Online ash removal device of HCS efficient combustion burner

Abstract

The utility model discloses an on-line ash removal device of an HCS efficient combustion burner, which comprises a base and a compressed air spray gun, a premixing chamber is arranged on the base, a metal fiber surface burner is arranged on the premixing chamber, a smoke exhaust cylinder is arranged on the metal fiber surface burner, an air delivery pipe is arranged on one side of the base, and an air outlet pipe is arranged on the other side of the base. A VOCs waste gas conveying pipe is arranged on the other side of the base, a combustion-supporting gas conveying pipe is arranged on the VOCs waste gas conveying pipe, a differential pressure monitoring device, a mounting rod and a control system are arranged on the outer side of the metal fiber surface combustor, a mounting block is arranged on the mounting rod, and a spray gun telescopic mechanism is arranged on one side of the mounting block. Through the arrangement of the differential pressure monitoring device, the spray gun telescopic mechanism, the compressed air spray gun and the control system, the structure can clean clogged ash or impurities on the metal fiber surface combustor according to needs, and the situation that normal operation of combustion is affected due to clogging of combustion capillary holes is avoided; and non-planned shutdown caused by shutdown maintenance or blockage of the device can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to an online ash cleaning device for an HCS high-efficiency combustion burner. Background Art

[0002] As the country increases its efforts to control air pollution, there are currently a variety of VOCs control technologies in use in the domestic market, including traditional adsorption and absorption technology, RTO\RCO\CO\TO and other incineration technologies to achieve VOCs gas removal and ensure that VOCs emission indicators meet relevant national environmental protection standards. However, the above traditional technologies each have their own technical shortcomings, which will lead to the final emission indicators not being able to meet the standards stably. At the same time, fluctuations in operating parameters during operation may cause changes in the concentration of exhaust gas imported from the equipment, causing the equipment operating parameters to occasionally exceed the design operating parameters or the VOCs emission indicators to exceed the standard. In some cases, it may also cause the device to shut down unplanned due to high exhaust gas concentration.

[0003] HCS high-efficiency combustion technology is a new type of VOCs treatment technology that can stably achieve ultra-low emissions of VOCs (<15mg / Nm3) and NOx (<15mg / Nm3). This new type of high-efficiency combustion technology is an open direct combustion surface combustion technology. The core part of the device is an iron-chromium alloy burner made of porous metal fibers. There are millions of capillaries on this surface burner. After passing through these capillaries, the exhaust gas can burn evenly on the surface, avoiding local high-temperature combustion, thereby achieving NOx emission indicators and ultra-low emission standards.

[0004] Another major feature of this high-efficiency combustion technology is that it does not require the original exhaust gas to be treated for concentration dilution, thus significantly reducing the energy consumption of the fan. Currently, it is being promoted and applied in some key industries in China, such as crude oil loading, terminal loading and unloading, and tank area exhaust gas treatment.

[0005] Since this HCS high-efficiency VOCs combustion technology adopts a specially designed metal fiber porous structure burner, and is used as a continuous treatment device for VOCs waste gas treatment, but VOCs waste gas is generally collected from various production equipment, chemical equipment or other places where VOCs gas is generated in the factory, it is inevitable that some similar impurities will be produced or entrained. After running for a period of time, this metal surface burner may form plugged holes on the air inlet end face, causing the burner air inlet pores to be blocked, affecting the normal operation of the surface burner, and severely causing local damage to the burner.

[0006] The existing technology has the following defects or problems: the existing HCS high-efficiency VOCs combustion technology of metal fiber surface burners, because they have millions of capillary channels, the impurities contained in the exhaust gas itself may clog the gaps during operation, causing abnormal operation of the burner. Therefore, the usual practice or design is to install a differential pressure machine at the appropriate position of the inlet and outlet directions of the burner to monitor the differential pressure changes in real time. When the differential pressure value reaches too high, an alarm will be issued. After seeing the alarm, the operator will handle the entire device. There are two conventional treatment methods: one is to enter the device through the manhole door after shutdown, use an artificial compressed air pipe, and use airflow to purge the surface of the burner. The surface cleaning usually takes at least 2-3 hours or more. Another method is to quickly switch the device through a hydraulic device, lift the upper chimney part, remove the original blocked burner, and quickly replace it with a spare burner. After the blocked burner is replaced, it is also manually cleaned as a spare part for the next rotation. This quick switching usually takes at least 8 hours or even more. Although the above two methods can solve the problem, they will affect the continuous operation of the exhaust gas treatment device, and the environmental protection monitoring pressure is also high. It is necessary to report and obtain approval in advance before implementation. At the same time, these two methods are time-consuming and labor-intensive. Therefore, an HCS high-efficiency combustion burner online ash cleaning device is needed to solve the above problems. Utility Model Content

[0007] The utility model aims to provide an online ash cleaning device for an HCS high-efficiency combustion burner to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online ash cleaning device for HCS high-efficiency combustion burner, comprising a base and a compressed air spray gun, the base is provided with a premixing chamber, the premixing chamber is provided with a metal fiber surface burner, the metal fiber surface burner is provided with a smoke exhaust pipe, one side of the base is provided with an air delivery pipe, the other side of the base is provided with a VOCs waste gas delivery pipe, the VOCs waste gas delivery pipe is provided with a combustion-supporting gas delivery pipe, the outer side of the metal fiber surface burner is provided with a differential pressure monitoring device, a mounting rod, and a control system, the mounting rod is provided with a mounting block, one side of the mounting block is provided with a spray gun telescopic mechanism, and a connecting hole is opened on the metal fiber surface burner;

[0009] The telescopic mechanism of the spray gun includes a fixed rod, a telescopic rod, a motor, an empty slot, a bearing, a threaded rod, a first bevel gear, a second bevel gear, a threaded hole, a limit slot and a limit block. A fixed rod is provided on one side of the mounting block, a telescopic rod is provided at one end of the fixed rod, a motor is provided at the bottom of the fixed rod, an empty slot is provided at one end of the fixed rod, a bearing is provided at the bottom of the empty slot, a threaded rod and a first bevel gear are provided in the empty slot, a second bevel gear is provided on the threaded rod, a threaded hole is provided at one end of the telescopic rod, limit slots are provided on both sides of the inner wall of the empty slot, and a limit block is provided on one side of the telescopic rod.

[0010] As a preferred technical solution of the utility model, two groups of mounting rods are fixedly mounted on the metal fiber surface burners on both sides of the connecting hole, and both ends of one side of the mounting block are respectively fixedly mounted on one end of the two groups of mounting rods.

[0011] As a preferred technical solution of the utility model, one end of the fixing rod is fixedly mounted on one side of the mounting block, and the bearing is embedded in the bottom of the empty groove.

[0012] As a preferred technical solution of the utility model, one end of the threaded rod extends into and is fixed on the inner ring of the bearing, and the second bevel gear is sleeved and fixed on the threaded rod near the bottom of the empty groove.

[0013] As a preferred technical solution of the utility model, the motor is fixedly installed at the bottom of one end of the fixed rod and the output end of the motor extends into the fixed rod, the first bevel gear is fixedly installed at the output end of the motor, and the first bevel gear is vertically meshed with the second bevel gear.

[0014] As a preferred technical solution of the utility model, the threaded hole is adapted to the threaded rod, the empty slot is adapted to the telescopic rod, one end of the telescopic rod is inserted into the empty slot and then threadedly connected to the threaded rod, and limit blocks are fixedly installed on both sides of the inserted end of the telescopic rod, the two groups of limit slots are respectively adapted to the two groups of limit blocks, and the two groups of limit blocks are respectively slidably installed in the two groups of limit slots.

[0015] As a preferred technical solution of the utility model, the mounting end of the compressed air spray gun is fixedly mounted on the protruding end of the telescopic rod and the output end of the compressed air spray gun corresponds to and matches the position of the connecting hole. There are six groups of compressed air spray guns, spray gun telescopic mechanisms, and connecting holes. The control system is fixed to the outside of the metal fiber surface burner through a bracket, and the motor, differential pressure monitoring device, and compressed air spray gun are all electrically connected to the control system.

[0016] Compared with the prior art, the utility model provides an online ash cleaning device for HCS high-efficiency combustion burners, which has the following beneficial effects:

[0017] The online ash cleaning device for HCS high-efficiency combustion burner is provided with a differential pressure monitoring device, a spray gun telescopic mechanism, a compressed air spray gun, and a control system. Compared with the traditional method of stopping the machine for manual cleaning or quickly replacing the combustion injection, this structure can be cleaned online without stopping the entire device, and will not affect environmental emissions and monitoring, and does not require shutdown reporting. The online cleaning method is completely automatic based on the differential pressure alarm, only consumes a small amount of compressed air, does not require manual cleaning, is stable and reliable, and reduces the labor intensity of operators. In addition, the online cleaning method can realize continuous operation of the unit, ensure long-term operation of the unit, and does not require regular inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the telescopic mechanism of the spray gun of the utility model;

[0020] Figure 3 This is a schematic diagram of the external structure of the telescopic mechanism of the spray gun of the utility model;

[0021] Figure 4 This is a schematic diagram of the meshing of the first bevel gear and the second bevel gear of the utility model structure;

[0022] Figure 5 This is a schematic diagram of the connection hole of the compressed air spray gun of the utility model after being removed.

[0023] In the figure: 1. base; 2. premixing chamber; 3. metal fiber surface burner; 4. smoke exhaust pipe; 5. air delivery pipe; 6. differential pressure monitoring device; 7. mounting rod; 8. mounting block; 9. spray gun telescopic mechanism; 901. fixed rod; 902. telescopic rod; 903. motor; 904. empty slot; 905. bearing; 906. threaded rod; 907. first bevel gear; 908. second bevel gear; 909. threaded hole; 910. limit groove; 911. limit block; 10. compressed air spray gun; 11. control system; 12. connecting hole; 13. VOCs waste gas delivery pipe; 14. combustion-supporting gas delivery pipe. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5 In this embodiment: an online ash cleaning device for a HCS high-efficiency combustion burner comprises a base 1 and a compressed air spray gun 10. A premixing chamber 2 is arranged on the base 1, a metal fiber surface burner 3 is arranged on the premixing chamber 2, a smoke exhaust pipe 4 is arranged on the metal fiber surface burner 3, an air delivery pipe 5 is arranged on one side of the base 1, a VOCs waste gas delivery pipe 13 is arranged on the other side of the base 1, a combustion-supporting gas delivery pipe 14 is arranged on the VOCs waste gas delivery pipe 13, a differential pressure monitoring device 6, a mounting rod 7, and a control system 11 are arranged on the outer side of the metal fiber surface burner 3, the differential pressure monitoring device 6 can monitor the differential pressure of the metal fiber surface burner 3 in real time, a mounting block 8 is arranged on the mounting rod 7, the mounting block 8 can facilitate the installation of a spray gun telescopic mechanism 9, a spray gun telescopic mechanism 9 is arranged on one side of the mounting block 8, a connecting hole 12 is opened on the metal fiber surface burner 3, and the connecting hole 12 can facilitate the compressed air spray gun 10 to extend into the metal fiber surface burner 3;

[0026] The spray gun telescopic mechanism 9 includes a fixed rod 901, a telescopic rod 902, a motor 903, an empty slot 904, a bearing 905, a threaded rod 906, a first bevel gear 907, a second bevel gear 908, a threaded hole 909, a limit slot 910 and a limit block 911. A fixed rod 901 is provided on one side of the mounting block 8, and the fixed rod 901 can facilitate the installation of the telescopic rod 902. The telescopic rod 902 is provided at one end of the fixed rod 901, and the motor 903 is provided at the bottom of the fixed rod 901. The motor 903 The rotation of the output end 03 can drive the synchronous rotation of the first bevel gear 907. An empty slot 904 is provided at one end of the fixed rod 901, and a bearing 905 is provided at the bottom of the empty slot 904. A threaded rod 906 and a first bevel gear 907 are provided in the empty slot 904, and a second bevel gear 908 is provided on the threaded rod 906. A threaded hole 909 is provided at one end of the telescopic rod 902, and limiting slots 910 are provided on both sides of the inner wall of the empty slot 904, and a limiting block 911 is provided on one side of the telescopic rod 902.

[0027] In this embodiment, two sets of mounting rods 7 are fixedly mounted on the metal fiber surface burners 3 on both sides of the connection hole 12, and both ends of one side of the mounting block 8 are fixedly mounted on one end of the two sets of mounting rods 7 respectively;

[0028] Specifically, the mounting rod 7 can facilitate the installation of the mounting block 8;

[0029] In this embodiment, one end of the fixing rod 901 is fixedly mounted on one side of the mounting block 8, and the bearing 905 is embedded in the bottom of the empty groove 904;

[0030] Specifically, the bearing 905 can facilitate the rotational connection between the threaded rod 906 and the bottom of the empty slot 904;

[0031] In this embodiment, one end of the threaded rod 906 extends into and is fixed on the inner ring of the bearing 905, and the second bevel gear 908 is sleeved and fixed on the threaded rod 906 near the bottom of the empty slot 904;

[0032] Specifically, the rotation of the threaded rod 906 can drive the telescopic movement of the telescopic rod 902;

[0033] In this embodiment, the motor 903 is fixedly mounted at the bottom of one end of the fixed rod 901 and the output end of the motor 903 extends into the fixed rod 901, the first bevel gear 907 is fixedly mounted at the output end of the motor 903, and the first bevel gear 907 is vertically meshed with the second bevel gear 908;

[0034] Specifically, the rotation of the first bevel gear 907 can drive the rotation of the second bevel gear 908;

[0035] In this embodiment, the threaded hole 909 is matched with the threaded rod 906, the empty slot 904 is matched with the telescopic rod 902, one end of the telescopic rod 902 is inserted into the empty slot 904 and then threadedly connected to the threaded rod 906, and both sides of the inserted end of the telescopic rod 902 are fixedly installed with limit blocks 911, the two groups of limit slots 910 are respectively matched with the two groups of limit blocks 911, and the two groups of limit blocks 911 are respectively slidably installed in the two groups of limit slots 910;

[0036] Specifically, the limiting block 911 combined with the limiting groove 910 can limit the telescopic rod 902;

[0037] In this embodiment, the mounting end of the compressed air spray gun 10 is fixedly mounted on the extended end of the telescopic rod 902 and the output end of the compressed air spray gun 10 corresponds to and matches the position of the connecting hole 12. There are six groups of compressed air spray guns 10, spray gun telescopic mechanisms 9, and connecting holes 12. The control system 11 is fixed to the outside of the metal fiber surface burner 3 through a bracket. The motor 903, the differential pressure monitoring device 6, and the compressed air spray gun 10 are all electrically connected to the control system 11.

[0038] Specifically, the control system 11 can control the operation of the motor 903 , the differential pressure monitoring device 6 , and the compressed air spray gun 10 .

[0039] The working principle and use process of the utility model are as follows: when the differential pressure monitoring device 6 on the processing device reaches a high alarm value, the control system 11 will automatically start and control the spray gun telescopic mechanism 9 to control the compressed air spray gun 10. The operation principle of the spray gun telescopic mechanism 9 is as follows: the motor 903 drives the first bevel gear 907 to rotate. Since the first bevel gear 907 is vertically meshed with the second bevel gear 908, the rotation of the first bevel gear 907 can drive the rotation of the second bevel gear 908, and then drive the rotation of the threaded rod 906. Due to the limiting effect of the limiting block 911, the telescopic rod 902 will not rotate with the rotation of the threaded rod 906, and the telescopic rod 902 will perform telescopic movement with the rotation of the threaded rod 906 in different directions;

[0040] Six groups of compressed air spray guns 10 are evenly arranged in the circumferential direction of the metal fiber surface burner 3. After the spray gun telescopic mechanism 9 is started, the spray guns will be controlled to automatically extend into the air inlet end face of the metal fiber surface burner 3 for online cleaning. Each group of compressed air spray guns 10 adopts a wide-angle spray angle design to ensure that a total of six groups of spray guns can cover and clean the entire metal fiber surface burner 3. The medium used by this type of compressed air spray gun 10 is compressed air. When the spray gun telescopic mechanism 9 extends the spray gun to the corresponding position of the metal fiber surface burner 3, the control The control system 11 will control the electromagnetic valve on the compressed air pipeline of the compressed air spray gun 10 to ventilate for purging. During each cleaning process, when the pressure monitoring value of the differential pressure monitoring device 6 returns to a normal state, the automatic control system 11 will control the compressed air spray gun 10 to retract back to the standby device to complete a cleaning of the metal fiber surface burner 3. This structure can clean the ash or impurities on the metal fiber surface burner 3 as needed to avoid clogging of the combustion pores and affecting the normal operation of the combustion. This can avoid the shutdown of the device for maintenance or unplanned shutdown due to blockage.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An online ash cleaning device for an HCS high-efficiency combustion burner, comprising a base (1) and a compressed air spray gun (10), wherein the base (1) is provided with a premixing chamber (2), the premixing chamber (2) is provided with a metal fiber surface burner (3), the metal fiber surface burner (3) is provided with a smoke exhaust pipe (4), one side of the base (1) is provided with an air delivery pipe (5), the other side of the base (1) is provided with a VOCs waste gas delivery pipe (13), the VOCs waste gas delivery pipe (13) is provided with a combustion-aiding gas delivery pipe (14), and the characteristics are: The outside of the metal fiber surface burner (3) is provided with a differential pressure monitoring device (6), a mounting rod (7), and a control system (11); a mounting block (8) is provided on the mounting rod (7); a spray gun telescopic mechanism (9) is provided on one side of the mounting block (8); and a connecting hole (12) is provided on the metal fiber surface burner (3); The spray gun telescopic mechanism (9) comprises a fixed rod (901), a telescopic rod (902), a motor (903), an empty slot (904), a bearing (905), a threaded rod (906), a first bevel gear (907), a second bevel gear (908), a threaded hole (909), a limit slot (910) and a limit block (911); a fixed rod (901) is arranged on one side of the mounting block (8); a telescopic rod (902) is arranged at one end of the fixed rod (901); and a motor (903) is arranged at the bottom of the fixed rod (901). ), a slot (904) is provided at one end of the fixed rod (901), a bearing (905) is provided at the bottom of the slot (904), a threaded rod (906) and a first bevel gear (907) are provided in the slot (904), a second bevel gear (908) is provided on the threaded rod (906), a threaded hole (909) is provided at one end of the telescopic rod (902), limiting slots (910) are provided on both sides of the inner wall of the slot (904), and a limiting block (911) is provided on one side of the telescopic rod (902).

2. The online ash cleaning device for HCS high-efficiency combustion burner according to claim 1 is characterized in that: Two groups of mounting rods (7) are fixedly mounted on the metal fiber surface burners (3) on both sides of the connection hole (12), and two ends of one side of the mounting block (8) are respectively fixedly mounted on one end of the two groups of mounting rods (7).

3. The online ash cleaning device for HCS high-efficiency combustion burner according to claim 1 is characterized in that: One end of the fixing rod (901) is fixedly mounted on one side of the mounting block (8), and the bearing (905) is embedded in the bottom of the empty groove (904).

4. The online ash cleaning device for HCS high-efficiency combustion burner according to claim 1 is characterized in that: One end of the threaded rod (906) extends into and is fixed on the inner ring of the bearing (905), and the second bevel gear (908) is sleeved and fixed on the threaded rod (906) at a position close to the bottom of the empty slot (904).

5. The online ash cleaning device for HCS high-efficiency combustion burner according to claim 1 is characterized in that: The motor (903) is fixedly mounted at the bottom of one end of the fixed rod (901) and the output end of the motor (903) extends into the fixed rod (901). The first bevel gear (907) is fixedly mounted at the output end of the motor (903). The first bevel gear (907) is vertically meshed with the second bevel gear (908).

6. The online ash cleaning device for HCS high-efficiency combustion burner according to claim 1 is characterized in that: The threaded hole (909) is matched with the threaded rod (906), the empty slot (904) is matched with the telescopic rod (902), one end of the telescopic rod (902) is inserted into the empty slot (904) and then threadedly connected to the threaded rod (906), and limiting blocks (911) are fixedly installed on both sides of the inserted end of the telescopic rod (902), the two groups of limiting slots (910) are respectively matched with the two groups of limiting blocks (911), and the two groups of limiting blocks (911) are respectively slidably installed in the two groups of limiting slots (910).

7. The online ash cleaning device for HCS high-efficiency combustion burner according to claim 1 is characterized in that: The mounting end of the compressed air spray gun (10) is fixedly mounted on the protruding end of the telescopic rod (902), and the output end of the compressed air spray gun (10) corresponds to and matches the position of the connecting hole (12). There are a total of six groups of the compressed air spray gun (10), the spray gun telescopic mechanism (9), and the connecting hole (12). The control system (11) is fixed to the outside of the metal fiber surface burner (3) through a bracket. The motor (903), the differential pressure monitoring device (6), the compressed air spray gun (10) and the control system (11) are all electrically connected.

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