Feeding device of pulverized coal burner for rotary kiln

Abstract

The utility model relates to the field of rotary kilns, discloses a feeding device of a pulverized coal burner for a rotary kiln, and solves the problem that the inner wall cleaning effect of an existing feeding device of the pulverized coal burner for the rotary kiln is poor. Through the extension plate, the air cylinders, the magnet blocks, the magnet rings and the scraping plate, the air cylinders on the surface of the extension plate are started through an external button, and the two air cylinders drive the magnet blocks at the output end to move towards the discharging port, so that the two magnet blocks drive the magnet rings with heteropoles attracted to move in the shell; and the magnet ring drives the connected scraper blade to clean and eradicate the pulverized coal adhered to the inner wall of the shell, so that the pulverized coal is discharged from the discharge port to be poured, the inner wall is kept clean, and the working efficiency and stability of equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a feeding device for a pulverized coal burner of a rotary kiln. Background Technique

[0002] The pulverized coal burner in the rotary kiln needs to continuously supply an appropriate amount of pulverized coal to maintain the stability and efficiency of combustion. The feeding device can transport the pulverized coal from the storage or conveying equipment to the burner to ensure the continuous supply of pulverized coal. During the operation and use of the current feeding device for the pulverized coal burner of the rotary kiln, the pulverized coal accumulated on the inner wall will hinder the mixing and combustion of air and pulverized coal, reduce the combustion efficiency, and at the same time increase the waste and emission of pulverized coal. The pulverized coal accumulated on the inner wall will increase the load and wear of the equipment, and reduce the service life and reliability of the equipment. Content of the Utility Model

[0003] The purpose of the utility model is to provide a feeding device for a pulverized coal burner of a rotary kiln. By using this device for work, the problem of poor cleaning effect on the inner wall of the existing feeding device for the pulverized coal burner of the rotary kiln is solved.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A feeding device for a pulverized coal burner of a rotary kiln, including a housing, a feed inlet opened on the surface of the housing, a discharge outlet opened at the other end of the housing, a screw rod arranged inside the housing, a driving rod arranged at one end of the screw rod, a motor arranged at one end of the driving rod, and a vertical plate arranged at one end of the motor. A cleaning structure is arranged inside the housing;

[0005] The cleaning structure includes an extension plate arranged on the surface of the housing, a cylinder arranged at one end of the extension plate, a magnet block arranged at the output end of the cylinder, a magnet ring arranged inside the housing, and a scraper arranged at one end of the magnet ring.

[0006] Further, the magnet ring and the magnet block attract each other with opposite poles. There are two groups of magnet blocks symmetrically distributed about the housing, and the two groups of magnet blocks attract the two ends of the magnet block.

[0007] Further, the diameter of the magnet block is the same as that of the inner wall of the housing, and the diameter of the scraper is the same as that of the housing.

[0008] Further, a dispersing structure is arranged inside the feed inlet. The dispersing structure includes a belt sleeved on the surface of the driving rod, a rotating rod sleeved on one end of the belt, one end of the rotating rod is movably connected with a fixing plate, and the fixing plate is connected with the motor housing.

[0009] Further, a driven rod is arranged at the other end of the rotating rod. The driven rod penetrates through a rod groove opened on the surface of the feed inlet, and a hitting rod is arranged on the surface of the driven rod.

[0010] Further, a filtering structure is provided inside the feed inlet. The filtering structure includes a cam provided on the surface of the driven rod, and a filter screen is provided inside the feed inlet.

[0011] Further, a sliding groove is formed in the inner wall of the feed inlet, a slider slides inside the sliding groove, and the slider is connected to the filter screen.

[0012] Further, one end of the slider is provided with a spring, and one end of the spring is connected to the inner wall of the sliding groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For the feeding device of the pulverized coal burner for the rotary kiln proposed by the present utility model, the cleaning effect of the inner wall of the feeding device of the existing pulverized coal burner for the rotary kiln is poor; while the present utility model uses the extension plate, cylinder, magnet block, magnet ring and scraper. By pressing the external button to start the cylinder on the surface of the extension plate, the two cylinders drive the magnet blocks at the output ends to move towards the discharge port. Thus, the two magnet blocks drive the magnet rings with opposite poles attracting each other to move inside the housing. The magnet rings drive the connected scrapers to clean and remove the pulverized coal adhered to the inner wall of the housing, and then pour it out of the discharge port to keep the inner wall clean, improving the working efficiency and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is the overall three-dimensional sectional structure schematic diagram of the present utility model;

[0017] Figure 3 is the three-dimensional structure schematic diagram of the cleaning structure of the present utility model;

[0018] Figure 4 is the three-dimensional structure schematic diagram of the dispersing structure and the filtering structure of the present utility model.

[0019] In the figure: 1, housing; 2, feed inlet; 3, discharge port; 4, motor; 5, driving rod; 6, screw rod; 7, dispersing structure; 71, belt; 72, rotating rod; 73, fixing plate; 74, driven rod; 75, beating rod; 8, filtering structure; 81, cam; 82, filter screen; 83, slider; 84, sliding groove; 85, spring; 9, cleaning structure; 91, extension plate; 92, cylinder; 93, magnet block; 94, magnet ring; 95, scraper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0022] Combined with Figures 1 - 3 , a feeding device for a pulverized coal burner for a rotary kiln, including a housing 1, a feed inlet 2 opened on the surface of the housing 1, a discharge outlet 3 opened at the other end of the housing 1, a screw rod 6 arranged inside the housing 1, a driving rod 5 arranged at one end of the screw rod 6, a motor 4 arranged at one end of the driving rod 5, a vertical plate arranged at one end of the motor 4, and a cleaning structure 9 arranged inside the housing 1.

[0023] The present invention will be further described below in conjunction with embodiments.

[0024] Embodiment 1:

[0025] Please refer to Figures 1 - 3 , the cleaning structure 9 includes an extension plate 91 arranged on the surface of the housing 1, a cylinder 92 arranged at one end of the extension plate 91, a magnet block 93 arranged at the output end of the cylinder 92, a magnet ring 94 arranged inside the housing 1, and a scraping plate 95 arranged at one end of the magnet ring 94. The magnet ring 94 and the magnet block 93 attract each other with opposite poles. There are two groups of magnet blocks 93 symmetrically distributed about the housing 1. The two groups of magnet blocks 93 attract the two ends of the magnet block 93. The diameter of the magnet block 93 is the same as that of the inner wall of the housing 1, and the diameter of the scraping plate 95 is the same as that of the housing 1, keeping the inner wall clean and improving the working efficiency and stability of the equipment.

[0026] Specifically, pulverized coal is input into the interior of the housing 1 through the feed inlet 2, and then the motor 4 is started to drive the driving rod 5 at the output end to rotate. The driving rod 5 drives the screw rod 6 to rotate to input the pulverized coal into the interior of the burner through the discharge outlet 3. However, after long-term use, the inner wall of the housing 1 adheres to pulverized coal and the discharge is not clean, and manual cleaning is rather troublesome. The cylinder 92 on the surface of the extension plate 91 is started through an external button. The two groups of cylinders 92 drive the magnet blocks 93 at the output end to move towards the discharge outlet 3. Thus, the two groups of magnet blocks 93 drive the magnet ring 94 attracted by opposite poles to move inside the housing 1. The magnet ring 94 drives the connected scraping plate 95 to clean and remove the pulverized coal adhered to the inner wall of the housing 1, and then pour it out through the discharge outlet 3, keeping the inner wall clean and improving the working efficiency and stability of the equipment.

[0027] Embodiment 2:

[0028] Please refer to Figure 4 , there is a pulverizing structure 7 inside the feed inlet 2. The pulverizing structure 7 includes a belt 71 sleeved on the surface of the driving rod 5, a rotating rod 72 sleeved on one end of the belt 71, one end of the rotating rod 72 is movably connected to a fixing plate 73, the fixing plate 73 is connected to the outer shell of the motor 4, the other end of the rotating rod 72 is provided with a driven rod 74, the driven rod 74 penetrates through a rod groove opened on the surface of the feed inlet 2, and a punching rod 75 is arranged on the surface of the driven rod 74, which is convenient for pulverizing the lumpy pulverized coal for feeding.

[0029] There is a filtering structure 8 inside the feed inlet 2. The filtering structure 8 includes a cam 81 arranged on the surface of the driven rod 74, a filter screen 82 is arranged inside the feed inlet 2, a sliding groove 84 is opened on the inner wall of the feed inlet 2, a slider 83 slides inside the sliding groove 84, the slider 83 is connected to the filter screen 82, one end of the slider 83 is provided with a spring 85, and one end of the spring 85 is connected to the inner wall of the sliding groove 84. The filter screen 82 filters impurities in the pulverized coal.

[0030] Specifically, the driving rod 5 drives the belt 71 to drive, the belt 71 drives the rotating rod 72 to rotate, the rotating rod 72 is connected to the outer shell of the motor 4 through the movably connected fixing plate 73, and the rotating rod 72 drives multiple punching rods 75 on the surface of the driven rod 74 to pulverize the lumpy pulverized coal inside the feed inlet 2 for convenient feeding. One end of the driven rod 74 is movably connected to the inner wall of the feed inlet 2, the driven rod 74 drives the cam 81 to rotate downward, the cam 81 pushes the filter screen 82 below, the filter screen 82 drives the sliders 83 at both ends to slide downward inside the sliding groove 84, and the sliders 83 drive the spring 85 to stretch and store energy. When the driven rod 74 drives the cam 81 to rotate upward, the cam 81 does not push the filter screen 82 downward, and the filter screen 82 moves upward and returns to its original position through the resilience of the spring 85. Thus, the filter screen 82 is in a vibrating state, and the filter screen 82 filters impurities in the pulverized coal to improve the quality of feeding.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a pulverized coal burner for a rotary kiln, comprising a housing (1), a feeding port (2) provided on the surface of the housing (1), a discharging port (3) provided at the other end of the housing (1), a screw rod (6) arranged inside the housing (1), a driving rod (5) arranged at one end of the screw rod (6), a motor (4) arranged at one end of the driving rod (5), and a vertical plate arranged at one end of the motor (4), characterized in that: A cleaning structure (9) is provided inside the housing (1); The cleaning structure (9) comprises an extension plate (91) arranged on the surface of the housing (1), a cylinder (92) arranged at one end of the extension plate (91), a magnet block (93) arranged at the output end of the cylinder (92), a magnet ring (94) arranged inside the housing (1), and a scraper (95) arranged at one end of the magnet ring (94).

2. The feeding device of a pulverized coal burner for a rotary kiln according to claim 1, characterized in that: The magnet ring (94) and the magnet block (93) have opposite poles that attract each other. Two groups of magnet blocks (93) are symmetrically distributed about the housing (1). The two groups of magnet blocks (93) attract each other at both ends of the magnet block (93).

3. The feeding device of the pulverized coal burner for a rotary kiln according to claim 2, characterized in that: The magnet block (93) has the same diameter as the inner wall of the outer shell (1), and the scraper (95) has the same diameter as the outer shell (1).

4. The feeding device of the pulverized coal burner for a rotary kiln according to claim 1, characterized in that: The feed port (2) is provided with a scattering structure (7) inside, the scattering structure (7) comprising a belt (71) sleeved on the surface of the driving rod (5), a rotating rod (72) sleeved on one end of the belt (71), one end of the rotating rod (72) being movably connected to a fixing plate (73), and the fixing plate (73) being connected to the housing of the motor (4).

5. The feeding device of the pulverized coal burner for a rotary kiln according to claim 4, characterized in that: A driven rod (74) is provided at the other end of the rotating rod (72). The driven rod (74) penetrates a rod groove provided on the surface of the feed port (2). A striking rod (75) is provided on the surface of the driven rod (74).

6. The feeding device of the pulverized coal burner for a rotary kiln according to claim 5, characterized in that: A filtering structure (8) is arranged inside the feed port (2), the filtering structure (8) comprises a cam (81) arranged on the surface of the driven rod (74), and a filter screen (82) is arranged inside the feed port (2).

7. The feeding device of the pulverized coal burner for a rotary kiln according to claim 6, characterized in that: The inner wall of the feed port (2) is provided with a slide groove (84), a slider (83) slides inside the slide groove (84), and the slider (83) is connected to the filter screen (82).

8. The feeding device of the pulverized coal burner for a rotary kiln according to claim 7, characterized in that: A spring (85) is disposed at one end of the sliding block (83), and one end of the spring (85) is connected to the inner wall of the sliding groove (84).

Images