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October 31, 2021December 21, 2021

KOSUN Standard KSMR-1000 HDD Mud Recycling System

KOSUN KSMR-1000 HDD Mud Recycling System is applied to construction projects with higher mud capacities. Its purification process is divided into three stages: shale shaker for the first stage, desander and desilter respectively for the second and third stages. Both desander and desilter are equipped with underflow shakers that can carry out a further treatment to solids discharged by the upper equipment. By mud preparation devices, add necessary mud materials into purified mud and stir them evenly to prepare mud with qualified properties for recycling, which can greatly reduce construction costs and effectively protect the environment.

Parameters of KOSUN KSMR-1000 HDD Mud Recycling System:

System Capacity: 1000GPM (240m³/h)

Particle Size after Treatment: 15~44μm

Total Screen Area of Shale Shaker: 2*2m2

Total Screen Area of Underflow Shaker: 2m2

Processing Stage: three stages

Total System Power: 184kW

Total System Volume: 30m³

External Dimensions of the System: 12100×2630×4438mm

KOSUN produces standard HDD Mud Recycling System, such as KSMR-200, KSMR-500, and KSMR-200. KOSUN can also customize exclusive mud recovery systems according to the different needs of customers.Want know more about our Standard Trenchless KSMR-1000 HDD Mud Recycling System, Please Contact us now!

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

October 19, 2021November 29, 2021

Features of trenchless mud agitator

What is trenchless mud mixing equipment? Trenchless mud mixing equipment refers to mud agitators. As the name implies, a mud agitators is a kind of mud mixing equipment used to mix mud. The main function of the mud agitator is to evenly stir the mud to suspend the sedimented solid particles in the mud tank, and will not adhere to the wall of the mud tank or settle on the bottom of the tank, resulting in a reduction in the capacity of the mud tank. The mud agitator not only improves the production speed, but also saves the economic cost of the project.

Characteristics of trenchless mud mixing equipment-mud agitator:

1) The structure of the mud agitator is compact and stable, compact in size, safe and reliable.

2) The height-to-width ratio of the mud agitator is nearly 1:1, the center of gravity is low, and the stability is good. When the impeller encounters an instantaneous impact load, it can still operate stably and safely.

3) There is a high-strength single-stage worm gear reducer inside, so the work runs smoothly and evenly.

4) The reduction ratio of the new turbine transmission of the mud agitator is 20:1, which has extremely high working efficiency.

5) The shaft length of the mud agitator is designed according to the depth of the mud tank. A shaft stabilizer is generally required when the tank is 6 feet deep. The depth of the tank is from the bottom of the tank to the top of the support beam of the mud agitator.

6) The shaft head stabilizer of mud agitator is generally used on mud tanks 8 feet or deeper, thereby reducing the load on the bearing and the disadvantages of shaft bending.

September 28, 2021December 21, 2021

Factors that cause mud run out of Drilling Fluid Shale Shaker

Drilling Fluid Shale Shaker are often used in the drilling process, and everyone has discovered that the Shale Shaker sometimes shows the phenomenon of mud running. Then, why does the Shale Shaker show the phenomenon of running mud? From the following three factors:

1. Drilling fluid (mud):

-the mud stickiness is too high;

-the mud proportion is too large;

-the solid content is too large;

-Scattered drill cuttings.

2. Elements of shale shaker performance:

-the exciting force is small;

-the mesh number of the screen is too high;

– the effective area of the screen is small;

-the choice of vibration trajectory determines the speed of mud movement;

-if the screen is selected, the mud will be unevenly distributed on the screen surface and tend to both sides.

3. The essentials for the operation and maintenance of the drilling fluid shake shaker:

-the elevation angle of the screen box is adjusted too small;

-the direction of rotation of the vibration motor is wrong;

-the amount of slurry supply is too large and exceeds the disposal amount of the shale shaker;

-the mesh of the sieve is obstructed, so it should be washed regularly with clean water during use;

-failure to rinse the screen with clean water in time during the shutdown caused the mud to dry out;

-when the mud performance changes, the percentage of the eccentric block of the vibration motor is not adjusted accordingly.

August 24, 2021December 21, 2021

The important role of drilling fluid shale shaker in solids control equipment

The drilling fluid shale shaker is the primary processing equipment in the solids control system. It is used to separate the relatively large drilling cuttings in the mud and plays an important role in maintaining the performance of the drilling fluid. In order to ensure the production of high-quality drilling fluid shale shaker with high mud screening accuracy, low energy consumption and no dust pollution, every quality control in the production process is strictly controlled.

Outstanding performance of drilling fluid shale shaker in solids control equipment:

1. Choose a screen with large screening area, large processing capacity and good processing effect;

2. The whole screen box is heat treated, and the surface has a heavy-duty anti-corrosion coating to ensure the long service life of the shale shaker;

3. The electrical control cabinet with thermal relay overload and phase loss protection is adopted to ensure the safety of operators;

4. Adopt full-bonded ditch-edge rigid screens, which are fixed by the plate type, which makes the replacement of the screens more convenient and quick, and can replace a variety of shale shaker screens;

5. Reasonably design the height of the cofferdam of the vibrating screen logging tank to buffer and even flow the mud, reduce the direct impact on the screen, and effectively extend the service life of the screen;

6. It adopts the Italian joint venture vibration motor, which has the advantages of high vibration intensity, large screening area, adjustable screen box angle, low noise, excellent performance and high efficiency.

August 18, 2021November 29, 2021

The key points of the design of mud agitator

The mud agitator has a sturdy structure and a compact size. The aspect ratio of the mud agitator is approximately 1:1, so the center of gravity is low and the stability is good. When the impeller encounters an instantaneous impact load, it is safer.

Because the mud agitator is equipped with a simple and high-strength unipolar worm gear reducer, it runs smoothly and evenly. The ability of the worm gear to withstand shock and vibration is more than 50% higher than that of the helical gear two-stage reduction gear of the corresponding specification. When the speed ratio reaches 60:1 and 80:1, the efficiency of the turbine transmission is lower. However, the reduction ratio of the new worm gear transmission is 20:1. Practice has proved that it has extremely high efficiency and shows the advantages that other types of gear transmissions do not have.

In order to make the mud in the mud tank agitate uniformly, according to the liquid flow spectrum, it is proved that when the blade of evil theory is inclined at 60 degrees, the axial and radial flow are equal. When the liquid touches the leaf, it is forced to move down to the bottom of the pot, and then back up along the tank wall. This movement continuously mixes the mud at the top and bottom so that the mud in each part of the tank has the same concentration. When the mud is pumped into the well, it helps to eliminate operational difficulties caused by uneven light and heavy mud.

However, most mud agitators are recommended to install impeller blades with a 60 degree inclination angle. The user’s experience proves that this kind of agitator can mix very uniformly within its applicable range.

July 19, 2021July 19, 2021

Cyclones can be divided into three types in Solids Control Equipment

According to different diameters, cyclones can be divided into three types: desander, desilter and micro cyclone:

1. Desander: The cyclone with a diameter of 150~300mm is called a desander. Its ability to process drilling fluid is generally not less than 20~120mm³/h when the input pressure is 0.2Mpa. The desander in the normal state can remove about 95% of the drill cuttings larger than 74 μm and 50% of the drill cuttings larger than 44 μm. When selecting a desander, its allowable processing capacity should be 1.25 times the maximum displacement during drilling.

2. Desilter: a cyclone with a diameter of 100~150mm is called a desilter. When the input pressure is 0.25Mpa, its processing capacity is not less than 10~15m³/h. The desander under normal working condition can remove 95% of the drill cuttings larger than 44 microns and 50% of the drill cuttings larger than 15 microns. The permitted processing capacity of the desilter should be 1.25 to 1.5 times the maximum displacement during drilling.

3. Micro cyclone: a cyclone with a diameter of 50mm is called a micro cyclone. Its processing capacity is not less than 5m3/h when the input pressure is 0.25Mpa. The separated particles range from 7 to 25 microns. Mainly used for non-aggravated drilling fluids to remove ultrafine particles.

Cyclone is the key to solids control equipment mud cleaner and desander. Understanding the classification of cyclones can make a better choice of mud treatment equipment.

June 20, 2021June 20, 2021

KOSUN Pile Foundation Slurry Separation System Main Equipment

The main advantages of Pile Foundation Slurry Separation System:

1. Purify the mud and effectively control the performance index of the mud.

2. Realize mud recycling and save slurry-making materials.

3. The equipment effectively separates the soil and slag and improves the efficiency of hole making.

4. Closed loop purification of mud.

5. The double-layer screen is adopted, and the purification effect is nearly 50% or more than that of the single-layer screen.

6. Convenient, simple and reliable operation.

KOSUN Pile Foundation Slurry Separation System uses a slurry pump to pump the sludge from the mud pool into the equipment, and the equipment circulates the sludge internally: first put the sludge on the 2-layer Shale shaker, and then pass it through the cyclone desander for further purification treatment, after treatment to separate the sand and soil in the sludge, the filtered muddy water again enters the sand pump into the de-sanding cyclone for secondary screening and filtration, the waste residue continues, and the filtered water will be recycled.

There are many equipment for mechanical treatment and separation, but the most commonly used one is the decanter centrifuge. The decanter centrifuge mainly uses the principle of centrifugal separation. The separated mud cake is packaged without dripping, and it is convenient to transport and reprint. It can be used for greening and backfilling. It can be used as a material for making bricks for effective secondary use. The function of the Shale shaker is to pre-treat the muddy water and remove particles such as clumps and lumps.

May 24, 2021December 21, 2021

The composition of trenchless mud recovery system

The standard trenchless mud recovery system consists of mud recovery equipment, mud mixing equipment and mud collection tanks. Unlike the mud recovery device in the oil and gas drilling industry, trenchless drilling first discharges the mud back to the mud pit on the ground, and then uses a vertically installed submerged mud pump to transport the mud to the mud recovery system. Most drilling rigs will use a three-stage Purification system, shale shaker, sand removal, mud removal, and gradual removal of rock debris and solid waste. If there is a higher separation requirement, we will add a centrifuge to the system as a fourth-level processing equipment that can control the solid particle diameter of the slurry to 5-10 microns.

KOSUN has extensive field experience and a strong R&D and production team in the field of solids control systems such as trenchless mud recovery system. According to our country’s current municipal non-excavation technology and mud application status, combined with foreign advanced technology, the mud treatment equipment is optimized to ensure the completion of mud purification and recovery treatment while maximizing the protection of the original mud performance, saving construction costs, improving construction progress, and reducing Construction resistance and risk to achieve the best treatment effect.

March 28, 2021March 28, 2021

Shale shaker, Rotary separator and Centrifuge in shield slurry separation system

In the construction process of the shield machine, the separation of slurry is an indispensable process. The separation efficiency also affects the tunneling efficiency of the shield machine. General slurry separation equipment includes shale shaker, rotary separators, centrifuges, filter presses, etc.

Centrifuge: The commonly used centrifuge is composed of two coaxial parts rotating around a static chamber. It is very effective for purifying bentonite mud, only keeping 6μm particles in the mud. Centrifuge is one of the very important solids control equipment.

Shale shaker: For the separation of materials of different particle sizes and gradations, the mud Shale shaker is the most basic solids control equipment. The Shale shaker is composed of one or more sieve plates, and the sieve hole of each sieve plate is gradually reduced. Shale shaker are generally used for sieving coarse materials, with holes as small as 60μm.

Rotary separator: The rotary separator is composed of a fixed cone. Its feed inlet is close to its shell. There is an upper overflow outlet at the top of the cone and a lower overflow outlet at the bottom. Larger speed is pumped into the rotating cone, causing it to produce a vortex, and the slurry enters the spiral in the cone. Large-sized and heavy-weight particles are separated by centrifugation at a certain speed, concentrated on the inner wall of the cone, and finally discharged through the bottom outlet; fine particles, retained in the muddy water, are discharged from the upper overflow through the spiral body. Rotary separators are widely used in surface separation stations. They can separate sand and sludge from waste mud water, and can even effectively separate 10μm particles.

February 23, 2021February 23, 2021

Drilling Fluid Shale Shaker Outstanding Performance in Solids Control Equipment

The outstanding performance of the drilling fluid Shale Shaker in the solids control equipment is far more than these. You must operate correctly according to the instructions so that its performance can be fully utilized.

1. Choose a screen with a large screening area, large processing capacity and good processing effect;

2. The whole screen box is heat treated with heavy anti-corrosion coating on the surface to ensure the long service life of the Shale Shaker;

3. The electrical control cabinet with thermal relay overload and phase loss protection is adopted to ensure the safety of operators;

4. Adopt full-bonded ditch-edge rigid screens, which are fixed by the plate type, which makes the screen replacement more convenient and quick, and can replace a variety of Shale Shaker;

5. Reasonably design the height of the cofferdam of the Shale Shaker mud logging tank to buffer and even flow the mud, reduce the direct impact on the screen, and effectively extend the service life of the screen;

6. It adopts the Italian joint venture Ouli vibration motor, which has the advantages of high vibration intensity, large screening area, adjustable screen box angle, low noise, excellent performance and high efficiency.

KOSUN draws on the advanced design experience and manufacturing technology of Drilling Fluid Shale Shaker at home and abroad to optimize the design structure of the Shale Shaker to produce a Shale Shaker that can quickly remove harmful solids in the mud and ensure efficient recovery of drilling fluid. The drilling fluid Shale Shaker is the primary processing equipment in the solids control system. It is used to separate relatively large drilling cuttings in the mud and plays an important role in maintaining the performance of the drilling fluid. In order to ensure the production of high-quality drilling fluid Shale Shaker with high mud screening accuracy, low energy consumption and no dust pollution, every quality control in the production process is strictly controlled.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com