Crushing and grinding equipment for chemical powder preparation

Abstract

The utility model relates to the technical field of chemical industry, and discloses crushing and grinding equipment for preparing chemical powder, which comprises a chemical raw material crushing box, and a crushing cavity and a grinding cavity are arranged in the chemical raw material crushing box; two crushing rollers are rotationally mounted in the crushing cavity; the two crushing rollers are driven by a power mechanism, and the power mechanism is mounted on the chemical raw material crushing box; the grinding cavity is in a funnel shape, two grinding cylinders are rotatably mounted in the grinding cavity, and each grinding cylinder is matched with the grinding cavity; the two grinding cylinders are coaxially arranged up and down and are in transmission fit through a connecting piece; the lower grinding cylinder is in transmission fit with a power mechanism through a linkage mechanism; and a driving part is mounted in the grinding cavity and is in transmission fit with the upper grinding cylinder, so that the upper grinding cylinder moves up and down. When the grinding cylinder located on the upper portion is used for rotary grinding, chemical raw materials can be crushed through extrusion force generated when the grinding cylinder moves up and down, the grinding modes are diversified, the grinding effect is improved, and meanwhile the grinding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, and in particular to a pulverizing and grinding equipment for preparing chemical powders. Background Technology

[0002] The preparation of chemical powders typically involves multiple steps and processes. These include raw material preparation, crushing and mixing, adding auxiliary materials, molding and drying, packaging and storage, etc. During the crushing and mixing process, chemical raw materials need to be fed into a crushing and grinding mill to pulverize them into fine powder, thereby improving their solubility and stability. For example, in the processing of copper smelting slag collectors, raw material crushing and grinding equipment is required.

[0003] The multi-stage grinding mechanism described in announcement number CN219596747U includes a grinding box. Two drive rollers are connected and fixedly mounted on the right side of their outer diameters, with the two drive gears meshing with each other. A second grinding roller and a first grinding roller are connected and fixedly mounted on the top and bottom of the outer diameter of the drive shaft, respectively. Evenly distributed grinding teeth are fixedly mounted on the outer diameters of both the second and first grinding rollers. This multi-stage grinding mechanism, through the meshing of the two drive gears, drives the drive rollers to rotate. Under the mutual compression of the two drive rollers and the grinding teeth, the blocky phosphorus pentoxide is initially ground. By starting the grinding motor, the second and first grinding rollers are simultaneously driven, and under the mutual grinding action of the grinding male and female teeth, the phosphorus pentoxide is ground stage by stage.

[0004] Based on the above technical features, the problem is that the force exerted by the second grinding roller of the existing crushing mechanism on the chemical raw materials for crushing and grinding is too singular, which results in poor initial powdering and grinding effect of the second grinding roller on the chemical raw materials, and at the same time reduces the efficiency of initial powdering and grinding.

[0005] Therefore, it is necessary to solve the above problems by using pulverizing and grinding equipment for the preparation of chemical powders. Utility Model Content

[0006] The purpose of this invention is to provide a pulverizing and grinding equipment for preparing chemical powders, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pulverizing and grinding equipment for preparing chemical powders, comprising a chemical raw material pulverizing box, wherein a pulverizing chamber and a grinding chamber are provided inside the chemical raw material pulverizing box, the pulverizing chamber being located above and communicating with the grinding chamber; two pulverizing rollers, arranged symmetrically one in front of the other and horizontally positioned, are rotatably installed inside the pulverizing chamber; the two pulverizing rollers are driven by a power mechanism installed on the chemical raw material pulverizing box; the grinding chamber is funnel-shaped, and two grinding cylinders are rotatably installed inside the grinding chamber, each grinding cylinder being arranged in an inverted frustum shape and matching the grinding chamber; the two grinding cylinders are coaxially arranged one above the other and are simultaneously connected by a connecting component; the lower grinding cylinder is connected to the power mechanism through a linkage mechanism to drive the two grinding cylinders to rotate; a driving component is installed inside the grinding chamber, and the driving component is connected to the upper grinding cylinder to cause the upper grinding cylinder to move up and down reciprocally.

[0008] Preferably, the upper grinding cylinder is the second grinding cylinder, and the lower grinding cylinder is the first grinding cylinder; both the top of the second grinding cylinder and the first grinding cylinder are provided with an upward conical protrusion; the radius of the bottom end face of the second grinding cylinder is greater than the maximum radius of the top end face of the first grinding cylinder.

[0009] Preferably, the first grinding cylinder is coaxially fixedly connected to the second rotating shaft, and the second rotating shaft passes through the first grinding cylinder; the second grinding cylinder is coaxially fixedly connected to the third rotating shaft, and the third rotating shaft passes through the second grinding cylinder; the bottom end of the second rotating shaft is rotatably connected to the chemical raw material crushing box, and is simultaneously driven by a linkage mechanism and a power mechanism; the bottom end of the third rotating shaft is driven by a connector to the top end of the second rotating shaft, and the top end of the third rotating shaft is driven by a drive component inside the grinding chamber.

[0010] Preferably, the power mechanism includes a motor and two gears; the motor is fixedly mounted on the chemical raw material crushing box, and the output shaft of the motor is coaxially and fixedly connected to one of the crushing rollers; both gears are rotatably mounted on the chemical raw material crushing box, and the two gears mesh and are each coaxially and fixedly connected to a crushing roller.

[0011] Preferably, the linkage mechanism includes a first rotating shaft, a transmission shaft, a first linkage component, and a second linkage component; the first rotating shaft is coaxially and fixedly connected to one of the gears, and the transmission shaft is rotatably installed inside the chemical raw material crushing box; the first rotating shaft and the transmission shaft are driven by the first linkage component, and the transmission shaft and the second rotating shaft are driven by the second linkage component.

[0012] Preferably, the first linkage component includes a first pulley, a second pulley, and a belt; the first pulley is fixedly sleeved on the first rotating shaft, and the second pulley is fixedly sleeved on the transmission shaft; both the first pulley and the second pulley are drivenly sleeved inside the belt.

[0013] Preferably, the second linkage component includes a worm gear and a worm; the worm is coaxially and fixedly connected to the transmission shaft, and the worm gear is fixedly sleeved on the bottom end of the second rotating shaft; the worm gear and the worm are meshed together.

[0014] Preferably, the connecting member includes a slide rod and a transmission groove; the slide rod is fixedly connected to the bottom end of the third rotating shaft, and the transmission groove is formed at the top end of the second rotating shaft; the slide rod and the transmission groove are inserted into each other for transmission.

[0015] Preferably, the driving component includes an annular groove and a transversely placed sliding shaft; the sliding shaft passes through the top end of the third rotating shaft radially and is fixedly connected to the third rotating shaft; the annular groove is formed on the inner wall of the chemical raw material crushing box along the circumference of the third rotating shaft, and both axial ends of the sliding shaft are slidably disposed in the annular groove; the annular groove is wavy along the circumference of the third rotating shaft.

[0016] Preferably, multiple spiral grinding grooves are provided on the inner wall of the chemical raw material crushing box and on the curved sidewalls of the first grinding cylinder and the second grinding cylinder, which are evenly distributed circumferentially along the second rotation axis; the multiple spiral grinding grooves on the curved sidewalls of the first grinding cylinder and the second grinding cylinder correspond one-to-one with the multiple spiral grinding grooves on the inner wall of the chemical raw material crushing box.

[0017] The technical effects and advantages of this utility model are as follows: This utility model is equipped with a driving component to drive the upper grinding cylinder to move up and down. At the same time, the two grinding cylinders can rotate synchronously through the connecting component. Thus, during the rotation and grinding process, the upper grinding cylinder can crush the chemical raw materials through the squeezing force when moving up and down. The grinding method is diverse, which improves the grinding effect and grinding efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the interior of the chemical raw material crushing box of this utility model;

[0020] Figure 3 This is an enlarged schematic diagram of point A of this utility model;

[0021] Figure 4 This is a schematic diagram of the two grinding cylinders of this utility model;

[0022] Figure 5 This is a schematic diagram of the connector of this utility model.

[0023] In the diagram: 1. Chemical raw material crushing box; 2. Mounting base; 3. Motor; 4. First rotating shaft; 5. Crushing roller; 6. Gear; 7. First pulley; 8. Second pulley; 9. Belt; 10. Transmission shaft; 11. Fixed base; 12. Worm; 13. Worm wheel; 14. Second rotating shaft; 15. Transmission groove; 16. Slide rod; 17. Third rotating shaft; 18. First grinding cylinder; 19. Second grinding cylinder; 20. Slide shaft; 21. Annular groove; 22. Scraper; 23. Discharge pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1 to 5 The disclosed chemical powder preparation pulverizing and grinding equipment includes a chemical raw material pulverizing box 1, which contains a pulverizing chamber and a grinding chamber. The pulverizing chamber is located above and communicates with the grinding chamber. A feed inlet is provided at the top of the chemical raw material pulverizing box 1, and the feed inlet communicates with the pulverizing chamber. A discharge pipe 23 is fixedly provided at the bottom of the chemical raw material pulverizing box 1, and the discharge pipe 23 communicates with the grinding chamber.

[0026] Two symmetrically arranged crushing rollers 5, one in front of the other, are horizontally placed inside the crushing chamber. The two crushing rollers 5 rotate relative to each other and are rotatably connected to the chemical raw material crushing box 1.

[0027] A power mechanism is installed on the chemical raw material crushing box 1, which drives two crushing rollers 5 to rotate. The power mechanism includes a motor 3 and two gears 6. A mounting base 2 is welded to the outer wall of the chemical raw material crushing box 1, and the motor 3 is bolted to the mounting base 2. The output shaft of the motor 3 passes through the chemical raw material crushing box 1 and is coaxially and fixedly connected to one of the crushing rollers 5. Both gears 6 are rotatably mounted on the outer wall of the chemical raw material crushing box 1, and the two gears 6 mesh with each other. The two gears 6 correspond one-to-one with the two crushing rollers 5, and each gear 6 is coaxially and fixedly connected to its corresponding crushing roller 5.

[0028] The grinding chamber is funnel-shaped, and two grinding cylinders are rotatably installed inside the grinding chamber. Each grinding cylinder is an inverted frustum and is matched with the grinding chamber. The two grinding cylinders are coaxially arranged, one above the other, and are connected by a connecting piece.

[0029] The upper grinding cylinder is the second grinding cylinder 19, and the lower grinding cylinder is the first grinding cylinder 18. Both the second grinding cylinder 19 and the first grinding cylinder 18 have upward-facing conical protrusions at their tops. The radius of the bottom end face of the second grinding cylinder 19 is larger than the maximum radius of the top end face of the first grinding cylinder 18.

[0030] The first grinding cylinder 18 is coaxially and fixedly connected to the vertically positioned second rotating shaft 14, which passes through the first grinding cylinder 18. The second grinding cylinder 19 is coaxially and fixedly connected to the vertically positioned third rotating shaft 17, which passes through the second grinding cylinder 19.

[0031] The bottom end of the second rotating shaft 14 is rotatably connected to the chemical raw material crushing box 1, and the bottom end of the third rotating shaft 17 is connected to the top end of the second rotating shaft 14 via a connecting component to drive the two grinding cylinders to rotate. The connecting component includes a slide rod 16 and a transmission groove 15. The slide rod 16 is fixedly connected to the bottom end of the third rotating shaft 17, and the transmission groove 15 is formed at the top end of the second rotating shaft 14. The slide rod 16 and the transmission groove 15 are inserted into each other for transmission. In this embodiment, the slide rod 16 is a splined shaft, and the transmission groove 15 is a keyway that matches the splined shaft.

[0032] The bottom end of the second rotating shaft 14 is driven by a linkage mechanism to rotate through a linkage mechanism with one of the gears 6 of the power mechanism. The linkage mechanism includes a first rotating shaft 4, a transmission shaft 10, a first linkage component, and a second linkage component. The first rotating shaft 4 is coaxially and fixedly connected to one of the gears 6. An equipment compartment is provided inside the chemical raw material crushing box 1, and the bottom end of the second rotating shaft 14 passes through the equipment compartment. A fixed seat 11 is provided inside the equipment compartment, and the transmission shaft 10 is rotatably mounted on the fixed seat 11.

[0033] The first rotating shaft 4 is connected to the transmission shaft 10 through a first linkage, and the transmission shaft 10 is connected to the second rotating shaft 14 through a second linkage.

[0034] The first linkage includes a first pulley 7, a second pulley 8, and a belt 9. The first pulley 7 is fixedly mounted on the first rotating shaft 4. The drive shaft 10 extends out of the chemical raw material crushing box 1, and the second pulley 8 is fixedly mounted on the drive shaft 10. Both the first pulley 7 and the second pulley 8 are driven and connected within the belt 9.

[0035] The second linkage component includes a worm gear 13 and a worm 12. The worm 12 is coaxially and fixedly connected to the drive shaft 10, and the worm gear 13 is fixedly sleeved on the bottom end of the second rotating shaft 14. The worm gear 13 and the worm 12 are meshed together.

[0036] A drive component is installed inside the grinding chamber. The top end of the third rotating shaft 17 is engaged with the drive component to drive the second grinding cylinder 19 to move up and down reciprocally. The drive component includes an annular groove 21 and a horizontally placed sliding shaft 20. The sliding shaft 20 passes through the top end of the third rotating shaft 17 radially and is fixedly connected to the third rotating shaft 17. The annular groove 21 is formed on the inner wall of the chemical raw material crushing box 1 along the circumference of the third rotating shaft 17 and communicates with the grinding chamber. Both axial ends of the sliding shaft 20 are slidably disposed within the annular groove 21. The annular groove 21 is wavy along the circumference of the third rotating shaft 17.

[0037] Multiple spiral grinding grooves are evenly distributed circumferentially along the second rotation axis 14 on the inner wall of the chemical raw material crushing box 1 and on the curved sidewalls of the first grinding cylinder 18 and the second grinding cylinder 19. Each spiral grinding groove on the curved sidewalls of the first grinding cylinder 18 and the second grinding cylinder 19 corresponds one-to-one with the spiral grinding grooves on the inner wall of the chemical raw material crushing box 1. The spiral directions of the spiral grinding grooves on the curved sidewalls of the first grinding cylinder 18 and the second grinding cylinder 19 are the same, and the spiral directions are opposite to those of the spiral grinding grooves on the inner wall of the chemical raw material crushing box 1.

[0038] A scraper 22 is slidably disposed on the inner wall of the bottom of the grinding chamber. The scraper 22 is arranged radially along the second rotating shaft 14 and is fixedly connected to the second rotating shaft 14, and is used to push the chemical powder into the discharge pipe 23. The discharge pipe 23 is inclined, and the upper opening of the discharge pipe 23 is disposed on the inner wall of the bottom of the grinding chamber.

[0039] Working principle: When preparing chemical powder, motor 3 is started. The output shaft of motor 3 drives the connected crushing roller 5 to rotate. This crushing roller 5 drives another crushing roller 5 to rotate through two meshing gears 6. At this time, the two crushing rollers 5 rotate relative to each other.

[0040] During this process, one of the gears 6 drives the first rotating shaft 4 to rotate, which in turn drives the first pulley 7 to rotate. The first pulley 7 drives the second pulley 8 to rotate via the belt 9, which in turn drives the transmission shaft 10 to rotate. The transmission shaft 10 drives the worm gear 12 to rotate, which in turn drives the worm wheel 13 to rotate. The worm wheel 13 drives the second rotating shaft 14 to rotate, which in turn drives the first grinding cylinder 18 to rotate. At the same time, the second rotating shaft 14 drives the slide bar 16 to rotate via the transmission groove 15.

[0041] When the slide rod 16 rotates, it drives the third rotating shaft 17 to rotate, which in turn drives the second grinding cylinder 19 to rotate. Simultaneously, the third rotating shaft 17 drives the slide shaft 20 to rotate. When the axial end of the slide shaft 20 slides within the annular groove 21, because the annular groove 21 is wavy along the circumference of the third rotating shaft 17, the slide shaft 20 intermittently slides up and down during rotation. At this time, the slide shaft 20 drives the third rotating shaft 17 to move up and down, the third rotating shaft 17 drives the second grinding cylinder 19 to move up and down, and simultaneously, the third rotating shaft 17 drives the slide rod 16 to slide up and down within the transmission groove 15.

[0042] Therefore, in summary, the second grinding cylinder 19 moves up and down while rotating.

[0043] Subsequently, chemical raw materials are injected into the crushing chamber of the chemical raw material crushing box 1 through the feed inlet, and the chemical raw materials are initially crushed by two crushing rollers 5. After the initial crushing is completed, the crushed chemical raw materials fall into the grinding chamber for grinding.

[0044] The grinding process is as follows: the crushed chemical raw materials fall through the conical protrusion at the top of the second grinding cylinder 19 into the grinding gap between the second grinding cylinder 19 and the chemical raw material crushing box 1. At this time, as the second grinding cylinder 19 rotates, it grinds the crushed material through the grinding groove. Simultaneously, as the second grinding cylinder 19 moves up and down, it compresses the crushed material, causing it to be crushed and ground.

[0045] After initial grinding by the second grinding cylinder 19, the crushed material falls into the grinding gap between the first grinding cylinder 18 and the chemical raw material crushing box 1. At this time, the first grinding cylinder 18 grinds the crushed material again through the grinding groove during its rotation.

[0046] After being ground twice, the chemical raw materials are turned into chemical powder, which then falls onto the inner wall of the bottom of the grinding chamber. Next, due to the scraper 22 sliding on the inner wall of the bottom of the grinding chamber, the second rotating shaft 14 drives the scraper 22 to push the chemical powder into the discharge pipe 23, and the chemical powder flows out of the chemical raw material crushing box 1 through the discharge pipe 23.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulverizing and grinding device for preparing chemical powders, comprising a chemical raw material pulverizing box (1), wherein the chemical raw material pulverizing box (1) is provided with a pulverizing chamber and a grinding chamber, the pulverizing chamber being located above the grinding chamber and communicating with the grinding chamber; characterized in that: Two symmetrically arranged and horizontally positioned crushing rollers (5) are rotatably installed in the crushing chamber, one in front of the other; the two crushing rollers (5) are driven by a power mechanism installed on the chemical raw material crushing box (1); the grinding chamber is funnel-shaped, and two grinding cylinders are rotatably installed in the grinding chamber, each grinding cylinder is an inverted frustum and is matched with the grinding chamber; the two grinding cylinders are coaxially arranged one above the other and are connected by a connecting piece; the lower grinding cylinder is connected to the power mechanism through a linkage mechanism to drive the two grinding cylinders to rotate; A drive unit is installed inside the grinding chamber. The drive unit is in drive engagement with the grinding cylinder located above, so that the grinding cylinder located above moves up and down reciprocally.

2. The pulverizing and grinding equipment for preparing chemical powders according to claim 1, characterized in that: The grinding cylinder located above is the second grinding cylinder (19), and the grinding cylinder located below is the first grinding cylinder (18); the top of both the second grinding cylinder (19) and the first grinding cylinder (18) is provided with a conical protrusion; the radius of the bottom end face of the second grinding cylinder (19) is greater than the maximum radius of the top end face of the first grinding cylinder (18).

3. The pulverizing and grinding equipment for preparing chemical powders according to claim 2, characterized in that: The first grinding cylinder (18) is coaxially fixedly connected to the second rotating shaft (14), and the second rotating shaft (14) passes through the first grinding cylinder (18); the second grinding cylinder (19) is coaxially fixedly connected to the third rotating shaft (17), and the third rotating shaft (17) passes through the second grinding cylinder (19); the bottom end of the second rotating shaft (14) is rotatably connected to the chemical raw material crushing box (1), and is simultaneously driven by the linkage mechanism and the power mechanism; the bottom end of the third rotating shaft (17) is driven by the top end of the second rotating shaft (14) through a connecting piece, and the top end of the third rotating shaft (17) is driven by the drive component inside the grinding chamber.

4. The pulverizing and grinding equipment for preparing chemical powders according to claim 3, characterized in that: The power mechanism includes a motor (3) and two gears (6); the motor (3) is fixedly installed on the chemical raw material crushing box (1), and the output shaft of the motor (3) is coaxially fixedly connected to one of the crushing rollers (5); both gears (6) are rotatably installed on the chemical raw material crushing box (1), and the two gears (6) mesh with each other; the two gears (6) correspond one-to-one with the two crushing rollers (5), and each gear (6) is coaxially fixedly connected to the corresponding crushing roller (5).

5. The pulverizing and grinding equipment for preparing chemical powders according to claim 4, characterized in that: The linkage mechanism includes a first rotating shaft (4), a transmission shaft (10), a first linkage component, and a second linkage component; the first rotating shaft (4) is coaxially and fixedly connected to one of the gears (6), and the transmission shaft (10) is rotatably installed in the chemical raw material crushing box (1); the first rotating shaft (4) and the transmission shaft (10) are driven by the first linkage component, and the transmission shaft (10) and the second rotating shaft (14) are driven by the second linkage component.

6. The pulverizing and grinding equipment for preparing chemical powders according to claim 5, characterized in that: The first linkage component includes a first pulley (7), a second pulley (8), and a belt (9); the first pulley (7) is fixedly sleeved on the first rotating shaft (4), and the second pulley (8) is fixedly sleeved on the transmission shaft (10); the first pulley (7) and the second pulley (8) are both driven and sleeved in the belt (9).

7. The pulverizing and grinding equipment for preparing chemical powders according to claim 5, characterized in that: The second linkage component includes a worm wheel (13) and a worm (12); the worm (12) is coaxially and fixedly connected to the transmission shaft (10), and the worm wheel (13) is fixedly sleeved on the bottom end of the second rotating shaft (14); the worm wheel (13) and the worm (12) mesh with each other.

8. The pulverizing and grinding equipment for preparing chemical powders according to claim 3, characterized in that: The connector includes a slide rod (16) and a transmission groove (15); the slide rod (16) is fixedly connected to the bottom end of the third rotating shaft (17), and the transmission groove (15) is opened at the top end of the second rotating shaft (14); the slide rod (16) and the transmission groove (15) are inserted and connected for transmission.

9. The pulverizing and grinding equipment for preparing chemical powders according to claim 3, characterized in that: The driving component includes an annular groove (21) and a transversely placed sliding shaft (20); the sliding shaft (20) passes through the top end of the third rotating shaft (17) radially and is fixedly connected to the third rotating shaft (17); the annular groove (21) is opened on the inner wall of the chemical raw material crushing box (1) along the circumference of the third rotating shaft (17), and both axial ends of the sliding shaft (20) are slidably disposed in the annular groove (21); the annular groove (21) is wavy along the circumference of the third rotating shaft (17).

10. The pulverizing and grinding equipment for preparing chemical powders according to claim 3, characterized in that: Multiple spiral grinding grooves are provided on the inner wall of the chemical raw material crushing box (1) and on the curved sidewalls of the first grinding cylinder (18) and the second grinding cylinder (19), which are evenly distributed around the second rotation axis (14). The multiple spiral grinding grooves on the curved sidewalls of the first grinding cylinder (18) and the second grinding cylinder (19) correspond one-to-one with the multiple spiral grinding grooves on the inner wall of the chemical raw material crushing box (1).

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