CN210689024U - Sand drying machine with tooth gap-shaped sealing device - Google Patents
Sand drying machine with tooth gap-shaped sealing device Download PDFInfo
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- CN210689024U CN210689024U CN201921702205.9U CN201921702205U CN210689024U CN 210689024 U CN210689024 U CN 210689024U CN 201921702205 U CN201921702205 U CN 201921702205U CN 210689024 U CN210689024 U CN 210689024U
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Abstract
The utility model discloses a sand drying machine with a tooth-gap-shaped sealing device, which relates to a manufacturing process device for pre-mixing mortar of building dry powder, comprising a sand drying machine body and a sand outlet bin body arranged at the discharge port of the sand drying machine body, wherein one end of the sand outlet bin body close to the sand drying machine body is provided with a feed inlet, the sand outlet bin body is provided with an annular sand collecting plate corresponding to the feed inlet, the upper end of the outer side wall of the sand outlet bin body is provided with a sand outlet flue pipe and a flange, the bottom of the sand outlet bin body is provided with a discharge hopper, the sand outlet bin body is movably provided with a heavy hammer air locking plate, the sand outlet bin body is provided with a tooth-gap-shaped sealing device, the tooth-gap-shaped sealing device comprises an annular fixed part and an annular tooth-shaped part, the included angle between the tooth-shaped part and the fixed part ranges from 0 to 40 degrees, one end of the, the tooth-shaped part is provided with a tooth gap, and the sealing device has the advantages of reasonable integral structure, no dust, no friction, long service life and good sealing effect.
Description
Technical Field
The utility model relates to a building dry powder ready-mixed mortar processing equipment especially relates to wet sand stoving processing equipment, concretely relates to sand baking machine.
Background
The drying-machine sand outlet on the market is sealed has 3 kinds of modes now, and the first kind is that the type is sealed back, and the second kind is that the fish scale is sealed, and the third kind is that rubber tape friction formula contact is sealed. The first type of the double-seal is characterized in that a double-channel of a common double-seal is too large due to the problems of manufacturing precision and installation precision, the sectional area of a cold air inlet accounts for 40% -70% of the total area of a smoke tube, dry and cold air enters a sand outlet bin too much, the temperature in the sand outlet bin is suddenly reduced, the saturation of the air is rapidly reduced, condensation occurs in a follow-up smoke tube and a bag-type dust collector or a cyclone dust collector, the steam smoke is influenced, and the yield is influenced due to unsmooth smoke discharge; the second type is fish scale sealing, which belongs to contact type sealing, and although the amount of dry and cold air entering the sand outlet bin is effectively controlled, the fish scale belongs to friction sealing, so that the problems of friction loss and troublesome installation exist during rotation; the third is rubber belt friction type contact sealing, the belt is fixed on the discharging barrel of the sand drying machine, and the section of the sand discharging bin is rubbed to form friction dynamic sealing. The scheme has the advantages that the sealing style is simple, and the defects that the friction loss is large under the suction force of the induced draft fan, the sealing reliability is reduced along with the abrasion, and the raw materials contain fine friction rubber powder, so that the scheme is particularly not suitable for quartz powder, nepheline powder and the like with purity requirements; the second disadvantage is that the device is newly installed, the sealing effect is good, but because the airflow vortex is arranged near the smoke tube at the top of the sand outlet bin, the airflow vortex is often generated to throw dust and sand in the sand outlet bin to the frictional joint of the belt, further rotate and flow out of the sand outlet bin. The utility model provides a scheme: the sand bin is characterized in that the sand bin is provided with a sand outlet, a smoke outlet is arranged at the bottom of the sand bin, a smoke outlet is arranged at the bottom of the smoke outlet, and the smoke outlet is communicated with the smoke outlet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the sealing problem of the sand outlet of the existing sand baking machine, providing a sand baking machine with a tooth gap-shaped sealing device, and having the advantages of reasonable overall structure, no dust, no friction, long service life and good sealing effect.
In order to realize the above purpose, the utility model discloses a technical scheme is: a sand drying machine with a tooth-gap-shaped sealing device comprises a sand drying machine body and a sand outlet bin body arranged at a discharge port of the sand drying machine body, wherein a feed port is formed in one end, close to the sand drying machine, of the sand outlet bin body, an annular sand collecting plate is arranged on the sand outlet bin body corresponding to the feed port, the annular sand collecting plate extends into the discharge port of the sand drying machine body, a manhole is formed in one side, away from the feed port, of the sand outlet bin body, a manhole cover plate is arranged on the sand outlet bin body corresponding to the manhole position, a sand outlet bin smoke pipe and a flange are arranged at the upper end of the outer side wall of the sand outlet bin body, a discharge hopper is arranged at the bottom of the sand outlet bin body, a heavy hammer air locking plate is movably arranged at a position right below the discharge hopper on the sand outlet bin body corresponding to the periphery of the sand collecting plate, the tooth-gap-shaped sealing device is arranged on the sand outlet bin, the sand drying machine comprises a sand outlet bin body, and is characterized in that the included angle between a tooth-shaped portion and a fixing portion ranges from 0 degree to 45 degrees, one end of the fixing portion is coaxially arranged on the outer side wall of the sand outlet bin body, the other end of the fixing portion is connected with the tooth-shaped portion, one end of the tooth-shaped portion is connected with the fixing portion, the other end of the tooth-shaped portion is bent inwards and lapped on the outer side wall of a discharge port of the sand drying machine body.
In order to further optimize the utility model discloses, can prefer following technical scheme for use:
preferably, the fixing part and the tooth-shaped part are made of an integrally formed metal piece.
Preferably, the included angle between the tooth-shaped part of the tooth-gap-shaped sealing ring and the fixing part is 15-30 degrees.
Preferably, the tooth gap width range of the tooth-shaped part is 3-15 mm, and the tooth gap depth range of the tooth-shaped part is 50-200 mm.
Preferably, the tooth gaps of the tooth-shaped part are obliquely arranged around the circumference of the fixing part, the inclination angle of the tooth gaps is 0-45 degrees, and the inclination direction of the tooth gaps is the same as the rotation direction of the sand drying machine.
Preferably, the tooth space development shape of the tooth-shaped portion is a rectangular opening.
Preferably, the tooth space spread shape of the tooth-shaped portion is a trapezoidal opening.
Preferably, an arc transition surface is arranged on the inner wall of one end, close to the fixing part, of the tooth gap of the tooth-shaped part.
Preferably, the horizontal distance between the outer edge of the smoke pipe and the manhole cover plate ranges from 0mm to 300 mm.
Preferably, the inner side wall of the sand outlet bin body is upwards provided with a channel steel reinforcing rib.
The utility model has the advantages that:
1. the utility model discloses in install tooth clearance shape sealing device between the sand drying machine body and the storehouse body of sand outlet bin, tooth profile of tooth portion is buckled and is contacted the discharge gate outer lane of sand drying machine host computer when tooth clearance shape sealing device installs, the tooth clearance on the tooth clearance shape sealing device realizes proper amount of air inlet, can maintain the vacuum requirement of sand outlet bin on the one hand, the appropriate amount of air inlet of on the other hand destroys the induced air swirl near sand outlet bin upper portion tobacco pipe flange, reduce the sand dust that arouses and throw away the outer condition in the storehouse, the sand dust of having eliminated the drying-machine kneck is to the pollution of environment, this sand drying machine possesses rational in infrastructure, and is dustless, frictionless, long service life, and is good in effect.
2. The utility model discloses the contained angle scope of tooth shape portion and fixed part is 0 ~ 45 among the well tooth gap shape sealing device, and the number of degrees is most suitable in 15 ~ 30, and the number of degrees swing when too little and too big time drying-machine rotates can all make tooth gap shape sealing washer profile of tooth part produce plastic deformation, and sealed effect variation, further, tooth gap shape can select for rectangle opening, long circle opening, trapezoidal opening and trapezoidal convex opening among the tooth gap shape sealing device: for rectangular, oblong openings; the two openings can be in a trapezoidal opening or a triangular opening after being bent, the minimum ventilation opening is in a triangular shape, and the difference between the two openings is that the oblong opening is more attractive when the root of the opening is bent; for trapezoidal openings and trapezoidal arc openings: the two can be in a trapezoidal opening or a rectangular opening after being bent, and the minimum air-permeable opening is a small narrow slit; the difference between the two is that when the root of the opening is bent, the trapezoidal arc-shaped opening is more attractive; furthermore, when the direction of the tooth gap inclined opening is consistent with the direction of the dryer, if sand grains or other impurities exist at the sealing part, the tooth gap inclined opening is more convenient to discharge than a straight opening.
3. The utility model discloses the horizontal distance scope between the tobacco pipe outer fringe of well sand silo and the manhole apron is 0 ~ 300mm, and this oversize then is difficult for forming induced air swirl, but sand dust subsides the effect not good in the sand silo, and suitable horizontal distance can guarantee the sealing performance of sand-baking machine sand outlet department.
Drawings
FIG. 1 is a schematic view of the overall structure of a sand dryer;
FIG. 2 is a schematic view of the internal structure of the sand drying machine;
FIG. 3 is a schematic view of the structure of a sand silo body;
FIG. 4 is an enlarged view of the structure at A;
FIG. 5 is a schematic view showing a developed structure of the backlash type seal device in embodiment 1;
FIG. 6 is a schematic view showing a developed structure of a tooth gap type seal device according to embodiment 2;
FIG. 7 is a schematic view showing a developed structure of a tooth gap type seal device according to embodiment 3;
FIG. 8 is a schematic view showing a developed structure of the backlash type seal device in embodiment 4;
FIG. 9 is a schematic view showing a developed structure of the backlash type seal device in example 5.
The sand drying machine comprises a sand drying machine body 1, a sand discharging bin body 2, a tooth gap-shaped sealing device 3, a manhole cover plate 4, a sand discharging bin smoke pipe 5, a sand discharging bin flange 6, a discharging bin 7, a weight hammer air locking device 8, a channel steel reinforcing rib 9, a tooth gap air inlet 10, an air induced vortex 11, a sand drying machine sand guide plate 12, a sand drying machine sand baffle 13, a sand discharging bin sand baffle 14, a fixing part 15, a tooth-shaped part 16, a weight hammer 17, an articulated shaft 18, a weight hammer air locking plate 19, a manhole 20, a tooth gap 21, a circular arc transition surface 22 and an inclined angle 23.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The sand outlet sealing of the dryer is commonly used in 3 modes at present, the first type of the double-channel sealing is characterized in that a double-channel of the common double-channel sealing is too large due to the problems of manufacturing precision and installation precision, the sectional area of a cold air inlet accounts for 40% -70% of the total area of a smoke tube, too much dry and cold air enters a sand outlet bin, the temperature in the sand outlet bin is suddenly reduced, the saturation of the air is rapidly reduced, condensation occurs in a follow-up smoke tube and a bag-type dust collector or a cyclone dust collector, the steam smoke is influenced, and the yield is influenced due to unsmooth smoke discharge; the second type is fish scale sealing, which belongs to contact type sealing, and although the amount of dry and cold air entering the sand outlet bin is effectively controlled, the fish scale belongs to friction sealing, so that the problems of friction loss and troublesome installation exist during rotation; the third is rubber belt friction type contact sealing, the belt is fixed on the discharging barrel of the sand drying machine, and the section of the sand discharging bin is rubbed to form friction dynamic sealing. The scheme has the advantages that the sealing style is simple, and the defects that the friction loss is large under the suction force of the induced draft fan, the sealing reliability is reduced along with the abrasion, and the raw materials contain fine friction rubber powder, so that the scheme is particularly not suitable for quartz powder, nepheline powder and the like with purity requirements; the second disadvantage is that the device is newly installed, the sealing effect is good, but because the airflow vortex is arranged near the smoke tube at the top of the sand outlet bin, the airflow vortex is often generated to throw dust and sand in the sand outlet bin to the frictional joint of the belt, further rotate and flow out of the sand outlet bin.
The utility model provides a technical scheme can be than the sealed littleer clearance of type that returns, does not have the sealed wearing and tearing of fish scale and belt, under the effect of draught fan, can inhale proper amount wind for destroy the sand dust that the induced air swirl near sand silo upper portion tobacco pipe flange arouses and throw away outside the storehouse body, proper amount air inlet does not influence the required necessary vacuum of drying-machine simultaneously.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-5, a sand baking machine with a tooth gap-shaped sealing device comprises a sand baking machine body 1 and a sand outlet bin body 2 arranged at a discharge port of the sand baking machine body, wherein an annular sand baking machine sand guide plate 12 and an annular sand baking machine sand baffle plate 13 are respectively arranged at the discharge port of the sand baking machine body 1, the sand baking machine sand guide plate is in an outward-expanding shape, and the sand baking machine sand baffle plate is arranged along the axial direction of the sand baking machine; a feeding hole is formed in one end, close to the sand drying machine body, of the sand outlet bin body 2, an annular sand outlet bin sand baffle 14 is arranged on the sand outlet bin body and corresponds to the feeding hole, the annular sand outlet bin sand baffle 14 extends into the discharging hole of the sand drying machine and corresponds to a position between a sand guide plate 12 of the sand drying machine and a sand baffle plate 13 of the sand drying machine, a manhole 20 is formed in one side, away from the feeding hole, of the sand outlet bin body, and an operator can observe the internal condition of the equipment through the manhole so as to timely process the sand outlet bin; go out on the sand silo storehouse body and correspond the manhole position and install manhole cover plate 4, seal up the manhole through manhole cover plate, go out sand silo tobacco pipe 5 and flange 6 are installed to the lateral wall upper end of the sand silo storehouse body, the horizontal distance scope between 5 outer fringe of sand silo tobacco pipe and the manhole cover plate is 200mm, this size is too big then be difficult for forming the induced air swirl, but the sand dust subsides the effect in the sand silo, the sealing performance of sand-baking machine sand outlet department can be guaranteed to suitable horizontal distance, the sectional area of the sand silo storehouse body and the sectional area of the sand silo tobacco pipe are than 10.8, this internal wind of sand-baking machine has arrived in the sand silo, average wind speed is according to effective ventilation cross-sectional change and speed reduction. A discharging hopper 7 is arranged at the bottom of the sand discharging bin body, a heavy hammer air locking device 8 is movably arranged at a position on the sand discharging bin body corresponding to the position right below the discharging hopper, the heavy hammer air locking device comprises a heavy hammer air locking plate, the heavy hammer air locking plate is welded on a movable hinge shaft sleeve, two hinge shaft sleeves are arranged, a first hinge shaft sleeve is welded on the sand discharging bin air discharging hopper to ensure that sand received by the sand discharging bin air locking plate does not flow onto the first hinge shaft sleeve when flowing downwards and directly flows to the lowest part of the inclined heavy hammer air locking plate, the other hinge shaft sleeve which can rotate and move is welded on the heavy hammer air locking plate, a hinge shaft is welded in the second hinge shaft sleeve, one end of the hinge shaft extends into the first hinge shaft sleeve, the other end of the hinge shaft 18 extends out of the discharging hopper to be provided with a heavy hammer swing arm shaft, a heavy hammer 17 is arranged on the heavy hammer swing arm shaft, and the inclination direction, after the heavy hammer air lock plate 19 is opened, the flowing sand can seal the periphery of the heavy hammer air lock plate, so that the minimum amount of air enters the sand outlet bin, and the occurrence of dust fall is reduced.
A tooth gap-shaped sealing device 3 is arranged on the sand outlet bin body corresponding to the periphery of the sand guide plate, the tooth gap-shaped sealing device 3 comprises an annular fixing part 15 and an annular tooth-shaped part 16, an included angle between the tooth-shaped part 15 of the tooth gap-shaped sealing ring and the fixing part 16 is 30 degrees, the included angle between the tooth-shaped part and the fixing part is 15-30 degrees and is moderate or too large, the tooth-shaped part of the tooth gap-shaped sealing ring can generate plastic deformation by swinging of the drying machine during rotation, and the sealing effect is poor; one end of the fixing part is coaxially arranged on the outer side wall of the sand outlet bin body, the other end of the fixing part is connected with a tooth-shaped part, one end of the tooth-shaped part is connected with the fixing part 15, the other end of the tooth-shaped part is inwards bent and lapped on the outer side wall of a sand drying machine sand baffle plate at a discharge port of the sand drying machine, tooth gaps are uniformly distributed on the tooth-shaped part around a shaft, the tooth gap width is 12mm, the tooth gap depth value of the tooth-shaped part 16 is 150mm, the tooth gaps 21 form small air inlets, and the proper tooth gap size can ensure proper tooth gap air inlet 10, so that the vacuum degree requirement of the sand outlet bin can be maintained, and the induced air vortex 11 near a smoke pipe flange at the upper part of the sand outlet bin can be damaged by proper amount of inlet air; the fixed part adopts integrated into one piece's metalwork with profile of tooth portion, and the material can weld ordinary carbon steel sheet material, like Q235 etc. chooses integrated into one piece's metalwork for use and can further promote the overall structure intensity that the tooth clearance appears sealing device, upwards installs the channel-section steel strengthening rib on the storehouse internal lateral wall of sand outlet bin, supports the storehouse body of sand outlet bin through the channel-section steel strengthening rib, can guarantee the overall structure intensity in the storehouse body working process of sand outlet bin.
Example 2:
as shown in fig. 1 to 4 and 6, example 2 is different from example 1 in that: the tooth space opening of the tooth-shaped part in the tooth space sealing device is an oblong opening, the inner side of the oblong opening is provided with an arc transition surface 22, the tooth space 21 can be a trapezoidal opening or a triangular opening after being bent, and the minimum ventilation opening is triangular, so that the oblong opening is more attractive when the root of the opening is bent compared with the difference between the two in embodiment 1; all the other structures are the same as the structure in embodiment 1, and are not repeated here, and proper air intake is realized to the shape of tooth gap, so that on one hand, the vacuum degree requirement of the sand outlet bin can be maintained, and on the other hand, the induced air vortex near the smoke pipe flange on the upper part of the sand outlet bin is destroyed by proper air intake, so that the condition that the caused sand dust is thrown out of the bin body is reduced, and the pollution of the sand dust at the interface of the dryer to the environment is eliminated.
Example 3:
as shown in fig. 1 to 4, fig. 7, and embodiment 3, the difference from the other embodiments is that: the tooth space 21 opening of the tooth-shaped part in the tooth space sealing device is a trapezoidal opening, the opening size of the trapezoidal opening is gradually enlarged from inside to outside, the tooth space can be a trapezoidal opening or a rectangular opening after being bent, and the minimum ventilation opening is a small narrow gap; all the other structures are the same as the structure in embodiment 1, and are not repeated here, and proper air intake is realized to the unique shape of tooth gap, so that the vacuum degree requirement of the sand outlet bin can be maintained, and the induced air vortex near the smoke pipe flange on the upper part of the sand outlet bin is damaged by proper air intake, so that the condition that the caused sand dust is thrown out of the bin body is reduced, and the pollution of the sand dust at the interface of the dryer to the environment is eliminated.
Example 4
As shown in fig. 1 to 4, fig. 7, and embodiment 4, the difference between the embodiments is that: the tooth gap opening of the tooth-shaped part in the tooth gap sealing device is a trapezoidal arc-shaped opening, the inner side of the tooth gap is provided with an arc transition surface 22, the opening size of the trapezoidal arc-shaped opening is gradually enlarged from inside to outside, the tooth gap can be a trapezoidal opening or a rectangular opening after being bent, and the minimum ventilation opening is a small narrow gap.
Example 5
As shown in fig. 1 to 4 and fig. 9, embodiment 5 is different from the other embodiments in that: the shape of the tooth gap in the embodiment can be selected according to the embodiment, meanwhile, the tooth gap in the embodiment is arranged in an inclined mode, the inclined range of the inclined angle 23 of the tooth gap 21 is 0-45 degrees, the inclined direction of the tooth gap is the same as the rotating direction of the sand drying machine, if sand grains or other impurities exist in the sealing position, the sand grains or other impurities are more convenient to discharge than the straight opening, the rest structures are the same as those in the embodiment 1, repeated description is omitted, proper air inlet is achieved through the unique shape of the tooth gap, on one hand, the vacuum degree requirement of the sand discharging bin can be maintained, on the other hand, the proper air inlet breaks an induced air vortex near a smoke pipe flange on the upper portion of the sand discharging bin, the condition that the caused sand dust is thrown out of the bin body is reduced, and the pollution.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (10)
1. The utility model provides a take tooth clearance shape sealing device's sand baking machine, includes the sand baking machine body and sets up the sand silo body of going out at sand baking machine body discharge gate position, the sand silo body of going out is close to sand baking machine one end and is provided with the feed inlet, it is provided with cyclic annular sand collecting plate to go out the corresponding feed inlet position on the sand silo body, cyclic annular sand collecting plate extends to in the sand baking machine body discharge gate, it deviates from feed inlet one side and has seted up the manhole to go out the sand silo body, it is provided with manhole cover plate, its characterized in that to correspond the manhole position on the sand silo body: the sand outlet bin is characterized in that a sand outlet bin smoke tube and a flange are arranged at the upper end of the outer side wall of the sand outlet bin body, a discharge hopper is arranged at the bottom of the sand outlet bin body, a heavy hammer air locking plate is movably arranged at a position right below the discharge hopper on the sand outlet bin body, a tooth gap sealing device is arranged at the peripheral position of a sand collecting plate on the sand outlet bin body, the tooth gap sealing device comprises an annular fixing part and an annular tooth-shaped part, the included angle range between the tooth-shaped part and the fixing part is 0-40 degrees, one end of the fixing part is coaxially arranged on the outer side wall of the sand outlet bin body, the other end of the fixing part is connected with the tooth-shaped part, one end of the tooth-shaped part is connected with the fixing part, the other end of the tooth-shaped part is inwards bent and.
2. A sand drying machine with a tooth gap type sealing device according to claim 1, characterized in that: the fixed part and the tooth-shaped part are made of metal pieces which are integrally formed.
3. A sand drying machine with a tooth gap type sealing device according to claim 1, characterized in that: the included angle range between the tooth-shaped part and the fixing part of the tooth gap-shaped sealing device is 15-30 degrees.
4. A sand drying machine with a tooth gap type sealing device according to claim 1, characterized in that: the tooth gap width range of the tooth-shaped part is 3-15 mm, and the tooth gap depth range of the tooth-shaped part is 50-200 mm.
5. A sand drying machine with a tooth gap type sealing device according to claim 1, characterized in that: the tooth gaps of the tooth-shaped portion are obliquely arranged around the circumference of the fixing portion, the inclination angle of the tooth gaps is 0-45 degrees, and the inclination direction of the tooth gaps is the same as the rotation direction of the sand drying machine.
6. A sand drying machine with a tooth gap-shaped sealing device according to claim 5, characterized in that: the tooth space of the tooth-shaped part is spread to be a rectangular opening.
7. A sand drying machine with a tooth gap-shaped sealing device according to claim 5, characterized in that: the tooth gap of the tooth-shaped part is in a trapezoidal opening shape.
8. A sand drying machine with a tooth gap type sealing device according to claim 6 or 7, characterized in that: and an arc transition surface is arranged on the inner wall of one end of the tooth gap of the tooth-shaped part close to the fixing part.
9. A sand drying machine with a tooth gap type sealing device according to claim 1, characterized in that: the horizontal distance range between the outer edge of the smoke tube and the manhole cover plate is 0-300 mm.
10. A sand drying machine with a tooth gap type sealing device according to claim 1, characterized in that: and channel steel reinforcing ribs are upwards arranged on the inner side wall of the sand outlet bin body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702205.9U CN210689024U (en) | 2019-10-12 | 2019-10-12 | Sand drying machine with tooth gap-shaped sealing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921702205.9U CN210689024U (en) | 2019-10-12 | 2019-10-12 | Sand drying machine with tooth gap-shaped sealing device |
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| CN210689024U true CN210689024U (en) | 2020-06-05 |
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| CN201921702205.9U Active CN210689024U (en) | 2019-10-12 | 2019-10-12 | Sand drying machine with tooth gap-shaped sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608592A (en) * | 2019-10-12 | 2019-12-24 | 郑州市同鼎机械设备有限公司 | Sand drying machine with tooth gap-shaped sealing device |
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2019
- 2019-10-12 CN CN201921702205.9U patent/CN210689024U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608592A (en) * | 2019-10-12 | 2019-12-24 | 郑州市同鼎机械设备有限公司 | Sand drying machine with tooth gap-shaped sealing device |
| CN110608592B (en) * | 2019-10-12 | 2024-01-05 | 郑州市同鼎机械设备有限公司 | Sand drying machine with tooth gap-shaped sealing device |
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