Mixture stirring device

Abstract

The utility model discloses a mixture stirring device which is characterized in that a stirring box is fixedly mounted in an annular frame, a mounting cover is mounted at the top of the stirring box, a feeding hole is formed in the top of the mounting cover, and a stirring main shaft is rotationally connected to the center of the bottom of the mounting cover through a bearing; four auxiliary stirring shafts are rotationally connected to the position, located outside the stirring main shaft, of the bottom of the mounting cover, the rotating directions of the four auxiliary stirring shafts are opposite to the rotating direction of the stirring main shaft, an annular rotating cylinder is rotationally connected into the mounting cover through a bearing, and supporting rods are fixedly connected to the end, located in the stirring box, of the annular rotating cylinder at equal intervals; according to the mixed material stirring device, the stirring main shaft and the four stirring auxiliary shafts are of a reverse rotating structure, so that the stirring main shaft and the stirring auxiliary shafts form a bidirectional shear flow field, the mixing uniformity is greatly improved, blades on the supporting rods forcibly crush road asphalt agglomerated materials in the rotating process, and the scraping plate is linked through the annular rotating cylinder, so that the mixing uniformity is greatly improved. The inner wall of the stirring box is synchronously cleaned in the stirring process, material accumulation is prevented, and manual cleaning frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology, specifically to a mixing device. Background Technology

[0002] Asphalt is a complex, dark brown mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives. It is a high-viscosity organic liquid, appearing liquid with a black surface, and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof, and corrosion-resistant organic cementing material. Asphalt can be mainly classified into three types: coal tar pitch, petroleum pitch, and natural asphalt. Coal tar pitch is a byproduct of coking. Petroleum pitch is the residue after crude oil distillation. Natural asphalt is stored underground, sometimes forming mineral layers or accumulating on the earth's surface. Asphalt is mainly used in the coatings, plastics, and rubber industries, as well as in road paving.

[0003] Traditional mixing devices typically employ single-shaft or multi-shaft mixing structures, relying on rotating blades or spiral belts to shear and tumble materials. Single-shaft mixing is prone to creating dead zones, causing materials to accumulate at the edges and corners of the mixing tank, resulting in uneven mixing. High-viscosity or wet materials are also prone to adhering to the inner wall of the mixing tank, affecting the mixing effect and increasing the difficulty of cleaning. To address this, we propose a mixing device for mixing materials. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device, wherein a mixing box is fixedly installed inside the annular frame, and a mounting cover is installed on the top of the mixing box. A feed inlet is provided on the top of the mounting cover. A mixing main shaft is rotatably connected to the bottom center of the mounting cover via a bearing. Four mixing auxiliary shafts are rotatably connected to the bottom of the mounting cover outside the mixing main shaft, and the rotation of the four mixing auxiliary shafts is opposite to that of the mixing main shaft. An annular rotating cylinder is rotatably connected inside the mounting cover via a bearing. Support rods are fixedly connected at equal intervals to one end of the annular rotating cylinder inside the mixing box, and a scraper is fixedly connected to one side of the support rod. The scraper contacts the inner wall of the mixing box.

[0006] Preferably, the top of the stirring spindle is fixedly connected to the drive gear through the mounting cover, the top of the mounting cover is equipped with a motor base, and a drive motor is fixedly installed inside the motor base. The output shaft end of the drive motor is fixedly connected to the central shaft of the drive gear. An internal gear ring is provided on the inner wall of the annular rotating drum located at the outer end of the mounting cover. A transmission gear is rotatably connected to the top of the mounting cover, and the transmission gear meshes with the drive gear and the internal gear ring respectively.

[0007] Preferably, three driven gears are equidistantly arranged on the top of the mounting cover outside the driving gear, and all three driven gears are meshed with the driving gear. The four stirring shafts inside the mixing tank pass through the mounting cover and are respectively fixed to the central shafts of the three driven gears and one transmission gear.

[0008] Preferably, an observation window is provided on the outer side of the mixing tank along the vertical direction.

[0009] Preferably, the bottom of the mixing tank is conical, and a discharge port is provided at the center of the bottom of the mixing tank, with an electrically controlled valve provided on the outside of the discharge port.

[0010] Preferably, the bottom of the ring frame is fixedly connected with four support legs at equal intervals, and the bottom of the four support legs is provided with support feet.

[0011] Preferably, the support rod has blades evenly spaced on the side away from the scraper.

[0012] Preferably, the bottom of the support foot is provided with a rubber pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model adopts a single motor-driven main shaft and four counter-rotating secondary shafts to form a bidirectional shear flow field between the mixing main shaft and the mixing secondary shafts, which greatly improves the mixing uniformity. The blades on the support rod forcefully break up the agglomerated asphalt material during rotation, which is suitable for mixing high-viscosity or easily agglomerated materials.

[0015] 2. This utility model uses a ring-shaped rotating drum linked with a scraper to simultaneously clean the inner wall of the mixing tank during the mixing process, preventing material accumulation, reducing the frequency of manual cleaning, and improving production efficiency. The integrated design of the scraper and blade enhances the shearing effect while scraping the material, realizing the coordinated operation of mixing and cleaning.

[0016] 3. This utility model adopts gear meshing transmission (driving gear, driven gear, internal gear ring), which only requires a single drive motor to realize the synchronous operation of the main shaft, the secondary shaft and the scraping mechanism, reducing energy consumption and equipment complexity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0020] In the diagram: 1. Annular frame; 2. Mixing tank; 3. Mounting cover; 4. Feed inlet; 5. Observation window; 6. Discharge port; 7. Electrically controlled valve; 8. Mixing main shaft; 9. Drive gear; 10. Drive motor; 11. Driven gear; 12. Mixing secondary shaft; 13. Transmission gear; 14. Annular rotating drum; 15. Internal gear ring; 16. Support rod; 17. Scraper; 18. Blade; 19. Support leg; 20. Support foot. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a mixing device for mixing materials, wherein a mixing box 2 is fixedly installed inside a ring frame 1, and a mounting cover 3 is installed on the top of the mixing box 2. A feed inlet 4 is provided on the top of the mounting cover 3. A mixing main shaft 8 is rotatably connected to the bottom center of the mounting cover 3 through a bearing. Four mixing auxiliary shafts 12 are rotatably connected to the bottom of the mounting cover 3 outside the mixing main shaft 8, and the rotation direction of the four mixing auxiliary shafts 12 is opposite to that of the mixing main shaft 8.

[0023] It should be noted that the four auxiliary stirring shafts 12 rotate in the opposite direction to the main stirring shaft 8 located at the center, so that the main stirring shaft 8 and the auxiliary stirring shafts 12 form a bidirectional shear flow field during stirring, which can greatly improve the mixing uniformity.

[0024] An annular rotating drum 14 is rotatably connected to the inside of the mounting cover 3 via a bearing. Support rods 16 are fixed at equal intervals at one end of the annular rotating drum 14 located inside the mixing tank 2, and a scraper 17 is fixed to one side of the support rods 16. The scraper 17 is in contact with the inner wall of the mixing tank 2.

[0025] It should be noted that during the rotation of the annular drum 14, it can drive the four support rods 16 to rotate. The scrapers 17 on the four support rods 16 can scrape off the material on the inner wall of the mixing tank 2, preventing material accumulation and avoiding subsequent cleaning troubles.

[0026] Please see Figure 2The top of the stirring shaft 8 passes through the mounting cover 3 and is fixedly connected to the drive gear 9. The top of the mounting cover 3 is equipped with a motor base, and the drive motor 10 is fixedly installed inside the motor base. The output shaft end of the drive motor 10 is fixedly connected to the central shaft of the drive gear 9. The inner wall of the annular rotating drum 14 located at the outer end of the mounting cover 3 is provided with an internal gear ring 15. The top of the mounting cover 3 is rotatably connected to a transmission gear 13, and the transmission gear 13 is meshed with the drive gear 9 and the internal gear ring 15 respectively.

[0027] It should be noted that the device is equipped with a control system. The drive motor 10 can drive the drive gear 9 to rotate, which in turn drives the stirring shaft 8 to rotate, mixing the materials inside the mixing tank 2. The rotation of the drive gear 9 drives the three driven gears 11 and one transmission gear 13 to rotate. During the rotation of the transmission gear 13, the annular drum 14 rotates, and the rotation of the annular drum 14 drives the four support rods 16 inside the mixing tank 2 to rotate.

[0028] Please see Figure 2 The top of the mounting cover 3 is provided with three driven gears 11 at equal intervals on the outside of the driving gear 9, and all three driven gears 11 are meshed with the driving gear 9. The four mixing sub-shafts 12 inside the mixing box 2 pass through the mounting cover 3 and are fixedly connected to the central shafts of the three driven gears 11 and one transmission gear 13 respectively.

[0029] It should be noted that, in use, the mounting cover 3 is installed on the mixing tank 2, and the components mounted on the mounting cover 3 are located inside the mixing tank 2. The asphalt raw material to be mixed is fed into the mixing tank 2 through the feed inlet 4. The device is equipped with a control system, and the drive motor 10 is a speed-regulating motor. The drive motor 10 drives the drive gear 9 to rotate, which in turn drives the mixing shaft 8 to rotate, mixing the materials inside the mixing tank 2. The rotation of the drive gear 9 drives three driven gears 11 and one transmission gear 13 to rotate. The three driven gears 11 and the transmission gear 13 rotate in the opposite direction to the rotation of the drive gear 9, causing the four agitators inside the mixing tank 2 to rotate. The mixing shaft 12 rotates in the opposite direction to the mixing main shaft 8, ensuring that the raw materials inside the mixing tank 2 are thoroughly mixed. During the rotation of the transmission gear 13, the annular drum 14 rotates, which in turn drives the four support rods 16 inside the mixing tank 2 to rotate. This causes the scrapers 17 on the support rods 16 to scrape the material from the inner wall of the mixing tank 2, preventing the material from adhering to the inner wall. At the same time, the rotation of the support rods 16 drives the multiple blades 18 on them to rotate circumferentially, which forcefully shear the agglomerated particles inside the mixing tank 2, making the material more thoroughly mixed. After the mixing is completed, the electric control valve 7 is opened, allowing the material to be discharged and collected through the discharge port 6.

[0030] Please see Figure 1An observation window 5 is provided on the outer side of the mixing tank 2 along the vertical direction.

[0031] It should be noted that the setting of observation window 5 facilitates real-time monitoring of the mixed state and improves the ease of operation.

[0032] Please see Figure 3 The bottom of the mixing tank 2 is conical, and a discharge port 6 is provided at the center of the bottom of the mixing tank 2. An electric control valve 7 is provided on the outside of the discharge port 6.

[0033] It should be noted that the design of the conical bottom mixing tank 2 and the discharge port 6 with the electric control valve 7 makes the unloading more thorough.

[0034] Please see Figure 1 The bottom of the ring frame 1 is fixed with four support legs 19 at equal intervals, and the bottom of the four support legs 19 is provided with support feet 20.

[0035] It should be noted that the cooperation between the support foot 20 and the support leg 19 provides stable support for the mixing tank 2.

[0036] Please see Figure 2 Blades 18 are equidistantly arranged on the side of the support rod 16 away from the scraper 17.

[0037] It should be noted that the blades 18 on the support rod 16 forcibly break up the agglomerated materials during rotation, and the scraper 17 simultaneously cleans the inner wall of the mixing tank 2 during the mixing process to prevent material accumulation, reduce the frequency of manual cleaning, and improve production efficiency.

[0038] Please see Figure 1 The bottom of the support foot 20 is equipped with a rubber pad.

[0039] It should be noted that the rubber pads increase the friction between the support feet 20 and the ground, making the device more stable.

[0040] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for mixing a batch of material, the apparatus comprising: A mixing tank (2) is fixedly installed inside the ring frame (1), and a mounting cover (3) is installed on the top of the mixing tank (2). A feed inlet (4) is provided on the top of the mounting cover (3). A mixing main shaft (8) is rotatably connected to the bottom center of the mounting cover (3) through a bearing. Four mixing auxiliary shafts (12) are rotatably connected to the bottom of the mounting cover (3) outside the mixing main shaft (8), and the rotation of the four mixing auxiliary shafts (12) is opposite to that of the mixing main shaft (8). An annular rotating cylinder (14) is rotatably connected inside the mounting cover (3) through a bearing. A support rod (16) is fixedly connected at equal intervals at one end of the annular rotating cylinder (14) inside the mixing tank (2), and a scraper (17) is fixedly connected to one side of the support rod (16). The scraper (17) is in contact with the inner wall of the mixing tank (2).

2. A mixing device according to claim 1, wherein: The top of the stirring spindle (8) is fixedly connected to the drive gear (9) through the mounting cover (3). The top of the mounting cover (3) is equipped with a motor base, and a drive motor (10) is fixedly installed inside the motor base. The output shaft end of the drive motor (10) is fixedly connected to the central shaft of the drive gear (9). The inner wall of the annular rotating drum (14) located at one end outside the mounting cover (3) is provided with an internal gear ring (15). The top of the mounting cover (3) is rotatably connected to a transmission gear (13), and the transmission gear (13) is meshed with the drive gear (9) and the internal gear ring (15) respectively.

3. A mixing device according to claim 2, wherein: The top of the mounting cover (3) is provided with three driven gears (11) equidistantly arranged outside the driving gear (9), and the three driven gears (11) are all meshed with the driving gear (9). The four stirring shafts (12) inside the stirring box (2) pass through the mounting cover (3) and are fixedly connected to the central shafts of the three driven gears (11) and a transmission gear (13).

4. The mixing device of claim 1, wherein: An observation window (5) is provided on the outside of the mixing tank (2) in the vertical direction.

5. The mixing device of claim 1, wherein: The bottom of the mixing tank (2) is conical, and a discharge port (6) is provided at the center of the bottom of the mixing tank (2). An electric control valve (7) is provided on the outside of the discharge port (6).

6. A mixing device according to claim 1, wherein: The bottom of the ring frame (1) is fixed with four support legs (19) at equal intervals, and the bottom of the four support legs (19) is provided with support feet (20).

7. A mixing device according to claim 2, wherein: The support rod (16) has blades (18) arranged at equal intervals on the side away from the scraper (17).

8. A mixing device according to claim 6, wherein: The bottom of the support foot (20) is provided with a rubber pad.

Images