4results about How to "Block the flow" patented technology

This invention belongs to the field of underground mining, specifically relating to a method for recovering high-grade residual ore under loose rock cover. The method includes the following steps: S1: Constructing a grouting tunnel in the upper middle section of the residual ore pile at the bottom of the stope, adjacent to the intact ore body of a collapsed stope. This grouting tunnel serves as the construction site for grouting in the collapsed area. This method for recovering high-grade residual ore under loose rock cover effectively addresses the technical problem of ore recovery being impossible due to the collapse of the upper rock mass by constructing a concrete-loose rock mass hybrid structure through grouting. Through theoretical calculations, the strength and thickness of the hybrid structure are ensured to impede rock flow, allowing the ore recovery process to break free from dependence on the stability of the rock mass itself. This enables direct recovery of high-grade ore under loose cover conditions, effectively addressing the recovery limitations faced by traditional methods in severely collapsed stopes.

The utility model discloses a kind of orthognathus postoperative self-help adjustment formula feeding devices, belong to eating auxiliary device technical field, including food storage box, the bottom of food storage box is connected with eating tube, flow rate regulator is arranged on eating tube, the end portion of eating tube away from food storage box is detachably provided with eating suction nozzle, fixed unit for fixing eating suction nozzle and patient mouth is arranged on eating suction nozzle.The utility model can solve the technical problem that the existing eating auxiliary device needs artificial holding bottle body and repeatedly extruding bottle body, to suck food so as to patient eating, not only inconvenient to hold, and it is laborious to operate, and it is not convenient to control eating speed and eating amount, and technical effect that it is easy to obtain operation labor-saving, it is convenient for patient to control eating speed and eating amount.

The utility model discloses a sand barrier structure for mobile sand land management relates to sand barrier technical field, including sand layer, the sand layer is laid with cover layer on sand blocking layer, and the cover layer is laid with pressure cover layer on sand blocking layer, a plurality of support columns, a plurality of support columns are arranged at intervals, and the bottom end of every support column is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface

The utility model relates to a quick -setting cement production equipment, concretely is a concrete mixing box of preventing quick -setting cement block, to solve the technical problem that cement slurry is easy to block the support end of stirring shaft and lead to the jamming of stirring shaft in the process of discharging that quick -setting cement, sand and gravel, mixed material etc. are mixed and output in the existing concrete mixing box, the utility model discloses a box body, stirring shaft and sealing device, sealing device includes wear -resistant bottom plate, spacer ring, inner sealing plate and seal ring, wear -resistant bottom plate, spacer ring, inner sealing plate are connected in turn and are pressed tightly in the inside of box body front end board, wear -resistant bottom plate is set in the outside of stirring shaft medium diameter section, spacer ring and inner sealing plate all are set in the outside of stirring shaft large diameter section, and wear -resistant bottom plate, inner sealing plate form clearance seal between medium diameter section and large diameter section respectively, inner sealing plate, wear -resistant bottom plate, large diameter section and spacer ring form a passageway, and seal ring sets up in the passageway, and its inner periphery and large diameter section between seal solid link, and one side is pressed tightly on wear -resistant bottom plate.