CN211302729U - Pollute soil and sediment solidification stabilization and handle mixing arrangement - Google Patents

Abstract

The utility model discloses a contaminated soil and sediment solidification and stabilization treatment mixing device, which comprises a mixing barrel (4) with a slurry feed port (1) and a mixed product discharge port (5), a stirrer arranged in the mixing barrel (4) and a driving device connected with the stirrer; the device also comprises a solidification and stabilization material batching device (6) communicated with the mixing cylinder body (4). The device for solidifying, stabilizing, treating and mixing the polluted soil and the sediment has the advantages of being great in material proportion difference, good in material mixing effect due to large specific gravity difference, short in mixing time, wide in application range and the like.

Description

Pollute soil and sediment solidification stabilization and handle mixing arrangement

Technical Field

The utility model relates to a soil and bed mud are handled and are dealt with technical field, especially relate to a pollute soil and bed mud solidification stabilization and deal with mixing arrangement.

Background

Soil and sediment are used as receptors, in the development of socioeconomic, the emission and the influx of a plurality of pollutants are carried out, particularly heavy metal pollutants enter the soil and the sediment and show the processes of gradual accumulation and pollution aggravation, and the heavy metals are difficult to naturally purify, are easy to enrich through a food chain and have great harm to the environment and human bodies. With the continuous development of social economy, heavy metal pollution events of soil and bottom sediment occur frequently, and the treatment and disposal of the heavy metal polluted soil and bottom sediment become the focus and hot spot of attention of broad scholars and governments in various regions.

The treatment technologies of the heavy metal contaminated soil and bottom mud are numerous, including biological-ecological, physical, chemical and other treatment technical methods, and particularly mainly comprise traditional sanitary landfill, incineration and solidification stabilization treatment. The traditional landfill and incineration disposal method has the disadvantages of wide occupied area, high operation cost, easy secondary pollution and the like. The comprehensive treatment mode of solidification stabilization treatment and resource utilization is the main development flow of heavy metal contaminated soil and bottom mud treatment, the technology is wide in application range, the resource utilization of the contaminated soil and the bottom mud can be realized while pollutants are treated, the contaminated soil and the bottom mud are consumed on the spot, and secondary pollution is basically avoided.

The method comprises the steps of curing and stabilizing treatment and resource utilization of the dyed soil and the bottom mud, wherein the key process is the stirring and mixing of the polluted soil, the bottom mud and a curing and stabilizing material, and the stirring and mixing device is the key. The solidification and stabilization material is added into the slurry material, and after the slurry material and the solidification and stabilization material are fully and uniformly mixed, the slurry material and the solidification and stabilization material fully react to form a solidified body and stabilize pollutants. The existing stirring and mixing device basically mainly uses stirring and mixing and mainly has the following defects: firstly, a large amount of impurities contained in soil and dredged sediment, including plant residues, root systems, gravels, bricks and the like, are difficult to remove, and a stirring device is easy to damage and the mixing uniformity is affected in the stirring and mixing process; secondly, the added curing and stabilizing materials are mainly added manually, so that time and labor are wasted, accurate measurement is difficult, and the adding amount of the curing and stabilizing materials is difficult to accurately calculate; thirdly, in the stirring and mixing process of the slurry and the solidification and stabilization material, due to the structural problem of the cylinder body and the mixing stirring shaft, a mixing dead angle is easy to occur, so that partial materials are difficult to be fully stirred and mixed, and finally the mixed materials are not uniform; fourthly, the processes of adding and curing stabilizing materials, stirring and mixing, outputting materials and the like cannot be automatically controlled and operated.

In summary, how to effectively solve the problems of poor material mixing effect and the like with large specific gravity, proportion and particle size difference is a problem which needs to be solved urgently by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pollute soil and sediment solidification stabilization and handle mixing arrangement, should pollute soil and sediment solidification stabilization and handle mixing arrangement to material ratio disparity, the material that the proportion difference is big mixes the effect better, has characteristics such as mixing time is short, application range is wide.

In order to solve the technical problem, the utility model provides a following technical scheme:

a curing and stabilizing treatment mixing device for polluted soil and bottom mud comprises a mixing barrel with a mud feeding hole and a mixed product discharging hole, a stirrer arranged in the mixing barrel and a driving device connected with the stirrer; still include with the solidification stabilization material dosing unit that mixes the barrel intercommunication.

Preferably, a solidification and stabilization material feeding hole is formed in the mixing cylinder, and the solidification and stabilization material batching device is connected with the solidification and stabilization material feeding hole through an automatic solidification and stabilization material conveying and batching belt.

Preferably, an automatic weighing device is arranged on the solidifying and stabilizing material batching device.

Preferably, the device further comprises a PLC control device, and the PLC control device is connected with the driving device, the solidification and stabilization material batching device and the automatic weighing device.

Preferably, a filter screen is arranged in the mixing cylinder and below the slurry feeding hole.

Preferably, a coarse material discharge port is formed in the end part of the mixing cylinder and is positioned above the filter screen.

Preferably, the slurry inlet is arranged at the end of the mixing cylinder and is positioned at the opposite side of the coarse material outlet.

Preferably, two stirring main shafts which rotate reversely are arranged in the mixing cylinder.

The utility model provides a pollute soil and sediment solidification stabilization and deal with mixing arrangement, including mixing barrel, agitator, drive arrangement and solidification stabilization material dosing unit, mix the barrel and have the mud feed inlet and mix the product discharge gate, mix barrel, agitator and drive arrangement constitution and mix the machine. The agitator sets up in the mixing drum, and the agitator mixes, stirs soil and bed mud misce bene in to the mixing drum, makes the material that advances reach intensive mixing stirring effect, improves size mixing degree and efficiency. The driving device is connected with the stirrer and provides power for the stirrer.

Solidification stabilizing material dosing unit and mixing barrel intercommunication, solidification stabilizing material dosing unit gets into solidification stabilizing material for mixing the barrel, and the machine is reinforced, and labour saving and time saving reduces operator intensity of labour, and work efficiency is higher, and is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a contaminated soil and sediment solidification and stabilization treatment mixing device according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of fig. 1.

The drawings are numbered as follows:

1-slurry feeding port, 2-filter screen, 3-solidification stabilizing material feeding port, 4-mixing barrel, 5-mixed product discharging port, 6-solidification stabilizing material batching device and 7-solidification stabilizing material automatic conveying and batching belt.

Detailed Description

The core of the utility model is to provide a pollute soil and sediment solidification stabilization and handle mixing arrangement, should pollute soil and sediment solidification stabilization and handle mixing arrangement to material ratio disparity, the material that the proportion difference is big mixes the effect better, has characteristics such as mixing time is short, application range is wide.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a contaminated soil and sediment solidification and stabilization treatment mixing device according to an embodiment of the present invention; fig. 2 is another schematic structural diagram of fig. 1.

In a specific embodiment, the device for solidifying, stabilizing, treating and mixing contaminated soil and bottom mud provided by the utility model comprises a mixing cylinder 4 with a mud feeding port 1 and a mixed product discharging port 5, a stirrer arranged in the mixing cylinder 4, and a driving device connected with the stirrer; and a solidifying and stabilizing material batching device 6 communicated with the mixing cylinder 4.

In the structure, the contaminated soil and bottom mud solidification and stabilization treatment mixing device comprises a mixing barrel 4, a stirrer, a driving device and a solidification and stabilization material batching device 6, wherein the mixing barrel 4 is provided with a slurry feeding hole 1 and a mixed product discharging hole 5, and the mixing barrel 4, the stirrer and the driving device form a mixing machine. The agitator sets up in mixing barrel 4, and the agitator mixes, stirs soil and bed mud misce bene in to mixing barrel 4, makes the material that advances reach intensive mixing stirring effect, improves size mixing degree and efficiency. The driving device is connected with the stirrer and provides power for the stirrer.

Solidification stabilizing material dosing unit 6 and mixing barrel 4 intercommunication, solidification stabilizing material dosing unit 6 gets into solidification stabilizing material for mixing barrel 4, and the machine is reinforced, and labour saving and time saving reduces operator intensity of labour, and work efficiency is higher, and is more convenient.

On the basis of the specific embodiment, the curing and stabilizing material feeding hole 3 is formed in the mixing cylinder 4, the curing and stabilizing material batching device 6 is connected with the curing and stabilizing material feeding hole 3 through the curing and stabilizing material automatic conveying and batching belt 7, the curing and stabilizing material automatic conveying and batching belt 7 is good in material conveying stability, and the conveying speed is high. Preferably, set up the protection pipeline in solidification stabilization material automatic conveying conveyer belt 7 periphery, avoid the material to drop and hurt the staff, improve the security.

In order to further optimize the technical scheme, an automatic weighing device is arranged on the solidification and stabilization material batching device 6 and is used for accurately metering the solidification and stabilization materials entering the mixing barrel body 4, and the addition amount of the solidification and stabilization materials is added in proportion according to the weight of the premixed soil and the bottom mud materials entering the mixing barrel body 4, so that the proportioning is more reasonable and accurate.

The utility model provides a pollute soil and sediment solidification stabilization and deal with mixing arrangement under the unchangeable condition of other parts, still include PLC controlling means, PLC controlling means and drive arrangement, solidification stabilization material dosing unit 6 and automatic weighing device are all connected, and the configuration proportion of solidification stabilization material, weigh, transfer rate all set for and automatic control through PLC controlling means, and control is convenient, accurate.

In another more reliable embodiment, on the basis of any one of the above embodiments, the filter screen 2 is arranged in the mixing cylinder 4 and below the slurry feeding port 1, fine materials of the materials enter the mixing cylinder 4 through the filter screen 2, coarse materials are left on the filter screen 2, residual impurities do not enter the mixing cylinder 4, small impurities are removed, the feeding quality is ensured, the requirement of raw materials for preparing the curing converter is met, and the subsequent curing stabilization effect is ensured; the stirrer can be protected during stirring and mixing. It should be noted that the size of the holes of the filter screen 2 is not limited, and may be determined according to the practical application, for example, the coarse material with a size of more than 5mm can be effectively intercepted.

Further optimize above-mentioned technical scheme, the position that the tip of mixing barrel 4 just is located filter screen 2 is equipped with the coarse fodder discharge port, can discharge the coarse fodder through the coarse fodder discharge port, and remaining mud gets into stirring mixing arrangement, and the stirring reaction with solidification stabilization material. The size and the shape of the specific coarse material discharge port are not limited, and can be set by oneself according to different specific use conditions, and the specific coarse material discharge port is within the protection range of the utility model.

Further optimize above-mentioned technical scheme, mud feed inlet 1 sets up in the tip of mixing barrel 4, and is located the offside of coarse fodder discharge port, and make full use of filter screen 2's width guarantees that the fine material sieves as far as, improves the fine material utilization ratio.

For the contaminated soil and sediment solidification and stabilization treatment mixing device in each embodiment, a gravity-free mixer can be adopted, two stirring main shafts which rotate reversely are arranged in the mixing cylinder body 4, and the convection mixing principle is fully utilized, namely, a flowing layer is formed by upward throwing motion of materials in the mixer to generate instant weightlessness so as to achieve the optimal mixing effect state; and the materials move axially under the action of the specific overlapped blades, so that the materials are mixed in an all-dimensional range to form a random optimal motion state, the materials can be stirred and mixed in an all-dimensional and dead-angle-free manner, the mixing efficiency is improved, and the mixing effect is achieved. The stirring main shaft is connected with a driving device, and the driving device is connected with a PLC control device to control the running condition of the stirrer.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides a pollute soil and sediment solidification stabilization handles mixing arrangement and has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A contaminated soil and bottom mud solidification and stabilization treatment mixing device is characterized by comprising a mixing barrel (4) with a mud feeding hole (1) and a mixed product discharging hole (5), a stirrer arranged in the mixing barrel (4), and a driving device connected with the stirrer; the device also comprises a solidification and stabilization material batching device (6) communicated with the mixing cylinder body (4).

2. The device for solidifying, stabilizing, disposing and mixing contaminated soil and bottom mud as claimed in claim 1, wherein the mixing cylinder (4) is provided with a solidified stabilizing material feeding port (3), and the solidified stabilizing material batching device (6) is connected with the solidified stabilizing material feeding port (3) through an automatic solidified stabilizing material conveying and distributing belt (7).

3. The contaminated soil and bottom mud solidification and stabilization treatment mixing device according to claim 2, wherein an automatic weighing device is arranged on the solidification and stabilization material batching device (6).

4. The device for solidifying, stabilizing, disposing and mixing contaminated soil and bottom mud as claimed in claim 3, further comprising a PLC control device, wherein the PLC control device is connected with the driving device, the solidifying and stabilizing material batching device (6) and the automatic weighing device.

5. The device for solidification, stabilization and treatment of contaminated soil and bottom mud according to claim 1, characterized in that a filter screen (2) is arranged in the mixing cylinder (4) at a position below the slurry feed inlet (1).

6. The contaminated soil and sediment solidification and stabilization treatment mixing device according to claim 5, wherein a coarse material discharge port is provided at the end of the mixing cylinder (4) at a position above the filter screen (2).

7. The contaminated soil and sediment solidification and stabilization treatment mixing device according to claim 6, wherein the slurry feed inlet (1) is arranged at the end of the mixing cylinder (4) opposite to the coarse material discharge outlet.

8. The contaminated soil and bottom mud solidification, stabilization, disposal and mixing apparatus according to claim 1, wherein two counter-rotating stirring spindles are provided in the mixing cylinder (4).

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