Yanshi 1m steel belt corrugated spiral pipe sewage pipe manufacture

  So far, China's rainwater and sewage discharge is still relatively backward
Many cities are still the kind of old cement pipes
When the rainstorm comes, these cities will go boating and forklift instead of taxis
Therefore, we should increase the introduction of PE steel belt reinforced bellows
This pipe has long service life, convenient construction, short construction period and strong self-lubricating, which has obvious advantages in municipal rainwater discharge
Pipe specification: steel belt reinforced polyethylene PE spiral corrugated pipe specification: 300mm-3000mm, pipe length: 6m, 9m and 12m Production process of steel belt reinforced PE spiral bellows: first wind a solid wall PE inner pipe on the host, and then fold it into an inverted & ldquo; U” The steel plate reinforcement coated with high-performance adhesive resin is placed at the design position of the solid wall PE inner layer pipe, and then a PE outer layer with the same waveform as the steel plate reinforcement is extruded from the outside to obtain the finished pipe after shaping, shaping, cooling and cutting
1) Steel strip coating process 2) winding forming process of sn12 steel strip reinforced PE spiral bellows Xiang Cheng connection method of sn12 steel strip reinforced PE spiral bellows 1 Extrusion hot melt welding 2 3
Connection of clamp encryption sealing belt Heat shrinkable sleeve (belt) connection 4 Electrothermal melting belt connection Construction of steel belt reinforced PE spiral bellows: I
embedding: before the subgrade unit constructs the subbase, the horizontal median drainage pipe shall be embedded
2、 Slotting: manual slotting shall be carried out according to the drawing design and the design pile number and position measured by the surveyor
3、 Connecting pipe: the two end interfaces of each sn12 steel belt reinforced PE spiral bellows must be tightened after being covered with rubber rings to avoid water leakage
4、 Lower the pipe: after cleaning the bottom of the groove and connecting the pipe according to the length of the groove, put the pipe into the groove, and tie the mouth with sack cloth at the end on the side of the central separation belt to prevent sundries from entering the pipe and causing blockage
5、 Backfilling: select the excavated fine-grained soil for backfilling or use sandy soil for backfilling
The large stones must be removed and tamped manually after backfilling
The top surface of the backfill shall not be higher than the roadbed and shall be 1 ~ 2 cm lower than the surface of the roadbed
VI
cleaning: the remaining soil after backfilling shall be removed from the site immediately and the road surface shall be cleaned
The remaining soil of sn12 steel belt reinforced PE spiral bellows shall be unloaded in the borrow area and other places, and shall not be unloaded on the road at will
Requirement 1) applicable to medium with long-term temperature not greater than 45 ℃
2) Buried plastic drainage pipeline should be designed according to the theory of flexible pipe (pipe and soil work together)
At the same time, in the design state, the change in the vertical direction of the pipe shall not be greater than 5% of the pipe diameter
3) The selection of pipe ring stiffness is an important index in the design of plastic pipeline
Therefore, it should be determined from the comprehensive consideration of pipeline buried depth, ground load, nature and compaction coefficient of trench backfill and construction load
It is uneconomical to blindly adopt high ring stiffness
For the pipeline with buried depth less than 1
0m under the carriageway, the influence of pipeline deformation on the pavement shall also be considered
4) The inner surface of the appearance pipe shall be flat, and the external waveform shall be regular; The inner and outer walls of the pipe shall be free of bubbles and visible impurities, and the fusion joint shall not be separated
The section of the pipe after cutting shall be trimmed without burrs
5) The thickness of the anti-corrosion layer is the adhesive resin and the outer polyethylene as the anti-corrosion layer of the steel belt
The difficulty of popularizing the trenchless construction technology of HDPE steel belt bellows lies in the high construction cost, which makes many small and medium-sized cities in China stop
In fact, considering many factors such as transportation, the danger of surrounding pipeline excavation and the quality of life of citizens, the cost of trenchless construction can still be accepted by most people
The technical cost of trenchless construction is that most of the equipment and materials depend on foreign imports, resulting in an increase in the cost
If the domestic trenchless construction technology can quickly practice and develop this construction equipment, the construction cost will be correspondingly reduced
It is conceivable that in the near future, trenchless construction technology will be applied to various municipal pipeline construction, and will be recognized by major pipeline construction teams
Contact: manager Sun landline: 0379-65227507 , QQ:2021704852  Details: www
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