KR200218950Y1 - Sludge Moisture Removal Device Using Vacuum - Google Patents

Abstract

(1) The technical field to which the invention belongs

The present invention is a device that almost completely removes the moisture contained in the sludge with high moisture content by using the vacuum action

(2) Purpose of devising

Due to the sludge with high water content, the cost of treatment (transportation and landfill) or the secondary pollution, that is, the leachate from landfill, are all sludge with high water content. Therefore, in order to solve this problem, transportation cost is minimized by minimizing the water content of sludge. It is aimed at reducing and preventing leachate from landfill.

(3) constitution

In the case of wastewater sludge, the water content averages 75% to 85%, but to lower it to 3% or less, the water contained in the sludge should be removed. Most of the existing methods remove moisture by the compression (pressing) action. Since it is about 75%, a method of improving this is to inject sludge into a sealed container firstly, to form a vacuum state in the container secondly, and to rotate the screw with a heater installed in the container thirdly to stir the sludge. Moisture is vaporized and exhausted by vacuum pump, and the sludge is dried and is drawn out by automatic drawing timer when it changes to minimum particle.

(4) effect of design

It is possible to rapidly dry all sludges with high water content, so the range of application is wide such as water purification plant, wastewater treatment plant sludge and industrial wastewater sludge.

Description

Sludge Moisture Removal Device Using Vacuum {.}

Sludge is generated from relatively clean water sources and waste water is generated in large quantities. According to the conventional method currently being processed, it is mostly compressed by pressing (presser) to remove water contained in sludge. Although it is more than 75%, it is a big problem of the conventional method that the secondary pollution and the separate leachate treatment costs such as the treatment cost, that is, the transportation cost and the landfill cost are excessively consumed and the leachate is generated in the landfill, Since the water content can be lowered to 3% by using heat, the amount of sludge can be reduced to 1/4, so that transportation and landfill costs are proportionally saved, and there is no occurrence of leachate in the landfill, so it is excellent in economic efficiency.

The present invention uses the principle of exhausting air molecules in a sludge container through a pump, that is, reducing gas density in the container to minimize gas density, thereby lowering the boiling point of the material and allowing the water to evaporate early to exhaust the sludge. In order to minimize the moisture content (3% or less) by rapidly removing moisture contained in the container, the container into which the sludge is introduced is formed in a vacuum and the heat rises at a high speed (water is boiling at 47 ° C). Moisture contained in the water vaporizes and escapes out through the tube of the vacuum pump, and if the sludge is stirred by rotating the screw with the built-in heater, the sludge is dried at high speed and the amount of sludge is greatly reduced, resulting in economical efficiency (carrying cost and landfill cost) And free from secondary pollution (leachate)

(1) Sludge Drying Container (2) Sludge Inlet (3) Reduced Motor

(4) Screw rotating shaft (5) Sludge stirring screw (6) Sludge drawing outlet

(7) Heating heater (8) Vacuum pump (9) Vacuum suction pipe

(10) Sludge Automatic Drawing Timer

In order to realize this, a vacuum suction tube 9 is installed inside the vessel 1 and a vacuum pump 8 is installed outside, and a screw 5 for stirring the sludge is installed, and the reduction motor 3 is rotated thereon to rotate the screw. And indirect heat device on the outer wall of the container to transfer the indirect heat to the inside of the container (1). Apparatus consisting of a draw opening (6) for discharging the sludge out, an automatic drawing timer (10) for automatically drawing the dried sludge

It can be an opportunity to draw a stroke in the treatment of all sludges generated from all kinds of water, and it is excellent for removing moisture contained in various objects, and it can be beneficial to export as well as national demand for marketability.

Claims (1)

In order to install the sludge agitating screw (5) in the sealed container (1) and to increase the efficiency of indirect heat, a suction tube (9) of the vacuum pump (8) for evacuating vaporized gas is installed in the screw (7). Apparatus for placing an automatic drawing timer device (10) to automatically draw the dried sludge