Material conveying device for aromatic hydrocarbon ammoxidation catalyst production

Abstract

The utility model discloses a material conveying device for aromatic hydrocarbon ammoxidation catalyst production, which relates to the field of aromatic hydrocarbon ammoxidation catalyst production, and adopts the technical scheme that the material conveying device comprises a material conveying pipe communicated between a feeding groove seat and a discharging pipe, and a motor for driving a spiral conveying paddle in the material conveying pipe to rotate is mounted at the side end of the material conveying pipe; a shell is arranged beside the opening part of the discharging pipe, an electromagnet sharing one switch with the motor is installed on the inner bottom wall of the shell, the surface of the electromagnet is connected with an iron block through a spring, and the surface of the iron block is fixedly connected with a blocking plate. And the iron block starts to reset under the action of the spring, so that the stop plate is driven to reset, the conveying pipe is closed again, part of the raw materials are prevented from falling down due to gravity, and the adding amount of the raw materials is accurately controlled.

Description

Technical Field

[0001] The utility model relates to the field of the production of aromatics ammoxidation catalysts, and more specifically, it relates to a material conveying device for the production of aromatics ammoxidation catalysts. Background Art

[0002] Aromatics ammoxidation catalysts are substances that play a key role in chemical production and are specifically used to promote the oxidation reaction of aromatic compounds with ammonia and oxygen. Such catalysts usually consist of multiple active components and carriers. The active components often include metal elements such as vanadium, molybdenum, and titanium, which interact synergistically to provide the active sites required for the catalytic reaction. Carriers such as alumina and silica provide good dispersion and support for the active components, helping to improve the stability and service life of the catalysts. In the production process of aromatics ammoxidation catalysts, the accurate and efficient conveying of materials is crucial for ensuring production quality and efficiency.

[0003] However, when the traditional material conveying device (screw conveyor) conveys the raw materials of aromatics ammoxidation catalysts into the production equipment, it is difficult to accurately control the added amount. Specifically, when the conveying device is closed (the screw conveyor paddle stops rotating), there will still be some raw materials falling due to gravity, resulting in too much added raw materials and ultimately affecting the production quality of the aromatics ammoxidation catalysts.

[0004] Therefore, in order to solve the above technical problems, this application proposes a material conveying device for the production of aromatics ammoxidation catalysts. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a material conveying device for the production of aromatics ammoxidation catalysts.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A material conveying device for the production of aromatics ammoxidation catalysts, including a conveying pipe connecting the feeding trough seat and the discharging pipe. A motor for driving the internal screw conveyor paddle to rotate is installed on the side end of the conveying pipe. A housing is provided beside the opening part of the discharging pipe. An electromagnet sharing a switch with the motor is installed on the inner bottom wall of the housing, and an iron block is connected to the surface of the electromagnet through a spring. A blocking plate is fixedly connected to the surface of the iron block.

[0007] Preferably, the number of the housings is two, which are fixed to the outer side wall of the conveying pipe through a connecting frame, and the blocking plate is divided into two symmetrical parts, namely split plates. Each single split plate is respectively connected to the spring inside the housing.

[0008] Preferably, guide rails A for the sliding of slider A are fixedly connected to both sides of the housing. The surface of the slider A is fixedly connected to the side end of the blocking plate through an L-shaped plate A to maintain the linear movement of the blocking plate.

[0009] Preferably, a support frame is fixedly connected to the bottom of the feed trough base, and a cast iron counterweight base is fixedly connected to the bottom end of the support frame, so that the support stability is higher.

[0010] Preferably, a guide rail B for the sliding of slider B is fixedly connected to the surface of the support frame. The top end of the slider B is connected to the square frame through an L-shaped plate B. A filter screen is fixedly connected to the bottom of the square frame, which can process the raw material of the aromatics ammoxidation catalyst with unfiltered impurities.

[0011] Preferably, a locking assembly is installed between the side end of the support frame and the surface of the square frame to fix the position of the square frame and prevent the square frame from shifting due to the vibration of the device.

[0012] Preferably, the locking assembly includes a connecting plate fixed to both sides of the side end of the support frame with through holes opened. Screws that can pass through the through holes are fixedly connected to the surface of the square frame, and nuts are threadedly connected to the outer side walls of the screws.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. When the motor of the present utility model is turned off, the electromagnet is also turned off, and no longer generates an adsorption force on the iron block. The iron block starts to reset under the action of the spring, thereby driving the reset of the blocking plate and closing the feed pipe again, avoiding the continued fall of some raw materials due to gravity, so as to accurately control the amount of raw materials added, and thus solve the problem of difficult accurate control of the added amount in the background art;

[0015] 2. The present utility model pushes the movement of the square frame, moves the square frame directly above the feed trough base, and fixes the square frame directly above the feed trough base through the locking assembly. In this way, when feeding the feed trough base, impurities can be filtered through the filter screen in the square frame;

[0016] 3. The cast iron counterweight base of the present utility model is made of cast iron material, which has a high density and is heavier than other materials under the same volume, and can stably support the conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

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

[0019] Figure 2 is a schematic diagram of the specific side structure of the present utility model;

[0020] Figure 3 is a magnified view of the partial structure A of the present utility model Figure 1 ;

[0021] Figure 4 is a schematic diagram of the specific structure of the connecting plate surface in the present utility model

[0022] Figure 5 is a schematic diagram of the specific structure inside the housing in the present utility model

[0023] In the figure: 1, material conveying pipe; 2, feed trough base; 3, discharge pipe; 4, motor; 5, housing; 6, electromagnet; 7, spring; 8, iron block; 9, baffle plate; 91, dividing plate; 10, connecting frame; 11, guide rail A; 12, slider A; 13, L-shaped plate A; 14, support frame; 15, cast iron counterweight base; 16, locking assembly; 161, connecting plate; 162, through hole; 163, screw; 164, nut; 17, guide rail B; 18, slider B; 19, L-shaped plate B; 20, square frame; 21, filter screen Specific embodiments

[0024] As Figures 1-5 shown, the present utility model provides a material conveying device for the production of an aromatics ammoxidation catalyst, including a material conveying pipe 1 connecting the feed trough base 2 and the discharge pipe 3. A motor 4 for driving the rotation of the feeding screw propeller inside it is installed on the side end of the material conveying pipe 1. A housing 5 is provided beside the opening part of the discharge pipe 3. An electromagnet 6 sharing a switch with the motor 4 is installed on the inner bottom wall of the housing 5. The surface of the electromagnet 6 is connected to an iron block 8 through a spring 7, and a baffle plate 9 is fixedly connected to the surface of the iron block 8

[0025] Put the raw materials of the aromatics ammoxidation catalyst into the feed trough base 2. After completion, turn on the motor 4 through the switch. Drive the rotation of the feeding screw propeller through the motor 4, suck the raw materials in the feed trough base 2 into the discharge pipe 3 through the material conveying pipe 1, and finally discharge from the discharge pipe 3. When turning on the motor 4, the electromagnet 6 is also turned on. The battery iron generates an adsorption force on the iron block 8, so that the iron block 8 moves towards the electromagnet 6 direction, while squeezing the spring 7. The iron block 8 also drives the movement of the baffle plate 9 to open the opening at the bottom of the discharge pipe 3, so as to ensure the normal discharge of the discharge pipe 3. On the contrary, when turning off the motor 4 (turning off the device), the electromagnet 6 also turns off, no longer generating an adsorption force on the iron block 8. The iron block 8 starts to reset under the action of the spring 7, thus driving the reset of the baffle plate 9 to close the material conveying pipe 1 again, avoiding part of the raw materials from falling due to gravity, so as to accurately control the amount of raw materials added

[0026] Furthermore, the number of the shells 5 is two, which are fixed to the outer side wall of the feed pipe 1 through the connecting frame 10, and the baffle 9 is divided into two symmetrical parts, namely the sub - plates 91. The single sub - plate 91 is respectively connected to the spring 7 inside the shell 5. In this way, the baffle 9 is divided into two sub - plates 91, reducing the moving distance, enabling the electromagnet 6 to adsorb and move the iron block 8 faster, and the spring 7 can also reset the sub - plate 91 faster, so as to more accurately control the addition of raw materials. Moreover, guide rails A11 for the slider A12 to slide are fixedly connected to both sides of the shell 5, and the surface of the slider A12 is fixed to the side end of the baffle 9 through the L - shaped plate A13. In this way, when the baffle 9 moves, it will drive the slider A12 to move through the L - shaped plate A13, and the slider A12 slides along the guide rail A11 to maintain the linear movement of the baffle 9, thus preventing it from shifting due to gravity and being unable to seal the feed pipe 1.

[0027] A support frame 14 is fixedly connected to the bottom of the feed trough base 2, and a cast iron counterweight base 15 is fixedly connected to the bottom end of the support frame 14. The cast iron counterweight base 15 is made of cast iron material, which has a high density and is heavier than other materials under the same volume, and can stably support the conveying device.

[0028] Currently, for some raw materials of the aromatics ammoxidation catalyst, some impurities are directly transported without filtration (for some small - scale enterprises, the raw materials are purchased, and generally, raw material filtration equipment is not set up separately, and they are generally directly added to the conveying device for transportation). This undoubtedly reduces the production quality of the aromatics ammoxidation catalyst. Therefore, the present utility model is further improved, and the following is the improvement content: A guide rail B17 for the slider B18 to slide is fixedly connected to the surface of the support frame 14. The top end of the slider B18 is connected to the square frame 20 through the L - shaped plate B19. A filter screen 21 is fixedly connected to the bottom of the square frame 20. A locking assembly 16 is installed between the side end of the support frame 14 and the surface of the square frame 20 to fix the position of the square frame 20.

[0029] That is, during use, push the square frame 20 to move it directly above the feed trough base 2, and fix the square frame 20 directly above the feed trough base 2 through the locking assembly 16. In this way, when adding materials to the feed trough base 2, the impurities can be filtered through the filter screen 21 in the square frame 20. Usually, the square frame 20 will vibrate following the vibration of the conveying device to reduce blockage. When the impurities in the raw materials have been filtered and then transported, the fixation of the square frame 20 by the locking assembly 16 can be released, and then push the square frame 20 to move it to the side of the feed trough base 2, and normal raw material addition operations can be carried out.

[0030] The present utility model also provides the specific structure of the locking assembly 16: The locking assembly 16 includes a connecting plate 161 fixed to both side surfaces of the side end of the support frame 14 and having through holes 162 formed therein. Screws 163 that can pass through the through holes 162 are fixedly connected to the surfaces of the square frames 20. Nuts 164 are threadedly connected to the outer side walls of the screws 163.

[0031] When the square frame 20 reaches directly above the connection groove seat, the screws 163 on the square frame 20 also pass through the through holes 162 on the connecting plate 161. Then, the nut 164 is rotated clockwise to install the nut 164 on the screw 163. The nut 164 slowly abuts against the surface of the connecting plate 161 to fix the square frame 20 and the connecting plate 161, thereby fixing the position of the square frame 20. Conversely, the nut 164 is rotated counterclockwise to remove the nut 164, and the fixation of the square frame 20 can be released.

[0032] The above is only a preferred embodiment of the present utility model and does not impose any form of limitation on the present utility model. Any ordinary technician in the industry can smoothly implement the present utility model according to the illustrations in the specification and the above description. However, any equivalent changes such as minor modifications, decorations, and evolutions made by those skilled in the art within the scope of the technical solution of the present utility model using the technical content disclosed above are equivalent embodiments of the present utility model. At the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A material conveying device for producing aromatic hydrocarbon ammoxidation catalysts, comprising a conveying pipe (1) connecting a feed tank seat (2) and a discharge pipe (3), wherein a motor (4) for driving a feed screw propeller inside the conveying pipe (1) is installed at a side end thereof, wherein: A shell (5) is provided beside the opening of the discharge pipe (3), an electromagnet (6) sharing a switch with the motor (4) is installed on the inner bottom wall of the shell (5), and the surface of the electromagnet (6) is connected to an iron block (8) via a spring (7), and a blocking plate (9) is fixedly connected to the surface of the iron block (8).

2. The material conveying device for producing an aromatic ammoxidation catalyst according to claim 1, characterized in that: The shells (5) are two in number and are fixed to the outer wall of the feed pipe (1) via a connecting frame (10), and the blocking plate (9) is divided into two symmetrical parts, namely, split plates (91). The single split plates (91) are respectively connected to the springs (7) inside the shells (5).

3. The material conveying device for producing an aromatic hydrocarbon ammoxidation catalyst according to claim 1, characterized in that: Guide rails A (11) for sliding a slider A (12) are fixedly connected to both sides of the housing (5), and the surface of the slider A (12) is fixed to the side end of the blocking plate (9) via an L-shaped plate A (13).

4. The material conveying device for producing an aromatic hydrocarbon ammoxidation catalyst according to claim 1, characterized in that: The bottom of the feed trough seat (2) is fixedly connected to a support frame (14), and the bottom end of the support frame (14) is fixedly connected to a cast iron counterweight base (15).

5. The material conveying device for producing an aromatic ammoxidation catalyst according to claim 4, characterized in that: A guide rail B (17) for a slider B (18) to slide on is fixedly connected to the surface of the support frame (14); the top of the slider B (18) is connected to a square frame (20) via an L-shaped plate B (19); and a filter screen (21) is fixedly connected to the bottom of the square frame (20).

6. The material conveying device for producing an aromatic hydrocarbon ammoxidation catalyst according to claim 5, characterized in that: A locking assembly (16) is installed between the side end of the support frame (14) and the surface of the square frame (20) to fix the position of the square frame (20).

7. The material conveying device for producing an aromatic ammoxidation catalyst according to claim 6, characterized in that: The locking assembly (16) comprises a connecting plate (161) fixed to the surfaces of both sides of the support frame (14) and having through holes (162). The surface of the square frame (20) is fixedly connected with a screw rod (163) that can pass through the through holes (162). The outer wall of the screw rod (163) is threadedly connected with a nut (164).

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