CN102531317B - Sludge drying system - Google Patents
Sludge drying system Download PDFInfo
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- CN102531317B CN102531317B CN2011101285565A CN201110128556A CN102531317B CN 102531317 B CN102531317 B CN 102531317B CN 2011101285565 A CN2011101285565 A CN 2011101285565A CN 201110128556 A CN201110128556 A CN 201110128556A CN 102531317 B CN102531317 B CN 102531317B
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- 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
Abstract
The invention discloses a sludge drying system, which comprises a sealed sludge storage cabin and a drying device. Sludge in the sealed sludge storage cabin is fed into the drying device for drying the sludge through a material feeding mode. The sealed sludge storage cabin comprises a sludge feeding device, a grab bucket crane, a grab bucket crane track, a sludge tank barrier, a feeding port and a control chamber. The grab bucket crane grabs the sludge in the sealed sludge storage cabin and sends the sludge to a feeding hopper of the sludge feeding device which transmits the sludge to the drying device. The drying device comprises a roof, a wall body, a material table and a sludge paver. The sludge paver paves and throws the sludge, and then the sludge is performed with warming for dehumidification and drying by waste heat from a flue and solar energy, and the dried sludge is conveyed outside the drying chamber through a material conveying machine. By means of the sludge drying system, the sludge is placed in a sealed environment, polluted gas generated by the sludge is prevented from being directly discharged into the air, waste heat of a brick kiln and the solar energy are used for drying the sludge, and physical heat on the tail portions of fired bricks in a tunnel brick kiln can be used fully, so that a large amount of energy can be saved.
Description
Technical field
The invention belongs to the harmless processing of municipal sludge and utilization of resources technology, particularly a kind of sludge drying system.
Background technology
Municipal sludge refers to the solid waste that produces in city domestic sewage, During Industrial Wastewater Treatment Process, is the regular product of municipal sewage plant.This sludge moisture content is high, perishable, and strong stink is arranged, and contains the toxic substances such as dioxin, bacterium, parasitic ovum and heavy metal.Therefore, need to carry out harmless treatment and recycling to mud, the mummification of mud 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 refers to utilize the sludge heat drying integrated equipment to realize drying and other treatment to mud.According to the way of contact of thermal medium and mud, drying equipment can be divided into again direct mummification, indirectly drying and directly-technology types such as indirect association type mummification.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 is that (but evaporated water is 4 * 5000kg/h) in Hispanic Barcelona.American-European common drying process is generally take rotary drum mummification, fluidized-bed mummification, disc type mummification as main.
(1) rotary drum drying process.Take Sweet natural gas or biogas as the energy, take air as heat-transfer medium, wet mud and part dewatered sludge particle mix in mixing tank, by air-flow, it is brought into rotary drum drier, 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 technique 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 operate under strict inert environments, because temperature and the calorie distribution of inside are unbalanced, easily cause dust in subenvironment gather, overheated, can cause very large 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 its inner fluidized layer that forms.Along with mud mummification gradually, density reduces, and is raised to top, then extracts fluidized-bed out with the gas that top is taken away.Because the composition of mud determines its fluidization characteristic, this treatment system changes very responsive to the composition of mud, often cause the heat exchange in 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.First heat an oil oven with external heat source, then by oil body, heat energy is passed to drying tray.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 internal rotating part is fixed some blank panels by a hollow tubular shaft on axle, be full of steam etc. in dish.Also have some agitating vanes for delivery of material.Thermal medium enters disk by central shaft, is assigned in rotator simultaneously.The shortcoming of the method is that the dustiness of mummification product is very big, must separately add independent granulating system, 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 energy, and save energy.In addition, also have the 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, as application for a patent for invention (200910183107.3) sludge drying system and technique, 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, by the mud travelling belt, mud is dropped in moisture eliminator by the mud entrance of moisture eliminator, the warm air that produces of solar energy air heat collector passes into moisture eliminator by the blower fan in 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 by the mud travelling belt and carry out second step in the multifuctional solar room and pile up mummification; Last sludge product is deposited in hot dried mud warehouse; The waste gas that produces in whole process all can carry out foul smell by the odor removal that is connected with mixed stirring device, moisture eliminator, multifuctional solar room, hot dried mud warehouse to be processed.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; Described 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; Described automatic mud cloth, stirring collection device are positioned at solar energy greenhouse; Described water storage device is connected by pipeline with exhaust outlet in solar energy greenhouse; Water storage device one end is connected with municipal sewage system.Sludge drying treatment system of the present invention carries out minimizing and harmlessness disposing under the condition of not using primary energy source when processing domestic sludge, effectively saved the energy, has reduced energy consumption, has really accomplished energy-saving and emission-reduction.
Owing to will adding flocculation agent in sludge handling process, cause above-mentioned technology still to have a lot of problems in the engineering practice of sludge drying.As larger in the energy consumption of drying needs, the moisture percentage in sewage sludge of mummification is higher, and off gas treatment is thorough not, also has a large amount of toxic gases, and the mud after 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 takes full advantage of, and can remove waste gas, the sludge drying system that water ratio is low.
the technical solution that realizes the object of the invention is: a kind of sludge drying system, comprise sealed sludge storage bunker, drying equipment, mud in sealed sludge storage bunker is joined drying equipment for dewatered sludge by feeding style, wherein sealed sludge storage bunker comprises sludge feeding device, the grab bucket row hangs, the first grab bucket row hanger rail road, the second grab bucket row hanger rail road, the sludge sump stalk, opening for feed, the watch-keeping cubicle, described the first grab bucket row hanger rail road and the second parallel being located on two relative sidewalls of sludge sump stalk in grab bucket row hanger rail road, the height of position is identical, respectively with the first grab bucket row hanger rail road, two ends that grab bucket row hangs and the second grab bucket are gone the hanger rail road and are slidably connected, opening for feed is located on a sidewall of sludge sump stalk, be provided with between an isolation in the outside perpendicular to the sludge sump stalk sidewall of the first grab bucket row hanger rail road and the second grab bucket row hanger rail road direction, this sidewall is also as a sidewall between described isolation, be provided with watch-keeping cubicle and sludge feeding device between isolation, wherein sludge feeding device is located at the intersection of sidewall between sludge sump stalk sidewall and isolation, the watch-keeping cubicle connects the grab bucket row by cable and hangs and opening for feed, the grab bucket row hangs the hopper that the mud of picking up in sealed sludge storage bunker is delivered to sludge feeding device, this sludge feeding device is delivered to mud the mummification chamber of drying equipment,
described drying equipment for dewatered sludge comprises the roof, body of wall, material table and mud paver, this roof, the mummification chamber that body of wall and ground form, and at the indoor sensor that arranges of mummification, described material table is arranged in the mummification chamber, inside at material table is provided with flue, the pipeline of this flue passes the mummification chamber, flue communicates with the cooling zone of tunnel furnace, be provided with the mud paver above material table, sludge feeding device is transported to mud in mud paver aggregate bin, this mud paver paves mud, turn over after throwing and by waste heat and roof absorption sun power from flue, mud is heated dehumidifying and mummification, it is outdoor that the mud of mummification is transported to mummification by conveyer.
The present invention compared with prior art, its remarkable advantage: (1) is by the design of sealed sludge storage bunker, make mud in closed environment, be not directly exposed in air, the dusty gas that prevents sludge creation directly is discharged in air, and the sewage that prevents sludge creation directly infiltrates the earth's surface, pollutes the water and soil environment, and body refuse can be unified to collect in the space of sealing.(2) by the design of unloading system of sludge loading vehicle in sealed sludge storage bunker, not only make mud better in closed environment, and protected sludge loading vehicle operator's safety.(3) in drying equipment, utilize brick furnace residual heat and solar energy drying, the physics heat of the afterbody of baking bricks in tunnel furnace is got back and is taken full advantage of, and increases self heat, saves mass energy.(4) mud drying process return combustion removing exhaust gas again, clean environment firendly.(5) process waste gas and the waste water that dewatered sludge produces, more further make the expellant gas clean environment firendly.(6) 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 the composition schematic diagram of sludge drying system of the present invention.
Fig. 2 is the structural representation of sealed sludge storage bunker: (a) being vertical view, is (b) left view.
Fig. 3 is the opening for feed schematic diagram of sealed sludge storage bunker: (a) being structural representation, is (b) the work schematic diagram.
Fig. 4 (a) is the front view for the drying equipment of dewatered sludge.
Fig. 4 (b) is the sectional view for the drying equipment of dewatered sludge.
Fig. 5 is the structural representation of dry sludge incinerating device.
Fig. 6 is the structural representation of the emission-control equipment in sludge drying.
Fig. 7 is the structural representation of processing the device of waste gas that dewatered sludge produces and waste water.
Fig. 8 is the structural representation that utilizes residual heat of tunnel kiln dewatered sludge device.
Embodiment
as shown in Figure 1, sludge drying system of the present invention, comprise sealed sludge storage bunker, drying equipment, mud in sealed sludge storage bunker is joined drying equipment for dewatered sludge by feeding style, wherein sealed sludge storage bunker comprises sludge feeding device 101, the grab bucket row hangs 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, described the first grab bucket row hanger rail road 103 and the second grab bucket row hanger rail road 109 parallel being located on 105 two relative sidewalls of sludge sumps stalk, the height of position is identical, as described in as the first grab bucket row hanger rail road 103 and the second grab bucket row hanger rail road 109 apart from the height of sludge sump stalk 105 diapires being 60% to 80% of the sidewall height, namely wherein two relative sludge sump stalk 105 sidewalls are respectively equipped with a brace table (as shown in Figure 2), lay respectively a grab bucket row hanger rail road on two brace tables, grab bucket row hangs 102 and slides on two grab bucket row hanger rail roads, grab bucket row hangs 102 grab bucket and also can slide on the direction perpendicular to grab bucket row hanger rail road simultaneously.grab bucket row hangs respectively with the first grab bucket row hanger rail road 103,102 two ends and the second grab bucket and goes hanger rail road 109 and be slidably connected, opening for feed 107 is located on a sidewall of sludge sump stalk 105, be provided with between an isolation 110 in the outside perpendicular to sludge sump stalk 105 sidewalls of the first grab bucket row hanger rail road 103 and the second grab bucket row hanger rail road 109 directions, this sidewall is also as a sidewall of 110 between described isolation, between isolation, 110 are provided with watch-keeping cubicle 106 and sludge feeding device 101, wherein sludge feeding device 101 is located at the intersection of sidewall between sludge sump stalk 105 sidewalls and isolation, and half of the height of sludge feeding device 101 and sludge sump stalk 105 sidewall height is suitable.Watch-keeping cubicle 106 connects grab bucket row by cable and hangs 102 and opening for feed 107, the grab bucket row hangs 102 and picks up the hopper that the interior mud of sealed sludge storage bunker is delivered to sludge feeding device 101, this sludge feeding device 101 can be the hydraulic pressure feed system of routine, mud is delivered to the mummification chamber 203 of drying equipment, as shown in Fig. 2 (a), Fig. 2 (b).
described drying equipment for dewatered sludge comprises roof 2031, body of wall 2032, material table 210 and mud paver 207, this roof 2031 (being PC sunlight board material), body of wall 2032 and ground form mummification chamber 203, and 203 interiorly sensor 209 is set (sensor used all can be commercial in the mummification chamber, as gas sensor, Temperature Humidity Sensor etc., can comprise carbon dioxide sensor as gas sensor, carbon monoxide transducer, methane transducer etc.), described material table 210 is arranged in mummification chamber 203, be provided with flue 205 in the inside of material table 210, the pipeline of this flue 205 passes mummification chamber 203, flue 205 communicates with the cooling zone of tunnel furnace 201, be provided with mud paver 207 above material table 210, sludge feeding device 101 is transported to mud in mud paver 207 aggregate bins, this mud paver 207 paves mud, turn over after throwing and by waste heat and roof 2031 absorption sun power from flue 205, mud is heated dehumidifying and mummification, the mud of mummification is transported between the outer siccatives storage in mummification chamber 203 2 by siccative collection device 3 (as conveyer 211), as Fig. 4 (a), shown in Fig. 4 (b).In addition, in production practice, outside mummification chamber 203, a master control room 7 will be set also, power supply and some operating devices are in being installed on as the PLC system, in order to observe and control the process of mummification.Mud after mummification detects through commercial AQUA-BOY detector for water content rate, and its water ratio only has 10～25%.
The sealed sludge storage bunker of sludge drying system of the present invention also comprises the first blower fan 104 and louver(-vre) 108, described the 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 a close sidewall of sludge feeding device 101, and this first blower fan 104 is approximately the 80%-90% of described sidewall height apart from the height of sludge sump stalk 105 diapires.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 sludge sump stalk 105 another sidewall relative with the first blower fan 104, and highly the height with the first blower fan 104 is roughly suitable for it.The first blower fan 104 is connected with louver(-vre) and is also connected watch-keeping cubicle 106 by cable.The first blower fan 104 is used for therefore foul smell suction mummification chamber 203 processing in warehouse of sludge are formed negative pressure in warehouse of sludge, and louver(-vre) 108 makes extraneous fresh air enter warehouse of sludge.The diapire of sludge sump stalk 105 is downward-sloping by opening for feed 107 beginnings.The angle that tilts is 3 ° to 15 °, makes like this mud of sending into can certainly be advanced into warehouse of sludge inside.Watch-keeping cubicle 106 is provided with the PLC system, by cable connect that grab bucket row hangs 102, the blower fan 104 of bleeding, opening for feed 107 and louver(-vre) 108, can control the switching of opening for feed, control dusty gas to the speed of mummification chamber 203 dischargings according to the concentration of warehouse of sludge internal contamination gas by opening and closing the first blower fan 104, and synchronous opening/closing louver(-vre) 108 is to warehouse of sludge ventilation, and also operation grab bucket row hangs 102 crawl mud and is transported to sludge feeding device 101.The Double-layered transparent materials are adopted in watch-keeping cubicle 106, and the height in watch-keeping cubicle 106 is not less than the height of sludge feeding device 101, for observation.
as Fig. 3 (a), shown in Fig. 3 (b), the opening for feed 107 of the sealed sludge storage bunker of sludge drying system of the present invention (also refers between the dump in Fig. 11, in order to make the warehouse of sludge sealing, with between dump 1, the opening for feed 107 that is sealed sludge storage bunker has carried out particular design) comprise the first sect 801, be provided with the second sect 802 of blower fan 803, discharging hopper 804 and Hydraulic for lifting load bar 805, this second sect 802 is located at a side edge of sludge sump stalk 105, the first sect 801 is located at apart from the second sect 802 away from 6 to 12 meters of warehouse of sludge direction, one end of described discharging hopper 804 is near the second sect 802, the other end is near ground, the outside, Hydraulic for lifting load bar 805 is connected with the bottom of discharging hopper 804.Load the mud loading-unloading vehicle of mud when the approaching warehouse of sludge, first open at the first sect 801, and this moment second, sect 802 kept closing condition, and 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 discharging hopper; After the whole completions of discharge of mud, the mud loading-unloading vehicle rolls 801, the first sects 801, the first sect away from and again closes, and open subsequently at the second sect 802; Hydraulic for lifting load bar 805 begins action, makes discharging hopper 804 be upturned near an end at the first sect 801, and is downward-sloping near an end at the second sect 802, makes the mud in discharging hopper 804 be discharged in warehouse of sludge by 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 the second sect 802 is closed again.Also be provided with the blower fan 803 of bleeding on the second sect 802, open at the 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 warehouse of sludge, close at the first sect 801, when opened at the second sect 802, the blower fan 803 of bleeding quit work.
As shown in Figure 5, also increase dry sludge incinerating device 4 on sludge drying system of the present invention, be located at the intensification band of tunnel furnace, be between preheating zone and roasting band, form negative pressuren zone in kiln herein, make the effectively mud (in Fig. 5, arrow is the direction of hot gas) after burning and drying of heat in kiln.this dry sludge incinerating device 4 comprises the helical feed formula feeding machine 402 of being located at tunnel furnace 201 tops, the feed end of this helical feed formula feeding machine 402 is provided with funnel 403, this funnel is connected by the mummification chamber 203 of conveying belt and drying equipment, mud enters in funnel 403 after the mummification through mummification chamber 203 by conveying belt, the discharge end of helical feed formula feeding machine 402 and tunnel furnace 201 heat up with on pinkeye 408 be connected, the output terminal of described helical feed formula feeding machine 402 is connected by control valve 407 with the pinkeye of tunnel furnace 201, the control pinkeye is closed, prevent calorific loss, can effectively control dewatered sludge and enter the speed that tunnel furnace 201 burns, reach better effect.
as shown in Figure 6, also increase the emission-control equipment 5 in a kind of sludge drying on sludge drying system of the present invention, this emission-control equipment 5 comprises inlet pipe 301, the second blower fan 303, escape pipe 302, the inlet mouth of described inlet pipe 301 is communicated with mummification chamber 203, the air outlet of inlet pipe 301 is communicated with the inlet mouth of escape pipe 302 by the second blower fan 303, the air outlet of this escape pipe 302 is communicated with the air inlet port 208 on tunnel furnace 201 insulation belts, sensor 209 perception indoor exhaust airs when mummification chamber 203 still contain toxic gas, by adjusting the pipeline flow-direction air lock of the second blower fan 303, waste gas is passed into air inlet port 208 carry out burning disposal in tunnel furnace 201.
Mud drying process carries out in mummification chamber 203.The obnoxious flavour that mud produces in drying process is released in mummification chamber 203.Utilize the second blower fan 303, the obnoxious flavour in mummification chamber 203 is pumped in inlet pipe 301.The obnoxious flavour escape pipe 302 of flowing through finally enters in tunnel furnace 201.In tunnel furnace 201, toxic gas is by high-temp combustion, thereby eliminated toxic gas, avoids directly the toxic gas that produces in mud drying process being discharged to the external world contaminate environment.Emission-control equipment in sludge drying can also arrange valve 304, and valve 304 is arranged in inlet pipe 301.According to the situation of sludge drying, can utilize valve 304 to regulate at any time the flow of the waste gas that flows out from mummification chamber 203.
As shown in Figure 7, also increase the another kind of waste gas of dewatered sludge generation and the device of waste water processed on sludge drying system of the present invention, 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, one end of the outlet connecting conveying pipe 507 of mummification chamber 203, 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 passes in treating pond 504 by main ventpipe 508, connect a plurality of ventpipes 509 on main ventpipe 508, number is determined as required, as 4-10.On each ventpipe 509, ventilating pit 510 is set, when the sensor 209 perception indoor gas of mummification chamber 203 meet emission standard, the indoor gas of mummification chamber 203 is dispersed in purify waste water (as liming, being used for absorbing waste gas) in treating pond 504 by ventilating pit 510 carries out deodorization and disinfection.In addition, an end of the outlet of mummification chamber 203 and transfer lime 507 is connected by gate 505; Chimney 503 also is set, and this chimney 503 communicates with treating pond 504 by vapor pipe 511, and this vapor pipe is provided with lock 506.
As shown in Figure 8, between the flue 205 of sludge drying system of the present invention and the cooling zone of tunnel furnace 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 furnace 201 of waste heat inlet pipe 601, utilize the air outlet of waste heat inlet pipe 601 to be communicated with by four fan device 602 inlet mouth that utilizes waste heat escape pipe 603, this utilizes the air outlet of waste heat escape pipe 603 to be communicated with flue 205.Residual heat using device 6 also comprises frequency transformer 604, and described frequency transformer 604 is connected with blower fan 602.According to the situation of sludge drying, can utilize frequency transformer 604 to regulate at any time the running speed of four fan device 602, and then regulate the waste heat amount of input mummification chamber 203.
Because being the cooling zone from tunnel furnace 201, the adobe of making transports, so, utilize the inlet mouth of waste heat inlet pipe 601 to be communicated with the cooling zone of tunnel furnace 201.Utilize the waste heat of tunnel furnace 201 due to needs, so do not need to add the device of the cooling residual heats such as blower fan at the cooling zone of tunnel furnace 201.Like this, the cooling zone of tunnel furnace 201 has just omitted refrigerating unit, has simplified the structure of tunnel furnace 201.Utilize four fan device 602, the waste heat of tunnel furnace 201 is entered from the cooling zone of tunnel furnace 201 utilize waste heat inlet pipe 601, then by utilizing waste heat escape pipe 603, finally enter mummification chamber 203.In mummification chamber 203, its heat dewatered sludge of Decay heat removal.Adopt this device, the waste heat of tunnel furnace 201 is delivered directly to dewatered sludge in mummification chamber 203.This had both reached the purpose of dewatered sludge, took full advantage of again existing thermal source, was conducive to economize on resources.
Above-mentioned tunnel furnace 201 is common practise of those skilled in the art, from opening for feed, enters successively heat up band, roasting band, insulation belt, cooling zone, arrives at last discharge port and finishes.Waste gas is sent into burning from the insulation belt of tunnel furnace 201.
Claims (9)
1. sludge drying system, it is characterized in that comprising sealed sludge storage bunker, drying equipment, mud in sealed sludge storage bunker is joined drying equipment for dewatered sludge by feeding style, wherein sealed sludge storage bunker comprises sludge feeding device (101), the grab bucket row hangs (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), described the first grab bucket row hanger rail road (103) is parallel with the second grab bucket row hanger rail road (109) to be located on (105) two relative sidewalls of sludge sump stalk, the height of position is identical, respectively with the first grab bucket row hanger rail road (103), two ends that the grab bucket row hangs (102) is slidably connected with the second grab bucket row hanger rail road (109), opening for feed (107) is located on a sidewall of sludge sump stalk (105), the outside perpendicular to sludge sump stalk (105) sidewall of the first grab bucket row hanger rail road (103) and the second grab bucket row hanger rail road (109) direction be provided with one isolate between (110), this sidewall is also as the sidewall of (110) between described isolation, between isolation, (110) are provided with watch-keeping cubicle (106) and sludge feeding device (101), wherein sludge feeding device (101) is located at the intersection of sidewall between sludge sump stalk (105) sidewall and isolation, watch-keeping cubicle (106) connects the grab bucket row by cable and hangs (102) and opening for feed (107), the grab bucket row hangs (102) and picks up the hopper that the interior mud of sealed sludge storage bunker is delivered to sludge feeding device (101), this sludge feeding device (101) is delivered to mud the mummification chamber (203) of drying equipment,
described drying equipment for dewatered sludge comprises roof (2031), body of wall (2032), material table (210) and mud paver (207), this roof (2031), the mummification chamber (203) that body of wall (2032) and ground form, and sensor (209) is set in mummification chamber (203), described material table (210) is arranged in mummification chamber (203), be provided with flue (205) in the inside of material table (210), the pipeline of this flue (205) passes mummification chamber (203), flue (205) communicates with the cooling zone of tunnel furnace (201), be provided with mud paver (207) in the top of material table (210), sludge feeding device (101) is transported to mud in mud paver (207) aggregate bin, this mud paver (207) paves mud, turn over after throwing and by waste heat and roof (2031) absorption sun power from flue (205), mud is heated dehumidifying and mummification, the mud of mummification is transported between the outer siccative storage in mummification chamber (203) (2) by siccative collection device (3).
2. sludge drying system according to claim 1, it is characterized in that described sealed sludge storage bunker also comprises the first blower fan (104) and louver(-vre) (108), described the 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 a close sidewall of sludge feeding device (101), the height of this first blower fan (104) is higher than the first grab bucket row hanger rail road (103), louver(-vre) (108) is located on sludge sump stalk (105) another sidewall relative with the first blower fan (104), the first blower fan (104) is connected 108 with louver(-vre)) also connect watch-keeping cubicle (106) by cable.
3. sludge drying system according to claim 1, the opening for feed (107) that it is characterized in that described sealed sludge storage bunker comprises the first sect (801), be provided with second sect (802) of the blower fan of bleeding (803), discharging hopper (804) and Hydraulic for lifting load bar (805), this second sect (802) is located at a side edge of sludge sump stalk (105), the first sect (801) is located at apart from the second sect (802) 6 to 12 meters away from the warehouse of sludge direction, one end of described discharging hopper (804) is near the second sect (802), the other end is near ground, the outside, Hydraulic for lifting load bar (805) is connected with the bottom of discharging hopper (804).
4. sludge drying system according to claim 1, it is characterized in that also increasing dry sludge incinerating device (4) on sludge drying system, this dry sludge incinerating device (4) comprises the helical feed formula feeding machine (402) of being located at tunnel furnace (201) top, the feed end of this helical feed formula feeding machine (402) is provided with funnel (403), this funnel is connected with the mummification chamber (203) of drying equipment by conveying belt, the discharge end of helical feed formula feeding machine (402) and tunnel furnace (201) heat up with on pinkeye (408) be connected, the pinkeye of the output terminal of described helical feed formula feeding machine (402) and tunnel furnace (201) is connected by control valve (407).
5. sludge drying system according to claim 1, it is characterized in that also increasing the emission-control equipment (5) in sludge drying on sludge drying system, this emission-control equipment (5) comprises inlet pipe (301), the second blower fan (303), escape pipe (302), the inlet mouth of described inlet pipe (301) is communicated with mummification chamber (203), the air outlet of inlet pipe (301) is communicated with the inlet mouth of escape pipe (302) by the second blower fan (303), the air outlet of this escape pipe (302) is communicated with the air inlet port (208) on tunnel furnace (201) insulation belt, sensor (209) perception indoor exhaust air when mummification chamber (203) still contains toxic gas, by adjusting the pipeline flow-direction air lock of the second blower fan (303), waste gas is passed into air inlet port (208) carry out burning disposal in tunnel furnace (201).
6. sludge drying system according to claim 1, it is characterized in that also increasing the waste gas of processing dewatered sludge generation and the device of waste water on sludge drying system, 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), one end of the outlet connecting conveying pipe (507) of mummification chamber (203), 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) passes in treating pond (504) by main ventpipe (508), at upper a plurality of the ventpipes (509) that connect of main ventpipe (508), on a ventpipe (509), ventilating pit (510) is set, when sensor (209) the perception indoor gas of mummification chamber (203) meets emission standard, the indoor gas of mummification chamber (203) is dispersed in purifying waste water in treating pond (504) by ventilating pit (510) carries out deodorization and disinfection.
7. sludge drying system according to claim 6, is characterized in that the outlet of mummification chamber (203) and an end of transfer lime (507) are connected by gate (505); Chimney (503) also is set, and this chimney (503) communicates with treating pond (504) by vapor pipe (511), and this vapor pipe is provided with lock (506).
8. sludge drying system according to claim 1, it is characterized in that between the cooling zone of flue (205) and tunnel furnace (201), residual heat using device (6) being set, this residual heat using device (6) comprises utilizes waste heat inlet pipe (601), four fan device (602), utilize waste heat escape pipe (603), utilize the cooling zone of the inlet mouth connection tunnel furnace (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) by four fan device (602), this utilizes the air outlet of waste heat escape pipe (603) to be communicated with flue (205).
9. sludge drying system according to claim 8, is characterized in that described residual heat using device (6) also comprises frequency transformer (604), and described frequency transformer (604) is connected with four fan device (602).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101285565A CN102531317B (en) | 2011-05-16 | 2011-05-16 | Sludge drying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101285565A CN102531317B (en) | 2011-05-16 | 2011-05-16 | Sludge drying system |
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| CN102531317A CN102531317A (en) | 2012-07-04 |
| CN102531317B true CN102531317B (en) | 2013-06-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105073655A (en) * | 2013-02-08 | 2015-11-18 | （侏）赛克有限公司 | Apparatus and method for treating sludge |
| CN103253845B (en) * | 2013-05-03 | 2014-02-12 | 湖州宜可欧环保科技有限公司 | Different poly energy sludge drying system |
| CN107056005A (en) * | 2016-12-30 | 2017-08-18 | 武汉芳笛环保股份有限公司 | A kind of efficient low-consume mud drying device |
| CN108427363A (en) * | 2017-11-24 | 2018-08-21 | 江苏绿川环保科技有限公司 | A kind of sludge software granulation drying equipment control system |
| CN113562954B (en) * | 2021-08-09 | 2023-05-23 | 深圳包清天环保有限公司 | Sludge dewatering and drying system for recycling waste gas |
| CN115259588A (en) * | 2022-06-20 | 2022-11-01 | 上海市政工程设计研究总院（集团）有限公司 | A multi-functional grab bucket for doing mud snatchs |
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| CN2054366U (en) * | 1989-05-26 | 1990-03-14 | 云南工学院 | Treating tower for sludge |
| CN1686878A (en) * | 2005-04-04 | 2005-10-26 | 浙江大学 | Anhydration system for sludge by using remaining heat of flue gas from steam power plant |
| DE102008002812A1 (en) * | 2008-03-26 | 2009-10-01 | Bilfinger Berger Umwelttechnik Gmbh | Process for the treatment of domestic waste water generated in households |
| CN201442896U (en) * | 2009-05-26 | 2010-04-28 | 刘玉刚 | Automatic sludge drying control device |
| CN202214277U (en) * | 2011-05-16 | 2012-05-09 | 南京鑫翔新型建筑材料有限责任公司 | Sludge drying system |
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|---|---|---|---|---|
| CN2054366U (en) * | 1989-05-26 | 1990-03-14 | 云南工学院 | Treating tower for sludge |
| CN1686878A (en) * | 2005-04-04 | 2005-10-26 | 浙江大学 | Anhydration system for sludge by using remaining heat of flue gas from steam power plant |
| DE102008002812A1 (en) * | 2008-03-26 | 2009-10-01 | Bilfinger Berger Umwelttechnik Gmbh | Process for the treatment of domestic waste water generated in households |
| CN201442896U (en) * | 2009-05-26 | 2010-04-28 | 刘玉刚 | Automatic sludge drying control device |
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