CN212953081U - Star-shaped ash discharging valve with low failure rate - Google Patents
Star-shaped ash discharging valve with low failure rate Download PDFInfo
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- CN212953081U CN212953081U CN202021228560.XU CN202021228560U CN212953081U CN 212953081 U CN212953081 U CN 212953081U CN 202021228560 U CN202021228560 U CN 202021228560U CN 212953081 U CN212953081 U CN 212953081U
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- valve body
- impeller
- star
- valve
- tuning fork
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- 238000007599 discharging Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a star-shaped ash discharging valve with low failure rate, which comprises a valve body, wherein the upper opening of the valve body is provided with a feed inlet, the lower opening of the valve body is provided with a discharge outlet, one end of the valve body is sequentially provided with a speed reducer and a frequency modulation motor, and the other end of the valve body is provided with an end cover; an impeller is arranged in the valve body and is connected with a speed reducer through a transmission shaft, the impeller is provided with a plurality of blades, and the frequency modulation motor drives the transmission shaft to rotate to drive the impeller to rotate so as to convey materials entering the feeding hole to the discharging hole to be discharged; a tuning fork type material level annunciator is arranged at the position, close to the feeding hole, of the star-shaped ash discharge valve, and a control circuit of the tuning fork type material level annunciator comprises a tuning fork, a piezoelectric element, an electronic circuit and the like. The device has high wear resistance, good air tightness, convenient maintenance and difficult shell clamping; unloading is even steady, and the fault rate is low, long service life, it is efficient to unload.
Description
Technical Field
The utility model relates to an ash discharge valve technical field specifically is a star type ash discharge valve of low fault rate.
Background
The star-shaped ash discharge valve is a main device for discharging ash and blowing air of dust removing equipment and feeding other equipment, is suitable for powdery materials and granular materials, is generally arranged at the lower part of an ash hopper of a dust remover, and is widely applied to industrial departments of environmental protection, metallurgy, chemical industry and the like, and the upper part of the star-shaped ash discharge valve is required to be kept storing dust with a certain height for ensuring the tightness of a joint without air leakage.
The star-shaped cinder valve runs for a long time, the shaft end and the packing are abraded, axial air leakage and ash leakage are caused, and the maintenance is difficult; foreign matters (broken iron slag, bolts, nuts and welding rod heads) are left in a waste heat furnace and a bag-type dust collector which are arranged at the upper part of the star-shaped ash discharge valve, so that equipment is damaged due to the fact that a shell of the equipment is clamped or a motor is short-circuited; when the material collapse or the upper bridging phenomenon occurs in the star-shaped ash discharge valve, the dredging is difficult, people are easily scalded, the impeller is blocked, and the motor is burnt out.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a star type unloading valve of low fault rate, aim at overcoming the frequent difficult defect of overhauing of trouble of star type unloading valve in the use.
In order to achieve the purpose, the technical scheme is as follows:
a star-shaped ash discharging valve with low failure rate comprises a valve body, wherein the valve body is cylindrical, the axis line of the valve body is horizontally arranged, a feeding hole is formed in the upper opening of the valve body, a discharging hole is formed in the lower opening of the valve body, a speed reducer and a frequency modulation motor are sequentially arranged at one end of the valve body, an end cover is arranged at the other end of the valve body, and a handle is arranged on the end cover;
the valve body is internally provided with an impeller, the impeller is connected with a speed reducer through a transmission shaft, a rotating shaft of the impeller is sleeved on the transmission shaft, the rotating shaft of the impeller is coaxial with the axial lead of the valve body, the impeller is provided with a plurality of blades, and the frequency modulation motor drives the transmission shaft to rotate to drive the impeller to rotate so as to convey materials entering a feeding hole to a discharging hole to be discharged;
a tuning fork type material level annunciator is arranged at the part of the star-shaped ash discharge valve close to the feed inlet, and a control circuit of the tuning fork type material level annunciator comprises a tuning fork, a piezoelectric element, an electronic circuit and the like; the electronic circuit comprises an amplifier, a rectifier, an emitter coupling element, a controller and a signaler.
Furthermore, the end part of the blade is lined with a polyvinyl fluoride sealing strip, so that the end part of the blade can be ensured to be in good contact with the inner wall of the valve body.
Furthermore, the impeller is arranged in a manner of being isolated from the bearings at the two ends of the impeller, so that the ultrafine powder can be prevented from contacting the bearings; the speed reducer is connected with the valve body through a chain wheel, and the influence of high-temperature dust is avoided.
Furthermore, the joint of the end cover and the valve body is sealed by a sealing element, and an alloy wear-resistant sleeve is adopted at the joint of the end cover and the valve body and the dynamic and static joint part.
Further, the impeller is a wear-resistant closed star-shaped impeller, the surface of blades of the impeller needs to be smooth, otherwise materials are easily adhered to the blades, and blockage is caused.
The utility model has the advantages that:
(1) the wear resistance is high, the air tightness is good, the overhaul is convenient, and the shell is not easy to clamp;
the end part of the blade of the impeller can be conveniently adjusted after the blade of the impeller is abraded, so that the blade still keeps good contact with the inside of the valve body, and the valve has good air locking performance. The alloy wear-resistant sleeve is adopted at the hinged part of the end cover and the valve body and at the dynamic and static combined part, so that the wear can be effectively prevented; the end cover is provided with a handle, and when a fault occurs, the end cover can be opened for maintenance.
The end part of the impeller blade is lined with a polyvinyl fluoride sealing strip, and the rigid blade is changed into a flexible blade, so that the end part of the blade can be ensured to be in good contact with the inner wall of the shell, and the phenomena that dust is extruded into a bearing and large particles are blocked are avoided; the inner wall of the device is smooth and is not easy to adhere dust.
(2) The unloading is uniform and stable, the failure rate is low, the service life is long, and the unloading efficiency is high;
the control circuit of the tuning fork type material level annunciator is composed of a tuning fork, a piezoelectric element, an electronic circuit and the like. The tuning fork is excited by the piezoelectric element and vibrates at a certain frequency, when the material level rises to touch the tuning fork, the amplitude and the frequency of the tuning fork are sharply attenuated and even stopped vibrating, if bridging or material collapse occurs on the tuning fork, the signal is not stable like the state during normal unloading before, fluctuation occurs, and an electronic circuit sends a signal to an alarm and a controller after detecting the signal change. Therefore, if too much material enters the feeding port, the speed can be automatically regulated through the frequency modulation motor, the discharging speed is controlled, and the situation that the impeller is blocked and the frequency modulation motor is burnt out is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a star-shaped impeller of the present invention;
fig. 3 is a flow chart of the tuning fork level annunciator of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The star-shaped ash discharge valve with low failure rate comprises a valve body 1, wherein the valve body 1 is cylindrical, the axis line of the valve body is horizontally arranged, the upper opening of the valve body 1 is provided with a feed inlet 2, the lower opening of the valve body 1 is provided with a discharge outlet 3, one end of the valve body 1 is sequentially provided with a speed reducer 4 and a frequency modulation motor 5, the other end of the valve body is provided with an end cover 6, and the end cover 6 is provided with a handle 61;
an impeller 7 is arranged in the valve body 1, the impeller 7 is connected with a speed reducer 4 through a transmission shaft 8, a rotating shaft 71 of the impeller 7 is sleeved on the transmission shaft 8, the rotating shaft 71 of the impeller 7 is coaxial with the axial lead of the valve body 1, the impeller 7 is provided with a plurality of blades 72, and the frequency modulation motor 5 drives the transmission shaft 8 to rotate to drive the impeller 7 to rotate so as to convey materials entering from the feeding hole 2 to the discharging hole 3 for discharging;
a tuning fork type material level annunciator 9 is arranged at the part of the valve body 1 close to the feed port 2, and a control circuit of the tuning fork type material level annunciator consists of a tuning fork 91, a piezoelectric element 92, an electronic circuit and the like; which in turn includes an amplifier 93, a rectifier 94, an emitter-coupled element 95, a controller 96, and a signaler 97.
The end part of the blade 72 is lined with a polyvinyl fluoride sealing strip 73, so that the end part of the blade 72 can be ensured to be in good contact with the inner wall of the valve body 1.
The impeller 7 is arranged in a manner of being isolated from the bearings at the two ends of the impeller, so that the ultrafine powder can be prevented from contacting the bearings; the speed reducer 4 is connected with the valve body 1 through a chain wheel, and the influence of high-temperature dust is avoided.
The joint of the end cover 6 and the valve body 1 is sealed by a sealing element, and the movable and static joint of the hinged joint of the end cover 6 and the valve body 1 adopts an alloy wear-resistant sleeve.
The impeller 7 is a wear-resistant closed star-shaped impeller, and the surfaces of the blades 72 of the impeller 7 are smooth, otherwise materials are easily adhered to the blades to cause blockage.
The working principle is as follows: when the utility model works, the frequency modulation motor 5 is started, the speed reducer 4 drives the rotating shaft 71 of the impeller in the valve body 1 to rotate uniformly, dust enters the valve body 1 from the feeding port 2 and is discharged from the discharging port 3, the material falls into the blank space of the rotor blade 72 by self gravity, the frequency modulation motor 5 drives the transmission shaft 8 to rotate the impeller 7 and the material rotates along with the rotation, the material is unloaded by self gravity, under the general condition, the ash discharging valve is arranged below an ash bucket of the dust remover, in order to ensure the tightness of the connection part and no air leakage, the upper part of the rotary ash discharge valve is always kept storing dust with a certain height, the frequency modulation motor 5 drives the impeller 7 to rotate through the coupling, the dust on the upper part of the valve body 1 is uniformly brought to the lower part, the dust is conveyed away through the ash conveying pipeline, and the length of the ash blowing port extending into the ash conveying pipeline is not too long, otherwise, incomplete cleaning is caused, and equipment faults are caused.
The control circuit of the tuning fork type level annunciator 9 arranged on the ash discharge valve comprises a tuning fork 91, a piezoelectric element 92, an electronic circuit and the like, wherein the electronic circuit comprises an amplifier 93, a rectifier 94, an emitter coupling element 95, a controller 96 and an annunciator 97. The tuning fork 91 is excited by the piezoelectric element 92 to vibrate at a certain frequency, so that when the upper part of the feed port 2 collapses or the ash discharge valve cannot discharge ash quickly to cause bridging of the upper part, when the material level touches the tuning fork 91, a signal changes and is not stable as before in normal discharging, the amplitude and the frequency of the tuning fork 91 are suddenly attenuated and even stopped vibrating, an electronic circuit detects the signal change and sends a signal to the controller 96, and the frequency modulation motor 5 can actively adjust the speed to increase the ash discharge rate or reduce the ash discharge amount, so that the faults of equipment jamming and burning the motor are avoided.
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 (5)
1. The utility model provides a star type unloading valve of low fault rate, includes the valve body, its characterized in that: the valve body is cylindrical, the axial lead of the valve body is horizontally arranged, the upper opening of the valve body is provided with a feed inlet, the lower opening of the valve body is provided with a discharge outlet, one end of the valve body is sequentially provided with a speed reducer and a frequency modulation motor, the other end of the valve body is provided with an end cover, and the end cover is provided with a handle;
the valve body is internally provided with an impeller, the impeller is connected with a speed reducer through a transmission shaft, a rotating shaft of the impeller is sleeved on the transmission shaft, the rotating shaft of the impeller is coaxial with the axial lead of the valve body, the impeller is provided with a plurality of blades, and the frequency modulation motor drives the transmission shaft to rotate to drive the impeller to rotate so as to convey materials entering a feeding hole to a discharging hole to be discharged;
a tuning fork type material level annunciator is arranged at the part of the star-shaped ash discharge valve close to the feed inlet, and a control circuit of the tuning fork type material level annunciator comprises a tuning fork, a piezoelectric element, an electronic circuit and the like; the electronic circuit comprises an amplifier, a rectifier, an emitter coupling element, a controller and a signaler.
2. The low failure rate star unloader valve of claim 1, wherein: the end part of the blade is lined with a polyvinyl fluoride sealing strip, so that the end part of the blade can be ensured to be in good contact with the inner wall of the valve body.
3. The low failure rate star unloader valve of claim 1, wherein: the impeller is arranged in a manner of being isolated from the bearings at the two ends of the impeller, so that the ultrafine powder can be prevented from contacting the bearings; the speed reducer is connected with the valve body through a chain wheel, and the influence of high-temperature dust is avoided.
4. The low failure rate star unloader valve of claim 1, wherein: the joint of the end cover and the valve body is sealed by a sealing element, and the joint of the end cover and the valve body, the dynamic and static joint part, adopts an alloy wear-resistant sleeve.
5. The low failure rate star unloader valve of claim 1, wherein: the impeller is a wear-resistant closed star-shaped impeller, the surface of the impeller blade needs to be smooth, otherwise materials are easily adhered to the impeller blade, and blockage is caused.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021228560.XU CN212953081U (en) | 2020-06-30 | 2020-06-30 | Star-shaped ash discharging valve with low failure rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021228560.XU CN212953081U (en) | 2020-06-30 | 2020-06-30 | Star-shaped ash discharging valve with low failure rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212953081U true CN212953081U (en) | 2021-04-13 |
Family
ID=75388479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021228560.XU Active CN212953081U (en) | 2020-06-30 | 2020-06-30 | Star-shaped ash discharging valve with low failure rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212953081U (en) |
-
2020
- 2020-06-30 CN CN202021228560.XU patent/CN212953081U/en active Active
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