Coal conveying gallery position feedback type inspection device and working method

Abstract

The invention relates to a coal conveying gallery position feedback type inspection device and a working method.The coal conveying gallery position feedback type inspection device comprises an I-shaped guide rail and an inspection trolley, the inspection trolley is slidably connected with the I-shaped guide rail, positioning clamps are arranged in the middle of a lower side plate of the I-shaped guide rail at intervals, and the inspection trolley comprises a supporting plate; two X-shaped supporting frames are symmetrically arranged at the top of the supporting plate, motors with encoders are connected to the upper ends of the X-shaped supporting frames, walking wheels are fixedly connected to the output ends of the motors with the encoders, and the walking wheels are erected on the I-shaped guide rails in a sliding mode; a feedback processing device is further arranged at the top of the supporting plate. The problem that inconvenience is brought to maintainers and operators due to the fact that an existing coal conveying gallery inspection device is complex in structure and not easy to maintain or cannot feed back the location of abnormal conditions can be solved.

Description

Technical Field

[0001] The invention relates to a coal conveying gallery position feedback type inspection device and a working method, belonging to the technical field of coal conveying gallery inspection. Background Art

[0002] In a thermal power plant that uses coal as fuel, the coal needs to pass through multiple coal transportation corridors and multiple transfer stations during the process of being transported from coal ships or coal trucks to the boiler. Some coal transportation corridors can be up to one thousand meters long. During the transportation of coal in the coal transportation corridors, coal powder may float and accumulate in cable troughs or other corners.

[0003] The Chinese patent number CN216229371U discloses a coal conveyor belt corridor track inspection robot, which includes a track with an I-shaped cross-section, an inspection robot body that travels along the lower wing plate of the track, and the inspection robot body includes a frame, and auxiliary wheels that travel along the top surface of the lower wing plate of the track and positioning wheels that roll along the vertical side walls of the rail waist of the track are provided on the top of the frame; a camera is provided at the bottom of the frame; dust removal brushes are provided on both sides of the frame in a direction parallel to the auxiliary wheels, and dust dumping grooves are obliquely provided on the frame on the outside of the dust removal brushes and in the same direction as the dust removal brushes. The camera can collect the situation in the track and clean the corridor at the same time, but the location of the abnormal situation cannot be fed back. The camera can only capture the approximate location and cannot locate the exact location of the corridor.

[0004] Although it is cleaned regularly, there is still a risk of fire caused by spontaneous combustion of coal powder. At the same time, carbon monoxide may be produced in the coal transportation corridor due to spontaneous combustion of coal powder, which poses a threat to the lives of the workers in the corridor. The existing coal transportation corridor inspection devices are either complex in structure and difficult to maintain, or cannot provide feedback on the location of abnormal situations, which will cause inconvenience to maintenance personnel or operators. Summary of the invention

[0005] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a coal conveyor corridor position feedback type inspection device and working method, which can solve the problem that the existing coal conveyor corridor inspection device is complex in structure and difficult to maintain or cannot feedback the location of abnormal situations, causing inconvenience to maintenance personnel and operating personnel.

[0006] The technical solution of the present invention is as follows:

[0007] A coal conveyor corridor position feedback type inspection device comprises an I-shaped guide rail and an inspection trolley, the inspection trolley is slidably connected to the I-shaped guide rail, positioning cards are provided at intervals in the middle position of the lower side plate of the I-shaped guide rail, the inspection trolley comprises a support plate, two X-shaped support frames are symmetrically arranged on the top of the support plate, the upper end of the X-shaped support frame is connected to an encoder type motor, the output end of the encoder type motor is fixedly connected to a walking wheel, and the walking wheel is slidably mounted on the I-shaped guide rail; a feedback processing device is also arranged on the top of the support plate.

[0008] Among them, the feedback processing device includes a central processing box arranged on the top of the support plate, a thermal imaging camera is provided at the front end of the central processing box, a 4G communication module is provided on the left side of the central processing box, a carbon monoxide detection module is provided on the right side of the central processing box, and a positioning card communication module is provided on the upper end of the central processing box.

[0009] Wherein, a single chip computer module and a battery module are arranged inside the central processing box.

[0010] Among them, the single-chip microcomputer module is electrically connected to the encoder-type motor, the thermal imaging camera, the 4G communication module, the carbon monoxide detection module, and the positioning card communication module, and the single-chip microcomputer module communicates with the main control machine through the 4G communication module.

[0011] Among them, a shielding plate is fixedly connected to the top of the X-shaped support frame, and coal pushing plates are fixedly connected to the front and rear ends of the shielding plate.

[0012] Wherein, the front and rear sides of the top of the shielding plate are connected with guide wheel fixing rods, the guide wheel fixing rods pass through the shielding plate and the guide wheel is fixed to the lower end of the guide wheel fixing rods.

[0013] Wherein, a clamping wheel is connected at the center of the X-shaped support frame.

[0014] A working method of a coal conveyor corridor position feedback type inspection device, characterized in that it comprises the following steps:

[0015] S1: The upper end of the I-shaped guide rail in the inspection device is fixed in the coal conveying corridor, and the operator sends a signal to control the inspection vehicle through the main control computer. When the inspection vehicle receives the automatic inspection command sent by the main control computer, the inspection vehicle moves forward along the I-shaped guide rail;

[0016] S2: When the inspection vehicle passes the positioning card, the positioning card communication module exchanges information with the positioning card to obtain the serial number of the positioning card, and then obtains the location information of the inspection vehicle and replaces it with the original location information data;

[0017] S3: During the walking process, the data measured by the carbon monoxide detection module and the data collected by the thermal imaging camera are transmitted to the single-chip microcomputer for analysis, and are transmitted to the main control computer through the 4G communication module to determine whether the inspection vehicle continues to walk;

[0018] S4: If there is no abnormality during the inspection and no stop command is received, the inspection vehicle will continue to move to the position of the last positioning card and return in the opposite direction. The return process will perform the same inspection behavior as when moving forward. If there is no abnormality during the inspection in the return diagram and no stop command is received, the inspection vehicle will continue to move to the first positioning card and stop.

[0019] Wherein, in step S3:

[0020] If an overheating point or excessive carbon monoxide value occurs, the single-chip microcomputer transmits the location information, excessive carbon monoxide value, and overheating point heat value to the main control machine through the 4G communication module for processing by the operating personnel, while the inspection vehicle continues to move.

[0021] Wherein, in step S3:

[0022] If the temperature exceeds the limit point, the microcontroller transmits the location information, carbon monoxide excess value, and temperature limit calorific value to the main control machine through the 4G communication module for processing by the operating personnel. At the same time, the inspection vehicle stops moving and waits for instructions from the main control machine.

[0023] The present invention has the following beneficial effects:

[0024] The inspection device has a simple structure and is easy to maintain. It can send location and alarm information when gas hazards or coal powder spontaneous combustion risks are detected. The location accuracy can be increased to the meter level by increasing the number of positioning cards, making it easier for maintenance and operation personnel to analyze and deal with dangerous situations. This greatly reduces the cost of monitoring equipment when the location and alarm information are obtained simultaneously during long-distance coal transportation corridor inspections, while ensuring the safety of personnel and coal transportation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the inspection vehicle of the present invention;

[0026] Figure 2 This is a schematic diagram of the I-shaped guide rail structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the inspection vehicle of the present invention installed on an I-shaped guide rail structure;

[0028] Figure 4 This is a flowchart of the instruction processing part of the main control machine of the present invention;

[0029] Figure 5 This is a block diagram of some main processes of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the travel wheel of the present invention.

[0031] The reference numerals in the figure are as follows:

[0032] 100. I-shaped guide rail; 101. Positioning card; 200. Inspection trolley; 201. X-shaped support frame; 202. Shielding plate; 203. Coal pushing plate; 204. Guide wheel fixing rod; 205. Guide wheel; 206. Motor with encoder; 207. Travel wheel; 208. Clamping wheel; 209. Support plate; 210. Central processing box; 211. Thermal imaging camera; 212. 4G communication module; 213. Carbon monoxide detection module; 214. Positioning card communication module; 2071. Tire body; 2072. Water storage jacket; 2073. Outer tire; 2074. Arc guide groove. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See also Figures 1 to 6 , the invention provides a technical solution:

[0035] A coal conveying corridor position feedback type inspection device includes an I-shaped guide rail 100 and an inspection trolley 200. The inspection trolley 200 is slidably connected to the I-shaped guide rail 100, and the inspection trolley 200 slides on the I-shaped guide rail 100. Positioning cards 101 are arranged at intervals in the middle position of the lower side plate of the I-shaped guide rail 100. The position information is updated after passing the positioning cards 101 during the walking process; the plurality of positioning cards 101 are arranged at intervals of 2 meters in the middle position of the bottom of the I-shaped guide rail 100.

[0036] The inspection vehicle 200 includes a support plate 209, and two X-shaped support frames 201 are symmetrically arranged on the top of the support plate 209. The upper end of the X-shaped support frame 201 is connected to an encoder motor 206, and the output end of the encoder motor 206 is fixedly connected to a running wheel 207, and the running wheel 207 is slidably mounted on the I-shaped guide rail 100; a feedback processing device is also arranged on the top of the support plate 209; the encoder motor 206 rotates to drive the running wheel 207 to move on the I-shaped guide rail 100, and the output ends of the encoder motors 206 on the tops of the two X-shaped support frames 201 are arranged opposite to each other, and the running wheels 207 of the opposite encoder motors 206 are respectively arranged on both sides of the I-shaped guide rail 100;

[0037] A shielding plate 202 is fixedly connected to the top of the X-shaped support frame 201, and a coal pushing plate 203 is fixedly connected to the front and rear ends of the shielding plate 202; the shielding plate 202 is used to shield coal powder to prevent the coal powder from falling between the two walking wheels 207 and hindering walking, and the coal pushing plate 203 is used to push away the coal powder on the walking route. Specifically, the coal pushing plate 203 is a V-shaped steel plate. The bottom of the coal pushing plate 203 abuts against the lower side plate of the I-shaped guide rail 100, and the lower side plate of the I-shaped guide rail 100 is provided with through holes at intervals, and the coal powder pushed by the coal pushing plate 203 falls from the interval through holes of the lower side plate of the I-shaped guide rail 100.

[0038] The front and rear sides of the top of the baffle plate 202 are connected with guide wheel fixing rods 204, which pass through the baffle plate 202 and the lower end of which is fixed with guide wheels 205; the guide wheels 205 are used to prevent the inspection trolley 200 from deviating left and right when walking, and the center of the X-shaped support frame 201 is connected with a clamping wheel 208, which is used to prevent the inspection trolley 200 from bumping up and down.

[0039] The feedback processing device includes a central processing box 210 arranged on the top of the support plate 209, a thermal imaging camera 211 is provided at the front end of the central processing box 210, a 4G communication module 212 is provided on the left side of the central processing box 210, a carbon monoxide detection module 213 is provided on the right side of the central processing box 210, and a positioning card communication module 214 is provided on the upper end of the central processing box 210; a single-chip microcomputer module and a battery module are arranged inside the central processing box 210, and the single-chip microcomputer module is electrically connected to the encoder motor 206, the thermal imaging camera 211, the 4G communication module 212, the carbon monoxide detection module 213, and the positioning card communication module 214, and the single-chip microcomputer module communicates with the main control machine through the 4G communication module 212.

[0040] like Figure 3As shown, in the specific implementation of the present invention, the upper end of the I-shaped guide rail 100 in the inspection device is installed in the coal conveying corridor, and the operator sends a signal to control the inspection trolley 200 through the main control computer. When the inspection trolley 200 receives the automatic inspection instruction, the inspection trolley 200 moves forward along the I-shaped guide rail 100 according to the program written in the main control microcontroller. When passing through the positioning card 101 during the walking process, the positioning card communication module 214 exchanges information with the positioning card 101 to obtain the serial number of the positioning card 101, and then obtains the position information of the inspection trolley 200 and replaces it with the original position information data. During the walking process, the data measured by the carbon monoxide detection module 213 and the data collected by the thermal imaging camera 211 are transmitted to the microcontroller for analysis by the microcontroller. If there is an overheating point or carbon monoxide exceeds the standard value, the microcontroller transmits the position information, carbon monoxide exceeding the standard value, and overheating point heat value to the main control computer through the 4G communication module 212 for processing by the operator, and the inspection trolley 200 continues to walk. If the temperature exceeds the limit point, the single chip computer transmits the position information, the carbon monoxide exceeding the limit value, and the calorific value of the temperature exceeding the limit point to the main control machine through the 4G communication module 212 for processing by the operator. At the same time, the inspection car 200 stops walking and waits for the main control machine command. If there is no abnormality during the inspection process and no stop command is received, the inspection car 200 will continue to walk to the position of the last positioning card 101 and return in the opposite direction. The return process will also perform the inspection behavior when moving forward. If there is no abnormality during the return inspection process and no stop command is received, the inspection car 200 will continue to walk to the first positioning card 101 and stop. Enter the state of waiting for the main control machine command.

[0041] As a preferred embodiment, Figure 6 As shown, the walking wheel 207 includes a tire body 2071, a water storage jacket 2072 is arranged on the outer ring of the tire body 2071, a tire 2073 is arranged on the outer periphery of the water storage jacket 2072, a plurality of arc-shaped guide grooves 2074 are arranged on the tire 2073 at intervals, the ends of the arc-shaped guide grooves 2074 are integrally formed with the water storage jacket 2072, a ceramic glass fiber layer is arranged on the tire 2073, and the ends of the arc-shaped guide grooves 2074 are made of rubber or other materials that melt at high temperatures. When a fire occurs in the corridor or the temperature is high, sparks or high temperature will melt the end of the arc guide groove 2074. At this time, the water flow inside the water storage jacket 2072 will overflow from the arc guide groove 2074. Under the Coanda effect, the water flow will flow along the curvature of the arc guide groove 2074, that is, it will remain on the surface of the outer tire 2073, which will have a certain degree of fire-stopping effect or eliminate the possibility of sparks during walking; at the same time, the outer tire 2073 and the arc guide groove 2074 can also increase the friction by increasing the contact surface.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A coal conveyor corridor position feedback inspection device, comprising an I-shaped guide rail (100) and an inspection trolley (200), characterized in that: The inspection trolley (200) is slidably connected to the I-shaped guide rail (100), and a positioning card (101) is provided at intervals in the middle position of the lower side plate of the I-shaped guide rail (100). The inspection trolley (200) includes a support plate (209), and two X-shaped support frames (201) are symmetrically arranged on the top of the support plate (209). The upper end of the X-shaped support frame (201) is connected to an encoder-type motor (206), and the output end of the encoder-type motor (206) is fixedly connected to a running wheel (207), and the running wheel (207) is slidably mounted on the I-shaped guide rail (100); a feedback processing device is also arranged on the top of the support plate (209).

2. A coal conveyor corridor position feedback inspection device according to claim 1, characterized in that: The feedback processing device comprises a central processing box (210) arranged on the top of the support plate (209), a thermal imaging camera (211) is arranged at the front end of the central processing box (210), a 4G communication module (212) is arranged at the left side of the central processing box (210), a carbon monoxide detection module (213) is arranged at the right side of the central processing box (210), and a positioning card communication module (214) is arranged at the upper end of the central processing box (210); the positioning card communication module (214) uses wireless radio frequency identification technology to communicate with the positioning card (101).

3. A coal conveyor corridor position feedback inspection device according to claim 2, characterized in that: The central processing box (210) has a single-chip computer module and a battery module disposed therein.

4. A coal conveyor corridor position feedback inspection device as claimed in claim 3, characterized in that: The single-chip microcomputer module is electrically connected to the encoder-type motor (206), the thermal imaging camera (211), the 4G communication module (212), the carbon monoxide detection module (213), and the positioning card communication module (214), and the single-chip microcomputer module communicates with the main control machine via the 4G communication module (212).

5. A coal conveyor corridor position feedback inspection device according to claim 1, characterized in that: The top end of the X-shaped support frame (201) is fixedly connected to a shielding plate (202), the front and rear ends of the shielding plate (202) are fixedly connected to coal pushing plates (203), and through holes are arranged at intervals on the bottom plate of the I-shaped guide rail (100).

6. A coal conveyor corridor position feedback inspection device according to claim 5, characterized in that: The front and rear sides of the top of the shielding plate (202) are connected to guide wheel fixing rods (204), the guide wheel fixing rods (204) pass through the shielding plate (202), and a guide wheel (205) is fixed to the lower end of the guide wheel fixing rods (204).

7. A coal conveyor corridor position feedback inspection device according to claim 5, characterized in that: The center of the X-shaped support frame (201) is connected to a clamping wheel (208).

8. A working method of a coal conveyor corridor position feedback type inspection device, characterized in that: The following steps are involved: S1: The upper end of the I-shaped guide rail (100) in the inspection device is fixed in the coal conveying corridor, and the operator sends a signal to the inspection vehicle (200) through the main control computer. When the inspection vehicle (200) receives the automatic inspection instruction sent by the main control computer, the inspection vehicle (200) moves forward along the I-shaped guide rail (100); S2: When the inspection vehicle (200) passes the positioning card (101) during its movement, the positioning card communication module (214) exchanges information with the positioning card (101) to obtain the serial number of the positioning card (101), thereby obtaining the position information of the inspection vehicle (200) and replacing the original position information data; S3: During the walking process, the data measured by the carbon monoxide detection module (213) and the data collected by the thermal imaging camera (211) are transmitted to the single-chip microcomputer for analysis by the single-chip microcomputer, and are transmitted to the main control computer through the 4G communication module (212) to determine whether the inspection vehicle (200) continues to walk; S4: If there is no abnormality during the inspection process and no stop command is received, the inspection vehicle (200) will continue to move to the position of the last positioning card (101) and return in the opposite direction. The return process will also perform the inspection behavior during the forward movement. If there is no abnormality during the inspection process on the way back and no stop command is received, the inspection vehicle (200) will continue to move to the first positioning card (101) and stop.

9. A working method of a coal conveyor corridor position feedback type inspection device as claimed in claim 8, characterized in that: In step S3: If an overheating point or excessive carbon monoxide value occurs, the single chip computer transmits the location information, excessive carbon monoxide value, and overheating point value to the main control computer through the 4G communication module (212) for processing by the operating personnel, while the inspection vehicle (200) continues to move.

10. The working method of the coal conveying gallery position feedback type inspection device according to claim 8, characterized in that: In step S3: If the temperature exceeds the limit point, the single chip computer transmits the position information, the carbon monoxide exceeding the limit value, and the calorific value of the temperature exceeding the limit point to the main control machine through the 4G communication module (212) for processing by the operating personnel. At the same time, the inspection vehicle (200) stops moving and waits for the main control machine's instructions.

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