Indirect method heat conduction rotary roller drying equipment

Abstract

The utility model discloses indirect method heat conduction rotary roller drying equipment which comprises a base and a rotary roller, two sets of catch wheels are installed at the upper end of the base, the rotary roller is rotationally arranged on the catch wheels and is obliquely arranged, a rotary sleeve is further rotationally installed on the left side of the rotary roller, and a discharging pipe is installed at the lower end of the rotary sleeve. The spiral feeder is mounted on the right side of the rotary drum and used for adding materials into the rotary drum; the drying mechanism is mounted on the left side of the rotary drum and used for drying materials in the rotary drum, the structure is reasonable, a plurality of capillary steam pipelines are arranged in the rotary drum for heating, the whole device can be effectively prevented from becoming a pressure container, and the use safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dry equipment technical field, concretely to a kind of indirect method heat conduction rotary drum drying equipment. BACKGROUND

[0002] Rotary drum drying equipment is a continuous drying production machinery, mainly by rotary cylinder, fixed cylinder, material lifting plate, transmission device and sealing ring and other components, widely used in metallurgy, chemical industry, food, pharmaceutical and other fields.Rotary cylinder is a slightly inclined angle with horizontal direction cylinder, material is added from higher end, hot air from lower end and material countercurrent into cylinder, with the rotation of cylinder, material runs to lower end due to gravity.In the inner wall of rotary cylinder, material is scooped up and spilled again by scoop plate, so that the contact surface of material and airflow is increased, to improve drying rate and promote material forward.Dried product is discharged from lower end and collected.

[0003] For example, the utility model patent with the authorization announcement No.CN207317417U discloses a rotary drum drying kiln, which adopts first sealing gasket, second sealing gasket and second baffle to form secondary sealing, thereby reducing the flying of material from the connection between kiln head and kiln body, and further improving the sealing effect.

[0004] However, the device adopts the form that sealing head concentrates steam, which forms a large steam inlet cavity, so that the volume of equipment steam inlet chamber is large, which causes the equipment to be pressure vessel, and has great safety hazard. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of indirect method heat conduction rotary drum drying equipment to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of indirect method heat conduction rotary drum drying equipment, including: base, rotary drum, the base upper end is equipped with two groups of blocking wheel, the rotary drum rotation is arranged on blocking wheel, the rotary drum is obliquely arranged, rotary sleeve is also rotationally installed on the left side of rotary drum, and discharge pipe is installed on the lower end of rotary sleeve;Spiral feeder is installed on the right side of rotary drum for adding material into rotary drum;Drying mechanism is installed on the left side of rotary drum for drying material in rotary drum.

[0008] As a preferred scheme, the spiral feeder includes feeding pipe installed on the right end of rotary drum, feeding auger is rotationally installed in the feeding pipe, feeding hopper is also installed on the feeding pipe, feeding motor is also installed on the end of feeding pipe, and the output end of feeding motor is drivingly connected with the shaft end of feeding auger.

[0009] As a preferred scheme, the drying mechanism comprises a conversion joint rotatably installed at the left end of the rotary drum, the right end of the conversion joint extends into the interior of the rotary drum, a partition plate is arranged in the conversion joint, the partition plate divides the conversion joint into a heating cavity on the left side and a reflux cavity on the right side, a plurality of groups of reflux pipes are distributed and arranged on the outer side of the conversion joint corresponding to the position of the reflux cavity, and a plurality of groups of steam inlet pipes are distributed and arranged on the outer side of the conversion joint corresponding to the position of the heating cavity, and the corresponding steam inlet pipe and the reflux pipe are communicated through a capillary steam pipeline.

[0010] The left side of the conversion joint is also provided with a condensing pipe, the condensing pipe is communicated with the reflux cavity, and the lower end of the conversion joint is also provided with a steam inlet. Through the arrangement of the plurality of groups of capillary steam pipelines, the contact area of the material and the capillary steam pipeline can be increased, heat exchange between the material and the water vapor in the capillary steam pipeline is facilitated, indirect heating is realized, and the rapid drying of the material is realized.

[0011] As a preferred scheme, the steam inlet pipe and the reflux pipe are distributed in a plum blossom shape in the rotary drum.

[0012] As a preferred scheme, a transmission gear ring is installed at the middle position of the rotary drum, a driving motor is installed on the base, a driving pinion is installed at the output end of the driving motor, and the driving pinion is meshed and connected with the transmission gear ring.

[0013] As a preferred scheme, the right side of the rotary drum is also provided with an air inlet, and an air outlet is formed in the rotary sleeve.

[0014] As a preferred scheme, the position of the air outlet is communicated with a cyclone separator through an air outlet pipe, a pulse type bag-type dust collector is also installed on the left side of the cyclone separator, and a moisture removal air guide fan is installed on the pulse type bag-type dust collector.

[0015] As a preferred scheme, a supporting ring is also installed on the rotary drum, and the supporting ring is inserted into the supporting groove on the blocking wheel.

[0016] Compared with the prior art, the beneficial effects of the utility model are that: the steam is transported to the steam inlet pipe through the conversion joint, then transferred to the capillary steam pipeline in the rotary drum, the condensed steam forms condensed water and then flows back to the reflux pipe, and then the condensed pipe discharges, the steam does not need to enter the interior of the rotary drum and directly contact the material to realize the drying work, the rotary drum directly becomes a pressure container is avoided, and the safety of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a schematic diagram of the sectional structure of the whole indirect heat conduction rotary drum drying equipment.

[0018] Fig. 2 It is a schematic diagram of the spiral feeder structure of the indirect heat conduction rotary drum drying equipment.

[0019] Fig. 3 It is a schematic diagram of the sectional structure of the rotary drum side of the indirect heat conduction rotary drum drying equipment.

[0020] Fig. 4 It is a schematic diagram of the sectional structure of the rotary drum front of the indirect heat conduction rotary drum drying equipment.

[0021] Fig. 5 It is a schematic diagram of the sectional structure of the whole indirect heat conduction rotary drum drying equipment. Fig. 4 It is a schematic diagram of the enlarged structure at A in the above.

[0022] In the figure: 1, base; 10, rotary drum; 101, rotary sleeve; 11, blocking wheel; 12, supporting roller; 13, transmission gear ring; 14, discharge pipe; 15, air outlet; 16, air outlet pipe; 17, cyclone separator; 18, pulse type cloth bag dust collector; 19, moisture removal induced fan; 2, spiral feeder; 21, feeding pipe; 22, feeding auger; 23, feeding hopper; 24, feeding motor; 3, drying mechanism; 31, capillary steam pipe; 32, conversion joint; 33, partition plate; 34, backflow cavity; 35, heating cavity; 36, steam inlet pipe; 37, backflow pipe; 38, condensing pipe; 4, air inlet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment: Please refer to Figs. 1-5The utility model discloses an indirect method heat transfer rotary drum drying equipment, include: base 1, rotary drum 10, two groups of fender wheel 11 are installed on the upper end of base 1, rotary drum 10 is rotationally arranged on fender wheel 11, support race 12 is also installed on rotary drum 10, and support race 12 is inserted in the support groove on fender wheel 11, and rotary drum 10 is arranged obliquely, rotary sleeve 101 is also rotationally installed on the left side of rotary drum 10, and discharge pipe 14 is installed on the lower end of rotary sleeve 101, and electromagnetic valve is installed on discharge pipe 14, spiral feeder 2 is installed on the right side of rotary drum 10 and is used to add material to rotary drum 10, drying mechanism 3 is installed on the left side of rotary drum 10 and is used to dry the material in rotary drum 10, in order to facilitate the rotation of rotary drum 10, transmission gear ring 13 is installed in the middle position of rotary drum 10, and drive motor is installed on base 1, and drive pinion is installed on the output end of drive motor, and drive pinion is connected with transmission gear ring 13.

[0025] The utility model discloses a working principle: when using, through spiral feeder 2 adds material to rotary drum 10, simultaneously, starts drying mechanism 3, and the material in rotary drum 10 is dried through drying mechanism 3, simultaneously, drive motor drives drive pinion to rotate, and then drive transmission gear ring 13 to rotate, to make rotary drum 10 rotate on fender wheel 11, and then realize the tumbling of the raw material in rotary drum 10, because rotary drum 10 is arranged obliquely, conveniently transports material to the left side discharge pipe 14, to discharge the material that drying is completed.

[0026] As further scheme, the spiral feeder 2 includes the feeding pipe 21 installed in the right end of rotary drum 10, the feeding auger 22 is rotationally installed in the feeding pipe 21, the feeding hopper 23 is also installed on the feeding pipe 21, and the feeding motor 24 is also installed on the end of the feeding pipe 21, and the output end of the feeding motor 24 is drivenly connected with the shaft end of the feeding auger 22.

[0027] The working principle of spiral feeder 2 is: when using, through feeding hopper 23 adds material to feeding pipe 21, then, starts feeding motor 24, and the feeding auger 22 is driven to rotate through feeding motor 24, to transport material to rotary drum 10.

[0028] As a further scheme, the drying mechanism 3 comprises a conversion joint 32 rotatably installed at the left end of the rotary drum 10, the right end of the conversion joint 32 extends into the interior of the rotary drum 10, a partition plate 33 is arranged in the conversion joint 32, the partition plate 33 divides the conversion joint 32 into a heating cavity 35 on the left side and a reflux cavity 34 on the right side, a plurality of groups of reflux pipes 37 are distributed and arranged on the outer side of the conversion joint 32 corresponding to the position of the reflux cavity 34, a plurality of groups of steam inlet pipes 36 are distributed and arranged on the outer side of the conversion joint 32 corresponding to the position of the heating cavity 35, and the corresponding steam inlet pipe 36 and the reflux pipe 37 are communicated through a capillary steam pipe 31; the left side of the conversion joint 32 is also provided with a condensing pipe 38, the condensing pipe 38 is communicated with the reflux cavity 34, and the lower end of the conversion joint 32 is also provided with a steam inlet, which is communicated with a steam boiler; in this embodiment, the steam inlet pipe 36 and the reflux pipe 37 are distributed in a plum blossom shape in the rotary drum 10, the end of the condensing pipe 38 is provided with a drain valve, the drain port of the drain valve is communicated with the steam boiler, and the condensate water is recycled.

[0029] The working principle of the drying mechanism 3 is as follows: during drying, steam is delivered into the conversion joint 32 through the steam inlet, the steam enters the heating cavity 35, then enters the capillary steam pipe 31 through the steam inlet pipe 36, when the material contacts the capillary steam pipe 31, heat exchange between the steam and the material is realized, so that the material is heated and dried, at this time, part of the steam is condensed to form condensate water, which enters the reflux cavity 34 through the reflux pipe 37, and then is discharged through the condensing pipe 38, so that the material in the rotary drum 10 is dried and heated.

[0030] The steam is delivered into the capillary steam pipe 31 in the rotary drum 10 through the conversion joint 32, the condensed steam forms condensate water which then flows back into the reflux pipe 37, and then is discharged through the condensing pipe 38, so that the steam can realize drying work without entering the interior of the rotary drum 10 and directly contacting the material, thereby avoiding that the rotary drum 10 directly becomes a pressure container, and improving the safety of the device in use.

[0031] In addition, the plurality of groups of capillary steam pipes 31 form a series of pipes, which increase the contact area between the material and the capillary steam pipe 31, thereby increasing the possibility of heat exchange between the material and the steam, and improving the drying efficiency.

[0032] As a further scheme, the right side of the rotary drum 10 is also provided with an air inlet 4, and an air outlet 15 is formed in the rotary sleeve. By arranging the air inlet 4, air can be introduced to drive the evaporated water vapor to move together to the air outlet 15, so that the evaporated water vapor can be quickly transferred to the outside of the equipment.

[0033] As a further scheme, the air outlet 15 is communicated with a cyclone separator 17 through an air outlet pipe 16, and a pulse bag-type dust collector 18 is further installed on the left side of the cyclone separator 17, and a wet air exhaust fan 19 is installed on the pulse bag-type dust collector 18.

[0034] By setting the wet air exhaust fan 19, the water vapor in the rotary drum 10 can be conveniently removed, the drying effect is improved, and the pollution to the environment can be reduced by cooperating with the cyclone separator 17 and the pulse bag-type dust collector 18 for purification treatment and then being discharged.

[0035] In the utility model, the terms such as '' upper'', '' lower'', '' left'', '' right'', '' front'', '' rear'', '' vertical'', '' horizontal'', '' side'', '' bottom'' and the like indicate the orientation or positional relationship shown in the drawings, and are only the relationship words determined for the purpose of conveniently describing the structural relationship of the components or elements of the utility model, and are not specific to any component or element in the utility model, and cannot be understood as a limitation on the utility model.

Claims

1. An indirect method heat transfer rotary drum drying apparatus, characterized by, Include: Base (1), rotary drum (10), the upper end of the base (1) is provided with two groups of blocking wheels (11), the rotary drum (10) is rotatably arranged on the blocking wheel (11), the rotary drum (10) is arranged obliquely, the rotary drum (10) is further rotatably provided with a rotary sleeve (101) on the left side, and the lower end of the rotary sleeve (101) is provided with a discharge pipe (14); Screw feeder (2), installed on the right side of the rotary drum (10), for adding material to the rotary drum (10); Drying mechanism (3), installed on the left side of the rotary drum (10), for drying the material in the rotary drum (10).

2. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 1 wherein: The screw feeder (2) comprises a feeding pipe (21) installed at the right end of the rotary drum (10), a feeding auger (22) rotatably installed in the feeding pipe (21), a feeding hopper (23) further installed on the feeding pipe (21), and a feeding motor (24) further installed at the end of the feeding pipe (21), and the output end of the feeding motor (24) is drivingly connected with the shaft end of the feeding auger (22).

3. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 2 wherein: The drying mechanism (3) comprises a conversion joint (32) rotatably installed at the left end of the rotary drum (10), the right end of the conversion joint (32) extends into the rotary drum (10), a partition plate (33) is arranged in the conversion joint (32), the partition plate (33) divides the conversion joint (32) into a heating cavity (35) on the left side and a reflux cavity (34) on the right side, a plurality of reflux pipes (37) are installed on the outer side of the conversion joint (32) corresponding to the position of the reflux cavity (34), a plurality of steam inlet pipes (36) are installed on the outer side of the conversion joint (32) corresponding to the position of the heating cavity (35), and the corresponding steam inlet pipe (36) and reflux pipe (37) are communicated through a capillary steam pipe (31); The conversion joint (32) is further provided with a condenser pipe (38) on the left side, the condenser pipe (38) is communicated with the reflux cavity (34), and the conversion joint (32) is further provided with a steam inlet on the lower end.

4. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 3 wherein: The steam inlet pipe (36) and the reflux pipe (37) are distributed in a plum blossom shape in the rotary drum (10).

5. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 4 wherein: A transmission gear ring (13) is installed at the middle position of the rotary drum (10), a driving motor is installed on the base (1), a driving pinion is installed at the output end of the driving motor, and the driving pinion is meshingly connected with the transmission gear ring (13).

6. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 5 wherein: An air inlet (4) is further arranged on the right side of the rotary drum (10), and an air outlet (15) is formed in the rotary sleeve.

7. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 6 wherein: The position of the air outlet (15) is communicated with a cyclone separator (17) through an air outlet pipe (16), and a pulse type bag dust collector (18) is further installed on the left side of the cyclone separator (17).

8. An indirect method heat transfer rotary drum drying apparatus as claimed in claim 7 wherein: A supporting ring (12) is further installed on the rotary drum (10), and the supporting ring (12) is inserted into the supporting groove on the blocking wheel (11).

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