Final cooling and crude benzene section: The main equipment in this section includes final cooling tower, benzene washing tower, ammonia washing tower, benzene removal tower, regenerator, heat exchanger, tube furnace, condenser, oil-water separator, product intermediate tank, and crude benzene storage tank.

A、 There are many equipment and complex pipelines in this section. Before installation, it is necessary to carry out weld penetration, pressure testing, and anti-corrosion work.

B、 During installation, the flatness, verticality, and elevation should be controlled according to the drawing requirements. Acceptance by relevant personnel and visa of acceptance documents.

(4) General rules for production and installation operations:

When making containers such as towers, tanks, and tanks, it is not only necessary to ensure the external dimensions, but also to require the equipment to have a smooth and even surface, uniform curvature, and accurate pipe opening positions.

The deviation is strictly controlled within the national standard range, and the quality of the weld seam is strictly controlled, without defects such as sand holes, pores, slag inclusions, cracks, etc. According to the design requirements, perform corresponding levels of weld inspections separately.

B、 When welding non-standard equipment outdoors, it is necessary to strictly follow the specifications. When the wind speed is greater than 25m/s and the temperature is below -5 ℃, protective measures must be taken to ensure the welding quality

C、 After the production of non-standard equipment, especially the pressure vessel core, it must undergo pressure testing and air tightness testing before installation. After pressure testing and installation in place, internal cleaning and water discharge testing are very important.

Only when the equipment is inspected by a dedicated person and confirmed to be free of debris (including small welding slag, welding rods, etc.), can the manhole be closed. The purpose of draining the water from the equipment is to avoid unnecessary damage to the equipment in frost weather conditions.

D、 During the installation of containers such as towers, tanks, and tanks, strict adherence to the various regulations during the lifting process will be followed to ensure the stability and stiffness requirements of the components during the lifting process, as well as the flatness and verticality requirements after positioning, and to strictly control the line dimensions in all directions.

Our company provides engineering design, equipment supply, and installation services for 600000 to 1.2 million tons/year coke ovens (including cold drum section, desulfurization section, sulfur ammonia section, and benzene washing section).