A gas-solid mixing method for light materials

Abstract

The application discloses a gas-resisting rotary mixing device and a light material gas-solid mixing method, which comprises a rotary mixing chamber, one side of the bottom of the rotary mixing chamber is connected with a high-pressure air inlet pipe, and the other side opposite to the one side is connected with a gas-solid mixing discharge pipe, the top end of the rotary mixing chamber is a feeding port, and a discharging cavity is arranged below the feeding port, and a gas-resisting piece capable of preventing gas from flowing upwards is arranged on the inner wall of the discharging cavity. The application can effectively prevent high-pressure gas from flowing upwards into the discharging cavity, is beneficial to the light material into the gas-solid mixing cavity, and thus guarantees the conveying output.

Description

A gas-blocking rotary mixing device and a gas-solid mixing method for lightweight materials Technical Field

[0001] This invention belongs to the field of gas-solid mixing and conveying technology, and in particular relates to a gas-blocking rotary mixing device and a gas-solid mixing method for lightweight materials. Background Technology

[0002] Currently, gas-solid mixing conveying is generally used for large particles and heavy materials. For lightweight materials, such as light powders and small particles, there are difficulties in using high-pressure gas-solid mixing conveying: during the material conveying process, the material is easily affected by the airflow in the mixing chamber, causing the material to float or suspend, preventing the material from falling and mixing with the gas, thus affecting the conveying output.

[0003] Therefore, addressing the shortcomings of the existing technologies has become the focus of efforts for those skilled in the field. Summary of the Invention

[0004] The purpose of this invention is to provide a gas-blocking rotary mixing device and a gas-solid mixing method for lightweight materials, which can completely solve the shortcomings of the prior art.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A gas-blocking rotary mixing device includes a rotary mixing chamber. A high-pressure air inlet pipe is connected to one side of the bottom of the rotary mixing chamber, and a gas-solid mixing outlet pipe is connected to the opposite side. The top of the rotary mixing chamber is a feed inlet, and the bottom of the feed inlet is a discharge chamber. A gas-blocking plate that can prevent gas from flowing upward is provided on the inner wall of the discharge chamber.

[0007] Furthermore, the rotary mixing chamber is a vertical tube, and the inner wall of the feeding chamber is provided with multiple air-blocking plates at equal intervals from top to bottom.

[0008] Furthermore, the air-blocking plate is an inverted frustum-shaped tube.

[0009] Furthermore, the rotary mixing chamber is provided with an inspection port at the bottom, and an end cover is installed on the inspection port.

[0010] Furthermore, the top of the high-pressure air inlet pipe has an upwardly inclined transition section, which is connected to the discharge chamber.

[0011] Furthermore, the diameter of the gas-solid mixing discharge pipe gradually decreases along the airflow direction.

[0012] Furthermore, a rotary valve is connected to the feed inlet at the top of the rotary mixing chamber.

[0013] Furthermore, the high-pressure air inlet pipe is externally connected to a Roots blower or a screw blower.

[0014] Furthermore, a gas-solid mixing chamber is formed at the junction of the rotary mixing chamber with the high-pressure air inlet pipe and the gas-solid mixing outlet pipe.

[0015] A method for gas-solid mixing of lightweight materials includes a gas-blocking rotary mixing device. The device includes a rotary mixing chamber, with a high-pressure air inlet pipe connected to one side of the bottom and a gas-solid mixing outlet pipe connected to the opposite side. The top of the rotary mixing chamber is an inlet, and below the inlet is a discharge chamber. A gas-blocking plate is provided on the inner wall of the discharge chamber to prevent upward flow of gas. The junction of the rotary mixing chamber with the high-pressure air inlet pipe and the gas-solid mixing outlet pipe forms a gas-solid mixing chamber. The method is characterized in that high-pressure gas is input through the high-pressure air inlet pipe, and lightweight materials are input through the inlet. After entering the discharge chamber, the high-pressure gas is blocked by the gas-blocking plate, forming a downward backflow. The lightweight materials are mixed with the high-pressure gas in the mixing chamber and then output through the gas-solid mixing outlet pipe.

[0016] Compared with the prior art, the advantages of the present invention are: simple structure, reasonable design, effective prevention of high-pressure gas from flowing upward into the feeding chamber, which is conducive to bringing lightweight materials into the gas-solid mixing chamber, thereby ensuring the conveying output. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of the present invention. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] As shown in Figure 1, a gas-blocking rotary mixing device includes a rotary mixing chamber 1. A high-pressure air inlet pipe 2 is connected to one side of the bottom of the rotary mixing chamber 1, and a gas-solid mixing outlet pipe 3 is connected to the opposite side. The top of the rotary mixing chamber 1 is a feed inlet 4, and below the feed inlet 4 is a discharge chamber 5. A gas-blocking plate 6 that can prevent gas from flowing upward is provided on the inner wall of the discharge chamber 5.

[0020] The rotary mixing chamber 1 is a vertical tube, and the inner wall of the feeding chamber 5 is provided with four air-blocking plates 6 at equal intervals from top to bottom. The air-blocking plates are inverted frustum-shaped tubes.

[0021] The high-pressure air inlet pipe 2 has an upwardly sloping transition section 7 at its top, which is connected to the discharge chamber 5. The diameter of the gas-solid mixture discharge pipe 3 gradually decreases along the airflow direction. This gradually decreasing diameter design facilitates the collection of the gas-solid mixture before it is discharged through the gas-solid mixture discharge pipe 3.

[0022] The rotary mixing chamber 1 forms a gas-solid mixing cavity 8 at the junction with the high-pressure air inlet pipe 2 and the gas-solid mixing outlet pipe 3.

[0023] The rotary mixing chamber 1 has an inspection port at its bottom, and an end cover 9 is installed on the inspection port.

[0024] The feed inlet 4 at the top of the rotary mixing chamber 1 is connected to a rotary valve 10. The high-pressure air inlet pipe 2 is externally connected to a Roots blower or a screw blower.

[0025] Working principle: Lightweight materials enter the discharge chamber 5 through the feed inlet 4. When the high-pressure gas flowing in from the high-pressure air inlet pipe 2 meets the gas blocking plate 6, the gas blocking plate 6 reverses the upward flow of gas to generate multiple downward sloping backflows. On the one hand, this reduces most of the gas flowing to the rotary valve 10, and on the other hand, the backflow can accelerate the introduction of lightweight materials into the mixing chamber 8.

[0026] A method for gas-solid mixing of lightweight materials includes a gas-blocking rotary mixing device. This device includes a rotary mixing chamber 1, with a high-pressure air inlet pipe 2 connected to one side of its bottom and a gas-solid mixing outlet pipe 3 connected to the opposite side. The top of the rotary mixing chamber 1 is an inlet 4, and below the inlet 4 is a discharge chamber 5. An air-blocking plate 6 is provided on the inner wall of the discharge chamber 5 to prevent upward flow of gas. The junction of the rotary mixing chamber 1 with the high-pressure air inlet pipe 2 and the gas-solid mixing outlet pipe 3 forms a gas-solid mixing chamber 8. High-pressure gas is input through the high-pressure air inlet pipe 2, and lightweight materials are input through the inlet 4. After entering the discharge chamber 5, the high-pressure gas is blocked by the air-blocking plate 6, forming a downward backflow. The lightweight materials are mixed with the high-pressure gas in the mixing chamber 8 and then output through the gas-solid mixing outlet pipe 3.

[0027] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

[0028] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0029] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0030] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas-blocking rotary mixing device, characterized in that: The device includes a rotary mixing chamber, with a high-pressure air inlet pipe connected to one side of the bottom of the rotary mixing chamber and a gas-solid mixing outlet pipe connected to the opposite side. The top of the rotary mixing chamber is a feed inlet, and below the feed inlet is a discharge chamber. Multiple air-blocking plates are evenly spaced from top to bottom on the inner wall of the discharge chamber. The air-blocking plates are inverted frustum-shaped tubes. The top of the high-pressure air inlet pipe has an upwardly inclined transition section, which is connected to the discharge chamber. The diameter of the gas-solid mixing outlet pipe gradually decreases along the airflow direction. The junction of the rotary mixing chamber with the high-pressure air inlet pipe and the gas-solid mixing outlet pipe forms a gas-solid mixing chamber.

2. The air-blocking rotary mixing device according to claim 1, characterized in that: The rotary mixing chamber is a vertical tube.

3. The air-blocking rotary mixing device according to claim 1, characterized in that: The rotary mixing chamber is provided with an inspection port at the bottom, and an end cover is installed on the inspection port.

4. The air-blocking rotary mixing device according to claim 3, characterized in that: A rotary valve is connected to the feed inlet at the top of the rotary mixing chamber.

5. The air-blocking rotary mixing device according to claim 4, characterized in that: The high-pressure air inlet pipe is externally connected to a Roots blower or a screw blower.

6. A gas-solid mixing method for lightweight materials, based on the gas-resistance rotary mixing device as described in any one of claims 1-5, characterized in that: High-pressure gas is input through the high-pressure inlet pipe, and light materials are input through the feed port. After the high-pressure gas enters the discharge chamber, it is blocked by the gas baffle to form a downward backflow. After the light materials are mixed with the high-pressure gas in the mixing chamber, they are output through the gas-solid mixture discharge pipe.

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