Particle screening device for molybdenum oxide production

Abstract

The utility model discloses a particle screening device for molybdenum oxide production, which comprises a main body, a screening cavity is arranged in the main body, two screening plates are arranged in the screening cavity and are both in sliding fit with the screening cavity, and the particle screening device further comprises a transmission cavity which is arranged on one side in the main body, and rotating rods are arranged on the upper sides of the interiors of the transmission cavities, one ends of the rotating rods penetrate through the transmission cavities and extend into the screening cavity, the ends, located in the screening cavity, of the rotating rods are rotationally connected with the screening cavity, and two cams are arranged on the outer walls of the ends, located in the screening cavity, of the rotating rods. According to the particle screening device for molybdenum oxide production, the phenomenon of dust dissipation is effectively avoided, the working environment is prevented from being polluted, the body health of operators is prevented from being harmed, meanwhile, the collection condition does not need to be manually observed, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molybdenum oxide production, in particular to a particle screening device for molybdenum oxide production. Background Art

[0002] Molybdenum oxide, with the chemical formula MoO3, is an inorganic compound, usually in the form of white, light green or light yellow crystalline powder, with a high melting point and low vapor pressure. It is stable in the air, slightly soluble in water, and produces molybdic acid. Molybdenum oxide is an important intermediate product in the molybdenum purification process. Due to its special structure and high electrochemical activity, it is widely used in electrochromic, photochromic, gas sensitive elements, catalysts, sensors and other fields. In the production process of molybdenum oxide, raw materials and intermediate products often need to be graded through screening devices to ensure product quality and uniformity.

[0003] The existing Chinese patent with announcement number CN220991791U discloses a particle screening device, including: a frame, provided with a cavity, the frame is provided with a plurality of sieve nets spaced apart in the vertical direction, the sieve nets can vibrate back and forth in the vertical direction, and the sieve holes on the plurality of sieve nets gradually decrease from top to bottom; a guide cover, detachably connected between two of the sieve nets, the guide cover is provided with a conical cavity with a large mouth facing upward, the guide cover is used to guide the particles to be selected to rotate along the wall of the conical cavity; a discharge piece, provided on the frame, the discharge piece is provided with a discharge channel connected to the conical cavity, and the discharge channel is used to discharge the particles to be selected.

[0004] Although the above scheme is conducive to improving the screening effect of the selected particles, during the screening process, friction, collision and extrusion will occur between the material particles and between the particles and the screen, causing some fine particles to be lifted up and suspended in the air, forming dust, which is easy to escape from the feed inlet, polluting the working environment and endangering the health of the operator. At the same time, the screening device lacks the function of discharging reminder, which affects the convenience of use. Therefore, it does not meet the existing needs. In this regard, we propose a particle screening device for molybdenum oxide production. Utility Model Content

[0005] The purpose of the utility model is to provide a particle screening device for molybdenum oxide production, so as to solve the problems proposed in the above-mentioned background technology that dust escape during screening of the particle screening device easily pollutes the working environment and lacks the function of discharge reminder, which affects the convenience of use.

[0006] To achieve the above object, the utility model provides the following technical solution: a particle screening device for molybdenum oxide production, comprising a main body, a screening cavity is provided inside the main body, two screening plates are provided inside the screening cavity, and the screening plates are both slidably matched with the screening cavity;

[0007] It also includes a transmission cavity, which is opened on one side of the main body, and a rotating rod is arranged on the upper side of the transmission cavity, one end of the rotating rod passes through the transmission cavity and extends to the inside of the screening cavity, and the end of the rotating rod located in the screening cavity is rotatably connected to the screening cavity, and the outer wall of the end of the rotating rod located in the screening cavity is provided with two cams;

[0008] It also includes a weighing sensor, which is installed at the middle position of the lower end of the screening chamber, and a collection box is provided at the upper end of the weighing sensor, and the collection box and the weighing sensor are in close contact;

[0009] It also includes a dust collecting chamber, which is opened on the upper side of one side of the interior of the main body, and a dustproof net is arranged on one side of the interior of the dust collecting chamber.

[0010] Preferably, a motor is installed on one side of the lower end of the transmission cavity, and the output end of the motor is connected to one of the rotating rods through a coupling.

[0011] Preferably, the ends of the rotating rod located inside the transmission cavity are connected by a transmission belt.

[0012] Preferably, a PLC controller is installed on the upper side of the front end of the main body, and the input end of the PLC controller is electrically connected to the output end of the weighing sensor, and an alarm is installed on the front side of the upper end of the main body, and the input end of the alarm is electrically connected to the output end of the PLC controller.

[0013] Preferably, fixed plates are provided on the front and rear sides below the screening plate, and the fixed plates are welded and fixed to the screening cavity, and return springs are installed on both sides of the upper end of the fixed plate, and the upper ends of the return springs are connected to the screening plate.

[0014] Preferably, an exhaust fan is provided on one side of the upper end of the main body, and an annular cavity is opened on the upper side outside the screening cavity. The annular cavity and the screening cavity are connected through a plurality of through holes distributed in a rectangular array, and the dust collecting cavity is connected to the exhaust fan and the annular cavity through a connecting pipe.

[0015] Preferably, a rotating door is installed on the lower side of the front end of the main body, and a sealing door is installed on one side of the upper end of the main body.

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

[0017] 1. The utility model opens a dust collecting chamber on one side of the upper end of the main body. When screening is performed, the vacuum pump can be started to extract the air in the dust collecting chamber, making the dust collecting chamber have a negative pressure. At this time, the annular chamber can generate suction through the connecting pipe, and the dust escaped from the feed inlet enters the annular chamber through the through hole. Sometimes the dust enters the dust collecting chamber through the connecting pipe, and the dust can be intercepted by the dustproof net, so that the dust can be collected in the dust collecting chamber, which effectively avoids the phenomenon of dust escape, avoids pollution of the working environment, and avoids harm to the health of the operator.

[0018] 2. The utility model installs a weighing sensor at the lower end of the screening chamber. The qualified molybdenum oxide raw materials after screening will enter the collection box. The weighing sensor can weigh the collection box and transmit the weighing data to the PLC controller. The operator can set the standard value in advance. When the standard value is met, the PLC controller will activate the alarm, thereby attracting nearby operators to perform the discharge operation without manual observation, which improves the convenience of operation.

[0019] 3. The utility model opens a transmission cavity on one side of the main body, and the raw materials of molybdenum oxide can be screened by the screening plate. When screening, the motor in the transmission cavity is started, and the motor drives the two rotating rods to rotate synchronously through the transmission belt. The rotation of the rotating rod drives the cam to move the screening plate up, and then the screening plate can be moved down under the elastic action of the reset spring, so that the screening plate can be moved up and down regularly, which effectively avoids the retention or blockage of particles on the screen and significantly improves the screening efficiency and pass rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a front view schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a side view schematic diagram of the internal structure of the utility model;

[0023] Figure 4 For the utility model Figure 2 A partial enlarged view of area A.

[0024] In the figure: 1. main body; 2. PLC controller; 3. alarm; 4. screening chamber; 5. screening plate; 6. reset spring; 7. fixed plate; 8. transmission chamber; 9. rotating rod; 10. cam; 11. motor; 12. transmission belt; 13. weighing sensor; 14. collecting box; 15. annular chamber; 16. through hole; 17. dust collecting chamber; 18. dustproof net; 19. connecting pipe; 20. vacuum pump; 21. rotating door; 22. sealing door. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-4 The utility model provides a technical solution: a particle screening device for molybdenum oxide production, comprising a main body 1, a screening chamber 4 is provided inside the main body 1, two screening plates 5 are provided inside the screening chamber 4, and the screening plates 5 are slidably matched with the screening chamber 4;

[0027] It also includes a transmission cavity 8, which is opened on one side of the main body 1, and a rotating rod 9 is arranged on the upper side of the transmission cavity 8, one end of the rotating rod 9 passes through the transmission cavity 8 and extends to the inside of the screening cavity 4, and the end of the rotating rod 9 located inside the screening cavity 4 is rotatably connected to the screening cavity 4, and the outer wall of the end of the rotating rod 9 located inside the screening cavity 4 is provided with two cams 10;

[0028] It also includes a weighing sensor 13, which is installed at the middle position of the lower end of the screening chamber 4. A collection box 14 is provided at the upper end of the weighing sensor 13, and the collection box 14 is fitted with the weighing sensor 13;

[0029] The main body 1 further comprises a dust collecting chamber 17 which is opened on the upper side of one side inside the main body 1 . A dustproof net 18 is arranged on one side inside the dust collecting chamber 17 .

[0030] When in use, the raw materials are screened through the screening chamber 4 in the main body 1. The screening plate 5 is controlled by the PLC controller 2, and the motor 11 drives the rotating rod 9 and the cam 10 to achieve regular up and down movement to avoid particle blockage and improve screening efficiency. At the same time, the vacuum fan 20 cooperates with the dust-proof net 18 through the connecting pipe 19 and the dust collecting chamber 17 to effectively collect the dust generated during the screening process and reduce environmental pollution. The weighing sensor 13 monitors the weight of the raw materials in the collection box 14 in real time. When the preset standard is reached, the PLC controller 2 triggers the alarm 3 to remind the discharge. The overall operation is convenient, and the discharge and dust cleaning are achieved through the rotating door 21 and the sealing door 22, which improves production efficiency and operational convenience.

[0031] See also Figure 2 A motor 11 is installed on one side of the lower end of the transmission cavity 8. The output end of the motor 11 is connected to one of the rotating rods 9 through a coupling. The motor 11 can directly and efficiently drive the rotating rod 9 to rotate, reducing energy loss during power transmission.

[0032] See also Figure 2 The rotating rod 9 is located at one end of the transmission cavity 8 and is connected by a transmission belt 12. The transmission belt 12 realizes the synchronous and smooth rotation between the two rotating rods 9 with its flexibility and durability, avoiding the mechanical wear and noise problems that may be caused by direct rigid connection;

[0033] See also Figure 1 A PLC controller 2 is installed on the upper side of the front end of the main body 1, and the input end of the PLC controller 2 is electrically connected to the output end of the weighing sensor 13. An alarm 3 is installed on the front side of the upper end of the main body 1, and the input end of the alarm 3 is electrically connected to the output end of the PLC controller 2. When in use, once the weight of the raw material reaches the preset standard, the PLC controller 2 can quickly start the alarm 3 to sound an alarm, reminding the operator to discharge the material in time;

[0034] See also Figure 2 and Figure 3 , the front and rear sides below the screening plate 5 are both provided with fixing plates 7, and the fixing plates 7 are both welded and fixed to the screening chamber 4, and the upper ends of the fixing plates 7 are both installed with return springs 6, and the upper ends of the return springs 6 are both connected to the screening plate 5, and the screening plate 5 can be moved downward by the elastic action of the return springs 6, and the screening plate 5 can be moved up and down regularly in cooperation with the cam 10, so as to effectively prevent the problems of particle retention and blockage in the screening process, and improve the screening efficiency and pass rate;

[0035] See also Figure 1 and Figure 2 A vacuum pump 20 is provided on one side of the upper end of the main body 1, and an annular cavity 15 is provided on the upper side of the outside of the screening cavity 4. The annular cavity 15 is connected to the screening cavity 4 through a plurality of through holes 16 distributed in a rectangular array. The dust collecting cavity 17 is connected to the vacuum pump 20 and the annular cavity 15 through a connecting pipe 19. The vacuum pump 20 is connected to the dust collecting cavity 17 and the annular cavity 15 through the connecting pipe 19, which provides power support for dust collection, can effectively suck the dust generated during the screening process into the dust collecting cavity 17 for centralized treatment, and avoids the harm of dust escape to the working environment and the health of operators;

[0036] See also Figure 1 A revolving door 21 is installed on the lower side of the front end of the main body 1, and a sealing door 22 is installed on one side of the upper end of the main body 1. The setting of the revolving door 21 is convenient for the operator to perform discharging operations when necessary, thereby improving the flexibility and convenience of operation. The setting of the sealing door 22 enables the operator to easily open the sealing door to clean the dust, thereby ensuring the long-term stable operation of the equipment and the safety of use.

[0037] Working principle: when in use, the raw materials for molybdenum oxide production are added into the screening chamber 4 from the feed port in the upper end of the main body 1, and the raw materials will be screened through the two screening plates 5 in turn by the principle of gravity. The motor 11 is started, and the motor 11 drives one of the rotating rods 9 to rotate through the coupling, and the rotating rod 9 drives the other rotating rod 9 to rotate synchronously through the transmission belt 12. When the two rotating rods 9 rotate, the cam 10 is driven to rotate synchronously, so that the screening plate 5 can be lifted up regularly. When the screening plate 5 is lifted up, the reset spring 6 is stretched. When the cam 10 does not lift the screening plate 5, the screening plate 5 can be moved down under the elastic recovery action of the reset spring 6, so that the screening plate 5 can move up and down regularly, effectively avoiding the retention or blockage of particles on the screen, and significantly improving the screening efficiency and pass rate. When screening, the vacuum pump 20 is started, and the vacuum pump 20 extracts the air in the dust collecting chamber 17 through one of the connecting pipes 19, so that the dust collecting chamber 17 is under negative pressure, and the dust collecting chamber 17 is under negative pressure through another connecting pipe. 19 can make the annular cavity 15 generate suction. When dust escapes from the upper end of the screening cavity 4, it will enter the annular cavity 15 through the through hole 16, and the dust can be sucked into the dust collecting cavity 17 through the connecting pipe 19. The dust can be intercepted by the dustproof net 18, so that the dust is intercepted in the dust collecting cavity 17, so that the dust can be effectively collected, and the pollution of the working environment caused by dust escape can be avoided, and the health of the operator can be avoided. The operator can take out the dust by opening the sealing door 22. It is easy to use. The qualified raw materials will fall into the collection box 14, and the weighing sensor 13 will weigh the collection box 14 and transmit the weighing data to the PLC controller 2. The operator can pre-set the standard value of the discharge. When the standard value is met, the PLC controller 2 will start the alarm 3. The alarm 3 emits an alarm sound to attract nearby operators. The discharge is carried out by opening the rotating door 21 without manual observation, which improves the convenience of operation.

[0038] 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.

Claims

1. A particle screening device for molybdenum oxide production, comprising a main body (1), wherein a screening chamber (4) is provided inside the main body (1), wherein two screening plates (5) are provided inside the screening chamber (4), and the screening plates (5) are both slidably matched with the screening chamber (4), characterized in that: It also comprises a transmission cavity (8) which is opened on one side of the interior of the main body (1); a rotating rod (9) is arranged on the upper side of the interior of the transmission cavity (8); one end of the rotating rod (9) passes through the transmission cavity (8) and extends to the interior of the screening cavity (4); one end of the rotating rod (9) located inside the screening cavity (4) is rotatably connected to the screening cavity (4); and two cams (10) are arranged on the outer wall of one end of the rotating rod (9) located inside the screening cavity (4); It also includes a weighing sensor (13) which is installed at the middle position of the lower end of the screening chamber (4); a collecting box (14) is provided at the upper end of the weighing sensor (13), and the collecting box (14) and the weighing sensor (13) are in close contact with each other; It also comprises a dust collecting chamber (17), which is opened on the upper side of one side inside the main body (1), and a dustproof net (18) is arranged on one side inside the dust collecting chamber (17).

2. A particle screening device for molybdenum oxide production according to claim 1, characterized in that: A motor (11) is installed on one side of the lower end of the transmission chamber (8), and the output end of the motor (11) is connected to one of the rotating rods (9) via a coupling.

3. A particle screening device for molybdenum oxide production according to claim 2, characterized in that: The rotating rod (9) is connected to one end of the transmission chamber (8) by a transmission belt (12).

4. A particle screening device for molybdenum oxide production according to claim 1, characterized in that: A PLC controller (2) is installed on the upper side of the front end of the main body (1), and the input end of the PLC controller (2) is electrically connected to the output end of the weighing sensor (13). An alarm (3) is installed on the front side of the upper end of the main body (1), and the input end of the alarm (3) is electrically connected to the output end of the PLC controller (2).

5. The particle screening device for molybdenum oxide production according to claim 1, characterized in that: Fixed plates (7) are provided on the front and rear sides below the screening plate (5), and the fixed plates (7) are fixed to the screening chamber (4) by welding. Return springs (6) are installed on both sides of the upper end of the fixed plate (7), and the upper ends of the return springs (6) are connected to the screening plate (5).

6. A particle screening device for molybdenum oxide production according to claim 1, characterized in that: An air extractor (20) is provided on one side of the upper end of the main body (1); an annular cavity (15) is provided on the upper side of the outside of the screening cavity (4); the annular cavity (15) and the screening cavity (4) are connected via a plurality of through holes (16) distributed in a rectangular array; the dust collecting cavity (17) is connected to the air extractor (20) and the annular cavity (15) via a connecting pipe (19).

7. A particle screening device for molybdenum oxide production according to claim 1, characterized in that: A rotating door (21) is installed on the lower side of the front end of the main body (1), and a sealing door (22) is installed on one side of the upper end of the main body (1).

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