CN105473321A - Method for forming molded bodies from a granular material, and corresponding roller press - Google Patents
Method for forming molded bodies from a granular material, and corresponding roller press Download PDFInfo
- Publication number
- CN105473321A CN105473321A CN201480045884.0A CN201480045884A CN105473321A CN 105473321 A CN105473321 A CN 105473321A CN 201480045884 A CN201480045884 A CN 201480045884A CN 105473321 A CN105473321 A CN 105473321A
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- China
- Prior art keywords
- roller
- roll squeezer
- depression
- bulk material
- rollers
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
- B30B11/006—Control arrangements for roller presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/04—Folding chairs with inflexible seats
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Glanulating (AREA)
Abstract
The invention relates to a method for forming molded bodies, wherein a feed flow of a granular material with a specifiable particle size distribution is fed to a roller press (1) with at least two rollers (2, 3) which rotate in opposite directions about a respective rotational axis (4), each of which comprises interacting recesses (13) for the pressing process, said rollers (2, 3) defining a roller gap (5) between each other. The roller press (1) is equipped with rigid rollers (2, 3). The design of the rigid rollers (2, 3) prevents a deflection of a loose roller due to the counter pressure of the granular material in the roller gap (5), thus leading to a consistent pressure in the roller gap (5). In this manner, molded bodies of a specifiable quality can be formed. In a preferred process, the feed flow of granular material to the rollers (2, 3) is kept at a constant level, for example by means of a constant rotational speed of the conveyor screw (9) as a result of a corresponding actuation of the conveyor screw drive (14) using the control unit (6). In particular, molded bodies can thus be produced in a high-pressure method without requiring an additional processing step after the agglomeration or the formation of the molded bodies. In particular, a drying process of the corresponding molded bodies, for example briquettes, can be omitted.
Description
The present invention relates to the method being formed into body, wherein bulk material (it can comprise one or more materials, particularly at least comprises coal) is processed into formed body by roll squeezer.The present invention also relates to corresponding roll squeezer.Preferably application of the present invention is the production of forming fuel body (as coal briquette).
Except the press of other types, roll squeezer is also for the production of forming fuel body.There is various processing technology in this.Such as, roll squeezer is shaping for bulk material only, wherein, carries out post processing subsequently, as done corresponding dry solidification to formed body.Such as can understand so a kind of manufacture craft from DE19961325C1.
In addition, discuss so-called high pressure compressed, be wherein embodied as the final intensity of body by specific thrust, in the roller gap between at least two rollers that this specific thrust appears at roll squeezer.Roll squeezer has two rotatably mounted rollers usually, and two rollers rotate along contrary direction.Corresponding shape or depression are positioned at the surface of roller.The bulk material being transported to roller is by rotary transport in roller gap, and under being in pressure, this pressure causes granular media lump and be formed into body.In this case, the formed body intensity formed depends in fact pressure time and space process.
Prior art is known to be combined the fixing roller of roll squeezer and movable roller.In this case, the counter-pressure of movable roller is set up by external system, such as, use hydraulic pressure or baric systerm.Advantageously, the relevant pressure of these systems is as the control variables in process or parameter.But, disadvantageously, due to the counter-pressure having bulk material to revolt compression, make movable roller surrender and change roller gap, cause there is irregular pressure curve along roll width direction, the fluctuation and formed body has spatially been improved quality with the time.
Above as starting point, target of the present invention overcomes defect of the prior art at least in part.Target of the present invention is realized by the feature of independent claims, and corresponding dependent claims relates to favourable amendment.
According to the inventive method being formed into body, the wherein incoming flow donor rollers press of bulk material, bulk material has particle size distribution that can be predetermined, this roll squeezer has at least two rollers, these at least two rollers rotate around corresponding rotating shaft in opposite direction, each roller has depression for the cooperation of pressing process and selectable ridge, and described roller defines roller gap in-between, it is characterized in that this roll squeezer is designed with rigidity roller.
It is not movable roller that term " rigidity roller " here specifically can be regarded as, and such as this movable roller is pressed against fixing roller by hydraulic pressure or baric systerm.Contrary, this system has two rigidity, and the roller namely installed regularly, it, to 10mm, is particularly preferably the roller gap from 1mm to 2mm that the position of this roller and size define corresponding preferably 0mm (millimeter).In this case, distance between roll squeezer two roller, as two rollers special-shaped ridge between the central point in connection two roller axle line on (particularly in the system with rigidity roller and movable roller) or be set up (particularly in the system with two rigidity rollers) minimum range occur, roller gap is appointed as by roller.
Such as, if will carry out adhesive-free high pressure briquetting to the material that granular size is less than 6/0mm, then the processing technology in " zero millimeter of gap " is favourable.In such a process, roller gap is set as that the size of 1 to 2mm is as safe distance.In the briquetting being added with adhesive and/or in the hot wafering of such as sponge iron, the width of roller gap is especially according to can predetermined press capacity determine.Here, the gap width of about 10mm may be favourable.
Owing to employing two rigidity rollers, because the counter-pressure of bulk material resistance compression, in roller, no longer include surrender, make to achieve in roller gap spatially and contact constant in time in predetermined time section.Therefore, uniform charging transmission, i.e. uniform incoming flow, and particularly relate to the technique of constant thrust, the formed body with homogeneous quality can be realized.Therefore, method according to the present invention makes it possible to produce the formed body having and limit quality requirement, and the fluctuation of formed body quality well known in the prior art can not occur.Therefore, the formed body of (mode particularly by high pressure caking) dimensionally stable can be formed, and step need not be further processed to this process, such as dry.
Roller body is the section of being provided with or band preferably, can the predetermined profile of machined in this section or band, and this profile preferably forms depression, or depression and smooth surface (ridge), these cave in and smooth surface engaging one another in a rotational direction.Here section is understood as that a kind of element, and this element is screwed in roller body.Here band is understood as that a kind of element, and this element is retracted in roller body.These are recessed on preferred two rollers has same shape.The geometries of these depressions depend on that the predetermined prod size of formed body, these product sizes usually depend on the briquetting performance of the possible purposes of formed body, roller diameter and material.
The particle size distribution of the material to be pressed comprised in incoming flow is selected to determine preferably by the relevant parameter in front Grinding Process.The rotating shaft preferably orientation parallel to each other of roller, so that can limit uniform roller gap between roller.Each roller design is rotate in opposite direction under identical speed, and when being designed so that proper roller rotates, two depressions or a depression and smooth surface (ridge) in roller gap toward each other.Due in two correspondingly relative concave edges with inner or relative depression and smooth surface edge on and the inner pressure produced, there is the compression of bulk material, which has been formed the formed body of dimensionally stable, so-called compacted part.Therefore, even if especially under high pressure, such as, in 80MPa to 160Mpa (MPa) scope, the high pressure caking of such as forming fuel body can be realized.
According to a preferred embodiment, bulk material at least comprises part of fuel, especially coal.
The formed machining of forming fuel body can be particularly advantageous for according to method of the present invention, preferably under high pressure suppress.These forming fuel bodies preferably at least comprise part coal, especially brown coal.According to the present invention, other fuel and additive are possible.Other fuel or organic material can be added, such as wood chip, straw etc. and additive, such as lime.In addition, according to the present invention, by supply briquetting auxiliary agent, the water of such as starch or specified quantitative, can improve the briquetting performance of bulk material.
According to embodiment favourable further, incoming flow keeps constant.
Especially, this means that the incoming flow of the bulk material entering compacting room remains unchanged, compacting room is positioned at above roller.This can realize, and such as, when conveying screw rod is for carrying bulk material incoming flow, the rotary speed of this conveying screw rod remains unchanged.Constant incoming flow makes this method simply to control and to regulate, such as, controlled by the rotary speed of at least one roller and regulated.Preferably, be provided with two rollers, these two rollers are with same speed synchronous rotary.
According to an advantageous embodiment, the rotary speed of at least one roller regulates according at least one following variable:
A) roller thrust and
B) contact of roller.
Therefore, especially when there being constant bulk material incoming flow, method of the present invention can realize in a straightforward manner.Maximum thrust or the maximum contact pressure (it acts on bulk material or material to be pressed when bulk material or material to be pressed travel across roller gap) of the roller set according to speed can be measured in its simplest form by force snesor and/or pressure sensor.The deformeter be attached on such as press frame is preferably used as force snesor, is used for measuring thrust.Load cell is preferably used as pressure sensor, and especially based on the load cell of capacitive measuring principle, pressure sensor is advantageously for good and all arranged between roller bearing and press frame.Further, additionally or alternatively, in a preferred embodiment, be provided with at least one force snesor or pressure sensor in the valley, be used for measuring the maximum pressure that produces when bulk material is directly pressed into depression or maximum power.This power in roller gap or force value also can advantageously be used for regulating the rotary speed of roller.
According to embodiment favourable further, incoming flow is fed continuously.
This can realize particularly by corresponding conveying device, such as, and conveying screw rod.By continus convergence, can guarantee produced formed body constant mass, the adjustment or the control that simultaneously simplify this technique are possible.
In this, it is also preferred that the bulk material in incoming flow is compressed.
Substantially, this technique should be chosen to so that bulk material is compressed, but is not yet pressed into block in incoming flow.During compacting room before compression especially can occur in and bulk material is transported to roller.This compression especially can be realized by corresponding conveying device.Bulk material in compression incoming flow causes incoming flow homogenising, in other words, more evenly carries material, more equably incoming flow supply is had the roller of corresponding depression.This will make the uniform quality of the formed body produced.
According to a further aspect in the invention, propose the roll squeezer for the formation of formed body, this roll squeezer comprises at least the first roller and the second roller, in all cases, first roller and the second roller have depression for the cooperation of machine-shaping formed body and optional ridge, its middle roller can rotate along corresponding rotating shaft, each rotating shaft orientation parallel to each other, its middle roller is rigidity and defines the roller gap between roller, roll squeezer comprises control device further, and this control device is suitable for and is intended to for implementing method of the present invention.
According to a favourable embodiment, roll squeezer comprises at least one in following measuring transducer further:
A) pressure sensor, and
B) force snesor
For measuring at least one in following variable, these variablees act on the material treating to suppress in roller gap:
A) pressure, and
B) power.
Pressure and/or power in roller gap, the i.e. contact of each roller and/or thrust, namely treat the contact on the whole material suppressed in roller gap and/or thrust, constitute simple controlled variable, by means of this controlled variable, adjustable according to method of the present invention and also regulate roll pressure thus.Therefore, such as, in predetermined incoming flow situation, namely enter roll squeezer predetermined granular medium mass flow situation in, use force value and/or force value to regulate the rotary speed of roller to be possible.Thrust can preferably by strain-ga(u)ge measurement, and contact can be measured preferably by pressure force cell, and such as, this pressure force cell can be arranged between the roller bearing of roll squeezer and framework.Alternatively or additionally, power is measured and/or pressure measxurement can advantageously occur in the depression for formed machining formed body, and power is measured and/or tonometric result is alternatively, or in addition used as the rotary speed that control variables regulates roller.
According to the embodiment favourable further of roll squeezer, roll squeezer has conveying device, and it is for being delivered continuously to roller by bulk material.In this, if the compression set of compression granulated material during providing conveying simultaneously, or conveying device not only affects the conveying of material but also affects the compression of material, and this is particularly preferred.
Especially, conveying device and compression set can be so-called conveying screw rods, and it makes it possible to continus convergence and compression granulated material simultaneously.
Further, propose the roll squeezer for formed machining formed body, this roll squeezer at least comprises the first roller and the second roller, wherein each roller can rotate around corresponding rotation, each rotation is parallel to each other, wherein along with each roller rotates in opposite direction, bulk material can be processed into formed body between roller, the feature of this roll squeezer is that each roller has cylindrical surface, this cylindrical surface has depression and ridge, these depressions are scattered in ridge and make when each roller rotates in opposite direction with identical speed on cylindrical surface, in each case, ridge on depression on a roller and accordingly another roller coordinates to be formed into body.
The remodeling of this roll squeezer preferably above-mentioned roll squeezer, but independent of described above as requisite feature of the present invention and limit outside feature, also this roll squeezer can be implemented.This corresponding roll squeezer is conducive to making can produce in half mat or the formed body of half droplet profile, as compacted part by the mode of elevated pressurization.Corresponding roll squeezer and corresponding application of producing forming fuel body, especially briquetting, is possible, and does not need further treatment step, such as, post processing after press process process.In the embodiment of this description, in each situation, depression and ridge are combined with and are beneficial to the power in stampings that realizes and distributes and pressure distribution, and the distribution of this power and pressure distribution make the forming fuel body of corresponding presser's artistic skill production dimensionally stable.
According to a favourable embodiment, at least one depression described has profile, and this profile comprises the entrance curve and exit curve with different curvature radius on the direction rotated.
According to a favourable embodiment, at least one processed shaping of caving in makes the bottom of caving in tilt relative to the Normal plane of radius.
Concave bottom can be regarded as the region corresponding to the corresponding long limit of forming fuel body.Here the Normal plane understood is perpendicular to the plane of radius, to be namely orthogonal to radius.This radius is at least one radius in sunk area, the especially in the valley radius of the heart, that is, in a rotational direction with the radius in entrance curve and the equidistant sunk area of exit curve.
According to an advantageous embodiment, bottom (especially in the central area of bottom) surrounds an angle relative to normal plane 10 degree and the less number of degrees.Here central area is especially interpreted as it is a region being positioned at boundary curve, the region namely between boundary curve.
According in claim, because different radius of curvature and/or bottom are relative to radius method planar tilt, especially with 10 degree or more small angle inclination, at roll squeezer run duration, can come in a simpler manner advantageously to realize forming fuel body to depart from or release from depression.Particularly because depression entrance curve and the different curvature radius of exit curve and concave bottom are relative to the combination of normal slope, during roll squeezer rotary motion, create power, this power and roll squeezer direction of rotation directly tangent, this advantageously achieve forming fuel body from depression release.
According to a favourable embodiment, depression forms the section of cylindrical surface or a part for band.
Here the section understood is an element, and this element is screwed in roller body.Here the band understood is an element, and this component shrinkage is in roller body.The depression formed by section or band makes roll squeezer have simple structure, and section and/or band especially by replacing damage in wearing and tearing situation make simply to repair roll squeezer.
Disclosed in method of the present invention details and advantage transferable and be applied to according to roll squeezer of the present invention, vice versa.The feature mentioned respectively in claim can be bonded to each other with technical reasonable manner, and is supplemented by the explanatory theme of description and accompanying drawing, and description and accompanying drawing show other embodiments of the invention modification.
Hereinafter with reference accompanying drawing does more detailed explanation to the present invention and technical field.Accompanying drawing particularly illustrates preferred typical embodiment, but the present invention is not limited thereto.Especially, it should be noted that accompanying drawing, the size particularly illustrated is more schematic than just.In accompanying drawing:
Fig. 1 shows an example of roll squeezer;
Fig. 2 ~ 3 show the perspective view of first kind depression;
Fig. 4 ~ 5 show the perspective view of the second example of depression; And
Fig. 6 ~ 7 show the sectional view of another example of depression.
Fig. 1 schematically shows the roll squeezer 1 with the first roller 2 and the second roller 3.As shown by arrows, roller 2 and roller 3 rotate around the rotation 4 of correspondence along contrary direction.Each rotation 4 orientation parallel to each other.Roller 2 and roller 3 are rigidity, and that is they are designed to make at least in preset range, especially in roller 2 and roller 3 thrust preset range, can stop the translational motion of roller 2 and roller 3 or the translational motion of rotation 4.Rotation only around rotation 4 (as shown in corresponding arrow) is possible.Roller 2 and roller 3 determine roller gap 5 roller between them on the line of rotation 4 connecting roller 2 and 3.In this pure schematic diagram, for illustrative purposes, roller gap 5 is shown with enormous proportions.Preferably, roller gap 5 has the size of 0mm to 10mm.In granular size from 6/0mm to 0.5/0mm and in the material high pressure briquetting situation of the bindless of meticulousr granular size, it is favourable for running with " zero mm gap " roller, between its middle roller 2 and 3, roller gap 5 is set as predetermined safe distance, preferably, this safe distance is in the scope from 1mm to 2mm.
And roll squeezer 1 comprises control device 6, this control device is connected to the driver of roller 2 and 3 particularly by corresponding data wire 7.Control device 6 is suitable for and is intended to for implementing method of the present invention and therefore controlling corresponding assembly.Control device 6 is connected to pressure sensor 8 by another data wire 7, and the pressure of the material that roller gap is 5 li is measured by pressure sensor 8.Also be provided with force snesor 17.This force snesor is designed to deformeter.
In addition, roll squeezer 1 comprises conveying screw rod 9, when carrying bulk material, conveying screw rod 9 is used as simultaneously and bulk material is delivered continuously to roller 2, the conveying device 10 of 3 and be used as the compression set 11 compressing this bulk material while bulk material is transferred.Like this, the incoming flow of bulk material (not shown here) is delivered to roller 2 in compressed form continuously, in the compacting room 18 on 3.Conveying screw rod 9 has conveying screw rod driver 14, and conveying screw rod driver 14 is similarly connected to control device 6 by data wire 7.Bulk material is delivered to conveying screw rod 9 by feed arrangement 20.
Roller 2,3 have cylindrical surface 12 in each same situation, and cylindrical surface 12 has external concavity 13.These depressions 13 are such as formed by the section 16 of twisting thereon or are formed by the band shunk thereon.Fig. 2 to Fig. 5 shows the example being formed depression 13 by section 16.
Fig. 2 and Fig. 3 shows first example of the section 16 with depression 13, and its another corresponding roller 2 to roll squeezer 1, the corresponding section 16 on 3 interacts, and constitutes the former of the corresponding shaping body as half depression blank.In this case, corresponding section 16 has the depression 13 replaced with ridge 15.In various situations, section 16, such as, section 16 shown in Fig. 2 is formed on the first roller 2, and second segment, such as, section 16 shown in Fig. 3 is formed on the second roller 3.In this case, section 16 is at roller 2, the geometry of the distribution on the cylindrical surface 12 of 3 and depression 13 and ridge 15, be chosen to make when the first roller 2 and the second roller 3 under the corresponding original position determined and rotate with same rotary speed time, these depressions 13 on two rollers 2 and 3 match, so that in all cases, in roller gap 5, depression 13 and ridge 15 are toward each other, and defeat bulk material to be formed into body with high pressure thus, in this case, this formed body is half concave shape.Depression 13 is designed to, when roller 2,3 rotates, can realize corresponding pressure distribution, and this pressure distribution causes the bulk material for formed body to lump and compression.In this case, cylindrical surface 12 can have multiple depression 13, and these depressions are separated from each other by corresponding ridge 15.Particularly, multiple depression 13 can be formed along the width of cylindrical surface 12, so that multiple formed body is shaped by corresponding roll squeezer 1 simultaneously.
Before conveying screw rod sent into by bulk material, material can heat, such as, by Steam Heating at relatively high temperatures, such as, in so-called heating cabinet.Blow auxiliary heating bulk material by steam, preferably heat during conveying screw rod 9 filler.For this purpose, vapourizing unit 19 is provided.
Fig. 4 and Fig. 5 shows second example of the section 16 with depression 13, the same with first example, and depression 13 forms to interact on the cylindrical surface 12 of the first roller 2 and the second roller 3 in position respect to one another.
According to Fig. 2 to Fig. 5, each depression 13 can the part of the section of being 16, and section 16 is arranged on cylindrical surface 12 or cylindrical surface 12 is formed by section 16.Alternatively or additionally, depression 13 can be a part for band, and band is contracted on cylindrical surface 12.
Fig. 6 and Fig. 7 shows the orthogonal sectional view of another example of the section 16 with depression 13, and it is for roller 2, on 3.Each depression 13 has bottom 21, and bottom 21 corresponds to the long limit of forming fuel body.Bottom 21 is parts of the profile 22 of depression 13.
Fig. 6 shows the first cross section through section 16, and Fig. 7 shows the cross section perpendicular to the first cross section.As shown in Figure 6 and Figure 7, section 16 is arranged on roller 2, on 3 (not shown), and rotates along direction of rotation 28.At transversely (see Fig. 6) relative to direction of rotation 28, profile 22 has both sides curve 29, and both sides curve 29 has identical radius of curvature 25, and each radius of curvature is pointed out by arrow.In addition, bottom 21 is parallel to the normal plane 26 of radius 27 perpendicular to direction of rotation 28.
Fig. 7 shows the cross section perpendicular with the cross section shown in Fig. 6.When seeing along direction of rotation 28, in direction of rotation 28, bottom 21 tilts relative to the normal plane 26 of radius 27 at center 30 place, the region namely in direction of rotation 28 away from entrance curve 23 and its limit 31, similarly away from exit curve 24 and its limit 31.In addition, entrance curve 23 has first curvature radius 32, and exit curve 24 has second curvature radius 33, and first curvature radius 32 and second curvature radius 33 are different.After being pressurized, the power created along direction of rotation 28 is combined in the inclination of bottom 21, this power and direction of rotation 28 tangent and impel the forming fuel body of pressurization to discharge.Therefore, forming fuel body can discharge from depression 13 in a straightforward manner.
In the example of the depression 13 shown in Fig. 2 to Fig. 7, preferably, these depressions are designed such that they are distributed on cylindrical surface 12, thus when roller 2,3 rotates in opposite direction with same speed, in all cases, roller 2, depression 13 on 3 at another corresponding roller 3, the ridge 15 on 2 coordinates, to be formed into body.
Owing to devising the roller 2,3 of rigidity, there is no the situation that the movable roller occurring to be caused by the counter-pressure of bulk material is surrendered, thus make there is constant pressure in roller gap (5).Therefore, the formed body of predetermined quality can be formed.In one preferably process, such as, will flow to roller 2 by the constant rotational speed of conveying screw rod 9, the incoming flow of the bulk material of 3 remains on constant level, and the constant rotational speed of conveying screw rod 9 is realized by control device 6 respective drive conveying screw rod driver 14.By using conveying screw rod 9, bulk material, to roller 2, is compressed while 3 conveyings and is compressed.The method is controlled to and makes due to constant incoming flow and constant roller gap, and the rotary speed of the first roller 2 and the second roller 3 is according to roller 2, and the thrust of 3 regulates.In this case, thrust obtains in the simple mode of the measured value based on pressure sensor 8 and/or force snesor 17.Therefore, the method can simply control, and the formed body that production has the mass parameter determined is possible.Especially, therefore formed body can be produced with the method for high pressure, and does not need at formed body caking or carry out extra processing step after being shaped.Especially, the oven dry of correspondingly configured body (such as coal briquette) can be omitted.
Reference numerals list
1 roll squeezer
2 first rollers
3 second rollers
4 rotations
5 roller gap
6 control device
7 data wires
8 pressure sensors
9 conveying screw rods
10 conveying devices
11 compression sets
12 cylindrical surfaces
13 depressions
14 conveying screw rod drivers
15 ridges
16 sections
17 force snesor
18 compacting rooms
19 vaporising devices
20 feed arrangements
Bottom 21
22 profiles
23 entrance curves
24 exit curves
25 radius of curvature
26 Normal planes
27 radiuses
28 direction of rotation
29 side direction curvature
30 centers
31 limits
32 first curvature radius
33 second curvature radius
Claims (15)
1. one kind is formed into the method for body, the incoming flow wherein with the bulk material of predetermined particle size distribution is supplied to the roll squeezer with at least two rollers, described at least two rollers rotate around corresponding rotation in opposite direction, and each described roller has depression for the cooperation of pressure processing craft and optional ridge, described roller defines the roller gap between described roller, it is characterized in that, described roll squeezer is designed with rigidity roller.
2. method according to claim 1, is characterized in that, described bulk material comprises fuel at least partly, especially coal.
3. according to the method in aforementioned claim described in, it is characterized in that, described incoming flow keeps constant.
4. according to the method in aforementioned claim described in, it is characterized in that, the rotary speed of at least one roller regulates according at least one in following variable:
A) roller thrust and
B) contact of roller.
5. according to the method in aforementioned claim described in, it is characterized in that, described incoming flow continus convergence.
6. method according to claim 5, is characterized in that, described bulk material is compressed in incoming flow.
7. a roll squeezer (1), for formed machining formed body, this roll squeezer at least comprises the first roller (2) and the second roller (3), roller described in each has depression (13) and the optional ridge (15) of the cooperation for formed machining formed body, wherein said roller (2, 3) can rotate around corresponding rotation (4), described rotation (4) is parallel to each other, wherein said roller (2, 3) be rigidity and define the roller gap (5) between described roller, described roll squeezer comprises control device (6) further, described control device (5) is suitable for and is intended to the method for implementing according to aforementioned any one of claim.
8. roll squeezer according to claim 7 (1), is characterized in that, comprises at least one in following measuring transducer further:
A) pressure sensor (8) and
B) force snesor
For measure act on the material suppressed in roller gap following variable at least one:
A) pressure and
B) power.
9., according to the roll squeezer (1) described in claim 7 or 8, it is characterized in that, comprise conveying device (10), this conveying device (10) is for being delivered continuously to described roller (2,3) by bulk material.
10. roll squeezer according to claim 9 (1), is characterized in that, comprises compression set (11), and conveying compression set (11) compresses described bulk material while conveying bulk material.
11. 1 kinds of roll squeezers (1), for formed machining formed body, roll squeezer particularly according to any one of claim 7 to 10, described roll squeezer (1) at least comprises the first roller (2) and the second roller (3), wherein said roller (2, 3) can rotate around corresponding rotation (4), each described rotation (4) is parallel to each other, roller (2 wherein by rotating in opposite direction, 3), bulk material can at roller (2, 3) formed body is pressed between, it is characterized in that, each roller (2, 3) there is cylindrical surface (12), described cylindrical surface (12) has depression (13) and ridge (15), described depression and described ridge are distributed in described cylindrical surface (12) and make when described roller (2, 3) when rotating in opposite direction with identical speed, in each case, a roller (2, 3) depression (13) on and another corresponding roller (3, 2) ridge (15) on matches, to be formed into body.
12. roll squeezers according to claim 11 (1), is characterized in that, at least one depression (13) described has profile, and described profile comprises the entrance curve and exit curve with different curvature radius in a rotational direction.
13., according to the roll squeezer (1) described in claim 11 to 12, is characterized in that, at least one depression (13) shape be arranged to cave in bottom of (13) tilts relative to the normal plane of radius.
14. roll squeezers according to claim 13 (1), is characterized in that, described bottom surrounds 10 degree of angles or less angle relative to normal plane.
15., according to the roll squeezer described in claim 7 to 14, is characterized in that, a part for described depression (13) section of being 16 or band, described section (16) or described the band described cylindrical surface of formation (12).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013109405.8A DE102013109405A1 (en) | 2013-08-29 | 2013-08-29 | Method of forming molded articles from a granular material and corresponding roller press |
| DE102013109405.8 | 2013-08-29 | ||
| PCT/EP2014/067789 WO2015028377A1 (en) | 2013-08-29 | 2014-08-21 | Method for forming molded bodies from a granular material, and corresponding roller press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105473321A true CN105473321A (en) | 2016-04-06 |
| CN105473321B CN105473321B (en) | 2019-06-18 |
Family
ID=51398611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480045884.0A Expired - Fee Related CN105473321B (en) | 2013-08-29 | 2014-08-21 | Method and corresponding roll squeezer from bulk material formation formed body |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3038819A1 (en) |
| CN (1) | CN105473321B (en) |
| AU (1) | AU2014314392B2 (en) |
| DE (1) | DE102013109405A1 (en) |
| WO (1) | WO2015028377A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944830A (en) * | 2017-07-14 | 2020-03-31 | 魁伯恩机械制造有限责任两合公司 | Roller press and method for determining the filling level |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013018431A1 (en) * | 2013-10-16 | 2015-04-16 | Pallmann Maschinenfabrik Gmbh & Co. Kg | Device for processing pourable feed |
| KR101839959B1 (en) * | 2016-08-29 | 2018-03-19 | 주식회사 포스코 | Gravity feeder for coal briquettes manufacturing apparatus and method for feeding material of gravity feeder |
| RU2720009C1 (en) * | 2019-12-30 | 2020-04-23 | Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" | Device for briquetting loose materials |
| CN111152502B (en) * | 2020-02-24 | 2020-08-25 | 磐安叶层煤矿设备有限公司 | Efficient forming device for straw coal processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593378A (en) * | 1968-09-03 | 1971-07-20 | Exxon Research Engineering Co | Briquetting press |
| US3824054A (en) * | 1972-10-12 | 1974-07-16 | Kg Ind Inc | Controller for compacting machines |
| US4017241A (en) * | 1975-11-07 | 1977-04-12 | United States Steel Corporation | Notched-flight feeder screws for briquetting operation |
| JPS54126674A (en) * | 1978-03-22 | 1979-10-02 | Kubota Ltd | Automatic controller for granulator |
| JPH01107999A (en) * | 1987-10-21 | 1989-04-25 | Kawasaki Heavy Ind Ltd | Powder molding machine |
| CN101190541A (en) * | 2006-11-28 | 2008-06-04 | 刘运武 | Roller press type tile blank tire shaping machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1029277B (en) * | 1957-04-12 | 1958-04-30 | Schuechtermann & Kremer | Method and device for automatic adjustment of a predetermined pressing pressure in briquette roller presses |
| DE1409534A1 (en) * | 1959-11-11 | 1968-12-05 | Continental Elektro Ind Ag | Device for regulating the amount of bulk material supplied to the press nip of roller presses which are preferably used for coal briquetting |
| WO1995009079A1 (en) * | 1993-09-30 | 1995-04-06 | Maschinenfabrik Köppern Gmbh & Co. Kg | Process for producing sponge iron briquettes from fine ore |
| JPH09192896A (en) * | 1996-01-19 | 1997-07-29 | Sintokogio Ltd | Briquette machine |
| EP1084820A1 (en) * | 1998-04-09 | 2001-03-21 | Freund Industrial Co., Ltd. | Device and method for processing powder and granular material |
| DE19961325C2 (en) * | 1999-12-18 | 2001-11-15 | Rheinische Braunkohlenw Ag | Barbecue briquette for preparing food on an embers and process for its production |
| DE102010053593A1 (en) * | 2010-12-07 | 2012-06-14 | Zemag Maschinenbau Gmbh | Binderless briquetting of hard brown coal, bituminous coal and similar coals comprises processing raw coal, drying raw coal, treating dry coal, briquetting and treating briquette |
-
2013
- 2013-08-29 DE DE102013109405.8A patent/DE102013109405A1/en not_active Withdrawn
-
2014
- 2014-08-21 EP EP14755353.1A patent/EP3038819A1/en not_active Ceased
- 2014-08-21 WO PCT/EP2014/067789 patent/WO2015028377A1/en active Application Filing
- 2014-08-21 CN CN201480045884.0A patent/CN105473321B/en not_active Expired - Fee Related
- 2014-08-21 AU AU2014314392A patent/AU2014314392B2/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593378A (en) * | 1968-09-03 | 1971-07-20 | Exxon Research Engineering Co | Briquetting press |
| US3824054A (en) * | 1972-10-12 | 1974-07-16 | Kg Ind Inc | Controller for compacting machines |
| US4017241A (en) * | 1975-11-07 | 1977-04-12 | United States Steel Corporation | Notched-flight feeder screws for briquetting operation |
| JPS54126674A (en) * | 1978-03-22 | 1979-10-02 | Kubota Ltd | Automatic controller for granulator |
| JPH01107999A (en) * | 1987-10-21 | 1989-04-25 | Kawasaki Heavy Ind Ltd | Powder molding machine |
| CN101190541A (en) * | 2006-11-28 | 2008-06-04 | 刘运武 | Roller press type tile blank tire shaping machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944830A (en) * | 2017-07-14 | 2020-03-31 | 魁伯恩机械制造有限责任两合公司 | Roller press and method for determining the filling level |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015028377A1 (en) | 2015-03-05 |
| DE102013109405A1 (en) | 2015-03-05 |
| AU2014314392B2 (en) | 2018-02-08 |
| EP3038819A1 (en) | 2016-07-06 |
| AU2014314392A1 (en) | 2016-02-25 |
| CN105473321B (en) | 2019-06-18 |
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