Movable dry-type blowout hole and overrun prevention device

By designing movable dry blowout preventers and over-limit devices, and utilizing dust removal mechanisms and automatic cleaning systems, the problems of insufficient local filtration by filter media and difficulty in cleaning coal dust have been solved, achieving efficient gas filtration and safe production.

CN223523772UActive Publication Date: 2025-11-07PINGDINGSHAN BIYUAN TECH
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Patent Information

Application Number
CN202423255188.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-11-07
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

In existing dry blowout preventers and over-limit devices, the filter media in some areas cannot fully contact the gas, resulting in insufficient filtration and difficulty in cleaning coal dust, which affects filtration efficiency and safety.

Method used

A movable dry blowout preventer and over-limit device was designed, including a dust removal mechanism, a filter drum, a transmission assembly, and a discharge assembly. The filter drum is driven by a motor to achieve preliminary gas filtration, and the spiral scraper and spiral feed rod are used to automatically clean coal dust, thereby improving filtration efficiency.

Benefits of technology

It achieves thorough preliminary filtration of gas and convenient cleaning of coal dust, improves filtration efficiency, and ensures safe production and environmental protection requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a movable dry-type blowout hole and overrun prevention device, which relates to the technical field of coal mine equipment and comprises a device main body, a shell is mounted in the device main body, an exhaust pipe is mounted at one end, far away from an air inlet end, of the shell, and an exhaust port is formed in the position, located at a port of the exhaust pipe, of the shell. An inner cavity of the exhaust port communicates with the exhaust pipe and an inner cavity of the shell, a gas inlet end is installed at the end, away from the exhaust pipe, of the shell, and a dust removal mechanism used for conducting preliminary dust removal and filtration on gas is arranged on the device body. According to the utility model, through the dust removal mechanism, gas carrying coal dust can be preliminarily and fully filtered, and the preliminarily filtered gas is conveyed to a subsequent device through the exhaust pipe, so that the preliminarily filtered gas can be secondarily filtered, and meanwhile, residual coal dust after filtration is conveniently collected and discharged; therefore, the gas preliminary filtering efficiency is further improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine equipment technical field, concretely is a kind of movable dry type blowout preventer and device of overrunning. BACKGROUND

[0002] Dry type blowout preventer refers to prevent gas from being sprayed in coal mine and the like environment by sealing drilling hole, and by being equipped with the equipment for monitoring gas concentration in real time, to guarantee production safety, prevent gas overrunning refers to take measures to prevent gas concentration from exceeding safety standard in coal mine and the like environment, resulting in the occurrence of safety accident, including strengthening ventilation, gas extraction, real-time monitoring and strict management and the like, movable dry type blowout preventer and device of overrunning refer to a kind of device for the environment containing gas in coal mine and the like, the effective control and filtration of gas, to prevent gas blowout and gas overrunning accident.

[0003] In the use process of existing dry type blowout preventer and device of overrunning, in order to prevent coal dust explosion, protect equipment, improve gas utilization rate, improve working environment and meet environmental protection and the like requirements, gas is filtered by the way of preliminary filtration and secondary filtration, but in the long-term use process, since filter material is installed and fixed in the inside of device, the local position of filter material is difficult to fully contact with gas, so that the local position of filter material is difficult to effectively and fully filter gas, and when discharging coal dust, it is difficult to clean coal dust adhered to the surface of filter material, so it is often necessary to stop the device to maintain and replace filter material. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of movable dry type blowout preventer and device of overrunning, to solve the problem that the local position of filter material is difficult to effectively and fully filter gas in the background art, and when discharging coal dust, it is difficult to clean coal dust adhered to the surface of filter material.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of movable dry type blowout preventer and device of overrunning, including device main body, the inside of device main body is installed with shell, the end of shell away from air inlet is installed with exhaust pipe, the port of shell at exhaust pipe is opened with exhaust port, the inner cavity of exhaust port is respectively with the inner cavity of exhaust pipe, shell interpenetration, the end of shell away from exhaust pipe is installed with air inlet, dust removal mechanism for carrying out preliminary dust removal filtration to gas is arranged on device main body;

[0007] The dust removal mechanism includes: motor installed at one end of shell, the motor is below exhaust pipe, the output end of motor is fixedly connected with filter drum.

[0008] On the basis of the above technical solutions, the utility model further provides the following optional technical solutions:

[0009] In an alternative, the dust removal mechanism further comprises a first support assembly arranged on the filter drum;

[0010] The first support assembly is a support ring slidingly sleeved on the outer wall of the filter drum, and the support ring is fixedly connected with the shell;

[0011] The filter drum is provided with a transmission assembly.

[0012] In an alternative, the transmission assembly comprises a gear ring fixedly connected to the outer wall of the filter drum, the gear ring is located at the end of the support ring away from the motor, the outer wall of the gear ring is symmetrically meshed with two gears, the two gears are respectively located at the upper and lower ends of the filter drum, and the two gears are both rotationally connected with the shell through a rotating shaft;

[0013] One of the gears is provided with a gas feeding assembly.

[0014] In an alternative, the gas feeding assembly comprises a transmission rod fixedly connected to one end of one gear, the transmission rod is located above the support ring, the end of the transmission rod away from one gear is fixedly connected with a fan, and the fan is located inside the exhaust pipe;

[0015] The transmission rod is provided with a second support assembly.

[0016] In an alternative, the second support assembly is a support sleeve slidingly sleeved on the outer wall of the transmission rod, and the support sleeve is fixedly connected with the shell;

[0017] The shell is provided with a material discharging assembly.

[0018] In an alternative, the material discharging assembly comprises a material collecting frame fixedly connected to one end of the shell away from the exhaust pipe, the material collecting frame is located below the air inlet end, a spiral feeding rod is arranged in the material collecting frame, the spiral feeding rod is located at the end of the other gear, the spiral feeding rod is rotationally connected with the material collecting frame through a rotating shaft, the spiral feeding rod is fixedly connected with the other gear through a connecting shaft, a slag discharging port is formed in the shell at the port of the filter drum, and the slag discharging port is located inside the material collecting frame;

[0019] The filter drum is provided with an air inlet assembly.

[0020] In an alternative, the air inlet assembly comprises an exhaust cylinder arranged in the filter drum, the exhaust cylinder is located at one end of the air inlet end, the exhaust cylinder is fixedly connected with the air inlet end, and a plurality of exhaust holes are equidistantly formed in the outer wall of the exhaust cylinder in the circumferential direction;

[0021] The material guiding assembly is arranged on the exhaust cylinder.

[0022] In an alternative, the material guiding assembly comprises a spiral scraper arranged outside the exhaust cylinder, the spiral scraper is in contact with the inner wall of the filtering rotary drum, and the outer wall of the spiral scraper is symmetrically formed with two fixed plates, and the two fixed plates are fixedly connected with the exhaust cylinder.

[0023] Compared with the prior art, the utility model has the beneficial effects as follows:

[0024] The dust removal mechanism can preliminarily and sufficiently filter the gas carrying coal dust, and the gas after preliminary filtration is conveyed to subsequent devices through the exhaust pipe, so that the gas after preliminary filtration can be secondarily filtered, and the coal dust after filtration can be conveniently collected and discharged, so that the efficiency of preliminary gas filtration is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the utility model. Figure 2 It is a structural schematic diagram of the utility model.

[0029] Figure 5 It is a structural schematic diagram of the utility model.

[0030] Label annotation: 1, device main body;201, motor;202, filtering rotary drum;203, support ring;204, spiral scraper;205, spiral feeding rod;206, material collecting frame;207, slag discharge port;208, exhaust cylinder;209, gear ring;2010, gear;2011, transmission rod;2012, fan;2013, support sleeve frame;2014, fixed plate;3, air inlet end;4, exhaust pipe;5, shell. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail in combination with the drawings and examples.

[0032] In one embodiment, as Figures 1-5As shown, a movable dry blowout preventer and over-limit device includes a device body 1, an outer shell 5 installed inside the device body 1, an exhaust pipe 4 installed at the end of the outer shell 5 away from the air inlet 3, an exhaust port opened at the port of the exhaust pipe 4 on the outer shell 5, the inner cavity of the exhaust port communicating with the inner cavity of the exhaust pipe 4 and the outer shell 5 respectively, an air inlet 3 installed at the end of the outer shell 5 away from the exhaust pipe 4, an extraction pipe and a slag discharge pipe installed on the device body 1, an air inlet pipe fixedly connected to the end of the air inlet 3, and a dust removal mechanism for preliminary dust removal and filtration of gas provided on the device body 1.

[0033] The dust removal mechanism includes: a motor 201 installed at one end of the housing 5, the motor 201 being located below the exhaust pipe 4, and the motor 201 driving the filter drum 202 to rotate;

[0034] The dust removal mechanism also includes: a first support assembly disposed on the filter drum 202;

[0035] The first support component is a support collar 203 that is slidably sleeved on the outer wall of the filter cylinder 202, and the support collar 203 is fixedly connected to the outer shell 5.

[0036] A transmission assembly is provided on the filter drum 202;

[0037] In this embodiment, during use, through the cooperation of the extraction pipe, the air inlet pipe, and the dust removal mechanism, the main body 1 of the device can discharge the extracted gas through the air inlet 3 into the inner cavity of the filter drum 202. At the same time, the motor 201 is started to drive the filter drum 202 to rotate along the inner wall of the support ring 203. At this time, due to the physical properties of the gas, the gas rises. When the gas comes into contact with the inner wall of the filter drum 202, the coal dust is separated from the gas by the filter drum 202. Thus, the gas carrying coal dust can be fully filtered through the filter drum 202.

[0038] During this process, the gas that has undergone preliminary filtration can be transported to the subsequent device through the exhaust pipe 4 by the dust removal mechanism, so that the gas that has undergone preliminary filtration can be filtered a second time, and the collected coal dust can be discharged through the slag discharge pipe, thereby further improving the efficiency of preliminary filtration of gas.

[0039] In one embodiment, such as Figures 3-4 As shown, the transmission assembly includes: a gear ring 209 fixedly connected to the outer wall of the filter drum 202, the gear ring 209 being located at the end of the support sleeve 203 away from the motor 201, the gear ring 209 meshing with two gears 2010, the two gears 2010 being located at the upper and lower ends of the filter drum 202 respectively, and both gears 2010 being rotatably connected to the outer casing 5 via a rotating shaft;

[0040] An air supply assembly is installed on a gear 2010;

[0041] The air feeding assembly comprises a transmission rod 2011 fixedly connected to one end of the gear 2010, the transmission rod 2011 is located above the support ring 203, and the end of the transmission rod 2011 away from the gear 2010 is fixedly connected with the fan 2012, and the fan 2012 is located inside the exhaust pipe 4;

[0042] The transmission rod 2011 is provided with a second support assembly;

[0043] The second support assembly is a support sleeve 2013 slidably sleeved on the outer wall of the transmission rod 2011, the support sleeve 2013 is fixedly connected with the shell 5, and the preliminary filtered gas can be conveyed through the cooperation of the transmission assembly, the air feeding assembly and the second support assembly;

[0044] The shell 5 is provided with a discharging assembly;

[0045] In one embodiment, as shown in Figures 2-5 The discharging assembly comprises a material collecting frame 206 fixedly connected to the end of the shell 5 away from the exhaust pipe 4, the material collecting frame 206 is located below the air inlet end 3, the inside of the material collecting frame 206 is provided with a spiral feeding rod 205, the spiral feeding rod 205 is located at one end of the other gear 2010, the spiral feeding rod 205 is rotatably connected with the material collecting frame 206 through a rotating shaft, the spiral feeding rod 205 is fixedly connected with the other gear 2010 through a connecting shaft, the shell 5 is provided with a slag discharging port 207 at the port of the filtering rotary cylinder 202, the slag discharging port 207 is located inside the material collecting frame 206, the end of the material collecting frame 206 away from the shell 5 is provided with a discharging port, and the end of the material collecting frame 206 away from the shell 5 is provided with a discharging pipe fixedly connected with the device main body 1, and the two ends of the discharging pipe are located at the discharging port and the port of the slag discharging pipe respectively;

[0046] The filtering rotary cylinder 202 is provided with an air inlet assembly;

[0047] The air inlet assembly comprises an exhaust cylinder 208 arranged in the inside of the filtering rotary cylinder 202, the exhaust cylinder 208 is located at one end of the air inlet end 3, the exhaust cylinder 208 is fixedly connected with the air inlet end 3, and a plurality of exhaust holes are equidistantly formed in the outer wall of the exhaust cylinder 208 in the circumferential direction;

[0048] The exhaust cylinder 208 is provided with a material guiding assembly;

[0049] The material guiding assembly comprises a spiral scraper 204 arranged on the outside of the exhaust cylinder 208, the spiral scraper 204 is in contact with the inner wall of the filtering rotary cylinder 202, the outer wall of the spiral scraper 204 is symmetrically formed with two fixed plates 2014, the two fixed plates 2014 are fixedly connected with the exhaust cylinder 208, and the residual coal dust after filtering can be conveniently collected and discharged through the cooperation of the discharging assembly, the air inlet assembly and the material guiding assembly.

[0050] The above embodiment discloses a movable dry-type blowout preventer and overrunning device. When in use, the device body 1 discharges the extracted gas through the gas inlet end 3 into the inner cavity of the exhaust cylinder 208 through the extraction pipe and the gas inlet pipe. At this time, the exhaust cylinder 208 discharges the gas into the inner cavity of the filtering rotary cylinder 202 through a plurality of exhaust holes. At the same time, the motor 201 is started to drive the filtering rotary cylinder 202 to rotate along the inner wall of the support ring 203. At this time, the gas rises due to the physical properties of the gas. When the gas contacts the inner wall of the filtering rotary cylinder 202, the coal dust is separated from the gas under the blocking of the filtering rotary cylinder 202. In this way, the filtering rotary cylinder 202 can fully filter the gas carrying coal dust.

[0051] In this process, the gear ring 209 is driven to rotate by the filtering rotary cylinder 202 through meshing. At this time, the transmission rod 2011 drives the fan 2012 to rotate under the drive of one of the gears 2010. At the same time, the transmission rod 2011 rotates along the inner wall of the support sleeve 2013. In this way, the fan 2012 can transport the preliminarily filtered gas through the exhaust pipe 4 to the subsequent device, so as to perform secondary filtration on the preliminarily filtered gas.

[0052] At the same time, the spiral feeding rod 205 rotates under the drive of the other gear 2010 through the connecting shaft. When the coal dust on the inner wall of the filtering rotary cylinder 202 contacts the outer wall of the spiral scraper 204, the spiral scraper 204 can scrape the inner wall of the filtering rotary cylinder 202. In this way, the coal dust on the inner wall of the filtering rotary cylinder 202 can be automatically cleaned. At the same time, the coal dust moves along the outer wall of the spiral scraper 204 under the guidance of the outer wall of the spiral scraper 204 until the coal dust enters the inner cavity of the material collecting frame 206 through the discharge port 207. At this time, the spiral feeding rod 205 discharges the coal dust in the inner cavity of the material collecting frame 206 through the discharge port, the discharge pipe and the discharge pipe, thereby further improving the efficiency of the preliminary gas filtration.

[0053] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A movable dry blowout preventer and overrunning device, comprising a device body (1), a housing (5) is installed inside the device body (1), an exhaust pipe (4) is installed at one end of the housing (5) away from an air inlet end (3), an exhaust port is opened at the port of the exhaust pipe (4), the inner cavities of the exhaust port, the exhaust pipe (4) and the housing (5) are mutually through, and the air inlet end (3) is installed at one end of the housing (5) away from the exhaust pipe (4), characterized in that, The dust removal mechanism is arranged on the device body (1) and is used for primary dust removal and filtration of gas. The dust removal mechanism comprises a motor (201) mounted at one end of the shell (5), the motor (201) is located below the exhaust pipe (4), and the motor (201) drives the filter drum (202) to rotate.

2. A device for movable dry choke and overrunning according to claim 1, characterized in that, The dust removal mechanism further comprises a first support assembly arranged on the filter drum (202). The first support assembly is a support sleeve ring (203) slidably sleeved on the outer wall of the filter drum (202), and the support sleeve ring (203) is fixedly connected with the shell (5). The filter drum (202) is provided with a transmission assembly.

3. A device for movable dry choke and overrunning according to claim 2, characterized in that, The transmission assembly comprises a gear ring (209) fixedly connected to the outer wall of the filter drum (202), the gear ring (209) is located at the end of the support sleeve ring (203) away from the motor (201), the gear ring (209) is engaged with two gears (2010), and the two gears (2010) are located at the upper and lower ends of the filter drum (202), respectively. One of the gears (2010) is provided with a gas feeding assembly.

4. A device for movable dry choke and overrunning according to claim 3, characterized in that, The gas feeding assembly comprises a transmission rod (2011) fixedly connected to one end of the gear (2010), the transmission rod (2011) is located above the support sleeve ring (203), and the end of the transmission rod (2011) away from the gear (2010) is fixedly connected with a fan (2012), and the fan (2012) is located inside the exhaust pipe (4). The transmission rod (2011) is provided with a second support assembly.

5. A device for movable dry choke and overrunning according to claim 4, characterized in that, The second support assembly is a support sleeve frame (2013) slidably sleeved on the outer wall of the transmission rod (2011), and the support sleeve frame (2013) is fixedly connected with the shell (5). The shell (5) is provided with a discharging assembly.

6. A device for movable dry choke and overrunning according to claim 5, characterized in that, The discharging assembly comprises a material collecting frame (206) fixedly connected to one end of the shell (5) away from the exhaust pipe (4), the material collecting frame (206) is located below the gas inlet end (3), a spiral feeding rod (205) is arranged in the material collecting frame (206), the spiral feeding rod (205) is located at one end of the other gear (2010), the spiral feeding rod (205) is rotatably connected with the material collecting frame (206) through a rotating shaft, the spiral feeding rod (205) is fixedly connected with the other gear (2010) through a connecting shaft, and a slag discharging port (207) is formed in the shell (5) at the port of the filter drum (202), and the slag discharging port (207) is located inside the material collecting frame (206). The filter drum (202) is provided with an air inlet assembly.

7. A device for movable dry choke and overrunning according to claim 6, characterized in that, The air inlet assembly comprises an exhaust cylinder (208) arranged in the filter drum (202), the exhaust cylinder (208) is located at one end of the air inlet end (3), the exhaust cylinder (208) is fixedly connected with the air inlet end (3), and a plurality of exhaust holes are equidistantly formed in the outer wall of the exhaust cylinder (208). The exhaust cylinder (208) is provided with a material guiding assembly.

8. A device for movable dry choke and overrunning according to claim 7, characterized in that, The material guiding assembly comprises a spiral scraper (204) arranged outside the exhaust cylinder (208), the spiral scraper (204) is in contact with the inner wall of the filter rotating cylinder (202), and the outer wall of the spiral scraper (204) is symmetrically formed with two fixed plates (2014), and the two fixed plates (2014) are fixedly connected with the exhaust cylinder (208).