CN220176797U - Granulation equipment - Google Patents

Abstract

The utility model provides granulation equipment, which comprises a drying chamber with hot air, wherein a spray head system for spraying wet materials into the drying chamber after shaping and breaking is arranged at the top of the drying chamber, and a particle recovery system is arranged at the bottom of the drying chamber. The utility model can directly dry the water-soluble materials or thick materials with high concentration into larger granular products, simplifies the complex processes of spray drying into fine powder and then fluidization granulation in the past, forms once, greatly improves the production efficiency and reduces the energy consumption. The granulating equipment has simple structure, the materials can be dried and granulated, auxiliary binding materials such as any addition and the like are not needed, and the basic regular section-shaped fluffy particles with the particle size of more than 250 mu m can be directly prepared, and the moisture content is not more than 6%.

Description

Granulation equipment

Technical Field

The utility model relates to the technical field of chemical equipment, in particular to granulating equipment.

Background

Granulation (or pelletization) refers to the operation of adding a binder to a powder to form solid particles of a certain shape and size and good flowability. There are six general granulation methods: (1) coating granulation; (2) extrusion granulation; (3) adsorption granulation; (4) rotary disk granulation; (5) fluid bed granulation; and (6) a spray granulation method.

The various granulation methods have respective weights and differences, such as different costs and densities of substances inside and outside coating granulation, and a granulation mode of secondary processing, weight increasing and energization of the multipurpose formed particles or semi-formed particles; extrusion molding granulation of multipurpose thermoplastic materials, such as plastic granulation processing, compact granules and high hardness; adsorption granulation is similar to coating granulation, wherein a layer of new material is coated outside the formed or semi-formed particles or powder in an adsorption mode, the relative density of the particles is low, and the coating layer is easy to fall off; the disc type granulation is mainly realized by a granulation mode that a rotating disc rotates rapidly, the viscous material is enabled to bond other materials into a group and wrap the group in the rolling process by friction between the material and the rotating disc, and the spherical or ellipsoidal particles with loose particle centers or sugar cores, harder middle and harder outer shells and easy variability in extrusion are frequently produced. The fluidized bed and spray granulation method are favored in various fields such as pharmacy and food because the manufactured particles have uniform chemical components and loose particles, are easy to carry out secondary processing, use or quick dissolution in the subsequent process, and the like, but the particle size of the fluidized bed and spray granulation method is relatively small, especially the spray granulation method is difficult to effectively exceed 250um.

Accordingly, the prior art is subject to further development.

Disclosure of Invention

The utility model aims to overcome the technical defects and provide granulation equipment to solve the technical problems of loose particles prepared in the related technology, small particle size or large, compact and uneven particle size.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: the utility model provides a granulation equipment, including the drying chamber that lets in has steam, drying chamber top is equipped with builds shape with wet material, spouts the shower nozzle system of drying chamber after the section is broken, and the drying chamber bottom is equipped with granule recovery system.

Further, the nozzle system is provided with a feeding pipe and a rotary nozzle, one end of the feeding pipe is connected with the material supply equipment, and the other end of the feeding pipe is connected with the rotary nozzle.

Further, a material spraying pipeline is arranged in the rotary spray head, an inlet of the material spraying pipeline is communicated with an outlet of the feeding pipe, and material enters the inlet of the material spraying pipeline from the outlet of the feeding pipe and then is sprayed to the drying chamber along the material spraying pipeline.

Further, the rotary spray head is disc-shaped, a plurality of material spraying pipelines are arranged, and the plurality of material spraying pipelines are radially distributed in the rotary spray head from the central position of the disc-shaped rotary spray head.

Further, the material spraying pipeline is an arc pipeline.

Further, a compressed air driving port for providing power for the rotary spray head is arranged on the rotary spray head, and the opening direction of the driving port is obliquely arranged relative to the upper surface of the rotary spray head.

Further, the particle recovery system comprises a discharging pipe and a separator, wherein the discharging pipe is communicated with the drying chamber, and materials and hot gas after being dried in the drying chamber enter the separator through the discharging pipe to carry out gas-solid separation.

Further, the granulating equipment also comprises a hot gas system for providing hot gas for the drying chamber, wherein the hot gas system comprises an air inlet pipe and a gas heating device, and the gas enters the drying chamber through an air outlet of the air inlet pipe after being heated by the gas heating device.

Further, an air inlet of the air inlet pipe is positioned at the upper part of the drying chamber and is arranged corresponding to the spray head system.

Further, the drying chamber is of a conical structure with a wide upper end and a narrow lower end.

The beneficial effects are that:

1. the utility model can directly dry the water-soluble materials or thick materials with high concentration into larger granular products, simplifies the complex processes of spray drying into fine powder and then fluidization granulation in the past, forms once, greatly improves the production efficiency and reduces the energy consumption.

2. The granulating equipment provided by the utility model has a simple structure, the materials can be dried and granulated, and auxiliary binding materials such as any addition and the like are not required to be added.

3. The utility model can directly prepare the segmental fluffy particles with the particle diameter of more than 250 mu m and basically regular, and the moisture content is not more than 6 percent.

Drawings

FIG. 1 is a schematic view of a granulating apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a spray head system of a granulating apparatus according to an embodiment of the utility model;

fig. 3 is a top view of a spray head system of a pelletizing apparatus employed in an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

1. a drying chamber; 2. a spray head system; 21. rotating the spray head; 22. a feed pipe; 23. a material ejection line; 24. a compressed air inlet pipe; 25. a spray head connector; 26. a head rotator; 3. a particle recovery system; 31. a discharge pipe; 32. a separator; 33. an exhaust pipe; 34. a material receiving tank; 35. a discharge tube connector; 4. a hot gas system; 41. an air inlet pipe; 42. a heating device; 421. a power line connector; 422. an inlet of the electric heating tube; 423. a filter screen; 5. an access panel; 6. a viewing mirror.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

According to an embodiment of the present utility model, referring to fig. 1 to 3, a granulating apparatus is provided, which includes a drying chamber 1 through which hot air is introduced, a nozzle system 2 for spraying wet material into the drying chamber after forming and breaking is provided at the top of the drying chamber 1, and a particle recovery system 3 is provided at the bottom of the drying chamber 1. The granulating equipment firstly builds the wet materials into shaped and broken sections into section-shaped particles through the nozzle system 2, and the section-shaped particles are dispersed in the drying chamber 1, so that the wet materials are conveniently subjected to heat exchange with hot air to be dried; the granule recovery system 3 separates the hot gas after heat exchange from the material, and the granulated material is collected.

In a specific embodiment, referring to fig. 2 and 3, the nozzle system 2 has a feed pipe 22 and a rotary nozzle 21, wherein one end of the feed pipe 22 is connected to a material supply device, and the other end of the feed pipe 22 is connected to the rotary nozzle 21. Specifically, the spray head system 2 is located directly above the drying chamber 1, and after being driven by a pump from a material supply device, high-concentration water-soluble materials are input into the rotary spray head 21 through the feed pipe 22, and the rotary spray head 21 rotates, so that the materials are dispersed in the radial direction, and meanwhile, a jet of continuous materials is folded to form a short section with a certain length.

In a specific embodiment, referring to fig. 2 and 3, a material spraying pipeline 23 is disposed in the rotary nozzle 21, an inlet of the material spraying pipeline 23 is communicated with an outlet of the feeding pipe 22, and the material is sprayed to the drying chamber along the material spraying pipeline 23 after entering an inlet of the material spraying pipeline 23 from an outlet of the feeding pipe 22. The material is rotationally ejected along the material ejection line 23 to the drying chamber 1.

In a specific embodiment, referring to fig. 2 and 3, the rotary nozzle 21 has a disc shape, a plurality of material ejection pipelines 23, and a plurality of material ejection pipelines 23 are radially distributed in the rotary nozzle 21 from the center of the disc-shaped rotary nozzle 21. Specifically, the number of the material ejection pipes 23 may be two, and the material may flow from the center of the spin head 21 to the edge of the spin head 21 along the path of the material ejection pipe 23 after entering the spin head 21, and be ejected to the drying chamber under the rotation of the spin head 21.

In a specific embodiment, referring to fig. 2 and 3, the material ejection pipe 23 is an arc pipe. Compared with a straight line pipeline, the powder is not dispersed into small particles before solidification and molding, granulation is facilitated, the straight line pipeline is generally used for spray drying, the particle size of a finished product is generally smaller, and the powder is suitable for being made into fine powder.

In a specific embodiment, referring to fig. 2 and 3, the rotary sprayer 21 is provided with a compressed air driving port for providing power for the rotary sprayer 21, and the opening direction of the driving port is inclined relative to the upper surface of the rotary sprayer 21. The opening direction of the driving port is inclined relative to the upper surface of the rotary nozzle 21 so that the pulse compressed air can be driven, and if the pulse compressed air vertically enters, the pulse compressed air cannot rotate. Specifically, the pulse compressed air further drives the rotary nozzle 21 to accelerate and rotate, so that the materials are fully dispersed in the radial direction.

In a specific embodiment, referring to fig. 1, the granulation apparatus further comprises a hot gas system 4 for providing hot gas to the drying chamber, the hot gas system comprising an inlet pipe 41 and a gas heating device 42, the gas being heated by the gas heating device 42 and entering the drying chamber 1 through the outlet of the inlet pipe 41. The hot gas system 4 inputs the heated gas into the drying chamber 1, contacts the broken and dispersed wet material nipple, and the hot gas takes away the moisture, so that the wet material nipple is dried into the nodular particles.

In a specific embodiment, referring to fig. 1, an air inlet of an air inlet pipe 41 is provided at an upper portion of the drying chamber corresponding to the shower head system 2. Specifically, the air inlet and the rotary nozzle 21 are in the same horizontal plane, and hot air entering through the air inlet is directly contacted with the material sprayed out by the nozzle system 2, so that the material enters the drying chamber 1 for instant drying.

In a specific embodiment, referring to fig. 1, the drying chamber 1 has a tapered structure with a wide upper end and a narrow lower end. The upper part of the drying chamber 1 is wide, and the material sprayed by rotation is molded and cannot be adhered to the inner wall of the equipment; when the material falls to the lower part, the material is dried, the conical structure is similar to a cyclone separator, so that the material is conveniently collected, and meanwhile, the tail gas and the wet air are more conveniently discharged from the system under the action of an induced draft fan through a pipeline, so that the drying and granulating process is continuous.

This is specifically illustrated by example 1.

Example 1:

the embodiment provides large-particle granulating equipment for water-soluble materials, taking sodium carboxymethylcellulose water-soluble materials as an example, the drying chamber 1 provides a closed environment, and heat exchange and gas-solid separation of gas and materials are realized; the spray head system 2 enables the water-soluble wet materials to be in the shape of segment particles and to be distributed around the drying chamber 1 in a dispersed manner, so that the heat exchange of hot air and the gas-solid separation are facilitated; the hot gas system 4 is used for heating the filtered purified air and providing enough heat for vaporizing the moisture in the wet material; the separator 32 of the particle recovery system 3 separates the gas from the material, the gas is discharged through the gas discharge pipe 33, the gas discharge pipe 33 is connected with the drying chamber 1 through the discharge pipe connector 35, and the granulated material is collected in the material receiving tank 34.

In the above structure, the material is ejected from the material ejection pipe 23 through the material ejection pipe 23 by the material ejection pipe 23 in the rotating portion of the rotary head 21, the rotary head 21 is driven to rotate, and the material is connected to the material ejection pipe 22 through the head connector 25; the rotary nozzle 21 is driven to rotate by the nozzle rotator 26, and meanwhile pulse compressed air enters from a compressed air driving port through a compressed air inlet pipe 24 to further accelerate the rotary nozzle to drive rotation, so that materials are rapidly thrown out and broken off to form a section-shaped material. Specifically, upon impact of the pulse compressed air, the impact force is the driving force, so that the rotary sprayer rotates under the control of the sprayer rotator 26. The pulsed compressed air provides the driving force and the nozzle rotator 26 is a restricting track.

Specifically, the power line connector 421 of the electric heating pipe is electrically connected, room temperature air is filtered by the filter screen 423 from the electric heating pipe inlet 422 and then heated to 150 ℃, enters the drying chamber 1 from the top side of the drying chamber 1 through the air inlet pipe 41, heat exchange occurs between the hot air and the short-section wet material, and the hot air with the temperature reduced carries water vapor and is led to the exhaust pipe 33 to be exhausted; the heated short-section wet material is evaporated and dried into large particles, is settled to a discharge pipe 31, and then continuous hot air enters a separator 32, gas is discharged, and the material is received by a receiving tank 34.

Meanwhile, the flowing process and the changing phenomenon of the materials and the air flow can be observed and recorded through the observation mirror 6 by means of an external light source. When the equipment is cleaned and maintained, the access window 5 can be opened for maintenance.

Of course, the granulation device can also be used for large-particle granulation of polyacrylamide water-soluble materials.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.

The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The integrated units in the above embodiments may be stored in the above-described computer-readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present utility model may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing one or more computer devices (which may be personal computers, servers or network devices, etc.) to perform all or part of the steps of the method described in the embodiments of the present utility model.

In the foregoing embodiments of the present utility model, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In several embodiments provided by the present utility model, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present utility model may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (9)

1. The granulating equipment is characterized by comprising a drying chamber through which hot air is introduced, wherein a spray head system for spraying wet materials into the drying chamber after shaping and breaking is arranged at the top of the drying chamber, and a particle recovery system is arranged at the bottom of the drying chamber; the spray head system is provided with a feeding pipe and a rotary spray head, one end of the feeding pipe is connected with the material supply equipment, and the other end of the feeding pipe is connected with the rotary spray head.

2. The granulating apparatus of claim 1, wherein the rotary nozzle has a material discharge line disposed therein, an inlet of the material discharge line being in communication with an outlet of the feed tube, and material being discharged from the outlet of the feed tube into the inlet of the material discharge line along the material discharge line to the drying chamber.

3. The granulation apparatus as claimed in claim 2, wherein the rotary nozzle has a disk shape, and the material discharge pipes are plural, and the plural material discharge pipes are radially distributed in the rotary nozzle from a central position of the disk-shaped rotary nozzle.

4. A granulation apparatus as claimed in claim 3, wherein the material discharge line is an arcuate line.

5. Granulation apparatus according to claim 1, characterized in that the rotary nozzle is provided with a compressed air driving opening for powering the rotary nozzle, the opening direction of the compressed air driving opening being arranged obliquely with respect to the upper surface of the rotary nozzle.

6. The granulation apparatus as claimed in claim 1, wherein the granule recovery system comprises a discharge pipe and a separator, the discharge pipe being in communication with the drying chamber, and the material dried in the drying chamber and the hot gas being fed into the separator through the discharge pipe for gas-solid separation.

7. The granulation apparatus as set forth in claim 1, further comprising a hot gas system for supplying hot gas to the drying chamber, the hot gas system comprising an air inlet pipe and a gas heating device, the gas being heated by the gas heating device and then introduced into the drying chamber through an air outlet of the air inlet pipe.

8. Granulation apparatus according to claim 7, characterized in that the air inlet of the air inlet pipe is positioned in the upper part of the drying chamber in correspondence of the nozzle system.

9. Granulation apparatus according to claim 1, characterized in that said drying chamber has a conical structure with a wide upper end and a narrow lower end.