JPH01213491A - Apparatus and method for improving quality of paper obtained from secondary fiber - Google Patents

Abstract

PURPOSE: To provide the subject apparatus and method for obtaining high-quality recycled paper causing no appearance peculiar to waxed paper by using a specific amplifier device through its linking to a pulp disaggregator and a fibrous raw stock separator. CONSTITUTION: This method comprises such a scheme that, when recycled pulp used for laminated paperboards and tissue paper is to be produced from old corrugated board containers(OCC), the OCCs are subjected to a pulp disaggregator, the pulp thus disaggregated is subjected to a fibrous raw stock separator and separated into fibrous raw stock to be used and fibrous raw stock to be discarded, the latter is subjected to an amplifier device to build up the contaminants therein as waste raw stock by the aid of heat and cavitation force inside a Venturi tube; wherein the amplifier 12 has a steam inlet 16 connected to a mixing chamber 12, a raw stock inlet 18, a chemical feed inlet 20, and an overflow discharge port 17; and the Venturi tube 24 has an inlet 17 communicating with a mixing chamber 14 and an outlet 25 connected to the outlet 26 of the amplifier 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a method and apparatus for producing paper, especially recycled raw materials such as old corrugated container (OCC) fibers, deinked grades and mixed papers. Mostly related to paper making.

[Conventional technology]

It is desirable to increase the proportion of recycled paper such as OCC fibers used in the manufacture of paper such as laminated paperboard or other types of paper such as tissue paper. increases in laminated paperboard give the appearance of a waxed product, which makes the laminated paperboard unacceptable for certain container applications.Visual quality issues in the final laminated paperboard product. Waxed products containing molten or fused mother rough-in waxes, polyolefins, hot melts, polypropylene films, polyethylene films, foamed plastics such as styrofoam and urethane foam, latex adhesive components, fused polystyrene, etc. Many of these ingredients are synthetic or naturally occurring organic substances that are solid at room temperature but become fluid at elevated temperatures. ) Because of this transition to soft, highly flexible solids or highly viscous liquids at temperatures in the range of Since they are in the same range as water, i.e. in the range of 0.95-1.00, it is also difficult to separate them by centrifugation.

In an attempt to improve the quality of the final paper product, recycled OC
In the backing paper mill where C fiber is used, raw material or paper stock (s
In the production of tack), a system known as an asphalt dispersion system is used. A typical paper mill using OCC fibers begins the process by charging the OCC into a pulp disintegrator and adding water until the mixture has a consistency of about 1% by weight solids. Pulp disintegration machine converts solids into paper A? It has a rotating mechanical element that shreds the material into a slurry consisting of solid waste and contaminants. Contaminants typically contain bulky foreign objects such as large pieces of metal and glass, nails, clasps, beverage cans, and bottles. In addition, inorganic substances such as sand and wax, polyethylene film, poly 10
Small particulate contaminants of various organic materials such as pyrene, glue, styrofoam, etc. are also present.

Many of the small particulate contaminants are sticky materials that tend to stick to each other and aggregate into large particles of sticky material. The paper stock stream exiting the pulp disintegrator, typically at a consistency of 4%, is directed to a holding tank for the purpose of providing some means of controlling the flow of paper stock through the mill. was. The 4% consistency contaminant is then passed through a large mesh screen which filters out bulky foreign matter such as glass bottles, cans, metal chunks and other coarse debris.

The extractor screw is a type of thickener that removes water from the stock stream as it passes longitudinally through a vessel containing a slow rotating screw. The second type of 7-tuckner is a press that squeezes additional water from the raw stream. The water removed by the thickener from a +30% consistency contaminant stream to a 30% consistency contaminant stream is typically returned to the pulp disintegrator by an I pump. A contaminant stream of 30° consistency then has a flow rate of about 10 Or
It is fed into a digester, which is a sturdy pressure vessel surrounding a large metal screw that rotates slowly at pm. It also receives post-cooking steam, which steam transports contaminants to about 149°C (300°C).
(lower) and pressurizes the digester as it passes through the digester. The digester is sometimes referred to as the “steaming tube”. Upon exiting the digester, contaminants are absorbed by the heating action of the steam,
The steam was dispersed through the loop by pressurization and screws.

This raw stream with dispersed contaminants is changed from a 30% consistency to a 4% consistency by pumping water into it. The dispersed contaminant raw stream of 4% consistency is then passed through the 2
It passes through a refiner, which is a heavy-duty pressure vessel with two opposed rotating disks. Typically, the finishing machine desk rotates at about 1600 rpm. The raw material is fed into the center of two rotating elements with radially extending ribs on opposite faces, with a relative motion between the rotating disks of 4%.
Mechanically acts on the dispersed contaminant material in consistency, moving it from the center of the disk to the periphery of the disk and from the refiner to other holding tanks. The dispersed contaminant in this holding tank can be processed into paper, for example by a Fordrinier machine. Typically, this stock is used to feed the second headbox of a Fordrinier machine or the liner butt of a combination board machine.

The asphalt dispersion device thus processes the raw gold slurry that reaches the paper machine. Such treatment of gold mud with an asphalt dispersion device causes hemicellulose extraction from the gold mud. The reason for this is that asphalt dispersion equipment is characterized by high heat over long periods of time. Such hemicellulose extraction reduces fiber strength and bonding, thereby reducing paperboard strength.

In addition to having the disadvantage of weakening the strength of the final paper product, asphalt dispersion equipment is very expensive to provide and operate. Thickeners and digesters are slow and parts are very expensive.

Both of these must be large enough and sturdy enough to take the pressure of steam and the pressure of moving parts in a contaminant gold slurry used by paper mills. It won't happen.

In addition, high-power water pumps and chests are required at various locations to accommodate changes in flow consistency, such as those required by asphalt dispersion processes.

A typical asphalt dispersion device costs between $300,000 and $500,000, depending on the precision of the thickener. A less precise thickener costs $300,000!
Although there is a tendency to keep it in the low range, these obviously require a lot of maintenance. The operating cost of a typical asphalt dispersion equipment is approximately $13 per ton. A considerable amount of steam is required to process raw gold mud, and the cost of obtaining this steam is also important. Thickener maintenance costs are also important, especially in the case of older, less precise thickeners still used by many manufacturers for recycled stock.

These costs have prompted some paper mills to omit the asphalt dispersion system in favor of a multiple sieving or screening system in which the contaminant stream passes through a series of screens. The latter screen has a smaller diameter than the former screen, and the latter screen has holes of a different shape, such as slots versus sun. After this sieving, the raw material stream passes through a refiner. Since screens are less costly than thickeners and digesters and eliminate the need for steam, this equipment is a lower cost alternative to asphalt dispersion equipment.

Even if small particle contaminants remain after sieving, they are dispersed in the refiner, so the visual quality of the final product from pulp processed through the asphalt dispersion system is It is not usable to the extent that it has.

Whole-stream chemical treatment has been used in conjunction with both asphalt dispersion and screening systems. Typical chemicals added to the raw stream are a combination of organic dispersants, wetting agents, and inorganic materials such as talc. These chemicals promote the dispersion of organic contaminants, breaking up particles of such contaminants and keeping them dispersed so that they do not agglomerate and form significant run-in in the final paper product.

Such stains cause the quality of the final paper product to be of an unacceptable, widely scattered grade. The amount of chemicals required to process the complete material constitutes an important part of the operating cost.

[Problem to be solved by the invention]

A first object of the present invention is to provide a method and apparatus for improving the quality of recycled pulp produced from secondary fibers.

It is also an object of the invention to provide a method and a device making it possible to increase the proportion of secondary fibers in the production of laminated paperboards or papers such as A'-.

Another object of the present invention is to disperse and emulsify contaminants associated with secondary fibers used in paper manufacturing to eliminate visual quality problems associated with such contaminants in the final paper product. An object of the present invention is to provide a method and apparatus for doing so.

Another object of the invention is to provide a method and a device making it possible to increase the proportion of secondary fibers in the production of laminated paperboard without complete steam treatment.

Yet another object of the present invention is to provide a method and apparatus that allows the use of increased proportions of secondary fibers in the production of laminated paperboard without requiring the application of high heat over long periods of time.

Another object of the invention is to enable the use of increased proportions of secondary fibers in the manufacture of laminated paperboard without reducing the strength of the paperboard.

Another object of the present invention is to provide a method and apparatus for increasing the proportion of secondary fibers in the production of laminated paperboard without resulting in a reduction in fiber strength and bonding.

Another object of the present invention is to provide a method and apparatus that allows the use of an increased proportion of secondary fibers in the production of laminated paperboards, which does not result in the extraction of hemicelluloses.

Yet another object of the present invention is that it must be disposed of, for example by landfilling. It is an object of the present invention to provide a method and apparatus for increasing the proportion of secondary fibers used in the production of laminated paperboard without increasing waste.

Still another object of the present invention is to provide a method and apparatus for increasing the proportion of secondary fibers used in the manufacture of laminated paperboard that reduces the cleaning and maintenance required to maintain productivity of paper machines. It is to be.

Additional objects and advantages of the invention will be set forth in part in the description below, and in part will be obvious from the description, or may be learned by practice of the invention.

[Means to solve the problem]

The objects and advantages of the invention may be realized and attained by means of the instruments and combinations particularly pointed out in the claims.

It is an object of the present invention to improve the quality of paper produced from contaminated fiber stock having secondary fibers and contaminants smaller than a given size and having a specific gravity close to that of the white water used in the production of recycled stock. achieved by a device that improves

The apparatus of the invention advantageously includes a hydraulically operated amplifier having a mixing chamber connected to each of a steam inlet, a stock inlet, a chemical feed inlet, an overflow outlet and a Venturi tube. The material inlet receives contaminated fiber material and supplies it to the mixing chamber. The steam inlet allows steam to enter the mixing chamber where it mixes with the matrix and transfers its energy to the contaminated fiber matrix as the steam condenses.

This increases the pressure and temperature of the contaminated fibrous material from the temperature and pressure of the material at the material entrance. The Venturi tube is located downstream from the mixing chamber and between the mixing chamber and the outlet of the amplifier. This Venturi tube increases the pressure of contaminated fibrillar material passing through the Venturi tube. Emulsifying chemicals are fed into the mixing chamber by a chemical feed inlet and mix with the contaminated fiber material and steam so that the contaminants dispersed in the contaminated fiber material are emulsified. Contaminants in the fibrous material are subjected to heat and cavitation forces in the Venturi tube, dispersing the contaminants and making them available for action by emulsifying chemicals. - When the poikilothermic compound reaches the outlet, the contaminated fibrous material has dispersed contaminants that have been emulsified and the fibrous material has a pressure and temperature substantially lower than that of the contaminated fibrous material received at the material inlet. exists at high pressures and temperatures.

Furthermore, the device of the invention advantageously transports the dispersed and emulsified heated contaminant from the outlet of the amplifier device to a device that receives hot water and secondary fibers and converts this into the contaminant fiber matrix. It has a device to change it.

The pulp disintegrator advantageously has a device for receiving hot water and secondary fibers and converting them into contaminated fiber material. The term "recycled paper product" is used interchangeably with the term "secondary fiber." Contaminated fiber material is a slurry containing fiber material and contaminants.

Additionally, the apparatus of the present invention converts the slurry into an accepted fibrous material suitable for use in the manufacture of paper products.
5tock) and waste fiber material containing contaminants (re
5tock). The slurry separation device advantageously includes a device for removing contaminants heavier than water from the contaminated fiber material and a device for separating the fiber material into used fiber material and waste fiber material.

Furthermore, the apparatus of the present invention includes a device for removing contaminants heavier than water from the contaminated fibrous material.

The water-heavy contaminant removal device advantageously includes a cyclone separation device for removing foreign objects such as bottles, cans, metal chunks and other debris.

Furthermore, the apparatus of the present invention includes a device for separating the fibrous material into used fibrous material and waste fibrous material. The raw material separation device advantageously has a pressure sieving device that receives the contaminated raw material stream from the cyclone separator. A pressure sieving device separates this stock stream into used fiber stock and waste fiber stock. The fibrous material used generally does not have particulate matter larger than the initial predetermined size because it has passed through a sieving device under pressure. If larger capacity is desired, multiple sieving devices can be used.

Waste fibrous material contains material that could not pass through the sieving equipment under pressure and therefore includes all particulate matter larger than the original predetermined size that was removed from the used fibrous material by the pressure sieving equipment. contains.

Furthermore, the device of the invention has a sizing particle removal device. The sized particle removal device advantageously includes a vibratory sieving device for removing particulate matter larger than a predetermined size from the waste fiber material coming from the waste stream of the pressure screen. The particles removed by the vibratory sieving device form waste, and the contaminant used contains fibrous material and particulate matter smaller than a predetermined size. The waste contains fibrous material and particulate matter larger than a given size.

Additionally, the apparatus of the invention includes a device for controlling the flow of contaminated raw materials. This flow control device advantageously includes a pump and a holding tank. This holding tank is advantageously connected to a vibratory sieving device for receiving contaminated working material.

The pump pumps the contaminated feedstock from the containment tank and supplies the contaminated feedstock to the hydraulically operated amplifier in a controlled and regulated manner.

Furthermore, the apparatus of the present invention includes a device for selectively diverting contaminated workpiece of the sizing particle removal device from the amplifier device to the conveying device.

This selective diversion device advantageously has a valve located in the conduit connecting the vibratory sieving device to the receiving tank for supplying the contaminated working material from the outlet of the vibratory sieving device to the receiving tank. Additionally, a selective diversion device is connected at one end to the valve;
It has a tube connected at the other end to a second valve which also has a conduit leading to each of the pulp disintegrator and amplifier device. Thus, the two valves can be operated in a short circuit directing the feedstock stream from the vibratory sieving device to the pulp disintegrator rather than to the holding tank.

The object of the present invention is also achieved in a method for producing recycled paper stock using a pulp disintegrator. The method of the invention improves the quality of paper produced from contaminated fiber stock containing secondary fibers and contaminants smaller than a predetermined size and having a specific gravity substantially equal to the specific gravity of the stock production white water. belongs to. The method of the present invention includes the steps of mixing contaminated fiber material and steam in a mixing chamber to increase the pressure and temperature of the contaminated fiber material. This is advantageously achieved by supplying steam and contaminated fiber material to a mixing chamber of a hydraulically operated amplifier device.

The method further includes the step of mixing the contaminated fiber material with a chemical agent that causes emulsification of the contaminated material dispersed in the paper stock. This is advantageously achieved by feeding the emulsifying chemical and the contaminated fiber substance into the mixing chamber of a hydraulically operated amplifier device.

The method further includes dispersing the contaminants by passing the mixture of contaminated fiber material, steam, and emulsifying chemicals through a Venturi tube to apply cavitation forces to the contaminants in the contaminated fiber material, so that the contaminants are dispersed and dispersed. It has a process of making emulsified contaminated raw materials. Therefore, the pressure and temperature of the contaminated stock material is increased from the pressure and temperature of the contaminated stock material in the mixing chamber. This step is advantageously accomplished in the venturi section of a hydraulically actuated amplifier.

Additionally, the method of the invention includes the step of returning the heated contaminated feed stock, in which the contaminants have been dispersed and emulsified, to the Grug disintegrator. This is advantageously achieved by plumbing a heated contaminated feedstock conduit from the outlet of the hydraulically operated amplifier to the pulp disintegrator.

The method further comprises the steps of: combining hot water and secondary fibers in a Gurg disintegrator and converting this mixture into contaminated fiber material. This step is advantageously accomplished by a nofpulp disintegrator that receives, refines and mixes the hot water and secondary fibers to form a contaminated fiber matrix.

The method also includes the step of removing substantially all of the larger contaminants, which are heavier than water, from the contaminated fibrous material. This step is accomplished by passing the contaminated fibrous material through a cyclone separator that removes large foreign objects such as bottles, glass, and metal chunks.

Furthermore, the method of the present invention includes the step of separating the contaminated fiber raw material into used raw material and waste raw material. This step is advantageously accomplished by passing the contaminated material from the cyclone separator to a pressure sieving device which removes particulate material larger than a first predetermined size to produce a workable material.

The method further includes the step of removing particulate material larger than a second predetermined size from the waste material. This step is advantageously accomplished by a vibratory sieving device which receives the waste material from the pressure sieving device and removes all particulate material larger than a second predetermined size to produce the material for use. The contaminated material contains fibrous material and particulate matter smaller than a second predetermined size.

The method of the invention has a further step of creating a flow of contaminated feedstock coming from the vibratory sieving device. This is accomplished by providing a holding tank to receive the contaminated spent material and, if necessary, providing a pump to pump a controlled amount of contaminated working material from the holding tank. In this case the pump is
Provides a predetermined flow of contaminated feedstock to a hydraulically operated amplifier.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate configurations of the present invention, including preferred configurations, and
The principles of the invention will now be explained along with the description.

〔Example〕

Next, preferred configurations of the present invention, examples of which are shown in the drawings, will be described in detail.

According to the present invention, secondary fibers and contaminated fiber stock having contaminants smaller than a predetermined size and having a specific gravity approximately equal to the specific gravity of white water used in the production of recycled paper stock are produced. A device is provided to improve the quality of paper. The apparatus according to the present invention mixes contaminated fibrous material with steam and emulsifies chemicals, exposes the fibrous material contaminants to heat and cavitation forces to produce dispersed contaminants, and the fibrous material contains pressure and It has a hydraulically operated amplifier device which increases the temperature. As described herein and illustrated, for example, in FIGS. 1 and 2, a hydraulically operated amplifier device generally includes a hydraulically operated amplifier generally designated by the numeral 12 in FIG. is preferred. The hydraulically operated amplifier 12 is
US Patent No. 4 by Nicodemus
No. 569,635 (which U.S. patent specification is hereby incorporated by reference);
is known under the trademark and is available from the assignee of this patent application. The hydraulically operated amplifier 12 comprises a housing 13, a mixing chamber 14, a steam inlet 16 connected to the mixing chamber, a mass inlet 13, a chemical supply inlet 20.
and an overflow outlet 22. ...Unong 13 is
The mixing chamber 14 is contained inside the housing 13, having an inner wall 15. A Venturi tube 24 (schematically shown in dotted lines in FIG. 2) has an inlet 17 leading to the mixing chamber 14 and an outlet 25 connected to an outlet 26 of the hydraulically actuated amplifier 12. The raw material inlet 18 is a nozzle 28
It is connected to the. The substrate inlet 18 and the nozzle 28 are
The housing has a device for feeding waste fibrous material and contaminants through the housing 13 in the form of a liquid column that is not substantially in contact with the inner wall 15 of the housing. Steam inlet 16 has a device for supplying steam into the interior of housing 13 for engaging a column of waste material flowing through housing 13 .

The hydraulically actuated amplifier 12 has an outlet 26 that communicates with the end of the venturi tube 24 opposite the end of the venturi tube 24 that communicates with the mixing chamber 14 . Advantageously, the outlet 26 is connected to a right-angled tubular joint, such as the cross joint shown in FIG. Hydraulically operated amplifier 1
The flow of contaminated fibrous material discharged from the outlet 26 of 2 is turned at right angles inside the cruciform joint connected to the withdrawal pipe 21.

A stainless steel plug 23 is provided to seal the outlet of the cruciform 19 which is connected to the outlet 26 of the hydraulically operated amplifier 12.
It's on the opposite side of exit 9. The flow leaving the hydraulically actuated amplifier 12 via the outlet 26 impinges on the inside of the plug 23 and causes significant wear of the plug 23, in which case the song can be replaced if necessary. . The right angle bend in the flow exiting the outlet 26 thereby facilitates thorough mixing and heat transfer of the liquid leaving the outlet 26 of the hydraulically actuated amplifier due to the cross joint.

According to an alternative embodiment of the invention, a processing device is provided for converting the waste fibrous material containing contaminants into a mixture of fibrous material and dispersed contaminants of reduced size.

The processing device includes a housing having an interior wall, an outlet and an inlet for receiving waste fibrous material and contaminants. Additionally, the processing device includes a device for feeding waste fibrous material and contaminants through the hose in the form of a liquid column that is substantially not in contact with the interior walls. Additionally, the processing device includes a device for supplying steam into the interior of the housing for engagement with a column of waste material flowing through the housing. As described herein and illustrated in FIGS. 1 and 2, the processing device preferably comprises a hydraulically operated amplifier 12.

In operation, contaminated fibrous material is received through the material inlet 18 and flows through the nozzle 28, resulting in steam 30;
This steam flows through the central part of the mixing chamber 14. Raw material stream 30 flows away from the walls of mixing chamber 14 . Stream 30 consists of a liquid column of fibrous material and contaminants that flows substantially without contact with the interior walls of housing 13. To point out that the steam is supplied to the mixing chamber 14 via the steam inlet 16, the steam is represented by the arrow indicated at 32 emanating from the steam inlet 16 and is connected to the raw material stream 3.
0, condensing the stock stream 30, transferring energy from the vapor to the stock, heating the stock and increasing the stock pressure by the temperature and pressure of the stock entering the mixing chamber 14. The emulsifying chemical enters through the chemical feed port 20 and its action on contaminants in the fiber matrix is increased by the heat provided by the steam. emulsifying chemicals,
When the mixture of steam and contaminated substrate flows through the Venturi tube 24 under the influence of gravity, cavitation forces and heat are applied to the contaminants and fiber flakes in the substrate. The combined action of heat and cavitation forces disperses the contaminant, and the emulsifying chemical acts on the dispersed contaminant, emulsifying the contaminant and converting this contaminant into something other than the emulsifying chemical. Prevents from clumping or sticking. Cavitation also destroys wet flakes that may be present in the contaminated fiber matrix. Substantially all of the flow is condensed as the mixture leaves Venturi tube 24. The pressure and temperature of the stock at the outlet 26 is substantially higher than the pressure and temperature of the stock received by the stock inlet 16.

The overflow outlet 22 is used during start-up operation of the hydraulically actuated annulifier 12 until proper mixing of the emulsifying chemical stream and raw material stream is achieved for the steam flow and pressure. Typically, about 378.5313 per minute (
(i0ONon) (D) A hydraulically operated amplifier receiving a raw material flow has a chemical flow of about 0.02 to 0.04 gallons per minute and a saturated Approximately 180 per hour
A steam flow of 0 kg (approx. 4000, f?nd) is required.

All emulsifying drug formulations are suitable for use in the system. One suitable formulation of an emulsifying chemical includes the following components in weight ratios: 3 parts water
0% diglopylene glycol monomethyl ether
10% sesquioleate 5%
Sodium salt of tall oil fatty acids 5% ethoxylated alcohol 4% odorless mineral spirits 35% The above ingredients can be varied over the following weight ratio ranges according to the needs of the user: Water 78~
30% nonokuchi birene glycol monometele ether
2-1O chisesquioleate 2-5
% tall oil fatty acid sodium salt 2-5%
Ethoxylated alcohol 2-4% Ethoxylated nonylphenol 2-8% Odorless mineral spirits 10-35% Further according to the invention:
Apparatus is provided for receiving hot water and secondary fibers and converting them into contaminated fiber material. As described herein and illustrated in FIG. Includes pulp disintegrator. Pulp disintegrator 34 receives process water, white water, from pipe 35 . The secondary fibers are also fed to a pulp disintegrator 34, in which case the pulp disintegrator has rotating blades for disintegrating the secondary fibers softened by water. Preferably, at least a portion of the water received by the pulp disintegrator is hot water to facilitate disintegration of the secondary fibers into contaminated fibrillar material. Preferably, the hot water is supplied to the Nokluzo disintegrator 34 exclusively via a return pipe 44, which is explained more fully below. A discharge container 36 may be provided to receive the contaminated fibrillar material leaving the disintegrator 34 and to facilitate storage of the contaminated fibrillar material.

Furthermore, according to the invention, a device is provided for conveying the heated contaminant with dispersed and emulsified contaminants from the outlet of the hydraulically operated amplifier device to the pulp disintegrator. As described herein and illustrated in FIG. 1, an apparatus for conveying total contaminants with dispersed and emulsified contaminants from the outlet of a hydraulically operated amplifier apparatus to a pulp disintegrator , manifold 33, outlet pipe 40. It has a pipe device including an on-off valve 42 and a return pipe 44. A manifold 38 is connected to each outlet 26 of each hydraulically operated amplifier 12 and receives heated contaminants with dispersed and emulsified contaminants from the respective hydraulically operated amplifier. . The manifold 38 is guided into an outlet pipe 40 which conveys the heated contaminant with dispersed and emulsified contaminants to the shut-off valve 42 .

The return pipe 44 has one end connected to the on-off valve 42 and the other end guided to the pulp disintegrator 34. The pressure of the contaminant leaving the outlet 16 of each hydraulically actuated amplifier 12 causes this material to move through the manifold 33, outlet pipe 4o, on-off valve 42 and return pipe 44 without any mechanical pumping device. is sufficient. Additionally, a pressure valve may be provided at the end of the return pipe 44, which return pipe is /? The pulp disintegrator 34 is opened to prevent contaminants from scattering into the white water present in the pulp disintegrator 34.

Providing white water to the pulp disintegrator 34 from the outlet 26 of each hydraulically operated amplifier 12 is highly desirable to facilitate disintegration of the secondary fibers into contaminated fiber matrix by the pulp disintegrator 34. It is. Additionally, the pressure of the contaminant leaving the outlet 26 of each hydraulically actuated amplifier 12 makes it unnecessary to provide a mechanical pumping device to convey the stock to the pulp disintegrator 34.

Furthermore, according to the invention, a device is provided for removing contaminants heavier than water from the contaminated fibrous material. As described herein and illustrated in FIG. 1, a device for removing contaminants heavier than water from contaminated fibrous material may be connected to the discharge vessel 36 depending on the desired configuration. and a cyclone separator 46 which may be connected to the pulp disintegrator 34
Consisting of Cyclone separator 46 uses centrifugal force to separate contaminants heavier than water. This cyclone separator is a high-volume separator that separates even large objects from contaminated fibrous material.

Examples of the types of contaminants separated by cyclone separator 46 include glass bottles, cans, metal debris, rocks, and sand. The bulk contaminants removed by the cyclone separator 46 fall to the bottom of the cyclone separator 46 and are collected there until removed. Cyclone separator 4
6 is an example of a specific gravity determination and removal device. This is because the removal device removes contaminants which have a higher specific gravity than the water with contaminant fibrils.

Furthermore, according to the invention, a device is provided for separating contaminated fiber material into used fiber material and waste fiber material. As described herein and illustrated in FIG. 1, an apparatus for separating fibrous material into used fibrous material and waste fibrous material receives contaminated fibrous material from cyclone separator 46 and It consists of a pressure sieving device 48 that passes this raw material through a sieve having a predetermined opening size depending on the requirements of the system. The stream of contaminated fiber material passing through this pressure sieving device consists of used fiber material, and the stream that cannot pass through the pressure sieving device consists of waste fiber material. The fibrous material used is lighter than water and substantially free of particulate matter larger than the predetermined size of the aperture of the pressure sieving device. As contaminated fibrous material moves through the pressure sieving device 48, particulate material flows to a lower portion of the pressure sieving device 48 and is collected therein for removal with the stream of waste fibrous material. . The raw materials used from the pressure sieving device 48 are:
A paper processing tube 50 feeds a paper machine (not shown). The stock stock may be passed through a sifter or sifter before it is fed to the paper machine.

Pressure sieving device 48 is primarily a sizing contaminant removal device. This is because the device removes contaminants based on their size. Further, the pressure sieving device 48 is a raw material separation device. This is because the device separates an incoming stream of raw material into at least two outgoing streams of raw material, each outgoing stream containing contaminants that are removed by a pressure sieving device. This is because they have different characteristics depending on the object.

A second pulp disintegrator, such as a turbo separator (not shown), could be used in place of pressure sieving device 48. Simply put, a turbo separator is a device that can remove both heavy and light contaminants. A second pulp disintegrator separates contaminants from the raw material stream by operating centrifugal force. The tar separator has some disadvantages over pressure sieving equipment in removing contaminants, but has some advantages in disintegrating stock.

Typically, the substrate is tangentially moved to the second separator body.
It is injected into the pulp disintegrator and subjected to rotational speed by a rotor. When the stock moves along the wall of the separator under the influence of the rotor, heavy and light particles are separated from the stock stream by vortex action. Heavy weight contaminants are
Collected in the waste trap, and No. 2-4? Leave the Lupu disintegrator. The heavy weight contaminants leaving the second pulp disintegrator are
It is passed through a cyclone and removed from the system. Also, par,
The line is provided to remove light weight contaminants.

Further in accordance with the invention, a sizing particle removal device is provided for removing particulate matter larger than a predetermined size from the stream of waste fibrous material. As described herein and illustrated in FIG.
It consists of a vibrating sifting device 52 connected to the pressure sifting device 48 to receive the waste fiber material from the pressure sifting device 48. The vibratory sieving device 52 may be connected to the cyclone separator 46 or to the discharge vessel 36 or to the pulp disintegrator 34, if necessary, depending on the configuration of the system.

The vibratory sieving device 52 includes an inlet box 56 that receives the incoming material. Further, the protoplasm crosses the weir 58 and passes through the sieve plate 60.
The sieve plate is generally provided with holes or slots each ranging from 2 to 6 mm in diameter or width.

The sieve plate 60 is supported by a pedestal 62 that is connected to a spring 64. A motor (not shown) and a camshaft arrangement (not shown) are also coupled to the pedestal 62;
The speed of the motor therefore determines the frequency of the sieve plate 60. The total number of cam stages determines the distance over which the sieve plate 60 oscillates.

When the sieve plate 60 moves upwards relative to the flow direction of the contaminant, the used stock passes through the sieve plate into the lower chamber and leaves the vibratory sieving device 52 by gravity. Due to the vibrating forward movement of the sieve plate 6o, the waste material moves along the surface of the sieve plate 60 and falls into the dumping device. Typically,
A low volume shower (from about 18.951 to about 56, B51 (5 to 15 gallons) per minute at the waste end of the sieve plate 60
(not shown) serves to separate out fibers entrapping contaminants, allowing for fiber acceptance and keeping fiber loss to a minimum.

The aperture size of the sieve plate of the vibratory sieving device 52 is typically in the range of 73 to 93 tenths of an inch. The opening dimensions of the vibrating sieving device 52 can be varied depending on the requirements of the system. The aperture size of the sieve plate must be large enough to keep fiber loss to a minimum. Typically, the efficiency of vibratory sieving equipment varies by 20-40 inches in removing contaminants. The contaminants are actually removed from the system as waste material by the vibrating sieving device, as indicated by the wide arrows designated 54 in FIG. The raw material coming from the vibratory sieving device 52 therefore contains a significant amount of contaminants, which contaminants are smaller than the aperture size of the sieve plates of the vibratory sieving device 52 . Also, if the opening size of the sieve plate is increased, the capacity per ton that can be processed by the vibratory sieving device 52 increases, but the efficiency of contaminant removal decreases commensurately.

Furthermore, according to the invention, a device is provided for controlling the flow of contaminated raw materials. As described herein and illustrated in FIG. 1, the apparatus for controlling the flow of contaminated waste material includes a holding tank 66 and a pump 68. A holding tank 66 receives the contaminated feedstock from the vibratory sieving device 52 and stores it for post-processing.

The holding tank 66 contains a reservoir of contaminated use material which is pumped by a pump 68 at a predetermined flow rate to an amplifier supply manifold 70 from which the respective hydraulically actuated amplifiers are fed.
The contaminated fiber material is supplied to the refiner 12 . The bong 7'68, cooperating with the containment tank 66, can maintain the flow of contaminated fibrous material at a constant flow rate and at a specific flow rate determined by the requirements of the hydraulically actuated clarifier 12. The reservoir of contaminants in the holding tank 66 ensures that the predetermined flow to be obtained by the bong 7'68 is available for pumping by the pump 68.

Typically, the holding tank 66 is equipped with a device for maintaining the level of fibrous material in the tank within a range that prevents both overflowing the holding tank 66 and emptying of the tank. There is.

Such a liquid level maintenance device is illustrated in FIG. 1 by the box designated 67 and the white water storage tank designated 78.

Furthermore, according to the invention, a device is provided for selectively diverting contaminated raw material. As described herein and in the first
As illustrated in the figure, the device for selectively diverting contaminated raw materials includes an on-off valve 42, a second on-off valve 72, and a diverting pipe 7.
Consists of 4. Contaminated fibrous material is obtained from the feed material flow coming from the vibratory sieving device 52 through the second on-off valve 72 . One end of the diverter tube 74 is connected to a second on-off valve 72, which therefore supplies contaminated work material directly to the holding tank 66 and optionally to a hydraulically operated amplifier 12. The diverter tube 74 can be operated to pass through the diverter tube 74, or can still be operated to feed the contaminated waste material directly to the diverter tube 74. The other end of the turning tube 74 is
It is connected to the on-off valve 42, and this on-off valve is connected to the turning pipe 7.
4 can be operated to connect to return pipe 44 and pulp disintegrator 34. Therefore, two on-off valves 2,
By operating 72, the flow of contaminated work material from the vibratory sieving device 52 is directed to the hydraulically operated amplifier 1.
Instead of being processed by 2, the disintegrating machine 34
can be returned to. The selective diversion device according to the invention comprises:
It is possible to shut off the hydraulically operated amplifier if it is not desired to operate the hydraulically operated amplifier. This may occur while repairing the Imp 68 or hydraulically operated amplifier, ie, when it is not desired to operate the hydraulically operated amplifier portion of the regenerant purification system.

Although not shown in FIG. 1, contaminated fiber stock from pulp disintegrator 34 can be fed directly to the stock inlet of one or more hydraulically operated amplifiers. Raw material streams exiting some of the various components can optionally be fed directly to one or more hydraulically operated amplifiers. However, this system is most effectively operated in the configuration shown in Figure 1 for applications where it is desired to improve the external quality of the paper obtained from the secondary fibers entering the pulp disintegrator. . The purification effectiveness of the hydraulically operated amplifier section of the system is most accentuated when this section is connected to receive the used fibrous material from the pressure sieving device 48 via the paper processing tube 50. However, this arrangement is very expensive and may not be economical based on the degree of improvement in paper quality obtained from stock so treated. However, by processing the waste fiber stock through a pressure sieving device +8, the quality of paper obtained from the stock used is
It is sufficiently improved to justify the investment in equipment and the associated operating costs of this equipment.

One or more auxiliary pumps 6 can be provided at different points in the system as required.

The operation of the device according to the invention will now be described with reference to FIGS. 1 and 2. FIG.

No J? Lupu disintegrator 34 is filled with white water obtained via line 35 from one of the sources of treated water used in the system. Secondary fiber is NoJ? It is discharged at the top of the pulp disintegrator 34 and contains all types of waste material, paper and contaminants. Some of the contaminants are bulky contaminants such as large bottles, cans, large pieces of metal, and glass. Some pollutants are lighter than water and some are heavier than water. Some of the contaminants consist of sticky or fibrous materials that tend to clump and stick together and to processing equipment. Some of these contaminants dissolve and disperse under the application of heat and pressure, and some change their shape through the openings of some sieving devices used by the processing equipment to remove the contaminants. It is deformed to such an extent that it can pass through.

According to a preferred configuration of the invention, the hot water is supplied to the pulp disintegrator exclusively by a heated stream of contaminated fiber material leaving the outlet 26 of each hydraulically operated amplifier 12. The greatest positive effect is obtained by supplying hot water to the pulp disintegrator in place of other components of the apparatus. This is because, in the case of pulp disintegrators, hot water facilitates the disintegration of the secondary fibers into fibrillar material.

Additionally, it is undesirable to supply heat to any of the decontamination components of the device. This is because the heat causes a large number of contaminants to become flexible so that they deform and slide through the sieving structure of the contaminant removal component.

Contaminated fibrous material leaves the pulp disintegrator 34 through its bottom and is received in a discharge vessel 36. Auxiliary pump 7
6 can be used to pump contaminated fibrous material from the discharge vessel 36 to the inlet of the cyclone separator 46. Substantially all of the heavy weight contaminants are removed from the contaminated fibrous material by the cyclone separator 46 and collected at the bottom of the cyclone separator.

The contaminated fibrous material leaving the cyclone separator 46 is fed directly to the inlet of a pressure sieving device 48 .

The contaminated fibrous material is separated into at least two different streams of fibrous material by a pressure sieving device 48, in which case the pressure sieving device 48 separates a predetermined amount of fibrous material from one of the separated streams of fibrous material. Remove contaminants larger than the dimensions. The contaminants are not removed from the system, but rather are substantially contained in another separated stream of fibrous material, in which case the other stream is referred to as waste material. Pressure sieving device 48
The raw stock from is fed to the paper machine. Furthermore, the raw material used can be post-treated by screening or passing through a refiner before being fed to the paper machine. This feed stock is typically fed to a second flow box of a long steel paper machine.

The waste material is fed to an inlet box 56 of a vibratory sieving device 52. In addition, the vibrating sieving device removes contaminants larger than a predetermined size of the opening of the sieve plate, and this contaminant is
Substantially removed from the system as waste material. Vibrating sieving device 5
The raw material stream from 2 is fed to a holding tank 66. If desired, an auxiliary pump 76 can be used to pump work stock from the vibratory sieving device 52 to the holding tank 76. The treated white water can be supplied to the holding tank 66 from the white water storage tank 78 .

The contaminated fiber material is pumped from the holding tank 66 by the bomb f6B and supplied to the manifold 70;
In this case, this manifold supplies contaminated fiber stock to the stock inlet 18 of each hydraulically actuated amplifier 12.

Steam is routed to each steam inlet 16 of each hydraulically actuated amplifier 12 via a steam manifold 82.
is supplied to It is notable that the only steam required by the invention is that supplied to each hydraulically operated amplifier 12. Additionally, this steam provides heat that is used to supply hot water to the pulp disintegrator 34 via return pipe 44 from the outlet of each hydraulically operated amplifier. Yet, this steam increases the pressure of the contaminated fibril material sufficiently to pump it out of the outlet of the hydraulically operated amplifier and into the pulp disintegrator. Generally speaking, it weighs approximately 6.3 kg and 7 c.
m2 (90 psja) of steam is suitable for operating the hydraulically operated amplifier 12.

The emulsified chemical is transferred from the emulsifying chemical reservoir 84 through the chemical manifold 86 to each chemical supply line 2 of each hydraulically actuated fire 12.
0. During start-up of each hydraulically operated amplifier, contaminant fibrous material leaves the respective hydraulically operated amplifier via the overflow outlet 22 until the hydraulically operated amplifier reaches thermal equilibrium. This usually takes between 30 seconds and 3 minutes. Contaminated fiber material discharged from each hydraulically operated amplifier 12 via overflow outlet 22 is returned to holding tank 66 via overflow discharge pipe 80 .

Steam, contaminated fibrous material and emulsifying chemicals are mixed in a mixing chamber of a hydraulically operated amplifier. The contaminated fibrous material condenses the vapor and energy is transferred to the contaminated fibrous material in the form of heat and pressure. The heat increases the action of the emulsifying chemicals so that all dispersed contaminants are suspended and emulsified within the contaminant fibrous material. The hydraulically actuated amplifier has a Venturi tube that compresses the flow of contaminated fibrous material, increases the pressure of the contaminated fibrous material, and reduces cavitation forces to the contaminants in the contaminated fibrous material. Feed to moist flakes consisting of contaminated fibrous material. This cavitation force disintegrates the wet flakes and disperses contaminants.

Once the contaminant is dispersed, the emulsifying chemical suspends the contaminant and prevents it from agglomerating or sticking anywhere on the processing equipment surface. The increased pressure of the contaminated fibrous material is used to pump the contaminated fibrous material from the outlet of the hydraulically operated amplifier to the pulp disintegrator. This eliminates the need for any auxiliary pumps in the process tube legs of the device.

When the heated contaminated fiber material is pumped into a pulp disintegrator, heat is transferred to the contents of the disintegrator to facilitate disintegration of the incoming secondary fibers.

Apparatus and methods according to the present invention use cavitation forces and heat to disaggregate waxes, glues, polymeric films, and other contaminants to colloidal size, which further resembles that of emulsifying chemicals. stabilized at The wet strength fiber flakes are also disintegrated into individual paper pulp fibers by cavitane compression and heat.

Any residual emulsified product entering the pulp disintegrator is useful for use with any dispersed contaminants that may arise during any step of the process carried out by the apparatus.

All the steam is fed to a hydraulically operated amplifier, where the steam increases the temperature of the stock, creates cavitation forces, and cools the stock sufficiently to send the stock back to the pulp disintegrator. It can be most effectively used to increase pressure and improve the chemistry of emulsifying chemicals.

The contaminant cleaning action of the hydraulically operated amplifier allows the use of larger holes in the vibratory sieving device and increases the yield of usable pulp from the vibratory sieving device. This also increases the throughput capacity of the vibratory sieving device and, finally, the capacity of the device and method according to the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made to the apparatus and method for improving the quality of paper made from secondary fibers without departing from the scope or spirit of the invention. That's true. It is therefore intended that this invention covers the modifications and variations of this invention that come within the scope of the appended claims and their equivalents.

[Brief explanation of the drawing]

FIG. 1 is a schematic view schematically showing the configuration of the present invention, and FIG. 2 is a perspective view schematically showing some components of the configuration of the present invention shown in FIG. 12...Hydraulically operated amplifier, 13...Housing, 14...Mixing chamber, 15...Inner wall, 16...
...Steam inlet, 17...Inlet, 18...Material inlet,
19... Cross joint, 20... Chemical supply port, 21
゜40... Outlet pipe, 22... Overflow outlet, 23...
・Stainless steel plug, 24...Venturi tube, 25
... Outlet, 26... Outlet of hydraulically operated amplifier, 28... Nozzle, 30... Raw material flow, 32...
steam, 34...pulp disintegrator, 36...discharge container,
42... Opening/closing valve, 44... Return pipe, 46... Cyclone separator, 48... Pressure sieving device, 5o... Paper processing tube, 52... Vibrating sieving device, 54...・Scrap material, 5
8... Sewer, 60... sieve plate, 62... pedestal, 64
... Spring, 66 ... Accommodation tank, 68 ... Pump, 70 ... Amplifier supply manifold, 72
...Second on-off valve, 74...Diversion pipe, 76...Auxiliary pump, 78...White water storage tank. Jji・2 Procedural amendment (method) % formula % 2. Name of the invention Apparatus and method for improving the quality of paper obtained from secondary fibers 3. Person making the amendment Relationship to the case Patent applicant name E. ZE Products Inc. Holaterra P4, Agent May 31, 1985 (Shipping port) 6, Subject of amendment (i) Column for patent applicant representative in the application (2) Drawings (3) )power of attorney

Claims (1)

[Claims] 1. In an apparatus for improving the quality of paper obtained from secondary fibers: a pulp disintegrator that receives hot water and secondary fibers and converts them into contaminated fibrillar material; an apparatus for separating the used fiber material into used fiber material and waste fiber material, provided that the used material is substantially free of particulate matter larger than an initially predetermined size, and the waste material is substantially initially larger than the predetermined dimensions and shall contain all particulate material removed from the stock used; and at least one having a steam inlet, stock inlet, chemical feed inlet, mixing chamber, Venturi tube and outlet. The fiber material separation device consists of a hydraulically operated amplifier device, in which case the fiber material separation device includes a material inlet for receiving the waste material, a mixing chamber in which the waste material is mixed with steam entering through the steam inlet and then An amplifier device condenses the steam, transfers the energy of this steam to the waste material, and increases the pressure and temperature of the waste material from the material inlet to the outlet, and the contaminants in the waste material are transferred to the waste material in a Venturi tube where they are heated and An amplifier device that is exposed to cavitation forces and generates dispersed contaminants in the waste material, receives an emulsifying chemical through the chemical supply port and transfers this chemical to the waste material and causes dispersed contaminants in the waste material. A device for improving the quality of paper obtained from secondary fibers, characterized in that it is connected to an amplifier device which mixes the materials to such an extent that they emulsify. 2. It further includes a device for conveying the heated waste material with dispersed and emulsified contaminants from the amplifier outlet to a pulp disintegrator, where the conveying device subsequently injects hot water into the pulp disintegrator. 2. The apparatus of claim 1 for feeding a machine. 3. It further includes a device for removing contaminants heavier than water from the contaminated fiber material, the device being connected to a pulp disintegrator for receiving the contaminated fiber material and converting the fiber material into fibers. 2. The device of claim 1, wherein the device is connected to a fiber material separation device for feeding the material separation device. 4. In an apparatus for improving the quality of paper obtained from secondary fibers, a pulp disintegrator that receives hot water and secondary fibers and converts them into contaminated fiber substance; an apparatus for separating waste fibrous material, provided that the used material does not contain particulate material that is substantially larger than the initially predetermined size, and the waste material is substantially free of particulate material larger than the originally predetermined size; shall include all particulate material that is large and removed from the used material; a sizing particle removal device for removing particulate material larger than a second predetermined size from the waste fiber material;
However, this sizing particle removal device is connected to a material separation device for receiving waste material, and separates the waste material into contaminated used material and waste material, and the contaminated used material is divided into fiber material. and a second predetermined size, and the waste material consists of fibrous material and a second predetermined size, and particles larger than the predetermined size; and a steam inlet, a material inlet, respectively; comprising at least one hydraulically actuated amplifier device having a mixing chamber having a chemical inlet, an overflow outlet and a venturi tube, the amplifier device having an outlet connected to the venturi tube and having dimensions The determined particle removal device includes a source inlet for receiving contaminated source material, a steam inlet for allowing steam to flow into a mixing chamber, mixing the contaminated source material in the mixing chamber with steam entering through the steam inlet; and an amplifier device for subsequently condensing this vapor, transferring the energy of the vapor to the contaminated working material, and increasing the pressure and temperature of the contaminated working material from the material inlet to the exit, the contaminant in a Venturi tube. an amplifier device for exposing to cavitation forces and producing dispersed contaminants in the contaminated use material, receiving an emulsifying chemical through the chemical supply port and transferring the chemical to the contaminated use material;
Improving the quality of paper obtained from secondary fibers, characterized in that the contaminants used are connected to an amplifier device for mixing in a mixing chamber to such an extent that the dispersed contaminants in the raw material are emulsified. device to do. 5, further comprising a device for controlling the flow of contaminated raw materials;
In this case, the flow control device is connected to a sizing particle removal device for receiving contaminated work material and to an amplifier material inlet for supplying a controlled flow of contaminated work material to an amplifier device. 5. The device of claim 4, wherein the device is connected. 6. In an apparatus for improving the quality of paper obtained from secondary fibers, a pulp disintegrator that receives hot water and secondary fibers and converts them into contaminated fiber substance; equipment for removing the fibrillar material from the fibril material, provided that this equipment is connected to a pulp disintegrator for receiving the contaminated fibrillar material; equipment for separating the fibrillar material into used and waste fibrillar material; However, this material separation device is connected to a device for removing pollutants heavier than water for receiving contaminated fiber material from which pollutants heavier than water have been removed, and the fiber material used is substantially contains no particulate matter larger than the originally predetermined size, and the waste fiber material includes substantially all particulate material larger than the originally predetermined size removed from the used fiber material. a second sizing particle removal device for removing particulate matter larger than a predetermined size from waste fiber material;
However, this sizing particle removal device is connected to a material separator for receiving waste material, and the sizing particle removal device separates the waste material into contaminated used material and waste material, and separates the waste material into contaminated and used material. The material shall consist of fibrous material and particulate matter smaller than a second predetermined size, and the waste material shall consist of fibrous material and particulate material larger than a second predetermined size; A holding tank connected to a dimensioned particle removal device for receiving the raw material; a pump for pumping the contaminated raw material from the tank; steam inlets, mass inlets, chemical feed ports, mixing chambers, overflow at least one hydraulically actuated amplifier device having a discharge port, a Venturi tube, and an outlet, provided that the stock inlet is connected to a pump for receiving contaminated stock material in a mixing chamber through a steam inlet; Amplifier devices, such as those that mix with incoming steam and subsequently condense this steam and transfer the energy of this steam to the contaminated working material, increasing the contaminated working material from the material inlet to the outlet; an amplifier device for exposing the material to heat and cavitation forces in a venturi tube to generate dispersed contaminants in the contaminated source material; The contaminated raw material with dispersed and emulsified contaminants shall be connected to an amplifier device for mixing in a mixing chamber to such an extent that the dispersed contaminants in the raw material are emulsified; a device for selectively diverting the contaminated raw material of the sizing particle removal device from the amplifier device to a conveying device, in which case the selective diversion device A device for improving the quality of paper obtained from secondary fibers, characterized in that it is connected between a conveying device and a sizing particle removal device. 7. In an apparatus for improving the quality of paper obtained from secondary fibers, a pulp disintegrator that receives hot water and secondary fibers and converts them into contaminated fiber matrix; a sizing particle removal device that removes large particulate matter from contaminated fiber material;
However, this sizing particle removal device is connected to a pulp disintegrator for receiving contaminated fiber material, and the sizing particle removal device separates the contaminated fiber material into contaminated use material and waste material, and removes the contaminated fiber material. The material used shall consist of fibrous material and particulate matter smaller than the initially predetermined dimensions; the scrap material shall consist of fibrous material and particulate material larger than the initially predetermined dimensions; and steam. It consists of at least one hydraulically actuated amplifier device having an inlet, a mass inlet, a mixing chamber, a Venturi tube and an outlet, where the mass inlet is
sizing particle removal equipment for receiving contaminated work material;
The contaminated raw material is mixed in a mixing chamber with steam entering through the steam inlet and the steam is then condensed, the energy of this steam is transferred to the contaminated raw material, and the temperature of the contaminated raw material is increased from the raw material inlet to the outlet. an amplifier device for exposing the contaminant to cavitation forces in a Venturi tube to produce a dispersed and emulsified contaminant in the contaminated material; A device for improving the quality of paper obtained from secondary fibers. 3. In addition, a device for removing contaminants heavier than water from the raw material, provided that the device for removing contaminants heavier than water is a pulp disintegrator for receiving contaminated fiber raw material, a device for removing contaminants heavier than water, shall be connected to a device for removing contaminants heavier than water for removing the substance from the fibril material and providing contaminated fibril material having contaminants heavier than the water removed therefrom; and a device for separating the fibrous material into contaminated used fibrous material and contaminated waste fibrous material, in which case the fibrous material separator separates the contaminated fibrous material with removed contaminants that are heavier than water; connected to a device for removing contaminants heavier than water for receiving, and connected to a sizing particle removal device for feeding the contaminated waste fiber material to the fiber material separation device, and used the fibrous material is substantially free of particulate matter larger than the initially predetermined size;
8. The apparatus of claim 7, wherein the waste fibrous material includes substantially all particulate material larger than the originally predetermined size removed from the used fibrous material. 9. It further comprises a device for conveying the heated contaminated work stock with dispersed and emulsified contaminants from the amplifier outlet to a pulp disintegrator, the conveying device subsequently discharging the hot water into the pulp disintegrator. 8. The apparatus according to claim 7, which is fed to a disintegrator. 10, further comprising a device for selectively diverting the contaminated work material of the sizing particle removal device from the amplifier device to the conveying device, where the selective diversion device is connected to the conveying device and the sizing particle removal device; 8. The device of claim 7, wherein the device is connected between: 11. In an apparatus for producing fiber material from recycled paper products, a pulp disintegrator receives the recycled paper product and converts the recycled paper product into a slurry containing fiber material and contaminants; Apparatus for separating used fibrous material suitable for use in manufacturing and waste fibrous material containing contaminants; separating and receiving waste fibrous material containing pollutants and dispersing the fibrous material and reduced size; a processing device connected to a device for converting the waste fibrous material into a mixture with a contaminant, the processing device comprising: (i) a housing having an inlet for receiving the waste fibrous material and the contaminant; The apparatus shall be configured such that the waste fibrous material moves through the housing in the form of a vertical column, (ii) a Venturi tube provided in the housing and having an inlet and an outlet; and (iii) A vertical column of waste material is engaged within the housing to facilitate forcing the waste material into the inlet of the Venturi tube, reducing contaminants in size and fibrous material and reducing the reduced size. Apparatus for producing fibrous material from recycled paper products, characterized in that it includes a device for supplying steam into the interior of the housing to produce a mixture with dispersed contaminants at the outlet of the Venturi tube. 12. The apparatus of claim 11, further comprising a device for feeding the mixture exiting the venturi outlet to a pulp disintegrator. 13. The apparatus of claim 11, further comprising a chemical supply port within the housing for supplying chemicals into the interior of the housing for mixing with the vapor and waste material. 14. The device of claim 13, wherein the chemical is an emulsifier. 15. The processing device is a hydraulically operated amplifier;
12. The device according to claim 11. 16. A method for improving the quality of paper obtained from secondary fibers, comprising: combining hot water and the secondary fibers in a pulp disintegrator and converting the combination into a contaminated fiber material in the pulp disintegrator; first separating the fibrous material into a used material from which particulate matter larger than a predetermined size is removed and a waste material comprising substantially all material removed from the used material; from the waste material; secondly removing particulate matter larger than the predetermined size to form a contaminated source material that includes fibrous material and secondly particulate material smaller than the predetermined size; a predetermined amount of contaminated source material; mixing the steam with the contaminated raw material in a mixing chamber to raise the temperature of the contaminated raw material; mixing the contaminated raw material with a chemical that facilitates the emulsification of the dispersed contaminants in the raw material; The mixture of contaminant, vapor and chemicals is flowed through the venturi tube and cavitation forces are applied to the contaminants in the contaminant, dispersing the contaminants and causing them to be dispersed and emulsified therein. producing a contaminated feedstock having contaminated feedstock and increasing the pressure of the contaminated feedstock from the pressure of the contaminated feedstock in a mixing chamber; the heated contaminant being dispersed and emulsified therein; A method for improving the quality of paper obtained from secondary fibers, characterized in that the secondary fibers are returned to the pulp disintegrator together with any contaminants. 17. Remove all bulky contaminants that are substantially heavier than water from the contaminated fiber material, and place a predetermined flow of the contaminated material into a tank containing the contaminated material and remove the contaminated material from the contaminated material. 17. The method of claim 16, wherein the stock material is provided by pumping it from the tank to the mixing chamber. 18. A method for improving the quality of paper obtained from secondary fibers, in which hot water and secondary fibers are combined in a pulp disintegrator and the combination is converted therein into contaminated fibrillar material; substantially all bulky contaminants heavier than water are removed from the stock; this stock is first removed from the work stock and substantially from the work stock from which particulate matter larger than a predetermined size is removed; Separate into a waste material containing all the removed material; from this waste material, secondly remove particulate matter larger than a predetermined size, and separate the fiber use material and the second material.
including particulate matter smaller than a predetermined size to form the contaminated use material; providing a predetermined flow of the contaminated use material; mixing the steam with the contaminated use material in a mixing chamber; increasing the temperature of the source material; mixing the contaminated source material with a chemical that promotes emulsification of the dispersed contaminant in the source material; flowing the mixture of contaminated source material, steam, and chemicals through a Venturi tube; Cavitation forces are applied to the contaminants in the contaminated feedstock, dispersing the contaminants, producing a contaminated feedstock with the contaminants dispersed and emulsified therein, and reducing the pressure of the contaminated feedstock to the mixing chamber. quality of paper obtained from secondary fibers, characterized in that the heated contaminants are returned to the pulp disintegrator together with the contaminants dispersed and emulsified therein; How to improve. 19. A method for improving the quality of paper obtained from secondary fibers, comprising: combining hot water and secondary fibers in a pulp disintegrator and converting the combination into contaminated fiber material in the pulp disintegrator; A defined flow is provided in the form of a vertical column of contaminated fibrous material; steam is mixed with the vertical column of contaminated fibrous material in a mixing chamber to increase the temperature of the contaminated fibrous material; The vertical column is mixed with a chemical that promotes the emulsification of the dispersed contaminant in the contaminated fiber matrix; the mixture, still in the form of a vertical column of contaminated fiber matrix, vapor, and emulsifying chemical, flows through the Venturi tube. , applies cavitation forces to the contaminants in the contaminated fiber matrix, dispersing the contaminants, producing a contaminated substrate with the contaminants dispersed and emulsified therein, and increasing the pressure of the contaminated substrate. A method for improving the quality of paper obtained from secondary fibers, characterized in that it increases from the pressure of contaminated fiber material in a mixing chamber. 20. The method of claim 19, wherein the heated contaminated feed stock is returned to the pulp disintegrator along with the contaminants dispersed and emulsified therein. 21. When producing recycled paper stock by using a pulp disintegrator, secondary fibers, contaminants smaller than predetermined dimensions and contaminants with a specific gravity, white water substantially producing paper stock In a method for improving the quality of paper obtained from contaminated fiber stock consisting of contaminants having a specific gravity, in the case of a predetermined flow of stock flow in the form of a vertical column of contaminated fiber material, steam is added to the contaminated fibers. The mixture, still in the form of a vertical column of contaminated fiber material and vapor, is passed through the Venturi tube and the cavitation forces are transferred to the contaminated fibers. In addition to the contaminants in the raw material, the contaminants are dispersed and emulsified, producing a contaminated raw material with the contaminants dispersed and emulsified therein, and the pressure of the contaminated raw material is increased in the mixing chamber. A method for improving the quality of paper obtained from contaminated fibrous material, characterized in that the pressure of the contaminated fibrous material is increased from the pressure of the contaminated fibrous material. 22. The method of claim 21, wherein the heated contaminated feed stock is returned to the pulp disintegrator along with the contaminants dispersed and emulsified therein, and the hot water is supplied to the pulp disintegrator.