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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

Email: sales2@adkosun.com

Contact person: Jinbo Zheng

Contact person: Jinbo Zheng

http://www.kosun.com

http://www.kosuneco.com

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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.

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Why more and more clients choose to use KOSUN’s linear motion shale shaker?

Kosun’s linear motion shale shaker is a new and efficient screening equipment, widely used in mining, coal, smelting, building materials, refractory materials, light industry, chemical industry and other industries.Linear motion shale shaker is stable and reliable, low consumption, low noise, long life, vibration stability, screening efficiency.The linear motion shale shaker uses the vibration motor to excite the vibration type, causes the material to be tossed on the screen net, at the same time makes the straight line movement in front, the material enters the material inlet of the screening machine evenly from the feeding machine.The upper and lower sieves of various specifications are produced through a multilayer screen,from respective outlet eduction.With low energy consumption, high output, simple structure, easy maintenance, closed structure, no dust overflow, automatic discharge, more suitable for assembly line operation.

The linear motion shale shaker is driven by a double vibration motor. When two vibration motors are synchronous and counter-rotating, the exciting force generated by the eccentric block cancels each other in the direction parallel to the motor axis and overlapped as a resultant force in the direction perpendicular to the motor axis. Therefore, the motion trajectory of the screen machine is a straight line.Its two motor shafts have an inclination relative to the screen surface. Under the combined force of excitation force and the material’s gravity force, the material will be thrown up and jump forward to make a straight movement on the screen surface, so as to achieve the purpose of screening and classifying the material.Can be used in the pipeline to achieve automation.It has the characteristics of low energy consumption, high efficiency, simple structure, easy maintenance and completely closed structure without dust overflow.The highest mesh number is 325 mesh, which can screen out 7 materials with different particle size.

Features of KOSUN linear vibrating screen:

1. The feeding box is available in skid type and box type, which can be selected;

2. Can handle drilling fluid with large specific and large displacement;

3. The screen machine is exquisitely designed and easy to assemble. One person can operate the screen machine;

4. The screen Angle adjustment device, adjustment range – 1 ° ~ 5 °;

5. Excitation strength of high G force (which needs to be adjusted according to the working condition);

6. Fast cuttings conveying speed and high processing capacity;

7. Compared with other relevant brand manufacturers, it has larger screening area and high efficiency in processing;

8. The parent network fully supports the fine mesh, so the fine mesh can be used independently for a long service life and reduce the use of fine mesh consumables.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Email: sales2@adkosun.com

Contact person: Jinbo Zheng

Contact person: Jinbo Zheng

http://www.kosun.com

http://www.kosuneco.com

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The reason for choosing Kosun’s horizontal spiral discharge sedimentation centrifuge.

Kosun series horizontal spiral discharge sedimentation centrifuge is a series of centrifuge products developed and improved by our company on the basis of introducing and digesting foreign advanced technology. It is mainly used in the solid-liquid separation field of municipal wastewater, industrial wastewater, chemical industry, food, pharmaceutical, non-metallic ore and similar production processes.

Horizontal centrifuge uses the centrifugal force generated by the high-speed rotating drum to intercept the solid particles in the suspension liquid in the drum and discharge them out of the machine automatically under the action of the force. At the same time, under the action of the centrifugal force, the liquid in the suspension liquid is thrown out through the filtration medium and the hole of the drum, so as to achieve the purpose of solid-liquid separation and filtration.

The main features of Kosun DC series horizontal spiral discharge sedimentation centrifuge：

1.The perfect combination of separation techniques and creativity.Using high quality special as the main components of contact with the material of stainless steel material, special site with cemented carbide parts and ceramic parts, improve the corrosion resistance and wear resistance of the equipment , integrate all kinds of innovative features, higher separation factors, more clear area, optimization of the feed system, driving system and can adjust the parameters in the process of equipment operation control, etc.;

2.It is applied in various fields. Based on the principle of design and manufacturing with minimum resource consumption, various specially designed centrifuges have been widely used in the fields of environmental protection and industrial production；

3.The perfect service system.Kosun provides high quality products and services to customers in all industries, not only high quality products, but more importantly, we sincerely provide customers with a full set of customized solutions with our rich experience, from the design, selection and installation of horizontal screw centrifuges to the construction of a complete set of equipment in special fields.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Email: sales2@adkosun.com

Contact person: Jinbo Zheng

Contact person: Jinbo Zheng

http://www.kosun.com

http://www.kosuneco.com

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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

Online consulting:

http://www.kosun.com

http://www.kosuneco.com

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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.

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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.

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.

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.

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;

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..

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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.

cooperative partner

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.

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Kosun Environmental Engineering oil sludge treatment

Kosun Environmental Engineering oil sludge treatment scheme 1:Air flotation scheme for oil sludge recovery and separation system.
The application of the air flotation scheme in the oil sludge recovery and separation system can effectively realize the separation of oil, water and mud, and recover the reusable oil products in the sludge. At the same time, targeted chemical agents are used to reduce the oil content of the discharged sludge, with the lowest oil content of 0.5%, meeting the environmental protection emission standard.

Kosun Environmental Engineering oil sludge treatment scheme 2:Skid-mounted oil sludge treatment system.
On the basis of introducing advanced separation technology from Europe and combining with domestic military manufacturing team, Kosun Environmental Engineering is specialized in manufacturing high-speed horizontal screw centrifuges.With the development concept of combining independent research and introduction, the company strives to make a breakthrough in the application function of centrifuge physics, so as to solve the secondary pollution problem caused by chemical treatment.Company research and development of special oil sludge, dirty oil, aging oil two phase and three phase horizontal screw centrifuge won the unprecedented good results in production practice. The various indicators are better than national standards, with a core of the special oil sludge horizontal screw centrifuge treatment system is fully operational, it will reduce the labor intensity of users, reduce the production cost of the using enterprise, at the same time can also provide cost-effective manufacturing in China for the international market.

Kosun Environmental Engineering oil sludge treatment scheme 3:Analytical processing technology of electric radiation and heat.
Kosun Environmental Engineering analytical processing technology of electric radiation and heat is mainly composed of “sludge pretreatment + analytical processing of electric radiation and heat + water treatment” and other processes.In order to meet the requirements of “reduction” of the factory, this scheme mainly realizes reduction of oily sludge through the analytical processing technology of electric radition and heat, which make the liquid phase reduction rate over 94%.

Application range of Kosun Environmental Engineering oil siudge treatment：
1.Drilling mud
2.Field oil
3.Oil field drilling oil base mud deoiling treatment
4.Waste machinery lubricating oil and emuision oil treatment
5.Fracturing fluid and flowback effluent
6.Complex mixed oil sludge from industrial oil sludge garbage pit
7.Pelagic tanker bilge oil sludge
8.Oil refinery water treatment oily scum and oily bottom sludge and so on
9.Oil sludge at tank bottom of oil field union station
10.Sediment isolation layer in natural sedimentation and dehydration of oil field union station
11.Slag containing sludge from ship fuel oil and lubricating oil separator
12.Coal tar is extracted from coal chemical industry
13.Aging oil of oil field union station
14.Oil-bearing scum produced during water treatment in oil field
15.Oily sludge treatment in oil chemical plants
16.Other Mineral-bearing oil sludge sand treatment

Tel.: +86 29 87304914

Email: sales2@adkosun.com

Contact person: Lily Wang

Online consulting:

http://www.kosun.com

http://www.kosuneco.com

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Analysis of Resource Utilization of Sludge

KOSUN is a professional company that provides solid-liquid separation products and integrated solutions to solid waste disposal in the fields of energy conservation and environment protection, and focuses on development and services of complete technologies and equipment in sludge reduction, harmlessness and resource utilization. The sludge treated by KOSUN vertical centrifuge can be used as various resources in the following fields:

1. Agricultural resource utilization of sludge
If the sludge is used for agricultural purposes, it has the advantages of low operating cost, low energy consumption and low investment, and the organic part in sludge can be converted into the modifier component in the soil, so this utilization way is taken as the most promising disposal method.

2. Building materials utilization of sludge

2.1. Cementitious materials utilization of sludge
For sludge, it often contains more ash, especially in the treatment of sludge in wastewater by coagulation method, which contains a lot of Fe and Al components, and can be used as additives of building materials.

2.2. Sludge ceramsite
For lightweight ceramsite, it is usually used as a flower covering material or as a concrete aggregate and roadbed.

2.3. Sludge brick
Relevant researches show that sewer sludge can be used to make ecological bricks used in construction. This kind of brick is actually made by the following process: 10% sludge is mixed into the clay and then fired at 900°C, which can optimize the effect.

3. Animal feed utilization of sludge

Sludge contains lots of corresponding substances with many useful values, such as ash content ratio of 26.1% to 46.3%, fatty acids of 0 to 3.5%, and crude protein of 28.4% to 40.8%. Therefore, it can be treated as feed protein.

4. Sludge as fuel

The sludge itself is rich in organic matter. After low-temperature carbonization of sludge, the calorific value is equivalent to lignite, so the sludge can be used as fuel with a low calorific value.

If the sludge is not treated and is directly discharged into the environment, it will be seriously harmful to the surrounding environment. After the sludge is treated harmlessly, stabilized and reduced in volume, it can be used as a valuable resource in many fields.