CN219469030U

CN219469030U - Novel pneumatic conveying distributor

Info

Publication number: CN219469030U
Application number: CN202320695741.0U
Authority: CN
Inventors: 于舰; 杨鹏举; 汪建柱; 刘忠伟; 李发健; 朱子昂; 朱丽云
Original assignee: China University of Petroleum East China
Current assignee: China University of Petroleum East China
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-08-04
Anticipated expiration: 2033-04-03

Abstract

The utility model provides a novel pneumatic conveying distributor, which comprises a distribution bin, an inlet short pipe and an outlet short pipe, wherein the distribution bin comprises an expanding section, a reducing inner member, a column section and a sealing head; the upper end of the inlet short pipe is connected with the diameter expansion section, and the outlet short pipe is symmetrically arranged on the column section; the joint of the column section and the expanding section is provided with a diameter-reduced inner member, and an annular circulation area is arranged between the diameter-reduced inner member and the column section; the top of the distribution bin is sealed by a seal head. The beneficial effects of the utility model are as follows: when the pneumatic conveying system operates, particles enter the expanding section from the inlet short pipe of the distributor, flow is stabilized, and then are collected through the reducing inner member, so that the particles are concentrated in the center of the distributor and impact the central area of the sealing head, the particles are guaranteed to be uniformly distributed around after impact, finally flow out through the symmetrical outlet short pipe, and in addition, the lower end of the distributor is supplemented with air through the annular circulation area so as to avoid particle blockage. The utility model has the advantages of uniform distribution of multiple branches, difficult blockage and the like.

Description

Novel pneumatic conveying distributor

Technical Field

The utility model belongs to the technical field of gas-solid two-phase conveying, and particularly relates to a novel pneumatic conveying distributor.

Background

The pneumatic conveying device is gradually popularized in China from 80 years in the world, the positive pressure pneumatic conveying technology is widely adopted for the long-distance one-to-many conveying of the granular materials at present, and the technology is quite mature in domestic application. The pneumatic conveying technology for conveying the granular materials has the characteristics of high productivity, simple structure, convenient operation, high automation degree, sealing, environmental protection, less pollution and the like, and is also widely applied to other industries such as food, steel, chemical industry and the like. The distributor is an indispensable component in the pneumatic conveying technology and has the function of distributing materials so as to reduce the consumption of a main pipe and simplify the system.

However, the conventional distributor has certain disadvantages, for example, in order to solve the problem of one-to-many material conveying, patent CN201820509847.6 discloses a pneumatic conveying distributor, which is a silo type and is horizontally arranged, so that the purpose of distributing materials in one part is achieved. However, this arrangement makes the material distribution uneven and tends to form accumulation between the branch outlets, resulting in blockage of the distributor and affecting the operation of the system.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a novel pneumatic conveying distributor, which solves the problems of uneven distribution, easy blockage and the like of the existing distributor.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a novel pneumatic conveying dispenser, comprising: the distribution bin, the inlet short pipe, the outlet short pipe I and the outlet short pipe II. The distribution bin comprises an expanding section, a reducing inner member, a column section and a seal head, the upper end of the inlet short pipe is connected with the expanding section, and the outlet short pipe is symmetrically arranged on the column section; the joint of the column section and the expanding section is provided with a diameter-reduced inner member, and an annular circulation area is arranged between the diameter-reduced inner member and the column section; the top of the distribution bin is sealed by a sealing head.

The distribution bin adopts an expanded diameter type, and the inner diameter of the distribution bin is 2 times of that of the inlet short pipe.

The first outlet short pipe and the second outlet short pipe are symmetrically arranged on the column section so as to realize a one-to-two conveying process.

The inner diameters of the two outlet short pipes are equal to the inner diameter of the inlet short pipe, and the distance between the central line of the outlet pipe and the bottom end of the column section is 1.125 times the inner diameter of the inlet pipe.

And a reducing inner member is arranged in the distribution bin, so that particles subjected to turbulence of the expanding section are concentrated in the geometric center area of the distributor.

The outlet at the upper end of the reduced diameter inner member is flush with the upper end wall surface of the outlet short pipe; an annular flow area is provided between the reduced diameter inner member and the column section to reduce particle accumulation.

Compared with the prior art, the utility model has the beneficial effects that: when the pneumatic conveying system operates, particles enter the expanding section from the inlet short pipe of the distributor and are collected through the reducing inner member after being stabilized, so that the particles are concentrated in the center of the distributor and impact the central area of the sealing head, the particles are guaranteed to be uniformly distributed around after impact, finally flow out through the symmetrical outlet short pipe, and in addition, the lower end of the distributor is supplemented with air through the annular circulation area to avoid particle blockage.

Drawings

Fig. 1 is a cross-sectional view of a dispenser according to the present utility model.

Fig. 2 is a schematic diagram of a split-split dispenser according to the present utility model.

Fig. 3 is a schematic diagram of a one-to-three dispenser structure in accordance with the present utility model.

Fig. 4 is a schematic diagram of a quarter-split dispenser according to the present utility model.

Wherein 1-inlet spool; 2-expanding the diameter section; 3-column section; 4-reducing inner member; 5-end socket; 6, a distribution bin; 7-outlet spool one; 8-outlet short pipe II.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the drawings and examples.

The utility model relates to a novel pneumatic conveying distributor, which is used for pneumatically conveying and distributing materials, is particularly suitable for granular materials and the like, and is characterized by relatively poor flowability and certain dead weight, and is relatively difficult to uniformly distribute for a pneumatic conveying system. The utility model increases the diameter-reduced inner member, can evenly distribute materials and reduce the accumulation and blockage of the materials.

A novel pneumatic conveying dispenser, characterized in that it comprises: a distribution bin 6, an inlet short pipe 1, an outlet short pipe 7 and an outlet short pipe 8. The distribution bin 6 comprises an expanding section 2, a reducing inner member 4, a column section 3 and a sealing head 5.

As shown in fig. 1 and 2, the main body of the utility model is a distribution bin 6, an inlet short pipe 1, an outlet short pipe 7 and an outlet short pipe 8, wherein the distribution bin 6 comprises an expanding section 2, a reducing inner member 4, a column section 3 and a sealing head 5.

The working process comprises the following steps:

during operation, particles enter the distribution bin 6 from the inlet short pipe 1, are collected through the diameter-reducing inner member 4 after being turbulent by the diameter-expanding section 2, are concentrated in the center of the distributor 6 and impact the center area of the seal head 5, so that the particles are uniformly distributed around after impact, and the particles are prevented from blocking in the annular circulation area and flow out through the symmetrical outlet short pipe.

In the utility model, the distribution bin 6 adopts an expanded diameter, and the inner diameter of the distribution bin 6 is the inner diameter of the inlet short pipe, in the utility model, the outlet short pipe I7 and the outlet short pipe II 8 are symmetrically arranged on the column section 3, so that the one-to-two conveying process is realized.

In the utility model, the inner diameters of the two outlet short pipes are equal to the inner diameter of the inlet short pipe 1, and the distance between the central line of the outlet short pipes and the bottom end of the column section is 1.125 times the inner diameter of the inlet short pipe 1.

In the utility model, the distribution bin 6 is internally provided with the reduced diameter inner member 4, so that particles subjected to turbulent flow of the diameter expansion section 2 are concentrated in the geometric center area of the distributor.

In the utility model, the outlet of the upper end of the diameter-reduced inner member 4 is flush with the upper end wall surface of the outlet short pipe I7; an annular circulation area is arranged between the diameter-reduced inner member 4 and the column section 3 for supplementing air so as to reduce particle accumulation.

While the foregoing has been provided for the purpose of illustrating a preferred embodiment of the present utility model, it will be appreciated that the present utility model is not to be construed as limited to the embodiment of the present utility model, e.g., the one-to-three and one-to-four dispensers illustrated in fig. 3 and 4, but it will be appreciated that various changes, modifications, substitutions and alterations may be made therein without departing from the spirit and principles of the present utility model, the novel scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel pneumatic conveying dispenser, characterized in that it comprises: the distribution bin (6), the inlet short pipe (1), the outlet short pipe I (7) and the outlet short pipe II (8), wherein the distribution bin (6) comprises an expanding section (2), a reducing inner member (4), a column section (3) and a seal head (5); the upper end of the inlet short pipe (1) is connected with the expanding section (2), and the outlet short pipe I (7) and the outlet short pipe II (8) are arranged on the column section.

2. A novel pneumatic conveying distributor as claimed in claim 1, wherein the distribution bin (6) is of expanded diameter, and the inner diameter of the distribution bin (6) is 2 times the inner diameter of the inlet short tube (1).

3. A novel pneumatic conveying distributor according to claim 1, wherein the first outlet short pipe (7) and the second outlet short pipe (8) are symmetrically arranged on the column section (3) so as to realize a one-to-two conveying process.

4. A novel pneumatic conveying distributor according to claim 1, wherein the inner diameters of the two outlet short pipes are equal to the inner diameter of the inlet short pipe (1), and the central line of the outlet short pipe is 1.125 times the inner diameter of the inlet short pipe (1) from the bottom end of the column section (3).

5. A novel pneumatic conveying distributor as claimed in claim 1, wherein the distribution bin (6) is internally provided with a reduced diameter inner member (4) for concentrating particles turbulent by the expanding section (2) to the geometric central area of the distributor.

6. The novel pneumatic conveying distributor according to claim 1, wherein the outlet at the upper end of the reduced diameter inner member (4) is flush with the upper end wall surface of the outlet short pipe I (7); an annular flow area is arranged between the diameter-reduced inner member (4) and the column section (3) so as to reduce particle accumulation.