Ceramsite proppant sintering rotary kiln with heat recovery and heat preservation functions

Abstract

The utility model discloses a ceramsite proppant sintering rotary kiln for heat recovery and heat preservation, and particularly relates to the technical field of mechanical engineering, the ceramsite proppant sintering rotary kiln comprises a kiln body, a plurality of convex blocks are fixedly arranged on the inner side of the kiln body, a power supporting component is arranged on the outer side of the kiln body, a kiln head cover is arranged on the left sides of the convex blocks, and the kiln head cover is rotatably connected with the kiln body. A discharging port is formed in the bottom of the left side of the kiln head cover, and a spraying combustion material collecting component is arranged on one side of the discharging port. According to the utility model, the preheating component is arranged, the preheating component is used for recovering waste gas generated in the kiln body through the annular pipe tower, and waste heat of the waste gas is used for preheating materials in the preheating box, so that moisture can be removed, and the phenomena of material bonding and blockage caused by excessive moisture can be prevented; and smooth flowing of materials in the rotary kiln is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and more specifically, to a rotary kiln for sintering ceramic aggregate support with heat recovery and insulation. Background Technology

[0002] A heat-recovery and heat-insulated rotary kiln for sintering ceramsite proppant is a specialized piece of equipment for firing ceramsite proppant. Through rotational motion, it ensures uniform heating of the material within the kiln and utilizes heat recovery and insulation technologies to improve energy efficiency while maintaining a stable kiln temperature, thus guaranteeing that the quality and performance of the ceramsite proppant meet requirements.

[0003] Existing rotary kilns for sintering with ceramsite support and heat recovery lack the ability to recover and utilize waste heat from exhaust gases, resulting in low energy efficiency. At the same time, the igniter does not completely burn the fuel, leading to energy waste. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rotary kiln for sintering ceramic aggregate support with heat recovery and insulation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary kiln for sintering ceramsite proppant with heat recovery and insulation, comprising a kiln body, wherein multiple protrusions are fixedly provided on the inner side of the kiln body, and a power support component is provided on the outer side of the kiln body;

[0006] A kiln head cover is provided on the left side of the protrusion. The kiln head cover is rotatably connected to the kiln body. A discharge port is provided at the bottom left side of the kiln head cover. A combustion material collection component is provided on one side of the discharge port.

[0007] The protrusion is provided with a kiln tail cover on the right side, and a preheating inner swirl assembly is provided on one side of the kiln tail cover;

[0008] The preheating inner rotation assembly includes an inner rotation component and a preheating component, wherein the inner rotation component is disposed at the bottom of the preheating component.

[0009] As a further description of the above technical solution:

[0010] The preheating component includes a base, a plurality of fixed columns are fixedly provided on the top of the base, and an installation shell is fixedly provided on the top of the base. The tops of the plurality of fixed columns are fixedly connected to the bottom of the installation shell. An annular tube tower is provided inside the installation shell. An exhaust pipe is provided through one side of the bottom of the annular tube tower. The exhaust pipe passes through the installation shell and extends to the outside to be connected to the kiln tail cover. A preheating box is provided inside the annular tube tower.

[0011] As a further description of the above technical solution:

[0012] The preheating box is fixedly connected to the mounting shell. An electrostatic precipitator is fixedly installed on the top of the preheating box. The electrostatic precipitator is connected to the top of the annular tube tower. An inlet is opened on one side of the mounting shell. A first discharge pipe is provided through the bottom of the preheating box. The first discharge pipe passes through the mounting shell and extends to the outside to be connected to the kiln tail cover. An automatic valve is provided on the first discharge pipe.

[0013] As a further description of the above technical solution:

[0014] The inner rotating component includes a first mounting frame, which is fixedly connected to the bottom of the mounting shell. A first motor is mounted on the top of the first mounting frame. The output end of the first motor is provided with a first rotating shaft. The first rotating shaft passes through the kiln tail cover and extends to the inside to be rotatably connected to the kiln head cover. Multiple baffles are fixedly provided at the bottom of the first rotating shaft. The multiple baffles are evenly arranged between multiple protrusions.

[0015] As a further description of the above technical solution:

[0016] The combustible material collection component includes a base, a collection box installed on one side of the base, a fixed frame fixed at the bottom of the base, a coal powder box fixed at the top of the fixed frame, a second motor fixed at the top of the coal powder box, a second rotating shaft at the output end of the second motor, the second rotating shaft passing through the coal powder box and extending to the inside, a semi-circular plate fixed at the bottom end of the second rotating shaft, a scraper on one side of the semi-circular plate and fixedly connected to the second rotating shaft.

[0017] As a further description of the above technical solution:

[0018] A second discharge pipe is provided through the bottom of the pulverized coal box. The second discharge pipe passes through the fixing frame and extends to the outside. A mist box is provided through the bottom of the second discharge pipe. A second mounting frame is fixedly provided at the bottom of the mist box. The second mounting frame is fixedly connected to the fixing frame. A blower is fixedly provided at the top of the base. The output end of the blower is connected through the mist box. Two inclined plates are fixedly provided inside the mist box. An igniter is provided through one side of the mist box and passes through the kiln head cover and extends to the inside of the kiln body.

[0019] As a further description of the above technical solution:

[0020] The power support component includes a first fixed base, with two rotating grooves on the inner side of the first fixed base. Two driving wheels are rotatably arranged inside the rotating grooves, and a master-slave wheel is rotatably arranged between the two driving wheels. The master-slave wheel is fixedly sleeved on the outer side of the kiln body. Two third motors are fixedly arranged on the top of the first fixed base. The output end of the third motor is provided with a third rotating shaft, which passes through the driving wheel and is fixedly connected to the driving wheel.

[0021] As a further description of the above technical solution:

[0022] The third rotating shaft passes through one end of the driving wheel and is provided with a fixed plate. The fixed plate is fixedly connected to the first fixed seat. Two secondary driven wheels are fixedly sleeved on the outside of the kiln body. The bottom of the two secondary driven wheels is provided with a slide rail, and the bottom of the slide rail is fixedly provided with a second fixed seat.

[0023] The technical effects and advantages of this utility model are as follows:

[0024] By setting up a preheating component, compared with the existing technology, the preheating component recovers the waste gas generated in the kiln through the annular tube tower, and uses the residual heat of the waste gas to preheat the material in the preheating box. This can remove moisture and prevent material adhesion and blockage caused by excessive moisture, ensuring the smooth flow of material in the rotary kiln.

[0025] By setting up a combustion material collection component, compared with the existing technology, the semi-circular plate and scraper can control the input speed and amount of pulverized coal when rotating. At the same time, the inclined plate is set in the mist box, and the mist box is semi-circular, so that the pulverized coal is fully atomized, so that the pulverized coal is fully burned, and the fuel utilization rate is improved.

[0026] By incorporating an internal rotating component, compared to existing technologies, this structure, in conjunction with protrusions within the kiln, allows the kiln to rotate counterclockwise while the internal rotating component rotates clockwise. Through these opposing rotational movements, the materials within the kiln are struck, preventing material adhesion and ensuring uniform heating. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the preheating component structure of this utility model.

[0029] Figure 3 This is a schematic diagram of the power support component structure of this utility model.

[0030] Figure 4 This is a schematic diagram of the internal rotation component structure of this utility model.

[0031] Figure 5 This is a schematic diagram of the structure of the combustion material collection component of this utility model.

[0032] Figure 6 This is a cross-sectional structural diagram of the combustible material collection component of this utility model.

[0033] The attached figures are labeled as follows: 1. Kiln body; 2. Protrusion; 3. Power support component; 301. First fixed seat; 302. Rotating groove; 303. Driving wheel; 304. Main and driven wheel; 305. Third motor; 306. Third rotating shaft; 307. Fixed plate; 308. Secondary driven wheel; 309. Slide rail; 3010. Second fixed seat; 4. Kiln head cover; 5. Discharge port; 6. Combustion material collection component; 601. Base; 602. Receiving box; 603. Fixed frame; 604. Coal powder box; 605. Second motor; 606. Second rotating shaft; 607. Semicircular plate; 608. Scraper 609. Plate; 6010. Second discharge pipe; 6011. Fog box; 6012. Second mounting bracket; 6013. Blower; 6014. Inclined plate; 6015. Ignition device; 7. Kiln tail cover; 8. Inner rotating component; 801. First mounting bracket; 802. First motor; 803. First rotating shaft; 804. Baffle; 9. Preheating component; 901. Base; 902. Fixed column; 903. Mounting shell; 904. Annular tube tower; 905. Air outlet pipe; 906. Preheating box; 907. Electrostatic precipitator; 908. Feed inlet; 909. First discharge pipe; 9010. Automatic valve. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] As attached Figure 1-6 The rotary kiln for sintering of ceramsite proppant with heat recovery and insulation shown includes a kiln body 1, with multiple protrusions 2 fixedly provided on the inner side of the kiln body 1, and a power support component 3 provided on the outer side of the kiln body 1.

[0036] A kiln head cover 4 is provided on the left side of the protrusion 2. The kiln head cover 4 is rotatably connected to the kiln body 1. A discharge port 5 is opened at the bottom left side of the kiln head cover 4. A combustion material collection component 6 is provided on one side of the discharge port 5.

[0037] A kiln tail cover 7 is provided on the right side of the protrusion 2, and a preheating inner swirl assembly is provided on one side of the kiln tail cover 7.

[0038] The preheating inner swirl assembly includes an inner swirl member 8 and a preheating member 9, with the inner swirl member 8 disposed at the bottom of the preheating member 9.

[0039] In some embodiments, according to Figure 2As shown, the preheating component 9 includes a base 901, with multiple fixed columns 902 fixedly mounted on the top of the base 901, and an installation shell 903 fixedly mounted on the top of the base 901. The tops of the multiple fixed columns 902 are all fixedly connected to the bottom of the installation shell 903. An annular tube tower 904 is located inside the installation shell 903 for preheating. It is designed in a tower shape because the exhaust gas moves upward. At the same time, the annular tube tower 904 collects the waste heat of the exhaust gas to preheat the preheating box 906. An exhaust pipe 905 is provided through one side of the bottom of the annular tube tower 904. The exhaust pipe 905 passes through the installation shell 903 and extends to the outside to connect with the kiln tail cover 7. The preheating box 906 is located inside the annular tube tower 904 to preheat the material.

[0040] In some embodiments, according to Figure 2 As shown, the preheating box 906 is fixedly connected to the mounting shell 903. An electrostatic precipitator 907 is fixedly installed on the top of the preheating box 906. The electrostatic precipitator 907 is connected to the top of the annular tube tower 904. An inlet 908 is opened on one side of the mounting shell 903. A first discharge pipe 909 is provided through the bottom of the preheating box 906. The first discharge pipe 909 passes through the mounting shell 903 and extends to the outside to be connected to the kiln tail cover 7. An automatic valve 9010 is provided on the first discharge pipe 909. When the ambient temperature is too high, the automatic valve 9010 is used to control the material to enter the kiln body 1.

[0041] In some embodiments, according to Figure 3 and Figure 4 As shown, the inner rotating component 8 includes a first mounting frame 801, which is fixedly connected to the bottom of the mounting shell 903. A first motor 802 is mounted on the top of the first mounting frame 801. A first rotating shaft 803 is provided at the output end of the first motor 802. The first rotating shaft 803 passes through the kiln tail cover 7 and extends to the inside to be rotatably connected to the kiln head cover 4. Multiple baffles 804 are fixedly provided at the bottom of the first rotating shaft 803. The multiple baffles 804 are evenly arranged between multiple protrusions 2. The baffles 804 and protrusions 2 are used to strike the material in the kiln body 1 to prevent the material from sticking together and to make the material heat evenly.

[0042] In some embodiments, according to Figure 5 As shown, the combustible material collection component 6 includes a base 601, a collection box 602 installed on one side of the base 601, a fixed frame 603 fixedly installed at the bottom of the base 601, a coal powder box 604 fixedly installed at the top of the fixed frame 603, a second motor 605 fixedly installed at the top of the coal powder box 604, a second rotating shaft 606 installed at the output end of the second motor 605, the second rotating shaft 606 passes through the coal powder box 604 and extends to the inside, a semi-circular plate 607 fixedly installed at the bottom end of the second rotating shaft 606, a scraper 608 installed on one side of the semi-circular plate 607 and fixedly connected to the second rotating shaft 606, the input speed and amount of coal powder can be controlled when the semi-circular plate 607 and the scraper rotate.

[0043] In some embodiments, according to Figure 6 As shown, a second discharge pipe 609 is provided through the bottom of the pulverized coal box 604. The second discharge pipe 609 passes through the fixing frame 603 and extends to the outside. A mist box 6010 is provided through the bottom of the second discharge pipe 609. An inclined plate 6013 is provided inside the mist box 6010. The mist box 6010 is semi-circular, which makes the pulverized coal fully atomized and fully combusted, improving the utilization rate of fuel. A second mounting frame 6011 is fixedly provided at the bottom of the mist box 6010. The second mounting frame 6011 is fixedly connected to the fixing frame 603. A blower 6012 is fixedly provided at the top of the base 601. The output end of the blower 6012 is connected through the mist box 6010. Two inclined plates 6013 are fixedly provided inside the mist box 6010. An igniter 6014 is provided through one side of the mist box 6010. The igniter 6014 passes through the kiln head cover 4 and extends to the inside of the kiln body 1.

[0044] In some embodiments, according to Figure 3 As shown, the power support component 3 includes a first fixed base 301. Two rotating grooves 302 are opened on the inner side of the first fixed base 301. Two driving wheels 303 are rotatably arranged on the inner side of the rotating grooves 302. A master-slave wheel 304 is rotatably arranged between the two driving wheels 303. The master-slave wheel 304 is fixedly sleeved on the outer side of the kiln body 1. Two third motors 305 are fixedly arranged on the top of the first fixed base 301. A third rotating shaft 306 is provided at the output end of the third motor 305. The third rotating shaft 306 passes through the driving wheel 303 and is fixedly connected to the driving wheel 303.

[0045] In some embodiments, according to Figure 1 As shown, the third rotating shaft 306 passes through one end of the driving wheel 303 and is rotatably provided with a fixed plate 307. The fixed plate 307 is fixedly connected to the first fixed seat 301. Two secondary driven wheels 308 are fixedly sleeved on the outside of the kiln body 1. The bottom of the two secondary driven wheels 308 is provided with a slide rail 309, and the bottom of the slide rail 309 is fixedly provided with a second fixed seat 301.

[0046] The working principle of this utility model is as follows: In the preparation stage, the staff inputs coal powder into the coal powder box 604 and simultaneously inputs the material into the preheating box 906. Then, the blower 6012 and the second motor 605 are started. The second motor 605 drives the second rotating shaft 606 and the semi-circular plate 607 to rotate, controlling the input speed and amount of coal powder. The third motor 305 is started, and the third motor 305 drives the drive wheel 303 to rotate. The drive wheel 303 drives the master-slave wheel 304 to rotate. At this time, the slave wheel 308 also rotates on the slide rail 309 at the same time, thereby causing the kiln body 1 to rotate counterclockwise at a uniform and slow speed.

[0047] At this time, the pulverized coal enters the mist box 6010 through the second discharge pipe 609, and the blower 6012 outputs to the mist box 6010. Due to the inclined plate 6013 and the semi-circular shape of the mist box 6010, the pulverized coal is fully atomized. The blown pulverized coal is ignited by the igniter 6014, which outputs heat to the kiln body 1. The exhaust gas generated in this process moves upward due to pressure. The exhaust gas enters the exhaust pipe 905 through the kiln body 1 and enters the annular tube tower 904 to preheat the material in the preheating box 906. When the preheating is sufficient;

[0048] Open the automatic valve 9010, and the preheated material enters the kiln body 1 through the discharge pipe. At this time, start the first motor 802. The first motor 802 drives the first rotating shaft 803 to rotate. The first rotating shaft 803 drives the baffle 804 to rotate clockwise at a uniform speed to strike the material, which has been broken up and stuck together, improving the uniformity of heating and improving the working accuracy.

[0049] After a series of processes, the material is discharged through the discharge port 5 and enters the receiving box 602 for material collection.

Claims

1. A rotary kiln for sintering ceramic aggregate with heat recovery and insulation, comprising a kiln body (1), characterized in that: Multiple protrusions (2) are fixedly provided on the inner side of the kiln body (1), and a power support component (3) is provided on the outer side of the kiln body (1). The protrusion (2) is provided with a kiln head cover (4) on the left side. The kiln head cover (4) is rotatably connected to the kiln body (1). A discharge port (5) is provided at the bottom left side of the kiln head cover (4). A combustion material collection component (6) is provided on one side of the discharge port (5). The protrusion (2) is provided with a kiln tail cover (7) on the right side, and a preheating inner swirl assembly is provided on one side of the kiln tail cover (7); The preheating inner rotation assembly includes an inner rotation component (8) and a preheating component (9), with the inner rotation component (8) disposed at the bottom of the preheating component (9).

2. The rotary kiln for sintering ceramic aggregate with heat recovery and insulation according to claim 1, characterized in that: The preheating component (9) includes a base (901), a plurality of fixed columns (902) are fixedly provided on the top of the base (901), and an installation shell (903) is fixedly provided on the top of the base (901). The tops of the plurality of fixed columns (902) are fixedly connected to the bottom of the installation shell (903). An annular tube tower (904) is located inside the installation shell (903). An exhaust pipe (905) is provided through one side of the bottom of the annular tube tower (904). The exhaust pipe (905) passes through the installation shell (903) and extends to the outside to be connected to the kiln tail cover (7). A preheating box (906) is provided inside the annular tube tower (904).

3. The rotary kiln for sintering ceramic aggregate with heat recovery and insulation according to claim 2, characterized in that: The preheating box (906) is fixedly connected to the mounting shell (903). An electrostatic precipitator (907) is fixedly installed on the top of the preheating box (906). The electrostatic precipitator (907) is connected to the top of the annular tube tower (904). An inlet (908) is opened on one side of the mounting shell (903). A first discharge pipe (909) is provided through the bottom of the preheating box (906). The first discharge pipe (909) passes through the mounting shell (903) and extends to the outside to be connected to the kiln tail cover (7). An automatic valve (9010) is provided on the first discharge pipe (909).

4. The rotary kiln for sintering ceramsite support with heat recovery and insulation according to claim 1, characterized in that: The inner rotating component (8) includes a first mounting frame (801), which is fixedly connected to the bottom of the mounting shell (903). A first motor (802) is mounted on the top of the first mounting frame (801). A first rotating shaft (803) is provided at the output end of the first motor (802). The first rotating shaft (803) passes through the kiln tail cover (7) and extends to the inside to be rotatably connected to the kiln head cover (4). A plurality of baffles (804) are fixedly provided at the bottom of the first rotating shaft (803). The plurality of baffles (804) are evenly arranged between the plurality of protrusions (2).

5. The rotary kiln for sintering ceramic aggregate support with heat recovery and insulation according to claim 1, characterized in that: The combustible material collection component (6) includes a base (601), a collection box (602) is installed on one side of the base (601), a fixing frame (603) is fixedly provided at the bottom of the base (601), a coal powder box (604) is fixedly provided at the top of the fixing frame (603), a second motor (605) is fixedly provided at the top of the coal powder box (604), a second rotating shaft (606) is provided at the output end of the second motor (605), the second rotating shaft (606) passes through the coal powder box (604) and extends to the inside, a semi-circular plate (607) is fixedly provided at the bottom end of the second rotating shaft (606), a scraper (608) is provided on one side of the semi-circular plate (607) and is fixedly connected to the second rotating shaft (606).

6. The rotary kiln for sintering ceramsite support with heat recovery and insulation according to claim 5, characterized in that: The bottom of the pulverized coal box (604) is provided with a second discharge pipe (609), which passes through the fixed frame (603) and extends to the outside. The bottom of the second discharge pipe (609) is provided with a mist box (6010), and the bottom of the mist box (6010) is provided with a second mounting frame (6011). The second mounting frame (6011) is fixedly connected to the fixed frame (603). The top of the base (601) is provided with a blower (6012), and the output end of the blower (6012) is connected to the mist box (6010). The inside of the mist box (6010) is provided with two inclined plates (6013). One side of the mist box (6010) is provided with an igniter (6014), which passes through the kiln head cover (4) and extends to the inside of the kiln body (1).

7. The rotary kiln for sintering ceramic aggregate support with heat recovery and insulation according to claim 1, characterized in that: The power support component (3) includes a first fixed seat (301), with two rotating grooves (302) on the inner side of the first fixed seat (301). Two drive wheels (303) are rotatably provided on the inner side of the rotating grooves (302), and a master-slave wheel (304) is rotatably provided between the two drive wheels (303). The master-slave wheel (304) is fixedly sleeved on the outer side of the kiln body (1). Two third motors (305) are fixedly provided on the top of the first fixed seat (301). A third rotating shaft (306) is provided at the output end of the third motor (305). The third rotating shaft (306) passes through the drive wheel (303) and is fixedly connected to the drive wheel (303).

8. The rotary kiln for sintering ceramic aggregate support with heat recovery and insulation according to claim 7, characterized in that: The third rotating shaft (306) passes through one end of the driving wheel (303) and is rotatably provided with a fixed plate (307). The fixed plate (307) is fixedly connected to the first fixed seat (301). Two secondary driven wheels (308) are fixedly sleeved on the outside of the kiln body (1). The bottom of the two secondary driven wheels (308) is provided with a slide rail (309). The bottom of the slide rail (309) is fixedly provided with a second fixed seat (3010).

Images