CN103693839B - Method for sludge treatment and treatment system thereof - Google Patents

Method for sludge treatment and treatment system thereof Download PDF

Info

Publication number
CN103693839B
CN103693839B CN201410006626.3A CN201410006626A CN103693839B CN 103693839 B CN103693839 B CN 103693839B CN 201410006626 A CN201410006626 A CN 201410006626A CN 103693839 B CN103693839 B CN 103693839B
Authority
CN
China
Prior art keywords
gas
mud
heating unit
sludge
retort
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410006626.3A
Other languages
Chinese (zh)
Other versions
CN103693839A (en
Inventor
吴道洪
阮立明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Shenyuan environmental protection Co. Ltd.
Original Assignee
BEIJING SHENWU ENVIRONMENT ENERGY TECHNOLOGY GROUP Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING SHENWU ENVIRONMENT ENERGY TECHNOLOGY GROUP Co Ltd filed Critical BEIJING SHENWU ENVIRONMENT ENERGY TECHNOLOGY GROUP Co Ltd
Priority to CN201410006626.3A priority Critical patent/CN103693839B/en
Publication of CN103693839A publication Critical patent/CN103693839A/en
Application granted granted Critical
Publication of CN103693839B publication Critical patent/CN103693839B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of method for sludge treatment and treatment system thereof, described method for sludge treatment comprises the following steps: S1, provide mud through processed, and described mud is carried out drying and processing, obtains drying mud; S2, described oven dry mud is carried out destructive distillation, generate oil gas product and solid product; S3, described oil gas product is carried out condensation process, obtain carbonization gas, tar and sewage, described solid product is carried out sorting, obtain semicoke and residue; S4, will the carbonization gas produced in described step S3 purify after be stored in gas-holder; And S5, the tar produced, sewage and semicoke carried out subsequent disposal and recycle in described step S3.According to the method for sludge treatment of the embodiment of the present invention, compared to the method for sludge incineration, environmentally friendly, considerably reduce fume emission and dust discharge, stop the pollution of dioxin to environment, and the danger wastes such as a large amount of flying dusts can not be produced.

Description

Method for sludge treatment and treatment system thereof
Technical field
The present invention relates to technical field of sludge treatment, more specifically, relate to a kind of method for sludge treatment and treatment system thereof.
Background technology
The sedimentable matter produced in municipal effluent and During Industrial Wastewater Treatment Process, solid matter, suspended matter, colloidalmaterial contained by comprising in sewage and the sediment separated from water, be referred to as mud.In sewage treatment process, the treatment process of mud comprises primary treatment and the finally process such as landfill, Land_use change such as concentrated, the digestion of mud, dehydration, mummification and burning.
Water content is more than 94% after concentrated, digestion process for mud, and volume is very large.Sludge dewatering can remove planar water in mud and capillary water, makes sludge moisture content be reduced to about 80%, is convenient to transport and subsequent disposal.
Sludge drying technique can make sludge moisture content be down to about 30% by about 80%, forms particle or powdery stable prod simultaneously, after drying and other treatment mud the characteristic such as peculiar smell, pathogenic agent, flowing be improved significantly.
Sludge incineration technology uses fuel to be burned by the mud after mummification by incinerator, the volume of mud can be made to reduce to minimize, do not need to take large quantity space, organism after burning in mud is decomposed, kill pathogenic agent, only the inorganics of remaining seldom amount becomes burning ash, and the final material needing to dispose is less.But burn and need to consume a large amount of energy, the cost of burning and running cost are all very high.In addition, burning can cause the discharge of the Hazardous substances such as heavy metal and Dioxins.
Sludge landfill characteristics technology is by the impact of component in mud, and because the source of mud is complicated, the substances content such as heavy metal are unstable, constrain the development of Land_use change technology.
Sludge landfill technology is the final process means of all specific resistance to filtration technology, needs the process problem solving percolate and landfill biogas.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of environmentally friendly and method for sludge treatment that running cost is low.
Another object of the present invention be to propose a kind of pollute little, energy consumption is low and the sludge treating system that running cost is low.
The method for sludge treatment of embodiment according to a first aspect of the present invention, comprises the following steps: S1, provide mud through processed, and described mud is carried out drying and processing, obtains drying mud; S2, described oven dry mud is carried out destructive distillation, generate oil gas product and solid product; S3, described oil gas product is carried out condensation process, obtain carbonization gas, tar and sewage, described solid product is carried out sorting, obtain semicoke and residue; S4, will the carbonization gas produced in described step S3 purify after be stored in gas-holder; And S5, the tar produced, sewage and semicoke carried out subsequent disposal and recycle in described step S3.
According to the method for sludge treatment of the embodiment of the present invention, before destructive distillation, first drying and processing is carried out to mud, reduce sludge moisture content, product calorific value can be improved, reduce the heat that mud absorbs in carbonization process; In addition, the destructive distillation product carbonization gas that mud destructive distillation produces, tar and semicoke, not only can as fuel, and can sell as industrial raw material, have than the better economic worth of generating, compared to the method for sludge incineration, environmentally friendly, considerably reduce fume emission and dust discharge, stop the pollution of dioxin to environment, and the danger wastes such as a large amount of flying dusts can not be produced.
In addition, according to the method for sludge treatment of the embodiment of the present invention, following additional technical characteristic can also be had:
According to one embodiment of present invention, in step S1, described mud is dried and realized by dryer.
Alternatively, described step S2 comprises: S21, described oven dry mud is carried out processed compressed, obtains block or cylindric mud raw material; S22, described mud raw material is carried out destructive distillation, generate oil gas product and solid product.
Alternatively, described step S22 is realized by gas retort, has heating unit in described gas retort, and described heating unit comprises heating tube.
According to one embodiment of present invention, described gas-holder is connected to be passed in described heating unit by described carbonization gas with described heating unit.
Alternatively, described heating unit is connected with described dryer and passes in described dryer with the flue gas of being discharged by described heating unit.
Further, pass into flue gas purifying equipment after mud heat exchange to be dried in the described heating unit flue gas of discharging and described dryer to purify.
According to one embodiment of present invention, by described mud raw material even stone in described gas retort, described layer thickness is 50 ~ 400mm.
Alternatively, the pyrolysis temperature in described gas retort is 400 ~ 700 DEG C.
Further, described mud raw material stops 0.5 ~ 2h under described pyrolysis temperature.
According to one embodiment of present invention, described gas retort has discharging mechanism, and described solid product is discharged by described discharging mechanism.
Alternatively, described gas retort is rotary hearth furnace.
According to one embodiment of present invention, in described step S2, described mud carries out destructive distillation under anaerobic state.
The sludge treating system of embodiment according to a second aspect of the present invention, comprising: dehydration equipment, and described dehydration equipment is used for described sludge dewatering; Dryer, described dryer is used for the mud after by dehydration and carries out drying and processing to obtain drying mud; Extrusion forming device, carries out processed compressed by described oven dry mud after described extrusion forming device receives described oven dry mud, obtains block or cylindric mud raw material; Feed bin, described feed bin is connected with described extrusion forming device by conveyor; Gas retort, the downstream that described gas retort is connected to described feed bin is to receive after the raw material that feeds from described feed bin by described raw material destructive distillation to generate oil gas product and solid product, and wherein said solid product comprises semicoke and residue; Condensing works, described oil gas product is lowered the temperature by the downstream that described condensing works is connected to described gas retort after receiving described oil gas product; Tar separation equipment, described tar separation equipment be connected with described condensing works with after the oil gas product received after the cooling that feeds from described condensing works by the oil gas product separation after described cooling to obtain carbonization gas, tar and sewage; Gas-holder, described gas-holder is for storing the carbonization gas after purification; And finishing apparatus, described finishing apparatus carries out subsequent disposal to sewage, tar and semicoke and recycles.
According to the sludge treating system of the embodiment of the present invention, significantly can be reduced the water content in mud by dehydration equipment and dryer, reduce the heat of moisture vaporization absorption in mud retort process, thus reduce the energy consumption of total system; By gas retort, destructive distillation process is carried out to mud, carbonization gas, tar and semicoke product can be obtained, these destructive distillation products not only can as fuel, and can sell as industrial raw material, have than the better economic worth of generating, compared to sludge incinerator, this system is environmentally friendly, considerably reduce fume emission and dust discharge, stop the pollution of dioxin to environment, and the danger wastes such as a large amount of flying dusts can not be produced.
According to one embodiment of present invention, have heating unit in described gas retort, described heating unit comprises heating tube.
Alternatively, described gas-holder is connected to be passed in described heating unit by described carbonization gas with described heating unit.
Further, purified by flue gas purifying equipment after mud heat exchange to be dried in the described heating unit flue gas of discharging and described dryer.
According to one embodiment of present invention, by described mud raw material even stone in described gas retort, described layer thickness is 50 ~ 400mm.
Alternatively, the pyrolysis temperature in described gas retort is 400 ~ 700 DEG C.
Alternatively, described mud raw material stops 0.5 ~ 2h under described pyrolysis temperature.
According to one embodiment of present invention, described gas retort has discharging mechanism, and described solid product is discharged by described discharging mechanism.
Alternatively, described gas retort is rotary hearth furnace.
Alternatively, described mud carries out destructive distillation under anaerobic state.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic flow sheet of the method for sludge treatment according to the embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
First the method for sludge treatment of embodiment is according to a first aspect of the present invention specifically described below with reference to Fig. 1.
Method for sludge treatment according to the embodiment of the present invention comprises the following steps:
S1, provide mud through processed, and described mud is carried out drying and processing, obtain drying mud;
S2, described oven dry mud is carried out destructive distillation, generate oil gas product and solid product;
S3, described oil gas product is carried out condensation process, obtain carbonization gas, tar and sewage, described solid product is carried out sorting, obtain semicoke and residue;
S4, will the carbonization gas produced in described step S3 purify after be stored in gas-holder; And
S5, the tar produced, sewage and semicoke carried out subsequent disposal and recycle in described step S3.
Specifically, first the mud of the water content about 80% crossed through processed is carried out drying and processing, obtain as the raw material of mud destructive distillation process (mud of water content about 30%), namely to dry mud; Then oven dry mud is heated gradually in enclosed space and carry out destructive distillation, generate oil gas product and solid product; Then oil gas product is carried out condensation, isolate carbonization gas, tar and sewage, wherein, carbonization gas is stored in gas-holder after caning be passed through purification (such as decoking, desulphurization and denitration etc.), can for productive life, tar can be used as raw material and sells or precision work further, and sewage is qualified discharge after sewage disposal; Cooled destructive distillation residual solid mainly comprises semicoke and residue etc., can divide the semicoke chosen wherein, be recycled.
According to the method for sludge treatment of the embodiment of the present invention, before destructive distillation, first drying and processing is carried out to mud, reduce sludge moisture content, product calorific value can be improved, reduce the heat that mud absorbs in carbonization process; In addition, the destructive distillation product carbonization gas that mud destructive distillation produces, tar and semicoke, not only can as fuel, and can sell as industrial raw material, have than the better economic worth of generating, compared to the method for sludge incineration, environmentally friendly, considerably reduce fume emission and dust discharge, stop the pollution of dioxin to environment, and the danger wastes such as a large amount of flying dusts can not be produced.
Wherein, mud is carried out the equipment of drying and method is not particularly limited, the furnace drying method that those of ordinary skill in the art commonly use can be adopted.According to one embodiment of present invention, in step S1, described mud is dried and realized by dryer.Thus, this operation of equipment is simple and drying efficiency is high.
According to one embodiment of present invention, described step S2 comprises: S21, described oven dry mud is carried out processed compressed, obtains block or cylindric mud raw material; With S22, described mud raw material is carried out destructive distillation, generate oil gas product and solid product.Thus, before oven dry mud is carried out destructive distillation, first compressed moulding process is carried out to it, the mud raw material not only convenient transportation after compressed moulding, and be convenient to stone.Such as can by conveyor by mud feedstock transportation to feed bin, the more quantitative paving stock mechanism feed to gas retort.
In order to improve the dry distillation efficiency of mud raw material, according to the method for sludge treatment of the embodiment of the present invention, the method of isolated flue gas destructive distillation mud is adopted to carry out destructive distillation to mud raw material, particularly, according to one embodiment of present invention, step S22 is realized by gas retort, has heating unit in described gas retort, and described heating unit comprises heating tube.Thus, heating unit is to provide the heating installation of destructive distillation institute heat requirement, heating unit can be provided with combustion air and fuel channel, combustion air and fuel can pass into heating unit and respectively in heating tube combustion, atmosphere in high-temperature flue gas and gas retort that heating tube produces is isolated, normally carrying out of destructive distillation can be ensured, improve the calorific value of carbonization gas; Isolated flue gas heating technology high for energy utilization efficiency is applied to the extensive process of mud, mud raw material can be made to enter gas retort continuously and carry out destructive distillation, product is discharged continuously, improves dry distillation efficiency.
Further, according to one embodiment of present invention, described gas-holder is connected to be passed in described heating unit by described carbonization gas with described heating unit.In one of them example of the present invention, the carbonization gas in gas-holder is connected with heating unit with pipeline by press device, and carbonization gas can be used as combustion gas for heating unit provides source of the gas.Be understandable that, carbonization gas can all as the fuel of heating unit to carry out destructive distillation to the mud in gas retort, or part carbonization gas is as the fuel of heating unit, and all the other carbonization gas can be used as carbonization gas product and use for other productive lifes.Thus, by carbonization gas being can be used as the fuel of heating unit, effective saving energy and technique environmental protection, and the carbonization gas produced with mud destructive distillation is as fuel gas, not only achieve stable burning, and efficiency of combustion can reach more than 85%, ensure that the self-sufficiency of mud destructive distillation institute energy requirement, thus reduce running cost.
In one embodiment of the invention, heating unit also can pass into afterburning combustion gas, and afterburning combustion gas is used for black furnace and starts.In one of them example of the present invention, heating unit can be provided with afterburning blast tube to pass into afterburning combustion gas.
In order to make full use of the heat of the flue gas produced in heating unit, according to one embodiment of present invention, described heating unit is connected with described dryer and passes in described dryer with the flue gas of being discharged by described heating unit.In other words, the flue gas that fuel combustion in heating unit produces has higher temperature, this high-temperature flue gas is passed in dryer, mud to be dried in itself and dryer can be made to carry out heat exchange, thus dry mud to be dried, take full advantage of the heat of flue gas, solve traditional problem that external-heat type of heating energy expenditure is large, running cost is high.
According to one embodiment of present invention, pass into flue gas purifying equipment after mud heat exchange to be dried in the described heating unit flue gas of discharging and described dryer to purify.In one of them example of the present invention, dryer be connected with flue gas purification system with by with material-heat-exchanging to be dried in dryer after flue gas pass into flue gas purification system, purify.Thus, by arranging flue gas purification system, effectively prevent the defective and situation to environment of flue gas.
Particularly, according to one embodiment of present invention, by described mud raw material even stone in described gas retort, described layer thickness is 50 ~ 400mm.Alternatively, in one of them example of the present invention, the pyrolysis temperature in described gas retort is 400 ~ 700 DEG C.Further, described mud raw material stops 0.5 ~ 2h under described pyrolysis temperature.Thus, the destructive distillation effect of mud can farthest be ensured.
About gas retort, it will be appreciated that, gas retort needs to ensure that mud can carry out destructive distillation under enclosed space, tubular heating device can be held heat it, and normally can discharge oil gas product and the solid product of destructive distillation generation, alternatively, according to one embodiment of present invention, described gas retort is rotary hearth furnace.Thus, the oil gas product of generation can be collected by the pipeline of gas retort top or sidewall.
In order to ensure that the solid product that destructive distillation produces can normally be discharged, according to one embodiment of present invention, described gas retort has discharging mechanism, and described solid product is discharged by described discharging mechanism, and solid product can rotate stop at the bottom of the rotating bed bed of gas retort discharges gas retort after one week.
According to one embodiment of present invention, in described step S2, described mud carries out destructive distillation under anaerobic state.Treat that the material of destructive distillation is in isolation in the flue gas produced in heat-processed due to heating unit and gas retort, add the Seal Design of gas retort, thus ensure that mud carries out destructive distillation under anaerobic, thus improve the calorific value of carbonization gas to greatest extent.Be understandable that, so-called " calorific value ", refers to perfect combustion 1kg(or 1m 3, gas) the energy that goes out of substance release.
Specifically describe the sludge treating system of embodiment according to a second aspect of the present invention below.
Sludge treating system according to the embodiment of the present invention comprises: dehydration equipment, dryer, extrusion forming device, feed bin, gas retort, condensing works, tar separation equipment, gas-holder and finishing apparatus.
Specifically, dehydration equipment is used for described sludge dewatering, and dryer is used for the mud after by dehydration and carries out drying and processing to obtain drying mud.Oven dry mud is carried out processed compressed after receiving described oven dry mud by extrusion forming device, and obtain block or cylindric mud raw material, feed bin is connected with extrusion forming device by conveyor.The downstream that gas retort is connected to feed bin is to receive after the raw material that feeds from feed bin by raw material destructive distillation to generate oil gas product and solid product, and wherein solid product comprises semicoke and residue.Oil gas product is lowered the temperature by the downstream that condensing works is connected to gas retort after receiving oil gas product, tar separation equipment be connected with condensing works with after the oil gas product after receiving the cooling that feeds from condensing works by the oil gas product separation after lowering the temperature to obtain carbonization gas, tar and sewage.Gas-holder is for storing the carbonization gas after purification, and finishing apparatus carries out subsequent disposal to sewage, tar and semicoke and recycles.
It will be appreciated that, the term " downstream " that the application mentions in describing refers to the direction along the work flow according to raw material to be processed, and that is, gas retort is connected to the downstream of feed bin, what refer to is exactly in work flow, and feed bin is before gas retort and be connected with gas retort; Condensing works is connected to the downstream of gas retort, and what refer to is exactly in work flow, and gas retort is before condensing works and be connected with condensing works.
In other words, first the mud of the water content about 80% through dehydration equipment process is carried out drying and processing on dryer, obtain water content be about 30% can be delivered to the oven dry mud that gas retort carries out destructive distillation process.Then pending oven dry mud is sent into extrusion forming device such as extrude with forming machine in be compressed into block or cylindric, then feed bin can be transported to via conveyor, quantitatively to the paving stock mechanism feed of gas retort such as gas retort, the destructive distillation in gas retort of raw material after extrusion molding, the oil gas product produced such as can be collected by the pipeline of gas retort top or sidewall, then send in condensing works and lower the temperature, oil gas product after cooling passes in tar separation equipment to be separated and obtains carbonization gas, tar and sewage, solid product comprises semicoke and residue, can be stored in gas-holder after carbonization gas purification, finishing apparatus can respectively to sewage, tar and semicoke carry out subsequent disposal and recycle.
Thus, according to the sludge treating system of the embodiment of the present invention, significantly can be reduced the water content in mud by dehydration equipment and dryer, reduce the heat of moisture vaporization absorption in mud retort process, thus reduce the energy consumption of total system; By gas retort, destructive distillation process is carried out to mud, carbonization gas, tar and semicoke product can be obtained, these destructive distillation products not only can as fuel, and can sell as industrial raw material, have than the better economic worth of generating, compared to sludge incinerator, this system is environmentally friendly, considerably reduce fume emission and dust discharge, stop the pollution of dioxin to environment, and the danger wastes such as a large amount of flying dusts can not be produced.
Particularly, according to one embodiment of present invention, have heating unit in gas retort, heating unit comprises heating tube.Thus, heating unit is to provide the heating installation of destructive distillation institute heat requirement, heating unit can be provided with combustion air and fuel channel, combustion air and fuel can pass into heating unit and respectively in heating tube combustion, atmosphere in high-temperature flue gas and gas retort that heating tube produces is isolated, normally carrying out of destructive distillation can be ensured, improve the calorific value of carbonization gas; Isolated flue gas heating technology high for energy utilization efficiency is applied to the extensive process of mud, mud raw material can be made to enter gas retort continuously and carry out destructive distillation, product is discharged continuously, improves dry distillation efficiency.
Further, according to one embodiment of present invention, described gas-holder is connected to be passed in described heating unit by described carbonization gas with described heating unit.In one of them example of the present invention, the carbonization gas in gas-holder is connected with heating unit with pipeline by press device, and carbonization gas can be used as combustion gas for heating unit provides source of the gas.Be understandable that, carbonization gas can all as the fuel of heating unit to carry out destructive distillation to the mud in gas retort, or part carbonization gas is as the fuel of heating unit, and all the other carbonization gas can be used as carbonization gas product and use for other productive lifes.Thus, by using the fuel of carbonization gas as heating unit, effective saving energy and technique environmental protection, and the carbonization gas produced with mud destructive distillation is as fuel gas, not only achieve stable burning, and efficiency of combustion can reach more than 85%, ensure that the self-sufficiency of mud destructive distillation institute energy requirement, thus reduce running cost.
According to one embodiment of present invention, pass into flue gas purifying equipment after mud heat exchange to be dried in the described heating unit flue gas of discharging and described dryer to purify.In one of them example of the present invention, dryer be connected with flue gas purification system with by with material-heat-exchanging to be dried in dryer after flue gas pass into flue gas purification system, purify.Thus, by arranging flue gas purification system, effectively prevent the defective and situation to environment of flue gas.
Particularly, according to one embodiment of present invention, by described mud raw material even stone in described gas retort, described layer thickness is 50 ~ 400mm.Alternatively, in one of them example of the present invention, the pyrolysis temperature in described gas retort is 400 ~ 700 DEG C.Further, described mud raw material stops 0.5 ~ 2h under described pyrolysis temperature.Thus, the destructive distillation effect of mud can farthest be ensured.
About gas retort, it will be appreciated that, gas retort needs to ensure that mud can carry out destructive distillation under enclosed space, tubular heating device can be held heat it, and normally can discharge oil gas product and the solid product of destructive distillation generation, alternatively, according to one embodiment of present invention, described gas retort is rotary hearth furnace.Thus, the oil gas product of generation can be collected by the pipeline of gas retort top or sidewall.
In order to ensure that the solid product that destructive distillation produces can normally be discharged, according to one embodiment of present invention, described gas retort has discharging mechanism, and described solid product is discharged by described discharging mechanism, and solid product can rotate stop at the bottom of the rotating bed bed of gas retort discharges gas retort after one week.
According to one embodiment of present invention, described mud carries out destructive distillation under anaerobic state.Treat that the material of destructive distillation is in isolation in the flue gas produced in heat-processed due to heating unit and gas retort, add the Seal Design of gas retort, thus ensure that mud carries out destructive distillation under anaerobic, thus improve the calorific value of carbonization gas to greatest extent.Be understandable that, so-called " calorific value ", refers to perfect combustion 1kg(or 1m 3, gas) the energy that goes out of substance release.
Generally speaking, according to method for sludge treatment and the treatment facility thereof of the embodiment of the present invention, the destructive distillation product carbonization gas that mud destructive distillation produces, tar and semicoke, not only as fuel, and can sell as industrial raw material, have than the better economic worth of generating, compared to the method for sludge incineration, environmentally friendly, considerably reduce fume emission and dust discharge, stop the pollution of dioxin to environment, and the danger wastes such as a large amount of flying dusts can not be produced.
In the description of this specification sheets, specific features, structure, raw material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, raw material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.

Claims (19)

1. a method for sludge treatment, is characterized in that, comprises the following steps:
S1, provide mud through processed, and described mud is carried out drying and processing, obtain drying mud;
S2, described oven dry mud is carried out destructive distillation, generate oil gas product and solid product; Described step S2 comprises:
S21, described oven dry mud is carried out processed compressed, obtain block or cylindric mud raw material;
S22, described mud raw material is carried out destructive distillation, generate oil gas product and solid product, described step S22 is realized by gas retort, in described gas retort, there is heating unit, described heating unit comprises heating tube, gas-holder is connected to pass in described heating unit by described carbonization gas with described heating unit, described heating unit is connected with described dryer and passes in described dryer with the flue gas of being discharged by described heating unit;
S3, described oil gas product is carried out condensation process, obtain carbonization gas, tar and sewage, described solid product is carried out sorting, obtain semicoke and residue;
S4, will the carbonization gas produced in described step S3 purify after be stored in gas-holder; And
S5, the tar produced, sewage and semicoke carried out subsequent disposal and recycle in described step S3.
2. method for sludge treatment according to claim 1, is characterized in that, dries realized by dryer in step S1 to described mud.
3. method for sludge treatment according to claim 1, is characterized in that, passes into flue gas purifying equipment and purify after mud heat exchange to be dried in the flue gas that described heating unit is discharged and described dryer.
4. method for sludge treatment according to claim 1, is characterized in that, by described mud raw material even stone in described gas retort, described layer thickness is 50 ~ 400mm.
5. method for sludge treatment according to claim 1, is characterized in that, the pyrolysis temperature in described gas retort is 400 ~ 700 DEG C.
6. method for sludge treatment according to claim 5, is characterized in that, described mud raw material stops 0.5 ~ 2h under described pyrolysis temperature.
7. the method for sludge treatment according to any one of claim 1-6, is characterized in that, described gas retort has discharging mechanism, and described solid product is discharged by described discharging mechanism.
8. method for sludge treatment according to claim 7, is characterized in that, described gas retort is rotary hearth furnace.
9. the method for sludge treatment according to any one of claim 1-6, is characterized in that, in described step S2, described mud carries out destructive distillation under anaerobic state.
10. a sludge treating system, is characterized in that, comprising:
Dehydration equipment, described dehydration equipment is used for described sludge dewatering;
Dryer, described dryer is used for the mud after by dehydration and carries out drying and processing to obtain drying mud;
Extrusion forming device, carries out processed compressed by described oven dry mud after described extrusion forming device receives described oven dry mud, obtains block or cylindric mud raw material;
Feed bin, described feed bin is connected with described extrusion forming device by conveyor;
Gas retort, the downstream that described gas retort is connected to described feed bin is to receive after the raw material that feeds from described feed bin by described raw material destructive distillation to generate oil gas product and solid product, and wherein said solid product comprises semicoke and residue;
Condensing works, described oil gas product is lowered the temperature by the downstream that described condensing works is connected to described gas retort after receiving described oil gas product;
Tar separation equipment, described tar separation equipment is connected with the oil gas product received after the cooling that feeds from described condensing works with described condensing works, by the oil gas product separation after described cooling to obtain carbonization gas, tar and sewage;
Gas-holder, described gas-holder is for storing the carbonization gas after purification; With
Finishing apparatus, described finishing apparatus carries out subsequent disposal to sewage, tar and semicoke and recycles.
11. sludge treating systems according to claim 10, is characterized in that, have heating unit in described gas retort, and described heating unit comprises heating tube.
12. sludge treating systems according to claim 11, is characterized in that, described gas-holder is connected to be passed in described heating unit by described carbonization gas with described heating unit.
13. sludge treating systems according to claim 12, is characterized in that, are purified after mud heat exchange to be dried in the flue gas that described heating unit is discharged and described dryer by flue gas purifying equipment.
14. sludge treating systems according to claim 10, is characterized in that, by described mud raw material even stone in described gas retort, described layer thickness is 50 ~ 400mm.
15. sludge treating systems according to claim 10, is characterized in that, the pyrolysis temperature in described gas retort is 400 ~ 700 DEG C.
16. sludge treating systems according to claim 15, is characterized in that, described mud raw material stops 0.5 ~ 2h under described pyrolysis temperature.
17. sludge treating systems according to any one of claim 10-16, it is characterized in that, described gas retort has discharging mechanism, and described solid product is discharged by described discharging mechanism.
18. sludge treating systems according to claim 17, is characterized in that, described gas retort is rotary hearth furnace.
19. sludge treating systems according to claim 18, is characterized in that, described mud carries out destructive distillation under anaerobic state.
CN201410006626.3A 2014-01-07 2014-01-07 Method for sludge treatment and treatment system thereof Expired - Fee Related CN103693839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410006626.3A CN103693839B (en) 2014-01-07 2014-01-07 Method for sludge treatment and treatment system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410006626.3A CN103693839B (en) 2014-01-07 2014-01-07 Method for sludge treatment and treatment system thereof

Publications (2)

Publication Number Publication Date
CN103693839A CN103693839A (en) 2014-04-02
CN103693839B true CN103693839B (en) 2016-03-30

Family

ID=50355536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410006626.3A Expired - Fee Related CN103693839B (en) 2014-01-07 2014-01-07 Method for sludge treatment and treatment system thereof

Country Status (1)

Country Link
CN (1) CN103693839B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104211271B (en) * 2014-07-30 2016-05-18 浙江德谦节能科技有限公司 A kind of two-period form mud gasification processing method and treating apparatus
CN104312600A (en) * 2014-10-14 2015-01-28 北京北宇机械设备有限公司 Sludge pyrolysis and gasification treatment process and sludge pyrolysis and gasification treatment system
CN104671628B (en) * 2015-02-09 2017-09-19 广东金泥华牛科技有限公司 A kind of method of utilization solar energy pyrolysis carbonization technical finesse sludge
CN105174678B (en) * 2015-08-31 2017-09-22 安徽卓新洁净能源科技有限公司 Domestic sludge pyrolysis processing technique
CN105333441B (en) * 2015-10-21 2018-03-23 神雾科技集团股份有限公司 A kind of waste disposal method and rubbish gas retort
CN105255534B (en) * 2015-10-23 2018-06-08 石家庄新华能源环保科技股份有限公司 A kind of device of the anhydrous processing of tar
CN105541078A (en) * 2016-01-28 2016-05-04 北京神雾环境能源科技集团股份有限公司 Ferruginous oil sludge recycling system and method thereof
CN106399620A (en) * 2016-11-29 2017-02-15 北京神雾环境能源科技集团股份有限公司 System and method for treating iron-contained oil sludge
CN106556016A (en) * 2016-11-30 2017-04-05 中冶华天南京工程技术有限公司 Sludge carbonization plus incinerating method and system
CN109592865A (en) * 2018-11-02 2019-04-09 湖北亚首生物质新能源科技有限公司 The method for reducing oily sludge thermal decomposition product oil content
CN109293190B (en) * 2018-11-02 2020-07-24 南华大学 Treatment method of oily sludge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010978A1 (en) * 1999-08-04 2001-02-15 Nkk Corporation Method for treating combustible waste
CN101113067A (en) * 2006-07-28 2008-01-30 中国石油天然气股份有限公司 Resource treating method for oil-containing sludge
CN101318759A (en) * 2008-07-11 2008-12-10 谢忠诚 Resource regeneration processing method and equipment for urban sewage sludge
CN103008331A (en) * 2012-12-18 2013-04-03 北京华福环境工程科技有限公司 Resource treatment method for household garbage and biochemical sludge
CN103466912A (en) * 2013-09-29 2013-12-25 江苏兆盛环保集团有限公司 Process and device for sludge pyrolysis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010978A1 (en) * 1999-08-04 2001-02-15 Nkk Corporation Method for treating combustible waste
CN101113067A (en) * 2006-07-28 2008-01-30 中国石油天然气股份有限公司 Resource treating method for oil-containing sludge
CN101318759A (en) * 2008-07-11 2008-12-10 谢忠诚 Resource regeneration processing method and equipment for urban sewage sludge
CN103008331A (en) * 2012-12-18 2013-04-03 北京华福环境工程科技有限公司 Resource treatment method for household garbage and biochemical sludge
CN103466912A (en) * 2013-09-29 2013-12-25 江苏兆盛环保集团有限公司 Process and device for sludge pyrolysis

Also Published As

Publication number Publication date
CN103693839A (en) 2014-04-02

Similar Documents

Publication Publication Date Title
Benhelal et al. Global strategies and potentials to curb CO2 emissions in cement industry
Sharma et al. Disposal of waste tyres for energy recovery and safe environment
CN105366896B (en) A kind of equipment and technique of sludge gasification melting circular treatment
CA1313591C (en) Method for obtaining utilizable gas from garbage
CA2576071C (en) Thermolysis of organic waste in a ball furnace
CN203791331U (en) System for synergistic treatment of municipal domestic waste in cement kiln
JP5685603B2 (en) Combined household waste and sewage treatment process
CN103722002B (en) Based on the consumer waste comprehensively processing method of anaerobic digestion and hydrothermal carbonization
JP2008519687A (en) Slurry dehydration and conversion of biosolids into renewable fuels
CN105038822B (en) The cleaning method and device of a kind of sludge
CN102875003B (en) Integrated technology of thermal decomposing, dry distilling and gasifying sludge and preparing of ceramsite
CN101993181B (en) Method for dehydration and recycling of continuous dyeing sludge
CN102513346B (en) Thermal desorption method and device for organic polluted soil on basis of cement process
KR100557676B1 (en) Method for carbonizing organic waste and the apparatus therefor
US20200002630A1 (en) Pyrolysis processing of solid waste from a water treatment plant
CN103172245B (en) Method for quick pyrolysis treatment and in situ conversion product utilization of sludge
CN201277557Y (en) Thermal decomposition apparatus for organic waste
CN101896577A (en) Produce the equipment of pyrolysis product
CN203991628U (en) A kind for the treatment of apparatus that efficiently utilizes MSW heating value
CN103449701A (en) Method and device for refinery sludge carbonization treatment and carbon recovery
CN102190413B (en) Method of integratedly utilizing sludge pretreatment and cement kiln, and system thereof
CN104501171B (en) Garbage derivatived fuel (RDF) pyrolysis gasification system
CN105314812A (en) Sludge treatment system and treatment method thereof
CN102322642A (en) Sludge drying and incinerating system on basis of incineration of waste grate furnace and treatment method thereof
CN101318759A (en) Resource regeneration processing method and equipment for urban sewage sludge

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20161031

Address after: 102200 Beijing city Changping District Machi Town cow Road

Patentee after: Beijing Shenyuan environmental protection Co. Ltd.

Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18

Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd.

Effective date of registration: 20161031

Address after: 102200 Beijing city Changping District Machi Town cow Road

Patentee after: Beijing Shenyuan environmental protection Co. Ltd.

Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18

Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160330

Termination date: 20190107