Blockage detection device based on coal feeder sweeping chain device

Abstract

The utility model provides a blockage detection device based on a coal feeder cleaning chain device, which comprises a machine body, a laser distance measuring sensor arranged in the machine body, two mounting grooves arranged in the machine body, filter screens arranged in the two mounting grooves, a rotating groove arranged in the machine body, a rotating block slidably connected in the rotating groove, and a rotating shaft arranged in the rotating block. And a rotating rod is in threaded connection with the interior of the rotating block. According to the blocking detection device based on the coal feeder sweeping chain device, the laser distance measuring sensor is protected through the machine body, erosion of coal ash to the laser distance measuring sensor is reduced, meanwhile, the two cleaning pieces are made to move towards the two sides respectively in cooperation with the rotating groove, the rotating block, the rotating rod, the rotating motor, the moving groove and the moving block, and the blocking detection efficiency is improved. The surface of the laser distance measuring sensor is cleaned, so that coal ash is prevented from accumulating on the surface of the laser distance measuring sensor to affect laser pulse emission of the laser distance measuring sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coal feeder, especially to a coal feeder cleaning chain device blockage detection device. BACKGROUND

[0002] The coal feeder is used for accurately adjusting the coal supply amount of the coal mill, and can accurately adjust the coal supply amount of the coal mill according to the load requirement. It is arranged between the raw coal hopper and the coal mill. In the direct-fired pulverizing system, the coal supply amount is directly adapted to the boiler load. The coal feeder has various types, and has two types of volumetric and gravity types according to structural features and working principles.

[0003] The coal feeder cleaning chain is transformed from the original cylindrical chain scraper to a rack type chain scraper. The cleaning chain has a power of 1.5KW and is stopped after running for 5 minutes. Each coal feeder is equipped with a cleaning chain. Influenced by coal particles, wear of the internal lining of the coal mill, and broken coal hanging on the wall of the raw coal bin, a laser ranging sensor is installed below the chain. When the laser ranging sensor emits a laser pulse to the chain and the coal ash on the chain, the laser is reflected back. The photoelectric detector in the sensor receives the reflected laser pulse, and the thickness of the coal ash is calculated.

[0004] However, when the coal feeder is used, coal ash will fall and adhere to the surface of the laser ranging sensor, thereby blocking the laser ranging sensor from emitting a laser pulse to the chain, reducing the accuracy of the data and affecting the use of the laser ranging sensor.

[0005] Therefore, it is necessary to provide a coal feeder cleaning chain device blockage detection device to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a coal feeder cleaning chain device blockage detection device, solves the problem that the coal ash of the chain falls and adheres to the surface of the laser ranging sensor, thereby blocking the laser ranging sensor from emitting a laser pulse to the chain.

[0007] To solve the above technical problems, the utility model provides a coal feeder cleaning chain device blockage detection device, which comprises:

[0008] The machine body is internally provided with a laser ranging sensor, and two installation grooves are formed in the inside of the machine body, and a filter screen is arranged in the inside of each installation groove;

[0009] The rotating groove is arranged in the inside of the machine body, a rotating block is slidably connected in the inside of the rotating groove, a rotating rod is threadedly connected in the inside of the rotating block, one end of the rotating rod is provided with a rotating motor, and a cleaning piece is fixedly installed on one side of the rotating block.

[0010] A moving groove is arranged inside the body, and a moving block is slidingly connected inside the moving groove.

[0011] Preferably, two ends of the cleaning member are fixedly connected to the rotating block and one side of the moving block respectively.

[0012] Preferably, two ends of the cleaning member are fixedly connected to the rotating block and one side of the moving block respectively.

[0013] Preferably, two ends of the cleaning member are fixedly connected to the rotating block and one side of the moving block respectively.

[0014] Preferably, two ends of the cleaning member are fixedly connected to the rotating block and one side of the moving block respectively.

[0015] Preferably, two ends of the cleaning member are fixedly connected to the rotating block and one side of the moving block respectively.

[0016] Preferably, two ends of the cleaning member are fixedly connected to the rotating block and one side of the moving block respectively.

[0017] Compared with the related art, the coal feeder cleaning chain device blockage detection device provided by the utility model has the following beneficial effects:

[0018] The utility model provides a kind of based on the structure of the coal feeder cleaning chain device blockage detection device, by laser ranging sensor protection to machine, reduce the erosion of coal ash to laser ranging sensor, simultaneously cooperate with rotating groove, rotating block, rotating rod, rotating motor, moving groove and moving block, so that two cleaning members move to two sides respectively, the surface of laser ranging sensor is cleaned, to prevent coal ash accumulation on the surface of laser ranging sensor influence laser ranging sensor emits laser pulse. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic drawing of the first embodiment of the coal feeder cleaning chain device blockage detection device provided by the utility model;

[0020] Figure 2 It is the structure schematic drawing of the first embodiment of the coal feeder cleaning chain device blockage detection device provided by the utility model; Figure 1 The structure schematic drawing of rotating groove shown in the figure;

[0021] Figure 3 for Figure 1 The diagram shows the structure of the reset slot.

[0022] Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below;

[0023] Figure 5 for Figure 3 The enlarged schematic diagram of section B is shown below;

[0024] Figure 6 This is a schematic diagram of the second embodiment of the blockage detection device for a coal feeder cleaning chain device provided by this utility model;

[0025] Figure 7 for Figure 6 The diagram shows the structure of the movable rod.

[0026] The following are the labels in the diagram: 1. Body, 2. Laser rangefinder sensor, 3. Rotating groove, 31. Rotating block, 32. Rotating rod, 33. Rotating motor, 34. Cleaning component, 4. Baffle, 5. Reset groove, 51. Reset block, 52. Reset spring, 53. Sealing plate, 6. Moving groove, 7. Moving block, 8. Mounting groove, 9. Filter screen, 10. Sliding groove, 11. Sliding block, 12. Return spring, 13. Moving rod, 14. Groove, 15. Sliding rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] First Embodiment

[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of the blockage detection device for a coal feeder cleaning chain device provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the rotating groove. Figure 3 for Figure 1 The diagram shows the structure of the reset slot.

[0030] Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 5 for Figure 3 The enlarged schematic diagram of section B is shown. A blockage detection device based on a coal feeder cleaning chain device includes:

[0031] The body 1 is internally provided with a laser ranging sensor 2, and two mounting grooves 8 are formed in the body 1, and a filter screen 9 is arranged in each of the two mounting grooves 8.

[0032] A rotating groove 3 is arranged in the body 1, a rotating block 31 is slidably connected in the rotating groove 3, a rotating rod 32 is threadedly connected in the rotating block 31, a rotating motor 33 is arranged at one end of the rotating rod 32, and a cleaning member 34 is fixedly installed on one side of the rotating block 31.

[0033] A moving groove 6 is arranged in the body 1, and a moving block 7 is slidably connected in the moving groove 6.

[0034] The filter screen 9 is used to prevent the coal ash from entering the body 1 and to dissipate heat in the body 1.

[0035] The rotating groove 3 is formed in the body 1, the rotating motor 33 is a servo motor, the rotating motor 33 is fixedly installed on one side of the body 1, and an output end is connected to one end of the rotating rod 32 through a shaft coupling, so as to drive the rotating rod 32 to rotate to one side after starting, and the other end of the rotating rod 32 is rotatably connected to one end of the inner wall of the rotating groove 3.

[0036] The rotating rod 32 is a threaded rod, and a threaded hole matched with the rotating rod 32 is formed in the rotating block 31.

[0037] The cleaning member 34 is a cleaning sponge or cleaning cotton, a moving frame is fixedly installed on the top of the cleaning member 34, and the moving frame is fixedly connected to one side of the rotating block 31 and the moving block 7.

[0038] The moving groove 6 is formed in the body 1, and the moving block 7 is slidably connected in the moving groove 6.

[0039] The coal feeder cleaning chain device checks the blockage of the chain through the laser ranging sensor 2, and checks the blockage of the chain through the remote manual start-stop device and the on-site manual turning device. The laser ranging sensor 2 is parallelly installed below the track of the cleaning chain of the coal feeder, four are installed in a single coal feeder, and the manual turning device is installed on the driving shaft of the cleaning chain according to the average installation of the chain running length. When the chain stops running, the ash accumulation height reaches 30 mm is detected, a blockage signal is sent, the monitoring personnel receives the blockage alarm and manually starts remotely, if the start fails, the remote switching to the prohibition of starting is immediately performed, the running personnel manually turns on-site, until the alarm signal disappears, the prohibition of starting is released, and the remote start is performed to clean the remaining ash under the cleaning chain.

[0040] The cleaning member 34 is fixedly connected to one side of the rotating block 31 and the moving block 7.

[0041] The both ends of the cleaning piece 34 are fixedly connected with the baffle 4, the inside of the machine body 1 is provided with a plurality of reset grooves 5, the inside of the plurality of reset grooves 5 is slidably connected with the reset block 51, the top of the plurality of reset blocks 51 and respectively located in the inside of the plurality of reset grooves 5 is provided with the reset spring 52, and the side of the plurality of reset blocks 51 is fixedly connected with the two sealing plates 53.

[0042] The inside of the two sealing plates 53 is provided with the clamping groove, so that the two sealing plates 53 are reset to seal the rotating groove 3 and the moving groove 6 after the cleaning piece 34 is reset into the inside of the clamping groove, thereby preventing the entry of coal ash, and the two baffles 4 seal the clamping groove.

[0043] The two baffles 4 are respectively fixedly connected to the bottom of the two ends of the cleaning piece 34.

[0044] The side of the plurality of reset blocks 51 is respectively fixedly connected to the both ends of the side of the two sealing plates 53.

[0045] When the cleaning piece 34 moves to one side, moves in the inside of the clamping groove in the sealing plate 53, thereby pushing the sealing plate 53 to move upwards, and when the sealing plate 53 moves upwards, drives the two reset blocks 51 to move upwards in the inside of the two reset grooves 5 while extruding the two reset springs 52, and when the cleaning piece 34 is reset into the inside of the clamping groove in the sealing plate 53, the two reset springs 52 push the two reset blocks 51 to move downwards in the inside of the two reset grooves 5 and reset.

[0046] The working principle of the coal feeder cleaning chain device blockage detection device provided by the utility model is as follows:

[0047] In use, the rotating motor 33 is started to drive the rotating rod 32 to rotate to one side, so that the rotating block 31 moves to one side on the surface of the rotating rod 32, and the cleaning piece 34 is moved to one side on the surface of the laser ranging sensor 2 by the rotating block 31, and the moving block 7 is moved to one side in the moving groove 6 when the cleaning piece 34 moves to one side, so that the cleaning piece 34 is moved to one side on the surface of the laser ranging sensor 2, and the surface of the laser ranging sensor 2 is cleaned.

[0048] Compared with the related art, the coal feeder cleaning chain device blockage detection device provided by the utility model has the following beneficial effects:

[0049] The utility model provides a kind of based on coal feeder cleaning chain device block detection device, by laser ranging sensor 2 is protected to machine body 1, reduce the erosion of coal ash to laser ranging sensor 2, simultaneously cooperate rotating groove 3, rotating block 31, rotating rod 32, rotating motor 33, moving groove 6 and moving block 7, so that two cleaning parts 34 respectively move to two sides, the surface of laser ranging sensor 2 is cleaned, to prevent coal ash accumulation on the surface of laser ranging sensor 2 influence laser ranging sensor 2 emits laser pulse.

[0050] Second embodiment

[0051] Please see Figure 6 And Figure 7 Based on the first embodiment of the application, a kind of based on coal feeder cleaning chain device block detection device is provided, and the second embodiment of the application proposes another kind of based on coal feeder cleaning chain device block detection device. Second embodiment is only the preferred mode of first embodiment, and the implementation of second embodiment will not affect the separate implementation of first embodiment.

[0052] Specifically, the second embodiment of the application provides a kind of based on coal feeder cleaning chain device block detection device, which is different from the first embodiment of the application. The cleaning part 34 is fixedly connected with two moving rods 13 on one side, a plurality of recesses 14 are formed in the interior of the two moving rods 13, and two sliding rods 15 are arranged in the interior of the plurality of recesses 14.

[0053] The two sides of the cleaning part 34 are fixedly connected with the moving rods 13, and a plurality of recesses 14 are formed in the interior of the moving rods 13. Four sliding rods 15 are slidingly connected in the interior of the moving rods 13, and one end of each of the four sliding rods 15 is fixedly connected to the top of the two filter screens 9.

[0054] One end of the sliding rod 15 is semicircular, and the recess 14 is a semicircular groove matched with one end of the sliding rod 15. When the moving rod 13 moves to one side, the sliding rod 15 can automatically move out of the recess 14.

[0055] The two sliding rods 15 are slidingly connected to the interior of the machine body 1, and one end of each of the two sliding rods 15 is fixedly connected to the top of the filter screen 9.

[0056] A plurality of sliding grooves 10 are formed in the interior of the machine body 1, a plurality of sliding blocks 11 are slidingly connected in the interior of the plurality of sliding grooves 10, and a restoring spring 12 is arranged on the top of each of the plurality of sliding blocks 11 and located in the interior of each of the plurality of sliding grooves 10.

[0057] One side of each of the plurality of sliding blocks 11 is fixedly connected to the two sides of the two filter screens 9.

[0058] The working principle of the blockage detection device based on the coal feeder cleaning chain device is as follows:

[0059] When the cleaning piece 34 moves to one side, the two moving rods 13 are driven to move to one side, and the two sliding rods 15 are moved out of the recesses 14, and the sliding rods 15 drive the filter screen 9 to be connected with the plurality of sliding blocks 11 to move downward in the plurality of sliding grooves 10, and the plurality of restoring springs 12 are extruded.

[0060] When the sliding rod 15 moves to the next recess 14 inside the moving rod 13, the plurality of sliding blocks 11 are pushed by the plurality of restoring springs 12 to move upward in the plurality of sliding grooves 10, so that the filter screen 9 is reset, and the above steps are repeated to make the filter screen 9 vibrate, clean the coal ash attached to the surface of the filter screen 9, and prevent the filter screen 9 from being blocked.

[0061] Compared with the related art, the blockage detection device based on the coal feeder cleaning chain device has the following beneficial effects:

[0062] The blockage detection device based on the coal feeder cleaning chain device is provided, and the moving rod 13 cooperates with the recess 14, the sliding rod 15, the sliding groove 10, the sliding block 11 and the restoring spring 12 to move the filter screen 9 up and down, clean the filter screen 9, and prevent the filter screen 9 from being blocked.

[0063] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A blockage detection device based on a coal feeder cleaning chain device, characterized in that, Include: Machine, the inside of machine is provided with laser ranging sensor, the inside of machine is provided with two installation slot, the inside of two installation slot is provided with filter screen; Rotary groove, the rotary groove is arranged in the inside of machine, the inside of rotary groove is slidably connected with rotary block, the inside of rotary block is threadedly connected with rotating rod, one end of rotating rod is provided with rotating motor, one side of rotary block is fixedly installed with cleaning element; The moving groove is arranged in the inside of machine, the inside of moving groove is slidably connected with moving block.

2. A device for detecting clogging of a cleaning chain device of a coal feeder according to claim 1, characterized in that, Both ends of the cleaning element are fixedly connected to one side of the moving block.

3. A device for detecting clogging of a cleaning chain device of a coal feeder according to claim 2, characterized in that, Both ends of the cleaning element are fixedly connected with baffle, the inside of machine is provided with a plurality of reset grooves, a plurality of reset grooves are slidably connected with reset block, a plurality of reset blocks are provided with reset spring on the top and inside of a plurality of reset grooves respectively, a plurality of reset blocks are fixedly connected with two sealing plates on one side.

4. The device according to claim 3, wherein The side of the cleaning element is fixedly connected with two moving rods, two moving rods are provided with a plurality of grooves, two sliding rods are arranged in a plurality of grooves.

5. The device for detecting the clogging of the cleaning chain device of the coal feeder according to claim 1, wherein Both ends of the cleaning element are fixedly connected to one side of the moving block.

6. A device for detecting clogging of a cleaning chain device of a coal feeder according to claim 5, characterized in that, The inside of machine is provided with a plurality of sliding grooves, a plurality of sliding grooves are slidably connected with sliding block, a plurality of sliding blocks are provided with recovery spring on the top and inside of a plurality of sliding grooves respectively.

7. A device for detecting blockage of a cleaning chain device of a coal feeder according to claim 6, characterized in that, ​

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