CN110494535A - Compress the device and method and application thereof of carbonaceous input material - Google Patents

Compress the device and method and application thereof of carbonaceous input material Download PDF

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Publication number
CN110494535A
CN110494535A CN201880024812.6A CN201880024812A CN110494535A CN 110494535 A CN110494535 A CN 110494535A CN 201880024812 A CN201880024812 A CN 201880024812A CN 110494535 A CN110494535 A CN 110494535A
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China
Prior art keywords
briquetting
raw material
compacting
coal
coke
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CN201880024812.6A
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Inventor
罗纳德·吉姆
乌韦·奇尔纳
马蒂亚斯·舍勒
马蒂亚斯·施珀特勒
法比安·格拉
乔安娜·库恩-加齐克
汉斯-沃纳·施罗德
沃尔克·赫德根
弗兰兹·费泽
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ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
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ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
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Publication of CN110494535A publication Critical patent/CN110494535A/en
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/02Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/04Raw material of mineral origin to be used; Pretreatment thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B11/00Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22Extrusion presses; Dies therefor
    • B30B11/26Extrusion presses; Dies therefor using press rams
    • B30B11/265Extrusion presses; Dies therefor using press rams with precompression means
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS 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
    • C10B53/08Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/02Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06Methods of shaping, e.g. pelletizing or briquetting
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/02Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/14Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/02Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/14Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
    • C10L5/20Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders with sulfite lye
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/02Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34Other details of the shaped fuels, e.g. briquettes
    • C10L5/36Shape
    • C10L5/361Briquettes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/02Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34Other details of the shaped fuels, e.g. briquettes
    • C10L5/36Shape
    • C10L5/363Pellets or granulates
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/40Solid fuels essentially based on materials of non-mineral origin
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08Drying or removing water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/30Pressing, compressing or compacting

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Coke Industry (AREA)

Abstract

The present invention relates to one kind for being pressed into the die apparatus (70) of briquetting for solid, especially carbon raw material, which has for the equipment for compressing raw material;Wherein die apparatus includes the first agglomeration step (70.1) with perforated plate roller mill (79), equipment for compression includes formed channel press machine (73), the formed channel press machine has at least one compacting pressure head (75) and corresponding compacting channel (73.1) and the downstream for being located at perforated plate roller mill, as the second agglomeration step (70.2), and perforated plate roller mill (79) includes the mould (79.1) with multiple compactings access (79.2), the diameter of each compacting access is up to 6mm or between 1 and 6mm, especially less than 3mm.The invention further relates to a kind of compression solid especially purposes of the method for carbon raw material and individual equipment component in two stages agglomeration.

Description

Compress the device and method and application thereof of carbonaceous input material
Technical field
The present invention relates to the device and method for compressing carbon raw material, and further relate to certain produced in this case The purposes of a little parts of appliance or green compact.The present invention relates more specifically to the device and method that green compact is produced from raw material, so far Device and method be not possible to the basis of standard for coking, or device and method so far do not provide and make us full The final products of meaning.In particular it relates to for providing unconventional raw material, set in particular for coking in vertical coke oven Standby and method.In particular it relates to according to the device and method of the preamble of each independent claims.The present invention into One step be related to especially with the related separate part of offer of the green compact (or briquetting) that is made of these alternative materials or equipment Purposes.
Background technique
For national economy most of on our earth, coke and carbon raw material or carbon raw material are important substantially Material represents valuable material in itself in the form of its is existing, and present circumstances is also so and in the future such.So far Until the present, coking mainly is carried out to the bituminous coal (referred to as rich coal) with high agglomeration ability.However, certain form of coke can be short Time internal world becomes rare in the market.Specifically must it is contemplated that be very suitable to the coking coal of coking availability will under Drop, as a result, the coal or other carbon sources high using caking capacity difference or swellability may be needed, also in the future in particular for production Blast-furnace coke.Due to various reasons, the political pressure especially on the territory including Europe, future will need to substitute Product, especially for traditional bituminous coal, especially because in decades to come in, burning raw material may still extremely as the energy It closes important.In Europe, since 2014, conventional coking coal has been considered as important raw material.But with other important raw materials It compares, it is still endowed maximum economic significance.In conclusion herein it will be apparent that on the one hand there are contradictions, it is another There are chances or motivation to be advantageously carried out further Optimized Measures since conventional coking process for aspect.
Currently, energy transition is only carried out in the rich countries of intense industrialization deeper into and developing country is according to very For many years or the prior art decades ago will still rely on the traditional raw material of burning following many years.It is even big in such as Australia Highly developed country as Leah currently has a large amount of investment activity more modern to be converted to especially in Queensland state Coke oven technology and in the future continue can largely upgrade raw material at home.Therefore, for allowing to provide production Or it can be used for the new machine of the certain form of coke of the raw material pedigree of coke production using coke or with restriction characteristic or extension The device and method of meeting have great interest and high-tech demand.Certainly, it is also possible to avoid certain raw material through these means The needs of long-distance transportation in the world.
One specific technological challenge is raw by the original coked material (including especially lignite) of weak agglomeration and non-agglomerated Produce premium coke.In Europe, such raw material, which is more widely used, to be aroused people's interest, especially because with such as cigarette The situation of coal is compared, and still can exploit such raw material under more acceptable cost scene.It is particularly related to the challenge, The challenge is becoming more and more prominent recently, that is, so that can also utilize unconventional raw material.Especially make us feeling in this context Interest is the purposes with the raw material of high sulfur content, especially because a variety of applications can become obviously, this allows just by institute The sulphur obtained is used as by-product.
It has been proved that in many cases, only raw material or raw material being compressed in a specific way in advance and processing (example Such as, by raw material briquetting/be pressed into coal briquette), coal could successful conversion be premium coke.Briquetting especially needs to bear in coke oven chambers High pressure in bed, these height are several meters, and especially in large-scale vertical coke oven, briquetting should not be decomposed into small as far as possible Grain.Therefore, the major criterion of advantageous technological design is also likely to be the accessible intensity of raw material, especially in vertical coke In furnace for use.Therefore, when finding new alternative materials and new process, interested problem first is that form processing is asked Topic, should ideally provide alternative materials, and how to carry out related processing in this form.
As described above, the coke oven for producing coke can use the form of so-called vertical coke oven.Vertical coke oven is from upper Side is packed into raw material briquetting or coal briquette.The operation height of vertical coke oven may be very high, such as in the range of 30 to 40m.Example Such as, briquetting is placed on above coke oven using crane, and passes through coking axis (coke oven chambers) sliding especially by gravity, Especially pass through the time of a few hours, such as 12 or 15 hours, the time is corresponding to the time needed for converting the feedstock to coke. In the process, briquetting can undergo temperature change, especially most from the initial temperature lower than 300 DEG C to 900 DEG C to 1100 DEG C Finishing temperature.Coke oven generally includes the component of two to ten coke oven chambers, to form so-called furnace group.The axis of each coke oven chambers Height especially can for 3.5 arrive 10m, width especially can be 150 to 600mm.It can be seen that in coking, briquetting Bear high frictional force and pressure.Therefore, the intensity of briquetting is as high as possible.In addition, it is intended that becoming the volume in briquetting Change and " effective " mass transfer is possibly realized.Therefore, certain porosity is also advantage.
In order to provide briquetting, raw material can be crushed in advance, especially crushed in hammer-mill, more particularly crushed To 0 to 1mm granular size.Next, usually briquetting is compacted in press by compressed granulate, and so far, In many cases, briquetting geometry is proved to be advantageous in a manner of the elongate pieces with optional fillet or rounded edges 's.The briquetting of ellipse produces well known to being also specifically by roll squeezer.
In order to increase agglomeration ability (particle cohesive force during and after compression) and/or improve the attached of the raw material crushed Poly- performance can add water or steam.But once briquetting is by coking, high-moisture may generate not the intensity of briquetting Benefit influence, as a result, especially in the lower region of vertical coke oven (maximum power or load effect are on briquetting) briquetting meeting Avalanche simultaneously damages coking.
Actually it has been shown that in the whole process, will appear difficulty in different operating procedures, especially working as pressure When the intensity of block is not high enough, the result is that coal/coke briquettes rupture in the bed of coking furnace.Therefore, in many cases, should observe To > 30MPa numerical value as briquetting compression strength lower limit, especially in the case where big/high coke oven chambers.Therefore, when estimating When counting the feasibility of raw material coking, enough compression strength can be considered as one of most important standard.Due to compression strength meeting It is influenced by compressing or compressing, therefore the process has very high meaning.
Especially when the specified moisture content of raw material or briquetting can not be observed with enough accuracy, it may appear that further Difficulty, as a result, during heating, briquetting bears high stress, specifically experience rupture or the disintegration of other forms.On The observation in face show coke oven have efficient operation need as much as possible in the narrow margin of tolerance (especially in compression strength In terms of water content) raw material or briquetting are provided.
From these considerations, it is apparent that when finding new method and apparatus, specifically it is noted that the following: The definition of the specific heating curves of raw material in coke oven chambers;During coking and Raw material processing is specific at raw material during briquetting The definition of technological parameter (especially temperature, duration, pressure), so that the type and volume of counterbalance stream, especially exist In terms of the gas discharged in coking;Using and disposition option.
So far, system it is burnt the gas burner with vertical chamber or in the coking furnace with horizontal chamber into Row.The latter can be divided into two types: (integrated) horizontal coke-oven, have narrow coke oven chambers, and upright indirect heating charges, and So-called " hot (non-) recovery furnace " has the coke oven chambers of arch, lays flat charging in coke oven chambers, at least can also directly add from top Heat.Current hypothesis is that both coking furnaces may be no longer able to sufficiently effective optimize to cope with following raw material Utilizing for task.Seem develop a new concept for the coking furnace of a new generation, especially in face of using together with which The demand of various different materials.Therefore, hereinafter, a kind of new concept is proposed, which grasps for providing for coking The raw material of work, the raw material specifically can be adapted to using (coal) raw material usually used so far.
2012/0317878 A1 of publication US describe it is a kind of using granulation device and briquetting device for providing pressure The method of block.Preferably there is drying unit between them.
Summary of the invention
In conjunction with the purpose then defined below for the present invention, it is advantageous that provide one kind or even unconventional raw material can be made (the especially bituminous coal and/or biomass and/or petroleum coal of lignite and/or weak bonding) coking sets especially in vertical coke oven Standby and method.It is advantageous that handling, providing and/or managing unconventional raw material in such a way, allow to the greatest extent may be used Can by be used for so far conventional raw material (such as conventional bituminous coal briquetting) it is the same or similar in a manner of obtain after utilizing coking The product obtained.
In this case, it is (especially burnt to be provided in particular in a kind of coke oven for iron at least one vertical coke oven chambers Furnace), the coke oven for iron is used for from least one solid material (especially from by lignite, weak caking coal, biomass, stone The group of oil coke charcoal and petroleum coal composition) production coke, the equipment includes at least one briquetting drier, which sets It is set to and thermal conditioning is carried out to the briquetting generated by raw material, and further include at least one coke oven chambers, which is especially pressing It is couple to briquetting drier below block drier and there is heated wall, briquetting drier includes heating equipment and can add therewith The briquetting reservoir of heat, and the briquetting drier is arranged for establishing temperature in briquetting reservoir, and which is pressing Continuously or by stages increased on the conveying direction of block, especially at least two or three temperature levels, range be 60 DEG C extremely 200℃.It has been found that briquetting described herein may be advantageously used in this coke oven for iron.
Raw material specifically may include the entire pedigree of cherry coal, unglazed coal and glossiness lignite and flame coal.Specifically Ground, the lignite that the Rhine, the river Lu Sasi and Indonesia produce have been carried out good result.It has also been found that described herein Device and method be also suitable for lignite and flame coal and petroleum coal using Russia.Based on according to DIN, ASTM and UN- The classification of ECE, raw material specifically may also include following coal type and mud coal, schematically replicate herein.Above and below of the invention Wen Zhong, with reference to German DIN, have already appeared the coal for being particularly suitable for using include the soft brown coal classified in the DIN, it is matt brown Coal, smooth surface lignite and flame coal
Number in upper table is mass percent;About the number of volatile component, measured under the conditions of " waf ", In other words, it is carried out in the state of anhydrous and ashless simultaneously.
The raw material of briquetting drier can be supplied to or briquetting includes or is made up of: specifically there is volatile component The lignite and/or volatile component of >=45 mass percents and water content > 40 mass percents or > 45 mass percents 28 to Weak caking coal within the scope of 45 mass percents or 12 to 22 mass percents.It is available especially high by this raw material The enhancing briquetting of quality.
1.350 kilogram/cubic metre of density based on each briquetting, the bulk density of the indoor briquetting of coke oven can be 650kg/m3To 850kg/m3In the range of.
In this context, one kind is also specifically provided from least one solid material (especially from by lignite, weak bonding Bituminous coal, biomass, petroleum coke and petroleum coal composition group in) production coke method, the raw material with briquette form provide simultaneously And vertical coke oven chambers, especially coking furnace are provided to, especially above-mentioned coke oven for iron, wherein briquetting is first provided to pressure Block drier, then it is carried out according to the forward speed of briquetting according to scheduled temperature curve it is continuous drying, especially by it It dries at least two or three temperature levels (60 DEG C to 200 DEG C), and is subsequently supplied into coke oven chambers.This allows with very accurate Can authorization predrying, pretreatment and slight processing are carried out to briquetting simultaneously.It has been found that briquetting described herein can be with It is advantageously used in this method.
Raw material briquetting is passed through corresponding burnt with regular hour span (such as 4 to 15 hours, especially 6 to 9 hours) Furnace chamber.In this procedure, raw material briquetting especially divide multiple stages from 100 DEG C to 200 DEG C (especially 150 DEG C) initial temperature The final temperature being heated between 900 DEG C to 1100 DEG C.In such a case, it is possible to transverse to two of respective coke room Required heat is generated in channel, these channels can be heated by multiple external burner, and heat can pass through stone material point Next door indirect transfer is into corresponding coke oven chambers.
The type for constituting the coal of briquetting specifically includes (hard and soft) lignite, volatile coal ingredient (vc) >=45 mass hundred Divide ratio, water content > quality 45%.The raw material for being processed into briquetting optionally include volatile component >=28 to 45 mass percents Weak the gluing of (especially bottle coal, bluster coal and flame coal) or volatile component≤22 mass percents (especially forging and meager coal) Tie bituminous coal.The caking property of weak caking coal itself is very low.Previous in hybrid manipulation, weak caking coal can be with adhesive It mixes, therefore increases the adhesiving effect or agglomerated mass of coal particle in briquetting process.
Due to the property of its crucible coke, fatty coal specifically represents a kind of strong binding coal (traditional " coking coal "). In addition, so-called forging coal and bottle coal are also calculated in strong binding coal.In the present specification, the coal of every other type is referred to as weak Binding coal.
It has been found that briquetting can also be made of bituminous coal kind, such as anthracite (vc < 12%), meager coal (12% < vc < 19%), bottle coal (28% < vc < 35%), bluster coal (35% < vc < 45%) or the alternatively mixture of these coals, optionally Also use higher aliphatic (coking) coal (19% < vc < 28%).By these percentages and based on the standard of type of coal, very Extremely can more specifically it be distributed.
Raw material can be particularly ground into perforated plate roller mill especially with 0 to 2mm granularity pellet. It has been found that being especially susceptible to bonding (they are easy agglomeration) by means of pellet/particle that perforated plate roller mill generates, therefore simplify The briquetting process in downstream (compression).The invention purposes and design of perforated plate roller mill will be described in detail later.
After crushing, raw material are compressed.Compression operation (agglomeration) preferably carries out in formed channel press machine. It was found that can realize especially pressure-resistant briquetting, the venturi in a manner of Venturi tube by means of the geometry of channel mould Managing, there is cross section to shrink and flow out the shape that cross section broadens.Other kinds of press can not provide the result of nominal mass.
Furthermore, it has been found that can be obtained if squeezed after raw material is formed in a mold by tapered cross section Obtain extra high briquetting intensity.When subsequent raw material passes through along the outflow section (runout section) to broaden, can obtain Even higher briquetting intensity.The travel segment of contraction is advantageously shorter than outflow section, or the section than broadening with cross section is short.
It has been found that being in flattened cylindrical shape form (discoid, disk either before coking or after coking Shape) briquetting all there is particularly preferred intensity value.Specifically, about heating and coking operation, briquetting diameter and briquetting height Ratio (1 to 5, especially 2 to 3) also provide good result.The diameter of the briquetting is preferably 20mm to 100mm.Briquetting Especially generated by 0 to the coal particle size (pellet) 2mm.
If it find that required intensity can also be realized by using different moulds or different types of press, then Briquetting can also optionally have different geometries, for example, cube, bulk, sheet, mussel shape, cushion, spherical shape or ovum Shape geometry.However, ice hockey shape has obtained optimum efficiency in experiment so far.
It is the parameter of this method below: moulding pressure, pressing time and pressed temperature.Compression specifically 120 to It is carried out under the pressure of 150MPa, especially under the pressure of 140MPa.Compress the specifically temperature between 60 DEG C to 100 DEG C Lower progress.The time of compression specifically up to 15 seconds.
It has been found that the kind of coal described herein can be mixed with coke promoters, to keep coking more efficient and assign Coke product higher quality is given, such as higher intensity or higher reactivity.
According to one embodiment, at least one coke promoters is provided to briquetting process (in compression process), especially In order to improve the efficiency of downstream coking.Coke promoters can select alone or in combination, especially selected from be proved so far with The group for the coke promoters that conventional raw material is used in combination.
It has been found that passing through method described herein, when using lignite as raw material, the carbon content of generated coke C (fixed value) can be improved to 55% or more, therefore, so that this coke is then even directly used in the direct melting of production steel also Former process (the COREX/FINEX technique of PRIMETAL).
It is suppressing with before coking, in single phase or multistage hybrid manipulation, preferably (is gluing raw material and agglomeration Close) and coke promoters mixing, it is suppressed especially for the quality for improving produced coke or the briquetting for promoting weak binding coal kind Process.It is preferred that by this auxiliary agent before briquetting 30 DEG C to 120 DEG C at a temperature of mix.
Auxiliary agent specifically can be selected from the group being made of the following terms: molasses, sulfite solution, sulfuric acid to optional combination Salting liquid, propane bitumen, cellulose fibre, grain (useless cereal), HSC (height conversion seed soaking catalytic cracking) residue, petroleum HSC/ROSE (residual oil supercritical extraction) residue mixed in industry.
In general, to have any different between coke promoters and agglomeration (bonding) auxiliary agent, although for certain raw materials, it can also There can be the auxiliary agent that can be achieved at the same time two kinds of functions.
It has been found that addition water is often unfavorable in the case where coal kind described here.For example, lignite is usual With > 45% water content.In order to ensure the high efficiency in briquetting process, it has been found that observing determining (is not too It is high) water content is meaningful.Particularly, the water content of discovery about 20% is advantageous.Accordingly, it is possible to also will do it preliminary dry It is dry.
Subsequent briquetting process is specifically in 40 DEG C to 90 DEG C, especially 55 DEG C to carrying out within the temperature range of 65 DEG C. This agglomeration mode have in terms of will lead to coal briquette produced high compression strength and wear-resistant strength, especially intensity >= 30MPa。
By means of one or more methods described herein (specific agglomeration technique, especially with gently dried and coking Method combines), the coke or coal for having higher quality relative to raw material can be provided.Even if, can also be in coking Ensure to keep required briquetting shape, especially cylindrical ice hockey shape.In coking, the quality and volume of coal are shunk 40% to 60%, especially 50%, and be also therefore that it obtains the high compressive strength and wear-resistant strength of required > 30MPa (coke strenth (CSR) after especially reacting) and hypoergia, CRI (coke reactivity index) value < 55%.The reactivity The upper limit be necessary because otherwise coal briquette may spontaneous combustion in the presence of air.So far, using described Low grade coal quality is not possible to reach quality level defined in these limiting values at present.Specifically, method so far and Equipment already leads to briquetting rupture, even results in the complete destruction of briquetting shape.The variation of quality and volume especially can be with phase Same ratio occurs.
By means of method of the invention, the shape (ice hockey shape) of briquetting can be kept, as a result, the pressure loss, heat pass Pass, flow distribution and other methods parameter holding can be scheduled.
The object of the present invention is to provide a kind of device and method as characterized above, which also allows very The coking of raw material (especially lignite and/or weak coking bituminous coal or biomass) is advised, and allows to handle original in such a way Material so that: especially for after briquetting coking, will may be implemented in vertical coke oven and keep high-intensitive.The purpose can also To be considered as the purpose for handling, providing and/or managing unconventional raw material in such a way, allow to obtain products therefrom Program is same or similar with the program of conventional raw material (such as conventional bituminous coal briquetting) so far as much as possible.
According to the present invention, at least one above-mentioned mesh is realized by a kind of die apparatus for having formed briquetting for compressing solid , the solid especially carbon raw material, especially selected from by lignite, weak caking coal, biomass, petroleum coke and petroleum coal group At group, the die apparatus has facility for compressing raw material, wherein die apparatus includes having perforated plate roller mill First agglomeration step, the facility for compression include suppressing the formed channel press machine of pressure head at least one and having corresponding The compacting channel of design, and it is located at the downstream of perforated plate roller mill, as second agglomeration step.It is based especially on perforated plate roller Two step agglomeration of grinding machine and downstream formed channel press machine are to provide particularly preferred performance jointly in terms of compressing raw material.Adding The many points of work/compression, method parameter and the characteristic that raw material can be established for example in a manner of relatively easy and is accurate are (such as warm Degree and humidity), such effect be can in the narrow margin of tolerance raw material of predefined compression final response.
Pass through the molding of perforated plate (mould, compacting access), it can be ensured that in terms of the rodability and raw material of raw material High geometrical homogenization and intensity.Two kinds of effects all potentially contribute to the processing needed for carrying out in the second agglomeration step.
Die apparatus is suitable for the two stages agglomeration of raw material, that is, suitable for compressing raw material in the first step, especially obtains Cylindrical pellets, and suitable for the compression second step in compression device.Die apparatus herein may include being used for The equipment that raw material is supplied to compacting pressure head from perforated plate roller mill, wherein perforated plate roller mill is arranged in the upper of supply equipment Trip, it is optionally also square on said device, therefore allow optionally to be supplied during gravity drive.
Agglomeration may include crushing raw coal in crusher, and then crushing and produce intensity in perforated plate roller mill has The green agglomerate (pellet) of limit, specifically when the initial water content of raw material is higher, this be it is possible, then in such as tubular type It is in drier that pellet is dry to required objective water content.
It is according to the present invention by agglomeration there may be the advantages of and overcome difficulty it is specific as follows:
The high-strength coke for being used for blast furnace is provided;
The raising of coke quality especially produces coke independently of by hot wafering lignite with independently of existing method, independent In the coke by the briquetting lignite production by case of wet attrition grinding production, and independently of by by pre- granulated drying brown coal The coke of the briquetting production of coal dust production;
Compared with the conventional method (for example, with liquid, drying is removed by ultra-fine grinding and then the case of wet attrition that crushes is ground Mill is compared), the cost and complexity of device can be reduced;
Can increase so far limited coke strenth (especially by the pressure by pre- granulated drying brown coal dust production In block coke produced).
For various raw materials, between the first agglomeration step (perforated plate roller mill) and the second agglomeration step (compression), do Dry to generate favorable influence, therefore, arrangement each other side by side may be more advantageous than arranging up and down in the same plane.Just For this point, it has also been found that, dry and transfer preferred embodiment can be defined according to the type priority of raw material.
Perforated plate roller mill for being before the compression granulated raw material can be described as improved flat-die press.Perforated plate roller Grinding machine provides raw material in the form processed, this is advantageous compression and desired intensity.Perforated plate roller mill can provide The alternative solution routinely crushed the advantage is that pellet obtained simplifies compression and it is advantageously ensured that the maximum of briquetting is strong The purpose of degree.It has been found that perforated plate roller mill can also particularly provide relatively porous low-density pellet.It can be specifically The another advantage pointed out is also the high fineness of the raw material of relative humidity.By passing through the molding of perforated plate, it may also be ensured that former The high transporting and high uniformity of the geometry of material or pellet.Pipe of the two aspects especially for formed channel press machine Reason has advantageous result again.
With the lignite of drying regime (1/0mm) it is conventional crush on the contrary, perforated plate roller mill allow under moisture state into Row crushes.This not only has the advantage that in terms of dedusting or similar adverse effect.Then addition water may also become extra.So Afterwards, the first step of agglomeration can be carried out in the case where raw material is in " natural " state (having high-intensitive and/or effectively agglomeration).Only with Be possible to carry out the purpose of preliminarily dried afterwards.It, generally can be to avoid the fluctuation of water content in raw material by this method sequence. On the contrary, raw material can be kept continuously drier in mild mode, and this can be such that the stress on material minimizes.
It has been found that allow strong crushing lignite (specifically destroying coal texture/destruction coal) using perforated plate roller mill, So that keeping binding force and carrying out weaker preliminary compression, the preparation process as subsequent compression.
By means of perforated plate roller mill, can be realized with high internal fineness and for example also with advantageous transportation performance (low dust load;In other words particle size music score such as 2/0.1mm is greater than 0.1mm and less than the pellet or so-called of 2mm) Second particle (primary green compact).
According to an exemplary embodiment, perforated plate roller mill can couple/be coupled to formed channel press machine.This can be with By crushing/granulation in perforated plate roller mill and by the drying of pellet, compression/briquetting and it is advanced through coking/coke The dry briquetting of furnace chamber promotes the management of briquetting on the operating path of raw material.
According to an exemplary embodiment, compacting access at least partly structure at least in the accordingly first segment of compacting access It makes and suppresses access for cylinder.This, which allows to adjust, applies pressure to be compressed.It also allows advantageous forming.
According to an exemplary embodiment, compacting access is divided at least two sections, including the first segment with constant diameter, And further include second segment, which has a taper, the taper especially to broaden, more particularly, widen into the 1.5 of diameter to 2 times of taper.This provides advantageous processing, especially to the mild processing of raw material, so that raw material is the medium compression the case where Under remain dimensionally-stable, without being overly compressed.
According to an exemplary embodiment, compacting access is divided at least two sections, including the first segment with constant diameter, The first segment extends on be no more than the absolute growth of corresponding compacting access 20%.Pellet is suitable after this allows to compress Degree, it is relatively slow and gentle broaden, this has advantageous result for the technique for being suitable for the second agglomeration step.
The diameter of corresponding compacting access at least can be especially depending upon raw material greater than the target size of pellet in piecewise The characteristic that broadens.In the case where suppressing twice of diameter of the first segment for e.g. suppressing access that broadens of access, raw material or Pellet, which need not be undergone twice, to broaden.Finally, it depends on raw material, and whether pellet broadens according to compacting access and become completely again Whether width or pellet, which are stretched over, is less than to a certain degree.
The embodiment of compacting access as described above is all promoted in each case in the second agglomeration step (formed channel Press machine) in raw material successful compression.It specifically can be avoided to form too strong pellet (the pellet of too big compression), these Pellet does not have briquetting ability at all, especially because pellet has had in the first agglomeration step in the case where excessive compress Too high density, and key is stably formed between coal particle.It has been found that the embodiment of compacting access (can basis Required compaction degree and changeably adjust) can also for example make that there may be the raw material shadows of negative consequence to the second agglomeration step Sound minimizes.Therefore, by means of two steps agglomeration according to the present invention, application range extends also to the original covering extensively Material.
According to an exemplary embodiment, formed channel press machine includes having conical entrance and flaring exit section Compacting channel, and suppressing channel includes the cross-sectional geometry with opposed conicity, especially with Venturi nozzle Mode.Equipment for compression may include having the compacting channel of venturi cross-sectional geometry, compacting channel base Venturi compacting channel is defined/is appointed as herein in two opposed conicities.This provides high-intensitive and also has and work The related advantage of skill.Here, there is relatively tapered profile more particularly to realize comprehensive power effect or relaxation, specifically in circle In the case where cylindricality briquetting.It is specifically preferably to trade off in terms of intensity that one kind, which may be implemented,.
Pressure head specifically has cylindrical geometry.For pressure head, mold is brought down completely to due to not needing pressure head Or in cone compacting channel, therefore do not need to be adapted to the tapered geometry-variable in cross section.
Compacting channel can successively can be introduced in there are two wear sleeve, these wear sleeves in compacting channel In.
In other words, compacting channel may include the cross-sectional geometry with opposed conicity.Opposite taper can quilt It is described as the dual relatively tapered profile in a forward direction in Venturi tube shape.Entrance may include in direction of advance The upper cross-sectional geometry to narrow in cone, and outlet section can have broaden in a forward direction in cone it is transversal Face geometry shrinks first, then broadens, especially so that compacting channel forms the biconial profile with opposed conicity In a manner of Venturi nozzle.Slope/taper can be selected individually in each case, and can by it is one or more (can Replacement) formation of parts decision.It therefore, can optimization processing and/or compression in a simple manner for every kind of raw material.
According to an exemplary embodiment, entrance is shorter than outlet section in a forward direction.This allows to obtain high briquetting Intensity.It has been found that under any circumstance, the size for making the size of entrance be less than outlet section is advantageous.The two sections Function is different: outlet section, which also specifically aims at, soft is re-inflated function.
Extremely mild reflation (especially in the case where press moulded product) provides raising quality during agglomeration operation Effect.Broadening for briquetting can carry out in a controlled manner.
Compression intensity (during pressing) herein can be independently of the method parameter during relaxation (compressed expansion) To determine.Especially, by the length and slope of entrance and exit section, even if identical by the advanced speed for entirely suppressing channel (the length and slope of sleeve or molded part;The diameter and length of main necking down between conical section, especially constant cross-section Situation)), method parameter can be also influenced herein.
Have shown that extremely low porosity has the advantage that, especially for can ensure high compaction degree, and therefore Ensure high gross density and intensity due to compression.
According to an exemplary embodiment, the length of outlet section is at least 15cm.This allows to ensure the continuous relaxation of green compact. This has active influence for the intensity of green compact.
The length of outlet section is preferably not more than the 2/3 of the absolute growth of formed channel.Specifically in formed channel length In the case where 400mm, the length of outlet section is accurately or about 200mm.It has been found that if leading in this case The diameter of constriction widens into 50mm from 49.1mm, and it is advantageous.
The length of outlet section is preferably changeably adjustable, especially for the characteristic for being able to respond raw material.
For example, the forward speed or stroke of pressure head are determined, so that a stroke generates single briquetting in each case.
The speed that advance can be determined by the speed of rotary press is especially depending upon the water content, thin of raw material The other parameters of degree or raw material.According to these parameters, it can determine that briquetting passes through the migration rate in compacting channel.
According to an exemplary embodiment, compacting channel at least partly includes cylindrical cross-sectional geometry, special Not, in a forward direction, before conical entrance and/or after flaring exit section and/or in entrance and outlet Between section.This allows to carry out raw material the processing of milder, and it is made to reach required shape under low-stress state, especially For maximum intensity value.
According to an exemplary embodiment, compacting channel includes interlude between entrance and outlet section, among this Section has the cross-sectional geometry different from entrance and outlet section, especially has uniform, preferably cylindrical cross The section of cross-sectional geometry.This allows for the phase with certain constant pressure condition, to generate positive influence to intensity. It has been observed that becoming advantageous pressure distribution can specifically in the case where the circular form of rotational symmetry Can, and high gross density and the distribution of uniform gross density can be obtained, to be provided favorably for production high intensity block shape coke Condition.Specifically in the case where cylindrical geometry shape, uniform face pressure can be realized in the axial direction, and herein in connection with certain Forward speed and certain taper, realize high precision can predetermined radial face pressure it is (uniform particularly by having Pref. cylindrical cross-sectional geometry interlude, be fairly evenly distributed on entire briquetting).This, which is provided, has The briquetting of high (compression or abrasion) intensity.
According to an exemplary embodiment, complete channel or entrance and outlet section are suppressed respectively by single molded component It is formed.This even allows for relatively hard coal/raw material to carry out high quality compression.Molded component can be designed as having high intensity And resistance to pressure.In practice, it has been found that multi-section is made and is divided into type for especially for the binderless briquetting of German soft brown coal Mold is with regard to enough.For example, first sleeve (specifically until main constriction) can be provided for entrance, and second is provided for outlet section Sleeve (specifically since main constriction).Multiple separately formed components provide greater flexibility, because for different Coal/raw material can combine different sleeves.It is of particular importance that the advantage related with manufacture may be implemented.However, using single-piece (especially cylindrical) green compact molding die (or compacting channel) can realize extra high tensioning or pressure in compacting channel Power load, thus it is particularly advantageous for harder coal/raw material.Therefore, optimal trade-off can be selected according to raw material herein.
According to an exemplary embodiment, formed channel press machine includes cooling duct, and the cooling duct is along compacting Channel extends, and especially at least extends along entrance and outlet section.This also allows in very narrow temperature controllable range It is inside compressed, the result is that can further improve the quality of briquetting.
During compression, due to static friction and sliding friction, equalized temperature is established in compacting channel.The position of the balance Lower temperature can be transferred to by cooling duct by setting, and be specifically transferred to upper in the region no more than 65 DEG C to 80 DEG C Limit.It has been found that the upper limit is advantageous in terms of capable of compressing the selection of the raw material of relative humidity in low temperature stress or also.Specifically Ground can ensure the maximum temperature upper limit no more than 80 to 90 DEG C, this is proved to for generating high-bond in green compact/briquetting It is advantageous.Might have the cooling of active to adjust, volume flow especially in accordance with cooling medium (especially cooling water) and Temperature parameter.Specifically, observe that temperature range is 40 DEG C to 90 DEG C, especially 55 DEG C to 65 DEG C, to allow raw material brittle And therefore prevent quality from reducing.
According to an exemplary embodiment, formed channel press machine includes measuring device, which includes at least one A humidity sensor and/or at least one pressure sensor.This allows to monitor during compression and adjusts other parameters, especially In order to obtain extra high quality in terms of briquetting.The measurement of moisture specifically can be by means of sensor (for example, specific ground In the noncontacting proximity sensor of microwave) it completes, the sensor determination before compacting channel is supplied to die apparatus Raw material H2O content.It is desirable that using contactless measurement, especially optical means or ultrasonic method.
Pressure measurement can be carried out by means of sensor (for example, weighing sensor), in the sensor measurement formed channel Pressure (power/area) or pressure head on pressure.
According to an exemplary embodiment, the die apparatus include: the first agglomeration step upstream and for crush or Grind at least one equipment of raw material;And at least one equipment for dry feedstock, it is especially dry to≤20 mass The water or H20 of percentage.This allows to produce more efficiently at raw material for subsequent method and step.
Therefore, die apparatus may include multiple agglomeration steps, including at least formed channel press machine, at least one for grinding Grind the perforation of the equipment of raw material, at least one equipment for being used for dry feedstock and at least one raw material for being used to grind granulation Plate roller mill.Individual agglomeration step will be used for the moment in processing herein and provide the entire method or equipment of raw material (that is special herein) is interpreted as the first agglomeration step (obtaining the processing of pellet) and is interpreted as the second agglomeration step (obtaining the compression of briquetting).Therefore, agglomeration is related to before coking providing the method or equipment of briquetting in coke oven chambers upstream.
Milling apparatus may be adapted to for raw material to be crushed to about≤20mm.Milling apparatus can be specifically using jaw crusher Form.It has been found that it is especially advantageous for providing grinding/crushing when the diameter d of raw material is greater than 20mm.
According to the present invention, also by a kind of for by solid, (especially carbon raw material to be selected from by lignite, weak caking property cigarette The raw material of coal, biomass, the group of petroleum coke and petroleum coal composition) method for briquetting is compressed to realize at least one above-mentioned mesh , the method includes compressing the raw material;Wherein, raw material is made by perforated plate roller mill first in the first agglomeration step Grain is pellet, is then pressed into briquetting by formed channel press machine in the second agglomeration step, the formed channel press machine There is at least one compacting pressure head in the compacting channel for the outlet section that the entrance and taper tapered along taper broaden.This permits High quality, especially high-intensitive briquetting are provided perhaps.This method can be optimized easily for specified raw material.
According to one embodiment, raw material is granulated to form cylindrical pellets by perforated plate roller mill before the compression. This provides the raw material for being conducive to the form processing of compression in the upstream of formed channel press machine.
Perforated plate roller mill includes the mould with multiple compacting accesses, and the compacting access especially diameter is in 2mm to 6mm Between, especially up to 6mm, preferably less than 3mm, more preferably 0.1 to 2mm cylindrical passage.The length of access is at this In can be variable, or can individually determine for each mould.Each mould can be replaced, and can be directed to every kind Raw material is used alone.Access can have the cross-sectional geometry or metapore that broaden in outlet side, maximum be extended again with realizing. It that case, very weak compression/densification may be implemented.Therefore, pellet obtained includes extremely low gross density, because This includes high porosity, more specifically, gross density is in 0.65g/cm3To 0.75g/cm3In the range of and/or porosity 42% To in the range of 46%.It has been found that this allows to establish when compressing in the formed channel press machine with venturi passage Advantageous characteristic.According to an advantageous exemplary embodiment, the gross density of pellet is about 0.7g/cm3It or is just 0.72g/ cm3, and porosity is about 44% or is just 44.6%.
According to the present invention, perforated plate roller mill includes the mould with multiple compacting accesses, the diameter of each compacting access It is up to 6mm or in 1mm between 6mm, especially less than 3mm.This also provides advantageous processing for the second agglomeration step. It has been observed that can realize the advantageous preprocessing of raw material in a simple manner by means of perforated plate roller mill.
In agglomeration related fields, it is assumed that be in perforated plate roller mill the stress of raw material with then in formed channel press machine In compression combine the theory teaching for having violated the optimal process of raw material.In fact, hypothesis so far be granulation and with Being dried afterwards can be such that the key of particle is saturated, and in other words, singlet agglomeration is deemed appropriate to purpose.
In accordance with the invention, it has been found that specifically also by the favorable structure of the compacting access of the first agglomeration step, it can It creates good conditions for the successful compression in the second agglomeration step.Carried out in perforated plate roller mill pretreatment can to raw material into Row pretreatment, and relatively weak agglomeration can only be carried out by suppressing access, especially in preferred geometry, and therefore In the case where carrying out pretreated situation to raw material, preferred process (the second agglomeration step) is carried out by formed channel press machine.
Pellet should be understood herein carry out rolling by perforated plate roller mill/forming step after the molding that obtains Body.Pre-compaction/pellet geometry can be determined herein by the geometry of mould and/or access.Then, multiple grains Material then can in particular by more targetedly establish pressing pressure, temperature and pressing time shape in each case with Briquetting or green compact are formed in subsequent compaction step.
Compressing method includes two step agglomeration, wherein before the compression can be by the raw material of relative humidity (especially 20% Mass percent within the scope of) be granulated, specifically cylindrical pellet is made.Have proved to be advantageously: coal or Raw material includes 8 to 15 mass percents before the compression, especially the water content of 10 to 12 mass percents.Perforated plate roller mill Make it possible to for the raw material of relative humidity being granulated, and therefore, it, can between perforated plate roller mill and formed channel press To be dried as needed and when needed.
According to one embodiment, 60 DEG C to 95 DEG C or 50 DEG C to 90 DEG C or 40 DEG C to 80 DEG C are compressed in, especially at 55 DEG C It is carried out within the temperature range of to 65 DEG C.This to adhere to or agglomerate to be optimised, especially in each case all required In humidity range.It can specifically ensure not evaporate.It has been found that lignite can be especially compressed into extra high anti- The briquetting of Compressive Strength (especially at least about 65 DEG C).
According to one embodiment, it is compressed under the pressure of 120MPa to 150MPa and carries out, especially carried out at 140MPa. This allows to realize advantageous briquetting property to various raw materials.In the pressure limit, high quality specifically can be realized.
The pressure on the raw material on outlet section is applied to herein preferably than on the entrance in main necking down (interlude) Pressure it is much smaller, especially continuously reduced since maximum pressure levels.Especially on the basis of mild processing, this permission Ensure good briquetting property.
According to one embodiment, adhesive is supplied to raw material, more particularly, adhesive before the compression or during compression Group from the following terms composition: molasses, sulphite (waste liquid), sulfate (waste liquid), propane bitumen, cellulose fibre, HSC Residue, HSC/ROSE mixing residue.Certain pressure in the property or formed channel press machine of this briquetting for allowing to suppress The effect of condition is affected.Specifically adhesive is supplied within the temperature range of 30 DEG C to 120 DEG C.
It has been found that being not necessarily required to add adhesive in perforated plate roller mill.However, there and/or individual In mixer, briquetting or coke promoters also can be optionally added.Especially when handling the coal of relatively high coalification, in order to realize The adhesive for being used for briquetting and/or coking or coke promoters can be added to perforated plate roller mill sheet by the purpose most preferably mixed In body or in other individually mixer.Coke promoters can be added early in the upstream of perforated plate roller mill.
According to the present invention, the raw material after the first agglomeration step have 0.1 between 4mm or 0.1 to 3mm it Between, the especially less than pellet of 2mm or particle size.This is it possible to assure that compress effective cohesion of each particle in briquetting Power, it is especially unrelated with the property of the loading in coke oven chambers or direction.Compression is preferably being no more than the waterborne of 15 mass percents It carries out, is especially 8 to 15 mass percents or assorted to more targetedly 10 to 12 in temperature and/or humidity adjustable range It is compressed in the range of mass percent.
So far, conventional crushing has been carried out to obtain having the gradient of 1/0mm, and the particle with high degree fine crushing (has Body diameter≤0.25mm particle 40%).Equipment described herein allows wet pulverizing, wherein may insure with self raising flour The high secondary grading of the inside fineness of dirt load but pellet.When pellet is compressed, which results in the briquetting of relatively high quality, And specifically, also result in high voltage block/coke strenth.Here granulation can be with higher water content (20% to 60% In the range of) carry out.Two stages agglomeration enables raw material to be compacted with the state still with higher moisture.
Raw material can be crushed by grinding and being granulated in perforated plate roller mill.
According to one embodiment, the water content of the raw material for the first and/or second agglomeration step is 15 to 60 quality hundred Divide ratio, especially 40 to 60 mass percents;The water content of raw material during compression is raised to 5 to 20 mass percents, especially It is 10 to 12 mass percents, more specifically 11 mass percents, especially 40 DEG C to 70 DEG C at a temperature of, especially 50 DEG C to 70 DEG C, more specifically 60 DEG C.This allows to ensure the advantageous composition with good granule strength performance, especially right In lignite.On the other hand, for other raw materials, water content can also be higher or lower, specifically in the initial aqueous from raw material In the entire scope for measuring the water content that (such as 50% to 65% lignite) arrives the raw material by preliminarily dried.
Before the compression, preferably the first agglomeration step ensure porosity 40% to no more than 50% in the range of and/ Or gross density is in 0.6g/cm3To no more than 0.8g/cm3In the range of.According to an advantageous exemplary embodiment, in pellet In the case of, gross density is not more than 0.75g/cm3And/or porosity is not more than 45%.
According to one embodiment, it is being less than 15 seconds, is being especially less than 10 seconds, dividing more particularly within 3 seconds to 9 seconds time It criticizes and is compressed to form a briquetting.This allows to realize good performance in terms of briquetting, specifically including good strong Angle value.
According to one embodiment, before the compression, coal or raw material are mixed from least two different raw materials, especially It is mixed with adhesive.This allows the composition for specific application single optimization briquetting.
According to one embodiment, before the compression or coke promoters are supplied in the raw material during compression, are more particularly come From with the coke promoters of the following group: molasses, sulphite (waste liquid), sulfate (waste liquid), propane bitumen, cellulose fibre, HSC (high conversion cracking cracking) residue, HSC/ROSE (residual oil supercritical extraction) residue.This allows according to coking come specific Ground adjusts the performance of material, is adjusted especially in accordance with the temperature range selected in coke oven chambers.This is the parameter of influence method Provide further selection.Specifically coke promoters are supplied within the temperature range of 30 DEG C to 120 DEG C.
It according to one embodiment, is compressed in this way, so that being converted into coke briquettes or blocky coke Briquetting shows >=20MPa, especially >=30MPa compression strength before or after coking.Which ensure that high operation Reliability, in the case that especially very high in coke oven chambers and lower lock block bears relatively large load.As a result, the application range of briquetting becomes Especially extensively.It has been found that briquetting is also the determinant of briquetting intensity value after coking.But if dry, coking or cooling It is improper, then it may lose intensity.Utilize temperature control method described herein, it can be ensured that the compression strength of lignite is specifically It will not decline due to coking, but keep constant and even rise.Specifically, it can be ensured that intensity at least increase by 30% to 50%, such as increase at least 35MPa from 25MPa, or increase at least 45MPa from 30MPa.For optimizing the important ginseng of coking Number not only includes temperature curve, but also the specifically pressure condition in time/duration and coke oven chambers including coking.So And, it has proved that going out Temperature Distribution has maximum influence.
Intensity can be the one-variable function of density.Specifically, also can using adhesive even for lower density Enough production has the briquetting of very high intensity.
According to one embodiment, before compressing briquetting, raw material is heated to first and is dried containing for 20 mass percents Raw material is heated and is dried the water content for 11 mass percents then before briquetting is supplied in coke oven for iron by water Briquetting is formed to compress it/compress.Ensure that the processing to briquetting is especially mild in this way.Compression preferably 11% water content Lower progress, especially in the case where adjusting temperature and/or humidity.
By in two stages agglomeration operation in conjunction with formed channel press machine compressed using perforated plate roller mill selected from by At least one of the group that lignite, weak caking coal, biomass, petroleum coke and petroleum coal for providing briquetting form solid Raw material also achieves at least one above-mentioned purpose according to the present invention, and wherein perforated plate roller mill includes having multiple compactings logical The diameter of the mould on road, each compacting access is up to 6mm, especially less than 2mm, especially with two-way opposed conicity Compacting channel formed channel press machine, the formed channel press machine be used for from the pellet of perforated plate roller mill provide especially Cylindrical briquetting, is specifically used for the coke oven for iron with vertical coke oven room.This generates above-mentioned advantages.
At least one above-mentioned target according to the present invention, perforated plate roller mill are also achieved by using perforated plate roller mill Machine is used for former to free lignite, weak caking coal, biomass, at least one solid of the group of petroleum coke and petroleum coal composition is come Material is granulated, and for providing pellet, for pellet to be compacted into briquetting in formed channel press machine, wherein perforated plate roller is ground Machine includes the mould with multiple compacting accesses, and the diameter of each compacting access is up to 6mm, especially less than 2mm, especially For the coke oven for iron with vertical coke oven room.This generates above-mentioned advantages.
At least one purpose in above-mentioned purpose according to the present invention is realized by a kind of briquetting, which is suitable for Coking (or being converted into coke) is carried out in the coke oven for iron for producing coke (especially cylindrical briquettes);Wherein briquetting by The raw material composition of group from lignite, weak caking coal, biomass, petroleum coke and petroleum coal composition, and compression strength >= 20MPa, especially >=30MPa, briquetting are that by the first agglomeration step with perforated plate roller mill and have formed channel punching Press the second agglomeration step (after the first agglomeration step provide 0.1mm to 4mm or 0.1mm to 3mm size raw material) from What raw material generated.This provides above-mentioned advantage.Briquetting preferably has before and after coking before or after coking The compression strength.
According to an exemplary embodiment, briquetting includes cylindrical geometry.It has been found that this geometry exists It is with a wide range of applications on briquetting, specifically also still allows for the manufacturing method of benefit.According to an exemplary embodiment, briquetting Width be greater than that its is high wide, and more particularly plate-like.This makes it possible to that compression is combined particularly precisely to influence briquetting Property.
According to an exemplary embodiment, briquetting have cylindrical geometries, the ratio of width to height be 1 to 5, especially 2 to 3, there is at least one end face in the compacting pressure head end face for geometrically corresponding to formed channel press machine.This also allows to obtain special Not good intensity.By means of suppressing pressure head, the geometry in the narrow margin of tolerance is may be implemented in briquetting.This is not only strong Degree aspect is advantageous.The briquetting for example optionally has with 20 to 100mm width or diameter with flat end face There is fillet.It has been found that cylindrical geometry specifically mentions in terms of the raw material for replacing conventional blast furnace briquetting or routine Advantage is supplied, for the raw material of conventional blast furnace briquetting or routine, the reaction of smoulder and delay is necessary or the phase It hopes.In the case where cylindrical briquettes, specifically due to intensity value, it can be replaced in wider range It changes, which is that Lai Shixian (is compressed) in compacting channel by agglomeration method described herein.
Also achieve that according to the present invention at least one is above-mentioned by being suitable for the pellet that compresses in formed channel press machine Purpose, which is used to provide the briquetting of the coking in the coke oven for iron of production coke, by perforated plate roller It is former to free lignite, weak caking coal, biomass, at least one solid of the group of petroleum coke and petroleum coal composition is come in grinding machine Expect the size for being granulated the pellet to produce pellet, provided in formed channel press machine for 0.1mm to 4mm or 0.1mm extremely 3mm.This also provides be widely applied.
By compressing in the formed channel press machine with compacting channel come free lignite, weak caking coal, biology At least one solid material briquetting produced (especially above-mentioned briquetting) for the group that matter, petroleum coke and petroleum coal form also is realized At least one above-mentioned purpose, the compacting channel have dual opposite venturi tubular tapered, particularly in view of raw material It is granulated in perforated plate roller mill in advance.In this way, it other than various advantages relevant to technique, can also give birth to Produce high-intensitive briquetting.It has been found that when using equipment of the invention, it can also be by lignite and weak caking coal and biology Matter raw material is mixed with each other.This extends the application field of coke oven for iron described herein.
By be suitable in coke oven for iron the briquetting (especially above-mentioned briquetting) of coking also achieve it is according to the present invention extremely A few above-mentioned purpose, by perforated plate roller mill to coming free lignite, weak caking coal, biomass, petroleum coke and stone At least one solid material of the group of oily coal composition is granulated to produce briquetting, ruler of the raw material after the first agglomeration step Very little is 0.1mm to 4mm or 0.1mm to 3mm, then (especially has dual opposite venturi in formed channel press machine Tubular tapered compacting channel) in resulting pellet is compressed into briquetting (especially cylindrical briquettes).
Consolidated by at least one by the group formed from lignite, weak caking coal, biomass, petroleum coke and petroleum coal Coke briquettes composed by body raw material also achieve at least one above-mentioned purpose, compression strength >=20MPa of the coke briquettes, Especially >=30MPa is after carrying out multi stage drying in briquetting drier by connecting in each coke oven chambers in Temperature Distribution Continue in raised vertical coke oven room and is formed to by what is formed from lignite, weak caking coal, biomass, petroleum coke and petroleum coal Group at least one solid material composition briquetting (especially cylindrical briquettes) carry out coking and produce.
At least one of above-mentioned purpose also passes through a kind of coal pressure being made of lignite (being provided as coal cinder or coke briquettes) Base realizes that the coal green compact has characteristics that gross density is no more than 0.75g/cm3And/or porosity is no more than 45%, it should Coal green compact specifically has cylindricality plate-like geometry.
At least one of above-mentioned purpose is also by one kind by weak caking coal (being provided as coal cinder or coke briquettes) group At coal green compact realize that the coal green compact has characteristics that gross density is no more than 0.75g/cm3And/or porosity is no more than 45%, which specifically has cylindricality plate-like geometry.
At least one above-mentioned purpose is also achieved by the green compact being made of biomass or petroleum coal having the following properties that: Gross density is no more than 0.75g/cm3And/or porosity is no more than 45%, which specifically has cylindricality plate-like geometry.
By using by means of perforated plate roller mill be granulated and by means of formed channel press machine compression briquetting (especially It is cylindrical briquettes) at least one above-mentioned purpose is also achieved, which includes coming free lignite, weak bonding in vertical coke oven Property bituminous coal, biomass, the group of petroleum coke and petroleum coal composition at least one solid material, pressure more specifically as described above Block, for different steepness (being lesser slope first, followed by biggish by the thermal conditionings of at least two temperature ranges Slope) temperature slope produce coke briquettes.
At least one above-mentioned mesh is also achieved by using the coke promoters for producing briquetting (especially above-mentioned briquetting) , which includes at least one for coming free lignite, weak caking coal, biomass, the group of petroleum coke and petroleum coal composition Solid material, wherein coke promoters are by from at least one at being grouped as of the following group: sulphite (waste liquid), sulfate are (useless Liquid), propane bitumen, cellulose fibre, HSC residue, HSC/ROSE mixing residue.
At least one above-mentioned purpose is also achieved by using the adhesive for producing briquetting (especially above-mentioned briquetting), The briquetting includes at least one solid for carrying out the group that free lignite, weak caking coal, biomass, petroleum coke and petroleum coal form Raw material, wherein adhesive is by from at least one at being grouped as of the following group: sulphite (waste liquid), sulfate (waste liquid), third Alkane pitch, cellulose fibre, HSC residue, HSC/ROSE mixing residue, malt residue (useless cereal).This allows specific Ground need not change method significantly in the case where on specific raw mixture generate targetedly influence.In many situations Under, it may be desirable to it is compressed in the case where no adhesive.However, adhesive can not only improve pellet/pre(-)compaction Cohesive force, but also coke property (especially CRI and CSR value) can be improved.
By using for producing briquetting adhesive and/or coke promoters also achieve at least one above-mentioned purpose, should Briquetting includes coming free lignite, weak caking coal, biomass, at least one solid original of the group of petroleum coke and petroleum coal composition Material, adhesive or coke promoters include from at least one substance of the following group: sulphite (waste liquid), sulfate (waste liquid), Propane bitumen, cellulose fibre, HSC residue, HSC/ROSE mixing residue.It has been found that these substances both may be used as gluing Mixture is also used as coke promoters.Adhesive is added in raw material before the compression, and due to their adhesive attraction, Make it possible to produce the green compact of dimensionally stable from weak caking capacity raw material.On the other hand, coke promoters are only in coke oven chambers higher At a temperature of melt, wherein they are during raw material expansion/extension and resolidification (especially in > 350 DEG C of temperature range It is interior) so-called fusing bridge or solid-state bridge are formed between particles.
At least one above-mentioned purpose according to the present invention is also achieved by coal utilization equipment, the coal utilization equipment packet Include at least one above-mentioned coke oven for iron and at least one above-mentioned die apparatus, by means of die apparatus compression briquetting preferably It is compressed in the case where water content (especially in the range of 10 to 12 mass percent) less than 15 mass percents, and It is supplied to coke oven for iron with this water content, is provided in particular in the briquetting for the adjusting temperature and/or humidity for being located at coke oven chambers upstream Drier.It can absorb water again after processing to avoid briquetting in this way.Stress on material can be minimized.It has been found that advantageous , especially in terms of operational stability and end product quality, water content is 10 to 12 mass percents, especially 11 matter Percentage is measured, water content in the compression (the second agglomeration step) before immediately coking and (such as is being pressed between the drying program of downstream In block drier) it is constant.
Such coal utilization equipment has advantage in raw material or the management of pellet/pre(-)compaction or supply side, And specifically drying means or temperature curve can be neatly adjusted according to the type of coal.The briquetting finally compressed for example can be with Briquetting drier is transported to by means of the belt conveyor of wavy edge or conveyer belt (belt line) after compression Or in the feed bin before briquetting drier.
Alternatively, die apparatus (the especially formed channel press machine of die apparatus) is arranged on gravity direction The top of the briquetting drier of coke oven for iron.This makes it possible to be supplied in the case where not needing belt based on gravity.Mould The all parts of tool equipment also can be set in different positions.Briquetting can be for example transported to by shovel mechanism and specifically be set It sets in the feed bin above briquetting drier, so that can at least be transported out them from feed bin based on gravity.However, right For many plant designs, it may be more to have outside coking furnace group that entire agglomeration step or the equipment for being used to compress, which are arranged in, Benefit.
According to one embodiment, coal utilization equipment includes perforated plate roller mill, and the perforated plate roller mill is in the defeated of raw material The side of sending is upwardly arranged at the upstream of the formed channel press machine of die apparatus.In such a case, it is possible to realize material below Arrangement and/or flowing: raw material (specifically without carrying out preliminarily dried) is supplied in perforated plate roller mill, is subsequently dried, so After be compressed into briquetting.In contrast, so far, arrangement is convention below: by the feedstock transportation of precomminution into drier, this After be transported to separating twice equipment, be then compacted to form briquetting.
Preliminary dryer can be arranged near formed channel press machine.Briquetting drier is preferably placed at corresponding coke oven chambers Top.The following contents can especially be coupled with (corresponding) coke oven chambers: Bunker constructed as described above, constructed as described above Drier, the dry and cold equipment of the coke constructed as described below.Individual component can form unit: the first agglomeration step below (including drying, crushing), the second agglomeration step (including briquetting).It is alternatively possible to provide centralized drying for multiple coke oven chambers Device can merge more heat transfer sources in this case, especially for reduce discharge, reduce drier in corrosion or Coke quality is improved by the drying specific to raw material.In this case it is also possible to be formed with lower unit: first and second A agglomeration step, briquetting feed bin and briquetting drier, the coke oven chambers with feed bin constructed as described above and structure as described below The dry and cold equipment of the coke made.
As described above, lignite also can specifically carry out wet pulverizing and molding by two step agglomeration, that is to say, that when When water content is higher, especially it is disintegrated strongly in perforated plate roller mill or permission particle and therefore subsequent agglomeration can be promoted And/or in the perforated plate roller mill of realization high compressive strength.After drying, briquetting can be carried out in second agglomeration step Change.
In contrast, traditional lignite preparation method is carried out according to following scheme: raw coal is tentatively ground into thin original Coal, thin raw coal is dry to provide dry coal, dry coal is crushed, by smashed dry coal briquetting.
At least one is also achieved by a kind of method of production coke and/or valuable chemicals (such as gas and liquid) Above-mentioned purpose, the group that this method is made up of coking come free lignite, weak caking coal, biomass, petroleum coke and petroleum coal At least one solid material produce coke and/or valuable chemicals, wherein at least one solid material is before coking It is ground and is granulated in first agglomeration step, and further compressed in second agglomeration step, in each case preferably Drying is adjusted, then dries the mass fraction to water content lower than 5% in briquetting drier in the further stage, Then pass through shaft-like coke oven chambers from top to bottom according to gravity to convey, it is during this period, continuous with the increase of length of travel Heating, needed for thermal energy generated in the heating channel of at least two (preferably at least three) level, it is each horizontal to heat The side in channel is separately positioned on the side of respective coke room, and preferably also logical by the snakelike heating being positioned above Road, these channels are heated respectively by least one external burner, and through partition wall indirect branch into coke oven chambers, and wherein Raw material is then cold by means of cooling gas (especially adverse current) in the dry and cold equipment being located at below (respective) coke oven chambers chamber But the cooling gas, and therefore heated is by heat exchanger, wherein the original ground, crush, be granulated in the first agglomeration step Material is compressed in the compacting channel with cylindrical geometries in the second agglomeration step, which, which has, narrows And the cross section then to broaden again, especially form cylindrical, ice hockey shape briquetting, especially briquetting diameter and briquetting height The ratio between be 1 to 5, especially 2 to 3.
At least one is also achieved by a kind of method of production coke and/or valuable chemicals (such as gas and liquid) Above-mentioned purpose, the group that this method is made up of coking come free lignite, weak caking coal, biomass, petroleum coke and petroleum coal At least one solid material produce coke and/or valuable chemicals, wherein at least one raw material including that perforated plate roller is ground The first previous agglomeration step granulation of machine is then compressed in the second agglomeration step including formed channel press machine, and And preliminarily dried preferably is carried out in each agglomeration step, then dried in briquetting drier to containing in the further stage Water is lower than 5% mass fraction, then passes through shaft-like coke oven chambers from top to bottom according to gravity and conveys, during this period, with The increase of length of travel and be heated continuously, needed for thermal energy it is logical in the heating of at least two (preferably at least three) levels It is generated in road, the side in each horizontal heating channel is separately positioned on the side of respective coke room, and preferably also passes through position Square snakelike heating channel, these channels are heated respectively by least one external burner thereon, and pass through partition wall or heating Wall indirect branch into coke oven chambers, and wherein raw material then be located at (respective) coke oven chambers chamber below dry and cold equipment in It is cooling by means of cooling gas, and the cooling gas therefore heated passes through heat exchanger, wherein being ground in the first agglomeration step Mill, the raw material for crushing, being granulated are compressed in the compacting channel with cylindrical geometries in the second agglomeration step, the circle Cylindrical passageway has the cross section for narrowing and then broadening again, especially forms cylindrical, ice hockey shape briquetting, especially presses The ratio between block diameter and briquetting height are 1 to 5, especially 2 to 3.
By one kind by solid (especially carbon raw material) produce coke briquettes method also achieve it is according to the present invention At least one above-mentioned purpose, this method include not only compressing raw material to obtain briquetting as described above, but also including producing as described above Coke briquettes, wherein compress and downstream it is dry carried out in briquetting drier and/or coking it is respective have temperature and/ Or it is carried out in the coke oven chambers of humidity regulation.This allows briquetting to have very high quality, the especially temperature in whole operation chain And/or on the basis of humidity regulation.
Detailed description of the invention
By description from least one exemplary embodiment for using attached drawing and attached drawing itself, other of the invention are special Advantage of seeking peace is obvious.For the appended drawing reference not being expressly recited relative to single attached drawing, with reference to other accompanying drawings.Every It is as follows to scheme the content shown in schematic form:
Fig. 1 is the basic structure of die apparatus according to an exemplary embodiment, is especially set with including the mold In the relative device of standby coal utilization equipment;
Figure 2 shows in side view the coal utilizations for merging die apparatus according to an exemplary embodiment to set It is standby.
Fig. 3, Fig. 4 A, Fig. 4 B are all parts of the formed channel press machine of die apparatus accoding to exemplary embodiment;
Fig. 5 be according to an exemplary embodiment according to one embodiment production or for coke oven for iron or include burnt The advantageous geometry of briquetting in the coal utilization equipment of furnace apparatus;And
Fig. 6 to Fig. 8 shows the thin of the first agglomeration step of die apparatus accoding to exemplary embodiment in the diagram Section.
Specific embodiment
Fig. 1 shows die apparatus 70, which can be the coal utilization equipment 80 including coke oven for iron 10 A part.Die apparatus 70 includes the first agglomeration step 70.1 and the second agglomeration step 70.2.First agglomeration step 70.1 includes Perforated plate roller mill 79, the perforated plate roller mill have the mould 79.1 with multiple compacting accesses 79.2, and raw material 1 can be by this Compacting access is pressed and provides in the second agglomeration step 70.2 in the form of pellet 1.1.Second agglomeration step 70.2 includes For the equipment 73 of compression, which is configured to or including formed channel press machine.It after being compressed, can be by resulting pressure Block 5 is supplied to coke oven for iron 10, especially vertical coke oven.
Fig. 2 schematically shows die apparatus 70 is integrated in coal utilization equipment 80, the coal utilization equipment packet Coke oven for iron 10 is included, which has the feed unit 10.1, briquetting drier 15, import system for pressing block stock 5 System 16, multiple vertical coke oven rooms 11, the dry and cold equipment 19 of coke and outlet system 17.
The formed channel 73.1 with venturi geometry constructed in matrix 73.2 is shown in detail in Fig. 3, wherein Also there is thermal conditioning channel (cooling or heating channel) 73.21.Compacting pressure head 75 is guided in boot segment 74, the boot segment mistake It crosses to the entrance 76 (length of formed channel contraction flow region L73) continuously to narrow, the entrance is specifically by first set tubular At.This can follow interlude or main necking down 76a (specifically to have cylindrical geometries or rounded cross section in a forward direction Facial contour).The outlet section 77 continuously to broaden can be formed specifically by second sleeve.These sections are formed together mould 78, the mould It is that son optionally can be integral type or can be formed by the single shaped segment of formed channel.
Compacting pressure head 75 can move on maximum length of stroke H, and the length of single stroke preferably corresponds to each pressure The width (one briquetting of each stroke) of block.The depth E that pressure head lowers into entrance 76 is preferably significantly greater than corresponding Stroke.By the height Δ z73 of formed channel contraction flow region, suppression degree can determine.Height Δ z73 is preferably greater than formed channel The slope of the height and/or formed channel contraction flow region that broaden is greater than the slope that formed channel broadens.
Fig. 3 also shows control equipment 20, can be based on the measurement captured by measuring device 14 by means of the control equipment Value carries out operation control.Measuring device 14 specifically includes at least one temperature sensor 14.1 and/or at least one H2O sensing Device 14.2 and/or at least one pressure sensor 14.3, only show their corresponding position in an illustrative manner herein.Fig. 3 Shown in compress the form that can also optionally separate herein with other methods step and carry out.
Fig. 4 A, 4B show other component.Pellet 1.1 can be provided to preliminary dryer 71, and via connector 72 It is provided to formed channel press machine 73.Venturi formed channel is provided by single wear sleeve 73.3 herein.Formed channel tool There is circular cross-sectional geometry Q73.
Fig. 5 shows the preferred geometries of the briquetting 5 for vertical coking furnace.Briquetting 5 is cylindrical, and is had Diameter D5 and height h5.
Fig. 6 shows the mold 79.1 with multiple compacting accesses 79.2, absolute growth of the compacting access in mould Extend on L79.
Fig. 7, Fig. 8 respectively illustrate compacting access 79.2, and each compacting access includes first segment 79a and second segment 79b.Phase The compacting access answered has constant D79 diameter in first segment 79a.In second segment 79b, taper 79.3 is provided.
Fig. 8 shows one embodiment of compacting access, wherein the length of first segment 79a is not more than absolute growth respectively The 20% of L79.This geometry allows very appropriate broaden.
Reference signs list
1 raw material/raw material
1.1 pellets, the pellet especially produced by perforated plate roller mill
2 coke promoters
3 adhesives
4 briquetting groups
5 green compacts or coal briquette, especially discoid or ice hockey plate-like compaction or briquetting
6 green compacts or coke briquettes, especially discoid or ice hockey plate-like compaction or briquetting
10 cokes oven for iron, especially coking furnace
10.1 supplying units
11 coke oven chambers
14 measuring devices, especially with temperature and/or H2The measuring device of O sensor
14.1 temperature inductors
14.2 H2O sensor
14.3 pressure sensors
15 briquetting driers, the especially drier with roof dryer unit
16 inlet systems
17 outlet systems
The dry and cold equipment of 19 coke or dry and cold equipment
20 control equipment
70 die apparatus
70.1 the first agglomeration step
70.2 the second agglomeration step
71 preliminary dryers
72 are coupled to drier
The equipment of 73 compressions or formed channel press machine
73.1 formed channels or venturi suppress channel
73.2 matrixes
73.21 thermal conditioning channels (cooling or heating channel)
73.3 wear sleeves
74 boot segments
75 compacting pressure heads
76 entrances, especially first sleeve
The middle section 76a or main necking down, especially cylindrical midsection or main necking down
77 outlet sections, especially second sleeve
The single profiled section of 78 moulds or formed channel
79 perforated plate roller mills
79.1 moulds
79.2 suppressing access
79a suppresses the first segment of access accordingly
79b suppresses the second segment of access accordingly
79.3 tapers
80 coal utilization equipment
The diameter of D5 width, especially briquetting
The diameter of D79 compacting access
The height of h5 briquetting
H stroke length
E pressure head descending depth
L73 formed channel contracted length
The length of L79 compacting access
Δ z73 formed channel shrinks height
The cross-sectional geometry of Q73 formed channel

Claims (24)

1. a kind of for solid especially carbon raw material to be pressed into the die apparatus (70) of briquetting, the die apparatus, which has, to be used In the equipment for compressing the raw material,
It is characterized in that, the die apparatus includes the first agglomeration step (70.1) with perforated plate roller mill (79), it is described Equipment for compression includes formed channel press machine (73), and the formed channel press machine has at least one compacting pressure head (75) and corresponding compacting channel (73.1) and it is located at the downstream of the perforated plate roller mill as the second agglomeration step (70.2), And the perforated plate roller mill (79) includes the mould (79.1) with multiple compactings access (79.2), each compacting access Diameter is up to 6mm or between 1 and 6mm, especially less than 3mm.
2. the die apparatus according to preceding claims, wherein the compacting access is at least logical in corresponding compacting Cylindrical compacting access is at least partly configured in the first segment on road;And/or wherein, the compacting access is divided into At least two sections, including the first segment with constant diameter, and further include second segment, and the second segment has taper, especially The taper to broaden especially widens into 1.5 to 2 times of taper of the diameter;And/or wherein, the compacting access quilt It is divided at least two sections, including the first segment with constant diameter, the first segment is being no more than corresponding compacting access Extend on the 20% of absolute growth.
3. die apparatus according to claim 1 or 2, wherein compacting channel (73.1) the entering in a forward direction Mouth section (76) is shorter than outlet section (77);And/or wherein, the compacting channel (73.1) include conical entrance (76) and Flaring exit section (77), the compacting channel includes the cross-sectional geometry with opposed conicity.
4. die apparatus according to any one of the preceding claims, wherein the compacting channel (73.1) is at least partly Ground includes cylindrical cross-sectional geometry, especially in a forward direction, before the conical entrance (76) and/ Or after the flaring exit section (77) and/or between the entrance and the outlet section.
5. die apparatus according to any one of the preceding claims, wherein the compacting channel is included in the entrance Interlude (76a) between section and the outlet section (76,77), the interlude have and the entrance and the outlet section Different cross-sectional geometries especially has uniform, the section of preferably cylindrical cross-sectional geometry.
6. die apparatus according to any one of the preceding claims, wherein the compacting channel (73.1) completely or The entrance (76) and/or outlet section (77) in the compacting channel are formed by single molded component.
7. die apparatus according to any one of the preceding claims, wherein the die apparatus is included in described first At least one equipment for being used to grind the raw material of agglomeration step upstream, especially jaw crusher and at least one use In the equipment of the drying raw material, especially by the raw material drying to the water content of≤20 mass percents.
8. one kind is for being especially selected from solid and being made of lignite, weak caking coal, biomass, petroleum coke and petroleum coal Group carbon raw material, compress the method for briquetting, the method includes compressing the raw material;
Wherein, it is pellet that the raw material passes through perforated plate roller mill (79) granulation first in the first agglomeration step, is then existed It is pressed into briquetting by formed channel press machine (73) in second agglomeration step, the formed channel press machine is along taper There is at least one compacting pressure head in the compacting channel (73.1) for the outlet section (77) that tapered entrance (76) and taper broaden, The size of raw material after first agglomeration step is 0.1mm to 4mm or 0.1mm to 3mm.
9. the compressing method according to pre ---ceding method claims, wherein described to be compressed in 60 DEG C to 95 DEG C or 50 DEG C to 90 DEG C or 40 DEG C to 80 DEG C, especially carried out within the temperature range of 55 DEG C to 65 DEG C.
10. the compressing method according to any one of pre ---ceding method claims, wherein after first agglomeration step Raw material have less than 2mm size.
11. the drawing method according to any one of pre ---ceding method claims, wherein be used for described first and/or second The water content of the raw material of agglomeration step is 15 to 60 mass percents, especially 40 to 60 mass percents;Wherein, the compression The water content of the raw material of period is raised to 5 to 20 mass percents, especially 10 to 12 mass percents, especially 11 mass Percentage, especially 40 DEG C to 70 DEG C at a temperature of, especially 50 DEG C to 70 DEG C, especially 60 DEG C.
12. compressing method according to any one of the preceding claims, wherein the compression is conducted batch-wise in every kind of feelings Less than 15 seconds under condition, especially less than 10 seconds, a briquetting is formed especially within 3 to 9 seconds time.
13. the compressing method according to any one of pre ---ceding method claims, wherein described to be compressed in 120MPa extremely It carries out under the pressure of 150MPa, is especially carried out at 140MPa.
14. the compressing method according to any one of pre ---ceding method claims, wherein before or during the compression to The raw material supplies adhesive, especially selected from by molasses, sulfite solution, sulfate liquor, propane bitumen, cellulose fiber The adhesive of dimension, the group of HSC residue and HSC/ROSE mixing residue composition.
15. compressing method according to any one of the preceding claims, wherein carry out the compression so that before coking And/or the briquetting for being converted to coke briquettes later has >=20MPa, especially >=30MPa compression strength.
16. the compressing method according to any one of pre ---ceding method claims, wherein first before compressing the briquetting First the raw material is heated and is dried as the water content of 20 mass percents, the briquetting is then being supplied to coke oven for iron (10) it before in, the raw material is heated and dries the water content for 11 mass percents forms pressure to compress it/compress Block.
17. a kind of perforated plate roller mill (79) combines formed channel press machine (73) for compressing choosing in two stages agglomeration operation Freely it is used to provide at least one of lignite, weak caking coal, biomass, petroleum coke and the group of petroleum coal composition of briquetting The purposes of solid material, wherein the perforated plate roller mill (79) includes the mould with multiple compactings access (79.2) (79.1), the diameter of each compacting access is up to 6mm, especially less than 2mm, especially with two-way opposed conicity The formed channel press machine of channel (73.1) is suppressed, the formed channel press machine is used to provide from the pellet of perforated plate roller mill Especially cylindrical briquetting.
18. a kind of perforated plate roller mill (79) is used for next free lignite, weak caking coal, biomass, petroleum coke and petroleum The purposes that is granulated of at least one solid material of the group of coal composition, the perforated plate roller mill is for providing pellet with by institute It states pellet and is compacted into briquetting in formed channel press machine (73), wherein the perforated plate roller mill (79) includes with multiple The mould (79.1) of access (79.2) is suppressed, the diameter of each compacting access is up to 6mm, especially less than 2mm.
19. a kind of briquetting (5) for the coking in the coke oven for iron of production coke, especially cylindrical briquettes;
It is characterized in that, the briquetting is by the group that forms from lignite, weak caking coal, biomass, petroleum coke and petroleum coal Raw material composition, and compression strength >=20MPa, especially >=30MPa, the briquetting are by with perforated plate roller mill (79) the first agglomeration step (70.1) and the second agglomeration step (70.2) with formed channel press machine (73) are produced from raw material Raw, the size of the raw material after first agglomeration step is 0.1mm to 4mm or 0.1mm to 3mm.
20. the briquetting according to preceding claims, wherein the briquetting has cylindrical geometries, the briquetting The ratio of width to height is 1 to 5, especially 2 to 3, has and is geometrically corresponding to the compacting pressure head end face of formed channel press machine at least One end face.
21. a kind of pellet for compressing in formed channel press machine, the formed channel press machine is being produced for providing The briquetting (5) of coking in the coke oven for iron of coke, by perforated plate roller mill (79) to come free lignite, weak caking property cigarette Coal, biomass, the group of petroleum coke and petroleum coal composition at least one solid material be granulated to produce pellet, it is described at The size of the pellet provided in the press machine of shape channel is 0.1mm to 4mm or 0.1mm to 3mm.
22. a kind of briquetting for the coking in coke oven for iron, especially in accordance with pressure described in any one of preceding claims Block, by being formed in perforated plate roller mill (79) to free lignite, weak caking coal, biomass, petroleum coke and petroleum coal is come At least one solid material of group be granulated to produce briquetting, size of the raw material after first agglomeration step For 0.1mm to 4mm or 0.1mm to 3mm, resulting pellet is then compressed into briquetting in formed channel press machine (73), Especially cylindrical briquettes.
23. a kind of coal utilization equipment (80), the coal utilization equipment includes that at least one has at least one coke oven chambers Coke oven for iron (10) and at least one die apparatus (60) according to any one of foregoing mould equipment claim, are borrowed Help the briquetting of the die apparatus compression preferably in the water content less than 15 mass percents, especially in 10 to 12 quality hundred It is compressed in the case where dividing in the range of comparing, and the coke oven for iron is supplied to the water content, be provided in particular in position In the briquetting drier of the adjusting temperature and/or humidity of the coke oven chambers upstream.
24. a kind of by solid, the especially method of carbon raw material production coke briquettes, the method includes both compressing the raw material To obtain the briquetting according to any one of pre ---ceding method claims, and it is included in coke oven for iron (10) and produces coke pressure Block, wherein the compression and the downstream dry progress and/or the coking in briquetting drier (15) are each From with temperature and/or humidity adjust coke oven chambers in carry out
CN201880024812.6A 2017-04-13 2018-04-05 Compress the device and method and application thereof of carbonaceous input material Pending CN110494535A (en)

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