CN117246680A - Fire-fighting inspection system for mining belt conveyor - Google Patents
Fire-fighting inspection system for mining belt conveyor Download PDFInfo
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- CN117246680A CN117246680A CN202311546473.7A CN202311546473A CN117246680A CN 117246680 A CN117246680 A CN 117246680A CN 202311546473 A CN202311546473 A CN 202311546473A CN 117246680 A CN117246680 A CN 117246680A
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- spray pipe
- spraying
- spray
- inspection system
- belt conveyor
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- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000007689 inspection Methods 0.000 title claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 92
- 238000005507 spraying Methods 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000003245 coal Substances 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 16
- 239000000428 dust Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/22—Heat or fire protection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the field of alarm devices, in particular to a fire-fighting inspection system for a mining belt conveyor, which structurally comprises the following components: the control box is connected with the remote control end, and the control box is connected with the remote control end jointly and controls the temperature ware, the signal input part and the conveyer belt sensor of control box are joined, first spraying portion and explosion-proof portion have been connected respectively to the signal output part of control box, the second spraying portion that sprays in addition with first spraying portion complex is including spraying the subassembly, spray the both sides port of subassembly and be responsible for the interface and nest each other, the system of patrolling and examining after the improvement is cooled down inflammable position through installing at the inside spraying subassembly of belt, spray the inside central valve of subassembly and distribute the rivers of leading in to being responsible for, make the spray pipe can deflect the change of angle, the scope is wider when spraying, and can protect the body of being responsible for when changing spray pipe water pressure through the cooperation of central valve and shunt tubes.
Description
Technical Field
The invention relates to a fire-fighting inspection system for a mining belt conveyor, and belongs to the field of alarm devices.
Background
The comprehensive protection system of the coal mine belt conveyor mainly comprises a mining flameproof and intrinsic safety type PLC control box, a speed sensor, an emergency stop switch, a temperature sensor, a tearing sensor, a smoke sensor, a coal pile sensor, a deviation sensor, a tension sensor, an electromagnetic valve, a spray head, an intrinsic safety type explosion suppressor, a mining intrinsic safety type temperature controller, a mining intrinsic safety type regional automatic powder spraying fire extinguishing device host machine and the like.
When the temperature of the belt is too high or smoke is generated, the control box gives an alarm and controls the electromagnetic valve to discharge water to remove dust and cool through the atomizing nozzle, the temperature cannot drop within a certain time, the intrinsic safety type automatic powder spraying fire extinguishing device arranged at the position of the conveyor is started, and the host computer controls the non-pressure storage type superfine dry powder fire extinguisher to start, so that superfine dry powder in the non-pressure storage type superfine dry powder fire extinguisher is sprayed out, and the ultra-fine dry powder is pressurized and sprayed to form an aerosol which is uniformly distributed and relatively stable to completely submerge the fire extinguishing space due to small particle mass and large activity.
The structure that current protection system was put out a fire through spray set removes dust mainly sets up on the surface of belt, appears the reason that overheated fire to the belt: the invention aims to design a system capable of efficiently performing fire inspection, which mainly aims at solving the problems that a roller is difficult to rotate due to failure and is difficult to slip or generates heat due to friction caused by belt slipping, the coal dust accelerates the fire phenomenon of a belt after heating, and the main part of combustion is positioned in the belt, and the upper and lower conveying parts are simultaneously combusted to increase fire due to the combustion at the moment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a fire-fighting inspection system for a mining belt conveyor so as to solve the problems.
In order to achieve the above object, the present invention is realized by the following technical scheme: a fire control inspection system for mining belt conveyor, its structure includes: the control box is connected with the remote control end, the control box and the remote control end are connected with the temperature controller together, the signal input end of the control box is connected with the conveyor belt sensor, the signal output end of the control box is respectively connected with a first spraying part and an explosion-proof part, the second spraying part is matched with the first spraying part and comprises a spraying assembly, two side ports of the spraying assembly are mutually nested with a main pipe interface, the spraying assembly is provided with at least one group, the spraying assembly is installed between the main pipes at intervals, and a protective cover is installed at the top of the spraying assembly and used for covering the top of the spraying assembly;
the spray pipe of spray assembly is installed between the pipeline of shunt tubes side, the shunt tubes is equipped with the shunt ports more than two, and the shunt ports are connected with spray pipe and central valve respectively, the shunt tubes symmetry is installed in the both sides of spray pipe and central valve and is connected with the main pipe.
Preferably, the conveyor belt sensor comprises a smoke sensor, a coal pile sensor, a deviation correcting sensor, a tension sensor, a temperature sensor and a speed sensor.
Preferably, the first spraying part comprises a fire-fighting nozzle and a control valve.
Preferably, the spray pipe and the ring groove of the shunt pipe are nested with each other and are movably connected, the shunt pipe is mounted on the surface of the underframe in a matched manner through the bottom clamping seat and the top clamping seat, and the middle part of the underframe is provided with a penetrating groove body.
Preferably, the spray pipe comprises a middle cavity, a first spray pipe and a second spray pipe are respectively arranged on the surface of the middle cavity, the first spray pipe is communicated with the inner cavity of the middle cavity, a fixing ring is protruded out of the ring surface of the second spray pipe, the fixing ring is connected with a tension spring, the tension spring is located between the second spray pipe and the underframe, the traction of the spray pipe is limited, a spray head is further arranged at the port of the second spray pipe and the port of the first spray pipe, a guide plate is arranged in the inner cavity of the middle cavity, one side, opposite to the inflow end of the guide plate, of the middle cavity is a slope, a through groove is formed in the joint of the slope, convex edges are arranged on two sides of the middle cavity and are nested in the annular groove of the shunt pipe, and the middle cavity is connected with the annular groove in a rotating mode.
As the preference, the shower nozzle includes the base, and the protruding surface along that the base upwards extends is equipped with the sliding sleeve, base and sliding sleeve sliding connection, be equipped with the support lug in the through groove in sliding sleeve middle part, carry out spacingly to the jet-flow board through the support lug, the sliding sleeve middle part still is fixed with the movable rod perpendicularly, connects the spout of the inside crossbeam of base through the movable rod, install reset spring between sliding sleeve bottom end and the inside crossbeam of base.
Preferably, the two sides of the sliding sleeve are symmetrically provided with a flow guiding cavity, the cavity of the flow guiding cavity is U-shaped, and the inlet at the bottom of the flow guiding cavity is communicated when the sliding sleeve slides upwards.
Preferably, the outlet at the top of the flow guiding cavity is opposite to the jet flow port of the jet flow plate.
Preferably, the protective cover is provided with a shielding plate matched with the spray pipe, and is matched with the threaded seat at the top of the top clamping seat through bolts.
Preferably, the guide plate is positioned on the side of the middle cavity water flow inlet end away from the middle cavity water flow inlet end, and the distance between the second spray pipe and the inlet opening is closer than that between the second spray pipe and the first spray pipe.
The invention discloses a fire-fighting inspection system for a mining belt conveyor, which has the following effects:
the system of patrolling and examining after the improvement is cooled down inflammable position through installing the inside spray subassembly of belt, spray the inside central valve of subassembly and distribute the rivers that are responsible for introducing, make the spray tube can deflect the change of angle, the scope is wider when spraying, and can protect the body of being responsible for when changing spray tube water pressure through the cooperation of central valve and shunt tubes, the central valve of junction makes the person in charge link up when starting, improve the space that the node circulated, avoid appearing the water hammer effect, protect better to the pipeline.
The deflector that changes the rivers direction has been designed to spray tube inside, rivers produce oblique power through the deflector of well intracavity portion and promote well chamber rotation, make the first spray tube that is located the protection zone remove, and the conveyer belt of washing away the bottom under the circumstances that pressure is big of second spray tube of bottom, recoil power and the oblique power combined action of rivers make well chamber deflect, the well chamber resets when pressure is less than the pulling force of extension spring, the cooperation through above-mentioned part makes the spraying scope of shower nozzle bigger, and need not to increase extra drive part, it is more convenient on maintenance and maintenance.
The sliding sleeve and the base are designed into a movable structure, the sliding sleeve is lifted by the increase of internal pressure after the top sliding sleeve is blocked, so that water flows through the flow guide cavity to wash out the outer surface of the jet flow plate to be automatically dredged, the service life of the spray head is prolonged, and the workload of maintenance personnel is reduced.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a fire inspection system for a mining belt conveyor according to the present invention.
Fig. 2 is a schematic structural view of a second spray portion according to the present invention.
Fig. 3 is a schematic view of the spray assembly of the present invention.
FIG. 4 is a schematic structural view of the nozzle of the present invention.
Fig. 5 is a schematic structural view of the spray head of the present invention.
FIG. 6 is a schematic cross-sectional view of a spray head according to the present invention.
FIG. 7 is a schematic view of the structure of the nozzle inner guide plate of the present invention.
FIG. 8 is a schematic view of the movement direction of the nozzle according to the present invention.
Fig. 9 is a flow chart illustrating the operation of the present invention.
In the figure:
1. a control box; 2. a conveyor belt sensor; 3. a temperature controller; 4. a remote control end; 5. a first spray section; 6. an explosion-proof section; 7. a second spray section;
71. a protective cover; 72. a spray assembly; 73. a main pipe; 74. a chassis;
721. a bottom clamping seat; 722. a top clamping seat; 723. a spray pipe; 724. a central valve; 725. a shunt;
231. a first nozzle; 232. a middle cavity; 233. a guide plate; 234. a second nozzle; 235. a spray head; 236. a tension spring;
351. a diversion cavity; 352. a jet plate; 353. a sliding sleeve; 354. a base; 355. a movable rod; 356. and a return spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The structure that current protection system was put out a fire through spray set removes dust mainly sets up on the surface of belt, appears the reason that overheated fire to the belt: mainly because the cylinder breaks down and blocks and be difficult to rotate or with because the belt skids and then rubs the heat generation, be located transport mechanism's bottom in particular, the phenomenon of starting to fire of buggy acceleration belt after generating heat to the main part of burning is located the inside of belt, and the burning can lead to upper and lower transport portion to burn simultaneously and lead to the intensity of a fire increase this moment, so in order to solve foretell problem, the present case has proposed following technical scheme:
referring to fig. 1 to 9, the present invention provides a technical scheme of a fire inspection system for a mining belt conveyor: the structure comprises: the control box 1, the control box 1 is connected with the remote control end 4, the control box 1 and the remote control end 4 are connected with the temperature controller 3 together, the signal input end of the control box 1 is connected with the conveyor belt sensor 2, the signal output end of the control box 1 is respectively connected with the first spraying part 5 and the explosion-proof part 6, the second spraying part 7 is matched with the first spraying part 5, the second spraying part 7 comprises spraying components 72, two side ports of the spraying components 72 are mutually nested with the interfaces of the main pipe 73, the spraying components 72 are provided with at least one group, are installed between the main pipes 73 at intervals, and the top of the spraying components 72 is provided with a protective cover 71 for covering;
the spray pipe 723 of the spray assembly 72 is installed between the pipelines at the side edges of the shunt pipes 725, the shunt pipes 725 are provided with more than two shunt ports, the shunt ports are respectively connected with the spray pipe 723 and the central valve 724, and the shunt pipes 725 are symmetrically installed at two sides of the spray pipe 723 and the central valve 724 and are connected with the main pipe 73.
The system mainly uses the control box 1 to connect a field detection mechanism and an execution mechanism, the control box 1 adopts an explosion-proof PLC control box, and a remote control end 4 is also arranged to remotely monitor the whole conveying system.
The conveyor belt sensor 2 of the control box 1 mainly adopts a speed sensor, an emergency stop switch, a temperature sensor, a tearing sensor, a smoke sensor, a coal pile sensor, a deviation sensor, a tension sensor and the like, and the actuating mechanism adopts a first spraying part 5, an explosion-proof part 6 and a second spraying part 7, and mainly comprises the following actuating components: solenoid valve, shower nozzle, this ampere of formula explosion suppression ware, mining this ampere of formula temperature controller, mining this ampere of regional automatic powder extinguishing device host computer that spouts etc..
The second spraying part 7 is mainly installed in the middle of the coal mine belt conveyor, and is specifically located on the chassis of the driving roller, and is connected with a main pumping pipeline through a main pipe 73, so as to avoid excessive dust and damage caused by extrusion, the main pipe 73 can be installed and arranged along the frame in the middle of the coal mine belt conveyor in order to prevent damage caused by collision when the spraying assembly 72 is placed in a protection space formed by the protective cover 71 and the chassis 74.
The main structure of spray assembly 72 is including the shunt tubes 725 that are used for connecting the person in charge 73, shunt tubes 725 in this application are provided with four interfaces, be one respectively and advance three, the export is connected with the spray tube 723 of both sides respectively, and be located the central valve 724 in middle part, and shunt tubes 725 and the protruding part of cavity 232 of spray tube 723 are connected and cooperate through the spout, spray tube 723 can rotate under the support of shunt tubes 725, in order to improve the smoothness when rotating, and avoid leading to stress to make interface department deformation hindered because of long distance pipeline laying, support that the support that bottom holder 721 and top holder 722 formed is assisted fixedly in shunt tubes 725 and spray tube 723 junction, improve the concentricity of both and reduce edge resistance.
The protruding screw at the top of the top clamping seat 722 is matched with the protective cover 71 to fix the protective cover 71.
The spray pipe 723 is mainly used for cooling the middle part of a belt of the coal mine belt conveyor, the surface of a middle cavity 232 of the spray pipe 723 is provided with a first spray pipe 231 and a second spray pipe 234 which are oppositely arranged, one spray pipe sprays the top, the other spray pipe sprays the bottom, a spray nozzle 235 which sprays preferably adopts a spray plate 352 with a flat structure, the spraying range is larger, and the cooling speed is improved.
A guide plate 233 (refer to fig. 7) is installed in the inner cavity of the middle cavity 232, a slope surface structure is adopted on one side where the guide plate 233 collides with water flow, guide holes are formed in adjacent positions of the slope surface, namely, oblique force can be generated when the water flow collides with the slope surface, so that the guide plate 233 integrally rotates, then water flow flows out into the next pipeline through the guide holes, a limiting tension spring 236 is installed between the middle cavity 232 and the bottom frame 74, pulling and resetting are carried out through the tension spring 236, when the oblique force of the water flow is larger than the tension force of the tension spring 236, the whole of the spray pipe 723 rotates, a spray head 235 with the upper end positioned in the shield cover 71 moves out, the inner part of the conveying belt is sprayed, and the tension spring 236 enables the middle cavity 232 to reset when the water flow slows down.
Further, because the dust of production environment is more, even if the shielding of protective cover 71, unavoidable still has the exit that the dust got into jet plate 352 to cause shielding and then appear blockking up, this application sets up jet plate 352 to can change after damaging completely for this, jet plate 352 sets up and is used for warp rivers at the opening part of sliding sleeve 353, sliding sleeve 353 inside has still installed movable rod 355 and has pulled, movable rod 355 bottom cooperates with base 354 internal fixation spare through reset spring 356, and sliding sleeve 353 can slide under the support of movable rod 355 to reset through reset spring 356.
The pressure of the jet flow plate 352 can be reduced through the design of the telescopic structure, once the jet flow plate 352 is blocked, the whole sliding sleeve 353 is jacked up, the guide cavities 351 (refer to fig. 6) are arranged at two sides of the sliding sleeve 353, when the sliding sleeve 353 is pushed to the guide cavities 351 to be communicated with the inner cavity of the base 354, water flows are sprayed out through the guide cavities 351, sprayed water flows continuously flush the surface of the jet flow plate 352, scale on the surface of the jet flow plate 352 is removed, after long-time flushing, once the scale on the outlet of the jet flow plate 352 is notched, the water can slowly pass through, after the water pressure after passing through can not push the sliding sleeve 353 out, the sliding sleeve 353 is reset, and the water flows do not pass through the guide cavities 351 any more, so that the water flows pumped by the jet flow plate 352 are prevented from being disturbed, and the water flows pumped by the jet flow of the guide cavities 351 can not be flushed intensively.
The operation mode of the inspection system refers to fig. 9:
the structure of the conveyor belt is detected through the speed sensor, the scram switch, the temperature sensor, the tearing sensor, the smoke sensor, the coal piling sensor, the deviation sensor and the tension sensor in the conveyor belt sensor 2, detected data are input into the local control box 1, and the control box 1 transmits the data to the remote control end 4 through a network, so that the remote monitoring is convenient for maintenance personnel.
The frame of the coal mine belt conveyor is correspondingly provided with a temperature sensor, the temperature sensor mainly detects the ambient temperature, and the temperature sensor is attached to the frame to detect the temperature of the frame, for example, the roller body is easy to generate on a roller body support, and the roller body generates heat which is a great part of reasons for causing a fire.
After the temperature controller 3 detects that the temperature of a part is abnormal, the temperature is fed back into the control box 1, the control box 1 transmits signals to the remote control end 4 and drives the first spraying part 5 and the second spraying part 7 of the actuating mechanism to work, when the temperature of the first spraying part 5 and the second spraying part 7 is out of control and cannot be reduced after working, the explosion-proof part 6 is started to further extinguish fire, and the specific explosion-proof part 6 adopts the mining intrinsic safety type regional automatic powder spraying fire extinguishing device.
The second shower portion 7 operates mainly by:
when spraying is carried out daily, water flow is conveyed from the main pipe 73 through the pump body and is conveyed to the spraying assembly 72 of each node, when equipment is used for reducing the water flow pressure in the main pipe 73 and controlling the rotation range of the spraying pipe 723, the control box 1 drives the central valve 724 to be opened, the flow passage of the main pipe 73 is dispersed by the shunt pipes 725, the water flow pressure passing through the spraying pipe 723 is reduced, then the water flow is conveyed by re-converging through the opposite shunt pipes 725, and the pressure reduction when the water flow passes through the nodes is avoided.
When an emergency fire occurs, more water flows are required to be sprayed by the spraying pipe 723, so that more water pressure is required, the central valve 724 is electrified to be closed, the preferable central valve 724 adopts a solenoid valve structure, a flow passage which coincides with the axis of the main pipe 73 after the closing is closed, the water flows are conveyed by the spraying pipes 723 at two sides, the internal pressure of the spraying pipes 723 is improved, the rotating amplitude of the spraying pipes 723 is larger, the water flows are more violent, the temperature of the inner surface area of a belt is rapidly reduced, and the combustion of the belt at the upper part is avoided to ignite the belt at the bottom.
When the fire is too rapid and the temperature cannot be controlled, the explosion-proof part 6 is started, the explosion-proof part 6 is formed by a mining flameproof and intrinsic safety host machine, a mining intrinsic safety type temperature controller and an explosion-proof device, the explosion-proof device is started to work through the detection of the temperature by the mining intrinsic safety type temperature controller, and the main working principle of the explosion-proof device is as follows: the compressed superfine dry powder is started through solid-gas conversion, high-pressure air flow drives the superfine dry powder to spray out the fire extinguishing superfine dry powder in the main body to form superfine dry powder cloud foggy, the superfine dry powder cloud foggy can stably suspend in tunnel air, and the device achieves the effect of isolating flame by utilizing the speed difference of shock wave propagation speed and flame propagation speed.
Further superfine dry powder extinguishing device can adopt suspension type and put ground formula and cooperate, and it is stronger to put ground formula superfine dry powder extinguishing device's directionality, can spray to the stronger region of flame, and cooperation suspension type superfine dry powder extinguishing device then can avoid flame diffusion to improve the security.
The improved inspection system cools the inflammable position through the spraying assembly 72 installed inside the belt, the central valve 724 inside the spraying assembly 72 distributes water flow introduced by the main pipe 73, so that the spraying pipe 723 can change the deflection angle, the range is wider in spraying, the pipe body of the main pipe 73 can be protected while the water pressure of the spraying pipe 723 is changed through the cooperation of the central valve 724 and the shunt pipe 725, the central valve 724 at the connecting part enables the main pipe 73 to be communicated during starting, the space for node circulation is improved, the water hammer effect is avoided, and the pipe body is better protected.
The deflector 233 for changing the water flow direction is designed in the spray pipe 723, water flows through the deflector 233 in the middle cavity 232 to generate oblique force to push the middle cavity 232 to rotate, so that the first spray pipe 231 positioned in a protection area moves, the second spray pipe 234 at the bottom is used for flushing the conveyer belt recoil force at the bottom to act together with the oblique force of the water flow under the condition of high pressure, so that the middle cavity 232 deflects, the middle cavity 232 is reset when the pressure is smaller than the tension force of the tension spring 236, the spraying range of the spray head 235 is larger through the cooperation of the components, no additional driving component is needed, and the maintenance and the overhaul are more convenient.
The sliding sleeve 353 and the base 354 are designed into a movable structure, and after the top sliding sleeve 353 is blocked, the inner pressure is increased to lift the sliding sleeve 353, so that water flows through the flow guide cavity 351 to wash out the outer surface of the jet plate 352 to automatically dredge, the service life of the spray head 235 is prolonged, and the workload of maintenance personnel is reduced.
The foregoing has described only the basic principles and preferred embodiments of the present invention, and many variations and modifications will be apparent to those skilled in the art in light of the above description, which variations and modifications are intended to be included within the scope of the present invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A fire control inspection system for mining belt conveyor, its structure includes: control box (1), control box (1) are connected with remote control end (4), and control box (1) are connected with remote control end (4) together and are controlled temperature ware (3), the signal input part and the conveyer belt sensor (2) of control box (1) joint, first spraying portion (5) and explosion-proof portion (6) have been connected respectively to the signal output part of control box (1), its characterized in that:
the first spraying part (5) is matched with the second spraying part (7), the second spraying part (7) comprises spraying components (72), two side ports of the spraying components (72) are mutually nested with interfaces of the main pipe (73), the spraying components (72) are provided with at least one group, the spraying components are installed between the main pipes (73) at intervals, and a protective cover (71) is installed at the top of the spraying components (72) and used for covering the main pipe;
the spray pipe (723) of the spray assembly (72) is arranged between pipelines at the side edges of the shunt pipes (725), the shunt pipes (725) are provided with more than two shunt ports, the shunt ports are respectively connected with the spray pipe (723) and the central valve (724), and the shunt pipes (725) are symmetrically arranged at the two sides of the spray pipe (723) and the central valve (724) and are connected with the main pipe (73).
2. A fire inspection system for a mining belt conveyor as in claim 1 wherein: the conveyor belt sensor (2) comprises a smoke sensor, a coal pile sensor, a deviation correcting sensor, a tension sensor, a temperature sensor and a speed sensor.
3. A fire inspection system for a mining belt conveyor as in claim 1 wherein: the first spraying part (5) comprises a fire-fighting spray head and a control valve.
4. A fire inspection system for a mining belt conveyor as in claim 1 wherein: the jet pipe (723) and the ring grooves of the shunt pipes (725) are mutually nested and are movably connected, the shunt pipes (725) are mounted on the surface of the bottom frame (74) in a matched mode through the bottom clamping seat (721) and the top clamping seat (722), and a penetrating groove body is formed in the middle of the bottom frame (74).
5. A fire inspection system for a mining belt conveyor as in claim 4 wherein: the spray pipe (723) comprises a middle cavity (232), a first spray pipe (231) and a second spray pipe (234) are respectively arranged on the surface of the middle cavity (232), the first spray pipe (231) is communicated with the inner cavity of the middle cavity (232) through the second spray pipe (234), a fixing ring protrudes out of the annular surface of the second spray pipe (234), the fixing ring is connected with a tension spring (236), the tension spring (236) is located between the second spray pipe (234) and a bottom frame (74), the spray pipe (723) is pulled and limited, a spray head (235) is further arranged at the port of the second spray pipe (234) and the first spray pipe (231), a guide plate (233) is arranged in the inner cavity of the middle cavity (232), one side, opposite to the inflow end of the middle cavity (232), of the guide plate (233) is a slope, a through groove is formed in the joint of the slope, two sides of the middle cavity (232) are provided with convex edges, the convex edges are nested in the groove of a split-flow pipe (725), and the middle cavity (232) is connected with the groove in a rotating mode.
6. A fire inspection system for a mining belt conveyor as in claim 5 wherein: the shower nozzle (235) is equipped with sliding sleeve (353) including base (354) along the surface with the protruding of base (354) upwards extension, base (354) and sliding sleeve (353) sliding connection, be equipped with support lug in the through groove in sliding sleeve (353) middle part, it is spacing to jet flow board (352) through support lug, sliding sleeve (353) middle part still vertical fixation has movable rod (355), connects the spout of base (354) inside crossbeam through movable rod (355), install reset spring (356) between sliding sleeve (353) bottom end and base (354) inside crossbeam.
7. A fire inspection system for a mining belt conveyor as in claim 6 wherein: the two sides of the sliding sleeve (353) are symmetrically provided with a flow guide cavity (351), the cavity of the flow guide cavity (351) is U-shaped, and a flow inlet at the bottom of the flow guide cavity (351) is communicated when the sliding sleeve (353) slides upwards.
8. A fire inspection system for a mining belt conveyor as in claim 7 wherein: the outlet at the top of the diversion cavity (351) is opposite to the jet flow port of the jet flow plate (352).
9. A fire inspection system for a mining belt conveyor as in claim 6 wherein: the protective cover (71) is provided with a shielding plate matched with the spray pipe (723), and the protective cover (71) is matched with a threaded seat at the top of the top clamping seat (722) through bolts.
10. A fire inspection system for a mining belt conveyor as in claim 5 wherein: the guide plate (233) is positioned on the side of the middle cavity (232) away from the water flow inlet end, and the distance between the guide plate (233) and the inlet is closer to the second spray pipe (234) than to the distance between the guide plate and the first spray pipe (231).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311546473.7A CN117246680B (en) | 2023-11-20 | 2023-11-20 | Fire-fighting inspection system for mining belt conveyor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311546473.7A CN117246680B (en) | 2023-11-20 | 2023-11-20 | Fire-fighting inspection system for mining belt conveyor |
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| CN117246680A true CN117246680A (en) | 2023-12-19 |
| CN117246680B CN117246680B (en) | 2024-02-02 |
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| CN202311546473.7A Active CN117246680B (en) | 2023-11-20 | 2023-11-20 | Fire-fighting inspection system for mining belt conveyor |
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| CN216958225U (en) * | 2022-03-14 | 2022-07-12 | 埃泰斯新能源科技(上海)有限公司 | Multifunctional pipeline and liquid cooling unit |
| CN218743013U (en) * | 2022-10-13 | 2023-03-28 | 晋江鼎辉机械有限公司 | Novel flame-retardant oven for drying line irradiation |
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| KR20130050827A (en) * | 2011-11-08 | 2013-05-16 | 주식회사 포스코 | Discharge apparatus of coke of belt conveyor |
| CN106219193A (en) * | 2016-10-01 | 2016-12-14 | 西安科技大学 | A kind of belt transportation system |
| CN213622392U (en) * | 2020-11-25 | 2021-07-06 | 刘赟臣 | Automatic spraying device under rubber belt conveyor belt |
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|---|---|
| CN117246680B (en) | 2024-02-02 |
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