Automatic dosing device for coal selection

Abstract

The application relates to the field of coal preparation equipment, in particular to an automatic dosing device for coal preparation, which comprises a dosing assembly, the dosing assembly comprises a flow guide pipe, a plurality of branch pipes are communicated with one side of the flow guide pipe, a dosing cavity is communicated with the top of the branch pipes, a dosing assembly is arranged at the top of the dosing cavity, a dosing assembly is arranged at the top of the dosing assembly, the dosing assembly comprises a top cover, the top cover is fixedly installed at the top of the dosing cavity, a dosing interface is arranged at one end of the top of the top cover, a water source interface is arranged at the other end of the top of the top cover, the dosing assembly comprises a storage cavity, a medicine conveying pipe is communicated with the bottom end of the storage cavity, a dosing pipe is communicated with the bottom of one end of the medicine conveying pipe, the bottom end of the dosing pipe is communicated with the dosing interface, a stirring paddle is rotatably connected to the middle of the top end of the top cover, a first electromagnetic valve is arranged in the middle of the branch pipe, automatic dosing is achieved, and the effect of automatic dosing according to the flotation stage is achieved.

Description

Technical Field

[0001] This application relates to the field of coal preparation equipment, and in particular to an automatic dosing device for coal preparation. Background Technology

[0002] Coal preparation equipment refers to a series of mechanical devices used in the coal washing process. Their function is to remove impurities from raw coal, such as rocks, gangue, and mud, through physical or chemical methods, thereby improving coal quality and utilization. There are many types of coal preparation equipment, including but not limited to vibrating screens, jigs, heavy media separators, flotation machines, centrifugal dewatering machines, filters, and filter presses. Each type of equipment is designed for different coal preparation stages and purposes. Reagent addition mainly refers to the flotation reagents used in the flotation process, including collectors, frothers, and modifiers. A reasonable reagent addition sequence can ensure the maximization of interactions between reagents and improve flotation efficiency.

[0003] Existing dosing methods usually require manual dosing, which involves manually preparing reagents of a specific concentration and then adding them to the coal preparation equipment according to a certain dosing sequence. This method is cumbersome and inconvenient to use. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, this application provides an automatic dosing device for coal preparation.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0006] An automatic dosing device for coal preparation includes a dosing assembly. The dosing assembly includes a guide pipe, one side of which is connected to several branch pipes. The top of each branch pipe is connected to a dosing chamber. A dosing component is located on the top of the dosing chamber. A dosing agent is located on the top of the dosing assembly. The dosing assembly includes a top cover, which is fixedly installed on the top of the dosing chamber. One end of the top of the top cover has a dosing interface, and the other end has a water source interface. The dosing agent includes a storage chamber, the bottom of which is connected to a delivery pipe. One end of the delivery pipe is connected to a dosing pipe, the bottom of which is connected to the dosing interface. A stirring paddle is rotatably connected to the top center of the top cover. A first solenoid valve is located in the middle of each branch pipe.

[0007] By adopting the above scheme, the guide pipe facilitates connection of the device to the flotation unit, allowing for convenient addition of the prepared reagent solution to the flotation unit for flotation. The reagent preparation chamber provides ample space for thorough mixing of water and reagents. The reagent preparation assembly facilitates the mixing of measured amounts of water and reagents within the preparation chamber. The top cover ensures proper sealing of the top of the preparation chamber. The dosing interface allows for the addition of measured amounts of reagents into the preparation chamber via the dosing assembly. Finally, the water source interface facilitates connection to an external water source. A fixed amount of water is added to the reagent preparation chamber for reagent preparation. The reagent storage chamber facilitates the storage of powdered flotation reagents, making flotation reagents convenient. The reagent delivery pipe facilitates the transport of flotation powder within the pipe, from the dosing pipe to the dosing interface. The agitator facilitates the rotation of the agitator to stir the powder and water, allowing the reagent to fully diffuse in the water to form a flotation reagent solution. The first solenoid valve allows the corresponding reagent prepared in the reagent preparation chamber to enter the guide pipe, facilitating the addition of different reagent solutions at different stages of flotation.

[0008] Furthermore, a feeding screw is rotatably connected inside the drug delivery tube, and a drug delivery motor is fixedly installed on the outer side of one end of the drug delivery tube. The output end of the drug delivery motor is fixedly connected to the feeding screw.

[0009] By adopting the above scheme, the setting of the drug delivery motor facilitates the operation of the drug delivery motor to control the rotation of the delivery screw, thereby conveying the drug powder from inside the delivery tube. The number of rotations of the delivery screw can perform preliminary quantitative delivery of the drug powder.

[0010] Furthermore, a second solenoid valve is provided in the middle of the water source interface, and a flow meter is provided at the bottom of the second solenoid valve.

[0011] By adopting the above scheme, and by setting up a flow meter and a second solenoid valve, it is convenient to quantitatively control the water added into the dosing chamber for preparation, and to prepare a flotation reagent solution with a precise ratio.

[0012] Furthermore, a stirring motor is fixedly installed at the center of the top of the top cover, and a worm gear is fixedly installed at the output end of the stirring motor.

[0013] By adopting the above scheme, the setting of the stirring motor facilitates the operation and control of the worm gear rotation.

[0014] Furthermore, the worm gear is engaged with a worm wheel, which is fixedly connected to the top of the stirring paddle.

[0015] By adopting the above scheme, the worm gear facilitates the rotation of the worm to drive the stirring paddle, thereby achieving the effect of fully mixing water and pharmaceutical powder.

[0016] Furthermore, a weighing seat is provided at the bottom of the dosing interface, and a weighing platform is provided at the top of the weighing seat.

[0017] By adopting the above scheme and setting up a weighing platform, it is convenient to weigh the drugs put into the drug preparation chamber. Due to the different stacking and sealing of the drug powder, the quantitative feeding accuracy of the conveying screw is relatively low. The weighing platform further weighs and quantifies the drug powder, so as to achieve precise control of the drug feed and thus prepare a flotation drug solution with accurate proportions.

[0018] Furthermore, guide grooves are provided at both ends of the bottom of the weighing base, and guide rails are fixedly installed on both sides of the bottom of the dosing interface, with the guide rails slidably connected to the guide grooves.

[0019] By adopting the above scheme and setting the guide rail, the movement of the symmetrical measuring seat can be limited and guided.

[0020] Furthermore, push blocks are fixedly installed on both sides of one end of the weighing base, and a telescopic rod is fixedly installed on the outer side of the guide rail, with the output end of the telescopic rod being fixedly connected to the push blocks.

[0021] By adopting the above scheme, the telescopic rod facilitates the control of the weighing seat to slide along the guide rail.

[0022] Furthermore, a scraper ring is fixedly installed at the bottom of the dosing interface, and the scraper ring is located on the top of the weighing platform.

[0023] By adopting the above scheme, the scraper ring is designed to prevent drug powder from sliding off the top of the weighing platform when the weighing platform weighs the drug inlet. When the amount of drug powder is insufficient, the drug inlet component is controlled to add more drug. When the amount of drug powder reaches the standard, the telescopic rod works to drive the weighing seat to slide out of the bottom of the drug inlet, so that the scraper ring scrapes the drug powder on the top of the weighing platform into the drug preparation chamber for preparation.

[0024] In summary, this application has the following technical effects:

[0025] The guide pipe facilitates connection of the device to the flotation unit, allowing for easy addition of the prepared reagent solution for flotation. The reagent preparation chamber provides ample space for thorough mixing of water and reagents. The reagent preparation assembly allows for precise mixing of measured amounts of water and reagent within the chamber. The top cover ensures a secure seal. The dosing interface allows for the addition of measured amounts of reagent into the chamber. Finally, the water source interface facilitates connection to an external water source for adding water to the reagent preparation chamber. The system internally uses a fixed amount of water for reagent preparation. The reagent storage chamber facilitates the storage of powdered flotation reagents, making flotation reagents readily available. The reagent delivery pipe facilitates the transport of flotation powder within the pipe, from the dosing pipe to the dosing interface. The agitator rotates to stir the powder and water, ensuring the reagents are fully dispersed in the water to form a flotation reagent solution. The first solenoid valve controls the flow of reagents from the corresponding reagent preparation chamber into the guide pipe, allowing for the addition of different reagent solutions at different stages of flotation. Attached Figure Description

[0026] Figure 1 This is an external structural diagram of an automatic dosing device for coal preparation according to this application;

[0027] Figure 2 This is a three-dimensional structural schematic diagram of the dosing component of this application;

[0028] Figure 3 This is a three-dimensional structural diagram of the drug dispensing component of this application;

[0029] Figure 4 This is an exploded view of the drug preparation components of this application;

[0030] Figure 5 This is a cross-sectional view of the drug delivery component of this application.

[0031] In the diagram, 1. Dosing assembly; 11. Guide pipe; 12. Branch pipe; 13. Dosing chamber; 14. First solenoid valve; 2. Dosing assembly; 21. Top cover; 22. Dosing interface; 23. Water source interface; 24. Second solenoid valve; 25. Flow meter; 26. Agitator; 27. Worm gear; 28. Agitator motor; 29. ​​Worm; 210. Scraper ring; 211. Weighing seat; 212. Weighing platform; 213. Guide chute; 214. Push block; 215. Guide slide rail; 216. Telescopic rod; 3. Dosing assembly; 31. Drug storage chamber; 32. Drug delivery pipe; 33. Dosing pipe; 34. Material delivery screw; 35. Drug delivery motor. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Example:

[0034] This utility model provides an automatic dosing device for coal preparation, referring to... Figures 1-5 The dosing device includes a dosing assembly 1, which includes a guide pipe 11. The guide pipe 11 facilitates connection to a flotation device, allowing the prepared reagent solution to be added for flotation. Several branch pipes 12 are connected to one side of the guide pipe 11, and a mixing chamber 13 is connected to the top of each branch pipe 12. The mixing chamber 13 provides space for thorough mixing of water and reagents. A mixing component 2 is located at the top of the mixing chamber 13, facilitating the preparation of a measured amount of reagent. Water and a measured amount of medicine are mixed inside the dispensing chamber 13. The dispensing assembly 2 has a dosing component 3 on its top. The dispensing assembly 2 includes a top cover 21, which facilitates sealing the top of the dispensing chamber 13. The top cover 21 is fixedly installed on the top of the dispensing chamber 13. A dosing interface 22 is provided at one end of the top of the top cover 21, allowing the dosing component 3 to dispense a measured amount of medicine into the dispensing chamber 13 through the dosing interface 22. A water source interface 23 is provided at the other end of the top of the top cover 21. The water source interface 23 facilitates connection to an external water source, allowing for the convenient addition of a measured amount of water to the dosing chamber 13 for dosing. The dosing assembly 3 includes a storage chamber 31, which facilitates the storage of powdered flotation reagents. A delivery pipe 32 connects to the bottom of the storage chamber 31, allowing for the transport of flotation powder within the pipe. The powder is then added from the dosing pipe 33 to the dosing interface 22. One end of the delivery pipe 32 is connected to the dosing pipe 33. The bottom end of the dosing pipe 33 is connected to the dosing interface 22. The top of the top cover 21 is rotatably connected to the stirring paddle 26. The stirring paddle 26 is designed to rotate and stir the powder and water, so that the drug can be fully diffused in the water to form a flotation reagent solution. The branch pipe 12 is equipped with a first solenoid valve 14. The first solenoid valve 14 is designed to control the reagent in the corresponding dosing chamber 13 to enter the guide pipe 11, so that different reagent solutions can be added at different stages of flotation.

[0035] Reference Figure 5 The drug delivery tube 32 is rotatably connected to a feeding screw 34. A drug delivery motor 35 is fixedly installed on the outside of one end of the drug delivery tube 32. The output end of the drug delivery motor 35 is fixedly connected to the feeding screw 34. The setting of the drug delivery motor 35 facilitates the operation of the drug delivery motor 35 to control the rotation of the feeding screw 34, thereby conveying the drug powder from inside the drug delivery tube 32. The number of rotations of the feeding screw 34 can perform preliminary quantitative delivery of the drug powder.

[0036] Reference Figure 3A second solenoid valve 24 is provided in the middle of the water source interface 23, and a flow meter 25 is provided at the bottom of the second solenoid valve 24. The flow meter 25 and the second solenoid valve 24 facilitate the quantitative control of the water added into the dosing chamber 13 for preparation, so as to facilitate the preparation of a flotation reagent solution with a precise ratio.

[0037] A stirring motor 28 is fixedly installed at the top center of the top cover 21, and a worm gear 29 is fixedly installed at the output end of the stirring motor 28. The setting of the stirring motor 28 facilitates the operation of the stirring motor 28 to control the rotation of the worm gear 29.

[0038] The worm gear 29 is meshed with a worm wheel 27, which is fixedly connected to the top of the stirring paddle 26. The worm wheel 27 facilitates the rotation of the worm gear 29 to drive the stirring paddle 26 to rotate, thereby achieving the effect of fully stirring the water and the medicine powder.

[0039] Combination Figure 3 and Figure 4 The bottom of the dosing interface 22 is equipped with a weighing seat 211, and the top of the weighing seat 211 is equipped with a weighing platform 212. The weighing platform 212 facilitates the weighing of the drug put into the dosing chamber 13. Due to the different accumulation and sealing of the drug powder, the quantitative dosing accuracy of the rotating conveying screw 34 is relatively low. The weighing platform 212 further weighs and quantifies the drug powder to achieve precise control of the drug feed, thereby preparing a flotation drug solution with accurate proportions.

[0040] Reference Figure 4 The weighing base 211 has guide grooves 213 at both ends of its bottom. The dosing interface 22 has guide rails 215 fixedly installed on both sides of its bottom. The guide rails 215 are slidably connected to the guide grooves 213. The guide rails 215 facilitate the limiting and guiding of the movement of the weighing base 211.

[0041] Push blocks 214 are fixedly installed on both sides of one end of the weighing base 211, and telescopic rods 216 are fixedly installed on the outside of the guide rail 215. The output end of the telescopic rod 216 is fixedly connected to the push blocks 214. The telescopic rod 216 facilitates the working control of the telescopic rod 216 to make the weighing base 211 slide along the guide rail 215.

[0042] A scraper ring 210 is fixedly installed at the bottom of the dosing interface 22. The scraper ring 210 is set on the top of the weighing platform 212. The scraper ring 210 is set to prevent the drug powder from sliding off the top of the weighing platform 212 when the weighing platform 212 weighs the dosing interface 22. When the amount of drug powder is insufficient, the dosing component 3 is controlled to add drug. When the amount of drug powder reaches the standard, the telescopic rod 216 works to drive the weighing seat 211 to slide out of the bottom of the dosing interface 22, so that the scraper ring 210 scrapes the drug powder on the top of the weighing platform 212 into the medicine preparation chamber 13 for preparation.

[0043] The dosing assembly 2 facilitates the mixing of a fixed amount of water and a fixed amount of flotation reagent within the dosing chamber 13. The top cover 21 facilitates sealing the top of the dosing chamber 13. The dosing interface 22 allows the dosing assembly 3 to add a fixed amount of reagent into the dosing chamber 13. The water source interface 23 facilitates connection to an external water source, allowing for the addition of a fixed amount of water to the dosing chamber 13 for reagent preparation. The flow meter 25 and the second solenoid valve 24 facilitate quantitative control of the water added to the dosing chamber 13, enabling the preparation of a precisely proportioned flotation reagent solution. The storage chamber 31 facilitates the mixing of powder... The powdered flotation reagent is stored for convenient flotation. The flotation reagent powder is easily transported within the delivery pipe 32, fed from the dosing pipe 33 to the dosing interface 22. The delivery motor 35 controls the rotation of the feeding screw 34, thus conveying the reagent powder from the delivery pipe 32. The number of rotations of the feeding screw 34 provides initial quantitative delivery of the reagent powder. The weighing platform 212 facilitates weighing of the reagent added to the dispensing chamber 13. Due to variations in the density and sealing of the reagent powder, the quantitative feeding accuracy of the feeding screw 34 is relatively low; therefore, the weighing platform 212 further weighs the reagent powder. The weighing system precisely controls the amount of drug fed into the flotation solution, ensuring a precise ratio. The guide rail 215 limits and guides the movement of the weighing seat 211. The telescopic rod 216 controls the sliding of the weighing seat 211 along the guide rail 215. The scraper ring 210 prevents drug powder from slipping from the top of the weighing platform 212 when it weighs the dosing interface 22. If the powder level is insufficient, the dosing component 3 adds more powder. When the powder level reaches the target, the telescopic rod 216 moves the weighing seat 211 out of the bottom of the dosing interface 22, allowing the scraper ring 210 to... The powdered drug from the top of the weighing platform 212 is scraped into the mixing chamber 13 for preparation. The agitator 26 facilitates the rotation of the agitator 26 to stir the powdered drug and water, allowing the drug to fully diffuse in the water to form a flotation reagent solution. The agitator motor 28 controls the rotation of the worm gear 29, and the worm wheel 27 drives the agitator 26 to rotate, thus achieving thorough stirring of the water and reagent powder. The first solenoid valve 14 controls the reagent prepared in the corresponding mixing chamber 13 to enter the guide pipe 11, facilitating the addition of different reagent solutions at different stages of flotation.

[0044] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An automatic dosing device for coal preparation, characterized in that, The device includes a dosing assembly (1), which includes a guide tube (11). One side of the guide tube (11) is connected to several branch tubes (12). The top of the branch tubes (12) is connected to a dispensing chamber (13). A dispensing assembly (2) is provided on the top of the dispensing chamber (13). A dosing component (3) is provided on the top of the dispensing assembly (2). The dispensing assembly (2) includes a top cover (21). The top cover (21) is fixedly installed on the top of the dispensing chamber (13). One end of the top of the top cover (21) is opened. The top cover (21) has a dosing interface (22) and a water source interface (23) is provided at the other end of the top. The dosing component (3) includes a storage chamber (31), the bottom end of which is connected to a delivery pipe (32), and the bottom end of the delivery pipe (32) is connected to a dosing pipe (33). The bottom end of the dosing pipe (33) is connected to the dosing interface (22). A stirring paddle (26) is rotatably connected to the top center of the top of the top cover (21). A first solenoid valve (14) is provided in the middle of the branch pipe (12). The bottom of the dosing interface (22) is provided with a weighing seat (211), and the top of the weighing seat (211) is provided with a weighing platform (212). The weighing base (211) has guide grooves (213) at both ends of its bottom, and guide rails (215) are fixedly installed on both sides of the bottom of the dosing port (22). The guide rails (215) are slidably connected to the guide grooves (213). Push blocks (214) are fixedly installed on both sides of one end of the weighing base (211), and telescopic rods (216) are fixedly installed on the outside of the guide rail (215). The output end of the telescopic rods (216) is fixedly connected to the push blocks (214).

2. The automatic dosing device for coal preparation according to claim 1, characterized in that, The delivery tube (32) is rotatably connected to a delivery screw (34), and a delivery motor (35) is fixedly installed on the outer side of one end of the delivery tube (32). The output end of the delivery motor (35) is fixedly connected to the delivery screw (34).

3. The automatic dosing device for coal preparation according to claim 1, characterized in that, The water source interface (23) is provided with a second solenoid valve (24) in the middle, and a flow meter (25) is provided at the bottom of the second solenoid valve (24).

4. The automatic dosing device for coal preparation according to claim 3, characterized in that, A stirring motor (28) is fixedly installed at the top center of the top cover (21), and a worm gear (29) is fixedly installed at the output end of the stirring motor (28).

5. An automatic dosing device for coal preparation according to claim 4, characterized in that, The worm (29) is meshed with a worm wheel (27), and the worm wheel (27) is fixedly connected to the top of the stirring paddle (26).

6. An automatic dosing device for coal preparation according to claim 1, characterized in that, A scraper ring (210) is fixedly installed at the bottom of the dosing interface (22), and the scraper ring (210) is set on the top of the weighing platform (212).

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