Author: gnadmin

1.Korean Waste food treatment plant Project introduction

First crushing and Screw Press separate most of solids. After liquid is going to 3 phase decanter to separate oil and rest of solids.Makeup of the waste (%wt oil, water and solids):6% SS and 5%~6% oil, the rest is water.After Screw press process there is no big particles.Volume of waste to be treated capacity is 16ton/h and operating 8 hours per a day.This plant is new there is no 3 phase decanter. New plant they want to install 3 phase decanter for removing oil. Many new waste food treatment plant is going to install 3 phase decanter since some years.Delivery time to customer is September 2023.

2. GN 3 Phase Decanter CentrifugeIntroduction and advantages

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. The main difference between the 2 phase decanter and 3 phase decanter is that the 3 phase decanter not only separate the solids but also separate two phase of the liquid. GN 3 phase decanter is widely used for oil , water, solids separation industry.

2.2 Advantages and special features

2.2.1 Stainless Steel VFD Control Panel

1.Excellent corrosion resistance and long service life

2.Minimum IP55 protection level meets outdoor use demand.

3.The positive pressurized explosion-proof control panel can be made according to requirement.

2.2.2 Famous brand electric components

1.VFD from Yaskawa, ABB or Siemens series

2.PLC and touch screen from Siemens or other famous brands.

3.Circuit breakers and other components from Schneider or other famous.

4.Common DC (Direct Current) bus energy feedback braking is adopted to achieve the purpose of energy saving

2.2.3 Automation and intelligence

The Constant Torque control system can be realized according to the demand. 2. The complete monitoring and alarm system can meet the requirements of bearing temperature rise protection, vibration monitoring and protection, overload protection, etc. 3. Control and display bowl speed and differential speed. Monitor the current of main motor and back motor. 4. Automatic flushing and dosing control can be equipped according to customer requirements

1.Philippines VCO Project background and introduction

Philippines VCO projects to be funded by the Philippine government for the next 50 years with a yearly budget of about UD$ 9M. We working in this since 2015 but the law was only enacted and signed 2 years ago and the implementing rules only approved in 2022. The initial fund of US$ 9M was released June 2022 but the government agency tasked to implement and bid out the projects failed to complete the bidding documents.

We recommended the “design and build” approach in selecting suppliers instead of buying individual machines from various suppliers. There is a confidential document called terms of reference or TOR which can be used as one of the bidding documents by the government agency in charge of the coconut projects. We’ve incorporated GN specs for 2x disc separators and 1x tubular separator in each project. Since the US$ 9M was not used in 2022, this money reverts back to the government and can no longer be accessed for subsequent years. A new budget of US$ 9M is released for 2023. Up to this date, the government is not yet ready to bid out but they are now pressured to use the budget for this year, otherwise, the Philippine Senate will start investigating why they are not able to set up 5-10 coconut processing plants each year. Based on the process flow we’ve submitted to the government, each project will need at least 2 disc centrifuges and 1 tubular centrifuge.

2.GN Disc Stack Separator machine brief introduction.

The disc stack separator is also called disc separator, disc centrifuge or conical plate centrifuge, which belongs to a type of vertical centrifuge. The disc separator is driven by a motor and rotates at high speed. In the bowl of the disc separator, there is a set of disc-shaped parts nested with each other-commonly known as discs which are used for centrifugal sedimentation of materials. The suspension (or emulsion) to be processed enters the bowl of the disc separator through the feed pipe and flows through the gap between the discs, the solid particles (or droplets)settle on the disc under the action of the centrifuge to form a sediment (or liquid layer).

The sludge slides along the surface of the disc to separate from the disc and accumulates in the inner bowl where the d犀利士
iameter is large, and the separated liquid is discharged from the bowl through the liquid outlet. By using the disc separator, solid-liquid-liquid 3-phase separation or solid-liquid separation is realized.

1. Project brief introduction

Customer name:SERVICIOS EINGENIERIA COLOMBO MEXICANOSSICOLMEX SA DE CV

Waste water plant GN screw press sludge dewatering machine model GNDL201 application date:Oct.2021. Material Composition Before Treatment:Wet Sludge at 3% solids

1. GN screw press sludge dewatering machinemain specifications and advantages

2.1 GN screw press sludge dewatering machine Brief Introduction

GN screw press sludge dewatering machine 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 project樂威壯
s of municipal, aquaculture, food, starch, oil, pharmaceutical, chemical, paper, leather and other industries

2.2Advantages of Screw Press Sludge Dewatering Machine

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

1. Project introduction

1.1Customer Project Plant Address：Sarangani Energy CorporationKamanga Agro Industrial Econominc Zone Brgy. Kamanga, Maasim, Sarangani Province, Philippines 9502

1.2 Customer requirements:

For Sludge concentration, image below shows 40 to 80 % moisture.

Particle size range of 500 to 800 microns (average) sludge of aluminum based coagulant

75% Calcium coagulation sludge and 25% lime softening sludge. Other use : sand silt (50% moisture),29degC for material and 32degC for Ambiet

2.GN solids/sludge vacuum pump Model GNSP-40B introduction.

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

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. Project introduction

Customer plan to use humprey spiral and then shaking table after High Frequency Fine Vibrating Screen

And for the fine material, they plan to use advanced separator from GN to separate the fine tin in tailing.

2. GN High Frequency Fine Vibrating Screen introduction

2.1GN High Frequency Fine Vibrating Screen is a product developed by GN company, Using the principle of two-degree-of-freedom resonance, a single excitation source(dual imported vibration motors) is designed to drive the whole machine to realize linear vibration.

2.2The equipment has the advantages of large screening area, adjustable screen box angle, compact structure, excellent performance and high cost performance.

2.3 The equipment has unique vibration mode,energy saving,high screening efficiency, large processing capacity, advanced  technology, simple structure,stable and reliable operation, and is currently the advanced equipment in the field of fine-grained material screening.

2.4.This series of screen machines can use flexible polyurethane screen mesh,with high opening rate(28-45%),and the average life span is more than 6months.

3．High Frequency Fine Vibrating Screen Application

This series of equipment is suitable for wet or dry screening,classification and dewatering treatment of fine-grained materials in beneficiation, coal preparation and other industries.

4. Working Principle

The screen box assembly of the vibrating screen is arranged in a single layer and multiple sections. The working method is to use two counter-rotating vibration motors as the vibration source to force the screen mesh fastened in the screen box of the screen machine to receive the overall linear vibration transmitted by the screen box assembly. This vibration is transferred to the over-screen material through the screen mesh, so as to achieve the purpose of vibrating screening.

5. Polyurethane Screen Mesh Features

Flexible polyurethane screen is a kind of high molecular polyurethane elastomer with excellent physical and mechanical properties: high strength, high elasticity and high wear resistance. After repeated tests, the excellent formula is determined, and the product is manufactured with precision mold processing technology and unique advanced molding technology. This product is suitable for metallurgical mining, coal, non-ferrous metals and other industries.