CN223405380U - A powder multiple screening device - Google Patents

Abstract

The utility model relates to the technical field of powder screening, specifically a powder multiple screening device, comprising a housing and a collection device; the housing is provided with a feed pipe and a discharge pipe; the collection device comprises a water tank disposed on the housing, a fan disposed on the water tank, an air intake pipe and a connecting pipe connected to the fan input and output ends, respectively, an air suction hood disposed at the inlet of the air intake pipe, a rotating rod rotatably connected to the interior of the water tank, a plurality of stirring blades disposed on the rotating rod, and a drive assembly disposed on the water tank, with the connecting pipe outlet located at the bottom of the water tank. The utility model prevents powder from overflowing from the feed pipe along with air, thereby affecting the working environment and the health of workers, and has excellent practicality.

Description

Powder multiple sieving device

Technical Field

The utility model relates to the technical field of powder screening, in particular to a powder multiple screening device.

Background

The powder multiple sieving is a material treatment process, and is mainly used for classifying, sieving and purifying powdery materials. The process can improve the purity of the powder, ensure the granularity distribution of the materials to meet specific production requirements, and remove impurities and unnecessary particles.

Chinese patent publication No. CN215542762U discloses a multistage screening plant for alumina powder, including screening organism, the inside of screening organism is equipped with a plurality of screening unit, and can dismantle the setting between screening unit and the screening organism through coupling mechanism, installs the screening net through dismouting mechanism on the screening unit, one side of screening organism is equipped with a plurality of export with the corresponding export of screening unit, and the bottom of screening organism is equipped with No. two exports, the centre at screening organism top is equipped with the feed inlet, and the bottom fixed mounting of screening organism has the support frame. This device is through being provided with a series of structures, realizes multistage screening, multistage screening is efficient, labour saving and time saving, can dismantle the screening unit of design, confirms screening unit quantity according to the hierarchical number of times demand, uses in a flexible way, and the suitability is stronger, easy dismounting is convenient for overhaul, change screening unit module, and the screen cloth that activity set up on the screening unit can vibrate, vibrates and improves screening efficiency.

However, the technical scheme has the following defects that the device is convenient for overhauling and replacing the screening unit module, but after powder is dumped into the machine body, fine powder can be lifted up and overflowed from the feeding port after vibrating and screening, so that the working environment is damaged, and the physical health of staff is affected.

Disclosure of utility model

The utility model aims at solving the problems in the background technology, and provides a powder multiple sieving device which has good practicability and can avoid the condition that powder overflows from a feeding pipe along with air so as to influence the working environment and the physical health of staff.

The technical scheme includes that the powder multiple screening device comprises a box body and a collecting device, wherein a feeding pipe and a discharging pipe are arranged on the box body, the collecting device comprises a water tank arranged on the box body, a fan arranged on the water tank, an air inlet pipe and a communicating pipe which are respectively connected with an input end and an output end of the fan, an air suction cover arranged at an inlet of the air inlet pipe, a rotating rod rotatably connected inside the water tank, a plurality of stirring blades arranged on the rotating rod, and a driving assembly arranged on the water tank, and an outlet of the communicating pipe is positioned at the bottom of the water tank.

Preferably, the driving assembly comprises a first motor arranged on the water tank, a second gear in driving connection with the first motor, and a first gear coaxially arranged on the rotating rod, wherein the first gear is in meshed connection with the second gear.

Preferably, the water tank is provided with a water inlet pipe, a water outlet pipe and an exhaust pipe.

Preferably, a baffle is arranged on the feeding pipe, and the air suction cover is positioned below the baffle.

Preferably, the inside of box is provided with three from top to bottom first screening storehouse, second screening storehouse and third screening storehouse that distribute, is provided with three chamber doors on the box, and the inside of first screening storehouse, second screening storehouse and third screening storehouse all is provided with screening mechanism, and screening mechanism includes the reel that the bottom has the screen cloth, four rectangular arrays distribute at the inside supporting component of box to and two symmetric distribution vibration components on the box.

Preferably, the vibration assembly comprises a second motor arranged on the box body, a rotating shaft rotationally connected to the box body, a cam arranged on the rotating shaft and an extrusion block arranged on the screen frame, wherein the extrusion block is positioned above the cam, and the second motor is in driving connection with the rotating shaft.

Preferably, the rotating shaft is coaxially provided with a clamping ring, and the clamping ring is rotationally connected in the box body.

Preferably, the support assembly comprises a placing block arranged on the screen frame, a fixing block arranged on the box body, a fixing cylinder arranged on the fixing block, a spring arranged inside the fixing cylinder, and a supporting column arranged on the spring, wherein the placing block is in butt joint with the supporting column.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. According to the utility model, the powder raised after the powder is poured into the machine body can be absorbed through the collection mechanism, and the powder is collected by the stirring blade and the driving assembly, so that the condition that the powder overflows from the feeding pipe along with air to influence the working environment and the physical health of staff is avoided, and the device has good practicability.

2. According to the utility model, the screen frame during vibration screening can be buffered through the supporting component, the condition that the screen frame is damaged due to direct impact between the screen frame and the fixed block is avoided, the service life of equipment is prolonged, and meanwhile, the noise during screening can be reduced.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the case;

FIG. 3 is a schematic view of the structure of the collection mechanism;

Fig. 4 is a schematic cross-sectional structure of the support assembly.

Reference numeral 1, a box body; 2, a feeding pipe, 3, a water tank, 4, a fan, 5, an air inlet pipe, 6, an air suction cover, 7, a communicating pipe, 8, a rotating rod, 9, a stirring blade, 10, a first gear, 11, a first motor, 12, a second gear, 13, a water inlet pipe, 14, a water outlet pipe, 15, an air outlet pipe, 16, a baffle, 17, a screen frame, 18, a squeezing block, 19, a second motor, 20, a rotating shaft, 21, a cam, 22, a clamping ring, 23, a placing block, 24, a fixed block, 25, a fixed cylinder, 26, a spring, 27, a supporting column, 28, a box door, 29 and a discharging pipe.

Detailed Description

Example 1

As shown in fig. 1-3, the powder multiple sieving device provided in this embodiment includes a box 1 and a collecting device, where the box 1 is provided with a feed pipe 2 and a discharge pipe 29.

The collecting device comprises a water tank 3 arranged on a box body 1, a fan 4 arranged on the water tank 3, an air inlet pipe 5 and a communicating pipe 7 which are respectively connected with the input end and the output end of the fan 4, an air suction cover 6 arranged at the inlet of the air inlet pipe 5, a rotating rod 8 rotatably connected to the inside of the water tank 3, a plurality of stirring blades 9 arranged on the rotating rod 8, and a driving component arranged on the water tank 3, wherein a water inlet pipe 13, a water outlet pipe 14 and an air outlet pipe 15 are arranged on the water tank 3, the outlet of the communicating pipe 7 is positioned at the bottom of the water tank 3, a baffle 16 is arranged on the water inlet pipe 2, the air suction cover 6 is positioned below the baffle 16, and part of powder is directly sucked by the air suction cover 6 when the baffle 16 is used for preventing powder from entering the box body 1.

The driving assembly comprises a first motor 11 arranged on the water tank 3, a second gear 12 in driving connection with the first motor 11, and a first gear 10 coaxially arranged on the rotating rod 8, wherein the first gear 10 is in meshed connection with the second gear 12.

In this embodiment, when powder is poured into the box 1 from the feed pipe 2, the fan 4 is started to suck the lifted powder from the suction hood 6 and convey the powder into the water tank 3 through the air inlet pipe 5 and the communicating pipe 7, so that the influence on the working environment and the physical health of workers caused by the overflow of the powder from the feed pipe 2 when the powder is screened is avoided, meanwhile, the first motor 11 is started to drive the first gear 10 to be meshed with the second gear 12 for transmission, the second gear 12 drives the rotating rod 8 to be rotated with the stirring blade 9, the powder in the water is stirred to achieve the aim of uniformly distributing the powder in the water tank 3, the meshing transmission speed is controlled to be slow, and the influence on the normal circulation of the gas is avoided.

Example two

As shown in fig. 1, fig. 2 and fig. 4, in the multiple powder sieving device according to the present embodiment, compared with the first embodiment, in the present embodiment, three first sieving bins, second sieving bins and third sieving bins distributed from top to bottom are provided in the box 1, three box doors 28 are provided in the box 1, and sieving mechanisms are provided in the first sieving bins, the second sieving bins and the third sieving bins, each sieving mechanism includes a sieve frame 17 with a sieve at the bottom, four supporting components with rectangular arrays distributed in the box 1, and two vibrating components symmetrically distributed on the box 1, the box doors 28 are used for opening the three sieving bins and picking and placing the sieve frame 17, and powder with different particle sizes collected on each sieve frame 17 is collected and processed respectively.

As shown in fig. 2, the vibration assembly includes a second motor 19 disposed on the case 1, a rotating shaft 20 rotatably connected to the case 1, a cam 21 disposed on the rotating shaft 20, and an extrusion block 18 disposed on the screen frame 17, the extrusion block 18 is disposed above the cam 21, the second motor 19 is in driving connection with the rotating shaft 20, a snap ring 22 is coaxially disposed on the rotating shaft 20, the snap ring 22 is rotatably connected to the inside of the case 1, and the snap ring 22 is used for improving stability when the rotating shaft 20 rotates.

As shown in fig. 2 and 4, the support assembly comprises a placing block 23 arranged on the screen frame 17, a fixed block 24 arranged on the box body 1, a fixed cylinder 25 arranged on the fixed block 24, a spring 26 arranged inside the fixed cylinder 25, and a support column 27 arranged on the spring 26, wherein the placing block 23 is abutted with the support column 27

In this embodiment, when screening powder, the second motor 19 is started to drive the rotating shaft 20 and the cam 21 to rotate, the cam 21 and the extrusion block 18 continuously extrude and separate, and then the extrusion block 18 drives the screen frame 17 to continuously vibrate up and down, so that a screen (not shown) at the bottom of the screen frame 17 performs a vibration screening function on the powder falling on the screen, and the powder smaller than the screen aperture enters the next screening bin until part of the powder is discharged and collected from the discharge pipe 29.

When the screen frame 17 vibrates, the placing block 23 vibrates up and down along with the screen frame 17, the placing block 23 continuously extrudes the supporting columns 27, the supporting columns 27 extrude the springs 26, and then the buffer effect is achieved, the defect that the screen frame 17 is damaged due to direct impact with the fixing block 24 when the screen frame 17 vibrates is avoided, and meanwhile noise during screening is reduced.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (8)

1. A multiple powder screening device, comprising:

the box body (1) is provided with a feed pipe (2) and a discharge pipe (29);

The collecting device comprises a water tank (3) arranged on the tank body (1), a fan (4) arranged on the water tank (3), an air inlet pipe (5) and a communicating pipe (7) which are respectively connected with the input end and the output end of the fan (4), an air suction cover (6) arranged at the inlet of the air inlet pipe (5), a rotating rod (8) rotatably connected to the inside of the water tank (3), a plurality of stirring blades (9) arranged on the rotating rod (8) and a driving assembly arranged on the water tank (3), wherein the outlet of the communicating pipe (7) is positioned at the bottom of the water tank (3).

2. A powder multiple screening device according to claim 1, characterized in that the drive assembly comprises a first motor (11) arranged on the water tank (3), a second gear (12) in driving connection with the first motor (11), and a first gear (10) coaxially arranged on the turning rod (8), the first gear (10) being in meshed connection with the second gear (12).

3. The powder multiple screening device according to claim 1, characterized in that the water tank (3) is provided with a water inlet pipe (13), a water outlet pipe (14) and an exhaust pipe (15).

4. A powder multiple screening device according to claim 1, characterized in that the feeding pipe (2) is provided with a baffle (16), and the suction hood (6) is located below the baffle (16).

5. The powder multiple screening device according to claim 1, wherein three first screening bins, second screening bins and third screening bins which are distributed from top to bottom are arranged in the box body (1), three box doors (28) are arranged on the box body (1), screening mechanisms are arranged in the first screening bins, the second screening bins and the third screening bins, each screening mechanism comprises a screen frame (17) with a screen at the bottom, four supporting components distributed in the box body (1) in a rectangular array mode, and two vibrating components symmetrically distributed on the box body (1).

6. A powder multiple screening apparatus according to claim 5, characterized in that the vibration assembly comprises a second motor (19) provided on the casing (1), a rotating shaft (20) rotatably connected to the casing (1), a cam (21) provided on the rotating shaft (20), and a pressing block (18) provided on the screen frame (17), the pressing block (18) being located above the cam (21), the second motor (19) being in driving connection with the rotating shaft (20).

7. The powder multiple sieving device according to claim 6, wherein a snap ring (22) is coaxially arranged on the rotating shaft (20), and the snap ring (22) is rotatably connected to the inside of the box body (1).

8. The powder multiple sieving apparatus as claimed in claim 5, wherein the supporting assembly includes a placement block (23) provided on the sieve frame (17), a fixing block (24) provided on the case (1), a fixing cylinder (25) provided on the fixing block (24), a spring (26) provided inside the fixing cylinder (25), and a support column (27) provided on the spring (26), the placement block (23) being abutted with the support column (27).