2 results about "Free medium" patented technology

The utility model discloses a hole distribution structure in an inclined thick and large ore body non-cutting well medium-length hole groove broaching method. The hole distribution structure comprises medium-length holes and shallow holes, wherein the medium-length holes are constructed from a rock drilling gate way to a hanging wall boundary line and arranged in a fan shape, and the shallow holes are formed in the two sides of the rock drilling gate way. The first-row medium-length hole row surface is perpendicular to the ore body hanging wall boundary line, and the included angles between the subsequent row surfaces and the horizontal plane are increased row by row; the distance between the hole bottom of the medium-length hole and the bottom face of the drilling gate way is larger than 1.2 m, and the medium-length hole covers the area 1.2 m above the bottom face of the drilling gate way; the row spacing of the medium-length holes is 1.2-1.5 m, and the hole bottom spacing is 1.3-1.5 times of the row spacing; the shallow hole is arranged below the hole bottom of the medium-length hole. The horizontal dip angle of the medium-length hole row face is matched with the dip angle of the ore body, a transverse roadway can be cut to serve as an initial blasting compensation space, and cutting grooves are formed through successive extrusion blasting. Shallow holes are formed in the two sides of the rock drilling roadway, and multi-time medium-length hole and shallow hole collaborative millisecond blasting can be carried out. The arrangement of the shallow holes can enlarge the compensation space of medium-length hole blasting on the two sides of the rock drilling gate way.

Beverage container (1) for receiving and preparing liquids and powdered substances, comprising: - a container body (2) having at a first end a drinking opening (3) with a first inner diameter, which can be closed by an upper closure (4); - at a second end opposite the first end an opening (5) with a second inner diameter which is larger than the first inner diameter of the drinking opening (3); - a lower closure (6) which cooperates with the opening (5), forms the bottom of the container body (2) when assembled and is completely removable from the container body (2); - wherein all surfaces of the upper closure (4) and the lower closure (6) which come into contact with the contents during intended use are made of a non-plastic-based material.