Rotary atomizer protection device

Abstract

The utility model belongs to the anti -incrustation and protection device technical field of rotary atomizer, concretely relates to a rotary atomizer protection device. The protection device is sleeved on the atomizer body, and it includes the protection wind sleeve, the upper end of protection wind sleeve is provided with the cylindrical sleeve, the symmetrical installation of cylindrical sleeve is provided with a plurality of protection air pipes, the upper end of protection air pipe is provided with the air inlet, the air inlet is linked with compressed air main pipeline, the lower end of protection air pipe is linked with protection wind sleeve, protection wind sleeve is the conical sleeve, and its lower end is provided with the air outlet, and the air outlet is arranged above the rotary atomizing disc. The protection device provided by the utility model can protect the atomizer from the corrosion of strong acid gas, cool the atomizing disc, prevent the atomizer vibration from rising caused by lime slurry return slurry, thereby guaranteeing the normal operation of the rotary atomizer.

Description

Technical Field

[0001] This utility model belongs to the technical field of anti-scaling and protection devices for rotary atomizers, and relates to a device for corrosion protection of the rotary atomizer body, as well as cooling of the atomizing disc and prevention of backflow and scaling, specifically a rotary atomizer protection device. Background Technology

[0002] Rotary atomizers are the main equipment in acid removal towers. They operate in environments with temperatures ranging from 190 to 230 degrees Celsius, where the flue gas contains highly corrosive acid gases such as sulfur dioxide and hydrogen chloride. This high-temperature, highly acidic environment easily corrodes the atomizer equipment. The high rotation speed of the rotating atomizing disc causes the sprayed lime slurry to float erratically and easily return to the disc. When the lime slurry returns to the surface of the disc, it causes scaling and loss of dynamic balance, leading to increased vibration. Greater vibration results in more severe damage to the atomizer, necessitating removal of the atomizer and cleaning of the disc. This disrupts normal acid removal operation, increases workload, and pollutes the environment, impacting environmental protection standards.

[0003] Existing rotary atomizer devices are designed with an outer and inner protective cylinder. A fan blows air into the gap between the inner and outer cylinders of the atomizing disc, and the airflow from the bottom of the outer cylinder cools the rotating atomizing disc and uses air pressure to create an air curtain above the atomized lime slurry, further cooling the disc and preventing it from rising and causing scale buildup. However, in actual operation, the outer protective cylinder fails to provide complete protection, showing signs of corrosion with each inspection. When the bottom of the outer protective cylinder corrodes, the air pressure disperses, failing to prevent the lime slurry from rising, necessitating daily cleaning of the atomizer, sometimes multiple times a day. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to propose a rotating atomizer protection device. This device can protect the atomizer from corrosion by strong acid gas, cool the atomizing disc, and prevent the atomizer vibration from rising due to lime slurry backflow, thereby ensuring the normal operation of the rotating atomizer.

[0005] The technical solution of this utility model is:

[0006] A protective device for a rotary atomizer, the protective device being sleeved on the atomizer body, includes a protective air sleeve, the upper end of the protective air sleeve being provided with a cylindrical sleeve, a plurality of protective air tubes being symmetrically installed inside the cylindrical sleeve, the upper end of the protective air tube being provided with an air inlet, the air inlet being connected to a compressed air main pipeline, the lower end of the protective air tube being connected to the protective air sleeve, the protective air sleeve being a conical sleeve, the lower end of which is provided with an air outlet, the air outlet being located above the rotary atomizing disc;

[0007] Compressed air enters through the air inlet and passes through the protective air duct into the protective air sleeve. After being evenly distributed inside the protective air sleeve to form positive pressure, it is sprayed out from the air outlet onto the rotating atomizing disc.

[0008] Furthermore, based on the size and structure of the atomizer body, the lower part of the protective air sleeve is designed to be tapered and have a smaller diameter, forming a conical structure that is larger at the top and smaller at the bottom.

[0009] Furthermore, the protective sleeve and the cylindrical sleeve are fixedly connected by flanges and bolts.

[0010] Furthermore, the flange is fixedly installed on the atomizer body, and the flange is provided with a plurality of bolt holes for mounting bolts.

[0011] Furthermore, the protective air duct is a detachable stainless steel pipe, and two protective air ducts are symmetrically installed inside a cylindrical sleeve.

[0012] Furthermore, the air inlet of the protective air duct is connected to the main compressed air pipeline via a quick connector, and the main compressed air pipeline is equipped with a regulating valve for adjusting the pressure.

[0013] Furthermore, the protective air sleeve is provided with supporting stiffeners, which are located at the lower end of the protective air sleeve, and there are three stiffeners in total.

[0014] The beneficial effects of this utility model are:

[0015] (1) The rotary atomizer protection device provided by this utility model can effectively prevent the atomizer body from being corroded in strong acid gas, and can also cool the atomizing plate to prevent lime slurry from returning and causing the atomizer vibration to rise, reduce the number of cleaning times, ensure normal environmental protection indicators and normal boiler operation, and reduce workload.

[0016] (2) This utility model designs and installs a protective device on the atomizer body, and uses compressed air to purge and prevent corrosion of the body. The air outlet gas is evenly dispersed on the surface of the atomizing disc to cool the atomizing disc and prevent lime slurry from returning to the surface. This solves the problems of corrosion of the body caused by defects in the original equipment and increased vibration caused by lime slurry returning to the surface and scaling. Attached Figure Description

[0017] Figure 1 Side view of an atomizer equipped with a protective device provided for this utility model;

[0018] Figure 2 Side view of an atomizer equipped with a protective device provided for this utility model;

[0019] Figure 3A cross-sectional view of an atomizer with only the protective air sleeve installed, provided for this utility model;

[0020] Figure 4 Side view of the protective device provided by this utility model;

[0021] In the above diagrams, 1. Air inlet; 2. Quick connector; 3. Protective air duct; 4. Atomizer body; 5. Flange; 6. Protective air sleeve; 7. Rib plate; 8. Rotating atomizing disc; 9. Track groove; 10. Bolt; 11. Air outlet. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In the description of this utility model, it should be noted that the terms "inner", "outer", "upper", "lower", etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 4 As shown, this utility model relates to a protective device for a rotary atomizer, which is sleeved on the atomizer body 4. The protective device consists of a protective air sleeve 6 and a cylindrical sleeve arranged vertically. The protective air sleeve 6 is installed at the lower part of the atomizer body 4, and the cylindrical sleeve is provided at the upper end of the protective air sleeve 6. Several protective air pipes 3 are symmetrically installed inside the cylindrical sleeve. The upper end of the protective air pipe 3 is provided with an air inlet 1, which is connected to the main compressed air pipeline.

[0025] In this specific embodiment, two protective air ducts 3 are symmetrically installed inside the cylindrical sleeve. The protective air ducts 3 are made of detachable stainless steel. The lower end of the protective air duct 3 is connected to the protective air sleeve 6. The lower part of the protective air sleeve 6 is made with a tapered shape according to the outer diameter of the atomizer, and is designed as a conical structure with a larger upper part and a smaller lower part. That is, the protective air sleeve 6 is a conical sleeve, and an air outlet 11 is provided at its lower end. The air outlet 11 is located above the rotating atomizing disc 8.

[0026] Compressed air is supplied through inlet 1 and enters the protective air sleeve 6 via protective air duct 3. The compressed air is evenly distributed within the protective air sleeve 6, creating positive pressure. It is then evenly sprayed out from outlet 11, landing on the surface of the rotating atomizing disc 8 and spreading evenly in all directions. This cools the rotating atomizing disc 8 and forms an air curtain on its surface. At this time, any lime slurry that rises is blown away by the gas, preventing it from returning to the surface of the rotating atomizing disc 8 and causing scaling, which would affect the normal operation of the atomizer. The compressed air also serves a cooling function, thus preventing corrosion of the atomizer body 4.

[0027] In practical applications, a protective sleeve 6 and a cylindrical sleeve are manufactured based on the dimensions and structure of the atomizer body 4. From Figure 2 As can be seen above, the upper cross-section of the atomizer body 4 has a hexagonal structure; the lower part of the atomizer body 4 is cylindrical. Therefore, the cylindrical sleeve fitted on the atomizer body 4 contacts and connects with the six sides of the atomizer body 4, while leaving sufficient space at the side positions of the atomizer body 4; while the conical protective sleeve 6 is fitted on the lower part of the atomizer body 4, so that the compressed air ejected from the air outlet 11 can be directly facing the rotating atomizing disc 8.

[0028] The protective air sleeve 6 is fixedly connected to the cylindrical sleeve. In one specific embodiment, the protective air sleeve 6 and the cylindrical sleeve are fixedly connected by a flange 5 and bolts 10. The flange 5 is fixedly installed on the atomizer body 4. The flange 5 has three bolt holes for mounting bolts 10 and a reserved hole for the passage of the protective air duct 3. The flange 5 is a customized structure, and its thickness is controlled between 5 and 8 mm. In another specific embodiment, when the atomizer body 4 is provided with shock-absorbing pads and track grooves 9, the positions for the shock-absorbing pads and track grooves 9 are reserved below the customized connecting flange 5, and the surface of the flange 5 is sealed with a silicone gasket.

[0029] In this embodiment, the compressed air main pipeline and the protective air duct 3 are connected via quick connectors 2. The compressed air main pipeline is designed with double quick connectors 2 to achieve quick connection and installation between the air inlet 1 of the protective air duct 3 and the compressed air main pipeline. Simultaneously, a regulating valve is installed on the compressed air main pipeline to allow for pressure adjustment. Similarly, the protective air duct 3 and the protective air sleeve 6 bracket can also be installed and connected via quick connectors 2.

[0030] During installation, simply remove the rotating atomizing disc 8, insert it from below the atomizer, and secure it with bolts 10. To prevent the nut from loosening and falling off, bolts 10 have cotter pins on the top.

[0031] To prevent the protective air sleeve 6 from deforming due to high temperatures during use, three reinforcing ribs 7 are evenly welded inside the protective air sleeve 6 for support. Figure 4 As shown, the stiffening plate 7 is welded to the lower end of the protective sleeve 6 to provide support.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, alterations, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective device for a rotary atomizer, characterized in that, The protective device is fitted onto the atomizer body and includes a protective air sleeve. The upper end of the protective air sleeve is provided with a cylindrical sleeve, and several protective air pipes are symmetrically installed inside the cylindrical sleeve. The upper end of the protective air pipe is provided with an air inlet, which is connected to the main compressed air pipeline. The lower end of the protective air pipe is connected to the protective air sleeve. The protective air sleeve is a conical sleeve with an air outlet at its lower end, which is located above the rotating atomizing disc.

2. The rotary atomizer protection device according to claim 1, characterized in that, Based on the size and structure of the atomizer body, the lower part of the protective sleeve is designed to be tapered and have a smaller diameter, forming a conical structure that is larger at the top and smaller at the bottom.

3. The rotary atomizer protection device according to claim 1, characterized in that, The protective sleeve and the cylindrical sleeve are fixedly connected by flanges and bolts.

4. The rotary atomizer protection device according to claim 3, characterized in that, The flange is fixedly installed on the atomizer body, and the flange is provided with a number of bolt holes for mounting bolts.

5. The rotary atomizer protection device according to claim 1, characterized in that, The protective air duct is a detachable stainless steel pipe, and two protective air ducts are symmetrically installed inside a cylindrical sleeve.

6. The rotary atomizer protection device according to claim 1, characterized in that, The air inlet of the protective air duct is connected to the main compressed air pipeline via a quick connector, and the main compressed air pipeline is equipped with a regulating valve for adjusting the pressure.

7. The rotary atomizer protection device according to claim 1, characterized in that, The protective air sleeve is provided with ribs for support. The ribs are located at the lower end of the protective air sleeve, and there are 3 ribs.

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