Calcium-based ultrafine powder desulfurization equipment

Abstract

The utility model provides calcium-based ultrafine powder desulfurization equipment, in particular to the technical field of desulfurization, which comprises a bottom plate, a drying mechanism and a cleaning mechanism, a placing barrel is fixedly connected above the bottom plate, according to the calcium-based ultrafine powder desulfurization equipment, calcium-based ultrafine powder enters a connecting pipe through a control valve and is blown by a Roots blower, and the calcium-based ultrafine powder is dried by the drying mechanism and the cleaning mechanism. The calcium-based ultrafine powder is introduced into the boiler, the calcium-based ultrafine powder reacts with sulfides in flue gas, desulfurization operation is conducted, a connector is arranged on the outer side of a containing barrel, the calcium-based ultrafine powder in the containing barrel is dried through the arrangement of the connector and a heating pipe, then a motor is started, an auger is driven to stir the calcium-based ultrafine powder, in this way, it can be guaranteed that heating and drying are more thorough, and the efficiency is improved. When calcium-based ultrafine powder is completely discharged, a pull rod can be pulled to drive a first pressing rod to compress a spring, at the moment, a second pressing rod is in sliding connection with a containing barrel, a scraping plate faces downwards, powder on the inner wall of the containing barrel is scraped, and through guiding of an inclined face, the powder can be better scraped.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization, in particular to a calcium-based ultrafine powder desulfurization device. Background Art

[0002] The in-furnace calcium-based ultrafine powder spraying flue gas desulfurization system is mainly suitable for boiler desulfurization in coal-fired power plants. The main tasks of this system are to complete material transportation, metering, powder feeding amount adjustment, and in-furnace spraying, so that the limestone powder is calcined and decomposed in the furnace, and the generated calcium oxide is used to react with the sulfur dioxide in the flue gas in the furnace to achieve in-furnace desulfurization. The in-furnace calcium-based desulfurization limestone powder injection and conveying system uses a Roots blower as the power source, adopts the powder conveyor air source jet principle, and uses the induced effect of high-speed airflow to transport powdered materials. During the use of traditional calcium-based ultrafine powder desulfurization equipment, the calcium-based ultrafine powder is easy to react with moisture in the air, causing the calcium-based ultrafine powder to agglomerate, making it difficult to spray out some of the calcium-based ultrafine powder. Utility Model Content

[0003] The purpose of the utility model is to provide a calcium-based ultrafine powder desulfurization equipment to solve the problem in the above-mentioned background technology that during the use of the traditional calcium-based ultrafine powder desulfurization equipment, the calcium-based ultrafine powder is easy to react with moisture in the air, causing the calcium-based ultrafine powder to agglomerate and making some of the calcium-based ultrafine powder difficult to spray out.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a calcium-based ultrafine powder desulfurization equipment, comprising a base plate, a drying mechanism and a cleaning mechanism, a placement barrel is fixedly connected to the top of the base plate, a drying mechanism is arranged on the inner side of the placement barrel, a cleaning mechanism is arranged above the placement barrel, a control valve is connected to the bottom of the placement barrel, one end of the control valve is connected to a connecting pipe, and one end of the connecting pipe is connected to a Roots blower.

[0005] Preferably, the control valve is connected to the placement barrel, and the Roots blower is fixedly connected to the bottom plate.

[0006] Preferably, the drying mechanism includes a motor, an auger, a fixing groove, a heating tube and a joint, the motor is fixedly connected to the top of the placement barrel, one end of the output shaft of the motor is fixedly connected to the auger, a fixing groove is opened on the inner side of the placement barrel, a heating tube is arranged on the inner side of the fixing groove, and a joint is arranged on the outer side of the placement barrel.

[0007] Preferably, the joint is electrically connected to the heating tube.

[0008] Preferably, the cleaning mechanism includes a first pressure rod, a spring, a pull rod, a connecting frame, a second pressure rod, a scraper and an inclined surface. The first pressure rod is slidably connected to the top of the placement bucket, a spring is sleeved on the outer side of the first pressure rod, one end of the first pressure rod is fixedly connected to the pull rod, one end of the pull rod is fixedly connected to the connecting frame, one end of the connecting frame is fixedly connected to the second pressure rod, the other end of the first pressure rod is fixedly connected to the scraper, and an inclined surface is provided on one side of the scraper.

[0009] Preferably, the scraper is fixedly connected to the second pressure rod, the second pressure rod is slidably connected to the placement bucket, and the outer wall of the scraper is in contact with the inner wall of the placement bucket.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: in the calcium-based ultrafine powder desulfurization equipment, the calcium-based ultrafine powder enters the connecting pipe through the control valve and is blown by the Roots blower, thereby passing the calcium-based ultrafine powder into the interior of the boiler, so that it reacts with the sulfide in the flue gas to perform the desulfurization operation. A joint is provided on the outside of the placement barrel. Through the setting of the joint and the heating pipe, the calcium-based ultrafine powder inside the placement barrel is dried, and then the motor is started to drive the auger to stir it, so as to ensure more thorough heating and drying. When the calcium-based ultrafine powder is completely discharged, the pull rod can be pulled to drive the first pressure rod to compress the spring. At this time, the second pressure rod is slidably connected to the placement barrel, and the scraper is downward to scrape off the powder on the inner wall of the placement barrel. The powder can be better scraped off through the inclined surface guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the appearance of the utility model;

[0012] Figure 2 This is a schematic diagram of the drying mechanism structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the connection pipe and the Roots blower cooperating with each other in the utility model.

[0015] In the figure: 1. bottom plate; 2. placement barrel; 3. drying mechanism; 301. motor; 302. auger; 303. fixing groove; 304. heating tube; 305. joint; 4. cleaning mechanism; 401. first pressure rod; 402. spring; 403. pull rod; 404. connecting frame; 405. second pressure rod; 406. scraper; 407. inclined surface; 5. control valve; 6. connecting pipe; 7. Roots blower. DETAILED DESCRIPTION

[0016] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0017] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] See also Figure 1-4 The utility model discloses a calcium-based ultrafine powder desulfurization device, comprising a bottom plate 1, a drying mechanism 3 and a cleaning mechanism 4. A placing barrel 2 is fixedly connected to the top of the bottom plate 1, a drying mechanism 3 is arranged on the inner side of the placing barrel 2, a cleaning mechanism 4 is arranged on the top of the placing barrel 2, a control valve 5 is connected to the bottom of the placing barrel 2, one end of the control valve 5 is connected to a connecting pipe 6, one end of the connecting pipe 6 is connected to a Roots blower 7, the calcium-based ultrafine powder enters the connecting pipe 6 through the control valve 5, and is blown by the Roots blower 7, so that the calcium-based ultrafine powder is passed into the interior of the boiler, so that it reacts with the sulfide in the flue gas to perform a desulfurization operation.

[0022] In order to facilitate the control of transportation, the control valve 5 is connected to the placement barrel 2, and the Roots blower 7 is fixedly connected to the bottom plate 1.

[0023] In order to dry the calcium-based ultrafine powder, the drying mechanism 3 includes a motor 301, an auger 302, a fixed groove 303, a heating tube 304 and a joint 305. The motor 301 is fixedly connected to the top of the placement barrel 2, and the auger 302 is fixedly connected to one end of the output shaft of the motor 301. A fixed groove 303 is provided on the inner side of the placement barrel 2, and a heating tube 304 is provided on the inner side of the fixed groove 303. A joint 305 is provided on the outer side of the placement barrel 2. Through the setting of the joint 305 and the heating tube 304, the calcium-based ultrafine powder inside the placement barrel 2 is dried, and then the motor 301 is started to drive the auger 302 to stir it, so as to ensure that the heating and drying are more thorough.

[0024] In order to dry the calcium-based ultrafine powder, the connector 305 is electrically connected to the heating tube 304 .

[0025] In order to facilitate the discharge of the retained powder, the cleaning mechanism 4 includes a first pressure rod 401, a spring 402, a pull rod 403, a connecting frame 404, a second pressure rod 405, a scraper 406 and an inclined surface 407. The first pressure rod 401 is slidably connected to the top of the placement barrel 2, and the outer side of the first pressure rod 401 is sleeved with a spring 402. One end of the first pressure rod 401 is fixedly connected to the pull rod 403, one end of the pull rod 403 is fixedly connected to the connecting frame 404, and one end of the connecting frame 404 is fixedly connected to the first pressure rod 401. A second pressure rod 405 is fixedly connected, and a scraper 406 is fixedly connected to the other end of the first pressure rod 401. An inclined surface 407 is provided on one side of the scraper 406. When in use, when the calcium-based ultrafine powder is completely discharged, the pull rod 403 can be pulled to drive the first pressure rod 401 to compress the spring 402. At this time, the second pressure rod 405 is slidably connected to the placement barrel 2, and the scraper 406 moves downward to scrape off the powder on the inner wall of the placement barrel 2. The powder can be better scraped off by guiding it through the inclined surface 407.

[0026] In order to facilitate the discharge of the retained powder, the scraper 406 is fixedly connected to the second pressure rod 405, the second pressure rod 405 is slidably connected to the placement barrel 2, and the outer wall of the scraper 406 fits with the inner wall of the placement barrel 2.

[0027] Working principle: the calcium-based ultrafine powder enters the connecting pipe 6 through the control valve 5 and is blown through the Roots blower 7, so that the calcium-based ultrafine powder is passed into the interior of the boiler, so that it reacts with the sulfide in the flue gas to perform a desulfurization operation. A joint 305 is provided on the outside of the placement barrel 2. The calcium-based ultrafine powder inside the placement barrel 2 is dried through the setting of the joint 305 and the heating tube 304, and then the motor 301 is started to drive the auger 302 to stir it, so as to ensure that the heating and drying are more thorough. When the calcium-based ultrafine powder is completely discharged, the pull rod 403 can be pulled to drive the first pressure rod 401 to compress the spring 402. At this time, the second pressure rod 405 is slidably connected to the placement barrel 2, and the scraper 406 is downward to scrape off the powder on the inner wall of the placement barrel 2. The powder can be better scraped off by guiding through the inclined surface 407.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the implementation rules without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calcium-based ultrafine powder desulfurization device, comprising a bottom plate (1), a drying mechanism (3) and a cleaning mechanism (4), characterized in that: A placement barrel (2) is fixedly connected to the top of the bottom plate (1), a drying mechanism (3) is arranged inside the placement barrel (2), a cleaning mechanism (4) is arranged above the placement barrel (2), a control valve (5) is connected to the bottom of the placement barrel (2), one end of the control valve (5) is connected to a connecting pipe (6), one end of the connecting pipe (6) is connected to a Roots blower (7), the control valve (5) is connected to the placement barrel (2), the Roots blower (7) is fixedly connected to the bottom plate (1), and the drying mechanism (3) comprises a motor ( 301), an auger (302), a fixing groove (303), a heating tube (304) and a joint (305); a motor (301) is fixedly connected to the top of the placement bucket (2); one end of the output shaft of the motor (301) is fixedly connected to the auger (302); a fixing groove (303) is provided on the inner side of the placement bucket (2); a heating tube (304) is provided on the inner side of the fixing groove (303); a joint (305) is provided on the outer side of the placement bucket (2); and the joint (305) is electrically connected to the heating tube (304).

2. The calcium-based ultrafine powder desulfurization equipment according to claim 1 is characterized in that: The cleaning mechanism (4) comprises a first pressure rod (401), a spring (402), a pull rod (403), a connecting frame (404), a second pressure rod (405), a scraper (406) and an inclined surface (407); the first pressure rod (401) is slidably connected to the top of the placement barrel (2); the outer side of the first pressure rod (401) is sleeved with a spring (402); one end of the first pressure rod (401) is fixedly connected to the pull rod (403); one end of the pull rod (403) is fixedly connected to the connecting frame (404); one end of the connecting frame (404) is fixedly connected to the second pressure rod (405); the other end of the first pressure rod (401) is fixedly connected to the scraper (406); one side of the scraper (406) is provided with an inclined surface (407).

3. A calcium-based ultrafine powder desulfurization equipment according to claim 2, characterized in that: The scraper (406) is fixedly connected to the second pressure rod (405), the second pressure rod (405) is slidably connected to the placement bucket (2), and the outer wall of the scraper (406) is in contact with the inner wall of the placement bucket (2).

Images