A roller heating furnace for producing a fracturing proppant

Abstract

The application relates to the technical field of drum heating furnaces, and discloses a drum heating furnace for fracturing proppant production, which comprises a base, a supporting frame is fixedly installed at the top of the base, a heating furnace is rotatably installed on the supporting frame, a drum is arranged in the heating furnace, a material pipe is arranged at the left side of the drum, the left end of the material pipe extends to the outside of the heating furnace, a fixed plate is fixedly installed at the top of the heating furnace, a motor is fixedly installed at the right side of the fixed plate, the output shaft of the motor extends to the left side of the fixed plate, and a driving mechanism is arranged between the output shaft of the motor and the material pipe. The application has the following advantages and effects: the stirring mechanism is arranged, the material can be continuously stirred by the stirring plate, the static stacking state of the material is broken, each particle of the material can fully contact the inner wall of the drum and a high-temperature environment, the problem of uneven local heating can be effectively solved, the calcination consistency of the proppant particles is ensured, and the product quality is improved.

Description

Technical Field

[0001] This application relates to the field of drum heating furnace technology, and in particular to a drum heating furnace for fracturing proppant production. Background Technology

[0002] In the field of oil and gas extraction, fracturing proppant is a key material in hydraulic fracturing processes for unconventional oil and gas extraction such as shale gas and tight oil, and its quality directly affects fracturing efficiency and oil and gas production. In the production process of fracturing proppant, the drum heater is the core equipment for achieving high-temperature calcination of the proppant, imparting it with high strength and high wear resistance. However, current traditional drum heaters face many technical bottlenecks in practical applications, making it difficult to meet the ever-increasing production demands and quality standards.

[0003] In practical use, it has been found that existing drum heating furnaces generally suffer from uneven heating of materials. Traditional equipment mostly adopts a single drum rotation method, and the material moves along a fixed trajectory inside the drum, which easily leads to accumulation. This results in some materials being over-calcined while others are under-calcined, seriously affecting the quality uniformity of the proppant. Therefore, we propose a drum heating furnace for fracturing proppant production to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies, such as uneven heating of materials, easy accumulation in the drum, resulting in over-calcination of some materials and insufficient calcination of others, which seriously affects the quality uniformity of proppant. Therefore, this application proposes a drum heating furnace for fracturing proppant production.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a drum heating furnace for fracturing proppant production, comprising a base, a support frame fixedly installed on the top of the base, a heating furnace rotatably installed on the support frame, a drum disposed inside the heating furnace, a material pipe disposed on the left side of the drum, the left end of the material pipe extending to the outside of the heating furnace, a fixed plate fixedly installed on the top of the heating furnace, a motor fixedly installed on the right side of the fixed plate, the motor output shaft extending to the left side of the fixed plate, a drive mechanism disposed between the motor output shaft and the material pipe; a rolling mechanism disposed between the drum and the heating furnace, a fixed shaft fixedly installed on the inner wall of the right side of the heating furnace, a toggle mechanism disposed inside the drum, a sliding plate fixedly installed at the bottom of the heating furnace, and a lifting mechanism disposed between the base and the sliding plate.

[0006] A further configuration of this application is as follows: the driving mechanism includes a main gear and a gear disc, the main gear is fixedly sleeved on the motor output shaft, the main gear is located on the left side of the fixed plate, the gear disc is fixedly sleeved on the material pipe, the gear disc is located outside the heating furnace, and the main gear meshes with the gear disc.

[0007] By adopting the above technical solution and by setting up a drive mechanism, the motor can drive the material tube and the drum to rotate synchronously.

[0008] A further configuration of this application is as follows: the actuating mechanism includes an actuating shaft and a feeding plate. The actuating shaft is rotatably mounted on the inner wall of the right side of the drum. The right end of the actuating shaft extends into the heating furnace. A feeding plate is provided on the actuating shaft. The feeding plate is located inside the drum. A transmission mechanism is provided between the actuating shaft and the fixed shaft.

[0009] By adopting the above technical solution and setting up a turning mechanism, the turning shaft can drive the turning plate to rotate, which can realize the continuous turning of the material by the turning plate, breaking the static accumulation state of the material, so that each particle of material can fully contact the inner wall of the drum and the high temperature environment, and effectively solve the problem of uneven local heating.

[0010] A further configuration of this application is as follows: the transmission mechanism includes a transmission gear and a driven gear, a transmission gear is fixedly sleeved on a fixed shaft, a driven gear is fixedly sleeved on a moving shaft, both the transmission gear and the driven gear are located inside the heating furnace, and the transmission gear and the driven gear mesh with each other.

[0011] By adopting the above technical solution and by setting up a transmission mechanism, the actuating shaft can revolve around the fixed shaft and rotate on its own axis.

[0012] A further feature of this application is that the rolling mechanism includes a fixed ring and balls, a fixed ring is fixedly sleeved on the outside of the roller, and balls are tumblingly installed on the outside of the fixed ring, with the balls being adapted to the inner wall of the heating furnace.

[0013] By adopting the above technical solution and setting a rolling mechanism, the balls on the fixed ring can roll into contact with the inner wall of the heating furnace, which can convert sliding friction into rolling friction, greatly reduce rotational resistance, reduce motor load, and ensure smooth drum rotation.

[0014] A further configuration of this application is as follows: the lifting mechanism includes a hydraulic cylinder and a rotating seat. The hydraulic cylinder is fixedly installed on the top of the base and is located on the right side of the support frame. The rotating seat is slidably installed on the bottom of the slide plate. The rotating seat is rotatably connected to the output shaft of the hydraulic cylinder. A sliding mechanism is provided between the rotating seat and the slide plate.

[0015] By adopting the above technical solution and by setting up a lifting mechanism, the hydraulic cylinder output shaft can drive the rotating seat to move when it extends. The slider on the top of the rotating seat slides along the slide groove at the bottom of the slide plate, so that the heating furnace can be slightly adjusted in tilt angle with the support frame as the fulcrum. This can achieve the purpose of discharging material through the material pipe by increasing the tilt angle.

[0016] A further feature of this application is that the sliding mechanism includes a groove and a slider, the bottom of the slide plate is provided with a groove, the top of the rotating seat is provided with a slider, and the slider is slidably connected to the groove.

[0017] By adopting the above technical solution and by setting up a sliding mechanism, the rotating seat can move at the bottom of the skateboard.

[0018] A further feature of this application is that a sealing door is provided on the left side of the material tube, and a handle is provided on the left side of the sealing door.

[0019] By adopting the above technical solution and setting a sealed door, the sealed door can effectively isolate the internal and external environments of the heating furnace, prevent heat leakage and energy loss, and at the same time prevent external cold air from entering and affecting the temperature stability inside the furnace.

[0020] The beneficial effects of this application are:

[0021] (1) Through the cooperation of motor, main gear, gear plate, material pipe and drum, the motor can drive the material pipe and drum to rotate synchronously, and the material can be continuously tumbled in the drum to avoid material accumulation and insufficient calcination. Through the cooperation of fixed ring and ball, the ball can roll contact with the inner wall of heating furnace, which can convert sliding friction into rolling friction, greatly reduce rotational resistance, reduce motor load, and ensure smooth drum rotation, so as to provide a stable motion basis for uniform heating of material.

[0022] (2) Through the cooperation of the fixed shaft, transmission gear, driven gear, actuating shaft and a feeding plate, the actuating shaft can revolve around the fixed shaft and rotate on its own axis. The feeding plate can continuously turn the material, break the static accumulation state of the material, and make each particle of material fully contact the inner wall of the drum and the high temperature environment. This can effectively solve the problem of uneven local heating, ensure the consistency of proppant particle calcination, and improve product quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a drum heating furnace for producing fracturing proppant according to this application;

[0025] Figure 2 This is a bottom view of a drum heating furnace for producing fracturing proppant according to this application;

[0026] Figure 3 This is a schematic diagram of the internal structure of a drum heating furnace for producing fracturing proppant according to this application;

[0027] Figure 4 This is a schematic diagram of the internal structure of the drum of a drum heating furnace for producing fracturing proppant according to this application.

[0028] In the diagram: 1. Base; 101. Support frame; 2. Heating furnace; 3. Roller; 301. Material pipe; 302. Sealing door; 4. Fixing plate; 401. Motor; 402. Main gear; 403. Gear plate; 5. Fixed shaft; 501. Transmission gear; 502. Driven gear; 6. Actuating shaft; 601. Material actuating plate; 7. Fixing ring; 701. Ball bearing; 8. Slide plate; 801. Slide groove; 802. Slider; 9. Hydraulic cylinder; 901. Rotating seat. Detailed Implementation

[0029] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] See Figures 1-4 This application provides a drum heating furnace for fracturing proppant production, including a base 1, a support frame 101 fixedly installed on the top of the base 1, a heating furnace 2 rotatably installed on the support frame 101, a drum 3 disposed inside the heating furnace 2, a material pipe 301 disposed on the left side of the drum 3, the left end of the material pipe 301 extending to the outside of the heating furnace 2, a fixing plate 4 fixedly installed on the top of the heating furnace 2, a motor 401 fixedly installed on the right side of the fixing plate 4, the output shaft of the motor 401 extending to the left side of the fixing plate 4, a drive mechanism disposed between the output shaft of the motor 401 and the material pipe 301; a rolling mechanism disposed between the drum 3 and the heating furnace 2, a fixing shaft 5 fixedly installed on the inner wall of the right side of the heating furnace 2, a toggle mechanism disposed inside the drum 3, a sliding plate 8 fixedly installed at the bottom of the heating furnace 2, and a lifting mechanism disposed between the base 1 and the sliding plate 8.

[0031] Specifically, the drive mechanism includes a main gear 402 and a gear disc 403. The main gear 402 is fixedly sleeved on the output shaft of the motor 401. The main gear 402 is located on the left side of the fixed plate 4. The gear disc 403 is fixedly sleeved on the material pipe 301. The gear disc 403 is located outside the heating furnace 2. The main gear 402 and the gear disc 403 mesh with each other.

[0032] Specifically, the actuating mechanism includes an actuating shaft 6 and a feeding plate 601. The actuating shaft 6 is rotatably mounted on the inner wall of the right side of the drum 3. The right end of the actuating shaft 6 extends into the heating furnace 2. The feeding plate 601 is provided on the actuating shaft 6 and is located inside the drum 3. A transmission mechanism is provided between the actuating shaft 6 and the fixed shaft 5.

[0033] Specifically, the transmission mechanism includes a transmission gear 501 and a driven gear 502. The transmission gear 501 is fixedly sleeved on the fixed shaft 5, and the driven gear 502 is fixedly sleeved on the actuating shaft 6. Both the transmission gear 501 and the driven gear 502 are located inside the heating furnace 2, and the transmission gear 501 and the driven gear 502 mesh with each other.

[0034] Specifically, the rolling mechanism includes a fixed ring 7 and a ball bearing 701. The fixed ring 7 is fixedly sleeved on the outside of the roller 3, and the ball bearing 701 is rolled on the outside of the fixed ring 7. The ball bearing 701 is adapted to the inner wall of the heating furnace 2.

[0035] Specifically, the lifting mechanism includes a hydraulic cylinder 9 and a rotating seat 901. The hydraulic cylinder 9 is fixedly installed on the top of the base 1 and is located on the right side of the support frame 101. The rotating seat 901 is slidably installed on the bottom of the slide plate 8. The rotating seat 901 is rotatably connected to the output shaft of the hydraulic cylinder 9, and a sliding mechanism is provided between the rotating seat 901 and the slide plate 8.

[0036] Specifically, the sliding mechanism includes a groove 801 and a slider 802. The bottom of the slide plate 8 has a groove 801, and the top of the rotating seat 901 has a slider 802. The slider 802 is slidably connected to the groove 801.

[0037] Specifically, a sealing door 302 is provided on the left side of the material pipe 301, and a handle is provided on the left side of the sealing door 302.

[0038] In this application, during operation, the material is first added into the drum 3 through the material pipe 301. Closing the sealing door 302 can effectively isolate the internal and external environments of the heating furnace 2, prevent heat leakage and energy loss, and at the same time prevent external cold air from entering and affecting the temperature stability inside the furnace, providing a sealed thermal environment for subsequent high-temperature calcination. The heating furnace 2 is initially tilted at 3-5° through the cooperation of the support frame 101 and the lifting mechanism, which avoids the possible jamming that may occur when the hydraulic cylinder 9 starts from the horizontal state when adjusting the angle later, ensuring smooth operation of the equipment.

[0039] After the motor 401 is started, its output shaft can drive the main gear 402 to rotate. The main gear 402 meshes with the gear disc 403 to drive the material pipe 301 to rotate synchronously with the drum 3. This allows the material to tumble continuously inside the drum 3, preventing material accumulation and insufficient calcination. When the drum 3 rotates, the balls 701 on its outer fixed ring 7 roll into contact with the inner wall of the heating furnace 2, which can convert sliding friction into rolling friction, greatly reducing rotational resistance and reducing the load on the motor 401 while ensuring the smooth rotation of the drum 3. This provides a stable motion basis for the material to be heated evenly. When the heating furnace 2 is working, it provides a high-temperature environment. While the drum 3 rotates with the material pipe 301, the transmission gear 501 on the fixed shaft 5 meshes with the driven gear 502 on the agitator shaft 6, which can drive the agitator shaft 6 to revolve and rotate around the fixed shaft 5. This enables the agitator shaft 6 to drive the agitator plate 601 to rotate inside the drum 3. The agitator plate 601 can continuously turn the material, breaking the static accumulation state of the material, so that each particle of material can fully contact the inner wall of the drum 3 and the high-temperature environment. This can effectively solve the problem of uneven local heating, ensure the consistency of proppant particle calcination, and improve product quality.

[0040] When material discharge is required, the sealing door 302 is opened and the hydraulic cylinder 9 is activated. Its output shaft extends and retracts, driving the rotating seat 901 to move. The slider 802 on the top of the rotating seat 901 slides along the groove 801 at the bottom of the slide plate 8, allowing the heating furnace 2 to finely adjust its tilt angle with the support frame 101 as the fulcrum. By increasing the tilt angle, combined with the rotation of the drum 3 and the pushing of the material pusher plate 601, the speed at which the material moves towards the discharge end can be accelerated; by decreasing the angle, the material residence time is extended, thereby achieving the purpose of precise control of the discharge speed. The initial tilt design allows the hydraulic cylinder 9 to complete the adjustment with only a small movement, with stable force and no jamming, ensuring a continuous and smooth discharge process, and ultimately allowing the qualified calcined proppant to be efficiently discharged from the drum 3.

Claims

1. A drum heating furnace for producing fracturing proppant, characterized in that, Includes a base (1), on which a support frame (101) is fixedly installed, and a heating furnace (2) is rotatably installed on the support frame (101). A roller (3) is provided inside the heating furnace (2), and a material pipe (301) is provided on the left side of the roller (3). The left end of the material pipe (301) extends to the outside of the heating furnace (2). A fixing plate (4) is fixedly installed on the top of the heating furnace (2), and a motor (401) is fixedly installed on the right side of the fixing plate (4). The output shaft of the motor (401) extends to the left side of the fixing plate (4), and a drive mechanism is provided between the output shaft of the motor (401) and the material pipe (301). A rolling mechanism is provided between the roller (3) and the heating furnace (2). A fixed shaft (5) is fixedly installed on the inner wall of the right side of the heating furnace (2). A toggle mechanism is provided inside the roller (3). A sliding plate (8) is fixedly installed at the bottom of the heating furnace (2). A lifting mechanism is provided between the base (1) and the sliding plate (8).

2. The drum heating furnace for fracturing proppant production according to claim 1, characterized in that: The drive mechanism includes a main gear (402) and a gear disc (403). The main gear (402) is fixedly sleeved on the output shaft of the motor (401). The main gear (402) is located on the left side of the fixed plate (4). The gear disc (403) is fixedly sleeved on the material pipe (301). The gear disc (403) is located outside the heating furnace (2). The main gear (402) meshes with the gear disc (403).

3. The drum heating furnace for fracturing proppant production according to claim 1, characterized in that: The actuating mechanism includes an actuating shaft (6) and a feeding plate (601). The actuating shaft (6) is rotatably mounted on the inner wall of the right side of the drum (3). The right end of the actuating shaft (6) extends into the heating furnace (2). The feeding plate (601) is provided on the actuating shaft (6). The feeding plate (601) is located inside the drum (3). A transmission mechanism is provided between the actuating shaft (6) and the fixed shaft (5).

4. A drum heating furnace for producing fracturing proppant according to claim 3, characterized in that: The transmission mechanism includes a transmission gear (501) and a driven gear (502). The transmission gear (501) is fixedly sleeved on the fixed shaft (5), and the driven gear (502) is fixedly sleeved on the actuating shaft (6). The transmission gear (501) and the driven gear (502) are both located inside the heating furnace (2), and the transmission gear (501) and the driven gear (502) mesh with each other.

5. A drum heating furnace for producing fracturing proppant according to claim 1, characterized in that: The rolling mechanism includes a fixed ring (7) and a ball (701). The fixed ring (7) is fixedly sleeved on the outside of the roller (3), and the ball (701) is rolled on the outside of the fixed ring (7). The ball (701) is adapted to the inner wall of the heating furnace (2).

6. A drum heating furnace for producing fracturing proppant according to claim 1, characterized in that: The lifting mechanism includes a hydraulic cylinder (9) and a rotating seat (901). The hydraulic cylinder (9) is fixedly installed on the top of the base (1). The hydraulic cylinder (9) is located on the right side of the support frame (101). The rotating seat (901) is slidably installed on the bottom of the slide plate (8). The rotating seat (901) is rotatably connected to the output shaft of the hydraulic cylinder (9). A sliding mechanism is provided between the rotating seat (901) and the slide plate (8).

7. A drum heating furnace for producing fracturing proppant according to claim 6, characterized in that: The sliding mechanism includes a groove (801) and a slider (802). The bottom of the slide plate (8) is provided with a groove (801), and the top of the rotating seat (901) is provided with a slider (802). The slider (802) is slidably connected to the groove (801).

8. A drum heating furnace for producing fracturing proppant according to claim 1, characterized in that: A sealing door (302) is provided on the left side of the material pipe (301), and a handle is provided on the left side of the sealing door (302).

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