Current operation status of using 320 # gear oil on the hot-rolled wire production line, a cooperative customer:
| Oils | 320 # gear oil |
| Fuel tank storage capacity/ton | 12-15 (under normal circumstances) is currently using 320 # gear oil to replenish the oil in the tank |
| Equipment operation status | Intermittent operation, running time: am8:00-pm20:00 |
| Water content in lubricating oil | The system continuously receives water, with a moisture content of up to 26% |
Purification mode and objectives:
| Purification mode | On-line purification |
| moisture content | ＜1.0% |
Principle of removing a large amount of water:
The coalescence filter element in our company’s coalescence system adopts a unique polar molecular structure. Free water and emulsified water in the oil coalesce into larger water droplets after passing through the filter element, which settle into the water storage tank by gravity. The different affinities of the surface of the polymer material for oil and water are used to separate emulsified water and free water in the oil liquid; The interaction between water droplets and the surface of coalescence materials includes interception, Brownian diffusion, and inertial collision. When water droplets come into contact with the surface of coalescence materials, they adhere to the surface and coalesce to a certain size. When they reach a certain size, they detach from the surface of coalescence materials under the combined action of oil drag and droplet gravity. The separation filter element of the separation system is supported by special hydrophobic materials. When the oil passes through the filter element, water droplets are trapped on the outer surface of the filter element and coalesce until they settle into the water storage tank due to gravity.
The high pollution lubricating oil pretreatment equipment is a product designed and developed by technical personnel of Qingdao Haina Energy Environmental Protection Technology Development Co., Ltd., with independent intellectual property rights. This product is mainly used for pretreatment operations of oil products with moisture content>1.0%, high mechanical impurity content, and severe pollution. We plan to add this pre-treatment equipment to the front-end of the high pollution lubricating oil purification process, which can remove most of the moisture and impurities in the high pollution lubricating oil through the pre-treatment equipment, thereby reducing the pressure of subsequent processes and achieving the goal of cost reduction and efficiency improvement.
Equipment features:
- Low purification cost – the filter cartridges at all levels have a large amount of dirt and a small consumption of consumables;
- Key indicator achievement – capable of removing moisture and mechanical impurities from oil products;
- High dehydration efficiency. The equipment dehydration method adopts a combination of agglomeration separation and centrifugation, which can dehydrate (water content 1.0%~30.0%) with an accuracy of less than 1.0%;
- Equipment interlock protection, equipped with overload protection, phase sequence protection, overpressure alarm shutdown and other protections, ensures the long-term reliable operation of the whole machine;
- Has a certain mechanical impurity removal function, reducing the wear and tear caused by lubricating oil on equipment;
- Portable. The equipment adopts a pry mounted device, which is easy to operate and transport;
- Easy to operate – the device adopts a PLC control system, which can be directly started and terminated on the control panel;
- Good comprehensive performance – This purification equipment has the advantages of easy operation, flexible mobility, long maintenance intervals, low overall operating costs, and high oil purification efficiency.
Equipment consumables configuration and replacement cycle:
| Serial Number | Consumable | Quantity of configuration | Replacement cycle |
| 1 | High capacity dirt filter elementφ273 | 8individual | Once/(1-3) months |
| 2 | 0.5μmDouble filter bag | 1individual | Once/(1-3) months |
| 3 | Separate filter element | 6individual | Once per year |
Reduce costs and increase efficiency for customers:
- Reduce maintenance costs and unplanned downtime costs by 300000 yuan per year;
- Reduce the procurement cost of new oil by 12 tons * 3 times * 15000 yuan=54000 yuan/year;
