A sealing valve cloth distribution device for an active lime double chamber kiln

Abstract

The utility model discloses a kind of active lime double hearth kiln sealing valve distributing device, including feeding mechanism, two-way conveying mechanism for conveying limestone material to the double hearth kiln mouth direction is set in the export end of feeding mechanism, the distributing mechanism for guiding limestone material to kiln mouth is correspondingly set in the export end of two-way conveying mechanism, the distributing mechanism includes the distributor arranged in the butt joint of double hearth kiln mouth, and the sealing valve for receiving limestone material is arranged above distributor, the lower part of the sealing valve is butt joint with double hearth kiln mouth, the utility model simplifies the structure of distributing device, reduces equipment failure rate, improves equipment stability and service life, simultaneously sealing valve is closed structure after installation is completed, when distributing in kiln hearth, dust will not be caused by sealing valve valve plate opening and overflow and raise, simultaneously sealing valve valve plate is the structure of being closed upwards, when being subjected to kiln hearth airflow pressure, it can make valve plate further compact valve body sealing surface, ensure the sealing property of kiln hearth.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a material distribution device for a double-chamber kiln sealing valve of active lime. Background Technology

[0002] The active lime double-chamber kiln adds limestone into the kiln chamber for calcination through a kiln top feeding system. In actual production applications, there are two main traditional feeding devices: one is to feed the material into the kiln chamber through equipment such as reversible belt conveyors, rotating hoppers, and kiln top feed valves; the other is to feed the material into the kiln chamber through equipment such as three-way valves and chutes.

[0003] According to the production process of the double-chamber kiln for quicklime, the equipment of its feeding system has the characteristic of frequent switching of operation. The traditional feeding device is a feeding device that uses a reversible belt conveyor, a rotating hopper, a kiln top feed valve or a three-way valve, and a chute. These two types of feeding devices have problems such as large initial investment, dust generation at the work site, poor equipment stability, high failure rate, and poor sealing of the kiln chamber. Utility Model Content

[0004] Technical objective: To address the shortcomings of existing double-chamber kiln feeding mechanisms, this utility model discloses a sealing valve feeding device for an active lime double-chamber kiln.

[0005] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution: A material distribution device for a double-chamber kiln sealing valve for quicklime includes a feeding mechanism, a bidirectional conveying mechanism at the outlet end of the feeding mechanism for conveying limestone material to the kiln opening of the double-chamber kiln, and a material distribution mechanism at the outlet end of the bidirectional conveying mechanism for guiding the limestone material to the kiln opening. The material distribution mechanism includes a material distributor connected to the kiln opening of the double-chamber kiln and a sealing valve above the material distributor for receiving limestone material. The lower part of the sealing valve is connected to the kiln opening of the double-chamber kiln, and a sealing valve plate is provided on the upper part of the sealing valve. The end of the sealing valve plate is rotatably engaged with the valve body of the sealing valve. A drive assembly is provided on the lower surface of the sealing valve plate for driving the sealing valve plate to rotate and open and close. A sealing surface is provided on the valve body of the sealing valve to cooperate with the upper surface of the sealing valve plate. When the sealing valve is closed, the upper surface of the sealing valve plate abuts against the sealing surface to seal.

[0006] Preferably, the drive assembly of this utility model includes a hydraulic cylinder and a connecting plate hinged to the drive end of the hydraulic cylinder. The sealing valve plate and the connecting plate are connected by a rotating shaft. The hydraulic cylinder is rotatably mounted on the valve body. A double linkage structure is formed by the hydraulic cylinder and the connecting plate. The extension and retraction of the hydraulic cylinder drives the sealing valve plate to open and close.

[0007] Preferably, the valve body of this invention has a tapered guide groove above the sealing surface, through which limestone material is guided into the valve body.

[0008] Preferably, the sealing valve of this utility model is detachably connected to a buffer chute for buffering limestone material. The limestone material received is temporarily stored in the buffer chute to maintain the material supply to the corresponding double-chamber kiln opening.

[0009] Preferably, the upper part of the buffer chute of this invention is a cylindrical structure, and the lower part is a tapered structure that gradually transitions from the lower end of the cylinder to the feed inlet of the sealing valve.

[0010] Preferably, the bidirectional conveying mechanism of this utility model is a reversible belt conveyor, and discharge housings connected to corresponding buffer chutes are provided at both ends of the reversible belt conveyor.

[0011] Preferably, the feeding mechanism of this utility model includes a weighing hopper and a vibrating feeder disposed below the weighing hopper, and the vibrating feeder conveys the material in the weighing hopper to the bidirectional conveying mechanism.

[0012] Beneficial Effects: This utility model adopts a sealing valve feeding device, eliminating the need for the rotating hopper, kiln top feed valve, or three-way valve associated with existing feeding mechanisms. The structure is simple and compact, saving space and reducing investment costs. Furthermore, by eliminating the rotating hopper and kiln top feed valve, this utility model also eliminates their associated drive cylinders, motors, and limit switches. This significantly reduces the equipment failure rate, improves equipment stability and service life, and ensures the reliability of this utility model, especially considering the frequent switching characteristics of the active lime double-chamber kiln feeding system. Simultaneously, the sealing valve has a closed structure after installation, preventing dust from overflowing and being stirred up when the valve plate opens during kiln feeding. The upward-closing valve plate further presses against the valve body sealing surface under kiln airflow pressure, ensuring the kiln's airtightness. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is an overall structural diagram of the fabric-laying device of this utility model; Figure 2 This is a structural diagram of the sealing valve of this utility model; Among them, 1-double-chamber kiln inlet, 2-material distributor, 3-sealing valve, 4-sealing valve plate, 5-valve body, 6-hydraulic cylinder, 7-connecting plate, 8-rotating shaft, 9-material guide chute, 10-buffer chute, 11-reversible belt conveyor, 12-discharge shell, 13-weighing hopper, 14-vibrating feeder, 15-maintenance door. Detailed Implementation

[0015] Reference will now be made in detail to embodiments of the present disclosure, one or more of which are set forth herein. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. Rather, the following description provides convenient illustrations for implementing exemplary embodiments of the present disclosure. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the teachings of the present disclosure without departing from the scope or spirit of the present disclosure.

[0016] like Figure 1 and Figure 2 As shown, this utility model discloses a material distribution device for a double-chamber kiln sealing valve for quicklime, including a feeding mechanism. A bidirectional conveying mechanism for transporting limestone material to the kiln opening of the double-chamber kiln is provided at the outlet end of the feeding mechanism. A material distribution mechanism for guiding the limestone material to the kiln opening is correspondingly provided at the outlet end of the bidirectional conveying mechanism. The material distribution mechanism includes a material distributor 2 connected to the kiln opening 1 of the double-chamber kiln, and a sealing valve 3 located above the material distributor 2 for receiving limestone material. The lower part of the sealing valve 3... The material distributor 2 is installed inside the kiln shell below the feed inlet at the top of the kiln shell and has an inverted conical structure. The sealing valve 3 is provided with a sealing valve plate 4 at the top. The end of the sealing valve plate 4 is rotatably engaged with the valve body 5 of the sealing valve. A drive assembly for driving the sealing valve plate 4 to rotate and open and close is provided on the lower surface of the sealing valve plate 4. A sealing surface is provided on the valve body 5 of the sealing valve 3 to cooperate with the upper surface of the sealing valve plate 4. When the sealing valve 3 is closed, the upper surface of the sealing valve plate 4 abuts against the sealing surface to seal.

[0017] After installation, the sealing valve of this utility model can seal between itself and the kiln opening 1 of the double-chamber kiln and the bidirectional conveying mechanism, so that dust will not overflow and be raised when the sealing valve plate is opened during material distribution; and the sealing valve plate has an upward closing structure, which will further press the valve plate against the valve body sealing surface when subjected to the airflow pressure in the kiln chamber, improving the sealing effect and ensuring the sealing of the kiln chamber; and an inspection door 15 is also opened on the side wall of the valve body 5 to facilitate the inspection and maintenance of the sealing valve.

[0018] In a specific embodiment, the drive assembly of this utility model includes a hydraulic cylinder 6 and a connecting plate 7 hinged to the drive end of the hydraulic cylinder 6. The sealing valve plate 4 and the connecting plate 7 are connected by a rotating shaft 8. The hydraulic cylinder 6 is rotatably mounted on the valve body 5. The hydraulic cylinder 6 and the connecting plate 7 form a double linkage structure. The extension and retraction of the hydraulic cylinder 6 drives the sealing valve plate 4 to open and close. The valve body 5 is provided with a tapered guide groove 9 above the sealing surface. The guide groove 9 guides the raw material limestone to the center of the valve body, preventing the raw material limestone from hitting the sealing surface on the valve body during movement.

[0019] To avoid frequent switching of the bidirectional conveying mechanism for material transport and to maintain a continuous supply of material to the double-chamber kiln, a buffer chute 10 for buffering limestone material is detachably connected above the sealing valve 3 of this invention. The buffer chute 10 temporarily stores the received limestone material, maintaining the material supply to the corresponding double-chamber kiln opening. The upper part of the buffer chute 10 is a cylindrical structure, ensuring its volume meets usage requirements. The lower part is a tapered structure that gradually transitions from the lower end of the cylinder to the inlet of the sealing valve, ensuring uniform material discharge from the outlet and preventing uneven material distribution.

[0020] The bidirectional conveying mechanism of this utility model is a reversible belt conveyor 11. At both ends of the reversible belt conveyor 11, there are discharge housings 12 that are connected to the corresponding buffer chutes 10. The feeding mechanism includes a weighing hopper 13 and a vibrating feeder 14 disposed below the weighing hopper 13. The material in the weighing hopper 13 is conveyed to the bidirectional conveying mechanism by the vibrating feeder 14.

[0021] In use, the weighing hopper 13 is installed on the top of the kiln to receive and store the raw limestone transported to the top of the kiln by the feeding trolley. The vibrating feeder 14 is installed at the outlet of the weighing hopper 13, and the reversible belt conveyor 11 is installed below the outlet of the vibrating feeder 14. The feeding trolley pours the raw limestone into the weighing hopper 13. The raw limestone passes through the vibrating feeder 14 and the reversible belt conveyor 11 and enters the buffer chute 10. The material conveying direction is switched by the movement direction of the reversible belt conveyor 11. After the buffer chute 10 completes one loading, the sealing valve plate 4 of the sealing valve 3 opens according to the double-chamber kiln operation signal, and the raw limestone falls into the heat storage chamber of the double-chamber kiln, completing one feeding cycle.

[0022] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A material distribution device for a double-chamber kiln sealing valve of active lime, characterized in that, The system includes a feeding mechanism, a bidirectional conveying mechanism for conveying limestone material to the kiln mouth of the double-chamber kiln is provided at the outlet end of the feeding mechanism, and a material distribution mechanism for guiding limestone material to the kiln mouth is provided at the outlet end of the bidirectional conveying mechanism. The material distribution mechanism includes a material distributor (2) connected to the kiln mouth (1) of the double-chamber kiln, and a sealing valve (3) for receiving limestone material is provided above the material distributor (2). The lower part of the sealing valve (3) is connected to the kiln mouth (1) of the double-chamber kiln, and a sealing valve plate (4) is provided on the upper part of the sealing valve (3). The end of the sealing valve plate (4) is rotatably engaged with the valve body (5) of the sealing valve. A drive assembly for driving the sealing valve plate (4) to rotate and open and close is provided on the lower surface of the sealing valve plate (4). A sealing surface that cooperates with the upper surface of the sealing valve plate (4) is provided on the valve body (5) of the sealing valve (3). When the sealing valve (3) is closed, the upper surface of the sealing valve plate (4) abuts against the sealing surface to seal.

2. The material distribution device for a double-chamber kiln sealing valve of active lime according to claim 1, characterized in that, The drive assembly includes a hydraulic cylinder (6) and a connecting plate (7) hinged to the drive end of the hydraulic cylinder (6). The sealing valve plate (4) and the connecting plate (7) are connected by a rotating shaft (8). The hydraulic cylinder (6) is rotatably mounted on the valve body (5). A double linkage structure is formed by the hydraulic cylinder (6) and the connecting plate (7). The sealing valve plate (4) is opened and closed by the extension and retraction of the hydraulic cylinder (6).

3. A material distribution device for a double-chamber kiln sealing valve of active lime according to claim 1 or 2, characterized in that, The valve body (5) has a tapered guide groove (9) above the sealing surface, through which limestone material is guided into the valve body (5).

4. The material distribution device for a double-chamber kiln sealing valve of active lime according to claim 1, characterized in that, The sealing valve (3) is detachably connected to a buffer chute (10) for buffering limestone material. The limestone material received is temporarily stored in the buffer chute (10) to maintain the material supply to the corresponding double-chamber kiln opening.

5. The material distribution device for a double-chamber kiln sealing valve of active lime according to claim 4, characterized in that, The upper part of the buffer chute (10) is a cylindrical structure, and the lower part is a tapered structure that gradually transitions from the lower end of the cylinder to the feed inlet of the sealing valve.

6. The material distribution device for a double-chamber kiln sealing valve of active lime according to claim 4, characterized in that, The bidirectional conveying mechanism is a reversible belt conveyor (11), with discharge housings (12) connected to the corresponding buffer chutes (10) at both ends of the reversible belt conveyor (11).

7. The material distribution device for a double-chamber kiln sealing valve of active lime according to claim 1, characterized in that, The feeding mechanism includes a weighing hopper (13) and a vibrating feeder (14) located below the weighing hopper (13). The vibrating feeder (14) conveys the material in the weighing hopper (13) to the bidirectional conveying mechanism.

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