A direct-fired kiln furnace system

Abstract

A direct-fired kiln furnace system belongs to the technical field of kiln furnace equipment, and particularly relates to a direct-fired kiln furnace system. The present invention provides an environmentally friendly direct-fired kiln furnace system. The present invention includes a hydrogen-oxygen gas generation part, a gas buffer part, and a combustion part, and is characterized in that the gas output port of the gas generation part is connected to the gas input port of the gas buffer part, and the gas output port of the gas buffer part is connected to the gas input port of the combustion part.

Description

Technical Field

[0001] The present invention belongs to the technical field of furnace equipment, and particularly relates to a direct-fired furnace system. Background Art

[0002] As is well known, the environmental pollution that threatens the survival of humanity is mainly caused by carbon dioxide, sulfur dioxide, hydrocarbons, nitrogen oxides, etc., which greatly endanger people's physical and mental health. According to domestic and foreign statistical data, more than 75% of the environmental pollution in urban areas comes from the incomplete combustion of fossil and biofuels. The generation of environmental pollution depends on the nature of the fuel used. At present, most fuels are solid fossils, biofuels, and liquid gasoline and diesel. The formal scientific names of their main components are carbon monoxide, carbon dioxide, alkanes with C5 - C12, and alkanes with C15 - C18 respectively. When they burn, they are not sufficiently stable, complete, and thorough, and the content of carbon monoxide, carbon dioxide, sulfur dioxide, hydrocarbons, and nitrogen oxides in the exhaust gas is relatively high, causing serious air pollution. However, it has brought two major hazards that are difficult to solve so far: one is the emission of carbon dioxide and hydrocarbons; the other is the emission of sulfur dioxide and nitrogen oxides, which seriously pollute the living environment on which humanity depends.

[0003] In response to these major problems that have attracted worldwide attention, some countries have taken corresponding measures to reduce emissions. However, so far, the fatal problems have not been fundamentally solved.

[0004] Hydrogen is an energy carrier. People can use the energy stored in hydrogen on a large scale. As a secondary energy source, hydrogen not only has high energy efficiency but also does not produce waste such as carbon dioxide and sulfur dioxide. It has the characteristics of being clean, efficient, widely sourced, and renewable. Developing hydrogen energy is expected to become an important way to improve energy efficiency, reduce pollution emissions, reduce the consumption of fossil and bioenergy, ensure energy security, improve the ecological environment, and achieve diversified energy development.

[0005] Hydrogen energy is regarded as the ultimate energy source for humanity in today's society and is an extremely superior new energy source for the following reasons: ① Water, as a renewable energy source, is inexhaustible. ② After hydrogen burns, it generates water and does not affect the original combustion principle environment. Summary of the Invention

[0006] The present invention aims at the above problems and provides an environmentally friendly direct-fired furnace system.

[0007] To achieve the above object, the present invention adopts the following technical solution. The present invention includes a hydrogen-oxygen gas generation part, a gas buffer part, and a combustion part. It is characterized in that the gas output port of the gas generation part is connected to the gas input port of the gas buffer part, and the gas output port of the gas buffer part is connected to the gas input port of the combustion part.

[0008] As a preferred solution, the gas generation part of the present invention includes a water storage and gas storage tank, an aqueous hydrogen and oxygen gas separator, and a gas buffer tank. The outlet of the gas buffer tank is connected to the gas input port of the gas buffer part;

[0009] A circulating cooling water inlet is provided at the upper end of the water storage and gas storage tank, and a circulating cooling water outlet is provided at the lower end of the aqueous hydrogen and oxygen gas separator. The circulating cooling water outlet is connected to the inlet of the cooling circulation pump, the outlet of the cooling circulation pump is connected to the inlet of the cooler, the outlet of the cooler is connected to the circulating cooling water inlet, and the cooling water inlet of the cooler is connected to the cooling inlet pipe D; the water inlet of the water storage and gas storage tank is connected to the water supply pipe A.

[0010] As another preferred solution, a cooling fan is provided above the aqueous hydrogen and oxygen gas separator of the present invention.

[0011] As another preferred solution, an exhaust solenoid valve is provided on the gas buffer tank of the present invention, and a pressure sensor is provided inside the gas buffer tank.

[0012] As another preferred solution, the gas buffer part of the present invention uses a gas buffer tank.

[0013] As another preferred solution, the gas buffer tanks of the gas buffer part of the present invention are two in series.

[0014] As another preferred solution, a plurality of horizontal metal mesh plates are arranged in the gas buffer tank of the present invention from top to bottom, and the inlet and outlet of the gas buffer tank are arranged on both sides of the upper end of the gas buffer tank.

[0015] As another preferred solution, the present invention further includes a system control part, which includes an electrical primary part, a secondary wiring part, a water pump secondary wiring part, and a PLC wiring part. The control signal input ports of the electrical primary part are respectively connected to the control signal output ports of the secondary wiring part and the control signal output ports of the water pump secondary wiring part. The control signal input ports of the secondary wiring part and the control signal input ports of the water pump secondary wiring part are respectively connected to the control signal output ports of the PLC wiring part.

[0016] As another preferred solution, the primary electrical part of the present invention includes a phase sequence protector. The three-phase power is connected to the phase sequence protector, one end of switch QF1, one end of switch QF3, one end of switch QF4, and one end of switch QF5 respectively through switch QF1. The other end of switch QF2 is successively connected to the motor of the booster pump through the controlled switch of relay KM1 and thermal relay FR1. The other end of switch QF3 is respectively connected to one end of the controlled switch of relay KM2 and one end of the controlled switch of relay KM3. The other end of the controlled switch of relay KM2 is connected to the motor of the cooling circulation pump through thermal relay FR1. The other end of the controlled switch of relay KM3 is connected to the motor of the cooling fan;

[0017] The other end of switch QF4 is connected to the control signal input port of the drain solenoid valve;

[0018] The other end of switch QF5 is respectively connected to the PLC power supply terminal and the input terminal of the AC / DC converter. The output terminal of the AC / DC converter is connected to 24V+ and 24V-.

[0019] As another preferred solution, the secondary wiring part of the present invention includes switch QF1. One end of switch QF1 is connected to the three-phase power, and the other end of switch QF1 is connected to one end of switch QF3. The other end of switch QF3 is respectively connected to one end of the controlled switch of relay KA3, one end of the controlled switch of relay KM3, and one end of the controlled switch of relay KA4. The other end of the controlled switch of relay KA3 is successively connected to N through the control terminal of relay KM2 and FR2. The other end of the controlled switch of relay KA4 is connected to N through the control terminal of relay KM3.

[0020] Secondly, the secondary wiring part of the booster pump of the present invention includes switch QF1. One end of switch QF1 is connected to the three-phase power, and the other end of switch QF1 is connected to one end of switch QF2. The other end of switch QF2 is respectively connected to one end of the controlled switch of relay KM1, the fixed end of the single-pole double-throw switch SA1, and one end of the controlled switch of relay KM1. The other end of the controlled switch of relay KM1 is connected to the motor of the booster pump;

[0021] The first moving end of the single-pole double-throw switch SA1 is respectively connected to one end of switch SB1, one end of the controlled switch of relay KM1, and one end of the control terminal of relay KM1 through the controlled switch of relay KA2. The other end of switch SB1 is respectively connected to one end of switch SBS1 and the other end of the controlled switch of relay KM1. The other end of switch SBS1 is connected to the second moving end of the single-pole double-throw switch SA1;

[0022] The other end of the control terminal of relay KM1 is respectively connected to one end of the indicator light HG and one end of the buzzer FM through thermal relay FR1. The other end of the indicator light HG is connected to the other end of the controlled switch of relay KM1. The other end of the buzzer FM is connected to 501 through the controlled switch of relay KA9.

[0023] In addition, for the PLC wiring part of the present invention, a CPU-SR30 type PLC is adopted. The 1M terminal of the PLC is connected to 24V. The 0.1 - 0.7 and 1.0 terminals of the 1M group of the PLC are respectively connected to the controlled switches of switch SA1, relay KM1, relay KM3, relay KM2, relay KA7, and relay KA8, and thermal relays FR1 and FR2 correspondingly.

[0024] The 0.0 - 0.3 terminals of the 1L group of the PLC are respectively connected to the control terminals of relays KA1 - KA4 correspondingly. The 0.4 - 0.7 terminals of the 2L group of the PLC are respectively connected to the control terminals of relays KA5 - KA8 correspondingly. The 1.0 terminal of the 3L group of the PLC is connected to the control terminal of relay KA9.

[0025] The 0 + and 0 - ports of the PLC are connected to the temperature sensor. The 1 + and 1 - ports of the PLC are connected to the pressure sensor. The 2 + and 2 - ports of the PLC are connected to the pressure sensor.

[0026] Advantages of the present invention.

[0027] In the present invention, hydrogen and oxygen are provided to the combustion part through the hydrogen and oxygen gas production part and the gas buffer part. Hydrogen catalytic cracking combustion is assisted by oxygen, which increases the energy utilization rate, improves the combustion efficiency, and reduces the emission of harmful gases. At the same time, the raw material resources are abundant. Hydrogen can be produced from water, and water is the most abundant resource on the earth. Description of the drawings

[0028] The following further describes the present invention in conjunction with the drawings and specific embodiments. The protection scope of the present invention is not limited only to the description of the following content.

[0029] Figure 1 is the structural schematic diagram of the present invention.

[0030] Figure 2 is the internal structural schematic diagram of the burner of the present invention.

[0031] Figure 3 is the external view of the burner of the present invention.

[0032] Figure 4 is the exploded view of the burner of the present invention.

[0033] Figure 5 is the primary electrical circuit schematic diagram of the present invention.

[0034] Figure 6 is the secondary wiring circuit schematic diagram of the present invention.

[0035] Figure 7 is the secondary wiring circuit schematic diagram of the water addition pump of the present invention.

[0036] Figure 8 、9 Figure 10 is the schematic circuit diagram of the PLC wiring part of the present invention.

[0037] Figure 11 Figure 5 is the terminal wiring diagram of the present invention.

[0038] Figure 12 Figure 9 is the wiring diagram of the aviation plug (for transmitting pressure, water level, and temperature information) of the present invention. Specific Embodiments

[0039] As shown in the figure, the present invention includes a hydrogen-oxygen gas generation part, a gas buffer part, and a combustion part. The gas output port of the gas generation part is connected to the gas input port of the gas buffer part, and the gas output port of the gas buffer part is connected to the gas input port of the combustion part.

[0040] The gas generation part includes a water and gas storage tank, an aqueous agent hydrogen-oxygen gas separator, and a gas buffer tank. The outlet of the gas buffer tank is connected to the gas input port of the gas buffer part;

[0041] A circulating cooling water inlet is provided at the upper end of the water and gas storage tank, and a circulating cooling water outlet is provided at the lower end of the aqueous agent hydrogen-oxygen gas separator 16. The circulating cooling water outlet is connected to the inlet of the cooling circulation pump, the outlet of the cooling circulation pump 19 is connected to the inlet of the cooler, the outlet of the cooler 13 is connected to the circulating cooling water inlet, and the cooling water inlet of the cooler is connected to the cooling inlet pipe D. The water inlet of the water and gas storage tank is connected to the water supply pipe A.

[0042] The gas generation part of the present invention can use the equipment with the patent number ZL200810229903.1 and the name "aqueous agent hydrogen-oxygen source integrated extraction and multi-purpose machine device". There is only one difference between the equipment of the gas generation part of this application and the equipment with the patent number ZL200810229903.1 and the name "aqueous agent hydrogen-oxygen source integrated extraction and multi-purpose machine device", that is, the cooling method of the equipment of the gas generation part of this application uses water cooling, while the cooling method of this patent uses air cooling. Therefore, only a slight improvement is needed on the equipment of this patent to obtain the equipment of the gas generation part of this application. The improvement method is as follows: An additional circulating cooling water inlet 15 is provided at the upper end of the water and gas storage tank, and an additional circulating cooling water outlet 20 is provided at the lower end of the aqueous agent hydrogen-oxygen gas separator (i.e., the aqueous agent hydrogen-oxygen gas separation tank in the above patent). The circulating cooling water outlet is connected to the inlet of the cooling circulation pump, the outlet of the cooling circulation pump is connected to the inlet of the cooler, the outlet of the cooler is connected to the circulating cooling water inlet, and the cooling water inlet of the cooler is connected to the cooling inlet pipe D. The gas buffer tank at the upper end of the water and gas storage tank of the present invention is equivalent to the gas distribution tank in the above patent and is used to mix hydrogen-oxygen gas together.

[0043] When the equipment and environmental temperature are higher than the set value, start the cooling circulation pump for circulating cooling.

[0044] A cooling fan is provided above the aqueous hydrogen-oxygen gas separator. When the temperature of the aqueous hydrogen-oxygen gas separator is too high, the cooling fan is started.

[0045] An evacuation solenoid valve is provided on the gas buffer tank 14 at the upper end of the water and gas storage tank (the operation of the evacuation solenoid valve is controlled by QF4), and a pressure sensor is provided inside the gas buffer tank. When the pressure in the gas buffer tank is too high, the evacuation solenoid valve is controlled to open.

[0046] The combustion part uses a burner 21.

[0047] The burner includes a housing 5, on which an air intake adjustment port 4 is provided (the blower blows air inward through the intake adjustment port 4 to adjust the air volume. External threads can be provided on the outer wall of the intake adjustment port 4). Inside the housing 5, a sleeve 11 and a conductive column 22 are provided (a ceramic housing can be used on the outside of the conductive column, and a conductor is provided inside). Inside the sleeve 11, a gas booster mixer 10 is provided. The inlet of the gas booster mixer 10 is connected to an inlet pipe 7 (the inlet pipe 7 is connected to the gas output port of the gas buffer part for inputting hydrogen-oxygen gas). The outlet of the gas booster mixer 10 is connected to a gas mixer 9 (after gas mixing, the combustion value of hydrogen can be reduced to achieve combustion balance and adjustability);

[0048] The inner end of the conductive column is placed inside the sleeve 11, and the outer end of the conductive column is placed outside the housing 5;

[0049] An ignition head 2 is provided at the inner end of the conductive column, and an igniter power supply interface 1 is provided at the outer end of the conductive column. One igniter power supply interface 1 is connected to the positive electrode, and the other igniter power supply interface 1 is connected to the negative electrode. Electricity is transmitted through the conductive column to the two tungsten alloy ignition heads 2 for ignition. The sleeve 11 plays a role in storing heat.

[0050] The inlet pipe 7 is connected to the fuel inlet pipe 25 (which can input fuel oil, methanol or gas) and the gas output pipe of the gas buffer part through a three-way pipe respectively.

[0051] The ignition head 2 uses a tungsten alloy ignition head.

[0052] An outer shield 3 is provided at the intake end of the burner (the outer shield 3 can be welded to the housing 5). Conductive columns and inlet pipe perforations are provided on the outer shield 3. The conductive columns and the outer shield 3 can be connected by fasteners (nuts).

[0053] The gas mixer 9 is provided at the front end of the gas booster mixer 10 and is connected to a fixing plate 8. The fixing plate 8 (the fixing plate 8 can be welded to the sleeve 11) is provided at the front end of the sleeve 11. Inlet pipes and conductive column perforations are provided on the fixing plate 8.

[0054] A mesh plate 12 is provided at the rear end of the casing 11 (the mesh plate 12 can be welded to the casing 11). By providing the mesh plate 12, a uniform heat radiation effect can be achieved.

[0055] The mesh holes of the mesh plate 12 are rectangular holes.

[0056] A plurality of through holes are arranged on the casing 11. The through holes facilitate the timely replenishment of fresh air.

[0057] A fixed flange 6 is provided on the outer wall of the outer casing 5.

[0058] The flame end of the burner is placed inside the heat absorption chamber (the heat absorption chamber is the inner cavity part of the kiln for firing products).

[0059] The gas buffer part uses a gas buffer tank.

[0060] The gas buffer tanks 17 and 18 of the gas buffer part are in series.

[0061] A plurality of horizontal metal mesh plates are arranged in the gas buffer tank from top to bottom, and the inlet and outlet of the gas buffer tank are arranged on both sides of the upper end of the gas buffer tank. The plurality of horizontal metal mesh plates can further reduce the gas output speed.

[0062] The gas buffer tank can also adopt a cavity structure. The gas enters from the gas buffer tank inlet, accumulates in the gas buffer tank, and then is output from the gas buffer tank outlet to ensure the stability of the gas output.

[0063] The gas booster mixer 10 adopts a spiral tube structure from front to back. The flame burns to increase the temperature and pressure, and the combustion is more complete, increasing the heat radiation distance.

[0064] The gas mixer 9 includes a hollow cavity, the hollow cavity is communicated with the outlet of the gas booster mixer 10, and a burner port is provided at the rear end of the hollow cavity.

[0065] The burner ports are multiple and are evenly distributed along the circumferential direction.

[0066] The present invention further includes a system control part, which includes an electrical primary part, a secondary wiring part, a secondary wiring part of the water addition pump, and a PLC wiring part. The control signal input ports of the electrical primary part are respectively connected to the control signal output ports of the secondary wiring part and the control signal output ports of the secondary wiring part of the water addition pump. The control signal input ports of the secondary wiring part and the control signal input ports of the secondary wiring part of the water addition pump are respectively connected to the control signal output ports of the PLC wiring part.

[0067] The primary electrical part includes a phase sequence protector. The three-phase power is connected to the phase sequence protector, one end of switch QF1, one end of switch QF3, one end of switch QF4, and one end of switch QF5 respectively through switch QF1. The other end of switch QF2 is connected to the motor of the water adding pump through the controlled switch of relay KM1 and thermal relay FR1 in sequence. The other end of switch QF3 is connected to one end of the controlled switch of relay KM2 and one end of the controlled switch of relay KM3 respectively. The other end of the controlled switch of relay KM2 is connected to the motor of the cooling circulation pump through thermal relay FR1. The other end of the controlled switch of relay KM3 is connected to the motor of the cooling fan.

[0068] The other end of switch QF4 is connected to the control signal input port of the drain solenoid valve.

[0069] The other end of switch QF5 is connected to the PLC power supply terminal and the input terminal of the AC / DC converter respectively. The output terminal of the AC / DC converter is connected to 24V+ and 24V-.

[0070] The secondary wiring part includes switch QF1. One end of switch QF1 is connected to the three-phase power, and the other end of switch QF1 is connected to one end of switch QF3. The other end of switch QF3 is connected to one end of the controlled switch of relay KA3, one end of the controlled switch of relay KM3, and one end of the controlled switch of relay KA4 respectively. The other end of the controlled switch of relay KA3 is connected to N through the control terminal of relay KM2 and FR2 in sequence. The other end of the controlled switch of relay KA4 is connected to N through the control terminal of relay KM3.

[0071] The secondary wiring part of the water adding pump includes switch QF1. One end of switch QF1 is connected to the three-phase power, and the other end of switch QF1 is connected to one end of switch QF2. The other end of switch QF2 is connected to one end of the controlled switch of relay KM1, the fixed terminal of the single-pole double-throw switch SA1, and one end of the controlled switch of relay KM1 respectively. The other end of the controlled switch of relay KM1 is connected to the motor of the water adding pump (there are two water adding pumps in the circuit diagram. One water adding pump is connected to the water injection port of the ZL200810229903.1 device for supplying water to the water storage and gas storage tank. The other water adding pump is connected to the cooling water inlet pipe D for supplying water to the cooler).

[0072] The first moving end of the single-pole double-throw switch SA1 is connected to one end of switch SB1, one end of the controlled switch of relay KM1, and one end of the control terminal of relay KM1 respectively through the controlled switch of relay KA2. The other end of switch SB1 is connected to one end of switch SBS1 and the other end of the controlled switch of relay KM1 respectively. The other end of switch SBS1 is connected to the second moving end of the single-pole double-throw switch SA1.

[0073] The other end of the control terminal of relay KM1 is respectively connected to one end of indicator light HG and one end of buzzer FM (which alarms for abnormal temperature, water level, and pressure) through thermal relay FR1. The other end of indicator light HG is connected to the other end of the controlled switch of relay KM1. The other end of buzzer FM is connected to 501 through the controlled switch of relay KA9.

[0074] For the PLC wiring part, a CPU-SR30 type PLC is adopted. The 1M terminal of the PLC is connected to 24V. The 0.1 - 0.7 and 1.0 terminals of the 1M group of the PLC are respectively connected to switch SA1, the controlled switch of relay KM1, the controlled switch of relay KM3, the controlled switch of relay KM2, the controlled switch of relay KA7, the controlled switch of relay KA8, thermal relays FR1 and FR2 correspondingly.

[0075] The 0.0 - 0.3 terminals of the 1L group of the PLC are respectively connected to the control terminals of relays KA1 - KA4 correspondingly. The 0.4 - 0.7 terminals of the 2L group of the PLC are respectively connected to the control terminals of relays KA5 - KA8 correspondingly. The 1.0 terminal of the 3L group of the PLC is connected to the control terminal of relay KA9.

[0076] The 0 + and 0 - ports of the PLC are connected to a temperature sensor (used to detect the temperature of the circulating cooling water, which can be set at the outlet of the circulating cooling water). The 1 + and 1 - ports of the PLC are connected to a pressure sensor (used to detect the hydrogen storage pressure, which can be set on the hydrogen storage tank of the gas production part (the hydrogen storage tank of ZL200810229903.1)). The 2 + and 2 - ports of the PLC are connected to a pressure sensor (used to detect the oxygen storage pressure, which can be set on the oxygen storage tank of the gas production part (the oxygen storage tank of ZL200810229903.1)).

[0077] The present invention relates to a hydrogen-oxygen self-provided gas direct-firing kiln furnace system, which has high energy conversion efficiency, energy conservation, emission reduction, and low operating cost, and is applicable to endothermic, heat exchange, roasting system equipment such as horizontal kilns, vertical kilns, and tunnel kilns.

[0078] "Hydrogen water seal liquid supplement" and "oxygen water seal liquid supplement" in the PLC wiring diagram can be applied to the situations of respectively outputting hydrogen and oxygen. For example, removing the "gas distribution tank" of the equipment of ZL200810229903.1 and directly outputting oxygen and hydrogen from the oxygen output isolation tank and the hydrogen output isolation tank. The output pipe of the oxygen output isolation tank enters the oxygen water seal tank below the liquid level through the upper inlet of the oxygen water seal tank, and the upper outlet of the oxygen water seal tank is connected to the oxygen output pipe. The output pipe of the hydrogen output isolation tank enters the hydrogen water seal tank below the liquid level through the upper inlet of the hydrogen water seal tank, and the upper outlet of the hydrogen water seal tank is connected to the hydrogen output pipe. When the liquid in the water seal tank is insufficient, "hydrogen water seal liquid supplement" and "oxygen water seal liquid supplement" are carried out.

[0079] The "generator" in the PLC wiring diagram refers to the "aqueous hydrogen-oxygen gas separator" in the structural diagram.

[0080] The "hydrogen solenoid valve venting" and "oxygen solenoid valve venting" in the PLC wiring diagram refer to the solenoid valves on the hydrogen storage tank and oxygen storage tank of ZL200810229903.1.

[0081] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the usage requirements, it is within the protection scope of the present invention.

Claims

1. A direct-fired kiln furnace system, comprising a hydrogen-oxygen gas generation part, a gas buffer part and a combustion part, characterized in that The gas output port of the gas generation part is connected to the gas input port of the gas buffer part, and the gas output port of the gas buffer part is connected to the gas input port of the combustion part; The gas generation part includes a water storage and gas storage tank, an aqueous agent hydrogen-oxygen gas separator, and a gas buffer tank. The outlet of the gas buffer tank is connected to the gas input port of the gas buffer part; A circulating cooling water inlet is provided at the upper end of the water storage and gas storage tank, and a circulating cooling water outlet is provided at the lower end of the aqueous agent hydrogen-oxygen gas separator. The circulating cooling water outlet is connected to the inlet of the cooling circulation pump, the outlet of the cooling circulation pump is connected to the inlet of the cooler, the outlet of the cooler is connected to the circulating cooling water inlet, and the cooling water inlet of the cooler is connected to the cooling inlet pipe D; the water inlet of the water storage and gas storage tank is connected to the water supply pipe A; The gas buffer part uses a gas buffer tank; The gas buffer tanks of the gas buffer part are two in series; A plurality of horizontal metal mesh plates are arranged in the gas buffer tank from top to bottom, and the inlet and outlet of the gas buffer tank are arranged on both sides of the upper end of the gas buffer tank; It also includes a system control part, which includes an electrical primary part, a secondary wiring part, a water pump secondary wiring part, and a PLC wiring part. The control signal input ports of the electrical primary part are respectively connected to the control signal output ports of the secondary wiring part and the water pump secondary wiring part. The control signal input ports of the secondary wiring part and the water pump secondary wiring part are respectively connected to the control signal output ports of the PLC wiring part; The combustion part includes a burner, which includes a housing (5). An air intake adjustment port (4) is provided on the housing (5). The fan blows air inward through the intake adjustment port (4) to adjust the air volume. A sleeve (11) and a conductive column (22) are arranged inside the housing (5). A gas pressurization mixer (10) is arranged inside the sleeve (11). The inlet of the gas pressurization mixer (10) is connected to the inlet pipe (7). The inlet pipe (7) is connected to the gas output port of the gas buffer part for inputting hydrogen-oxygen gas. The outlet of the gas pressurization mixer (10) is connected to the gas mixer (9); the inner end of the conductive column is placed inside the sleeve (11), and the outer end of the conductive column is placed outside the housing (5); an ignition head (2) is provided at the inner end of the conductive column, and an igniter power supply interface (1) is provided at the outer end of the conductive column; the inlet pipe (7) is respectively connected to the fuel inlet pipe (25) and the gas output pipe of the gas buffer part through a three-way pipe. The fuel inlet pipe (25) inputs fuel oil, methanol, or gas; An evacuation solenoid valve is provided on the gas buffer tank (14) at the upper end of the water storage and gas storage tank, and a pressure sensor is arranged inside the gas buffer tank; when the pressure inside the gas buffer tank is too high, the evacuation solenoid valve is controlled to open; The gas pressurization mixer (10) adopts a spiral pipe structure from front to back; The gas mixer (9) includes a hollow cavity, the hollow cavity is communicated with the outlet of the gas pressurization mixer (10), and a spray combustion port is provided at the rear end of the hollow cavity; The gas mixer (9) is arranged at the front end of the gas booster mixer (10) and is connected to the fixed disk (8). The fixed disk (8) is arranged at the front end of the sleeve (11). The fixed disk (8) is provided with an air inlet pipe and conductive column perforations.

2. The direct-fired kiln furnace system according to claim 1, characterized in that A cooling fan is arranged above the aqueous hydrogen-oxygen gas separator.

3. The direct-fired kiln furnace system according to claim 1, characterized in that The primary electrical part includes a phase sequence protector. Three-phase electricity is respectively connected to the phase sequence protector, one end of switch QF2, one end of switch QF3, one end of switch QF4, and one end of switch QF5 through switch QF1. The other end of switch QF2 is sequentially connected to the motor of the water addition pump through the controlled switch of relay KM1 and thermal relay FR1. The other end of switch QF3 is respectively connected to one end of the controlled switch of relay KM2 and one end of the controlled switch of relay KM3. The other end of the controlled switch of relay KM2 is connected to the motor of the cooling circulation pump through thermal relay FR1. The other end of the controlled switch of relay KM3 is connected to the motor of the cooling fan; The other end of switch QF4 is connected to the control signal input port of the evacuation solenoid valve; The other end of switch QF5 is respectively connected to the PLC power supply terminal and the input terminal of the AC / DC converter. The output terminal of the AC / DC converter is connected to 24V+ and 24V-.

4. The direct-fired kiln furnace system according to claim 1, characterized in that The secondary wiring part includes switch QF1. One end of switch QF1 is connected to three-phase electricity. The other end of switch QF1 is connected to one end of switch QF3. The other end of switch QF3 is respectively connected to one end of the controlled switch of relay KA3, one end of the controlled switch of relay KM3, and one end of the controlled switch of relay KA4. The other end of the controlled switch of relay KA3 is sequentially connected to N through the control terminal of relay KM2 and FR2. The other end of the controlled switch of relay KA4 is connected to N through the control terminal of relay KM3.

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