Heating box for activated carbon production

By designing staggered conveyor belts and a heat recovery system, the problems of discontinuous drying and heat waste in existing heating boxes were solved, achieving efficient and continuous drying and heat utilization of activated carbon.

CN224353517UActive Publication Date: 2026-06-12NINGXIA YINJIAN KABEN ACTIVATED CHARCOAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA YINJIAN KABEN ACTIVATED CHARCOAL CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing heating boxes used in activated carbon production suffer from discontinuous drying processes, which affect processing efficiency and prevent the recovery and utilization of heat.

Method used

Design a heating box comprising a housing, conveyor belts, hot air components, and hot water components. The activated carbon is continuously dried by the staggered conveyor belts, and the heat from the exhaust air is used to heat water for heat recovery.

Benefits of technology

This technology enables continuous drying of activated carbon, improves processing efficiency, and reduces energy waste through heat recovery.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224353517U_ABST
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Abstract

This utility model discloses a heating box for activated carbon production, including a box body. A feed inlet is located on one side of the top wall of the box body, and a discharge outlet is located at the bottom of the side wall away from the feed inlet. Multiple conveyor belts are horizontally arranged inside the box body, and these conveyor belts are staggered within the box body. This utility model includes a box body, multiple conveyor belts, multiple motors, an air inlet hood, and a hot air assembly. The multiple conveyor belts are staggered from top to bottom inside the box body. Activated carbon enters the box body from the top and is sequentially conveyed by the conveyor belts. During this process, hot air is blown into the box body through the hot air assembly and the air inlet hood to dry the activated carbon on the surfaces of the multiple conveyor belts. This heating box not only achieves continuous drying of activated carbon but also ensures that the activated carbon has sufficient conveying distance within the box body to be dried, thereby guaranteeing drying efficiency and effectiveness.
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Description

Technical Field

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

[0002] Activated carbon is a specially treated form of carbon. Organic raw materials (such as fruit shells, coal, and wood) are heated in an air-free environment to reduce non-carbon components. They then react with gases, causing surface erosion and creating a highly porous structure. In the production of activated carbon, raw materials (such as wood, coconut shells, fruit shells, or coal) are heated to high temperatures in an oxygen-deficient environment to prevent complete combustion. The purpose of this stage is to convert the raw materials into basic carbon. The carbonized material then needs to be heated again.

[0003] A search revealed that patent CN221724806U discloses a heating box for activated carbon production. This box uses a placement plate and a rotating frame to store activated carbon. After the activated carbon on the placement plate is heated once inside the fixed box, it can be added to the rotating frame for reheating. This heating method has the following drawbacks: Firstly, the activated carbon must be added and dried. After drying, the dried activated carbon must be removed. If secondary drying is required, the activated carbon must be added back to the rotating frame, which is very time-consuming and affects processing efficiency, preventing continuous drying of the activated carbon. Secondly, the heat generated during drying cannot be recovered and reused, resulting in heat waste. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heating box for activated carbon production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heating box for activated carbon production, comprising a box body, an inlet on one side of the top wall of the box body, an outlet on the bottom end of the side wall of the box body away from the inlet, multiple conveyor belts horizontally arranged inside the box body, the multiple conveyor belts being arranged in a staggered manner inside the box body, a feeding hopper fixed on the upper surface of the box body outside the inlet, an air inlet on one side wall of the box body, an air inlet hood fixed on the surface of the air inlet, a hot air assembly installed on the upper surface of the box body, the hot air assembly being connected to the air inlet hood, an air outlet on the side of the box body facing the air inlet hood, a U-shaped plate fixed on the outer wall of the box body on the side of the air outlet, a hot water assembly fixed inside the U-shaped plate, and a controller fixed on the outer wall of the box body.

[0006] Furthermore, a motor is installed on the outer wall of the box corresponding to each conveyor belt, and multiple conveyor belts are driven to rotate by multiple motors respectively. The lowermost conveyor belt extends through the discharge port to the outside of the box, and the rotation directions of two adjacent conveyor belts are opposite. The motor is electrically connected to the controller.

[0007] Furthermore, an inclined guide plate is fixed to the inner side wall of the box and between two adjacent conveyor belts.

[0008] Furthermore, the hot air assembly includes a fan fixed to the upper surface of the housing, and the fan exhaust port is fixedly connected to a duct. The other end of the duct is connected to the air inlet hood. A heating tube is fixed in the middle of the duct, and an electric heating wire is fixed inside the heating tube. The electric heating wire and the fan are both electrically connected to the controller.

[0009] Furthermore, a dustproof net is fixed inside the air outlet.

[0010] Furthermore, the hot water assembly includes several thin tubes horizontally arranged inside the U-shaped plate, with side tubes fixedly connected to both ends of each thin tube, and an inlet pipe and an outlet pipe fixedly connected to the middle of each of the two side tubes, with both the inlet pipe and the outlet pipe extending to the outside of the U-shaped plate.

[0011] Furthermore, multiple casters are fixed to the lower surface of the housing.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model describes a heating box for activated carbon production, which includes a box body, multiple conveyor belts, multiple motors, an air inlet hood, and a hot air assembly. The multiple conveyor belts are arranged alternately from top to bottom inside the box body. After the activated carbon enters the box body from the top, it is conveyed sequentially by the conveyor belts. During this process, hot air is blown into the box body through the hot air assembly and the air inlet hood to dry the activated carbon on the surface of the multiple conveyor belts. This heating box not only achieves continuous drying of activated carbon but also ensures that the activated carbon has a sufficient conveying distance inside the box to be dried, thereby ensuring drying efficiency and effect.

[0014] 2. When in use, this utility model is a heating box for activated carbon production, which is equipped with a U-shaped plate and a hot water component. The hot air blown out from the air outlet of the box can heat the water in the hot water component, realizing heat recovery and utilization and avoiding heat waste. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : Overall perspective view of this utility model;

[0017] Figure 2 : Overall sectional view of this utility model;

[0018] Figure 3 : Schematic diagram of the U-shaped plate and hot water component of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Housing; 101. Feed inlet; 102. Discharge outlet; 2. Casters; 3. Conveyor belt; 4. Feed hopper; 5. Motor; 6. Air inlet hood; 7. Hot air assembly; 71. Fan; 72. Air duct; 73. Heating element; 8. Air outlet; 9. Guide plate; 10. Reverse plate; 11. Hot water assembly; 111. Thin tube; 112. Side tube; 113. Water inlet pipe; 114. Water outlet pipe; 12. Controller. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, a heating box for activated carbon production is disclosed, comprising a box body 1. A feed inlet 101 is provided on one side of the top wall of the box body 1, and a discharge outlet 102 is provided at the bottom end of the side wall of the box body 1 away from the feed inlet 101. Multiple conveyor belts 3 are horizontally arranged inside the box body 1, and the multiple conveyor belts 3 are arranged in a staggered manner inside the box body 1. A feeding hopper 4 is fixed on the upper surface of the box body 1 outside the feed inlet 101. An air inlet is provided on one side wall of the box body 1, and an air inlet hood 6 is fixed on the surface of the air inlet. A hot air assembly 7 is installed on the upper surface of the box body 1 and is connected to the air inlet hood 6. An air outlet 8 is provided on the side of the box body 1 facing the air inlet hood 6. A U-shaped plate 10 is fixed on the outer side wall of the box body 1 and on the side of the air outlet 8. A hot water assembly 11 is fixed inside the U-shaped plate 10. A controller 12 is fixed on the outer side wall of the box body 1.

[0023] In this embodiment, the controller 12 is a Siemens S7-200 programmable controller, which controls the operation of the electronic components of the heating box.

[0024] A motor 5 is installed on the outer wall of the box 1 for each conveyor belt 3, and multiple conveyor belts 3 are driven to rotate by multiple motors 5 respectively. The lowermost conveyor belt 3 extends through the discharge port 102 to the outside of the box 1. The rotation directions of two adjacent conveyor belts 3 are opposite. The motor 5 is electrically connected to the controller 12.

[0025] In this embodiment, each conveyor belt 3 is driven to rotate by a corresponding motor 5. A falling channel is left between each conveyor belt 3 and the inner wall of the box 1. Since the multiple conveyor belts 3 are arranged in an interlaced manner, the channel is also interlaced from top to bottom. When the material enters the box 1 from the feeding hopper 4 and falls on the surface of the uppermost conveyor belt 3, as the conveyor belt 3 rotates, the material will be transported from top to bottom along the multiple conveyor belts 3 and back and forth until the material falls on the surface of the lowermost conveyor belt 3 and is finally discharged from the discharge port 102. This design allows the activated carbon material to stay in the box 1 for a longer time, ensuring that the activated carbon material can be fully heated.

[0026] An inclined guide plate 9 is fixed on the inner side wall of the box 1 and between two adjacent conveyor belts 3.

[0027] By setting up the guide plate 9, the activated carbon material falling from the falling channel can be buffered and guided.

[0028] The hot air assembly 7 includes a fan 71 fixed to the upper surface of the housing 1, and a duct 72 is fixedly connected to the exhaust port of the fan 71. The other end of the duct 72 is connected to the air inlet hood 6. A heating tube 73 is fixed in the middle of the duct 72. An electric heating wire is fixed inside the heating tube 73. The electric heating wire and the fan 71 are both electrically connected to the controller 12.

[0029] After the blower 71 is started, the air blown out by the blower 71 will pass through the air duct 72 and be heated by the electric heating wire in the heating tube 73. The heated hot air is blown into the box 1 from the air inlet hood 6 and heats the activated carbon material on the surface of each conveyor belt 3.

[0030] A dustproof mesh is fixed inside the air outlet 8.

[0031] In this embodiment, by setting a dustproof net, dust in the activated carbon material can be prevented from being blown out from the air outlet 8.

[0032] The hot water assembly 11 includes several thin tubes 111 horizontally arranged inside the U-shaped plate 10. Both ends of the thin tubes 111 are fixedly connected to side tubes 112. The middle parts of the two side tubes 112 are respectively fixedly connected to an inlet pipe 113 and an outlet pipe 114. Both the inlet pipe 113 and the outlet pipe 114 extend to the outside of the U-shaped plate 10.

[0033] In this embodiment, the inlet pipe 113 and the outlet pipe 114 are connected to the circulating and insulated water tank. The water in the tank is pumped into several thin pipes 111 by the pump body. When hot air is blown out from the air outlet 8, it can heat the water in the thin pipes 111, thereby achieving the effect of heat recovery and utilization.

[0034] Multiple casters 2 are fixed to the lower surface of the housing 1. This facilitates the movement of the heating box using the casters 2.

[0035] Working principle: The heating chamber is activated by multiple motors 5, fans 71, and electric heating wires in heating tubes 73 via control unit 12. During use, activated carbon raw material is added to the chamber 1 from the feeding hopper 4. The raw material falls onto the surface of the uppermost conveyor belt 3. As the conveyor belt 3 rotates, the activated carbon raw material gradually falls downwards along the multiple conveyor belts 3. During this conveying process, the hot air assembly 7 blows hot air into the chamber 1 through the air inlet hood 6, heating the activated carbon raw material. The heated activated carbon raw material is then discharged from the outlet 102. The hot air discharged from the air outlet 8 heats the water in the thin tube 111, achieving heat recovery and utilization.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heating box for activated carbon production, comprising a box body (1), characterized in that: A feed inlet (101) is provided on one side of the top wall of the box (1), and a discharge outlet (102) is provided at the bottom of the side wall of the box (1) away from the feed inlet (101). Multiple conveyor belts (3) are horizontally arranged inside the box (1), and the multiple conveyor belts (3) are arranged in a staggered manner inside the box (1). A feeding hopper (4) is fixed on the upper surface of the box (1) outside the feed inlet (101). An air inlet is provided on one side wall of the box (1). An air inlet hood (6) is fixed to the surface of the air vent. A hot air assembly (7) is installed on the upper surface of the housing (1). The hot air assembly (7) is connected to the air inlet hood (6). An air outlet (8) is opened on the side of the housing (1) facing the air inlet hood (6). A U-shaped plate (10) is fixed on the outer wall of the housing (1) and on the side of the air outlet (8). A hot water assembly (11) is fixed inside the U-shaped plate (10). A controller (12) is fixed on the outer wall of the housing (1).

2. The heating box for activated carbon production according to claim 1, characterized in that: The outer wall of the box (1) is equipped with a motor (5) for each conveyor belt (3), and the multiple conveyor belts (3) are driven to rotate by multiple motors (5). The lowermost conveyor belt (3) extends through the discharge port (102) to the outside of the box (1). The rotation directions of two adjacent conveyor belts (3) are opposite. The motor (5) is electrically connected to the controller (12).

3. The heating box for activated carbon production according to claim 1, characterized in that: An inclined guide plate (9) is fixed on the inner wall of the box (1) and between two adjacent conveyor belts (3).

4. The heating box for activated carbon production according to claim 1, characterized in that: The hot air assembly (7) includes a fan (71) fixed to the upper surface of the housing (1), and the exhaust port of the fan (71) is fixedly connected to a duct (72). The other end of the duct (72) is connected to the air inlet hood (6). A heating tube (73) is fixed in the middle of the duct (72). An electric heating wire is fixed inside the heating tube (73). The electric heating wire and the fan (71) are both electrically connected to the controller (12).

5. A heating box for activated carbon production according to claim 1, characterized in that: The air outlet (8) is equipped with a dustproof net.

6. The heating box for activated carbon production according to claim 1, characterized in that: The hot water assembly (11) includes several thin tubes (111) horizontally arranged inside the U-shaped plate (10). Both ends of the thin tubes (111) are fixedly connected to side tubes (112). The middle parts of the two side tubes (112) are respectively fixedly connected to an inlet pipe (113) and an outlet pipe (114). The inlet pipe (113) and the outlet pipe (114) both extend to the outside of the U-shaped plate (10).

7. The heating box for activated carbon production according to claim 1, characterized in that: Multiple casters (2) are fixed to the lower surface of the housing (1).