Efficient and energy-saving biomass boiler combustion equipment

Abstract

The invention relates to the technical field of biomass combustion equipment of boilers, and discloses efficient energy-saving biomass boiler combustion equipment which comprises a combustion furnace, an air bellow machine and an integrated heat energy recovery system, a combustion chamber outer wall heat utilization part composed of a snake-shaped heat exchange pipe is arranged in the combustion furnace, and waste heat steam circulation is achieved through linkage of a water level sensor and an electromagnetic valve; the material steaming part adopts a nested structure of a spiral pipe and an inner container, combustion waste heat is introduced through a steam pipe to dry high-humidity fuel on line, and water vapor is discharged through a net-shaped structure; the dredging device is linked with an arc cone plate through an electric driving mechanism to rotate and disturb, and intelligent dredging of a feeding channel is achieved by combining opening and closing control of a folding cylinder. A heat energy closed-loop utilization system is innovatively constructed, fuel self-drying and combustion stability optimization are achieved, the technical problems that traditional equipment is low in waste heat utilization rate and humid fuel is insufficient in combustion are solved, the heat efficiency of biomass fuel is improved, and the biomass combustion device is particularly suitable for continuous efficient combustion operation in high-humidity weather or environment.

Description

Technical Field

[0001] The invention relates to the technical field of biomass fuel combustion equipment, and in particular to a high-efficiency and energy-saving biomass boiler combustion equipment. Background Art

[0002] Biomass burners, as equipment that provides a heating source for boilers, usually burn biomass fuel pellets. Their combustion efficiency and fuel adaptability are directly related to energy utilization. Existing biomass combustion equipment usually has the problem of insufficient fuel pretreatment. Especially in humid weather or environment, biomass fuel pellets are not fully burned and have a significant loss of calorific value due to insufficient dryness. Traditional solutions mostly rely on external heat sources to pre-dry the fuel, but the additional energy consumption is high and the system is complex. In addition, the efficiency of waste heat recovery is low, and a large amount of heat energy is lost through the flue, further exacerbating energy waste. How to use the waste heat from combustion to achieve fuel self-drying and optimize combustion stability has become a key problem in improving the energy efficiency of biomass boilers.

[0003] Existing biomass combustion equipment cannot effectively utilize the waste heat from combustion to pre-treat biomass fuel particles that are not dry enough in humid weather or environment, resulting in decreased combustion efficiency and energy waste. Summary of the invention

[0004] The present invention provides a high-efficiency and energy-saving biomass boiler combustion equipment, which effectively utilizes combustion waste heat, realizes closed-loop utilization of thermal energy, and processes biomass fuel particles with insufficient dryness, thereby improving the combustion efficiency and effect of biomass fuel particles and reducing energy waste.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows: In the first aspect, a high-efficiency and energy-saving biomass boiler combustion device comprises a combustion furnace and a bellows connected to one side of the combustion furnace, the combustion furnace is provided with a furnace cover, a heat insulation tile is fixed in the combustion furnace, a combustion chamber is provided in the heat insulation tile, an auger is connected to the furnace cover, an input end of the auger is connected to a receiving hopper, a nozzle is connected to the other side of the combustion furnace, and the nozzle is connected to the combustion chamber, and further comprises: The heat benefit part includes a heat collecting part and a steam part. The heat collecting part is arranged outside the combustion chamber. The steam part is connected to the heat collecting part and passes through the furnace cover. The heat collecting part includes a heat exchange tube arranged in a serpentine shape outside the combustion chamber, a water level sensor for monitoring the water level of the heat exchange tube and a solenoid valve for controlling the water flow input. The steam part includes a steam pipe connected to the heat exchange tube to recover the waste heat of combustion to generate steam. Steam material part, the steam material part includes a material injection part and a steam transmission part. The material injection part is arranged in the material receiving hopper, the steam transmission part is arranged on one side of the material injection part and penetrates through the material receiving hopper to be connected with the steam transmission part. The material injection part includes a spiral pipe, an inner liner and a folding cylinder in the material receiving hopper. The steam transmission part includes an L-shaped pipe communicated with a steam pipe to dry biomass fuel particles by using steam; Blocking and dredging part, including a rotatable rotating ring, an arc cone plate penetrating through the rotating ring and an electric rod for driving the arc cone plate to move to dredge fuel blockage.

[0006] Further, the heat collecting part includes: There is a cavity between the heat insulation tile and the combustion chamber; A heat exchange pipe is arranged in the cavity, is serpentinely arranged outside the combustion chamber and fits with the combustion chamber; There are two water level sensors, which penetrate through the heat exchange pipe; One of the water level sensors is close to the input end of the heat exchange pipe, and the other water level sensor is close to the output end of the heat exchange pipe; A solenoid valve is fixed at the input end of the heat exchange pipe.

[0007] Further, the steam part includes: A steam pipe penetrates through the furnace cover and one end is communicated with the heat exchange pipe; An electric control three-way valve is connected to the other end of the steam pipe; Flange plates are respectively connected to the electric control three-way valve and the output end of the heat exchange pipe.

[0008] Further, the material injection part includes: The spiral pipe is fixedly connected to the inner side of the material receiving hopper through a fixing part; A feed hopper is fixed at one end of the spiral pipe; The inner liner is arranged inside the spiral pipe, both ends are covered by the spiral pipe, has the same shape as the spiral pipe and is integrally formed with the spiral pipe; The folding cylinder is fixed at the other end of the spiral pipe and is communicated with the output end of the feed hopper; An adjusting part movably penetrates through one side of the material receiving hopper and is connected to the folding cylinder.

[0009] Further, the adjusting part includes: A limiting plate is fixed on the outer side of the spiral pipe; A pulling plate is fixed on the outer side of the folding cylinder and is close to the bottom end of the folding cylinder; A pulling rope movably penetrates through the material receiving hopper and the limiting plate, and one end is fixedly connected to the pulling plate; An elastic rope, one end of which is fixedly connected to the other end of the pulling rope; A pushing stator part is connected to the other end of the elastic rope.

[0010] Furthermore, the steam conveying member includes: A water-vapor network, which is arranged through the spiral tube and the side of the inner tank away from the auger; An L-shaped pipe, one end of which is fixedly connected to the other end of the steam pipe through a connecting member, and the other end penetrates through the feeding hopper and is communicated with the spiral tube; A cotton sleeve, which is sleeved on the outside of the L-shaped pipe; A space is provided between the inner tank and the spiral tube to allow steam to flow through.

[0011] Furthermore, the pusher stator part includes: A collar, which is sleeved on the outside of the cotton sleeve and fixedly connected to the other end of the elastic cord; A loop line, which is engraved on the outside of the cotton sleeve and is located on one side of the collar; A ring groove, which is opened on the inner side of the collar; A spring, which is arranged in the ring groove and one end of which is fixedly connected to the collar; A friction block, which is fixedly connected to the other end of the spring, has a curvature, and fits with the cotton sleeve.

[0012] Furthermore, the dredging and blocking part includes a rotating and pulling member and an inserting and dredging member. The rotating and pulling member is rotatably arranged on the outside of the spiral tube and is connected to the feeding member. The inserting and dredging member penetrates through the rotating and pulling member and is connected to the spiral tube. The rotating and pulling member includes: A square-round plate, which is fixed on the outside of the spiral tube, has an inner square and an outer round shape, and is close to the folding cylinder; A bearing, which is fixed on the outside of the square-round plate; A rotating ring, which is connected to the outside of the bearing; There are a plurality of through holes, which are evenly opened through the rotating ring; A pulling and moving part, which movably penetrates through the feeding hopper and is connected to the feeding member.

[0013] Furthermore, the pulling and moving part includes: Two T-shaped rods, which are respectively fixed above the rotating ring and on one side of the collar; A rocker, which movably penetrates through the feeding hopper and both ends of which are respectively rotatably connected to the two T-shaped rods; A guide groove, which is opened through the feeding hopper; A guide plate, which is sleeved on the outside of the rocker and is movably and guidingly connected to the guide groove; Two elastic membranes, which are symmetrically arranged on the inner side of the guide groove, and one end of which is fixedly connected to the feeding hopper and the other end of which is fixedly connected to the guide plate.

[0014] Furthermore, the inserting and dredging member includes: A switch, which is fixedly arranged through the limiting plate and is located above the pulling plate; An electric rod, which is fixedly connected to the outside of the spiral tube through a connecting member; A semi-circular rod, which is arranged above the rotating ring, and one end of which is welded to the telescopic end of the electric rod through a connecting member; There are multiple rubber bands, one end of which is fixedly connected to the semi-circular rod; There are multiple arc cone plates, which are respectively fixed at the other ends of the multiple rubber bands. One end of each arc cone plate is sharp, and the sharp end movably penetrates through the rotating ring; The pressing plate is fixed on the outer side of the arc cone plate, close to the top end of the arc cone plate, and contacts the semi-circular rod.

[0015] The above solution of the present invention has at least the following beneficial effects: By integrating the heat utilization part and the steam material part, the combustion waste heat is converted into steam and directionally transported to the spiral pipeline in the receiving hopper. The biomass fuel is dried online using the heat exchange principle, significantly reducing the fuel humidity and improving the combustion efficiency; at the same time, the closed-loop utilization of heat energy is realized, reducing the dependence on external energy, enabling the equipment to still operate stably in a humid environment and improving the comprehensive energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic perspective view of the overall three-dimensional structure of the high-efficiency and energy-saving biomass boiler combustion equipment provided by an embodiment of the present invention; Figure 2 It is a schematic cross-sectional plan view of the combustion furnace provided by an embodiment of the present invention; Figure 3 It is a schematic perspective view of the combined cross-section of the heat exchange tube, L-tube and cotton sleeve provided by an embodiment of the present invention; Figure 4 It is a schematic perspective view of the combined structure of the spiral tube, feeding hopper, semi-circular rod and water vapor net provided by an embodiment of the present invention; Figure 5 It is a schematic perspective view of the combined structure of the cross-section of the spiral tube, collar and folding cylinder provided by an embodiment of the present invention; Figure 6 provided by an embodiment of the present invention Figure 1 structural schematic diagram at position A in; Figure 7 provided by an embodiment of the present invention Figure 4 structural schematic diagram at position B in; Figure 8 provided by an embodiment of the present invention Figure 5 structural schematic diagram at position C in; Figure 9 It is a schematic perspective view of the combined structure of the collar, elastic cord and rocker provided by an embodiment of the present invention; Figure 10 It is a schematic perspective view of the combined structure of the square-round plate, electric rod, rocker and arc cone plate provided by an embodiment of the present invention; Figure 11 It is a schematic perspective view of the rocker provided by an embodiment of the present invention; Figure 12Schematic three-dimensional structure diagram of the combination of the guide groove and the guide plate provided by the embodiment of the present invention.

[0017] Explanation of reference numerals: In the figure: 1, base; 2, combustion furnace; 3, furnace cover; 4, heat insulation tile; 5, combustion chamber; 6, observation window; 7, slag discharge pipe; 8, slag discharge door; 9, burner; 10, check valve pipe; 11, auger; 12, receiving hopper; 13, heat exchange pipe; 14, steam pipe; 15, water level sensor; 16, flange; 17, solenoid valve; 18, electric control three-way valve; 19, spiral pipe; 20, feeding hopper; 21, inner tank; 22, water vapor network; 23, L-shaped pipe; 24, cotton sleeve; 25, folding cylinder; 26, limiting plate; 27, pulling plate; 28, pulling rope; 29, elastic rope; 30, collar; 31, loop line; 32, push rod; 33, annular groove; 34, spring; 35, friction block; 36, square and round plate; 37, bearing; 38, rotating ring; 39, through hole; 40, fixing plate; 41, T-shaped rod; 42, rotating sleeve; 43, rocker; 44, switch; 45, electric rod; 46, connecting plate; 47, semi-circular rod; 48, rubber band; 49, arc cone plate; 50, pressing plate; 51, guide groove; 52, guide plate; 53, elastic film; 54, air blower. Detailed implementation manners

[0018] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be fully conveyed to those skilled in the art.

[0019] As Figures 1 to 12 shown, the embodiment of the present invention provides an efficient and energy-saving biomass boiler combustion device, including a combustion furnace 2 and an air blower 54 connected to one side of the combustion furnace 2. A furnace cover 3 is provided on the combustion furnace 2. A heat insulation tile 4 is fixed inside the combustion furnace 2. A combustion chamber 5 is provided inside the heat insulation tile 4. An auger 11 is connected to the furnace cover 3. The input end of the auger 11 is connected to a receiving hopper 12. A burner 9 is connected to the other side of the combustion furnace 2, and the burner 9 is communicated with the combustion chamber 5. It further includes: A heat utilization part, which is serpentinely arranged outside the combustion chamber 5 and penetrates through the furnace cover 3 to recover and utilize the combustion heat; A material steaming part, which is arranged inside the receiving hopper 12, the output end is communicated with the output end of the receiving hopper 12, and penetrates through the receiving hopper 12 to be communicated with the heat utilization part, to add combustion materials and utilize the recovered heat to dry the combustion materials; A clogging removal part, which is rotatably arranged inside the receiving hopper 12 and is connected to the material steaming part to dredge the blockage between the receiving hopper 12 and the material steaming part.

[0020] Specifically, the base 1 is fixed below the combustion furnace 2 and the bellows machine 54 to stably support the combustion furnace 2 and the bellows machine 54. An observation window 6 is disposed through the interior of the combustion furnace 2, and the observation window 6 penetrates through the heat insulation tile 4 and communicates with the combustion chamber 5. A slag discharge pipe 7 is disposed through the outside of the combustion furnace 2 and is located below the observation window 6. A slag leakage port is provided at the bottom end of the combustion chamber 5 to allow the combustion waste residue to leak down into the combustion furnace 2. One end of the slag discharge pipe 7 is connected to a slag discharge door 8 through a fixing member. The furnace cover 3 and the bellows machine 54 are connected with a check pipe 10, and the output end of the bellows machine 54 penetrates through the combustion furnace 2 and is connected to the combustion chamber 5. The receiving hopper 12 is made of a transparent material to facilitate the staff to pass through the receiving hopper 12 to penetrate the biomass fuel particles.

[0021] The base 1 can provide stable support for the combustion furnace 2 and the bellows machine 54. The bellows machine 54 can input external air into the combustion chamber 5. The combustion furnace 2 can provide stable support for the heat insulation tile 4 and the furnace cover 3. The heat insulation tile 4 can play a heat insulation role to prevent the combustion furnace 2 from scalding people, and the heat insulation tile 4 can provide stable support for the combustion chamber 5. After the furnace cover 3 is fixed above the combustion furnace 2, it can cover the combustion chamber 5, so that the combustion chamber 5 can provide a combustion space for the biomass fuel, and an igniter is arranged in the combustion chamber 5 to ignite the biomass fuel. The furnace cover 3 can provide stable support for the auger 11. The auger 11 can convey the biomass fuel particles into the furnace cover 3, so that the biomass fuel particles can fall into the combustion chamber 5. The auger 11 can provide stable support for the receiving hopper 12. The receiving hopper 12 can provide a passage for the biomass fuel particles to enter the auger 11. The observation window 6 can facilitate the staff to observe the flame condition in the combustion chamber 5. The slag discharge door 8 can provide a discharge passage for the combustion waste residue in the combustion furnace 2, and the check pipe 10 can prevent backfire In the actual application process of this embodiment: The staff needs to connect the burner 9 to the boiler, and can inject the biomass fuel particles into the inner side of the receiving hopper 12 according to the actual needs. At the same time, the staff needs to control the folding cylinder 25 to fold upward to open the opening between the receiving hopper 12 and the spiral pipe 19, so that the biomass fuel particles can pass through the opening and be discharged from the output end of the receiving hopper 12 into the auger 11. At the same time, start the auger 11 to convey the biomass fuel particles into the combustion chamber 5, then start the igniter to ignite the biomass fuel particles, and control the operation of the bellows machine 54 to convey air into the combustion chamber 5. And the staff can control the air flow rate entering the combustion chamber 5 by adjusting the operation power of the bellows machine 54, so as to control the combustion effect. When the biomass fuel particles burn to produce waste residue, the waste residue will fall under the action of gravity through the slag leakage port into the combustion furnace 2 and accumulate, and the flame in the combustion chamber 5 will enter the burner 9 under the action of the wind force of the bellows machine 54 and be ejected into the boiler under the guidance of the burner 9.

[0022] The staff can remove the fixing components that fix the slag discharge door 8 as needed to open the slag discharge door 8, and then discharge the combustion waste slag accumulated in the combustion furnace 2 through the slag discharge pipe 7.

[0023] As a preferred embodiment of the present invention, the heat utilization part includes a heat collecting part and a steam part. The heat collecting part is arranged outside the combustion chamber 5, the steam part is connected to the heat collecting part and penetrates through the furnace cover 3. The heat collecting part includes: There is a cavity between the heat insulation tile 4 and the combustion chamber 5; The heat exchange tube 13 is arranged in the cavity, and is serpentinely arranged outside the combustion chamber 5 and fits with the combustion chamber 5; There are two water level sensors 15, which penetrate through the heat exchange tube 13; One of the water level sensors 15 is close to the input end of the heat exchange tube 13, and the other water level sensor 15 is close to the output end of the heat exchange tube 13; The electromagnetic valve 17 is fixed at the input end of the heat exchange tube 13.

[0024] Specifically, the cavity can provide a setting space for the heat exchange tube 13, and the heat insulation tile 4 can provide a supporting and positioning function for the heat exchange tube 13. The heat exchange tube 13 can provide a flow channel for water and steam, and can absorb the heat of the combustion chamber 5 and transfer it to the water flowing inside. When one of the water level sensors 15 cannot sense water, it will control the electromagnetic valve 17 to open, and when the other water level sensor 15 senses water, it will control the electromagnetic valve 17 to close.

[0025] The steam part includes: The steam pipe 14 penetrates through the furnace cover 3 and one end is communicated with the heat exchange tube 13; The electric control three-way valve 18 is connected to the other end of the steam pipe 14; Flange plates 16 are respectively connected to the output end of the electric control three-way valve 18 and the heat exchange tube 13.

[0026] Specifically, the steam pipe 14 can provide a flow channel for steam under the support of the heat exchange tube 13, and can provide support for the electric control three-way valve 18. The electric control three-way valve 18 can provide a penetrating channel for steam, and the electric control three-way valve 18 and the heat exchange tube 13 can provide support for the flange pipe.

[0027] In the actual application process of this embodiment, the staff uses the fixing component to connect the flange 16 where the water delivery pipeline is connected to the output end of the solenoid valve 17 and the output end of the heat exchange pipe 13, so that water can pass through the solenoid valve 17 and enter the heat exchange pipe 13 when the solenoid valve 17 is opened, and the water can pass through the heat exchange pipe 13 and be discharged to the connecting pipeline from the flange 16 at the output end for circulation. At this time, another water level sensor 15 will control the solenoid valve 17 to close and stop the flow of water after sensing the water. When the biomass fuel particles are burned in the combustion chamber 5, the generated heat will be conducted from the combustion chamber 5 to the heat exchange pipe 13. Then, the heat exchange pipe 13 will transfer the absorbed heat to the water inside it, thereby heating the water to boiling to generate steam. At the same time, the water level will decrease with boiling, and the generated steam will float upward, thus passing through the heat exchange pipe 13 and entering the inside of the steam pipe 14. When the water level in the heat exchange pipe 13 drops below one of the water level sensors 15, this water level sensor 15 will control the solenoid valve 17 to open, so that water can re-enter the heat exchange pipe 13 for circulation and replenishment. And the staff can, according to needs, use the fixing component to connect the steam delivery pipeline to the output end of the electric control three-way valve 18 and control the flow direction of the electric control three-way valve 18, so that the steam in the steam pipe 14 can pass through the electric control three-way valve 18 and be discharged to the pipeline connected to the output end of the electric control three-way valve 18 for the staff to export and use, thereby realizing the reuse of combustion waste heat and improving functionality and energy utilization rate.

[0028] In another preferred embodiment of the present invention, the steaming part includes a feeding part and a steam conveying part. The feeding part is arranged in the receiving hopper 12, and the steam conveying part is arranged on one side of the feeding part and penetrates through the receiving hopper 12 to be connected to the steam conveying part. The feeding part includes: A spiral tube 19, fixedly connected to the inner side of the receiving hopper 12 through a fixing component; A feeding hopper 20, fixed at one end of the spiral tube 19; An inner tank 21, arranged inside the spiral tube 19, with both ends covered by the spiral tube 19, having the same shape as the spiral tube 19 and integrally formed with the spiral tube 19; A folding cylinder 25, fixed at the other end of the spiral tube 19 and communicating with the output end of the feeding hopper 20; An adjusting part, movably penetrating through one side of the receiving hopper 12 and connected to the folding cylinder 25.

[0029] Specifically, the material receiving hopper 12 can provide a firm support for the spiral tube 19 through the fixing component. The spiral tube 19 can support the feeding hopper 20, and the feeding hopper 20 can provide a filling space for the biomass fuel particles. The spiral tube 19 can support and protect the inner liner 21, and there is a space between the spiral tube 19 and the inner liner 21 for steam to flow through. The spiral tube 19 can provide a firm support for the folding cylinder 25. The folding cylinder 25 can be folded and contracted under the action of an external force. The inner liner 21 and the folding cylinder 25 can provide a through channel and a guiding function for the biomass fuel particles, and the inner liner 21 can cooperate with the spiral tube 19 to extend the moving path of the biomass fuel particles and increase the time for the biomass fuel particles to be heated by steam.

[0030] The adjusting parts include: The limiting plate 26 is fixed on the outer side of the spiral tube 19; The pulling plate 27 is fixed on the outer side of the folding cylinder 25 and close to the bottom end of the folding cylinder 25; The pulling rope 28 movably penetrates through the material receiving hopper 12 and the limiting plate 26, and one end thereof is fixedly connected to the pulling plate 27; One end of the elastic rope 29 is fixedly connected to the other end of the pulling rope 28; The pushing stator part is connected to the other end of the elastic rope 29.

[0031] Specifically, the limiting plate 26 can provide a through channel and a blocking and limiting function for the pulling rope 28 under the support of the spiral tube 19, so that the pulling rope 28 can change its moving direction under the action of an external force. The folding cylinder 25 can provide a firm support for the pulling plate 27. The pulling rope 28 can be connected to the folding cylinder 25 through the pulling plate 27 so as to pull the folding cylinder 25 to fold and contract by using an external force. After the external force acting on the folding cylinder 25 disappears, the folding cylinder 25 will expand and elongate downward by using gravity. The pulling rope 28 can support the elastic rope 29, and the elastic rope 29 can be stretched and deformed and thus elongated under the action of an external force, and will rebound after the external force disappears.

[0032] The steam conveying parts include: The water vapor net 22 is arranged through the side of the spiral tube 19 and the inner liner 21 away from the auger 11; One end of the L-shaped pipe 23 is fixedly connected to the other end of the steam pipe 14 through a connecting component, and the other end thereof penetrates through the material receiving hopper 12 and is communicated with the spiral tube 19; The cotton sleeve 24 is sleeved on the outer side of the L-shaped pipe 23.

[0033] Specifically, the spiral tube 19 and the inner liner 21 can provide a firm support for the water vapor net 22, such as Figure 5As shown, the integrally formed connection between the spiral tube 19 and the inner liner 21 blocks the steam from entering the water vapor network 22. The water vapor network 22 can provide a through-discharge channel for the water vapor in the biomass fuel particles conveyed into the inner liner 21. The steam pipe 14 can support the L-shaped pipe 23. The L-shaped pipe 23 can provide a channel for steam to enter between the spiral tube 19 and the inner liner 21, enabling the steam to transfer heat to the inner liner 21 between the spiral tube 19 and the inner liner 21. After the inner liner 21 absorbs heat, it will heat and evaporate the moisture in the biomass fuel particles on its inner side. The cotton sleeve 24 can, under the support of the L-shaped pipe 23, provide protection and heat insulation for the L-shaped pipe 23 to prevent the L-shaped pipe 23 from being exposed.

[0034] The pusher stator part includes: A collar 30, sleeved on the outer side of the cotton sleeve 24 and fixedly connected to the other end of the elastic cord 29; A loop line 31, engraved on the outer side of the cotton sleeve 24 and located on one side of the collar 30; A ring groove 33, opened on the inner side of the collar 30; A spring 34, arranged in the ring groove 33 and fixedly connected to the collar 30 at one end; A friction block 35, fixedly connected to the other end of the spring 34, having a radian and fitting with the cotton sleeve 24.

[0035] Specifically, push rods 32 are symmetrically arranged on the outer side of the collar 30. The cotton sleeve 24 can, under the support of the L-shaped pipe 23, provide support and movement guiding for the collar 30. The cotton sleeve 24 can support the loop line 31. The loop line 31 can facilitate the staff to judge the moving distance of the collar 30. The collar can provide a space for opening the ring groove 33. The ring groove 33 can provide a storage and movement space for the friction block 35 and the spring 34. The friction block 35 is made of rubber and can be closely attached to the cotton sleeve 24 by the elastic force of the spring 34, thereby positioning the collar 30 by using the frictional force.

[0036] In the actual application process of this embodiment, usually, the staff needs to push the collar 30 along the cotton sleeve 24 through the push rod 32 in the direction close to the loop line 31, so that the collar 30 uses an external force to push the spring 34 to contract under the support of the cotton sleeve 24 through the friction block 35. Furthermore, the friction block 35 can move in the direction close to the inside of the annular groove 33, and then the collar 30 can be pushed by an external force to move along the cotton sleeve 24. It is only necessary to move the collar 30 to the side of the loop line 31 away from the folding cylinder 25. At this time, the spring 34 will use the rebounding force to push the friction block 35 to closely adhere to the cotton sleeve 24 under the support of the collar 30, thereby positioning the collar 30. While moving, the collar 30 will pull the pull rope 28 through the elastic cord 29 to move through the material receiving hopper 12, so that the pull rope 28 pulls the pull plate 27 upward under the blocking and limiting of the limiting plate 26. Furthermore, the pull plate 27 can pull the bottom end of the folding cylinder 25 upward under the action of an external force, so that the folding cylinder 25 can be pulled and folded and contracted under the support of the spiral pipe 19, thereby opening an opening between the output ends of the spiral pipe 19 and the material receiving hopper 12, so that the normal biomass fuel material filled into the material receiving hopper 12 can pass through the opening and be discharged from the output end of the material receiving hopper 12 to the auger 11 for feeding; When the humidity of the weather causes the dryness of the biomass fuel particles to be insufficient, the staff needs to control the electric control three-way valve 18 to adjust the passage, so that the steam in the steam pipe 14 can enter the inside of the L pipe 23 under the guidance of the electric control three-way valve 18. Subsequently, the steam will pass through the L pipe 23 and be injected between the spiral pipe 19 and the inner liner 21. At the same time, the staff needs to push the collar 30 through the push rod 32, so that the collar 30 moves along the cotton sleeve 24 in the direction close to the folding cylinder 25 to the position as shown in Figure 7 shown, so as to relax the pulled pull rope 28 through the elastic cord 29. Subsequently, the folded folding cylinder 25 will use gravity to expand and extend downward, and at the same time pull the pull rope 28 to move downward through the material receiving hopper 12 and the limiting plate 26 to be as shown in Figure 8The state shown is such that the folding cylinder 25 can close the opening between the spiral tube 19 and the output end of the receiving hopper 12. Then, the biomass fuel particles with insufficient dryness are injected into the feeding hopper 20. The biomass fuel particles can pass through the feeding hopper 20 by gravity, fall into the inner tank 21 under the support of the spiral tube 19, and gradually move towards the output end of the receiving hopper 12 under the action of the inclination angle and guidance of the inner tank 21. During this process, steam will heat the biomass fuel particles through the inner tank 21 using heat, so that the moisture in the biomass fuel particles with insufficient dryness due to humid weather can be evaporated. The generated water vapor will pass through the water vapor net 22 and be discharged to the outside. Finally, the biomass fuel particles will pass through the inner tank 21 and enter the unfolded folding cylinder 25, and then enter the auger 11 for feeding under the guidance of the folding cylinder 25, thereby reducing the problem of poor combustion effect caused by insufficient dryness of the biomass fuel particles, facilitating the use of biomass fuel particles with insufficient dryness in humid weather, and improving the utilization rate of biomass fuel particles in bad weather.

[0037] As a preferred embodiment of the present invention, the blocking and dredging part includes a rotating and pulling part and an inserting and dredging part. The rotating and pulling part is rotatably arranged on the outer side of the spiral tube 19 and is connected to the feeding part. The inserting and dredging part penetrates through the rotating and pulling part and is connected to the spiral tube 19. The rotating and pulling part includes: A square-round plate 36, fixed on the outer side of the spiral tube 19, with an inner square and outer round shape and close to the folding cylinder 25; A bearing 37, fixed on the outer side of the square-round plate 36; A rotating ring 38, connected to the outer side of the bearing 37; A plurality of through holes 39, evenly opened through the rotating ring 38; A pulling and moving part, movably penetrating through the receiving hopper 12 and connected to the feeding part.

[0038] Specifically, the spiral tube 19 can provide a stable support for the square-round plate 36, the square-round plate 36 can provide a support for the bearing 37, the bearing 37 can provide a rotating support for the rotating ring 38, the rotating ring 38 can provide a space for opening the through holes 39, and the through holes 39 can provide a through channel for the arc cone plate 49.

[0039] The pulling and moving part includes: Two T-shaped rods 41, respectively fixed above the rotating ring 38 and on one side of the sleeve ring 30; A rocker 43, movably penetrating through the receiving hopper 12 and rotatably connected to the two T-shaped rods 41 at both ends; A guide groove 51, opened through the receiving hopper 12; A guide plate 52, sleeved on the outside of the rocker 43 and movably and guidingly connected to the guide groove 51; The elastic film 53 has two ends, which are symmetrically arranged inside the guide groove 51, with one end fixedly connected to the material receiving hopper 12 and the other end fixedly connected to the guide plate 52.

[0040] Specifically, a fixing plate 40 is fixed on one side of the collar 30 close to the T-bar 41. The T-bar 41 is fixedly connected to the collar 30 through the fixing plate 40. Rotating sleeves 42 are respectively fixed at both ends of the rocker 43, and the rotating sleeve 42 is rotatably connected to the T-bar 41. The T-bar 41 can provide rotational support for the rotating sleeve 42 under the support of the fixing plate 40 and the rotating ring 38, and the rotating sleeve 42 can provide support for the rocker 43. The material receiving hopper 12 can provide a space for the guide groove 51 to be opened. The guide groove 51 can provide lateral movement guidance for the guide plate 52. The guide plate 52 and the material receiving hopper 12 can provide support for the elastic film 53, and the guide plate 52 can drive the elastic film 53 to deform together during lateral movement. The elastic film 53 can cover the guide groove 51 to prevent the biomass fuel particles in the material receiving hopper 12 from leaking out to the outside through the guide groove 51.

[0041] The inserting and separating member includes: A switch 44, fixedly arranged through the limiting plate 26 and located above the pulling plate 27; An electric rod 45, fixedly connected to the outside of the spiral tube 19 through a connecting member; A semi-circular rod 47, arranged above the rotating ring 38, and one end is welded to the telescopic end of the electric rod 45 through a connecting member; Elastic bands 48, having a plurality of them, with one end fixedly connected to the semi-circular rod 47; Arc cone plates 49, having a plurality of them, respectively fixed to the other ends of the plurality of elastic bands 48, with one end being sharp, and the sharp end movably passing through the rotating ring 38; A pressing plate 50, fixed on the outside of the arc cone plate 49, close to the top of the arc cone plate 49, and in contact with the semi-circular rod 47.

[0042] Specifically, a connecting plate 46 is fixedly connected to the telescopic end of the electric rod 45, and the connecting plate 46 is welded to the semi-circular rod 47. The limiting plate 26 can provide stable support for the switch 44. When the switch 44 is triggered by extrusion, it will control the electric rod 45 to extend. When the extrusion force on the switch 44 disappears, it will pop out and control the electric rod 45 to contract. The electric rod 45 can provide support for the semi-circular rod 47 through the connecting plate 46 under the support of the spiral tube 19. The semi-circular rod 47 can provide support for the elastic bands 48. The elastic bands 48 can be stretched and deformed under the action of an external force, and will rebound when the external force disappears. They can provide support for the arc cone plate 49 under the support of the semi-circular rod 47. The semi-circular rod 47 can move downward to press the pressing plate 50 when the electric rod 45 extends, so that the pressing plate 50 can use the pressure, the guidance of the through hole 39, and the action of the own radian of the arc cone plate 49 to push the arc cone plate 49 downward through the through hole 39 and rotate inward.

[0043] In the actual application process of this embodiment, under normal circumstances, when the collar 30 moves to a position on the side of the loop line 31 away from the folding cylinder 25 and folds and contracts the folding cylinder 25, and directly uses the receiving hopper 12 to add biomass fuel particles into the auger 11 for feeding, the staff can observe through the transparent receiving hopper 12 whether the biomass fuel particles are blocked at the opening between the output end of the receiving hopper 12 and the spiral pipe 19.

[0044] When the folding cylinder 25 is folded and contracted by pulling the collar 30 and the pull rope 28, the pull plate 27 will gradually approach the limiting plate 26 as the folding cylinder 25 folds, and after the folding cylinder 25 is folded, the external force is used to squeeze and trigger the switch 44, so that the switch 44 controls the electric rod 45 to extend. The electric rod 45 will then use its telescopic end to push the connecting plate 46 downward, so that the connecting plate 46 drives the half-ring rod 47 to move downward together by external force. The half-ring rod 47 will contact the pressing plate 50 during the movement and squeeze the pressing plate 50 by external force, so that the pressing plate 50 uses the external force and the inclination angle to push the arc cone plate 49 downward, so that the arc cone plate 49 moves downward through the through hole 39 under the action of the external force and the guiding action of the through hole 39, and rotates inward (rotates in the direction close to the center line of the bearing 37) during the movement. At the same time, the arc cone plate 49 will drive the rubber band 48 to stretch and deform during the movement. When the staff needs to block the biomass fuel particles at the opening between the output end of the receiving hopper 12 and the spiral pipe 19 according to the actual situation, the collar 30 is pushed from the side of the loop line 31 away from the folding cylinder 25 along the cotton sleeve 24 to the side away from the folding cylinder 25 by the push rod 32. At this time, the movement of the pull rope 28 will be restricted by the folded folding cylinder 25, so that the collar 30 stretches and deforms the elastic cord 29 under the support of the pull rope 28 by external force during the movement, so that the collar 30 can move. The collar 30 will drive the connected T-bar 41 to move together through the fixing plate 40 during the movement, so that the T-bar 41 pulls one end of the rocker 43 through the rotating sleeve 42. At the same time, the rocker 43 will pull the rotating ring 38 through the rotating sleeve 42 and the T-bar 41 connected to the other end. At the same time, both ends of the rocker 43 will rotate around the T-bar 41 through the rotating sleeve 42 respectively, so that the rotating ring 38 rotates counterclockwise around the bearing 37 under the action of the external force. At the same time, the whole rocker 43 will swing horizontally and move together with the collar 30. The guide plate 52 can provide a through channel and a moving space for the rocker 43, and the rocker 43 will push the guide plate 52 to move horizontally along the guide groove 51 by external force during the swing. At the same time, the guide plate 52 will drive the elastic membrane 53 to move and deform together during the movement, so that the rotating ring 38 can push the arc cone plate 49 penetrating the through hole 39 to rotate together during the rotation. At the same time, the arc cone plate 49 will pull the rubber band 48 to stretch and deform under the support of the half-ring rod 47 during the rotation, so that the arc cone plate 49 can disturb the blocked biomass fuel material during the rotation and prevent the biomass fuel material from being blocked at the opening between the output end of the receiving hopper 12 and the spiral pipe 19.

[0045] After the push ring is pushed and reset to the position as shown in Figure 7 Figure, the pull plate 27 will separate from the switch 44, causing the switch 44 to bounce up, thereby controlling the electric rod 45 to contract and reset. The stretched rubber band 48 will rebound and reset using the elastic force, and the electric rod 45 will drive the rubber band 48 to move upward together through the semi-circular rod 47. The rubber band 48 will drive the arc cone plate 49 to move upward through the through hole 39 for reset.

[0046] Working principle: Biomass fuel pellets enter the auger 11 conveying mechanism through the transparent material receiving hopper 12 and are quantitatively conveyed to the combustion chamber 5 by the auger 11. The igniter in the combustion chamber 5 starts combustion. The air blower 54 adjusts the air intake according to the combustion demand to optimize the combustion efficiency. The combustion residue falls into the bottom of the combustion furnace 2 through the slag leakage port and is regularly cleaned through the slag discharge pipe 7 and the slag discharge door 8 to avoid the influence of accumulated slag on the combustion stability.

[0047] The outside of the combustion chamber 5 is covered with a serpentine heat exchange tube 13 to absorb the waste heat of combustion and heat the circulating water in the tube to generate high-temperature steam. The water level sensor 15 monitors the water level in the tube in real time and automatically adjusts the water supply through the solenoid valve 17 to ensure continuous and efficient heat exchange. The generated steam can select the output path through the electric control three-way valve 18, either directly for external use or introduced into the steaming part to dry the fuel. By recovering the waste heat of combustion through the heat exchange tube 13 to generate steam, the cascade utilization of heat energy is realized, the energy utilization rate is improved, the steam can be supplied externally and used to dry the fuel, reducing the influence of fuel moisture on the combustion efficiency, and the comprehensive thermal efficiency is improved.

[0048] When the fuel humidity is relatively high, the steam is introduced into the interlayer between the spiral tube 19 and the inner liner 21 through the L tube 23 to evaporate the fuel moisture using the steam heat. The water vapor is discharged through the water vapor net 22. The dried fuel enters the auger 11 through the folding cylinder 25. The opening and closing of the folding cylinder 25 are adjusted by the push stator part. Combining the linkage of the rotary pulling part and the inserting and dredging part, using the rotation and disturbance of the arc cone plate 49, the elastic expansion and contraction of the rubber band 48, and the drive of the electric rod 45, the blockage between the material receiving hopper 12 and the spiral tube 19 is dredged in real time to ensure the continuity of feeding. The design of the steaming part supports the online drying of wet fuel, solving the problem of insufficient combustion caused by high fuel humidity in rainy weather, significantly enhancing the fuel applicability. The dredging part realizes automatic blockage dredging through mechanical linkage and intelligent control (such as the water level sensor 15 and the electric rod 45), reducing the frequency of manual intervention and ensuring continuous production.

[0049] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving biomass boiler combustion equipment, comprising a combustion furnace and a bellows connected to one side of the combustion furnace, the combustion furnace is provided with a furnace cover, a heat insulation tile is fixed in the combustion furnace, a combustion chamber is provided in the heat insulation tile, an auger is connected to the furnace cover, the input end of the auger is connected to a receiving hopper, a burner is connected to the other side of the combustion furnace, and the burner is connected to the combustion chamber, characterized in that: Also includes: The heat benefit part includes a heat collecting part and a steam part. The heat collecting part is arranged outside the combustion chamber. The steam part is connected to the heat collecting part and passes through the furnace cover. The heat collecting part includes a heat exchange tube arranged in a serpentine shape outside the combustion chamber, a water level sensor for monitoring the water level of the heat exchange tube and a solenoid valve for controlling the water flow input. The steam part includes a steam pipe connected to the heat exchange tube to recover the waste heat of combustion to generate steam. The steaming part includes an injection part and a steam conveying part, the injection part is arranged in the receiving hopper, the steam conveying part is arranged on one side of the injection part, and penetrates the receiving hopper and is connected with the steam conveying part, the injection part includes a spiral tube, an inner liner and a folding cylinder in the receiving hopper, and the steam conveying part includes an L tube connected to the steam pipe to use steam to dry the biomass fuel particles; The blockage clearing part comprises a rotatable rotating ring, an arc cone plate penetrating the rotating ring and an electric rod driving the arc cone plate to move, so as to clear the fuel blockage.

2. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 1 is characterized in that: The heat collecting member comprises: A cavity is provided between the heat-insulating tile and the combustion chamber; The heat exchange tube is arranged in the cavity and is arranged in a serpentine shape outside the combustion chamber and fits with the combustion chamber; There are two water level sensors, which are arranged through the heat exchange tube; One of the water level sensors is close to the input end of the heat exchange tube, and the other water level sensor is close to the output end of the heat exchange tube; The solenoid valve is fixed at the input end of the heat exchange tube.

3. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 2 is characterized in that: The steam element comprises: A steam pipe is arranged to penetrate the furnace cover, and one end of the steam pipe is connected to the heat exchange pipe; An electrically controlled three-way valve is connected to the other end of the steam pipe; The output ends of the electric-controlled three-way valve and the heat exchange tube are respectively connected with flanges.

4. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 1 is characterized in that: The injection molding comprises: The spiral tube is fixed to the inner side of the receiving hopper through a fixing component; Enter the hopper and fix it at one end of the spiral tube; The inner liner is arranged inside the spiral tube, with both ends of the inner liner covered by the spiral tube, having the same shape as the spiral tube and being integrally formed with the spiral tube; A folding cylinder, one end of which is fixed to the other end of the spiral tube and is connected to the output end of the feed hopper; The adjusting part is movably arranged on one side of the receiving hopper and is connected with the folding cylinder.

5. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 4 is characterized in that: The adjusting parts include: A limiting plate is fixed on the outside of the spiral tube; A pull plate is fixed on the outside of the folding cylinder and close to the bottom end of the folding cylinder; A pull rope movably passes through the receiving hopper and the limit plate, and one end of the pull rope is fixedly connected to the pull plate; An elastic cord, one end of which is fixedly connected to the other end of the pull rope; The stator part is connected to the other end of the elastic rope.

6. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 5 is characterized in that: The steam transport component comprises: The water vapor net is set through the spiral tube and the side of the inner tank away from the auger; L tube, one end of which is fixedly connected to the other end of the steam pipe through a connecting component, and the other end of which passes through the receiving hopper and is connected to the spiral tube; Cotton sleeve, installed on the outside of the L tube; A space is provided between the inner container and the spiral tube for steam to flow.

7. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 5 is characterized in that: The inferred sub-parts include: The ring is sleeved on the outside of the cotton sleeve and fixedly connected to the other end of the elastic rope; The loop line is carved on the outside of the cotton sleeve and is located on one side of the sleeve; A ring groove is provided on the inner side of the collar; A spring is arranged in the ring groove, and one end of the spring is fixedly connected to the collar; The friction block is fixedly connected to the other end of the spring and has an arc and fits with the cotton sleeve.

8. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 7 is characterized in that: The dredging part includes a rotary pull member and a dredging member, wherein the rotary pull member is rotatably arranged outside the spiral tube and connected to the injection member, and the dredging member is arranged through the rotary pull member and connected to the spiral tube, and the rotary pull member includes: The square plate is fixed on the outside of the spiral tube, has a square inside and a round outside, and is close to the folding tube; Bearing, fixed on the outside of the square plate; A swivel ring, connected to the outside of the bearing; There are multiple through holes, which are evenly opened throughout the rotating ring; The parts are pulled and moved, and moveably penetrate the receiving hopper and are connected with the injection parts.

9. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 8 is characterized in that: The pulling part comprises: There are two T-rods, which are fixed above the rotating ring and on one side of the collar respectively; The rocker arm is movable through the hopper, and the two ends are rotatably connected to the two T-bars respectively; A guide groove is provided through the receiving hopper; A guide plate is sleeved on the outside of the rocker and is connected to the guide groove for movement and guidance; The elastic membranes are provided with two elastic membranes, which are symmetrically arranged on the inner side of the guide groove, and one end of the elastic membranes is fixedly connected to the receiving hopper, and the other end of the elastic membranes is fixedly connected to the guide plate.

10. The high-efficiency and energy-saving biomass boiler combustion equipment according to claim 9 is characterized in that: The inserting piece comprises: The switch is fixedly arranged through the limit plate and is located above the pull plate; The electric rod is fixedly connected to the outer side of the spiral tube through a connecting component; A semi-ring rod is arranged above the rotating ring, and one end of the semi-ring rod is welded to the telescopic end of the electric rod through a connecting component; The rubber band has a plurality of rubber bands, one end of which is fixedly connected to the semi-ring rod; There are multiple arc cone plates, which are respectively fixed to the other ends of the multiple rubber bands, one end of which is sharp, and the sharp end movably passes through the rotating ring; The pressure plate is fixed on the outside of the arc cone plate, close to the top of the arc cone plate, and in contact with the semi-ring rod.

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