Fiberboard or chipboard is made by first comminuting vegetable starting material in a first comminutor into a stream of loose plant particles with silicate particles. Then, in a first classifier silicate particles of a diameter of less than 50 μm are separated from the plant particles of the stream. The plant particles remaining in the stream are then glue-coated, and the stream is pressed into fiberboard or chipboard.

A device for separating light flaky cut rolled stems (CRSs) by a throwing roller is provided. The device includes a vertically provided separation bin, and a CRS guide device and a CRS distribution plate which are arranged in the separation bin. The present disclosure further provides a method for separating light flaky CRSs by using the device. The present disclosure achieves full separation of finished CRSs from light flaky CRSs. The device of the present disclosure is designed for the first time, and can be directly connected to a pneumatic CRS feeding and discharging section of a production line. The device of the present disclosure is compact and suitable for industrial production.

A device for separating light flaky cut rolled stems (CRSs) by a throwing roller is provided. The device includes a vertically provided separation bin, and a CRS guide device and a CRS distribution plate which are arranged in the separation bin. The present disclosure further provides a method for separating light flaky CRSs by using the device. The present disclosure achieves full separation of finished CRSs from light flaky CRSs. The device of the present disclosure is designed for the first time, and can be directly connected to a pneumatic CRS feeding and discharging section of a production line. The device of the present disclosure is compact and suitable for industrial production.

A device for separating light flaky cut rolled stems (CRSs) by a throwing roller is provided. The device includes a vertically provided separation bin, and a CRS guide device and a CRS distribution plate which are arranged in the separation bin. The present disclosure further provides a method for separating light flaky CRSs by using the device. The present disclosure achieves full separation of finished CRSs from light flaky CRSs. The device of the present disclosure is designed for the first time, and can be directly connected to a pneumatic CRS feeding and discharging section of a production line. The device of the present disclosure is compact and suitable for industrial production.

A device for separating light flaky cut rolled stems (CRSs) by a throwing roller is provided. The device includes a vertically provided separation bin, and a CRS guide device and a CRS distribution plate which are arranged in the separation bin. The present disclosure further provides a method for separating light flaky CRSs by using the device. The present disclosure achieves full separation of finished CRSs from light flaky CRSs. The device of the present disclosure is designed for the first time, and can be directly connected to a pneumatic CRS feeding and discharging section of a production line. The device of the present disclosure is compact and suitable for industrial production.

Methods and systems for treating mined sand to remove an impurity in accordance with the disclosure. An example method mined sand provides mined sand containing the impurity, contacting the mined sand with an aqueous treatment fluid comprising an ethoxylated alcohol and a sulfonic acid derivative, and drying the mined sand; wherein at least a portion of the impurity is removed from the dried mined sand after contact of the mined sand with the aqueous treatment fluid.

Methods and systems for treating mined sand to remove an impurity in accordance with the disclosure. An example method mined sand provides mined sand containing the impurity, contacting the mined sand with an aqueous treatment fluid comprising an ethoxylated alcohol and a sulfonic acid derivative, and drying the mined sand; wherein at least a portion of the impurity is removed from the dried mined sand after contact of the mined sand with the aqueous treatment fluid.

Methods and systems for treating mined sand to remove an impurity in accordance with the disclosure. An example method mined sand provides mined sand containing the impurity, contacting the mined sand with an aqueous treatment fluid comprising an ethoxylated alcohol and a sulfonic acid derivative, and drying the mined sand; wherein at least a portion of the impurity is removed from the dried mined sand after contact of the mined sand with the aqueous treatment fluid.

Methods and systems for treating mined sand to remove an impurity in accordance with the disclosure. An example method mined sand provides mined sand containing the impurity, contacting the mined sand with an aqueous treatment fluid comprising an ethoxylated alcohol and a sulfonic acid derivative, and drying the mined sand; wherein at least a portion of the impurity is removed from the dried mined sand after contact of the mined sand with the aqueous treatment fluid.

In a casting sand reclamation system and a casting sand reclamation method, an appropriate reclamation process is performed according to the properties of casting sand to improve the reclamation accuracy and the reclamation yield. Capacitance measuring devices 70 and 71 that measure the capacitance of casting sand 1 (recovered sand 1a or reclamation sand 1b) are arranged on an upstream side and a downstream side of a batch-type polishing device 7, and feedback control is performed based on the measurement results of the capacitances by these capacitance measuring devices 70 and 71. A sorting device 10 sorts the recovered sand 1a polished by the polishing device 7 into a sand grain component (reclamation sand) and a fine grain component (containing a binder), and has a capacity N times that of the polishing device 7. A control device 80 performs feedback control based on capacitance RU of the recovered sand 1a measured for each polishing process on an upstream side of the polishing device 7, and an average value of N capacitances RD of the reclamation sand 1b measured for each polishing process on a downstream side of the sorting device 10.