Dust-free particle screening device for molybdenum trioxide production

Abstract

The utility model discloses a dust-free type particle screening device for molybdenum trioxide production, which comprises a shaftless drum screen body, the lower part of the shaftless drum screen body is respectively provided with a plurality of stages of collecting hoppers corresponding to different screen sections, the top of the shaftless drum screen is buckled with a shell, the two sides of the shell are connected with negative pressure dust collecting components through air guide pipes, and the negative pressure dust collecting components are connected with the shaftless drum screen body through air guide pipes. The utility model relates to the technical field of molybdenum trioxide production, an existing shaftless drum screen body is improved, a shell is additionally arranged on the upper portion of the shaftless drum screen body, an operation space on the upper portion of the shaftless drum screen body is wrapped, flying dust generated in the operation process is effectively avoided, and the service life of the shaftless drum screen is prolonged. And meanwhile, dust generated in the screening operation process is collected and filtered in cooperation with a negative pressure dust collecting assembly, and scattered raw material powder is recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of molybdenum trioxide production, in particular to a dust-free particle screening device for molybdenum trioxide production. Background Technique

[0002] Molybdenum trioxide is an important industrial raw material, which is widely used in the fields of electronics, optics, catalysis, etc.; at present, in the industrial production process, the requirements for the particle size, uniformity, etc. of molybdenum trioxide raw materials are increasing day by day. Before the raw materials are used, screening devices need to be used for screening to meet industrial requirements. When the existing molybdenum trioxide particle screening equipment is in use, large-particle powder materials are easily stuck in the sieve holes, and it is difficult to quickly dredge the blocked sieve holes, resulting in a greatly reduced screening efficiency of the equipment, affecting the normal use of the equipment, reducing the practicability of the equipment. In addition, the open screening equipment will generate a large amount of dust, affecting the environmental quality of the operation area, and at the same time, it is impossible to recycle the dust in the gas, causing certain resource waste. In view of this, in-depth research on the above problems has led to the generation of this case. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a dust-free particle screening device for molybdenum trioxide production, which solves the problems raised in the background technique.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A dust-free particle screening device for molybdenum trioxide production, including a shaftless drum screen body. A plurality of multi-stage aggregate hoppers are respectively arranged at the lower part of the shaftless drum screen body corresponding to different sieve sections. A housing is buckled on the top of the shaftless drum screen. Negative pressure dust collection components are connected to both sides of the housing through air guide pipes. A notch is opened on the side of the housing. A feeding hopper is arranged along an inclined direction at the notch position. One end of the feeding hopper extends into the inner side of the shaftless drum screen body. An elastic plugging removal component is arranged on the top of the housing;

[0005] The elastic plugging removal component includes a mounting seat, a lifting adjustment member, an elastic connecting member, a bracket and a hard long rod brush. A rectangular notch is opened on the upper end surface of the housing. The mounting seat is assembled and connected to the rectangular notch position. The lifting adjustment member is arranged on the mounting seat. The moving end of the lifting adjustment member penetrates through the mounting seat and extends into the housing. The elastic connecting member is arranged at the lower end of the lifting adjustment member. The bracket is installed at the lower end of the elastic connecting member. The hard long rod brush is assembled and connected to the lower end surface of the bracket.

[0006] The above-mentioned lifting adjustment member includes a support, a cylinder and a moving seat. The support is arranged on the mounting seat. The cylinder is arranged vertically on the support and the telescopic end penetrates through the mounting seat and extends into the housing. The moving seat is arranged on the telescopic end of the cylinder. Guide members are symmetrically arranged on both sides of the cylinder.

[0007] The above-mentioned guiding member includes a limiting sleeve and a guide rod. The limiting sleeve is arranged on the mounting seat and symmetrically arranged on both sides of the cylinder. The guide rod is slidably inserted into the limiting sleeve and its lower end is connected to the moving seat.

[0008] The above-mentioned elastic connecting member includes a fixed seat and a compression spring. The fixed seat is assembled and connected to the lower end of the moving seat. The upper end of the compression spring is connected to the fixed seat, and the lower end is fixedly connected to the bracket.

[0009] The above-mentioned negative pressure dust collection assembly includes an air draft pipe, a fan, and a cyclone dust collector. The side wall of the air draft pipe is communicated with the air guide pipe. The fan is arranged at one end of the air draft pipe and is communicated with the air inlet of the cyclone dust collector. The air outlet end of the cyclone dust collector is connected to the bag filter.

[0010] A transparent observation window is arranged on the front side wall of the above-mentioned housing.

[0011] The utility model provides a dust-free particle screening device for molybdenum trioxide production, which has the following beneficial effects: The dust-free particle screening device for molybdenum trioxide production improves the existing shaftless drum screen body, adds a housing above the shaftless drum screen body to cover the working space above the shaftless drum screen body, effectively avoids the dust generated during the operation, and at the same time cooperates with the negative pressure dust collection assembly to collect and filter the dust generated during the screening operation, realizes the recovery of the scattered raw material powder, and at the same time an elastic plugging removal assembly is arranged on the top of the housing, which can realize the reverse plugging removal of the screen of the shaftless drum screen body, clear the large-particle materials stuck in the screen holes, has a simple structure and a high degree of automation, and can effectively improve the overall screening operation efficiency. Brief Description of the Drawings

[0012] Figure 1 It is a partial sectional axonometric structure schematic diagram of the dust-free particle screening device for molybdenum trioxide production described in the utility model.

[0013] Figure 2 It is a partial axonometric structure schematic diagram of the dust-free particle screening device for molybdenum trioxide production described in the utility model.

[0014] Figure 3 For the utility model Figure 2 is a schematic side sectional structure diagram.

[0015] Figure 4 It is a sectional structure schematic diagram of the elastic plugging removal assembly described in the utility model.

[0016] Figure 5 It is a top view structure schematic diagram of the dust-free particle screening device for molybdenum trioxide production described in the utility model.

[0017] In the figure: 1. Shaftless drum screen body; 2. Aggregate hopper; 3. Housing; 4. Feeding hopper; 5. Mounting seat; 6. Bracket; 7. Hard long rod brush; 8. Support; 9. Cylinder; 10. Moving seat; 11. Limiting sleeve; 12. Guide rod; 13. Fixed seat; 14. Compression spring; 15. Induction air duct; 16. Fan; 17. Cyclone dust collector; 18. Bag dust collector. Detailed implementation manner

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: Combine the description with the attached drawings Figures 1-5It can be seen that in view of the problems in the prior art that when a molybdenum trioxide particle screening device is in use, it is difficult to quickly dredge the blocked sieve holes, resulting in a significant reduction in the screening efficiency of the device and a large amount of dust generated during operation, a dust-free particle screening device for molybdenum trioxide production is specifically designed, including a shaftless drum screen body 1. Multiple levels of aggregate hoppers 2 are respectively arranged below the shaftless drum screen body 1 corresponding to different sieve sections. A housing 3 is buckled on the top of the shaftless drum screen. The two sides of the housing 3 are connected with a negative pressure dust collection component through air ducts. A notch is opened on the side of the housing 3, and a material guiding hopper 4 is arranged along the inclined direction at the notch position. One end of the material guiding hopper 4 extends into the inner side of the shaftless drum screen body 1. An elastic clogging removal component is arranged on the top of the housing 3; among them, the elastic clogging removal component includes a mounting seat 5, a lifting adjustment part, an elastic connecting part, a bracket 6 and a rigid long rod brush 7. A rectangular notch is opened on the upper end surface of the housing 3, and the mounting seat 5 is assembled and connected at the rectangular notch position. The lifting adjustment part is arranged on the mounting seat 5. The moving end of the lifting adjustment part penetrates through the mounting seat 5 and extends into the housing 3. The elastic connecting part is arranged at the lower end of the lifting adjustment part. The bracket 6 is installed at the lower end of the elastic connecting part. The rigid long rod brush 7 is assembled and connected to the lower end surface of the bracket 6. Among them, the lifting adjustment part includes a support 8, a cylinder 9 and a moving seat 10. The support 8 is arranged on the mounting seat 5. The cylinder 9 is arranged vertically on the support 8 and its telescopic end penetrates through the mounting seat 5 and extends into the housing 3. The moving seat 10 is arranged on the telescopic end of the cylinder 9. Guide parts are symmetrically arranged on both sides of the cylinder 9; the above-mentioned guide parts include a limit sleeve 11 and a guide rod 12. The limit sleeve 11 is arranged on the mounting seat 5 and is symmetrically arranged along both sides of the cylinder 9. The guide rod 12 is slidably inserted into the limit sleeve 11 and its lower end is connected to the moving seat 10. Among them, the elastic connecting part includes a fixed seat 13 and a compression spring 14. The fixed seat 13 is assembled and connected to the lower end of the moving seat 10. The upper end of the compression spring 14 is connected to the fixed seat 13 and the lower end is fixedly connected to the bracket 6. The existing shaftless drum screen body 1 is improved. A housing 3 is added to the upper part of the shaftless drum screen body 1 to cover the working space above the shaftless drum screen body 1, effectively avoiding the dust generated during the operation. At the same time, it cooperates with the negative pressure dust collection component to collect and filter the dust generated during the screening operation, realizing the recovery of the scattered raw material powder. At the same time, an elastic clogging removal component is arranged on the top of the housing 3. During the screening operation, the position of the moving seat 10 is reciprocally adjusted by the cylinder 9, and then the moving seat 10 moves up and down under the limiting action of the guide rods 12 on both sides, so that the rigid long rod brush 7 at the lower part of the bracket 6 is inserted into the sieve holes of the drum screen. With the movement of the drum screen, the reverse clogging removal of the sieve mesh of the shaftless drum screen body 1 is realized, and the large-particle materials stuck in the sieve holes are cleared and dropped. The structure is simple and the degree of automation is high, which can effectively improve the overall screening operation efficiency. Among them, the setting of the compression spring 14 can effectively reduce the rigid contact between the rigid brush and the drum screen and improve the service life of the rigid brush.

[0020] In the specific implementation process, as a preferred setting, the above-mentioned negative pressure dust collection assembly includes an air draft pipe 15, a fan 16, and a cyclone dust collector 17. The side wall of the air draft pipe 15 is communicated with the air guide pipe. The fan 16 is arranged at one end of the air draft pipe 15 and is communicated with the air inlet of the cyclone dust collector 17. The air outlet end of the cyclone dust collector is connected to the bag filter 18. During use, the fan 16 and the bag filter 18 are started, and by using the negative pressure air flow, the molybdenum trioxide raw material dust in the internal space of the housing 3 is sucked into the cyclone dust collector 17 through the air guide pipe and the air draft pipe 15. The cyclone dust collector 17 is used to separate the large-particle materials in the air flow, and the separated gas and fine powder then enter the bag filter 18, and are intercepted and recycled by the bag filter 18.

[0021] In the specific implementation process, as a preferred setting, a transparent observation window is provided on the front side wall surface of the above-mentioned housing 3, which is convenient for the staff to observe the operation of the shaftless drum screen body 1 in real time.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-free particle screening device for molybdenum trioxide production, comprising a shaftless drum screen body, characterized in that: The lower part of the shaftless drum screen body is respectively provided with multi-stage collecting hoppers corresponding to different screen segments, the top of the shaftless drum screen is buckled with a shell, both sides of the shell are connected with negative pressure dust collecting components through air guide pipes, a notch is opened on the side of the shell, a guide hopper is arranged along the inclined direction at the position of the notch, one end of the guide hopper extends into the inner side of the shaftless drum screen body, and an elastic clearing component is arranged on the top of the shell; The elastic clearing assembly includes a mounting seat, a lifting adjustment member, an elastic connecting member, a bracket and a hard long-pole brush. A rectangular notch is provided on the upper end surface of the shell. The mounting seat is assembled and connected to the rectangular notch. The lifting adjustment member is arranged on the mounting seat. The movable end of the lifting adjustment member passes through the mounting seat and extends into the shell. The elastic connecting member is arranged on the lower end of the lifting adjustment member. The bracket is installed at the lower end of the elastic connecting member. The hard long-pole brush is assembled and connected to the lower end surface of the bracket.

2. A dust-free particle screening device for molybdenum trioxide production according to claim 1, characterized in that: The lifting and adjusting member includes a support, a cylinder and a movable seat. The support is arranged on the mounting seat. The cylinder is arranged on the support in a vertical direction and the telescopic end passes through the mounting seat and extends into the shell. The movable seat is arranged on the telescopic end of the cylinder. Guide members are symmetrically arranged on both sides of the cylinder.

3. A dust-free particle screening device for molybdenum trioxide production according to claim 2, characterized in that: The guide member comprises a limiting sleeve and a guide rod. The limiting sleeve is arranged on the mounting seat and symmetrically arranged along both sides of the cylinder. The guide rod is slidably inserted in the limiting sleeve and the lower end is connected to the moving seat.

4. A dust-free particle screening device for molybdenum trioxide production according to claim 2, characterized in that: The elastic connecting member comprises a fixed seat and a compression spring. The fixed seat is assembled and connected to the lower end of the movable seat. The upper end of the compression spring is connected to the fixed seat, and the lower end is fixedly connected to the bracket.

5. The dust-free particle screening device for molybdenum trioxide production according to claim 1, characterized in that: The negative pressure dust collecting assembly includes an air duct, a fan and a cyclone dust collector. The side wall of the air duct is connected to the air guide pipe. The fan is arranged at one end of the air duct and is connected to the air inlet of the cyclone dust collector. The air outlet end of the cyclone dust collector is connected to the bag dust collector.

6. A dust-free particle screening device for molybdenum trioxide production according to any one of claims 1 to 5, characterized in that: A transparent observation window is arranged on the front wall surface of the shell.

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