A waste incinerator burner

Abstract

The application discloses a garbage incinerator burner and belongs to the technical field of garbage incineration equipment. The propelling assembly of the burner comprises: a cylinder which is arranged outside the burner body in the propelling direction of an igniter, and the distal end of the cylinder is sealingly connected with the burner body; a moving piston is located inside the cylinder, the igniter sequentially penetrates into the proximal end of the cylinder, the moving piston and the distal end of the cylinder in the propelling direction, and then enters the burner body; an elastic member is arranged on the ignition rod of the igniter between the distal end of the cylinder and the moving piston, and is used for resetting the elastic member after stopping the supply of low-temperature gas, so that the moving piston drives the igniter to retreat from the ignition position to the initial position. The igniter enters the combustion chamber in the ignition stage and exits the combustion chamber after the ignition is completed through the low-temperature gas, the igniter can be prevented from being corroded by high temperature, the service life of the igniter is prolonged, and the high-temperature corrosion of other components in the burner can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste incineration equipment, in particular to a waste incinerator burner. BACKGROUND

[0002] The waste incineration technology has the advantages of volume reduction, harmlessness and resource utilization. In recent years, the population of cities has increased, and the production of household waste has rapidly increased. At the same time, with the improvement of people's living standards, the organic matter, combustible matter, recyclable matter and utilization value in municipal waste have all increased significantly, which has improved the calorific value of household waste and provided a prerequisite for the application and development of household waste incineration technology.

[0003] The gas generated by the incineration of household waste has the characteristics of high water content and high hydrogen chloride concentration, which has a strong corrosive effect on materials. At the same time, due to the high temperature in the incinerator, the temperature in the furnace reaches 850 DEG C before the waste can be put in. During operation, the incineration temperature in the furnace must always be maintained above 850 DEG C. The fluctuation of the calorific value of the waste is large, which is more likely to cause the high-temperature flue gas in the furnace to enter the inside of the burner in the opposite direction, causing damage to some mechanical and electrical parts, especially the ignition needle of the burner, which is long-term retention in the combustion chamber and is easily corroded by high temperature, and cannot be used normally. SUMMARY

[0004] The purpose of the present application is to overcome the problems in the prior art, and to provide a waste incinerator burner which can effectively protect the burner and the ignition needle from being corroded by high temperature.

[0005] A waste incinerator burner, comprising a burner body and an igniter, the igniter comprising an ignition transformer and an ignition rod, the ignition transformer and the ignition rod being connected by a cable, further comprising a propulsion assembly for advancing the ignition rod to an ignition position or retracting the ignition rod from the ignition position to a starting position, the propulsion assembly comprising:

[0006] A cylinder is arranged outside the burner body in the advancing direction of the igniter, the cylinder has a proximal end and a distal end, the distal end of the cylinder is sealingly connected to the burner body, and the proximal end of the cylinder is connected to a low-temperature gas supply device, a gas outlet is arranged on the side wall of the cylinder close to the distal end;

[0007] A moving piston is located inside the cylinder, the igniter sequentially passes through the proximal end of the cylinder, the moving piston and the distal end of the cylinder in the advancing direction and then enters the burner body, and the moving piston is used to move in the process of continuously increasing the pressure in the cylinder to advance the ignition end of the igniter to the ignition position;

[0008] The elastic member is arranged on the ignition rod of the igniter between the distal end of the cylinder and the moving piston, and is used to reset the elastic member after stopping the supply of low-temperature gas, so that the moving piston drives the igniter to retreat from the ignition position to the starting position.

[0009] As a preferred mode, the ignition rod of the igniter is sleeved with a sleeve along the length direction; the sleeve is communicated with the gas outlet of the cylinder through a high-temperature resistant pipeline, and a gap is reserved between the sleeve and the igniter to enable the low-temperature gas to move along the length direction of the igniter.

[0010] As a preferred mode, the burner body is provided with a high-temperature blocking door near the end of the incinerator, and a through hole for the sleeve to pass through is arranged at the position corresponding to the ignition rod of the high-temperature blocking door; the through hole is provided with a first blocking body and a second blocking body for blocking the through hole, and the first blocking body and the second blocking body are matched with the size and shape of the through hole after splicing; the high-temperature blocking door is provided with a sliding groove corresponding to the first blocking body and the second blocking body; the first blocking body and the second blocking body are both in sliding connection with the high-temperature blocking door, and the first blocking body and the second blocking body are both hinged with the sleeve through a hinge.

[0011] As a preferred mode, the high-temperature blocking door is of a hollow structure, the hinge is a pipe and is communicated with the sleeve; one end of the sliding groove away from the through hole is provided with an elastic sliding block, and a through hole communicated with the hollow structure inside the high-temperature blocking door is arranged on the side wall of the sliding groove where the elastic sliding block is located; when the first blocking body and the second blocking body move to the position where the elastic sliding block is located, the elastic sliding block is pressed, the hinge is communicated with the through hole, and the low-temperature gas enters the inside of the high-temperature blocking door.

[0012] As a preferred mode, the sleeve is a variable-diameter pipe, the diameter of the sleeve gradually decreases along the length direction of the ignition rod from the ignition end of the ignition rod to the other end, and the high-temperature resistant pipeline is connected to the side wall of the sleeve near the ignition end.

[0013] As a preferred mode, the end of the hinge connected with the sleeve is sealingly connected with the sleeve through a gas guide hose, and the hinge is hinged with the first blocking body and the second blocking body through a hollow rotating shaft, and the end of the rotating shaft is matched with the size of the through hole to enable the gas to enter the inside of the high-temperature blocking door.

[0014] As a preferred mode, the burner body is further connected with a main fuel gas injection pipeline system and a combustion-supporting gas injection pipeline system, and flow meters are arranged on the main fuel gas injection pipeline system and the combustion-supporting gas injection pipeline system.

[0015] As a preferred mode, the burner body is further connected with a cooling air pipeline system, and a cooling air pressure test unit is arranged on the cooling air pipeline system.

[0016] As a preferred mode, the burner body is further connected with an ignition gas supply pipeline, one end of the ignition gas supply pipeline is connected with the main gas injection pipeline system, and the other end is located in the burner body, and is used for providing ignition gas.

[0017] Compared with the prior art, the beneficial effects of the present application are that the present application realizes that the igniter enters the combustion chamber in the ignition stage and exits the combustion chamber after the ignition is completed by adding the propelling assembly, can avoid the high-temperature corrosion of the igniter, improves the service life of the igniter, and reduces the failure rate.

[0018] The propelling assembly of the present application adopts a pneumatic propelling mode, and the gas is a low-temperature gas. With the continuous increase of the low-temperature gas in the cylinder, the moving piston will drive the ignition rod to advance. After the ignition rod reaches the ignition position, the low-temperature air is continuously injected, so that the low-temperature air enters the inside of the burner through the gas outlet, which can reduce the temperature inside the burner and avoid the corrosion of the high-temperature gas to other parts in the burner.

[0019] The high-temperature blocking door of the present application can block most of the backflow of high-temperature gas. The perforations designed on the high-temperature blocking door can automatically open when the ignition rod advances and follow the movement of the ignition rod, and automatically block during the retraction of the ignition rod, avoiding the backflow of high-temperature gas into the burner due to large heat value fluctuation, corroding the parts of the burner and the ignition rod.

[0020] The present application also optimizes the coordinated control of the main gas injection pipeline system, the combustion-supporting gas injection pipeline system and the cooling air, ensures the smoothness of the furnace temperature curve, avoids obvious temperature fluctuations, and reduces the probability of backflow of high-temperature gas into the burner body. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The present application is a whole schematic diagram of the burner including a gas pipeline system.

[0022] Figure 2 The present application is a connection structure schematic diagram of the propelling assembly and the burner.

[0023] Figure 3 The present application is a structure schematic diagram of the perforations on the high-temperature blocking door in the open state.

[0024] Figure 4 The present application is a structure schematic diagram of the perforations on the high-temperature blocking door in the closed state.

[0025] Figure 5 The present application is a connection schematic diagram of the sleeve and the first blocking body and the second blocking body.

[0026] Figure 6Structure diagram of elastic sliding block in the sliding groove of the embodiment of the present application;

[0027] Figure 7 Temperature rising curve of the No. 1 incinerator before improvement of the present application;

[0028] Figure 8 Temperature rising curve of the No. 1 incinerator after improvement of the present application;

[0029] Figure 9 Temperature rising curve of the No. 2 incinerator before improvement of the present application;

[0030] Figure 10 Temperature rising curve of the No. 2 incinerator after improvement of the present application.

[0031] Explanation of reference signs:

[0032] 100. Burner body, 10. Main gas injection pipeline system, 11. Combustion gas injection pipeline system, 12. Cooling air pipeline system; 200. Ignition gas supply pipeline, 300. Igniter, 301. Ignition transformer, 302. Ignition rod, 400. Gas cylinder, 401. Gas outlet, 500. Moving piston, 600. Sleeve, 700. High-temperature blocking door, 701. Perforation, 702. First blocking body, 703. Second blocking body, 704. Sliding groove, 705. Elastic sliding block, 706. Through hole, 800. Hinge, 801. Gas guide hose, 900. Elastic member. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the protection scope of the present disclosure.

[0034] Unless otherwise defined, technical terms or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first", "second", and the like, as used in the specification and claims of this patent application do not denote any order, quantity, or importance, but rather are used to identify different components. The terms "include" or "comprise" and the like as used herein specify the presence of stated elements or integers or the like, but do not preclude the presence or addition of one or more other elements or integers. The terms "connected" or "coupled" or the like as used herein do not necessarily denote a direct connection or coupling, but also include an indirect connection or coupling, such as through an intermediary. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positions, and when the absolute positions of the described objects are changed, the relative positions may also be changed accordingly.

[0035] Due to the large fluctuation of the waste heat value, the high-temperature flue gas in the furnace is easily reversed into the inside of the burner, causing damage to some mechanical and electrical components, especially the ignition needle, which is long-term retained in the combustion chamber and is easily corroded by high temperature, and cannot be used normally. To this end, the present application realizes that the ignition needle is located in the combustion chamber during the ignition stage by designing a propulsion assembly, and retreats from the combustion chamber after the ignition is completed. The combustion chamber is communicated with the incinerator, a high-temperature blocking door is designed between the combustion chamber and the burner body to avoid the high-temperature gas in the combustion chamber and the incinerator from entering the inside of the burner, and to avoid the components inside the burner from being corroded by high temperature.

[0036] The ignition needle in the present application is located at the end of the ignition rod, and the propulsion and retreat of the ignition rod are realized by a pneumatic method, and the gas introduced in the present application is a low-temperature gas. The low-temperature gas in the present application is a relative concept, and the purpose is to be able to reduce the high temperature in the burner body to a temperature range that the components can withstand. The low-temperature gas here is relative to the high-temperature flue gas. As an example, the low-temperature gas can be a gas below 25 degrees, or a gas below zero degrees, and the specific temperature can be selected as long as the temperature in the burner body is maintained within the target temperature range.

[0037] The low-temperature gas in the present application can not only be used as the power source for the advance and retreat of the igniter, but also can be used as a low-temperature medium to cool the inside of the burner body. Avoiding the high temperature of the incinerator from being conducted to the inside of the burner through the connecting components, or causing some high-temperature flue gas to enter the inside of the burner body due to the poor sealing effect of the high-temperature blocking door, causing the temperature inside the burner to rise. In the present application, when the ignition needle reaches the ignition position, the low-temperature gas enters the inside of the burner body, and also increases the pressure inside the burner body, so as to reduce the pressure difference between the combustion chamber and the burner body, and reduce the probability of the high-temperature flue gas entering the combustion chamber.

[0038] The following is described in a specific embodiment manner.

[0039] A waste incinerator burner comprises a burner body 100 and an igniter 300, the burner body 100 of the embodiment is connected with a combustion chamber, the combustion chamber is communicated with the incinerator, and the ignition position is located in the combustion chamber. The igniter 300 of the embodiment comprises an ignition transformer 301 and an ignition rod 302, the ignition transformer 301 and the ignition rod 302 are connected through a cable, and the end of the ignition rod 302 is provided with an ignition needle. The embodiment further comprises a propelling assembly, which is used to propel the ignition rod 302 to the ignition position or retract the ignition rod 302 from the ignition position to the starting position. The propelling assembly comprises a cylinder 400, which is arranged outside the burner body 100 along the propelling direction of the igniter 300. The cylinder 400 has a proximal end and a distal end, the distal end of the cylinder 400 is sealingly connected with the burner body 100, the proximal end of the cylinder 400 is connected with a low-temperature gas supply device, and the side wall close to the distal end of the cylinder 400 is provided with a gas outlet 401; a moving piston 500 is arranged inside the cylinder 400, the igniter 300 sequentially passes through the proximal end of the cylinder 400, the moving piston 500 and the distal end of the cylinder 400 along the propelling direction and then enters the burner body 100, and the moving piston 500 is used to move in the process of continuously increasing the pressure in the cylinder 400, so as to propel the ignition end of the igniter 300 to reach the ignition position.

[0040] The elastic member 900 is arranged on the ignition rod of the igniter 300 between the distal end of the cylinder 400 and the moving piston 500, which is used to reset the elastic member 900 after stopping the supply of low-temperature gas, so as to make the moving piston 500 drive the igniter 300 to retract from the ignition position to the starting position. As a preferred mode, the proximal end of the cylinder 400 is further connected with an exhaust port, which is used to discharge the residual gas in the cylinder 400 when the moving piston 500 retracts, and a valve is designed on the exhaust port.

[0041] In this embodiment, when ignition is needed, low-temperature gas is continuously introduced into the cylinder 400, and as the gas inside the cylinder 400 increases, the gas pressure at the temple of the cylinder 400 continuously increases, and when the gas pressure reaches a certain level, the moving piston 500 starts to move towards the distal end of the cylinder 400. Since the ignition rod 302 is sealed on the moving piston 500, as the moving piston 500 advances, the ignition rod 302 advances towards the combustion chamber until it reaches the ignition position. When the ignition needle at the end of the ignition rod 302 reaches the ignition position, the gas outlet 401 of the side wall of the cylinder 400 is located on the side of the moving piston 500 close to the proximal end of the cylinder 400, so that the gas in the cylinder 400 enters the gas outlet 401, and the gas discharged by the gas outlet 401 enters the burner body 100 through the high-temperature resistant pipeline, which is used to supply cold gas into the burner body 100 to reduce the temperature in the burner body 100, and at the same time increase the gas pressure in the burner body 100 to prevent the flue gas in the combustion chamber from entering the burner body 100.

[0042] As a preferred mode, the outside of the ignition rod of the igniter 300 is sleeved with a sleeve 600 along the length direction; the sleeve 600 is in communication with the gas outlet 401 of the cylinder 400 through a high-temperature resistant pipeline, and a gap is reserved between the sleeve 600 and the igniter 300 to enable the low-temperature gas to move along the length direction of the igniter 300. As another preferred mode, the outside of the sleeve 600 is covered with thermal insulation material to enable the low-temperature gas entering the sleeve 600 to exchange heat with the ignition rod 302 efficiently.

[0043] As a preferred mode, the burner body 100 is provided with a high-temperature blocking door 700 at the end close to the incinerator, in order to prevent the design of the high-temperature blocking door 700 from affecting the entry and exit of the ignition rod 302, and therefore a perforation 701 for the sleeve 600 to pass through is provided on the high-temperature blocking door 700 at a position corresponding to the ignition rod 302, and a first blocking body 702 and a second blocking body 703 for blocking the perforation 701 are provided at the perforation 701, and the first blocking body 702 and the second blocking body 703 are adapted in size and shape after splicing; the high-temperature blocking door 700 is provided with a sliding groove 704 corresponding to the first blocking body 702 and the second blocking body 703 one by one; the first blocking body 702 and the second blocking body 703 are both in sliding connection with the high-temperature blocking door 700, and the first blocking body 702 and the second blocking body 703 are both hinged to the sleeve 600 through a hinge 800.

[0044] In this embodiment, since the first blocking body 702 and the second blocking body 703 are hinged to the sleeve 600 through the hinge 800, with the advancement and retreat of the sleeve 600 and the ignition rod 302, the first blocking body 702 and the second blocking body 703 change the position of relative approaching or relative moving away, so as to realize the mutual moving away of the first blocking body 702 and the second blocking body 703 when the sleeve 600 advances to the combustion chamber, and the opening of the perforation 701, and the mutual approaching of the first blocking body 702 and the second blocking body 703 when the sleeve 600 retreats from the combustion chamber, and the blocking of the perforation 701, so as to avoid the high-temperature flue gas entering the burner body 100. The specific connection position of the sleeve 600 and the hinge 800 is appropriate to realize the above-mentioned purpose.

[0045] As a preferred mode, the high-temperature blocking door 700 is internally hollow, the hinge 800 is a pipe and is communicated with the sleeve 600; the elastic sliding block 705 is arranged at the end of the sliding groove 704 away from the perforation 701, the sliding groove 704 side wall where the elastic sliding block 705 is arranged is provided with the through hole 706 communicated with the inside of the high-temperature blocking door 700, when the first blocking body 702 and the second blocking body 703 move to the position of the elastic sliding block 705, the elastic sliding block 705 is pressed, the hinge 800 is communicated with the through hole 706, so as to make the low-temperature gas enter the inside of the high-temperature blocking door 700. In this embodiment, the elastic sliding block 705 is used to block the through hole 706 on the sliding groove 704 side wall, the hinge 800 is a pipe and is used to conduct the gas between the sleeve 600 and the ignition rod 302, the inside of the high-temperature blocking door 700 is hollow, in this embodiment, the gas conducted by the hinge 800 is introduced into the hollow structure inside the high-temperature blocking door 700, so as to cool the high-temperature blocking door 700 which is a direct heat source; the outside of the high-temperature blocking door 700 can be designed as an exhaust passage connected with the internal hollow structure, and a one-way valve is arranged on the exhaust passage, when the gas pressure in the high-temperature blocking door 700 increases, the one-way valve opens the exhaust, so as to realize that the high-temperature gas which has completed heat exchange in the high-temperature blocking door is directly discharged to the combustion chamber and the outside of the burner body 100, and the part of heat is directly transmitted to the burner body 100, so as to better maintain the internal temperature of the burner body 100 within the tolerance temperature range of the components.

[0046] As a preferred mode, the sleeve 600 is a variable diameter pipe, the diameter of the sleeve 600 gradually decreases along the length direction of the ignition rod from the ignition end of the ignition rod 300 to the other end, and the high-temperature resistant pipe is connected to the side wall of the sleeve 600 close to the ignition end. The purpose is to preferentially guide the low-temperature gas into the end of the ignition needle designed by the ignition rod, because the end part is located in the combustion chamber, the temperature is relatively high, and the end part is preferentially reduced. And in this embodiment, the diameter of the sleeve 600 close to the ignition needle is larger, which can quickly reduce the temperature of the end of the ignition rod 302 close to the ignition needle by increasing the amount of low-temperature gas, and avoid the temperature from being further transmitted to the other end of the ignition rod 302.

[0047] As a preferred mode, because the end part of the hinge 800 connected with the sleeve 600 is always in a movable state, in order not to affect the gas transmission, the end part of the hinge 800 connected with the sleeve 600 is sealingly connected with the sleeve 600 through the gas guide hose 900, the hinge 800 is hingedly connected with the first sealing body 702 and the second sealing body 703 through a hollow rotating shaft, the rotating shaft is arranged in the width direction of the sliding groove 704, and the end part of the rotating shaft is matched with the through hole 706 in size.

[0048] As a preferred mode, the burner body 100 is further connected with a main fuel gas injection pipeline system 10 and a combustion supporting gas injection pipeline system 11, and flow meters are arranged on the main fuel gas injection pipeline system 10 and the combustion supporting gas injection pipeline system 11. On the basis of effectively controlling the high-temperature flue gas in the combustion chamber and the incinerator into the burner body 100 and the low-temperature gas regulation in the burner body 100, the application further controls the injection amount of the main fuel gas injection pipeline system 10 and the combustion supporting gas injection pipeline system from the source, so that it is suitable for the fluctuation of the garbage heat value, and can prevent the event of the furnace temperature being lower than 850 DEG C caused by the garbage heat value fluctuation, garbage layer combustion fireout, and mechanical jamming of the grate, etc. At the same time, it can also avoid the problem of flue gas counterattack caused by the large fluctuation of the garbage heat value.

[0049] As a preferred mode, the burner body 100 is further connected with a cooling air pipeline system 12, and a cooling air pressure test unit is arranged on the cooling air pipeline system 12. The embodiment can also prevent the event of the furnace temperature being lower than 850 DEG C caused by the garbage heat value fluctuation, garbage layer combustion fireout, and mechanical jamming of the grate, etc. by regulating the pressure of the cooling air, and avoid the problem of flue gas counterattack caused by the large fluctuation of the garbage heat value.

[0050] As a preferred mode, the burner body 100 is also connected with an ignition gas supply pipeline 200, one end of the ignition gas supply pipeline 200 is connected with the main gas injection pipeline system 10, and the other end is located in the burner body 100, for providing ignition gas, and the ignition gas of the embodiment is used to provide combustible gas in the ignition stage, so that better ignition effect can be achieved.

[0051] According to the reasonable regulation of the main gas and the auxiliary gas, the embodiment can prevent the event that the furnace temperature is lower than 850 DEG C caused by the large fluctuation of the waste heat value, the waste layer combustion off, the mechanical jam of the grate and the like. According to the waste heat value, the main gas and the auxiliary gas are regulated, and the waste heat value is controlled to be higher than 850 DEG C. Figures 7-10 It can be seen that in the start-up heating and shutdown cooling stage, the burner can control the burner load according to the heating curve, and the incinerator heating curve is stable.

[0052] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A waste incinerator burner comprising a burner body (100) and an igniter (300), the igniter (300) comprising an ignition transformer (301) and an ignition rod (302), the ignition transformer (301) and ignition rod (302) being connected by a cable, characterized in that, Further comprising a propelling assembly for propelling the ignition rod (302) to the ignition position or retracting the ignition rod (302) from the ignition position to the initial position, the propelling assembly comprising: a cylinder (400) arranged outside the burner body (100) in the propelling direction of the igniter (300), the cylinder (400) having a proximal end and a distal end, the distal end of the cylinder (400) being sealingly connected with the burner body (100), the proximal end of the cylinder (400) being connected with a low-temperature gas supply pipeline, the cylinder (400) being provided with a gas outlet (401) on the side wall close to the distal end, the gas outlet (401) being in communication with the inside of the burner body (100); a moving piston (500) located inside the cylinder (400), the igniter (300) sequentially penetrating into the proximal end of the cylinder (400), the moving piston (500) and the distal end of the cylinder (400) in the propelling direction and then entering the burner body (100), the moving piston (500) being used for moving in the cylinder (400) during the continuous increase of the pressure in the cylinder (400) to propel the ignition end of the igniter (300) to reach the ignition position; a resilient member (900) arranged on the ignition rod (302) between the distal end of the cylinder (400) and the moving piston (500), used for resetting the resilient member (900) after stopping the supply of low-temperature gas to make the moving piston (500) drive the igniter (300) to retract from the ignition position to the initial position; a sleeve (600) is sleeved on the outside of the ignition rod (302) along the length direction; the sleeve (600) is in communication with the gas outlet (401) of the cylinder (400) through a high-temperature resistant pipeline, and a gap is reserved between the sleeve (600) and the ignition rod (302) to enable the low-temperature gas to move along the length direction of the ignition rod (302); the diameter of the sleeve (600) gradually decreases along the length direction of the ignition rod (302) from the ignition end of the ignition rod (302) to the other end, and the high-temperature resistant pipeline is connected on the side wall of the sleeve (600) close to the ignition end; the burner body (100) is provided with a high-temperature blocking door (700) at the end close to the incinerator, the high-temperature blocking door (700) is provided with a perforation (701) for the sleeve (600) to pass through at the position corresponding to the ignition rod (302), the perforation (701) is provided with a first blocking body (702) and a second blocking body (703) for blocking the perforation (701), the first blocking body (702) and the second blocking body (703) are matched after splicing and are matched with the size and shape of the perforation (701); the high-temperature blocking door (700) is provided with a sliding groove (704) corresponding to the first blocking body (702) and the second blocking body (703); the first blocking body (702) and the second blocking body (703) are both slidingly connected with the high-temperature blocking door (700), and the first blocking body (702) and the second blocking body (703) are both hinged with the sleeve (600) through a hinge (800). The high-temperature blocking door (700) is internally hollow, the hinge (800) is a pipe and is in communication with the sleeve (600); the sliding groove (704) is provided with an elastic sliding block (705) at an end away from the perforation (701), the sliding groove (704) is provided with a through hole (706) in communication with the hollow structure inside the high-temperature blocking door (700) on a side wall of the elastic sliding block (705), when the first sealing body (702) and the second sealing body (703) are moved to the position of the elastic sliding block (705), the elastic sliding block (705) is pressed, the hinge (800) is in communication with the through hole (706), so that the low-temperature gas enters the inside of the high-temperature blocking door (700).

2. The waste incinerator burner of claim 1, wherein The hinge (800) is sealingly connected with the sleeve through a gas guide hose, the hinge (800) is hingedly connected with the first sealing body (702) and the second sealing body (703) through a hollow rotating shaft, the end of the rotating shaft is matched with the through hole (706) in size, so that the gas enters the inside of the high-temperature blocking door (700).

3. The waste incinerator burner of claim 1, wherein The burner body (100) is further connected with a main gas injection pipeline system (10) and an auxiliary gas injection pipeline system (11), the main gas injection pipeline system (10) and the auxiliary gas injection pipeline system (11) are both provided with flow meters.

4. The waste incinerator burner of claim 1, wherein The burner body (100) is further connected with a cooling air pipeline system (12), the cooling air pipeline system (12) is provided with a cooling air pressure test unit.

5. The waste incinerator burner of claim 3, wherein The burner body (100) is further connected with an ignition gas supply pipeline (200), one end of the ignition gas supply pipeline (200) is connected with the main gas injection pipeline system (10), and the other end is located in the burner body (100) and is used for providing ignition gas.

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