CN104818036B - The method and sludge charcoal processing system of sewage disposal are carried out with self-produced sludge carbon - Google Patents

Abstract

Method the invention discloses sewage disposal is carried out with self-produced sludge carbon, comprises the following steps：A. raw material sewage is filtered, being then fed into setting pot carries out sand setting；B. add activated carbon and mix, settle and obtain wet mud by being not less than sludge broken wall denaturation mixing ratio in the sewage supernatant after sand setting；C. wet mud press filtration is obtained into filter cake；D. filtration cakes torrefaction is obtained into dewatered sludge；E. dewatered sludge granulation is obtained into mud granule；F. mud granule carbonized, activate and obtain sludge carbon and thermal decomposition product；G. the activated carbon used by replacing step b with sludge carbon, repeat step a ~ f.Also disclose sludge charcoal processing system.When the addition of activated carbon or sludge carbon is not less than sludge broken wall denaturation mixing ratio, will the effective broken wall denaturant as sludge gelatin polymer (EPS), it is not necessary to carry out pyrohydrolysis；Reduce the cost of sludge charcoal processing；Sludge charcoal processing energy consumption and cost are reduced, reasonability economically is realized.

Description

The method and sludge charcoal processing system of sewage disposal are carried out with self-produced sludge carbon

Technical field

The present invention relates to sewage treatment area, and in particular to carry out the method and sludge system of sewage disposal with self-produced sludge carbon Charcoal system.

Background technology

Known sewage water treatment method can be divided into Physical, bioanalysis and chemical method, and chemical method is mainly used in heavy metal and contains Amount Industrial Wastewater Treatment high, such as：Neutralization, redox, ion exchange, electrolysis；It is rarely used in the municipal sewage of complicated component Treatment.

By degree for the treatment of, municipal sewage treatment is divided into coagulation, two stage treatment and tertiary treatment.The main pin of coagulation To suspended material in water, frequently with physical method, by after coagulation, wastewater suspended substance removal is up to 40% or so, attachment The clearance about 25%~30% of 30% or so, BOD5 is also can remove in the organic matter of suspension；Two stage treatment mainly goes decontamination In colloid and the organic pollution materials of dissolved state in water, the active sludge of method and biomembrance process of usual use are passed through After two stage treatment, BOD5 clearances are up to more than 90%；Tertiary treatment is after coagulation, two stage treatment, further to locate The organic matter for managing difficult degradation can cause soluble inorganic matters such as nitrogen, the phosphorus of body eutrophication etc., further to improve water quality For the purpose of the relevant discharge standard of country is reached, the method that tertiary treatment is used have biological carbon and phosphorous removal, coagulating sedimentation (clarify, Air supporting), charcoal absorption, filtering etc..

Activated sludge process is the leading technology of current municipal sewage two stage treatment, be to sewage in various micropopulations Continuously mixed and cultivated, using the biological agent of activated sludge, under aerobic, anoxic, anaerobic condition, decomposed removal sewage In organic pollution, be then separated from water sludge, most of sludge reflux is unnecessary to the aeration tank as bioreactor Activated Sludge System is discharged as excess sludge in part；Activated sludge is exactly biological floes, perches thereon, lives substantial amounts of Microorganism, they obtain energy, constantly growth by foodstuff of lysotype organic matter, so that sewage is purified.

But the complex process of activated sludge process, reaction time long, floor space and equipment investment are big, energy consumption and run into This height, and the waste gas of aeration tank discharge has peculiar smell, pollutes atmospheric environment, it is poor to sewage water, the adaptability of change of water quality, The adaptability of impact load is weaker, and sludge yield is big, complicated component, both containing substantial amounts of organic matter, and containing a harmful huge sum of money Category, pathogenic microorganism etc., treatment and disposal costs are high, and denitrogenation dephosphorizing only has 20-30%, and effect is poor, and producing reclaimed water need to be through three-level Treatment can be only achieved the relevant discharge standard of country.

Activated carbon has good absorption property and chemical stability, and resistance to water logging, high temperature resistant, high pressure resistant etc. protrude excellent Point, can effectively adsorb organic matter, the microorganism in waste water, reach the purpose of advanced treating；It was verified that activated carbon is to conventional place Compound in the reluctant poisonous used water difficult to degradate of reason method also has good treatment effect.Environmental Protection Agency refers to Go out, charcoal absorption is one of best-of-breed technology of removal VOC, and powdered activated carbon purification techniques is carried out to water The history for the treatment of has exceeded 70 years as long as, its clean-up effect obtained it is numerous country approve, but activated carbon after adsorption saturation into It is waste product, the high cost for processing sewage is economically unreasonable.

Chinese patent ZL201310335118.5 is disclosed " a kind of method that sludge prepares Carbon Materials ".Its core technology is The sludge that water content is 85% or so is set to carry out pyrohydrolysis, purpose under the conditions of HTHP (160-300 DEG C, 1.5-9.5MPa) It is the colloform texture and cell membrane walls for destroying sludge, improves the dewatering of sludge, then charcoal will be carried out after sludge dewatering, drying Change.Because sludge contains sand and solid granulates, the life-span of discharge valve is very short, and the price of every is up to more than 20,000, operation dimension Repair expense too high.Additionally, hot water solution reaction kettle belongs to the pressure vessel that need to be supervised, it is also hidden in the presence of safety in addition to cost is high Suffer from, fail to put into commercial operation so far.

The content of the invention

The technical problem to be solved in the present invention is to provide the sludge charcoal processing system that a kind of activated carbon processes sewage, can solve Current activated carbon processes the high cost of sewage, economically unreasonable, causes the problem without industrial scale applications feasibility.

The present invention is achieved through the following technical solutions：

The method that sewage disposal is carried out with self-produced sludge carbon, comprises the following steps：

A. raw material sewage is filtered, being then fed into setting pot carries out sand setting；

B. in the sewage supernatant after sand setting by be not less than sludge broken wall denaturation mixing ratio add activated carbon and mix, Sedimentation obtains wet mud；

C. wet mud press filtration is obtained into filter cake；

D. filtration cakes torrefaction is obtained into dewatered sludge；

E. dewatered sludge granulation is obtained into mud granule；

F. mud granule carbonized, activate and obtain self-produced sludge carbon and thermal decomposition product；

G. the activated carbon used by replacing step b with self-produced sludge carbon, repeat step a ~ f.

Further scheme of the invention is that sludge broken wall denaturation mixing ratio refers to that can make what sludge broken wall was denatured in step b The ratio between dry biomass in activated carbon minimum mass and sewage, its value is 0.5 ~ 1.5.

Further scheme of the invention is, also including step h：Combustion gas and bio oil are reclaimed from thermal decomposition product.

For the sludge charcoal processing system of the method for above-mentioned sewage disposal, including the disc type filter-pressing device, double for setting gradually Thermal source sludge drier, biomass granule forming machine and internal combustion type biological particles material are dried, carbonized, activation integral stove.

Further scheme of the invention is that the disc type filter-pressing device is made up of mud jacking tank and filter press, the mud jacking Tank shell bottom connects with filter press housing tip；The mud jacking ladle bowl intracoelomic cavity is provided with the agitator extended to filter press；Institute The gyroaxis level of filter press is stated through filter press housing, the gyroaxis is hollow structure, its one end connection filter press filtrate Interface, is coaxially installed with multiple disc type filter cores for connecting its cavity on the gyroaxis of filter press housing cavity, adjacent Fixed scraper plate relatively-stationary with filter press housing is provided between disc type filter core, the filter press housing cavity bottom is provided with pressure Filter auger.

Further scheme of the invention is that the mud jacking tank shell inwall is connected with mud jacking tank mistake by mud jacking tank pressure-bearing post Filter medium, forms mud jacking tank filtrate chamber, the mud jacking tank shell between the mud jacking tank filter medium and mud jacking tank shell inwall On be communicated with the mud jacking tank filtrate (liquid in mud jacking tank filtrate chamber；It is provided between the filter press auger and filter press housing bottom Filter press housing filter medium, forms the filter of filter press housing between the filter press housing filter medium and filter press housing bottom Sap cavity, the filter press housing bottom is communicated with the filter press housing filtrate (liquid in filter press housing filtrate chamber；The press filtration Casing intracoelomic cavity be respectively arranged at two ends with by end socket pressure-bearing post connect end socket end socket filter medium, the end socket filter medium with End socket filtrate chamber is formed between end socket, the end socket filtrate that end socket filtrate chamber is communicated with the end socket of the filter press housing goes out Mouthful.

Further scheme of the invention is that the mud jacking tank shell top is provided with slurry import, exhaust outlet and compressed air Import, the mud jacking tank shell bottom connects filter press housing tip by transition conduit；The agitating shaft of the agitator is passed through vertically Mud jacking tank shell is worn, its bottom for being located at mud jacking ladle bowl intracoelomic cavity is connected with agitating paddle, the bottom connection in its insertion transition conduit There is the auger being vertically arranged.

Further scheme of the invention is, the screw-conveyer-shaft of the filter press auger it is parallel with gyroaxis be arranged at filter press Lower housing portion, its one end passes filter press housing, and the filter press housing of other end institute direction is provided with filtered solid outlet, the filter cake Outlet is blocked by blind plate.

Further scheme of the invention is that described pair of thermal source sludge drier includes the housing of drying machine, in the housing Chamber is disposed with multiple heat exchange discs, and heat exchanging chamber is provided with the heat exchange disc, and the heat exchange disc upper/lower terminal leads to respectively Cross pipeline connection steam inlet house steward and the bilge main of connection heat exchanging chamber；Also include main shaft of the level through housing, positioned at shell Multiple scraper plates are installed, the case top positioned at main shaft one end is provided with wet mud import, another positioned at main shaft on the main shaft of intracoelomic cavity The housing bottom of one end is provided with dewatered sludge outlet；Heat smoke intake header is also connected on the housing, and is provided with wet waste gas outlet.

Further scheme of the invention is that the heat exchange disc is semicircle hollow structure.

Further scheme of the invention is that the multiple scraper plate is inclined to the same side, and distributing installation is in main shaft in the shape of a spiral On.

Further scheme of the invention is that the biomass granule forming machine includes feed compartment, is arranged at feed compartment bottom Shaping mould, driven from actuating unit through shaping mould rotating shaft, radially extended to outer feed compartment from rotating shaft drive link, The pressure roller of drive link is rotationally connected with, the shaping mould is provided with forming hole, the shaping on the circumference that pressure roller revolves round the sun with rotating shaft Mould is additionally provided with concentric deep-slotted chip breaker on the circumference that pressure roller revolves round the sun with rotating shaft, and the forming hole is located in deep-slotted chip breaker, and its diameter is small In the width of rebate of deep-slotted chip breaker, the edge that the pressure roller is contacted with shaping mould is the cambered surface of evagination, and its axial length is less than shaping The diameter in hole.

Further scheme of the invention is that the arc radius of the outer convex globoidal of the pressure roller edge are less than the arc half of deep-slotted chip breaker Footpath, has been evenly arranged multiple forming holes in every deep-slotted chip breaker, adjacent forming hole interval is less than 5mm.

Further scheme of the invention is that two drive links are at least connected with the rotating shaft, on every drive link respectively It is rotatably connected to the pressure roller that quantity is equal, position is corresponding.

Further scheme of the invention is that the internal combustion type biological particles material is dried, carbonized, activation integral stove includes Vertical body of heater, the body of heater top is provided with loader, and bottom is provided with unloader, and the body of heater is sequentially provided with dry from the top down Dry section, material envelope section, charing section, activation section, steam generation section and cooling section, the side wall of the dryer section are communicated with its inner chamber Wet flue gas outlet, upper tube box is provided with charing section, and internal combustion chamber is provided with activation section, and the internal combustion chamber top is communicated with down tube Case, is connected between the lower tube box and upper tube box by heat exchanging pipe, and the upper tube box is by the rising smoke pipe through material envelope section Connection wet flue gas outlet, the internal combustion chamber is connected with the sleeve extended to outside body of heater, and the external port of the sleeve is communicated with Combustion air inlet house steward and the burner of gas pipe；The water cooling chamber that bottom is water spray orifice plate is provided with the steam generation section, The cooling section outer wall is provided with cooling coil, and the water cooling chamber connects cooling coil by water-cooled endless tube.

Further scheme of the invention is connected by sand sealing groove between the internal combustion chamber and lower tube box；The water cooling chamber Top be connected to the bottom of internal combustion chamber；It is also associated with extending to the observation window outside body of heater and temperature survey on the internal combustion chamber Mouthful.

Further scheme of the invention is that the rising smoke pipe upper port is extended to and dries pars infrasegmentalis, and in port peace Equipped with deflation bell, the wet flue gas outlet internal port is located at dryer section top, and is provided with gas collection bell in the port； The inlet of cold air pipe extended to outside body of heater is also communicated with the rising smoke pipe.

Present invention advantage compared with prior art is：

First, when the addition of activated carbon or sludge carbon is not less than sludge broken wall denaturation mixing ratio, will be as sludge gel Effective broken wall denaturant of polymer (EPS), destroys the colloform texture and cell membrane walls of sludge, improves the dewatering of sludge, It is not necessary to carry out pyrohydrolysis, the cost of sludge charcoal processing is reduced；

2nd, activated carbon or sludge carbon are again the filter aids of gluing state organic matter, and the dewatering efficiency of filter can be greatly improved, Be also the adsorbent of Solid content in sewage, can significantly improve the settling property of sludge, or sludge deodorant, can significantly change The environment of kind subsequent treatment；

3rd, except first treated need to use activated carbon, subsequent treatment will replace activated carbon using self-produced sludge carbon, effectively reduce Cost of sewage disposal；

4th, disc type filter-pressing device is successively pressurizeed using magma pump and fluid media (medium), and can reduce will to the specification for sending stock pump Ask, also avoid the fault rate high for sending stock pump to produce under high loads, while dehydrating effect is improved, effective reducing energy consumption；

5th, double thermal source sludge driers increase heat smoke as Secondary Heat Source while using steam or hot water, pass through Double thermals source improve drying efficiency, reducing energy consumption；

6th, biomass granule forming machine reduces energy on the premise of the particle degree of packing is not influenceed by reducing invalid friction Consumption；

7th, internal combustion type biological particles material is dried, carbonized, the heat energy of activation integral stove is directly produced in burner hearth, several Do not exist heat-energy losses, using the outer heat of heat exchanging pipe, reduce the growing amount of pyrolysis gas, improve the calorific value of self-produced combustion gas, Reduce the load of cooling recovery system, saving energy consumption；

8th, the mud jacking tank of disc type filter-pressing device, filter press housing bottom and two ends are respectively provided with filter medium, accelerate pressure Filtering velocity degree, improves operating efficiency；

9th, heat exchange disc is semicircle, is easy to derive the fixed gas of its inner chamber, it is ensured that do not influence the temperature in heat exchange disc Degree, improves dry tenacity and efficiency, is conducive to further reduces cost；

Tenth, activator is that cooling section extinguishes water vapour produced during pyrocarbon, it is not necessary to outward for steam, easy, energy-conservation, Effectively reduce the low cost of manufacture of target product；

11, it is gentle, relatively low to the not harsh, energy consumption of auxiliary facility requirement with process conditions, can break at normal temperatures and pressures The colloform texture and cell membrane walls of bad sludge, process is simple, the reaction time is short, floor space is small, and equipment investment is few, energy consumption and fortune Row low cost, without outer supplying heat source, does not consume flocculant, and without foul smell discharge, impact resistance is strong, and water energy reaches country in producing Relevant discharge standard；

12, the energy consumption of each link of sludge charcoal processing is reduced, reduces cost realizes reasonability economically, in sludge system Charcoal technical elements are once great breakthroughs, are had great importance, and are conducive to promoting.

Brief description of the drawings

Fig. 1 is the structural representation of disc type filter-pressing device.

Fig. 2 is disc type filter cartridge construction schematic diagram.

Fig. 3 is the structural representation of double thermal source sludge driers.

Fig. 4 is the A of Fig. 3 to sectional view.

Fig. 5 is the structural representation of biomass granule forming machine.

Fig. 6 is the B direction views of Fig. 5.

Fig. 7 is the drying of internal combustion type biological particles material, charing, activation integral furnace structure schematic diagram.

Fig. 8 is the C of Fig. 7 to sectional view.

Specific embodiment

The method that sewage disposal is carried out with self-produced sludge carbon, comprises the following steps：

A. raw material sewage first uses gap width once to be filtered for the coarse rack of 18 ~ 22mm, then using gap width For the fine fack of 0.8 ~ 1.2mm carries out secondary filter, being then fed into setting pot carries out sand setting, to remove silt particle；

B. in the sewage supernatant after sand setting by be not less than sludge broken wall denaturation mixing ratio add activated carbon and mix, Second pond is sent in sedimentation, and sludge settling, in second pond bottom, is raising dewatering efficiency by sludge pumped, can first through dehydration Machine carries out the wet mud that mechanical dehydration obtains water content 80% or so, and sludge broken wall denaturation mixing ratio refers to that can become sludge broken wall Property activated carbon minimum mass and sewage in the ratio between dry biomass, the value is when processing the municipal sewage of developed area 1.5, the value is 1.0 when processing the municipal sewage of economically underdeveloped area, and the industry such as treatment printing and dyeing, plating is practically free of protein Industrial wastewater when the value be 0.5；

C., wet mud press filtration is obtained the filter cake of water content 35% or so using disc type filter-pressing device；

D., filtration cakes torrefaction is obtained the dewatered sludge of water content 25% or so using double thermal source sludge driers；

E. dewatered sludge granulation is obtained by mud granule using biomass granule forming machine, a mud granule part is used as pot Stove fuel production steam or hot water, in conjunction with flue gas as double thermal source sludge driers thermal source, remainder carbonized；

F. dried using internal combustion type biological particles material, carbonized, activation integral stove is carbonized mud granule, living Change obtains carbonizing butt the self-produced sludge carbon and thermal decomposition product of raw material weight 40%, be can be recycled to butt from thermal decomposition product Carbonize combustion gas and 10% bio oil of raw material weight 20%；

G. the activated carbon used by step b is replaced with a part of self-produced sludge carbon, repeat step a ~ f, flap portion export trade, Sewage disposal is set to turn into one without government subsidy and also the profit industry of coproduction sludge carbon, combustion gas and bio oil.

Disc type filter-pressing device used by step c mud jacking tank and filter press as shown in figure 1, be made up of, the mud jacking tank shell 118 bottoms connect the top of filter press housing 121 by transition conduit 13；The inner chamber of mud jacking tank shell 118 is provided with prolongs to filter press The agitator 1111 stretched, the agitating shaft 114 of the agitator 1111 runs through mud jacking tank shell 118 vertically, and it is located at mud jacking ladle bowl The bottom of the inner chamber of body 118 is connected with agitating paddle, and the bottom in its insertion transition conduit 13 is connected with the auger being vertically arranged；The pressure The level of gyroaxis 124 of filter runs through filter press housing 121, and the gyroaxis 124 is hollow structure, its one end connection filter press Filtrate interface 1216, is coaxially installed with multiple disks for connecting its cavity on the gyroaxis 124 of the inner chamber of filter press housing 121 Formula filter core 1213, is provided with fixed scraper plate 1212 relatively-stationary with filter press housing 121 between adjacent disc type filter core 1213, The inner chamber bottom of the filter press housing 121 is provided with filter press auger 129.

The inwall of mud jacking tank shell 118 is connected with mud jacking tank filter medium 119 by mud jacking tank pressure-bearing post 1110, described Mud jacking tank filtrate chamber is formed between mud jacking tank filter medium 119 and the inwall of mud jacking tank shell 118, on the mud jacking tank shell 118 It is communicated with the mud jacking tank filtrate (liquid 1113 in mud jacking tank filtrate chamber；The top of the mud jacking tank shell 118 is provided with slurry import 111st, exhaust outlet 115 and compressed air inlet 116.

Revolution scraper plate 123 is additionally provided with the gyroaxis 124 of the both sides of disc type filter core 1213.

The disc type filter core 1213 as shown in Fig. 2 including two blocks of coaxial rounded porous plates connected by pressure-bearing post, It is tightly connected between the edge of two blocks of rounded porous plates, the Surface coating of every block of rounded porous plate has filter cloth.

The screw-conveyer-shaft 126 of the filter press auger 129 it is parallel with gyroaxis 124 be arranged at the bottom of filter press housing 121, Its one end passes filter press housing 121, and the filter press housing 121 of other end institute direction is provided with filtered solid outlet 1214, the filter Cake outlet 1214 is blocked by blind plate 1215.

Filter press housing filter medium 1211, institute are provided between the filter press auger 129 and the bottom of filter press housing 121 State and filter press housing filtrate chamber 128, the pressure are formed between filter press housing filter medium 1211 and the bottom of filter press housing 121 The bottom of filter housing 121 is communicated with the filter press housing filtrate (liquid 1210 in filter press housing filtrate chamber 128.

The inner chamber of filter press housing 121 is respectively arranged at two ends with the end socket for connecting end socket by end socket pressure-bearing post 1219 and filters Medium 1218, forms end socket filtrate chamber, the end socket of the filter press housing 121 between the end socket filter medium 1218 and end socket On be communicated with the end socket filtrate (liquid 1222 in end socket filtrate chamber.

The mud jacking tank filter medium 119, filter press housing filter medium 1211 and end socket filter medium 1218 are filter Cloth.

Press filtration point low pressure (<1.0MPa) filtering and high pressure (1.2~4MPa) are filtered two stages, the motive power of low pressure filtering It is that outlet pressure is the centrifugal pump of 1.0MP, the motive power of high-pressure filteration has multistage high-pressure centrifugal, capsule hydraulic accumulator or pressure Contracting air, preferred compressed air, because compressed air can also have both the function of raffinate in stripping filter cake.

Exhaust outlet 115 is closed, mud jacking tank filtrate (liquid 1113 is opened, close blind plate 1215, is sent by low-pressure centrifugal pump Slurry fills mud jacking tank and filter press by the priority of slurry import 111, under the low pressure for maintaining outlet of centrifugal pump pressure 1.0MP, filter Liquid passes through mud jacking tank filter medium 119, filter press housing filter medium 1211, end socket filter medium 1218 and disc type filter core 1213 separate with solid, respectively by mud jacking tank filtrate (liquid 1113, filter press housing filtrate (liquid 1210, end socket filtrate (liquid 1222 and filter press filtrate interface 1216 is outer arranges, when the filtrate of outer row is less, terminate low pressure press filtration.

Slurry import 111 and mud jacking tank filtrate (liquid 1113 are closed, compressed air inlet 116 is opened, compression is stepped up Air pressure carries out high-pressure filteration to setting, and the pressure when being cracked occurs in filter cake is the extreme value pressure of high-pressure filteration, its value Determined by the property of filter cake.

After high-pressure filteration terminates, exhaust outlet 115 is opened, drain the compressed air in mud jacking tank, unload open blind plate 1215, started Filter press auger 129, discharge filter cake, vacate after unloading material space, restart gyroaxis 124, between disc type filter core 1213 and Filter cake in filter press inner chamber falls into the China and foreign countries of filter press auger 129 and arranges in the case where revolution rubbing board 123 and fixed scraper plate 1212 are acted on, pressure The agitator 1111 for starching tank will be discharged in filter press under the filter cake in mud jacking tank and transition conduit 13, and then falls into filter press auger 129 China and foreign countries arrange, and complete press filtration overall process.

Double thermal source sludge driers used by step d as shown in Figure 3 and Figure 4, including drying machine housing 24, the housing 24 Lumen orientation is provided with the heat exchange disc 25 of multiple semicircle hollow structures, and heat exchanging chamber is provided with the heat exchange disc 25, described Heat exchange disc 25 upper/lower terminal connects steam inlet house steward 210 and bilge main 28 by connecting the pipeline of heat exchanging chamber respectively；Also Including level through housing 24 main shaft 21, be provided with the main shaft 21 of the inner chamber of housing 24 multiple the same sides incline, in spiral shell The scraper plate 27 of rotation shape distribution, the top of housing 24 positioned at the one end of main shaft 21 is provided with wet mud import 22, positioned at the main shaft other end The bottom of housing 24 is provided with dewatered sludge outlet 26；Also connect heat smoke intake header 211 on the housing 24, and be provided with wet waste gas Mouth 23.

Biomass granule forming machine used by step e as shown in Figure 5 and Figure 6, including feed compartment 33, is arranged at the bottom of feed compartment 33 The shaping mould 31 in portion, the rotating shaft 34 driven from actuating unit through shaping mould 31, radially prolong from rotating shaft 34 to outer feed compartment At least two drive links 36 stretched, the quantity for being rotationally connected with every drive link 36 are suitable, the corresponding pressure roller 35 in position, it is described into Pattern 31 is additionally provided with concentric deep-slotted chip breaker 37 on the circumference that pressure roller 35 revolves round the sun with rotating shaft 34, is evenly arranged in every deep-slotted chip breaker 37 There are multiple forming holes 32 on the circumference that pressure roller 35 revolves round the sun with rotating shaft 34, the adjacent interval of forming hole 32 is less than 5mm, interval That is bridge, its length is smaller in allowed band, and the invalid frictional force operating distance between pressure roller 35 and shaping mould 31 is shorter, disappears The energy of consumption is fewer；The diameter of the forming hole 32 is less than the width of rebate of deep-slotted chip breaker 37, and the pressure roller 35 is contacted with shaping mould 31 Edge be the cambered surface of evagination, the arc radius of the outer convex globoidal less than deep-slotted chip breaker 37 arc radius, the pressure roller 35 Diameter of the axial length less than forming hole 32.

Forming hole is arranged in deep-slotted chip breaker, and shaping bore dia is less than the width of rebate of deep-slotted chip breaker, and pressure roller axial length is less than The diameter of forming hole, when pressure roller is by forming hole, although having gap between its both sides and forming hole, due to being in arc In groove, the wall of deep-slotted chip breaker plays a part of to gather to dewatered sludge so that the dewatered sludge into forming hole is not easy to overflow, substantially not The mud granule degree of packing that influence is suppressed；The axial length of pressure roller reduces, and the contact area with dewatered sludge is reduced, so as to subtract Energy loss caused by the small invalid frictional force between sludge；The edge that pressure roller is contacted with shaping mould is the cambered surface of evagination, Arc radius of the arc radius of outer convex globoidal less than deep-slotted chip breaker so that be linear contact lay between pressure roller and deep-slotted chip breaker, significantly drop Invalid frictional force of the low pressure roller at bridge and shaping mould between, so as to the invalid frictional force being greatly reduced between shaping mould is led The energy loss of cause；It is linear contact lay between pressure roller and deep-slotted chip breaker, is not in that sludge is compacted the situation so that increasing friction force, Continuous operation does not interfere with actuating unit service life yet；Comprehensive energy consumption is low, and power consumption is no more than 40 KWhs/ton of particulate materials.

Used by step f internal combustion type biological particles material dry, charing, activation integral stove as shown in Figure 7 and Figure 8, including Vertical body of heater, body of heater top is provided with loader 41, and bottom is provided with unloader 427, and the body of heater is from the top down successively Dryer section, material envelope section, charing section, activation section, steam generation section and cooling section are provided with, the side wall of the dryer section is communicated with it The wet flue gas outlet 43 of inner chamber, is provided with upper tube box 46 in charing section, the upper of its inner chamber is communicated with the wall of the charing section The wall of portion pyrolysis gas derivation house steward 48 and bottom pyrolysis gas derivation house steward 412, the charing section and activation section is provided with multiple company The inspection hole 411 of logical inner chamber, is provided with internal combustion chamber 415 in activation section, the top of the internal combustion chamber 415 is communicated with by sand sealing groove 414 Lower tube box 413, is connected between the lower tube box 413 and upper tube box 46 by heat exchanging pipe 410, the heat exchanging pipe 410 cut Face is preferably oblate, and the upper tube box 46 communicates through the rising smoke pipe 45 of material envelope section, and rising smoke pipe 45 upper port extends To drying pars infrasegmentalis, and deflation bell 428 is installed in the port, the internal port of wet flue gas outlet 43 is located at dryer section Top, and gas collection bell 42 is installed in the port, also it is communicated with the cold air extended to outside body of heater in the rising smoke pipe 45 Inlet tube 44；The internal combustion chamber 415 is connected with the sleeve 421 extended to outside body of heater, and the external port of the sleeve 421 is communicated with The burner 420 of combustion air inlet house steward 416 and gas pipe 418, is also associated with two and extends to stove on the internal combustion chamber 415 External observation window and temperature survey mouth 429, measure two flame temperatures of burner 420 of correspondence respectively, are used to adjust air Coefficient of excess；It is the water-cooled that water spray orifice plate 426, top is connected to the bottom of internal combustion chamber 415 that bottom is provided with the steam generation section Room 422, the cooling section outer wall is provided with cooling coil 424, and the water cooling chamber 422 connects cooling coil by water-cooled endless tube 423 424。

Upper tube box 46 and the material of wet flue gas outlet 43 preferably 304 stainless steels, lower tube box 413, sand sealing groove 414, internal combustion chamber 415 and the preferred 310s stainless steels of the material of heat exchanging pipe 410.

Mud granule is lifted through the shove charge of loader 41 by elevator, the preferred swinging air locking machine of the loader 41, through collection The cloth of gas bell 42, by deadweight from top to bottom successively through dryer section, material envelope section, charing section, activation section, steam generation section, cooling Section, after there is a series of physical-chemical change, is arranged by the unloader 427 of bottom is outer, the preferred swinging lock gas of unloader Machine.

Wherein, the effect of dryer section is that aqueous mud granule is removed into moisture, and in dryer section, mud granule is by from deflation Gaseous mixture (the temperature that bell 428 rises<200 DEG C) directly heat, the gaseous mixture is by the high temperature cigarette of heat exchanging pipe 410 Formed after gas and the cold air temperature adjustment sent into by inlet of cold air pipe 44, after carrying out heat, mass transter with mud granule material, through gas collection Bell 42, wet flue gas outlet 43 are outer to be arranged.

The effect of material envelope section is to prevent from carbonizing on the pyrolysis gas that section is produced going here and there to dryer section.

Charing section is main technique section, and its effect is to be pyrolyzed mud granule, and in this section, mud granule is changed High-temperature flue gas heating in hot tubulation 410, temperature is constantly raised until 500 DEG C or so of final temperature of charing, generation sludge carbon, biology Oil, pyrolkigneous liquid and combustion gas, wherein bio oil, pyrolkigneous liquid and combustion gas thermal decomposition product are derived house steward and are derived by pyrolysis gas, when thinking fecund When bio-oil produces combustion gas less, self-produced combustion gas can be derived house steward 48 from top pyrolysis gas and be sent to condensate recovery system；It is few when thinking When producing material oil fecund combustion gas, self-produced combustion gas can be derived house steward 412 from bottom pyrolysis gas and be sent to condensate recovery system.

Burning coal gas and combustion air produce high-temperature flue gas through burner 420, sleeve 421 in internal combustion chamber 415, for dry Needed for dry, charing, activation process, high-temperature flue gas enter into heat exchanging pipe 410 through lower tube box 413, and heat is transmitted into dirt by partition Mud particle.

Stove sludge will be entered and be made particulate material, the treatment intensity of stove can be significantly improved, be conducive to cloth, gas distribution, improved The uniformity of journey, reduces furnace gas resistance, reduces dust；Using internal combustion type, make compact conformation, the temperature of vertical direction in stove Gradient is reasonable.

Claims (16)

1. the method that sewage disposal is carried out with self-produced sludge carbon, it is characterised in that comprise the following steps：

A. raw material sewage is filtered, being then fed into setting pot carries out sand setting；

B. add activated carbon and mix, settle by being not less than sludge broken wall denaturation mixing ratio in the sewage supernatant after sand setting Obtain wet mud；

C. wet mud press filtration is obtained into filter cake；

D. filtration cakes torrefaction is obtained into dewatered sludge；

E. dewatered sludge granulation is obtained into mud granule；

F. mud granule carbonized, activate and obtain sludge carbon and thermal decomposition product；

G. the activated carbon used by replacing step b with sludge carbon, repeat step a ~ f.

2. the method for sewage disposal being carried out with self-produced sludge carbon as claimed in claim 1, it is characterised in that：Sludge in step b Broken wall denaturation mixing ratio refers to the ratio between dry biomass, its value in activated carbon minimum mass and the sewage that can be denatured sludge broken wall It is 0.5 ~ 1.5.

3. the method for sewage disposal being carried out with self-produced sludge carbon as claimed in claim 1, it is characterised in that：Also include step h： Combustion gas and bio oil are reclaimed from thermal decomposition product.

4. the sludge charcoal processing system of the method for sewage disposal described in any one of claim 1 ~ 3 is used for, it is characterised in that：Including according to The disc type filter-pressing device of secondary setting, double thermal source sludge driers, biomass granule forming machine and internal combustion type biological particles material Dry, charing, activation integral stove；The internal combustion type biological particles material is dried, carbonized, activation integral stove includes shaft (tower) furnace Body, the body of heater top is provided with loader（41）, bottom is provided with unloader（427）, the body of heater sets successively from the top down There are dryer section, material envelope section, charing section, activation section, steam generation section and cooling section, the side wall of the dryer section is communicated with it The wet flue gas outlet in chamber（43）, upper tube box is provided with charing section（46）, internal combustion chamber is provided with activation section（415）, the internal combustion Room（415）Top is communicated with lower tube box（413）, the lower tube box（413）With upper tube box（46）Between pass through heat exchanging pipe（410） Connection, the upper tube box（46）By the rising smoke pipe through material envelope section（45）Connection wet flue gas outlet（43）, the internal combustion Room（415）With the sleeve extended to outside body of heater（421）Connection, the sleeve（421）External port be communicated with combustion air and enter Mouth house steward（416）And gas pipe（418）Burner（420）；It is water spray orifice plate that bottom is provided with the steam generation section（426） Water cooling chamber（422）, the cooling section outer wall is provided with cooling coil（424）, the water cooling chamber（422）By water-cooled endless tube （423）Connection cooling coil（424）.

5. sludge charcoal processing system as claimed in claim 4, it is characterised in that：The disc type filter-pressing device is by mud jacking tank and pressure Filter is constituted, the mud jacking tank shell（118）Bottom and filter press housing（121）Top connects；The mud jacking tank shell（118） Inner chamber is provided with the agitator extended to filter press（1111）；The gyroaxis of the filter press（124）Level runs through filter press housing （121）, the gyroaxis（124）It is hollow structure, its one end connection filter press filtrate interface（1216）, positioned at filter press housing （121）The gyroaxis of inner chamber（124）On be coaxially installed with multiple disc type filter cores for connecting its cavity（1213）, adjacent disk Formula filter core（1213）Between be provided with and filter press housing（121）Relatively-stationary fixed scraper plate（1212）, the filter press housing （121）Inner chamber bottom is provided with filter press auger（129）.

6. sludge charcoal processing system as claimed in claim 5, it is characterised in that：The mud jacking tank shell（118）Inwall is by pressure Slurry tank pressure-bearing post（1110）It is connected with mud jacking tank filter medium（119）, the mud jacking tank filter medium（119）With mud jacking tank shell （118）Mud jacking tank filtrate chamber, the mud jacking tank shell are formed between inwall（118）On be communicated with the mud jacking in mud jacking tank filtrate chamber Tank filtrate (liquid（1113）；The filter press auger（129）With filter press housing（121）Filter press housing mistake is provided between bottom Filter medium（1211）, the filter press housing filter medium（1211）With filter press housing（121）Filter press is formed between bottom Housing filtrate chamber（128）, the filter press housing（121）Bottom is communicated with filter press housing filtrate chamber（128）Filter press Housing filtrate (liquid（1210）；The filter press housing（121）Inner chamber is respectively arranged at two ends with by end socket pressure-bearing post（1219）Even Connect the end socket filter medium of end socket（1218）, the end socket filter medium（1218）End socket filtrate chamber, institute are formed between end socket State filter press housing（121）End socket on be communicated with the end socket filtrate (liquid in end socket filtrate chamber（1222）.

7. sludge charcoal processing system as claimed in claim 5, it is characterised in that：The mud jacking tank shell（118）Top is provided with slurry Material import（111）, exhaust outlet（115）And compressed air inlet（116）, the mud jacking tank shell（118）Bottom passes through transition conduit （13）Connection filter press housing（121）Top；The agitator（1111）Agitating shaft（114）Run through mud jacking tank shell vertically （118）, it is located at mud jacking tank shell（118）The bottom of inner chamber is connected with agitating paddle, its insertion transition conduit（13）In bottom connect It is connected to the auger being vertically arranged.

8. sludge charcoal processing system as claimed in claim 5, it is characterised in that：The filter press auger（129）Screw-conveyer-shaft （126）With gyroaxis（124）Parallel is arranged at filter press housing（121）Bottom, its one end passes filter press housing（121）, The filter press housing of other end institute direction（121）It is provided with filtered solid outlet（1214）, the filtered solid outlet（1214）By blind plate （1215）Closure.

9. sludge charcoal processing system as claimed in claim 4, it is characterised in that：Described pair of thermal source sludge drier includes drying machine Housing（24）, the housing（24）Lumen orientation is provided with multiple heat exchange discs（25）, the heat exchange disc（25）Inside it is provided with Heat exchanging chamber, the heat exchange disc（25）Upper/lower terminal connects steam inlet house steward by connecting the pipeline of heat exchanging chamber respectively（210） And bilge main（28）；Also include that level runs through housing（24）Main shaft（21）, positioned at housing（24）The main shaft of inner chamber（21）On Multiple scraper plates are installed（27）, positioned at main shaft（21）The housing of one end（24）Top is provided with wet mud import（22）, positioned at main shaft The housing of the other end（24）Bottom is provided with dewatered sludge outlet（26）；The housing（24）On also connect heat smoke intake header （211）, and it is provided with wet waste gas outlet（23）.

10. sludge charcoal processing system as claimed in claim 9, it is characterised in that：The heat exchange disc（25）For semicircle is hollow Structure.

11. sludge charcoal processing systems as claimed in claim 9, it is characterised in that：The multiple scraper plate（27）Inclined to the same side, Distributing installation is in main shaft in the shape of a spiral（21）On.

12. sludge charcoal processing systems as claimed in claim 4, it is characterised in that：The biomass granule forming machine includes charging Room（33）, be arranged at feed compartment（33）The shaping mould of bottom（31）, through shaping mould（31）By actuating unit drive rotating shaft （34）, from rotating shaft（34）To the drive link that outer feed compartment is radially extended（36）, be rotationally connected with drive link（36）Pressure roller （35）, the shaping mould（31）In pressure roller（35）With rotating shaft（34）The circumference of revolution is provided with forming hole（32）, the shaping mould （31）In pressure roller（35）With rotating shaft（34）Concentric deep-slotted chip breaker is additionally provided with the circumference of revolution（37）, the forming hole（32）It is located at Deep-slotted chip breaker（37）In, its diameter is less than deep-slotted chip breaker（37）Width of rebate, the pressure roller（35）With shaping mould（31）The side of contact Portion is the cambered surface of evagination, and its axial length is less than forming hole（32）Diameter.

13. sludge charcoal processing systems as claimed in claim 12, it is characterised in that：The pressure roller（35）The arc of the outer convex globoidal of edge Shape radius is less than deep-slotted chip breaker（37）Arc radius, every deep-slotted chip breaker（37）In be evenly arranged multiple forming holes（32）, it is adjacent Forming hole（32）Interval is less than 5mm.

14. sludge charcoal processing systems as claimed in claim 12, it is characterised in that：The rotating shaft（34）On be at least connected with two Drive link（36）, every drive link（36）It is upper to be rotatably connected to the pressure roller that quantity is equal, position is corresponding respectively（35）.

15. sludge charcoal processing systems as claimed in claim 4, it is characterised in that：The internal combustion chamber（415）With lower tube box（413） Between pass through sand sealing groove（414）Connection；The water cooling chamber（422）Top be connected to internal combustion chamber（415）Bottom；The internal combustion Room（415）On be also associated with extending to observation window and temperature survey mouth outside body of heater（429）.

16. sludge charcoal processing systems as claimed in claim 4, it is characterised in that：The rising smoke pipe（45）Upper port is extended to Pars infrasegmentalis is dried, and deflation bell is installed in the port（428）, the wet flue gas outlet（43）Internal port is located at drying Section top, and gas collection bell is installed in the port（42）；The rising smoke pipe（45）In be also communicated with and extend to outside body of heater Inlet of cold air pipe（44）.