The hot air combined sun power sludge drying of a kind of multilayer greenhouse type canopy
Technical field
The utility model relates to technical field of sludge treatment, relates in particular to the hot air combined sun power sludge drying of a kind of multilayer greenhouse type canopy.
Background technology
According to house and town and country construction section " about the circular of construction fourth quarter in 2010 of national town sewage treatment facility and running condition ", by the end of the year 2010, China's town domestic sewage facility processing power has reached 1.25 hundred million m
3/ day, treatment rate of domestic sewage has reached 77.5%, and sludge yield is 60,000 ton per days (water ratio 80%).According to " " 12 " national town sewage is processed and the planning of regeneration Facilities Construction ", within 2015, national sewage disposal scale will reach 2.0805 hundred million m
3/ day, the mud production rate empirical value of domestic B-grade sewage treatment plant is 4.7~7.5 tons of wet mud (water ratio 80%)/ten thousand m
3sewage, with 5.0m
3wet mud (water ratio 80%)/ten thousand m
3sewage, be 10.4 ten thousand tons of wet mud/days (water ratio 80%) when the time comes by the sludge quantity of generation, produces raw sludge 3,796 ten thousand m per year
3wet mud.
China's sewage sludge harmlessness processing rate is very low, even flourishing city is only also 20~25%, become the topmost secondary pollution of municipal sewage treatment source, the wretched insufficiency grown with each passing day with the sludge treatment ability of sludge creation amount, the serious backward Sustainable development of processing power, sharp-pointed contradiction formed, a large amount of wet mud are arbitrarily transported outward, simple landfill or stacking, the phenomenon in mud besieged city that caused many cities to occur, the sludge treatment problem has become the Urban Environmental Problem that China can't avoid.
Under the dual prerequisite of and Sustainable development day by day exhausted at the energy, the anaerobic digestion techniques of mud becomes the main trend of sludge treatment gradually.But, no matter be other processing disposal technology of anaerobic sludge digestion or mud, it processes technological process of disposing individual very necessary step-sludge drying.And the solar energy desiccation treatment unit is low due to working cost, simple to operate and in the European Region widespread use.But due to system itself, the solar energy desiccation treatment unit can't keep constant processing power, and floor space is large, be unfavorable for the transformation and upgrade of existing project, be not suitable for the area of shortage of land resource.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of simple in structure, easy to operate, cost is low, it is low, stable to expend, the sludge drying degree is high, have constant sludge treatment ability, and the little hot air combined sun power sludge drying of a kind of multilayer greenhouse type canopy of floor space.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the hot air combined sun power sludge drying of a kind of multilayer greenhouse type canopy is characterized in that: comprise mummification canopy chamber main body, cloth paving system, material-transporting system and hot-air system.
Described mummification canopy chamber main body comprises at least two-layer mummification chamber, the body of wall of described mummification chamber is made by sunlight board, be provided with side window on the side body of wall of described mummification chamber, the roof of described mummification canopy chamber main body is provided with skylight, the inside of described mummification chamber is provided with the transparent drying bed of air, and the both sides of described drying bed are provided with the walking track for described cloth material spreader or described paver activity.
Described cloth paving system comprises cloth material spreader and paver, and the indoor drying bed of mummification that is positioned at top layer is provided with the cloth material spreader, and the indoor drying bed of mummification that is positioned at remainder layer is provided with paver;
Described material-transporting system comprises discharge port and belt conveyor, be positioned at a side relative with described cloth material spreader cloth bucket on the indoor drying bed of the mummification of top layer and be provided with discharge port, on the indoor drying bed of all the other mummification, a side relative with the indoor discharge port of its last layer mummification position is provided with discharge port, and the discharge port position be positioned on the indoor drying bed of lowest layer mummification is provided with described belt conveyor.
Described hot-air system comprises hot blast chamber, hot air duct, blower fan, heat exchanger and hot well tank, described hot blast chamber is arranged at the bottom of this mummification canopy, described hot blast chamber is connected with heat exchanger by hot air duct, described heat exchanger is connected with described hot well tank, is provided with described blower fan on described hot air duct.
The beneficial effects of the utility model are: 1. energy consumption cost is low, and running cost is low, easy to operate;
2. effectively utilize space, economize the land resource;
3. free from environmental pollution, safety in production, drying process does not have noxious gas emission, produces amount of dust few;
4. stable simple, the sludge drying degree is high;
5. produce particulate state natural pond slag, reduced sludge volume, be convenient to transportation, the convenience of the sludge ultimate disposal that taken on a new look;
6. sun power weakness, the unsettled shortcoming of mummification effect in single solar energy desiccation technology have been overcome;
7. Operation and Maintenance is simple, long service life.
8. use sun power and & Mud factory waste heat, meet the needs of Sustainable development.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, this mummification canopy also is provided with microcomputer monitoring and Controlling System, every layer of described mummification chamber all is provided with Temperature Humidity Sensor and/or camera, and described microcomputer monitoring and Controlling System and roll-over in described paver and/or described cloth material spreader and/or described mud and/or Temperature Humidity Sensor and/or camera and/or skylight and/or side window and/or blower fan are electrically connected to.
Adopt the beneficial effect of above-mentioned further scheme to be: can reduce human input by microcomputer monitoring and Controlling System, the accuracy-control system parameter, improve mummification efficiency, guarantees the orderly operation of security of system.
Further, be arranged in that the mummification of top layer is indoor is provided with the mud roll-over, in described mud, the bottom of roll-over is provided with valve.
Adopt the beneficial effect of above-mentioned further scheme to be: to guarantee working time that can balance and stability cloth material spreader by roll-over in mud normally to produce in order.
Further, be provided with scraper in described hot blast chamber.
Adopt the beneficial effect of above-mentioned further scheme to be: to scrape the small-particle mud of landing at the hot blast chamber by scraper, prevent from stopping up the hot blast circulation.
Further, the thermal source of described heat exchanger comes from the waste heat that & Mud produces.
Further, the thermal source of described hot well tank comes from the used heat of Biogas Generator Set generation or waste heat or the used heat that the waste heat in waste heat and/or second pond draining, waste heat flue gas and/or thermal hydrolysis technology produce.
Adopt the beneficial effect of above-mentioned further scheme to be, effective use of energy sources, energy efficient.
The accompanying drawing explanation
The structural representation that Fig. 1 is the hot air combined sun power sludge drying of the utility model multilayer greenhouse type canopy;
Fig. 2 is at the utility model mud traffic direction schematic diagram.
In accompanying drawing, the list of parts of each label representative is as follows:
1, mummification canopy main body, 2, skylight, 3, side window, 4, the mummification chamber, 5, spiral conveyer, 6, roll-over in mud, 7, valve, 8, cloth material spreader cloth bucket, 9, cloth material spreader, 10, the walking track, 11, discharge port, 12, drying bed, 13, paver, 14, belt conveyor, 15, scraper, 16, the hot blast chamber, 17, blower fan, 18, hot air duct, 19, heat exchanger, 20, the heat supply water pipe, 21, cold water return pipe, 22, water pump, 23, hot well tank, 24, Temperature Humidity Sensor.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
The apparatus structure schematic diagram that Fig. 1 is the hot air combined sun power sludge drying of the utility model multilayer greenhouse type canopy, as shown in Figure 1, this mummification canopy comprises mummification canopy chamber main body 1, cloth paving system, material-transporting system and hot-air system.Described cloth paving system comprises cloth material spreader 9 and paver 13.
Described mummification canopy chamber main body 1 comprises at least two-layer mummification chamber 4, the body of wall of described mummification chamber 4 is made by sunlight board, be provided with side window 3 on the side body of wall of described mummification chamber, the roof of described mummification canopy chamber main body 1 is provided with skylight 2, the inside of described mummification chamber 4 is provided with the transparent drying bed 12 of air, and the both sides of described drying bed 12 are provided with the walking track 10 for cloth material spreader 9 or paver 13 activities.
The indoor drying bed of mummification that is positioned at top layer is provided with cloth material spreader 9, and the indoor drying bed of mummification that is positioned at remainder layer is provided with paver 13.
Described material-transporting system comprises discharge port 11 and belt conveyor 14, be positioned at a side relative with described cloth material spreader cloth bucket 8 on the indoor drying bed 12 of the mummification of top layer and be provided with discharge port 11, be provided with discharge port 11 in top layer mummification chamber with a side relative with the indoor discharge port of its last layer mummification position on the indoor drying bed of the mummification between lowest layer mummification chamber, on the indoor drying bed of described lowest layer mummification, a side relative with the indoor discharge port of its last layer mummification position is provided with discharge port, at this discharge port place, is provided with belt conveyor 14.
Described hot-air system comprises hot blast chamber 16, hot air duct 18, blower fan 17, heat exchanger 19 and hot well tank 18, and described hot blast chamber 16 is arranged at the bottom of this mummification canopy, is positioned at below the drying bed of the lowest layer.Described hot blast chamber 16 is connected with heat exchanger 19 by hot air duct 18, by heat supply water pipe 20, with cold water return pipe 21, with hot well tank 23, is connected, and described heat supply water pipe is provided with water pump 22, on described hot air duct 18, is provided with blower fan 17.Be provided with scraper 15 in hot blast chamber 16, by scraper 15, scrape the small-particle mud of landing at hot blast chamber 16, prevent from stopping up the hot blast circulation.This scraper 15 can be described as again cleaning shoe, is similar to a flat board of traction, can be used for mud on ground is blown off.The thermal source of heat exchanger 19 preferably comes from the waste heat that & Mud produces.The thermal source of described hot well tank comes from waste heat that used heat that Biogas Generator Set produces or the waste heat in waste heat and/or second pond draining, waste heat flue gas and/or thermal hydrolysis technology produce or used heat etc.
This mummification canopy also is provided with microcomputer monitoring and Controlling System, every layer of described mummification chamber 4 all is provided with Temperature Humidity Sensor 24 and/or camera (not shown), and described microcomputer monitoring and Controlling System are electrically connected to by wire and roll-over 6 in paver 13 and/or cloth material spreader 9 and/or mud and/or Temperature Humidity Sensor 24 and/or camera and/or skylight 2 and/or side window 3 and/or blower fan 17.Microcomputer monitoring and Controlling System are used for controlling operation or the stationary state of paver 13 and cloth material spreader 9 and controlling the unlatching of mud roll-over 6 bottom valves 7 or close.Temperature Humidity Sensor 24 is for detection of the temperature and humidity of mummification chamber interior, and the temperature and humidity signal detected is sent to microcomputer monitoring and Controlling System.Camera is used for monitoring the situation of mummification chamber interior, and sends the monitored picture photographed to microcomputer monitoring and Controlling System.Can also control the unlatching of Temperature Humidity Sensor 24, camera skylight 2, side window 3, blower fan 17 equipment or close by microcomputer monitoring and Controlling System.Can reduce human input by microcomputer monitoring and Controlling System, the accuracy-control system parameter, improve mummification efficiency, guarantees the orderly operation of security of system.
The mummification chamber 4 that is arranged in top layer is provided with mud roll-over 6, and in described mud, the bottom of roll-over 6 is provided with valve 7.In mud, roll-over 6 is for receiving the mud transported from spiral conveyer 5, when mud is collected certain degree, cloth material spreader 9 stop at roll-over 6 in mud below, in mud, the valve 7 of the bottom of roll-over 6 is opened and mud is moved in cloth material spreader cloth bucket 8.In mud, the effect of temporary transient storage mud is played in roll-over 6, thereby the cloth time that can balance and stability cloth material spreader by roll-over 6 in this mud guarantees normally to produce in order.
During the operation of the hot air combined sun power sludge drying of the utility model multilayer greenhouse type canopy, mud is transported to mummification canopy main body 1 by spiral conveyer 5 and is arranged in the 4 mud roll-overs 6 of top layer mummification chamber.When sludge accumulation, after applicable quantity, in mud, roll-over 6 storehouse bottom valves 7 are opened, and mud falls in cloth material spreader cloth bucket 8.In cloth material spreader cloth bucket 8, mud is shed on sludge drying bed 12 by cloth material spreader 9.Cloth material spreader 9 is on the walking track 10 of sludge drying bed 12 during walking movement, throw the effect of cutter by the cloth material spreader with certain angle of inclination, mud is diminished by bulk, and the longitudinal displacement with cloth turnover throwing machine traffic direction had both occurred in mud, the transversal displacement that also is parallel to cloth material spreader itself, the slowly side to right opposite discharge port 11 places by the sidesway at cloth material spreader cloth bucket 8 places.
Mud falls to one deck mummification chamber from top layer mummification chamber discharge port 11, then the paver 13 in this mummification chamber is paved mud, throw the effect of cutter by the paver with certain angle of inclination, sludge bulking further diminishes, and the longitudinal displacement with the turnover throwing machine traffic direction had both occurred, the transversal displacement that also is parallel to paver itself, slowly shift to discharge port 11 positions.
Until, after mud falls to the most the lower layer of mummification chamber, paver 13 is paved mud, mud granule further diminishes, the displacement of mud granule generation vertical and horizontal.The mud that transversal displacement occurs moves on on the belt conveyor 14 of mummification chamber one side gradually, is transferred out outside the mummification canopy.Fig. 2 is mud traffic direction schematic diagram under the utility model cloth material spreader 9 or paver 13 effects, mud longitudinal displacement direction is identical with cloth material spreader or paver direction of travel, mud transversal displacement direction is parallel with the fuselage direction of cloth material spreader or turnover throwing machine, the angle of mud actual motion direction and transversal displacement direction is by the angle of inclination decision of throwing cutter, and the transversal displacement speed of mud is determined by the length of throwing cutter.In mud drying process, on the one hand, the sun power direct radiation is to Sludge Surface, and heating mud, make its internal moisture be able to air towards periphery and accelerate evaporation, thereby increased the atmospheric moisture of Sludge Surface, reaches capacity even.On the other hand, the hot blast come by heat exchanger 19 heat exchange enters in hot air chamber 16 by blower fan 17 effects, hot blast in hot air chamber 16 passes through drying bed, with Sludge Surface, strengthening contacts, heat is inputted to mud, take away the wet air of Sludge Surface, improved the water-retaining capacity of Sludge Surface air, thereby, impel further air evaporation towards periphery of mud internal moisture.Mummification canopy main body 1 is made by sunlight board except supporting structure, can keep the mummification temperature of shed between 30~50 ℃, guarantees the speed of sludge water content evaporation.In addition, when the water ratio in mud reduces to nearly 40%~60%, in mud, organism can be fermented under the condition of aerobic, thereby causes the further rising of mud internal temperature, plays the mummification effect of accelerating, and also makes mud obtain stabilization treatment simultaneously.
When Temperature Humidity Sensor 24 detects the mummification indoor humidity and reaches a threshold value, open side window 3 and skylight 2 by microcomputer, get rid of in time wet air.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.