GN Nodig Mud Recycling System

1.Project introduction.

1.1Design Capacity: Total Mass Flow (Metal Slurry) : 12.5 ton/hr ;Liquid Flow : 10.4~8.8 ton/hr;Solid Flow : 2.1~4 ton/hr

1.2Inlet Condition: Operating Temperature : 60 degC；Operating Pressure : Max. 3.5 kg/cm2g, Nor. 1.5~2.5 kg/cm2g；Operating Time : 24 hours per day, Continuous；Solid Concentration : 20~30 wt%

1.3 Liquid Phase Information:Component : water (99.7%)；pH : 11~13；Viscosity : Less than 5 cP；Density : 1,040 kg/m3

1.4 Solid Phase Information:Component : Metal Particle Size : 10 micron meter (D50)；Density : 4,400 kg/m3；Type of Solid : Sticky and wetted、

2.After separation process target:

Product Specification: Solid Recovery : 99%；Moisture contents : Less than 28%；Type of Cake : Stackable.

 

3.GN recommened Decanter centrifuge mode威而鋼
l: GNLW364ET-VDF

3.1 Introduction:

GN dewatering / Thickening decanter centrifuge is T series decanter centrifuge with beach angle of 8.5 degrees. GN T series decanter centrifuge is usually used dewatering and thickening purpose. It is widely used for maximum dewatering requirements of municipal and industrial wastewater sludge. The dewatering decanter centrifuge is designed for easy separation material include large particle size, high density difference of solid and liquid, low viscosity, high concentration, high treatment capacity and higher dryness than clarity. The materials like sludge or wastewater containing fine particles usually need to be added with flocculants to gather the fine particles condensed into large ones, and then dewatered with T series decanter centrifuge.

3.2Appliaction Arena or fields

Drilling mud, environmental protection sewage, oily sludge, cutting fluid, sand washing water, mineral washing water, soda white mud, salt mud dewatering, magnesium aluminum emulsion, steel-making wastewater, precision casting wastewater, construction mud, tunnel mud, mine wastewater, industrial wastewater, organic wastewater, aquaculture wastewater, chemical industrial wastewater, printing and dyeing wastewater, municipal sewage, river sludge, water plant sludge, lake sludge, kaolin grading, calcium carbonate, bentonite, Silica, titanium dioxide, calcium sulfate, barium sulfate, conductive film glass polishing solution, aluminum hydroxide, cryolite, silicate, oil sand separation, landing oil, oil sludge, coal tar, inorganic fertilizer, Chinese medicine extraction such as taxus chinensis, honeysuckle and liquorice, clarification, concentration and dehydration of salt crystals, etc

1.Project introduction.

1.1Project holder：The company was established in 2005, with professionalism, safety, and service as the foundation. It is mainly engaged in oil tank cleaning related projects. It is the best choice among environmental cleaning companies. It upholds the spirit of service and has a professional team. Dayichang is based on professionalism , safety and service . It mainly focuses on oil tank cleaning related projects. The principle of mutual benefit, to create mutual benefit value and future.Introduce foreign advanced technology of unmanned tank cleaning], and use technology to meet the various needs of customers in the real world.

1.2Project details: Used for 84 metres Tank cleaning, crude oil tank, light oil tank, chemical tank, underground storage tank, overall planning and construction and internal and external renovation projects.

2.GN oil sludge vacuum pump.

The chosen Model is GNSP-40B and GNSP-10B GN oil sludge vacuum pump.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. 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 500-1000meters.

1.Project Introduction

1.1 One High Speed tubular centrifuge for microalgae harvesting and one feed Peristaltic pump for treating capacity Volume: 900L and biomass concentration: ~30g/L (3%) microalgae size: ~4µm

1.2 Expected dryness of microalgae: After treatment, the moisture content in microalgae is about 30-40%

1.3 Expected volume of microalgae: The expected collection rate 95% or more, and solids larger than 2µm can be separated

1.4 5 times separation processes are required for 900L feed with above condition. Re: 5 times

How long is each separation process?

1.5 110 minutes for each separation process, including shutdown, dismantling to collect solids, cleaning drum about 50 minutes.

1.6 900L material will takes about 550 minutes in total.

1.7 The peristaltic pump tubing is made of silicone material, and it is estimated to be 1 year

2.GN Tubular Centrifuge model GNGQ142G introduction

2.1 High Speed Tubular Centrifuge is a kind of fine separation equipment, which is especially suitable for the solid-liquid separation of suspensions with thin concentration, fine particles and small solid-liquid weight difference, or liquid-liquid-solid separation. It is necessary equipment for Industries of pharmaceutical, food, chemical, and biological products, fermentation broth, beverages, blood products, etc.

High Speed Tubular Centrifuges is artificial slag removal equipment, and the processing capacity is limited, so it is generally used for working conditions with low solid content and relatively small processing capacity.(GNGQ) Clarification Type Tubular Centrifuge

2.2 The centrifuge rotates at a high speed to reach a suitable working speed (the speed can be adjusted by the electric control panel), and the feeding inlet is continuously fed from the bottom, and a certain feeding pressure (greater than 0.05Mpa) is required.

The specific gravity of liquid phase in the feeding inlet is lighter, and it gradually spirals upward from bottom to top to continuously discharge from the clear liquid outlet at the upper part of the rotor.

2.3. The specific gravity of solid phase is relatively heavier, and it settles inside the rotor. After the solid is collected and full in the drum, the machine stops, and the rotor is manually removed for slag cleaning.

2.4. After the slag removal is completed, the rotor needs to be installed and reset, and then the next separation process begins.

This process can achieve solid-liquid separation.

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.