Raney nickel feeding device

Abstract

The utility model belongs to the technical field of chemical production, and particularly relates to a Raney nickel feeding device which comprises a feeding tank, the discharging end of the feeding tank is fixedly connected with a material conveying pipe, a moving groove is formed in the material conveying pipe, the inner wall of the material conveying pipe is fixedly connected with a controller, and the inner wall of the material conveying pipe is fixedly connected with a silica gel scraping plate. In the feeding process, Raney nickel can be prevented from being in contact with air, meanwhile, Raney nickel is prevented from being in contact with an operator, a worm is driven to rotate through a first driving motor, then a worm gear is driven to rotate, a baffle is moved into a moving groove from the interior of a material conveying pipe, and therefore a feeding pipe is in an open state, and feeding can be conducted on the reaction kettle; and when the upper surface of the baffle passes through the silica gel scraping plate, Raney nickel attached to the upper surface of the baffle can be scraped into the conveying pipe, so that the Raney nickel is prevented from being in contact with external air to generate reaction, and the safety of the feeding device during use is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical production, and particularly relates to a Raney nickel feeding device. BACKGROUND

[0002] Raney nickel is also translated as Lanyi nickel, which is a solid heterogeneous catalyst composed of fine grains of nickel-aluminum alloy with a porous structure. Its strong adsorption of hydrogen, high catalytic activity and thermal stability make it widely used in many industrial processes and organic synthesis reactions, usually as a hydrogenation catalyst for organic compounds. It can be used for the hydrogenation reduction reaction of unsaturated bond compounds such as aldehydes and ketones. Raney nickel is extremely flammable when exposed to air, which has certain risks. Therefore, special devices are needed when feeding it to ensure safety.

[0003] Raney nickel is a commonly used hydrogenation catalyst, which is usually stored in water. The feeding process usually uses manual direct feeding or vacuum feeding, which can easily cause Raney nickel to fall and self-ignite, and nitrogen sealing leakage of equipment, affecting production safety. Therefore, a Raney nickel feeding device is proposed to solve the above problems. INVENTION CONTENTS

[0004] In order to make up for the shortcomings of the prior art, in view of the problems existing in the prior art, the utility model provides a Raney nickel feeding device.

[0005] The utility model solves the technical problems adopted technical scheme, which is a kind of Raney nickel feeding device, including: feeding tank, the discharge end of the feeding tank is fixedly connected with transmission pipe, mobile groove is formed in the transmission pipe, the inner wall of the transmission pipe is fixedly connected with controller, the inner wall of the transmission pipe is fixedly connected with silica gel scraping plate, the outer surface of the transmission pipe is fixedly connected with first support frame, the side of first support frame is fixedly connected with first drive motor, the output end of first drive motor is fixedly connected with worm, the worm is meshed with worm wheel, the center of worm wheel is fixedly connected with connecting shaft, and connecting shaft passes through worm wheel, the both ends of connecting shaft are fixedly connected with limit rod, limit rod is rotatably connected in the inside of first support frame, connecting shaft is fixedly connected with baffle on it, connecting shaft passes through baffle, the upper surface of baffle is fixedly connected with pressing rod, controller and first drive motor are electrically connected, baffle is located in the inside of mobile groove, when baffle moves, its upper surface passes through silica gel scraping plate, can scrape the Raney nickel adhered on the upper surface of baffle and fall in the inside of transmission pipe, to avoid the reaction of Raney nickel and external air.

[0006] Preferably, the top of the feeding tank is provided with a sealing cover, the inside of the sealing cover is fixedly connected with a feeding pipe, the inside of the feeding pipe is provided with a first control valve, one side of the feeding tank is fixedly connected with an observation window, the outer surface of the discharge end of the feeding pipe is fixedly connected with a sealing ring, the sealing ring is sleeved on the outside of the receiving pipe of the reaction kettle, the threaded hole is matched with the circular plate at one end of the reinforcing bolt, the ring of the reinforcing ring is reduced, so that the sealing ring is completely attached to the outer wall of the receiving pipe of the reaction kettle, and the contact of the Raney nickel with the air during feeding is avoided.

[0007] Preferably, the outer surface of the sealing ring is fixedly connected with a reinforcing ring, one side of the reinforcing ring is provided with a threaded hole, the threaded hole is threadedly connected with a reinforcing bolt, the inner wall of the feeding tank is fixedly connected with a second support frame, the bottom of the second support frame is fixedly connected with a filter screen, the discharge end of the filter screen is connected with the discharge end of the feeding tank, and the filter screen provides a separation baffle for separation of water and Raney nickel, thereby avoiding the Raney nickel from flowing out synchronously with the water.

[0008] Preferably, the inside of the feeding tank is fixedly connected with a drain pipe, the drain pipe extends to the outside of the feeding tank, the inside of the drain pipe is provided with a second control valve, and the lower surface of the sealing cover is fixedly connected with a third support frame. The water squeezed out can be discharged to the outside of the feeding tank through the drain pipe, so that the feeding tank contains less water.

[0009] Preferably, the inside of the third support frame is rotatably connected with a threaded rod, one end of the threaded rod is fixedly connected with a second driving motor, the second driving motor is fixedly connected to the upper surface of the sealing cover, and limit grooves are formed in the two sides of the third support frame. The second driving motor operates to drive the threaded rod to rotate.

[0010] Preferably, the threaded rod is threadedly connected with a pressing plate, the pressing plate is slidably connected to the outside of the feeding pipe, the outer side of the pressing plate is fixedly connected with a silica gel pad, and the silica gel pad is attached to the inner wall of the feeding tank. In the process of moving downward, the silica gel pad can improve the friction with the inside of the feeding tank, improve the extrusion strength of the Raney nickel containing water, and thereby improve the separation efficiency of water and Raney nickel.

[0011] The feeding process can avoid the contact of the Raney nickel with the air, and the contact of the Raney nickel with the operator, the first driving motor drives the worm to rotate, and then drives the worm gear to rotate, so that the baffle moves from the inside of the feeding pipe to the moving groove, so that the feeding pipe is in an open state, and the reaction kettle can be fed. When the upper surface of the baffle passes through the silica gel scraper plate, the Raney nickel attached to the upper surface thereof can be scraped into the inside of the feeding pipe, so that the Raney nickel is prevented from reacting with the external air, and the safety of the feeding device during use is improved.

[0012] The utility model discloses open second control valve, make the drain pipe be in open state, subsequently through the second drive motor drive screw rod rotation, drive the pressing plate and move down to the inactivity gas is extruded to the silica gel pad can improve the friction force with the inside of the feeding tank to the water and raney nickel separation speed is accelerated, and the water and raney nickel are separated through the filter screen, and the water is then discharged outward through the drain pipe, and the inactivity gas is then discharged outward through the feed pipe, and then the raney nickel can be put into the reaction kettle, and the feeding efficiency is improved further. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0014] Figure 1 It is whole structure schematic diagram;

[0015] Figure 2 It is transmission pipe section schematic diagram;

[0016] Figure 3 It is reinforcing assembly schematic diagram;

[0017] Figure 4 It is whole structure section schematic diagram;

[0018] Figure 5 It is pressing plate assembly schematic diagram.

[0019] In the drawing: 1, feeding tank;2, transmission pipe;3, mobile tank;4, controller;5, silica gel scraper plate;6, first support frame;7, first drive motor;8, worm;9, worm wheel;10, limit rod;11, baffle;12, pressing rod;13, sealing cover;14, feed pipe;15, first control valve;16, observation window;17, sealing ring;18, reinforcing ring;19, reinforcing bolt;20, second support frame;21, filter screen;22, drain pipe;23, second control valve;24, third support frame;25, screw rod;26, second drive motor;27, limit slot;28, pressing plate;29, silica gel pad. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figures 1-5 As shown in FIG. 1, a Raney nickel feeding device comprises a feeding tank 1, a feeding pipe 2 fixedly connected to the discharging end of the feeding tank 1, a moving groove 3 formed in the feeding pipe 2, a controller 4 fixedly connected to the inner wall of the feeding pipe 2, a silica gel scraping plate 5 fixedly connected to the inner wall of the feeding pipe 2, a first support frame 6 fixedly connected to the outer surface of the feeding pipe 2, a first driving motor 7 fixedly connected to one side of the first support frame 6, a worm 8 fixedly connected to the output end of the first driving motor 7, a worm wheel 9 meshingly connected to the worm 8, a connecting shaft fixedly connected to the center of the worm wheel 9 and penetrating through the worm wheel 9, a limiting rod 10 fixedly connected to both ends of the connecting shaft and rotatably connected to the inside of the first support frame 6, a baffle 11 fixedly connected to the connecting shaft and penetrating through the baffle 11, a pressing rod 12 fixedly connected to the upper surface of the baffle 11, the controller 4 electrically connected to the first driving motor 7, the baffle 11 located inside the moving groove 3, a sealing cover 13 arranged on the top of the feeding tank 1, a feeding pipe 14 fixedly connected to the inside of the sealing cover 13, a first control valve 15 arranged in the inside of the feeding pipe 14, an observation window 16 fixedly connected to one side of the feeding tank 1, and a sealing ring 17 fixedly connected to the outer surface of the discharging end of the feeding pipe 2.

[0022] The feeding process of Raney nickel usually adopts manual direct feeding or vacuum extraction, which is easy to cause Raney nickel to be scattered and self-ignited and nitrogen seal of equipment to be leaked, affecting the production safety, and then a device for feeding Raney nickel is needed, in actual use, after water and inert gas contained in Raney nickel in the feeding tank 1 are discharged, the first driving motor 7 is started to drive the worm 8 to rotate, and then the worm wheel 9 is driven to rotate, so that the two groups of limiting rods 10 and the baffle 11 are driven to rotate through the connecting shaft, so that the baffle 11 is moved from the inside of the conveying pipe 2 to the moving groove 3, when the baffle 11 moves, the upper surface thereof passes the silica gel scraping plate 5, which can scrape the Raney nickel attached to the upper surface of the baffle 11 to fall in the inside of the conveying pipe 2, so that the Raney nickel is prevented from reacting with the external air, when the baffle 11 moves, the pressing rod 12 is synchronously moved, when the pressing rod 12 presses the controller 4, the controller 4 controls the first driving motor 7 to stop running, and at the same time the baffle 11 stops moving, so that the baffle 11 can seal the moving groove 3, and at the same time the conveying pipe 2 is in an open state, the Raney nickel in the inside of the feeding tank 1 can enter the reaction kettle through the conveying pipe 2 for use, after the feeding is completed, the first driving motor 7 is started again to drive the worm 8 to reversely rotate, and the worm wheel 9, the limiting rod 10, the connecting shaft and the baffle 11 also reversely rotate, so that the baffle 11 is completely located in the inside of the conveying pipe 2, and can cooperate with the silica gel scraping plate 5 to seal the conveying pipe 2, so as to prevent the Raney nickel in the feeding tank 1 from reacting with the air, so that the whole feeding process can avoid the Raney nickel from contacting with the air and the operator, and the safety of the feeding device in use is improved.

[0023] Please refer to Figures 1-5 As shown in the figure, the outer surface of the sealing ring 17 is fixedly connected with the reinforcing ring 18, the reinforcing ring 18 is provided with a threaded hole on one side, the threaded hole is threadedly connected with the reinforcing bolt 19, the inner wall of the feeding tank 1 is fixedly connected with the second support frame 20, the bottom of the second support frame 20 is fixedly connected with the filter screen 21, the discharge end of the filter screen 21 is connected with the discharge end of the feeding tank 1, the inside of the feeding tank 1 is fixedly connected with the drain pipe 22, the drain pipe 22 extends to the outside of the feeding tank 1, the inside of the drain pipe 22 is provided with the second control valve 23, the lower surface of the sealing cover 13 is fixedly connected with the third support frame 24, the inside of the third support frame 24 is rotatably connected with the threaded rod 25, one end of the threaded rod 25 is fixedly connected with the second driving motor 26, the second driving motor 26 is fixedly connected to the upper surface of the sealing cover 13, the two sides of the third support frame 24 are provided with the limiting grooves 27, the threaded rod 25 is threadedly connected with the pressing plate 28, the pressing plate 28 is slidingly connected to the outside of the feeding pipe 14, the outside of the pressing plate 28 is fixedly connected with the silica gel pad 29, and the silica gel pad 29 is attached to the inner wall of the feeding tank 1;

[0024] Before feeding, the sealing ring 17 is sleeved on the outside of the receiving tube of the reaction kettle, then the reinforcing bolt 19 is screwed into the threaded hole on the reinforcing ring 18, which cooperates with the round plate at one end of the reinforcing bolt 19, thereby reducing the ring size of the reinforcing ring 18, so that the sealing ring 17 is completely attached to the outer wall of the receiving tube of the reaction kettle, avoiding the contact of Raney nickel with air during feeding, and the water-sealed Raney nickel is added into the feeding tank 1 through the feeding pipe 14, and then a sufficient amount of inert gas is added into the feeding tank 1 through the feeding pipe 14, then the first control valve 15 is closed to avoid air entering the feeding tank 1, the second drive motor 26 is started, and the second control valve 23 is opened at the same time, so that the drain pipe 22 is in an open state, the second drive motor 26 drives the threaded rod 25 to rotate, and drives the pressing plate 28 to move downward to press the inert gas, thereby extruding the water in the water-sealed Raney nickel, so that it is discharged from the feeding tank 1 through the drain pipe 22, and the drainage situation can be observed through the observation window 16, when the water in the feeding tank 1 is completely discharged, the second control valve 23 is closed, then the first control valve 15 is opened, so that the inert gas is discharged outward from the feeding pipe 14, and then the first drive motor 7 is started to move the baffle 11, so that the Raney nickel in the feeding tank 1 can be fed into the reaction kettle.

[0025] The working principle is that the sealing ring 17 is sleeved on the outside of the receiving tube of the reaction kettle, then the reinforcing bolt 19 is screwed into the threaded hole on the reinforcing ring 18, which cooperates with the round plate at one end of the reinforcing bolt 19, thereby reducing the ring size of the reinforcing ring 18, so that the sealing ring 17 is completely attached to the outer wall of the receiving tube of the reaction kettle, the water-sealed Raney nickel is added into the feeding tank 1 through the feeding pipe 14, and then a sufficient amount of inert gas is added into the feeding tank 1 through the feeding pipe 14, then the first control valve 15 is closed to avoid air entering the feeding tank 1, the second drive motor 26 is started, and the second control valve 23 is opened at the same time, so that the drain pipe 22 is in an open state, the second drive motor 26 drives the threaded rod 25 to rotate, and drives the pressing plate 28 to move downward to press the inert gas, thereby extruding the water in the water-sealed Raney nickel, so that it is discharged from the feeding tank 1 through the drain pipe 22, when the water in the feeding tank 1 is completely discharged, the second control valve 23 is closed, then the first control valve 15 is opened, so that the inert gas is discharged outward from the feeding pipe 14, the first drive motor 7 is started to drive the worm 8 to rotate, and then drive the worm wheel 9 to rotate, thereby driving the two sets of limiting rods 10 and the baffle 11 to rotate through the connecting shaft, so that the baffle 11 moves from the inside of the conveying pipe 2 to the moving groove 3, so that the conveying pipe 2 is in an open state, and the Raney nickel in the feeding tank 1 can enter the reaction kettle through the conveying pipe 2 for use.

[0026] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A Raney nickel feeding device, characterized by: The utility model relates to a feeding tank, the feeding tank is provided with a sealing cover, a feeding pipe, a first control valve, an observation window, a transmission pipe, a sealing ring, a reinforcing ring, a reinforcing bolt, a second support frame, a filter screen, a drain pipe, a second control valve, a third support frame, a threaded rod, a second drive motor, a limiting slot, a pressing plate, a silica gel pad and the like. The utility model relates to a feeding tank, the feeding tank is provided with a sealing cover, a feeding pipe, a first control valve, an observation window, a transmission pipe, a sealing ring, a reinforcing ring, a reinforcing bolt, a second support frame, a filter screen, a drain pipe, a second control valve, a third support frame, a threaded rod, a second drive motor, a limiting slot, a pressing plate, a silica gel pad and the like.

2. A Raney nickel feeding device according to claim 1, characterized in that: The utility model relates to a feeding tank, the feeding tank is provided with a sealing cover, a feeding pipe, a first control valve, an observation window, a transmission pipe, a sealing ring, a reinforcing ring, a reinforcing bolt, a second support frame, a filter screen, a drain pipe, a second control valve, a third support frame, a threaded rod, a second drive motor, a limiting slot, a pressing plate, a silica gel pad and the like.

3. A Raney nickel feeding device according to claim 2, characterized in that: ​ 4. The Raney nickel feeding device according to claim 2, characterized in that: ​ 5. A Raney nickel feeding device according to claim 4, characterized in that: ​ 6. A Raney nickel feeding device according to claim 5, characterized in that: ​

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