CN213066879U

CN213066879U - Magnesium sulfate dryer with good drying effect

Info

Publication number: CN213066879U
Application number: CN202021709028.XU
Authority: CN
Inventors: 张娥; 曲晓燕; 刘鹏
Original assignee: Laizhou Shouxi Magnesium Industry Co ltd
Current assignee: Laizhou Shouxi Magnesium Industry Co ltd
Priority date: 2020-08-15
Filing date: 2020-08-15
Publication date: 2021-04-27
Anticipated expiration: 2030-08-15

Abstract

The application relates to a magnesium sulfate dryer with good drying effect, which comprises a rotary cylinder body; a feeding port is formed in one end of the rotary cylinder; the other end of the rotary cylinder is provided with a discharge hole; a combustor is arranged on one side of the rotary cylinder; one side of the burner is provided with an air heater; the hot air blower is connected with the burner through a hot air pipe; the other end of the air heater is connected with an air outlet pipe communicated with the inside of the rotary cylinder; the inner wall of the rotary cylinder body is fixedly provided with a heat conducting rod; and one end of the heat conducting rod, which is close to the discharge hole, is fixedly provided with a spiral heat exchange sheet. This application has the transmission of promotion heat in the rotary drum body for the effect of stoving.

Description

Magnesium sulfate dryer with good drying effect

Technical Field

The application relates to the field of drying equipment, in particular to a magnesium sulfate dryer with a good drying effect.

Background

Currently, magnesium sulfate also contains some surface water after crystallization and centrifugation, which causes a caking phenomenon during packaging, storage and transportation. In order to ensure the quality of materials in the processes of packaging, storing and transporting, magnesium sulfate is packaged and stored after being dried again, and a dryer is drying equipment used in the process of drying the magnesium sulfate.

The dryer used in the drying process of magnesium sulfate is usually a rotary cylinder type dryer, and fuel is combusted to generate heat for a rotary cylinder, and the heat is introduced into the rotary cylinder of the dryer by a hot air blower to dry the magnesium sulfate.

In order to overcome the defects in the prior art, the applicant believes that after the heat is introduced into the rotary cylinder body by the hot air blower, the heat transfer speed in the rotary cylinder body is low, so that local heat in the rotary cylinder body is high, the temperature in the rotary cylinder body is uneven, and the drying effect is affected.

SUMMERY OF THE UTILITY MODEL

In order to improve the inhomogeneous problem of temperature among the drying-machine drying process, this application provides a drying effect good magnesium sulfate drying-machine.

The application provides a magnesium sulfate drying-machine that drying effect is good adopts following technical scheme:

a magnesium sulfate dryer with good drying effect comprises a rotary cylinder; a feeding port is formed in one end of the rotary cylinder; the other end of the rotary cylinder is provided with a discharge hole; a combustor is arranged on one side of the rotary cylinder; one side of the burner is provided with an air heater; the hot air blower is connected with the burner through a hot air pipe; the other end of the air heater is connected with an air outlet pipe communicated with the inside of the rotary cylinder; the inner wall of the rotary cylinder body is fixedly provided with a heat conducting rod; and one end of the heat conducting rod, which is close to the discharge hole, is fixedly provided with a spiral heat exchange sheet.

By adopting the technical scheme, when in use, magnesium sulfate to be dried is poured into the rotary cylinder body from the feeding port; then the fuel in the burner burns to generate heat, and under the power action of the air heater, the heat is pumped into the hot air pipe and then enters the rotary cylinder through the air outlet pipe. When heat enters the rotary cylinder body, the heat is quickly transferred to the heat conducting rod, and because the magnesium sulfate poured into the feeding port is mixed with water vapor, wet materials can be adhered to the light pipe part of the heat conducting rod and perform heat exchange in the rotating process of the rotary cylinder body; along with the rotation of the rotary cylinder, the magnesium sulfate powder moves towards the direction close to the discharge port and is in contact with the spiral heat exchange fins on the heat conducting rod for heat exchange. And finally, discharging the dried magnesium sulfate powder through a discharge port.

Preferably, the screw pitch of the spiral heat exchange plate is gradually reduced from the feeding port to the direction close to the discharging port.

By adopting the technical scheme, the magnesium sulfate powder is extruded in the clearance of the spiral heat exchange plate during drying, so that the contact area between the magnesium sulfate powder and the spiral heat exchange plate is increased. Meanwhile, in the rotating process of the rotary cylinder body, the spiral heat exchange fins also play a role in auxiliary feeding, so that the movement of the material to the direction of the discharge hole is accelerated.

Preferably, the middle part of the air outlet pipe is connected with a wind power adjusting assembly; the wind power adjusting assembly comprises an end cover fixedly connected with the air outlet pipe, a separation blade rotationally connected to the end cover and a driver coaxially fixed with the separation blade; the driver is communicated with an external power supply; the end cover is provided with a ventilation opening matched with the baffle in shape.

Through adopting above-mentioned technical scheme, the driver starts to order about the separation blade and rotates, can adjust the size of the interior wind-force of air-out pipe according to the volume of material in the rotary drum, plays the technological effect of the energy can be saved.

Preferably, one side of the rotary cylinder is connected with an air return pipe; the other end of the return air pipe is communicated with the interior of the combustor; the return air pipe is connected with a one-way valve.

Through adopting above-mentioned technical scheme, when carrying out stoving during operation, the heat in the rotary drum passes through the return air duct and discharges to in reentrant combustor, can reduce the combustor for maintaining the fuel quantity that the heat in the rotary drum burnt, play the energy saving, reduce the technical effect of energy consumption. Some steam can be mingled with in the hot-blast in getting into the return duct, and the setting of check valve can prevent that hot-blast backward flow from getting into in the rotary drum body, avoids the magnesium sulfate powder to absorb steam once more.

Preferably, a moisture absorption pipe rotationally connected with the rotary cylinder is fixedly arranged at one end, close to the rotary cylinder, of the air return pipe; a dampness removing layer is connected in the moisture absorbing pipe; the inner part of the dampness eliminating layer is filled with active carbon.

Through adopting above-mentioned technical scheme, after hot-blast entering moisture absorption pipe, the layer of dispelling dampness can filter hot-blast and absorb the steam in the hot-blast, prevents that steam from getting into the combustor in, influencing the burning of fuel in the combustor.

Preferably, a sliding groove is formed in the side wall of the moisture absorption pipe; a first caulking groove is formed in the side wall of the dampness removing layer; a stop block slides in the first caulking groove; the stop block is connected with the first caulking groove through a first spring; a second caulking groove is formed in the groove wall of the sliding groove; a pushing block slides in the second caulking groove; the side wall of the moisture absorption pipe is provided with a through hole communicated with the second caulking groove; one end of the pushing block is fixedly provided with a button which slides in the through hole; and a third spring is fixedly arranged at the end part of the side wall of the moisture absorption pipe, which is positioned on the sliding groove.

Through adopting above-mentioned technical scheme, during the installation, promote the dehumidification layer along the length direction of spout, the stop block slides to first caulking groove under the extrusion, and when the stop block moved to opposite with the second caulking groove position, first spring recovered deformation pushed the stop block in the second caulking groove, accomplished the installation of dehumidification layer. When the layer of dispelling the wetness needs to be changed, press the button, promote the piece and push the stop block in first caulking groove, then the third spring resumes deformation and can pop out the layer of dispelling the wetness.

Preferably, the pushing block is connected with the bottom of the second caulking groove through a second spring.

Through adopting above-mentioned technical scheme, when the button was pressed, the second spring was stretched, and after removing the exogenic action, the second spring shrink can be with promoting the piece to the position pulling that is close to the through-hole, prevents that the button from being pressed into in the second caulking groove.

Preferably, the lower end surface of the stopper is provided in an inclined shape.

By adopting the technical scheme, the end face of the stop block is arranged to be inclined, so that the stop block is convenient to push.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when in use, the magnesium sulfate to be dried is poured into the rotary cylinder body from the feeding port; then the fuel in the burner burns to generate heat, and under the power action of the air heater, the heat is pumped into the hot air pipe and then enters the rotary cylinder through the air outlet pipe. When heat enters the rotary cylinder body, the heat is quickly transferred to the heat conducting rod, and because the magnesium sulfate poured into the feeding port is mixed with water vapor, wet materials can be adhered to the light pipe part of the heat conducting rod and perform heat exchange in the rotating process of the rotary cylinder body; along with the rotation of the rotary cylinder, the magnesium sulfate powder moves towards the direction close to the discharge port and is in contact with the spiral heat exchange fins on the heat conducting rod for heat exchange. Finally, discharging the dried magnesium sulfate powder through a discharge port;

2. when the drying operation is carried out, the heat in the rotary cylinder is discharged through the air return pipe and enters the combustor again, so that the fuel quantity burned by the combustor for maintaining the heat in the rotary cylinder can be reduced, and the technical effects of saving energy and reducing energy consumption are achieved;

3. after hot-blast entering moisture absorption pipe, the layer of dispelling the damp can filter hot-blast and absorb the steam in the hot-blast, prevents that steam from getting into the combustor in, influencing the burning of the fuel in the combustor.

Drawings

FIG. 1 is a magnesium sulfate dryer with good drying effect;

FIG. 2 is a schematic sectional view of a dryer in an embodiment;

FIG. 3 is a schematic view of the embodiment highlighting the structure of the wind adjustment assembly;

FIG. 4 is a schematic view showing the structure of a heat conduction rod according to the embodiment;

FIG. 5 is a schematic structural view of a prominent dehumidification layer in an embodiment;

fig. 6 is a schematic view of a portion a in fig. 5 without enlargement.

Description of reference numerals: 1. a rotary cylinder; 11. a feeding port; 12. a discharge port; 2. a drive mechanism; 3. a burner; 4. a hot air blower; 5. a hot air pipe; 6. an air outlet pipe; 7. a wind power adjustment assembly; 71. an end cap; 711. a vent; 72. a baffle plate; 73. a driver; 8. a heat conducting rod; 9. a spiral heat exchanger fin; 10. a return air duct; 13. a one-way valve; 14. a moisture absorbing tube; 141. a chute; 142. a second caulking groove; 1421. a pushing block; 143. a through hole; 15. a dampness-removing layer; 151. a first caulking groove; 1511. a first spring; 1512. a stopper block; 16. a second spring; 17. a button; 18. and a third spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses magnesium sulfate drying-machine that drying effect is good. Referring to fig. 1 and 2, the device comprises a cylindrical rotary cylinder 1, a feeding port 11 is arranged at the upper end of the rotary cylinder 1, a discharging port 12 is arranged at the lower end of the rotary cylinder 1, and a driving mechanism 2 for driving the rotary cylinder 1 to rotate is further connected to the lower end of the rotary cylinder 1. One end of the rotary cylinder body 1 is provided with a burner 3, one end of the burner 3 close to the rotary cylinder body 1 is provided with an air heater 4, and the burner 3 is connected with the air heater 4 through a hot air pipe 5. An air outlet pipe 6 which is communicated with the inside of the rotary cylinder 1 and is rotatably connected with the end surface of the rotary cylinder 1 is fixedly arranged at one end of the air heater 4 far away from the burner 3.

Referring to fig. 1, a magnesium sulfate material to be dried is poured into a rotary cylinder 1 from a feeding port 11, and then fuel in a burner 3 is combusted to provide heat for the rotary cylinder 1. And finally, the hot air blower 4 is started to guide the heat in the combustor 3 into the rotary cylinder 1, and the magnesium sulfate material is dried.

Referring to fig. 2 and 3, in order to adjust the wind power according to the amount of the magnesium sulfate material in the rotary cylinder 1, the middle part of the air outlet pipe 6 is connected with a wind power adjusting assembly 7. The wind power adjusting assembly 7 comprises an end cover 71 fixedly arranged in the middle of the air inlet pipe, a blocking piece 72 rotatably connected to the end cover 71, and a driver 73 for driving the blocking piece 72 to rotate and communicating with an external power supply. The end cover 71 is provided with a ventilation opening 711 matched with the baffle 72 in shape, the driver 73 is started to drive the baffle 72 to rotate, and the size of wind power can be adjusted by adjusting the rotating angle of the baffle 72.

Referring to fig. 2 and 4, in order to accelerate the diffusion of heat in the rotary cylinder 1 and improve the drying effect, a plurality of heat conducting rods 8 extending along the axial direction of the rotary cylinder 1 are fixedly arranged on the inner wall of the rotary cylinder 1. One end of the heat conducting rod 8 close to the feeding port 11 is a light pipe part, the outer ring surface of one end close to the discharging port 12 is fixedly provided with a spiral heat exchange sheet 9, the screw pitch of the spiral heat exchange sheet 9 is gradually reduced from the feeding port 11 to the direction close to the discharging port 12, and the spiral heat exchange sheet can play a role in auxiliary feeding while being dry.

Referring to fig. 1 and 5, an air return pipe 10 is connected to an end surface of the rotary cylinder 1 away from the air outlet pipe 6, and the other end of the air return pipe 10 is communicated with the burner 3. In the drying process, the heat in the rotary cylinder 1 flows back into the combustor 3 through the air return pipe 10 to play a role in energy conservation. In order to prevent the hot air in the return air duct 10 from reversely flowing back into the rotary cylinder 1, the return air duct 10 is connected with a one-way valve 13.

Referring to fig. 1 and 5, in order to prevent the water vapor mixed in the hot air from entering the combustor 3 along with the air return pipe 10, the end of the air return pipe 10 is fixedly provided with a moisture absorption pipe 14 rotatably connected with the end surface of the rotary cylinder 1. The moisture absorption pipe 14 is detachably connected with a moisture removal layer 15, activated carbon is filled in the moisture removal layer 15, and when water vapor is absorbed, magnesium sulfate powder can be blocked to prevent the magnesium sulfate powder from entering the return air pipe 10.

Referring to fig. 5 and 6, in order to facilitate the removal and replacement of the moisture absorption layer 15, a sliding groove 141 is formed on a side wall of the moisture absorption pipe 14, and the moisture absorption layer 15 is slidably connected in the sliding groove 141. The lateral wall of the dehumidification layer 15 is horizontally provided with a first caulking groove 151, a first spring 1511 is fixedly arranged in the first caulking groove 151, and the end of the first spring 1511 is fixedly provided with a stop block 1512 which is slidably connected in the first caulking groove 151.

Referring to fig. 5 and 6, a second caulking groove 142 horizontally disposed is opened on a groove wall of the sliding groove 141 at a position corresponding to the first caulking groove 151. When the moisture-removing layer 15 is pushed along the length direction of the sliding groove 141, the stopper 1512 is pressed and drives the first spring 1511 to contract, so as to pull the stopper 1512 into the first insertion groove 151. When the dampness removing layer 15 moves to the position where the first caulking groove 151 is opposite to the second caulking groove 142, the first spring 1511 restores to deform to eject the stop block 1512 into the second caulking groove 142, and the dampness removing layer 15 is mounted. In order to facilitate pushing of the stopper 1512, a lower end surface of the stopper 1512 is provided in an inclined shape.

Referring to fig. 5 and 6, a pushing block 1421 is slidably connected in the second insertion groove 142, and the pushing block 1421 is connected to the groove bottom of the second insertion groove 142 by a second spring 16. The side wall of the moisture absorption tube 14 is provided with a through hole 143 communicating with the second caulking groove 142 but having an inner diameter smaller than that of the second caulking groove 142, and one end of the push block 1421 near the through hole 143 is fixedly provided with a button 17 slidably connected in the through hole 143. The end part of the side wall of the moisture absorption pipe 14, which is located at the chute 141, is fixedly provided with a third spring 18, and when the dampness removing layer 15 slides to the inside of the chute 141, the third spring 18 contracts and the upper end of the third spring abuts against the end part of the dampness removing layer 15. The push button 17 is pressed to push the push block 1421 towards the direction close to the second caulking groove 142, the push block 1421 pushes the stop block 1512 into the first caulking groove 151, and then the third spring 18 recovers to deform to eject the dampness removing layer 15, so that the dampness removing layer 15 can be separated from the dampness absorbing pipe 14.

The implementation principle of the magnesium sulfate dryer with good drying effect in the embodiment of the application is as follows: in use, the dehumidifying layer 15 is firstly slid along the length direction of the sliding groove 141, and the mounting of the dehumidifying layer 15 is realized through the cooperation of the stop block 1512 and the second caulking groove 142. Then, magnesium sulfate materials are poured into the rotary cylinder body 1 from the feeding port 11, then fuel is placed into the combustor 3 for combustion, the hot air blower 4 is started to introduce hot air generated by fuel combustion into the rotary cylinder body 1, and the driving mechanism 2 drives the rotary cylinder body 1 to rotate to dry the materials in the cylinder body. Finally, the dried material is discharged from the discharge port 12.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A magnesium sulfate dryer with good drying effect comprises a rotary cylinder body (1); a feeding port (11) is formed in one end of the rotary cylinder body (1); the other end of the rotary cylinder body (1) is provided with a discharge hole (12); a combustor (3) is arranged on one side of the rotary cylinder body (1); the method is characterized in that: a hot air blower (4) is arranged on one side of the burner (3); the hot air blower (4) is connected with the combustor (3) through a hot air pipe (5); the other end of the air heater (4) is connected with an air outlet pipe (6) communicated with the interior of the rotary cylinder body (1); a heat conducting rod (8) is fixedly arranged on the inner wall of the rotary cylinder body (1); one end of the heat conducting rod (8) close to the discharge hole (12) is fixedly provided with a spiral heat exchange sheet (9).

2. The magnesium sulfate dryer with good drying effect as claimed in claim 1, wherein: the screw pitch of the spiral heat exchange plate (9) is gradually reduced from the feeding port (11) to the direction close to the discharging port (12).

3. The magnesium sulfate dryer with good drying effect as claimed in claim 1, wherein: the middle part of the air outlet pipe (6) is connected with a wind power adjusting component (7); the wind power adjusting assembly (7) comprises an end cover (71) fixedly connected with the air outlet pipe (6), a blocking piece (72) rotatably connected to the end cover (71) and a driver (73) coaxially fixed with the blocking piece (72); the driver (73) is communicated with an external power supply; the end cover (71) is provided with a ventilation opening (711) matched with the baffle sheet (72) in shape.

4. The magnesium sulfate dryer with good drying effect as claimed in claim 1, wherein: one side of the rotary cylinder body (1) is connected with an air return pipe (10); the other end of the return air pipe (10) is communicated with the interior of the combustor (3); the return air pipe (10) is connected with a one-way valve (13).

5. The magnesium sulfate dryer with good drying effect as claimed in claim 4, wherein: a moisture absorption pipe (14) rotationally connected with the rotary cylinder body (1) is fixedly arranged at one end, close to the rotary cylinder body (1), of the air return pipe (10); a dehumidification layer (15) is connected in the moisture absorption tube (14); the dehumidification layer (15) is filled with activated carbon.

6. The magnesium sulfate dryer with good drying effect as claimed in claim 5, wherein: a sliding groove (141) is formed in the side wall of the moisture absorption pipe (14); a first caulking groove (151) is formed in the side wall of the dampness removing layer (15); a stop block (1512) slides in the first caulking groove (151); the stop block (1512) is connected with the first caulking groove (151) through a first spring (1511); a second caulking groove (142) is formed in the groove wall of the sliding groove (141); a pushing block (1421) slides in the second caulking groove (142); the side wall of the moisture absorption pipe (14) is provided with a through hole (143) communicated with the second caulking groove (142); one end of the pushing block (1421) is fixedly provided with a button (17) which slides in the through hole (143); and a third spring (18) is fixedly arranged at the end part of the side wall of the moisture absorption pipe (14) positioned at the sliding groove (141).

7. The magnesium sulfate dryer with good drying effect as claimed in claim 6, wherein: the pushing block (1421) is connected with the bottom of the second caulking groove (142) through a second spring (16).

8. The magnesium sulfate dryer with good drying effect as claimed in claim 6, wherein: the lower end surface of the stop block (1512) is provided in an inclined shape.