CN209772430U - spiral screening device for producing flame-retardant powder material - Google Patents

Abstract

The utility model relates to a spiral screening plant is used in production of fire-retardant powder material, including screening barrel and powder inlet pipeline, the screening barrel includes barrel and lower barrel, connects powder inlet pipeline on the barrel, and powder inlet pipeline is tangent with last barrel, and lower barrel lower extreme is equipped with the collecting bag, goes up the barrel top and connects the induced duct, is equipped with the draught fan on the induced duct, and induced duct one end is deep into in the barrel top, and the collecting bag is connected to the induced duct other end; the powder inlet pipeline is provided with at least two groups of baffle components on the pipeline wall on the tangent side of the upper barrel, each baffle component comprises an outer baffle and an inner baffle, the outer baffle and the inner baffle are fixed on a rotating shaft at a right angle, and the rotating shaft is positioned on the powder inlet pipeline wall. The device has changed the direction of feed through baffle subassembly's setting for centrifugal radius of rotation reduces, and air velocity is high, has improved spiral separation efficiency.

Description

Spiral screening device for producing flame-retardant powder material

Technical Field

The utility model relates to a spiral screening plant is used in production of fire-retardant powder material belongs to cyclone equipment technical field.

Background

The flame retardant has important functions in modern society, and is widely applied to building products, chemical building materials, electronic and electric appliances, transportation, daily household and the like. The flame retardant is usually a powder material, a cyclone separator is needed in the production link of the flame retardant to screen and separate powder with different particle sizes and masses, the cyclone separator is mainly introduced tangentially by airflow to form rotary motion, separation is realized under the action of inertial centrifugation, the function of the gas speed is important when the existing spiral separation device works, the gas speed is too low, the separation efficiency is low, the gas speed changes along with the change of the rotary radius, and the rotary radius is related to the radius of an equipment cylinder and cannot be adjusted.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the utility model provides a spiral screening plant is used in production of fire-retardant powder material, solves the unable problem of bringing of adjustment of above-mentioned radius of rotation.

The utility model discloses a spiral screening plant is used in production of fire-retardant powder material, including screening barrel and powder inlet pipeline, the screening barrel includes barrel and lower barrel, goes up the barrel and is the cylinder, and lower barrel is the cone, connects powder inlet pipeline on going up the barrel, and powder inlet pipeline is tangent with last barrel, and lower barrel lower extreme is equipped with the collecting bag, goes up the barrel top and connects induced duct, is equipped with the draught fan on the induced duct, and induced duct one end is gone deep into in the barrel top, and the induced duct other end is connected the collecting bag; the powder inlet pipeline is provided with at least two groups of baffle components on the pipeline wall on the tangent side of the upper barrel, each baffle component comprises an outer baffle and an inner baffle, the outer baffle is positioned outside the powder inlet pipeline, the inner baffles are positioned inside the powder inlet pipeline, the outer baffles and the inner baffles are fixed on a rotating shaft at right angles, and the rotating shaft is positioned on the powder inlet pipeline wall.

Preferably, the baffle assembly is provided with a threaded hole, a positioning bolt is arranged in the threaded hole, and one end of the positioning bolt abuts against the inner baffle to prevent the angle of the inner baffle from changing.

preferably, the bottom in the lower cylinder body is provided with a vortex cover to enhance the spiral motion effect.

Preferably, the screening cylinder body consists of a steel plate shell and a wear-resistant lining plate, and the wear-resistant lining plate prolongs the service life of equipment.

Preferably, a rubber sleeve is arranged outside the rotating shaft, so that the sealing performance at the rotating shaft is improved.

Preferably, one end of the induced draft pipe, which is positioned at the powder inlet pipeline, is provided with a filter screen.

Preferably, two groups of baffle plate components are arranged on the wall of the pipeline on the tangent side of the powder inlet pipeline and the upper barrel.

During operation, the powder gets into the barrel from powder inlet pipeline, forms the bolt motion in the barrel, and the powder that the light particle size of quality is little gets into the collecting bag from induced duct, and the powder whereabouts that the heavy particle size of quality is big gets into the collecting bag under the barrel, according to operating condition, accessible adjustment rotates corresponding outer baffle and makes interior baffle form certain contained angle in powder inlet pipeline, changes the direction of feed, reduces radius of rotation, improves screening efficiency and quality.

Compared with the prior art, the utility model beneficial effect who has is:

Spiral screening plant is used in production of fire-retardant powder material simple structure through baffle subassembly's setting, has changed the direction of feed for centrifugal radius of rotation reduces, and air velocity is high, has improved spiral separation efficiency, thereby has improved the quality of product screening.

Drawings

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a tangential feed configuration;

Fig. 3 is a schematic view of the baffle assembly.

In the figure: 1. a powder inlet pipeline; 2. filtering with a screen; 3. an upper cylinder body; 4. an air inducing duct; 5. an induced draft fan; 6. collecting the material belt; 7. a lower cylinder body; 8. a vortex cover; 9. an outer baffle; 10. positioning the bolt; 11. a threaded hole; 12. a rubber sleeve; 13. an inner baffle; 14. a rotating shaft.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings:

As shown in fig. 1-3, the spiral screening device for producing flame-retardant powder material comprises a screening cylinder and a powder inlet pipeline 1, the screening cylinder comprises an upper cylinder 3 and a lower cylinder 7, the upper cylinder 3 is a cylinder, the lower cylinder 7 is a cone, the powder inlet pipeline 1 is connected to the upper cylinder 3, the powder inlet pipeline 1 is tangent to the upper cylinder 3, a material collecting bag 6 is arranged at the lower end of the lower cylinder 7, the top of the upper cylinder 3 is connected with an induced draft pipeline 4, an induced draft fan 5 is arranged on the induced draft pipeline 4, one end of the induced draft pipeline 4 extends into the top of the upper cylinder 3, and the other end of the induced draft pipeline 4 is connected with the material collecting bag 6; be equipped with two sets of baffle subassemblies on the pipeline wall of the tangent one side of powder entry pipeline 1 and last barrel 3, baffle subassembly includes outer baffle 9 and interior baffle 13, and outer baffle 9 is located powder entry pipeline 1 outsidely, and interior baffle 13 is located powder entry pipeline 1 inside, and outer baffle 9 and interior baffle 13 become the right angle and fix on a pivot 14, and pivot 14 is located powder entry pipeline 1 wall.

The baffle plate assembly is provided with a threaded hole 11, and a positioning bolt 10 is arranged in the threaded hole 11.

The bottom in the lower cylinder 7 is provided with a vortex cover 8.

The screening cylinder body consists of a steel plate shell and a wear-resistant lining plate.

the rubber sleeve 12 is arranged outside the rotating shaft 14.

One end of the induced draft pipeline 4, which is positioned at the powder inlet pipeline 1, is provided with a filter screen 2.

During operation, the powder gets into barrel 3 from powder inlet pipeline 1, according to operating condition, rotate corresponding outer baffle 9 through the adjustment and make interior baffle 13 form certain contained angle in powder inlet pipeline 1, withstand interior baffle 13 with positioning bolt 10, interior baffle 13 has changed the direction of feed, the radius of rotation has been reduced, form the bolt motion in the barrel, the powder that the light particle size of quality is little gets into collection bag 6 from induced duct 4 way, the powder whereabouts that the heavy particle size of quality is big gets into collection bag 6 under the barrel, thereby improve screening efficiency and quality.

Claims (7)

1. The utility model provides a spiral screening plant is used in production of fire-retardant powder material, includes screening barrel and powder entry pipeline (1), and the screening barrel includes barrel (3) and lower barrel (7), goes up barrel (3) and is the cylinder, and lower barrel (7) are the cone, go up and connect powder entry pipeline (1) on barrel (3), and powder entry pipeline (1) is tangent with last barrel (3), and barrel (7) lower extreme is equipped with material collection bag (6) down, its characterized in that: the top of the upper cylinder (3) is connected with an induced draft pipeline (4), an induced draft fan (5) is arranged on the induced draft pipeline (4), one end of the induced draft pipeline (4) extends into the top of the upper cylinder (3), and the other end of the induced draft pipeline (4) is connected with a material collecting bag (6); the powder inlet pipeline (1) is equipped with two sets of at least baffle plate assemblies on the pipeline wall of the tangent one side of last barrel (3), the baffle plate assembly includes outer baffle plate (9) and interior baffle plate (13), outer baffle plate (9) are located powder inlet pipeline (1) outside, interior baffle plate (13) are located inside powder inlet pipeline (1), outer baffle plate (9) and interior baffle plate (13) become the right angle and fix on a pivot (14), pivot (14) are located powder inlet pipeline (1) wall.

2. The spiral screening device for producing the flame-retardant powder material according to claim 1, which is characterized in that: the baffle plate assembly is provided with a threaded hole (11), and a positioning bolt (10) is arranged in the threaded hole (11).

3. The spiral screening device for producing the flame-retardant powder material according to claim 1, which is characterized in that: the bottom in the lower cylinder body (7) is provided with a vortex cover (8).

4. The spiral screening device for producing the flame-retardant powder material according to claim 1, which is characterized in that: the screening cylinder body consists of a steel plate shell and a wear-resistant lining plate.

5. The spiral screening device for producing the flame-retardant powder material according to claim 1, which is characterized in that: and a rubber sleeve (12) is arranged outside the rotating shaft (14).

6. The spiral screening device for producing the flame-retardant powder material according to claim 1, which is characterized in that: and a filter screen (2) is arranged at one end of the air inducing pipeline (4) positioned at the powder inlet pipeline (1).

7. The spiral screening device for producing the flame-retardant powder material according to claim 1, which is characterized in that: and two groups of baffle plate components are arranged on the wall of the pipeline on one side of the tangent of the powder inlet pipeline (1) and the upper cylinder (3).