KR960004537B1 - Device for macerating and dust removing for paper-making - Google Patents

Abstract

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Description

Paper Separation Dismantling & Dust Removal

1 is a longitudinal cross-sectional view showing an embodiment of the papermaking dismantling and vibration suppression apparatus of the present invention.

2 is a plan view cut along the line A-A in the example of FIG.

3 is a system explanatory diagram of a conventional example.

* Explanation of symbols for main parts of the drawings

1: Raw material inlet 2: Strainer

3: airtight casing 4: first dust removal treatment chamber

5: raw material recovery room 6: impeller

7: foreign body discharge path 8: 1st dust removal machine

9: foreign body discharge furnace 10: Milpe casing

11 hydrofoil rotor

12: screen basket

13: Jeongseon room 14: Secondary vibration control room

15: select raw material outlet 16: reject outlet

17: Upper cover 18: Secondary vibration damper

19: communication flow path 20: dilution water piping

28: circulating flow path 29: detector

30: regulating valve

The present invention is not separated and separated from the support material containing unreleased piece, foreign matter (metal piece, stone, plastic piece, styrol piece, vinyl piece, etc.) in recycled pulp production processing, waste paper processing or paper processing such as newspapers and magazines. The present invention relates to a paper separating dismantling and vibration suppression apparatus for separating and disassembling pieces, separating useful fibers and foreign materials, and then disposing the foreign materials off-system.

In general, in papermaking equipment such as dust pulp production processing, waste paper treatment, and waste paper treatment, the undisassembled and disassembled pieces in the fiber suspension serving as raw materials are separated and separated, and foreign matter such as stones, sand, metal pieces, resin pieces, and other dusts. For the purpose of exclusion, a screen device is formed by dividing the inside of a closed casing into screen plates with a plurality of round holes or slits, and a high speed rotating impeller is disposed in order to separate and remove the screen dregs. It is known to use a separate disassembler.

That is, in the conventional processing system, as shown in FIG. 3, each machine having a single function such as a round hole screen (a), a slit screen (b), a high speed separation disassembly (c), and the like has a pump (d) and a chest ( With e) it was common to use arrays.

However, in this conventional treatment system, the treatment system becomes complicated and the equipment cost is high, and an extra pump, chest, etc. are needed, and the waste of power also increases.

In order to alleviate such drawbacks, the use of a multi-function machine which performs three operations of a hole screen, a slit screen, and a high speed separation disassembly by a single machine has been performed.

However, when the screen basket is clogged or washed, the multifunction machine cannot work without removing the impeller and strainer, which is inconvenient and poor in workability. There is a problem that the capacity balance of the device can not be changed because it is fixed and there is no design freedom.

In addition, the lack of separation and disassembly of the non-separated pieces may include a large amount of unseparated pieces in the reject from the slit screen, and additional separation and dismantling equipment may be required for the reject process, resulting in high equipment costs. .

The present invention is intended to reliably exclude the various disadvantages of the conventional, it is possible to increase the mental treatment ability to separate the useful fibers and foreign matter, and also easy to clean and replace the screen basket, easy security and freedom of design The purpose of the present invention is to provide a device that can easily change the capacity balance between primary and secondary dust removal according to the amount and nature of the undisassembled pieces in the raw material and greatly increase the recovery of useful fibers. .

According to the present invention, a strainer comprising a screen for separating the raw material introduced from the paper stock inlet into useful fiber powder and foreign matter powder is installed in a closed casing, and the room is partitioned into a first dust removal treatment chamber and a raw material recovery chamber. Impellers installed in a vibration damper close to the strainer in a vibration material, a primary vibration damper having a discharge path for separated foreign materials, and a screen basket in which a hydrofoil rotor is installed in a casing separate from the primary vibration damper. To form a compartment with a selection chamber and a second vibration damping treatment chamber, to install a selection raw material outlet in the selection chamber, and to arrange a secondary vibration damper having a reject outlet in the second vibration damping treatment chamber in parallel. Separation and disassembly for papermaking, characterized in that the recovery chamber is connected to the second vibration suppression chamber of the secondary dust removal machine through a contact flow passage as a removable material. It is a vibration damper.

According to the paper separating and dismantling and vibration suppression apparatus of the present invention configured as described above, the raw material supplied in the closed casing of the primary vibration damper is exchanged in the primary vibration suppression chamber by an impeller rotating close to the strainer and passed through the useful fiber from the strainer. It flows into the raw material recovery chamber, and the foreign matter is separated without passing through the strainer, and is removed from the discharge path and treated outside. On the other hand, the raw material that has passed through the strainer is sent from the raw material recovery room to the secondary dust removal chamber through the contact flow path, and is separated into the raw material and reject by the screen basket. The reject is discharged from the reject outlet.

In a preferred embodiment of the present invention, a part of the reject discharged from the reject outlet is returned to the raw material inlet through the circulation passage and reprocessed. In addition, when the concentration of the raw material sent from the raw material recovery chamber of the primary vibration damper to the secondary dust removal treatment chamber is high, dilution water is automatically introduced from the dilution water pipe installed in the contact flow passage to stabilize the operation of the secondary vibration damper.

In addition, when the screen basket is cleaned and replaced, the upper cover of the airtight casing of the secondary vibration suppression chamber can be removed and taken out of the system to simplify the operation.

EXAMPLE

Embodiments of the papermaking separation disassembly and vibration suppression apparatus according to the present invention will be described as examples of FIGS. 1 and 2. A strainer (2) consisting of a screen for separating the raw material introduced from the papermaking raw material inlet (1) into useful fiber powder and foreign matter powder is installed at the bottom of the airtight casing (3), and the interior is subjected to the primary dust removal processing chamber (4) and the raw material. A partition is formed in the recovery chamber 5. The primary vibration damper 8 is arranged in the primary vibration suppression chamber 4 by arranging the impeller 6 provided in the rotational material in proximity to the strainer 2 and the discharge path 7 of the separated foreign matter. The impeller 6 is installed at the upper end of the impeller rotating shaft 21, and the driving pulley 23 is fixed to the lower end of the impeller rotating shaft 21, and is driven to rotate by a motor 25 connected to the belt 26. It is supposed to be. Moreover, the said primary damper 8 is equipped with the foreign material discharge path 9 in a center upper part, and can take out a lightweight foreign material out of a system.

A cylindrical screen basket 12 having a hydrofoil rotor 11 installed in a casing 10 separate from the primary vibration damper 8 is partitioned into a selection chamber 13 and a secondary vibration suppression chamber 14. do. The selection source raw material outlet 15 is provided in this selection chamber 13, and the reject discharge port 16 is provided in the secondary vibration suppression processing chamber 14, and the secondary vibration damper 18 is comprised. The hydrofoil rotor 11 is installed at the upper end of the rotor rotating shaft 22 and is driven to rotate by the motor 25 through the driving pulley 24 and the belt 27 fixed to the lower end of the rotor rotating shaft 22. do. The casing 10 of the secondary vibration damper 18 is hermetically sealed, and the upper cover 17 of the detachable material is provided above the screen basket 12 of the casing 10 to clean the screen basket 12. In addition, the exchange is easy.

These primary vibration dampers 8 and the secondary vibration dampers 18 are arranged in parallel, and the raw material recovery chamber 5 of the primary vibration dampers 8 is connected to each other of the secondary vibration dampers 18 through a communication passage 19. It is connected to the vehicle vibration isolator 14 by detachable materials. A circulating flow path for connecting the dilution water pipe 20 to the communication flow path 19, and for circulating the rejects to the raw material inlet 1 of the primary vibration damper 8 in the pipe leading to the reject discharge port 16. Equipped with 28.

In addition, the primary vibration damper 8 and the secondary vibration damper 18 are parallel to each other with a head difference, and an adjustment valve 30 is provided in the dilution water pipe 20 connected to the communication passage 19 between the two vibration suppressors. have. As a detection means for detecting the concentration of raw materials in the secondary vibration suppression processing chamber 14, for example, a detector 29 for detecting a load applied to the rotor rotation shaft 22 is used, and the detector 29 By adjusting the opening degree, the amount of dilution water is adjusted to be supplied to the contact passage 19 so that the primary damper 8 and the secondary damper 18 can be stably operated.

In addition, the primary vibration damper 8 may be disposed in the primary vibration suppression chamber 4 for a high speed rotary impeller (not shown) for separation and disassembly.

In addition, a part of the reject coming out of the reject outlet 16 of the secondary vibration damper 18 opens the control valve installed in the circulation passage 28 and then passes the raw material inlet 1 connected to the raw material inlet 1 of the primary vibration damper 8. It is valid to revert back to reprocessing. In this case, the pump action generated by the rotation of the hydrofoil rotor 11 in the secondary vibration suppression chamber 14 increases the raw material pressure, so that a part or all of the rejects can be circulated to the primary vibration suppressor 8. It can also be cycled using another device that has a function. In this way, the unseparated dismantled pieces in the reject are separated and separated into the impeller 6 of the primary vibration suppressor 8, so that the useful fibers can be recovered.

In addition, the strainer 2 mounted in the hermetic casing 3 uses a round hole strainer, and the screen basket 12 may be configured as a slit screen.

Next, the operation and operation of the papermaking separation dismantling and vibration suppression apparatus of the present embodiment will be described.

The raw material supplied from the raw material inlet 1 of the primary vibration damper 8 into the closed casing 3 is exchanged with an impeller 6 which rotates in proximity to the strainer 2 in the primary dust removal processing chamber 4 to be pretreated. Then, the useful fiber is passed from the strainer 2 to the raw material recovery chamber 5, and the foreign matter is separated without passing through the strainer 2, and is removed from the discharge paths 7 and 9 and treated out of the system. That is, on the side of the primary vibration suppression chamber 4 above the strainer 2, there is an impeller 6 which rotates as if the screen surface is polished, and the raw material introduced into the primary vibration suppression chamber 4 is impeller 6. The rotational direction and the vortex in the rotational direction are given, and the heavy foreign material in the raw material is slid to the outer circumferential wall of the primary dust removal processing chamber 4 by the centrifugal force generated therefrom. It falls to (not shown), and lightweight foreign material is taken out of the system from the discharge path 9 located above the center.

On the other hand, the raw material passing through the strainer (2) is separated into useful fibers and rejects by the screen basket (12) sent from the raw material recovery chamber (5) to the secondary dust removal processing chamber (14) through a communication passage (19). The useful fibers are drawn from the raw material outlet 15 through the selection chamber 13 and the reject is discharged from the reject outlet 16. If necessary, a part or all of the reject discharged from the reject outlet 16 is returned to the raw material inlet 1 of the primary vibration damper 8 through the circulation passage 28 and reprocessed.

When the concentration of the raw material sent from the raw material recovery chamber 5 of the primary vibration damper 8 to the secondary vibration suppression chamber 14 is high, the load applied to the rotor rotating shaft 22 is detected by the detector 29, and the detection is performed. Based on the signal, the opening degree of the adjustment valve 30 is adjusted to automatically introduce the required amount of dilution water from the dilution water pipe 20 into the contact flow path 19 so that the primary and second vibration suppressors 18 and 18 are removed. To stabilize the operation.

In addition, when the screen basket 12 is cleaned and replaced, the top cover 17 of the airtight casing 10 of the secondary vibration suppression processor 18 is removed and the screen basket 12 is shown as a virtual line in FIG. This can be done by taking it out of the system.

According to the present invention, a strainer comprising a screen for separating the raw material introduced from the paper stock inlet into useful fiber powder and foreign matter powder is installed in a closed casing, and the room is partitioned into a first dust removal treatment chamber and a raw material recovery chamber. Impellers installed in a vibration damper close to the strainer in a vibration material, a primary vibration damper having a discharge path for separated foreign materials, and a screen basket in which a hydrofoil rotor is installed in a casing separate from the primary vibration damper. A secondary vibration damper having a discharge outlet in the second vibration suppression chamber and parallelly arranged a secondary vibration suppressor having a discharge outlet in the second vibration suppression chamber. By connecting the raw material recovery room to the second dust removal processing chamber of the secondary vibration damper through the contact channel as a removable material, It is possible to easily change the capacity balance of the screen device by combining them properly by configuring them as a standard, and to increase the selection processing ability to separate useful fibers and foreign substances, and to clean and replace the screen basket. In addition to significantly increasing the number of fibers, it is possible to operate safely without causing screen clogging and the processing system can be simplified, so that a screening device capable of efficient screen work can be achieved.

Claims (7)

A strainer consisting of a screen for separating the raw material introduced from the papermaking raw material inlet into the effective fiber powder and foreign matter powder is installed in a closed casing, and the room is partitioned into a first dust removal treatment chamber and a raw material recovery chamber. An impeller installed in a rotating material close to the strainer, a primary vibration damper in which a discharge path of the separated foreign material is arranged, and a screen basket in which a hydrofoil rotor is installed in a casing separate from the primary vibration damper are installed. A second vibration damper is formed in a second vibration damping treatment chamber, a regular raw material outlet is provided in the selection chamber, and a secondary vibration damper having a reject discharge port is arranged in parallel in the second vibration damping treatment chamber. Papermaking powder, characterized in that the thread is connected to the second dust removal processing chamber of the secondary vibration damper through a contact flow path with a removable material. President and dismantling damping device. The papermaking separator according to claim 1, wherein the casing of the secondary vibration damper is constituted by a second hermetic casing, and an upper cover of a detachable material is provided above the screen basket of the second hermetic casing. Dismantling and vibration isolator. 3. The papermaker's separation and disassembly and vibration suppression apparatus according to claim 1 or 2, wherein the secondary vibration damper is parallel with a head difference and a dilution water pipe is connected to the contact flow path between both vibration suppressors. 3. The papermaker's separation and disassembly and vibration suppression apparatus according to claim 1 or 2, further comprising a circulation path for circulating the reject in the primary dust collector in a pipe connected to the reject outlet of the secondary vibration damper. 4. The papermaker's separation and disassembly and vibration suppression apparatus according to claim 3, further comprising a circulation path for circulating the reject in the primary dust collector in a pipe connected to the reject outlet of the secondary dust collector. 4. The control valve according to claim 3, wherein a detecting valve is provided in the dilution water pipe, and a detecting means for detecting a concentration of raw material in the second vibration suppression chamber of the secondary vibration suppressor is provided. Separation and dismantling and vibration suppression apparatus for papermaking to supply the dilution water to the required quantity by adjusting the opening degree of the supply channel. 7. The paper sheet separating disassembling and dust removing apparatus according to claim 6, wherein said detecting means is a detector for detecting a load applied to a rotating shaft of said hydrofoil rotor.