Tailings processing is a major problem facing the mine producers.

Tailings refers to the waste slag discharged by mining enterprises after the completion of mineral processing, which is mostly discharged in the form of mud to form the tailings pond. The tailing pond covers a large area and has a great potential safety hazard. In addition, the water from the tailing rich in mineral dressing agents penetrates into the ground, causing great pollution to the environment and groundwater. Therefore, tailings processing is a major problem facing the mine producers.

Tailings are the “wastes” discharged by mining enterprises under certain technical and economic conditions, but most of them contain various colored, black, rare, rare earth and non-metallic minerals, which are valuable secondary resources. When technical and economic conditions permit, it can be effectively developed again. Tailings are profitable. How to deal with them?

Xi ‘an KOSUN dry tailings flotation rows using flotation, centrifugal dehydration dry process, tailings after a buffer tank with slurry pump to high speed frequency conversion in the horizontal screw centrifuge, all returned after high-speed centrifuge separation of the liquid grinding, classification work with again, while the solid phase by belt transporting chance to the tailings for dry lamination stack so as to ensure the long-term safety of the tailings.

Flotation dry discharge of tailings is a new technology of tailings disposal, which is not only technically advanced and feasible, but also maximizes the economic benefits of mining enterprises. KOSUN’s tailings flotation dry discharge process equipment is mainly composed of grading cyclone group, coarse size tailings dry discharge high-frequency screen, efficient deep cone thickener, high pressure filter press and other equipment. It is mainly used for the dehydration treatment of tailings in concentrator to achieve the purpose of dry pile of tailings, so as to recover available resources and reduce environmental pollution.

Maintenance and management of solid and liquid separation equipment and drilling waste disposal equipment produced by KOSUN

Equipment wear and maintenance

The concept of wear and tear: there are two types of wear and tear that can occur over a long period of time. One is material wear, refers to the use of mechanical forces caused by friction, vibration loss; The second is base wear. If the equipment is scrapped due to improper operation or other reasons, it cannot be used again. Or because of the progress of science and technology, the equipment with better performance and efficiency of the same purpose keeps appearing, which reduces the “value” of the original old equipment. Formally, the former is called visible wear and the latter is called invisible wear.

Equipment maintenance job category: equipment maintenance includes lubrication, corrosion protection, parts control and replacement, etc. Generally, equipment maintenance is classified as follows.

1. Daily maintenance. This is the external maintenance of the equipment, such as cleaning, inspection, refueling, etc., which is undertaken by the operator as part of the handover.

2. Primary maintenance. Inspection and maintenance of vulnerable parts of equipment. Including cleaning, lubrication, equipment parts and key disassembly, adjustment, etc., generally under the guidance of full-time maintenance personnel by the operator.

3. Secondary maintenance. Carry out strict inspection and repair of equipment. Including replacement parts, repair equipment precision, etc. By full-time maintenance technical workers.

4. Minor repairs. This is a minimal amount of local maintenance, with only local repairs, replacements and adjustments.

5. To repair. This is one of the biggest planned repairs. Including the total dismantling of equipment, inspection, repair, replacement, adjustment, and finally reassembled into a new machine, and the appearance of the equipment for repainting or painting. Usually only a few years or even ten years to carry out, can be completed by professional (repair) factory.

Principles of equipment maintenance work

Pay equal attention to maintenance and planned overhaul, and give priority to prevention. Adhere to good maintenance, can reduce the equipment “wear” degree; Timely maintenance and can prevent small problems into big problems.

Adhere to the principle of maintenance first, production later. Production must have good equipment, so cannot do without maintenance. In order to catch up with the production task, it is not allowed to make the maintenance equipment “operate with disease”, so as to cause serious damage or accident, which will bring greater loss to the production.

Adhere to the principle of combining professional repair with mass maintenance. Workers are the users of the equipment, they are most familiar with the performance and technical status of the equipment; And professional repair personnel has the advantage such as special knowledge and overhaul means, so equipment maintenance should be given priority to with major, group union only.

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: 029-89565356

Email: sales2@adkosun.com

Contact person: Jinbo Zheng

Contact person: Jinbo Zheng

http://www.kosun.com

http://www.kosuneco.com

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

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.

KOSUN SERVICE FOR YOU!

KOSUN must do anything to enable the clients to get more benefits and to seek more business opportunities in the market. We promise to create more values for you and the society.We must develop new technologies and new products for our clients, and make our popularity on a high level in this field.We must heighten our position and set a good example in this field. A group of experienced staff are ready to serve our clients with enthusiasm at any time!

Service concept: It is all about the clients,and provide clients with high value-added products.

Service orientation:
Regard the realization of service promise as the destination; implement the concept of high-quality,high-taste, high-efficiency and all-around-way service in the process from the design, manufacturing,management to the sale of products.

Service promise:From the design, we will do every step carefully to maximize clients satisfaction.

1.Pre-sale service: Act as a good adviser and assistant of clients; enable them to get rich and generous returns on their investments.
(1) Select equipment model;
(2) Design and manufacture products according to clients’ special requirement;
(3) Train technical personnel for clients;

2.Service during the sale: Respect clients; devote ourselves to improving the total value of clients. (1) Pre-check and accept products ahead of delivery; (2) Help clients to draft solving plans.

3.After-sale service: Provide considerate services to minimize clients’ worries.
(1) Assist clients to prepare for the first construction scheme;
(2) Install and debug the equipment;
(3) Train the first-line operators on site;
(4) Examine the equipment regularly;
(5) Take initiative to eliminate the troubles rapidly at site;
(6) Distribute the guarantee fittings door-to-door;
(7) Provide perfect service;
(8) Provide technical exchanging;
(9) Provide maintenance for big items.

The No. 6 Gas Production Plant, Changqing Oilfield Company makes a drilling footage over 100,000m

On April 1, the drilling footage of the New Year’s production capacity of the No. 6 Gas Production Plant, Changqing Oilfield Company exceeded 100,000 meters, and the time to reach this length was 28 days earlier than the year of 2018.

In order to ensure the quality and efficiency of production and construction, as well as high-quality and rapid development, the No. 6 Gas Production Plant has continuously deepened geological research and promoted technological innovation. On March 6, the first analysis while drilling and deployment disclosure meeting this year preliminarily defined the overall plan for the annual production and construction deployment, and carried out the geological analysis while drilling according to the implementation effect, and timely optimized and adjusted the deployment. Up to now, a total of 27 additional coordinates have been deployed, 11 production and construction favorable zones have been implemented, and 339 effective coordinates have been prepared.

 At the same time, relying on the special projects and key technologies of Changqing Oilfield Company, the “twice-drilling” technology and the “small borehole” test were actively promoted. On March 8, the gas well with twice-drilling technology in the Gaoqiao area was successfully drilled. The second section to the finished drilling only took 11.21 days, which was 30% higher than the drilling speed of a conventional well with the same depth.

CNOOC’s oil and gas reserves have hit a new record high, and CNOOC people are amazing!

On March 21, the reporter learned from China National Offshore Oil Corporation (CNOOC) that the Company released its 2018 annual performance report. CNOOC steadily increased oil and gas reserve and production. The annual net oil and gas production reached 475 million barrels of oil equivalent, and continued to maintain cost competitive advantages. The main cost of barrel oil continued to decline year on year, creating a record of five consecutive years of cost reduction. By the end of 2018, the company’s net proven reserves reached 4.96 billion barrels of oil equivalent, hitting a new record high, and the resource base for sustainable development in the future will be more solid.

In the next step, CNOOC has formulated a strategy for deepwater development in the South China Sea. It plans to build a deepwater oilfield cluster in the eastern part of the South China Sea in the next few years, and build the first 100 billion cubic meters deepwater gas field discovered by China in the western South China Sea, and continue to increase investment in exploration and development, deepen the potential of oil and gas resources in the South China Sea, and enhance the comprehensive support capability of oil and gas.

IEA: An acute shortage of global fuel oil supply will continue in next two years

The International Energy Agency (IEA) estimates that fuel oil supply is expected to face an acute shortage before 2020 when sulfur limit for marine fuel is set due to upgrade in refinery and a decline in medium and heavy crude oil production. According to the new regulations of the International Maritime Organization (IMO), by January 2020, the highest proportion of marine fuel sulfur will be reduced from the current 3.5% to 0.5%.

The IEA says, since November last year, due to the OPEC and non-OPEC (such as Russia) production reductions, the global production of medium and heavy crude oil has dropped by 1.4 million barrels per day, reducing the residual fuel oil market by 500,000 barrels per day. In the fourth quarter of last year, global demand for residual fuel oil was 6.74 million barrels per day, declining by 2.2% year-on-year.

The IEA states that the reduction in global crude oil supply is narrowing the profit margin of complex refineries comparing with simpler ones, which in turn leads to the disappearance of advantages of complex refineries. The increasing strengthening of fuel oil cracking in the past five months has made upgrades less feasible.

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