Environment-friendly granulation device

Abstract

The utility model discloses an environment-friendly granulation device, which belongs to the field of granulation devices, solves the problem that the existing granulation tower body is large in dust amount and causes harm to surrounding personnel when in use, and comprises a feeding piece, a granulation tower body, an airflow channel and a negative pressure fan. According to the granulation tower, materials can be stably input into the granulation tower body, then a negative-pressure area is formed in the granulation tower body through circulation of the negative-pressure fan and external air, heat exchange is achieved between the materials and the air, part of the materials form particles, the rest of dust materials mixed with gas rise along the gas pipeline, and after follow-up spraying, the materials are discharged into the granulation tower body. By means of the device, harmful components in gas are reduced, the final emission reaches the national standard, the overall working process of the device is safer, machined granular materials can be rapidly screened, unqualified materials are reguided into the granulation tower body after being machined, and the machining quality of the device is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of granulation equipment, and specifically relates to an environmentally friendly granulation device. Background Technology

[0002] In existing chemical production facilities, the processing of materials such as compound fertilizers, porous materials, and urea requires multiple processes, among which granulation is the most common. This process transforms materials of different shapes into spherical solid particles, facilitating subsequent collection. High-tower granulation is the most frequently used method for granulating materials.

[0003] High-tower granulation methods generally produce a lot of dusty gas. Although this can be mitigated by exhaust systems, direct exposure to dusty and dusty gas environments poses a significant health risk to operators and maintenance personnel. For example, the operating environment in the granulation tower of a porous ammonium nitrate unit is harsh. Because the bottom uses a grid plate, hot, dusty gas rises, and operators have to endure the dual challenges of hot and dusty gas. They may even need to wear gas masks to inspect and maintain valves and granulation nozzles, which is extremely unfriendly to the physical contact of operators and maintenance personnel. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0006] An environmentally friendly granulation device includes a feeding component, a granulation tower, an airflow channel, and a negative pressure fan. A feeding component for inputting processed materials is installed on one side of the granulation tower. Multiple sets of airflow channels are installed inside the granulation tower to assist in conveying dust-containing gas. Multiple sets of negative pressure fans are installed on the surface of the granulation tower to absorb dust inside. A spraying mechanism is installed inside the granulation tower to spray the dust-containing gas. A screening mechanism for conveying the shaped material is installed at the bottom outlet of the granulation tower. A packing layer for filtering the gas is installed inside the granulation tower at the top of the airflow channel.

[0007] As a preferred technical solution of this utility model, the feeding component includes a material input pipe, a granulation pipe and a granulation nozzle. The material input pipe is fixedly installed on the side of the granulation tower body and is connected to the granulation tower body. Multiple sets of granulation pipes are connected to the end of the material input pipe. The granulation nozzle is fixedly installed at the end of the granulation pipe and sprays the material through the granulation nozzle.

[0008] As a preferred technical solution of this utility model, an air inlet groove for introducing external air is provided at the lower end of the inner wall of the granulation tower.

[0009] As a preferred technical solution of this utility model, the spraying mechanism includes a storage bin, a pump body, a feeding pipe, a spraying pipe, and spraying nozzles. The storage bin is installed inside the granulation tower body, the pump body is located on the side of the storage bin, the pump body and the storage bin are connected by a pipe, the feeding pipe is fixedly installed at the output end of the pump body, the spraying pipe is installed at the end of the feeding pipe, and multiple sets of spraying nozzles that spray washing liquid are installed on both sides of the spraying pipe.

[0010] As a preferred technical solution of this utility model, the spraying mechanism further includes a waste inflow area and a waste discharge pipe. The granulation tower body is provided with a waste inflow area at the top of the storage silo to guide the recovery of washing liquid. The waste inflow area is connected to the storage silo, and the side of the feeding pipe is connected to the waste discharge pipe that outputs the washing liquid with excessive dust content in the storage silo.

[0011] As a preferred technical solution of this utility model, the screening mechanism includes a vibrating screen, a mixing tank, a conveying pipe and a feeding pipe. The vibrating screen is installed at the bottom opening of the granulation tower body, the mixing tank is set on the side of the vibrating screen, a feeding pipe is installed on one side of the top of the mixing tank, and a conveying pipe is set on the side of the mixing tank to draw in the mixed material inside the mixing tank and feed it into the feeding component.

[0012] As a preferred embodiment of this utility model, the airflow channels are provided in multiple sets, and the surface of the airflow channels is equipped with conical rain caps.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, by setting up a feeding component, a spraying mechanism, and a negative pressure fan, materials can be stably input into the granulation tower. Then, by utilizing the negative pressure fan and the circulation of external air, a negative pressure zone is formed inside the granulation tower, allowing the materials to exchange heat with the air. This causes some materials to granulate, while the remaining dusty materials, mixed with gas, rise along the gas pipeline. After subsequent spraying and filtration, the harmful components in the gas are reduced, ensuring that the final emissions meet national standards. This makes the overall workflow of the equipment safer. Furthermore, the processed granular materials can be quickly screened, and unqualified materials can be reprocessed and reintroduced into the granulation tower, ensuring the processing quality of the equipment itself. Attached Figure Description

[0015] Figure 1 This is a plan view of the overall structure of this utility model.

[0016] Figure 2 This is a plan view of the feeding component structure of this utility model.

[0017] Figure 3 This is a plan view of the spray mechanism structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the screening mechanism in this utility model.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] 1. Feeding component; 11. Material input pipe; 12. Granulation pipe; 13. Granulation nozzle; 2. Granulation tower body; 3. Airflow channel; 4. Negative pressure fan; 5. Spraying mechanism; 51. Storage silo; 52. Pump body; 53. Feeding pipe; 54. Spraying pipe; 55. Spray nozzle; 56. Waste inflow area; 57. Waste discharge pipe; 6. Screening mechanism; 61. Vibrating screen; 62. Mixing tank; 63. Conveying pipe; 64. Feeding pipe; 7. Packing layer. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0024] Depend on Figure 1As shown, this is a schematic diagram of the structure of the environmentally friendly granulation device in this embodiment, including a feeding component 1, a granulation tower body 2, an airflow channel 3, and a negative pressure fan 4. The feeding component 1 for inputting the processed material is installed on one side of the outer side of the granulation tower body 2. Multiple sets of airflow channels 3 are installed inside the granulation tower body 2 to assist in the transportation of dust-containing gas. Multiple sets of negative pressure fans 4 are installed on the surface of the granulation tower body 2 to absorb dust inside the granulation tower body 2. A spraying mechanism 5 is installed inside the granulation tower body 2 to spray the dust-containing gas. A screening mechanism 6 for conveying the shaped material is installed at the bottom outlet of the granulation tower body 2. A packing layer 7 for filtering the gas is installed inside the granulation tower body 2 at the top of the airflow channel 3.

[0025] During operation, the material to be processed is fed into the granulation tower 2 by the feeding component 1. The material is then sprayed out from inside the granulation tower 2. The negative pressure fan 4 creates a negative pressure zone inside the granulation tower 2, which exchanges heat with the high-temperature droplets sprayed by the feeding component 1. The air temperature gradually rises to 30~40°C and contains a small amount of fine powder. Clean and smooth particles are formed at the bottom, which are easy for subsequent components to collect and process. The gas containing powder flows upward along the airflow channel 3 under the action of the negative pressure fan 4. Through the cooperation of the packing layer 7 and the spraying mechanism 5, the gas containing powder is washed and filtered, thus purifying the gas. Finally, under the action of the negative pressure fan 4, the filtered gas is discharged directly from the top of the granulation tower 2.

[0026] From the appendix Figure 2 As shown, this is a structural schematic diagram of the feeding component 1 in this embodiment. The feeding component 1 includes a material input pipe 11, a granulation pipe 12, and a granulation nozzle 13. The material input pipe 11 is fixedly installed on the side of the granulation tower body 2 and is connected to the granulation tower body 2. Multiple sets of granulation pipes 12 are connected to the end of the material input pipe 11. The granulation nozzle 13 is fixedly installed at the end of the granulation pipe 12 and sprays the material through the granulation nozzle 13.

[0027] During use, liquid material is fed into the granulation tower 2 through the material input pipe 11 and the granulation pipe 12. The material is processed by the granulation nozzle 13, so that some of the material is formed into granules and discharged directly from the bottom of the granulation tower 2, while the remaining powdery material flows upward under the action of the negative pressure fan 4.

[0028] From the appendix Figure 1 As shown, an air inlet groove is provided at the lower end of the inner wall of the granulation tower body 2 to introduce external air. During use, it is convenient for external air to enter the interior of the granulation tower body 2 and to better exchange heat with the material sprayed by the granulation nozzle 13.

[0029] From the appendix Figure 3As shown, this is a schematic diagram of the spraying mechanism 5 in this embodiment. The spraying mechanism 5 includes a storage bin 51, a pump body 52, a feeding pipe 53, a spraying pipe 54, and spray nozzles 55. The storage bin 51 is installed inside the granulation tower body 2. The pump body 52 is located on the side of the storage bin 51. The pump body 52 and the storage bin 51 are connected by a pipe. The feeding pipe 53 is fixedly installed at the output end of the pump body 52. ​​The spraying pipe 54 is installed at the end of the feeding pipe 53, and multiple sets of spray nozzles 55 that spray washing liquid are installed on both sides of the spraying pipe 54.

[0030] The user, through the cooperation of the storage hopper 51 and the pump body 52, inputs the washing liquid into the spray pipe 54 through the feed pipe 53. Then, through the cooperation of the spray pipe 54, a spray area is formed inside the granulation tower 2 to clean and filter the dust-containing gas flowing along the airflow channel 3. With the help of the packing layer 7, the gas can be stably filtered to ensure the purity of the discharged gas.

[0031] From the appendix Figure 3 As shown, it is a structural schematic diagram of the spraying mechanism 5 in this embodiment. The spraying mechanism 5 also includes a waste inflow area 56 and a waste discharge pipe 57. The granulation tower body 2 is provided with a waste inflow area 56 at the top of the storage bin 51 to guide the recovery of washing liquid. The waste inflow area 56 is connected to the storage bin 51, and the side of the feeding pipe 53 is connected to the waste discharge pipe 57 that outputs the washing liquid with excessive dust content in the storage bin 51.

[0032] During use, through the waste inflow zone 56 and the inner cover plate of the granulation tower 2, the powder-containing washing liquid after spraying re-enters the storage silo 51 along the waste inflow zone 56, which facilitates the pump body 52 to re-extract and reuse the internal liquid, realizing the recycling of the washing liquid. When the dust content of the washing liquid in the storage silo 51 is too high, the liquid in the storage silo 51 is discharged through the waste discharge pipe 57, and then some demineralized water is added to reduce the concentration of the liquid in the storage silo 51, ensuring that the air after washing meets the national emission standards.

[0033] From the appendix Figure 4 As shown, this is a schematic diagram of the screening mechanism 6 in this embodiment. The screening mechanism 6 includes a vibrating screen 61, a mixing tank 62, a conveying pipe 63, and a feeding pipe 64. The vibrating screen 61 is installed at the bottom opening of the granulation tower body 2. The mixing tank 62 is located on the side of the vibrating screen 61. A feeding pipe 64 is installed on one side of the top of the mixing tank 62. A conveying pipe 63 is provided on the side of the mixing tank 62 to draw in the mixed material inside the mixing tank 62 and feed it into the feeding component 1.

[0034] During use, the vibrating screen 61 is used to screen and filter granular materials, and some of the materials that meet the specifications are directly discharged, while the unqualified materials are fed into the mixing tank 62. The mixing tank 62 is used to process and treat the materials. The liquid materials are fed into the mixing tank 62 through the conveying pipe 64 to mix them thoroughly. Then, the liquid materials are fed back into the feeding component 1 through the conveying pipe 63 so that they can be reprocessed.

[0035] From the appendix Figure 1 As shown, multiple sets of airflow channels 3 are provided, and conical rain caps are installed on the surface of airflow channels 3. During use, these can prevent the washing liquid falling from the packing layer 7 from entering the airflow channels 3, ensuring that the air inside the granulation tower 2 is dry and that the auxiliary equipment operates stably.

[0036] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An environmentally friendly granulation device, characterized in that, The granulation tower includes a feeding component (1), a granulation tower body (2), an airflow channel (3), and a negative pressure fan (4). The feeding component (1) for inputting the processed material is installed on one side of the granulation tower body (2). Multiple sets of airflow channels (3) for assisting in the conveying of dust-containing gas are installed inside the granulation tower body (2). Multiple sets of negative pressure fans (4) for sucking up dust inside the granulation tower body (2) are installed on the surface of the granulation tower body (2). A spraying mechanism (5) for spraying dust-containing gas is installed inside the granulation tower body (2). A screening mechanism (6) for conveying the shaped material is installed at the bottom outlet of the granulation tower body (2). A packing layer (7) for filtering gas is installed inside the granulation tower body (2) at the top of the airflow channel (3).

2. The environmentally friendly granulation device according to claim 1, characterized in that: The feeding component (1) includes a material input pipe (11), a granulation pipe (12), and a granulation nozzle (13). The material input pipe (11) is fixedly installed on the side of the granulation tower body (2) and is connected to the granulation tower body (2). Multiple sets of granulation pipes (12) are connected to the end of the material input pipe (11). The granulation nozzle (13) is fixedly installed at the end of the granulation pipe (12) and sprays the material through the granulation nozzle (13).

3. The environmentally friendly granulation device according to claim 1, characterized in that: An air inlet slot for introducing external air is provided at the lower end of the inner wall of the granulation tower body (2).

4. The environmentally friendly granulation device according to claim 1, characterized in that: The spraying mechanism (5) includes a storage bin (51), a pump body (52), a feeding pipe (53), a spraying pipe (54), and spray nozzles (55). The storage bin (51) is installed inside the granulation tower body (2). The pump body (52) is located on the side of the storage bin (51). The pump body (52) is connected to the storage bin (51) through a pipe. The feeding pipe (53) is fixedly installed at the output end of the pump body (52). The spraying pipe (54) is installed at the end of the feeding pipe (53), and multiple sets of spray nozzles (55) that spray washing liquid are installed on both sides of the spraying pipe (54).

5. The environmentally friendly granulation device according to claim 4, characterized in that: The spraying mechanism (5) also includes a waste inflow area (56) and a waste discharge pipe (57). The granulation tower body (2) is provided with a waste inflow area (56) at the top of the storage bin (51) to guide the recovery of washing liquid. The waste inflow area (56) is connected to the storage bin (51), and the side of the feeding pipe (53) is connected to the waste discharge pipe (57) that outputs the washing liquid with excessive dust content in the storage bin (51).

6. The environmentally friendly granulation device according to claim 1, characterized in that: The screening mechanism (6) includes a vibrating screen (61), a mixing tank (62), a conveying pipe (63), and a feeding pipe (64). The vibrating screen (61) is installed at the bottom opening of the granulation tower body (2). The mixing tank (62) is located on the side of the vibrating screen (61). A feeding pipe (64) is installed on one side of the top of the mixing tank (62). A conveying pipe (63) is provided on the side of the mixing tank (62) to draw the mixed material inside the mixing tank (62) and feed it into the feeding component (1).

7. The environmentally friendly granulation device according to claim 1, characterized in that: The airflow channel (3) is provided in multiple sets, and the surface of the airflow channel (3) is equipped with a conical rain cap.

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