CN210532917U - Drying device for granular petroleum asphalt - Google Patents

Abstract

The utility model relates to a pitch drying device's technical field specifically is a drying device for graininess petroleum pitch for the drying device who solves current graininess pitch does not possess the problem of screening function. The utility model discloses an in the vertical telescopic machanism in a left side, the outer circle of drying and an interior stoving section of thick bamboo, install the closing plate that can seal the outer circle of drying in vertical direction in the outer circle of drying, the side-mounting of the vertical telescopic machanism in a left side has interior motor, interior pivot is connected to interior motor, rabbling mechanism in installing in the interior pivot, the heating pipe is all installed with the lower part of the outer circle of drying on the inner wall of an interior stoving section of thick bamboo, a plurality of screening holes have still been opened to the lower part of an interior stoving section of thick bamboo. The utility model discloses in the graininess pitch that the well diameter is less than the screening hole can fall into outer stoving circle through the screening hole, this drying equipment can carry out simple screening to graininess pitch when drying to graininess pitch to this drying equipment's function has been increased.

Description

Drying device for granular petroleum asphalt

Technical Field

The utility model relates to a pitch drying device technical field, more specifically relate to a drying device for graininess petroleum pitch.

Background

The asphalt can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt. The petroleum asphalt is the residue after distillation of crude oil, and is liquid, semi-solid or solid at normal temperature according to different extraction degrees, and the petroleum asphalt is black in color, glossy and high in temperature sensitivity, and has little volatile components because the petroleum asphalt is distilled to more than 400 ℃ in the production process, but macromolecular hydrocarbon is still possible to be not volatilized, and the substances are more or less harmful to human health. Asphalt is usually processed in asphalt mixing plants, which may also be referred to as asphalt mixing plants, which refer to plants for the mass production of asphalt concrete.

The asphalt mixing plant can be divided into a forced intermittent production mode and a continuous production mode according to the mixing mode; the transportation method can be classified into a fixed type, a semi-fixed type and a mobile type. The asphalt mixing plant mainly comprises a batching system, a drying system, a combustion system, a mixing system, a lifting system, a vibrating screen, a hot material storage bin, a weighing and mixing system, an asphalt supply system, a powder supply system, a dust removal system, a finished product bin, a control system and the like.

The prior art comprises a bottom plate, a bearing plate and a support plate are fixed on two sides of the upper end of the bottom plate, the support plate is positioned on the right side of the bearing plate, rotating shafts are rotatably sleeved on the bearing plate and the support plate, a drying cylinder is jointly fixed between two opposite sides of the rotating shafts, a feed inlet is arranged on one rotating shaft, a first opening is arranged at one end of the drying cylinder and corresponds to the feed inlet, a discharge outlet is arranged on the side wall of the other end of the drying cylinder, a dust removing device is installed on the upper end of the support plate, a mounting plate is fixed on one side of the upper end of the bottom plate and is arranged obliquely, a protection box is fixed on the upper end of the mounting plate, a servo motor is installed in the protection box, a rotating rod is fixed at the tail end of an output shaft of the servo motor, one end of the rotating rod penetrates through the side, one end of the second gear is engaged with the first gear, the first gear is fixed on one of the rotating shafts, the air heater is installed on one side of the upper end of the bottom plate, an air outlet pipe is arranged on the side wall of one end of the air heater, and one end of the air outlet pipe penetrates through the side walls of the first gear and one of the rotating shafts and extends into the drying cylinder. The granular asphalt drying equipment achieves the effect of drying the drying cylinder and the air heater simultaneously, improves the drying efficiency and is convenient to use.

However, the granular asphalt drying equipment has no screening function except for the drying function of the asphalt granules in different size ranges, so that the drying equipment has single function. Therefore, a drying device which has a screening function on the granular asphalt while drying the granular asphalt is urgently needed.

SUMMERY OF THE UTILITY MODEL

Based on above problem, the utility model provides a drying device for graininess petroleum pitch for the drying device who solves current graininess pitch does not possess the problem of screening function. The utility model discloses an in the granular asphalt that interior stirring mechanism was located in the section of thick bamboo of drying stirs while drying on one side, the diameter is less than the granular asphalt of screening hole can fall into outer stoving circle through the screening hole in, the granular asphalt that falls into in the outer stoving circle is dried by the heating pipe of outer stoving circle lower part again, so this drying equipment when drying granular asphalt, can carry out simple screening to granular asphalt to this drying equipment's function has been increased.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

a drying device for granular petroleum asphalt comprises a base, wherein a left vertical telescopic mechanism and a right vertical telescopic mechanism are relatively installed on the top surface of the base, an outer drying ring is installed between the left vertical telescopic mechanism and the right vertical telescopic mechanism, an inner drying cylinder located in the outer drying ring is further installed on the right vertical telescopic mechanism, a sealing plate capable of sealing the outer drying ring is installed in the outer drying ring in the vertical direction, an inner motor is installed on the side surface of the left vertical telescopic mechanism, the inner motor is connected with an inner rotating shaft which penetrates through the sealing plate and the inner drying cylinder and extends into the inner drying cylinder, an inner stirring mechanism located in the inner drying cylinder is installed on the inner rotating shaft, heating pipes are installed on the inner wall of the inner drying cylinder and on the lower part of the outer drying ring, a plurality of screening holes are further formed in the lower part of the inner drying cylinder, an outer feeding and discharging mechanism is formed in the outer drying ring, an inner feeding and discharging mechanism is arranged on the inner drying cylinder.

The working principle is as follows: when granular asphalt needs to be dried, the external granular asphalt is injected into the inner drying cylinder through the outer feeding and discharging mechanism and the inner feeding and discharging mechanism, then the heating pipes on the inner drying cylinder and the outer drying ring are electrified, the inner motor is electrified at the same time, the inner rotating shaft is driven to rotate after the inner motor is electrified, the inner rotating shaft rotates and then drives the inner stirring mechanism to rotate, the inner stirring mechanism rotates to drive the granular asphalt to generate displacement in the inner drying cylinder, at the moment, the granular asphalt smaller than the diameter of the screening hole falls into the outer drying ring from the screening hole, the granular asphalt falling into the outer drying ring is dried through the heating pipe at the lower part of the outer drying ring, until the granular asphalt is dried, the power supplies of the inner motor and the heating pipes are disconnected, and then the dried granular asphalt is conveyed to the next process through the outer feeding and discharging mechanism and the inner feeding and discharging mechanism. This drying equipment can carry out simple screening to granular asphalt when drying to granular asphalt like this to this drying equipment's function has been increased.

As a preferred mode, the inner stirring mechanism comprises an inner connecting sleeve sleeved on the inner rotating shaft, a plurality of inner stirring rods are further mounted on the inner connecting sleeve, and a plurality of inner stirring teeth are arranged on the inner stirring rods.

As a preferable mode, a plurality of inner stirring plates are installed on the inner connecting sleeve along the long side direction of the inner connecting sleeve, and the inner stirring plates and the inner stirring rods are arranged at intervals.

As a preferable mode, an outer motor located below the inner motor is installed on the left vertical telescopic mechanism, the outer motor is connected with an outer rotating shaft penetrating through the sealing plate, and an outer stirring mechanism located outside the inner drying cylinder and located in the outer drying ring is installed on the outer rotating shaft.

As a preferable mode, the outer stirring mechanism includes an outer connecting sleeve sleeved on the outer rotating shaft, a plurality of outer stirring plates are installed on the outer connecting sleeve along the length direction of the outer connecting sleeve, and a plurality of outer stirring teeth are arranged on the outer stirring plates.

As a preferable mode, the outer feeding and discharging mechanism comprises an outer feeding hole and an outer discharging hole which are respectively formed in the upper part and the lower part of the outer drying ring, and the outer feeding hole and the outer discharging hole are respectively detachably connected with an outer feeding plug and an outer discharging plug; interior business turn over material mechanism is including opening interior feed inlet and interior discharge gate in section of thick bamboo upper portion and the lower part including respectively, interior feed inlet and interior discharge gate respectively detachable be connected with interior feeding stopper and interior discharge stopper, the axis of outer feed inlet and interior feed inlet is located same vertical line, the axis of going out feed inlet and interior discharge gate is located same vertical line.

As a preferred mode, the left vertical telescopic mechanism comprises a left telescopic cylinder installed on the base, a piston of the left telescopic cylinder is connected with a left support plate, the right vertical telescopic mechanism comprises a right telescopic cylinder installed on the base, a piston of the right telescopic cylinder is connected with a right support plate, and the outer drying ring is installed between the left support plate and the right support plate.

The utility model has the advantages as follows:

(1) the utility model discloses an in the granular asphalt that interior stirring mechanism was located in the section of thick bamboo of drying stirs while drying on one side, the diameter is less than the granular asphalt of screening hole can fall into outer stoving circle through the screening hole in, the granular asphalt that falls into in the outer stoving circle is dried by the heating pipe of outer stoving circle lower part again, so this drying equipment when drying granular asphalt, can carry out simple screening to granular asphalt to this drying equipment's function has been increased.

(2) The utility model discloses in rabbling mechanism still install a plurality of interior puddlers including the cover at the epaxial in-connection cover of adversion on the in-connection cover, be equipped with a plurality of interior stirring teeth on the interior puddler. The interior pivot is rotatory in interior motor rotation drive, and interior pivot rotation drives in proper order that interior adapter sleeve, interior puddler and interior stirring tooth are rotatory, and interior puddler stirs the graininess pitch in the internal drying section of thick bamboo again with interior stirring tooth.

(3) The utility model discloses in install a plurality of interior stirring boards along its long limit direction on the connecting sleeve, interior stirring board sets up with interior puddler is alternate. Interior stirring board can further stir the graininess pitch after internal stirring pole and the stirring of interior stirring tooth, uses through the collocation to internal stirring board and internal stirring pole, and it is more even to stir graininess pitch more easily to hold and dry graininess pitch more easily, and graininess pitch falls in the circle of drying outside from the screening hole more easily.

(4) The utility model discloses install the outer motor that is located interior motor below on the vertical telescopic machanism in well left side, outer motor is connected with the outer pivot that passes the closing plate, installs the outer rabbling mechanism that is located the outer and lie in outer stoving circle of interior stoving section of thick bamboo on the pivot outward, and outer rabbling mechanism is including the cover at the epaxial outer adapter sleeve of outward pivot, installs a plurality of outer stirring boards along its length direction on the outer adapter sleeve, is equipped with a plurality of outer stirring teeth on the outer stirring board. The outer motor is rotatory to drive the outer shaft rotatory, and the outer shaft is rotatory to drive outer adapter sleeve, outer stirring board and outer stirring tooth rotation in proper order again, and outer stirring board can drive the graininess pitch that is located outer stoving circle with outer stirring tooth rotation and stir, can make like this that the graininess pitch that is located outer stoving circle be heated more evenly, is dried by more easily moreover.

(5) The utility model discloses well left vertical telescopic machanism is connected with the left branch fagging including installing the left telescopic cylinder on the base on the piston of left telescopic cylinder, and right vertical telescopic machanism is connected with the right branch fagging including installing the right telescopic cylinder on the base on the piston of right telescopic cylinder, and the outer circle of drying is installed between left branch fagging and right supporting plate. Through the different flexible height of adjusting left telescopic cylinder and right telescopic cylinder to can adjust the inclination of outer stoving circle and interior stoving section of thick bamboo, thereby can change the different positions of granular pitch in outer stoving circle and interior stoving section of thick bamboo more easily, and empty out granular pitch from outer stoving circle and interior stoving section of thick bamboo more easily.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the front sectional structure of the connection between the inner drying cylinder and the inner stirring mechanism of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the front structure of the external stirring mechanism connected to the external spindle of the present invention;

FIG. 6 is a schematic front sectional view taken at C-C of FIG. 5 according to the present invention;

reference numerals: 1 base, 2 left telescopic cylinder, 3 outer motor, 4 outer rotating shafts, 5 left support plates, 6 inner motor, 7 inner rotating shafts, 8 closing plates, 9 inner drying cylinder, 91 screening holes, 10 outer drying rings, 11 heating pipes, 12 outer feeding plugs, 13 inner feeding plugs, 14 inner stirring mechanisms, 141 inner connecting sleeve, 142 inner stirring plate, 143 inner stirring rod, 1431 inner stirring tooth, 15 inner discharging plugs, 16 outer stirring mechanisms, 161 outer connecting sleeve, 162 outer stirring plate, 1621 outer stirring tooth, 17 outer discharging plugs, 18 right support plates and 19 right telescopic cylinder.

Detailed Description

For a better understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the following embodiments.

Example 1:

as shown in fig. 1-6, a drying device for granular petroleum asphalt comprises a base 1, a left vertical telescoping mechanism and a right vertical telescoping mechanism are oppositely arranged on the top surface of the base 1, an outer drying ring 10 is arranged between the left vertical telescoping mechanism and the right vertical telescoping mechanism, an inner drying cylinder 9 positioned in the outer drying ring 10 is also arranged on the right vertical telescoping mechanism, a sealing plate 8 capable of sealing the outer drying ring 10 is arranged in the outer drying ring 10 in the vertical direction, an inner motor 6 is arranged on the side surface of the left vertical telescoping mechanism, the inner motor 6 is connected with an inner rotating shaft 7 which penetrates through the sealing plate 8 and the inner drying cylinder 9 and extends into the inner drying cylinder 9, an inner stirring mechanism 14 positioned in the inner drying cylinder 9 is arranged on the inner rotating shaft 7, heating pipes 11 are respectively arranged on the inner wall of the inner drying cylinder 9 and the lower part of the outer drying ring 10, a plurality of screening holes 91 are also arranged on the lower part of the inner drying cylinder 9, an outer feeding and discharging mechanism is arranged on the outer drying ring 10, and an inner feeding and discharging mechanism is arranged on the inner drying cylinder 9.

The working principle is as follows: when the granular asphalt needs to be dried, the external granular asphalt is firstly injected into the inner drying cylinder 9 through the outer feeding and discharging mechanism and the inner feeding and discharging mechanism, then the heating pipes 11 on the inner drying cylinder 9 and the outer drying ring 10 are electrified, the inner motor 6 is electrified, the inner motor 6 drives the inner rotating shaft 7 to rotate after being electrified, the inner rotating shaft 7 rotates and then drives the inner stirring mechanism 14 to rotate, the inner stirring mechanism 14 rotates to drive the granular asphalt to generate displacement in the inner drying cylinder 9, at the moment, the granular asphalt with the diameter smaller than that of the screening holes 91 falls into the outer drying ring 10 from the screening holes 91, the granular asphalt falling into the outer drying ring 10 is dried by the heating pipe 11 at the lower part of the outer drying ring 10 until the granular asphalt is dried, the power supply of the inner motor 6 and the heating pipe 11 is cut off, and then conveying the dried granular asphalt to the next process through the outer feeding and discharging mechanism and the inner feeding and discharging mechanism. This drying equipment can carry out simple screening to granular asphalt when drying to granular asphalt like this to this drying equipment's function has been increased.

In addition, the inner motor 6 is conventional and can be easily purchased in the market, the model can be selected but not limited to YT57B2R0510, the heating tube 11 is also conventional and can be easily purchased in the market, and the specific structures, circuit connections, control modes and the like of the inner motor 6 and the heating tube 11 are conventional, so that the detailed description is omitted.

Example 2:

as shown in fig. 1-6, on the basis of the above-mentioned embodiments, this embodiment provides a preferred structure of the inner stirring mechanism, that is, the inner stirring mechanism 14 includes an inner connecting sleeve 141 sleeved on the inner rotating shaft 7, a plurality of inner stirring rods 143 are further mounted on the inner connecting sleeve 141, and a plurality of inner stirring teeth 1431 are provided on the inner stirring rods 143. The inner motor 6 rotates to drive the inner rotating shaft 7 to rotate, the inner rotating shaft 7 rotates to sequentially drive the inner connecting sleeve 141, the inner stirring rod 143 and the inner stirring teeth 1431 to rotate, and the inner stirring rod 143 and the inner stirring teeth 1431 stir the granular asphalt in the inner drying cylinder 9.

Preferably, a plurality of inner stirring plates 142 are attached to the inner jacket 141 along the longitudinal direction thereof, and the inner stirring plates 142 are spaced apart from the inner stirring rod 143. Interior stirring board 142 can further stir the graininess pitch after stirring to stirring rod 143 and interior stirring tooth 1431, and through the collocation use to stirring board 142 and interior stirring rod 143, it is more even to stir graininess pitch more easily to dry graininess pitch more easily, and graininess pitch falls outside from screening hole 91 more easily and dry in circle 10.

The rest is the same as example 1, and therefore, will not be described herein.

Example 3:

as shown in fig. 1-6, on the basis of embodiment 1, this embodiment provides a preferred structure of the outer stirring mechanism, that is, an outer motor 3 located below the inner motor 6 is installed on the left vertical telescopic mechanism, the outer motor 3 is connected to an outer rotating shaft 4 penetrating through the closing plate 8, an outer stirring mechanism 16 located outside the inner drying drum 9 and inside the outer drying ring 10 is installed on the outer rotating shaft 4, the outer stirring mechanism 16 includes an outer connecting sleeve 161 sleeved on the outer rotating shaft 4, a plurality of outer stirring plates 162 are installed on the outer connecting sleeve 161 along the length direction thereof, and a plurality of outer stirring teeth 1621 are installed on the outer stirring plates 162. The outer motor 3 is rotatory to drive the 4 rotations of outer rotor shaft, and outer rotor shaft 4 is rotatory to drive outer adapter sleeve 161, outer stirring board 162 and outer stirring tooth 1621 rotation in proper order again, and outer stirring board 162 and outer stirring tooth 1621 rotation can drive the granular pitch that is located outer stoving circle 10 and stir, can make like this that the granular pitch that is located outer stoving circle 10 is heated more evenly, is dried by the stoving more easily moreover. In addition, the external motor 3 is conventional and can be easily purchased in the market, the model can be selected but is not limited to YT57B2R0510, and the specific structure, circuit connection, control mode and the like of the external motor 3 are conventional, so that the detailed description is not repeated.

The rest is the same as example 1, and therefore, will not be described herein.

Example 4:

as shown in fig. 1 to 6, on the basis of embodiment 1, this embodiment provides a preferable structure of the outer feeding and discharging mechanism, the inner feeding and discharging mechanism, the left vertical telescopic mechanism and the right vertical telescopic mechanism, that is, the outer feeding and discharging mechanism includes an outer feeding port and an outer discharging port which are respectively opened at the upper part and the lower part of the outer drying ring 10, and the outer feeding port and the outer discharging port are respectively detachably connected with an outer feeding plug 12 and an outer discharging plug 17; the inner feeding and discharging mechanism comprises an inner feeding hole and an inner discharging hole which are respectively arranged on the upper part and the lower part of the inner drying cylinder 9, the inner feeding hole and the inner discharging hole are respectively detachably connected with an inner feeding plug 13 and an inner discharging plug 15, the axes of the outer feeding hole and the inner feeding hole are positioned on the same vertical line, and the axes of the outer discharging hole and the inner discharging hole are positioned on the same vertical line. When the granular asphalt needs to be added into the inner drying cylinder 9, the outer feeding plug 12 and the inner feeding plug 13 are detached from the outer feeding hole and the inner feeding hole respectively, then sequentially pass through the outer feeding hole and the inner feeding hole through the outer asphalt pipe, and then inject the outer granular asphalt into the inner drying cylinder 9 through the asphalt pipe; when the granular asphalt needs to be poured out of the outer drying ring 10, the outer discharging plug 17 is detached from the outer discharging port, and the left vertical telescopic mechanism and the right vertical telescopic mechanism are matched to incline the outer drying ring 10, so that the granular asphalt can be poured out of the outer drying ring 10; when granular asphalt is poured out from the inner drying cylinder 9, the inner discharging plug 15 is detached from the inner discharging hole under the condition that the outer discharging hole is opened, and then the granular asphalt can be poured out from the inner drying cylinder 9. The method is characterized in that granular asphalt is poured into a drying cylinder from an asphalt pipe, and the granular asphalt is poured out from an inner drying cylinder 9 and an outer drying ring 10, and can be realized through the prior art.

Preferably, the left vertical telescopic mechanism comprises a left telescopic cylinder 2 installed on the base 1, a left support plate 5 is connected to a piston of the left telescopic cylinder 2, the right vertical telescopic mechanism comprises a right telescopic cylinder 19 installed on the base 1, a right support plate 18 is connected to a piston of the right telescopic cylinder 19, and the outer drying ring 10 is installed between the left support plate 5 and the right support plate 18. Through the different flexible height of adjusting left telescopic cylinder 2 and right telescopic cylinder 19 to can adjust the inclination of outer stoving circle 10 and interior stoving section of thick bamboo 9, thereby can change the different positions of granular pitch in outer stoving circle 10 and interior stoving section of thick bamboo 9 more easily, and empty out granular pitch from outer stoving circle 10 and interior stoving section of thick bamboo 9 more easily. In addition, the left telescopic cylinder 2 and the right telescopic cylinder 19 are conventional and can be easily purchased in the market, the types of the cylinders can be selected but are not limited to SC100 × 200, and the specific structures, circuit connections, control modes and the like of the left telescopic cylinder 2 and the right telescopic cylinder 19 are conventional, so that the details are not described herein.

The rest is the same as example 1, and therefore, will not be described herein.

The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and drawings of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a drying device for graininess petroleum pitch, includes base (1), its characterized in that: the top surface of the base (1) is relatively provided with a left vertical telescopic mechanism and a right vertical telescopic mechanism, an outer drying ring (10) is installed between the left vertical telescopic mechanism and the right vertical telescopic mechanism, an inner drying cylinder (9) positioned in the outer drying ring (10) is further installed on the right vertical telescopic mechanism, a sealing plate (8) capable of sealing the outer drying ring (10) is installed in the outer drying ring (10) in the vertical direction, an inner motor (6) is installed on the side surface of the left vertical telescopic mechanism, the inner motor (6) is connected with an inner rotating shaft (7) which penetrates through the sealing plate (8) and the inner drying cylinder (9) and extends into the inner drying cylinder (9), an inner stirring mechanism (14) positioned in the inner drying cylinder (9) is installed on the inner rotating shaft (7), and heating pipes (11) are installed on the inner wall of the inner drying cylinder (9) and the lower part of the outer drying ring (10), the lower part of the inner drying cylinder (9) is also provided with a plurality of screening holes (91), the outer drying ring (10) is provided with an outer feeding and discharging mechanism, and the inner drying cylinder (9) is provided with an inner feeding and discharging mechanism.

2. The drying apparatus for granular petroleum asphalt according to claim 1, wherein: the inner stirring mechanism (14) comprises an inner connecting sleeve (141) sleeved on the inner rotating shaft (7), a plurality of inner stirring rods (143) are further mounted on the inner connecting sleeve (141), and a plurality of inner stirring teeth (1431) are arranged on the inner stirring rods (143).

3. The drying apparatus for granular petroleum asphalt according to claim 2, wherein: a plurality of inner stirring plates (142) are arranged on the inner connecting sleeve (141) along the long side direction of the inner connecting sleeve, and the inner stirring plates (142) and the inner stirring rods (143) are arranged at intervals.

4. The drying apparatus for granular petroleum asphalt according to claim 1, wherein: an outer motor (3) located below the inner motor (6) is mounted on the left vertical telescopic mechanism, the outer motor (3) is connected with an outer rotating shaft (4) penetrating through a sealing plate (8), and an outer stirring mechanism (16) located outside the inner drying cylinder (9) and in the outer drying ring (10) is mounted on the outer rotating shaft (4).

5. The drying apparatus for granular petroleum asphalt according to claim 4, wherein: the outer stirring mechanism (16) comprises an outer connecting sleeve (161) sleeved on the outer rotating shaft (4), a plurality of outer stirring plates (162) are installed on the outer connecting sleeve (161) along the length direction of the outer connecting sleeve, and a plurality of outer stirring teeth (1621) are arranged on the outer stirring plates (162).

6. The drying apparatus for granular petroleum asphalt according to claim 1, wherein: the outer feeding and discharging mechanism comprises an outer feeding hole and an outer discharging hole which are respectively formed in the upper part and the lower part of the outer drying ring (10), and the outer feeding hole and the outer discharging hole are respectively detachably connected with an outer feeding plug (12) and an outer discharging plug (17); interior business turn over material mechanism is including opening interior feed inlet and interior discharge gate in section of thick bamboo (9) upper portion and the lower part including respectively, interior feed inlet and interior discharge gate respectively detachable be connected with interior feeding plug (13) and interior discharge plug (15), the axis of outer feed inlet and interior feed inlet is located same vertical line, the axis of going out feed inlet and interior discharge gate is located same vertical line.

7. The drying apparatus for granular petroleum asphalt according to claim 1, wherein: the vertical telescopic machanism in a left side is including installing left telescopic cylinder (2) on base (1), be connected with left branch fagging (5) on the piston of left side telescopic cylinder (2), the vertical telescopic machanism in a right side is including installing right telescopic cylinder (19) on base (1), be connected with right branch fagging (18) on the piston of right side telescopic cylinder (19), install between left branch fagging (5) and right branch fagging (18) outer stoving circle (10).

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