CN114392663A - Spiral refining anti-blocking device - Google Patents
Spiral refining anti-blocking device Download PDFInfo
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- CN114392663A CN114392663A CN202111498838.4A CN202111498838A CN114392663A CN 114392663 A CN114392663 A CN 114392663A CN 202111498838 A CN202111498838 A CN 202111498838A CN 114392663 A CN114392663 A CN 114392663A
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- Prior art keywords
- rod
- air bag
- fixedly connected
- refining
- groove
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- 238000007670 refining Methods 0.000 title claims description 52
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000003756 stirring Methods 0.000 claims abstract description 41
- 238000013016 damping Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000003245 coal Substances 0.000 abstract description 47
- 238000000034 method Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a spiral material-homogenizing anti-blocking device, which relates to the field of coal material anti-blocking and comprises a circular sliding rail, wherein a material-homogenizing rod is rotatably connected between two bearing bases; according to the device, the driving blade rotates to suck outside gas into the inflation groove, and the air bag is communicated with the interior of the inflation groove, so that the sucked gas enters the air bag under the action of a driving force generated by continuous rotation of the driving blade, the telescopic end of the air bag expands outwards, a sliding groove in the bottom circular sliding rail is blocked, coal is prevented from entering the circular sliding rail in the falling process, the position of the material homogenizing rod can be adjusted normally in the follow-up process, the rationality of the device is improved, the expanded air bag can prevent the material homogenizing rod from displacing due to the impact effect of the coal in the rotating process, the material homogenizing rod can be ensured to be subjected to material homogenizing stirring according to an original position, and the stability of the material homogenizing rod during stirring is improved.
Description
Technical Field
The invention relates to the technical field of coal material anti-blocking, in particular to a spiral refining anti-blocking device.
Background
For a large-capacity high-parameter coal-fired power plant, the raw coal consumption of each unit per day is about ten thousand tons. Such large coal consumption requires stable and reliable operation of the fuel supply system. However, due to factors such as weather factors, increased water content of supplied coal, and internal components and contents of different coal types during transportation of raw coal, coal blockage often occurs during supply of raw coal from a bunker to a coal feeder. Once coal blockage occurs, the supply of a coal pulverizing system is interrupted, the load is greatly fluctuated, the system is unstable, and the flame combustion characteristic, the steam temperature characteristic and the like in a hearth are greatly influenced. Frequent coal cutting off, unstable flame in the hearth, and oil feeding for stable combustion in serious conditions, which causes great economic loss.
Current refining prevents stifled device, at the in-process that stirs, can cause to strike or extrude the material for the material caking is unfavorable for transportation and burning, and lacks damping device, and the material of whereabouts can strike the refining pole for a long time, leads to the damage of refining pole easily, and simultaneously, the position of refining pole is difficult to adjust, uses in the production of being not convenient for.
Disclosure of Invention
The invention aims to solve the defects that materials are beaten or extruded by a material homogenizing rod to be agglomerated, the falling materials impact the material homogenizing rod for a long time, the material homogenizing rod is easily damaged, and the position of the material homogenizing rod is difficult to adjust in the prior art, and provides a spiral material homogenizing anti-blocking device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a spiral refining anti-clogging device, comprising:
the bearing base is detachably connected with the circular slide rails, and a material homogenizing rod is rotatably connected between the two bearing bases;
the driving end of the driving assembly is fixedly connected with the bottom circular sliding rail, and the driven end of the driving assembly is fixedly connected with the material refining rod;
the stirring assembly is fixedly connected with the side wall of the refining rod and is used for stirring materials to improve the flowability of the materials;
and the sealing assembly is arranged inside the bottom circular sliding rail and is used for sealing the bottom circular sliding rail sliding groove to ensure the normal operation of the material refining rod.
Preferably, the driving assembly comprises a driving motor, the driving motor is fixedly connected with the bottom of the circular sliding rail, a first gear is fixedly connected with an output shaft of the driving motor, a second gear is fixedly connected with the lower portion of the homogenizing rod, a chain is meshed and connected between the second gear and the first gear, and a protective shell is sleeved on the outer side of the chain.
Preferably, the side wall of the homogenizing rod is provided with a groove, the stirring assembly comprises a positioning shaft, the positioning shaft is fixedly connected with the side wall of the groove, the middle part of the positioning shaft is sleeved with a damping ring, the side walls of the positioning shafts on two sides of the damping ring are both sleeved with a first spring, and the stirring rod is fixedly connected between the damping rings.
Preferably, the number of the positioning shafts arranged in the single groove is two, the stirring rod is of a hollow frame structure, and the distance from the outermost side of the stirring rod to the center of the refining rod is greater than the distance from the edge of the circular slide rail to the center of the refining rod in the same direction.
Preferably, the bottom of the circular slide rail is internally provided with an inflation groove, the bottom of the inflation groove is annularly provided with an air inlet, the sealing assembly comprises a driving blade, the driving blade is fixedly connected with the output shaft end of a driving motor, the inner wall of the inflation groove is fixedly connected with an air bag, the side wall of the air bag is annularly provided with an inflation hole, and the air bag is communicated with the inside of the inflation groove.
Preferably, the lower side wall of the extending end of the air bag is provided with a one-way valve, the airflow pushing force required by the opening of the one-way valve is equal to the airflow pushing force required by the complete expansion of the air bag, and the position of the one-way valve after the expansion of the air bag corresponds to the through groove of the circular sliding rail at the bottom.
Preferably, fixedly connected with reset spring between gasbag inner chamber stiff end and the flexible end, and reset spring is the annular setting, the air flow thrust that drive vane produced is greater than reset spring's coefficient of stiffness.
Preferably, the equal sliding connection in even material pole both ends has interior slide bar, interior slide bar outer wall has cup jointed the second spring, and the second spring external diameter is less than interior slide bar external diameter.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the stirring rod is driven to rotate by the homogenizing rod, so that coal falling from the outer side of the homogenizing rod is uniformly stirred, the fluidity of the coal is increased, the caking and blocking of the coal are avoided, the transportation efficiency of the coal is ensured, the combustion safety of the coal is also improved, and the stirring rod adopts a hollow frame structure, so that the striking or extrusion of the stirring rod on the coal can be avoided, the caking of the coal due to the stirring driving force is avoided, and the fluidity of the coal is further improved.
2. According to the device, the driving blade rotates to suck outside gas into the inflation groove, and the air bag is communicated with the interior of the inflation groove, so that the sucked gas enters the air bag under the action of a driving force generated by continuous rotation of the driving blade, the telescopic end of the air bag expands outwards, a sliding groove in the bottom circular sliding rail is blocked, coal is prevented from entering the circular sliding rail in the falling process, the position of the material homogenizing rod can be adjusted normally in the follow-up process, the rationality of the device is improved, the expanded air bag can prevent the material homogenizing rod from displacing due to the impact effect of the coal in the rotating process, the material homogenizing rod can be ensured to be subjected to material homogenizing stirring according to an original position, and the stability of the material homogenizing rod during stirring is improved.
3. According to the invention, the one-way valve is arranged on the lower side wall of the extending end of the air bag, after the air bag is completely expanded and unfolded, the one-way valve is opened by the driving force generated by the driving blade, so that redundant gas is discharged from the air bag, the air bag is prevented from being inflated and exploded by the gas continuously entering the air bag, the discharged gas can blow coal adhered to the side wall of the air bag, the friction force between the air bag and the inflation groove 7 during expansion and contraction of the air bag is reduced, and the service life of the air bag is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of a spiral refining anti-blocking device according to the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of a spiral refining anti-blocking device according to the present invention;
FIG. 3 is an enlarged schematic structural view of the area A in FIG. 2 of the spiral refining anti-blocking device according to the present invention;
FIG. 4 is a schematic view of the internal structure of an aeration tank of the spiral refining anti-blocking device according to the present invention;
FIG. 5 is a schematic view of the internal structure of an air bag of a spiral refining anti-blocking device according to the present invention;
fig. 6 is a schematic view of an air bag expansion structure of a spiral refining anti-blocking device provided by the invention.
In the figure: 1. a circular slide rail; 2. a bearing mount; 3. a material homogenizing rod; 31. a groove; 4. a drive assembly; 41. a drive motor; 42. a first gear; 43. a second gear; 44. a chain; 45. a protective shell; 5. a stirring assembly; 51. positioning the shaft; 52. a shock-absorbing ring; 53. a first spring; 54. a stirring rod; 6. a seal assembly; 61. a driving blade; 62. an air bag; 63. an inflation hole; 7. an inflation groove; 71. an air inlet; 8. a return spring; 9. an inner slide bar; 91. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a spiral refining anti-clogging device, comprising:
the device comprises circular slide rails 1, wherein a side wall plate is fixedly connected between the two circular slide rails 1, bearing bases 2 are fixedly connected in sliding grooves of the two circular slide rails 1, the bearing bases 2 are detachably connected with the circular slide rails 1, and a material homogenizing rod 3 is rotatably connected between the two bearing bases 2;
the driving end of the driving component 4 is fixedly connected with the bottom circular slide rail 1, and the driven end of the driving component 4 is fixedly connected with the material homogenizing rod 3;
the stirring assembly 5 is fixedly connected with the side wall of the refining rod 3, and the stirring assembly 5 is used for stirring materials and improving the material flowability;
seal assembly 6, seal assembly 6 sets up inside the circular slide rail 1 of bottom, and seal assembly 6 is used for sealing up 1 spout of circular slide rail in bottom, ensures that thing refining pole 3 can normal operating.
Through the arrangement of the structure, the homogenizing rod 3 can be fixed at any position inside the circular slide rail 1, and is convenient to adjust in the production process, so that the device can meet different production requirements, and the practical range of the device is improved.
Referring to fig. 1 and 2, the driving assembly 4 includes a driving motor 41, the driving motor 41 is fixedly connected with the bottom of the circular slide rail 1, an output shaft end of the driving motor 41 is fixedly connected with a first gear 42, a lower portion of the refining rod 3 is fixedly connected with a second gear 43, a chain 44 is engaged and connected between the second gear 43 and the first gear 42, and a protective shell 45 is sleeved on the outer side of the chain 44;
referring to fig. 2 and 3, a groove 31 is formed in the side wall of the refining rod 3, the stirring assembly 5 includes a positioning shaft 51, the positioning shaft 51 is fixedly connected with the side wall of the groove 31, a damping ring 52 is sleeved in the middle of the positioning shaft 51, first springs 53 are sleeved on the side walls of the positioning shaft 51 located on both sides of the damping ring 52, and a stirring rod 54 is fixedly connected between the two damping rings 52;
referring to fig. 3, the number of the positioning shafts 51 arranged in a single groove 31 is two, the stirring rod 54 adopts a hollow frame structure, and the distance from the outermost side of the stirring rod 54 to the center of the refining rod 3 is greater than the distance from the edge of the circular slide rail 1 in the same direction to the center of the refining rod 3;
through the arrangement of the structure, when the material refining and stirring are required, the driving motor 41 is started to drive the first gear 42 to rotate, the second gear 43 is meshed with the first gear 42 through the chain 44, so the material refining rod 3 can rotate along with the first gear, the outer side of the chain 44 is sleeved with the protective shell 45, the coal material can be prevented from falling into the chain 44, the normal rotation of the material refining rod 3 is ensured, then the material refining rod 3 can drive the stirring rod 54 to rotate, the coal material falling from the outer side of the material refining rod 3 is uniformly stirred, the fluidity of the coal material is increased, the caking and blocking of the coal material are avoided, the transportation efficiency of the coal material is ensured, the combustion safety of the coal material is improved, the stirring rod 54 adopts a hollow frame structure, the striking or extrusion of the material can be avoided, and the caking phenomenon of the coal material caused by the stirring driving force is avoided, further improving the fluidity of the coal material.
Referring to fig. 4 and 5, an inflation groove 7 is formed inside the bottom circular slide rail 1, an air inlet hole 71 is annularly formed at the bottom of the inflation groove 7, the sealing assembly 6 comprises a driving blade 61, the driving blade 61 is fixedly connected with an output shaft end of the driving motor 41, an air bag 62 is fixedly connected with the inner wall of the inflation groove 7, an inflation hole 63 is annularly formed in the side wall of the air bag 62, and the air bag 62 is communicated with the inside of the inflation groove 7;
through the arrangement of the structure, in the rotating process of the driving motor 41, the driving blade 61 is driven to rotate, and the air inlet hole 71 is annularly formed at the bottom of the inflation groove 7, so that the driving blade 61 can suck outside air into the inflation groove 7, and the air bag 62 is communicated with the interior of the inflation groove 7, so that the sucked air can enter the air bag 62 under the action of a driving force generated by the continuous rotation of the driving blade 61, the telescopic end of the air bag 62 is expanded outwards, a sliding groove in the circular sliding rail 1 at the bottom is blocked, coal is prevented from entering the circular sliding rail 1 in the falling process, the position adjustment of the homogenizing rod 3 can be normally performed subsequently, the rationality of the device is improved, and the expanded air bag 62 can also prevent the homogenizing rod 3 from displacing due to the impact action of the coal in the rotating process, ensure that the refining rod 3 can carry out refining stirring according to the primary position to this stability when having improved the refining rod 3 stirring.
Referring to fig. 6, a check valve is arranged on the lower side wall of the extending end of the air bag 62, the airflow pushing force required by the opening of the check valve is equal to the airflow pushing force required by the complete deployment of the air bag 62, and the position of the check valve after the deployment of the air bag 62 corresponds to the through groove of the bottom circular slide rail 1;
through the setting of above-mentioned structure, after gasbag 62 full inflation expandes, the driving force that drive blade 61 produced will make the check valve open to make unnecessary gas go out from gasbag 62, avoid gasbag 62 to be filled by the gas that constantly gets into and explode, and outer row of gas can also blow the coal charge of gasbag 62 lateral wall adhesion, when reducing the gasbag flexible and the inflation tank 7 between frictional force, with this life who has improved gasbag 62.
Referring to fig. 5 and 6, a return spring 8 is fixedly connected between the fixed end and the telescopic end of the inner cavity of the air bag 62, the return spring 8 is annularly arranged, and the airflow thrust generated by the driving blade 61 is greater than the stiffness coefficient of the return spring 8;
with the arrangement of the above configuration, firstly, smooth inflation and deployment of the airbag 62 can be ensured; secondly, after the driving blade 61 stops rotating, the air bag 62 will retract into the air charging groove 7 under the resilience of the return spring 8, so that the position of the refining rod 3 can be adjusted after the machine is stopped, and the air bag 62 can be used repeatedly, thereby improving the practicability of the device.
Referring to fig. 4, both ends of the refining rod 3 are slidably connected with inner slide bars 9, the outer wall of the inner slide bar 9 is sleeved with a second spring 91, and the outer diameter of the second spring 91 is smaller than that of the inner slide bar 9;
through the setting of above-mentioned structure, can increase buffering effect to refining pole 3, reduce the material striking and the jam condition that leads to the device to damage, improve refining pole 3's durability.
Referring to fig. 1-6, in the invention, when the material needs to be homogenized and stirred, the driving motor 41 is started to drive the first gear 42 to rotate, and the second gear 43 is meshed and connected with the first gear 42 through the chain 44, so the homogenizing rod 3 also rotates along with the first gear, and the protective shell 45 is sleeved outside the chain 44, so that the coal material can be prevented from falling into the chain 44, the normal rotation of the homogenizing rod 3 is ensured, then the homogenizing rod 3 can drive the stirring rod 54 to rotate, the coal material falling from the outer side of the homogenizing rod 3 is uniformly stirred, the fluidity of the coal material is increased, the caking and blocking of the coal material are avoided, the transportation efficiency of the coal material is ensured, the combustion safety of the coal material is improved, and the stirring rod 54 adopts a hollow frame structure, the striking or extrusion of the material can be avoided, the caking phenomenon of the coal material caused by the stirring driving force is avoided, the fluidity of the coal material is further improved;
in the rotating process of the driving motor 41, the driving blade 61 is driven to rotate, and the air inlet holes 71 are annularly formed in the bottom of the inflation groove 7, so that the driving blade 61 can suck outside air into the inflation groove 7, and the air bag 62 is communicated with the interior of the inflation groove 7, so that the sucked air can enter the air bag 62 under the action of a driving force generated by the continuous rotation of the driving blade 61, and further the telescopic end of the air bag 62 expands outwards, so that a sliding groove in the circular sliding rail 1 at the bottom is blocked, coal is prevented from entering the circular sliding rail 1 in the falling process, the subsequent position adjustment of the homogenizing rod 3 can be normally performed, the rationality of the device is improved, the expanded air bag 62 can also prevent the homogenizing rod 3 from displacing due to the impact action of the coal in the rotating process, and the homogenizing rod 3 can be ensured to be homogenized according to the preset position, thereby improving the stability of the refining bar 3 during stirring.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A spiral refining anti-blocking device, comprising:
the device comprises circular sliding rails (1), wherein a side wall plate is fixedly connected between the two circular sliding rails (1), bearing bases (2) are fixedly connected in sliding grooves of the two circular sliding rails (1), the bearing bases (2) are detachably connected with the circular sliding rails (1), and a material homogenizing rod (3) is rotatably connected between the two bearing bases (2);
the driving end of the driving component (4) is fixedly connected with the bottom circular sliding rail (1), and the driven end of the driving component (4) is fixedly connected with the material homogenizing rod (3);
the stirring assembly (5) is fixedly connected with the side wall of the material homogenizing rod (3), and the stirring assembly (5) is used for stirring materials to improve the material flowability;
sealing assembly (6), sealing assembly (6) set up inside bottom circular slide rail (1), and sealing assembly (6) are used for sealing bottom circular slide rail (1) spout, ensure even material pole (3) of thing and can normal operating.
2. The spiral refining anti-blocking device according to claim 1, wherein the driving assembly (4) comprises a driving motor (41), the driving motor (41) is fixedly connected with the bottom of the circular sliding rail (1), an output shaft end of the driving motor (41) is fixedly connected with a first gear (42), a second gear (43) is fixedly connected with the lower portion of the refining rod (3), a chain (44) is meshed between the second gear (43) and the first gear (42), and a protective shell (45) is sleeved on the outer side of the chain (44).
3. The spiral refining anti-blocking device according to claim 2, wherein a groove (31) is formed in the side wall of the refining rod (3), the stirring assembly (5) comprises a positioning shaft (51), the positioning shaft (51) is fixedly connected with the side wall of the groove (31), a damping ring (52) is sleeved in the middle of the positioning shaft (51), first springs (53) are sleeved on the side walls of the positioning shaft (51) on two sides of the damping ring (52), and a stirring rod (54) is fixedly connected between the two damping rings (52).
4. The spiral refining anti-blocking device according to claim 3, characterized in that the number of the positioning shafts (51) arranged in a single groove (31) is two, the stirring rod (54) adopts a hollow frame structure, and the distance from the outermost side of the stirring rod (54) to the center of the refining rod (3) is larger than the distance from the edge of the circular slide rail (1) in the same direction to the center of the refining rod (3).
5. The spiral refining anti-blocking device according to claim 4, wherein an inflation groove (7) is formed in the bottom of the circular slide rail (1), an air inlet hole (71) is formed in the bottom of the inflation groove (7) in an annular mode, the sealing assembly (6) comprises a driving blade (61), the driving blade (61) is fixedly connected with an output shaft end of the driving motor (41), an air bag (62) is fixedly connected to the inner wall of the inflation groove (7), an inflation hole (63) is formed in the side wall of the air bag (62) in an annular mode, and the air bag (62) is communicated with the interior of the inflation groove (7).
6. A spiral refining anti-blocking device according to claim 5, characterized in that the lower side wall of the protruding end of the air bag (62) is provided with a one-way valve, the airflow pushing force required by the opening of the one-way valve is equal to the airflow pushing force required by the complete deployment of the air bag (62), and the one-way valve is positioned corresponding to the through groove of the bottom circular slide rail (1) after the deployment of the air bag (62).
7. A spiral refining anti-blocking device according to claim 6, characterized in that a return spring (8) is fixedly connected between the fixed end and the telescopic end of the inner cavity of the air bag (62), the return spring (8) is arranged in a ring shape, and the air flow thrust generated by the driving blade (61) is greater than the stiffness coefficient of the return spring (8).
8. The spiral refining anti-blocking device according to claim 7, wherein both ends of the refining rod (3) are slidably connected with inner sliding rods (9), the outer wall of each inner sliding rod (9) is sleeved with a second spring (91), and the outer diameter of each second spring (91) is smaller than that of each inner sliding rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111498838.4A CN114392663A (en) | 2021-12-09 | 2021-12-09 | Spiral refining anti-blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111498838.4A CN114392663A (en) | 2021-12-09 | 2021-12-09 | Spiral refining anti-blocking device |
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| Publication Number | Publication Date |
|---|---|
| CN114392663A true CN114392663A (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111498838.4A Pending CN114392663A (en) | 2021-12-09 | 2021-12-09 | Spiral refining anti-blocking device |
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| EP0409039A1 (en) * | 1989-07-19 | 1991-01-23 | Werner Dr. Stahl | Bioreactor |
| CN103072686A (en) * | 2012-12-29 | 2013-05-01 | 青岛飞宇航空科技有限公司 | Inflation valve and diaphragm structure product |
| CN107059332A (en) * | 2017-04-19 | 2017-08-18 | 薛居振 | The antifouling washing machine of one kind water saving |
| CN108452728A (en) * | 2018-03-26 | 2018-08-28 | 朱德仲 | A kind of anticlogging livestock feed mixing arrangement |
| CN109277028A (en) * | 2017-07-20 | 2019-01-29 | 曾庆兵 | A kind of mixing plant |
| CN211250777U (en) * | 2019-11-28 | 2020-08-14 | 宜昌恒达利商品砼有限责任公司 | Spiral lifting type dead-corner-free concrete mixer |
| CN111994655A (en) * | 2020-08-12 | 2020-11-27 | 惠安县崇武镇芳鑫茶具商行 | Hopper convenient to discharge and using method thereof |
| CN112071039A (en) * | 2020-08-27 | 2020-12-11 | 李庭庭 | Gas supply safety protection device for gas combustion based on information technology |
-
2021
- 2021-12-09 CN CN202111498838.4A patent/CN114392663A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0409039A1 (en) * | 1989-07-19 | 1991-01-23 | Werner Dr. Stahl | Bioreactor |
| CN103072686A (en) * | 2012-12-29 | 2013-05-01 | 青岛飞宇航空科技有限公司 | Inflation valve and diaphragm structure product |
| CN107059332A (en) * | 2017-04-19 | 2017-08-18 | 薛居振 | The antifouling washing machine of one kind water saving |
| CN109277028A (en) * | 2017-07-20 | 2019-01-29 | 曾庆兵 | A kind of mixing plant |
| CN108452728A (en) * | 2018-03-26 | 2018-08-28 | 朱德仲 | A kind of anticlogging livestock feed mixing arrangement |
| CN211250777U (en) * | 2019-11-28 | 2020-08-14 | 宜昌恒达利商品砼有限责任公司 | Spiral lifting type dead-corner-free concrete mixer |
| CN111994655A (en) * | 2020-08-12 | 2020-11-27 | 惠安县崇武镇芳鑫茶具商行 | Hopper convenient to discharge and using method thereof |
| CN112071039A (en) * | 2020-08-27 | 2020-12-11 | 李庭庭 | Gas supply safety protection device for gas combustion based on information technology |
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Application publication date: 20220426 |