CN-117128752-B - Atmosphere heating device for roller kiln and waste heat recovery method thereof

Abstract

The invention discloses an atmosphere heating device for a roller kiln and a waste heat recovery method thereof, which relate to the technical field of roller kilns and comprise the following steps: the roller kiln is internally provided with a heat exchange tube, one end of an atmosphere pressure regulating device is connected with the heat exchange tube through a connecting device, the other end of the atmosphere pressure regulating device is connected with an atmosphere input pipeline, and a control valve is arranged in the middle of the atmosphere input pipeline. Because the temperature of the injected atmosphere is generally indoor temperature, the injected atmosphere needs to absorb a large amount of heat to raise the temperature, and the waste heat in the natural cooling stage of the roller kiln can be absorbed and raised through the arrangement of the heat exchange tubes, so that the temperature of the atmosphere entering the roller kiln is raised, the energy consumption of the roller kiln is reduced, the air pressure and the air quantity of the injected atmosphere can be adjusted through the arrangement of the atmosphere pressure adjusting device, and the atmosphere input pipeline can be conveniently detached and replaced through the arrangement of the connecting device.

Inventors

• Ou Wenlong
• LIN WENJUN
• RONG LIANGYI
• LI ZHENG
• DENG CHAOHUI

Assignees

• 佛山市天禄智能装备科技有限公司

Dates

Publication Date

20260508

Application Date

20230524

Claims (2)

1. 1. An atmosphere heating device for a roller kiln, which utilizes waste heat in a natural cooling stage in the roller kiln, is characterized in that: The device comprises a roller kiln (1), wherein a heat exchange tube (2) is arranged in the roller kiln (1), one end of an atmosphere pressure regulating device (4) is connected with the heat exchange tube (2) through a connecting device (3), the other end of the atmosphere pressure regulating device (4) is connected with an atmosphere input pipeline (5), a control valve (6) is arranged in the middle of the atmosphere input pipeline (5), the atmosphere pressure regulating device (4) comprises a driving sleeve (7), a first diversion pressurizing sleeve (8) and a second diversion pressurizing sleeve (9), two ends of the driving sleeve (7) are respectively provided with the first diversion pressurizing sleeve (8) and the second diversion pressurizing sleeve (9) through a plurality of bolts, a plurality of guide vanes (10) are fixedly arranged on the inner wall of the driving sleeve (7), a first driving motor (15) is arranged in the driving sleeve (7) and fixedly connected with the guide vanes (10), and a plurality of radiating fins (16) are arranged on one side, far away from an output shaft, of the driving motor (15); An atmosphere port I (11) is arranged at one end, far away from the driving sleeve (7), of the first flow guiding and pressurizing sleeve (8), a fixed ring (13) is fixedly connected to the inner wall of the first flow guiding and pressurizing sleeve (8), an adjustable fan blade unit (14) is arranged in the fixed ring (13), and an atmosphere port II (12) is arranged at one end, far away from the driving sleeve (7), of the second flow guiding and pressurizing sleeve (9); The first atmosphere port (11) is connected with the heat exchange tube (2) through a connecting device (3), and the second atmosphere port (12) is connected with the atmosphere input pipeline (5) through the connecting device (3); The adjustable fan blade unit (14) comprises a fan blade mounting frame (17), wherein the fan blade mounting frame (17) is fixedly connected with an output shaft of a first driving motor (15), a plurality of threaded holes are formed in the outer wall of the fan blade mounting frame (17), and a plurality of fan blades (19) are correspondingly mounted with the threaded holes in the outer wall of the fan blade mounting frame (17) one by one through fixing sleeves (22); the fan blade (19) is fixedly connected with the fixed sleeve (22), a circle of threads (23) is arranged on the outer wall of the surrounding fixed sleeve (22), one end of the first connecting rod (20) is fixedly connected with the threaded rod (24), the other end of the first connecting rod (20) is fixedly connected with the movable extending fixed sleeve (22) and fixedly connected with the rotating handle (21), the limiting ring (25) is fixedly sleeved on the outer wall of the first connecting rod (20), the thread sleeve (26) is movably sleeved on the outer wall of the threaded rod (24), one end of the third connecting rod (27) is hinged with the thread sleeve (26), the other end of the third connecting rod (27) is hinged with the clamping rod (28), a plurality of through grooves (29) are formed in the fixed sleeve (22), the clamping rod (28) is arranged in the through grooves (29), one end of the positioning rod (30) is fixedly connected with the inner wall of the fixed sleeve (22), and the other end of the positioning rod (30) is connected with the threaded rod (24) through a bearing (31). The connecting device (3) comprises a semicircular inner ring (33) and a fixed outer ring (34), wherein the two groups of semicircular inner rings (33) are arranged in the fixed outer ring (34), the two groups of semicircular inner rings (33) are rotationally connected through a rotating shaft (18), the fixed outer ring (34) is fixedly connected with an atmosphere pressure adjusting device (4), a plurality of locking control units (35) are circumferentially arranged in the fixed outer ring (34), a plurality of groups of safety reset units (36) are arranged between the circumferential semicircular inner ring (33) and the fixed outer ring (34), a control box body (39) is fixedly connected to the outer wall of the fixed outer ring (34), one end of a handle rod (37) is rotationally connected with the inner wall of the control box body (39), the other end of the handle rod (37) is movably extended out of the control box body (39), a tightening wheel (38) is fixedly sleeved on the outer wall of the handle rod (37), and two groups of fixed pulleys (40) are fixedly connected to the outer wall of the fixed outer ring (34) and symmetrically arranged on two sides of the control box body (39); The locking control unit (35) comprises a second connecting rod (41), wherein one end of the second connecting rod (41) is provided with a through hole (51), the other end of the second connecting rod (41) movably penetrates through the fixed outer ring (34) and extends between the semicircular inner ring (33) and the fixed outer ring (34), one end of the second connecting rod (41) extending into the fixed outer ring (34) is fixedly connected with a trapezoid pressing block (44), an arc-shaped rubber pad (45) is fixedly arranged on the trapezoid pressing block (44), a plurality of empty slots I (42) are formed in the inner ring wall of the fixed outer ring (34), two groups of connecting springs I (43) are arranged in the empty slots I (42), two ends of each connecting spring I (43) are fixedly connected with the inner wall of the empty slot I (42) and the trapezoid pressing block (44) respectively, one end of a pulling rope (32) is connected onto a tightening wheel (38) in a winding manner, and the other end of the pulling rope (32) penetrates through the fixed pulley (40) and the through hole (51) and is connected onto the tightening wheel (38) in a winding manner; The safety reset unit (36) comprises a telescopic rod (46), a plurality of empty slots II (49) are formed in the outer ring wall of the semicircular inner ring (33), one end of the telescopic rod (46) is fixedly connected with the inner wall of the fixed outer ring (34), the other end of the telescopic rod (46) extends into the empty slots II (49) and is fixedly connected with a fixing plate (48), a connecting spring II (47) is sleeved on the outer wall of the telescopic rod (46), two ends of the connecting spring II (47) are respectively fixedly connected with the inner wall of the fixed outer ring (34) and the fixing plate (48), two groups of connecting springs III (50) are arranged in the empty slots II (49), and two ends of the connecting spring III (50) are respectively fixedly connected with the fixing plate (48) and the inner wall of the empty slots II (49).
2. 2. A method for waste heat recovery for controlling an atmosphere heating device for a roller kiln according to claim 1, characterized by: The method comprises the following steps: s1, respectively installing two groups of connecting devices (3) at two ends of an atmosphere pressure regulating device (4); S2, connecting one end of an atmosphere pressure regulating device (4) with the heat exchange tube (2) through a connecting device (3); S3, connecting the other end of the atmosphere pressure regulating device (4) with an atmosphere input pipeline (5) through a connecting device (3); s4, injecting atmosphere into the atmosphere input pipeline (5) and controlling the atmosphere through the control valve (6); s5, according to the real-time condition in the roller kiln, the air quantity and the air pressure of the atmosphere in the roller kiln are regulated by an atmosphere pressure regulating device (4).

Description

Atmosphere heating device for roller kiln and waste heat recovery method thereof Technical Field The invention relates to the technical field of roller kilns, in particular to an atmosphere heating device for a roller kiln and a waste heat recovery method thereof. Background The roller kiln is used for lithium battery sintering equipment, the sintering of lithium battery materials is carried out by adopting a roller kiln body to carry out high-temperature heating sintering, the attention is focused on effective utilization of waste heat from the aspect of energy conservation, the atmosphere (inert gas) needs to be driven into the roller kiln to protect the roller kiln in the sintering process, micro positive pressure is formed inside the kiln to prevent air from entering the inner cavity of the kiln, but the temperature of the driven atmosphere is generally indoor temperature, so that the driven atmosphere needs to absorb a large amount of heat to raise the temperature, and the energy consumption of the roller kiln is increased. Disclosure of Invention The invention aims to provide an atmosphere heating device for a roller kiln and a waste heat recovery method thereof, so as to solve the problems in the background art. The invention provides the technical scheme that the device comprises a roller kiln, wherein a heat exchange tube is arranged in the roller kiln, one end of an atmosphere pressure regulating device is connected with the heat exchange tube through a connecting device, the other end of the atmosphere pressure regulating device is connected with an atmosphere input pipeline, and a control valve is arranged in the middle of the atmosphere input pipeline. Preferably, the atmosphere pressure adjusting device comprises a driving sleeve, a first flow guiding pressurizing sleeve and a second flow guiding pressurizing sleeve, wherein the first flow guiding pressurizing sleeve and the second flow guiding pressurizing sleeve are respectively arranged at two ends of the driving sleeve through a plurality of bolts, a plurality of flow guiding blades are fixedly arranged on the inner wall of the driving sleeve, a first driving motor is arranged in the driving sleeve and fixedly connected with the plurality of flow guiding blades, and a plurality of cooling fins are arranged on one side, far away from an output shaft, of the first driving motor. Preferably, the first end of the flow guiding and pressurizing sleeve, which is far away from the driving sleeve, is provided with an atmosphere port I, the fixed ring is fixedly connected to the inner wall of the first flow guiding and pressurizing sleeve, the adjustable fan blade unit is arranged in the fixed ring, and the second end of the flow guiding and pressurizing sleeve, which is far away from the driving sleeve, is provided with an atmosphere port II. Preferably, the first atmosphere port is connected to the heat exchange tube by a connecting means, and the second atmosphere port is connected to the atmosphere inlet pipe by a connecting means. Preferably, the adjustable fan blade unit comprises a fan blade mounting frame, wherein the fan blade mounting frame is fixedly connected with an output shaft of a driving motor, a plurality of threaded holes are formed in the outer wall of the fan blade mounting frame, and a plurality of fan blades are correspondingly mounted with the plurality of threaded holes in the outer wall of the fan blade mounting frame one by one through fixing sleeves. Preferably, the flabellum is equipped with round screw thread with fixed sleeve fixed connection around fixed sleeve outer wall, first connecting rod one end and threaded rod fixed connection, the fixed sleeve is extended with the activity to the first connecting rod other end and fixedly connected with rotates the handle, the spacing ring is fixed cup joints in first connecting rod outer wall, the thread bush activity cup joints in the threaded rod outer wall, third connecting rod one end is articulated with the thread bush, the third connecting rod other end is articulated with the draw-in lever, be equipped with a plurality of logical grooves on the fixed sleeve, and the draw-in lever is arranged in logical inslot, locating lever one end and fixed sleeve inner wall fixed connection, the locating lever other end passes through the bearing and is connected with the threaded rod. Preferably, the connecting device comprises a semicircular inner ring and a fixed outer ring, wherein the two groups of semicircular inner rings are arranged in the fixed outer ring, the two groups of semicircular inner rings are connected in a rotating way through a rotating shaft, the fixed outer ring is fixedly connected with the atmosphere pressure adjusting device, a plurality of locking control units are arranged in the fixed outer ring in a surrounding way, a plurality of groups of safety reset units are arranged between the surrounding semicircular inner ring and the fixed outer ring, a contr