CN211739801U - Double heat exchange equipment for enhancing mass and heat transfer by high shearing force - Google Patents

Abstract

The utility model discloses a two indirect heating equipment of mass transfer heat transfer are reinforceed to high shear force, including transmission and barrel, transmission sets up the one side at the barrel, transmission includes motor and shaft coupling, the transmission shaft of motor passes through the shaft coupling and is connected with the central siphon pivot, the central siphon sets up and extends the barrel at the axle center department and both ends of barrel, the barrel is close to the last fixed surface of motor one end and is connected with convection type process gas intake pipe, and keeps away from the lower fixed surface of motor one end and is connected with convection type process gas and product mixing discharging pipe, the clamp cover is close to the last fixed surface of motor one end and is connected with conduction type working medium inlet pipe, and keeps away from the lower fixed surface of motor one end and is connected with conduction type working. The high-shear force enhanced mass and heat transfer double heat exchange equipment has the advantages of good self-cleaning property, small dust amount, high evaporation rate and less equipment abrasion.

Description

Double heat exchange equipment for enhancing mass and heat transfer by high shearing force

Technical Field

The utility model belongs to the technical field of the material mummification is dehumidified, concretely relates to mass transfer heat transfer's two indirect heating equipment is reinforceed to high shear force.

Background

The existing drying equipment is generally divided into two types according to heating modes, one type is convection type drying equipment, namely wet materials are in direct contact with drying media (such as heated air, high-temperature flue gas and the like) to transfer heat, dry and dehumidify, such as an airflow dryer, a spray dryer, a rotary flash dryer and the like; the other type is a conduction type drying device, namely, wet materials are indirectly contacted with drying media (such as saturated steam, heat conduction oil, hot water and the like) to conduct heat, dry and dehumidify, and the wet materials are contacted with a paddle dryer, a disc dryer and the like. For the above devices, whether the convection type drying device or the conduction type drying device is used, the material can be dried only by using a single drying medium, that is, the convection type device can only use heated air, high-temperature flue gas and the like as the drying medium, and the conduction type device can only use saturated steam, heat conduction oil, hot water and the like as the drying medium, and the problems of poor self-cleaning property, large dust amount, low evaporation rate and serious device abrasion exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mass transfer heat transfer's two indirect heating equipment is reinforceed to high shear force to solve current mummification equipment from the poor, dust volume is big, evaporation rate is low and the serious problem of equipment wearing and tearing.

In order to achieve the above object, the utility model provides a following technical scheme: a double heat exchange device for strengthening mass and heat transfer by high shearing force comprises a transmission device and a cylinder body, wherein the transmission device is arranged on one side of the cylinder body, the transmission device comprises a motor and a coupler, a transmission shaft of the motor is connected with a shaft tube rotating shaft through the coupler, the shaft tube is arranged at the axis of the cylinder body, two ends of the shaft tube extend out of the cylinder body, the cylinder body is cylindrical, two ends of the cylinder body are provided with end plate sealing covers with flanges, the outer surface of the shaft tube is alternately provided with a plurality of spiral stirring blades, the outer surface of the cylinder body is nested with a jacket, the upper surface of one end of the cylinder body close to the motor is fixedly connected with a convection type process gas inlet pipe, and the lower surface of one end far away from the motor is fixedly connected with a convection type process gas and product mixing discharge pipe, the upper surface of the jacket close to one end of the motor is fixedly connected with a conduction type working medium feeding pipe, and the lower surface of the jacket far away from one end of the motor is fixedly connected with a conduction type working medium discharging pipe.

Preferably, the outer surface of one end of the cylinder body close to the motor is fixedly connected with a wet material feeding pipe which is vertical to the convection type process gas inlet pipe.

Preferably, a high-speed turbine which enables the stirring blades to generate strong stirring effect on the particles is arranged in the motor.

Preferably, the jacket is one of a honeycomb type, a pipe-tracing type or a cylinder type.

Preferably, a gap is reserved between the stirring blade and the inner wall of the cylinder, and the linear speed of the outer edge of the stirring blade is kept between 15 and 30 m/s.

Preferably, the surface of the end plate sealing cover with the flange is provided with a through hole matched with the shaft tube.

The utility model discloses a technological effect and advantage: 1. according to the high-shear-force-enhanced mass and heat transfer double-heat exchange equipment, a high-speed turbine is arranged in a motor, so that a stirring blade can generate a strong stirring effect on particles, the linear velocity of the outer edge is kept between 15 and 30m/s, a large amount of process gas is flushed, and the dispersed particles of a dynamic thin layer are taken out of a cylinder body by airflow, so that self-emptying is realized;

2. the novel equipment has short treatment time, the temperature of a dried product is lower due to the thermal temperature regulation effect, the particles generate less dust due to overheating, and the dust concentration in the product is lower through gas conveying and gas-solid (cyclone separator, bag-type dust remover and the like) separation;

3. the novel equipment is gas-solid parallel flow type equipment, and the heat exchange is 'convection + conduction' double heat exchange, so that the evaporation rate is greatly improved;

4. the stirring blade of the novel equipment is erosive wear, the torque is short, the stirring blade does not exchange heat, the hardness of the selectable material is high, the material processing time is short, the material layer is thin at the exposed stage of the abrasive particles, the inner wall of the cylinder is not stressed in the vertical direction, no abrasive particle ploughshare is needed, and the wear of the equipment is greatly reduced.

Drawings

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

fig. 2 is a right side sectional view of the present invention;

fig. 3 is a schematic view of the process characteristics of the present invention.

In the figure: 1-transmission device, 101-motor, 102-coupler, 2-barrel, 3-jacket, 4-shaft tube, 5-stirring blade, 6-end plate cover with flange, 7-convection type process gas inlet tube, 8-wet material inlet tube, 9-convection type process gas and product mixing outlet tube, 10-conduction type process material inlet tube and 11-conduction type process material outlet tube.

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 high shear force strengthens two indirect heating equipment of mass transfer heat transfer as shown in the figure, including transmission 1 and barrel 2, transmission 1 sets up in one side of barrel 2, transmission 1 includes motor 101 and shaft coupling 102, the transmission shaft of motor 101 passes through shaft coupling 102 and is connected with shaft tube 4 pivot, shaft tube 4 sets up in the axle center department of barrel 2 and both ends extend barrel 2, barrel 2 is cylindric and both ends are equipped with flanged end plate closing cap 6, the surface of shaft tube 4 is equipped with a plurality of heliciform stirring vane 5 in turn, the surface of barrel 2 is nested to press from both sides cover 3, the upper surface that barrel 2 is close to motor 101 one end is fixedly connected with convection type process gas intake pipe 7, and the lower fixed surface that keeps away from motor 101 one end is connected with convection type process gas and product mixing discharging pipe 9, the upper surface of the jacket 3 close to one end of the motor 101 is fixedly connected with a conduction type working medium feeding pipe 10, and the lower surface of the jacket far away from one end of the motor 101 is fixedly connected with a conduction type working medium discharging pipe 11. In addition, the outer surface of the barrel 2 close to one end of the motor 101 is fixedly connected with a wet material feeding pipe 8 perpendicular to the convection type process gas inlet pipe 7, so that materials can be conveniently added from the wet material feeding pipe 8 according to the volume continuity of the barrel 2, and meanwhile, the materials can be contacted and preheated with hot air continuously added from the convection type process gas inlet pipe 7 in the adding process. Be equipped with in the motor 101 and make stirring vane 5 produce strong stirring effect high-speed turbine to the granule, improved stirring vane 5's rotational speed greatly, and then improved the air flow. The jacket 3 is one of a honeycomb type, a pipe-accompanying type or a cylindrical type. A gap is reserved between the stirring blade 5 and the inner wall of the barrel body 2, the outer edge linear speed of the stirring blade 5 is kept at 1530m/s, the normal operation of the stirring blade 5 is guaranteed, meanwhile, collision between the stirring blade 5 and the barrel body 2 is avoided, a large amount of process gas is flushed due to the high outer edge linear speed, dispersed particles of a dynamic thin layer are taken out of the barrel body 2 by airflow, and self-emptying is achieved. The surface of the end plate sealing cover 6 with the flange is provided with a through hole matched with the shaft tube 4, so that the shaft tube 4 is positioned, and the shaft tube 4 can conveniently extend out of the barrel 2 to be connected with the coupler 102.

The working principle is as follows: when the high-shear-force-enhanced mass and heat transfer double heat exchange equipment works, materials are added from a wet material feeding pipe 8 according to the volume continuity of a cylinder 2, hot air is also continuously added from a convection type process gas inlet pipe 7, under the action of shear force generated by high-speed rotation of an axle pipe 4 and a stirring blade 5, hot air and the materials generate rotary vortex, the materials are dried in a convection mode while being conveyed in a spiral advancing mode, the materials are distributed on the inner wall surface of the cylinder 2 under the action of rotary centrifugal force, saturated steam in a jacket 3 is added from a conduction type process gas feeding pipe 10, the materials are continuously contacted with the heat transfer wall surface of the jacket 3 to be dried in a conduction mode, the process gas and the products are continuously discharged from a convection type process gas and product mixed discharging pipe 9 after the drying is finished, and meanwhile steam condensate in the jacket 3 is discharged from a conduction type process. The high-shear force enhanced mass and heat transfer double heat exchange equipment has the advantages of good self-cleaning property, small dust amount, high evaporation rate and less equipment abrasion.

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 (6)

1. The utility model provides a two indirect heating equipment of mass transfer heat transfer are reinforceed to high shear force, includes transmission (1) and barrel (2), its characterized in that: the transmission device (1) is arranged on one side of the barrel body (2), the transmission device (1) comprises a motor (101) and a coupler (102), a transmission shaft of the motor (101) is connected with a rotating shaft of the shaft tube (4) through the coupler (102), the shaft tube (4) is arranged at the axle center of the barrel body (2) and two ends of the shaft tube extend out of the barrel body (2), the barrel body (2) is cylindrical, end plate sealing covers (6) with flanges are arranged at two ends of the barrel body (2), a plurality of spiral stirring blades (5) are alternately arranged on the outer surface of the shaft tube (4), a jacket (3) is nested on the outer surface of the barrel body (2), a convection type process gas inlet pipe (7) is fixedly connected to the upper surface of one end, close to the motor (101), of the barrel body (2), and a convection type process gas and product mixing discharge pipe (, the upper surface of the jacket (3) close to one end of the motor (101) is fixedly connected with a conduction type working medium feeding pipe (10), and the lower surface of the jacket (3) far away from one end of the motor (101) is fixedly connected with a conduction type working medium discharging pipe (11).

2. The high shear force enhanced mass and heat transfer double heat exchange device of claim 1, wherein: the outer surface of one end, close to the motor (101), of the barrel body (2) is fixedly connected with a wet material feeding pipe (8) which is perpendicular to the convection type process gas inlet pipe (7).

3. The high shear force enhanced mass and heat transfer double heat exchange device of claim 1, wherein: a high-speed turbine which enables the stirring blades (5) to generate strong stirring effect on the particles is arranged in the motor (101).

4. The high shear force enhanced mass and heat transfer double heat exchange device of claim 1, wherein: the jacket (3) adopts one of a honeycomb type, a pipe accompanying type or a cylinder type.

5. The high shear force enhanced mass and heat transfer double heat exchange device of claim 1, wherein: a gap is reserved between the stirring blade (5) and the inner wall of the barrel body (2), and the linear speed of the outer edge of the stirring blade (5) is kept between 15 and 30 m/s.

6. The high shear force enhanced mass and heat transfer double heat exchange device of claim 1, wherein: and the surface of the end plate sealing cover (6) with the flange is provided with a through hole matched with the shaft tube (4).

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