The MG series mud gun is designed, produced and manufactured by KOSUN company.

The MG series mud gun is designed, produced and manufactured by KOSUN company for the fixed control mud tank of different drilling rigs, which is mainly used as a special tool for controlling the precipitation in drilling mud solid control system. The equipment is divided into three types: low pressure, heavy pressure and high pressure. KOSUN’s MG series mud gun can be used in the mud tank for high-pressure injection mixing, to prevent the corner of the mud tank and the suction of the pump solid phase precipitation, also can be used to transport mud between the bin.

Advantages and features of the mud gun:

1. Structured and reasonable, capable of supporting the use of pumps with different pressures;

2. The equipment has good sealing performance and can be sprayed with a replaceable wear-resistant nozzle, which can clean a large area of the mud tank;

3. Choose well-known brands for the accessories, which greatly improves the service performance and life of the equipment;

4. The whole equipment has gone through acid pickling, assisted plating, hot dip zinc, passivation and fine grinding to improve the anti-corrosion performance of the equipment;

5. The MG series mud gun can rotate 360° in all directions;

6. Reasonable structure, flexible operation and easy to use;

7. Used with high-power shear pump or sand pump, mainly to prevent mud precipitation in drilling mud tank.

KOSUN belongs to high-end equipment manufacturing industry. Through years of continuous product development and improvement, it has grown into an intensive environmental protection equipment manufacturing enterprise. The company is committed to resource conservation and environmental protection, based on the manufacture of special separation machinery equipment for environmental protection, to provide solid waste treatment related products and services, in construction machinery, industrial sludge treatment, river and lake sludge treatment and disposal, soil remediation, tailings comprehensive utilization and other six application fields.

KOSUN desander is a device for separating impurities from the flow of gas.

Xi ‘an KOSUN is a research, development, production and sales company of desander, drilling fluid desander, desander cleaner, hydrocyclone desander, which is applied to the mud purification treatment of oil drilling solid control, trenchless, pipe jack construction and other fields.

A desander is a device for separating impurities from the flow of gas, water or waste water. The setting of desander can also protect mechanical equipment from wear and tear, reduce the deposition of heavy objects in pipelines and grooves, and reduce the number of cleaning times required due to the large accumulation of miscellaneous particles in the digester. It is mainly used for water quality treatment and control of raw water and supplementary water, such as: oil field drilling, trenchless horizontal directional crossing, mud purification and swirling separation of coal-bed methane drilling, sand removal of river water and well water, coal washing water, industrial mineral processing, solid-liquid separation, liquid degassing and separation of non-miscible liquid, etc. In natural gas production, desanders are also installed in wellheads to prevent formation sand from blocking pipelines or equipment.

Features and advantages of the desander:

1. KOSUN desander cleaner is a two-machine solid control device for drilling mud processing, which can separate solid particles between 45 and 74 microns;

2. The desander is made of polyurethane or high chromium cast iron with long service life;

3. Clip-on type, easy to maintain;

4. Compact design, small space;

5. According to different treatment capacity, 1, 2 or 3 10″ or 12″ cyclone can be flexibly selected;

6. Fast and flexible connection during user assembly.

Maintenance of centrifugal pump

There are so many methods for you to make sure a longer service life of centrifugal pump:

1. Before and during operation, the insulation resistance of the motors must be checked regularly, and the grounding condition should be checked to see if the cable skin is broken;

2. Check whether the centrifugal pump line and the joint are loose. Turn the centrifugal pump by hand, check whether the centrifugal pump is flexible;

3. Add bearing lubricating oil into the bearing body. Observe the oil level at the center line of the oil mark;

4. Try to control the flow rate and head of the centrifugal pump within the scope indicated on the label, so as to ensure the operation of the centrifugal pump at the highest efficiency point, in order to obtain the maximum energy saving effect;

5. During the operation of the centrifugal pump, the bearing temperature shall not exceed the ambient temperature of 35℃, and the maximum temperature shall not exceed 80℃;

6. If abnormal sound is found in the centrifugal pump, stop immediately to check the reason;

7. When the centrifugal pump is to stop using, first close the gate valve and pressure gauge, and then stop the motor;

8. The lubricating oil of the centrifugal pump shall be changed for 100 hours within the first month of operation. After that, the oil shall be changed every 500 hours;

9. Often adjust the packing gland to ensure normal drip leakage in the packing room (it is advisable to make drip leakage);

10. Check the wear condition of the shaft sleeve regularly, and replace it in time after big wear. Horizontal centrifugal pump to check the pump coupling regularly, the unit overhaul is generally one year;

11. When the centrifugal pump is in use in the cold winter, after stopping the pump, unscrew the waterproof screw at the bottom of the pump body to clean the medium. Prevent frostbite;

12. When the centrifugal pump is out of use for a long time, all the pumps should be disassembled and wiped dry. The rotating parts and joints should be coated with grease for proper protection.;

13. The spare pump should be replaced regularly to reduce the chance of dampness of motor stator windings.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914


Contact person: Jinbo Zheng

Contact person: Jinbo Zheng

The SP shear pump produced by KOSUN can quickly prepare high-performance slurry.

The SP shear pump produced by KOSUN can quickly prepare high-performance slurry, greatly shorten the preparation time of slurry, and improve the economic benefits of drilling.

Shear pump is a machine specially designed for shearing polymers and clays and has been used in the field and proved effective in theory. In the drilling fluid system, polymer (or clay) should be sufficiently in advance after shearing, again into the drilling fluid system, in order to give full play to its functions, improving drilling fluid performance, if there is no sufficient shear, polymer in the first cycle could jam vibrating screen mesh, lose a massive amount of polymer, to increase the drilling cost, and may also make the large size of solid phased particles in drilling fluid hard and difficult to get rid of; In drilling fluids, the polymer produces many “fish-eyes” due to insufficient shear. These “fish eyes” can harm the formation, reducing permeability and reducing oil and gas production.

The shear pump provides a high degree of shear for rapid hydration of polymers (or clays) and resolves prominent problems with poorly hydrated polymers (or clays) in drilling fluids. At the same time, the use of shear pump can make the polymer injection amount reduced by more than 15%, the dosage of bentonite reduced by more than 30%, and improve the mud cake and fluid flow loss, reduce drilling fluid shear rate, improve the gel strength, has reached the advanced level of similar foreign products, the shaft seal structure is more reliable, excellent performance, the use of maintenance more convenient.

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

Contact person: Jinbo Zheng

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

Contact person: Jinbo Zheng

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


Contact person: Jinbo Zheng

Online consulting:

Kosun’s drilling mud treatment equipment: mud tank

The tank surface and the corridor of the mud tank are made of non-slip steel plate and non-slip strip net plate, and the tank surface railings are made of square steel pipe, with barrier-free foldable structure and solid insertion.The tank surface of the mud tank circulation system is equipped with clear water pipeline for cleaning the tank surface and equipment.The upper tank ladder uses channel steel as the main body, anti-skid strip net plate as the pedal, and both sides of the guardrail are provided with insurance hooks.Oil drilling mud tank is equipped with standard sand control and rainproof shed, and the tank is equipped with heat preservation pipeline.

As a mud carrier, the mud tank is an indispensable part of the mud circulation system, which can be used to complete mud weighting, mixing, solid-liquid separation, degassing and other processes.The mud tank carries mud circulation from the wellhead to the mud pump, and solids in the mud are separated step by step through the corresponding solid control equipment on the tank, and the mud is weighted and mixed with the system for deployment, so as to meet the drilling process requirements;The degassing equipment on the mud tank can remove the harmful gas in the mud, so as to ensure the environmental requirements and mud specific gravity of the work site;Mud tank adopts electrical centralized control.In the polar cold region, the tank is equipped with heating system and thermal insulation system.

Generally, the supporting equipment on the mud tank includes: drilling fluid vibrating screen, vacuum degasser, desander, desilter, integrated desander and desilter, liquid and gas separator, stirrer, sand pump, shear pump, centrifuge, electronic ignition device, mixing funnel, jet mixing device, mud gun, etc.

Mud tank is an indispensable equipment in the solid control system. Please pay attention when using it. Do not let the mud precipitate in the mud tank adhere to the tank wall.

Features of Kosun’s drilling mud tank:

1. The selected materials are all international materials, strong and durable;

2. The design of the heating and heat preservation system, can satisfy the using demand of the extremely cold area – 60 ℃;

3. The drilling mud tank base is made of skid-type structure, which can be dragged on site for convenient installation;

4. The positioning rod is connected between the tank and the tank, and the positioning is simple;

5. The built-in pipe manifold facilitates transportation and reduces the number of disassembly.

Our desander can meet all your requirements for desander.

Kosun Environmental Engineering has solid and liquid separation core technology, driven by technology equipment manufacturing and engineering services, the current business has been involved in engineering machinery, industrial sludge treatment, river and lake sludge disposal, urban sludge treatment, soil remediation and tailings comprehensive utilization of six fields.With “Black Rhino” brand as registered trademark, the company has dozens of separation machinery related technology, won the shaanxi province famous trademark, xi ‘an famous brand products, small giant technology enterprises, xi ‘an industry leader and other honorary titles.

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Kosun DS series desander is a two stage solid control equipment for drilling slurry treatment.Commonly used hydrocyclones with diameters of 12″ and 10″ are used to separate solid particles with particle sizes of 47-76µm in drilling mud.

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Kosun DS series sand removal cleaner is a two-stage solid control equipment for drilling mud treatment. It is used to separate the solid particles with particle size of 47-76µm in drilling slurry.Application fields:large-scale oil drilling rig supporting, large-scale trenchless drilling rig supporting,shield engineering supporting, river dredging project supporting, etc.

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Features of the desander cleaner:

1. Separate solid particles with particle size of 47-76µm in drilling mud;

2. Simple operation and maintenance, compact structure, small space occupied;Paragraph

3. desanders with different specifications and handling capacities can be produced according to customers’ requirements;

4. The material can be polyurethane, high-chromium iron or ceramic wear-resistant materials;

5. The number and material of customized hydrocyclone can be selected..

Kosun KDS-500 Shield Slurry Treatment System

Since the introduction of slurry balance shield, the slurry separation and treatment system and equipment have appeared.During the construction of slurry shield, slurry treatment is one of the important factors affecting the normal tunneling of the shield, and directly affects the construction schedule, construction cost and environmental protection.The application of slurry shield, along with the tunnel construction, is gradually developed from the city edge to the city center.Due to the limitation of the construction site, the mud water treatment equipment must cover a small area and have a high treatment rate, so an efficient and integrated slurry treatment equipment has become the first choice of the owner and the construction unit.

Xi’an Kosun Environmental Engineering co.,LTD,It is a professional company providing integrated solutions of solid waste treatment in the field of energy conservation and environmental protection, focusing on the development and service of complete sets of technologies and equipment such as sludge reduction and resource utilization.

Kosun Environmental Engineering co., ltd. helps customers with sludge reduction and disposal services, including: general contracting of sludge treatment, sludge treatment mobile site services, sludge treatment package solutions.

Kosun KDS-500 shield slurry treatment system is a modular design system.The system is designed for mud purification in medium sized slurry balance shield construction projects.The KDS-500 system is composed of a coarse vibrating screen module and two sets of sand removal modules. The coarse vibrating screen module is equipped with a coarse screen for removing large particles, and the sand removal module is equipped with a desander hydrocyclone and a fine vibrating screen.

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The slurry falls into the collecting box through the coarse vibrating screen, and then is separated and transported to two sets of sand removal modules through two connecting pipes. The sand removal module is equipped with a desander hydrocyclone, which can remove the sand in the slurry.After two levels of treatment, the effect of repeated circulation can be achieved.