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Monthly Archives: October 2015

Need know more matters of slurry pump

Slurry pump is vertical single stage, single suction cantilever type centrifugal pump structure, on the side of impeller suction extend place set agitating impeller, the main characteristics of slurry is the pump shaft of down liquid parts have enough stiffness, between impeller and shell don’t have set shaft seal, it can transport the medium of big density solid particles.

slurry pump

Matters need attention when choose slurry pump

If we want the best application effect of slurry pump, we must choose the right slurry model to meet the requirements of relatively medium, disposing effect. We need the data when purchase slurry.
1. Transportation medium: name, abradability, sticky desulphurization pump degree, solid content and working temperature.
2. Operating parameters: flow or flow range, maximum pressure, mud pump is continuous or intermittent operation.
3. Installation environment: horizontal or vertical, fixed or movement, the special requirements of connection line and anti-

Main characteristics

1. The pump shaft has enough stiffness.
2. Between impeller and pump case don’t have bearing can transport the big density solid particles medium.
3. The length of pump insert the liquid is between 800-2000, if needing can install suction pipe.
4. Shaft seal adopts submerged pump insert the liquid to operate, don’t install shaft seal.
5. The vertical motor is installed on motor supporting and supporting seat connected with pump by coupling.

You are welcome to contact with us to get more detailed info, we will supply cost-effective Submersible slurry pump and satisfactory
pre-sale, sale and after-sale technical services.

The reason why double deck shale shaker sold well

Drilling fluid shale shaker has more and more types with the high requirements of different clients. Now, a type of shale shaker was warmly receipted by foreigns. DC Machinery as a fast growing solids control manufacturer have started design and manufacture double deck shaker.

double deck

DC Machinery double deck shale shaker has the same features with famous international brands. But there are much more difference with qty of screens . 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.

shale shaker

Advantages of DC Machinery double deck shale shaker:

1. Double deck shale shaker has the large treating 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.

2. Double deck shale shaker can separate the drilling mud or drilling cuttings more dryer. As there are 2 times shale shaker separation.

3. Larger vibration motor power with the greater vibration force to get better treating effect.

DC Machinery double deck shale shaker is used as a first stage treatment machine, normally top deck with gap screens and bottom deck with larger mesh screen to boost separation performance. We also can deisgn it accorsding to your special needs.

Dachuan Solid Removal System For CBM

Coalbed Methane (CBM or Coal Bed Methane), coalbed gas, or coal mine methane (CMM) is a form of natural gas extracted from coal beds.In recent decades it has become an important source of energy all around the world.

Usually coal bed methane exists 1000-1500 meters below ground,so its exploration must be through drilling. And methane is a hazardous gas, when it drills from underground,it must separate by equipment, otherwise, it will bring a bad impact to environment.

solid control system

Dachuan Machinery has a professional solid removal system aiming at the CBM.  This system can effectively control the solid phase content of mud between 5μm~15μm in the process of CBM drilling, and at the same time matching mud parameters ratio, promote drilling mud quality, the mud viscosity ratio can be up to 120s and mud density can be 2.4g/cm3.

Besides, this system can improve drilling speed, extend service life of mud pump and drill rig, ensure drilling safety, reduce labor intensity, in the meantime improve drilling site environment which plays a positive role in environmental protection.

Through R & D, Tangshan Dachuan Machinery mastered the technology of CBM well drilling, coring, borehole connection and well completion, among which the CBM pinnate horizontal directional drilling technology is a comprehensive drilling technology that combined horizontal drilling technology, branch well drilling technology, under-balanced drilling technology, cave well connectivity technology in one.

Use common sense of shaker screens

Shale shaker can eliminate solid phase particles, it rely on the screen hole size and shape. Field data shows that, using 12 mesh coarse screen most can remove 10% solid phase in drilling fluid.

In order to more and more fine drilling cutting can be removed, we should use 80-120 mesh fine screen. But it can produce the new questions. The screen hole area of fine screen is less than common screen, then decrease throughput; the fine wire strength is low;
When high viscosity drilling fluid through fine screen, the screen hole is easy to be blocked, even completely paste live.

shaker screen

In order to improve screen service life and resisting blocking capacity, the field is also using the lamination shaker screen, the lower coarse mesh shaker screen has the function of supporting. In addition, between layer and layer have certain space distance double or multiple screen. Usually the upper is used coarse screen, the substory is used fine screen. Upper coarse screen eliminate coarse solid phase, it can decrease the burden for substory.


The shortcoming is; cleaning, maintenance and replace of substory is difficult. Because screen more fine more be blocked, so the amplitude of fine shale shaker is exceeding the common shale shaker. According high amplitude to strong vibrate, it can decrease the congestion extent and prevent screen paste phenomenon.

Special design jet mud mixer for sale

DC Machinery provides a superior mud mixing and blending system that utilizes its proprietary technologies to mix faster, while delivering complete hydration and a more homogeneous, consistent drilling mud that improves drilling and mud mixing efficiency.

The most important part of mud mixing and bledning system is the drilling fluid jet mud mixer which is used to make and mix drilling fluid to change the density and viscosity. This device can satisfy the fluid weighting and mixing of drilling solids control system for 1500m-9000m drilling.

jet mud mixer

The jet mud mixer consists of one sand pump and one jet mixing funnel which are installed in a base with pipe valves. Double jet mud mixer can be also produced according to your requirements.

Our jet mud mixer designed to be the optimal solution for mixing of both mud bulk material and mud additive chemicals into the drilling fluid. The unit has an optional plenum chamber to collect material flow from different sources, such as the surge tank, sack slitting machine and manual sack slitting table.

There’re many models of jet mud mixer available. DC Solid control can provide jet mud mixer as per customer’s special requirements.


Introduction of linear motion shale shaker specification

Linear motion shale shaker is a high efficiency screening equipment, it can separate and grade of powdery and particles, it is widely used in mine, coal, smelt, building materials, fireproofing and chemical industries.

Principle of linear motion shale shaker

Linear motion shale shaker is made of hydraulic lift device, vibration motor, explosion-proof switch, foundation, logging tank and screen. It uses double vibration motor, when the two sets vibration motor do the synchronization and contrarotation, the exciting force is produced by eccentric block is cancelled out with direction of parallel with motor shaft line and fold a resultant force with the direction of perpendicular to motor shaft. So the motion of screen machine is linear. There is a dip in the sifter where is the two motor shaft relatively, in the resultant force of exciting force and gravity the material is throw and do linear motion movement to reach the aim of screening and grading.

linear motion shale shaker


1. Energy consumption is low, efficiency is high, the structure is simple and easy to maintain, whole sealing structure and don’t have dust comes loose.
2. The high performance shale shaker in the high displacement processing can eliminate big or small particles which the percentage composition is low.
3. It can separate particles and powder into different particle section. The single shale shaker can matched multilayer screens and continue separate 2-6 particle grade to control the small particles size range.
4. Shale shaker extension can eliminate the insoluble solid in all kinds of mud.

Shale shaker for solids control are devices that remove drill cuttings from the drilling fluid while circulating and drilling. There are many different designs and research into the best design is constantly ongoing since solids control is vital in keeping down costs associated with the drilling fluid. Any requirements please contact me freely.

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