A sintering machine flue gas coordinated treatment system

Abstract

This invention relates to the field of flue gas heat exchange technology and discloses a sintering machine flue gas co-treatment system, including a hood. Four exchange chambers are formed on the top of the hood, and four cold water chambers are formed inside the hood. The cold water chambers are wrapped around the outer walls of the exchange chambers, and a heat-conducting baffle is provided between the cold water chambers and the exchange chambers. This invention achieves pressurization by compressing the flue gas within the exchange chambers using a compression piston. Simultaneously, the heat-conducting baffle between the cold water chambers and the exchange chambers enables efficient heat exchange between the flue gas and cold water, significantly improving heat transfer efficiency. Furthermore, the sealing plate seals the cold water chambers, effectively extending the residence time of the cold water within them, further enhancing the heat exchange effect. The combination of pressurization and heat exchange, working synergistically, improves the treatment efficiency of the sintering machine flue gas, ensuring that the treated flue gas meets emission compliance requirements, and simultaneously utilizing waste heat, thus achieving resource conservation.

Description

Technical Field

[0001] This invention belongs to the field of flue gas heat exchange technology, specifically, it relates to a sintering machine flue gas co-processing system. Background Technology

[0002] During the sintering process, a large amount of high-temperature flue gas is generated. This flue gas not only contains pollutants but also carries a lot of heat. If not handled properly, it will not only cause environmental pollution but also lead to a large amount of heat loss due to insufficient heat exchange, resulting in energy waste.

[0003] Currently, in existing sintering machine flue gas treatment devices, the flue gas is constantly being transported, resulting in short contact time between the flue gas and the cooling medium, insufficient heat exchange area, and a lack of effective sealing and insulation measures. This leads to insufficient heat exchange, and a large amount of heat in the high-temperature flue gas cannot be effectively recovered and utilized, but is directly lost with the flue gas emission. This not only reduces energy utilization but also increases the energy consumption and cost of subsequent flue gas treatment. At the same time, insufficient heat exchange also leads to poor flue gas cooling effect, making it difficult to quickly reduce the flue gas temperature to the standard range, thus affecting the compliance of flue gas emission.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A sintering machine flue gas co-treatment system includes a cover.

[0006] The cover has four exchange chambers on its upper part and four cold water chambers inside the cover. The cold water chambers are wrapped around the outer walls of the exchange chambers, and a heat-conducting baffle is provided between the cold water chambers and the exchange chambers. A compression piston is slidably arranged inside the exchange chamber. A rod is installed at the bottom of the compression piston, and a sealing piston is installed on the rod. A sealing plate is slidably arranged inside the cold water chamber. A connecting rod is installed at the bottom of the sealing plate, and a squeezing piston is installed at the bottom of the connecting rod. The chambers corresponding to the bottom of the sealing piston and the bottom of the squeezing piston are interconnected. The bottom of the cover is rotatably provided with a turntable, and a ramp is installed on the turntable. The ramp is slidably connected to the bottom of the insertion rod. The ramp is used to drive the insertion rod to move downwards, which in turn compresses the inner cavity of the exchange chamber by the compression piston, increasing the pressure inside the exchange chamber. The sealing plate seals the cold water chamber, increasing the heat exchange time. As the compression piston moves downwards, its internal pressure compresses the flue gas inside the exchange chamber and discharges it.

[0007] In a preferred embodiment of the present invention, an outer cover is installed on the top of the cover, the outer cover covers the outside of the four exchange chambers, an input pipe is installed on the top of the outer cover, an mounting plate is installed on the bottom of the outer cover, and the mounting plate is installed on the cover by bolts, a connecting pipe is provided at the bottom of the exchange chamber, an output pipe is installed on the side wall of the connecting pipe, and a discharge pipe is installed at the end of the output pipe, and the discharge pipe is installed on the cover.

[0008] In a preferred embodiment of the present invention, a cold water inlet pipe and a cold water outlet pipe are installed at the bottom of the cover. Both the cold water inlet pipe and the cold water outlet pipe are L-shaped and are connected to the cold water chamber. Connecting flanges are installed at the ends of the cold water inlet pipe, the cold water outlet pipe, the input pipe and the discharge pipe.

[0009] In a preferred embodiment of the present invention, a support is installed at the bottom of the cover, a support plate is installed at the bottom of the support, the support plate and the support are perpendicular to each other, and a reinforcing rib is installed between the support plate and the support, the reinforcing rib is triangular, a plurality of positioning holes are opened at the bottom of the support plate, a plurality of notches are opened on the support, the notches are used to reduce the cost of profiles, and a fixing plate is installed at the top of the support, the fixing plate is installed at the bottom of the cover by bolts.

[0010] In a preferred embodiment of the present invention, an outer expansion groove is provided on the exchange chamber, the inner diameter of the outer expansion groove is larger than the inner diameter of the exchange chamber, and the size of the compression piston is adapted to the inner diameter of the exchange chamber. When the compression piston is located in the outer expansion groove, the flue gas flows into the exchange chamber along the gap.

[0011] In a preferred embodiment of the present invention, a connecting pipe is installed at the bottom of the connecting pipe, a positioning cover is connected to the end of the connecting pipe, the bottom of the positioning cover is installed at the bottom of the cover body, and a sealing plate is inserted into the positioning cover. The sealing piston is slidably disposed on the side wall of the connecting pipe, and the diameter of the sealing piston is smaller than the diameter of the compression piston, which is used to increase the internal pressure of the exchange chamber when the compression piston moves down. The side wall of the sealing piston is in contact with the end of the output pipe.

[0012] In a preferred embodiment of the present invention, a compression spring is installed on the exchange chamber, and the compression spring is sleeved on the outer wall of the insertion rod. One end of the compression spring is engaged with the bottom of the compression piston, and the other end of the compression spring is engaged with the end of the exchange chamber.

[0013] In a preferred embodiment of the present invention, a squeezing piston is slidably disposed inside the positioning cover, a connecting rod is mounted on the squeezing piston and is movably inserted into the positioning cover, a sealing plate is mounted on the top of the connecting rod, a countersunk groove is opened at the end of the cold water chamber and the diameter of the countersunk groove is larger than the diameter of the cold water chamber, and the size of the sealing plate corresponds to that of the cold water chamber, and a return spring is sleeved on the connecting rod, one end of the return spring is engaged with the positioning cover and the other end of the return spring is engaged with the squeezing piston.

[0014] In a preferred embodiment of the present invention, a fixed frame is mounted on the support plate, a drive motor is mounted on the fixed frame, a transmission shaft is mounted on the output end of the drive motor, and the transmission shaft is connected to the rotation center of the turntable.

[0015] In a preferred embodiment of the present invention, the bottom of the insertion rod is movably connected to the cover, and a sliding rod is installed at the end of the insertion rod, with the side wall of the sliding rod slidably connected to the slope surface.

[0016] Compared with the prior art, the present invention has the following advantages: This invention pressurizes the flue gas in the exchange chamber by compressing it with a piston. Simultaneously, it utilizes a heat-conducting baffle between the cold water chamber and the exchange chamber to achieve efficient heat exchange between the flue gas and cold water, significantly improving heat transfer efficiency. Furthermore, the sealing plate effectively seals the cold water chamber, extending the residence time of the cold water and further enhancing the heat exchange effect. By organically combining pressurization and heat exchange, the synergistic effect of these two processes improves the treatment efficiency of the sintering machine's flue gas, ensuring that the treated flue gas meets emission compliance requirements. Additionally, waste heat is utilized simultaneously, thus achieving the goal of resource conservation.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A three-dimensional diagram of a sintering machine flue gas co-treatment system; Figure 2 This is a schematic diagram of the structure of a sintering machine flue gas co-treatment system after the outer cover has been disassembled. Figure 3 An upward view of a sintering machine flue gas co-treatment system Figure 1 ; Figure 4 An upward view of a sintering machine flue gas co-treatment system Figure 2 ; Figure 5 A schematic diagram of the rotary table structure of a sintering machine flue gas co-treatment system; Figure 6A schematic diagram of the internal structure of a sintering machine flue gas co-treatment system. Figure 7 A sintering machine flue gas co-treatment system Figure 6 Floor plan.

[0019] In the picture: 1. Enclosure; 11. Exchange chamber; 111. Outer expansion groove; 112. Connecting pipe; 113. Output pipe; 114. Discharge pipe; 115. Outer cover; 116. Input pipe; 117. Mounting plate; 12. Cold water chamber; 121. Countersunk groove; 122. Cold water inlet pipe; 123. Cold water outlet pipe; 13. Support; 131. Support plate; 132. Positioning hole; 133. Reinforcing rib; 134. Notch; 135. Fixing plate; 2. Compression piston; 21. Insert rod; 211. Compression spring; 212. Sealing piston; 3. Sealing plate; 31. Positioning cover; 311. Compression piston; 312. Connecting rod; 313. Return spring; 314. Connecting pipe; 4. Turntable; 41. Drive motor; 411. Fixing frame; 412. Drive shaft; 42. Ramp; 421. Slide rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention. Example

[0021] like Figures 1 to 7 As shown, a sintering machine flue gas co-treatment system includes a cover 1.

[0022] Four exchange chambers 11 are provided on the top of the cover body 1, and four cold water chambers 12 are provided inside the cover body 1. The cold water chambers 12 are wrapped around the outer walls of the exchange chambers 11, and a heat-conducting baffle is provided between the cold water chambers 12 and the exchange chambers 11. A compression piston 2 is slidably provided inside the exchange chambers 11. A rod 21 is installed at the bottom of the compression piston 2, and a sealing piston 212 is installed on the rod 21. A sealing plate 3 is slidably provided inside the cold water chambers 12. A connecting rod 312 is installed at the bottom of the sealing plate 3, and a squeezing piston 311 is installed at the bottom of the connecting rod 312. The chambers corresponding to the bottom of the sealing piston 212 and the bottom of the squeezing piston 311 are interconnected. A turntable 4 is rotatably mounted at the bottom of the cover 1, and a ramp 42 is installed on the turntable 4. The ramp 42 is slidably connected to the bottom of the insert rod 21. The ramp 42 is used to drive the insertion rod 21 to move downward, and the compression piston 2 squeezes the inner cavity of the exchange chamber 11 to increase the pressure of the inner exchange chamber 11. The sealing plate 3 seals the cold water chamber 12 to increase the heat exchange time. As the compression piston 2 moves downward, its internal pressure squeezes the flue gas inside the exchange chamber 11 to be discharged.

[0023] like Figures 1 to 7 As shown, in a specific embodiment, an outer cover 115 is installed on the top of the hood 1, covering the outside of the four exchange chambers 11. An input pipe 116 is installed on the top of the outer cover 115, and an mounting plate 117 is installed on the bottom of the outer cover 115. The mounting plate 117 is bolted to the hood 1. A connecting pipe 112 is provided at the bottom of the exchange chamber 11, and an output pipe 113 is installed on the side wall of the connecting pipe 112. An exhaust pipe 114 is installed at the end of the output pipe 113 and is installed on the hood 1. The exhaust pipe 114 is installed on the hood 1. The outer cover 115, the input pipe 116, and the mounting plate 117 achieve uniform distribution and sealed air intake of flue gas, while the connecting pipe 112, the output pipe 113, and the exhaust pipe 114 achieve orderly output of treated flue gas, preventing flue gas leakage.

[0024] like Figures 1 to 7 As shown, furthermore, a cold water inlet pipe 122 and a cold water outlet pipe 123 are installed at the bottom of the enclosure 1. Both the cold water inlet pipe 122 and the cold water outlet pipe 123 are L-shaped and are interconnected with the cold water chamber 12. Connecting flanges are installed at the ends of the cold water inlet pipe 122, the cold water outlet pipe 123, the input pipe 116, and the discharge pipe 114. Stable water circulation in the cold water chamber 12 is achieved through the L-shaped cold water inlet pipe 122 and the cold water outlet pipe 123. The connecting flanges facilitate quick connection of external pipes, improving installation and maintenance efficiency.

[0025] like Figures 1 to 7 As shown, furthermore, a support 13 is installed at the bottom of the cover 1, and a support plate 131 is installed at the bottom of the support 13. The support plate 131 and the support 13 are perpendicular to each other, and a reinforcing rib 133 is installed between the support plate 131 and the support 13. The reinforcing rib 133 is triangular. Several pairs of positioning holes 132 are opened at the bottom of the support plate 131, and several pairs of notches 134 are opened on the support 13. The notches are used to reduce the cost of profiles. A fixing plate 135 is installed at the top of the support 13, and the fixing plate 135 is installed at the bottom of the cover 1 by bolts. The support 13, the support plate 131, and the positioning holes 132 achieve stable installation of the device. The triangular reinforcing rib 133 improves the structural strength, the notches 134 reduce the material cost, and the fixing plate 135 ensures that the cover 1 is firmly supported. Example

[0026] The difference between the above embodiments and this embodiment is that: Figures 1 to 7As shown, the exchange chamber 11 has an outer expansion groove 111, the inner diameter of which is larger than that of the exchange chamber 11. The size of the compression piston 2 is adapted to the inner diameter of the exchange chamber 11. When the compression piston 2 is positioned in the outer expansion groove 111, the flue gas flows into the exchange chamber 11 along the gap. A compression spring 211 is installed on the exchange chamber 11, and the compression spring 211 is sleeved on the outer wall of the insertion rod 21. One end of the compression spring 211 is engaged with the bottom of the compression piston 2, and the other end is engaged with the end of the exchange chamber 11. Automatic air intake is achieved by the gap formed between the outer expansion groove 111 and the compression piston 2. The compression spring 211 drives the insertion rod 21 and the compression piston 2 to quickly reset, ensuring continuous and efficient flue gas replenishment and circulation.

[0027] like Figures 1 to 7 As shown, in a specific embodiment, a connecting pipe 314 is installed at the bottom of the connecting pipe 112, and a positioning cover 31 is connected to the end of the connecting pipe 314. The bottom of the positioning cover 31 is installed at the bottom of the cover body 1, and a sealing plate 3 is inserted into the positioning cover 31. A sealing piston 212 is slidably disposed on the side wall of the connecting pipe 112, and the diameter of the sealing piston 212 is smaller than the diameter of the compression piston 2. This is used to increase the internal pressure of the exchange chamber 11 when the compression piston 2 moves downward. The side wall of the sealing piston 212 is in contact with the end of the output pipe 113. The positioning cover 31 and the connecting pipe 314 ensure accurate sliding positioning of the sealing plate 3 and the sealing piston 212. The sealing piston 212 and the output pipe 113 are in contact to achieve staged sealing, effectively increasing the flue gas pressure in the exchange chamber 11. Example

[0028] The difference between the above embodiments and this embodiment is that: Figures 1 to 7 As shown, a compression piston 311 is slidably disposed inside the positioning cover 31. A connecting rod 312 is mounted on the compression piston 311 and is movably inserted into the positioning cover 31. A sealing plate 3 is mounted on the top of the connecting rod 312. A countersunk groove 121 is formed at the end of the cold water chamber 12, and the diameter of the countersunk groove 121 is larger than the diameter of the cold water chamber 12. The dimensions of the sealing plate 3 and the cold water chamber 12 correspond to each other. A return spring 313 is sleeved on the connecting rod 312. One end of the return spring 313 is engaged with the positioning cover 31, and the other end is engaged with the compression piston 311. The compression piston 311 and the connecting rod 312 drive the sealing plate 3 to seal the cold water chamber 12. The countersunk groove 121 prevents the sealing plate 3 from being damaged by collision, and the return spring 313 ensures that the structure returns to its original position in a timely manner, improving the controllability of the water cooling cycle.

[0029] like Figures 1 to 7As shown, in a specific embodiment, a fixed frame 411 is installed on the support plate 131, and a drive motor 41 is installed on the fixed frame 411. A transmission shaft 412 is installed at the output end of the drive motor 41, and the transmission shaft 412 is connected to the rotation center of the turntable 4. The bottom of the insertion rod 21 passes through the cover 1, and a slide rod 421 is installed at the end of the insertion rod 21. The side wall of the slide rod 421 is slidably connected to the surface of the ramp 42. The drive motor 41, the fixed frame 411, and the transmission shaft 412 provide stable power to the turntable 4. The sliding cooperation between the slide rod 421 and the ramp 42 reduces friction and ensures that the insertion rod 21 moves smoothly up and down.

[0030] The implementation principle of the sintering machine flue gas co-treatment system of the present invention is as follows: The entire device is fixedly installed in place by the support plate 131 and positioning hole 132 at the bottom of the support 13. The notch 134 on the support 13 can effectively reduce the cost of the profile, and the triangular reinforcing rib 133 improves the connection stability between the support 13 and the support plate 131, ensuring the structural stability of the device during operation. The fixing plate 135 is firmly connected to the bottom of the cover 1 by bolts, providing stable support for the entire system. Subsequently, cold water is introduced into the four cold water chambers 12 inside the cover 1 through the L-shaped cold water inlet pipe 122. The cold water chambers 12 are wrapped around the outer wall of the exchange chamber 11. The heat-conducting baffle between them can achieve efficient heat conduction. After the cold water completes the heat exchange, it is discharged through the L-shaped cold water outlet pipe 123. The connecting flanges installed at the ends of the cold water inlet pipe 122, cold water outlet pipe 123, input pipe 116 and discharge pipe 114 facilitate connection with corresponding external pipes and ensure the smooth circulation of cold water and the transportation of flue gas.

[0031] During flue gas treatment, the flue gas generated by the sintering machine enters the interior of the outer cover 115 through the input pipe 116 at the top of the outer cover 115. The outer cover 115 covers the outside of the four exchange chambers 11, allowing the flue gas to be evenly distributed to each exchange chamber 11. The outer cover 115 is fixed to the cover body 1 by the mounting plate 117 and bolts, effectively preventing flue gas leakage. At this time, the drive motor 41 is mounted on the support plate 131 through the fixing bracket 411. After the drive motor 41 starts, the transmission shaft 412 at its output end drives the turntable 4 to rotate at the bottom of the cover body 1. The ramp 42 on the turntable 4 rotates synchronously. The bottom of the insertion rod 21 is movably connected to the cover body 1, and the sliding rod 421 installed at its end is slidably connected to the surface of the ramp 42. As the ramp 42 rotates, the sliding rod 421 is squeezed by the ramp 42, causing the insertion rod 21 to slide up and down along the cover body 1, ensuring a smooth sliding process.

[0032] When the insertion rod 21 moves downward under the drive of the ramp 42, the compression piston 2 at its top moves downward synchronously inside the exchange chamber 11, squeezing the flue gas inside the exchange chamber 11, thereby increasing the flue gas pressure inside the exchange chamber 11. At the same time, the sealing piston 212 on the insertion rod 21 moves downward synchronously. The sealing piston 212 is slidably disposed on the side wall of the connecting pipe 112, and its diameter is smaller than that of the compression piston 2, which can further increase the pressure inside the exchange chamber 11. At this time, the side wall of the sealing piston 212 is in contact with the end of the output pipe 113, realizing the temporary sealing of the output pipe 113, and preventing the flue gas from being discharged prematurely before the pressure reaches the required level.

[0033] Since the chambers corresponding to the bottom of the sealing piston 212 and the bottom of the extrusion piston 311 are interconnected, the pressure generated when the sealing piston 212 moves downward is transmitted to the extrusion piston 311, causing the extrusion piston 311 to move upward on the positioning cover 31. The connecting rod 312 installed on the extrusion piston 311 is movably inserted into the positioning cover 31. The sealing plate 3 installed on the top of the connecting rod 312 corresponds to the size of the cold water chamber 12. After moving upward synchronously, it seals the cold water chamber 12, prolonging the residence time of the cold water in the cold water chamber 12, thereby improving the heat exchange efficiency between the cold water and the flue gas in the exchange chamber 11. The heat-conducting baffle quickly transfers the heat of the flue gas to the cold water in the cold water chamber 12, realizing the cooling treatment of the flue gas.

[0034] The inner diameter of the outer expansion groove 111 on the exchange chamber 11 is larger than the inner diameter of the exchange chamber 11, and the size of the compression piston 2 is matched with the inner diameter of the exchange chamber 11. When the compression piston 2 is located in the outer expansion groove 111, a gap is formed between the compression piston 2 and the inner wall of the exchange chamber 11, and the flue gas can flow smoothly into the interior of the exchange chamber 11 along the gap to complete the replenishment of flue gas.

[0035] One end of the compression spring 211, which is sleeved on the outer wall of the insert rod 21, is engaged with the bottom of the compression piston 2, and the other end is engaged with the end of the exchange chamber 11. When the ramp 42 rotates to the bottom position, the elastic restoring force of the compression spring 211 can drive the compression piston 2 and the insert rod 21 to move upward quickly, preparing for the next flue gas compression. At the same time, one end of the return spring 313, which is sleeved on the connecting rod 312, is engaged with the positioning cover 31, and the other end is engaged with the extrusion piston 311. When the sealing piston 212 moves upward and the pressure disappears, the elastic restoring force of the return spring 313 can drive the extrusion piston 311, the connecting rod 312 and the sealing plate 3 to move upward and reset, releasing the seal on the cold water chamber 12, which facilitates the circulation and renewal of cold water. The countersunk groove 121 at the end of the cold water chamber 12 has a larger diameter than the diameter of the cold water chamber 12, which can prevent the sealing plate 3 from colliding with the end of the cold water chamber 12 when it moves upward, thus providing good protection.

[0036] After the flue gas in the exchange chamber 11 is compressed and pressurized and fully heat-exchanged, as the compression piston 2 continues to move downward, the flue gas pressure inside the exchange chamber 11 reaches a preset value. At this time, the sealing piston 212 continues to move downward, disengaging from the end of the output pipe 113, releasing the seal. The treated flue gas then enters the output pipe 113 through the connecting pipe 112 at the bottom of the exchange chamber 11, and is discharged through the discharge pipe 114, achieving compliant emission of the treated flue gas. Throughout the process, the four exchange chambers 11 correspond one-to-one with the four cold water chambers 12, and the four exchange chambers 11 operate alternately, which effectively avoids a continuous increase in gas pressure, ensures stable system operation, and simultaneously performs flue gas compression and heat exchange. Ultimately, this achieves continuous, efficient, and coordinated treatment of the sintering machine flue gas, achieving the core objectives of flue gas cooling and purification.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sintering machine flue gas co-treatment system, comprising a hood (1), characterized in that: The cover (1) has four exchange chambers (11) on its upper part and four cold water chambers (12) inside the cover (1). The cold water chambers (12) are wrapped around the outer wall of the exchange chambers (11). A heat-conducting baffle is provided between the cold water chambers (12) and the exchange chambers (11). A compression piston (2) is slidably arranged inside the exchange chambers (11). A rod (21) is installed at the bottom of the compression piston (2). A sealing piston (212) is installed on the rod (21). A sealing plate (3) is slidably arranged inside the cold water chambers (12). A connecting rod (312) is installed at the bottom of the sealing plate (3). A squeezing piston (311) is installed at the bottom of the connecting rod (312). The chambers corresponding to the bottom of the sealing piston (212) and the bottom of the squeezing piston (311) are interconnected. The bottom of the cover (1) is rotatably provided with a turntable (4), and a ramp (42) is installed on the turntable (4). The ramp (42) is slidably connected to the bottom of the plug rod (21). The ramp (42) is used to drive the insert rod (21) to move down, and the compression piston (2) squeezes the inner cavity of the exchange chamber (11) to increase the pressure of the inner exchange chamber (11). The sealing plate (3) seals the cold water chamber (12) to increase the heat exchange time. As the compression piston (2) moves down, its internal pressure squeezes the flue gas inside the exchange chamber (11) to be discharged.

2. The sintering machine flue gas co-treatment system according to claim 1, characterized in that, The top of the cover (1) is equipped with an outer cover (115), which covers the outside of the four exchange chambers (11). An input pipe (116) is installed on the top of the outer cover (115), and an installation plate (117) is installed on the bottom of the outer cover (115). The installation plate (117) is installed on the cover (1) by bolts. A connecting pipe (112) is provided at the bottom of the exchange chamber (11), and an output pipe (113) is installed on the side wall of the connecting pipe (112). A discharge pipe (114) is installed at the end of the output pipe (113), and the discharge pipe (114) is installed on the cover (1).

3. The sintering machine flue gas co-treatment system according to claim 2, characterized in that, The bottom of the cover (1) is equipped with a cold water inlet pipe (122) and a cold water outlet pipe (123). Both the cold water inlet pipe (122) and the cold water outlet pipe (123) are L-shaped and are connected to the cold water chamber (12). The ends of the cold water inlet pipe (122), the cold water outlet pipe (123), the input pipe (116), and the discharge pipe (114) are equipped with connecting flanges.

4. The sintering machine flue gas co-treatment system according to claim 1, characterized in that, The bottom of the cover (1) is equipped with a support (13), and the bottom of the support (13) is equipped with a support plate (131). The support plate (131) and the support (13) are perpendicular to each other. A reinforcing rib (133) is installed between the support plate (131) and the support (13). The reinforcing rib (133) is triangular. The bottom of the support plate (131) is provided with several pairs of positioning holes (132). The support (13) is provided with several pairs of notches (134). The notches are used to reduce the cost of profiles. The top of the support (13) is equipped with a fixing plate (135). The fixing plate (135) is installed at the bottom of the cover (1) by bolts.

5. The sintering machine flue gas co-treatment system according to claim 1, characterized in that, The exchange chamber (11) is provided with an outer expansion groove (111). The inner diameter of the outer expansion groove (111) is larger than the inner diameter of the exchange chamber (11). The size of the compression piston (2) is adapted to the inner diameter of the exchange chamber (11). When the compression piston (2) is located in the outer expansion groove (111), the flue gas flows along the gap to the exchange chamber (11).

6. The sintering machine flue gas co-treatment system according to claim 2, characterized in that, The bottom of the connecting pipe (112) is equipped with a connecting pipe (314), and the end of the connecting pipe (314) is connected to a positioning cover (31). The bottom of the positioning cover (31) is installed at the bottom of the cover body (1), and a sealing plate (3) is inserted into the positioning cover (31). The sealing piston (212) is slidably disposed on the side wall of the connecting pipe (112), and the diameter of the sealing piston (212) is smaller than the diameter of the compression piston (2). It is used to increase the internal pressure of the exchange chamber (11) when the compression piston (2) moves down. The side wall of the sealing piston (212) is in contact with the end of the output pipe (113).

7. The sintering machine flue gas co-treatment system according to claim 6, characterized in that, A compression spring (211) is installed on the exchange chamber (11), and the compression spring (211) is sleeved on the outer wall of the insert rod (21). One end of the compression spring (211) is clamped to the bottom of the compression piston (2), and the other end of the compression spring (211) is clamped to the end of the exchange chamber (11).

8. The sintering machine flue gas co-treatment system according to claim 6, characterized in that, A squeezing piston (311) is slidably disposed inside the positioning cover (31). A connecting rod (312) is installed on the squeezing piston (311), and the connecting rod (312) is movably inserted into the positioning cover (31). A sealing plate (3) is installed on the top of the connecting rod (312). A countersunk groove (121) is opened at the end of the cold water chamber (12), and the diameter of the countersunk groove (121) is larger than the diameter of the cold water chamber (12). The size of the sealing plate (3) corresponds to that of the cold water chamber (12). A return spring (313) is sleeved on the connecting rod (312). One end of the return spring (313) is clamped on the positioning cover (31), and the other end of the return spring (313) is clamped on the squeezing piston (311).

9. The sintering machine flue gas co-treatment system according to claim 4, characterized in that, A fixed frame (411) is installed on the support plate (131), a drive motor (41) is installed on the fixed frame (411), and a transmission shaft (412) is installed at the output end of the drive motor (41). The transmission shaft (412) is connected to the rotation center of the turntable (4).

10. The sintering machine flue gas co-treatment system according to claim 1, characterized in that, The bottom of the insertion rod (21) is movably connected to the cover (1), and a sliding rod (421) is installed at the end of the insertion rod (21). The side wall of the sliding rod (421) is slidably connected to the surface of the slope (42).

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