CN210711332U

CN210711332U - Compound fertilizer granulating device

Info

Publication number: CN210711332U
Application number: CN201921562250.9U
Authority: CN
Inventors: 向铁军; 张振宇; 刘爱华; 易百科; 罗志敏; 柳美红; 胥君良
Original assignee: Hunan Gold Leaf Public Expectation Technology Co ltd
Current assignee: Hunan Gold Leaf Public Expectation Technology Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-06-09
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a compound fertilizer prilling granulator, include: a frame; the granulating roller is rotatably arranged on the rack, one end of the granulating roller is a feeding end, the other end of the granulating roller is a discharging end, the height of the feeding end is higher than that of the discharging end, a discharging check ring is arranged at the discharging end, an inner check ring is arranged in the granulating roller, an inner cavity of the granulating roller is divided into a mixing chamber close to one side of the feeding end and a granulating chamber close to one side of the discharging end by the inner check ring, and the mixing chamber is communicated with the granulating chamber; the central supporting tube penetrates through the granulating roller along the length direction of the granulating roller, two ends of the central supporting tube extend out of two ends of the granulating roller, a steam adding component used for adding steam into the mixing chamber is arranged in the central supporting tube, and a liquid ammonia adding component and a dilute sulfuric acid tube used for adding liquid ammonia and dilute sulfuric acid into the mixing chamber respectively are further arranged on the outer side of the central supporting tube. The compound fertilizer granulating device has the advantages of difficult caking of materials, good mixing uniformity of slurry and powder and good granulating quality of products.

Description

Compound fertilizer granulating device

Technical Field

The utility model relates to a compound fertilizer production technical field particularly, relates to a compound fertilizer prilling granulator.

Background

The compound fertilizer plays a very important role in agricultural production, the quality of the compound fertilizer directly affects the yield of crops, and the production process of the compound fertilizer by the ammonia-acid method is a mainstream production process widely adopted by a plurality of compound fertilizer enterprises at present.

The granulator is an essential device in the production process of the compound fertilizer and is mainly used for granulating finished or semi-finished fertilizers so as to meet the quality requirement of the products.

In the existing granulation process for producing the compound fertilizer by the ammonia acid method, powdery solid raw materials and slurry formed by neutralization reaction of ammonia acid need to be rolled and agglomerated into granules by a granulator. The traditional granulator is easy to be adhered into large blocks and has low balling rate in the process of producing the compound fertilizer by the ammonia-acid method due to strong material viscosity; meanwhile, the slurry formed by the neutralization reaction of the amino acid is directly added into the powdery raw material, so that the problem of uneven mixing of the slurry and the powdery raw material is easily caused, and the granulation quality of the product is influenced; furthermore, it is not easy to replenish water into the granulation apparatus according to the granulation conditions, and it is also not easy to clean the granulation apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a compound fertilizer prilling granulator, this compound fertilizer prilling granulator material is difficult for caking, thick liquids and powder mixing uniformity are good, product granulation is of high quality.

In order to realize the above purpose, the utility model provides a compound fertilizer prilling granulator, compound fertilizer prilling granulator includes:

a frame;

the granulation roller is rotatably arranged on the rack, two ends of the granulation roller are both of an open structure, one end of the granulation roller is a feeding end, the other end of the granulation roller is a discharging end, the feeding end is higher than the discharging end, a discharging check ring is arranged at the discharging end, an inner check ring is arranged in the granulation roller, an inner cavity of the granulation roller is divided into a mixing chamber close to one side of the feeding end and a granulation chamber close to one side of the discharging end by the inner check ring, and the mixing chamber is communicated with the granulation chamber;

the central support tube is arranged in the granulation roller in a penetrating mode along the length direction of the granulation roller, the two ends of the central support tube extend out of the two ends of the granulation roller, a steam adding assembly used for adding steam into the material mixing chamber is arranged in the central support tube, and a liquid ammonia adding assembly and a dilute sulfuric acid tube used for adding liquid ammonia and dilute sulfuric acid into the material mixing chamber respectively are further arranged on the outer side of the central support tube.

Further, compound fertilizer prilling granulator still includes:

the washing liquid pipeline extends into the granulation roller from the discharge end of the granulation roller, and extends to the mixing chamber along the length direction of the granulation roller in an inclined manner, and a washing liquid spraying port is arranged on the washing liquid pipeline.

Further, the water vapor addition assembly comprises:

the steam adding pipe penetrates through the central supporting pipe, extends into the granulating roller from the discharge end of the granulating roller and obliquely extends upwards to the mixing chamber along the length direction of the granulating roller, and a branch pipe on the steam adding pipe extends out of the central supporting pipe;

and the steam spray pipe is connected to one end of the branch pipe extending out of the central supporting pipe, and extends towards the lower part of the mixing chamber.

Further, the liquid ammonia adding assembly comprises:

the liquid ammonia adding pipeline extends into the granulation roller from the discharge end of the granulation roller and extends into the mixing chamber along the length direction of the granulation roller in an inclined and upward manner;

liquid ammonia spray tube, liquid ammonia spray tube are connected and are added the pipeline and stretch into the indoor part of compounding in liquid ammonia, and the liquid ammonia spray tube extends towards the lower part of compounding room.

Furthermore, the outside of center stay tube is equipped with first backup pad and second backup pad, and first backup pad is connected with the vapor spray tube, and the second backup pad is connected with the liquid ammonia spray tube, has all seted up washing liquid pipe mounting hole and dilute sulfuric acid pipe mounting hole in first backup pad and the second backup pad, and washing liquid pipeline and dilute sulfuric acid pipe wear to establish respectively in washing liquid pipe mounting hole and dilute sulfuric acid pipe mounting hole.

Furthermore, a dilute sulfuric acid pipe extends into the mixing chamber from the feeding end of the granulating roller, the dilute sulfuric acid pipe extends downwards from the feeding end along the length direction of the granulating roller, and a dilute sulfuric acid adding hole is formed in the dilute sulfuric acid pipe.

Furthermore, the compound fertilizer granulation device also comprises a roller driving motor, the output end of the roller driving motor is connected with a speed reducer, a driving gear is installed on the output shaft of the speed reducer, a gear ring is installed on the outer wall of the granulation roller, the gear ring is meshed with the driving gear, a plurality of groups of supporting wheels are also installed on the frame, and the granulation roller is installed on the supporting wheels in a rolling manner.

Use the technical scheme of the utility model, separate into blending room and granulation room with granulation cylinder's inner chamber through retaining ring in setting up, set up central stay tube in granulation cylinder to set up vapor in central stay tube and add the subassembly, set up liquid ammonia in the outside of central stay tube and add subassembly and dilute sulfuric acid pipe. This compound fertilizer prilling granulator during operation, it is indoor to put into the compounding from the feed end with the compound fertilizer powder raw materials who treats the granulation, add subassembly and dilute sulfuric acid pipe through liquid ammonia and add liquid ammonia and dilute sulfuric acid in to powder raw materials respectively, add the subassembly through vapor and let in vapor, powder raw materials and liquid ammonia and dilute sulfuric acid intensive mixing are even under granulation cylinder's rotation, utilize the reaction heat of liquid ammonia and dilute sulfuric acid and the produced viscidity material of reaction to granulate powder raw materials, add the water content that the subassembly can also control the material through vapor. The compound fertilizer granulating device has the advantages of good mixing uniformity of slurry and powder, difficult caking of the material and good granulating quality of the product.

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

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an external structure diagram of a compound fertilizer granulation device of the embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of a granulation roller in the compound fertilizer granulation apparatus of the embodiment of the present invention.

Fig. 3 is a schematic view of the discharge end of the compound fertilizer granulating apparatus according to the embodiment of the present invention.

Fig. 4 is a schematic view of a feed end of a compound fertilizer granulating device according to an embodiment of the present invention.

Fig. 5 is an installation schematic diagram of a second supporting plate in the compound fertilizer granulation device of the embodiment of the present invention.

Fig. 6 is an installation schematic diagram of the first supporting plate in the compound fertilizer granulation apparatus according to the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a second supporting plate in the compound fertilizer granulation apparatus according to the embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a first supporting plate in the compound fertilizer granulation apparatus according to the embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a liquid ammonia spray pipe in the compound fertilizer granulation apparatus according to the embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a steam nozzle in the compound fertilizer granulation apparatus according to the embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a frame; 20. a granulation drum; 21. a feeding end; 22. a discharge end; 23. a discharge retainer ring; 24. an inner retainer ring; 25. a mixing chamber; 26. a granulation chamber; 27. a ring gear; 30. a central support tube; 41. a steam addition pipe; 42. a water vapor nozzle; 51. liquid ammonia is added into a pipeline; 52. a liquid ammonia spray pipe; 60. a dilute sulfuric acid pipe; 70. a washing liquid conduit; 80. a first support plate; 90. a second support plate; 100. a wash liquor pipe mounting hole; 110. a dilute sulfuric acid pipe mounting hole; 120. a drum driving motor; 130. a speed reducer; 140. a drive gear; 150. a riding wheel.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather the intention is merely to facilitate a distinction between corresponding parts. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Referring to fig. 1 to 10, a compound fertilizer granulation apparatus according to an embodiment of the present invention mainly includes: a frame 10, a granulation roller 20, a central support pipe 30, a water vapor adding component, a liquid ammonia adding component and a dilute sulphuric acid pipe 60. Wherein, the granulation roller 20 is rotatably installed on the frame 10, both ends of the granulation roller 20 are open structures, one end of the granulation roller 20 is a feeding end 21, the other end is a discharging end 22, and the height of the feeding end 21 is higher than that of the discharging end 22; a discharge retainer ring 23 is arranged at the discharge end 22, an inner retainer ring 24 is arranged in the granulation roller 20, the inner retainer ring 24 divides the inner cavity of the granulation roller 20 into a mixing chamber 25 close to the feed end 21 and a granulation chamber 26 close to the discharge end 22, and the mixing chamber 25 is communicated with the granulation chamber 26; the central supporting tube 30 is inserted into the granulation drum 20 along the length direction of the granulation drum 20, two ends of the central supporting tube 30 extend out from two ends of the granulation drum 20, a steam adding component for adding steam into the mixing chamber 25 is arranged in the central supporting tube 30, and a liquid ammonia adding component and a dilute sulfuric acid tube 60 for respectively adding liquid ammonia and dilute sulfuric acid into the mixing chamber 25 are further arranged outside the central supporting tube 30.

In the compound fertilizer granulating device, the inner cavity of the granulating drum 20 is divided into the mixing chamber 25 and the granulating chamber 26 by arranging the inner retainer ring 24, the central support pipe 30 is arranged in the granulating drum 20, the water vapor adding component is arranged in the central support pipe 30, and the liquid ammonia adding component and the dilute sulfuric acid pipe 60 are arranged outside the central support pipe 30. This compound fertilizer prilling granulator during operation, the compound fertilizer powdery raw materials who treats the granulation is put into the mixing room 25 from feed end 21 in, add subassembly and dilute sulfuric acid pipe 60 respectively to powdery raw materials in adding liquid ammonia and dilute sulfuric acid through liquid ammonia, add the subassembly through vapor and let in vapor, powdery raw materials and liquid ammonia and dilute sulfuric acid intensive mixing are even under granulation cylinder 20's rotation, utilize the reaction heat of liquid ammonia and dilute sulfuric acid and the produced viscidity material of reaction to granulate powdery raw materials, add the water content that the subassembly can also control the material through vapor. The compound fertilizer granulation device has the advantages of good mixing uniformity of slurry and powder, difficult caking of the material and good granulation quality of the product.

Further, referring to fig. 2, in this embodiment, the compound fertilizer granulating apparatus further includes a washing liquid pipe 70, the washing liquid pipe 70 extends into the granulating drum 20 from the discharging end 22 of the granulating drum 20, and extends into the mixing chamber 25 obliquely upward along the length direction of the granulating drum 20, and the washing liquid pipe 70 is provided with a washing liquid spraying port. So set up, can conveniently let in the washing liquid in granulation cylinder 20 through this washing liquid pipeline 70 after the granulation is accomplished, conveniently wash compound fertilizer prilling granulator.

Specifically, referring to fig. 2, 3 and 6, in the present embodiment, the water vapor addition assembly includes a water vapor addition tube 41 and a water vapor lance 42. Wherein, the steam adding pipe 41 is arranged in the central supporting pipe 30 in a penetrating way, the steam adding pipe 41 extends into the granulation roller 20 from the discharge end 22 of the granulation roller 20 and extends into the mixing chamber 25 along the length direction of the granulation roller 20 in an inclined way, and the branch pipe on the steam adding pipe 41 extends out from the central supporting pipe 30; a steam lance 42 is connected to the end of the branch pipe extending from the central support pipe 30, the steam lance 42 extending towards the lower part of the mixing chamber 25. The part of the steam feed pipe 41 extending into the mixing chamber 25 is connected to a plurality of steam nozzles 42, and the plurality of steam nozzles 42 are arranged along the length direction of the steam feed pipe 41. Since the water vapor tends to flow upward, the water vapor addition pipe 41 is provided to extend obliquely upward along the length of the granulation drum 20, and the water vapor is more favorably introduced into the mixing chamber 25.

Specifically, referring to fig. 2, 3 and 5, in the present embodiment, the liquid ammonia adding module includes a liquid ammonia adding pipe 51 and a liquid ammonia nozzle 52. Wherein, the liquid ammonia adding pipeline 51 extends into the granulation roller 20 from the discharge end 22 of the granulation roller 20, and extends into the mixing chamber 25 along the length direction of the granulation roller 20 in an inclined and upward manner; a liquid ammonia nozzle 52 is connected to a portion of the liquid ammonia adding pipe 51 projecting into the mixing chamber 25, the liquid ammonia nozzle 52 extending toward a lower portion of the mixing chamber 25. Since liquid ammonia partly changes into gaseous state when flowing through the liquid ammonia addition pipe 51, the liquid ammonia addition pipe 51 extends obliquely upward along the length direction of the granulation drum 20, which is more advantageous for passing liquid ammonia into the mixing chamber 25.

Referring to fig. 5 and 6, in the present embodiment, a first support plate 80 and a second support plate 90 are disposed outside the central support tube 30, the first support plate 80 is connected to the steam nozzle 42, the second support plate 90 is connected to the liquid ammonia nozzle 52, a washing liquid tube mounting hole 100 and a dilute sulfuric acid tube mounting hole 110 are formed in each of the first support plate 80 and the second support plate 90, and the washing liquid tube 70 and the dilute sulfuric acid tube 60 are respectively inserted into the washing liquid tube mounting hole 100 and the dilute sulfuric acid tube mounting hole 110. With this arrangement, the wash liquid conduit 70 and the dilute sulfuric acid pipe 60 can be reliably installed outside the center support pipe 30.

Referring to fig. 2, in the present embodiment, a dilute sulfuric acid pipe 60 extends from the feed end 21 of the granulation drum 20 into the mixing chamber 25, and the dilute sulfuric acid pipe 60 extends from the feed end 21 in a downward inclination along the length direction of the granulation drum 20, and a dilute sulfuric acid feeding hole is provided on the dilute sulfuric acid pipe 60. With the above arrangement, since the dilute sulfuric acid has a high density, the dilute sulfuric acid pipe 60 is extended from the feed end 21 in a downward inclination in the longitudinal direction of the granulation drum 20, and the dilute sulfuric acid is introduced from the feed end 21 and flows into the lower end of the dilute sulfuric acid pipe 60 by its own weight.

Referring to fig. 1, in this embodiment, the compound fertilizer granulating apparatus further includes a roller driving motor 120, an output end of the roller driving motor 120 is connected to a speed reducer 130, a driving gear 140 is mounted on an output shaft of the speed reducer 130, a gear ring 27 is mounted on an outer wall of the granulating roller 20, the gear ring 27 is engaged with the driving gear 140, a plurality of sets of riding wheels 150 are further mounted on the frame 10, and the granulating roller 20 is rotatably mounted on the riding wheels 150.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The compound fertilizer granulating device is characterized by comprising:

a frame (10);

the granulating drum (20) is rotatably installed on the rack (10), two ends of the granulating drum (20) are both in an open structure, one end of the granulating drum (20) is a feeding end (21), the other end of the granulating drum is a discharging end (22), the height of the feeding end (21) is higher than that of the discharging end (22), a discharging check ring (23) is arranged at the discharging end (22), an inner check ring (24) is arranged in the granulating drum (20), the inner cavity of the granulating drum (20) is divided into a mixing chamber (25) close to one side of the feeding end (21) and a granulating chamber (26) close to one side of the discharging end (22) by the inner check ring (24), and the mixing chamber (25) is communicated with the granulating chamber (26);

the central support pipe (30) is arranged in the granulation roller (20) in a penetrating mode in the length direction of the granulation roller (20), the two ends of the central support pipe (30) extend out of the two ends of the granulation roller (20), a steam adding component used for adding steam into the mixing chamber (25) is arranged in the central support pipe (30), and a liquid ammonia adding component and a dilute sulfuric acid pipe (60) used for adding liquid ammonia and dilute sulfuric acid into the mixing chamber (25) respectively are further arranged on the outer side of the central support pipe (30).

2. The compound fertilizer granulation apparatus as defined in claim 1, further comprising:

the washing liquid pipeline (70) extends into the granulating drum (20) from the discharge end (22) of the granulating drum (20), and extends into the mixing chamber (25) along the length direction of the granulating drum (20) in an inclined manner, and a washing liquid spray opening is formed in the washing liquid pipeline (70).

3. A compound fertilizer granulation apparatus as defined in claim 2, wherein the steam addition assembly comprises:

the steam adding pipe (41) is arranged in the central supporting pipe (30) in a penetrating mode, the steam adding pipe (41) extends into the granulating drum (20) from the discharge end (22) of the granulating drum (20) and obliquely extends upwards into the mixing chamber (25) along the length direction of the granulating drum (20), and branch pipes on the steam adding pipe (41) extend out of the central supporting pipe (30);

a water vapor nozzle (42) connected to an end of the branch pipe protruding from the central support pipe (30), the water vapor nozzle (42) extending toward a lower portion of the mixing chamber (25).

4. A compound fertilizer granulation apparatus as defined in claim 3, wherein the liquid ammonia addition assembly comprises:

a liquid ammonia adding pipeline (51), wherein the liquid ammonia adding pipeline (51) extends into the granulation roller (20) from the discharge end (22) of the granulation roller (20) and obliquely extends upwards to the mixing chamber (25) along the length direction of the granulation roller (20);

a liquid ammonia nozzle (52), liquid ammonia nozzle (52) are connected pipeline (51) is added to the liquid ammonia and is stretched into to the part in mixing chamber (25), liquid ammonia nozzle (52) orientation the lower part of mixing chamber (25) extends.

5. A compound fertilizer granulation apparatus as defined in claim 4, wherein a first support plate (80) and a second support plate (90) are provided outside the central support tube (30), the first support plate (80) is connected to the steam nozzle (42), the second support plate (90) is connected to the liquid ammonia nozzle (52), the first support plate (80) and the second support plate (90) are provided with a washing liquid tube mounting hole (100) and a dilute sulfuric acid tube mounting hole (110), and the washing liquid tube (70) and the dilute sulfuric acid tube (60) are respectively inserted into the washing liquid tube mounting hole (100) and the dilute sulfuric acid tube mounting hole (110).

6. A compound fertilizer granulation apparatus as defined in claim 1, wherein said dilute sulphuric acid pipe (60) extends from said feed end (21) of said granulation drum (20) into said mixing chamber (25), and said dilute sulphuric acid pipe (60) extends from said feed end (21) obliquely downwards along the length of said granulation drum (20), said dilute sulphuric acid pipe (60) being provided with a dilute sulphuric acid addition hole.

7. A compound fertilizer granulating apparatus as claimed in any one of claims 1 to 6, further comprising a drum driving motor (120), wherein an output end of the drum driving motor (120) is connected with a speed reducer (130), a driving gear (140) is mounted on an output shaft of the speed reducer (130), a gear ring (27) is mounted on an outer wall of the granulating drum (20), the gear ring (27) is engaged with the driving gear (140), a plurality of sets of riding wheels (150) are further mounted on the frame (10), and the granulating drum (20) is mounted on the riding wheels (150) in a rolling manner.