A constant temperature kiln control method and system

Abstract

The present invention relates to the technical field of kilns, and proposes a constant temperature kiln control method and system, comprising the following steps: in the kiln temperature rise stage, calculating the heat required for the kiln to reach the set temperature, and the required amount of fuel; calculating the amount of combustion-supporting air based on the required heat and fuel; and controlling the combustion equipment of each channel and the amount of fuel delivered, so that the kiln reaches the set temperature; in the material burning stage, calculating the heat required for burning, and the required amount of fuel; calculating the amount of combustion-supporting air based on the required heat and fuel; and controlling the combustion equipment of each channel and the amount of fuel delivered, so that the material is burned to obtain a product. The present invention adopts full life cycle heat control, pre-calculates and controls the heat required for material burning, and recovers the waste heat from burning to preheat the material and dry the material, thereby improving heat utilization, saving energy, and reducing carbon emissions.

Description

Technical Field

[0001] The present invention relates to the technical field of kilns, and in particular to a constant temperature kiln control method and system. Background Art

[0002] A kiln is a furnace used to burn materials into ceramic objects and sculptures, or to fuse enamel to the surface of metal objects. It is usually made of bricks and stones, and can be made into various sizes according to needs. It can be operated by combustible gas, oil or electricity. A kiln usually consists of four parts: a combustion chamber, combustion equipment, combustion-supporting ventilation equipment, and conveying equipment. It uses liquefied gas, coal gas, natural gas, diesel or other light oil as fuel. It has strong firepower, low pollution, and is suitable for firing in different firing atmospheres. It is the most widely used kiln today.

[0003] The existing kiln control system has the following problems:

[0004] 1. The fuel and combustion-supporting air volume are not automatically matched. When the combustion-supporting air volume is too small, the fuel combustion is incomplete, wasting fuel. When the combustion-supporting air volume is excessive, the air volume entering the combustion chamber increases, and the amount of smoke after combustion also increases, the exhaust volume also increases, and the heat loss also increases, wasting fuel.

[0005] 2. Too much or too little material is fed, resulting in the material not being burned through or being over-sintered into agglomerates, making the firing quality fail to meet the requirements.

[0006] 3. The local temperature is high, the kiln is crusted, the material flow is blocked, the crust in the kiln continues to increase during the combustion process, and the firing output and quality are reduced.

[0007] 4. The combustion equipment has poor dispersion and cannot fully burn the fuel, which increases carbon monoxide and easily causes flash explosions in the kiln.

[0008] 5. Inaccurate measurement of the temperature of the combustion chamber results in incomplete burning of the material or over-sintering of agglomerates. Summary of the invention

[0009] The purpose of the present invention is to provide a constant temperature kiln control method and method. The system adopts full life cycle heat control, pre-calculates and controls the heat required for material firing, recovers the waste heat from firing to preheat the material and dry the material, improves heat utilization, saves energy, and reduces carbon emissions.

[0010] In order to achieve the above-mentioned object of the invention, the embodiment of the present invention provides the following technical solutions:

[0011] A constant temperature kiln control method comprises the following steps:

[0012] Step 1: During the kiln temperature rise phase, calculate the heat required for the kiln to reach the set temperature and the amount of fuel required;

[0013] Step 2, calculate the combustion air volume according to the required heat and fuel volume; and control the combustion equipment and the amount of fuel delivered in each channel to make the kiln reach the set temperature;

[0014] Step 3, during the material burning stage, calculate the heat required for burning and the amount of fuel required;

[0015] Step 4, calculate the amount of combustion air based on the required heat and fuel amount; and control the combustion equipment and the amount of fuel delivered in each channel to burn the material to obtain the product.

[0016] A constant temperature kiln control system comprises a fuel supply unit, a gas supply unit, an atomization unit, a combustion unit, a monitoring unit and a combustion-supporting fan; the fuel supply unit, the gas supply unit and the atomization unit are respectively connected to the combustion unit; the monitoring unit comprises a flow meter, a sensor and a transmitter for each unit.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) Use hysteresis control to provide advance control signals, sense the next state of the controlled object in advance, take control measures in advance, and improve control accuracy. Hysteresis control can fully perceive the dynamic characteristics of the controlled object, so it can perform more accurate control and reduce control errors. Hysteresis control has a small delay and less interference to the controlled object, which greatly improves the performance of the control system.

[0019] (2) The fuel and combustion-supporting air volume are automatically matched and controlled to always maintain the most economical combustion range, eliminate the increase of carbon monoxide and ensure safety in the kiln.

[0020] (3) The heat required for material feeding is automatically matched to combustion to ensure that it is not over-burned or under-burned, thus ensuring the quality of material burning.

[0021] (4) Constant temperature control in the kiln prevents crusting in the kiln and ensures production output.

[0022] (5) The burners are evenly distributed in the kiln, the temperature in the kiln is stable, the materials are evenly heated, and the burning quality of the materials is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a flow chart of the method of the present invention;

[0025] Figure 2 This is the logic diagram of the kiln temperature rise stage;

[0026] Figure 3 This is the logic diagram of the material burning stage;

[0027] Figure 4 It is part of the process diagram of the kiln control system;

[0028] Figure 5 It is another part of the kiln control system process diagram.

[0029] Description of main component symbols:

[0030] CL101-Fuel Tank Level Sensor

[0031] AP01-Fuel supply pump A

[0032] AP02-Fuel supply pump B

[0033] AA104-Fuel supply pump A inlet valve

[0034] AA105-Fuel supply pump B inlet valve

[0035] AA106-Fuel supply pump outlet valve

[0036] AA107-Fuel supply return regulating valve

[0037] AA108-Fuel supply return switch valve

[0038] AA109-Gas pipeline inlet switch valve

[0039] AA110-Atomizing air tank inlet switch valve

[0040] AA111~AA119-Fuel branch pipe regulating valve

[0041] AA120~AA128-Atomizing air branch switch valve

[0042] AA129-Atomizing air tank inlet regulating valve

[0043] FT02-Fuel Flow Meter

[0044] FT03-Atomizing Air Flow Meter

[0045] FT04~FT12-Fuel branch flow meter

[0046] CP103-Outlet pressure transmitter

[0047] CP104-Atomizing air main pipe pressure transmitter

[0048] MF101-Mass Flow Meter (Flow Meter Type and Number)

[0049] MF102-Thermal Mass Flow Meter (Flow Meter Type and Number)

[0050] MF103~MF111-Mass flow meter (flow meter type and number)

[0051] TT105~TT122-Firing chamber temperature sensor

[0052] 04FIC~12FIC-Branch fine-tuning flowmeter DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0054] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance, or implying any such actual relationship or order between these entities or operations. In addition, the terms "connected", "connected", etc. can be directly connected between elements, or indirectly connected via other elements.

[0055] Embodiment 1:

[0056] The present invention is achieved through the following technical solutions: Figure 4 , Figure 5 As shown, a constant temperature kiln control system includes: a fuel supply unit, a gas supply unit, an atomization unit, a combustion unit, a monitoring unit, and a combustion-supporting fan.

[0057] The monitoring unit includes flow meters, sensors, transmitters, etc. for each unit.

[0058] The fuel supply unit includes a fuel tank and a fuel supply pump. A fuel tank level sensor CL101 is provided at the fuel tank for real-time monitoring of the amount of fuel (fuel amount) in the fuel tank; the fuel supply pumps are provided with two, namely, fuel supply pump A and fuel supply pump B, and fuel supply pump A inlet valve AA104 and fuel supply pump B inlet valve AA105 are provided between the fuel tank and fuel supply pump A and fuel supply pump B, respectively, as valves for the fuel supply pump to extract fuel; after the output pipelines of the two fuel supply pumps are merged, the fuel supply pump outlet valve AA105 is used as the valve for the fuel supply pump to deliver fuel to the combustion unit; a fuel flow meter FT02 is provided on the pipeline from the fuel supply pump to the combustion unit for real-time monitoring of the amount of fuel delivered to the combustion unit; a mass flow meter MF101 is also provided on the pipeline from the fuel supply pump to the combustion unit for real-time monitoring of the quality; a fuel supply reflux regulating valve AA107 and a fuel supply reflux switch valve AA108 are also provided between the fuel tank and the pipeline after the two fuel supply pumps are merged.

[0059] The gas supply unit directly delivers gas to the combustion equipment. A gas pipeline inlet switch valve AA109 is provided in the pipeline for delivering the gas to control the on-off of the gas.

[0060] The atomizing unit includes an atomizing air storage tank. An outlet pressure transmitter CP103 is provided on the atomizing air storage tank for real-time monitoring of the pressure of the output port of the atomizing air storage tank; an atomizing air main pipe pressure transmitter CP104 is provided on the pipeline from the atomizing air storage tank to the combustion unit for real-time monitoring of the pressure of the output main pipeline of the atomizing air storage tank; an atomizing air storage tank inlet switch valve AA110 and an atomizing air storage tank inlet regulating valve AA129 are provided on the input pipeline of the atomizing air storage tank, which are respectively used to control the switch and size of the air supplied to the atomizing air storage tank; an atomizing air flow meter FT03 and a thermal mass flow meter MF102 are provided on the pipeline from the atomizing air storage tank to the combustion unit, which are respectively used to real-time monitor the flow and quality of the atomizing air delivered from the atomizing air storage tank to the combustion unit.

[0061] The combustion unit includes 9 channels of combustion equipment, namely A1, A2, A3, B1, B2, B3, C1, C2, C3 combustion equipment, and the 9 channels are parallel to each other. In each channel, fuel and gas are transported to the combustion equipment through the fuel pipeline, and atomizing air is transported to the combustion equipment through the oil atomizing air pipeline. Fuel branch pipe regulating valves AA111~AA119 are respectively arranged on each fuel pipeline, which are used to adjust the amount of fuel leading to a single combustion equipment; fuel branch pipe flow meters FT04~FT12 are also respectively arranged on each fuel pipeline, which are used to monitor the amount of fuel transported to the corresponding combustion equipment in real time; mass flow meters MF103~MF111 are also respectively arranged on each fuel pipeline, which are used to monitor the quality of fuel transported to the corresponding combustion equipment in real time; atomizing air branch pipe switch valves AA120~AA128 are arranged on each oil atomizing air pipeline, which are used to control the switch of transporting atomizing air to each combustion equipment.

[0062] Each combustion device corresponds to a firing chamber, and each firing chamber is provided with a firing chamber temperature sensor TT105~TT122 for real-time monitoring of the combustion temperature in the firing chamber; each firing chamber is also provided with a combustion branch pipe flow meter 04FIC~12FIC for real-time monitoring of the existing fuel amount in each firing chamber.

[0063] Based on the above system, the present invention also proposes a constant temperature kiln control method, such as Figure 1 As shown, the following steps are included:

[0064] Step 1: During the kiln temperature rise phase, calculate the heat required for the kiln to reach the set temperature, as well as the amount of fuel required.

[0065] See also Figure 2 When the kiln is turned on, the temperature is room temperature. To burn the material, the kiln must reach a constant temperature before adding the material. Different materials or burning substances require different temperatures, which can be known by looking up tables or historical experience. After determining the required temperature, calculate the heat required for the kiln to reach the set temperature:

[0066] Q1=m×c×Δt-Qs

[0067] Among them, Q1 represents the heat requirement during the temperature rise stage of the kiln; m represents the mass of the refractory material in the kiln; c represents the temperature change coefficient of the refractory material in the kiln; Δt represents the time of temperature change, that is, the time required to reach the set temperature; Qs represents the loss of heat.

[0068] During the kiln temperature rise stage, the fuel needs to be burned and the amount of fuel required to reach the set temperature is calculated:

[0069]

[0070] Among them, H represents the amount of fuel in the kiln temperature rise stage; A represents the fuel calorific value; ρ1 represents the combustion efficiency; ρ2 represents the heat transfer efficiency; Δt represents the time of temperature change. The fuel calorific value can be selected from the corresponding calorific value of diesel, natural gas, coal gas and other light oils.

[0071] Step 2, calculate the amount of combustion air based on the required heat and fuel amount; and control the combustion equipment and the amount of fuel delivered in each channel to make the kiln reach the set temperature.

[0072] By looking up the fuel combustion theory, we can get the standard air volume required for each kilogram of fuel as q1. The fuel volume H is known from step 1, and the excess oxygen coefficient corresponding to the fuel volume H is U. The standard combustion air volume is calculated as:

[0073] q=H×q1×U

[0074] Among them, q represents the standard amount of combustion air.

[0075] Gas state equation: PV=nRT, where P is pressure, V is gas volume, n is the amount of substance, T is absolute temperature, and R is the gas constant.

[0076] The conversion formula between working condition and standard condition is: Where P1 is the standard pressure, V1 is the gas volume under standard pressure, T1 is the absolute temperature (273.15 Kelvin), P2 is the gas pressure under working conditions, V2 is the gas volume under working conditions, and T2 is the gas temperature under working conditions (273.15 Kelvin + actual temperature).

[0077] Based on the gas state equation and the conversion formula between operating and standard conditions, calculate the conversion of the standard condition combustion air quantity to the operating condition combustion air quantity:

[0078]

[0079] Among them, Qg represents the working condition quantity of combustion air; q represents the standard condition quantity of combustion air; Zg represents the compression factor of the working condition; Zn represents the compression factor Zn under the standard condition; Pn represents the standard pressure; Pg represents the relative pressure; Pa represents the standard atmospheric pressure; Pg+Pa represents the absolute pressure under the working condition; Tg represents the working temperature; Tn represents the standard temperature (273.15 degrees Kelvin).

[0080] like Figure 2As shown, according to the calculated combustion air working condition quantity Qg, the air supply volume 01FV of the combustion fan AF101 can be controlled, and the air supply volume can be displayed through 01FIC. After determining the fuel quantity H, the fuel is delivered by controlling the fuel supply return regulating valve AA107, and the delivered fuel quantity can be displayed through 02FIC. Assuming that there are 9 channels, the combustion equipment of each channel is A1, B1, C1, A2, B2, C2, A3, B3, C3 respectively. If the required heat Q1 is within 30% of the designed heat supply, choose to open the A1, B1, C1 combustion equipment; if the required heat Q1 is more than 30% and less than 60% of the designed heat supply, add A2, B2, C2 combustion equipment when A1, B1, C1 are turned on; if the required heat Q1 is more than 60% of the designed heat supply, choose to turn on all combustion equipment. Each combustion equipment not only controls the combustion on or off, but also controls the flame size. It should be noted that this solution does not limit the number of channels of the kiln to 9, and this is only used as an example to facilitate understanding.

[0081] The temperature of each firing chamber is monitored in real time through the firing chamber temperature sensors TT105~TT122. If the temperature is too high or insufficient, the system automatically adjusts the combustion equipment to control the flame size.

[0082] At the same time, the amount of fuel delivered to each channel is controlled by the fuel branch pipe regulating valves AA111~AA119, and the amount of fuel in the firing chamber corresponding to each channel is displayed by the combustion branch pipe flow meters 04FIC~12FIC.

[0083] The atomizing air branch pipe switch valves AA120 to AA128 correspond to the nine combustion devices one by one, and are automatically opened according to the combustion device selected to be opened. For example, when the A1 combustion device is turned on, the atomizing air branch pipe switch valve AA120 is opened, and when the A1 combustion device is turned off, the atomizing air branch pipe switch valve AA120 is closed with a delay.

[0084] Step 3: During the material burning stage, calculate the heat required for burning and the amount of fuel required.

[0085] See also Figure 3 When the kiln reaches the set temperature, add materials for firing and calculate the heat required for firing:

[0086] Q2=m1×c1+Qs

[0087] Among them, Q2 represents the heat required during the material burning stage; m1 represents the mass of the burned material; c1 represents the temperature change coefficient of the material; and Qs represents the loss of heat.

[0088] During the material burning stage, fuel is required to burn. Calculate the amount of fuel required for material burning:

[0089]

[0090] Among them, H1 represents the amount of fuel in the material burning stage; A represents the calorific value of the fuel; ρ1 represents the combustion efficiency; ρ2 represents the heat transfer efficiency.

[0091] Step 4, calculate the amount of combustion air based on the required heat and fuel amount; and control the combustion equipment and the amount of fuel delivered in each channel to burn the material to obtain the product.

[0092] By looking up the fuel combustion theory, we can get the standard air volume required for each kilogram of fuel as q1. The fuel volume H1 is known from step 3, and the excess oxygen coefficient corresponding to the fuel volume H1 is U1. The standard combustion air volume is calculated as:

[0093] q2=H1×q1×U1

[0094] Among them, q2 represents the standard quantity of combustion air.

[0095] Based on the gas state equation and the conversion formula between operating and standard conditions, calculate the conversion of the standard condition combustion air quantity to the operating condition combustion air quantity:

[0096] Gas state equation: PV = nRT;

[0097] Conversion formula between working condition and standard condition:

[0098]

[0099] Among them, Qg represents the working condition quantity of combustion air; q2 represents the standard condition quantity of combustion air; Zg represents the compression factor of the working condition; Zn represents the compression factor Zn under the standard condition; Pn represents the standard pressure; Pg represents the relative pressure; Pa represents the standard atmospheric pressure; Pg+Pa represents the absolute pressure under the working condition; Tg represents the working temperature; Tn represents the standard temperature (273.15 degrees Kelvin).

[0100] As in the kiln temperature rise stage, the air volume 01FV of the combustion-supporting fan AF101 is controlled according to the calculated combustion-supporting air working condition quantity Qg, and the air volume is displayed through 01FIC. After determining the fuel quantity H1, the fuel is delivered by controlling the fuel supply return regulating valve AA107, and the delivered fuel quantity can be displayed through 02FIC. The temperature of each channel is monitored in real time through the firing chamber temperature sensors TT105~TT122. If the temperature is too high or insufficient, the system automatically adjusts the combustion equipment to control the flame size. The amount of fuel delivered to each channel is controlled by the fuel branch pipe regulating valves AA111~AA119, and the fuel amount of each channel is displayed by the combustion branch pipe flowmeters 04FIC~12FIC. The atomizing air branch pipe switch valves AA120~AA128 correspond to the 9 combustion equipment one by one, and are automatically opened according to the combustion equipment selected to be opened.

[0101] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A constant temperature kiln control method, characterized in that: The following steps are involved: Step 1: During the kiln temperature rise phase, calculate the heat required for the kiln to reach the set temperature and the amount of fuel required; The step 1 specifically comprises the following steps: Determine the temperature to be reached by the kiln; Calculate the heat required to reach the set temperature in the kiln: ； Among them, Q1 represents the heat requirement during the temperature rise stage of the kiln; m represents the mass of the refractory material in the kiln; c represents the temperature change coefficient of the refractory material in the kiln; It indicates the time of temperature change, that is, the time required to reach the set temperature; Qs indicates the heat loss; Calculate the amount of fuel needed to reach the set temperature in the kiln: ； Among them, H represents the amount of fuel during the kiln temperature rise stage; A represents the calorific value of the fuel; Indicates combustion efficiency; It represents the heat transfer efficiency; Indicates the time of temperature change; Step 2, calculate the combustion air volume according to the required heat and fuel volume; and control the combustion equipment and the amount of fuel delivered in each channel to make the kiln reach the set temperature; Step 3, during the material burning stage, calculate the heat required for burning and the amount of fuel required; Step 4, calculate the amount of combustion air based on the required heat and fuel amount; and control the combustion equipment and the amount of fuel delivered in each channel to burn the material to obtain the product.

2. A constant temperature kiln control method according to claim 1, characterized in that: In step 2, the step of calculating the amount of combustion air according to the required heat and fuel amount includes: By looking up the fuel combustion theory, we can get the standard air volume required for each kilogram of fuel as q1, and the excess oxygen coefficient corresponding to the fuel volume H is U. The standard combustion air volume is calculated as follows: ； Wherein, q represents the standard quantity of combustion air; Based on the gas state equation and the conversion formula between operating and standard conditions, calculate the conversion of the standard condition combustion air quantity to the operating condition combustion air quantity: ； Among them, Qg represents the working condition quantity of combustion air; q represents the standard condition quantity of combustion air; Zg represents the compression factor of the working condition; Zn represents the compression factor Zn under the standard condition; Pn represents the standard pressure; Pg represents the relative pressure; Pa represents the standard atmospheric pressure; Pg+Pa represents the absolute pressure under the working condition; Tg represents the working temperature; Tn represents the standard temperature.

3. A constant temperature kiln control method according to claim 2, characterized in that: In step 2, the step of controlling the combustion equipment of each channel and the amount of fuel delivered so that the kiln reaches the set temperature includes: According to the calculated combustion air working condition quantity Qg, the air distribution volume 01FV of the combustion air fan AF101 is controlled, and the air distribution volume is displayed through 01FIC; After the fuel quantity H is determined, the fuel is delivered by controlling the fuel supply return regulating valve AA107, and the delivered fuel quantity is displayed through 02FIC; The kiln has N channels, and the combustion equipment in each channel is n1, n2, ..., n N , divide the combustion equipment into three parts. If the required heat Q1 is within 30% of the designed heat supply, choose to open the combustion equipment in the first part; if the required heat Q1 is more than 30% and less than 60% of the designed heat supply, then add the combustion equipment in the second part; if the required heat Q1 is more than 60% of the designed heat supply, choose to open all the combustion equipment; The temperature of each firing chamber is monitored in real time through the firing chamber temperature sensor. If the temperature is too high or insufficient, the system automatically adjusts the combustion equipment to control the flame size. The amount of fuel delivered to each channel is controlled by the fuel branch pipe regulating valve, and the amount of fuel in the burning chamber corresponding to each channel is displayed by the combustion branch pipe flow meter; The N atomizing air branch pipe switch valves correspond to the N combustion devices one by one, and are automatically opened according to the combustion device selected to be opened.

4. A constant temperature kiln control method according to claim 1, characterized in that: The step 3 specifically includes the following steps: When the kiln reaches the set temperature, add materials for firing and calculate the heat required for firing: ; Among them, Q2 represents the heat required in the material burning stage; m1 represents the mass of the burning material; c1 represents the temperature change coefficient of the material; Qs represents the loss of heat; Calculate the amount of fuel required to burn the material: ; Among them, H1 represents the amount of fuel in the material burning stage; A represents the calorific value of the fuel; Indicates combustion efficiency; Represents the heat transfer efficiency.

5. A constant temperature kiln control method according to claim 4, characterized in that: In step 4, the step of calculating the amount of combustion air according to the required heat and fuel amount includes: By looking up the fuel combustion theory, we can get the standard air volume required for each kilogram of fuel as q1, and the excess oxygen coefficient corresponding to the fuel volume H1 is U1. The standard combustion air volume is calculated as follows: ; Among them, q2 represents the standard amount of combustion air; Based on the gas state equation and the conversion formula between operating and standard conditions, calculate the conversion of the standard condition combustion air quantity to the operating condition combustion air quantity: ; Among them, Qg represents the working condition quantity of combustion air; q2 represents the standard condition quantity of combustion air; Zg represents the compression factor of the working condition; Zn represents the compression factor Zn under the standard condition; Pn represents the standard pressure; Pg represents the relative pressure; Pa represents the standard atmospheric pressure; Pg+Pa represents the absolute pressure under the working condition; Tg represents the working temperature; Tn represents the standard temperature.

6. A constant temperature kiln control system, used to implement the method according to any one of claims 1 to 5, characterized in that: It includes a fuel supply unit, a gas supply unit, an atomization unit, a combustion unit, a monitoring unit, and a combustion-supporting fan; the fuel supply unit, the gas supply unit, and the atomization unit are respectively connected to the combustion unit; the monitoring unit includes a flow meter, a sensor, and a transmitter for each unit.

7. A constant temperature kiln control system according to claim 6, characterized in that: The combustion unit comprises a combustion device with N channels, the N channels are parallel to each other, in each channel, fuel and gas are delivered to the combustion device through a fuel pipeline, and atomizing air is delivered to the combustion device through an oil atomizing air pipeline; A fuel branch regulating valve is provided on each fuel pipeline for adjusting the amount of fuel flowing to a single combustion device; a fuel branch flow meter is also provided on each fuel pipeline for real-time monitoring of the amount of fuel delivered to the corresponding combustion device; a mass flow meter is also provided on each fuel pipeline for real-time monitoring of the quality of fuel delivered to the corresponding combustion device; an atomizing air branch switch valve is provided on each oil atomizing air pipeline for controlling the switch of the atomizing air delivered to each combustion device.

8. A constant temperature kiln control system according to claim 7, characterized in that: Each combustion device corresponds to a firing chamber, and each firing chamber is provided with a firing chamber temperature sensor for real-time monitoring of the combustion temperature in the firing chamber; each firing chamber is also provided with a combustion branch pipe flow meter for real-time monitoring of the existing fuel quantity in each firing chamber.

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