Stacking rotary carbonization equipment

Abstract

The utility model relates to stacking rotary carbonization equipment which comprises a carbonization chamber, a combustion chamber and a fixed outer cylinder which is axially and obliquely arranged, the carbonization chamber is a stacking bed type carbonization furnace, and a baffle is fixedly arranged on the inner side wall of the carbonization chamber; the carbonization chamber is arranged in the fixed outer cylinder, is coaxial with the fixed outer cylinder and can rotate around a shaft; part of the fixed outer cylinder is located in the combustion chamber and fixedly connected with the combustion chamber, and the two ends of the fixed outer cylinder extend out of the combustion chamber. The stacking rotary type carbonization equipment disclosed by the utility model can be used for realizing centralized treatment on straws, and is high in treatment capacity, better in product uniformity and lower in energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of carbonization, in particular to a stacking rotary carbonization device. Background Art

[0002] Crop straw is a very important biomass energy source, and compared with other biomass, straw has many advantages. On the one hand, the yield of crop straw is huge, and the use of environmentally friendly utilization methods such as thermochemical technology to increase the value of straw into other forms of biofuel can reduce the environmental pollution caused by burning straw. On the other hand, compared with other energy crops, straw has dual characteristics: waste and resource. The use of crop straw is less likely to cause direct and indirect land use changes or other negative environmental and socio-economic impacts. On the contrary, the scientific use of crop straw has the potential to curb greenhouse gas emissions, enhance energy security, and benefit the local environment and rural economy, but will not compete with land for food production.

[0003] However, due to the low stacking density and scattered characteristics of straw, it is difficult to transport and process the straw in a centralized manner, and the high-temperature carbonization process consumes huge amounts of energy. Utility Model Content

[0004] The utility model aims to provide a stacking rotary carbonization device, which can realize the centralized processing of straw and has a large processing capacity, better product uniformity and lower energy consumption.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] The utility model provides a stacking rotary carbonization device, comprising a carbonization chamber, a combustion chamber and an axially inclined fixed outer cylinder; the carbonization chamber is a stacking bed carbonization furnace, and a baffle is fixedly arranged on the inner wall of the carbonization chamber; the carbonization chamber is arranged in the fixed outer cylinder, is coaxially arranged with the fixed outer cylinder and can rotate around the axis; part of the fixed outer cylinder is located in the combustion chamber and is fixedly connected to the combustion chamber, and both ends of the fixed outer cylinder extend out of the combustion chamber respectively.

[0007] In a preferred embodiment of the present invention, the angle between the axis of the carbonization chamber and the horizontal plane is 60-80°, and the plate surface of the baffle is parallel to the axis of the carbonization chamber.

[0008] In a preferred embodiment of the present invention, the stacking rotary carbonization equipment also includes a base, a fixed bracket, a rotating bracket and a driving device. The fixed outer cylinder is fixedly connected to the base through the fixed bracket, the first end of the rotating bracket is fixedly connected to the base, and the second end of the rotating bracket is provided with a rotatable roller. The roller can extend into the fixed outer cylinder and contact the outer wall of the carbonization chamber. The driving device is connected to the carbonization chamber and can drive the carbonization chamber to rotate.

[0009] In a preferred embodiment of the utility model, the stacking rotary carbonization equipment also includes a condensation tank and a gas storage tank, an igniter is provided in the combustion chamber, the gas storage tank is connected to the igniter through a first gas path, the carbonization chamber and the condensation tank are connected through a second gas path, the condensation tank and the gas storage tank are connected through a third gas path, and a pumping device is provided on at least one of the first gas path, the second gas path and the third gas path.

[0010] In a preferred embodiment of the utility model, a feed hopper is provided at the top of the fixed outer cylinder, the bottom of the feed hopper can extend into the fixed outer cylinder and be rotatably connected to the top of the carbonization chamber, and a feed and air inlet valve is provided at the bottom of the feed hopper.

[0011] In a preferred embodiment of the present invention, the stacking rotary carbonization equipment also includes a pelletizer for molding materials, and the materials molded by the pelletizer can be put into a feed hopper.

[0012] In a preferred embodiment of the present invention, an outlet valve is provided at the bottom of the carbonization chamber, and a discharge port is provided at the bottom of the fixed outer cylinder.

[0013] In a preferred embodiment of the present invention, a discharge guide slope is provided on the inner wall of the discharge port, and a storage tank with a top opening is provided directly below the discharge port.

[0014] In a preferred embodiment of the present invention, the outer wall of the combustion chamber is wrapped with a heat-insulating layer, and an air inlet and a smoke exhaust port are provided on the combustion chamber.

[0015] In a preferred embodiment of the present invention, a preset amount of combustible gas is stored in the gas storage tank.

[0016] As described above, the stacking rotary carbonization equipment of the utility model adopts a stacking bed type, which has a larger processing capacity; the carbonization chamber is arranged at an angle and has a rotating function. The entire carbonization equipment is a stacking rotary type. During operation, the entire carbonization chamber is constantly rotating, so that the materials inside are constantly tumbling and stirred. At the same time, a baffle is set in the carbonization chamber to shovel and stir the materials, which can prevent the materials from sliding with the carbonization chamber and failing to achieve a stirring effect. The rotation function of the carbonization chamber and the cooperation of the baffle can achieve a very good stirring effect, ensuring that the carbonization of the materials is more uniform, the uniformity of the products is more effectively guaranteed, and the carbonization effect is better. It has a simple structure, small footprint, and light weight, which is convenient for on-site carbonization of straw in farmland. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0018] Figure 1: It is a structural schematic diagram of the stacking rotary carbonization equipment provided by the utility model.

[0019] Figure 2 : A schematic diagram of the process of carbonization provided by the utility model.

[0020] Description of Figure Numbers:

[0021] 1. Carbonization chamber; 11. Baffle;

[0022] 2. Combustion chamber; 21. Ignition device; 22. Insulation layer; 23. Air inlet; 24. Smoke outlet;

[0023] 3. Condensation tank; 31. Second gas path; 32. Third gas path;

[0024] 4. gas storage tank; 41. first gas path; 411. air pump;

[0025] 5. Fixed outer cylinder; 51. Discharge port; 511. Discharge guide slope;

[0026] 6. Base; 61. Fixed bracket; 611. Sub-fixed bracket; 62. Rotating bracket; 621. Roller; 622. Sub-rotating bracket; 63. Self-locking universal wheel;

[0027] 7. Feed hopper; 71. Feed and air inlet valve; 72. Pellet machine;

[0028] 8. Storage tank. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a stacked rotary carbonization equipment, including a carbonization chamber 1, a combustion chamber 2 and an axially inclined fixed outer cylinder 5, the carbonization chamber 1 is a stacked bed carbonization furnace, and a baffle 11 is fixedly provided on the side wall of the carbonization chamber 1; the carbonization chamber 1 is arranged in the fixed outer cylinder 5, is coaxially arranged with the fixed outer cylinder 5 and can rotate around the axis; a part of the fixed outer cylinder 5 is located in the combustion chamber 2 and is fixedly connected to the combustion chamber 2, and both ends of the fixed outer cylinder 5 extend out of the combustion chamber 2 respectively.

[0031] Among them, the carbonization chamber 1, the fixed outer cylinder 5 and the combustion chamber 2 are all cylindrical, and the combustion chamber 2 surrounds the carbonization chamber 1. The device can be used for carbonization of straw. When in use, the straw is added to the carbonization chamber 1, ignited and burned in the combustion chamber 2, the fixed outer cylinder 5 remains stationary, and the carbonization chamber 1 can rotate around its own axis.

[0032] Due to the low stacking density and dispersion of materials such as straw, the carbonization equipment in this embodiment adopts a stacking bed type with a larger processing capacity; the carbonization chamber 1 is arranged at an angle and has a rotating function, and the entire carbonization equipment is a stacking rotary type. During operation, the entire carbonization chamber 1 is constantly rotating, so that the materials inside are constantly tumbling and stirring. At the same time, a baffle 11 is set in the carbonization chamber 1 to shovel and stir the materials, which can prevent the materials from sliding with the carbonization chamber 1 and failing to achieve a stirring effect. The rotation function of the carbonization chamber 1 and the baffle 11 can achieve a very good stirring effect, ensuring that the carbonization of the materials is more uniform, the uniformity of the product is more effectively guaranteed, and the carbonization effect is better. It has a simple structure, small footprint, and light weight, which is convenient for on-site carbonization of straw in farmland.

[0033] The angle between the axis of the carbonization chamber 1 and the horizontal plane is preferably 60-80°. This inclination angle can ensure that the material in the carbonization chamber 1 has a better tumbling effect and makes the carbonization more uniform.

[0034] The baffle 11 is mainly used to scoop up materials when the carbonization chamber 1 rotates to prevent the materials from sliding on the inner wall of the carbonization chamber 1. The angle between the plate surface of the baffle 11 and the axis of the carbonization chamber 1 should be greater than or equal to 0° and less than 90°. In this embodiment, the baffle 11 is a rectangular plate, and its plate surface is parallel to the axis of the carbonization chamber 1. The number of baffles 11 is determined according to needs, and in this embodiment, there are multiple baffles.

[0035] Reference Figure 1 The stacking rotary carbonization equipment also includes a base 6, a fixed bracket 61, a rotating bracket 62 and a driving device. The fixed outer cylinder 5 is fixedly connected to the base 6 through the fixed bracket 61. The first end of the rotating bracket 62 is fixedly connected to the base 6. The second end of the rotating bracket 62 is provided with a rotatable roller 621. The roller 621 can extend into the fixed outer cylinder 5 and contact the outer wall of the carbonization chamber 1. The driving device is connected to the carbonization chamber 1 and can drive the carbonization chamber 1 to rotate.

[0036] The fixed bracket 61 is mainly used to fix and support the inclined fixed outer cylinder 5. The fixed bracket 61 can include a plurality of sub-fixed brackets 611. The specific structure and shape can be determined as needed. The rotating bracket 62 is mainly used to support the inclined and rotatable carbonization chamber 1. The rotating bracket 62 can also include a plurality of sub-rotating brackets. The first end of each sub-rotating bracket is fixedly connected to the base 6, and the other end is provided with a roller 621. The driving device can be, for example, a motor, etc. When driving the carbonization chamber 1 to rotate, each roller 621 rolls and frictionally contacts with the outer wall of the carbonization chamber 1.

[0037] Of course, the carbonization chamber 1 can also be supported in other ways, for example, a plurality of bearings can be arranged between the carbonization chamber 1 and the fixed outer cylinder 5. A self-locking universal wheel 63 can also be arranged at the bottom of the base 6 to make the carbonization equipment movable, so as to facilitate the movement of the entire carbonization equipment.

[0038] Further preferably, refer to Figure 1 The stacking rotary carbonization equipment also includes a condensation tank 3 and a gas storage tank 4. An igniter 21 is provided in the combustion chamber 2. The gas storage tank 4 is connected to the igniter 21 through a first gas path 41. The carbonization chamber 1 is connected to the condensation tank 3 through a second gas path 31. The condensation tank 3 and the gas storage tank 4 are connected through a third gas path 32. A pumping device (for example, an air pump 411) is provided on at least one of the first gas path 41, the second gas path 31 and the third gas path 32.

[0039] When the straw is carbonized, the straw is added to the carbonization chamber 1, and the igniter 21 ignites and burns the combustible gas to provide energy for carbonization. After the straw is carbonized at high temperature, the combustible gas generated enters the condensation tank 3 through the second gas path 31 under the action of the pumping device. The combustible gas after condensation and removal of tar and water vapor enters the gas storage tank 4 through the third gas path 32 for storage, and then is sent to the combustion chamber 2 for combustion through the first gas path 41. When the combustible gas generated by the straw carbonization is circulated, the self-circulation heating of the carbonization process can be realized.

[0040] Through the cooperation of the condensing tank 3, the gas storage tank 4 and the pumping device, the combustible gas generated by the pyrolysis and carbonization of the straw can be collected and introduced into the combustion chamber 2 for combustion, which effectively reduces the energy consumption of the pyrolysis of the straw, realizes the self-heating carbonization technology, does not require external energy supply, reduces gas consumption, and has lower costs.

[0041] Furthermore, in order to facilitate the addition of materials into the carbonization chamber 1, a feed hopper 7 is provided at the top of the fixed outer cylinder 5, the bottom of the feed hopper 7 can extend into the fixed outer cylinder 5 and be rotatably connected to the top of the carbonization chamber 1, and a feed air intake valve 71 is provided at the bottom of the feed hopper 7.

[0042] The bottom of the feed hopper 7 can be connected to the top of the carbonization chamber 1 through a corresponding bearing, and the bearing should be coaxially arranged with the carbonization chamber 1. The feed air inlet valve 71 is used for feeding on the one hand and for air intake on the other hand. When in use, the feed air inlet valve 71 is fully opened. After the material is added to the carbonization chamber 1, the feed air inlet valve 71 is partially closed with a small opening, so that a small amount of air can continue to enter the carbonization chamber 1 during the carbonization process, ensuring that the pyrolysis gas generated by carbonization can smoothly enter the condensation tank 3.

[0043] In this embodiment, the stacking rotary carbonization equipment further includes a pelletizer 72 for shaping the material, and the material shaped by the pelletizer 72 can be put into the feed hopper 7. The pelletizer 72 is used to pre-shape the material before carbonization, which can greatly increase the material processing capacity.

[0044] In order to facilitate the discharge of the carbonization chamber 1, an outlet valve is provided at the bottom of the carbonization chamber 1, and a discharge port 51 is provided at the bottom of the fixed outer cylinder 5. The inner wall of the discharge port 51 is provided with a discharge guide slope 511, and a storage tank 8 with an open top is provided directly below the discharge port 51. Specifically, the side wall of the inner wall of the discharge port 51 close to the rotating bracket 62 is an inclined surface, so that the carbonized material falls into the storage tank 8 below along the discharge guide slope 511 under the action of gravity.

[0045] Furthermore, an outer wall of the combustion chamber 2 is wrapped with an insulation layer 22, and an air inlet 23 and a smoke exhaust port 24 are provided on the combustion chamber 2. The air inlet 23 is generally provided on the bottom side wall of one side of the combustion chamber 2, and the smoke exhaust port 24 is provided on the top side wall of the other side of the combustion chamber 2.

[0046] Generally, a preset amount of combustible gas is stored in the gas storage tank 4 .

[0047] The carbonization equipment has a self-circulation heating operation state and an external supplementation operation state. When the carbonization equipment is in the self-circulation heating operation state, the combustible gas generated in the carbonization chamber 1 can enter the combustion chamber 2 through the condensation tank 3 and the gas storage tank 4 under the action of the pumping device. When the carbonization equipment is in the external supplementation operation state, the combustible gas pre-stored in the gas storage tank 4 can enter the combustion chamber 2 under the action of the pumping device.

[0048] During the carbonization process, the self-heating carbonization process of the straw can be realized after the combustible gas generated by the carbonization of the straw is circulated. At the same time, a certain amount of combustible gas (such as methane gas) is pre-stored in the gas storage tank 4, which can replenish energy for the carbonization process in time to deal with the situation of insufficient combustible gas.

[0049] More specifically, taking straw as an example, the carbonization process of the stacking rotary carbonization equipment is as follows:

[0050] After being formed by the pellet machine 72, the straw is sent to the feed hopper 7, the feed air intake valve 71 is opened, and the straw enters the carbonization chamber 1. The material is controlled to accumulate to 2 / 3 of the volume of the entire carbonization chamber 1. The carbonization chamber 1 is driven by the driving device to rotate continuously, and the igniter 21 ignites and burns the combustible gas to provide energy for carbonization. The combustion-supporting gas enters from the air inlet 23 below the combustion chamber 2, and the smoke after combustion is discharged from the exhaust port 24. Among them, the entire carbonization process adopts one-time feeding. After the feeding is completed, the feed air intake valve 71 is partially closed, which ensures that the carbonization chamber 1 is roughly sealed while allowing a trace amount of air to enter the entire carbonization process.

[0051] During the entire carbonization process, the combustible gas generated by carbonization is sent to the condensation tank 3 by the air pump 411, and the combustible gas after condensation and removal of tar and water vapor enters the gas storage tank 4, and then is sent to the combustion chamber 2 for combustion under the action of the air pump 411, thereby realizing self-circulation heating of the carbonization process.

[0052] The straw is discharged at once after being carbonized at high temperature for a certain period of time. At this time, the outlet valve is opened, and the carbonized straw slides down the outlet guide slope into the storage tank 8 under the action of gravity.

[0053] In summary, the stacking rotary carbonization equipment in this embodiment is a portable and movable stacking rotary self-sustaining carbonization equipment, which solves the current problems of scattered straw, low stacking density, difficulty in collecting and centralized processing, difficult transportation and huge energy consumption for carbonization. The device has a simple structure, light weight, and small footprint, which is convenient for on-site carbonization of straw in farmland. The carbonization equipment adopts a stacking rotary design, and the straw is pre-formed by the pellet machine 72 and then pyrolyzed and carbonized, which greatly improves the straw processing capacity and work efficiency. At the same time, the combustible smoke generated by the pyrolysis of the carbonization process is stored in the gas storage tank 4, and introduced into the combustion chamber 2 during the carbonization process for combustion to provide heat for the straw carbonization, thereby reducing gas consumption; the gas storage tank 4 is provided so that the device can realize self-heating carbonization of straw without external energy supply, and is suitable for on-site portable carbonization of straw; the continuous carbonization process of straw is realized, and the pyrolysis carbonization process is efficient and energy-saving. During the carbonization process, the carbonization chamber 1 can rotate and be arranged at an angle, and a baffle 11 is arranged in the carbonization chamber 1 to stir the material by rotation, thereby greatly ensuring the uniformity of the product.

[0054] Furthermore, this embodiment also provides a carbonization method, using the above-mentioned stacking rotary carbonization equipment to carbonize the material, the carbonization method includes:

[0055] Add materials into the carbonization chamber 1;

[0056] The combustible gas is burned in the combustion chamber 2 (specifically, the igniter 21 ignites and burns the combustible gas), the material is carbonized in the carbonization chamber 1, and during the carbonization process, the carbonization chamber 1 is controlled to rotate around its inclined axis.

[0057] Preferably, during the carbonization process, the combustible gas generated in the carbonization chamber 1 enters the combustion chamber 2 through the condensation tank 3 and the gas storage tank 4 under the action of a pumping device.

[0058] The specific process of the carbonization method has been described above and will not be repeated here. The carbonization method has the same advantages as the stacking rotary carbonization equipment.

[0059] The above is only an illustrative embodiment of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model.

Claims

1. A stacking rotary carbonization equipment, characterized in that: It includes a carbonization chamber, a combustion chamber and an axially inclined fixed outer cylinder; The carbonization chamber is a stacked bed carbonization furnace, and a baffle is fixedly provided on the inner wall of the carbonization chamber; the carbonization chamber is arranged in the fixed outer cylinder, is coaxially arranged with the fixed outer cylinder and can rotate around the axis; part of the fixed outer cylinder is located in the combustion chamber and is fixedly connected to the combustion chamber, and both ends of the fixed outer cylinder extend out of the combustion chamber respectively.

2. The stacking rotary carbonization equipment according to claim 1, characterized in that: The angle between the axis of the carbonization chamber and the horizontal plane is 60-80°, and the plate surface of the baffle is parallel to the axis of the carbonization chamber.

3. The stacking rotary carbonization equipment according to claim 1, characterized in that: The stacking rotary carbonization equipment also includes a base, a fixed bracket, a rotating bracket and a driving device. The fixed outer cylinder is fixedly connected to the base through the fixed bracket, the first end of the rotating bracket is fixedly connected to the base, and the second end of the rotating bracket is provided with a rotatable roller, the roller can extend into the fixed outer cylinder and contact the outer wall of the carbonization chamber, and the driving device is connected to the carbonization chamber and can drive the carbonization chamber to rotate.

4. The stacking rotary carbonization equipment according to claim 1, characterized in that: The stacking rotary carbonization equipment also includes a condensation tank and a gas storage tank. An igniter is provided in the combustion chamber. The gas storage tank is connected to the igniter through a first gas path. The carbonization chamber is connected to the condensation tank through a second gas path. The condensation tank and the gas storage tank are connected through a third gas path. A pumping device is provided on at least one of the first gas path, the second gas path and the third gas path.

5. The stacking rotary carbonization equipment according to claim 1, characterized in that: A feed hopper is provided at the top of the fixed outer cylinder, the bottom of which can extend into the fixed outer cylinder and be rotatably connected to the top of the carbonization chamber, and a feed and air inlet valve is provided at the bottom of the feed hopper.

6. The stacking rotary carbonization equipment according to claim 5, characterized in that: The stacking rotary carbonization equipment also includes a pelletizer for shaping materials, and the materials shaped by the pelletizer can be put into the feed hopper.

7. The stacking rotary carbonization equipment according to claim 1, characterized in that: An outlet valve is arranged at the bottom of the carbonization chamber, and a material discharge port is arranged at the bottom of the fixed outer cylinder.

8. The stacking rotary carbonization equipment according to claim 7, characterized in that: The inner wall of the discharge port is provided with a discharge guiding slope, and a storage tank with a top opening is provided directly below the discharge port.

9. The stacking rotary carbonization equipment according to claim 1, characterized in that: The outer wall of the combustion chamber is wrapped with a heat-insulating layer, and an air inlet and a smoke exhaust port are arranged on the combustion chamber.

10. The stacking rotary carbonization equipment according to claim 4, characterized in that: A preset amount of combustible gas is stored in the gas storage tank.

Images