Mixing device for silica gel production

Abstract

The utility model is suitable for the technical field of silica gel production, and provides a mixing device for silica gel production, which comprises a mixing box body, a stirring mechanism, a stirring mechanism, a feeding mechanism and a discharging mechanism, the device is characterized in that a stirring assembly is arranged in a stirring area between every two adjacent partition plates, a synchronous control assembly is further arranged on the multiple partition plates, and the synchronous control assembly is movably connected with the multiple stirring assemblies. According to the stirring device, the stirring assemblies are arranged in the multiple stirring areas correspondingly, the synchronous control assembly controls the multiple stirring assemblies to work synchronously, so that mixed materials in the multiple stirring areas are stirred synchronously, the mixed materials can be fully mixed and stirred, meanwhile, the stirring time is short, and the stirring efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of silica gel production, in particular to a mixing device for silica gel production. Background Art

[0002] Organic silica gel is an organosilicon compound, which refers to a compound containing Si-C bonds and at least one organic group directly connected to the silicon atom. During the current mixing process of silicone, the required auxiliary materials and additives are often added to the reactor at one time. The existing agitator has a limited stirring range and cannot mix the reactor evenly over a large area, resulting in poor mixing effect.

[0003] The Chinese utility model patent, with publication number CN218131261U, discloses a mixing device for silicone production, comprising a mixing silo with a feed inlet and a discharge inlet. The feed inlet is located at either end of the top of the silo, connected to a feed channel at its bottom, which extends downward. The discharge inlets are symmetrically located at the bottom of the silo. A first motor is mounted at the center of the top of the silo, with the power output of the first motor connected to a main rotating shaft. A carrier plate is fixedly connected to the outer circumference of the main rotating shaft. This device achieves a wider mixing coverage during the mixing process, improving the mixing effect, while also being able to scrape residue off the inner wall of the reactor.

[0004] However, the above device has the following technical problems when actually used:

[0005] 1. Although the above-mentioned device drives the carrier plate to rotate by the output end of the first motor and the stirring devices at both ends of the carrier plate can increase the stirring range, due to the large overall size of the mixing bin, the working cycle of the stirring device is long during actual operation, and the uniform mixing of the materials cannot be guaranteed in a short time. In addition, the mixing bin of the above-mentioned device cannot be partitioned, so actual processing takes too much time, which greatly delays work efficiency.

[0006] 2. In addition, during actual processing of the above-mentioned device, the stirring plate will drive the scraper to move horizontally between the middle and end of the carrier plate. When the stirring plate moves to a position close to the middle of the carrier plate, the scraper cannot contact the inner wall of the mixing bin, and the residue adhering to the inner wall of the mixing bin cannot be scraped off. In addition, when the scraper rotates around the rotating shaft, the contact with the inner wall of the mixing bin will cause the scraper and the inner wall of the mixing bin to collide, thereby causing damage to the scraper and affecting the service life of the scraper. Utility Model Content

[0007] The utility model provides a mixing device for silica gel production, aiming to solve the problem mentioned in the above background technology that although the above device increases the stirring range, due to the large internal space of the mixing bin, the processing time consumed by the material in the actual stirring process is long, and the above device cannot be divided into zones in the mixing bin, which will greatly affect the processing efficiency during actual processing. In addition, during actual processing, since the scraper constantly changes position following the stirring plate, when the scraper is away from the inner wall of the mixing bin, it cannot meet the requirements of scraping off the residue. At the same time, when the scraper contacts the inner wall of the mixing bin, the collision generated will reduce the service life of the scraper.

[0008] The utility model is implemented as follows: a mixing device for silica gel production comprises: a mixing box body, a mixing chamber is provided inside the mixing box body, and a top cover is detachably connected to the top wall of the mixing box body, the top cover is used to seal the mixing chamber, a lifting mechanism is movably connected to the side wall of the mixing box body, and is fixedly connected to the top cover, and the lifting mechanism is used to drive the top cover to rise and fall longitudinally, wherein a plurality of partitions are distributed at equal angles in the mixing chamber, the ends of the plurality of partitions are fixedly connected to each other, and the mixing chamber is divided into a plurality of stirring areas by the plurality of partitions, and the stirring mechanism comprises: a stirring component is provided in the stirring area between each two adjacent partitions, and a plurality of the partitions are also provided with a synchronous control component, the synchronous control component and the plurality of the stirring components are movably connected. The invention relates to a method for the mixing chamber to be mixed with the mixing material in a mixing manner, wherein the mixing chamber is provided with a plurality of mixing components, the mixing chamber being connected to the mixing chamber so that the mixing material can be mixed with the mixing material in a mixing manner. The mixing chamber is provided with a plurality of mixing components, the mixing chamber being connected to the mixing chamber so that the mixing material can be mixed with the mixing material in a mixing manner. The mixing chamber is provided with a plurality of mixing components, the mixing chamber being connected to the mixing chamber so that the mixing material can be mixed with the mixing material in a mixing manner. The mixing chamber is provided with a plurality of mixing components, the mixing chamber being connected to the mixing chamber so that the mixing material can be mixed with the mixing material in a mixing manner.

[0009] In addition, in this device, a scraper is provided on the end of each partition near the inner wall of the mixing chamber. When the output end of the second motor rotates, it will drive the supporting plate to rotate. The supporting plate is fixedly connected to the top of multiple partitions through multiple support rods. Therefore, when the supporting plate rotates, it will drive multiple partitions to rotate around the output end of the second motor, so that the scraper is used to scrape off the adhesions adhering to the inner wall of the mixing chamber. This scraping method can effectively avoid hard collision between the scraper and the inner wall of the mixing chamber, thereby avoiding damage to the scraper.

[0010] Preferably, the stirring assembly includes: an annular bracket, which is fixedly mounted on the top walls of the plurality of partitions, and a rotating shaft is rotatably connected to the annular bracket corresponding to each of the stirring areas, the rotating shaft is arranged upright, and a plurality of groups of stirring members are fixedly mounted on its outer wall at equal intervals along its height, each group of stirring members has a plurality of stirring rods fixedly connected to the outer wall of the rotating shaft at equal angles, and the stirring rods and the rotating shaft are distributed vertically; in this scheme, when the rotating shaft is driven by the synchronous control assembly to rotate, it will drive the plurality of groups of stirring members on its outer wall to rotate circumferentially around it, and the plurality of stirring members are used to stir the mixed material in the stirring area, so that the mixed material can be fully mixed.

[0011] Preferably, the synchronous control component includes: a support rod is upright and fixedly connected to the top wall of each of the partitions, and the top ends of the multiple support rods are horizontally fixedly connected to a carrying plate, and the bottom wall of the carrying plate is fixedly connected to a first motor, and a driving gear is fixedly installed on its output end, the top end of each of the rotating shafts extends above the annular bracket, and a driven gear is fixedly connected to its outer wall, and the driving gear and the multiple driven gears are meshed and connected; in this scheme, when the first motor is connected to an external power supply in this device, its output end rotates and controls the rotation of the driving gear, and the multiple driven gears meshed with the driving gear drive rod rotate synchronously, and each driven gear is fixedly installed on the top outer wall of the rotating shaft, so when the driven gear rotates, it will drive the rotating shaft fixed to it to rotate, and the rotating shaft then controls the rotation of multiple stirring members on its outer wall to achieve sufficient mixing and stirring of the mixed material.

[0012] Preferably, the lifting mechanism includes: a mounting bracket symmetrically fixed to the side wall of the mixing box, an electric push rod fixedly mounted on the bottom wall of the mounting bracket, and two mounting seats fixedly mounted on the top wall of the top cover corresponding to the two mounting brackets, and the output end of the electric push rod on each side is fixedly connected to the bottom wall of the mounting seat on the corresponding side; in this solution, when the output ends of the electric push rods on both sides of the device are synchronously extended to each other, the mounting seat will be pushed to rise and fall longitudinally in the direction away from the mounting bracket. Since the mounting seat is fixedly mounted on the top cover, when the mounting seat moves, it will drive The top cover is away from the mixing box and synchronously drives multiple partitions to move up, so that the multiple mixing areas separated by the multiple partitions are connected to each other, so that the mixed materials can be evenly filled in the mixing chamber when the mixed materials are added subsequently. As the output ends of the electric push rods on both sides shrink synchronously, the distance between the mounting seat and the mounting frame continues to shrink, and the top cover is again covered on the top of the mixing chamber to achieve the effect of sealing the top of the mixing chamber. At this time, the partition sinks into the mixing chamber again, and the bottom wall of the partition contacts the inner bottom wall of the mixing chamber, dividing the interior of the mixing chamber into multiple mixing areas.

[0013] Preferably, the scraper assembly includes: a second motor fixedly mounted on the top cover, the output end of the second motor is fixedly connected to the top wall of the supporting plate, and each of the partitions is provided with an insertion groove along its height on the end close to the inner wall of the mixing chamber, an insertion block is inserted in the insertion groove, and a scraper is fixedly connected to the end face of the insertion block close to the inner wall of the mixing chamber, and the scraper is attached to the inner wall of the mixing chamber; in this scheme, when the output end of the second motor rotates, it will drive the supporting plate fixed thereto to rotate, and the supporting plate is fixedly mounted above the multiple partitions by multiple support rods. Therefore, when the supporting plate rotates, it will drive the multiple partitions to rotate around the output end of the second motor, and the rotation of the partition drives the multiple scrapers to scrape the inner wall of the mixing chamber, so that the scrapers can scrape off the adhesions adhering to the inner wall of the mixing chamber.

[0014] Preferably, limiting grooves are further provided on the inner walls on both sides of the insertion groove, the limiting grooves and the insertion grooves are of the same height, limiting blocks are arranged in the limiting grooves, and the limiting blocks are fixedly installed on the side walls of the insertion block; in this scheme, by setting the limiting blocks and limiting grooves, the stability of the insertion block when installed in the insertion groove can be guaranteed, and the separation of the insertion block and the insertion groove can be avoided, thereby avoiding the situation where the scraper and the inner wall of the mixing chamber do not fit together, and ensuring that the scraper can stably scrape off the adhesions adhering to the inner wall of the mixing chamber when the partition rotates later.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the mixing device for silica gel production of the present invention:

[0016] 1. During the feeding process, this device uses a lifting mechanism to lift the top cover, so that the partition is separated from the mixing chamber, and then the mixed material is put into the mixing chamber. Then the lifting mechanism controls multiple partitions to sink, and the bottom wall of the partition contacts the bottom wall of the mixing chamber. The mixing chamber is divided into multiple smaller stirring areas by multiple partitions, and each stirring area is correspondingly provided with a stirring component. The synchronous control component controls the multiple stirring components to work synchronously, so that the mixed materials in the multiple stirring areas are stirred synchronously, thereby achieving sufficient mixing and stirring of the mixed materials. At the same time, the stirring time is short, which effectively improves the stirring efficiency.

[0017] 2. In this device, a scraper is provided on the end of each partition close to the inner wall of the mixing chamber. When the output end of the second motor rotates, it will drive the supporting plate to rotate. The supporting plate is fixedly connected to the top of multiple partitions through multiple support rods. Therefore, when the supporting plate rotates, it will drive multiple partitions to rotate around the output end of the second motor, so that the scraper is used to scrape off the adhesions adhering to the inner wall of the mixing chamber. This scraping method can effectively avoid hard collision between the scraper and the inner wall of the mixing chamber, and avoid damage to the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a front cross-sectional view of the utility model;

[0019] Figure 2 It is a top view of the local structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0021] Figure 4 For this utility model Figure 1 A magnified view of the structure at B in the middle;

[0022] In the picture:

[0023] 1. Mixing box; 11. Top cover;

[0024] 2. Lifting mechanism; 21. Mounting frame; 22. Electric push rod; 23. Mounting base;

[0025] 3. Partition; 31. Stirring area;

[0026] 4. Stirring mechanism; 41. Stirring assembly; 411. Ring bracket; 412. Rotating shaft; 413. Stirring rod; 42. Synchronous control assembly; 421. Support rod; 422. Carrying plate; 423. First motor; 424. Driving gear; 425. Driven gear;

[0027] 5. Wall scraping assembly; 51. Second motor; 52. Insertion slot; 521. Limiting slot; 53. Insert block; 531. Limiting block; 54. Scraper. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] See also Figure 1-4 The utility model provides a technical solution: a mixing device for silica gel production, comprising: a mixing box 1, a mixing chamber is provided inside the mixing box, and a top cover 11 is detachably connected to the top wall of the mixing box 1, the top cover 11 is used to seal the mixing chamber, a lifting mechanism 2, which is movably connected to the side wall of the mixing box 1 and fixedly connected to the top cover 11, and is used to drive the top cover 11 to rise and fall longitudinally through the lifting mechanism 2, wherein a plurality of partitions 3 are distributed at equal angles in the mixing chamber, and the ends of the plurality of partitions 3 are close to each other. They are fixedly connected to each other, and a plurality of partitions 3 are used to divide the mixing chamber into a plurality of stirring areas 31. The stirring mechanism 4 has: a stirring component 41 is provided in the stirring area 31 between each two adjacent partitions 3, and a synchronous control component 42 is also provided on the plurality of partitions 3. The synchronous control component 42 and the plurality of stirring components 41 are movably connected, and a scraping component 5 is detachably fixedly installed on the end of each partition 3 close to the inner wall of the mixing chamber, and the scraping component 5 is attached to the inner wall of the mixing chamber.

[0034] Specifically, in this device, a discharge pipe is fixedly installed on the bottom wall of the mixing box 1, one end of the discharge pipe passes through the bottom wall of the mixing box 1 and extends to the inside of the mixing chamber, and is connected to the inside of the mixing chamber, and the other end is connected to an external collection and storage device. A control valve can also be fixedly installed on the discharge pipe, and the control valve is electrically connected to an external PLC controller. When this device completes stirring the mixed material, the PLC controller can send an electrical signal to the control valve. At this time, the control valve opens, and the material inside the mixing chamber is discharged into the external collection and storage device along the discharge pipe, so that the staff can subsequently process the mixed material.

[0035] Furthermore, the stirring assembly 41 includes: an annular bracket 411, which is fixedly mounted on the top walls of multiple partitions 3, and the annular bracket 411 corresponding to each stirring area 31 is rotatably connected to a rotating shaft 412, the rotating shaft 412 is arranged upright, and a plurality of groups of stirring elements are fixedly mounted on its outer wall at equal intervals along its height, each group of stirring elements has a plurality of stirring rods 413 fixedly connected to the outer wall of the rotating shaft 412 at equal angles, and the stirring rods 413 and the rotating shaft 412 are distributed vertically.

[0036] Specifically, in this device, a group of stirring components 41 is provided in each stirring area 31. In other schemes, an appropriate number of stirring components 41 can be rotated according to the size of the stirring area 31. For example, when the stirring area 31 is large in size, a rotating shaft can be rotatably connected to the position of the annular bracket 411 corresponding to the stirring area 31. The top end of the rotating shaft passes through the top of the annular bracket 411 and is fixedly connected to a driven gear 425. The bottom end of the rotating shaft is fixedly connected to a mounting rod perpendicularly. The two ends of the mounting rod are rotatably connected to the above-mentioned rotating shaft 412. The two rotating shafts 412 are arranged opposite to each other, so that when the driving gear 424 controls the driven gear 425 to rotate, the driven gear 425 drives the rotating shaft to rotate, and the rotating shaft drives the mounting rod to rotate. The mounting rod drives the stirring components 41 on its two ends to rotate around the rotating shaft, thereby increasing the range in which the stirring components 41 can be stirred.

[0037] Furthermore, the synchronous control component 42 includes: a support rod 421 is upright and fixed on the top wall of each partition 3, and the top ends of multiple support rods 421 are horizontally fixed with a supporting plate 422, and a first motor 423 is fixed on the bottom wall of the supporting plate 422, and a driving gear 424 is fixedly installed on its output end. The top end of each rotating shaft 412 extends to above the annular bracket 411, and a driven gear 425 is fixed on its outer wall, and the driving gear 424 and multiple driven gears 425 are meshed and connected.

[0038] Furthermore, the lifting mechanism 2 includes: a mounting frame 21 symmetrically fixed to the side wall of the mixing box 1, an electric push rod 22 fixedly installed on the bottom wall of the mounting frame 21, and a mounting seat 23 fixed to the two corresponding mounting frames 21 on the top wall of the top cover 11, and the output end of the electric push rod 22 on each side is fixed to the bottom wall of the mounting seat 23 on the corresponding side.

[0039] Specifically, in other schemes, two lifting ears can be symmetrically fixedly installed on the top wall of the top cover 11, and a lifting device is fixedly connected to the top wall of the mixing box 1. The telescopic end of the lifting device is fixedly installed on the lifting ears on both sides. When the telescopic end of the lifting device contracts, the top cover 11 will be pulled up through the lifting ears on both sides.

[0040] Furthermore, the scraper assembly 5 includes: a second motor 51 fixedly mounted on the top cover 11, the output end of the second motor 51 is fixedly connected to the top wall of the carrier plate 422, and each partition 3 is provided with an insertion groove 52 along its height on the end close to the inner wall of the mixing chamber, and an insertion block 53 is inserted in the insertion groove 52, and a scraper 54 is fixedly connected to the end face of the insertion block 53 close to the inner wall of the mixing chamber, and the scraper 54 is attached to the inner wall of the mixing chamber.

[0041] Specifically, in this device, a recessed groove is provided along the height of the side wall of the insertion groove 52 away from the inner wall of the mixing chamber, and a pressure plate is movably installed in the recessed groove. A plurality of extrusion springs are provided on the side wall of the pressure plate away from the insertion block 53, and the other end of the extrusion spring is in contact with the inner wall of the recessed groove. When the insertion block 53 is inserted into the insertion groove 52, the pressure plate will be squeezed to shrink toward the recessed groove. At this time, the extrusion spring is compressed, and the rebound kinetic energy generated by it will drive the pressure plate to press against the insertion block 53, and at the same time cooperate with a plurality of limit grooves 521 and limit blocks 531 to achieve stable assembly of the insertion block 53 in the insertion groove 52.

[0042] Furthermore, limiting grooves 521 are provided on the inner walls on both sides of the insertion groove 52 . The limiting grooves 521 are at the same height as the insertion groove 52 . Limiting blocks 531 are accommodated in the limiting grooves 521 . The limiting blocks 531 are fixedly mounted on the side walls of the insertion block 53 .

[0043] The working principle and use process of this utility model:

[0044] First, the output end of the electric push rod 22 is extended to pull the top cover 11 upward, so that the partition 3 is moved out of the mixing chamber, and the mixed material is put into the mixing chamber;

[0045] After the feeding is completed, the output end of the electric push rod 22 retracts, pulling the top cover 11 to reseal it to the top of the mixing box 1, and using multiple partitions 3 to divide the interior of the mixing chamber into multiple stirring areas 31. At this time, the output end of the first motor 423 drives the driving gear 424 to rotate, and the driving gear 424 drives multiple driven gears 425 meshing with it to rotate. The driven gears 425 control the rotation of the rotating shaft 412, and the rotating shaft 412 drives multiple stirring rods 413 fixed on its outer wall to rotate around it, thereby stirring the mixed materials in the stirring area 31;

[0046] After the mixing is completed, the first motor 423 stops working, and the output end of the second motor 51 drives the supporting plate 422 to rotate. The supporting plate 422 drives the multiple partitions 3 to rotate around the output end of the second motor 51. The scrapers 54 on the ends of the partitions 3 contact the inner wall of the mixing chamber to scrape off the sticky materials on the inner wall of the mixing chamber.

[0047] After completion, the control valve opens and the mixed material in the mixing chamber is discharged along the discharge pipe.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mixing device for silica gel production, characterized in that: include: A mixing box (1) is provided with a mixing cavity therein, and a top cover (11) is detachably connected to the top wall of the mixing box (1), and the top cover (11) is used to seal the mixing cavity; A lifting mechanism (2) is movably connected to the side wall of the mixing box (1) and fixedly connected to the top cover (11), and is used to drive the top cover (11) to move vertically up and down through the lifting mechanism (2); A plurality of partitions (3) are distributed at equal angles in the mixing chamber, and the adjacent ends of the plurality of partitions (3) are fixedly connected to each other, so that the mixing chamber is divided into a plurality of stirring areas (31) by the plurality of partitions (3); A stirring mechanism (4) comprising: A stirring component (41) is provided in the stirring area (31) between each two adjacent partitions (3), and a synchronous control component (42) is further provided on the plurality of partitions (3), wherein the synchronous control component (42) and the plurality of stirring components (41) are movably connected; Furthermore, a scraping assembly (5) is detachably fixedly mounted on the end of each partition (3) close to the inner wall of the mixing chamber, and the scraping assembly (5) is attached to the inner wall of the mixing chamber.

2. A mixing device for silica gel production according to claim 1, characterized in that: The stirring assembly (41) comprises: An annular support (411) is fixedly mounted on the top walls of the plurality of partitions (3), and a rotating shaft (412) is rotatably connected to the annular support (411) corresponding to each stirring area (31); The rotating shaft (412) is arranged vertically, and a plurality of groups of stirring members are fixedly installed on its outer wall at equal intervals along its height, each group of stirring members has a plurality of stirring rods (413) fixedly connected to the outer wall of the rotating shaft (412) at equal angles, and the stirring rods (413) and the rotating shaft (412) are vertically distributed.

3. A mixing device for silica gel production according to claim 2, characterized in that: The synchronization control component (42) includes: A support rod (421) is fixedly connected vertically to the top wall of each partition (3), and a supporting plate (422) is fixedly connected horizontally to the top ends of the supporting rods (421). A first motor (423) is fixedly connected to the bottom wall of the supporting plate (422), and a driving gear (424) is fixedly installed on the output end of the first motor (423). The top end of each rotating shaft (412) extends to above the annular support (411), and a driven gear (425) is fixedly connected to the outer wall thereof. The driving gear (424) and the plurality of driven gears (425) are meshed and connected.

4. A mixing device for silica gel production according to claim 1, characterized in that: The lifting mechanism (2) comprises: A mounting frame (21) is symmetrically fixed to the side wall of the mixing box (1), and an electric push rod (22) is fixedly mounted on the bottom wall of the mounting frame (21); A mounting seat (23) is fixedly connected to the top wall of the top cover (11) corresponding to the two mounting frames (21), and the output end of the electric push rod (22) on each side is fixedly connected to the bottom wall of the mounting seat (23) on the corresponding side.

5. A mixing device for silica gel production according to claim 3, characterized in that: The wall scraping assembly (5) comprises: a second motor (51) fixedly mounted on the top cover (11), wherein an output end of the second motor (51) is fixedly connected to a top wall of the carrier plate (422); An insertion groove (52) is provided along the height of each partition (3) on the end portion close to the inner wall of the mixing chamber, an insertion block (53) is inserted into the insertion groove (52), and a scraper (54) is fixedly connected to the end surface of the insertion block (53) close to the inner wall of the mixing chamber, and the scraper (54) is attached to the inner wall of the mixing chamber.

6. A mixing device for silica gel production according to claim 5, characterized in that: Limiting grooves (521) are also provided on the inner walls on both sides of the insertion groove (52). The limiting grooves (521) and the insertion groove (52) have the same height. Limiting blocks (531) are accommodated in the limiting grooves (521). The limiting blocks (531) are fixedly mounted on the side walls of the insertion block (53).

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