CN105621834A - Sludge disintegration device - Google Patents
Sludge disintegration device Download PDFInfo
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- CN105621834A CN105621834A CN201610169849.0A CN201610169849A CN105621834A CN 105621834 A CN105621834 A CN 105621834A CN 201610169849 A CN201610169849 A CN 201610169849A CN 105621834 A CN105621834 A CN 105621834A
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- sludge
- mud
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The invention relates to a sludge disintegration device. The sludge disintegration device comprises a subcritical reaction tank group, a heater, a dryer and a fluidized pyrolysis device, wherein the subcritical reaction tank group is used for high-temperature pressurization of primary sludge and enables the primary sludge to be in a subcritical state to be pyrolyzed so as to obtain a sludge pyrolysis liquid; the heater is connected with the subcritical reaction tank group and used for providing the subcritical reaction tank group with heat; the dryer is connected with the subcritical reaction tank group and used for drying the sludge pyrolysis liquid to obtain sludge powder; the fluidized pyrolysis device is connected with the dryer and used for pyrolyzing the sludge powder to obtain powdered carbon. As the subcritical reaction tank group and the fluidized pyrolysis device are arranged, primary sludge can be firstly subjected to subcritical high-temperature pyrolysis reaction, then the sludge powder obtained by drying is subjected to fluidized pyrolysis reaction to obtain powdered carbon, accordingly, most biological cells in primary sludge are ruptured, the molecular chains of long-chain organic matters are to be ruptured, and primary sludge can be pyrolyzed more sufficiently. The carbonization effect is good, and the carbonization time is short.
Description
Technical field
The present invention relates to field of sludge treatment, it is specifically related to a kind of device for sludge disintegration.
Background technology
Mud, when carrying out drying sludge, is directly carried out heat drying by existing sludge drying mechanism, and the sludge-drying obtained still containing a lot of organic substance or pollutent, is discharged into outdoor and may cause environmental pollution.
Summary of the invention
Technical problem to be solved by this invention is according to the deficiencies in the prior art, it is provided that cross a kind of device for sludge disintegration.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of device for sludge disintegration, comprising:
Subcritical reaction tank group, described subcritical reaction tank group, for primary sludge is carried out high-temperature pressurizing, makes primary sludge enter subcritical state and carries out cracking and obtain mud lysate;
Heating unit, described heating unit is connected with described subcritical reaction tank group, for providing heat for described subcritical reaction tank group;
Drying machine, described drying machine is connected with described subcritical reaction tank group, for sludge-drying lysate, obtains mud powder;
Fluidisation pyrolysis installation, described fluidisation pyrolysis installation is connected with described drying machine, for described mud powder is carried out pyrolysis, obtains powdered carbon.
The invention has the beneficial effects as follows: the present invention is by arranging subcritical reaction tank group and fluidisation pyrolysis installation, primary sludge first can be reacted through subcritical Pintsch process, mud powder drying obtained again obtains powdered carbon through fluidisation pyrolytic reaction, the biomass cells of the overwhelming majority in primary sludge can be broken, interstitial water and planar water between cell are released, and long-chain organic molecule chain will rupture, and make the cracking of primary sludge more abundant, charred effect is good, and the time is short.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described subcritical reaction tank group comprises:
Preheating can group, is provided with many and returns mud pipe in described preheating can group, go back to the gap between mud pipe and between described go back to mud pipe and described preheating can group inside sidewalls face and formed into mud passage described in many; The two ends of described preheating can group have offered the first opening for feed and the first discharge port respectively, and the two ends of described time mud pipe have offered the 2nd opening for feed and the 2nd discharge port respectively, and described 2nd discharge port is connected with described drying machine; Described primary sludge enters in preheating can group from described first opening for feed;
Heating tank group, described heating tank group is connected with described heating unit by pipeline, for primary sludge is carried out high-temperature pressurizing, makes primary sludge enter subcritical state and carries out cracking and obtain mud lysate; Having offered the 3rd opening for feed and the 3rd discharge port in described heating tank group, described 3rd opening for feed is connected with described first discharge port by pipeline, and described 3rd discharge port is connected with described 2nd opening for feed by pipeline.
Adopt the useful effect of above-mentioned further scheme to be: by arranging preheating can group and heating tank group, first primary sludge is carried out preheating, then it heated, it is to increase the thermo-cracking efficiency of primary sludge, save the energy; By setting into mud passage in preheating can group and return mud pipe, producing mud lysate by heating tank group cracking and the primary sludge entered in mud passage is carried out preheating, energy-conserving and environment-protective, heat utilizes fully.
Further, described heating tank group comprises multiple heating tank connected by pipeline, in the heating tank of series connection, is positioned on the heating tank at two ends and has offered the 3rd opening for feed and the 3rd discharge port respectively; Being provided with release drum on described heating tank, the 3rd discharge outlet of described heating tank is provided with thermometer;
Described heating unit comprises multiple heat conduction oil tank and heat-conducting oil furnace; All being coated with a heat conduction oil tank outside heating tank described in each, leave space between described heating tank and the heat conduction oil tank being coated on its outer wall, the space between each heating tank and the heat conduction oil tank being coated on its outer wall is interconnected; Described heat-conducting oil furnace is connected with described space by transition pipeline.
The useful effect of above-mentioned further scheme is adopted to be: to be led to by the space between heat conduction oil tank and heat-conducting oil furnace and heated by heat conduction oil tank into thermal oil, enveloped by the outer wall of whole heat conduction oil tank, heat full and uniform; By arranging release drum and thermometer, be conducive to the fluid state in monitoring heating tank and mud extraction temperature.
Further, also comprise:
First storage mud tank, described first storage mud tank comprises the 4th opening for feed and the 4th discharge port, and described 4th opening for feed is connected with described 2nd discharge port by total sludge out pipe, and described 4th discharge port is connected with described drying machine;
Water cooler, described water cooler is arranged on the pipeline between described first storage mud tank and described 2nd discharge port or is arranged in described first storage mud tank;
2nd storage mud tank, the bottom of described 2nd storage mud tank is provided with ram pump, and described ram pump is connected with described first opening for feed by pipeline, and the pipeline of described ram pump both sides is provided with check valve, and described 2nd storage mud tank is connected with described ram pump by pipeline.
The useful effect of above-mentioned further scheme is adopted to be: by arranging the first storage mud tank, can be collected by the mud through High Temperature High Pressure cracking; By arranging water cooler, mud lysate can be carried out effective temperature-reducing process.
Described fluidisation pyrolysis installation comprises:
Fluidized reactor, described fluidized reactor is connected with described drying machine, for mud powder carries out anaerobic fluidisation heating, obtains powdered carbon; The 5th discharge port has been offered in the upper end of described fluidized reactor;
Well heater, described well heater is arranged on the bottom of described fluidized reactor, provides heat for the fluidisation heating for mud powder;
Fluidized air blower, described fluidized air blower is connected with described fluidized reactor by intake stack.
Further, dividing plate and baffle plate it is provided with in described fluidized reactor, described dividing plate and baffle plate are parallel to each other and are vertically arranged in the lower section of described 5th discharge port, the first gap is left between the upper end of described dividing plate and the upper wall of described fluidized reactor, leave the 2nd gap between its lower end and diapire of described fluidized reactor, between the lower end of described baffle plate and the diapire of described fluidized reactor, leave the 3rd gap.
The useful effect of above-mentioned further scheme is adopted to be: by arranging baffle plate and dividing plate, and on baffle plate and dividing plate, offer the first gap, the 2nd gap and the 3rd gap, after the wind speed of fluidized reactor upper part lowers, in the Vertical Channel that the mud powder not having carbonization good enters between dividing plate and baffle plate by the first gap, heating carbonization is continued in the bottom being back to fluidized reactor again, until carbonization completes.
Further, described fluidisation pyrolysis installation also comprises incubation cavity, and described well heater is fixed on the diapire of described incubation cavity inside; Described intake stack passes the sidewall of described incubation cavity and is fixedly linked with it, one end that described intake stack is positioned at described fluidized reactor inside is provided with multiple valve, and multiple described valve is evenly arranged between the sidewall of described fluidized reactor and described dividing plate; The top of described incubation cavity is provided with gas exhaust duct, and described gas exhaust duct is provided with waste-heat recoverer.
The useful effect of above-mentioned further scheme is adopted to be: by arranging incubation cavity, the heat losses in fluidized reactor can be avoided, by arranging valve on intake stack, and valve is arranged between fluidized reactor sidewall and dividing plate, the wind of fluidized air blower evenly can be blown in fluidized reactor by valve, ensure that the fluid effect of mud powder.
Further, described fluidisation pyrolysis installation also comprises nitrogen gas generating device, and described nitrogen gas generating device is connected with described intake stack.
Adopt the useful effect of above-mentioned further scheme to be: by arranging nitrogen gas generating device, nitrogen environment in fluidized reactor, can be full of.
Further, described fluidisation pyrolysis installation also comprises cyclone separator, and described cyclone separator is connected with described fluidized air blower by wind pipe, and described cyclone separator is connected with described discharge port by ciculation fluidized pipeline.
Further, described cyclone separator comprises:
Elementary cyclonic separator, described elementary cyclonic separator is connected with described discharge port by wind pipe;
High efficiency cyclonic dust collector, described high efficiency cyclonic dust collector upper end is connected with described fluidized air blower by ciculation fluidized pipeline;
Middle effect tornado dust collector, described middle effect tornado dust collector are arranged between described elementary cyclonic separator and described high efficiency cyclonic dust collector, described middle effect tornado dust collector are connected with described ciculation fluidized pipeline by pipeline, and the bottom of described middle effect tornado dust collector is connected with the bottom of described elementary cyclonic separator.
The useful effect of above-mentioned further scheme is adopted to be: by arranging cyclone separator, the ciculation fluidized heating of the powdered carbon being conducive to particle diameter big in fluidized reactor, is conducive to effective carbonization of mud powder.
Further, described fluidisation pyrolysis installation also comprises vaporized chemical adding set, and described vaporized chemical adding set is connected with described waste-heat recoverer; Described vaporized chemical adding set is provided with nozzle, and described nozzle is through the outer wall of described fluidized reactor and for being sprayed in fluidized reactor by the vaporized chemical in vaporized chemical adding set.
Accompanying drawing explanation
Fig. 1 is the connection structural representation of the subcritical reaction device of the present embodiment;
Fig. 2 is the connection structural representation of the fluidisation pyrolysis installation of the present embodiment;
Fig. 3 is the subcritical reaction device of the present embodiment and the connection structural representation of fluidisation pyrolysis installation;
Fig. 4 is the structure for amplifying schematic diagram in B portion in Fig. 1 and Fig. 3.
In accompanying drawing, the list of parts representated by each label is as follows:
1, subcritical reaction tank group; 11, preheating can group; 111, mud passage is entered; 112, mud pipe is returned; 1121, high-pressure nozzle; 113, total sludge out pipe; 114, preheating can; 12, heating tank group; 121, heating tank; 122, release drum; 123, thermometer; 124, tensimeter; 2, heating unit; 21, heat conduction oil tank; 22, heat-conducting oil furnace; 23, space; 3, the first storage mud tank; 31, the first gas discharge outlet; 4, water cooler; 5, the 2nd storage mud tank; 51, ram pump; 52, check valve; 53, the 2nd gas discharge outlet; The cross-sectional structure figure of A, preheating can; 6, fluidisation pyrolysis installation; 61, fluidized reactor; 611, dividing plate; 6111, the first gap; 6112, the 2nd gap; 612, baffle plate; 6121, the 3rd gap; 613, the 5th discharge port; 614, the 5th opening for feed; 62, well heater; 63, fluidized air blower; 631, intake stack; 632, ciculation fluidized pipeline; 64, valve; 65, nitrogen gas generating device; 66, cyclone separator; 661, elementary cyclonic separator; 662, middle effect tornado dust collector; 663, efficient cyclone dust separator; 663, wind pipe; 67, vaporized chemical adding set; 671, nozzle; 68, incubation cavity; 681, gas exhaust duct; 69, waste-heat recoverer; 7, drying machine.
Embodiment
The principle of the present invention and feature being described below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit the scope of the present invention.
As Figure 1-Figure 4, present embodiments provide a kind of device for sludge disintegration, comprising:
Subcritical reaction tank group 1, subcritical reaction tank group 1, for primary sludge is carried out high-temperature pressurizing, makes primary sludge enter subcritical state and carries out cracking and obtain mud lysate;
Heating unit 2, heating unit 2 is connected with subcritical reaction tank group 1, for providing heat for subcritical reaction tank group 1;
Drying machine 7, drying machine 7 is connected with subcritical reaction tank group 1, for sludge-drying lysate, obtains mud powder;
Fluidisation pyrolysis installation 6, fluidisation pyrolysis installation 6 is connected with drying machine 7, for mud powder is carried out pyrolysis, obtains powdered carbon.
The working process of the device for sludge disintegration of the present embodiment is: first through subcritical reaction tank group, primary sludge is carried out subcritical pyroreaction, obtain mud lysate, again Pintsch process liquid is obtained mud powder through drying machine drying, again mud powder is carried out high temperature and high pressure flow pyrolytic reaction through fluidisation pyrolysis installation, obtain powdered carbon. The present embodiment carries out cracking again after making primary sludge enter subcritical state, the biomass cells of the overwhelming majority in primary sludge can be broken, interstitial water and planar water between cell are released, long-chain organic molecule chain will rupture, solid-state mud is liquefied, making the cracking of primary sludge more abundant, and lytic effect is good, process is simple.
As shown in figures 1 and 3, the subcritical reaction tank group 1 of the present embodiment comprises:
Preheating can group 11, preheating can group 11 is for carrying out preheating to primary sludge;
Heating tank group 12, heating tank group 12 is connected with heating unit 2 with preheating can group 11 respectively by pipeline, for primary sludge is carried out high-temperature pressurizing, makes primary sludge enter subcritical state and carries out cracking and obtain mud lysate. Heating tank and preheating can group outer wall are equipped with thermal insulation layer, when can avoid preheating and heating, heat losses.
As shown in figures 1 and 3, preheating can group 11 is in series by pipeline by multiple preheating can 114, and the present embodiment adopts 5 preheating cans. In Fig. 1, Fig. 3 and Fig. 4, A is the cross-sectional structure schematic diagram of each preheating can 114 of preheating can group 11; Being provided with many in preheating can group 11 and return mud pipe 112, between many times mud the pipes 112 and gap returned between mud pipe 112 and preheating can group 11 inside sidewalls face is formed into mud passage 111; The two ends of preheating can group 11 have offered the first opening for feed and the first discharge port respectively, and the two ends returning mud pipe 112 have offered the 2nd opening for feed and the 2nd discharge port respectively, and the 2nd discharge outlet is connected with high-pressure nozzle 1121, and the 2nd discharge port is connected with drying machine 7; Primary sludge enters in preheating can group 11 from the first opening for feed. By setting into mud passage in preheating can group and return mud pipe, producing mud lysate by heating tank group cracking and the primary sludge entered in mud passage is carried out preheating, energy-conserving and environment-protective, heat utilizes fully.
In Fig. 1 and Fig. 3, heating tank group 12 having been offered the 3rd opening for feed and the 3rd discharge port, the 3rd opening for feed is connected with the first discharge port by pipeline, and the 3rd discharge port is connected with the 2nd opening for feed by pipeline.
In Fig. 1 and Fig. 3, heating tank group 12 comprises multiple heating tank 121 connected by pipeline, and the present embodiment adopts 5 heating tanks; In the heating tank 121 of series connection, it is positioned on the heating tank 121 at two ends and has offered the 3rd opening for feed and the 3rd discharge port respectively; Being provided with release drum 122 on heating tank 121, release drum 122 is provided with tensimeter 124, the 3rd discharge outlet of heating tank 121 is provided with thermometer 123;
In Fig. 1 and Fig. 3, heating unit 2 comprises multiple heat conduction oil tank 21 and heat-conducting oil furnace 22; Each heating tank 121 is outer is all coated with a heat conduction oil tank 21, leaves space 23 between heating tank 121 and the heat conduction oil tank 21 being coated on its outer wall, and the space 23 between each heating tank 121 and the heat conduction oil tank 21 being coated on its outer wall is interconnected; Heat-conducting oil furnace 22 is connected with space 23 by transition pipeline. Led to by the space between heat conduction oil tank and heat-conducting oil furnace and into thermal oil, heat conduction oil tank is heated, the outer wall of whole heat conduction oil tank is enveloped, heats full and uniform; By arranging release drum and thermometer, be conducive to the fluid state in monitoring heating tank and mud extraction temperature.
As shown in figures 1 and 3, the device for sludge disintegration of the present embodiment also comprises the first storage mud tank 3, water cooler 4 and the 2nd storage mud tank 5, first storage mud tank 3 the first gas discharge outlet 31, the 4th opening for feed and the 4th discharge port have been offered, 4th opening for feed is connected with the 2nd discharge port by total sludge out pipe 113, and mud lysate is discharged by the 4th discharge port;
Water cooler 4 is arranged on the pipeline between the first storage mud tank 3 and the 2nd discharge port or is arranged in the first storage mud tank 3; By arranging water cooler, mud lysate can be carried out effective temperature-reducing process;
2nd storage mud tank 5 is connected with the first opening for feed by pipeline, and the 2nd gas discharge outlet 53 offered by the 2nd storage mud tank 5. The bottom of the 2nd storage mud tank 5 is provided with ram pump 51, and ram pump 51 is connected with the first opening for feed by pipeline, and the pipeline of ram pump 51 both sides is provided with check valve 52. Heating tank 121 and preheating can group 11 outer wall are equipped with thermal insulation layer. By arranging ram pump at the 2nd storage mud pot bottom, and installing check valve on the pipeline of ram pump both sides, be conducive to the transmission of primary sludge, sludge reflux can be effectively avoided in the setting of check valve.
The sludge disintegration device adopting the present embodiment to provide carries out the method for sludge disintegration, is specially: the primary sludge of water ratio 70%-80% is carried out high-temperature pressurizing, makes primary sludge enter subcritical state and carries out cracking and obtain mud lysate. The cracking temperature of primary sludge is more than 300 DEG C, and cracking pressure is more than 10MPa.
The cracking of primary sludge comprises preheating and pyrolysis, and warm is utilize the heat of mud lysate that primary sludge is carried out preheating; Pyrolysis is that the primary sludge after preheating is carried out high-temperature pressurizing; After pyrolyzing sludge liquid preheating primary sludge, its temperature is down to less than 80 DEG C.
Entering after pyrolyzing sludge liquid preheating primary sludge and carry out in water cooler cooling and discharge, the temperature of the pyrolyzing sludge liquid after cooling is down to less than 50 DEG C.
The present embodiment carries out cracking again after making primary sludge enter subcritical state, the biomass cells of the overwhelming majority in primary sludge can be broken, interstitial water and planar water between cell are released, long-chain organic molecule chain will rupture, solid-state mud is liquefied, making the cracking of primary sludge more abundant, and lytic effect is good, process is simple.
The working process of the subcritical reaction device of the present embodiment is, first by spiral pump, primary sludge pump is entered in the 2nd storage mud tank, then by ram pump, the primary sludge in the 2nd storage mud tank is entered in mud passage by what pipeline was sent to preheating can group, the pipeline of ram pump both sides is provided with check valve, and the setting of check valve can avoid sludge reflux. Enter after the mud in mud passage carries out preheating in preheating can, enter in heating tank and heat, it is cracked into mud lysate under the high temperature and high pressure environment of primary sludge in heating tank, by returning, mud pipe enters preheating primary sludge in preheating can to mud lysate, after the complete primary sludge of mud lysate preheating, self heat is down to less than 80 DEG C, then passes through back the high-pressure nozzle ejection of mud pipe, enters in the first storage mud tank through total sludge out pipe.
As shown in Figure 2, the fluidisation pyrolysis installation 6 of the present embodiment, comprising:
Fluidized reactor 61, fluidized reactor 61, for mud powder carries out anaerobic fluidisation heating, obtains powdered carbon; Fluidized reactor 61 is connected with drying machine 7; The 5th discharge port 613 has been offered in the upper end of fluidized reactor 61, and its sidewall has been offered the 5th opening for feed 614; Dividing plate 611 and baffle plate 612 it is provided with in fluidized reactor 61, dividing plate 611 and baffle plate 612 are parallel to each other and are vertically arranged in the lower section of described discharge port 613, the first gap 6111 is left between the upper end of dividing plate 611 and the upper wall of fluidized reactor 61, leave the 2nd gap 6112 between its lower end and diapire of fluidized reactor 61, between the lower end of baffle plate 612 and the diapire of fluidized reactor 61, leave the 3rd gap 6121;
Incubation cavity 68, well heater 62 is fixed on the diapire of incubation cavity 68 inside; Intake stack 631 passes the sidewall of incubation cavity 68 and is fixedly linked with it, and one end that intake stack 631 is positioned at fluidized reactor 61 inside is provided with multiple valve 64, and multiple valve 64 is evenly arranged between the sidewall of fluidized reactor 61 and dividing plate 611; The top of incubation cavity 68 is provided with gas exhaust duct 681, and gas exhaust duct 681 is provided with waste-heat recoverer 69;
Well heater 62, well heater 62 adopts infrared heater; Well heater 62 is arranged on the bottom of fluidized reactor 61, provides heat for the fluidisation heating for mud powder;
Fluidized air blower 63, fluidized air blower 63 is connected with fluidized reactor 61 by intake stack 631;
Nitrogen gas generating device 65, nitrogen gas generating device 65 is connected with intake stack 631;
Vaporized chemical adding set 67, vaporized chemical adding set 67 is connected with waste-heat recoverer 69, vaporized chemical adding set 67 is provided with nozzle 671, and nozzle 671 is through the outer wall of fluidized reactor 61 and for spraying in fluidized reactor 61 by the vaporized chemical in vaporized chemical adding set 67; The vaporized chemical of the present embodiment is water vapour, and waste-heat recoverer is used for making the water in vaporized chemical adding set flash to water vapour for vaporized chemical adding set provides heat;
Cyclone separator 66, cyclone separator 66 is connected with fluidized reactor 61 by wind pipe 663, and for making powdered carbon be separated, the powdered carbon making particle diameter big continues fluidisation pyrolysis in fluidized reactor, and the powdered carbon that particle diameter is little is discharged with air-flow; By arranging cyclone separator, the ciculation fluidized heating of the powdered carbon being conducive to particle diameter big in fluidized reactor, is conducive to effective carbonization of mud powder.
The dividing plate of the present embodiment can up-down adjustment, it is possible to regulate the first gap and the width in the 2nd gap; After the wind speed of fluidized reactor upper part lowers, it does not have the mud powder that carbonization is good is entered in the Vertical Channel between dividing plate and baffle plate by the first gap, then it is back to the bottom continuation heating carbonization of fluidized reactor, until carbonization completes; Mud powder, by arranging fluidized reactor, fluidized air blower and well heater, can be carried out fluidisation heating by the present embodiment, and carbonization time is short, effective.
As shown in Figure 2, the cyclone separator 66 of the present embodiment comprises:
Elementary cyclonic separator 661, elementary cyclonic separator 661 is connected with the 5th discharge port 613 by wind pipe 663;
High efficiency cyclonic dust collector 663, high efficiency cyclonic dust collector 663 upper end is connected with fluidized air blower 63 by ciculation fluidized pipeline 632;
Middle effect tornado dust collector 662, middle effect tornado dust collector 662 are arranged between elementary cyclonic separator 661 and high efficiency cyclonic dust collector 663, middle effect tornado dust collector 662 are connected with ciculation fluidized pipeline 632 by pipeline, and the bottom of middle effect tornado dust collector 662 is connected with the bottom of elementary cyclonic separator 661.
The method that the fluidisation pyrolysis installation adopting the present embodiment to provide carries out sludge stream heat-transmission solution is specially, adopt fluidized air blower that the mud powder of the water ratio 10%-20% in fluidized reactor is become fluidized state, then by well heater, the mud powder after fluidisation is carried out pyrolysis, obtain powdered carbon.
The fluidisation pyrolysis of mud powder carries out in a nitrogen environment; While mud powder fluidisation pyrolysis, adding steam gasification agent in mud powder, make mud powder and steam gasification agent Homogeneous phase mixing, the fluidisation pyrolysis temperature of mud powder is 350 DEG C-550 DEG C.
The working process of the sludge stream pyrolysis installation of the present embodiment is: be sent to obtain mud powder through pulverizer pulverizing in fluidized reactor, then nitrogen gas generating device is opened, make whole fluidized reactor is full of nitrogen, then fluidized air blower is opened, the gas that fluidized air blower produces enters in fluidized reactor by valve, mud powder is made to be fluidized state, gas-fired infrared device bottom fluidized reactor is opened, mud powder in fluidized reactor is heated, Heating temperature is 350 DEG C-550 DEG C, the at high temperature carbonization of mud powder, powdered carbon particle after carbonization enters elementary cyclonic separator by ciculation fluidized pipeline, macrobead is through the first gap, owing to wind speed lowers, the gap between dividing plate and baffle plate can be entered into, owing to the bottom in this gap does not arrange valve, the powdered carbon of macrobead has just fallen the bottom of fluidisation separator, again carry out carbonization. and the powdered carbon of small-particle just enters air-out passage by discharge port, and then enter in elementary cyclonic separator, after entering elementary cyclonic separator, then enter middle rank tornado dust collector and senior tornado dust collector successively, carry out multistage classification, middle rank tornado dust collector are connected with fluidized reactor by pipeline, for fluidized reactor and ciculation fluidized pipeline are carried out dedusting, senior tornado dust collector are connected with fluidized air blower by ciculation fluidized pipeline, for fluidized air blower and whole ciculation fluidized pipeline are carried out dedusting. be provided with powdered carbon outlet through the bottom of cyclone separator, the powdered carbon after separation is discharged through powdered carbon outlet.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the device for sludge disintegration, it is characterised in that, comprising:
Subcritical reaction tank group (1), described subcritical reaction tank group (1), for primary sludge is carried out high-temperature pressurizing, makes primary sludge enter subcritical state and carries out cracking and obtain mud lysate;
Heating unit (2), described heating unit (2) is connected with described subcritical reaction tank group (1), for providing heat for described subcritical reaction tank group (1);
Drying machine (7), described drying machine (7) is connected with described subcritical reaction tank group (1), for sludge-drying lysate, obtains mud powder;
Fluidisation pyrolysis installation (6), described fluidisation pyrolysis installation (6) is connected with described drying machine (7), for described mud powder is carried out pyrolysis, obtains powdered carbon.
2. a kind of device for sludge disintegration according to claim 1, it is characterised in that, described subcritical reaction tank group (1) comprising:
Preheating can group (11), it is provided with many in described preheating can group (11) and returns mud pipe (112), go back to the gap between mud pipe (112) and between described go back to mud pipe (112) and described preheating can group (11) inside sidewalls face described in many and formed into mud passage (111); The two ends of described preheating can group (11) have offered the first opening for feed and the first discharge port respectively, the two ends of described time mud pipe (112) have offered the 2nd opening for feed and the 2nd discharge port respectively, and described 2nd discharge port is connected with described drying machine (7); Described primary sludge enters in preheating can group (11) from described first opening for feed;
Heating tank group (12), described heating tank group (12) is connected with described heating unit (2) by pipeline, for primary sludge is carried out high-temperature pressurizing, make primary sludge enter subcritical state and carry out cracking and obtain mud lysate; Having offered the 3rd opening for feed and the 3rd discharge port on described heating tank group (12), described 3rd opening for feed is connected with described first discharge port by pipeline, and described 3rd discharge port is connected with described 2nd opening for feed by pipeline.
3. a kind of device for sludge disintegration according to claim 2, it is characterized in that, described heating tank group (12) comprises multiple heating tank (121) connected by pipeline, in the heating tank (121) of series connection, it is positioned on the heating tank (121) at two ends and has offered the 3rd opening for feed and the 3rd discharge port respectively; Being provided with release drum (122) on described heating tank (121), the 3rd discharge outlet of described heating tank (121) is provided with thermometer (123);
Described heating unit (2) comprises multiple heat conduction oil tank (21) and heat-conducting oil furnace (22); Heating tank described in each (121) is all coated with a heat conduction oil tank (21) outward, leaving space (23) between described heating tank (121) and the heat conduction oil tank (21) being coated on its outer wall, the space (23) between each heating tank (121) and the heat conduction oil tank (21) being coated on its outer wall is interconnected; Described heat-conducting oil furnace (22) is connected with described space (23) by transition pipeline.
4. a kind of device for sludge disintegration according to claim 3, it is characterised in that, also comprise:
First storage mud tank (3), described first storage mud tank (3) comprises the 4th opening for feed and the 4th discharge port, described 4th opening for feed is connected with described 2nd discharge port by total sludge out pipe (113), and described 4th discharge port is connected with described drying machine (7);
Water cooler (4), described water cooler (4) is arranged on the pipeline between described first storage mud tank (3) and described 2nd discharge port or is arranged in described first storage mud tank (3);
2nd storage mud tank (5), the bottom of described 2nd storage mud tank (5) is provided with ram pump (51), described ram pump (51) is connected with described first opening for feed by pipeline, being provided with check valve (52) on the pipeline of described ram pump (51) both sides, described 2nd storage mud tank (5) is connected with described ram pump (51) by pipeline.
5. according to the described a kind of device for sludge disintegration of the arbitrary item of Claims 1-4, it is characterised in that, described fluidisation pyrolysis installation (6) comprising:
Fluidized reactor (61), described fluidized reactor (61) is connected with described drying machine (7), for mud powder carries out anaerobic fluidisation heating, obtains powdered carbon; The 5th discharge port (613) has been offered in the upper end of described fluidized reactor;
Well heater (62), described well heater (62) is arranged on the bottom of described fluidized reactor (61), provides heat for the fluidisation heating for mud powder;
Fluidized air blower (63), described fluidized air blower (63) is connected with described fluidized reactor (61) by intake stack (631).
6. a kind of device for sludge disintegration according to claim 5, it is characterized in that, dividing plate (611) and baffle plate (612) it is provided with in described fluidized reactor (61), described dividing plate (611) and baffle plate (612) are parallel to each other and are vertically arranged in the lower section of described 5th discharge port (613), the first gap (6111) is left between the upper end of described dividing plate (611) and the upper wall of described fluidized reactor (61), the 2nd gap (6112) is left between the diapire of its lower end and described fluidized reactor (61), the 3rd gap (6121) is left between the lower end of described baffle plate (612) and the diapire of described fluidized reactor (61).
7. a kind of device for sludge disintegration according to claim 6, it is characterized in that, described fluidisation pyrolysis installation also comprises incubation cavity (68), and described well heater (62) is fixed on the inner diapire of described incubation cavity (68); Described intake stack (631) is through the sidewall of described incubation cavity (68) and is fixedly linked with it, one end that described intake stack (631) is positioned at described fluidized reactor (61) inner is provided with multiple valve (64), and multiple described valve (64) is evenly arranged between the sidewall of described fluidized reactor (61) and described dividing plate (611); The top of described incubation cavity (68) is provided with gas exhaust duct (681), and described gas exhaust duct (681) is provided with waste-heat recoverer (69).
8. a kind of device for sludge disintegration according to claim 7, it is characterized in that, described fluidisation pyrolysis installation also comprises nitrogen gas generating device (65), and described nitrogen gas generating device (65) is connected with described intake stack (631).
9. a kind of device for sludge disintegration according to claim 8, it is characterized in that, described fluidisation pyrolysis installation also comprises cyclone separator (66), described cyclone separator (66) is connected with described fluidized air blower (63) by wind pipe (663), and described cyclone separator (66) is connected with described 5th discharge port (613) by ciculation fluidized pipeline (632).
10. a kind of device for sludge disintegration according to claim 9, it is characterised in that, described cyclone separator (66) comprising:
Elementary cyclonic separator (661), described elementary cyclonic separator (661) is connected with described 5th discharge port (613) by wind pipe (663);
High efficiency cyclonic dust collector (663), described high efficiency cyclonic dust collector (663) upper end is connected with described fluidized air blower (63) by ciculation fluidized pipeline (632);
Middle effect tornado dust collector (662), described middle effect tornado dust collector (662) are arranged between described elementary cyclonic separator (661) and described high efficiency cyclonic dust collector (663), described middle effect tornado dust collector (662) are connected with described ciculation fluidized pipeline (632) by pipeline, and the bottom of described middle effect tornado dust collector (662) is connected with the bottom of described elementary cyclonic separator (661).
11. a kind of devices for sludge disintegration according to claim 10, it is characterized in that, described fluidisation pyrolysis installation also comprises vaporized chemical adding set (67), and described vaporized chemical adding set (67) is connected with described waste-heat recoverer (69); Described vaporized chemical adding set (67) is provided with nozzle (671), and described nozzle (671) is through the outer wall of described fluidized reactor (61) and for being sprayed in fluidized reactor (61) by the vaporized chemical in vaporized chemical adding set (67).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316930A (en) * | 2019-08-01 | 2019-10-11 | 江苏创新环境工程有限公司 | The infrared pyrolysis device of low temperature electric in a kind of composite anti-explosion formula |
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| CN205398416U (en) * | 2016-03-23 | 2016-07-27 | 誉晟蓝天环境科技（北京）有限公司 | A device for mud decomposes |
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| EP0117003A2 (en) * | 1983-02-18 | 1984-08-29 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO | Fluidised bed combustion apparatus |
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