Industry News

10/30/202210/30/2022

What are the manufacturers of shield muck treatment system in China?

What are the manufacturers of shield muck treatment system in China?

Shield subway tunnel construction process, the waste residue produced by a large amount of waste residue in brings to the urban environment pollution threat, in the city subway tunnel soil balance shield construction, shield tunneling process, in order to ensure the advance smoothly, through the soil of shield machine, add water bentonite, foaming agent, polymer additives, mixing and makes the waste residue have better flow plasticity, achieve balance Graffiti has maintained balance effect.

Due to the characteristics of high mud content and high water content, the slag produced by shield tunneling will inevitably spill and pollute the environment in the process of transportation. In order to timely clean up the soil, a large amount of clean water needs to be consumed when shipping out, and the construction will be blocked because the muck cannot be shipped out in time.

Recently, the shield dregs treatment system produced by KOSUN has been successfully put into operation in Guangzhou Metro project of China and achieved results. The belt conveyor equipment is used to transport the freshly dug dregs from the depth of the tunnel to the feed hopper for separating the ground dregs, and finally separates the coarse and fine sand, realizing the benefit of resource utilization.

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

03/28/202203/28/2022

A set of Sedimentation Tank Slime Treatment System Send to Coal Mine Treatment Sites

Recently, KOSUN successfully supplied a set of processing system for efficient cleaning of coal slime and slag for Shaanxi Coal Group, and sent it to the customer’s project site to complete the installation and commissioning. This system adopts a modular design concept, which is divided into a sedimentation tank cleaning and dehydration transfer module and a coal slag dehydration transfer module, which can be flexibly increased or decreased function module according to site needs.

KOSUN sedimentation tank slime treatment system effectively solves the problems of high solid content in the clear liquid in the sedimentation tank, difficult sewage treatment and high cost; cumbersome coal slime excavation and stacking process in the sedimentation tank, and time-consuming and laborious processing. The solid-phase moisture content after being treated by the KOSUN sedimentation tank slime system is less than 50%, which reduces the stacking volume and floor area, ensures that ordinary muck trucks do not cause secondary pollution when they are transported out, and reduces the amount of liquid entering the sewage treatment station. The total amount and solid content of the phase can be reduced, and the cost of liquid phase treatment can be reduced, not only can the coal slime originally discharged as waste be recycled, but also meet the requirements of national environmental protection and industry standards, and achieve the dual effect of improving economic benefits and environmental protection.

KOSUN has always provided you with solid-liquid separation solutions in the solid waste treatment industry. Customers are welcome to call for consultation!

02/07/202202/07/2022

Why is oil sludge sand classified as hazardous waste?

The structural characteristics of oil mud sand in the oil field are particularly complex and diverse, making it very difficult to handle. It is generally composed of structures such as oil-in-water, water-in-oil and suspended solid impurities, and is an extremely stable mixture. The oil components in the sludge sand mainly contain saturated hydrocarbons and aromatic hydrocarbons, and the content of colloid and bitumen is less.

The composition of oil mud sand depends on the geological conditions of the major oil fields, the production technology and the process flow, and is also directly related to the variety of chemicals added, the quality of sewage, and sewage channels. Generally, the moisture content and salt content The amount of ingredients is high. Most of the sludge sands contain harmful substances such as arsenic, mercury, and salts. The characteristics of oily mud sand are mainly high crude oil content, some of which have oil content as high as 50%, high cohesion, and the main binding component of oily mud sand is also crude oil. Oil mud sand dispersed in water will be naturally divided into crude oil floating on the water surface and sand particles sinking to the bottom due to gravity, which mainly depends on the larger component density of oil mud sand. In water, the density of crude oil is lower than that of water.

There is also a big difference in the properties of the old oily sludge sand and the newly produced oily mud sand. The old oily mud sand has a long storage time, so there will be light components diffused during the long-term storage process, while some crude oil is due to the separation of seepage. The physical and chemical reactions of oil sludge will greatly change the properties of oil sludge, and therefore will slowly transform into a mixture of heavy oil, asphaltene, sand and soil.

Based on the above-mentioned structural characteristics, components and properties of oily sludge sand in the oil field, it is explained that the harmful components of oily sludge sand in the oil field are more and more complex, especially in the process of oil production, the addition of various chemicals will increase the toxic components of the oil sludge. These toxic components not only increase the difficulty of separation and purification of the oil sludge, but also more seriously, if the oil is directly discharged , Because the toxic substances are seriously exceeding the standard, the direct and arbitrary discharge will cause serious environmental pollution.

12/21/202112/21/2021

Working principle and characteristics of single screw pump

Single screw pumps have been widely used in developed countries, and most foreign countries call single screw pumps “Monopumps” (MONOPUMPS). Due to its excellent performance, the scope of applications has also been rapidly expanding in recent years. The biggest feature of the pump is strong adaptability to the medium, stable flow, small pressure pulsation, and high self-priming ability, which cannot be replaced by any other pump type.

The single screw pump is a new type of pump that works according to the principle of revolving meshing volumetric type. The main working parts are eccentric screw (rotor) and fixed bushing (stator). Due to the special geometric shapes of the two parts, separate sealed cavities are formed respectively. The medium flows uniformly in the axial direction, the internal flow rate is low, the volume remains unchanged, and the pressure is stable, so there is no vortex and agitation. The output pressure of each stage pump is 0.6MPa, the head is 60m (clear water), and the self-priming height is generally above 6m.

The transmission can be directly driven by a coupling, or variable speed by high-speed motors, V-belts, gearboxes and other devices. G type screw pump has few parts, compact structure, small size, simple maintenance, rotor and stator are the vulnerable parts of the pump, simple structure, easy to assemble and disassemble. Because the stator is made of a variety of elastic materials, this kind of pump has the advantage of conveying high-viscosity fluids and conveying media containing hard suspended particles or media containing fibers that cannot be matched by general pumps. Its flow rate is proportional to the speed.

10/31/202110/31/2021

Advantages of KSMR-200 HDD Mud Purification System

Advantages of KSMR-200 HDD Mud Purification System:

The biggest advantages of the Mud Purification System include integrated design, small overall dimensions, small footprint and easier moving. The key technology lies in adopting LS2·752 dual-deck linear shale shaker, which is specially designed and developed for construction conditions with low capacities and rather limited service space. LS2·752 shale shaker can be equipped with two layers of screens with different meshes, desander or desilter, achieving two-stage screening function simultaneously. The benefits like compact structure, small size and light weight allow it to greatly save costs and installation space, and effectively shrink overall dimensions of the mud recovery system.

Parameters of KOSUN KSMR-200 HDD Mud Purification System:

System Capacity: 200GPM (50m³/h)

Particle Size after Treatment: 15~44μm

Processing Stage: two stages

Total System Power: 44kW

Total System Volume: 5m³

External Dimensions of the System: 4000x2360x2940mm

KOSUN KSMR-200 HDD Mud Purification Systems are mainly used in HDD, coalbed methane exploitation and other construction projects with requirements on capacities below 200GPM. The Mud Purification System is also designed with mud preparation devices. After being treated by a dual-deck shaker, add necessary mud materials and stir them evenly to prepare mud with qualified properties for recycling, which can greatly reduce construction costs and effectively protect the environment.

09/30/202109/30/2021

Drilling fluid centrifuge is a very important solid phase control equipment

In the drilling solids control system, the drilling fluid centrifuge is a very important solids control equipment. The drilling fluid centrifuge uses the principle of centrifugal sedimentation and separation to separate the suspension in the drilling fluid. It is one of the important equipment in the drilling field to balance the viscosity and specific gravity of the drilling fluid and recover the heavy gold powder in the drilling fluid. KOSUN horizontal spiral unloading sedimentation centrifuge is used for the separation of suspensions containing solid particles with a diameter of ≥2μm, as well as the treatment of drilling mud and liquid. It is particularly effective for oilfield and industrial services, especially in environmentally sensitive areas. The recovery rate is high, the solid phase control is effective, and the cost of mud replenishment and treatment is significantly reduced. This series of centrifuges are equipped with sophisticated dynamic balancing equipment, which can run smoothly for a long time at a speed of 0~3900RPM, and the centrifugal force generated can be as high as 3000G.

The drilling fluid centrifuge is a special equipment for solid-liquid separation. The separation process of the solid and liquid phases in the mud is completed in the drum, and is used to separate the ultrafine solid particles in the drilling fluid. Principle: The drilling fluid centrifuge uses the high-speed rotation of the drum to drive the mud that enters the drum to rotate at a high speed. The mud is thrown on the wall of the drum to form a liquid circle. The solid particles in the liquid circle are hundreds or even thousands of times greater than their own gravity. With the centrifugal force, the drilling fluid centrifuge overcomes the resistance of the mud viscosity and quickly settles on the inner wall of the drum to form a solid phase layer, and the liquid forms a liquid phase layer. The ratio of the centrifugal force of the solid particles in the fluid circle of the drilling centrifuge to its own gravity is called the separation factor of the centrifuge. A centrifuge with a large separation factor can separate finer particles from the mud.

09/29/202109/29/2021

The function and advantages of drilling fluid cleaner

The drilling fluid cleaner is a combined mud cleaner for sand removal and mud removal, including a cyclone desander, a desilter, a pressurized pump, a cyclone, an underflow trough, a drilling fluid shaker, a support and a base. The mud is separated by cyclone desander and desilter, and the overflow returns to the mud solids control system. The underflow is further screened and processed by the shale shaker. If necessary, the shale shaker of the mud cleaner can be used as the front-stage shale shaker.

Structural features of drilling fluid cleaner:

1. High degree of automation: The feeding, separation, and unloading processes of the centrifuge are continuously and automatically carried out under high-speed operation, and the automatic control of centrifugation and separation is realized by programmable control.

2. Working performance: The differential used in the centrifuge is a two-stage involute planetary gear differential, a cycloidal pinwheel differential is rotating, the working temperature is low, the transmission torque is large, and the performance is reliable. The design of the anti-blocking device of the screw pusher can make the power larger, which has a great effect on the torque of the equipment itself, so that the work performance is better.

3. Strong craftsmanship: the centrifuge adopts dual motors and dual frequency conversion energy feedback differential speed for flexible stepless adjustment and online intelligent control, and the speed can be adjusted at any time according to the changes of materials.

4. Low noise.

5. Large processing capacity.

6. Reliable performance: The centrifuge is equipped with torque protection, power control and other protective means, which can effectively eliminate or damage the machine caused by sudden failures. All drives are equipped with protective covers.

7. Good working site: the centrifuge to separate materials is carried out under closed conditions to ensure that the operation site is clean and pollution-free, and the production is clean and hygienic to achieve clean production.

06/20/202106/20/2021

The Role of Drilling Fluid Vacuum Deaerator

The drilling fluid vacuum deaerator, usually installed after the drilling fluid shale shaker, can effectively separate harmful gases in the drilling fluid mud, while maintaining the specific gravity of the mud, and protecting the sand pump and mud pump to improve the treatment effect of subsequent equipment . KOSUN vacuum deaerator adopts an autonomous slurry suction method, no additional slurry supply pump is required, and a unique infrared liquid level monitoring system is configured to ensure the continuous and safe use of the equipment.

Vacuum deaerator is a new type of special equipment used to process gas intrusion drilling fluid, also called negative pressure deaerator, which can quickly remove various gases invaded into drilling fluid, restore the specific gravity of mud and stabilize mud performance, having a very important role. At the same time, it can also be used as a high-power mud agitator, suitable for all kinds of mud circulation purification systems. This equipment is a negative pressure deaerator with a scientific and reasonable design structure, which can effectively separate gas and liquid, filter out impurities, and ensure that the exhaust pipe is always unblocked.

06/28/2020

Dredge Dewatering System-KOSUN

Considering the big mud content and difficult environmental management in the proccess of river dredging, KOSUN is aimed to design and research a integration Dredge Dewatering Solution in order to save a lot of cost for customer. At present, KOSUN can design and configurate different model Dredge Dewatering System to meet requirements of different customers according to the working condition of river silt the customer provided.

KOSUN Dredge Dewatering System are applied to Lake dredging, river dredging, pond reservoir dredging engineering, municipal pipelines dredging sludge, clear water stations desilting, river dredging engineering, enterprise slag settling pond engineering, drainage sewage dredging engineering such as dredging project.

KOSUN Dredge Dewatering System is mainly consist of shale shaker, desander, desilter and decanter centrifuge. In the actual selection process, the 3-6 stage separation system can be selected based on different situations. Dredge Dewatering System can make the water content of the slurry under 80% and can decrease the slurry volume. That can be transported by the common slag car to save more transportation cost.

Know more about KOSUN Dredge Dewatering System, please email sales@adkosun.com.

Tag:River Dredge Dewatering System, River Dredging Dewartering Equipment, Dredge Dewatering System.

Kosun-River Dredge Dewatering System Expert
Email: sales2@adkosun.com
Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www .kosun.com
http://www.kosuneco.com

05/28/2020

Dredge Slurry Separation System

River dredging process system is generally adopts a cutter suction dredger to absorb the muddy water mixture at the bottom of river, and then transport it along the pipeline to a sludge drying treatment field. After machine sorts the garbage mixed in mud, the mud is passed into the concentration tank in the field, and the mud water separation is carried out through the mud treatment system. Finally, water reaches the standard discharge, and the wet sludge is sent to sludge dewatering equipment to dehydrate and becomes solidified mud cake for reusing.

Dredge Slurry Separation System mainly used for the separation of sludge from rivers. KOSUN Dredge Slurry Separation System is consist of shale shaker, desander, desilter or decanter centrifuge for 3 to 6 stage separation depending on the needs.

KOSUN Dredge Slurry Separation System is consisting of 3 parts. The first one is the dredging boat and first stage separation pool for large size of the trash. The dredging boat is always moving on the surface of the lake or river, and the suction unit would go down deep to the bottom of the lake or river and then suck sludge then transfer to the ground by a hose which is always float on the water surface. On the ground, there will be a pool which is divided into several parts by different mesh size of wire screen. The sludge flow coming out from the hose will get into the pool; the large size of the trash in the sludge would be blocked by these several wire screens, while the slurry will flow away for next process.

The second part of the Dredge Slurry Separation System is the recycling system which is including several equipment that is used especially for the solids and liquid separation. The slurry will be fed into a scalping shaker, here the solids which is large than 1/8 inch would be separated out, and the slurry would then be pump transferred to the desander for much fine solids removing. After treated by the desander, almost all the solids with size of 50 microns would be removed out.

The third part of the Dredge Slurry Separation System is the ultra-fine solids removing equipment. Some contractors like to use the filter press as the final solids removing units, the solids separated are really dry and shaped like cake. While another option is to use the decanter centrifuge that could be used to remove the ultra-fine solids with size down to 2 microns. After treated by the filter press or the centrifuge, the water is already clean that could be flow back to the lake or river.

For more information of KOSUN Dredge Slurry Separation System, please contact with us by sales2@adkosun.com.