Impurity removal device for benzophenone

Abstract

The impurity removal device comprises an impurity removal reaction tank, a liquid extraction pipe penetrates through a tank cover of the impurity removal reaction tank, the liquid extraction pipe is in vertical sliding connection with the tank cover, one end, penetrating out of the tank cover, of the liquid extraction pipe is connected with a hose, the periphery of the liquid extraction pipe is sleeved with a worm wheel disc in a threaded mode, and the worm wheel disc is connected with a worm gear. The periphery of the worm wheel disc is connected with a worm in a meshed mode, the worm drives the worm wheel disc to rotate when rotating so as to control the liquid pumping pipe to move upwards or downwards to adjust the height, and a corrugated sealing sleeve is fixed to the connecting position of the liquid pumping pipe and the tank cover. The liquid pumping pipe is externally connected with the pump body, so that an impurity-containing solution in the impurity removal reaction tank is conveniently pumped out, the possibility of shaking benzophenone is reduced, the separation rate of the benzophenone and the impurity-containing solution is further improved when the impurity-containing solution is discharged, the depth of the liquid pumping pipe inserted into the impurity removal reaction tank can be adjusted, and the impurity removal reaction tank is convenient to use. Therefore, the height of the liquid pumping pipe can be adjusted according to different reaction amounts in the tank, and the discharge rate of an impurity solution can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of benzophenone production and processing, in particular to an impurity removal device for benzophenone. Background Art

[0002] Benzophenone is an intermediate of ultraviolet absorber, organic pigment, medicine, fragrance and pesticide. The main raw materials for the synthesis of benzophenone are benzene and benzoyl chloride, assisted by various catalysts for catalytic synthesis. After the synthesis of benzophenone, it needs to be removed from the mixture. Since benzophenone itself is insoluble in acidic and alkaline solutions, the main operation method of removing impurities is: adding acidic and alkaline solutions to mix for removal of impurities, and separating the impurities dissolved in the acidic and alkaline solutions after standing and stratifying.

[0003] The existing impurity removal device is shown in the patent document with application number 202122074281.3, which discloses a dibenzophenone impurity removal device. The device is provided with a liquid inlet pipe surrounding the outer wall of the kettle body in the heating chamber, one end of the liquid inlet pipe is connected to the first liquid inlet, and the other end of the liquid inlet pipe is connected to the annular liquid distribution pipe, and a plurality of first liquid outlets are provided on the annular liquid distribution pipe, so that the reaction liquid can fully contact with the heat source and heat quickly to improve the utilization rate of the heat source. At the same time, a stirring paddle is provided to connect the U-shaped plate, and the U-shaped plate is fully contacted with the inner wall of the kettle body through the first spring, the second spring and the first spring to avoid wall hanging. The cleaning inside the kettle is simple, and wear is reduced and the service life is increased.

[0004] However, the device still has the following shortcomings: since the impurities in benzophenone need to be left to stand and separate after being dissolved in acidic and alkaline solutions, and the solution containing impurities after separation is not easy to be discharged from the device, the benzophenone is easily shaken during the discharge process, resulting in incomplete separation of the solution containing impurities and benzophenone.

[0005] Therefore, we propose a kind of impurity removal device for benzophenone to solve the above-mentioned problem. Utility Model Content

[0006] The purpose of the utility model is to provide a device for removing impurities from benzophenone to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A device for removing impurities from benzophenone comprises an impurity removal reaction tank, a tank cover of which is penetrated by a liquid extraction pipe, the liquid extraction pipe is vertically slidably connected to the tank cover, and one end of the liquid extraction pipe passing through the tank cover is connected to a hose, a worm wheel is threadedly sleeved on the outer periphery of the liquid extraction pipe, and a worm is meshingly connected to the outer periphery of the worm wheel, and when the worm rotates, the worm wheel is driven to rotate to control the liquid extraction pipe to move upward or downward to adjust the height, and a corrugated sealing sleeve is fixed at the connection between the liquid extraction pipe and the tank cover.

[0009] In a further embodiment, a transparent observation window is provided on the surface of the impurity removal reaction tank.

[0010] In a further embodiment, a protrusion is provided on the inner wall of the inner hole of the tank cover, and a groove matching the protrusion is provided on the outer wall of the liquid extraction tube.

[0011] In a further embodiment, a filter screen is installed inside the bottom end of the liquid extraction tube.

[0012] In a further embodiment, a bottom port of the liquid extraction tube is uniformly provided with a plurality of notch grooves along the circumferential direction.

[0013] In a further embodiment, a one-way valve is also installed inside the bottom end of the liquid extraction tube.

[0014] In a further embodiment, a plurality of support rods are fixed to the lower surface of the worm wheel, and the lower ends of the support rods are connected to the tank cover via a slewing bearing.

[0015] In a further embodiment, the worm is supported on the tank cover via a bearing seat, and one end of the worm passes through the bearing seat and is connected to a handle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a pumping tube externally connected to a pump body, thereby facilitating the extraction of the impurity-containing solution in the impurity removal reaction tank and reducing the possibility of shaking the benzophenone, thereby improving the separation rate of the impurity-containing solution and the benzophenone when the impurity-containing solution is discharged; and the pumping tube can be adjusted to a depth of insertion into the impurity removal reaction tank under the rotation drive of the worm wheel and the worm, thereby allowing the pumping tube to be always placed at the separation layer between the impurity-containing solution and the benzophenone according to different reaction amounts in the tank, thereby facilitating the improvement of the discharge rate of the impurity-containing solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the semi-section structure of the utility model;

[0020] Figure 3This is a schematic diagram of the rear view structure of the worm wheel and worm installed in the utility model;

[0021] Figure 4 This is a schematic diagram of the semi-sectional structure of the installation of the worm wheel and the liquid extraction pipe of the utility model;

[0022] Figure 5 It is a partial half-section structural schematic diagram of the bottom end of the liquid extraction tube of the utility model.

[0023] In the figure: 1. impurity removal reaction tank; 11. observation window; 2. tank cover; 21. bump; 3. liquid extraction tube; 31. groove; 32. filter screen; 33. notch groove; 34. one-way valve; 4. hose; 5. worm wheel; 51. support rod; 52. slewing bearing; 6. worm; 7. handle; 8. corrugated sealing sleeve. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-2A device for removing impurities from benzophenone comprises an impurity removal reaction tank 1. A tank cover 2 is fixed to the upper port of the impurity removal reaction tank 1 by bolts. The tank cover 2 is provided with a benzophenone feeding port and a reaction liquid feeding port, which are convenient for feeding the materials separately. At the same time, a motor is arranged on the tank cover 2, and a stirring rod is arranged in the tank to accelerate the stirring reaction. In order to conveniently discharge the solution containing impurities after standing and stratifying in the tank, a liquid extraction pipe 3 is passed through the tank cover 2. The liquid extraction pipe 3 is vertically slidably connected to the tank cover 2. One end of the liquid extraction pipe 3 is inserted into the impurity removal reaction tank 1 so that it can contact the solution containing impurities after standing and stratifying. One end of the liquid extraction pipe 3 passing through the tank cover 2 is connected to an external pump body device through a hose 4, thereby providing power for the liquid extraction pipe 3, so that the solution containing impurities can be extracted through the liquid extraction pipe 3.

[0028] See also Figure 1-3 Considering that the amount of benzophenone to be removed in actual use varies, the liquid level of the solution containing impurities varies after standing and stratifying. Therefore, a worm wheel 5 is connected to the outer thread of the liquid extraction tube 3. A plurality of support rods 51 are fixed to the lower surface of the worm wheel 5. The lower ends of the support rods 51 are connected to the tank cover 2 through a slewing bearing 52. The support rods 51 support the worm wheel 5 and enable the worm wheel 5 to rotate relative to the tank cover 2. The tank cover 2 is also provided with a bearing seat. A worm 6 is rotatably installed, and the worm 6 is meshedly connected with the periphery of the worm wheel disk 5, so that the worm wheel disk 5 can be driven to rotate when the worm 6 is rotated. One end of the worm 6 is connected with a handle 7 through the bearing seat, so that the worm 6 can be easily driven to rotate by the handle 7. Since the worm wheel disk 5 is threadedly connected with the liquid extraction tube 3, when the worm wheel disk 5 rotates, the liquid extraction tube 3 moves upward or downward to adjust the height under the action of the thread, and then the bottom end of the liquid extraction tube 3 is adjusted to be inserted into the solution containing impurities, so as to facilitate the extraction of the solution.

[0029] See also Figure 4 In order to prevent the liquid extraction tube 3 from rotating with the worm wheel 5 and being unable to adjust its height, a protrusion 21 is provided on the inner wall of the inner hole of the tank cover 2, and a groove 31 matching the protrusion 21 is provided on the outer wall of the liquid extraction tube 3. The protrusion 21 is inserted into the groove 31 and slides without affecting the lifting and lowering movement of the liquid extraction tube 3. At the same time, the liquid extraction tube 3 can be limited to prevent it from rotating and deflecting.

[0030] See also Figure 2-4 Since the liquid extraction pipe 3 is slidably connected to the tank cover 2, a gap is left at the connection between the liquid extraction pipe 3 and the tank cover 2. In order to prevent dust from entering the tank through the gap, a corrugated sealing sleeve 8 is fixed at the connection between the liquid extraction pipe 3 and the tank cover 2. The inside of the corrugated sealing sleeve 8 is hollow, and its lower end is fixedly sealed with the surface of the tank cover 2, and the upper end of the corrugated sealing sleeve 8 is fixedly sealed with the outer wall of the liquid extraction pipe 3, and the corrugated sealing sleeve 8 can be telescopic and folded, so as not to affect the movement and adjustment of the liquid extraction pipe 3.

[0031] See also Figure 1 In order to facilitate the operator to control the adjustment height when adjusting the suction tube 3, a transparent observation window 11 is provided on the surface of the impurity removal reaction tank 1, so that it is convenient to observe the position of the stratified liquid level in the tank through the observation window 11, so as to improve the accuracy of the suction tube 3 placed in the stratified liquid level of the solution containing impurities and benzophenone.

[0032] See also Figure 5 In order to prevent benzophenone from being discharged when the impurity solution is discharged, a filter screen 32 is installed inside the bottom end of the liquid extraction tube 3, so as to prevent the crystallized benzophenone from being sucked away. In order to prevent the lower end of the liquid extraction tube 3 from being blocked by benzophenone when it is against the crystallized benzophenone, so that the liquid extraction tube 3 cannot be sucked and discharged, a plurality of notches 33 are evenly opened along the circumferential direction at the bottom end of the liquid extraction tube 3, so as to facilitate the liquid to be sucked from the side through the notches 33.

[0033] See also Figure 5 Considering that the liquid extraction pipe 3 is placed vertically, after the pump body equipment stops working, part of the solution inside the liquid extraction pipe 3 will flow back into the tank under the action of gravity, thereby impacting the layered liquid that has been stationary, which may easily cause the liquid to be impacted and mixed, which is not conducive to the separation operation. Therefore, a one-way valve 34 is also installed inside the bottom end of the liquid extraction pipe 3. The one-way valve 34 controls the flow direction so that it can only flow from the lower end to the upper end of the liquid extraction pipe 3. Therefore, even after the pump body equipment stops working, the liquid will not flow back into the tank.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for removing impurities from benzophenone, comprising an impurity removal reaction tank (1), characterized in that: A liquid extraction pipe (3) passes through the tank cover (2) of the impurity removal reaction tank (1), and the liquid extraction pipe (3) is vertically slidably connected to the tank cover (2), and one end of the liquid extraction pipe (3) passing through the tank cover (2) is connected to a hose (4), the outer periphery of the liquid extraction pipe (3) is threadedly sleeved with a worm wheel (5), and the outer periphery of the worm wheel (5) is meshingly connected with a worm (6), and when the worm (6) rotates, the worm wheel (5) is driven to rotate so as to control the liquid extraction pipe (3) to move upward or downward to adjust the height, a corrugated sealing sleeve (8) is fixed at the connection between the liquid extraction pipe (3) and the tank cover (2), a protrusion (21) is provided on the inner wall of the inner hole of the tank cover (2), and a groove (31) matching the protrusion (21) is provided on the outer wall of the liquid extraction pipe (3).

2. The impurity removal device for benzophenone according to claim 1, characterized in that: A transparent observation window (11) is provided on the surface of the impurity removal reaction tank (1).

3. The impurity removal device for benzophenone according to claim 1, characterized in that: A filter screen (32) is installed inside the bottom end of the liquid extraction tube (3).

4. The impurity removal device for benzophenone according to claim 1, characterized in that: The bottom end of the liquid extraction tube (3) is evenly provided with a plurality of notched grooves (33) along the circumferential direction.

5. The impurity removal device for benzophenone according to claim 1, characterized in that: A one-way valve (34) is also installed inside the bottom end of the liquid extraction tube (3).

6. The impurity removal device for benzophenone according to claim 1, characterized in that: A plurality of support rods (51) are fixed to the lower surface of the worm wheel (5), and the lower ends of the support rods (51) are connected to the tank cover (2) via a slewing bearing (52).

7. The impurity removal device for benzophenone according to claim 1, characterized in that: The worm (6) is supported on the tank cover (2) via a bearing seat, and one end of the worm (6) passes through the bearing seat and is connected to a handle (7).

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