Please select the most similar patent number from A, B, C and D. Which number is?
A process and apparatus for scrap tire pyrolysis and material discharging. The apparatus comprises a material chamber (1). A material-discharging mechanism, a sealing apparatus, and a baffle (14) are arranged in the material chamber (1). The material-discharging mechanism comprises sequentially from outside to inside a drum (2), turntables (3), and an eccentric shaft. A rotary sleeve (4) is provided between the turntables (3) and the eccentric shaft. The eccentric shaft is constituted by shaft I (5) and shaft II (6) that are integrally arranged. The axis of shaft I (5) is located above the axis of shaft II (6). The drum is concentric with shaft I (5). The turntables (3) are sleevedly connected onto both ends shaft II (6) and are concentric with shaft II (6). An opening is provided on the drum (2). Connecting rods (8) are provided on the turntables (3). A telescopic rod set movably embedded into the opening is provided between two turntable connecting rods (8). The sealing apparatus is connected to the bottom extremity of the baffle (14). The sealing apparatus and the baffle (14) are arranged at where the telescopic rod is shortest on an outer barrel. By employing interactions of an eccentric structure and a sealing structure, implemented is whole-tire continuous pyrolysis and material discharging in a sealed state, thus providing a novel approach for scrap tire pyrolysis.
A: A roller nip adjusting mechanism of a feeding apparatus, comprising two mounting plates (4). A stationary roller is mounted between the mounting plates (4) and a movable roller is provided in parallel with the stationary roller. The movable roller comprises a roller (6) and an eccentric shaft (5). The eccentric shaft (5) consists of mounting sections at both ends thereof and an eccentric section in the middle thereof. The axis of the eccentric section deviates from that of the mounting sections. The mounting sections are rotatably mounted on the mounting plates (4), and the mounting section at one end passes through the mounting plate (4). A locking block (7) and a connecting block (8) are provided at the end of the mounting section that extends out. The connecting block (8) is connected with a handle (9). The locking block (7) is provided with a round hole. The locking block (7) is fitted over the end of the mounting section that extends out, wherein one side of the locking block (7) is fixed to the mounting plate (4), and the other side thereof is provided with a lateral opening (15) extending to the round hole. The locking block (7) is provided with a locking screw (10) which passes through the lateral opening (15). The apparatus has a simple structure and is easy to adjust.
B: A vertical waste tire treatment and recycling system, the system comprising: a vertical cracking furnace (1), a feeding port (2), a first valve (3), a second valve (10), a buffer tank (4), a distillation still (5), a heat exchanger (6), an oil storage tank (7), a fan (8), a gas storage tank (9), a waste trough (12), a storage tank (9) and a magnetic separator (11), wherein a gas output opening of the vertical cracking furnace (1) is connected to the first valve (3) by means of a pipeline; the first valve (3) is connected to a gas inlet of the buffer tank (4) by means of a pipeline; a gas outlet of the buffer tank (4) is connected to a gas inlet of the distillation still (5) by means of a pipeline; a gas outlet of the distillation still (5) is connected to a gas inlet of the heat exchanger (6) by means of a pipeline; a gas outlet of the heat exchanger (6) is connected to the oil storage tank (7) by means of a pipeline; a gas output opening is further provided at the top of the oil storage tank (7), and the gas output opening is connected to a gas inlet of the fan (8) by means of a pipeline; a gas outlet of the fan (8) is connected to the gas storage tank (9) by means of a pipeline; and a discharge port below the vertical cracking furnace (1) is connected to the second valve (10) by means of a pipeline.
C: An automated opening/closing mechanism comprising a drum (1), a closing mechanism (2), connecting rod I (3) connected to the closing mechanism (2), and connecting rod II (4) connected to connecting rod I (3). Transmission rod I (5) is arranged at where connecting rod I (3) and connecting rod II (4) are connected. Transmission rod II (6) is arranged at an extremity of connecting rod II (4). Weight wheel I (7) capable of sliding vertically along wheel groove I (12) is arranged on transmission rod I (5). Weight wheel II (8) capable of sliding vertically along wheel groove II (9) is arranged on transmission rod II (6). Limiting apparatus I (10) and limiting apparatus II (11) matching weight wheel I (7) and weight wheel II (8) are arranged in the drum (1). As such, by employing a simple structure, automated opening/closing of the opening/closing mechanism is implemented insofar that the drum is rotating, the need for manual operation is obviated, and convenience is provided for actual production.
D: A magnetic separator for screening small particulate matters, comprising: a box body (1), a waste hopper (4), a magnetic roller (5) and a cleaning partition board (6), wherein the box body (1) is rectangular, the lower part of the box body (1) is fixedly connected to the waste hopper (4), one side of the box body (1) is provided with a feed port (2), one side of the box body (1) away from the feed port (2) is provided with a discharge port (11), a rectangular magnetic separation port (10) is provided in a bottom plate (3) of the box body (1), the magnetic roller (5) is located below the magnetic separation port (10), the magnetic roller (5) is rotatably connected to the waste hopper (4), a first baffle (7) is arranged at one side of the magnetic separation port (10) close to the feed port (2), a second baffle (8) is arranged at one end of the magnetic separation port (10) close to the discharge port (11), and the cleaning partition plate (6) is tangent to the lowest point of the magnetic roller (5). By using the characteristic that the small particulate matters can be blown up, the magnetic separator carries out magnetic separation on the small particulate matters moving in the air, thereby realizing the screening of waste tire carbon black, and improving the production quality of the waste tire carbon black.
Answer: B