Energy-saving and environment-friendly sulfur tail gas incinerator

Abstract

The present application relates to incinerator technical field, especially to a kind of energy-saving and environment-friendly sulphur tail gas incinerator.A kind of energy-saving and environment-friendly sulphur tail gas incinerator, including outer cylinder, outer cylinder is fixedly connected with inner cylinder, inner cylinder is provided with incineration cavity, outer cylinder is provided with bottom plate, the top of inner cylinder is communicated with first tail gas inlet pipe, fuel inlet pipe and first air inlet pipe communicated with incineration cavity, bottom plate, inner cylinder and outer cylinder are fixedly connected with the heat exchange shell of circumferential distribution, first baffle plate is fixedly connected between adjacent heat exchange shell.The heat of heat exchange shell is transmitted to untreated tail gas and combustion air, the temperature of untreated tail gas and combustion air is increased, the temperature in incineration cavity is avoided to sharply drop, the use of fuel gas is reduced, fuel resources are saved, the contact time of high-temperature gas and heat exchange shell is extended by the interception effect of first baffle plate, and then the heat of high-temperature gas is fully absorbed by heat exchange shell.

Description

Technical Field

[0001] The present invention relates to the technical field of incinerators, and in particular to an energy-saving and environment-friendly sulfur tail gas incinerator. Background Art

[0002] Sulfur recovery is required in both the coal processing industry and the petroleum refining industry. During the sulfur recovery process, a certain amount of toxic components such as hydrocarbons and hydrogen sulfide will be produced. In order to avoid these toxic substances from polluting the environment, the tail gas generated during the sulfur recovery process needs to be incinerated.

[0003] Sulfur tail gas incinerator is a device used to treat tail gas containing hydrocarbons and hydrogen sulfide. This device mainly uses high-temperature combustion to fully oxidize harmful substances such as organic matter and harmful gases in the tail gas to achieve the purpose of purification or reducing emission concentration.

[0004] Existing sulfur tail gas incinerators need to maintain a constant high-temperature environment during the process of treating tail gas. Since the specified temperature cannot be reached during the combustion of tail gas, a certain amount of fuel gas needs to be added to assist combustion during the treatment of tail gas so that the temperature in the incinerator reaches the specified temperature. However, after adding untreated tail gas and other gases, the temperature in the furnace will drop sharply. At this time, more fuel gas needs to be added to reach the specified temperature. In this process, the existing incinerator will waste more fuel resources. Summary of the Invention

[0005] In order to overcome the shortcomings described in the above background technology, the purpose of the present invention is to provide an energy-saving and environmentally friendly sulfur tail gas incinerator.

[0006] Technical solution: An energy-saving and environmentally friendly sulfur tail gas incinerator, comprising an outer tube, the outer tube is fixedly connected to an inner tube, an ignition device for igniting gas is installed in the inner tube, an incineration chamber is provided in the inner tube, the outer tube is provided with a bottom plate, the top of the inner tube is fixedly connected to a first tail gas inlet pipe, a fuel inlet pipe and a first air inlet pipe connected to the incineration chamber, the bottom plate, the inner tube and the outer tube are fixedly connected to a circumferentially distributed heat exchange shell, the outer tube is connected to an air outlet pipe, the gap between adjacent heat exchange shells is connected to the air outlet pipe, the inner tube is fixedly connected to a fixing ring, and the fixing ring is provided with a The through hole, the fixing ring and the inner tube are jointly fixed with circumferentially distributed partitions, the gaps between adjacent partitions are connected to adjacent heat exchange shells, the outer tube is fixed with a circumferentially distributed first connecting tube and a circumferentially distributed second connecting tube connected to adjacent heat exchange shells, the circumferentially distributed first connecting tube is connected to the second air inlet pipe, the circumferentially distributed second connecting tube is connected to the second exhaust gas inlet pipe, the inner tube is fixed with a mixed gas outlet pipe connected to the gaps between adjacent partitions, and the first exhaust gas inlet pipe, the fuel inlet pipe, the first air inlet pipe, the second air inlet pipe and the second exhaust gas inlet pipe are all equipped with solenoid valves.

[0007] Preferably, a first baffle plate is fixed between the adjacent heat exchange shells, and the first baffle plate is used to prolong the time of gas flowing through the adjacent heat exchange shells.

[0008] Preferably, the first baffle plate is in a spiral shape, and is used to increase the contact area with the adjacent heat exchange shells.

[0009] Preferably, the heat exchange shell is provided with a second baffle plate, and the second baffle plate is used to prolong the time of gas flowing through the heat exchange shell.

[0010] Preferably, the second baffle plate is in a spiral shape, and is used to make the gas contact with the adjacent heat exchange shells uniformly.

[0011] Preferably, the circumferentially distributed first communication pipes and the circumferentially distributed second communication pipes are staggered, and the gas in the first communication pipes and the gas in the second communication pipes are mixed.

[0012] Preferably, the adjacent mixed gas outlet pipes are fixed together with a confluence pipe, and the confluence pipe is fixed with a confluence plate.

[0013] Preferably, the confluence pipe is fixed with a spoiler, and the spoiler is used to mix the gas flowing through the confluence pipe.

[0014] Preferably, the inner cylinder is fixed with a spoiler frame, and the spoiler frame is used to mix the gas processed in the incineration cavity.

[0015] Preferably, the bottom plate is fixed with a flow distribution seat, the middle part of the flow distribution seat is in a conical shape, and the flow distribution seat is used to disperse the gas in the incineration cavity.

[0016] Compared with the prior art, the present invention has the following advantages: the present invention transfers the heat of the heat exchange shell itself to the untreated exhaust gas and combustion air, thereby increasing the temperature of the untreated exhaust gas and combustion air, avoiding a sharp drop in the temperature in the incineration chamber, and reducing the use of fuel gas while ensuring a suitable temperature for exhaust gas treatment, thereby saving fuel resources; the intercepting effect of the first deflector prolongs the contact time of the high-temperature gas with the heat exchange shell, making the contact between the high-temperature gas and the heat exchange shell more uniform, thereby ensuring that the heat exchange shell fully absorbs the heat of the high-temperature gas; the first connecting pipe and the second connecting pipe are staggered, so that the mixed gas outlet pipe discharges the combustion air and the untreated exhaust gas into the incineration chamber in an alternating manner, thereby improving the mixing effect of the combustion air and the untreated exhaust gas, thereby ensuring that the temperature of the gas entering the incineration chamber is more uniform; the untreated exhaust gas and the combustion air are mixed by the second deflector The drainage effect of the gas increases the time for the two to pass through the heat exchange shell, so that the two are in full contact with the heat exchange shell, thereby ensuring that the two fully absorb the heat of the heat exchange shell. By spirally arranging the second baffle, the untreated exhaust gas and the combustion air are mixed during the movement, thereby ensuring that the respective temperatures of the two are more uniform; the up and down flow guidance effect of the converging plate is further improved, and the mixing effect of the combustion air and the untreated exhaust gas is further improved; the mixed gas is further fused by the spoiler, and the uniformity of the gas temperature entering the incineration chamber is further improved, thereby increasing the speed of temperature rise in the incineration chamber and accelerating the exhaust gas processing speed; the spoiler changes the falling angle of the high-temperature gas, thereby disrupting the movement direction of the high-temperature gas and increasing the contact area between the high-temperature gases, thereby improving the mixing degree of the high-temperature gas and making the temperature of the high-temperature gas more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a sectional view of the three-dimensional structure of the outer cylinder, inner cylinder and combustion chamber of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat exchange shell, air outlet pipe, fixing ring and other parts of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the outer cylinder and the air outlet pipe connected to each other in the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the heat exchange shell and the bottom plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the heat exchange shell and the fixing ring of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing ring, partition and other parts of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the heat exchange shell and the partition plate of the present invention.

[0025] Figure 9 It is a schematic diagram of the three-dimensional structure of the first connecting pipe, the second connecting pipe and other parts of the present invention.

[0026] Figure 10 It is a schematic diagram of the three-dimensional structure of the second air inlet pipe, the second exhaust gas inlet pipe and other parts of the present invention.

[0027] Figure 11 It is a schematic diagram of the three-dimensional structure of the mixed gas outlet pipe and the partition plate of the present invention.

[0028] Figure 12 It is a schematic diagram of the three-dimensional structure of the heat exchange shell and the first baffle of the present invention.

[0029] Figure 13 It is a schematic diagram of the three-dimensional structure of the heat exchange shell and the second baffle of the present invention.

[0030] Figure 14 It is a schematic diagram of the three-dimensional structure of the heat exchange shell, the first connecting pipe and the second connecting pipe according to the present invention.

[0031] Figure 15 It is a schematic diagram of the three-dimensional structure of the heat exchange shell, partition and inner cylinder of the present invention.

[0032] Figure 16 It is a schematic diagram of the three-dimensional structure of the mixed gas outlet pipe and the confluence pipe of the present invention.

[0033] Figure 17 It is a schematic diagram of the three-dimensional structure of the confluence pipe, spoiler and other parts of the present invention.

[0034] Figure 18 It is a schematic diagram of the three-dimensional structure of the spoiler frame, diverter seat and other parts of the present invention.

[0035] In the figure: 101-outer tube, 102-inner tube, 103-incineration chamber, 104-bottom plate, 105-first tail gas inlet pipe, 106-fuel inlet pipe, 107-first air inlet pipe, 108-heat exchange shell, 109-air outlet pipe, 110-fixed ring, 111-partition, 112-first connecting pipe, 113-second connecting pipe, 114-second air inlet pipe, 115-second tail gas inlet pipe, 116-mixed gas outlet pipe, 201-first baffle, 301-second baffle, 401-merging pipe, 402-merging plate, 403-spoiler, 501-spoiler frame, 502-diverter seat. DETAILED DESCRIPTION

[0036] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those skilled in the art will recognize that terms such as "above," "below," "upwardly," "downwardly," and the like are used to describe the drawings and are not intended to limit the scope of the present invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0037] Example 1: An energy-saving and environmentally friendly sulfur tail gas incinerator, such as Figures 1-11 、 Figure 14 and Figure 15As shown, it includes an outer cylinder 101, an inner cylinder 102 is fixedly connected to the outer cylinder 101, an ignition device for igniting gas is installed in the inner cylinder 102, the inner cylinder 102 is provided with an annular groove for circulating gas, and an incineration chamber 103 for treating tail gas is provided in the inner cylinder 102. The bottom of the outer cylinder 101 is provided with a bottom plate 104, and the bottom plate 104 is a cylindrical shell. The top of the inner cylinder 102 is connected with a first tail gas inlet pipe 105, a fuel inlet pipe 106 and a first air inlet pipe 107. The first tail gas inlet pipe 105 is used to inject untreated tail gas into the incineration chamber 103, the fuel inlet pipe 106 is used to inject fuel gas into the incineration chamber 103, and the first air inlet pipe 107 is used to inject combustion-supporting gas into the incineration chamber 103. The air inlet pipe 105, the fuel inlet pipe 106 and the first air inlet pipe 107 are all connected to the incineration chamber 103. The bottom plate 104 is fixed with a plurality of circumferentially distributed heat exchange shells 108. The interior of the heat exchange shell 108 is a cavity for circulating untreated exhaust gas and combustion-supporting gas. The heat exchange shell 108 is fixed to the inner cylinder 102 and the outer cylinder 101. The lower part of the outer side of the outer cylinder 101 is connected with an air outlet pipe 109. The air outlet pipe 109 is used to discharge the gas after the exhaust gas treatment is completed. The gap between adjacent heat exchange shells 108 is connected with the air outlet pipe 109. The lower side of the inner cylinder 102 is fixed with a fixing ring 110. The fixing ring 110 is provided with a plurality of circumferentially distributed through holes for circulating gas. The through holes on the fixing ring 110 are connected to the adjacent heat exchange shells 1 08 is connected, and a plurality of circumferentially distributed partitions 111 are fixed between two adjacent through holes of the fixing ring 110. The partition 111 is fixed to the top of the inner tube 102. The gap between adjacent partitions 111 is connected to the adjacent heat exchange shell 108 through the through hole of the fixing ring 110. The fixing ring 110 is used to ensure the sealing between the gap between the two adjacent partitions 111 and the heat exchange shell 108. The outer tube 101 is connected with a plurality of circumferentially distributed first connecting pipes 112, and the outer tube 101 is connected with a plurality of circumferentially distributed second connecting pipes 113. The plurality of first connecting pipes 112 and the plurality of second connecting pipes 113 are staggered, so that the gas in the first connecting pipe 112 and the gas in the second connecting pipe 113 are mixed in the incineration chamber 103. The inner sides of the circumferentially distributed first communicating tubes 112 and the circumferentially distributed second communicating tubes 113 are respectively connected to the adjacent heat exchange shells 108. The outer side of the circumferentially distributed first communicating tubes 112 is connected to a second air inlet pipe 114, which is used to inject combustion-supporting gas into the incineration chamber 103. The lower side of the circumferentially distributed second communicating tubes 113 is connected to a second exhaust gas inlet pipe 115, which is used to inject untreated exhaust gas into the incineration chamber 103. The inner tube 102 is connected to a plurality of circumferentially distributed mixed gas outlet pipes 116, which are used to discharge gas into the incineration chamber 103. The gaps between adjacent partitions 111 are connected to the adjacent mixed gas outlet pipes 116.The first exhaust gas inlet pipe 105, the fuel inlet pipe 106, the first air inlet pipe 107, the second air inlet pipe 114 and the second exhaust gas inlet pipe 115 are all equipped with solenoid valves.

[0038] like Figure 12 As shown, a first baffle 201 is fixed between two adjacent heat exchange shells 108. The first baffle 201 is spiral-shaped and is used to increase the contact area with the adjacent heat exchange shells 108 and prolong the time for the gas to flow through the adjacent heat exchange shells 108, so that the gas is in uniform contact with the adjacent heat exchange shells 108.

[0039] like Figure 13 As shown, the heat exchange shell 108 is provided with a second baffle 301, which is spiral-shaped. The second baffle 301 is used to increase the time for gas to pass through the heat exchange shell 108 and increase the contact area with the adjacent heat exchange shell 108, so that the heat exchange shell 108 is evenly heated.

[0040] like Figure 16 and Figure 17 As shown, two adjacent mixed gas outlet pipes 116 are commonly fixedly connected to a merging pipe 401 for fusing untreated exhaust gas and combustion-supporting air. The merging pipe 401 is fixedly connected to a merging plate 402 for further fusing the above two gases. The merging plate 402 is composed of three horizontal plates distributed at equal intervals and four vertical plates distributed at equal intervals. The outer sides of the two adjacent vertical plates are opposite to each other. The merging pipe 401 is fixedly connected to a spoiler 403. The spoiler 403 is located on the inner side of the merging plate 402. The spoiler 403 is used to further mix the gas in the merging pipe 401 and change the direction of gas flow.

[0041] When using this device, the staff first opens the solenoid valves of the first exhaust gas inlet pipe 105, the fuel inlet pipe 106 and the first air inlet pipe 107, and then the exhaust gas enters the incineration chamber 103 of this device through the first exhaust gas inlet pipe 105, the fuel gas enters the incineration chamber 103 through the fuel inlet pipe 106, and the combustion-supporting gas enters the incineration chamber 103 through the first air inlet pipe 107. When all three gases enter the incineration chamber 103, the staff turns on the ignition device to allow the gas in the incineration chamber 103 to burn, and this device begins to process the exhaust gas. At this time, the flow rate of the fuel gas of the solenoid valve of the fuel inlet pipe 106 is the initial flow rate.

[0042] During the process of exhaust gas treatment by the present device, under the condition of continuous supply of fuel gas and combustion-supporting gas, the temperature in the incineration chamber 103 rises and the exhaust gas is completely burned. The high temperature and chemical reaction generated by the exhaust gas during the combustion process can convert harmful substances in the exhaust gas into harmless substances. During this process, the first exhaust gas inlet pipe 105, the fuel inlet pipe 106 and the first air inlet pipe 107 all continuously add gas to the incineration chamber 103. The treated exhaust gas flows downward to the upper side of the bottom plate 104 due to the squeezing of the untreated gas above the incineration chamber 103, and then the gas below flows from the bottom plate 104 to both sides, and then the gas below the incineration chamber 103 is squeezed into the gap between the two adjacent heat exchange shells 108.

[0043] In the process of the treated high-temperature gas passing through the gap between two adjacent heat exchange shells 108, the high-temperature gas spirally flows around the first baffle 201 between the adjacent heat exchange shells 108. During the movement of the high-temperature gas, due to the interception effect of the first baffle 201, the contact time of the high-temperature gas and the heat exchange shell 108 is extended, making the contact between the high-temperature gas and the heat exchange shell 108 more uniform, thereby ensuring that the heat exchange shell 108 fully absorbs the heat of the high-temperature gas. Subsequently, the high-temperature gas flowing through the gap between the two adjacent heat exchange shells 108 enters the air outlet pipe 109 and is discharged outside the device.

[0044] After the device has processed the exhaust gas for a period of time, the temperature inside the device gradually increases, and at the same time, the temperature of several heat exchange shells 108 also gradually increases. Then the staff closes the solenoid valves of the first exhaust gas inlet pipe 105 and the first air inlet pipe 107, and opens the solenoid valves of the second air inlet pipe 114 and the second exhaust gas inlet pipe 115. At this time, untreated exhaust gas and combustion-supporting air enter the device from the second air inlet pipe 114 and the second exhaust gas inlet pipe 115. At the same time, the staff adjusts the flow rate of the solenoid valve of the fuel inlet pipe 106 to be less than the initial flow rate. Then the untreated exhaust gas flows from the second exhaust gas inlet pipe 115 through the second connecting pipe 113 into the adjacent heat exchange shell 108.

[0045] After the solenoid valves of the second air inlet pipe 114 and the second exhaust gas inlet pipe 115 are opened, the combustion air flows through the first connecting pipe 112, and the untreated exhaust gas flows through the second connecting pipe 113 at the same time. By staggering the first connecting pipe 112 and the second connecting pipe 113, the mixed gas outlet pipe 116 discharges the combustion air and the untreated exhaust gas alternately into the incineration chamber 103, thereby improving the mixing effect of the combustion air and the untreated exhaust gas, thereby ensuring that the temperature of the gas entering the incineration chamber 103 is more uniform.

[0046] In the process of untreated exhaust gas and combustion air entering the device from below, treated high-temperature gas flows between the two adjacent heat exchange shells 108. At the same time, the heat exchange shell 108 absorbs the heat of the high-temperature gas, making the heat exchange shell 108 in a high-temperature state. In the process of untreated exhaust gas and combustion air flowing through the heat exchange shell 108, both absorb the heat of the heat exchange shell 108 and the high-temperature gas between the two adjacent heat exchange shells 108. Therefore, the temperature of the untreated exhaust gas and combustion air themselves gradually increases.

[0047] In the process of untreated exhaust gas and combustion air passing through the heat exchange shell 108, the untreated exhaust gas moves in a spiral along the second baffle 301, first flowing upward in a spiral and then spirally downward from the heat exchange shell 108, and the combustion air moves synchronously along the adjacent second baffle 301. The second baffle 301 has a drainage effect on the untreated exhaust gas and combustion air, which increases the time they take to pass through the heat exchange shell 108, allowing them to fully contact the heat exchange shell 108, thereby ensuring that they fully absorb the heat of the heat exchange shell 108. By spirally setting the second baffle 301, the untreated exhaust gas and combustion air are mixed during their movement, thereby ensuring that their respective temperatures are more uniform.

[0048] Subsequently, the untreated exhaust gas in the heat exchange shell 108 flows through the gap between the two adjacent partitions 111 and the mixed gas outlet pipe 116 through the fixed ring 110 and enters the incineration chamber 103. In the process of the untreated exhaust gas entering the present device, the combustion air flows from the second air inlet pipe 114 through the first connecting pipe 112, the heat exchange shell 108, the gap between the two adjacent partitions 111 and the mixed gas outlet pipe 116 and finally enters the incineration chamber 103. The combustion air and untreated exhaust gas entering the incineration chamber 103 come into contact with the fuel gas entering from the fuel inlet pipe 106, and the untreated exhaust gas is purified by high temperature. Subsequently, the treated high-temperature gas flows downward and is discharged outside the present device through the gap between the two adjacent heat exchange shells 108.

[0049] After the combustion air and untreated exhaust gas pass through the mixed gas outlet pipe 116, the combustion air and untreated exhaust gas are mixed into a mixed gas and enter the merging pipe 401. In the process of the mixed gas passing through the merging pipe 401, the mixed gas flows through the merging plate 402. The upper and lower guiding functions of the merging plate 402 further improve the mixing effect of the combustion air and the untreated exhaust gas. After the mixed gas passes through the merging plate 402, the mixed gas passes through the spoiler 403. The spoiler 403 further merges the mixed gas, further improving the uniformity of the gas temperature entering the incineration chamber 103, thereby increasing the temperature rise rate in the incineration chamber 103 and accelerating the exhaust gas processing speed.

[0050] When the untreated exhaust gas and combustion air with increased temperature enter the incineration chamber 103, the fuel gas entering from the fuel inlet pipe 106 contacts the untreated exhaust gas and combustion air. Since the untreated exhaust gas and combustion air have a certain temperature, the temperature in the incineration chamber 103 will not drop significantly. Therefore, under the high temperature condition of ensuring exhaust gas treatment, the temperature required to be increased in the incineration chamber 103 is reduced, so the amount of fuel gas required for the incineration chamber 103 is reduced. By transferring the heat of the heat exchange shell 108 itself to the untreated exhaust gas and combustion air, the temperature of the untreated exhaust gas and combustion air is increased, and a sharp drop in temperature in the incineration chamber 103 is avoided. Under the premise of ensuring the appropriate temperature for exhaust gas treatment, the use of fuel gas is reduced and fuel resources are saved.

[0051] After the exhaust gas treatment is completed, the staff closes the electromagnetic valves of the second air inlet pipe 114, the second exhaust gas inlet pipe 115 and the fuel inlet pipe 106, and ends the use of the device.

[0052] Example 2: Based on Example 1, Figure 2 and Figure 18 As shown, a spoiler frame 501 is fixedly connected to the middle and lower part of the inner tube 102. The spoiler frame 501 consists of seven twisted horizontal plates and seven twisted vertical plates. The spoiler frame 501 is used to mix the treated gas in the incineration chamber 103 and change the flow direction of the gas. A diverter seat 502 is fixedly connected to the bottom of the bottom plate 104. The middle part of the diverter seat 502 is conical and is used to guide the gas to the outside. The upper surface of the diverter seat 502 is an arc surface and is used to guide the gas upward. The diverter seat 502 is used to disperse the gas in the incineration chamber 103.

[0053] During the downward movement of the processed high-temperature gas in the incineration chamber 103, when the high-temperature gas contacts the spoiler 501, the spoiler 501 changes the angle at which the high-temperature gas falls, thereby disrupting the movement direction of the high-temperature gas and increasing the contact area between the high-temperature gases, thereby improving the mixing degree of the high-temperature gas and making the temperature of the high-temperature gas more uniform.

[0054] After the high-temperature gas passes through the spoiler 501, as the high-temperature gas moves downward, when the high-temperature gas contacts the diverter seat 502, due to the guiding effect of the conical block in the middle of the diverter seat 502, the diverter seat 502 will divert the high-temperature gas moving downward along the upper side surface of the diverter seat 502 to the outside. In the process of the high-temperature gas moving along the upper side surface of the diverter seat 502, since the outer side of the upper side surface of the diverter seat 502 is arc-shaped, the diverter seat 502 will divert the high-temperature gas moving to the outside upward. Through the diversion of the high-temperature gas by the diverter seat 502, the speed of the high-temperature gas entering the gap between the adjacent heat exchange shells 108 is accelerated, the situation where the high-temperature gas remains in the incineration chamber 103 is reduced, and the efficiency of the exhaust gas treatment is further improved.

[0055] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An energy-saving and environmentally friendly sulfur tail gas incinerator, characterized by: The invention comprises an outer tube (101), the outer tube (101) is fixedly connected to an inner tube (102), an ignition device for igniting gas is installed in the inner tube (102), an incineration chamber (103) is provided in the inner tube (102), the outer tube (101) is provided with a bottom plate (104), the top of the inner tube (102) is fixedly connected to a first tail gas inlet pipe (105), a fuel inlet pipe (106) and a first air inlet pipe (107) which are in communication with the incineration chamber (103), the bottom plate (104), the inner tube (102) and the outer tube (101) are fixedly connected to a circumferentially distributed heat exchange shell (108), the outer tube (101) is connected to an air outlet pipe (109), the gap between adjacent heat exchange shells (108) is in communication with the air outlet pipe (109), the inner tube (102) is fixedly connected to a fixing ring (110), and the fixing ring (110) is provided with a heat exchange shell (108) which is in communication with the adjacent heat exchange shell (108). The through hole, the fixing ring (110) and the inner cylinder (102) are fixedly connected with circumferentially distributed partitions (111), the gaps between adjacent partitions (111) are connected with the adjacent heat exchange shells (108), the outer cylinder (101) is fixedly connected with a circumferentially distributed first connecting pipe (112) and a circumferentially distributed second connecting pipe (113) connected with the adjacent heat exchange shells (108), the circumferentially distributed first connecting pipe (112) is connected with a second air inlet pipe (114), the circumferentially distributed second connecting pipe (113) is connected with a second exhaust gas inlet pipe (115), the inner cylinder (102) is fixedly connected with a mixed gas outlet pipe (116) connected with the gaps between adjacent partitions (111), and the first exhaust gas inlet pipe (105), the fuel inlet pipe (106), the first air inlet pipe (107), the second air inlet pipe (114) and the second exhaust gas inlet pipe (115) are all installed with solenoid valves; A first baffle (201) is fixedly connected between adjacent heat exchange shells (108), and the first baffle (201) is used to prolong the time for gas to flow through adjacent heat exchange shells (108); The first baffle (201) is spiral-shaped and is used to increase the contact area with the adjacent heat exchange shell (108); The heat exchange shell (108) is provided with a second baffle (301), and the second baffle (301) is used to increase the time for the gas to pass through the heat exchange shell (108); The second deflector (301) is spiral-shaped and is used to ensure uniform contact between the gas and the adjacent heat exchange shell (108).

2. The energy-saving and environmentally friendly sulfur tail gas incinerator according to claim 1, characterized in that: The circumferentially distributed first connecting tubes (112) and the circumferentially distributed second connecting tubes (113) are staggered, facilitating mixing of the gas in the first connecting tubes (112) and the gas in the second connecting tubes (113).

3. The energy-saving and environmentally friendly sulfur tail gas incinerator according to claim 1, characterized in that: Adjacent mixed gas outlet pipes (116) are fixedly connected to a common merging pipe (401), and the merging pipe (401) is fixedly connected to a merging plate (402).

4. The energy-saving and environmentally friendly sulfur tail gas incinerator according to claim 3 is characterized in that: The confluence pipe (401) is fixedly connected with a spoiler (403), and the spoiler (403) is used to mix the gas flowing through the confluence pipe (401).

5. The energy-saving and environmentally friendly sulfur tail gas incinerator according to claim 1, characterized in that: The inner cylinder (102) is fixedly connected with a spoiler frame (501), and the spoiler frame (501) is used to mix the treated gas in the incineration chamber (103).

6. The energy-saving and environmentally friendly sulfur tail gas incinerator according to claim 1, characterized in that: The bottom plate (104) is fixedly connected with a diverter seat (502), the middle portion of the diverter seat (502) is conical, and the diverter seat (502) is used to disperse the gas in the combustion chamber (103).

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