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Device for compacting pulp flocks

A pre-compacting and pressing technology, applied in packaging, presses, punching machines, etc., can solve problems such as pollution, limit cycle time, and large quantities, and achieve the effects of short cycle time, reduced maintenance, and increased output

Inactive Publication Date: 2016-12-07
ANDRITZ AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the known system are: limited cycle time due to the need to transfer hydraulic oil; need to use a large amount of hydraulic oil; and risk of contamination if any leaks
Furthermore, eccentric presses are known, for example from US 1,332,576, in which the rod has a passing point when being extended, at which point neither the applied force nor the height of the finished product can be set, since they are Design limitations of the press

Method used

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  • Device for compacting pulp flocks
  • Device for compacting pulp flocks
  • Device for compacting pulp flocks

Examples

Experimental program
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Embodiment Construction

[0012] figure 1 A slab press according to the invention is shown. A slab press is used to compact the fluff pulp into preferably prismatic bales. For this, the dried fluff pulp or mechanical pulp is fed to the distribution container 1 of the slab press after the drying plant. The pulp is divided between two buffer tanks 4 by means of a distribution baffle 2 and a distribution screw 3 . The feed cylinder 8 and the dosing screw 9 convey the pre-compressed pulp batt into the press trough where the fluff pulp is compressed to its final density in the press yoke 10 by means of the press head 6 . The feed drum 8 evenly supplies the fluff pulp to the batching screw conveyor 9 as a pre-compacting unit. Alternative pre-compaction units such as gate valves can also be employed. The compacted pulp mat is pushed laterally out of the press by a slide die 11 and then pushed vertically by a bale ejector 12 . The pressing force is applied via a toggle press 5 driven by a servo motor and ...

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Abstract

A device for compacting pulp flocks into slabs or preferably prism-shaped bale in a press with a device for feeding the pulp to the press with a least one buffer chute. The press unit is provided in the form of a mechanical toggle press and at least one pre-compaction unit. This can replace the commonly-used hydraulic system and greatly reduces the amount of maintenance required. In addition, it can shorten the cycle time and thus increase production.

Description

technical field [0001] The present invention relates to a device for compacting pulp batt into preferably prismatic bales in a press having means for feeding the pulp to the press with at least one surge tank. Background technique [0002] In the pulp and paper industry, the fluff is usually compacted into mats after a flash dryer for fluff or mechanical pulp using a so-called mat press where several mats are combined to form a mat. Bales are formed, which are then further compacted. A slab press of this type is known from AT502387. Here, the floc is divided into two streams after being pre-compacted and then pushed into the press trough from both sides. There, the necessary pressing force is applied by means of powerful hydraulic cylinders. The disadvantages of the known system are: the limited cycle time due to the need to transfer hydraulic oil; the need to use a large amount of hydraulic oil; and the risk of contamination if any leaks. Furthermore, eccentric presses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B9/30
CPCB30B9/306B30B1/14B30B9/301B30B9/3078B30B15/0029B30B1/10B65B1/24B65B27/12B65B63/02
Inventor 赫伯特·里默尔
Owner ANDRITZ AG
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