Intelligent dosing device for coal slime dehydration

Abstract

The utility model relates to the technical field of intelligent dosing for coal slime dehydration, and discloses an intelligent dosing for coal slime dehydration, which comprises an agent cylinder and a mixing cylinder, the bottom end of the agent cylinder is fixedly connected with a stirring seat, the top end of the agent cylinder is fixedly connected with a stirring top plate, and the middle part of the right side of the top end of the stirring top plate is fixedly connected with a stirring motor. An oblique bevel gear is rotationally connected to the middle of the left side of the stirring motor, an upper fluted disc and a lower fluted disc are rotationally connected to the top and the bottom of the outer side of the oblique bevel gear respectively, a stirring rod is fixedly connected to the middle of the bottom end of the upper fluted disc, and a lower cutting rod is fixedly connected to a triangle of the bottom of the outer side of the stirring rod. A flocculation agent is mixed and stirred by the mixing and stirring barrel through the bidirectional coaxial stirring rod, so that the flocculation agent can be fully mixed with proportioning liquid, and high-pressure gas is pumped to the bottom of the mixing box through the high-pressure gas pump, so that the mixed liquid is continuously stirred and mixed in the mixing box.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent dosing for slime dewatering, in particular to an intelligent dosing device for slime dewatering. Background Technique

[0002] Slime dewatering refers to the process of removing the water contained in slime. Slime usually contains a high level of water and needs to be dewatered in many cases for the following main reasons: Facilitate transportation and storage: Reducing water content can lower transportation costs and prevent problems such as deterioration and caking during storage due to excessive water. Improve utilization value: Dewatered slime can be better used for purposes such as combustion, enhancing its economic value. Meet environmental protection requirements: Reducing water helps with subsequent treatment and disposal, reducing the impact on the environment. Common slime dewatering methods include: Mechanical dewatering: Using equipment such as filter presses and centrifuges to squeeze out water through mechanical force. Thermal dewatering: Utilizing heat energy to evaporate water. For example, in a coal preparation plant, the slime produced after washing is dewatered by a filter press to reduce its water content, and then it can be sold to relevant enterprises for power generation and other uses; or in some coal processing enterprises, thermal drying is used to dewater slime to obtain a product that better meets requirements. Slime dewatering is of great significance for the efficient operation and rational utilization of resources in the coal industry.

[0003] Slime dewatering dosing means adding chemical agents during the slime dewatering process to improve the dewatering effect and slime quality. The following are some common slime dewatering dosing agents and their functions: Flocculant: Causes slime particles to aggregate into larger flocs, accelerating sedimentation and improving dewatering efficiency. Coagulant: Neutralizes the charge on the surface of slime particles, reducing the repulsive force between particles and promoting the flocculation effect. Filter aid: Improves the filtration performance of slime and reduces the moisture content of the filter cake. Defoamer: Eliminates the foam in the slime water to improve the dewatering effect. When performing slime dewatering dosing, the following points need to be noted: Agent selection: Select the appropriate type and dosage of agent according to factors such as the properties of slime, particle size distribution, and dewatering process. Dosing location: Determine the optimal dosing location to ensure full mixing of the agent and slime. Agent concentration: Control the concentration of the agent to avoid the influence of too high or too low concentration on the dewatering effect. Dosing sequence: Add agents in a certain sequence to give full play to their synergistic effects. Monitoring and adjustment: Regularly monitor the slime dewatering effect and water quality indicators, and adjust the type and dosage of the agent according to the actual situation. In addition, different coal preparation plants may adopt different slime dewatering dosing schemes, and the specific dosing methods and agent dosages need to be tested and optimized according to the actual situation. At the same time, operators need to strictly abide by the operating procedures to ensure the safety and stability of the dosing process.

[0004] In the existing coal slime dewatering chemical dosing device, the chemical dosing and mixing are uneven. The mixing effect of the coal slime and the flocculant in the coal slime water is not good, and the coal slime cannot be flocculated and combined, which is not conducive to the subsequent dewatering and processing procedures. Moreover, when the dewatering chemical is added into the mixing barrel, some of the liquid medicine appears extremely thick, while the other part is relatively thin, and the mixing is very uneven. Summary of the Invention

[0005] To make up for the above deficiencies, the present invention provides an intelligent chemical dosing device for coal slime dewatering, aiming to improve the problems of uneven mixing of coal slime and flocculant and uneven mixing of chemical dosing in the existing intelligent chemical dosing device for coal slime dewatering.

[0006] To achieve the above object, the present invention adopts the following technical scheme: An intelligent chemical dosing device for coal slime dewatering, including a chemical agent barrel and a mixing barrel. The bottom end of the chemical agent barrel is fixedly connected with a stirring base, the top end of the chemical agent barrel is fixedly connected with a stirring top plate. The middle part of the right side of the top end of the stirring top plate is fixedly connected with a stirring motor. The middle part of the left side of the stirring motor is rotationally connected with an inclined bevel gear. The top and bottom of the outside of the inclined bevel gear are respectively rotationally connected with an upper gear disk and a lower gear disk. The middle part of the bottom end of the upper gear disk is fixedly connected with a stirring rod. The bottom of the outside of the stirring rod is triangularly fixedly connected with a lower cutting rod. The middle and lower part of the outside of the stirring rod is triangularly fixedly connected with an upper cutting rod. The middle part of the bottom end of the lower gear disk is fixedly connected with a stirring ring. The bottom of the outside of the stirring ring is triangularly fixedly connected with a lower cutting rod. The top of the outside of the stirring ring is triangularly fixedly connected with an upper cutting rod. Stirring blades are equidistantly fixedly connected between the upper cutting rod and the lower cutting rod. The middle part of the bottom end of the lower cutting rod is fixedly connected with a scraping plate. In the middle of the bottom end of the mixing barrel and annularly and equidistantly distributed are aeration disks. The middle part of the top end of the aeration disk is fixedly connected with an aeration pipe. The aeration pipe is communicated with a high-pressure blower. The bottom end of the aeration disk is provided with aeration holes.

[0007] As a further description of the above technical solution:

[0008] The four corners of the bottom end of the stirring base are fixedly connected with stirring legs, and the four corners of the bottom end of the mixing barrel are fixedly connected with mixing legs.

[0009] As a further description of the above technical solution:

[0010] The middle part of the inner side of the chemical agent barrel is fixedly connected with an annular column support, and the top end of the mixing barrel is fixedly connected with an aeration support.

[0011] As a further description of the above technical solution:

[0012] A chemical agent pipe is fixedly connected between the stirring base and the bottom end of the mixing barrel, and a chemical agent pump is fixedly connected to the middle part of the outside of the chemical agent pipe.

[0013] As a further description of the above technical solution:

[0014] In the middle of the left side of the top end of the stirring top plate, a feed inlet is fixedly connected, and on the right side of the top of the outer side of the mixing cylinder, a discharge outlet is fixedly connected.

[0015] As a further description of the above technical solution:

[0016] In the middle of the top end of the stirring top plate, a stirring frame is fixedly connected.

[0017] As a further description of the above technical solution:

[0018] Tooth grooves are formed on the outer side of the bevel gear, and helical tooth grooves are formed at the bottom ends of the upper tooth disc and the lower tooth disc.

[0019] As a further description of the above technical solution:

[0020] In the middle of the top end of the stirring seat, a rotating seat is fixedly connected, and a fixed stirring rod.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the bidirectional coaxial stirring rod, the flocculant is mixed and stirred in the mixing barrel, so that the flocculant can be fully mixed with the proportioning liquid.

[0023] 2. In the utility model, the high-pressure gas is pumped to the bottom of the mixing tank through the high-pressure air pump, and the mixed liquid settled at the bottom of the mixing tank is turned over to the top of the mixing tank, so that the mixed liquid is continuously agitated and mixed in the mixing tank. Description of the Drawings

[0024] Figure 1 It is a three-dimensional view of an intelligent dosing device for coal slime dewatering proposed by the utility model;

[0025] Figure 2 It is a structural schematic diagram of the stirring rod of an intelligent dosing device for coal slime dewatering proposed by the utility model;

[0026] Figure 3 It is a sectional structural schematic diagram of the medicine cylinder of an intelligent dosing device for coal slime dewatering proposed by the utility model;

[0027] Figure 4 It is a structural schematic diagram of the aeration of an intelligent dosing device for coal slime dewatering proposed by the utility model.

[0028] Legend Explanation:

[0029] 1. Reagent cylinder; 2. Stirring base; 3. Stirring frame; 4. Feed inlet; 5. Upper gear disk; 6. Lower gear disk; 7. Bevel gear; 8. Stirring motor; 9. Stirring ring; 10. Stirring rod; 11. Upper cutting rod; 12. Lower cutting rod; 13. Stirring blade; 14. Reagent pipe; 15. Reagent pump; 16. Mixing cylinder; 17. Aeration disk; 18. Aeration pipeline; 19. Aeration support; 20. Stirring support leg; 21. Mixing support leg; 22. Discharge outlet; 23. Scraping plate; 24. Ring column support; 25. Stirring top plate. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Referring to Figures 1-3 , an embodiment provided by the present invention: An intelligent chemical dosing device for coal slime dewatering, including a reagent cylinder 1 and a mixing cylinder 16. The bottom end of the reagent cylinder 1 is fixedly connected to a stirring base 2, the top end of the reagent cylinder 1 is fixedly connected to a stirring top plate 25, the middle of the right side of the top end of the stirring top plate 25 is fixedly connected to a stirring motor 8, the middle of the left side of the stirring motor 8 is rotatably connected to a bevel gear 7, the top and bottom of the outside of the bevel gear 7 are respectively rotatably connected to an upper gear disk 5 and a lower gear disk 6, the middle of the bottom end of the upper gear disk 5 is fixedly connected to a stirring rod 10, the bottom of the outside of the stirring rod 10 is fixedly connected to a lower cutting rod 12 in a triangular shape, the middle and lower part of the outside of the stirring rod 10 is fixedly connected to an upper cutting rod 11 in a triangular shape, the middle of the bottom end of the lower gear disk 6 is fixedly connected to a stirring ring 9, the bottom of the outside of the stirring ring 9 is fixedly connected to a lower cutting rod 12 in a triangular shape, the top of the outside of the stirring ring 9 is fixedly connected to an upper cutting rod 11 in a triangular shape, the stirring blades 13 are fixedly connected at equal intervals between the upper cutting rod 11 and the lower cutting rod 12, the middle of the bottom end of the lower cutting rod 12 is fixedly connected to a scraping plate 23. Workers add the flocculant reagent into the reagent cylinder 1 through the feed inlet 4, and then start the stirring motor 8, so that the stirring motor 8 drives the bevel gear 7 to rotate. At the same time, the bevel gear 7 drives the upper gear disk 5 and the lower gear disk 6 to rotate, prompting the stirring ring 9 and the stirring rod 10 to rotate coaxially. At this time, the stirring blades 13 between the upper cutting rod 11 and the lower cutting rod 12 on the stirring ring 9 stir and mix the reagent clockwise, and the stirring blades 13 between the upper cutting rod 11 and the lower cutting rod 12 on the stirring rod 10 stir and mix the reagent counterclockwise. At the same time, the lower cutting rod 12 on the stirring rod 10 drives the scraping plate 23 to stir up the reagent precipitated at the bottom of the reagent cylinder 1, so that the reagent can be fully mixed.

[0032] Referring to Figure 1 and Figure 4, in the middle of the inner bottom end of the mixing cylinder 16, aeration discs 17 are distributed annularly and equidistantly. In the middle of the top end of the aeration disc 17, an aeration pipe 18 is fixedly connected. The aeration pipe 18 is communicated with a high-pressure blower. Aeration holes are opened at the bottom end of the aeration disc 17. At the top end of the mixing cylinder 16, an aeration support 19 is fixedly connected. The high-pressure blower pumps high-pressure air into the aeration pipe 18, causing the aeration disc 17 to continuously aerate in the mixed liquid. At the same time, workers transport the slime mixed liquid to the bottom of the mixing cylinder 16 through a pipeline, enabling the liquid medicine and the slime mixed liquid to be fully mixed, forming flocculent masses. The large flocculent masses are discharged through the discharge port 22 and transported to a solid-liquid separator for dehydration treatment.

[0033] Refer to Figures 1-3 , at the four corners of the bottom end of the stirring seat 2, stirring legs 20 are fixedly connected. At the four corners of the bottom end of the mixing cylinder 16, mixing legs 21 are fixedly connected. In the middle of the inner side of the medicine cylinder 1, an annular column support 24 is fixedly connected. Between the bottom ends of the stirring seat 2 and the mixing cylinder 16, a medicine pipe 14 is fixedly connected. In the middle of the outer side of the medicine pipe 14, a medicine pump 15 is fixedly connected. At the middle left of the top end of the stirring top plate 25, a feed port 4 is fixedly connected. At the top right of the outer side of the mixing cylinder 16, a discharge port 22 is fixedly connected. At the middle of the top end of the stirring top plate 25, a stirring frame 3 is fixedly connected. Tooth grooves are opened on the outer side of the bevel gear 7. Helical tooth grooves are opened at the bottom ends of the upper tooth disc 5 and the lower tooth disc 6. At the middle of the top end of the stirring seat 2, a rotating seat and a fixed stirring rod 10 are fixedly connected. The medicine pump 15 pumps the liquid medicine in the medicine cylinder 1 into the mixing cylinder 16 through the medicine pipe 14.

[0034] Working principle: Workers add the flocculant through the feed port 4 into the medicine cylinder 1. Subsequently, the stirring motor 8 is started, causing the stirring motor 8 to drive the bevel gear 7 to rotate. At the same time, the bevel gear 7 drives the upper tooth disc 5 and the lower tooth disc 6 to rotate, prompting the stirring ring 9 and the stirring rod 10 to rotate coaxially. At this time, the stirring blades 13 between the upper cutting rod 11 and the lower cutting rod 12 on the stirring ring 9 stir and mix the liquid medicine clockwise, and the stirring blades 13 between the upper cutting rod 11 and the lower cutting rod 12 on the stirring rod 10 stir and mix the liquid medicine counterclockwise. At the same time, the lower cutting rod 12 on the stirring rod 10 drives the scraping plate 23 to stir up the liquid medicine precipitated at the bottom of the medicine cylinder 1, enabling the liquid medicine to be fully mixed. Subsequently, the medicine pump 15 pumps the liquid medicine in the medicine cylinder 1 into the mixing cylinder 16 through the medicine pipe 14. At the same time, the high-pressure blower pumps high-pressure air into the aeration pipe 18, causing the aeration disc 17 to continuously aerate in the mixed liquid. At the same time, workers transport the slime mixed liquid to the bottom of the mixing cylinder 16 through a pipeline, enabling the liquid medicine and the slime mixed liquid to be fully mixed, forming flocculent masses. The large flocculent masses are discharged through the discharge port 22 and transported to a solid-liquid separator for dehydration treatment.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An intelligent dosing device for coal slime dehydration, comprising a dosing cartridge (1) and a mixing cartridge (16), characterized in that: The bottom end of the medicine barrel (1) is fixedly connected to a stirring seat (2), the top end of the medicine barrel (1) is fixedly connected to a stirring top plate (25), the middle part of the top right side of the stirring top plate (25) is fixedly connected to a stirring motor (8), the middle part of the left side of the stirring motor (8) is rotatably connected to an oblique bevel gear (7), the top and bottom of the outer side of the oblique bevel gear (7) are respectively rotatably connected to an upper toothed disc (5) and a lower toothed disc (6), the middle part of the bottom end of the upper toothed disc (5) is fixedly connected to a stirring rod (10), the bottom triangle of the outer side of the stirring rod (10) is fixedly connected to a lower cutting rod (12), the middle and lower triangle of the outer side of the stirring rod (10) is fixedly connected to an upper cutting rod (11), and the lower toothed disc ( 6) A stirring ring (9) is fixedly connected to the middle of the bottom end, a lower cutting rod (12) is fixedly connected to the bottom triangle outside the stirring ring (9), an upper cutting rod (11) is fixedly connected to the top triangle outside the stirring ring (9), stirring blades (13) are fixedly connected equidistantly between the upper cutting rod (11) and the lower cutting rod (12), a scraper plate (23) is fixedly connected to the middle of the bottom end of the lower cutting rod (12), aeration plates (17) are equidistantly distributed in the middle of the bottom end and in a ring shape inside the mixing barrel (16), an aeration pipe (18) is fixedly connected to the middle of the top end of the aeration plate (17), the aeration pipe (18) is connected to a high-pressure fan, and an aeration hole is opened at the bottom of the aeration plate (17).

2. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: The four corners of the bottom end of the stirring seat (2) are fixedly connected to stirring legs (20), and the four corners of the bottom end of the mixing cylinder (16) are fixedly connected to mixing legs (21).

3. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: A ring column support (24) is fixedly connected to the middle of the inner side of the medicine cylinder (1), and an aeration support (19) is fixedly connected to the top of the mixing cylinder (16).

4. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: A medicine tube (14) is fixedly connected between the stirring seat (2) and the bottom end of the mixing cylinder (16), and a medicine pump (15) is fixedly connected to the middle part of the outer side of the medicine tube (14).

5. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: A feed port (4) is fixedly connected to the middle of the left side of the top end of the stirring top plate (25), and a discharge port (22) is fixedly connected to the right side of the top outside of the mixing cylinder (16).

6. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: A stirring frame (3) is fixedly connected to the middle of the top end of the stirring top plate (25).

7. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: The outer side of the bevel gear (7) is provided with tooth grooves, and the bottom ends of the upper toothed disc (5) and the lower toothed disc (6) are provided with bevel tooth grooves.

8. The intelligent dosing system for coal slime dehydration according to claim 1, characterized in that: The middle part of the top end of the stirring seat (2) is fixedly connected with a rotating seat to fix the stirring rod (10).

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