Recovery of waste lubricants requires much less energy consumption than the extraction of lubricants from crude oil. Recycling waste lubricants also protects the environment. Nowadays, there are several ways to recover waste lubricating oil by solvent refining machine.
1. Furfural Solvent-based Compound Solvent Technology
Furfural refining technology, as a traditional and mature solvent refining technology, has been widely used in the field of waste oil recycling. The furfural solvent has good adaptability to oil products。 It has the advantages of low price and easy to obtain raw materials. However, the disadvantages of furfural refining are that the solubility of furfural solvent is small, the ratio of agent to oil is large, and the energy consumption for solvent recycling is increased. Furfural is easily cracked and condensed at a temperature higher than 230 ° C, and has poor thermal stability. Therefore, the use of light hydrocarbons and furfural solvents can not only increase the selectivity of the solvent, but also reduce the energy consumption of the production, so as to improve the entire process of waste lubricating oil regeneration.
In addition, the use of surfactant sodium dodecylbenzenesulfonate or polyether as a co-solvent can prevent the formation of water-in-oil molecular films caused by emulsifiers in waste lubricating oil, thereby improving the yield of refined oil. The results show that the effect of refining solvents is better than that of the furfural single solvent by adjusting the reaction temperature and the ratio of agent to oil. The selected compound solvent should have the following characteristics:
① The boiling point and heat capacity of the solvent are lower than those of furfural, which can reduce the recovery temperature of the solvent and reduce energy consumption.
② The density of the solvent is less than furfural, which facilitates phase separation and reverses the flow of the furfural refining process.
③ The solvent has a strong ability to selectively dissolve the non-ideal components of the lubricating oil and reduces the refining temperature.
NMP refining technology plays an important role in the field of solvent refining. NMP has good selectivity and solubility for unsaturated hydrocarbons, aromatic hydrocarbons and sulfides. Compared with furfural and phenol, the N-methyl pyrrolidone solvent has good chemical stability and thermal stability. Its advantages are low volatility and low toxicity. However, the solvent easily corrodes the solvent recycling equipment and is expensive. Not only that but the shortcomings such as large energy consumption and long time required for the distillation and refining process also limit its use.
In order to improve the selectivity of N-methyl pyrrolidone solvent refining, NMP and related auxiliary agents are usually used as a compound solvent. The added auxiliaries are mainly water and ethanolamine. The results show that the determination of process parameters and the chemical composition of the refined oil affect the electrical and oxidation properties of the refined oil. The best process parameters are suitable extraction temperature, 1% water, and the ratio of NMP to low solvent oil is 0.5.
We have introduced some information about the solvent refining equipment of Yangjiang. For more information, please click here.
YSmarines, which is one of the leading suppliers for marine and offshore equipment in China and can provide fluorescent ceiling light with high standard quality, best price promised.
JPY21-2 Type Marine Fluorescent Ceiling Light
The marine ceiling light is a type of fluorescent light and can widely be used for dry cabins, such as the residence, restroom, operator of the sailors and passengers for preventing water. It adopts stainless to ensure won't rusty. The lamp is equipped with B15 lamp holder, used for 24V/15W emergency bulb and the edge of lampshade marks the marking remark clear that needs the emergency device when order.
Features:
1. The installation way of the light is recessed-type, compact structure and delicacy appearance.
2. The lampshade is made of good quality organic, not discolor, fine toughness, softness ray.
3. Equipped compensating capacitance inside the lamp holder, also has a good effect of start, spin-type of lamp holder has fine contact function.
JPY20-2J, JPY40-2J Type Marine Fluorescent Ceiling Light
The fluorescent ceiling light is equipped with the shock to absorb inside and is a shock-proof type. It is applied to dry cabins, such as the residence, restroom, dining room, cab, operator of the sailors and passengers. The shell adopts the steel plate tensioned. The installation way of the light is the recessed type with compact structure and delicacy appearance. It is equipped with compensating capacitance inside the lamp holder.
Features:
1. The lampshade adopts PC, it has the features of non-discolor and fine softness, etc.
2. The lamp equipped G13 lamp holder, used for 24V/15W emergency bulb, the edge of lampshade marks the marking remark clear that needs the emergency device when order.
3. The environmental temperature for work is -30℃~+55℃.
JCY201-2, JCY401-2 Type Fluorescent Pendant Light With Battery
The fluorescent pendant light has a battery and can be used for illumination of the wet places in boats, such as oven cabin, dry cabin, tunnel, pipeline and weather deck etc. The enclosure is stretching formed of high-quality steel plate or stainless steel and the lampshade is PC moulded. It has Junction box with buckle locking, easy to open and close. The electronic ballast can be installed on request with power factor is not less than 0.95.
Features:
1. Bulb emergency, lamp holder B15d, Voltage: 24V, Power:8W~15W.
2. Tube emergency (Single tube), voltage: 220V, Power: 20W/40W.
3. The edge of lamp shade marks the marking, the time of automatic emergency illumination is not less than 180min.
YSmarines supplies marine fluorescent ceiling light for sale, professional certified, equipped with an experienced team of engineers, designer and service staff which can give you the best suggestion.
The shorter the stress line in the mill stand, the smaller the amount of elastic deformation is generated, the greater the rigidity of the hot rolling machinery and the higher the precision of the rolled product. It is a new type of houseless short-stress rolling mill, suitable for small and medium-sized rolling mill renovation, and also for small continuous rolling and semi-continuous rolling plants. For example, in a small semi-continuous rolling mill with an annual output of 150,000 to 200,000 tons, 1202 and 1502 continuous casting billets are used, the rough rolling mill is with the roll diameter is Ф500mm×2, and the rolled parts after cutting head by flying shear enter the diameter Ф350×4 and the diameter Ф300×4 continuous rolling mills.
What's the shot-stress rolling mill mean?
The rolling force received by the rolling mill forms a closed-loop (i.e. the stress line) through the internal stress of each stressed component such as the roll, roll bearing, box, copper nut, and tie rod. The rolling mill base and the down rolling mechanism are not subject to rolling force, and the stress line is shorter than that of an ordinary rolling mill, which improves the strength of the rolling mill and reduces the elastic deformation of the rolling mill, so it is called a "short stress line rolling mill".
Comparison of short stress line rolling mills and housing rolling
1. Short stress loop and high rigidity ensure high precision of the product and easy realization of negative deviation value.
2. There are forward and reverse threads in the two ends of the column, which can realize the alignment adjustment; the rolling centerline is unchanged, which can improve the operation rate, save the time for maintenance and replacement of the guide beam, reduce the operating accidents, and avoid rolling elbows, impacts and entanglements and other process accidents to extend guide lifespan.
3.Easy axial adjustment and small axial clearance.
4. Balance spring is used, the balancing force is constant, and the spring is compact in the bearing seat.
5. The roll system of the intermediate mill is pre-installed and adjusted before changing the rolls. After the stop of the new roll system, the rolling mill has a good pre-adjustment performance, fast roll change and high yield.
6. The bearing seat is automatically adjusted, and the four-row cylindrical bearing is balanced to increase the bearings life.
What’s The Mechanical Spring Starter
The mechanical spring starter is a device to start the engines without electricity. Electric batteries are one of the most common power sources for engine start. But the batteries always can’t work in the extreme low temperature, damp and harsh environment and the hand crank starter will be the ideal choice. This is the reason why marine, offshore oil, underground mining need a mechanical start device.
Advantages of Mechanical Spring Starter
1.Effective In Extreme Low Temperature
When in a cold weather, cranking an engine is a hard work and takes much more energy with the thickened viscosity of the oil. The engine may not crank fast enough to start. The low temperature will slow down its chemical processes of a battery, which makes the power becomes lower.The mechanical engine starting system doesn’t require the battery and is a mechanical device which only relies on manpower can start the diesel engine with displacement up to 50L.
2. Independent Startup System
Mechanical engine starter has an independent starting system does not require hydraulic, pneumatic nor electricity and no auxiliary equipment is required.
3. Simple Hand Crank System
Mechanical starter has an important back up solution when everything else fail, an option for hand crank charging. The operation is simple with winding the handle and pushing the release lever, then the starting process being completed. The maintenance is also easy.
4. Environmentally friendly
The mechanical starting system has no energy consumption and no pollution emissions. Used batteries will pollute the environment and the decay of the battery will produce toxic substances
5. Lightweight And Minimizing Space
With simple manual crank system, the mechanical engine starter will not take up much space. It’s lightweight and easy to carry.
Applications Of Mechanical Spring Starter
Fire Pump
In the event of a power failure in a fire accident, the fire-fighting unit needs to be able to start normally and drive the water pump to extinguish the fire. The requirements for the reliability of the diesel engines are very high. If for some reason, the diesel engine cannot start successfully, the mechanical starter is required as a backup solution to ensure the engine starting.
Emergency
Most of the emergency rescue is mobile, generally in the state of warehouse storage, relative lack of battery maintenance. Usually, meet the failure to start an engine. It is difficult to find backup battery power under an emergency situation. At this time, the mechanical starter can be used to manually start the engine for the rescue problem.
Marine
When the marine ships meet the situation of power off, the emergency generating set is used to generate power for the ship. The mechanical starter is an ideal choice as the backup device for the emergency engine start.
Military
Under the conditions of field military training, the environment is hard and harsh, and the backup is always insufficient. When the battery is out of power, the important military equipment can’t work normally, which may cause serious consequences. The mechanical start device will solve the problem and can ensure the engine starting by the manual system without any other external energy.
Special Environments
There’s always no electricity or the power is low under the environments includes mining, offshore gas and some special chemical plants. The engine starter with a mechanical starting system will effectively work under these special environments.
Backup Of Other Engine Starters
The mechanical start system can be used as the back up and replacement of other engine starting systems, applicable installing on the diesel generator sets of land and marine, mining machinery, engineering machinery and agricultural irrigation and drainage machinery.
Trustworthy Manufacturer– Cqstart Spring Starter
Introduction
Cqstart spring starter is a mechanical device that can compress and energize the high energy springs and release the potential spring energy to start the diesel engine, which is produced by Chongqing Starting Power Unit Co., Ltd. The company was established in 2008 and has years of experience engaging in researching and manufacturing mechanical spring starter with professional R & D team leading by a senior engineer. All the products are strictly tested with detailed test bench data including torque, energy, peak, speed, etc will be provided.
Contact Information
Sales: Julie He(Ms.),
Tel/Whatsapp/Wechat: +86-13637706003
Email: sales1@cqstart.com
Marketing: Harland Wang(Mr.)
Email：sundayritian@cqstart.com
For more professional knowledge about the mechanical spring starter, please visit the pages of spring starter articles.
Marine Lights are used for the illumination of various types of boats, vessels，yachts and much more ships. They mainly include navigation signal light, fluorescent light, incandescent Light, explosion-proof light, searchlight, etc. With years of experiences in the marine industry, YSmarines provides a wide variety of marine lighting products with superb quality and cheap prices. Except for the explosion-proof light, spotlight, signal light, which are commonly used, YSmarines also offers much more other marine lights which are also needed to meet different requirements of customers, such as chart light, LED exit light, fluorescent pendant light, ceiling light and so on.
JCY24-2, JCY44-2 Type Marine Fluorescent Pendant Light
The fluorescent pendant light can be widely used for dry cabins, such as the seaman's cabin, restroom, dining room, cab, operator's room, engine room, splash-proof light etc. The body is made of galvanized steel or stainless steel, coated Inside and outside with acid-proof polyester powder. The luminaire has a hinged gear tray to simplify electrical connection and maintenance. The cable outside diameter is Ø10~Ø14mm. It's a recessed type, fixed on the top of the tank and also can be fixed to the beam.
Features:
1. The shell adopts a good quality steel plate tensioned, the lampshade adopts the injection of PC, and it has the seal structure.
2. In order to prevent electric shocking, lamp internal and external terminals equipped with tag.
3. Plug-in type lamp holder, equipped wiring terminal inside, convenient to connect.
4. The lamp equipped B15 lamp holder, used for 24V/15W emergency bulb, the edge of lampshade marks the marking remark clear that needs the emergency device when order.
5. Equipped compensating capacitance inside the lamp, also it has a good effect of start.
6. The environmental temperature for work is -30℃~+55℃.
JPY201-2, JPY202-2 Type Marine Fluorescent Ceiling Light With Battery
The fluorescent ceiling light has a battery. It is suitable for illumination for dry compartments of all types of vessels, such as living cabin crew and passengers, lounges, dining room, cab, telegraph room and other places. The lampshade adopts milky white polycarbonate by injection moulding, non-dis-coloring, good toughness, softness rays and excellent transparency. The configured compensating capacitors are in inside of light to improve the power factor and reduce losses.
Features:
1. Bulb emergency, lamp holder G13, Voltage: 24V, Power:8W~15W.
2. Tube emergency (Single tube), voltage: 220V, Power: 20W.
3. The edge of the lampshade marks the marking, the time of automatic emergency illumination is not less than 180min.
JPY27-2L, JPY47-2L Type LED Marine Ceiling Light
The marine ceiling light is equipped with LED light source and is applicable in general cabin or inner aisles of ships, such as living compartment, restaurant, cab, and wireless cabin etc. The enclosure of the lamp is made of high-quality steel plate. The good LED lamp has high light efficiency and environmental protection with the working life of over 50,000 hours.
Features:
1. The installation way of the light is recessed-type, compact structure and delicacy appearance.
2. The lampshade is made of good quality organic, not discolor, fine toughness, softness ray.
3. The LED starter has stabled components to assure that the circuit has a long lifetime, and it has a protection for the short circuit and overload, to assure that the LED light for a long term.
4. The lamp equipped B15 lamp holder, used for 24V/3W emergency bulb, the edge of lampshade marks the marking remark clear that needs the emergency device when order.
YSmarines offers marine fluorescent light for sale with high luminous efficiency, the feature of colour rendering, reasonable configuration, unidirectional lighting, etc.