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Monthly Archives: August 2015

Unique features of drilling fluid screw pump

A screw pump is a positive-displacement (PD) pump that use one or several screws to move fluids or solids along the screw(s) axis. This pump has a strong adaptability to medium,smooth flow,small pressure fluctuation and high suction capacity.With unique design of rotor and stator, low rate of pump internal flow and more stable pressure.

screw pump

Features & Benefits of Screw Pump

1. The pump shaft is made of stainless steel and even the whole pump is possible to be made of it.
2. The stator is made of elastomeric material, so it gives the pump a more competitive advantage than the other pump to transfer the fluids of high viscosity and fluids with hard suspended particles content.
3.Screw and machine body are made of stainless steel material which is corrosion resistant and has a long service life.
4. The pump is of compact structure, small volume, easy maintenance. Rotor and stator, wearing parts of this pump, are convenient to replace.

Screw pump can be working for feeding decanter centrifuge. And can also feeding clean water for flushing use. Besides, screw pump for pumping neutral or corrosive liquids, uncontaminated or abrasive liquids, liquids containing gases or which tend to froth, and liquids of high or low viscosity, including liquids containing fibrous and solid material.

Key benefits of mud guns

Mud Gun is a tank-installed tool mainly used to mix and suspend particles and also to reduce solids build up in tank corners.

Key Benefits-

Best used in tank corners to keep solids from settling with an agitator placed in the tank center.
Provide supplemental or primary mixing.
75 ft of head at 100 gpm for optimal performance.
Rotating swivel have lubrication fittings and the ball bearings and seals are easily replaced .

mud guns

Problem Solving-

Mud guns for submerged service are highly effective at producing flow currents that boost fluid movements and aid in the suspension or mixing of particles. Mud guns can create an altemate product when used in conjunction with agitators.

Three inch low pressure guns are constructed of regged materials to resist wear andcorrosipn for long life in harsh conditions, and ball bearings and seals are easily replaced. The 3″ unit is intended for high volume applications, such as mud mixing systems that employ centrifugal pumps.

Advantages of double deck shale shaker

Shale shaker is the first stage separation equipment of drilling fluid cleaning system, also it is the key part for the follow-up processing equipment. There are many types of shale shakers, such as, linear motion, elliptical motion, single deck, double deck, duplex shale shaker and ect.

Now we introduce the advantages of double deck shale shakers for you.

Double deck shale shaker is a kind of linear motion. We use 3 panels on upper deck and same screen for 3 panels for down side deck . This design maximized the screen area and working effect. This also use 2 high power vibrator motor to help for good vibrating performance.

double deck shale shaker

Double deck shale shaker can treat a bigger capacity. The wide-meshed shaker screen on top deck can separate most big size solids before the mud enter into the bottom deck. It greatly reduce the load of bottom shaker screen.

For the same API size and the same screen area shaker screen. double deck shale shaker can separate the drilling mud or drilling cuttings more dryer. As there are 2 times shale shaker separation.

Also, the double deck can be made into mud cleaner. Double deck mud cleaner built in multi-functional  feature allows the operator to handle varying drilling fluid viscosity and solids content with the same unit. Welcome to your any inquires.

Necessary degassing equipment -vacuum degasser

Vacuum degasser is an necessary degassing equipment of solid control system. Vacuum degasser can wipe off the invaded gas from drilling mud quickly, restore drilling mud proportion, keep mud viscosity performance and improve the quality of drilling fluid.

Function and location:

Vaccum Degasser is used to remove the small entrained gas bubbles left in the mud by the mud/gas separator. These units are positioned downstream from mud/gas separators, gumbo removal equipment (if utilized), shale shakers and mud conditioners (if utilized).

vacuum degasser

Unique structure:

Skid-mounting simplifies spotting and installation. The self-contained unit consists of a cylindrical vacuum tank with an internal baffle system, vacuum pump, jet nozzle and three-way float valve.

Working principle:

Gas-cut mud is drawn into the tank through a vacuum created by the discharge jet and the pump. The mud is dispersed in a thin layer over the full-length baffle and, as the entrained gas is freed, it is recovered by the vacuum pump. The gas is discharged at a safe distance from the drilling operation while the restored mud is returned to the drilling fluid system.

DC Solid control main has four types vacuum degasser, respectively are ZCQ240, ZCQ270, ZCQ300 and ZCQ360. You are welcome to contact
with us to get more detailed infos, we will supply cost-effective vacuum degasser and satisfactory pre-sale, sale and after-sale technical services.

Functions of vertical cutting dryer

Vertical cutting dryer already widely used in at home and abroad. It is a vertical type centrifuge that has been proven to be one of the most effective waste management equipment for oil- or synthetic- based drilling operations.

Vertical cuttings dryer can recover up to 95 percent of drilling fluids from cuttings. The substantial reduction in liquid/oil adhesion yields retort analyses of vertical cuttings dryer discards ranging from 6 percent to as low as 1 percent oil weight. The vertical cuttings dryer can reduce the volume of drilling solids waste and associated disposal expenses, ensuring environmental regulatory compliance while maximizing recovery of valuable base fluids.

1

Applications:

1. Separation of liquids (fluids) from solids.
2. Removes of up to 95 percent of oil concentration in residual cuttings.
3. Reduce drilling and waste management costs by complying with local regulations.

2

Features, Advantages and Benefits:

1. The dryer is a compact design, reducing footprint and enhancing operational efficiency.
2. The redesigned effluent route improves flow from the machine, enabling faster drying.
3. An enhanced water-shield design includes upper access doors, facilitating visual inspection of the screen, basket, and effluent area.
4. The lubrication system has been relocated for better protection of external components, enhancing equipment longevity.

You are welcome to contact Tangshan Dachuan Machinery to get more detailed info, we will supply our best service for you.

 

High quality material of DCSB series sand pump

Drilling fluid sand pump is an auxiliary unit of drilling fluid circulating system. It is able to deliver drilling fluid(with suspended particulates) or other liquid media under similar work condition, are the best optional pumps of sand removers, mud recovers and mixing hoppers as well as perfect perfusion pumps of mud pumps.

centrifugal pump

Because of drilling fluids centrifugal pump is always working in the bad environment, the material of them are required to have enough wear resistance and corrosion resistance. At the same time, we should often do some daily maintenance for them when they are used in drilling mud system.

1. Impeller: It must be renewed if serious cavitation ( in particular the main vanes ) and excessive damage.
2. Shaft: repair and maintain or renew it if the run out is over 0.05 mm, the location of lip seal had been seriously bruised and the surface of shaft had been damaged.
3. Shaft sleeve: please renew it if rough surface and serious damage.
4. Lip seal: the dismantled lip seal must be changed.
5. Ball bearing: for the bearing which is too wearing, and too tight, loose or with noise when operating, it is sure to renew it.

pump

DC Solid control has models of the SB serial centrifugal pumps, namely SB series, with engine power ranging from 4Kw to 110Kw, totaling more than 80 of specifications. If you have any specification of sand pump requirements, please contact me. We will providing you the most cost-effective product for you.

Shear pump main features of solid control system

Shear Pump is a professional pump for solids control equipment.The drilling fluid additives are high-molecular polymer, whose molecular weigh is high. It is difficult to hydrate if putting them in the drilling fluid directly. So it is needed to pre-shear the high molecular. This kind of Shear Pump can not only provide high cutting efficiency and accelerate the process of dilute and hydrate polymer, but also offers high capacity and head and satisfy the requirement of mud preparation and processing.

shear pump

As one very important equipment within the drilling fluid circulating system, shearing pumps perform the dual function of cutting and pumping, making the drilling fluid ideally suited for every drilling requirements of reducing solids size and/or protection of it’s downstream equipment.

Features of shear pumps :

1.Shear pump adopts a set of mechanical seal for no leakage at stuffing box
2. Using the unique research and development of mechanical seal technology , novel and unique design at home and abroad , the seal performance is advanced , reliable operation and long service life .
3. Greatly improved bentonite particles hydration degree , reduces the bentonite clay need by 30%.
4. For polymer or clay rapidly hydration provide high shear force , solving polymer (or clay ) in the drilling fluid that hydration is bad and prominent problems .
5. It also reduce the mud cake and fluid loss , reduce drilling fluid shear rate , improve the gel strength , so as to achieve the advanced international level.

Any detail information please feel free to contact me.

Mud separation plant for tunnel shield

A tunnel boring machine (TBM), consists of a shield (a large metal cylinder) and trailing support mechanisms.

At the front end of the shield a rotating cutting wheel is located. Behind the cutting wheel there is a chamber where, depending on the type of the TBM, the excavated soil is either mixed with slurry (so-called slurry TBM) or left as-is (earth pressure balance or EPB shield). The choice for a certain type of TBM depends on the soil conditions. Systems for removal of the soil (or the soil mixed with slurry) are also present.

tunnel shield

Shield tunnel construction technology is the cutting-edge technology of trenchless technology. Shield tunnel is one of the underground construction method with fully mechanized construction. During the construction, shield shell and segment are very important bearing to prevent tunneling collapse. At the same time, the cutting device for soil excavation will be in front of the excavated surface. And the earth will be transport out of the tunnel by machine.

That need Mud separation plant in the domain of shield construction is an important guarantee for shield machine excavation normally. Mud separation plant must be safe and absolutely reliable in the shield tunnel construction.

The function of mud separating system is to processing the mud from shield cutting soil sand formation, and recycling slurry back into slot. The mud separation system includes the first stage equipment- shale shaker, and cyclone separation system. Different shield tunnel with different configured separation device. So any special requirements, please address us.

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