Straw field carbonization device
Through the self-priming low-oxygen carbonization principle and negative pressure effect straw field carbonization device, the problems of large-scale equipment and environmental pollution are solved, and simple and environmentally friendly straw carbonization is achieved.
Patent Information
- Application Number
- CN202421467926.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing straw carbonization return equipment is large and difficult to use in dispersed crop planting areas, which has high costs and environmental pollution problems.
The principle of self-priming low-oxygen carbonization is adopted, and oxygen is provided by the negative pressure effect generated by the chimney, and the pyrolysis gas is discharged through the fish scale holes to achieve environmentally friendly treatment of the carbonization process.
It realizes distributed carbonization in the field, simplifies operations, reduces costs, and reduces environmental pollution, and is suitable for large-scale promotion of complex terrains.
Smart Images
Figure CN223150509U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biomass carbonization, in particular to a straw field carbonization device. Background Art
[0002] In China, the distribution area of crop planting is relatively wide. Especially in the mountainous areas of the south, the planting areas of individual households are relatively scattered, and large-scale equipment is difficult to use. The straw carbonization and returning technology adopted is mostly the off-site returning technology of "field leaving - carbonization - returning", which not only has many operation processes and many field operation times, but also has problems such as straw collection and storage, carbonization transportation cost and equipment configuration. At present, there are many studies on straw carbonization and returning equipment. In order to simplify the carbonization device and reduce costs, the pyrolysis gas generated by carbonization is not treated and is mostly directly discharged into the air, causing certain pollution to the environment. Therefore, further research is needed on a carbonization and returning device with simple structure, low input cost, easy processing, easy to carry, simple operation and environmental protection and no pollution. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a straw field carbonization device to solve the problems existing in the above-mentioned prior art, with simple operation and capable of reducing environmental pollution.
[0004] To achieve the above purpose, the utility model provides the following scheme:
[0005] The utility model provides a straw field carbonization device, which includes a frustum-shaped combustion furnace body and a chimney arranged above the combustion furnace body and communicated with the combustion furnace body. Scaled holes opening downward are arranged on the side wall of the combustion furnace body and on the side wall of the chimney near the end connected to the combustion furnace body.
[0006] Preferably, an inner sleeve is suspended inside the chimney, and the inner sleeve is communicated with the combustion furnace body.
[0007] Preferably, a plurality of connecting ropes are fixedly arranged on the inner wall of the chimney, and one end of the connecting rope far away from the chimney is fixedly connected with the inner sleeve.
[0008] Preferably, the connecting rope is a steel wire.
[0009] Preferably, a hopper is fixedly arranged at one end of the inner sleeve far away from the combustion furnace body.
[0010] Preferably, the upper end face diameter of the combustion furnace body is 15 cm, and the lower end face diameter is 30 cm.
[0011] Preferably, the diameter of the chimney is 15 cm and the height is 100 cm.
[0012] Preferably, the diameter of the inner sleeve is 8 cm and the height is 120 cm.
[0013] The utility model has achieved the following technical effects compared with the prior art:
[0014] The straw field carbonization device provided by the utility model adopts the principle of self - suction low - oxygen carbonization. During use, an ignition material is ignited at the bottom of the chimney, and the combustion furnace body is buried with materials. Utilizing the negative pressure effect generated by the chimney, air is attracted to flow from the periphery of the material pile to the inside to provide oxygen for combustion. The material layer near the chimney undergoes a carbonization reaction at high temperature. At this time, the outer wall temperature of the lower end of the chimney and the outer wall of the combustion furnace body reaches the carbonization pyrolysis temperature, and the material temperature is transmitted from the inside to the outside, making the carbonization process continue from the inside to the outside. The operation process is simple. The pyrolysis gas generated during the carbonization process enters the chimney through the fish - scale holes provided on the combustion furnace body and the chimney. There is raw material combustion inside the combustion furnace body. On the one hand, it provides heat source for the outer materials, and on the other hand, it fully combusts the pyrolysis gas, so that the pyrolysis gas is cleaned and then discharged into the air through the chimney, reducing the pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0016] Figure 1 It is a schematic structural diagram of the straw field carbonization device provided by the present utility model;
[0017] Figure 2 It is a schematic structural diagram of the combustion furnace body provided by the present utility model;
[0018] In the figure: 1 - combustion furnace body; 2 - chimney; 3 - inner sleeve; 4 - hopper; 5 - steel wire; 6 - fish - scale hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0020] The purpose of the present utility model is to provide a straw field carbonization device to solve the problems existing in the prior art, with simple operation and the ability to reduce environmental pollution.
[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] The present utility model provides a straw field carbonization device. As Figure 1 shown, in this embodiment, it includes a frustum-shaped combustion furnace body 1 and a chimney 2 disposed above the combustion furnace body 1 and communicating with the combustion furnace body 1. Scaled holes 6 opening downward are provided on the side wall of the combustion furnace body 1 and on the side wall of the chimney 2 at a position 20 cm close to the combustion furnace body 1. The scaled holes 6 can facilitate the discharge of carbonization pyrolysis gas into the chimney 2 and prevent the straw from blocking the pores.
[0023] In one embodiment, an inner sleeve 3 is suspended inside the chimney 2. The inner sleeve 3 communicates with the combustion furnace body 1. Through the inner sleeve 3, materials can be added to the combustion furnace body 1, and the pyrolysis gas generated during the carbonization process can be discharged from the gap between the chimney 2 and the inner sleeve 3.
[0024] In one embodiment, a plurality of connecting ropes are fixedly provided on the inner wall of the chimney 2. The end of the connecting rope far from the chimney 2 is fixedly connected to the inner sleeve 3, and the inner sleeve 3 is fixed at the central position of the chimney 2 through the connecting ropes.
[0025] Further, the connecting rope is a steel wire 5 to ensure that the inner sleeve 3 can still be normally fixed in a high-temperature environment.
[0026] In one embodiment, a hopper 4 is fixedly provided at the end of the inner sleeve 3 far from the combustion furnace body 1. Through the hopper 4, it is convenient to add materials into the inner sleeve 3, and the hopper 4 is preferably frustum-shaped.
[0027] In one embodiment, the upper end face diameter of the combustion furnace body 1 is 15 cm, and the lower end face diameter is 30 cm.
[0028] Further, the diameter of the chimney 2 is 15 cm, and the height is 100 cm.
[0029] Further, the diameter of the inner sleeve 3 is 8 cm. The distance between the outer wall of the inner sleeve 3 and the inner wall of the chimney 2 is preferably 3.5 cm. The height of the inner sleeve 3 is 120 cm. The height position of the inner sleeve 3 inside the chimney 2 is preferably such that the distance between the bottom end face of the hopper 4 and the top end face of the chimney 2 is 15 cm.
[0030] The straw field carbonization device provided by the utility model adopts the principle of self - suction low - oxygen carbonization. When in use, an ignition material is ignited at the bottom of the chimney 2, and the combustion furnace body 1 is buried with materials. Utilizing the negative pressure effect generated by the chimney 2, air is attracted to flow from the periphery of the material pile to the inside to provide oxygen for combustion. The material layer near the chimney 2 undergoes a carbonization reaction at high temperature. At this time, the outer wall temperature of the lower end of the chimney 2 and the outer wall of the combustion furnace body 1 reach the carbonization pyrolysis temperature, and the material temperature is transmitted from the inside to the outside, making the carbonization process continue from the inside to the outside. This process requires continuous stirring to prevent the material with complete carbonization in the innermost layer from becoming ash, and finally complete carbonization is achieved.
[0031] The pyrolysis gas generated during the carbonization process enters the chimney 2 through the fish - scale holes 6 provided on the combustion furnace body 1 and the chimney 2. Part of the material is conveyed into the interior of the combustion furnace through the hopper 4 to make it burn. During the carbonization process, it is necessary to ensure that there is raw material burning inside the combustion furnace body 1. On the one hand, it provides heat source for the external materials, and on the other hand, it fully burns the pyrolysis gas, so that the pyrolysis gas is discharged into the air after being cleaned through the gap between the inner sleeve 3 and the chimney 2.
[0032] The straw field carbonization device provided by the utility model can achieve distributed carbonization in the field, without external energy and other power consumption, can carbonize in situ in the field, has a simple equipment structure, simple operation, low cost, is environmentally friendly and pollution - free, and can be widely promoted in large areas in complex terrain areas.
[0033] In one specific embodiment, when the straw field carbonization device is in use, in the field, first, combustibles are ignited inside the combustion furnace body 1 to provide an initial heat source for the carbonization process. Immediately, rice husks or straw are used to bury the combustion furnace body 1 to ensure a negative pressure state inside the combustion furnace body 1, ensuring that air enters from the outer layer of the material pile into the inner layer, so that the pyrolysis gas enters the chimney 2 through the fish - scale holes 6. The material pile is stirred every 3 - 5 minutes until the material pile is completely carbonized. Mix the innermost carbonized material layer with the outer - layer materials, preventing the increase of ash due to too long carbonization time, and on the other hand, preventing the outer - layer materials from catching fire and self - igniting due to too high temperature.
[0034] While stirring, materials should also be put into the hopper 4 to ensure continuous open - flame combustion inside the combustion furnace body 1, providing a heat source for carbonization on the one hand and fully burning the pyrolysis gas with the open - flame on the other hand to reduce environmental pollution.
[0035] Specific examples are applied in the utility model to elaborate on the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be construed as a limitation to the utility model.
Claims
1. A straw field carbonization device, characterized in that: It includes a frustum-shaped combustion furnace body and a chimney arranged above the combustion furnace body and communicating with the combustion furnace body. Scaled holes with downward openings are provided on the side wall of the combustion furnace body and on the side wall of the chimney near one end of the combustion furnace body.
2. The straw field carbonization device according to claim 1, characterized in that: An inner sleeve is suspended inside the chimney, and the inner sleeve communicates with the combustion furnace body.
3. The straw field carbonization device according to claim 2, characterized in that: A plurality of connecting ropes are fixedly arranged on the inner wall of the chimney, and one end of the connecting rope far from the chimney is fixedly connected with the inner sleeve.
4. A straw field carbonization device according to claim 3, characterized in that: The connecting rope is made of steel wire.
5. The straw field carbonization device according to claim 2, characterized in that: A hopper is fixedly arranged at one end of the inner sleeve far from the combustion furnace body.
6. The straw field carbonization device according to claim 2, characterized in that: The diameter of the upper end face of the combustion furnace body is 15 cm, and the diameter of the lower end face is 30 cm.
7. The straw field carbonization device according to claim 6, characterized in that: The diameter of the chimney is 15 cm, and the height is 100 cm.
8. The straw field carbonization device according to claim 7, characterized in that: The diameter of the inner sleeve is 8 cm, and the height is 120 cm.