Press-in type ventilation rectifying device
By adjusting the fresh airflow through the guide grille and shell, combined with flexible air bags and plastic air outlets, the problem of turbulent airflow in traditional ventilation systems is solved, improving ventilation efficiency and waste air discharge efficiency, and ensuring mine operation safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2026-03-27
AI Technical Summary
In traditional forced ventilation systems in mining areas, the airflow at the outlet of the circular ventilation duct is in a high-speed rotating turbulent state, resulting in a wide diffusion range of fresh air, rapid kinetic energy attenuation, unclear exhaust path of polluted air, low ventilation efficiency, and a threat to operational safety.
The system employs a flow guide grid and outer shell to regulate the flow of fresh air, controls the direction of airflow through flexible air bags and plastic air outlets, and combines wear-resistant and high-temperature resistant materials to adapt to different mining environments, thereby improving the orderliness of airflow and ventilation efficiency.
It effectively reduces airflow turbulence, improves the ability of fresh air to clean the work surface, enhances the efficiency of waste air discharge, and ensures the safety of the work surface.
Smart Images
Figure CN224049245U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of mine ventilation, in particular to a pressure-in ventilation rectifying device. BACKGROUND
[0002] In the related art, the traditional pressure-in ventilation system of the mining face adopts a circular cross-section local fan and a wind duct to transport fresh air flow to the working face, and uses air pressure to extrude the dirty air to the external roadway. However, due to the high-speed rotating turbulent state of the air flow at the outlet of the circular wind duct, the fresh air has a wide diffusion range and a fast kinetic energy decay after reaching the working face, which leads to an unclear dirty air discharge path and low ventilation efficiency. The existing technology lacks effective control means for the air flow form, which easily causes the retention of blast smoke at the working face and threatens the safety of the operation.
[0003] Therefore, it is necessary to design a pressure-in ventilation rectifying device that can effectively improve the ventilation effect of the mine and improve the blast smoke discharge efficiency. CONTENT OF THE UTILITY MODEL
[0004] To solve or partially solve the problems in the related art, the present application provides a pressure-in ventilation rectifying device, aiming to solve the problem that the current ventilation system lacks effective control means for the air flow form.
[0005] The present application provides a pressure-in ventilation rectifying device, comprising:
[0006] a circular joint, a pressure-in wind duct, a flexible air bag, a flow guide grid, a shell, and a plastic air outlet;
[0007] One end of the flexible air bag is installed on the pressure-in wind duct through the circular joint;
[0008] The other end of the flexible air bag is connected to the shell, the shell is a trapezoidal shell, and the shell has grid plates distributed in a fan shape inside, which separates the shell into two or more flow guide grids to make the fresh air flow along a predetermined route;
[0009] The plastic air outlet is installed on the air outlet of the shell, and the plastic air outlet can be bent to fixedly control the direction of the air flow.
[0010] Optionally, in some embodiments, the flexible air bag is made of wear-resistant and high-temperature-resistant rubber or synthetic fiber material to withstand the air flow pressure and maintain sufficient flexibility.
[0011] Optionally, in some embodiments, the shell and the flow guide grid are made of engineering plastic or metal material, which not only reduces the overall weight but also ensures sufficient strength and durability.
[0012] Optionally, in some embodiments, the plastic air outlet is a square plastic pipe made of polypropylene material.
[0013] Optionally, in some embodiments, the inner diameter of the circular joint is greater than the outer diameter of the press-in duct.
[0014] The technical solutions provided by the application can have the following beneficial effects:
[0015] The fresh air flow is orderly adjusted by the flow guide grid and the shell, the air flow disorder phenomenon is reduced, the fresh air can effectively wash the working face, carry the dirty air and discharge, and the ventilation efficiency is improved; the flexible air bag and the plastic air outlet can be adjusted to adapt to the ventilation environment and working conditions of different mines, and the working face smoke discharge efficiency is effectively improved.
[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, and in which exemplary embodiments of the present application are shown.
[0018] Figure 1 is a structural schematic diagram of the press-in ventilation rectifier device shown in the embodiments of the application.
[0019] The drawings show the embodiments of the application. DETAILED DESCRIPTION
[0020] The embodiments of the application will be described in greater detail below with reference to the accompanying drawings. Although the embodiments of the application are shown in the drawings, it should be understood that the application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the application more thorough and complete, and to fully convey the scope of the application to those skilled in the art.
[0021] It should be understood that although the terms "first", "second", "third" and the like can be used to describe various information in the present application, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0022] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0023] Unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] The traditional pressure ventilation system of the stope adopts circular cross section local fan and air duct to transport fresh air flow to the working face, and uses air pressure to extrude the dirty air to the external roadway. However, due to the high-speed rotating turbulent state of the air flow at the outlet of the circular air duct, the fresh air diffuses widely and the kinetic energy decays quickly after reaching the working face, resulting in unclear dirty air discharge path and low ventilation efficiency. There is a lack of effective control means for the air flow form in the prior art, which easily causes the retention of the working face gun smoke, threatening the safety of the operation.
[0025] In view of the above problems, the embodiment of the present application provides a pressure ventilation rectifying device, which can orderly adjust the fresh air flow through the flow guide grid and the shell, reduce the air flow turbulence, make the fresh air more effectively wash the working face, carry out the dirty air, and thus improve the ventilation efficiency; by adjusting the flexible air bag, the plastic air outlet, the ventilation environment and the operation condition of different mines can be adapted, and the gun smoke discharge efficiency of the working face is effectively improved.
[0026] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.
[0027] Figure 1 is a structural schematic diagram of the pressure ventilation rectifying device shown in the embodiment of the present application.
[0028] Referring to Figure 1 A pressure ventilation rectifying device, comprising:
[0029] The circular joint 1, the pressure air duct 2, the flexible air bag 4, the flow guide grid 5, the shell 6 and the plastic air outlet 7;
[0030] The flexible air bag 4 is installed at one end of the press-in air duct 2 through the circular joint 1, and the inner diameter of the circular joint 1 is larger than the outer diameter of the press-in air duct 2, facilitating the installation of the flexible air bag 4. The circular joint 1 is made of high-strength and corrosion-resistant alloy material to ensure stable connection with the press-in air duct or the fan, and at the same time, resist the invasion of moisture and corrosive gases in the mine environment. The other end of the flexible air bag 4 is connected to the shell 6, and the flexible air bag 4 is made of wear-resistant and high-temperature-resistant rubber or synthetic fiber material to withstand the air flow pressure and maintain sufficient flexibility, facilitating the adjustment of the installation position of the rectifier.
[0031] The shell 6 is a trapezoidal shell, and the shell 6 is divided into a plurality of flow guide grilles 5 in the form of a fan, so that the fresh air flows along the predetermined route to be emitted in the form of vertical strips. The shell 6 and the flow guide grilles 5 are made of engineering plastic or metal material, which not only reduces the overall weight, but also ensures sufficient strength and durability.
[0032] The plastic air outlet 7 is installed on the air outlet of the shell 6, and the plastic air outlet 7 can be bent to control the direction of the air flow. The plastic air outlet 7 is a square plastic pipe made of polypropylene material to ensure good shape stability and service life even when the air direction is frequently adjusted.
[0033] During the installation of the press-in ventilation rectifier device, first, according to the specific conditions of the mine working face, the appropriate installation position is selected. The rectifier device is tightly connected with the press-in air duct 2 through the flexible air bag 4 and the circular joint 1, ensuring no air leakage. Then, according to the required air flow direction and speed, the bending angle and position of the flexible air bag 4 and the plastic air outlet 7 are adjusted to achieve the best ventilation effect.
[0034] During the field ventilation, the rectifier device is installed on the side of the working face, and the rectifier device is connected with the press-in air duct 2 through the circular joint 1. After the fresh air 3 enters the rectifier device through the circular joint 1, it reaches the rectification section through the flexible air bag 4, and is controlled by the flow guide grilles 5 and the shell 6 to flow along the predetermined route, and finally flows out from the plastic air outlet 7 of the rectifier device. The plastic air outlet 7 is bent to control the direction of the air flow.
[0035] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.
Claims
1. A press-in ventilation rectifier device, characterized by, It comprises: a round joint (1), a press-in air duct (2), a flexible air bag (4), a flow guide grid (5), an outer shell (6) and a plastic air outlet (7); one end of the flexible air bag (4) is installed on the press-in air duct (2) through the round joint (1); the other end of the flexible air bag (4) is connected to the outer shell (6), which is a trapezoidal shell, and the inner part of the outer shell (6) is distributed in a fan shape with grid plates, which separates the outer shell (6) into two or more flow guide grids (5) to make the fresh air flow along the established route; the plastic air outlet (7) is installed on the air outlet of the outer shell (6), and the plastic air outlet (7) can be bent to fix and control the direction of the air flow.
2. The press-in ventilation rectifying device according to claim 1, characterized in that: the flexible air bag (4) is made of wear-resistant and high-temperature-resistant rubber or synthetic fiber material to withstand the pressure of the air flow and maintain sufficient flexibility.
3. The press-in ventilation rectifying device according to claim 1, characterized in that: the outer shell (6) and the flow guide grid (5) are made of engineering plastic or metal material, which not only reduces the overall weight, but also ensures sufficient strength and durability.
4. The press-in ventilation rectifying device according to claim 1, characterized in that: the plastic air outlet (7) is a square plastic pipe made of polypropylene material.
5. The press-in ventilation rectifying device according to claim 1, characterized in that: the inner diameter of the round joint (1) is larger than the outer diameter of the press-in air duct (2).