CN206157011U - City domestic sewage excess sludge mummification device - Google Patents

Abstract

The utility model discloses a city domestic sewage excess sludge mummification device, including base, sludge drying room, steam inlet, comdenstion water outer discharge pipe, turbine type agitator, steam entry, condensation water outlet pipe, drain pipe, discharge gate, apron, feed inlet, steam inlet, microwave generator, condensate water drainage tube, blast pipe, condenser, outlet pipe, activated carbon adsorption column. Compared with the prior art, the utility model discloses utilize microwave radiation to destroy capillary bound water and inside bound water among the domestic sewage excess sludge of city, practice thrift the required energy of sludge drying greatly, in addition, the utility model has the advantages of the stink reliably, is easily managed and safeguards, has in simple structure, operation.

Description

A kind of city domestic sewage excess sludge desiccation apparatus

Technical field

The utility model is related to a kind of sludge reduction device, belongs to field of solid waste treatment, more particularly to a kind of city City's sanitary sewage excess sludge desiccation apparatus.

Background technology

With expanding economy and the improvement of people's living standards, Small Urban and rural domestic sewage treatment factory are progressively stood Item is built, and surface water quality is preferably protected, but, while it should also be recognized that, due to substantial amounts of sewage treatment plants Construction, the yield of byproduct-excess sludge processed produced by sewage as municipal sewage plant also presents blowout Formula develops, and according to statistics, the sludge quantity that current China increases because of the construction of Small Town Wastewater treatment plant is about more than 4,000 ten thousand tons, these Contain substantial amounts of organic matter, animals and plants in sludge（Microorganism）Residuum, cellulosic, heavy metal etc., if can not properly be located Reason, will certainly cause serious harm to ecological environment.The process of solid waste at present and disposal are with innoxious, minimizing, money Source turns to basic river harnessing ideas, and the method for disposal of typical city domestic sewage excess sludge mainly has resource（Such as make Standby building materials, roadbed material etc.）, energy（Such as oil-producing, aerogenesis, burning electricity generation, extraction protein）, Land_use change（Such as heap Fertilizer, soil improvement etc.）, landfill etc..But these basic premises for processing method of disposal are exactly the moisture content for reducing sludge, Dehydration and mummification are the typical methods for reducing city domestic sewage excess sludge moisture content.The mummification of sludge is using thermophysical Principle, excludes to the moisture in sludge, and so as to reduce the purpose of moisture percentage in sewage sludge, energy is in sludge drying technique Net disbursement form, and how much catabiotic in drying process is to evaluate one of good and bad key criterion of drying technique.Often Sludge drying technique has sludge drying bed, solar energy desiccation and external heat source mummification, sludge drying bed and solar energy desiccation Technology carries out mummification to sludge by gravity-flow ventilation, Action of Gravity Field and solar energy, and the major defect of this kind of technology is drying time Long, efficiency is low, is easily affected by weather and weather, easily causes air pollution.External heat source drying technique then needs to provide extra Thermal source, accelerate the evaporation of moisture in sludge, realize the mummification of sludge, this kind of technology needs to be additionally provided thermal source, when sludge it is dry Changing can preferentially use when having industrial exhaust heat near field, in the case where industrial exhaust heat is lacked, can be by optimizing energy resource supply Mode, improvement drying process improve mummification effect, reduce energy resource consumption.Moisture in excess sludge is primarily present form top layer Absorption water, Interstitial Water, capillary combine water and internal junction Heshui, and top layer absorption water and Interstitial Water are easier to removing, and capillary combines water With the more difficult removal of internal junction Heshui, capillary can be reduced by technical measures and combine water and internal junction Heshui proportion, be reduced Dehydration and drying difficulty, energy saving improves dehydrating effect.

Utility model content

The purpose of this utility model be that in order to solve existing city domestic sewage excess sludge desiccation apparatus high energy consumption, It is also easy to produce the low shortcoming of foul smell, dewatering efficiency and a kind of city domestic sewage excess sludge desiccation apparatus is provided.

The utility model is achieved through the following technical solutions above-mentioned purpose：A kind of city domestic sewage excess sludge mummification Comb, turbine agitator, hot gas inlet, condensed water go out outside device, including base, sludge drying chamber, steam inlet, condensed water Water pipe, drainpipe, discharging opening, cover plate, charging aperture, steam inlet, microwave generator, condensate draining pipe, blast pipe, condensation Device, outlet pipe, active carbon adsorption column.

Described base is saddle bearing, for supporting and fixing sludge drying chamber；Described sludge drying chamber is shell-type Structure, is cavity between inside and outside wall, and cavity is connected with steam inlet and the outer comb of condensed water；Described sludge drying chamber interior edge Sludge drying chamber is axially in parallel to be provided with two opposite turbine agitators for rotating, the rotary shaft of described turbine agitator and Blade is cavity structure, and both cavitys are connected.Described turbine agitator cavity is provided with hot gas inlet and cold Solidifying water outlet pipe, the rotary shaft of described turbine agitator by motor-driven, be fixed on described sludge and do by mechanical seal Change on room.

Described sludge drying chamber bottom outer wall face is provided with drainpipe, and both are connected using flange seal；Described dirt Mud mummification room bottom is provided with discharging opening, and the sludge after mummification is transported outward in good time Jing after discharging opening collection；Described cover plate is shell-type knot , there is cavity between inside and outside wall in structure；Described cover plate top flange is connected with described charging aperture, and described charging aperture is provided with Described steam inlet, described cover panel end bottom is provided with condensate draining pipe；Described cover plate inwall is along sludge drying chamber Axially uniformly it is laid with microwave generator；Described cover plate top flange is connected with described blast pipe, on described blast pipe Condenser and active carbon adsorption column are sequentially installed with, described condenser bottom is provided with outlet pipe.

Described cover plate and the outside wall surface of described sludge drying chamber is coated with heat-insulation layer；Described cover plate and described Sludge drying chamber is with the connection of mechanical seal hinged closure.

The beneficial effects of the utility model are：

The utility model is a kind of city domestic sewage excess sludge desiccation apparatus, and compared with prior art, this practicality is new Type destroys the capillary pipe structure of excess sludge and the cell wall structure of microorganism using the microwave produced by microwave generator, The capillary that will be difficult to evaporate is discharged with reference to water and internal junction Heshui, reduces energy ezpenditure, in addition, whole system is close Seal structure, can effectively reduce in mud drying process stink and toxic and harmful to the release in environment, meanwhile, whole system System simple structure, operational management is very convenient.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 be Fig. 1 A-A to cross-sectional view.

In Fig. 1 ~ 2：The outer comb of 1- bases, 2- sludge drying chambers, 20- steam inlets, 21- condensed waters, the stirring of 22- turbine types Device, 221- hot gas inlets, 222- condensed water outlet pipes, 23- drainpipes, 24- discharging openings, 3- cover plates, 31- charging apertures, 311- steam Vapour entrance, 32- microwave generators, 33- condensate draining pipes, 4- blast pipes, 41- condensers, 411- outlet pipes, 42- activated carbons Adsorption column.

Specific embodiment

Below in conjunction with the accompanying drawings 1 ~ 2 the utility model is described in further detail：

As shown in Figure 1 and 2：The utility model includes the outer comb of base 1, sludge drying chamber 2, steam inlet 20, condensed water 21st, turbine agitator 22, hot gas inlet 221, condensed water outlet pipe 222, drainpipe 23, discharging opening 24, cover plate 3, charging aperture 31st, steam inlet 311, microwave generator 32, condensate draining pipe 33, blast pipe 4, condenser 41, outlet pipe 411, activated carbon Adsorption column 42.

As shown in Figure 1 and 2：Sludge Jing charging apertures 31 after sludge from wastewater treatment plant evaporation plant preliminary hydro-extraction are entered Carry out mummification in sludge drying chamber 2, high-temperature steam by steam inlet 20 enter the cavity medium and high temperature steam of sludge drying chamber 2 by Hot gas inlet 221 is entered and the quill shaft and hollow blade medium and high temperature steam of turbine agitator 22 are entered by steam inlet 311 In the cavity of cover plate 3, on the one hand, sludge is sufficiently stirred for by turbine agitator 22 in sludge drying chamber 2, is broken up and dry and wet material Mixing, the moisture in sludge evaporates in the presence of steam heat and irradiation heat becomes vapor, is on the other hand occurred by microwave The radiation of microwave produced by device 32, it is difficult to which the capillary of removal becomes top layer absorption water with reference to water and the release of internal junction Heshui, this A little moisture are also quickly converted to vapor in the presence of steam heat, so as to the deep dehydration for realizing sludge and quick mummification, do Sludge after change is discharged by discharging opening 24, is transported outward in good time after collection；After the vapor for being evaporated is discharged by the blast pipe 4 at top, Aqueous water is condensed into into condenser 41, and sewage disposal link is back to by outlet pipe 411 and processed, the air-flow Jing of outer row Cross after condenser to enter in active carbon adsorption column 42 and remove stink and toxic and harmful, big compression ring is discharged into after purification Border；Being passed through the high-temperature steam in sludge drying chamber 2, turbine agitator 22 and the cavity of cover plate 3 can part after heat exchange is carried out Aqueous water is condensed into, respectively water is back to by the outer comb 21 of condensed water, condensed water outlet pipe 222, condensate draining pipe 33 in good time Processing links are processed.

Claims (3)

1. a kind of city domestic sewage excess sludge desiccation apparatus, it is characterised in that：Including：Base（1）, sludge drying chamber（2）、 Cover plate（3）, blast pipe（4）, steam inlet（20）, the outer comb of condensed water（21）, turbine agitator（22）, hot gas inlet （221）, condensed water outlet pipe（222）, drainpipe（23）, discharging opening（24）, charging aperture（31）, steam inlet（311）, microwave send out Raw device（32）, condensate draining pipe（33）, condenser（41）, outlet pipe（411）, active carbon adsorption column（42）；Wherein, base （1）For saddle bearing, sludge drying chamber（2）It is cavity, cavity and steam inlet between inside and outside wall for shell type structure（20）With it is cold The outer comb of solidifying water（21）Connection, along sludge drying chamber（2）It is axially in parallel to be provided with two turbine agitators（22）, turbine type stirring Device（22）Cavity is provided with hot gas inlet（221）With condensed water outlet pipe（222）, turbine agitator（22）Rotation shaft mechanical It is sealingly fastened in described sludge drying chamber（2）On, sludge drying chamber（2）Bottom outer wall face is provided with drainpipe（23）, both Connected using flange seal, described sludge drying chamber（2）Bottom is provided with discharging opening（24）, cover plate（3）It is inside and outside for shell type structure There is cavity, cover plate between wall（3）Top flange is connected with described charging aperture（31）, charging aperture（31）It is provided with steam inlet （311）, cover plate（3）End bottom is provided with condensate draining pipe（33）, cover plate（3）Inwall is along sludge drying chamber（2）It is axially uniform It is laid with microwave generator（32）, cover plate（3）Top flange is connected with blast pipe（4）, blast pipe（4）On be sequentially installed with condensation Device（41）And active carbon adsorption column（42）, condenser（41）Bottom is provided with outlet pipe（411）, cover plate（3）And sludge drying chamber（2） With the connection of mechanical seal hinged closure.

2. a kind of city domestic sewage excess sludge desiccation apparatus according to claim 1, is characterized in that：Described turbine The rotary shaft and blade of formula agitator is cavity structure, and both cavitys are connected, the turbine agitator described in two It is opposite to rotate.

3. a kind of city domestic sewage excess sludge desiccation apparatus according to claim 1, is characterized in that：Described cover plate Heat-insulation layer is coated with the outside wall surface of described sludge drying chamber.