CN210689033U

CN210689033U - Double-drying and one-cooling drying system for compound fertilizer

Info

Publication number: CN210689033U
Application number: CN201921417315.0U
Authority: CN
Inventors: 王建
Original assignee: Angel Yeast Chifeng Co Ltd
Current assignee: Angel Yeast Chifeng Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-05
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a double-drying and one-cooling drying system for compound fertilizer, which comprises a primary roller dryer, a secondary roller dryer and a roller cooler which are arranged in sequence from front to back, wherein a second conveying device is arranged between the primary roller dryer and the secondary roller dryer, a third conveying device and a primary roller dryer are arranged between the secondary roller dryer and the roller cooler, the two-stage roller dryer and the roller cooler both comprise a front box body, a rear box body and a rotatable roller arranged between the front box body and the rear box body, a plurality of shoveling plates are uniformly arranged on the inner wall of the roller, a front vent of the front box body of the one-stage roller dryer is connected with an air outlet of the first hot blast stove through a pipe fitting, a front vent of the front box body of the two-stage roller dryer is connected with an air outlet of the second hot blast stove through a pipe fitting, and a front vent of the front box body of the roller cooler is connected with an air exhauster through a pipe fitting. The method can effectively dry the inside and outside of compound fertilizer particles and ensure better particle hardness.

Description

Double-drying and one-cooling drying system for compound fertilizer

Technical Field

The utility model relates to a compound thoughtlessly fertile production facility technical field, concretely relates to compound thoughtlessly fertile two dry by fire a cold drying system.

Background

In the existing production process of the compound fertilizer, the compound fertilizer needs to be dried and processed by a drying system after being granulated. However, because the structure of the existing drying equipment is unreasonable, the particles are easy to break in the drying process, the inside and outside of the compound fertilizer particles can not be effectively dried, the moisture inside and outside the compound fertilizer particles is unbalanced, the particle hardness is not enough, and the particles are easy to break due to the fact that the moisture inside the compound fertilizer particles permeates outwards after the compound fertilizer particles are stored for a long time.

Therefore, there is a need in the prior art for a drying apparatus that can effectively dry both the inside and outside of compound fertilizer granules and ensure good granule hardness thereof.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art existence, provide one kind and make compound fertile granule inside and outside all obtain effective stoving to guarantee that the compound fertile two of its better particle hardness dry by fire a cold drying system.

The utility model discloses a realize through following technical scheme: a double-drying and one-cooling drying system for compound fertilizer comprises a primary roller dryer, a secondary roller dryer and a roller cooler which are sequentially arranged from front to back, wherein a second conveying device is arranged between the primary roller dryer and the secondary roller dryer, a third conveying device is arranged between the secondary roller dryer and the roller cooler, the primary roller dryer, the secondary roller dryer and the roller cooler respectively comprise a front box body, a rear box body and a rotatable roller arranged between the front box body and the rear box body, the roller is downwards inclined by 10-15 degrees relative to a horizontal plane in the feeding direction, a plurality of shoveling plates are uniformly arranged on the inner wall of the roller, the front box body and the rear box body are in sealing fit with the roller, a base is arranged below the roller, and a supporting roller assembly is arranged between the base and the roller, the outer circumference of cylinder is provided with the ring gear, be provided with driving motor on the base, the gear that driving motor's power take off set up with the ring gear meshing, the front end of preceding box is provided with preceding vent, the top of preceding box is provided with the feed inlet, the bottom of back box is provided with the discharge gate, the rear end of back box is provided with the back vent, the preceding vent of the preceding box of one-level cylinder drying-machine passes through the pipe fitting and is connected with the air outlet of first hot-blast furnace, the preceding vent of the preceding box of second grade cylinder drying-machine passes through the pipe fitting and is connected with the air outlet of second hot-blast furnace, the preceding vent of the preceding box of cylinder cooling-machine passes through the pipe fitting and is connected with.

The drum of the first-stage drum dryer is 16-20 meters long, the drum of the second-stage drum dryer is 20-24 meters long, and the drum of the drum cooler is 16-20 meters long.

The shoveling plate comprises a shoveling plate body perpendicular to the inner wall of the roller and a shovel head arranged at the front end of the shoveling plate body, and an angle of 90-120 degrees is formed between the shovel head and the shoveling plate body.

The shoveling plate is not arranged in the front two meters of the roller of the primary roller dryer; in the front section of the drum of the primary drum dryer, the shovel head of the shoveling plate and the shoveling plate body form an angle of 120 degrees; in the middle section of the drum of the primary drum dryer, the shovel head of the shoveling plate and the shoveling plate body form a 110-degree angle; in the rear section of the drum of the primary drum dryer, the shovel head of the shoveling plate and the shoveling plate body form a 90-degree angle.

The utility model has the advantages that: the utility model discloses a second grade high temperature is dried and is added one-level normal atmospheric temperature cooling and drying's structure, has increaseed the stroke of compound fertile granule in the drying-machine, has prolonged the dwell time of particle in the drying-machine to through the improvement of flight structure, avoid drying process in-process granule breakage, increased heat transfer area, make the particle obtain abundant release at the drying process in moisture, progressively carry out the osmotic drying, make all obtain effective stoving inside and outside the compound fertile granule, inside and outside moisture is balanced. After being dried at high temperature, the mixture enters a roller cooler and is cooled by convection normal-temperature air, so that the hardness of the particles is further enhanced, and the particles are not easy to break.

Drawings

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

FIG. 2 is a schematic structural view of a primary tumble dryer;

FIG. 3 is a schematic cross-sectional view of a primary tumble dryer;

FIG. 4 is a schematic diagram of a shoveling plate distribution structure of a roller;

fig. 5 is a schematic structural view of the shoveling plate.

In the figure: 1-granulating machine; 2-a first conveying device; 3-a first-stage drum dryer; 4-a first hot blast stove; 5-a second conveying device; 6-a two-stage drum dryer; 7-a second hot blast stove; 8-a third conveying device; 9-a drum cooler; 10-an exhaust fan; 11-a base; 12-a front box body; 13-a roller; 14-rear box body; 15-supporting the roller assembly; 16-a gear ring; 17-a drive motor; 18-shovelling plates; 19-a shovel head; 20-shovelling plate body; 21-front section of drum; 22-middle section of drum; 23-rear section of drum.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, a double-drying and one-cooling drying system for compound fertilizer comprises a primary drum dryer 3, a secondary drum dryer 6 and a drum cooler 9 which are sequentially arranged from front to back, a second conveyor 5 is arranged between the primary drum dryer 3 and the secondary drum dryer 6, a third conveyor 8 is arranged between the secondary drum dryer 6 and the drum cooler 9, each of the primary drum dryer 3, the secondary drum dryer 6 and the drum cooler 9 comprises a front box 12, a rear box 14 and a drum 13 which is rotatably arranged between the front box 12 and the rear box 14, the drum 13 inclines downwards by 10-15 degrees relative to a horizontal plane from a feeding direction to a discharging direction, a plurality of shoveling plates 18 are uniformly arranged on the inner wall of the drum 13, the front box 12 and the rear box 14 are in sealing fit with the drum 13, a base 11 is arranged below the drum 13, and a support component 15 is arranged between the base 11 and the drum 13, the outer circumference of the roller 13 is provided with a gear ring 16, the base 11 is provided with a driving motor 17, a gear arranged at the power output end of the driving motor 17 is meshed with the gear ring 16, the front end of the front box body 12 is provided with a front vent, the top end of the front box body 12 is provided with a feed inlet, the bottom of the rear box body 14 is provided with a discharge outlet, the rear end of the rear box body 14 is provided with a rear vent, the front vent of the front box body 12 of the one-level roller dryer 3 is connected with an air outlet of the first hot blast stove 4 through a pipe fitting, the front vent of the front box body 12 of the two-level roller dryer 6 is connected with an air outlet of the second hot blast stove 7 through a pipe fitting, and the front vent.

During operation, compound thoughtlessly fertile granule that granulator 1 processed out gets into one-level cylinder drying-machine 3 through first conveyor 2, and after the one-level was dried, compound thoughtlessly fertile granule passes through second conveyor 5 and gets into second grade cylinder drying-machine 6 and forbid the second grade and dry, the utility model discloses having increaseed the stroke of compound thoughtlessly fertile granule in the drying-machine, having prolonged the dwell time of granule in the drying-machine, made the granule moisture obtain abundant release in drying process, progressively carry out the infiltration formula and dry. Then the mixture enters a roller cooler 9 through a third conveying device 8, under the action of an exhaust fan 10, the moving directions of normal-temperature air and compound fertilizer particles are just opposite, and the normal-temperature air is cooled through convection, so that the particle hardness is further enhanced, and the particles are not easy to break.

Wherein, the length of the roller 13 of the first-stage roller dryer 3 is 16-20 meters, the length of the roller 13 of the second-stage roller dryer 6 is 20-24 meters, and the length of the roller 13 of the roller cooler 9 is 16-20 meters.

As shown in fig. 5, the shoveling plate 18 includes a shoveling plate body 20 perpendicular to the inner wall of the drum 13 and a shovel head 19 disposed at the front end of the shoveling plate body 20, and an angle a between the shovel head 19 and the shoveling plate body 20 is 90-120 degrees.

As shown in fig. 4, no shoveling plate 18 is arranged in the front two meters of the drum 13 of the primary drum dryer 3; in the front section 21 of the drum of the primary drum dryer 3, an angle of 120 degrees is formed between a shovel head 19 of a shoveling plate 18 and a shoveling plate body 20; in the middle section 22 of the roller of the first-stage roller dryer 3, an angle of 110 degrees is formed between the shovel head 19 of the shoveling plate 18 and the shoveling plate body 20; in the drum back section 23 of the primary drum dryer 3, an angle of 90 degrees is formed between the shovel head 19 of the shoveling plate 18 and the shoveling plate body 20.

Because the compound fertilizer particles processed from the granulator 1 contain moisture, the compound fertilizer particles have small hardness and are easy to break, the shoveling plate 18 is not arranged in the front two meters of the roller 13 of the primary roller dryer 3, the compound fertilizer particles are pre-dried firstly, the hardness is increased, and the compound fertilizer particles which just enter the primary roller dryer 3 are prevented from being broken in the process of being shoveled by the shoveling plate 18. The smaller the angle between the shovel head 19 of the shoveling plate 18 and the shoveling plate body 20 is, the higher the compound fertilizer particles are shoveled. In the cylinder anterior segment 21 of one-level cylinder drying-machine 3, because the hardness of compound fertilizer granule is on the small side this moment, be 120 degrees angles between the shovel head 19 of shoveling plate 18 and the shoveling plate body 20, the pivoted in-process of cylinder 13, compound fertilizer granule is by the range of shoveling a little relatively, avoids compound fertilizer granule to be fried and has got too high, and is broken when dropping. In the cylinder middle section 22 and the back end of one-level cylinder drying-machine 3, the angle between shovel head 19 of shoveling plate 18 and shoveling plate body 20 is bigger, because compound fertilizer granule hardness is higher and higher this moment, is more difficult broken relatively, compound fertilizer granule is fried and is played a little relatively, increases with hot-air area of contact, does benefit to the stoving.

The utility model discloses a second grade high temperature is dried and is added one-level normal atmospheric temperature cooling and drying's structure, makes compound thoughtlessly fertile granule inside and outside all obtain effective stoving to guarantee its better particle hardness.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A compound thoughtlessly dry by fire a cold drying system of compound fertilizer, its characterized in that: the double-drying and one-cooling drying system of the compound fertilizer comprises a primary roller dryer, a secondary roller dryer and a roller cooler which are sequentially arranged from front to back, wherein a second conveying device is arranged between the primary roller dryer and the secondary roller dryer, a third conveying device is arranged between the secondary roller dryer and the roller cooler, the primary roller dryer, the secondary roller dryer and the roller cooler respectively comprise a front box body, a rear box body and a rotatable roller arranged between the front box body and the rear box body, the roller is downwards inclined by 10-15 degrees relative to a horizontal plane in the feeding direction and the discharging direction, a plurality of shoveling plates are uniformly arranged on the inner wall of the roller, the front box body and the rear box body are in sealing fit with the roller, a base is arranged below the roller, and a supporting roller component is arranged between the base and the roller, the outer circumference of cylinder is provided with the ring gear, be provided with driving motor on the base, the gear that driving motor's power take off set up with the ring gear meshing, the front end of preceding box is provided with preceding vent, the top of preceding box is provided with the feed inlet, the bottom of back box is provided with the discharge gate, the rear end of back box is provided with the back vent, the preceding vent of the preceding box of one-level cylinder drying-machine passes through the pipe fitting to be connected with the air outlet of first hot-blast furnace, the preceding vent of the preceding box of second grade cylinder drying-machine passes through the pipe fitting to be connected with the air outlet of second hot-blast furnace, the preceding vent of the preceding box of cylinder cooling-machine passes through the pipe fitting to be connected.

2. The compound fertilizer double-drying one-cold drying system according to claim 1, characterized in that: the drum of the first-stage drum dryer is 16-20 meters long, the drum of the second-stage drum dryer is 20-24 meters long, and the drum of the drum cooler is 16-20 meters long.

3. The compound fertilizer double-drying one-cold drying system as claimed in claim 2, wherein: the shoveling plate comprises a shoveling plate body perpendicular to the inner wall of the roller and a shovel head arranged at the front end of the shoveling plate body, and an angle of 90-120 degrees is formed between the shovel head and the shoveling plate body.

4. The compound fertilizer double-drying one-cold drying system according to claim 3, characterized in that: the shoveling plate is not arranged in the front two meters of the roller of the primary roller dryer; in the front section of the drum of the primary drum dryer, the shovel head of the shoveling plate and the shoveling plate body form an angle of 120 degrees; in the middle section of the drum of the primary drum dryer, the shovel head of the shoveling plate and the shoveling plate body form a 110-degree angle; in the rear section of the drum of the primary drum dryer, the shovel head of the shoveling plate and the shoveling plate body form a 90-degree angle.