Papermaking defibrator

A thermal mill and grinding head technology, used in mechanical equipment, engine components, engine sealing, etc., can solve problems such as easy damage and poor sealing effect of grinding shafts, and achieve the effects of simple installation, improved efficiency, and reduced steam leakage.

Inactive Publication Date: 2017-02-15
怀宁县天元纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a paper-making thermal grinding machine, which solves the problem of poor sealing effect and easy damage of the grinding shaft in the existing paper-making thermal grinding machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , figure 2 , a kind of papermaking heat mill, comprises motor 10, control part 11, grinding device 12, discharging device 13, preheating cooking device 14, steam pipe 15, feeder 16; The cooking device, the feeder is a screw feeder, and the preheating cooking device uses high-temperature and high-pressure steam to cook the material, and the cooked material enters the grinding device through the feeding pipe 9, and the motor supplies the grinding device with The power and control part detects the operation status of the paper-making heat refiner, and adjusts and controls it. The material is crushed, torn and cut off by the grinding device, and the ground wood pulp is discharged from the discharge device; if the seal is not ideal, it will affect the preheating and cooking equipment. The internal steam pressure and high temperature and high pressure steam leakage will affect the working state of the grinding shaft bearing and cause the vibration of the grindi...

Embodiment 2

[0034] see figure 1 , image 3, The sealing mechanism in this embodiment is an improvement on the basis of Embodiment 1. The technical content disclosed in Embodiment 1 will not be described repeatedly, and the content disclosed in Embodiment 1 also belongs to the content disclosed in this embodiment.

[0035] see image 3 , the threaded teeth are wound on the grinding shaft; inside the seal ring, a plurality of annular seal gears are arranged at intervals along its axial direction; the outer tooth edges of each annular seal gear They all correspond to the positions of the tooth bottoms of the thread teeth, and a rotation gap 62 is provided between the outer tooth edges and the tooth bottoms. When the steam passes through the gap, because the channel area becomes smaller, the flow velocity becomes faster and the pressure decreases under the effect of throttling. In the subsequent steam chamber, due to the expansion of the space, a strong eddy current is formed, the speed is...

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PUM

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Abstract

The invention relates to the technical field of papermaking equipment, and particularly relates to a papermaking defibrator. The papermaking defibrator comprises a motor, a control part, a grinding device, a discharge device, a preheating and cooking device, a steam pipe and a feeder, wherein the grinding device comprises a grinding head and a sealing mechanism; the grinding head comprises a shell, and a static abrasive disc and a movable abrasive disc which is correspondingly matched with the static abrasive disc are installed in the shell; the static abrasive disc is fixed to the shell by a feed pipe; the sealing mechanism comprises a steam seal ring which is installed on the shell and thread teeth which are installed on a grinding shaft, the grinding shaft penetrates through the steam seal ring, one end of the grinding shaft extends into the shell, and the end of the grinding shaft is connected with the movable abrasive disc; the steam seal ring sleeves the thread teeth and corresponds to the thread teeth. The invention aims to provide the papermaking defibrator, which solves the problems of poor sealing effect and easiness in damage to the grinding shaft of an existing papermaking defibrator.

Description

technical field [0001] The invention relates to the technical field of papermaking equipment, in particular to a papermaking heat refiner. Background technique [0002] Paper production is divided into two basic processes: pulping and papermaking. Pulping is to use mechanical methods, chemical methods or a combination of both to dissociate plant fiber raw materials into natural pulp or bleached pulp. Papermaking is the process of combining pulp fibers suspended in water into paper sheets that meet various requirements. [0003] Thermal mill is an important mechanical equipment in the field of papermaking industry. It can extract the fibers in the wood flakes to obtain the required products. It uses high-temperature and high-pressure steam to cook wood chips. At a certain temperature It is a device that grinds wood chips and other plant materials into fibers through the grinding disc of the thermal grinder under pressure. During the grinding process, the movable grinding di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/30F16J15/16
CPCD21D1/303F16J15/164
Inventor 江昊
Owner 怀宁县天元纸业有限公司
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