Fixed tooth groove liquid level type coke oven single carbonization chamber raw gas pressure adjusting device

Abstract

The utility model provides a fixed tooth groove liquid level type coke oven single carbonization chamber raw gas pressure adjusting device which comprises a valve body and a valve plate, the valve body is of a cylindrical structure, the valve plate is of a tray type structure, the lower end of the valve body is connected with an inner cylinder in a sealed mode, a plurality of open holes are formed in the cylinder wall of the lower end of the inner cylinder, the side wall of the valve plate is connected with the lower end of the valve body, and an opening of the tray type structure is upward. When the bottom face of the valve plate swings to the horizontal position, the lower end of the inner cylinder can be located in the disc type structure of the valve plate, and the height of the top end of the opening is smaller than that of the disc opening edge of the valve plate. The pressure regulating device is used as a water-sealed valve for regulating the pressure of raw gas in a coke oven carbonization chamber, and can effectively control the discharge of liquid and regulate the pressure of the raw gas through the design of a tooth groove structure. The device can effectively control the pressure while rapidly reducing the pressure of the raw gas, and can solve the problem that the pressure regulation amplitude of the existing device is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of raw gas pressure regulating devices, in particular to a fixed tooth groove liquid level type raw gas pressure regulating device for a single carbonization chamber of a coke oven. Background Art

[0002] A coke oven is a furnace typically constructed of refractory bricks and refractory blocks, primarily used to char coal to produce coke. A coke oven consists of the furnace body (including the carbonization chamber, combustion chamber, regenerator, chute area, and furnace roof) and ancillary equipment, connected by flues and chimneys. The entire coke oven is built on a concrete foundation. The coke oven is the primary thermal equipment used in coking, heating coal to coke within the airtight carbonization chamber. Modern coke ovens come in various types, such as double-pass and two-pass, depending on the structure of the heating system. Coke oven gas can also be used to produce methanol, fertilizers, generate electricity, produce hydrogen, and produce direct reduced iron, achieving comprehensive resource utilization. Coke ovens play a vital role in the steel, metallurgy, and coal chemical industries, serving as the primary equipment for producing coke and recovering coking chemicals.

[0003] Coke oven single carbonization chamber pressure regulation technology is a key technology in the coking process, designed to achieve stable, efficient, and environmentally friendly coke oven production. The primary purpose of this technology is to precisely control the pressure within the carbonization chamber, ensuring efficient extraction of raw gas while preventing environmental pollution and damage to the coke oven. This technology stabilizes the carbonization chamber pressure, improving coke oven production efficiency and reducing environmental pollution. Numerous research results have been achieved in this area, and it has been widely adopted and applied in practical applications.

[0004] Water seal valve devices are often used to regulate the pressure of a single carbonization chamber in a coke oven, but current devices often have the problem of limited adjustment range. Utility Model Content

[0005] Purpose of the utility model: In order to solve the defects of the prior art, the utility model provides a fixed tooth groove liquid level type coke oven single carbonization chamber raw gas pressure regulating device.

[0006] Technical solution: In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solution:

[0007] A fixed tooth groove liquid level type coke oven single carbonization chamber raw gas pressure regulating device, comprising a valve body and a valve plate; the valve body is a cylindrical structure, the valve plate is a tray structure, the lower end of the valve body is sealed and connected to an inner cylinder (the two are sealed so that liquid and gas coming down from above the valve body can only flow downward through the inner cylinder), the lower end cylinder wall of the inner cylinder is provided with a plurality of openings, the side wall of the valve plate is connected to the lower end of the valve body, and its disc structure opens upward, and the valve plate can swing up and down with the connection between the valve plate and the valve body as the rotation axis. When the bottom surface of the valve plate swings to a horizontal position, the lower end of the inner cylinder can be located in the disc structure of the valve plate, and the height of the top of the opening is less than the height of the edge of the valve plate disc.

[0008] As a specific implementation scheme, the pressure regulating device also includes a rotating shaft, the lower end of the valve body is connected to the rotating shaft, the disc structure of the valve plate opens upward, and its side wall is installed on the rotating shaft. The valve plate can swing up and down with the rotating shaft as the rotation axis.

[0009] Furthermore, the valve plate and the rotating shaft are both located inside the lower end of the valve body, and a hole is opened on one side of the lower end of the valve body for installing the rotating shaft.

[0010] As a specific implementation scheme, the inner cylinder is located inside the lower end of the valve body and is connected to the inner wall of the valve body through a connecting portion.

[0011] As a specific implementation scheme, the opening is a strip-shaped opening with uniform width at the top and bottom, or a strip-shaped opening with a width gradually increasing from top to bottom; the width gradually increasing from top to bottom means that the width can change in a gradient, and each gradient can adopt a trapezoidal structure with inclined sides (trapezoidal vertical strip-shaped opening), or a rectangular structure with uniform vertical width on the sides (step-shaped vertical strip-shaped opening), or the width can change irregularly, or the entire opening can be in the shape of a thin inverted V, etc., as long as the purpose of gradually increasing width from top to bottom can be achieved.

[0012] As a specific implementation scheme, the openings are evenly distributed on the lower end wall of the inner cylinder.

[0013] As a specific implementation, the bottom of the opening is flush with the bottom of the inner cylinder.

[0014] As a specific implementation scheme, the bottom of the valve body is a horizontal end seat type.

[0015] Beneficial Effects: Compared to existing technologies, the pressure regulating device of this utility model, which serves as a water seal valve for regulating the raw gas pressure in the coking chamber of a coke oven, effectively controls liquid discharge and regulates the raw gas pressure through its tooth-groove structure. This device rapidly reduces the raw gas pressure while also effectively controlling the pressure, resolving the problem of limited pressure regulation in existing devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic structural diagram of the pressure regulating device of the present invention (the bottom surface of the valve plate is located at the highest horizontal position).

[0017] Figure 2 This is a diagram of the state in which the liquid level of the pressure regulating device of the utility model is flush with the top of the opening.

[0018] Figure 3 This is a state diagram of the liquid level of the pressure regulating device of the utility model at a certain position within the opening height.

[0019] Figure 4 This is a diagram of the state where the valve plate of the pressure regulating device of the utility model is fully opened. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] Example 1

[0023] A fixed tooth groove liquid level type coke oven single carbonization chamber raw gas pressure regulating device, such as Figure 1 As shown, it includes a valve body 1, a valve plate 2 and a rotating shaft 3;

[0024] The valve body 1 is a sleeve-type structure with a horizontal end-seat bottom. The lower end of the valve body 1 is sealed with an inner cylinder 101, whose outer diameter is smaller than the inner diameter of the valve body 1. (The term "sealed connection" refers to a design that can be integrated or two sealed structures, allowing liquid and gas flowing down from the valve body to flow downward only through the inner cylinder.) The inner cylinder 101 is connected to the inner wall of the valve body 1 via a connection 102. The lower end of the inner cylinder 101 is provided with several openings 1011. One side of the lower end of the valve body 1 has an opening for mounting the rotating shaft 3. Both the valve body 1 and the inner cylinder 101 are cylindrical structures with openings at the top and bottom.

[0025] More specifically, the openings 1011 are evenly distributed on the lower end wall of the inner cylinder 101, and their bottoms are flush with the bottom of the inner cylinder 101; the openings 1011 are strip-shaped openings with uniform width at the top and bottom, or strip-shaped openings with width gradually increasing from top to bottom; the width gradually increases from top to bottom, which means that the width can change in a gradient, and each gradient can adopt a trapezoidal structure with inclined sides (trapezoidal vertical strip-shaped openings), or a rectangular structure with uniform vertical width on the sides (step-shaped vertical strip-shaped openings), or the width can change irregularly, or the entire opening can be in the shape of a thin inverted V, etc., as long as the purpose of gradually increasing width from top to bottom can be achieved.

[0026] The valve plate 2 is a tray-type structure, the disc structure of which opens upward, and the side wall is installed on the rotating shaft 3. The valve plate 2 is located as a whole inside the lower end of the valve body 1, and can swing up and down with the rotating shaft 3 as the rotation axis. When the bottom surface of the valve plate 2 swings to a horizontal position, the lower end of the inner cylinder 101 can be located in the disc structure of the valve plate 2, and the height of the top of the opening 1011 is less than the height of the edge of the disc of the valve plate 2.

[0027] The working process and principle of the above pressure regulating device are as follows:

[0028] 1: Initial position, there is no raw gas in the carbonization chamber, and the valve plate 2 is in the liquid seal position. Figure 1 In the state, the valve plate 2 rotates to the highest position, the tray is full of liquid level, and the flow area of ​​the raw gas is zero (the raw gas can only flow downward through the inner tube 101). The liquid seal isolates the passage between the carbonization chamber and the external raw gas collecting pipe.

[0029] 2: Raw gas begins to be produced in the carbonization chamber and has a certain flow rate, such as Figure 2 In this state, the valve plate 2 rotates clockwise. After rotating a certain angle, the amount of liquid in the tray of the valve plate 2 decreases. The valve plate 2 rotates to the highest state of the liquid level in the tray before the start of adjustment, that is, the liquid level position is on the same horizontal line as the vertex position of the tooth groove (opening 1011) of the inner cylinder 101.

[0030] 3: With the increase of raw gas production in the carbonization room, Figure 3 In the state, the valve plate 2 continues to rotate clockwise, and the liquid level reaches a certain position within the tooth groove height range, and the flow area of ​​the raw gas between the teeth grooves increases.

[0031] 4: When the raw gas output in the carbonization chamber reaches the maximum, Figure 4 The valve plate 2 rotates until there is no ammonia in the tray. At this time, the flow area of ​​the raw gas reaches its maximum value, reducing the raw gas pressure in the carbonization chamber. This state continues until the end of coking.

[0032] 5: When the coking period is reached, the raw gas output in the carbonization chamber continues to decrease, and the valve plate returns to state 3, 2, and 1 in sequence from state 4. After completing a coking cycle, the carbonization chamber begins to discharge coke.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixed tooth-slot liquid level type coke oven single carbonization chamber raw gas pressure regulating device, characterized in that: The utility model comprises a valve body (1) and a valve plate (2); the valve body (1) is a cylindrical structure, the valve plate (2) is a tray structure, the lower end of the valve body (1) is sealedly connected to the inner cylinder (101), the lower end cylinder wall of the inner cylinder (101) is provided with a plurality of openings (1011), the side wall of the valve plate (2) is connected to the lower end of the valve body (1), and the disc structure thereof opens upward, the valve plate (2) can swing up and down with the connection part between the valve plate (2) and the valve body (1) as the rotation axis, and when the bottom surface of the valve plate (2) swings to a horizontal position, the lower end of the inner cylinder (101) can be located in the disc structure of the valve plate (2), and the height of the top of the opening (1011) is less than the height of the disc edge of the valve plate (2).

2. The fixed tooth-slot liquid-level coke oven single carbonization chamber raw gas pressure regulating device according to claim 1, characterized in that: The pressure regulating device further comprises a rotating shaft (3), the lower end of the valve body (1) is connected to the rotating shaft (3), the disc-shaped structure of the valve plate (2) opens upward, and its side wall is mounted on the rotating shaft (3), and the valve plate (2) can swing up and down with the rotating shaft (3) as the rotation axis.

3. The fixed tooth-slot liquid-level coke oven single carbonization chamber raw gas pressure regulating device according to claim 2, characterized in that: The valve plate (2) and the rotating shaft (3) are both located inside the lower end of the valve body (1), and a hole is opened on one side of the lower end of the valve body (1) for installing the rotating shaft (3).

4. The fixed tooth-slot liquid-level coke oven single carbonization chamber raw gas pressure regulating device according to claim 1, characterized in that: The inner cylinder (101) is located inside the lower end of the valve body (1) and is connected to the inner wall of the valve body (1) via a connecting portion (102).

5. The fixed tooth-slot liquid-level coke oven single carbonization chamber raw gas pressure regulating device according to claim 1, characterized in that: The opening (1011) is a strip-shaped opening with the same width at the top and bottom, or a strip-shaped opening with a width that gradually increases from top to bottom.

6. The fixed tooth groove liquid level type coke oven single carbonization chamber raw gas pressure regulating device according to claim 1, characterized in that: The openings (1011) are evenly distributed on the lower end wall of the inner cylinder (101).

7. The fixed tooth-slot liquid-level coke oven single carbonization chamber raw gas pressure regulating device according to claim 1, characterized in that: The bottom of the opening (1011) is flush with the bottom of the inner cylinder (101).

8. The fixed tooth-slot liquid-level coke oven single carbonization chamber raw gas pressure regulating device according to claim 1, characterized in that: The bottom of the valve body (1) is a horizontal end surface seat type.

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