Sieve cleaners (1) for cleaning a sieve surface (2) of a sieve box (3), which sieve box contains a sieve surface (2) and bottom (4). The sieve cleaners (1) contain a wobble foot (5), which extends along a main axis (A) of the sieve cleaner (1) and is designed such that the wobble foot can be placed onto the sieve bottom (4) and the sieve cleaner (1) can be tipped about the wobble foot (5). At least one cleaning element (6) has a cleaning region (7), and each cleaning region (7) has a plurality of cleaning surfaces (8) for cleaning the sieve surface (2). The cleaning surfaces (8) are each designed for at least linear contact with the sieve surface (2) and are separated from one another by slots (9) formed in the cleaning region (7). Sieve units and methods for upgrading or converting a sieve box are also disclosed.

A drum (100) for sorting objects is provided. The drum has a cylindrical shape, and said drum (100) comprises a cylindrical body (101), with an inner and an outer envelope surface. A plurality of pockets (104) are arranged on the inner envelope surface of the cylindrical body (101), and said pockets (104) are provided with openings (105) opening up into the outer envelope surface. At least one groove (106) is arranged on the outer envelope surface, said groove (105) interconnecting at least two openings (105). A machine (1000) comprising such a drum (100) and a method for manufacturing such drum (100) are also provided.

A separating device (100) for separating insects (204) from a rearing-based material (202, 203) includes a sieve part (110) and a moving part (280) for moving the sieve part in order to sieve an unseparated material (201). The unseparated material includes the insects and the rearing-based material. The sieve part includes an cylindrical sieve rotor (110) and the moving part is adapted to rotate the rotor in order to separate the insects from the rearing-based material. The rotor is inclined so that its lower end (112) is lower than its upper end (111).

For use in sieving machines where pluralities of products are classified by sieving, a sieving box is provided having at least one sieve frame having edge profiles whereon a sieve is fixed and having a brush pan with a brush movement surface and at least one product passage opening. At least one support frame is provided having at least one output module having at least one module passage opening in a manner matching with the product passage opening provided on the brush pan and at least one closing rod by being positioned between the sieve frame and at least one brush pan obtained by bending at least one bendable plate from the bending lines.

[Object] To provide a building material manufacturing apparatus that is suitable for suppressing clogging of a screen that screens a building raw material. [Solution] A building material manufacturing apparatus X1 includes at least a screen part 10 and a cleaning mechanism part 40. The screen part 10 includes at least one screen sheet 12 that has an inclination and that has a screen mesh. The cleaning mechanism part 40 includes a scraping part 40a. When the apparatus operates in a building material manufacturing mode in which a building raw material M is supplied to the screen sheet 12 and the screen sheet 12 is performing a wave motion, the scraping part 40a is separated from the screen sheet 12, and, when the apparatus operates in a cleaning mode in which the building raw material M is not supplied to the screen sheet 12 and the screen sheet 12 is not performing a wave motion, the scraping part 40a rotates in contact with the screen sheet 12.

A trommel apparatus has a cylindrical body configured for rotational movement and a plurality of elongated holes or slots formed in the cylindrical body. The trommel apparatus can be used to sort pieces of automobile shredder residue.