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5, main bearing lubricant flow, liquid level monitoring
The flowmeter and the liquid level switch are installed on the lubrication station of the centrifuge; the flow rate of the lubricating oil is monitored, and the shutdown protection program is started when the liquid level is low.
6, the feed flow meter
A feed flow meter is installed at the feed end of the centrifuge to monitor the feed flow rate of the centrifuge in real time.
7, the feed pump requires frequency conversion.
The feed pump is a variable frequency controlled mud pump. The speed determines the flow rate and the motor speed can be adjusted to control the flow.
8, security
8.1 Main bearing temperature protection: The main bearing is installed with a thermocouple to measure the temperature, the temperature reaches 85 degrees alarm, and 95 starts the shutdown protection program.
8.2 Vibration protection: The vibration switch is installed on the body. When the vibration is greater than 7.1 mm / s, when the vibration is greater than 10 mm / sec, the shutdown protection program is started.
8.3 Torque overload protection: When the torque of the motor is greater than 90%, the flow rate of the feed pump is automatically reduced. When the torque of the motor is greater than 110%, the shutdown protection program is started.
8.4 Lubricating oil level protection: When the liquid level is low, the centrifuge starts the shutdown protection program.
8.5 Start interlock protection: There is a start and stop interlock protection program in the PLC program. The start can only start the auxiliary machine first, then start the main machine, then start the feed pump; stop it can only stop the feed pump first, then stop Host, then stop the auxiliary machine.
8.6 Motor temperature protection: When the motor temperature is higher than the set alarm value, the alarm is displayed on the HMI. When the motor temperature is higher than the set stop value, the shutdown protection program is started.
9, automatic stop design when blocking(Explosion Proof Pressurized VFD Control Panels)
When the material is blocked, the current and torque will be overloaded. At this time, the PLC and the inverter will start the automatic stop protection function.
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In recent years, GN Solids Control has developed construction waste mud treatment equipment for construction waste mud generated from subways, tunnels, bridges, and slotted continuous walls. The main equipments include centrifugal separation device and chemical treatment device, which can realize automatic operation, energy saving, emission reduction, high efficiency and environmental protection. It solves the construction environmental problems for the majority of users and reduces the construction difficulty.
Introduction to automatic control of mud centrifuge separation system:
1, speed, differential speed, differential speed detection
Drum speed, auxiliary machine speed, differential speed are monitored by PLC in real time and displayed in real time on HMI; differential speed = (drum speed – auxiliary motor input speed) / differential differential ratio.
- After each run is completed, the automatic cleaning line needs to be run.
The selection buttons “stop flushing” and “stop no flushing” are set on the HMI. The user can select according to the actual situation; the shutdown flushing process is: after stopping the liquid supply pump 30S, the flushing valve (electric) is turned on, and the flushing valve is closed after 10 minutes. (Electric), then stop the main motor for 20 seconds and stop the auxiliary motor after 30 seconds.
3, vibration monitoring
A vibration switch is installed on the centrifuge body. When the vibration is greater than 7.1 mm/s, the vibration protection is activated when the vibration is greater than 10 mm/sec.
4, spindle bearing temperature
The main bearing at both ends of the drum is equipped with a thermocouple to measure the temperature, the temperature reaches 85 degrees alarm, and 95 starts the shutdown protection program.
We will talk rest info in next page,to be continue……
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GN Solids Control is a professional manufacturer of drilling mud solids control equipment. It currently produces equipment in more than 70 countries and regions around the world, providing drilling solids control equipment for dozens of oilfield service providers around the world. The after-sales service has a global radius, responding 24 hours a day to customers around the world, and fulfilling the after-sales service commitment within 72 hours. Four important branch structures have been established around the world, with the United States, Russia, Dubai, and North Africa as parts supply and after-sales services.
The following is a very simple and practical mud mixing system:
System components:
- Armoured mud tank device: size 8000*2600*2200mm, volume 20 cubic meters, armored design for transportation and hoisting and mobile construction projects. The round mud mixing tank has no dead angle design, the mud is evenly stirred, and the mud condition is beneficial to the drilling construction service. It includes convenient design such as ladders, walkways, guardrails, manifolds and valves.
- Mud transfer pump: GNSB6*5C-13J, motor power 45kw, conveying capacity 150 cubic meters / hour. The main purpose is to transport the mud to carry the mud material in the funnel into the mixing tank.
- Mixing hopper: GNSLS045A, mainly used for adding dry powder mud materials.
4. mud agitator: GNJBQ075DD, motor power 7.5kw, speed 60 rev / min, double impeller, mainly the mixing and miscibility of the dry powder slurry material and water.
- Electronic control system: It is mainly to control the explosion-proof control system of the above equipment that needs mud mixing work.
In the drilling environment, the uniformity of the mud will greatly affect the drilling work. In order to ensure the mud supply flow and quality, the mud mixing should be taken seriously.
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GN Solids Control is the first manufacturer of mud solid-control equipment in the country to pass the EU CE certification export standard qualification. The EU’s export certification standard is undoubtedly a high standard of internationalization. Through years of hard work and practice, GN Solids Control has been unanimously recognized and praised by European certification bodies, and won the continuous orders of European users. GN manufacturing is undoubtedly the first professional manufacturing of China’s drilling solid control equipment into the European market. Business. China’s high-end equipment manufacturing industry is generally lower than the manufacturing level of European and American countries. Starting late, unable to master the core technology is a high threshold for many manufacturers. GN Solids Control is the first to go abroad and actively learn to innovate. After more than 10 years of efforts, GN produces Equipment has been exported to more than 70 countries and regions around the world.
At present, GN Solids Control has researched and researched various fields in the international market this year, and has developed a variety of mud processing equipments with world-class levels. Centrifugal sand is one of the core products with high standards, high performance and wide use.
GNSB series centrifugal pumps are mainly used for mud and sewage transportation. They can be used as mud supply for solid-liquid separation equipment, including desanders, desilters, centrifuges, filter presses, filters, mixing funnels, etc. All GN Solids Control centrifugal pumps are mechanically sealed and the wear parts are cast from wear-resistant alloy ductile iron. The base is integrally cast, and the GN centrifugal pump has the advantages of high interchangeability and high universality. The material has high hardness and wear resistance and has a service life of more than 20% higher than that of ordinary sand pumps.
As a widely used pump, centrifugal pumps are used in different scenarios in the global market. GN Solids Control also considers the after-sales maintenance requirements while producing pumps. GN Solids Control’s pump parts can be combined with some international brands Li Xin Pump 100% interchangeable to improve pump efficiency
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GN solids control recently developed a set of waste sludge treatment equipment in cooperation with well-known environmental protection service companies in the United States. It has entered the experimental stage and has achieved remarkable results. At present, we have reached a strategic cooperation intention with the US environmental service provider. We provide specialized waste sludge treatment equipment, and the other party uses our equipment to do business work on sludge treatment in the Chinese market. The other party is mainly responsible for environmental protection treatment for oil field abandoned sludge, refinery abandoned sludge, and oil plant contaminated ground soil.
The main components of the GN solid control sludge treatment system:
1, sludge premixed heating, stirring, insulation, conditioning equipment.transfer by vacuum pump
- Shaker screen for coarse filtration transfer device.
3, the first grade sludge fine processing device.
As shown in Fig. 4, a second-stage sludge treatment device, a chemical dosing system.
5, oil and cement three-phase separation device, dosing device.
As shown in Fig. 6, the oil-cement three-phase separation secondary filtration device and the standby fine processing device.
As shown in Figure 7, the water treatment air flotation device.
8, oil, water, mud storage relay device.
This system can effectively separate the oil substances in the waste and recycle them to improve the economic benefits of customers.
Sludge treatment system treatment process:
- The sludge enters the premixing heating and tempering device for heating and emulsification dilution treatment.
- The emulsified and diluted sludge passes through a transfer pump and enters a screening and filtering device for coarse filtration to remove large particles, and the liquid is collected into a bottom storage tank.
- The sludge liquid of the sieving storage tank is sent to the first-stage fine processing equipment for the first-stage solid-liquid separation treatment.
As shown in FIG.
4, the separated liquid is subjected to the medicinal conditioning to enter the secondary fine solid-liquid separation treatment.
- After the treatment, the clean oil is added to the three separation devices through the dosing to carry out the oil and cement three-phase separation treatment.
6, the oil is recycled, and the water is purified by an air flotation device.
As shown in Fig. 7, all of the discharged solids were collected in a concentrated manner, and then subjected to a post-process detoxification treatment.
The core equipment in the system is manufactured by GN solids control to ensure system stability and post-maintenance.
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GN Solids Control is the largest manufacturer of mud processing equipment in the industry. The recently developed mud tank washing system has been on the market for nearly 2 years and has been highly evaluated by customers. The cleaning system is light and convenient, saving labor and timeliness. Sex, cleanliness and cleanliness have a more outstanding performance. Efficient cleaning of multiple mud tanks during on-site use can replace the normal cleaning work of three shifts, saving labor and efficiency and saving energy.
The GN Solids Control GNTC-30B automated wash tank system is a closed loop system for continuous cleaning of mud tanks, tanks, and chemical tanks. The washing tank system supplies clean water to the high-pressure washing machine installed on the mud tank, and the combined pump pumps the sewage back to the washing tank system for filtration and separation, and the clean water is sent back to the high-pressure washing machine for further circulation. With GN Solids Control’s tank washing system, water consumption can be reduced and labor costs can be reduced. The GNTC-30B automated tank washing system can handle up to 30 m3/h.
GNTC-30B main technical parameters:
1, clean water storage volume: 7.5 m3
- Sewage treatment capacity: 30 m3/h
3, system size: 3499x2758x3207mm
4, system weight: 6500 KG
5, the total power: 26.5 Kw
6, the number of pumps: 1 sand pump; 1 vacuum pump, 1 pneumatic diaphragm pump
- The system contains the necessary motor and electronic control. The Chinese explosion-proof standard can be applied to the explosion-proof of Zone I.
The GNTC-30B workflow is as follows:
1) Centrifugal pump (10) Extract clean water from buffer tank (8), supply high pressure washing tank equipment (2) for cleaning mud tank (1). 2) Vacuum pump (4) Extract waste water from mud tank (1). Install a filter (3) between the mud tank (1) and the vacuum pump (4). It is used to filter coarse particles and protect the pump and desilter in the system to reduce wear. 3) The vacuum pump (4) pumps the sewage to the desilter (5) for separating fine particles. 4) The fine particles separated by the mud remover (5) are pumped into the cuttings box (9) through the diaphragm pump (7). 5) The clear water overflowing from the mud remover (5) will enter the inclined plate settlement (6) , further remove precipitated solids. 6) Clear water separated from the sloping plate settlement (6), overflow into the buffer tank (8) 7) Diaphragm pump (7) Conveying the sloping plate (6) Separated sludge containing large particles is transported to the cuttings box ( 9)
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With the development of petroleum industrialization, the pollution problem brought by the drilling process has received more and more attention. At present, there is no recognized effective treatment process suitable for drilling waste liquids in China, mainly because of the wide variety of drilling fluids and working fluid systems, complex compositions and different usage conditions. Techniques that result in waste fluids for a particular type or region of an oil field are not necessarily suitable for use with other types or regions of waste. In addition, compared with the current comprehensive level of sewage treatment in the petroleum industry, the treatment cost of drilling waste liquid and wastewater is relatively high, and the treatment effect is general. Overall, the current drilling wastewater treatment technology is still far from satisfactory.
Mainly manifested in:
- The efficiency of the treatment agent is not high, resulting in failure to meet the standard
2, the treatment method is single, the ability to remove pollutants is limited, and it is impossible to cure the problem
3, the continuity processing device is not targeted, the processing cost is high, and the treatment plan is popularized in a large area.
In summary, no matter which treatment technology has a certain range of application, the limitation is strong. Therefore, the method selection should be based on the nature of the abandoned drilling fluid produced by each oil field and the geography, climate and environment of each oilfield. In order to more effectively optimize the drilling wastewater pollution problem, GN Solids Control believes that future research efforts should not only strengthen the source and process control, but also develop new technologies. Specifically, there are the following aspects:
- Promote clean production and cure the symptoms first
- Develop low-cost, high-performance environmentally friendly drilling fluids
- Development of new drilling fluid water treatment agent and unified technology
- Develop a new technology for harmless comprehensive utilization
- Strengthen management control and strengthen process supervision
- Optimize for different project design plans based on actual conditions
The main core equipment of the system is vibrating screen for high-G shale shaker and high-speed decanter centrifuge (according to the situation with 20-foot flocculation dosing system to improve the treatment effect of the centrifuge), and the system supporting feeding screw pump and armoring treatment. Tank, agitator, etc. According to the specific requirements of the customer for the discharge, make targeted adjustments to ensure that the discharge meets the customer’s expected treatment effect.
The clean production drilling fluid purification equipment developed by GN Solids Control can effectively reduce the generation of drilling waste, reduce the amount of waste liquid generated by 30~50%, effectively reduce the cost of harmless treatment, and minimize the Environmental pollutants are produced.
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Since the successful development of the oily sludge treatment system in 2014, GN Solids Control has successfully cooperated with nearly 16 companies worldwide and has sold nearly 30 units/set of oil-containing sludge treatment systems of 2 to 20 cubic meters per hour.
The containerized oily sludge treatment system is composed of a containerized system specially designed by GN i designers in combination with years of experience in oily sludge treatment systems, and the production of GN Company in the manufacture of oily sludge treatment system equipment. The department adopts the industry-leading pickling, passivation and hot-dip galvanizing process, and adopts high-pressure airless spraying equipment to greatly improve the wear-resisting and anti-corrosion effect of the product itself.
GN oily sludge treatment system adaptation area:
1) Waste tank bottom sludge, oil sands, oily sewage generated by crude oil tank clearing tank construction;
2) sludge, oil sands, etc. from the abandoned oil pool of the refinery;
3) Waste oil-based drilling fluid produced by oil and gas drilling, on-site floor sludge, oil sands, etc.;
The containerized oily sludge treatment system produced by GN is customized according to customer needs. This system mainly consists of oily sludge vacuum pump, premixed tank, shale shaker system, centrifuge separation system, dosing flocculation system, oil-water separation system, Oil tanks, water tanks, containers, etc., oily sludge contains a large amount of oily benzene, phenols, strontium, barium and other odorous toxic substances. GN Company uses centrifugal separation to centrifuge oily sludge. The two phases are separated, and the separated liquid phase is an oil-water mixture. The oil-water mixture is then transferred to a three-phase disc machine for oil-water separation. After the customer has specified the relevant parameters in the previous process of dewatering of the oily sludge, the temperature of the oily sludge, the amount of the breaker and the flocculant are used, which is more conducive to the GN technicians’ handling of the containerized oily sludge treatment system. technological design
Special note: Oily sludge is passed through GN mechanical separation equipment and needs to be combined with suitable chemicals and heat treatment. Different materials and different chemical agents will have different actual processing amounts and treatment effects. There may be deviations in the throughput of the device from the amount of drug used.
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written by GN solids Control
Hebei GN Solid Control is a professional manufacturer of drilling mud solid-control equipment. It currently produces equipment in more than 70 countries and regions around the world, providing mud solid-control equipment for drilling services for dozens of oilfield service providers around the world. . The after-sales service has a global radius, responding 24 hours a day to customers around the world, and fulfilling the after-sales service commitment within 72 hours. Four important branch structures have been established around the world, with the United States, Russia, Dubai, and North Africa as parts supply and after-sales services.
Next, we will introduce a very simple and practical part of the mud mixing system:
1. Armoured mud tank device: size 8000*2600*2200mm, volume 20 cubic meters, armored design for transportation and hoisting and mobile construction projects. The round mud mixing tank has no dead angle design, the mud is evenly stirred, and the mud condition is beneficial to the drilling construction service. It includes convenient design such as ladders, walkways, guardrails, manifolds and valves.
2, mud pump/centrifugal pump/sand pump: GNSB6 * 5C-13J, motor power 45kw, delivery capacity 150 cubic / hour. The main purpose is to transport the mud to carry the mud material in the funnel into the mixing tank.
3. Mud mixier: GNSLS045A, mainly used for adding dry powder mud materials.
4, mud agitator: GNJBQ075DD, motor power 7.5kw, speed 60 rev / min, double impeller, mainly the mixing and miscibility of the dry powder slurry material and water.
5. Electronic control system: It is mainly to control the explosion-proof control system of the above equipment that needs mud mixing work.
More question,welcome contact GN solids control
written by GN solids Control
Since the successful development of the oily sludge treatment system in 2014, GN Solids control has successfully cooperated with nearly 16 companies worldwide and has sold nearly 30 sets of oil sludge treatment systems of 2~20 cubic meters per hour. Among them, domestic central enterprises have successfully cooperated with 5 sets of large-scale sludge treatment systems to serve high-polluting sites of oily sludge in China and abroad. In the construction operation, the product performance is stable, the operation economy is good, and the operation and maintenance are easy to be praised by users.
GN oil sludge treatment system adaptation field:
1) Waste tank bottom sludge, oil sands, oily sewage generated by crude oil tank clearing tank construction;
2) sludge, oil sands, etc. from the abandoned oil pool of the refinery;
3) Waste oil-based drilling fluid produced by oil and gas drilling, on-site floor sludge, oil sands, etc.;
The above mentioned oil sludge oil sand refers to a mixture of oil, water and solid. In order to treat the sludge and recover the oil and water, it is necessary to separate the oil, water and solids. At the same time, it is important to dispose of the solids at a lower cost and recycle as much oil as possible. The GN sludge treatment system heat-separates the sludge by adding sludge treatment chemicals, and then solid-liquid separation into oil, water, solid and other products, and separately processed, recovered, and discharged without pollution.
The main equipment in the system includes: shale shaker, centrifuge, chemical dosing unit,etc
GN oily sludge treatment system process:
- Dispose of the oily sludge through a sludge vacuum pump to the heating premixing device.
- Add chemical agents to the heating premixing device for dilution, emulsification, etc.
- The prepared sludge is transported to the GN screening device through a slurry pump for coarse filtration treatment. The liquid is subjected to fine separation treatment in the subsequent step, and the solid is subjected to a harmless treatment in the subsequent step.
- After the sieving treatment, the sludge is heated and modulated, and then enters the ultra-high-speed separation device for fine separation treatment.
- After the separation, the liquid enters the three separation devices and is subjected to three separation treatments of oil, water and mud; the solids enter the post-process and are harmlessly treated.
- After the three-phase separation is completed, the oil and water are separately stored, and the solid is further heated and modulated, and then separated.
Special note: Oily sludge is passed through GN mechanical separation equipment and needs to be combined with suitable chemicals and heat treatment. Different materials and different chemical agents will have different actual processing amounts and treatment effects. There may be deviations in the throughput of the device from the amount of drug used.
More question,welcome contact GN solids control
written by GN solids Control
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