Straw incineration boiler
By using broken bales to unbundle the bales in the straw burning boiler, the problem of low straw burning efficiency in the prior art is solved, and the full combustion of straw and the effective recycling and reuse of energy are achieved.
Patent Information
- Application Number
- CN202421293910.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The existing straw burning furnace is inexpensive when burning bundles of straw, resulting in the inability to burn the inner straw to be sufficiently burned, which easily causes the furnace to be coking, and the energy recovery and reuse cannot be effectively achieved, resulting in a large amount of smoke.
A straw burning boiler is designed, and multiple broken bale elements are arranged in sequence inside the furnace body. The broken bale elements are driven to unbundle the bale elements through the driving element and the transmission element to ensure that the straw is fully in contact with the flame and is effectively burned.
The combustion efficiency of straw is improved, the problem of insufficient burning of straw is avoided, the service life of the boiler is extended, and the full combustion of straw and the effective recycling and reuse of energy is achieved.
Smart Images
Figure CN222864938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boilers, in particular to a straw burning boiler. Background Art
[0002] In recent years, crop straw has become a new source of non-point pollution in rural areas. Every summer harvest and autumn and winter, a large amount of wheat, corn and other straw is burned in the fields, producing a lot of thick smoke, which has not only become a bottleneck problem for rural environmental protection, but also the culprit for the harm to the urban environment. In this case, if the crop straw is completely handled directly by farmers, a large amount of burning will occur.
[0003] Although in recent years, incinerators have been used to burn straw to achieve energy recycling, but because straw is often in bundles during transportation, if the bundles of straw are burned directly, it is easy to lead to low combustion efficiency, and the inner layer of straw cannot be fully burned. Over time, it is easy to cause coking in the furnace, thereby failing to achieve continuous and effective operation of the incinerator, and failing to effectively achieve energy recovery and reuse, and generating a lot of smoke. Utility Model Content
[0004] The utility model aims to provide a straw burning boiler to solve the problems existing in the above-mentioned prior art, so as to make the straw be fully burned and improve the combustion efficiency.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a straw burning boiler, comprising a furnace body, a driving element, a transmission element and a plurality of bale-breaking elements, one end of the furnace body is used for bundles of straw to enter, the driving element and the transmission element are both located outside the furnace body, a plurality of bale-breaking elements are arranged in sequence and are all installed inside the furnace body, the driving element is connected to the transmission element, the output shaft of the transmission element passes through the side wall of the furnace body and is connected to each of the bale-breaking elements, the driving element can drive the transmission element to move, and the transmission element drives each of the bale-breaking elements to break the bundles of straw, in the moving direction of the bundles of straw, the height of each of the bale-breaking elements gradually decreases, and a cooling medium is provided inside the bale-breaking element.
[0007] Preferably, it also includes an opening and closing element and a controller, the feed port of the furnace body is provided with an opening and closing door, one side of the opening and closing door is hinged on the side wall of the furnace body, the output shaft of the opening and closing element is movably connected to the opening and closing door, and can drive the opening and closing door to rotate to block the feed port of the furnace body, the opening and closing element is electrically connected to the controller, and the controller is used to control the action of the opening and closing element.
[0008] Preferably, a pushing element is provided outside the feed inlet of the furnace body, and the pushing element is used to push the bundled straw into the feed inlet of the furnace body.
[0009] Preferably, the inner cavity of the furnace body is divided into a drying cavity and a combustion cavity, the drying cavity is arranged close to the feed port of the furnace body, and each of the bundle breaking elements is installed in the combustion cavity.
[0010] Preferably, a grate is provided at the bottom of the furnace body, and the grate can drive bundles of straw to move from the drying chamber to the combustion chamber.
[0011] Preferably, the driving element is a driving motor, and the transmission element includes a reducer, an eccentric wheel, a swing link and an output link. The output shaft of the driving motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the eccentric wheel and can drive the eccentric wheel to rotate. The protrusion of the eccentric wheel is hinged to one end of the swing link, and the other end of the swing link is hinged to one end of the output link. One end of each of the bundle breaking elements is hinged to a different position in the length direction of the output link, and each of the bundle breaking elements can reciprocate driven by the output link.
[0012] Preferably, the bundle breaking element includes a lever, a swing shaft and a plurality of teeth, the lower end of the lever is hinged on the outer wall of the output connecting rod, the upper end of the lever is connected to one end of the swing shaft, the other end of the swing shaft is rotatably connected to the side wall of the furnace body, one end of the tooth is mounted on the swing shaft, and a plurality of teeth are evenly arranged along the length direction of the swing shaft. In an initial state, the tooth is located at the lower end of the swing shaft, and the tooth is parallel to the vertical direction.
[0013] Preferably, a group of spiral blades are fixedly installed in the swing shaft, and the swing shaft is used to pass the cooling medium, and the two ends of the swing shaft are respectively connected to the inlet pipe and the outlet pipe for the circulation of the cooling medium.
[0014] Preferably, the cooling medium is air, and a plurality of exhaust holes for exhausting air are provided on the side wall of the swing shaft.
[0015] Preferably, the cooling medium is water.
[0016] Compared with the prior art, the utility model has achieved the following technical effects:
[0017] The straw burning boiler provided by the utility model has one end of the furnace body for straw bundles to enter so as to burn the straw bundles in the furnace body in a centralized manner, the driving element and the transmission element are both located outside the furnace body, and a plurality of bale breaking elements are arranged in sequence and are all installed inside the furnace body so as to open the straw bundles through the bale breaking elements, which is conducive to the full combustion of the straw and avoids the straw located inside from being unable to directly contact the flame and thus being insufficiently and incompletely burned, the driving element is connected to the transmission element, the output shaft of the transmission element passes through the side wall of the furnace body and is connected to each bale breaking element, and the driving element can drive the transmission element The components move, and the transmission components drive the bale-breaking components to break the bundles of straw, which can then drive the bale-breaking components to rotate to lift the straw, so that the straw inside can also come into contact with the flame and burn effectively. In the moving direction of the straw bundles, the height of each bale-breaking component gradually decreases, and the gradient arrangement can open the bundles layer by layer. Only a small power is needed to break the bundles. At the same time, it also ensures that the straw bundles are fully burned from the outside to the inside. A cooling medium is provided inside the bale-breaking component, which can cool the bale-breaking component in a high temperature environment and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic diagram of the external structure of the straw burning boiler provided by the utility model;
[0020] Figure 2 This is a schematic diagram of the installation position of the bundle breaking element in the utility model;
[0021] Figure 3 It is a structural schematic diagram of the swing shaft in the utility model;
[0022] Figure 4 This is a schematic diagram of the installation position of the air supply duct in the utility model;
[0023] In the figure: 1-furnace body, 2-eccentric wheel, 3-swing connecting rod, 4-output connecting rod, 5-shift rod, 6-pushing element, 7-swing shaft, 8-shift teeth, 9-spiral sheet, 10-air supply pipe, 11-air supply hole, 12-opening and closing door. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The utility model aims to provide a straw burning boiler to solve the problems existing in the prior art, so that the straw can be fully burned and the combustion efficiency can be improved.
[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0027] like Figure 1-Figure 4 As shown, this embodiment provides a straw burning boiler, including a furnace body 1, a driving element, a transmission element and a plurality of bale breaking elements. One end of the furnace body 1 is used for the straw bundles to enter, so that the straw bundles are concentratedly burned in the furnace body 1. The driving element and the transmission element are both located outside the furnace body 1. The plurality of bale breaking elements are arranged in sequence and are all installed inside the furnace body 1. The bale breaking elements are used to open the straw bundles, which is conducive to the full combustion of the straw and avoids the straw inside from being unable to directly contact the flame and being insufficiently and incompletely burned. The driving element is connected to the transmission element, and the output shaft of the transmission element passes through the side wall of the furnace body 1 and is connected to each The bale-breaking element and the driving element can drive the transmission element to move, and make the transmission element drive each bale-breaking element to break the bales of straw, and then can drive the bale-breaking element to rotate to lift the straw, so that the straw inside can also contact the flame and burn effectively. In the moving direction of the straw bales, the height of each bale-breaking element gradually decreases, and the gradient arrangement can open the bales layer by layer. Only a small power is needed to achieve bale breaking. At the same time, it also ensures that the straw bales are fully burned from the outside to the inside. A cooling medium is provided inside the bale-breaking element, which can cool the bale-breaking element in a high temperature environment and extend its service life.
[0028] Specifically, the present embodiment further includes an opening and closing element and a controller. The feed port of the furnace body 1 is provided with an opening and closing door 12. One side of the opening and closing door 12 is hinged on the side wall of the furnace body 1. The opening and closing element is electrically connected to the controller, and the controller is used to control the action of the opening and closing element. The output shaft of the opening and closing element is movably connected to the opening and closing door 12. Before the bundled straw enters the furnace body 1, the opening and closing door 12 is in a closed state. When the bundled straw needs to be burned, the opening and closing element is controlled by the controller to drive the opening and closing door 12 to rotate and realize the opening of the opening and closing door 12. In the present embodiment, the specific structure and working principle of the opening and closing element are consistent with the prior art. As long as the opening and closing of the opening and closing door 12 can be realized, it will not be repeated here.
[0029] A pushing element 6 is provided outside the feed inlet of the furnace body 1 , and the pushing element 6 is used to push the bundled straw into the feed inlet of the furnace body 1 , thereby causing the bundled straw to burn in the furnace body 1 .
[0030] The inner cavity of the furnace body 1 is divided into a drying cavity and a combustion cavity. The drying cavity is arranged near the feed port of the furnace body 1. Each bale breaking element is installed in the combustion cavity. A grate is arranged at the bottom of the furnace body 1. The grate can drive the bundled straw to move from the drying cavity to the combustion cavity. After entering the furnace body 1, the bundled straw is first dried in the drying cavity. As the grate moves, the bundled straw is driven into the combustion cavity and is opened in sequence by each bale breaking element. At the same time, the bundled straw is burned. The operation of drying first and then burning can improve the combustion efficiency of the straw and avoid incomplete burning of the straw.
[0031] The driving element is a driving motor, and the transmission element includes a reducer, an eccentric wheel 2, a swing link 3 and an output link 4. The output shaft of the driving motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the eccentric wheel 2 and can drive the eccentric wheel 2 to rotate. The protrusion of the eccentric wheel 2 is hinged to one end of the swing link 3, and the other end of the swing link 3 is hinged to one end of the output link 4. One end of each bundle breaking element is hinged to a different position in the length direction of the output link 4, and each bundle breaking element can reciprocate under the drive of the output link 4. When the driving motor is working, the power is transmitted to the eccentric wheel 2 through the reducer, the eccentric wheel 2 rotates and drives the swing link 3 to swing, and at the same time, the swing link 3 drives the output link 4 to move back and forth. With the reciprocating movement of the output link 4, the reciprocating rotation of each bundle breaking element is realized, and continuous bag opening is realized.
[0032] As another embodiment, there may be multiple driving elements and transmission elements, which respectively drive each bundle breaking element to swing.
[0033] The bale breaking element includes a lever 5, a swing shaft 7 and a plurality of teeth 8. The lower end of the lever 5 is hinged on the outer wall of the output connecting rod 4, and the upper end of the lever 5 is connected to one end of the swing shaft 7, so that when the output connecting rod 4 swings, the lever 5 is driven to rotate back and forth, and the lever 5 drives the swing shaft 7 to rotate back and forth, and finally realizes the reciprocating rotation of the teeth 8. The other end of the swing shaft 7 is rotatably connected to the side wall of the furnace body 1 to improve the stability of the overall structure. One end of the tooth 8 is mounted on the swing shaft 7, and a plurality of teeth 8 are evenly arranged along the length direction of the swing shaft 7. The free end of the tooth 8 is hook-shaped or pointed, which can improve the efficiency of unbundling and ensure the unbundling effect. In the initial state, the tooth 8 is located at the lower end of the swing shaft 7, and the tooth 8 is parallel to the vertical direction, so that the bundled straw can be unbundled within the rotation range of the tooth 8.
[0034] A set of spiral blades 9 are fixedly installed in the swing shaft 7, and the swing shaft 7 is used to pass a cooling medium. Through the heat exchange between the cooling medium and the swing shaft 7, the swing shaft 7 is cooled, and the service life of the swing shaft 7 is extended. The two ends of the swing shaft 7 are respectively connected to the inlet pipe and the outlet pipe for the circulation of the cooling medium, so as to realize the circulation of the cooling medium and improve the cooling effect. At the same time, the setting of the spiral blades 9 can have a disturbing effect on the cooling medium in the swing shaft 7, thereby also improving the cooling effect and cooling efficiency to a certain extent.
[0035] As an embodiment, the cooling medium is air, and a plurality of exhaust holes for air discharge are provided on the side wall of the swing shaft 7, which not only realizes air cooling of the swing shaft 7, but also can supply oxygen to the burning straw through the exhaust holes, so that it burns better. At the same time, when the swing shaft 7 is used to pass air, the air inlet of the swing shaft 7 is connected to the fan, and the air outlet of the swing shaft 7 is connected to the grate at the bottom of the furnace body 1, and is used to pass the air in the swing shaft 7 into the furnace body through the grate, which plays a role in increasing oxygen.
[0036] As another embodiment, the cooling medium is water, and the swing shaft 7 is cooled by water cooling, and the cooling effect is better. At the same time, when the cooling medium is water, a plurality of air supply pipes 10 can be arranged on the side wall of the furnace body 1, and a plurality of air supply holes 11 are arranged on the side wall of the air supply pipe 10 to realize oxygen supply in the furnace body 1, so that the straw burns more fully. Those skilled in the art can also use other cooling media as long as they can meet the use requirements.
[0037] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A straw burning boiler, characterized in that: It includes a furnace body, a driving element, a transmission element and multiple bale-breaking elements. One end of the furnace body is used for bundles of straw to enter. The driving element and the transmission element are both located outside the furnace body. Multiple bale-breaking elements are arranged in sequence and are all installed inside the furnace body. The driving element is connected to the transmission element. The output shaft of the transmission element passes through the side wall of the furnace body and is connected to each bale-breaking element. The driving element can drive the transmission element to move, and the transmission element drives each bale-breaking element to break the bales of straw. In the moving direction of the bales of straw, the height of each bale-breaking element gradually decreases, and a cooling medium is provided inside the bale-breaking element.
2. The straw burning boiler according to claim 1, characterized in that: It also includes an opening and closing element and a controller. The feed port of the furnace body is provided with an opening and closing door, one side of the opening and closing door is hinged on the side wall of the furnace body, the output shaft of the opening and closing element is movably connected to the opening and closing door, and can drive the opening and closing door to rotate to block the feed port of the furnace body, the opening and closing element is electrically connected to the controller, and the controller is used to control the action of the opening and closing element.
3. The straw burning boiler according to claim 2, characterized in that: A pushing element is arranged outside the feed inlet of the furnace body, and the pushing element is used to push bundles of straw into the feed inlet of the furnace body.
4. The straw burning boiler according to claim 1, characterized in that: The inner cavity of the furnace body is divided into a drying cavity and a combustion cavity. The drying cavity is arranged close to the feed inlet of the furnace body, and each of the bundle breaking elements is installed in the combustion cavity.
5. The straw burning boiler according to claim 4, characterized in that: A grate is provided at the bottom of the furnace body, and the grate can drive bundles of straw to move from the drying chamber to the combustion chamber.
6. The straw burning boiler according to claim 1, characterized in that: The driving element is a driving motor, and the transmission element includes a reducer, an eccentric wheel, a swing link and an output link. The output shaft of the driving motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the eccentric wheel and can drive the eccentric wheel to rotate. The protrusion of the eccentric wheel is hinged to one end of the swing link, and the other end of the swing link is hinged to one end of the output link. One end of each of the bundle breaking elements is hinged to a different position in the length direction of the output link, and each of the bundle breaking elements can reciprocate driven by the output link.
7. The straw burning boiler according to claim 6, characterized in that: The bundle breaking element includes a lever, a swing shaft and a plurality of teeth, the lower end of the lever is hinged on the outer wall of the output connecting rod, the upper end of the lever is connected to one end of the swing shaft, the other end of the swing shaft is rotatably connected to the side wall of the furnace body, one end of the tooth is mounted on the swing shaft, and a plurality of teeth are evenly arranged along the length direction of the swing shaft. In an initial state, the tooth is located at the lower end of the swing shaft, and the tooth is parallel to the vertical direction.
8. The straw burning boiler according to claim 7, characterized in that: A group of spiral sheets are fixedly installed in the swing shaft, and the swing shaft is used to pass the cooling medium. The two ends of the swing shaft are respectively connected to an inlet pipe and a discharge pipe for the circulation of the cooling medium.
9. The straw burning boiler according to claim 8, characterized in that: The cooling medium is air, and a plurality of exhaust holes for exhausting air are arranged on the side wall of the swing shaft.
10. The straw burning boiler according to claim 8, characterized in that: The cooling medium is water.