Dry desulfurization back-to-warehouse purging device

Abstract

The utility model belongs to the technical field of desulfurization device purging equipment, and relates to a dry desulfurization return bin purging device which comprises an air inlet pipe, an induced draft fan is arranged on the air inlet pipe, an air supply pipeline is led out of the induced draft fan, the rear end of the air supply pipeline is connected with an upper air pipeline and a lower air pipeline, the upper air pipeline is connected to a conical hopper, and the lower air pipeline is connected to a star-shaped grid valve. Blockage is eliminated through compressed air purging, the structure is simple, maintenance is convenient, the method is simple, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of desulfurization device purging equipment, and in particular relates to a dry desulfurization return warehouse purging device. Background Art

[0002] The 125-ton CDQ dry quenching furnace circulating flue gas dry desulfurization device uses a high-efficiency desulfurizer to react with SO2 in the circulating flue gas to achieve the desulfurization effect. The main component of the high-efficiency desulfurizer is Ca(OH)2. The high-efficiency desulfurizer stored in the silo enters the pipeline through a conical bucket and a star-shaped format valve, and is blown into the circulating flue gas for mixed desulfurization using a Roots blower.

[0003] Since the particle size distribution of the high-efficiency desulfurizer (325 mesh screening rate) is ≥90.00% and the BET specific surface area, m2 / g ≥40.0, the desulfurizer is very easy to be blocked above the star-shaped format valve.

[0004] Therefore, a dry desulfurization return warehouse purge device is proposed. Utility Model Content

[0005] The utility model aims to provide a dry desulfurization return warehouse purge device, which has a dry desulfurization return warehouse purge function and solves the problem that the desulfurizer in the prior art is very easy to be blocked above the star-shaped format valve.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is that the utility model provides a dry desulfurization return warehouse purge device, including an air inlet pipe, on which an induced draft fan is arranged, and an air supply duct is led out of the induced draft fan. The rear end of the air supply duct is connected to an upwind duct and a downwind duct, the upwind duct is connected to a conical bucket, and the downwind duct is connected to a star-shaped format valve.

[0007] Preferably, the air supply duct is connected to the upwind duct and the downwind duct via a tee.

[0008] Preferably, an upwind valve is provided on the upwind duct.

[0009] Preferably, a downwind valve is provided on the downwind duct.

[0010] Preferably, the air inlet pipe is connected to a compressed air source.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. The utility model eliminates blockage by blowing with compressed air, has a simple structure, is easy to maintain, has a simple method, and improves work efficiency;

[0013] 2. The utility model has the function of returning to the warehouse and blowing after dry desulfurization, which solves the problem that the desulfurizer in the prior art is very easy to be blocked above the star-shaped format valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0015] Figure 1 It is a structural schematic diagram of a dry desulfurization return warehouse purge device;

[0016] In the above figure, 1. air intake pipe, 2. induced draft fan, 3. air supply duct, 4. upwind duct, 5. conical bucket, 6. downwind duct, 7. star-shaped format valve, 8. upwind valve, 9. downwind valve. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] Embodiment 1, as Figure 1 As shown, a dry desulfurization return warehouse purge device includes an air inlet pipe 1, which provides a purge air source to ensure that air can enter smoothly. The air inlet pipe 1 has a simple structure and reliable connection to ensure that sufficient purge air source can be obtained. An induced draft fan 2 is provided on the air inlet pipe 1, and the induced draft fan 2 drives the air flow to transport the air source from the air inlet pipe 1 inward. The maintenance is simple, the operation is stable, and strong air flow is provided.

[0020] The induced draft fan 2 leads to an air supply duct 3, the rear end of which is connected to an upwind duct 4 and a downwind duct 6. The air supply duct 3 distributes the air source delivered by the induced draft fan 2 to the upwind duct 4 and the downwind duct 6, which can evenly distribute the air and ensure the purging effect. The upwind duct 4 is connected to a conical bucket 5, which is loaded with a high-efficiency desulfurizer. The upwind duct 4 connects the air supply duct 3 and the conical bucket 5, delivers the air source to the conical bucket 5, and purges from top to bottom to clear the internal blockage.

[0021] The downwind duct 6 is connected to the star-shaped format valve 7, and the star-shaped format valve 7 is arranged at the bottom of the conical bucket 5 to transport the high-efficiency desulfurizer inside the conical bucket 5 to the outside. The downwind duct 6 connects the air supply duct 3 and the star-shaped format valve 7, and transports air to the bottom of the star-shaped format valve 7 to blow from bottom to top to clear the internal blockage.

[0022] The following is a detailed description of the design of the above key components:

[0023] The air supply duct 3 is connected to the upwind duct 4 and the downwind duct 6 through a tee. The air supply duct 3 is divided into two branches through a tee interface, one leading to the upwind duct 4 and the other leading to the downwind duct 6. The air in the air supply duct 3 can be evenly distributed to the upwind duct 4 and the downwind duct 6 through the tee interface, and the duct connection is simple and compact, reducing the occupied space.

[0024] The upwind duct 4 is provided with an upwind valve 8. The upwind valve 8 is used to control the air flow rate, and the air flow rate of the upwind duct 4 entering the conical bucket 5 can be adjusted as needed to ensure the purging effect, so that the operator can easily adjust it. The air flow rate entering the conical bucket 5 is accurately controlled to prevent too much or too little air from affecting the flow of the desulfurizer and optimize the purging effect.

[0025] The downwind duct 6 is provided with a downwind valve 9. The downwind valve 9 can adjust the air flow rate of the downwind duct 6 entering the star-shaped format valve 7 as needed to ensure the purging effect, so that the operator can easily adjust it. The air flow rate entering the star-shaped format valve 7 is accurately controlled to prevent the desulfurizer from being blocked at the star-shaped format valve 7, ensuring that the star-shaped format valve 7 is always unobstructed.

[0026] The air inlet pipe 1 is connected to a compressed air source, which provides a stable and sufficient air pressure and a purge air source. The compressed air enters through the air inlet pipe 1 to achieve effective purge.

[0027] A dry desulfurization return warehouse purge device eliminates blockage by compressed air purge, has a simple structure, is easy to maintain, has a simple method, and improves work efficiency;

[0028] The dry desulfurization return warehouse purge function solves the problem that the desulfurizer in the prior art is very easy to be blocked above the star-shaped format valve 7.

[0029] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. Dry desulfurization return warehouse purge device, characterized in that: It includes an air inlet pipe, on which an induced draft fan is arranged, an air supply duct is led out of the induced draft fan, the rear end of the air supply duct is connected with an upwind duct and a downwind duct, the upwind duct is connected to a conical bucket, and the downwind duct is connected to a star-shaped format valve.

2. The dry desulfurization return warehouse purge device according to claim 1 is characterized in that: The air supply duct is connected to the upwind duct and the downwind duct via a tee.

3. The dry desulfurization return warehouse purge device according to claim 1 is characterized in that: An upwind valve is arranged on the upwind duct.

4. The dry desulfurization return warehouse purge device according to claim 1, characterized in that: The downwind duct is provided with a downwind valve.

5. The dry desulfurization return warehouse purge device according to claim 1, characterized in that: The air inlet pipe is connected to a compressed air source.

Images