Pectin dedicated volute sludge dehydrator and screw shaft thereof

A technology of sludge dewatering machine and screw shaft, which is applied in water/sludge/sewage treatment, sludge treatment, dehydration/drying/thickened sludge treatment, etc., which can solve the problem of reducing equipment processing capacity and increasing equipment one-time investment and other problems to achieve good dehydration effect, improved processing efficiency and long dehydration time

Inactive Publication Date: 2016-06-29
SHANGHAI TECHASE ENVIRONMENT PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this condition, using a general screw stacker to reduce the processing capacity of the equipment to achieve the processing effect will result in an increase in the one-time investment of the equipment.

Method used

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  • Pectin dedicated volute sludge dehydrator and screw shaft thereof
  • Pectin dedicated volute sludge dehydrator and screw shaft thereof
  • Pectin dedicated volute sludge dehydrator and screw shaft thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Such as figure 2 As shown, the screw shaft 13 of a pectin special-purpose screw-packed sludge dehydrator of the present invention adopts a screw shaft with variable diameter and pitch. ) gradually decreases along the direction of the mud box; the diameter of the screw shaft gradually increases along the direction of the mud box from the position of 1 / 3 of the shaft length. The length of the rear 2 / 3 section (ie dehydration section 3A) of the screw shaft increases by 10-15%.

[0023] Such as figure 1 As shown, the present invention is a pectin-specific stacked screw sludge dehydrator, which includes a filter body 14 composed of a fixed ring 4, a movable ring 5 and the above-mentioned screw shaft 13, and also includes a casing 9, a filtrate collection tank 10, Filtrate outlet 11, inlet mud box 8 and mud box 2; several fixed rings 4 (annular fixed laminations) are arranged in sequence in the inside of the casing 9, and the configuration between adjacent fixed rings 4 is...

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PUM

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Abstract

The invention discloses a pectin dedicated volute sludge dehydrator and a screw shaft thereof. A reducing variable pitch screw shaft is adopted, a pitch of a screw panel is gradually reduced along a sludge outlet tank; the diameter of the screw shaft is gradually increased along a sludge outlet tank direction from the 1 / 3 position of the shaft length; and the length of the back 2 / 3 section of the screw shaft, namely the dehydration section, is increased by 10-15%. Aiming at the features that the pectin is high in sludge organic content, soft in mud, light in proportion, and hard to dehydrate, the pectin dedicated volute screw shaft is innovated and designed; and through special design of the screw shaft, the pressure in a dehydration cavity is higher, the compression ratio of a mud inlet end to a mud outlet end can achieve 3.5: 1, the dehydration time is longer, and the dehydration effect is better. The pectin dedicated volute sludge dehydrator has the characteristics of being larger in cavity pressure, hard to stick the shaft, longer in sludge dehydration retention time and high in dehydration efficiency; and the sludge dehydration effect can be effectively improved while guaranteeing that the processing efficiency of unit time cannot be reduced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a pectin-specific screw stacking sludge dehydrator and a screw shaft thereof. Background technique [0002] With the continuous improvement of people's living standards, the demand for canned food is also increasing. Among all kinds of canned food, the production and trade volume of canned vegetables and canned fruits has become the mainstream. Due to the large amount of organic wastewater produced in the production of canned fruit, the wastewater contains organic matter such as sugar, organic acid, pectin, acid, and alkali. If it is directly discharged into natural water bodies without treatment, it will consume a large amount of dissolved oxygen, resulting in hypoxia in the water body. Humans and aquatic organisms die, so while the canned food factory is developing rapidly, the problem of wastewater treatment has increasingly attracted people's general attention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F103/32
CPCC02F11/121C02F2103/32
Inventor 孙刚范蒋益旭倪纯威刘道广
Owner SHANGHAI TECHASE ENVIRONMENT PROTECTION
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