Double-shaft type pulverized coal mixing and kneading mechanism

Abstract

The utility model belongs to the technical field of pulverized coal processing equipment, and particularly relates to a double-shaft pulverized coal mixing and kneading mechanism. The double-shaft type pulverized coal mixing and kneading mechanism comprises a mixing and kneading pot, a stirring assembly for mixing pulverized coal, liquid asphalt and water is installed in the mixing and kneading pot, the stirring assembly comprises a kneading cavity, the bottom of the kneading cavity is open, the kneading cavity is formed in the inner top of the mixing and kneading pot, and the stirring assembly is arranged in the kneading cavity. A mixing and kneading pot is installed on the upper portion of the mixing and kneading pot, a discharging assembly used for controlling discharging of kneaded pulverized coal is installed at the inner bottom of the mixing and kneading pot, the stirring assembly further comprises a motor, the motor is installed at the front end of the outer wall of the mixing and kneading pot, and the output end of the motor is fixedly connected with a first rotating shaft. And meanwhile, through cooperation with the discharging assembly, a discharging opening can be automatically opened and closed, rapid discharging is achieved, and the using convenience of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal powder processing equipment technical field, concretely is a double shaft type coal powder mixing kneading mechanism. BACKGROUND

[0002] In industrial production, many process links need to use coal powder, such as boiler combustion, metallurgical injection, coal chemical industry and other fields. In order to ensure the stable operation and efficient output of these processes, the quality of coal powder is crucial. The mixing uniformity of coal powder and the forming property after kneading directly affect the combustion efficiency, injection effect and the progress of chemical reaction.

[0003] Chinese patent authorization announcement No. CN204096454U provides a coal powder conveying and feeding mixing device, which "includes coal powder conveying mechanism, slurry injector, oil injection pipe and feeding machine, the coal powder conveying mechanism includes rack, conveying belt arranged on the rack, guide chute arranged on the conveying belt feeding side respectively, hopper arranged on the conveying belt discharge side, the slurry injector is arranged above the conveying belt and is located at the rear side of the guide chute, the utility model expands the function of the conveying belt, carries out preliminary slurry mixing while conveying coal powder, middle section oil mixing, and later addition of quicklime, and the final fusion mixing function is completed, each step influences each other, the feeding and mixing device of combustion-supporting agent can uniformly add combustion-supporting agent to coal powder, improve the utilization efficiency of coal powder, at the same time, the addition of slurry can keep the proper humidity of coal powder in the conveying process, avoid the flying of coal powder, and protect the health of operating personnel".

[0004] But the above-mentioned device mixes by single shaft, which causes low mixing efficiency and poor kneading effect in the stirring and mixing process, so that the device has certain use limitation, and it is difficult to meet the strict requirements of modern industrial production on the quality of coal powder. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a double shaft type coal powder mixing kneading mechanism to solve the problems in the above background technology.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a double shaft type coal powder mixing kneading mechanism, which comprises a mixing and kneading pot, a stirring assembly for mixing coal powder, liquid pitch and water is arranged in the interior of the mixing and kneading pot, the stirring assembly comprises a kneading cavity, the bottom of the kneading cavity is open type, the kneading cavity is arranged in the inner top of the mixing and kneading pot, and a discharging assembly for controlling the discharging of coal powder after kneading is arranged on the inner bottom of the mixing and kneading pot.

[0007] Preferably, the stirring assembly further comprises a motor, the motor is installed at the front end of the outer wall of the mixing kettle, the output end of the motor is fixedly connected with a first rotating shaft, a second rotating shaft with the same diameter as the first rotating shaft is installed at the right side of the first rotating shaft, and the tail ends of the first rotating shaft and the second rotating shaft are rotationally connected to the inner wall of the mixing kettle; the front end of the outer wall of the first rotating shaft and the second rotating shaft is fixedly connected with a driving gear and a driven gear respectively, the driving gear and the driven gear are in meshing transmission, and the driving gear and the driven gear are arranged in the interior of the mixing kettle; a plurality of stirring blocks are arranged in a circular array on the outer surface of the first rotating shaft and the second rotating shaft respectively with the respective centers as the shafts, and the plurality of stirring blocks are arranged in a rectangular array on the outer surface of the first rotating shaft and the second rotating shaft.

[0008] Preferably, the discharging assembly comprises a cavity, the cavity is arranged in the interior of the mixing kettle and communicates with the kneading cavity, the middle part of the left end and the right end of the inner wall of the cavity is provided with an electric push rod, the output end of the electric push rod is fixedly connected with a moving block, the top of the moving block is provided with a protective base, and the two protective bases are matched with the opening of the kneading cavity after being attached.

[0009] Preferably, the top of the moving block is provided with a mounting groove, the size of the mounting groove is matched with the protective base, a plurality of springs are fixedly connected to the top wall of the mounting groove at equal intervals, and the tail ends of the springs are fixedly connected to the bottom wall of the protective base.

[0010] Preferably, the bottom wall of the mixing kettle is provided with a discharging port.

[0011] Preferably, the top wall of the mixing kettle is fixedly connected with a protective cover.

[0012] Preferably, the right end of the outer wall of the mixing kettle is provided with a control panel, and the control panel is electrically connected with the motor and the electric push rod respectively.

[0013] Compared with the prior art, the double-shaft type coal powder mixing and kneading mechanism has the advantages that: the double-shaft type stirring assembly is used for fully mixing and stirring the coal powder, liquid asphalt and water, so that the liquid asphalt and water are fully infiltrated, penetrated and dispersed uniformly with the coal powder, the mixing effect and the stirring efficiency are improved, and the discharging assembly can automatically open and close the discharging port, so that the rapid discharging is realized, and the convenience of using the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the stirring assembly provided by the utility model;

[0016] Figure 3A partial sectional view structure schematic diagram of a double-shaft type coal powder mixing kneading mechanism is provided in the utility model.

[0017] Figure 4 A partial split structure schematic diagram of a double-shaft type coal powder mixing kneading mechanism is provided in the utility model.

[0018] Figure 5 A bottom three-dimensional structure schematic diagram of a double-shaft type coal powder mixing kneading mechanism is provided in the utility model.

[0019] In the drawing: 1, mixing and kneading pot; 2, kneading cavity; 21, motor; 22, driving gear; 23, driven gear; 24, first rotating shaft; 25, second rotating shaft; 26, stirring block; 3, cavity; 31, electric push rod; 32, moving block; 33, protection base; 4, mounting groove; 5, spring; 6, protection cover; 7, discharging port; 8, control panel. Specific implementation

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of technical solutions: a double-shaft type coal powder mixing kneading mechanism, including mixing and kneading pot 1, the inside of mixing and kneading pot 1 is equipped with the stirring assembly for mixing coal powder and liquid pitch and water, stirring assembly includes kneading cavity 2, the bottom of kneading cavity 2 is open type, kneading cavity 2 is opened in the inner top of mixing and kneading pot 1, the inner bottom of mixing and kneading pot 1 is equipped with the discharge assembly for controlling the discharge of coal powder after kneading;Stirring assembly further includes motor 21, motor 21 is installed at the outer wall front end of mixing and kneading pot 1, the output end of motor 21 is fixedly connected with first rotating shaft 24, the right side of first rotating shaft 24 is equipped with the second rotating shaft 25 same in diameter with first rotating shaft 24, the tail end of first rotating shaft 24 and second rotating shaft 25 is all rotationally connected in the inner wall of mixing and kneading pot 1, the outer wall front end of first rotating shaft 24 and second rotating shaft 25 is fixedly connected with driving gear 22 and driven gear 23 respectively, driving gear 22 and driven gear 23 engage transmission, driving gear 22 and driven gear 23 are all equipped in the inside of mixing and kneading pot 1, the outer surface of first rotating shaft 24 and second rotating shaft 25 is respectively arranged with multiple stirring blocks 26 with the respective center as the axis of gyration, multiple stirring blocks 26 are arranged in rectangular array on the outer surface of first rotating shaft 24 and second rotating shaft 25.

[0022] Through the above technical scheme, the kneading cavity 2 is designed as a spherical groove, which facilitates the sufficient mixing and stirring of the coal powder and other materials. The motor 21 drives the driving gear 22 and the driven gear 23 to mesh and transmit, thereby driving the first rotating shaft 24 and the second rotating shaft 25 to stir the raw materials. The double-shaft structure design can improve the mixing effect and stirring efficiency of the device, ensuring that the liquid asphalt and water can be fully mixed with the coal powder, so that the coal powder is condensed into paste material, which has the effect of easy molding and improves the product strength.

[0023] Please refer to Figure 3 and Figure 4 , the discharge assembly includes a cavity 3, which is provided in the interior of the kneading pot 1 and communicates with the kneading cavity 2. The inner wall of the cavity 3 is provided with an electric push rod 31 at the middle part of the left and right ends. The output end of the electric push rod 31 is fixedly connected with a moving block 32. The top of the moving block 32 is provided with a protective base 33. The two protective bases 33 are matched with the opening of the kneading cavity 2 after being attached. The top of the moving block 32 is provided with a mounting groove 4, which is matched in size with the protective base 33. The top wall of the mounting groove 4 is fixedly connected with a plurality of springs 5. The ends of the springs 5 are fixedly connected to the bottom wall of the protective base 33.

[0024] Through the above technical scheme, the moving block 32 and the protective base 33 are moved in the cavity 3 by the electric push rod 31. The protective base 33 is installed on the top of the moving block 32 by the spring 5. The protective base 33 can move up and down on the top of the moving block 32 by the spring 5. According to the actual use requirement, the kneading cavity 2 can be combined or separated with the kneading cavity 2. When the protective base 33 is combined with the kneading cavity 2, the kneading cavity 2 forms a spherical groove as a whole, which is convenient for stirring operation. When the protective base 33 is separated from the kneading cavity 2, the kneading cavity 2 communicates with the discharge port 7, and the mixed coal powder can be collected.

[0025] Please refer to Figure 1 and Figure 5 , the bottom wall of the kneading pot 1 is provided with a discharge port 7. The top wall of the kneading pot 1 is fixedly connected with a protective cover 6. The outer wall of the kneading pot 1 is provided with a control panel 8 at the right end. The control panel 8 is electrically connected with the motor 21 and the electric push rod 31.

[0026] Through the above technical scheme, the width of the discharge port 7 is smaller than that of the cavity 3. The design of the discharge port 7 can collect the paste coal powder material. The protective cover 6 is fixedly connected to the top of the kneading pot 1, which can fence the kneading cavity 2, thereby avoiding the material from spilling during stirring operation. The stirring assembly and the discharge assembly can centrally control the electrical equipment through the control panel 8, thereby ensuring the stability of the device operation and the convenience of use.

[0027] Working principle: when carrying out kneading operation, firstly, the electric push rod 31 is started to control the two sides of the moving block 32 and the protective base 33 to move towards each other, the protective base 33 is driven by the pressure of the inner wall of the mixing and kneading pot 1 to press down the spring 5 and position in the mounting groove 4, when the two protective bases 33 are combined, they are just clamped into the bottom wall of the kneading cavity 2, so as to form an arc-shaped whole with the kneading cavity 2, which is convenient for subsequent stirring operation, pour the coal powder needing kneading into the mixing and kneading pot 1, then pour a certain amount of liquid asphalt and water according to the proportion, start the motor 21 through the control panel 8, the motor 21 drives the first rotating shaft 24 to rotate, the first rotating shaft 24 drives the driving gear 22 to rotate synchronously in the process of rotating, since the driving gear 22 and the driven gear 23 are meshed and connected, the driven gear 23 is driven to rotate synchronously through the rotation of the driving gear 22, and then the second rotating shaft 25 is driven to rotate, through the double-shaft rotating design of the first rotating shaft 24 and the second rotating shaft 25, the coal powder and other materials in the mixing and kneading pot 1 and the kneading cavity 2 can be fully mixed and stirred, the coal powder is formed into paste material through interface chemical condensation under the joint action of the binder and water, and has certain plasticity, when the stirring operation is finished, the protective base 33 is manually pressed down to be clamped into the mounting groove 4, then the moving block 32 is controlled to move outward to the cavity 3 through the electric push rod 31, at this time, the stirred coal powder falls through the opening of the kneading cavity 2 to the discharge port 7 for discharging, so that the stirring and discharging purposes of the coal powder are realized.

[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dual-shaft coal powder mixing and kneading mechanism, comprising a mixing pot (1), characterized in that: The mixing pot (1) is equipped with a stirring assembly for mixing coal powder, liquid asphalt and water. The stirring assembly includes a kneading chamber (2). The bottom of the kneading chamber (2) is open. The kneading chamber (2) is located at the top inside the mixing pot (1). The bottom inside the mixing pot (1) is equipped with a discharge assembly for controlling the discharge of coal powder after kneading.

2. The biaxial coal powder mixing and kneading mechanism according to claim 1, characterized in that: The stirring assembly also includes a motor (21), which is mounted on the front end of the outer wall of the mixing pot (1). The output end of the motor (21) is fixedly connected to a first rotating shaft (24). A second rotating shaft (25) with the same diameter as the first rotating shaft (24) is mounted on the right side of the first rotating shaft (24). The ends of the first rotating shaft (24) and the second rotating shaft (25) are rotatably connected to the inner wall of the mixing pot (1). The front ends of the outer walls of the first rotating shaft (24) and the second rotating shaft (25) are respectively fixed. A drive gear (22) and a driven gear (23) are connected, and the drive gear (22) and the driven gear (23) mesh and drive each other. The drive gear (22) and the driven gear (23) are both located inside the mixing pot (1). Multiple stirring blocks (26) are arranged in a ring array with their respective centers on the outer surfaces of the first rotating shaft (24) and the second rotating shaft (25). The multiple stirring blocks (26) are arranged in a rectangular array on the outer surfaces of the first rotating shaft (24) and the second rotating shaft (25).

3. The biaxial coal powder mixing and kneading mechanism according to claim 1, characterized in that: The discharge assembly includes a cavity (3), which is located inside the mixing pot (1) and communicates with the kneading chamber (2). Electric push rods (31) are installed at the middle of the left and right ends of the inner wall of the cavity (3). A moving block (32) is fixedly connected to the output end of the electric push rod (31). A protective base (33) is installed on the top of the moving block (32). The two protective bases (33) fit together and match the opening of the kneading chamber (2).

4. The biaxial coal powder mixing and kneading mechanism according to claim 3, characterized in that: The top of the movable block (32) is provided with an installation groove (4), the size of which is adapted to the protective base (33). Multiple springs (5) are fixedly connected at equal intervals to the top wall of the installation groove (4), and the ends of the springs (5) are fixedly connected to the bottom wall of the protective base (33).

5. The biaxial coal powder mixing and kneading mechanism according to claim 1, characterized in that: The bottom wall of the mixing pot (1) is provided with a feeding port (7).

6. The biaxial coal powder mixing and kneading mechanism according to claim 1, characterized in that: A protective cover (6) is fixedly connected to the top wall of the mixing pot (1).

7. A biaxial coal powder mixing and kneading mechanism according to claim 3, characterized in that: A control panel (8) is installed on the right side of the outer wall of the mixing pot (1), and the control panel (8) is electrically connected to the motor (21) and the electric push rod (31).

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