CN116040324A

CN116040324A - Material gas separation valve

Info

Publication number: CN116040324A
Application number: CN202310019104.6A
Authority: CN
Inventors: 赵峰; 王向东; 柳轶明; 姚中海; 陈小刚; 刘志刚; 王金思
Original assignee: Cofco Engineering Equipment Zhangjiakou Co ltd
Current assignee: Cofco Engineering Equipment Zhangjiakou Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-02

Abstract

The invention discloses a material-gas separation valve, which relates to the field of powder pneumatic conveying, and comprises a valve body, wherein a first channel and a second channel are arranged in the valve body, the first channel is communicated with the second channel, a T-shaped channel structure is formed after the first channel is communicated with the second channel, a material-gas baffle is eccentrically arranged in the second channel, and the material-gas baffle separates the second channel into a discharging channel and an air flow channel; the valve body is internally provided with a rotatable valve core, and when the valve core rotates to a horizontal state, the outer edges of the valve core are contacted with the inner wall of the port on the second channel; when the valve core rotates to a vertical state, the outer edge of the upper part of the valve core is contacted with the inner wall of the first channel, and the outer edge of the lower part of the valve core is contacted with the top of the material air partition plate. According to the invention, powder is directly put into the bin during pneumatic conveying and discharging, and the separated air flow returns to enter the main path, so that a cyclone separator and a pulse dust collector are not required to be arranged independently during branch discharging, the equipment investment is reduced, and the civil engineering investment is saved.

Description

Material gas separation valve

Technical Field

The invention relates to the field of pneumatic powder conveying, in particular to a material-gas separation valve.

Background

The existing powder pneumatic conveying device is characterized in that a two-way valve is arranged on a main path, when a branch path is required to discharge, the two-way valve is switched to the branch path from the main path, and the tail end of the branch path is used for discharging. The discharging of the tail end branch is divided into two forms, wherein the first form is that materials enter a cyclone separator, the materials are settled, and are discharged through a discharging air-stop device after settling, and air flow containing a small amount of dust enters a collecting net through an air suction inlet of the cyclone separator to carry out concentrated dust removal; the second is that the tail end of the branch is provided with a bin, the top of the bin is provided with an inserted pulse dust collector, the material is settled after entering the bin, and the air flow containing a small amount of dust is filtered and discharged through the inserted pulse dust collector at the top of the bin.

The two discharging modes at the tail end of the existing pneumatic conveying system have the defects that the first type of discharging mode is that after the first type of discharging mode is settled by a cyclone separator, air flow containing a small amount of dust enters a collecting net, the content of the powder is about 2%, the powder is collected again after being filtered by a pulse dust collector, and the powder can only be degraded for use and is waste for a flour mill and a food mill. The pulse when inserting is installed to every storehouse top of second kind, and the material that filters out can fall into the storehouse and collect naturally, but every storehouse needs to be equipped with one set of dust pelletizing system, and the cost is higher, has the requirement to the installation height in addition, needs to stay enough height when the technology design, and civil engineering cost increases.

Disclosure of Invention

Based on the above problems, the invention aims to provide a material-gas separation valve, wherein the material-gas separation valve is arranged on a main path to replace a two-way valve, the material-gas separation valve is used for discharging powder, and air flow returns to the main path through a material-gas separation valve channel to achieve the purpose of material-gas separation.

The invention adopts the following technical scheme:

the invention provides a material-gas separation valve, which comprises a valve body, wherein a first channel and a second channel are arranged in the valve body, the first channel is communicated with the second channel, a T-shaped channel structure is formed after the first channel is communicated with the second channel, a material-gas separation plate is eccentrically arranged in the second channel, and the material-gas separation plate separates the second channel into a discharging channel and an air flow channel;

the valve body is internally provided with a rotatable valve core, and when the valve core rotates to a horizontal state, the outer edges of the valve core are contacted with the inner wall of the upper port of the second channel; when the valve core rotates to a vertical state, the upper outer edge of the valve core is in contact with the inner wall of the first channel, and the lower outer edge of the valve core is in contact with the top of the material-gas separation plate.

Preferably, a rotating shaft is arranged on one side of the valve core, the rotating shaft is fixed with the valve core, two ends of the rotating shaft are rotationally connected to the valve body, and one end of the rotating shaft is in power connection with the driving device.

Preferably, detachable valve covers are arranged on two sides of the valve body, and the rotating shaft is rotatably connected to the valve covers.

Preferably, the valve cover is mounted on the valve body by bolts.

Preferably, the valve cover on one side is connected with the driving device through a mounting bracket.

Preferably, the driving device is a pneumatic actuator, and an electromagnetic valve for controlling the air passage is arranged on the pneumatic actuator.

Preferably, the two ports of the first channel are both provided with pipelines, the end parts of the pipelines are provided with pipeline connecting flanges, and the pipeline connecting flanges are connected with the valve body through bolts.

Preferably, a discharge port flange is arranged at the lower port of the second channel.

Compared with the prior art, the invention has the beneficial technical effects that:

according to the invention, powder is directly put into the bin during pneumatic conveying and discharging, and the separated air flow returns to enter the main path, so that a cyclone separator and a pulse dust collector are not required to be arranged independently during branch discharging, the equipment investment is reduced, and the civil engineering investment is saved.

Drawings

The invention is further described with reference to the following description of the drawings.

FIG. 1 is a schematic top view of a feed gas separation valve of the present invention;

FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 3 is a schematic view of the structure of the feed gas separation valve in the unloading state;

FIG. 4 is a schematic view showing the structure of the feed gas separating valve in the transportation state.

Reference numerals illustrate: 1. a valve body; 101. a first channel; 102. a second channel; 102-1, a discharge channel; 102-2, an airflow channel; 2. a material gas separator; 3. a valve core; 4. a rotating shaft; 5. a driving device; 6. a valve cover; 7. a mounting bracket; 8. an electromagnetic valve; 9. a pipe; 901. a pipe connection flange; 10. and a discharge port flange.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the embodiment discloses a gas-material separating valve, which comprises a valve body 1, wherein a first channel 101 and a second channel 102 are arranged in the valve body 1, the first channel 101 is communicated with the second channel 102, a T-shaped channel structure is formed after the first channel 101 is communicated with the second channel 102, a gas-material separating plate 2 is eccentrically arranged in the second channel 102, and the gas-material separating plate 2 separates the second channel 102 into a discharging channel 102-1 and an air flow channel 102-2.

The rotatable valve core 3 is arranged in the valve body 1, and when the valve core 3 rotates to a horizontal state, the outer edges of the valve core 3 are contacted with the inner wall of the upper port of the second channel 102; when the valve cartridge 3 is rotated to the vertical state, the upper outer edge of the valve cartridge 3 is in contact with the inner wall of the first passage 101, and the lower outer edge of the valve cartridge 3 is in contact with the top of the charge air spacer 2.

The material gas separation valve has two working states:

in the unloading state, as shown in fig. 3, the valve body 3 is rotated to the vertical state, and at this time, the first passage 101 at the left side portion of the valve body 3 communicates with the unloading passage 102-1, and the first passage 101 at the right side portion of the valve body 3 communicates with the air flow passage 102-2. In this state, the mixture of the powder and the air flow enters the discharging channel 102-1 from the first channel 101 at the left side part of the valve core 3, the powder moves downward directly under the action of gravity and inertia, and the air flow bypasses the lower end of the material-air separator 2 and flows into the air flow channel 102-2, so that the separation of the material and the air is realized, and the air flow after the separation flows out through the first channel 101 at the right side part of the valve core 3.

In another transportation state, as shown in fig. 4, the valve core 3 is rotated to a horizontal state, at this time, the valve core 3 completely separates the first passage 101 from the second passage 102, and in this state, powder and air flow normally pass through the gas-feed separation valve, which functions as a pipe.

In this embodiment, a rotary shaft 4 is disposed on one side of the valve core 3, the rotary shaft 4 is fixed with the valve core 3, two ends of the rotary shaft 4 are both rotatably connected to the valve body 1, and one end of the rotary shaft 4 is in power connection with the driving device 5. The driving device 5 is a pneumatic actuator in the embodiment, and the pneumatic actuator is provided with an electromagnetic valve 8 for controlling the air path, and the action of the pneumatic actuator can be controlled through the electromagnetic valve 8.

In order to be convenient for overhaul the internal valve core 3, two sides of the valve body 1 are provided with detachable valve caps 6, the valve caps 6 can be fixed on the valve body 1 by bolts, wherein the end part of the rotating shaft 4 is rotationally connected to the valve caps 6 through a bearing structure. Wherein the valve cap 6 at the side close to the driving means 5 is connected to the driving means 5 by means of a mounting bracket 7,

in this embodiment, both ports of the first channel 101 are provided with pipes 9, and pipe connection flanges 901 are welded to the ends of the pipes 9, and the pipe connection flanges 901 are connected to the valve body 1 by bolts.

A discharge port flange 10 is arranged at the lower port of the second channel 102, and the discharge port flange 10 is connected with a bin below through bolts.

The material-gas separation valve disclosed in the embodiment realizes the direct feeding of powder into a bin during pneumatic conveying and discharging, and the air flow containing a small amount of dust materials (about 2%) directly enters a main pipeline to return to a raw material bin, so that the waste is avoided, the value of the powder is improved, and the factory loss is reduced; and when the branch is discharged, an independent cyclone separator and a pulse dust collector are not required to be arranged, so that the equipment investment is reduced, and the civil engineering investment is saved.

The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims

1. A feed gas separating valve, characterized in that: the novel valve comprises a valve body (1), wherein a first channel (101) and a second channel (102) are arranged in the valve body (1), the first channel (101) is communicated with the second channel (102), a T-shaped channel structure is formed after the first channel (101) is communicated with the second channel (102), a material air baffle (2) is eccentrically arranged in the second channel (102), and the material air baffle (2) separates the second channel (102) into a discharging channel (102-1) and an air flow channel (102-2);

a rotatable valve core (3) is arranged in the valve body (1), and when the valve core (3) rotates to a horizontal state, the outer edges of the valve core (3) are contacted with the inner wall of the upper port of the second channel (102); when the valve core (3) rotates to a vertical state, the upper outer edge of the valve core (3) is in contact with the inner wall of the first channel (101), and the lower outer edge of the valve core (3) is in contact with the top of the material air partition plate (2).

2. The feed gas separation valve of claim 1, wherein: one side of the valve core (3) is provided with a rotating shaft (4), the rotating shaft (4) is fixed with the valve core (3), two ends of the rotating shaft (4) are rotationally connected to the valve body (1), and one end of the rotating shaft (4) is in power connection with the driving device (5).

3. The feed gas separation valve of claim 2, wherein: the two sides of the valve body (1) are provided with detachable valve covers (6), and the rotating shaft (4) is rotationally connected to the valve covers (6).

4. A feed gas separation valve according to claim 3, wherein: the valve cover (6) is mounted on the valve body (1) through bolts.

5. A feed gas separation valve according to claim 3, wherein: one of the valve caps (6) is connected with the driving device (5) through a mounting bracket (7).

6. The feed gas separation valve of claim 5, wherein: the driving device (5) is a pneumatic actuator, and an electromagnetic valve (8) for controlling an air path is arranged on the pneumatic actuator.

7. The feed gas separation valve of claim 1, wherein: both ends of the first channel (101) are provided with pipelines (9), the end parts of the pipelines (9) are provided with pipeline connecting flanges (901), and the pipeline connecting flanges (901) are connected with the valve body (1) through bolts.

8. The feed gas separation valve of claim 1, wherein: the lower port of the second channel (102) is provided with a discharge port flange (10).