CN112682337A - Equipment and method for preparing high-purity liquid polyaluminum chloride - Google Patents
Equipment and method for preparing high-purity liquid polyaluminum chloride Download PDFInfo
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- CN112682337A CN112682337A CN202110036577.8A CN202110036577A CN112682337A CN 112682337 A CN112682337 A CN 112682337A CN 202110036577 A CN202110036577 A CN 202110036577A CN 112682337 A CN112682337 A CN 112682337A
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Abstract
The invention provides equipment for preparing high-purity liquid polyaluminium chloride, which comprises a ventilation fan arranged between a spray tower and an air outlet pipe, and the ventilation fan comprises a reaction kettle and a flue gas purification pipeline communicated with the reaction kettle through an air inlet pipe, wherein an air outlet of the ventilation fan aligned with the air inlet pipe is arranged in the flue gas purification pipeline, and the ventilation fan has an initial state, an upward blowing state, a reversing state and a downward air exhausting state. When the motor is started, the fan blades automatically deflect, the wind resistance is small, the starting is smoother, the motor is protected, and the service life of the motor is prolonged; when the fan is shut down, the fan blades are subjected to large wind resistance, the fan blades stop rotating quickly, the reversing time is shortened, the heat dissipation efficiency is improved, and the potential safety hazard is reduced.
Description
Technical Field
The invention relates to the field of chemical product production, in particular to equipment and a method for preparing high-purity liquid polyaluminium chloride.
Background
At present, production equipment commonly used in the production of polyaluminium chloride products is a reaction kettle, before production, a worker firstly puts reaction materials into the reaction kettle in sequence according to the material proportion, controls the reaction temperature of the reaction materials, and after the reaction of the materials is finished, the obtained polyaluminium chloride is dried and subpackaged. Wherein, the material in the reaction kettle is heated by introducing steam, but the energy consumption is increased by adopting steam for heating.
Prior patent CN207046877U discloses a heat energy recycling device in polyaluminium chloride production, including hot-blast furnace and reation kettle, the hot-blast furnace passes through flue gas conveying pipeline intercommunication flue gas washing device, and flue gas washing device passes through flue gas purification pipeline intercommunication hot air pipe, and the free end of hot air pipe stretches into polyaluminium chloride reation kettle bottom. The exhaust tail gas of the hot blast stove is processed, and the flue gas enters the polyaluminium chloride reaction kettle through a hot air pipe along a flue gas purification pipeline to heat reaction materials, so that the tail gas generated by the hot blast stove is used for heating the reaction kettle materials.
However, the inlet gas of the reaction kettle flows slowly, and a ventilation fan needs to be arranged to accelerate the process, so that the reaction efficiency is accelerated, and the reaction time is shortened. However, the use of conventional ventilators presents the following problems: when the motor is started, the motor load is overlarge, and the service life of the motor is damaged; when stopping, the fan stops slowly, reduces motor cooling efficiency, has the potential safety hazard.
Disclosure of Invention
The invention aims to provide equipment and a method for preparing high-purity liquid polyaluminium chloride aiming at the problem of slow gas inlet of a reaction kettle.
In order to achieve the purpose, the invention provides the following technical scheme: a device for preparing high-purity liquid polyaluminium chloride comprises a reaction kettle and a flue gas purification pipeline communicated with the reaction kettle through an air inlet pipe, wherein an air exchange fan with an air outlet aligned with the air inlet pipe is arranged in the flue gas purification pipeline;
the ventilator comprises a plurality of fan blades, connecting rods, balancing weights and a motor, wherein two connecting rods are connected between every two adjacent fan blades and are hinged through a hinge shaft, and a torsional spring for keeping an initial state and the balancing weights for increasing centrifugal force during rotation are arranged at the hinged positions of the two connecting rods;
the top and the bottom of the outer side of the fan blade are both provided with a limiting ball groove, the inner side and the outer side of the limiting ball groove are respectively provided with a first limiting block and a second limiting block in a protruding manner, and the outer side of the fan blade is provided with an arc-shaped groove for communicating the limiting ball grooves at the top and the bottom;
a ball hinge and a universal joint are connected between the fan blade and the connecting rod, the ball hinge comprises a hinge ball and a limiting rod for fixing the hinge ball, the hinge ball is rotatably arranged in a limiting ball groove, a first hinge hole and a second hinge hole with mutually vertical axes are respectively arranged at two ends of the side surface of the universal joint, the limiting rod is hinged and connected with the first hinge hole, and the second hinge hole is hinged and connected with the hinge end of the connecting rod;
the middle part of the inner side of each fan blade is fixed with a fan blade framework, the fan blade frameworks are rotatably arranged on a fan blade frame, so that the fan blades can deflect up and down, and the fan blade frame is fixed on an output shaft of the motor;
the ventilator has an initial state, an upward blowing state, a reversing state and a downward air draft state, and blades in the initial state are vertical; the fan blade is deflected up and down, the hinge ball is positioned in the limiting ball groove, and the limiting rod is positioned between the first limiting block and the second limiting block; in the reversing state, the hinge ball is positioned in the arc-shaped groove.
Preferably, the number of the fan blades is six, twelve connecting rods and twelve balancing weights are respectively arranged, and in an initial state, twelve connecting rods form a regular hexagon.
Preferably, the fan blade frame comprises an annular fixing ring and a fan blade frame ring which are arranged inside and outside, a sleeving groove is formed in the outer side of the fan blade frame ring, the fan blade framework is inserted into the sleeving groove, a plurality of fixing plates are fixedly connected between the annular fixing ring and the fan blade frame ring, and the part of each fixing plate, which protrudes inwards out of the annular fixing ring, is a spline block; the motor includes the motor shaft as the output shaft, is equipped with on the motor shaft to supply the spline piece to insert fixed spline groove.
Preferably, the flue gas purification pipeline is provided with a first valve and a second valve on two sides of a joint with the air inlet pipe, the air inlet pipe is provided with a third valve and a reversing ventilation window, one end of the flue gas purification pipeline is an air inlet, the other end of the flue gas purification pipeline is a cooling port, one end of the air inlet pipe is an air inlet end, the other end of the air inlet pipe is connected with the reaction kettle, the cooling port and the second valve are located on the same side of the air inlet end of the air inlet pipe, and the first valve and the reversing ventilation window are located on the.
Preferably, the ventilation fan is fixed on the flue gas purification pipeline through a fixing frame, the fixing frame bears the motor, and a motor shaft of the motor extends into the pipeline.
The invention also provides a preparation method of the high-purity polymerized aluminum chloride liquid, which comprises a heat energy recycling link, wherein when flue gas enters, the reversing ventilation window positioned on the gas inlet pipe and the second valve positioned at the tail end of the flue gas purification pipeline are closed, the first valve positioned at the gas inlet end of the flue gas purification pipeline and the third valve positioned on the gas inlet pipe 26 are opened, and the ventilation fan is started; when the motor is cooled, the motor is closed, the first valve and the third valve are closed, the reversing ventilation window and the second valve are opened, the polygon formed by the connecting rods is manually changed to the other end of the fan blade from the reversing ventilation window, the motor is started, and air enters from the reversing ventilation window and exits from the cooling port.
The invention has the advantages that:
the invention improves the heat energy recycling link in the preparation of high-purity polyaluminium chloride liquid, adopts the ventilating fan which can blow air upwards to accelerate air intake and blow air downwards to cool, and when the motor is started, the fan blades automatically deflect, the wind resistance is small, the starting is smoother, the motor is protected, and the service life of the motor is prolonged; when the fan is shut down, the fan blades are subjected to large wind resistance, the fan blades stop rotating quickly, the reversing time is shortened, the heat dissipation efficiency is improved, and the potential safety hazard is reduced.
Drawings
FIG. 1 is a schematic diagram of a reaction kettle for preparing a polyaluminum chloride solution.
Fig. 2 is a schematic structural view of the ventilator when not in operation.
Fig. 3 is an enlarged view of a position a when the ventilation fan is not in operation.
Fig. 4 is a schematic view of an upward blowing structure of the ventilation fan.
Fig. 5 is an enlarged view of the upward blowing air B of the ventilation fan.
Fig. 6 is a schematic view of a reversing structure of the ventilator.
Fig. 7 is an enlarged view of the reversing C of the ventilator.
Fig. 8 is a schematic view of a reversing structure of the ventilator.
Fig. 9 is an enlarged view of the reversing end D of the ventilator.
Fig. 10 is a schematic view of a downward air draft structure of the ventilator.
In fig. 11, the downdraft E of the ventilator is enlarged.
FIG. 12 is a schematic view of a fan blade structure.
Fig. 13 is a schematic view of a ball joint structure.
FIG. 14 is a schematic view of a gimbal design.
Fig. 15 is a schematic view of a counterweight block.
FIG. 16 is a schematic view of a fan blade frame structure.
Fig. 17 is a top view of the reversing process of the ventilator.
In the figure, 1, a balancing weight; 101. a counterweight block hinge hole; 102. a counterweight ball; 2. a connecting rod; 3. A fan blade; 301. a fan blade framework; 302. a first stopper; 303; a limiting surface; 304. a limiting ball groove; 305. a second limiting block; 306. an arc-shaped slot; 4. a fan blade holder; 401. a spline block; 402. a fan blade frame ring; 403. an annular retainer ring; 404. a sleeving groove; 405. a fixing plate; 5. a motor shaft; 6. a motor; 7. ball hinge joint; 701. hinging the ball; 702. a ball hinge hole; 703. a limiting rod; 8. a universal joint; 801. a first hinge hole of the universal joint; 802. a gimbal second hinge hole; 20. a flue gas purification pipeline; 21. a first valve; 22. a reversing ventilation window; 23. a second valve; 24. a third valve; 25. a ventilator; 26. an air inlet pipe; 27. a cooling port; 28. and (5) a reaction kettle.
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.
As shown in fig. 1 to 17, an apparatus for preparing high-purity liquid polyaluminium chloride comprises a reaction kettle 28 and a transverse flue gas purification pipeline 20, wherein the flue gas purification pipeline 20 is connected to the reaction kettle 28 through a gas inlet pipe 26, a first valve 21 and a second valve 23 are arranged on two sides of a joint of the flue gas purification pipeline 20 and the gas inlet pipe 26, the gas inlet pipe 26 is provided with a third valve 24 and a reversing ventilation window 22 located between the third valve 24 and the first valve 21, one end of the flue gas purification pipeline 20 is a gas inlet, the other end is a cooling port 27, one end of the gas inlet pipe 26 is a gas inlet end, the other end is connected to the reaction kettle 28, the cooling port 27 and the second valve 23 are located on the same side of the gas inlet end of the gas inlet pipe 26, and the first valve 21 and the reversing ventilation window 22 are located on. The flue gas purification pipe 20 is provided with a ventilation fan 25, and an air outlet of the ventilation fan 25 faces an air inlet end of the air inlet pipe 26. The ventilator 25 is fixed on the tube through a fixing frame, bears the motor, and only the motor shaft of the motor extends into the tube, so that hot air is prevented from affecting the motor.
The ventilation fan 25 includes:
two connecting rods 2 are connected between two adjacent fan blades 3, the two adjacent connecting rods 2 are hinged through a hinge shaft, and a torsion spring is arranged between the two hinged connecting rods 2; the top and the bottom of the outer side of the fan blade 3 are both provided with a limiting ball groove 304, the inner side and the outer side of the limiting ball groove 304 are respectively provided with a first limiting block 302 and a second limiting block 305 in a protruding manner, and the outer vertex angle surface of the first limiting block 302 is an arc-shaped limiting surface 303;
a ball hinge 7 and a universal joint 8 are connected between the fan blade 3 and the connecting rod 2, the ball hinge 7 comprises a hinge ball 701 and a limiting rod 703 for fixing the hinge ball 701, the hinge ball 701 is positioned in the limiting ball groove 304, and a ball hinge hole 702 is arranged on the limiting rod 703; the side surface of the universal joint 8 is provided with a first hinge hole 801 and a second hinge hole 802, and the axes of the first hinge hole 801 and the second hinge hole 802 are vertical to each other; the universal joint 8 is hinged with the ball hinge 7 through a hinge shaft passing through the first hinge hole 801 and the ball hinge hole 702, and the universal joint 8 is hinged at the bottom of the connecting rod 2 through a second hinge hole 802;
the outer side of fan blade 3 is equipped with the arc wall 306 that communicates with the spacing ball groove 304 of top and bottom, and second stopper 305 is passed in arc wall 306 to arc wall 306, and articulated ball 701 can follow in spacing ball groove 304 immigration arc wall 306, and the cross-section of arc wall 306 is the major arc, and articulated ball 701 of ball joint 7 can not fall out in two upper and lower spacing ball grooves 304 and arc wall 306. That is, the diameter of the hinge ball 701 is larger than the opening diameters of the limiting ball groove 304 and the arc-shaped groove 306, and the width of the limiting rod 703 is smaller than the distance between the adjacent first limiting block 302 and the second limiting block 305;
the counterweight block 1 comprises a counterweight ball 102 and a connecting rod fixed on the counterweight ball 102, and a counterweight block hinge hole 101 is formed in the connecting rod; the balancing weight 1 is hinged to the hinged end of the connecting rod 2 through a balancing weight hinged hole 101; in this embodiment, the hinge shaft between the connecting rods 2 above the fan blades 3 passes through the counterweight hinge hole 101 upward and the second hinge hole 802 downward;
the fan blade frame 4 comprises an annular fixing ring 403 and a fan blade frame ring 402 which are arranged inside and outside, a sleeving groove 404 is formed in the outer side of the fan blade frame ring 402, a fan blade framework 301 is fixed in the middle of the inner side of the fan blade 3, the fan blade framework 301 is rotatably inserted into the sleeving groove 404, so that the fan blade 3 can deflect up and down, a plurality of fixing plates 405 are fixedly connected between the annular fixing ring 403 and the fan blade frame ring 402, and the part of each fixing plate 405 which protrudes inwards out of the annular fixing ring 403 is a spline block 401;
the motor 6 includes a motor shaft 5 as an output shaft, and a spline groove for inserting and fixing the spline block 401 is formed on the motor shaft 5.
In the initial state, the fan blades 3 are in the vertical state, the included angle between the two connecting rods 2 located between the two adjacent fan blades 3 is an obtuse angle protruding outwards, and the included angle between the two connecting rods 2 located at the two sides of the fan blades 3 is a straight angle. The torsion spring between the adjacent links 2 serves to maintain the initial state of each link.
In this embodiment, the number of the fan blades 3 is six, and the number of the connecting rods 2 and the number of the balancing weights 1 are twelve. In the initial state, twelve links 2 form a regular hexagon. The universal joint 8 is against the stop surface 303 and the universal joint 8 is at right angles to the ball joint 7.
The working principle of the present invention is now explained as follows:
the hinge positions of the adjacent connecting rods 2 which form the straight angle and the obtuse angle are provided with torsion springs, and the torsion springs have the tendency of driving the twelve connecting rods 2 to form a hexagon during working. And the vertical fan blades are ensured when the ventilation fan does not work, so that the reversing operation is convenient.
When the fan blade, the connecting rod and the balancing weight are taken as a whole during rotation, the whole is divided into an upper part and a lower part from the horizontal plane of the fan blade frame, the weight of the upper side is large during rotation, and the inertia is large. When the motor is started, the lower part of the fan blade is driven and the upper part is driven. One side with large inertia can have a lag rotation, so when the flabellum is rotatory, ball articulated gag lever post 703 can block between two adjacent stoppers, then again because when the flabellum is rotatory, the ball articulated distance to the center grow on the horizontal plane, so the six sides form the articulated department of straight angle can be outside, become obtuse articulated department can be inside, the whole hexagon has a trend that becomes twelve deformations. When the motor starts completely, the hexagon tends to be dodecagon due to the effect of centrifugal force, the stability is kept, the fan blades also deflect to form a certain angle, and air blowing or air suction is started.
When the motor is started, the upper deflection and the lower deflection of the fan blades are large, and the fan blades tend to be horizontal, so that the wind resistance is small, the starting load of the motor is small, the starting is smoother, and the service life of the motor is prolonged. When the reversing is turned off, the dodecagon tends to be hexagonal due to speed reduction, the fan blades tend to be vertical, the wind resistance is large, the stalling is rapid, the reversing time is shortened, the heat dissipation efficiency is improved, and the potential safety hazard is reduced. In the reversing process, when the hinge ball is positioned on the outermost side of the arc-shaped groove, the twelve connecting rods form a regular hexagon with the fan blades as vertexes.
When the temperature needs to be reduced, the ball joint moves downwards along the arc-shaped groove, and the polygonal structure where the connecting rod counterweight block is located is changed to the bottom position of the fan blades, so that the reversing of the ventilating fan is realized, and the ventilating fan draws air downwards after being started.
A method for preparing high-purity polymerized aluminum chloride liquid comprises a heat energy recycling link, wherein when smoke enters, a reversing ventilation window 22 positioned on an air inlet pipe 26 and a second valve 23 positioned at the tail end of a smoke purification pipeline 20 are closed, a first valve 21 positioned at the air inlet end of the smoke purification pipeline 20 and a third valve 24 positioned on the air inlet pipe 26 are opened, and a motor of a ventilation fan is started; when the motor is cooled, the motor is closed, the first valve 21 and the third valve 24 are closed, the reversing ventilation window 22 and the second valve 23 are opened, the polygon formed by the connecting rods is manually changed to the other end of the fan blade from the reversing ventilation window 22, the motor is started, air enters from the reversing ventilation window 22 and exits from the cooling port 27, and the motor of the ventilation fan is cooled. The adopted ventilator is the ventilator in the above embodiment.
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 (6)
1. The equipment for preparing the high-purity liquid polyaluminium chloride is characterized in that: the device comprises a reaction kettle and a flue gas purification pipeline communicated with the reaction kettle through an air inlet pipe, wherein an air exchange fan with an air outlet aligned with the air inlet pipe is arranged in the flue gas purification pipeline;
the ventilator comprises a plurality of fan blades, connecting rods, balancing weights and a motor, wherein two connecting rods are connected between every two adjacent fan blades and are hinged through a hinge shaft, and a torsional spring for keeping an initial state and the balancing weights for increasing centrifugal force during rotation are arranged at the hinged positions of the two connecting rods;
the top and the bottom of the outer side of the fan blade are both provided with a limiting ball groove, the inner side and the outer side of the limiting ball groove are respectively provided with a first limiting block and a second limiting block in a protruding manner, and the outer side of the fan blade is provided with an arc-shaped groove for communicating the limiting ball grooves at the top and the bottom;
a ball hinge and a universal joint are connected between the fan blade and the connecting rod, the ball hinge comprises a hinge ball and a limiting rod for fixing the hinge ball, the hinge ball is rotatably arranged in a limiting ball groove, a first hinge hole and a second hinge hole with mutually vertical axes are respectively arranged at two ends of the side surface of the universal joint, the limiting rod is hinged and connected with the first hinge hole, and the second hinge hole is hinged and connected with the hinge end of the connecting rod;
the middle part of the inner side of each fan blade is fixed with a fan blade framework, the fan blade frameworks are rotatably arranged on a fan blade frame, so that the fan blades can deflect up and down, and the fan blade frame is fixed on an output shaft of the motor;
the ventilator has an initial state, an upward blowing state, a reversing state and a downward air draft state, and blades in the initial state are vertical; the fan blade is deflected up and down, the hinge ball is positioned in the limiting ball groove, and the limiting rod is positioned between the first limiting block and the second limiting block; in the reversing state, the hinge ball is positioned in the arc-shaped groove.
2. The apparatus for preparing high-purity liquid polyaluminum chloride according to claim 1, wherein: the fan blades are six, twelve connecting rods and twelve balancing weights are arranged respectively, and in an initial state, twelve connecting rods form a regular hexagon.
3. The apparatus for preparing high-purity liquid polyaluminum chloride according to claim 1, wherein: the fan blade frame comprises an annular fixing ring and a fan blade frame ring which are arranged inside and outside, the outer side of the fan blade frame ring is provided with a sleeving groove, the fan blade framework is inserted into the sleeving groove, a plurality of fixing plates are fixedly connected between the annular fixing ring and the fan blade frame ring, and the part of each fixing plate, which protrudes inwards out of the annular fixing ring, is a spline block; the motor includes the motor shaft as the output shaft, is equipped with on the motor shaft to supply the spline piece to insert fixed spline groove.
4. The apparatus for preparing high-purity liquid polyaluminum chloride according to claim 1, wherein: the gas cleaning pipeline is provided with a first valve and a second valve on two sides of a joint with the gas inlet pipe, the gas inlet pipe is provided with a third valve and a reversing ventilation window, one end of the gas cleaning pipeline is an air inlet, the other end of the gas cleaning pipeline is a cooling port, one end of the gas inlet pipe is an air inlet end, the other end of the gas inlet pipe is connected with the reaction kettle, the cooling port and the second valve are located on the same side of the air inlet end of the gas inlet pipe, and the first valve and the reversing ventilation window are located on the other side.
5. The apparatus for preparing high-purity liquid polyaluminum chloride according to claim 4, wherein: the ventilator is fixed on the flue gas purification pipeline through a fixing frame, the fixing frame bears a motor, and a motor shaft of the motor extends into the pipeline.
6. A preparation method of high-purity polymerized aluminum chloride liquid comprises a heat energy recycling link, and is characterized in that: when smoke enters, the reversing ventilation window positioned on the air inlet pipe and the second valve positioned at the tail end of the smoke purification pipeline are closed, the first valve positioned at the air inlet end of the smoke purification pipeline and the third valve positioned on the air inlet pipe 26 are opened, and the ventilation fan is started; when the motor is cooled, the motor is closed, the first valve and the third valve are closed, the reversing ventilation window and the second valve are opened, the polygon formed by the connecting rods is manually changed to the other end of the fan blade from the reversing ventilation window, the motor is started, air enters from the reversing ventilation window and exits from the cooling port, and the adopted ventilation fan is the ventilation fan disclosed by any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110036577.8A CN112682337A (en) | 2021-01-12 | 2021-01-12 | Equipment and method for preparing high-purity liquid polyaluminum chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110036577.8A CN112682337A (en) | 2021-01-12 | 2021-01-12 | Equipment and method for preparing high-purity liquid polyaluminum chloride |
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| Publication Number | Publication Date |
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| CN112682337A true CN112682337A (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110036577.8A Pending CN112682337A (en) | 2021-01-12 | 2021-01-12 | Equipment and method for preparing high-purity liquid polyaluminum chloride |
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| Country | Link |
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| CN (1) | CN112682337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413985A (en) * | 2021-08-25 | 2021-09-21 | 南通市立新机械制造有限公司 | Mechanical crushing treatment device for household garbage |
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| CN207046877U (en) * | 2017-06-28 | 2018-02-27 | 山东天健水处理科技有限公司 | Heat energy recovery device in a kind of aluminium polychloride production |
| CN207960992U (en) * | 2018-03-19 | 2018-10-12 | 中山奥凯华新电子有限公司 | A kind of direct current generator ventilation fan |
| CN110067698A (en) * | 2019-03-30 | 2019-07-30 | 杨凯 | The adaptive polymorphic deflection adjusting method of blade of wind-driven generator |
| CN110985438A (en) * | 2019-12-27 | 2020-04-10 | 长安大学 | Centrifugal fan with variable-amplitude blades |
| CN211314678U (en) * | 2019-12-25 | 2020-08-21 | 沧州临港锐铮科技有限公司 | Filter-press pump for filtering poly-aluminum chloride liquid |
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2021
- 2021-01-12 CN CN202110036577.8A patent/CN112682337A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080367A (en) * | 1992-06-15 | 1994-01-05 | 陈启星 | The motor of two-sided symmetroid paddle motor fan |
| CN105604980A (en) * | 2016-01-07 | 2016-05-25 | 惠而浦（中国）股份有限公司 | Cooling fan with angle-adjustable fan blades and motor using cooling fan |
| CN106121912A (en) * | 2016-08-29 | 2016-11-16 | 南京林业大学 | A kind of vertical axis adjustable wing wind-driven generator |
| CN207046877U (en) * | 2017-06-28 | 2018-02-27 | 山东天健水处理科技有限公司 | Heat energy recovery device in a kind of aluminium polychloride production |
| CN207960992U (en) * | 2018-03-19 | 2018-10-12 | 中山奥凯华新电子有限公司 | A kind of direct current generator ventilation fan |
| CN110067698A (en) * | 2019-03-30 | 2019-07-30 | 杨凯 | The adaptive polymorphic deflection adjusting method of blade of wind-driven generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413985A (en) * | 2021-08-25 | 2021-09-21 | 南通市立新机械制造有限公司 | Mechanical crushing treatment device for household garbage |
| CN113413985B (en) * | 2021-08-25 | 2021-11-16 | 南通市立新机械制造有限公司 | Mechanical crushing treatment device for household garbage |
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Application publication date: 20210420 |
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