CN212482056U

CN212482056U - Stirring shaft of energy-saving rake dryer and vacuum rake dryer

Info

Publication number: CN212482056U
Application number: CN202020661234.1U
Authority: CN
Inventors: 郭海林; 宋双城; 崔北松
Original assignee: Changzhou Longyao Drying Equipment Co ltd
Current assignee: Changzhou Longyao Drying Equipment Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-02-05
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses an energy-saving rake dryer (mixing) shaft and vacuum rake dryer, relate to desiccator technical field, it includes dry barrel, dry barrel upside is equipped with the feed inlet, dry barrel downside is equipped with the discharge gate, dry barrel one side is equipped with drive assembly, still include rake dryer (mixing) shaft, the (mixing) shaft includes pivot and a plurality of stirring vane, the inside cavity of stirring vane and with the inside UNICOM of pivot, the pivot is rotated with dry barrel and is connected, the pivot is rotated by drive assembly control, drive assembly's one end is kept away from in the pivot is connected with rotary joint, rotary joint keeps away from the one end of pivot and is equipped with the heat source import, the pivot lateral wall is equipped with the heat source. The utility model provides a contact area of stirring rake and material less, the material can not obtain abundant stirring to the drying rate of wet material is slow and drying effect is also not ideal, and then the higher problem of power consumption, has realized when the drying, and stirring vane contact area is big, thereby effectively improves drying rate, and then reduces the effect of energy consumption.

Description

Stirring shaft of energy-saving rake dryer and vacuum rake dryer

Technical Field

The utility model belongs to the technical field of the desiccator technique and specifically relates to an energy-saving rake dryer (mixing) shaft and vacuum rake dryer are related to.

Background

The vacuum rake dryer is an apparatus for removing moisture from the contents of a packaging container by evacuating the air from the inside of the container to a predetermined degree of vacuum, and is designed to dry heat-sensitive, easily decomposable and oxidizable substances, particularly, to rapidly dry some of the complex-composition articles.

Chinese patent with publication number CN208398553U discloses a vacuum rake dryer, including drying cylinder, it has the pivot to run through in the drying cylinder, and the pivot is located the outside part of drying cylinder and connects driving motor, and lies in the inside connection stirring rake of drying cylinder in the pivot, separate for two drying chambers through intermediate bottom in the drying cylinder, drying cylinder is located the drying chamber outside and sets up heat conduction chamber, and heat conduction chamber upper and lower side sets up conduction oil export and conduction oil import, still sets up the filling opening on the drying chamber, drying cylinder is located the upper and lower division of intermediate bottom and sets up feeding takeover and discharge gate respectively, and feeding takeover and discharge gate all communicate with drying chamber, connect the inlet pipe on the feeding takeover, inlet pipe one side sets up the evacuation pipe of connecting vacuum generator.

The above prior art solutions have the following drawbacks: the heat source can be introduced into the stirring rake during drying, the stirring rake consists of a rod-shaped object and a plate-shaped object fixed to one end of the rod-shaped object, the contact area of the whole stirring rake and the materials is small due to the existence of the rod-shaped object, the materials cannot be fully stirred, and therefore the drying speed of the wet materials is low, the drying effect is not ideal, and further the energy consumption is high.

SUMMERY OF THE UTILITY MODEL

According to the not enough that prior art exists, one of the purposes of the utility model is to provide energy-saving harrow formula desiccator (mixing) shaft, have when the drying, stirring vane area of contact is big to effectively improve drying speed, and then reduce the effect of energy consumption.

The above technical purpose of the present invention can be achieved by the following technical solutions:

energy-saving rake dryer (mixing) shaft, including the pivot, the pivot is the cavity structure, be provided with a plurality of stirring vane in the pivot, stirring vane inside cavity and with the inside UNICOM of pivot.

Through adopting above-mentioned technical scheme, after letting in heat source medium in pivot and the stirring vane, because stirring vane directly links with the pivot, replaced the linkage effect of the shaft-like thing of stirring rake, compare in the increase of the dry area of stirring rake to can carry out more complete drying to the material, effectively improve drying efficiency, and then reduce the energy consumption.

The present invention may be further configured in a preferred embodiment as: and the stirring blades are arranged in a staggered manner along the length direction of the rotating shaft.

Through adopting above-mentioned technical scheme, stirring vane's staggered arrangement can make the stirring more abundant, and drying effect is more even.

The present invention may be further configured in a preferred embodiment as: stirring vane is fan-shaped, stirring vane's two straight flange symmetries are equipped with two flow distribution plates, two flow distribution plate and stirring vane integrated into one piece, the thickness of flow distribution plate reduces towards the direction of keeping away from stirring vane gradually.

Through adopting above-mentioned technical scheme, when the material takes place to pile up, the flow distribution plate can be with piling up material dispersion, flow distribution plate edge part when the stirring reduced with the area of contact of material, stirring resistance when reducing the stirring to reduce the energy consumption.

The present invention may be further configured in a preferred embodiment as: all be equipped with a plurality of baffles in the stirring blade, two sides vertical fixation that baffle and stirring blade paralleled.

Through adopting above-mentioned technical scheme, stirring vane's intensity can be strengthened to the baffle, reduces stirring vane fracture's when the stirring possibility.

The present invention may be further configured in a preferred embodiment as: stirring vane sets up with the pivot axis is perpendicular, stirring vane keeps away from one side slope of pivot and installs the scraper blade.

Through adopting above-mentioned technical scheme, when stirring, can strike off the material of adhesion on the stirring intracavity wall, reduce the waste of material, play the effect of clearance.

The present invention may be further configured in a preferred embodiment as: one side of the scraper far away from the rotating shaft is provided with a pointed conical plate, and the pointed conical plate is in a pointed conical shape.

Through adopting above-mentioned technical scheme, the pointed cone board can make the adhesion when carrying out the work of striking off of the material of dry barrel inside wall, and the resistance diminishes to the material that makes the adhesion of dry barrel inside wall strikes off cleaner and reduces the energy consumption.

The present invention may be further configured in a preferred embodiment as: the pointed conical plate is sleeved outside the scraper, waist-shaped grooves are formed in two side walls of the pointed conical plate, bolts with one ends penetrating through the waist-shaped grooves are in threaded connection with the scraper, and nuts abutted against the side walls of the pointed conical plate are in threaded connection with one ends of the bolts penetrating through the waist-shaped grooves.

Through adopting above-mentioned technical scheme, in the installation, establish sharp conical plate cover outside the scraper blade, pass the waist type groove with the bolt and install on the scraper blade lateral wall, adjust sharp conical plate and dry barrel inner wall to suitable distance through waist type groove at last, the nut of screwing makes the position relatively fixed of sharp conical plate and scraper blade to can strike off the material of dry barrel inner wall adhesion as far as possible, effectual improvement clearance effect.

Another object of the utility model is to provide a vacuum rake dryer has when the drying, and stirring vane area of contact is big to effectively improve drying rate, and then reduce the effect of energy consumption.

the utility model provides a vacuum rake dryer, includes dry barrel, dry barrel upside is equipped with the feed inlet, dry barrel downside is equipped with the discharge gate, dry barrel one side is equipped with drive assembly, still includes foretell rake dryer (mixing) shaft, the pivot is rotated with dry barrel and is connected, the pivot is rotated by drive assembly control, drive assembly's one end is kept away from in the pivot is connected with rotary joint, rotary joint is located dry barrel outside, rotary joint keeps away from the one end of pivot and is equipped with the heat source import, the pivot lateral wall is equipped with the heat source export.

Through adopting above-mentioned technical scheme, steam gets into the (mixing) shaft through rotary joint from steam inlet, and the (mixing) shaft rotates under driving motor's control, can make material and stirring vane's area of contact increase to the stirring that makes the material is more abundant, and is more even, and then improves work efficiency and reduces the energy consumption.

The present invention may be further configured in a preferred embodiment as: the inclined direction of the scraper blade faces the discharge hole.

Through adopting above-mentioned technical scheme, the scraper blade slope is towards the discharge gate, can rotate in the pivot and scrape the material and take out dry barrel with the material of scraping down.

The present invention may be further configured in a preferred embodiment as: the distance between one side of the tapered plate far away from the scraper and the inner wall of the drying cylinder is 0-3 mm.

Through adopting above-mentioned technical scheme, reduced the possibility of sharp awl board with dry barrel inside wall butt to reduced the possibility of damaging dry barrel when scraping off the material.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the plurality of stirring blades, the effects of uniform stirring, high drying efficiency and energy conservation can be achieved;

2. through the setting of point awl board and scraper blade, can play the installation convenient, strike off clean, prevent to damage the effect of dry barrel.

Drawings

Fig. 1 is a schematic view of the overall structure for embodying embodiment 1.

FIG. 2 is a schematic view showing the structure of an internal partition plate of a stirring vane used in embodiment 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic view of the overall structure for embodying embodiment 2.

FIG. 5 is a schematic view for showing the internal structure of a drying cylinder and a jacket in example 2.

In the figure, 1, drying a cylinder; 11. a feed inlet; 12. a discharge port; 121. a ball valve; 13. a vacuum port; 131. a vacuum assembly; 1311. a condenser; 1312. a buffer tank; 1313. a vacuum pump; 2. a stirring shaft; 21. a rotating shaft; 22. a stirring blade; 221. a flow distribution plate; 222. a first stirring blade; 223. a second stirring blade; 23. a partition plate; 24. a squeegee; 241. a waist-shaped groove; 25. a tapered plate; 251. a bolt; 252. a nut; 3. a drive assembly; 31. a speed reducer; 32. a belt pulley; 33. a motor; 4. a coupling; 5. a rotary joint; 51. a heat source inlet; 52. a heat source outlet; 6. a jacket; 61. a heat exchange medium inlet; 62. and a heat exchange medium outlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, the stirring shaft of the energy-saving rake dryer disclosed by the present invention comprises a rotating shaft 21, stirring blades 22 and a scraper 24. The rotating shaft 21 and the stirring blades 22 are both in a cavity structure, the stirring blades 22 are welded with the rotating shaft 21, the rotating shaft 21 and the stirring blades 22 are communicated with each other, and a heat source is introduced into the rotating shaft 21 and the stirring blades 22 during use. The scraper 24 is shaped like Contraband, the scraper 24 is obliquely welded on the arc side of the stirring blade 22 far away from the rotating shaft 21, the groove wall formed by the scraper 24 is respectively abutted against the two parallel end faces of the stirring blade 22, and the side of the scraper 24 far away from the stirring blade 22 is arc-shaped and can be used for removing the residual materials adhered to the inner wall of the stirring cavity of the rake dryer.

As shown in fig. 1, the stirring blade 22 is fan-shaped, the stirring blade 22 includes a plurality of first stirring blades 222 and second stirring blades 223, the first stirring blades 222 are uniformly arrayed along the length direction of the rotating shaft 21, the first stirring blades 222 are symmetrical with respect to the center line of the rotating shaft 21, the second stirring blades 223 are located between the adjacent first stirring blades 222, the second stirring blades 223 are symmetrical with respect to the center line of the rotating shaft 21, the first stirring blades 222 and the second stirring blades 223 are vertically staggered, and the stirring effect and the drying effect can be effectively improved.

As shown in fig. 1, two straight edges of the stirring blade 22 are symmetrically provided with the integrally formed flow distribution plate 221, the cross section of the flow distribution plate 221 is in an isosceles triangle shape, the thickness of the flow distribution plate 221 gradually decreases toward the direction away from the stirring blade 22, the edge part of the flow distribution plate can be used for reducing the contact area with the material during stirring, and the stirring resistance is reduced accordingly, so that the material can be more easily dispersed.

As shown in fig. 2, three partition plates 23 are welded in the stirring blade 22, the three partition plates 23 are perpendicular to two side surfaces of the stirring blade 22, the length direction of the three partition plates 23 is the same as the radial direction of the stirring blade 22, the three partition plates 23 divide the inner cavity of the stirring blade 22 into four regions uniformly, and when drying, the heat source introduced into the inner part can be distributed more uniformly, so that the drying effect is more excellent.

As shown in fig. 3, a tapered pointed conical plate 25 is sleeved on one side of the scraper 24 away from the stirring blade 22, waist-shaped grooves 241 are formed in two side walls of the pointed conical plate 25, two parallel sides of the scraper 24 are in threaded connection with bolts 251 with diameters matched with the waist-shaped grooves 241, and the bolts 251 penetrate through the waist-shaped grooves 241 and are in threaded connection with nuts 252. After the nut 252 is tightened, it abuts against the side wall of the tapered plate 25 to fix the positions of the tapered plate 25 and the scraper 24 relative to each other.

Example 2:

a vacuum rake dryer is shown in fig. 4 and comprises a drying cylinder 1, wherein a rake dryer stirring shaft 2 in embodiment 1 is connected in the drying cylinder 1 in a rotating mode, two ends of a rotating shaft 21 penetrate out of the drying cylinder 1, and a driving assembly 3 used for controlling the rotating shaft 21 to rotate is arranged on one side of the drying cylinder 1. The driving assembly 3 comprises a speed reducer 31 and a motor 33, the output end of the speed reducer 31 is coaxially connected with the rotating shaft 21 through a coupler 4, a belt pulley 32 is sleeved on a shaft on one side of the speed reducer 31, which is far away from the coupler 4, and the motor 33 is in transmission with the belt pulley 32 through a belt. The end of the rotating shaft 21 far away from the driving component 3 is connected with a rotary joint 5, the end of the rotary joint 5 far away from the rotating shaft 21 is connected with a flange of a heat source inlet 51, and a heat source outlet 52 is integrally formed on the side wall of the rotary joint 5. The side wall of the drying cylinder 1 is sleeved with a jacket 6, the upper side of the jacket 6 is provided with a heat exchange medium inlet 61, and the lower side of the jacket 6 is provided with a heat exchange medium outlet 62.

As shown in fig. 4 and 5, the upper side of the drying cylinder 1 is provided with a feed port 11 and a vacuum port 13, and the lower middle part of the drying cylinder 1 is provided with a discharge port 12. The vacuum component 131 is arranged on one side of the drying cylinder 1, the vacuum component 131 comprises a condenser 1311, a buffer tank 1312 and a vacuum pump 1313 which are connected in sequence, the condenser 1311, the buffer tank 1312 and the vacuum pump 1313 are connected through pipelines, and the inlet end of the condenser 1311 is connected with the vacuum port 13 through a flange. The scrapers 24 are divided into two groups, the two groups of scrapers 24 are symmetrical about the center line of the discharge port 12, the inclined directions of the scrapers 24 face the discharge port 12, materials scraped by the scrapers 24 can be conveyed to the position of the discharge port 12 in the rotating process of the rotating shaft 21, so that discharging is completed, and the discharge port 12 is provided with a ball valve 121 to control a switch for discharging.

As shown in fig. 5, in order to prevent the taper plate 25 from damaging the drying cylinder 1 when scraping off the material adhered to the inner side wall of the drying cylinder 1, the distance between the side of the taper plate 25 facing the inner side wall of the drying cylinder 1 and the inner side wall of the drying cylinder 1 is preferably 2 mm. When the installation, loosen nut 252, the staff drags point awl board 25, adjusts the mounted position, when point awl board 25 is located apart from the position of 1 inside wall 2mm of dry barrel, screws nut 252, makes nut 252 and point awl board 25 lateral wall butt to it is more convenient to make the installation, and the distance between point awl board 25 and the 1 inside wall of dry barrel realizes adjustably. Meanwhile, the distance between the pointed conical plate 25 and the inner wall of the drying cylinder body 1 is short, so that the pointed conical plate 25 scrapes materials more thoroughly, and a better cleaning effect is achieved.

The implementation principle of the above embodiment is as follows: when drying, the material gets into dry barrel 1 from feed inlet 11, can let in conduction oil or steam in the heat source import 51, get into pivot 21 behind the rotary joint 5 of flowing through, get into sectorial stirring vane 22 at last, disperse through baffle 23, conduction oil or steam get into from heat transfer medium import 61 simultaneously and press from both sides cover 6, the heat carries out indirect heating to the material through pressing from both sides cover 6 and (mixing) shaft 2, moisture in the wet material is heated the vaporization, the moisture of vaporization is in time taken away by vacuum component 131, can dry, the discharge gate 12 discharge can be followed to final dry material. The scraper 24 can discharge the materials scraped from the inner side wall of the drying cylinder 1 through the discharge hole 12.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Energy-saving rake dryer (mixing) shaft, including pivot (21), pivot (21) are cavity structure, its characterized in that: a plurality of stirring blades (22) are arranged on the rotating shaft (21), and the stirring blades (22) are hollow and are communicated with the inside of the rotating shaft (21); the stirring blade (22) is fan-shaped, two flow distribution plates (221) are symmetrically arranged on two straight edges of the stirring blade (22), the two flow distribution plates (221) and the stirring blade (22) are integrally formed, and the thickness of each flow distribution plate (221) is gradually reduced towards the direction far away from the stirring blade (22); a plurality of partition plates (23) are arranged in the stirring blades (22), and two parallel side surfaces of the partition plates (23) and the stirring blades (22) are vertically fixed.

2. The stirring shaft of the energy-saving rake dryer according to claim 1, wherein: the stirring blades (22) are arranged in a staggered mode along the length direction of the rotating shaft (21).

3. The stirring shaft of the energy-saving rake dryer according to claim 2, wherein: stirring vane (22) and pivot (21) axis vertical setting, stirring vane (22) keep away from one side slope of pivot (21) and install scraper blade (24).

4. The stirring shaft of the energy-saving rake dryer according to claim 3, wherein: one side of the scraper (24) far away from the rotating shaft (21) is provided with a pointed conical plate (25), and the pointed conical plate (25) is in a pointed conical shape.

5. The stirring shaft of the energy-saving rake dryer according to claim 4, wherein: outside scraper blade (24) was located to point awl board (25) cover, point awl board (25) both sides wall is opened there are waist type groove (241), threaded connection has bolt (251) that waist type groove (241) were worn out to one end on the scraper blade, the one end threaded connection that waist type groove (241) was worn out in bolt (251) has nut (252) with point awl board (25) lateral wall butt.

6. The utility model provides a vacuum rake dryer, includes drying barrel (1), drying barrel (1) upside is equipped with feed inlet (11), drying barrel (1) downside is equipped with discharge gate (12), drying barrel (1) one side is equipped with drive assembly (3), its characterized in that: the harrow type dryer stirring shaft (2) as claimed in claim 4 or 5, wherein the rotating shaft (21) is rotatably connected with the drying cylinder body (1), the rotating shaft (21) is controlled by the driving component (3) to rotate, one end of the rotating shaft (21) far away from the driving component (3) is connected with a rotary joint (5), the rotary joint (5) is positioned outside the drying cylinder body (1), one end of the rotary joint (5) far away from the rotating shaft (21) is provided with a heat source inlet (51), and the side wall of the rotating shaft (21) is provided with a heat source outlet (52).

7. A vacuum rake dryer as set forth in claim 6, wherein: the inclined direction of the scraper (24) faces the discharge hole (12).

8. A vacuum rake dryer as claimed in claim 7, wherein: the distance between one side of the tapered plate (25) far away from the scraper (24) and the inner wall of the drying cylinder body (1) is 0-3 mm.