CN214242418U - Belt coal breakage pipe blocks up detection device with adjustable - Google Patents
Belt coal breakage pipe blocks up detection device with adjustable Download PDFInfo
- Publication number
- CN214242418U CN214242418U CN202022532888.7U CN202022532888U CN214242418U CN 214242418 U CN214242418 U CN 214242418U CN 202022532888 U CN202022532888 U CN 202022532888U CN 214242418 U CN214242418 U CN 214242418U
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- Prior art keywords
- side door
- coal
- pipe
- proximity switch
- detection device
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- 239000003245 coal Substances 0.000 title claims abstract description 76
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 56
- 238000011084 recovery Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 230000004224 protection Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The utility model discloses an adjustable belt coal breakage pipe blockage detection device, which relates to the technical field of coal conveying detection of thermal power plants, and is characterized in that a proximity switch is moved from the lower part of a side door opening to a position close to the upper part of the central part of the side door, so that materials falling from the side door opening cannot be hit on the proximity switch, the service life of the proximity switch is prolonged, and the reliability of signal detection is improved; the side door passes through the tube wall connection of elastic tension subassembly and coal breakage pipe, and the initial elastic tension of elastic tension subassembly is adjustable, therefore the staff can be in the actual work process, according to material jam and unblocked critical point distribution condition, adjust elastic tension's initial elastic tension to suitable, make under a lot of circumstances, the material that blocks up a short period of time under the circumstances that gravity adds up, from the automatic unblocked dropping of coal breakage pipe material export, reduce the shut down number of times, improve defeated coal efficiency.
Description
Technical Field
The utility model relates to a thermal power factory coal handling detects technical field, particularly, relates to a belt coal breakage pipe blocks up detection device with adjustable.
Background
When a blanking hopper at the head of a coal conveying belt machine of a thermal power plant is blocked, a coal blockage signal is sent in time to stop the belt running, so that the method is one of important protections of a belt conveyor of a coal conveying system, and plays an important role in preventing the belt from being broken and the motor from being overloaded due to the fact that a superior belt is pressed to be dead by accumulated coal in a coal falling pipe. Firstly, the blanking hopper blockage detection device is a rotation-blocking type coal blockage signal and is installed close to the pipe wall of the coal dropping pipe, a rotating blade of the device extends into the coal dropping pipe, and when the rotating blade is submerged by accumulated coal to cause the rotating blade to stop rotating, the coal blockage device sends out a blanking hopper blockage signal to stop the belt from running. Because the rotating blade is arranged in the coal dropping pipe, the rotating blade is easy to damage when the dropped coal is repeatedly impacted or a large coal block falls down, and the rotation-resistant type coal blockage detection device is transformed into a door-type structure at the back. Be provided with a side door promptly at the blanking hopper lateral wall, the upper portion of side door articulates in the outside of blanking hopper, and when the material took place to block up, the material can give a pressure of blanking hopper lateral wall, outwards pushes the pivoted side door of funnel lateral wall, and the material falls out from the lateral wall gate, when the side door that rotates touched proximity switch, and proximity switch outwards sent the blanking hopper and blockked up alarm signal, and PLC control system sends the belt stop command, stops the belt operation. But the detection structure still has defects: the materials can be smoothly dropped out again under the action of proper gravity after being blocked by a certain amount, and because the bearing capacity of the side door is fixed and cannot be adjusted, workers cannot adjust the bearing capacity of the side door, so that the operation of not opening the side door is realized under the condition, and the coal conveying efficiency is reduced; in addition, the proximity switch is installed at a position below the side gate opening, and the material falling from the side gate opening may hit the proximity switch, possibly causing damage to the proximity switch, and reducing the detection accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a belt coal breakage pipe blocks up detection device with adjustable, it can alleviate above-mentioned problem.
In order to alleviate the above-mentioned problem, the utility model discloses the technical scheme who takes as follows:
an adjustable belt coal dropping pipe blockage detection device comprises a coal dropping pipe and a proximity switch, wherein a side door is arranged on a side inclined wall of the coal dropping pipe, a hinged part of the side door is positioned on the upper edge part of the side door, and the side door is provided with an arc-shaped steel plate used for triggering the proximity switch to generate a blockage induction signal;
the proximity switch and the arc-shaped steel plate are both positioned at the upper position of the central part of the side door, and when the side door is opened, the arc-shaped steel plate is close to the proximity switch and enables the proximity switch to generate a blocking induction signal;
the lower position of the central part of the side door is connected with the pipe wall of the coal dropping pipe through an elastic tension assembly, the initial elastic tension of the elastic tension assembly is adjustable, and when the side door is opened, the elastic tension of the elastic tension assembly is increased.
The utility model discloses an in a preferred embodiment, the coal breakage pipe is located the pipe wall welding of side door top has the detection installing support, proximity switch sets up in this detection installing support.
In a preferred embodiment of the present invention, a material recovery guide plate is obliquely disposed outside the inclined wall of the coal chute; when the side door is opened, a material anti-blocking outlet is formed between the side door and the pipe wall of the coal dropping pipe, and the vertical projection of the material anti-blocking outlet is positioned on the material recovery guide plate; and a material recovery port which is inclined downwards is formed between the lower edge part of the material recovery guide plate and the inclined wall of the coal dropping pipe, and an extension line of the material recovery port is intersected with an extension line of a material outlet of the coal dropping pipe.
The utility model discloses an in a preferred embodiment, the elastic tension subassembly includes extension spring, bolt and an internal thread section of thick bamboo, an internal thread section of thick bamboo slope is fixed in the coal breakage pipe, bolt threaded connection runs through an internal thread section of thick bamboo, the extension spring is located the oblique below of bolt, and its one end with the connection can be dismantled to the end of bolt, the other end with the connection can be dismantled to the side door inside wall.
The utility model discloses an in a preferred embodiment, the vertical welding of the interior skew wall of coal breakage pipe has the pulling force subassembly support, the internal thread section of thick bamboo welds in the upper end of this pulling force subassembly support.
In a preferred embodiment of the present invention, the tension spring is rotatably connected to the end of the bolt.
The utility model discloses an in a preferred embodiment, the end of bolt is provided with the hanging hole, the inside wall of side door is provided with the link, the both ends of extension spring all are provided with the couple, both ends the couple articulate respectively in hanging hole and link.
Compared with the prior art, the beneficial effects of the utility model are that: the proximity switch is moved from the lower part of the side door opening to the position close to the center part of the side door, so that materials falling out of the side door opening cannot hit the proximity switch, the service life of the proximity switch is prolonged, and the reliability of signal detection is improved; the side door passes through the tube wall connection of elastic tension subassembly and coal breakage pipe, and the initial elastic tension of elastic tension subassembly is adjustable, therefore the staff can be in the actual work process, according to material jam and unblocked critical point distribution condition, adjust elastic tension's initial elastic tension to suitable, make under a lot of circumstances, the material that blocks up a short period of time under the circumstances that gravity adds up, from the automatic unblocked dropping of coal breakage pipe material export, reduce the shut down number of times, improve defeated coal efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the adjustable belt coal chute blockage detection device of the present invention when the side door is in a closed state;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of the adjustable belt coal chute blockage detection device of the present invention when the side door is in an open state;
in the figure: 1-coal dropping pipe, 2-side door, 3-detection mounting bracket, 4-proximity switch, 5-arc steel plate, 6-material recovery guide plate, 7-material recovery port, 8-coal dropping pipe material outlet, 9-material, 10-tension assembly bracket, 11-bolt, 12-internal thread cylinder, 13-tension spring and 14-material anti-blocking outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the utility model discloses a belt coal dropping pipe 1 blockage detection device, which comprises a coal dropping pipe 1 and a proximity switch 4, wherein a side inclined wall of the coal dropping pipe 1 is provided with a side door 2, a hinged part of the side door 2 is positioned at the upper edge part of the side door, and the side door 2 is provided with an arc-shaped steel plate 5 for triggering the proximity switch 4 to generate a blockage induction signal;
the proximity switch 4 and the arc-shaped steel plate 5 are both positioned at the upper position of the central part of the side door 2, when the side door 2 is opened, the arc-shaped steel plate 5 is close to the proximity switch 4, and the proximity switch 4 generates a blocking induction signal;
the lower position of the central part of the side door 2 is connected with the pipe wall of the coal dropping pipe 1 through an elastic tension assembly, the initial elastic tension of the elastic tension assembly is adjustable, and when the side door 2 is opened, the elastic tension of the elastic tension assembly is increased.
As shown in FIG. 1, when the material is smoothly dropped from the material outlet 8 of the coal dropping pipe, the side door 2 is kept closed under the pulling force of the elastic pulling force assembly. When the material 9 in the coal dropping pipe 1 is blocked sufficiently, a certain gravity can be applied to the side door 2, and when the side door 2 is opened, part of the material 9 falls out from the side door, and the arc-shaped steel plate 5 is close to the proximity switch 4, and the proximity switch 4 generates a material blocking signal. The staff can be according to the actual conditions of 9 whereabouts of material, adjusts the initial elastic tension of elastic tension subassembly to suitable state, makes the material apply when thrust on side door 2 is less than this initial elastic tension then, and side door 2 all is in closed condition, is in open condition otherwise.
The utility model discloses an optional embodiment, the pipe wall welding that coal breakage pipe 1 is located side door 2 top has detection installing support 3, and proximity switch 4 sets up in this detection installing support 3.
In an optional embodiment of the utility model, a material recovery guide plate 6 is obliquely arranged outside the inclined wall of the coal dropping pipe 1; when the side door 2 is opened, a material anti-blocking outlet 14 is formed between the side door 2 and the pipe wall of the coal dropping pipe 1, and the vertical projection of the material anti-blocking outlet 14 is positioned on the material recovery guide plate 6; a material recovery port 7 which is inclined downwards is formed between the lower edge part of the material recovery guide plate 6 and the inclined wall of the coal dropping pipe 1, and the extension line of the material recovery port 7 is intersected with the extension line of the material outlet 8 of the coal dropping pipe.
After the coal dropping pipe material outlet 8 is blocked for a certain time, the side door 2 is opened to form a material anti-blocking outlet 14, the material falls out from the material anti-blocking outlet 14 to the material recovery guide plate 6, slides downwards and falls to the position below the coal dropping pipe material outlet 8 from the material recovery port 7.
In an optional embodiment of the utility model, as shown in fig. 2, the elastic tension assembly includes a tension spring 13, a bolt 11 and an internal thread cylinder 12, the internal thread cylinder 12 is obliquely fixed in the coal chute 1, the bolt 11 is connected through the internal thread cylinder 12, the tension spring 13 is located below the bolt 11, one end of the tension spring is detachably connected with the end of the bolt 11, and the other end is detachably connected with the inner side wall of the side door 2.
When the elastic tension assembly is adopted, the initial elastic tension adjusting process is as follows:
the tension spring 13 is separated from the bolt 11, then the bolt 11 is rotated, the relative position of the bolt 11 in the internal thread cylinder 12 is adjusted, and when the worker thinks the position is proper, the tension spring 13 is detachably connected with the bolt 11 again.
In an optional embodiment of the present invention, the tension assembly bracket 10 is vertically welded to the inner inclined wall of the coal dropping pipe 1, and the internal thread cylinder 12 is welded to the upper end of the tension assembly bracket 10.
In an optional embodiment of the present invention, the extension spring 13 is rotatably connected to the end of the bolt 11, and the relative position of the bolt 11 in the internal thread cylinder 12 can be adjusted without separating the extension spring 13 from the bolt 11.
The utility model discloses an optional embodiment, the end of bolt 11 is provided with the hanging hole, and the inside wall of side door 2 is provided with the link, and the both ends of extension spring 13 all are provided with the couple, and the couple at both ends articulates respectively in hanging hole and link. This can dismantle connected mode for between extension spring 13 and bolt 11 and side door 2, the dismouting that the homoenergetic is very convenient.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An adjustable belt coal dropping pipe blockage detection device comprises a coal dropping pipe and a proximity switch, wherein a side door is arranged on a side inclined wall of the coal dropping pipe, a hinged part of the side door is positioned on the upper edge part of the side door, the side door is provided with an arc-shaped steel plate used for triggering the proximity switch to generate a blockage induction signal, and the adjustable belt coal dropping pipe blockage detection device is characterized in that,
the proximity switch and the arc-shaped steel plate are both positioned at the upper position of the central part of the side door, and when the side door is opened, the arc-shaped steel plate is close to the proximity switch and enables the proximity switch to generate a blocking induction signal;
the lower position of the central part of the side door is connected with the pipe wall of the coal dropping pipe through an elastic tension assembly, the initial elastic tension of the elastic tension assembly is adjustable, and when the side door is opened, the elastic tension of the elastic tension assembly is increased.
2. The adjustable belt coal chute blockage detection device as recited in claim 1, wherein a detection mounting bracket is welded to a pipe wall of the coal chute above the side door, and the proximity switch is arranged on the detection mounting bracket.
3. The adjustable belt coal chute blockage detection device as recited in claim 1, wherein a material recovery guide plate is obliquely arranged outside the oblique wall of the coal chute; when the side door is opened, a material anti-blocking outlet is formed between the side door and the pipe wall of the coal dropping pipe, and the vertical projection of the material anti-blocking outlet is positioned on the material recovery guide plate; and a material recovery port which is inclined downwards is formed between the lower edge part of the material recovery guide plate and the inclined wall of the coal dropping pipe, and an extension line of the material recovery port is intersected with an extension line of a material outlet of the coal dropping pipe.
4. The adjustable belt coal breakage pipe blockage detection device as recited in claim 1, wherein the elastic tension assembly comprises a tension spring, a bolt and an internal thread cylinder, the internal thread cylinder is obliquely fixed in the coal breakage pipe, the bolt is in threaded connection and penetrates through the internal thread cylinder, the tension spring is located obliquely below the bolt, one end of the tension spring is detachably connected with the end of the bolt, and the other end of the tension spring is detachably connected with the inner side wall of the side door.
5. The adjustable belt coal drop pipe blockage detection device as recited in claim 4, wherein a tension assembly bracket is vertically welded to the inner inclined wall of the coal drop pipe, and the internal thread cylinder is welded to the upper end of the tension assembly bracket.
6. The adjustable belt coal chute blockage detection device as recited in claim 4, wherein the tension spring is rotatably connected to the end of the bolt.
7. The adjustable belt coal breakage pipe blockage detection device as recited in claim 4, wherein a hanging hole is formed in an end of the bolt, a hanging ring is arranged on the inner side wall of the side door, hooks are arranged at two ends of the tension spring, and the hooks at the two ends are respectively hung in the hanging hole and the hanging ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022532888.7U CN214242418U (en) | 2020-11-05 | 2020-11-05 | Belt coal breakage pipe blocks up detection device with adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022532888.7U CN214242418U (en) | 2020-11-05 | 2020-11-05 | Belt coal breakage pipe blocks up detection device with adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214242418U true CN214242418U (en) | 2021-09-21 |
Family
ID=77732548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022532888.7U Expired - Fee Related CN214242418U (en) | 2020-11-05 | 2020-11-05 | Belt coal breakage pipe blocks up detection device with adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214242418U (en) |
-
2020
- 2020-11-05 CN CN202022532888.7U patent/CN214242418U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |