Electromagnetic particle carbon roasting device

Abstract

The utility model introduces a kind of granular carbon electromagnetic roasting device, including furnace body, feed screw conveyor, screw elevator, electromagnetic heating component, check valve and discharge valve;Furnace body both sides are respectively provided with feed tank and discharge tank, and feed screw conveyor discharge port is sealingly connected with the upper end of feed tank;Screw shaft of screw elevator is vertically arranged in furnace body, and electromagnetic heating component includes solenoid and temperature sensor;Solenoid is evenly wound on the outside wall of furnace body, and temperature sensor is respectively arranged at the bottom and top of furnace body;Check valve is arranged on the exhaust port of furnace body;Discharge valve is arranged on the discharge port of the lower end of discharge tank.The vertical arrangement mode of the utility model furnace body and feed tank and discharge tank, simple structure, save space;Material realizes material seal at the bottom of feed tank, and two-stage discharge valve is arranged at the lower end of discharge tank, and the discharge end is double closed by gate valve and material, so that batch continuous production can be carried out without the filling of inert gas, which is convenient for raw material carbonization, improves roasting efficiency, and guarantees product quality.

Description

Technical Field

[0001] This utility model relates to the field of roasting equipment technology, and in particular to an electromagnetic roasting device for granular carbon. Background Technology

[0002] Due to its physical adsorption properties, granular charcoal has become a core material for environmental purification, health protection, and industrial production, and is widely used in water treatment, waste gas purification, food decolorization, and catalyst carriers. Currently, the raw materials for producing granular charcoal rely on biomass such as coal / wood and coconut shells. The roasting process requires maintaining high temperatures for a long time, especially traditional roasting of granular charcoal materials, which requires continuous heating for several hours, with energy consumption accounting for 30%-50% of the production cost. At present, the granular charcoal roasting equipment widely used in industry mainly includes rotary kilns, vertical calcining furnaces, and tunnel kilns. Although these traditional devices are widely used in production, they have a series of inherent technical shortcomings in terms of energy efficiency, product quality, process control, and environmental impact.

[0003] In traditional rotary kilns, materials are mixed by rotating the cylinder, but there are temperature gradients at the kiln head, kiln tail, center, and edges. In vertical furnaces, the hot airflow distribution of traditional heating methods is uneven, which can easily lead to uneven heating of materials in different locations. Furthermore, due to the heating method, the temperature response rate after receiving temperature feedback is too slow, which directly causes the carbonization or activation degree of the same batch of granular carbon to be inconsistent. In addition, the heat preservation performance of traditional kilns is often poor, and the surface heat loss is large. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electromagnetic roasting device for granular char, which can effectively solve the problems of large heat escape, uneven heating of materials, and precise temperature control during the preparation of granular char.

[0005] The technical solution adopted in this utility model is: An electromagnetic roasting device for granular charcoal includes a furnace body, a feeding screw conveyor, a screw elevator, an electromagnetic heating assembly, a check valve, and a discharge valve. The furnace body is equipped with a feed box and a discharge box on both sides, and an inspection door and an exhaust port on the top of the furnace body. The feed box is vertically installed on one side of the furnace body, with its lower end inclined towards the bottom of the furnace body and connected to the bottom of the furnace body. The upper end of the discharge box is connected to the upper discharge port of the furnace body, and a material level gauge is installed on the discharge box. The discharge port of the feed screw conveyor is sealed to the upper end of the feed box. The screw shaft of the screw elevator is vertically installed in the furnace body, with the lower feed end of the screw elevator corresponding to the lower outlet of the feed box, and the upper discharge end of the screw elevator corresponding to the upper port of the discharge box. The electromagnetic heating assembly includes an electromagnetic coil and a temperature sensor; the electromagnetic coil is evenly wound on the outer wall of the furnace body, and the temperature sensors are respectively set at the bottom and top of the furnace body. The check valve is located on the exhaust port of the furnace body; the discharge valve is located on the discharge port at the lower end of the discharge box.

[0006] Specifically, the feeding screw conveyor, screw elevator, electromagnetic heating assembly, check valve, discharge valve, and level gauge are all electrically connected to an external control system.

[0007] Specifically, the upper end of the spiral shaft of the spiral elevator is provided with a bearing, and the center of the inspection door is provided with a positioning groove that matches the bearing; the spiral shaft of the spiral elevator is further fixed through the inspection door.

[0008] Specifically, the discharge valve includes a pneumatic slide gate valve and an airlock flap valve arranged sequentially from top to bottom; the pneumatic slide gate valve and the airlock flap valve provide dual protection for the airtightness of the discharge box; an observation port is provided on the side wall of the discharge box above the pneumatic slide gate valve.

[0009] Specifically, the electromagnetic coil is provided with an insulation layer on the outside.

[0010] Specifically, the feed screw conveyor is equipped with a sealed shell on its outer side, and the feed screw conveyor outlet is sealed to the feed box inlet.

[0011] Due to the adoption of the technical solution described above, this utility model has the following advantages: This utility model features a vertical arrangement of the furnace body, feeding box, and discharging box, resulting in a simple structure and space-saving design. The feeding end is vertically and sealed to the feeding box via a feeding screw conveyor, achieving material sealing at the bottom of the feeding box. The lower end of the discharging box is equipped with a two-stage discharge valve, and the discharging end is doubly sealed by a gate valve and the material, creating a sealed environment to prevent heat loss. This allows for continuous batch production without the need for inert gas filling, facilitating raw material carbonization, improving roasting efficiency, and ensuring product quality. A temperature sensor monitors the internal heating temperature of the furnace body in real time, and an external control system adjusts the heating power of the electromagnetic coil. This results in faster, more uniform, and more thorough heating of the material, more precise temperature control, a fast temperature response after temperature adjustment, reduced unnecessary heat loss, and more accurate and stable heating. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0013] In the diagram: 1-furnace body, 2-inspection door, 3-feed box, 4-discharge box, 5-level gauge, 6-feed screw conveyor, 7-screw elevator, 8-electromagnetic coil, 9-temperature sensor, 10-check valve, 11-pneumatic slide gate valve, 12-airlock flap valve, 13-insulation layer, 14-observation port. Detailed Implementation

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0015] Combined with appendix Figure 1 The electromagnetic roasting device for granular charcoal shown includes a furnace body 1, a feeding screw conveyor 6, a screw elevator 7, an electromagnetic heating component, a check valve 10, a pneumatic slide valve 11, and an airlock flap valve 12.

[0016] A feed box 3 and a discharge box 4 are respectively provided on both sides of the furnace body 1. An inspection door 2 and an exhaust port are provided on the top of the furnace body 1. The feed box 3 is vertically arranged on one side of the furnace body 1, with its lower end inclined towards the bottom of the furnace body 1 and connected to the bottom of the furnace body 1. The upper end of the discharge box 4 is connected to the upper discharge port of the furnace body 1. A material level gauge 5 and an observation port 14 are provided on the discharge box 4. A sealed shell is provided on the outside of the feed screw conveyor 6, and the discharge port of the feed screw conveyor 6 is sealed to the upper end of the feed box 3. The screw shaft of the screw elevator 7 is vertically arranged inside the furnace body 1. The lower feed end of the screw elevator 7 corresponds to the lower outlet of the feed box 3, and the upper discharge end of the screw elevator 7 corresponds to the upper port of the discharge box 4. A bearing is provided at the upper end of the screw shaft of the screw elevator 7, and a positioning groove matching the bearing is provided in the center of the inspection door 2. The screw shaft of the screw elevator 7 is further fixed through the inspection door 2.

[0017] The electromagnetic heating assembly includes an electromagnetic coil 8 and a temperature sensor 9; the electromagnetic coil 8 is evenly wound on the outer wall of the furnace body 1, and an insulation layer 13 is provided outside the electromagnetic coil; the temperature sensor 9 is respectively located at the bottom and top of the furnace body 1.

[0018] The check valve 10 is installed on the exhaust port of the furnace body 1; the pneumatic slide gate valve 11 and the airlock flap valve 12 are installed from top to bottom on the lower end of the discharge box 4; the pneumatic slide gate valve 11 and the airlock flap valve 12 provide double protection for the airtightness of the discharge box 4.

[0019] Preferably, the feeding screw conveyor 6, screw elevator 7, electromagnetic heating assembly, check valve 10, pneumatic slide valve 11, airlock flap valve 12, and level gauge 5 are all electrically connected to an external control system.

[0020] During operation, the pneumatic slide gate valve 11 and the airlock flap valve 12 on the discharge box 4 are both closed. The material enters the feed box 3 through the feeding screw conveyor 6 and falls into the inclined bottom of the feed box 3. Under the action of the screw elevator 7, the material rises in the furnace body 1. The external control system controls the electromagnetic coil 8 to be energized, generating induced eddy currents inside the furnace body 1, which raises the temperature inside the furnace and heats the material inside the furnace body 1 to carbonize it. The temperature sensor 9 detects the heating temperature inside the furnace body 1. The external control system controls the speed of the screw elevator 7 and the current of the electromagnetic coil 8, thereby controlling the heating time and temperature of the material in the furnace body 1 to ensure that the material is fully carbonized. When the material accumulates in the discharge box 4, the level gauge 5 detects that the discharge amount has been reached, and the external control system controls the pneumatic slide gate valve 11 and the airlock flap valve 12 to open and discharge the material. The waste gas generated during the roasting process is discharged into the waste gas collection system through the check valve 10 at the top of the furnace body 1.

[0021] The parts of this utility model not described in detail are existing technologies.

[0022] The embodiments selected herein for the purpose of disclosing the inventive objectives of this utility model are currently considered appropriate; however, it should be understood that this utility model is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and utility model.

Claims

1. An electromagnetic roasting device for granular charcoal, characterized in that: It includes the furnace body, feeding screw conveyor, screw elevator, electromagnetic heating assembly, check valve, and discharge valve; The furnace body is provided with a feed box and a discharge box on both sides, and an inspection door and an exhaust port on the top of the furnace body. The feed box is vertically arranged on one side of the furnace body, with its lower end inclined towards the bottom of the furnace body and connected to the bottom of the furnace body. The upper end of the discharge box is connected to the upper discharge port of the furnace body, and a material level gauge is provided on the discharge box. The discharge port of the feed screw conveyor is sealed to the upper end of the feed box. The screw part of the screw elevator is vertically arranged in the furnace body, with the lower feed end of the screw elevator corresponding to the lower outlet of the feed box, and the upper discharge end of the screw elevator corresponding to the upper port of the discharge box. The electromagnetic heating assembly includes an electromagnetic coil and a temperature sensor; the electromagnetic coil is evenly wound on the outer wall of the furnace body, and the temperature sensors are respectively set at the bottom and top of the furnace body. The check valve is located on the exhaust port of the furnace body; the discharge valve is located on the discharge port at the lower end of the discharge box.

2. The electromagnetic roasting apparatus for granular carbon according to claim 1, characterized in that: The feeding screw conveyor, screw elevator, electromagnetic heating assembly, check valve, discharge valve, and level gauge are all electrically connected to an external control system.

3. The electromagnetic roasting apparatus for granular carbon according to claim 2, characterized in that: The upper end of the central shaft of the spiral elevator is provided with a bearing, and the center of the inspection door is provided with a positioning groove that matches the bearing.

4. The electromagnetic roasting apparatus for granular carbon according to claim 2, characterized in that: The discharge valve includes a pneumatic slide gate valve and an airlock flap valve arranged sequentially from top to bottom. An observation port is provided on the side wall of the discharge box on the upper side of the pneumatic slide gate valve.

5. The electromagnetic roasting apparatus for granular carbon according to claim 1, characterized in that: The electromagnetic coil is provided with an insulation layer on the outside.

6. The electromagnetic roasting apparatus for granular carbon according to claim 1, characterized in that: The feed screw conveyor is equipped with a sealed shell on its outer side, and the feed screw conveyor outlet is sealed to the feed box inlet.

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