CN211435402U

CN211435402U - High-efficiency dust remover for pneumatic conveying end of particles

Info

Publication number: CN211435402U
Application number: CN201921356941.3U
Authority: CN
Inventors: 金显峰; 张瑞光
Original assignee: BEIJING DHP CHEMICAL ENGINEERING CO LTD
Current assignee: BEIJING DHP CHEMICAL ENGINEERING CO LTD
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-09-08
Anticipated expiration: 2029-08-21

Abstract

The utility model relates to a dust collector of pneumatic conveying end especially is used for the dust collecting equipment of various plastic pellet pneumatic conveying receiving feed bin tops. The dust remover comprises a dust remover barrel, a feeding elbow, a material outlet, a dust and gas outlet, a material blocking ring, a lower cone cover, a material separating cone, a flow guide cone ring and an upper cone cover. The feeding elbow is upwards arranged at the lower part of the dust remover cylinder, and a lower conical cover is arranged above the feeding elbow. The lower cone cover and the upper cone cover are respectively fixed on the inner wall of the dust remover barrel through a plurality of supporting plates in a welding manner. The material distributing cone is welded at the inner top of the lower cone cover, and the material blocking ring is welded at the lower edge of the lower cone cover. The flow guide conical ring is welded and fixed on the upper part of the dust remover barrel. The utility model has the advantages of following, equipment structure is compact, and the equipment diameter is little, and dust collection efficiency is high, can effectively separate dust and the strip that the material itself was taken and carried the production.

Description

High-efficiency dust remover for pneumatic conveying end of particles

Technical Field

The utility model relates to a terminal high-efficient dust remover of granule pneumatic conveying.

Background

After various plastic particle materials are pneumatically conveyed, the materials rub with the pipe wall to generate dust, the dust can be adsorbed on the pipe wall due to static electricity, the dust falls off under the friction of the materials after a period of time to form conveying wool tops, a dust remover is required to be arranged at an inlet of a conveying storage bin to separate the dust and the wool tops, only clean materials are allowed to enter the bin, the most commonly used conveying dust remover at present is a cyclone separator, partial dust and conveying materials are separated from conveying airflow by utilizing centrifugal force generated by rotation, the cyclone separator is suitable for purifying non-viscous non-fibrous dry dust larger than 5-10 mu m due to the characteristics of the cyclone separator, the separable range is narrow, three different large media such as the materials, the dust, the wool tops and the like are required to be separated from the airflow during conveying, and the dust removing effect of the cyclone separator is poor.

With the increasingly strict requirements on the product quality in the downstream, particularly for polyester films used for optical applications, the requirement on the dust content of raw materials in the production is lower, dust and wool tops in conveyed materials need to be removed and separated as far as possible, and a simple, practical and efficient conveying dust remover is very important for reducing the production cost and improving the product quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a terminal high-efficient dust remover of granule pneumatic conveying solves cyclone's shortcoming problem, and it is including dust remover barrel, feeding elbow, material export, dust and gas outlet, fender material ring, lower awl cover, branch material awl, water conservancy diversion awl ring, last awl cover. The feeding elbow is upwards arranged at the lower part of the dust remover cylinder, and a lower conical cover is arranged above the feeding elbow. The lower cone cover and the upper cone cover are respectively fixed on the inner wall of the dust remover barrel through a plurality of supporting plates in a welding manner. The material distributing cone is welded at the inner top of the lower cone cover, and the material blocking ring is welded at the lower edge of the lower cone cover. The flow guide conical ring is welded and fixed on the upper part of the dust remover barrel. The dust and gas outlets may be connected by other dust collection means.

The utility model provides a technical scheme that its technical problem adopted is: the materials and the dust are separated by using gravity, the gas, the materials and the dust enter the barrel of the dust remover and then are blown upwards, the materials fall down by the gravity after being scattered in the lower conical cover, and the dust is discharged from the top under the driving of the conveying airflow without any other power drive.

The lower cone cover, the material separating cone and the material blocking ring are integrally located above the feeding elbow, and are welded and fixed on the inner wall of the dust remover barrel to form an annular gap with the inner wall of the barrel.

The material distributing cone is welded on the inner top of the lower cone cover;

the flow guide conical ring is welded and fixed on the inner wall of the upper part of the cylinder and is positioned above the lower conical cover;

the upper cone cover is welded and fixed on the inner wall of the upper part of the cylinder body and is positioned above the flow guide cone ring.

The material outlet is connected with the inlet of the storage bin;

the dust and gas outlet is connected with the inlet of the dust collecting device;

adopt the utility model discloses the dust remover, equipment height is only 70% of ordinary cyclone, and the diameter is only 50% of other similar dust removers, and dust collection efficiency is more than 99%.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

in the figure: 1. a feeding elbow; 2. a dust collector cylinder; 3. a material blocking ring; 4. a material separating cone; 5. a lower cone cover; 6. the middle section is connected with a flange; 7. a diversion cone ring; 8. an upper cone cover 9 is used for dust and gas outlet; 10. and (5) material outlet.

Detailed Description

The equipment device according to the embodiment is an improvement on the basis of a shunting countercurrent cleaner and is used for positive-pressure conveying of polyester particles, and mainly comprises a dust remover barrel, a feeding elbow, a material outlet, a dust and gas outlet, a material retaining ring, a lower cone cover, a material distributing cone, a flow guide cone ring and an upper cone cover. The feeding elbow is upwards arranged at the lower part of the dust remover cylinder, and a lower conical cover is arranged above the feeding elbow. The lower cone cover and the upper cone cover are respectively fixed on the inner wall of the dust remover barrel through a plurality of supporting plates in a welding manner. The material distributing cone is welded at the inner top of the lower cone cover, and the material blocking ring is welded at the lower edge of the lower cone cover. The flow guide conical ring is welded and fixed on the upper part of the dust remover barrel. The cylinder body is divided into an upper part and a lower part which are connected by a middle subsection connecting flange, so that the welding construction of an internal equipment structure is facilitated. The dust and gas outlets may be connected by other dust collection means.

The concrete structure and the process are as follows: the air flow containing materials and dust enters the barrel of the dust collector through the feeding elbow, is sprayed out at a conveying speed upwards, the speed is generally 18-25m/s, after an air flow group touches the lower cone cover and the material separating cone, the air flow group is scattered to reduce the speed and change the direction to move downwards, the material blocking ring can effectively block the materials from splashing outside the material blocking ring, an annular gap is formed between the material blocking ring and the barrel of the dust collector, the air flow speed at the annular gap is far less than the suspension speed of the materials and generally ranges from 1.5 m/s to 2.5m/s, so that the dust can smoothly rise, the materials fall by self weight, and the height and the diameter of equipment can be greatly reduced by the material blocking and distributing device consisting of the lower cone cover, the material separating cone and the material; the airflow carries dust and a small part of materials to continuously rise, the materials collide with the guide ring cone and the upper cone cover to be folded and collided to fall in the process of descending the speed and rising, and meanwhile, the dust is accelerated to be discharged upwards due to the reduction of the ventilation area.

Adopt the utility model discloses a production facility, it is clean to carry the material, and dust collection efficiency exceeds 99%. The influence of dust and wool tops on the quality of downstream products is reduced, the diameter of equipment is small, the equipment cost is reduced, the height of a workshop can be reduced due to the low height of the equipment, and extra power energy consumption is not needed.

The overall dimension of the pneumatic terminal dust collector can be determined according to the actual air flow, and the purpose is to let those skilled in the art understand the contents of the present invention and implement the present invention, and it is not limited to the present invention, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a terminal high-efficient dust remover of granule pneumatic conveying, is including feeding elbow, dust remover barrel, fender material ring, branch material awl, lower awl cover, middle segmentation flange, water conservancy diversion awl ring, go up awl cover, dust and gas outlet, material outlet, its characterized in that: the feeding elbow is upwards arranged at the lower part of the dust remover cylinder, and a lower conical cover is arranged above the feeding elbow; the lower cone cover and the upper cone cover are respectively fixed on the inner wall of the dust remover barrel through a plurality of supporting plates in a welding way; the material distributing cone is welded at the inner top of the lower cone cover, and the material blocking ring is welded at the lower edge of the lower cone cover; the flow guide conical ring is welded and fixed on the upper part of the dust remover barrel.

2. The high-efficiency dust remover for the particle pneumatic conveying tail end, as claimed in claim 1, is characterized in that the lower cone cover (5), the material separating cone (4) and the material blocking ring (3) are integrally fixed above the feeding elbow (1) to break up the conveying airflow, change the direction and reduce the speed.

3. The dust collector of claim 1, wherein the flow guiding conical ring (7) is located above the lower conical cover (5) to change the direction of air flow and prevent the material from directly discharging from above the annular gap.

4. The dust collector of claim 1, wherein the upper cone cover (8) is located above the flow guiding cone ring (7) to change the direction of the air flow, so that the material falls down at a reduced speed when changing the direction.

5. The high-efficiency dust collector at the pneumatic conveying end of particles as claimed in claim 1, wherein the air flow velocities at the dust and gas outlet (9) and the material outlet (10) are close to the suspension velocity of the material by 8-10 m/s.

6. The high-efficiency dust collector at the particle pneumatic conveying end of claim 2, wherein an annular gap is formed between the material stopping ring (3) and the cylinder body (2), and the air flow speed at the annular gap is 1.5-2.5 m/s.