Gas-material linkage feed valve for industrial furnace

Abstract

The utility model relates to the technical field of furnace valve body devices, in particular to a gas and material linkage feeding valve for an industrial furnace. Comprising a valve body, the valve body is sequentially provided with a first channel, a second channel and a third channel, the first channel and the second channel are distributed on the left side of the valve body, the axes of the first channel and the second channel are perpendicular to each other, a valve assembly used for controlling opening and closing of the first channel and the second channel is arranged behind the valve body, and a control valve is arranged at the third channel. A blanking opening is formed in the lower part of the right side of the valve body; the air inlet, the air outlet and the feeding port are integrated in the valve body, the size specification of the whole device is greatly reduced, the occupied space area is reduced, meanwhile, a closed structure is formed by the whole device and a kiln body after the whole device is installed, and the dust raising condition is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of furnace valve body devices, and in particular to a gas-material linkage feeding valve for industrial furnaces. Background Technology

[0002] Currently, the main kiln equipment used in China for calcining lime in the metallurgical, chemical, and building materials industries includes industrial kilns such as double-chamber lime kilns, double-beam lime kilns, sleeve lime kilns, and mixing-type mechanical vertical kilns. In these kilns, flue gas emission (air intake) and limestone charging are handled by different devices. However, this model has many drawbacks: on the one hand, the devices occupy a large space, resulting in high equipment manufacturing costs, and also increasing the overall height of the kiln equipment, thus raising the investment costs for related steel structures; on the other hand, dust problems are serious during gas circulation and charging, which greatly restricts the development of large-scale lime vertical kilns towards environmental protection, energy conservation, and intelligence, and is not conducive to actual production in enterprises. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a gas-material linkage feeding valve for industrial furnaces and kilns, which integrates the air inlet, exhaust outlet and feed inlet inside the valve body, greatly reducing the size of the overall equipment and the space occupied. At the same time, after the whole installation, it forms a closed structure with the kiln body, avoiding dust generation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model includes:

[0005] The valve body has a first channel, a second channel and a third channel arranged in sequence. The first channel and the second channel are located on the left side of the valve body and their axes are perpendicular to each other. A valve assembly for controlling the opening and closing of the first channel and the second channel is provided at the rear of the valve body. A control valve is provided at the third channel. A material discharge port is provided at the lower right side of the valve body.

[0006] Preferably, the valve assembly includes a first shaft and a first hydraulic cylinder; the first shaft is installed at the upper left corner of the valve body, and a closing plate is provided on the first shaft, and a swing arm is provided at the end; one end of the first hydraulic cylinder is connected to the swing arm, and the other end is connected to the upper right corner of the valve body.

[0007] Preferably, pressure plates are symmetrically arranged on both sides of the closed plate.

[0008] Preferably, the pressure plate is provided with a first sealing element.

[0009] Preferably, the control valve includes a second shaft and a second hydraulic cylinder; the second shaft is installed at the upper right position of the valve body, and a sealing disc is provided on the second shaft, and a connecting arm is provided at the end; the two ends of the second hydraulic cylinder are respectively connected to the connecting arm and the valve body.

[0010] Preferably, the sealing disc is provided with a second sealing element.

[0011] Preferably, a baffle is provided in the valve body on the left side of the material discharge port.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. By integrating the intake and exhaust channels and the feed channel onto the valve body, the number of installations required by traditional devices is reduced, resulting in a compact structure, small space occupation, and avoiding investment costs for related steel structure parts, thereby reducing installation and usage costs.

[0014] 2. The overall structure is integrated and designed to form a relatively closed space environment after installation with the kiln body. During the feeding and exhaust processes, it will not interact with the external environment, thus avoiding dust generation.

[0015] 3. Adjusting the position of the valve assembly allows for quick switching of channels to complete air intake or exhaust operations with rapid response. The control valve controls the feed channel, and through cooperation with the valve assembly, the two work together to complete the overall operation with strong stability. Attached Figure Description

[0016] Figure 1 A front view of the overall structure of a gas-material linkage feed valve for industrial furnaces;

[0017] Figure 2 Left view of the overall structure;

[0018] Figure 3 This is a top view of the overall structure;

[0019] Figure 4 This is a sectional view at point BB;

[0020] Figure 5 This is a schematic diagram of the interior of the material discharge port;

[0021] Figure 6 A partial schematic diagram of CC and X;

[0022] Figure 7 A partial schematic diagram of E and Y;

[0023] Figure 8 A partial schematic diagram of F and G;

[0024] Figure 9This is a schematic diagram of the movement of the first and second hydraulic cylinders.

[0025] In the diagram: 1. Valve body; 2. First channel; 3. Second channel; 4. Third channel; 5. Valve assembly; 6. Control valve; 101. Material discharge port; 102. Baffle; 501. First shaft; 502. First hydraulic cylinder; 503. Closing plate; 504. Swing arm; 505. Pressure plate; 506. First seal; 601. Second shaft; 602. Second hydraulic cylinder; 603. Sealing disc; 604. Connecting arm; 605. Second seal. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] Specific implementation method one: Combining Figure 1-9 As shown, a gas-material linkage feeding valve for industrial furnaces includes: a valve body 1, on which a first channel 2 is located on the left side and a second channel 3 is located in the upper middle part, with the channel axes of the two channels arranged perpendicular to each other; a third channel 4 is located on the right side of the valve body 1 and is arranged at an angle, which facilitates connection with the feeding pipeline; a valve assembly 5 for controlling the opening and closing of the first channel 2 and the second channel 3 is provided at the rear of the valve body 1, and the two channels can be switched by rotation; at the same time, a control valve 6 is provided at the third channel 4 for controlling the feeding of the feeding pipeline; a discharge port 101 is provided at the lower right side of the valve body 1, which is close to the third channel 4 and is staggered with the second channel 3 to avoid affecting the exhaust operation during the feeding process.

[0028] Preferred embodiments, in combination Figure 1-5 As shown, the valve assembly 5 includes a first shaft 501 and a first hydraulic cylinder 502. The first shaft 501 is installed at the upper left corner of the valve body 1, and its two ends are connected to the valve body 1 through bearings. At the same time, a closing plate 503 is installed in the middle of the first shaft 501. The closing plate 503 is located inside the valve body 1, and a swing arm 504 is provided at the rear end of the first shaft 501. One end of the first hydraulic cylinder 502 is connected to the swing arm 504 by a rotating shaft, and the other end is connected to the upper right corner of the valve body 1 by a rotating shaft. The first hydraulic cylinder 502 drives the first shaft 501 to rotate, which can drive the closing plate 503 to rotate inside the valve body 1. By contacting the first channel 2 and the second channel 3 respectively, the closing operation is completed. The contact part of the closing plate 503 can be a disc-shaped structure, and the two sides contact the first channel 2 or the second channel 3 respectively to achieve the control function.

[0029] Preferred embodiments, in combination Figure 1 , Figure 4 and Figure 7 As shown, pressure plates 505 are symmetrically arranged on both sides of the closing plate 503. The pressure plates 505 are generally disc-shaped, and the diameters of the pressure plates 505 on both sides are adapted to the diameters of the holes in the first channel 2 and the second channel 3, respectively. In actual products, the diameter of the second channel 3 is mostly larger than the diameter of the first channel 2. However, the diameters of the two channels can be adjusted according to design requirements, such as when the two diameters are equal. Therefore, the size of the pressure plates 505 on both sides can be adjusted according to the actual design. The pressure plates 404 and the closing plate 402 can be connected by screws for easy installation and replacement. The closing plate 503 itself can be processed into a bracket to provide the installation position of the pressure plates 505, thereby reducing weight and manufacturing materials and facilitating design and processing.

[0030] Preferred embodiments, in combination Figure 7 As shown, both pressure plates 505 are provided with a first sealing element 506, which improves the sealing performance after contacting the first channel or the second channel.

[0031] Preferred embodiments, in combination Figure 1-3 , Figure 7 As shown, the control valve 6 includes a second shaft 601 and a second hydraulic cylinder 602. The second shaft 601 is installed at the upper right position of the valve body 1, and both ends are supported by bearings to connect with the valve body 1. A sealing disc 603 is provided in the middle of the second shaft 601. The contact position between the sealing disc 603 and the third channel 4 is circular. A connecting arm 604 is provided at the end of the second shaft 601. The two ends of the second hydraulic cylinder 602 are connected to the connecting arm 604 and the rotating shaft of the valve body 1, respectively. The second hydraulic cylinder 602 drives the connecting arm 604 to rotate, so as to realize the contact or separation between the sealing disc 603 and the third channel 4, and complete the closing or opening action.

[0032] Preferred embodiments, in combination Figure 7 As shown, the closed disc 603 is provided with a second sealing element 605, which improves the sealing performance after contacting the third channel 4. Both the first sealing element 506 and the second sealing element 605 are made of wear-resistant and high-temperature resistant silicone rubber sealing rings.

[0033] Preferred embodiments, in combination Figure 5 As shown, a baffle 102 is provided inside the valve body 1 on the left side of the material inlet 101. The baffle 102 has a triangular cross-sectional shape and can be hollow inside. During the feeding process, it can prevent material from accumulating in the middle area of ​​the valve body 1.

[0034] Regarding the power components of control valve 6 and valve assembly 5, an electric motor combined with gear transmission could be considered, or an electric push rod, hydraulic pump, etc., could be used to replace the connecting arm 604 and hydraulic cylinder.

[0035] For ease of understanding, an additional diagram is provided, in which CC is the connection structure between the second hydraulic cylinder 602 and the connecting arm 604, X is the connection diagram at the bottom of the second hydraulic cylinder 602, E is a partial view of the pressure plate 505 on one side, Y is a partial structural diagram of the closed disc 603, and F and G are structural diagrams at both ends of the first hydraulic cylinder 502, respectively.

[0036] Working principle: The entire device is installed at the top of the kiln body, connecting the material inlet 101 to the kiln body. The first channel 2 is connected to the air inlet pipe, the second channel 3 to the exhaust pipe, and the third channel 4 to the feed pipe. During kiln operation, the sealing disc and the third channel 4 are closed, while the pressure plate 505 is located at the second channel 3, sealing it and ensuring a continuous supply of oxygen to the kiln body from the first channel 2. When feeding is required, the second hydraulic cylinder 602 rotates the sealing disc 603 to open the third channel 4. Simultaneously, the first hydraulic cylinder 502 rotates the pressure plate 505 clockwise to close the first channel 2. Thus, during feeding, exhaust is completed through the second channel 3. The overall structure is compact, reducing the number of devices and space requirements compared to traditional multi-device collaboration. It also offers rapid response, stable operation, and eliminates the need for complex steel structures to support the entire device, reducing installation costs and enhancing enterprise competitiveness.

[0037] Integrating two functions within a limited space without affecting their respective performance, and ensuring reliable sealing during rapid switching, highlights the coordinated control logic of material loading / unloading and gas reversal. Through the above optimizations, the feed valve can achieve efficient and reliable gas reversal and material loading / unloading in high-temperature and corrosive environments, significantly improving the energy efficiency and production efficiency of industrial furnaces and kilns, while reducing maintenance costs. It can be applied to industrial furnaces and kilns such as double-chamber lime kilns, double-beam lime kilns, sleeve lime kilns, and mixing-type mechanical vertical kilns, replacing the original gas flow valves and material loading / unloading devices. Through the integrated and innovative structure, the installation space of the device is significantly reduced, and the equipment investment cost is lowered. It can not only effectively avoid dust pollution to the environment, but also further improve the working environment.

[0038] The device offers precise and rapid response, and the movable joints can be equipped with self-lubricating structures to greatly improve stability. Its modular design facilitates maintenance, and its cost balances initial investment with long-term benefits.

[0039] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A gas-material linkage feeding valve for industrial furnaces, characterized in that... ,include: A valve body (1) is provided with a first channel (2), a second channel (3) and a third channel (4) in sequence. The first channel (2) and the second channel (3) are distributed on the left side of the valve body (1) and their axes are arranged perpendicular to each other. A valve assembly (5) for controlling the opening and closing of the first channel (2) and the second channel (3) is provided at the rear of the valve body (1). A control valve (6) is provided at the third channel (4). A material discharge port (101) is provided at the lower right side of the valve body (1).

2. The gas-material linkage feed valve for industrial furnaces and kilns according to claim 1, characterized in that: The valve assembly (5) includes a first shaft (501) and a first hydraulic cylinder (502); the first shaft (501) is installed at the upper left corner of the valve body (1), and a closing plate (503) is provided on the first shaft (501), and a swing arm (504) is provided at the end; one end of the first hydraulic cylinder (502) is connected to the swing arm (504), and the other end is connected to the upper right corner of the valve body (1).

3. A gas-material linkage feed valve for industrial furnaces according to claim 2, characterized in that: Pressure plates (505) are symmetrically arranged on both sides of the closed plate (503).

4. A gas-material linkage feed valve for industrial furnaces according to claim 3, characterized in that: The pressure plate (505) is provided with a first sealing element (506).

5. A gas-material linkage feed valve for industrial furnaces according to claim 1, characterized in that: The control valve (6) includes a second shaft (601) and a second hydraulic cylinder (602); the second shaft (601) is installed at the upper right position of the valve body (1), and a closed disc (603) is provided on the second shaft (601), and a connecting arm (604) is provided at the end; the two ends of the second hydraulic cylinder (602) are respectively connected to the connecting arm (604) and the valve body (1).

6. A gas-material linkage feed valve for industrial furnaces according to claim 5, characterized in that: The sealing disc (603) is provided with a second sealing element (605).

7. A gas-material linkage feed valve for industrial furnaces according to claim 1, characterized in that: A baffle (102) is provided inside the valve body (1) on the left side of the discharge port (101).

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