According to the present invention, when recovering coating film debris, ground materials and the like generated because of blasting work performed within a petroleum tank, objects to be recovered existing at multiple spots in a broad area in which recovery is to be conducted such as within a tank, within a factory, and within a scaffold are efficiently ejected outside the area in which recovery is to be conducted, and recovered. The present invention has: a main flow pipe 10 that connects an area 100 in which recovery is to be conducted and an area 200 in which recovery is not to be conducted; multiple branch flow pipes 20 of which one ends are connected to the main flow pipe 10; and an ejector 30 provided part way through each of the multiple branch flow pipes 20. A configuration is adopted at a flow merging section 40 between the main flow pipe 10 and each of the branch flow pipes 20 such that a rotational flow is generated due to incoming flow from each of the branch flow pipes 20. Objects to be recovered existing at multiple spots within the area 100 in which recovery is to be conducted are suctioned from the other ends of the multiple branch flow pipes 20 by suction force generated by the ejectors 30, ejected to the area 200 in which recovery is not to be conducted via the main flow pipe 10, and recovered.
A mounting bracket (1) comprises a base end member (10) that is inserted from a joint portion (203) and engages with the back side of an exterior wall, and an extension member (13) that engages with an end face of the exterior wall member on the joint portion side.
E04G 5/04 - Means for fastening, supporting, or bracing scaffolds on or against building constructions
3.
Powder and granular material separation processing device, powder and granular material separation processing method, and powder and granular material separation and collection processing system
To introduce a mixture to be processed, in which powder and granular material with relatively large specific gravity and hardness and accompanying lightweight foreign substances are mixed together, inside a system and separate the same by a dry method.
Disclosed is a powder and granular material separation processing device X that is connected to an external suction machine such as a dust collection device and an electric vacuum cleaner, introduces by suction a mixture to be processed into a separation processing container 1, and discharges lightweight foreign substances to the outside of a system while collecting powder and granular material inside the system. The separation processing container 1 has a suction introduction tube 2 that is attached and sealed as the upper part structure of a hopper tank 4 that collects and stores the powder and granular material and receives the mixture to be processed on the circumferential surface thereof, and a suction discharge tube 3 that is connected to an external suction machine on the upper surface thereof. In addition, the separation processing container 1 has a separation cone 11 with a funnel-shaped bottom surface and a cylindrical opening 13 that hangs in a protruding shape downward from the tip part of the separation cone 11 and of which the opening diameter thereof is reduced stepwise to have multiple steps. The suction discharge tube 3 has a multiple tube configuration at the tip part thereof in which each tube is given a small diameter corresponding to each opening diameter of the cylindrical opening 13 to be loosely inserted and face the tip part of an opening.
B07B 4/00 - Separating solids from solids by subjecting their mixture to gas currents
B07B 7/00 - Selective separation of solid materials carried by, or dispersed in, gas currents
B07B 4/04 - Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
B07B 4/02 - Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
B07B 7/01 - Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
B07B 7/04 - Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against baffle separators
4.
POWDER AND GRANULAR MATERIAL SEPARATION PROCESSING DEVICE, POWDER AND GRANULAR MATERIAL SEPARATION PROCESSING METHOD, AND POWDER AND GRANULAR MATERIAL SEPARATION AND RECOVERY PROCESSING SYSTEM
[Purpose] To introduce a mixture to be processed, in which powder and granular material with comparatively large specific gravity and hardness and lightweight foreign substances that come along with the same have been mixed, into a system and separate the same by a dry method. [Solution] A powder and granular material separation processing device (X) wherein a dust collection device, electric vacuum cleaner, or other external suction machine is connected thereto, and a mixture to be processed is introduced by suction to a separation processing vessel (1) and, along with recovering the powder and granular material within the system, lightweight foreign substances are discharged outside of the system. The separation processing vessel (1) is provided with a suction introduction tube (2) that receives the mixture to be processed on the circumferential surface and is attached and sealed as an upper part structure of a hopper tank (4) that collects and stores the powder and granular material, and a suction discharge tube (3) that is connected to the external suction machine is provided on the upper surface of the vessel. In addition, the separation processing vessel (1) has a separation cone (11), the bottom surface of which is formed into a funnel shape, and a cylindrical opening (13) that hangs in a protruding shape downward from the tip part of the separation cone (11) and for which the opening diameter thereof is formed with a stepwise reduction. The tip part of the suction discharge tube (3) has a multiple pipe constitution, and each pipe is given a pipe diameter smaller than the opening diameter for the cylindrical opening (13), is loosely inserted, and approaches the tip part of the opening.
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