A silicone slurry recovery device

Abstract

The utility model discloses a kind of organic silicon slurry recovery devices, including drive unit and the transmission unit driven by drive unit;Rotary boosters of transmission unit are rotatably installed on the mounting seat plate of tower kettle bottom;Rotary boosters are hollow cylinder structure, its upper end is equipped with feed inlet, lower end is equipped with outlet, outer periphery is equipped with outer ring gear;Rotary boosters are fixedly provided with helical guide vane spaced distribution on inner wall, and outlet is formed on helical guide vane common flow guide center side;Drive unit drives connection center gear, center gear is engaged with the outer ring gear of all rotary boosters, and by transmission unit drive, to synchronously drive all rotary boosters same direction rotation.This product provides a set of compact structure, sealing reliable, running smoothly, efficient organic silicon slurry recovery device of discharging, can be active, fast, thoroughly export high viscosity slurry, significantly improve organic silicon production efficiency, realize slurry source efficient recovery, reduce safety environmental protection risk.

Description

Technical Field

[0001] This utility model relates to a recycling device, and more particularly to a device for recycling organosilicon slurry. Background Technology

[0002] Organosilicon slurry is a byproduct of the synthesis of methylchlorosilane. It contains high-boiling-point substances and precious metal catalysts with high added value, thus having high resource value. However, its characteristics of easily releasing corrosive hydrogen chloride and flammable hydrogen when exposed to water, and potentially spontaneously combusting when exposed to air, also bring significant environmental safety risks, making its efficient recycling particularly necessary.

[0003] Currently, intermittent discharge is commonly used to treat organosilicon slurry in the reboiler. When the slurry accumulates to a certain level, it is discharged to a downstream collection tank or treatment device by opening the bottom discharge valve, relying solely on gravity or the slight positive pressure within the tower. However, this traditional method has several significant drawbacks: low discharge efficiency, susceptibility to clogging, and slow discharge speed due to the viscous slurry's high solid content and poor fluidity caused by gravity alone. Especially when the slurry has a high solid content or a slight drop in temperature, it is prone to solidification, adhesion to walls, or blockage at the discharge port and in the pipes, leading to interruptions in the discharge operation and requiring frequent manual cleaning and maintenance, severely impacting production continuity. Furthermore, the long operating cycle affects overall efficiency: the slow discharge rate directly extends the cycle time of individual production batches, reducing the operational flexibility and overall efficiency of the entire organosilicon monomer production unit.

[0004] Therefore, developing a device that can be installed at the bottom of the tower and can actively, quickly, and thoroughly remove slurry is of great significance for improving the efficiency of organosilicon production, achieving efficient source recovery of slurry, and reducing safety risks. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this invention provides an organosilicon slurry recycling device.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: an organosilicon slurry recycling device, integrated into the bottom of the tower, including a drive unit and a transmission unit driven by the drive unit; The transmission unit includes at least two sets of rotating boosters, which are rotatably mounted on the mounting plate at the bottom of the tower. The rotating booster has a hollow cylindrical structure with a feed inlet at the upper end, an outlet at the lower end, and an external gear ring on the outer periphery. The inner wall of the rotating booster is fixedly provided with spaced spiral guide plates, which together guide the flow to form an outlet on the central side. The drive unit drives the central gear, which meshes with the outer gear rings of all the rotating boosters and is driven by the transmission unit to synchronously drive all the rotating boosters to rotate in the same direction.

[0007] Furthermore, the rotary booster is connected to the mounting plate via a dynamic sealing structure.

[0008] Furthermore, the spiral guide plate inside the rotary booster is a continuous multi-head spiral blade. Multiple spiral lines are arranged side by side and equidistant from the top to the bottom feed inlet. Each spiral line forms an independent blade, and all spiral lines are combined to form a spiral whole.

[0009] Furthermore, there are three rotating boosters, which are arranged in a centrally symmetrical and uniform manner around the central gear.

[0010] Furthermore, the drive unit is an explosion-proof motor, a hydraulic motor, or a pneumatic motor.

[0011] Furthermore, the base of the explosion-proof motor, hydraulic motor, or pneumatic motor is fixedly connected to the bottom of the tower.

[0012] This utility model discloses an organosilicon slurry recycling device. Addressing the drawbacks of traditional intermittent gravity discharge, such as easy clogging, slow discharge, long cycles, and frequent maintenance, the device integrates a mechanical active propulsion mechanism at the bottom of the tower bottom. This mechanism consists of an explosion-proof motor, a central gear, and multi-head spiral propulsion boosters. The motor drives multiple hollow spiral propulsion boosters evenly distributed around the circumference to rotate synchronously. Continuous multi-head spiral guide plates on the inner wall simultaneously apply downward thrust to the highly viscous slurry, forcibly pushing the slurry out of the outlet at high speed. This achieves immediate discharge, continuous non-clogging, rapid and thorough discharge, significantly shortening the discharge time, eliminating the need for manual cleaning, reducing the cycle time per batch, and significantly improving production flexibility and overall efficiency, while simultaneously achieving efficient recycling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0015] Figure 3 This is a schematic diagram of the rotating booster.

[0016] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0017] In the diagram: 1. Tower; 2. Mounting plate; 3. Rotary booster; 5. Central gear; 6. Drive unit; 7. Transmission unit; 31. Feed inlet; 32. Spiral guide plate; 33. Outlet; 34. External gear ring. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] In this embodiment, as shown in 1, 2, and 4, an organosilicon slurry recycling device is provided. The device is integrated into the bottom of the tower 1. Its core purpose is to provide forced outflow power for the high-viscosity organosilicon slurry inside the tower 1 through a set of mechanical active boosting mechanisms, thereby realizing the rapid, smooth, and thorough discharge of the slurry, improving recycling efficiency, and reducing safety and environmental risks.

[0020] A horizontal mounting plate 2 is welded or flanged to the bottom of the reactor vessel 1, serving as the load-bearing foundation for the entire recovery unit. Three rotating boosters 3 are evenly arranged along the same circumference on the mounting plate 2. The central axes of the three boosters 3 are parallel to the central axis of the reactor vessel 1, and they are arranged symmetrically around the central axis of the reactor vessel 1. Each booster 3 is supported on the mounting plate 2 by a bearing 4 and can rotate freely around its own axis.

[0021] Each rotating booster 3 is a hollow cylindrical component, open at the top to form a feed inlet 31 and open at the bottom to form a discharge outlet 33, with an external gear ring 34 machined around its outer perimeter. For example... Figure 3 As shown, the inner wall of the rotary booster 3 is fixedly provided with a continuous multi-head spiral guide plate 32. The multi-head spiral guide plate 32 is formed by multiple spiral lines arranged side by side and equidistantly coiled. Each spiral line extends from the top of the feed inlet 31 to the bottom of the outlet 33, forming an independent blade. All the blades are combined into a spiral whole. The inner edge of the spiral guide plate 32 forms a smooth circular central channel, which is the outlet 33.

[0022] The geometric center of the mounting plate 2 is driven by the drive unit 6, which rotates the central gear 5. The central gear 5 simultaneously meshes with the external gear rings 34 of the three rotating boosters 3, forming a planetary gear transmission. The drive unit 6 uses an explosion-proof motor, whose base is bolted to the outer bottom of the tower 1. In some embodiments, the output shaft of the explosion-proof motor is connected to the central gear 5 via a reducer and a vertical transmission shaft. After the explosion-proof motor is started, the central gear 5 synchronously drives the three rotating boosters 3 to rotate in the same direction with consistent speed and balanced torque.

[0023] The position where the rotary booster 3 passes through the mounting plate 2 is set as a dynamic seal. The dynamic seal is achieved by the rotary booster 3 rotating on the outlet end ring seat of the mounting plate 2 through the dynamic sealing ring. The dynamic sealing ring is sleeved on the inner wall of the journal of the rotary booster 3 and rotates together with the rotary booster 3. The dynamic sealing ring and the outlet end ring seat are axially tightly fitted, thereby preventing the slurry medium containing hydrogen chloride inside the tower 1 from leaking outward along the journal of the rotary booster 3.

[0024] When the bottom of the tower needs to discharge slag, the explosion-proof motor is started, and the power is transmitted to the central gear 5 through the reducer and drive shaft. The central gear 5 drives the three rotating boosters 3 to rotate synchronously in the same direction. The organosilicon slurry in the bottom of the tower enters the feed inlet 31 under the action of gravity and the suction of the multi-head spiral guide plate 32. It is then captured, sheared and forcibly pushed downward by the rotating spiral guide plate 32. Finally, it is sprayed out from the outlet 33 in a high-speed, high-density continuous material block state and falls into the collection bucket 10 below. The whole slag discharge process is fast, continuous, unblocked and residue-free.

[0025] For high-viscosity, easily clogged, and non-Newtonian materials such as organosilicon slurry, the use of multi-head spiral guide plates 32 is equivalent to multiple sets of blades pushing simultaneously compared to single-head spirals. The theoretical discharge volume per unit time is increased several times, the discharge is continuous and stable, the pulsation is significantly reduced, and the conveying efficiency is higher. The helix angle of the spiral guide plate 32 is defined as the angle between the tangent of the helix and the plane perpendicular to the axis, and the lead is defined as the distance the helix travels in the axial direction when it rotates around the axis once; for an n-head spiral, the lead P is equal to n times the pitch. Considering the high viscosity characteristics of organosilicon slurry, this invention, based on extensive fluid dynamics calculations and engineering verification, makes the following limitations on the helix angle and lead: The preferred range for the helix angle is 15°~30°: below 15°, the axial thrust is insufficient, and blockage is likely to occur; above 30°, the circumferential shearing effect weakens, and the ability to grasp high-viscosity materials decreases; the preferred range for the ratio P / D of the lead P to the diameter D of the rotating booster is 1.2~2.0: if the ratio is too small, the continuous pushing surface is insufficient, and a stable material block cannot be formed; if the ratio is too large, the structure is loose, the torque requirement is high, and the equipment size increases. For example, in the 150mm diameter rotary booster 3, the design of a double-headed spiral, a spiral angle of 20°, and a lead of 240mm (P / D=1.6) has an excellent discharge effect on methylchlorosilane slurry with a solid content of 20%~30%.

[0026] In other embodiments, the rotating booster 3 can be set to two, four or more depending on the diameter and throughput of the tower 1. The core requirement is that they are evenly arranged around the central gear 5 to ensure transmission balance and uniform discharge. The drive unit 6 is not limited to an explosion-proof motor, but can also be a hydraulic motor or a pneumatic motor to adapt to different on-site power sources and space constraints. The transmission method can also be synchronous belt or chain drive, but gear drive has higher rigidity and synchronization accuracy. For working conditions with lower pressure or less hazardous media, the dynamic sealing method can be replaced by a stuffing box seal, which achieves sealing by compressing the packing, resulting in lower cost and easier maintenance.

[0027] Through the above structural design, this utility model integrates a compact, reliably sealed, stable, and highly efficient organosilicon slurry recovery device at the bottom of the tower 1. It can actively, quickly, and thoroughly discharge high-viscosity slurry, significantly improve organosilicon production efficiency, achieve efficient slurry source recovery, and reduce safety and environmental risks.

[0028] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. An organosilicon slurry recovery device, integrated into the bottom of a tower (1), characterized in that, It includes a drive unit (6) and a transmission unit (7) driven by the drive unit (6). The transmission unit (7) includes at least two sets of rotating boosters (3), which are rotatably mounted on the mounting plate (2) at the bottom of the tower (1); the rotating booster (3) is a hollow cylindrical structure with a feed inlet (31) at the upper end, an outlet (33) at the lower end, and an outer toothed ring (34) on the outer periphery; the inner wall of the rotating booster (3) is fixedly provided with spaced spiral guide plates (32), which together guide the flow to form the outlet (33) on the center side. The drive unit (6) drives the connecting center gear (5), which meshes with the outer gear ring (34) of all the rotating boosters (3) and is driven by the transmission unit (7) to synchronously drive all the rotating boosters (3) to rotate in the same direction.

2. The organosilicon slurry recovery device according to claim 1, characterized in that: The rotating booster (3) is connected to the mounting base plate (2) through a dynamic sealing structure.

3. The organosilicon slurry recovery device according to claim 1, characterized in that: The spiral guide plate (32) inside the rotating booster (3) is a continuous multi-head spiral blade. Multiple spiral lines are arranged side by side and equidistant from the top to the feed inlet (31) at the bottom. Each spiral line forms an independent blade, and all spiral lines are combined into a spiral whole.

4. The organosilicon slurry recovery device according to claim 1, characterized in that: The number of the rotating boosters (3) is three, and they are arranged in a centrally symmetrical and uniform manner around the central gear (5).

5. The organosilicon slurry recovery device according to claim 1, characterized in that: The drive unit (6) is an explosion-proof motor, a hydraulic motor, or a pneumatic motor.

6. The organosilicon slurry recovery device according to claim 1, characterized in that: The base of the explosion-proof motor, hydraulic motor or pneumatic motor is fixedly connected to the bottom of the tower (1).

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