Chemical raw material uniform pulverizing device

Abstract

The utility model relates to the technical field of chemical equipment discloses a kind of chemical raw material uniform pulverizing device, including pulverizing jar, the outside of pulverizing jar is equipped with outer fixed ring, the bottom of outer fixed ring is surrounded and is provided with multiple support rods, the bottom of pulverizing jar is equipped with discharge pipe, the sidewall of discharge pipe is equipped with quick-release assembly, it is used to the screening disc of discharge pipe inside installation is quickly fixed and disassembled, the sidewall of pulverizing jar is equipped with feed hopper, the top of pulverizing jar is equipped with pulverizing mechanism, and the pulverizing mechanism includes outer protective cover and driving motor.In the utility model, by multistage bevel gear drive stirring vane coaxial reverse rotation, the efficient uniform pulverization of raw material is realized, while screening disc is arranged in discharge pipe and cooperates quick-release assembly, it is convenient to quickly disassemble, improves screening efficiency, effectively guarantees equipment continuous stable operation.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a device for uniformly pulverizing chemical raw materials. Background Technology

[0002] Currently, the requirements for particle size and uniformity of distribution in chemical raw material preparation, reaction, and mixing processes are gradually increasing, especially in fine chemicals, pharmaceuticals, and new materials. Quality control of raw material crushing has become a crucial factor affecting product performance and stable production line operation. To achieve high-quality pretreatment, the industry generally relies on mechanical crushing equipment for the initial crushing and refinement of lumpy or crystalline chemical substances. However, with increasing process precision, simple crushing is no longer sufficient to meet the high standards of particle size consistency, purity, and dispersibility required in subsequent processing.

[0003] Regarding the aforementioned issues, most widely used chemical raw material crushing equipment currently employs a single-shaft structure driven by a motor. This structure rotates the crushing blades or hammers at high speed, causing the raw materials to be crushed through impact and shearing within the crushing chamber. These devices typically have a screen at the bottom of the crushing chamber for initial separation of particles reaching the target particle size. The screen is usually fixed by threads and requires the entire machine to be stopped and manually disassembled for cleaning.

[0004] Therefore, existing crushing devices suffer from several significant problems. First, the single-shaft crushing structure offers only one direction, resulting in uneven mixing and crushing. Material may accumulate within the chamber, leading to inconsistent particle size and affecting the precision of batching or reactions. Second, the complex screen structure's fixing method makes disassembly and assembly cumbersome, and cleaning and maintenance cycles long, impacting the equipment's ability to operate continuously. Furthermore, the lack of a rapid separation and screening mechanism causes some substandard particles to be discharged along with the finished product, reducing the purity of the crushed material.

[0005] To address the above problems, a chemical raw material uniform pulverization device is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a chemical raw material uniform pulverizing device, which aims to solve the problems of poor pulverization uniformity, cumbersome disassembly and assembly of the screening structure, and inability to achieve efficient continuous operation in the existing chemical raw material uniform pulverizing device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a chemical raw material uniform pulverizing device, comprising a pulverizing tank, an outer fixing ring sleeved on the outside of the pulverizing tank, a plurality of support rods arranged around the bottom of the outer fixing ring, a discharge pipe installed at the bottom of the pulverizing tank, a quick-release assembly provided on the side wall of the discharge pipe for quickly fixing and disassembling a screening disc installed inside the discharge pipe, a feed hopper installed on the side wall of the pulverizing tank, a pulverizing mechanism provided at the top of the pulverizing tank, the pulverizing mechanism comprising an outer protective cover and a drive motor, the outer protective cover being fixedly connected to the top of the pulverizing tank, the drive motor being fixedly connected to the top of the outer protective cover, and a pulverizing component provided inside the outer protective cover for pulverizing the added chemical raw materials.

[0008] As a further description of the above technical solution:

[0009] The crushing assembly includes a driving gear, a large gear, a lower driven gear, and an upper driven gear, with a stabilizing frame between them. An inner shaft is fixedly connected inside the upper driven gear, and an outer shaft is fixedly connected inside the lower driven gear. Multiple crushing impellers are installed on the outer sides of both the outer and inner shafts.

[0010] As a further description of the above technical solution:

[0011] The output end of the drive motor is fixedly connected inside the drive gear. The lower outer part of the drive gear meshes with the lower driven gear, the upper outer part of the drive gear meshes with the large gear, and the large gear meshes with the upper driven gear.

[0012] As a further description of the above technical solution:

[0013] The upper driven gear is located directly above the lower driven gear, and the inner shaft is rotatably connected inside the outer shaft.

[0014] As a further description of the above technical solution:

[0015] The quick-release assembly includes an outer casing, with a pin slidably connected inside the outer casing. A limit plate is fixedly connected to the middle of the pin, and a pressure spring is sleeved on the outer side of the pin. An L control plate is slidably connected to the top wall of the outer casing.

[0016] As a further description of the above technical solution:

[0017] The outer casing is fixedly connected to the side wall of the discharge pipe, and the pin passes through the side wall of the discharge pipe and is inserted into the inside of the screening disc.

[0018] As a further description of the above technical solution:

[0019] One end of the pressure spring is fixedly connected to the outside of the limiting plate, and the other end of the pressure spring is fixedly connected to the inner wall of the outer casing.

[0020] As a further description of the above technical solution:

[0021] The bottom of the L control board is provided with a curved part, and a return spring is provided between the top of the curved part and the inner top wall of the outer casing.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, multiple stirring blades are set inside the pulverizing tank, and the meshing design between multiple bevel gears allows the stirring blades to rotate in opposite directions on the same axis, ensuring uniform pulverization of the raw materials and avoiding affecting subsequent operations.

[0024] 2. In this utility model, a screening disc is set inside the discharge pipe and fixed with a quick-release assembly, which can realize the quick disassembly and installation of the screening disc and ensure the continuous operation of the equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a chemical raw material uniform pulverizing device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the outer protective cover of a chemical raw material uniform pulverizing device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the drive gear of a chemical raw material uniform pulverizing device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the screening disc of a chemical raw material uniform pulverizing device proposed in this utility model;

[0029] Figure 5 for Figure 4 A magnified view of A in the middle.

[0030] Legend:

[0031] 1. Crushing tank; 2. Outer fixing ring; 3. Support rod; 4. Feed hopper; 5. Crushing mechanism; 51. Outer protective cover; 52. Drive motor; 53. Crushing assembly; 531. Crushing impeller; 532. Inner shaft; 533. Outer shaft; 534. Large gear; 535. Lower driven gear; 536. Upper driven gear; 537. Drive gear; 6. Discharge pipe; 7. Quick release assembly; 701. Outer casing; 702. Pin; 703. Pressure spring; 704. Limit plate; 705. L control board; 706. Bending part; 707. Return spring; 8. Screening disc. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 5 This utility model provides an embodiment of a chemical raw material uniform pulverizing device, comprising a pulverizing tank 1, which is used for pretreatment and uniform pulverization of various solid or powdered chemical raw materials. An outer fixing ring 2 is fitted around the outside of the pulverizing tank 1, which helps improve the stability of the overall structure. Multiple support rods 3 are evenly distributed around its bottom, contacting the ground to enhance the device's vibration resistance and load-bearing capacity during operation. A discharge pipe 6 is installed at the bottom of the pulverizing tank 1, and a screening disc 8 is installed inside the discharge pipe 6 for particle size screening of the pulverized raw materials, ensuring uniform and fine output, and improving pulverization quality and subsequent processing efficiency. To facilitate equipment maintenance and replacement or cleaning of the screening disc 8, a quick-release assembly 7 is provided on the side wall of the discharge pipe 6, improving the efficiency of disassembling and assembling the screening disc 8 and ensuring long-term continuous operation of the equipment. A feed hopper 4 is provided on the side wall of the pulverizing tank 1 for convenient and continuous introduction of raw materials into the tank, effectively preventing leakage or dust during feeding. A pulverizing mechanism 5 is provided at the top of the pulverizing tank 1, which greatly improves the fullness of mixing and uniformity of raw materials in the pulverizing chamber, avoids problems such as raw material accumulation and clumping, and ensures the stability of pulverizing efficiency and effect.

[0034] Reference Figure 2 - Figure 3The crushing mechanism 5 includes an outer protective cover 51 and a drive motor 52. The outer protective cover 51 is made of high-strength metal material and is fixedly installed on the top of the crushing tank 1, serving to protect the internal transmission structure and crushing components. The drive motor 52 is installed on the top of the outer protective cover 51, and its output shaft is directly connected to the drive gear 537 in the crushing assembly 53 to achieve efficient transmission. The crushing assembly 53 is the core structure for achieving efficient crushing of raw materials. It is equipped with a multi-stage gear transmission system including the drive gear 537, the large gear 534, the lower driven gear 535, and the upper driven gear 536. These gears are supported and fixed to each other by a stabilizer to ensure that the position does not shift and the meshing accuracy is high during operation. The drive gear 537 is driven to rotate by the drive motor 52. Its lower outer part meshes with the lower driven gear 535, and its upper outer part meshes with the large gear 534. Through the above two-stage transmission, the rotational force is effectively distributed to multiple directions, thereby improving the overall crushing efficiency. The large gear 534 meshes with the upper driven gear 536 to form a third-stage transmission, further enhancing the linkage effect and reverse rotation capability of the crushing impeller 531. To achieve multi-stage crushing and mixing, a coaxial structure is formed between the inner shaft 532 inside the upper driven gear 536 and the outer shaft 533 inside the lower driven gear 535. The inner shaft 532 is rotatably connected to the outer shaft 533 through a bearing assembly, enabling the two to rotate in a relatively independent yet synchronously driven state. Multiple uniformly arranged crushing impellers 531 are set on the outer sides of both impellers. These impellers are distributed along the upper and lower dual shafts and driven by rotational forces in different directions, forming a pinch-type and staggered crushing effect on the raw materials, which can effectively break up agglomerates and accelerate the fine-graining process.

[0035] Reference Figure 4 - Figure 5The quick-release assembly 7 is used for the rapid installation and removal of the screening disc 8 inside the discharge pipe 6, improving the equipment's maintenance efficiency and continuous operation capability. This quick-release assembly 7 mainly includes an outer casing 701 mounted on the side wall of the discharge pipe 6. The outer casing 701 is a closed shell structure made of corrosion-resistant alloy material, effectively resisting corrosion or particle impact generated during the crushing process. Inside the outer casing 701, a horizontally slidable pin 702 is mounted. The pin 702 is a cylindrical metal structure, its front end of which can pass through the side wall of the discharge pipe 6 and insert into the fixing hole of the screening disc 8, thereby achieving stable positioning of the screening disc 8. A limiting plate 704 is fixedly connected to the middle of the pin 702. The limiting plate 704 is spaced and cooperates with the inner wall of the outer casing 701 to limit the movement of the pin 702 to avoid over-insertion or loosening, ensuring safe use. A pressure spring 703 is fitted around the outer side of the pin 702. One end of the pressure spring 703 is fixedly connected to the outer side of the limiting plate 704, and the other end is fixed between the pin and the inner wall of the outer casing 701. The spring is always in a compressed state during operation, providing continuous rebound force to the pin 702, thereby achieving an automatic locking function when not in operation. To facilitate quick release and locking, an L control plate 705 is slidably connected to the top wall of the outer casing 701. The bottom of the L control plate 705 has a downwardly bent portion 706. A return spring 707 is provided between the top of the bent portion 706 and the inner top wall of the outer casing 701. The return spring 707 quickly resets the L control plate 705 after the control plate is released. Thus, when the pin 702 is disassembled, the bent portion 706 abuts against one end of the limiting plate 704, so the user does not need to pull the pin 702 continuously, or when the pin 702 is fixed, the bent portion 706 stabilizes the fixed state of the pin 702.

[0036] Working principle: Chemical raw materials are fed into the crushing tank 1 through the feed hopper 4. A crushing mechanism 5 is installed on the top of the crushing tank 1. The crushing mechanism 5 is driven by a drive motor 52 to rotate the drive gear 537. The lower outer part of the drive gear 537 meshes with the lower driven gear 535, and the upper outer part meshes with the large gear 534. The large gear 534 further meshes with the upper driven gear 536, forming a multi-stage gear transmission structure. An inner shaft 532 is fixedly connected inside the upper driven gear 536, and an outer shaft 533 is fixedly connected inside the lower driven gear 535. The inner shaft 532 is rotatably connected to the inside of the outer shaft 533. Multiple crushing impellers 531 are installed on the outer sides of both shafts. Under the drive of gear transmission, the inner shaft 532 and the outer shaft 533 rotate in opposite directions, driving the crushing impellers 531 to perform bidirectional shearing and stirring in the crushing chamber, thereby completing the uniform crushing of the raw materials. The crushed material sinks to the bottom of the crushing tank 1 under gravity and is discharged through the discharge pipe 6. A screening disc 8 is installed in the discharge pipe 6 for preliminary screening of the crushed material. The screening disc 8 is fixed by a pin 702 in the quick-release assembly 7 that passes through the side wall of the discharge pipe 6. The pin 702 is limited by the outer box 701 and is provided with pre-tightening force by the pressure spring 703. Its control is realized by the L control plate 705 on the top. A return spring 707 is provided between the bent part 706 of the L control plate 705 and the inner top wall of the outer box 701 to assist in the control and reset function of the pin 702.

[0037] 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 chemical raw material uniform pulverizing device, comprising a pulverizing tank (1), characterized in that: The outer side of the crushing tank (1) is fitted with an outer fixing ring (2), and the bottom of the outer fixing ring (2) is surrounded by multiple support rods (3). The bottom of the crushing tank (1) is equipped with a discharge pipe (6), and the side wall of the discharge pipe (6) is equipped with a quick-release assembly (7), which is used to quickly fix and disassemble the screening disc (8) installed inside the discharge pipe (6). The side wall of the crushing tank (1) is equipped with a feed hopper (4), and the top of the crushing tank (1) is equipped with a crushing mechanism (5). The crushing mechanism (5) includes an outer protective cover (51) and a drive motor (52). The outer protective cover (51) is fixedly connected to the top of the crushing tank (1), and the drive motor (52) is fixedly connected to the top of the outer protective cover (51). The inside of the outer protective cover (51) is equipped with a crushing component (53), which is used to crush the added chemical raw materials.

2. The chemical raw material uniform pulverizing device according to claim 1, characterized in that: The crushing assembly (53) includes a drive gear (537), a large gear (534), a lower driven gear (535), and an upper driven gear (536). A stabilizing frame is provided between the four. An inner shaft (532) is fixedly connected inside the upper driven gear (536), and an outer shaft (533) is fixedly connected inside the lower driven gear (535). Multiple crushing impellers (531) are installed on the outer sides of both the outer shaft (533) and the inner shaft (532).

3. The chemical raw material uniform pulverizing device according to claim 2, characterized in that: The output end of the drive motor (52) is fixedly connected inside the drive gear (537). The lower outer part of the drive gear (537) meshes with the lower driven gear (535), the upper outer part of the drive gear (537) meshes with the large gear (534), and the large gear (534) meshes with the upper driven gear (536).

4. The chemical raw material uniform pulverizing device according to claim 3, characterized in that: The upper driven gear (536) is located directly above the lower driven gear (535), and the inner shaft (532) is rotatably connected inside the outer shaft (533).

5. The chemical raw material uniform pulverizing device according to claim 1, characterized in that: The quick-release assembly (7) includes an outer box (701), a pin (702) is slidably connected inside the outer box (701), a limit plate (704) is fixedly connected to the middle of the pin (702), a pressure spring (703) is sleeved on the outside of the pin (702), and an L control plate (705) is slidably connected to the top wall of the outer box (701).

6. The chemical raw material uniform pulverizing device according to claim 5, characterized in that: The outer casing (701) is fixedly connected to the side wall of the discharge pipe (6), and the pin (702) passes through the side wall of the discharge pipe (6) and is inserted into the inside of the screening disc (8).

7. A chemical raw material uniform pulverizing device according to claim 5, characterized in that: One end of the pressure spring (703) is fixedly connected to the outside of the limiting plate (704), and the other end of the pressure spring (703) is fixedly connected to the inner wall of the outer box (701).

8. A chemical raw material uniform pulverizing device according to claim 5, characterized in that: The bottom of the L control panel (705) is provided with a curved part (706), and a return spring (707) is provided between the top of the curved part (706) and the inner top wall of the outer box (701).

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