NL2028374B1 - Air quality collection device and method for mining safety engineering - Google Patents

Air quality collection device and method for mining safety engineering Download PDF

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Publication number
NL2028374B1
NL2028374B1 NL2028374A NL2028374A NL2028374B1 NL 2028374 B1 NL2028374 B1 NL 2028374B1 NL 2028374 A NL2028374 A NL 2028374A NL 2028374 A NL2028374 A NL 2028374A NL 2028374 B1 NL2028374 B1 NL 2028374B1
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Netherlands
Prior art keywords
air
piston
air quality
pneumatic
cavity
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NL2028374A
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Dutch (nl)
Inventor
Zhang Meiqi
He Sanlin
Yang Wenwang
Zhang Leilin
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Univ Anhui Sci & Technology
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Priority to NL2028374A priority Critical patent/NL2028374B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2273—Atmospheric sampling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N2001/2285—Details of probe structures

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The present invention discloses an air quality collection device and method for mining safety engineering. The air quality collection device includes a collection tank. A cavity is formed inside the collection tank. Connection holes are formed in side walls of two ends of the collection tank. Pneumatic cylinders are fixed at end portions of two sides of the collection tank. Pneumatic rods on the pneumatic cylinders run through the connection holes. Pistons are fixed at end portions of the pneumatic rods. The pistons and an inner wall of the cavity are sealed. In the present invention, the collection tank and the two pneumatic cylinders are designed. The collection tank may be filled with air to be collected through up—and—down movement of the pistons driven by the pneumatic cylinders, and then the pistons are driven to enable the air to be discharged from vent pipes. The air quality collection device is easy to operate and high in sealing property. In an operation process, there is no contact between a human body and the air to be collected, thus avoiding danger. Meanwhile, the present invention is simple in structure. By the design of connection pipes, the connection pipes may extend into a collection region, so that the collection randomness is high, and a detection result is more convincing.

Description

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AIR QUALITY COLLECTION DEVICE AND METHOD FOR MINING SAFETY ENGINEERING
BACKGROUND Technical Field The present invention relates to the field of collection of mining air, and particularly relates to an air quality collection device and method for mining safety engineering. Related Art The temperature and humidity of underground air are mainly determined by the physical and chemical properties of minerals and rock formations, a mining depth, a production process, and geographical and geological factors. In addition to oxygen, nitrogen, carbon dioxide and water vapor, main components of the underground air also include a large amount of harmful gas, such as methane gas, carbon monoxide, hydrogen sulfide, sulfur dioxide, nitrogen dioxide, ammonia, hydrogen, and mine dust. In the prior art, mining air is generally collected manually. A protective mask is worn to avoid inhaling toxic gas, but different degrees of harm to people may still be caused, and the risk is high. An air pump is also used to extract gas, thus achieving an objective by directly using mechanization. However, due to the cost or space occupation problem, it cannot be popularized, which brings inconvenience to actual production.
SUMMARY In order to solve deficiencies mentioned in the above background, the present invention is directed to provide an air quality collection device and method for mining safety engineering. In the present invention, a collection tank and two pneumatic cylinders are designed. The collection tank may be filled with air to be collected through up-and-down movement of pistons driven by the pneumatic cylinders, and then the pistons are driven to enable the air to be discharged from vent pipes. The air quality collection device is easy to operate and high in sealing property. In an operation process, there is no contact between a human body and the air to be collected, thus avoiding danger. Meanwhile, the present invention is simple in structure. By the design of connection pipes, the connection pipes may extend into a collection region, so that the collection randomness is high, and a detection result is more convincing.
The objective of the present invention may be achieved through the following technical solutions: An air quality collection device for mining safety engineering includes a collection tank. A cavity is formed inside the collection tank. Connection holes are formed in side walls of two ends of the collection tank.
Pneumatic cylinders are fixed at end portions of two sides of the collection tank. Pneumatic rods on the pneumatic cylinders run through the connection holes. Pistons are fixed at end portions of the pneumatic rods. The pistons and an inner wall of the cavity are sealed.
Two parallelly-distributed vent pipes are fixed on a side wall of a tank body of the collection tank. Annular grooves are formed in outer walls of vent pipes. A plurality of vent holes are formed in bottom portions of the vent pipes.
Connection pipes are disposed on side ends of the vent pipes. Annular rings in seal fit with the annular grooves are disposed on inner walls of one ends of the connection pipes.
Further, rubber pads are disposed between the pneumatic rods and the connection holes.
Further, one vent pipe is located at a higher position, and the other vent pipe is located at a lower position. The two vent pipes are oppositely disposed.
Further, the vent holes run through the side wall of the tank body of the collection tank, and are communicated with the cavity.
Further, diameters of the inner walls of the connection pipes are equal to diameters of the outer walls of the vent pipes.
A collection method of the air quality collection device for mining safety engineering includes the following steps: I, communicating the vent pipe located at a lower end with air in a region to be collected, and communicating the vent pipe located at an upper end with the collection tank; IL, driving the two pneumatic cylinders to enable the piston located at the lower end to be disposed in the cavity below the vent pipe located at the lower end and enable the piston located at the upper end to be disposed in the cavity between the two vent pipes; III, driving the pneumatic cylinder at the upper end to enable the pneumatic rod to drive the piston at the upper end to move upwards until the piston is close to the position of the vent pipe at the upper end, wherein at this time, the cavity is filled with the air in the region to be collected, IV, simultaneously driving the two pneumatic cylinders to enable the pneumatic rods to drive the two pistons to simultaneously move upwards, as shown in the figure, wherein at this time, the piston located at the upper end is disposed at a position above the vent pipe at the upper end and the piston located at the lower end is disposed at a position above the vent pipe at the lower end; and V, continuously driving the pneumatic cylinder located at the lower end to enable the piston located at the lower end to move upwards, so as to enable the air to enter the collection tank from the vent pipe at the upper end, thus completing the collection of the air.
The present invention has the following beneficial effects: In the present invention, the collection tank and the two pneumatic cylinders are designed. The collection tank may be filled with the air to be collected through the up-and-down movement of the pistons driven by the pneumatic cylinders, and then the pistons are driven to enable the air to be discharged from the vent pipes. The air quality collection device is easy to operate and high in sealing property. In the operation process, there is no contact between the human body and the air to be collected, thus avoiding the danger.
Meanwhile, the present invention is simple in structure. By the design of the connection pipes, the connection pipes may extend into the collection region, so that the collection randomness is high, and the detection result is more convincing.
BRIEF DESCRIPTION OF THE DRAWINGS The following further describes the present invention with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an entire structure of the present invention; FIG. 2 is a schematic sectional diagram of the entire structure of the present invention; FIG. 3 is a schematic structural diagram of a collection tank of the present invention; FIG. 4 is a schematic diagram of a connection pipe of the present invention;
FIG. 5 is a schematic sectional diagram of the entire structure of the present invention; and FIG. 6 1s a schematic sectional diagram of the entire structure of the present invention.
DETAILED DESCRIPTION The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments instead of all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. An air quality collection device for mining safety engineering, as shown in FIG. 1 and FIG. 2, includes a collection tank 1. A cavity 11 is formed inside the collection tank
1. Connection holes 12 are formed in side walls of two ends of the collection tank 1. Pneumatic cylinders 2 are fixed at end portions of two sides of the collection tank 1. Pneumatic rods 21 on the pneumatic cylinders 2 run through the connection holes 12. Rubber pads are disposed between the pneumatic rods 21 and the connection holes 12, thus improving the sealing property. Pistons 22 are fixed at end portions of the pneumatic rods 21. The pistons 22 and an inner wall of the cavity 11 are sealed. As shown in FIG. 2 and FIG. 3, two parallelly-distributed vent pipes 13 are fixed on a side wall of a tank body of the collection tank 1. One vent pipe 13 is located at a higher position, and the other vent pipe is located at a lower position. The two vent pipes 13 are oppositely disposed. Annular grooves 1301 are formed in outer walls of the vent pipes 13. A plurality of vent holes 14 are formed in bottom portions of the vent pipes 13. The vent holes 14 run through the side wall of the tank body of the collection tank 1, and are communicated with the cavity 11. As shown in FIG. 2 and FIG. 4, connection pipes 3 are disposed on side ends of the vent pipes 13. Diameters of inner walls of the connection pipes 3 are equal to diameters of the outer walls of the vent pipes 13. Annular rings 31 in seal fit with the annular grooves 1301 are disposed on the inner walls of one ends of the connection pipes 3, thus ensuring the sealing property of connection between the connection pipes 3 and the vent pipes 13.
During use, the vent pipe 13 located at one end is communicated with air in a region to be collected, and the vent pipe 13 located at the other end is communicated with the collection tank for air quality detection after collection.
5 An air quality collection method for mining safety engineering includes the following steps: I, the vent pipe 13 located at a lower end is communicated with the air in the region to be collected, and the vent pipe 13 located at an upper end is communicated with the collection tank.
IL, as shown in FIG. 2, the two pneumatic cylinders 2 are driven to enable the piston 22 located at the lower end to be disposed in the cavity 11 below the vent pipe 13 located at the lower end and enable the piston 22 located at the upper end to be disposed in the cavity 11 between the two vent pipes 13.
III, the pneumatic cylinder 2 at the upper end is driven to enable the pneumatic rod 21 to drive the piston 22 at the upper end to move upwards until the piston is close to the position of the vent pipe 13 at the upper end. At this time, the cavity 11 is filled with the air in the region to be collected, as shown in FIG. 5.
IV, the two pneumatic cylinders 2 are simultaneously driven to enable the pneumatic rods 21 to drive the two pistons 22 to simultaneously move upwards, as shown in FIG. 6. At this time, the piston 22 located at the upper end is disposed at a position above the vent pipe 13 at the upper end and the piston 22 located at the lower end is disposed at a position above the vent pipe 13 at the lower end, as shown in FIG.
6.
V, the pneumatic cylinder 2 located at the lower end is continuously driven to enable the piston 22 located at the lower end to move upwards, so as to enable the air to enter the collection tank from the vent pipe 13 at the upper end, thus completing the collection of the air.
The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the foregoing embodiments, descriptions in the foregoing embodiments and the specification merely describe the principles of the present invention, various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall all fall within the protection scope of the present invention.

Claims (6)

CONCLUSIESCONCLUSIONS 1. Een verzamelinrichting voor luchtkwaliteit voor mijnbouwveiligheidstechniek, omvattende een verzameltank (1), met als kenmerk, dat de binnenkant van de 5 verzameltank (1) is voorzien van een holte (11) en de zijwanden aan beide uiteinden van de verzameltank (1) zijn voorzien van verbindingsgaten (12); Een pneumatische cilinder (2) is bevestigd aan beide uiteinden van de verzameltank (1). Een pneumatische stang (21) op de pneumatische cilinder (2) penetreert het verbindingsgat (12). De zuiger (22) is bevestigd aan de uiteinden van de pneumatische stang (21). De zuiger (22) en de binnenwand van de holte (11) zijn hermetisch opgesteld; Twee parallel verdeelde ventilatiepijpen (13) zijn bevestigd aan de zijwand van het tanklichaam van de verzameltank (1). De ringvormige groef (1301) is gevormd op de buitenwanden van de ventilatiepijp (13). De bodem van de ventilatiepijp (13) is voorzien van een aantal ventilatiegaten (14); Een verbindingspijp (3) is voorzien aan een zijuiteinde van de ventilatiepijp (13), en een binnenwand van één einde van de verbindingspijp (3) is voorzien van een ringvormige ring (31) die nauw aansluit op een ringvormige groef (1301).1. An air quality collecting device for mining safety engineering comprising a collecting tank (1), characterized in that the inside of the collecting tank (1) is provided with a cavity (11) and the side walls at both ends of the collecting tank (1) are provided with connecting holes (12); A pneumatic cylinder (2) is attached to both ends of the collecting tank (1). A pneumatic rod (21) on the pneumatic cylinder (2) penetrates the connection hole (12). The piston (22) is attached to the ends of the pneumatic rod (21). The piston (22) and the inner wall of the cavity (11) are hermetically arranged; Two parallel distributed ventilation pipes (13) are attached to the side wall of the tank body of the collecting tank (1). The annular groove (1301) is formed on the outer walls of the ventilation pipe (13). The bottom of the ventilation pipe (13) is provided with a number of ventilation holes (14); A connecting pipe (3) is provided at a side end of the ventilation pipe (13), and an inner wall of one end of the connecting pipe (3) is provided with an annular ring (31) closely adhering to an annular groove (1301). 2. De verzamelinrichting voor luchtkwaliteit voor mijnbouwveiligheidstechniek volgens conclusie 1, met als kenmerk, dat een rubberen kussen is voorzien tussen de pneumatische stang (21) en het verbindingsgat (12).The air quality collecting device for mining safety engineering according to claim 1, characterized in that a rubber pad is provided between the pneumatic rod (21) and the connection hole (12). 3. De verzamelinrichting voor luchtkwaliteit voor mijnbouwveiligheidstechniek volgens conclusie 1, met als kenmerk, dat de posities van de ventilatiepijpen (13) zich op verschillende hoogten bevinden en twee ventilatiepijpen (13) tegenover elkaar zijn geplaatst.The air quality collecting device for mining safety engineering according to claim 1, characterized in that the positions of the ventilation pipes (13) are at different heights and two ventilation pipes (13) are arranged opposite each other. 4. De verzamelinrichting voor luchtkwaliteit voor mijnbouwveiligheidstechniek volgens conclusie 1, met als kenmerk, dat het ventilatiegat (14) 1s verbonden door de zijwand van het tanklichaam en de holte (11) van de verzameltank (1).The mining safety engineering air quality collecting device according to claim 1, characterized in that the ventilation hole (14) is connected through the side wall of the tank body and the cavity (11) of the collecting tank (1). 5. De verzamelinrichting voor luchtkwaliteit voor mijnbouwveiligheidstechniek volgens conclusie 1, met als kenmerk, dat de binnenwanddiameter van de verbindingspijp (3) gelijk is aan de buitenwanddiameter van de ventilatiepijp (13).The air quality collecting device for mining safety engineering according to claim 1, characterized in that the inner wall diameter of the connecting pipe (3) is equal to the outer wall diameter of the ventilation pipe (13). 6. De verzamelwerkwijze van een verzamelinrichting voor luchtkwaliteit voor mijnbouwveiligheidstechniek volgens conclusie 1, met als kenmerk, dat deze de volgende stappen omvat: Stap 1: Verbind de ventilatiepijp (13) aan de onderkant met de lucht in het te verzamelen gebied en verbind de ventilatiepijp (13) aan de bovenkant met de verzameltank;The collecting method of an air quality collecting device for mining safety engineering according to claim 1, characterized in that it comprises the following steps: Step 1: Connect the ventilation pipe (13) at the bottom with the air in the area to be collected and connect the ventilation pipe (13) at the top with the collecting tank; Stap 2: Drijf de twee pneumatische cilinders (2) aan, zodat de zuiger (22) aan de onderkant in de holte (11) onder de ventilatiepijp (13) aan de onderkant wordt geplaatst,Step 2: Actuate the two pneumatic cylinders (2) so that the piston (22) at the bottom is placed in the cavity (11) under the ventilation pipe (13) at the bottom, zodat de zuiger (22) aan de bovenkant in de holte (11) tussen de twee ventilatiepijpen (13) wordt geplaatst;so that the piston (22) is placed at the top in the cavity (11) between the two ventilation pipes (13); Stap 3: Drijf de bovenste pneumatische cilinder (2), waarop de pneumatische stang (21) de bovenste zuiger (22) zal aandrijven teneinde deze omhoog te bewegen naar de positie nabij de bovenste ventilatiepijp (13), en op dit moment wordt de holte (11) gevuld met lucht in het te verzamelen gebied;Step 3: Drive the upper pneumatic cylinder (2), on which the pneumatic rod (21) will drive the upper piston (22) to move it up to the position near the upper ventilation pipe (13), and at this time the cavity is (11) filled with air in the area to be collected; Stap 4: Drijf de twee pneumatische cilinders (2) tegelijkertijd aan, waarop de pneumatische stang (21) de twee zuigers (22) zal aandrijven teneinde deze tegelijkertijd omhoog te bewegen, zoals getoond in Figuur (6), en op dit moment wordt de zuiger (22) aan het bovenste uiteinde boven de ventilatiepijp (13) aan het bovenste uiteinde geplaatst en wordt de zuiger (22) aan het onderste uiteinde boven de ventilatiepijp (13) aan het onderste uiteinde geplaatst;Step 4: Actuate the two pneumatic cylinders (2) at the same time, whereupon the pneumatic rod (21) will drive the two pistons (22) to move them upwards at the same time, as shown in Figure (6), and at this time the piston (22) at the upper end is placed above the ventilation pipe (13) at the upper end and the piston (22) at the lower end is placed above the ventilation pipe (13) at the lower end; Stap 5: Blijf de pneumatische cilinder (2) aan het onderste uiteinde aandrijven, waarop de zuiger (22) aan het onderste uiteinde omhoog beweegt zodat de lucht de verzameltank binnenkomt vanuit de bovenste ventilatiepijp (13) om de luchtverzameling te voltooien.Step 5: Continue to actuate the pneumatic cylinder (2) at the lower end, whereupon the piston (22) at the lower end moves up so that the air enters the collecting tank from the upper ventilation pipe (13) to complete the air collection.
NL2028374A 2021-06-02 2021-06-02 Air quality collection device and method for mining safety engineering NL2028374B1 (en)

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