Quantifying mechanism for coal water slurry dispersing agent

Abstract

The invention belongs to the technical field of quantifying mechanisms, and discloses a quantifying mechanism for a coal water slurry dispersing agent, which comprises a mounting plate, the mounting plate is provided with a cleaning mechanism, a pipe replacing mechanism and a first electromagnetic valve, two output ends of the first electromagnetic valve are respectively connected with a liquid feeding pipe and a water return pipe, and the input end of the first electromagnetic valve is connected with a lower positioning interface; a liquid storage tank is installed on the upper side of the cleaning mechanism, a lifting mechanism is installed on the outer wall of the liquid storage tank, a second electromagnetic valve is installed at the working end of the lifting mechanism, a hose is connected between one input end of the second electromagnetic valve and the liquid storage tank, and the other input end of the second electromagnetic valve is connected with a water pipe. The output end of the second electromagnetic valve is connected with a straight pipe, the side of the straight pipe is communicated with an air pipe, and the output end of the straight pipe is communicated with an upper positioning connector. A quantitative tube is installed between the upper positioning connector and the lower positioning connector, and a clamping strip and a clamping strip are arranged on the outer wall of the quantitative tube.

Description

Technical Field

[0001] This invention belongs to the field of quantitative mechanism technology, specifically relating to a quantitative mechanism for coal-water slurry dispersants. Background Technology

[0002] Coal-water slurry dispersant is a chemical additive used in the preparation of coal-water slurry. Its main function is to promote the uniform dispersion of coal particles in water and improve the rheological properties and stability of the slurry.

[0003] Currently, there are various quantitative measuring instruments available on the market, and most of them are accurate enough to meet the requirements. However, the applicant found that although the amount detected by the quantitative measuring instrument meets the standard, a certain amount of liquid will still remain inside the delivery tube after it is delivered to the designated area, which will still have a certain impact.

[0004] For example, the quantitative control of coal-water slurry dispersant needs to meet high precision requirements, as the amount of dispersant added directly affects the uniformity of coal powder dispersion and the stability of the slurry. The conventional addition amount is 2-5‰ of the dry weight of coal powder. If the deviation exceeds ±0.5‰, it may lead to abnormal viscosity (such as exceeding the range of 800-1200 mPa·s) or shortened stratification time (the standard is no stratification within 30 minutes). Therefore, further structural optimization is needed in this regard.

[0005] Furthermore, current quantitative control is mostly achieved by setting parameters. However, after a period of use, the diameter of the pipe used for delivery will be reduced. This means that although the parameters are met, the actual quantity will differ. Replacing the delivery pipe is undoubtedly a major project. Not only is it difficult to disassemble, but correcting the parameters after disassembly is also a challenge. Summary of the Invention

[0006] In view of the problems mentioned in the background art above, the object of the present invention is to provide a metering mechanism for coal-water slurry dispersants.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0008] A metering mechanism for coal-water slurry dispersant includes a mounting plate. The mounting plate is equipped with a cleaning mechanism, a pipe changing mechanism, and a first solenoid valve. The two output ends of the first solenoid valve are respectively connected to a liquid supply pipe and a water return pipe, and the input end of the first solenoid valve is connected to a lower positioning interface.

[0009] A liquid storage tank is installed on the upper side of the cleaning mechanism. A lifting mechanism is installed on the outer wall of the liquid storage tank. A second solenoid valve is installed at the working end of the lifting mechanism. A hose is connected between one input end of the second solenoid valve and the liquid storage tank. A water pipe is connected to the other input end of the second solenoid valve. A straight pipe is connected to the output end of the second solenoid valve. An air pipe is connected to the side of the straight pipe. An upper positioning interface is connected to the output end of the straight pipe.

[0010] A quantitative tube is installed between the upper positioning interface and the lower positioning interface, and the outer wall of the quantitative tube is provided with a clamping strip and a gripping strip.

[0011] The cleaning mechanism includes a cleaning hood installed on the mounting plate. An annular spray pipe is installed at the top inside the cleaning hood. Several nozzles are connected to the output end of the annular spray pipe. A water inlet is connected to the input end of the annular spray pipe. A water outlet is installed on the cleaning hood. The cleaning hood is provided with a through slot.

[0012] The tube-changing mechanism includes a cylinder mounted on the mounting plate, a motor, and a third telescopic cylinder. The output end of the third telescopic cylinder is connected to a support. The motor, the third telescopic cylinder, and the support are located inside the cylinder. A tube platform is rotatably mounted on the top of the cylinder. The tube platform has a circular groove, and a gear ring is installed in the circular groove. The gear ring meshes with a spur gear, which is installed at the output end of the motor. The tube platform has several evenly distributed bayonets, the size of which is adapted to the metering tube. The support has a T-shaped slide groove, and a T-shaped slide bar is slidably mounted in the T-shaped slide groove. A claw is installed at the end of the T-shaped slide bar, and a support plate is installed on the lower side of the T-shaped slide bar. A first telescopic cylinder is mounted on the support, and the output end of the first telescopic cylinder is connected to the support plate.

[0013] Further specifying, the lifting mechanism includes an ear plate installed on the side of the liquid storage tank, a second telescopic cylinder is installed on the ear plate, a movable plate is installed at the output end of the second telescopic cylinder, and the first solenoid valve is installed on the movable plate. With this design, controlling the telescopic operation of the second telescopic cylinder can realize the lifting and lowering movement of the movable plate, thereby achieving the purpose of automatically installing quantitative tubes of different lengths.

[0014] Furthermore, the return water pipe output end and the outlet water interface output end are connected to a water tank, and a water pump is installed in the water tank. The water pump output end is connected to the inlet water interface and the water pipe respectively. With this design, the water pump, as a well-known power device, can simply supply water, which is easy for those skilled in the relevant field to understand and install.

[0015] Furthermore, both the first and second solenoid valves are two-position three-way solenoid valves. This design allows for direct purchase and is compatible with the usage requirements of one output and two inputs or one input and two outputs in this structure.

[0016] Furthermore, the liquid storage tank is equipped with a ramp that tilts towards the inlet end of the hose. This design allows the liquid to flow towards the inlet end of the hose, thereby creating a negative pressure at the inlet end of the hose and ensuring the drainage effect.

[0017] Furthermore, the through slot is equipped with several rubber strips. This design can block water while not affecting the movement of the metering tube in and out.

[0018] Furthermore, the power cord of the motor passes through the cylinder and the cleaning hood, and a waterproof rubber head is installed at the contact point between the power cord of the motor and the cylinder and the cleaning hood. This design achieves the effect of powering the motor while ensuring waterproofing.

[0019] Furthermore, the quantitative tube is provided in various specifications, with each specification differing only in length. This design allows for different quantitative measurements with different specifications, while the difference in length is for the purpose of proper fit with the jaws and claws.

[0020] Furthermore, both the claw and the port of the jaw are equipped with rubber contact strips. This design allows for a certain deformation when in contact with the metering tube, thereby enabling the metering tube to be removed from or inserted into the jaw by the claw.

[0021] Furthermore, both the lower positioning interface and the upper positioning interface are equipped with a central tube. This design can further limit the upper and lower ends of the metering tube, while ensuring the effectiveness of liquid entering the metering tube.

[0022] The beneficial effects of using the present invention are as follows:

[0023] This invention uses a quantitative tube for quantification, meaning the quantitative tube is detachable. Therefore, after a period of use, it can be used again simply by replacing it with a new quantitative tube. This makes it easy to replace without the hassle of parameter correction.

[0024] After each quantification, the present invention uses gas to achieve a blowing-type cleaning of the pipeline, ensuring that there is no residue in the pipeline and thus not affecting subsequent quantifications.

[0025] This invention enables automatic replacement of the metering tube, is compatible with automated equipment, and can also rinse the metering tube after replacement to prevent liquid residue inside the metering tube from corroding it and affecting subsequent use. Attached Figure Description

[0026] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0027] Figure 1 This is a schematic diagram of the structure of a metering mechanism for a coal-water slurry dispersant according to an embodiment of the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of a metering mechanism for a coal-water slurry dispersant according to an embodiment of the present invention. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the internal structure of the cleaning hood in an embodiment of the metering mechanism for the coal-water slurry dispersant of the present invention;

[0030] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the metering mechanism for the coal-water slurry dispersant of the present invention;

[0031] The symbols for the main components are explained below:

[0032] Mounting plate 1; Cleaning mechanism 2; Pipe changing mechanism 3; First solenoid valve 4; Liquid supply pipe 5; Water return pipe 6; Lower positioning interface 7; Liquid storage tank 8; Inclined platform 81; Lifting mechanism 9; Second solenoid valve 10; Hose 11; Water pipe 12; Straight pipe 13; Air pipe 14; Upper positioning interface 15; Metering tube 16; Clamping strip 17; Gripping strip 18;

[0033] 21. Cleaning hood; 22. Annular spray pipe; 23. Spray nozzle; 24. Water inlet; 25. Water outlet; 26. Through groove; 27. Rubber strip;

[0034] 31. Cylinder; 32. Motor; 33. Support; 34. Pipe platform; 35. Circular groove; 36. Gear ring; 37. Circular gear; 38. Bayonet; 39. T-shaped slide groove; 310. T-shaped slide bar; 311. Claw; 312. Support plate; 313. First telescopic cylinder; 314. Third telescopic cylinder;

[0035] Ear plate 91; second telescopic cylinder 92; moving plate 93. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] like Figures 1-4 As shown, the quantitative mechanism for the coal-water slurry dispersant of the present invention includes a mounting plate 1. The mounting plate 1 is equipped with a cleaning mechanism 2, a pipe changing mechanism 3 and a first solenoid valve 4. The two output ends of the first solenoid valve 4 are respectively connected to a liquid supply pipe 5 and a water return pipe 6. The input end of the first solenoid valve 4 is connected to a lower positioning interface 7.

[0038] A liquid storage tank 8 is installed on the upper side of the cleaning mechanism 2. A lifting mechanism 9 is installed on the outer wall of the liquid storage tank 8. A second solenoid valve 10 is installed at the working end of the lifting mechanism 9. A hose 11 is connected between one input end of the second solenoid valve 10 and the liquid storage tank 8. A water pipe 12 is connected to the other input end of the second solenoid valve 10. A straight pipe 13 is connected to the output end of the second solenoid valve 10. An air pipe 14 is connected to the side of the straight pipe 13. An upper positioning interface 15 is connected to the output end of the straight pipe 13.

[0039] A quantitative tube 16 is installed between the upper positioning interface 15 and the lower positioning interface 7. The outer wall of the quantitative tube 16 is provided with a clamping strip 17 and a gripping strip 18.

[0040] The cleaning mechanism 2 includes a cleaning hood 21 installed on the mounting plate 1. An annular spray pipe 22 is installed on the top of the cleaning hood 21. Several nozzles 23 are connected to the output end of the annular spray pipe 22. A water inlet 24 is connected to the input end of the annular spray pipe 22. A water outlet 25 is installed on the cleaning hood 21. The cleaning hood 21 is provided with a through slot 26.

[0041] The tube changing mechanism 3 includes a cylinder 31 mounted on the mounting plate 1, a motor 32, and a third telescopic cylinder 314. The output end of the third telescopic cylinder 314 is connected to a support 33. The motor 32, the third telescopic cylinder 314, and the support 33 are located inside the cylinder 31. A tube platform 34 is rotatably mounted on the top of the cylinder 31. The tube platform 34 has a circular groove 35. A toothed ring 36 is installed in the circular groove 35. A spur gear 37 meshes with the toothed ring 36. The spur gear 37 is installed at the output end of the motor 32. The tube platform 34 is evenly provided with several bayonets 38. The bayonets 38 are adapted to the size of the metering tube 16. The support 33 has a T-shaped slide groove 39. A T-shaped slide bar 310 is slidably mounted in the T-shaped slide groove 39. A claw 311 is installed at the end of the T-shaped slide bar 310. A support plate 312 is installed on the lower side of the T-shaped slide bar 310. A first telescopic cylinder 313 is mounted on the support 33. The output end of the first telescopic cylinder 313 is connected to the support plate 312.

[0042] The preferred lifting mechanism 9 includes an ear plate 91 installed on the side of the liquid storage tank 8. The ear plate 91 is equipped with a second telescopic cylinder 92. A movable plate 93 is installed at the output end of the second telescopic cylinder 92. A first solenoid valve 4 is installed on the movable plate 93. With this design, controlling the telescopic operation of the second telescopic cylinder 92 can realize the lifting and lowering movement of the movable plate 93, thereby achieving the purpose of automatically installing quantitative tubes 16 of different lengths. In fact, the structure of the lifting mechanism 9 can also be considered according to the specific situation.

[0043] The preferred design is that the output end of the return water pipe 6 and the output end of the outlet water interface 25 are connected to a water tank, and a water pump is installed in the water tank. The output end of the water pump is connected to the inlet water interface 24 and the water pipe 12 respectively. With this design, the water pump, as a well-known power device, can simply supply water. This is not difficult for technicians in related fields to understand and install. In fact, the installation position of the water tank and the water pump can also be considered according to the specific situation.

[0044] Preferably, both the first solenoid valve 4 and the second solenoid valve 10 are two-position three-way solenoid valves. This design allows for direct purchase and can adapt to the usage requirements of one output and two inputs or one input and two outputs in this structure. In fact, the selection of the first solenoid valve 4 and the second solenoid valve 10 can also be considered according to the specific situation.

[0045] The preferred liquid storage tank 8 is provided with a ramp 81 that is inclined toward the inlet end of the hose 11. With this design, the liquid can flow toward the inlet end of the hose 11, thereby forming a negative pressure at the inlet end of the hose 11 to ensure the drainage effect. In fact, measures to facilitate drainage can also be considered according to specific circumstances.

[0046] The preferred through-slot 26 is equipped with several rubber strips 27. This design can block water while not affecting the movement of the metering tube 16 in and out. In fact, waterproofing measures can also be considered depending on the specific situation.

[0047] The preferred design is that the power cord of the motor 32 passes through the cylinder 31 and the cleaning hood 21. A waterproof rubber head is installed at the contact point between the power cord of the motor 32 and the cylinder 31 and the cleaning hood 21. This design achieves the power supply effect of the motor 32 while ensuring the waterproof effect. In fact, the wiring method of the power cord of the motor 32 can also be considered according to the specific situation.

[0048] The preferred quantitative tube 16 is available in various specifications, with each specification differing only in length. This design allows for different quantitative measurements due to the different specifications. The difference in length is for the purpose of matching the jaws 38 and claws 311. In fact, the specifications of the quantitative tube 16 can also be customized according to specific circumstances.

[0049] Preferably, both the claw 311 and the bayonet 38 are equipped with rubber contact strips at their ends. This design allows for a certain deformation when in contact with the quantitative tube 16, thereby enabling the quantitative tube 16 to be removed or placed from the bayonet 38 by the claw 311. In practice, measures for gripping and placing the quantitative tube 16 by the claw 311 and the bayonet 38 can also be considered depending on the specific circumstances.

[0050] Preferably, both the lower positioning interface 7 and the upper positioning interface 15 are equipped with a central tube. This design can further limit the upper and lower ends of the metering tube 16, while ensuring the effectiveness of liquid entering the metering tube 16. In fact, the structural style of the lower positioning interface 7 and the upper positioning interface 15 can also be considered according to the specific situation.

[0051] In this implementation case, when using the metering mechanism for the coal-water slurry dispersant, the dispersant is stored in the storage tank 8, enters the metering tube 16 for metering after passing through the second solenoid valve 10, and then is discharged into the required equipment through the supply pipe 5 via the first solenoid valve 4. After the discharge is completed, the air pipe 14 is supplied with air to perform a blowing cleaning of the entire path. Furthermore, before the air pipe 14 is supplied with air, cleaning water can be filled into the interior to achieve the purpose of rinsing.

[0052] Specifically, the input end of the first solenoid valve 4 is closed, the hose 11 on the second solenoid valve 10 is connected, the water pipe 12 is closed, and the dispersant flows into the metering tube 16 under its own weight. It should be noted that a one-way valve is installed at the output end of the air pipe 14 to prevent the dispersant from entering the air pipe 14. Then, the second solenoid valve 10 is closed, the input end of the first solenoid valve 4 is opened, the liquid supply pipe 5 of the first solenoid valve 4 is opened, and the water return pipe 6 is closed. The dispersant is then discharged from the liquid supply pipe 5 into the required equipment. After one metering is given, the liquid supply pipe 5 of the first solenoid valve 4 is closed, the water return pipe 6 is opened, the hose 11 of the second solenoid valve 10 is closed, and the water pipe 12 is opened. The water pipe 12 delivers water to flush the inside of the metering tube 16. The water flows back to the water tank from the water return pipe 6 to achieve circulation. Then, the water pipe 12 of the second solenoid valve 10 is closed, and the air pipe 14 starts to deliver air to dry the inside of the metering tube 16.

[0053] When the metering tube 16 needs to be replaced, the first telescopic cylinder 313 operates, causing the T-shaped slide bar 310 and its end claw 311 to extend out of the cleaning cover 21 and contact the metering tube 16, locking the metering tube 16. It should be noted that the claw 311 can grip the tube by force or by using a finger cylinder, as long as the metering tube 16 is held securely. Then, the lifting mechanism 9 operates, disengaging the upper positioning mechanism 15 from the metering tube. Then, the third telescopic cylinder 314 operates, lifting the support 33 and then the metering tube 16, thus disengaging the metering tube 16 from the lower positioning interface 7. The first telescopic cylinder 313 retracts, dragging the metering tube 16 into the cleaning cover 21. During this action, the third telescopic cylinder 314 simultaneously moves back to its original position, and the metering tube 16 is pulled into the cleaning cover 21 and placed in the bayonet 38. The first telescopic cylinder 313 returns to its original position, allowing the claw 311 to... The metering tube 16 is disengaged, and then the motor 32 runs, driving the spur gear 37 to rotate. With the cooperation of the gear ring 36, the tube platform 34 rotates, moving the metering tube 16 in the corresponding bayonet 38 to the through slot 26. Then the first telescopic cylinder 313 runs, pushing the metering tube 16 out of the bayonet 38 until the metering tube 16 is moved between the lower positioning interface 7 and the upper positioning interface 15. During this action, the third telescopic cylinder 314 runs synchronously to lift the metering tube 16 to prevent the lower end of the metering tube 16 from colliding with the lower positioning interface 7. After the metering tube 16 is in place, the third telescopic cylinder 314 retracts, so that the lower end of the metering tube 16 is inserted into the lower positioning interface 7 to achieve docking. Then the lifting mechanism 9 runs, inserting the upper positioning interface 15 into the upper end of the metering tube 16 and holding it. In this way, the replacement of the metering tube 16 is realized, and all components of the tube replacement mechanism 3 return to the safe position.

[0054] After the metering tube 16 is replaced, it can be rinsed in the cleaning hood 21. Water enters through the water inlet 24 and sprays out from the nozzle 23 on the annular spray pipe 22. The sprayed water is discharged back through the water outlet 25.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A quantitative mechanism for coal water slurry dispersant, comprising a mounting plate (1), characterized in that: The mounting plate (1) is equipped with a cleaning mechanism (2), a pipe changing mechanism (3) and a first solenoid valve (4). The two output ends of the first solenoid valve (4) are respectively connected to a liquid supply pipe (5) and a water return pipe (6). The input end of the first solenoid valve (4) is connected to a lower positioning interface (7). A liquid storage tank (8) is installed on the upper side of the cleaning mechanism (2). A lifting mechanism (9) is installed on the outer wall of the liquid storage tank (8). A second solenoid valve (10) is installed at the working end of the lifting mechanism (9). A hose (11) is connected between one input end of the second solenoid valve (10) and the liquid storage tank (8). A water pipe (12) is connected to the other input end of the second solenoid valve (10). A straight pipe (13) is connected to the output end of the second solenoid valve (10). An air pipe (14) is connected to the side of the straight pipe (13). An upper positioning interface (15) is connected to the output end of the straight pipe (13). A quantitative tube (16) is installed between the upper positioning interface (15) and the lower positioning interface (7). The outer wall of the quantitative tube (16) is provided with a locking strip (17) and a clamping strip (18). The cleaning mechanism (2) includes a cleaning hood (21) installed on the mounting plate (1). An annular spray pipe (22) is installed on the top inside the cleaning hood (21). A plurality of nozzles (23) are connected to the output end of the annular spray pipe (22). A water inlet (24) is connected to the input end of the annular spray pipe (22). A water outlet (25) is installed on the cleaning hood (21). The cleaning hood (21) is provided with a through slot (26). The pipe-changing mechanism (3) includes a cylinder (31) mounted on the mounting plate (1), a motor (32), and a third telescopic cylinder (314). The output end of the third telescopic cylinder (314) is connected to a support (33). The motor (32), the third telescopic cylinder (314), and the support (33) are located inside the cylinder (31). A pipe platform (34) is rotatably mounted on the top of the cylinder (31). The pipe platform (34) has a circular groove (35). A gear ring (36) is installed in the circular groove (35). The gear ring (36) meshes with a spur gear (37). 7) Installed at the output end of the motor (32), the tube platform (34) is evenly provided with several bayonets (38), the bayonets (38) are adapted to the size of the quantitative tube (16), the support (33) is provided with a T-shaped slide groove (39), a T-shaped slide bar (310) is slidably installed in the T-shaped slide groove (39), a claw (311) is installed at the end of the T-shaped slide bar (310), a support plate (312) is installed on the lower side of the T-shaped slide bar (310), and a first telescopic cylinder (313) is installed on the support (33), the output end of the first telescopic cylinder (313) is connected to the support plate (312).

2. The water coal slurry dispersant dosing mechanism according to claim 1, characterized in that: The lifting mechanism (9) includes an ear plate (91) installed on the side of the liquid storage tank (8), a second telescopic cylinder (92) is installed on the ear plate (91), a movable plate (93) is installed at the output end of the second telescopic cylinder (92), and the first solenoid valve (4) is installed on the movable plate (93).

3. The water coal slurry dispersant dosing mechanism according to claim 1, characterized in that: The return water pipe (6) output end and the outlet water interface (25) output end are connected to a water tank. A water pump is installed in the water tank. The water pump output end is connected to the inlet water interface (24) and the water pipe (12) respectively.

4. The water coal slurry dispersant dosing mechanism according to claim 1, characterized in that: Both the first solenoid valve (4) and the second solenoid valve (10) are two-position three-way solenoid valves.

5. The water coal slurry dispersant dosing mechanism according to claim 1, characterized in that: The liquid storage tank (8) is provided with a ramp (81) that is inclined toward the input end of the hose (11).

6. The metering mechanism for coal-water slurry dispersant according to claim 1, characterized in that: The through slot (26) is fitted with several rubber strips (27).

7. The metering mechanism for coal-water slurry dispersant according to claim 1, characterized in that: The power cord of the motor (32) passes through the cylinder (31) and the cleaning hood (21), and a waterproof rubber head is installed at the contact point between the power cord of the motor (32) and the cylinder (31) and the cleaning hood (21).

8. The metering mechanism for the coal-water slurry dispersant according to claim 1, characterized in that: The quantitative tube (16) is available in various specifications, with each specification of quantitative tube (16) differing only in length.

9. The metering mechanism for coal-water slurry dispersant according to claim 1, characterized in that: Both the claw (311) and the bayonet (38) are equipped with rubber contact strips at their ports.

10. The metering mechanism for coal-water slurry dispersant according to claim 1, characterized in that: Both the lower positioning interface (7) and the upper positioning interface (15) are equipped with a central tube.

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