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Shaft sealing structure of horizontal spiral screen centrifuge

A horizontal screw and centrifuge technology, applied to centrifuges, centrifuges with rotating drums, etc., can solve problems such as reduced equipment life, stuck, excessive equipment load, etc., to reduce the possibility of entering the bearing position , increase the service life, and ingeniously conceived effects

Pending Publication Date: 2018-12-21
ZHANGJIAGANG LANNIAO MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a shaft sealing structure of a horizontal spiral screen centrifuge, which effectively solves the problem of strong volatilization, strong corrosion and easy crystallization such as ammonium chloride. When using materials, the main shaft is easily corroded because it is exposed outside, and the gap between the main shaft and the bearing gland is filled with crystals, resulting in excessive load on the equipment or even jamming, or corrosive gas entering the bearing cavity, causing bearing damage and shortening the life of the equipment. question

Method used

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  • Shaft sealing structure of horizontal spiral screen centrifuge
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  • Shaft sealing structure of horizontal spiral screen centrifuge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one, by figure 1 Provided, the present invention includes a differential screw shaft 1, the top of the differential screw shaft 1 is socketed and fixed with a drum sleeve 6, and the drum sleeve 6 is fixed on the screw on the top of the differential screw shaft 1 by screwing and The cap 3 is fixed, the first sealing ring 5 is socketed and fixed at the joint between the drum sleeve 6 and the screw cap 3, the drum 8 is sleeved and fixed on the outer side of the drum sleeve 6, and the inner side of the drum 8 is fixed with a transmission ring by bolts. One end of the feeding screw 7, the feeding pipe 4 is embedded in the center of one side of the feeding screw 7, and the oil lip sealing mechanism 15 is sleeved and fixed on the differential screw shaft 1, and one side of the oil lip sealing mechanism 15 is sleeved The differential drum shaft 16 is fixed, the outer side of the differential drum shaft 16 is socketed and fixed with the first bearing 14, the outer sid...

Embodiment 2

[0017] Embodiment two, on the basis of embodiment one, by figure 1 with figure 2 Given, the oil lip seal mechanism 15 includes a skeleton 17, an elastic support member 18, a positioning block 19, a corrugated oil lip seal 20, a second bearing 21, a slider 22, a slide rail 23 and a third sealing ring 24, the skeleton 17 The inner wall is socketed and fixed with a second bearing 21, and one side of the second bearing 21 is socketed and fixed with a third seal ring 24, and the center of the second bearing 21 and the third seal ring 24 is clamped and fixed with a differential screw shaft 1. The inner wall of the skeleton 17 is symmetrically embedded with a slide rail 23, and a slider 22 is slidably connected to the slide rail 23. The slider 22 is embedded and installed on one side of the positioning block 19, and the top of the positioning block 19 is connected to the elastic support 18 The inner wall of the skeleton 17 is connected, and the bottom of the positioning block 19 is...

Embodiment 3

[0018] Embodiment three, on the basis of embodiment two, by figure 2 with image 3 Given, the elastic support 18 comprises a sleeve 25, a first support spring 26, a stop block 27, a second support spring 28 and a telescopic rod 29, the sleeve 25 is fixed on the top inner wall of the framework 17 by bolts, and the sleeve 25 The interior is slidingly connected to the limiting block 27, and the top center of the limiting block 27 is welded with a telescopic rod 29, and the top of the telescopic rod 29 passes through the sleeve 25 and is fixed on the top of the positioning block 19, and the bottom of the limiting block 27 passes through the first A support spring 26 is connected to the bottom inner wall of the sleeve 25, and the telescopic rod 29 is sleeved and fixed with a second support spring 28, and the second support spring 28 is installed between the top of the limit block 27 and the top inner wall of the sleeve 25 , under the elastic action of the first support spring 26 ...

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Abstract

A shaft sealing structure of a horizontal spiral screen centrifuge solves the problem that the spindle is easily corroded due to being exposed, and gap of the main shaft and a bearing cover is prone to be filled with crystalline when processing materials such as ammonium chloride which are volatile, corrosive and easy to crystallize. The gap is filled by the crystal, causing the equipment to be overloaded or even stuck, or the corrosive gas entering the bearing cavity causes the bearing to be damaged, and the life of the equipment is reduced. The shaft sealing structure of the horizontal spiral screen centrifuge comprises a differential screw shaft, and the top sleeve of the differential screw shaft is fixedly provided with a rotary drum sleeve, and the rotary drum sleeve is fixedly provided with a screw cap on the top of the differential screw shaft through a rotary joint. The invention has a novel structure, ingenious design and convenient use, and the sealing structure completely protects the main shaft, the main shaft is not corroded by corrosive gas, and the possibility of gas liquid entering the bearing position is also reduced, thereby greatly increasing the service life ofthe whole machine, especially for the production process of volatile corrosive chemical products.

Description

technical field [0001] The invention relates to the technical field of sealing structures, in particular to a shaft sealing structure of a horizontal spiral screen centrifuge. Background technique [0002] The spiral discharge filter centrifuge is an automatic and continuous filter centrifuge developed in China in the past 20 years. The general form of the drum is similar to the centrifugal discharge centrifuge, which is a conical drum. The half-cone angle of the drum of this type of centrifuge has nothing to do with the separated materials, generally 10 ゜, 20 ゜ or 0 ゜, 0 ゜ It is a cylindrical drum. Inside the drum of the screw discharge filter centrifuge, there is a coaxial installation, a feeding screw that rotates in the same direction but has a different speed from the drum, and the filter cake is continuously conveyed from the drum through the feeding screw, while It does not rely on the centrifugal force component of the filter cake itself to move from the small end o...

Claims

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Application Information

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IPC IPC(8): B04B1/20B04B7/00
CPCB04B1/20B04B7/00
Inventor 黄韧浩
Owner ZHANGJIAGANG LANNIAO MACHINERY CO LTD