Month: March 2022

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