Author: drilling waste management

Contact person: Jinbo Zheng

06/12/201906/12/2019

Drilling mud cleaner is the second and third level solid control equipment of drilling mud.

KOSUN production of MD series drilling mud cleaner, is the secondary and third level drilling mud purification system of solids control equipment used to separate the vibration screen processed of smaller particles contained in mud solid phase, so that the mud into the subsequent separation equipment, MD series mud cleaner can be used alone, also can use its underflow vibrating screen as primary solids control parallel backup device of vibrating screen.

Drilling mud cleaner is the second and third level solid control equipment of drilling mud. It is a combination of desander hydrocyclone, desilter hydrocyclone and bottom flow vibration screen. The mud cleaner is compact in structure, small in space and powerful in function. It is an ideal and efficient cleaning equipment for the second and third stage solid phase control of drilling mud.

Features of KOSUN drilling mud cleaner:

1. The cleaner is compact in structure, small in space and powerful in function;

2. The number and materials of customized hydrocyclone are available; Its material can be made of polyurethane, high chromium cast iron or ceramic and other wear-resistant materials.

3. The clamshell desilting hydrocyclone is equipped with stainless steel ball valve for easy maintenance;

4. The vibration motor is Martain motor, reliable in quality;

5. Composite screen, longer service life;

6. Wedge design for convenient vibrating screen replacement;

7. Mechanical adjustment of screen box angle can be realized in the work, which is convenient to operate.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Contact person: Jinbo Zheng

06/10/201906/10/2019

KOSUN Vacuum degasser is a kind of special degasser for treating gas-immersed drilling fluid.

KOSUN Vacuum degasser is a kind of special degasser for treating gas-immersed drilling fluid, and its degasser rate is up to 95%, which is suitable for all kinds of oil drilling solid control system. It plays an important role in restoring mud proportion, stabilizing mud viscosity and reducing drilling cost. At the same time, it can also be used as high power agitator.

KOSUN vacuum degasser used vacuum suction effect, cause negative pressure zone in a vacuum tank, mud under the action of atmospheric pressure, through the suction pipe into the hollow shaft of rotor, again by the window around the hollow shaft, the jet shaped into the tank wall, round due to the collision and separation effect, make the separation of drilling fluid into thin layer, immersed in the mud bubbles, gas evolution, through hollow pump suction and the separation of gas water separator, the exhaust pipe line to the safety of gas by the separator, the mud by the impeller discharge outside the tank. Since the main motor starts first and the impeller connected to the motor rotates at high speed, the mud can only enter the tank from the suction pipe, but not from the drainage pipe.

Operation rules of KOSUN vacuum degasser:

1. The installation of vacuum degasser requires smooth connection and reliable fastening, and the exhaust outlet is connected to the safe position outside the wellsite according to the well control requirements;

2. Before the vacuum degasser starts, the end of the drain pipe and suction pipe should be immersed in the mud at the same time, otherwise it will not work normally;

3. After the vacuum degasser is started, check the rotation direction of the motor, which should be consistent with the direction indicated by the arrow on the tank and pump. The water in the pump and the air-water separator must be drained;

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Contact person: Jinbo Zheng

05/30/201905/30/2019

KOSUN’s production of drilling mud solid control system is well used in CNOOC project.

KOSUN’s production of drilling mud solid control system consists of linear vibrating screen, vacuum degasser, desander, desilter, horizontal spiral sedimentation centrifuge and solids control equipment such as mud tank, the functions of component integration on the base of a whole, the production, the assembly is done in the factory, has convenient installation, easy to migrate, cover an area of an area small, etc.

Recently, a complete set of solid control system produced by KOSUN has arrived at the CNOOC offshore drilling artificial island project site and put into use. This set of fixed control system is applied to offshore drilling platform. KOSUN strictly control the production quality, to ensure that products meet quality standards, process can completely satisfy the level 5 of drilling fluid solids control (screening – degassing – except sand silt – centrifugal), shipment of the equipment at the same time, KOSUN’s solid control system technical service team to the scene, to be responsible for guiding system box installation debugging, and the construction of personnel training for equipment operation and maintenance.

The oil solid control system is used to separate and treat cuttings, mud and sand particles in drilling fluid, maintain drilling fluid performance and store circulating drilling fluid.It is equipped with a weighted mixing device, a perfusion device and a chemical injection device.To improve the physical and chemical properties of drilling fluids to meet drilling requirements.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Contact person: Jinbo Zheng

05/24/201907/20/2020

KOSUN’s screw conveyor is widely used in various industries.

KOSUN’s screw conveyor is widely used in various industries, such as building materials, chemical industry, electric power, metallurgy, coal mine coal, food and other industries, applicable to horizontal or oblique conveying powder, granulated and small lump materials, such as coal, ash, slag, cement, food, etc., the material temperature is less than 200 ℃.Screw conveyor does not transport perishable, viscous, easy to agglomerate materials.In the concrete mixing station, the screw conveyer’s function has obtained the biggest embodiment.

When the screw shaft rotates, the material can only move forward along the bottom of the conveyor under the push of the blade due to the gravity and friction generated by the wall of the tank, which is like the translational movement of the nut that cannot be rotated along the rotating screw rod.The movement of materials in the intermediate bearing depends on the thrust of materials moving forward from behind.So the transport of materials in the conveyor is a complete slip movement.In order to make the screw shaft in a favorable tension state, the drive device and discharge port are generally placed at the same end of the conveyor, and the feeding port is placed near the tail of the other end as far as possible.The rotating screw blade pushes the material forward for conveying, and the force that prevents the material from rotating together with the screw conveyor blade is the weight of the material itself and the friction resistance of the screw conveyor housing on the material.The profile of the blade can be divided into solid profile, belt profile and blade profile according to different materials.The screw shaft of the screw conveyor has thrust bearing at the end of the movement direction of the material to counter the axial force of the screw with the material. When the length is longer, the intermediate suspension bearing should be added.

Screw conveyor in the use of the process, must pay attention to the daily maintenance, so as to ensure maximum production and efficiency, but also make the service life of the equipment extended.

1. Lubricating oil should be added to the transmission parts such as bearings, gears and chains on a regular basis;

2. After the screw conveyor is out of service, the wear condition of the screw blade shall be checked, and if the wear is serious, it shall be repaired by welding;

3. The conveying quantity shall not be overloaded, otherwise the material cannot be discharged, causing the screw shaft to bend and the box to swell and damage;

4. When the conveying medium has a high degree of mobility, pay attention to whether the expansion and contraction of the box body is free and there is no stuck place;

5. When the conveyor is in operation and the noise is harsh, the cover shall be opened for inspection and troubleshooting.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Contact person: Jinbo Zheng

05/17/201905/17/2019

Kosun’s vacuum degasser is a special equipment used to process gas cut drilling fluid.

Kosun’s vacuum degasser is a special equipment used to process gas cut drilling fluid.It is suitable for all kinds of supporting equipment and plays an important role in restoring mud weight, stabilizing mud viscosity and reducing drilling cost.At the same time, it can also be used as a high-power agitator.

Vacuum degasser used vacuum pump suction effect, cause negative pressure zone in a vacuum tank, mud under the action of atmospheric pressure, through the suction pipe into the hollow shaft of rotor, again by the window around the hollow shaft, the jet shaped into the tank wall, due to the collision and separating the role of the wheel, to separate the drilling fluid into a thin layer of mud invasion of bubble, gas evolution, through vacuum pump suction and the separation of gas water separator, the exhaust pipe line to the safety of gas by the separator, the mud by the impeller discharge outside the tank.Since the main motor is started first, the impeller connected to the motor is in a state of high-speed rotation, so the mud can only enter the tank from the suction pipe, not from the discharge pipe.

Features and advantages of corun’s vacuum degasser in drilling operation:

1.Self-priming devices do not require centrifugal pumps to attack drilling mud

2.Eliminates corrosion and reduces repair and maintenance costs

3.Compact design and small footprint

4.The suction pipe is inserted into the mud tank and can be used as a high-power agitator under the condition of no gas cut in the mud

5.Mud through the window of the rotor to tell the four walls, mud bubbles broken thoroughly, degassing effect is good.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Contact person: Jinbo Zheng

05/13/201905/13/2019

How Kosun’s vibrating screen works

When the vibrating screen works, the synchronous reverse rotation of the two motors makes the exciter generate reverse excitation force, forcing the screen body to drive the screen to do longitudinal movement, so that the materials on it are subject to excitation force and periodically throw a range forward, so as to complete the material screening operation.It is suitable for the screening of sand and stone in quarry, and can also be used for product classification in coal dressing, mineral dressing, building materials, electric power and chemical industry.

The working part of the vibrating screen is fixed, the material slides along the working face to screen the material.Fixed mesh screen is one of the most widely used in mineral processing plants. It is usually used for pre-screening before coarse crushing or medium-crushing.It has simple structure and convenient manufacture.Without power consumption, the ore can be directly discharged to the screen surface.The main disadvantages are low productivity, screening efficiency, generally only 50-60%.

Vibration screen working face is composed of a transverse arrangement of a rolling shaft which has a plate, fine particle material from the roller or the gap between the plate through.Large blocks of material are driven by rollers to a section and discharged from the end.This screen is seldom used in concentrating mills.Vibratory screen is cylinder-shaped, the whole screen around the axis of the cylinder mixed rotation, the axis in general is installed at a small Angle.The material is fed from one section of the cylinder, the fine grade material passes through the screen hole on the cylinder surface, and the coarse material is discharged from the other end of the cylinder.The rotating speed of the cylinder is very low, the work is stable and the power balance is good.But its screen hole is easy to block, screening efficiency is low, small working area, low productivity.Concentrating mills rarely use it as a screening device.The collective vibrating screen is a plane shaking or vibrating.It can be divided into linear motion, circular motion, elliptical motion and complex motion.shaking and vibrating screens fall into this category.When the vibrating screen is working, the two motors are placed in opposite positions synchronously so that the exciter generates reverse excitation force, forcing the screen body to drive the screen to do longitudinal movement, so that the materials on it are subject to excitation force and periodically throw a range forward, thus completing the material screening operation.Shaking screen is a crank linkage as the transmission parts.The motor rotates the eccentric shaft through the belt and pulley, and makes the body reciprocate in a certain direction by connecting rod.

The movement direction of the body is perpendicular to the center line of the support rod or suspension rod. Due to the swinging movement of the body, the materials on the screen surface move towards the discharging end at a certain speed, and the materials are screened at the same time.Compared with the above kinds of shaker, the productivity and screening efficiency of shaker are higher.Its disadvantage is poor dynamic balance.It is now rarely used in concentrating mills and it is replaced by more reasonably structured shakers.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Email: sales2@adkosun.com

Contact person: Jinbo Zheng

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