transportation system and send through transportation system to hydro-thermal
Hydro-thermal reaction processing is carried out in reaction system, two hydrothermal reaction kettles of hydro-thermal reaction system take production of avoiding the peak hour in treatment process
Mode.Additive is uniformly added into according to the conveying capacity of material during transportation, so that additive and sludge are uniformly mixed.Processing
After mud discharging into temporary tank, discharge the exhaust gas that the generates row up to standard after exhaust gas purification system is handled in sludge process
It puts；Sludge temperature in temporary tank is reduced to after required temperature and is delivered to press filteration system progress deep dehydration processing by pump, takes off
The waste water removed enters qualified discharge after waste water treatment system further purifies；Dewatered sludge enters next processing links.
In conventional dehydration technique, moisture percentage in sewage sludge can only be reduced and cause 80% or so by pure filter-press dehydration mode, if needed
It is very high to equipment requirement to further decrease moisture content, and additive amount of medicament is very big；Although desiccation dehydration technique energy will be aqueous
Rate is reduced to very low, but belongs to pure evaporation mode, operation energy consumption is very high；In addition, the mode burned is not suitable for high-moisture percentage
Treatment of Sludge.
In the present invention, free water is converted by cellular water in sludge and in conjunction with water by the method for hydro-thermal reaction, sludge by
Solid-state and semisolid are converted into fluidised form, so that sludge dewatering is easier；Subsequent sludge pressure is ensured by the way that additive is added simultaneously
The feasibility of dehydration is filtered, and treated that sludge does not need to add flocculant again in pressure-filtering process.
Detailed description of the invention
It is of the invention aforementioned and be detailed description below and become more apparent upon when reading in conjunction with the following drawings, in attached drawing：
Fig. 1 is a kind of structural schematic diagram of preferred embodiment of processing system of the present invention.
Specific embodiment
It is further illustrated below by several specific embodiments and realizes the object of the invention technical solution, need to illustrate
It is that claimed technical solution includes but is not limited to following embodiment.
Embodiment 1
As a kind of most basic embodiment of present system, at the high-efficiency dehydration for disclosing a kind of industrial sludge hydro-thermal reaction
Reason system, such as Fig. 1 are connected with tail after the temporary tank including the transportation system, hydro-thermal reaction system and temporary tank being sequentially connected
Gas purification system and press filteration system are provided with waste water treatment system after the press filteration system；It is provided with and adds in the transportation system
Add agent throwing device；The hydro-thermal reaction system includes at least two in parallel and hydrothermal reaction kettles that can run independently of each other；Institute
It states press filteration system and is provided with dewatered sludge delivery outlet.The parallel connection of hydrothermal reaction kettle refers to respective steam pipework mutually with other side's
Reaction kettle body is connected, and the hot steam of hydrothermal reaction kettle pressure release release adds the sludge of another hydrothermal reaction kettle
Heat, and so on.Pending mud is added in the temporary tank of transportation system to send through transportation system and carry out into hydro-thermal reaction system
Hydro-thermal reaction is handled, and two hydrothermal reaction kettles of hydro-thermal reaction system take production model of avoiding the peak hour in treatment process.It was conveying
Additive is uniformly added into according to the conveying capacity of material in journey, so that additive and sludge are uniformly mixed.After treatment sludge row
It puts into temporary tank, discharges the exhaust gas generated in sludge process qualified discharge after exhaust gas purification system is handled；Sludge is temporary
Temperature is reduced to after required temperature and is delivered to press filteration system progress deep dehydration processing by pump in slot, and the waste water of removing enters useless
Qualified discharge after water treatment system further purifies；Dewatered sludge enters next processing links.
Embodiment 2
It is preferably carried out scheme as present system one kind, discloses a kind of high-efficiency dehydration processing of industrial sludge hydro-thermal reaction
System, such as Fig. 1 are connected with tail gas after the temporary tank including the transportation system, hydro-thermal reaction system and temporary tank being sequentially connected
Purification system and press filteration system are provided with waste water treatment system after the press filteration system；Addition is provided in the transportation system
Agent throwing device；The hydro-thermal reaction system includes at least two in parallel and hydrothermal reaction kettles that can run independently of each other；It is described
Press filteration system is provided with dewatered sludge delivery outlet.The parallel connection of hydrothermal reaction kettle refers to that respective steam pipework is mutually anti-with other side
Autoclave body is answered to be connected, the hot steam of hydrothermal reaction kettle pressure release release heats the sludge of another hydrothermal reaction kettle,
And so on；The hydrothermal reaction kettle includes being provided with agitating device in the heating autoclave body, institute with heating autoclave body with dissection
The interlayer of heating autoclave body is stated for filling conduction oil.
Pending mud, which is added in the temporary tank of transportation system to send through transportation system, carries out hydro-thermal into hydro-thermal reaction system
Reaction treatment, two hydrothermal reaction kettles of hydro-thermal reaction system take production model of avoiding the peak hour in treatment process.During transportation
It is uniformly added into additive according to the conveying capacity of material, so that additive and sludge are uniformly mixed.After treatment mud discharging is extremely
In temporary tank, the exhaust gas generated in sludge process qualified discharge after exhaust gas purification system is handled is discharged；Sludge is in temporary tank
Temperature is reduced to after required temperature and is delivered to press filteration system progress deep dehydration processing by pump, and the waste water of removing enters at waste water
Qualified discharge after reason system further purifies；Dewatered sludge enters next processing links.
Embodiment 3
As a kind of most basic embodiment of the method for the present invention, at the high-efficiency dehydration for disclosing a kind of industrial sludge hydro-thermal reaction
Reason method, including supplying step, hydro-thermal reaction step, vent gas treatment step, filters pressing processing step and waste water treatment step, industry
Sludge enters by supplying step carries out hydro-thermal reaction step in the hydrothermal reaction kettle of hydro-thermal reaction system, hydro-thermal reaction step is raw
At gas item enter vent gas treatment step, remaining solid liquid phase and then successively carry out filters pressing processing step and waste water treatment step；
The hydro-thermal reaction step includes increasing temperature and pressure process, heat-insulation pressure keeping process and pressure leak process；
The increasing temperature and pressure process, when reaching 1/2 to the 3/4 of nominal volume into sludge quantity in hydrothermal reaction kettle, hydro-thermal is anti-
Boiled water heat temperature raising in kettle collet is answered, constantly sludge is stirred in heating up process, when vapour pressure in hydrothermal reaction kettle
Power enters the heat-insulation pressure keeping process when being increased to 160 ~ 190 DEG C up to 0.7Mpa or more, temperature of charge；
The heat-insulation pressure keeping process controls material in reactor temperature within the scope of 160 ~ 190 DEG C and keeps 120 ~ 180min；Make
Cell wall rupture in sludge is obtained, cellular water and combination water are converted into free in sludge.
The pressure leak process after heat-insulation pressure keeping process, is discharged high-temperature steam by relief valve, by reaction kettle internal pressure
Stop pressure release when within the scope of power pressure release to 0.1 ~ 0.2Mpa.
In conventional dehydration technique, moisture percentage in sewage sludge can only be reduced and cause 80% or so by pure filter-press dehydration mode, if needed
It is very high to equipment requirement to further decrease moisture content, and additive amount of medicament is very big；Although desiccation dehydration technique energy will be aqueous
Rate is reduced to very low, but belongs to pure evaporation mode, operation energy consumption is very high；In addition, the mode burned is not suitable for high-moisture percentage
Treatment of Sludge.
In the present invention, free water is converted by cellular water in sludge and in conjunction with water by the method for hydro-thermal reaction, sludge by
Solid-state and semisolid are converted into fluidised form, so that sludge dewatering is easier；Subsequent sludge pressure is ensured by the way that additive is added simultaneously
The feasibility of dehydration is filtered, and treated that sludge does not need to add flocculant again in pressure-filtering process.
Embodiment 4
It is preferably carried out scheme as the method for the present invention one kind, discloses a kind of high-efficiency dehydration processing of industrial sludge hydro-thermal reaction
Method, including supplying step, hydro-thermal reaction step, vent gas treatment step, filters pressing processing step and waste water treatment step, industry are dirty
Mud enters by supplying step carries out hydro-thermal reaction step in the hydrothermal reaction kettle of hydro-thermal reaction system, hydro-thermal reaction step generates
Gas item enter vent gas treatment step, remaining solid liquid phase and then successively carry out filters pressing processing step and waste water treatment step；
The hydro-thermal reaction step includes increasing temperature and pressure process, heat-insulation pressure keeping process and pressure leak process；
The increasing temperature and pressure process, when reaching 1/2 to the 3/4 of nominal volume into sludge quantity in hydrothermal reaction kettle, hydro-thermal is anti-
Boiled water heat temperature raising in kettle collet is answered, constantly sludge is stirred in heating up process, when vapour pressure in hydrothermal reaction kettle
Power enters the heat-insulation pressure keeping process when being increased to 160 ~ 190 DEG C up to 0.7Mpa or more, temperature of charge；
The heat-insulation pressure keeping process controls material in reactor temperature within the scope of 160 ~ 190 DEG C and keeps 120 ~ 180min；Make
Cell wall rupture in sludge is obtained, cellular water and combination water are converted into free in sludge.
The pressure leak process after heat-insulation pressure keeping process, is discharged high-temperature steam by relief valve, by reaction kettle internal pressure
Stop pressure release when within the scope of power pressure release to 0.1 ~ 0.2Mpa.
The pressure leak process after heat-insulation pressure keeping process, is discharged high-temperature steam by relief valve, by reaction kettle internal pressure
Stop pressure release when within the scope of power pressure release to 0.1 ~ 0.2Mpa.
The industrial sludge being uniformly mixed with additive is at the uniform velocity delivered to hydro-thermal reaction by screw pump by the supplying step
Kettle.
The additive and industrial sludge be according to（2~5）：What 100 mass ratio was mixed.
The heat-insulation pressure keeping process is the control by controlling the internal circulating load realization of conduction oil to reactor temperature.
After the pressure leak process, be by blowing pipeline by the sludge in hydrothermal reaction kettle convey last temporary tank into
Row is temporary, waits for vent gas treatment step, filters pressing processing step and waste water treatment step.
It is the hydrothermal reaction kettle A and hydro-thermal that passes through two parallel connections and can run independently of each other in the hydro-thermal reaction step
What reaction kettle B was carried out, in hydrothermal reaction kettle A operation, hydrothermal reaction kettle B is out of service, enters pressure relief ring in hydrothermal reaction kettle A
Before section, pending mud is added into hydrothermal reaction kettle B, the hot steam of hydrothermal reaction kettle A pressure release release enters hydrothermal reaction kettle
B heats the sludge of hydrothermal reaction kettle B, and similarly, the hot steam of the release of hydrothermal reaction kettle B pressure release later is to hydro-thermal reaction
The sludge of kettle A is heated, and so on.Formation is avoided the peak hour production model, and the purpose using production of avoiding the peak hour is recycling thermal energy, is reduced
Energy consumption is handled, heat energy utilization maximization is reached.
The vent gas treatment step is pressure leak process and is delivered to the sludge in hydrothermal reaction kettle temporarily by blowing pipeline
The part fixed gas and vapor discharged during depositing slot enters exhaust treatment system after temporary tank, by vapor therein
Adsorption treatment, qualified discharge after processing are carried out with fixed gas.
The filters pressing processing step passes through pumping to filters pressing after sludge temperature is reduced within the scope of 70 ~ 95 DEG C in temporary tank
It is carried out dehydrating in machine, filters pressing pressure controls within the scope of 0.4 ~ 0.65Mpa.Moisture percentage in sewage sludge is reduced to 50% left side after filters pressing
It is right.
The waste water treatment step is that the waste water for generating filters pressing enters qualified discharge after sewage disposal system processing.
In conventional dehydration technique, moisture percentage in sewage sludge can only be reduced and cause 80% or so by pure filter-press dehydration mode, if needed
It is very high to equipment requirement to further decrease moisture content, and additive amount of medicament is very big；Although desiccation dehydration technique energy will be aqueous
Rate is reduced to very low, but belongs to pure evaporation mode, operation energy consumption is very high；In addition, the mode burned is not suitable for high-moisture percentage
Treatment of Sludge.
In the present invention, free water is converted by cellular water in sludge and in conjunction with water by the method for hydro-thermal reaction, sludge by
Solid-state and semisolid are converted into fluidised form, so that sludge dewatering is easier；Subsequent sludge pressure is ensured by the way that additive is added simultaneously
The feasibility of dehydration is filtered, and treated that sludge does not need to add flocculant again in pressure-filtering process.
Embodiment 5
It is preferably carried out scheme as the method for the present invention one kind, discloses a kind of high-efficiency dehydration processing of industrial sludge hydro-thermal reaction
Method includes the following steps：
1, sludge conveys：The industrial sludge being uniformly mixed with additive is at the uniform velocity delivered to hydrothermal reaction kettle by screw pump；
2, additive：In this method there are two the effects of additive：First, increase sludge in inoganic solids part content, second, make
It obtains sludge to be heated evenly in hydrothermal reaction process, reduces the generation of peculiar smell；Sludge under normal circumstances：Additive=100：（2~
5）Mass ratio may make hydro-thermal reaction treatment effect preferable.The main component of additive is the mixture of SiO2 and CaO.
3, hydro-thermal reaction：Hydro-thermal reaction divides increasing temperature and pressure, heat-insulation pressure keeping, pressure release, the several processes of blowing.
3.1 increasing temperature and pressure：After sludge quantity accounts for volume 2/3 or so in hydrothermal reaction kettle, hydrothermal reaction kettle collet is begun through
In conduction oil heat up to sludge, constantly sludge is stirred in temperature-rise period, steam pressure reaches in reaction kettle
0.7Mpa or more, while when temperature of charge is increased to 160-190 DEG C, stop heating, conduction oil carries out self-loopa in collet, enters
Holding stage；
3.2 heat-insulation pressure keeping：Control the internal circulating load of conduction oil, it is ensured that temperature of charge is that 120- is stopped within the scope of 160-190 DEG C
180min cellular water and is converted into free water in conjunction with water so that cell wall rupture in sludge, in sludge.
3.3 pressure release：After heat-insulation pressure keeping, high-temperature steam is discharged by relief valve, pressure is 0.1- in pressure release to kettle
When within the scope of 0.2Mpa, stop pressure release；
3.4 blowing：Treated that sludge is in a liquid state for warm pressure maintaining, after pressure release（Pressure is in 0.1-0.2Mpa range in kettle
It is interior）, it is temporary that sludge in hydrothermal reaction kettle by blowing pipeline enters temporary tank.
4, it avoids the peak hour production：The purpose that production of avoiding the peak hour is used in this system is recycling thermal energy, reduces processing energy consumption；Implementation
For：2 isolated operation of hydro-thermal reaction system 1 and hydro-thermal reaction system, when hydro-thermal reaction system 1 is run, hydro-thermal reaction system 2 is stopped
It only runs, before system 1 enters pressure release link, pending mud is added into hydro-thermal reaction system 2,1 pressure release of system release
Hot steam enters system 2, heats to the sludge of system 2, and similarly, the hot steam of the release of 2 pressure release of system later is to system 1
Sludge heated, and so on, and formation is avoided the peak hour production model, reaches heat energy utilization maximization.
5, vent gas treatment：The part fixed gas and vapor discharged during pressure release and blowing enters tail gas after temporary tank
Vapor therein and fixed gas are carried out adsorption treatment, qualified discharge after processing by processing system.
6, filters pressing is handled：After sludge temperature is reduced within the scope of 70-95 DEG C in temporary tank, by pumping into filter press into
Row dehydration, control filters pressing pressure are within the scope of 0.4-0.65Mpa.Moisture percentage in sewage sludge is reduced to 50% or so after filters pressing.
7, wastewater treatment：The waste water that filters pressing generates is entered into qualified discharge after sewage disposal system is handled.
Claims (10)
1. a kind of high-efficiency dehydration processing system of industrial sludge hydro-thermal reaction, it is characterised in that：Including the delivery system being sequentially connected
System, hydro-thermal reaction system and temporary tank are connected with exhaust gas purification system and press filteration system, the press filteration system after the temporary tank
After be provided with waste water treatment system；Additive throwing device is provided in the transportation system；The hydro-thermal reaction system includes
At least two parallel connections and the hydrothermal reaction kettle that can be run independently of each other；The press filteration system is provided with dewatered sludge delivery outlet.
2. a kind of high-efficiency dehydration processing system of industrial sludge hydro-thermal reaction as described in right wants 1, it is characterised in that：The water
Thermal response kettle includes that agitating device, the folder of the heating autoclave body are provided in the heating autoclave body with heating autoclave body with dissection
Layer is for filling conduction oil.
3. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction, it is characterised in that：Including supplying step, hydro-thermal reaction
Step, vent gas treatment step, filters pressing processing step and waste water treatment step, industrial sludge enter hydro-thermal reaction by supplying step
Hydro-thermal reaction step is carried out in the hydrothermal reaction kettle of system, the gas item that hydro-thermal reaction step generates enters vent gas treatment step, remains
Under solid liquid phase then successively carry out filters pressing processing step and waste water treatment step；
The hydro-thermal reaction step includes increasing temperature and pressure process, heat-insulation pressure keeping process and pressure leak process；
The increasing temperature and pressure process, when reaching 1/2 to the 3/4 of nominal volume into sludge quantity in hydrothermal reaction kettle, hydro-thermal is anti-
Boiled water heat temperature raising in kettle collet is answered, constantly sludge is stirred in heating up process, when vapour pressure in hydrothermal reaction kettle
Power enters the heat-insulation pressure keeping process when being increased to 160 ~ 190 DEG C up to 0.7Mpa or more, temperature of charge；
The heat-insulation pressure keeping process controls material in reactor temperature within the scope of 160 ~ 190 DEG C and keeps 120 ~ 180min；
High-temperature steam after heat-insulation pressure keeping process, is discharged by relief valve, reacting kettle inner pressure is let out by the pressure leak process
Stop pressure release when being depressed within the scope of 0.1 ~ 0.2Mpa.
4. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 3, it is characterised in that：It is described
The industrial sludge being uniformly mixed with additive is at the uniform velocity delivered to hydrothermal reaction kettle by screw pump by supplying step.
5. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 4, it is characterised in that：It is described
Additive and industrial sludge be according to（2~5）：What 100 mass ratio was mixed.
6. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 3, it is characterised in that：It is described
Heat-insulation pressure keeping process is the control by controlling the internal circulating load realization of conduction oil to reactor temperature.
7. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 3, it is characterised in that：It is described
After pressure leak process, it is that the sludge in hydrothermal reaction kettle is conveyed last temporary tank by blowing pipeline to keep in, waits
Carry out vent gas treatment step, filters pressing processing step and waste water treatment step.
8. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 3, it is characterised in that：It is described
It in hydro-thermal reaction step, is carried out by two parallel connections and the hydrothermal reaction kettle A that can be run independently of each other and hydrothermal reaction kettle B
, in hydrothermal reaction kettle A operation, hydrothermal reaction kettle B is out of service, before hydrothermal reaction kettle A enters pressure release link, toward hydro-thermal
Pending mud is added in reaction kettle B, the hot steam of hydrothermal reaction kettle A pressure release release enters hydrothermal reaction kettle B, to hydro-thermal reaction
The sludge of kettle B is heated, and similarly, the hot steam of the release of hydrothermal reaction kettle B pressure release later carries out the sludge of hydrothermal reaction kettle A
Heating, and so on.
9. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 3, it is characterised in that：It is described
Vent gas treatment step, during being pressure leak process and the sludge in hydrothermal reaction kettle being delivered to temporary tank by blowing pipeline
The part fixed gas and vapor of release enter exhaust treatment system after temporary tank, and vapor therein and fixed gas are carried out
Adsorption treatment, qualified discharge after processing.
10. a kind of High-efficiency dehydration treatment method of industrial sludge hydro-thermal reaction as described in right will go 3, it is characterised in that：Institute
Filters pressing processing step is stated, after sludge temperature is reduced within the scope of 70 ~ 95 DEG C in temporary tank, is taken off by pumping into filter press
Water process, filters pressing pressure control within the scope of 0.4 ~ 0.65Mpa.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111908762A (en) * | 2020-07-03 | 2020-11-10 | 樊晓瑜 | Sludge recycling treatment process |
| CN111908766A (en) * | 2020-07-03 | 2020-11-10 | 樊晓瑜 | Rapid residual sludge dewatering and drying system |
| CN112094028A (en) * | 2020-09-16 | 2020-12-18 | 山东达源环保工程有限公司 | Sludge drying system and process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908762A (en) * | 2020-07-03 | 2020-11-10 | 樊晓瑜 | Sludge recycling treatment process |
| CN111908766A (en) * | 2020-07-03 | 2020-11-10 | 樊晓瑜 | Rapid residual sludge dewatering and drying system |
| CN111908762B (en) * | 2020-07-03 | 2022-05-03 | 樊晓瑜 | Sludge recycling treatment process |
| CN112094028A (en) * | 2020-09-16 | 2020-12-18 | 山东达源环保工程有限公司 | Sludge drying system and process |
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