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Sealing apparatus for end faces of rotary drum

A technology of end face sealing and drum, which is applied in engine sealing, dehydration/drying/thickened sludge treatment, engine components, etc. It can solve problems such as filter belt deviation, equipment damage, and low processing and assembly accuracy of the central drum. To achieve the effect of preventing the deviation of the filter belt, increasing the friction force and preventing side leakage

Active Publication Date: 2013-11-20
DALIAN HUANZI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At the same time, when the central drum rotates to squeeze the sludge, the uneven stress on the sludge and the low processing and assembly precision of the central drum will cause the filter belt to deviate, affect the effect of sludge drying treatment, and even cause equipment damage in severe cases

Method used

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  • Sealing apparatus for end faces of rotary drum
  • Sealing apparatus for end faces of rotary drum
  • Sealing apparatus for end faces of rotary drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] as attached Figure 1-4 As shown, the present invention is a drum end face sealing device, which is composed of a pull rod mechanism 1 , a sliding sleeve 2 , a pressure rod mechanism 3 , a sealing end plate 4 and a labyrinth seal 5 . Among them, the central drum 6, the supporting bearing seat 7, the pressure roller 8 and the filter belt 9 are the upstream and downstream process-related equipment.

[0021] The pull rod mechanism 1 is fixed on the support bearing seats 7 on both sides of the central drum 6 and drives the entire sealing device to move; the sliding sleeve 2 is installed on the central rotating shaft of the central drum 6; the pressure rod mechanism 3 and the seal The end plates 4 are installed on both sides of the central drum 6 and unfolded to form a ring-shaped sealing surface during operation; the labyrinth seal 5 is formed by processing and assembling both ends of the central drum 6 and pressure roller 8 .

[0022] The pull rod mechanism 1 includes a d...

Embodiment 2

[0028] The basic structure and method of use are the same as in Example 1 in this example.

[0029] Such as figure 2 As shown, the drive cylinder 11 is retracted, the Y-shaped tie rod 13 and the support bearing seat 7 move the bifurcated end of the Y-shaped tie rod 13 to the left through the principle of leverage, and the two guide wheels 14 push the sliding sleeve 2 to move axially to the left. The guide wheel 14 and the connecting rod 31 are connected by a hinge, and the connecting rod 31 transmits the action to the slide plate 42 through the spring 33 in the spring slide plug 32 and the spring sliding sleeve 34, so that the slide plate 42 radially protrudes, and there are 6 slide plates 42 , the sealing plate 41 on the slide plate 42 forms a complete seal on the end face of the central drum 6 .

[0030] Such as Figure 4 As shown, in the present invention, the central drum surface labyrinth 51 and the pressure roller surface labyrinth 52 on the edge of the central drum 6...

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Abstract

The invention relates to the field of environmental protection equipment, and specially relates to a sealing apparatus for end faces of a center rotary drum used for a pressed-film type sludge drier. According to the sealing apparatus for the end faces of the rotary drum, driving oil cylinders are fixedly disposed on supporting bearing pedestals at two sides of the center rotary drum; the protrude end of each driving oil cylinder is fixedly connected with a pull bar with a Y-shaped structure; each branching end of the Y-shaped pull bar is provided with a guide wheel disposed in a sliding sleeve; each sliding sleeve is fixedly connected with one end of a pressure bar mechanism, and the other end of the pressure bar mechanism is fixedly connected with a slide plate; the slide plate is fixedly connected with a sealing plate; and the slide plate can have radical slide along the center rotary drum through a guide groove disposed at the end face of the center rotary drum. Through the pull bar mechanism, the sealing plate is driven to seal the work face of the rotary drum, so that the edge-leakage problem during a sludge pressing process is effectively prevented. Through occlusions of a center rotary drum surface labyrinth and a pressure roller surface labyrinth to a filtering belt, the frictional forces of the rotary drum and the pressure roller to the filtering belt are increased, and the filtering belt sideslip phenomenon caused by skid is prevented.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a drum end face sealing device for drum press film type sludge drying equipment. Background technique [0002] Sludge is a kind of solid sediment produced in the process of water and sewage treatment. The main source is municipal sewage, industrial sewage, water dredging and other sewage treatment processes. It has a large output and is very harmful to the human body and the environment. . Sludge has high moisture content (up to 90% or more), high organic matter content, easy to rot and smell, and the particles are finer, the specific gravity is smaller, and it is in a colloidal liquid state. At present, the main disposal methods of sludge are landfill, incineration, composting and drying treatment. However, landfill and incineration of sludge are likely to cause secondary pollution, and composting does not treat heavy metals in sludge. Therefore, the treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12F16J15/16
Inventor 张赜李爱民邹欣洺
Owner DALIAN HUANZI TECH