Interface device of biomass boiler feeder
By utilizing the interface device of the biomass boiler feeder, and employing the hinged structure and locking mechanism of the connecting pipe and plug pipe, the problem of inflexible connection between the feeder outlet and the boiler inlet is solved, achieving stable connection and preventing backfire, thus improving connection efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-03-31
AI Technical Summary
The existing biomass boiler feeder's discharge port and boiler feed port cannot be arbitrarily switched according to different scenarios, resulting in cumbersome connection operations, reduced efficiency, and inability to effectively prevent backfire.
An interface device for a biomass boiler feeder was designed. Through the hinged structure of the connecting pipe and the plug pipe, combined with the locking mechanism and the adjusting mechanism, the plug pipe can be flexibly connected to the feeder outlet and the boiler inlet. The locking mechanism maintains the connection and prevents backfire.
Stable connection between the feeder outlet and the boiler inlet is achieved at different tilt angles, avoiding backfire and improving connection efficiency and safety.
Smart Images

Figure CN224065517U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of connecting biomass boilers and feeders, specifically an interface device for a biomass boiler feeder. Background Technology
[0002] A biomass boiler feeder is a mechanical device that transports biomass fuel (such as straw, sawdust, etc.) from a silo to the boiler furnace. Its working principle is based on the rotation of spiral blades, which pushes the material forward along the spiral grooves to achieve continuous and stable conveying.
[0003] Currently, biomass fuels have high volatile content and low ignition points, making them prone to combustion at the feed inlet and thus causing backfire. To address this issue, boiler feed inlets are typically designed vertically upwards or inclined upwards to reduce the likelihood of fuel mixing with air to form a combustible mixture, thereby lowering the risk of backfire. The feeder output is usually designed with an inverted V-shaped structure, which effectively prevents fuel from flowing back from the hopper to the feed inlet, further avoiding backfire. In addition, this design also helps ensure even fuel distribution, reducing localized accumulation and coking problems.
[0004] When the existing feeder outlet is connected to the boiler inlet, the connection method cannot be arbitrarily changed according to different scenarios. This makes the interface operation between the feeder outlet and the boiler inlet with different structures cumbersome, resulting in reduced efficiency of the connection between the feeder outlet and the boiler inlet. Utility Model Content
[0005] The purpose of this utility model is to provide an interface device for a biomass boiler feeder to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An interface device for a biomass boiler feeder includes a connecting pipe with insert pipes hinged to both ends of the connecting pipe. One of the insert pipes is connected to the feed end of the biomass boiler, and the other insert pipe is connected to the discharge end of the feeder. Both ends of the connecting pipe are connected to the insert pipes via flexible hoses.
[0008] A locking mechanism is provided at the hinge position between the connecting pipe and the insertion pipe, which can lock the adjustment mechanism installed on the insertion pipe.
[0009] The interface device of the biomass boiler feeder as described above: a first connecting plate is symmetrically arranged at both ends of the connecting pipe, and a hinge seat is symmetrically arranged on the first connecting plate.
[0010] The interface device of the biomass boiler feeder as described above: the adjustment mechanism includes a deflection shaft rotatably mounted on the hinge seat, the deflection shaft being fixed to a second connecting plate mounted at the end of the insertion pipe, and a plurality of locking grooves being evenly distributed along the circumference on the deflection shaft.
[0011] The interface device of the biomass boiler feeder as described above: a receiving plate is provided on the hinge seat along the axial direction of the deflection shaft, and a bevel gear ring capable of controlling multiple locking mechanisms to lock the deflection shaft is rotatably mounted on the receiving plate.
[0012] The interface device of the biomass boiler feeder as described above: the locking mechanism includes a lead screw that rotates around the circumference of the receiving plate, a bevel gear that meshes with the bevel gear ring is fixedly provided on the lead screw, and a threaded sleeve that is slidably connected to the receiving plate is threaded to the end of the lead screw away from the bevel gear.
[0013] It also includes an elastic telescopic member disposed on the threaded sleeve and capable of being inserted into the locking groove.
[0014] The interface device of the biomass boiler feeder as described above: the elastic telescopic component includes a rod, one end of which is inserted into the slot formed by the threaded sleeve, and a ball is rolled on the end of the rod away from the threaded sleeve, and the rod and the ball can be inserted into the locking groove;
[0015] It also includes a spring disposed in the slot, one end of the spring abutting against the inner end of the slot, and the other end abutting against the insertion rod.
[0016] The interface device of the biomass boiler feeder as described above: a support hoop is fixedly installed on the threaded sleeve, and the support hoop is slidably connected to a sliding groove arranged radially along the receiving plate.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] After the locking mechanism is manually controlled to lock the adjusting mechanism, the adjusting mechanism is driven to deflect, so that the insertion pipe can connect with the feeder outlet or the biomass boiler inlet. After the connection is completed, the locking mechanism is controlled to lock the adjusting mechanism again. When the insertion pipe deflects relative to the connecting pipe, the insertion pipe and the connecting pipe always remain connected. This can meet the connection between the feeder outlet and the biomass boiler inlet at different tilt angles, while effectively preventing backfire. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the interface device of a biomass boiler feeder.
[0020] Figure 2 This is a schematic diagram of the connecting pipe and insertion pipe in the interface device of a biomass boiler feeder.
[0021] Figure 3 This is a schematic diagram of the connecting pipe and hose in the interface device of a biomass boiler feeder.
[0022] Figure 4 This is a schematic diagram of the structure of the first connecting plate and the hinge seat in the interface device of the biomass boiler feeder.
[0023] Figure 5 This is a schematic diagram of the adjusting mechanism and locking mechanism in the interface device of a biomass boiler feeder.
[0024] Figure 6 This is a schematic diagram of the bevel gear ring and locking mechanism in the interface device of a biomass boiler feeder.
[0025] Figure 7 This is a schematic diagram of the threaded sleeve and elastic expansion joint in the interface device of a biomass boiler feeder.
[0026] In the diagram: 1. Connecting pipe; 101. First connecting plate; 102. Hinge seat; 2. Flexible hose; 3. Insertion pipe; 301. Second connecting plate; 4. Bevel gear ring; 5. Deflection shaft; 501. Knob; 502. Locking groove; 6. Receiving plate; 601. Slide groove; 7. Bevel gear; 8. Lead screw; 9. Support clamp; 10. Threaded sleeve; 1001. Slot; 11. Spring; 12. Insert rod; 1201. Ball bearing. Detailed Implementation
[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0028] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0030] Please see Figures 1-7In this embodiment of the utility model, an interface device for a biomass boiler feeder includes a connecting pipe 1, with insertion pipes 3 hinged to both ends of the connecting pipe 1. One insertion pipe 3 is connected to the feed end of the biomass boiler, and the other insertion pipe 3 is connected to the discharge end of the feeder. Both ends of the connecting pipe 1 are connected to the insertion pipe 3 via flexible hoses 2.
[0031] A locking mechanism is provided at the hinge position between the connecting pipe 1 and the insertion pipe 3, which can lock the adjustment mechanism installed on the insertion pipe 3.
[0032] In detail, when the feeder is connected to the biomass boiler, the locking mechanism is manually controlled to lock the regulating mechanism, which then drives the regulating mechanism to deflect, allowing the connector 3 to connect with the feeder's outlet or the biomass boiler's inlet. After the connection is completed, the locking mechanism is controlled to lock the regulating mechanism again, thus achieving stable biomass fuel delivery between the feeder and the biomass boiler while also allowing for connection between the feeder's outlet and the biomass boiler's inlet at different inclinations.
[0033] Preferably, the two ends of the connecting pipe 1 are respectively provided with a first connecting plate 101, and the first connecting plate 101 is provided with a hinge seat 102.
[0034] For further solutions to this utility model, please refer to [link / reference]. Figure 5 The adjustment mechanism includes a deflection shaft 5 rotatably mounted on the hinge seat 102. The deflection shaft 5 is fixed to a second connecting plate 301 mounted at the end of the insertion tube 3, and a plurality of locking grooves 502 are equidistantly distributed along the circumference of the deflection shaft 5.
[0035] A receiving plate 6 is provided on the hinge seat 102 along the axial direction of the deflection shaft 5, and a bevel tooth ring 4 capable of controlling multiple locking mechanisms to lock the deflection shaft 5 is rotatably mounted on the receiving plate 6.
[0036] For further solutions to this utility model, please refer to [link / reference]. Figure 6 and Figure 7 The locking mechanism includes a lead screw 8 that rotates around the circumference of the receiving plate 6, a bevel gear 7 that meshes with the bevel ring 4 fixedly mounted on the lead screw 8, and a threaded sleeve 10 that is slidably connected to the receiving plate 6 at the end of the lead screw 8 away from the bevel gear 7.
[0037] It also includes an elastic telescopic member disposed on the threaded sleeve 10 and capable of being inserted into the locking groove 502.
[0038] Preferably, a support hoop 9 is fixedly installed on the threaded sleeve 10, and the support hoop 9 is slidably connected to a sliding groove 601 arranged radially along the receiving plate 6.
[0039] The elastic telescopic component includes a rod 12, one end of which is inserted into the slot 1001 formed by the threaded sleeve 10, and a ball bearing 1201 is rolled on the end of the rod 12 away from the threaded sleeve 10. The rod 12 and the ball bearing 1201 can be inserted into the locking groove 502.
[0040] It also includes a spring 11, which is disposed in the slot 1001. One end of the spring 11 abuts against the inner end of the slot 1001, and the other end abuts against the insertion rod 12.
[0041] Preferably, a knob 501 is provided on the deflection shaft 5 for easy manual rotation.
[0042] Specifically, to release the locking state of the deflection shaft 5, the bevel ring 4 is manually driven to rotate relative to the receiving plate 6. When the bevel ring 4 rotates, the meshing transmission between the bevel ring 4 and the bevel gear 7 causes multiple lead screws 8 to rotate synchronously. At this time, under the cooperation and restriction of the support hoop 9 and the slide groove 601, the threaded sleeve 10 is driven to move linearly along the axial direction of the lead screw 8, and at the same time moves radially along the receiving plate 6. When the threaded sleeve 10 moves, it causes the insertion rod 12 to disengage from the locking groove 502. At this time, the ball 1201 is still inserted in the locking groove 502. After stopping the drive of the bevel ring 4, the deflection shaft 5 can be controlled to rotate relative to the connecting pipe 1 by hand-held knob 501, so that the inclination angle between the insertion pipe 3 and the connecting pipe 1 changes. Under the action of the hose 2, even when the insertion pipe 3 deflects relative to the connecting pipe 1, the insertion pipe 3 and the connecting pipe 1 always remain in a connected state. This can meet the connection between the feeder outlet and the biomass boiler inlet at different inclination angles, while effectively preventing backfire.
[0043] It should be noted that: in the locked state, the spring 11 is in a compressed state. At this time, the spring 11 exerts a squeezing force on the insert rod 12 to move towards the locking groove 502. The purpose of using the spring 11 is to limit the angle of each rotation of the deflection shaft 5 after the insert rod 12 is disengaged from the locking groove 502, so as to realize the connection between the insert pipe 3 and the feeder outlet and the biomass boiler inlet.
[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An interface device for a biomass boiler feeder, Characterized in that The connecting pipe (1) is hingedly connected with the plug-in pipe (3) at both ends, one of the plug-in pipes (3) is communicated with the feeding end of the biomass boiler, the other plug-in pipe (3) is communicated with the discharging end of the feeder, and the two ends of the connecting pipe (1) are communicated with the plug-in pipe (3) through the hose (2). The hinged position of the connecting pipe (1) and the plug-in pipe (3) is provided with a locking mechanism, which can lock the adjusting mechanism installed on the plug-in pipe (3).
2. An interface device for a biomass boiler feedstock machine according to claim 1, wherein, The two ends of the connecting pipe (1) are respectively provided with a first connecting plate (101) symmetrically, and the first connecting plate (101) is provided with a hinged seat (102) symmetrically.
3. An interface device for a biomass boiler feedstock machine according to claim 2, wherein, The adjusting mechanism comprises a deflection shaft (5) rotatably arranged on the hinged seat (102), the deflection shaft (5) is fixed with a second connecting plate (301) arranged at the end of the plug-in pipe (3), and a plurality of lock grooves (502) are distributed equidistantly on the deflection shaft (5) along the circumference.
4. An interface apparatus for a biomass boiler feedstock machine according to claim 3, wherein, The hinged seat (102) is provided with a receiving disc (6) along the axial direction of the deflection shaft (5), and the receiving disc (6) is rotatably provided with a bevel gear ring (4) capable of controlling the locking of the deflection shaft (5) by the plurality of locking mechanisms.
5. An interface apparatus for a biomass boiler feedstock machine according to claim 4, wherein, The locking mechanism comprises a lead screw (8) rotatably arranged along the circumference of the receiving disc (6), the lead screw (8) is fixedly provided with a bevel gear (7) engaged with the bevel gear ring (4), and the end of the lead screw (8) away from the bevel gear (7) is threadedly connected with a threaded sleeve (10) slidingly connected with the receiving disc (6). It also includes an elastic expansion piece arranged on the threaded sleeve (10) and capable of being inserted into the lock groove (502).
6. An interface apparatus for a biomass boiler feedstock machine according to claim 5, wherein, The elastic expansion piece comprises a plug rod (12), one end of the plug rod (12) is inserted into the insertion groove (1001) formed in the threaded sleeve (10), the end of the plug rod (12) away from the threaded sleeve (10) is rotatably provided with a ball (1201), and the plug rod (12) and the ball (1201) can be inserted into the lock groove (502). It also includes a spring (11), the spring (11) is arranged in the insertion groove (1001), one end of the spring (11) abuts against the inner end of the insertion groove (1001), and the other end abuts against the plug rod (12).
7. An interface apparatus for a biomass boiler feedstock machine according to claim 5, wherein, The threaded sleeve (10) is fixedly provided with a supporting hoop (9), and the supporting hoop (9) is slidingly connected with a sliding groove (601) arranged along the radial direction of the receiving disc (6).