Small mixing equipment for ex-situ soil remediation
By designing an extratopic soil repair equipment including mixing tanks, agitator devices and heat tracing components, the problems of insufficient separation of plastic products and inadequate reactions of the agent are solved, and cost reduction and efficiency improvement are achieved.
Patent Information
- Application Number
- CN202422260737.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The prior art is difficult to effectively separate plastic products in the repair of heavy metal-contaminated soil, resulting in high equipment costs, large area and low repair efficiency, and large soil viscosity, resulting in insufficient reaction of the agent.
A small mixed equipment for remediation of an extratopic soil is designed including a mixing tank, a stirring device, a contaminated soil feeding assembly, an industrial water feeding assembly, a stabilizing agent feeding assembly and a heat tracing assembly. The separation of plastic products is achieved through stirring and heat tracing, and the water-soluble properties are used to promote the reaction of contaminated soil and agents.
Effectively separate plastic products, reduce production costs, save land area, and improve soil restoration efficiency.
Smart Images
Figure CN223145580U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the related environmental protection fields such as soil remediation, and particularly relates to a small-scale mixing device for off-site soil remediation. Background Art
[0002] With the continuous acceleration of the urban construction level and industrial development, more and more cities relocate factories beyond the line in their planning. Among them, there are industrial lands such as chemical and printing industries. However, due to the imperfect early management technology, there will inevitably be some situations where the heavy metals in the soil exceed the standard on the former sites of the relocated factories, which will directly affect the survival of vegetation and microorganisms and even human health.
[0003] For the off-site treatment and remediation of heavy metal contaminated soil, a mixing and stirring machine is mostly used in most cases. However, during the process of using the mixer alone, sundries such as plastic products cannot be effectively separated, and equipment such as crushers and screens need to be used in combination, which increases the use cost of the equipment and the floor area of the equipment to a certain extent; secondly, due to the large viscosity of the soil, it is easy to form wrapped lumps during the mixing and stirring process, resulting in the difficulty for the remediation agent to react effectively with the wrapped soil, often causing the false "compliance" phenomenon and increasing the trouble of reprocessing. Summary of the Utility Model
[0004] The main technical problem to be solved by the utility model is to provide a small-scale mixing device for off-site soil remediation, which can effectively separate floating objects such as plastic products; reduce production costs and save floor area; and improve the soil remediation efficiency.
[0005] To solve the above technical problems, a technical solution adopted by the utility model is: to provide a small-scale mixing device for off-site soil remediation, including a mixing tank, a stirring device, a contaminated soil feeding component, an industrial water feeding component, a stabilizer feeding component, and a heat tracing component. The mixing tank is arranged in a hollow open circular conical hopper structure. The top of the mixing tank is correspondingly arranged with the discharge ports of the contaminated soil feeding component, the industrial water feeding component, and the stabilizer feeding component. A discharge door is arranged at the bottom of the mixing tank. The stirring device is longitudinally fixed in the middle of the top of the mixing tank and the stirring part is located inside the mixing tank. The heat tracing component is fixed on the outer side wall of the mixing tank.
[0006] In a preferred embodiment of the utility model, the outer side wall of the mixing tank is fixedly supported by a plurality of equally spaced annularly distributed load cells.
[0007] In a preferred embodiment of the utility model, the stirring device includes a mounting plate, a stirring motor, a stirring shaft, and stirring support rods.
[0008] In a preferred embodiment of the present utility model, the mounting plate is horizontally fixed in the middle of the top of the mixing tank. The stirring motor is longitudinally fixed in the middle of the upper surface of the mounting plate, and a stirring shaft is arranged downward at the driving end. A plurality of stirring support rods are arranged on the stirring shaft at intervals in a staggered manner from top to bottom.
[0009] In a preferred embodiment of the present utility model, the heat tracing assembly includes a heating wire and an outer heat-insulating pad.
[0010] In a preferred embodiment of the present utility model, the heating wire is evenly wound and distributed along the outer side wall of the mixing tank, and the outer heat-insulating pad is wrapped on the outer side wall of the mixing tank outside the heating wire.
[0011] The beneficial effects of the present utility model are as follows: A small-scale mixing device for off-site soil remediation pointed out by the present utility model can effectively separate floating objects such as plastic products; reduce production costs and save floor space; and improve the efficiency of soil remediation. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:
[0013] Figure 1 is a schematic structural diagram of a preferred embodiment of a small-scale mixing device for off-site soil remediation of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0015] Please refer to Figure 1 As shown, the embodiments of the present utility model include:
[0016] A small-scale mixing device for off-site soil remediation, including a mixing tank 1, a stirring device, a contaminated soil feeding assembly 2, an industrial water feeding assembly 3, a stabilizer feeding assembly 4, and a heat tracing assembly.
[0017] Among them, the mixing tank 1 is arranged in a hollow open circular conical hopper structure, which is convenient for loading and unloading materials.
[0018] The top of the mixing tank 1 is correspondingly arranged with the discharge ports of the contaminated soil feeding component 2, the industrial water feeding component 3, and the stabilizing agent feeding component 4. The contaminated soil feeding component 2, the industrial water feeding component 3, and the stabilizing agent feeding component 4 respectively provide contaminated soil, industrial water, and stabilizing agent to the mixing tank 1 for mixing.
[0019] A discharge door 5 is arranged at the bottom of the mixing tank 1 for discharging the mixture stably.
[0020] The outer side wall of the mixing tank 1 is fixedly supported by a plurality of weighing sensors 6 distributed annularly at equal intervals, which are used to quantitatively weigh the contaminated soil, industrial water, and stabilizing agent before putting them in.
[0021] The stirring device is longitudinally fixed in the middle of the top of the mixing tank 1 and the stirring part is located inside the mixing tank 1, and it includes a mounting plate 7, a stirring motor 8, a stirring shaft 9, and stirring support rods 10.
[0022] The mounting plate 7 is horizontally fixed in the middle of the top of the mixing tank 1. The stirring motor 8 is longitudinally fixed on the middle of the upper surface of the mounting plate 7 and the driving end is downward with a stirring shaft 9 arranged. A plurality of stirring support rods 10 are arranged on the stirring shaft 9 at staggered intervals from top to bottom. By driving the stirring shaft 9 to rotate through the stirring motor 8, the stirring support rods 10 assist in stirring, improving the mixing efficiency of the mixture in the mixing tank 1.
[0023] The heat tracing component is fixed on the outer side wall of the mixing tank 1 and includes a heating wire 11 and an outer heat preservation and heat insulation pad 12.
[0024] The heating wire 11 (part of which is intercepted in the drawing) is evenly wound and distributed along the outer side wall of the mixing tank 1. The outer heat preservation and heat insulation pad 12 (part of which is intercepted in the drawing) covers the outer side wall of the mixing tank 1 outside the heating wire 11. The heating wire 11 provides a heat tracing effect for the mixing tank 1, and the outer heat preservation and heat insulation pad 12 is used to play a role in heat preservation and heat insulation, increasing the heating effect of the heating wire 11.
[0025] Working principle: Utilizing the characteristic that soil is easily soluble in water, the contaminated soil and the stabilizing agent undergo a chemical reaction in industrial water. At the same time, after objects with a relatively small density such as plastic products lose their attachment to the soil, they float to the water surface.
[0026] Working process: The contaminated soil, industrial water, and stabilizing agent are quantitatively put into the mixing tank 1 after being weighed by the weighing sensors 6. Subsequently, the stirring component and the heat tracing component are started to accelerate the dissolution of the contaminated soil and the occurrence of the stabilization reaction. After objects with a relatively small density such as plastic products lose their attachment to the soil, they gradually float to the water surface. Then, manual sorting is carried out on the top of the mixing tank 1. After the dissolution of the contaminated soil and the stabilization reaction are completed, the bottom discharge door 5 is opened to discharge to the next-level equipment.
[0027] In summary, the small-scale mixing equipment for ex situ soil remediation pointed out by the utility model can effectively separate floating objects such as plastic products, reduce production costs, save floor space, and improve soil remediation efficiency.
[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A small-scale mixing device for in-situ soil remediation, characterized in that, It includes a mixing tank, a stirring device, a contaminated soil feeding component, an industrial water feeding component, a stabilizing agent feeding component and a heat tracing component. The mixing tank is arranged in a hollow open circular conical hopper structure. The top of the mixing tank is correspondingly arranged with the discharge ports of the contaminated soil feeding component, the industrial water feeding component and the stabilizing agent feeding component respectively. A discharge door is arranged at the bottom of the mixing tank. The stirring device is longitudinally fixed in the middle of the top of the mixing tank and the stirring part is located inside the mixing tank. The heat tracing component is fixed on the outer side wall of the mixing tank.
2. The small-scale mixing equipment for ex situ soil remediation according to claim 1, characterized in that: The outer side wall of the mixing tank is fixedly supported by a plurality of weighing sensors distributed in an equally spaced annular manner.
3. The small-scale mixing device for off-site soil remediation according to claim 1, characterized in that, The stirring device includes a mounting plate, a stirring motor, a stirring shaft and stirring support rods.
4. A small-scale mixing device for off-site soil remediation according to claim 3, characterized in that The mounting plate is horizontally fixed in the middle of the top of the mixing tank. The stirring motor is longitudinally fixed in the middle of the upper surface of the mounting plate and a stirring shaft is arranged with its driving end facing downwards. A plurality of stirring support rods are arranged on the stirring shaft in a staggered and spaced manner from top to bottom.
5. The small-scale mixing equipment for ex situ soil remediation according to claim 1, characterized in that: The heat tracing component includes heating wires and an outer protective heat insulation pad.
6. The small-scale mixing device for off-site soil remediation according to claim 5, characterized in that, The heating wires are evenly wound and distributed along the outer side wall of the mixing tank. The outer protective heat insulation pad covers the outer side wall of the mixing tank outside the heating wires.