The "Three Mud" filter in the oil refinery is a best-selling national brand filter.

Oil sludge press (oil sludge dehydrator)
Oily sludge treatment

Oily sludge treatment

Oily sludge treatment

Oily sludge pressing Machine
(Oil sludge dehydrator)
Mainly used in refinery sludge dehydration, drilling sludge dehydration, pile driving sludge dehydration, oil field sludge dehydration and other oily sludge dehydration
Oily sewage treatment technology at home and abroad is the basic The same process is mainly divided into two stages of oil removal and filtration to treat sewage for reinjection. Since sewage is extracted from oil reservoirs, the main purpose of oilfield reinjection sewage treatment is to remove oil and suspended solids.
Generally speaking, it can be divided into two stages. The first stage is the oil removal stage. This stage uses the difference in density of oil and water and the demulsification and flocculation of the agent to separate oil and water. The second stage is the filtration stage. This stage is The adsorption and interception effect of the filter material is used to adsorb suspended solid oil and other impurities in the sewage to the surface of the filter material or prevent them from passing through the filter material layer. The oil removal stage should adopt corresponding treatment methods according to the density, freezing point and other properties of the crude oil in the oily sewage. Belt filter press can be used for sludge treatment, which is an efficient solid-liquid separation equipment.
Refinery sludge (or sludge) has always been the three most troublesome wastes in refineries. It was reported that a local company in Shaanxi dumped it into a ravine near the factory and was investigated and punished by the environmental protection department. The methods and processes generally used at present are: dehydration (generally using high-speed centrifuge or belt filter press, vacuum filter and other equipment after organic flocculant) to remove the sludge from the above water content to the following. At this time, the volume can be reduced by 10 times. Form into a mud cake. There are three ways to deal with the mud cake. One is to add diesel and incinerate it, which is very expensive. The other is to transport it out of the factory to a qualified unit for harmless treatment. It is also used for burning bricks, which generally requires a certain fee. The third is to mix it into coal and enter it into the boiler for processing. The fuel also enters the coke tower without leaving the factory and is low cost.
Equipment Features
The surface of the equipment rack is hot-dip galvanized and thermoplastic sprayed with fluorocarbon anti-corrosion treatment to resist acid, alkali and rust.
.The main body of the main machine is made of high-quality steel and anti-corrosion materials, the auxiliary dewatering roller blades
The thin plate parts below the fender water tank, waterproof cover, nozzle and screws are acid and alkali resistant and anti-rust
. Bearings The seat is made of high-quality cast iron fully sealed bearings, which are double-row roller Dalian metallurgical bearings and can be used for more than five years.
. The extrusion roller drive roller and guide roller are made of high-quality seamless pipes and wrapped with high-quality wear-resistant rubber
The main drive motor adopts domestic famous brands.
The filter belt is made of high-quality, high-strength polyester and can be used for more than one year.
Working principle

_ The sludge enters the dynamic (static) mixer through the transfer pump and mixes with the anion (cation) ion flocculant solution added at the same time and fully reacts The tiny solid particles (or suspended matter) in the residue (mud) slurry agglomerate into larger flocculent clumps. The bound water and surface water between the materials are separated into free water. When the materials are transported and spread to the extended gravity pre-loading On the filter screen in the dehydration zone (or on the belt thickener), free water penetrates the back of the filter screen under the action of gravity and exudes and separates to form stagnant sludge. It reaches the maximum pressure condition in the press dewatering zone and then flows with the movement of the mesh belt. It is clamped between the upper and lower mesh belts, passes through the filter belt with adjustable tension, the rotating rollers with gradually decreasing diameters, and the pressure rollers, which continuously increase the slow roller squeezing force and shear force, and pass through the wedge-shaped area with low pressure. The water in the slag (mud) slurry is continuously squeezed out through the medium pressure zone, the high pressure zone and the powerful pair of roller squeezing zones through step-by-step pressurization. Finally, a filter cake with a lower moisture content is formed and is discharged through a scraper plate. The upper and lower filter belts are separated and passed through high-pressure flushing water and roller brushes to remove trace particles in the pores on the filter surface and continue to the next step of the dehydration cycle.
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_ If you want to know more about sludge press, please pay attention to Luding Environmental Protection Equipment Co., Ltd. Contact number