CN209696924U - The system for preparing adsorbent material using sludge - Google Patents
The system for preparing adsorbent material using sludge Download PDFInfo
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- CN209696924U CN209696924U CN201920158468.1U CN201920158468U CN209696924U CN 209696924 U CN209696924 U CN 209696924U CN 201920158468 U CN201920158468 U CN 201920158468U CN 209696924 U CN209696924 U CN 209696924U
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Abstract
The utility model discloses the system for preparing adsorbent material using sludge, which includes: hydro-thermal reaction device, and the hydro-thermal reaction device is with steam outlet after sludge inlet, high-temperature vapor entrance, hydro-thermal sludge outlet and hydro-thermal；Filter-pressing device, the filter-pressing device have hydro-thermal sludge inlet, filtrate (liquid and filters pressing sludge outlet, and the hydro-thermal sludge inlet is connected with the hydro-thermal sludge outlet；Pyrolysis installation, the pyrolysis installation have filters pressing sludge inlet, hot-wind inlet, pyrolytic carbon outlet, are pyrolyzed hot-blast outlet after oil gas vent and heat exchange, and the filters pressing sludge inlet is connected with the filters pressing sludge outlet；Pyrolytic carbon activates device, and the pyrolytic carbon activation device has gas vent and adsorbent material outlet after pyrolytic carbon entrance, activator entrance, activation, and the pyrolytic carbon entrance is exported with the pyrolytic carbon to be connected.The resource utilization of sludge not only may be implemented using the system, but also the adsorbent material of high-quality can be prepared.
Description
Technical field
The utility model belongs to chemical field, and in particular to a kind of system for preparing adsorbent material using sludge.
Background technique
With gradually increasing for Chinese society expanding economy and environmental consciousness, active carbon adsorption technology increasingly by
Pay attention to, such as: active carbon is except formaldehyde technology, activated carbon adsorption dioxin technology, activated carbon adsorption heavy metal technology etc..But tradition
Limitation of the absorbent charcoal material due to production technology and material itself, usual limited sorption capacity, and the active carbon one of high-quality
As need a large amount of activator, higher cost, and easily cause the corrosion and secondary pollution of equipment in process of production.Therefore,
Exploitation high-performance, inexpensive class absorbent charcoal material have great importance.
Waste of the sludge as municipal sludge, how safe disposal has become the emphasis that environment protection field is paid close attention to.It is main at present
The processing mode wanted is landfill, compost, burning etc..Landfill is relatively easy, and cost is relatively low, but needs to occupy a large amount of soil
Ground resource, polluted underground water；Compost market is pessimistic；Sludge incineration can realize the minimizing and resource utilization of sludge, but at
This height, there are secondary pollutions, and generate dioxin etc. high carcinogenics gas, extensive development are hindered.
Pyrolysis carbonization can all kill the viral harmful substance in sludge, realize maximum minimizing, and in stabilized sludge
Heavy metal is a kind of method for more thoroughly handling sludge.Importantly, the pyrolytic carbon that pyrolysis carbonization generates have it is more micro-
Hole, specific surface area is relatively large, there is the property of class active carbon.But just current result of study is found, the resulting heat of direct carbonization
Solution charcoal specific surface area is relatively small, and absorption property is poor compared with normal activated carbon.
Therefore, it is required study using the technology of sludge preparation high-quality adsorbent material.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of system for preparing adsorbent material using sludge with a novel purpose, not only may be implemented using the system
The resource utilization of sludge, and the adsorbent material of high-quality can be prepared.
In the one aspect of the utility model, it is using what sludge prepared adsorbent material the utility model proposes a kind of
System.Embodiment according to the present utility model, the system comprises:
Hydro-thermal reaction device, the hydro-thermal reaction device have sludge inlet, high-temperature vapor entrance, hydro-thermal sludge outlet
With steam outlet after hydro-thermal；
Filter-pressing device, the filter-pressing device have hydro-thermal sludge inlet, filtrate (liquid and filters pressing sludge outlet, the hydro-thermal
Sludge inlet is connected with the hydro-thermal sludge outlet；
There is filters pressing sludge inlet, hot-wind inlet, pyrolytic carbon outlet, pyrolysis oil gas to go out for pyrolysis installation, the pyrolysis installation
Hot-blast outlet after mouth and heat exchange, the filters pressing sludge inlet are connected with the filters pressing sludge outlet；
Pyrolytic carbon activates device, and the pyrolytic carbon activation device has gas after pyrolytic carbon entrance, activator entrance, activation
Outlet and adsorbent material outlet, the pyrolytic carbon entrance are connected with pyrolytic carbon outlet.
The system of adsorbent material is prepared by supplying sludge to hydro-thermal using sludge according to the utility model embodiment
It is contacted in reaction unit with high-temperature vapor and carries out hydro-thermal process, realize the broken wall of sludge, improving the same of dewatering performance of sludge
When, it realizes the rearrangement of sludge structure, solves difficult, pyrolysis energy consumption height of dehydration present in existing sludge drying pyrolytic technique etc. and ask
Topic, while pyrolyzing sludge and activation system being integrated, scheme is provided for the high value added utilization of charcoal, is improving system thermal effect
While rate, added value of product is improved, realizes the energy conservation and environmental protection and high added value of sludge treating system.It is using this as a result,
The resource utilization of sludge not only may be implemented in system, but also the adsorbent material of high-quality can be prepared.
In addition, according to the system for preparing adsorbent material using sludge of the utility model above-described embodiment can also have as
Under additional technical characteristic:
Preferably, system described above further comprises: heat exchanger, and the heat exchanger has hot-wind inlet, height after heat exchange
Temperature steam outlet and the outlet of low temperature wind, hot-wind inlet is connected with hot-blast outlet after the heat exchange after the heat exchange, the high temperature
Steam outlet is connected with the high-temperature vapor entrance.Thus, it is possible to significantly reduce system energy consumption.
Preferably, system described above further comprises: burner, and the burner has combustion gas entrance and high temperature cigarette
Gas outlet, the combustion gas entrance are connected at least one of gas vent after oil gas vent and the activation is pyrolyzed；It is described
Distribution plenum has low temperature wind entrance, high-temperature flue gas entry and hot-blast outlet, and the low temperature wind entrance exports phase with the low temperature wind
Even, the high-temperature flue gas entry is connected with the high-temperature flue gas outlet, the hot-blast outlet and the hot-wind inlet and the work
At least one of agent entrance is connected.Thus, it is possible to realize the resource utilization of material in system.
Preferably, system described above further comprises: diafiltration pond, vapor behind the diafiltration pond and the hydro-thermal
Outlet is connected at least one of the filtrate (liquid.Thus, it is possible to realize the resource utilization of material in system.
Preferably, pyrolysis installation described in system described above includes: inner cylinder, and the inner cylinder is driven by the driver
Rotatable setting, and the inner wall of the inner cylinder is equipped with baffle, and outer wall is equipped with shovelling plate, heat after the hot-wind inlet and the heat exchange
Wind outlet is located on the inner cylinder；Outer cylinder, the outer cylinder are set on the inner cylinder, and between the outer cylinder and the inner cylinder
Dry place is formed, the filters pressing sludge inlet, pyrolytic carbon outlet and the pyrolysis oil gas vent are located on the outer cylinder.
Thus, it is possible to significantly improve pyrolyzing sludge efficiency.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the system structure diagram that adsorbent material is prepared using sludge according to the utility model one embodiment；
Fig. 2 is illustrated according to the system structure for preparing adsorbent material using sludge of the utility model further embodiment
Figure；
Fig. 3 is the system structure signal that adsorbent material is prepared using sludge according to another embodiment of the utility model
Figure；
Fig. 4 is the system structure signal that adsorbent material is prepared using sludge according to another embodiment of the utility model
Figure；
Fig. 5 is to implement to utilize sludge according to the system for preparing adsorbent material using sludge of the utility model one embodiment
Prepare the method flow schematic diagram of adsorbent material；
Fig. 6 is to be implemented according to the system for preparing adsorbent material using sludge of the utility model further embodiment using dirty
The method flow schematic diagram of clay standby adsorbent material；
Fig. 7 is the system implementation utilization dirt that adsorbent material is prepared using sludge according to another embodiment of the utility model
The method flow schematic diagram of clay standby adsorbent material.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the one aspect of the utility model, it is using what sludge prepared adsorbent material the utility model proposes a kind of
System.Embodiment according to the present utility model, with reference to Fig. 1-4, which includes: hydro-thermal reaction device 100, filter-pressing device 200, heat
It solves device 300 and pyrolytic carbon activates device 400.
Embodiment according to the present utility model, with reference to Fig. 1, hydro-thermal reaction device 100 has sludge inlet 101, high-temperature water
Steam outlet 104 after vapour inlet 102, hydro-thermal sludge outlet 103 and hydro-thermal, and be suitable for contacting sludge with high-temperature vapor
Hydro-thermal reaction is carried out, vapor after hydro-thermal sludge and water heat is obtained.Inventors have found that by the way that sludge is contacted with high-temperature vapor
Hydro-thermal process is carried out, the broken wall of sludge is realized, while improving dewatering performance of sludge, realizes the rearrangement of sludge structure, is solved
The problems such as dehydration present in existing sludge drying pyrolytic technique is difficult, pyrolysis energy consumption is high, then successively by hydro-thermal pyrolyzing sludge
And priming reaction, the adsorbent material of available high-quality.Specifically, sludge can be the municipal administration that moisture content is 85~95wt%
Sludge, the temperature of high-temperature vapor are 160~200 degrees Celsius, and pressure is 1.5~3.0MPa, and the processing time is 0.5~3 hour,
And contain the elements such as a large amount of K, N, P after obtained hydro-thermal in vapor.
Embodiment according to the present utility model, with reference to Fig. 1, there is filter-pressing device 200 hydro-thermal sludge inlet 201, filtrate to go out
Mouth 202 and filters pressing sludge outlet 203, hydro-thermal sludge inlet 201 are connected with hydro-thermal sludge outlet 103, and are suitable for obtaining above-mentioned
Hydro-thermal sludge carry out filters pressing processing, obtain filtrate and filters pressing sludge.Specifically, filter-pressing device is plate and frame filter press, sheet frame pressure
The pressure of filter is 1.5~2.3MPa, and time of filter pressing is 1~5 hour, in obtained filters pressing sludge water content be 35~
45wt%, and contain the elements such as a large amount of K, N, P in obtained filtrate.
Embodiment according to the present utility model, with reference to Fig. 1, there is pyrolysis installation 300 filters pressing sludge inlet 301, hot wind to enter
Hot-blast outlet 305, filters pressing sludge inlet 301 and filters pressing after mouth 302, pyrolytic carbon outlet 303, pyrolysis oil gas vent 304 and heat exchange
Sludge outlet 203 is connected, and is suitable for by filters pressing sludge obtained above and hot wind indirect contact heat exchanger, so that filters pressing sludge is in warm
Wind action issues raw pyrolytic reaction, hot wind after obtaining pyrolytic carbon, pyrolysis oil gas and exchanging heat.Specifically, the temperature of hot wind is 600
~900 degrees Celsius, pyrolysis temperature is 500~650 degrees Celsius, and pyrolysis time is 30~90min.
A specific embodiment according to the present utility model, with reference to Fig. 1, pyrolysis installation 300 includes inner cylinder 31 and outer cylinder 32,
Inner cylinder 31 drives rotatable setting by driver (not shown), and the inner wall of inner cylinder 31 is equipped with baffle 311, and outer wall is equipped with and copies
Hot-blast outlet 305 is located on inner cylinder 31 after plate 312, hot-wind inlet 302 and heat exchange；Outer cylinder 32 is set on inner cylinder 31, and outer
Dry place 30, filters pressing sludge inlet 301, pyrolytic carbon outlet 303 and pyrolysis oil gas vent 304 are formed between cylinder 32 and inner cylinder 31
It is located on outer cylinder 32.Specifically, being first crushed through crushing device filter-pressing device is obtained filters pressing sludge, it is not high to obtain partial size
It supplies in 5 millimeters of mud granules into pyrolysis installation and carries out pyrolysis processing, and pyrolysis installation is double-barrel structure, inner cylinder rotation
Turn, outer cylinder remains stationary, and warm-air supply flows in inner cylinder into inner cylinder, and by the way that baffle is arranged in inner cylinder, such as baffle exists
It is distributed in inner cylinder along the axial and circumferential interleaved of inner cylinder, so as to increase the contact area of air-flow, improves hot wind
Heat utilization efficiency, and filters pressing sludge is formed in dry place in outer cylinder and inner cylinder and is flowed with the rotation of inner cylinder, by inside
It arranges on shovelling plate, such as shovelling plate inner tank theca on the outer wall of cylinder and is spaced apart along the axial and circumferential of inner cylinder, and adjacent two
Row's shovelling plate is interspersed, and is constantly stirred filters pressing sludge, and promotes to outlet.
Embodiment according to the present utility model, with reference to Fig. 1, pyrolytic carbon, which activates device 400, to be had pyrolytic carbon entrance 401, lives
Gas vent 403 and adsorbent material outlet 404 after agent entrance 402, activation, pyrolytic carbon entrance 401 exports 303 phases with pyrolytic carbon
Even, and it is suitable for contacting pyrolytic carbon obtained above into generation priming reaction, gas and adsorbent material after being activated with activator.
Specifically, activator is the gaseous mixture containing high-temperature vapor and carbon dioxide, pyrolytic carbon realizes work under the action of gaseous mixture
Change, increases specific surface area and avoid the use of other expensive types activators to improve its absorption property, can be greatly reduced
The cost of active carbon, the temperature of activator are 790~950 degrees Celsius.
The system of adsorbent material is prepared by supplying sludge to hydro-thermal using sludge according to the utility model embodiment
It is contacted in reaction unit with high-temperature vapor and carries out hydro-thermal process, realize the broken wall of sludge, improving the same of dewatering performance of sludge
When, it realizes the rearrangement of sludge structure, solves difficult, pyrolysis energy consumption height of dehydration present in existing sludge drying pyrolytic technique etc. and ask
Topic, while pyrolyzing sludge and activation system being integrated, scheme is provided for the high value added utilization of charcoal, is improving system thermal effect
While rate, added value of product is improved, realizes the energy conservation and environmental protection and high added value of sludge treating system.It is using this as a result,
The resource utilization of sludge not only may be implemented in system, but also the adsorbent material of high-quality can be prepared.
Embodiment according to the present utility model, with reference to Fig. 2, above system further comprises: heat exchanger 500, wherein heat exchange
Device 500 has hot-wind inlet 501, high-temperature vapor outlet 502 and low temperature wind outlet 503 after heat exchange, hot-wind inlet 501 after heat exchange
It is connected with hot-blast outlet 305 after heat exchange, high-temperature vapor outlet 502 is connected with high-temperature vapor entrance 102, and is suitable for be pyrolyzed
Water after exchanging heat obtained in device in hot wind and heat exchanger carries out indirect heat exchange, obtains high-temperature vapor and low temperature wind, and will
Obtained high-temperature vapor, which supplies into water treatment facilities to contact with sludge, carries out hydro-thermal reaction.As a result, by by pyrolysis installation
Obtained in exchange heat after warm-air supply to heat exchanger and water carry out indirect heat exchange, high-temperature vapor is obtained, so that hot wind after heat exchange
Waste heat it is available make full use of, and obtained high-temperature vapor is used for hydro-thermal reaction device, can be significantly reduced and be
System energy consumption cost.
Embodiment according to the present utility model, with reference to Fig. 3, above system further comprises: burner 600 and distribution plenum
700。
There is combustion gas entrance 601 and high-temperature flue gas 602 to go out for one embodiment according to the present utility model, burner 600
Mouthful, combustion gas entrance 601 is connected at least one of gas vent 403 after pyrolysis oil gas vent 304 and activation, and suitable for by
At least one of gas burns after the activation that pyrolysis oil gas and the priming reaction that pyrolytic reaction obtains obtain, and obtains high temperature
Flue gas.Thus, it is possible to realize the resource utilization of the internal system energy.Specifically, the main component of pyrolysis oil gas is H2、CO、
CH4And CnHm；Gas componant is mainly H after the activation that pyrolytic carbon activation generates2, CO, while can according to need the clean combustion of supplement
Material, such as coal gas etc. after natural gas, synthesis gas, purification.As a result, by being produced after the pyrolysis oil gas that generates pyrolytic process and activation
Gas, which is supplied to burner, after raw activation burns, and gas is remaining after on the one hand can making full use of pyrolysis oil gas and activating
Heat, while the dependence of system external circle is reduced, on the other hand, gas is rich in H after the activation that pyrolytic carbon activation generates2And CO, it can be with
Gas heating value is improved, to greatly reduce heat consumption.
Further embodiment according to the present utility model, distribution plenum 700 have low temperature wind entrance 701, high-temperature flue gas entry
702 and hot-blast outlet 703, low temperature wind entrance 701 is connected with low temperature wind outlet 503, and high-temperature flue gas entry 702 goes out with high-temperature flue gas
Mouth 602 is connected, and hot-blast outlet 703 is connected at least one of hot-wind inlet 302 and activator entrance 402, and being suitable for will be upper
The high-temperature flue gas indirect heat exchange that low temperature wind that heat exchanger obtains and burner obtain is stated, obtains hot wind, and by a part of hot wind
Supply is used into pyrolysis installation as heat medium, and another part of hot wind is supplied into pyrolytic carbon activation device as work
Agent uses.As a result, by by burner combustion be pyrolyzed high-temperature flue gas that at least one of gas after oil gas and activation obtains and
Hot wind (rich in carbon dioxide and high-temperature vapor) after the low temperature wind heat exchange that above-mentioned heat exchanger obtains is as pyrolytic carbon activation dress
Activator in setting uses, and can realize that system internal resourcesization utilize while reducing activator cost.
Embodiment according to the present utility model, with reference to Fig. 4, above system further comprises diafiltration pond 800, is percolated pond
800 are connected at least one of steam outlet 103 and filtrate (liquid 202 after hydro-thermal.Specifically, containing in vapor after hydro-thermal
There are the elements such as a large amount of K, N, P, also contains the elements such as a large amount of K, N, P in filtrate, can be diluted after collection as organic multiple
Hefei.
It is selected from down as described above, can be had according to the system for preparing adsorbent material using sludge of the utility model embodiment
At least one the advantages of column:
(1) sludge passes through hydrothermal pretreatment, realizes the broken wall of sludge, improves dewatering performance of sludge, rear cooperative mechanical dehydration
Mode moisture can be down to 40% hereinafter, and institute's the mount of using heat strengthen making full use of for pyrolysis installation heat medium tail gas, greatly
Sludge dewatering energy consumption is reduced greatly；
(2) for the pyrolysis installation that pyrolysis uses for inner cylinder rotating, outer cylinder is motionless, and spaced and parallel distribution is arranged in side outer tube
Shovelling plate increase the stirring of material while improving heat transference efficiency, greatly improve connecing for heat medium and material
Contacting surface product improves pyrolysis efficiency；
(3) by the coupling of pyrolyzing sludge and pyrolytic carbon activation, the heat that can be directly carried using pyrolytic carbon, further
Improve system thermal efficiency；
(4) heating carrier recycles in system, high/low temperature cooperation, in addition to a small amount of efflux gas, other thermal loss
It is few；It is resulting after activation to be rich in H2Burner combustion is returned to gas after the activation of CO, not only can use the heat of activation gas itself
Amount, also can be improved the calorific value of gas, greatly reduce the heat consumption of pyrolytic carbon activation.
(5) high-temperature vapor and carbon dioxide are reacted with the carbon black in pyrolyzing sludge charcoal, increase the specific surface area of charcoal,
Improve active carbon quality；
(6) heat utilization of sludge hydro-thermal process, pyrolyzing sludge and pyrolytic carbon activation forms closed cycle, efflux gas amount
It is small；Nutrient is rich in outer draining, resourcebility utilizes；Without outlet solid slag, environmental pollution is small.
In order to facilitate understanding, implement to prepare using sludge to using the above-mentioned system for preparing adsorbent material using sludge below
The method of adsorbent material is described.Embodiment according to the present utility model, with reference to Fig. 5-7, this method comprises:
S100: sludge is contacted with high-temperature vapor and carries out hydro-thermal process
In the step, sludge is contacted with high-temperature vapor and carries out hydro-thermal reaction, water steams after obtaining hydro-thermal sludge and water heat
Gas.Inventors have found that carrying out hydro-thermal process by contacting sludge with high-temperature vapor, the broken wall of sludge is realized, it is dirty improving
While mud dewatering, realize the rearrangement of sludge structure, solve present in existing sludge drying pyrolytic technique dehydration it is difficult,
It is pyrolyzed the problems such as energy consumption is high, then successively by hydro-thermal pyrolyzing sludge and priming reaction, the adsorbent material of available high-quality.Tool
Body, sludge can be the municipal sludge that moisture content is 85~95wt%, and the temperature of high-temperature vapor is 160~200 degrees Celsius,
Pressure be 1.5~3.0MPa, processing the time be 0.5~3 hour, and after obtained hydro-thermal in vapor containing a large amount of K, N,
The elements such as P.
S200: hydro-thermal sludge is subjected to filters pressing processing
In the step, hydro-thermal sludge obtained above is subjected to filters pressing processing, obtains filtrate and filters pressing sludge.Specifically,
Filter-pressing device is plate and frame filter press, and the pressure of plate and frame filter press is 1.5~2.3MPa, and time of filter pressing is 1~5 hour, is obtained
Water content is 35~45wt% in filters pressing sludge, and contains the elements such as a large amount of K, N, P in obtained filtrate.
S300: by filters pressing sludge and hot wind indirect contact heat exchanger
In the step, by filters pressing sludge obtained above and hot wind indirect contact heat exchanger, so that filters pressing sludge is in hot wind
Effect issues raw pyrolytic reaction, hot wind after obtaining pyrolytic carbon, pyrolysis oil gas and exchanging heat.Specifically, the temperature of hot wind be 600~
900 degrees Celsius, pyrolysis temperature is 500~650 degrees Celsius, and pyrolysis time is 30~90min.Pressure-filtering process is being obtained into filters pressing dirt
Mud is first crushed through crushing device, is obtained mud granule of the partial size not higher than 5 millimeters and is carried out pyrolysis processing again.
S400: pyrolytic carbon is mixed with activator carries out priming reaction
In the step, pyrolytic carbon obtained above is contacted with activator, priming reaction occurs, after activate gas with
Adsorbent material.Specifically, activator is the gaseous mixture containing high-temperature vapor and carbon dioxide, effect of the pyrolytic carbon in gaseous mixture
Lower realization activation, increases specific surface area to improve its absorption property and avoids the use of other expensive types activators, pole
The cost of big reduction active carbon, the temperature of activator are 790~950 degrees Celsius.
The method of adsorbent material is prepared by supplying sludge to hydro-thermal using sludge according to the utility model embodiment
It is contacted in reaction unit with high-temperature vapor and carries out hydro-thermal process, realize the broken wall of sludge, improving the same of dewatering performance of sludge
When, it realizes the rearrangement of sludge structure, solves difficult, pyrolysis energy consumption height of dehydration present in existing sludge drying pyrolytic technique etc. and ask
Topic, while pyrolyzing sludge and activation system being integrated, scheme is provided for the high value added utilization of charcoal, is improving system thermal effect
While rate, added value of product is improved, realizes the energy conservation and environmental protection and high added value of sludge treating system.The party is used as a result,
The resource utilization of sludge not only may be implemented in method, but also the adsorbent material of high-quality can be prepared.
Embodiment according to the present utility model, with reference to Fig. 6, the above method further comprises:
S500: hot wind after heat exchange and water are exchanged heat, and high-temperature vapor is supplied into the step S100 step, will
Water after exchanging heat obtained in pyrolytic process in hot wind and heat exchanger carries out indirect heat exchange, obtains high-temperature vapor and low temperature wind,
And obtained high-temperature vapor is supplied to contact into step S100 with sludge and carries out hydro-thermal reaction.As a result, by that will be pyrolyzed
Warm-air supply to heat exchanger and water carries out indirect heat exchange after exchanging heat obtained in journey, obtains high-temperature vapor, so that heat after heat exchange
The waste heat of wind is available to be made full use of, and obtained high-temperature vapor is used for water-heat process, and system can be significantly reduced
Energy consumption cost.
Embodiment according to the present utility model, with reference to Fig. 7, the above method further comprises:
S600: at least one of gas after pyrolysis oil gas and activation is burnt
In the step, after the activation that pyrolysis oil gas and priming reaction that pyrolytic reaction obtains are obtained in gas at least it
One burns, and obtains high-temperature flue gas.Thus, it is possible to realize the resource utilization of the internal system energy.Specifically, pyrolysis oil gas
Main component be H2、CO、CH4And CnHm；Gas componant is mainly H after the activation that pyrolytic carbon activation generates2, CO, while can be with
Coal gas etc. after supplement clean fuel, such as natural gas, synthesis gas, purification as needed.As a result, by generating pyrolytic process
Gas, which is supplied to burner, after the activation generated after pyrolysis oil gas and activation burns, and on the one hand can make full use of pyrolysis oil
The waste heat of gas after gas and activation, while the dependence of system external circle is reduced, on the other hand, gas after the activation that pyrolytic carbon activation generates
Body is rich in H2And CO, gas heating value can be improved, to greatly reduce heat consumption.
S700: high-temperature flue gas and low temperature wind are exchanged heat, and hot wind is respectively fed in step S300 and step S400
In the step, the low temperature wind that above-mentioned heat exchanger obtains and the high-temperature flue gas indirect heat exchange that burner obtains obtain
Hot wind, and a part supply of hot wind is used into step S300 pyrolytic process as heat medium, by another portion of hot wind
Supply is divided to use to step S400 activation process as activator.As a result, by will burner combustion be pyrolyzed oil gas and activation after
Hot wind after the low temperature wind heat exchange that the high-temperature flue gas and above-mentioned heat exchanger that at least one of gas obtains obtain is (rich in carbon dioxide
And high-temperature vapor) used as the activator in pyrolytic carbon activation device, it can be realized while reducing activator cost
System internal resourcesization utilize.
It should be noted that the method for preparing adsorbent material using sludge of the application, which can be, utilizes dirt using above-mentioned
The system of clay standby adsorbent material, therefore above-mentioned be directed to prepares feature and advantage described in the system of adsorbent material using sludge
It is equally applicable to the method for preparing adsorbent material using sludge, details are not described herein again.
Below with reference to specific embodiment, the utility model is described, it should be noted that these embodiments are only
Descriptive, without limiting the utility model in any way.
Embodiment 1
The municipal sludge of moisture content 85wt% is placed in hydro-thermal reaction device, and 160 degrees Celsius of high-temperature vapor,
120min is handled under 1.5MPa, sludge squeezes into surge tank through pump after processing, squeezes into plate and frame filter press after conditioned, presses in 1.5MPa
Under power filters pressing 5h obtain water content 40wt% sludge bulking, by be crushed to≤5mm after enter pyrolyzing sludge device；Obtained by filters pressing
Filtrate contain a large amount of K, N, P, can be diluted after collection as organic compound fertilizer；Sludge is 500 in pyrolysis oven after broken
It is pyrolyzed 90min (850 degrees Celsius of hot blast temperature) under degree Celsius, hot wind (350- after acquisition pyrolysis gas oil gas, pyrolytic carbon and heat exchange
450 degrees Celsius), pyrolysis oil gas generates high-temperature flue gas, the direct high temperature of pyrolytic carbon as burning in fuel direct reuse to burner
It is delivered in pyrolytic carbon activation device, activates, obtain under 850 degrees Celsius of the gaseous mixture containing high-temperature vapor and carbon dioxide
Take specific surface area 199.37m2The carbon-based adsorbent material of/g is rich in H after activation2Burner is back to use with gas after the activation of CO to carry out
Burning recycles, and hot wind obtains high-temperature vapor and supply to hydro-thermal reaction in heat exchanger with after water heat exchange after obtained heat exchange
It is used in device, the low temperature wind (100-200 degrees Celsius) that the high-temperature flue gas heat exchanging device that burner obtains obtains is preheated, and is obtained
To hot wind (750-950 degrees Celsius), enter pyrolyzing sludge device respectively as heat medium and activator according to a certain percentage
Device is activated with pyrolytic carbon.
Embodiment 2
The municipal sludge of moisture content 90wt% is placed in hydro-thermal reaction device, and 200 degrees Celsius of high-temperature vapor,
30min is handled under 2.5MPa, sludge squeezes into surge tank through pump after processing, plate and frame filter press is squeezed into after conditioned, in 2MPa pressure
Lower filters pressing 4h obtains the sludge bulking of water content 35wt%, by be crushed to≤5mm after enter pyrolyzing sludge device；Filters pressing is resulting
Filtrate contains a large amount of K, N, P, can be diluted after collection as organic compound fertilizer；Sludge 650 is taken the photograph in pyrolysis oven after broken
It is pyrolyzed 45min (950 degrees Celsius of hot blast temperature) under family name's degree, hot wind (400-450 after acquisition pyrolysis gas oil gas, pyrolytic carbon and heat exchange
Degree Celsius), pyrolysis oil gas generates high-temperature flue gas, the direct high temperature conveying of pyrolytic carbon as burning in fuel direct reuse to burner
To pyrolytic carbon activation device, is activated under 950 degrees Celsius of the gaseous mixture containing high-temperature vapor and carbon dioxide, obtain ratio
Surface area 302.54m2The carbon-based adsorbent material of/g is rich in H after activation2Burner is back to use with gas after the activation of CO to burn
It recycles, hot wind obtains high-temperature vapor and supply to hydro-thermal reaction device in heat exchanger with after water heat exchange after obtained heat exchange
Middle use, the low temperature wind (130-200 degrees Celsius) that the high-temperature flue gas heat exchanging device that burner obtains obtains are preheated, and heat is obtained
Wind (850-950 degrees Celsius), enters pyrolyzing sludge device and heat respectively as heat medium and activator according to a certain percentage
It solves carbon and activates device.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (5)
1. a kind of system for preparing adsorbent material using sludge characterized by comprising
Hydro-thermal reaction device, the hydro-thermal reaction device have sludge inlet, high-temperature vapor entrance, hydro-thermal sludge outlet and water
Steam outlet after heat；
Filter-pressing device, the filter-pressing device have hydro-thermal sludge inlet, filtrate (liquid and filters pressing sludge outlet, the hydro-thermal sludge
Entrance is connected with the hydro-thermal sludge outlet；
Pyrolysis installation, the pyrolysis installation have filters pressing sludge inlet, hot-wind inlet, pyrolytic carbon outlet, pyrolysis oil gas vent and
Hot-blast outlet after heat exchange, the filters pressing sludge inlet are connected with the filters pressing sludge outlet；
Pyrolytic carbon activates device, and the pyrolytic carbon activation device has gas vent after pyrolytic carbon entrance, activator entrance, activation
It is exported with adsorbent material, the pyrolytic carbon entrance is connected with pyrolytic carbon outlet.
2. system according to claim 1, which is characterized in that further comprise:
Heat exchanger, the heat exchanger has hot-wind inlet, high-temperature vapor outlet and the outlet of low temperature wind after heat exchange, after the heat exchange
Hot-wind inlet is connected with hot-blast outlet after the heat exchange, and the high-temperature vapor outlet is connected with the high-temperature vapor entrance.
3. system according to claim 2, which is characterized in that further comprise:
Burner, the burner have combustion gas entrance and high-temperature flue gas outlet, and the combustion gas entrance goes out with pyrolysis oil gas
Mouthful it is connected at least one of gas vent after the activation；
Distribution plenum, the distribution plenum have low temperature wind entrance, high-temperature flue gas entry and hot-blast outlet, the low temperature wind entrance and institute
It states the outlet of low temperature wind to be connected, the high-temperature flue gas entry is connected with the high-temperature flue gas outlet, the hot-blast outlet and the heat
At least one of wind entrance and described activator entrance are connected.
4. system according to claim 1, which is characterized in that further comprise:
It is percolated pond, the diafiltration pond and at least one of steam outlet and the filtrate (liquid phase after the hydro-thermal
Even.
5. system according to claim 1, which is characterized in that the pyrolysis installation includes:
Inner cylinder, the inner cylinder drives rotatable setting by driver, and the inner wall of the inner cylinder is equipped with baffle, and outer wall is equipped with
Hot-blast outlet is located on the inner cylinder after shovelling plate, the hot-wind inlet and the heat exchange；
Outer cylinder, the outer cylinder are set on the inner cylinder, and form dry place between the outer cylinder and the inner cylinder, described
Filters pressing sludge inlet, pyrolytic carbon outlet and the pyrolysis oil gas vent are located on the outer cylinder.
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| CN109647341A (en) * | 2019-01-29 | 2019-04-19 | 北京云水浩瑞环境科技有限公司 | The system and method for preparing adsorbent material using sludge |
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