Dismantling of AT-9 and ELOU-9 units of production No. 1 of JSC “Gazpromneft-ONPZ”.
In 2019, within the framework of the contract between LLC Likvidator and JSC Gazpromneft-ONPZ, in order to free up the area for the construction of a modern ecological complex for deep oil refining, dismantling of AT-9 and ELOU-9 units of production No. 1 at the operating oil refinery was carried out JSC Gazpromneft-ONPZ in Omsk.
Practical benefit for the customer – freeing up the area for the construction of a modern ecological complex for deep oil refining.
Volumes of dismantled buildings and structures:
1. Column and tank equipment of AT-9 and ELOU-9 units – 2525.4 t (preliminary evaporator K-1 35.6 m high and weighing 106.73 t, atmospheric distillation column K-2 52.5 m high and weighing 246 t, stripping column K- 3 with a height of 30.46 m and a mass of 15.044 tons, a distillation column K-4 with a height of 36.4 m and a mass of 70.39 tons).
2. Technological pipelines with a diameter of 25mm to 820mm – 20980m.
3. Construction volume of dismantled buildings – 26,025m3 (hot pumping building – 10800m3, cold pumping building – 10800m3, fuel pumping building – 2400m3, TP-127a building – 2025m3)
4. Reinforced concrete foundations – 6655m3
5. Aluminum insulation – 25719.2 m2
6. Mineral wool insulation – 1998.36m3
Waste volume – 24250.36 tons (reinforced concrete – 16638.7 tons, scrap of ferrous metals – 3814 tons, aluminum – 44.58 tons, brickwork scrap – 3240 tons, construction waste – 388 tons, mineral wool – 1225.08 tons).
Key features of the project for the company and the customer:
1. Carrying out dismantling works at the operating oil refinery JSC “Gazpromneft-ONPZ”.
2. High risk of fire in process equipment and pipelines contaminated with oil products.
3. Dismantling of equipment and metal structures at a height of up to 52.5m.
4. Partial performance of works in a semi-mechanical way using electromechanical tools and special equipment for fireless cutting.
5. Manual method of disassembling and cutting technological equipment by types of metal (steel, aluminum, brass, cable products).
6. Sorting of all waste by types and fractions with the aim of further returning to the production cycle.
7. Carrying out work at a hazardous production facility in the conditions of the 3rd climatic zone.
More than 50 units of special equipment and equipment were used (Doosan 340 crawler excavators with attachments, a hydraulic hammer, hydraulic shears, a bucket – 7 units, a crane with a lifting capacity of 400 tons, a crane with a lifting capacity of 100 tons, a crane with a lifting capacity of 50 tons, cranes with a lifting capacity of 25 tons – 4 units, dump trucks -30 units ., a scrap truck with a grab – 3 units, a hydraulic lift with a boom reach of up to 35m, a fire truck, special equipment for fireless cutting.
The dismantling process consisted of six stages:
1. Dismantling of the aboveground part (equipment, pipelines, metal structures, buildings, and structures).
2. Dismantling of the underground part (tanks, pipelines, foundations).
3. Cleaning of metal structures from insulation.
4. Dismantling and cutting of technological equipment and pipelines by type of metal.
5. Sorting, loading and removal of construction waste for further disposal.
6. Backfilling with soil, vertical leveling of the territory.
The work was carried out under the direct control of the Customer’s management, the dismantling of the units was carried out in a short time with high quality, in strict accordance with the Customer’s requirements.
