Mine ventilation detection device
Dust is separated by suspended balls and steel wire grids in the separation cylinder, and deposited dirt is removed by magnetic scrapers and track plates. This solves the problem of detection inaccuracy caused by dust in mine ventilation detection devices and achieves efficient air purification and accurate gas detection.
Patent Information
- Application Number
- CN202422106272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In mine ventilation detection devices, dust easily adheres to the sensor detection head, resulting in inaccurate detection. Existing technologies lack effective dust separation methods.
It adopts a separation cylinder design, uses suspended balls and wire grids to separate dust in the air, combines magnetic scrapers and track plates to remove deposited dirt, and separates dust from air through water sedimentation and mechanical scraping to ensure air quality before entering the gas detector.
It effectively prevents dust from entering the gas detector, improves the accuracy and safety of detection, and ensures reliable judgment of mine ventilation conditions.
Smart Images
Figure CN223308184U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of mine ventilation, and specifically relates to a mine ventilation detection device. Background Art
[0002] Mine ventilation refers to the process of introducing fresh air into the mine to increase oxygen concentration and dilute and remove toxic and harmful gases and dust from the mine. The fundamental task of mine ventilation is to supply sufficient fresh air underground to meet personnel's oxygen needs, dilute harmful gases and dust, ensure safe production, regulate the underground climate, and create a favorable working environment. To ensure that underground airflow flows along designated routes, structures to guide and control airflow, known as ventilation facilities, must be constructed within certain tunnels. These facilities are divided into those that guide airflow and those that block airflow. Currently, small and medium-sized coal mines lack comprehensive monitoring methods due to their outdated equipment. When mine ventilation fails to meet standards, excessive gas levels can easily occur, leading to safety accidents. Therefore, monitoring underground ventilation conditions is a fundamental requirement for underground coal mine operations.
[0003] For example, patent number CN216431156U discloses a gas detection device for mine ventilation. A guide rail is fixed to one side of the mounting plate. Two guide slots are symmetrically formed on the upper and lower sides of the guide rail. A side slide is provided on the front side of the guide rail. One side of the side slide is rotatably connected to four rectangularly arranged rollers at the four corners. The four rollers are respectively connected to the inner sides of the two guide slots in a rolling manner. The utility model drives the two upper rollers to rotate through a travel drive mechanism, thereby driving the air duct to move along the guide rail. The telescopic end of the lifting electric cylinder is telescopically moved, which drives the air duct to move up and down, thereby detecting air at different heights and positions. This significantly increases the detection range, helps to improve detection sensitivity, and enhances safety.
[0004] During the implementation of this application, we discovered that this technology has the following problems: The device uses a controller to control the operation of the circulating fan, which draws external air into the inner side of the wind tube for detection using sensors. However, due to the huge amount of dust in mines, dust easily enters with the airflow and adheres to the detection heads of various sensors, causing inaccurate detection. Therefore, to solve this problem, it is necessary to optimize and improve the design to a certain extent, and it is necessary to propose a mine ventilation detection device. Utility Model Content
[0005] The purpose of this application is to provide a mine ventilation detection device in order to solve the above-mentioned problems.
[0006] The technical solution adopted in this application is as follows: A mine ventilation detection device includes a separation cylinder, exhaust plates are fixedly installed on both sides of the inner wall of the separation cylinder, air intake pipes connected to the exhaust plates are fixedly installed on both sides of the outer wall of the separation cylinder, a steel wire grid is fixedly installed above the exhaust plate inside the separation cylinder, a plurality of suspended balls are placed above the steel wire grid, an air pump and a gas detector are fixedly installed on the top of the separation cylinder, the air inlet end of the air pump is connected to the inner cavity of the separation cylinder through a pipe, and the exhaust end of the separation cylinder is connected to the detection chamber of the gas detector through a pipe.
[0007] The inner cavity of the separation cylinder is located below the exhaust plate, and a strong magnet is slidably installed on the rear side. A scraper is fixedly installed on the front side of the strong magnet. The bottom of the scraper fits with the bottom of the inner cavity of the separation cylinder. A track plate is fixedly installed on the rear side of the separation cylinder, and a slider is slidably installed in the middle of the track plate. A strong magnet is fixedly installed on the front side of the slider. Sewage grooves are provided on both sides of the inner bottom of the separation cylinder.
[0008] In a preferred embodiment, a water inlet pipe with a sealing cover on the top is fixedly connected to the left side of the top of the separation cylinder, and an observation window made of transparent tempered glass is provided on the front side of the separation cylinder.
[0009] In a preferred embodiment, the air inlet pipe is of Z-shaped design, and a plurality of thin strip-shaped exhaust slots are provided on the upper and lower surfaces of the exhaust plate.
[0010] In a preferred embodiment, a plurality of exhaust pipes connected to the detection chamber inside the gas detector are fixedly installed at the lower right side of the gas detector, the exhaust ports of the exhaust pipes face downward, and the exhaust ports at the bottom ends of the exhaust pipes are provided with filters.
[0011] In a preferred embodiment, a sliding groove adapted to the slider and the male strong magnet is provided in the middle of the track plate, a screw rod is threadedly connected to the slider, and a driving motor is provided at the right end of the screw rod.
[0012] In a preferred embodiment, the position of the male strong magnet is arranged opposite to the male strong magnet, and the opposite surfaces of the male strong magnet and the male strong magnet are arranged with opposite magnetic properties.
[0013] In a preferred embodiment, sleeves are fixedly installed on both sides of the bottom of the separation cylinder below the sewage trough, a sewage collecting box is spliced at the bottom of the sleeve, a rubber sealing ring is provided on the fitting surface of the sewage collecting box and the sleeve, a lock is provided on the outer wall of the sleeve, a pin is provided on the top side of the sewage collecting box and is inserted into the bottom of the lock, a sewage pipe is provided on the outside of the sleeve, and a handwheel valve is provided on the outside of the sewage pipe.
[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0015] 1. In this application, through the above design, when it is necessary to use this device to detect the air in the mine to judge the ventilation effect, first add water to the inner cavity of the separation cylinder through the water inlet pipe, and screw on the sealing cover to seal it until the water rises above the wire grid and makes multiple suspended balls suspended in the liquid surface. At the same time, it is necessary to ensure that the water is at a certain distance from the air inlet end at the bottom of the air pump. Then start the air pump to create negative pressure in the separation cylinder. At this time, the air in the mine passes through the air inlet pipe and is discharged from the exhaust groove on the outer wall of the exhaust plate. Since the exhaust grooves are multiple and thin strips, the air in the mine and the air wrapped in the air are The entrained dust will be broken up by the exhaust groove and discharged into multiple streams. When it encounters water, it will settle and separate from the air. The air will continue to move upward. When the air passes through the wire grid, it will continue to be divided into multiple parts. At the same time, when it encounters the suspended balls while moving upward, it will impact the suspended balls, causing multiple suspended balls to start floating and collide with each other, disturbing the water, thereby further disturbing the separated dust in the air bubbles and settling and separating when it encounters water. At this time, the clean air is discharged into the gas detector through the air pump for detection, thereby effectively preventing the dust in the gas from entering the detection chamber and covering the detection head, causing inaccuracy in the detection.
[0016] 2. In this application, through the above design, when the water in the separation cylinder becomes turbid, the drain pipe can be opened through the handwheel valve to discharge the sewage, and then the drive motor is started to drive the screw to rotate, so that the screw drives the slider to move back and forth left and right in the middle of the track plate. At this time, the strong magnet on the front side of the slider adsorbs the inner wall of the separation cylinder, and the strong magnet on the rear side of the sliding slider drives the scraper to move left and right at the bottom of the inner cavity of the separation cylinder, so as to push the dirt that is not discharged with the water flow at the bottom of the separation cylinder into the drain troughs on both sides and fall into the dirt collecting box. Finally, the latch is unlocked by the lock, and the dirt collecting box is pulled out to clean the dirt for subsequent reuse. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the present application from a front side perspective;
[0018] Figure 2 This is a schematic diagram of the structure of the present application from the front as seen from above;
[0019] Figure 3 This is a schematic diagram of the rear side view of the structure of this application.
[0020] Markings in the figure: 1-separation cylinder, 2-water inlet pipe, 3-exhaust plate, 4-inlet pipe, 5-wire grille, 6-suspension ball, 7-air pump, 8-gas detector, 9-exhaust pipe, 10-high-strength magnet, 11-scraper, 12-track plate, 13-slider, 14-screw rod, 15-high-strength magnet, 16-drain trough, 17-sleeve, 18-drain box, 19-lock, 20-latch, 21-drain pipe, 22-handwheel valve. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0022] Reference Figure 1-Figure 3 , a mine ventilation detection device, including a separation cylinder 1, a water inlet pipe 2 with a sealing cover on the top is fixedly connected to the left side of the top of the separation cylinder 1, an observation window made of transparent tempered glass is provided on the front side of the separation cylinder 1, exhaust plates 3 are fixedly installed on both sides of the inner wall of the separation cylinder 1, and air intake pipes 4 connected to the exhaust plates 3 are fixedly installed on both sides of the outer wall of the separation cylinder 1. The air intake pipes 4 are Z-shaped, and a plurality of thin strip-shaped exhaust grooves are opened on the upper and lower surfaces of the exhaust plates 3. The interior of the separation cylinder 1 is fixed above the exhaust plates 3. A steel wire grid 5 is installed, and a plurality of suspended balls 6 are placed above the steel wire grid 5. An air pump 7 and a gas detector 8 are fixedly installed on the top of the separation cylinder 1. The air inlet end of the air pump 7 is connected to the inner cavity of the separation cylinder 1 through a pipe, and the exhaust end of the separation cylinder 1 is connected to the detection chamber of the gas detector 8 through a pipe. A plurality of exhaust pipes 9 connected to the detection chamber inside the gas detector 8 are fixedly installed at the lower right side of the gas detector 8. The exhaust port of the exhaust pipe 9 faces downward, and the exhaust port at the bottom end of the exhaust pipe 9 is provided with a filter.
[0023] Through the above design, when it is necessary to use this device to detect the air in the mine to judge the ventilation effect, first add water to the inner cavity of the separation cylinder 1 through the water inlet pipe 2, and screw on the sealing cover to seal it until the water rises above the wire grid 5 and makes multiple suspended balls 6 suspended in the liquid surface. At the same time, it is necessary to ensure that the water is at a certain distance from the air inlet end at the bottom of the air pump 7. Then start the air pump 7 to create negative pressure in the separation cylinder 1. At this time, the air in the mine passes through the air inlet pipe 4 and is discharged from the exhaust groove on the outer wall of the exhaust plate 3. Since the exhaust grooves are multiple and thin strips, the air in the mine and the air carried by the air are The dust will be broken up by the exhaust groove and discharged into multiple streams. When it encounters water, it will settle and separate from the air. The air will continue to move upward. When the air passes through the wire grid 5, it will be further divided into multiple parts. At the same time, when it encounters the suspended ball 6 while moving upward, it will impact the suspended ball 6, causing multiple suspended balls 6 to start floating and collide with each other, disturbing the water, thereby further disturbing the separated dust in the air bubbles and settling and separating when it encounters water. At this time, the clean air is discharged into the gas detector 8 through the air pump 7 for detection, thereby effectively preventing the dust in the gas from entering the detection chamber and covering the detection head, causing inaccuracy in the detection.
[0024] Reference Figure 1 、 2 3. The inner cavity of the separation cylinder 1 is located below the exhaust plate 3, and a strong magnet 10 is slidably installed on the rear side. A scraper 11 is fixedly installed on the front side of the strong magnet 10. The bottom of the scraper 11 fits with the bottom of the inner cavity of the separation cylinder 1. A track plate 12 is fixedly installed on the rear side of the separation cylinder 1, and a slider 13 is slidably installed on the middle part of the track plate 12. A strong magnet 15 is fixedly installed on the front side of the slider 13. A sliding groove adapted to the slider 13 and the strong magnet 15 is opened in the middle part of the track plate 12. A screw rod 14 is threadedly connected to the slider 13, and a drive motor is provided at the right end of the screw rod 14. The position of the strong magnet 15 is consistent with The male strong magnets 10 are arranged opposite to each other, and the male strong magnets 15 are arranged with opposite magnetic properties to the opposite surfaces of the male strong magnets 10. Drain grooves 16 are provided on both sides of the inner bottom of the separation cylinder 1. Sleeves 17 are fixedly installed on both sides of the bottom of the separation cylinder 1 below the drain grooves 16. A sewage collecting box 18 is spliced at the bottom of the sleeve 17, and a rubber sealing ring is provided on the fitting surface of the sewage collecting box 18 and the sleeve 17. A lock buckle 19 is provided on the outer wall of the sleeve 17, and a pin 20 is provided on the top side of the sewage collecting box 18, which is inserted into the bottom of the lock buckle 19. A sewage pipe 21 is provided on the outside of the sleeve 17, and a handwheel valve 22 is provided on the outside of the sewage pipe 21.
[0025] Through the above design, when the water in the separation cylinder 1 becomes turbid, the drain pipe 21 can be opened through the handwheel valve 22 to discharge the sewage, and then the drive motor is started to drive the screw rod 14 to rotate, so that the screw rod 14 drives the slider 13 to move back and forth left and right in the middle of the track plate 12. At this time, the strong magnet 15 on the front side of the slider 13 adsorbs the strong magnet 10 on the rear side of the inner wall of the separation cylinder 1 and drives the scraper 11 to move left and right at the bottom of the inner cavity of the separation cylinder 1, so as to push the dirt at the bottom of the separation cylinder 1 that is not discharged with the water flow to the drain grooves 16 on both sides and fall into the dirt collecting box 18. Finally, the latch 20 is unlocked by the lock buckle 19, and the dirt collecting box 18 is pulled out to clean the dirt for subsequent reuse.
[0026] The implementation principle of the embodiment of this application is:
[0027] First, when it is necessary to use this device to detect the air in the mine to determine the ventilation effect, first add water to the inner cavity of the separation cylinder 1 through the water inlet pipe 2, and screw on the sealing cover to seal it until the water rises above the wire grid 5 and makes multiple suspended balls 6 suspended in the liquid surface. At the same time, it is necessary to ensure that the water is at a certain distance from the air inlet end at the bottom of the air pump 7. Then start the air pump 7 to create negative pressure in the separation cylinder 1. At this time, the air in the mine passes through the air inlet pipe 4 and is discharged from the exhaust groove on the outer wall of the exhaust plate 3. Since the exhaust grooves are multiple and thin strips, the air in the mine and the dust carried by the air are It will be broken up by the exhaust groove and discharged into multiple streams. When it encounters water, it will settle and separate from the air. The air will continue to move upward. When the air passes through the wire grid 5, it will continue to be divided into multiple parts. At the same time, when it encounters the suspended ball 6 while moving upward, it will impact the suspended ball 6, causing multiple suspended balls 6 to start floating and collide with each other to disturb the water, thereby further disturbing the separated dust in the air bubbles and settling and separating when it encounters water. At this time, the clean air is discharged into the gas detector 8 through the air pump 7 for detection, thereby effectively preventing the dust in the gas from entering the detection chamber and covering the detection head, causing inaccuracy in the detection.
[0028] Furthermore, when the water in the separation cylinder 1 becomes turbid, the drain pipe 21 can be opened through the handwheel valve 22 to discharge the sewage, and then the drive motor is started to drive the screw rod 14 to rotate, so that the screw rod 14 drives the slider 13 to move back and forth left and right in the middle of the track plate 12. At this time, the strong magnet 15 on the front side of the slider 13 adsorbs the strong magnet 10 on the rear side of the inner wall of the separation cylinder 1 and drives the scraper 11 to move left and right at the bottom of the inner cavity of the separation cylinder 1, so as to push the dirt at the bottom of the separation cylinder 1 that is not discharged with the water flow to the drain grooves 16 on both sides and fall into the dirt collecting box 18. Finally, the latch 20 is unlocked by the lock buckle 19, and the dirt collecting box 18 is pulled out to clean the dirt for subsequent reuse.
[0029] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A mine ventilation detection device, comprising a separation cylinder (1), characterized in that: Exhaust plates (3) are fixedly mounted on both sides of the inner wall of the separation cylinder (1), and air inlet pipes (4) connected to the exhaust plates (3) are fixedly mounted on both sides of the outer wall of the separation cylinder (1). A steel wire grid (5) is fixedly mounted above the exhaust plates (3) in the interior of the separation cylinder (1), and a plurality of suspended balls (6) are placed above the steel wire grid (5). An air pump (7) and a gas detector (8) are fixedly mounted on the top of the separation cylinder (1), and the air inlet end of the air pump (7) is connected to the inner cavity of the separation cylinder (1) through a pipeline, and the exhaust end of the separation cylinder (1) is connected to the detection chamber of the gas detector (8) through a pipeline. The inner cavity of the separation cylinder (1) is located below the exhaust plate (3), and a male strong magnet (10) is slidably installed on the rear side. A scraper (11) is fixedly installed on the front side of the male strong magnet (10). The bottom of the scraper (11) fits with the bottom of the inner cavity of the separation cylinder (1). A track plate (12) is fixedly installed on the rear side of the separation cylinder (1), and a slider (13) is slidably installed in the middle of the track plate (12). A male strong magnet (15) is fixedly installed on the front side of the slider (13). Sewage grooves (16) are provided on both sides of the inner bottom of the separation cylinder (1).
2. A mine ventilation detection device according to claim 1, characterized in that: A water inlet pipe (2) with a sealing cover at the top is fixedly connected to the left side of the top of the separation cylinder (1), and an observation window made of transparent tempered glass is provided on the front side of the separation cylinder (1).
3. A mine ventilation detection device according to claim 1, characterized in that: The air inlet pipe (4) is of Z-shaped design, and a plurality of thin strip-shaped exhaust slots are provided on the upper and lower surfaces of the exhaust plate (3).
4. A mine ventilation detection device according to claim 1, characterized in that: A plurality of exhaust pipes (9) connected to the detection chamber inside the gas detector (8) are fixedly installed at the lower right side of the gas detector (8), the exhaust ports of the exhaust pipes (9) facing downward, and the exhaust ports at the bottom ends of the exhaust pipes (9) are provided with filters.
5. The mine ventilation detection device according to claim 1, characterized in that: A sliding groove adapted to the slider (13) and the male strong magnet (15) is provided in the middle of the track plate (12); the slider (13) is threadedly connected to the screw rod (14); and a driving motor is provided at the right end of the screw rod (14).
6. A mine ventilation detection device according to claim 1, characterized in that: The position of the male strong magnet (15) is arranged opposite to the male strong magnet (10), and the opposite surfaces of the male strong magnet (15) and the male strong magnet (10) are arranged in opposite magnetic directions.
7. A mine ventilation detection device according to claim 1, characterized in that: Sleeves (17) are fixedly installed on both sides of the bottom of the separation cylinder (1) below the sewage trough (16), the bottom of the sleeve (17) is spliced with the sewage collecting box (18), the fitting surface of the sewage collecting box (18) and the sleeve (17) is provided with a rubber sealing ring, the outer wall of the sleeve (17) is provided with a lock buckle (19), the top side of the sewage collecting box (18) is provided with a latch (20) plugged into the bottom of the lock buckle (19), the outer side of the sleeve (17) is provided with a sewage pipe (21), and the outer side of the sewage pipe (21) is provided with a hand wheel valve (22).