Carbonization furnace for producing desulfurization and denitrification activated carbon

Abstract

The utility model relates to the technical field of activated carbon production, disclose a carbonization furnace for desulfurization and denitrification activated carbon production, including furnace body, the outer wall fixedly connected with preheating box of furnace body, fixedly connected with steam pipe between furnace body and preheating box, be provided with solenoid valve on steam pipe, the inside of preheating box is provided with preheating mechanism and turbulence mechanism, the bottom of preheating box is provided with pressure relief hole, the preheating mechanism includes rotary drum, the rotary drum rotatoryly connects in the inner wall of preheating box. In the utility model, through the design of preheating mechanism, can utilize the steam of wood carbonization initial stage to carry out preheating to the wood to be carbonized, can complete part moisture evaporation in advance through preheating to wood, can improve carbonization efficiency, reduce energy consumption, not only can make wood carbonization initial stage generated steam can be reasonably utilized, also greatly reduced the energy consumption needed for wood carbonization.

Description

Technical Field

[0001] This utility model relates to the field of activated carbon production technology, and in particular to a carbonization furnace for the production of desulfurization and denitrification activated carbon. Background Technology

[0002] Activated carbon production is a process that transforms carbonaceous materials into adsorbent materials with highly developed pore structures through multiple steps such as raw material pretreatment, carbonization, and activation. The raw materials are widely available, including wood, coconut shells, coal, and fruit shells.

[0003] The carbonization furnace is the core equipment in activated carbon production, responsible for the carbonization process. Its main function is to provide a suitable high-temperature environment for the raw materials, promoting their pyrolysis reaction. When using wood as raw material, in the initial stage of carbonization, a large amount of moisture in the wood evaporates, producing a large amount of water vapor; this process is mainly physical dehydration. As the temperature rises and the process enters the middle and later stages, organic components such as cellulose and hemicellulose in the wood begin to decompose, releasing various combustible gases such as methane, hydrogen, and carbon monoxide.

[0004] For the flammable gases such as methane and hydrogen produced in the middle and later stages of carbonization, most equipment on the market currently adopts a closed-loop combustion method to collect them and reintroduce them into the furnace as fuel, effectively reducing the consumption of external energy. However, the large amount of water vapor produced in the early stage of carbonization is often directly emitted into the atmosphere because it is non-toxic and harmless. The large amount of heat energy carried by this water vapor is also lost and not rationally utilized, resulting in a certain amount of energy waste. Therefore, a carbonization furnace for the production of desulfurized and denitrified activated carbon is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a carbonization furnace for the production of desulfurization and denitrification activated carbon, which aims to improve the problem mentioned in the prior art that "a large amount of water vapor generated in the initial stage of carbonization is not fully utilized, resulting in a waste of thermal energy".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a carbonization furnace for the production of desulfurized and denitrified activated carbon, comprising a furnace body, a preheating box fixedly connected to the outer wall of the furnace body, a steam pipe fixedly connected between the furnace body and the preheating box, an electromagnetic valve installed on the steam pipe, a preheating mechanism and a turbulence mechanism installed inside the preheating box, and a pressure relief hole opened at the bottom of the preheating box;

[0007] The preheating mechanism includes a rotating drum rotatably connected to the inner wall of the preheating box. Heat-conducting fins are fixedly connected to the outer wall of the rotating drum. One end of the furnace body is an open structure, and a gear ring is fixedly connected to the other end of the furnace body. A motor is fixedly connected to the top of the preheating box, and a rotating shaft is fixedly connected to the output end of the motor. A gear that meshes with the gear ring is fixedly connected to the outer wall of the rotating shaft.

[0008] As a further description of the above technical solution:

[0009] The turbulence-disrupting mechanism includes a rotating rod, one end of which is rotatably connected to the inner wall of the preheating box, and the other end of which penetrates the preheating box and is fixedly connected to a protrusion. A turbulence-disrupting plate is fixedly connected to the outer wall of the rotating rod, and the rotating rod is rotatably connected to the penetration point of the preheating box.

[0010] As a further description of the above technical solution:

[0011] The top of the preheating box is slidably connected to a slide rod, and a connecting rod is hinged to the outer wall of the slide rod. The end of the connecting rod away from the slide rod is hinged to the outer wall of the protrusion.

[0012] As a further description of the above technical solution:

[0013] A ball-head rod is fixedly connected to the outer wall of the slide rod, and the end of the ball-head rod away from the slide rod is a hemispherical structure.

[0014] As a further description of the above technical solution:

[0015] A sleeve is fixedly connected to the outer wall of the rotating shaft, and the sleeve and the rotating shaft are coaxial.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the sleeve is provided with a cam groove, which is a spiral groove structure with the ends connected.

[0018] As a further description of the above technical solution:

[0019] The end of the ball joint away from the slide bar is attached to the inner wall of the cam groove.

[0020] As a further description of the above technical solution:

[0021] The interior of the furnace body is connected to the interior of the preheating box via a steam pipe.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the design of the preheating mechanism allows the use of steam generated in the early stage of wood carbonization to preheat the wood to be carbonized. By preheating the wood, some moisture can be evaporated in advance, thereby improving carbonization efficiency and reducing energy consumption. This not only allows the steam generated in the early stage of wood carbonization to be used rationally, but also significantly reduces the energy consumption required for wood carbonization.

[0024] 2. In this utility model, the design of the turbulence mechanism allows the steam discharged into the preheating box through the steam pipe to diffuse evenly on the outer wall of the heat-conducting fins, so that the heat-conducting fins can be heated evenly, thereby allowing the wood inside the rotating drum to be heated evenly. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;

[0027] Figure 3 This is a cross-sectional structural diagram of the preheating box of this utility model;

[0028] Figure 4 This utility model Figure 2 A magnified structural diagram at point A.

[0029] Legend:

[0030] 1. Furnace body; 2. Preheating box; 3. Steam pipe; 31. Solenoid valve; 4. Preheating mechanism; 41. Rotary drum; 42. Heat-conducting fins; 43. Gear ring; 44. Motor; 45. Rotating shaft; 46. Gear; 5. Baffle mechanism; 51. Rotating rod; 52. Protrusion; 53. Baffle plate; 54. Slide rod; 55. Connecting rod; 56. Ball end rod; 57. Sleeve; 58. Cam groove; 6. Pressure relief hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of a carbonization furnace for the production of desulfurized and denitrified activated carbon, comprising a furnace body 1, a preheating box 2 fixedly connected to the outer wall of the furnace body 1, and doors hinged to the front of both the furnace body 1 and the preheating box 2. A steam pipe 3 is fixedly connected between the furnace body 1 and the preheating box 2, and the steam generated during the carbonization process of the furnace body 1 can be introduced into the interior of the preheating box 2 through the steam pipe 3. An electromagnetic valve 31 is provided on the steam pipe 3, and the opening and closing of the steam pipe 3 can be controlled by the electromagnetic valve 31. A preheating mechanism 4 and a turbulence mechanism 5 are provided inside the preheating box 2, and a pressure relief hole 6 is provided at the bottom of the preheating box 2, through which the steam inside the preheating box 2 can be gradually discharged to the outside.

[0033] Reference Figure 2 - Figure 4 The preheating mechanism 4 includes a rotating drum 41, which is rotatably connected to the inner wall of the preheating box 2. The rotating drum 41 can be used to preheat the wood to be carbonized. The outer wall of the rotating drum 41 is fixedly connected to heat-conducting fins 42. The heat-conducting fins 42 exchange heat with the steam inside the preheating box 2, which can gradually raise the temperature of the rotating drum 41. One end of the furnace body 1 is an open structure, and the other end of the furnace body 1 is fixedly connected to a gear ring 43. When the gear ring 43 rotates, it will drive the rotating drum 41 to rotate synchronously inside the preheating box 2. The top of the preheating box 2 is fixedly connected to a motor 44. The output end of the motor 44 is fixedly connected to a rotating shaft 45. The outer wall of the rotating shaft 45 is fixedly connected to a gear 46 that meshes with the gear ring 43. When the motor 44 is started, it drives the rotating shaft 45 to rotate. When the rotating shaft 45 rotates, it drives the gear 46 to rotate synchronously. When the gear 46 rotates, it drives the gear ring 43 that meshes with it to rotate.

[0034] Reference Figure 2 - Figure 4The turbulence-dissipating mechanism 5 includes a rotating rod 51. One end of the rotating rod 51 is rotatably connected to the inner wall of the preheating box 2, and the other end of the rotating rod 51 passes through the preheating box 2 and is fixedly connected to a protrusion 52. A turbulence-dissipating plate 53 is fixedly connected to the outer wall of the rotating rod 51. When the rotating rod 51 rotates back and forth, it drives the turbulence-dissipating plate 53 to swing back and forth. The back and forth swing of the turbulence-dissipating plate 53 can guide the steam discharged into the preheating box 2 from the steam pipe 3, so that the steam can diffuse to the left and right sides of the steam pipe 3, thereby improving the coverage of the steam. The rotating rod 51 is rotatably connected to the passage of the preheating box 2. A sliding rod 54 is slidably connected to the top of the preheating box 2. A connecting rod 55 is hinged to the outer wall of the sliding rod 54. The end of the connecting rod 55 away from the sliding rod 54 is hinged to the outer wall of the protrusion 52. When the sliding rod 54 slides back and forth, it pushes and pulls the connecting rod 55 back and forth, so that the connecting rod 55 pushes and pulls the protrusion 52 back and forth. 2. At this time, the protrusion 52 will drive the rotating rod 51 to rotate back and forth on the inner wall of the preheating box 2. The outer wall of the rotating shaft 45 is fixedly connected to the sleeve 57. The sleeve 57 and the rotating shaft 45 are in a coaxial state. When the rotating shaft 45 rotates, it will drive the sleeve 57 to rotate synchronously. The outer wall of the sleeve 57 is provided with a cam groove 58. The cam groove 58 is a spiral groove structure with the ends connected. The outer wall of the slide rod 54 is fixedly connected to the ball head rod 56. When the ball head rod 56 pushes and pulls the slide rod 54 back and forth, the slide rod 54 will slide back and forth on the top of the preheating box 2. The end of the ball head rod 56 away from the slide rod 54 is a hemispherical structure. The end of the ball head rod 56 away from the slide rod 54 is attached to the inner wall of the cam groove 58. When the sleeve 57 rotates, the cam groove 58 on its outer wall will press the ball head rod 56 back and forth. At this time, under the guidance of the cam groove 58, the ball head rod 56 will push and pull the slide rod 54 back and forth.

[0035] Working principle: When the wood inside furnace body 1 is in the initial stage of carbonization, the wood to be carbonized is placed inside the rotating drum 41, and the door of the preheating box 2 is closed. Then, the steam pipe 3 is opened through the solenoid valve 31, allowing steam from inside furnace body 1 to enter the preheating box 2 through the steam pipe 3. This allows the steam generated in the initial stage of wood carbonization to fill the interior of the preheating box 2. At the same time, the heat exchange between the heat-conducting fins 42 and the steam gradually raises the temperature of the rotating drum 41, thus preheating the wood inside the rotating drum 41. By preheating the wood, some moisture can be evaporated in advance, thereby... To improve carbonization efficiency and reduce energy consumption, the starting motor 44 drives the rotating shaft 45 to rotate. As the rotating shaft 45 rotates, it drives the gear 46 to rotate synchronously. As the gear 46 rotates, it drives the gear ring 43 that meshes with it to rotate. At this time, the gear ring 43 drives the rotating drum 41 to rotate inside the preheating box 2. As the rotating drum 41 rotates, the wood inside it tumbles inside the rotating drum 41. This not only allows the wood to be heated evenly, but also allows the heat-conducting fins 42 on the outer wall of the rotating drum 41 to be fully covered by steam. This allows the rotating drum 41 to be heated evenly, thus improving the preheating efficiency of the wood.

[0036] While rotating, the shaft 45 drives the sleeve 57 to rotate synchronously. As the sleeve 57 rotates, the cam groove 58 on its outer wall reciprocates and presses against the ball head rod 56. Under the guidance of the cam groove 58, the ball head rod 56 reciprocates and pushes and pulls the slide rod 54, causing the slide rod 54 to slide back and forth on the top of the preheating box 2. While sliding back and forth, the slide rod 54 reciprocates and pushes and pulls the connecting rod 55, causing the connecting rod 55 to reciprocate and push and pull the protrusion 52. At this time, the protrusion 52 drives the rotating rod 51 to rotate back and forth on the inner wall of the preheating box 2. While rotating back and forth, the rotating rod 51 drives the baffle 53 to swing back and forth. The reciprocating swing of the baffle 53 can guide the steam discharged into the preheating box 2 from the steam pipe 3, allowing the steam to diffuse to the left and right sides of the steam pipe 3, thereby increasing the coverage of the steam and allowing the heat-conducting fins 42 on the outer wall of the rotating cylinder 41 to be heated evenly, thereby improving the heating efficiency of the rotating cylinder 41.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carbonization furnace for producing desulfurization and denitrification activated carbon, comprising a furnace body (1), characterized in that: A preheating box (2) is fixedly connected to the outer wall of the furnace body (1). A steam pipe (3) is fixedly connected between the furnace body (1) and the preheating box (2). A solenoid valve (31) is installed on the steam pipe (3). A preheating mechanism (4) and a turbulence mechanism (5) are installed inside the preheating box (2). A pressure relief hole (6) is opened at the bottom of the preheating box (2). The preheating mechanism (4) includes a rotating drum (41), which is rotatably connected to the inner wall of the preheating box (2). The outer wall of the rotating drum (41) is fixedly connected to heat-conducting fins (42). One end of the furnace body (1) is an open structure, and the other end of the furnace body (1) is fixedly connected to a gear ring (43). The top of the preheating box (2) is fixedly connected to a motor (44), and the output end of the motor (44) is fixedly connected to a rotating shaft (45). The outer wall of the rotating shaft (45) is fixedly connected to a gear (46) that meshes with the gear ring (43).

2. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 1, characterized in that: The turbulence-disrupting mechanism (5) includes a rotating rod (51), one end of which is rotatably connected to the inner wall of the preheating box (2), the other end of which passes through the preheating box (2) and is fixedly connected to a protrusion (52), a turbulence-disrupting plate (53) is fixedly connected to the outer wall of the rotating rod (51), and the rotating rod (51) is rotatably connected to the through-hole of the preheating box (2).

3. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 1, characterized in that: The top of the preheating box (2) is slidably connected to a slide rod (54), and a connecting rod (55) is hinged to the outer wall of the slide rod (54). The end of the connecting rod (55) away from the slide rod (54) is hinged to the outer wall of the protrusion (52).

4. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 3, characterized in that: A ball-head rod (56) is fixedly connected to the outer wall of the slide rod (54), and the end of the ball-head rod (56) away from the slide rod (54) is a hemispherical structure.

5. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 1, characterized in that: A sleeve (57) is fixedly connected to the outer wall of the rotating shaft (45), and the sleeve (57) and the rotating shaft (45) are coaxial.

6. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 5, characterized in that: The outer wall of the sleeve (57) is provided with a cam groove (58), which is a spiral groove structure with the ends connected.

7. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 4, characterized in that: The end of the ball joint (56) away from the slide bar (54) is attached to the inner wall of the cam groove (58).

8. The carbonization furnace for producing desulfurization and denitrification activated carbon according to claim 1, characterized in that: The interior of the furnace body (1) is connected to the interior of the preheating box (2) via a steam pipe (3).

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