4 results about "Diversion dam" patented technology

The application discloses a method for discharging and segmentally depositing and stacking of tailings of tin polymetallic ore dressing, which comprises the following steps: (1) conveying the tailings of the ore dressing plant to a tailings pond, and discharging the tailings alternately from two ends according to the actual situation of the rising and subsidence of the site beach; (2) setting a diversion dam at a position away from the discharging point by a certain distance, and effectively prolonging the settling time of fine particles under the buffering of the multiple diversion dams; and (3) adding a combined medicament to the tailings wastewater, controlling the pH value of the tailings wastewater after the combined medicament is added, and making the water quality of the tailings wastewater in the wastewater settling area clear after treatment, so that subsequent backwater utilization is realized. The segmental stacking method prolongs the settling time of the tailings, guarantees the water quality of the backwater utilization, reduces the wastewater treatment difficulty, and effectively reduces the wastewater treatment cost.

The utility model relates to power transmission engineering technical field especially relates to a flood control diversion dam of power transmission line tower foundation, it includes: first diversion component and second diversion component, the cross section of first diversion component is single concave arc curve quadrilateral with vertical side, the end surface of first diversion component has predetermined angle of clamping with the bottom edge of first diversion component, the end surface of first diversion component is provided with dovetail connecting groove, the cross section of second diversion component is same with the cross section of first diversion component, the end surface of second diversion component is provided with dovetail connecting convex, the end surface of second diversion component is pasted the end surface of first diversion component, and is limited through dovetail connecting structure, first diversion component is connected with second diversion component, and it is '' V '' type distribution. Adopt the utility model can solve the problem of the existing diversion dam upper part overflow and both sides around seepage, and can take the prefabricated component, and the on -the -spot splicing assembly mode is installed, and the construction is convenient.

The invention discloses a water-stone separation gallery for debris flow prevention and control, which comprises a drainage dam, a water-stone separation gallery and a drainage groove, and the water-stone separation gallery comprises a framework, a coarse-hole protective net and a side wall; a buffer filter layer is laid at the bottom of the drainage groove, and a fine hole protective net which is detachably installed on the side wall through a rivet structure is arranged above the buffer filter layer. The device has the functions that the device utilizes the characteristics of fluid, performs multi-stage filtration, screening and energy dissipation on water-soil and water-stone two-phase flow of debris flow through the whole water-stone separation gallery for preventing and treating debris flow, and controls starting of material sources from the source, so that the debris flow is converted into mud-sand water flow, the occurrence of the debris flow can be fundamentally avoided, and the service life of the debris flow is prolonged. Compared with the prior art, the control effect is remarkable, meanwhile, compared with the prior art, the construction cost is greatly reduced, and the gallery has sufficient pressure resistance, shear resistance and block stone impact resistance and can be guaranteed to have sufficient stability.

The utility model provides an ecological ditch of initial rainwater diversion purification, including the sedimentation unit, initial rainwater diversion unit and primary purification unit that are in series in proper order, the sedimentation unit includes the sedimentation area, and the upper portion of the side wall of sedimentation area is equipped with the water inlet of sedimentation area, and the bottom of sedimentation area is equipped with the sludge discharge mechanism, the initial rainwater diversion unit includes the diversion dam, and the diversion dam from bottom to top includes the sedimentation area limiting platform, filler filter area, rainwater discharge area and flood discharge area in proper order, and rainwater discharge area and flood discharge area are connected with rain flood discharge channel, the primary purification unit includes the primary treatment area, and the primary treatment area is communicated with the sedimentation area through filler filter area, and the water flow direction of primary treatment area is equipped with the water retaining wall of height not less than diversion dam, and the both sides of diversion dam are adjacent with sedimentation area and primary treatment area respectively, through the reasonable setting of structure, the effective diversion of initial rainwater and the efficient exclusion of middle and later period rainwater are realized, the retention time of initial rainwater in ecological ditch is prolonged, and the purification effect of the pollutants in rainwater is improved.