Continuous biomass charcoal-steam combined production system

Abstract

The invention discloses a continuous biomass charcoal-steam combined production system which comprises a charcoal-steam combined production furnace, a feeding fire grate used for conveying biomass fuel is installed at the bottom of a hearth of the charcoal-steam combined production furnace, the two sides of the feeding fire grate are each provided with a continuous biomass carbonization system, and a boiler barrel is installed at the top of the hearth of the charcoal-steam combined production furnace; high temperature generated by combustion of biomass fuel in the hearth can be radiated into a pyrolysis chamber of the continuous biomass carbonization system, raw materials in the pyrolysis chamber are carbonized, pyrolysis gas generated in the carbonization process is directly discharged into the hearth of the carbon-gas combined production furnace, flame generated by combustion of biomass is ignited to participate in combustion energy supply, and the biomass is directly discharged into the hearth of the continuous biomass carbonization system. Water in the boiler barrel is converted into steam to be discharged, and joint production of the biochar and the steam is achieved. According to the invention, biomass volatile components are synchronously converted into clean fuel gas and fixed carbon into high-value biochar through a boiler bundling combustion coupling pyrolysis gasification technology, and industrial steam is co-produced by using combustion heat energy, so that all-component resource utilization of biomass is realized.

Description

Technical Field

[0001] The invention relates to a continuous biomass charcoal and steam cogeneration system, belonging to the technical field of renewable energy. Background Art

[0002] my country's annual biomass production exceeds 1 billion tons, but traditional processing technologies have significant limitations. The low calorific value and high moisture content of raw materials like straw limit the scale and efficiency of direct-fired power generation projects. Furthermore, issues such as alkali metal corrosion in boilers and catalyst poisoning drive up environmental costs and lead to heavy reliance on government subsidies. While biomass gasification technology can convert volatile components into combustible gases, tar precipitation can easily clog pipelines, leading to high purification costs. Existing gasification processes are difficult to scale up, hindering resource utilization.

[0003] Traditional carbonization technology also faces bottlenecks. The intermittent smoldering process is inefficient, and the externally heated rotary carbonization furnace is limited by the thermal conductivity of metal, making it difficult to achieve large-scale low-volatile carbon production. Although the internal heating process improves heat transfer efficiency, it is difficult to control the oxygen content in the furnace, and there are risks of explosion and reduced carbon yield. Existing carbonization devices generally have problems such as insufficient collection of combustible exhaust gas and difficulty in handling wood vinegar / wood tar. Sensible heat and latent heat are not efficiently recovered, and the level of clean production is insufficient. If the combustible gases such as methane and hydrogen produced by wood chip distillation are not fully burned, direct emissions will cause pollution. However, if they are burned efficiently and coupled with waste heat utilization, high-value-added steam resources can be co-produced.

[0004] The current market urgently needs a system that can achieve high-value utilization of all biomass components and continuous clean production. This system addresses the challenges of tar processing and thermal energy cascade utilization, simultaneously producing biochar and steam resources, and forming an economical and environmentally friendly circular industrial chain. The development of this type of biochar-steam cogeneration technology has significant practical significance for optimizing energy structures and promoting the resource utilization of agricultural and forestry waste.

[0005] Patent CN110129076A discloses a biomass low-temperature charcoal-gas cogeneration device, a biomass low-temperature charcoal-steam cogeneration device, and a biomass low-temperature charcoal-steam cogeneration method, including a feeding device, a fluidized bed charcoal-gas cogeneration furnace body, a biomass charcoal reheating device, a gas-solid separation device, a blower, and a biomass charcoal cooling and collection device. The biomass low-temperature charcoal-steam cogeneration device includes all the devices of the biomass low-temperature charcoal-gas cogeneration device, as well as a waste heat boiler and a flue gas blower. This invention has the advantages of high-quality biochar produced and low pyrolysis temperature of biomass raw materials. However, it belongs to fluidized bed carbonization, has poor adaptability to carbonized raw materials, is relatively complex in structure, is difficult to operate, and has high maintenance costs.

[0006] Patent CN110160029B discloses a system and method for biomass charcoal and biogas cogeneration. The system comprises a fluidized bed gasifier, a gas-solid separation mechanism, and a gas-fired boiler connected in sequence. The inner wall of the gas-fired staged combustion ember boiler is a water-cooled wall, and a water-cooled wall is provided inside the boiler, dividing the boiler into a combustion chamber and a waste heat recovery chamber, both of which are connected at the bottom. Fuel-staged combustion air ducts are provided within the combustion chamber and the inlet flue, and a heating surface is provided in the waste heat recovery chamber. The gas-fired boiler is connected to a tail flue on the waste heat recovery chamber side for exhausting flue gas. The gas-fired boiler is connected to a steam drum for collecting superheated steam generated by the water-cooled wall, the water-cooled wall, and the superheater. The steam drum supplies saturated steam to the water-cooled wall, the water-cooled wall, and the superheater for circulation. This invention improves the system structure to efficiently produce charcoal particles and superheated steam. However, it also uses a fluidized bed as the carbonization component, which makes the system complex, has high maintenance costs, and produces low-quality biochar.

[0007] In summary, existing biomass processing technologies are limited in scale and efficiency for direct-fired power generation due to the low calorific value and high moisture content of raw materials. Tar precipitation and purification challenges during the gasification process drive up operating costs. Traditional carbonization processes are limited by intermittent production and low heat transfer efficiency, resulting in low carbon yields, explosion hazards, and wasteful waste heat. Furthermore, existing technologies fail to fully utilize biomass components (fixed carbon waste), control combustible tail gas pollution, and achieve cascaded heat recovery. This results in a combination of wasted resources, significant environmental pressures, and poor economics, severely hindering the sustainable development of the biomass resource industry. Summary of the Invention

[0008] In response to the deficiencies in the background technology, the present invention provides a continuous biomass charcoal-steam cogeneration system, which can simultaneously convert biomass volatile components into clean fuel gas and fixed carbon into high-value biochar through boiler bundle combustion coupled pyrolysis gasification technology, and use combustion heat energy to co-generate industrial steam, thereby realizing resource utilization of all components of biomass; solving the problems of low heat utilization rate of existing biomass boilers, resulting in a large amount of energy waste, and existing external heating pyrolysis equipment relying on other energy sources to provide heat sources, low pyrolysis efficiency, and difficulty in treating pyrolysis gas and tar.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions: A continuous biomass charcoal and steam cogeneration system includes a charcoal and steam cogeneration furnace, a feeding grate for conveying biomass fuel is installed at the bottom of the furnace of the charcoal and steam cogeneration furnace, a continuous biomass carbonization system is provided on each side of the feeding grate, a boiler drum is installed at the top of the furnace of the charcoal and steam cogeneration furnace, a plurality of heat exchange tubes are connected to the bottom of the boiler drum, and a steam outlet is provided at the top of the boiler drum; The high temperature generated by the combustion of biomass fuel in the furnace will radiate into the pyrolysis chamber of the continuous biomass carbonization system, carbonizing the raw materials in the pyrolysis chamber. The pyrolysis gas generated in the carbonization process is directly discharged into the furnace of the charcoal-steam cogeneration furnace. When it encounters the flame of the biomass combustion, it is ignited to participate in the combustion energy supply. The water in the boiler drum is converted into steam through the heat exchange tube and discharged through the steam outlet, realizing the joint production of biochar and steam.

[0010] Furthermore, the biomass carbonization system includes a horizontally arranged pyrolysis chamber, a horizontally arranged feed screw at one end of the pyrolysis chamber, and an inclined charcoal discharge screw below the other end of the pyrolysis chamber. The feed screw and the charcoal discharge screw are located outside the furnace of the charcoal-steam cogeneration furnace, and a vertically arranged biochar temporary storage area is provided between the pyrolysis chamber and the charcoal discharge spiral. A material level meter is installed on the top of the biochar temporary storage area.

[0011] Furthermore, the pyrolysis chamber is installed on the refractory wall, and the height of the pyrolysis chamber is consistent with the height of the feed grate.

[0012] Furthermore, a stirring shaft is installed inside the pyrolysis chamber, and the end of the stirring shaft is fixedly connected to the feed screw. The stirring shaft and the feed screw are synchronously driven by the feed motor to rotate; the diameter of the feed screw is smaller than the diameter of the pyrolysis chamber, and a raw material hopper is installed above the end of the feed screw.

[0013] Furthermore, a water cooling jacket is provided on the outside of the charcoal discharge spiral, a cooling water inlet is provided at the bottom of the water cooling jacket, and a cooling water outlet is provided at the top; the top of the charcoal discharge spiral is connected to the charcoal discharge motor, and a charcoal discharge port is provided below the top of the charcoal discharge spiral, and a charcoal collecting box is provided below the charcoal discharge port.

[0014] Furthermore, a plurality of evenly distributed pyrolysis gas exhaust pipes are installed above the pyrolysis chamber, and the pyrolysis gas exhaust pipes are arranged toward the center of the furnace of the coal-steam cogeneration furnace; The pyrolysis gas exhaust pipe includes a pyrolysis gas pipeline, a pyrolysis gas outlet is provided at the top of the pyrolysis gas pipeline, a sealing cover is installed on the pyrolysis gas outlet, the side of the sealing cover is connected to the pyrolysis gas outlet through a sealing cover rotating shaft, and a limiter is installed at the sealing cover rotating shaft.

[0015] Furthermore, air nozzles are provided on the left and right sides and the front of the furnace of the charcoal-steam cogeneration furnace. The air nozzles in the front of the furnace are arranged toward the top of the feed grate, and the air nozzles on both sides of the furnace are arranged toward the pyrolysis gas outlet.

[0016] Furthermore, a pressure sensor is installed at the rear end of the pyrolysis chamber.

[0017] Furthermore, three temperature sensors are installed on both sides of the furnace body of the charcoal-steam cogeneration furnace, and the temperature sensors extend into the pyrolysis chamber to monitor the temperature in the pyrolysis chamber in real time.

[0018] Furthermore, a smoke exhaust pipe is installed on the side wall of the coal-steam cogeneration furnace, and an economizer, a cyclone dust collector, an induced draft fan, a bag dust collector and a chimney are installed on the smoke exhaust pipe in sequence.

[0019] After adopting the above technical solution, the present invention has the following advantages compared with the prior art: 1. The system achieves a self-heating cycle through direct combustion of pyrolysis gas, maintaining the continuous operation of the externally heated reactor without relying on any external heat source. While continuously producing high-quality biochar, it also co-generates industrial steam, significantly improving operational efficiency and reducing energy costs. 2) The system can realize the combustion of pyrolysis gas without cooling. The heat generated by the combustion can be used to generate steam, avoiding the production of tar and reducing pollution problems. The combustion heat energy is efficiently converted into steam energy, eliminating the generation of pollutants at the source, building clean production, and significantly improving the comprehensive energy utilization efficiency. 3) The system combines the boiler with the carbonization system, with a simple and compact structure. The biochar produced is externally heated carbonization, and the continuous carbonization process is stable, which improves the biochar yield and carbonization uniformity, making it have high adsorption and mechanical strength, meeting the industrial demand for high-value carbon materials.

[0020] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 yes Figure 1 Schematic diagram of the cross section at AA in the middle; Figure 3 yes Figure 2 Schematic diagram of the cross section at the middle BB; Figure 4 This is the internal structure diagram of the continuous biomass carbonization system; Figure 5 Schematic diagram of the pyrolysis gas outlet in the open state.

[0022] In the figure, 1-feeding grate, 2-continuous biomass carbonization system, 3-air nozzle, 4-charcoal-steam cogeneration furnace, 5-boiler drum, 6-temperature sensor, 7-exhaust pipe, 8-economizer, 9-cyclone dust collector, 10-induced draft fan, 11-bag dust collector, 12-chimney, 13-heat exchange tube, 14-biomass fuel, 15-refractory wall, 16-steam outlet; 21-feeding motor, 22-raw material hopper, 23-feeding screw, 24-stirring shaft, 25-pyrolysis gas discharge pipe, 26-pyrolysis chamber, 27-level meter, 28-pressure sensor, 29-biochar temporary storage area, 210-water cooling jacket, 211-charcoal discharge screw, 212-cooling water outlet, 213-charcoal discharge motor, 214-charcoal outlet, 215-charcoal collection box, 216-cooling water inlet; 251 - sealing cover, 252 - pyrolysis gas outlet, 253 - sealing cover rotating shaft, 254 - limiter, 255 - pyrolysis gas pipeline. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0024] like Figure 1-Figure 5 As shown together, the present invention provides a continuous biomass charcoal and steam cogeneration system, including a charcoal and steam cogeneration furnace 4, a feed grate 1 for conveying biomass fuel 14 is installed at the bottom of the furnace of the charcoal and steam cogeneration furnace 4, and a set of continuous biomass carbonization system 2 is arranged on each side of the feed grate 1, a boiler drum 5 is installed at the top of the furnace of the charcoal and steam cogeneration furnace 4, a plurality of heat exchange tubes 13 are connected to the bottom of the boiler drum 5, and a steam outlet 16 is provided at the top of the boiler drum 5.

[0025] The high temperature generated by the combustion of biomass fuel 14 in the furnace will radiate into the pyrolysis chamber 26 of the continuous biomass carbonization system 2, carbonizing the raw materials in the pyrolysis chamber 26. The pyrolysis gas generated during the carbonization process is directly discharged into the furnace of the charcoal-steam cogeneration furnace 4. When it encounters the flame of the biomass combustion, it is ignited to participate in the combustion energy supply. The water in the boiler drum 5 is converted into steam through the heat exchange tube 13 and discharged through the steam outlet 16, thereby realizing the combined production of biochar and steam.

[0026] The biomass carbonization system 2 includes a horizontally arranged pyrolysis chamber 26. A horizontally arranged feed screw 23 is located at one end of the pyrolysis chamber 26, and an inclined charcoal discharge screw 211 is located below the other end of the pyrolysis chamber 26. The feed screw 23 and the charcoal discharge screw 211 are located outside the furnace of the charcoal-steam cogeneration furnace 4. A vertically arranged biochar temporary storage area 29 is located between the pyrolysis chamber 26 and the charcoal discharge screw 211. The biochar in the biochar temporary storage area 29 seals the rear end, preventing pyrolysis gas from escaping.

[0027] The pyrolysis chamber 26 is installed on the refractory wall 15. The height of the pyrolysis chamber 26 is consistent with the height of the feed grate 1, ensuring that the heat burned on the feed grate 1 can be radiated into the pyrolysis chamber 26. The pyrolysis chamber 26 is wrapped by the refractory wall 15 on the outside, providing support and protection for it, ensuring durability at high temperatures.

[0028] A stirring shaft 24 is mounted within the pyrolysis chamber 26. The end of the stirring shaft 24 is fixedly connected to a feed screw 23. The stirring shaft 24 and the feed screw 23 are synchronously driven to rotate by a feed motor 21. The diameter of the feed screw 23 is smaller than the diameter of the pyrolysis chamber 26. A raw material hopper 22 is mounted above the end of the feed screw 23.

[0029] The crushed biomass raw materials in the raw material hopper 22 are squeezed and transported to the pyrolysis chamber 26 through the feed screw 23, ensuring the feed sealing. After entering the pyrolysis chamber 26, the raw materials are broken up by the stirring shaft 24 so that they are heated evenly and uniform carbonization is ensured.

[0030] A water cooling jacket 210 is provided outside the charcoal discharge spiral 211. A cooling water inlet 216 is provided at the bottom of the water cooling jacket 210, and a cooling water outlet 212 is provided at the top. The water cooling jacket 210 ensures that the biochar is cooled before being discharged to avoid combustion after encountering air.

[0031] The top of the charcoal screw 211 is connected to the charcoal motor 213. A charcoal outlet 214 is provided below the top of the charcoal screw 211, and a charcoal collecting box 215 is provided below the charcoal outlet 214. The charcoal motor 213 drives the charcoal screw 211 to rotate and discharge charcoal.

[0032] A material level meter 27 is installed on the top of the biochar temporary storage area 29. When the biochar accumulates to the position of the material level meter 27, it indicates that the speed of the charcoal discharge motor 213 should be adjusted to speed up the charcoal discharge speed.

[0033] A plurality of evenly distributed pyrolysis gas exhaust pipes 25 are installed above the pyrolysis chamber 26. The pyrolysis gas exhaust pipes 25 are arranged toward the center of the furnace of the charcoal-steam cogeneration furnace 4. The pyrolysis gas generated in the pyrolysis chamber 26 can be discharged into the furnace of the charcoal-steam cogeneration furnace 4 to participate in combustion.

[0034] The pyrolysis gas exhaust pipe 25 includes a pyrolysis gas pipeline 255, a pyrolysis gas outlet 252 is provided at the top of the pyrolysis gas pipeline 255, a cover 251 is installed on the pyrolysis gas outlet 252, and the side of the cover 251 is connected to the pyrolysis gas outlet 252 through a cover rotating shaft 253, and a limiter 254 is installed on the cover rotating shaft 253.

[0035] The cover 251 can be opened and closed around the cover rotation axis 253. When the pyrolysis gas content in the pyrolysis chamber 26 is insufficient, the cover 251 covers the pyrolysis gas outlet 252 due to its own gravity, preventing other impurities from entering the pyrolysis chamber 26. When the pyrolysis gas accumulates in the pyrolysis chamber 26 and the pressure increases, the cover 251 is pushed open to discharge the pyrolysis gas. The limiter 254 can limit the cover 251 to a certain opening and closing position, so that it can also seal the pyrolysis gas outlet 252 when the pressure is insufficient. A pressure sensor 28 is also installed at the rear end of the pyrolysis chamber 26 to monitor the pressure in the pyrolysis chamber 26 in real time to ensure operational safety.

[0036] Air nozzles 3 are provided on the left and right sides and the front of the furnace of the charcoal-steam cogeneration furnace 4. The air nozzles 3 in the front of the furnace are arranged toward the top of the feed grate 1 to provide oxygen for biomass combustion. The air nozzles 3 on both sides of the furnace are arranged toward the pyrolysis gas outlet 252 to provide sufficient oxygen for the discharged pyrolysis gas to participate in the combustion, thereby ensuring that the raw materials and pyrolysis gas in the furnace can be fully burned and improving thermal efficiency.

[0037] Three temperature sensors 6 are installed on each side of the furnace body of the charcoal-steam cogeneration furnace 4. The temperature sensors 6 extend into the pyrolysis chamber 26 and can monitor the temperature in the pyrolysis chamber 26 in real time. When the temperature cannot meet the carbonization requirements, the feed amount of the feed grate 1 and the air intake of the air nozzle 3 can be increased to increase the carbonization temperature.

[0038] A smoke exhaust pipe 7 is installed on the side wall of the charcoal-steam cogeneration furnace 4, and an economizer 8, a cyclone dust collector 9, an induced draft fan 10, a bag dust collector 11 and a chimney 12 are installed on the smoke exhaust pipe 7 in sequence, which can further realize heat recovery and exhaust gas treatment to ensure the discharge of pollution-free exhaust gas.

[0039] The specific working principle of the present invention is: The present invention installs a feed grate for transporting biomass fuel within a charcoal-gas cogeneration furnace. A continuous biomass carbonization system is installed on either side of the feed grate. The high temperature generated by the biomass fuel burning in the furnace radiates into the pyrolysis chamber of the continuous biomass carbonization system, carbonizing the biomass feedstock continuously transported within the pyrolysis chamber. The pyrolysis gas produced during the carbonization process is directly discharged into the furnace of the charcoal-gas cogeneration furnace. The pyrolysis gas is ignited by the flames of the burning biomass, contributing to the combustion and providing energy. This heats the water in the boiler drum, generating steam for use at the back end. This system enables continuous operation, simultaneously producing biochar and steam, and avoiding the challenges of tar disposal.

[0040] The foregoing is an example of the best mode of carrying out the present invention. Any portion not described in detail herein is common knowledge within the skill of one of ordinary skill in the art. The scope of protection of the present invention is determined by the claims. Any equivalent transformation based on the technical teachings of the present invention is also within the scope of protection of the present invention.

Claims

1. A continuous biomass charcoal and steam cogeneration system, characterized by: The invention comprises a charcoal-steam cogeneration furnace (4), wherein a feed grate (1) for conveying biomass fuel (14) is installed at the bottom of the furnace of the charcoal-steam cogeneration furnace (4), a set of continuous biomass carbonization systems (2) are respectively provided on both sides of the feed grate (1), a boiler drum (5) is installed at the top of the furnace of the charcoal-steam cogeneration furnace (4), a plurality of heat exchange tubes (13) are connected to the bottom of the boiler drum (5), and a steam outlet (16) is provided at the top of the boiler drum (5); The high temperature generated by the combustion of the biomass fuel (14) in the furnace will radiate into the pyrolysis chamber (26) of the continuous biomass carbonization system (2), carbonizing the raw materials in the pyrolysis chamber (26). The pyrolysis gas generated during the carbonization process is directly discharged into the furnace of the charcoal-steam cogeneration furnace (4), where it is ignited by the flame of the biomass combustion and participates in the combustion energy supply. The water in the boiler drum (5) is converted into steam through the heat exchange tube (13) and discharged through the steam outlet (16), thereby realizing the combined production of biochar and steam.

2. The continuous biomass charcoal and steam cogeneration system according to claim 1, characterized in that: The biomass carbonization system (2) includes a pyrolysis chamber (26) arranged in a horizontal direction, a horizontally arranged feed screw (23) is provided at one end of the pyrolysis chamber (26), and an inclined carbon discharge screw (211) is provided below the other end of the pyrolysis chamber (26). The feed screw (23) and the carbon discharge screw (211) are located outside the furnace of the charcoal-steam cogeneration furnace (4). A vertically arranged biochar temporary storage area (29) is provided between the pyrolysis chamber (26) and the carbon discharge screw (211), and a material level meter (27) is installed on the top of the biochar temporary storage area (29).

3. The continuous biomass charcoal and steam cogeneration system according to claim 2, characterized in that: The pyrolysis chamber (26) is installed on the refractory wall (15), and the height of the pyrolysis chamber (26) is consistent with the height of the feed grate (1).

4. The continuous biomass charcoal and steam cogeneration system according to claim 2, characterized in that: A stirring shaft (24) is installed inside the pyrolysis chamber (26), and the end of the stirring shaft (24) is fixedly connected to the feeding screw (23). The stirring shaft (24) and the feeding screw (23) are synchronously driven by the feeding motor (21) to rotate; wherein the diameter of the feeding screw (23) is smaller than the diameter of the pyrolysis chamber (26), and a raw material hopper (22) is installed above the end of the feeding screw (23).

5. The continuous biomass charcoal and steam cogeneration system according to claim 2, characterized in that: A water cooling jacket (210) is provided on the outside of the charcoal discharge spiral (211), a cooling water inlet (216) is provided at the bottom of the water cooling jacket (210), and a cooling water outlet (212) is provided at the top; the top of the charcoal discharge spiral (211) is connected to a charcoal discharge motor (213), a charcoal discharge port (214) is provided below the top of the charcoal discharge spiral (211), and a charcoal collecting box (215) is provided below the charcoal discharge port (214).

6. The continuous biomass charcoal and steam cogeneration system according to claim 2, characterized in that: A plurality of evenly distributed pyrolysis gas exhaust pipes (25) are installed above the pyrolysis chamber (26), and the pyrolysis gas exhaust pipes (25) are arranged toward the center of the furnace of the charcoal-steam cogeneration furnace (4); The pyrolysis gas discharge pipe (25) comprises a pyrolysis gas pipeline (255), a pyrolysis gas outlet (252) is provided at the top of the pyrolysis gas pipeline (255), a sealing cover (251) is installed on the pyrolysis gas outlet (252), a side of the sealing cover (251) is connected to the pyrolysis gas outlet (252) via a sealing cover rotating shaft (253), and a limiter (254) is installed on the sealing cover rotating shaft (253).

7. The continuous biomass charcoal and steam cogeneration system according to claim 6, characterized in that: Air nozzles (3) are provided on the left and right sides and the front of the furnace of the charcoal-steam cogeneration furnace (4). The air nozzles (3) in the front of the furnace are arranged toward the top of the feed grate (1), and the air nozzles (3) on both sides of the furnace are arranged toward the pyrolysis gas outlet (252).

8. The continuous biomass charcoal and steam cogeneration system according to claim 2, characterized in that: A pressure sensor (28) is also installed at the tail end of the pyrolysis chamber (26).

9. The continuous biomass charcoal and steam cogeneration system according to claim 2, characterized in that: Three temperature sensors (6) are installed on each side of the furnace body of the charcoal-steam cogeneration furnace (4). The temperature sensors (6) extend into the pyrolysis chamber (26) to monitor the temperature in the pyrolysis chamber (26) in real time.

10. The continuous biomass charcoal and steam cogeneration system according to claim 1, characterized in that: A smoke exhaust pipe (7) is installed on the side wall of the charcoal-steam cogeneration furnace (4), and an economizer (8), a cyclone dust collector (9), an induced draft fan (10), a bag dust collector (11) and a chimney (12) are installed on the smoke exhaust pipe (7) in sequence.

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