Monthly Archives: August 2018

Shale shaker functions and development in DC Machinery

Shale shakers are the first line of defense for a properly designed solids control system. Shakers have been used on drilling rigs since the 1940’s and are a significant part of the drilling process. Shale shakers work by removing solids from drilling fluid as the mud passes over the surface of a vibrating screen.

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The liquid portion of the mud and solids pass through the screen while larger solids fall off the back end and are thus discarded. Drilling fluids are a key aspect of the drilling process and often lubricate & cool the drill bit and take drilled cuttings from the borehole.

shale shaker

Shale Shakers still remain the backbone of any solids control system. As time has progressed, so have these technologies; more advanced and efficient designs have been cultivated including screen technology.

For more than 10 years, DC Machinery has manufactured effective solids control and waste management equipment. DC Machinery’s driving principal is to provide quality, dependable equipment. DC Machinery is an original equipment manufacturer (OEM) of shaker.

Inventory Mud cleaners of DC Machinery at a discount sales

Mud Cleaner is the second phase or the third phase solids control equipment, and it is a combination of desander, desilter and underneath shale shaker with the features of compact structure, small footprint and great efficiency. It is an ideal equipment as the second or the third phase solids control equipment.

DC solid control company has many different models mud cleaner in stock to meet users urgently requirements. The mud cleaner combination consists of two sets of hydro cyclones: a desander to eliminate particles of 120 – 60 μ, and a desilter which eliminates particles smaller than 60 to 20 μ.

cleaners

The combination of varying physical mud cleaning principles results in a high capacity mud cleaning combination with high a operational efficiency and minimum maintenance, repair and replacement costs.

Hydro cyclones form an extremely cost efficient first step to convert sand and silt loaded mud into relatively particle free fluids. Drilling fluids are pumped at high speed, up to 1500 GPM ( 340 m3/hr) at a pressure of 30 to 40 PSI (2,2 to 2.8 bar) into the hydrocyclone manifold, feeding each hydrocyclone equally.

mud cleaners

The finer particles together with fluid moves upward and escapes through the overflow tube of the hydrocyclone, a small portion of the liquid, together with the coarser particles, is eliminated through the underflow vents, and undergo a final cleaning step in the shaker resulting in ecologically sound operations and lower maintenance and disposal costs.

Mud agitators produced by DC Solid control

Mud agitators are designed to mix and suspend the solids using axial flow, promoting low particle size degradation and effective polymer shear. Unlike mud guns, the DCJBQ mud agitator is relatively a low energy device, easy to operate and inexpensive to maintain.

mud agitator

DC Solid control Oilfield Products is pleased to offer a full-line of Mud Agitators. Mud Agitator Available in 5 -15 horsepower, our extreme-duty mud agitators feature the rugged and reliable Nord gear box for long-lasting performance. Along with the gearbox, all our Mud Agitators include an explosion proof motor, impeller and shaft assembly.

Solids control mud agitators are the mud mixers on Mud Tank. Including the horizontal and vertical type. That is meant by motor mounting direction. Nowadays, more and more users prefer the helical bevel geared agitator.

DC manufacture mud agitator with worm and wheel gearbox, also the agitator with helical bevel gear box. The high performance, efficiency, and quality is appreciated much among clients.

DCS Series shale shakers from DC Solid control

The DCS Series 3 and 4 Panel Linear motion shale shakers meet the needs of solids separation in a large number of different industries. DC Solid control can manufacture several models of shale shakers, each targeting a specific segment of the market. Manufacturing facilities are international standards.

shale shaker

DC Solids Control can design double shakers and triplicate shakers on single skid according to clients’special requirements and also supply relevant connecting manifold, according to current industry situation, DC provide both third generation linear motion shale shaker and fourth generation balanced elliptical shale shaker.

Features of DCS series shale shakers
Heavy duty design and heat treatment for complete shaker deck
Adjustable Linear Motion G force, meet with more application requirement.
Mechanical drive shale shaker deck angle adjustment while working from -2° to 5°
Wedge screen locking system for fast screen change
Fit in with API shaker screen interchangeable with Mongoose frame screens.

DCS linear motion shale shaker can be used for oil and gas drilling, horizontal directional drilling applications, which is the first phase solids control equipment of the drilling mud system, followed by Mud Cleaner (desander, desilter), Decanter Centrifuge.

Vertical cutting dryer used for drilling cutting management

DC Vertical Cuttings Dryer is used in the drilling industry for recovery oil from the drilling cuttings.In drilling operations, typical solids control equipment discards 1-4 barrels of liquid for each barrel of solids removed.

Unlike the first Generation and traditional Vertical cuttings dryer, DC Solids Control has improved the Vertical cuttings dryer with a patented scraper system inside the basket screen, and a high pressure air knife system is fitted to assist in continues cleaning of the screen for the vertical cuttings dryer while working.

vertical cutting dryer

The purpose designed cuttings dryer is an absorption of advanced technologies at home and abroad. It has very strong structure and excellent separation result. The drier is reliable and trustful for your choice of cuttings management applications.

DC Vertical Cuttings Dryer fixed with individual oil lubrication system with automatic alarm for pressure limit. The main motor and oil pump motor is interlocked with each other for avoiding the start of the main motor prior to the start of the oil pump motor.

DC Compact Mud desanding plant for bored pile project

DC compact bored pile desander mud cleaning machine has been widely used in Asia countries to recycling drilling fluids for the foundation construction. DC compact mud system is widely used in Tunneling Construction, Bored Pile, Horizontal Directional Drilling(HDD), etc.

mud plant

DC Solids Control just finished the manufacturing of 3 sets bored pile drilling mud systems for one American customer. DC Solids mud treating systems now is widely recognized by customers from many countries.

mud system

The main component of the DC compact mud desanding plant include a shale shake we use 2 layers shaker screen, with dimension size 900x750mm. Why 2 layers? To achieve higher efficiency, upper shaker screen to separate mud, while down shaker screen to dry drilling fluid.

Bored Pile Desanding Plant is simplified mud recycling system, After intermediate mud pit, DC mud recycling system can efficiently separate the solid and liquid, lower the solids content in recycling mud, drying the waste solids. The bored desander plant is very compact design for easier transportation, and more economic.

DC100YZ100-30 submersible slurry pumps wating for shipping

Submersible slurry pump is a kind of centrifugal pump, we also call it slurry pump. This pumps are widely used in all solid control system to be as an important parts. The submersible slurry pump produced by DC Machinery has the advantages of high efficiency, lower maintenance cost, high temperature resistance, long service life and so on.

Submersible slurry pump

Now, we have 7 sets 100YZ100-30 paint slurry pump in DC Machinery warehouse. This model slurry pump matched with 120m3/h separation equipment is more suitable. Besides, about the paint, we can paint it according to users reuqest, such as, Japan Brand- Kaisai, America Brand- Jotun and Sigma.

The slurry Pump is the cantilever pump structure of single stage and single suction, with the bearing housing, supporting, intermediate pipe connecting the pump hydraulic components, the water is discharged out from the drain pipe parts, pump impeller is for semi-shrouded with the agitating vane on the vane extended.

If you want to know more working principle and efficiency of the 100YZ100-30 slurry pump, please contact DC Machinery or visit our official website.

Users should know how to protect the shaker screens

Operators must consider how to protect their investment beyond purchasing durable screens. Proper maintenance will affect all screens’ quality. On the job site, screens should be stored in their boxes and stacked flat (or in accordance with the manufacturer’s recommendations).

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Mishandling panels, especially during storage and installation, may cause premature 
screen failure. Operators should also make sure that shaker screens are always properly mounted, check for proper tensioning and replace worn deck and crown (channel) rubbers as soon as possible.

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Personnel should never walk on screens when working on shakers. They should also avoid dropping tools on screens. After service each day, screens should be washed down, especially if drilling is occurring in sticky solids such as clay.

Periodically, shaker screens should be thoroughly inspected for tears and holes. If unresolved, these issues will result in a major mud weight problem and may cause a heavy buildup of solids being returned to the active mud tank. Monitoring for extremely high mud weights will also help extend screen life. All personnel must be aware of the proper operation, installation, storage and maintenance of shaker screens.

Wastewater processing decanter centrifuge main parts

DC Machinery high-performance decanter centrifuges provide world-class standards for a wide variety of municipal and industrial wastewater treatment applications including:
Primary waste stream liquid-solid separation
Dewatering of municipal and industrial sludges
Dewatering the concentrated sludge off clarifier bottoms
Thickening and dewatering of biological sludges

As we all know, the main parts of decanter centrifuge are the decanter bowl and decanter scroll.

DCGLW250-980N Decanter Centrifuge 03

Decanter Bowl

The separation medium reaches its maximum speed in the decanter bowl, causing the solids to settle on the bowl inner diameter. A characteristic feature of the bowl is its cylindrical/conical shape. Find out more about the decanter bowl.

decanter centrifuge

Decanter Scroll

The scroll is the transport tool in a decanter centrifuge. It rotates with a differential speed (in relation to the bowl) and transports the settled solids towards the conically narrowing end of the bowl. Find out more about the decanter scroll.

Ustomized to the drilling circulation system of Machinery Mud cleaner

Mud Cleaner is the second phase or the third phase solids control equipment, and it is the combination of desander, desilter and underneath shale shaker, so it can be called Desander and Desilter. With the combination of a desander and desilter mounted over a powerful multi-functional shale shaker, DC’s line of mud cleaners offer both high performance and versatility for the operator.

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With our in-house engineering and design capabilities, DC Machinery can integrate any number of hydrocyclone arrangements with any of our mud cleaners. In all cases, DC Machinery’s hydrocyclones come with polyurethane bodies, where erosion resistant inserts are available.

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In oilfield solids control,drilling mud cleaners are very efficient for oil gas well drilling  mud purification system.Mud Cleaners are one of the important equipment for solids liquid separation system.

The number of the desaner and desitler cones is customized to the drilling circulation system mud flow. And our shaker unit can easily fit in with the hydrocyclones assembly. Please contact us and our sales representative will give you an optimum solution for your system.