Desulfurizing agent spraying device for dry desulphurization device

Abstract

The utility model relates to the technical field of flue gas desulfurization, and discloses a desulfurizing agent spraying device for a dry desulfurization device, which comprises a material barrel, a cover is clamped and mounted on the material barrel, and a spraying component is arranged on the material barrel. According to the desulfurizing agent spraying device for the dry desulfurization device, in order to achieve fine spraying and stable supply of a desulfurizing agent, the spraying assembly is arranged and matched with the first motor to drive the spraying turbine to form powerful cyclone in the spraying pipe, and the desulfurizing agent in the material barrel is sucked into the spraying pipe through the opening; the spraying turbine and the spraying pipe are matched to form a venturi effect, negative pressure is generated at the inlet of the spraying pipe, the desulfurizing agent in the material barrel is continuously sucked, the continuity of the spraying process is ensured, a bottom motor drives a spiral plate to rotate, the desulfurizing agent is pushed upwards to the opening, and the desulfurizing agent is sprayed out from the outlet of the spraying pipe. And feeding interruption caused by gravity accumulation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization technology, specifically to a desulfurizing agent injection device for a dry desulfurization unit. Background Technology

[0002] In industrial sectors such as coal-fired power generation, steel smelting, and cement production, sulfur dioxide produced during combustion is one of the main air pollutants. Dry desulfurization technology is widely used due to its advantages such as no wastewater generation and simple process flow.

[0003] Dry desulfurization units typically consist of a storage silo, a feeding system, a conveying pipeline, an atomizing injector, and a control system. The storage silo stores the desulfurizing agent powder. The feeding system uses rotary feed valves, screw conveyors, and other equipment to precisely control the supply of desulfurizing agent. The conveying pipeline uses compressed air as a carrier to transport the desulfurizing agent to the injection point. The atomizing injector atomizes the desulfurizing agent into fine particles to increase the contact area with the flue gas. The control system monitors parameters such as flue gas flow rate and SO2 concentration in real time through sensors and automatically adjusts the amount of desulfurizing agent injected.

[0004] However, in actual use, most of the above-mentioned equipment relies on the gravity of the desulfurizing agent for feeding, which is prone to interruption of the supply due to particle agglomeration or accumulation at the bottom of the barrel. In particular, it has poor adaptability to high humidity or fine powder desulfurizing agents. Furthermore, when the desulfurizing agent is left to stand in the material barrel, particle stratification is likely to occur, resulting in uneven particle size distribution when directly sprayed. In view of this, we propose a desulfurizing agent spraying device for dry desulfurization equipment. Utility Model Content

[0005] The purpose of this invention is to provide a desulfurizing agent injection device for a dry desulfurization unit, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A desulfurizing agent injection device for a dry desulfurization unit includes a material tank, a lid snapped onto the material tank, a feed pipe fixedly installed on the material tank, and an injection assembly disposed on the material tank. The injection assembly includes:

[0008] The mounting plate has an opening, a mounting bracket is fixedly mounted on the mounting plate, a spray pipe is fixedly mounted on the mounting bracket, and a No. 1 motor is fixedly mounted at the bottom of the mounting bracket;

[0009] A round rod is fixedly installed at the output end of the No. 1 motor, and a jet turbine is fixedly installed on the round rod. A support ring is fixedly installed at the bottom of the material barrel.

[0010] A bottom motor is fixedly installed at the bottom of the material bin. A vertical rod is fixedly installed at the output end of the bottom motor, and a spiral plate is fixedly installed at the output end of the vertical rod.

[0011] In a further embodiment, multiple sets of the mounting plate, opening, mounting bracket, injection pipe, No. 1 motor, round rod, and injection turbine are provided.

[0012] In a further embodiment, the jet turbine is disposed inside the jet pipe, and the jet pipe is connected to the inside of the material tank through an opening.

[0013] In a further embodiment, the vertical rod and spiral plate are located inside the material bin, and the bottom motor is located inside the support ring.

[0014] In a further embodiment, the cover is provided with a stirring assembly, the stirring assembly including a top motor, the top motor is fixedly mounted on the cover, a protective box is fixedly mounted on the cover, a filter plate is fixedly mounted on the protective box, an installation rod is fixedly mounted on the output end of the top motor, and a stirring paddle is fixedly mounted on the installation rod.

[0015] In a further embodiment, multiple sets of filter plates and stirring paddles are provided, and the top motor is located inside the protective box.

[0016] In a further embodiment, the mounting rod and the stirring paddle are disposed inside the material tank, and the mounting rod and the stirring paddle are disposed above the spiral plate.

[0017] Compared with the prior art, this utility model provides a desulfurizing agent injection device for a dry desulfurization unit, which has the following beneficial effects:

[0018] 1. This dry desulfurization unit uses a desulfurizing agent injection device. To achieve precise injection and stable supply of the desulfurizing agent, an injection assembly is installed. This assembly, in conjunction with a No. 1 motor, drives an injection turbine to form a powerful cyclone inside the injection pipe. This cyclone draws the desulfurizing agent from the material tank into the injection pipe through the opening and ejects it from the outlet of the injection pipe through a high-speed airflow. The interaction between the injection turbine and the injection pipe creates a Venturi effect, generating negative pressure at the inlet of the injection pipe, continuously drawing in the desulfurizing agent from the material tank and ensuring the continuity of the injection process. A bottom motor drives a spiral plate on the vertical rod to rotate, pushing the desulfurizing agent at the bottom of the material tank upwards to the opening, preventing supply interruptions due to gravity accumulation. Multiple sets of injection pipes are evenly distributed on the mounting plate, and the injection angle can be adjusted according to the desulfurization reaction requirements to ensure full contact between the desulfurizing agent and the flue gas. This achieves precise injection and stable supply of the desulfurizing agent, making it suitable for dry desulfurization scenarios of different scales, and performing particularly well in the treatment of high-sulfur flue gas.

[0019] 2. This dry desulfurization unit uses a desulfurizing agent injection device. To improve the dispersibility of the desulfurizing agent, a stirring assembly is installed. This assembly, in conjunction with the top motor driving the mounting rod to rotate, drives multiple sets of stirring blades to form a three-dimensional stirring flow field within the material tank. The propeller blade design causes the desulfurizing agent to circulate and tumble, preventing particle stratification caused by static placement. Filter plates are set around the top motor, and the protective box and filter plates prevent the desulfurizing agent from contacting the top motor, thus intercepting the desulfurizing agent and preventing damage to the top motor from moisture. At the same time, the stirring blades are located above the spiral plate, performing secondary stirring while the spiral plate pushes the material, further breaking up agglomerated particles and improving the dispersibility of the desulfurizing agent. When the desulfurizing agent content in the material tank is low, the tumbling of the stirring blades can assist the spiral plate in concentrating the material at the bottom to the central area, improving the feeding efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of part of the structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of part of the structure of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram of region A in the middle;

[0024] Figure 5 This is a schematic diagram of the spray assembly of this utility model.

[0025] Explanation of icon numbers:

[0026] 1. Material bucket; 2. Lid; 3. Feed pipe;

[0027] 4. Injection assembly; 41. Mounting plate; 42. Opening; 43. Mounting bracket; 44. Injection pipe; 45. Motor No. 1; 46. Round rod; 47. Injection turbine; 48. Support ring; 49. Bottom motor; 410. Vertical rod; 411. Spiral plate;

[0028] 5. Stirring assembly; 51. Top motor; 52. Protective box; 53. Filter plate; 54. Mounting rod; 55. Stirring paddle. Detailed Implementation

[0029] 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.

[0030] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0031] Please see Figures 1-5 This utility model provides a technical solution:

[0032] A desulfurizing agent injection device for a dry desulfurization unit includes a material tank 1, a cover 2 snapped onto the material tank 1, and a feed pipe 3 fixedly installed on the material tank 1.

[0033] In one embodiment of this utility model, a spraying assembly 4 is provided on the material bin 1. The spraying assembly 4 includes a mounting plate 41 with an opening 42. A mounting bracket 43 is fixedly mounted on the mounting plate 41, and a spraying pipe 44 is fixedly mounted on the mounting bracket 43. A first motor 45 is fixedly mounted at the bottom of the mounting bracket 43. A round rod 46 is fixedly mounted at the output end of the first motor 45, and a spray turbine 47 is fixedly mounted on the round rod 46. A support ring 48 is fixedly mounted at the bottom of the material bin 1. The bottom motor 49 has a vertical rod 410 fixedly installed at its output end, and a spiral plate 411 fixedly installed at its output end. Multiple sets of mounting plate 41, opening 42, mounting bracket 43, spray pipe 44, first motor 45, round rod 46, and spray turbine 47 are provided. The spray turbine 47 is located inside the spray pipe 44. The spray pipe 44 is connected to the inside of the material barrel 1 through the opening 42. The vertical rod 410 and spiral plate 411 are located inside the material barrel 1. The bottom motor 49 is located inside the support ring 48.

[0034] In this embodiment, during operation, the material enters the material tank 1 through the feed pipe 3. Simultaneously, multiple sets of No. 1 motors 45 are started synchronously, driving the round rod 46 to rotate at high speed. This drives the injection turbine 47 to rotate at high speed inside the injection pipe 44. The high-speed rotation of the injection turbine 47 forms a strong cyclone inside the injection pipe 44. Based on the Venturi effect, a negative pressure is generated at the inlet of the injection pipe 44. Since the injection pipe 44 is connected to the inside of the material tank 1 through the opening 42, this negative pressure draws the desulfurizer in the material tank 1 into the injection pipe 44, and it is ejected from the outlet of the injection pipe 44 with the help of the high-speed airflow. Multiple sets of injection pipes 44, evenly distributed on the mounting plate 41, ensure that the desulfurizer is in full contact with the flue gas, achieving fine injection and meeting the needs of dry desulfurization scenarios of different scales. It has significant advantages, especially in the treatment of high-sulfur flue gas. At the same time, the bottom motor 49 installed in the support ring 48 at the bottom of the material tank 1 drives the spiral plate 411 on the vertical rod 410 to rotate, pushing the desulfurizer at the bottom of the material tank 1 upward to the opening 42, ensuring a stable supply of desulfurizer during the injection process.

[0035] In one embodiment of this utility model, a stirring assembly 5 is provided on the cover 2. The stirring assembly 5 includes a top motor 51. The top motor 51 is fixedly installed on the cover 2. A protective box 52 is fixedly installed on the cover 2. A filter plate 53 is fixedly installed on the protective box 52. An installation rod 54 is fixedly installed at the output end of the top motor 51. A stirring paddle 55 is fixedly installed on the installation rod 54. Multiple sets of filter plates 53 and stirring paddles 55 are provided. The top motor 51 is located inside the protective box 52. The installation rod 54 and stirring paddle 55 are located inside the material bucket 1. The installation rod 54 and stirring paddle 55 are located above the spiral plate 411.

[0036] In this embodiment, when the device is running, the top motor 51 starts, driving the mounting rod 54 to rotate, thereby causing multiple sets of stirring paddles 55 to form a three-dimensional stirring flow field in the material tank 1. The propeller blade design of the stirring paddles 55 causes the desulfurizing agent to circulate and tumble up and down, effectively avoiding particle stratification. The filter plate 53 can intercept the desulfurizing agent and prevent it from contacting the top motor 51, thus preventing the motor from being damaged by moisture. During the process of the spiral plate 411 pushing the material upward, the stirring paddles 55 located above perform secondary stirring, further breaking up agglomerated particles and improving the dispersibility of the desulfurizing agent. When the amount of desulfurizing agent in the material tank 1 is low, the tumbling of the stirring paddles 55 can also assist the spiral plate 411 in concentrating the bottom material to the central area, improving the feeding efficiency and providing good conditions for the stable operation of the subsequent spraying assembly 4.

[0037] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the No. 1 motor 45, the bottom motor 49, and the top motor 51. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A desulfurizing agent injection device for a dry desulfurization unit, comprising a material tank (1), a cover (2) snapped onto the material tank (1), and a feed pipe (3) fixedly installed on the material tank (1), characterized in that: The material container (1) is provided with a spraying assembly (4), the spraying assembly (4) comprising: Mounting plate (41), the mounting plate (41) has an opening (42), the mounting plate (41) is fixedly mounted with a mounting bracket (43), the mounting bracket (43) is fixedly mounted with a spray pipe (44), and a No. 1 motor (45) is fixedly mounted at the bottom of the mounting bracket (43); A round rod (46) is fixedly installed at the output end of the No. 1 motor (45), and a jet turbine (47) is fixedly installed on the round rod (46). A support ring (48) is fixedly installed at the bottom of the material barrel (1). Bottom motor (49): The bottom motor (49) is fixedly installed at the bottom of the material bucket (1). A vertical rod (410) is fixedly installed at the output end of the bottom motor (49). A spiral plate (411) is fixedly installed at the output end of the vertical rod (410).

2. The desulfurizing agent injection device for a dry desulfurization unit according to claim 1, characterized in that: The mounting plate (41), opening (42), mounting bracket (43), injection pipe (44), No. 1 motor (45), round rod (46) and injection turbine (47) are provided in multiple sets.

3. The desulfurizing agent injection device for a dry desulfurization unit according to claim 1, characterized in that: The jet turbine (47) is located inside the jet pipe (44), which is connected to the inside of the material barrel (1) through the opening (42).

4. The desulfurizing agent injection device for a dry desulfurization unit according to claim 1, characterized in that: The vertical rod (410) and the spiral plate (411) are located inside the material bucket (1), and the bottom motor (49) is located inside the support ring (48).

5. The desulfurizing agent injection device for a dry desulfurization unit according to claim 1, characterized in that: A stirring assembly (5) is provided on the cover (2). The stirring assembly (5) includes a top motor (51). The top motor (51) is fixedly installed on the cover (2). A protective box (52) is fixedly installed on the cover (2). A filter plate (53) is fixedly installed on the protective box (52). An installation rod (54) is fixedly installed at the output end of the top motor (51). A stirring paddle (55) is fixedly installed on the installation rod (54).

6. The desulfurizing agent injection device for a dry desulfurization unit according to claim 5, characterized in that: The filter plate (53) and the stirring paddle (55) are provided in multiple sets, and the top motor (51) is located inside the protective box (52).

7. The desulfurizing agent injection device for a dry desulfurization unit according to claim 5, characterized in that: The mounting rod (54) and the stirring paddle (55) are located inside the material tank (1) and are located above the spiral plate (411).

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