CN209988617U

CN209988617U - Coal blockage prevention protection device for coal conveying belt conveyor

Info

Publication number: CN209988617U
Application number: CN201920849187.0U
Authority: CN
Inventors: 赵勇; 孙越; 姜哲; 单国勇; 王传奇
Original assignee: MAANSHAN DANGTU POWER GENERATION Co Ltd
Current assignee: MAANSHAN DANGTU POWER GENERATION Co Ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-01-24
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses a coal conveyor belt machine prevents chute blockage protection device belongs to and prevents stifled coal protection device technical field. The utility model discloses a coal conveyor is with preventing chute blockage protection device, including dodge gate, coal receiving box and stay cord switch, set up a through-hole on the coal breakage outer wall, the dodge gate covers in the through-hole outside, the top of dodge gate is articulated through fixed rotating shaft and the coal breakage outer wall above the through-hole; a coal receiving box is arranged below the through hole, and one end of the coal receiving box is hinged with the outer wall of the coal dropping pipe; the other end of the coal receiving box is connected with a pull rope of a pull rope switch, and the pull rope switch is used for controlling the stopping of the belt conveyor. The utility model aims to overcome current belt feeder prevent stifled coal protection device action sensitivity not enough, easily take place to refuse to move or the not enough of malfunction, provide a coal conveyor belt machine prevents stifled coal protection device, not only the reliability is high, and is convenient for maintain and clear up the coal breakage.

Description

Coal blockage prevention protection device for coal conveying belt conveyor

Technical Field

The utility model belongs to the technical field of prevent stifled coal protection device, more specifically say, relate to a coal conveyor belt machine prevents stifled coal protection device.

Background

A belt conveyor is a machine for continuously conveying materials by friction drive, and mainly comprises a frame, a conveying belt, a carrier roller, a tensioning device, a transmission device and the like. The material conveying device can form a material conveying flow from an initial feeding point to a final discharging point on a certain conveying line, can convey broken materials and finished articles, and can be matched with the requirements of technological processes in the production flows of various industrial enterprises besides pure material conveying to form a rhythmic flow production conveying line.

The belt conveyor has the advantages of strong conveying capacity, long conveying distance, simple structure and easy maintenance, can conveniently carry out programmed control and automatic operation, and is widely applied to industries such as metallurgy, machinery, chemical engineering, power plants and the like. The conventional belt conveyor anti-blocking coal protection device is easy to cause the phenomena of signal false sending, protection action rejection and the like when the coal conveyed by the belt conveyor has more solid impurity content or higher viscosity, greatly influences the reliable use of an anti-blocking coal switch and further influences the safe operation of the belt conveyor. Therefore, it is very important to design a belt conveyor coal blockage prevention protection device with sensitive action and reliable protection.

For the structural improvement of the coal blockage protection device, related technical schemes are disclosed, such as patent application numbers: 2016205767438, filing date: in 2016, 6 months and 16 days, the invention and creation names are: coal conveyor is with preventing chute blockage protection device, including the belt feeder, install the coal breakage pipe at this belt feeder output and be used for controlling the stay cord switch of belt feeder operation, the stay cord switch is including being located the outside stay cord line that is used for controlling this stay cord switch and opens and shuts of coal breakage pipe, the device still includes one and installs the coal receiving fill that is used for holding dress to spill over raw coal in the below that coal breakage pipe is located belt feeder one side, it links to each other with the stay cord line through a lever drive mechanism to connect the coal receiving fill, should connect the coal receiving fill to hold to move down and stop transporting through lever drive mechanism and stay cord line drive stay cord switch action control belt feeder after spilling over raw coal. There is still room for further optimization of this approach.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

The utility model aims to overcome current belt feeder prevent stifled coal protection device action sensitivity not enough, easily take place to refuse to move or the not enough of malfunction, provide a coal conveyor belt machine prevents stifled coal protection device, not only the reliability is high, and is convenient for maintain and clear up the coal breakage.

2. Technical scheme

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model discloses a coal conveyor is with preventing chute blockage protection device, including dodge gate, coal receiving box and stay cord switch, set up a through-hole on the coal breakage outer wall, the dodge gate covers in the through-hole outside, the top of dodge gate is articulated through fixed rotating shaft and the coal breakage outer wall above the through-hole; a coal receiving box is arranged below the through hole, and one end of the coal receiving box is hinged with the outer wall of the coal dropping pipe; the other end of the coal receiving box is connected with a pull rope of a pull rope switch, and the pull rope switch is used for controlling the stopping of the belt conveyor.

As a further improvement, the side wall of the coal receiving box on one side hinged to the outer wall of the coal dropping pipe is a laminating inner wall, the side wall of the coal receiving box on one side opposite to the laminating inner wall is a connecting side wall, and the connecting side wall is connected with the pull switch through a pull line.

As a further improvement of the utility model, the center of the connecting side wall is provided with a hook, and the opening direction of the hook faces to the outer side of the connecting side wall; one end of the stay cord is connected with the hook, a pulley is further arranged on the outer wall of the coal dropping pipe, the other end of the stay cord penetrates through the pulley to be connected with the stay cord switch, and the position of the pulley is higher than that of the coal receiving box.

As a further improvement, the both ends of laminating inner wall and connection lateral wall all link to each other through keeping out the lateral wall, and two distances of keeping out between the lateral wall are greater than the through-hole is at the ascending maximum distance of width direction.

As a further improvement, the baffle that connects coal box bottom portion to be used for accepting the coal breakage is the bottom baffle, and the ascending both sides of bottom baffle width direction are provided with the draw runner along length direction, and two keep out the lateral wall bottom and be provided with along length direction to the inboard relatively and with draw runner matched with guide rail groove, and the both sides of bottom baffle correspond to imbed this guide rail inslot, and the length of bottom baffle is greater than and keeps out lateral wall length, and the outside of bottom baffle is provided with the handle.

As a further improvement, the baffle that connects coal box bottom portion to be used for accepting the coal breakage is the bottom baffle, and the ascending both sides of bottom baffle length direction are provided with the draw runner along width direction, and laminate the inner wall and connect the lateral wall bottom and be provided with respectively to the inboard along length direction with draw runner guide rail groove that cooperatees, and the both sides correspondence of bottom baffle imbeds this guide rail inslot, and the width of bottom baffle is greater than and connects lateral wall length, and the outside of bottom baffle is provided with the handle.

As a further improvement, the coal receiving box is provided with a material guide funnel below, and the opening of the material guide funnel is gradually reduced from top to bottom.

As a further improvement, the distance between the inner wall of the laminating and the connecting side wall is greater than the height of the movable door along the height direction of the outer wall of the coal dropping pipe.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a coal conveyor is with preventing chute blockage protection device connects the one end of coal box and coal breakage outside of tubes wall articulated, connects the other end of coal box and links to each other with the stay cord line of stay cord switch, and this stay cord switch is used for sending chute blockage signal to PLC control center, and then controls the outage of belt feeder. When the accumulated coal in the coal receiving box exceeds a certain weight, the coal receiving box can drive the pull rope to move downwards under the action of the gravity of the accumulated coal, so that the protection action of the pull rope switch is triggered, a coal blockage signal is sent to the PLC control center, and the belt conveyor is controlled to be stopped emergently. Staff can carry out corresponding processing according to the chute blockage signal on the PLC, be convenient for real-time supervision and in time clear up the chute blockage, avoid taking place the belt feeder and take place circumstances such as jam fracture, improved the life of belt feeder, ensured on-the-spot safety in production. Whole chute blockage protection device installs in the coal breakage intraductal portion, does not receive the coal deposit influence in the coal breakage pipe, can accurate action during the chute blockage, is convenient for simultaneously daily operation maintenance, maintenance and on-line test.

(2) The utility model discloses a coal conveyor belt is with preventing chute blockage protection device, connect the lateral wall that connects one side with the coal breakage outer wall articulated on the coal box for laminating the inner wall, connect one side lateral wall relative with the laminating inner wall on the coal box for connecting the lateral wall, should connect the lateral wall and link to each other with the stay cord switch through the stay cord, the outside of lateral wall is connected to couple opening direction orientation, the one end of stay cord links to each other with the couple, because couple opening direction is towards the outside, when long-pending coal in the coal box that connects exceeds certain weight, the coal box that connects drives the stay cord line and takes place the displacement down, the stay cord line is difficult to drop from the couple, this prevents chute blockage protection device's stability has been ensured, the reliability of protection action has further been improved.

(3) The utility model discloses a coal conveyor belt is with preventing chute blockage protection device still is provided with the pulley on the coal breakage pipe outer wall, and the other end of stay cord line passes the pulley and links to each other with the stay cord switch, and the position of pulley is higher than the position that connects the coal box, is convenient for pull up from the top application of force and connects the coal box, and the design of pulley has reduced the wearing and tearing and the frictional resistance of stay cord line, has improved the sensitivity of protection action.

(4) The utility model discloses a coal conveyor belt is with preventing chute blockage protection device, the both ends of laminating inner wall and connection lateral wall all link to each other through keeping out the lateral wall, and two distances of keeping out between the lateral wall are greater than the maximum distance of through-hole on the width direction, and the long-pending coal that conveniently spills over the through-hole of top is held completely, and the long-pending coal that prevents to spill over falls subaerial, pollutes the operational environment in workshop, and convenient the clearance.

Drawings

FIG. 1 is a schematic structural view of an anti-blocking protection device for a coal conveyor belt of the present invention;

FIG. 2 is a schematic structural view of the coal receiving box of the present invention;

fig. 3 is a schematic structural view of a material guide funnel of the present invention;

FIG. 4 is a schematic structural view of the movable door of the coal chute in the normal coal-dropping state of the utility model;

fig. 5 is a schematic structural view of the movable door in the coal blocking state of the middle coal chute of the present invention.

The reference numerals in the schematic drawings illustrate:

100. a belt conveyor; 200. the outer wall of the coal dropping pipe; 210. a movable door; 220. fixing the rotating shaft; 230. a coal receiving box; 231. attaching the inner wall; 232. connecting the side walls; 233. a resisting side wall; 234. a bottom baffle; 240. a pulley; 250. a material guide hopper; 300. a pull-cord switch; 310. and pulling the rope line.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

With reference to fig. 1-5, the coal conveyor belt of this embodiment is with preventing coal blockage protection device, including dodge gate 210, connect coal box 230 and stay cord switch 300, a through-hole has been seted up on the coal breakage pipe outer wall 200 of belt feeder 100 head top, dodge gate 210 covers in this through-hole outside, and dodge gate 210 can cover the through-hole completely, prevent that the coal in the coal breakage pipe from overflowing from the through-hole under the state of normal not coal blockage, avoid causing environmental pollution and wasting of resources, further prevent that the coal breakage accumulation from leading to triggering protection device malfunction. As shown in fig. 4, in this embodiment, the top of the movable door 210 is hinged to the outer wall 200 of the coal chute above the through hole through a fixed rotating shaft 220, specifically, the outer wall 200 of the coal chute above the through hole is provided with the fixed rotating shaft 220, and two ends of the movable door 210 are provided with sleeves matched with the fixed rotating shaft 220, wherein the sleeves can rotate around the fixed rotating shaft 220, that is, the movable door 210 can swing outwards around the fixed rotating shaft 220. Referring to fig. 4 and 5, when coal is normally dropped in the coal dropping pipe, the movable door 210 naturally hangs down to block the through hole; when coal blockage occurs in the coal dropping pipe, the movable door 210 swings towards the outer side of the coal dropping pipe under the thrust action of accumulated coal in the coal dropping pipe, and the accumulated coal overflows outwards from the through hole. As shown in fig. 1, a coal receiving box 230 is disposed below the through hole in this embodiment, and the coal receiving box 230 is used for receiving the accumulated coal overflowing from the through hole, so as to avoid polluting the field operation environment and facilitate recycling of the overflowing accumulated coal.

In this embodiment, one end of the coal receiving box 230 is hinged to the outer wall 200 of the coal dropping pipe, specifically, in this embodiment, the bottom of one end of the coal receiving box 230 is provided with a rotating shaft, the outer side of the outer wall 200 of the coal dropping pipe is provided with a sleeve matched with the rotating shaft, and the rotating shaft can rotate in the sleeve, that is, the coal receiving box 230 can rotate downwards around the rotating shaft; the other end of the coal receiving box 230 is connected with a pull rope 310 of a pull rope switch 300, and the pull rope switch 300 is used for sending a coal blockage signal to a PLC control center so as to control the stopping of the belt conveyor 100. Specifically, the pull switch 300 in this embodiment is a pull switch 300 that is generally used in the industry, and when the accumulated coal in the coal receiving box 230 exceeds a certain weight, the coal receiving box 230 drives the pull line 310 to displace downward under the action of gravity of the accumulated coal, so as to trigger the protection action of the pull switch 300, send a coal blockage signal to the PLC control center, and further control the belt conveyor 100 to stop in an emergency. Staff can carry out corresponding processing according to the chute blockage signal on the PLC, be convenient for real-time supervision and in time clear up the chute blockage, avoid taking place the circumstances such as belt feeder 100 emergence jam fracture, improved belt feeder 100's life, ensured on-the-spot safety in production. Whole chute blockage protection device installs in the coal breakage intraductal portion, does not receive the coal deposit influence in the coal breakage pipe, can accurate action during the chute blockage, is convenient for simultaneously daily operation maintenance, maintenance and on-line test.

As shown in fig. 2, in this embodiment, a side wall of the coal receiving box 230 hinged to the outer wall 200 of the coal chute is a fitting inner wall 231, a side wall of the coal receiving box 230 opposite to the fitting inner wall 231 is a connecting side wall 232, and the connecting side wall 232 is connected to the pull switch 300 through a pull cord 310. Specifically, in the present embodiment, a hook (not shown) is disposed on the center of the connecting sidewall 232, the opening direction of the hook faces the outer side of the connecting sidewall 232, the center is the center of the connecting sidewall 232 along the width direction, and the width direction is the direction from the front to the back in the orientation shown in fig. 2. One end of the stay cord 310 is connected with the hook, and because the opening direction of the hook faces to the outside, when the accumulated coal in the coal receiving box 230 exceeds a certain weight, the coal receiving box 230 drives the stay cord 310 to move downwards, and the stay cord 310 is not easy to fall off from the hook, so that the stability of the anti-blocking coal protection device is ensured, and the reliability of protection action is further improved. In this embodiment, the outer wall 200 of the coal dropping pipe is further provided with a pulley 240, the other end of the pull rope 310 passes through the pulley 240 to be connected with the pull rope switch 300, and the position of the pulley 240 is higher than that of the coal receiving box 230, so that the coal receiving box 230 is pulled up by applying force from above, and due to the design of the pulley 240, the abrasion and the frictional resistance of the pull rope 310 are reduced, and the sensitivity of protection action is improved. When the accumulated coal in the coal receiving box 230 reaches a certain weight, the coal receiving box 230 inclines downwards along the rotating shaft attached to the bottom of the inner wall 231, so that the pull rope wire 310 is driven to move downwards, the pull rope switch 300 is further driven to trigger a protection action, a coal blockage signal is sent to the PLC, and the belt conveyor 100 is further controlled to be stopped emergently.

As shown in fig. 1 and 2, the two ends of the inner wall 231 and the connecting side wall 232 are connected through the retaining side walls 233 in this embodiment, and the distance between the two retaining side walls 233 is greater than the maximum distance of the through hole in the width direction, so that the accumulated coal overflowing from the through hole above is conveniently and completely contained, the overflow coal is prevented from falling on the ground, the working environment of a workshop is polluted, and the cleaning is convenient.

As shown in fig. 2, in this embodiment, the baffle for receiving the fallen coal at the bottom of the coal receiving box 230 is a bottom baffle 234, two sides of the bottom baffle 234 in the width direction are provided with slide bars (not shown in the figure) along the length direction, and opposite inner sides of the bottoms of the two resisting side walls 233 are provided with guide rail grooves (not shown in the figure) matched with the slide bars along the length direction, two sides of the bottom baffle 234 are correspondingly embedded into the guide rail grooves, and the slide bars and the guide rail grooves are matched for use, so that the bottom baffle 234 is convenient to detach, and the accumulated coal in the coal receiving box 230 is cleaned more easily; the length of the bottom baffle 234 is greater than the length of the retaining sidewall 233 (the length direction is from left to right in fig. 2), and a handle is disposed outside the bottom baffle 234 to facilitate the outward drawing of the bottom baffle 234 and the application of force.

Example 2

The structure of the coal blockage preventing protection device for the coal conveyor belt of the embodiment is basically the same as that of the embodiment 1, and the difference is that as shown in fig. 2, the baffle at the bottom of the coal receiving box 230 for receiving the falling coal is a bottom baffle 234, sliding strips (not shown in the figure) are arranged on two sides of the bottom baffle 234 in the length direction along the width direction, guide rail grooves (not shown in the figure) matched with the sliding strips are respectively arranged on the inner attaching wall 231 and the bottom of the connecting side wall 232 relatively to the inner side along the length direction, two sides of the bottom baffle 234 are correspondingly embedded into the guide rail grooves, and the sliding strips and the guide rail grooves are matched for use, so that the bottom baffle 234 is convenient to detach, and the coal accumulated in the coal receiving box 230 is cleaned more labor-saving; the width of the bottom baffle 234 is greater than the length of the connecting sidewall 232 (the width direction here is the direction from inside to outside in the orientation shown in fig. 2), and a handle is arranged outside the bottom baffle 234, so that the bottom baffle 234 can be conveniently drawn out, and the force can be conveniently applied.

As shown in fig. 3, a material guiding funnel 250 is disposed below the coal receiving box 230 in this embodiment, and an opening of the material guiding funnel 250 is gradually reduced from top to bottom. The direction is carried out when the long-pending coal in the convenient butt joint coal box 230 is cleared up, and can avoid influencing the site operation environment when clearing up.

As shown in fig. 1, the distance between the inner wall 231 and the connecting side wall 232 is greater than the height of the movable door 210 in the height direction along the outer wall 200 of the coal dropping pipe in this embodiment, so that the accumulated coal overflowing from the upper through hole can be conveniently and completely contained, and the environmental pollution of a workshop can be avoided.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a coal conveyor belt machine prevents chute blockage protection device which characterized in that: the coal dropping pipe comprises a movable door (210), a coal receiving box (230) and a pull rope switch (300), wherein a through hole is formed in the outer wall (200) of the coal dropping pipe, the movable door (210) covers the outer side of the through hole, and the top of the movable door (210) is hinged with the outer wall (200) of the coal dropping pipe above the through hole through a fixed rotating shaft (220); a coal receiving box (230) is arranged below the through hole, and one end of the coal receiving box (230) is hinged with the outer wall (200) of the coal dropping pipe; the other end of the coal receiving box (230) is connected with a pull rope wire (310) of a pull rope switch (300), and the pull rope switch (300) is used for controlling the shutdown of the belt conveyor (100).

2. The coal blockage preventing protection device for the coal conveyor belt according to claim 1, which is characterized in that: the side wall of one side of the coal receiving box (230) hinged to the outer wall (200) of the coal dropping pipe is a joint inner wall (231), the side wall of one side of the coal receiving box (230) opposite to the joint inner wall (231) is a connection side wall (232), and the connection side wall (232) is connected with the pull rope switch (300) through a pull rope wire (310).

3. The coal blockage preventing protection device for the coal conveyor belt according to claim 2, which is characterized in that: the center of the connecting side wall (232) is provided with a hook, and the opening direction of the hook faces to the outer side of the connecting side wall (232); one end of a stay cord (310) is connected with the hook, a pulley (240) is further arranged on the outer wall (200) of the coal dropping pipe, the other end of the stay cord (310) penetrates through the pulley (240) to be connected with a stay cord switch (300), and the position of the pulley (240) is higher than that of the coal receiving box (230).

4. The coal blockage preventing protection device for the coal conveyor belt according to claim 2, which is characterized in that: the two end parts of the attaching inner wall (231) and the connecting side wall (232) are connected through the resisting side walls (233), and the distance between the two resisting side walls (233) is larger than the maximum distance of the through hole in the width direction.

5. The coal blockage preventing protection device for the coal conveyor belt according to claim 4, wherein the coal blockage preventing protection device comprises: the baffle that connects coal box (230) bottom to be used for accepting the coal breakage is bottom baffle (234), and the ascending both sides of bottom baffle (234) width direction are provided with the draw runner along length direction, and two keep out lateral wall (233) bottoms and be provided with the guide rail groove with draw runner matched with along length direction to inboard relatively, and the both sides of bottom baffle (234) are corresponding to imbed this guide rail inslot, and the length of bottom baffle (234) is greater than keep out lateral wall (233) length, and the outside of bottom baffle (234) is provided with the handle.

6. The coal blockage preventing protection device for the coal conveyor belt according to claim 4, wherein the coal blockage preventing protection device comprises: connect baffle that coal box (230) bottom is used for accepting the coal breakage to be bottom baffle (234), the ascending both sides of bottom baffle (234) length direction are provided with the draw runner along width direction, and laminating inner wall (231) and connect lateral wall (232) bottom and be provided with respectively along length direction to the inboard relatively and cooperate with the draw runner groove, the both sides of bottom baffle (234) correspond to imbed this guide rail inslot, the width of bottom baffle (234) is greater than and connects lateral wall (232) length, and the outside of bottom baffle (234) is provided with the handle.

7. The coal blockage preventing protection device for the coal conveyor belt according to claim 5 or 6, wherein: a material guide funnel (250) is arranged below the coal receiving box (230), and the opening of the material guide funnel (250) is gradually reduced from top to bottom.

8. The coal blockage preventing protection device for the coal conveyor belt according to claim 2, which is characterized in that: the distance between the fit inner wall (231) and the connecting side wall (232) is larger than the height of the movable door (210) in the height direction of the outer wall (200) of the coal dropping pipe.