Automatic discharging device of rotary furnace with self-cooling function

Abstract

The present application relates to rotary furnace kiln technical field, and disclose a kind of automatic discharge device of rotary furnace kiln with self-cooling function, including cooling conveyor, cooling cylinder, combustion cylinder, kiln body and kiln foot connected in sequence, cooling conveyor is connected with water storage tank.Cooling conveyor inside outer spiral shaft is equipped with water pipe, water pipe, spiral blade is equipped with backflow port, and with water storage tank constitutes circulating cooling system;Kiln body is driven to rotate by large gear ring, pinion, speed reducer and motor, and is linked cooling cylinder and outer spiral shaft by sleeve joint tooth bar.Working, material is entered kiln body from kiln foot feed inlet, heated after combustion cylinder, in cooling cylinder and cooling conveyor by spiral blade push and unload, while cooling water is circulated in spiral shaft and absorbs heat, realize unloading and self-cooling synchronous operation.The device solves the problem of traditional unloading device without self-cooling, low efficiency, with compact structure, cooling efficient, high degree of automation, energy utilization rate and other advantages.

Description

Technical Field

[0001] This invention relates to the field of rotary kiln technology, and more specifically to an automatic unloading device for rotary kilns with self-cooling function. Background Technology

[0002] In industries such as cement, metallurgy, and chemicals, rotary kilns are commonly used high-temperature processing equipment. During the unloading process of rotary kilns, the discharged material is usually at a high temperature, which can easily damage the unloading equipment, shorten its service life, and also pose certain safety hazards. Most existing rotary kiln unloading devices lack an effective self-cooling mechanism, requiring additional cooling equipment, which increases equipment costs and floor space; moreover, some unloading devices have low levels of automation and low unloading efficiency, making it difficult to meet the needs of large-scale production. Therefore, there is a need for a rotary kiln unloading device that can achieve self-cooling and automatic unloading. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic unloading device for rotary kilns with self-cooling function to solve the problems existing in the background art.

[0004] The present invention provides the following technical solution: an automatic unloading device for a rotary kiln with self-cooling function, comprising a cooling conveyor, one end of which is movably connected to a cooling cylinder, the other end of which is fixedly connected to a combustion cylinder, the other end of which is fixedly connected to a kiln body, the other end of which is movably connected to a kiln foot, and the other end of the cooling conveyor is fixedly connected to a water storage tank.

[0005] Furthermore, the lower part of the cooling conveyor is fixedly connected to a discharge port, the lower part of the cooling conveyor is provided with a first support, the cooling conveyor is fixedly connected to the first support, an outer spiral shaft is movably connected inside the cooling conveyor, spiral blades are fixedly connected to the surface of the outer spiral shaft, a water supply pipe is provided inside the outer spiral shaft, an inner spiral shaft is fixedly connected inside the outer spiral shaft, a sleeve gear is provided at one end of the outer spiral shaft, and a return port is provided on the spiral blades.

[0006] Furthermore, a first belt is fixedly connected to the outer surface of the cooling cylinder, a first drag wheel is provided at the lower part of the cooling cylinder, the cooling cylinder is slidably connected to the first drag wheel, a first support frame is fixedly connected inside the cooling cylinder, a socket tooth groove is provided in the middle of the first support frame, and a socket tooth rod is fixedly connected to one end of the first support frame through the socket tooth groove.

[0007] Furthermore, a primary air fan is movably connected inside the combustion cylinder, a second support is provided at the lower part of the combustion cylinder, the combustion cylinder is fixedly connected to the second support, the primary air fan is fixedly connected to the second support, a sealing ring is fixedly connected to the surface of the combustion cylinder, and the cooling cylinder is fixedly connected to the combustion cylinder through the sealing ring.

[0008] Furthermore, a second belt is fixedly connected to one outer surface of the kiln body, and a second traction wheel is provided at the lower part of the second belt. The second belt is slidably connected to the second traction wheel. A large gear ring is fixedly connected to the middle outer surface of the kiln body, and a small gear is provided at the lower part of the large gear ring. The large gear ring and the small gear are engaged. A reducer is movably connected to one side of the small gear, and a motor is movably connected to the other side of the reducer. A third belt is fixedly connected to the other outer surface of the kiln body, and a third traction wheel is provided at the lower part of the third belt. The third belt is slidably connected to the third traction wheel. One side of the kiln body is fixedly connected to the combustion chamber through a sealing collar.

[0009] Furthermore, a feed inlet is fixedly connected to the other side of the kiln foot, an air inlet is provided on the upper surface of the kiln foot, and a third support is provided at the lower part of the kiln foot, with the kiln foot fixedly connected to the third support.

[0010] Furthermore, the surface of the water storage tank is provided with an outlet, the surface of the water storage tank is provided with an inlet, the water delivery pipe is fixedly connected to the outlet through a flexible hose, and the water supply pipe is fixedly connected to the inlet through a flexible hose.

[0011] Furthermore, a second support frame is fixedly connected inside the kiln body. One end of the second support frame is fixedly connected to a sleeve toothed rod, and the other end of the sleeve toothed rod is fixedly connected to a first support frame. The other end of the first support frame is engaged with a sleeve gear through a sleeve tooth groove, so that the first support frame is fixedly connected to the outer spiral shaft.

[0012] The technical effects and advantages of this invention are as follows:

[0013] 1. This invention achieves self-cooling during the unloading process by constructing a water circulation system consisting of a water supply pipe, a water delivery pipe, and a return port inside the external spiral shaft of the cooling conveyor. This completely solves the problem of traditional unloading devices relying on external cooling equipment. The cooling water circulates back after sufficient heat exchange with the high-temperature material inside the spiral blades, preventing equipment damage due to high temperatures and extending equipment lifespan by more than 30%. Taking cement rotary kiln unloading as an example, traditional devices require additional cooling towers, cooling water pumps, and other equipment. This invention reduces the investment in such equipment, lowering equipment purchase costs by approximately 40%, while also saving floor space and improving factory space utilization.

[0014] 2. This invention drives the kiln body to rotate through the cooperation of a motor, reducer, pinion, and large gear ring. At the same time, the second support frame inside the kiln body is connected to the first support frame of the cooling cylinder through a sleeved gear rod, which in turn drives the outer spiral shaft to rotate. This realizes the entire process of material entering the kiln body from the kiln foot inlet, being heated by the combustion cylinder, and then automatically unloading in the cooling cylinder and cooling conveyor. This improves the automation level and efficiency of unloading and meets the needs of large-scale production.

[0015] 3. In this invention, the cooling cylinder and the combustion cylinder, as well as the kiln body and the combustion cylinder, are all fixedly connected by sealing collars, which effectively ensures the airtightness of the device, reduces heat loss, and improves energy utilization efficiency. At the same time, the components are stably connected by the cooperation of tires and trolleys, ensuring the stability of the device operation.

[0016] 4. The self-cooling system of this invention adopts a closed-loop water circulation, which reduces the contamination of the cooling system by external impurities. The self-cooling system reduces the energy consumption of external cooling equipment, and the water circulation design reduces water waste. Compared with traditional cooling methods, water resources can be saved by up to 70%. At the same time, the good airtightness of the device reduces heat loss, improves energy utilization, and reduces energy consumption per unit product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the cooling conveyor structure of the present invention.

[0019] Figure 3 This is an exploded view of the cooling transport machine structure of the present invention.

[0020] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the cooling transport machine of the present invention.

[0021] Figure 5 This is a schematic diagram of the cooling cylinder structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the combustion chamber structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the rotary kiln structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the internal structure of the present invention.

[0025] The attached figures are labeled as follows: 1. Cooling conveyor; 101. Discharge port; 102. First support; 103. Outer spiral shaft; 1031. Water supply pipe; 1032. Water delivery pipe; 1033. Inner spiral shaft; 1034. Sleeve gear; 104. Spiral blade; 1041. Return port; 2. Cooling cylinder; 201. First belt; 202. First traction wheel; 203. First support frame; 2031. Sleeve tooth groove; 204. Sleeve toothed rod; 3. Combustion cylinder; 301. Primary... 4. Air blower; 302. Second support; 303. Sealing ring; 4. Kiln body; 401. Second belt; 4011. Second trolley; 402. Large gear ring; 4021. Small gear; 4022. Reducer; 4023. Motor; 403. Third belt; 4031. Third trolley; 404. Second support frame; 5. Kiln foot; 501. Feed inlet; 502. Air inlet; 503. Third support; 6. Water storage tank; 601. Water outlet; 602. Water inlet. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automatic unloading device for rotary kiln with self-cooling function involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Reference Figure 1 The present invention provides an automatic unloading device for a rotary kiln with self-cooling function, including a cooling conveyor 1, a cooling cylinder 2 movably connected to one end of the cooling conveyor 1, a combustion cylinder 3 fixedly connected to the other end of the cooling cylinder 2, a kiln body 4 fixedly connected to the other end of the combustion cylinder 3, a kiln foot 5 movably connected to the other end of the kiln body 4, and a water storage tank 6 fixedly connected to the other end of the cooling conveyor 1.

[0028] Reference Figure 2 , Figure 3 and Figure 4The cooling conveyor 1 includes a discharge port 101 fixedly connected to its lower part, a first support 102 fixedly connected to its lower part, an outer spiral shaft 103 movably connected inside the cooling conveyor 1, spiral blades 104 fixedly connected to the surface of the outer spiral shaft 103, a water supply pipe 1031 and a water delivery pipe 1032 inside the outer spiral shaft 103, an inner spiral shaft 1033 fixedly connected inside the outer spiral shaft 103, a sleeve gear 1034 at one end of the outer spiral shaft 103, a return port 1041 on the spiral blades 104, a water outlet 601 and a water inlet 602 on the surface of the water storage tank 6, a water supply pipe 1031 fixedly connected to the water outlet 601 via a hose, and a water delivery pipe 1032 fixedly connected to the water inlet 602 via a hose.

[0029] The continuous conveying and unloading of materials is achieved through the rotational transmission of the outer spiral shaft 103 and the spiral blades 104, improving unloading efficiency. A water circulation system via the water supply pipe 1031, water delivery pipe 1032, and return port 1041 synchronously cools high-temperature materials and equipment components, preventing overheating damage. The structural design of the discharge port 101 and the first support 102 precisely controls the material output position and stably supports the equipment. A closed-loop connection between the water outlet 601, water inlet 602, and water supply pipes 1031 and 1032 forms a self-cooling water circulation system, reducing equipment cooling costs.

[0030] Reference Figure 1 and Figure 5 The cooling cylinder 2 includes a first belt 201 fixedly connected to the outer surface of the cooling cylinder 2, a first drag wheel 202 provided at the lower part of the cooling cylinder 2, the cooling cylinder 2 being slidably connected to the first drag wheel 202, a first support frame 203 fixedly connected inside the cooling cylinder 2, a socket tooth groove 2031 provided in the middle of the first support frame 203, and a socket tooth rod 204 fixedly connected to one end of the first support frame 203 through the socket tooth groove 2031.

[0031] The sliding support between the first belt 201 and the first traction wheel 202 ensures stable rotation of the cooling cylinder 2, promoting uniform cooling of the material. The rotational power is transmitted to the outer spiral shaft 103 via gear meshing of the first support frame 203, the sleeve tooth groove 2031, and the sleeve toothed rod 204, achieving energy-saving linkage between unloading and cooling.

[0032] Reference Figure 1 and Figure 6The combustion cylinder 3 includes a primary air fan 301 movably connected inside the combustion cylinder 3, a second support 302 provided at the lower part of the combustion cylinder 3, the combustion cylinder 3 being fixedly connected to the second support 302, the primary air fan 301 being fixedly connected to the second support 302, a sealing ring 303 being fixedly connected to the surface of the combustion cylinder 3, and the cooling cylinder 2 being fixedly connected to the combustion cylinder 3 through the sealing ring 303.

[0033] The primary air blower 301 provides ample air for combustion, improving fuel combustion efficiency and reducing energy consumption. The connection and fixation between the sealing ring 303 and the second support 302 ensures system sealing and combustion stability, minimizing heat loss.

[0034] Reference Figure 1 , Figure 6 and Figure 7 The kiln body 4 includes a second belt 401 fixedly connected to one outer surface of the kiln body 4. A second pulley 4011 is located at the lower part of the second belt 401, and the second belt 401 is slidably connected to the second pulley 4011. A large gear ring 402 is fixedly connected to the middle outer surface of the kiln body 4. A small gear 4021 is located at the lower part of the large gear ring 402, and the large gear ring 402 and the small gear 4021 are engaged. A reducer 4022 is movably connected to one side of the small gear 4021, and a motor 4023 is movably connected to the other side of the reducer 4022. A third belt 403 is fixedly connected to the outer surface of the other side of the kiln body 4. A third traction wheel 4031 is provided at the lower part of the third belt 403. The third belt 403 is slidably connected to the third traction wheel 4031. One side of the kiln body 4 is fixedly connected to the combustion cylinder 3 through a sealing ring 303. A kiln foot 5 is movably connected to the other side of the kiln body 4. A feed inlet 501 is fixedly connected to the other side of the kiln foot 5. An air inlet 502 is provided on the upper surface of the kiln foot 5. A third support 503 is provided at the lower part of the kiln foot 5. The kiln foot 5 is fixedly connected to the third support 503.

[0035] The kiln body 4 rotates smoothly through the support of the second belt 401, the third belt 403, and corresponding rollers, along with the transmission of the large gear ring 402 and the small gear 4021, ensuring uniform heating of the material. The speed of the kiln body 4 is precisely controlled by the speed regulation of the motor 4023 and the reducer 4022 to adapt to different material processing needs. Power is transmitted to the cooling system through the connection between the second support frame 404 and the sleeved gear 204, ensuring the coordinated operation of all components.

[0036] Reference Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8The second support frame 404 is fixedly connected inside the kiln body 4. One end of the second support frame 404 is fixedly connected to the sleeve toothed rod 204, and the other end of the sleeve toothed rod 204 is fixedly connected to the first support frame 203. The other end of the first support frame 203 is engaged with the sleeve gear 1034 through the sleeve tooth groove 2031, so that the first support frame 203 is fixedly connected to the outer spiral shaft 103.

[0037] Through the mechanical meshing and transmission of the second support frame 404, the sleeve toothed rod 204, the first support frame 203, and the outer spiral shaft 103, the coordinated operation of unloading, cooling, and combustion functions is realized, reducing energy loss and improving the degree of automation.

[0038] Working principle of the invention:

[0039] Material transfer process: The material first enters the kiln body 4 through the feed inlet 501 on the kiln foot 5. The kiln body 4 rotates continuously under the action of the drive system consisting of motor 4023, reducer 4022, pinion 4021 and large gear ring 402. During the rotation, the material rolls and moves along the inner wall of the kiln body 4, moving towards the combustion chamber 3. After entering the combustion chamber 3, the primary air fan 301 blows air into the chamber, providing sufficient combustion-supporting gas for the combustion or heating process of the material, allowing the material to complete the corresponding process treatment in a high-temperature environment. The treated high-temperature material continues to enter the cooling chamber 2. In the cooling chamber 2, the material begins to cool down initially, and then the material enters the cooling conveyor 1. The outer spiral shaft 103 inside the cooling conveyor 1 rotates under the drive of the transmission system, and the spiral blades 104 on the surface of the outer spiral shaft 103 push the material to move along the axial direction of the cooling conveyor 1. Finally, the material is discharged from the discharge port 101 at the bottom, completing the entire material transfer process.

[0040] The self-cooling system operates as follows: The self-cooling system uses a water storage tank 6 as its core, constructing a cooling water circulation loop. The outlet 601 on the surface of the water storage tank 6 is connected to the water supply pipe 1031 inside the outer spiral shaft 103 via a flexible hose, while the inlet 602 is connected to the water supply pipe 1032 via a flexible hose. When the device is running, cooling water flows out from the outlet 601 of the water storage tank 6 and enters the outer spiral shaft 103 through the water supply pipe 1031. As the outer spiral shaft 103 rotates, the cooling water flows inside the spiral blades 104, fully exchanging heat with the high-temperature material and absorbing a large amount of heat emitted by the material. The cooled water, after absorbing heat, enters the water supply pipe 1032 through the return port 1041 on the spiral blades 104 and flows back to the inlet 602 of the water storage tank 6 along the water supply pipe 1032. Inside the water storage tank 6, the cooling water is cooled down and then flows out from the outlet 601 to start a new cycle, thereby continuously cooling the cooling conveyor 1 and ensuring stable operation of the equipment in a high-temperature unloading environment.

[0041] Power transmission mechanism: The power transmission system uses motor 4023 as the power source. The power output from motor 4023 is reduced and amplified by reducer 4022 before being transmitted to pinion 4021. Pinion 4021 meshes with large gear ring 402 on the outer surface of kiln body 4, driving kiln body 4 to rotate around its axis. The second support frame 404, fixedly connected inside kiln body 4, is connected to the first support frame 203 inside cooling cylinder 2 via sleeve gear 204. When kiln body 4 rotates, the second support frame 404 and sleeve gear 204 drive the first support frame 203 to rotate synchronously. The sleeve groove 2031 in the middle of the first support frame 203 engages with the sleeve gear 1034 at one end of the outer spiral shaft 103, allowing the rotation of the first support frame 203 to be transmitted to the outer spiral shaft 103, thereby driving the outer spiral shaft 103 to rotate. In this way, relying on only one motor 4023 as the power input, the coordinated operation of the kiln body 4 rotation, material transmission and cooling conveyor 1 is realized, which simplifies the power system structure and improves the transmission efficiency and the stability of the device operation.

[0042] The auxiliary structure functions as follows: The first belt 201 on the outer surface of the cooling cylinder 2 engages with the first drag wheel 202 at the bottom. The second belt 401 and the third belt 403 of the kiln body 4 engage with the second drag wheel 4011 and the third drag wheel 4031, respectively. This combination of belts and drag wheels provides stable support for the rotation of the cooling cylinder 2 and the kiln body 4, reduces frictional resistance during rotation, and ensures smooth operation of the equipment. The combustion cylinder 3 is fixedly connected to the cooling cylinder 2, and the kiln body 4 is fixedly connected to the combustion cylinder 3 by a sealing collar 303, which effectively prevents high-temperature gas leakage, ensures the airtightness of the device, reduces heat loss, improves energy utilization efficiency, and also avoids the safety hazards caused by high-temperature gas leakage.

[0043] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic unloading device for a rotary kiln with self-cooling function, comprising a cooling conveyor (1), characterized in that: One end of the cooling conveyor (1) is movably connected to a cooling cylinder (2), and the other end of the cooling cylinder (2) is fixedly connected to a combustion cylinder (3). The other end of the combustion cylinder (3) is fixedly connected to a kiln body (4), and the other end of the kiln body (4) is movably connected to a kiln foot (5). The other end of the cooling conveyor (1) is fixedly connected to a water storage tank (6). The lower part of the cooling conveyor (1) is fixedly connected to a discharge port (101). The lower part of the cooling conveyor (1) is provided with a first support (102). The cooling conveyor (1) is fixedly connected to the first support (102). On the 02), the cooling conveyor (1) is internally connected to an outer spiral shaft (103), the surface of the outer spiral shaft (103) is fixedly connected to a spiral blade (104), the outer spiral shaft (103) is internally provided with a water supply pipe (1031), the outer spiral shaft (103) is internally provided with a water delivery pipe (1032), the outer spiral shaft (103) is internally fixedly connected to an inner spiral shaft (1033), one end of the outer spiral shaft (103) is provided with a sleeve gear (1034), and the spiral blade (104) is provided with a return port (1041). The outer surface of the cooling cylinder (2) is fixedly connected to a first belt (201), and the lower part of the cooling cylinder (2) is provided with a first drag wheel (202). The cooling cylinder (2) is slidably connected to the first drag wheel (202). The interior of the cooling cylinder (2) is fixedly connected to a first support frame (203). The middle of the first support frame (203) is provided with a socket tooth groove (2031). One end of the first support frame (203) is fixedly connected to a socket tooth rod (204) through the socket tooth groove (2031). The surface of the water storage tank (6) is provided with an outlet (601) and an inlet (602). The water supply pipe (1031) is fixedly connected to the outlet (601) through a flexible hose, and the water delivery pipe (1032) is fixedly connected to the inlet (602) through a flexible hose. The kiln body (4) is internally fixedly connected to a second support frame (404). One end of the second support frame (404) is fixedly connected to a sleeve toothed rod (204), and the other end of the sleeve toothed rod (204) is fixedly connected to a first support frame (203). The other end of the first support frame (203) is engaged with a sleeve gear (1034) through a sleeve tooth groove (2031), so that the first support frame (203) is fixedly connected to the outer spiral shaft (103).

2. The automatic unloading device for a rotary kiln with self-cooling function according to claim 1, characterized in that: The combustion cylinder (3) is movably connected to a primary air fan (301). A second support (302) is provided at the lower part of the combustion cylinder (3). The combustion cylinder (3) is fixedly connected to the second support (302). The primary air fan (301) is fixedly connected to the second support (302). A sealing ring (303) is fixedly connected to the surface of the combustion cylinder (3). The cooling cylinder (2) and the combustion cylinder (3) are fixedly connected through the sealing ring (303).

3. The automatic unloading device for a rotary kiln with self-cooling function according to claim 1, characterized in that: A second belt (401) is fixedly connected to one side of the outer surface of the kiln body (4). A second trolley (4011) is provided at the lower part of the second belt (401). The second belt (401) is slidably connected to the second trolley (4011).

4. The automatic unloading device for a rotary kiln with self-cooling function according to claim 1, characterized in that: A large gear ring (402) is fixedly connected to the middle outer surface of the kiln body (4). A small gear (4021) is provided at the lower part of the large gear ring (402). The large gear ring (402) is engaged with the small gear (4021). A speed reducer (4022) is movably connected to one side of the small gear (4021), and a motor (4023) is movably connected to the other side of the speed reducer (4022).

5. The automatic unloading device for a rotary kiln with self-cooling function according to claim 1, characterized in that: A third wheel belt (403) is fixedly connected to the outer surface of the other side of the kiln body (4). A third trolley (4031) is provided at the lower part of the third wheel belt (403). The third wheel belt (403) is slidably connected to the third trolley (4031). One side of the kiln body (4) is fixedly connected to the combustion cylinder (3) through a sealing collar (303).

6. The automatic unloading device for a rotary kiln with self-cooling function according to claim 1, characterized in that: A feed inlet (501) is fixedly connected to the other side of the kiln foot (5), an air inlet (502) is provided on the upper surface of the kiln foot (5), and a third support (503) is provided at the lower part of the kiln foot (5). The kiln foot (5) is fixedly connected to the third support (503).

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