Novel burner for sulfur recovery device

Abstract

The utility model relates to the technical field of combustors, and discloses a novel combustor for a sulfur recovery device, which comprises a combustor body mounted and connected on a combustion furnace, and is characterized in that a combustion furnace interface is mounted at one end, close to the combustion furnace, of the combustor body; a burning torch connector, a fuel gas pipe connector and an oxygen pipe connector are installed at the end, away from the burning furnace, of the burner body, a flame detector connector is installed on the periphery of the burner body and connected with a flame detector, and a high-strength fire-resistant lining is attached to the inner wall of the burner body. According to the utility model, the jet flow form is changed, so that the gas mixing effect and the elemental sulfur generation amount in the burner are obviously improved, and the burner also has the advantages of stable combustion and full utilization of oxygen, and accords with the concept of energy conservation and environmental protection.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a new type of burner used in a sulfur recovery device. Background Art

[0002] In the Claus sulfur recovery process, efficient mixing of gases in the main combustion furnace is an important guarantee for achieving strong combustion in the furnace. The burner is the core component of the main combustion furnace. The burner generally uses air as a combustion aid, and the oxygen content in the air actually used for combustion is about 21%. Other component gases do not participate in the reaction and are integrated into the process gas, resulting in an increase in the process gas volume. In order to reduce the process gas volume and ensure that the acid gas can fully burn and react, pure oxygen can be used as the process gas.

[0003] The existing burner structure can basically achieve powerful combustion of the gas in the furnace by using pure oxygen as the process gas. However, in the actual operation of the burner, it is found that when the acid gas is introduced into the combustion furnace to mix with oxygen, due to the high speed of the two air flows, air turbulence will be formed after entering the burner, resulting in the acid gas being unable to be fully mixed with oxygen, resulting in low oxygen utilization during subsequent combustion and insufficient reaction of the acid gas.

[0004] Existing, for this reason, we propose a new type of burner for sulfur recovery unit. Utility Model Content

[0005] The utility model aims to provide a new type of burner for a sulfur recovery device to solve the problem in the above background technology that when acid gas and oxygen are introduced into the burner, turbulence will occur and they cannot be fully mixed, resulting in the subsequent oxygen cannot be fully utilized and the acid gas reaction is not thorough enough.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of burner for a sulfur recovery device, comprising a burner body installed and connected to a combustion furnace, a combustion furnace interface installed at one end of the burner body close to the combustion furnace, and an ignition gun joint, a fuel gas pipe joint and an oxygen pipe joint installed at one end of the burner body away from the combustion furnace, a flame detector interface installed on the outer periphery of the burner body, and the flame detector interface is connected to a flame detector, and a high-strength refractory lining is attached to the inner wall of the burner body;

[0007] An acid gas connector is installed above the outer periphery of the burner body, and a full mixing component is installed between the inner side of the acid gas connector and the end of the burner body away from the combustion furnace to change the flow trajectory of the acid gas and oxygen to allow them to be fully mixed.

[0008] Preferably, the fully mixing assembly comprises a threaded ring screwed on the inner circumference of the acid gas connector, the end of the threaded ring is connected to an acid gas conduit, and the end of the acid gas conduit is connected to an acid gas guide ring, an acid gas annular tube is fixed to the inner circumference of the acid gas guide ring, and a drainage seat is fixed to the inner circumference of the acid gas annular tube, a hollow ring is fixed to the inner circumference of the drainage seat, and an oxygen conduit connected to the oxygen pipe joint is arranged inside the hollow ring;

[0009] The drainage seat is configured with an acid gas outlet near one end of the combustion furnace, a plurality of right-angle partitions are fixed between the inner periphery of the acid gas annular tube and the end of the drainage seat, and a toggle mechanism extending between adjacent right-angle partitions inside the acid gas annular tube is installed on the outer periphery of the oxygen conduit.

[0010] Preferably, the toggle mechanism includes a fixed block fixed to the outer periphery of the oxygen conduit, and the side wall of the fixed block is rotatably provided with a telescopic rod whose end extends to the inside of the hollow ring, and the end of the telescopic rod is rotatably connected to an adjustment plate, and the adjustment plate is rotatably installed between the parallel side walls of adjacent right-angle partitions.

[0011] Preferably, the side cross-section of the oxygen conduit is conical, and a conical ring is fixed to the inner circumference of the oxygen conduit through a bracket, a guide seat is installed at the end of the conical ring, and an arc-shaped guide groove is constructed on the outer circumference of the guide seat.

[0012] Preferably, the number of the flame detector interfaces is set to two, and the two flame detector interfaces are respectively located at the periphery of the burner body connected to the combustion furnace and the outer wall of one end of the burner body close to the ignition gun joint.

[0013] Preferably, a mirror interface is provided on the burner body, and a mirror observation port is provided on the mirror interface.

[0014] Preferably, two sight glass interfaces are provided, and the two sight glass interfaces are respectively located on the peripheral wall where the burner body is connected to the combustion furnace and on the side wall of the burner body close to the ignition gun joint.

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

[0016] 1. The utility model provides a sufficient mixing component. When acid gas and oxygen are introduced into the burner body at the same time, the acid gas can be guided to flow obliquely from the outside of the oxygen gas to the oxygen gas, so that the acid gas and oxygen are fully mixed. This can not only effectively improve the utilization rate of oxygen in subsequent combustion, but also allow the acid gas to fully react with the oxygen for combustion, thereby improving the quality of acid gas treatment.

[0017] 2. The utility model is provided with a toggle mechanism, which can change the flow direction of the acid gas through the toggle mechanism when the pressure in the acid gas tank decreases, thereby changing the contact angle between the acid gas flow and the oxygen flow, thereby ensuring the mixing effect with oxygen when the acid gas flow velocity and flow rate change, and adapting to the use requirements of different working conditions and combustion scenarios.

[0018] 3. The utility model provides a flame detector interface and a flame detector, which can monitor the flame online through the flame detector, further ensuring the safety of the equipment and facilitating all-round monitoring of the ignition and combustion conditions.

[0019] 4. The utility model is provided with a mirror interface, which allows on-site inspection through the mirror observation port, making it convenient to observe the ignition condition and the combustion condition respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fully mixing component of the utility model;

[0022] Figure 3 This is a cross-sectional view of the acid gas guide ring of the utility model;

[0023] Figure 4 It is a cross-sectional view of the oxygen conduit of the utility model.

[0024] In the figure: 1. burner body; 2. ignition gun joint; 3. fuel gas pipe joint; 4. oxygen pipe joint; 5. flame detector interface; 6. acid gas connector; 61. threaded ring; 62. acid gas conduit; 63. acid gas guide ring; 64. acid gas annular pipe; 65. drainage seat; 651. acid gas outlet; 66. right-angle partition; 67. hollow ring; 68. oxygen conduit; 681. telescopic rod; 682. fixing block; 683. bracket; 684. conical ring; 685. guide seat; 686. guide groove; 69. adjustment plate; 7. sight glass interface; 8. combustion furnace interface; 9. refractory lining. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] See also Figure 1-Figure 4A new type of burner for a sulfur recovery device shown in the figure comprises a burner body 1 installed and connected to a combustion furnace, a combustion furnace interface 8 is installed at one end of the burner body 1 close to the combustion furnace, and an ignition gun joint 2, a fuel gas pipe joint 3 and an oxygen pipe joint 4 are installed at one end of the burner body 1 away from the combustion furnace, a flame detector interface 5 is installed on the outer periphery of the burner body 1, and the flame detector interface 5 is connected to a flame detector, a high-strength refractory lining 9 is attached to the inner wall of the burner body 1, an acid gas connector 6 is installed above the outer periphery of the burner body 1, and a full mixing component is installed between the inner side of the acid gas connector 6 and the end of the burner body 1 away from the combustion furnace, which changes the flow trajectory of acid gas and oxygen to make them fully mixed, oxygen enters the inner side of the full mixing component through the oxygen pipe joint 4, and the oxygen flow trajectory coincides with the central axis of the full mixing component, the acid gas enters the full mixing component through the acid gas conduit 62, and flows from the outer side of the central axis of the full mixing component to the central axis in an inclined state, so that the acid gas is evenly in contact with the oxygen from the outer side of the oxygen, and the acid gas and oxygen are fully mixed without generating turbulence.

[0028] Further, the fully mixing component includes a threaded ring 61 screwed on the inner circumference of the acid gas connector 6, the end of the threaded ring 61 is connected to the acid gas conduit 62, and the end of the acid gas conduit 62 is connected to the acid gas guide ring 63, the inner circumference of the acid gas guide ring 63 is fixed with an acid gas annular tube 64, and the inner circumference of the acid gas annular tube 64 is fixed with a drainage seat 65, the inner circumference of the drainage seat 65 is fixed with a hollow ring 67, and the inner side of the hollow ring 67 is provided with an oxygen conduit 68 connected to the oxygen pipe joint 4, the acid gas enters the inner side of the drainage seat 65 through the acid gas connector 6, the threaded ring 61, the acid gas conduit 62, the acid gas guide ring 63 and the acid gas annular tube 64, and flows toward the acid gas outlet 651 side in the space formed by the drainage seat 65, the acid gas annular tube 64 and the hollow ring 67;

[0029] An acid gas outlet 651 is constructed near one end of the combustion furnace at the drainage seat 65, and a plurality of right-angle partitions 66 are fixed between the inner periphery of the acid gas annular tube 64 and the end of the drainage seat 65. A toggle mechanism extending between adjacent right-angle partitions 66 on the inner side of the acid gas annular tube 64 is installed on the outer periphery of the oxygen conduit 68. When the acid gas flows to the acid gas outlet 651 side and flows out from the acid gas outlet 651 side, the contact angle between the acid gas gas flow and the oxygen gas flow can be changed by the toggle mechanism according to the acid gas flow rate and flow rate, so as to ensure sufficient mixing of the acid gas and oxygen when the acid gas flow rate and flow rate change.

[0030] Furthermore, the toggle mechanism includes a fixed block 682 fixed to the outer periphery of the oxygen conduit 68, and a telescopic rod 681 with an end extending to the inside of the hollow ring 67 is rotatably provided on the side wall of the fixed block 682, and the end of the telescopic rod 681 is rotatably connected to the adjustment plate 69, and the adjustment plate 69 is rotatably installed between the parallel side walls of adjacent right-angle partitions 66. When the telescopic rod 681 is extended or retracted, its two ends are respectively located between the fixed block 682 and the end of the adjustment plate 69 and rotate relative to each other, thereby changing the angle of the adjustment plate 69, so that the contact angle between the acid gas flow and the oxygen flow is correspondingly adjusted after the acid gas flow rate and flow velocity change.

[0031] Furthermore, the side cross-section of the oxygen conduit 68 is conical, and a conical ring 684 is fixed to the inner periphery of the oxygen conduit 68 through a bracket 683, a guide seat 685 is installed at the end of the conical ring 684, and an arc-shaped guide groove 686 is constructed on the outer periphery of the guide seat 685. When oxygen enters the oxygen conduit 68, the cross-sectional area of ​​the oxygen gas flow is rapidly increased under the action of the conical ring 684, and when the subsequent oxygen flows out from the outer periphery of the guide seat 685 along the guide groove 686, the oxygen forms multiple gas flows, which is conducive to the subsequent full contact and mixing with the acid gas.

[0032] Furthermore, the number of flame detector interfaces 5 is set to two, and the two flame detector interfaces 5 are respectively located on the periphery of the burner body 1 connected to the combustion furnace and the outer wall of one end of the burner body 1 close to the ignition gun joint 2. A sight glass interface 7 is provided on the burner body 1, and a sight glass observation port is provided on the sight glass interface 7. There are two sight glass interfaces 7, and the two sight glass interfaces 7 are respectively located on the peripheral wall of the burner body 1 connected to the combustion furnace and on the side wall of the burner body 1 close to the ignition gun joint 2. The flame can be monitored by the flame detector and can also be viewed on site through the sight glass observation port. If the flame is extinguished and the flame detector does not detect the flame, the fuel gas, acid gas and oxygen are cut off manually or through an external program to ensure the safety of the equipment. Ball valves are provided on the flame detector interface 5 and the sight glass interface 7 to ensure that the flame detector or sight glass can be replaced when the burner is in operation.

[0033] It should be noted that the utility model is a new type of burner for a sulfur recovery device. Before use, the acid gas connector 6 is connected to the acid gas tank or acid gas storage device, and the oxygen tank is connected to the oxygen pipe connector 4. Oxygen enters the oxygen conduit 68 in the fully mixed component through the oxygen pipe connector 4. Then, under the action of the conical ring 684, the oxygen gas flow column forms an oxygen gas flow ring, and the gas flow cross section is significantly increased. The oxygen flows out of the oxygen conduit 68 through the guide groove 686 of the guide seat 685 to form multiple fine gas flow columns. The acid gas passes through the acid gas connector 6 and the threaded ring. 61, the acid gas conduit 62, the acid gas guide ring 63 and the acid gas annular tube 64 enter the inner side of the drainage seat 65, and flow toward the acid gas outlet 651 in the space formed by the drainage seat 65, the acid gas annular tube 64 and the hollow ring 67. The toggle mechanism is adjusted in advance according to numerical values ​​such as the flow rate or flow rate of the acid gas. After the telescopic rod 681 is contracted, the adjustment plate 69 is adjusted to a suitable angle. When the acid gas flows out from the acid gas outlet 651, it flows toward the oxygen gas flow column at a set angle, fully contacts and mixes with the oxygen gas flow column, and after the oxygen is ignited, the acid gas is fully burned to finally generate elemental sulfur.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel burner for a sulfur recovery device, comprising a burner body (1) mounted on a combustion furnace, characterized in that: The burner body (1) is provided with a burner interface (8) at one end close to the burner, and an ignition gun joint (2), a fuel gas pipe joint (3) and an oxygen pipe joint (4) are provided at one end of the burner body (1) away from the burner. A flame detector interface (5) is provided on the outer periphery of the burner body (1), and the flame detector interface (5) is connected to a flame detector. A high-strength refractory lining (9) is attached to the inner wall of the burner body (1); An acid gas connector (6) is installed above the outer periphery of the burner body (1), and a full mixing component is installed between the inner side of the acid gas connector (6) and the end of the burner body (1) away from the combustion furnace to change the flow trajectory of the acid gas and oxygen so that they are fully mixed.

2. A novel burner for a sulfur recovery device according to claim 1, characterized in that: The fully mixing assembly comprises a threaded ring (61) screwed onto the inner circumference of the acid gas connector (6), the end of the threaded ring (61) is connected to an acid gas conduit (62), and the end of the acid gas conduit (62) is connected to an acid gas guide ring (63), an acid gas annular tube (64) is fixed to the inner circumference of the acid gas guide ring (63), and a drainage seat (65) is fixed to the inner circumference of the acid gas annular tube (64), a hollow ring (67) is fixed to the inner circumference of the drainage seat (65), and an oxygen conduit (68) connected to the oxygen pipe connector (4) is arranged inside the hollow ring (67); The drainage seat (65) is provided with an acid gas outlet (651) near one end of the combustion furnace, a plurality of right-angle partitions (66) are fixed between the inner periphery of the acid gas annular tube (64) and the end of the drainage seat (65), and a toggle mechanism extending between adjacent right-angle partitions (66) inside the acid gas annular tube (64) is installed on the outer periphery of the oxygen conduit (68).

3. A novel burner for a sulfur recovery device according to claim 2, characterized in that: The toggle mechanism comprises a fixed block (682) fixed to the outer periphery of the oxygen conduit (68), and a telescopic rod (681) whose end extends to the inside of the hollow ring (67) is rotatably provided on the side wall of the fixed block (682), and the end of the telescopic rod (681) is rotatably connected to an adjustment plate (69), and the adjustment plate (69) is rotatably installed between the parallel side walls of adjacent right-angle partitions (66).

4. A novel burner for a sulfur recovery device according to claim 3, characterized in that: The oxygen conduit (68) has a conical cross-section when viewed from the side, and a conical ring (684) is fixed to the inner periphery of the oxygen conduit (68) via a bracket (683), a flow guide seat (685) is installed at the end of the conical ring (684), and an arc-shaped flow guide groove (686) is constructed on the outer periphery of the flow guide seat (685).

5. A novel burner for a sulfur recovery device according to claim 1, characterized in that: The number of the flame detector interfaces (5) is set to two, and the two flame detector interfaces (5) are respectively located at the periphery of the burner body (1) connected to the combustion furnace and at the outer wall of one end of the burner body (1) close to the ignition gun joint (2).

6. A novel burner for a sulfur recovery device according to claim 1, characterized in that: The burner body (1) is provided with a sight glass interface (7), and the sight glass interface (7) is provided with a sight glass observation port.

7. A novel burner for a sulfur recovery device according to claim 6, characterized in that: Two sight glass interfaces (7) are provided, and the two sight glass interfaces (7) are respectively located on a peripheral wall of the burner body (1) connected to the combustion furnace and on a side wall of the burner body (1) close to the ignition gun joint (2).

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