CN213192545U

CN213192545U - Discharging device of spray dryer

Info

Publication number: CN213192545U
Application number: CN202021709552.7U
Authority: CN
Inventors: 吉久贵; 冯向东; 吉安琪
Original assignee: Nanjing Huicai Nano New Material Co ltd
Current assignee: Nanjing Huicai Nano New Material Co ltd
Priority date: 2020-08-15
Filing date: 2020-08-15
Publication date: 2021-05-14
Anticipated expiration: 2030-08-15

Abstract

The application relates to a discharging device of a spray dryer, which is applied to the technical field of dryers and comprises a collecting hopper arranged at the bottom of a drying oven, wherein a discharging barrel is arranged at one side of the collecting hopper, which is far away from the drying oven, a supporting rod is fixedly connected in the discharging barrel, a positioning pipe is sleeved on the supporting rod, and the positioning pipe is rotatably connected to the supporting rod; the one end that the registration arm is close to the collecting hopper is equipped with rabbling mechanism, be equipped with on the play feed cylinder and be used for driving registration arm pivoted driving piece, be connected with jet-propelled mechanism on the bracing piece, jet-propelled mechanism and rabbling mechanism intercommunication. This application can increase the blowing smoothness degree of material through rabbling mechanism and jet-propelled mechanism to can reduce the condition emergence that the material blockked up the discharge gate, with the production efficiency who promotes the desiccator.

Description

Discharging device of spray dryer

Technical Field

The application relates to the technical field of drying machines, in particular to a discharging device of a spray drying machine.

Background

A spray dryer is a device that can accomplish both drying and granulation. The pressure, flow and spray hole size of the feed liquid pump can be adjusted according to the technological requirements, and the required spherical particles with a certain size proportion are obtained. The spray dryer is also one of continuous atmospheric dryers, and sprays liquid material into mist by using special equipment so that the liquid material is dried by contacting with hot air.

Chinese patent publication No. CN109985409A discloses a spray dryer, which comprises a discharge port, an induced air system, a cyclone separator, an air outlet pipe, an air inlet pipe, a water cooling device, an outlet pipe, a frequency converter, an exhaust fan, a feeding system, an atomizer, a material pumping pump, a purification barrel, a material liquid tank, an air supply system, an electric heating tube, an air filter screen, an electric heater, an air blower, an air volume controller, a hot air distributor, a drying chamber, and a machine body.

In view of the above related technologies, the inventor thinks that materials are easy to stack and harden during the discharging process, which may cause the blockage of the discharging port, thereby affecting the discharging efficiency of the dryer, and therefore the dryer has the defect of low production efficiency.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that desiccator production efficiency is low, this application provides a discharge device of spray dryer.

The application provides a spray dryer's discharging device adopts following technical scheme:

a discharging device of a spray dryer comprises a collecting hopper arranged at the bottom of a drying box, wherein a discharging barrel is arranged on one side of the collecting hopper, which is far away from the drying box, a supporting rod is fixedly connected in the discharging barrel, a positioning pipe is sleeved on the supporting rod, and the positioning pipe is rotatably connected to the supporting rod; the one end that the registration arm is close to the collecting hopper is equipped with rabbling mechanism, be equipped with on the play feed cylinder and be used for driving registration arm pivoted driving piece, be connected with jet-propelled mechanism on the bracing piece, jet-propelled mechanism and rabbling mechanism intercommunication.

Through adopting above-mentioned technical scheme, the operator is at the in-process that discharges the material, the operator starts driving piece drive registration arm and rotates, make the registration arm drive rabbling mechanism and rotate, the rabbling mechanism stirs the material in the collecting hopper, with the possibility that reduces the material and appear hardening, the operator starts jet mechanism simultaneously, jet mechanism passes through conveying gas in the rabbling mechanism to the material, gas blows off the material this moment, further reduce the material and appear piling up or the possibility that hardens, thereby rabbling mechanism and jet mechanism can increase the smoothness degree that the material discharged, and then reduce the condition emergence that the material blockked up the discharge gate, with the production efficiency who promotes the desiccator.

Preferably, the stirring mechanism comprises a stirring rod arranged on the positioning pipe, and a plurality of stirring rods are arranged along the peripheral direction of the positioning pipe.

Through adopting above-mentioned technical scheme, the registration arm is at the pivoted in-process, and the puddler follows the registration arm and rotates together, and the puddler can stir the material in the collecting hopper this moment to increase the bulk degree of material when discharging, and then reduce the possibility that the material appears hardening, take place with the condition that reduces the material jam goes out the feed cylinder.

Preferably, the stirring rod is provided with a plurality of groups of stirring blades along the length direction.

Through adopting above-mentioned technical scheme, set up stirring vane and can increase the stirring scope of puddler to increased the stirring area of puddler, and then the puddler of being convenient for breaks up the material, further reduces the possibility that the material appears hardening.

Preferably, the stirring rod penetrates through and is rotatably connected to the positioning pipe, a first bevel gear is sleeved at one end, located in the positioning pipe, of the stirring rod, and a second bevel gear meshed with the first bevel gear is sleeved on the supporting rod.

Through adopting above-mentioned technical scheme, the locating tube drives puddler pivoted in-process, and the puddler drives first bevel gear and rotates round second bevel gear's circumferencial direction, and first bevel gear drives the puddler and produces the rotation this moment to promote the stirring effect of puddler, and then the stirring vane of being convenient for breaks up the material, further reduce the possibility that the material appears piling up or hardens.

Preferably, the position that the bracing piece corresponds with the puddler is overlapped and is equipped with a location section of thick bamboo, the puddler is close to the one end of bracing piece and pegs graft in a location section of thick bamboo, the puddler rotates to be connected on a location section of thick bamboo.

Through adopting above-mentioned technical scheme, the puddler is at the in-process of rotation, and the location section of thick bamboo carries on spacingly to the puddler to increase the stability when the puddler rotates, take place with the condition that reduces first bevel gear and break away from second bevel gear.

Preferably, the air injection mechanism comprises an air pump arranged outside the aggregate bin and an air delivery pipe connected with the air pump, an air inlet groove is formed in one end, close to the aggregate bin, of the support rod, one end, far away from the air pump, of the air delivery pipe penetrates through the side wall of the aggregate bin and is sleeved on the support rod, and the air inlet groove is communicated with the air delivery pipe; set up on the lateral wall that bracing piece and a locating cylinder correspond with the communicating venthole of air inlet duct, the annular has been seted up along the peripheral direction to the lateral wall that a locating cylinder is close to the bracing piece, the annular passes through venthole and air inlet duct intercommunication, the puddler is close to the one end of bracing piece and seted up with the communicating air outlet duct of annular, the puddler is kept away from one side of registration arm and is seted up with the communicating air outlet nozzle of air outlet duct.

Through adopting above-mentioned technical scheme, the operator starts the air pump, and the air pump will be gaseous through the air inlet duct that the gas-supply pipe carried in, gaseous through the venthole entering into the annular after that to enter into the air outlet duct through the annular, last gaseous through the gas outlet nozzle blow away to the material, gaseous this moment blows away the material, thereby reduces the possibility that the material appears piling up or hardens, and then has promoted the smoothness degree when the material discharges, with the discharge rate who improves the material.

Preferably, two sealing rings are embedded in the two sides of the annular groove in the circumferential direction of the positioning cylinder, and the sealing rings abut against the supporting rod.

Through adopting above-mentioned technical scheme, the sealing washer can be filled up the gap between a location section of thick bamboo and the bracing piece to the sealing washer has increased the leakproofness between a location section of thick bamboo and the bracing piece, and then reduces the possibility that the gas leakage appears between a location section of thick bamboo and the bracing piece.

Preferably, a helical blade is spirally arranged on one side of the positioning pipe positioned in the discharging barrel.

Through adopting above-mentioned technical scheme, the registration arm drives helical blade and rotates when rotating, and when the material was through going out the feed cylinder, helical blade can be with material propelling movement outside ejection of compact section of thick bamboo to reduce the material and block up the condition emergence of a feed cylinder, further promoted the discharge rate of material.

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

1. the stirring mechanism and the air injection mechanism can increase the discharging smoothness of the materials and reduce the occurrence of the situation that the discharge hole is blocked by the materials, so that the production efficiency of the dryer is improved;

2. the first bevel gear drives the stirring rod to rotate so as to improve the stirring effect of the stirring rod, the stirring blades can break up materials conveniently, the possibility of accumulation or hardening of the materials is further reduced, and the material discharge rate is improved;

3. the condition that the material blocks up the feed cylinder can be reduced through the helical blade, and the discharge rate of the material is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the stirring mechanism in this embodiment.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic structural diagram for embodying the air injection mechanism in the present embodiment.

Description of reference numerals: 1. a drying oven; 2. a collection hopper; 3. a discharging barrel; 31. a support bar; 311. an air inlet groove; 312. an air outlet; 32. a positioning tube; 33. a helical blade; 34. fixing the rod; 35. a protective cover; 4. a stirring mechanism; 41. a stirring rod; 411. an air outlet groove; 412. an air outlet nozzle; 42. a stirring blade; 43. a first bevel gear; 44. a second bevel gear; 5. a drive member; 51. a worm gear; 52. a worm; 53. a motor; 6. an air injection mechanism; 61. an air pump; 62. a gas delivery pipe; 7. a positioning cylinder; 71. a ring groove; 72. and (5) sealing rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses spray dryer's discharging device. Referring to fig. 1 and 2, the discharging device comprises a material collecting hopper 2 arranged at the bottom of the drying oven 1, wherein the material collecting hopper 2 is in an inverted cone shape. The great one end fixed connection of collecting hopper 2 size is on drying cabinet 1, and the one end intercommunication that collecting hopper 2 kept away from drying cabinet 1 has ejection of compact section of thick bamboo 3. Go out feed cylinder 3 and be equipped with the bracing piece 31 that one end extends into the collecting hopper 2 along vertical direction, bracing piece 31 all is equipped with a pair of dead lever 34 along length direction's both ends. One end of the support rod 31 located in the aggregate bin 2 is fixedly connected to the side wall of the aggregate bin 2 through a pair of fixing rods 34, and the other end is fixedly connected to the inner wall of the discharging barrel 3 through another pair of fixing rods 34.

Referring to fig. 1 and 2, the supporting rod 31 is sleeved with a positioning tube 32 between two pairs of fixing rods 34, the positioning tube 32 is rotatably connected to the supporting rod 31, and two ends of the positioning tube 32 in the length direction are respectively located in the collecting hopper 2 and the discharging barrel 3. One end of the positioning pipe 32 located in the aggregate bin 2 is provided with a stirring mechanism 4, one end of the support rod 31 located in the aggregate bin 2 is connected with an air injection mechanism 6, and the air injection mechanism 6 is communicated with the stirring mechanism 4. And be equipped with driving piece 5 on ejection of compact section of thick bamboo 3, driving piece 5 is including the worm wheel 51 of cover setting on registration arm 32, and worm wheel 51 fixed connection is on registration arm 32, and ejection of compact section of thick bamboo 3 internal rotation is connected with worm 52 with worm wheel 51 engaged with. The outer side wall of the discharging barrel 3 is fixedly connected with a motor 53, the axis of the output shaft of the motor 53 and the axis of the worm 52 are on the same straight line, and the worm 52 is fixedly connected to the output shaft of the motor 53.

Referring to fig. 1 and 2, during the discharging process of the material, the operator activates the motor 53 to drive the worm 52 to rotate, and the worm 52 drives the worm wheel to drive the positioning pipe 32 to rotate. At this time, the positioning pipe 32 drives the stirring mechanism 4 to rotate, so that the stirring mechanism 4 breaks up the materials in the aggregate bin 2, and the occurrence of the hardened condition of the materials is reduced. Simultaneously the operator starts gas injection mechanism 6, and gas injection mechanism 6 carries gas among the rabbling mechanism 4 to gas blows off the material through rabbling mechanism 4, makes gas blow off the material, thereby further reduces the possibility that the material appears piling up or hardens, so that the quick follow play feed cylinder 3 of material discharges, has improved the production efficiency of desiccator.

Referring to fig. 1 and 2, a protective cover 35 is sleeved on the positioning tube 32, the protective cover 35 is rotatably connected to the positioning tube 32, and the protective cover 35 is fixedly connected to the inner wall of the discharging barrel 3 through a connecting rod. And worm wheel 51 and worm 52 all set up in protection casing 35, and protection casing 35 can shelter from the material to reduce the condition emergence that the material influences worm wheel 51 and worm 52 meshing. Meanwhile, the positioning tube 32 is provided with a spiral blade 33 in a spiral manner on one side of the protective cover 35 departing from the aggregate bin 2, and the positioning tube 32 drives the spiral blade 33 to rotate together in the rotating process of the positioning tube 32. Helical blade 33 is the outside with material propelling movement to play feed cylinder 3 this moment to helical blade 33 can reduce the material and block up the condition emergence of play feed cylinder 3, and then has promoted the discharge rate of material.

Referring to fig. 2 and 3, the stirring mechanism 4 includes three stirring rods 41 penetrating through the positioning tube 32, the stirring rods 41 are rotatably connected to the positioning tube 32, and the three stirring rods 41 are uniformly distributed along the circumferential direction of the positioning tube 32. The puddler 41 is equipped with a plurality of groups stirring vane 42 along length direction in the one side that the registration arm 32 deviates from bracing piece 31, and a plurality of groups stirring vane 42 along the length direction evenly distributed of stirring, and the same group stirring vane 42 has three along the circumferencial direction evenly distributed of puddler 41. One end of the stirring rod 41 far away from the side wall of the aggregate bin 2 extends into the positioning tube 32, one end of the stirring rod 41 in the positioning tube 32 is sleeved with a first bevel gear 43, and the first bevel gear 43 is fixedly connected to the stirring rod 41. And a second bevel gear 44 engaged with the first bevel gear 43 is sleeved on the support rod 31, and the second bevel gear 44 is fixedly connected to the support rod 31.

Referring to fig. 2 and 3, during the rotation of the positioning tube 32, the positioning tube 32 drives the stirring rod 41 to rotate together, and the stirring rod 41 drives the first bevel gear 43 to rotate along the circumferential direction of the second bevel gear 44. At this time, the second bevel gear 44 rotates the first bevel gear 43, and the first bevel gear 43 rotates the stirring rod 41. Simultaneously puddler 41 drives stirring vane 42 and rotates, and stirring vane 42 is at the pivoted in-process, and stirring vane 42 breaks up the material to further reduce the possibility that the material appears piling up or hardening, and then promote the smoothness degree of material when discharging, with the discharge rate who promotes the material.

Referring to fig. 3, a positioning cylinder 7 is sleeved at a position of the support rod 31 corresponding to the stirring rod 41, the positioning cylinder 7 is rotatably connected to the support rod 31, and one end of the stirring rod 41 close to the support rod 31 is inserted and rotatably connected to the positioning cylinder 7. During the rotation of the stirring rod 41, the positioning cylinder 7 limits the stirring rod 41, so that the stability of the stirring rod 41 during rotation is improved, and the first bevel gear 43 is prevented from being disengaged from the second bevel gear 44.

Referring to fig. 3 and 4, the air injection mechanism 6 includes an air pump 61 and an air pipe 62 connected to the air pump 61, and one end of the air pipe 62 far away from the air pump 61 penetrates through the side wall of the aggregate bin 2 and is sleeved on the support rod 31. An air inlet slot 311 is opened at one end of the support rod 31 located in the aggregate bin 2, and the air inlet slot 311 is communicated with the air pipe 62. The support rod 31 is provided with four air outlet holes 312 corresponding to the positioning cylinder 7 and communicated with the air inlet slot 311, and the number of the air outlet holes 312 is four along the circumferential direction of the support rod 31. The positioning cylinder 7 is provided with a ring groove 71 along the circumferential direction at a position corresponding to the air outlet hole 312, and the ring groove 71 is communicated with the air inlet groove 311 through the air outlet hole 312. One end of the stirring rod 41 close to the supporting rod 31 is provided with an air outlet slot 411 communicated with the annular slot 71, one side of the positioning tube 32 away from the supporting rod 31 of the stirring rod 41 is provided with a plurality of air outlet nozzles 412 communicated with the air outlet slot 411 along the length direction, the plurality of air outlet nozzles 412 are uniformly distributed along the length direction of the stirring rod 41, and the air outlet nozzles 412 and the stirring blades 42 are arranged in a staggered manner.

Referring to fig. 3 and 4, the operator activates the air pump 61, and the air pump 61 delivers air into the air inlet groove 311 through the air delivery pipe 62. The gas then enters annular groove 71 through gas outlet holes 312 and is transported through annular groove 71 to gas outlet groove 411. Finally, the air outlet nozzle 412 blows in the material, so that the material is blown away by air, the loosening degree of the material in the material collecting hopper 2 is improved, the fluency of the material during discharging is improved, and the discharging speed of the material is further improved. Meanwhile, two sides of the annular groove 71 of the positioning cylinder 7 along the peripheral direction are embedded with a sealing ring 72, and the sealing ring 72 is abutted against the support rod 31. The sealing ring 72 is made of rubber, and the rubber itself is soft and elastic, so as to fill up the gap between the positioning cylinder 7 and the supporting rod 31, thereby increasing the sealing performance between the positioning cylinder 7 and the supporting rod 31, and reducing the possibility of air leakage between the positioning cylinder 7 and the supporting rod 31.

The implementation principle of the embodiment of the application is as follows: when the dryer discharges the material, the operator simultaneously activates the motor 53 and the air pump 61. The motor 53 drives the positioning tube 32 to rotate through the worm 52 and the worm wheel 51, and the positioning tube 32 drives the stirring rod 41 to rotate. And the stirring rod 41 drives the first bevel gear 43 to rotate along the second bevel gear 44, so that the stirring rod 41 rotates, and at the moment, the stirring rod 41 drives the stirring blade 42 to break up the materials, thereby reducing the possibility of accumulation or hardening of the materials. Meanwhile, the air pump 61 conveys the air into the air inlet slot 311 through the air conveying pipe 62, and the air passes through the air outlet hole 312, the annular slot 71 and the air outlet slot 411 in sequence and is blown away into the material from the air outlet nozzle 412 finally, so that the looseness of the material is improved, and the possibility of accumulation or plate pieces of the material is further reduced. And the helical blade 33 discharges the material from the discharge cylinder 3 to reduce the occurrence of the material clogging the discharge cylinder 3.

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. The utility model provides a spray dryer's discharging device, is including setting up collecting hopper (2) in drying cabinet (1) bottom, one side that drying cabinet (1) was kept away from in collecting hopper (2) is equipped with out feed cylinder (3), its characterized in that: a support rod (31) is fixedly connected in the discharging barrel (3), a positioning pipe (32) is sleeved on the support rod (31), and the positioning pipe (32) is rotatably connected to the support rod (31);

the one end that registration arm (32) are close to collecting hopper (2) is equipped with rabbling mechanism (4), be equipped with on play feed cylinder (3) and be used for driving registration arm (32) pivoted driving piece (5), be connected with jet-propelled mechanism (6) on bracing piece (31), jet-propelled mechanism (6) and rabbling mechanism (4) intercommunication.

2. The discharge device of a spray dryer according to claim 1, characterized in that: the stirring mechanism (4) comprises a stirring rod (41) arranged on the positioning pipe (32), and a plurality of stirring rods (41) are arranged along the peripheral direction of the positioning pipe (32).

3. A discharge device of a spray dryer according to claim 2, characterized in that: the stirring rod (41) is provided with a plurality of groups of stirring blades (42) along the length direction.

4. A discharge device of a spray dryer according to claim 3, characterized in that: the stirring rod (41) penetrates through and is rotatably connected to the positioning pipe (32), a first bevel gear (43) is sleeved at one end, located in the positioning pipe (32), of the stirring rod (41), and a second bevel gear (44) meshed with the first bevel gear (43) is sleeved on the supporting rod (31).

5. The discharge device of a spray dryer according to claim 4, wherein: the position that bracing piece (31) and puddler (41) correspond is equipped with a location section of thick bamboo (7) in a cover manner, the one end that puddler (41) is close to bracing piece (31) is pegged graft in a location section of thick bamboo (7), puddler (41) rotate to be connected on a location section of thick bamboo (7).

6. The discharge device of a spray dryer according to claim 5, wherein: the air injection mechanism (6) comprises an air pump (61) arranged on the outer side of the aggregate bin (2) and an air conveying pipe (62) connected with the air pump (61), an air inlet groove (311) is formed in one end, close to the aggregate bin (2), of the supporting rod (31), one end, far away from the air pump (61), of the air conveying pipe (62) penetrates through the side wall of the aggregate bin (2) and is sleeved on the supporting rod (31), and the air inlet groove (311) is communicated with the air conveying pipe (62);

offer on the lateral wall that bracing piece (31) and location section of thick bamboo (7) correspond with communicating venthole (312) of air inlet tank (311), the lateral wall that location section of thick bamboo (7) are close to bracing piece (31) has seted up annular (71) along the peripheral direction, annular (71) are through venthole (312) and air inlet tank (311) intercommunication, puddler (41) are close to the one end of bracing piece (31) and seted up with communicating venthole (411) of annular (71), puddler (41) are kept away from one side of registration arm (32) and are seted up with communicating air outlet nozzle (412) of air outlet tank (411).

7. The discharge device of a spray dryer according to claim 6, wherein: two sealing rings (72) are embedded in the two sides of the annular groove (71) along the peripheral direction of the positioning cylinder (7), and the sealing rings (72) are abutted to the supporting rod (31).

8. The discharge device of a spray dryer according to claim 1, characterized in that: and a spiral blade (33) is spirally arranged on one side of the positioning pipe (32) positioned in the discharging barrel (3).