CN103031768A

CN103031768A - Improved equipment and method for separating heavyweight part during waste paper conversion

Info

Publication number: CN103031768A
Application number: CN2011103053581A
Authority: CN
Inventors: 葛帅德
Original assignee: Andritz China Ltd
Current assignee: Andritz China Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2013-04-10
Anticipated expiration: 2031-09-29
Also published as: CN103031768B

Abstract

The invention discloses improved equipment and an improved method for separating a heavyweight part during waste paper conversion. The equipment is provided with a material dissolver (1) and a precipitator (16). The material dissolver (1) is connected with the precipitator (16) for separating the heavyweight part. The heavyweight part (10) in waste paper is deposited in a precipitation tower (15), and can be removed from the precipitation tower (15) by utilizing tongs (13). According to the equipment, the precipitator (16) is also provided with a heavyweight part valve (17) besides the tongs (13), and the heavyweight part valve (17) can also be used for removing the heavyweight part (10). The method is executed by the equipment. According to the equipment and the method, the heavyweight part can be separated in an improved way, and an operator is hardly required.

Description

Be used for carrying out equipment and the method that heavy partly separates in waste paper processing with improving

Technical field

Form theme of the present invention be used to leach/dissolve waste paper, have material leach device (

) and the equipment of settler.At this, the heavy part that is included in the waste paper deposits in precipitator tower, and then can utilize handgrip to be removed.Same what form theme of the present invention is the method for partly separating be used to leaching/dissolve waste paper and heavy, and described method relies on foundation equipment of the present invention to be carried out.

Background technology

In processing during waste paper, often use precipitator tower and carry out heavy and partly separate, in precipitator tower, the heavy that is included in the waste paper partly is deposited.This precipitator tower leaches device (pulper Pulper) by corresponding large outlet and material and is connected in lower area.The fibrous suspension that discharges from thick heavy part leaves precipitator tower by overflow part.The heavy that separates in precipitator tower part for example is the metal part, such as bolt, clip, nail, or stone, glass etc., even once in precipitator tower, found complete motor sub-assembly ( ).

Then, heavy partial periodicity formula ground is removed from precipitator tower by handgrip (for example many jaws formula handgrip), and this heavy partial response ground is processed.Although utilize handgrip without any problems very large heavy partly to be removed, need operator's periodic ground to handle handgrip.This has caused extra cost.

Same application is not with the heavy part separator of handgrip.At this, relate to be up closed, with the deposition vessel at the heavy part valve of bottom.Have the overflow part for fibrous suspension in the upper area of this deposition vessel, wherein, the overflow part of deposition vessel is in the below of liquid level in the pulper.Although this deposition vessel is worked satisfactoryly, larger heavy part may be blocked described heavy part valve.This obstruction and may cause whole pulper long downtime because the waste paper quality (especially at Asia) that becomes more and more worse occurs all the more continually.In addition, also may occur at the overflow part place blocking in this deposition vessel, in this case, pulper must be cleared, and opens the inspection opening of deposition vessel, and this also interrelates with the height cost.

Summary of the invention

Therefore, the present invention is based on following task, that is, provide following equipment, described equipment has realized that the heavy that improves partly separates, and needs the operator hardly.

Described task is resolved by the settler with precipitator tower, and this precipitator tower also has the heavy part valve except handgrip.In this equipment, come the separation of heavy part by the heavy part valve.Such heavy part separation scheme needs the operator hardly.Can easily remove large heavy part by handgrip, and the obstruction that also can remove by handgrip overflow part, the downtime of growing avoided thus.

The heavy part valve preferably has two valves, has valve pocket between two valves.Thus, can from the heavy part valve, discharge the heavy part, partly not separate and affect thus heavy.

At this, preferably discharge the heavy part by the valve timing ground (getaktet) of bottom.

Advantageously, flushing line is passed in the valve pocket.By this flushing line, can in the situation that the valve of bottom cuts out and the valve on top is opened, water be flowed to valve pocket.It is separated like this and be washed in the fibrous suspension to be attached to fiber remnants on the heavy part that deposits.

Also be contemplated that, above precipitator tower, be furnished with spray nozzle.Then, by this spray nozzle, the heavy part of utilizing handgrip to promote from precipitator tower can be discharged from fiber remnants.

What form equally theme of the present invention is a kind of correlation method be used to leaching waste paper, wherein, leach at material and to leach waste paper in the device, and partly be removed with heavy that material leaches in the settler (combined with the heavy part valve on the bottom side of precipitator tower with the precipitator tower of handgrip) that device is connected.According to the present invention, by the most heavy part of heavy part valve carrying-off.

Preferably, 20 to the 50 volume % that leach the fibrous suspension in the device by settler to being formed at material are guided, and thus, can guarantee that good heavy partly separates.

Advantageously, the heavy part valve periodically moves.

Description of drawings

Below, introduce by reference to the accompanying drawings the present invention.Wherein:

Fig. 1 illustrates the diagrammatic side view according to the conventional heavy part separation scheme of prior art;

Fig. 2 illustrates the schematic side elevation according to equipment of the present invention.

The specific embodiment

Identical Reference numeral represents respectively identical element in these two accompanying drawings.

The conventional equipment that partly separates for heavy shown in Figure 1.This equipment comprises that material leaches device l (pulper Pulper), and material leaches utensil to be had rotor 2, sieve 3 and very starch chamber 5.Be in operation, waste paper and water flowed to material leach device 1, leach and form fibrous suspension 4 at this waste paper.At this, material leaches process and is assisted support by rotor 2.The major part of the fiber that leaches arrives in the good slurry chamber 5 by the sieve 3 of rotor 2 belows.Then, will very starch 6 units that flow to other in order to continue to process.

The part of fibrous suspension 4 and the heavy part 10 that particularly is included in the waste paper are left pulper as screening reject 11, and arrive in the precipitator tower 15, and there, heavy part 10 is in the bottom of precipitator tower 15 deposition.Suspension 12 leaves precipitator tower 15 by overflow part 14, and inputs to the hazardous waste handlers 7 (removing gob machine (De-Trasher)) for further processing procedure.Heavy part 10 is removed from precipitator tower 15 with handgrip 13 by periodic ground.

In Fig. 2, exemplarily illustrate for the foundation embodiment that leaches the equipment that partly separates with heavy for material of the present invention.Here, settler 16 is equipped with heavy part valve 17 extraly.This heavy part separator 17 is arranged in the below of precipitator tower 15 and has two valves 8 and 9.Formed valve pocket 20 by these two

valves

8 and 9.

Normally in service, discharge most of heavy part 10 by heavy part valve 17.At this, the valve 9 of opening generally speaking the valve 8 on top and closing the bottom.So, continuously accumulation in valve pocket 20 of heavy part 10.By flushing line 18, above valve 9, water is imported in the valve pocket 20.By these water will for example be attached to fiber on the heavy part 10 from valve pocket 20 refunds to precipitator tower 15.

At regular intervals and at the latest when valve pocket 20 is full of by heavy part 10, stop to carry flushing water, shut off valve 8 and open valve 9, then, heavy part 10 is fallen the container from valve pocket 20.Afterwards, shut off valve 9 and again open flushing pipe 18 and valve 8 again.

Utilize handgrip 13 from settler 16, to remove large heavy part 10, this point can otherwise periodic ground carries out, or in the situation that heavy part valve 17 stops up, carry out.In addition, utilize handgrip 13 also can easily remove the obstruction of overflow part 14.

In the present embodiment, on precipitator tower 15, be furnished with spray nozzle 19.Can be sprayed with water by spray nozzle 19 by the heavy part 10 that from precipitator tower 15, promotes with handgrip 13.Thus, so the fiber on heavy part 10 is remaining is washed out and arrive again in the suspension circulation by spray.

Reference numeral

1 pulper (material leaches device)

2 rotors

3 sieves

4 fibrous suspensions

5 good slurry chambeies

6 very starch

7 hazardous waste handlers

8 valves

9 valves

10 heavys partly flow

11 screening rejects

12 suspension

13 handgrips (many jaws formula handgrip)

14 overflow part

15 precipitator towers

16 settlers

17 heavy part valves

18 flushing lines

19 spray nozzles

20 valve pockets.

Claims

1. be used for leaching the equipment of waste paper, described equipment has material and leaches device (1) and settler (16), described material leaches device (1) to have: rotor (2), sieve (3) and very starch chamber (5), described settler (16) leaches device (1) with described material and is connected, and in described settler (16), the heavy part (10) that is included in the waste paper deposits, wherein, described settler (16) has: precipitator tower (15), the overflow part (14) and the handgrip (13) that are used for fibrous suspension (12), utilize described handgrip (13) can from described settler (16), remove described heavy part (10), it is characterized in that, described settler (16) utilizes described heavy part valve (17) can remove equally described heavy part (10) except described handgrip (13) also has heavy part valve (17).

2. equipment according to claim 1 is characterized in that, described heavy part valve (17) has two valves (8,9), has valve pocket (20) between these two described valves (8,9).

3. equipment according to claim 2 is characterized in that, can periodically empty described valve pocket (20) by described valve (9).

4. equipment according to claim 2 is characterized in that, flushing line (18) passes in the described valve pocket (20).

5. according to claim 1 to one of 4 described equipment, it is characterized in that, be furnished with at least one spray nozzle (19) in the top of described precipitator tower (15).

6. be used for leaching the method for waste paper, wherein, leach in the device (1) at material and to leach waste paper, and wherein, to leach heavy part (10) in the settler (16) that device (1) is connected separated and removed from described precipitator tower (15) with handgrip (13) in precipitator tower (15) with described material, it is characterized in that heavy part (10) is led away by the heavy part valve (17) of described precipitator tower (15) below equally.

7. method according to claim 6 is characterized in that, 20 to the 50 volume % that leach the fibrous suspension (4) in the device (1) by described settler (16) to being formed at described material are guided.

8. according to claim 6 or 7 described methods, it is characterized in that described heavy part valve (17) periodically moves.