A three-purpose burner for kerosene, gas and coal

Abstract

The utility model provides a kind of kerosene gas three-purpose burner, belong to burner field, including shell, the side of the shell is provided with the combustion assembly for burning, the utility model is provided with combustion assembly, realizes the stable combustion process of coal, oil, gas three kinds of fuel, by integrated fuel supply and combustion control function, ensure that fuel is fully mixed in combustion chamber and efficient combustion, while supporting a variety of fuel independent or collaborative work, adapt to different working condition requirement, guarantee combustion efficiency and safety, by setting up coal powder transmission component, realized that coal powder transmission component is used to continuously, stably transport coal powder from storage unit to combustion chamber, by dynamically adjusting conveying parameter to match combustion demand, maintain the uniformity and controllability of coal powder supply, avoid the problem of blockage or material break, ensure that combustion system is long-term stable operation under coal-fired mode.

Description

Technical Field

[0001] This utility model relates to the field of burners, and more specifically, to a kerosene-gas combustor. Background Technology

[0002] Industrial burners can be classified into several types according to the type of fuel, such as pulverized coal burners, oil burners, and natural gas burners. Burners have long been used in thermal power plants, boilers, and the metallurgical industry. In addition, they have been widely used in asphalt mixing equipment in municipal construction and highway construction in the past two decades, although there are various types of pulverized coal burners, oil burners, and gas burners on the market.

[0003] A search revealed that Chinese Patent Publication No. CN10828671A discloses "a coal-oil-gas tri-fuel burner, comprising a shared furnace connected to a pulverized coal supply device, an oil supply device, and a gas supply device, the fuel injection device comprising an outer cylinder, a pulverized coal injection cylinder, and an oil injection gun arranged sequentially from the outside to the inside; a pulverized coal inlet is provided on the pulverized coal injection cylinder, and an oil inlet is provided on the oil injection gun; an annular gas distribution chamber is bolted along the outer circumference of the outer cylinder, the annular gas distribution chamber having a gas inlet and a gas nozzle; an air inlet is also provided on the outer cylinder, the air inlet being connected to an air supply device; an ignition device is provided in the pulverized coal injection cylinder. This solution overcomes the defect that a single burner cannot use multiple fuels and that various fuels cannot be substituted for each other. This solution integrates a pulverized coal burner, an oil burner, and a natural gas burner into one unit, and can be arbitrarily combined, saving purchase and maintenance costs, and is very convenient to install, use, and maintain." However, it still has the following drawbacks:

[0004] While a nested structure can achieve multi-fuel compatibility, it suffers from structural complexity, significant safety hazards, and the risk of spontaneous combustion arises because the three fuels are concentrated inside the burner before combustion. Utility Model Content

[0005] The purpose of this invention is to address the current problem of achieving multi-fuel compatibility through a nested structure, which has the disadvantages of complex structure, significant safety hazards, and the risk of spontaneous combustion due to the concentration of the three fuels inside the burner before combustion.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The present invention is as follows: a coal, oil and gas combustor, including a housing, a combustion assembly for combustion is provided on one side of the housing, and a coal powder conveying assembly for coal powder conveying is provided on one side of the combustion assembly.

[0008] The combustion assembly includes a combustion chamber located at the top of the housing. A fuel gun is bolted to the front end of the combustion chamber. An inlet pipe is threaded to one side of the fuel gun. A fuel pump is bolted to one side of the inlet pipe. The fuel pump is located on one side of the housing. A limit valve is provided on one side of the fuel pump. A gas tank is bolted to one side of the combustion chamber. An air intake pump is bolted to one side of the gas tank. A gas delivery pipe is bolted to the top of the air intake pump. A natural gas nozzle is attached to one end of the gas delivery pipe. An acetylene cylinder is placed on one side of the bottom of the housing. An acetylene pipe is bolted to one side of the acetylene cylinder. One end of the acetylene pipe is connected to the interior of the combustion chamber. One end of the natural gas nozzle is fixed to one side of the combustion chamber.

[0009] As a preferred technical solution of this utility model, the pulverized coal conveying assembly includes a temporary storage bin disposed on one side of the housing, a conveying fan placed on one side of the temporary storage bin, a conveying pipe threadedly connected to one side of the conveying fan, one end of the conveying pipe being connected to the side wall of the combustion chamber, and the interior of the conveying pipe communicating with the interior of the combustion chamber.

[0010] As a preferred technical solution of this utility model, an exhaust pipe is bolted to one side of the combustion chamber, an exhaust pump is bolted to the bottom end of the exhaust pipe, an exhaust pipe is bolted to one side of the exhaust pump, and a filter screen is snapped into one end of the exhaust pipe.

[0011] As a preferred technical solution of this utility model, an oxygen inlet port for supplying oxygen is bolted to one side of the top of the housing, and a sealing bolt is threaded to one side of the oxygen inlet port, with a fixing gasket snapped into one end of the sealing bolt.

[0012] As a preferred technical solution of this utility model, a pressure monitoring valve for monitoring the exhaust gas pressure during emission is bolted to the top of the exhaust pipe. The pressure monitoring valve is located on one side of the exhaust pump and on one side of the housing.

[0013] As a preferred technical solution of this utility model, a restraining ring is welded to one side of the combustion chamber, a fixing ring is welded to the top of the restraining ring, and a hoisting hole for hoisting the combustion chamber is opened inside the fixing ring.

[0014] As a preferred technical solution of this utility model, a base is bolted to the bottom of the housing, a self-locking universal wheel is bolted to the bottom of the base, and a push plate is welded to one side of the top of the base, with the push plate vertically arranged on the top of the base.

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

[0016] 1. Through the set combustion components, a stable combustion process of three fuels, coal, oil and gas, is realized. By integrating fuel supply and combustion control functions, it ensures that the fuel is fully mixed and burned efficiently in the combustion chamber. At the same time, it supports the independent or collaborative operation of multiple fuels, adapts to different working conditions, and ensures combustion efficiency and safety.

[0017] 2. By setting up a pulverized coal conveying component, the pulverized coal conveying component is used to continuously and stably transport pulverized coal from the storage unit to the combustion chamber. By dynamically adjusting the conveying parameters to match the combustion demand, the uniformity and controllability of pulverized coal supply are maintained, blockage or material shortage problems are avoided, and the long-term stable operation of the combustion system in coal-fired mode is ensured. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the kerosene-gas combustor provided by this utility model;

[0019] Figure 2 A top view of the kerosene-gas combustor provided by this utility model;

[0020] Figure 3 A left-side structural schematic diagram of the kerosene-oil-gas combustor provided by this utility model;

[0021] Figure 4 A schematic diagram of the exhaust pipe, gas pump, gas outlet pipe and filter screen of the kerosene-oil-gas tri-fuel burner provided by this utility model;

[0022] Figure 5 A schematic diagram of the filter screen, gas inlet port, and sealing bolts of the kerosene-oil-gas combustor provided by this utility model.

[0023] The diagram shows: 1. Shell; 2. Combustion assembly; 3. Pulverized coal conveying assembly; 4. Exhaust pipe; 5. Gas pump; 6. Gas pipe; 7. Filter screen; 8. Gas inlet port; 9. Sealing bolt; 10. Fixing gasket; 11. Gas pressure monitoring valve; 12. Restraining ring; 13. Fixing ring; 14. Lifting hole; 15. Base; 16. Self-locking caster wheel; 17. Push plate; 201. Combustion chamber; 202. Oil gun; 203. Inlet pipe; 204. Oil pump; 205. Limit valve; 206. Gas cylinder; 207. Inlet pump; 208. Gas delivery pipe; 209. Natural gas nozzle; 210. Acetylene cylinder; 211. Acetylene pipe; 301. Temporary storage compartment; 302. Conveying fan; 303. Conveying pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] like Figure 1 As shown, this embodiment proposes a coal, oil and gas tri-fuel burner, including a housing 1, a combustion assembly 2 for combustion is provided on one side of the housing 1, and a coal powder conveying assembly 3 for coal powder conveying is provided on one side of the combustion assembly 2.

[0029] like Figure 2 and Figure 3As shown, the combustion assembly 2 includes a combustion chamber 201 located at the top of the housing 1. A fuel gun 202 is bolted to the front end of the combustion chamber 201. An inlet pipe 203 is threaded to one side of the fuel gun 202. A fuel pump 204 is bolted to one side of the inlet pipe 203. The fuel pump 204 is located on one side of the housing 1. A limit valve 205 is installed on one side of the fuel pump 204. A gas cylinder 206 is bolted to one side of the combustion chamber 201. An air intake pump 207 is bolted to one side of the gas cylinder 206. A gas supply pipe 208 is bolted to the top of the air intake pump 207. A natural gas nozzle 209 is attached to one end of the gas supply pipe 208. An acetylene cylinder 210 is placed on one side of the bottom of the housing 1. An acetylene pipe 211 is bolted to one side of the acetylene cylinder 210. One end of the acetylene pipe 211 connects to the interior of the combustion chamber 201. The natural gas nozzle 209... One end of the 09 is fixed to one side of the combustion chamber 201. An acetylene cylinder 210 is bolted to one side of the bottom of the shell 1. An acetylene pipe 211 is connected to one side of the acetylene cylinder 210. One end of the acetylene pipe 211 is connected to the inside of the combustion chamber 201. One end of the natural gas nozzle 209 is fixed to one side of the combustion chamber 201 for the transmission of acetylene. Fuel is transported to the fuel gun 201 through the inlet pipe 203 by the oil pump 204 and atomized and sprayed into the combustion chamber 201. At the same time, the natural gas in the gas tank 206 is pressurized by the intake pump 207 and injected into the natural gas nozzle 209 through the gas delivery pipe 208. The acetylene in the acetylene cylinder 210 is directly introduced into the combustion chamber 201 through the acetylene pipe 211. The three fuels are mixed in the combustion chamber 201 and then ignited, realizing the multi-fuel compatible combustion of heavy oil, natural gas and acetylene gas.

[0030] like Figure 3 As shown, the pulverized coal conveying assembly 3 includes a temporary storage bin 301 disposed on one side of the housing 1 for storing pulverized coal. A conveying fan 302 is placed on one side of the temporary storage bin 301, and a conveying pipe 303 is threadedly connected to one side of the conveying fan 302, which can use wind power to convey pulverized coal. One end of the conveying pipe 303 is connected to the side wall of the combustion chamber 201, and the interior of the conveying pipe 303 is connected to the interior of the combustion chamber 201. The temporary storage bin 301 temporarily stores pulverized coal, and the conveying fan 302 generates airflow to blow the pulverized coal into the side wall of the combustion chamber 201 through the conveying pipe 303. The pulverized coal is uniformly dispersed through pneumatic conveying, and can be co-fired with oil or gas fuel or burned independently, avoiding pulverized coal deposition and improving combustion efficiency.

[0031] like Figure 1 and Figure 4 As shown, an exhaust pipe 4 is bolted to one side of the combustion chamber 201, and an exhaust pump 5 is bolted to the bottom of the exhaust pipe 4. An exhaust pipe 6 is bolted to one side of the exhaust pump 5, and a filter screen 7 is clipped into one end of the exhaust pipe 6. The combustion exhaust gas is actively extracted by the exhaust pump 5 through the exhaust pipe 4. The filter screen 7 installed inside the exhaust pipe 6 intercepts unburned particles and soot, reducing pollutant emissions. At the same time, it maintains a negative pressure environment in the combustion chamber 201 to ensure that the exhaust air is clean and green.

[0032] like Figure 5 and Figure 1 As shown, an oxygen inlet port 8 for supplying oxygen is bolted to one side of the top of the housing 1. A sealing bolt 9 is threaded to one side of the gas inlet port 8. A fixing gasket 10 is snapped into one end of the sealing bolt 9. The gas inlet port 8 at the top of the housing 1 is supplied with oxygen for combustion through an external oxygen source. The sealing bolt 9 and the fixing gasket 10 ensure the airtightness of the interface. The combustion intensity can be enhanced by disassembling as needed, and the complete combustion of fuel under oxygen-rich conditions can be optimized.

[0033] like Figure 1 and Figure 5 As shown, a pressure monitoring valve 11 for monitoring exhaust gas pressure during emission is bolted to the top of the exhaust pipe 6. The pressure monitoring valve 11 is located on one side of the exhaust pump 5 and on one side of the housing 1. The pressure monitoring valve 11 monitors the exhaust gas pressure in the exhaust pipe 6 in real time. If the filter screen 7 is blocked, causing abnormal pressure in the exhaust pipe 6, an alarm will be triggered or the power of the exhaust pump 5 will be automatically adjusted to prevent system overload or pressure imbalance, and to ensure exhaust safety and the stability of the combustion chamber 201.

[0034] like Figure 3 As shown, a restraining ring 12 is welded to one side of the combustion chamber 201, and a fixing ring 13 is welded to the top of the restraining ring 12. The fixing ring 13 has a lifting hole 14 for lifting the combustion chamber 201 inside. The restraining ring 12 and the fixing ring 13 mechanically restrain the combustion chamber 201 to resist high temperature thermal deformation. The lifting hole 14 is connected to external lifting equipment, which facilitates the overall disassembly, maintenance or replacement of the combustion chamber 201 and improves the maintainability of the equipment.

[0035] like Figure 1 As shown, a base 15 is bolted to the bottom of the housing 1, and a self-locking universal wheel 16 is bolted to the bottom of the base 15. A booster plate 17 is welded to one side of the top of the base 15. The booster plate 17 is vertically set on the top of the base 15. The self-locking universal wheel 16 at the bottom of the base 15 enables flexible movement and fixation of the equipment. The booster plate 17 provides a force application fulcrum for easy manual adjustment of the position, ensuring that the burner is convenient to transport and stable during operation, and adapts to the deployment needs of multiple scenarios.

[0036] Specifically, during operation, this kerosene-gas tri-fuel burner works as follows: the combustion chamber 201 at the top of the shell 1 serves as the core combustion zone. Its front-end oil gun 202 is connected to the oil pump 204 via an inlet pipe 203. The oil pump 204 pressurizes and delivers fuel to the oil gun 202, atomizing it and injecting it into the combustion chamber 201. The limit valve 205 continuously adjusts the fuel flow rate to maintain a stable supply. Natural gas is pressurized by the gas cylinder 206 on one side of the combustion chamber 201 via the intake pump 207 and injected into the combustion chamber 201 through the gas pipe 208 and the natural gas nozzle 209. Meanwhile, the acetylene cylinder 210 at the bottom of the shell 1 directly supplies acetylene to the combustion chamber 201 via the acetylene pipe 211. The three fuels mix and ignite within the combustion chamber 201, achieving compatible combustion of oil, gas, and acetylene (see...). Figure 2 and Figure 3 The pulverized coal storage bin 301 generates airflow through the conveying fan 302, blowing pulverized coal into the combustion chamber 201 via the conveying pipe 303 connected to the side wall. This pneumatic conveying prevents pulverized coal deposition and improves dispersion efficiency, supporting the co-combustion or independent combustion of pulverized coal with oil and gas (see...). Figure 3 Combustion exhaust gases are actively extracted by the exhaust pump 5 at the bottom of the exhaust pipe 4. The filter screen 7 inside the exhaust pipe 6 intercepts unburned particles and soot to reduce pollution, while maintaining a negative pressure environment in the combustion chamber 201 (see...). Figure 4 and Figure 5 The gas inlet 8 at the top of the casing 1 is connected to an external oxygen source. Air tightness is ensured by threaded sealing bolts 9 and fixing gaskets 10. Oxygen is replenished as needed to optimize combustion intensity (see...). Figure 5 The air pressure monitoring valve 11 at the top of the exhaust pipe 6 monitors the exhaust gas pressure in real time. If the filter screen 7 is clogged, causing abnormal pressure, it will adjust the power of the exhaust pump 5 or trigger an alarm (see...). Figure 1 , Figure 3 and Figure 5 The restraint ring 12 and fixing ring 13 on the side wall of combustion chamber 201 resist high-temperature thermal deformation, and the top lifting hole 14 facilitates lifting and maintenance (see...). Figure 3 The base 15 at the bottom of the housing 1 is equipped with self-locking casters 16 to move and fix the equipment, and the push plate 17 provides a force-applying fulcrum to assist in manual adjustment of the position, ensuring flexible deployment and operational stability of the burner, and adapting to the needs of multiple scenarios (see...). Figure 1 ).

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A kerosene-gas combustor, comprising a housing (1), characterized in that, A combustion assembly (2) for combustion is provided on one side of the housing (1), and a coal powder conveying assembly (3) for coal powder conveying is provided on one side of the combustion assembly (2). The combustion assembly (2) includes a top combustion chamber (201) disposed on the housing (1). A fuel gun (202) is bolted to the front end of the combustion chamber (201). An inlet pipe (203) is threaded onto one side of the fuel gun (202). A fuel pump (204) is bolted to one side of the inlet pipe (203). The fuel pump (204) is located on one side of the housing (1). A limit valve (205) is provided on one side of the fuel pump (204). A gas cylinder (206) is bolted to one side of the combustion chamber (201). An air intake pump (207) is bolted to one side of the housing (1), and a gas delivery pipe (208) is bolted to the top of the air intake pump (207). A natural gas nozzle (209) is attached to one end of the gas delivery pipe (208). An acetylene cylinder (210) is placed on one side of the bottom of the housing (1). An acetylene pipe (211) is bolted to one side of the acetylene cylinder (210). One end of the acetylene pipe (211) is connected to the interior of the combustion chamber (201). One end of the natural gas nozzle (209) is fixed to one side of the combustion chamber (201).

2. The kerosene-gas combustor according to claim 1, characterized in that, The pulverized coal conveying assembly (3) includes a temporary storage chamber (301) disposed on one side of the housing (1). A conveying fan (302) is placed on one side of the temporary storage chamber (301). A conveying pipe (303) is threadedly connected to one side of the conveying fan (302). One end of the conveying pipe (303) is connected to the side wall of the combustion chamber (201), and the interior of the conveying pipe (303) is in communication with the interior of the combustion chamber (201).

3. A kerosene-gas combustor according to claim 1, characterized in that, An exhaust pipe (4) is bolted to one side of the combustion chamber (201), and an exhaust pump (5) is bolted to the bottom end of the exhaust pipe (4). An exhaust pipe (6) is bolted to one side of the exhaust pump (5), and a filter screen (7) is snapped into one end of the exhaust pipe (6).

4. A kerosene-gas combustor according to claim 1, characterized in that, The top side of the housing (1) is bolted with an oxygen inlet port (8), and a sealing bolt (9) is threaded onto one side of the oxygen inlet port (8). One end of the sealing bolt (9) is clamped with a fixing gasket (10).

5. A kerosene-gas combustor according to claim 3, characterized in that, The top of the exhaust pipe (6) is bolted with a pressure monitoring valve (11) for monitoring the exhaust gas pressure during discharge. The pressure monitoring valve (11) is located on one side of the exhaust pump (5) and on one side of the housing (1).

6. A kerosene-gas combustor according to claim 1, characterized in that, A restraining ring (12) is welded to one side of the combustion chamber (201), and a fixing ring (13) is welded to the top of the restraining ring (12). The fixing ring (13) has a hoisting hole (14) for hoisting the combustion chamber (201).

7. A kerosene-gas combustor according to claim 1, characterized in that, The bottom of the housing (1) is bolted with a base (15), the bottom of the base (15) is bolted with a self-locking universal wheel (16), and a booster plate (17) is welded to one side of the top of the base (15). The booster plate (17) is vertically arranged on the top of the base (15).

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