The present invention discloses a method and corresponding apparatus for separating lightweight materials from fabric pieces. The method comprises the steps of (a) introducing fabric pieces into a tumbling means having perforations for lightweight materials in the fabric pieces to be removed therethrough and coupled to a first source of negative pressure; (b) tumbling the fabric pieces in the tumbling means and simultaneously applying negative pressure from the first source of negative pressure to the tumbling means for removing lightweight particles detached from the tumbling fabric pieces from the tumbling means; (c) transporting the fabric pieces from the tumbling means to a top of a vertical separation chamber; and (d) applying forced air to the fabric pieces as the fabric pieces drop from the top to bottom of the vertical separation chamber by gravity for separating the lightweight materials from the fabric pieces, and simultaneously applying negative pressure from a second source of negative pressure to the vertical separation chamber to remove the lightweight materials separated from the fabric pieces from the vertical separation chamber; repeating this step until the fabric pieces are substantially cleared of any lightweight materials. The apparatus comprises a tumbling means and a vertical separation chamber.

A rotary milling system includes a rotatable cylinder, a discharge grate, a movable flap valve into and out of engagement with the grate, a discharge housing surrounding the grate, and a conveying pipe extending from the discharge housing. The cylinder can include grinding media for abrading a product when the cylinder is rotated. The product can be in either a dry form or within a liquid medium. Upon conclusion of the milling, the flap valve can be opened to allow the milled product to pass through the grate and into the discharge housing. A negative pressure can be applied to draw the milled product through the conveying pipe into a separator tank.

A lead needle and lead slime separator for treating thin lead grid of waste lead-acid storage battery, includes: a barrel body, corrosion-resistant and wear-resistant balls, a feed device, a bracket device, a discharge device and a driver. A feed hole is arranged at one end of the barrel body, a discharge port is arranged at the other end of the barrel body. The feed device is mounted at the feed hole, and the discharge device is mounted at the discharge hole. The bracket device is connected to the barrel body, the driver is connected to the barrel body. The corrosion-resistant and wear-resistant balls are arranged in the barrel body. The separator can make the thin lead grid separation complete, clean and impurity-free. It does not need to be melted at high temperature in the melting furnace.

Apparatus for micronizing an inorganic salt, having a receiving vessel for receiving the salt to be micronized in an interior of the receiving vessel; a grinding unit for comminuting the salt located in the receiving vessel and for forming micronized salt particles; an ascending pipe, which is connected fluidically to the receiving vessel and transports the micronized salt particles, wherein one end of the ascending pipe has an outlet orifice through which the micronized salt particles can flow out of the apparatus; a fan; and a housing with an air outlet and an air duct connecting the fan to the air outlet, wherein the air duct is separated by at least one wall from the interior of the receiving vessel, such that the air stream generated by the fan does not flow through the interior of the receiving vessel.

A lead needle and lead slime separator for treating thin lead grid of waste lead-acid storage battery, includes: a barrel body, corrosion-resistant and wear-resistant balls, a feed device, a bracket device, a discharge device and a driver. A feed hole is arranged at one end of the barrel body, a discharge port is arranged at the other end of the barrel body. The feed device is mounted at the feed hole, and the discharge device is mounted at the discharge hole. The bracket device is connected to the barrel body, the driver is connected to the barrel body. The corrosion-resistant and wear-resistant balls are arranged in the barrel body. The separator can make the thin lead grid separation complete, clean and impurity-free. It does not need to be melted at high temperature in the melting furnace.

An agitator ball mill with a fluid circuit, which includes a grinding container and a casing container disposed around the latter uniformly spaced apart axially with a cavity formed between the containers. The fluid circuit is led at at least one flange through at least one flange lead-through introduced there, wherein a first opening of the at least one flange lead-through is constituted in a side wall of the corresponding flange lying orthogonal to the outer surface of the casing container.

An apparatus (10) for micronizing an inorganic salt, having a receiving vessel (14) for receiving the salt (46) to be micronized in an interior of the receiving vessel (14); a grinding unit (22) for comminuting the salt (46) to be micronized located in the receiving vessel (14) and for forming micronized salt particles (54); an ascending pipe (24), which is connected fluidically to the receiving vessel (14) and serves to transport the micronized salt particles (54), wherein one end of the ascending pipe (24) has an outlet orifice (38) through which the micronized salt particles (54) can flow out of the apparatus (10); a fan (26) for generating an air stream (40); and a housing (12) with an air outlet (44) and an air duct (42) connecting the fan (26) to the air outlet (44), wherein the air duct (42) is separated by at least one wall from the interior of the receiving vessel (14), such that the air stream (40) generated by the fan (26) does not flow through the interior of the receiving vessel (14), and wherein the air outlet (44) at least partly surrounds the ascending pipe (24) in a region of the outlet orifice (38).

An ecocompatible container for recycling cigarette butts is constituted by a cylinder including an openable upper cover, a base and an intermediate portion which houses a common hopper in external communication with ashtrays through which the cigarette butts are introduced, wherein via the hopper, the butts are introduced into a screening basket with balls, in which the rotation of the screening basket allows, by mutual impact and friction of the balls, crushing the cigarette butts and hence effectively separating the organic portion, i.e. the filter paper and the residual tobacco that fall by gravity through holes into an underlying suitable collection container, from the resistant, fibrous portion constituted only by the filters of the cigarettes which, when sucked by a small suction motor, will fall into an underlying filter accumulation chamber.