Biomass water pipe steam boiler

Abstract

The invention is suitable for the technical field of biomass boilers, and provides a biomass water pipe steam boiler which comprises a boiler body. A combustion device rotationally matched with the inner wall of the hearth cavity is fixedly installed on the side face of the boiler body. The combustion device comprises a feeding part; the feeding part comprises a transverse conveying barrel; a curved-surface grate bar is fixed at the end part of the transverse conveying barrel; a transverse auger is rotationally arranged in the transverse conveying barrel in a penetrating manner; the end part of the transverse auger is fixedly connected with a material turning part; a plurality of curved-surface material rotating cylinders are uniformly fixed on the side surface of the fixed plate, and a curved-surface scraping plate rotationally matched with the inner circumferential side surface of the curved-surface grate bar is fixed between two adjacent curved-surface material rotating cylinders on the side surface of the fixed plate; according to the device, in the biomass fuel conveying process of the transverse packing auger, through linkage cooperation of the transverse packing auger, the pushing part and all components, one-way pushing and flattening of the biomass fuel in the curved-surface grate bar by the pushing part are achieved, biomass particles are turned over through cooperation of the turning-over part, and the using effect of the boiler is improved.

Description

Technical Field

[0001] The invention relates to the technical field of biomass boilers, and more specifically, to a biomass water tube steam boiler. Background Art

[0002] Biomass fuel: refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.), which is mainly different from fossil fuels. The application of biomass fuel is actually mainly biomass pellet fuel, which is a new type of clean fuel that uses agricultural and forestry waste as raw materials, and is made into various shapes (such as blocks, granules, etc.) through processes such as crushing, mixing, extrusion, and drying, and can be directly burned.

[0003] A biomass boiler is a type of boiler. A boiler that uses biomass energy as fuel is called a biomass boiler. It is divided into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, biomass thermal oil furnaces, vertical biomass boilers, horizontal biomass boilers, etc. However, when biomass boilers continue to add biomass fuel to the inside, the newly added biomass fuel will cover the fuel that is burning inside, causing the flame of the burning fuel to cover or suppress it, slowing down the burning speed of the burning fuel and the speed of heat generation. It may even extinguish the flame of the biomass fuel that is burning inside, causing the boiler to flame out. At the same time, this method of feeding is likely to cause the accumulation of biomass fuel, and the biomass fuel at the bottom and middle is not fully burned, affecting the use of the boiler. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a biomass water tube steam boiler. In the process of conveying biomass fuel, the transverse auger can realize the one-way pushing and leveling of the biomass fuel inside the curved grate by the pusher through the linkage cooperation between the transverse auger, the pusher and various components, and the turning over of the biomass particles by the turning over part, effectively avoiding the new fuel from directly covering the burning fuel over a large area, thereby improving the use effect of the boiler.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A biomass water tube steam boiler comprises a boiler body; a heat conducting plate is fixed between the inner walls of the boiler body; the heat conducting plate divides the boiler body into a heating chamber and a furnace chamber; a combustion device which is rotatably matched with the inner wall of the furnace chamber is fixedly mounted on the side of the boiler body; a mounting opening is provided on the inner wall of the furnace chamber; the combustion device comprises a feeding part; the feeding part comprises a transverse feeding cylinder; a curved grate is fixed at the end of the transverse feeding cylinder; a transverse auger is rotatably arranged inside the transverse feeding cylinder; the end of the transverse auger is fixedly connected with a A turning part is arranged at the center; the turning part includes a fixed plate; an annular plate is fixed on the side of the fixed plate; an annular groove which is rotatably matched with the annular plate is opened on the inner wall of the furnace chamber; a plurality of curved rotating barrels which are rotatably matched with the outer peripheral side of the curved grate are evenly fixed on the side of the fixed plate, and a curved scraper which is rotatably matched with the inner peripheral side of the curved grate is fixed on its side between two adjacent curved rotating barrels; a plurality of ash discharge holes are evenly opened on the inner wall of the curved rotating barrel; a plurality of ash discharge grooves are evenly opened on the inner wall of the curved scraper; a discharge groove is opened on the inner wall of the curved grate.

[0007] The present invention is further configured as follows: a first motor is fixedly installed at the end of the horizontal feed cylinder; the output end of the first motor is fixedly connected to one end of a horizontal auger through a reducer; a vertical feed cylinder is connected to the side surface of the horizontal feed cylinder; a conical material box is connected to the top of the vertical feed cylinder; a mounting plate is fixed to the top of the conical material box; a second motor is fixedly installed on the top of the mounting plate; a vertical auger is rotatably arranged through the bottom surface of the mounting plate; the output end of the second motor is fixedly connected to the end of the vertical auger.

[0008] The present invention is further configured as follows: a connecting shaft is fixed to the side of the fixed plate; the end of the connecting shaft is connected to the end of the transverse auger through an insulation layer; the insulation layer is an axial insulation layer, the material of which is aerogel felt, and is fixed with bolts with hinged holes; a connecting ring is fixed between the ends of each of the curved rotating barrels; a connecting flange placed on the outside of the mounting port is fixed to the peripheral side of the transverse auger; and the connecting flange is fixedly installed on the side of the boiler body by fastening bolts.

[0009] The present invention is further configured as follows: a first installation box is connected to the outer peripheral side surface of the transverse feed cylinder; a blower is installed on the top of the first installation box; the output end of the blower extends into the interior of the first installation box; a second installation box is connected to the top of the first installation box; an electric push rod is fixed through the top of the second installation box; a slide plate that slides with the inner wall of the second installation box is fixed to the telescopic end of the electric push rod; an inclined guide groove is provided on the bottom surface of the slide plate; a controller is installed on the top of the second installation box; a first baffle plate and a second baffle plate are fixed on the bottom surface of the inclined guide groove in sequence; a first pressure sensor and a second pressure sensor are installed on the sides of the first baffle plate and the second baffle plate in sequence; the input end of the controller is electrically connected to the first pressure sensor and the second pressure sensor respectively, and its output end is electrically connected to the first motor, the second motor, the blower and the electric push rod respectively.

[0010] The present invention is further configured as follows: sliding rods are symmetrically fixed between the inner walls of the first installation box; a sliding portion that slidably cooperates with the sliding rod is slidably arranged between the inner walls of the first installation box; the sliding portion includes a fixed seat; sliding holes that slidably cooperate with the sliding rod are symmetrically opened on the side of the fixed seat; reset springs that are sleeved on the corresponding sliding rods are symmetrically fixedly connected between the fixed seat and the inner wall of the first installation box; vertical plates are symmetrically fixed on the top of the fixed seat; guide grooves are opened on the side of the vertical plate; and a lifting portion is slidably arranged between the two guide grooves.

[0011] The present invention is further configured as follows: the lifting part includes a lifting plate; guide plates that slide in cooperation with the guide groove are fixed on two opposite sides of the lifting plate; a tension spring is fixedly connected between the guide plate and the top of the guide groove; a guide ball that matches the oblique guide groove is fixed on the top of the lifting plate; a guide hole is opened on the top of the fixing seat; a lifting rod that slides in cooperation with the guide hole is fixed on the bottom surface of the lifting plate; and a first ball head is fixed on the bottom end of the lifting rod.

[0012] The present invention is further configured as follows: a first guide groove is symmetrically inclined downwardly on the inner wall of the first installation box; a second guide groove connected to the bottom end of the corresponding first guide groove is formed on the inner wall of the first installation box; a limit rod is symmetrically fixed on the top of the fixed seat; a pushing part that slides and cooperates with the limit rod is slidably arranged between the two vertical plates; the pushing part includes a pushing plate; the bottom surface of the pushing plate is fixed with a plurality of paddle plates; a first avoidance groove that slides and cooperates with the connecting shaft is formed on the side of the pushing plate; an extension plate is symmetrically fixed on the side of the pushing plate; a second avoidance groove that slides and cooperates with the extension plate is symmetrically formed on the inner wall of the first installation box; a lifting groove that slides and cooperates with the vertical plate is formed on the surface of the extension plate near its end; a limit hole that slides and cooperates with the limit rod is formed on the surface of the extension plate; an ear rod is fixed on the side of the extension plate; a second ball head that slides and cooperates with the first guide groove and the second guide groove is fixed on the end of the ear rod.

[0013] The present invention is further configured as follows: an ash collecting box is slidably provided through the inner wall of the furnace cavity; an inspection box is fixed on the top of the heating cavity; a threaded ring is fixed on the top of the inspection box; a sealing cover is screwed on the threaded ring; a smoke exhaust pipe is connected to the side surface of the inspection box; a steam delivery pipe is provided through the top of the heating cavity; a water inlet pipe and a water outlet pipe are sequentially provided through the inner wall of the heating cavity; a steam pressure gauge and a temperature sensor electrically connected to the input and output ends of the controller are sequentially provided through the inner wall of the heating cavity near the inner top; an electromagnetic valve electrically connected to the output end of the controller is provided on the water inlet pipe, the water outlet pipe and the steam delivery pipe; a plurality of heat-conducting pipes are uniformly provided inside the heating cavity; the two ends of the heat-conducting pipes are respectively connected to the inspection box and the furnace cavity; a plurality of heat-conducting protrusions are provided on the heat-conducting pipe and the heat-conducting plate.

[0014] The advantages of the present invention are:

[0015] 1. The present invention controls the rotation of the transverse auger to transport the biomass fuel to the curved grate for combustion. During the rotation of the transverse auger, the turning part is driven to rotate around the curved grate. When the curved rotating barrel rotates to just below the discharge chute, the biomass fuel at the bottom of the curved grate falls into the curved rotating barrel. As the curved rotating barrel rotates, it rises to above the curved grate. Under the action of gravity, the biomass fuel in the curved rotating barrel falls back into the curved grate, thereby turning the biomass fuel, preventing the biomass particles from being insufficiently burned inside the boiler, and improving the combustion effect of the boiler.

[0016] 2. In the process of transporting biomass fuel, the transverse auger of the present invention realizes the one-way pushing and leveling of the biomass fuel inside the curved grate by the pusher part through the linkage cooperation between the transverse auger, the pusher part and various components, and cooperates with the flipping part to flip the biomass particles, effectively avoiding the new fuel from directly covering the burning fuel in a large area, thereby improving the use effect of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a biomass water tube steam boiler of the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from another angle.

[0019] Figure 3 It is a schematic structural diagram of the boiler body of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the combustion device of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the feeding part of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the material turning part of the present invention.

[0023] Figure 7 For the present invention Figure 6 Partial cutaway view from right side view.

[0024] Figure 8 It is a schematic structural diagram of the sliding part of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the lifting part of the present invention.

[0026] Fig.10 It is a structural schematic diagram of a skateboard of the present invention.

[0027] Fig.11 It is a structural schematic diagram of the pusher part of the present invention.

[0028] Fig.12 It is a structural schematic diagram of the feeding part and the pushing part assembly of the present invention.

[0029] Fig.13 It is a structural schematic diagram of the initial state of the lifting part and the pushing part of the present invention.

[0030] Fig.14 It is a schematic structural diagram of the pusher part of the present invention in a sliding pusher state.

[0031] Fig.15 It is a schematic structural diagram of the pushing part of the present invention before the pushing of materials is completed.

[0032] Fig.16 It is a schematic diagram of the structure of the pushing part of the present invention after the pushing of materials is completed.

[0033] Fig.17 It is a structural schematic diagram of the lifting part and the pushing part of the present invention during the reverse sliding and resetting process.

[0034] In the figure: 1. boiler body; 2. heat conducting plate; 3. heating chamber; 4. furnace chamber; 5. combustion device; 6. installation port; 7. feeding part; 8. horizontal feeding cylinder; 9. curved grate; 10. horizontal auger; 11. turning part; 12. fixing plate; 13. annular plate; 14. heat conducting pipe; 15. curved rotating cylinder; 16. curved scraper; 17. ash discharge hole; 18. ash discharge trough; 19. discharge trough; 20. first motor; 21. vertical feeding cylinder; 22. conical material box; 23. installation plate; 24. second motor; 25. vertical auger; 26. connecting shaft; 27. connecting ring; 28. connecting flange; 29. ​​first installation box; 30. blower; 31. second installation box; 32. electric push rod; 33. slide plate; 34. inclined guide groove; 35. first baffle; 36. The second baffle; 37, sliding rod; 38, sliding part; 39, fixing seat; 40, sliding hole; 41, reset spring; 42, vertical plate; 43, guide groove; 44, lifting part; 45, lifting plate; 46, guide plate; 47, tension spring; 48, guide ball; 49, guide hole; 50, lifting rod; 51, first ball head; 52, limiting rod; 53, pushing part; 54, pushing plate; 55, paddle plate; 56, first avoidance groove; 57, extension plate; 58, second avoidance groove; 59, lifting groove; 60, limiting hole; 61, ear rod; 62, second ball head; 63, ash collection box; 64, inspection box; 65, threaded ring; 66, exhaust pipe; 67, steam delivery pipe; 68, water inlet pipe; 69, water outlet pipe; 70, steam pressure gauge; 71, temperature sensor; 72, second guide groove. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0037] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0038] For example, see Figure 1-17 , the present invention provides the following technical solutions:

[0039] A biomass water tube steam boiler, specifically, comprises a boiler body 1; a heat conducting plate 2 is fixed between the inner walls of the boiler body 1; the heat conducting plate 2 divides the boiler body 1 into a heating chamber 3 and a furnace chamber 4; a combustion device 5 is fixedly installed on the side of the boiler body 1 and is rotatably matched with the inner wall of the furnace chamber 4; a mounting opening 6 is provided on the inner wall of the furnace chamber 4; the combustion device 5 comprises a feeding part 7; the feeding part 7 comprises a transverse feeding cylinder 8; a curved grate 9 is fixedly provided at the end of the transverse feeding cylinder 8; a transverse auger 10 is rotatably provided inside the transverse feeding cylinder 8; a coaxially arranged horizontal auger 10 is fixedly connected to the end of the horizontal auger 10 The turning part 11 comprises a fixed plate 12; a ring plate 13 is fixed to the side of the fixed plate 12; an annular groove rotatably matched with the ring plate 13 is provided on the inner wall of the furnace chamber 4; a plurality of curved rotating barrels 15 rotatably matched with the outer peripheral side of the curved grate 9 are evenly fixed to the side of the fixed plate 12, and a curved scraper 16 rotatably matched with the inner peripheral side of the curved grate 9 is fixed to its side between two adjacent curved rotating barrels 15; a plurality of ash discharge holes 17 are evenly provided on the inner wall of the curved rotating barrel 15; a plurality of ash discharge grooves 18 are evenly provided on the inner wall of the curved scraper 16; a discharge groove 19 is provided on the inner wall of the curved grate 9.

[0040] Working principle of the first embodiment:

[0041] By controlling the rotation of the transverse auger 10, the biomass fuel is transported to the curved grate 9 for combustion. During the rotation of the transverse auger 10, the turning part 11 is driven to rotate around the curved grate 9. When the curved rotating barrel 15 rotates to just below the discharge chute 19, the biomass fuel at the bottom of the curved grate 9 falls into the curved rotating barrel 15. As the curved rotating barrel 15 rotates and rises above the curved grate 9, the biomass fuel in the curved rotating barrel 15 falls back into the curved grate 9 under the action of gravity, thereby realizing the turning of the biomass fuel. The horizontal auger 10 can prevent the biomass particles from being insufficiently burned inside the boiler body 1, thereby improving the combustion effect of the boiler body 1; in the process of conveying biomass fuel, the horizontal auger 10, the pushing part 53 and the linkage between various components can realize the unidirectional pushing and leveling of the biomass fuel inside the curved grate 9 by the pushing part 53, and the turning part 11 can turn the biomass particles, effectively preventing the new fuel from being directly cast onto the burning fuel in a large area, thereby improving the use effect of the boiler body 1.

[0042] For example 2, please refer to Figure 1-17The second embodiment makes the following improvements on the basis of the first embodiment. Specifically, a first motor 20 is fixedly installed at the end of the horizontal feed cylinder 8; the output end of the first motor 20 is fixedly connected to one end of the horizontal auger 10 through a reducer; a vertical feed cylinder 21 is connected to the side surface of the horizontal feed cylinder 8; a conical material box 22 is connected to the top of the vertical feed cylinder 21; a mounting plate 23 is fixed to the top of the conical material box 22; a second motor 24 is fixedly installed on the top of the mounting plate 23; a vertical auger 25 is rotatably arranged through the bottom surface of the mounting plate 23; the output end of the second motor 24 is fixedly connected to the end of the vertical auger 25.

[0043] A connecting shaft 26 is fixed to the side of the fixing plate 12; the end of the connecting shaft 26 is connected to the end of the transverse auger 10 through an insulation layer; the insulation layer is an axial insulation layer, the material of which is aerogel felt, and is fixed with bolts with hinged holes; a connecting ring 27 is fixed between the ends of each curved rotating barrel 15; a connecting flange 28 placed on the outside of the mounting port 6 is fixed to the side of the transverse auger 10; the connecting flange 28 is fixedly installed on the side of the boiler body 1 by fastening bolts.

[0044] Working principle of the second embodiment:

[0045] The output ends of the first motor 20 and the second motor 24 are respectively connected to the horizontal auger 10 and the vertical auger 25 through the reducer. The second motor 24 is controlled to start to drive the vertical auger 25 to rotate slowly, so that the biomass fuel in the conical material box 22 is transported into the horizontal feed cylinder 8 through the vertical feed cylinder 21. The first motor 20 is synchronously controlled to start to drive the horizontal auger 10 to rotate slowly, and the biomass fuel continuously transported from the vertical feed cylinder 21 is transported to the curved grate 9, thereby completing the transportation of the biomass fuel.

[0046] The end of the connecting shaft 26 is connected to the end of the transverse auger 10 through an aerogel felt insulation layer, which reduces the heat transmitted to the components on the shaft, can effectively isolate the axial heat transfer of the drive shaft, and at the same time can ensure that the drive shaft can transmit power normally. For specific related content, see the high-temperature resistant shaft insulation structure with announcement number CN209925876U, which will not be repeated here.

[0047] Each group of curved scrapers 16 is rotatably matched with the inner side surface of the curved grate 9, and each group of curved rotating barrels 15 is rotatably matched with the outer side surface of the curved grate 9. Each group of curved scrapers 16 and curved rotating barrels 15 are arranged alternately in sequence. When the curved rotating barrel 15 rotates to below the discharge trough 19, the biomass fuel on the bottom surface of the curved grate 9 falls into the corresponding curved rotating barrel 15 through the discharge trough 19, and then rises with the rotation of the curved rotating barrel 15 and separates from the discharge trough 19. The adjacent curved scrapers 16 rotate synchronously to block the discharge trough 19. During this process, the curved scrapers 16 turn over the biomass fuel inside the curved grate 9, further improving the combustion effect of the biomass fuel; most of the ash generated during the combustion process falls into the ash collecting box 63 through the ash discharge hole 17 and the ash discharge trough 18 and is collected.

[0048] For example 3, please refer to Figure 1-17 , the third embodiment is improved on the basis of the second embodiment as follows, specifically, the outer peripheral side of the transverse feeding cylinder 8 is connected to a first installation box 29; a blower 30 is installed on the top of the first installation box 29; the output end of the blower 30 extends into the first installation box 29; the top of the first installation box 29 is connected to a second installation box 31; an electric push rod 32 is fixed through the top of the second installation box 31; a slide plate 33 that slides with the inner wall of the second installation box 31 is fixed at the telescopic end of the electric push rod 32; an oblique guide groove 34 is provided on the bottom surface of the slide plate 33; a controller is installed on the top of the second installation box 31; a first baffle 35 and a second baffle 36 are fixed on the bottom surface of the oblique guide groove 34 in sequence; a first pressure sensor and a second pressure sensor are installed on the sides of the first baffle 35 and the second baffle 36 in sequence; the input end of the controller is electrically connected to the first pressure sensor and the second pressure sensor respectively, and its output end is electrically connected to the first motor 20, the second motor 24, the blower 30 and the electric push rod 32 respectively.

[0049] Slide rods 37 are symmetrically fixed between the inner walls of the first installation box 29; a sliding portion 38 slidably matched with the slide rod 37 is slidably arranged between the inner walls of the first installation box 29; the sliding portion 38 includes a fixed seat 39; sliding holes 40 slidably matched with the slide rod 37 are symmetrically opened on the side of the fixed seat 39; a return spring 41 sleeved on the corresponding slide rod 37 is symmetrically fixedly connected between the fixed seat 39 and the inner wall of the first installation box 29; a vertical plate 42 is symmetrically fixed on the top of the fixed seat 39; a guide groove 43 is opened on the side of the vertical plate 42; a lifting portion 44 is slidably arranged between the two guide grooves 43.

[0050] The lifting part 44 includes a lifting plate 45; guide plates 46 that slide in cooperation with the guide groove 43 are fixed on two opposite sides of the lifting plate 45; a tension spring 47 is fixedly connected between the guide plate 46 and the top of the guide groove 43; a guide ball 48 that matches the inclined guide groove 34 is fixed on the top of the lifting plate 45; a guide hole 49 is opened on the top of the fixing seat 39; a lifting rod 50 that slides in cooperation with the guide hole 49 is fixed on the bottom surface of the lifting plate 45; a first ball head 51 is fixed to the bottom end of the lifting rod 50.

[0051] The first installation box 29 has a first guide groove 43 symmetrically inclined downwardly formed on its inner wall; the first installation box 29 has a second guide groove 72 in communication with the bottom end of the corresponding first guide groove 43 formed on its inner wall;

[0052] A limit rod 52 is symmetrically fixed on the top of the fixed seat 39; a pushing part 53 slidably matched with the limit rod 52 is slidably arranged between the two vertical plates 42; the pushing part 53 includes a pushing plate 54; a plurality of shift plates 55 are fixed to the bottom surface of the pushing plate 54; a first avoidance groove 56 slidably matched with the connecting shaft 26 is opened on the side of the pushing plate 54; an extension plate 57 is symmetrically fixed on the side of the pushing plate 54; a second avoidance groove 58 slidably matched with the extension plate 57 is symmetrically opened on the inner wall of the first installation box 29; a lifting groove 59 slidably matched with the vertical plate 42 is opened on the surface of the extension plate 57 near its end; a limit hole 60 slidably matched with the limit rod 52 is opened on the surface of the extension plate 57; an ear rod 61 is fixed on the side of the extension plate 57; a second ball head 62 slidably matched with the first guide groove 43 and the second guide groove 72 is fixed on the end of the ear rod 61.

[0053] Working principle of the third embodiment:

[0054] In the initial state, the slide plate 33 is stored inside the second installation box 31. At this time, the second ball head 62 at the end of the extension plate 57 is placed at a high position of the first guide groove 43, that is, the extension plate 57 together with the push plate 54 at its end is close to the discharge end of the transverse feed tube 8 and away from the curved grate 9. Under the pulling force of the tension spring 47, the lifting rod 50 is driven to slide and rise along the guide hole 49 until the guide ball 48 is pressed against the lowest point of the inclined guide groove 34. At this time, the first ball head 51 does not contact the spiral blades on the transverse auger 10.

[0055] The electric push rod 32 is controlled to start and extend, driving the slide plate 33 to descend along the inner wall of the second installation box 31, thereby squeezing the lifting part 44 to make it slide and descend along the guide hole 49 until the lifting rod 50 extends into between the two adjacent spiral blades of the transverse auger 10. The rotating transverse auger 10 drives the lifting rod 50 to slide in the direction away from the conical material box 22, and the return spring 41 is stretched. In this process, the extension plate 57 is driven to slide synchronously. During the sliding process of the extension plate 57, the second ball head 62 is driven to slide in the guide groove 43, thereby driving the extension plate 57 to slide forward and descend, and then driving the push plate 54 to slide forward and descend and insert into the biomass fuel, spreading the accumulated biomass fuel flat, and preventing the transported biomass fuel from accumulating in the transverse feed tube 8; in this process, under the pulling force of the tension spring 47, the guide ball 48 slides and rises along the inclined guide groove 34, driving the lifting rod 50 to gradually slide and rise (in this process, the lifting rod 50 keeps in contact with the spiral blades of the transverse auger 10).

[0056] When the lifting plate 45 on the lifting part 44 rises to contact the second pressure sensor on the second baffle 36, the first ball head 51 at the bottom end of the lifting rod 50 disengages from the spiral blade on the transverse auger 10, and the pushing part 53 does not slide with the rotation of the transverse auger 10. At this time, the second pressure sensor transmits a signal to the controller, and the controller controls the electric push rod 32 to contract and drive the slide plate 33 to slide up and be stored in the second installation box 31, so that the guide ball 48 is disengaged from the inclined guide groove 34, and under the elastic reset force of the reset spring 41, the sliding part 38 is driven together with the lifting part 44 and the pushing part 53 to slide and reset in the opposite direction. During the reverse sliding reset process of the pushing part 53, the second ball head 62 thereon slides and resets while rising under the guiding action of the guide groove 43, so that the pushing plate 54 is separated from the biomass fuel during the reverse sliding reset process, thereby realizing the unidirectional pushing of the pushing part 53.

[0057] When the lifting part 44 slides up in the opposite direction and the lifting plate 45 thereon contacts the first pressure sensor on the first baffle 35, the first pressure sensor transmits a signal to the controller, and the controller starts the electric push rod 32 to extend it and drive the slide plate 33 to descend along the inner wall of the second installation box 31, thereby squeezing the lifting part 44 to slide down along the guide hole 49 until the lifting rod 50 extends between the two adjacent spiral blades of the transverse auger 10. The rotating transverse auger 10 drives the lifting rod 50 to slide in the direction away from the conical material box 22, completing a cycle of action, repeating the cycle, and realizing continuous one-way pushing of biomass fuel.

[0058] Example 4, please refer to Figure 1-17, the fourth embodiment of the present invention is improved as follows on the basis of the third embodiment. Specifically, an ash collecting box 63 is slidably provided through the inner wall of the furnace cavity 4; an inspection box 64 is fixed on the top of the heating cavity 3; a threaded ring 65 is fixed on the top of the inspection box 64; a sealing cover is screwed on the threaded ring 65; a smoke exhaust pipe 66 is connected to the side surface of the inspection box 64; a steam delivery pipe 67 is provided through the top of the heating cavity 3; a water inlet pipe 68 and a water outlet pipe 69 are sequentially provided through the inner wall of the heating cavity 3; a steam pressure gauge 70 and a temperature sensor 71 electrically connected to the input and output ends of the controller are sequentially provided near the inner top of the inner wall of the heating cavity 3; an electromagnetic valve electrically connected to the output end of the controller is provided on the water inlet pipe 68, the water outlet pipe 69 and the steam delivery pipe 67; a plurality of heat conducting pipes 14 are uniformly provided inside the heating cavity 3; the two ends of the heat conducting pipe 14 are respectively connected to the inspection box 64 and the furnace cavity 4; a plurality of heat conducting protrusions are provided on the heat conducting pipe 14 and the heat conducting plate 2.

[0059] Working principle of the fourth embodiment:

[0060] Water is added to the heating chamber 3 through the water inlet pipe 68, and the heat conduction plate 2 is heated by the combustion of biomass fuel, thereby heating the water inside the heating chamber 3. The heated water forms water vapor and is discharged through the steam delivery pipe 67 for utilization; the high-temperature flue gas generated during the combustion of biomass fuel passes through each group of heat conduction pipes 14 to heat the water in the heating chamber 3, thereby improving the utilization efficiency of the high-temperature flue gas. The flue gas after heat exchange enters the inspection box 64 and is discharged through the exhaust pipe 66.

[0061] Each group of heat-conducting pipes 14 in the boiler body that has stopped working is regularly cleared and cleaned. The sealing cover is removed, and each group of heat-conducting pipes 14 is cleared in turn using a clearing rod adapted to the heat-conducting pipes 14 to clean off the dust and dirt adhering to the inner wall of the heat-conducting pipes 14. The cleaned dust and dirt fall into the dust collecting box 63 and are collected, thereby improving the practicality of the device.

[0062] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0064] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0066] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A biomass water tube steam boiler, comprising a boiler body (1); characterized in that: A heat conducting plate (2) is fixed between the inner walls of the boiler body (1); the heat conducting plate (2) divides the boiler body (1) into a heating chamber (3) and a furnace chamber (4); a combustion device (5) is fixedly mounted on the side of the boiler body (1) and is rotatably matched with the inner wall of the furnace chamber (4); The inner wall of the furnace cavity (4) is provided with a mounting opening (6); the combustion device (5) comprises a feeding portion (7); the feeding portion (7) comprises a transverse feeding cylinder (8); a curved grate (9) is fixed to the end of the transverse feeding cylinder (8); a transverse auger (10) is rotatably provided inside the transverse feeding cylinder (8); The end of the transverse auger (10) is fixedly connected to a material turning portion (11) arranged coaxially with the curved grate (9); the material turning portion (11) comprises a fixing plate (12); an annular plate (13) is fixed to the side of the fixing plate (12); and an annular groove rotatably matched with the annular plate (13) is provided on the inner wall of the furnace cavity (4); A plurality of curved rotating barrels (15) rotatably matched with the outer peripheral side of the curved grate (9) are evenly fixed on the side of the fixed plate (12), and a curved scraper (16) rotatably matched with the inner peripheral side of the curved grate (9) is fixed on the side between two adjacent curved rotating barrels (15); The inner wall of the curved rotating barrel (15) is evenly provided with a plurality of ash discharge holes (17); the inner wall of the curved scraper (16) is evenly provided with a plurality of ash discharge grooves (18); and the inner wall of the curved grate (9) is provided with a discharge groove (19).

2. A biomass water tube steam boiler according to claim 1, characterized in that: A first motor (20) is fixedly installed at the end of the transverse material conveying cylinder (8); the output end of the first motor (20) is fixedly connected to one end of the transverse auger (10) via a reducer; a vertical material conveying cylinder (21) is connected to the side surface of the transverse material conveying cylinder (8); a conical material box (22) is connected to the top end of the vertical material conveying cylinder (21); A mounting plate (23) is fixed to the top of the conical material box (22); a second motor (24) is fixedly mounted on the top of the mounting plate (23); a vertical auger (25) is rotatably arranged through the bottom surface of the mounting plate (23); and an output end of the second motor (24) is fixedly connected to an end of the vertical auger (25).

3. A biomass water tube steam boiler according to claim 2, characterized in that: A connecting shaft (26) is fixed to the side of the fixing plate (12); the end of the connecting shaft (26) is connected to the end of the transverse auger (10) via a heat insulation layer; the heat insulation layer is an axial heat insulation layer, the material of which is aerogel felt and is fixed by bolts with hinged holes; a connecting ring (27) is fixed between the ends of each of the curved rotating barrels (15); A connecting flange (28) disposed outside the mounting opening (6) is fixed to the peripheral side of the transverse auger (10); the connecting flange (28) is fixed to the side of the boiler body (1) by means of fastening bolts.

4. The biomass water tube steam boiler according to claim 3, characterized in that: The outer peripheral side of the transverse material conveying cylinder (8) is connected to a first installation box (29); a blower (30) is installed on the top of the first installation box (29); the output end of the blower (30) extends into the interior of the first installation box (29); the top of the first installation box (29) is connected to a second installation box (31); an electric push rod (32) is fixed through the top of the second installation box (31); A slide plate (33) is fixed to the telescopic end of the electric push rod (32) and is slidably matched with the inner wall of the second installation box (31); an oblique guide groove (34) is provided on the bottom surface of the slide plate (33); A controller is installed on the top of the second installation box (31); a first baffle (35) and a second baffle (36) are fixed in sequence on the bottom surface of the inclined guide groove (34); a first pressure sensor and a second pressure sensor are installed in sequence on the sides of the first baffle (35) and the second baffle (36); an input end of the controller is electrically connected to the first pressure sensor and the second pressure sensor respectively, and an output end thereof is electrically connected to the first motor (20), the second motor (24), the blower (30) and the electric push rod (32) respectively.

5. The biomass water tube steam boiler according to claim 4, characterized in that: Slide rods (37) are symmetrically fixed between the inner walls of the first installation box (29); a sliding portion (38) that is slidably matched with the slide rod (37) is slidably arranged between the inner walls of the first installation box (29); the sliding portion (38) includes a fixed seat (39); sliding holes (40) that are slidably matched with the slide rod (37) are symmetrically opened on the side of the fixed seat (39); a return spring (41) that is sleeved on the corresponding slide rod (37) is symmetrically fixedly connected between the fixed seat (39) and the inner wall of the first installation box (29); A vertical plate (42) is symmetrically fixed on the top of the fixing seat (39); a guide groove (43) is opened on the side of the vertical plate (42); and a lifting part (44) is slidably arranged between the two guide grooves (43).

6. The biomass water tube steam boiler according to claim 5, characterized in that: The lifting part (44) comprises a lifting plate (45); guide plates (46) which are slidably matched with the guide groove (43) are fixed on two opposite sides of the lifting plate (45); a tension spring (47) is fixedly connected between the guide plate (46) and the top of the guide groove (43); a guide ball (48) which is matched with the inclined guide groove (34) is fixed on the top of the lifting plate (45); a guide hole (49) is opened on the top of the fixing seat (39); a lifting rod (50) which is slidably matched with the guide hole (49) is fixed on the bottom surface of the lifting plate (45); and a first ball head (51) is fixed on the bottom end of the lifting rod (50).

7. The biomass water tube steam boiler according to claim 6, characterized in that: The inner wall of the first installation box (29) is provided with a first guide groove (43) symmetrically inclined downward; the inner wall of the first installation box (29) is provided with a second guide groove (72) communicating with the bottom end of the corresponding first guide groove (43); A limiting rod (52) is symmetrically fixed on the top of the fixed seat (39); a pushing portion (53) slidably matched with the limiting rod (52) is slidably arranged between the two vertical plates (42); the pushing portion (53) includes a pushing plate (54); a plurality of shifting plates (55) are fixed to the bottom surface of the pushing plate (54); a first avoidance groove (56) slidably matched with the connecting shaft (26) is provided on the side surface of the pushing plate (54); An extension plate (57) is symmetrically fixed to the side of the push plate (54); a second avoidance groove (58) slidably matched with the extension plate (57) is symmetrically provided on the inner wall of the first installation box (29); a lifting groove (59) slidably matched with the vertical plate (42) is provided on the surface of the extension plate (57) near its end; a limiting hole (60) slidably matched with the limiting rod (52) is provided on the surface of the extension plate (57); an ear rod (61) is fixed to the side of the extension plate (57); and a second ball head (62) slidably matched with the first guide groove (43) and the second guide groove (72) is fixed at the end of the ear rod (61).

8. The biomass water tube steam boiler according to claim 7, characterized in that: An ash collecting box (63) is slidably provided through the inner wall of the furnace chamber (4); an inspection box (64) is fixed on the top of the heating chamber (3); a threaded ring (65) is fixed on the top of the inspection box (64); a sealing cover is screwed onto the threaded ring (65); a smoke exhaust pipe (66) is provided on the peripheral side of the inspection box (64); A steam delivery pipe (67) is provided through the top of the heating chamber (3); a water inlet pipe (68) and a water outlet pipe (69) are provided through the inner wall of the heating chamber (3) in sequence; a steam pressure gauge (70) and a temperature sensor (71) are provided through the inner wall of the heating chamber (3) near the top thereof in sequence, and are electrically connected to the input and output ends of the controller; and a solenoid valve electrically connected to the output end of the controller is provided on the water inlet pipe (68), the water outlet pipe (69) and the steam delivery pipe (67); A plurality of heat-conducting pipes (14) are evenly arranged inside the heating chamber (3); two ends of the heat-conducting pipes (14) are respectively connected to the inspection box (64) and the furnace chamber (4); and a plurality of heat-conducting protrusions are arranged on the heat-conducting pipes (14) and the heat-conducting plate (2).

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