US 12,442,731 B1
Apparatus for extracting soil organic carbon
Caixia Zhang, Lanzhou (CN); Zhongping Li, Lanzhou (CN); Zongsheng Li, Lanzhou (CN); Xiaobo Wang, Lanzhou (CN); and Ningjing Tan, Lanzhou (CN)
Assigned to NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS, Lanzhou (CN)
Filed by NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS, Lanzhou (CN)
Filed on Jun. 26, 2025, as Appl. No. 19/251,302.
Claims priority of application No. 202410927125.2 (CN), filed on Jul. 11, 2024.
Int. Cl. G01N 1/28 (2006.01); G01N 33/24 (2006.01)
CPC G01N 1/286 (2013.01) [G01N 33/241 (2013.01); G01N 2001/2866 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An apparatus for extracting soil organic carbon, comprising:
a rotary shaker;
a first driver;
a grinding and sieving device; and
a second driver;
wherein the rotary shaker comprises a first support base, a first motor, a first support ring, a first rotating element, a heater, a weighing component and a centrifuge tube;
the first motor is mounted to the first support base; an output shaft of the first motor is connected to the first support ring; the first rotating element is rotatably engaged with the first support ring; the heater, the weighing component and the centrifuge tube are provided on the first rotating element; and the heater is configured to heat the centrifuge tube; and the weighing component is configured to bear the centrifuge tube;
the first driver is connected to the first rotating element to drive the first rotating element to rotate with respect to the first support ring; the first motor is configured to adjust a condition of the first rotating element, such that an opening of the centrifuge tube faces upward to allow material loading; and the first motor is configured to drive the first rotating element to rotate with respect to the first support base to allow material mixing;
the grinding and sieving device comprises a second support base, a second motor, a second support ring, a second rotating element and a grinding sieve tube;
the second motor is mounted to the second support base; the second support ring is mounted on an output shaft of the second motor; the second rotating element is rotatably engaged with the second support ring; the grinding sieve tube is mounted to the second rotating element; the second motor is configured to adjust a position of the second rotating element, such that the second rotating element is engaged with the second driver; and the second driver is connected to the second rotating element to drive the second rotating element to rotate with respect to the second support ring, so as to perform grinding;
the rotary shaker further comprises a first telescopic part, a first mounting plate, a suction tube, a second telescopic part, a second mounting plate and a delivery tube;
the first telescopic part is mounted to the first support base; the first mounting plate is connected to the first support base; the first telescopic part is configured to drive the first mounting plate to reciprocate in a first direction; the suction tube is mounted to the first mounting plate; and a first end of the suction tube is configured to be inserted into or separated from the centrifuge tube; and
the second telescopic part is mounted to the first support base; the second mounting plate is mounted to the second telescopic part; the second telescopic part is configured to drive the second mounting plate to reciprocate in a second direction that forms an angle with the first direction; the delivery tube is mounted to the second mounting plate; and a first end of the delivery tube is configured to be connected to or separated from a second end of the suction tube, and a second end of the delivery tube is connected to a material source.