Mining laser acetylene detector

Abstract

The invention discloses a mining laser acetylene detector which comprises a shell, an air chamber is arranged in the shell, an air pump is fixed on the inner wall of one end of the air chamber, the input end of the air pump is communicated with an air inlet pipe, a screen cloth dust removal mechanism is fixed in the air chamber, and the screen cloth dust removal mechanism comprises a metal frame, first screen cloth, second screen cloth and a wavy cloth strip. The first screen cloth and the second screen cloth are connected through a plurality of wave-shaped cloth strips which are evenly arranged at intervals and fixedly connected with the metal frame, a motor is fixed in the air chamber, the output end of the motor is in transmission connection with a rotating disc through a belt, an elastic belt is fixed to the rotating disc, and the other end of the elastic belt is connected with the second screen cloth. An end head is mounted at one end of the shell away from the gas inlet pipe, a laser detection head for detecting acetylene concentration is fixed on the inner side of the end head, and a gas outlet pipe communicated with the internal gas chamber is arranged at the top end of the shell close to the laser detection head. Reliable dust removal is carried out through cooperation of the screen cloth dust removal mechanism and the motor, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of detectors, and in particular to a laser acetylene detector for mining. Background Art

[0002] Acetylene gas is a colorless, flammable and explosive gas. When the concentration of acetylene gas in the air reaches 2.3-72.3%, it is very easy to cause an explosion accident. Therefore, accurate and real-time detection of the concentration of acetylene gas in the mine site is of great significance to ensure production and worker safety. At present, the laser detectors used for acetylene detection on the market, in principle, mostly use lasers to emit fixed wavelength lasers to detect the acetylene mixed gas entering the gas chamber. However, a large amount of dust will be generated around the mine, and the dust will enter the gas chamber and cover the laser probe, affecting the laser detection, thereby reducing the detection accuracy. Summary of the invention

[0003] The purpose of this application is to provide a laser acetylene detector for mining to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a laser acetylene detector for mining, comprising a shell, an air chamber is arranged inside the shell, an air pump is fixedly installed on the inner wall of one end of the air chamber, the input end of the air pump is connected with an air inlet pipe leading to the outside of the shell, a mesh dust removal mechanism is fixedly installed inside the air chamber, the mesh dust removal mechanism comprises a metal frame, a first mesh, a second mesh and a wavy cloth strip, the first mesh and the second mesh are arranged in parallel and are connected by a number of wavy cloth strips arranged evenly spaced, the upper and lower ends of the first mesh and the second mesh are respectively fixedly connected to the inner walls of the upper and lower ends of the metal frame Guide rails are fixedly installed on the upper and lower ends of the inner cavity of the air chamber, and the upper and lower ends of the metal frame are slidably connected to the guide rails. A motor is fixedly installed inside the air chamber, and the output end of the motor is connected to a turntable rotatably connected to the outer shell through a belt drive. An elastic band is fixedly installed on the turntable, and the other end of the elastic band is fixedly connected to the center of one side of the second mesh cloth. An end of the outer shell facing away from the air inlet pipe is installed, and a laser detection head for detecting acetylene concentration is fixedly installed on the inner side of the end head. An air outlet pipe connected to the internal air chamber is provided at the top of the outer shell near the laser detection head, and a flow meter is fixedly installed on the air inlet pipe.

[0005] Preferably, a dust collecting box which can be pulled out from the front side of the shell is slidably connected to the bottom of the shell, and the dust collecting box is located below the front side of the first mesh cloth.

[0006] Preferably, the bottom end of the shell is provided with a connecting sleeve fixedly connected thereto, the bottom end of the connecting sleeve is rotatably connected to a base, and one side of the connecting sleeve is provided with a locking bolt for locking the base and restricting rotation.

[0007] Preferably, fixing nails are installed on the base.

[0008] Preferably, a processor and a power supply are fixedly installed inside the end head, a display is fixedly installed on the outer end of the end head, and the laser detection head, power supply, processor and display are electrically connected.

[0009] Preferably, the end cap and the outer shell are detachably connected by threads.

[0010] Preferably, the mesh dust removal mechanism can be slid and pulled out from the front end of the shell.

[0011] Preferably, the output end of the air pump is connected to a vertically arranged air distribution pipeline, and the air distribution pipeline is connected to a plurality of nozzles evenly spaced apart.

[0012] In summary, the technical effects and advantages of the present invention are as follows:

[0013] In the present invention, the air pump inhales air through the air inlet pipe, and the air enters the air chamber and is sprayed toward the mesh dust removal mechanism. The first mesh intercepts most of the dust, and the second mesh and the wavy cloth strips form the third and second blocking lines. The arrangement of the wavy cloth strips greatly improves the effect of hindering the advancement of fine dust. At the same time, the motor drives the turntable to rotate, and the turntable reciprocates to pull the second mesh. The second mesh pulls the first mesh to vibrate through the wavy cloth strips, which is convenient for vibrating and separating the dust on its surface and facilitating its filtering. In this way, the dust entering the laser detection head is greatly reduced, thereby improving its efficiency in detecting acetylene. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the structure of a laser acetylene detector for mining in an embodiment of the present application;

[0016] Figure 2 This is a schematic cross-sectional view of a laser acetylene detector for mining in an embodiment of the present application;

[0017] Figure 3 A laser acetylene detector for mining in the embodiment of the present application Figure 2A is an enlarged schematic diagram of the structure.

[0018] In the figure: 1. shell; 2. air chamber; 3. air inlet pipe; 4. air pump; 5. mesh dust removal mechanism; 6. motor; 7. turntable; 8. elastic band; 9. dust box; 10. outlet pipe; 11. terminal; 12. laser detection head; 13. processor; 14. power supply; 15. display; 16. air distribution pipeline; 17. flow meter; 18. nozzle; 19. base; 20. fixing nail; 22. connecting sleeve; 23. locking bolt; 24. guide rail; 25. metal frame; 26. first mesh; 27. wavy cloth strip; 28. second mesh. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0022] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0023] Example: Reference Figure 1-3 The laser acetylene detector for mining shown in the figure comprises a shell 1, an air chamber 2 is arranged inside the shell 1, an air pump 4 is fixedly installed on the inner wall of one end of the air chamber 2, an input end of the air pump 4 is connected with an air inlet pipe 3 leading to the outside of the shell 1, a mesh dust removal mechanism 5 is fixedly installed inside the air chamber 2, and the mesh dust removal mechanism 5 comprises a metal frame 25, a first mesh 26, a second mesh 28 and a wavy cloth strip 27, the first mesh 26 and the second mesh 28 are arranged in parallel and the first mesh 26 and the second mesh 28 are separated by a plurality of wavy cloth strips 27 arranged evenly at intervals. 7 is connected, the upper and lower ends of the first mesh cloth 26 and the second mesh cloth 28 are fixedly connected to the upper and lower inner walls of the metal frame 25 respectively, the upper and lower ends of the inner cavity of the air chamber 2 are fixedly installed with guide rails 24, the upper and lower ends of the metal frame 25 are slidably connected to the guide rails 24, a motor 6 is fixedly installed inside the air chamber 2, the output end of the motor 6 is connected to a turntable 7 rotatably connected to the shell 1 through a belt drive, an elastic belt 8 is fixedly installed on the turntable 7, the other end of the elastic belt 8 is fixedly connected to the center of one side of the second mesh cloth 28, and the shell 1 is away from the air inlet.

[0024] A terminal 11 is installed at one end of the tube 3, and a laser detection head 12 for detecting acetylene concentration is fixedly installed on the inner side of the terminal 11. An outlet pipe 10 connected to the internal air chamber is provided at the top of the shell 1 near the laser detection head 12. A flow meter 17 is fixedly installed on the inlet pipe 3 for flow monitoring. The air pump inhales air through the inlet pipe, and the air enters the air chamber and is sprayed toward the mesh dust removal mechanism. The first mesh intercepts most of the dust, and the second mesh and the wavy cloth strips form the third and second defense lines. The setting of the wavy cloth strips greatly improves the effect of hindering the advancement of fine dust. At the same time, the motor drives the turntable to rotate, and the turntable reciprocates to pull the second mesh cloth. The second mesh cloth reciprocates to pull the first mesh cloth to vibrate through the wavy cloth strips, which is convenient for vibrating and separating the dust on its surface and facilitating its filtration. In this way, the dust entering the laser detection head is greatly reduced, thereby improving its efficiency in detecting acetylene.

[0025] With the above structure, a dust box 9 which can be pulled out from the front side of the shell 1 is slidably connected to the bottom of the shell 1, and the dust box 9 is located below the front side of the first mesh 26, and collects dust shaken off the first mesh.

[0026] By means of the above structure: the bottom end of the shell 1 is provided with a connecting sleeve 22 fixedly connected thereto, the bottom end of the connecting sleeve 22 is rotatably connected to the base 19, and one side of the connecting sleeve 22 is provided with a locking bolt 23 for locking the base to limit rotation, so that the entire device can be rotated to adjust the air intake angle and locked by the locking bolt.

[0027] With the above structure, fixing nails 20 are installed on the base 19 to facilitate fixing to the ground.

[0028] With the above structure: the processor 13 and the power supply 14 are fixedly installed inside the terminal 11, the display 15 is fixedly installed on the outer end of the terminal 11, and the laser detection head 12, the power supply 14, the processor 13 and the display 15 are electrically connected.

[0029] By means of the above structure, the terminal 11 and the housing 1 are detachably connected by threads, so that it is convenient to disassemble the terminal to maintain the internal laser detection head.

[0030] By means of the above structure, the mesh dust removal mechanism 5 can be slid out from the front end of the housing 1 for easy replacement or cleaning.

[0031] By means of the above structure: the output end of the air pump 4 is connected to a vertically arranged air distribution pipeline 16, and the air distribution pipeline 16 is connected to a plurality of nozzles 18 evenly spaced, which can reduce the local filtering pressure of the mesh dust removal mechanism and disperse the filtering.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser acetylene detector for mining, comprising a housing (1), characterized in that: An air chamber (2) is provided inside the housing (1), an air pump (4) is fixedly mounted on the inner wall of one end of the air chamber (2), an input end of the air pump (4) is connected to an air inlet pipe (3) leading to the outside of the housing (1), a mesh dust removal mechanism (5) is fixedly mounted inside the air chamber (2), the mesh dust removal mechanism (5) comprises a metal frame (25), a first mesh (26), a second mesh (28) and a wavy cloth strip (27), the first mesh (26) and the second mesh (28) are arranged in parallel and the first mesh (26) and the second mesh (28) are arranged in parallel. The first mesh cloth (26) and the second mesh cloth (28) are connected by a plurality of wavy cloth strips (27) evenly spaced apart. The upper and lower ends of the first mesh cloth (26) and the second mesh cloth (28) are fixedly connected to the upper and lower inner walls of the metal frame (25) respectively. The upper and lower ends of the inner cavity of the air chamber (2) are fixedly installed with guide rails (24). The upper and lower ends of the metal frame (25) are slidably connected to the guide rails (24). A motor (6) is fixedly installed inside the air chamber (2). The output end of the motor (6) is connected to the housing (1) for rotation via a belt drive. A rotating disk (7) is connected to the housing (1), an elastic band (8) is fixedly mounted on the rotating disk (7), the other end of the elastic band (8) is fixedly connected to the center of one side of the second mesh cloth (28), an end of the housing (1) facing away from the air inlet pipe (3) is mounted with an end head (11), a laser detection head (12) for detecting acetylene concentration is fixedly mounted on the inner side of the end head (11), an air outlet pipe (10) connected to the internal air chamber is provided at the top end of the housing (1) near the laser detection head (12), and a flow meter (17) is fixedly mounted on the air inlet pipe (3).

2. A mining laser acetylene detector according to claim 1, characterized in that: A dust collecting box (9) which can be pulled out from the front side of the shell (1) is slidably connected to the bottom of the shell (1), and the dust collecting box (9) is located below the front side of the first mesh cloth (26).

3. The laser acetylene detector for mining according to claim 1, characterized in that: The bottom end of the housing (1) is provided with a connecting sleeve (22) fixedly connected thereto, the bottom end of the connecting sleeve (22) is rotatably connected to a base (19), and one side of the connecting sleeve (22) is provided with a locking bolt (23) for locking the base to restrict rotation.

4. A mining laser acetylene detector according to claim 3, characterized in that: A fixing nail (20) is installed on the base (19).

5. The laser acetylene detector for mining according to claim 1, characterized in that: A processor (13) and a power supply (14) are fixedly mounted inside the end head (11), a display (15) is fixedly mounted on the outer end of the end head (11), and the laser detection head (12), the power supply (14), the processor (13) and the display (15) are electrically connected.

6. The laser acetylene detector for mining according to claim 1, characterized in that: The end head (11) and the housing (1) are detachably connected via threads.

7. The laser acetylene detector for mining according to claim 1, characterized in that: The mesh dust removal mechanism (5) can be slidably pulled out from the front end of the housing (1).

8. The laser acetylene detector for mining according to claim 1, characterized in that: The output end of the air pump (4) is connected to a vertically arranged air distribution pipeline (16), and the air distribution pipeline (16) is connected to a plurality of nozzles (18) arranged at even intervals.

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