Please select the most similar patent number from A, B, C and D. Which number is?
An air-pressure-type dual-bin air-powered separator. An upper side wall of a separation bin (11) is in communication with an upper side wall of a material drop bin (12); a conveyor mesh belt (5) connects the separation bin (11) and the material drop bin (12) through the communication opening between the two; an air curtain separating the two bins is provided at the communication opening; a material outlet (9) is provided at the bottom of the material drop bin (12); the top of the separation bin (11) is provided with a negative-pressure air-suction port (6); a material inlet (4) is provided at the bottom of the end facing the conveyor mesh belt (5) on a side wall of the separation bin (11); a vibration groove (3) is provided at the bottom of the separation bin (11); a damping plate (2) is provided at the bottom of the vibration groove (3); an air inlet (1) facing an opening at the bottom end of the separation bin (11) is provided at the lower portion of the damping plate (2); an end of the vibration groove (3) connects to a removed material drop outlet (10). The air-powered separator can separate useless particles of different densities from material according to needs, collect useful material, prevent material particles from breaking and becoming smaller due to mechanical fiction, and has the characteristics of high efficiency, low energy consumption, simple structure, and low material loss.
A: A paste separator (100). A separation bin (111) is disposed on the inner surface of the lower part of a main body (110). A separation opening (112) is disposed on the bottom of the separation bin (111). The paste separator comprises a first fixed ring (120), a second fixed ring (130) and an annular rubber pad (140) that are fixed to the separation opening (112). An annular groove (141) for placing the edge of the separation opening (112) is formed in the edge of the annular rubber pad (140). When the annular rubber pad (140) is sleeved with the separation opening (112), the annular rubber pad (140) is located between the first fixed ring (120) and the second fixed ring (130). A handle (150) and a control member (101) are disposed on the main body (110). One end of the control member (101) is fixed to the handle (150) by means of a pin shaft (102), and the other end is connected to a sliding valve (103). A placing hole (115) for placing the sliding valve (103) is formed in the side wall of the bottom of the main body (110). A placing opening (132) for placing the sliding valve (103) is formed in the second fixed ring (130). By controlling the control member (101), the sliding valve (103) is moved in the placing hole (115) and the placing opening (132). When the sliding valve (103) is inserted in the second fixed ring (130), the separation opening (112) is sealed by the sliding valve (103); and when the sliding valve (103) moves outwards from the second fixed ring (130), the separation opening (112) is opened.
B: Disclosed is a material separation apparatus. The material separation apparatus comprises a feed channel (10), a discharge channel (20), an impurity separation channel (30), and a turbulent flow generation mechanism (60). The feed channel (10) is provided with a feed inlet (11). The discharge channel (20) is provided with a discharge outlet (21). The discharge channel (20) is in communication with the feed channel (10). An air flow flowing from the feed inlet (11) to the discharge outlet (21) is formed in the feed channel (10) and the discharge channel (20). The impurity separation channel (30) is disposed at an intersection of the feed channel (10) and the discharge channel (20). One end of the impurity separation channel (30) is in communication with the feed channel (10) and the discharge channel (20). The position of the impurity separation channel (30) is lower than positions of the feed inlet (11) and the discharge outlet (21). The turbulent flow generation mechanism (60) is disposed at the intersection of the feed channel (10) and the discharge channel (20). The turbulent flow generation mechanism (60) is used for generating an irregular air flow (80). A formation area of the irregular air flow (80) is located between the feed channel (10) and the impurity separation channel (30). The apparatus overcomes the limitation of a magnetic separation mode, and improves the effect of material impurity separation.
C: Disclosed is a preliminary oil-water separation and filtration structure, comprising a storage bucket (1), a separation bin (2), air pipes (17) and an air exhaust mechanism which are arranged inside a housing, wherein the air pipes (17) are arranged at the top of both the storage bucket (1) and the separation bin (2); the air pipes (17) lead to the air exhaust mechanism; the air exhaust mechanism comprises an air blower (18) and an activated carbon layer (19); one end of the air blower (18) is connected to the air pipes (17), and the other end leads to the activated carbon layer (19); the storage bucket (1) is divided into two independent inner cavities by a partition plate (3); oil-water mixtures in the two inner cavities are mixed after overflowing the top of the partition plate (3); a stirring rod (5) is arranged on a bottom face of each inner cavity; the stirring rods (5) are mounted on the storage bucket (1) via sealing bearings (6); a flow channel port (9) for the oil to overflow is arranged at an upper edge of a rotary slope face (8); the flow channel port (9) leads to the separation bin (2); the separation bin (2) is divided into a water bin and an oil bin; a hydrophilic and oleophobic separation layer (10) is arranged at an outlet of the flow channel port (9); the separation layer (10) is arranged obliquely downward; an oblique lower end of the separation layer (10) leads to the oil bin; the water bin is located on a lower side of the separation layer (10); a water outlet (11) is arranged in the water bin; and an oil outlet (12) is arranged in the oil bin.
D: A thermal separation apparatus for recycling oil-based drilling waste of an offshore oilfield, comprising a servo motor (2), a thermal separation bin body (5), a mixing bin (13), a second feed pipe (16), and a rotating shaft (17). A cover body (4) is fixedly installed on one side of the thermal separation bin body (5) by means of a fastening screw (1). A ceramic wear-resistant arc plate (7) is fixedly installed below the inner wall of the thermal separation bin body (5). A hole is formed in the middle of one side of the cover body (4) and a second bearing (18) is embedded in the hole. A first bearing (8) is embedded in one side of the inner wall of the thermal separation bin body (5). The inner wall of the first bearing (8) and the inner wall of the second bearing (18) are fixedly connected to both ends of a rotating shaft (17), respectively. A hole is formed in the bottom of the thermal separation bin body (5) and communicates with one end of the second feed pipe (16). The other end of the second feed pipe (16) communicates with the bottom of the mixing bin (13). The top of the mixing bin (13) communicates with a first feed pipe (9), and a liquid level sensing apparatus (12) is embedded in one side of the top of the mixing bin (13).
Answer: B