Waste gas shutter for coke oven

Abstract

The utility model belongs to the field of coke oven waste gas opening and closing devices, and discloses a waste gas opening and closing device for a coke oven, which comprises a main body device for discharging and feeding flue gas, and a control device which is arranged on the main body device and is used for coaxially rotating and winding to control the feeding and discharging of the flue gas, the rear end of the control device is provided with an opening and closing device which is used for controlling two-side air inlet in a coaxial anti-side winding mode and can conduct sliding clutch switching control on the number. The control device comprises a supporting frame, a rotating shaft is installed on the top of the supporting frame, and a first winding disc is installed at the front end of the rotating shaft. According to the waste gas opening and closing device for the coke oven disclosed by the utility model, gas inlet and smoke exhaust are controlled through coaxial rotating and winding, and smoke exhaust and gas inlet can be switched through one-step operation, so that the operation is simplified; through the arrangement of coaxial anti-side winding, the air doors on the two sides are synchronously controlled; and through the arrangement of the sliding clutch switching control number, control over a single air inlet is achieved, and different air inlet requirements are met.

Description

Technical Field

[0001] The utility model belongs to the field of coke oven waste gas switch, in particular to a coke oven waste gas switch. Background Art

[0002] The coke oven exhaust gas switch is an important component of the coke oven equipment. It is located between the small flue and the branch flue of the coke oven. Its main function is to control the flow direction and flow of the flue gas to ensure the normal operation and heating effect of the coke oven. The exhaust gas switch realizes the regulation of the flue gas by accurately controlling the opening and closing of the valve. During the coke oven heating process, according to the process requirements and changes in furnace conditions, the exhaust gas switch can adjust the amount of air entering the small flue to control the combustion speed and temperature distribution in the coke oven. At the same time, it can also control the amount of exhaust gas discharged to meet environmental protection requirements and production needs. In summary, the coke oven exhaust gas switch plays a key role in the coke oven production process. By accurately controlling the flow direction and flow of the flue gas, it provides a strong guarantee for the normal operation and efficient production of the coke oven.

[0003] In comparison, a Chinese patent with authorization announcement number CN220393609U discloses a waste gas shutter for a reheating coke oven, including a shutter valve body, a waste gas weight, a conversion and adjustment channel, a gas small flue connecting pipe, an air small flue connecting pipe and a lean gas pipe; the conversion and adjustment channel is composed of channel one, channel two, a large air door, a small air door, an adjustment plate one and an adjustment plate two; channel one and channel two are arranged side by side and tilted to form the main body of the conversion and adjustment channel, the upper end opening of channel one is connected to the air small flue connecting pipe, and a large air door is provided on the top of channel one; the upper end opening of channel two is connected to the gas small flue connecting pipe, and a small air door is provided on the top of channel two.

[0004] The above patent requires that the opening and closing of the air inlet and the exhaust port be controlled separately when controlling the air intake and smoke exhaust, which is cumbersome to operate. Therefore, a new device needs to be designed. Utility Model Content

[0005] The utility model aims to provide a waste gas switch for a coke oven to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A coke oven exhaust gas switch, comprising a main body device for flue gas emission and air intake, and a control device installed on the main body device for coaxially rotating winding to control air intake and flue gas emission, and an opening and closing device for coaxially rotating opposite sides to control air intake on both sides and capable of sliding clutch switching to control quantity is installed at the rear end of the control device;

[0008] The control device comprises a support frame, a rotating shaft is installed on the top of the support frame, a first winding disk is installed at the front end of the rotating shaft, a first pull rope is arranged on the first winding disk, and a switching gear is slidably installed at the rear end of the rotating shaft;

[0009] The opening and closing device comprises a rotating frame, on which a first transmission wheel and a second transmission wheel are symmetrically mounted front and back, and second winding discs are arranged on opposite sides of the first transmission wheel and the second transmission wheel, and a second pull rope is mounted on the second winding disc.

[0010] Furthermore: the main device includes a shell, a smoke exhaust pipe is arranged under the shell, an exhaust gas weight is arranged above the smoke exhaust pipe, a weight rod is installed on the exhaust gas weight, two flue connecting pipes are symmetrically arranged on both sides of the rear of the shell, and dampers are installed on the flue connecting pipes.

[0011] Furthermore: a shifting rod is arranged in front of the switching gear, and two limiting rings are symmetrically arranged on the front and rear sides of the switching gear.

[0012] Furthermore: two supporting rollers are symmetrically arranged on both sides of the rotating frame.

[0013] Furthermore: the first transmission wheel and the second transmission wheel are both rotatably connected to the rotating frame.

[0014] Furthermore: the exhaust gas weight is made of HT200 material, and the weight rod is slidably connected to the shell.

[0015] Compared with the prior art, the beneficial effects are:

[0016] 1. The air intake and exhaust settings are controlled by coaxial rotation winding. The exhaust and air intake can be switched in one step, which simplifies the operation;

[0017] 2. Through the setting of coaxial reverse winding, the dampers on both sides are synchronously controlled;

[0018] 3. By setting the number of sliding clutch switches, the control of a single air inlet is achieved to meet different air intake requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a coke oven exhaust gas switch and shutter according to the utility model;

[0020] Figure 2 It is a right sectional view of the main device of a coke oven exhaust gas switch according to the utility model;

[0021] Figure 3 It is a right view of a control device of a coke oven exhaust gas switch according to the utility model;

[0022] Figure 4 The utility model is an axonometric diagram of an opening and closing device of a waste gas switch for a coke oven.

[0023] In the accompanying drawings, 101, shell; 102, smoke exhaust pipe; 103, exhaust gas weight; 104, weight rod; 105, flue connecting pipe; 106, damper; 201, support frame; 202, rotating shaft; 203, first winding disk; 204, first pull rope; 205, lever; 206, switching gear; 207, limiting ring; 301, rotating frame; 302, first transmission wheel; 303, second transmission wheel; 304, second winding disk; 305, support roller; 306, second pull rope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 A waste gas switch for a coke oven includes a main device for smoke emission and air intake, and also includes a control device installed on the main device for coaxial rotation and winding to control air intake and smoke exhaust. The rear end of the control device is installed with an opening and closing device for coaxial reverse side winding to control air intake on both sides and capable of sliding clutch switching to control the number.

[0026] In this embodiment: the main device includes a shell 101, a smoke exhaust pipe 102 is arranged below the shell 101, an exhaust gas weight 103 is arranged above the smoke exhaust pipe 102, a weight rod 104 is installed on the exhaust gas weight 103, two flue connecting pipes 105 are symmetrically arranged on both sides of the rear of the shell 101, and a damper 106 is installed on the flue connecting pipe 105. The exhaust gas weight 103 is made of HT200 material, and the weight rod 104 is slidably connected to the shell 101. When exhausting smoke, the smoke enters the shell 101 through the two flue connecting pipes 105 and is discharged through the smoke exhaust pipe 102. When air intake is required, the weight rod 104 drives the exhaust gas weight 103 to descend, closes the smoke exhaust pipe 102, and opens the dampers 106 on both sides at the same time;

[0027] In this embodiment: the control device includes a support frame 201, a rotating shaft 202 is installed on the top of the support frame 201, a first winding disc 203 is installed at the front end of the rotating shaft 202, a first pull rope 204 is arranged on the first winding disc 203, a switching gear 206 is slidably installed at the rear end of the rotating shaft 202, a lever 205 is arranged in front of the switching gear 206, and two limit rings 207 are symmetrically arranged on the front and rear sides of the switching gear 206. The rotating shaft 202 drives the first winding disc 203 and the switching gear 206 to rotate under the support of the support frame 201 through the lever 205, and the first winding disc 203 drives the weight rod 104 to drive the exhaust weight 103 to rise and fall by unwinding the first pull rope 204, thereby controlling the opening and closing of the smoke exhaust pipe 102;

[0028] In this embodiment, the opening and closing device includes a rotating frame 301, on which a first transmission wheel 302 and a second transmission wheel 303 are symmetrically installed front and back, and a second winding disk 304 is arranged on the opposite sides of the first transmission wheel 302 and the second transmission wheel 303, and a second pull rope 306 is installed on the second winding disk 304, and two support rollers 305 are symmetrically arranged on both sides of the rotating frame 301, and the first transmission wheel 302 and the second transmission wheel 303 are both rotatably connected to the rotating frame 301, and the switching gear 206 engages with the first transmission wheel 302 and the second transmission wheel 303 to rotate under the support of the rotating frame 301, and the second winding disk 304 reels the second pull rope 306, and under the support of the support roller 305, pulls the air doors 106 on both sides to open upward to control the air intake; when it is necessary to control one air door 106 separately, the switching gear ring is made to slide along the rotating shaft 202 under the restriction of the limit ring 207, and disengages from the first transmission wheel 302 or the second transmission wheel 303, thereby realizing the control of a single air door 106.

[0029] Working principle: When exhausting smoke, smoke enters the housing 101 through the two smoke duct connecting pipes 105 and is discharged through the smoke exhaust pipe 102; when air intake is required, the lever 205 is used to drive the first winding disc 203 and the switching gear 206 to rotate under the support of the support frame 201, and the first winding disc 203 unwinds the first pull rope 204 to drive the exhaust weight 103 to descend, closing the smoke exhaust pipe 102, and at the same time the switching gear 206 engages the first transmission wheel 302 and the second transmission wheel 303 rotate under the support of the rotating frame 301, and the second winding disk 304 reels up the second pull rope 306, which pulls the dampers 106 on both sides upward to open under the support of the support roller 305, so as to realize coaxial control of air intake and smoke exhaust; when it is necessary to control one damper 106 separately, the switching gear ring slides along the rotating shaft 202 under the restriction of the limit ring 207, and disengages from the first transmission wheel 302 or the second transmission wheel 303, so as to realize the control of a single damper 106.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coke oven exhaust gas switch, comprising a main device for flue gas emission and air intake, characterized in that: It also includes a control device installed on the main device for coaxially rotating winding to control air intake and smoke exhaust, and an opening and closing device for coaxially rotating winding to control air intake on both sides and capable of sliding clutch switching to control quantity is installed at the rear end of the control device; The control device comprises a support frame (201), a rotating shaft (202) is installed on the top of the support frame (201), a first winding disk (203) is installed on the front end of the rotating shaft (202), a first pull rope (204) is arranged on the first winding disk (203), and a switching gear (206) is slidably installed on the rear end of the rotating shaft (202); The opening and closing device comprises a rotating frame (301), on which a first transmission wheel (302) and a second transmission wheel (303) are symmetrically mounted front and rear, and second winding discs (304) are arranged on opposite sides of the first transmission wheel (302) and the second transmission wheel (303), and a second pull rope (306) is mounted on the second winding disc (304).

2. The exhaust gas switch for a coke oven according to claim 1, characterized in that: The main device comprises a shell (101), a smoke exhaust pipe (102) is arranged below the shell (101), an exhaust gas weight (103) is arranged above the smoke exhaust pipe (102), a weight rod (104) is installed on the exhaust gas weight (103), two flue connecting pipes (105) are symmetrically arranged on both sides of the rear of the shell (101), and a damper (106) is installed on the flue connecting pipe (105).

3. The exhaust gas switch for a coke oven according to claim 1, characterized in that: A shifting rod (205) is arranged in front of the switching gear (206), and two limiting rings (207) are symmetrically arranged on the front and rear sides of the switching gear (206).

4. The exhaust gas switch for a coke oven according to claim 1, characterized in that: Two supporting rollers (305) are symmetrically arranged on both sides of the rotating frame (301).

5. The exhaust gas switch for a coke oven according to claim 1, characterized in that: The first transmission wheel (302) and the second transmission wheel (303) are both rotatably connected to the rotating frame (301).

6. The exhaust gas switch for a coke oven according to claim 2, characterized in that: The exhaust gas weight (103) is made of HT200 material, and the weight rod (104) is slidably connected to the shell (101).

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