Yellow phosphorus slag coal saving agent adding and metering structure

Abstract

The utility model discloses a metering structure for adding a yellow phosphorus slag coal-saving agent, and relates to the field of adding of coal-saving agents. The conveying device comprises a base and a conveying shell, a linear driving part is arranged on the base, an L-shaped plate is arranged on the linear driving part, an electric telescopic rod is arranged on the side face of the L-shaped plate, a scraping plate is arranged at the output end of the electric telescopic rod, a fixing structure is arranged on the scraping plate, a metering assembly is arranged at the top of the L-shaped plate, and the metering assembly is matched with the fixing structure. And a mounting plate is mounted at the top of the base. According to the utility model, through the arrangement of the linear driving piece, a worker can quickly select a suitable metering assembly according to different working conditions and requirements, through the arrangement of the fixing structure, the metering assembly can be quickly replaced according to different working conditions and requirements, the adaptability and the flexibility are improved, and through the arrangement of the material mixing assembly, the material mixing efficiency is improved. The adding effect of the coal saving agent is effectively improved, and coal close to the bottom can also be added into the coal saving agent.

Description

Technical Field

[0001] This utility model relates to the field of coal-saving agent addition technology, and more specifically, to a metering structure for adding a coal-saving agent to yellow phosphorus slag. Background Technology

[0002] The yellow phosphorus slag coal-saving agent addition metering structure is a device specifically designed for adding yellow phosphorus slag coal-saving agent during industrial combustion. The purpose of this structure is to control the amount of coal-saving agent added to improve combustion efficiency, reduce coal consumption, and reduce environmental pollution.

[0003] Existing metering devices control the amount of coal-saving agent added by controlling the volume of the receiving cylinder. However, when the type of coal and the combustion equipment are different, the required dosage of coal-saving agent is also different. Therefore, it is necessary to replace the metering receiving cylinder to control the amount of coal-saving agent added, which reduces the adaptability and flexibility of the device.

[0004] Therefore, we have made improvements and proposed a metering structure for adding yellow phosphorus slag coal-saving agent. Utility Model Content

[0005] The purpose of this invention is to address the issue that existing metering devices control the amount of coal-saving agent added by controlling the volume of the receiving cylinder. However, when the type of coal and the combustion equipment are different, the required dosage of coal-saving agent also varies, necessitating the replacement of the metering receiving cylinder to control the amount of coal-saving agent added, thus reducing the adaptability and flexibility of the device.

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

[0007] A metering structure for adding a yellow phosphorus slag coal-saving agent is proposed to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] The system includes: a base and a conveying shell. A linear drive is mounted on the base, and an L-shaped plate is mounted on the linear drive. An electric telescopic rod is mounted on the side of the L-shaped plate, and a scraper is mounted at the output end of the electric telescopic rod. A fixing structure is mounted on the scraper. A metering component is mounted on the top of the L-shaped plate, and the metering component cooperates with the fixing structure. A mounting plate is mounted on the top of the base, and a material storage component is mounted on the side of the mounting plate. Two belt rollers are rotatably fitted inside the conveying shell, and a feeding belt is fitted onto the belt rollers. A mixing component is located on the inner wall of the conveying shell above the feeding component. A drive component is mounted on the side of the conveying shell, and the drive component cooperates with the mixing component. A transmission component is provided between the drive component and the belt rollers.

[0010] The linear drive mechanism allows operators to quickly select the appropriate metering components based on different working conditions and needs. The fixed structure enables rapid replacement of metering components according to different working conditions and needs, improving adaptability and flexibility. The mixing component effectively increases the addition effect of coal-saving agent, allowing coal at the bottom to be added to the coal-saving agent.

[0011] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the linear drive component includes a drive groove opened on the top of the base, a first motor is installed on one side of the inner wall of the drive groove, a threaded rod is installed at the output end of the first motor, a drive block is slidably fitted in the drive groove, the drive block is threadedly fitted with the threaded rod, a trapezoidal slide groove is opened on the top of the base, a trapezoidal slider is slidably fitted in the trapezoidal slide groove, the top of the drive block is fixedly connected to an L-shaped plate, and the top of the trapezoidal slider is fixedly connected to the L-shaped plate.

[0012] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the fixing structure includes multiple slots opened on the side of the scraper, and a square groove is opened at the top of the inner cavity of each of the multiple slots. A locking block is slidably fitted in the square groove, and a spring is installed between the locking block and the square groove. A pull rod is installed at the top of the locking block, and the pull rod is movably connected to the scraper. A pull plate is installed at the end of the pull rod located outside the scraper, and the locking block cooperates with the metering component.

[0013] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the metering component includes multiple metering rings, with fixing rings installed on the sides of the multiple metering rings, and inserts installed on the sides of the fixing rings. The inserts cooperate with slots, and a slot is opened on the top of the inserts, which cooperates with the slots.

[0014] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the storage assembly includes an installation ring installed on the side of the installation plate, a storage tank installed on the inner side of the installation ring, a feed pipe connected to the storage tank installed on the top of the storage tank, a pipe cap threaded onto the feed pipe, and a discharge pipe connected to the storage tank installed at the bottom of the storage tank, with a discharge valve installed on the discharge pipe.

[0015] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the driving component includes a motor installed on the side of the conveying shell, the output end of the motor is equipped with a main synchronous pulley and a drive gear, the main synchronous pulley cooperates with the mixing component, and the drive gear cooperates with the transmission component.

[0016] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the mixing assembly includes multiple rotating rollers rotatably fitted inside the conveying shell. Each of the multiple rotating rollers is equipped with an mounting ring. The side of the mounting ring is equipped with four arc-shaped pieces arranged in a circumferential array. One end of each pair of adjacent rotating rollers is equipped with a sprocket, and a chain is provided on the sprocket. One end of one of the rotating rollers is equipped with a secondary synchronous pulley. Synchronous belts are fitted on the secondary synchronous pulley and the main synchronous pulley.

[0017] As a preferred embodiment of the yellow phosphorus slag coal-saving agent metering structure provided by this utility model, the transmission component includes a rotating rod and a rotating rod rotatably fitted on the side of the conveying shell. A driven gear is installed on the rotating rod, and the driven gear meshes with the driving gear. One of the belt rollers is fixedly connected to the rotating rod. Both the rotating rod and the rotating rod are equipped with pulleys, and a transmission belt is sleeved on the pulleys.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention, through its linear drive component, enables workers to quickly select suitable metering components according to different working conditions and needs. Its fixed structure allows for rapid replacement of metering components based on varying conditions and requirements, improving adaptability and flexibility. Furthermore, its mixing component effectively enhances the addition of coal-saving agents, allowing coal at the bottom to also be added to the coal-saving agent. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of the metering structure for the yellow phosphorus slag coal-saving agent provided in this application;

[0021] Figure 2 A schematic diagram of the base structure for the metering structure of the yellow phosphorus slag coal-saving agent provided in this application;

[0022] Figure 3 A schematic diagram of the L-shaped plate structure for the metering structure of the yellow phosphorus slag coal-saving agent provided in this application;

[0023] Figure 4 A schematic diagram of the scraper cross-sectional structure of the yellow phosphorus slag coal-saving agent metering structure provided in this application;

[0024] Figure 5 A schematic diagram of the storage tank structure for the yellow phosphorus slag coal-saving agent metering structure provided in this application;

[0025] Figure 6 A schematic diagram of the mixing component structure for the metering structure of the yellow phosphorus slag coal-saving agent provided in this application;

[0026] Figure 7A schematic diagram of the feeding belt structure for the metering structure of the yellow phosphorus slag coal-saving agent provided in this application.

[0027] The image shows:

[0028] 1. Base; 101. Drive slot; 102. First motor; 103. Threaded rod; 104. Drive block; 105. Trapezoidal slide; 106. Trapezoidal slider; 107. Mounting plate; 2. L-shaped plate; 201. Electric telescopic rod; 202. Scraper; 3. Insert block; 301. Slot; 302. Fixing ring; 303. Metering ring; 4. Fixing structure; 401. Slot; 402. Square slot; 403. Locking block; 404. Spring; 405. Pull rod; 406. Pull plate; 5. Mounting ring; 501. 502. Storage hopper; 503. Feed pipe; 504. Pipe cover; 505. Discharge pipe; 506. Discharge valve; 6. Conveying shell; 7. Motor; 701. Main synchronous pulley; 702. Synchronous belt; 703. Drive gear; 8. Rotating roller; 801. Mounting ring; 802. Arc-shaped plate; 803. Sprocket; 804. Chain; 805. Secondary synchronous pulley; 9. Belt roller; 901. Feeding belt; 902. Rotating rod; 903. Rotating rod; 904. Driven gear; 905. Pulley; 906. Transmission belt. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] As described in the background art, existing metering devices control the amount of coal-saving agent added by controlling the volume of the receiving cylinder. However, when the coal type and combustion equipment are different, the required dosage of coal-saving agent is also different, which requires replacing the metering receiving cylinder to control the amount of coal-saving agent added, reducing the adaptability and flexibility of the device.

[0035] To solve this technical problem, this utility model provides a metering structure for adding yellow phosphorus slag coal-saving agent.

[0036] For details, please refer to Figure 1-7 The metering structure for adding yellow phosphorus slag coal-saving agent specifically includes: a base 1 and a conveying shell 6. A linear drive component is provided on the base 1, and an L-shaped plate 2 is mounted on the linear drive component. An electric telescopic rod 201 is mounted on the side of the L-shaped plate 2. A scraper 202 is mounted on the output end of the electric telescopic rod 201. A fixing structure 4 is provided on the scraper 202. A metering component is provided on the top of the L-shaped plate 2. The metering component cooperates with the fixing structure 4. An installation plate 107 is mounted on the top of the base 1. A storage component is mounted on the side of the installation plate 107. Two belt rollers 9 are rotatably fitted inside the conveying shell 6. A feeding belt 901 is fitted on the belt rollers 9. A mixing component is provided on the inner wall of the conveying shell 6 above the feeding component. A drive component is mounted on the side of the conveying shell 6. The drive component cooperates with the mixing component. A transmission component is provided between the drive component and the belt rollers 9.

[0037] The linear drive mechanism allows operators to quickly select the appropriate metering components based on different working conditions and needs. The fixed structure enables rapid replacement of metering components according to different working conditions and needs, improving adaptability and flexibility. The mixing component effectively increases the addition effect of coal-saving agent, allowing coal at the bottom to be added to the coal-saving agent.

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] Example 1

[0042] Please refer to Figure 1-7A metering structure for adding a coal-saving agent to yellow phosphorus slag includes: a base 1 and a conveying shell 6. A linear drive is provided on the base 1, and an L-shaped plate 2 is mounted on the linear drive. An electric telescopic rod 201 is mounted on the side of the L-shaped plate 2, and a scraper 202 is mounted on the output end of the electric telescopic rod 201. A fixing structure 4 is provided on the scraper 202. A metering component is provided on the top of the L-shaped plate 2, and the metering component cooperates with the fixing structure 4. An installation plate 107 is mounted on the top of the base 1, and a material storage component is mounted on the side of the installation plate 107. Two belt rollers 9 are rotatably fitted inside the conveying shell 6, and a feeding belt 901 is sleeved on the belt rollers 9. A mixing component is provided on the inner wall of the conveying shell 6 above the feeding component. A drive component is mounted on the side of the conveying shell 6, and the drive component cooperates with the mixing component. A transmission component is provided between the drive component and the belt rollers 9. The linear drive includes a drive groove 101 formed on the top of the base 1. A first motor 102 is installed on one side of the inner wall of the drive groove 101. A threaded rod 103 is installed at the output end of the first motor 102. A drive block 104 is slidably fitted inside the drive groove 101. The drive block 104 is threadedly fitted with the threaded rod 103. A trapezoidal slide groove 105 is formed on the top of the base 1. A trapezoidal slider 106 is slidably fitted inside the trapezoidal slide groove 105. The top of the drive block 104 is fixedly connected to the L-shaped plate 2. The top of the trapezoidal slider 106 is fixedly connected to the L-shaped plate 2. The fixing structure 4 includes multiple slots 401 formed on the side of the scraper 202. Each slot 401 has a square groove 402 at its top. A locking block 403 slides within the square groove 402. A spring 404 is installed between the locking block 403 and the square groove 402. A pull rod 405 is installed on the top of the locking block 403, and the pull rod 405 is movably connected to the scraper 202. A pull plate 406 is installed at the end of the pull rod 405 located outside the scraper 202. The locking block 403 cooperates with the metering component. The metering component includes multiple metering rings 303. A fixing ring 302 is installed on the side of each metering ring 303. An insert block 3 is installed on the side of each fixing ring 302. The insert block 3 cooperates with the slots 401. A slot 301 is formed on the top of the insert block 3, and the slot 301 cooperates with the locking block 403. The volumes formed by the multiple metering rings 303 and the L-shaped plate 2 are all different. The storage assembly includes a mounting ring 5 installed on the side of the mounting plate 107. A storage tank 501 is installed inside the mounting ring 5. A feed pipe 502 connected to the storage tank 501 is installed on the top of the storage tank 501. A pipe cap 503 is threaded onto the feed pipe 502. A discharge pipe 504 connected to the storage tank 501 is installed at the bottom of the storage tank 501. A discharge valve 505 is installed on the discharge pipe 504. The center of the discharge pipe 504 and the center of the metering ring 303 are located on the same vertical line.

[0043] Implementation Process: When quantitative filling of materials is required, the amount of coal-saving agent to be added is determined according to the coal type and combustion equipment. Then, the first motor 102 is started. The first motor 102 rotates forward or reverse, driving the threaded rod 103 to rotate forward or reverse. With the cooperation of the trapezoidal chute 105 and the trapezoidal slider 106, the L-shaped plate 2 moves linearly, thereby positioning the metering ring 303 corresponding to the amount of coal-saving agent added directly below the discharge pipe 504. This allows the device to quickly select the appropriate amount according to different working conditions and needs. The metering ring 303 improves adaptability and flexibility. Then, by opening the discharge valve 505, the coal-saving agent in the storage tank 501 falls into the metering ring 303 through the discharge pipe 504. Finally, by activating the electric telescopic rod 201, the electric telescopic rod 201 moves the metering ring 303 via the scraper 202, positioning the metering ring 303 above the feeding belt 901, causing the coal-saving agent in the metering ring 303 to fall onto the feeding belt 901. Simultaneously, the scraper 202 will move the L-shaped plate 2... The residual coal-saving agent is scraped off and pushed above the feeding belt 901. Under the action of gravity, the residual coal-saving agent falls onto the feeding belt 901. When the volume of the multiple metering rings 303 installed on the scraper 202 is not compatible with the coal type and the coal-saving agent metering required by the combustion equipment, the pull plate 406 is pulled. The pull plate 406 drives the locking block 403 to slide into the square groove 402 through the pull rod 405, releasing the locking block 403 from the groove 301 and facilitating disassembly by the operator. Measuring ring 303 is used, and then the insert block 3 of the measuring ring 303, which has a volume corresponding to the coal type and combustion equipment, is inserted into the slot 401. During the insertion process, the inclined surface of the insert block 3 presses against the inclined surface of the locking block 403, thereby causing the locking block 403 to slide into the square groove 402. Finally, under the action of the spring 404, the locking block 403 is inserted into the locking groove 301, thereby fixing the measuring ring 303. This allows the device to quickly replace the measuring ring 303 according to different working conditions and needs, improving adaptability and flexibility.

[0044] Example 2

[0045] The drive assembly includes a motor 7 mounted on the side of the conveyor housing 6. The output end of the motor 7 is equipped with a main synchronous pulley 701 and a drive gear 703. The main synchronous pulley 701 cooperates with the mixing assembly, and the drive gear 703 cooperates with the transmission assembly. The mixing assembly includes multiple rotating rollers 8 rotatably fitted inside the conveyor housing 6. Each of the multiple rotating rollers 8 is equipped with a mounting ring 801. The side of the mounting ring 801 is equipped with four arc-shaped pieces 802 arranged in a circumferential array. One end of each pair of adjacent rotating rollers 8 is equipped with a sprocket 803, and a chain 804 is mounted on the sprocket 803. One end of one of the rotating rollers 8 is equipped with a secondary synchronous pulley 805. A synchronous belt 702 is fitted onto the secondary synchronous pulley 805 and the main synchronous pulley 701. The sprocket 803 and the chain 804 mesh with each other. The transmission assembly includes a rotating rod 903 and a rotating rod 902 rotatably fitted on the side of the conveyor housing 6. A driven gear 904 is mounted on the rotating rod 903, and the driven gear 904 meshes with the drive gear 703. One of the belt rollers 9 is fixedly connected to the rotating rod 902. Both the rotating rod 903 and the rotating rod 902 are equipped with pulleys 905, and a transmission belt 906 is fitted on the pulleys 905.

[0046] Implementation process: Start motor 7. Motor 7 drives driven gear 904 to rotate via drive gear 703. Driven gear 904 rotates, driving rotating rod 903 to rotate. Rotating rod 903, through pulley 905 and transmission belt 906, drives rotating rod 902 to rotate. Rotating rod 902 causes feeding belt 901 to move the coal on it. Simultaneously, metering ring 303 adds coal-saving agent from above. At the same time, starting motor 7, through main synchronous pulley 701, auxiliary synchronous pulley 805, and synchronous belt 702, drives the corresponding rotating rod... The rotating roller 8 rotates, which drives other rotating rollers 8 to rotate via sprocket 803 and chain 804. The rotation of the rotating roller 8 drives the mounting ring 801 to rotate, and the rotation of the mounting ring 801 drives the arc-shaped plate 802 to rotate. Due to the arrangement of the driven gear 904 and the drive gear 703, the rotation of the mounting ring 801 is opposite to the transport direction of the feeding belt 901. When the arc-shaped plate 802 rotates, it drives the corresponding coal to be turned over, which effectively increases the effect of adding coal-saving agent, and allows the coal at the bottom to be added to the coal-saving agent.

[0047] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A metering structure for adding a coal-saving agent to yellow phosphorus slag, characterized in that, include: The base (1) and the conveying shell (6) are provided. A linear drive is provided on the base (1). An L-shaped plate (2) is installed on the linear drive. An electric telescopic rod (201) is installed on the side of the L-shaped plate (2). A scraper (202) is installed at the output end of the electric telescopic rod (201). A fixing structure (4) is provided on the scraper (202). A metering component is provided on the top of the L-shaped plate (2). The metering component cooperates with the fixing structure (4). An installation plate (107) is installed on the top of the base (1). A storage component is installed on the side of the installation plate (107). Two belt rollers (9) are rotatably fitted inside the conveying shell (6). A feeding belt (901) is fitted on the belt rollers (9). A mixing component is provided on the inner wall of the conveying shell (6) above the feeding component. A driving component is installed on the side of the conveying shell (6). The driving component cooperates with the mixing component. A transmission component is provided between the driving component and the belt rollers (9).

2. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 1, characterized in that, The linear drive includes a drive groove (101) on the top of the base (1). A first motor (102) is installed on one side of the inner wall of the drive groove (101). A threaded rod (103) is installed at the output end of the first motor (102). A drive block (104) is slidably fitted in the drive groove (101). The drive block (104) is threadedly fitted with the threaded rod (103). A trapezoidal slide groove (105) is opened on the top of the base (1). A trapezoidal slider (106) is slidably fitted in the trapezoidal slide groove (105). The top of the drive block (104) is fixedly connected to the L-shaped plate (2). The top of the trapezoidal slider (106) is fixedly connected to the L-shaped plate (2).

3. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 1, characterized in that, The fixing structure (4) includes multiple slots (401) opened on the side of the scraper (202). The top of the inner cavity of each of the multiple slots (401) is provided with a square groove (402). A locking block (403) is slidably fitted in the square groove (402). A spring (404) is installed between the locking block (403) and the square groove (402). A pull rod (405) is installed on the top of the locking block (403). The pull rod (405) is movably connected to the scraper (202). A pull plate (406) is installed at one end of the pull rod (405) located outside the scraper (202). The locking block (403) cooperates with the metering component.

4. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 3, characterized in that, The metering component includes multiple metering rings (303), and fixing rings (302) are installed on the sides of the multiple metering rings (303). Inserts (3) are installed on the sides of the fixing rings (302). The inserts (3) cooperate with slots (401). A slot (301) is opened on the top of the inserts (3), and the slot (301) cooperates with the slots (403).

5. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 1, characterized in that, The storage assembly includes a mounting ring (5) installed on the side of the mounting plate (107), a storage tank (501) installed on the inner side of the mounting ring (5), a feed pipe (502) connected to the storage tank (501) installed on the top of the storage tank (501), a pipe cap (503) threaded onto the feed pipe (502), and a discharge pipe (504) connected to the storage tank (501) installed at the bottom of the storage tank (501), and a discharge valve (505) provided on the discharge pipe (504).

6. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 1, characterized in that, The drive assembly includes a motor (7) mounted on the side of the conveyor housing (6). The output end of the motor (7) is equipped with a main synchronous pulley (701) and a drive gear (703). The main synchronous pulley (701) cooperates with the mixing assembly, and the drive gear (703) cooperates with the transmission assembly.

7. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 6, characterized in that, The mixing assembly includes multiple rotating rollers (8) rotatably fitted within a conveying housing (6). Each of the multiple rotating rollers (8) is equipped with a mounting ring (801). The side of the mounting ring (801) is equipped with four arc-shaped pieces (802) arranged in a circumferential array. One end of each pair of adjacent rotating rollers (8) is equipped with a sprocket (803). A chain (804) is provided on the sprocket (803). One end of one of the rotating rollers (8) is equipped with a secondary synchronous pulley (805). A synchronous belt (702) is fitted on the secondary synchronous pulley (805) and the main synchronous pulley (701).

8. The metering structure for adding a yellow phosphorus slag coal-saving agent according to claim 6, characterized in that, The transmission assembly includes a rotating rod (903) and a rotating rod (902) rotatably fitted on the side of the conveyor housing (6). A driven gear (904) is mounted on the rotating rod (903), and the driven gear (904) meshes with the drive gear (703). One of the belt rollers (9) is fixedly connected to the rotating rod (902). Both the rotating rod (903) and the rotating rod (902) are equipped with pulleys (905), and a transmission belt (906) is fitted on the pulleys (905).

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