The invention discloses a recycling device for carbon powder. The recycling device for the carbon powder comprises an adsorption tower (1), an analysis tower (2), a first active carbon conveyor (3), asecond active carbon conveyor (4), a vibrating screen (5) or a multi-stage or multi-layer type vibrating screen (C) which is positioned below a discharge hole of the analysis tower (2) or at the downstream of the analysis tower (2), and a heating furnace (7), wherein the analysis tower (2) is provided with a heating section (201) and a cooling section (202); a hot air outlet of the heating furnace (7) is connected with a hot air inlet of the heating section (201) of the analysis tower (2) through a hot air pipeline (L3); an air outlet of the heating section (201) of the analysis tower (2) isconnected to a circulating and cooling air inlet of the heating furnace (7) through a circulating and cooling air pipeline (L4); screened fine carbon powder of the vibrating screen (5) is used as a fuel of the heating furnace (7); and fine active carbon particles screened out by the multi-stage or multi-layer type vibrating screen (C) are conveyed into a pelletizing system (D) for being pelletizedor conveyed into a wastewater purifying system for adsorbing waste acid.

Recycling device for carbon powder

The present invention is directed to an applicator having an agricultural product conveying system which transfers particulate material from one or more source containers to application equipment on demand, and meters the material at the application equipment. The conveying system includes an inline metering system including a number of metering devices associated with each compartment of a particulate material tank on the applicator to meter the particulate material disposed within each compartment. The individual metering devices include gates to initially enable the particulate material from a compartment to enter the metering device, and a rotary metering shaft to meter the flow of the particulate material into the conduits while limiting the passage of pressurized air through the metering device and into the compartment. The individual metering devices also include individual motors to control the operation of the metering devices independently from one another that can allow with sectional control and turning compensation.

Metering device for an agricultural product delivery system

Method of delivering a number of agricultural products

For use with a tunnelling shield in which an excavating tool operates within a substantially sealed-off and pressurized region, a spoil-removal device for extracting spoil from the pressurized region comprises a cylindrical chamber which has an inlet port open to the pressurized region and a discharge port which is open to a position outside said region and a multi-compartment rotary member adapted to rotate in said chamber in sealed co-operation therewith, each compartment of the rotary member being arranged to pass said inlet port and said discharge port in turn and being arranged not to be open to both ports at the same time, each compartment being arranged to receive a charge of solid spoil when the compartment reaches the inlet port, the amount of the charge being governed by the angle of slide of the spoil, and to deliver the charge to said position outside the excavating region when the compartment reaches the discharge port, substantially each part of the compartment surface which supports the charge when in the vicinity of the discharge port being arranged to attain an angle to the horizontal which is generally in excess of said sliding angle of the spoil, whereby the compartment tends to empty itself while the compartment is open to the discharge port. The axis of rotation of the rotary member may be at right angles or parallel to the direction of the longitudinal axis of the tunnel being excavated. The device may include a receiver for receiving and supporting solid spoil in front of said inlet port.

Spoil removal devices for tunnelling machines

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Spoil removal devices for tunnelling machines