CN209944933U - Vacuum paddle dryer - Google Patents
Vacuum paddle dryer Download PDFInfo
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- CN209944933U CN209944933U CN201920479815.0U CN201920479815U CN209944933U CN 209944933 U CN209944933 U CN 209944933U CN 201920479815 U CN201920479815 U CN 201920479815U CN 209944933 U CN209944933 U CN 209944933U
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Abstract
The utility model discloses a vacuum paddle desiccator, include: the drying cylinder, locate the stirring subassembly in the drying cylinder to and be used for driving the rotatory drive mechanism of stirring subassembly. The drying cylinder is horizontally arranged relative to the ground and is provided with a hollow inner cavity for containing materials; the top of the drying cylinder is connected with a vacuum pump through a vacuum pipeline; the stirring component is arranged in the inner cavity of the drying cylinder along the length direction of the drying cylinder; the stirring component comprises two hollow stirring blades arranged in the inner cavity of the drying cylinder; the hollow stirring blade comprises a hollow shaft and a hollow blade arranged on the outer side wall of the hollow shaft; wherein, two ends of the hollow shaft are respectively suitable for extending out from the end part of the drying cylinder in the width direction; the transmission mechanism is suitable for driving the stirring assembly to rotate in the inner cavity of the drying cylinder so as to turn over the materials in the inner cavity of the drying cylinder.
Description
Technical Field
The utility model relates to a drying equipment technical field especially relates to a vacuum paddle desiccator.
Background
The drying equipment adopted in the prior art comprises drying processing under normal pressure environment or drying processing under vacuum environment, wherein the drying efficiency of the drying equipment under normal pressure environment is low, and the drying efficiency of the drying equipment under normal pressure environment can be improved, so that the vacuum drying technology is widely used at present. In the vacuum drying process, the utilization rate of heat directly influences the drying efficiency, so that the improvement of the utilization rate of heat of the vacuum paddle dryer is a technical focus of continuous research.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vacuum paddle desiccator to solve the technical problem who improves the heat utilization in the drying equipment.
The utility model discloses a vacuum paddle desiccator realizes like this:
a vacuum paddle dryer comprising:
the drying cylinder is horizontally arranged relative to the ground and is provided with a hollow inner cavity for containing materials; the top of the drying cylinder is connected with a vacuum pump through a vacuum pipeline;
the stirring assembly is arranged in the inner cavity of the drying cylinder along the length direction of the drying cylinder; the stirring assembly comprises two hollow stirring blades arranged in the inner cavity of the drying cylinder; the hollow stirring blade comprises a hollow shaft and a hollow blade arranged on the outer side wall of the hollow shaft; wherein, two ends of the hollow shaft are respectively suitable for extending out from the end part of the drying cylinder in the width direction; and
the transmission mechanism is suitable for driving the stirring assembly to rotate in the inner cavity of the drying cylinder so as to turn over the materials in the inner cavity of the drying cylinder; the transmission mechanism comprises two meshed transmission gears which are respectively sleeved with the parts of the hollow shafts of the two hollow stirring blades, which extend out of the outer side of one end of the drying cylinder, and a power assembly connected with one of the two transmission gears.
In the preferred embodiment of the present invention, two hollow blades on the hollow stirring paddle are arranged intermittently in a radial spiral line, and when two hollow blades rotate relatively, two hollow blades of the hollow stirring paddle are staggered with each other.
In a preferred embodiment of the present invention, an auxiliary stirring blade is disposed at the edge of the paddle.
In the preferred embodiment of the present invention, the end parts of the hollow shaft extending out of the outer side of the drying cylinder and the drying cylinder are sealed by the packing;
the packing seal comprises a packing seat sleeved on the hollow shaft and a packing gland connected with one end of the packing seat far away from the drying cylinder; and the filler seat is filled with filler.
In a preferred embodiment of the present invention, a heat preservation cylinder is further sleeved outside the drying cylinder; or
The outer side wall of the drying cylinder is coated with an insulating layer.
In a preferred embodiment of the present invention, the hollow shaft is connected with a rotary joint relative to the other end portion extending outside the drying cylinder and connected with the transmission gear;
the rotary joint is provided with a first heat carrier inlet and a first heat carrier outlet;
the side wall of the drying cylinder is also provided with at least one second heat carrier inlet and at least one second heat carrier outlet.
In a preferred embodiment of the present invention, a condenser is further disposed between the vacuum pump and the drying cylinder.
In the preferred embodiment of the present invention, a liquid recovery tank is further disposed between the condenser and the vacuum pump.
In the preferred embodiment of the present invention, the power assembly includes a first coupling connected to the transmission gear, a speed reducer connected to the first coupling, and a driving motor connected to the speed reducer through a second coupling.
In the preferred embodiment of the present invention, at least one viewing port and one feeding port are further disposed at the top of the drying cylinder; and
and a discharge hole is formed in the bottom of the drying cylinder.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a vacuum paddle desiccator, through two hollow stirring paddle leaf comes and goes the stirring to the material that drops into in a drying cylinder, and the moisture is taken out from the vacuum tube under the effect of vacuum pump, reaches the dry purpose of material. The heat carrier is acted by the hollow stirring blades, so that the heat transfer area in the unit effective volume is large, and the heat utilization rate can be improved. The heat required by the drying of the whole material is mainly provided by the blade wall surface of the hollow stirring blade, and the heat is heated by adopting a conduction heating mode, so that the heat utilization rate is greatly improved.
Drawings
Fig. 1 is a schematic view of a first perspective structure of a vacuum paddle dryer according to embodiment 1 of the present invention;
fig. 2 is a second view structural diagram of the vacuum paddle dryer according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a vacuum paddle dryer according to embodiment 1 of the present invention in a state where two hollow stirring paddles are staggered;
fig. 4 is a schematic view of the blade of two hollow stirring blades of the vacuum paddle dryer of embodiment 1 of the present invention with auxiliary stirring blades in a staggered state;
FIG. 5 is an enlarged view of portion A of FIG. 1;
fig. 6 is a schematic view of a first perspective structure of a vacuum paddle dryer according to embodiment 2 of the present invention;
FIG. 7 is an enlarged view of portion B of FIG. 1;
fig. 8 is a schematic view of a connection state structure between a pulley and a packing gland of a vacuum paddle dryer according to embodiment 2 of the present invention.
In the figure: the device comprises a drying cylinder 1, a vacuum pipeline 2, a vacuum pump 3, a hollow shaft 4, a hollow blade 5, a bearing frame 6, a roller bearing 7, a transmission gear 8, an auxiliary stirring blade 9, a packing seal 11, a heat preservation cylinder 12, a rotary joint 13, a first heat carrier inlet 15, a first heat carrier outlet 17, a second heat carrier inlet 18, a second heat carrier outlet 21, a condenser 22, a liquid recovery tank 25, a first coupler 26, a speed reducer 27, a second coupler 29, a driving motor 30, an observation port 31, a feeding port 33 and a discharging port 35.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 and 2, the present embodiment provides a vacuum paddle dryer, including: the drying cylinder 1, locate the stirring subassembly in the drying cylinder 1 to and be used for driving the rotatory drive mechanism of stirring subassembly.
The drying cylinder 1 is horizontally arranged relative to the ground, and the drying cylinder 1 is provided with a hollow inner cavity for containing materials; the top of the drying cylinder 1 is connected with a vacuum pump 3 through a vacuum pipeline 2.
The stirring component is arranged in the inner cavity of the drying cylinder 1 along the length direction of the drying cylinder 1; the stirring component comprises two hollow stirring blades arranged in the inner cavity of the drying cylinder 1; the hollow stirring blade comprises a hollow shaft 4 and a hollow blade 5 arranged on the outer side wall of the hollow shaft 4; wherein both ends of the hollow shaft 4 are adapted to protrude from the widthwise ends of the drying cylinder 1, respectively. The parts of the hollow shaft 4 which project outside the ends of the drying cylinder 1 in the width direction are each connected to the outer side wall of the drying cylinder 1 by a bearing bracket 6, and a roller bearing 7 is arranged between the hollow shaft 4 and the bearing bracket 6. The heat carrier passes through the action of the hollow stirring blade, the heat transfer area in a unit effective volume is large, the heat utilization rate can be improved, and the heat carrier circulating in the hollow stirring blade can be water vapor or liquid, such as but not limited to hot water or heat transfer oil.
The transmission mechanism is suitable for driving the stirring assembly to rotate in the inner cavity of the drying cylinder 1 so as to turn over the materials in the inner cavity of the drying cylinder 1; the transmission mechanism comprises two meshed transmission gears 8 which are respectively sleeved with the parts of the hollow shafts 4 of the two hollow stirring blades, which extend out of the outer side of one end of the drying cylinder 1, and a power assembly connected with one transmission gear 8 of the two transmission gears 8.
Referring to fig. 3, optionally, the hollow blades 5 of the two hollow stirring blades are arranged in a spiral line shape intermittently in the radial direction, and when the hollow shafts 4 of the two hollow stirring blades rotate relatively (F in fig. 3 represents the rotation direction), the hollow blades 5 of the two hollow stirring blades are staggered with each other, so that the blades can be cleaned from each other.
Referring to fig. 4, in order to improve the uniformity and thoroughness of the stirring of the material in the drying cylinder 1 by the blades, an auxiliary stirring blade 9 is disposed at the edge of the blades, where the auxiliary stirring blade 9 is fixedly connected to the blades by, for example, but not limited to, welding.
Referring to fig. 5, in order to reduce the heat loss in the drying cylinder 1 and improve the heat utilization rate, the end portions of the hollow shafts 4 of the two hollow stirring blades of the embodiment, which extend out of the outside of the drying cylinder 1, are distributed between the drying cylinder 1 and the hollow shafts through the packing seals 11, and the packing seals 11 can effectively ensure that the drying environment in the drying cylinder 1 maintains a high vacuum state for a long time compared with mechanical seals, thereby improving the drying efficiency. The packing seal 11 comprises a packing seat 11-1 sleeved on the hollow shaft 4 and a packing gland 11-2 connected with one end of the packing seat 11-1 far away from the drying cylinder 1, the packing seat 11-1 and the packing gland 11-2 both adopt L-shaped structures, one end of the packing seat 11-1 is fixedly connected with the outer side wall of the drying cylinder 1, and the packing seat 11-1 and the outer side wall of the drying cylinder 1 can be connected in a welding and fixing mode. The packing seat 11-1 is filled with packing 11-3, the packing seat 11-1 and the packing gland 11-2 are sleeved on the outer circumference of the hollow shaft 4, and the cavity formed among the packing seat 11-1, the packing gland 11-2 and the hollow shaft 4 is filled with the packing 11-3.
In consideration of reducing the loss of heat in the drying cylinder 1 through the side wall of the drying cylinder 1, the heat-insulating cylinder 12 is further sleeved outside the drying cylinder 1 in the embodiment, and the structure enables the heat in the drying cylinder 1 to be dissipated to the external environment only through the heat-insulating cylinder 12, so that the heat loss speed is greatly reduced, and the effective utilization rate of the heat in the drying cylinder 1 is also improved. As an alternative, the insulating cylinder 12 may be replaced with an insulating layer structure coated on the outer side wall of the drying cylinder 1, such as but not limited to insulating paint.
In more detail, the hollow shaft 4 is connected with a rotary joint 13 relative to the other end connected with the transmission gear 8 and extending out of the drying cylinder 1; the rotary joint 13 is provided with a first heat carrier inlet 15 and a first heat carrier outlet 17; in connection with the example of the present embodiment, a pair of second heat carrier inlets 18 and a pair of second heat carrier outlets 21 are further provided on the side wall of the drying cylinder 1.
In an alternative embodiment, a condenser 22 is also provided between the vacuum pump 3 and the drying cylinder 1. A liquid recovery tank 25 is also provided between the condenser 22 and the vacuum pump 3. In the process of drying the materials in the drying cylinder 1, moisture is pumped out from the vacuum tube under the action of the vacuum pump 3, water in the moisture is condensed by the condenser 22 in the condenser 22, the condensed water is connected into the liquid recovery tank 25 again, and waste gas is discharged by the vacuum pump 3.
More specifically, the power assembly includes a first coupling 26 connected to the transmission gear 8, a speed reducer 27 connected to the first coupling 26, and a driving motor 30 connected to the speed reducer 27 through a second coupling 29.
The top of the drying cylinder 1 is also provided with at least one observation port 31 and a feed port 33; and a discharge port 35 is arranged at the bottom of the drying cylinder 1.
The utility model discloses a specific implementation principle of vacuum paddle desiccator as follows:
the material gets into the back in the drying cylinder from the feed inlet of drying cylinder, overturns through two hollow stirring paddle team materials, stirs, constantly updates the heating interface, and the material fully heats with hollow stirring paddle blade contact back for the moisture evaporation that the material contained forms steam, and steam carries out the condensation with the moisture in the steam in getting into the condenser through the vacuum tube, flows into the liquid recovery jar, and waste gas is then discharged by the vacuum pump.
Example 2:
referring to fig. 6 to 8, on the basis of the vacuum paddle dryer of embodiment 1, cylinder assemblies are disposed on both sides of the packing gland 11-2 of the vacuum paddle dryer provided in this embodiment, each cylinder assembly includes a pulley 37 disposed on one side of the packing gland 11-2, and the pulley 37 is connected to the drying cylinder 1 through a support frame 38, that is, the support frame 38 plays a role of supporting the pulley 37. The pulley 37 is wound with a steel wire rope 39, one end of the steel wire rope 39 is connected with a cylinder 40, the other end of the steel wire rope 39 is connected with the packing gland 11-2, the steel wire rope 39 is fixedly connected with the side end, facing the packing seat 11-1, of the packing gland 11-2, the steel wire rope 39 is fixedly connected with the piston rod of the cylinder 40 upwards through the corresponding pulley 37, when the piston rod of the cylinder 40 retreats backwards (namely the cylinder 40 is in a piston rod contraction state), the packing gland 11-1 is driven to keep a compression state towards the packing seat 11-1, the packing 11-3 is always compressed, and the axial lead of the hollow shaft 4 is kept in the original position and does not sag. The cylinder 40 here can be fixed by the support frame 41 fixed to the outer wall of the drying cylinder 1, that is, the integral cylinder 40 is fixed by the support frame 41 fixed to the outer wall of the drying cylinder 1. The present embodiment functions to change the direction of the urging force of the cylinder 40 by the pulley 37 and the wire rope 39 provided between the cylinder 40 and the packing gland 11-1.
In the embodiment, the air cylinder assembly is arranged, so that the air cylinder 40 applies pressure to the filler 11-3 in the operation process of the integral vacuum paddle dryer, a gap formed between the hollow shaft 4 and the filler 11-3 is eliminated as soon as possible, external air cannot enter the inner cavity of the drying cylinder 1, and the vacuum degree of the inner cavity of the drying cylinder 1 in a continuous carrying state is ensured. Specifically, since the air cylinder 40 is always in the working state, continuous pressure can be applied to the packing 11-3, so that the packing 11-3 is always kept in the compressed state, and the vacuum state in the drying cylinder 1 is kept.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A vacuum paddle dryer, comprising:
the drying cylinder is horizontally arranged relative to the ground and is provided with a hollow inner cavity for containing materials; the top of the drying cylinder is connected with a vacuum pump through a vacuum pipeline;
the stirring assembly is arranged in the inner cavity of the drying cylinder along the length direction of the drying cylinder; the stirring assembly comprises two hollow stirring blades arranged in the inner cavity of the drying cylinder; the hollow stirring blade comprises a hollow shaft and a hollow blade arranged on the outer side wall of the hollow shaft; wherein, two ends of the hollow shaft are respectively suitable for extending out from the end part of the drying cylinder in the width direction; and
the transmission mechanism is suitable for driving the stirring assembly to rotate in the inner cavity of the drying cylinder so as to turn over the materials in the inner cavity of the drying cylinder; the transmission mechanism comprises two meshed transmission gears which are respectively sleeved with the parts of the hollow shafts of the two hollow stirring blades, which extend out of the outer side of one end of the drying cylinder, and a power assembly connected with one of the two transmission gears.
2. The vacuum paddle dryer of claim 1, wherein the hollow paddles of the two hollow stirring paddles are arranged in a radially discontinuous helical line, and the hollow paddles of the two hollow stirring paddles are staggered with each other when the hollow shafts of the two hollow stirring paddles rotate relatively.
3. The vacuum paddle dryer of claim 2, wherein the edge of the paddle is provided with an auxiliary stirring blade.
4. The vacuum paddle dryer according to claim 1, wherein the hollow shaft is sealed by a packing material between the end of the hollow shaft protruding outside the drying cylinder and the drying cylinder;
the packing seal comprises a packing seat sleeved on the hollow shaft and a packing gland connected with one end of the packing seat far away from the drying cylinder; and the filler seat is filled with filler.
5. The vacuum paddle dryer of claim 1, wherein a heat-preserving cylinder is further sleeved outside the drying cylinder; or
The outer side wall of the drying cylinder is coated with an insulating layer.
6. The vacuum paddle dryer of claim 1 wherein the hollow shaft is connected to a swivel joint with respect to the other end of the hollow shaft connected to the drive gear that protrudes outside the drying cylinder;
the rotary joint is provided with a first heat carrier inlet and a first heat carrier outlet;
the side wall of the drying cylinder is also provided with at least one second heat carrier inlet and at least one second heat carrier outlet.
7. The vacuum paddle dryer of claim 1, further comprising a condenser between the vacuum pump and the drying cylinder.
8. The vacuum paddle dryer of claim 7 wherein a liquid recovery tank is further provided between the condenser and the vacuum pump.
9. The vacuum paddle dryer of claim 1, wherein the power assembly comprises a first coupling connected to the drive gear, a speed reducer connected to the first coupling, and a drive motor connected to the speed reducer via a second coupling.
10. The vacuum paddle dryer of claim 1, wherein at least one viewing port and one feed port are further provided at the top of the drying cylinder; and
and a discharge hole is formed in the bottom of the drying cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920479815.0U CN209944933U (en) | 2019-04-10 | 2019-04-10 | Vacuum paddle dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920479815.0U CN209944933U (en) | 2019-04-10 | 2019-04-10 | Vacuum paddle dryer |
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| Publication Number | Publication Date |
|---|---|
| CN209944933U true CN209944933U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920479815.0U Active CN209944933U (en) | 2019-04-10 | 2019-04-10 | Vacuum paddle dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855412A (en) * | 2019-04-10 | 2019-06-07 | 魏俊虎 | Vacuum blade dryer |
-
2019
- 2019-04-10 CN CN201920479815.0U patent/CN209944933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855412A (en) * | 2019-04-10 | 2019-06-07 | 魏俊虎 | Vacuum blade dryer |
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Effective date of registration: 20210923 Address after: 213000 Shijiaxiang Village, Zhenglu Town, Tianning District, Changzhou City, Jiangsu Province Patentee after: Changzhou Jiashan drying equipment Co.,Ltd. Address before: 213000 room 901, unit a, building 1, Jinyu Dongjun garden, Tianning District, Changzhou City, Jiangsu Province Patentee before: Wei Junhu |