CN108911473A - Direct heating type sludge drying charing mechanism - Google Patents
Direct heating type sludge drying charing mechanism Download PDFInfo
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- CN108911473A CN108911473A CN201811003891.0A CN201811003891A CN108911473A CN 108911473 A CN108911473 A CN 108911473A CN 201811003891 A CN201811003891 A CN 201811003891A CN 108911473 A CN108911473 A CN 108911473A
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- combustion chamber
- heating type
- direct heating
- type sludge
- drying
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- 239000010802 sludge Substances 0.000 title claims abstract description 87
- 238000001035 drying Methods 0.000 title claims abstract description 86
- 238000010438 heat treatment Methods 0.000 title claims abstract description 85
- 230000007246 mechanism Effects 0.000 title claims abstract description 46
- 238000002485 combustion reaction Methods 0.000 claims abstract description 75
- 239000008187 granular material Substances 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 74
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 23
- 239000000428 dust Substances 0.000 description 23
- 229910052760 oxygen Inorganic materials 0.000 description 23
- 239000001301 oxygen Substances 0.000 description 23
- 229910052799 carbon Inorganic materials 0.000 description 19
- 239000000463 material Substances 0.000 description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 18
- 239000002245 particle Substances 0.000 description 18
- 239000003610 charcoal Substances 0.000 description 16
- 238000001816 cooling Methods 0.000 description 12
- 239000003546 flue gas Substances 0.000 description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 238000004581 coalescence Methods 0.000 description 6
- 238000003763 carbonization Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of direct heating type sludge to dry charing mechanism.Direct heating type sludge drying charing mechanism includes revolving cylinder drying carbonizer, combustion chamber, the first inlet duct, heating device, tubulent contact tower, cleaner and heat pump；Revolving cylinder drying carbonizer is for drying sludge；Combustion chamber is connected to the revolving drum of revolving cylinder drying carbonizer and is connected to the discharge port of revolving drum, and combustion chamber is for burning to the mud granule after the drying of discharge port；First inlet duct, heating device and combustion chamber are successively linked in sequence, and the first inlet duct is in air inlet to combustion chamber, heating device to be for heating the gas from the first inlet duct；Tubulent contact tower and cleaner are connected in series between revolving cylinder drying carbonizer and combustion chamber, and tubulent contact tower is connected to the gas outlet of revolving drum.Direct heating type sludge drying charing mechanism can effectively reduce the discharge of harmful substance.
Description
Technical field
The present invention relates to Solid Waste Treatment technologies, dry charing mechanism more particularly to a kind of direct heating type sludge.
Background technique
Sludge is the product of sewage treatment, and moisture content is high, is easy to rot smelly, causes secondary pollution.By drying, carbonizing
Sludge can be made to reach minimizing, stabilisation, innoxious, recycling.
Existing sludge drying, charring process are all that sludge high temperature is first cracked (500~600 DEG C), and then burn cracking gas
Institute's calorific requirement is cracked to provide, the risk of generation bioxin in this way is larger, larger to air environmental pollution risk.
Summary of the invention
Based on this, it is necessary to provide a kind of direct heating type sludge baking that can effectively reduce discharge harmful substances from flue gases
Dry charing mechanism.
A kind of direct heating type sludge drying charing mechanism, including revolving cylinder dry carbonizer, combustion chamber, the first air inlet
Device, heating device, tubulent contact tower, cleaner and heat pump；
The revolving drum dynamic sealing of the combustion chamber and the revolving cylinder drying carbonizer connect and with the revolving drum
Discharge port connection, the combustion chamber are used to burn to the mud granule after the drying charing from the discharge port；It is described
First inlet duct, the heating device and the combustion chamber are successively linked in sequence, and first inlet duct is for conveying
In gas to the combustion chamber, the heating device is used to be delivered to first inlet duct indoor gas of burning
It is heated；
The tubulent contact tower and the cleaner are connected in series in the revolving cylinder drying carbonizer and the burning
Between room, the tubulent contact tower is connected to the gas outlet of the revolving drum, and the heat pump is connected on first inlet duct and institute
It states between heating device, the heat pump is also attached to the cleaner.
The direct heating type sludge drying charing mechanism further includes feeding device in one of the embodiments, described
Feeding device is rotationally connected with the revolving drum and is connected to the feed inlet of the revolving drum.
The feeding device is feeding spiral conveyer in one of the embodiments,.
The direct heating type sludge drying charing mechanism further includes discharging device in one of the embodiments, described
Discharging device is connected to the combustion chamber and is connected to the discharge port.
The discharging device is the cooling mucking machine of high temperature resistant spiral in one of the embodiments,.
The direct heating type sludge drying charing mechanism further includes the second inlet duct in one of the embodiments,
Second inlet duct is connected to the discharging device, second inlet duct be used to ventilate into the discharging device with
Oxygen needed for providing the burning of sludge carbon granule simultaneously cools down discharging.
The cleaner is sack cleaner in one of the embodiments,.
The direct heating type sludge drying charing mechanism further includes blower unit in one of the embodiments, described
Blower unit is connected to the heat pump, and the blower unit is also used to connect exhaust gas processing device.
The inner wall of the revolving drum is connected with multiple shovelling plates in one of the embodiments,.The inner wall of shovelling plate and revolving drum
Between connection relationship can be welding.
Above-mentioned direct heating type sludge drying charing mechanism is able to achieve the drying charing of sludge, reduces the nuisances such as bioxin
The discharge of matter, and also it is able to achieve recycling for the energy.Specifically, mud granule enters revolving cylinder drying carbonizer
In revolving drum, the shovelling plate rotated in revolving drum drives mud granule rotation to realize to raise and spread, loosen, advance, and with it is reverse
Hot gas come into full contact with realizing drying, charing, mud granule after charing is entered by the discharge port of revolving drum
Into combustion chamber, device for simultaneous heating adds to the indoor gas of burning is entered in the first inlet duct air inlet to combustion chamber
Heat, combustion chamber burn to sludge carbon granule, and drying, the charing of sludge are completed in the sludge carbon granule discharge after burning.In combustion chamber
Interior dust, powdered carbon and air can eliminate the harmful substances such as bioxin by being sufficiently mixed burning, dry and carbonize into revolving cylinder
Oxygen after-flame in high-temperature gas in machine makes to burn again in revolving cylinder drying carbonizer, and enters revolution
The temperature of the high-temperature flue gas of roller drying carbonizer is lower than 250 DEG C, which can avoid the generation of bioxin and reduce cracking gas
With the generation of foul smell, the charcoal calorific value with higher into combustion chamber can be made, more heats can be generated after burning.Due to entering
The heating of heating device is first passed through to the indoor gas that burns, therefore the indoor sludge carbon granule that burns can burn rapidly, into one
Step ground, the high-temperature gas that combustion chamber generates further pass through the direction of travel of the mud granule in revolving drum and revolving drum on the contrary,
High-temperature gas can heat the mud granule in revolving drum to realize its drying, charing, and the sludge carbon granule of high temperature enters combustion
It can burn rapider after burning room, further improve efficiency of combustion.Due to from revolving cylinder dry carbonizer discharge port into
Enter to take away when gas into revolving drum is discharged from revolving cylinder drying carbonizer gas outlet part partial size in revolving drum compared with
Small mud granule and harmful substance particle, the partial sludge particle and harmful substance particle carry out under the action of tubulent contact tower
Mutual coalescence forms the biggish dust of partial size, and the gas for being mixed with dust is separated by cleaner, and dust is re-introduced into combustion
Indoor Combustion is burnt, so that the calorific value of dust or high degree, which had both been utilized, reduces the content of harmful substance in discharge gas, it is right
Environmental protection plays an important role.
Above-mentioned direct heating type sludge drying charing mechanism also passes through setting heat pump, heat pump be connected on the first inlet duct with
Between heating device, heat pump is also attached to cleaner, and the high-temperature gas that cleaner is isolated can be utilized by heat pump and is used for
To the air inlet progress indirect heating of the first inlet duct, the air inlet of the first inlet duct after heating and from sack cleaner
Dust enters in combustion chamber together for oxygen needed for providing the burning of sludge carbon granule, and the indoor burning of burning is made full use of to generate
High temperature, it is energy saving at this point, heating device can be turned down or even be closed.
Above-mentioned direct heating type sludge drying charing mechanism also draws the gas of heat pump discharge by setting blower unit
And the gas is passed through in exhaust gas processing device, avoid the direct emission of pernicious gas.
Detailed description of the invention
Fig. 1 is the drying charing mechanism side schematic view of direct heating type sludge described in an embodiment；
Fig. 2 is the radial cross section of the revolving drum of direct heating type sludge shown in FIG. 1 drying charing mechanism.
Description of symbols
10：Direct heating type sludge drying charing mechanism；100：Revolving cylinder dries carbonizer；110：Revolving drum；120：
It is driven gear ring；130：Shovelling plate；140：Carrying roller；200：Combustion chamber；300：First inlet duct；310：First admission line；320：
First control oxygen valve；400：Heating device；510：Tubulent contact tower；520：Cleaner；530：Reflux line；540：Rotary valve；600：
Feeding device；700：Discharging device；800：Second inlet duct；810：Second admission line；820：Second control oxygen valve；900：Heat
Pump；1000：Blower unit；1100：Material feeding box.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
Shown in Figure 1, one embodiment of the invention provides a kind of direct heating type sludge drying charing mechanism 10, this is straight
Meeting hot type sludge drying charing mechanism 10 includes that revolving cylinder dries carbonizer 100, combustion chamber 200, the first inlet duct
300, heating device 400, tubulent contact tower 510, cleaner 500 and heat pump 900.
It includes revolving drum 110 and rotation driving part that revolving cylinder, which dries carbonizer 100,.Match the bottom of revolving drum 110
Conjunction has multiple carrying rollers 140, and the outer wall of revolving drum 110 and the outer wall of carrying roller are engaged, and revolving drum 110 can be relative to carrying roller
140 rotations, the quantity of carrying roller 140 is preferably four.Revolving drum 110 is rotatably connected on carrying roller 140, and revolving drum 110 is along dirt
Mud direction of advance has 5% downward gradient.Further, the outside of revolving drum 110 is equipped with insulating layer, and the setting of insulating layer can
To slow down the lost speed of the temperature in revolving drum 110, the purpose kept the temperature to revolving drum 110 is played.Rotation driving part is used
It is rotated in driving revolving drum 110.Rotation driving part can be driving motor.
One end face of revolving drum 110 has feed inlet and gas outlet, and the other end of revolving drum 110 has discharge port,
Revolving drum 110 is obliquely installed, and feed inlet is higher than discharge port, so set, convenient for the mud granule in revolving drum 110 from recast
With in bottom discharge to combustion chamber 200.
Preferably, the outer wall of revolving drum 110 is equipped with transmission gear ring 120, the company of being arranged in the drive shaft of rotation driving part
It is connected to driving gear, driving gear is engaged with transmission gear ring 120.
Combustion chamber 200 is connected to revolving drum 110 by dynamic seal ring and is connected to discharge port.The height of fixed combustion chamber 200
Warm exhanst gas outlet is connected and is connected to by dynamic seal ring with the discharge port of the revolving drum 110 of rotation.The high temperature cigarette that combustion chamber 200 generates
Gas is used to carry out the sludge in revolving drum 110 adverse current charing, drying, since the high-temperature flue gas that combustion chamber 200 generates is lower than 250
DEG C, oxygen therein after-flame, so not burning in revolving drum.Mud granule after drying charing from discharge port
It burns in combustion chamber 200.
First inlet duct 300, heating device 400 and combustion chamber 200 are successively linked in sequence, the first inlet duct 300
For in air inlet to combustion chamber 200, heating device 400 to be used for the gas delivered into combustion chamber 200 to the first inlet duct 300
Body is heated, combustion chamber 200 using the first inlet duct 300 convey come gas in oxygen.First inlet duct 300 is
Air blower is equipped with the first admission line 310, first admission line 310 between the first inlet duct 300 and heating device 400
It is equipped with the first control oxygen valve 320.
In a specific example, direct heating type sludge drying charing mechanism 10 further includes feeding device 600.Feeding device
600 are rotationally connected with revolving drum 110 and are connected to feed inlet.
Feeding device 600 is feeding spiral conveyer in one of the embodiments,.Feeding spiral conveyer can be
Screw conveyor shaft.The working principle of screw conveyor is that the helical blade of rotation elapses material and to carry out screw conveyor defeated
It send, the power for rotating material together with screw conveyor blade is material own wt and screw conveyor casing to material
Frictional resistance.
Preferably, direct heating type sludge drying charing mechanism 10 further includes material feeding box 1100, and the setting of material feeding box 1100 exists
It is connected at the feed inlet of revolving drum 110 and with feed inlet, revolving drum 110 is rotatably assorted with material feeding box 1100, material feeding box 1100
With the feed inlet dynamic sealing of revolving drum 110.Feeding device 600 is connected to material feeding box 1100.Gas outlet is set on material feeding box 1100.
The flue gas come out out of revolving drum 110, which directly enters in material feeding box from feed inlet, is expelled to tubulent contact tower from the gas outlet of material feeding box again
In 510.
Tubulent contact tower 510 and cleaner 520 are connected in series between material feeding box 140 and combustion chamber 200, tubulent contact tower 510
It is connected to material feeding box 140 and is connected to the gas outlet of material feeding box 140.Rapid ball is entered from what the gas outlet of material feeding box 140 came out
The temperature of gas in tower 510 is about 130 DEG C.
Tubulent contact tower 510 namely rapid ball coalescence tower, it is internal equipped with a large amount of high temperature resistants, wear-resisting, impact-resistant polytetrafluoroethylene (PTFE)
Hollow sphere, tail gas stream is out-of-date to be in suspended state, makes that fierce collision occurs between the dust particle in tail gas, causes to be difficult to bedding bag
Fine particle, the foul smell of formula deduster capture are easy to by cleaner 520 such as by large particle absorption coalescence at large particle
Sack cleaner capture.The setting of sack cleaner realizes fine particle, foul smell in high-temperature flue gas and is adsorbed by large particle
Coalescence at large particle capture.
Preferably, heating device 400 is electric airheater.It can be appreciated that heating device 400 can also be other forms
Heating equipment.Above-mentioned direct heating type sludge drying charing mechanism 10 uses the easily controllable temperature of electric airheater, using,
It is easy for installation, it is an innovative point of the invention.Specifically, charing mechanism 10 is dried in direct heating type sludge to work initial rank
Section, is heated, the air of heating enters in combustion chamber 200 by air of the electric heater unit to the first inlet duct 300.When
After a period of work, electric heater unit can close for direct heating type sludge drying charing mechanism 10, energy saving, fire at this time
The high-temperature flue gas of burning generation in room 200 is burnt after tubulent contact tower 510 and cleaner 520, and high-temperature gas enters following
Heat pump 900 in carry out heat recovery and utilization.
In a specific example, direct heating type sludge drying charing mechanism 10 further includes discharging device 700.Discharging device
700 are connected to combustion chamber 200 for carrying out blanking to the drying mud granule after the drying charing from discharge port.
In a specific example, discharging device 700 is the cooling mucking machine of high temperature resistant spiral.High temperature resistant spiral cools down mucking machine
Bottom have multiple normal temperature air imports.
The lower part of combustion chamber 200 is arranged in the cooling mucking machine of high temperature resistant spiral, has on the cooling mucking machine of high temperature resistant spiral more
A air nozzle, oxygen supply of the nozzle far from its discharge port for charcoal are burnt, which is in boiling state full combustion, high-efficient,
The high-temperature flue-gas of generation may be up to several hundred degrees Celsius, and the cooling of carbon granule is used for close to the nozzle of its discharge port, absorbs charcoal
Heat and the air (oxygen-containing) that heats up mix with several hundred degrees Celsius of high-temperature flue gas and fallen with the discharge port of revolving drum 110
Charcoal contact burns away.Because the calorific value of charcoal is lower and cooling air quantity is larger, temperature when high-temperature flue gas reaches 200 top of combustion chamber
Degree can be far below 250 DEG C, be insufficient for the heat demand of sludge carbonization in revolving drum 110, drying, so needing supplement in this way
Heat：Utilize the powder for sack cleaner 520 being collected by heat pump 900 and 400 warmed-up hot-air (oxygen-containing) of heating device
Dirt is blown into combustion chamber 200 and atomization and full combustion occurs, and just produces more high-temperature flue gas, by adjusting two control oxygen valve controls
The air capacity that system enters can control the high-temperature flue gas outlet temperature of combustion chamber 200 lower than 250 DEG C and guarantee that its flow can expire
Sludge carbonization in sufficient revolving drum 110, drying heat demand improve sludge carbonization, drying heat to take full advantage of waste heat
Efficiency reduces the discharge of pernicious gas.
In a specific example, direct heating type sludge drying charing mechanism 10 further includes the second inlet duct 800.Second
Inlet duct 800 is connected to discharging device 700, and the second inlet duct 800 is for dropping the sludge carbon in discharging device 700
Temperature.
Preferably, the second inlet duct 800 is preferably air blower, and the second inlet duct 800 is for conveying normal temperature air
Into discharging device 700 to carry out cooling processing to the sludge carbon in discharging device 700.
The second admission line 810, second admission line 810 are equipped between second inlet duct 800 and discharging device 700
It is equipped with the second control oxygen valve 830.Because multiple normal temperature air imports are arranged at the bottom of the cooling mucking machine of high temperature resistant spiral, by adjusting the
The air capacity that the two control controls of oxygen valve 830 enter, so that it may so that charcoal (being fuel more clean than sludge) the generation part generated is (outstanding
It is fine grain charcoal) burning, the cooling heat to recycle out charcoal is obtained to carbonize to provide heat and use charcoal, is returned from charcoal out
The air for having received heat enters in combustion chamber 200 to burn for sludge carbon, and therefore, the second inlet duct 800, second controls oxygen valve
830 setting is an innovative point of the invention.
In a specific example, cleaner 520 is sack cleaner.Sack cleaner can to the gas of entrance and
Solid particle separation, particle enter in combustion chamber 200, and gas then enters in following heat pumps 900.Specifically, sack cleaner
520 be a kind of dry type dust filtration device, it be suitable for trap tiny, dry, non-fiber dust, filter bag using weave filter cloth or
Nonwoven felt is at being filtered dusty gas using the filtration of fabric, remove when dusty gas enters pocket type
After dirt device, particle is big, heavy dust since the effect of gravity settles down falls into ash bucket, the gas containing relatively fine dust
For body when passing through filter bag, dust is purified gas by detention.
Further, it is equipped with reflux line 530 between cleaner 520 and combustion chamber 200, is set on the reflux line 530
There is rotary valve 540, rotary valve 540 is for quantitatively conveying dust and preventing gas backflow.
In a specific example, heat pump 900 is connected between the first inlet duct 300 and heating device 400, and heat pump
900 are connected in the first air inlet pipe.Heat pump 900 is also attached to cleaner 520.Above-mentioned direct heating type sludge dries carbonizer
Also by setting heat pump 900, heat pump 900 is connected between the first inlet duct 300 and heating device 400 structure 10, and heat pump 900 is also
It is connected to cleaner 520, the high-temperature gas that cleaner 520 is isolated can be utilized by heat pump 900, the high-temperature gas logical the
The cryogenic gas of one inlet duct 300 enters in combustion chamber 200 together for oxygen needed for providing mud granule burning carbonate,
The high temperature for making full use of the burning in combustion chamber 200 to generate, at this point, the high-temperature gas that cleaner 520 is isolated can be warm
Pump 900 utilize for the air inlet progress indirect heating to the first inlet duct 300, the first inlet duct 300 after heating into
Gas with enter together with the dust of sack cleaner in combustion chamber 200 for provide sludge carbon granule burning needed for oxygen, fill
Divide the high temperature generated using the burning in combustion chamber 200, at this point, heating device 400 can be turned down or even be closed, it is energy saving.From
The temperature for the gas that cleaner 520 comes out is 130 DEG C.From the temperature of the gas entered in heat pump 900 in blower unit 1000
Degree is 60 DEG C.Since above-mentioned direct heating type sludge is dried, oxygen content is extremely low in the tail gas that charing mechanism 10 obtains and contains largely
Water vapour, it is impossible to be used in combustion-supporting, temperature is again higher, so recycling its thermal energy using heat pump 900 come indirect heating from first
The air of inlet duct 300 is with for the combustion-supporting of the sludge carbon granule in combustion chamber 200, therefore, the setting of heat pump 900 is the present invention
Another innovative point.
In a specific example, direct heating type sludge drying charing mechanism 10 further includes blower unit 1000, air inducing dress
It sets 1000 and is connected to heat pump 900, blower unit 1000 is also attached to exhaust gas processing device.Above-mentioned direct heating type sludge dries charcoal
Change mechanism 10 also to draw the gas of the discharge of heat pump 900 by setting blower unit 1000 and the gas is passed through vent gas treatment dress
In setting, the direct emission of pernicious gas is avoided.The setting of blower unit 1000 can also make the high-temperature gas quilt in combustion chamber 200
It is introduced into revolving drum 110, accelerates the flowing of high-temperature gas, improve drying, the charing of the mud granule in revolving drum 110
Efficiency
Blower unit 1000 is preferably air-introduced machine, it can be appreciated that blower unit 1000 can be with other equipment such as suction ventilator
Deng.Above-mentioned direct heating type sludge drying charing mechanism 10 can also include exhaust gas processing device.
Shown in Figure 2, in a specific example, the inner wall of revolving drum 110 is connected with multiple shovelling plates 130, shovelling plate 130 with
Connection relationship between the inner wall of revolving drum 110 can be welding.One end of shovelling plate 130 is connected on the inner wall of revolving drum 110,
The other end extends towards the axle center of revolving drum 110.The setting of shovelling plate 130 can be realized beating for the mud granule in revolving drum 110
It dissipates, helping the sludge to agglomerate loosely is in small graininess, is also convenient for the High Temperature Gas entered in revolving drum 110 from combustion chamber 200
Body is dried loose mud granule, is carbonized, to improve the burning carbonate efficiency of next step.Preferably, shovelling plate 130 is in curved
Roll over shape.Shovelling plate 130 is spirally distributed in revolving drum 110.Several shovelling plates 130 are welded on the barrel of revolving drum 110 to spread to raise
Sludge is directly contacted with expanding the contact area of sludge and hot wind with hot wind that is reverse and coming, gradually completes drying, charing
Process.
Revolving cylinder drying carbonizer 100 is for drying carbonizer 100 1 from revolving cylinder for dewatered wet stock
After the investment of end, under the stirring of the shovelling plate 130 inside revolving drum 110, material is uniformly distributed and disperses in revolving drum 110, and
It is come into full contact with the hot-air of adverse current, accelerates heat transfer, in drying, carbonization process, material is having gradient revolving drum, copying
Under the action of plate, the discharge of 110 other end of revolving drum is moved to controllablely.
Above-mentioned direct heating type sludge drying charing mechanism 10 is able to achieve the drying charing of sludge, reduces the nocuousness such as bioxin
The discharge of substance, and also it is able to achieve recycling for the energy.Specifically, mud granule enters revolving cylinder drying carbonizer
In 100 revolving drum 110, the shovelling plate 130 rotated in revolving drum 110 drives mud granule rotation to realize to raise and spread, loosen, preceding
Into, and come into full contact with realizing drying, charing with hot gas that is reverse and coming, the mud granule after charing passes through revolution
The discharge port of cylinder 110 enters in combustion chamber, and device for simultaneous heating 400 is right in 300 air inlet to combustion chamber 200 of the first inlet duct
The gas entered in combustion chamber 200 is heated, and combustion chamber 200 burns to sludge carbon granule, the sludge carbon granule after burning
Drying, the charing of sludge are completed in discharge.Dust, powdered carbon and air can eliminate two by being sufficiently mixed burning in combustion chamber 200
The harmful substances such as Evil English dry revolving cylinder into oxygen after-flame in the high-temperature gas in revolving cylinder drying carbonizer 100
It will not burn again in dry carbonizer 100, and the temperature for entering the high-temperature flue gas of revolving cylinder drying carbonizer 100 is lower than
250 DEG C, which can avoid the generation of bioxin and reduces the generation of cracking gas and foul smell, can make the charcoal into combustion chamber 200
Calorific value with higher can generate more heats after burning.Since the gas entered in combustion chamber 200 has first passed through heating
The heating of device 400, therefore the sludge carbon granule in combustion chamber 200 can burn rapidly, further, the height that combustion chamber 200 generates
Wet body further passs through the direction of travel of the mud granule in revolving drum 110 and revolving drum 110 on the contrary, high-temperature gas can be to returning
Mud granule in rotating cylinder is heated to realize its drying, charing, and the sludge carbon granule of high temperature can burn after entering combustion chamber
More rapidly, efficiency of combustion is further improved.Due to entering revolving drum from revolving cylinder drying 100 discharge port of carbonizer
Gas in 110 can take away the part partial size smaller dirt in revolving drum when being discharged from revolving cylinder drying 100 gas outlet of carbonizer
Mud particle and harmful substance particle, the partial sludge particle and harmful substance particle carry out under the action of tubulent contact tower 510
Mutual coalescence forms the biggish dust of partial size, and the gas for being mixed with dust is separated by cleaner 520, and dust is re-introduced into
Burning in combustion chamber 200, so that the calorific value of dust or high degree, which had both been utilized, reduces containing for harmful substance in discharge gas
Amount, plays an important role environmental protection.
To sum up, the invention proposes sludge elder generation low temperature (less than 250 DEG C) drying, charing, the charcoal for generation of then burning again comes
The technical solution of charing institute's calorific requirement is provided, can only generate a small amount of cracking gas and foul smell in this way, the calorific value loss of sludge is little,
And effectively avoid the generation of bioxin.As shown in the attached drawing of one embodiment of the invention：The sludge of moisture content 80% or so passes through
After high pressure plate and frame filter press filter-press dehydration, the mud cake that moisture content is lower than 50% is formed, sand shape is ground into through pulverizer, is sent into revolution
Cylinder, revolving drum are having 5% gradient along sludge direction of advance, several shovelling plates are welded on the barrel of revolving drum to raise and spread sludge to expand
The contact area of big sludge and hot wind, and directly contacted with hot wind that is reverse and coming, drying, carbonization process are gradually completed, so
Discharging device resistant to high temperature namely the cooling mucking machine of high temperature resistant spiral that revolving drum falls into bottom of combustion chamber are left afterwards；High temperature resistant spiral shell
Multiple normal temperature air imports are arranged at the bottom for revolving cooling mucking machine, the air capacity entered by adjusting the second control oxygen valve control, so that it may
So that part (especially fine grain charcoal) burning occurs for the charcoal (fuel more clean than sludge) generated, heat is provided for charing
And use charcoal and obtain cooling its heat of recycling, it is an innovative point of the invention above.Completing drying, charing and temperature is 130 DEG C
Tail gas containing a large amount of dust enters tubulent contact tower, equipped with a large amount of high temperature resistants, wear-resisting, impact-resistant polytetrafluoroethylene (PTFE) inside tubulent contact tower
Hollow sphere, tail gas stream is out-of-date to be in suspended state, makes that fierce collision occurs between the dust particle in tail gas, causes to be difficult to bedding bag
Fine particle, the foul smell of formula deduster capture are easy to be caught by sack cleaner by large particle absorption coalescence at large particle
It obtains, is another innovative point of the invention above, most dust are removed subsequently into sack cleaner, subsequently into heat pump
Its thermal energy is recycled, normal temperature air is heated to 130 DEG C, exhaust temperature is down to 60 DEG C and removes exhaust gas processing device；130 DEG C of air warp
Combustion chamber is mixed into the dust (being a kind of highly effective fuel) from sack cleaner after heating device, that is, electric heater heating
It burns, is another innovative point of the invention above；Adjust two control oxygen valves namely first control oxygen valve, second control oxygen valve into
The electricity consumption of tolerance and electric heater makes the temperature of combustion chamber lower than 250 DEG C, and the temperature in revolving drum entire in this way can all be lower than
250℃.Revolving drum is placed on four carrying rollers, is rotated under the drive of transmission gear ring, is installed with the junction of non-rotating mechanism
There is dynamic seal ring to prevent from leaking out.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of direct heating type sludge drying charing mechanism, which is characterized in that including revolving cylinder drying carbonizer, burning
Room, the first inlet duct, heating device, tubulent contact tower, cleaner and heat pump；
The combustion chamber is connect with the revolving drum dynamic sealing of revolving cylinder drying carbonizer and the discharging with the revolving drum
Mouth connection, the combustion chamber are used to burn to the mud granule after the drying charing from the discharge port；Described first
Inlet duct, the heating device and the combustion chamber are successively linked in sequence, and first inlet duct is for conveying gas
In to the combustion chamber, the heating device is used to be delivered to first inlet duct indoor gas of burning and carries out
Heating；
The tubulent contact tower and the cleaner be connected in series in revolving cylinder drying carbonizer and the combustion chamber it
Between, the tubulent contact tower is connected to the gas outlet of the revolving drum, and the heat pump is connected on first inlet duct and adds with described
Between thermal, the heat pump is also attached to the cleaner.
2. direct heating type sludge drying charing mechanism according to claim 1, which is characterized in that the direct heating type
Sludge drying charing mechanism further include feeding device, the feeding device be rotationally connected with the revolving drum and with the revolution
The feed inlet connection of cylinder.
3. direct heating type sludge according to claim 2 drying charing mechanism, which is characterized in that the feeding device is
Feeding spiral conveyer.
4. direct heating type sludge drying charing mechanism according to claim 1 to 3, which is characterized in that described
Direct heating type sludge drying charing mechanism further include discharging device, the discharging device be connected to the combustion chamber and with it is described
Discharge port connection.
5. direct heating type sludge according to claim 4 drying charing mechanism, which is characterized in that the discharging device is
High temperature resistant spiral cools down mucking machine.
6. direct heating type sludge drying charing mechanism according to claim 4, which is characterized in that the direct heating type
Sludge drying charing mechanism further includes the second inlet duct, and second inlet duct is connected to the discharging device, and described the
Two inlet ducts into the discharging device for ventilating.
7. direct heating type sludge drying charing mechanism according to claim 1 to 3, which is characterized in that described
Cleaner is sack cleaner.
8. direct heating type sludge drying charing mechanism according to claim 1 to 3, which is characterized in that described
Direct heating type sludge drying charing mechanism further includes blower unit, and the blower unit is connected to the heat pump, the air inducing
Device is also used to connect exhaust gas processing device.
9. direct heating type sludge drying charing mechanism according to claim 1 to 3, which is characterized in that described
The inner wall of revolving drum is connected with multiple shovelling plates.
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| CN110986042A (en) * | 2019-12-25 | 2020-04-10 | 东莞市金茂污泥处置有限公司 | Solid waste treatment device and treatment method thereof |
| CN112080297A (en) * | 2020-10-08 | 2020-12-15 | 杨松 | Process system for preparing pyrolysis oil and carbon black from waste tires |
| CN113105916A (en) * | 2021-04-28 | 2021-07-13 | 山东省科学院能源研究所 | Biomass baking system and baking method and application thereof |
| WO2023044843A1 (en) * | 2021-09-23 | 2023-03-30 | 湖北富邦科技股份有限公司 | Efficient and rapid drying machine for granulated fertilizer and drying method |
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| CN108911473B (en) | 2023-10-24 |
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