Sintering machine flue gas carbon monoxide treatment device

Abstract

The invention relates to the technical field of flue gas treatment, and discloses a sintering machine flue gas carbon monoxide treatment device which comprises desulfurization equipment, heat exchange equipment, combustion equipment, denitration equipment and a fan. Sintering flue gas enters the heating side of the heat exchange equipment after being subjected to desulfurization and dust removal through the desulfurization equipment, the flue gas heated and heated through the heat exchange equipment then enters the combustion equipment to purify CO and VOCs combustibles in the flue gas, and then the high-temperature flue gas is subjected to denitration treatment through the denitration equipment and guided into the heat exchange side of the heat exchange equipment to conduct heat exchange. And finally discharging through a fan. And efficient recycling of heat is achieved through the design of a heat storage chamber in the combustion equipment. The two groups of heat storage chambers alternately carry out heat release and heat storage processes, flue gas transfers heat to the heat storage module in the heat release and heat storage chambers, and the heat is recovered through the heat storage and heat storage chambers after being purified in the oxidation chamber, so that the waste of energy is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas treatment, in particular to a device for treating carbon monoxide in flue gas from a sintering machine. Background Art

[0002] In the steel industry, sintering machines, as crucial production equipment, generate large quantities of flue gas during operation. This flue gas contains a variety of pollutants, including carbon monoxide (CO), volatile organic compounds (VOCs), sulfur oxides, nitrogen oxides, and dust. If discharged without effective treatment, it not only severely pollutes the atmosphere, causing environmental problems such as smog and acid rain, but also poses significant risks to surrounding ecosystems and human health. For example, CO can cause hypoxia and poisoning in humans, while sulfur oxides and nitrogen oxides, the primary components of acid rain, can cause respiratory diseases through long-term exposure. Therefore, efficient treatment of sintering machine flue gas has become a critical component in achieving green and sustainable development in the steel industry.

[0003] At present, for the treatment of sintering machine flue gas, traditional technologies usually adopt single or combined processes such as desulfurization, denitrification, and dust removal. In terms of pollutant purification, the desulfurization efficiency of traditional desulfurization equipment under some complex working conditions is limited, and it is difficult to meet the increasingly stringent environmental protection standards; during the combustion purification process, most devices lack an efficient heat recovery mechanism, and a large amount of heat in the high-temperature flue gas is directly dissipated, resulting in a huge waste of energy and an increase in the company's production costs. In summary, the existing sintering machine flue gas treatment technology has many problems such as low purification efficiency, serious energy waste, and difficult equipment maintenance. There is an urgent need for a new type of flue gas treatment device to achieve efficient pollutant purification, heat recovery and utilization, and automated equipment maintenance to meet the needs of green development and energy conservation and emission reduction in the steel industry. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a sintering machine flue gas carbon monoxide treatment device to utilize heat.

[0005] The present invention provides the following technical solution: a sintering machine flue gas carbon monoxide treatment device, comprising a desulfurization device, a heat exchange device, a combustion device, a denitrification device and a fan;

[0006] After passing through the desulfurization equipment for desulfurization and dust removal, the sintering flue gas enters the heating side of the heat exchange equipment. After being heated by the heat exchange equipment, the flue gas then enters the combustion equipment to purify the CO and VOCs combustibles in the flue gas. After that, the high-temperature flue gas passes through the denitrification equipment for denitrification and is introduced into the heat exchange side of the heat exchange equipment for heat replacement, and finally discharged through the fan;

[0007] The combustion equipment includes a plurality of heat storage chambers, and the plurality of heat storage chambers are divided into two groups. The tops of all the heat storage chambers are connected to the oxidation chamber, and the bottoms of all the heat storage chambers are installed with switching valves. The switching valves at the bottom of the heat storage chambers are respectively connected to the gas pipe and the smoke exhaust pipe. By adjusting one group of switching valves to be connected to the gas pipe, and adjusting the other group of switching valves to be connected to the smoke exhaust pipe, the flue gas enters the interior of one group of heat storage chambers through the gas pipe to complete the heat release process, and is then introduced into the oxidation chamber to purify CO and VOCs combustibles by high temperature. The high-temperature flue gas then enters the other group of heat storage chambers to heat them, completing the heat storage process, and is finally discharged from the smoke exhaust pipe. Then, the switching valves are adjusted to allow the flue gas to be introduced from the heat storage chamber that has completed the heat storage process, and then discharged from the heat storage chamber that has completed the heat release process, and this process is repeated.

[0008] The heat storage chamber is equipped with a rotatable heat storage module, which allows the flue gas to be heated evenly when passing through it, thereby enhancing the efficiency of heat storage and heat release.

[0009] The heat storage chamber is provided with an air distribution plate located below the heat storage module, which centrifugally separates the flue gas entering the bottom of the heat storage chamber and adjusts the flue gas distribution;

[0010] The heat storage chamber is provided with an isolation component located above the heat storage module, and the carbon black after the flue gas combustion is separated by the isolation component and automatically cleaned.

[0011] Preferably, the heat storage module includes a support ring and a positioning ring installed inside the heat storage chamber, a rotatable heat-insulating cylinder is provided on the inner side of the support ring, a connecting ring located on the top of the positioning ring is installed on the top of the heat-insulating cylinder, the bottom end of the connecting ring is rotatably connected to the support ring through a thrust bearing, a metal mesh is provided at the bottom end of the heat-insulating cylinder, and the interior of the heat-insulating cylinder is filled with a ceramic heat-storage body located on the metal mesh, and the bottom end of the heat-insulating cylinder is connected to the inner side of the positioning ring through a rotating seal.

[0012] Preferably, a circle of teeth is provided on the outside of the insulating cylinder, and the teeth are driven by gears so that the insulating cylinder drives the ceramic heat storage body to rotate, and the gears are driven by a motor to rotate the ceramic heat storage body, so that when the flue gas passes through, it is heated evenly during the heat storage and heat release process.

[0013] Preferably, the gas equalizing disk includes a column located at the center of the heat storage chamber, with spiral blades installed on the outside of the column, and the spiral blades are connected to the inner wall of the heat storage chamber. The spiral blades are used to centrifugally separate the flue gas and adjust the flue gas guide distribution.

[0014] Preferably, an outer spiral baffle and an inner spiral side plate are installed between the edges of the spiral blades, and an ash discharge channel is provided between the spiral baffle and the spiral side plate. The inner side surface of the spiral side plate is provided with equally distributed inclined panels, and the inclined panels are inclined in the upward direction of the spiral, so that when the flue gas enters from the bottom of the spiral blade, it passes along the inclined surface of the inclined panel. An ash discharge port is provided on the spiral side plate at the inclined panel. When the flue gas enters from the top of the spiral blade, the flue gas is throttled by the inclined panel and introduced into the ash discharge channel to clean the dust inside.

[0015] Preferably, a rotatable one-way valve plate is installed at the bottom end of the ash discharge channel, and the one-way valve plate blocks the bottom of the ash discharge channel under the elastic force of a spring.

[0016] Preferably, the isolation assembly includes a negative pressure ring sleeve installed inside the heat storage chamber, a ring groove with a U-shaped cross-section is installed on the top of the negative pressure ring sleeve, a rotatable bracket is provided inside the ring groove, a shaft column is installed at the center of the bracket, a rotatable conical filter is provided on the top of the shaft column, and the skeleton of the bottom of the conical filter is installed on the inner top of the ring groove, so that the sliding carbon black falls into the inside of the ring groove.

[0017] Preferably, several groups of guide columns are provided at the bottom end of the annular groove, and the guide columns are inserted into the frame of the heat storage module, and the bracket is driven to rotate through the heat storage module. Two cleaning brushes are installed on the top of the shaft column, and the cleaning brushes are driven by the bracket to clean the conical filter.

[0018] Preferably, the bottom end of the annular groove is provided with an ash discharge pipe inserted into the negative pressure ring sleeve, and corresponding holes are provided on the negative pressure ring sleeve. The negative pressure ring sleeve is connected to the smoke exhaust pipe through a pipe, and the smoke is discharged through the smoke exhaust pipe, so that the negative pressure ring sleeve connected through the pipe generates negative pressure, and the dust inside it is sucked out.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The design of the regenerator in the combustion equipment achieves efficient heat recovery and utilization. The two sets of regenerators alternately release and store heat. The flue gas transfers heat to the heat storage module in the heat release regenerator. After being purified in the oxidation chamber, the heat is recovered through the heat storage regenerator, reducing energy waste.

[0021] (2) The rotatable ceramic heat storage body in the heat storage module makes the flue gas heated evenly, further enhancing the heat storage and heat release efficiency, improving the heat recovery rate, reducing the energy consumption during the operation of the device, saving production costs, and complying with the development trend of energy conservation and emission reduction.

[0022] (3) The gas distribution plate in the heat storage chamber has a good regulating effect on the incoming flue gas. The spiral blades make the flue gas produce centrifugal motion, which separates impurities such as dust and prevents impurities from entering the heat storage module and affecting the heat storage effect. In addition, the unique ash discharge structure design can automatically clean the dust when the flue gas passes through the spiral blades from different directions, ensuring the smooth flow of the ash discharge channel, reducing the frequency and cost of manual maintenance, and also ensuring the uniform distribution of flue gas in the heat storage chamber, improving the stability and reliability of the entire device operation.

[0023] (4) The isolation component realizes the automatic separation and cleaning of carbon black after flue gas combustion. The conical filter can effectively intercept carbon black. When the heat storage module rotates, it drives the cleaning brush to clean the conical filter to prevent the filter from being blocked. The negative pressure generated by the negative pressure ring and the exhaust pipe can automatically suck out the collected carbon black, eliminating the need for frequent manual cleaning, reducing labor intensity, increasing the continuous operation time of the equipment, reducing downtime caused by equipment maintenance, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the process flow of the present invention;

[0025] Figure 2 This is a schematic structural diagram of the combustion equipment of the present invention;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure;

[0027] Figure 4 This is a schematic diagram of the heat storage module structure of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the gas equalizing plate of the present invention;

[0029] Figure 6 This is a schematic diagram of the internal structure of the gas equalizing disk of the present invention;

[0030] Figure 7 Schematic diagram of the isolation component structure of the present invention.

[0031] In the figure: 1. heat storage chamber; 2. oxidation chamber; 3. switching valve; 4. gas transmission pipe; 5. smoke exhaust pipe; 6. heat storage module; 7. gas equalizing plate; 8. isolation assembly; 61. support ring; 62. positioning ring; 63. insulation cylinder; 64. connecting ring; 65. ceramic heat storage body; 66. tooth groove; 67. gear; 71. column; 72. spiral blade; 73. spiral baffle; 74. spiral side plate; 75. inclined plate; 76. ash discharge port; 77. ash discharge channel; 78. one-way valve plate; 81. negative pressure ring sleeve; 82. ring groove; 83. bracket; 84. shaft column; 85. conical filter screen; 86. guide column; 87. cleaning brush; 88. ash discharge pipe; 89. hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components to avoid unnecessary confusion of the concepts of the present invention.

[0033] See also Figure 1 , a sintering machine flue gas carbon monoxide treatment device, the desulfurization equipment, heat exchange equipment, combustion equipment, denitrification equipment and fan are laid out and installed according to the process flow. Use heat-resistant and corrosion-resistant pipes to connect each device in sequence to ensure that the connection is tight to prevent flue gas leakage. Specifically, the sintering flue gas outlet is connected to the inlet of the desulfurization equipment, the outlet of the desulfurization equipment is connected to the heating side inlet of the heat exchange equipment, the heating side outlet of the heat exchange equipment is connected to the gas pipe 4 of the combustion equipment, the exhaust pipe 5 of the combustion equipment is connected to the heat exchange side inlet of the heat exchange equipment, the heat exchange side outlet of the heat exchange equipment is connected to the inlet of the denitrification equipment, the denitrification equipment outlet is connected to the fan inlet, and the fan outlet is connected to the emission chimney or subsequent processing link.

[0034] See Figure 2 and Figure 3 The combustion equipment consists of several regenerators 1, which are divided into two groups. The top of each regenerator 1 is connected to the oxidation chamber 2, and a switching valve 3 is installed at the bottom. The switching valve 3 is connected to the gas pipeline 4 and the smoke exhaust pipe 5 respectively. By controlling the opening and closing state of the switching valve 3, the flow direction of the flue gas can be changed.

[0035] When the switching valve 3 of one set of regenerators 1 is connected to the gas pipe 4, and the switching valve 3 of the other set of regenerators 1 is connected to the exhaust pipe 5, flue gas enters the regenerator 1 connected to the gas pipe 4 through the gas pipe 4. During this process, the flue gas transfers its own heat to the heat storage module 6 within the regenerator 1, completing the heat release process. The flue gas is then directed into the oxidation chamber 2. Combustion in the oxidation chamber 2 oxidizes and burns combustibles such as CO and VOCs in the flue gas at high temperatures, achieving purification. The purified, high-temperature flue gas then enters the regenerator 1 connected to the exhaust pipe 5, where it heats the heat storage module 6 there, completing the heat storage process, before being discharged through the exhaust pipe 5. After completing one heat exchange cycle, the switching valve 3 is adjusted to direct the flue gas from the regenerator 1 that has completed the heat storage process and then from the regenerator 1 that has completed the heat release process. This cycle repeats, achieving efficient heat recovery and utilization.

[0036] See Figure 4The heat storage module 6 includes a support ring 61 and a positioning ring 62, both of which are installed inside the heat storage chamber 1. A rotatable heat-insulating cylinder 63 is provided on the inner side of the support ring 61, and a connecting ring 64 is installed on the top of the heat-insulating cylinder 63. The connecting ring 64 is located on the top of the positioning ring 62, and its bottom end is rotatably connected to the support ring 61 through a thrust bearing, which enables the heat-insulating cylinder 63 to rotate flexibly. A metal mesh is provided at the bottom end of the heat-insulating cylinder 63, and a ceramic heat-storing body 65 is filled inside. The ceramic heat-storing body 65 is placed on the metal mesh, which has good heat storage performance and can effectively absorb and release heat. The bottom end of the heat-insulating cylinder 63 is connected to the inner side of the positioning ring 62 by a rotating seal to ensure that the flue gas will not leak.

[0037] The outer surface of the insulating cylinder 63 is provided with a ring of teeth 66, which mesh with a gear 67 driven by a motor. When the motor is turned on, it drives the gear 67, which in turn rotates the insulating cylinder 63 and the ceramic heat accumulator 65. As the flue gas passes through the heat storage chamber 1, the rotating ceramic heat accumulator 65 ensures more uniform heating of the flue gas during both heat storage and release, significantly enhancing the efficiency of both storage and release and preventing localized overheating.

[0038] See Figure 5 and Figure 6 The gas distribution plate 7 is located at the center of the regenerator 1. Its core component is a column 71, with spiral blades 72 mounted on the outside of the column 71. These blades are connected to the inner wall of the regenerator 1. When flue gas enters the regenerator 1 from the bottom, the spiral blades 72 cause the flue gas to undergo centrifugal motion, achieving centrifugal separation and removing impurities such as dust from the flue gas, which adhere to the outermost surface. Furthermore, the spiral blades 72 regulate the flow of the flue gas, ensuring a more even distribution within the regenerator 1.

[0039] An outer spiral baffle 73 and an inner spiral side plate 74 are mounted between the edges of the spiral blades 72, forming an ash discharge passage 77. The inner side surfaces of the spiral side plates 74 are provided with equally spaced inclined panels 75, which are inclined in the upward spiral direction. The spiral side plates 74 are provided with ash discharge ports 76 located on the inclined panels 75.

[0040] When the flue gas enters from the bottom of the spiral blade 72, it will pass along the inclined surface of the inclined plate 75. At this time, the inclined plate 75 will not block the guidance of the flue gas, and the dust attached to the spiral side plate 74 will fall off and enter the ash discharge channel 77 through the ash discharge port 76, thereby processing the impurities in the flue gas, reducing the contact between the impurities and the ceramic heat storage body 65, and avoiding excessive impurities covering the surface of the ceramic heat storage body 65, which affects the heat storage effect.

[0041] When the smoke enters from the top of the spiral blade 72, it will be throttled by the inclined panel 75 and introduced into the ash discharge channel 77 through the ash discharge port 76, thereby cleaning the dust in the ash discharge channel 77, exporting the dust, and automatically completing the cleaning to avoid excessive dust accumulation.

[0042] A rotatable one-way valve plate 78 is installed at the bottom end of the ash discharge channel 77. Under the action of the spring, the one-way valve plate 78 usually blocks the bottom of the ash discharge channel 77. The principle is the same as that of the one-way valve. Only when the flue gas enters from the bottom of the spiral blade 72, the flue gas cannot open the one-way valve plate 78. At this time, the flue gas will not enter the ash discharge channel 77 in large quantities, preventing the dust inside from being driven by the flue gas to contact the ceramic heat storage body 65. When the flue gas enters from the top of the spiral blade 72, the pressure of the flue gas will open the one-way valve plate 78, and the flue gas carrying the dust will be discharged from the ash discharge channel 77, completing the cleaning process.

[0043] See Figure 7 The isolation assembly 8 includes a negative pressure ring 81 mounted inside the heat storage chamber 1. A U-shaped annular groove 82 is mounted on the top of the negative pressure ring 81. A rotatable bracket 83 is mounted inside the annular groove 82. A shaft 84 is mounted at the center of the bracket 83. A rotatable conical filter 85 is mounted on the top of the shaft 84. The bottom frame of the conical filter 85 is mounted on the inner top of the annular groove 82. This design allows any falling carbon black to fall into the annular groove 82.

[0044] The bottom end of the annular groove 82 is provided with several groups of guide posts 86, which are inserted into the corresponding sockets of the connecting ring 64 of the heat storage module 6. When the heat storage module 6 rotates, it will drive the bracket 83 to rotate, and the two cleaning brushes 87 installed on the top of the shaft column 84 will also rotate accordingly, cleaning the conical filter 85 to prevent carbon black from clogging the filter. The bottom end of the annular groove 82 is provided with an ash discharge pipe 88, which is inserted into the negative pressure ring sleeve 81. The negative pressure ring sleeve 81 is provided with corresponding holes 89. The negative pressure ring sleeve 81 is connected to the smoke exhaust pipe 5 through a pipeline. When the smoke exhaust pipe 5 discharges smoke, it will cause the negative pressure ring sleeve 81 connected to it to generate negative pressure, thereby sucking out the dust in the annular groove 82 through the ash discharge pipe 88.

[0045] After the flue gas is burned, the carbon black formed by combustibles such as CO and VOCs is intercepted by the conical filter 85. The conical structure adjusts the flue gas flow rate by changing the cross-section. The speed increase in the gradually contracting section enhances inertial separation, and the speed decrease in the gradually expanding section promotes laminar flow stability. The inclination angle of the inner wall of the conical filter (30°-45°) combined with the tangential inlet forms a spiral airflow. The centrifugal acceleration can reach 200-500g, so that particles above PM10 are thrown to the outer wall, and the capture efficiency is increased by 30%-50%. At the same time, the self-cleaning structure can clean the surface of the conical filter 85 to complete the self-cleaning process.

[0046] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A sintering machine flue gas carbon monoxide treatment device, characterized by: Including desulfurization equipment, heat exchange equipment, combustion equipment, denitrification equipment and fans; After passing through the desulfurization equipment for desulfurization and dust removal, the sintering flue gas enters the heating side of the heat exchange equipment. After being heated by the heat exchange equipment, the flue gas then enters the combustion equipment to purify the CO and VOCs combustibles in the flue gas. After that, the high-temperature flue gas passes through the denitrification equipment for denitrification and is introduced into the heat exchange side of the heat exchange equipment for heat replacement, and finally discharged through the fan; The combustion equipment includes a plurality of heat storage chambers (1), and the plurality of heat storage chambers (1) are divided into two groups. The tops of all heat storage chambers (1) are connected to the oxidation chamber (2). The bottoms of all heat storage chambers (1) are installed with three-way valves (3). The three-way valves (3) at the bottoms of the heat storage chambers (1) are respectively connected to the gas supply pipe (4) and the smoke exhaust pipe (5). By adjusting one group of switching valves (3) to be connected to the gas supply pipe (4), and adjusting another group of switching valves (3) to be connected to the smoke exhaust pipe (5), the smoke is discharged. The flue gas enters a group of heat storage chambers (1) through the gas transmission pipe (4), completes the heat release process, and is then introduced into the oxidation chamber (2) for combustion, where the CO and VOCs combustibles are purified by the high temperature. The high-temperature flue gas then enters another group of heat storage chambers (1) to be heated, completing the heat storage process, and is finally discharged from the exhaust pipe (5). The switching valve (3) is then adjusted to allow the flue gas to be introduced from the heat storage chamber (1) that has completed the heat storage process, and then discharged from the heat storage chamber (1) that has completed the heat release process, and this process is repeated. The heat storage chamber (1) is equipped with a rotatable heat storage module (6). The rotating heat storage module (6) allows the flue gas to be heated evenly when passing through, thereby enhancing the efficiency of heat storage and heat release. The heat storage chamber (1) is provided with a gas distribution plate (7) located below the heat storage module (6), and the gas distribution plate (7) is used to centrifugally separate the flue gas entering the bottom of the heat storage chamber (1) and adjust the flue gas distribution; An isolation component (8) located above the heat storage module (6) is provided inside the heat storage chamber (1). The isolation component (8) is used to separate the carbon black after the flue gas is burned and automatically clean it.

2. The carbon monoxide treatment device for sintering machine flue gas according to claim 1, characterized in that: The heat storage module (6) comprises a support ring (61) and a positioning ring (62) installed inside the heat storage chamber (1); a rotatable heat-insulating cylinder (63) is provided on the inner side of the support ring (61); a connecting ring (64) located on the top of the positioning ring (62) is installed on the top of the heat-insulating cylinder (63); the bottom end of the connecting ring (64) is rotatably connected to the support ring (61) via a thrust bearing; a metal mesh is provided at the bottom end of the heat-insulating cylinder (63), and the interior of the heat-insulating cylinder (63) is filled with a ceramic heat storage body (65) located on the metal mesh; the bottom end of the heat-insulating cylinder (63) is connected to the inner side of the positioning ring (62) via a rotary seal.

3. The device for treating carbon monoxide in sintering machine flue gas according to claim 2, characterized in that: A circle of tooth grooves (66) is provided on the outer side of the heat-insulating cylinder (63). The tooth grooves (66) are driven by gears (67) so that the heat-insulating cylinder (63) drives the ceramic heat storage body (65) to rotate. The gears (67) are driven by a motor so that the ceramic heat storage body (65) rotates, so that when the smoke passes through, it is heated evenly during the heat storage and heat release processes.

4. The device for treating carbon monoxide in sintering machine flue gas according to claim 1, characterized in that: The gas equalizing disk (7) comprises a column (71) located at the center of the heat storage chamber (1), a spiral blade (72) is installed on the outside of the column (71), and the spiral blade (72) is connected to the inner wall of the heat storage chamber (1). The spiral blade (72) centrifuges the flue gas and adjusts the flue gas guide distribution.

5. The device for treating carbon monoxide in sintering machine flue gas according to claim 4, characterized in that: An outer spiral baffle (73) and an inner spiral side plate (74) are installed between the edges of the spiral blade (72), and an ash discharge channel (77) is provided between the spiral baffle (73) and the spiral side plate (74). The inner side surface of the spiral side plate (74) is provided with equidistantly distributed inclined panels (75), and the inclined panels (75) are inclined in the upward direction of the spiral, so that when the smoke enters from the bottom of the spiral blade (72), it passes along the inclined surface of the inclined panel (75). The spiral side plate (74) is provided with an ash discharge port (76) located at the inclined panel (75). When the smoke enters from the top of the spiral blade (72), the smoke is throttled by the inclined panel (75) and introduced into the ash discharge channel (77), and the dust inside is cleaned.

6. The device for treating carbon monoxide in sintering machine flue gas according to claim 5, characterized in that: A rotatable one-way valve plate (78) is installed at the bottom end of the ash discharge channel (77), and the one-way valve plate (78) blocks the bottom of the ash discharge channel (77) under the elastic force of a spring.

7. The device for treating carbon monoxide in sintering machine flue gas according to claim 1, characterized in that: The isolation assembly (8) includes a negative pressure ring sleeve (81) installed inside the heat storage chamber (1), a ring groove (82) with a U-shaped cross section is installed on the top of the negative pressure ring sleeve (81), a rotatable bracket (83) is provided inside the ring groove (82), a shaft column (84) is installed at the center of the bracket (83), a rotatable conical filter (85) is provided on the top of the shaft column (84), and the skeleton of the bottom of the conical filter (85) is installed on the inner top of the ring groove (82), so that the sliding carbon black falls into the inside of the ring groove (82).

8. The device for treating carbon monoxide in sintering machine flue gas according to claim 7, characterized in that: The bottom end of the annular groove (82) is provided with a plurality of guide columns (86), and the guide columns (86) are inserted into the frame of the heat storage module (6), and the bracket (83) is driven to rotate by the heat storage module (6). Two cleaning brushes (87) are installed on the top of the shaft column (84), and the cleaning brushes (87) are driven by the bracket (83) to clean the conical filter (85).

9. The device for treating carbon monoxide in sintering machine flue gas according to claim 7, characterized in that: The bottom end of the annular groove (82) is provided with an ash discharge pipe (88) inserted into the negative pressure ring sleeve (81), and the negative pressure ring sleeve (81) is provided with a corresponding hole (89). The negative pressure ring sleeve (81) is connected to the smoke exhaust pipe (5) through a pipe, and smoke is discharged through the smoke exhaust pipe (5), so that the negative pressure ring sleeve (81) connected through the pipe generates negative pressure, thereby sucking out the dust inside it.

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