Author: gnadmin

GN Classification Vibrating Screen is widely used in the classification and screening of iron ore, coal, non-ferrous metal ore, building materials, chemical industry, and other materials. The equipment adopts advanced design means such as finite element analysis and anti-fatigue analysis to ensure the reasonable structure, low energy consumption, and large screening and classification capacity of the screening machine. It can be applied in various working conditions that are easy to corrode and wear. Large processing capacity, high efficiency, and stable performance. The size of the screen machine can also be customized according to customer requirements. Two vibrating motors are installed on the GN classification vibrating screen, and the screen body moves in a linear line by using the principle of reverse self-synchronization. The screen body drives the screen panel to vibrate synchronously, transmits the force to the materials on the screen panel, and impacts materials to throw up on the screen surface for layering, and through the screen graded according to the specified particle size. The materials are continuously buffered and input from the feeding trough to the receiving plate screened and graded through the screen surface. And the materials above and below the screen are discharged into the receiving trough above and below the screen respectively to enter the next process link. The included angle between the direction of vibration force and the horizontal direction can be designed according to the properties of the materials on the customer’s site. This included angle determines the running speed of the materials on the screen surface and the processing capacity of the equipment.

 

CLASSIFICATION OF VIBRATING SCREEN-LINEAR MOTION TECHNICAL CHARACTERISTICS & ADVANTAGES

The wallboard is not welded. The steel plate with better impact toughness and cold bending is selected, and the imported HUCK rivet is used for hydraulic tension assembly. This advanced design makes the wallboard free of welding residual stress and material defects, so as to avoid the reduction of fatigue strength of the wallboard due to the above defects.

Through finite element analysis, optimize the structural strength and vibration quality of the screen machine to the greatest extent, reduce stress, and prolong the service life of the equipment.

The fluids touching parts and easily worn parts are sprayed with polyurea by the spraying machine imported from the United States, which is corrosion-resistant, erosion resistant, and wear-resistant.

The post-weld heat treatment process of main components can effectively eliminate the welding stress.

Product serialization to meet the manufacturing requirements of customers under different process conditions; Polyurethane screen panel is modular, more versatile, and more convenient to replace.

The whole machine is installed at a positive inclination angle, and the installation angle is 4 degrees adjustable, which is suitable for the requirements of different process materials.

The plane design of the whole screen surface is more conducive to screening and grading materials and maximizes the effective screening area of the screen surface.

The rubber damping spring design has the advantages of good damping effect, low noise, small resonance field, good resilience, stable mechanical performance, long service life, and low cost.

Because drill cuttings have high solid content, poor flowability, large solid particles, and strong abrasive, the conventional pump cannot meet the transportation needs of drill cuttings. Although screw conveyors can be used for horizontal transportation, there are many drawbacks, such as long installation, large floor area, and liquid backflow when working at an inclined angle.

GN drilling cuttings transfer pump is specially developed to solve the problem of drilling cuttings transportation. GN cuttings transfer pump uses hydraulic cylinder and S-type manifold valve, which is popular in international machinery industry, to transport drill cuttings into S-type manifold valve by reciprocating movement of the hydraulic cylinder. All technical performances and comments on the site are good. This pump is a kind of transfer equipment that can transport the injection of high solid content materials to the destination site through the pipeline.

GN Drilling Cuttings Pump is widely used for moving cuttings which occurred in oil exploitation, trenchless field, river dredging, and some other drilling activities. Materials such as mortar, sludge, coal sludge, mud, and other semi-fluids can also be transferred effectively.

In the drilling mud treatment process, the GN cuttings transfer pump is widely used to transport the drilling cuttings to the cuttings dryer.

Advantages of GN Cuttings Transfer Pump

• Convey drilling cuttings with high solids content, large particles, and poor flowability.
• Compared with the screw conveyor, it occupies a small area, meets the feeding requirements of drilling cuttings dryer without backflow.
• High working efficiency: An international advanced S-type manifold valve is adopted, and the reliability of the system is greatly improved.
• Bearing and seal adopt international famous brand, stable operation and long service life.
• Motor support and hydraulic components, using well-known brands to ensure long-term stable operation.
• Long spray distance: up to 100 meters horizontally and 40 meters vertically.
• A centralized lubrication system effectively prolongs the life of wearing parts.
• Frame type design is adopted outside the cutter pump, which is compact and flexible, convenient to lift and move, and simple to maintain.
• The lift design meets the operational requirements of the offshore platform and CCS certification or DNV 2.7-1 lift certification can be performed.
• Motor and control boxes can be equipped with CNEX Zone 1, ATEX Zone 1 or IEC Ex Zone 1 explosion-proof.

GN Solids Control designs and manufactures different sizes of liquid sludge plants according to your needs. We can design and build as many vertical tanks, rectangular tanks, round tanks, etc. depending on your space and requirements.

 

The Liquid Mud Plant is installed for one main purpose and that is to maintain good properties of the drilling mud in the wellbore as much as possible. Within each drilling fluid supply base, you can usually find which “Mud” companies are working offshore from this base, as they are represented in the form of a Liquid Mud Plant. This liquid mud plant is used to handle (mix, dilute, treat, adjust) various drilling fluids to be used in the wells supported by this supply base. You can also find expanded drilling waste management (DWM) or solids control processing for drilling mud here, usually in the form of decanter centrifuges used to treat used mud that has been recharged at the supply base. . Offshore supply vessels are used to transport any drilling or completion fluids to and from the Slurry Plant that cannot be mixed or treated on-site.
Types of tanks for slurry plants
 Oil-based mud tank
 Water-based mud tank
base oil tank
 Water tank
 Brine tank (fiberglass tank or liner protection)
 Refrigerated tank
 Mud mixing tank
Equipment used for a liquid sludge plant
Typically, a decanter centrifuge manufactured by GN Solids Control will be used for drilling mud solids control. Sometimes customers will need a vibratory screen for coarse solids removal. Mud agitators are mounted on mud storage or mixing tanks to agitate mud and prevent the settling of solids in fluids. Sometimes GN mud guns will be needed for agitation, especially for the corners of the mud tank. Mud mixing and chemical addition are done by mud mixing hoppers and centrifugal pumps. GN Solids Control manufactures the Decanter Centrifuge, Shale Shaker, Mud Agitator, Mud Gun, Centrifugal Pump, and Mud Mixing Hoppers for Liquid Mud Plant.

 

GN Solids Control has different sizes of centrifugal decanter for the treatment of sewage sludge. We have a specially designed decanter centrifuge to meet the requirements of sewage treatment plants and the sewage industry.

The GN decanter centrifuge can be used to dewater and thicken the suspension of wastewater. The unique properties of the centrifuge bowl with a specially designed gearbox drive and intelligent control system will guarantee the performance of the NG municipal sewage sludge decanter centrifuge. To achieve maximum dewatering and thickening of municipal sewage slurry, GN VFD or hydraulic drive centrifuge is available to set differential speed from bowl speed. The purpose of GN’s design for environmental solutions decanter centrifuges is to have reliable performance as well as the best price/performance ratio for investors.

Advantages of Sewage Sludge Decanter Centrifuge

VFD drive system and hydraulic drive are available for options.

Specially designed for the treatment of sewage sludge to save clean water

Cost-effective solutions to meet the customer’s purpose.

High-speed balancing machine to ensure stable operation.

The machine is compact and easy to use for maintenance work.

Easy on-site parts exchange to minimize downtime.

 

Municipal sewage sludge treatment includes dewatering and thickening by the decanter centrifuge. The objective of sewage sludge dewatering is the maximum reduction of the volume of the sewage slurry. Due to the dry matter in the sludge, it is very important to save the sludge disposal cost.

For sludge thickening, to improve overall performance, efficient separation and lower polymer consumption are important for municipal sewage sludge treatment plants.

GN branches and partners around the world are ready to help our customers and provide solutions with our decanter centrifuge for your municipal sewage sludge treatment.

 

GN screw press sludge dewatering machine is a kind of economical and environmentally friendly sludge dewatering equipment. It is a new type of sludge extrusion dewatering equipment using the principle of screw extrusion, through the strong compression force generated by the change of diameter and pitch of the screw, and the small gap between the floating ring and the fixed ring, to perform solids -liquid separation. GN dewatering screw press is composed of the fully automatic control cabinet, flocculation modulation box, sludge thickening, and dewatering device, and liquid collecting tank. GN dewatering screw press has automatic control technology, which can realize fully automatic flocculation operation and continuously complete sludge thickening and squeezing, finally return or discharge collected filtrate.

 

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

 

Features of screw press dehydrator machine:

• The main body of the screw press sludge dewatering machine is a filtration device composed of a fixed ring and a movable ring, in which the screw axis runs. The front section is for concentration and the rear section for dehydration.
• The filtrate gap formed between the fixed ring and the moving ring of the dewatering screw press and the pitch of the screw shaft gradually decreased from the concentrating section to the dewatering section.
• The rotation of the screw press shaft not only pushes the sludge from the concentration section to the dewatering section but also continuously drives the moving ring to clean the filter space and prevent clogging.
• After gravity concentration in the concentration section, the sludge is transported to the dewatering section. In the process of advancing, with the gradual decrease of the filtrate space and the pitch of the screw, and the locking effect of the backpressure plate, the large internal pressure is generated; leader, the volume is constantly reduced, in order to achieve the purpose of complete dehydration.
• The dewatering screw press is generally applicable to sludge concentration of 2000mg/L-50000mg/L

The GN vibrating shaker, hydrocyclone and decanter centrifuge are widely used in the mining industry for mineral, raw material, and ore extraction processes. GN Solids Control separation equipment is for the separation of different solids to clarify minerals or recycle water. GN separation technology has been applied worldwide to support the mining industry. Our client uses our separation equipment to increase their profits and optimize their procedures with smart solutions.

 

Separation solutions in mineral processing

Very different ore processing, such as gold and silver, lanthanoids, lead and zinc, nickel and copper, platinum are suitable to be processed with GN separation equipment. The ore processing operation varies for different customers, but separation or clarification is very important. Especially in the production of precious and non-precious metals. Among the separation equipment for mineral processing, the GN decanter centrifuge is the key performance equipment.

Separation equipment in mineral processing

GN decanter centrifuge is the key equipment for processing different kinds of minerals including calcium carbonate, zinc sulfate, aluminum hydroxide, kaolin, barite, titanium dioxide, etc.

There are many options for methods in mineral processing, it can be mechanical processing or chemical processing, GN decanter centrifuge designed for the mining industry is popular for cosmetic processing for the paint industry and processing in the paint industry. ceramics

Advantage of GN separation equipment for the mining industry

• More equipment options from vibrating screen to hydro cyclones and decanter centrifuges.
• Super protection against wear through tungsten carbide or special ceramics.
• Intelligent PLC and HMI control allow customers continuous and fully automatic operation to save labor.
• Cost-effective solution specially designed for your project to produce high quality and purity of the final product.
• Energy-saving, less footprint, ecological.
• Sample testing services to select the best solutions for your application.

The GN Shale Shakers are widely used for solids control, they are equipment that allows drilling cuttings to be removed from the drilling fluid and this entire process is done while circulating and drilling. In recent years NG technology has been improving, many different designs have come onto the market, and research on the best design is constantly progressing as solids control is vital to keeping down the costs associated with drilling fluid.

The primary principle of these Shale Shakers is to shake or vibrate the meshes with the drilling cuttings, with the motors vibrating it generates a centrifugal force that makes the equipment shake in Linear or Elliptical mode causing the drilling fluid to flow through Shakers Screen and return the drilling fluids or to another stage in the mud system, with this principle it separates the drilling cuttings or commonly called fluid solids from the drilling fluid so that it can be recirculated back to the well.

 

GN Solids Control is constantly producing Shale Shakers to serve the world market with these solids separation equipment. GN exports Shale Shakers to the most important markets in the drilling industry, including the United States, the Middle East, Russia, India, among others; They always choose us as the supplier par excellence due to our trajectory and professionalism. GN currently has International Certification in Quality Management System ISO 9001-2000. GN Solids Control operates the international sales, service, manufacturing, and distribution of oil and gas drilling mud separation systems.

With the passing of time, GN Solids Control is consolidating itself in the world market and shows its customers every day that its equipment has taken a huge step forward in the market, taking it to another level in terms of design and technology, having as strategic partners to well-known brands in the environment such as SIEMENS, Schneider brand for its electrical components and its vibration motors OLY from Italy and US Martin. Our Shale Shakers are made to last and stay on the market for a long time.

The GN mud dewatering unit is an excellent solution that could provide the separation processing for the ultra-fine solids’ particles, always less than 5 microns, in the water base drilling mud.

Description

The mud dewatering unit is an excellent solution that could provide the separation processing for the ultra-fine solids’ particles, always less than 5 microns, in the water base drilling mud.

Why Need a Mud Dewatering Unit?

As it is known during a normal drilling mud solids control processing, the primary equipment like shale shaker, desander, Desilter, even the decanter centrifuge can only remove the solids larger than 5 microns. For the solids less than 5 microns, it is difficult to separate out by using the regular mechanical method. After several times for using and recycling the drilling mud, the ultra-fine solids will build up to a large content in the drilling mud, which will disrupt the mud property. In order to maintain the mud property at a proper level, the operator needs to add water into the mud for dilution which will cost a large quantity of water. Here is the point, the mud dewatering unit is used to remove the ultra-fine solids from the drilling mud to prevent the built-up. Thus, great would be saved.

GN’s mud dewatering unit is designed to be fabricated inside a container. According to the equipment quantity involved in the system, the 20 ft or 40 ft container would be optionally chosen. After being treated by GN’s dewatering unit, the drilling mud could be treated as clean water for discharge or reuse.

GN Drilling Mud Dewatering Unit Processing Diagram

 

• A 3-Tank Automatic Flocculants Mixing Unit prepares the polymer or other chemical fluids.
• A Slurry pump takes the original mud feed to the decanter centrifuge.
• A chemical pump takes the mixed chemical fluids and then feeds them to the centrifuge.
• The chemical and mud mix inside the feeding tube of the decanter centrifuge.
• The Decanter centrifuge works to remove the flocculent-shaped solids from the mud.

GN High G Force Drying shaker is designed for primary solids control and drying the cuttings from the primary solids control equipment, recovering silts, and ultra-fine sands, providing solids in a consistently stackable and conveyable form and requires no expensive chemicals or polymers. GN high G drying Shaker with Adjustable G force Up to 8.0 G.

 

Shaker Models GNZS594F-SGZF, GNZS703F-SGZF

 

High G Drying Shaker Features

• Heavy-duty design and heat treatment for complete shaker deck to give adjustable Linear Motion G force up to 8.0 G to meet more application.
• Anti-Corrosion Stainless Steel for the shaker bottom frame to give high strength and longer operation.
• Patented rubber sealing system between shaker screen and shaker bottom frame to allow operators to use pre tensioned shaker screen without sealing rubber.
• Wedged type shaker screen locking system for fast screen replacement, prevention API shaker screen interchangeable with international top brand shakers with steel frame or composite material shaker screens.
• Patented mechanical drive shale shaker deck angle adjustment while working system.
• Simple stainless steel shaker locking system to protect the spring while moving.
• Rubber Covered dumping spring for less noise, safety, and longer life.

 

Process of the High G Drying Shaker Operation:

 

 

The drilling cuttings discharged from the primary shale shaker and desander desilters will be picked up by a screw conveyor, and another screw conveyor will take the drilling cuttings to feed to the High G drying shaker. Sometimes, the client will install a low-profile drying shaker just under the solids control tank to feed to the drying shaker directly. The drilling cuttings will be dried by the high G shaker, and fluids will be caught by the tank under the shaker, a centrifuge feed pump will take the fluids and feed them to a high-speed decanter centrifuge, after treatment by the high-speed decanter centrifuge, the fluids can return back the active mud system for reuse.

 

With the increasing emphasis on environmental protection all over the world and the scarcity of water resources, every country has continuously improved its environmental protection processing technologies. GN Separation has released a series of separation and conveying equipment to meet the requirements of customers coming from the environmental protection industry for new technologies. GN separation and conveying equipment is widely used in the environmental protection industry for wastewater treatment. GN Separation cannot only provide users with single equipment but also provide turnkey solutions of material separation and conveying for customers in the environmental and wastewater industry. Long-term consumption can enhance physical fitness and is good for health.

ENVIRONMENTAL & WASTEWATER INDUSTRY COMMON APPLICATION

Municipal wastewater includes industrial wastewater and domestic wastewater. The typical urban wastewater treatment process mainly includes mechanical treatment, biochemical treatment, and sludge treatment.

Recovery of various waste oils, including waste residues and oil-water mixtures at the bottom of oil storage tanks, oil residues and waste oils in oil refineries, grease dirt in sewage tanks, waste oil-water mixtures in ships, API oil-water separation oil sludge treatment, lubricant, and grease produced in industrial lubrication production systems.

Oil sludge mainly includes waste oil sludge from the cleaning of crude oil tanks, waste oil sludge from oil refineries, and oily waste from oil and gas drilling. GN oil sludge hot washing technology can reduce the oil content of sludge, recover useful oil, and recycle hot wash water.

The deposit silt in the river or lake is firstly cleared by the dredging boat, and then dewatered and separated by GN multi-stage separation and conveying equipment. The recovered solid can be used for construction or farmland fertilizer, and the recovered water can flow back to the river or lake.

Sand washing is very important for sand and stone extraction, but sand washing also produces a large amount of polluted wastewater. In many places, separation tools such as decanter centrifuges are used to clean sand and gravel washing water.