CN211204777U - Disc type dryer - Google Patents

Abstract

The utility model discloses a disk dryer, including feeding mechanism, drying system and dust pelletizing system, drying system includes casing and desicator, the casing top is put through with feeding mechanism mutually, casing upside inner wall coils and is provided with steam conduit, casing downside inner wall coils and is provided with the cooling tube, the desicator includes pivot, drying plate, and scraper blade, drying plate has a plurality of, and from last to arranging in proper order down inside the casing, the inside lateral wall of casing has a plurality of linking piece. The utility model supplies heat to the drying plate through steam, and dries the wet pulverized coal together by matching with hot air, thereby not only drying the pulverized coal uniformly, but also improving the drying efficiency; a part of heat in the top end of the discharge port in the shell is taken away by the cooling water, so that the shell is in a relatively low-temperature environment, and spontaneous combustion caused by high temperature of the pulverized coal is avoided.

Description

Disc type dryer

Technical Field

The utility model relates to a drying equipment technical field, in particular to disk dryer.

Background

In the prior art, the coal powder needs to be subjected to humidifying, so that the humidity of wet coal powder is reduced to be below 6%, a multi-pipe rotary dryer is adopted for the coal powder humidifying technology at first, wet coal enters a cylinder and is continuously lifted by a lifting blade to be in contact with hot gas in the cylinder to evaporate water, meanwhile, the coal powder moves from a high end to a low end along the longitudinal direction of the cylinder and is finally discharged from the low end of a rotary drum, but the multi-pipe rotary dryer has large external heat loss, material is stuck to the inner wall of the cylinder, and the heat loss of smoke exhaust is large.

For example, patent No. CN201821818901.1 discloses a disc dryer for humidifying pulverized coal, which comprises a drying system and a dust removing system, wherein the drying system comprises a casing, a base, a top cover, a disc continuous dryer and a driving device, an air heating device is arranged at the lower part of the casing, and hot air is introduced into the casing to heat the pulverized coal.

The patent has the defects of low drying efficiency, long time consumption, uneven drying and higher temperature at the bottom of the shell, and easily causes spontaneous combustion of pulverized coal.

Therefore, it is necessary to invent a disc dryer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disk dryer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a disc dryer comprises a feeding mechanism, a drying system and a dust removal system, wherein the drying system comprises a shell and a dryer, the top end of the shell is communicated with the feeding mechanism, a steam pipeline is coiled on the inner wall of the upper side of the shell, a cooling pipeline is coiled on the inner wall of the lower side of the shell, the dryer comprises a rotating shaft, a drying disc and scraper blades, the drying disc is provided with a plurality of drying discs, the drying discs are sequentially arranged inside the shell from top to bottom, the side wall inside the shell is provided with a plurality of linking blocks, two sides of each drying disc are fixedly arranged on the linking blocks, the rotating shaft is rotatably arranged inside the shell and penetrates through the drying discs, the scraper blades are fixedly arranged on two sides of the rotating shaft and are arranged above each drying disc, a discharge port is arranged at the bottom end of the shell, an exhaust port is formed in the top end of the, and an air heater and a fan are externally connected to the side wall of the shell.

Preferably, the drying tray includes big drying tray and little drying tray, big drying tray with little drying tray is crisscross to be distributed, the drying tray outer lane is the setting of annular siphunculus.

Preferably, the steam pipeline is communicated with the drying disc on the corresponding side, and the cooling pipeline is communicated with the drying disc on the corresponding side.

Preferably, the drying plate is provided with a plurality of blanking grooves, the more the blanking grooves are arranged at the lower part of the drying plate, and the surface of the drying plate is provided with a plurality of air holes which are uniformly distributed.

Preferably, the through holes are formed in the centers of the large drying disc and the small drying disc, the outer periphery of the large drying disc is bent upwards to form an outer material retaining ring, and the edge of the through hole of the small drying disc is bent upwards to form an inner material retaining ring.

Preferably, the side wall of the shell is respectively provided with a steam inlet, a steam outlet, a cooling water inlet and a cooling water outlet.

Preferably, the rotating shaft penetrates through the bottom end of the shell and is fixedly connected with a driving motor.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with steam conduit, and drying tray and steam conduit switch-on, when using, let in hot steam through steam inlet, steam lets in inside the annular siphunculus in the drying tray through steam conduit, finally discharge through steam outlet, in this in-process, the heat can be even transmit to the drying tray surface, simultaneously, air heater sends the wind heating that the fan insufflates to the casing inside, high temperature air moves from the casing bottom to the top, gas temperature is descending gradually to the top, wet buggy gets into the casing inside from feeding mechanism, because upside drying tray surface unloading groove is less, downside drying tray surface unloading groove is more, lead to the buggy to last the time of surface dwell of upside drying tray longer, downside drying tray surface dwell time is shorter, wet buggy is from last to moving in-process, under the dual heat source of hot air and hot drying tray, the pulverized coal can be dried uniformly, and the drying efficiency can be improved;

2. the utility model discloses a be provided with cooling tube, inside cooling water let in the annular siphunculus in the drying plate through cooling tube, finally through the cooling water export discharge, at this in-process, some heat can be taken away to the cooling water, makes discharge gate top position in the casing, is in a relatively microthermal environment, avoids the higher spontaneous combustion that takes place of buggy temperature.

Drawings

Fig. 1 is a schematic view of the overall front view section of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 3 is a top view of the drying tray of the present invention.

In the figure: the device comprises a feeding mechanism 1, a dust removal system 2, a shell 3, a steam pipeline 4, a cooling pipeline 5, a rotating shaft 6, a drying disk 7, a large drying disk 71, a small drying disk 72, a scraping plate 8, a connecting block 9, a discharge hole 10, an exhaust port 11 and an air heater 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a disc dryer as shown in figures 1-3, which comprises a feeding mechanism 1, a drying system and a dust removing system 2, wherein the drying system comprises a shell 3 and a dryer, the top end of the shell 3 is communicated with the feeding mechanism 1, the inner wall of the upper side of the shell 3 is coiled with a steam pipeline 4, the inner wall of the lower side of the shell 3 is coiled with a cooling pipeline 5, the dryer comprises a rotating shaft 6, a drying disc 7 and a scraper 8, the drying disc 7 is provided with a plurality of drying discs which are sequentially arranged inside the shell 3 from top to bottom, the side wall inside the shell 3 is provided with a plurality of linking blocks 9, two sides of the drying disc 7 are fixedly arranged on the linking blocks 9, the rotating shaft 6 is rotatably arranged inside the shell 3 and penetrates through the drying disc 7, the scraper 8 is fixedly arranged on two sides of the rotating shaft 6 and is arranged above each drying disc 7, the bottom of the shell 3 is provided with a discharge hole 10, the top of the shell 3 is provided with an exhaust hole 11, the exhaust hole 11 is communicated with the dust removal system 2, the side wall of the shell 3 is externally connected with an air heater 12 and a fan, and an air inlet of the air heater 12 is arranged on one side of the bottom end of the steam pipeline 4.

Further, in the above technical solution, the drying tray 7 includes a large drying tray 71 and a small drying tray 72, the large drying tray 71 and the small drying tray 72 are distributed in a staggered manner, and an outer ring of the drying tray 7 is an annular through pipe;

further, in the above technical solution, the steam duct 4 is communicated with the drying tray 7 on the corresponding side, and the cooling duct 5 is communicated with the drying tray 7 on the corresponding side;

further, in the above technical scheme, a plurality of blanking slots are formed in the drying tray 7, and the more the blanking slots are formed in the position of the drying tray 7, the more the positions of the blanking slots are closer to the lower part, the surface of the drying tray 7 is provided with a plurality of air holes which are uniformly distributed;

further, in the above technical solution, through holes are opened at the centers of the large drying tray 71 and the small drying tray 72, in order to increase the holding amount of the pulverized coal in the drying tray 71, the outer periphery of the large drying tray 71 is bent upwards to form an outer material blocking ring, and the edge of the through hole of the small drying tray 72 is bent upwards to form an inner material blocking ring;

further, in the above technical solution, the side wall of the housing 3 is respectively provided with a steam inlet, a steam outlet, a cooling water inlet and a cooling water outlet.

Further, in the above technical solution, the rotating shaft 6 penetrates the bottom end of the housing 3 and is fixedly connected with a driving motor.

Further, in the above technical solution, as the pulverized coal is drier and has smaller granularity, the pulverized coal moves downwards and has smaller granularity, when fine pulverized coal particles move upwards along with air, a part of the fine pulverized coal particles will settle down, and the rising particles will be hindered by the drying plate 7, and finally only a few pulverized coal particles are discharged along with the tail gas, so that only a common wet dust collector is needed.

The utility model discloses the theory of operation:

referring to the attached drawings 1-3 of the specification, when the utility model is used, hot steam is introduced through a steam inlet, the steam is introduced into an annular through pipe in a drying disc 7 through a steam pipeline 4 and is finally discharged through a steam outlet, in the process, heat can be uniformly transferred to the surface of the drying disc 7, meanwhile, an air heater 12 heats wind blown by a fan and sends the heated wind into a shell 3, high-temperature air moves upwards from the bottom of the shell 3, the gas temperature is gradually reduced from bottom to top, wet pulverized coal enters the shell 3 from a feeding mechanism 1, because the material grooves below the surface of an upper drying disc 7 are less, the material grooves below the surface of a lower drying disc 7 are more, the pulverized coal stays on the surface of the upper drying disc 7 for a longer time, the material grooves below the surface of the lower drying disc 7 are shorter, and during the movement process of the wet pulverized coal from top to bottom, under the dual heat sources of the hot air and the hot drying disc 7, the pulverized coal can be dried uniformly, and the drying efficiency can be improved;

referring to the attached drawing 1 of the specification, by arranging the cooling pipeline 5, cooling water is introduced into the annular through pipe in the drying disc 7 through the cooling pipeline 5 and is finally discharged through the cooling water outlet, in the process, the cooling water can take away a part of heat, so that the top end part of the discharge hole 10 in the shell 3 is in a relatively low-temperature environment, and spontaneous combustion caused by high temperature of pulverized coal is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. The utility model provides a disk dryer, includes feeding mechanism (1), drying system and dust pelletizing system (2), its characterized in that: the drying system comprises a shell (3) and a dryer, the top end of the shell (3) is communicated with a feeding mechanism (1), a steam pipeline (4) is arranged on the inner wall of the upper side of the shell (3) in a coiled manner, a cooling pipeline (5) is arranged on the inner wall of the lower side of the shell (3) in a coiled manner, the dryer comprises a rotating shaft (6), a drying disc (7) and scraping plates (8), the drying disc (7) is provided with a plurality of drying discs (7) and is sequentially arranged inside the shell (3) from top to bottom, the side wall inside the shell (3) is provided with a plurality of connecting blocks (9), two sides of each drying disc (7) are fixedly arranged on the corresponding connecting block (9), the rotating shaft (6) is rotatably arranged inside the shell (3) and penetrates through the drying discs (7), the scraping plates (8) are fixedly arranged on two sides of the rotating shaft (6) and are arranged on each drying disc (, the dust removal device is characterized in that a discharge hole (10) is formed in the bottom end of the shell (3), an exhaust port (11) is formed in the top end of the shell (3), the exhaust port (11) is communicated with the dust removal system (2), and an air heater (12) and a fan are connected to the side wall of the shell (3) externally.

2. The tray dryer of claim 1, wherein: drying tray (7) are including big drying tray (71) and little drying tray (72), big drying tray (71) with little drying tray (72) crisscross distribution, drying tray (7) outer lane is the setting of annular siphunculus.

3. The tray dryer of claim 2, wherein: the steam pipeline (4) is communicated with the drying disc (7) on the corresponding side, and the cooling pipeline (5) is communicated with the drying disc (7) on the corresponding side.

4. The tray dryer of claim 1, wherein: a plurality of blanking grooves are formed in the drying disc (7), the more the blanking grooves are formed in the position of the drying disc (7) under the drying disc, the more the plurality of air holes are uniformly distributed in the surface of the drying disc (7).

5. The tray dryer of claim 2, wherein: the through hole has been seted up in big drying dish (71) and little drying dish (72) center department, and the outer periphery of big drying dish (71) upwards buckles and forms outer fender material circle, and the through hole edge of little drying dish (72) upwards buckles and forms interior fender material circle.

6. The tray dryer of claim 1, wherein: the side wall of the shell (3) is respectively provided with a steam inlet, a steam outlet, a cooling water inlet and a cooling water outlet.

7. The tray dryer of claim 1, wherein: the rotating shaft (6) penetrates through the bottom end of the shell (3) and is fixedly connected with a driving motor.

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