CN209502543U - A kind of NEW TYPE OF COMPOSITE contaminated soil treatment equipment - Google Patents
A kind of NEW TYPE OF COMPOSITE contaminated soil treatment equipment Download PDFInfo
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- CN209502543U CN209502543U CN201821843764.7U CN201821843764U CN209502543U CN 209502543 U CN209502543 U CN 209502543U CN 201821843764 U CN201821843764 U CN 201821843764U CN 209502543 U CN209502543 U CN 209502543U
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- 239000002689 soil Substances 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims description 4
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 66
- 239000002699 waste material Substances 0.000 claims abstract description 36
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 19
- 238000012216 screening Methods 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000003480 eluent Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 16
- 238000004062 sedimentation Methods 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005067 remediation Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 10
- 238000002386 leaching Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
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- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
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Abstract
本实用新型涉及一种新型复合污染土壤修复处理设备，包括粉碎机构、淋洗机构、筛分机构、氧化机构、废液回收机构，粉碎机构设置在淋洗机构的入口端，淋洗机构的出口端连接有筛分机构，筛分机构出口处通过管道依次连接有氧化机构和废液回收机构。本实用新型混合均匀，淋洗充分，修复效果好，废液回收利用率高，操作简单，使用方便，实用性强，安全环保。
The utility model relates to a new type of compound polluted soil remediation treatment equipment, which comprises a crushing mechanism, a rinsing mechanism, a screening mechanism, an oxidation mechanism, and a waste liquid recovery mechanism. The end is connected with a screening mechanism, and the outlet of the screening mechanism is sequentially connected with an oxidation mechanism and a waste liquid recovery mechanism through a pipeline. The utility model has the advantages of uniform mixing, sufficient rinsing, good restoration effect, high recycling rate of waste liquid, simple operation, convenient use, strong practicability, safety and environmental protection.
Description
技术领域technical field
本实用新型涉及污染土壤修复技术领域，具体涉及一种新型复合污染土壤处理设备。The utility model relates to the technical field of polluted soil remediation, in particular to a novel compound polluted soil treatment equipment.
背景技术Background technique
近年来，随着我国工业化的迅速发展和农业生产中化肥农药的广泛使用，大量重金属、有机物各类污染物通过各种途径进入到土壤环境，导致我国的土壤环境污染情况不断加剧。事实证明，土壤是构成自然生态系统的基本环境要素，也是人类赖以生存和发展的物质基础。土壤环境不仅影响植物的生长发育及农产品的数量、质量，还会通过食物链影响人类的身体健康和生命安全。因此，有必要采取合理的技术手段进行污染土壤修复，从而有效控制土壤污染引起的人体健康和生态环境风险。In recent years, with the rapid development of my country's industrialization and the widespread use of chemical fertilizers and pesticides in agricultural production, a large number of heavy metals and organic pollutants have entered the soil environment through various channels, leading to the continuous aggravation of my country's soil environmental pollution. Facts have proved that soil is the basic environmental element that constitutes the natural ecosystem and the material basis for human survival and development. The soil environment not only affects the growth and development of plants and the quantity and quality of agricultural products, but also affects human health and life safety through the food chain. Therefore, it is necessary to adopt reasonable technical means to remediate contaminated soil, so as to effectively control the human health and ecological environment risks caused by soil pollution.
目前，国内外针对土壤的重金属、有机物等污染已经研发了一系列的修复技术，常用技术大致可分为物理、化学和生物三种方法。相对于其他修复方式，土壤淋洗修复技术可快速将污染物从土壤中移除，短时间内完成高浓度污染土壤的治理，而且治理费用相对低廉。申请号为:201320891131.4的复合污染土壤修复处理设备，通过对复合污染土壤进行“淋洗-氧化-稳定化”的集成处理设备，能去除复合污染土壤中的重金属和有机污染物。但是，该集成设备在使用过程中，常常会出现如下一些问题：At present, a series of remediation technologies have been developed for the pollution of heavy metals and organic substances in soil at home and abroad. Commonly used technologies can be roughly divided into three methods: physical, chemical and biological. Compared with other remediation methods, soil leaching remediation technology can quickly remove pollutants from the soil, complete the treatment of high-concentration contaminated soil in a short period of time, and the treatment cost is relatively low. The application number is: 201320891131.4 The complex polluted soil remediation treatment equipment can remove heavy metals and organic pollutants in complex polluted soil through the integrated treatment equipment of "leaching-oxidation-stabilization" for complex polluted soil. However, during the use of this integrated device, the following problems often occur:
1、淋洗槽内淋洗剂与污染土壤常会出现淋洗不充分，混合不均匀的情况，导致修复不彻底，影响了后期土壤的修复工作；1. The leaching agent and contaminated soil in the leaching tank often have insufficient leaching and uneven mixing, resulting in incomplete restoration and affecting the subsequent soil restoration work;
2、对淋洗后的土壤缺少监测检查措施，无法判断淋洗后的土壤是否符合修复标准；2. Lack of monitoring and inspection measures for the soil after leaching, and it is impossible to judge whether the soil after leaching meets the restoration standards;
3、采用组合振动筛网，筛网容易发生堵塞，淋洗出料不清洁，不能保证有效的筛分，还影响设备正常运转；3. The combined vibrating screen is used, the screen is prone to clogging, the leaching discharge is not clean, effective screening cannot be guaranteed, and the normal operation of the equipment is also affected;
4、废液收集后不能循环利用，资源利用率较低。4. After the waste liquid is collected, it cannot be recycled, and the utilization rate of resources is low.
发明内容Contents of the invention
本实用新型目的是为了克服现有技术的不足而提供一种新型复合污染土壤处理设备。该设备混合均匀，淋洗充分，修复效果好，废液回收利用率高，操作简单，使用方便，实用性强，安全环保。The purpose of the utility model is to provide a novel complex polluted soil treatment equipment in order to overcome the deficiencies of the prior art. The equipment mixes evenly, fully rinses, has good repairing effect, has a high recycling rate of waste liquid, is simple to operate, easy to use, strong in practicability, and is safe and environmentally friendly.
为达到上述目的，本实用新型采用的技术方案是：一种新型复合污染土壤处理设备，包括粉碎机构、淋洗机构、筛分机构、氧化机构、废液回收机构，粉碎机构设置在淋洗机构的入口端，淋洗机构的出口端连接有筛分机构，筛分机构出口处通过管道依次连接有氧化机构和废液回收机构。In order to achieve the above purpose, the technical solution adopted by the utility model is: a new type of composite contaminated soil treatment equipment, including a crushing mechanism, a rinsing mechanism, a screening mechanism, an oxidation mechanism, and a waste liquid recovery mechanism. The inlet end of the washing mechanism is connected with a screening mechanism, and the outlet of the screening mechanism is connected with an oxidation mechanism and a waste liquid recovery mechanism through pipelines in turn.
优选的，所述粉碎机构，包括呈倒椎状的粉碎筒及安装在所述粉碎筒内部呈对称设置的两个粉碎轮。Preferably, the crushing mechanism includes an inverted cone-shaped crushing cylinder and two symmetrically arranged crushing wheels installed inside the crushing cylinder.
优选的，所述淋洗机构，包括筒体、推料轴、送料桨、搅拌棍、推料电机、淋洗液进液口、出料口、淋洗液回收槽，所述筒体呈横向设置，筒体的轴心处设有推料轴，推料轴上螺旋设置有送料桨，推料轴上还等距设置有搅拌棍，搅拌棍与送料桨呈间隔设置，推料轴的一端连接有推料电机，推料电机设置在筒体与粉碎筒连接一侧的外端部，筒体另一侧的端部设有出料口，筒体的筒壁上方设有淋洗液进液口，筒体的筒壁下方设有淋洗液回收槽。Preferably, the rinsing mechanism includes a cylinder, a pushing shaft, a feeding paddle, a stirring rod, a pushing motor, an eluent inlet, an outlet, and a eluent recovery tank, and the cylinder is horizontally Setting, the shaft center of the cylinder is provided with a pushing shaft, on which a feeding paddle is spirally arranged, and a stirring rod is equidistantly arranged on the pushing shaft, the stirring rod and the feeding paddle are arranged at intervals, and one end of the pushing shaft A pusher motor is connected, and the pusher motor is set at the outer end of the cylinder connected to the crushing cylinder, the other end of the cylinder is provided with a discharge port, and the top of the cylinder wall is provided with a washing liquid inlet. A liquid port, and a eluent recovery tank is provided under the cylinder wall of the cylinder.
优选的，所述筛分机构，包括两个上下平行设置的筛网组成的双层分级振动筛和设置在双层分级振动筛上方的至少一个高压喷淋头。Preferably, the screening mechanism includes a double-layer classifying vibrating screen composed of two screens arranged in parallel up and down, and at least one high-pressure spray head arranged above the double-layer classifying vibrating screen.
优选的，所述氧化机构包括具有对泥水进行氧化作用的氧化池、用于对氧化后的泥水进行分级的第一水力旋流器、经所述第一水力旋流器分离后对泥水进行二次分离的第二水力旋流器、对所述第二水力旋流器分离后的废液进行沉淀的沉淀池、对所述沉淀池沉淀形成的泥浆进行脱水的压滤机、用于接收所述压滤机脱水后泥沙的固化稳定化反应池。Preferably, the oxidizing mechanism includes an oxidation tank having an oxidation effect on the muddy water, a first hydrocyclone for grading the oxidized muddy water, and a second hydrocyclone for the muddy water after being separated by the first hydrocyclone. The second hydrocyclone for secondary separation, the sedimentation tank for sedimenting the waste liquid separated by the second hydrocyclone, the filter press for dehydrating the mud formed by the sedimentation in the sedimentation tank, and the filter press for receiving the The solidification and stabilization reaction tank of the sediment after dehydration by the filter press.
优选的，所述废液回收机构，包括与所述压滤机管道连接的废液池、连接所述废液池和淋洗液回收槽管道的送液泵、与送液泵管道连接的净化柱、与净化柱管道连接的储液池，储液池出液端的管道连接在淋洗液进液口上。Preferably, the waste liquid recovery mechanism includes a waste liquid pool connected to the pipeline of the filter press, a liquid delivery pump connected to the waste liquid pool and the pipeline of the eluent recovery tank, and a purification system connected to the pipeline of the liquid delivery pump. The column, the liquid storage tank connected with the pipeline of the purification column, and the pipeline at the liquid outlet end of the liquid storage tank is connected with the eluent liquid inlet.
优选的，所述出料口内设有在线监测的重金属检测仪。Preferably, an on-line monitoring heavy metal detector is installed in the discharge port.
优选的，所述双层分级振动筛的上层筛网的孔径大于下层筛网的孔径。Preferably, the aperture of the upper screen of the double-layer classifying vibrating screen is larger than the aperture of the lower screen.
优选的，所述储液池出液端的管道连接在高压喷淋头上。Preferably, the pipeline at the liquid outlet of the liquid storage tank is connected to a high-pressure shower head.
由于上述技术方案运用，本实用新型与现有技术相比具有下列优点：Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:
(1)土壤打散供料(1) Soil breaking up and feeding
设备在传统的粉碎筒中加入粉碎轮，用于打碎粘性较大的粘土块，并将黏附在石块上的土壤颗粒剥离，有更好的松散、分离及造浆效果，解决粘性污染土壤不能彻底打散造成土壤修复不彻底及容易导致筛网发生堵塞的问题。The equipment adds a crushing wheel to the traditional crushing cylinder, which is used to break the sticky clay blocks and peel off the soil particles adhered to the stones, which has better loosening, separation and pulping effects, and solves the problem of viscous polluted soil. Thorough dispersal will result in incomplete soil remediation and easily lead to the problem of clogging of the screen.
(2)混合搅拌均匀(2) Mix and stir evenly
淋洗机构的推料轴上设有螺旋桨和搅拌棍，污染土壤沿着水平方向前进，前进过程中被螺旋桨和搅拌棍充分的混合搅拌，污染土壤被充分化学反应，其混合效果好，工作效率高。The pusher shaft of the washing mechanism is equipped with a propeller and a stirring rod, and the polluted soil advances along the horizontal direction. During the advancing process, it is fully mixed and stirred by the propeller and the stirring rod, and the polluted soil is fully chemically reacted. The mixing effect is good and the working efficiency is high. high.
(3)淋洗效果检测(3) Detection of washing effect
土壤与淋洗液经搅拌棍充分搅拌混合后，再经出料口的重金属检测仪检测，确定达到设定要求后，再进行下一步操作，保证了修复效果，提高修复效率。After the soil and the eluent are fully stirred and mixed by the stirring rod, they are then tested by the heavy metal detector at the discharge port. After confirming that the set requirements are met, the next step is performed to ensure the repair effect and improve the repair efficiency.
(4)不堵塞筛网(4) Do not block the screen
双层分级振动筛上方设置高压喷头，利用高压喷头的冲击力，能进一步解决筛网网孔堵塞问题，还能提高筛网使用效率。A high-pressure nozzle is installed above the double-layer grading vibrating screen. Using the impact force of the high-pressure nozzle can further solve the problem of screen mesh blockage and improve the efficiency of the screen.
(5)废液回收再利用(5) Waste liquid recycling and reuse
收集在废液池内的废液经多层净化处理后重新回到系统中循环使用，有效节约成本，减少资源浪费的问题。The waste liquid collected in the waste liquid pool is returned to the system for recycling after multi-layer purification treatment, which effectively saves costs and reduces the waste of resources.
附图说明Description of drawings
图1为本实用新型整体结构示意图；Fig. 1 is a schematic diagram of the overall structure of the utility model;
图2为本实用新型淋洗机构结构示意图；Fig. 2 is a structural schematic diagram of the washing mechanism of the utility model;
图3为本实用新型筛分机构结构示意图；Fig. 3 is a structural schematic diagram of the screening mechanism of the present invention;
其中，1、粉碎机构；2、淋洗机构；3、筛分机构；4、氧化池；5、第一水力旋流器；6、第二水力旋流器；7、沉淀池；8、压滤机；9、固化稳定反应池；10、废液池；11、送液泵；12、净化柱；13、储液池；101、粉碎筒； 102、粉碎轮；201、筒体；202、推料轴；203、送料桨；204、搅拌棍；205、淋洗液进液口；206、出料口；207、淋洗液回收槽；208、推料电机；301、高压喷淋头；302、双层份级振动筛。Among them, 1. Crushing mechanism; 2. Rinsing mechanism; 3. Screening mechanism; 4. Oxidation tank; 5. First hydrocyclone; 6. Second hydrocyclone; 7. Sedimentation tank; 8. filter; 9. curing and stabilizing reaction tank; 10. waste liquid tank; 11. liquid delivery pump; 12. purification column; 13. liquid storage tank; 101. crushing cylinder; 102. crushing wheel; Pushing shaft; 203, feeding paddle; 204, stirring rod; 205, eluent inlet; 206, discharge port; 207, eluent recovery tank; 208, pushing motor; 301, high-pressure spray head; 302. Double-layer grading vibrating screen.
具体实施方式Detailed ways
下面将结合附图对本实用新型优选实施方案进行详细说明：Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail:
如图1所示的一种新型复合污染土壤处理设备，包括粉碎机构1、淋洗机构2、筛分机构3、氧化机构、废液回收机构，粉碎机构1设置在淋洗机构 2的入口端，淋洗机构2的出口端连接有筛分机构3，筛分机构3出口处通过管道依次连接有氧化机构和废液回收机构。As shown in Figure 1, a new type of complex polluted soil processing equipment includes a crushing mechanism 1, a rinsing mechanism 2, a screening mechanism 3, an oxidation mechanism, and a waste liquid recovery mechanism. The crushing mechanism 1 is arranged at the inlet end of the rinsing mechanism 2 A screening mechanism 3 is connected to the outlet of the washing mechanism 2, and the outlet of the screening mechanism 3 is connected to an oxidation mechanism and a waste liquid recovery mechanism through pipelines in sequence.
具体的，如图2所示粉碎机构1包括呈倒椎状的粉碎筒101及安装在所述粉碎筒101内部呈对称设置的两个粉碎轮102，粉碎轮102用于打碎粘性较大的粘土块，并将黏附在石块上的土壤颗粒剥离，有更好的松散、分离及造浆效果，从而解决含粘性污染土壤不能彻底打散，造成混合不均匀，反应不充分的问题。Specifically, as shown in FIG. 2, the crushing mechanism 1 includes an inverted cone-shaped crushing cylinder 101 and two symmetrically arranged crushing wheels 102 installed inside the crushing cylinder 101. The crushing wheels 102 are used to crush sticky particles. Clay blocks, and the soil particles adhered to the stones are peeled off, which has better loosening, separation and pulping effects, so as to solve the problem that the viscous contaminated soil cannot be completely broken up, resulting in uneven mixing and insufficient reaction.
具体的，淋洗机构2包括筒体201、推料轴202、送料桨203、搅拌棍204、推料电机208、淋洗液进液口205、出料口206、淋洗液回收槽207，筒体201 呈横向设置，筒体201的轴心处设有推料轴202，推料轴202上螺旋设置有送料桨203，螺旋状的送料浆203能够推动污染土壤沿着水平方向前进；推料轴202上还等距设置有搅拌棍204，搅拌棍204与送料桨203呈间隔设置，污染土壤在前进过程中被搅拌棍204充分混合搅拌，淋洗液混合效果好；推料轴 202的一端连接有推料电机208，推料电机208设置在筒体201与粉碎筒101 连接一侧的外端部，筒体201另一侧的端部设有出料口206，筒体201的筒壁上方设有淋洗液进液口205，筒体201的筒壁下方设有淋洗液回收槽207。Specifically, the washing mechanism 2 includes a cylinder body 201, a pushing shaft 202, a feeding paddle 203, a stirring rod 204, a pushing motor 208, an eluent inlet 205, an outlet 206, and a eluent recovery tank 207, The cylinder body 201 is horizontally arranged, and the shaft center of the cylinder body 201 is provided with a pushing shaft 202, and a feeding paddle 203 is spirally arranged on the pushing shaft 202, and the spiral feeding slurry 203 can push the polluted soil forward along the horizontal direction; Stirring rods 204 are equidistantly arranged on the material shaft 202, and the stirring rods 204 and the feeding paddles 203 are arranged at intervals. The contaminated soil is fully mixed and stirred by the stirring rods 204 during the advancing process, and the eluent mixing effect is good; One end is connected with a pusher motor 208, and the pusher motor 208 is arranged on the outer end of the cylinder body 201 connected with the crushing cylinder 101. A eluent liquid inlet 205 is provided above the wall, and a eluent recovery tank 207 is provided below the cylinder wall of the cylinder body 201 .
具体的，如图3所示筛分机构3包括两个上下平行设置的筛网组成的双层分级振动筛302和设置在双层分级振动筛对应上方的至少一个高压喷淋头 301，双层分级振动筛302的上层筛网的孔径大于下层筛网的孔径；高压喷淋头301具有冲击力，能有效清除筛网网孔堵塞问题，还能提高筛网使用效率。Specifically, as shown in Figure 3, the screening mechanism 3 includes a double-layer grading vibrating screen 302 composed of two screens arranged in parallel up and down and at least one high-pressure shower head 301 arranged on the corresponding top of the double-layer grading vibrating sieve. The aperture of the upper screen of the classifying vibrating screen 302 is larger than the aperture of the lower screen; the high-pressure spray head 301 has impact force, which can effectively remove the blockage of the screen mesh and improve the use efficiency of the screen.
具体的，氧化机构包括具有对泥水进行氧化作用的氧化池4、用于对氧化后的泥水进行分级的第一水力旋流器5、经所述第一水力旋流器5分离后对泥水进行二次分离的第二水力旋流器6、对所述第二水力旋流器6分离后的废液进行沉淀的沉淀池7、对所述沉淀池7沉淀形成的泥浆进行脱水的压滤机8、用于接收所述压滤机8脱水后泥沙的固化稳定化反应池9；废液回收机构，包括与所述压滤机8管道连接的废液池10、连接所述废液池10和所述淋洗液回收槽207管道的送液泵11、与所述送液泵11管道连接的净化柱 12、与所述净化柱12管道连接的储液池13，所述储液池13出液端的管道连接在所述淋洗液进液口205上，收集在废液池10内的废液经多层净化处理后重新回到系统中循环使用，能有效节约成本，减少资源浪费的问题。Concretely, the oxidation mechanism includes an oxidation tank 4 having an oxidation effect on the muddy water, a first hydrocyclone 5 for grading the oxidized muddy water, and separating the muddy water through the first hydrocyclone 5. The second hydrocyclone 6 for secondary separation, the sedimentation tank 7 for sedimenting the waste liquid separated by the second hydrocyclone 6, and the filter press for dehydrating the mud formed by the sedimentation in the sedimentation tank 7 8. A solidification and stabilization reaction tank 9 for receiving sediment after dehydration by the filter press 8; a waste liquid recovery mechanism, including a waste liquid pool 10 connected to the filter press 8 and connected to the waste liquid pool 10 and the liquid delivery pump 11 of the pipeline of the eluent recovery tank 207, the purification column 12 connected with the pipeline of the liquid delivery pump 11, the liquid storage tank 13 connected with the pipeline of the purification column 12, and the liquid storage tank 13 The pipe at the liquid outlet is connected to the eluent liquid inlet 205, and the waste liquid collected in the waste liquid pool 10 is returned to the system for recycling after multi-layer purification treatment, which can effectively save costs and reduce waste of resources The problem.
在本实施例中，储液池13出液端的管道还可以连接在所述高压喷淋头 301上；出料口206内还设有在线监测的重金属检测仪(图中未画出)，经淋洗液充分混合反应的土壤由重金属检测仪检测后合格后，进入下一个流程。当重金属检测仪检测不合格时，污染土壤则继续留在淋洗机构内继续混合反应，直至合格。In this embodiment, the pipeline at the outlet end of the liquid storage tank 13 can also be connected to the high-pressure shower head 301; an on-line monitoring heavy metal detector (not shown) is also provided in the discharge port 206. After the eluent is fully mixed and the reaction soil is tested by the heavy metal detector, it enters the next process. When the heavy metal detector fails to pass the test, the contaminated soil will continue to stay in the washing mechanism and continue to mix and react until it passes the test.
本设备的具体工作流程是，受复合污染土壤由粉碎筒101进入设备，土壤通过粉碎轮102粉碎后，经推料轴202上螺旋送料桨203的带动进入到淋洗机构2，淋洗剂经淋洗液进液口205进入到筒体201中，经搅拌棍204充分的混合搅拌，充分化学反应后，土壤进入到出料口206，经出料口206内设置的重金属检测仪检测合格后，土壤进入双层分级振动筛302中。在上方高压喷淋头301的作用下，土壤被快速筛分出粒径为25～50mm的砾石与粒径为2～25mm的粗砂。砾石与粗砂经清水直接冲洗后，可以直接回用。由双层分级振动筛302输出的小于2mm泥沙，经双层分级振动筛302下部出口进入氧化池4。氧化后的泥沙经泵先后进入到第一水力旋流器5和第二水力旋流器6，由第二水力旋流器6下方流出的粒径为0.075～2mm细砂可以直接回用。第二水力旋流器6上方输出的泥浆进入沉淀池7，同时投入絮凝剂，得到的沉淀物进入压滤机8，经过脱水后进入固化稳定化反应池9，固化稳定化得到的固体产物根据其污染物浓度可以做回用或者安全处置，废液由废液池 10收集。废液池10内的废液经送液泵11通过管路连接至用于将废液净化回收的净化柱12上，经净化柱12吸附净化后的液体送入储液槽13内，再经管道送到高压喷淋口301或淋洗液进液口205内再循环。The specific working process of this equipment is that the complex polluted soil enters the equipment from the crushing cylinder 101, after the soil is crushed by the crushing wheel 102, it enters the washing mechanism 2 driven by the screw feeding paddle 203 on the pushing shaft 202, and the washing agent passes through The eluent liquid inlet 205 enters the cylinder 201, and is fully mixed and stirred by the stirring rod 204. After sufficient chemical reaction, the soil enters the discharge port 206, and the heavy metal detector installed in the discharge port 206 passes the test. , the soil enters the double-layer classifying vibrating screen 302. Under the action of the upper high-pressure sprinkler head 301, the soil is quickly sieved into gravel with a particle size of 25-50 mm and coarse sand with a particle size of 2-25 mm. Gravel and coarse sand can be directly reused after being washed directly with clean water. The silt less than 2 mm output by the double-layer classifying vibrating screen 302 enters the oxidation pond 4 through the lower outlet of the double-layer classifying vibrating screen 302 . The oxidized sand enters the first hydrocyclone 5 and the second hydrocyclone 6 successively through the pump, and the fine sand with a particle size of 0.075-2mm flowing out from the bottom of the second hydrocyclone 6 can be directly reused. The mud output above the second hydrocyclone 6 enters the sedimentation tank 7, and flocculant is dropped into at the same time, and the precipitate obtained enters the filter press 8, and enters the solidification and stabilization reaction tank 9 after dehydration, and the solid product obtained by solidification and stabilization is based on The concentration of pollutants can be reused or safely disposed of, and the waste liquid is collected by the waste liquid pool 10 . The waste liquid in the waste liquid pool 10 is connected to the purification column 12 for purifying and recovering the waste liquid through the liquid delivery pump 11 through the pipeline, and the liquid absorbed and purified by the purification column 12 is sent into the liquid storage tank 13, and then The pipeline is sent to the high-pressure spray port 301 or the eluent liquid inlet 205 for recirculation.
上述实施例只为说明本实用新型的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本实用新型的内容并据以实施，并不能以此限制本实用新型的保护范围，凡根据本实用新型精神实质所作的等效变化或修饰，都应涵盖在本实用新型的保护范围之内。The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. Equivalent changes or modifications made according to the spirit of the present utility model shall fall within the protection scope of the present utility model.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110773560A (en) * | 2019-11-14 | 2020-02-11 | 青岛理工大学 | Heavy metal contaminated soil outfield prosthetic devices |
| CN112317524A (en) * | 2020-11-02 | 2021-02-05 | 北京高能时代环境技术股份有限公司 | Contaminated soil leaching treatment system and method |
| CN112588803A (en) * | 2020-12-07 | 2021-04-02 | 中科鼎实环境工程有限公司 | Restoration equipment and restoration method for engineering heavy metal arsenic and lead polluted soil |
| CN113000578A (en) * | 2021-01-29 | 2021-06-22 | 生态环境部南京环境科学研究所 | Device and method for in-situ remediation of soil in POP pesticide contaminated site |
| CN114226426A (en) * | 2021-12-22 | 2022-03-25 | 时科环境技术(上海)有限公司 | Device for spraying remediation agent to soil and operation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773560A (en) * | 2019-11-14 | 2020-02-11 | 青岛理工大学 | Heavy metal contaminated soil outfield prosthetic devices |
| WO2021093235A1 (en) * | 2019-11-14 | 2021-05-20 | 青岛理工大学 | External field repair device for heavy metal contaminated soil |
| CN110773560B (en) * | 2019-11-14 | 2021-08-24 | 青岛理工大学 | A device for field restoration of heavy metal polluted soil |
| CN112317524A (en) * | 2020-11-02 | 2021-02-05 | 北京高能时代环境技术股份有限公司 | Contaminated soil leaching treatment system and method |
| CN112588803A (en) * | 2020-12-07 | 2021-04-02 | 中科鼎实环境工程有限公司 | Restoration equipment and restoration method for engineering heavy metal arsenic and lead polluted soil |
| CN113000578A (en) * | 2021-01-29 | 2021-06-22 | 生态环境部南京环境科学研究所 | Device and method for in-situ remediation of soil in POP pesticide contaminated site |
| CN114226426A (en) * | 2021-12-22 | 2022-03-25 | 时科环境技术(上海)有限公司 | Device for spraying remediation agent to soil and operation method thereof |
| CN114226426B (en) * | 2021-12-22 | 2023-02-28 | 时科环境技术(上海)有限公司 | Device for spraying remediation agent to soil and operation method thereof |
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