CN103510415A - Method for decomposing fiber material - Google Patents
Method for decomposing fiber material Download PDFInfo
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- CN103510415A CN103510415A CN201310247102.9A CN201310247102A CN103510415A CN 103510415 A CN103510415 A CN 103510415A CN 201310247102 A CN201310247102 A CN 201310247102A CN 103510415 A CN103510415 A CN 103510415A
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- breakdown device
- inspissator
- slag
- stream
- decomposing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The invention relates to a method for decomposing a fiber material (9), and especially a method for decomposing waste paper. The fiber material (9) is transferred to a material decomposer (1) and is at least decomposed partly by mixing of a revolving member (3) and water (25). According to the method, after the material decomposer (1), at least a part (20,21,23) of the pre-decomposed fiber material (9) is transferred to a concentrator (30) used for concentration and a decomposition roller (12) used for further decomposition.
Description
Technical field
Theme of the present invention is a kind of for decomposing fibrous material in particular for decomposing the method for waste paper.At this, fibrous material flows to low concentration material breakdown device (mixer) and by tumbler, mixes with water there and decompose at least in part.
Background technology
Up to now, especially aspect Waste Paper Handling, be common as follows, that is, waste paper decomposes and the slag stream (Rejektstrom) in material breakdown device is flowed to so-called hazardous waste handlers in material breakdown device (mixer), purifies and discongest fibrous material suspended matter in hazardous waste handlers.From slag hazardous waste handlers, that can wash in advance there, conventionally cyclically flow to cleaning-drum, in cleaning-drum, slag washed or dewater.
According to service condition, be definitely common as follows, that is, move abreast a plurality of decomposition routes.At this, waste paper often has different quality grades.The waste paper decomposing for difficulty is often by above-mentioned mixer, one or more hazardous waste handlers that can load with the pulp pump adding and the method for one or more cleaning-drums utilized.And the waste paper that is easy to decompose only decomposes conventionally in the method for parallel running in decomposing cylinder.Decomposing cylinder, to take its a small amount of energy requirement be feature, yet the waste paper that traditional decomposition cylinder decomposes for difficulty is conventionally A.O.C.C.(American Old Corrugated Containers for example, U.S.'s old corrugated container) decomposition can only limitedly apply.For this waste paper, drum length must increase significantly and solution temperature must improve.But, because these measures have lost the advantage of comparing less running cost with the system of using mixer.
Summary of the invention
Therefore, the present invention is based on following task, that is, disclose a kind of for decomposing fibrous material in particular for decomposing the method for waste paper, utilize the method can save energy the waste paper that decomposes more difficult decomposition itself.
This task is solved by the following method, and the fibrous material that at least a portion flows to material breakdown device in the method to flow to inspissator and decomposes cylinder in order further to decompose after material breakdown device.This relates to following fibrous material route, and this fibrous material route not only comprises material breakdown device and also comprises decomposition cylinder.In inspissator, fibrous material suspended matter is concentrated to the solid material content of about 8%-25% from the solid material content of about 3%-5%.Inspissator can be for example gravity sieve inspissator, rising spiral inspissator, rotary concentrator or worm screw inspissator.
By the predecomposition in material breakdown device and by concentrated, can must be less by the size design of decomposing cylinder or material breakdown device.So energy efficient operation of system.The legacy system of only working together with decomposing cylinder need to remove silk thread device (de-wiring unit) in order to remove silk thread before decomposing cylinder.Here can abandon this except silk thread device because silk thread can be removed by the pigtail shape part (Zopf) of material breakdown device.
Now, by the invention provides a kind of method, even if the difficult waste paper decomposing should always not have identical quality, profit in this way also can be reliably and energy-conservationly by its decomposition.
Preferably, at least a portion flows to inspissator from fibrous material or the waste paper of material breakdown device by means of at least one pump, yet in the situation that suitable allocation plan also can be carried out free importing.
In the present invention, mixer is understood for material breakdown device, and it is with unlimited container, and fibrous material or waste paper and (process) water flow to this container.Tumbler is in container, and it supports the also decomposition of accelerating fibers material.
In the present invention, substantial horizontal to the cylinder of slight inclination is interpreted as decomposition cylinder, and this decomposes cylinder around its axis rotation and fibrous material partial solution separating with slag (interfering material) in subsequent step within it.
The method according to this invention makes to become as follows possibility,, at least a portion (can until 100%) fibrous material (the preferably waste paper of more difficult decomposition) flows to material breakdown device, and other fibrous material (preferably more labile waste paper) also can directly flow to decomposition cylinder in this case.
In material breakdown device, conventionally realize the product material that fibrous material is divided into the slag stream that comprises fibrous material and interfering material and mainly comprises fibrous material and only comprise relative interfering material composition seldom and flow.Yet, this be separated in framework of the present invention optional.In the first embodiment of method, from whole fibre suspensions of material breakdown device, flow to inspissator and decompose cylinder.At this, be favourable as follows, that is, before fibre suspension/interfering material suspended matter being flowed to decomposition cylinder, make it based on precipitation, experience heavy and partly deposit.
In this case, material breakdown device (mixer) is mainly used in the predecomposition of fibrous material, and subsequently, its basic decomposition is carried out after concentrated in decomposing cylinder.In this operation variant, be possible as follows, that is, material breakdown device does not move the in the situation that of there is no sieve plate below tumbler.Thus, also reduced in the wearing and tearing at material breakdown device place or saved thus wearing part (sieve plate).The fibrous material of predecomposition can or export the outlet with slag by product material and leaves material breakdown device, or only by one in these two outlets, leaves material breakdown device.
Fibrous material minute slagging stream (but slag also has fibrous material) and product material stream (thering is seldom most fibrous material of slag ingredient) in material breakdown device in the second embodiment of method, have been realized.Whole slag stream from material breakdown device preferably flows to inspissator by pulp pump.At this, be favourable as follows, that is, before the slag stream being comprised of interfering material and fibrous material suspended matter is flowed to inspissator, make it based on precipitation, experience heavy and partly deposit.
Compare with conventional decomposing system, in this operation variant, by decomposing the use of cylinder, make hazardous waste handlers and cleaning-drum become unnecessary, or also can low concentration decomposer be implemented littlely, because only need predecomposition.
In this operation variant, be favourable as follows,, from the slag stream of material breakdown device by directly and precipitator tower or the precipitation vessel (heavy part depositor) of material breakdown device adjacency guide, thereby can deposit therein heavy partly for example glass or metal part.
Accompanying drawing explanation
Two kinds of operation variants explanation hereinafter with reference to the accompanying drawings of the method according to this invention.Wherein:
Fig. 1 illustrate according to prior art, for decomposing the method schematic diagram of waste paper;
Fig. 2 illustrate the method according to this invention, for the method schematic diagram of the first operation variant;
Fig. 3 illustrate the method according to this invention, for the other method schematic diagram of the first operation variant;
Fig. 4 illustrate the method according to this invention, for the method schematic diagram of the second operation variant;
In accompanying drawing, identical Reference numeral correspondingly represents identical member or material stream.
The specific embodiment
Conventional shown in Fig. 1, for decomposing the method schematic diagram of waste paper.At this, fibrous material 9, that is, waste paper group, flows to material breakdown device 1(mixer by conveyer belt 10).In material breakdown device 1, waste paper mixes with water 25, and at this, waste paper decomposes and formation fibrous material suspended matter.At this, the material breakdown in mixer 1 is supported by tumbler 3.The fiber that major part decomposites arrives product material chamber by tumbler 3 sieve 4 below, and the product material stream 20 in material breakdown device 1 is exported from product material chamber.Then, product material stream 20 flows to other unit in order further to process by product material pump 6.
Part fibrous material suspended matter and the interfering material especially comprising in waste paper leave material breakdown device 1 and arrive precipitator tower 2 as slag stream 21.In the present invention, slag stream 21 is interpreted as the material stream that not only comprises fibrous material but also comprise interfering material.Slag stream 21 is left precipitator tower 2 and is flowed to hazardous waste handlers 7(de-burring machine by pulp pump 5 by overfall).When hazardous waste handlers 7 is arranged in overfall horizontal line when following, above-mentioned conveying also can realize without pulp pump 5 ground.
Heavy part removes from precipitator tower 2 with gripping apparatus 11 termly.Can certainly imagine: the bottom at precipitation vessel 2 is furnished with gate, this gate is sent heavy part periodically.
Fibrous material suspended matter, that is, slag stream 21(fiber suspension logistics and interfering material stream), in hazardous waste handlers 7, purify and discongest (size degradation).This realizes by means of tumbler and classification sieve, and product material 22 must be through this classification sieve.Hazardous waste handlers 7, also referred to as de-burring machine, is often clearing machine or secondary mixer.
Hazardous waste handlers 7 is operation periodically conventionally.At this, in the first method step, the slag stream 21 from material breakdown device 1 is flowed to hazardous waste handlers 7, and extract the product material chamber after the sieve of classifying by product material 22 out.In this step, it is also expressed as product material output (receiving circulation), and slag gathers in hazardous waste handlers 7.From the product material stream 22 in hazardous waste handlers 7, again flow to material breakdown device 1 or converge with the product material stream 20 from material breakdown device 1.
In the second method step, turn-off product material output 22, and the slag of accumulation in hazardous waste handlers 7 is especially discongested in rear processing.For this method step, also often use the concept of " heavy pulping process ".
After discongesting, in third method step, reopen product material output 22, and the slag rinsing in hazardous waste handlers 7 with process water 24, thus, washed-residue is also flushed to fiber in product material stream 22.
Finally, in the 4th method step, again turn-off product material output 22, and stream 23 extracts and flow to cleaning-drum 8 using the slag through washing as slag, and here by water 24, again wash and dewater.Product material stream 27 from cleaning-drum 8 again flows to material breakdown device 1 and removes the slag 26 through washing.Sometimes be also favourable as follows, that is, the content according to heavy part in waste paper, extracts the heavy part that may accumulate in hazardous waste handlers termly by bottom outlet.
Next, circulation is again from the first method step above.Slag stream 23 from hazardous waste handlers 7 is cyclically flowed to cleaning-drum 8 in conventional method.
Fig. 2 shows the first operation variant of the method according to this invention.At this, a part (its can until 100%) fibrous material 9 flows to material breakdown device 1 via conveyer belt 10.Another part fibrous material 9 ' can optionally flow to and decompose cylinder 12 via conveyer belt 10 '.Fibrous material 9 is preferably waste paper high-quality, more difficult decomposition.Fibrous material 9 ' is for being easy to that decompose, common inferior waste paper, and described waste paper also can decompose well in decomposing cylinder 12.In this first operation variant, as slag stream 21, flow to inspissator 30 and decompose cylinder 12 after depositing heavy part from whole fabaric mterial flows of material breakdown device 1 (fibre suspension and interfering material stream) in precipitator tower 2 or precipitation vessel.This conveying here realizes by pulp pump 5, yet in the situation that suitable allocation plan also can be carried out free importing.At this, material breakdown device 1 does not move the in the situation that of not being with sieve plate under tumbler 3.By inspissator 30 slag streams 21, for example from the solid material content of 3%-5%, be concentrated to the solid material content of 8%-25%.
Heavy part removes from precipitator tower 2 with gripping apparatus 11 termly.Can certainly imagine: the bottom at precipitation vessel 2 is furnished with gate, this gate is sent heavy part periodically.
In this first operation variant, material breakdown device 1 works as predecomposition device substantially, and basic fibrous material decomposition is carried out in decomposing cylinder 12, and therefore, material breakdown device 1 can correspondingly be implemented littlely and more have energy efficiency.
Classified part 13 is after decomposing cylinder 12, and wherein, fibrous material suspended matter is divided into product material stream 28 and slag stream 29.
Fig. 3 illustrates another embodiment of the first operation variant of the method according to this invention.At this, from whole fabaric mterial flow 20(fibrous materials and the interfering material of material breakdown device 1) as product material stream 20, via product material pump 6, flow to inspissator 30 and decompose cylinder 12.Here, material breakdown device 1 is also not move the in the situation that of not being with sieve plate under tumbler 3.Here, heavy part can remove by heavy part gate (not shown), and this heavy part gate is assemblied in the bottom of material breakdown device 1.
Fig. 4 illustrates the second operation variant of the method according to this invention.Here, a part of fibrous material 9 flows to material breakdown device 1, and another part fibrous material 9 ' optionally flows to decomposition cylinder 12.
In material breakdown device 1, realize the decomposed of fibrous material 9.The fiber decompositing leaves material breakdown device 1 via sieve 4 as product material 20.Whole slag streams 21 of material breakdown device 1 flow to inspissator 30 and decompose cylinder 12 by means of pulp pump 5.First, the heavy part being included in slag stream 21 can deposit in heavy part depositor 2.
Product material stream 20 from material breakdown device passes through and flows to other unit from decomposing cylinder 12 sides by product material pump 6.
Reference numerals list
1 material breakdown device
2 precipitator towers (heavy part depositor)
3 tumblers
4 sieve plates
5 pulp pumps
6 product material pumps
7 hazardous waste handlers
8 cleaning-drums
9 fibrous materials
10 conveyer belts
11 gripping apparatus
12 decompose cylinder
13 classified parts
20 product material streams
21 slag streams
The product material stream of 22 hazardous waste handlers
The slag stream of 23 hazardous waste handlers
24 (process) water/filtrate
25 (process) water/filtrate
The slag of 26 cleaning-drums
The product material stream of 27 cleaning-drums
28 decompose the product material of cylinder
29 decompose the slag of cylinder
30 inspissators
Claims (8)
1. for decomposing fibrous material (9,9 ') in particular for decomposing the method for waste paper, wherein, at least a portion of described fibrous material (9) is flowed to material breakdown device (1) and by tumbler (3), mix with water (25) there and decompose at least in part, it is characterized in that, at least a portion (20,21,23) that flows to the fibrous material (9) of described material breakdown device (1) to be flowed to inspissator (30) and in order further decomposing to flow to, to decompose cylinder (12) subsequently for concentrated afterwards at described material breakdown device (1).
2. in accordance with the method for claim 1, it is characterized in that, described at least a portion (20,21,23) of the fibrous material (9) from described material breakdown device (1) is flowed to described inspissator (30) by pump (5,6).
3. according to the method described in claim 1 or 2, it is characterized in that, in described material breakdown device (1), realize described fibrous material (9) is divided into and still comprises the slag stream (21) of fibrous material (9) and the product material stream (20) that comprises most fibrous materials (9).
4. according to the method one of claims 1 to 3 Suo Shu, it is characterized in that, all fibres material (9) from described material breakdown device (1) is flowed to described inspissator (30).
5. in accordance with the method for claim 3, it is characterized in that, only the slag stream (21) from described material breakdown device (1) is flowed to described inspissator (30) at least in part.
6. in accordance with the method for claim 5, it is characterized in that, the whole slag streams (21) from described material breakdown device (1) are flowed to described inspissator (30).
7. according to the method one of claim 5 to 6 Suo Shu, it is characterized in that, the slag stream (21) from described material breakdown device (1) is guided through to settler (2) before flowing at least in part described inspissator (30).
8. according to the method one of claim 1 to 7 Suo Shu, it is characterized in that, other fibrous materials (9 ') directly flow to described decomposition cylinder (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA697/2012 | 2012-06-20 | ||
| ATA697/2012A AT512857B1 (en) | 2012-04-24 | 2012-06-20 | Process for the dissolution of fibrous materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103510415A true CN103510415A (en) | 2014-01-15 |
| CN103510415B CN103510415B (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310247102.9A Active CN103510415B (en) | 2012-06-20 | 2013-06-20 | Method for decomposing fibrous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103510415B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254698A (en) * | 2020-02-25 | 2020-06-09 | 山东科技大学 | Process for preparing superfine functional fiber from vinasse |
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2013
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| EP0073609A2 (en) * | 1981-08-20 | 1983-03-09 | The Black Clawson Company | Rotary screening machine |
| US4632320A (en) * | 1984-06-09 | 1986-12-30 | Hermann Finckh Maschinenfabrik Gmbh | Apparatus for dissolving and sorting waste paper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254698A (en) * | 2020-02-25 | 2020-06-09 | 山东科技大学 | Process for preparing superfine functional fiber from vinasse |
| CN111254698B (en) * | 2020-02-25 | 2020-10-09 | 山东科技大学 | Process for preparing superfine functional fiber from vinasse |
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| Publication number | Publication date |
|---|---|
| CN103510415B (en) | 2018-02-16 |
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