CN206094807U - Vacuum rake -type drying machine - Google Patents
Vacuum rake -type drying machine Download PDFInfo
- Publication number
- CN206094807U CN206094807U CN201621115103.3U CN201621115103U CN206094807U CN 206094807 U CN206094807 U CN 206094807U CN 201621115103 U CN201621115103 U CN 201621115103U CN 206094807 U CN206094807 U CN 206094807U
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- rotating shaft
- cylinder
- vacuum
- rake
- sodium methoxide
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Abstract
The embodiment of the utility model discloses vacuum rake -type drying machine belongs to chemical industry equipment technical field. The utility model provides a vacuum rake -type drying machine includes barrel, feeding case, discharge gate, pivot, a plurality of rake teeth, motor and a plurality of packing seal case. After the sodium methoxide powder got into first order packing seal case through the pivot, first order packing seal case can block that the sodium methoxide powder gets into the second level and gland packing later to guarantee the in close contact with between pivot and the barrel. The utility model discloses a set up the packing seal case of multilayer stacking at the kneck of pivot and barrel, it is bad to avoid the sodium methoxide powder to get into the pad lubrication that arouses when packing, cause pack with spool between the problem of dry friction appears to increase the interior vacuum of barrel, improve the drying efficiency of sodium methoxide.
Description
Technical field
The utility model is related to technical field of chemical, more particularly to a kind of vacuum rake dryer.
Background technology
Sodium methoxide is a kind of hazardous chemicals, its have corrosivity with can pyrophorisity, be mainly used in medical industry, also may be used
For being used as condensing agent, chemical reagent, catalyst of edible oil and fat process etc. in organic synthesis.Sodium methoxide in industrial use is produced
Product have two kinds of forms：Solid and liquid, solid is methyl alcohol sodium pure product, and liquid is the methanol solution of sodium methoxide.Solid sodium methylate is normal
It is white amorphous powder under normal temperature and pressure, density is 1.31g/cm3.The production technology of solid sodium methylate includes：Solid hydroxide
Sodium and methyl alcohol are prepared by a certain percentage, after stirring and dissolving, through precipitation clarification, remove solid impurity, and clear liquid pump squeezes into reaction
Top of tower is dehydrated, and refined methanol steam is added in successive reaction dehydration in tower from bottom of towe, and from bottom of towe product is obtained.The first that bottom of towe is obtained
Contain a certain amount of moisture in sodium alkoxide solid, it is more than 98% that remove solvent methyl alcohol after vacuum and heating drying need to obtain purity
Sodium methoxide solid.
Sodium methoxide drying equipment used in existing industrial production mostly is vacuum rake dryer.Existing vacuum rake
Formula drying machine includes the rotating shaft that is connected with motor of motor and the integrally formed rake teeth of rotating shaft, the cylinder of parcel rake teeth and in cylinder
The charging aperture that top is arranged.When being dried to industrial methanol sodium product using vacuum rake dryer, staff will be by
It is dried in the charging aperture that sodium methoxide is arranged from cylinder top and adds, material is added after finishing, it is dynamic that motor drives rotating shaft not stall.Turn
Axle drives rake teeth rake teeth is rotated in cylinder, and under the stirring of rake teeth, sodium methoxide is contacted with barrel wall, and sodium methoxide surface is continuous
Update.A certain amount of steam is passed through in rotating shaft, sodium methoxide is subject to the indirectly heat of steam, moisture vaporization therein, the water of gasification
Divide and taken away in time by vavuum pump.Because vacuum is higher in vacuum rake dryer, the water vapor pressure on sodium methoxide surface is dried
Power is conducive to the discharge of solvent methyl alcohol much larger than the water vapour pressure of evaporating space in drying machine housing, and so as to reach mesh is dried
's.
It is many between existing vacuum rake dryer rotating shaft and cylinder to be tightly connected using gland sealed mode.Filler is filled
After entering packing cavity, Jing gland screws are compressed axially to it, when axle and filler have relative motion, due to the plasticity of filler,
Make it produce radial load, and be in close contact with axle.At the same time, the lubricant for impregnating in filler is extruded, between contact surface
Form oil film.Because contact condition is not especially uniform, just there is " boundary lubrication " state, referred to as " bearing in contact site
Effect "；And not in contact with recess form little oil groove, have a thicker oil film, contact site constitute with non-contact portion position together with do not advise
Labyrinth then, plays a part of to prevent liquid from flowing leakage, presents " labyrinth effect ".However, in sodium methoxide dry run, vacuum rake type
When bearing in drying machine is rotated, sodium methoxide powder can be entered in filler, cause the insufficient lubrication of filler, cause oil film to interrupt,
Cause occur dry friction between filler and axle, cause sealing between axle and cylinder poor, so as to cause vacuum in cylinder to decline,
Affect the drying efficiency of sodium methoxide.
Utility model content
The utility model provide a kind of vacuum rake dryer, to solve prior art in vacuum rake dryer sealing
Property is poor, and vacuum is low in cylinder, the low problem of sodium methoxide drying efficiency.
In order to solve above-mentioned technical problem, the utility model discloses following technical scheme：
A kind of vacuum rake dryer, including cylinder, material feeding box, discharging opening, rotating shaft, multiple rake teeths, motor fill out with multiple
Material seal box, wherein, cylinder outside is fixed with material feeding box and discharging opening；The axis line position that rotating shaft is fixed in cylinder, rotating shaft
Through cylinder；Multiple rake teeths are fixed on rotating shaft outside；One end of rotating shaft is connected with motor by conveyer belt；Filling sealing tank
The interface of connection rotating shaft and cylinder, filling sealing tank includes end cover and filler casing, and end cover is fixed on stuffing box
One end of body, the end cover of multiple filling sealing tanks is fixedly connected with filler casing.
Preferably, material feeding box includes the head tank that multiple superpositions are arranged, and head tank includes tank body, seal and vacuum valve；
Tank body includes charging aperture and feed opening, and vacuum valve is fixed on feed opening, and seal is fixed between vacuum valve and feed opening, charging
It is fixedly connected by seal between tank and head tank, is fixedly connected by seal between head tank and cylinder.
Preferably, the quantity of material feeding box is two, and two material feeding box are individually fixed in the two ends of cylinder.
Preferably, one end of rake teeth is triangular prism structure, and the other end of rake teeth is welded in rotating shaft.
Preferably, rake teeth is uniformly distributed in rotating shaft.
Preferably, rotating shaft is cylindrical-shaped structure with cylinder, and the diameter of rotating shaft is 1 than scope with the diameter of cylinder：5 to 1：
7。
Preferably, rotating shaft is alloy rotating shaft.
A kind of vacuum rake dryer provided from above technical scheme, the utility model, including cylinder, charging
Case, discharging opening, rotating shaft, multiple rake teeths, motor and multiple filling sealing tanks.The interface of filling sealing tank connection rotating shaft and cylinder
Place, filling sealing tank includes end cover and filler casing, and end cover is fixed on one end of filler casing, multiple packing seals
The end cover of case is fixedly connected with filler casing.After sodium methoxide powder enters first order filling sealing tank by rotating shaft, the
One-level filling sealing tank can stop that sodium methoxide powder enters the second level and stuffing box afterwards, so as to ensure rotating shaft and cylinder
Between close contact.The utility model arranges the filling sealing tank of multiple-layer stacked by the interface in rotating shaft and cylinder, can
The pad lubrication caused during avoiding sodium methoxide powder into filler is bad, causes occur asking for dry friction between filler and axle
Topic, so as to increase vacuum in cylinder, improves the drying efficiency of sodium methoxide.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, for ordinary skill people
For member, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
A kind of vacuum rake dryer structural representation that Fig. 1 is provided for the utility model embodiment；
The harrow tooth structure schematic diagram that Fig. 2 is provided for the utility model embodiment；
Illustrate：
1- cylinders, 2- material feeding box, 3- discharging openings, 4- rotating shafts, 5- rake teeths, 6- motors, 7- filling sealing tanks, 21- tank bodies,
22- seals, 23- vacuum valves, 71- end covers, 72- filler casings.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of the utility model, rather than the embodiment of whole.Based on the utility model
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, should all belong to the scope of the utility model protection.
A kind of vacuum rake dryer structural representation that Fig. 1 is provided for the utility model embodiment, as seen from Figure 1, this
Utility model provide vacuum rake dryer include cylinder 1, material feeding box 2, discharging opening 3, rotating shaft 4, multiple rake teeths 5, motor 6 with
Multiple filling sealing tanks 7, wherein, the outside of cylinder 1 is fixed with material feeding box 2 and discharging opening 3；The axis that rotating shaft 4 is fixed in cylinder 1
Line position, rotating shaft 4 runs through cylinder 1；Multiple rake teeths 5 are fixed on the outside of rotating shaft 4；One end of rotating shaft 4 is passed with motor 6 by conveyer belt
Dynamic connection；The interface of the connection rotating shaft 4 of filling sealing tank 7 and cylinder 1, filling sealing tank 7 includes end cover 71 and stuffing box
Body 72, end cover 71 is fixed on one end of filler casing 72, end cover 71 and the filler casing 72 of multiple filling sealing tanks 7
It is fixedly connected.In the present embodiment, the quantity of filling sealing tank 7 is 4, after two filling sealing tanks 7 join end to end, is fixed on such as figure
The interface of rotating shaft 4 and cylinder 1 shown in 1, respectively there are two end to end fillers at the two ends of rotating shaft 4 with the interface of cylinder 1
Seal box 7.The presence of multiple filling layers seal box 7, can make after sodium methoxide powder enters first order filling sealing tank, the first order
Filling sealing tank can stop that sodium methoxide powder enters the second level and stuffing box afterwards, so as to ensure between rotating shaft and cylinder
Close contact.The utility model arranges the filling sealing tank of multiple-layer stacked by the interface in rotating shaft and cylinder, can keep away
The pad lubrication caused when exempting from sodium methoxide powder into filler is bad, the problem for causing to occur dry friction between filler and axle, from
And increase vacuum in cylinder, improve the drying efficiency of sodium methoxide.
In the present embodiment, material feeding box 2 includes the head tank that multiple superpositions are arranged, and head tank includes tank body 21, seal 22
With vacuum valve 23, wherein, tank body 21 includes charging aperture and feed opening, and vacuum valve 23 is fixed on the feed opening of tank body 21, seal
22 are fixed between vacuum valve 23 and feed opening, are fixedly connected by seal 22 between head tank and head tank, head tank with
It is fixedly connected by seal 22 between cylinder 1.
In the present embodiment, head tank quantity is 2.Head tank is hollow cylinder, is led between head tank and head tank
Cross seal 22 to connect.The form of seal 22 has various, and the seal 22 that the present embodiment is selected is Wellendichtring 22, is adopted
Bellows seal (material filling type sealing) technology.Seal 22 is main with flexible member, cloth inserted rubber strip, pressing plate, location-plate, fastening
Part etc. is constituted, and is fixed on head tank edge, and the screen resilience of the resilient foam blocks wrapped up by rubber strip is compensating charging tank
The micro change of distance between 21 and tank body 21, between tank body 21 and vacuum valve 23 and between head tank and cylinder 1, it is ensured that enter
Effective sealing of batch can and cylinder 1.Vacuum valve 23 selects manual light gliding style vacuum valve 23.
Staff can be first opened at the ground floor head tank feed opening contacted with cylinder 1 when to filler in cylinder 1
Vacuum valve 23, after air pressure balance in ground floor head tank and cylinder 1, close ground floor vacuum valve 23, open the second layer true
Empty valve 23.After ground floor vacuum valve 23 and the air pressure balance of second layer vacuum valve 23, head tank top can be opened, to head tank
In insert sodium methoxide.The setting of double-deck head tank, can avoid the first caused with external atmosphere pressure imbalance because of air pressure in cylinder 1
Sodium alkoxide powder splashes, and impact staff's is healthy.During filler, staff inserts first in two-layer head tank respectively
Sodium alkoxide, in order opens the vacuum valve 23 at ground floor head tank feed opening after the completion of filler, carries out first time blanking.The
After the completion of blanking, then ground floor head tank vacuum valve 23 is closed, open the vacuum valve 23 that the second layer feeds pot bottom, treated
Sodium methoxide in second layer head tank is entered after ground floor head tank, closes second layer vacuum valve 23, opens ground floor vacuum valve
23, complete blanking.The head tank that the utility model passes through the setting multiple-layer stacked in material feeding box 2, it is possible to achieve filler process
Many secondary clearing fillers, filler process middle cylinder body 1 keeps closed environment with material feeding box 2, improves vacuum in cylinder, is conducive to sodium methoxide
The raising of drying efficiency.
In the present embodiment, rotating shaft 4 is hollow structure, and cylinder 1 is two-layer hollow structure.When vacuum rake dryer works,
Heat needed for being dried mainly is provided by shaft and the chuck of cylinder 1.When the sodium methoxide of required drying enters cylinder through material feeding box 2
After body 1, staff will add thermal medium such as vapor to be passed through in the hollow structure of the hollow structure of rotating shaft 4 and cylinder 1.Heat
Distributed to the sodium methoxide in cylinder 1 by cylinder 1 and rotating shaft 4.Moisture in wet sodium methoxide is heated vaporization, the moisture quilt being vaporized with
Vacuum system is taken away in time.With the continuous rotation of rake teeth 5, contact of the sodium methoxide with heating surface is constantly updated, and sodium methoxide is uniform
It is heated, and then completes dry run.Because charging aperture has multilayer material feeding box 2, the sealing between charging aperture and cylinder 1 is strong,
Vacuum is high in cylinder, is dried water vapour pressure of the sodium methoxide surface of material water vapour pressure much larger than evaporating space in cylinder 1,
Internal moisture and surface moisture in sodium methoxide is more easy to discharge.Being provided with for multilayer material feeding box 2 is carried beneficial to vacuum in cylinder 1
Height, the rate of drying of sodium methoxide is also improved.
The quantity of material feeding box 2 is two, and two material feeding box 2 are individually fixed in the two ends of cylinder 1.Existing vacuum rake type is done
One stuffing box is often only set in dry machine, and sodium methoxide is entered after cylinder 1 by single stuffing box can the aggregation in cylinder 1.Turn
Sodium methoxide skewness when axle 4 is rotated in cylinder 1, is unfavorable for the thermally equivalent of sodium methoxide.Fix respectively at the two ends of cylinder 1
Two material feeding box 2 are conducive to sodium methoxide being uniformly distributed in cylinder 1.If arranging two or more material feeding box 2, sodium methoxide is in cylinder
Distribution can evenly in 1, but filler process is then complex, is unfavorable for the raising of production efficiency.
The harrow tooth structure schematic diagram that Fig. 2 is provided for the utility model embodiment, from Figure 2 it can be seen that one end of rake teeth 5 is Rhizoma Sparganii
Rod structure, the uniform upset and stirring that are provided with beneficial to sodium methoxide in cylinder 1 of triangular prism structure, improves drying efficiency.
The high mechanical strength of rake teeth 5 of triangular prism structure, rake teeth 5 is not susceptible to bending with fracture in dry run.The other end of rake teeth 5
It is fixed in rotating shaft 4 by welding procedure so that the combination of rake teeth 5 and rotating shaft 4 is more firm.Rake teeth 5 uniformly divides in rotating shaft 4
Cloth, is conducive to the uniform upset of sodium methoxide.
Rotating shaft 4 is cylindrical-shaped structure with cylinder 1, and the diameter of rotating shaft 4 is 1 than scope with the diameter of cylinder 1：5 to 1：7.
The high mechanical strength of rotating shaft 4 of overstriking, is not susceptible to flexural deformation, it is ensured that production safety in dry run.Additionally, in overstriking
Gas flow in pony axle 4 is big, is conducive to heat transfer and improves the drying efficiency of sodium methoxide.
Rotating shaft 4 is alloy rotating shaft, and material is 20Cr steel, and wear resistance is strong.What alloy rotating shaft 4 was produced in whipping process
Chip is few, and sodium methoxide solid will not be polluted.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that a series of process, method, article or equipment including key elements not only includes those
Key element, but also including other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in the process including key element, method, article or equipment.
The above is only specific embodiment of the present utility model, make skilled artisans appreciate that or realizing this practicality
It is new.Various modifications to these embodiments will be apparent to one skilled in the art, defined herein
General Principle can in other embodiments realize in the case of without departing from spirit or scope of the present utility model.Therefore,
The utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and new
The consistent most wide scope of clever feature.
The above is only specific embodiment of the present utility model, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of vacuum rake dryer, it is characterised in that including cylinder (1), material feeding box (2), discharging opening (3), rotating shaft (4),
Multiple rake teeths (5), motor (6) and multiple filling sealing tanks (7), wherein,
Cylinder (1) outside is fixed with the material feeding box (2) and discharging opening (3)；The rotating shaft (4) is fixed on the cylinder
(1) the axis line position in, the rotating shaft (4) is through the cylinder (1)；Multiple rake teeths (5) are fixed on the rotating shaft (4)
Outside；One end of the rotating shaft (4) is connected with the motor (6) by conveyer belt；
Described filler seal box (7) connects the interface of the rotating shaft (4) and cylinder (1), and described filler seal box (7) is including close
End-blocking lid (71) and filler casing (72), the end cover (71) is fixed on one end of described filler casing (72), described many
The end cover (71) of individual filling sealing tank (7) is fixedly connected with described filler casing (72).
2. vacuum rake dryer according to claim 1, it is characterised in that the material feeding box (2) is including multiple superpositions
The head tank of setting, the head tank includes tank body (21), seal (22) and vacuum valve (23)；The tank body (21) include into
Material mouth and feed opening, the vacuum valve (23) is fixed on the feed opening, and the seal (22) is fixed on the vacuum valve
(23) between the feed opening, be fixedly connected by the seal (22) between the head tank and head tank, it is described enter
It is fixedly connected by the seal (22) between batch can and the cylinder (1).
3. vacuum rake dryer according to claim 1, it is characterised in that the quantity of the material feeding box (2) is two,
Two material feeding box (2) are individually fixed in the two ends of the cylinder (1).
4. vacuum rake dryer according to claim 1, it is characterised in that one end of the rake teeth (5) is triangular prism
Structure, the other end of the rake teeth (5) is welded in the rotating shaft (4).
5. vacuum rake dryer according to claim 1, it is characterised in that the rake teeth (5) is in the rotating shaft (4)
It is uniformly distributed.
6. vacuum rake dryer according to claim 1, it is characterised in that the rotating shaft (4) is circle with cylinder (1)
Column structure, the diameter of the rotating shaft (4) is 1 than scope with the diameter of the cylinder (1)：5 to 1：7.
7. vacuum rake dryer according to claim 1, it is characterised in that the rotating shaft (4) is alloy rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621115103.3U CN206094807U (en) | 2016-10-12 | 2016-10-12 | Vacuum rake -type drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621115103.3U CN206094807U (en) | 2016-10-12 | 2016-10-12 | Vacuum rake -type drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206094807U true CN206094807U (en) | 2017-04-12 |
Family
ID=60414068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621115103.3U Active CN206094807U (en) | 2016-10-12 | 2016-10-12 | Vacuum rake -type drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206094807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317810A (en) * | 2018-03-30 | 2018-07-24 | 淮阴师范学院 | Integral type powder mixing Minton dryer and powder mixed drying system |
| CN112337111A (en) * | 2020-09-18 | 2021-02-09 | 安徽金邦医药化工有限公司 | A desicator for producing sodium methoxide |
-
2016
- 2016-10-12 CN CN201621115103.3U patent/CN206094807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317810A (en) * | 2018-03-30 | 2018-07-24 | 淮阴师范学院 | Integral type powder mixing Minton dryer and powder mixed drying system |
| CN112337111A (en) * | 2020-09-18 | 2021-02-09 | 安徽金邦医药化工有限公司 | A desicator for producing sodium methoxide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vacuum rake dryer Effective date of registration: 20220726 Granted publication date: 20170412 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: NINGXIA BEST PHARMACEUTICAL CHEMICAL CO.,LTD. Registration number: Y2022640000014 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230713 Granted publication date: 20170412 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: NINGXIA BEST PHARMACEUTICAL CHEMICAL CO.,LTD. Registration number: Y2022640000014 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vacuum rake dryer Effective date of registration: 20230803 Granted publication date: 20170412 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: NINGXIA BEST PHARMACEUTICAL CHEMICAL CO.,LTD. Registration number: Y2023640000026 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |