Dyeing is the conventional column industry of China, also be one of industry that disposal of pollutants is larger, due to features such as dyeing wastewater through organic matter concentration is high, colourity is high, complicated components, so the method that dyeing waste water often adopts physico-chemical processes to combine with biological process is processed.By product as water treatment, printing and dyeing sludge is owing to containing fuel, slurry, auxiliary agent etc., composition is very complicated, wherein the structure of fuel has the heavy metal elements such as nitro and aminocompound and copper, chromium, zinc, arsenic, there is larger bio-toxicity, very large to the pollution of environment, belong to Guangdong Province's refuse (HY13) of keeping under strict control.Along with dyeing waste water quantity discharged and sludge quantity constantly increase, country and local environment administrative authority constantly strengthen the supervision of industrial sludge on the one hand, printing and dyeing enterprise is difficult to again bear huge sludge treatment disposal costs on the other hand, and sludge treatment is disposed the bottleneck that assembly becomes dyeing Sustainable development.Therefore, how dyeing waste water sludge decrement is also finally realized to recycling, the development of China's dyeing is significant.
The sewage treatment industry of China is just to grow up the eighties in last century, starts late, and the disposal of mud is often lagged behind to the processing of sewage.According to pertinent data, show, at present the most cities of China have all been equipped with sewage treatment facility, but to the sludge treatment that accounts for sewage total amount 1% so far in space state, " secondary pollution " phenomenon is serious.Even the processing of municipal sludge is like this, and as the printing and dyeing sludge of industrial waste, it is processed to dispose and will be subject to more multifactorial impact.
In recent years, along with the development of market mechanism and the aggravation of competition, China's dyeing development is quick, and major part be take medium and small sized enterprises as main.In order to reduce investment outlay, as far as possible compressing environmental investment, the mud of most of printing and dyeing enterprise is mainly by decrement treatment (concentrated, dehydration etc.), stabilizing treatment (digestion etc.), then concentrates to throw aside waste pit.But due to the limitation of design philosophy, still there is the problems such as rear moisture percentage in sewage sludge is too high, annexation too much, it is huge to consume energy, running cost is high of processing.Along with China's rapid development of economy, there is critical shortage in land resources, and the soil that can be used in traditional sludge treatment process is fewer and feweri; Be subject to the restriction of the factors such as existing sludge treatment device technology, cost, usefulness simultaneously, the actual state of the means of China's sludge treatment and usefulness and China's fast increasing economy has formed great contrast, and being manipulated so for of mud directly affect China's Sustainable development, build a Harmonious Society and the thorny problem of novelty country.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of not only simple in structure, easy to maintenance, stable, dehydration and drying is effective, and level of automation is high, and the lower sun power sludge drying combined system of investment running cost.
The utility model is to adopt following technical solution to realize above-mentioned purpose: sun power sludge drying combined system comprises mud tank, crusher, supply air system, dry handling equipment, electrical control system, hot air circulation pipeline system, lagging facility, security device, the full-automatic filter press equipment and the totally-enclosed solar heat pump desiccant dehumidification equipment that also comprise combining and configuring, described solar heat pump desiccant dehumidification equipment is mainly by heat pump working cycle, baking oven and solar energy collector form, the multilayer conveying belt distributing from top to bottom that sludge-drying is used is set in described baking oven, reduce mud granularity to pulverous multi-stage crushing device and high-voltage electric field that can rapid drying mud.
As the improvement of such scheme, four layers of conveying belt are set in described baking oven from top to bottom, adjacent conveying belt direction of motion is contrary, and described multi-stage crushing device is divided into every layer of conveying belt terminal.
Further, described conveying belt is through described high-voltage electric field.
As the improvement of such scheme, described heat pump working cycle comprises Analysis of Heat Pump Drying System and heat pump heat distribution system, and described heat pump heat distribution system comprises compressor, condenser, expansion valve, vaporizer.
As the improvement of such scheme, described vaporizer is also provided with by-pass line.
As the improvement of such scheme, described heat pump heat distribution system also comprises auxiliary condenser, and the two ends of described auxiliary condenser are communicated with respectively described compressor outlet and described condenser inlet.
As the improvement of such scheme, described heat pump heat distribution system also comprises gas-liquid separator, and the two ends of described gas-liquid separator are communicated with respectively described evaporator outlet and described suction port of compressor.
Further, described vaporizer below is provided with drip tray.
Implement the utility model, there is following beneficial effect:
1, sun power sludge drying system described in the utility model adopts the two barrier film plate-and-frame filter press of high pressure and totally-enclosed sun power drying sludge barn, realized full-automatic master control system, can process water ratio below 45% by the disposable industrial printing and dyeing sludge by water ratio 98%, energy consumption is very low, also avoid transporting outward in the process of cement mill and leak, behind cement mill, directly can mix in fire coal and burn, finally accomplish resource utilization and innoxious.
2, from the sludge treatment of water ratio 98% to water ratio lower than 45% process, whole system, in closed state, is the production environment of greatly having improved sludge treatment, on the impact of environment all round in minimum.
3, sludge multi-stage shredding unit is set in solar heat pump baking oven.Mud is owing to becoming bulk and bulk, and in solar heat pump baking oven, moisture is difficult to volatilization, and dehydration difficulty is large.By a large amount of experiments, in the transmitting procedure of mud, on Multi-layer belt type transport unit, configure sludge multi-stage shredding unit, expand the contact area of mud, accelerate the speed of mummification, make the mud after mummification powdered.
4, use solar heat pump dewatered sludge, adopt sun power and heat pump techniques, these are all energy-conserving products, have realized energy-efficient object.Greatly reduce the cost of sludge drying, thereby saved spending.Equipment can directly dock with mudpan in sewage work, the mud of water ratio 93% ~ 99% is processed after water content is below 45% and transported outward in sewage work, greatly reduce the volume and weight of mud, thereby significantly reduce the expense of outward transport and stop to drop.
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of sun power sludge drying of the utility model combined system, mainly full-automatic filter press equipment and the totally-enclosed solar heat pump desiccant dehumidification equipment by combining and configuring forms, and specifically comprises mud tank, efficient two barrier film plate-and-frame filter press, crusher, supply air system, solar energy collector 3, high-voltage electric field 4, dries handling equipment, multi-stage crushing device 14, electrical control system, hot air circulation pipeline system, heat pump heating device, lagging facility, security device etc.Mud tank is Extraction and determination mud from sludge sump, is transported to efficient two barrier film plate-and-frame filter press, after press filtration by crusher in crushing, after predrying or be delivered directly to solar heat pump drying plant and be dried, entrucking after processing.From solar heat pump baking oven 2 moisture percentage in sewage sludge out, lower than 45%, be Powdered, the mud after entrucking is tapered through natural packing.1 ton of this baking oven lignin-sludge per hour, power consumption 60-70 degree.
As shown in Figure 2, the utility model Analysis of Heat Pump Drying System example structure schematic diagram, solar heat pump desiccant dehumidification equipment comprises heat pump working cycle 1, baking oven 2 and solar energy collector 3, wherein said baking oven 2 is interior arranges the multilayer conveying belt distributing that sludge-drying uses from top to bottom, reduce mud granularity to pulverous multi-stage crushing device 14 and high-voltage electric field 4 that can rapid drying mud, baking oven 2 surfaces arrange solar energy collector 3, collect heat and enter in baking oven 2.The temperature and humidity of housing automatic control and adjustment baking oven 2, temperature is controlled between 50-85 degree, and humidity is controlled at below 40 ℃, and mud is heated and dehumidifier.The crux parts that absorber plate is is heat energy by solar energy converting in solar energy collector 3, it plays an important role to solar energy collector 3 performances, and the material category of absorber plate is a lot, has that copper, aluminium alloy, copper aluminium are compound, stainless steel, galvanized steel, plastic cement, rubber etc.In baking oven 2, four layers of conveying belt are set from top to bottom, the direction of motion of adjacent conveying belt is contrary, the terminal of every layer of conveying belt is provided with multi-stage crushing device 14, mud is repeatedly pulverized again baking oven 2 is interior, makes mud powdered, at the interior high-voltage electric field 4 that arranges of baking oven 2, mud is dried.In baking oven 2, be provided with blower fan 15, can make air (drying medium) constantly circulation in baking oven 2, penetrate sludge blanket from bottom to top, make mud show to increase the chance contacting with warm air, form convective heat exchange, strengthening drying effect.
Conveying belt in baking oven is through described high-voltage electric field 4, mud is dried, here high-voltage electric field is a comprehensive effect field, it has ionic fluid (electron beam, negative ion beam---electric charge is provided, also provides more unbound electron) effect, there is again the effect of electromagnetic field radiation and steady electric field simultaneously. these ionic fluids are low energy ions, with organism interaction process be the effect of three factors unifications, be energy sedimentary effect, quality deposition effect and charge-exchange effect.High electric field drying mud is mainly that ionic fluid injects, and realizes energy deposition on water molecules, charge-exchange.On the one hand ion and water molecules generation energy exchange, strengthens the energy of water molecules, promotes the disconnection of hydrogen bond in water molecules, makes molecular grouping become single water molecules, reduces the volume of single water group, reduces resistance while deviating from for water molecules; Ion and water molecules generation charge-exchange on the other hand, the charge number of water molecules is increased, under electric field action, the suffered electrical forces of water molecules increases, the effect of this two aspect develops the running balance of water clusters in seed to the right, and under the effect of electrical forces, the free water of mud inside moves to surface, water molecules in mud epidermis will directly be pulled in air and go, thereby accelerate the dry of mud.By finding out above, water molecules deviates from not occur the liquid conversion to gaseous state from mud inside, with regard to energy aspect, has economized the energy of vaporization, thereby has saved energy.
Drying sludge adopts heat pump working cycle 1, and heat pump working cycle 1 comprises Analysis of Heat Pump Drying System and heat pump heat distribution system.Heat pump heat distribution system is by compressor 7, condenser 8, expansion valve 6, vaporizer 10 forms, utilized absorption refrigeration agent (refrigerant) liquid in equipment, by vaporizer 10 boiling vaporizations, from air or other surrounding medium, gather heat energy, by compressor 7, be compressed to high-temperature high-pressure state again, by heat exchange in condenser 8 by thermal energy transfer to hot blast, condensation of refrigerant is liquid simultaneously, after expansion valve 6 step-downs, again enter vaporizer 10, go round and begin again, constantly by environment's heat " carrying " to hot blast, owing to being defeated by a energy of compressor 7, often can carry 2～6 parts of heat energy, so more energy-efficient.
Analysis of Heat Pump Drying System embodiment bis-of the present utility model, as shown in Figure 3.Analysis of Heat Pump Drying System has inside and outside two working cycle, the i.e. circulation of refrigeration agent in heat pump and the dry recycle of drying medium.Refrigeration agent absorbs after the heat in the waste gas of being discharged by dehumidification system in vaporizer 10, and making liquid evaporation is steam; After compressor 7 compressions, deliver in condenser 8, under high pressure, heat pump refrigerant condensation liquefaction, the high temperature heat of condensation of emitting goes heating to carry out the low temperature dry air of the cool-down dehumidification of flash-pot 10, low temperature dry air is heated to after the temperature of requirement, enters baking oven 2 and recycles as drying medium; Heat pump refrigerant after liquefaction, in expansion valve 6 turns back to vaporizer 10 again, so moves in circles.In addition, vaporizer 10 belows are provided with drip tray 16, and the most of water vapor in waste gas is condensed in vaporizer 10, enter drip tray 16 and directly drain.
Fig. 4 is the utility model Analysis of Heat Pump Drying System embodiment tri-structural representations, and at vaporizer, 10 places arrange by-pass line 11, and portion of air can directly arrive at condenser 8 without vaporizer 10 and carry out heat exchange, and air flow can be controlled automatically by housing.The object that by-pass line 11 is set at vaporizer 10 be to make damp-heat air by vaporizer 10 can be preferably with vaporizer 10 in refrigerating duty match, bring into play fully the dehumidifying effect of vaporizer 10; Meanwhile, can also regulate the thermal load of condenser 8 and vaporizer 10, make it to mate preferably, to reduce the loss and to strengthen the heat exchange of condenser 8.
More excellent, on heat pump heat distribution system, increase auxiliary condenser 5, the two ends of auxiliary condenser 5 are communicated with respectively described compressor 7 outlet and described condenser 8 entrances, auxiliary evaporator 5 is also provided with by-pass line, and be provided with magnetic valve 12 and magnetic valve 13, can, by the switching of housing automatic control electric magnet valve 12 and magnetic valve 13, can freely select whether to enable auxiliary condenser 5.It is flexible that the advantage of this structure is to control drying temperature, and the coefficient of heat transfer of auxiliary condenser 5 is higher, do not need the interchanger of special technique.In addition, if adopt auxiliary condenser 5 heating outside airs to carry out predry to mud, can reclaim the heat of condensation that this part temperature is higher, save energy, improves system efficiency.
As shown in Figure 5, for the utility model Analysis of Heat Pump Drying System embodiment tetra-structural representations, between compressor 7 and vaporizer 10, be provided with gas-liquid separator 9, the two ends of gas-liquid separator 9 are communicated with respectively vaporizer 10 outlet and described compressor 7 entrances.Gas-liquid separator 9 is located at compressor 7 entrances; refrigerant air-liquid is separated; the effect of liquid/gas separator 9 is that the gas of refrigeration agent after vaporizer 10 and liquid are separated; refrigerant gas is sent into compressor 7 to heat up again; because the compression ratio of refrigeration agent is very little; if in liquid refrigerant inspiration compressor 7; easily damage the even power part of compressor 7 of compressor 7 valve blocks; play the effect of protection compressor 7; thereby be provided with gas-liquid separator 9 between vaporizer 10 and compressor 7; reduce the failure rate of unit, improve the efficiency of system simultaneously.
The utility model compared with prior art, has following innovative point:
1, use solar heat pump dewatered sludge, adopt sun power and heat pump techniques, these are all energy-conserving products, have realized energy-efficient object, greatly reduce the cost of sludge drying, thereby have saved spending.
2, equipment can directly dock with mudpan in sewage work, the mud of water ratio 93% ~ 99% is processed after water content is below 45% and transported outward in sewage work, greatly reduce the volume and weight of mud, thereby significantly reduce the expense of outward transport and stop to drop.
3, the cost of equipment reduces, and working service cost, without greenhouse gas emission, meets environmental requirement more.
4, equipment is realized automatic control mode, automatic data collection, and remote monitoring, operator login the various information of grasp equipment by Terminal Server Client, understand lignin-sludge total amount every day, current consumption, equipment components running condition, accident conditions; Can 24 hours continuous operations, improved operator's working conditions.
5, equipment can, according to the production capacity of each sewage work and sludge characteristics configuration parameter, reach best configuration.
6, EM equipment module is built, and considers regional disparity, according to the treatment capacity at different sludge treatment center, equipment is carried out to reasonable disposition, reaches the object of on-demand customization.In addition, modular construction makes transportation extremely convenient.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.