Biomass steam boiler capable of intelligently and accurately controlling temperature and intelligent temperature control system thereof

Abstract

The invention belongs to the technical field of steam boilers, and particularly relates to an intelligent and accurate temperature control biomass steam boiler and an intelligent temperature control system thereof.The biomass steam boiler comprises a boiler body, and the boiler body internally comprises a combustion chamber, a steam heat exchanger, a feeding box, a feeding pipe, an auger, an air pump unit and a control box; the combustion chamber is mounted at the bottom of the furnace body; the steam heat exchanger is mounted above the combustion chamber in the furnace body; along with rotation of the spiral blade, the telescopic plate is guided along the inclined surface of the spiral blade to be extruded, so that the bottom of the telescopic plate ascends and shrinks, the purpose that the telescopic plate scrapes the surface of the spiral blade and fuel on the surface is achieved till the telescopic plate scrapes the fuel from the top of the spiral blade, and the effect that the fuel is thrown on the lower breast board is achieved; part of fuel is shaken and broken, the surface area of the broken fuel is increased, the contact area of the broken fuel and air is increased, more sufficient combustion is completed, the combustion efficiency is improved, and therefore the energy efficiency of the steam heat exchanger is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of steam boilers, and in particular to a biomass steam boiler with intelligent and precise temperature control and an intelligent temperature control system thereof. Background Art

[0002] Drying is a critical step in tea processing. A hot air furnace is a commonly used drying equipment. Its working principle is to use the heat generated by burning fuel to send hot air into the drying room through a wind pump unit, so that the tea leaves gradually lose moisture under the action of hot air, thereby achieving the purpose of drying. The hot air furnace is mainly composed of a combustion chamber, a heat exchanger, an air pump unit and a control system. The heat generated by the combustion of fuel in the combustion chamber can provide stable and uniform steam through the steam generator, ensuring that the tea is evenly heated during the processing process and fully releasing the aroma and taste of the tea. This not only improves the quality and taste of the tea, but also meets the consumer's demand for high-quality tea. Hot air furnaces can be divided into solid, liquid and gas according to the fuel. Solid fuels such as biomass fuels are fuels made from agricultural and forestry waste. The combustion of biomass hot air furnaces reduces the production of toxic and harmful gases, and the carbon dioxide after combustion can be absorbed by plants and converted into new biomass, which meets modern environmental protection needs. Compared with traditional oil and gas hot air furnaces, biomass hot air furnaces have lower operating costs. During the use of biomass hot air furnace: Unstable fuel quality: The moisture content, calorific value, ash content and other parameters of biomass fuel fluctuate greatly, resulting in unstable combustion, low thermal efficiency, and even flameout. Differences in fuel from different batches may also cause combustion problems; Uneven fuel feeding: Failure of the feeding system or design defects can lead to uneven fuel feeding, causing excessive or weak local combustion, affecting combustion efficiency and furnace life; Difficulty in ignition: The fuel moisture content is too high or the fuel quality is poor, which makes ignition difficult and requires a long start-up time. Summary of the invention

[0003] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a biomass steam boiler with intelligent and precise temperature control and an intelligent temperature control system thereof.

[0004] The technical solution adopted by the present invention to solve its technical problems is: the present invention proposes a biomass steam boiler with intelligent and precise temperature control and its intelligent temperature control system, including a furnace body, the furnace body including a combustion chamber, a steam heat exchanger, a feeding box, a feeding pipe, an auger, an air pump unit and a control box; the combustion chamber is installed at the bottom of the furnace body, and a steam heat exchanger is installed above the combustion chamber in the furnace body, and the steam heat exchanger is used for heating and drying work of the hot blast furnace; one end of the feeding pipe extends into the combustion chamber, and the other end is equipped with a feeding box, and an auger is installed in the feeding pipe; an air pump unit and a control box are installed on one side of the furnace body, the air pump unit supplies air to the hot blast furnace, and the control box is used to control the operation of the hot blast furnace; and also includes: An exhaust duct, wherein the exhaust duct is arranged on the top of the feeding box, and one end of the exhaust duct is connected to the inside of the feeding box, and the other end is connected to the exhaust end of the air pump unit; a rotating shaft is rotatably connected in the feeding box, and the rotating shaft is connected to the motor arranged on the top of the feeding box, and one end of the rotating shaft is connected to one end of the auger through a clutch, so that the rotating shaft drives the auger to rotate intermittently; a spiral blade is fixedly connected to the rotating shaft, and spiral grooves are evenly opened on the spiral blades, the cross-section of the spiral grooves is trapezoidal, the connecting parts of adjacent spiral grooves are sharp, and extrusion holes are evenly arranged in the spiral grooves; an upper guardrail and a lower guardrail are respectively fixedly connected in the feeding box, and the upper guardrail is located above the spiral blade, and the lower guardrail is close to the bottom of the spiral blade, the rotating shaft passes through the upper guardrail and the lower guardrail, and the upper filter holes and the lower filter holes are respectively opened on the upper guardrail and the lower guardrail; a telescopic plate is installed at the bottom of the upper guardrail, and the bottom of the telescopic plate scratches the surface of the spiral blade; A combustion plate is installed in the combustion chamber and is arc-shaped. An ash pipe is provided at the axial position of the combustion plate, and one end of the feed pipe faces the combustion plate. An ignition assembly is installed on the combustion plate, and air vents are evenly provided on the top of the combustion plate. The interior of the hollow structured combustion plate is connected to the air pump unit through a pipeline.

[0005] Preferably, an extrusion rod is evenly provided on one side of the telescopic plate, the extrusion rod is installed horizontally, and a spring is provided between the extrusion rod and the telescopic plate, so that the extrusion rod slides into the telescopic plate; the end of the extrusion rod away from the telescopic plate is rotatably connected to the extrusion wheel, and the outer ring of the extrusion wheel contacts the inner wall of the spiral groove; the bottom of the telescopic plate is slidably connected to a lifting rod through a spring, the contact surface between the extrusion rod and the lifting rod is an inclined surface, and a collection box is hinged at the bottom of the lifting rod through a torsion spring; a closed groove is provided at the bottom of the telescopic plate, and the collection box is inserted into the closed groove, and a sensor is provided at the bottom of the telescopic plate located in the closed groove; when the extrusion wheel contacts the spiral blade, the lifting rod is compressed to drive the collection box to descend, and the collection box is located between the bottom of the spiral blade and the lower railing; when the extrusion wheel rises along the spiral blade, the collection box is flipped by the bottom of the spiral blade, and then reset by the torsion spring, and the reset collection box is located in the spiral groove.

[0006] Preferably, the outer ring of the extrusion wheel is evenly provided with extrusion blocks, and the cross-section of the extrusion blocks is trapezoidal, and the extrusion blocks are inserted into the extrusion holes.

[0007] Preferably, the telescopic plate includes plate No. 1 and plate No. 2, and plate No. 1 with a hollow structure is installed at the bottom of the upper railing, plate No. 2 is slidably connected to the bottom of plate No. 1 through a spring, and the extrusion rod, extrusion wheel, lifting rod, collection box and closed groove are located on plate No. 2; a jet tube is provided in plate No. 2, and one end of the jet tube faces the sensor, and the other end is connected to the interior of plate No. 1; a slide groove is provided at the bottom of plate No. 2, and a slide rod is slidably connected in the slide groove, one end of the slide rod is located in the slide groove, and the other end is connected to the lifting rod; a cleaning sleeve is provided at the end of the slide rod away from the lifting rod, and a cleaning cloth is provided in the cleaning sleeve, and the sensor is located at the center of the cleaning sleeve; when the cleaning sleeve descends, the cleaning sleeve covers the sensor.

[0008] Preferably, the bottom of the upper baffle is rotatably connected to a grille plate, and a torsion spring is provided between the grille plate and the upper baffle; a guide block is provided on one side of the second plate, a guide rod is provided at the bottom of the grille plate, and the bottom of the guide rod contacts the wavy surface of the guide block; the holes in the upper filter hole and the grille plate form an overall inverted trapezoidal hole.

[0009] Preferably, a hydraulic tank is provided in the second plate, and the top of the hydraulic tank is slidably connected to a hydraulic disk via a spring, the hydraulic tank stores combustion aid, a nozzle is provided on the hydraulic tank, and the nozzle faces the fuel; an electric push rod is provided on the inner wall of the first plate away from the second plate, and the telescopic end of the electric push rod is located directly above the hydraulic disk.

[0010] Preferably, an extrusion plate is provided at the bottom of the spiral blade, and one end of the extrusion plate is inclined toward and contacts the surface of the lower railing; the bottom of the extrusion plate is slidably connected to a dredging rod through a spring, and the bottom of the dredging rod is inserted into the lower filter hole.

[0011] Preferably, a combustion net is provided above the combustion plate, and a rotating shaft is rotatably connected to the center position of the combustion plate, and the rotating shaft is connected to a motor arranged at the bottom of the furnace body; spike rakes are evenly provided on the rotating shaft, and among the spike rakes adjacent to each other above and below, the bottom of the upper spike rake contacts the combustion net, and the bottom of the lower spike rake contacts the combustion plate.

[0012] Preferably, protrusions are evenly arranged on the combustion plate, and the bottom of the nail rake contacts the protrusions.

[0013] An intelligent temperature control system suitable for a biomass hot air stove, the intelligent temperature control system comprising a collection module, a data processing module and a control module; A collection module is installed in the furnace body and is used to collect the temperature of the combustion chamber, the flow rate of the feed pipe and the value of the steam heat exchanger; Data processing module: The data processing module is responsible for receiving the data uploaded by the acquisition module and performing data preprocessing and analysis; The control module controls the working state of the furnace body according to the analysis results of the data processing module and the set execution commands.

[0014] The beneficial effects of the present invention are as follows: 1. The intelligent and precise temperature-controlled biomass steam boiler and its intelligent temperature control system described in the present invention have a large proportion of water in the fuel agglomerates, which is difficult to ignite or affects combustion. The fuel agglomerates are intercepted by the upper filter holes on the top of the upper baffle, and the remaining fuel passes through the upper baffle and the upper filter holes and falls on the lower baffle, separating the agglomerates in the fuel, ensuring smooth ignition, avoiding excessive water in the fuel, improving the smoothness of ignition, and thus improving the combustion effect of the biomass hot air furnace.

[0015] 2. The invention discloses a biomass steam boiler with intelligent and precise temperature control and its intelligent temperature control system. As the spiral blades rotate, the telescopic plate is guided along the inclined surface of the spiral blades and is squeezed, causing the bottom of the telescopic plate to rise and contract, thereby achieving the purpose of the telescopic plate scraping the surface of the spiral blades and the fuel on the surface, until the telescopic plate scrapes the fuel from the top of the spiral blades, achieving the effect of throwing the fuel on the lower railing, shaking off and breaking part of the fuel, increasing the surface area of ​​the crushed fuel, and increasing the contact area with the air, completing more complete combustion, thereby improving combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the combustion chamber; Figure 4 It is a schematic diagram of the internal structure of the feeding box; Figure 5 This is the state diagram when the front part of the spiral blade passes through the telescopic plate; Figure 6 This is the state diagram when the rear part of the spiral blade passes through the telescopic plate; Figure 7 This is a diagram showing the state of the grille plate rotating at the bottom of the upper fence when the spiral blade passes through the telescopic plate; Figure 8 This is a state diagram of the end of the collection box contacting the spiral blade being flipped; Fig. 9 This is the state diagram after the collection box passes over one end of the spiral blade; Fig.10This is a state diagram of the cleaning sleeve driving the cleaning cloth to wipe the sensor up and down; In the figure: furnace body 1, combustion chamber 11, steam heat exchanger 12, feeding box 13, feeding pipe 14, auger 15, air pump unit 16, control box 17, exhaust pipe 18, rotating shaft 2, motor 21, spiral blade 22, spiral groove 23, extrusion hole 24, upper fence 25, lower fence 26, upper filter hole 27, lower filter hole 28, telescopic plate 29, combustion plate 3, furnace ash pipe 31, ignition assembly 32, vent hole 33, extrusion rod 34, extrusion Pressure wheel 35, lifting rod 36, collection box 37, closed groove 38, sensor 39, extrusion block 4, plate No. 1 41, plate No. 2 42, jet pipe 43, slide groove 44, slide rod 45, cleaning sleeve 46, grille plate 5, guide block 51, guide rod 52, hydraulic tank 53, hydraulic disc 54, nozzle 55, electric push rod 56, extrusion plate 57, dredging rod 58, combustion net 6, rotating shaft 61, motor 62, rake 63, protrusion 64. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: A biomass hot air furnace with intelligent and precise temperature control, as shown in the attached figure of the specification Figure 1-Figure 10 As shown, it includes a furnace body 1, which includes a combustion chamber 11, a steam heat exchanger 12, a feeding box 13, a feeding pipe 14, an auger 15, an air pump unit 16 and a control box 17; the combustion chamber 11 is installed at the bottom of the furnace body 1, and the steam heat exchanger 12 is installed above the combustion chamber 11 in the furnace body 1, and the steam heat exchanger 12 is used for heating and drying work of the hot air stove; one end of the feeding pipe 14 extends into the combustion chamber 11, and the other end is equipped with a feeding box 13, and the auger 15 is installed in the feeding pipe 14; the bottom and one side of the furnace body 1 are respectively equipped with an air pump unit 16 and a control box 17, the air pump unit 16 supplies air to the hot air stove, and the control box 17 is used to control the operation of the hot air stove; the bottom of the feeding box 13 is connected to the top of the furnace body through an air pipe; The combustion chamber 11, the steam heat exchanger 12, the feeding box 13, the feeding pipe 14, the auger 15, the air pump unit 16 and the control box 17 are components of a conventional hot air furnace. The air pump unit 16 is a combination unit of a conventional hair dryer, an exhaust fan and a smoke filter, such as a device composed of a hair dryer, an exhaust fan and a smoke filter placed side by side, which has the effects of conveying fresh air to the combustion chamber 11, extracting smoke and filtering smoke; the staff adds fuel to the feeding pipe 14 through the feeding box 13, the auger 15 conveys the fuel in the feeding pipe 14 to the combustion chamber 11, and the air pump unit 16 conveys air to the combustion chamber 11 to promote The fuel in the combustion chamber 11 burns, and the heat generated is passed through the heating steam heat exchanger 12 to fully replace the large amount of calorific value in the steam, which is used to heat water or air. The heated water or air is centrally transported to the drying chamber, and the air pump unit 16 draws air into the feeding box 13. The feeding box 13 draws the high-temperature exhaust gas after passing through the steam heat exchanger 12, and after cooling through the exhaust pipe 18, it is filtered and discharged through the flue gas filter in the air pump unit 16, completing the normal operation of the hot air furnace; the steam heat exchanger 12 can provide stable and uniform steam to ensure that the tea is evenly heated during the processing process, and fully release the aroma and taste of the tea; Also includes: The exhaust pipe 18 is arranged at the top of the feeding box 13, and one end of the exhaust pipe 18 is connected to the inside of the feeding box 13, and the other end is connected to the exhaust end of the air pump unit 16; the feeding box 13 is rotatably connected with a rotating shaft 2, the rotating shaft 2 is connected to a motor 21 arranged at the top of the feeding box 13, and one end of the rotating shaft 2 is connected to one end of the auger 15 through a clutch, so that the rotating shaft 2 drives the auger 15 to rotate intermittently; the rotating shaft 2 is fixedly connected with a spiral blade 22, and the spiral blade 22 is evenly provided with a spiral groove 23, and the spiral groove 23 is The cross section is trapezoidal, the connecting parts of adjacent spiral grooves 23 are sharp, and extrusion holes 24 are evenly arranged in the spiral grooves 23; the upper fence 25 and the lower fence 26 are respectively fixedly connected in the feeding box 13, and the upper fence 25 is located above the spiral blade 22, and the lower fence 26 is close to the bottom of the spiral blade 22, and the rotating shaft 2 passes through the upper fence 25 and the lower fence 26, and the upper fence 25 and the lower fence 26 are respectively provided with upper filter holes 27 and lower filter holes 28; a telescopic plate 29 is installed at the bottom of the upper fence 25, and the bottom of the telescopic plate 29 scrapes the surface of the spiral blade 22; The motor 21 is a conventional driving device, which drives the rotating shaft 2 to rotate, and the rotating shaft 2 drives the auger 15 to rotate through a conventional clutch; when there is no need to provide fuel, the clutch disconnects the connection between the rotating shaft 2 and the auger 15, so that the rotating shaft 2 rotates while the auger 15 is fixed; when fuel needs to be provided, the clutch reconnects the rotating shaft 2 with the auger 15 to complete the drive switching work; when the telescopic plate 29 is stationary, the bottom of the telescopic plate 29 is close to the lower railing 26; A combustion plate 3 is installed in the combustion chamber 11, and the combustion plate 3 is arc-shaped, an ash pipe 31 is opened at the axial position of the combustion plate 3, and one end of the feed pipe 14 faces the combustion plate 3; an ignition assembly 32 is installed on the combustion plate 3, and vent holes 33 are evenly opened on the top of the combustion plate 3, and the interior of the combustion plate 3 with a hollow structure is connected to the air pump unit 16 through a pipeline; the ignition assembly 32 is a conventional ignition device in a hot air furnace; Specific work flow: when the hot blast furnace is working, the staff opens the top of the feeding box 13 to add biomass fuel into the inside; if the biomass fuel forms large agglomerates due to moisture and other factors, the water content in the fuel agglomerates is large, which makes it difficult to ignite or affect combustion. The fuel agglomerates are intercepted by the upper filter holes 27 at the top of the upper fence 25, and the remaining fuel passes through the upper fence 25 and the upper filter holes 27 and falls on the lower fence 26, separating the agglomerates in the fuel, ensuring smooth ignition, avoiding excessive water content in the fuel, and improving the degree of ignition smoothness, thereby improving the combustion effect of the biomass hot blast furnace; After the fuel falls on the lower guardrail 26, the motor 21 drives the rotating shaft 2 to rotate. At this time, the rotating shaft 2 is disconnected from the auger 15 through the clutch, so that the rotating shaft 2 rotates, and the auger 15 is fixed and does not rotate; the rotating shaft 2 drives the spiral blade 22 to rotate. During the rotation of the spiral blade 22, the fuel on the lower guardrail 26 is continuously shoveled onto the spiral blade 22, and then the spiral blade 22 drives the fuel to rotate and contact the bottom of the telescopic plate 29; as the spiral blade 22 rotates, the telescopic plate 29 is guided along the inclined surface of the spiral blade 22 and is squeezed, so that the bottom of the telescopic plate 29 rises and contracts, so that the telescopic plate 29 scrapes the surface of the spiral blade 22 and the fuel on the surface, until the telescopic plate 29 scrapes the fuel from the top of the spiral blade 22, so as to achieve the effect of throwing the fuel on the lower guardrail 26, and part of the fuel is shaken and broken, the surface area of ​​the broken fuel is increased, and the contact area with the air is increased, so as to complete a more complete combustion, thereby improving the combustion efficiency; Since the connecting parts of adjacent spiral grooves 23 are sharp, when the fuel is pushed by the telescopic plate 29 along the surface of the spiral blade 22, the small fuel fragments are squeezed and shredded by the sharp parts of the spiral groove 23 and the telescopic plate 29, thereby improving the crushing effect of the fuel, improving the combustion effect of the fuel, improving the energy efficiency of the steam heat exchanger, and thus improving the combustion effect of the hot blast furnace; and part of the fuel can also pass through the spiral blade 22 through the extrusion hole 24 through the extrusion of the telescopic plate 29, thereby reducing the volume of the fuel, improving the crushing efficiency, accelerating the effect of the fuel entering the combustion chamber 11 through pretreatment, ensuring sufficient supply of the fuel during combustion, and thus improving the combustion efficiency; After the fuel is crushed, it passes through the lower filter hole 28 and the lower fence 26 into the feed pipe 14; when ignition or supply is required, the rotating shaft 2 and the auger 15 are reconnected through the clutch, and the rotating shaft 2 drives the auger 15 to rotate, and the auger 15 rotates to transport the fuel in the feed pipe 14 to the surface of the combustion plate 3 away from the center; then the fuel is ignited through the ignition component 32, and the air pump unit 16 is used to transport air around the fuel through the vent hole 33 to improve the combustion effect; when the fuel is poured into the combustion plate 3, since the combustion plate 3 is in an arc shape, the fuel is prevented from spilling from the combustion plate 3; after the fuel is burned, the staff opens the furnace body 1 and cleans the burnt slag on the combustion plate 3 through the ash pipe 31; Moreover, the combustion chamber 11 generates smoke during the combustion process, and the air pump unit 16 draws air into the feed box 13 through the exhaust pipe 18, and the feed box 13 draws smoke into the furnace body 1 through the air pipe to prevent smoke from spreading around the hot blast stove and polluting the environment; the smoke generated during the combustion of the fuel is of high temperature, and after the feed pipe 14 draws the smoke into the feed box 13, the high-temperature smoke rises from bottom to top in the feed box 13, and the fuel in the feed box 13 descends from top to bottom, so that the high-temperature smoke fully preheats and dries the fuel in the feed box 13, and the high-temperature exhaust gas is reused to achieve the purpose of energy saving, which is more conducive to subsequent combustion and improves the combustion effect; in addition, the fuel on the lower railing 26 The material volume is small and is about to be transported into the feed pipe 14. The fuel on the upper guardrail 25 has a large volume and can be temporarily stored for pretreatment, that is, the fuel fragments on the lower guardrail 26 are small in volume, and the preheating and drying efficiency is fast, and they contact the high-temperature smoke; during the fuel sprinkling process, they contact the high-temperature smoke again for preheating and drying; the fuel agglomerates on the upper guardrail 25 have a large volume, and the preheating and drying efficiency is slow. After the high-temperature smoke contacts the fuel on the lower guardrail 26 and the fuel during the sprinkling process, it contacts the fuel on the upper guardrail 25, so that the fuel in the feeding box 13 is separated and processed before combustion, thereby improving the fuel processing effect, thereby improving the fuel combustion effect, improving the energy efficiency of the steam heat exchanger, and then improving the combustion effect of the hot blast furnace.

[0020] Embodiment 2: On the basis of the first embodiment, one side of the telescopic plate 29 is evenly provided with an extrusion rod 34, which is installed horizontally, and a spring is provided between the extrusion rod 34 and the telescopic plate 29, and the extrusion rod 34 slides into the telescopic plate 29; the end of the extrusion rod 34 away from the telescopic plate 29 is rotatably connected to the extrusion wheel 35, and the outer ring of the extrusion wheel 35 contacts the inner wall of the spiral groove 23; the bottom of the telescopic plate 29 is slidably connected to the lifting rod 36 through the spring, the contact surface between the extrusion rod 34 and the lifting rod 36 is an inclined surface, and the bottom of the lifting rod 36 is hinged with a collection box 37 through a torsion spring; the bottom of the telescopic plate 29 is provided with a closed groove 38 , and the collection box 37 is inserted into the closed groove 38, and the bottom of the telescopic plate 29 is located in the closed groove 38 and a sensor 39 is provided; when the extrusion wheel 35 contacts the spiral blade 22, the lifting rod 36 is pressed to drive the collection box 37 to descend, and the collection box 37 is located between the bottom of the spiral blade 22 and the lower railing 26; when the extrusion wheel 35 rises along the spiral blade 22, the collection box 37 is flipped by the bottom of the spiral blade 22, and then reset by the torsion spring, and the reset collection box 37 is located in the spiral groove 23; the sensor 39 is a conventional electrical appliance for detecting humidity, and the selected sensor 39 is not affected by the temperature in the feeding box 13; The outer ring of the extrusion wheel 35 is evenly provided with extrusion blocks 4, and the cross section of the extrusion blocks 4 is trapezoidal, and the extrusion blocks 4 are inserted into the extrusion holes 24; The telescopic plate 29 includes a first plate 41 and a second plate 42, and the first plate 41 with a hollow structure is installed at the bottom of the upper railing 25, and the second plate 42 is slidably connected to the bottom of the first plate 41 through a spring, and the extrusion rod 34, the extrusion wheel 35, the lifting rod 36, the collection box 37 and the closed groove 38 are located on the second plate 42; the second plate 42 is provided with an air injection pipe 43, and one end of the air injection pipe 43 faces the sensor 39, and the other end is connected to the inside of the first plate 41; the bottom of the second plate 42 is provided with a slide groove 44, and the slide groove 44 is provided with a plurality of air injection pipes 43, and the air injection pipes 43 are connected to the inside of the first plate 41. A sliding rod 45 is slidably connected, one end of the sliding rod 45 is located in the sliding groove 44, and the other end is connected to the lifting rod 36; a cleaning sleeve 46 is provided at one end of the sliding rod 45 away from the lifting rod 36, and a cleaning cloth is provided in the cleaning sleeve 46, and the sensor 39 is located at the center of the cleaning sleeve 46; when the cleaning sleeve 46 descends, the cleaning sleeve 46 covers the sensor 39; the cleaning cloth is a conventional tool for cleaning the sensor 39, and the force of the jet pipe 43 on the sensor 39 will not affect the fuel sample collected by the collection box 37; Specific working process: when the telescopic plate 29 is stationary, the bottom of the telescopic plate 29 is close to the lower railing 26, the squeezing rod 34 is affected by the spring to drive the squeezing wheel 35 away from the telescopic plate 29, and the lifting rod 36 is affected by the spring to drive the collection box 37 to insert into the closed groove 38, and the sensor 39 is located in the internal environment of the collection box 37; when the spiral blade 22 rotates and approaches the telescopic plate 29, the spiral groove 23 contacts and squeezes the squeezing wheel 35, and the squeezing wheel 35 drives the squeezing rod 34 to insert into the telescopic plate 29; the inclined surface at one end of the squeezing rod 34 contacts and squeezes the inclined surface at the top of the lifting rod 36, and the lifting rod 36 is squeezed and drives the collection box 37 to descend and leave the closed groove 38, so that the collection box 37 descends to between the bottom of the spiral blade 22 and the lower railing 26, so that the collection box 37 can collect fuel after the squeezing wheel 35 is squeezed; As the spiral blade 22 moves, the bottom of the spiral blade 22 contacts and moves the collection box 37. After being moved, the collection box 37 swings and flips with the hinge position as the rotation point, so that the fuel sample in the collection box 37 is poured out to prepare for collecting a new sample. Until the collection box 37 passes over the bottom of the spiral blade 22, the collection box 37 is affected by the torsion spring to swing back to reset, and the reset collection box 37 is close to the inner wall of the spiral groove 23; then the spiral blade 22 continues to rotate, and the telescopic plate 29 rises and retracts. During the process of the collection box 37 rising along the spiral groove 23, it scratches the inner wall of the spiral groove 23 to prevent the wet fuel from adhering to form nodules, which hinders the spiral blade 22 from shoveling the fuel for throwing, thereby improving the movement effect of the fuel, thereby improving the fuel processing effect; while cleaning the spiral groove 23 and the spiral blade 22, the collection box 37 completes the work of collecting a new fuel sample; When the telescopic plate 29 passes over the spiral blade 22, the extrusion wheel 35 is no longer squeezed, driving the extrusion rod 34 to extend out of the telescopic plate 29, and the lifting rod 36 drives the collection box 37 containing the fuel to rise and insert into the closed groove 38, so that the fuel in the collection box 37 is in close contact with the sensor 39. The sensor 39 performs humidity detection on the fuel in the collection box 37 to complete the moisture determination before the fuel is burned, so that the staff can grasp the moisture content of the fuel in real time, ensure the complete combustion of the fuel, and improve the combustion effect of the hot blast furnace; because the collection box 37 is inserted into the closed groove 38 for detection, the collection box 37 remains closed during detection, reducing the influence of the environment in the feeding box 13 on the detection result, thereby improving the detection accuracy; the hot blast furnace determines whether the fuel in the feeding box 13 can be transported according to the fuel moisture content detection data, thereby reducing the influence of the water content in the fuel on the combustion process; After the spiral groove 23 squeezes the extrusion wheel 35, the extrusion wheel 35 drives the extrusion block 4 to roll and rise in the spiral groove 23; when the extrusion wheel 35 rolls close to the extrusion hole 24, the extrusion wheel 35 drives the extrusion block 4 to insert into the extrusion hole 24, and while the extrusion hole 24 is being cleared, the process of the extrusion block 4 rolling and inserting into the extrusion hole 24 forms a process of the gear rolling on the rack, thereby achieving a meshing effect, and the extrusion wheel 35 is prompted to roll in the spiral groove 23 by inserting into the extrusion hole 24; the fuel fragments at the angle between the spiral blade 22 and the telescopic plate 29 are crushed and broken by the extrusion block 4 in the rotating state, thereby improving the crushing effect of the fuel fragments, and at the same time, the extrusion hole 24 causes the extrusion wheel 35 to roll in the spiral groove 23, thereby avoiding the extrusion wheel 35 being stuck by the fuel during the crushing process, thereby improving the crushing efficiency; When the telescopic plate 29 rises and contracts, the second plate 42 contracts into the first plate 41. After the air in the first plate 41 is squeezed, it is continuously sprayed toward the sensor 39 through the jet pipe 43 to blow away the fuel adhering to the sensor 39, thereby keeping the sensor 39 clean and maintaining the detection accuracy of the sensor 39. When the collection box 37 takes samples, the lifting rod 36 descends in the slide groove 44 through the slide rod 45, driving the cleaning sleeve 46 to descend. The cleaning sleeve 46 drives the cleaning cloth to descend and pass through the sensor 39 to clean the sensor 39, and cooperates with the continuous jetting action of the jet pipe 43 to blow away the impurities generated by the cleaning, thereby improving the cleaning effect and maintaining the detection accuracy of the sensor 39, thereby accurately detecting the water content of the fuel and improving the combustion effect of the hot blast furnace.

[0021] Embodiment three: On the basis of the second embodiment, the bottom of the upper fence 25 is rotatably connected to the grid plate 5, and a torsion spring is provided between the grid plate 5 and the upper fence 25; a guide block 51 is provided on one side of the second plate 42, and a guide rod 52 is provided at the bottom of the grid plate 5, and the bottom of the guide rod 52 contacts the wavy surface of the guide block 51; the upper filter hole 27 and the hole in the grid plate 5 form an inverted trapezoidal hole as a whole; The second plate 42 is provided with a hydraulic tank 53, and the top of the hydraulic tank 53 is slidably connected to a hydraulic disc 54 through a spring. The hydraulic tank 53 stores a combustion aid, and a nozzle 55 is provided on the hydraulic tank 53, and the nozzle 55 faces the fuel; the inner wall of the first plate 41 away from the second plate 42 is provided with an electric push rod 56, and the telescopic end of the electric push rod 56 is located directly above the hydraulic disc 54; the combustion aid is conventional grease used for hot blast furnace combustion; the hydraulic tank 53 contains a one-way air suction nozzle, after the hydraulic disc 54 descends to squeeze out the combustion aid in the hydraulic tank 53, the hydraulic disc 54 rises and resets under the influence of the spring, and the hydraulic tank 53 inhales air to the outside through the nozzle to balance the air pressure difference after the combustion aid is squeezed out of the hydraulic tank 53; the electric push rod 56 is a conventional electric drive telescopic device; The bottom of the spiral blade 22 is provided with an extrusion plate 57, and one end of the extrusion plate 57 is inclined toward and contacts the surface of the lower fence 26; the bottom of the extrusion plate 57 is slidably connected to a dredging rod 58 through a spring, and the bottom of the dredging rod 58 is inserted into the lower filter hole 28; Specific working process: when the second plate 42 rises and retracts into the first plate 41, the second plate 42 drives the guide block 51 to rise, and the wavy surface on one side of the guide block 51 contacts the guide rod 52; When the guide rod 52 contacts the wavy convex part of the guide block 51, an extrusion effect is generated on the guide rod 52, pushing the guide rod 52 away from the second plate 42, and the guide rod 52 drives the grid plate 5 to rotate, so that the holes on the grid plate 5 are staggered with the upper filter holes 27; a shearing effect is generated in the process of the holes on the grid plate 5 and the upper filter holes 27 being staggered, and the fuel agglomerates stuck in the upper filter holes 27 are gradually sheared and crushed, so that the fuel agglomerates are sheared and crushed to reduce the volume while being dried by high-temperature smoke, thereby improving the drying efficiency and thus improving the combustion pretreatment efficiency; When the guide rod 52 contacts the wavy concave part of the guide block 51, the guide rod 52 is not squeezed, and the torsion spring in the grid plate 5 drives the grid plate 5 and the guide rod 52 to reset, and the guide rod 52 moves close to the second plate 42. When the holes on the grid plate 5 overlap with the upper filter holes 27 again, the guide rod 52 collides with the guide block 51 to generate vibration, causing the remaining fuel agglomerates on the upper fence 25 to fall and get stuck in the upper filter holes 27 again, ready to be sheared and crushed again, until the large-volume fuel agglomerates are sheared and crushed to pass through the upper filter holes 27; Before the hot blast furnace is ignited, since the amount of high-temperature smoke generated is small or has not yet been burned, if the water content of the fuel at this time is relatively large, the control box 17 controls the electric push rod 56 to extend to a set length through the furnace body 1, and the No. 2 plate 42 rises to drive the hydraulic disc 54 to rise. The hydraulic disc 54 is blocked and stops rising after contacting the electric push rod 56, and the No. 2 plate 42 drives the hydraulic tank 53 to continue to rise, and squeezes the combustion aid out of the hydraulic tank 53 through the nozzle 55. The combustion aid is sprayed into the fuel through the nozzle 55, and the combustion aid and the fuel are evenly mixed through the throwing and crushing of the spiral blade 22, thereby improving the combustion uniformity of the hot blast furnace when it is just burning, thereby improving the combustion effect; The rotation of the spiral blade 22 drives the extrusion plate 57 to rotate, and the extrusion plate 57 drives the dredging rod 58 to rotate; when the dredging rod 58 is close to the lower filter hole 28, it is extended by the spring and inserted into the lower filter hole 28. While dredging the lower filter hole 28, the extrusion plate 57 cleans the surface of the lower fence 26 to prevent the fuel mixed with the combustion aid from being sticky and adhering to the surface of the lower fence 26, thereby improving the cleanliness of the lower fence 26 and ensuring the filtering capacity and throughput of the fuel; when the extrusion plate 57 drives the dredging rod 58 to pass through the lower filter hole 28, the arc-shaped surface at the bottom of the dredging rod 58 inserted into the lower filter hole 28 slides with the lower filter hole 28, and squeezes the dredging rod 58 to rise until the dredging rod 58 passes over the lower filter hole 28, completing a dredging work of the dredging rod 58 on the lower filter hole 28.

[0022] Embodiment 4: On the basis of the third embodiment, a combustion net 6 is provided above the combustion plate 3, and a rotating shaft 61 is rotatably connected to the center of the combustion plate 3, and the rotating shaft 61 is connected to a motor 62 provided at the bottom of the furnace body 1; nail rakes 63 are evenly provided on the rotating shaft 61, and among the nail rakes 63 adjacent to each other, the bottom of the upper nail rake 63 contacts the combustion net 6, and the bottom of the lower nail rake 63 contacts the combustion plate 3; the motor 62 is a conventional device for driving components to rotate, and because the motor 62 is located at a position far below the combustion plate 3, the motor 62 is prevented from being affected by the combustion; The combustion plate 3 is evenly provided with protrusions 64, and the bottom of the nail rake 63 contacts the protrusions 64; Specific working process: after the fuel is crushed, it will form fuel fragments and powder. The mixed combustion of these two states of fuel may cause uneven temperature distribution in the hot blast furnace; therefore, when the fuel is transported and burned, the fuel first falls on the combustion net 6, and the motor 62 drives the nail rake 63 to rotate through the rotating shaft 61, and the nail rake 63 moves the fuel on the combustion net 6. The powder generated by the fuel in the crushing process passes through the combustion net 6 and falls on the combustion plate 3 for combustion, and the fuel fragments are retained on the combustion net 6 for combustion, so as to achieve the purpose of layered combustion and improve the combustion effect; and the fuel fragments are burned on the combustion plate 3 through the combustion net 6, and the bottom-up air supply of the vent hole 33 is cooperated to improve the combustion effect; After the fuel fragments are burned into ashes, they pass through the combustion net 6 and fall on the surface of the combustion plate 3. When the vent holes 33 blow air upward to supply air, they avoid the ashes on the combustion plate 3 to prevent the airflow from blowing up and spreading the ashes on the combustion plate 3, thereby affecting the subsequent combustion effect. In addition, the nail rake 63 stirs the fuel fragments on the combustion net 6 and the ashes on the combustion plate 3 at the same time. On the one hand, when the fuel is stirred, the originally tightly stacked fuel is dispersed, increasing the contact area between the fuel and oxygen, which helps oxygen to penetrate into the fuel more fully, thereby accelerating combustion. On the other hand, when the ashes are stirred, the arc-shaped combustion plate 3 is used to guide the ashes, so that they gather toward the furnace ash pipe 31 in the center of the combustion plate 3 and fall and are discharged, so that the ashes are cleaned in time to prevent the ashes from being blown up and spreading. When the nail rake 63 is rotating, a vibration effect is generated when the nail rake 63 passes through the protrusion 64, so that the nail rake 63 and the combustion plate 3 vibrate. The vibration of the combustion plate 3 itself, the curved top and the stirring of the nail rake 63 accelerate the discharge of ash, thereby achieving the purpose of timely cleaning up the ash. In addition, since the combustion plate 3 and the combustion net 6 are both made of metal and rigidly connected to each other, the vibration of the combustion plate 3 drives the combustion net 6 to form a tiny vibration, and the vibration of the combustion net 6 burns the fragments, so that the combustion fragments are broken by vibration while burning, which accelerates the combustion and facilitates the ashes after burning to pass through the combustion net 6, thereby improving the convenience of using the hot blast furnace.

[0023] Embodiment five: An intelligent temperature control system suitable for a biomass hot air stove, the intelligent temperature control system comprising a collection module, a data processing module and a control module; A collection module is installed in the furnace body 1 and is used to collect the temperature of the combustion chamber 11, the flow rate of the feed pipe 14 and the value of the steam heat exchanger 12; the flow rate of the feed pipe 14 is counted by a conventional flow meter used for detecting solids; Data processing module: The data processing module is responsible for receiving the data uploaded by the acquisition module and performing data preprocessing and analysis; A control module, which controls the working state of the furnace body 1 according to the analysis results of the data processing module and the set execution command; The low temperature of the combustion chamber 11 indicates that the combustion fire is small. The flow of the feed pipe 14 is controlled to be reduced, and the operating rate of the feed box 13 is reduced. The current value of the steam heat exchanger 12 is collected and integrated and analyzed through the data processing module to provide workers with a reference for the working status and a basis for workers' control.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A biomass steam boiler with intelligent and precise temperature control, comprising a furnace body (1), wherein the furnace body (1) comprises a combustion chamber (11), a steam heat exchanger (12), a feeding box (13), a feeding pipe (14), an auger (15), an air pump unit (16) and a control box (17); characterized in that: Also includes: An exhaust pipe (18) is arranged at the top of the feeding box (13), and one end of the exhaust pipe (18) is connected to the inside of the feeding box (13), and the other end is connected to the exhaust end of the air pump unit (16); a rotating shaft (2) is rotatably connected inside the feeding box (13), the rotating shaft (2) is connected to a motor (21) arranged at the top of the feeding box (13), and one end of the rotating shaft (2) is connected to one end of the auger (15) through a clutch; a spiral blade (22) is fixedly connected to the rotating shaft (2), and spiral grooves (23) are evenly arranged on the spiral blade (22), and the cross section of the spiral grooves (23) is arranged in a trapezoidal shape, and adjacent spiral grooves are arranged in a trapezoidal shape. The interconnected parts of the grooves (23) are sharp, and extrusion holes (24) are evenly arranged in the spiral grooves (23); an upper fence (25) and a lower fence (26) are respectively fixedly connected in the feeding box (13), and the upper fence (25) is located above the spiral blade (22), and the lower fence (26) is close to the bottom of the spiral blade (22); the rotating shaft (2) passes through the upper fence (25) and the lower fence (26), and the upper fence (25) and the lower fence (26) are respectively provided with upper filter holes (27) and lower filter holes (28); a telescopic plate (29) is installed at the bottom of the upper fence (25), and the bottom of the telescopic plate (29) scrapes the surface of the spiral blade (22); A combustion plate (3), the combustion plate (3) being installed in a combustion chamber (11), and the combustion plate (3) being arc-shaped, an ash pipe (31) being provided at the axial position of the combustion plate (3), and one end of the feed pipe (14) being directed toward the combustion plate (3); an ignition assembly (32) being installed on the combustion plate (3), and ventilation holes (33) being evenly provided at the top of the combustion plate (3), and the interior of the combustion plate (3) being arranged in a hollow structure is connected to the air pump unit (16) through a pipeline.

2. The biomass steam boiler with intelligent and precise temperature control according to claim 1 is characterized in that: One side of the telescopic plate (29) is evenly provided with an extrusion rod (34), which is installed horizontally, and a spring is provided between the extrusion rod (34) and the telescopic plate (29), so that the extrusion rod (34) slides into the telescopic plate (29); the end of the extrusion rod (34) away from the telescopic plate (29) is rotatably connected to an extrusion wheel (35), and the outer ring of the extrusion wheel (35) contacts the inner wall of the spiral groove (23); the bottom of the telescopic plate (29) is slidably connected to a lifting rod (36) through a spring, the contact surface between the extrusion rod (34) and the lifting rod (36) is an inclined surface, and the bottom of the lifting rod (36) is hinged with a collection box (37) through a torsion spring; A sealed groove (38) is provided at the bottom of the retractable plate (29), and a collection box (37) is inserted into the sealed groove (38). A sensor (39) is provided at the bottom of the retractable plate (29) in the sealed groove (38); when the extrusion wheel (35) contacts the spiral blade (22), the lifting rod (36) is pressed to drive the collection box (37) to descend, and the collection box (37) is located between the bottom of the spiral blade (22) and the lower railing (26); when the extrusion wheel (35) rises along the spiral blade (22), the collection box (37) is flipped by the bottom of the spiral blade (22), and then reset by the torsion spring, and the reset collection box (37) is located in the spiral groove (23).

3. The biomass steam boiler with intelligent and precise temperature control according to claim 2 is characterized in that: The outer ring of the extrusion wheel (35) is evenly provided with extrusion blocks (4), and the cross section of the extrusion blocks (4) is trapezoidal. The extrusion blocks (4) are inserted into the extrusion holes (24).

4. The biomass steam boiler with intelligent and precise temperature control according to claim 3 is characterized in that: The telescopic plate (29) comprises a first plate (41) and a second plate (42), and the first plate (41) with a hollow structure is installed at the bottom of the upper railing (25), and the second plate (42) is slidably connected to the bottom of the first plate (41) through a spring, and the extrusion rod (34), the extrusion wheel (35), the lifting rod (36), the collection box (37) and the closed groove (38) are located on the second plate (42); the second plate (42) is provided with an air jet pipe (43), and one end of the air jet pipe (43) faces the sensor (39), and the other end is connected to the first plate (41). The second plate (41) is provided with a slide groove (44) at the bottom, and a slide rod (45) is slidably connected in the slide groove (44), one end of the slide rod (45) is located in the slide groove (44), and the other end is connected to the lifting rod (36); a cleaning sleeve (46) is provided at one end of the slide rod (45) away from the lifting rod (36), and a cleaning cloth is provided in the cleaning sleeve (46), and the sensor (39) is located in the center of the cleaning sleeve (46); when the cleaning sleeve (46) descends, the cleaning sleeve (46) covers the sensor (39).

5. The biomass steam boiler with intelligent and precise temperature control according to claim 4 is characterized in that: The bottom of the upper baffle plate (25) is rotatably connected to a grid plate (5), and a torsion spring is provided between the grid plate (5) and the upper baffle plate (25); a guide block (51) is provided on one side of the second plate (42), a guide rod (52) is provided at the bottom of the grid plate (5), and the bottom of the guide rod (52) contacts the wavy surface of the guide block (51); the upper filter hole (27) and the hole in the grid plate (5) form an overall inverted trapezoidal hole.

6. The biomass steam boiler with intelligent and precise temperature control according to claim 5 is characterized in that: The second plate (42) is provided with a hydraulic tank (53), and the top of the hydraulic tank (53) is slidably connected to a hydraulic disk (54) via a spring, and the hydraulic tank (53) stores a combustion aid, and a nozzle (55) is provided on the hydraulic tank (53), and the nozzle (55) faces the fuel; the inner wall of the first plate (41) away from the second plate (42) is provided with an electric push rod (56), and the telescopic end of the electric push rod (56) is located directly above the hydraulic disk (54).

7. The biomass steam boiler with intelligent and precise temperature control according to claim 6 is characterized by: The bottom of the spiral blade (22) is provided with an extrusion plate (57), and one end of the extrusion plate (57) is inclined toward and contacts the surface of the lower fence (26); the bottom of the extrusion plate (57) is slidably connected to a dredging rod (58) through a spring, and the bottom of the dredging rod (58) is inserted into the lower filter hole (28).

8. The biomass steam boiler with intelligent and precise temperature control according to claim 1 is characterized in that: A combustion net (6) is arranged above the combustion plate (3), and a rotating shaft (61) is rotatably connected to the center of the combustion plate (3), and the rotating shaft (61) is connected to a motor (62) arranged at the bottom of the furnace body (1); spike rakes (63) are evenly arranged on the rotating shaft (61), and among the spike rakes (63) adjacent to each other, the bottom of the upper spike rake (63) contacts the combustion net (6), and the bottom of the lower spike rake (63) contacts the combustion plate (3).

9. The biomass steam boiler with intelligent and precise temperature control according to claim 8, characterized in that: The combustion plate (3) is evenly provided with protrusions (64), and the bottom of the nail rake (63) contacts the protrusions (64).

10. An intelligent temperature control system applicable to a biomass steam boiler according to any one of claims 1 to 9, characterized in that: The intelligent temperature control system includes an acquisition module, a data processing module and a control module; A collection module, the collection module is installed in the furnace body (1) and is used to collect the temperature of the combustion chamber (11), the flow rate of the feed pipe (14) and the value of the steam heat exchanger (12); Data processing module: The data processing module is responsible for receiving the data uploaded by the acquisition module and performing data preprocessing and analysis; A control module controls the working state of the furnace body (1) according to the analysis results of the data processing module and the set execution command.

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