CN211412998U - Self-cleaning device of observation window and coal pulverizer - Google Patents
Self-cleaning device of observation window and coal pulverizer Download PDFInfo
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- CN211412998U CN211412998U CN201921638920.0U CN201921638920U CN211412998U CN 211412998 U CN211412998 U CN 211412998U CN 201921638920 U CN201921638920 U CN 201921638920U CN 211412998 U CN211412998 U CN 211412998U
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Abstract
The utility model discloses a self-cleaning device of an observation window, which comprises a purging mechanism, a purging pipe and a purging hole arranged on the purging pipe, wherein the purging pipe can be connected with the observation window and is used for conveying purging gas into the purging hole; the blowing holes are used for conveying the blowing gas in the blowing pipes to the inner side face of the observation window so as to form a gas isolation layer on the observation window. The utility model also discloses a coal pulverizer, including the stone coal bunker, the stone coal bunker has the observation window, and this coal pulverizer still includes the self-cleaning device of foretell observation window. The self-cleaning device of the observation window is simple in structure, and can also remove sundries attached to the observation window, so that the observation window can be kept clean for a long time, and the maintenance workload of personnel is reduced.
Description
Technical Field
The utility model particularly relates to a self-cleaning device and coal pulverizer of observation window.
Background
In a coal pulverizing system, a coal mill is a mechanical device for crushing and grinding coal briquettes into coal powder, and is an important auxiliary device of a coal powder furnace. The pebble bunker is used for collecting pebbles which are difficult to grind in the coal mill and is an important equipment component of the coal mill in the coal pulverizing system.
However, due to the fact that media conveyed by the pebble coal bunker are poor and the structure of the pebble coal bunker has certain quality problems, the occurrence rate of defects of the pebble coal bunker is high, an observation window needs to be arranged on the pebble coal bunker, and it is very important for an operator to see the working state of the pebble coal bunker of the coal mill clearly through the observation window.
However, the existing self-cleaning device for the observation window is generally complex in structure and cannot clean impurities attached to the observation window.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the above-mentioned not enough that exists among the prior art, provide a self-cleaning device of observation window and contain the coal pulverizer of this self-cleaning device, the self-cleaning device simple structure of observation window can make the observation window keep clean for a long time to reduce personnel's maintenance work load.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a self-cleaning device of an observation window comprises a purging mechanism, wherein the purging mechanism comprises a purging pipe and a purging hole arranged on the purging pipe, and the purging pipe can be connected with the observation window and is used for conveying purging gas into the purging hole;
the blowing holes are used for conveying the blowing gas in the blowing pipes to the inner side face of the observation window so as to form a gas isolation layer on the observation window.
Preferably, the number of the purge holes is multiple, and the plurality of the purge holes are distributed on the purge pipe so that the gas isolation layer is formed in a circular shape with the purge mechanism as a center.
Preferably, the number of the purge holes is three, the three purge holes are arranged at the same height of the purge pipe at equal intervals, and an included angle between an opening of each purge hole and the purge pipe is 10-90 degrees.
Preferably, the purge mechanism further comprises a gas compressor for compressing the purge gas to form a compressed gas, the compressed gas having a pressure of 30-500 Kpa.
Preferably, the purging mechanism further comprises a one-way valve, and the one-way valve is arranged between the gas compressor and the purging pipe and used for preventing the compressed gas from flowing backwards.
Preferably, the device also comprises a cleaning mechanism, the cleaning mechanism comprises a knob and a cleaning brush,
the sweeping brush and the knob are respectively arranged at two ends of the sweeping mechanism.
Preferably, the blowing pipe, the knob and the cleaning brush are made of high-temperature-resistant materials, and the high-temperature-resistant temperature range is 70-80 ℃.
Preferably, the blowing pipe, the knob and the cleaning brush are made of one of stainless steel, aluminum alloy and alloy steel.
The utility model also provides a coal pulverizer, including the stone coal bunker, the stone coal bunker has the observation window, coal pulverizer still includes the self-cleaning device of foretell observation window.
Preferably, the purging pipe in the purging mechanism is arranged in the middle of the observation window.
The utility model discloses a self-cleaning device of observation window, when setting up it on the medial surface of observation window, can sweep the medial surface of observation window automatically to reducible observation window cleans and changes the number of times, in order to prolong the cycle of cleaning and the life cycle to the observation window; the utility model discloses a self-cleaning device of observation window still includes knob and brush cleaner, and the personnel of patrolling and examining are when the condition in the inspection observation window, can clean a small amount of laying dust on the medial surface of observation window through driving the brush cleaner rotation, guarantee the cleanliness of observation window through dual clean mechanism promptly, just the utility model discloses a self-cleaning device of observation window simple structure, the action is accurate.
The utility model discloses a through the self-cleaning device who sets up the observation window in the coal pulverizer, can guarantee the cleanness on observation window surface for a long time, make operating personnel can clearly observe the interior stone coal material level condition of stone coal bunker to avoid frequently shutting down the operation maintenance facility.
Drawings
Fig. 1 is a schematic structural diagram of a self-cleaning device of an observation window in an embodiment of the present invention.
In the figure: 1-fastening a nut; 2-cleaning brush; 3-an observation window; 4-a purging mechanism; 5-a one-way valve; 6-universal quick joint; 7-a knob; 8-purge holes.
Detailed Description
In the following, the technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
In the description of the present invention, it should be noted that the indication of orientation or positional relationship such as "up" is based on the orientation or positional relationship shown in the drawings, and is only for convenience and simplicity of description, and does not indicate or imply that the indicated device or element must be provided with a specific orientation, 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, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The utility model provides a self-cleaning device of an observation window, which comprises a blowing mechanism, a blowing pipe and a blowing hole arranged on the blowing pipe,
the purging pipe can be connected with the observation window and is used for conveying purging gas into the purging hole;
the blowing holes are used for conveying the blowing gas in the blowing pipes to the inner side face of the observation window so as to form a gas isolation layer on the observation window.
The utility model also provides a coal pulverizer, including the stone coal bunker, the stone coal bunker has the observation window, coal pulverizer still includes the self-cleaning device of foretell observation window.
Example 1:
the embodiment provides a self-cleaning device for an observation window, which comprises a purging mechanism 4, wherein as shown in fig. 1, the purging mechanism 4 comprises a purging pipe and a purging hole 8 arranged on the purging pipe, and the purging pipe can be connected with the observation window 3 and is used for conveying purging gas into the purging hole 8; the purge holes 8 are used for conveying purge gas in the purge pipe to the inner side surface of the observation window 3 so as to form a gas isolation layer on the observation window 3.
Specifically, sweep mechanism 4 and possess the function of blowing and cleaning observation window 3, sweep and be equipped with the connecting piece on the pipe for be connected with the medial surface of observation window 3, and sweep the inside cavity of pipe, the gas guide of being convenient for, through with gas carry the medial surface of observation window 3 through sweeping hole 8 on, form the gas isolation layer, so that keep the cleanness of the medial surface of observation window 3 for a long time, operating personnel can see through the inside operating condition of observation window 3 direct observation equipment. The self-cleaning device of the observation window in the embodiment can automatically sweep and clean the inner side surface of the observation window 3, and reduce the solid matters adhered to the inner surface of the observation window 3 through the formed gas isolation layer, so that the cleanness of the observation window 3 is kept for a long time, the cleaning and replacing times of the observation window 3 are reduced, and the cleaning period of the observation window 3 is prolonged.
The gas of follow output in every purge hole 8 can produce sectorial gas isolation layer on observation window 3 surface, in this embodiment, the quantity of the purge hole 8 that sets up is a plurality of, the distribution of a plurality of purge holes 8 on sweeping the pipe enables the shape of the gas isolation layer that forms for use the circular shape of sweeping mechanism 4 as the center, through forming the circular gas isolation layer that uses sweeping mechanism 4 as the center, can increase the visible area on the observation window 3, be convenient for observe the inside operational environment of observation window 3, make and observe no dead angle, further ensure the normal work of each machine in the observation window 3. Wherein, can design aperture and shape of purge hole 8 according to purge gas's pressure and the diameter of observation window 3, wherein, the shape of purge hole 8 does not have special requirement, but in the actual operation in-process, for the convenience of trompil, under the normal condition, purge hole 8 adopts circular or rectangle, and in addition, for the stone coal bunker, the working condition in observation window 3 can be clearly looked over to the circular gas isolation layer that forms the diameter on observation window 3 and be 90-130mm, can set up aperture and shape of purge hole according to above-mentioned condition correspondingly.
The number of the purge holes 8 is multiple, wherein the number of the purge holes 8 can be three, and the three purge holes 8 are arranged at the same height of the purge pipe at equal intervals; the number of the purge holes 8 can also be four, and the four purge holes 8 are arranged at the same height of the purge pipe at equal intervals; likewise, the number of the purge holes 8 can be five, six or even more; under the condition that the same pressure of the purge gas and the same diameter of the purge holes 8 are set, setting more purge holes can make the diameter of the generated circular gas isolation layer smaller, in other words, under the condition that the diameter of the purge holes 8 is the same, setting more purge holes 8 needs larger pressure of the purge gas when the circular gas isolation layer with the same diameter is formed, and the generated energy consumption is larger, so that the number of the purge holes 8 can be set to three in a common case.
In this embodiment, an included angle between an opening of each purge hole 8 and the purge pipe is 10 to 90 °, wherein the included angle may be 10 °, 30 °, 60 ° or 90 °, and the purge holes 8 should be disposed toward the observation window 3, so that the purge gas delivered from the purge holes 8 to the inner side surface of the observation window 3 can form a gas isolation layer. Under the condition of the included angle in the range, a circular gas isolation layer with the same diameter can be formed by using lower energy consumption, and the cleaning function of the observation window 3 is realized. In the present embodiment, the purge mechanism 4 further includes a gas compressor (not shown in fig. 1) for compressing the purge gas to form a compressed gas, wherein the compressed gas may be compressed air, compressed nitrogen, or the like, and the compressed air is usually adopted. In addition, the pressure range of the compressed gas is 30-500Kpa, and under the pressure of the compressed gas in the range, the purging gas can be ensured to form a gas isolation layer on the surface of the observation window 3, and the energy consumption can be reduced.
In this embodiment, the purging mechanism further comprises a one-way valve 5, wherein the one-way valve 5 is communicated with the input end of the purging pipe and is arranged between the gas compressor and the purging pipe for preventing the compressed gas from flowing backwards.
The self-cleaning device in the embodiment further comprises a cleaning mechanism, the cleaning mechanism comprises a knob 7 and a sweeping brush 2, the sweeping brush 2 and the knob 7 are respectively connected with the sweeping mechanism 4, particularly, the sweeping brush 2 and the knob 7 are respectively arranged at two ends of the sweeping pipe, and the sweeping brush 2 is remotely connected with the knob 7. The length of the cleaning brush 2 extends in the longitudinal direction of the observation window 3.
Self-cleaning device in this embodiment adopts fastening nut 1 to fix brush cleaner 2 on sweeping mechanism 4, can adopt locking nut or two nuts to fasten for preventing its locking fastening nut 1 that becomes flexible, when operating personnel need inspect the condition in observation window 3, can rotate knob 7 for knob 7 drives and sweeps mechanism 4 and rotates, thereby it is rotatory to drive brush cleaner 2 that is in the mechanism 4 other end that sweeps, in order to reach the purpose of cleaning, in order to guarantee the cleanliness of observation window through dual cleanness.
Preferably, the check valve 5 and the gas compressor in this embodiment are connected by a universal quick joint 6, wherein the universal quick joint 6 is a gas guiding and conveying device, and can ensure that the air supply of the horizontal joint is not affected and the horizontal joint does not rotate along with the knob 7 when the equipment rotates in the vertical direction. In particular, a universal quick coupling 6 is provided at the input of the non-return valve 5, between the non-return valve 5 and the knob 7.
Optionally, the purging pipe, the knob 7 and the sweeping brush 2 are made of high-temperature resistant materials, and the high-temperature resistant materials can withstand the temperature range of 70-80 ℃.
In this embodiment, sweep pipe, knob 7 and cleaning brush 2 and adopt one of stainless steel, aluminum alloy, alloy steel to make, adopt above-mentioned material can effectively prevent that self-cleaning device from receiving the influence of environment such as high temperature, acid corrosion, the life of the self-cleaning device of effectual extension observation window.
The self-cleaning device for the observation window can automatically sweep the surface of the observation window, reduce the cleaning and replacing times of the observation window and prolong the cleaning period of the observation window; the knob is arranged in the self-cleaning device of the observation window in the embodiment, when inspection personnel inspect the condition in the observation window, a small amount of dust accumulation on the inner side surface of the observation window can be cleaned through the rotation of the cleaning brush, so that the observation window is provided with the dual cleaning device to ensure the cleanliness of the observation window, and the self-cleaning device of the observation window is simple in structure and accurate in cleaning action.
Example 2:
the embodiment discloses a coal mill, which comprises a pebble coal bin and a self-cleaning device of the observation window in embodiment 1, wherein the pebble coal bin is provided with the observation window 3.
In this embodiment, the purging mechanism 4 is fixed in the middle of the observation window 3 by a connecting piece on the purging pipe.
The pebble coal bunker of the coal mill of the embodiment can ensure the cleanness of the surface of the observation window for a long time due to the self-cleaning device of the observation window, so that an operator can clearly observe the pebble coal level condition in the pebble coal bunker, and frequent shutdown of maintenance equipment is avoided.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A self-cleaning device of an observation window is characterized by comprising a blowing mechanism (4) which comprises a blowing pipe and a blowing hole (8) arranged on the blowing pipe,
the purging pipe can be connected with the observation window (3) and is used for conveying purging gas into the purging hole (8);
the purge hole (8) is used for conveying purge gas in the purge pipe to the inner side surface of the observation window (3) so as to form a gas isolation layer on the observation window.
2. Self-cleaning device for observation windows according to claim 1, characterized in that the number of said purge holes (8) is multiple and the distribution of said purge holes (8) on the purge tube is such as to form said gas barrier in the shape of a circle centred on the purge means (4).
3. The self-cleaning device for the observation window according to the claim 2, wherein the number of the blowing holes (8) is three, the three blowing holes (8) are arranged at the same height of the blowing pipe at equal intervals, and the opening of each blowing hole (8) forms an included angle of 10-90 degrees with the blowing pipe.
4. Self-cleaning device for observation windows according to claim 1, characterized in that the purge means (4) further comprise a gas compressor for compressing a purge gas to form a compressed gas having a pressure of 30-500 Kpa.
5. A self-cleaning device for a sight glass according to claim 4,
the purging mechanism further comprises a one-way valve (5), and the one-way valve (5) is arranged between the gas compressor and the purging pipe and used for preventing the compressed gas from flowing backwards.
6. A self-cleaning device of a viewing window according to any of claims 1-5, wherein the device further comprises a cleaning mechanism comprising a knob (7) and a cleaning brush (2),
the sweeping brush (2) and the knob (7) are respectively arranged at two ends of the blowing mechanism (4).
7. The self-cleaning device of the observation window according to the claim 6, characterized in that the blowing pipe, the knob (7) and the cleaning brush (2) are made of high temperature resistant material, and the high temperature resistant temperature range is 70-80 ℃.
8. The self-cleaning device of the observation window according to the claim 7, wherein the purging tube, the knob (7) and the cleaning brush (2) are made of one of stainless steel, aluminum alloy and alloy steel.
9. A coal pulverizer comprising a pebble coal bunker having a viewing window, characterized in that the coal pulverizer further comprises a self-cleaning device for the viewing window of any one of claims 1 to 8.
10. The coal mill of claim 9, wherein the purging tube of the purging mechanism of the self-cleaning device of the observation window is disposed in the middle of the observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638920.0U CN211412998U (en) | 2019-09-27 | 2019-09-27 | Self-cleaning device of observation window and coal pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638920.0U CN211412998U (en) | 2019-09-27 | 2019-09-27 | Self-cleaning device of observation window and coal pulverizer |
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| CN211412998U true CN211412998U (en) | 2020-09-04 |
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| CN201921638920.0U Active CN211412998U (en) | 2019-09-27 | 2019-09-27 | Self-cleaning device of observation window and coal pulverizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967636A (en) * | 2021-09-10 | 2022-01-25 | 华能汕头海门发电有限责任公司 | Self-rotating blowing type ash removal device for observation window of coal feeder |
| CN114192501A (en) * | 2021-12-10 | 2022-03-18 | 中国航天空气动力技术研究院 | Pneumatic dust keeper that removes of pneumatic conveying pipeline observation window |
-
2019
- 2019-09-27 CN CN201921638920.0U patent/CN211412998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967636A (en) * | 2021-09-10 | 2022-01-25 | 华能汕头海门发电有限责任公司 | Self-rotating blowing type ash removal device for observation window of coal feeder |
| CN114192501A (en) * | 2021-12-10 | 2022-03-18 | 中国航天空气动力技术研究院 | Pneumatic dust keeper that removes of pneumatic conveying pipeline observation window |
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