Author: gnadmin

1.India IMMK Chemtech and oil sludge treatment project introduction

1.1 India IMMK Chemtech IMMK Chemtech Private Limited  is a new chemical technology startup company providing innovative recycling technologies and Process Intensification based technology solutions. We are now developing a techno-commercial bid for a robotic – mechanised crude oil tank cleaning and sludge processing tender.

1.2 In this connection we are looking for a three-phase (sludge, water and oil) centrifuge separator. and we understand this equipment is within your product range. The sludge handling capacity shall be 60 M3/day. The compositions and properties of crude oil sludge vary and it generally contains cyclo-alkanes, poly-cyclic aromatics, asphaltenes and other refractory hydrocarbons with water and heavy metals.

1.3 Typically the sludge consists of Oil 40-45%, Water 3-5% and Solid residue 50-55%.   The residue/ solid waste produced for disposal shall contain less than 10.0 wt% as oil in solid waste and recovered oil should have less than 4.0 vol% Base Sediment and/bottom solids and/bottom sludge and water (BS&W). The treated water shall consist of Oil less than 100 ppm, the oily water treatment equipment could be offered optionally if it is within your product range.

2.GN 3 phase decanter centrifuges features and specical tips.

A.Screw Conveyor Material: Duplex Stainless Steel SS2205

B.Material Distribution Nozzle: : Tungsten Carbide insert

C.Screw Conveyor Wear Protection: Tungsten Carbide Tiles

D.Differential Speed: Adjustable according to conditions

E.Bearing: SKF or Japan NSK Brand

F.Bowl Material: Duplex Stainless Steel SS2205

G.Solids Discharge port: Tungsten Carbide insert

H.Bearing: SKF or Japan NSK Brand

J.Gearbox type: planetary wheel type

GN 3 phase decanter centrifuge is mainly designed for Solid-liquid-liquid three-phase separation of materials. With our over 10 years of experience in the separation industry, it is the advanced type machine for 3 phase separation. It is designed for 24 hours continuous and smooth operation throughout the day. It is mainly composed of driving system, decanter bowl, screw conveyor inside the bowl, cover box, skid and VFD control panel. To ensure that the separation process can take place, the solid phase must be the specifically heaviest phase and the two liquid phases must have different densities. GN 3 phase decanter is widely used for oil , water, solids separation industry.

1.Indonesia emulsion and resin projectbackground and introduction

The dryer would be dewatering mixed raw wastewater from 2 sources: emulsion and resin production which has a sticky character. The TS is high (around 10%) but it is still flowable.VTS is 98% and 82%, which means the wastewater does not have much inorganic content. Overload and sludge blocking did not happen at the pilot test. Flocs were formed and sludge cake was produced. The filtrate of the emulsion waste was pinky (dirty) We assume that this could be improved by polymer dosing adjustment.

Treatment capacity requirements by this project: 30 kg-DS/h for Waste activated sludge /Raw wastewater at TS 1%

2. GN sludge dewatering screw press model GNDL-301 features

2.1 Introduction of GN screw press sludge dewatering machine

This is a kind of economic and environmental friendly sludge dewatering equipment. It is a new type of sludge extrusion dewatering equipment by using the principle of screw extrusion, through the strong squeezing force generated by the change of screw diameter and screw pitch, and the tiny gap between the floating ring and the fixed ring, to realize solid-liquid separation.

GN dewatering screw press is composed of fully automatic control cabinet, flocculation modulation box, sludge thickening and dewatering device, and liquid collecting tank. GN dewatering screw press is with automatic control technology, which can realize the flocculation fully automatic operation, and continuously complete the sludge thickening and squeezing, finally return or discharge the collected filtrate liquid.

GN screw press dewatering machine is widely used in sewage treatment projects of municipal, aquaculture, food, starch, oil, pharmaceutical, chemical, paper, leather and other industries

2.2 Features of GN screw press dewatering machine

Suitable for wide range sludge dewatering and can be used for oily sludge treatment.Operating continuously and automatically, not easy to block. Low investment and operation cost, no secondary pollution.Energy saving and environmental friendly, compact design with small footprint.Sludge can be dewatered under aerobic conditions to avoid phosphorus release from anaerobic sludge dewatering.

1. Philippines HYM Oil sludge transfer project introduction

Slop oil treatment design capacity requirement:5-8 m³per hour.in put parameters:Oil:50%,Water: 40%,Solid: 4% by w/w.

Purpose of this project: first stage: exhibition and presentation to potential clients and end user2.Next stage, for pilot sample testing and fesibility verification.

Features and Benefits

1.1 Air Operated to run manually or automatically. Eliminate the danger of electricity.

1.2 Dual Function: Capable for Suction and discharge

1.3 Suitable for clean-up jobs of liquid or mixture of liquid and solids as well as the powder solids.

1.4 Mobile wheels design for easy movement.

1.5 Save manpower, one person is enough to do the clean-up jobs efficiently.

1.6 Optional of different type of suction tools for different conditions.

GN recommended sludge vacuum pump model is GNSP-10B.

2.1Brief introduction

Sludge vacuum pump, also named as solids transfer pump. It is a type of pneumatic pump that sucks the material with vacuum produced by air operation, and then converts to positive pressure for discharging.Most of the solids, sludge and liquid could be transferred by using this pump. With special structure design of no rotating parts in the cavity, it can be used at tough environmental with high working performance and less maintenance. The pump can transfer material with high gravity and high density, solids content max.up to 80%. It has following features: the high efficiency venturi device can produce vacuum up to 25 inch HG(Mercury Column). This is equivalent to vacuum of 85Kpa to suck the material. The pump structure is simple and compact, almost none of wear parts. The transfer distance is up to 500-1000 meters.

2.2 Advantages of GN sludge vacuum pump.

Air operation, no need electric power, suitable for hazardous area application.

Powerful self-suction with long transfer distance. Suction distance up to 50 meters, discharge distance up to 500-1000meters.

Widely application for transferring liquid, wet sludge and solids.

Transferred solids size Maximum50 mm or 75 mm, sludge solids content up to 80%.

Compact structure for easy to move.

None of rotating parts inside the cavity, less wearing for long lifetime.

Automatically and continuously working is available with easy operation and maintenance.

1.Malaysia slop oil separation project introduction

1.1 Slop oil treatment design capacity requirement:5m³per hour.in put parameters:Oil: 10 – 60%,Water: 40 – 90%,Solid: 5 – 20%.

1.2 Weight & Height:Weight & height of machinery and container to comply with regulations set by Malaysia’s Road Transport Department.All equipment system needs to be in containerized

1.3 Sub-total of pre-treatment & heating module unit,Sub-total of sludge separation unit,Sub-total of miscellaneous items.Technical Standards: British/ASME Standards

Electrical Standards: MS IEC 60038 (to comply with Suruhanjaya Tenaga) ATEX Explosion proof Zone 1 to be mobilized into Oil & Gas refinery

2. Main separation treatment process of GN oil sludge treatment system

Main separation treatment equipment of the oil sludge treatment system is the three-phase decanter centrifuge GNLWS364-VFD. Its operation is based on the principle of sedimentation, that is, solid particles with specificliquid weight precipitate in a predetermined time. This principle can also be applied to two immiscible liquids with different specific gravity. When the material enters the high-speed rotating drum, the material rotates synchronously with the drum. Because of the different specific gravity, the centrifugal force is different. The solid particles with the larger specific gravity are subjected to the greatest centrifugal force, followed by the heavy phase liquid (such as water) and the light phase liquid (such as oil). So the centrifugal force is becoming less from outside to inside according to the magnitude of centrifugal force. A concentric solid layer and two liquid layers are formed. Solids are pushed out by the screw conveyor, and liquids are removed from theirrespective nozzles. Therefore, the application of three-phase decanter centrifuge can not only separate the solid in the material, but also separate the two-phase liquid with different specific gravity in the material, that is, Solid-liquid-liquid separation can be achieved.

1. Vanuatu KAWA project introduction
   • Material details for the solid phase in the kava herbal solution, the feed should contain 93 to 95% water, and the discharged solid phase should have a humidity of about 85%.Feed 6.5 solid content, weight ratio, processing capacity 1-2K liters per hour, not sure whether the disc stack centrifuge separator machine can be used.
   • The customer once again explained their processing process and the treatment effect they want to achieve. They don’t want the mud cake to be too dry, so they asked again about the angle of the half-cone angle.
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2. GN Two Phase Decanter Centrifuge Features of recommended model GNLW224ET
   • Description of working principle

The bowl and screw of the decanter centrifuge rotate to the same direction with a certain differential speed. The material is continuously introduced into the screw shaft, and then flies to the bowl after its speed highly increased. Under the action of centrifugal force field, heavy solid phase is deposited on the bowl wall to form sediment layer. The solid is continuously pushed to the cone section of the bowl and discharged through the slag outlet. The light liquid phase forms an inner liquid ring, which is continuously overflow out of the bowl from the liquid outlets at the big end of the bowl Straight section of the bowl is the clarification area, and the cone section is the extrusion drying area.

2.2 T Series Decanter Centrifuge Features

The beach angle of the T Series dewatering decanter centrifuge is 8.5 Degree, which makes the decanter centrifuge cone section longer, that is, the drying and dewatering area of the decanter is longer, which is conductive to the dewatering performance of T series decanter centrifuge, and much drier solid cakes discharged. The beach angle of 8.5 degree will make the slag discharging more smooth so as to increase the amount of slag discharging.