Chemical raw material stirring and mixing equipment

Abstract

The invention discloses stirring and mixing equipment for chemical raw materials. The stirring and mixing equipment comprises a stirring container, a stirring mechanism and a side wall scraping device, the stirring container is cylindrical, the stirring mechanism is arranged in the stirring container, the side wall material scraping device comprises a driving mechanism and two material scraping plates, the two material scraping plates are symmetrically arranged in the stirring container relative to the circle center of the stirring container, the material scraping plates are installed on the driving mechanism, and the driving mechanism is connected with the driving mechanism. The driving mechanism drives the scraping plate to rotate around the circle center of the stirring container, bristles are arranged on the side, close to the inner wall of the stirring container, of the scraping plate, and the bristles make contact with the inner wall of the stirring container and are used for scraping off materials attached to the inner side wall of the stirring container. According to the chemical raw material stirring and mixing equipment, a stirring dead zone can be avoided, caking is prevented from staying in the dead zone, it is guaranteed that the caking is crushed, uniform and efficient stirring and mixing are achieved, and the mixing efficiency and quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mixing and stirring devices, and in particular relates to chemical raw material stirring and mixing equipment. Background Art

[0002] In the production and processing of chemical raw materials, mixing is a crucial step that directly impacts product uniformity and final quality. Conventional mixing equipment suffers from several common problems in industrial applications. For example, when adding solid raw materials to liquid raw materials for mixing, direct addition is typically used. Upon contact with the liquid raw material, the outer layer of solid raw material quickly forms a viscous fluid that envelops the inner solid raw material, forming lumps and significantly reducing dissolution and mixing speed. Furthermore, during the mixing process, the stirring mechanism often fails to reach all areas within the container, resulting in so-called "dead zones" or "blended mixing areas." These dead zones are typically located near the inner wall of the mixing vessel, at the end of the stirring mechanism, or in the corners of the container. In these areas, the material flow is slow or even stagnant, preventing some materials from being fully mixed. Agglomerates formed in these "dead zones" cannot be broken up by the stirring mechanism for adequate mixing, leading to uneven mixing. This inadequate mixing can lead to localized overly high or low material concentrations, affecting the uniformity and efficiency of the reaction. Even worse, the material that is not fully mixed may adhere to the inner wall of the container, making it difficult to clean. When these deposits are removed during the subsequent material removal process, they will contaminate other well-mixed materials, resulting in a decrease in the overall quality of the mixed product.

[0003] Existing mixing equipment usually adopts a fixed angle and shape of the mixing mechanism. These designs are often unable to adapt to the needs of different material properties and cannot effectively solve the problem of mixing dead zones. Therefore, the development of a new type of chemical raw material mixing equipment can overcome the limitations of existing technology and achieve more efficient and more uniform mixing, which is of great significance to improving the quality and production efficiency of chemical products.

[0004] Some mixing equipment will install a device for scraping off materials on the edge of the mixing mechanism, but this approach can only scrape off materials in some areas, and it is easy to increase the stirring resistance and affect the stirring speed. The mixing of chemical raw materials has certain requirements for the stirring speed, which may affect the stirring quality. Summary of the Invention

[0005] In order to overcome the problems of the prior art, the present invention designs a chemical raw material stirring and mixing equipment, which can avoid stirring dead zones, effectively break up lumps, achieve uniform and efficient stirring and mixing, and improve mixing efficiency and quality.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a chemical raw material stirring and mixing equipment, including a stirring container, a stirring mechanism and a side wall scraping device; the stirring container is cylindrical, the stirring mechanism is arranged in the stirring container, and the side wall scraping device includes a driving mechanism and a scraping plate, there are two scraping plates, which are symmetrically arranged in the stirring container relative to the center of the stirring container, the scraping plates are installed on the driving mechanism, and the driving mechanism drives the scraping plates to rotate around the center of the stirring container. The scraping plate is provided with bristles on the side close to the inner wall of the stirring container, and the bristles are in contact with the inner wall of the stirring container to scrape off the material attached to the inner wall of the stirring container.

[0007] Furthermore, the driving mechanism includes an annular track, a movable base, a driving disc and a driving motor. The annular track is provided at the top of the stirring container, the annular track is concentric with the stirring container, the movable base is installed on the annular track, the movable base is provided with a motor and a driving wheel, which drives the movable base to move along the annular track, the driving disc is installed on the movable base, the driving disc is annular, and a gear ring is provided on the outer side of the driving disc. The driving motor is provided on both sides of the top of the stirring container, the driving motor shaft is connected to a gear through a transmission, the gear cooperates with the gear ring on the outer side of the driving disc, and the driving motor drives the driving disc to rotate along the annular track, and a mounting plate is provided on the top of the scraper plate, and the mounting plate is mounted on the inner side of the driving disc.

[0008] Furthermore, the stirring mechanism includes a driving shaft, stirring blades and a stirring motor, and a plurality of stirring blades are equidistantly installed on the driving shaft. The driving shaft is installed at the bottom of the stirring container through a rotating bearing, and the driving shaft passes through the bottom of the stirring container and is connected to the rotating shaft of the stirring motor. A rotating scraper is provided at the bottom of the stirring container, and the rotating scraper includes a bottom plate and a push plate. A rotating bearing is provided in the middle of the bottom plate, and the bottom plate is installed on the driving shaft through a rotating bearing. Vertical push plates are provided at both ends of the bottom plate. When the scraper plate rotates, it can push the push plate, thereby driving the bottom plate to rotate and scrape up the material at the bottom of the stirring container.

[0009] Furthermore, it also includes a lifting filter and a lifting drive mechanism, the lifting filter includes a circular frame and a filter plate, the scraper plate is provided with a lifting track on the side away from the inner wall of the mixing container, the center of the circular frame is provided with a filter plate, the center of the filter plate is provided with a through hole for the drive shaft to pass through, the two ends of the circular frame are provided with grooves, the scraper plate is embedded in the groove, the bottom of the groove is provided with a slider, the slider cooperates with the lifting track, the circular frame can be lifted and lowered along the lifting track under the drive of the lifting drive mechanism, each of the stirring blades is provided with a lifting filter, and the spacing between each lifting filter is equal, each lifting filter is connected by a distance rod, the length of the distance rod is equal to the spacing between the two stirring blades. Lifting the lumps close to the stirring blades, the stirring blades break the lumps, improving the stirring and mixing efficiency, and also promoting the up and down flow of materials, improving the stirring and mixing effect, and improving product quality.

[0010] Furthermore, the mesh of the filter plate of the lifting filter with a lower installation height is finer. The lifting filter lifts up large lumps of material, which are then crushed and can pass through the mesh and be held by the lifting filter with a finer mesh below.

[0011] Furthermore, a dust cover is provided on the top of the stirring container, a feeding pipe is provided on the top of the dust cover, and the dust cover is installed above the driving disk and rotates with the driving disk.

[0012] Furthermore, the lifting drive mechanism includes a threaded telescopic rod and a connecting rod, the threaded telescopic rod is installed above the dust cover, a top plate is installed on the top of the push rod of the threaded telescopic rod, the connecting rod is connected to the bottom of the top plate, and the connecting rod passes through the dust cover to connect to the lifting filter located at the top.

[0013] Furthermore, a material taking pipe is provided at the bottom of the mixing container, the material taking pipe is provided with a screw conveyor, and a valve is provided at the end of the material taking pipe, so that the mixed raw materials can be quickly taken out when materials are needed.

[0014] The beneficial effects of the chemical raw material stirring and mixing equipment of the present invention are as follows: efficient mixing, the design of the stirring mechanism and the side wall scraping device can ensure that the materials are fully mixed in the stirring container, thereby improving the mixing efficiency; a lifting filter is provided, which can lift the lumps close to the stirring blades to ensure that the lumps are broken and the mixing efficiency is improved; comprehensive scraping, the design of the side wall scraping device can scrape off the materials attached to the inner wall of the stirring container, reduce material waste, and ensure uniform distribution of the materials; bottom material cleaning, the design of the rotating scraper can clean the materials at the bottom of the stirring container, avoid material deposition, and improve material utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a cross-sectional view of a chemical raw material stirring and mixing device according to the present invention.

[0016] Figure 2 This is a structural schematic diagram of a chemical raw material stirring and mixing device of the present invention.

[0017] Figure 3 The present invention is a structural schematic diagram of a lifting filter screen of a chemical raw material stirring and mixing equipment.

[0018] Among them, 1-stirring container, 11-dust cover, 111-feeding pipe, 12-feeding pipe, 121-screw conveyor, 2-stirring mechanism, 21-drive shaft, 22-stirring blade, 23-stirring motor, 3-side wall scraper device, 31-drive mechanism, 311-annular track, 312-movable base, 313-drive disk, 314-drive motor, 32-scraper plate, 321-mounting plate, 322-lifting track, 4-rotating scraper, 41-bottom plate, 42-push plate, 5-lifting filter, 51-circular frame, 511-groove, 512-slider, 52-filter plate, 6-lifting drive mechanism, 61-threaded telescopic rod, 611-top plate, 62-connecting rod, 7-fixed distance rod. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1-3 As shown, the present invention is a chemical raw material stirring and mixing equipment, including a stirring container 1, a stirring mechanism 2 and a side wall scraper device 3; the stirring container 1 is cylindrical, the stirring mechanism 2 is provided in the stirring container 1, the side wall scraper device 3 includes a driving mechanism 31 and a scraper plate 32, there are two scraper plates 32, which are symmetrically arranged in the stirring container 1 relative to the center of the stirring container 1, the scraper plates 32 are installed on the driving mechanism 31, and the driving mechanism 31 drives the scraper plates 32 to rotate around the center of the stirring container 1. The scraper plate 32 is provided with bristles on the side close to the inner wall of the stirring container 1, and the bristles are in contact with the inner wall of the stirring container 1 to scrape off the material attached to the inner wall of the stirring container 1.

[0021] Furthermore, the driving mechanism 31 includes an annular track 311, a movable base 312, a driving disc 313 and a driving motor 314. The annular track 311 is provided at the top of the stirring container 1, and the annular track 311 is concentric with the stirring container 1. The movable base 312 is installed on the annular track 311. The movable base 312 is provided with a motor and a driving wheel, which drives the movable base 312 to move along the annular track 311. The driving disc 313 is installed on the movable base 312. The driving disc 313 is annular, and a gear ring is provided on the outer side of the driving disc 313. The driving motor 314 is provided on both sides of the top of the stirring container 1. The rotating shaft of the driving motor 314 is connected to a gear through a transmission, and the gear cooperates with the gear ring on the outer side of the driving disc 313. The driving motor 314 drives the driving disc 313 to rotate along the annular track 311. The top of the scraper plate 32 is provided with a mounting plate 321, and the mounting plate 321 is mounted on the inner side of the driving disc 313.

[0022] Furthermore, the stirring mechanism 2 includes a drive shaft 21, a stirring blade 22 and a stirring motor 23. Several stirring blades 22 are equidistantly installed on the drive shaft 21. The drive shaft 21 is installed at the bottom of the stirring container 1 through a rotating bearing. The drive shaft 21 passes through the bottom of the stirring container 1 and is connected to the rotating shaft of the stirring motor 23. A rotating scraper 4 is provided at the bottom of the stirring container 1. The rotating scraper 4 includes a bottom plate 41 and a push plate 42. A rotating bearing is provided in the middle of the bottom plate 41. The bottom plate 41 is installed on the drive shaft 21 through a rotating bearing. Vertical push plates 42 are provided at both ends of the bottom plate 41. When the scraper plate 32 rotates, it can push the push plate 42, driving the bottom plate 41 to rotate and scrape up the material at the bottom of the stirring container 1.

[0023] Furthermore, it also includes a lifting filter 5 and a lifting drive mechanism 6, the lifting filter 5 includes a circular frame 51 and a filter plate 52, the scraper plate 32 is provided with a lifting track 322 on the side away from the inner wall of the mixing container 1, the center of the circular frame 51 is provided with a filter plate 52, the center of the filter plate 52 is provided with a through hole for the drive shaft 21 to pass through, grooves 511 are provided at both ends of the circular frame 51, the scraper plate 32 is embedded in the groove 511, and a slider 512 is provided at the bottom of the groove 511, and the slider 512 cooperates with the lifting track 322. The circular frame 51 can be lifted and lowered along the lifting track 322 under the drive of the lifting drive mechanism 6, and the lifting filter 5 is provided under each of the stirring blades 22, and the spacing between each of the lifting filter screens 5 is equal. Each of the lifting filter screens 5 is connected by a distance rod 7, and the length of the distance rod 7 is equal to the spacing between the two stirring blades 22. When the lifting filter 5 rises, it lifts the agglomerates close to the stirring blades 22, so that the stirring blades 22 break up the agglomerates, thereby improving the stirring and mixing efficiency, and also promoting the upward and downward flow of materials, thereby improving the stirring and mixing effect and improving the product quality.

[0024] Furthermore, the mesh of the filter plate 52 of the lower installation height of the lifting filter 5 is finer. The lifting filter 5 lifts up large pieces of material agglomerates, which can pass through the mesh after being crushed and are held by the lower lifting filter 5 with finer mesh.

[0025] Furthermore, a dust cover 11 is provided on the top of the stirring container 1 , a feeding pipe 111 is provided on the top of the dust cover 11 , and the dust cover 11 is installed above the driving disk 313 and rotates with the driving disk 313 .

[0026] Furthermore, the lifting drive mechanism 6 includes a threaded telescopic rod 61 and a connecting rod 62. The threaded telescopic rod 61 is installed above the dust cover 11. A top plate 611 is installed on the top of the push rod of the threaded telescopic rod 61. The connecting rod 62 is connected to the bottom of the top plate 611. The connecting rod 62 passes through the dust cover 11 and is connected to the lifting filter 5 located at the top.

[0027] The threaded telescopic rod 61 is a mechanical device that realizes the telescopic function through thread transmission. The threaded telescopic rod 61 has a built-in motor, a rod body and a sleeve. The rod body is the push rod of the threaded telescopic rod 61. The rod body has an external thread and the sleeve has an internal thread. The motor drives the sleeve to rotate. When the rod body rotates relative to the sleeve, the rod body extends or retracts along the axial direction due to the action of the thread. The threaded telescopic rod 61 is installed on the top of the dust cover 11. After starting the stirring, the threaded telescopic rod 61 is started at a certain time interval. The threaded telescopic rod 61 pushes the top plate 611 upward, and the top plate 611 drives the top plate 611 at the top through the connecting rod 62. The lifting filter 5 is raised, and the distance rods 7 are provided between the lifting filter screens 5. All the lifting filter screens 5 are raised synchronously, and the material agglomerates that cannot pass through the filter plate 52 are lifted upward. The threaded telescopic rod 61 drives the lifting filter screen 5 to rise and stop when it is close to the stirring blade 22. The material agglomerates on the filter plate 52 continue to move upward under the action of inertia and are broken up by the rotating stirring blade 22, thereby increasing the contact area and improving the mixing and dissolution efficiency. When the threaded telescopic rod 61 retracts the push rod, it drives the lifting filter screen 5 to descend. During the rising and falling process, the material can be driven to flow vertically to avoid the material staying between the two stirring blades 22.

[0028] Furthermore, a material taking pipe 12 is provided at the bottom of the mixing container 1, and the material taking pipe 12 is provided with a screw conveyor 121. A valve is provided at the end of the material taking pipe 12. When material taking is required, the mixed raw materials can be quickly taken out.

[0029] The beneficial effects of the chemical raw material stirring and mixing equipment of the present invention are as follows: efficient mixing, the design of the stirring mechanism and the side wall scraping device can ensure that the materials are fully mixed in the stirring container, thereby improving the mixing efficiency; a lifting filter is provided, which can lift the lumps close to the stirring blades to ensure that the lumps are broken and the mixing efficiency is improved; comprehensive scraping, the design of the side wall scraping device can scrape off the materials attached to the inner wall of the stirring container, reduce material waste, and ensure uniform distribution of the materials; bottom material cleaning, the design of the rotating scraper can clean the materials at the bottom of the stirring container, avoid material deposition, and improve material utilization.

[0030] The present invention and its embodiments are described above. This description is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual content is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not depart from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical solution, which should all fall within the scope of protection of the present invention.

Claims

1. A chemical raw material stirring and mixing device, characterized in that: The invention comprises a stirring container (1), a stirring mechanism (2) and a side wall scraping device (3); the stirring container (1) is cylindrical, the stirring mechanism (2) is arranged in the stirring container (1), the side wall scraping device (3) comprises a driving mechanism (31) and a scraping plate (32), two scraping plates (32) are arranged in the stirring container (1) symmetrically with respect to the center of the stirring container (1), the scraping plates (32) are mounted on the driving mechanism (31), the driving mechanism (31) drives the scraping plates (32) to rotate around the center of the stirring container (1), and bristles are arranged on one side of the scraping plate (32) close to the inner wall of the stirring container (1), the bristles are in contact with the inner wall of the stirring container (1) and are used to scrape off materials attached to the inner wall of the stirring container (1).

2. A chemical raw material stirring and mixing device according to claim 1, characterized in that: The driving mechanism (31) comprises an annular track (311), a movable base (312), a driving disk (313) and a driving motor (314); the annular track (311) is arranged on the top of the stirring container (1); the annular track (311) is concentric with the stirring container (1); the movable base (312) is mounted on the annular track (311); a motor and a driving wheel are arranged on the movable base (312) to drive the movable base (312) to move along the annular track (311); the driving disk (313) is mounted on the movable base (314); 12), the driving disc (313) is annular, a gear ring is provided on the outer side of the driving disc (313), the driving motor (314) is provided on both sides of the top of the stirring container (1), the rotating shaft of the driving motor (314) is connected to a gear through a transmission, the gear cooperates with the gear ring on the outer side of the driving disc (313), the driving motor (314) drives the driving disc (313) to rotate along the annular track (311), and a mounting plate (321) is provided on the top of the scraper plate (32), and the mounting plate (321) is installed on the inner side of the driving disc (313).

3. A chemical raw material stirring and mixing device according to claim 2, characterized in that: The stirring mechanism (2) comprises a driving shaft (21), stirring blades (22) and a stirring motor (23). The driving shaft (21) is equidistantly mounted with a plurality of stirring blades (22). The driving shaft (21) is mounted on the bottom of the stirring container (1) via a rotating bearing. The driving shaft (21) passes through the bottom of the stirring container (1) and is connected to the rotating shaft of the stirring motor (23). A rotating scraper (4) is provided at the bottom of the stirring container (1). The rotating scraper (4) comprises a bottom plate (41) and a push plate (42). A rotating bearing is provided in the middle of the bottom plate (41). The bottom plate (41) is mounted on the driving shaft (21) via a rotating bearing. Vertical push plates (42) are provided at both ends of the bottom plate (41). When the scraper plate (32) rotates, it can push the push plate (42), thereby driving the bottom plate (41) to rotate and scrape up the material at the bottom of the stirring container (1).

4. A chemical raw material stirring and mixing device according to claim 3, characterized in that: The invention also comprises a lifting filter (5) and a lifting drive mechanism (6), wherein the lifting filter (5) comprises a circular frame (51) and a filter plate (52), a lifting track (322) is provided on the side of the scraper plate (32) away from the inner wall of the stirring container (1), a filter plate (52) is provided at the center of the circular frame (51), a through hole for the drive shaft (21) to pass through is provided at the center of the filter plate (52), grooves (511) are provided at both ends of the circular frame (51), the scraper plate (32) is embedded in the grooves (511), and the A slider (512) is provided at the bottom of the groove (511), and the slider (512) cooperates with the lifting track (322). The circular frame (51) can be lifted and lowered along the lifting track (322) driven by the lifting drive mechanism (6). A lifting filter (5) is provided below each stirring blade (22), and the spacing between each lifting filter (5) is equal. Each lifting filter (5) is connected by a spacing rod (7), and the length of the spacing rod (7) is equal to the spacing between two stirring blades (22).

5. A chemical raw material stirring and mixing device according to claim 4, characterized in that: The lower the installation height of the lifting filter (5), the finer the mesh of the filter plate (52).

6. A chemical raw material stirring and mixing device according to claim 4, characterized in that: A dust cover (11) is provided on the top of the stirring container (1), a feeding pipe (111) is provided on the top of the dust cover (11), and the dust cover (11) is installed above the driving disk (313) and rotates with the driving disk (313).

7. A chemical raw material stirring and mixing device according to claim 6, characterized in that: The lifting drive mechanism (6) comprises a threaded telescopic rod (61) and a connecting rod (62); the threaded telescopic rod (61) is installed above the dust cover (11); a top plate (611) is installed on the top of the push rod of the threaded telescopic rod (61); the connecting rod (62) is connected to the bottom of the top plate (611); and the connecting rod (62) passes through the dust cover (11) to connect to the lifting filter (5) located at the top.

8. The chemical raw material stirring and mixing equipment according to claim 1, characterized in that: A material taking pipe (12) is provided at the bottom of the stirring container (1), the material taking pipe (12) is provided with a screw conveyor (121), and a valve is provided at the end of the material taking pipe (12).

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