FIELD: transportation.
SUBSTANCE: group of inventions relates to a method of conveying material in a pneumatic material conveying system, such as a waste conveying system, and to said pneumatic system. At that, the material transportation system comprises at least one material, in particular wastes, receiving station (60), material transportation pipe (100), which is made with possibility of connection with creation of intermediate communication with loading container of receiving station (60), and means for providing pressure drop and/or conveying air flow in pipe for transportation of material at least during transportation of material, wherein said means comprise at least one partial vacuum generator (125A, 125B). Material transportation system additionally contains at least one separator device (90A, 90B), in which the transported material is separated from the conveying air at the outlet end of the specified system. In the method, at the first stage, the material is transported from receiving station (60) to transporting pipe (100, 100A, 100B, 100C, 100D, 100E) with passage to at least one inner space (202, 202A, 202B) of intermediate container (200, 200A, 200B) located between receiving station (60) and separator (90A, 90B), by means of suction/pressure drop and/or transporting air flow created by said at least one partial vacuum generator (125A, 125B) for the first time period (t1). At the second step of the method, the material moved at the previous step into said at least one inner space (202, 202A, 202B) of intermediate container (200, 200A, 200B) is transported by means of suction/pressure drop and/or transporting air flow created by said at least one partial vacuum generator (125A, 125B) to separator (90A, 90B) for a second time period (t2). At the first stage of the method, the material is transported along section (100, 100A, 100B, 100C, 100D, 63) of the transporting pipe, which is located between receiving station (60) and intermediate container (200, 200A, 200B) in direction of material transportation and which has first nominal diameter (D1). From intermediate container (200, 200A, 200B) material is transported to separator (90A, 90B) along second section (105, 105A, 105B) of pipe, which has second nominal diameter (D2), and first nominal diameter (D1) of conveying pipe section (100, 100A, 100B, 100C, 100D, 63), located in front of intermediate container in material conveying direction, is larger than the second nominal diameter (D2) of the second section of the conveying pipe located between the intermediate container and the separating device.
EFFECT: provision of low level of pressure losses, optimization of energy consumption, compact dimensions of the system, as well as increase of throughput capacity of the material transportation system.
25 cl, 7 dwg
