Dry-process rotary kiln capable of utilizing waste heat

Abstract

The invention discloses a dry-process rotary kiln utilizing waste heat, and relates to the technical field of dry-process rotary kilns.The dry-process rotary kiln comprises a shell and a heat exchange assembly, a driving assembly is arranged at the top of the shell, an inner barrel is rotationally connected to the interior of the shell, a feeding assembly is arranged in one end of the inner barrel, and a combustor is arranged at one end of the bottom of the shell; the heat exchange assembly is arranged on the outer side of the other end of the inner barrel and comprises a heat exchange barrel, a flow deflector, a first limiting ring, a water inlet pipe, a second limiting ring and a water drainage pipe. When a motor drives an inner barrel with a certain inclination to rotate through a double-output-shaft speed reducer, a driving gear and a gear ring, heated materials inside can gradually move towards a heat exchange assembly, at the moment, cooling water enters a first limiting ring from a water inlet pipe and enters the first limiting ring through a through hole in the outer side of the heat exchange barrel at the position, and the cooling water is cooled; therefore, the right end of the inner cylinder is cooled, and the waste heat of the material at the right end can be absorbed and exchanged.

Description

Technical Field

[0001] The invention relates to the technical field of dry process rotary kilns, in particular to a dry process rotary kiln utilizing waste heat. Background Art

[0002] The dry rotary kiln is mainly composed of a rotary kiln, a cooler, a coal injection system, and a fan and a smoke cylinder that drive the gas flow. The raw material powder added from the cold end undergoes a series of physical and chemical reactions in the rotary kiln due to the tilted placement and rotation of the rotary kiln cylinder, and is burned into cement clinker. It is then discharged from the hot end and enters the cooler for cooling.

[0003] For example, the patent with publication number CN213238384U discloses an energy-saving rotary kiln for a new type of dry process cement production line. The feed assembly of the patent can add materials into the rotary kiln, and then transport fuel to the combustion furnace through the fuel delivery device to heat the rotary kiln. The driving mechanism can drive the rotary kiln to rotate. This process is simple and convenient to operate, and can ensure that the rotary kiln is heated evenly, effectively improving the combustion efficiency and the firing of cement. However, in the process of discharging, since the material will carry part of the heat after heating, it is not convenient to recover the heat for subsequent use, resulting in the problem that the overall energy-saving performance is relatively general.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a dry rotary kiln for waste heat utilization is proposed. Summary of the invention

[0005] The object of the present invention is to provide a dry process rotary kiln for waste heat utilization to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dry-process rotary kiln for waste heat utilization, comprising a shell and a heat exchange component, a driving component is arranged on the top of the shell, and an inner cylinder is rotatably connected inside the shell, and a feeding component is arranged inside one end of the inner cylinder, a burner is arranged at one end of the bottom of the shell, and the heat exchange component is arranged on the outside of the other end of the inner cylinder, the heat exchange component comprises a heat exchange cylinder, a guide plate, a first limiting ring, a water inlet pipe, a second limiting ring and a drain pipe, a heat exchange cylinder is fixed on the outside of the other end of the inner cylinder, and a guide plate is fixed inside the heat exchange cylinder , and the guide plate is spiral, one end of the heat exchange tube is rotatably connected to the outside with a first limiting ring, and the interior of the first limiting ring is communicated with the interior of the heat exchange tube, the bottom of the first limiting ring is connected to a water inlet pipe, and the first limiting ring is fixedly connected to the shell, the other end of the heat exchange tube is rotatably connected to the outside with a second limiting ring, and the second limiting ring is fixedly connected to the shell, and a drain pipe is arranged at the bottom of the second limiting ring, a baffle is fixed to one side of the shell, and the baffle is rotatably connected to the inner tube, a fixed pipe is arranged in the middle of one side of the baffle, and a heat insulation board is arranged at one end of the fixed pipe.

[0007] Furthermore, the driving assembly includes a motor, a double-shaft reducer, a driving gear and a gear ring. The bottom of the motor is connected to the double-shaft reducer, and driving gears are fixed at both ends of the double-shaft reducer. The bottom of the driving gear is meshed with a gear ring, and the gear ring is fixedly connected to the inner cylinder.

[0008] Furthermore, the feeding assembly includes a bracket, a feeding barrel and a connecting plate. The bracket is arranged at one end of the shell, the feeding barrel is fixed in the middle of the bracket, and the connecting plate is arranged at the end of the feeding barrel.

[0009] Furthermore, the feeding assembly also includes a driving shaft, spiral blades and a central gear. The middle part of the connecting plate is rotatably connected to the driving shaft, and the outer side of one end of the driving shaft is provided with spiral blades, and the central gear is fixed to the outer side of the middle part of the driving shaft.

[0010] Furthermore, the feeding assembly also includes a planetary gear, a ring gear and a drive sleeve. The outer side of the central gear is meshed with a planetary gear, and the planetary gear is rotatably connected to the connecting plate. One side of the planetary gear is meshed with a ring gear, and the outer side of the ring gear is fixed with a drive sleeve, and the drive sleeve is fixedly connected to the inner cylinder.

[0011] Furthermore, a liquid suction assembly is provided at the bottom of the other end of the shell, and the liquid suction assembly includes a first diversion pipe, a fixed cylinder, a second diversion pipe and a liquid suction pipe. The lower end of the water inlet pipe is connected to the first diversion pipe, and the end of the first diversion pipe is connected to the fixed cylinder, and the fixed cylinder is fixedly connected to the shell, a second diversion pipe is provided on one side of the fixed cylinder, and a liquid suction pipe is connected to one side of the second diversion pipe.

[0012] Furthermore, the liquid suction assembly also includes a piston rod, a spring, a pulley seat, a guide rod and a convex ring. The piston rod is slidably connected to the inside of the fixed cylinder, and a spring is provided at the bottom of the piston rod. The top of the piston rod is fixed with a pulley seat, and one end of the pulley seat is slidably connected to the guide rod, and the guide rod is fixedly connected to the shell. A convex ring is arranged on the outer side of the middle part of the heat exchange cylinder.

[0013] Furthermore, the liquid pipetting assembly also includes a sealing ring and a sealing plate. Sealing rings are fixed inside both ends of the first shunt tube and the second shunt tube, and the upper end of one side of the sealing ring is rotatably connected to the sealing plate.

[0014] Furthermore, a spoiler assembly is provided in the middle of the fixed tube, and the spoiler assembly includes a cylindrical cam, a sliding rod and a sliding seat. The cylindrical cam is placed on the outer side of one end of the driving shaft, and the upper end of the cylindrical cam is slidably connected to the inside of the sliding rod. A sliding seat is fixed to the top of the sliding rod, and the sliding seat is slidably connected to the fixed tube.

[0015] Furthermore, the spoiler assembly also includes a sliding column, a rotating plate, blades and a fixed cover. The sliding column is fixed inside the upper end of the sliding seat, and the two ends of the sliding column are slidably connected to the outer sides with rotating plates. Blades are arranged on the top of the rotating plate, and the two sides of the rotating plate are rotatably connected to the fixed covers, and the fixed covers are fixedly connected to the fixed tube.

[0016] The present invention provides a dry-process rotary kiln for waste heat utilization, which has the following beneficial effects: 1. When the motor drives the inner cylinder with a certain slope to rotate through the double-output shaft reducer, the driving gear and the gear ring, the heated material inside can be gradually moved toward the heat exchange component. At this time, the cooling water will enter the first limiting ring from the water inlet pipe, and enter the interior through the through hole on the outside of the heat exchange cylinder here, so as to cool the right end of the inner cylinder, and absorb the waste heat of the material here, and at the same time, the spiral guide plate is used to guide the cooling water, so that the cooling water temperature inside the heat exchange cylinder gradually increases from right to left, thereby improving the effect of heat absorption, and the heated water will be discharged through the second limiting ring and the drain pipe, so as to provide heating, hot water supply or steam generation for the heated water later, so as to recycle the waste heat of the material, and the heat insulation board can be used to separate the central interior of the inner cylinder to prevent the airflow with a large temperature difference at the left and right ends from directly contacting, which can play a certain temperature difference buffering effect.

[0017] 2. In the process of the inner cylinder rotating, the present invention will also drive the convex ring to rotate synchronously, so that its convex part squeezes the pulley seat, and at the same time uses the guide rod to guide the pulley seat to prevent it from being skewed, thereby driving the piston rod to squeeze the cooling water inside the lower end of the fixed cylinder. At this time, the sealing plate at the lower left will fit with the sealing ring under the water pressure, and the sealing plate at the lower right will rotate and separate from the sealing ring under the water pressure. Therefore, the internal cooling water will enter the water inlet pipe through the first shunt pipe to automatically replenish the cooling water inside the heat exchange cylinder. In this process, since the upper end of the fixed cylinder is in a negative pressure state, the sealing plate at the upper left end will rotate to an open state, and the external cooling water will be replenished into the fixed cylinder through the suction pipe and the second shunt pipe under the action of atmospheric pressure. As the convex ring continues to rotate, when the pulley seat is located in the groove part of the convex ring, the spring will squeeze the piston rod to move it upward, and similarly, the cooling water can be transported to the heat exchange cylinder. Therefore, during use, the normal operation of the heat exchange component can be continuously maintained without adding an additional power source.

[0018] 3. After the material is added into the feeding barrel, the rotation of the inner barrel can drive the gear ring in the driving sleeve to rotate. At this time, the bracket will limit the position of the connecting plate through the feeding barrel, and then limit the position of the planetary gear. Therefore, the gear ring will drive the center gear to rotate faster through the planetary gear, so that the spiral blades on the outside of one end of the driving shaft can push the material inside the feeding barrel to the left end of the inner barrel. Therefore, during the rotation of the inner barrel, the material can be automatically loaded, while reducing the equipment cost and maintaining the degree of automation of the equipment.

[0019] 4. In the process of driving the shaft to rotate, the cylindrical cam will also be driven to rotate. At this time, the fixed tube will limit the moving direction of the slide seat, so the cylindrical cam can drive the slide seat to move back and forth horizontally through the slide rod, and the fixed cover will support and limit the rotating plate. Therefore, the slide seat can drive the rotating plate to swing back and forth through the slide column, so that the blades can fan the airflow. Therefore, when the material exchanges heat with the lower wall of the inner cylinder, the airflow can be blown to the upper wall of the inner cylinder for heat exchange, and the airflow after heat exchange and cooling will flow downward along the inner wall and contact with the material again for heat exchange, thereby further improving the overall heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a dry-process rotary kiln for waste heat utilization according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a heat-insulating shell of a dry-process rotary kiln for waste heat utilization according to the present invention; Figure 3 This is a schematic diagram of the internal structure of the inner cylinder of a dry-process rotary kiln for waste heat utilization according to the present invention; Figure 4 It is a schematic diagram of the structure of a feeding assembly of a dry-process rotary kiln for waste heat utilization according to the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of a limiting wheel of a dry-process rotary kiln for waste heat utilization according to the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of a liquid absorption component of a dry-process rotary kiln for waste heat utilization of the present invention; Figure 7 The present invention is a schematic diagram of the three-dimensional structure of a spoiler assembly of a dry-process rotary kiln for waste heat utilization.

[0021] In the figure: 1. housing; 2. drive assembly; 201. motor; 202. double-shaft reducer; 203. driving gear; 204. gear ring; 3. inner cylinder; 4. feeding assembly; 401. bracket; 402. feeding cylinder; 403. connecting plate; 404. driving shaft; 405. spiral blade; 406. central gear; 407. planetary gear; 408. gear ring; 409. driving sleeve; 5. burner; 6. heat exchange assembly; 601. heat exchange cylinder; 602. guide vane; 603. first limiting ring; 604. water inlet pipe; 605. second limiting ring; 606. drainage Tube; 7, baffle; 8, fixed tube; 9, insulation board; 10, liquid suction assembly; 1001, first shunt tube; 1002, fixed tube; 1003, second shunt tube; 1004, liquid suction tube; 1005, piston rod; 1006, spring; 1007, pulley seat; 1008, guide rod; 1009, convex ring; 1010, sealing ring; 1011, sealing plate; 11, spoiler assembly; 1101, cylindrical cam; 1102, slide rod; 1103, slide seat; 1104, slide column; 1105, rotating plate; 1106, blade; 1107, fixed cover. DETAILED DESCRIPTION

[0022] See also Figures 1 to 7 The present invention provides a technical solution: a dry process rotary kiln for waste heat utilization, comprising a shell 1 and a heat exchange component 6, a driving component 2 is arranged on the top of the shell 1, and an inner cylinder 3 is rotatably connected inside the shell 1, and a feeding component 4 is arranged inside one end of the inner cylinder 3, a burner 5 is arranged at one end of the bottom of the shell 1, and the heat exchange component 6 is arranged on the outside of the other end of the inner cylinder 3, and the heat exchange component 6 includes a heat exchange cylinder 601, a guide plate 602, a first limiting ring 603, a water inlet pipe 604, a second limiting ring 605 and a drain pipe 606, a heat exchange cylinder 601 is fixed on the outside of the other end of the inner cylinder 3, and a guide plate 602 is fixed inside the heat exchange cylinder 601, and the guide plate 602 It is spiral-shaped, and a first limiting ring 603 is rotatably connected to the outer side of one end of the heat exchange tube 601, and the interior of the first limiting ring 603 is communicated with the interior of the heat exchange tube 601, and a water inlet pipe 604 is connected to the bottom of the first limiting ring 603, and the first limiting ring 603 is fixedly connected to the shell 1, and a second limiting ring 605 is rotatably connected to the outer side of the other end of the heat exchange tube 601, and the second limiting ring 605 is fixedly connected to the shell 1, and a drain pipe 606 is arranged at the bottom of the second limiting ring 605, a baffle 7 is fixed to one side of the shell 1, and the baffle 7 is rotatably connected to the inner tube 3, a fixed pipe 8 is arranged in the middle of one side of the baffle 7, and a heat insulation plate 9 is arranged at one end of the fixed pipe 8.

[0023] See also Figures 1 to 4The driving assembly 2 includes a motor 201, a double-shaft reducer 202, a driving gear 203 and a gear ring 204. The bottom of the motor 201 is connected to the double-shaft reducer 202, and the two ends of the double-shaft reducer 202 are fixed with driving gears 203. The bottom of the driving gear 203 is meshed with a gear ring 204, and the gear ring 204 is fixedly connected to the inner cylinder 3. The feeding assembly 4 includes a bracket 401, a feeding barrel 402 and a connecting plate 403. The bracket 401 is arranged at one end of the shell 1, and the feeding barrel 402 is fixed in the middle of the bracket 401, and the end of the feeding barrel 402 is arranged with a connecting plate 403. The feeding assembly 4 also includes a driving shaft 404, spiral blades 405 and central gear 406, the middle part of the connecting plate 403 is rotatably connected with the driving shaft 404, and the spiral blades 405 are arranged on the outer side of one end of the driving shaft 404, and the central gear 406 is fixed on the outer side of the middle part of the driving shaft 404, the feeding assembly 4 also includes planetary gears 407, a gear ring 408 and a driving sleeve 409, the outer side of the central gear 406 is meshed with a planetary gear 407, and the planetary gear 407 is rotatably connected with the connecting plate 403, one side of the planetary gear 407 is meshed with a gear ring 408, and the outer side of the gear ring 408 is fixed with a driving sleeve 409, and the driving sleeve 409 is fixedly connected with the inner cylinder 3; The specific operation is as follows. After the material is added into the feeding barrel 402, the motor 201 is started, so that it drives the inner barrel 3 to rotate through the double-output shaft reducer 202, the driving gear 203 and the gear ring 204, and then drives the ring gear 408 in the driving sleeve 409 to rotate. Since the bracket 401 will limit the position of the connecting plate 403 through the feeding barrel 402, and then limit the position of the planetary gear 407, the ring gear 408 will drive the central gear 406 to accelerate the rotation through the planetary gear 407, so that the spiral blade 405 on the outer side of one end of the driving shaft 404 can push the material inside the feeding barrel 402 to the inside of the left end of the inner barrel 3. Therefore, during the rotation of the inner barrel 3, the material can be automatically loaded, and when the material falls into the left end of the inner barrel 3, the burner 5 will heat the left end of the inner barrel 3, and the equipment as a whole has a certain inclination, so during the rotation of the inner barrel 3, the material will gradually move to the right, and After the heating reaction of the material is completed and it moves to the right end of the inner tube 3, the cooling water will enter the first limiting ring 603 through the water inlet pipe 604, and then enter the interior through the through hole on the outside of the heat exchange tube 601 here, so as to cool the right end of the inner tube 3, and absorb the waste heat of the material here, and at the same time use the spiral guide plate 602 to guide the cooling water, so that the cooling water temperature inside the heat exchange tube 601 gradually increases from right to left, thereby improving the effect of heat absorption, and the heated water will be discharged through the second limiting ring 605 and the drain pipe 606, so as to provide heating, hot water supply or steam generation for the heated water, so as to recycle the waste heat of the material, and the heat insulation plate 9 can be used to separate the central interior of the inner tube 3 to prevent the airflow with a large temperature difference at the left and right ends from directly contacting, which can play a certain temperature difference buffering effect.

[0024] See also Figures 5 to 7, a liquid suction component 10 is arranged at the bottom of the other end of the shell 1, and the liquid suction component 10 includes a first shunt pipe 1001, a fixed cylinder 1002, a second shunt pipe 1003 and a liquid suction pipe 1004, the lower end of the water inlet pipe 604 is connected to the first shunt pipe 1001, and the end of the first shunt pipe 1001 is connected to the fixed cylinder 1002, and the fixed cylinder 1002 is fixedly connected to the shell 1, and the second shunt pipe 1003 is arranged on one side of the fixed cylinder 1002, and the second shunt pipe 1003 is connected to the liquid suction pipe 1004 on one side, and the liquid suction component 1 0 also includes a piston rod 1005, a spring 1006, a pulley seat 1007, a guide rod 1008 and a convex ring 1009, the interior of the fixed cylinder 1002 is slidably connected with the piston rod 1005, and the bottom of the piston rod 1005 is provided with a spring 1006, the top of the piston rod 1005 is fixed with a pulley seat 1007, and one end of the pulley seat 1007 is internally slidably connected with the guide rod 1008, and the guide rod 1008 is fixedly connected to the shell 1, and the convex ring 1009 is arranged on the outer side of the middle of the heat exchange cylinder 601, and the liquid suction assembly 10 also includes The first shunt pipe 1001 and the second shunt pipe 1003 are provided with sealing rings 1010 fixed at both ends thereof, and the upper end of one side of the sealing ring 1010 is rotatably connected with the sealing plate 1011. A spoiler assembly 11 is provided in the middle of the fixed pipe 8, and the spoiler assembly 11 includes a cylindrical cam 1101, a slide rod 1102 and a slide seat 1103. The cylindrical cam 1101 is arranged on the outer side of one end of the driving shaft 404, and the upper end of the cylindrical cam 1101 is slidably connected with the slide rod 1102. The slide rod 1103 is provided with a cylindrical cam 1101. 02 is fixed with a slide seat 1103 at the top, and the slide seat 1103 is slidably connected to the fixed tube 8, the spoiler assembly 11 also includes a slide post 1104, a rotating plate 1105, a blade 1106 and a fixed cover 1107, the slide post 1104 is fixed inside the upper end of the slide seat 1103, and the rotating plates 1105 are slidably connected to the outer sides of the two ends of the slide post 1104, the blade 1106 is arranged on the top of the rotating plate 1105, and the fixed covers 1107 are rotatably connected to the two sides of the rotating plate 1105, and the fixed covers 1107 are fixedly connected to the fixed tube 8; The specific operation is as follows: the inner cylinder 3 will also drive the convex ring 1009 to rotate synchronously, so that its convex part squeezes the pulley seat 1007, and at the same time, the guide rod 1008 is used to guide the pulley seat 1007 to prevent it from being skewed, thereby driving the piston rod 1005 to squeeze the cooling water inside the lower end of the fixed cylinder 1002. At this time, the sealing plate 1011 at the lower left will fit with the sealing ring 1010 under the water pressure, and the sealing plate 1011 at the lower right will rotate under the water pressure and separate from the sealing ring 1010, so that the internal cooling water The cooling water will enter the water inlet pipe 604 through the first shunt pipe 1001, and when the piston rod 1005 moves downward, the upper end of the fixed cylinder 1002 will be in a negative pressure state, and the sealing plate 1011 at the upper left end will rotate to an open state. The cooling water in the cooling water pool connected to the end of the suction pipe 1004 will be replenished into the fixed cylinder 1002 through the suction pipe 1004 and the second shunt pipe 1003 under the action of atmospheric pressure, and as the convex ring 1009 continues to rotate, when the pulley seat 1007 is located at the convex ring 1009, the cooling water in the cooling water pool will be replenished into the fixed cylinder 1002 through the suction pipe 1004 and the second shunt pipe 1003 under the action of atmospheric pressure. When the groove part is formed, the spring 1006 will squeeze the piston rod 1005 to move it upward, and at the same time, it can transport cooling water into the heat exchange cylinder 601. Therefore, during use, the heat exchange component 6 can continue to work normally without adding an additional power source. In the process of heat exchange, the driving shaft 404 will also drive the cylindrical cam 1101 to rotate. At this time, the fixed pipe 8 will limit the moving direction of the slide 1103. Therefore, the cylindrical cam 1101 can drive the slide 1103 to move horizontally back and forth through the slide rod 1102, and The fixed cover 1107 will support and limit the rotating plate 1105, so the slide seat 1103 can drive the rotating plate 1105 to swing back and forth through the slide column 1104, so that the blades 1106 can fan the airflow. Therefore, when the material exchanges heat with the lower wall of the inner tube 3, the airflow can be blown to the upper wall of the inner tube 3 for heat exchange, and the airflow after heat exchange and cooling will flow downward along the inner wall and contact the material again for heat exchange, thereby further improving the overall heat exchange effect, and the cooled material can be discharged from the right end of the inner tube 3.

[0025] In summary, when the dry-process rotary kiln utilizing waste heat is used, firstly, the material is added into the feeding barrel 402, and then the motor 201 is started, so that the motor 201 drives the inner barrel 3 to rotate through the double-output shaft reducer 202, the driving gear 203 and the gear ring 204, and then the gear ring 408 in the driving sleeve 409 can be driven to rotate. Since the bracket 401 can limit the position of the connecting plate 403 through the feeding barrel 402, and then limit the position of the planetary gear 407, the gear ring 408 can drive the central gear 406 to accelerate the rotation through the planetary gear 407, so that the spiral blade 405 on the outer side of one end of the driving shaft 404 can push the material inside the feeding barrel 402 to the inside of the left end of the inner barrel 3. Secondly, when the material falls into the left end of the inner barrel 3, the burner 5 will enter the left end of the inner barrel 3. Heating is performed, and the whole device has a certain inclination. Therefore, during the rotation of the inner cylinder 3, the material will gradually move to the right. Then, when the material moves to the right end inside the inner cylinder 3, the inner cylinder 3 will also drive the convex ring 1009 to rotate synchronously, so that its convex part squeezes the pulley seat 1007, and the guide rod 1008 is used to guide the pulley seat 1007, thereby driving the piston rod 1005 to squeeze the cooling water inside the lower end of the fixed cylinder 1002. At this time, the sealing plate 1011 at the lower left will fit with the sealing ring 1010 under the water pressure, and the sealing plate 1011 at the lower right will rotate under the water pressure and separate from the sealing ring 1010. Therefore, the internal cooling water will enter the water inlet pipe 604 through the first shunt pipe 1001, and then enter the first limit ring 60 3, and enters the interior through the through hole on the outside of the heat exchange cylinder 601, thereby cooling the right end of the inner cylinder 3, and at the same time using the spiral guide plate 602 to guide the cooling water, so that the cooling water temperature inside the heat exchange cylinder 601 gradually increases from right to left, and the heated water will be discharged through the second limit ring 605 and the drain pipe 606, so as to recover the waste heat of the heated water for subsequent heating, hot water supply or steam generation, and the heat insulation plate 9 can also be used to separate the central interior of the inner cylinder 3 to prevent the airflows with large temperature differences at the left and right ends from directly contacting each other, and then, when the piston rod 1005 moves downward, the interior of the upper end of the fixed cylinder 1002 will be in a negative pressure state, and the sealing plate 1011 at the upper left end will rotate to an open state to absorb liquid. The cooling water in the cooling water pool connected to the end of the tube 1004 will be replenished into the fixed cylinder 1002 through the suction pipe 1004 and the second shunt pipe 1003 under the action of atmospheric pressure, and as the convex ring 1009 continues to rotate, when the pulley seat 1007 is located in the groove part of the convex ring 1009, the spring 1006 will squeeze the piston rod 1005 to move it upward, and similarly, the cooling water can be transported to the heat exchange cylinder 601. Finally, during the rotation of the drive shaft 404, the cylindrical cam 1101 will also be driven to rotate, which can drive the slide seat 1103 to move back and forth horizontally through the slide rod 1102, and the fixed cover 1107 will support and limit the rotating plate 1105, so that the slide seat 1103 can drive the rotating plate 1105 to swing back and forth through the slide column 1104.The blades 1106 are used to fan the airflow, so when the material exchanges heat with the lower wall of the inner tube 3, the airflow can be blown to the upper wall of the inner tube 3 for heat exchange, and the airflow after heat exchange and cooling will flow downward along the inner wall and contact the material again for heat exchange, and then the heat exchanged material can be discharged from the right end of the inner tube 3.

[0026] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A dry process rotary kiln for waste heat utilization, characterized in that: The invention comprises a shell (1) and a heat exchange component (6), wherein a driving component (2) is arranged on the top of the shell (1), and an inner cylinder (3) is rotatably connected inside the shell (1), and a feeding component (4) is arranged inside one end of the inner cylinder (3), and a burner (5) is arranged on the bottom end of the shell (1), and the heat exchange component (6) is arranged on the outside of the other end of the inner cylinder (3), and the heat exchange component (6) comprises a heat exchange cylinder (601), a guide vane (602), a first limiting ring (603), a water inlet pipe (604), a second limiting ring (605) and a drain pipe (606), a heat exchange cylinder (601) is fixed on the outside of the other end of the inner cylinder (3), and a guide vane (602) is fixed inside the heat exchange cylinder (601), and the guide vane (602) is spiral-shaped, and the heat exchange cylinder (601) is fixed to the outside of the other end of the inner cylinder (3). A first limiting ring (603) is rotatably connected to the outside of one end of the heat exchange tube (601), and the interior of the first limiting ring (603) is connected to the interior of the heat exchange tube (601); a water inlet pipe (604) is connected to the bottom of the first limiting ring (603), and the first limiting ring (603) is fixedly connected to the shell (1); a second limiting ring (605) is rotatably connected to the outside of the other end of the heat exchange tube (601), and the second limiting ring (605) is fixedly connected to the shell (1), and a drain pipe (606) is arranged at the bottom of the second limiting ring (605); a baffle (7) is fixed to one side of the shell (1), and the baffle (7) is rotatably connected to the inner tube (3); a fixed pipe (8) is arranged in the middle of one side of the baffle (7), and a heat insulation plate (9) is arranged at one end of the fixed pipe (8).

2. The dry process rotary kiln for waste heat utilization according to claim 1, characterized in that: The driving assembly (2) comprises a motor (201), a double-shaft reducer (202), a driving gear (203) and a gear ring (204); the bottom of the motor (201) is connected to the double-shaft reducer (202), and driving gears (203) are fixed at both ends of the double-shaft reducer (202); the bottom of the driving gear (203) is meshed with a gear ring (204), and the gear ring (204) is fixedly connected to the inner cylinder (3).

3. The dry process rotary kiln for waste heat utilization according to claim 1, characterized in that: The feeding assembly (4) comprises a bracket (401), a feeding barrel (402) and a connecting plate (403); the bracket (401) is arranged at one end of the housing (1), the feeding barrel (402) is fixed in the middle of the bracket (401), and the connecting plate (403) is arranged at the end of the feeding barrel (402).

4. The dry process rotary kiln for waste heat utilization according to claim 3, characterized in that: The feeding assembly (4) further comprises a driving shaft (404), a spiral blade (405) and a central gear (406); the middle portion of the connecting plate (403) is rotatably connected to the driving shaft (404); the spiral blade (405) is arranged on the outer side of one end of the driving shaft (404); and the central gear (406) is fixed on the outer side of the middle portion of the driving shaft (404).

5. The dry process rotary kiln for waste heat utilization according to claim 4, characterized in that: The feeding assembly (4) further comprises a planetary gear (407), a gear ring (408) and a drive sleeve (409); the outer side of the central gear (406) is meshed with a planetary gear (407), and the planetary gear (407) is rotationally connected to the connecting plate (403); one side of the planetary gear (407) is meshed with a gear ring (408), and the outer side of the gear ring (408) is fixed with a drive sleeve (409), and the drive sleeve (409) is fixedly connected to the inner cylinder (3).

6. The dry process rotary kiln for waste heat utilization according to claim 1, characterized in that: A liquid suction component (10) is arranged at the bottom of the other end of the shell (1), and the liquid suction component (10) comprises a first diverter pipe (1001), a fixed cylinder (1002), a second diverter pipe (1003) and a liquid suction pipe (1004); the lower end of the water inlet pipe (604) is connected to the first diverter pipe (1001), and the end of the first diverter pipe (1001) is connected to the fixed cylinder (1002), and the fixed cylinder (1002) is fixedly connected to the shell (1); a second diverter pipe (1003) is arranged on one side of the fixed cylinder (1002), and a liquid suction pipe (1004) is connected to one side of the second diverter pipe (1003).

7. The dry process rotary kiln for waste heat utilization according to claim 6, characterized in that: The liquid suction component (10) further comprises a piston rod (1005), a spring (1006), a pulley seat (1007), a guide rod (1008) and a convex ring (1009); the interior of the fixed cylinder (1002) is slidably connected to the piston rod (1005), and the bottom of the piston rod (1005) is provided with a spring (1006); the top of the piston rod (1005) is fixed with a pulley seat (1007), and one end of the pulley seat (1007) is slidably connected to the guide rod (1008), and the guide rod (1008) is fixedly connected to the shell (1); and a convex ring (1009) is arranged on the outer side of the middle part of the heat exchange cylinder (601).

8. The dry process rotary kiln for waste heat utilization according to claim 7, characterized in that: The liquid pipetting assembly (10) further comprises a sealing ring (1010) and a sealing plate (1011); sealing rings (1010) are fixed inside both ends of the first shunt tube (1001) and the second shunt tube (1003); and the upper end of one side of the sealing ring (1010) is rotatably connected to the sealing plate (1011).

9. The dry process rotary kiln for waste heat utilization according to claim 4, characterized in that: A spoiler assembly (11) is arranged in the middle of the fixed tube (8), and the spoiler assembly (111) comprises a cylindrical cam (1101), a sliding rod (1102) and a sliding seat (1103); the cylindrical cam (1101) is arranged on the outside of one end of the driving shaft (404), and the upper end of the cylindrical cam (1101) is slidably connected to the inside of the sliding rod (1102); the sliding seat (1103) is fixed to the top of the sliding rod (1102), and the sliding seat (1103) is slidably connected to the fixed tube (8).

10. The dry process rotary kiln for waste heat utilization according to claim 9, characterized in that: The spoiler assembly (11) further comprises a sliding column (1104), a rotating plate (1105), a blade (1106) and a fixed cover (1107); the sliding column (1104) is fixed inside the upper end of the sliding seat (1103); the rotating plates (1105) are slidably connected to the outer sides of both ends of the sliding column (1104); the blade (1106) is arranged on the top of the rotating plate (1105); the fixed covers (1107) are rotatably connected to the two sides of the rotating plate (1105); and the fixed covers (1107) are fixedly connected to the fixed pipe (8).

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