Smoke chamber structure capable of preventing material from being poured at kiln tail

Abstract

The utility model relates to the technical field of kiln tail smoke chambers, and discloses a smoke chamber structure capable of preventing a kiln tail from pouring materials. The smoke chamber structure capable of preventing the kiln tail from pouring materials comprises a supporting frame, a connecting ring is fixedly installed above the supporting frame, a limiting pipe is fixedly installed in the connecting ring, a connecting pipe is installed at the rear end of the limiting pipe in a penetrating and inserting mode, a baffle is installed on the front side of the limiting pipe in an embedded mode, and a transmission column is fixedly installed on the front side of the baffle. A stepping motor is fixedly installed below the connecting ring, the guide grooves correspond to transmission columns on the front sides of the baffles one to one in position, when the transmission disc rotates, the guide grooves in the surface of the transmission disc can drive the baffles to slide in sliding grooves in the front ends of the limiting pipes through the transmission columns when the transmission disc rotates, and the hexagonal area defined by the six baffles is adjusted. The hexagonal area between the baffles is smaller than the section area of a pipe cavity of the connecting pipe, the baffles can prevent materials from moving towards the front smoke chamber, and the situation of material pouring is avoided.

Description

Technical Field

[0001] This utility model relates to the field of kiln tail smoke chamber technology, specifically a smoke chamber structure for preventing material spillage at the kiln tail. Background Technology

[0002] The main functions of the rotary kiln smoke chamber include collecting flue gas, discharging flue gas, and feeding materials. The smoke chamber is located at both ends of the rotary kiln. Its main function is to collect flue gas and discharge it into the atmosphere. The smoke chamber at the kiln head facilitates the discharge of heated materials, while the smoke chamber at the kiln tail is connected to the material preheating equipment above, which can add materials to the rotary kiln.

[0003] The existing Chinese utility model patent with publication number CN219328325U discloses a kiln tail smoke chamber, relating to the field of kiln tail smoke chamber technology. The kiln tail smoke chamber includes: a smoke chamber shell, with a constriction at the upper end and a connection port for connecting to a rotary kiln at the lower end; a feed inlet is inclinedly arranged in the middle of the smoke chamber shell; and a scale removal mechanism is installed at the constriction. The scale removal mechanism includes: a scraper, a toothed ring, a gear, and a motor. The scraper is fixedly connected to the inner ring of the toothed ring, which is rotatably connected within the constriction. The toothed ring meshes with the gear for transmission. The motor is mounted and fixedly installed on the side wall of the constriction, and its output end is fixedly connected to the lower end of the gear. By providing the scale removal mechanism, the motor drives the scraper to rotate on the inner wall of the constriction, effectively removing the scale on the constriction and preventing increased system resistance due to scale buildup, thus effectively ensuring production efficiency.

[0004] Because the rotary kiln rotates during operation, the material may accumulate at the kiln tail after entering the kiln, causing material to back up and affecting the heating of the material in the kiln. To prevent this back up, a blocking structure is usually installed inside the kiln tail flue chamber. However, the existing blocking structure is fixed and can affect the entry of material during use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a smoke chamber structure for preventing material spillage at the kiln tail, which has the advantages of avoiding material spillage and preventing obstruction of material from entering the kiln body, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a smoke chamber structure for preventing kiln tail material spillage, comprising: a support frame, a connecting ring fixedly installed above the support frame, a limiting tube fixedly installed inside the connecting ring, a connecting pipe inserted at the rear end of the limiting tube, a baffle fitted on the front side of the limiting tube, a transmission column fixedly installed on the front side of the baffle, a stepper motor fixedly installed below the connecting ring, a drive gear fixedly installed on the outer side of the stepper motor's shaft, a limiting bearing fitted inside the front end of the connecting pipe, a transmission disc inserted inside the limiting bearing, a guide groove provided on the surface of the transmission disc, a gear ring fixedly installed on the outer side of the transmission disc, a sealing plate fixedly installed on the front side of the transmission disc, a connecting bearing fixedly installed inside the transmission disc, a smoke chamber inserted inside the connecting bearing, a feed pipe inserted at the upper end of the smoke chamber, a smoke exhaust port fixedly installed below the smoke chamber, and a fixing frame fixedly installed below the smoke chamber; the support frame can support the connecting ring.

[0009] As a preferred embodiment of this utility model, the front side of the limiting tube is provided with a disc-shaped protrusion structure, the front end of the limiting tube is provided with a hexagonal sliding groove, and the front end of the connecting tube is flush with the front end of the limiting tube; the limiting tube can restrict the position of the baffle.

[0010] As a preferred technical solution of this utility model, the tip of the baffle is 60 degrees, and a rectangular protrusion that fits into the sliding groove structure of the limiting tube is provided on the rear side of the baffle. There are six baffles in total, which are installed in a ring around the axis of the limiting tube and inside the sliding groove on the front side of the limiting tube. The baffles and the limiting tube are slidably connected. The baffles can prevent materials from entering the smoke chamber and causing material spillage.

[0011] As a preferred technical solution of this utility model, the transmission disk is rotatably connected to the connecting ring through a limiting bearing, and the guide grooves are distributed in a ring on the surface of the transmission disk with the center of the transmission disk as the reference, and the included angle between the adjacent guide grooves and the axis of the transmission disk is 60 degrees; the guide grooves can drive the baffle to move through the transmission column.

[0012] As a preferred embodiment of this utility model, the transmission column is located inside the guide groove, the baffle is slidably connected to the guide groove through the transmission column, the drive gear meshes with the gear ring, and the smoke chamber is a tubular structure with a closed rear end; the drive gear can drive the gear ring to rotate.

[0013] As a preferred embodiment of this utility model, the smoke chamber is rotatably connected to the transmission disc via a connecting bearing, and the inner diameter of the smoke chamber is the same as the inner diameter of the connecting pipe; the smoke chamber facilitates the discharge of smoke.

[0014] As a preferred embodiment of this utility model, the bottom end of the feed pipe is located at the center of the transmission disc, and the rear end of the feed pipe and the front end of the baffle are in the same plane. A rectangular opening structure is provided below the smoke chamber. The feed pipe facilitates the addition of materials.

[0015] Compared with the prior art, this utility model provides a smoke chamber structure to prevent kiln tail material spillage, which has the following beneficial effects:

[0016] 1. This utility model features six baffles. The rear side of each baffle has a rectangular protrusion that fits into the sliding groove structure of the limiting tube. These baffles are arranged in a ring around the axis of the limiting tube and installed inside the sliding groove on the front side of the limiting tube. The baffles and the limiting tube are slidably connected. The transmission disc is rotatably connected to the connecting ring via a limiting bearing. Guide grooves are arranged in a ring around the center of the transmission disc, with adjacent guide grooves forming a 60-degree angle with the axis of the transmission disc. The guide grooves correspond one-to-one with the transmission column on the front side of the baffles. When the transmission disc rotates, the guide grooves on the surface of the transmission disc can drive the baffles to slide inside the sliding groove at the front end of the limiting tube via the transmission column. By adjusting the hexagonal area enclosed by the six baffles, the hexagonal area between the baffles is made smaller than the cross-sectional area of ​​the connecting tube cavity. The baffles prevent material from moving forward into the smoke chamber, thus avoiding material spillage.

[0017] 2. This utility model features a feed pipe with its bottom end located at the center of the transmission disc, and the rear end of the feed pipe and the front end of the baffle in the same plane. The top end of the feed pipe has a flared opening. Due to the inclined structure at the bottom of the feed pipe, the material will continuously accelerate during its descent as it slides inside the feed pipe. When the material exits the feed pipe, it will have a certain acceleration and continue to move towards the connecting pipe for a period of time during its descent, thus allowing the material to pass over the baffle after exiting the feed pipe, preventing the material from being unable to enter the kiln body. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the connecting ring installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the transmission disc mounting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the smoke chamber installation structure of this utility model;

[0022] The components are as follows: 1. Support frame; 11. Connecting ring; 12. Limiting tube; 13. Connecting tube; 14. Baffle; 15. Transmission column; 16. Stepper motor; 17. Drive gear; 18. Limiting bearing; 19. Transmission disc; 110. Guide groove; 111. Gear ring; 112. Sealing plate; 113. Connecting bearing; 114. Smoke chamber; 115. Feed pipe; 116. Smoke outlet; 117. Fixing frame. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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 of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4In this embodiment, a smoke chamber structure for preventing kiln tail spillage includes: a support frame 1; a connecting ring 11 is fixedly installed above the support frame 1; a limiting tube 12 is fixedly installed inside the connecting ring 11; a connecting tube 13 is inserted through the rear end of the limiting tube 12; a baffle 14 is fitted into the front side of the limiting tube 12; a transmission column 15 is fixedly installed into the front side of the baffle 14; a stepper motor 16 is fixedly installed below the connecting ring 11; a drive gear 17 is fixedly installed on the outer side of the stepper motor 16's shaft; and a limiting shaft is fitted into the front end of the connecting tube 13. A transmission disc 19 is installed inside the limiting bearing 18. A guide groove 110 is provided on the surface of the transmission disc 19. A toothed ring 111 is fixedly installed on the outer side of the transmission disc 19. A sealing plate 112 is fixedly installed on the front side of the transmission disc 19. A connecting bearing 113 is fixedly installed inside the transmission disc 19. A smoke chamber 114 is installed inside the connecting bearing 113. A feed pipe 115 is installed at the upper end of the smoke chamber 114. A smoke exhaust port 116 is fixedly installed at the lower part of the smoke chamber 114. A fixing bracket 117 is fixedly installed at the lower part of the smoke chamber 114.

[0027] The front side of the limiting tube 12 is provided with a disc-shaped protrusion, and the front end of the limiting tube 12 is provided with a hexagonal groove. The front end of the connecting tube 13 is flush with the front end of the limiting tube 12. The tip of the baffle 14 is at a 60-degree angle. The rear side of the baffle 14 is provided with a rectangular protrusion that fits into the groove structure of the limiting tube 12. There are six baffles 14 in total, which are installed in a ring around the axis of the limiting tube 12 inside the groove on the front side of the limiting tube 12. The baffles 14 and the limiting tube 12 are slidably connected. The transmission disc 19 is rotatably connected to the connecting ring 11 through the limiting bearing 18. The guide groove 110 is distributed in a ring around the center of the transmission disc 19 on the surface of the transmission disc 19. The angle formed by the adjacent guide groove 110 and the axis of the transmission disk 19 is 60 degrees. The transmission column 15 is located inside the guide groove 110. The baffle 14 is slidably connected to the guide groove 110 through the transmission column 15. The drive gear 17 and the gear ring 111 mesh with each other. The smoke chamber 114 is a tubular structure with a closed rear end. The smoke chamber 114 is rotatably connected to the transmission disk 19 through the connecting bearing 113. The inner diameter of the smoke chamber 114 is the same as the inner diameter of the connecting pipe 13. The bottom end of the feed pipe 115 is located at the center of the transmission disk 19, and the rear end of the feed pipe 115 is in the same plane as the front end of the baffle 14. A rectangular opening structure is provided below the smoke chamber 114.

[0028] Specifically, the support frame 1 can limit the position of the connecting ring 11. The rear end of the connecting ring 11 is connected to the limiting tube 12, and the front end is connected to the transmission disk 19 through the limiting bearing 18. It can limit the distance between the limiting tube 12 and the transmission disk 19, so as to limit the baffle 14 inside the hexagonal groove at the front end of the limiting tube 12. The baffle 14 can move along one side of the hexagonal groove at the front end of the limiting tube 12 to adjust its own position and block the material. The transmission column 15 can easily drive the baffle 14 to move when the transmission disk 19 rotates. The stepper motor 16 can drive the drive gear 17 to rotate. The limiting bearing 18 can... To facilitate the rotation of the transmission disc 19, the guide groove 110 on the surface of the transmission disc 19 can drive the baffle 14 to slide inside the slide groove at the front end of the limiting tube 12 through the transmission column 15 when the transmission disc 19 rotates. Adjusting the hexagonal area enclosed by the six baffles 14, the gear ring 111 can drive the transmission disc 19 to rotate. The sealing plate 112 can close the front end of the guide groove 110. The connecting bearing 113 ensures that the transmission disc 19 cannot affect the smoke chamber 114 when it rotates. The smoke chamber 114 can guide the smoke to be discharged from the exhaust port 116. The fixing bracket 117 is fixed below the front end of the smoke chamber 114 and provides support for the smoke chamber 114.

[0029] In use, the rear side of the baffle 14 is provided with a rectangular protrusion that fits into the sliding groove structure of the limiting tube 12. There are six baffles 14 in total, which are installed in a ring around the axis of the limiting tube 12 and inside the sliding groove on the front side of the limiting tube 12. The baffles 14 and the limiting tube 12 are slidably connected. The transmission disc 19 is rotatably connected to the connecting ring 11 through the limiting bearing 18. The guide grooves 110 are distributed in a ring around the center of the transmission disc 19 on the surface of the transmission disc 19. The angle formed by adjacent guide grooves 110 and the axis of the transmission disc 19 is 60 degrees. The guide grooves 110 correspond one-to-one with the positions of the transmission column 15 on the front side of the baffle 14. When the transmission disc 19 rotates, the guide grooves 110 on the surface of the transmission disc 19 can drive the baffle 14 in the sliding groove at the front end of the limiting tube 12 through the transmission column 15. The material slides and adjusts the hexagonal area formed by the six baffles 14, making the hexagonal area between the baffles 14 smaller than the cross-sectional area of ​​the connecting pipe 13. The baffles 14 will block the material from moving forward into the smoke chamber 114, preventing material from backflow. The bottom end of the feed pipe 115 is located at the center of the transmission disc 19, and the rear end of the feed pipe 115 is in the same plane as the front end of the baffles 14. The top end of the feed pipe 115 is provided with a flared mouth. Because the bottom of the feed pipe 115 is inclined, the material will continuously accelerate during the falling process when sliding inside the feed pipe 115. When the material is discharged from the feed pipe 115, it will have a certain acceleration and continue to move towards the connecting pipe 13 for a period of time during the falling process, so that the material can pass over the baffles 14 when it is discharged from the feed pipe 115, avoiding the situation where the material cannot enter the kiln body.

[0030] Although 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 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 smoke chamber structure for preventing material from falling out of a kiln tail, characterized by comprising: The utility model relates to a kind of smoke chamber structures of preventing kiln tail material, including: Support frame (1), the upper fixed mounting of support frame (1) is connected ring (11), the inside fixed mounting of connected ring (11) is limit tube (12), the rear end of limit tube (12) is inserted and installed with connecting pipe (13), the front side of limit tube (12) is embedded and installed with baffle (14), the front side of baffle (14) is fixedly installed with transmission column (15), the lower fixed mounting of connected ring (11) is step motor (16), the rotating shaft outside of step motor (16) is fixedly installed with drive gear (17), the front end inside of connecting pipe (13) is embedded and installed with limit bearing (18), the inside of limit bearing (18) is inserted and installed with transmission disc (19), the surface of transmission disc (19) is provided with guide slot (110), the outside of transmission disc (19) is fixedly installed with gear ring (111), the front side of transmission disc (19) is fixedly installed with sealing plate (112), the inside of transmission disc (19) is fixedly installed with connecting bearing (113), the inside of connecting bearing (113) is inserted and installed with smoke chamber (114), the upper end of smoke chamber (114) is inserted and installed with inlet pipe (115), the lower fixed mounting of smoke chamber (114) is exhaust port (116), the lower fixed mounting of smoke chamber (114) is fixed frame (117).

2. According to the smoke chamber structure of preventing kiln tail material of claim 1, wherein: The front side of limit tube (12) is provided with disc-shaped convex structure, the front end of limit tube (12) is provided with hexagonal sliding groove, the front end of connecting pipe (13) is flush with the front end of limit tube (12).

3. According to the smoke chamber structure of preventing kiln tail material of claim 1, wherein: The tip of baffle (14) is sixty degrees, the rear side of baffle (14) is provided with rectangular convex that is embedded with limit tube (12) sliding groove structure, baffle (14) has six, and is installed in the inside of limit tube (12) front side sliding groove with limit tube (12) as reference, and baffle (14) and limit tube (12) form sliding connection.

4. According to the smoke chamber structure of preventing kiln tail material of claim 1, wherein: Transmission disc (19) forms rotary connection between limit bearing (18) and connected ring (11), guide slot (110) is annularly distributed on the surface of transmission disc (19) with the center of transmission disc (19) as reference, and the included angle formed by adjacent guide slot (110) and transmission disc (19) shaft is sixty degrees.

5. According to the smoke chamber structure of preventing kiln tail material of claim 1, wherein: Transmission column (15) is located in guide slot (110), baffle (14) forms sliding connection between transmission column (15) and guide slot (110), drive gear (17) and gear ring (111) are engaged with each other, and smoke chamber (114) is tubular structure with rear end closed.

6. The kiln tail material falling prevention smoke chamber structure according to claim 1, characterized in that: The smoke chamber (114) is rotatably connected between the connecting bearing (113) and the transmission disc (19), and the inner diameter of the smoke chamber (114) is consistent with the inner diameter of the connecting pipe (13).

7. The kiln tail material falling prevention smoke chamber structure according to claim 1, characterized in that: The bottom end of the feeding pipe (115) is located at the center of the transmission disc (19), and the rear end of the feeding pipe (115) and the front end of the baffle (14) are in the same plane, and a rectangular opening structure is arranged below the smoke chamber (114).

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