CN-224230727-U - Energy-saving coke oven flue waste gas waste heat recovery mechanism

Abstract

The utility model discloses an energy-saving coke oven flue waste gas waste heat recovery mechanism, belonging to the field of waste heat recovery; the utility model comprises a tank body, wherein an air inlet pipe is fixedly arranged at the top of the tank body, a heat exchange tube is fixedly arranged in the tank body, a cleaning mechanism is fixedly arranged in the tank body, waste heat of gas in the heat exchange tube is absorbed by liquid in the tank body, in the absorption process, a rotating fan blade rotates to drive the liquid at the edge of the tank body to move towards the heat exchange tube at the same time, so that the temperature gradient difference in the tank body is reduced, the liquid flow in the tank body is promoted, the heat exchange efficiency is effectively improved, meanwhile, when the surface of the heat exchange tube is required to be cleaned, scale on the surface of the heat exchange tube is broken through high-frequency vibration, thereby realizing the rapid cleaning of the heat exchange tube, the recovery mechanism is not required to be disassembled in the process, the downtime is short, and meanwhile, the rotating fan blade rotates to break large blocks by utilizing the rotating fan blade, thereby facilitating the subsequent discharge and avoiding the blockage of a liquid discharge tube.

Inventors

• XUE YAN
• XING LEI
• LI CAN
• ZHU JING
• CAI YINGJIE

Assignees

• 临涣焦化股份有限公司

Dates

Publication Date

20260512

Application Date

20250526

Claims (6)

1. 1. The energy-saving coke oven flue waste gas waste heat recovery mechanism comprises a tank body (1) and is characterized in that an air inlet pipe (11) is fixedly arranged at the top of the tank body (1), a heat exchange pipe (12) is fixedly arranged in the tank body (1), and a cleaning mechanism (2) is fixedly arranged in the tank body (1); The cleaning mechanism (2) comprises an ultrasonic generator (21), rotating fan blades (22) and a liquid discharge pipe (23), wherein the ultrasonic generator (21) is positioned at one side of the heat exchange pipe (12), a plurality of ultrasonic generators (21) are arranged, and the ultrasonic generators (21) are uniformly distributed at intervals on the inner wall of the tank body (1); The rotary fan blades (22) are movably arranged in the tank body (1), the rotary fan blades (22) are positioned on two sides of the heat exchange tube (12), and the liquid discharge tube (23) is fixedly arranged at the bottom of the tank body (1).
2. 2. The energy-saving coke oven flue waste gas waste heat recovery mechanism according to claim 1, wherein motors are fixedly arranged on two sides of the tank body (1), a rotating block (24) is fixedly arranged at the output end of each motor, and a disturbing groove (25) is formed in one side of each rotating block (24).
3. 3. The energy-saving coke oven flue gas waste heat recovery mechanism according to claim 2, wherein the rotating fan blades (22) are fixedly arranged on the rotating block (24), the rotating fan blades (22) are provided with a plurality of rotating fan blades (22) which are uniformly distributed at intervals on the rotating block (24), and the rotating fan blades (22) are obliquely arranged with an inclination angle of 15-45 degrees.
4. 4. The energy-saving coke oven flue waste gas waste heat recovery mechanism according to claim 3, wherein a diversion trench (26) is formed in the bottom of the tank body (1), the liquid discharge pipe (23) is located at the center of the diversion trench (26), and the cross section of the diversion trench (26) is trapezoid.
5. 5. The energy-saving coke oven flue gas waste heat recovery mechanism according to claim 1, wherein a sealing plate (27) is movably mounted on one side of the tank body (1), one end of the sealing plate (27) is movably connected with the tank body (1) through a rotating shaft, and a locking rod (28) is fixedly mounted on one side, far away from the rotating shaft, of the tank body (1).
6. 6. The energy-saving coke oven flue gas waste heat recovery mechanism according to claim 5, wherein a connecting rod (29) is fixedly arranged on one side, far away from the rotating shaft, of the sealing plate (27), a locking block (30) is movably arranged on the connecting rod (29), a locking groove is formed in the locking block (30), the locking rod (28) is positioned in the locking groove, a connecting plate (31) is fixedly arranged on one side of the sealing plate (27), a spring is fixedly arranged at the bottom of the connecting plate (31), and one end of the spring is fixedly connected with the locking block (30).

Description

Energy-saving coke oven flue waste gas waste heat recovery mechanism Technical Field The utility model relates to the field of waste heat recovery, in particular to an energy-saving coke oven flue waste gas waste heat recovery mechanism. Background The waste gas and waste heat recovery mechanism of the coke oven flue refers to a device or a system for recycling waste gas and waste heat in the coke oven flue through a certain technical means, and the main purpose of the recovery process is to improve the energy utilization efficiency, reduce the energy consumption of enterprises, reduce the emission and meet the environmental protection requirement by reducing the temperature of waste gas and extracting the heat in the waste gas. However, in the prior art, the temperature of the liquid near the heat exchange tube is generally higher in the using process of the waste heat recovery mechanism, so that temperature difference, namely uneven heat conduction, is generated inside the recovery mechanism, and the heat exchange efficiency of the recovery mechanism is affected; the surface of the heat exchange tube is easy to form scale when the heat exchange tube is used for a long time, the heat exchange efficiency of the heat exchange tube gradually decreases along with the scale accumulation, and the heat exchange tube is required to be shut down to clean the heat exchange tube at the moment, and the heat exchange tube is usually positioned in the waste heat recovery mechanism, so that the heat exchange tube is very inconvenient to clean, the downtime is longer, and the normal use of the recovery mechanism is influenced; in view of the above technical drawbacks, a solution is now proposed. Disclosure of utility model The utility model aims to provide an energy-saving coke oven flue waste gas waste heat recovery mechanism, which aims to solve the technical defects of the background technology. The utility model aims at realizing the technical scheme that the energy-saving coke oven flue waste gas waste heat recovery mechanism comprises a tank body, wherein an air inlet pipe is fixedly arranged at the top of the tank body, a heat exchange pipe is fixedly arranged in the tank body, and a cleaning mechanism is fixedly arranged in the tank body; The cleaning mechanism comprises ultrasonic generators, rotating fan blades and a liquid discharge pipe, wherein the ultrasonic generators are positioned on one side of the heat exchange pipe, a plurality of ultrasonic generators are arranged, and the ultrasonic generators are uniformly distributed at intervals on the inner wall of the tank body; The rotating fan blades are movably arranged in the tank body, the rotating fan blades are positioned on two sides of the heat exchange tube, and the liquid discharge tube is fixedly arranged at the bottom of the tank body. Preferably, motors are fixedly arranged on two sides of the tank body, a rotating block is fixedly arranged at the output end of the motor, and a flow disturbing groove is formed in one side of the rotating block. Preferably, the rotating fan blades are fixedly arranged on the rotating block, a plurality of rotating fan blades are arranged on the rotating block at equal intervals, and the rotating fan blades are obliquely arranged, and the inclination angle is 15-45 degrees. Preferably, the bottom of the tank body is provided with a diversion trench, the liquid discharge pipe is positioned at the center of the diversion trench, and the cross section of the diversion trench is trapezoidal. Preferably, a sealing plate is movably arranged on one side of the tank body, one end of the sealing plate is movably connected with the tank body through a rotating shaft, and a locking rod is fixedly arranged on one side, far away from the rotating shaft, of the tank body. Preferably, one side of the sealing plate, which is far away from the rotating shaft, is fixedly provided with a connecting rod, a locking block is movably arranged on the connecting rod, a locking groove is formed in the locking block, the locking rod is positioned in the locking groove, one side of the sealing plate is fixedly provided with a connecting plate, the bottom of the connecting plate is fixedly provided with a spring, and one end of the spring is fixedly connected with the locking block. The beneficial effects of the utility model are as follows: (1) According to the utility model, through the linkage cooperation of the heat exchange tube, the rotating fan blades and other parts, high-temperature gas enters the heat exchange tube through the air inlet pipe, the waste heat of the gas in the heat exchange tube is absorbed through the liquid in the tank body, and in the absorption process, the rotating fan blades rotate, so that the liquid at the edge position of the tank body is driven to move towards the heat exchange tube at the same time, thereby reducing the temperature gradient difference in the tank body, promoting the liquid flow in the tank bod