Stirring device for coking coal blending test

Abstract

The utility model relates to a stirring device for a coking coal blending test, and belongs to the technical field of coking coal blending tests. Comprising a fixing plate, a water tank and a stirring tank are arranged on the fixing plate, a gate valve is arranged on an output pipe at the lower end of the stirring tank, and a water conveying pipe is arranged between the water tank and the stirring tank; a blocking box is fixedly arranged on the top face in the stirring tank, a vertical stirring shaft is rotationally arranged at the position of the axis in the stirring tank, the upper end of the stirring shaft extends into the blocking box, a circle of stirring rods are fixedly arranged at the lower end of the stirring shaft, and a stirring motor is fixedly arranged on the upper end face of the stirring tank. An output shaft of the stirring motor vertically and downwards penetrates through the top plate of the stirring tank and extends into the blocking box, a transmission assembly is arranged between the output shaft of the stirring motor and the stirring shaft, and the stirring motor drives the stirring shaft to rotate through the transmission assembly and meanwhile ascends and descends; the problems that an existing stirring device for the coking coal blending test is uneven in stirring effect and low in automation degree are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coking coal blending test, and particularly relates to a stirring device for coking coal blending test. Background Technique

[0002] In the coking process, coal blending is a crucial link. It involves mixing different types of coking coal in appropriate proportions to meet the requirements of coking production and the quality standards of coke. Since there are many types of coking coal and the coal quality indexes and properties of each type of coal vary greatly, a reasonable coal blending technology can give full play to the characteristics of various coals, achieve complementary advantages, and then produce high-quality coke with an economical and reasonable plan. This can not only ensure the quality of coke, but also effectively save high-quality coking coal, expand the application range of coking coal resources, and has significant economic and environmental benefits.

[0003] Although the coal blending technology plays an important role in coking production, the existing coal blending test devices still have many limitations in the stirring link, which are mainly manifested in the following aspects:

[0004] (1) Uneven stirring effect: Due to the limitations of the stirring method or equipment, the coal samples are prone to uneven mixing during the stirring process, affecting the accuracy and reliability of the coal blending test;

[0005] (2) Low degree of automation: Most of the existing stirring devices lack an automatic control system, resulting in cumbersome operation, high labor intensity, and easy introduction of errors due to human factors.

[0006] Therefore, it is urgent to develop a new type of stirring device for coking coal blending test to solve the above problems. Content of the Utility Model

[0007] The utility model overcomes the deficiencies of the prior art and provides a stirring device for coking coal blending test, which solves the problems of uneven stirring effect and low degree of automation of the existing stirring device for coking coal blending test.

[0008] In order to achieve the above purpose, the utility model is realized by the following technical solutions.

[0009] A coking coal blending test stirring device includes a fixed plate. On one side of the upper end surface of the fixed plate, a water tank is fixedly arranged. On the top plate of the water tank, a vertical water outlet pipe is arranged. At the upper end surface of the water tank, a water pump is fixedly arranged. The inlet of the water pump is connected to the upper end of the water outlet pipe. A stirring tank is also arranged on the fixed plate. An output pipe is arranged at the lower end of the stirring tank. A plug valve is arranged on the output pipe. A water inlet is arranged at the top plate of the stirring tank. A water delivery pipe is arranged at the water inlet. The water delivery pipe is connected to the outlet of the water pump. A barrier box is fixedly arranged at the inner top surface of the stirring tank. A vertical stirring shaft is rotatably arranged at the inner axis of the stirring tank. The upper end of the stirring shaft extends into the barrier box. A circle of stirring rods is fixedly arranged at the lower end of the stirring shaft. A stirring motor is fixedly arranged at the upper end surface of the stirring tank. The output shaft of the stirring motor vertically penetrates the top plate of the stirring tank and extends into the barrier box. A transmission component is arranged between the output shaft of the stirring motor and the stirring shaft. The stirring motor drives the stirring shaft to rotate and lift simultaneously through the transmission component.

[0010] Further, the fixed plate is a horizontally arranged square plate-like structure. A vertical support leg is fixedly arranged at each of the four corners of the lower end surface of the fixed plate.

[0011] Further, a water inlet pipe is arranged on the top plate of the water tank. A water inlet solenoid valve is arranged on the water inlet pipe.

[0012] Further, the lower end of the water outlet pipe extends to the inner bottom surface of the water tank. A liquid level sensor is arranged inside the water tank.

[0013] Further, the stirring tank is a hollow cylindrical tank structure. The inner bottom surface of the stirring tank is a tapered structure that is thicker at the top and thinner at the bottom.

[0014] Further, a coal inlet hopper is arranged at the top of the stirring tank. The coal inlet hopper is a trumpet-shaped structure that is thicker at the top and thinner at the bottom. The lower end of the coal inlet hopper is connected to the inside of the stirring tank.

[0015] Further, the transmission component includes a driving rod. A vertical driving rod is fixedly arranged on the output shaft of the stirring motor. The driving rod is rotatably connected to the inner wall of the barrier box through a hinge seat. A rotating cylinder is arranged on one side of the driving rod. The rotating cylinder is a circular cylindrical structure with openings at both the upper and lower ends. The upper and lower ends of the rotating cylinder are rotatably connected to the inner wall of the barrier box through hinge seats. A driving gear is fixedly sleeved on the outside of the driving rod. A driven gear is fixedly sleeved on the outside of the rotating cylinder. The driving gear meshes with the driven gear.

[0016] Further, the upper end of the stirring shaft is inserted into the rotating cylinder. A sliding block is fixedly arranged on the inner wall of the rotating cylinder. A vertical sliding groove is arranged on the outer wall of the rotating shaft. The sliding block is slidably connected to the inside of the sliding groove.

[0017] Further, a vertical worm is fixedly arranged at the lower end of the driving rod. A worm wheel is arranged on the side of the worm away from the stirring shaft. The axis of the worm wheel remains horizontal and the worm wheel meshes with the worm. The worm wheel is rotatably connected to the inner wall of the barrier box through a hinge seat. A first swing rod is fixedly arranged on the rotating shaft of the worm wheel. One end of the first swing rod is fixedly connected to the rotating shaft of the worm wheel and the first swing rod rotates synchronously with the worm wheel. A transmission gear is arranged below the worm. The axis of the transmission gear is parallel to the axis of the worm wheel. The transmission gear is rotatably connected to the bottom plate of the barrier box through a hinge seat.

[0018] Furthermore, a second swing rod is fixedly arranged on the rotating shaft of the transmission gear. One end of the second swing rod is fixedly connected to the rotating shaft of the transmission gear and the second swing rod rotates synchronously with the transmission gear. A connecting rod is arranged between the second swing rod and the first swing rod. Two ends of the connecting rod are respectively hinged to the end of the first swing rod away from the worm wheel and the end of the second swing rod away from the transmission gear. The length of the second swing rod is greater than that of the first swing rod. A transmission cylinder is fixedly sleeved outside the stirring shaft. A row of equally spaced transmission rings is fixedly arranged on the outer wall of the transmission cylinder. The outer edges of the row of transmission rings mesh with the transmission gear.

[0019] The beneficial effects of the present utility model compared with the prior art are as follows:

[0020] Through a coking coal blending test stirring device provided by the present utility model, while the stirring shaft drives the stirring rod to rotate, it can also perform lifting, so that the upper and lower parts of the mixed material can be stirred, thereby improving the stirring effect on the coal sample. By adding a liquid level sensor and a water inlet solenoid valve at the water tank, the amount of water entering the water tank can be automatically controlled, thereby ensuring the best ratio during coal sample batching. Description of the Drawings

[0021] The following further describes the present utility model in detail with reference to the drawings:

[0022] Figure 1 is the overall structural schematic diagram of the present utility model;

[0023] Figure 2 is the structural schematic diagram inside the stirring tank;

[0024] Figure 3 is the structural schematic diagram inside the barrier box;

[0025] Figure 4 is Figure 3 the partial enlarged schematic diagram at A in

[0026] Among them, 1 is a fixed plate, 2 is a support leg, 3 is a water tank, 4 is a water inlet pipe, 5 is a water inlet solenoid valve, 6 is a water outlet pipe, 7 is a water pump, 8 is a mixing tank, 9 is an output pipe, 10 is a flap valve, 11 is a water delivery pipe, 12 is a coal inlet hopper, 13 is a barrier box, 14 is a mixing shaft, 15 is a mixing rod, 16 is a mixing motor, 17 is a driving rod, 18 is a driving gear, 19 is a driven gear, 20 is a sliding groove, 21 is a worm, 22 is a worm gear, 23 is a first swing rod, 24 is a transmission gear, 25 is a second swing rod, 26 is a connecting rod, 27 is a transmission cylinder. Detailed implementation mode

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. The technical solutions of the present utility model will be described in detail below in combination with embodiments and drawings, but the protection scope is not limited by this.

[0028] As Figure 1 As shown in Fig. -4, the present utility model provides a coking coal blending test mixing device, including a fixed plate 1. The fixed plate 1 is a horizontally arranged square plate-shaped structure. At the four corners of the lower end surface of the fixed plate 1, a vertical support leg 2 is respectively fixedly arranged, and the fixed plate 1 is supported by the four support legs 2.

[0029] On one side of the upper end surface of the fixed plate 1, a water tank 3 is fixedly arranged. On the top plate of the water tank 3, a water inlet pipe 4 is arranged. On the water inlet pipe 4, a water inlet solenoid valve 5 is arranged, and the water inlet solenoid valve 5 is used to control whether the water inlet pipe 4 injects water into the water tank 3. On the top plate of the water tank 3, a vertical water outlet pipe 6 is arranged, and the lower end of the water outlet pipe 6 extends to the bottom surface inside the water tank 3. A liquid level sensor is arranged inside the water tank 3, and the liquid level sensor is used to detect the liquid level inside the water tank 3. A water pump 7 is fixedly arranged on the upper end surface of the water tank 3, and the inlet of the water pump 7 is connected to the upper end of the water outlet pipe 6.

[0030] A fixing hole penetrating up and down is provided on the fixing plate 1, and a stirring tank 8 is fixedly arranged at the fixing hole. The stirring tank 8 is a hollow cylindrical tank structure, and the inner bottom surface of the stirring tank 8 is a conical structure that is thicker at the top and thinner at the bottom. A vertical output pipe 9 is fixedly arranged at the center of the lower end of the stirring tank 8. The upper end of the output pipe 9 is connected to the inside of the stirring tank 8, and a sluice valve 10 is arranged on the output pipe 9 to control the opening and closing of the output pipe 9. A water inlet is arranged at the top plate of the stirring tank 8, and a water delivery pipe 11 is arranged at the water inlet. One end of the water delivery pipe 11 is connected to the inside of the stirring tank 8 through the water inlet, and the other end of the water delivery pipe 11 is connected to the outlet of the water pump 7. A coal inlet hopper 12 is arranged at the top of the stirring tank 8. The coal inlet hopper 12 is a horn-shaped structure that is thicker at the top and thinner at the bottom. The lower end of the coal inlet hopper 12 is connected to the inside of the stirring tank 8, and coal materials are input into the stirring tank 8 through the coal inlet hopper 12.

[0031] A stirring mechanism is further arranged at the top of the stirring tank 8. The stirring mechanism includes a stirring motor 16, a stirring shaft 14, stirring rods 15, a barrier box 13, and a transmission assembly.

[0032] A barrier box 13 is fixedly arranged at the inner top surface of the stirring tank 8. The barrier box 13 is a square box structure. A vertical stirring shaft 14 is rotatably arranged on the inner axis of the stirring tank 8. The upper end of the stirring shaft 14 extends into the barrier box 13, and a circle of stirring rods 15 is fixedly arranged at the lower end of the stirring shaft 14 to stir the materials at the lower end inside the stirring tank 8. A stirring motor 16 is fixedly arranged on the upper end surface of the stirring tank 8. The output shaft of the stirring motor 16 vertically penetrates the top plate of the stirring tank 8 and extends into the barrier box 13.

[0033] A transmission assembly is arranged between the output shaft of the stirring motor 16 and the stirring shaft 14. The stirring motor 16 drives the stirring shaft 14 to rotate and lift simultaneously through the transmission assembly.

[0034] The transmission assembly includes a driving rod 17, a rotating cylinder, a driving gear 18, a driven gear 19, a worm gear 22, a worm 21, a first swing rod 23, a second swing rod 25, a connecting rod 26, a transmission gear 24, and a transmission cylinder 27.

[0035] A vertical driving rod 17 is fixedly arranged on the output shaft of the stirring motor 16. The driving rod 17 is rotationally connected to the inner wall of the blocking box 13 through a hinge seat. A rotating cylinder is arranged on one side of the driving rod 17. The rotating cylinder is a circular cylindrical structure with openings at both the upper and lower ends. The upper and lower ends of the rotating cylinder are rotationally connected to the inner wall of the blocking box 13 through hinge seats. An active gear 18 is fixedly sleeved outside the driving rod 17, and a driven gear 19 is fixedly sleeved outside the rotating cylinder. The active gear 18 meshes with the driven gear 19. The upper end of the stirring shaft 14 is inserted into the rotating cylinder. A sliding block is fixedly arranged on the inner wall of the rotating cylinder, and a vertical sliding groove 20 is arranged on the outer wall of the rotating shaft. The sliding block is slidably connected to the inside of the sliding groove 20.

[0036] A vertical worm 21 is fixedly arranged at the lower end of the driving rod 17. A worm gear 22 is arranged on the side of the worm 21 away from the stirring shaft 14. The axis of the worm gear 22 is horizontal, and the worm gear 22 meshes with the worm 21. The worm gear 22 is rotationally connected to the inner wall of the blocking box 13 through a hinge seat. A first swing rod 23 is fixedly arranged on the rotating shaft of the worm gear 22. One end of the first swing rod 23 is fixedly connected to the rotating shaft of the worm gear 22, and the first swing rod 23 rotates synchronously with the worm gear 22. A transmission gear 24 is arranged below the worm 21. The axis of the transmission gear 24 is parallel to the axis of the worm gear 22. The transmission gear 24 is rotationally connected to the bottom plate of the blocking box 13 through a hinge seat. A second swing rod 25 is fixedly arranged on the rotating shaft of the transmission gear 24. One end of the second swing rod 25 is fixedly connected to the rotating shaft of the transmission gear 24, and the second swing rod 25 rotates synchronously with the transmission gear 24. A connecting rod 26 is arranged between the second swing rod 25 and the first swing rod 23. The two ends of the connecting rod are respectively hinged to the end of the first swing rod 23 away from the worm gear 22 and the end of the second swing rod 25 away from the transmission gear 24. The length of the second swing rod 25 is greater than the length of the first swing rod 23. A transmission cylinder 27 is fixedly sleeved outside the stirring shaft 14. A row of equally spaced transmission rings is fixedly arranged on the outer wall of the transmission cylinder 27. The outer edges of the row of transmission rings mesh with the transmission gear 24.

[0037] The working principle of the present utility model is as follows:

[0038] In the initial state, the flap valve 10 is closed, and then the water inlet solenoid valve 5 is opened. Water is injected into the water tank 3 through the water inlet pipe 4. When the liquid level in the water tank 3 reaches the set value of the liquid level sensor, the water inlet solenoid valve 5 is controlled to close, and the water injection into the water tank 3 is stopped. Then, a certain amount of coal material is input into the stirring tank 8 through the coal inlet hopper 12. By starting the water pump 7, the water in the water tank 3 is evenly input into the stirring tank 8, so that the coal material and water in the stirring tank 8 are mixed.

[0039] Then, turn on the stirring motor 16. The stirring motor 16 drives the driving rod 17 to rotate. The driving rod 17 drives the driving gear 18 and the worm 21 to rotate. Since the driving gear 18 meshes with the driven gear 19, the rotating drum is driven to rotate. The rotating drum drives the stirring shaft 14 to rotate through the sliding block on its inner wall. The stirring shaft 14 drives the stirring rods 15 at the lower end to rotate, thus realizing the stirring and mixing of the coal material and water. Since the worm 21 meshes with the worm gear 22, the worm 21 drives the worm gear 22 to rotate. The worm gear 22 drives the first swing rod 23 to rotate. Since the length of the first swing rod 23 is less than that of the second swing rod 25, when the first swing rod 23 rotates, it drives the second swing rod 25 to swing through the connecting rod 26. The second swing rod 25 drives the transmission gear 24 to rotate reciprocally. When the transmission gear 24 rotates reciprocally, it drives the transmission cylinder 27 to slide up and down reciprocally. The transmission cylinder 27 drives the stirring shaft 14 to lift and lower reciprocally. The stirring shaft 14 drives the stirring rods 15 to lift and lower reciprocally as well, thus making the stirring effect of the coal material and water better. Since the sliding block is slidably connected inside the sliding groove 20, it ensures the stability of the stirring shaft 14 during lifting and lowering.

[0040] After the coal material and water are stirred, open the flap valve 10, and output the stirred and mixed material through the output pipe 9.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A coking coal blending test stirring device, characterized in that: It includes a fixed plate (1). On one side of the upper end face of the fixed plate (1), a water tank (3) is fixedly arranged. On the top plate of the water tank (3), a vertical water outlet pipe (6) is arranged. At the upper end face of the water tank (3), a water pump (7) is fixedly arranged. The inlet of the water pump (7) is connected to the upper end of the water outlet pipe (6). A mixing tank (8) is also arranged on the fixed plate (1). At the lower end of the mixing tank (8), an output pipe (9) is arranged. On the output pipe (9), a plug valve (10) is arranged. At the top plate of the mixing tank (8), a water inlet is arranged, and a water delivery pipe (11) is arranged at the water inlet. The water delivery pipe (11) is connected to the outlet of the water pump (7). At the inner top surface of the mixing tank (8), a barrier box (13) is fixedly arranged. At the inner axis of the mixing tank (8), a vertical mixing shaft (14) is rotatably arranged. The upper end of the mixing shaft (14) extends into the barrier box (13). At the lower end of the mixing shaft (14), a circle of mixing rods (15) is fixedly arranged. At the upper end face of the mixing tank (8), a mixing motor (16) is fixedly arranged. The output shaft of the mixing motor (16) vertically penetrates the top plate of the mixing tank (8) and extends into the barrier box (13). A transmission assembly is arranged between the output shaft of the mixing motor (16) and the mixing shaft (14). While the mixing motor (16) drives the mixing shaft (14) to rotate through the transmission assembly, the mixing shaft (14) also moves up and down.

2. The coking coal blending test stirring device according to claim 1, characterized in that: The fixed plate (1) is a horizontally arranged square plate-like structure. At the four corners of the lower end face of the fixed plate (1), a vertical support leg (2) is fixedly arranged respectively.

3. The coking coal blending test stirring device according to claim 1, characterized in that: On the top plate of the water tank (3), a water inlet pipe (4) is arranged. On the water inlet pipe (4), a water inlet solenoid valve (5) is arranged.

4. A coking coal blending test stirring device according to claim 1, characterized in that: The lower end of the water outlet pipe (6) extends to the inner bottom surface of the water tank (3). A liquid level sensor is arranged inside the water tank (3).

5. The coking coal blending test stirring device according to claim 1, wherein: The mixing tank (8) is a hollow cylindrical tank structure. The inner bottom surface of the mixing tank (8) is a tapered structure that is thicker at the top and thinner at the bottom.

6. The coking coal blending test stirring device according to claim 1, wherein: At the top of the mixing tank (8), a coal inlet hopper (12) is arranged. The coal inlet hopper (12) is a horn-shaped structure that is thicker at the top and thinner at the bottom. The lower end of the coal inlet hopper (12) is connected to the inside of the mixing tank (8).

7. The coking coal blending test stirring device according to claim 1, characterized in that: The transmission assembly includes a driving rod (17). On the output shaft of the mixing motor (16), a vertical driving rod (17) is fixedly arranged. The driving rod (17) is rotatably connected to the inner wall of the barrier box (13) through a hinge seat. On one side of the driving rod (17), a rotating cylinder is arranged. The rotating cylinder is a circular cylindrical structure with openings at both the upper and lower ends. The upper and lower ends of the rotating cylinder are rotatably connected to the inner wall of the barrier box (13) through hinge seats. An active gear (18) is fixedly sleeved on the outside of the driving rod (17). A driven gear (19) is fixedly sleeved on the outside of the rotating cylinder. The active gear (18) meshes with the driven gear (19).

8. The coking coal blending test stirring device according to claim 7, characterized in that: The upper end of the mixing shaft (14) is inserted into the rotating cylinder. On the inner wall of the rotating cylinder, a sliding block is fixedly arranged. On the outer wall of the rotating shaft, a vertical sliding groove (20) is arranged. The sliding block is slidably connected to the inside of the sliding groove (20).

9. An experimental coking coal blending stirring device according to claim 8, characterized in that: A vertical worm (21) is fixedly arranged at the lower end of the driving rod (17). A worm wheel (22) is arranged on the side of the worm (21) away from the stirring shaft (14). The axis of the worm wheel (22) is kept horizontal, and the worm wheel (22) meshes with the worm (21). The worm wheel (22) is rotatably connected to the inner wall of the barrier box (13) through a hinge seat. A first swing rod (23) is fixedly arranged on the rotating shaft of the worm wheel (22). One end of the first swing rod (23) is fixedly connected to the rotating shaft of the worm wheel (22), and the first swing rod (23) rotates synchronously with the worm wheel (22). A transmission gear (24) is arranged below the worm (21). The axis of the transmission gear (24) is parallel to the axis of the worm wheel (22). The transmission gear (24) is rotatably connected to the bottom plate of the barrier box (13) through a hinge seat.

10. A coking coal blending test stirring device according to claim 9, characterized in that: A second swing rod (25) is fixedly arranged on the rotating shaft of the transmission gear (24). One end of the second swing rod (25) is fixedly connected to the rotating shaft of the transmission gear (24), and the second swing rod (25) rotates synchronously with the transmission gear (24). A connecting rod (26) is arranged between the second swing rod (25) and the first swing rod (23). The two ends of the connecting rod are respectively hinged to the end of the first swing rod (23) away from the worm wheel (22) and the end of the second swing rod (25) away from the transmission gear (24). The length of the second swing rod (25) is greater than the length of the first swing rod (23). A transmission cylinder (27) is fixedly sleeved outside the stirring shaft (14). A row of equally spaced transmission rings is fixedly arranged on the outer wall of the transmission cylinder (27). The outer edges of the row of transmission rings mesh with the transmission gear (24).

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