RU2088631C1 - Installation and method for heat treatment of wastes - Google Patents

Installation and method for heat treatment of wastes Download PDF

Info

Publication number
RU2088631C1
RU2088631C1 SU5010962A RU2088631C1 RU 2088631 C1 RU2088631 C1 RU 2088631C1 SU 5010962 A SU5010962 A SU 5010962A RU 2088631 C1 RU2088631 C1 RU 2088631C1
Authority
RU
Russia
Prior art keywords
combustion chamber
waste
installation
gas
solid residue
Prior art date
Application number
Other languages
Russian (ru)
Inventor
Май Карл
Ридле Клаус
Тратц Херберт
Лезель Георг
Original Assignee
Сименс АГ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE4107200A priority Critical patent/DE4107200A1/en
Priority to DEP4107200.6 priority
Application filed by Сименс АГ filed Critical Сименс АГ
Application granted granted Critical
Publication of RU2088631C1 publication Critical patent/RU2088631C1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/10Treatment of sludge; Devices therefor by pyrolysis
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/006General arrangement of incineration plant, e.g. flow sheets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/008Incineration of waste; Incinerator constructions; Details, accessories or control therefor adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/302Treating pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/303Burning pyrogases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/304Burning pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00Combustion
    • F23G2202/10Combustion in two or more stages
    • F23G2202/106Combustion in two or more stages with recirculation of unburned solid or gaseous matter into combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00Combustion
    • F23G2202/20Combustion to temperatures melting waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/10Supplementary heating arrangements using auxiliary fuel
    • F23G2204/103Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00Waste heat recuperation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/10Liquid waste
    • F23G2209/102Waste oil
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00Special features of, or arrangements for incinerators
    • F23G2900/00001Exhaust gas recirculation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00Preventing emissions
    • F23J2215/60Heavy metals; Compounds thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00Treatment devices
    • F23J2219/70Condensing contaminants with coolers
    • Y02E50/14
    • 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
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/40Valorisation of by-products of wastewater, sewage or sludge processing

Abstract

FIELD: waste disposal. SUBSTANCE: installation includes low-temperature carbonization reactor 2 for converting waste into low-temperature carbonization gas and solid residue; combustion chamber 8 receiving above-mentioned gas as fuel; apparatus 20 for separating solid residue into coarse and small particles, the latter being directed into combustion chamber to be burned. Dust-like and liquid wastes are directly introduced into combustion chamber as supplementary fuel. Combustion chamber is provided with pipeline 35 to withdraw molten slag, which is further cooled, for instance, in water bath. Smoke fumes are removed through pipeline 10. EFFECT: improved process flowsheet. 19 cl, 1 dwg

Description

 The invention relates to a plant for heat treatment of waste, which has a semi-coking reactor for processing waste into semi-coke oven gas and solid residue. A device is attached to the semicoking reactor for the removal and separation of the processed products into finely divided dust, semicoke gas and a solid residue. Directly followed by a device for separating a solid residue into a coarse fraction and a fine fraction. A pipeline departs from this device for supplying a fine fraction to a combustion chamber operating with an excess of oxygen. A conduit for supplying semi-coke oven gas containing fine dust is also included in the combustion chamber. A pipe leaves the combustion chamber to discharge molten slag. Due to this, the slag enters the cooling device. In addition, a pipe for exhausting flue gas leaves the combustion chamber, by means of which the combustion chamber is connected to the chimney.

The invention also relates to a method for heat treatment of waste, and the waste is semi-coking at a temperature of the order of 300 to 700 o C with a lack of oxygen, resulting in a semi-coke gas and solid residue. The solid residue is divided into a coarse fraction and a fine fraction. The fine fraction and semi-coke oven gas are burned to form flue gas and molten slag, and the coarse fraction is removed. Such an installation is known, for example, from German patent 2432504. In this installation, waste (for example, household waste) is channelized at temperatures between 300 and 600 o C without air, and the resulting channel gas is continuously sent through a red-hot layer of coke, which is formed from SHVELKOKS and summed up heated fresh air. In the coke layer, channel gas is converted to high-energy combustible gas. In this process, only as much oxygen (air) is supplied as necessary to maintain the temperature in the coke layer. Not only the channel coke obtained in the course of channeling, but, if necessary, also a high-quality carbon carrier, such as brown coal channel or charcoal, is fed to the coke layer. The resulting combustible gas, due to the splitting of longer molecular chains during the flow through the combustion chamber and the red-hot layer of coke, contains almost no harmful organic components. It can be cooled in a heat exchanger and then cleaned in a gas treatment unit, then it can be used for heating purposes or for the operation of internal combustion engines. A characteristic feature of such a waste heat treatment plant is that it is most often not located in close proximity to a combustible gas consumer. Therefore, the cost of the installation still needs to add the cost of building an extensive network of gas pipelines to individual consumers. It is very important that solid channeling waste is stored in special landfills. Here it is necessary to fear that the substances contained in the waste, like compounds of heavy metals, are washed out or leached over time and penetrate into groundwater or water streams. In addition, the thermal energy contained in the residues from the channeling is uselessly lost.

 To eliminate the drawback mentioned by the latter, separation of the channeling residue after grinding by sieving into a coarse fraction (inorganic substances such as metals, ceramics, glass) and a fine fraction (a high proportion of carbon-containing components) is provided [1] Metals are separated from the coarser fraction. The fine fraction together with coal in an even finer form is burned in the combustion chamber and is thus thermally used. The channel gas obtained during channelization is also supplied to the combustion chamber, from which oils and resins with a high boiling point are primarily removed in the condenser. It should be noted here that the combustion chamber in known installations is a combustion chamber of a conventional coal burning plant and that the combustion chamber is part of a steam generator. Because of the usual cooling of the walls of the combustion chamber for such installations, it is necessary to be careful that harmful substances, both during the combustion of the channel gas and during the combustion of residues from the channeling process, can at least partially leave the used installation for combustion and enter the environment (air, special disposal , land, water). This is true, for example, not only for organic harmful substances, but also for oxides of heavy materials, such as oxides of cadmium, zinc, mercury and thallium. Nothing was said about the use of waste after the combustion chamber.

 Also known is a method and apparatus for heat treatment of waste [2] The installation is suitable only for household waste. Complete burning of waste, the calorific value of which is very small, is not possible with the help of this installation. In addition, all recyclable waste is first charged to the semi-coking reactor, so a relatively large semi-coking reactor is required.

 The goal of any waste treatment should always be to reduce, as soon as possible, pollution by waste from any kind of environment.

 Especially when waste with a low calorific value should be processed, self-contained and complete burning of the waste is not guaranteed in known installations, so that usually unburned harmful substances remain.

 The basis of the invention is the task of performing an installation for the thermal treatment of wastes of the named type, especially for treating wastes with low calorific value, which largely eliminates organic and inorganic harmful substances and that the minimum amount of waste that is not used in the future is to be disposed of. There should also be minimal investment, and the overall efficiency of the installation should be maximum. Further, an economical method must be developed for waste treatment.

 In accordance with the invention, the task of creating an appropriate installation is achieved due to the fact that the combustion chamber is additionally equipped with pipelines for direct supply of pulverized dry and / or liquid waste and a pipe for supplying additional fuel.

 In accordance with the invention, the task of developing an appropriate method is achieved due to the fact that the waste is contaminated land, and / or contaminated gross waste, and / or pasty waste, and / or liquid waste, and / or inert waste, and dusty is additionally provided for incineration dry waste and / or liquid waste.

 By using the apparatus and method in accordance with the invention, the advantage is achieved that even waste with a low calorific value, which in addition may contain organic and inorganic harmful substances, is treated in such a way that as little precipitation is formed that is not suitable for further use. In addition, the installation investment costs are relatively small.

 A device for separating residues, attached to a device for unloading residues from the reactor to produce channel gas, provides separation or special sieving of residues from channeling into a coarse fraction, for example, with a particle size of more than 5 mm, and into a small fraction, for example, with particles, smaller than 5 mm. Fine dust generated in the channel gas channel together with the channel gas is fed directly into the combustion chamber. By separating (for example, sieving) residues from channeling, non-combustible components (such as stones, glass breaks, porcelain residues, metal parts), i.e. a large fraction, are separated from substantially combustible components (wire coke, for example, wood, plastic parts, fibers, but also finely dispersed inert substances, such as glass and stone dust, etc.), that is, a fine fraction. This further addition to the channeling process in the reactor for producing channel gas, the separation of non-combustible substances from substances still burnt in the future creates the premise that the latter can be burned out without the problem of emission of harmful gases. At the same time, it is achieved that non-combustible metals, stones, glasses removed from the reactor to produce channel gas will not be oxidized to a large extent, that is, they remain suitable for further processing.

 Finally, due to the isolated mixture of residues from channeling and small inert particles, additional heat is obtained during combustion.

 With a rational execution of the invention, in a device for separating residues, first of all, small particles can be separated from large ones by sieving and / or by blowing (pneumatic separation). In this case, heavier large particles remain in place; thus, they can be separated separately. This type of separation is reliable and can be done with not too much cost. For blowing, flue gas is used from the flue gas line with increasing pressure or air.

 The combustion chamber emitting molten slag is a melting combustion chamber, for example of the conventional type. Burned substances are supplied to it by pipelines or other transport devices.

In a further rational embodiment of the invention, the combustion chamber emitting molten slag can be provided in the form of a high-temperature combustion chamber, i.e. with a wall temperature above 1200 ° C, and also be operated at this temperature. At such a high temperature, all organic harmful substances decompose, turn into a molten state and can be discharged. Fine-dispersed inert materials are preferably fed to the high-temperature combustion chamber along with residues from channeling and channel gas. Last, dry waste and liquid waste, such as chemical solutions, can be directly fed into the combustion chamber. Also, additional fuel, such as liquid fuel or natural gas, may be supplied to the burner of the combustion chamber if it is not enough to burn the calorific value of the waste. The combustion chamber for channel gas and the combustion chamber for residual channeling can also be different. Both chambers can be made as melting combustion chambers. Hazardous substances still present in the flue gas can be emitted in a conventional flue gas treatment plant.

 The proposed installation and method are distinguished by their extreme opportunities for the sale of waste in the material and energy sense. With less residual harmful gas emissions, the waste treatment reduced in terms of environmental hazard is obtained. Halogenated hydrocarbons, such as dioxins and furans and other organic harmful substances contained in channel gas, are neutralized. Solid residues from channeling, studies have shown, are largely free of organic harmful substances; but they contain heavy metals like cadmium, mercury, which in the usual way cannot be buried without disposal. Organic substances present in the residues from channeling or directly supplied in liquid form to the combustion chamber are burned and thereby eliminated.

 The fireproof components of the residues from channeling are partially separated in a large fraction and can be used in the future under certain conditions; they are partially converted to molten slag. After cooling, the slag is in a glazed form. Substances contained in the slag, such as heavy metals, are securely locked; they, for example, cannot leach. As an additional advantage, it is necessary to point out the occurrence of only a small amount of gaseous waste and the good thermal use of the source waste.

 The term "waste" in this case refers to such waste and waste mixtures, which, in contrast to household waste, are generally designated as special waste, such as contaminated land, which can be contaminated with organic or inorganic harmful substances, pasty and liquid waste, for example, used oils, infected wood, waste from traffic accidents, sludge of any kind, plastics and mixtures of plastics.

The term "channeling" means the thermal decomposition of primarily organic substances at elevated temperatures, for example 300-700 o C. Channelization is carried out with a lack of oxygen.

 The drawing shows a schematic installation for heat treatment of waste according to the invention.

 The device and the interaction of the individual components of the installation for heat treatment of waste.

Pos. 1 generally designates a device for supplying or supplying solid and pasty waste to the channeling reactor 2. Such solid waste can be, for example, contaminated land, which must be decontaminated. Infection can occur due to heavy metals, organic substances of any kind or due to inorganic substances containing HCl or CH - . Land may be collected in industrial areas or may be contaminated by traffic accidents. To this contaminated land, pasty waste, for example, can be added before the channelization reactor 2. Reactor 2 in the exemplary embodiment is a conventional channeling drum operating at a temperature of 300 to 700 ° C., which is operated to a large extent by cutting off oxygen access and, along with volatile channel gas, produces solid residue from channeling. An unloading device is connected to the drum 2 from the outlet or take-off side, equipped with a pipe 4 for removing channel gas and a transport device or pipe 5 for carrying out solid residues of channeling. Connected to the pipe 4 for outputting the channel gas of the device 3 for unloading, the channel 6 of the channel gas is connected to the burner 7 of the high-temperature combustion chamber 8.

The high temperature combustion chamber 8 is designed for temperatures above 1200 o C. It is not cooled at a certain length. Thus, it is guaranteed that the residence time of the introduced gas in the temperature zone above 1000 o C (also on the walls) will be long enough to carry out thermal decomposition of organic substances. The residence time is approximately 1 to 5 seconds after the burning of the flame. The combustion chamber 8 is equipped with thermal insulation 9. A steam generator-utilizer 11, a dust removal filter 12, a device 13 for cleaning flue gases and a chimney 14 are connected to the flue gas pipe 10 leaving the high-temperature combustion chamber 8 the high temperature combustion chamber 8 is supplied with fresh air through a pipe 15, which is fed with fresh air by means of an air compressor 16 from the air intake 15a. This fresh air can also be heated (not shown).

 As shown in the drawing, after the dust filter 12 on the pipe 10 at point 17, a branch 18 is provided to which a line 19 is connected for recirculation of flue gases. On line 19, flue gas, which is already cooled and dust free, can be supplied to the burner 7 of the high-temperature combustion chamber 8 in order to control the temperature. Alternatively or additionally, it can also be blown into its flame.

 The steam recovery boiler 11 cools the flue gas and gives off the heat for further use, for example, a steam power plant, or heat recovery plants, or steam consumers for technological processes.

 The pipeline 5 of the device 3 for the removal of residual channeling leads to the installation 20 for the separation of residual channeling. In this device 20, which may be in the form of screens or air separation, the discharged channeling residue is divided into a fine fraction and a coarse fraction. The fraction of fine particles includes, for example, combustible fine dust and fine inert particles. The coarse fraction consists mainly of non-combustible components like stones, glass breaks, porcelain residues and metal parts.

 The residual separation device 20 has two discharge pipes, namely a pipe 21 for small particles and a pipe 22 for large particles, for example, having a diameter greater than 5 mm. The pipe 21 leads to a grinding device 23. From here, the highway 24a leads to an intermediate hopper (intermediate storage) 25 for crushed fine particles. Highway 24b exits from the intermediate hopper 25. Here, this line 24b leads directly to the combination burner 7 for burning gas and pulverized fuel. In addition, it in the form of (indicated by strokes) pipe 24c can lead to a separate burner 7a for pulverized fuel. In the pipe 24b there is a metering device 26, for example an adjustable vehicle, in order to regulate the temperature or heat output of the combustion chamber 8.

 Highway 22 for specific heavy coarse particles leads to container 27. It mainly collects stones, glass, ceramics, as well as metal parts. These materials may be supplied for future reference. Highway 22 may also lead to a metal extraction device (not shown) in which metal objects are separated from stones, as well as from glass or ceramic objects.

 Fly ash (dust) falling in the dust filter 12 and, under certain conditions, also in the steam generator-utilizer 11, can be blown along the return line 28 for ash into the high-temperature combustion chamber 8 or along the outlined line 29 from the line 28 can return to the channeling drum 2 . For injection, the return line 28 for ash through the valve 30 and through the compressor 31, which increases the pressure, is connected at the outlet of the dust filter 12 to the flue gas line 10.

 Liquid waste, such as used oils and transformer oils, can be supplied directly to the burner 7. The supply line 32 serves for this. Dusty and dry waste, such as powdered chemicals, can be directly fed through the supply line 33 to the line 24b, which usually ends in the burner. If the supplied materials are not sufficient for the burner 7 to work, additional fuel, such as liquid fuel or natural gas, is supplied to the burner 7 along the supply line 34.

 The high temperature combustion chamber 8 is equipped with an outlet 35 for slag. Through this outlet, molten slag is discharged into a container 36 of water. Here he freezes in vitreous granulate.

When heated in the drum 2 for channeling, the waste at a temperature of from 300 to 600 o C is partially gasified. The resulting channel gas and part of the resulting dust are directed through the remote or exhaust channel pipe 4 of the external device 3 and along the line 6 for channel gas to the burner 7 of the high-temperature combustion chamber 8. There, the channel gas containing organic and inorganic harmful substances is burned with fresh air supplied from air compressor 16 on the line 15 of fresh air, that is, with an excess of oxygen or air. The temperature in the high-temperature combustion chamber 8 remains above 1200 o C. At this high temperature, all long molecular chains of organic harmful substances are destroyed. In order to keep the gases long and stable at a temperature level of about 1200 ° C., in the embodiment, the high-temperature combustion chamber 8 is not cooled over a certain length. Temperature control at a set value above 1200 o C is carried out using a regulator (not shown), for example, by means of controlled additional dosing of residues from channeling, due to the more or less intensive blowing of the cooled flue gas, which branches off after the waste heat generator 11, and in the example shown versions even behind the dust filter 12, and along the line 19 for recirculation (return) of flue gas is supplied to the burner 7; or by burning additional fuel or liquid waste with a high calorific value, for example, used oil, etc.

 As already mentioned, the cooled flue gas can be introduced directly into the burner 7 of the high-temperature combustion chamber 8, so as to affect the temperature of the combustion chamber or flame. But it can also be blown near the flame. In the steam generator-utilizer 11, water vapor is generated on the heating surface 37, which can be used as technical steam (steam used in technological processes) for internal and / or external consumers.

 To transport gas to the flue gas return line 19 and to the fresh air line 15, gas compressors 38 or 16 are built in.

 Solid channeling residues discharged by the external device 3 from the channeling drum 2 are divided in the device 20 for separating the residues into a fraction of fine particles and a fraction of large particles. Small particles enter the grinding device 23. This device is most often a roll crusher.

 The return of fly ash discharged from the dust filter 12 and the steam generator-utilizer 11 to the high temperature combustion chamber 8 is carried out along the ash return line 28 so that the fly ash therein is melted and mixed with the slag of the high temperature combustion chamber 8. In the same way, when returning the fly ash ash at outlet 29 into the drum 2 of channeling, fly ash is mixed with residues and again fed with channel dust or finely divided residues into the combustion chamber 8. Slag is discharged from outlet 35 at the lower end of the high temperature urn combustion chamber 8 and is rapidly cooled in a water tank 36 in the system deslagging wet method. Granulate appears in the water bath, which can be used for road construction and similar purposes.

 Due to the separation of large particles of the channeling residue, especially all metal objects, from small particles, that is, from combustible components and finely divided inert particles, before entering into the high-temperature combustion chamber 8, the following is achieved: detachable large particles at this installation site are in a hygienically perfect and precisely sorted condition and therefore are best suited for long intermediate storage and further transportation. Moreover, the non-oxidized state of the metal is especially rational for further processing. At the same time, stones, ceramic objects and glass breakage can be separated in the device 20 for separating residues and then be used further or buried without problems. This again brings with it the fact that the costs of the device 23 for grinding fine particles are very small.

 Heavy metals, such as mercury and cadmium, which already evaporate at the channeling temperature and predominantly precipitate on the channeling residue, evaporate and oxidize in the high-temperature combustion chamber 8 during the combustion of fine dust. These heavy metal oxides are partially liberated, for example cadmium and zinc oxides, with volatile dust in the form of solids in plants 11 and 12 and partially, for example mercury oxide, in the separated solid substance of the flue gas treatment plant 13.

 By returning the volatile dust along line 28 to the high-temperature combustion chamber 8, these heavy metals are recycled until they are bound in slags or removed with the solid material released during the flue gas treatment.

 The flue gas nitrogen oxide in the waste heat treatment plant is kept low. This is due to the mixing of cold flue gas directly in the burner 7 or near the burner 7 in the high-temperature combustion chamber 8 (flue gas recirculation).

Claims (19)

 1. Installation for heat treatment of waste containing a channeling reactor for processing waste into channel gas and a solid residue, a device connected to a channeling channel for removal and separation of processed products into channel gas containing fine dust, and a solid residue, a device for separating solid residue into large and fine particles, a pipeline for supplying small particles to a combustion chamber operating with an excess of oxygen, a pipeline for supplying channel gas containing fine dust to the combustion chamber, moreover, the combustion chamber is equipped with a pipe for discharging molten slag for cooling and a flue gas pipe connecting the combustion chamber with the chimney, characterized in that the combustion chamber is additionally equipped with pipelines for direct supply of pulverized dry and / or liquid waste and a pipe for supplying additional fuel.
 2. The installation according to claim 1, characterized in that it is equipped with a device for supplying and loading contaminated land and / or infected large waste and / or paste-like waste and / or inert waste, mainly dust, into the channeling reactor.
 3. Installation according to claims 1 and 2, characterized in that it is equipped with a device for grinding small particles, connected by pipelines to a device for separating a solid residue into large and small particles, and a combustion chamber.
4. Installation according to claims 1 to 3, characterized in that the combustion chamber is designed to operate at temperatures above 1200 o C. and contains a burner to maintain the temperature of the supplied gases above 1200 o C.
 5. Installation according to claims 1 to 4, characterized in that an intermediate hopper for intermediate storage of small particles is attached to the pipelines connecting the device for separating the solid residue into large and small particles with the combustion chamber.
 6. Installation according to claim 5, characterized in that it is additionally equipped with a steam generator-utilizer and a metering device for controlling the supply of small particles to the combustion chamber and the heat output of the steam generator-utilizer.
 7. Installation according to claims 1 to 6, characterized in that the combustion chamber is provided with an additional pipeline for returning to the combustion chamber the volatile dust emitted from the flue gas.
 8. Installation according to claims 1 to 7, characterized in that the combustion chamber is equipped with a flue gas exhaust pipe and a flue gas recirculation pipe for supplying flue gas to the combustion chamber for temperature control.
 9. Installation according to claims 1 to 8, characterized in that the combustion chamber is partially cooled.
 10. Installation according to claims 1 to 9, characterized in that it is additionally equipped with a water bath for granulating the slag discharged from the combustion chamber.
 11. Installation according to claims 9 and 10, characterized in that the combustion chamber is made with thermal insulation in the form of an uncooled lining.
12. Installation for heat treatment of waste, including a channeling reactor for processing waste into channel gas and a solid residue at a temperature of the order of 300,700 ° C, a device connected to a channeling channel for removal and separation of processed products into channel gas containing fine dust, and a solid residue, a chamber combustion, operating at a temperature above 1200 o C and equipped with a pipe for removal of molten slag for cooling, a device for separating the solid residue into large and small particles, connected to a trio for removal and separation of processed products and through a device for grinding small particles with a combustion chamber, characterized in that the combustion chamber is additionally equipped with pipelines for direct supply of dry and / or liquid waste and a pipe for additional fuel supplied to maintain the temperature level in the combustion chamber providing thermal destruction of harmful organic substances in the supplied gases.
13. The method of heat treatment of waste, which consists in the fact that the waste is subjected to channeling at a temperature of the order of 300 700 o With a lack of oxygen to produce channel gas and a solid residue, the solid residue is divided into small and large particles, then small particles and channel gas are burned with the formation of smoke gas and molten slag, and large particles are removed, characterized in that the waste is contaminated earth, and / or infected waste from large particles, and / or pasty waste, and / or liquid waste, and / or inert e waste, and for burning additionally pulverized dry and / or liquid waste is supplied.
 14. The method according to item 13, wherein the small particles are further crushed.
 15. The method according to PP. 13 and 14, characterized in that the fine particles and / or pulverized, dry waste and / or liquid waste and channel gas are burned together with additional fuel.
 16. The method according to PP.13 to 15, characterized in that dust is removed from the flue gas, which is melted in the slag.
 17. The method according to PP.13 to 16, characterized in that to regulate the temperature of the combusted channel gas mixed with purified flue gas.
 18. The method according to PP.13 to 17, characterized in that the fine particles are stored temporarily before combustion.
 19. The method according to claims 13 to 18, characterized in that volatile dust enriched with heavy metal oxides is isolated from flue gas, and heavy metal oxides are used as raw material.
SU5010962 1991-03-06 1992-03-05 Installation and method for heat treatment of wastes RU2088631C1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4107200A DE4107200A1 (en) 1991-03-06 1991-03-06 Thermal redn. of industrial waste - by removing organic and inorganic material using low temp. distn. reactor, and treating waste material of low heat value
DEP4107200.6 1991-03-06

Publications (1)

Publication Number Publication Date
RU2088631C1 true RU2088631C1 (en) 1997-08-27

Family

ID=6426624

Family Applications (1)

Application Number Title Priority Date Filing Date
SU5010962 RU2088631C1 (en) 1991-03-06 1992-03-05 Installation and method for heat treatment of wastes

Country Status (7)

Country Link
CZ (1) CZ283211B6 (en)
DE (1) DE4107200A1 (en)
HU (1) HU216119B (en)
PL (1) PL167590B1 (en)
RU (1) RU2088631C1 (en)
SK (1) SK279573B6 (en)
TW (1) TW223678B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2522597C2 (en) * 2012-07-10 2014-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский университет "МЭИ" Combustion of mechanically dewatered pasty sediments of effluents
RU2632444C1 (en) * 2017-01-25 2017-10-04 Общество с ограниченной ответственностью "ЭКОС ИНВЕСТ" System and method of processing wastewater sludge

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327320C2 (en) * 1993-08-13 2003-11-06 Siemens Ag Thermal waste disposal facility
DE4435349C1 (en) * 1994-09-21 1996-05-02 Noell En Und Entsorgungstechni Destruction of pollutants and gasifying of waste in a fluidised bed
DE4441393A1 (en) * 1994-11-21 1996-05-23 Lehmann Maschbau Gmbh Disposing of sewage sludge from municipal and industrial sewage treatment
DE4443482A1 (en) * 1994-12-07 1996-06-13 Kloeckner Humboldt Deutz Ag Process for prodn. of slag for construction from sewage sludge
DE4443481A1 (en) * 1994-12-07 1996-06-13 Kloeckner Humboldt Deutz Ag Slag prodn. from sewage sludge for use in construction
DE4446745A1 (en) * 1994-12-24 1996-06-27 Gutehoffnungshuette Man Plant for the smoldering of waste and contaminated substances
DE19510390A1 (en) * 1995-03-22 1996-09-26 Siemens Ag Carbonising waste to form e.g. pyrolysis prod.
DE19539946C2 (en) * 1995-10-26 2002-03-28 Linde Gas Ag Method and device for the integrated disposal of filter dusts in thermal treatment plants
DE19539949C2 (en) * 1995-10-26 2002-10-02 Linde Ag Process and device for the simultaneous disposal of fine-grained bulk materials and other waste in thermal waste treatment plants
DE19714218C1 (en) * 1997-04-07 1998-04-09 Karlsruhe Forschzent Filter-dust-bonding system in slag
EP0908674A1 (en) * 1997-10-13 1999-04-14 Asea Brown Boveri AG Process for the combustion of refuse in an incinerator and for processing the residues from the incineration
DE19925565A1 (en) * 1999-06-04 2000-12-07 Ingbuero Fuer Abflus Klaeranla Electricity generating assembly using fuel combustion
JP2003004211A (en) * 2001-04-19 2003-01-08 Ebara Corp Equipment and method for treating waste
ITMI20011981A1 (en) * 2001-09-24 2003-03-24 Francesco Goggi waste treatment plant by pyrolysis and to produce energy by such a treatment
DE102004026646B4 (en) * 2004-06-01 2007-12-13 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Process for the thermal disposal of pollutant-containing substances
US8475636B2 (en) 2008-11-07 2013-07-02 Novellus Systems, Inc. Method and apparatus for electroplating
US9822461B2 (en) 2006-08-16 2017-11-21 Novellus Systems, Inc. Dynamic current distribution control apparatus and method for wafer electroplating
WO2008127557A1 (en) * 2007-04-12 2008-10-23 Cefco, Llc Process and apparatus for carbon capture and elimination of multi-pollutants in flue gas from hydrocarbon fuel sources and recovery of multiple by-products
DE102007032013B4 (en) 2007-07-10 2012-05-31 Peter Brinkhege Apparatus for the treatment and disposal of sewage sludge
EP2375153B1 (en) 2010-04-12 2018-09-26 Heiner Zwahr Processing of flue ash
TWI550139B (en) 2011-04-04 2016-09-21 諾菲勒斯系統公司 Electroplating apparatus for tailored uniformity profile
CZ306173B6 (en) * 2012-06-28 2016-09-07 Polycomp, A.S. Line for the treatment of waste containing predominantly plastics and cellulose and method of treating waste on that line
US9909228B2 (en) 2012-11-27 2018-03-06 Lam Research Corporation Method and apparatus for dynamic current distribution control during electroplating
US9670588B2 (en) 2013-05-01 2017-06-06 Lam Research Corporation Anisotropic high resistance ionic current source (AHRICS)
FR3012053B1 (en) * 2013-10-17 2017-07-21 Suez Environnement METHOD AND UNIT FOR ENERGY ENHANCING WASTE
CN104028546B (en) * 2014-06-24 2017-01-18 济南英威特环保科技有限公司 Method for circularly processing garbage mountain
US9752248B2 (en) 2014-12-19 2017-09-05 Lam Research Corporation Methods and apparatuses for dynamically tunable wafer-edge electroplating
US9567685B2 (en) 2015-01-22 2017-02-14 Lam Research Corporation Apparatus and method for dynamic control of plated uniformity with the use of remote electric current
US9816194B2 (en) 2015-03-19 2017-11-14 Lam Research Corporation Control of electrolyte flow dynamics for uniform electroplating
US10014170B2 (en) 2015-05-14 2018-07-03 Lam Research Corporation Apparatus and method for electrodeposition of metals with the use of an ionically resistive ionically permeable element having spatially tailored resistivity
CN109834108B (en) * 2019-03-06 2020-04-28 江苏尚美环保科技有限公司 Diversified water-sinking type treatment equipment for chemical experiment medicine waste
RU2708595C1 (en) * 2019-04-12 2019-12-09 Николай Павлович Хрипач Method of complex treatment of sewage sludge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626106A1 (en) * 1986-08-01 1988-02-11 Babcock Anlagen Ag Device for pyrolysis of waste
DE3811820A1 (en) * 1987-08-03 1989-02-16 Siemens Ag METHOD AND SYSTEM FOR THERMAL WASTE DISPOSAL
DE3733078C2 (en) * 1987-09-30 1996-10-02 Siemens Ag Thermal waste disposal plant
AT68814T (en) * 1988-05-04 1991-11-15 Siemens Ag Plant for the disposal of waste.
EP0347808B1 (en) * 1988-06-21 1992-08-26 Max Dipl.-Ing. Aicher Process for the treatment of sewage sludge
DE4103715A1 (en) * 1990-02-12 1991-07-11 Annerose Kutzer Plant for treating household and industrial waste - has bunker for supplying waste, fermentation reactor, carbonisation drum and second fermentation reactor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Патент Великобритании N 1562492, кл. C 10 B 53/00, 1980. 2. Заявка ФРГ N 3811820, кл. C 10 J 3/64, 1989. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2522597C2 (en) * 2012-07-10 2014-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский университет "МЭИ" Combustion of mechanically dewatered pasty sediments of effluents
RU2632444C1 (en) * 2017-01-25 2017-10-04 Общество с ограниченной ответственностью "ЭКОС ИНВЕСТ" System and method of processing wastewater sludge

Also Published As

Publication number Publication date
CZ283211B6 (en) 1998-02-18
HU216119B (en) 1999-04-28
PL293647A1 (en) 1992-09-07
HUT65181A (en) 1994-05-02
DE4107200A1 (en) 1992-09-10
TW223678B (en) 1994-05-11
HU9200780D0 (en) 1992-05-28
CS66192A3 (en) 1992-09-16
SK279573B6 (en) 1999-01-11
PL167590B1 (en) 1995-09-30

Similar Documents

Publication Publication Date Title
US20180023011A1 (en) Two-stage plasma process for converting waste into fuel gas and apparatus therefor
US7465843B2 (en) Recycling system for a waste processing plant
ES2686868T3 (en) A synthetic gas production system
CN101427073B (en) Method and apparatus of treating waste
AT402964B (en) Method for the use of disposal goods
US4678514A (en) Process for the disposal of combustible refuses
KR101170086B1 (en) Method and apparatus for treating waste
US4922841A (en) Method and apparatus for using hazardous waste to form non-hazardous aggregate
EP0515792B1 (en) Method for treating residues from a waste incineration plant and waste incineration plant for carrying out said method
US3779182A (en) Refuse converting method and apparatus utilizing long arc column forming plasma torches
US3794565A (en) Apparatus for processing heat-decomposable non-gaseous materials
EP0187442B1 (en) Apparatus and method for disposal of waste material
CN101963358B (en) Combined treatment method for oilfield solid waste
DE3724563C2 (en)
US3697256A (en) Method of incinerating refuse
DE69912809T2 (en) Waste combustion with closed circuit
AU628813B2 (en) Method and apparatus for stripping volatile organic compounds from solid materials
US4984983A (en) Method of cofiring hazardous waste in industrial rotary kilns
JP2011513516A (en) Gasification system with processing raw material / char conversion and gas reforming
JP4599127B2 (en) Processing method and apparatus for waste recycling
CA1318278C (en) Method and plant for thermal waste disposal
US5022329A (en) Cyclone furnace for hazardous waste incineration and ash vitrification
TW510957B (en) Waste treatment apparatus and method
US5052312A (en) Cyclone furnace for hazardous waste incineration and ash vitrification
EP0545241A1 (en) Process for thermic valorisation of waste materials