CN211664060U

CN211664060U - Anti-blow-by screw conveyor

Info

Publication number: CN211664060U
Application number: CN201922179253.0U
Authority: CN
Inventors: 方庆忠; 方正京华; 钱小全
Original assignee: Zhongxi New Material Anhui Co ltd
Current assignee: Zhongxi New Material Anhui Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-10-13
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a prevent screw conveyer of scurring, it includes: the outer pipe is provided with a feeding hole and a discharging hole; a screw delivery shaft disposed within the outer tube, the screw delivery shaft including a rotating shaft and a helical blade disposed on the rotating shaft; the driving device drives the spiral conveying shaft to rotate; the spiral conveying shaft comprises a first part, a second part and a third part, the first part, the second part and the third part are sequentially distributed along the axial direction of the spiral conveying shaft, the first part and the third part are provided with spiral blades, the second part is not provided with the spiral blades and is positioned between the feeding hole and the discharging hole, and one part of the second part is overlapped with the discharging hole. The utility model discloses can prevent that gaseous anti-scurrying advances in the screw conveyer.

Description

Anti-blow-by screw conveyor

Technical Field

The utility model relates to a conveying equipment specifically is a prevent screw conveyer of scurring gas.

Background

As shown in fig. 1, the screw conveyor of the prior art includes an outer tube 1, a screw conveying shaft disposed in the outer tube, and a driving device 6 for driving the screw conveying shaft to rotate, a feeding port 2 and a discharging port 5 are disposed on the outer tube 1, the screw conveying shaft includes a rotating shaft 3 and a helical blade 4 disposed on the rotating shaft 3, when the screw conveyor is in operation, the driving device 6 drives the rotating shaft 3 to rotate, and the helical blade 4 rotates along with the rotating shaft 3 to convey the material in the outer tube 1 from the feeding port 2 to the discharging port 5.

However, if the screw conveying shaft is used for pushing materials, the outer pipe is not filled with the filling materials or gaps among the material particles are large, so that the sealing is not tight, the situation that gas reversely flows into the screw conveyor is easy to occur, the system is leaked, and normal feeding is influenced; if the temperature of the reverse blow-by gas is higher, the material in the screw conveyer is easy to denature and coke, cause blockage and influence charging, and in severe cases, the material can catch fire and burn out the screw blade and the rotating shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a prevent screw conveyer of scurring is provided, it can prevent that gaseous anti-scurring advances in the screw conveyer.

In order to solve the technical problem, the utility model provides a prevent screw conveyer of scurry gas, it includes:

the outer pipe is provided with a feeding hole and a discharging hole;

a screw delivery shaft disposed within the outer tube, the screw delivery shaft including a rotating shaft and a helical blade disposed on the rotating shaft;

the driving device drives the spiral conveying shaft to rotate;

the spiral conveying shaft comprises a first part, a second part and a third part, the first part, the second part and the third part are sequentially distributed along the axial direction of the spiral conveying shaft, the first part and the third part are provided with spiral blades, the second part is not provided with the spiral blades and is positioned between the feeding hole and the discharging hole, and one part of the second part is overlapped with the discharging hole.

Preferably, one end of the second part is flush with the axis of the discharge hole.

Preferably, the length of the part of the second part, which is not overlapped with the discharge hole, is 300 mm.

Preferably, the feed inlet is close to the first end of the outer tube, the discharge outlet is close to the second end of the outer tube, the third part is located between the second part and the second end of the outer tube, and the sum of the lengths of the third part and the second part is 620 mm.

Preferably, the blades on the first part are forward pushing blades used for pushing materials from the feeding hole to the discharging hole, and the helical blades on the third part are backward pushing blades.

After the structure more than adopting, compared with the prior art, the utility model, have following advantage:

the utility model discloses a screw conveyer, divide into the first portion with the auger delivery axle, second portion and third portion, helical blade has on first portion and the third portion, there is not helical blade in the second portion, the second portion is located between feed inlet and the discharge gate, and like this, screw conveyer is when carrying material, can be full of the material in the second portion, and the material is extruded tightly, and the material on the second portion can form sealedly like this, can prevent that gas from scurrying into inside the screw conveyer by the discharge gate is anti-.

Drawings

FIG. 1 is a schematic view of a prior art screw conveyor;

fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 2, the utility model discloses a prevent screw conveyer of scurrying includes that an outer tube 10, one set up auger delivery axle 20 and a drive in the outer tube 10 the rotatory drive arrangement 30 of auger delivery axle 20, outer tube 10 is the pipe, auger delivery axle 20 sets up along the axis direction of outer tube 10, drive arrangement 30 includes motor 30, and motor 30 passes through transmission system drive auger delivery axle 20 and rotates.

The outer tube 10 is provided with a feed inlet 11 and a discharge outlet 12.

The spiral conveying shaft 20 comprises a rotating shaft 21 and spiral blades 22 arranged on the rotating shaft, and the rotating shaft 21 and the outer tube 10 are coaxially arranged.

The spiral conveying shaft 20 comprises a first part A, a second part B and a third part C, the first part A, the second part B and the third part C are sequentially distributed along the axial direction of the spiral conveying shaft 20, the first part A and the third part C are provided with spiral blades 22, the second part B is not provided with the spiral blades 22, the second part B is positioned between the feeding hole 11 and the discharging hole 12, and one part of the second part B is superposed with the discharging hole 12

One end of the second part B is flush with the axis of the discharge port 12, so that the discharge port is sealed by the materials filled on the second part B when the screw conveyor works, and gas back-flowing is better avoided.

The length of the part of the second part B, which is not overlapped with the discharge port 12, is 300 mm, so that the length of the second part B is longer, and the sealing performance of the material filled on the second part B is better when the screw conveyor works.

The feed inlet 11 is close to the first end of the outer tube 10, the discharge outlet 12 is close to the second end of the outer tube 10, the third part C is located between the second part B and the second end of the outer tube 10, and the sum of the lengths of the third part C and the second part B is 620 mm.

The blades on the first part a are forward pushing blades for pushing the material from the feeding hole 11 to the discharging hole 12, and the helical blades 22 on the third part C are backward pushing blades, so that when the driving device 30 drives the helical conveying shaft 20 to rotate, the forward pushing blades 221 and the backward pushing blades 222 push the material in opposite directions, and the material can be smoothly discharged from the discharging hole 12.

The utility model discloses a screw conveyer uses, the material is by in feed inlet 11 gets into outer tube 1, drive arrangement 30 drive auger delivery axle 20 is rotatory, auger delivery axle 20 promotes the material and is discharged by discharge gate 12, owing to not have helical blade 22 on the second part B of auger delivery axle 20, thereby make to be full of the material on the second part B, and the material is extruded tightly, the material on the second part B can form sealedly like this, can prevent that gas from being reversed scurried into inside the screw conveyer by discharge gate 12.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, but should not be construed as limiting the claims, and the present invention is not limited to the above-described embodiments, but may be modified in various ways. In summary, all changes that can be made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. A blow-by resistant screw conveyor comprising:

the device comprises an outer pipe (10), wherein a feed inlet (11) and a discharge outlet (12) are formed in the outer pipe (10);

a screw conveyor shaft (20) disposed within said outer tube (10), said screw conveyor shaft (20) including a rotatable shaft (21) and a helical blade (22) disposed on said rotatable shaft;

a driving device (30) for driving the spiral conveying shaft (20) to rotate;

the method is characterized in that:

the spiral conveying shaft (20) comprises a first part (A), a second part (B) and a third part (C), the first part (A), the second part (B) and the third part (C) are sequentially distributed along the axial direction of the spiral conveying shaft (20), spiral blades (22) are arranged on the first part (A) and the third part (C), the second part (B) is not provided with the spiral blades (22), the second part (B) is located between the feeding hole (11) and the discharging hole (12), and one part of the second part (B) is overlapped with the discharging hole (12).

2. A blow-by preventing screw conveyor according to claim 1, wherein one end of the second portion (B) is flush with the axis of the discharge port (12).

3. A blow-by preventing screw conveyor according to claim 2, wherein the length of the portion of the second section (B) not coinciding with the discharge port (12) is 300 mm.

4. A blow-by preventing screw conveyor according to claim 3, wherein the feed inlet (11) is located near the first end of the outer pipe (10), the discharge outlet (12) is located near the second end of the outer pipe (10), the third portion (C) is located between the second portion (B) and the second end of the outer pipe (10), and the sum of the lengths of the third portion (C) and the second portion (B) is 620 mm.

5. The anti-blowby screw conveyor according to claim 4, wherein said first portion (A) has forward blades for pushing material from the inlet (11) to the outlet (12), and said third portion (C) has reverse blades (22).