An electric furnace device for high-temperature purification of sludge.

Abstract

An electric furnace apparatus for high-temperature purification of sludge includes a furnace body with a processing chamber inside, and at least one electrode assembly extending into the processing chamber. The furnace body has a feeding structure and a gas discharge structure at the upper part, and a molten material discharge structure at the lower part, allowing different phases of the sludge to be discharged from the upper and lower structures respectively after forming a high-temperature treatment zone within the processing chamber. The electrode assembly can consist of multiple electrodes and can be equipped with a lifting mechanism to adjust its position. The overall structure is suitable for high-temperature purification of metallic sludge.

Description

An electric furnace device for high-temperature purification of sludge. Technical Field

[0001] This invention relates to a high-temperature treatment device, particularly an electric furnace device for high-temperature purification treatment of sludge. It forms a high-temperature treatment zone by means of an electrode assembly installed in the furnace body, so that the sludge fed into the furnace body can be treated at high temperature inside the furnace body. It is combined with a molten material discharge structure and a gas outlet structure to facilitate the separate discharge of the molten phase and the volatile phase. It belongs to the technical field of high-temperature waste treatment equipment. Prior Technology

[0002] Existing high-temperature equipment for sludge treatment mostly uses resistance heating rods as heating elements. The material is indirectly heated by the furnace wall or air after the heating rods generate heat. This type of heating method has a slow heating rate, and the heating temperature is limited by the heat resistance of the heating rod material, making it difficult to form a stable high-temperature treatment zone.

[0003] When metal sludge requires high-temperature purification, higher temperatures are often necessary to enhance the treatment effect. Traditional equipment using heating rods still has limitations in terms of heating efficiency and upper temperature limits, leaving room for improvement in practical applications.

[0004] Therefore, it is necessary to provide an improved electric furnace device so that its heating structure can form a higher temperature processing zone to facilitate the high-temperature purification treatment of metal sludge. Summary of the Invention

[0005] The main objective of this invention is to provide an electric furnace device for high-temperature purification of sludge. The device directly forms a high-temperature treatment zone by means of an electrode assembly located inside the furnace body, thereby improving the problems of slow heating speed and unstable high temperature formation in the traditional indirect heating method with heating rods, so that metal sludge can be purified at high temperature in the treatment chamber.

[0006] To achieve the above objectives, the present invention provides an electric furnace apparatus comprising a furnace body having a processing chamber formed inside the furnace body; at least one electrode assembly disposed in the furnace body and extending into the processing chamber; a feeding structure communicating with the processing chamber; a molten material discharge structure disposed in the lower part of the furnace body and communicating with the processing chamber; and a gas discharge structure disposed in the upper part of the furnace body and communicating with the processing chamber.

[0007] With the above structural configuration, the electrode assembly can directly form a concentrated high-temperature treatment area in the treatment chamber, so that the sludge put in can be treated at high temperature in the high-temperature treatment area, and the molten material and volatile gas generated during the treatment process can be discharged through the molten material discharge structure and the gas discharge structure, respectively.

[0008] In this novel embodiment, the electrode assembly may include a plurality of electrodes arranged at intervals; the plurality of electrodes may be arranged in a three-phase configuration; the electrode assembly may be graphite electrodes; the electrode assembly may include a lifting mechanism to adjust its position relative to the processing chamber; the furnace body may be a sealed structure; and the gas outlet structure may be connected to a waste gas treatment device.

[0009] Based on the above description, the features and effects of this novel invention are briefly summarized as follows:

[0010] First, the high-temperature processing area is directly formed by the electrode assembly, which has better heating efficiency compared to the indirect heating method of heating rods.

[0011] Second, the electrode assembly is directly installed in the treatment chamber, allowing the sludge to be directly heated in the high-temperature area, which is beneficial for high-temperature purification treatment.

[0012] Third, by means of the gas outlet structure at the top and the melt discharge structure at the bottom, substances of different phases generated during the process can be discharged separately.

[0013] IV. The overall structural configuration is suitable for the high-temperature purification treatment of metal sludge. Simple Explanation of the Diagram

[0014]

[0015] Figure 1: A schematic diagram of the overall structure of an electric furnace device for high-temperature purification of sludge according to the present invention.

[0016] Figure 2: A cross-sectional schematic diagram of the novel electric furnace device.

[0017] Figure 3: A partial structural schematic diagram of the novel electrode assembly and its lifting mechanism. Implementation

[0018] Please refer to Figure 1, which is a schematic diagram of the overall structure of an electric furnace device for high-temperature purification of sludge according to the present invention. The electric furnace device of the present invention includes a furnace body 10, and a processing chamber 11 is formed inside the furnace body 10. The processing chamber 11 is used to accommodate the sludge to be treated and to form a high-temperature processing space.

[0019] A feeding structure 20 is provided on the upper part of the furnace body 10. The feeding structure 20 is connected to the processing chamber 11 so that sludge can be fed into the processing chamber 11. In this embodiment, the feeding structure 20 is provided on the upper part of the furnace body 10 so that the material can be fed into the processing chamber 11 from above.

[0020] At least one electrode assembly 30 is provided on the upper part of the furnace body 10. The electrode assembly 30 extends into the processing chamber 11, so that it is located in the internal space of the processing chamber 11. In this embodiment, the electrode assembly 30 can be fixed to the upper part of the furnace body 10 by an electrode fixing seat 32, so that the electrode assembly 30 can be stably extended into the processing chamber 11.

[0021] The furnace body 10 has a molten material discharge structure 40 at its lower part, which is connected to the processing chamber 11 to discharge the molten material formed during the processing. The furnace body 10 also has a gas outlet structure 50 at its upper part, which is connected to the processing chamber 11 to outlet the gas formed during the processing.

[0022] Referring again to Figure 2, the electrode assembly 30 is disposed inside the processing chamber 11, forming a high-temperature processing zone within the chamber. When sludge is fed into the processing chamber 11 via the feeding structure 20, it undergoes high-temperature processing within the high-temperature processing zone formed by the electrode assembly 30. The molten material generated during processing is discharged through the molten material discharge structure 40 located at the lower part of the processing chamber 11; while the volatile gases generated during processing are discharged through the gas outlet structure 50 located at the upper part of the processing chamber 11, allowing substances of different phases to be discharged separately.

[0023] Referring to Figure 3, in this embodiment, the electrode assembly 30 may include a plurality of electrodes, which may be spaced apart and arranged in a three-phase configuration. The electrode assembly 30 may be graphite electrodes. The electrode assembly 30 may be provided with a lifting mechanism 31, allowing the electrode assembly 30 to adjust its height relative to the processing chamber 11 to meet different processing requirements. The lifting mechanism 31 may cooperate with the electrode fixing base 32 to adjust the position of the electrode assembly 30.

[0024] Furthermore, in this embodiment, the furnace body 10 can be a sealed structure, making the processing chamber 11 a closed space to facilitate the high-temperature processing. The gas outlet structure 50 can be connected to a waste gas treatment device for subsequent gas treatment.

[0025] As shown in Figure 2, in the actual use of this novel device, after the sludge is fed into the processing chamber 11 through the feeding structure 20, the electrode assembly 30 is energized, forming a high-temperature processing zone within the processing chamber 11. The sludge is heated within this high-temperature processing zone, forming substances of different phases during the processing. The heavier molten material accumulates at the bottom of the processing chamber 11 and is discharged through the molten material discharge structure 40, while the gas generated during the processing rises and is discharged through the gas outlet structure 50. With this structural configuration, the electric furnace device can perform high-temperature purification treatment of sludge.

[0026] Under specific sludge composition and treatment conditions, the molten material after treatment may contain oxidized materials, such as alumina. However, this invention protects the structural configuration of the electric furnace device, which is not limited to a specific product composition; the actual substance obtained still depends on the sludge composition and treatment conditions.

[0027] Through the above structural configuration, this new invention has the following features and effects:

[0028] 1. The electrode assembly 30 is directly disposed in the treatment chamber 11, so that the high-temperature treatment area is formed inside the treatment chamber 11, which is beneficial to the high-temperature treatment of sludge.

[0029] 2. The molten material discharge structure 40 and the gas discharge structure 50 are respectively located in the lower and upper parts of the processing chamber 11, so that substances of different phases can be discharged separately during the processing.

[0030] Third, the electrode assembly 30 may be equipped with a lifting mechanism 31 to adjust its position relative to the processing chamber 11, thereby increasing its flexibility in use.

[0031] IV. The overall structural configuration is suitable for the high-temperature purification treatment of metal sludge.

[0032] 10: Furnace body

[0033] 11: Processing Chamber

[0034] 20: Feeding Structure

[0035] 30: Electrode assembly

[0036] 31: Lifting mechanism

[0037] 32: Electrode holder

[0038] 40: Molten material discharge structure

[0039] 50: Gas extraction structure

Claims

1. An electric furnace apparatus for high-temperature purification treatment of sludge, comprising a furnace body having a processing chamber formed inside the furnace body; at least one electrode assembly disposed on the upper part of the furnace body and extending into the processing chamber; a feeding structure disposed on the upper part of the furnace body and communicating with the processing chamber; a molten material discharge structure disposed on the lower part of the furnace body and communicating with the processing chamber; and a gas outlet structure disposed on the upper part of the furnace body and communicating with the processing chamber; characterized in that: the electrode assembly is disposed in the processing chamber so that sludge fed in through the feeding structure can directly enter the high-temperature treatment area formed by the electrode assembly, and the molten material discharge structure and the gas outlet structure are respectively disposed on the lower and upper parts of the processing chamber so that the molten phase and the volatile phase generated during the treatment process are discharged through different channels.

2. The electric furnace apparatus for high-temperature purification of sludge as described in claim 1, wherein, The electrode assembly includes a plurality of electrodes, which are spaced apart within the processing chamber.

3. The electric furnace apparatus for high-temperature purification of sludge as described in claim 2, wherein, These electrodes are arranged in a three-phase configuration.

4. The electric furnace apparatus for high-temperature purification of sludge as described in claim 1, wherein, The electrode assembly is a graphite electrode.

5. The electric furnace apparatus for high-temperature purification of sludge as described in claim 1, wherein, The electrode assembly further includes a lifting mechanism for adjusting the position of the electrode assembly relative to the processing chamber.

6. The electric furnace apparatus for high-temperature purification of sludge as described in claim 1, wherein, The furnace body has a sealed structure, making the processing chamber a closed space.

7. The electric furnace apparatus for high-temperature purification of sludge as described in claim 1, wherein, The gas outlet structure is connected to a waste gas treatment device.

8. The electric furnace apparatus for high-temperature purification of sludge as described in claim 1, wherein, The feeding structure is located on the upper part of the furnace body and communicates with the processing chamber, so that sludge can be fed into the processing chamber for high-temperature treatment.

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