Ventilation device at bottom of high compound fertilizer granulation tower

By combining natural ventilation and forced ventilation in the ventilation device at the bottom of the compound fertilizer granulation tower, the problem of high maintenance and installation costs of existing equipment has been solved, and normal ventilation has been achieved in the event of equipment failure, ensuring the stability and economy of production.

CN224121362UActive Publication Date: 2026-04-14HENAN XINHENGFENG FERTILIZER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing high-tower ventilation systems for compound fertilizer granulation have high maintenance and installation costs under forced ventilation, and once the equipment is damaged, it is difficult to carry out normal natural ventilation, which affects production efficiency and stability.

Method used

A ventilation device for the bottom of a compound fertilizer granulation tower was designed, combining natural ventilation and forced ventilation. Through the combination of self-ventilating vents, fastening rings, ventilation balls and arc plates, the device can flexibly switch between natural ventilation and forced ventilation, reduce maintenance and installation costs, and provide backup natural ventilation in case of equipment failure.

Benefits of technology

It enables normal natural ventilation in the event of equipment failure, reduces maintenance and installation costs, ensures production stability and continuity, reduces the operating costs of forced ventilation equipment, and provides a backup ventilation solution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compound fertilizer granulation towers, in particular to a bottom ventilation device of a compound fertilizer granulation tower, which comprises a fan box, a mounting cylinder, a mounting flange and a mounting component, the mounting cylinder is in threaded connection with a mounting position on the fan box, and the mounting flange penetrates through a fixing position on the mounting cylinder in a threaded manner. According to the utility model, when the ventilation device of the compound fertilizer granulation tower adopts a forced ventilation mode, the ventilation ball and the ventilation barrel can be mounted on the fan box and the mounting barrel for natural ventilation mounting, so that the forced ventilation of the fan box and the mounting barrel is prevented from generating a fault, and the safety of the compound fertilizer granulation tower is ensured. The ventilation ball and the ventilation barrel can conduct normal natural ventilation, normal ventilation of the high compound fertilizer granulation tower can be facilitated, the maintenance and installation cost can be reduced, normal natural ventilation is conducted on the bottom of the high compound fertilizer granulation tower, and normal work of the high compound fertilizer granulation tower can be recovered.
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Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer granulation tower technology, specifically a bottom ventilation device for compound fertilizer granulation tower. Background Technology

[0002] The high-tower ventilation system for compound fertilizer granulation utilizes natural ventilation, taking advantage of the principle that hot air rises and cold air sinks. Ventilation openings at the bottom of the tower allow cool outside air to flow naturally into the tower, creating convection currents with the rising hot air, thus achieving ventilation and cooling. This type of ventilation system is simple in structure and low in cost, but its ventilation effect is greatly affected by the ambient temperature and wind speed. Forced ventilation systems, on the other hand, typically use fans to force cool air into the bottom of the tower. Common fans include axial flow fans and centrifugal fans. This system can precisely control the ventilation volume and wind speed according to production needs, is unaffected by the external environment, and can effectively improve cooling efficiency and granulation quality, ensuring the stability and continuity of production.

[0003] The existing ventilation system for compound fertilizer granulation towers uses forced ventilation, which has high maintenance and installation costs. Once the forced ventilation system is damaged, it is difficult for the bottom of the compound fertilizer granulation tower to be ventilated naturally, which directly affects the working efficiency of the compound fertilizer granulation tower. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation device at the bottom of a compound fertilizer granulation tower to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bottom ventilation device for a compound fertilizer granulation tower includes a fan box, a mounting cylinder, a mounting flange, and an installation assembly. The mounting cylinder is threadedly connected to a mounting point on the fan box, and the mounting flange is threaded through a fixing point on the mounting cylinder. The installation assembly has a mounting cylinder and a mounting flange at its mounting point, and also includes [further details needed].

[0007] Natural ventilation components are installed on the fan box;

[0008] A sealing assembly is provided on the fan housing;

[0009] The mounting cylinder has a self-ventilating opening at the ventilation point, a high tower connecting pipe is threaded to the fastening point at the rear end of the mounting cylinder, a fixed flange is provided at the mounting point on the high tower connecting pipe, a reinforcing bolt is threaded through the mounting point on the fixed flange, an internal ventilation cylinder is fixed inside the mounting cylinder, and an insert plate groove is provided at the connecting point on the self-ventilating opening.

[0010] The compound fertilizer granulation tower bottom ventilation device described above: the mounting cylinder and the tower connecting pipe are self-ventilated through the self-ventilation port.

[0011] The ventilation device at the bottom of the compound fertilizer granulation tower as described above: the mounting cylinder and the tower connecting pipe are fastened to the bottom of the compound fertilizer granulation tower by reinforcing bolts.

[0012] The compound fertilizer granulation tower bottom ventilation device as described above: the natural ventilation component includes a fastening ring threadedly connected to the self-ventilating port, a ventilation cylinder is provided at the mounting point on the fastening ring, and a ventilation ball is threaded through the fixing point on the ventilation cylinder.

[0013] The ventilation device at the bottom of the compound fertilizer granulation tower as described above: the ventilation ball and the ventilation cylinder are installed on the self-ventilating opening by fastening rings.

[0014] The bottom ventilation device of the compound fertilizer granulation tower as described above: the sealing component includes an arc-shaped plate slidably mounted on the mounting cylinder, and a sliding rail is provided at the sliding part of the arc-shaped plate.

[0015] The compound fertilizer granulation tower bottom ventilation device as described above: the arc-shaped plate is slidably installed on the insert plate groove via a sliding rail, and the arc-shaped plate seals and blocks the self-ventilation opening.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: When the ventilation device of the compound fertilizer granulation tower adopts the forced ventilation method, the ventilation ball and ventilation cylinder can be installed on the fan box and the mounting cylinder for natural ventilation installation, which prevents the forced ventilation of the fan box and the mounting cylinder from malfunctioning. The ventilation ball and ventilation cylinder can carry out normal natural ventilation, which can not only facilitate the normal ventilation of the compound fertilizer granulation tower, but also reduce maintenance and installation costs. The bottom of the compound fertilizer granulation tower is ventilated by normal natural methods, which is conducive to restoring the normal operation of the compound fertilizer granulation tower.

[0017] The arc-shaped plate is slidably installed at the slot of the insert plate and the notch of the self-ventilation port via a sliding rail. It is used for natural ventilation sealing of the ventilation ball and ventilation cylinder. It can combine natural ventilation and forced ventilation. Users can adjust natural ventilation and forced ventilation according to the ventilation needs of the compound fertilizer granulation tower. This helps to reduce the operating cost of forced ventilation equipment, prevent forced ventilation equipment failure, and can also be used as a backup through natural ventilation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the mounting cylinder of this utility model;

[0020] Figure 3This is a schematic diagram of the structure of the natural ventilation component of this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing assembly of this utility model.

[0022] In the diagram: 1. Fan box; 2. Mounting cylinder; 3. Mounting flange; 4. Self-ventilating outlet; 5. Tower connecting pipe; 6. Fixed flange; 7. Reinforcing bolt; 8. Internal ventilation cylinder; 9. Insert plate slot; 10. Ventilation ball; 11. Ventilation cylinder; 12. Fastening ring; 13. Sliding rail; 14. Curved plate. Detailed Implementation

[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] Please see Figures 1 to 4 A ventilation device for the bottom of a high tower for compound fertilizer granulation is proposed, comprising a fan box 1, a mounting cylinder 2, a mounting flange 3, and mounting components.

[0027] The mounting point on the fan box 1 is threaded with a mounting cylinder 2, and the mounting cylinder 2 is threaded with a mounting flange 3. The mounting point on the mounting assembly is provided with a mounting cylinder 2 and a mounting flange 3. The natural ventilation assembly is mounted on the fan box 1. The sealing assembly is provided on the fan box 1.

[0028] The fan box 1 is movably mounted on the mounting cylinder 2, and the mounting flange 3 is threadedly fastened to the fan box 1 and the mounting cylinder 2. The fan box 1 and the mounting cylinder 2 can be assembled and snapped together. The fan box 1 forces cold air into the bottom of the tower. Existing fans include axial flow fans and centrifugal fans, which facilitates the installation of the fan box 1 and the mounting cylinder 2 at the bottom of the compound fertilizer granulation tower for forced ventilation.

[0029] The installation cylinder 2 has a self-ventilating opening 4 at the ventilation point, a high tower connecting pipe 5 is threadedly connected to the fastening point at the rear end of the installation cylinder 2, a fixed flange 6 is provided at the installation point on the high tower connecting pipe 5, a reinforcing bolt 7 is threaded through the installation point on the fixed flange 6, an internal ventilation cylinder 8 is fixed inside the installation cylinder 2, and a plate groove 9 is provided at the connecting point on the self-ventilating opening 4.

[0030] In this embodiment, the self-ventilating opening 4 is opened on the mounting cylinder 2, so that the connected tower connecting pipe 5 and the mounting cylinder 2 can be naturally ventilated through the self-ventilating opening 4. The tower connecting pipe 5 and the mounting cylinder 2 are fastened to the bottom of the compound fertilizer granulation tower by means of a fixed flange 6 and a reinforcing bolt 7. The bottom of the compound fertilizer granulation tower is ventilated through the tower connecting pipe 5 and the mounting cylinder 2. The built-in ventilation cylinder 8 is fixedly connected to the mounting cylinder 2 and connected to the insert plate groove 9. The insert plate groove 9 is connected to the self-ventilating opening 4 for natural ventilation.

[0031] Preferably, the installation cylinder 2 and the tower connecting pipe 5 are ventilated by a self-ventilating port 4, which is located on the installation cylinder 2 and the tower connecting pipe 5 that are connected and installed together. The compound fertilizer granulation tower is ventilated by the installation cylinder 2 and the tower connecting pipe 5.

[0032] Preferably, the mounting cylinder 2 and the tower connecting pipe 5 are fastened to the bottom of the compound fertilizer granulation tower by the reinforcing bolts 7. The fan box 1 and the mounting cylinder 2 are fixed to the bottom of the compound fertilizer granulation tower by the reinforcing bolts 7 and the fixing flange 6. The fan box 1 forces cold air into the bottom of the tower and performs forced ventilation by existing fans such as axial flow fans and centrifugal fans.

[0033] Please refer to Figure 1 and Figure 3 In this embodiment, the natural ventilation component includes a fastening ring 12 threadedly connected to the self-ventilation port 4, a ventilation cylinder 11 is provided at the mounting point on the fastening ring 12, and a ventilation ball 10 is threaded through the fixing point on the ventilation cylinder 11.

[0034] The fastening ring 12 is threaded onto the connection between the self-ventilating port 4 and the ventilation cylinder 11. The ventilation ball 10 and the ventilation cylinder 11 are fastened to the self-ventilating port 4. The ventilation ball 10 and the ventilation cylinder 11 can be connected and installed on the fan box 1 and the mounting cylinder 2 through the self-ventilating port 4 for natural ventilation.

[0035] Preferably, the ventilation ball 10 and ventilation cylinder 11 are installed on the self-ventilation port 4 by fastening ring 12. When the ventilation device of the compound fertilizer granulation tower adopts the forced ventilation method, the ventilation ball 10 and ventilation cylinder 11 can be installed on the fan box 1 and the mounting cylinder 2 for natural ventilation installation, which prevents the forced ventilation of the fan box 1 and the mounting cylinder 2 from failing. The ventilation ball 10 and ventilation cylinder 11 can carry out normal natural ventilation, which can not only facilitate the normal ventilation of the compound fertilizer granulation tower, but also reduce maintenance and installation costs. The bottom of the compound fertilizer granulation tower is ventilated by normal natural method, which is conducive to restoring the normal operation of the compound fertilizer granulation tower.

[0036] Please refer to Figure 3 and Figure 4 In this embodiment, the sealing assembly includes an arc-shaped plate 14 that is slidably mounted on the mounting cylinder 2, and a sliding rail 13 is provided at the sliding part of the arc-shaped plate 14.

[0037] The arc-shaped plate 14 is slidably installed on the mounting cylinder 2 and the insert plate groove 9 via the sliding rail 13 for sealing. This allows the user to manually pull out and open the arc-shaped plate 14, connecting the ventilation ball 10 and the ventilation cylinder 11 to the fan box 1 and the mounting cylinder 2. If the forced ventilation device at the bottom of the compound fertilizer granulation tower is damaged, the arc-shaped plate 14 can be slidably opened, connecting the ventilation ball 10 and the ventilation cylinder 11 to the bottom of the compound fertilizer granulation tower for normal natural ventilation.

[0038] Preferably, the arc-shaped plate 14 is slidably installed on the insert plate groove 9 via the sliding rail 13. The arc-shaped plate 14 seals and blocks the self-ventilation port 4. The arc-shaped plate 14 is slidably installed at the notch of the insert plate groove 9 and the self-ventilation port 4 via the sliding rail 13. It is used for natural ventilation sealing of the ventilation ball 10 and the ventilation cylinder 11. It can combine natural ventilation and forced ventilation. Users can adjust natural ventilation and forced ventilation according to the ventilation needs of the compound fertilizer granulation tower. This helps to reduce the operating cost of forced ventilation equipment, prevent forced ventilation equipment failure, and can also be used as a backup through natural ventilation.

[0039] As can be seen from the above, during use, the fan box 1 forces cold air into the bottom of the high tower. Existing fans, such as axial flow fans and centrifugal fans, facilitate the installation of the fan box 1 and the mounting cylinder 2 at the bottom of the compound fertilizer granulation high tower for forced ventilation. The arc plate 14 is slidably installed at the notch of the insertion plate groove 9 and the ventilation port 4 via the sliding rail 13, and is used for natural ventilation sealing of the ventilation ball 10 and the ventilation cylinder 11. Natural ventilation and forced ventilation can be combined. Users can adjust natural ventilation and forced ventilation according to the ventilation needs of the compound fertilizer granulation high tower.

[0040] The ventilation ball 10 and ventilation cylinder 11 are securely installed on the self-ventilation port 4. The ventilation ball 10 and ventilation cylinder 11 can be connected to the fan box 1 and the mounting cylinder 2 through the self-ventilation port 4 for natural ventilation. The ventilation ball 10 and ventilation cylinder 11 can be connected to the fan box 1 and the mounting cylinder 2. If the forced ventilation device at the bottom of the compound fertilizer granulation tower is damaged, the arc plate 14 can be slid open, and the ventilation ball 10 and ventilation cylinder 11 can be connected to the bottom of the compound fertilizer granulation tower for normal natural ventilation.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ventilation device at the bottom of a compound fertilizer granulation tower, comprising a fan box (1), a mounting cylinder (2), a mounting flange (3), and a mounting assembly, wherein the mounting cylinder (2) is threadedly connected to the mounting point on the fan box (1), and the mounting flange (3) is threadedly passed through the fixing point on the mounting cylinder (2), and the mounting cylinder (2) and the mounting flange (3) are provided at the mounting point on the mounting assembly, characterized in that: It also includes a natural ventilation component, installed on the fan box (1); A sealing assembly is provided on the fan housing (1); The installation cylinder (2) has a self-ventilating opening (4) at the ventilation point. The fastening point at the rear end of the installation cylinder (2) is threaded with a high tower connecting pipe (5). The installation point on the high tower connecting pipe (5) is provided with a fixing flange (6). The installation point on the fixing flange (6) is threaded with a reinforcing bolt (7). The installation cylinder (2) has an internal ventilation cylinder (8) fixed inside. The self-ventilating opening (4) has a plate slot (9) at the connecting point.

2. The bottom ventilation device for a compound fertilizer granulation tower according to claim 1, characterized in that, The mounting cylinder (2) and the tower connecting pipe (5) are self-ventilated through the self-ventilation port (4).

3. The bottom ventilation device for a compound fertilizer granulation tower according to claim 1, characterized in that, The mounting cylinder (2) and the tower connecting pipe (5) are fastened to the bottom of the compound fertilizer granulation tower by a reinforcing bolt (7).

4. The bottom ventilation device for a compound fertilizer granulation tower according to claim 1, characterized in that, The natural ventilation assembly includes a fastening ring (12) threaded onto the self-ventilating port (4), a ventilation cylinder (11) is provided at the mounting point on the fastening ring (12), and a ventilation ball (10) is threaded through the fixing point on the ventilation cylinder (11).

5. The bottom ventilation device for a compound fertilizer granulation tower according to claim 4, characterized in that, The ventilation ball (10) and the ventilation cylinder (11) are mounted on the self-ventilating port (4) by a fastening ring (12).

6. The bottom ventilation device for a compound fertilizer granulation tower according to claim 1, characterized in that, The sealing assembly includes an arc-shaped plate (14) that is slidably mounted on the mounting cylinder (2), and a sliding rail (13) is provided at the sliding part of the arc-shaped plate (14).

7. The bottom ventilation device for a compound fertilizer granulation tower according to claim 6, characterized in that, The arc-shaped plate (14) is slidably mounted on the insert groove (9) via the sliding rail (13), and the arc-shaped plate (14) seals and blocks the self-ventilation port (4).