A tubular concentration device

A thickening device and tube-type technology, which is applied in the fields of sludge treatment industrial equipment manufacturing, brewing, and papermaking, can solve the problems of heavy maintenance workload, reduced work efficiency, and pressure difference, and achieve short replacement time and long life of filter bags The effect of prolonging and increasing the filtering speed

Active Publication Date: 2015-08-05
杭州安永环保科技有限公司
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  • Application Information

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Problems solved by technology

The disadvantage is: the structure is complex, especially there are many three-way pipes. In case any one of the three-way pipes is blocked or damaged, the maintenance workload is quite large. Using the filtered medium for backwashing will virtually reduce the overall working efficiency of the filter.
[0007] The common problems in the above-mentioned three patents are: first, the medium for backwashing is liquid. When a certain filter hole in the filter tube is washed away by the liquid, the medium flows out from the filter hole, and the pressure difference inside and outside the filter tube drops. The attached filter cake is difficult to fall off due to the lack of water pressure, and the recoil effect is not ideal
The second is to use the filtered medium for backwashing to reduce the overall work efficiency
The third is that when backwashing, the filter tube does not vibrate, the filter cake is not easy to fall, and the cake removal is not complete, which directly affects the next step of concentration and filtration.

Method used

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Examples

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example 1

[0036] Example 1: The new line of Guangdong Huiyun Titanium Industry Co., Ltd. has an annual output of 35,000 tons of titanium dioxide. It was originally equipped with seven 600-square-meter box-type filter presses to produce sludge with a solid content of about 45%, and then add water to make solid The mud with a content of about 25% enters the high-pressure sludge dryer. The project investment is about 12 million yuan, and the annual operating cost is about 6 million yuan. However, the investment of the device of the present invention is only 3.6 million yuan, and the annual operating cost is less than 1 million yuan. Bring huge economic benefits to the enterprise.

example 2

[0037] Example 2: Guangxi Pingguo Lily Chemical uses a common shell and tube filter to concentrate titanium dioxide wastewater. Since the wastewater contains a small amount of ferric hydroxide colloid, the filter cake formed on the surface of the filter tube with gypsum in the wastewater is very viscous. Relying on the filtrate to carry out negative pressure recoil can not be flushed at all, which seriously affects the filtration. In addition, there is no diversion layer outside the filter tube, only the filter cloth at the through hole of the filter tube can filter, and the area without openings accounts for as much as 65% of the total surface area of ​​the filter tube, so more than 60% of the filter cloth does not filter effect, this also greatly affects the filtering and concentrating effect, so it is necessary to adopt 6 sets of tubular filters with an investment of more than 4 million yuan and an annual operating cost of more than 1.2 million yuan, while using the device o...

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Abstract

The invention relates to a tubular concentration device in the manufacturing field of papermaking, brewing and sludge treatment industrial equipment. The tubular concentration device comprises a base and a cylinder, wherein a feed hole and a discharge hole are formed in the cylinder; filter pipes are arranged in the cylinder; the upper parts of the filter pipes are communicated with straight pipes; filtrate outlets, gas inlets and vibrators are arranged on the straight pipes; the outer surface of each filter pipe is coated with a screen which is further sleeved with a filter bag; the straight pipes are elastically connected with the upper end surface of the cylinder; or every 2-50 straight pipes are connected in parallel to form a group, each group is provided with one vibrator, and the filtrate outlets and the gas inlets of the straight pipes are gathered as one; when in use, each filter pipe is subjected to cake removal in turn while other filter pipes work normally; the feed hole is continuously opened, and the discharge hole is opened for discharging once at an interval of certain time; since the upper parts of the straight pipes are connected with the vibrators and provided with the gas inlets, vibration as well as blowing is performed in cake removal, and the drop speed of filter cakes is increased; the outer surface of each filter pipe is coated with the screen and the filter bag to form a porous filter layer with certain thickness, the concentration filtration is smooth and the service life of the filter bag is long.

Description

technical field [0001] The invention relates to the field of papermaking, brewing, and sludge treatment industrial equipment manufacturing, and specifically refers to a tube-and-tube concentration device for dehydrating and concentrating materials with high water content. Background technique [0002] Dehydration of materials with high water content in papermaking, brewing, sludge treatment and other related industries has always been a major problem in industrial production and waste residue and sludge treatment. The traditional solid-liquid separation mainly uses centrifugal dehydrator, belt type Filter presses, plate and frame filter presses, vacuum filter presses and other filtration equipment filter out solids from liquids to achieve the purpose of solid-liquid separation. Due to the limitations of equipment and processes, these equipment have low working efficiency and are easy to block. Cleaning up is very difficult. [0003] From the website of the State Intellectua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D29/50B01D29/72B01D29/66B01D35/12
Inventor 辛后安
Owner 杭州安永环保科技有限公司
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