Closed screening device for molybdenum powder production

Abstract

The utility model discloses a closed screening device for molybdenum powder production, which comprises a supporting shaft seat, a rotating groove is arranged on the supporting shaft seat, a screening roller is assembled on the rotating groove, two pairs of supporting rollers are arranged at two ends of the supporting shaft seat, the screening roller is movably mounted on the two pairs of supporting rollers, and the screening roller is arranged on the supporting shaft seat. The utility model relates to the technical field of molybdenum powder production, in particular to a closed screening device for molybdenum powder production, which adopts a closed net barrel type structure to screen molybdenum powder, further, a dust collecting component is arranged on one side of a blanking device of a closed net barrel, and the dust collecting component is arranged on the other side of the blanking device. According to the dust collection device, dust generated by rolling molybdenum powder in the closed net barrel moves towards one side of the dust collection assembly under the flow guide effect, a dustproof barrel of the dust collection assembly is used for filtering passing air, the dust in the air is intercepted, and it is avoided that leakage pollutes the air and influences the health of a user; through the unpowered air cap structure, the working environment can be effectively improved on the basis of not adding power equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to molybdenum powder production technical field, specifically is a closed screening device for molybdenum powder production. BACKGROUND

[0002] In the modern molybdenum powder production process, in order to separate the impurities therein, the screening device is needed to screen the molybdenum powder, and the screening device at the present stage is mainly various mechanical vibrating screens or roller screens, but the conventional screening device needs to feed at the top, so in the use process, the vibration of the machine is easy to cause dust raising, which affects the environment and harms the health of the workers.

[0003] In order to be more environmentally friendly, the roller screen is used to screen the molybdenum powder at the present stage, however, although the sleeve is closed, the pollution to the external environment is reduced, but the small particles in the molybdenum powder are suspended in the roller during the rotation of the roller, which is easy to escape from the feeding and discharging ports of the roller, and the influence of the dust cannot be completely eliminated, in view of this, the above problems are studied in depth, and the case is generated. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a closed screening device for molybdenum powder production, which solves the problems of the prior art.

[0005] In order to achieve the above purpose, the utility model realizes the following technical scheme: a closed screening device for molybdenum powder production, comprising a support shaft seat, a rotating groove is arranged on the support shaft seat, a screening roller is assembled on the rotating groove, two pairs of support rollers are arranged at the two ends of the support shaft seat, the screening roller is movably installed on the two pairs of support rollers, a feeder is connected to one end of the screening roller, and a discharger is connected to the other end of the screening roller.

[0006] One side of the feeder is provided with a feeding port, and one side of the support shaft seat is provided with a power assembly for driving the screening roller to rotate.

[0007] The screening roller is composed of an inner mesh cylinder and a cover shell covering the outer mesh cylinder, the cover shell is connected with the support shaft seat, a discharging passage is arranged at the bottom of the cover shell and communicates with the support shaft seat, and a discharging port is arranged on the support shaft seat.

[0008] The discharger comprises a sleeve seat, a separation port is arranged on one side of the sleeve seat, the separation port is sleeved outside the mesh cylinder, the separation port is of a slope structure, a discharge port is arranged in communication on one side of the separation port, a dust collection opening is arranged on the sleeve seat, and a dust collection assembly is arranged on the dust collection opening.

[0009] Preferably, the two sides of the cover are symmetrically provided with a pair of mounting plates, and a pair of the mounting plates are connected with the support shaft base through a plurality of pairs of bolts.

[0010] Preferably, the feeder and the discharger are respectively connected with the support shaft base.

[0011] Preferably, the dust collection assembly comprises a dust collection sleeve, the dust collection sleeve is connected with the dust collection opening, a dustproof cylinder is assembled in the dust collection sleeve, an air inlet is formed in the bottom of the dustproof cylinder, and a non-powered air cap is arranged at the top end of the dust collection sleeve.

[0012] Preferably, the power assembly comprises a driving gear ring, one end of the meshing cylinder is sleeved with the driving gear ring, a driving motor is arranged on the support shaft base, a driving shaft is connected with the driving end of the driving motor, and a driving gear is mounted on the driving shaft and engaged with the driving gear ring. Beneficial effects

[0013] The utility model provides a closed screening device for molybdenum powder production, has the following beneficial effects: the closed screening device for molybdenum powder production adopts the closed meshing cylinder structure to screen molybdenum powder, and a dust collection assembly is arranged on the side of the discharger of the closed meshing cylinder, the dust generated by the molybdenum powder rolling in the closed meshing cylinder moves to the side of the dust collection assembly under the guiding action of the non-powered air cap, the dustproof cylinder of the dust collection assembly filters the air passing through, the dust in the air is intercepted, air pollution is avoided, and the health of the user is affected, and the non-powered air cap structure can effectively improve the working environment without increasing power equipment. ACCURACY OF DRAWINGS

[0014] Fig. 1 It is a perspective structural schematic view of the closed screening device for molybdenum powder production.

[0015] Fig. 2 It is a perspective structural schematic view of the closed screening device for molybdenum powder production.

[0016] Fig. 3 It is a sectional view of the closed screening device for molybdenum powder production.

[0017] In the figure: 1, support shaft seat; 2, screening roller; 3, supporting roller; 4, feeder; 5, discharger; 6, power assembly; 7, dust collection assembly; 21, mesh cylinder; 22, cover shell; 23, discharging channel; 24, discharging opening; 41, feeding opening; 51, sleeve seat; 52, separation opening; 53, discharge opening; 54, dust collection opening; 61, driving gear ring; 62, driving motor; 63, driving shaft; 64, driving gear; 71, dust collection sleeve; 72, dustproof cylinder; 73, non-powered air cap; 721, air inlet; 722, dustproof mesh. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figs. 1-3 The utility model provides a kind of implementation scheme: in modern molybdenum powder production process, the molybdenum powder processed needs to be screened, and the screening tool of present stage is mainly open structure, which leads to that molybdenum powder is screened, and dust raising and other problems are prone to occur due to mechanical vibration, and the processing mode of present stage is mainly screened by closed drum screen machine, however, in the screening process of the closed drum screen machine of present stage, molybdenum powder stirring can generate a large amount of floating and sinking, float in the body, prone to discharge from discharge port due to air flow, and cannot completely avoid the problems of environmental pollution and harm to workers' health.

[0020] For the above problems, the application discloses a closed screening device for molybdenum powder production, which comprises a support shaft seat 1, the support shaft seat 1 is used as the support base of the screening device, a rotating groove is arranged on the support shaft seat 1, a screening roller 2 is assembled on the rotating groove, two pairs of support rollers 3 are arranged at the two ends of the support shaft seat 1, the screening roller 2 is movably installed on the two pairs of support rollers 3, the screening roller 2 can rotate on the two pairs of support rollers 3, the two pairs of support rollers 3 play a supporting role, and a feeder 4 is connected to one end of the screening roller 2, a discharger 5 is connected to the other end of the screening roller 2, the feeder 4 is used for limiting and installing one end of the screening roller 2 and realizing feeding, and the discharger 5 is arranged at the corresponding end of the screening roller 2, so that the other end of the screening roller 2 can be supported and installed by using the discharger 5, and large impurities screened out by the screening roller 2 can be discharged by using the discharger 5;

[0021] Specifically, according to the drawings in the specification Figs. 1-3It can be known that one side of the feeder 4 is provided with the feeding port 41, one side of the support shaft base 1 is provided with the power assembly 6 to drive the screening drum 2 to rotate, the power assembly 6 can drive the screening drum 2 to rotate, the support shaft base 1 is fixedly installed on the screening drum 2, in the rotating process of the screening drum 2, the molybdenum powder is screened by the mesh, so that the large impurities are separated out, and the molybdenum powder raw material is rolled by the rolling action, so that the impurities in the molybdenum powder are separated out.

[0022] Further according to the description Figs. 1-3 It can be known that the screening drum 2 is composed of the mesh cylinder 21 inside and the cover shell 22 covering the mesh cylinder 21 outside, the cover shell 22 is connected with the support shaft base 1, the bottom of the cover shell 22 is provided with the discharging passage 23 communicating with the support shaft base 1, and the support shaft base 1 is provided with the discharging port 24, in the specific implementation process, the cover shell 22 plays a role in closing the mesh cylinder 21, the mesh cylinder 21 can rotate in the cover shell 22, the support shaft base 1 plays a role in supporting and installing the cover shell 22, and further, the discharging passage 23 at the bottom of the cover shell 22 is communicated with the discharging port 24, under the action of gravity, the grinding powder falls from the mesh cylinder 21 to the bottom of the cover shell 22 and is discharged from one side of the discharging port 24 under the flow guiding action of the discharging passage 23.

[0023] According to the description Figs. 1-3 It can be known that the feeder 4 is composed of the feeder 4, the support shaft base 1, the power assembly 6, the screening drum 2 and the discharger 5.

[0024] In the specific implementation process, the support shaft base 1 plays a role in supporting one end of the mesh cylinder 21, the separation port 52 is communicated with the mesh cylinder 21, the impurities separated out by filtering enter the separation port 52, so that the impurities are discharged by the discharge port 53, the discharge port 53 is closed by the opening and closing door during screening, in order to avoid that the dust in the molybdenum powder rolling in the mesh cylinder 21 flows to the outside, the dust collecting opening 54 is provided on one side of the separation port 52, the dust collecting opening 54 is communicated with the filtering mesh cylinder 21 through the separation port 52, and the air and dust inside are separated out by the air flow guiding action of the dust collecting assembly 7.

[0025] Preferably, a pair of mounting plates is symmetrically arranged on the two sides of the cover shell 22, a plurality of pairs of bolts are connected between the pair of mounting plates and the support shaft base 1, the cover shell 22 is installed on the support shaft base 1 through the pair of mounting plates of the cover shell 22, and the cover shell 22 is separated out through the plurality of pairs of bolts, so that the maintenance is facilitated.

[0026] Preferably, the feeder and the discharger 5 are connected with the support shaft base 1 respectively, the integrality of the equipment is guaranteed, and the occupied space of the equipment is reduced.

[0027] Preferably, according to the description attached Figs. 1-3 As can be seen, the dust collection assembly 7 comprises a dust collection sleeve 71, the dust collection sleeve 71 is connected to the dust collection opening 54, and a dustproof cylinder 72 is assembled in the dust collection sleeve 71, the bottom of the dustproof cylinder 72 is provided with an air inlet 721, and the top end of the dust collection sleeve 71 is provided with a non-powered air cap 73;

[0028] In the specific implementation process, the dust collection sleeve 71 is in communication with the dust collection opening 54, the dust collection sleeve 71 extends upward as an air flow channel, and the non-powered air cap 73 provided at the top end of the dust collection sleeve 71 serves as a guide flow power device of the equipment, which rotates under the action of external air pressure and air flow, so that the dust collection sleeve 71 is in a negative pressure state. Due to the communication between the integrated sleeve and the mesh cylinder 21, the dust stirred under the action of negative pressure flows to the side of the dust collection sleeve 71 under the action of air flow, and the dustproof cylinder 72 is arranged in the dust collection sleeve 71, which realizes the separation of dust in the air by the filtering action of the dustproof cylinder 72. The upper part of the dustproof cylinder 72 is open, and the air inlet 721 arranged at the lower part of the dustproof cylinder 72 is a concave structure, which avoids the falling of dust. The dustproof net 722 arranged in the dustproof cylinder 72 is arranged in multiple levels and staggered, which fully filters the dust passing through.

[0029] Preferably, according to the description attached Figs. 1-3 As can be seen, the power assembly 6 comprises a driving gear ring 61, one end of the mesh cylinder 21 is sleeved with the driving gear ring 61, and the support shaft seat 1 is provided with a driving motor 62. The driving end of the driving motor 62 is connected with a driving shaft 63, the driving shaft 63 is installed with a driving gear 64 which is engaged with the driving gear ring 61. The driving motor 62 drives the driving shaft 63 to rotate, so that the driving shaft 63 drives the driving gear 64 to rotate, and then the driving gear 64 is threadedly engaged with the driving gear ring 61. Under the driving of the torque, the driving gear ring 61 drives the mesh cylinder 21 to rotate.

[0030] As can be seen from the above, the closed screening device for molybdenum powder production adopts a closed mesh cylinder 21 structure for screening molybdenum powder, and a dust collection assembly 7 is arranged on one side of the feeder 5 of the closed mesh cylinder 21. The dust generated by the rolling molybdenum powder in the closed mesh cylinder 21 moves to the side of the dust collection assembly 7 under the action of the guide flow, and then the dustproof cylinder 72 of the dust collection assembly 7 filters the passing air, thereby intercepting the dust in the air and avoiding the leakage of contaminated air, which affects the health of the user. Through the structure of the non-powered air cap 73, the working environment can be effectively improved without increasing the power equipment.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed screening device for molybdenum powder production, comprising a support shaft seat (1), a rotating groove provided on the support shaft seat (1), a screening drum (2) mounted on the rotating groove, two pairs of support rollers (3) provided at both ends of the support shaft seat (1), and the screening drum (2) movably mounted on the two pairs of support rollers (3), characterized in that, One end of the screening drum (2) is connected with a feeder (4), and the other end of the screening drum (2) is connected with a discharger (5); One side of the feeder (4) is provided with a feeding port (41), and one side of the support shaft seat (1) is provided with a power assembly (6) for driving the screening drum (2) to rotate; The screening drum (2) is composed of an inner mesh cylinder (21) and a cover shell (22) covering the mesh cylinder (21), the cover shell (22) is connected with the support shaft seat (1), the bottom of the cover shell (22) is provided with a discharging channel (23) communicating with the support shaft seat (1), and the support shaft seat (1) is provided with a discharging opening (24); The discharger (5) comprises a sleeve seat (51), one side of the sleeve seat (51) is provided with a separation port (52), the separation port (52) is sleeved outside the mesh cylinder (21), the separation port (52) is of a slope structure, one side of the separation port (52) is provided with a discharge port (53) in communication, the sleeve seat (51) is provided with a dust collection opening (54), and the dust collection opening (54) is provided with a dust collection assembly (7).

2. The closed-type screening device for molybdenum powder production according to claim 1, characterized in that, A pair of mounting plates are symmetrically arranged on both sides of the cover shell (22), and a plurality of pairs of bolts are connected between the mounting plates and the support shaft seat (1).

3. The closed-type screening device for molybdenum powder production according to claim 2, characterized in that, The feeder (4) and the discharger (5) are connected with the support shaft seat (1) respectively.

4. The closed-type screening device for molybdenum powder production according to claim 3, characterized in that, The dust collection assembly (7) comprises a dust collection sleeve (71), the dust collection sleeve (71) is connected to the dust collection opening (54), a dustproof cylinder (72) is assembled in the dust collection sleeve (71), an air inlet (721) is formed in the bottom of the dustproof cylinder (72), and a non-powered air cap (73) is arranged at the top end of the dust collection sleeve (71).

5. The closed-type screening device for molybdenum powder production according to claim 4, characterized in that, The power assembly (6) comprises a driving gear ring (61), one end of the mesh cylinder (21) is sleeved with the driving gear ring (61), the support shaft seat (1) is provided with a driving motor (62), the driving end of the driving motor (62) is connected with a driving shaft (63), and the driving shaft (63) is installed with a driving gear (64) engaged with the driving gear ring (61).

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