CN102557378A - Sludge drying process - Google Patents
Sludge drying process Download PDFInfo
- Publication number
- CN102557378A CN102557378A CN201110128532XA CN201110128532A CN102557378A CN 102557378 A CN102557378 A CN 102557378A CN 201110128532X A CN201110128532X A CN 201110128532XA CN 201110128532 A CN201110128532 A CN 201110128532A CN 102557378 A CN102557378 A CN 102557378A
- Authority
- CN
- China
- Prior art keywords
- mud
- sludge
- mummification
- drying
- tunnel
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge drying process. The sludge drying process comprises the following steps of firstly transporting urban sludge with the water content of 80-85% into a sludge storage bin for sealed storage, controlling a grab crane to grab the sludge in the sludge storage bin and send into a feed hopper of a sludge feed device through a PLC (programmable logic controller) system, simultaneously adding a curing agent into the hopper, fully stirring, then transporting the sludge to a drying room of a drying device, utilizing residual heat from a flue and a ceiling of the drying room to absorb solar energy for a PC (polycarbonate) sun board in the drying room to perform heating, dehumidification and drying on the sludge in the drying room, and further conveying the dried sludge to the outside of the drying room through a material conveying machine. According to the sludge drying process disclosed by the invention, the sludge is operated in a closed environment and is not directly exposed in air, and toxic and harmful gas carried in the sludge can be prevented from polluting the environment; the residual heat of a brick kiln and the solar energy are utilized for drying, so that physical heat at the tail part of burned bricks in a tunnel kiln can be fully utilized, the heat of the sludge is increased and energy can be greatly saved; and a test proves that the water content in the dried sludge is low and can achieve 10-25%.
Description
Technical field
The invention belongs to the harmless processing of municipal sludge and utilization of resources technology, particularly a kind of sludge drying technology.
Background technology
Municipal sludge is meant the solid waste that produces in city domestic sewage, the Industrial Wastewater Treatment process, is the regular product of municipal sewage plant.This sludge moisture content is high, perishable, the intensive stink is arranged, and contain toxic substances such as dioxin, bacterium, parasitic ovum and heavy metal.Therefore, need carry out harmless treatment and utilization again to mud, the mummification of mud then is the steps necessary of sludge treatment.The method of mummification at present mainly contains: traditional heat energy sludge drying and sun power sludge drying.
Tradition heat energy sludge drying is meant and utilizes mud heat drying integrated equipment that mud is realized drying and other treatment.According to the way of contact of thermal medium and mud, mummification equipment can be divided into direct mummification, indirectly drying and direct-technology types such as indirect combined formula mummification again.Wherein direct heating sludge drying factory is the most representative be Europe maximum sludge drying factory---(but evaporated water is 7 * 5000kg/h) to the B ransands of Britain; Indirect heating mummification factory is the most representative to be that (but evaporated water is 4 * 5000kg/h) in Hispanic Barcelona.American-European common drying process is main with rotary drum mummification, fluidized-bed mummification, disc type mummification generally.
(1) rotary drum drying process.With Sweet natural gas or biogas is the energy; With the air is heat-transfer medium; Wet mud and part dewatered sludge particle mix in mixing tank, bring it into rotary drum drier by air-flow, and mud advances with stable speed rotation with air-flow in rotary drum drier; Shifted to urceolus by inner core, mud is become particle by mummification gradually.This technology is divided into direct-heating type and indirect heating type.Direct-fired rotary drum dryer will rely on very complicated supervisory system to keep.The indirect heating type rotary drum drier will be operated under the inert environments of strictness because temperature inside and calorie distribution are unbalanced, be prone to cause dust in the subenvironment gather, overheated, can cause very big dangerous hidden danger.
(2) fluidized-bed drying process.Mud does not need pre-treatment, directly sends into fluidized bed dryer.Whole bottom section at fluidized bed dryer blows into fluidizing agent equably, makes the inner fluidized layer that forms of tool.Along with mud mummification gradually, density reduces, and is raised to top, and the gas of taking away with top is again extracted fluidized-bed out.Because of its fluidization characteristic of composition decision of mud, this treatment system changes very sensitivity to the composition of mud, often causes the heat exchange in the fluidized-bed not carry out smoothly, and the wearing and tearing of fluidized-bed and pipeline are very serious, and the energy consumption of system is also higher.
(3) disc type drying process.With oil oven of external heat source heating, through oil body heat energy is passed to drying tray more earlier.Pan dryer is divided into horizontal disc moisture eliminator and vertical polydisc moisture eliminator.The horizontal disc moisture eliminator can only adopt this standard heating medium of steam.Tower crane is configured to a fixed body, forms a horizontal shell, and its inner swivel is by a hollow tubular shaft, and more fixing blank panels are full of steam etc. on the axle in the dish.Also have some agitating vanes to be used for convey materials.Thermal medium gets into disk through hub, is assigned in the rotator simultaneously.The shortcoming of this method is that the dustiness of mummification product is very big, must add independent granulating system in addition, and equipment weares and teares very easily.Vertical polydisc moisture eliminator utilizes the special evaporation curve of mud, is prepared into the hard particles of mud, makes sewage work when realizing the sewage qualified discharge, the safe non-secondary pollution of ability, and save energy.In addition, also have drying process such as disc-type, belt, daylight formula, Flash Type, but heavy construction is used seldom at present.
Domestic also have a lot of sludge drying techniques; Like application for a patent for invention (200910183107.3) sludge drying system and technology, comprise mixed stirring device, moisture eliminator, multifuctional solar room, solar energy air heat collector, hot dried mud warehouse, odor removal, auxiliary thermal source; Wet mud is put into mixed stirring device and is stirred; The mud that stirs is discharged by the outlet of mixed stirring device; Through the mud travelling belt mud is dropped in the moisture eliminator by the mud of moisture eliminator inlet, the warm air that produces of solar energy air heat collector feeds moisture eliminator through the blower fan in the solar energy air heat collector by the air outlet of solar energy air heat collector wet mud is carried out the first step dehydration and drying simultaneously; Above-mentioned mud is discharged by the moisture eliminator sludge outlet, and sends into through the mud travelling belt and to carry out for second step in the multifuctional solar room and pile up mummification; Last sludge product is deposited in the hot dried mud warehouse; The waste gas that produces in the whole process all can carry out foul smell through the odor removal that links to each other with mixed stirring device, moisture eliminator, multifuctional solar room, hot dried mud warehouse to be handled.Another part application for a patent for invention (201010280915.4) sludge drying treatment system, this system comprises: solar energy greenhouse, automatic mud cloth, stirring collection device and water storage device; Said solar energy greenhouse one end is provided with can be according to the diffuser of room temperature and moisture control control air input; The other end is provided with the exhaust outlet of deodorizing, air draft and water-freeing arrangement; Said automatic mud cloth, stirring collection device are positioned at solar energy greenhouse; Exhaust outlet in said water storage device and the solar energy greenhouse passes through pipe connection; Water storage device one end is connected with municipal sewage system.Sludge drying treatment system of the present invention is carried out minimizing and harmlessness disposing under the condition of not using primary energy source when handling domestic sludge, effectively practiced thrift the energy, has reduced energy consumption, has really accomplished energy-saving and emission-reduction.
Owing to will add flocculation agent in the sludge handling process, cause above-mentioned technology in the engineering practice of sludge drying, still to have a lot of problems.As the energy consumption of drying needs is bigger, and the moisture percentage in sewage sludge of mummification is than higher, and off gas treatment is thorough inadequately, also has a large amount of toxic gases, and the mud after the mummification is also further used.
Summary of the invention
The object of the present invention is to provide a kind of waste heat of baking bricks that makes full use of, and can remove waste gas, the sludge drying technology that water ratio is low.
The technical solution that realizes the object of the invention is: a kind of sludge drying technology; Be that 80～85% municipal sludge is transported to hermetically stored in the mud warehouse at first with water ratio; Control the grab bucket row through the PLC system and hang the hopper that the mud of picking up in the mud warehouse is delivered to the mud feeding device, after the adding solidifying agent also fully stirs in this hopper simultaneously, mud is delivered to the mummification chamber of mummification equipment; Carry out mummification at the indoor waste heat of this mummification through sun power and tunnel; Promptly in the material platform set inside that is arranged in the mummification chamber flue is arranged, the pipeline of this flue passes the mummification chamber, and the inlet mouth of flue communicates with the cooling zone of the tunnel of brickmaking; The mud feeding device is transported to mud the mud paver aggregate bin that is positioned at material platform top; The mud paver paves mud on the material platform uniformly; And mud turned over throwing; Extract waste heat from Cooling Section of Tunnel Kiln through pipeline and deliver in the flue, on the material platform, utilize by mud is heated dehumidifying and mummification for the PC sunlight board absorbs sun power from the waste heat of flue and mummification chamber ceiling, it is outdoor through conveyer dewatered sludge to be transported to mummification again.
The present invention compared with prior art, its remarkable advantage: operate mud (1) in closed environment, be not directly exposed in the air, mud with toxic and harmful free from environmental pollution.(2) utilize brick furnace residual heat and solar energy drying, the physics heat of the afterbody of baking bricks in the tunnel is got back and is made full use of, and increases self heat, saves mass energy.(3) mud drying process melts down burning removing exhaust gas, clean environment firendly again.(4) handle waste gas and the waste water that dewatered sludge produces, more further make the expellant gas clean environment firendly.(5) through test, the moisture percentage in sewage sludge of mummification is low, reaches 10-25%.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Description of drawings
Fig. 1 is a sludge drying process flow sheet of the present invention.
Fig. 2 is the composition synoptic diagram of sludge drying system of the present invention.
Fig. 3 is the structural representation of sealing mud warehouse: (a) being vertical view, (b) is left view.
Fig. 4 is the opening for feed synoptic diagram of sealing mud warehouse: (a) being structural representation, (b) is the work synoptic diagram.
Fig. 5 (a) is the front view that is used for the mummification equipment of dewatered sludge.
Fig. 5 (b) is the sectional view that is used for the mummification equipment of dewatered sludge.
Fig. 6 is the structural representation of dewatered sludge incinerator.
Fig. 7 is the structural representation of the emission-control equipment in the sludge drying.
Fig. 8 is a structural representation of handling the device of waste gas that dewatered sludge produces and waste water.
Fig. 9 is the structural representation that utilizes residual heat of tunnel kiln dewatered sludge device.
Embodiment
In conjunction with Fig. 1; Sludge drying technology of the present invention; Be that 80～85% municipal sludge is transported to hermetically stored in the mud warehouse 106 at first with water ratio; Hang 102 through PLC system control grab bucket row and pick up the hopper that mud warehouse 106 interior mud are delivered to mud feeding device 101 (feeding device is an equipment commonly used in the industry), (solidifying agent is comparatively conventional, can be normal temperature type solidifying agent and high-temperature curing agent in this hopper, to add solidifying agent simultaneously; Like lime, aqueous polyurethane, water-and acrylate, fluorine emulsion, organic silicon emulsion etc.) and fully stir after; Mud is delivered to the mummification chamber 203 (delivering in the mud paver aggregate bin through extruding transporting pattern) of mummification equipment, and the waste heat through sun power and tunnel 201 in this mummification chamber 203 carries out mummification, promptly in material platform 210 set inside that are arranged in mummification chamber 203 flue 205 is arranged; The pipeline of this flue 205 passes mummification chamber 203, and flue 205 communicates with the cooling zone of the tunnel 201 of brickmaking; Mud feeding device 101 is transported to mud mud paver 207 aggregate bins that are positioned at material platform 210 tops; Mud paver 207 paves mud on material platform 210 uniformly; Thickness is at 20-40cm, and mud is turned over throwing, turns over as every 1-2 hour and throws one time.Extracting waste heat from tunnel 201 cooling zones through pipeline delivers in the flue 205; On material platform 210, utilize by waste heat (sending hot temperature to be generally 300-500 ℃) and mummification chamber 203 ceilings and mud is heated dehumidifying and mummification, through conveyer 211 dewatered sludge is transported to outside the mummification chamber 203 again for the PC sunlight board absorbs sun power from flue 205.Mud after the mummification is through commercial detections such as AQUA-BOY detector for water content rate, and its water ratio has only 10～25%.After can seeing the drying sludge workshop off by the collection of siccative mud gathering machine and through worm conveyor, send in the siccative mud storage vault by rotary conveyor again and get the raw materials ready as brickmaking.Perhaps can with the mud after 203 mummification of mummification chamber through helical feed formula feeding machine 402 be transported to tunnel 201 heat up with on pinkeye in, the mud after the mummification is burned as postcombustion.Sludge silt after the burning is delivered to material storage yard and is got the raw materials ready as brickmaking after artificially collecting.
In the sludge drying technology of the present invention; Mummification chamber 203 is communicated with the air inlet port 208 on tunnel 201 insulation belts through blower fan; Sensor senses indoor exhaust air when mummification chamber 203 still contains toxic gas; When exceeding standard, then, waste gas is fed air inlet port 208 in tunnel 201, carry out burning disposal through the pipeline flow-direction air lock of adjustment blower fan like inflammable gass such as methane.Used transmitter all can be commercial, like gas sensor, Temperature Humidity Sensor etc., can comprise carbon dioxide sensor, carbon monoxide transducer, methane transducer etc. like gas sensor.
In the sludge drying technology of the present invention; Mummification chamber 203 is communicated with main ventpipe through the blower fan of bleeding (about 5-7 ten thousand m3/h); Main ventpipe feeds in the treating pond 504, on main ventpipe, connects a ventpipe, on a ventpipe, ventilating pit is set; When the sensor senses indoor gas allow compliance with emission standards of mummification chamber 203, the indoor gas of mummification chamber 203 is dispersed in the purifying waste water in the treating pond 504 through the ventilating pit on the ventpipe carries out discharging by gas shaft behind the deodorization and disinfection.
Above-mentioned drying process is realized through following system.
As shown in Figure 2; Realize the system of sludge drying; Comprise sealing mud warehouse, mummification equipment; Mud in the sealing mud warehouse is joined the mummification equipment that is used for dewatered sludge through feeding style; Wherein seal the mud warehouse and comprise that mud feeding device 101, grab bucket row hang 102, the first grab bucket row hanger rail road 103, the second grab bucket row hanger rail road 109, sludge sump stalk 105, opening for feed 107, watch-keeping cubicle 106; The said first grab bucket row hanger rail road 103 obstructs on 105 two relative sidewalls with the second grab bucket row hanger rail road, the 109 parallel sludge sumps that are located at, and the height of position is identical, is 60% to 80% of said sidewall height like the first grab bucket row hanger rail road 103 and the second grab bucket row hanger rail road 109 apart from the height that sludge sump obstructs 105 diapires; Promptly wherein two relative sludge sumps obstruct 105 sidewalls and are respectively equipped with a brace table (as shown in Figure 3); On two brace tables, lay a grab bucket row hanger rail road respectively, the grab bucket row hangs 102 and on two grab bucket row hanger rail roads, slides, and the grab bucket row hangs 102 grab bucket and also can on the direction perpendicular to grab bucket row hanger rail road, slide simultaneously.Grab bucket row hangs 102 two ends and goes hanger rail road 109 with the first grab bucket row hanger rail road 103 and second grab bucket respectively and be slidingly connected; Opening for feed 107 is located on the sidewall of sludge sump stalk 105; The outside that the sludge sump perpendicular to the first grab bucket row hanger rail road 103 and the second grab bucket row hanger rail road, 109 directions obstructs 105 sidewalls be provided with one isolate between 110; This sidewall is also as a sidewall of 110 between said isolation; 110 are provided with watch-keeping cubicle 106 and mud feeding device 101 between isolation, wherein mud feeding device 101 be located at sludge sump obstruct 105 sidewalls and isolate between the intersection of sidewall, and the height of mud feeding device 101 obstructs the half the suitable of 105 sidewall height with sludge sump.Watch-keeping cubicle 106 through cable connect the grab bucket row hang 102 with opening for feed 107; The grab bucket row hangs 102 and picks up the hopper that the interior mud of sealing mud warehouse is delivered to mud feeding device 101; This mud feeding device 101 can be the hydraulic pressure feed system of routine; Mud is delivered to the mummification chamber 203 of mummification equipment, shown in Fig. 3 (a), Fig. 3 (b).
The described mummification equipment that is used for dewatered sludge comprises roof 2031, body of wall 2032, material platform 210 and mud paver 207; The mummification chamber 203 that this roof 2031 (being PC sunlight board material), body of wall 2032 and ground are formed; And transmitter 209 is set in mummification chamber 203, and (used transmitter all can be commercial; Like gas sensor, Temperature Humidity Sensor etc., can comprise carbon dioxide sensor, carbon monoxide transducer, methane transducer etc. like gas sensor), described material platform 210 is arranged in mummification chamber 203; Set inside at material platform 210 has flue 205; The pipeline of this flue 205 passes mummification chamber 203, and flue 205 communicates with the cooling zone of tunnel 201, above material platform 210, is provided with mud paver 207; Mud feeding device 101 is transported to mud in mud paver 207 aggregate bins; This mud paver 207 paves mud, turn over and throws the back and by absorbing sun power from the waste heat of flue 205 and roof 2031 mud is heated dehumidifying and mummification, the mud of mummification through siccative collection device 3 (like conveyer 211) be transported to mummification chamber 203 outer siccatives store in a warehouse between 2, shown in Fig. 5 (a), Fig. 5 (b).In addition, in production practice, a master control room 7 will be set also outside mummification chamber 203, power supply and some opertaing devices are in being installed on like the PLC system, so that observe and the process of control mummification.Mud after the mummification detects through commercial AQUA-BOY detector for water content rate, and its water ratio can reach 10～25%.
The sealing mud warehouse of realizing the system of sludge drying also comprises first blower fan 104 and louver(-vre) 108; Said first blower fan 104 is located at sludge sump stalk 105 and is parallel on the first grab bucket row hanger rail road 103 and the sidewall near mud feeding device 101, and the height that this first blower fan 104 obstructs 105 diapires apart from sludge sump is approximately the 80%-90% of said sidewall height.The height of this first blower fan 104 is higher than the first grab bucket row hanger rail road 103, and louver(-vre) 108 is located on another relative sidewall of sludge sump stalk 105 and first blower fan 104, and highly the height with first blower fan 104 is roughly suitable for it.First blower fan 104 also is connected watch-keeping cubicle 106 through cable with louver(-vre) 108.First blower fan 104 is used for the foul smell suction mummification chamber in the mud warehouse 203 is handled, and therefore in the mud warehouse, forms negative pressure, and louver(-vre) 108 makes outside fresh air get into the mud warehouse.The diapire of sludge sump stalk 105 is downward-sloping by opening for feed 107 beginnings.The angle that tilts is 3 ° to 15 °, and it is inner to make that like this mud of sending into can be advanced into the mud warehouse certainly.Watch-keeping cubicle 106 is provided with the PLC system; Through cable connect that the grab bucket row hangs 102, the blower fan 104 of bleeding, opening for feed 107 and louver(-vre) 108; The switching of may command opening for feed;, and open and close louver(-vre) 108 synchronously and give the ventilation of mud warehouse through opening and closing the speed of first blower fan, 104 control dusty gass to 203 dischargings of mummification chamber according to the concentration of mud warehouse internal contamination gas, also operation grab bucket row hangs 102 and grasps mud and be transported to mud feeding device 101.Double-deck transparent material is adopted in watch-keeping cubicle 106, and the height in watch-keeping cubicle 106 is not less than the height of mud feeding device 101, for observation.
Shown in Fig. 4 (a), Fig. 4 (b); The opening for feed 107 of sealing mud warehouse of realizing the system of sludge drying (also is meant between the dump among Fig. 21; In order to make the sealing of mud warehouse; With between dump 1, the opening for feed 107 that promptly seals the mud warehouse designs) comprise first sect 801, be provided with second sect 802, discharging hopper 804 and the Hydraulic for lifting load bar 805 of blower fan 803, this second sect 802 is located at a side edge of sludge sump stalk 105; First sect 801 is located at apart from second sect 802 away from 6 to 12 meters of mud warehouse direction; One end of said discharging hopper 804 is near second sect 802, and the other end is near ground, the outside, and Hydraulic for lifting load bar 805 links to each other with the bottom of discharging hopper 804.The mud loading-unloading vehicle that loads mud is when approaching mud warehouse; Open earlier at first sect 801, this moment second sect 802 state that keeps shut, the mud loading-unloading vehicle is near discharging hopper 804; The vehicle driver handles the mud loading-unloading vehicle, and the mud of vehicle loading is discharged on the discharging hopper; After treating the whole completions of discharge of mud, the mud loading-unloading vehicle rolls 801, the first sects 801, first sect away from and closes again, and open subsequently at second sect 802; Hydraulic for lifting load bar 805 begins action, makes discharging hopper 804 be upturned near an end at first sect 801, and is downward-sloping near an end at second sect 802, makes that the mud in the discharging hopper 804 is discharged in the mud warehouse through second sect 802 of opening; After mud was unsnatched, Hydraulic for lifting load bar 805 recovered former state, and discharging hopper 804 is set level again, and second sect 802 is closed again.Also be provided with the blower fan 803 of bleeding on second sect 802, open at first sect 801, the blower fan 803 of bleeding when the mud loading-unloading vehicle drives into is started working; Foul smell is drawn into the mud warehouse; Close at first sect 801, when opened at second sect 802, the blower fan 803 of bleeding quit work.
As shown in Figure 6; In the system that realizes sludge drying, also increase dewatered sludge incinerator 4, be located at the intensification band of tunnel, promptly between preheating zone and the roasting band; Form negative pressuren zone in the kiln here, make the effectively mud (arrow is the direction of hot gas among Fig. 6) behind the burning and drying of heat in the kiln.This dewatered sludge incinerator 4 comprises the helical feed formula feeding machine 402 of being located at tunnel 201 tops; The feed end of this helical feed formula feeding machine 402 is provided with funnel 403; This funnel links to each other with the mummification chamber 203 of mummification equipment through conveying belt; Mud gets in the funnel 403 through conveying belt after through the mummification of mummification chamber 203, the discharge end of helical feed formula feeding machine 402 and tunnel 201 intensifications with on pinkeye 408 link to each other, the output terminal of said helical feed formula feeding machine 402 links to each other through valve 407 with the pinkeye of tunnel 201; The control pinkeye is closed; Prevent calorific loss, can effectively control dewatered sludge and get into the speed that tunnel 201 burns, reach better effect.
As shown in Figure 7; In the system that realizes sludge drying, also increase the emission-control equipment 5 in a kind of sludge drying; This emission-control equipment 5 comprises inlet pipe 301, second blower fan 303, escape pipe 302, and the inlet mouth of described inlet pipe 301 is communicated with mummification chamber 203, and the air outlet of inlet pipe 301 is communicated with the inlet mouth of escape pipes 302 through second blower fan 303; The air outlet of this escape pipe 302 is communicated with the air inlet port 208 on tunnel 201 insulation belts; Sensor senses indoor exhaust air when mummification chamber 203 still contains toxic gas, then passes through the pipeline flow-direction air lock of adjustment second blower fan 303, waste gas is fed in the tunnel 201 through air inlet port 208 carry out burning disposal.
Mud drying process carries out in mummification chamber 203.The obnoxious flavour that mud produces in drying process is released in the mummification chamber 203.Utilize second blower fan 303, the obnoxious flavour in the mummification chamber 203 is pumped in the inlet pipe 301.The obnoxious flavour escape pipe 302 of flowing through finally gets in the tunnel 201.In tunnel 201, toxic gas is by high-temp combustion, thereby eliminated toxic gas, avoids directly the toxic gas that produces in the mud drying process being discharged contaminate environment to the external world.Emission-control equipment in sludge drying can also be provided with valve 304, and valve 304 is arranged in inlet pipe 301.According to the situation of sludge drying, can utilize valve 304 to regulate the flow of effusive waste gas from mummification chamber 203 at any time.
As shown in Figure 8; In the system that realizes sludge drying, also increase the another kind of waste gas of dewatered sludge generation and the device of waste water handled; The waste gas that this processing dewatered sludge produces and the device of waste water comprise transfer lime 507, the 3rd blower fan 202, treating pond 504, an end of the outlet connection transfer lime 507 of mummification chamber 203, and the other end of this transfer lime 507 connects the import of the 3rd blower fan 202; The outlet of the 3rd blower fan 202 feeds in the treating pond 504 through main ventpipe 508; On main ventpipe 508, connect a plurality of ventpipes 509, number is confirmed as required, as 4-10.On each ventpipe 509, ventilating pit 510 is set; When the sensor senses indoor gas allow compliance with emission standards of mummification chamber 203; The indoor gas of mummification chamber 203 is dispersed in the purifying waste water in the treating pond 504 (like liming, be used for absorbing waste gas) through ventilating pit 510 carries out deodorization and disinfection.In addition, an end of the outlet of mummification chamber 203 and transfer lime 507 links to each other through gate 505; Chimney 503 also is set, and this chimney 503 communicates with treating pond 504 through vapor pipe 511, and this vapor pipe is provided with lock 506.
As shown in Figure 9; Between the flue 205 of the system of realization sludge drying and the cooling zone of tunnel 201 residual heat using device 6 is set; This residual heat using device 6 comprises to be utilized waste heat inlet pipe 601, four fan device 602, utilizes waste heat escape pipe 603; Utilize the cooling zone of the inlet mouth connection tunnel 201 of waste heat inlet pipe 601; Utilize the air outlet of waste heat inlet pipe 601 to be communicated with the inlet mouth that utilizes waste heat escape pipe 603 through four fan device 602, this utilizes the air outlet of waste heat escape pipe 603 to be communicated with flue 205.The exhausting amount that frequency transformer 604 is controlled four fan device 602 is set utilizing between waste heat escape pipe 603 and the flue 205.
Because being the cooling zone from tunnel 201, the adobe of processing transports, so, utilize the inlet mouth of waste heat inlet pipe 601 to be communicated with the cooling zone of tunnel 201.Owing to need utilize the waste heat of tunnel 201, so need not add the device of cooling residual heat such as blower fan at the cooling zone of tunnel 201.Like this, the cooling zone of tunnel 201 has just omitted refrigerating unit, has simplified the structure of tunnel 201.Utilize four fan device 602, the waste heat of tunnel 201 is got into from the cooling zone of tunnel 201 utilize waste heat inlet pipe 601, through utilizing waste heat escape pipe 603, finally get into mummification chamber 203 again.Under change in the chamber 203, waste heat discharges its heat dewatered sludge.Adopt this device, the waste heat of tunnel 201 is delivered directly to dewatered sludge in the mummification chamber 203.This had both reached the purpose of dewatered sludge, made full use of existing thermal source again, helped economizing on resources.
Above-mentioned tunnel 201 is common practise of those skilled in the art, begins from opening for feed, gets into heat up band, roasting band, insulation belt, cooling zone successively, arrives discharge port at last and finishes.Waste gas is sent into burning from the insulation belt of tunnel 201.
Claims (4)
1. sludge drying technology; It is characterized in that at first with water ratio being that 80～85% municipal sludge is transported to the interior hermetically stored of mud warehouse (106); Hang (102) through PLC system control grab bucket row and pick up the hopper that the interior mud of mud warehouse (106) is delivered to mud feeding device (101); After in this hopper, adding solidifying agent and abundant the stirring simultaneously; Mud is delivered to the mummification chamber (203) of mummification equipment, and the waste heat through sun power and tunnel (201) in this mummification chamber (203) carries out mummification, promptly in material platform (210) set inside that is arranged in mummification chamber (203) flue (205) is arranged; The pipeline of this flue (205) passes mummification chamber (203), and flue (205) communicates with the cooling zone of the tunnel (201) of brickmaking; Mud feeding device (101) is transported to mud mud paver (207) aggregate bin that is positioned at material platform (210) top; Mud paver (207) paves mud on material platform (210) uniformly; And mud turned over throwing; Extracting waste heat from tunnel (201) cooling zone through pipeline delivers in the flue (205); Go up the waste heat and mummification chamber (203) ceiling that utilize by from flue (205) at material platform (210) and mud is heated dehumidifying and mummification, through siccative collection device 3 dewatered sludge is transported to outside the mummification chamber (203) again for the PC sunlight board absorbs sun power.
2. sludge drying technology according to claim 1; It is characterized in that will from the mud after the mummification of mummification chamber (203) through helical feed formula feeding machine (402) be transported to tunnel (201) heat up with on pinkeye in, the mud after the mummification is burned as postcombustion.
3. sludge drying technology according to claim 1; It is characterized in that mummification chamber (203) is communicated with the air inlet port (208) on tunnel (201) insulation belt through blower fan; Sensor senses indoor exhaust air when mummification chamber (203) still contains toxic gas; Then pass through the pipeline flow-direction air lock of adjustment blower fan, waste gas is fed in the tunnel (201) through air inlet port (208) carry out burning disposal.
4. sludge drying technology according to claim 1; It is characterized in that mummification chamber (203) is communicated with main ventpipe through the blower fan of bleeding; Main ventpipe feeds in the treating pond (504); On main ventpipe, connect a ventpipe; On ventpipe, ventilating pit is set, when the sensor senses indoor gas allow compliance with emission standards of mummification chamber (203), the indoor gas of mummification chamber (203) is dispersed in the purifying waste water in the treating pond (504) through the ventilating pit on the ventpipe carries out discharging by gas shaft behind the deodorization and disinfection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110128532XA CN102557378B (en) | 2011-05-16 | 2011-05-16 | Sludge drying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110128532XA CN102557378B (en) | 2011-05-16 | 2011-05-16 | Sludge drying process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102557378A true CN102557378A (en) | 2012-07-11 |
| CN102557378B CN102557378B (en) | 2013-10-16 |
Family
ID=46404197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110128532XA Active CN102557378B (en) | 2011-05-16 | 2011-05-16 | Sludge drying process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102557378B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913044A (en) * | 2014-04-09 | 2014-07-09 | 广州世正环保科技发展有限公司 | Drying and homogenizing method for comprehensively utilizing materials of construction waste |
| CN103913055A (en) * | 2014-04-09 | 2014-07-09 | 广州世正环保科技发展有限公司 | Drying and homogenizing bin for comprehensively utilizing materials of construction waste |
| CN108128914A (en) * | 2018-01-30 | 2018-06-08 | 洛阳理工学院 | A kind of novel sewage treatment unit |
| CN110624932A (en) * | 2019-09-11 | 2019-12-31 | 上海海顾新材料科技有限公司 | River, lake and reservoir bottom mud building material treatment system and treatment method |
| CN112452111A (en) * | 2019-09-06 | 2021-03-09 | 山东福航新能源环保股份有限公司 | Sludge drying brick making system comprehensively utilizing solar energy and kiln waste heat |
| CN116947281A (en) * | 2023-06-05 | 2023-10-27 | 合肥吴山新型建材有限公司 | Method for pyrolyzing and deodorizing sludge by using tunnel kiln |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066831A (en) * | 2007-06-05 | 2007-11-07 | 浙江大学 | Sludge storing and preheating system utilizing sludge drying tail gas afterheat |
| JP2008149304A (en) * | 2006-12-15 | 2008-07-03 | Everest:Kk | Sludge drying method and dried sludge obtained after drying |
| CN101948230A (en) * | 2010-09-13 | 2011-01-19 | 苏州奥泰斯环保科技发展有限公司 | Sludge drying treatment system |
| CN201753303U (en) * | 2010-04-21 | 2011-03-02 | 北京机电院高技术股份有限公司 | Steam low-temperature quenching and tempering complete sludge drying device |
-
2011
- 2011-05-16 CN CN201110128532XA patent/CN102557378B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008149304A (en) * | 2006-12-15 | 2008-07-03 | Everest:Kk | Sludge drying method and dried sludge obtained after drying |
| CN101066831A (en) * | 2007-06-05 | 2007-11-07 | 浙江大学 | Sludge storing and preheating system utilizing sludge drying tail gas afterheat |
| CN201753303U (en) * | 2010-04-21 | 2011-03-02 | 北京机电院高技术股份有限公司 | Steam low-temperature quenching and tempering complete sludge drying device |
| CN101948230A (en) * | 2010-09-13 | 2011-01-19 | 苏州奥泰斯环保科技发展有限公司 | Sludge drying treatment system |
Non-Patent Citations (2)
| Title |
|---|
| 史骏: "污泥干化与水泥窑焚烧协同处置工艺系统分析与案例", 《2010年全国废水排水技术信息网年会论文集》, 31 December 2010 (2010-12-31) * |
| 高颖: "STR太阳能污泥干化处理系统-采用各种辅助热源的运转经验", 《太阳能》, no. 1, 15 January 2011 (2011-01-15) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913044A (en) * | 2014-04-09 | 2014-07-09 | 广州世正环保科技发展有限公司 | Drying and homogenizing method for comprehensively utilizing materials of construction waste |
| CN103913055A (en) * | 2014-04-09 | 2014-07-09 | 广州世正环保科技发展有限公司 | Drying and homogenizing bin for comprehensively utilizing materials of construction waste |
| CN103913044B (en) * | 2014-04-09 | 2015-12-09 | 广州世正环保科技发展有限公司 | A kind of dry homogenization process of building castoff comprehensive utilization material |
| CN103913055B (en) * | 2014-04-09 | 2015-12-30 | 广州世正环保科技发展有限公司 | A kind of dry homogenizing bin of building castoff comprehensive utilization material |
| CN108128914A (en) * | 2018-01-30 | 2018-06-08 | 洛阳理工学院 | A kind of novel sewage treatment unit |
| CN112452111A (en) * | 2019-09-06 | 2021-03-09 | 山东福航新能源环保股份有限公司 | Sludge drying brick making system comprehensively utilizing solar energy and kiln waste heat |
| CN110624932A (en) * | 2019-09-11 | 2019-12-31 | 上海海顾新材料科技有限公司 | River, lake and reservoir bottom mud building material treatment system and treatment method |
| CN116947281A (en) * | 2023-06-05 | 2023-10-27 | 合肥吴山新型建材有限公司 | Method for pyrolyzing and deodorizing sludge by using tunnel kiln |
| CN116947281B (en) * | 2023-06-05 | 2024-05-24 | 合肥吴山新型建材有限公司 | Method for pyrolyzing and deodorizing sludge by using tunnel kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102557378B (en) | 2013-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102381877B (en) | Method for brickmaking by comprehensive utilization of desiccated sludge | |
| WO2019095964A1 (en) | Treatment method and device for cooperatively burning garbage and semi-dry sludge | |
| CN102889599B (en) | Wet sewage sludge combustion furnace | |
| CN102153256B (en) | Sludge treatment method and sludge treatment system | |
| CN102557378B (en) | Sludge drying process | |
| CN103322574B (en) | Utilize method and the treatment system thereof of tunnel kiln brick sintering production line cooperative disposal house refuse | |
| CN103256608B (en) | sludge incineration method | |
| CN102531317B (en) | Sludge drying system | |
| CN106365399B (en) | A kind of city sludge treatment process | |
| CN103964671B (en) | A kind of mud drying device and utilize the method for this device dewatered sludge | |
| CN212948404U (en) | Chemical solid waste sludge ceramsite apparatus for producing | |
| CN104482742A (en) | Fuel drying device used for direct combustion biomass power station | |
| CN105385465B (en) | A kind of refuse pyrolysis plant and method | |
| CN104819471A (en) | Garbage rapid incinerator | |
| CN202214277U (en) | Sludge drying system | |
| CN105371283A (en) | Sludge drying and incinerating process | |
| CN109836022A (en) | Sludge treating system and sludge drying mechanism | |
| CN102372414A (en) | Method for processing sludge by carbonization and equipment thereof | |
| CN108105777B (en) | Small-size continuous type domestic waste incineration disposal system | |
| CN100432602C (en) | Method for drying refuse of refuse burning generating plant using solar hot-air device | |
| CN103964668B (en) | Sludge treatment process equipment and treatment method | |
| CN211886129U (en) | Sludge drying brick making system comprehensively utilizing solar energy and kiln waste heat | |
| CN105366913B (en) | High-effective sludge dehydration drying process system | |
| CN101413667B (en) | Method for processing urban domestic garbage of kiln external incineration furnace | |
| CN204693439U (en) | The quick incinerator of a kind of rubbish |
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 | ||
| CP03 | Change of name, title or address |
Address after: 210012 Zhonghua Menwai Xinjian, Yuhuatai District, Nanjing City, Jiangsu Province Patentee after: Nanjing Xinxiang Environmental Protection Industry Co.,Ltd. Address before: 210039 No. 1, Jiantong Road, Banqiao street, Yuhuatai District, Nanjing, Jiangsu Province Patentee before: Nanjing Xinxiang New Building Materials Co.,Ltd. |
|
| CP03 | Change of name, title or address |