CN201458938U - Sludge drying-carbonizing treatment device - Google Patents

Sludge drying-carbonizing treatment device Download PDF

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Publication number
CN201458938U
CN201458938U CN2009201007252U CN200920100725U CN201458938U CN 201458938 U CN201458938 U CN 201458938U CN 2009201007252 U CN2009201007252 U CN 2009201007252U CN 200920100725 U CN200920100725 U CN 200920100725U CN 201458938 U CN201458938 U CN 201458938U
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China
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machine
drying
treatment
carbonization
carbonizing
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Expired - Lifetime
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CN2009201007252U
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Chinese (zh)
Inventor
阮安徽
王凤桐
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MAENDA GROUP CO Ltd
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MAENDA GROUP CO Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

A sludge drying-carbonizing treatment device mainly aims at solving the problems of the existing sludge treatment device, such as high treatment cost, need of a large amount of auxiliary fuels, and poor treatment effect. The sludge drying-carbonizing treatment device is characterized by consisting of a drying treatment device and a carbonizing treatment device, wherein the drying treatment device consists of a throwing hopper (1), a screw conveyor (2), a primary drier (3), a fan (4), a pump (5), a burning furnace (6), a fuel tank (7), a cooling tower (8), a rotary furnace (9), a secondary drier (10) and a dried material storing tank (11); and the carbonizing treatment device consists of a fire-eruption type carbonizer burning furnace (11), a carbonizer (12), a carbonized material storing tank (13) and a condenser (14). The sludge drying-carbonizing treatment device has the characteristics of low treatment cost, less auxiliary fuels and good treatment effect, thus achieving the effects of saving energy and protecting environment.

Description

Sludge drying and carbonizing processing device
Technical field:
The utility model relates to a kind of apparatus sewage sludge treatment unit, especially sludge drying and carbonizing processing device.
Background technology:
Along with the continuous growth of urban population, the mud generation is also in continuous growth.Mud is made up of throw out residual in the sewage treatment process, has higher moisture and organic components, so deal with very thorny.Handle this active sludge, at first need to carry out processed then, dispose by following listed several modes at last through stabilization treatment.Sludge Disposal Techniques is of a great variety, but all is based on landfill and burning all the time.Though the processing costs of landfill is not high, the methane that landfill produced (Greenhouse effect) can cause environmental pollution with leaching water (stench), and the enlarging of landfill yard also is subjected to the restriction of several factors, and the utilising efficiency in soil is descended.The technology of another widespread usage is burned exactly, but higher because of the water ratio of mud, burning disposal needs a large amount of auxiliary fuels, and this obviously can't realize utilizing expeditiously the energy.
The utility model content:
In order to solve existing sludge treatment equipment processing costs height, to need a large amount of auxiliary fuels and the problem of poor processing effect, the utility model provides a kind of sludge drying and carbonizing processing device, this sludge drying and carbonizing processing device has that processing costs is low, auxiliary fuel reaches the good characteristics of treatment effect less, thereby reaches effect in energy saving and environmental protection.
The technical solution of the utility model is: this sludge drying and carbonizing processing device comprises by drying process device and carbonization treatment apparatus and forming, it is characterized in that: described drying treatment is by cast hopper, the screw conveyer machine, the chopped-off head drying machine, fan, pump, roasting kiln, tanks, cooling tower, rotary kiln, secondary drying machine and dry thing storage tank are formed, be provided with the screw conveyer machine between cast hopper outlet and the import of chopped-off head drying machine, be provided with the screw conveyer machine between drying machine outlet and the rotary kiln import, be provided with the screw conveyer machine between rotary kiln outlet and the secondary drying machine import, be provided with the screw conveyer machine between secondary drying machine outlet and the import of dry thing storage tank, be provided with the screw conveyer machine between dry thing storage tank outlet and the carbonization treatment apparatus import, the chopped-off head drying machine is connected with roasting kiln by pipeline and fan, tanks is connected with roasting kiln by pipeline and pump, rotary kiln and secondary drying machine are connected with the chopped-off head drying machine respectively by pipeline, and secondary drying machine is connected with cooling tower by pipeline and fan; Described carbonization treatment apparatus is made up of flame formula carbonization machine roasting kiln, carbonization machine, carbide storage tank and condenser, the import of flame formula carbonization machine roasting kiln is connected with dry thing storage tank outlet by the screw conveyer machine, flame formula carbonization machine roasting kiln is connected with carbonization machine by pipeline, carbonization machine is connected with the carbide storage tank by pipeline, and carbonization machine is connected with condenser by the pipeline road.
The utlity model has following beneficial effect: this sludge drying and carbonizing processing device is owing to adopt chopped-off head drying machine primary drying, the rotary kiln drying, secondary drying machine redrying. fully take into account the physical properties of mud when the different water cut rate, for making its highly effective drying dispose different drying machines. drying installation is generally by the chopped-off head drying machine, secondary drying machine and a rotary kiln are formed. when carrying out primary drying by the chopped-off head drying machine, the moisture content of mud is the highest, the hot gas of discharging from rotary kiln carries out direct heating through the centre of chopped-off head drying machine. afterwards, in roasting kiln, reheated once more, be transmitted back to the outside of chopped-off head drying machine for the first time again, carry out indirect heating, to reach the purpose that makes full use of residual heat resources. through the exsiccant mud first time, enter next link. be sent in the rotary kiln by the screw conveyer machine, rotary kiln can directly obtain heat from roasting kiln. through carrying out second time behind the rotary kiln during secondary drying machine drying, can utilize thermal radiation to carry out drying remaining moisture in the mud. dried mud, water ratio is about about 20%, need carry out carbonation process in order further to compress moisture content. it is low that this sludge drying and carbonizing processing device has processing costs thus, auxiliary fuel reaches the good characteristics of treatment effect less, thereby reaches effect in energy saving and environmental protection.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
1-cast hopper among the figure, 2-screw conveyer machine, 3-chopped-off head drying machine, 4-fan, 5-pump, the 6-roasting kiln, 7-tanks, 8-cooling tower, 9-rotary kiln, 10-level drying machine, the dry thing storage tank of 11-, 12-flame formula carbonization machine roasting kiln, 13-carbonization machine, 14-carbide storage tank, 15-condenser.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in accompanying drawing, this sludge drying and carbonizing processing device comprises by drying process device and carbonization treatment apparatus and forming, it is characterized in that: described drying treatment is by cast hopper 1, screw conveyer machine 2, chopped-off head drying machine 3, fan 4, pump 5, roasting kiln 6, tanks 7, cooling tower 8, rotary kiln 9, secondary drying machine 10 and dry thing storage tank 11 are formed, the mud that stores in the cast hopper 1 advances to carry out in the chopped-off head drying machine 3 the drying first time by outlet by screw conveyer machine 2, process dried mud for the first time enters in the rotary kiln 9 by screw conveyer machine 2, mud is reheated in roasting kiln once more, be transmitted back to the outside of chopped-off head drying machine 3 again, carry out indirect heating, to reach the purpose that makes full use of residual heat resources.Mud after 9 heating of process rotary kiln is input in the secondary drying machine 10 by screw conveyer machine 2 and carries out redrying, utilizes thermal radiation to carry out drying remaining moisture in the mud.Dried mud, water ratio need carry out carbonation process in order further to compress moisture content about about 20%.The mud that secondary drying machine 10 comes out enters in the dry thing storage tank 11 by screw conveyer machine 2 and waits for carbonizing treatment.Be provided with screw conveyer machine 2 between dry thing storage tank 11 outlets and the carbonization treatment apparatus import, chopped-off head drying machine 3 is connected with roasting kiln 6 by pipeline and fan 4, tanks 7 is connected with roasting kiln 6 by pipeline and pump 5, provides fuel and oxygen by fan 4 and tanks 7 for rotary kiln 9.Rotary kiln 9 and secondary drying machine 10 are connected with chopped-off head drying machine 3 respectively by pipeline, give chopped-off head drying machine 3 by pipeline with the heat delivery of rotary kiln 9, to reach the purpose that makes full use of residual heat resources.Secondary drying machine 10 is connected with cooling tower 8 by pipeline and fan 4; Described carbonization treatment apparatus is made up of flame formula carbonization machine roasting kiln 12, carbonization machine 13, carbide storage tank 14 and condenser 15, mud through drying treatment in the dry thing storage tank 11 is sent into flame formula carbonization machine roasting kiln 12 internal heating through screw conveyer machine 2, mud after 12 heating of flame formula carbonization machine roasting kiln is sent into carbonization machine 13 by pipeline and is carried out carbonizing treatment, send in the carbide storage tank 14 through the mud after carbonization machine 13 carbonizing treatment, carbonization machine 13 is connected with condenser 15 by the pipeline road.
During actual the use; this sludge drying and carbonizing processing device drying process is divided into chopped-off head drying machine 3 primary dryings; rotary kiln 9 dryings; secondary drying machine 10 redryings. fully take into account the physical properties of mud when the different water cut rate; for making its highly effective drying dispose different drying machines. drying installation is generally by chopped-off head drying machine 3; secondary drying machine 10 and a rotary kiln 9 are formed. when carrying out primary drying by chopped-off head drying machine 3; the moisture content of mud is the highest; the hot gas of discharging from rotary kiln 9 carries out direct heating through the centre of chopped-off head drying machine 3. afterwards; in roasting kiln, reheated once more; be transmitted back to the outside of chopped-off head drying machine 3 for the first time again; carry out indirect heating; to reach the purpose that makes full use of residual heat resources. through the exsiccant mud first time; enter next link. be sent in the rotary kiln 9 by screw conveyer machine 2; rotary kiln 9 can directly obtain heat from roasting kiln. through carrying out second time behind the rotary kiln 9 during secondary drying machine 10 dryings; can utilize thermal radiation to carry out drying remaining moisture in the mud. dried mud; water ratio is about about 20%; need carry out carbonation process in order further to compress moisture content. dry thing is heated to about 650 ℃ in airtight carbonization machine 13; volatiles can be thermal decomposited in carbonization process. and residual volatiles can loop back in the roasting kiln; from newly being converted into the dry auxiliary thermal source required with carbonization system. be equipped with stink trap (device of collection moisture) in order effectively to catch the free water (water in the space) that produces the drying process and inherent moisture (moisture that links to each other with organism); and be provided with roasting kiln protector and axle protector simultaneously. because in roasting kiln, adopt direct flame mode to heat; so carbide has the danger of being lighted; lighted for fear of carbide; improve carbide sensitization degree (porous) simultaneously; thereby utilize water vapour to carry out carbonization. dry thing can be finished carbonization in carbonization machine within 20 minutes. behind the drying sludge; further reduce its moisture content if desired; need in airtight space, heat, thereby cause following reaction with the temperature more than 500 ℃.
CnHn (organism) xCH4+yH2+C (carbon) (1)
CH4+H2O?CO+3H2····················(2)
Reaction (1) is that organic waste can produce solid (carbon) and H2 when heating, and CO, CO2, CH4 etc. have the reaction of the gas of volatilization character, and reaction (2) is the reaction that produces the inflammable gas of CO and H2.After mud carried out dry carbonization, the by product carbide (carbon) that is generated was the carbon element particle that the high temperature more than 500 ℃ produces down, and tasteless, purifying air and adsorptivity are strong, and its calorific value has strong basicity greatly about 1500~2500kcal/kg.Because of its specific surface area is bigger, so use range is very extensive.Utilize the strong characteristics of carbide purifying air and adsorptivity, can also can be used as the scavenging agent of contaminated river and the gac of sorbent material and use in sewage work as efficient treatment agent.Utilize its calorific value, it is mixed with coke can be used as steel-making with adding the carbon agent; Behind mixing moulding such as coal, can be as the auxiliary fuel in the plastic greenhouse; Because of its shape unanimity, be convenient to packed and transported; Because of it has alkalescence, the carbide that heavy metal content is lower can be used as the modifying agent of acid soil, the overburden layer of landfill yard, microorganism adsorption layer of golf course or playground or the like.The difficult point of drying sludge and carbonization maximum, can promptly effectively reduce by 70~80% high-moisture percentage be the key that realizes drying sludge and carbonization.In Korea S dehumidification system has efficiently been arranged, effectively removed moisture, and had entity project can supply to investigate.
This sludge drying and carbonizing processing device has and need not other burn processing processes or RTO (thermooxidizing) equipment, both can remove stench and white cigarette.The most of dust that produces when dry can be adsorbed on the dry thing, so the load of control of dust facility is less.Small dust, VOC etc. all between radiant heat zone (900 ℃) internal combustion burn.Chopped-off head drying machine 3 once, rotary kiln 9, the efficient activity array structure of secondary drying machine 10 secondaries, solving with the interval different viscosity problem that change of moisture content, and surface-area concerns constructivity problems such as fire prevention.The thermal source of chopped-off head drying machine 3 primary dryings is made up of the direct heat and the indirect thermal of recycling.Rotary kiln 9 dry direct torch firing heating and the inlet spray regimes of adopting, rotary kiln 9 adopts improvement wide amplitude type and horizontal type (mode of CarryingFlight) structure to increase the surface-area and the aerial hold-up volume of the thing that is dried.The thermal source of secondary drying machine 10 redryings is the indirect thermal source that utilizes waste heat, thereby makes dry thing stabilization (uniform mixing drying).Organism self produces carbonizing gas in carbonation process, can use as the energy in dry carbonization process, and final product is a carbide.Because some changes into carbonizing gas organism, the drying ratio of final product is that 1/3. carbonization is to carry out under hot conditions, considers the thermal distortion characteristic of material and the weather resistance of mechanical means, is provided with above device, so that efficient is maximized.The drying effect of the one raw material moisture condenser that maximizes-be provided with; two in order to protect casing that heat is transmitted the passage specialization; three prevent the distortion of axle in the carbide furnace and are provided with anti-air injection device; burning of four carbonizing gas and roasting kiln protector; five prevent to discharge the device that carbide is lighted, six carbonizing gas particle collector characteristics.Has the value of applying.

Claims (1)

1. sludge drying and carbonizing processing device, comprise by drying process device and carbonization treatment apparatus and forming, it is characterized in that: described drying treatment is by cast hopper (1), screw conveyer machine (2), chopped-off head drying machine (3), fan (4), pump (5), roasting kiln (6), tanks (7), cooling tower (8), rotary kiln (9), secondary drying machine (10) and dry thing storage tank (11) are formed, be provided with screw conveyer machine (2) between cast hopper (1) outlet and chopped-off head drying machine (3) import, be provided with screw conveyer machine (2) between drying machine (3) outlet and rotary kiln (9) import, be provided with screw conveyer machine (2) between rotary kiln (9) outlet and secondary drying machine (10) import, be provided with screw conveyer machine (2) between secondary drying machine (10) outlet and dry thing storage tank (11) import, be provided with screw conveyer machine (2) between dry thing storage tank (11) outlet and the carbonization treatment apparatus import, chopped-off head drying machine (3) is connected with roasting kiln (6) by pipeline and fan (4), tanks (7) is connected with roasting kiln (6) by pipeline and pump (5), rotary kiln (9) and secondary drying machine (10) are connected with chopped-off head drying machine (3) respectively by pipeline, and secondary drying machine (10) is connected with cooling tower (8) by pipeline and fan (4);
Described carbonization treatment apparatus is made up of flame formula carbonization machine roasting kiln (12), carbonization machine (13), carbide storage tank (14) and condenser (15), flame formula carbonization machine roasting kiln (12) import is connected with dry thing storage tank (12) outlet by screw conveyer machine (2), flame formula carbonization machine roasting kiln (12) is connected with carbonization machine (13) by pipeline, carbonization machine (13) is connected with carbide storage tank (14) by pipeline, and carbonization machine (13) is connected with condenser (15) by the pipeline road.
CN2009201007252U 2009-08-28 2009-08-28 Sludge drying-carbonizing treatment device Expired - Lifetime CN201458938U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101648771B (en) * 2009-08-28 2011-06-15 摩恩达集团有限公司 Sludge drying and carbonizing processing device
CN102351398A (en) * 2011-09-28 2012-02-15 黄建 Combined linkage type rotor wing forced fluidized sludge drying machine
CN102659298A (en) * 2012-06-03 2012-09-12 安庆市隆鑫建材有限公司 Urban domestic sludge dehydrating and baking treatment device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101648771B (en) * 2009-08-28 2011-06-15 摩恩达集团有限公司 Sludge drying and carbonizing processing device
CN102351398A (en) * 2011-09-28 2012-02-15 黄建 Combined linkage type rotor wing forced fluidized sludge drying machine
CN102351398B (en) * 2011-09-28 2012-12-19 黄建 Combined linkage type rotor wing forced fluidized sludge drying machine
CN102659298A (en) * 2012-06-03 2012-09-12 安庆市隆鑫建材有限公司 Urban domestic sludge dehydrating and baking treatment device
CN102659298B (en) * 2012-06-03 2014-02-12 安庆市隆鑫建材有限公司 Urban domestic sludge dehydrating and baking treatment device

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Granted publication date: 20100512

Effective date of abandoning: 20090828