Denitration powder conveying device

Abstract

The utility model discloses a kind of denitration powder material conveying devices, including the feed assembly for storing to be conveyed denitration powder;Receiving the conveying assembly of powder after drying treatment;Connecting feed assembly, conveying assembly into hot gas to feed assembly, complete powder drying, pressurizing component for conveying power is provided to conveying assembly;The beneficial effects of the utility model are that: by pressurizing component into hot gas to feed assembly, denitration powder can be carried out online drying treatment, effectively avoid powder and bridge by dampening and caking, significantly improve powder fluidity, solve the problem of traditional device conveying from root, ensure the continuity of material conveying process;Pressurizing component integration design, simultaneously realize drying heat supply to feed assembly and power supply to conveying assembly, without separately setting drying equipment and conveying power device, simplify overall structure, reduce equipment occupied space, and avoid drying and conveying link power waste, improve the comprehensive efficiency of powder processing.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection technology, specifically relating to a denitrification powder conveying device. Background Technology

[0002] With the increasing efforts of the state to control air pollution, nitrogen oxides (NOx) from industries such as thermal power plants, waste incineration plants, and cement plants have become a major concern. x Emission standards are becoming increasingly stringent; according to GB 13223-2011 "Emission Standard of Air Pollutants for Thermal Power Plants" and the "Action Plan for Upgrading and Retrofitting Coal-fired Power Plants for Energy Conservation and Emission Reduction", NOx emissions from coal-fired units must meet certain requirements. x Emissions must be controlled below 50 mg / m³, and ultra-low emissions have become a mandatory indicator for industry development; in achieving NO x Among the many technical approaches to ultra-low emissions, selective catalytic reduction (SCR), selective non-catalytic reduction (SNCR), and combined denitrification technologies all rely on the stable transport of denitrification powders (such as ammonia, urea, ammonium bicarbonate, etc.). The performance of the material transport system directly affects the denitrification efficiency, operating costs, and environmental compliance rate.

[0003] Currently, denitrification powder conveying devices face numerous problems in practical applications, severely hindering the stable operation of denitrification systems:

[0004] Poor conveying and bridging: Denitrification powders are mostly hygroscopic and are prone to caking due to moisture during storage and transportation, especially at small hoppers and conveying pipe inlets where "bridging" is easily formed;

[0005] During the conveying process, some denitrification powders are prone to adhering to the inner wall of the conveying pipe due to static electricity or humidity. Long-term accumulation can lead to pipe blockage, increase equipment maintenance costs, and affect the stability of the conveying volume. When the powder is damp or has a high moisture content, its fluidity decreases significantly. Traditional conveying devices cannot perform online drying of the powder, which further exacerbates the problem of poor conveying. Utility Model Content

[0006] The purpose of this utility model is to provide a denitrification powder conveying device that overcomes the defects of existing denitrification powder conveying devices, such as poor conveying, bridging, adhesion to pipe walls, and lack of drying function, and provides a high-efficiency, environmentally friendly, and stable denitrification powder conveying device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a denitrification powder conveying device, comprising a feeding component for storing denitrification powder to be conveyed; a conveying component for receiving dried powder; and a pressurizing component that connects the feeding component and the conveying component, introduces hot air into the feeding component to complete the powder drying, and pressurizes the conveying component to provide conveying power.

[0008] Preferably, it also includes a support frame, on which the feeding assembly, conveying assembly, and pressurizing assembly are all mounted.

[0009] Preferably, the feeding assembly includes a feeding cylinder and a feeding pipe communicating with the inside of the feeding cylinder.

[0010] Preferably, the feeding assembly further includes an extension cylinder, and the extension cylinder is detachably connected to the feeding cylinder.

[0011] Preferably, it also includes an observation port opened on the feed cylinder, a reinforcing frame installed inside the observation port, and high-temperature resistant quartz glass installed inside the observation port and detachably connected to the reinforcing frame.

[0012] Preferably, it also includes a purge tube installed inside the observation port, a connecting tube disposed on the purge tube, and a plurality of purge nozzles disposed on the purge tube and communicating with the inside of the purge tube, wherein the purge nozzles are directed toward the high-temperature resistant quartz glass.

[0013] Preferably, the assembly also includes a connecting column disposed on the purge pipe and a fixing plate disposed on the top of the connecting column, and the conveying assembly includes a discharge cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By introducing hot air into the feeding assembly through the pressurization component, the denitrification powder can be dried online, effectively preventing the powder from clumping and bridging due to moisture, significantly improving the powder's flowability, fundamentally solving the problem of poor conveying in traditional equipment, and ensuring the continuity of the material conveying process.

[0016] The integrated design of the pressurization components simultaneously achieves drying and heating of the feeding components and power supply to the conveying components. This eliminates the need for separate drying equipment and conveying power devices, simplifies the overall structure, reduces equipment space occupation, avoids power waste in the drying and conveying processes, and improves the overall efficiency of powder processing.

[0017] The observation port on the feed cylinder, combined with high-temperature resistant quartz glass, allows operators to observe the powder status in real time, promptly detect and handle abnormalities; the blow pipe and blow nozzle can remove powder dust from the glass surface without stopping the machine, ensuring clear observation and avoiding interruption of equipment operation due to cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a partial structural diagram of the feeding assembly of this utility model;

[0020] Figure 3 For the present utility model Figure 2A schematic diagram of the structure after the high-temperature resistant quartz glass is removed;

[0021] Figure 4 This is a schematic diagram of the purge tube structure of this utility model;

[0022] In the diagram: 1. Feeding assembly; 11. Feeding pipe; 12. Feeding cylinder; 120. Observation port; 13. Extension cylinder; 2. Conveying assembly; 21. Discharge cylinder; 3. Pressurizing assembly; 4. High-temperature resistant quartz glass; 5. Reinforcing frame; 6. Purge pipe; 61. Connecting column; 610. Fixing plate; 62. Connecting pipe; 7. Purge nozzle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figures 1-4 This is the first embodiment of the present invention, which provides a denitrification powder conveying device, including a feeding component 1 for storing denitrification powder to be conveyed, which can be supplied with hot air through a pressurizing component 3 to dry the powder, preventing the powder from clumping or bridging due to moisture and ensuring the flowability of the powder; a conveying component 2 for receiving the dried powder, which is pressurized by the pressurizing component 3 to make the powder spray out at a certain speed under high pressure, so as to achieve stable conveying of the powder; and a pressurizing component 3 for connecting the feeding component 1 and the conveying component 2, which supplies hot air to the feeding component 1 to complete the powder drying and pressurizes the conveying component 2 to provide conveying power. Through the integrated design of the pressurizing component 3, the drying and conveying power are supplied in a coordinated manner, which simplifies the equipment structure, improves the powder processing efficiency, and avoids the waste of power in the drying and conveying links.

[0026] In this embodiment, preferably, a support frame is also included. The feeding component 1, the conveying component 2, and the pressurizing component 3 are all installed on the support frame. The support frame enables the integrated installation of each component, ensuring the relative position stability of the feeding component 1, the conveying component 2, and the pressurizing component 3, reducing vibration interference during equipment operation, improving the overall structural stability, and facilitating the overall handling and installation of the device.

[0027] In this embodiment, preferably, the feeding assembly 1 includes a feeding cylinder 12 and a feeding pipe 11 communicating with the inside of the feeding cylinder 12. The feeding cylinder 12 provides storage space for the denitrification powder, and the feeding pipe 11 realizes the directional introduction of the powder. The two work together to form a complete feeding channel. The structure is simple and facilitates the centralized temporary storage and subsequent processing of the powder, reducing the scattering of the powder in the feeding process. The conveying assembly 2 includes a discharge cylinder 21. The discharge cylinder 21 is the core component of the conveying assembly 2 and provides an output channel for the dried powder, ensuring that the powder is directionally conveyed to the next process.

[0028] In this embodiment, preferably, the feeding assembly 1 further includes an extension cylinder 13, and the extension cylinder 13 is detachably connected to the feeding cylinder 12. The extension cylinder 13 can be detached and adjusted to adjust the overall storage capacity of the feeding assembly 1, flexibly adapting to the powder storage needs under different working conditions. The detachable design facilitates the individual cleaning and maintenance of the extension cylinder 13, and extension cylinders 13 of different materials can be replaced according to the characteristics of the powder.

[0029] In this embodiment, preferably, it also includes an observation port 120 opened on the feed cylinder 12, a reinforcing frame 5 installed inside the observation port 120, and a high-temperature resistant quartz glass 4 installed inside the observation port 120 and detachably connected to the reinforcing frame 5. The observation port 120 facilitates real-time observation of the powder state (such as material level, whether it is clumped, etc.) inside the feed cylinder 12. The reinforcing frame 5 enhances the structural strength around the observation port 120, preventing the feed cylinder 12 from reducing its load-bearing capacity due to the opening of the observation port 120. The high-temperature resistant quartz glass 4 has both transparent observation and high-temperature resistance characteristics, is suitable for the dry environment inside the feed cylinder 12, and the detachable design facilitates the cleaning and replacement of the glass.

[0030] Example 2

[0031] Please see Figures 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment, but differs in that:

[0032] It also includes a purge pipe 6 installed inside the observation port 120, a connecting pipe 62 disposed on the purge pipe 6, and multiple purge nozzles 7 disposed on the purge pipe 6 and communicating with the inside of the purge pipe 6, with the purge nozzles 7 facing the high-temperature resistant quartz glass 4. After the purge pipe 6 is connected to the air source through the connecting pipe 62, it can spray airflow onto the surface of the high-temperature resistant quartz glass 4 through the multiple purge nozzles 7 to remove the powder and dust adhering to the glass surface in a timely manner, ensuring the clarity of observation through the observation port 120, eliminating the need for machine shutdown for cleaning, and improving the continuity of equipment operation. In this embodiment, preferably, it also includes a connecting post 61 disposed on the purge pipe 6 and a fixing plate 610 disposed on the top of the connecting post 61. The connecting post 61 and the fixing plate 610 cooperate to achieve stable fixation of the purge pipe 6 within the observation port 120, preventing the purge pipe 6 from shifting due to airflow impact or equipment vibration, and ensuring the accurate purge direction of the purge nozzles 7.

[0033] The working principle and usage process of this utility model are as follows: The denitrification powder to be conveyed is introduced into the feed cylinder 12 through the feed pipe 11 of the feed assembly 1, and the powder is temporarily stored in the feed cylinder 12; the operator can observe the powder level and state in the feed cylinder 12 in real time through the high temperature resistant quartz glass 4 of the observation port 120 to determine whether there is agglomeration, bridging or other issues.

[0034] Activate the pressurization component 3 to introduce hot air into the feed cylinder 12 of the feeding component 1; the hot air comes into full contact with the denitrification powder in the feed cylinder 12 to dry the powder, preventing it from clumping or bridging due to moisture and ensuring its flowability; during this process, if dust adheres to the surface of the high-temperature resistant quartz glass 4 and affects observation, gas can be introduced into the purge pipe 6 through the connecting pipe 62, and the gas is sprayed onto the surface of the high-temperature resistant quartz glass 4 through multiple purge nozzles 7 to remove dust in time and maintain clear observation.

[0035] The dried powder enters the conveying assembly 2; the pressurizing assembly 3 simultaneously pressurizes the conveying assembly 2, so that the powder enters the discharge cylinder 21 under high pressure and is ejected from the discharge cylinder 21 at a certain initial velocity, thereby achieving stable conveying of the powder to the next process.

[0036] Although embodiments of the present invention have been shown and described in detail above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A denitrification powder conveying device, characterized in that: It includes a feeding assembly (1) for storing denitrification powder to be conveyed; a conveying assembly (2) for receiving dried powder; and a pressurizing assembly (3) for connecting the feeding assembly (1) and the conveying assembly (2) to introduce hot air into the feeding assembly (1) to complete the powder drying and pressurize the conveying assembly (2) to provide conveying power.

2. The denitrification powder conveying device according to claim 1, characterized in that: It also includes a support frame, on which the feeding assembly (1), conveying assembly (2), and pressurizing assembly (3) are all mounted.

3. The denitrification powder conveying device according to claim 1, characterized in that: The feeding assembly (1) includes a feeding cylinder (12) and a feeding pipe (11) communicating with the inside of the feeding cylinder (12).

4. The denitrification powder conveying device according to claim 3, characterized in that: The feeding assembly (1) also includes an extension cylinder (13), and the extension cylinder (13) is detachably connected to the feeding cylinder (12).

5. A denitrification powder conveying device according to claim 3, characterized in that: It also includes an observation port (120) opened on the feed cylinder (12), a reinforcing frame (5) installed inside the observation port (120), and a high-temperature resistant quartz glass (4) installed inside the observation port (120) and detachably connected to the reinforcing frame (5).

6. The denitrification powder conveying device according to claim 5, characterized in that: It also includes a purge tube (6) installed inside the observation port (120), a connecting tube (62) set on the purge tube (6), and a plurality of purge nozzles (7) set on the purge tube (6) and connected to the inside of the purge tube (6), with the purge nozzles (7) facing the high-temperature resistant quartz glass (4).

7. A denitrification powder conveying device according to claim 6, characterized in that: It also includes a connecting post (61) disposed on the purge pipe (6), a fixing plate (610) disposed on the top of the connecting post (61), and the conveying assembly (2) includes a discharge cylinder (21).

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