Composite waste incineration fly ash chelating agent vibration extraction equipment

Abstract

This utility model relates to the technical field of waste incineration fly ash treatment equipment, specifically disclosing a composite waste incineration fly ash chelating agent vibration extraction device, comprising: a reaction vessel body, which adopts a double-layer sealed structure, the inner layer being made of corrosion-resistant material and the outer layer being a heat insulation layer; a sealed top cover is fitted onto the top of the reaction vessel body, and a discharge port is provided at the bottom of the reaction vessel body. In this composite waste incineration fly ash chelating agent vibration extraction device, a vibration motor drives a transfer plate to rotate. Two spiral stirring blades symmetrically arranged at the bottom of the transfer plate are parallel to the stirring rod and have a spiral structure. During rotation, they can generate axial thrust. Combined with the guiding groove of the flow-guiding stirring blades and the circulation effect of the inner wall, the material can be stirred in three-dimensional space within the reaction vessel. Simultaneously, a conical baffle is arranged perpendicularly to the stirring rod, and combined with the conical structure at the bottom of the reaction vessel body, it can diffuse the bottom material to the surroundings and guide it upwards, forming convection.

Description

Technical Field

[0001] This utility model relates to the technical field of waste incineration fly ash treatment equipment, specifically a composite waste incineration fly ash chelating agent vibration extraction equipment. Background Technology

[0002] Fly ash from waste incineration is a fine particulate matter produced during the incineration process. It contains a large amount of heavy metals and toxic and harmful substances such as dioxins. If not properly treated, these pollutants may enter the ecosystem through soil, water bodies, and other pathways, posing a serious threat to the environment and human health. Currently, the mainstream treatment technology for fly ash includes stabilization. Among them, chelation stabilization is widely used due to its simple operation and high efficiency. This technology adds chelating agents to fly ash to cause it to coordinate with heavy metals, forming chelates with low solubility and low migration, thereby reducing the toxicity of heavy metals.

[0003] Traditional mixing equipment makes it difficult to achieve sufficient contact between chelating agents and fly ash, resulting in some heavy metals not being effectively fixed. In addition, the shear force of conventional mixing is limited, and the reaction rate between chelating agents and heavy metals is slow, requiring extended treatment time or increased reagent dosage, which increases treatment costs. Utility Model Content

[0004] The purpose of this invention is to provide a composite waste incineration fly ash chelating agent vibration extraction device to solve the problems mentioned in the background art, such as the difficulty of achieving sufficient contact between the chelating agent and fly ash with the conventional stirring equipment, resulting in some heavy metals not being effectively fixed, and the limited shear force of conventional stirring, which leads to a slow reaction rate between the chelating agent and heavy metals, requiring extended processing time or increased reagent dosage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite waste incineration fly ash chelating agent vibration extraction device, including a reaction vessel body, which adopts a double-layer sealing structure, the inner layer is made of corrosion-resistant material and the outer layer is a heat insulation layer, the top of the reaction vessel body is fitted with a sealing top cover, and the bottom of the reaction vessel body is provided with a discharge port;

[0006] The outer wall of the reactor body is fitted with a support base, and the top of the sealed top cover is provided with a fly ash feed pipe and a chelating agent feed pipe, which are symmetrically arranged. The sealed top cover is penetrated by a vibrating motor.

[0007] The output end of the oscillating motor is equipped with an adapter plate, and two spiral stirring blades are symmetrically rotatably connected to the bottom of the adapter plate. The bottom of the spiral stirring blades is rotatably connected to the upper end of the guide stirring blade, and the guide stirring blade is above the conical baffle. The conical baffle is sleeved and installed at the bottom of the stirring rod, and the top of the stirring rod is installed at the bottom of the adapter plate.

[0008] By adopting the above technical solution, the coordinated design of components such as the oscillating motor, transfer plate, spiral stirring blade, guide stirring wing, and conical baffle can achieve three-dimensional spatial mixing of fly ash and chelating agent, improve mixing uniformity, and increase the efficiency of heavy metal fixation.

[0009] Preferably, the bottom of the reactor body is a conical structure, and a sealing element is provided at the connection between the top of the reactor body and the sealing top cover.

[0010] By adopting the above technical solution, the conical structure at the bottom of the reactor body, combined with the conical baffle, can effectively prevent materials from accumulating at the bottom, promote the upward movement of materials to form convection, and enhance the mixing effect.

[0011] Preferably, both the fly ash feed pipe and the chelating agent feed pipe are equipped with metering valves, and the fly ash feed pipe and the chelating agent feed pipe are arranged symmetrically.

[0012] By adopting the above technical solution, the metering valves on the fly ash feed pipe and the chelating agent feed pipe can accurately control the feed amount of the two materials, ensuring that they are mixed in a preset ratio and avoiding waste of the reagents.

[0013] Preferably, the upper end of the adapter plate is set as an inclined surface, and the adapter plate is arranged parallel to the conical spoiler.

[0014] By adopting the above technical solution, the inclined surface at the upper end of the transfer plate can change the direction of force on the material during rotation, thereby enhancing the horizontal diffusion of the material.

[0015] Preferably, the spiral stirring blades and the stirring rod are arranged in parallel, and the spiral stirring blades have a spiral structure.

[0016] Using the above technical solution, the spiral stirring blades are parallel to the stirring rod and have a spiral structure. When rotating, they can generate axial thrust, which drives the material to make three-dimensional movements in the reactor.

[0017] Preferably, the upper end of the flow-guiding stirring blade is provided with two grooves, and the grooves rotate with the bottom plate of the spiral stirring blade.

[0018] Using the above technical solution, the groove at the upper end of the flow-guiding stirring blade is rotatably connected to the bottom plate of the spiral stirring blade, which provides rotation guidance for the spiral stirring blade while changing the flow path of the material near the inner wall of the reactor to form a specific circulation.

[0019] Preferably, the conical baffle is arranged perpendicular to the stirring rod.

[0020] Using the above technical solution, when the spiral stirring blades drive the material downward, the material is diffused in all directions and guided upward, forming convection with the material lifted by the spiral stirring blades.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the composite waste incineration fly ash chelating agent vibration extraction equipment:

[0022] 1. The oscillating motor drives the transfer plate to rotate. Two spiral stirring blades symmetrically arranged at the bottom of the transfer plate are parallel to the stirring rod and have a spiral structure. When rotating, they can generate axial thrust. Combined with the groove guidance of the flow-guiding stirring blade and the circulation effect of the inner wall, the material can be stirred in three-dimensional space in the reactor. At the same time, the conical baffle is set vertically to the stirring rod. Combined with the conical structure at the bottom of the reactor body, it can diffuse the material at the bottom to the surroundings and guide it to move upward, forming convection. This allows the fly ash and the composite chelating agent to achieve full contact in all directions without dead angles in the reactor, effectively avoiding uneven local mixing, greatly improving the binding rate of heavy metals and chelating agents, and ensuring that heavy metals are fully fixed.

[0023] 2. Powered by an oscillating motor, the spiral stirring blades rotate at high speed. The special structure of the spiral blades generates a strong shearing effect on the material during rotation. At the same time, the guide stirring blades and conical baffles change the material flow path, increasing the frequency and intensity of collisions between materials. Through the enhanced shearing and collision effects, the reaction rate of chelating agents and heavy metals is significantly improved.

[0024] 3. The material ratio can be strictly controlled in the fly ash feed pipe and chelating agent feed pipe to avoid excessive use of reagents. The double-layer sealing structure of the reactor body features an inner corrosion-resistant material that extends the equipment's service life, and an outer insulation layer that reduces heat loss and lowers energy costs. Through these optimizations, this equipment achieves efficient fly ash treatment while reducing processing costs, significantly improving both economic and environmental benefits. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall internal side section of the present invention.

[0027] Figure 3 This is a three-dimensional structural diagram of the installation position of the reaction vessel body and the transfer plate of this utility model;

[0028] Figure 4 A three-dimensional structural diagram of the spiral stirring blades and stirring rod of this utility model;

[0029] Figure 5 A three-dimensional structural diagram showing the installation of the adapter plate, spiral stirring blades, and stirring rod of this utility model;

[0030] Figure 6 This is a schematic diagram showing the installation position of the spiral stirring blades and stirring rod of this utility model.

[0031] In the diagram: 1. Reactor body; 2. Support base; 3. Sealed top cover; 4. Discharge port; 5. Fly ash feed pipe; 6. Chelating agent feed pipe; 7. Vibrating motor; 8. Transfer plate; 9. Spiral stirring blades; 10. Stirring rod; 11. Guide stirring blades; 12. Conical baffle. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1-6 This utility model provides a technical solution: a composite waste incineration fly ash chelating agent vibration extraction device, including a reaction vessel body 1, a support base 2, a sealed top cover 3, a discharge port 4, a fly ash feed pipe 5, a chelating agent feed pipe 6, a vibration motor 7, a transfer plate 8, a spiral stirring blade 9, a stirring rod 10, a flow guiding stirring wing 11, and a conical baffle 12.

[0034] Among them, the reactor body 1 adopts a double-layer sealing structure, the inner layer is made of corrosion-resistant material, the outer layer is a heat insulation layer, the top of the reactor body 1 is fitted with a sealing top cover 3, and the bottom of the reactor body 1 is provided with a discharge port 4.

[0035] The outer wall of the reactor body 1 is fitted with a support base 2. The top of the sealed top cover 3 is provided with a fly ash feed pipe 5 and a chelating agent feed pipe 6, which are symmetrically arranged. The sealed top cover 3 is penetrated by a vibrating motor 7. The bottom of the reactor body 1 is a conical structure, and a sealing element is provided at the connection between the top of the reactor body 1 and the sealed top cover 3. Metering valves are provided on both the fly ash feed pipe 5 and the chelating agent feed pipe 6, which are symmetrically arranged. The upper end of the transfer plate 8 is set as an inclined surface, and the transfer plate 8 is parallel to the conical baffle 12.

[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the reactor body 1 is hoisted onto the support base 2, ensuring that the reactor body 1 and the mounting holes of the support base 2 are aligned and fastened with high-strength bolts. A sealing top cover 3 is installed on the top of the reactor body 1, and a sealing element is embedded at the connection between the sealing top cover 3 and the reactor body 1 to ensure a sealing effect. The fly ash feed pipe 5 and the chelating agent feed pipe 6 are respectively installed at the preset interface on the top of the sealing top cover 3. When connecting, sealing tape is used to wrap the interface to prevent leakage, and a metering valve is installed.

[0037] Install the oscillating motor 7 in the through hole position reserved in the sealing top cover 3, ensuring that the motor axis is perpendicular to the sealing top cover 3. Install the adapter plate 8 at the output end of the oscillating motor 7 and ensure stable transmission by key connection or bolt fixation. Fix the top end of the stirring rod 10 to the bottom end of the adapter plate 8. Install the spiral stirring blade 9, the guide stirring wing 11 and the conical baffle 12 on the stirring rod 10 in sequence. Connect the power cords of the oscillating motor 7, the metering valve and other equipment, ensuring that the wiring is correct and secure, and grounding protection is provided.

[0038] An adapter plate 8 is installed at the output end of the oscillating motor 7, and two spiral stirring blades 9 are symmetrically rotatably connected to the bottom end of the adapter plate 8. The bottom end of the spiral stirring blades 9 is rotatably connected to the upper end of the guide stirring blade 11, and the guide stirring blade 11 is above the conical baffle 12. The conical baffle 12 is sleeved and installed at the bottom end of the stirring rod 10, and the top end of the stirring rod 10 is installed at the bottom end of the adapter plate 8. The spiral stirring blades 9 and the stirring rod 10 are arranged in parallel, and the spiral stirring blades 9 have a spiral structure. Two grooves are provided at the upper end of the guide stirring blade 11, and the grooves rotate with the bottom plate of the spiral stirring blades 9. The conical baffle 12 is arranged perpendicular to the stirring rod 10.

[0039] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, fly ash and composite chelating agent enter the reactor body 1 through fly ash feed pipe 5 and chelating agent feed pipe 6, respectively. After the oscillating motor 7 is started, its output end drives the transfer plate 8 to rotate. The inclined surface at the upper end of the transfer plate 8 changes the direction of force on the material, enhancing horizontal diffusion. When the spiral stirring blade 9 at the bottom rotates, it generates axial thrust by means of the spiral structure and the parallel setting of the stirring rod 10, realizing the three-dimensional movement of the material. The spiral stirring blade 9 is rotatably connected to the guide stirring blade 11. The groove on the guide stirring blade 11 guides and changes the material flow path, filling the mixing blind area on the inner wall. The conical baffle 12 at the bottom of the stirring rod 10, in conjunction with the conical structure at the bottom of the reactor body 1, diffuses and guides the material to form convection, enhancing the mixing effect and allowing the chelating agent and fly ash to fully contact and fix the heavy metals.

[0040] The reactor body 1 has a double-layer sealing structure. The inner layer is made of corrosion-resistant material to resist erosion, and the outer layer is made of heat insulation layer to maintain temperature stability. The sealing top cover 3 and the reactor body 1 are connected by a seal to prevent the leakage of harmful gases. The external control system monitors and adjusts various parameters in real time to ensure stable and efficient operation of the equipment and achieve safe and environmentally friendly treatment of fly ash from waste incineration.

[0041] Working principle: When using this composite waste incineration fly ash chelating agent vibration extraction equipment, the waste incineration fly ash and composite chelating agent enter the reactor body 1 through the fly ash feed pipe 5 and the chelating agent feed pipe 6 respectively. The metering valves on the two feed pipes accurately control the feed amount to ensure that the two enter the reactor in a preset ratio, avoiding imbalance of ratio that affects the treatment effect. At the same time, the feed pipes symmetrically set at the top of the sealed top cover 3 can initially disperse the material when it enters.

[0042] After the oscillating motor 7 is started, it drives the spiral stirring blade 9 to rotate through the transfer plate 8 to achieve eccentric rotation stirring. The inclined surface design at the upper end of the transfer plate 8 changes the direction of the material force and enhances its horizontal diffusion. The spiral stirring blade 9, with its spiral structure and the axial thrust generated by the parallel arrangement of the stirring rod 10, realizes the three-dimensional movement of the material in the reactor. The spiral stirring blade 9 is rotatably connected to the guide stirring blade 11. The groove on the guide stirring blade 11 guides the blade and changes the material flow path, filling the mixing blind area on the inner wall of the reactor. The conical baffle 12 at the bottom of the stirring rod 10 is in conjunction with the conical structure at the bottom of the reactor body 1.

[0043] As the material moves downwards, it is diffused and guided upwards, forming convection. This allows the fly ash to come into full contact with the chelating agent, completing the coordination and fixation reaction of heavy metals. The double-layer sealing structure of the reactor body 1 plays a crucial role. The inner layer is made of corrosion-resistant material to resist erosion, while the outer layer is made of heat-insulating material to maintain temperature stability. The seal at the connection between the sealed top cover 3 and the reactor body 1 prevents the leakage of harmful gases. The external control system monitors various parameters in the reaction process in real time and adjusts them promptly based on feedback to ensure stable and efficient operation of the equipment. Ultimately, this achieves safe and environmentally friendly treatment of waste incineration fly ash, increasing the overall practicality.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite waste incineration fly ash chelating agent vibration extraction device, comprising: The reactor body (1) adopts a double-layer sealing structure. The inner layer is made of corrosion-resistant material and the outer layer is a heat insulation layer. The top of the reactor body (1) is fitted with a sealing top cover (3) and the bottom of the reactor body (1) is provided with a discharge port (4). The features are as follows: the outer wall of the reactor body (1) is fitted with a support base (2), the top of the sealing top cover (3) is provided with a fly ash feed pipe (5) and a chelating agent feed pipe (6), and the fly ash feed pipe (5) and the chelating agent feed pipe (6) are symmetrically arranged, and the sealing top cover (3) is penetrated by an oscillating motor (7); The output end of the oscillating motor (7) is equipped with a transfer plate (8), and the bottom end of the transfer plate (8) is symmetrically connected to two spiral stirring blades (9). The bottom end of the spiral stirring blades (9) is rotatably connected to the upper end of the guide stirring blade (11), and the guide stirring blade (11) is above the conical baffle (12). The conical baffle (12) is sleeved and installed at the bottom end of the stirring rod (10), and the top end of the stirring rod (10) is installed at the bottom end of the transfer plate (8).

2. The composite type waste incineration fly ash chelating agent oscillation extraction apparatus according to claim 1, characterized by: The bottom of the reactor body (1) is a conical structure, and a sealing element is provided at the connection between the top of the reactor body (1) and the sealing top cover (3).

3. The composite type waste incineration fly ash chelating agent oscillation extraction apparatus according to claim 1, characterized by: Metering valves are provided on both the fly ash feed pipe (5) and the chelating agent feed pipe (6), and the fly ash feed pipe (5) and the chelating agent feed pipe (6) are arranged symmetrically.

4. The composite waste incineration fly ash chelating agent oscillation extraction device according to claim 1, characterized in that: The upper end of the adapter plate (8) is set as an inclined surface, and the adapter plate (8) is set parallel to the conical spoiler (12).

5. The composite waste incineration fly ash chelating agent vibration extraction device according to claim 1, characterized in that: The spiral stirring blade (9) and the stirring rod (10) are arranged in parallel, and the spiral stirring blade (9) has a spiral structure.

6. The composite waste incineration fly ash chelating agent vibration extraction device according to claim 1, characterized in that: The upper end of the flow-guiding stirring blade (11) is provided with two grooves, and the grooves rotate with the bottom plate of the spiral stirring blade (9).

7. The composite waste incineration fly ash chelating agent vibration extraction device according to claim 1, characterized in that: The conical baffle (12) is arranged perpendicular to the stirring rod (10).

Images