A high-temperature calcining device for non-hazardous treatment of waste aluminum ash

Abstract

The utility model discloses a kind of high-temperature calcining equipment for waste aluminum ash harmless treatment, it is related to aluminum ash calcining processing technical field.The utility model includes calcining furnace component and furnace bin support component, calcining furnace component includes furnace bin and fire spouting platform, furnace bin support component includes support frame and front door, furnace bin is rotationally installed in support frame, front door is hinged in support frame one side end face, one group of material turning plate is fixed in the circumferential array of furnace bin inner wall, fire spouting platform is set in furnace bin and upper end is triangular top structure, and smoke exhaust pipe in the side of front door is equipped with flue gas detection assembly.The utility model is rotated by furnace bin and makes material turning plate bring waste aluminum ash to the upper end of fire spouting platform, waste aluminum ash falls and falls to furnace bin bottom along triangular top to be turned over, so that waste aluminum ash is fully turned over and is fully calcined;Whether combustion in furnace bin is sufficient is judged by observing flue gas detection assembly, and combustion temperature is adjusted according to flue gas detection, control smoke exhaust pipe is closed, prevent toxic gas is discharged.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum ash calcination treatment technology, and in particular relates to a high-temperature calcination device for the harmless treatment of waste aluminum ash. Background Technology

[0002] Waste aluminum ash mainly originates from aluminum smelting, processing, or recycling processes. It may contain aluminum nitride, other heavy metal salts, and unreacted metallic aluminum. Among these components, aluminum nitride hydrolyzes in water to generate ammonia, causing environmental pollution. Fluorides and heavy metals may seep into soil or water bodies, harming the ecosystem and human health. Therefore, high-temperature calcination is necessary to render the harmful components harmless. However, when using a rotary kiln to calcine waste aluminum ash, the ash cannot be fully turned over during rotation, preventing the accumulated ash from undergoing complete calcination and the release of generated gases. This results in toxic substances remaining in the calcined ash pile. Furthermore, during the calcination process, insufficient calcination of damp waste aluminum ash can release ammonia, and the inability to determine whether calcination is complete during the process can lead to ammonia release and environmental pollution.

[0003] To address these issues, we provide a high-temperature calcination device for the harmless treatment of waste aluminum ash. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature calcination device for the harmless treatment of waste aluminum ash. The device is mounted in a rotating furnace chamber within a support frame, and a blower is installed inside the chamber with the blower end facing downwards. The upper end of the blower is designed as a gradually converging triangular apex structure. When the furnace chamber rotates and the tipping plate brings the waste aluminum ash to the upper end of the blower, the ash falls onto the triangular apex and then down to the bottom of the furnace chamber, where it is turned over and calcined by the downward-facing blower. This ensures the waste aluminum ash is thoroughly turned over and calcined. A flue gas detection component is installed in the exhaust pipe on the front door. The component determines whether combustion in the furnace chamber is complete and adjusts the combustion temperature accordingly. The exhaust pipe is also closed to prevent the release of toxic gases.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-temperature calcination device for the harmless treatment of waste aluminum ash, comprising a calcination furnace component and a furnace chamber support component. The calcination furnace component includes a furnace chamber and a flame burner. The furnace chamber support component includes a support frame, a front door, and a rear cover plate. The furnace chamber is a cylindrical structure with one end closed and the other end open. The furnace chamber is rotatably installed inside the support frame, and the rotation direction of the furnace chamber is parallel to the horizontal plane. The rear cover plate is fixedly installed on the side face of the support frame near the closed end of the furnace chamber. The front door is hinged to the side face of the support frame near the open end of the furnace chamber. A set of material-turning plates are fixedly arranged in a circumferential array on the inner wall of the furnace chamber, and the surface of the material-turning plates is perpendicular to the inner wall of the furnace chamber. The flame burner is located inside the furnace chamber, and the flame direction of the flame burner is downward. The upper part of the flame burner is a gradually converging triangular apex structure. A flue gas pipe is connected and installed on the side of the front door away from the support frame, and a flue gas detection component is installed in the flue gas pipe.

[0007] A further feature of this invention is that one end of the flamethrower is connected to a fuel pipe, which passes through the closed end of the furnace chamber and the rear cover plate.

[0008] A further feature of this invention is that a sleeve is fixedly provided on the outside of the closed end of the furnace chamber, the fuel pipe is sleeved inside the sleeve, the sleeve penetrates the rear cover plate, and the sleeve is connected to the output shaft of the motor via a sleeve belt.

[0009] A further feature of this invention is that a set of adapter seats are fixedly arranged in a circumferential array at both ends of the inner wall of the support frame, and adapter rollers are rotatably installed between each adapter seat at both ends of the support frame, with the adapter rollers adhering to the surface of the furnace chamber.

[0010] A further feature of this invention is that the flue gas detection assembly includes a reagent sponge ring and a transparent cover, an observation window is provided on the side wall of the exhaust pipe, the reagent sponge ring is fitted inside the transparent cover, the reagent sponge ring absorbs phenolphthalein solution reagent, and the transparent cover is fitted inside the observation window.

[0011] A further feature of this invention is that an end hoop is fixedly fitted to the opening end of the furnace hopper, and an adapter plate is rotatably installed on the side panel of the front door near the support frame, with a sealing rubber ring fixedly installed at the end of the adapter plate near the support frame.

[0012] A further feature of this invention is that a vent pipe is connected to the side of the adapter plate near the front door, and an adapter ring is rotatably sleeved on the outside of the vent pipe. The adapter ring passes through the front door, and the vent pipe is connected to the smoke exhaust pipe.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model is installed in a rotating frame within a furnace chamber, with a flame platform installed inside the furnace chamber. The flame-emitting end of the flame platform faces downwards, and the upper end of the flame platform is set as a gradually converging triangular apex structure. When the furnace chamber rotates and the tipping plate rotates the waste aluminum ash to the upper end of the flame platform, the waste aluminum ash falls onto the triangular apex of the flame platform, and then falls along the triangular apex to the bottom of the furnace chamber, where it is turned over and calcined by the downward-facing flame platform, so that the waste aluminum ash is fully turned over and fully calcined.

[0015] 2. This utility model installs a flue gas detection component inside the exhaust pipe on the front door. The flue gas detection component determines whether the combustion in the furnace is complete, adjusts the combustion temperature based on the flue gas detection, and controls the exhaust pipe to close to prevent toxic gases from being discharged.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the 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.

[0018] Figure 1 This is a schematic diagram of a high-temperature calcination device for the harmless treatment of waste aluminum ash.

[0019] Figure 2 This is a front view of a component of the calcining furnace.

[0020] Figure 3 This is an exploded view of the calcining furnace components and the rear cover plate.

[0021] Figure 4 This is an exploded view of the support frame and furnace hopper.

[0022] Figure 5 This is an exploded view of the front door and the smoke detection assembly.

[0023] Figure 6 This is a breakdown diagram of the front door and the furnace compartment.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Calcination furnace components, 101-Furnace chamber, 101a-Tilting plate, 101b-Sleeve pipe, 101c-End clamp ring, 102-Burning platform, 102a-Fuel pipe, 2-Furnace chamber support components, 201-Support frame, 201a-Transfer seat, 201a-1-Transfer roller, 202-Front door, 202a-Exhaust pipe, 202a-1-Observation window, 202b-Flue gas detection component, 202b-1-Reagent sponge ring, 202b-2-Transparent cover, 202c-Transfer plate, 202c-1-Ventilation pipe, 202c-2-Transfer ring, 203-Rear cover plate. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Please see Figures 1 to 4 This utility model relates to a high-temperature calcination device for the harmless treatment of waste aluminum ash, comprising a calcination furnace component 1 and a furnace chamber support component 2. The calcination furnace component 1 includes a furnace chamber 101 and a burner platform 102. The furnace chamber support component 2 includes a support frame 201, a front door 202, and a rear cover plate 203. The furnace chamber 101 of the calcination furnace component 1 is rotatably mounted within the support frame 201 of the furnace chamber support component 2. The burner platform 102 is installed inside the furnace chamber 101 with its flame-emitting end facing downwards. The upper end of the burner platform 102 is configured as a gradually converging triangular apex structure. The furnace chamber 101 rotates... When the tipping plate 101a rotates the waste aluminum ash to the upper end of the flame platform 102, the waste aluminum ash falls onto the triangular apex of the flame platform 102, and then falls along the triangular apex to the bottom of the furnace chamber 101, where it is turned over and calcined by the downward-facing flame platform 102, ensuring that the waste aluminum ash is fully turned over and fully calcined. By installing a flue gas detection component 202b in the exhaust pipe 202a installed on the front door 202, the combustion in the furnace chamber 101 is judged based on the flue gas detection component 202b, and the combustion temperature is adjusted according to the flue gas detection, and the exhaust pipe 202a is closed to prevent toxic gases from being discharged.

[0029] Specifically, the furnace chamber 101 is a cylindrical structure with one end closed and the other end open. The furnace chamber 101 is rotatably installed inside the support frame 201, and the rotation direction of the furnace chamber 101 is parallel to the horizontal plane. The rear cover plate 203 is fixedly installed on the side end face of the support frame 201 near the closed end of the furnace chamber 101. The front door 202 is hinged to the side end face of the support frame 201 near the open end of the furnace chamber 101. A set of material-turning plates 101a are fixedly arranged in a circumferential array on the inner wall of the furnace chamber 101. The surface of the material-turning plates 101a is perpendicular to the inner wall of the furnace chamber 101. The flame-blowing platform 102 is set inside the furnace chamber 101. The flame-blowing direction of the flame-blowing platform 102 is downward, and the upper end of the flame-blowing platform 102 is a gradually converging triangular apex structure. The side of the front door 202 away from the support frame 201 is connected to and installed with a flue pipe 202a. A flue gas detection component 202b is installed inside the flue pipe 202a.

[0030] Furthermore, one end of the flamethrower 102 is connected to a fuel pipe 102a, which passes through the closed end of the furnace chamber 101 and the rear cover plate 203, and fuel is supplied to the flamethrower 102 through the fuel pipe 102a.

[0031] Furthermore, a sleeve pipe 101b is fixedly provided on the outer side of the closed end of the furnace chamber 101, and the fuel pipe 102a is sleeved in the sleeve pipe 101b. The sleeve pipe 101b passes through the rear cover plate 203 and is connected to the output shaft of the motor via a sleeve belt.

[0032] Furthermore, a set of adapter seats 201a are fixedly arranged in a circumferential array at both ends of the inner wall of the support frame 201. An adapter roller 201a-1 is rotatably installed between each adapter seat 201a at both ends of the support frame 201. The adapter roller 201a-1 is attached to the surface of the furnace chamber 101, thereby reducing the friction force when the furnace chamber 101 rotates.

[0033] The operation process in this embodiment is as follows:

[0034] Open the front door 202 and pour the waste aluminum ash to be calcined into the furnace 101 from the opening end of the furnace 101. Close the front door 202 and start the motor to drive the furnace 101 to rotate. During the rotation of the furnace 101, the tipping plate 101a rotates the waste aluminum ash to the upper end of the flame platform 102. The waste aluminum ash falls onto the triangular apex of the flame platform 102 and then falls along the triangular apex to the bottom of the furnace 101, where it is turned over and calcined by the downward flame platform 102, so that the waste aluminum ash is fully turned over and fully calcined.

[0035] Example 2

[0036] Please see Figures 1 to 6Based on Example 1, the flue gas detection component 202b includes a reagent sponge ring 202b-1 and a transparent cover 202b-2. The flue gas produced by combustion reacts with the reagent in the reagent sponge ring 202b-1 to produce a color change, thereby determining whether ammonia is present in the flue gas and whether the combustion is complete.

[0037] Specifically, an observation window 202a-1 is provided on the side wall of the exhaust pipe 202a, a reagent sponge ring 202b-1 is fitted inside the transparent cover 202b-2, the reagent sponge ring 202b-1 absorbs phenolphthalein solution reagent, and the transparent cover 202b-2 is fitted inside the observation window 202a-1.

[0038] Furthermore, an end hoop 101c is fixedly sleeved at the open end of the furnace chamber 101, and an adapter plate 202c is rotatably installed on the side panel of the front door 202 near the support frame 201. A sealing rubber ring is fixedly installed at one end of the adapter plate 202c near the support frame 201 to seal the open end of the furnace chamber 101.

[0039] Furthermore, the side of the adapter plate 202c near the front door 202 is connected to a vent pipe 202c-1. A vent ring 202c-2 is rotatably sleeved on the outside of the vent pipe 202c-1. The vent ring 202c-2 passes through the front door 202. The vent pipe 202c-1 is connected to the exhaust pipe 202a. Smoke enters the exhaust pipe 202a from the vent pipe 202c-1 and reacts with the smoke detection component in the observation window 202a-1 on one side of the exhaust pipe 202a.

[0040] The operation process in this embodiment is as follows:

[0041] When the calcining furnace component 1 is started, the generated flue gas is discharged from the vent pipe 202c-1 and enters the flue gas pipe 202a. It reacts with the flue gas detection component in the observation window 202a-1 on one side of the flue gas pipe 202a. The color of the reagent sponge ring 202b-1 in the transparent cover 202b-2 is observed through the window 202a-1. The flue gas containing ammonia reacts with the phenolphthalein reagent in the reagent sponge ring 202b-1 and turns red. The presence of ammonia in the flue gas is determined based on the color change of the reagent sponge ring 202b-1. The combustion temperature is adjusted according to the flue gas detection, and the flue gas pipe 202a is closed to prevent toxic gases from being discharged.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A high-temperature calcination device for the harmless treatment of waste aluminum ash, comprising a calcination furnace component (1) and a furnace support component (2), characterized in that: The calcining furnace component (1) includes a furnace chamber (101) and a flame burner (102). The furnace chamber support component (2) includes a support frame (201), a front door (202), and a rear cover plate (203). The furnace chamber (101) is a cylindrical structure with one end closed and the other end open. The furnace chamber (101) is rotatably installed inside the support frame (201). The rotation direction of the furnace chamber (101) is parallel to the horizontal plane. The rear cover plate (203) is fixedly installed on the side face of the support frame (201) near the closed end of the furnace chamber (101). The front door (202) is hinged to the support frame (201) near the closed end of the furnace chamber (101). On one end face near the opening of the furnace chamber (101), a set of turning plates (101a) are fixedly arranged in a circumferential array on the inner wall of the furnace chamber (101). The plate surface of the turning plate (101a) is perpendicular to the inner wall of the furnace chamber (101). The flame-spraying platform (102) is set inside the furnace chamber (101). The flame-spraying direction of the flame-spraying platform (102) is downward and the upper end of the flame-spraying platform (102) is a gradually converging triangular top structure. The side of the front door (202) away from the support frame (201) is connected to the exhaust pipe (202a). The exhaust pipe (202a) is equipped with a flue gas detection component (202b).

2. The high-temperature calcination equipment for the harmless treatment of waste aluminum ash according to claim 1, characterized in that: One end of the flamethrower (102) is connected to a fuel pipe (102a), which passes through the closed end of the furnace chamber (101) and the rear cover plate (203).

3. The high-temperature calcination equipment for the harmless treatment of waste aluminum ash according to claim 2, characterized in that: A sleeve pipe (101b) is fixed on the outside of the closed end of the furnace chamber (101). The fuel pipe (102a) is sleeved in the sleeve pipe (101b). The sleeve pipe (101b) passes through the rear cover plate (203). The sleeve pipe (101b) is connected to the output shaft of the motor through a sleeve belt.

4. The high-temperature calcination equipment for the harmless treatment of waste aluminum ash according to claim 3, characterized in that: A set of adapter seats (201a) are fixedly arranged in a circumferential array at both ends of the inner wall of the support frame (201). An adapter roller (201a-1) is rotatably installed between each adapter seat (201a) at both ends of the support frame (201). The adapter roller (201a-1) is attached to the surface of the furnace chamber (101).

5. The high-temperature calcination equipment for the harmless treatment of waste aluminum ash according to claim 1, characterized in that: The flue gas detection component (202b) includes a reagent sponge ring (202b-1) and a transparent cover (202b-2). The side wall of the exhaust pipe (202a) is provided with an observation window (202a-1). The reagent sponge ring (202b-1) is fitted inside the transparent cover (202b-2), and the transparent cover (202b-2) is fitted inside the observation window (202a-1).

6. The high-temperature calcination equipment for the harmless treatment of waste aluminum ash according to claim 5, characterized in that: The furnace hopper (101) has an end hoop (101c) fixedly fitted at the open end. The front door (202) has a transition plate (202c) rotatably installed on the side panel near the support frame (201). A sealing rubber ring is fixedly installed on one end of the transition plate (202c) near the support frame (201).

7. The high-temperature calcination equipment for the harmless treatment of waste aluminum ash according to claim 6, characterized in that: The adapter plate (202c) is connected to a vent pipe (202c-1) on the side near the front door (202). An adapter ring (202c-2) is rotatably sleeved on the outside of the vent pipe (202c-1). The adapter ring (202c-2) passes through the front door (202). The vent pipe (202c-1) is connected to the smoke exhaust pipe (202a).

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