High-speed stirrer for preparing decabromodiphenyl ethane
By designing spiral stirring blades and dropping pipe fittings for a high-speed mixer, the problems of raw material turbulence and unstable dropping during the preparation of decabromodiphenyl ethane were solved, achieving stable mixing and efficient preparation.
Patent Information
- Application Number
- CN202520112196.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In the existing technology, during the preparation of decabromodiphenyl ethane, the stirring mechanism causes the raw materials to churn violently, resulting in boiling and splashing of the raw materials in the reactor. Furthermore, the addition of diphenyl ethane affects the mixing rate, making it difficult to achieve simultaneous stirring and addition.
A high-speed mixer was designed, which uses a spiral stirring blade and a dripping pipe. The dripping pipe extends into the stirring rod, and the dripping speed of diphenyl ethane is controlled by a flow control valve. It is also equipped with an insulation jacket to reduce heat loss, so as to achieve simultaneous stirring and dripping.
This process achieves uniform mixing of raw materials, prevents precipitation or stratification of reactants, maintains the continuity and stability of the reaction, and improves product quality and preparation efficiency.
Smart Images
Figure CN223697480U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to decabromodiphenyl ethane preparation technical field especially a high speed mixer for preparation decabromodiphenyl ethane. BACKGROUND
[0002] Decabromodiphenyl ethane is an important flame retardant, and its main raw material for preparation is diphenyl ethane and bromine, and the specific preparation process is bromination reaction: a certain amount of bromine and catalyst are added in the reaction kettle, and then the melted diphenyl ethane is slowly added dropwise. The reaction is a free radical substitution reaction, and bromine and diphenyl ethane produce free radicals under the action of initiator, and then initiate the free radical substitution reaction of bromine and diphenyl ethane.
[0003] In the prior art, in order to accelerate the bromination reaction rate during the preparation of decabromodiphenyl ethane, a stirring mechanism is generally arranged in the reaction kettle to accelerate the mixing of raw materials, but the raw materials are violently stirred when the stirring mechanism is stirring, at this time, the dropwise addition of diphenyl ethane will cause violent boiling and spattering of the raw materials in the kettle, and the dropwise addition of diphenyl ethane when the raw materials are at rest will also affect the mixing rate of the raw materials, so it is difficult to realize the dropwise addition of diphenyl ethane while stirring.
[0004] Therefore, we propose a high speed mixer for preparation decabromodiphenyl ethane to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a high speed mixer for preparation decabromodiphenyl ethane to solve the problems in the background art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A high speed mixer for preparation decabromodiphenyl ethane, including the stirring rod, the outer wall of the stirring rod is installed with the stirring blade through the support, the stirring rod is penetrated up and down, and the connecting table is rotatably installed at the top end of the stirring rod, the dropwise addition pipe is penetrated in the connecting table, the lower end of the dropwise addition pipe extends into the inside of the stirring rod, the top end of the dropwise addition pipe is installed with the dropwise addition funnel through the flow control valve, the dropwise addition funnel and the connecting table are supported through the support, the outer wall of the upper end of the stirring rod is coaxially fixed with the bevel gear ring, the outer edge of the bevel gear ring is vertically meshed with the bevel gear, and the shaft rod end of the bevel gear is connected with the motor.
[0008] In further embodiments, the stirring blade adopts a spiral structure.
[0009] In further embodiments, the dropwise addition pipe includes an inner tube and an outer tube that are slidingly coupled, the top end of the inner tube is connected with the flow control valve, and the outer tube is sleeved on the outside of the bottom end of the inner tube.
[0010] In further embodiments, a screw sleeve is also rotatably installed on the connecting table, and the screw sleeve is screwed on the outside of the outer tube.
[0011] In further embodiments, the outer wall of the inner tube is provided with a protrusion strip parallel to the axial direction, and the inner wall of the outer tube is provided with a strip groove matched with the protrusion strip.
[0012] In further embodiments, the outer wall of the inner tube is also provided with scale lines arranged equidistantly along the axial direction.
[0013] In further embodiments, a heat preservation sleeve is sleeved on the outer wall of the dropping funnel.
[0014] Compared with the prior art, the present application has the following beneficial effects:
[0015] The present application can accelerate the mixing of raw materials by setting the stirring rod, the supporting rod and the stirring blade, and can effectively control the violent boiling and the splashing range by using the dropping pipe member to extend into the stirring rod and drop diphenylmethane in the dropping funnel into the kettle, so as to realize the operation of stirring and dropping at the same time, prevent the reaction materials from producing precipitation or stratification in the dropping process, maintain the continuity and stability of the reaction, and improve the quality and preparation efficiency of the product. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the present application;
[0017] Figure 2 It is a partial sectional view of the installation of the dropping pipe member and the stirring rod of the present application;
[0018] Figure 3 It is a partial enlarged structural schematic view of the present application Figure 2 A place in the present application;
[0019] In the figure: 1, stirring rod; 2, supporting rod; 3, stirring blade; 4, bevel gear ring; 5, bevel gear; 6, motor; 7, connecting table; 8, dropping pipe member; 81, inner tube; 811, protrusion strip; 82, outer tube; 821, strip groove; 83, screw sleeve; 9, flow control valve; 10, dropping funnel; 11, support; 12, heat preservation sleeve. DETAILED DESCRIPTION
[0020] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.
[0021] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in the description of the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.
[0023] Please refer to Figure 1 A high-speed blender for preparing decabromodiphenyl ethane, comprising a stirring rod 1, the stirring rod 1 extends into the kettle from the top of the kettle body, for stirring the raw materials in the kettle, the stirring rod 1 is rotatably connected with the top of the kettle body, and stirring blades 3 are installed on the outer wall of the stirring rod 1 through support rods 2, specifically, the stirring blades 3 adopt a spiral structure, and the spiral stirring blades 3 can reduce the resistance when rotating, facilitating high-speed rotation of the raw materials.
[0024] Please refer to Figures 1-2, the stirring rod 1 is hollow, and a connecting table 7 is rotatably installed at the top end of the stirring rod 1, a dropping pipe 8 penetrates through the connecting table 7, the lower end of the dropping pipe 8 extends into the stirring rod 1, and the top end of the dropping pipe 8 is provided with a dropping funnel 10 through a flow control valve 9, the dropping funnel 10 stores the melted diphenyl ethane, the flow control valve 9 adjusts the dropping speed of the dropping funnel 10, the diphenyl ethane in the dropping funnel 10 falls into the raw materials in the stirring rod 1 through the dropping pipe 8 when the flow control valve 9 is opened, thereby reducing the possibility of splashing around, and the dropping funnel 10 and the connecting table 7 are supported by a support 11 which is fixedly connected to the top of the kettle body.
[0025] Please refer to Figures 2-3 , the dropping pipe 8 comprises an inner pipe 81 and an outer pipe 82 which are slidably sleeved, the top end of the inner pipe 81 is connected to the flow control valve 9, and the outer pipe 82 is sleeved outside the bottom end of the inner pipe 81, so that the length of the dropping pipe 8 can be adjusted, thereby controlling the falling height of the liquid drops during dropping according to the liquid level of the raw materials in the kettle, and further reducing the possibility of splashing.
[0026] Please refer to Figure 3 , in order to conveniently adjust and lock the telescopic length of the dropping pipe 8, a screw sleeve 83 is also rotatably installed on the connecting table 7, the screw sleeve 83 is threadedly connected outside the outer pipe 82, the outer wall of the inner pipe 81 is provided with a protruding strip 811 which is parallel to the axial direction, and the inner wall of the outer pipe 82 is provided with a strip groove 821 which is matched with the protruding strip 811, the screw sleeve 83 is rotated, the outer pipe 82 moves up and down under the thread action and the limiting action of the protruding strip 811 and the strip groove 821, thereby adjusting the telescopic length, the rotating direction of the screw sleeve 83 is changed to control the upward or downward movement of the outer pipe 82, and further, the outer wall of the inner pipe 81 is also provided with scale lines which are equidistantly arranged along the axial direction, so that the user can accurately control and adjust the telescopic length of the dropping pipe 8 according to the scale marks exposed by the scale lines.
[0027] Please refer to Figure 2 , in order to slow down the condensation of the melted diphenyl ethane in the dropping funnel 10, a heat preservation sleeve 12 is sleeved outside the outer wall of the dropping funnel 10, the heat preservation sleeve 12 is made of heat insulation material, thereby reducing the heat loss of the dropping funnel 10 to the outside, and thus the diphenyl ethane is preserved.
[0028] Please refer to Figures 1-2 , in order to control the rotation of the stirring rod 1 without affecting the dropping operation of the diphenyl ethane, a bevel gear ring 4 is coaxially fixed to the upper end of the stirring rod 1, the outer edge of the bevel gear ring 4 is vertically engaged with a bevel gear 5, the bevel gear 5 is supported on the top of the kettle body through a bearing seat, the shaft end of the bevel gear 5 is connected to a motor 6, the main body of the motor 6 is fixed to the top of the kettle body, the motor 6 drives the bevel gear 5 to rotate when the motor 6 works, and the bevel gear 5 drives the bevel gear ring 4 and the stirring rod 1 to rotate through the meshing action.
[0029] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments should, therefore, be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalents of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims concerned.
[0030] Furthermore, it should be understood that although the present specification describes exemplary embodiments, the application is not limited to only one independent technical solution in each embodiment, and the specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.
Claims
1. A high-speed mixer for preparing decabromodiphenyl ethane, comprising a stirring rod (1), characterized in that: A stirring blade (3) is installed on the outer wall of the stirring rod (1) via a support rod (2). The stirring rod (1) is vertically connected, and a connecting platform (7) is rotatably installed at the top of the stirring rod (1). A dripping pipe (8) is inserted through the connecting platform (7). The lower end of the dripping pipe (8) extends into the interior of the stirring rod (1), and a dripping funnel (10) is installed at the top of the dripping pipe (8) via a flow control valve (9). The dripping funnel (10) and the connecting platform (7) are supported by a bracket (11). A bevel ring (4) is coaxially fixed on the upper outer wall of the stirring rod (1). A bevel gear (5) is vertically meshed with the outer edge of the bevel ring (4), and a motor (6) is connected to the shaft end of the bevel gear (5).
2. The high-speed stirrer for preparing decabromodiphenyl ethane according to claim 1, characterized in that: The stirring blade (3) has a spiral structure.
3. The high-speed stirrer for preparing decabromodiphenyl ethane according to claim 1, characterized in that: The drip fitting (8) includes an inner tube (81) and an outer tube (82) that are slidably connected. The top end of the inner tube (81) is connected to the flow control valve (9), and the outer tube (82) is sleeved on the outside of the bottom end of the inner tube (81).
4. The high-speed mixer for preparing decabromodiphenyl ethane according to claim 3, characterized in that: A threaded sleeve (83) is also rotatably installed on the connecting platform (7), and the threaded sleeve (83) is threadedly screwed onto the outside of the outer tube (82).
5. The high-speed stirrer for preparing decabromodiphenyl ethane according to claim 3, characterized in that: The outer wall of the inner tube (81) is provided with a protrusion (811) parallel to its axial direction, and the inner wall of the outer tube (82) is provided with a groove (821) that matches the protrusion (811).
6. A high-speed stirrer for preparing decabromodiphenyl ethane according to claim 3, characterized in that: The outer wall of the inner tube (81) is also provided with scale lines arranged equidistantly along the axial direction.
7. A high-speed stirrer for preparing decabromodiphenyl ethane according to claim 1, characterized in that: The outer wall of the dripping funnel (10) is fitted with an insulating sleeve (12).